JP6970083B2 - Fluid regulator - Google Patents

Description

The present invention relates to a technique for adjusting a mixed state of a gas or liquid whose properties change with time.

In an internal combustion engine such as a gas engine, in order to avoid deterioration of exhaust gas properties and misfire due to a change in combustion state, there may be a restriction on the amount of change in the amount of heat of the fuel gas used per unit time.

Regarding this point, for example, Patent Document 1 describes a mixed fuel by changing the mixing ratio of a main fuel gas (for example, city gas) having a stable calorific value with respect to an auxiliary fuel gas (for example, biogas) whose calorific value is liable to fluctuate. A technique for adjusting the calorific value of the gas to a target value is described.

Further, in Patent Document 2, a hollow cylindrical portion (cylindrical hollow member 5) in which a large number of orifices are spirally formed along the outer wall surface is inserted into a mixing vessel 1 and via the hollow cylindrical portion. A technique for rapidly mixing the steam supplied into the mixing vessel with carbon dioxide introduced through an opening 3 formed in the wall surface of the mixing vessel is described.
Further, in Patent Document 3, two different gas supply pipes (first) are provided by arranging a plurality of baffle members at intervals inside the cylinder and filling the inside of the cylinder with ceramic balls. A technique for rapidly mixing a flammable gas and a combustible gas supplied from the gas supply unit 22a and the second gas supply unit 22b) is described.

Japanese Unexamined Patent Publication No. 2011-169294 UK Pat. No. 1,484,489 Japanese Unexamined Patent Publication No. 2009-29680

However, as described in Patent Document 1, a technique for stabilizing the calorific value of a fuel gas (mixed fuel gas) supplied to an internal combustion engine by changing the mixing ratio of a plurality of types of fuel gas is a fuel having a stable calorific value. It cannot be adopted when it is difficult to obtain gas.

Further, there are devices and processes in which the amount of property fluctuation per unit time is limited, such as a change in the composition of the raw material gas supplied for the catalytic reaction, as well as a change in the calorific value of the fuel gas supplied to the internal combustion engine.
Further, even in a diesel engine using liquid fuel, for example, when switching from biodiesel fuel to fossil fuel light oil, the same problem as the above-mentioned fuel gas exists.

Regarding these problems, Patent Documents 2 and 3 all have a plurality of different gas supply sources (inlet chamber 28 and opening 3 for Patent Document 2, and first gas supply units 22a and 2 for Patent Document 3). It has been shown that the technique is intended to quickly mix two types of gas supplied from the gas supply unit 22b) of the above (Patent Document 2, page 2, lines 70 to 77, Patent Document 3). Paragraphs 0043 to 0046).

Here, for example, if the installation of the inlet opening 3 provided in the mixing vessel 1 of Patent Document 2 is omitted, the steam supplied from the hollow cylindrical portion (cylindrical hollow member 5) and carbon dioxide are omitted. The object of the technique described in Patent Document 2, which is to mix carbon rapidly, cannot be achieved. Therefore, in the technique described in Patent Document 2, the introduction opening is an indispensable component, and it is not possible to find technical significance in assuming a mixing container lacking the structure.

As discussed above, Patent Documents 2 and 3 do not show any technique for solving the problem when the properties of the fluid supplied from only one fluid source change with time.
As described above, no effort has been made to develop a technique for suppressing a sudden change in the properties of a fluid whose properties change over time by slowly mixing the fluid before and after the change in the properties.

The present invention has been made under such a background, and an object of the present invention is to provide a fluid adjusting device capable of mitigating the influence of changes in the properties of a gas or liquid over time.

The fluid adjusting device of the present invention is a fluid adjusting device that adjusts a mixed state of gas or a mixed state of liquid whose calorific value or composition changes with time, and suppresses the calorific value or composition fluctuation amount per unit time. ,
A cylindrical fluid mixing vessel composed of an end face and a side wall surface,
To said fluid mixing vessel, a fluid supply pipe is only one fluid supply source for supplying the gas or fluid is the liquid,
From the base end portion connected to the fluid supply pipe and provided on one end face side of the fluid mixing container, toward the tip portion arranged at a position before reaching the other end face facing the one end face . A plurality of fluid discharge portions, which are provided in the fluid mixing vessel so as to extend along the axial direction of the fluid mixing vessel and are regions in which fluid supply holes are formed, are discrete along the extending direction. elongated tubular fluid supply nozzle Rutotomoni, the tip is blocked disposed,
From the end face side of the front SL other hand, a fluid extraction pipe for extracting the fluid in the fluid mixing vessel,
Among the plurality of fluid discharge portion, and the closest position of the fluid discharge portion in the distal end portion of said fluid supply nozzle, between the extraction position of the fluid into the fluid extraction pipe from the fluid mixing vessel A plurality of baffle plates arranged so as to block a part of the cross section of the fluid mixing vessel in a direction intersecting with the flow of the fluid flowing along the inner peripheral surface of the fluid mixing vessel. Equipped with
When the cross section of the fluid mixing container is viewed, the plurality of baffle plates are of the fluid mixing container from the region where the baffle plate is provided and the arrangement position side of the fluid supply nozzle in the cross section. Along the cross section, the opening region, which is a region not provided with the baffle plate and is formed so as to extend toward the side wall surface side, is alternately arranged along the circumferential direction of the cross section. It is characterized in that it is provided.

The fluid regulator may have the following features.
(A) the plurality of fluid ejecting portion are each with a plurality of fluid supply holes are formed along a circumferential direction of said fluid supply nozzle, from the base end side of the fluid supply nozzle to the front end portion It should be arranged so that the distance between adjacent fluid discharge parts gradually increases.
(B) the provided along the cross section plurality of baffle plates, the plurality of fluid ejecting unit, and the position of closest the fluid ejecting portion on the distal end of said fluid supply nozzle, said Only one stage shall be provided between the fluid mixing container and the fluid extraction position to the fluid extraction pipe.
(C) The end of the baffle plate in contact with the opening region is one of the fluid mixing containers in order to block the fluid flowing along the plate surface of the baffle plate after being blocked by the baffle plate. A weir-shaped protrusion made of a wall-shaped member formed so as to project in the arrangement direction of the end face of the is provided.
In (d) (c), the fluid is a gas, and it is to the gas contains mist, the fluid mixing vessel, said base end of said fluid supply nozzle than the front end portion The axial direction is arranged toward the gravity direction so as to be located above, and the baffle plate is the height of the plate surface from the inner peripheral surface side of the fluid mixing vessel toward the dam-like protrusion side. The position is formed so as to be gradually lowered, and the dam-like protrusion is formed with an opening for discharging the collected liquid by the mist colliding with the baffle plate. A drainage pipe for draining the liquid that has fallen through the opening is connected to the other end surface, which is the bottom of the fluid mixing container, and the fluid discharge pipe is the drainage pipe of the drainage pipe. It shall be provided so as to extract gas from the height position between the connection position and the baffle plate.
(E) said fluid is a fuel gas, a downstream side of said fluid evacuation piping, be an internal combustion engine using the fuel gas and the fuel. At this time, the fuel gas shall be boil-off gas generated in a storage tank for storing liquefied natural gas .
(F) said fluid is a liquid body fuel, downstream of said fluid evacuation piping, be an internal combustion engine to the liquid fuel and fuel. At this time, the liquid fuel includes biodiesel fuel or bioalcohol fuel .

In the present invention, since a fluid such as gas or liquid is supplied in a dispersed manner toward the inside of the fluid mixing container from an elongated tubular fluid supply nozzle in which a plurality of fluid discharge portions are discretely arranged, the fluid is supplied first. Mixing of the later supplied fluid with the resulting fluid gradually progresses. Further, on the downstream side of the fluid discharge portion, a baffle plate is provided in a direction intersecting the flow of the gas flowing along the inner peripheral surface of the fluid mixing container, so that the flow direction of the fluid can be changed to change the flow direction of the fluid. Mixing can proceed and sudden changes in the properties of the fluid extracted from the fluid regulator can be suppressed.

It is a vertical sectional side view of the gas adjustment device which concerns on embodiment. FIG. 3 is a first cross-sectional plan view of the gas adjusting device. 2 is a second cross-sectional plan view of the gas adjusting device. It is a 1st operation diagram of the said gas adjustment apparatus. It is a 2nd operation diagram of the said gas adjustment apparatus. It is an operation diagram of the gas adjustment device which concerns on other embodiment. It is a vertical sectional side view of the gas adjustment device which concerns on still another embodiment. It is a schematic diagram of the LNG receiving facility equipped with a gas adjustment device. It is a schematic diagram of the liquid fuel supply system equipped with the liquid adjustment device. It is a schematic diagram of a straight pipe which concerns on a comparative example. It is 1st explanatory drawing which shows the result of the Example and the comparative example which concerns on the mixing of a gas. It is a 1st explanatory drawing which shows the result of another comparative example which concerns on the mixing of a gas. It is a 2nd explanatory drawing which shows the result of the Example and the comparative example which concerns on the mixing of a gas. It is a 2nd explanatory drawing which shows the result of another comparative example which concerns on the mixing of a gas. It is 1st explanatory drawing which shows the result of the Example which concerns on the mixing of a liquid. It is a 1st explanatory drawing which shows the result of the comparative example which concerns on the mixing of a liquid. It is a 2nd explanatory drawing which shows the result of the Example which concerns on the mixing of a liquid. It is a 2nd explanatory drawing which shows the result of the comparative example which concerns on the mixing of a liquid.

The configuration of the gas adjusting device (fluid adjusting device) 1 according to the embodiment of the present invention will be described by taking as an example the case where the fluid to be mixed is a gas with reference to FIGS. 1 to 3. FIG. 1 is a vertical sectional side view of the gas adjusting device 1, and FIGS. 2 and 3 are cross-sectional planes in which the gas adjusting device 1 is viewed from the positions AA'and BB'shown in FIG. 1, respectively. It is a figure.

In the following description, as an example in which the change in properties over time is maximized, the supply fluid is transferred from the state in which the first gas is supplied to the supply of the second gas having properties different from those of the first gas. The case where is switched instantly will be described.
As a model for switching the gas, the gas adjusting device 1 of this example has a second gas mixing container 11 containing the first gas, which has different properties (for example, the calorific value of the fuel gas) from the first gas. It has a function of adjusting the mixed state of the gas so that the sudden change in the properties of the mixed gas extracted from the gas mixing container 11 is alleviated when the gas of the above is supplied.

As shown in FIGS. 1 to 3, the gas adjusting device 1 has a gas mixing container (fluid mixing container) 11 in which gas is mixed and a gas supply pipe (fluid supply pipe) for supplying a second gas. ) 12, a gas supply nozzle (fluid supply nozzle) 14 for discharging a second gas into the gas mixing container 11, a baffle plate 16 for adjusting the properties of the gas extracted from the gas mixing container 11, and a gas. It is provided with a gas extraction pipe (fluid extraction pipe) 13 for extracting the gas in the mixing container 11.

The gas mixing container 11 of this example is configured as a cylindrical container composed of upper and lower end surfaces and side wall surfaces, and is arranged vertically with its central axis oriented in the direction of gravity (Z-axis direction shown in FIG. 1). Has been done. The cylindrical container used as the gas mixing container 11 has a height in the range of several tens of cm to several tens of meters, and the ratio (L / D) of the height L of the cylinder to the diameter D is in the range of 2 to 10. Can be exemplified.

For example, a gas supply pipe 12 for supplying a plurality of types of gas is connected to an upper end surface (one end surface) of the gas mixing container 11. The gas supply pipe is the only gas supply source (fluid supply source) for supplying gas to the gas mixing container 11. Therefore, the gas mixing container 11 is not connected to another gas supply pipe for supplying gas from another position such as a side wall surface. Further, a gas extraction pipe 13 for extracting gas in the gas mixing container 11 is connected to an end surface (the other end surface) on the bottom side of the gas mixing container 11.

From the connection position of the gas supply pipe 12 to the gas mixing container 11, a cylindrical gas supply nozzle 14 made of an elongated straight pipe extends up and down along the direction of the central axis toward the inside of the gas mixing container 11. It is provided as follows. For example, the diameter of the gas supply nozzle 14 is 1/3 or less of the diameter of the gas mixing container 11, and the length of the gas supply nozzle 14 is about 50 to 90% of the height of the gas mixing container 11. The base end side of the gas supply nozzle 14 communicates with the gas supply pipe 12, and can receive the gas supplied from the gas supply nozzle 14. On the other hand, the end surface of the gas supply nozzle 14 on the tip end side is closed.

On the side peripheral surface of the gas supply nozzle 14, a gas supply hole (fluid supply hole) 151 for supplying the gas flowing into the gas supply nozzle 14 through the gas supply pipe 12 into the gas mixing container 11 is formed. ing. As shown in FIG. 2, the gas supply nozzle 14 is formed with a plurality of gas supply holes 151 along the circumferential direction of the gas supply nozzle 14.
Hereinafter, the above-mentioned region in which a plurality of gas supply holes 151 are formed along the circumferential direction of the gas supply nozzle 14 is referred to as a gas discharge unit (fluid discharge unit) 15.

For example, in the gas supply nozzle 14 of this example, four gas supply holes 151 are arranged at equal intervals along the circumferential direction of the gas supply nozzle 14 in each gas discharge unit 15, and gas is gas from the side peripheral surface of the gas supply nozzle 14. Gas can be discharged in all directions toward the internal space of the mixing container 11.

As shown in FIG. 1, in the gas supply nozzle 14, a plurality of gas discharge portions 15 are discretely arranged (with intervals from each other) along the extending direction of the gas supply nozzle 14. The plurality of gas discharging portion 15, the base end portion of the gas supply nozzle 14 toward the side (the connecting portion between the gas supply pipe 12) to the tip side, the interval between the gas discharge portion 15 adjacent (H _k ) Gradually increases (H _k-1 <H _k (however, k = 2, 3, ..., N)).

In the method for setting the _{interval H k} , for example, the interval H _k may be increased geometrically _{(H k-1-} H _k = a, for example, a is 0.2H _{1 to 5H 1} ), and the like. _{The interval H k} may be increased comparatively (H _k / H _k-1 = r, for example, r is 1.1 to 2.0). Furthermore, it may set the interval H _k based on other concept is a matter of course.

Further, as shown in FIG. 1, in the gas mixing container 11, the gas discharge unit 15 arranged on the most advanced side of the gas supply nozzle 14 and the gas from the inside of the gas mixing container 11 to the gas extraction pipe 13 are charged. Two baffle plates 16 are provided between the extraction position and the extraction position. Each baffle plate 16 has a cross section of the gas mixing container 11 in a direction intersecting the flow of gas flowing along the inner peripheral surface of the gas mixing container 11 (direction along the XY plane shown in FIG. 1). It is provided so as to block a part of.

As shown in the cross-sectional plan view of FIG. 3, each baffle plate 16 has two strings set in parallel with the arrangement area of the gas supply nozzle 14 sandwiched in the circular cross section of the gas mixing container 11. It is provided so as to close the area surrounded by the inner peripheral surface of the gas mixing container 11. Therefore, the region sandwiched between the two strings is an opening region 17 in which the baffle plate is not provided.

In other words, the state of arrangement of the baffle plate 16 and the opening region 17 described above is that the baffle plate 16 is viewed while moving the cross section of the gas mixing container 11 along the circumferential direction with the gas supply nozzle 14 as the center. The provided area and the area without the baffle plate (opening area 17) are alternately arranged.

At the end of each baffle plate 16 corresponding to the above-mentioned chord position, a weir-shaped protrusion 161 is provided so as to project in a direction (upward) to block the flow of gas flowing along the plate surface of the baffle plate 16. It is provided. The height of the weir-shaped protrusion 161 is set to, for example, about several cm to several tens of cm.

Here, in the gas adjusting device 1 of this example, as shown in FIGS. 1, 3 and the like, the tip end portion (lower end portion) of the gas supply nozzle 14 is larger than the gas discharge portion 15 arranged on the tip end portion side. It extends downward and reaches the above-mentioned opening region 17. This is to facilitate the manufacture of the gas discharge portion 15 arranged at the most advanced portion. However, it is not an indispensable requirement to extend the tip of the gas supply nozzle 14 to the position where the baffle plate 16 is arranged, and the gas is supplied at a position near the gas discharge part 15 arranged on the most advanced side as described above. The nozzle 14 may be terminated.

The operation of the gas adjusting device 1 having the configuration described above will be described.
First, the gas mixing container 11 is in a state in which the first gas is contained. Next, when the second gas is supplied from the gas supply pipe 12, the second gas is discharged from the gas supply hole 151 formed in each gas discharge portion 15 of the gas supply nozzle 14 toward the inside of the gas mixing container 11. NS.

In the gas adjusting device 1 of this example, since the plurality of gas discharging portions 15 are discretely arranged along the extending direction of the gas supply nozzle 14 (the axial direction of the gas mixing container 11), the first, first, The region where the mixing of the second gas proceeds is dispersed in the vicinity of each gas discharge unit 15. As a result, the gas is extracted as compared with the case where the second gas is directly supplied into the gas mixing container 11 from the gas supply pipe 12 without providing the gas supply nozzle 14 (Comparative Example 1-1 described later). It is possible to suppress the amount of fluctuation in the properties of the gas extracted from the pipe 13 per unit time.

Here, for example, focusing on the gas discharge unit 15 provided in the kth stage counting from the base end side, in the region, the gas is discharged from the gas supply hole 151 provided in the gas discharge unit 15 in the kth stage. The gas to be mixed and the gas flowing from the upstream side in the gas mixing container 11 (the gas supplied by the gas discharge unit 15 in the first stage to the (k-1) stage) merge.

Therefore, as compared with the base end side of the gas supply nozzle 14, the flow rate of the gas flowing around the gas discharge portion 15 increases toward the tip end side. In this case, if a plurality of gas discharge units 15 are arranged at equal intervals, for example, and no measures are taken, the flow velocity of the gas flowing around the gas discharge unit 15 as it goes toward the tip of the gas supply nozzle 14. Rise. As a result, the gas in the gas mixing container 11 is extracted from the gas extraction pipe 13 without sufficiently proceeding with the mixing with the second gas discharged from the gas supply hole 151 of the gas discharge unit 15, so to speak. It will be in a stairwell. After that, when the second gas discharged into the gas mixing container 11 reaches the gas extraction pipe 13 without sufficiently proceeding with the mixing with the first gas, the concentration of the second gas rapidly increases. Therefore, the amount of property fluctuation per unit time becomes large.

To suppress the occurrence of such blow in the gas conditioning device 1 of the present embodiment, toward the base end side of the gas supply nozzle 14 to the tip side, the interval between the gas discharge portion 15 adjacent (H _k ) Gradually increases, and each gas discharge unit 15 is arranged. As a result, the gas supplied from the gas supply hole 151 (the second gas) and the gas flowing from the upstream side of the gas mixing container 11 (the first gas, the first gas, and the second gas) Sufficient mixing time with the mixed gas) is secured. Then, the gas in a state in which the first gas and the second gas are sufficiently mixed arrives at the gas outlet pipe 13 in the vicinity region of each gas discharge unit 15, so that the unit caused by the above-mentioned atrium It is possible to suppress an increase in the amount of property fluctuation per hour.

Next, the operation of the baffle plate 16 will be described with reference to FIGS. 4 and 5. These figures schematically show the flow of the gas (second gas) discharged from the gas supply hole 151 of the gas discharge unit 15 arranged on the cutting edge side. In FIGS. 4 and 5, the flow of gas discharged from the gas supply hole 151 is indicated by a broken line arrow. Even during the period in which the second gas discharged from the gas supply hole 151 flows on the streamline indicated by the broken line arrow, the mixing with the gas in the gas mixing container 11 proceeds. Therefore, as compared with the base end portion of the broken line arrow (the outlet of the gas supply hole 151), the mixing of the first and second gases has progressed at the tip end portion of the broken line arrow.

As shown in FIGS. 4 and 5, the gas discharged from each gas supply hole 151 flows in the gas mixing container 11 in the radial direction and then at a position near the inner peripheral surface of the gas mixing container 11. And change the flow direction downward.
As shown in FIG. 4, in the region where the baffle plate 16 is provided, the baffle plate 16 is arranged in a direction intersecting the gas flow along the inner peripheral surface of the gas mixing container 11. , The gas flows inward in the radial direction of the gas mixing container 11 along the upper surface of these baffle plates 16. After that, the gas that has reached the weir-shaped protrusion 161 is guided by the weir-shaped protrusion 161 and changes its flow direction upward. As a result, as shown by the broken line arrow in FIG. 4, a vortex of the gas flowing into the gas mixing container 11 is formed, and the mixing with the gas in the gas mixing container 11 further progresses.

On the other hand, as shown in FIG. 5, in the opening region 17 in which the baffle plate 16 is not provided, the gas flow along the inner peripheral surface of the gas mixing container 11 passes through the opening region 17 and the gas extraction pipe. It reaches 13 and is extracted to the outside. The degree of progress of mixing of the second gas flowing along the streamline shown in FIG. 5 and the gas in the gas mixing container 11 is smaller than that in the case of FIG.

As described above, due to the mixture of the gas flows shown in FIGS. 4 and 5, the gas passing through the opening region 17 and reaching the gas extraction pipe 13 and the baffle plate 16 and the weir-shaped protrusion 161 After the flow is blocked to form a vortex, a time difference is formed with the gas reaching the gas extraction pipe 13. As a result, it is possible to suppress a sudden change in properties as compared with the case where the flow of gas discharged from the gas supply hole 151 reaches the gas outlet pipe 13 at the same time.

Further, the gas is mixed by providing only one stage of the baffle plate 16 between the arrangement position of the gas discharge portion 15 on the most advanced portion side of the gas supply nozzle 14 and the position of extracting the gas to the gas extraction pipe 13. While suppressing the increase in pressure loss in the container 11, the gas vortex shown in FIG. 4 can be formed to promote gas mixing.

By the action of the gas adjusting device 1 described above, for example, when the gas B, which is the second gas, is supplied from the gas supply nozzle 14 to the gas mixing container 11 in which the gas A is housed as the first gas, the gas is supplied. The concentration of gas B in the gas extracted from the extraction pipe 13 increases. At this time, the action of the gas supply nozzle 14 and the baffle plate 16 described above suppresses a rapid change in the concentration of the gas extracted from the gas extraction pipe 13, so that the properties of the gas change per unit time. The amount can be kept small. Then, when the supply of the gas A from the gas supply nozzle 14 is continued, the concentration of the gas B in the gas mixing container 11 becomes close to 100% (1 in mole fraction), and the gas extracted from the gas extraction pipe 13 The properties of are stable.
After that, when the gas A is supplied again from the gas supply pipe 12 or another gas C is supplied, the gas B in the gas mixing container 11 corresponds to the first gas and is supplied from the gas supply pipe 12. The supplied gas corresponds to the second gas, and the same mixing operation as in the above example is performed.

As described above, the effect of the gas adjusting device 1 that suppresses the fluctuation amount of the gas property per unit time can be similarly obtained even when the gas property change is smaller than that of the above example.
For example, when a mixed gas (first gas) in which gas A and gas B are mixed at a predetermined ratio is contained in the gas mixing container 11, the first gas is the mixing ratio of gases A and B. Even when a mixed gas (second gas) having a different gas is supplied from the gas supply pipe 12, the properties of the gas extracted from the gas outlet pipe 13 change due to the action of the gas supply nozzle 14 and the baffle plate 16. Becomes more gradual.

This is the same even when the mixing ratio of the gases A and B in the mixed gas supplied from the gas supply pipe 12 changes with the passage of time. That is, the mixing ratio between the mixing ratio of the mixed gas (first gas) in the gas mixing container 11 at a certain point in time and the mixing ratio of the mixed gas (second gas) supplied from the gas supply pipe 12 When there is a significant change in the properties of operating an internal gas-fueled internal combustion engine, by using the gas adjusting device 1 of this example, the change in the properties of the mixed gas supplied to the internal gas engine can be moderately changed. can do.

According to the gas adjusting device 1 according to the present embodiment, the following effects are obtained. Since the gas is dispersed and supplied into the gas mixing container 11 from the elongated tubular gas supply nozzle 14 in which the plurality of gas discharge portions 15 are discretely arranged, the second gas with respect to the first gas is supplied. The mixing of gas gradually progresses. Further, on the downstream side of the state-of-the-art gas discharge unit 15, a baffle plate 16 is provided in a direction intersecting the flow of gas flowing along the inner peripheral surface of the gas mixing container 11. As shown, it is possible to change the flow direction of the gas to promote the mixing of the gas and suppress a sudden change in the properties of the gas extracted from the gas adjusting device 1.

Next, with reference to FIG. 6, an installation example of the baffle plate 16a suitable for treating the gas containing the mist 21 will be described. The gas containing the mist 21 may be either a first gas housed in the gas mixing container 11 or a second gas supplied into the gas mixing container 11 from the gas supply nozzle 14. It may be both.

The baffle plate 16a of this example is formed so that the height position of the plate surface gradually decreases from the inner peripheral surface side of the gas mixing container 11 toward the weir-shaped protrusion 161 side, and has an inclined surface. As a result, the mist 21 that has flowed down in the gas mixing container 11 on the gas flow collides with the baffle plate 16a and is collected to become a liquid film-like liquid 22, and the baffle is directed toward the weir-shaped protrusion 161. It flows on the inclined surface of the plate 16a.

The weir-shaped protrusion 161 is formed with an opening 172 for discharging the liquid 22 to the lower side of the baffle plate 16a. A drainage pipe 18 is connected to the bottom of the gas mixing container 11, and the liquid 22 that has fallen through the opening 172 is discharged to the outside through the drainage pipe 18. On the other hand, the gas outlet pipe 13 is connected at a height position between the connection position of the drainage pipe 18 and the arrangement position of the baffle plate 16a, and the gas separated from the liquid 22 is extracted from the gas mixing container 11. ..

Further, the gas mixing container 11 of the gas adjusting device is not limited to the case where the gas mixing container 11 is arranged vertically so that its axial direction coincides with the gravity direction. FIG. 7 shows an example of a gas adjusting device 1a provided with a gas mixing container 11 arranged horizontally with the axial direction oriented horizontally. In FIG. 7, the components common to the gas adjusting device 1 shown in FIGS. 1 to 6 are designated by the same reference numerals as those used in these figures.

As shown in FIG. 7, when the gas mixing container 11 is arranged horizontally, the direction in which the gas supply nozzle 14 extends is also the horizontal direction. At this time, in order to suppress the occurrence of bending due to its own weight, the gas supply nozzle 14 may be supported by the support column portion 19 provided between the inner peripheral surface of the gas mixing container 11 and the gas mixing container 11 as shown in FIG.

Further, the gas adjusting device 1a of FIG. 7 also shows modified examples of the gas supply pipe 12, the gas supply nozzle 14, and the baffle plate 16 shown in FIGS. 1 to 3.
The gas supply pipe 12 connected to the gas supply nozzle 14 is not limited to the case where the gas supply pipe 12 is configured by one pipe connected to the upper end face of the gas mixing container 11 as in the example shown in FIG. For example, as shown in FIG. 7, the first gas supply pipe 12a for supplying the gas A and the second gas supply pipe 12b for supplying the gas B merge at a position near the end face in the gas mixing container 11. Then, the gas supply nozzle 14 may be connected to the downstream side of these gas supply pipes 12a and 12b. These gas supply pipes 12a and 12b also constitute a single gas supply source (fluid supply source) for supplying gas to the gas mixing container 11 via the gas supply nozzle 14.

Further, in the example of the gas adjusting device 1 described with reference to FIGS. 1 to 3, the arrangement interval ( _Hk ) of the gas discharge unit 15 is from the base end side to the tip end side of the gas supply nozzle 14. By setting the gas to gradually increase, the occurrence of a blow-by phenomenon due to an increase in the flow rate of the gas in the gas mixing container 11 is suppressed.
However, the method for setting the arrangement interval of the gas discharge unit 15 is not limited to this example. For example, FIG. 7 shows an example of a gas supply nozzle 14 in which a plurality of gas discharge portions 15 are _{arranged at equal intervals (H k} = constant (however, k = 1, 2, 3, ..., N)). There is.

For example, if the flow rate of the second gas supplied to the gas supply nozzle 14 is small and the flow velocity of the gas flowing around the gas discharge unit 15 does not increase to the extent that the blow-by phenomenon becomes a problem, the gas discharge unit 15 is used. It may be arranged at intervals. Further, the gas discharge portions 15 may be arranged at equal intervals, and other measures may be taken in order to suppress the occurrence of the blow-by phenomenon. As another measure, the opening diameter of the gas supply hole 151 is gradually reduced from the base end side to the tip end side of the gas supply nozzle 14 to increase the discharge flow rate of the second gas, and the gas mixing container 11 is used. A gas mixing container using a method for promoting mixing with the gas inside or a conical gas mixing container 11 having a larger cross-sectional radius from the base end side to the tip end side of the gas supply nozzle 14. It is possible to exemplify a method of suppressing an increase in the flow velocity due to the merging of the gas flowing in the 11 and the second gas supplied from the gas supply nozzle 14.

Further, FIG. 7 shows an example of the baffle plate 16 in which the installation of the weir-shaped protrusion 161 is omitted. Even when the baffle plate 16 without the dam-like protrusion 161 is provided, the gas flows inward in the radial direction of the gas mixing container 11 along the baffle plate 16 are in the central region of the gas mixing container 11. By merging, the flow direction changes and the formation of vortices occurs, and the mixing with the gas in the gas mixing container 11 can be further promoted.

As described above, the baffle plate 16 having the first and second gas supply pipes 12a and 12b shown in FIG. 7, the equally spaced arrangement of the gas discharge portions 15 and the weir-shaped protrusions 161 is the vertically installed gas shown in FIG. It may be applied to the adjusting device 1. On the contrary, the baffle plate 16 provided with the gas supply pipe 12 shown in FIG. 1, the arrangement interval setting of the gas discharge portion 15, and the weir-shaped protrusion 161 is applied to the horizontal gas adjusting device 1a of FIG. Of course, it is good.

Further, variations of the equipment applicable to the gas adjusting device 1 shown in FIGS. 1 to 6 and the gas adjusting device 1a shown in FIG. 7 will be listed.
The number and arrangement of the gas supply holes 151 formed in each gas discharge unit 15 are not limited to the example shown in FIG. For example, by forming one gas supply hole 151 in each gas discharge unit 15 while changing the formation direction of the gas supply hole 151 on the side surface of the gas supply nozzle 14, each gas discharge unit 15 gas is in a different direction. May be configured to be discharged. In addition, in each gas discharge unit 15, a plurality of rows of gas supply holes 151 in which a plurality of gas supply holes 151 are arranged at equal intervals along the circumferential direction of the gas supply nozzle 14 may be arranged vertically. .. Further, in each gas discharge unit 15, a plurality of gas supply holes 151 may be arranged spirally along the circumferential direction of the gas supply nozzle 14.

Next, regarding the configuration of the gas supply nozzle 14, it is not an essential requirement to configure the gas supply nozzle 14 with a straight pipe. For example, the gas supply nozzle 14 may be configured by using a spiral thin tube extending along the direction of the central axis of the gas mixing container 11.

The planar shape of the opening region 17 formed between the baffle plates 16 is not limited to the example shown in FIG. For example, an opening region 17 extending in the X-axis direction of FIG. 3 may be added to form a cross-shaped opening region 17, and more opening regions 17 may be radially arranged from the center position of the cross section of the gas mixing container 11. (In these cases, the width of the opening region 17 is appropriately adjusted in order to secure the arrangement region of the baffle plate 16).

Further, as in the examples shown in FIGS. 3 and 5, it is not essential that the opening region 17 extends to the inner peripheral surface side of the gas mixing container 11, for example, the central region of the cross section of the gas mixing container 11. A circular opening region 17 may be provided only on the surface. In this case, the gas flowing near the inner peripheral surface passes through the opening region 17 and reaches the gas outlet pipe 13 (FIG. 5), and is blocked by the baffle plate 16 (FIG. 4). Although the action of forming the time difference of the gas reaching the gas extraction pipe 13 is diminished, the effect of promoting the mixing of the gas due to the provision of the baffle plate 16 is still exhibited.

Next, the application examples of the gas adjusting devices 1 and 1a described with reference to FIGS. 1 to 7 will be described with reference to an example of a liquefied natural gas (LNG: Liquefied Natural Gas) receiving facility. For convenience of illustration, FIG. 8 shows an example in which the vertically installed gas adjusting device 1 is provided, but the configuration on the receiving equipment side is the same even when the horizontally installed gas adjusting device 1a is provided. ..
The receiving equipment shown in FIG. 8 includes a gas engine 5 which is an internal combustion engine using BOG (Boil Off Gas) generated in the LNG tank 32 as fuel. The gas adjusting device 1 of this example is provided on the upstream side of the gas engine 5.

Briefly explaining the configuration of the LNG receiving facility, the LNG stored in the LNG tank 32 is sent out from the LNG tank 32 by the LNG pump 33 and the delivery pump 35, vaporized by the LNG vaporizer 36, and has a calorific value. After the adjustment unit 39 adjusts the calorific value of adding the LPG sent out from the LPG tank 37 by the LPG pump 38, the product is shipped to the demand destination 4.

In the LNG tank 32, BOG is generated by the vaporization of LNG. Normally, the BOG is boosted by a BOG compressor 34 provided with a plurality of compression stages 341 to 343, and then delivered to the customer 4 together with the vaporized LNG, or is reliquefied and returned to the LNG tank 32. (FIG. 8 shows an example in which the BOG is paid out to the demand destination 4 together with the vaporized LNG).

On the other hand, the LNG tank 32 receives LNG from the LNG tanker 31 via the unloading arm 311. At this time, the amount of BOG generated in the LNG tank 32 may increase to several times the normal amount. In the receiving equipment of this example, a gas engine 5 using BOG as fuel is provided as a destination for using the surplus BOG, and the gas engine 5 can be driven to generate power by the generator 51.

Here, the gas engine 5 may be restricted in the amount of heat fluctuation per unit time of the fuel gas to be used. On the other hand, when LNG having different properties is accepted, the calorific value of BOG may change significantly.
Therefore, by providing the gas adjusting device 1 of this example on the upstream side of the gas engine 5 as shown in FIG. 8, it is possible to mitigate the fluctuation in the amount of heat per unit time of the BOG supplied to the gas engine 5. In the application example shown in FIG. 8, the BOG contained in the gas adjusting device 1 before the change in the calorific value of the BOG corresponds to the first gas, and the gas adjusting device 1 becomes the gas adjusting device 1 as the change in the calorific value occurs. The supplied BOG corresponds to the second gas.

A pressure control valve for adjusting the pressure in the gas mixing container 11 is provided on the downstream side of the gas adjusting device 1, and the amount of BOG contained in the gas mixing container 11 is increased or decreased by increasing or decreasing the pressure in the gas mixing container 11. You may. When the amount of BOG generated in the LNG tank 32 increases and the upper limit of the amount that can be delivered to the customer 4 or the amount that can be supplied to the BOG to the gas engine 5 is reached, the capacity of the BOG in the gas regulator 1 is temporarily increased. It can also be used as a gas holder to absorb the surplus amount of BOG.

Not only when BOG is used as fuel gas, but also when gas vaporized by the LNG vaporizer 36 or gas received from the outside is used as fuel gas and supplied to the gas engine 5 to generate power, the gas adjustment of this example is also performed. Devices 1, 1a can be applied.
In addition, the gas adjustment of this example is not limited to the gas adjustment devices 1 and 1a for gas engine power generation, but also for stable operation such as gas turbine power generation using LNG of multiple production areas as fuel gas and biomass power generation using biogas as fuel. Devices 1, 1a can be applied.
Furthermore, the gas that can mitigate the change in properties by using the gas adjusting devices 1 and 1a is not limited to the fuel gas. For example, it can be applied to the supply of gas to equipment or processes in which the amount of property fluctuation per unit time is limited, such as the composition change of the raw material gas supplied to the catalytic reaction.

As described above, using FIGS. 1 to 8, the embodiments of the gas adjusting devices 1 and 1a to which the fluid adjusting device of the present invention is applied to the mixing of the gas whose properties change with time, and the gas adjusting devices 1 and 1a. An application example was explained.
However, the fluid capable of alleviating abrupt changes in properties using the fluid adjusting device of the present invention is not limited to gas. For example, the gas adjusting device 1 described with reference to FIGS. 1 to 5 and 7 may be used as a liquid adjusting device for mixing liquids whose properties change with time.

In this case, the fluid adjusting device shown in FIGS. 1 to 5 and 7 is a liquid adjusting device (fluid) that adjusts the mixed state of the liquid whose properties change with time and suppresses the amount of property fluctuation per unit time. Adjustment device) 1, 1a, which is only one for supplying a liquid to a tubular liquid mixing container (fluid mixing container) 11 composed of an end face and a side wall surface and the liquid mixing container 11. A liquid supply pipe (fluid supply pipe) 12 which is a liquid supply source (fluid supply source) and a liquid supply pipe 12 connected to the liquid supply pipe 12 from one end face side of the liquid mixing container 11 in the axial direction of the liquid mixing container 11. A plurality of liquid discharge portions (fluid discharge portions) 15 which are provided in the liquid mixing container 11 so as to extend along the same and are regions in which the liquid supply holes (fluid supply holes) 151 are formed are formed in the extension direction. Liquid drainage for drawing out the liquid in the liquid mixing container 11 from the elongated tubular liquid supply nozzle (fluid supply nozzle) 14 discretely arranged along the above and the other end face side facing the one end face. The location of the outlet pipe (fluid outlet pipe) 13, the liquid discharge portion 15 on the most advanced side of the liquid supply nozzle 14, and the position where the liquid is discharged from the liquid mixing container 11 to the liquid outlet pipe 13. A baffle plate 11 arranged between the liquid mixing containers 11 so as to block a part of the cross section of the liquid mixing container 11 in a direction intersecting with the flow of the liquid flowing along the inner peripheral surface of the liquid mixing container 11. And can be read as having.

FIG. 9 shows an example in which the above-mentioned liquid adjusting devices 1 and 1a are applied to a supply facility that supplies liquid fuel to the diesel engine 5a that drives the generator 51. For convenience of illustration, FIG. 9 shows an example in which the vertical gas adjusting device 1 is provided, but the point that the horizontal gas adjusting device 1a may be provided is the acceptance described with reference to FIG. The same is true for equipment.

The upstream side of the liquid regulator 1 provided in the supply facility of this example branches into two fuel supply lines, and on one side thereof, the biodiesel fuel tank 71 via an on-off valve V1 and a biofuel pump 711. Is provided. The biodiesel fuel tank 71 stores biodiesel fuels such as rapeseed oil, soybean oil, palm oil, coconut oil, corn oil, and olive oil. These biodiesel fuels may be refined or reformed to remove oils and fats and corrosive components and adjust the viscosity, if necessary.

On the other hand, on the other side of the branched fuel supply line, a fossil fuel tank 72 is provided via an on-off valve V2 and a fossil fuel pump 721. The fossil fuel tank 72 stores light oil (Gas Oil), diesel fuel (Diesel Oil), and the like, which are fossil fuels for the diesel engine 5a.

For example, the supply of biodiesel fuel may be unstable compared to various fossil fuels for which the market is well developed. Therefore, the liquid fuel supply facility shown in FIG. 9 normally supplies the biodiesel fuel from the biodiesel fuel tank 71, and when the supply of the biodiesel fuel is interrupted, the fossil fuel from the fossil fuel tank 72 is supplied in a timely manner. It is configured to switch to supply.

In the above-mentioned liquid fuel supply facility, when the liquid fuel supplied to the diesel engine 5a is switched from the biodiesel fuel in the biodiesel fuel tank 71 to the fossil fuel in the fossil fuel tank 72, the biodiesel fuel and the fossil fuel become available. The amount of heat may change significantly between. At this time, by providing the liquid adjusting device 1 of this example on the upstream side of the diesel engine 5a, it is possible to alleviate the fluctuation in the calorific value of the liquid fuel supplied to the diesel engine 5a per unit time.
Further, the same effect can be obtained in the case of switching from the fossil fuel of the fossil fuel tank 72 to the biodiesel fuel of the biodiesel fuel tank 71 after the supply of the biodiesel fuel can be resumed.

In addition, flow control valves are provided on the downstream sides of the biofuel pump 711 and the fossil fuel pump 721, respectively, to supply liquid fuel between the biodiesel fuel in the biodiesel fuel tank 71 and the fossil fuel in the fossil fuel tank 72. Even when the switching is gradually performed, the liquid adjusting device 1 has an effect of easing the change in properties (for example, calorific value fluctuation) with time due to the change in the mixing ratio of the biodiesel fuel and the fossil fuel.

The mitigation of the property change using the liquid adjusting devices 1 and 1a is not limited to the application to the supply device for switching the liquid fuel supplied to the diesel engine 5a between the biodiesel fuel and the fossil fuel. For example, the liquid adjusting device 1 for the purpose of mitigating the change in properties when switching oil types between biodiesel fuels made from different raw materials (the above-mentioned rapeseed oil, soybean oil, palm oil, coconut oil, corn oil, olive oil, etc.) 1. 1a may be installed.

Furthermore, when switching the liquid fuel supplied to the gasoline engine that drives the generator between bioalcohol derived from corn or sugar cane and gasoline, which is a fossil fuel, or when switching between different types of bioalcohol. In addition, the liquid adjusting devices 1 and 1a of this example can be applied to alleviate changes in the properties of the liquid fuel.

(Simulation 1)
As an example in which the change in properties with time is maximized, the change in properties when the second gas is supplied to various spaces containing the first gas was analyzed by CFD (Computational Fluid Dynamics).
A. Simulation conditions (Example 1) With respect to the gas adjusting device (fluid adjusting device) 1 described with reference to FIGS. 1 to 3, the first gas, BOG (calorific value (low calorific value, the same applies hereinafter): 29.8MJ /). When ^{city gas (calorific value: 40.5 MJ / Nm 3} ), which is the second gas, is supplied from the gas supply pipe 12 at 3,287 [Nm ³ / h] with ^{the state in which Nm 3) is accommodated as the initial state.} Changes over time in the city gas concentration (molar fraction), calorific value [MJ / Nm ³ ], and calorific value fluctuation amount [MJ / Nm ³ / min] in the fuel gas extracted from the gas extraction pipe 13 Asked. The gas mixing container 11 has a diameter of 3 [m], a volume of about 65 [m ³ ], a gas supply nozzle 14 using a 150 A (outer diameter 165.2 [mm]) pipe, and a gas supply hole in each gas discharge unit 15. The hole diameter of 151 is φ15 [mm], and the opening width (width in the X direction of FIG. 3) of the opening region 17 formed between the baffle plates 16 is 237 [mm]. The CFD analysis software used was FLUENT® from ANSYS.
(Comparative Example 1-1) The same simulation as in Example 1 was performed using the gas mixing container 11 not provided with the gas supply nozzle 14 and the baffle plate 16. The diameter and volume of the gas mixing container 11 are the same as those in the first embodiment.
(Comparative Example 1-2) As shown in FIG. 10, the fuel gas is switched between the first supply pipe 61 for supplying BOG and the second supply pipe 62 for supplying city gas. For the straight pipe 63, the same simulation as in Example 1 was performed with respect to the fuel gas at the outlet of the straight pipe 63 when the switching of the fuel gas was carried out. The volume of the straight pipe 63 is 0.042 [m ³ ].

B. Simulation Results FIG. 11 shows changes in the concentration of city gas in the fuel gas and changes in calorific value over time according to Example 1 and Comparative Example 1-1, and FIG. 12 shows similar results according to Comparative Example 1-2. The horizontal axis of FIGS. 11 and 12 shows the elapsed time from the start of the supply of city gas, and the vertical axis on the left side shows the concentration of city gas (molar fraction [−]). The vertical axis on the right side indicates the calorific value of the fuel gas at the outlet position (low calorific value [MJ / Nm ³ ]).

Further, FIG. 13 shows changes in the amount of heat fluctuation per unit time according to Example 1 and Comparative Example 1-1, and FIG. 14 shows similar results according to Comparative Example 1-2. The horizontal axis of FIGS. 13 and 14 shows the elapsed time from the start of the supply of city gas, and the vertical axis shows the amount of heat fluctuation [MJ / Nm ³ / min] per unit time.

As shown in FIG. 11, in Example 1 and Comparative Example 1-1, the mole fraction of the city gas in the fuel gas on the outlet side increased to nearly 90% over about 15 minutes, and this change in the mole fraction was observed. Along with this, the calorific value of the fuel gas gradually increased. At this time, when comparing the changes in the mole fraction and the calorific value of the city gas, these values change more slowly in Example 1 than in Comparative Example 1. On the other hand, in Comparative Example 1-2, the fuel gas on the outlet side was switched from BOG to city gas in an extremely short time of less than 0.01 minutes (0.6 seconds) (FIG. 12).

Further, according to the change over time in the amount of heat fluctuation per unit time shown in FIGS. 13 and 14, in Example 1, the amount of heat fluctuation per unit time ^{was suppressed to 1.0 [MJ / Nm 3} / min] or less. We were able to. The gas engine 5 includes a ^{model in which the amount of heat fluctuation is required to be suppressed to 1.0 [MJ / Nm 3} / min] or less, and the gas adjusting device 1 according to the first embodiment satisfies this requirement. On the other hand, in Comparative Example 1-1, this value exceeded the target value. Further, in Comparative Example 1-2, the amount of heat fluctuation per unit time has risen to several thousand times the target value.

(Simulation 2)
A CFD analysis was performed on the effect of the installation of the baffle plate 16 on the amount of heat fluctuation per unit time.
A. Simulation conditions (Comparative Example 2-1) In the gas adjusting device 1 of Example 1, the same simulation as in Example 1 was performed for the case where the baffle plate 16 was not provided, and the maximum value of the calorific value fluctuation amount per unit time was obtained. ..

B. Simulation Results In Example 1 shown by the solid line in FIG. 13, the maximum value of the amount of heat fluctuation per unit time was 0.97 [MJ / Nm ³ / min]. On the other hand, in the case of Comparative Example 2-1 without the baffle plate 16, this value increased to 1.68 [MJ / Nm ³ / min] by about 70% or more. Therefore, it was confirmed that the effect of suppressing the fluctuation of the amount of heat (variation in properties) can be obtained by providing the baffle plate 16.

(Simulation 3)
The same simulations as in Example 1 and Comparative Example 1-2 were performed for switching the liquid fuel.
A. Simulation conditions (Example 3) The fluid adjusting device described with reference to FIGS. 1 to 3 is used as the liquid adjusting device 1, and the initial state is a state in which light oil (calorific value 43.1 MJ / kg), which is a fossil fuel, is contained. In the liquid fuel extracted from the liquid extraction pipe 13 when palm oil (calorific value: 36.8 MJ / kg), which is a biodiesel fuel, is supplied from the liquid supply pipe 12 at 4.1 [m ^{3 / h].} The changes over time in the palm oil concentration (mass fraction) and the amount of calorific value fluctuation [MJ / kg / min] per unit time were obtained by simulation. Here, the supply flow rate of palm oil has the same amount of heat supplied as the city gas in Example 1 (40.5 [MJ / Nm ³ ] × 3,287 [Nm ³ / h] ≈ 133 [GJ / h]). The flow rate was set as follows. The configuration of the liquid adjusting device 1 is the same as that of the gas adjusting device 1 of the first embodiment.
(Comparative Example 3) Palm oil is supplied from the second supply pipe 62 to the straight pipe 63 to which the light oil was supplied from the first supply pipe 61 in FIG. 10 at the same supply flow rate as in the third embodiment. The same simulation as in Comparative Example 1-2 was performed except for the points performed.

B. Simulation Results FIG. 15 shows changes in the concentration of palm oil in the liquid fuel according to Example 3, and FIG. 16 shows similar results according to Comparative Example 3. The horizontal axis of FIGS. 15 and 16 shows the elapsed time from the start of the supply of palm oil, and the vertical axis shows the concentration of palm oil (mass fraction [−]).
Further, FIG. 17 shows the change over time in the amount of heat fluctuation per unit time according to Example 3, and FIG. 18 shows the same result according to Comparative Example 3. The horizontal axis of FIGS. 17 and 18 shows the elapsed time from the start of palm oil supply, and the vertical axis shows the amount of heat fluctuation [MJ / kg / min] per unit time.

According to the results shown in FIG. 15, in Example 3, the mole fraction of palm oil in the liquid fuel on the outlet side increased to 90% or more over about 15 minutes. On the other hand, in Comparative Example 3, the liquid fuel on the outlet side was switched from light oil to palm oil in an extremely short time of less than 0.009 minutes (0.5 seconds) (FIG. 16).

Further, according to the change with time of the amount of heat fluctuation per unit time shown in FIGS. 17 and 18, in Example 3, the amount of heat fluctuation per unit time is suppressed to 1.0 [MJ / kg / min] or less. I was able to. Even in a diesel engine, it may be preferable to suppress the amount of heat fluctuation to 1.0 [MJ / kg / min] or less (preferable value), and the liquid adjusting device 1 according to the third embodiment is suitable for such a diesel engine. Is. On the other hand, in Comparative Example 3, the amount of heat fluctuation per unit time has increased to several thousand times the suitable value.

1, 1a Fluid regulator (gas regulator, liquid regulator)
11 Fluid mixing container (gas mixing container, liquid mixing container)
12 Fluid supply piping (gas supply piping, liquid supply piping)
13 Fluid extraction piping (gas extraction piping, liquid extraction piping)
14 Fluid supply nozzle (gas supply nozzle, liquid supply nozzle)
15 Fluid discharge part (gas discharge part, liquid discharge part)
151 Fluid supply hole (gas supply hole, liquid supply hole)
16, 16a
Baffle plate 161 Weir-shaped protrusion 17 Opening area 172 Opening 18 Drainage pipe 19 Strut

Claims (9)

In a fluid adjusting device that adjusts the mixed state of gas or the mixed state of liquid whose calorific value or composition changes with time, and suppresses the calorific value or composition fluctuation amount per unit time.
A cylindrical fluid mixing vessel composed of an end face and a side wall surface,
To said fluid mixing vessel, a fluid supply pipe is only one fluid supply source for supplying the gas or fluid is the liquid,
From the base end portion connected to the fluid supply pipe and provided on one end face side of the fluid mixing container, toward the tip portion arranged at a position before reaching the other end face facing the one end face . A plurality of fluid discharge portions, which are provided in the fluid mixing vessel so as to extend along the axial direction of the fluid mixing vessel and are regions in which fluid supply holes are formed, are discrete along the extending direction. elongated tubular fluid supply nozzle Rutotomoni, the tip is blocked disposed,
From the end face side of the front SL other hand, a fluid extraction pipe for extracting the fluid in the fluid mixing vessel,
Among the plurality of fluid discharge portion, and the closest position of the fluid discharge portion in the distal end portion of said fluid supply nozzle, between the extraction position of the fluid into the fluid extraction pipe from the fluid mixing vessel A plurality of baffle plates arranged so as to block a part of the cross section of the fluid mixing vessel in a direction intersecting with the flow of the fluid flowing along the inner peripheral surface of the fluid mixing vessel. Equipped with
When the cross section of the fluid mixing container is viewed, the plurality of baffle plates are of the fluid mixing container from the region where the baffle plate is provided and the arrangement position side of the fluid supply nozzle in the cross section. Along the cross section, the opening area, which is a region not provided with the baffle plate and is formed so as to extend toward the side wall surface side, is alternately arranged along the circumferential direction of the cross section. A fluid adjusting device characterized by being provided in the above. Wherein the plurality of fluid ejecting portion are each the along a circumferential direction of the fluid supply nozzle with a plurality of fluid supply holes are formed, toward the tip side from the base end of the fluid supply nozzle, The fluid adjusting device according to claim 1, wherein the fluid adjusting portions are arranged so that the distance between adjacent fluid discharge portions is gradually increased. It said baffle plate of the plurality arranged along the cross section, among the plurality of fluid ejecting unit, and the position of closest the fluid ejecting portion on the distal end of said fluid supply nozzle, the fluid mixing vessel The fluid adjusting device according to claim 1, wherein only one stage is provided between the position where the fluid is discharged from the inside and the position where the fluid is discharged to the fluid extraction pipe. At the end of the baffle plate in contact with the opening region, in order to block the fluid flowing along the plate surface of the baffle plate after being blocked by the baffle plate, the end surface of the one end surface of the fluid mixing container is used. The fluid adjusting device according to claim 1, wherein a weir-shaped protrusion made of a wall-shaped member formed so as to project in the arrangement direction is provided. The fluid is a gas, and the gas contains mist.
The fluid mixing vessel, and that said base end of said fluid supply nozzle so as to be positioned above said front end portion, and the axial direction is disposed toward the gravity direction,
The baffle plate is formed so that the height position of the plate surface gradually decreases from the inner peripheral surface side of the fluid mixing container toward the weir-shaped protrusion side, and the mist is formed on the weir-shaped protrusion. An opening is formed to discharge the collected liquid that collides with the baffle plate downward.
A drainage pipe for draining the liquid that has fallen through the opening is connected to the other end surface, which is the bottom of the fluid mixing container, and the fluid discharge pipe is connected to the drainage pipe. The fluid adjusting device according to claim 4 , wherein the fluid adjusting device is provided so as to extract gas from a height position between the baffle plate and the baffle plate. Wherein the fluid is a fuel gas, a downstream side of the fluid extraction pipe, the fluid controller according to claim 1, characterized in that the internal combustion engine to the fuel gas and the fuel. The fluid adjusting device according to claim 6 , wherein the fuel gas is a boil-off gas generated in a storage tank for storing liquefied natural gas. Wherein the fluid is a liquid body fuel, downstream of the fluid extraction pipe, the fluid controller according to claim 1, characterized in that the internal combustion engine to the liquid fuel and fuel. The fluid adjusting device according to claim 8 , wherein the liquid fuel contains a biodiesel fuel or a bioalcohol fuel.

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