Gas sampling pump

Abstract

The utility model discloses a gas sampling pump which comprises a sampling pump body, a second sampling pipeline is installed at one end of the sampling pump body, a first sampling pipeline is installed at the other end of the sampling pump body, a first connecting pipe head is arranged at the end, away from the sampling pump body, of the first sampling pipeline, and a first pressure gauge is installed at the top of the first connecting pipe head. A valve pipe mechanism is arranged at one end of the first connecting pipe head, a first three-way pipe is arranged at one end, far away from the sampling pump body, of the second sampling pipeline, a first bent pipe is arranged at one end, far away from the second sampling pipeline, of the first three-way pipe, and a sampling valve is mounted at one end, far away from the first three-way pipe, of the first bent pipe; a second bent pipe is mounted at one end, far away from the first bent pipe, of each sampling valve. According to the gas sampling pump, it is guaranteed that the gas sampling pump can continuously sample gas, the phenomenon that the gas sampling pump is blocked is reduced, the service life of the gas sampling pump is prolonged, and the gas sampling precision of the gas sampling pump is improved when the gas sampling pump is used.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas sampling technical field, concretely is gas sampling pump. BACKGROUND

[0002] In the application scene such as environmental monitoring, air quality assessment, industrial waste gas monitoring and laboratory analysis, accurate and rapid collection of gas samples is the key step to obtain reliable data, the traditional gas sampling pump has problems such as inaccurate flow control and easy to block, especially when dealing with particulate matter or high humidity gas, these problems are particularly prominent, therefore, it is particularly important to develop a new type of gas sampling pump that can overcome the above defects and improve sampling efficiency and accuracy.

[0003] Referring to the announcement number CN214660760U micro gas sampling pump, it contains: pump body, power module, power module is connected with pump body, is used to provide the intake and outlet power of sampling gas, sampling module, sampling module is connected with pump body, power module drives sampling module to carry out gas sampling, the volume of this gas sampling pump is small, but gas flow is big, especially for the sampling precision of low-speed flow gas is high, stability is high, adopts single whole valve piece, not only can effectively seal the passage of intake and outlet, and greatly saves manufacturing cost, convenient to assemble, improves sampling stability and precision, according to the above, the gas sampling pump can be better applied, but it is inconvenient for double-channel gas sampling operation, when the pipeline components of gas sampling pump are maintained, the gas sampling pump is easily in the state of stopping sampling, which often troubles the user. UTILITY MODEL CONTENT

[0004] The utility model aims at providing gas sampling pump to solve the problem that the gas sampling pump can be better applied, but it is inconvenient for double-channel gas sampling operation, when the pipeline components of gas sampling pump are maintained, the gas sampling pump is easily in the state of stopping sampling.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: gas sampling pump, including sampling pump body, one end of the sampling pump body is installed with second sampling pipeline, the other end of the sampling pump body is installed with first sampling pipeline, the one end of first sampling pipeline away from sampling pump body is equipped with first connecting pipe head, the top of first connecting pipe head is installed with first pressure meter, one end of first connecting pipe head is equipped with valve pipe mechanism, the one end of second sampling pipeline away from sampling pump body is equipped with first three -way pipe, the one end of first three -way pipe away from second sampling pipeline is equipped with first elbow pipe, the one end of first elbow pipe away from first three -way pipe is installed with sampling valve, the one end of sampling valve away from first elbow pipe is installed with second elbow pipe, the second elbow pipe is installed with second three -way pipe, the one end of second three -way pipe away from second elbow pipe is equipped with third sampling pipeline, the one side of third sampling pipeline top is installed with second pressure meter, the one end of third sampling pipeline away from second three -way pipe is equipped with pipe clamp.

[0006] Preferably, the valve pipe mechanism comprises a valve pipe body and a positioning seat, one end of the first connecting pipe head away from the first sampling pipeline is installed with the valve pipe body, the outer wall of one side of the valve pipe body is provided with the positioning seat, the gas sampling is flowed into the first sampling pipeline by the setting of the valve pipe body.

[0007] Preferably, the valve pipe mechanism comprises a telescopic driving piece and a shaft seat, the inner wall of one side of the positioning seat is rotatably installed with the telescopic driving piece, the outer wall of the valve pipe body of one side of the positioning seat is provided with the shaft seat, the telescopic driving piece is arranged to rotate through the linkage arm driving shaft rod.

[0008] Preferably, the valve pipe mechanism comprises a linkage arm and a shaft rod, one end of the telescopic driving piece away from the positioning seat is rotatably installed with the linkage arm, one end of the linkage arm away from the telescopic driving piece is provided with the shaft rod, the shaft rod away from the linkage arm extends to the inside of the valve pipe body, the pipe core is arranged by the setting of the shaft rod.

[0009] Preferably, the valve pipe mechanism comprises a pipe core, the outer wall of the shaft rod in the valve pipe body is provided with the pipe core, the outer wall of the pipe core touches the inner wall of the valve pipe body, the opening and closing size of the valve pipe body is adjusted by the setting of the pipe core.

[0010] Preferably, the top end of the third sampling pipeline of one side of the second pressure meter is provided with a second backflushing pipeline, the top end of the second backflushing pipeline is installed with a backflushing valve, one end of the backflushing valve away from the second backflushing pipeline is installed with a first backflushing pipeline, the gas sampling pump is backflushed and cleaned by the setting of the first backflushing pipeline and other related components.

[0011] Compared with the prior art, the gas sampling pump not only guarantees that the gas sampling pump can continuously sample gas, but also reduces the phenomenon of blockage of the gas sampling pump, prolongs the service life of the gas sampling pump, and improves the sampling accuracy of the gas sampling pump when in use.

[0012] (1) By installing two first and second elbows at both ends of the first and second three-way pipes, and arranging a sampling valve between the first and second elbows to control the opening and closing of the valve, the gas sampling pump has the purpose of double-channel sequential sampling. When a group of channels is maintained, the two ends of the group of channels are closed, and the other group of channels can continue to sample gas, thereby guaranteeing that the gas sampling pump can continuously sample gas.

[0013] (2) By closing the gas outlet pipe connected by the pipe clamp, then opening the backflushing valve, and injecting part of the clean air into the third sampling pipe through the first and second backflushing pipes, the part of the air flows into the second sampling pipe through the first elbow, and is sequentially discharged from the sampling pump body, the first sampling pipe, the first connecting pipe head, and the valve pipe body, thereby effectively removing the accumulated particles in the gas sampling pump by reverse blowing and cleaning, reducing the phenomenon of blockage of the gas sampling pump, and prolonging the service life of the gas sampling pump.

[0014] (3) By rotating the shaft rod through the telescopic driving member and the linkage arm driving shaft, the shaft rod drives the pipe core to rotate in the interior of the valve pipe body, so that the opening and closing size of the valve pipe body can be adjusted as needed to control the sampling rate of the gas, thereby improving the sampling accuracy of the gas sampling pump when in use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a first elbow and second elbow structure schematic diagram of the utility model;

[0017] Figure 3 It is a valve pipe mechanism enlarged structure schematic diagram of the utility model;

[0018] Figure 4 It is a valve pipe mechanism enlarged structure schematic diagram of the utility model; Figure 2 It is an enlarged structure schematic diagram of position A in the utility model.

[0019] In the figure: 1, sampling pump body; 2, first sampling pipeline; 3, first connecting pipe head; 4, first pressure meter; 5, valve pipe mechanism; 501, valve pipe body; 502, positioning seat; 503, telescopic driving part; 504, linkage arm; 505, shaft seat; 506, shaft rod; 507, pipe core; 6, second sampling pipeline; 7, first three-way pipe; 8, first elbow pipe; 9, sampling valve; 10, second elbow pipe; 11, second three-way pipe; 12, third sampling pipeline; 13, second pressure meter; 14, pipe clamp; 15, second backwashing pipeline; 16, backwashing valve; 17, first backwashing pipeline. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 An embodiment provided by the utility model: gas sampling pump, including sampling pump body 1, the one end of sampling pump body 1 is equipped with second sampling pipeline 6, the other end of sampling pump body 1 is equipped with first sampling pipeline 2, and the one end of first sampling pipeline 2 away from sampling pump body 1 is equipped with first connecting pipe head 3, and the top of first connecting pipe head 3 is equipped with first pressure meter 4, and the one end of first connecting pipe head 3 is equipped with valve pipe mechanism 5, and valve pipe mechanism 5 includes valve pipe body 501 and positioning seat 502, and the one end of first connecting pipe head 3 away from first sampling pipeline 2 is equipped with valve pipe body 501, and the outer wall on the side of valve pipe body 501 is equipped with positioning seat 502;

[0022] When using, the setting of valve pipe body 501 is convenient for gas sampling to flow into first sampling pipeline 2;

[0023] Valve pipe mechanism 5 includes telescopic driving part 503 and shaft seat 505, and the inner wall on the side of positioning seat 502 is rotatably equipped with telescopic driving part 503, and the outer wall on the side of valve pipe body 501 of positioning seat 502 is equipped with shaft seat 505;

[0024] When using, the setting of telescopic driving part 503 is convenient for driving shaft rod 506 to rotate through linkage arm 504;

[0025] Valve pipe mechanism 5 includes linkage arm 504 and shaft rod 506, and the one end of telescopic driving part 503 away from positioning seat 502 is rotatably equipped with linkage arm 504, and the one end of linkage arm 504 away from telescopic driving part 503 is equipped with shaft rod 506, and the one end of shaft rod 506 away from linkage arm 504 extends to the inside of valve pipe body 501;

[0026] In use, the shaft 506 is arranged to facilitate the installation of the tube core 507;

[0027] The valve pipe mechanism 5 comprises a tube core 507, and the outer wall of the shaft 506 inside the valve pipe body 501 is provided with the tube core 507, and the outer wall of the tube core 507 is in contact with the inner wall of the valve pipe body 501;

[0028] In use, the tube core 507 is arranged to adjust the opening and closing size of the valve pipe body 501;

[0029] The second sampling pipe 6 is provided with a first three-way pipe 7 at one end away from the sampling pump body 1, the first three-way pipe 7 is provided with a first elbow pipe 8 at one end away from the second sampling pipe 6, the first elbow pipe 8 is installed with a sampling valve 9 at one end away from the first three-way pipe 7, the sampling valve 9 is installed with a second elbow pipe 10 at one end away from the first elbow pipe 8, the second elbow pipe 10 is installed with a second three-way pipe 11, the second three-way pipe 11 is provided with a third sampling pipe 12 at one end away from the second elbow pipe 10, the second three-way pipe 11 is provided with a second pressure gauge 13 on one side of the top of the third sampling pipe 12, the second pressure gauge 13 is provided with a second backwashing pipe 15 at the top end of the third sampling pipe 12 on one side, the second backwashing pipe 15 is installed with a backwashing valve 16 at the top end, and the backwashing valve 16 is installed with a first backwashing pipe 17 at one end away from the second backwashing pipe 15;

[0030] In use, the first backwashing pipe 17 and other related components are arranged to facilitate the backwashing and cleaning operation of the gas sampling pump;

[0031] The third sampling pipe 12 is provided with a pipe clamp 14 at one end away from the second three-way pipe 11.

[0032] The embodiment of the application is used, first, the valve pipe mechanism 5 is calibrated in the area of the gas to be sampled, and the gas outlet pipeline is connected to the pipe clamp 14, then the sampling pump body 1 is started, the gas can be sucked and sampled into the second sampling pipeline 6, then discharged through the third sampling pipeline 12 and other related components by the gas outlet pipeline, to achieve the purpose of sampling the gas, through the two first elbow pipes 8 and the second elbow pipes 10 respectively installed at both ends of the first three-way pipe 7 and the second three-way pipe 11, and the sampling valve 9 arranged between the first elbow pipe 8 and the second elbow pipe 10 controls the opening and closing process, so that the gas sampling pump has the purpose of double-channel sequential sampling, when a group of channels is maintained, the two ends of the group of channels are closed, and the other group of channels can continue to sample the gas, so that the gas sampling is more flexible, and the phenomenon of sampling interruption is reduced, then the telescopic driving part 503 drives the shaft rod 506 to rotate through the linkage arm 504, so that the shaft rod 506 drives the pipe core 507 to rotate in the inside of the valve pipe body 501, that is, the opening and closing size of the valve pipe body 501 can be adjusted as needed, so as to control the sampling rate of the gas as needed, finally, the gas outlet pipeline connected by the pipe clamp 14 is closed, then the backflushing valve 16 is opened, and part of the clean air is injected into the third sampling pipeline 12 through the first backflushing pipeline 17 and the second backflushing pipeline 15, so that this part of air flows into the inside of the second sampling pipeline 6 through the first elbow pipe 8, and makes it sequentially discharge through the sampling pump body 1, the first sampling pipeline 2, the first connecting pipe head 3 and the valve pipe body 501, that is, the reverse blowing and cleaning method can effectively remove the particles accumulated in the gas sampling pump, reduce the phenomenon of blockage of the gas sampling pump, so as to complete the use of the gas sampling pump.

Claims

1. A gas sampling pump characterized by: Including sampling pump body (1), one end of sampling pump body (1) is provided with second sampling pipeline (6), the other end of sampling pump body (1) is provided with first sampling pipeline (2), the one end of first sampling pipeline (2) away from sampling pump body (1) is provided with first connecting pipe head (3), the top of first connecting pipe head (3) is provided with first pressure gauge (4), one end of first connecting pipe head (3) is provided with valve pipe mechanism (5), the one end of second sampling pipeline (6) away from sampling pump body (1) is provided with first three-way pipe (7), the one end of first three-way pipe (7) away from second sampling pipeline (6) is provided with first elbow pipe (8), the one end of first elbow pipe (8) away from first three-way pipe (7) is provided with sampling valve (9), the one end of sampling valve (9) away from first elbow pipe (8) is provided with second elbow pipe (10), second elbow pipe (10) is provided with second three-way pipe (11) between, the one end of second three-way pipe (11) away from second elbow pipe (10) is provided with third sampling pipeline (12), one side of the top of third sampling pipeline (12) is provided with second pressure gauge (13), the one end of third sampling pipeline (12) away from second three-way pipe (11) is provided with pipe clamp (14).

2. The gas sampling pump of claim 1, wherein: The valve pipe mechanism (5) includes a valve pipe body (501) and a positioning seat (502), one end of the first connecting pipe head (3) is provided with the valve pipe body (501) away from the first sampling pipeline (2), and the outer wall of one side of the valve pipe body (501) is provided with the positioning seat (502).

3. The gas sampling pump of claim 2, wherein: The valve pipe mechanism (5) includes a telescopic drive (503) and a shaft seat (505), the telescopic drive (503) is rotatably installed on the inner wall of one side of the positioning seat (502), and the outer wall of the valve pipe body (501) on one side of the positioning seat (502) is provided with the shaft seat (505).

4. The gas sampling pump of claim 3, wherein: The valve pipe mechanism (5) includes a linkage arm (504) and a shaft rod (506), one end of the telescopic drive (503) away from the positioning seat (502) is rotatably installed with the linkage arm (504), one end of the linkage arm (504) away from the telescopic drive (503) is provided with the shaft rod (506), and one end of the shaft rod (506) away from the linkage arm (504) extends to the inside of the valve pipe body (501).

5. The gas sampling pump of claim 4, wherein: The valve pipe mechanism (5) includes a tube core (507), and the outer wall of the shaft rod (506) in the valve pipe body (501) is provided with the tube core (507), and the outer wall of the tube core (507) is in contact with the inner wall of the valve pipe body (501).

6. The gas sampling pump of claim 1, wherein: The top end of the third sampling pipeline (12) on one side of the second pressure gauge (13) is provided with a second backwashing pipeline (15), the top end of the second backwashing pipeline (15) is provided with a backwashing valve (16), and one end of the backwashing valve (16) away from the second backwashing pipeline (15) is provided with a first backwashing pipeline (17).

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