CN203811338U - Tubing gas permeability testing device - Google Patents

Tubing gas permeability testing device Download PDF

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Publication number
CN203811338U
CN203811338U CN201420110908.3U CN201420110908U CN203811338U CN 203811338 U CN203811338 U CN 203811338U CN 201420110908 U CN201420110908 U CN 201420110908U CN 203811338 U CN203811338 U CN 203811338U
Authority
CN
China
Prior art keywords
cavity
hole
tubing
height
seal groove
Prior art date
Application number
CN201420110908.3U
Other languages
Chinese (zh)
Inventor
王栋
郭启浩
李沐芳
赵青华
罗梦颖
Original Assignee
武汉纺织大学
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 武汉纺织大学 filed Critical 武汉纺织大学
Priority to CN201420110908.3U priority Critical patent/CN203811338U/en
Application granted granted Critical
Publication of CN203811338U publication Critical patent/CN203811338U/en

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Abstract

The utility model relates to a tubing gas permeability testing device, especially relates to test of gas penetration of tubings prepared by plastic and metal materials, and belongs to test equipment. The testing device comprises a lower body and an upper body which are connected through bolts, the center position of the lower body is provided with a cavity, a lower portion and a side surface of the cavity are provided with through holes, an upper end surface of the lower body and the periphery of the cavity are provided with a sealing groove, the height of the outer wall of the sealing groove is higher than that of the inner wall of the sealing groove, and the height of a lower end surface of the upper body is higher than the height difference between the outer wall and the inner wall of the sealing groove. The testing device is reasonable in design structure, simple in structure, low in cost, convenient to operate, and is suitable for gas permeability test of various tubings.

Description

A kind of tubing gas permeation system safety testing device

Technical field

The utility model relates to a kind of tubing gas permeation system safety testing device, relates in particular to the test of the gas permeability of plastics and class of metal materials tubing, belongs to testing apparatus class.

Background technology

Plastic pipe for standing storage gas generally will carry out gas permeability test, to detect pipe fitting, whether be applicable under certain pressure, gas permeation not occurring for a long time and leak gas, traditional gas permeation system safety testing device, it is mostly the test to the gas permeability of film, sheet material and container style, at present, for tubing be mostly bubble-tight proving installation, and not for the proving installation of pipe fitting gas permeability.Tradition gas permeation system safety testing device, due to structure and design, can not complete and do testing permeability to doing the tubing of gas permeability test.

Summary of the invention

For above-mentioned existing problems, the purpose of this utility model is to provide a kind of device that can test tubing gas permeability under gases at high pressure condition.

To achieve these goals, the technical solution of the utility model is:

A kind of tubing gas permeation system safety testing device, proving installation comprises the upper body being bolted and is provided with the lower body of connector, the center position of described lower body is provided with a cavity, it is cylindric that cavity is, the first through hole and the second through hole are established respectively in bottom and side at cavity, the first through hole is mutually vertical with the second through hole, the first through hole is fixedly connected with the connector on lower body, upper surface at lower body is provided with seal groove, seal groove is positioned at the periphery of cavity, the same footpath of external diameter of the internal diameter of seal groove and lower surface, upper body, the height of the outer wall of seal groove is higher than the height of inwall.The height of the lower surface of described upper body is higher than the difference in height of outer wall and the inwall of seal groove.

Owing to having adopted above technical scheme, the utility model is set up seal groove in the lower body of proving installation, in the seal groove of setting up in lower body inside, pour into a mould paraffin, strengthened the sealing of proving installation, when test tubing is put into proving installation and is tested, tubing is divided into hyperbaric chamber and low-pressure chamber cavity, test gas can be by the cavity in lower body the air hole of lower end enter in tubing, form hyperbaric chamber, by tubing, permeate gas in the past and enter cavity, enter low-pressure chamber, and enter extraneous pressure test device by the air hole of cavity side, paraffin in seal groove can prevent that gas from oozing out from the contact position of upper body and lower body, by pressure differential method, can realize and tubular product sample is done to gas permeability detect, proving installation project organization of the present utility model is reasonable, simple in structure, cost is low, easy to operate, be applicable to the gas permeability test of various tubing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the upward view of upper body 1 in Fig. 1;

Fig. 3 is the vertical view of the lower body 2 in Fig. 1;

Fig. 4 is working state schematic representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model sheet material test device for air tightness is described in further detail.

As shown in Figure 1, Figure 2, Figure 3, Figure 4,

A kind of tubing gas permeation system safety testing device, proving installation consists of bolted upper body 1 and the lower body 2 that is provided with connector, the center position of described lower body 2 is provided with a cavity 6, cavity 6 is cylindric, the first through hole 4 and the second through hole 5 are established respectively in bottom and side at cavity 6, the first through hole 4 is mutually vertical with the second through hole 5, the first through hole 4 is fixedly connected with the connector on lower body 2, connector external gas source, the external tester of the second through hole 5, in the upper surface of lower body 2, be provided with seal groove 3, seal groove 3 is positioned at the periphery of cavity 6, the same footpath of external diameter of the internal diameter of seal groove 3 and 1 lower surface, upper body, the height of the outer wall of seal groove 3 is higher than the height of inwall.The height of the lower surface of upper body 1 is higher than the difference in height of outer wall and the inwall of seal groove 3.

Principle of work of the present utility model:

See Fig. 4, during test, the test tubing 8 of certain length is placed in the cavity 6 of lower body 2, above and below at test tubing 8 arranges respectively sealing gasket, cover upper body 1, by adjusting the bolt of the connection between upper body 1 and lower body 2, make sealing gasket and test tubing 8, upper body 1 and the abundant close contact of lower body 2, then to the seal groove 3 potting syrup paraffin bodies 7 in lower body 2, make it cover the lower surface of upper body 1, after solidifying Deng it, the first through hole 4 by lower body 2 belows connects gases at high pressure device to be measured, the second through hole 5 by lower body 2 sides connects the outer device of surveying, pass into the test gas of measuring pressure, make its tubing that passes into lower body 28, test gas sees through after test tubing 8 under sealing state, by the second through hole 5, enter external pressure tester, by outer survey device, can quantitatively detect the gas permeability of test tubing 8 under pressurized condition.

Claims (2)

1. a tubing gas permeation system safety testing device, proving installation comprises the upper body (1) being bolted and the lower body (2) that is provided with connector, it is characterized in that: the center position of described lower body (2) is provided with a cavity (6), cavity (6) is cylindric, the first through hole (4) and the second through hole (5) are established respectively in bottom and side at cavity (6), the first through hole (4) is mutually vertical with the second through hole (5), the first through hole (4) is fixedly connected with the connector on lower body (2), in the upper surface of lower body (2), be provided with seal groove (3), seal groove (3) is positioned at the periphery of cavity (6), the same footpath of external diameter of the internal diameter of seal groove (3) and lower surface, upper body (1), the height of the outer wall of seal groove (3) is higher than the height of inwall.
2. tubing gas permeation system safety testing device as claimed in claim 1, is characterized in that: the height of the lower surface of described upper body (1) is higher than the outer wall of seal groove (3) and the difference in height of inwall.
CN201420110908.3U 2014-03-12 2014-03-12 Tubing gas permeability testing device CN203811338U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420110908.3U CN203811338U (en) 2014-03-12 2014-03-12 Tubing gas permeability testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420110908.3U CN203811338U (en) 2014-03-12 2014-03-12 Tubing gas permeability testing device

Publications (1)

Publication Number Publication Date
CN203811338U true CN203811338U (en) 2014-09-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420110908.3U CN203811338U (en) 2014-03-12 2014-03-12 Tubing gas permeability testing device

Country Status (1)

Country Link
CN (1) CN203811338U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103674808A (en) * 2013-12-17 2014-03-26 中国石油天然气集团公司 Gas permeability testing device and testing method for full-size nonmetal tube
CN104880394A (en) * 2015-05-04 2015-09-02 同济大学 Concrete gas permeability testing apparatus and testing method thereof
CN106197896A (en) * 2016-08-10 2016-12-07 怡维怡橡胶研究院有限公司 A kind of tube or inner liner air tightness detecting apparatus and determination of gas tightness method
CN106841000A (en) * 2017-01-12 2017-06-13 四川大学 The sample component and its test method of special hypotonic rock radial penetration rate testing experiment
CN111366522A (en) * 2020-04-20 2020-07-03 苏交科集团股份有限公司 Test collection system of concrete gas permeability data

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103674808A (en) * 2013-12-17 2014-03-26 中国石油天然气集团公司 Gas permeability testing device and testing method for full-size nonmetal tube
CN104880394A (en) * 2015-05-04 2015-09-02 同济大学 Concrete gas permeability testing apparatus and testing method thereof
CN104880394B (en) * 2015-05-04 2017-12-26 同济大学 A kind of concrete air infiltration test equipment and its method of testing
CN106197896A (en) * 2016-08-10 2016-12-07 怡维怡橡胶研究院有限公司 A kind of tube or inner liner air tightness detecting apparatus and determination of gas tightness method
CN106841000A (en) * 2017-01-12 2017-06-13 四川大学 The sample component and its test method of special hypotonic rock radial penetration rate testing experiment
CN106841000B (en) * 2017-01-12 2019-12-27 四川大学 Sample assembly for radial permeability test of ultra-low permeability rock and test method thereof
CN111366522A (en) * 2020-04-20 2020-07-03 苏交科集团股份有限公司 Test collection system of concrete gas permeability data
CN111366522B (en) * 2020-04-20 2020-10-30 苏交科集团股份有限公司 Test collection system of concrete gas permeability data

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