CN102607764A - Multipoint synchronous pressure testing and sampling device - Google Patents

Multipoint synchronous pressure testing and sampling device Download PDF

Info

Publication number
CN102607764A
CN102607764A CN2012100457728A CN201210045772A CN102607764A CN 102607764 A CN102607764 A CN 102607764A CN 2012100457728 A CN2012100457728 A CN 2012100457728A CN 201210045772 A CN201210045772 A CN 201210045772A CN 102607764 A CN102607764 A CN 102607764A
Authority
CN
China
Prior art keywords
sampling
storage chamber
gas
flexible pipe
hose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012100457728A
Other languages
Chinese (zh)
Inventor
秦毅
杨胜强
宋万新
马旭东
王丽斌
牛杰
严家程
杨相玉
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.)
Xuzhou Zhongkuang Anda Mine Technology Co.,Ltd.
China University of Mining and Technology CUMT
Original Assignee
XUZHOU ZHONGKUANG ANDA MINE TECHNOLOGY CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XUZHOU ZHONGKUANG ANDA MINE TECHNOLOGY CO LTD filed Critical XUZHOU ZHONGKUANG ANDA MINE TECHNOLOGY CO LTD
Priority to CN2012100457728A priority Critical patent/CN102607764A/en
Publication of CN102607764A publication Critical patent/CN102607764A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a pressure testing and sampling device of a gas flow field, in particular to a multipoint synchronous pressure testing and sampling device. The device comprises a gas separating chamber formed by a sealed organic glass cylinder containing water. A plurality of small exhausting iron pipes are inserted into the gas separating chamber. The small exhausting iron pipes are connected with the small iron pipes on a sealing plug I at one end of a gas storage chamber through an exhausting hose. The inner diameter of a connection hose of the small exhausting iron pipe is greater than that of the sampling hose of the small exhausting iron pipe, moreover, the connection hose of the small exhausting iron pipe is longer than or as long as the sampling hose of the small exhausting iron pipe. Therefore, when the sucking rate of a sampling pump is greater than the air inflow of all the sampling hoses, gas in the gas storage chamber flows toward one side of a sucking pump so as to cause short-circuit of the sampling hose. After the sucking pump operates for a period of time, stable negative pressure is formed in the gas storage chamber. At the time, the sucking pump is stopped, and water in the gas separating chamber prevents the air at the sucking end from flowing backwards, and gas in the sampling hose enters the gas storage chamber due to the negative pressure of the gas storage chamber. After a period of time, pressure and airflow reach stable so as to achieve multipoint synchronous pressure testing and sampling.

Description

Synchronous pressure measurement of a kind of multiple spot and sampler
Technical field
The present invention relates to a kind of pressure measurement, sampler of gas flowfield, be specifically related to synchronous pressure measurement of a kind of multiple spot and sampler, belong to the checkout equipment technical field.
Background technology
Gas is as fluid; People have carried out a large amount of research to its balance and motion and rule, and along with progress of science and technology, people mainly study it through mathematical reasoning, experimental study, three kinds of methods of numerical evaluation; But because gas almost all exists in any space; The factor that impacts gas flow is very complicated, and mathematical reasoning and numerical evaluation are difficult to it is described accurately to a certain extent, to this; Experimental study becomes the main method of its balance of research and motion and rule, and pressure measurement is the main means of gas experiment research with sampling.At present; Known pressure measurement and sampling method and device just can carry out pressure measurement and sampling to the several points of only a few synchronously; When having the synchronous pressure measurement of a plurality of some needs and when sampling, a plurality of points can only carry out pressure measurement and sampling successively in order, cause a plurality of in pressure measurement and when taking a sample between the each point life period poor; Can't guarantee at one time a plurality of points to be carried out pressure measurement and sampling synchronously, bring bigger difficulty and error to experimental study.Therefore, method and the device of setting up a kind of synchronous pressure measurement and sampling are problem demanding prompt solutions.
Summary of the invention
The objective of the invention is for overcoming the weak point of above-mentioned prior art; Synchronous pressure measurement of a kind of multiple spot and sampler are provided, this device include one water is housed the trapping chamber that constitutes of airtight organic glass cylinder, a plurality of little iron pipes of bleeding insert in the water of trapping chamber; The described little iron pipe of bleeding is connected with little iron pipe on the air storage chamber one end sealing-plug I through the flexible pipe of bleeding; The internal diameter that the little iron pipe in trapping chamber connects flexible pipe is thicker than the sampling flexible pipe, and the former length is more than or equal to the latter, thereby when the rate of air sucked in required of sampling pump during greater than the air inflow of all flexible pipes of sampling; Air storage chamber gas causes the short circuit of sampling flexible pipe to aspiration pump one side flow.Aspiration pump is after operation a period of time, and air storage chamber forms stable negative pressure, at this moment; Stop aspiration pump, the water resistance of trapping chamber is only bled and is held air to flow backwards, and the gas in the sampling flexible pipe gets into air storage chamber owing to the air storage chamber negative pressure; Pressure and air-flow all reach stable after after a while; Thereby reach synchronous pressure measurement of multiple spot and sampling, effectively avoided the mistiming of multiple spot pressure measurement and sampling, improved the degree of accuracy of experimental study.
The present invention realizes through following technical scheme: synchronous pressure measurement of a kind of multiple spot and sampler; It is characterized in that: this device include one water is housed the trapping chamber that constitutes of airtight organic glass cylinder; A plurality of little iron pipes of bleeding insert in the water of trapping chamber, and the described little iron pipe of bleeding is connected with little iron pipe on the air storage chamber one end sealing-plug I through the flexible pipe of bleeding; Described sampling flexible pipe (10) is connected with little iron pipe I (5) through air storage chamber one end sealing-plug I; Described trapping has exhaust tube on the chamber; Iron pipe on the described air storage chamber other end sealing-plug II is connected with the sampling flexible pipe; The described stopple coupon other end is connected with syringe; Also be provided with tensimeter on the described air storage chamber.
Described exhaust tube, sebific duct is connected with aspiration pump through bleeding.
On the described sampling flexible pipe hose clamp I is arranged; Hose clamp II (17) is arranged on the described sampling flexible pipe.
Described air storage chamber two ends have sealing-plug I and sealing-plug II respectively.
The described inner diameter of bleeding is greater than or equals the inner diameter of sampling.
The invention has the beneficial effects as follows; Open sampling pump; Because is connected the internal diameter of flexible pipe with the little iron pipe in trapping chamber thicker than the sampling flexible pipe, and the former length is more than or equal to the latter, thereby when the rate of air sucked in required of sampling pump during greater than the air inflow of all flexible pipes of sampling; Air storage chamber gas causes the short circuit of sampling flexible pipe to aspiration pump one side flow.Aspiration pump is after operation a period of time, and air storage chamber forms stable negative pressure, at this moment; Stop aspiration pump, the water resistance of trapping chamber is only bled and is held air to flow backwards, and the gas in the sampling flexible pipe gets into air storage chamber owing to the air storage chamber negative pressure; Pressure and air-flow all reach stable after after a while; Thereby reach synchronous pressure measurement of multiple spot and sampling, effectively avoided the mistiming of multiple spot pressure measurement and sampling, improved the degree of accuracy of experimental study.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is pressure measurement of the present invention and sampling principle figure;
Fig. 2 is the trapping cell structure figure of an embodiment;
Fig. 3 is the transverse cross-sectional view of Fig. 2;
Among the figure 1, the trapping chamber, 2, the little iron pipe of bleeding, 3, exhaust tube, 4, little iron pipe, 5, little iron pipe I; 6, iron pipe, 7, the sealing-plug I, 8, the sealing-plug II, 9, the sampling flexible pipe, 10, the sampling flexible pipe; 11, the flexible pipe of bleeding, 12, the sebific duct of bleeding, 13, aspiration pump, 14, air storage chamber; 15, tensimeter, 16, the hose clamp I, 17, the hose clamp II, 18, syringe.
Embodiment
As shown in the figure: synchronous pressure measurement of a kind of multiple spot and sampler; This device include one water is housed the trapping chamber 1 that constitutes of airtight organic glass cylinder; A plurality of little iron pipes 2 of bleeding insert in 1 water of trapping chambers, and the described little iron pipe of bleeding is connected with little iron pipe 4 on the air storage chamber 14 1 end sealing-plug I 7 through the flexible pipe 11 of bleeding; Described sampling flexible pipe 10 is connected with little iron pipe I 5 through air storage chamber one end sealing-plug I; Described trapping has exhaust tube 3 on the chamber; Iron pipe 6 on the described air storage chamber other end sealing-plug II 8 is connected with sampling flexible pipe 9; The described stopple coupon other end is connected with syringe 18; Also be provided with tensimeter 15 on the described air storage chamber 14.
Described exhaust tube 3, sebific duct 12 is connected with aspiration pump 13 through bleeding.
On the described sampling flexible pipe 9 hose clamp I 16 is arranged; On the described sampling flexible pipe 10 hose clamp II 17 is arranged.
Described air storage chamber 14 two ends have sealing-plug I 7 and sealing-plug II 8 respectively.
Described flexible pipe 11 internal diameters of bleeding are greater than or flexible pipe 10 internal diameters that equal to sample.
Workflow: open hose clamp II 17; Close hose clamp I 16, open sampling pump 13, observe the whether bubbling of little iron pipe 2 lower ends of bleeding; Confirm whether pipeline is unimpeded; The little iron pipe 2 lower end bubblings if bleed make 13 operation a period of times of aspiration pump, observe the numerical value of all tensimeters 15; When all tensimeter numbers are stablized, note each manometric negative pressure value .At this moment, close aspiration pump 13, because air storage chamber 14 negative pressure, sampled point gas gets into air storage chamber 14 through sampling flexible pipe 10, observes all tensimeter numerical value, when all tensimeter numerical stabilities, notes each manometric numerical value , then draw the relative pressure value P=P of each sampling spot 2-P 1, close all hose clamp II 17, open hose clamp I 16 successively, syringe is inserted on the sampling flexible pipe 9 take gas away.Otherwise, then should check the smoothness of pipeline, guarantee to operate by above-mentioned steps under the unimpeded situation of pipeline.

Claims (5)

1. synchronous pressure measurement of multiple spot and sampler; It is characterized in that: this device include one water is housed the trapping chamber (1) that constitutes of airtight organic glass cylinder; A plurality of little iron pipes (2) of bleeding insert in the water of trapping chamber (1), and the described little iron pipe of bleeding is connected with little iron pipe (4) on air storage chamber (14) the one end sealing-plug I (7) through the flexible pipe of bleeding (11); Described sampling flexible pipe (10) is connected with little iron pipe I (5) through air storage chamber one end sealing-plug I; Exhaust tube (3) is arranged on the described trapping chamber; Iron pipe (6) on the described air storage chamber other end sealing-plug II (8) is connected with sampling flexible pipe (9); The described stopple coupon other end is connected with syringe (18); Also be provided with tensimeter (15) on the described air storage chamber (14).
2. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: described exhaust tube (3) is connected with aspiration pump (13) through the sebific duct of bleeding (12).
3. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: hose clamp I (16) is arranged on the described sampling flexible pipe (9); Hose clamp II (17) is arranged on the described sampling flexible pipe (10).
4. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: described air storage chamber (14) two ends have sealing-plug I (7) and sealing-plug II (8) respectively.
5. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: the described flexible pipe of bleeding (11) internal diameter is greater than or flexible pipe (10) internal diameter that equals to sample.
CN2012100457728A 2012-02-27 2012-02-27 Multipoint synchronous pressure testing and sampling device Pending CN102607764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100457728A CN102607764A (en) 2012-02-27 2012-02-27 Multipoint synchronous pressure testing and sampling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100457728A CN102607764A (en) 2012-02-27 2012-02-27 Multipoint synchronous pressure testing and sampling device

Publications (1)

Publication Number Publication Date
CN102607764A true CN102607764A (en) 2012-07-25

Family

ID=46525336

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100457728A Pending CN102607764A (en) 2012-02-27 2012-02-27 Multipoint synchronous pressure testing and sampling device

Country Status (1)

Country Link
CN (1) CN102607764A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103226139A (en) * 2013-03-18 2013-07-31 上海烟草集团有限责任公司 Process for analyzing gas-phase total components in cigarette mainstream smoke through airbag-thermal desorption-gas chromatography/mass spectrometry method
CN106840770A (en) * 2017-03-08 2017-06-13 中国农业大学 A kind of sample multipoint parallel harvester
CN109580078A (en) * 2018-12-27 2019-04-05 南通市第人民医院 A kind of device measuring negative pressure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080022786A1 (en) * 2004-01-14 2008-01-31 Heiner Sann Device And Method For Taking Samples
CN201449347U (en) * 2009-09-08 2010-05-05 西安热工研究院有限公司 Sleeve type escape ammonia sampling system
CN101706381A (en) * 2009-10-22 2010-05-12 北京市农林科学院 In-situ multipoint collecting device and method of suction-adjustable soil solution
CN201837541U (en) * 2010-07-14 2011-05-18 江苏省农业科学院 Multipoint automatic water body sampling device
CN202453142U (en) * 2012-02-27 2012-09-26 徐州中矿安达矿山科技有限公司 Multi-point synchronous pressure measuring and sampling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080022786A1 (en) * 2004-01-14 2008-01-31 Heiner Sann Device And Method For Taking Samples
CN201449347U (en) * 2009-09-08 2010-05-05 西安热工研究院有限公司 Sleeve type escape ammonia sampling system
CN101706381A (en) * 2009-10-22 2010-05-12 北京市农林科学院 In-situ multipoint collecting device and method of suction-adjustable soil solution
CN201837541U (en) * 2010-07-14 2011-05-18 江苏省农业科学院 Multipoint automatic water body sampling device
CN202453142U (en) * 2012-02-27 2012-09-26 徐州中矿安达矿山科技有限公司 Multi-point synchronous pressure measuring and sampling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103226139A (en) * 2013-03-18 2013-07-31 上海烟草集团有限责任公司 Process for analyzing gas-phase total components in cigarette mainstream smoke through airbag-thermal desorption-gas chromatography/mass spectrometry method
CN103226139B (en) * 2013-03-18 2015-04-08 上海烟草集团有限责任公司 Process for analyzing gas-phase total components in cigarette mainstream smoke through airbag-thermal desorption-gas chromatography/mass spectrometry method
CN106840770A (en) * 2017-03-08 2017-06-13 中国农业大学 A kind of sample multipoint parallel harvester
CN109580078A (en) * 2018-12-27 2019-04-05 南通市第人民医院 A kind of device measuring negative pressure

Similar Documents

Publication Publication Date Title
CN204202952U (en) A kind of portative gas sampler
JP2014173910A (en) Exhaust gas sampling device
CN102607764A (en) Multipoint synchronous pressure testing and sampling device
EP2221787A3 (en) Smoke detector
CN103674631A (en) Dual-pump flow-equalizing flue sampling device and sampling method
CN202453142U (en) Multi-point synchronous pressure measuring and sampling device
CN105277397A (en) Vehicle tail gas collection device as well as vehicle tail gas detection system and method
CN203798636U (en) Dual-pump flow-equalizing flue gas sampling device
CN201757721U (en) Negative pressure flue gas sampling device
CN204768780U (en) Ration straw
CN204028046U (en) Film Concentration Sampling device
CN203758803U (en) Engine exhaust particle sampling system
CN201344867Y (en) Rear composite flue dust sampling gun of collecting device
CN203510673U (en) Die exhausting and cooling device
CN205861406U (en) Full automatic atmospheric keeps sample device
CN104535376A (en) Gas collecting device
CN203908828U (en) Quantitative gas sampler
CN205067170U (en) Gaseous sample collection ware
CN202133528U (en) Active flow control experimental device for high-speed wind tunnel air intake duct
CN203551338U (en) Gas sampling mechanism for measuring device and measuring device with gas sampling mechanism
CN204439426U (en) A kind of monitoring of hospital infection gas extractor
CN205120302U (en) Gas pressure gets pressure equipment and puts under water
CN204484133U (en) A kind of vacuum test tube
CN203604992U (en) Gas conveying device
CN203847202U (en) Apparatus capable of keeping pressure inside engine crankcase constant

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: CHINA UNIVERSITY OF MINING + TECHNOLOGY

Free format text: FORMER OWNER: XUZHOU ZHONGKUANG ANDA MINE TECHNOLOGY CO., LTD.

Effective date: 20130227

Owner name: XUZHOU ZHONGKUANG ANDA MINE TECHNOLOGY CO., LTD.

Effective date: 20130227

TA01 Transfer of patent application right

Effective date of registration: 20130227

Address after: 221000 Jiangsu province Xuzhou Quanshan District Road No. 1, China University of Mining and Technology University

Applicant after: China University of Mining & Technology

Applicant after: Xuzhou Zhongkuang Anda Mine Technology Co.,Ltd.

Address before: Third Ring Road 221000 in Jiangsu province Xuzhou City Quanshan District No. 269

Applicant before: Xuzhou Zhongkuang Anda Mine Technology Co.,Ltd.

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120725