CN106989963A - A kind of pipeline gas enclosed sampling method - Google Patents

A kind of pipeline gas enclosed sampling method Download PDF

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Publication number
CN106989963A
CN106989963A CN201710429447.4A CN201710429447A CN106989963A CN 106989963 A CN106989963 A CN 106989963A CN 201710429447 A CN201710429447 A CN 201710429447A CN 106989963 A CN106989963 A CN 106989963A
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CN
China
Prior art keywords
interface
steel cylinder
sampling
valve
pipe
Prior art date
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Granted
Application number
CN201710429447.4A
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Chinese (zh)
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CN106989963B (en
Inventor
陈星霖
王志学
宋维政
李跟臣
侯军祥
钮霞
王茜
吕亚辉
林红梅
孟宪玲
王巍
李强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING YONGXING JINGJIA INSTRUMENTS CO LTD
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BEIJING YONGXING JINGJIA INSTRUMENTS CO LTD
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Priority to CN201710429447.4A priority Critical patent/CN106989963B/en
Publication of CN106989963A publication Critical patent/CN106989963A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/22Devices for withdrawing samples in the gaseous state

Abstract

The invention discloses a kind of pipeline gas enclosed sampling method, comprise the following steps:The first step:Material in process pipe is transported to material inlet flange by pump discharge pipe;This cross over transition four-way valve has first interface, second interface, the 3rd interface and the 4th interface;Second step:When needing sampling, as long as cross over transition four-way valve is twisted 90 degree, when being screwed to sample position, fresh material is replaced and has rinsed sampling steel cylinder, is closed after steel cylinder vent needle valve and steel cylinder import needle-valve and is completed sampling steel cylinder sampling;Three steps:Cross over transition four-way valve is screwed to circulation position again and plays circulation;4th step:Atmospheric valve is opened, the pressure releasing in first snap joint and the second snap joint at sampling steel cylinder two ends to torch is reclaimed, closing atmospheric valve when being released to zero completes sampling work;This method is simple to operate, can avoid maloperation.

Description

A kind of pipeline gas enclosed sampling method
Technical field
The present invention relates to a kind of pipeline gas enclosed sampling method.
Background technology
Petrochemical field quality inspection analysis system pipeline sampling both at home and abroad has been employed sealing sampler at present.Sealing sampler Most commonly used is two major classes:Liquid sampling and gas sample.The container that liquid sampling is generally used is closed glass jar, And the container that gas sample is generally used is enclosed steel cylinder.
Material in process pipe is by being pumped into the suction flange of confined gas sampler, by confined gas sampler Internal pipe valve plays circulation, and then fresh material takes by the steel cylinder that could be typically completed by operating six sampling valve groups again Sample, operation is more bothered, and easily maloperation.
Based on above mentioned problem, it is desirable to provide a kind of simple to operate, it can avoid the pipeline gas of maloperation is closed from taking Quadrat method
The content of the invention
The technical problem to be solved in the present invention is to provide one kind is simple to operate, the pipeline gas of maloperation can be avoided Enclosed sampling method.
To solve the above problems, the present invention is adopted the following technical scheme that:
A kind of pipeline gas enclosed sampling method,.
Comprise the following steps:
The first step:Material in process pipe is transported to material inlet flange by pump discharge pipe, passes through material inlet flange It is transferred in the first pipe fitting, is filtered after impurity and enters cross over transition four-way valve;This cross over transition four-way valve has the One interface, second interface, the 3rd interface and the 4th interface:When cross over transition four-way valve is screwed in circulation position, first interface, Two interfaces, the 3rd interface and the 4th interface are simultaneously open-minded, and material returns to pump by first interface and second interface after the second pipe fitting Inlet tube, carries out material and circulates for 24 hours;
Second step:When needing sampling, as long as cross over transition four-way valve is twisted 90 degree, when being screwed to sample position, cross over transition First interface, second interface, the 3rd interface and the 4th interface are simultaneously open-minded inside four-way valve, and material is connect by first interface and the 4th Mouth flows to sampling steel cylinder, opens steel cylinder import needle-valve and steel cylinder vent needle valve, and the sampled steel cylinder of material flows into second interface and the Return to pump inlet pipe, entered by pump inlet pipe in process pipeline through the first pipe fitting after three interfaces, fresh material is replaced simultaneously Sampling steel cylinder has been rinsed, has closed after steel cylinder vent needle valve and steel cylinder import needle-valve and completes sampling steel cylinder sampling;
3rd step:Cross over transition four-way valve is screwed to circulation position again and plays circulation, first interface, second interface, the 3rd connect Mouth and the 4th interface are simultaneously open-minded;
4th step:Atmospheric valve is opened, by the pressure in first snap joint and the second snap joint at sampling steel cylinder two ends Torch recovery is released to, atmospheric valve is closed when being released to zero.Sampling steel cylinder now just can be safely removed from snap joint, most The snap joint on flexible pipe is connected afterwards, sampling work is completed.
The beneficial effects of the invention are as follows:Only need to operate cross over transition four-way valve in the whole sampling process of the present apparatus, altogether behaviour Make 9 times, operation is not only easy, and maloperation is not resulted in most importantly, it is ensured that safety in production.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of pipeline gas closed system.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
A kind of pipeline gas sealing sampler as shown in Figure 1, including cross over transition four-way valve 1 and sampling steel cylinder 2, it is described Cross over transition four-way valve 1 has first interface 101, second interface 102, the 3rd interface 103 and the 4th interface 104, described first Interface 101 is connected with the first pipe fitting 111, and the second interface 102 is connected with the second pipe fitting 112, and the 3rd interface 103 is connected There is the 3rd pipe fitting 113, the 4th interface 104 is connected with the 4th pipe fitting 114, and first pipe fitting 111 connects away from described first That one end of mouth 101 is connected with material inlet flange 121, passes through the material inlet flange 121 and connects pump discharge pipe, described second That one end of pipe fitting 112 away from the second interface 102 is connected with material outlet flange 122, passes through the material outlet flange 122 Pump inlet pipe is connected, described that one end of 3rd pipe fitting 113 away from the 3rd interface 103 is connected with material recycle flange 123, Torch is reclaimed by the material recycle flange 123 connection, the upper end of the sampling steel cylinder 2 is connected with steel cylinder vent needle valve 201, institute The lower end for stating sampling steel cylinder 2 is connected with steel cylinder import needle-valve 202, that away from the 4th interface 104 of the 4th pipe fitting 114 One end connects with the steel cylinder import needle-valve 202, is combined between the 4th pipe fitting 114 and the steel cylinder import needle-valve 202 First snap joint 3, the sampling steel cylinder 2 is connected with the 5th pipe fitting 105, the described 5th by the steel cylinder vent needle valve 201 Pipe fitting 105 connects the 3rd pipe fitting 103, and second is combined between the 5th pipe fitting 105 and the steel cylinder vent needle valve 201 Snap joint 4, atmospheric valve 5 and check valve 6 are provided with the pipe shaft of the 3rd pipe fitting 103.
Filter 7 is combined with the position of the first pipe fitting 101.
4th pipe fitting 104 is connected with a pressure gauge 8.
The atmospheric valve 5 is arranged at side of the check valve 6 away from the material recycle flange 123.
The tie point of 5th pipe fitting 105 and the 3rd pipe fitting 103 is located at the atmospheric valve 5 away from the check valve 6 side.
A kind of pipeline gas enclosed sampling method, comprises the following steps:
The first step:Material in process pipe is transported to material inlet flange by pump discharge pipe, passes through material inlet flange It is transferred in the first pipe fitting, is filtered after impurity and enters cross over transition four-way valve;This cross over transition four-way valve has the One interface, second interface, the 3rd interface and the 4th interface:When cross over transition four-way valve is screwed in circulation position, first interface, Two interfaces, the 3rd interface and the 4th interface are simultaneously open-minded, and material returns to pump by first interface and second interface after the second pipe fitting Inlet tube, carries out material and circulates for 24 hours;
Second step:When needing sampling, as long as cross over transition four-way valve is twisted 90 degree, when being screwed to sample position, cross over transition First interface, second interface, the 3rd interface and the 4th interface are simultaneously open-minded inside four-way valve, and material is connect by first interface and the 4th Mouth flows to sampling steel cylinder, opens steel cylinder import needle-valve and steel cylinder vent needle valve, and the sampled steel cylinder of material flows into second interface and the Return to pump inlet pipe, entered by pump inlet pipe in process pipeline through the first pipe fitting after three interfaces, fresh material is replaced simultaneously Sampling steel cylinder has been rinsed, has closed after steel cylinder vent needle valve and steel cylinder import needle-valve and completes sampling steel cylinder sampling;
3rd step:Cross over transition four-way valve is screwed to circulation position again and plays circulation, first interface, second interface, the 3rd connect Mouth and the 4th interface are simultaneously open-minded;
4th step:Atmospheric valve is opened, by the pressure in first snap joint and the second snap joint at sampling steel cylinder two ends Torch recovery is released to, atmospheric valve is closed when being released to zero.Sampling steel cylinder now just can be safely removed from snap joint, most The snap joint on flexible pipe is connected afterwards, sampling work is completed.
The beneficial effects of the invention are as follows:Only need to operate cross over transition four-way valve in the whole sampling process of the present apparatus, altogether behaviour Make 9 times, operation is not only easy, and maloperation is not resulted in most importantly, it is ensured that safety in production.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent is defined.

Claims (1)

1. a kind of pipeline gas enclosed sampling method, it is characterised in that:Comprise the following steps:
The first step:Material in process pipe is transported to material inlet flange by pump discharge pipe, is transmitted by material inlet flange Into the first pipe fitting, it is filtered after impurity and enters cross over transition four-way valve;This cross over transition four-way valve has first to connect Mouth, second interface, the 3rd interface and the 4th interface:When cross over transition four-way valve is screwed in circulation position, first interface, second connect Mouth, the 3rd interface and the 4th interface are simultaneously open-minded, and material returns to pump inlet by first interface and second interface after the second pipe fitting Pipe, carries out material and circulates for 24 hours;
Second step:When needing sampling, as long as cross over transition four-way valve is twisted 90 degree, when being screwed to sample position, cross over transition four-way First interface, second interface, the 3rd interface and the 4th interface are simultaneously open-minded inside valve, and material is by first interface and the 4th interface stream To sampling steel cylinder, steel cylinder import needle-valve and steel cylinder vent needle valve are opened, the sampled steel cylinder of material flows into second interface and the 3rd and connect Return to pump inlet pipe, entered by pump inlet pipe in process pipeline, fresh material is replaced and rinsed through the first pipe fitting after mouthful Sampling steel cylinder, closes after steel cylinder vent needle valve and steel cylinder import needle-valve and completes sampling steel cylinder sampling;
3rd step:Cross over transition four-way valve is screwed to circulation position again and plays circulation, first interface, second interface, the 3rd interface and 4th interface is simultaneously open-minded;
4th step:Atmospheric valve is opened, by the pressure releasing in first snap joint and the second snap joint at sampling steel cylinder two ends Reclaimed to torch, atmospheric valve is closed when being released to zero;Sampling steel cylinder now just can be safely removed from snap joint, finally handle Snap joint on flexible pipe is connected, and completes sampling work.
CN201710429447.4A 2017-06-08 2017-06-08 A kind of pipeline gas enclosed sampling method Active CN106989963B (en)

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CN106989963B CN106989963B (en) 2019-08-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111504734A (en) * 2020-04-30 2020-08-07 江苏星亚迪环境科技有限公司 Low-pressure gas sampler

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19933948A1 (en) * 1999-07-20 2001-02-08 Manfred Trimborn Gas-liquid sample removal device for chemical analysis converts a liquid sampler into a headspace autosampler
CN1818661A (en) * 2006-01-16 2006-08-16 西安交通大学 Fast On-line sampler with sample feeding for multi-channel gas and catalyst performance determining system
CN2876756Y (en) * 2005-11-22 2007-03-07 刘世凯 Tube type closed sampler
CN101226114A (en) * 2007-12-14 2008-07-23 中国石化扬子石油化工有限公司 Enclosed sampling apparatus and method for liquid-solid system with high temperature and high voltage
CN202305264U (en) * 2011-06-29 2012-07-04 亚洲硅业(青海)有限公司 Portable sealed sampler
CN202382990U (en) * 2011-11-30 2012-08-15 安徽桑铌科技股份有限公司 Gas sampling device
CN104090077A (en) * 2014-07-16 2014-10-08 中冶南方工程技术有限公司 Multi-channel cyclic sampling gas analysis system with channel self-check function and control method
CN204228476U (en) * 2014-09-30 2015-03-25 中国石油天然气股份有限公司 Liquefied gas enclosed sampling system
CN205298767U (en) * 2015-10-15 2016-06-08 北京中教金源科技有限公司 Gas cross tee bend valve system that takes a sample on line
CN205691372U (en) * 2016-06-17 2016-11-16 江苏惠斯通机电科技有限公司 Tank body medium enclosed sampling system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19933948A1 (en) * 1999-07-20 2001-02-08 Manfred Trimborn Gas-liquid sample removal device for chemical analysis converts a liquid sampler into a headspace autosampler
CN2876756Y (en) * 2005-11-22 2007-03-07 刘世凯 Tube type closed sampler
CN1818661A (en) * 2006-01-16 2006-08-16 西安交通大学 Fast On-line sampler with sample feeding for multi-channel gas and catalyst performance determining system
CN101226114A (en) * 2007-12-14 2008-07-23 中国石化扬子石油化工有限公司 Enclosed sampling apparatus and method for liquid-solid system with high temperature and high voltage
CN202305264U (en) * 2011-06-29 2012-07-04 亚洲硅业(青海)有限公司 Portable sealed sampler
CN202382990U (en) * 2011-11-30 2012-08-15 安徽桑铌科技股份有限公司 Gas sampling device
CN104090077A (en) * 2014-07-16 2014-10-08 中冶南方工程技术有限公司 Multi-channel cyclic sampling gas analysis system with channel self-check function and control method
CN204228476U (en) * 2014-09-30 2015-03-25 中国石油天然气股份有限公司 Liquefied gas enclosed sampling system
CN205298767U (en) * 2015-10-15 2016-06-08 北京中教金源科技有限公司 Gas cross tee bend valve system that takes a sample on line
CN205691372U (en) * 2016-06-17 2016-11-16 江苏惠斯通机电科技有限公司 Tank body medium enclosed sampling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111504734A (en) * 2020-04-30 2020-08-07 江苏星亚迪环境科技有限公司 Low-pressure gas sampler

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