CN218973769U

CN218973769U - Valve pressure testing device

Info

Publication number: CN218973769U
Application number: CN202320022402.6U
Authority: CN
Inventors: 常乐; 刘盼; 范留彬
Original assignee: Zhihui Tianjin Engineering Design Institute Co ltd; Sinopec Fourth Construction Co Ltd
Current assignee: Zhihui Tianjin Engineering Design Institute Co ltd; Sinopec Fourth Construction Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-05
Anticipated expiration: 2033-01-05

Abstract

The utility model provides a valve pressure test device, which comprises an operation table, wherein a plurality of pressure gauge groups are arranged on the operation table, each pressure gauge group is connected through a multi-way valve, each pressure gauge group comprises at least two pressure gauges, the multi-way valves are communicated with a test pipeline, and through the arrangement of the multi-way valves, different pressure gauge groups are selected for proper pressure test during test, and the indication number of the pressure gauges in each pressure gauge group is observed at the same time, so that the accuracy of pressure test is ensured.

Description

Valve pressure testing device

Technical Field

The utility model relates to the technical field of mechanical manufacturing, in particular to a valve pressure testing device.

Background

Valves are widely used in various industrial fields, and when sealing pressure test is performed on valves (gate valve, ball valve, plug valve, butterfly valve, etc.) without a specified medium flow direction, the sealing performance test of one end sealing surface is required first, and then the valve is turned to perform the sealing performance test of the other end sealing surface. And when the traditional vertical valve pressure test tool is used for carrying out the valve pressure test of the type, a pressure gauge is additionally arranged at the outlet of the upper blind plate, and whether the leakage quantity meets the standard requirement cannot be intuitively judged when slight pressure drop occurs in the pressure gauge.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide a valve pressure test device which is used for realizing a bidirectional experiment of a movable valve by arranging a multi-way valve and converting pressure into different test pipelines for testing.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a valve pressure test device which comprises an operation table, wherein a plurality of pressure gauge groups are arranged on the operation table, the pressure gauge groups are connected through a multi-way valve, each pressure gauge group comprises at least two pressure gauges, and the multi-way valve is communicated with a test pipeline. According to the utility model, the multi-way valves are arranged to communicate each pressure gauge group with the test pipeline, so that the pressure gauges with corresponding pressure levels can be replaced by adjusting the multi-way valves when the valves with different pressure levels are subjected to pressure tests at the time of pressure test of the valves, and the accuracy of pressure test is ensured.

Preferably, the multi-way valve is communicated with the water inlet pipe and the air inlet pipe, the water inlet pipe and the air inlet pipe are in parallel connection, and the water inlet pipe and the air inlet pipe are all independent valves. By providing independent valves, a separate water source or air source may be selected for separate testing when testing is performed.

Preferably, the multi-way valve is provided with a plurality of outlets, each outlet is controlled to be opened and closed by an independent valve, and each outlet is connected with one test pipeline. By arranging the independent valve, different test pipelines can be independently tested during testing.

Preferably, the valves connected with the multi-way valve and the pressure gauge groups are independent valves, and the air inlet pipe, the water inlet pipe and each pressure gauge group on the multi-way valve can form independent circuits for testing. According to the utility model, the water inlet pipe, the air inlet pipe and the pressure gauge group form independent circuits, and a water source or an air source can be selected for detection through the multi-way valve during experiments, so that the accuracy of the test is ensured.

Preferably, each pressure gauge group comprises two pressure gauges, and the independent valve is communicated with the pressure gauges through a three-way switch. Through setting up the tee bend, connect in parallel between two manometers, so when carrying out the pressure test, the numerical variation of two manometers can be observed to whether this verifies the manometer effectively, when the data that two manometers show is different, just need carry out independent inspection to the manometer.

Preferably, the test pipeline comprises an upper blind plate pipeline and a lower blind plate pipeline, the upper blind plate pipeline is communicated with the lower blind plate pipeline through the independent valve and the multi-way valve, and the bidirectional pressure test is realized by adjusting the switch of the independent valve.

Compared with the prior art, the utility model has at least the following advantages:

(1) According to the utility model, the multi-way valve is arranged, so that the working efficiency of a sealing experiment of the two-way sealing valve is improved, the lifting valve is not required to change the direction to carry out the two-way sealing experiment, the sealing experiment on sealing surfaces at two ends of the two-way sealing valve can be carried out without turning the valve by adjusting the switch of the multi-way valve, the operation time and the operation difficulty are reduced, the quality defects of the check valve sealing experiment, the valve sealing experiment without the specified medium flow direction, the metering appliance and the like are overcome, and the standard compliance, the accuracy and the fairness of the valve pressure test are improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a process flow chart of a valve pressure test device provided by an embodiment of the utility model.

Wherein, the liquid crystal display device comprises a liquid crystal display device,

1-a pressure gauge group; 2-a pressure gauge; 3-multi-way valve; 4-three-way switch; 5-upper blind plate pipeline; 6-a lower blind plate pipeline; 7-air source; 8-a water source; 9-independent valve.

Detailed Description

The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings and detailed description, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present utility model, and are intended to be illustrative of the present utility model only and should not be construed as limiting the scope of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be in mechanical communication or in electrical communication; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to more clearly illustrate the technical scheme of the utility model, the following description is given by way of specific examples.

Examples

As shown in fig. 1, this embodiment provides a valve pressure test device, which performs bidirectional pressure test on a valve by setting an operation table, so as to improve the working efficiency of seal test.

Install a plurality of manometer crowd 1 on the operation panel, each manometer crowd 1 represents different pressure grades, every manometer crowd 1 all communicates with the multiport valve 3, and each manometer crowd 1 is in the same place through the multiport valve 3, manometer crowd 1 with be provided with independent valve 9 on the pipeline that multiport valve 3 is connected, simultaneously air inlet and water inlet have been seted up on the multiport valve 3, the air inlet with install independent valve 9 on the water inlet, the air inlet passes through intake pipe and air supply 7 intercommunication, the water inlet passes through inlet tube and water source 8 intercommunication, water source 8 air supply 7 and every manometer crowd 1 all can pass through the switch independent circuit is constituteed to independent valve 9 and is tested.

In this embodiment, two pressure gauges 2 are disposed in each pressure gauge group 1, the two pressure gauges 2 are communicated with two ports of a three-way switch 4, and a last port of the three-way switch 4 is communicated with an independent valve 9, and two pressure gauges 2 are simultaneously communicated with the three-way switch 4 to form a parallel connection relationship, so that when the pressure values are not equal in time, whether the problem of the pressure gauges 2 or the problem of the pipeline valve can be judged by comparing the numbers of the pressure gauges 2 when the pressure values are not equal in time during the sealing test.

The multi-way valve 3 is provided with an outlet, the outlet is communicated with a test pipeline, in this embodiment, the test pipeline is set to be an upper blind plate pipeline 5 and a lower blind plate pipeline 6, the upper blind plate pipeline 5 and the lower blind plate pipeline 6 are independently connected with the multi-way valve 3, the upper blind plate pipeline 5 and the lower blind plate pipeline 6 are in parallel connection, and the upper blind plate pipeline 5 and the lower blind plate pipeline 6 are connected with the multi-way valve 3 through an independent valve 9.

In order to enhance the understanding of the present utility model, the following specific embodiments are given:

firstly, when a test is carried out, firstly selecting the pressure gauge group 1 to be used, opening the independent valve 9, then selecting the test pipeline, opening the independent valve 9, and closing other test pipelines and the independent valve 9 on the pressure gauge group 1;

when water source 8 detection is performed: and opening the independent valve 9 on the water inlet, closing the independent valve 9 on the water inlet after filling the test pipeline with water, gradually pressurizing the tested end of the test pipeline to the experimental pressure, and checking the pressure maintaining condition of each pressure gauge 2 in the pressure gauge group 1.

When the air source 7 is detected, the independent valve 9 on the air inlet is opened, and then the detected end of the test pipeline is gradually pressurized to the test pressure, and the pressure maintaining condition of each pressure gauge 2 in the pressure gauge group 1 is detected.

When another pressure level test is performed, the independent valve 9 of the current pressure gauge group 1 is closed, and the independent valve 9 on the pressure gauge group 1 matched with the tested pressure level is opened to perform the test.

After the current test pipeline is tested, the independent valve 9 of the current test pipeline is closed, and the independent valve 9 of the other test pipeline is opened, so that the pressure system is changed into a pressure relief system, and the pressure relief system is changed into a pressure system, and a sealing experiment is directly carried out.

With reference to fig. 1, we set up the reference numerals on each valve, through each reference numeral with the multiway valve 3, manometer crowd 1 and independent valve 9, go up blind plate pipeline 5, can begin to test after the blind plate pipeline 6 communicates down, when opening 5 and close 6, open 3 and close 4 can go up the pressure testing of blind plate direction, when opening 5 and close 6, open 4 and close 3 can go up the pressure testing of blind plate direction, of course, this is that carry out water source 8 and detects, when needing to carry out air source 7 and detect, open 6 and close 5 can.

In the utility model, the multi-way valve 3 is arranged in the valve groove, the valve groove is made of 40 square steel, and meanwhile, the pressure gauge group 1 and the independent valve 9 are connected by adopting a pressure-resistant hose, so that the use safety is ensured.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments employed for the purpose of illustrating the principles of the present utility model, however, the present utility model is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the principles and spirit of the utility model, and such modifications and improvements are also considered within the scope of the utility model.

Claims

1. The utility model provides a valve pressure testing device which characterized in that, includes the operation panel, be provided with a plurality of manometer crowd on the operation panel, each connect through the multiport valve between the manometer crowd, every the manometer crowd is including two at least manometers, multiport valve and test pipeline intercommunication.

2. The valve pressure testing device of claim 1, wherein the multi-way valve is in communication with a water inlet pipe and a gas inlet pipe, the water inlet pipe and the gas inlet pipe are in parallel connection, and the water inlet pipe and the gas inlet pipe are independent valves.

3. The valve pressure test device of claim 1, wherein the multi-way valve is provided with a plurality of outlets, each outlet is controlled to be opened and closed by an independent valve, and each outlet is connected with one test pipeline.

4. The valve pressure test device of claim 2, wherein valves of the multi-way valve connected with the pressure gauge groups are independent valves, and the air inlet pipe, the water inlet pipe and each pressure gauge group on the multi-way valve can form independent circuits for testing.

5. The valve pressure test device of claim 4, wherein each pressure gauge group comprises two pressure gauges, and the independent valve is communicated with the pressure gauges through a three-way switch.

6. The valve pressure test device according to claim 3, wherein the test pipeline comprises an upper blind plate pipeline and a lower blind plate pipeline, the upper blind plate pipeline and the lower blind plate pipeline are communicated with the multi-way valve through the independent valve, and a bidirectional pressure test experiment is realized by adjusting the independent valve switch.