JP5489428B2 - Drain separator and cooling / dehumidifying unit - Google Patents

Description

  The present invention relates to a horizontal drain separator that cools and dehumidifies a gas, and a cooling / dehumidifying unit equipped with the drain separator.

Conventionally, drain separators that cool and dehumidify various gases such as air and natural gas are known. For example, when compressed gas supplied by a compressor is cooled and dehumidified and supplied to the next process, etc. It is used for. More specifically, such a drain separator is a horizontally-placed cylindrical casing whose inside is a cooling chamber, an intake duct opened to one end of the casing upper part, an exhaust duct opened to the other end of the casing upper part, A horizontal gas cooler that is disposed in the cooling chamber and cools the gas flowing in from the intake duct, and a mist separator that dehumidifies the gas cooled by the gas cooler and sends it to the exhaust duct (see, for example, Patent Document 1). . In such a horizontal drain separator, in the cooling chamber, the gas supplied from the intake duct and flowing downward from the upper end of one end is cooled by the gas cooler in the process of flowing from the one end to the other end. The cooled gas is dehumidified by passing through the mist separator, and the liquid separated by dehumidification flows downward, while the dehumidified gas is sent to the upper exhaust duct and supplied to the next process. Will be.
JP-A-9-177567

  However, in the horizontal drain separator as in Patent Document 1, since both the intake duct and the exhaust duct are open at the upper part, it is necessary to secure a space for piping the duct upward in the whole, and the installation space is reduced. There was a problem that would increase. In addition, the liquid component separated from the gas by the mist separator will flow downward as opposed to the gas flowing upward, thereby reducing the area in which the gas flows in the mist separator, The dehumidification efficiency may be reduced by increasing the flow rate. In order to perform dehumidification effectively, it is necessary to increase the installation area of the mist separator, but in this case, the entire apparatus becomes larger and the installation space becomes larger, or the installation of the gas cooler in the cooling chamber There was a problem that the range could be reduced and cooling could not be performed effectively.

  The present invention has been made in view of the above-described circumstances, and provides a drain separator and a cooling / dehumidifying unit capable of effectively cooling and dehumidifying while minimizing facility height and installation space. To do.

In order to solve the above problems, the present invention proposes the following means.
The present invention is a horizontal-type cylindrical, the interior and casing and the cooling chamber, open on one side portion below a one side portion of the horizontal direction perpendicular to the axial direction of the casing on the outer peripheral surface of the casing And an intake duct extending in the horizontal direction for supplying gas into the cooling chamber, and the other side portion of the outer peripheral surface of the casing that is a portion on the other side opposite to the one side in the horizontal direction perpendicular to the axial direction of the casing. An exhaust duct extending vertically along the vertical direction for discharging gas in the cooling chamber upward, and a flow path from the intake duct to the exhaust duct in the cooling chamber, and flows from the intake duct and Ruga Sukura to cool the gas, in the flow path of the cooling chamber is provided between the exhaust duct and the gas cooler, and a mist separator for performing removal of the gas humidity, the gas Each over La and the mist separator, distribution to the cooling chamber inlet flow face and the outlet face of the gas in the inclined obliquely to so that with respect to the horizontal plane so as to intersect the gas flowing along said flow path It is characterized by being installed.

According to this configuration, the upper piping space can be minimized by opening one intake duct below one side and opening the other exhaust duct above the other side. And the flow path of the gas in the cooling chamber that flows in from the intake duct along the horizontal direction and flows out to the exhaust duct along the vertical direction is from the lower side of one side of the casing depending on the positional relationship between the intake duct and the exhaust duct. It will incline to the other side side upper side. Here, since each of the gas cooler and the mist separator is disposed so that the inflow surface and the outflow surface are inclined with respect to the horizontal plane, the gas is efficiently circulated along the distribution path to perform cooling and dehumidification. And therefore the capacity of the cooling chamber can be minimized. Furthermore, in the mist separator, since the inflow surface and the outflow surface are arranged so as to intersect with each other in an inclined manner with respect to the horizontal plane , the separated liquid component is separated from the gas flowing along the inclined distribution path. It will be discharged | emitted along an inflow surface so that it may cross | intersect. For this reason, gas can be distribute | circulated without being obstructed by the separated liquid component, and dehumidification of gas can be performed effectively.

Also, in the drain separator described above, the gas cooler has one end, together with being fixed to the one side portion of said casing and the other end is fixed to the other side portion below the casing, the The mist separator has one end fixed above the one side of the casing and the other end fixed to the other side of the casing, and the gas cooler and the mist separator flow into the mist separator. It is preferable that the inclination angle of the surface and the outflow surface with respect to the horizontal plane is 20 to 50 degrees.

According to this configuration, gas cooler is fixed to one side portion of the casing at one end, that is fixed to the other side portion below the casing at the other end portion, in one side portion below the casing, the intake The opening of the duct can be ensured to the maximum extent within the range below the gas cooler. For this reason, while being able to ensure the maximum flow volume of the gas supplied from an intake duct, the supplied gas can be efficiently distribute | circulated from an inflow surface to a gas cooler. In addition, the mist separator is fixed to one side side upper side of the casing at one end portion, and the other end portion is fixed to the other side portion side of the casing, and the inflow and outflow surfaces of the gas cooler and the mist separator are in a horizontal plane. When the inclination angle is 20 to 50 degrees, it can be arranged so as not to interfere with the gas cooler, and the exhaust duct opening is maximized in the range above the mist separator above the other side of the casing. Can be secured. For this reason, the gas dehumidified by the mist separator and flowing out from the outflow surface can be efficiently distributed to the exhaust duct.

The cooling / dehumidifying unit of the present invention is characterized by including the drain separator described above.
According to this configuration, it is possible to efficiently cool and dehumidify the gas while reducing the size of the entire unit.

In the drain separator of the present invention, the gas cooler and the mist separator are disposed as inclined as described above, so that cooling and dehumidification can be performed effectively while minimizing the installation space.
In the cooling / dehumidifying unit of the present invention, the drain separator can efficiently cool and dehumidify the gas while reducing the size of the entire unit.

  An embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, the drain separator 1 of this embodiment is a horizontal type, and is used, for example, for cooling compressed air discharged from a compressor, dehumidifying it, and supplying it to the next process. A substantially horizontal cylindrical casing 3 having a cooling chamber 2 inside, an intake duct 4 for supplying the gas G into the cooling chamber 2, an exhaust duct 5 for discharging the gas G from the cooling chamber 2, and a cooling chamber 2 A horizontal gas cooler 6 and a mist separator 7 are provided. The intake duct 4 is attached along the horizontal direction X below the one side 3 a side of the casing 3 and opens into the cooling chamber 2. The exhaust duct 5 is attached along the vertical direction Y above the other side 3 b side opposite to the one side 3 a of the casing 3 and opens into the cooling chamber 2. The flow path S in the cooling chamber 2 of the gas G supplied from the intake duct 4 and discharged to the exhaust duct 5 due to the positional relationship between the intake duct 4 and the exhaust duct 5 is from the lower side of the one side 3a to the other side 3b. It is set to incline to the upper side.

The gas cooler 6 is provided on the flow path S in the cooling chamber 2 and cools the gas G flowing therethrough. Although not shown, such a gas cooler 6 extends in the axial direction of the casing 3 (the depth direction on the paper surface), and is fixed to a large number of cooling pipes through which a coolant flows and an inner surface of the casing 3. And a baffle plate for supporting the cooling pipe.
The gas cooler 6 is fixed to the inner surface of the casing 3 at a position where one end 6a is substantially in the center in the vertical direction Y on the one side 3a side and the other end 6b is located on the lower side on the other side 3b. Are fixed so that the inflow surface 6c into which the gas G supplied from the intake duct 4 flows and the outflow surface 6d to flow out are inclined with respect to the horizontal plane. Further, the mist separator 7 has a pair of substantially U-shaped support members 8 that have one end portion 7a fixed to the upper side on the one side portion 3a side and the other end portion 7b on the other side on the inner surface of the casing 3. The inflow surface 7c into which the gas G cooled by the gas cooler 6 flows in and the outflow surface 7d from which the gas G cooled by the gas cooler 6 flows are inclined with respect to the horizontal plane and are substantially parallel to the gas cooler 6 by being fixed at the substantially center in the vertical direction on the part 3b side. It is arranged to become. Here, the inclination angles θ6 and θ7 of the inflow surfaces 6c and 7c and the outflow surfaces 6d and 7d of the gas cooler 6 and the mist separator 7 with respect to the horizontal plane are preferably 20 degrees to 50 degrees, particularly about 30 degrees. More preferably.

  Next, the operation of the drain separator 1 of this embodiment will be described. As shown in FIG. 1, the gas G supplied into the cooling chamber 2 from the intake duct 4 flows into the gas cooler 6 from the inflow surface 6 c along the flow path S, is cooled, and flows out from the outflow surface 6 d. The gas G cooled by the gas cooler 6 becomes supersaturated according to temperature conditions, atmospheric pressure conditions, etc., flows into the downstream mist separator 7 from the inflow surface 7c, is dehumidified, and flows out from the outflow surface 7d. The dehumidified gas G is exhausted by the exhaust duct 5.

Here, each of the gas cooler 6 and the mist separator 7 is disposed such that the inflow surfaces 6c and 7c and the outflow surfaces 6d and 7d are inclined with respect to the horizontal plane. Cooling and dehumidification can be performed by distributing efficiently. For this reason, the gas cooler 6 and the mist separator 7 can be minimized while ensuring the necessary capacity, and a distribution space from the intake duct 4 to the gas cooler 6 and from the mist separator 7 to the exhaust duct 5 is introduced. The size of the cooling chamber 2 can be minimized without providing a path or the like, and the capacity of the cooling chamber 2 can be minimized. Moreover, in the drain separator 1 of this embodiment, the exhaust duct 5 is opened above the other side 3b while the intake duct 4 is opened below the one side 3a, thereby minimizing the piping space above the apparatus. be able to. As described above, in the drain separator 1 of the present embodiment, the cooling and dehumidification can be effectively performed depending on the installation positions of the intake duct 4, the exhaust duct 5, the gas cooler 6, and the mist separator 7. Space can be saved.

In particular, in the present embodiment, the gas cooler 6 is fixed at the center of the vertical direction Y on the one side 3a side of the casing 3 at one end 6a , and fixed to the lower side on the other side 3b side of the casing 3 at the other end 6b. The inclination angle θ6 is preferably in the range of 20 degrees to 50 degrees. For this reason, the opening of the intake duct 4 can be ensured to the maximum at the lower side of the gas cooler 6 below the one side 3 a side of the casing 3. Thereby, while being able to ensure the maximum flow volume of the gas G supplied from the intake duct 4, the supplied gas G can be efficiently distribute | circulated to the gas cooler 6 from the inflow surface 6a. Further, the mist separator 7 is fixed to the upper side of the one side portion 3a side of the casing 3 at one end portion 7a , and is fixed to the approximate center in the vertical direction Y on the other side portion 3b side of the casing 3 at the other end portion 7b. Can be arranged so as not to interfere with the gas cooler 6 because the inclination angle θ7 is in the range of 20 degrees to 50 degrees, and the opening of the exhaust duct 5 is mist above the other side 3b side of the casing 3. The maximum amount can be secured in the range above the separator 7. For this reason, the gas G dehumidified by the mist separator 7 and flowing out from the outflow surface 7 d can be efficiently circulated through the exhaust duct 5. Furthermore, the mist separator 7, that inflow surfaces 7c and flow out surface 7d is disposed to be inclined, the liquid fraction was separated from the gas G R is the gas flows along the inclined flow path S G Will be discharged along the inflow surface 7c so as to intersect the. For this reason, the gas G can be circulated without being obstructed by the separated liquid component R, and the gas G can be dehumidified effectively.

  FIG. 2 shows an example of a cooling / dehumidifying unit equipped with the drain separator 1 of the present embodiment. As shown in FIG. 2, the unit 10 is a device that compresses, cools, and dehumidifies and supplies gas in, for example, a chemical plant, and includes a support frame 11 and a plurality of compressors 12 for compressing the gas G. And a steam turbine 13 that is a power source of the compressor 12 and a plurality of drain separators 1 that cool and dehumidify the compressed gas G discharged from each compressor 12. The support frame 11 includes an upper frame 11a that supports the steam turbine 13 and the plurality of compressors 12, and a lower frame 11b that supports the drain separators 1 below the upper frame 11a. In the present embodiment, the compressor 12 includes, for example, two first compressors 12A and two second compressors 12B, and is connected in series by the steam turbine 13 and the rotary shaft 14 on the upper frame 11a. Yes. Further, in the present embodiment, the drain separator 1 cools and dehumidifies the gas G supplied from the first compressor 12A, and supplies the second drain 12A to the second drain 12B. The gas G supplied from the machine 12 </ b> B is provided with two corresponding to the compressor 12 and the second drain separator 1 </ b> B that cools and dehumidifies the gas G and supplies it to the external equipment.

Then, in the unit 10, by driving the steam turbine 13, first, the gas G is compressed by the first compressor 12A, and the compressed gas G is sent to the corresponding first drain separator 1A. Cooled and dehumidified. Cooled and dehumidified gas G is transmitted to the second compressor 12B, and compressed in the further. The gas G compressed by the second compressor 12B is sent to the corresponding second drain separator 1B, cooled and dehumidified by the second drain separator 1B, and supplied to the external equipment. . Here, in this embodiment, since the drain separator 1 is mounted in the unit 10, a curved pipe is provided to connect the intake duct 4 and the exhaust duct 5 of each drain separator 1 to each compressor 12. The need to do so can be kept to a minimum. That is, it is possible to minimize the need to secure a space for arranging the bent pipes, and in combination with the effect that the drain separator 1 itself can be downsized, the entire unit 10 can be downsized. As a result, the cost can be reduced and the transportability of the entire unit can be improved.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

It is sectional drawing which shows the outline | summary of the drain separator of embodiment of this invention. It is a side view which shows an example of the unit carrying the drain separator of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain separator 2 Cooling chamber 3 Casing 4 Intake duct 5 Exhaust duct 6 Gas cooler 7 Mist separator 10 Unit G Gas

Claims (3)

In the lateral type cylindrical, and a casing which the inner and the cooling chamber,
An intake duct along the horizontal direction that opens to the lower side of one side that is a portion of one side in the horizontal direction orthogonal to the axial direction of the casing on the outer peripheral surface of the casing and supplies gas into the cooling chamber;
A vertical direction in which the gas in the cooling chamber is discharged upward by opening upward on the other side, which is a portion on the other side opposite to the one side in the horizontal direction perpendicular to the axial direction of the casing on the outer peripheral surface of the casing. An exhaust duct along
Provided from the intake duct of the cooling chamber the flow path of the to the exhaust duct, and Ruga Sukura to cool the gas flowing from the intake duct,
A mist separator that is provided between the gas cooler and the exhaust duct in the flow path in the cooling chamber and dehumidifies the gas;
Each of the gas cooler and the mist separator, distribution to the cooling chamber inlet flow face and the outlet face of the gas in the inclined obliquely to so that with respect to the horizontal plane so as to intersect the gas flowing along said flow path A drain separator characterized by being provided. The drain separator according to claim 1, wherein
The gas cooler has one end, together with being fixed to the one side portion of said casing and the other end is fixed to the other side portion below the casing,
The mist separator has one end fixed to the upper side of the casing and the other end fixed to the other side of the casing.
The drain separator according to claim 1, wherein an inclination angle of an inflow surface and an outflow surface of the gas cooler and the mist separator with respect to a horizontal plane is 20 degrees to 50 degrees.   A cooling / dehumidifying unit comprising the drain separator according to claim 1.

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