CN207351766U - It is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus - Google Patents
It is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus Download PDFInfo
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- CN207351766U CN207351766U CN201721338025.8U CN201721338025U CN207351766U CN 207351766 U CN207351766 U CN 207351766U CN 201721338025 U CN201721338025 U CN 201721338025U CN 207351766 U CN207351766 U CN 207351766U
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- test chamber
- fuel gas
- sampling apparatus
- leakage detection
- gas pipeline
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Abstract
The utility model disclose it is a kind of removably descend fuel gas pipeline leakage detect and sampling apparatus, it includes test chamber, the sampling cavity being connected with the test chamber by the first Manual-control one-way valve, pipeline is provided with the port of the test chamber, the filter core of filtering soil impurity and liquid is arranged with the pipeline, the manual pumping pressue device with being connected inside the test chamber is additionally provided with the test chamber, exhaust outlet is provided with the end face of the test chamber.The utility model detection efficiency is high, has the function of to realize gas sampling while gas leakage point is found, the test problems for solving difficult gas；And can coordinate with various types of combustion gas survey meters, applicability is wide.
Description
【Technical field】
The utility model belongs to coal gas detection technical field, removably descends fuel gas pipeline leakage to examine more particularly to a kind of
Survey and sampling apparatus.
【Background technology】
Underground gas pipeline is required for carrying out maintenance inspection every year, predominantly detects with the presence or absence of leakage phenomenon.The prior art
In, when running into gas leakage situation, punched along gas pipeline in the place that may be leaked, then with combustion gas leak detector
Feeler lever detect whether exist leakage.Due to the detector feeler lever that underground soil property complex inserts in the hole be easily accessible soil or
Liquid and hinder to alter in combustion gas, influence testing result, and damage detector；In addition, the process and underground gas sampling process compared with
To be similar, gas leakage detection in the prior art is independently carried out with gas sampling, there are operation repetition, wasting manpower and material resources
The problem of.
Therefore, it is necessary to provide, a kind of new removably descend fuel gas pipeline leakage to detect above-mentioned to solve with sampling apparatus
Problem.
【Utility model content】
The main purpose of the utility model is that offer is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus,
Detection efficiency is high, has the function that to protect instrument, and realize gas sampling function while gas leakage point is found.
The utility model is achieved through the following technical solutions above-mentioned purpose：It is a kind of removably to descend fuel gas pipeline leakage to detect
With sampling apparatus, it includes test chamber, the sampling cavity being connected with the test chamber by the first Manual-control one-way valve, described
Pipeline is provided with the port of test chamber, the filter core of filtering soil impurity and liquid is arranged with the pipeline, it is described
The manual pumping pressue device with being connected inside the test chamber, one end of the test chamber are additionally provided with test chamber
Exhaust outlet is provided with face.
Further, the afterbody port of the sampling cavity is provided with the second Manual-control one-way valve.
Further, it is provided with filter screen at the port of the pipeline.
Further, the test chamber and the sampling cavity are flexible container bag.
Further, the distal outer surface of the pipeline is provided with helicitic texture, is connected through a screw thread that to be provided with first close
Capping.
Further, the exhaust ports are provided with the second sealing cover for sealing or turning on the exhaust outlet.
Further, second sealing cover is fixedly connected with a rotation handle.
Further, the exhaust outlet is arranged to tubular form, and has been connected through a screw thread in the tubular distal outer surface
Second sealing cover.
Compared with prior art, the utility model is a kind of removably descends fuel gas pipeline leakage detection to have with sampling apparatus
Beneficial effect is：By setting test chamber and combining pumping pressue device manually, quickly the gas of underground can be extracted into
In test chamber, detection efficiency is substantially increased, and can coordinate with the combustion gas survey meter of all types of models and detect, applicability
Extensively；By being provided with the pipeline of filter core, line clogging or water blocking problem on the one hand can be prevented, on the other hand, can
Soil impurity and liquid are filtered out, prevents liquid from entering in detector, protects detector, improves detection efficiency；Pass through
Sampling cavity is set, by the gas collection that underground is extracted into sampling cavity, when running into unknown gas, will can be collected into
Sample gas is used for other detection devices, so as to judge gas classification rapidly, improves disposing capacity.
【Brief description of the drawings】
Fig. 1 is the structure diagram of the utility model embodiment；
Digital representation in figure：
100 removably descend fuel gas pipeline leakage detection and sampling apparatus；1 test chamber；2 first Manual-control one-way valves；3 adopt
Sample cavity；4 pipelines；5 filter cores；6 first sealing covers；7 second sealing covers；8 are evacuated pressue device manually；9 second is manual single
To valve；10 exhaust outlets.
【Embodiment】
Embodiment：
Fig. 1 is refer to, for the present embodiment removably to descend fuel gas pipeline leakage detection and sampling apparatus 100, it includes inspection
Cavity 1, the sampling cavity 3 that is connected with test chamber 1 by the first Manual-control one-way valve 2 are surveyed, is provided with the port of test chamber 1
Pipeline 4, the filter core 5 of filtering soil impurity and liquid is provided with pipeline 4, and filter screen (figure is provided with the port of pipeline 4
In do not indicate), prevent soil or other impurities from entering in pipeline 4, be additionally provided with test chamber 1 with connecting inside test chamber 1
Logical manual pumping pressue device 8, the afterbody port of sampling cavity 3 is provided with the second Manual-control one-way valve 9.Test chamber 1 is with adopting
Sample cavity 3 is flexible container bag.
The distal outer surface of pipeline 4 is provided with helicitic texture, is connected through a screw thread and is provided with the first sealing cover 6, works as detection
During, first sealing cover 6 is removed；After detection, first sealing cover 6 is installed, to be formed
Seal cavity.
In order to improve detection efficiency, the volume of test chamber 1 should be smaller as far as possible.Sampling 3 end set of cavity has
Second controlled one-way valve 9, after the completion of, the second controlled one-way valve 9 is opened, and is by sample gas extraction using vacuum pump
Can.
Exhaust outlet 10 is provided with the end face of test chamber 1, seals or turn on the second sealing cover 7 of exhaust outlet 10.This
In embodiment, the second sealing cover 7 is fixedly connected with a rotation handle, by rotating rotation of the handle realization to the second sealing cover 7
Turn driving, so that the second sealing cover 7 is changed in the case where blocking or turning on 10 two states of exhaust outlet.In other embodiments,
Exhaust outlet 10 can be set to tubular form, and is threadedly coupled in the tubular distal outer surface by screw thread with the second sealing cover 7, rise
To the effect for sealing or turning on exhaust outlet 10.Exhaust outlet 10, which is mainly used for combustion gas survey meter, carries out the gas in test chamber 1
Detection.
Negative pressure can be formed in test chamber 1 by being manually evacuated the pumping of pressue device 8, and the combustion gas of underground is pumped into
In test chamber 1；In addition, manually pumping pressue device 8 pressurizes, the air in test chamber 1 can be driven to sampling cavity
Gone in body 3.It is drawn into 1 internal procedure of test chamber in underground gas, soil impurity, liquid is carried out by filter core 5
Filtering.Filter core 5 is installed in a container being fixed on pipeline 4, which connects with pipeline 4, which is set
There is shutter door (not indicated in figure), by opening the shutter door, in that context it may be convenient to take out filter core 5, cleaned or replaced.
It is negative pressure state in sampling cavity 3 under original state；When in use, 4 one end of pipeline is inserted into first and beaten
In good hole；The gas at measuring point to be checked is pumped into test chamber 1 using manual pumping pressue device 8, at this time, opens the
Two sealing covers 7, coal gas detection is carried out with reference to combustion gas survey meter at exhaust outlet 10, if combustion gas survey meter testing result is shown herein
Test point is then leakage point herein there are leakage phenomenon；The gas being collected at leakage point is squeezed using pumping pressue device 8 manually
Go out test chamber 1；If result can not judge, and testing staff can not distinguish gas in test chamber 1, then by pipeline 4 from pipe
Extracted on road, seal 4 port of pipeline with the first sealing cover 6, close the second sealing cover 7, open the first Manual-control one-way valve 2, utilize
The combustion gas in test chamber 1 is squeezed into sampling cavity 3 by pumping pressue device 8 manually, completes underground gas sampling.
The present embodiment is removably to descend fuel gas pipeline leakage detection and the beneficial effect of sampling apparatus 100 to be：Pass through
Test chamber is set and combines pumping pressue device manually, quickly the gas of underground can be extracted into test chamber, significantly
Detection efficiency is improved, and can coordinate with the combustion gas survey meter of all types of models and detect, applicability is wide；By being provided with
The pipeline of filter core is filtered, on the one hand can prevent line clogging or water blocking problem, on the other hand, soil impurity and liquid can be filtered out
Body, prevents liquid from entering in test chamber and damaging detector, plays the protective effect to detector；Sampled by setting
Cavity, by gas collection that is being beyond recognition on the spot or having a question into sampling cavity, realizes that underground is difficult or unknown gas
Sampling operation, so that other detection devices use, so as to rapidly judge gas classification, when improving disposal ability and processing
Effect property.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (8)
1. a kind of removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：It includes test chamber and institute
The sampling cavity that test chamber is connected by the first Manual-control one-way valve is stated, is provided with pipeline at the port of the test chamber, institute
The filter core that filtering soil impurity and liquid are arranged with pipeline is stated, is additionally provided with and the test chamber on the test chamber
The manual of internal portion's connection is evacuated pressue device, and exhaust outlet is provided with the end face of the test chamber.
2. as claimed in claim 1 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：It is described to adopt
The afterbody port of sample cavity is provided with the second Manual-control one-way valve.
3. as claimed in claim 1 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：The pipe
Filter screen is provided with the port in road.
4. as claimed in claim 1 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：The inspection
It is flexible container bag that cavity, which is surveyed, with the sampling cavity.
5. as claimed in claim 1 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：The pipe
The distal outer surface in road is provided with helicitic texture, is connected through a screw thread and is provided with the first sealing cover.
6. as claimed in claim 1 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：The row
The second sealing cover for sealing or turning on the exhaust outlet is provided with gas port.
7. as claimed in claim 6 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：Described
Two sealing covers are fixedly connected with a rotation handle.
8. as claimed in claim 6 removably descend fuel gas pipeline leakage detection and sampling apparatus, it is characterised in that：The row
Gas port is arranged to tubular form, and has been connected through a screw thread the second sealing cover in the tubular distal outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338025.8U CN207351766U (en) | 2017-10-18 | 2017-10-18 | It is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338025.8U CN207351766U (en) | 2017-10-18 | 2017-10-18 | It is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207351766U true CN207351766U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721338025.8U Active CN207351766U (en) | 2017-10-18 | 2017-10-18 | It is a kind of removably to descend fuel gas pipeline leakage detection and sampling apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319356A (en) * | 2019-07-26 | 2019-10-11 | 中石化川气东送天然气管道有限公司 | A kind of gas pipeline leakage rapid detection system |
| CN110967146A (en) * | 2019-12-24 | 2020-04-07 | 王毛元 | Special inflator for pipeline leakage diffusion experiment |
| CN114893730A (en) * | 2022-05-30 | 2022-08-12 | 北京市燃气集团有限责任公司 | Leakage early warning detection method and system for indoor gas system |
-
2017
- 2017-10-18 CN CN201721338025.8U patent/CN207351766U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319356A (en) * | 2019-07-26 | 2019-10-11 | 中石化川气东送天然气管道有限公司 | A kind of gas pipeline leakage rapid detection system |
| CN110967146A (en) * | 2019-12-24 | 2020-04-07 | 王毛元 | Special inflator for pipeline leakage diffusion experiment |
| CN114893730A (en) * | 2022-05-30 | 2022-08-12 | 北京市燃气集团有限责任公司 | Leakage early warning detection method and system for indoor gas system |
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