CN216695701U - Double-air-bag pump for underground water sampling - Google Patents
Double-air-bag pump for underground water sampling Download PDFInfo
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- CN216695701U CN216695701U CN202122662727.4U CN202122662727U CN216695701U CN 216695701 U CN216695701 U CN 216695701U CN 202122662727 U CN202122662727 U CN 202122662727U CN 216695701 U CN216695701 U CN 216695701U
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Abstract
The utility model discloses a double-air-bag pump for underground water sampling, which relates to the field of underground water environment monitoring and sampling and comprises a pump shell, wherein an interlayer is arranged at the inner end of the pump shell, the interlayer divides an inner cavity of the pump shell into a first pump cavity and a second pump cavity, air bags are arranged in the first pump cavity and the second pump cavity respectively, a communicating pipe is arranged between the air bags, the water inlet end of the double-air-bag pump is connected with a water inlet pipe, the water outlet end of the double-air-bag pump is connected with a water outlet pipe, an air pipe is inserted into the pump shell, and one-way valves are arranged in the communicating pipe, the water inlet pipe and the water outlet pipe respectively. The flow rate is stable when this double-air-bag pump groundwater is sampled, and the sample volume increases, and work efficiency improves.
Description
Technical Field
The utility model relates to the field of underground water environment monitoring and sampling, in particular to a double-air-bag pump for underground water sampling.
Background
The air bag pump is widely applied to underground water environment monitoring and sampling, is suitable for sampling of almost all projects such as conventional indexes, volatile organic compounds, semi-volatile organic compounds, inorganic substances, heavy metals and the like, and is one of the best sampling modes for underground water sample collection.
The airbag pump that uses at present almost all is single airbag pump, and single airbag pump can realize volatile organic compounds and sample, nevertheless because of the velocity of flow undulant great during the sampling, and the velocity of flow is on the low side when other monitoring items sample and well cleanings to make single airbag pump practicality limited. In order to improve the flow rate of the air bag pump and increase the application range of the air bag pump, the design provides the double-air bag pump for underground water sampling.
Disclosure of Invention
In order to solve the problems, the utility model discloses a double-air-bag pump for underground water sampling, which has the advantages of stable flow speed, increased sampling amount and improved working efficiency during underground water sampling.
In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a two air bag pumps are used in groundwater sample, includes the pump case, pump case inner is equipped with the interlayer, the interlayer will first pump chamber and second pump chamber are cut apart into to the pump case inner chamber, first pump chamber, second pump intracavity all are equipped with the gasbag, be equipped with communicating pipe between the gasbag, two air bag pump intake end are connected with the inlet tube, the delivery end is connected with the outlet pipe, the trachea has been inserted in the pump case, all be equipped with the check valve in communicating pipe, inlet tube, the outlet pipe. The communicating pipe runs through the interlayer and is arranged, the double-air-bag pump is provided with a storage battery, an air compressor and a controller, the storage battery supplies power to the air compressor and the controller, and the air compressor realizes air introduction or discharge in the pump shell through the air pipe.
As an improvement of the present invention, the air bag includes a first air bag provided in the first pump chamber and a second air bag provided in the second pump chamber.
As a refinement of the utility model, the first balloon volume is half the volume of the second balloon.
As an improvement of the utility model, the water inlet pipe is communicated with the first air bag, and the water outlet pipe is communicated with the second air bag.
As an improvement of the present invention, the flow direction of the one-way valve is the direction from the first pump chamber to the second pump chamber.
As an improvement of the utility model, one end of the air pipe in the length direction is arranged in the first pump cavity, and the other end of the air pipe penetrates through the interlayer, the second pump cavity and the inner end wall of the pump shell to extend out.
As an improvement of the present invention, the first pump chamber and the second pump chamber are provided with air holes on the air pipe.
As an improvement of the present invention, the pore diameter of the air hole on the air tube in the first pump chamber is larger than the pore diameter of the air hole on the air tube in the second pump chamber.
Compared with the prior art, the utility model has the following advantages: the air bag is additionally arranged on the basis of the existing single-air-bag pump, so that the double-air-bag alternative work is realized, the flow speed is stable when underground water is sampled, the sampling flow is increased, the working efficiency of the air bag pump is improved, and the application range of the air bag pump is enlarged.
Drawings
FIG. 1 is a schematic view of the overall structure of a dual-bladder pump for sampling underground water according to the present invention;
list of reference numerals: 1. a pump housing; 2. an interlayer; 3. a first pump chamber; 4. a second pump chamber; 5. a communicating pipe; 6. a water inlet pipe; 7. a water outlet pipe; 8. an air tube; 9. a one-way valve; 10. a first air bag; 11. a second air bag.
Detailed Description
The utility model is further described below with reference to the figures and examples.
As shown in fig. 1, a double-air-bag pump for underground water sampling comprises a pump case 1, wherein an interlayer 2 is arranged at the inner end of the pump case 1, the interlayer 2 divides an inner cavity of the pump case 1 into a first pump cavity 3 and a second pump cavity 4, air bags are arranged in the first pump cavity 3 and the second pump cavity 4, a communicating pipe 5 is arranged between the air bags, the water inlet end of the double-air-bag pump is connected with a water inlet pipe 6, the water outlet end of the double-air-bag pump is connected with a water outlet pipe 7, an air pipe 8 is inserted into the pump case 1, and a check valve 9 is arranged in each of the communicating pipe 5, the water inlet pipe 6 and the water outlet pipe 7.
Further, the air cells include a first air cell 10 provided in the first pump chamber 3 and a second air cell 11 provided in the second pump chamber 4.
Further, the volume of the first airbag 10 is half of the volume of the second airbag 11.
Further, the water inlet pipe 6 is communicated with the first air bag 10, and the water outlet pipe 7 is communicated with the second air bag 11.
Further, the flow direction of the one-way valve 9 is the direction from the first pump chamber 3 to the second pump chamber 4.
Furthermore, one end of the air pipe 8 in the length direction is arranged in the first pump cavity 3, and the other end of the air pipe penetrates through the interlayer 2, the second pump cavity 4 and the inner end wall of the pump shell 1 to extend out.
Furthermore, air holes are formed in the first pump cavity 3 and the second pump cavity 4 and are positioned on the air pipe 8.
Further, the pore diameter of the air hole on the air pipe 8 in the first pump chamber 3 is larger than that of the air hole on the air pipe 8 in the second pump chamber 4.
The working principle is as follows: the air pipe is externally connected with an air compressor to realize the introduction or discharge of air in the pump shell. The air compressor operates to continuously discharge air in the pump shell, the air pressure in the pump shell is reduced, and the first air bag and the second air bag are gradually filled with underground water. Air is constantly leading in the pump case, and because of the gas pocket aperture on the trachea in first pump chamber is greater than the gas pocket aperture on the trachea in the second pump chamber, first gasbag is compressed earlier, and groundwater is compressed to the second gasbag in the first gasbag to discharge through the outlet pipe. After the underground water in the first air bag is transmitted, the pressure of the gas outside the second air bag is gradually increased, the underground water in the second air bag can be discharged through the water outlet pipe, and the cooperative work of the large air bag and the small air bag is realized. After the groundwater transmission among first gasbag, the second gasbag finished, reduced the gas pressure in the pump case through air compressor, passed through the inlet tube suction to the gasbag to groundwater, because of the gas pocket aperture on the trachea in the first pump chamber is greater than the gas pocket aperture on the trachea in the second pump chamber, the gas pressure drop is very fast in the first pump chamber, and first gasbag is preferably full of by groundwater. After the first air bag is filled with the underground water, the air pressure in the second pump cavity is gradually reduced, and the underground water is filled in the second air bag through the first air bag and the communicating pipe.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (8)
1. The utility model provides a two gasbag pumps are used in groundwater sample, includes pump case (1), its characterized in that, pump case (1) inner is equipped with interlayer (2), interlayer (2) will first pump chamber (3) and second pump chamber (4) are split into to pump case (1) inner chamber, all be equipped with the gasbag in first pump chamber (3), second pump chamber (4), be equipped with communicating pipe (5) between the gasbag, two gasbag pump intake end is connected with inlet tube (6), the play water end is connected with outlet pipe (7), trachea (8) have been inserted in pump case (1), all be equipped with check valve (9) in communicating pipe (5), inlet tube (6), outlet pipe (7).
2. A dual bladder pump for sampling groundwater according to claim 1, wherein: the air bags comprise a first air bag (10) arranged in the first pump cavity (3) and a second air bag (11) arranged in the second pump cavity (4).
3. A dual bladder pump for sampling groundwater according to claim 2, wherein: the volume of the first air bag (10) is half of the volume of the second air bag (11).
4. A dual bladder pump for sampling groundwater according to claim 2, wherein: the water inlet pipe (6) is communicated with the first air bag (10), and the water outlet pipe (7) is communicated with the second air bag (11).
5. A dual bladder pump for sampling groundwater according to claim 1, wherein: the flow guide directions of the one-way valves (9) are the directions from the first pump cavity (3) to the second pump cavity (4).
6. A dual bladder pump for sampling groundwater according to claim 1, wherein: one end of the air pipe (8) in the length direction is arranged in the first pump cavity (3), and the other end of the air pipe penetrates through the interlayer (2), the second pump cavity (4) and the inner end wall of the pump shell (1) to extend out.
7. A dual bladder pump for sampling groundwater according to claim 6, wherein: the air holes are formed in the first pump cavity (3) and the second pump cavity (4) and located on the air pipe (8).
8. A dual bladder pump for sampling groundwater according to claim 7, wherein: the pore diameter of the air hole on the air pipe (8) in the first pump cavity (3) is larger than that of the air hole on the air pipe (8) in the second pump cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662727.4U CN216695701U (en) | 2021-11-02 | 2021-11-02 | Double-air-bag pump for underground water sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662727.4U CN216695701U (en) | 2021-11-02 | 2021-11-02 | Double-air-bag pump for underground water sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216695701U true CN216695701U (en) | 2022-06-07 |
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ID=81832273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122662727.4U Active CN216695701U (en) | 2021-11-02 | 2021-11-02 | Double-air-bag pump for underground water sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216695701U (en) |
-
2021
- 2021-11-02 CN CN202122662727.4U patent/CN216695701U/en active Active
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