CN214121733U - High-precision double-gas-path sampler - Google Patents
High-precision double-gas-path sampler Download PDFInfo
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- CN214121733U CN214121733U CN202023164897.1U CN202023164897U CN214121733U CN 214121733 U CN214121733 U CN 214121733U CN 202023164897 U CN202023164897 U CN 202023164897U CN 214121733 U CN214121733 U CN 214121733U
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Abstract
The utility model provides a high-precision double-gas-circuit sampler, the surface of a sampling shell is provided with a control panel and a display screen, the outer parts of two sides of the sampling shell are respectively communicated with a first sampling port and a second sampling port, the first sampling port and the second sampling port respectively extend into the sampling shell through a first vent pipeline and a second vent pipeline, the first air duct and the second air duct are provided with flow meters, the end parts of the first air duct and the second air duct are respectively communicated with the first absorption bottle and the second absorption bottle, the end part of the anti-backflow pipe is respectively communicated with the first absorption bottle and the first air duct, the anti-falling suction pipe is internally provided with a limiting part, the floating ball is arranged inside the anti-falling suction pipe and is positioned below the limiting part, the bottom of the anti-falling suction pipe is inserted into the absorption liquid, and a plurality of air outlet holes are formed in the two sides of the anti-falling suction pipe. The utility model discloses effectively avoid the absorption liquid suck-back.
Description
Technical Field
The utility model relates to a sample thief technical field especially relates to a two gas circuit sample samplers of high accuracy.
Background
The atmospheric sampling is an important ring of occupational health monitoring and environment monitoring processes, the stability and accuracy of the flow of an atmospheric sampling instrument determine whether the sampling result is accurate, and after the existing commonly-used sampling instrument diaphragm pump stops working, the interior of a sampling pipe easily sucks absorption liquid backwards, so that the subsequent detection and analysis of the absorption liquid are influenced. To this the utility model provides a double-circuit atmospheric sampling ware can realize constant temperature function and sampling flow control function simultaneously to ensure the accuracy nature and the reliability of sampling.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a two gas circuit sample thief of high accuracy to after solving the sample thief diaphragm pump stop work that uses always at present, the inside of sampling pipe is the suck-back absorption liquid very easily, influences the problem of follow-up absorption liquid's detection and analysis.
In order to solve the technical problem, the utility model provides a high-precision double-gas-circuit sampler, which comprises a sampling shell, a first sampling port and a second sampling port, wherein the surface of the sampling shell is provided with a control panel and a display screen, the outer parts of the two sides of the sampling shell are respectively communicated with the first sampling port and the second sampling port, the first sampling port and the second sampling port respectively extend into the sampling shell through a first vent pipe and a second vent pipe, flowmeters are arranged on the first vent pipe and the second vent pipe, the end parts of the first vent pipe and the second vent pipe are respectively communicated with a first absorption bottle and a second absorption bottle, the bottoms of the first absorption bottle and the second absorption bottle are respectively communicated with a gas outlet pipe which is communicated with a diaphragm pump, the inner part of the first absorption bottle is provided with a falling-proof absorption liquid, and a suction piece is arranged between the first absorption bottle and the first vent pipe, the anti-suck-back piece comprises an anti-suck-back tube, a floating ball and a limiting part, the end part of the anti-suck-back tube is communicated with the first absorption bottle and the first ventilation pipeline respectively, the limiting part is arranged inside the anti-suck-back tube, the floating ball is arranged inside the anti-suck-back tube and is located below the limiting part, and a plurality of air outlet holes are formed in the two sides of the anti-suck-back tube, wherein the bottom of the anti-suck-back tube is inserted into the absorption liquid.
Preferably, the surface of the sampling shell is provided with a flow regulating valve, and the flow regulating valve is electrically connected with the control panel.
Preferably, the middle part of the limiting part is coaxially provided with a tapered hole with a narrow upper part and a wide lower part, and the diameter length of the floating ball is longer than that of the top of the tapered hole.
Preferably, a handle is arranged at the top of the sampling shell.
Preferably, the bottom of sampling shell is equipped with the battery case just one side of battery case is equipped with the socket that charges, the battery case with charge socket electric connection.
Compared with the prior art, the utility model provides a pair of two gas circuit samplers of high accuracy has following beneficial effect: the utility model is provided with a sampling shell, the surface of the sampling shell is provided with a control panel, a first sampling port and a second sampling port on two sides of the sampling shell extend into the sampling shell through a first vent pipe and a second vent pipe respectively, the first vent pipe and the second vent pipe are respectively communicated with a first absorption bottle and a second absorption bottle, the bottoms of the first absorption bottle and the second absorption bottle are respectively communicated with a gas outlet pipe and the gas outlet pipe is communicated with a diaphragm pump, the diaphragm pump works to absorb the air from the outside and then the air enters the first absorption bottle and the second absorption bottle, the end part of the anti-falling suction pipe is respectively communicated with the first absorption bottle and the first vent pipe, the inner part of the anti-falling suction pipe is provided with a limit part, the floating ball is arranged in the inner part of the anti-falling suction pipe and is positioned below the limit part, the bottom of the anti-falling suction pipe is inserted into the absorption liquid and the two sides of the anti-falling suction pipe are provided with a plurality of gas outlet holes, when the diaphragm pump stops admitting air, in order to prevent that an inside absorption liquid of absorption bottle from suck-back to preventing down the suck-back in, utilize the floater to block up spacing portion, avoid the absorption liquid to flow upward, guarantee follow-up detection and measuring accuracy nature.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a high-precision dual gas path sampler provided by the present invention;
FIG. 2 is a schematic view of the internal structure shown in FIG. 1;
fig. 3 is a schematic structural view of the first absorption bottle shown in fig. 1.
Reference numbers in the figures: 1. a sampling housing; 2. a first sampling port; 3. a second sampling port; 4. a first ventilation pipeline; 5. a second air duct; 6. a flow meter; 7. a display screen; 8. a first absorption bottle; 9. a second absorption bottle; 10. an anti-backflow straw; 11. a limiting part; 12. a floating ball; 13. a tapered hole; 14. an air outlet; 15. a diaphragm pump; 16. a flow regulating valve; 17. a handle; 18. a battery case.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1, 2 and 3 in combination, a high-precision double-gas-path sampler comprises a sampling housing 1, a first sampling port 2 and a second sampling port 3, wherein a control panel and a display screen 7 are arranged on the surface of the sampling housing 1, the first sampling port 2 and the second sampling port 3 are respectively communicated with the outer portions of two sides of the sampling housing 1, the first sampling port 2 and the second sampling port 3 respectively extend into the sampling housing 1 through a first vent pipe 4 and a second vent pipe 5, flow meters 6 are arranged on the first vent pipe 4 and the second vent pipe 5, the end portions of the first vent pipe 4 and the second vent pipe 5 are respectively communicated with a first absorption bottle 8 and a second absorption bottle 9, the bottoms of the first absorption bottle 8 and the second absorption bottle 9 are respectively communicated with a gas outlet pipe, the gas outlet pipe is communicated with a diaphragm pump 15, absorption liquid is arranged in the first absorption bottle 8, and a suction piece is arranged between the first absorption bottle 8 and the first vent pipe 4, the anti-suck-back piece comprises an anti-suck-back tube 10, a floating ball 12 and a limiting portion 11, the end portion of the anti-suck-back tube 10 is communicated with a first absorption bottle 8 and a first ventilation pipeline 4 respectively, the limiting portion 11 is arranged inside the anti-suck-back tube 10, the floating ball 12 is located below the limiting portion 11, the bottom of the anti-suck-back tube 10 is inserted into absorption liquid, and a plurality of air outlet holes 14 are formed in two sides of the anti-suck-back tube 10.
In this embodiment, a flow control valve 16 is disposed on a surface of the sampling housing 1, and the flow control valve 16 is electrically connected to the control panel. The operation of the diaphragm pump 15 is easily regulated, and the air flow is regulated.
In this embodiment, a tapered hole 13 with a narrow top and a wide bottom is coaxially disposed in the middle of the limiting portion 11, and the diameter length of the floating ball 12 is longer than that of the top of the tapered hole 13. The floating ball 12 is prevented from passing through the limiting part 11, so that the floating ball 12 is arranged below the limiting part 11.
In this embodiment, the top of the sampling shell 1 is provided with a handle 17. It is convenient to bring it to the designated sampling site.
In this embodiment, the bottom of the sampling shell 1 is provided with a battery box 18, and one side of the battery box 18 is provided with a charging socket, and the battery box 18 is electrically connected with the charging socket. And supplying power to the whole device.
The working principle is as follows: the utility model is provided with a sampling shell 1, the surface of the sampling shell 1 is provided with a control panel, a first sampling port 2 and a second sampling port 3 at two sides of the sampling shell 1 extend to the inside of the sampling shell 1 through a vent pipe I4 and a vent pipe II 5 respectively, the vent pipe I4 and the vent pipe II 5 are communicated with a first absorption bottle 8 and a second absorption bottle 9 respectively, the bottoms of the first absorption bottle 8 and the second absorption bottle 9 are communicated with a vent pipe respectively and the vent pipe is communicated with a diaphragm pump 15, the external air is absorbed to enter the first absorption bottle 8 and the second absorption bottle 9 through the work of the diaphragm pump 15, the end part of a falling prevention suction pipe 10 is communicated with the first absorption bottle 8 and the vent pipe I4 respectively, the inside of the falling prevention suction pipe 10 is provided with a limit part 11, a floating ball 12 is arranged in the inside of the falling prevention suction pipe 10 and the floating ball 12 is positioned below the limit part 11, the bottom of the anti-backflow suction pipe 10 is inserted into the absorption liquid, a plurality of air outlet holes are formed in the two sides of the anti-backflow suction pipe 10, when the diaphragm pump 15 stops air inlet, in order to prevent the absorption liquid in the absorption bottle 8 from flowing back into the anti-backflow suction pipe 10, the floating ball 12 is utilized to plug the limiting portion 11, the absorption liquid is prevented from flowing upwards, and the accuracy of follow-up detection and measurement is guaranteed.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a two gas circuit samplers of high accuracy which characterized in that: the sampling device comprises a sampling shell, a first sampling port and a second sampling port, wherein a control panel and a display screen are arranged on the surface of the sampling shell, the two sides of the sampling shell are respectively communicated with the first sampling port and the second sampling port, the first sampling port and the second sampling port respectively extend into the sampling shell through a first vent pipe and a second vent pipe, flowmeters are arranged on the first vent pipe and the second vent pipe, the end parts of the first vent pipe and the second vent pipe are respectively communicated with a first absorption bottle and a second absorption bottle, the bottoms of the first absorption bottle and the second absorption bottle are respectively communicated with a gas outlet pipe, the gas outlet pipe is communicated with a diaphragm pump, absorption liquid is arranged in the first absorption bottle, a suction prevention piece is arranged between the first absorption bottle and the first vent pipe, and the suction prevention piece comprises a suction prevention pipe, a floating ball and a limiting part, the end part of the anti-falling suction pipe is communicated with the first absorption bottle and the first ventilation pipeline respectively, a limiting part is arranged inside the anti-falling suction pipe, the floating ball is arranged inside the anti-falling suction pipe and is positioned below the limiting part, the bottom of the anti-falling suction pipe is inserted into absorption liquid, and a plurality of air outlet holes are formed in two sides of the anti-falling suction pipe.
2. A high accuracy dual gas path sampler as defined in claim 1 wherein: the surface of sampling shell is equipped with flow control valve, flow control valve with control panel electric connection.
3. A high accuracy dual gas path sampler as defined in claim 1 wherein: the middle part of the limiting part is coaxially provided with a tapered hole with a narrow upper part and a wide lower part, and the diameter length of the floating ball is longer than that of the top of the tapered hole.
4. A high accuracy dual gas path sampler as defined in claim 1 wherein: the top of the sampling shell is provided with a handle.
5. A high accuracy dual gas path sampler as defined in claim 1 wherein: the bottom of sampling shell is equipped with the battery case just one side of battery case is equipped with the socket that charges, the battery case with charge socket electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164897.1U CN214121733U (en) | 2020-12-24 | 2020-12-24 | High-precision double-gas-path sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164897.1U CN214121733U (en) | 2020-12-24 | 2020-12-24 | High-precision double-gas-path sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214121733U true CN214121733U (en) | 2021-09-03 |
Family
ID=77514357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023164897.1U Active CN214121733U (en) | 2020-12-24 | 2020-12-24 | High-precision double-gas-path sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214121733U (en) |
-
2020
- 2020-12-24 CN CN202023164897.1U patent/CN214121733U/en active Active
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