CN210769218U

CN210769218U - Gas-liquid dual-purpose extraction pump

Info

Publication number: CN210769218U
Application number: CN201921323982.2U
Authority: CN
Inventors: 董洁; 黄玉才; 张兴奎
Original assignee: Beijing Victex Environmental Protection Technology Development Co ltd
Current assignee: Beijing Victex Environmental Protection Technology Development Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-16
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a dual-purpose extraction pump of gas-liquid, including air compressor, vacuum pump and level sensor, air compressor intercommunication has first communicating pipe, first communicating pipe intercommunication has first extraction pipe, first extraction pipe intercommunication has the booster, the intercommunication of booster has the second extraction pipe, second extraction pipe intercommunication has the water tank, the intercommunication has fourth communicating pipe between the induction port end of vacuum pump and the knockout drum gas outlet, the vacuum pump intercommunication has the washing basin, level sensor passes through the fixation clip to be fixed on the surface of first extraction pipe, level sensor's signal output part and controller signal input part are connected. The device has the advantages that VOCs waste gas and underground water in the underground water can be pumped out, and the removal effect of underground water pollutants is guaranteed.

Description

Gas-liquid dual-purpose extraction pump

Technical Field

The utility model belongs to environmental protection fields such as hydrogeology and soil restoration specifically are a dual-purpose extraction pump of gas-liquid.

Background

At present, the pollution problem of soil and underground water is serious, and a multiphase extraction technology is used in the in-situ remediation process of treatment site remediation. Namely, the vacuum is applied through an extraction well installed underground, and soil gas, polluted underground water and mobile (if any) non-aqueous phase liquid in underground aeration zone and saturation zone are extracted to the ground surface, and then further treated or discharged through a ground surface treatment facility. The method uses hydraulic pump and blower. However, the following problems exist: 1. when the groundwater is extracted by the conventional extraction equipment, the groundwater can only reach 7-8 meters underground under the influence of atmospheric pressure and pumping equipment; groundwater over 10 meters can not reach the extraction depth usually by adopting an extraction method; 2. a hydraulic pump in the extraction equipment can use a submersible pump, only liquid can be extracted, and the extraction equipment cannot be selected due to the limitation of different wellhead sizes and the limitation of explosion-proof requirements of factory areas polluted by VOCs; 3. the sewage is discharged by the aid of extra power under the influence of liquid discharge of the gas-liquid separation tank above the ground, and more equipment is required to be added.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model provides a dual-purpose extraction pump of gas-liquid, the purpose of realization does, can take out the VOCs waste gas and the groundwater of groundwater, guarantees the effect of getting rid of groundwater pollutant.

In order to achieve the purpose, the technical scheme provided by the utility model is that, the gas-liquid dual-purpose extraction pump comprises an air compressor, a vacuum pump and a water level sensor, the gas outlet end of the air compressor is communicated with a first communicating pipe, one end of the first communicating pipe is communicated with a first extraction pipe, one end of the first extraction pipe is communicated with a supercharger, one end of the supercharger is communicated with a second extraction pipe, one end of the second extraction pipe is communicated with a water tank through a second communicating pipe, one side of the second communicating pipe close to the second extraction pipe is communicated with a separation tank through a third communicating pipe, a fourth communicating pipe is communicated between the gas inlet end of the vacuum pump and the gas outlet of the separation tank, the gas outlet end of the vacuum pump is communicated with an exhaust pipe, one end of the exhaust pipe is communicated with a washing pool, the water level sensor is fixed on the surface of the first extraction pipe through a fixing clip, the water level sensor is characterized in that a signal output end of the water level sensor is connected with a signal input end of the controller, a first protective net is arranged at a water inlet end of the supercharger, one side of the second extraction pipe is communicated with a first check valve, and a second protective net is arranged at one end of the first check valve.

Preferably, the first extraction pipe and the second extraction pipe are arranged in the extraction well, and the first extraction pipe and the second extraction pipe form a U shape.

Preferably, the surface of the first communicating pipe is communicated with a first automatic valve, the surface of the second communicating pipe is communicated with a second automatic valve, the surface of the third communicating pipe is communicated with a third automatic valve, and the surface of the fourth communicating pipe is communicated with a second check valve.

Preferably, the position corresponding to the water inlet end of the supercharger is the lowest water level for extraction, and the position of the first check valve on one side of the second extraction pipe is the highest water level for extraction.

Preferably, the flow direction of the first check valve is from the outside to the inside of the second extraction duct.

Preferably, the flow direction of the second check valve is a direction toward the vacuum pump.

Preferably, the signal output end of the controller is connected with the control ends of the air compressor, the vacuum pump, the first automatic valve, the second automatic valve and the third automatic valve.

The utility model adopts the above technical scheme, beneficial effect includes: according to the gas-liquid dual-purpose extraction pump, the air compressor and the vacuum pump are arranged on the ground, the first extraction pipe and the second extraction pipe are arranged in the extraction well, the size of the extraction pump can be designed according to the sizes of different wells, and equipment is easier to install; the first extraction pipe and the second extraction pipe form a U shape, and a gas phase extraction mode and a liquid phase extraction mode are switched through a U-shaped pipe liquid seal, so that the removal effect of underground water pollutants is ensured; the size or the shape of the supercharger is changed, so that the speed of water flow entering the water inlet can be changed, the pumping amount of underground water is controlled, and the requirement is met; the water level sensor and the first extraction pipe are fixed together, so that integrated installation is realized, and installation and maintenance are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises an air compressor, a vacuum pump, a water level sensor, a.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1, the present invention provides a technical solution: a gas-liquid dual-purpose extraction pump comprises an air compressor 1, a vacuum pump 2 and a water level sensor 3, wherein the gas outlet end of the air compressor 1 is communicated with a first communicating pipe 4, one end of the first communicating pipe 4 is communicated with a first extraction pipe 5, one end of the first extraction pipe 5 is communicated with a supercharger 6, one end of the supercharger 6 is communicated with a second extraction pipe 7, one end of the second extraction pipe 7 is communicated with a water tank 9 through a second communicating pipe 8, one side, close to the second extraction pipe 7, of the second communicating pipe 8 is communicated with a separation tank 11 through a third communicating pipe 10, the separation tank 11 enables gas-liquid separation, and normal operation of the vacuum pump 2 is guaranteed; a fourth communicating pipe 12 is communicated between the air suction end of the vacuum pump 2 and the air outlet of the separation tank 11, the air outlet end of the vacuum pump 2 is communicated with an exhaust pipe 13, one end of the exhaust pipe 13 is communicated with a washing tank 14, and the washing tank 14 is used for washing and adsorbing the extracted gas, so that the environmental pollution is avoided; the water level sensor 3 is fixed on the surface of the first extraction pipe 5 through the fixing clamp 20, the signal output end of the water level sensor 3 is connected with the signal input end of the controller 21, and the water level sensor 3 is fixed with the first extraction pipe 5, so that the installation and the maintenance are convenient; a first protective net 22 is arranged at the water inlet end of the supercharger 6, a first check valve 15 is communicated with one side of the second extraction pipe 7, a second protective net 23 is arranged at one end of the first check valve 15, and the extraction pipe is prevented from being blocked by sundries through the protective net.

The first extraction pipe 5 and the second extraction pipe 7 are arranged in the extraction well, the first extraction pipe 5 and the second extraction pipe 7 form a U-shaped structure, liquid sealing can be realized by the U-shaped structure, and two extraction modes of gas phase and liquid phase can be switched.

The first communication pipe 4 has a first automatic valve 16 connected to the surface thereof, the second communication pipe 8 has a second automatic valve 17 connected to the surface thereof, the third communication pipe 10 has a third automatic valve 18 connected to the surface thereof, and the fourth communication pipe 12 has a second check valve 19 connected to the surface thereof.

The water inlet end of the supercharger 6 corresponds to the lowest water level for extraction, and the first check valve 15 on one side of the second extraction pipe 7 is at the highest water level for extraction.

The flow direction of the first check valve 15 is from the outside to the inside of the second extraction pipe 7.

The flow direction of the second check valve 19 is toward the vacuum pump 2.

The signal output end of the controller 21 is connected with the control ends of the air compressor 1, the vacuum pump 2, the first automatic valve 16, the second automatic valve 17 and the third automatic valve 18.

The utility model discloses the theory of operation: the signal of the liquid level sensor 3 is transmitted to the controller 21, and the controller 21 starts or stops the vacuum pump 1 or the air compressor 2 according to the control requirement; during the liquid phase extraction process: starting the air compressor 1 or opening the first automatic valve 16, providing an external air source into the first extraction pipe 5 through the first communication pipe 4, leading high-pressure air to pass through the supercharger 6, leading underground water at a water inlet of the supercharger 6 into the second extraction pipe 7, leading the first check valve 15 to be in a closed state because the vacuum pump is not started, leading the underground water to continuously enter the second extraction pipe 7 and flow into the water tank 9, stopping the air compressor 1 or closing the first automatic valve 16 when the liquid level sensor 3 detects that the underground water level is reduced from the highest water level to the lowest water level, and finishing the liquid phase extraction process; and (3) a vapor extraction process: when stopping air compressor 1 work or closing first automatic valve 16, the internal gas pressure of booster 6 reduces gradually, first extraction pipe 5 and second extraction pipe 7 constitute the U type form, because the liquid seal effect, form a confined cavity in the second extraction pipe 7 this moment, start vacuum pump 2 this moment, because negative pressure effect, first check valve 15 opens, begin to take out gas, the groundwater level is constantly resumeing this moment, when level sensor 3 detects groundwater and resumeing to the maximum water level from the minimum water level gradually, stop vacuum pump 2, first check valve 15 closes thereupon, the gas phase extraction process finishes.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but can be modified and changed by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dual-purpose extraction pump of gas-liquid, includes air compressor (1), vacuum pump (2) and level sensor (3), its characterized in that: the air compressor is characterized in that an air outlet end of the air compressor (1) is communicated with a first communicating pipe (4), one end of the first communicating pipe (4) is communicated with a first extraction pipe (5), one end of the first extraction pipe (5) is communicated with a supercharger (6), one end of the supercharger (6) is communicated with a second extraction pipe (7), one end of the second extraction pipe (7) is communicated with a water tank (9) through a second communicating pipe (8), one side, close to the second extraction pipe (7), of the second communicating pipe (8) is communicated with a separation tank (11) through a third communicating pipe (10), a fourth communicating pipe (12) is communicated between an air suction end of the vacuum pump (2) and an air outlet of the separation tank (11), an air outlet end of the vacuum pump (2) is communicated with an exhaust pipe (13), one end of the exhaust pipe (13) is communicated with a washing tank (14), and the water level sensor (3) is fixed on the surface of the first extraction pipe (5) through a fixing clamp (20), the signal output part of the water level sensor (3) is connected with the signal input part of the controller (21), the water inlet end of the supercharger (6) is provided with a first protective net (22), one side of the second extraction pipe (7) is communicated with a first check valve (15), and one end of the first check valve (15) is provided with a second protective net (23).

2. The gas-liquid dual-purpose extraction pump according to claim 1, wherein: the first extraction pipe (5) and the second extraction pipe (7) are arranged in the extraction well, and the first extraction pipe (5) and the second extraction pipe (7) form a U shape.

3. The gas-liquid dual-purpose extraction pump according to claim 1, wherein: the surface of the first communicating pipe (4) is communicated with a first automatic valve (16), the surface of the second communicating pipe (8) is communicated with a second automatic valve (17), the surface of the third communicating pipe (10) is communicated with a third automatic valve (18), and the surface of the fourth communicating pipe (12) is communicated with a second check valve (19).

4. The gas-liquid dual-purpose extraction pump according to claim 1, wherein: the position corresponding to the water inlet end of the supercharger (6) is the lowest water level for extraction, and the position of the first check valve (15) on one side of the second extraction pipe (7) is the highest water level for extraction.

5. The gas-liquid dual-purpose extraction pump according to claim 1, wherein: the first check valve (15) flows from the outside to the inside of the second extraction pipe (7).

6. A gas-liquid dual-purpose extraction pump according to claim 3, wherein: the flow direction of the second check valve (19) is towards the vacuum pump (2).

7. A gas-liquid dual-purpose extraction pump according to claim 1 or 3, characterized in that: and the signal output end of the controller (21) is connected with the control ends of the air compressor (1), the vacuum pump (2), the first automatic valve (16), the second automatic valve (17) and the third automatic valve (18).