CN203422251U - Negative-pressure gas detecting sampling auxiliary device - Google Patents
Negative-pressure gas detecting sampling auxiliary device Download PDFInfo
- Publication number
- CN203422251U CN203422251U CN201320515368.2U CN201320515368U CN203422251U CN 203422251 U CN203422251 U CN 203422251U CN 201320515368 U CN201320515368 U CN 201320515368U CN 203422251 U CN203422251 U CN 203422251U
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- Prior art keywords
- negative
- air pump
- pressure gas
- bleeder
- auxiliary device
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- Expired - Fee Related
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Abstract
The utility model discloses a negative-pressure gas detecting sampling auxiliary device, which belongs to the technical field of pipeline gas detecting equipment and is used for detecting negative-pressure gas in a pipeline. According to the technical scheme, the negative-pressure gas detecting sampling auxiliary device is composed of an inserted sampling pipe, a locking nut and an air pump, wherein an inner hole of the locking nut is arranged on the wall of the inserted sampling pipe in a sleeved manner; the air pump is installed on the rear part of the inserted sampling pipe; the rear part of the air pump is provided with an air pump outlet connected with a bleeder through a hose; the wall of the bleeder is provided with a bleeder sampling pipe; the inner hole of the locking nut is internally provided with a pressing flange and a seal ring. The inserted sampling pipe provided by the utility model is inserted into a negative-pressure coal gas pipeline; negative-pressure gas is pressurized by the air pump, and then is exhausted from the bleeder; the bleeder sampling pipe on the bleeder is opened, and a handheld CO or O2 analyzer is directly close to the bleeder sampling pipe; the pressurized gas directly blows a detection head of the handheld CO or O2 analyzer for detection. The negative-pressure gas detecting sampling auxiliary device provided by the utility model is simple in structure and convenient to use, and eliminates the potential safety hazard caused by the fact that qualification judgment is only based on experience without data in the process of purging a negative-pressure coal gas pipeline.
Description
Technical field
The utility model relates to a kind of auxiliary sampling device while detecting negative-pressure gas in pipeline, belongs to pipeline gas checkout equipment technical field.
Background technology
In the detection of metallurgical gases CO, O2 content, malleation pipeline in this way, the stopple coupon (gas outlet) that can directly turn on the gas-fire on pipeline, is directly adjacent to stopple coupon with hand-held CO and O2 analyser and detects, convenient and easy, safe and reliable.But in some specific occasions, as gas fired-boiler induction pipe, in boiler truce and raise steam operation, this section of gas piping just there will be negative pressure.At this moment, with CO and O2 analyser, near stopple coupon, detect, not only can not sample detection, and air also can be inhaled in pipeline, have a strong impact on igniting, furnace outage time and safe operation.Therefore there are some units just to adopt the way that increases (with nitrogen or the steam blowing) time of purging, changes the experiences such as blowing method, judge that whether the interior CO of pipeline or O2 be qualified, such method does not meet safety regulations, have serious accident potential, this is also the main cause that explosion accident appears in gas fired-boiler burner hearth and as fired fuel feed channel.Therefore, how under negative pressure condition, gas to be detected to sampling and just become problem in the urgent need to address.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of negative-pressure gas and detects auxiliary device for sampling, and this servicing unit can solve the problem that can not detect negative-pressure gas with hand-held CO or O2 analyser.
The technical scheme solving the problems of the technologies described above is:
Detect an auxiliary device for sampling, its formation comprises inserts stopple coupon, locknut, air pump, and the inner hole sleeve of locknut is contained on the tube wall that inserts stopple coupon, and air pump is arranged on the rear portion of inserting stopple coupon, and there is air pump outlet at air pump rear portion.
Above-mentioned negative-pressure gas detects auxiliary device for sampling, in described locknut endoporus, has differential and O-ring seal.
Above-mentioned negative-pressure gas detects auxiliary device for sampling, and it also has flexible pipe, exhaust stack, diffuses stopple coupon, one end of air pump outlet connecting hose, and the other end of flexible pipe connects exhaust stack, has exhaust stack stopple coupon on the tube wall of exhaust stack.
The beneficial effects of the utility model are:
Insertion stopple coupon of the present utility model inserts in negative pressure gas piping, booster air pump, negative-pressure gas is discharged to exhaust stack after air pump pressurization, open the stopple coupon that diffuses on exhaust stack, with hand-held CO or O2 analyser, be directly adjacent to and diffuse stopple coupon detection, the gas after pressurization directly blows the detection head of hand-held CO or O2 analyser can realize detection.The utility model is simple in structure, easy to use, and while having eliminated purging negative pressure gas piping, (coal gas purges nitrogen for nitrogen blowing coal gas, nitrogen blowing air) only judges qualified potential safety hazard without authentic data by rule of thumb.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use constitutional diagram of the present utility model.
In figure, mark is as follows: negative pressure gas piping 1, sample valve 2, stopple coupon 3, locknut 4, O-ring seal 5, differential 6, insert stopple coupon 7, air pump 8, air pump outlet 9, flexible pipe 10, exhaust stack 11, diffuse stopple coupon 12.
Embodiment
The utility model comprises insertion stopple coupon 7, locknut 4, O-ring seal 5, differential 6, air pump 8, flexible pipe 10, exhaust stack 11, diffuses stopple coupon 12.
In figure, show, the inner hole sleeve of locknut 4 is contained on the tube wall that inserts stopple coupon 7, in locknut 4 endoporus, there are differential 6 and O-ring seal 5, the internal thread of locknut 4 matches with the screw thread that is arranged on stopple coupon 3 ends on negative pressure gas piping 1, during use, open the sample valve 2 on negative pressure gas piping 1, will insert stopple coupon 7 and insert stopple coupon 3, locknut 4 is spun on the end of stopple coupon 3, and differential 6 and O-ring seal 5 play sealing function.
In figure, show, air pump 8 is arranged on the rear portion of inserting stopple coupon 7, and there is air pump outlet 9 at air pump 8 rear portions, and air pump exports one end of 9 connecting hoses 10, and the other end of flexible pipe 10 connects exhaust stack 11, has exhaust stack stopple coupon 12 on the tube wall of exhaust stack 11.
Using method of the present utility model is as follows:
(1), during raise steam, blowing out operation, this device is installed, and booster air pump 8 as required.While not needing to detect, negative-pressure gas is discharged to exhaust stack 11 after air pump 8 pressurization, in the time of need to detecting, open and diffuse stopple coupon 12 on exhaust stack 11, with hand-held CO or O2 analyser, be directly adjacent to and diffuse stopple coupon 12 detections, the detection head that the gas after pressurization directly blows hand-held CO or O2 analyser gets final product examinations.
(2) this device is simply light, and dismounting at any time can not dismantled after the disposable installation of exhaust stack 11, and the negative pressure place of detecting in temporary needs also can be directly with analyser test air pump outlet 9.
(3), in this device, adopt the long stopple coupon 7 that inserts, its end straight cutting negative pressure gas piping 1 center, more representative through the gas of air pump 8 sucking-offs, can guarantee the true of test data.
(4) parameters such as in this device, air pump can be selected as required, its pressure flow profile need be applicable to the requirement of test.
(5) this device is transformed into barotropic gas by negative-pressure gas, existing general hand-held CO or O2 analyser can normally use, (nitrogen blowing coal gas while having eliminated each purging negative pressure gas piping, nitrogen blowing air, coal gas purges nitrogen) only without authentic data, judge qualified potential safety hazard by rule of thumb.
Claims (3)
1. a negative-pressure gas detects auxiliary device for sampling, it is characterized in that: its formation comprises inserts stopple coupon (7), locknut (4), air pump (8), the inner hole sleeve of locknut (4) is contained on the tube wall that inserts stopple coupon (7), air pump (8) is arranged on the rear portion of inserting stopple coupon (7), and there is air pump outlet (9) at air pump (8) rear portion.
2. negative-pressure gas according to claim 1 detects auxiliary device for sampling, it is characterized in that: in described locknut (4) endoporus, have differential (6) and O-ring seal (5).
3. negative-pressure gas according to claim 2 detects auxiliary device for sampling, it is characterized in that: it also has flexible pipe (10), exhaust stack (11), diffuses stopple coupon (12), one end of air pump outlet (9) connecting hose (10), the other end of flexible pipe (10) connects exhaust stack (11), has exhaust stack stopple coupon (12) on the tube wall of exhaust stack (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515368.2U CN203422251U (en) | 2013-08-22 | 2013-08-22 | Negative-pressure gas detecting sampling auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515368.2U CN203422251U (en) | 2013-08-22 | 2013-08-22 | Negative-pressure gas detecting sampling auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422251U true CN203422251U (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515368.2U Expired - Fee Related CN203422251U (en) | 2013-08-22 | 2013-08-22 | Negative-pressure gas detecting sampling auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121448A (en) * | 2014-07-29 | 2014-10-29 | 成都国光电子仪表有限责任公司 | Discharging device used for gas pipe repairing |
| CN111047959A (en) * | 2019-12-16 | 2020-04-21 | 天津泰达滨海清洁能源集团有限公司 | Multi-air-source mixed gas experiment simulation device |
-
2013
- 2013-08-22 CN CN201320515368.2U patent/CN203422251U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121448A (en) * | 2014-07-29 | 2014-10-29 | 成都国光电子仪表有限责任公司 | Discharging device used for gas pipe repairing |
| CN111047959A (en) * | 2019-12-16 | 2020-04-21 | 天津泰达滨海清洁能源集团有限公司 | Multi-air-source mixed gas experiment simulation device |
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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: 20140205 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |