CN212963906U

CN212963906U - Valve leak detection device

Info

Publication number: CN212963906U
Application number: CN202021726105.2U
Authority: CN
Inventors: 丁勇
Original assignee: Zhenjiang Zhiming Machinery Manufacturing Co ltd
Current assignee: Zhenjiang Zhiming Machinery Manufacturing Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-13
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a valve leak detection device, which comprises a test support, wherein the upper bottom and the top of the test support are respectively provided with a first electric cylinder and a second electric cylinder, the telescopic columns of the first electric cylinder and the second electric cylinder are respectively provided with a first detection support and a second detection support, and the tail ends of the telescopic columns of the first electric cylinder and the second electric cylinder are respectively provided with a first test pipeline and a second test pipeline; the first detection support is provided with a third electric cylinder and a first piston cylinder, the second detection support is provided with a fourth electric cylinder and a second piston cylinder, the third electric cylinder is connected with a piston of the first piston cylinder, the first piston cylinder is connected with a first test pipeline, the fourth electric cylinder is connected with a piston of the second piston cylinder, the second piston cylinder is connected with a second test pipeline, and the first test pipeline and the second test pipeline are respectively provided with a first pressure gauge and a second pressure gauge; the valve to be detected is detachably arranged between the first test pipeline and the second test pipeline through the first connecting flange and the second connecting flange.

Description

Valve leak detection device

Technical Field

The utility model belongs to the technical field of the valve detects, concretely relates to valve leak hunting device.

Background

The valve is a common opening and closing part used in gas or liquid circulation, is generally used in two important industries of gas pipe network and water conservancy transportation, and in the valve manufacturing industry, a valve product which is just produced needs to be subjected to sealing performance test before leaving a factory. The valve with qualified sealing performance is a product with qualified quality. The existing valve leakage detection device is used for detecting leakage by introducing gas into a valve through an independent inflating device, and some devices are required to collect gas, so that the structure is complex and the operation is inconvenient.

If a double piston valve leak hunting device that publication number CN207074106U disclosed, double piston valve leak hunting device is being connected and is treating the leak hunting valve, and double piston valve leak hunting device includes nitrogen cylinder, manometer, atmospheric valve, and the nitrogen cylinder with wait to treat that the leak hunting valve passes through high-pressure line intercommunication, the last manometer and the atmospheric valve of being provided with of high-pressure line. Through high-pressure pipeline intercommunication nitrogen cylinder with wait to examine the valve that leaks, set up the manometer on high-pressure pipeline, from the nitrogen cylinder through high-pressure pipeline to waiting to examine the valve that leaks aerify, after inflation pressure reached the detection standard who waits to examine the bearing capacity of valve, detect whether there is the leakage in the valve through observing the numerical value change of the manometer on the high-pressure pipeline. And a stop valve is arranged, and the nitrogen cylinder is regulated and controlled to ventilate the high-pressure pipeline through the stop valve. A nitrogen recovery bottle was set to recover the nitrogen used in the test. The running condition of the valve can be judged simply, quickly and safely without pressing.

If again like the kind of valve leak hunting testboard that publication number CN204694429U discloses, including the test jig, be equipped with fixing base and thrust unit on the test jig respectively, still include intake pipe and outlet duct, thrust unit and intake pipe fixed connection, intake pipe one end is connected with the air pump, other end tip is equipped with the flange piece, still including examining the valve of examining, fixing base both ends opening, fixing base one end opening and outlet duct one end fixed connection, examine the valve export and fix on fixing base other end opening, and can drive the intake pipe through the thrust unit flange piece with examine the valve entry sealing connection of examining, make the intake pipe, the outlet duct with examine the valve pocket intercommunication of examining the valve, be equipped with main manometer and vice manometer on intake pipe and the outlet duct respectively, still be equipped with admission valve and air outlet valve. The utility model discloses a main pressure gauge and vice manometer are synthesized and are judged interior hourglass or leak outward, and can conveniently find outer leak source.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a valve leak hunting device, convenient operation need not to detect through other gases.

The utility model provides a following technical scheme:

a valve leak detection device is characterized by comprising a test support, wherein a first electric cylinder and a second electric cylinder are respectively arranged at the upper bottom and the top of the test support, a first detection support and a second detection support are respectively arranged on telescopic columns of the first electric cylinder and the second electric cylinder, and a first test pipeline and a second test pipeline are respectively arranged at the tail ends of the telescopic columns of the first electric cylinder and the second electric cylinder; the first detection support is provided with a third electric cylinder and a first piston cylinder, the second detection support is provided with a fourth electric cylinder and a second piston cylinder, the third electric cylinder is connected with a piston of the first piston cylinder, the first piston cylinder is connected with the first test pipeline, the fourth electric cylinder is connected with a piston of the second piston cylinder, the second piston cylinder is connected with the second test pipeline, and the first test pipeline and the second test pipeline are respectively provided with a first pressure gauge and a second pressure gauge; wait to examine the valve and establish through first flange and second flange detachable first test tube with between the second test tube.

Preferably, the side wall of the test support is provided with a slide rail, and the third electric cylinder, the fourth electric cylinder, the tail end of the first detection support and the tail end of the second detection support are provided with slide blocks matched with the slide rail.

Preferably, the main bodies of the first detection support and the second detection support are prisms, support mounting holes matched with the first detection support and the second detection support are formed in telescopic rods of the first electric cylinder and the second electric cylinder, and the first detection support and the second detection support penetrate through the support mounting holes.

Preferably, the first connecting flange is fixed at the tail end of the first testing pipeline, the second connecting flange is fixed at the tail end of the second testing pipeline, and sealing gaskets are arranged in the first connecting flange and the second connecting flange.

Preferably, the first electric cylinder, the second electric cylinder, the third electric cylinder and the fourth electric cylinder are powered by a power module, and the first electric cylinder, the second electric cylinder, the third electric cylinder and the fourth electric cylinder are all provided with independent control switches.

Preferably, the test support bottom is equipped with the horse wheel, the test support lateral wall is equipped with the removal handrail.

The utility model has the advantages that: replace traditional gas charging apparatus with cylinder and piston cylinder, save the gas collection process, cylinder independent control, the testing process is safer, and the test result is reliable, and the testing process is simple and convenient, and slidable design can be applicable to the valve of various lengths for valve leak hunting device, and the suitability is wider.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic structural diagram of the inner leak detection of the present invention.

Detailed Description

As shown in the figures, the valve leakage detection device provided by the utility model is characterized by comprising a test support 1, wherein the bottom and the top of the test support 1 are respectively provided with a first electric cylinder 2 and a second electric cylinder 3, telescopic columns of the first electric cylinder 2 and the second electric cylinder 3 are respectively provided with a first detection support 4 and a second detection support 5, and the tail ends of the telescopic columns of the first electric cylinder 2 and the second electric cylinder 3 are respectively provided with a first test pipeline 6 and a second test pipeline 7; a third electric cylinder 8 and a first piston cylinder 10 are arranged on the first detection support 4, a fourth electric cylinder 9 and a second piston cylinder 11 are arranged on the second detection support 5, the third electric cylinder 8 is connected with a piston of the first piston cylinder 10, the first piston cylinder 10 is connected with the first test pipeline 6, the fourth electric cylinder 9 is connected with a piston of the second piston cylinder 11, the second piston cylinder 11 is connected with the second test pipeline 7, and a first pressure gauge 12 and a second pressure gauge 13 are respectively arranged on the first test pipeline 6 and the second test pipeline 7; the valve 20 to be tested is detachably arranged between the first test line 6 and the second test line 7 via the first connecting flange 14 and the second connecting flange 15. First flange 14 is fixed at first test pipeline 6 end, second flange 15 is fixed at second test pipeline 7 end, be equipped with sealed the pad in first flange 14 and the second flange 15, first flange 14 is connected as an organic whole with first test pipeline 6 and second test pipeline 7 respectively with second flange 15, will examine the valve 20 compaction along with the extension of first electronic jar 2 and the electronic jar 3 of second, sealed problem that can effectively prevent gas leakage.

Be equipped with the slide rail on the lateral wall of test support 1, third electronic jar 8, fourth electronic jar 9, first detection support 4 end and second detection support 5 end all are equipped with the slider that matches with the slide rail. First detection support 4 and second detect support 5 and drive third electronic jar 8 and fourth electronic jar 9 along the slide rail motion under the flexible drive of first electronic jar 2 and the electronic jar 3 of second respectively for first flange 14 and second flange 15 are pressing tightly and are waiting to examine the in-process of valve 20 more steady, and can not deviate.

The main body that first detection support 4 and second detected support 5 is prismatic, is equipped with the support mounting hole that matches with first detection support 4 and second detection support 5 on the telescopic link of first electronic jar 2 and the electronic jar 3 of second, and first detection support 4 and second detection support 5 wear in the support mounting hole. Prismatic structural design can effectively avoid first detection support 4 and second to detect support 5 and produce rotatoryly, leads to first test tube 6 and second test tube 7 to produce rotatoryly through equipment long-term use, causes the condition such as unilateral wearing and tearing deformation for the slide rail to make can't with wait to examine 20 both ends of check valve relative, cause the equipment can't use.

First electronic jar 2, electronic jar 3 of second, electronic jar 8 of third and the electronic jar 9 of fourth are supplied power by power module, and first electronic jar 2, the electronic jar 3 of second, the electronic jar 8 of third and the electronic jar 9 of fourth all are equipped with solitary control switch. The cylinder is controlled alone and can make valve leak hunting device can detect interior hourglass and can detect outer hourglass.

The bottom end of the test support 1 is provided with a horse wheel 16, and the side wall of the test support 1 is provided with a movable handrail 17, so that the whole valve leakage detection device can be conveniently moved and carried.

During the use, at first control first electronic jar 2 and the shortening of second electronic jar 3 (wait to examine under the condition that valve 20 is shorter, can only shorten second electronic jar 3, guarantee after second electronic jar 3 shortens, it can to examine valve 20 can put into), then control third electronic jar 8 and fourth electronic jar 9 shorten to the shortest or extend to the longest, the piston of pulling first piston section of thick bamboo 10 and second piston section of thick bamboo 11 is inhaled the air in first piston section of thick bamboo 10 and the second piston section of thick bamboo 11 and is filled or extrude, will examine valve 20 one end afterwards and put into first flange 14, again control first electronic jar 2 and the extension of second electronic jar 3, will examine valve 20 and compress tightly, it begins the test to guarantee after the tie point does not leak gas. When the outward leakage is detected, the valve 20 to be detected is opened, after the third electric cylinder 8 and the fourth electric cylinder 9 are extended or shortened for a certain distance, the piston is pushed in or pulled out, the first test pipeline 6, the second test pipeline 7 and the valve cavity of the valve 20 to be detected are inflated for pressurization or air suction for pressure reduction, the first pressure gauge 12 and the second pressure gauge 13 keep the positions of the third electric cylinder 8 and the fourth electric cylinder 9 unchanged after reaching a certain numerical value, after a period of time, whether the valve 20 to be detected leaks outward can be judged through whether the numerical values of the first pressure gauge 12 and the second pressure gauge 13 are changed, if the valve 20 to be detected leaks outward, the valve 20 to be detected is closed, and if the numerical value of the first pressure gauge 12 is changed and the numerical value of the second pressure gauge 13 is not changed, the outward leakage at the lower side of the valve 20; similarly, if the value of the first pressure gauge 12 is not changed and the value of the second pressure gauge 13 is changed, the upper side leakage of the valve 20 to be detected can be judged; when leaking in the detection, close and wait to examine valve 20, control third electronic jar 8 extension or shorten, observe whether the numerical value of second manometer 13 changes, if the numerical value of second manometer 13 changes, explain to wait to examine valve 20 and leak in, the same reason, control fourth electronic jar 9 is flexible, and it also can realize interior hourglass detection to observe the numerical value change of first manometer 12.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The valve leak detection device is characterized by comprising a test support (1), wherein a first electric cylinder (2) and a second electric cylinder (3) are respectively arranged at the upper bottom and the top of the test support (1), a first detection support (4) and a second detection support (5) are respectively arranged on telescopic columns of the first electric cylinder (2) and the second electric cylinder (3), and a first test pipeline (6) and a second test pipeline (7) are respectively arranged at the tail ends of the telescopic columns of the first electric cylinder (2) and the second electric cylinder (3); a third electric cylinder (8) and a first piston cylinder (10) are arranged on the first detection support (4), a fourth electric cylinder (9) and a second piston cylinder (11) are arranged on the second detection support (5), the third electric cylinder (8) is connected with a piston of the first piston cylinder (10), the first piston cylinder (10) is connected with the first test pipeline (6), the fourth electric cylinder (9) is connected with a piston of the second piston cylinder (11), the second piston cylinder (11) is connected with the second test pipeline (7), and a first pressure gauge (12) and a second pressure gauge (13) are respectively arranged on the first test pipeline (6) and the second test pipeline (7); the valve (20) to be tested is detachably arranged between the first test pipeline (6) and the second test pipeline (7) through a first connecting flange (14) and a second connecting flange (15).

2. The valve leak detection device according to claim 1, characterized in that slide rails are arranged on the side wall of the test support (1), and slide blocks matched with the slide rails are arranged at the third electric cylinder (8), the fourth electric cylinder (9), the tail end of the first detection support (4) and the tail end of the second detection support (5).

3. The valve leak detection device according to claim 1, characterized in that the first detection support (4) and the second detection support (5) are prism-shaped in body, telescopic rods of the first electric cylinder (2) and the second electric cylinder (3) are provided with support mounting holes matched with the first detection support (4) and the second detection support (5), and the first detection support (4) and the second detection support (5) penetrate through the support mounting holes.

4. Valve leak detection apparatus according to claim 1, characterized in that the first connecting flange (14) is fixed to the end of the first test line (6) and the second connecting flange (15) is fixed to the end of the second test line (7), and that sealing gaskets are provided in the first connecting flange (14) and the second connecting flange (15).

5. Valve leak detection apparatus according to claim 1, wherein the first electric cylinder (2), the second electric cylinder (3), the third electric cylinder (8) and the fourth electric cylinder (9) are powered by a power module, and the first electric cylinder (2), the second electric cylinder (3), the third electric cylinder (8) and the fourth electric cylinder (9) are provided with separate control switches.

6. Valve leak detection apparatus according to claim 1, wherein the bottom end of the test support (1) is provided with a horseback wheel (16), and the side wall of the test support (1) is provided with a movable handrail (17).