CN202661303U - Simple quick negative pressure sampler - Google Patents
Simple quick negative pressure sampler Download PDFInfo
- Publication number
- CN202661303U CN202661303U CN 201220363857 CN201220363857U CN202661303U CN 202661303 U CN202661303 U CN 202661303U CN 201220363857 CN201220363857 CN 201220363857 CN 201220363857 U CN201220363857 U CN 201220363857U CN 202661303 U CN202661303 U CN 202661303U
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- Prior art keywords
- gas
- pipe
- port
- negative pressure
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- Expired - Fee Related
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Abstract
The utility model discloses a simple quick negative pressure sampler, which is characterized by being provided with a gas inlet pipe, a gas outlet pipe and a gas suction cylinder, wherein the tail end of the gas inlet pipe is communicated with a gas measuring nozzle in a drainage pipeline, and the front end of the gas inlet pipe is communicated with a first port of a tee pipe; a gas inlet one-way valve is arranged in a gas inlet pipe pipeline; the front end of the gas outlet pipe is communicated with a gas sample bag, and the tail end of the gas outlet pipe is communicated with a second port of the tee pipe; a one-way valve is arranged in a gas outlet pipe pipeline; and a gas suction nozzle of the gas suction cylinder is communicated with a third port of the tee pipe through a gas suction rubber pipe. The simple quick negative pressure sampler has the advantages of high airtightness, capability of guaranteeing gas sample quality, simple, quick and time and labor-saving sampling process and capability of greatly relieving the labor intensity of personnel.
Description
Technical field
The utility model relates to a kind of sampler, more specifically says to be applied in the sampler to taking a sample with the extraction pipeline of negative pressure in the colliery.
Background technology
Along with the increasing of pit mining degree, large, the arduous task of control coal spontaneous combustion workload.The many factors that causes spontaneous combustion of coal, especially under the gas control theory of " take out afterwards first and adopt ", mash gas extraction is the Main Means of present stage administering gas, the construction of extraction borehole and extraction, so that control spontaneous combustion of coal firer does more arduous, so the fire prevention prediction of carrying out extraction borehole also is very important in a fireproofing aspect, because extraction borehole quantity is many, most of boring negative pressure is large, from large with taking out gas sample (using infrared chromatograph to analyze) difficulty the extraction borehole of negative pressure, simultaneously, because sampling spot is many, sampling amount is large, the hand sampling mode is so that running program is loaded down with trivial details, and labor strength is very large, is subjected to the impact of negative pressure, the gas sample amount of each pump bowl sampling is less, and gas leakage causes gas sample difficult quality to be guaranteed easily.
Summary of the invention
The utility model is for avoiding the existing weak point of above-mentioned prior art, a kind of simple and fast negative pressure sampler is provided, to guarantee gas sample quality, lower labor strength, making more fast and simple, the accurate and effective of sampling work.
The utility model is that the technical solution problem adopts following technical scheme:
The design feature of the utility model simple and fast negative pressure sampler is to arrange:
One draft tube, its tail end is connected with survey valve in the extraction pipeline, and its front end is connected with the first port of three-way pipe, in described draft tube pipeline breather check valve is set;
One escape pipe, its front end is connected with gas sample bag, and its tail end is connected with the second port of three-way pipe, in described escape pipe pipeline outgassing nonreturn valve is set;
One pump bowl, its air exhaust nozzle is connected with the 3rd port of three-way pipe by the sebific duct of bleeding.
The utility model passes through the back and forth piston of push-and-pull pump bowl, and the gas sample can enter gas sample bag under the effect of retaining valve, finally finish the sampling operation.Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model impermeability is good, has guaranteed gas sample quality;
2, only need back and forth the push-and-pull pump bowl to get final product in the utility model sampling process, it is simple, quick, time saving and energy saving to take a sample, and has greatly alleviated personnel labor intensity; It is simple in structure, and cost is low, remarkable in economical benefits.
Description of drawings
Fig. 1 is the utility model structural representation.
Number in the figure: 2 three-way pipes; 3 pump bowls; 4 draft tube; 5 escape pipes; 6 sebific ducts of bleeding; 11 breather check valves; 12 outgassing nonreturn valves.
Embodiment
Referring to Fig. 1, the version of simple and fast negative pressure sampler is to arrange in the present embodiment:
One draft tube 4, its tail end is connected with survey valve in the extraction pipeline, and its front end is connected with the first port of three-way pipe 2, and breather check valve 11 is set in the pipeline of draft tube 4;
One escape pipe 5, its front end is connected with gas sample bag, and its tail end is connected with the second port of three-way pipe 2, and outgassing nonreturn valve 12 is set in the pipeline of escape pipe 5;
One pump bowl 3, its air exhaust nozzle is connected with the 3rd port of three-way pipe 2 by the sebific duct 6 of bleeding.
In the implementation, draft tube 4 and escape pipe 5 all adopt the rubber flexible pipe, breather check valve 11 and outgassing nonreturn valve 12 are to be that the middle part of the rubber tube of 5mm arranges a circular rubber valve at diameter, the size of rubber valve is slightly larger than rubber tube diameter, can be with the rubber tube shutoff, when pump bowl was air-breathing, the rubber valve was affected in opened condition by negative pressure in the rubber tube, otherwise the rubber valve cuts out, and plays the effect that makes the air-flow uniflux; Three-way pipe 2 is that diameter is the copper pipe of 5mm.
When the pulling pump bowl, the gas sample enters pump bowl by draft tube and breather check valve; Promote subsequently pump bowl, the gas sample that then extracts in the pump bowl is admitted in the gas sample bag by outgassing nonreturn valve, whole process Simple fast, because the impermeability of device is good, guaranteed the authenticity of gas sample, because the simplification of operating process has alleviated worker's labour intensity to a great extent.
Claims (1)
1. simple and fast negative pressure sampler is characterized in that arranging:
One draft tube (4), its tail end is connected with survey valve in the extraction pipeline, and its front end is connected with the first port of three-way pipe (2), and breather check valve (11) is set in the pipeline of described draft tube;
One escape pipe (5), its front end is connected with gas sample bag, and its tail end is connected with the second port of three-way pipe (2), and outgassing nonreturn valve (12) is set in the pipeline of described escape pipe;
One pump bowl (3), its air exhaust nozzle is connected by the 3rd port of the sebific duct of bleeding (6) with three-way pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363857 CN202661303U (en) | 2012-07-25 | 2012-07-25 | Simple quick negative pressure sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363857 CN202661303U (en) | 2012-07-25 | 2012-07-25 | Simple quick negative pressure sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661303U true CN202661303U (en) | 2013-01-09 |
Family
ID=47456203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220363857 Expired - Fee Related CN202661303U (en) | 2012-07-25 | 2012-07-25 | Simple quick negative pressure sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661303U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266883A (en) * | 2014-10-15 | 2015-01-07 | 李尚国 | Portable manual gas sampling cylinder |
| CN105758681A (en) * | 2016-05-03 | 2016-07-13 | 国网山东省电力公司青州市供电公司 | Gas sample collector |
| CN116584372A (en) * | 2023-06-16 | 2023-08-15 | 山西农业大学经济作物研究所 | Walnut breeding device and method |
| CN116584372B (en) * | 2023-06-16 | 2024-05-17 | 山西农业大学经济作物研究所 | Walnut breeding device and method |
-
2012
- 2012-07-25 CN CN 201220363857 patent/CN202661303U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266883A (en) * | 2014-10-15 | 2015-01-07 | 李尚国 | Portable manual gas sampling cylinder |
| CN105758681A (en) * | 2016-05-03 | 2016-07-13 | 国网山东省电力公司青州市供电公司 | Gas sample collector |
| CN116584372A (en) * | 2023-06-16 | 2023-08-15 | 山西农业大学经济作物研究所 | Walnut breeding device and method |
| CN116584372B (en) * | 2023-06-16 | 2024-05-17 | 山西农业大学经济作物研究所 | Walnut breeding device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20180725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |