CN217084110U

CN217084110U - Auxiliary device for valve test

Info

Publication number: CN217084110U
Application number: CN202220544978.4U
Authority: CN
Inventors: 陈华凯; 陈华生; 陈春莲; 陈春兰; 陈永光; 黄文红; 徐顺恋
Original assignee: FUJIAN ZHONGSHI SPECICAL VALVE MANUFACTURING CO LTD
Current assignee: FUJIAN ZHONGSHI SPECICAL VALVE MANUFACTURING CO LTD
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-07-29
Anticipated expiration: 2032-03-14

Abstract

The utility model relates to an auxiliary device for valve is experimental, source interface, booster mechanism, output interface, first multi-way connection, second multi-way connection, switching-over valve and medium pipeline, source interface, booster mechanism pass through the medium pipeline with output interface and are connected, and the source interface is used for connecting the experimental medium source of valve, and output interface is used for connecting by experimental valve and/or by the used test device of experimental valve. The first multi-way joint is connected with the second multi-way joint through a medium pipeline, the reversing valve is arranged on the medium pipeline between the first multi-way joint and the second multi-way joint, the first multi-way joint is also simultaneously connected with the source interface and the pressurization mechanism through the medium pipeline respectively, and the second multi-way joint is also simultaneously connected with the output interface and the pressurization mechanism through the medium pipeline respectively. The utility model discloses a medium pipeline provides the experimental medium of required pressure for the valve is experimental, and the pressure that experimental medium passes through the higher and experimental medium of efficiency can not reduced by booster mechanism and the decompression structure that attaches.

Description

Auxiliary device for valve test

Technical Field

The utility model relates to a valve test device field, concretely relates to an auxiliary device for valve is experimental.

Background

With the progress of science and technology, the performance requirements of valves are increasing day by day, for example, low temperature valves and the like, and the valves need to be tested for airtightness under the conditions of low temperature and the like. The applicant discloses a test device for testing a safety valve by using a test medium passing through a liquid nitrogen cold zone in a Chinese invention patent application with the publication number of CN111665039A, wherein the test device is also matched with an auxiliary device for providing the test medium with certain pressure in application, and the auxiliary device is used for providing the test medium with the required pressure for the test process.

The chinese patent application with publication number CN102004018A discloses a helium pressurization and recovery system, which comprises a helium bottle group and a valve to be tested, wherein the helium pressurization system comprises a first pressurization valve connected with a bottle opening of a helium bottle and a second pressurization valve connected with the valve to be tested, a pressurization pump for connecting the first pressurization valve and the second pressurization valve is arranged between the first pressurization valve and the second pressurization valve, and a helium recovery system for enabling helium to flow back to the helium bottle group is further arranged between the helium bottle group and the valve to be tested. According to the scheme, helium pressurization and recovery are achieved, however, as disclosed in the publication document [0028], when the gas booster pump does not work, helium enters the valve to be tested through the first booster valve, the gas booster pump and the second booster valve, the helium is discharged from the gas source bottle and is reduced in pressure through the pressure reduction structure in the gas booster pump due to the fact that the efficiency is slow when the helium passes through the gas booster pump, helium pressure is wasted, and test efficiency is affected. Moreover, when the pressure of helium in the gas source bottle or the medium pipeline is high, the helium directly enters the gas booster pump and affects the gas booster pump, so that a pressure reducing valve needs to be added in front of the gas booster pump, and the added pressure reducing valve further causes the problems. Moreover, in a helium bottle of 15Mpa, the pressure can meet some test requirements, and the waste of pressure caused by the structure that helium needs to be transferred by the gas booster pump when the gas booster pump does not work will bring more influence.

Disclosure of Invention

The utility model provides an auxiliary device for valve is experimental to solve above-mentioned problem.

The utility model adopts the following technical scheme:

the utility model provides an auxiliary device for valve is experimental, source interface, booster mechanism, output interface, first multi-way connection, second multi-way connection, switching-over valve and medium pipeline, source interface, booster mechanism pass through the medium pipeline with output interface and are connected, booster mechanism is used for the experimental medium pressure boost, source interface is used for connecting the experimental medium source of valve, output interface is used for connecting by experimental valve and/or by the medium input of the used test device of experimental valve. The first multi-way joint is connected with the second multi-way joint through the medium pipeline, the reversing valve is arranged on the medium pipeline between the first multi-way joint and the second multi-way joint and is used for controlling the on-off of the medium pipeline, the first multi-way joint is also simultaneously connected with the source interface and the medium input end of the pressurization mechanism through the medium pipeline, and the second multi-way joint is also simultaneously connected with the output interface and the medium output end of the pressurization mechanism through the medium pipeline. The reversing valve is used for opening when the test medium flows from the source connector to the output connector and the pressurization mechanism is closed.

Further:

the utility model provides an auxiliary device for valve is experimental still includes backward flow interface and retrieves the interface, and the backward flow interface is used for connecting by experimental valve and/or by the used medium output of experimental device of experimental valve, retrieves the recovery container that the interface is used for connecting experimental medium, and experimental medium can be by backward flow interface to retrieving the interface removal setting.

The backflow port is connected with the first multi-way joint through the medium pipeline. The recovery interface is connected with the second multi-way joint through a medium pipeline. The utility model provides an auxiliary device for valve test still includes the source valve, the output valve, the backwash valve and the recovery valve, the source valve is located the medium pipeline between first multi-way connection and above-mentioned source interface and is used for controlling the break-make of this department's medium pipeline, the output valve is located the medium pipeline between second multi-way connection and above-mentioned output interface and is used for controlling the break-make of this department's medium pipeline, the backwash valve is located the medium pipeline between first multi-way connection and the return connection and is used for controlling the break-make of this department's medium pipeline, the recovery valve is located the medium pipeline between second multi-way connection and the recovery interface and is used for controlling the break-make of this department's medium pipeline.

The auxiliary device for the valve test further comprises two pressure transmitters, and the two pressure transmitters are respectively used for detecting the pressure in the medium pipeline between the source interface and the source valve and between the output interface and the output valve.

The auxiliary device for the valve test further comprises a pressure reducing valve and a heating mechanism, the pressure reducing valve is arranged on the medium pipeline between the first multi-way joint and the medium input end of the pressurization mechanism, the heating mechanism is arranged on the medium pipeline between the first multi-way joint and the reflux valve, and the heating mechanism is used for heating a test medium in the medium pipeline.

The utility model provides an auxiliary device for valve test still includes third multi-way connection, extends interface and extends the valve, and above-mentioned medium pipeline between above-mentioned return port and above-mentioned return valve is located to the third multi-way connection, extends the interface and passes through medium pipeline access third multi-way connection, extends the valve and locates the medium pipeline between third multi-way connection and the extension interface and be used for controlling the break-make of this department medium pipeline.

The utility model provides an auxiliary device for valve test still includes extends the module, extends the module and is connected by above-mentioned medium pipeline, and the medium pipeline that extends the module place is connected with the aforesaid is extended the interface and can be dismantled. The expansion module comprises a bubble recording device, an oil-water separator and a flowmeter which are sequentially connected in series through a medium pipeline.

The test medium is helium. The medium pipeline is a high-pressure gas pipeline.

The utility model provides an auxiliary device for valve test still includes the device cabinet, and above-mentioned medium pipeline is located the device cabinet and sets up, and device cabinet top surface is this auxiliary device's the platform of controlling. The source interface, the output interface, the backflow interface and the recovery interface all penetrate through the outer edge of the device cabinet and extend to the outside of the device cabinet.

The reversing valve, the source valve, the output valve, the backflow valve and the recovery valve are manually operated medium pipeline on-off control mechanisms, and the operation ends of the reversing valve, the source valve, the output valve, the backflow valve and the recovery valve penetrate through the top surface of the device cabinet and extend to the device cabinet. The source interface, the recovery interface are arranged on one side face of the device cabinet, the output interface and the backflow interface are arranged on the other side face of the device cabinet.

The expansion interface and the expansion valve extend to the top surface of the device cabinet through the device cabinet. The expansion module further comprises a storage cabinet, the storage cabinet is arranged on the top surface of the device cabinet, and the bubble recording device, the oil-water separator and the flowmeter are arranged in the storage cabinet.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

first, the utility model discloses a medium pipeline (like high-pressurepipe) provides the experimental medium (like the helium) of required pressure for the valve is experimental, and through the setting of switching-over valve, open the switching-over valve and can make experimental medium by the medium source, the source interface, first multi-way joint, the switching-over valve, second multi-way joint is until the output interface, middle experimental medium does not pass through booster mechanism, experimental medium passes through the pressure that efficiency is higher and experimental medium can not reduced by booster mechanism and the decompression structure that attaches, be favorable to promoting the pressure of experimental efficiency and furthest utilization medium source self. And under the condition that needs supercharging mechanism work, also only need close the switching-over valve open supercharging mechanism can, convenient operation is swift.

Second, the utility model discloses an among the further scheme, retrieve the test medium after will testing to special recovery container rather than directly retrieving to former medium source, can inject mode such as through the test medium used repeatedly number of times to in the recovery container, avoid the test medium of retrieving because used repeatedly number of times is too much and at every turn use all can avoid sneaking into influences such as air test medium quality, be favorable to guaranteeing the accuracy of test result and deciding and greatly promote the utilization efficiency of test medium.

Drawings

Fig. 1 is a schematic structural diagram of the auxiliary device of the present invention.

Fig. 2 is a schematic diagram of a circuit structure of the auxiliary device of the present invention in a use state.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1 and 2, an auxiliary device for a valve test includes a source interface 11, a pressurization mechanism 21, an output interface 12, a first multi-way connector 31, a second multi-way connector 32, a reversing valve 41, a return interface 13, a recovery interface 14, a source valve 42, an output valve 43, a return valve 44, a recovery valve 45, a pressure reducing valve 22, a heating mechanism 23, a third multi-way connector 33, an expansion interface 15, an expansion valve 46, an expansion module, an apparatus cabinet 6, two pressure transmitters 24, and a medium pipeline, where the medium pipeline is located in the apparatus cabinet 6, and a top surface of the apparatus cabinet 6 is a console of the auxiliary device. The device cabinet 6 is a cabinet body with a polyhedral structure. The source interface 11 is used for connecting a medium source 7 for valve test, the recovery interface 14 is used for connecting a recovery container 8 for test medium, the output interface 12 is used for connecting a tested valve and/or a medium input end of a test device for the tested valve, and the return interface 13 is used for connecting a medium output end of the tested valve and/or the test device for the tested valve. In valve tests such as stop valves and the like, the output interface 12 and the backflow interface 13 are respectively connected with the medium input end and the medium output end of a tested valve; in the valve test such as a safety valve, the output interface 12 and the backflow interface 13 are connected to corresponding test devices; of course, the output port 12 and the return port 13 may be connected to the tested valve and/or the medium input port of the testing device used by the tested valve through a tee joint or the like as in the background art. In the valve test, specifically, in the valve low-temperature test, helium is a common test medium, specifically, in the embodiment, helium is used as the test medium for specific description, and the corresponding medium pipeline is a high-pressure gas pipeline. I.e. the medium source 7 is a helium tank and the recovery vessel 8 is an empty tank. In fig. 2, a plurality of media sources 7 are shown in parallel as a schematic.

Referring to fig. 1, the source port 11, the source valve 42, the first multi-way joint 31, the direction valve 41, the second multi-way joint 32, the output valve 43, and the output port 12 are connected in sequence by a medium pipe. The first multi-way joint 31, the pressure reducing valve 22, the medium input end of the pressurization mechanism 21, the medium output end of the pressurization mechanism 21, and the second multi-way joint 32 are also connected in this order by a medium pipe. The second multi-way joint 32 is also connected to the recovery valve 45 and the recovery port 14 in this order via a medium line. The third multi-way joint 33, the expansion valve 46, and the expansion port 15 are connected to the return port 13 in this order via a medium line. The third multi-way joint 33 is also connected to the return valve 44, the heating mechanism 23, and the first multi-way joint 31 in this order via a medium line.

With continued reference to fig. 1, it can be seen from the above description that the first multi-way connector 31 and the second multi-way connector 32 respectively require four connection ports, i.e. both of them are four-way structure connectors. In a similar way, the third multi-way connector is a three-way structure connector. The pressurization mechanism 21 serves to pressurize the test medium. A booster mechanism 21 such as a pneumatic booster pump arrangement is commonly used. The heating mechanism 23 is used for heating the test medium in the medium pipeline. Because the valve needs low temperature and high pressure to test, the pressurizing mechanism 21 can test the pressure of the test medium at the output interface 12, and the heating mechanism 23 can pressurize and load the test medium with low temperature into the recovery container 8 after raising the temperature when recovering the test medium. The source valve 42, the reversing valve 41, the output valve 43, the return valve 44, the recovery valve 45 and the expansion valve 46 are all valve structures for controlling the on-off of the medium pipeline. The pressure reducing valve 22 is a pressure reducing structure for reducing the pressure of the test medium. The two pressure transmitters 24 are used to detect the pressure in the medium lines between the source port 11 and the source valve 42, and between the output port 12 and the output valve 43, respectively, that is, the two pressure transmitters are connected to the medium lines at the positions through three-way connections, respectively.

Referring to fig. 1 and 2, the source interface 11, the output interface 12, the return interface 13, the recovery interface 14, and the expansion interface 15 all extend through the outer edge of the device cabinet 6 to the outside of the device cabinet 6. The source interface 11 and the recovery interface 14 are disposed on one side surface of the device cabinet 6, and the output interface 12 and the return interface 13 are disposed on the other side surface of the device cabinet 6, specifically, the two side surfaces are oppositely disposed. The source interface 11, the output interface 12, the backflow interface 13 and the recovery interface 14 are all high-pressure gas pipeline interfaces with threaded connecting components. The structure of 6 both sides of device cabinet is located respectively to the aforesaid with this interface, can be in the valve test, place medium source 7 and recovery container 8 in 6 one sides of device cabinet and will be placed 6 opposite sides of device cabinet by experimental valve and experimental required structure, and the equipment of the process of being convenient for, material are arranged, the use of the auxiliary device of being convenient for. The utility model discloses an among the auxiliary device for the valve test, above-mentioned source valve 42, switching-over valve 41, output valve 43, reflux valve 44, recovery valve 45, expansion valve 46 all can set up to electrical control's valve structure as in the background art, realize the valve test process through automation methods such as PLC, also can set up to the valve structure of manual rotation control mode, specifically like ball valve etc.. Specifically, the change valve 41, the source valve 42, the output valve 43, the return valve 44, the recovery valve 45, and the expansion valve 46 are manually operated on/off control mechanisms for the medium pipeline, and respective operation ends of the manual operation mechanisms extend to the top surface of the device cabinet 6 and are disposed on the device cabinet 6.

With continued reference to fig. 1 and 2, the expansion modules are connected by the medium pipelines, and the medium pipelines where the expansion modules are located are detachably connected to the expansion interfaces 15. The expansion interface 15 extends through the top surface of the device cabinet 6 to the device cabinet 6. Specifically, the expansion interface 15 is a quick-connection type gas pipeline interface structure, and a medium pipeline where the expansion module is located is also provided with a quick interface 16 matched with the expansion interface 15. In this embodiment, the expansion interface 15 can be used as a pressure relief port when not connected to the quick interface 16. The expansion module comprises a bubble recorder 51, an oil-water separator 52, a flow meter 53 and a storage cabinet 54 arranged on the top surface of the device cabinet 6, which are connected in series in sequence through a medium pipeline. Since the expansion module of this embodiment is not applied in a high-pressure environment, the medium pipeline connecting the expansion module may also be a common gas pipeline. The bubble trap 51, the oil-water separator 52, and the flow meter 53 are disposed in the storage cabinet 54. Under the condition that the backflow interface 13 is connected with the medium output end of the tested valve, if the leakage amount of the valve in the test process needs to be detected, the leakage amount can be detected by inserting the quick interface 16 into the expansion interface 15 and depending on the bubble recorder 51 and the flowmeter 53. The storage cabinet 54, which is provided with the expansion module on the top surface of the device cabinet 6, facilitates the use and storage of the expansion module and the use of auxiliary devices.

With continuing reference to fig. 1 and fig. 2, next, taking the test of the stop valve as an example, the use process of the auxiliary device of the present invention is described as follows: the medium source 7 and the recovery container 8 are respectively connected to the source interface 11 and the recovery interface 14, the output interface 12 and the return interface 13 are respectively connected to the medium input end and the output end of the tested valve, and the connection between the expansion interface 15 and the quick interface 16 is disconnected. When the pressure of the medium source 7 container is high, the reversing valve 41, the output valve 43 and the expansion valve 46 are opened, the return valve 44 and the recovery valve 45 are ensured to be in a closed state, and then the source valve 42 is opened, so that the test medium enters the medium pipeline. When the pressure in the medium pipeline is lower than the pressure required by the test, the reversing valve 41 is closed, the pressurization mechanism 21 is started until the pressure is met, and the test is carried out. In the test process, if leakage amount detection is required, the quick interface 16 is inserted into the expansion interface 15, and leakage amount detection is completed through the expansion module. In the test process or after the test is completed, the pressure in the medium pipeline needs to be relieved, and the pressure can be relieved through the expansion interface 15 when the quick interface 16 is disconnected from the expansion interface 15. Or other requirements can be met by accessing the corresponding structure expansion module into the expansion interface 15. After the test is finished, the test medium is recovered by opening the return valve 44 and the recovery valve 45 and starting the pressurization mechanism 21 while ensuring that the source valve 42, the selector valve 41, the output valve 43, and the expansion valve 46 are in the closed state.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The auxiliary device for the valve test comprises a source interface, a pressurization mechanism, an output interface and a medium pipeline, wherein the source interface, the pressurization mechanism and the output interface are connected through the medium pipeline; the method is characterized in that: the first multi-way joint is connected with the second multi-way joint through the medium pipeline, the reversing valve is arranged on the medium pipeline between the first multi-way joint and the second multi-way joint and is used for controlling the on-off of the medium pipeline, the first multi-way joint is also simultaneously connected with the source interface and the medium input end of the supercharging mechanism through the medium pipeline, and the second multi-way joint is also simultaneously connected with the output interface and the medium output end of the supercharging mechanism through the medium pipeline; the directional valve is used for opening when the test medium flows from the source interface to the output interface and the pressurization mechanism is closed.

2. An auxiliary device for valve test according to claim 1, wherein: the test device further comprises a backflow interface and a recovery interface, the backflow interface is used for being connected with a tested valve and/or a medium output end of a test device used by the tested valve, the recovery interface is used for being connected with a recovery container of the test medium, and the test medium can be movably arranged from the backflow interface to the recovery interface.

3. An auxiliary device for valve test according to claim 2, wherein: the backflow interface is connected with the first multi-way joint through the medium pipeline; the recycling connector is connected with the second multi-way joint through a medium pipeline; the source valve is arranged on a medium pipeline between the first multi-way connector and the source interface and used for controlling the on-off of the medium pipeline, the output valve is arranged on a medium pipeline between the second multi-way connector and the output interface and used for controlling the on-off of the medium pipeline, the reflux valve is arranged on a medium pipeline between the first multi-way connector and the reflux interface and used for controlling the on-off of the medium pipeline, and the recovery valve is arranged on a medium pipeline between the second multi-way connector and the recovery interface and used for controlling the on-off of the medium pipeline.

4. An auxiliary device for valve test according to claim 3, wherein: still include relief pressure valve and heating mechanism, the relief pressure valve is located first multi-way connection with between the medium input of booster mechanism the medium pipeline, heating mechanism locate first multi-way connection with medium pipeline between the return valve, heating mechanism is used for heating for the test medium in the medium pipeline.

5. An auxiliary device for valve test according to claim 3, wherein: the expansion valve is arranged on the medium pipeline between the third multi-way joint and the expansion interface and used for controlling the on-off of the medium pipeline.

6. An auxiliary device for valve test according to claim 5, wherein: the expansion module is connected by the medium pipeline, and the medium pipeline where the expansion module is located is detachably connected with the expansion interface; the expansion module comprises a bubble recording device, an oil-water separator and a flowmeter which are sequentially connected in series through a medium pipeline.

7. An auxiliary device for valve testing according to any one of claims 1 to 6, wherein: the test medium is helium; the medium pipeline is a high-pressure gas pipeline.

8. An auxiliary device for valve testing according to any of claims 3-6, wherein: the device comprises a device cabinet, a medium pipeline and a control platform, wherein the medium pipeline is arranged in the device cabinet, and the top surface of the device cabinet is the control platform of the auxiliary device; the source interface, the output interface, the backflow interface and the recovery interface all penetrate through the outer edge of the device cabinet and extend to the outside of the device cabinet.

9. An auxiliary device for valve test according to claim 8, wherein: the reversing valve, the source valve, the output valve, the reflux valve and the recovery valve are manually operated medium pipeline on-off control mechanisms, and the operation ends of the reversing valve, the source valve, the output valve, the reflux valve and the recovery valve penetrate through the top surface of the device cabinet and extend to the device cabinet; the source interface, the recovery interface are arranged on one side face of the device cabinet, the output interface and the backflow interface are arranged on the other side face of the device cabinet.

10. An auxiliary device for valve test according to claim 6, wherein: the device comprises a device cabinet, a medium pipeline and a control platform, wherein the medium pipeline is arranged in the device cabinet, and the top surface of the device cabinet is the control platform of the auxiliary device; the expansion interface and the expansion valve both penetrate through the top surface of the device cabinet and extend to the device cabinet; the expansion module further comprises a storage cabinet, the storage cabinet is arranged on the top surface of the device cabinet, and the bubble recording device, the oil-water separator and the flow meter are arranged in the storage cabinet.