CN202928755U - Device for testing seepage of non-return valve - Google Patents

Device for testing seepage of non-return valve Download PDF

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Publication number
CN202928755U
CN202928755U CN 201220580449 CN201220580449U CN202928755U CN 202928755 U CN202928755 U CN 202928755U CN 201220580449 CN201220580449 CN 201220580449 CN 201220580449 U CN201220580449 U CN 201220580449U CN 202928755 U CN202928755 U CN 202928755U
Authority
CN
China
Prior art keywords
retaining valve
guide cylinder
testing device
return valve
annual disk
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 201220580449
Other languages
Chinese (zh)
Inventor
张程程
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.)
ZGPT DIESEL HEAVY INDUSTRY CO LTD
Original Assignee
ZGPT DIESEL HEAVY INDUSTRY 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 ZGPT DIESEL HEAVY INDUSTRY CO LTD filed Critical ZGPT DIESEL HEAVY INDUSTRY CO LTD
Priority to CN 201220580449 priority Critical patent/CN202928755U/en
Application granted granted Critical
Publication of CN202928755U publication Critical patent/CN202928755U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a device for testing the seepage of a non-return valve, comprising a housing, wherein the housing is provided with an openable and closeable vent hole, an annular disc connected with the housing, the annular disc is provided with a circular hole matched with the sealing cover of a non-return valve, the non-return valve can be embedded into the circular hole of the annular disc, but cannot pass through the circular hole, a guide cylinder is matched with the non-return valve, the guide cylinder and the non-return valve are connected in an embedded manner, the annular disc is connected with the guide cylinder, the guide cylinder is connected with a joint with a pressure meter, and the other end of the joint is connected with a water inlet switch. The device for testing the seepage of a non-return valve is prepared by a common material, is low in price, simple in structure, easy in assembling and simple in operation, and can effectively resolve the problem of sealing performance detection of the non-return valve.

Description

A kind of retaining valve leakage testing device
Technical field
The utility model relates to a kind of valve test device, particularly a kind of retaining valve leakage testing device.
Background technology
Retaining valve is a kind of very common parts of machinery industry, and its sealing quality usually can affect the performance of whole mechanical system.A kind of common retaining valve as shown in Figure 1, be interference fit between diagram gland bonnet 001 and guide 002, and smear sealant in its junction and seal, but still can occur that the numerous parts precision is defective, the not firm phenomenon of leaking that causes of sealing, bring negative effect for the manufacturing schedule of company.Due in actual industrial production, traditional tightness measuring device more complicated cost is higher, and the kind of applicable retaining valve is more single, therefore is difficult to satisfy real needs.The situation that enterprise faces has following two kinds usually: one, be difficult to find the proving installation that adapts to this retaining valve; Two, even if find the device that can satisfy the demands, also often because cost is too high, bring larger economic pressures to enterprise.Therefore, a kind of simple in structure, cheap, easy to operate retaining valve leakage testing device of design is very necessary.
The utility model content
The purpose of this utility model is to provide retaining valve leakage testing device a kind of simple in structure, cheap, easy to operate.
For achieving the above object, the technical scheme that the utility model adopts is: the retaining valve leakage testing device comprises cover cap, cover cap is provided with the air hole that can open and close, can adopt common thread protecting clog, be used for the air of discharger, make test result more accurate.
Annual disk is fixedly connected with cover cap, the general common welding method of method of attachment, but the good impermeability of junction between must guaranteeing both.
Annual disk is provided with the circular hole that is complementary with retaining valve, and this circular hole has different diameters, is complementary with the diameter of retaining valve different parts, and retaining valve can embed annual disk but can not pass through, and retaining valve and annual disk are fixed.Annual disk is provided with some screws in retaining valve guide one side, is at least two and is preferably four, and guide cylinder and retaining valve guide are complementary, and both embedded mode connects, and guide cylinder is connected and fixed by bolt and annual disk.
Described guide cylinder be provided with manometric joint and be connected, the joint other end is connected with water inlet switch.
Be the impermeability of assurance device integral body, the guide of annual disk and retaining valve, retaining valve and the connecting portion of guide cylinder all adopt O shape circle to seal.
When using this device, the annual disk of first retaining valve being packed into, then guide cylinder is installed, retaining valve is by O shape circle and both guarantee good sealing, and then water inlet switch and waterworks are installed with manometric joint.During test, this device cover cap is placed up, turned on plug, open water inlet switch, with the air emptying in device, when water is full of, plug is screwed on.Make the standard hydraulic pressure that water in this device reaches to be needed, whether gland bonnet and the guide junction of then observing retaining valve have seepage out, can judge whether retaining valve is qualified.
Above-mentioned retaining valve leakage testing device is made and is drawn materials easily, and cheap, this apparatus structure is simple, and assembling is easier to, operate also very simple, a highly effective difficult problem that solves the retaining valve sealing propertytest.
Description of drawings
Fig. 1 is the schematic diagram of common a kind of retaining valve.
Fig. 2 is retaining valve leakage testing device structure cut-open view.
Fig. 3 is the local enlarged diagram of institute's target retaining valve leakage E in Fig. 2
Embodiment
Below in conjunction with Figure of description, the utility model is made concrete elaboration.
shown in Figure 2, the retaining valve leakage testing device, comprise cover cap 1, be provided with plug 9 on cover cap 1, cover cap 1 is connected with annual disk 2 by welding manner, and welding must guarantee that impermeability both is good, annual disk 2 has the circular hole that is complementary with retaining valve gland bonnet external diameter, retaining valve can embed in the annual disk circular hole, but can not pass through circular hole, retaining valve and annual disk 2 junctions employing O shape circle enhanced leaktightness, annual disk 2 has four equally distributed screws in retaining valve guide one side that embeds, guide cylinder 4 is nested in the outside of retaining valve guide, nested place also adopts O shape circle enhanced leaktightness.Guide cylinder 4 is connected and fixed by bolt 5 and annual disk 2.
Guide cylinder 4 has circular hole and matches with joint 7 one ends that are provided with tensimeter 6, guarantees to connect impermeability.Joint 7 other ends are connected with ball valve 8, and ball valve 8 connects waterworks.
When using this device to test retaining valve impermeability, the annual disk 2 of first retaining valve being packed into, then guide cylinder 4 is installed, then install with manometric joint 7, ball valve 8 and waterworks.After connecting, cover cap 1 is whole up vertically to be placed, turn on plug 9, open ball valve 8, when water is full of whole device and air and drains, plug 9 is screwed on, observe tensimeter 6, guarantee the standard hydraulic pressure that hydraulic pressure in this device reaches to be needed, whether gland bonnet and the guide junction of then observing retaining valve as shown in Figure 3 have seepage out.

Claims (7)

1. retaining valve leakage testing device, it is characterized in that: comprise cover cap, cover cap is provided with air hole to be opened/closed, the annual disk that is connected with cover cap, annual disk is provided with the circular hole that is complementary with the retaining valve gland bonnet, and retaining valve can embed annual disk but can not pass through; Guide cylinder and retaining valve guide are complementary, and both embedded mode connects; Annual disk is connected with guide cylinder, guide cylinder be provided with manometric joint and be connected, the joint other end is connected with water inlet switch.
2. retaining valve leakage testing device as claimed in claim 1, is characterized in that described air hole to be opened/closed adopts plug.
3. retaining valve leakage testing device as claimed in claim 1, is characterized in that described cover cap and annual disk adopt the mode of welding to be tightly connected.
4. retaining valve leakage testing device as claimed in claim 1, is characterized in that described annual disk and guide cylinder adopt four bolts to be connected and fixed.
5. retaining valve leakage testing device as claimed in claim 1 is characterized in that described annual disk and guide cylinder and retaining valve junction adopt respectively seal with O ring.
6. retaining valve leakage testing device as claimed in claim 1, is characterized in that described guide cylinder is provided with perforate and matches with joint one end.
7. retaining valve leakage testing device as claimed in claim 1, is characterized in that described guide cylinder is nested in the outside of retaining valve guide.
CN 201220580449 2012-11-05 2012-11-05 Device for testing seepage of non-return valve Expired - Fee Related CN202928755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220580449 CN202928755U (en) 2012-11-05 2012-11-05 Device for testing seepage of non-return valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220580449 CN202928755U (en) 2012-11-05 2012-11-05 Device for testing seepage of non-return valve

Publications (1)

Publication Number Publication Date
CN202928755U true CN202928755U (en) 2013-05-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220580449 Expired - Fee Related CN202928755U (en) 2012-11-05 2012-11-05 Device for testing seepage of non-return valve

Country Status (1)

Country Link
CN (1) CN202928755U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048798A (en) * 2014-06-20 2014-09-17 四川长虹电器股份有限公司 One-way valve leakage detection method and air conditioner
CN106289671A (en) * 2016-08-08 2017-01-04 广船国际有限公司 A kind of watertightness test device
CN107121340A (en) * 2016-02-25 2017-09-01 中国石油化工股份有限公司 Reverse pressure testing device for check valve
CN110333062A (en) * 2019-05-29 2019-10-15 中石化石油机械股份有限公司研究院 A kind of pump valve dynamic performance and testing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048798A (en) * 2014-06-20 2014-09-17 四川长虹电器股份有限公司 One-way valve leakage detection method and air conditioner
CN107121340A (en) * 2016-02-25 2017-09-01 中国石油化工股份有限公司 Reverse pressure testing device for check valve
CN106289671A (en) * 2016-08-08 2017-01-04 广船国际有限公司 A kind of watertightness test device
CN110333062A (en) * 2019-05-29 2019-10-15 中石化石油机械股份有限公司研究院 A kind of pump valve dynamic performance and testing

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130508

Termination date: 20141105

EXPY Termination of patent right or utility model