CN203299028U - Gas sampling device used for gas pipeline - Google Patents
Gas sampling device used for gas pipeline Download PDFInfo
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- CN203299028U CN203299028U CN2013202809577U CN201320280957U CN203299028U CN 203299028 U CN203299028 U CN 203299028U CN 2013202809577 U CN2013202809577 U CN 2013202809577U CN 201320280957 U CN201320280957 U CN 201320280957U CN 203299028 U CN203299028 U CN 203299028U
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- gas
- sampling
- stop valve
- flange
- seal sleeve
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Abstract
The utility model discloses a gas sampling device used for a gas pipeline, which comprises a flange base arranged on a wall of the gas pipeline, a sampling pipe, a flange seal sleeve, a stop valve, a metal filter membrane clamp and an electric heating tape, wherein the sampling pipe penetrates into the flange base and the flange seal sleeve; the front end of the sampling pipe is positioned in the gas pipeline; the flange seal sleeve is fixedly arranged on the flange base; the tail end of the sampling pipe is connected with an input end of the stop valve; an output end of the stop valve is connected with an input end of the metal filter membrane clamp; and the electric heating tape is wound in the metal filter membrane clamp. The device facilitates implementing gas sampling in the gas pipeline, overcomes the defects of the traditional sampling method, avoids potential safety hazards in a sampling process, and effectively improves the gas sampling precision.
Description
Technical field
The utility model relates to a kind of device of gas sampling for gas piping.
Background technology
At present in to gas piping when dust content of gas and gas componant sampling analysis, generally adopt on-line determination and two kinds of methods of manual mensuration, these two kinds of methods all exist different defects, and the poor anti-interference of on-line determination equipment, probe is fragile, operating cost is high, and is difficult in maintenance; Conventional manual measure that length consuming time, potential safety hazard are large, complex operation, data error be large; Sample position due to gas piping all is positioned at the malleation section simultaneously, and in pipeline, water capacity is high, pipeline pressure 0.7-3Kg/cm
2, some is even larger, and there is certain potential safety hazard in the gas sampling of traditional-handwork test, and affects sampling precision.
According to GB/T 12208-2008 artificial coal gas component and dirt content test method; when the manual gas sampling of measuring; shut down and make thief hatch; stopple coupon with filter membrane clip directly stretches into thief hatch; tested coal gas is by stopple coupon, and the filter membrane that the dirt in coal gas is placed in filter membrane clip captures, the coal gas of the total sampling of record simultaneously volume; with formula dustiness=filter membrane coal gas volume of increase weight/always sampling, obtain dust content of gas.This mensuration mode can't be for the high pressure pipeline section, and the connected mode of sampling apparatus and pipeline can't adapt to the high pressure operating mode, and leakproofness is not high, and personnel produce potential safety hazard to site work; Without heating arrangement, the sample gas volume calculates and easily produces error, because piped gas has uniform temperature mostly, in the stopple coupon of gas before arriving filter membrane clip, have certain cooling, especially in the winter time more obvious, the reduction of temperature causes the coal gas volume to reduce, and produces error; Ease for use is not strong, and the manual thief hatch of measuring needs to make to meet the requirement of sample devices specially, in a lot of situations, must utilize the chance of shutting down on the coal gas pipeline section, to get angry, and makes thief hatch.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of device of gas sampling for gas piping, utilize the convenient gas sampling of implementing in gas piping of this device, overcome the defect of traditional sampling mode, avoided the potential safety hazard of sampling process, effectively improved the gas sampling precision.
for solving the problems of the technologies described above, the utility model comprises for the gas sampling device of gas piping the flange seat of being located at the gas piping wall, stopple coupon, the flange seal sleeve pipe, stop valve, metal filtration film folder and heat tape, described stopple coupon penetrates described flange seat and flange seal sleeve pipe front end and is positioned at described gas piping, described flange seal sleeve pipe is fixed on described flange seat, described stopple coupon tail end connects described stop valve input end, described stop valve output terminal connects described metal filtration film folder input end, described heat tape is wound in described metal filtration film folder.
Further, this device also comprises gasket seal, and described gasket seal is located between described flange seat and flange seal sleeve pipe.
Further, above-mentioned stop valve is connected with the metal filtration film folder with described stopple coupon by screw thread, and described screw thread adopts stop-leak compound or the sealing of teflon material strip.
the gas sampling device that is used for gas piping due to the utility model has adopted technique scheme, be that this device comprises the flange seat of being located at the gas piping wall, stopple coupon, the flange seal sleeve pipe, stop valve, metal filtration film folder and heat tape, described stopple coupon penetrates described flange seat and flange seal sleeve pipe front end and is positioned at described gas piping, described flange seal sleeve pipe is fixed on described flange seat, described stopple coupon tail end connects described stop valve input end, described stop valve output terminal connects described metal filtration film folder input end, described heat tape is wound in described metal filtration film folder.This device is conveniently implemented the gas sampling in gas piping, has overcome the defect of traditional sampling mode, has avoided the potential safety hazard of sampling process, has effectively improved the gas sampling precision.
The accompanying drawing explanation
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the utility model for the gas sampling device of gas piping.
Embodiment
as shown in Figure 1, the utility model comprises for the gas sampling device of gas piping the flange seat 2 of being located at gas piping 1 wall, stopple coupon 4, flange seal sleeve pipe 3, stop valve 5, metal filtration film folder 6 and heat tape 7, described stopple coupon 4 penetrates described flange seat 2 and flange seal sleeve pipe 3 front end and is positioned at described gas piping 1, described flange seal sleeve pipe 3 is fixed on described flange seat 2, described stopple coupon 4 tail ends connect described stop valve 5 input ends, described stop valve 5 output terminals connect described metal filtration film folder 6 input ends, described heat tape 7 is wound in described metal filtration film folder 6.
Further, this device also comprises gasket seal 8, and described gasket seal 8 is located between described flange seat 2 and flange seal sleeve pipe 3.
Further, above-mentioned stop valve 5 is connected with metal filtration film folder 6 with described stopple coupon 4 by screw thread, and described screw thread adopts stop-leak compound or the sealing of teflon material strip.
When guaranteeing that this device is applied at the scene, gasket seal and stop-leak compound or teflon material strip without leaking, not corroding, guarantee reliability and the security of this device.
After this device connects gas piping, at first turn-off stop valve and pipeline carried out to airtight test and guarantee without leaking, then the heat tape energising is carried out preheating to the metal filtration film folder, after metal filtration film folder is preheated to 120 ℃ and constant temperature, open stop valve, in gas piping, coal gas enters the metal filtration film folder through stopple coupon, after reaching sampling amount, turn-off stop valve and disconnect the heat tape power supply, the dismounting metal filtration film presss from both sides and changes the filter membrane sample, realize the sampling of coal gas in gas piping, and avoid the impact of the temperature difference, improve and measure precision.
This apparatus structure is simple, gas sampling is easy to operate, utilize the existing flange seat of pipeline, without special thief hatch, the plug and play made, highly versatile, avoided the potential safety hazard in the sampling operation, can apply to the sample analysis of different high-risk pressure gas pipings, a whole set of sampler impermeability is good, sampling precision is high, swift to operate, fully demonstrate safety, characteristics flexibly, can meet the demand of sampling accuracy under the gas piping high pressure.
Claims (3)
1. device of the gas sampling for gas piping, comprise the flange seat of being located at the gas piping wall, it is characterized in that: also comprise stopple coupon, flange seal sleeve pipe, stop valve, metal filtration film folder and heat tape, described stopple coupon penetrates described flange seat and flange seal sleeve pipe front end and is positioned at described gas piping, described flange seal sleeve pipe is fixed on described flange seat, described stopple coupon tail end connects described stop valve input end, described stop valve output terminal connects described metal filtration film folder input end, and described heat tape is wound in described metal filtration film folder.
2. the device of the gas sampling for gas piping according to claim 1, it is characterized in that: this device also comprises gasket seal, described gasket seal is located between described flange seat and flange seal sleeve pipe.
3. the device of the gas sampling for gas piping according to claim 1 and 2 is characterized in that: described stop valve is connected with the metal filtration film folder with described stopple coupon by screw thread, and described screw thread adopts stop-leak compound or teflon material strip to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202809577U CN203299028U (en) | 2013-05-22 | 2013-05-22 | Gas sampling device used for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202809577U CN203299028U (en) | 2013-05-22 | 2013-05-22 | Gas sampling device used for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299028U true CN203299028U (en) | 2013-11-20 |
Family
ID=49575033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202809577U Expired - Lifetime CN203299028U (en) | 2013-05-22 | 2013-05-22 | Gas sampling device used for gas pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN203299028U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604667A (en) * | 2013-11-25 | 2014-02-26 | 重庆川仪分析仪器有限公司 | Internal heating type flue gas sampling assembly |
| CN103698163A (en) * | 2013-12-27 | 2014-04-02 | 中国原子能科学研究院 | Equipment fixing device for chimney gas sampling representativeness verification test |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
| CN105445064A (en) * | 2016-01-07 | 2016-03-30 | 华北电力科学研究院有限责任公司 | Auxiliary stinger for field sampling of flue gas |
-
2013
- 2013-05-22 CN CN2013202809577U patent/CN203299028U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604667A (en) * | 2013-11-25 | 2014-02-26 | 重庆川仪分析仪器有限公司 | Internal heating type flue gas sampling assembly |
| CN103698163A (en) * | 2013-12-27 | 2014-04-02 | 中国原子能科学研究院 | Equipment fixing device for chimney gas sampling representativeness verification test |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
| CN105445064A (en) * | 2016-01-07 | 2016-03-30 | 华北电力科学研究院有限责任公司 | Auxiliary stinger for field sampling of flue gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |