CN214488275U - Gas-liquid separator for in-situ remediation of polluted soil and underground water - Google Patents
Gas-liquid separator for in-situ remediation of polluted soil and underground water Download PDFInfo
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- CN214488275U CN214488275U CN202120388643.3U CN202120388643U CN214488275U CN 214488275 U CN214488275 U CN 214488275U CN 202120388643 U CN202120388643 U CN 202120388643U CN 214488275 U CN214488275 U CN 214488275U
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Abstract
The utility model discloses a gas-liquid separator for in-situ remediation of polluted soil and underground water, which comprises a box body, and a fluid inlet, a water outlet, an air outlet, a demister, a liquid level meter interface, an oil outlet, a clean discharge port, an upper baffle, a lower baffle and a support piece which are arranged on the box body; the box body is a cuboid with a hollow interior; the fluid inlet is arranged at the upper part of the end face of the front end of the box body, the water outlet is arranged at the lower part of the end face of the same end, and the oil outlet is arranged at the lower part of the end face of the rear end of the box body; the gas vent, the demister and the liquid level meter interface are arranged at the top end of the box body, the emptying port is arranged on the side face of the box body, the upper baffle is arranged above the inside of the box body, the lower baffle is arranged below the inside of the box body, and the supporting piece is arranged on the bottom face of the box body. The utility model provides a simple structure, stability are good, gas-liquid separation is efficient, have the oil-water separation function concurrently, can generally effectually be applicable to soil and groundwater pollution landmass normal position restoration work progress's gas-liquid separation device.
Description
Technical Field
The utility model relates to a gas-liquid separation equipment for polluting ground soil groundwater restoration technical field, specifically relates to a be used for polluting required ground vapour and liquid separator of normal position restoration techniques such as heterogeneous extraction restoration of soil and/or groundwater normal position and normal position thermal desorption restoration.
Background
With the advance of the urbanization process and the adjustment of the industrial structure, the industrial enterprises of pesticide, chemical industry and the like in large and medium-sized cities gradually stop or move away from urban areas, and meanwhile, a large amount of organic matter polluted plots are left to be subjected to the soil groundwater remediation work. The multiphase extraction technology is an environment-friendly in-situ remediation technology aiming at organic pollution of soil and underground water, has the advantages of simple and reliable system, capability of treating high-concentration polluted plots, high remediation efficiency, controllable secondary pollution and the like, and mainly extracts soil gas, underground water and non-aqueous phase liquid (NAPL) in an underground pollution area to the ground through a vacuum extraction means to carry out gas-liquid phase separation and subsequent respective treatment so as to remediate and remove organic pollutants in the soil and the underground water and realize plot remediation. In addition, the in-situ thermal desorption technology capable of repairing the organic polluted land mass more efficiently also relates to a multi-phase extraction technology, the essence of the technology is a heat-enhanced multi-phase extraction technology, and the repairing process also relates to simultaneous extraction of gas-liquid phase pollutants under the action of vacuum, gas-liquid phase separation after cooling and condensation and subsequent respective treatment.
The multiphase extraction system is generally composed of three main parts, namely a multiphase extraction unit, a gas-liquid phase separation unit and a ground pollutant treatment unit, wherein a gas-liquid separation device is an important device of the multiphase extraction system and is mainly used for effectively separating gas-liquid phase fluid mixed and extracted to the ground, and then respectively carrying out subsequent wastewater and waste gas treatment and waste liquid treatment. Common gas-liquid separators in the market generally mainly take gravity settling, centrifugal separation or baffling separation forms, and various problems of large equipment volume, low gas-liquid separation efficiency, large running resistance, poor tolerance to gas-liquid ratio and load change, need of separate separation of oil phase and water phase in liquid phase, easy occurrence of blockage and the like generally exist in the using process of repair engineering, so that a new technical scheme is needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas-liquid separation device overcomes the not enough of gas-liquid separation device existence in current repair engineering uses, simple structure, stability are good, gas-liquid separation is efficient, have the water oil separating function concurrently, can generally effectually be applicable to soil and groundwater pollution landmass normal position restoration work progress.
In order to achieve the above object, the present invention provides a gas-liquid separator for in-situ remediation of contaminated soil and groundwater, wherein the gas-liquid separator comprises a tank body, and a fluid inlet, a water outlet, an air outlet, a demister, a level meter interface, an oil outlet, a clean discharge port, an upper baffle, a lower baffle and a support member which are arranged on the tank body; the box body is a cuboid with a hollow interior; the fluid inlet is arranged at the upper part of the end face of the front end of the box body, the water outlet is arranged at the lower part of the end face of the same end, and the oil outlet is arranged at the lower part of the end face of the rear end of the box body; the gas vent, the demister and the liquid level meter interface are arranged at the top end of the box body, the emptying port is arranged on the side face of the box body, the upper baffle is arranged above the inside of the box body, the lower baffle is arranged below the inside of the box body, and the supporting piece is arranged on the bottom face of the box body.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the upper baffle is vertically arranged in the tank body from the top surface of the tank body downwards, and the lower baffle is vertically arranged in the tank body from the bottom surface of the tank body upwards.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the upper baffle and the lower baffle are arranged at positions which equally divide the box body into three parts along the length direction, the upper baffle is close to the front end of the box body, and the lower baffle is close to the rear end of the box body.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the number of the liquid level meter interfaces is two, namely a first liquid level meter interface arranged behind the lower baffle and a second liquid level meter interface arranged in front of the lower baffle.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the first liquid level meter interface is arranged at the air outlet at the top end of the tank body, and the second liquid level meter interface is arranged at the middle section at the top end of the tank body.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the exhaust port is arranged close to the rear end of the box body, and the demister is arranged at the top of the exhaust port.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the two support pieces are respectively positioned below the long edges at the two sides of the bottom end of the box body and are fixed with the box body.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the tank body, the fluid inlet, the water outlet, the exhaust port, the demister, the liquid level meter interface, the oil discharge port, the clean discharge port, the upper baffle plate, the lower baffle plate and the support piece are all of carbon steel structures.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the inner walls of the box body, the fluid inlet, the water outlet, the air outlet, the demister, the liquid level meter interface, the oil outlet and the clean discharge port are coated with epoxy resin anticorrosive coatings.
The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized in that the outer surfaces of the box body, the fluid inlet, the water outlet, the air outlet, the demister, the liquid level meter interface, the oil drain port, the clean discharge port, the upper baffle plate, the lower baffle plate and the support piece are coated with the anti-rust paint layers.
The utility model provides a be used for polluting prosthetic vapour and liquid separator of soil groundwater normal position has following advantage:
(1) the gas-liquid separator can be widely applied to the in-situ remediation construction process of soil and underground water polluted plots, and is matched with technologies such as multiphase extraction and in-situ thermal desorption to realize effective separation of gas, liquid and solid phases;
(2) the gas-liquid separator performs gas-liquid-solid phase separation by the fluid mechanics and gravity principle, and has the advantages of simple device, stable operation, portable use, economy and effectiveness;
(3) the gas-liquid separator is provided with a bottom emptying port, and can discharge sludge periodically, so that the problem of clogging in the device is solved;
(4) the gas-liquid separator is not internally provided with any complex structural member or filtering material, so that the wind resistance and wind pressure loss in the box body are reduced, and the service life of the box body is prolonged;
(5) the gas-liquid separator is internally provided with a liquid level meter, and the oil-water separation function and the drainage and oil discharge function of the device can be realized by adopting a delayed pump starting mode according to the height of the liquid level in the box body;
(6) this vapour and liquid separator gas outlet sets up the defroster, can further reduce the moisture of volatilizing out gas from vapour and liquid separator, does benefit to equipment such as protection fan and activated carbon tank, also does benefit to the efficiency that improves exhaust-gas treatment simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the gas-liquid separator for in-situ remediation of contaminated soil and groundwater of the present invention.
Fig. 2 is a view from the front end angle of the gas-liquid separator for in-situ remediation of contaminated soil groundwater according to the present invention.
Wherein: 1. a box body; 2. a fluid inlet; 3. a water outlet; 4. an exhaust port; 5. a demister; 6. a first level meter interface; 7. a second level gauge interface; 8. an oil discharge port; 9. putting a clean mouth; 10. an upper baffle plate; 11. a lower baffle plate; 12. and a support member.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the gas-liquid separator for in-situ remediation of contaminated soil and groundwater provided by the present invention comprises a tank 1, and a fluid inlet 2, a water outlet 3, an air outlet 4, a demister 5, a level meter interface, an oil outlet 8, a clean outlet 9, an upper baffle 10, a lower baffle 11 and a support member 12 which are arranged on the tank 1; the box body 1 is a cuboid with a hollow interior; the fluid inlet 2 is arranged at the upper part of the end face of the front end of the box body 1 along the length direction, the water outlet 3 is arranged at the lower part of the end face of the same end, and the oil outlet 8 is arranged at the lower part of the end face of the rear end of the box body 1; the gas vent 4, the demister 5 and the liquid level meter interface are arranged at the top end of the box body 1, the emptying port 9 is arranged on the side face of the box body 1, the upper baffle is arranged above the inside of the box body 1, the lower baffle is arranged below the inside of the box body 1, and the supporting piece 12 is arranged on the bottom face of the box body 1.
The upper baffle is vertically arranged from the top surface of the box body 1 to the bottom inside the box body 1, and the lower baffle is vertically arranged from the bottom surface of the box body 1 to the top inside the box body 1.
The box body 1 is equally divided into three parts along the length direction at the set position of the upper baffle and the lower baffle, the upper baffle is close to the front end of the box body 1, and the lower baffle is close to the rear end of the box body 1.
The level gauge interfaces are provided with two, respectively a first level gauge interface 6 arranged behind the lower baffle 11 and a second level gauge interface 7 arranged in front of the lower baffle 11.
The first liquid level meter interface 6 is arranged at the exhaust port 4 at the top end of the box body 1, the second liquid level meter interface 7 is arranged at the middle section at the top end of the box body 1, and the distance between the second liquid level meter interface 7 and the front end and the rear end of the box body 1 is equal. The first liquid level meter interface 6 and the second liquid level meter interface 7 are positioned on the same line parallel to the long edge of the top surface of the box body 1.
The setting position of gas vent 4 is close to box 1 rear end, and defroster 5 sets up at gas vent 4 top.
Two supporting pieces 12 are arranged and respectively located below the long edges at the two sides of the bottom end of the box body 1 and fixed with the box body 1. The support member 12 is in the form of an elongate rail.
The box body 1, the fluid inlet 2, the water outlet 3, the air outlet 4, the demister 5, the liquid level meter interface, the oil outlet 8, the clean discharge port 9, the upper baffle plate 10, the lower baffle plate 11 and the support piece 12 are all made of carbon steel.
The inner walls of the box body 1, the fluid inlet 2, the water outlet 3, the air outlet 4, the demister 5, the liquid level meter interface, the oil outlet 8 and the clean outlet 9 are coated with epoxy resin anticorrosive coatings.
The outer surfaces of the box body 1, the fluid inlet 2, the water outlet 3, the air outlet 4, the demister 5, the liquid level meter interface, the oil outlet 8, the clean discharge port 9, the upper baffle plate 10, the lower baffle plate 11 and the support piece 12 are coated with antirust paint layers.
When the gas-liquid separator needs to be used, the demister 5 is connected with a suction pump, the oil discharge port 8 is connected with an oil discharge pump, the water discharge port 3 is connected with a drainage pump, and the emptying port 9 is connected with a sludge discharge pump; a suction pump at the rear end of a demister 5 is started to pump gas-liquid mixed fluid polluted underground into a box body 1 through a fluid inlet 2, the fluid is collided and separated with an upper baffle plate 10 after entering the box body 1, the separated gas bypasses the upper baffle plate 10 and is further collided and separated with the liquid in the box body 1 and the liquid at the bottom, the gas is discharged into a gas phase treatment unit through a demister 5 through an exhaust port 4 above a gas-liquid separator, and underground water, non-aqueous phase liquid (NAPL) and silt fall into the box body 1.
The lower baffle 11 arranged in the box body 1 mainly has two functions: intercepting heavy non-aqueous phase liquid (DNAPL) and silt to prevent the problems of blockage of subsequent pipelines and equipment by the DNAPL and the silt and the like; the second is to overflow the light non-aqueous liquid (LNAPL) and then to discharge the LNAPL from the oil drain 8 by means of an oil drain pump.
After the extraction system normally operates, the liquid level in the box body 1 of the gas-liquid separator gradually rises, and when the liquid level at the front end of the lower baffle plate reaches a high liquid level, the liquid level meter of the second liquid level meter interface 7 arranged in front of the lower baffle plate 11 delays for a plurality of times through signal transmission and then starts the drainage pump. In the time of this time delay, because the liquid level in the tank body 1 is higher than the upper end of the lower baffle, the LNAPL phase floating on the liquid level will overflow to the tank body 1 at the rear end over the lower baffle, when the liquid level at the rear end reaches the high liquid level, the liquid level meter of the first liquid level meter interface 6 installed behind the lower baffle 11 starts the oil discharge pump through signal transmission, and the LNAPL layer and the groundwater with the LNAPL amount are discharged from the oil discharge port 8 of the tank body 1. After the delay time is over, the drain pump is automatically started to drain the polluted groundwater or the groundwater with a small quantity of LNAPL from the drain port 3. During the operation of the extraction system, when the amount of the silt at the bottom of the box body 1 is excessive, the dredge pump is manually started to discharge the silt-containing fluid from the emptying port 9.
The above operation is based on the situation that the extracted liquid phase contains LNAPL, and if the extracted liquid phase does not contain LNAPL, the operation is different from the above situation in that a time relay linked with a liquid level meter before the lower baffle plate 11 needs to be closed, and the function of delaying the pump starting is cancelled. When the liquid level at the front end of the lower baffle plate reaches a high liquid level, the liquid level meter of the second liquid level meter interface 7 arranged in front of the lower baffle plate 11 starts the drainage pump to drain water directly in a chain manner, and the space of the box body 1 behind the lower baffle plate 11 is not utilized.
The gas-liquid separator for in-situ remediation of contaminated soil groundwater provided by the present invention will be further described with reference to the following examples.
Example 1
The utility model provides a be used for polluting prosthetic vapour and liquid separator of soil groundwater normal position, the power distribution box comprises a box body 1, fluid inlet 2, outlet 3, gas vent 4, defroster 5, first level gauge interface 6, second level gauge interface 7, oil drain port 8, put clean mouth 9, go up plate washer 10, lower plate washer 11 and support piece 12, the front end of box 1 is equipped with fluid inlet 2 and outlet 3, the top of box 1 is equipped with gas vent 4, defroster 5 and level gauge interface, the rear end of box 1 is equipped with oil drain port 8, the side of box 1 is equipped with puts clean mouth 9, the inside upper end of box 1 is equipped with the overhead gage, the inside lower extreme of box 1 is equipped with down the baffle, the bottom surface of box 1 is equipped with support piece 12.
The box body 1 is a rectangular box body, the rectangular box body enables the contact area of fluid and the box body 1 to be large, and vortex is easily formed in the box body 1, so that gas-liquid-solid separation is complete.
The gas-liquid separator comprises a box body 1, a fluid inlet 2, a water outlet 3, an exhaust port 4, a demister 5, a first liquid level meter interface 6, a second liquid level meter interface 7, an oil discharge port 8, a clean discharge port 9, an upper baffle plate 10, a lower baffle plate 11 and a support piece 12 which are all made of metal materials, and the metal materials guarantee the stability of the structure of the gas-liquid separator.
The inner walls of the box body 1, the fluid inlet 2, the water outlet 3, the air exhaust port 4, the demister 5, the first liquid level meter interface 6, the second liquid level meter interface 7, the oil discharge port 8 and the emptying port 9 are coated with anticorrosive coatings, the anticorrosive coatings are made of epoxy resin, the inner wall anticorrosive coatings can protect the inner wall of the gas-liquid separator, and the service life of the box body 1 is prolonged.
The outer surfaces of the box body 1, the fluid inlet 2, the water outlet 3, the exhaust port 4, the demister 5, the first liquid level meter interface 6, the second liquid level meter interface 7, the oil discharge port 8, the clean discharge port 9, the upper baffle plate 10, the lower baffle plate 11 and the support piece 12 are coated with antirust paint, the antirust paint can protect the outer wall of the gas-liquid separator, and the service life of the box body 1 is prolonged.
The support 12 is provided with 2, and 2 support 12 distribute in the long limit both sides of bottom of box 1. The 2 supports 12 support the tank 1 so that it does not directly touch the ground.
When the gas-liquid separator needs to be used, the demister 5 is connected with a suction pump, the oil discharge port 8 is connected with an oil discharge pump, the water discharge port 3 is connected with a drainage pump, and the emptying port 9 is connected with a sludge discharge pump. A suction pump at the rear end of a demister 5 is started to pump gas-liquid mixed fluid polluted underground into a box body 1 through a fluid inlet 2, the fluid is collided and separated with an upper baffle plate 10 after entering the box body 1, the separated gas bypasses the upper baffle plate 10 and is further collided and separated with the liquid in the box body 1 and the liquid at the bottom, the gas is discharged into a gas phase treatment unit through a demister 5 through an exhaust port 4 above a gas-liquid separator, and underground water, non-aqueous phase liquid (NAPL) and silt fall into the box body 1. The lower baffle 11 arranged in the box body 1 mainly has two functions: intercepting heavy non-aqueous phase liquid (DNAPL) and silt to prevent the problems of blockage of subsequent pipelines and equipment by the DNAPL and the silt and the like; the second is to overflow the light non-aqueous liquid (LNAPL) and then to discharge the LNAPL from the oil drain 8 by means of an oil drain pump. After the extraction system normally operates, the liquid level in the box body 1 of the gas-liquid separator gradually rises, and when the liquid level at the front end of the lower baffle plate 11 reaches a high liquid level, the liquid level meter of the second liquid level meter interface 7 arranged in front of the lower baffle plate 11 delays for a plurality of times through signal transmission and then starts the drainage pump. In the time of this time delay, because the liquid level in the tank body 1 is higher than the upper end of the lower baffle 11, the LNAPL phase floating on the liquid level can cross the lower baffle 11 and overflow into the tank body 1 at the rear end, when the liquid level at the rear end reaches the high liquid level, the liquid level meter of the first liquid level meter interface 6 installed behind the lower baffle 11 starts the oil discharge pump through signal transmission, and the LNAPL layer and the groundwater with the LNAPL amount are discharged from the oil discharge port 8 of the tank body 1. After the delay time is over, the drain pump is automatically started to drain the polluted groundwater or the groundwater with a small quantity of LNAPL from the drain port 3. During the operation of the extraction system, when the amount of the silt at the bottom of the box body 1 is excessive, the dredge pump is manually started to discharge the silt-containing fluid from the emptying port 9.
The above operation is based on the situation that the extracted liquid phase contains LNAPL, and if the extracted liquid phase does not contain LNAPL, the operation is different from the above situation in that a time relay linked with a liquid level meter before the lower baffle plate 11 needs to be closed, and the function of delaying the pump starting is cancelled. When the liquid level at the front end of the lower baffle plate 11 reaches a high liquid level, the liquid level meter of the second liquid level meter interface 7 arranged in front of the lower baffle plate 11 is linked to start the drainage pump to directly drain water, and the space of the box body 1 behind the lower baffle plate 11 is not utilized.
The utility model provides a be used for polluting prosthetic vapour and liquid separator of soil groundwater normal position is a required ground gas-liquid separation device of normal position restoration techniques such as being used for polluting the heterogeneous extraction restoration of soil and/or groundwater normal position, normal position thermal desorption restoration, can overcome the not enough that gas-liquid separation device exists in current repair engineering application, simple structure, stability are good, gas-liquid separation is efficient, have the water oil separating function concurrently, can generally effectually be applicable to soil and groundwater pollution landmass normal position restoration work progress.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. The gas-liquid separator for in-situ remediation of polluted soil and underground water is characterized by comprising a tank body, and a fluid inlet, a water outlet, an exhaust port, a demister, a liquid level meter interface, an oil outlet, a clean discharge port, an upper baffle plate, a lower baffle plate and a support piece which are arranged on the tank body;
the box body is a cuboid with a hollow interior; the fluid inlet is arranged at the upper part of the end face of the front end of the box body, the water outlet is arranged at the lower part of the end face of the same end, and the oil outlet is arranged at the lower part of the end face of the rear end of the box body; the gas vent, the demister and the liquid level meter interface are arranged at the top end of the box body, the emptying port is arranged on the side face of the box body, the upper baffle is arranged above the inside of the box body, the lower baffle is arranged below the inside of the box body, and the supporting piece is arranged on the bottom face of the box body.
2. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 1, wherein the upper baffle is vertically arranged inside the tank body from the top surface of the tank body downwards, and the lower baffle is vertically arranged inside the tank body from the bottom surface of the tank body upwards.
3. The gas-liquid separator for in-situ remediation of polluted soil groundwater as claimed in claim 2, wherein the upper baffle and the lower baffle are arranged at positions which equally divide the tank body into three parts along the length direction, the upper baffle is close to the front end of the tank body, and the lower baffle is close to the rear end of the tank body.
4. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 1, wherein the two liquid level meter interfaces are a first liquid level meter interface arranged behind the lower baffle plate and a second liquid level meter interface arranged in front of the lower baffle plate.
5. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 4, wherein the first liquid level meter interface is arranged at an exhaust port at the top end of the tank body, and the second liquid level meter interface is arranged at the middle section of the top end of the tank body.
6. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 5, wherein the exhaust port is arranged close to the rear end of the tank body, and the demister is arranged at the top of the exhaust port.
7. The gas-liquid separator for in-situ remediation of polluted soil groundwater as claimed in claim 1, wherein two of the support members are respectively located below the long sides of the bottom end of the tank body and fixed with the tank body.
8. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 1, wherein the tank body, the fluid inlet, the water outlet, the air outlet, the demister, the level gauge interface, the oil outlet, the clean discharge port, the upper baffle, the lower baffle and the support are all of a carbon steel structure.
9. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 1, wherein inner walls of the tank body, the fluid inlet, the water outlet, the air outlet, the demister, the liquid level meter interface, the oil outlet and the clean-out opening are coated with an epoxy resin anticorrosive coating.
10. The gas-liquid separator for in-situ remediation of polluted soil groundwater according to claim 1, wherein the outer surfaces of the tank body, the fluid inlet, the water outlet, the air outlet, the demister, the liquid level meter interface, the oil drain port, the clean discharge port, the upper baffle plate, the lower baffle plate and the support are coated with a layer of anti-rust paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120388643.3U CN214488275U (en) | 2021-02-22 | 2021-02-22 | Gas-liquid separator for in-situ remediation of polluted soil and underground water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120388643.3U CN214488275U (en) | 2021-02-22 | 2021-02-22 | Gas-liquid separator for in-situ remediation of polluted soil and underground water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214488275U true CN214488275U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120388643.3U Active CN214488275U (en) | 2021-02-22 | 2021-02-22 | Gas-liquid separator for in-situ remediation of polluted soil and underground water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214488275U (en) |
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2021
- 2021-02-22 CN CN202120388643.3U patent/CN214488275U/en active Active
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