JP5496010B2 - Adhesive material suction recovery system and adhesive material suction recovery device - Google Patents

Description

  The present invention relates to an adhesive suction and recovery system and an adhesive suction and recovery device.

Crude oil may spill into the sea or the sea due to accidents such as a tanker or other oil-carrying accident, a ship sinking accident, an oil field accident, etc.When such crude oil spills into the sea, the sea surface and the sea will be contaminated. And adversely affect the surrounding ecosystem.
Therefore, in order to collect crude oil or the like that has flowed to the sea, for example, Japanese Patent Application Laid-Open No. 10-258276 (Patent Document 1), Japanese Patent Application Laid-Open No. 11-93150 (Patent Document 2), Japanese Patent Application Laid-Open No. 2007-229585 (Patent Document). Various recovery devices have been proposed such as Document 3).

  However, both Patent Document 1 and Patent Document 2 are designed to be sucked with a submersible pump. When a crude oil or oil ball having a stickiness is sucked with such a submersible pump, the crude oil or the oil ball has a sticky property. For this reason, there is a problem that the pump efficiency drops in a short time because the centrifugal pump adheres or bites into the fin, the gear pump gear, the root pump rotor, or the like.

  Further, in Patent Document 3, the inside of a liquid collection tank to be treated is made negative with a vacuum pump, and after the crude oil or slime oil ball is sucked into the liquid collection tank to be treated with this negative pressure, Since the crude oil and oil balls sucked by pressurizing the oil are carried out to the collection container, they can be processed only batchwise and intermittently, and the working efficiency is low and the suctioned liquid to be collected is recovered. There is also a problem that maintenance must be performed regularly and frequently because crude oil, oil balls or the like adhere to and accumulate on the inner peripheral surface of the container.

Japanese Patent Laid-Open No. 10-258276 JP-A-11-93150 Japanese Patent Laid-Open No. 2007-229585

  The present invention has been proposed in view of the above problems, and mainly a sticky material suction and recovery system and a sticky material suction and recovery device capable of continuously recovering crude oil or the like that has flowed into the sea or the sea with a simple structure. It is intended to be able to provide.

In order to achieve the above object, an adhesive suspended matter suction / collection system according to the present invention is provided with an adhesive suspended matter for sucking an adhesive suspended matter floating in the water surface or in water from a suction port by negative pressure and feeding it to a recovery unit. A suction collection system, a suction port opened in or near a layer in which adhesive suspended matter floats, and a suction pump for feeding and feeding a negative pressure to the suction port and feeding it to a collection unit; And a suction passage for feeding from the suction flow jet pump to the recovery portion, wherein the flow passage forms a negative pressure forming pipe portion and a discharge pipe portion on the jet pump side portion, and the suction flow jet pump is the outside air sucked by the negative pressure formed by jetting high pressure of the pressurized fluid in the flow material pressure means, the negative pressure forming pipe portion from the injection port of the admission jets mixed with the sucked outside air To form a negative pressure in the negative pressure forming pipe portion Constitute a gas jet pump, thereby forming said negative pressure generating tube portion is a straight tubular one, substantially equally disposed a plurality of injection ports with respect to the opening area of the upstream side of the negative pressure forming pipe portion , By positioning a position where the plurality of mixed gas jets injected from the injection port spread in the tube of the negative pressure forming tube part on the injection nozzle side, the mixed gas jet flow is injected from the position where the mixed gas jet flow spreads out in the discharge tube. The main feature is that it is configured to prevent adhesion of floating suspended matter on the inner peripheral surface of the discharge pipe on the nozzle side.

In addition, the adhesive suspended matter suction and recovery system according to the present invention is an adhesive suspended matter suction and recovery system for sucking an adhesive suspended matter floating on the surface of water or in water from a suction port by negative pressure and feeding it to a recovery unit. A suction port opened in or near the layer in which the adhesive suspended substance floats, a suction flow jet pump for supplying negative pressure to the suction port and flowing it to the recovery unit, and a suction flow jet with a flow feed path for Nagareoku the recovery unit from the pump, the flow sending passage forms a discharge pipe portion and the negative pressure formed tube portion the jet pump portion, the jet pump feeding the suction flow is a flow body pressure The high-pressure fluid pressurized by the means is sucked in by the negative pressure formed and the mixed air jet mixed with the sucked-out air is injected from the injection port to the negative pressure forming pipe portion and the negative pressure is formed. the admission jet pump creating a negative pressure in the pressure forming tube portions The negative pressure forming pipe portion is formed of a plurality of straight tubular negative pressure forming cylinder members, and each of the plurality of straight tubular negative pressure forming cylinder members is injected with the suction flow jet pump. By arranging the ports concentrically, the area ratio of the negative pressure forming cylinder member to the injection port is reduced, and the jet flow injected from each injection port of the injection nozzle is placed in the pipe of each negative pressure forming cylinder member. by positioning the injection nozzle side a cup to spread position, the adhesive floating from the position where the admission jet stream is widened in the tube full of the negative pressure forming tubular member to the inner circumferential surface of the negative pressure generating tube portion of the injection nozzle side It is also a main feature that it is configured to prevent an object from adhering.

  The sticky suspended matter collecting apparatus according to the present invention is a device for collecting crude oil or the like floating on the sea or in the sea using the above sticky suspended matter suction and recovery system, and the portion excluding the recovery part of the sticky suspended matter suction and recovery system is movable. It is mounted on a pontoon ship, and the collection part is formed in a barge ship that is towed by the trolley or can be navigated independently.

  Moreover, in the adhesion floating substance collection | recovery apparatus concerning this invention, the collection | recovery part is also formed by the specific gravity separation mechanism formed in the barge ship.

According to the adhesive suspended matter suction and recovery system according to the present invention, a suction port opened in or near the layer where the adhesive suspended matter floats, a suction flow jet pump for supplying negative pressure to the suction port, and a suction It is equipped with a feed pipe that feeds the sticky suspended matter sucked into the recovery jet pump to the recovery section, and the suction flow jet pump supplies the fluid pressurizing means and the high-pressure fluid pressurized by the fluid pressurizing means. An injection nozzle having an injection port for injection, a discharge pipe provided on the downstream side of the injection nozzle and connected to the flow pipe on the downstream side, and a suction port for extracting negative pressure between the injection port and the discharge pipe are formed. The discharge pipe has a negative pressure forming portion on the injection nozzle side portion, the negative pressure forming portion is formed by a single discharge pipe, and a plurality of injection ports with respect to the opening area of the discharge pipe of the negative pressure forming portion The spray is injected from the injection port The position where a plurality of jet flows spread to the inside of the discharge pipe is located on the injection nozzle side, and the sticky suspended matter adheres to the inner peripheral surface of the discharge pipe on the side of the injection nozzle from the position where the jet flow spreads within the discharge pipe. It is configured to prevent this.
This has the advantage that sticky suspended matter such as crude oil that has flowed out into the sea or the sea can be deposited and deposited on the negative pressure forming portion and can be continuously sucked and sent with a simple structure.
Further, since the sticky suspended matter can be deposited and deposited on the negative pressure forming portion, there is an advantage that a large amount of the sticky suspended matter can be sucked and collected over a long period of time.

Next, the suction float collection system according to the present invention is used to feed a suction port opened in or near the layer where the adhesive float is floating, and a negative pressure to the suction port to flow to the collection unit. A suction flow jet pump, and a flow passage for feeding from the suction flow jet pump to the recovery portion, and the flow passage forms a negative pressure forming pipe portion and a discharge pipe portion on the jet pump side portion. However, the suction flow jet pump sucks the outside air with a negative pressure formed by injecting the fluid pressurizing means and the high-pressure fluid pressurized by the fluid pressurizing means, and mixes the sucked outside air mixed therein. The air jet flow is configured to be an air-jet jet pump that injects a negative pressure forming pipe portion from an injection port to form a negative pressure in the negative pressure forming pipe portion, and the negative pressure forming pipe portion includes a plurality of straight tubular negative pressures. A plurality of straight tubular negative pressure forming cylinder portions formed with a forming cylinder member In each of these, the injection port of the suction flow jet pump is disposed concentrically, so that the area ratio of the negative pressure forming cylinder member to the injection port is reduced and the injection port is injected from each injection port of the injection nozzle. By positioning the position where the mixed gas jet flow spreads in the tube of each negative pressure forming cylinder member on the injection nozzle side, the mixed gas jet flow is injected from the position where the mixed gas jet flow spreads fully in the pipe of the negative pressure forming cylinder member. When it is configured to prevent adhesion floating substances from adhering to the inner peripheral surface of the negative pressure forming pipe portion on the nozzle side, the area ratio of the negative pressure forming cylinder member to the injection port is reduced, and the mixed gas jet flow Can be positioned on the injection nozzle side so that the negative pressure forming cylinder member extends to the inside of the tube, so that, as described above, sticky floating substances such as crude oil that has flowed out into the sea or the sea are in the negative pressure forming tube. To deposit and deposit Can be stopped, there is an advantage that it is possible to feed suction flow continuously with a simple structure.
Further, since the sticky suspended matter can be deposited and deposited on the negative pressure forming tube, there is an advantage that the suction / recovery function of a large amount of the sticky suspended matter can be continuously maintained for a long time.

  The adhesive floating substance suction and recovery device according to the present invention is mounted on a movable trolley except for the recovery part in the above-mentioned adhesive floating substance suction and recovery system, and the recovery part is towed by the trolley or alone. Because it is designed to be a navigable barge, it is possible to promptly collect sticky floating substances such as crude oil that have been spilled due to an oil field accident at sea, and to prevent environmental pollution as much as possible. There is an advantage that can be.

  In addition, in the sticky suspended matter recovery device, the recovery part formed by the specific gravity separation mechanism formed in the barge ship does not need to provide a special separation device such as a centrifuge, in addition to the above effect, There is an advantage that manufacturing cost and running cost can be reduced.

FIG. 2 is a side view showing an outline of an adhesive suction / collection device using the adhesive suction / recovery system according to the present invention. FIG. 3 is a perspective view of a suction port portion of an adhesive suction / collection device using the adhesive suction / recovery system according to the present invention. FIG. 4 is a longitudinal side view of the suction port portion of the adhesive suction and recovery device using the adhesive suction and recovery system according to the present invention. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. [FIG. 6] is a longitudinal sectional side view showing a modification of the suction port portion of the adhesive suction and recovery system according to the present invention. FIG. 5 is a longitudinal side view showing another modification of the suction port portion of the adhesive suction and recovery system according to the present invention. FIG. 7 is a sectional view taken along line BB in FIG. 6. FIG. 5 is a schematic side view showing another embodiment of the sticky material suction / collection system using the sticky material suction / collection system. FIG. 3 is a longitudinal side view showing an outline of a conventional suction flow jet pump given as a reference example.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a most preferred embodiment of an adhesive material suction and recovery system and an adhesive material suction and recovery device according to the present invention will be described with reference to the drawings.

FIG. 1 is a side view schematically showing an adhesive suction / collection device using the adhesive suction / recovery system according to the present invention. In FIG. 1, reference numeral 1 generally indicates the adhesive suction / recovery device.
A sticky material suction / collection device 1 shown in this example collects a sticky substance (sticky floating substance) 3 such as crude oil floating in a layered manner on the sea surface 2 by a sticky floating substance suction / collection system 4. It comprises a suction / flowing portion 5 for sucking and flowing a portion of the layer in which the object 3 floats, and a collection unit 6 for collecting the adhesive 3 sucked and flowed by the suction / flowing portion 5.

  The suction / flowing part 5 has a collecting tool 7 provided in the vicinity of the adhesive 3 and an adhesive collected by the collecting tool 7 in order to suck the adhesive 3 that is layered and floating on the sea surface 2. A suction pipe 9 for sucking the object 3 from the suction port 8, a suction flow jet pump 10 for supplying a negative pressure for suction to the suction pipe 9, and a fluid supply for supplying high-pressure water to the suction flow jet pump 10. The pressure means 11 and the flow path 12 for feeding the adhesive 3 sucked by the suction flow jet pump 10 to the recovery unit 6 and the collecting tool 7 are held in the vicinity of the adhesive 3 floating on the sea surface 2. And a collector holding means 13.

The flow path 12 is sucked by a negative pressure forming pipe portion 14 formed in one straight tube located on the suction flow jet pump 10 side, and the negative pressure forming pipe portion 14, and is discharged to the discharge pipe portion 15. It comprises an inflow pipe portion 16 that guides the jet stream containing the discharged adhesive 3 to the recovery unit 6.
As shown in FIG. 1 and FIG. 2, the collecting tool 7 for collecting the adhesive 3 floating on the sea surface 2 is attached at the front end portion of the flow path 12 directly below the suction flow jet pump 10. When viewed from the side, it is substantially rectangular and is formed in the shape of a dust collector whose front and upper surface portions are open.
A suction tube 9 of a suction flow jet pump 10 is attached to the rear central portion of the collection tool 7, and a suction port 8 in which a lower end portion on the front side of the suction tube 9 is opened in an inclined shape is provided on the collection tool 7. It is provided in the vicinity of the bottom 7a.

The collector holding means 13 for holding the collector 7 having the suction port 8 in the vicinity of the adhesive 3 floating on the sea surface 2 is a tip of a boom 18 whose base is pivotally supported by a vehicle 17 that can be turned and moved. A hook 19 that can be moved up and down is suspended, and a negative pressure forming pipe portion 14 to which the collecting tool 7 is attached is suspended from the hook 19 via a rope 20. A leveling sensor is attached to the side surface of the sensor, and the collection tool 7 is held at a predetermined height position automatically or manually by a signal from the leveling sensor.
The recovery unit 6 is configured by a specific gravity separation reservoir 40 that stores a jet flow containing the adhesive 3 and calms the flow as shown in FIG. 1, and has been sent to the specific gravity separation reservoir 40. The sticky material 3 having a specific gravity lighter than water, such as crude oil, is separated by specific gravity, and the sticky material 3 is conveyed to a processing facility such as a refinery not shown in the figure by a tank truck 21 equipped with a suction device, and the water 41 is submerged in water. It is discharged to the water source by a pump.

  Further, the fluid pressurizing means 11 includes a water storage tank 44 to which water 23 of a water source 42 such as a reservoir, river water, or seawater that is not mixed with an adhesive such as crude oil is fed by an underwater pump 24, and this water storage An engine-driven plunger pump 25 that sucks and pressurizes water stored in the tank 44, and a pressure water supply pipe 26 that supplies high-pressure fluid pressurized by the plunger pump 25 to the suction flow jet pump 10. And comprising.

As shown in FIG. 3, the suction flow jet pump 10 includes a plurality of injection nozzles 27 that inject the pressure water supplied from the pressure water supply pipe 26 of the fluid pressurizing means 11, and a downstream facing the injection nozzle 27. It consists of one cylindrical negative pressure forming pipe portion 14 attached via a support member 29 that forms an inflow space 28 on the side, and the suction pipe 9 provided on the lower surface side of the support member 29.
In the plurality of injection nozzles 27, the injection ports 31 are arranged so that the jet flow is injected substantially evenly with respect to the opening area facing the injection nozzle 27 portion of the negative pressure forming pipe portion 14 (FIG. 3 and FIG. 3). (See FIG. 4).

Each injection nozzle 27 is formed so that the jet stream becomes the mixed jet stream 30 as described below.
That is, a short bottomed cylindrical injection nozzle mounting member 32 is attached to the side wall portion of the support member 29, the pressure water supply pipe 26 is connected to the bottom portion, and an intermediate portion inside the injection nozzle mounting member 32. In addition, nozzle support plates 33 and 33 are provided on the end surface portion on the support member 29 side, and the nozzle body 34 is supported across the nozzle support plates 33 and 33.

Pressure water communicating with the pressure water supply pipe 26 is provided between the bottom of the injection nozzle mounting member 32 connected to the pressure water supply pipe 26 and an intermediate portion inside the injection nozzle mounting member 32 and the support member 29. A supply chamber 43 is formed (see FIG. 3).
The nozzle body 34 attached to the support member 29 is formed in a substantially cylindrical shape, and the pressure water flow path 35 formed in the center portion thereof communicates with the pressure water supply chamber 43 on the upstream side, and in the middle portion. After being squeezed smoothly to a small diameter, it is expanded, and an intake hole 36 is formed in a boundary portion that is expanded from the small diameter portion.

  The injection nozzle mounting member 32 located between the nozzle support plates 33 and 33 where the intake holes 36 are located has an intake pipe 38 with a metering valve 37 communicating with the space 39 between the nozzle support plates 33 and 33. A negative pressure is formed in the expanded portion by the high-pressure flow injected to the expanded portion from the narrowed portion, and the outside air in the space 39 portion is sucked by this negative pressure, The jet flow of the portion injected into the expanded portion becomes a mixed air flow (mixed air jet flow 30) containing a large amount of gas so as to be injected from the injection port 31 toward the negative pressure forming pipe portion 14. It has become.

Next, the operation of the sticky material suction and recovery apparatus 1 using the sticky matter suction and recovery system 4 configured as described above will be described.
First, as shown in FIG. 1, the movable vehicle 17 of the collecting tool holding means 13 is moved to the vicinity of the adhesive floating on the sea surface 2, and the turning operation of the vehicle 17 and the boom 18 protruding from the vehicle 17 are performed. With the undulation operation, the collecting tool 7 is set so that its bottom surface 7a is located slightly below the boundary surface between the sticky suspended matter 3 and the sea surface 2 through the rope 20.
At this time, it is desirable to incline the bottom surface 7a of the collecting tool 7 so that the suction port 8 side is downward as shown in FIG.

Next, the engine-driven plunger pump 25 of the fluid pressurizing means 11 is driven, and the water 23 in the water storage tank 44 supplied and stored from the water source 42 is sucked and pressurized by the plunger pump 25 to provide a high-pressure fluid. Is supplied to the pressure water supply chamber 43 of the suction flow jet pump 10 through the pressure water supply pipe 26.
When a high-pressure fluid is supplied to the pressure water supply chamber 43, it is supplied from the pressure water supply chamber 43 to each injection nozzle 27 as a high-pressure fluid of the same pressure, and is expanded from the portion of each injection nozzle 27 that is narrowed to a small diameter. It is injected into the part.

In the high-pressure flow injected to the small-diameter portion, a negative pressure is formed in the expanded portion as described above, and the outside air in the space 39 portion is sucked by this negative pressure, and the expanded portion The jet flow of the portion injected into the gas becomes a mixed gas jet flow 30 containing a large amount of gas, and is injected from the plurality of injection ports 31 toward one negative pressure forming pipe portion 14.
Since the mixed air jet 30 and the plurality of injection ports 31 injected toward the negative pressure forming pipe portion 14 are evenly arranged with respect to one large-diameter negative pressure forming pipe portion 14, each injection port As shown in FIG. 3, each of the mixed air jets 30 ejected from 31 spreads, and when entering the negative pressure forming pipe portion 14, it is united, for example, in the pipe portion at the CC section in FIG. It spreads to the full, and the inside of the negative pressure forming tube portion 14 is closed by this expanded portion.

Thus, when the inside of the negative pressure forming pipe portion 14 is closed by the CC portion, a negative pressure is formed from the closed CC portion to a portion on the injection nozzle side.
The process of forming the negative pressure in the negative pressure forming pipe portion 14 will be described in detail. The mixed air jet flow 30 injected from the plurality of injection ports 31 toward the single negative pressure forming pipe portion 14 is innumerable water. The air-jet flow 30 gradually spreads due to the resistance with the air from the stationary or frontal area.
At this time, the first half portion around each water droplet flying in the state of countless water droplets formed in the mixed gas jet flow 30 has a positive pressure, and the second half portion has a negative pressure.

When the positive pressure in the first half part is united and spreads in the negative pressure forming pipe part 14, it is closed at this CC part, and this closed state is maintained and the flow pipe part Since the air in the negative pressure forming pipe part 14 flows toward the side of the pipe 16 so as to push out the soot as well, the opening area of the large diameter negative pressure forming pipe part 14 between the closed C-C part and the injection nozzle 27 A large amount of powerful negative pressure commensurate with the (caliber) is formed.
Further, since the mixed jet stream 30 flowing through the negative pressure forming pipe section 14 and the subsequent flow pipe section 16 has a high flow velocity in the form of water particles, an air layer is formed around the mixed jet stream 30. The air layer acts as an insulator between the mixed gas jet flow 30 and the inner peripheral surface of the negative pressure forming pipe portion 14, and prevents the flow velocity of the mixed gas jet flow 30 from being lowered early.

When the negative pressure formed between the injection nozzles 27 from the closed C-C portion of the negative pressure forming tube portion 14 as described above is supplied to the suction tube 9, it is collected by the collecting tool 7. The pressure-sensitive adhesive 3 is sucked into the inflow space 28 of the support member 29 from the suction port 8 formed on the bottom surface 7a of the collecting tool 7 with this negative pressure.
The adhesive 3 sucked into the inflow space 28 of the support member 29 is sucked into the mixed-air jet flow 30, mixed into the mixed-air jet flow, and sent from the discharge pipe portion 15 in a state of being included in the mixed-air jet flow. It is sent to the specific gravity separation reservoir 40 of the recovery unit 6 through the path 12.

At this time, the adhesive 3 sucked into the inflow space 28 of the support member 29 tends to adhere to the portion of the negative pressure forming tube portion 14 that forms the negative pressure on the injection nozzle 27 side from the CC portion.
However, since the portion is always exposed to a high-pressure, high-speed mixed jet flow 30 at a high pressure, even if the sucked adhesive 3 is deposited on the inner peripheral surface of the support member 29, the adhesive 3 Is stripped off and blown off by the high-speed mixed-air jet stream 30.
As a result, the adhesive 3 does not adhere to and accumulate on the inner peripheral surface of the support member 29, and the adhesive 3 is strengthened with a large amount of negative pressure corresponding to the opening area of the large-diameter negative pressure forming tube portion 14. Can be aspirated and flowed.
Accordingly, as shown in FIG. 9, the present invention does not cause a decrease in the suction flow function due to a decrease in the passage area due to the adhesion and deposition of the sucked adhesive 103.

Here, in order to make the negative pressure strong, if the momentum of the mixed-air jet flow 30 is increased, the CC portion that extends to the full extent in the negative-pressure forming pipe portion 14 is increased accordingly. The spread angle (α) becomes smaller and flies far away.
In particular, when a jet stream is ejected from the ejection port 131 of one ejection nozzle 127 as shown in FIG.

However, in the present invention, by increasing the momentum of the mixed jet stream 30, even if the spread angle (α) of the mixed jet stream 30 injected from each injection port 31 of the plurality of injection nozzles 27 is reduced, Since the injection ports 31 of the injection nozzle 27 are evenly arranged with respect to the opening area of the negative pressure forming pipe portion 14 and the mixed gas jets 30 injected from the injection ports 31 are adjacent to each other, the negative pressure forming pipe The C-C portion that extends throughout the tube of the portion 14 does not extend greatly toward the discharge tube portion 15 side.
Incidentally, when the injection pressure from each injection port 31 of the injection nozzle 27 is constant, the position of the CC portion where the air-fuel mixture flow 30 spreads in the tube of the negative pressure forming tube portion 14 is the amount from the suction tube 9. When the load is high, it moves to the injection nozzle 27 side when the load is low, and automatically changes to the discharge pipe portion 15 side when the load is low. To do.

As described above, when the sticky product 3 sent from the flow path 12 to the specific gravity separation reservoir 40 in the mixed jet flow is crude oil containing a volatile component having a low specific gravity, In this specific gravity separation reservoir 40, the specific gravity is separated into layers in the vertical direction as shown in FIG.
Then, the sticky substance 3 such as crude oil separated into the upper layer is transported to a processing facility such as a refinery or an incineration plant (not shown) by a tank truck 21 equipped with a suction device.
On the other hand, the water 41 in the mixed jet flow separated into the lower layer is returned to the water source 42 by the submersible pump 22.
The water 41 separated into the lower layer by the specific gravity separation reservoir 40 can be recycled to the water storage tank 44 for reuse.

FIG. 5 shows a modified example of the spray nozzle 27 in the adhesive floating substance suction and recovery system 4. The nozzle body 34 of the spray nozzle 27 in the above embodiment has a portion 34a in which the flow path 35 is narrowed to a small diameter and the flow path. 35 is divided into an expanded injection port 31 side portion 34b, and other configurations and operations are substantially the same as those in the above-described embodiment, and therefore, details thereof are omitted.
In such a case, the diameter of the portion 34a narrowed down to the small diameter and the material, the diameter and length of the expanded injection port 31 side portion 34b, the material, etc. can be freely adjusted according to the pressure from the pressure water supply pipe 26, etc. There are advantages that can be combined with each other, and can be changed, repaired and replaced.

6 and 7 show still another modification of the injection nozzle 27. In this example, the portion corresponding to the negative pressure forming pipe portion provided on the downstream side of the injection port of the nozzle body 34 formed integrally. The holder plate 45 is fixed with a gap therebetween, and a plurality of negative pressure forming cylinder members 46 are supported concentrically with the respective injection ports 31 over both the holder plates 45 and 45, thereby forming a negative pressure forming pipe portion. 14 is configured.
When the negative pressure forming tube portion 14 is configured by supporting a plurality of negative pressure forming cylinder members 46 concentrically with each injection port 31 as in this example, the negative pressure forming tube portion 14 is configured to form a negative pressure. The area ratio of the cylindrical member 46 can be reduced, and the position of the CC portion where the mixed air jet flow injected from each injection port 31 to the negative pressure forming cylindrical member 46 spreads throughout the pipe of each negative pressure forming cylindrical member 46. Is positioned on the injection nozzle side 27.

The sticky material suction and recovery apparatus 1 using the sticky material suction and recovery system 4 according to this embodiment is for sucking and recovering a sticky material 3 such as crude oil floating on the sea away from the land. As shown in FIG. 4, a base ship 47 and a barge ship 48 towed by the base ship 47 are provided.
Other than the recovery unit 6 of the sticky material suction recovery system 4 in the first embodiment is mounted on the trolley 47, and the water storage tank 44 mounted on the trolley 47 uses seawater as a water source 42 to supply a submersible pump for water supply. Water is supplied at 24.
On the other hand, the barge 48 uses its hold 49 as a specific gravity separation reservoir 40, and the lower-layer seawater separated by specific gravity here is discharged to the sea by the submersible pump 22, and the sticky material 3 such as crude oil in the hold 49 becomes a predetermined amount. Then, it is separated from the carrier 47, towed by a tugboat or the like, and transported to a land processing facility (not shown) for processing.

As can be seen from the above, in order to increase the suction recovery efficiency, a plurality of barges 48 are towed to a single carrier 47 so that the adhesive recovery system 4 on the side of the carrier 47 is continuously operated to perform suction. Recovery efficiency can be greatly improved.
Of course, the barge ship 48 may not be towed by the tugboat but may be provided with a propulsion device and can be navigated by itself.
In this embodiment, there is an advantage that it is possible to cope with a short time when an oil field accident, a marine accident or the like occurs on the sea away from the land, and the sticky material such as the spilled crude oil is collected.

In each of the above embodiments, when collecting the sticky material 3 such as crude oil floating on the water surface, the collecting tool 7 of the sticky material collecting system 4 is positioned below the sticky material 3 and collected. Needless to say, the adhesive 3 may be sucked from above, without being limited to the above.
In each of the above-described embodiments, the case where the sticky material 3 such as crude oil floating on the water surface is collected is described. can do.

In other words, crude oil spilled on the sea contains volatile components with a low specific gravity. When this volatile component evaporates, the specific gravity of the crude oil becomes heavy, and the sticky material 3 such as crude oil floating on the sea becomes slime and floats in the sea. To come.
Accordingly, when the sticky substance 3 such as crude oil floating in the sea is sucked and recovered, for example, the one that can move freely as in Example 2 is floated in the slime in the sea. The position of the adhesive 3 was confirmed by visual recognition, the position of the adhesive 3 was detected by a reflected wave such as sonar, moved to the confirmed or detected position, and the suction port 8 was made to face the adhesive 3 Thereafter, it can be easily sucked and collected by the above-described work procedure.

  By the way, as a means for confirming the position of the sticky substance 3 that is floating in the form of slime or solid in the sea, the wavelength of the ultraviolet region as in the search method using a black light or the marine pollution monitoring system: There is also a method of irradiating a pulsed laser wave having a specific frequency such as 355 nm to excite the adhesive 3 to emit light, and capturing the emitted light with a CCD camera to detect its distribution position.

  Furthermore, since the specific gravity of the adhesive 3 that is in the slime or solidified and floating in the sea has substantially the same specific gravity as seawater, it is difficult to separate the specific gravity separation of the recovery unit 6 as described above. In such a case, when the solidified adhesive 3 and slime are solidified with a solid agent, they can be separated by a filter device (not shown), and thus the recovery unit 6 is configured by a filter device. be able to.

  Moreover, when the high pressure water supplied to the injection nozzle 27 is made into fresh water having a specific gravity lighter than seawater, the adhesive 3 becomes relatively heavy, and the adhesive 3 settles and settles into a layer. Can be separated.

DESCRIPTION OF SYMBOLS 1 ... Adhesive substance suction collection device 2 ... Sea surface 3 ... Adhesive substance (adhesive floating substance)
DESCRIPTION OF SYMBOLS 4 ... Adhesive substance suction collection system 5 ... Suction / flow part 6 ... Collection part 7 ... Collection tool 7a ... Bottom face of collection tool 8 ... Suction port 9 ... Suction tube DESCRIPTION OF SYMBOLS 10 ... Jet pump for suction flow 11 ... Fluid pressurizing means 12 ... Flow path 13 ... Collecting tool holding means 14 ... Negative pressure formation pipe part 15 ... Discharge pipe part 16 ... Flow pipe part 17 ... Vehicle 18 ... Boom 19 ... Hook 20 ... Rope 21 ... Tank truck 22 ... Submersible pump 23 ... Water source 24 ... Water supply Water submersible pump 25 ... plunger pump 26 ... pressure water supply pipe 27 ... injection nozzle 28 ... inflow space 29 ... support member 30 ... mixed jet flow 31 ... injection port 32 ... Injection nozzle mounting member 33 ... Nozzle support plate 34 ... Nozzle Main body 34a: Portion 35 of nozzle main body 34 narrowed to small diameter 34b ... Port 31 side portion of nozzle main body 34 35 ... Channel 36 ... Intake hole 37 ... Metering Valve 38 ... Intake pipe 39 ... Space 40 ... Specific gravity separation reservoir 41 ... Water 42 ... Water source 43 ... Pressure water supply chamber 44 ... Water storage tank 45 ... Holder plate 46 ... Cylinder member for forming negative pressure 47 ... Boat 48 ... Barge ship 49 ... Hunakura

Claims (4)

An adhesive suspended matter suction / collection system for sucking an adhesive suspended matter floating on the surface of water or in water from a suction port by negative pressure and sending it to a recovery unit, which is opened in or near the layer where the adhesive suspended matter floats A suction port, a suction flow jet pump for supplying negative pressure to the suction port and flowing to the recovery unit, and a flow path for flowing from the suction flow jet pump to the recovery unit, forming the flow sending passage forms a discharge pipe portion and the negative pressure formed tube portion the jet pump portion, the jet pump feeding the suction flow is to inject a high pressure of the pressurized fluid in the flow material pressure means A mixed-air jet pump that sucks outside air at a negative pressure and injects a mixed-jet flow mixed with the sucked outside air into a negative pressure forming pipe portion from an injection port to form a negative pressure in the negative pressure forming pipe portion. configure, the negative pressure forming tube portions form a straight pipe of one Both the negative pressure generating tube portion with respect to the opening area of the upstream side are disposed substantially equally a plurality of injection openings, the tube filled multiple admission jets negative pressure generating tube portion which is ejected from the ejection nozzle By placing the position spreading on the injection nozzle side, the adhering suspended matter adheres to the inner peripheral surface of the discharge pipe on the injection nozzle side from the position where the mixed gas jet flow spreads in the pipe of the negative pressure forming pipe part. A system for sucking and collecting a sticky suspended matter, characterized by An adhesive suspended matter suction / collection system for sucking an adhesive suspended matter floating on the surface of the water or in the water from the suction port by negative pressure and sending it to the recovery unit, which is opened in or near the layer where the adhesive suspended matter floats A suction port, a suction flow jet pump for supplying negative pressure to the suction port and flowing to the recovery unit, and a flow path for flowing from the suction flow jet pump to the recovery unit, forming the flow sending passage forms a discharge pipe portion and the negative pressure formed tube portion the jet pump portion, the jet pump feeding the suction flow is to inject a high pressure of the pressurized fluid in the flow material pressure means A mixed-air jet pump that sucks outside air at a negative pressure and injects a mixed-jet flow mixed with the sucked outside air into a negative pressure forming pipe portion from an injection port to form a negative pressure in the negative pressure forming pipe portion. configure, the negative pressure forming pipe portion negative pressure formation of a plurality of straight tube The tube member is formed with a cylindrical member, and the suction port of the suction flow jet pump is concentrically disposed in each of the plurality of straight tubular negative pressure forming tube members, thereby forming the negative pressure with respect to the spray port. by positioning the position of the jet stream injected from the injection port of the injection nozzle by reducing the area ratio of the cylindrical member to spread full tube of the negative pressure forming tubular member to the injection nozzle side, the admission jet stream Adhesive floating is configured to prevent adhesion floating substances from adhering to the inner peripheral surface of the negative pressure forming pipe portion on the injection nozzle side from the position where the negative pressure forming cylindrical member spreads out in the pipe. Object suction collection system.   3. A barge in which a portion excluding the recovery part of the sticky suspended matter suction recovery system according to claim 1 or 2 is mounted on a movable trolley, and the recovery part is towed by the trolley or can be navigated independently. A sticky suspended matter collecting apparatus provided on a ship.   The adhesive floating substance recovery device according to claim 3, wherein the recovery part is formed by a specific gravity separation mechanism formed in a barge ship.

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