CN202994400U - Box gas leakage detector - Google Patents

Box gas leakage detector Download PDF

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Publication number
CN202994400U
CN202994400U CN 201220581939 CN201220581939U CN202994400U CN 202994400 U CN202994400 U CN 202994400U CN 201220581939 CN201220581939 CN 201220581939 CN 201220581939 U CN201220581939 U CN 201220581939U CN 202994400 U CN202994400 U CN 202994400U
Authority
CN
China
Prior art keywords
pad
gas leakage
control valve
leakage detector
casing
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.)
Expired - Fee Related
Application number
CN 201220581939
Other languages
Chinese (zh)
Inventor
韩爱国
田韶鹏
徐达伟
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.)
Wuhan Bida Electromechanical Co., Ltd.
Original Assignee
Wuhan University of Technology WUT
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 Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN 201220581939 priority Critical patent/CN202994400U/en
Application granted granted Critical
Publication of CN202994400U publication Critical patent/CN202994400U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a box gas leakage detector; the box gas leakage detector comprises a supporting plate and an air circuit system arranged on the supporting plate; the supporting plate is fixed on a box provided with a sealing structure; the air circuit system comprises a pressure-regulating filter, a flow meter and a flow control valve which are all fixed on the supporting plate; a gas input port of the pressure-regulating filter is connected with an external air source; the flow meter is communicated with both the pressure-regulating filter and the flow control valve; and an air inlet hole communicated with the flow control valve is arranged on the supporting plate. The box gas leakage detector can detect the flow of air leakage in the box under specific air pressure and has the advantages of being simple in structure, convenient and reliable to use, and the like.

Description

Casing gas leakage detector
Technical field
The utility model relates to the testing meter and instrument field, relates in particular to a kind of casing gas leakage detector.
Background technology
Box parts is plant equipment and is permitted multipart important feature body, also that matrix is installed, as wheel box, engine cylinder-body etc., the impermeability of casing needs regularly to detect, detection method commonly used is, pressure gas source injects box house through additional air-channel system, by observing the variation of bleed pressure, determines the leakage situation of tested casing.In these schemes, exist problem: first only by the variation of gaseous tension, judges whether to exist to leak, and does not quantize quantity of gas leakage; The second gaseous tension is taked a little at source of the gas, easily causes erroneous judgement on the one hand, if tested casing exists and leaks on the other hand, at this moment because there is the pressure loss in gas circuit, tensimeter detected pressures value can not reflect casing homeostasis pressure; The 3rd exists effort, the problems such as length consuming time of detecting.
The utility model content
The technical problems to be solved in the utility model is can't judge whether to exist when detecting the casing impermeability in prior art to leak, easily form erroneous judgement, and detect the problem of effort length consuming time, provide a kind of and can judge effectively whether casing gas exists the casing gas leakage detector of leakage.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of casing gas leakage detector is provided, comprise back up pad and top air-channel system thereof, described back up pad is fixed on the casing that hermetically-sealed construction is housed, described air-channel system comprises pressure regulation filtrator, flowmeter and the flowrate control valve that all is fixed on described back up pad, the gas input port of described pressure regulation filtrator is connected with external air source, described flowmeter all is communicated with described pressure regulation filtrator, described flowrate control valve, and described back up pad is provided with the air admission hole that is communicated with described flowrate control valve.
In casing gas leakage detector described in the utility model, this detector also comprises the independent pressure table, and it is arranged on back up pad, and described independent pressure table connects one and extends hollow stem, and this prolongation hollow stem is passed described back up pad and entered described box house.
In casing gas leakage detector described in the utility model, this detector also comprises two handles, is arranged on described back up pad both sides.
In casing gas leakage detector described in the utility model, the upper end of described flowmeter is supported with described back up pad by output terminal and is fixedly connected with, and the lower end of described flowmeter is supported with described back up pad by input end and is fixedly connected with.
In casing gas leakage detector described in the utility model, described flowrate control valve is arranged in described output terminal supporting.
Use the utility model, has following beneficial effect: the utility model casing gas leakage detector, comprise back up pad and top air-channel system thereof, external air source is through pressure regulation filtrator, flowmeter, the flowrate control valve of air-channel system, inject casing by the air admission hole on back up pad, wherein flowmeter can be monitored the flow that is subjected to the gas air leakage under specific air pressure in examination box, the utlity model has the advantages such as simple in structure, easy to use, reliable.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the work schematic diagram of the utility model embodiment casing gas leakage detector;
Fig. 2 is the plan structure schematic diagram of the utility model embodiment casing gas leakage detector;
Fig. 3 is that the utility model embodiment Fig. 1 is along the amplification profile view of A-A direction;
Fig. 4 is that the utility model embodiment Fig. 1 is along the amplification profile view of B-B direction;
Fig. 5 is that the utility model embodiment Fig. 1 is along the amplification profile view of C-C direction;
Fig. 6 is that the utility model embodiment Fig. 1 is along the amplification profile view of D-D direction.
In figure:
1 handle 2 pipe adapters
3 pressure regulation filtrator 4 flowmeters
5 pipe adapter 6 flowrate control valves
7 bolt 8 pipe adapters
10 independent pressure table 20 screws
23 back up pad 25 flexible pipes
26 pipe adapter 27 output terminal supportings
28 O-ring seal 29 input end supportings
30 extend hollow stem 31 screws
32 adapter 34 spring washers
35 O-ring seal 36 trim rings
37 inner ring 38 outer rings
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1, casing gas leakage detector comprises back up pad 23 and top air-channel system thereof, and back up pad 23 is that matrix is installed, and other parts are mounted thereon.It (is casing to be measured that back up pad 23 is fixed on the casing that hermetically-sealed construction is housed, not shown) on, air-channel system comprises pressure regulation filtrator 3, flowmeter 4 and the flowrate control valve 6 that all is fixed on back up pad 23, the gas input port of pressure regulation filtrator 3 is connected (gas input port can be connected with external air source by pipe adapter 2 and flexible pipe) with external air source, flowmeter 4 all is communicated with pressure regulation filtrator 3, flowrate control valve 6, and back up pad 23 is provided with the air admission hole (not shown) that is communicated with flowrate control valve 6.Flowmeter 4 can be monitored the quantity of gas leakage that is subjected in examination box.In an embodiment of the present utility model, flowmeter 4 can adopt metal floater flowmeter.
In embodiment of the present utility model, back up pad 23 is fixed on the tested casing that hermetically-sealed construction is housed, external air source is through pressure regulation filtrator 3, input end supporting 29, flowmeter 4, output terminal supporting 27, the flowrate control valve 6 of air-channel system, and the air admission hole that passes through on back up pad 23 injects tested casing.
As Fig. 1, Fig. 2 and shown in Figure 4, flowmeter 4 is connected with input end supporting 29 with output terminal supporting 27 by bolt 7, and O-ring seal 28 wherein is set on faying face, and output terminal supporting 27 and input end supporting 29 are fixed by screws on back up pad 23.Mounting pipe joint 8(pipe adapter 8 can adopt locknut formula right angle terminal conduit joint in input end supporting 29), be connected on pressure regulation filtrator 3 with flexible pipe 25.Pressure regulation filtrator 3 is fixed on back up pad 23 by screw 20, spring washer and packing ring.In output terminal supporting 27, flowrate control valve 6 has been installed, flowrate control valve 6 can adopt locknut formula right angle terminal conduit joint by pipe adapter 5(pipe adapter 5), flexible pipe and pipe adapter 26 access back up pads 23, thereby form a duct in from pressure regulation filtrator 3 to tested casing.Can by slowly regulating pressure regulator valve and/or the flowrate control valve 6 of pressure regulation filtrator 3, avoid flowmeter 4 to damage because being subject to suddenly the gases at high pressure impact.The detector of the utility model embodiment can detect in casing the flow of air leakage under specific air pressure, has the advantages such as simple in structure, easy to use, reliable.
The utility model embodiment casing gas leakage detector also comprises independent pressure table 10, as Fig. 1 and shown in Figure 5, it is arranged on back up pad 23, independent pressure table 10 connects one and extends hollow stem 30, this prolongation hollow stem 30 is passed back up pad 23 and is entered box house, with by extending the pressure in hollow stem 30 monitoring casings, obtain detecting inner steady state pressure.As shown in Figure 5, independent pressure table 10 is connected on adapter 32 by screw 31 and spring washer 34, and nut is fixed on adapter 32 on back up pad 23.Utilize outer ring 38 extruding inner ring 37, trim ring 36 and three O-ring seals 35, clamp simultaneously independent pressure table 10.Form hermetically-sealed construction around the input port of tensimeter 10, reach excellent sealing effect.
On the basis of above-described embodiment, this detector also comprises two handles 1, is arranged on back up pad 23 both sides, is convenient to mobile and uses.Handle 1 is fixed on back up pad 23 by screw, spring packing ring and O-ring seal.
As shown in Figure 4, the casing gas leakage detector in the utility model embodiment, the upper end of flowmeter 4 is supported 27 by output terminal and is fixedly connected with back up pad 23, and the lower end of flowmeter 4 is supported 29 by input end and is fixedly connected with back up pad 23.In an embodiment of the present utility model, flowrate control valve 6 is connected on back up pad 23 by pipe adapter 5, tracheae and pipe adapter 26 successively, forms gas circuit by air admission hole and casing.
Be understandable that, thereby casing gas leakage detector of the present utility model can change according to different test requests and select different flowmeters and tensimeter to improve test specification, thereby alteration of form detector that can be uncovered according to casing and the shape of casing surface of contact enlarge the casing test specification, and simple in structure, convenient and reliable operation.
During detection, detector is fixed on tested casing with hermetically-sealed construction, be transferred to the pressure regulator valve of pressure regulation filtrator 3 minimum, flowrate control valve 6 is transferred to minimum, from pipe adapter 2 access gases at high pressure, progressively pressure regulator valve and flowrate control valve 6 are tuned up, this moment, gases at high pressure injected in tested casing through pressure regulation filtrator 3, input end supporting 29, flowmeter 4, output terminal supporting 27 and flowrate control valve 6.When adjusting met test request, the indicating value of flowmeter 4 was the amount of leakage of tested casing, and the indicating value of independent pressure table 10 is the steady state pressure of the inside of tested casing.By these two numerical value, can judge whether tested casing exists leakage, perhaps can determine the quantity of gas leakage of tested casing under specific pressure.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of the utility model claims.

Claims (5)

1. casing gas leakage detector, it is characterized in that, comprise back up pad and top air-channel system thereof, described back up pad is fixed on the casing that hermetically-sealed construction is housed, described air-channel system comprises pressure regulation filtrator, flowmeter and the flowrate control valve that all is fixed on described back up pad, the gas input port of described pressure regulation filtrator is connected with external air source, described flowmeter all is communicated with described pressure regulation filtrator, described flowrate control valve, and described back up pad is provided with the air admission hole that is communicated with described flowrate control valve.
2. casing gas leakage detector according to claim 1, it is characterized in that, this detector also comprises the independent pressure table, and it is arranged on back up pad, described independent pressure table connects one and extends hollow stem, and this prolongation hollow stem is passed described back up pad and entered described box house.
3. casing gas leakage detector according to claim 1, is characterized in that, this detector also comprises two handles, is arranged on described back up pad both sides.
4. casing gas leakage detector according to claim 1, is characterized in that, the upper end of described flowmeter is supported with described back up pad by output terminal and is fixedly connected with, and the lower end of described flowmeter is supported with described back up pad by input end and is fixedly connected with.
5. casing gas leakage detector according to claim 4, is characterized in that, described flowrate control valve is arranged in described output terminal supporting.
CN 201220581939 2012-11-07 2012-11-07 Box gas leakage detector Expired - Fee Related CN202994400U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220581939 CN202994400U (en) 2012-11-07 2012-11-07 Box gas leakage detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220581939 CN202994400U (en) 2012-11-07 2012-11-07 Box gas leakage detector

Publications (1)

Publication Number Publication Date
CN202994400U true CN202994400U (en) 2013-06-12

Family

ID=48565572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220581939 Expired - Fee Related CN202994400U (en) 2012-11-07 2012-11-07 Box gas leakage detector

Country Status (1)

Country Link
CN (1) CN202994400U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880383A (en) * 2015-06-15 2015-09-02 胜利油田胜油测录工程技术有限公司 Portable in-situ density sensor calibration instrument
CN113390587A (en) * 2020-03-11 2021-09-14 深圳市美好创亿医疗科技股份有限公司 Method and system for detecting sealing performance of box body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880383A (en) * 2015-06-15 2015-09-02 胜利油田胜油测录工程技术有限公司 Portable in-situ density sensor calibration instrument
CN113390587A (en) * 2020-03-11 2021-09-14 深圳市美好创亿医疗科技股份有限公司 Method and system for detecting sealing performance of box body

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: WUHAN CITY BIDA ELECTROMECHANICAL CO., LTD.

Free format text: FORMER OWNER: WUHAN UNIVERSITY OF TECHNOLOGY

Effective date: 20150105

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 430070 WUHAN, HUBEI PROVINCE TO: 430223 WUHAN, HUBEI PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20150105

Address after: 430223 No. 35, Jiangxia Avenue, Jiangxia District, Hubei, Wuhan

Patentee after: Wuhan Bida Electromechanical Co., Ltd.

Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122

Patentee before: Wuhan University of Technology

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20151107

EXPY Termination of patent right or utility model