High-point deflation valve testing device

Abstract

The utility model relates to a valve testing device, in particular to a high-point deflation valve testing device. Comprising an air pressure module, a hydraulic module and a test valve interface. The air pressure module comprises an air compressor, a high-pressure air cylinder and a pressure reduction assembly. The hydraulic module comprises an energy accumulator assembly, a liquid storage tank, a pump, a third stop valve and a sixth stop valve. The energy accumulator assembly comprises a first energy accumulator, a second energy accumulator, a fourth stop valve, a fifth stop valve, a third one-way valve, an inflation pipeline, a liquid filling pipeline and a test pipeline. According to the utility model, the two energy accumulators are arranged, so that stable and lasting medium pressure can be provided for the test valve, and the sealing performance test of two media, namely liquid and gas, can be carried out on the same test equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve testing device, concretely relates to a high point air release valve testing device. BACKGROUND

[0002] The high point air release valve is a component part in the closed liquid circulation pipeline system, so it is necessary to ensure that the valve can be properly opened at the specified pressure. The existing valve hydraulic or air pressure testing device is usually only used for sealing test, and it cannot provide stable medium pressure when the tested valve is in the open state, and it cannot simulate the working state of the valve under the specific medium pressure. When the high point air release valve is used as an air release valve, the valve first flows through a certain pressure gas medium, then flows through a liquid medium, and needs to be closed at this time, which cannot be achieved on the ordinary single medium pressure testing device. SUMMARY

[0003] Therefore, it is necessary to provide a high point air release valve testing device to solve the above technical problems, which can provide stable medium pressure and can provide sealing performance test and evaluation of liquid and gas two media.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A high point vent valve test device, comprising: a gas pressure module, a hydraulic module and a test valve interface; the gas pressure module comprises: an air compressor, a high-pressure gas cylinder and a pressure reducing assembly; the high-pressure gas cylinder gas inlet is connected with the air compressor outlet pipeline; the pressure reducing assembly gas inlet is respectively connected with the air compressor outlet and the high-pressure gas cylinder gas inlet pipeline, and the pressure reducing assembly gas outlet is connected with the hydraulic module pipeline; the pressure reducing assembly comprises: a first pressure reducing pipeline and a second pressure reducing pipeline; the first pressure reducing pipeline and the second pressure reducing pipeline are connected in parallel; the first pressure reducing pipeline comprises: a first stop valve, a first pressure reducing valve and a first check valve, which are connected in series; the second pressure reducing pipeline comprises a second stop valve, a second pressure reducing valve and a second check valve, which are connected in series; the first stop valve and the second stop valve are interlocked; the hydraulic module comprises: an accumulator assembly, a liquid storage tank, a pump, a third stop valve and a sixth stop valve; the accumulator assembly comprises: a first accumulator, a second accumulator, a fourth stop valve, a fifth stop valve, a third check valve, a gas charging pipeline, a liquid charging pipeline and a test pipeline; the first accumulator and the second accumulator are connected in parallel; one end of the gas charging pipeline is connected with the pressure reducing assembly outlet pipeline, and the other end of the gas charging pipeline is respectively connected with the upper end of the first accumulator and the inlet end of the fifth stop valve; the outlet end of the fifth stop valve is connected with the inlet end of the third check valve, and the outlet end of the third check valve is respectively connected with the test pipeline and the upper end of the second accumulator; the outlet of the liquid charging pipeline is connected with the lower end of the first accumulator and the inlet of the fourth stop valve, and the outlet of the fourth stop valve is connected with the lower end of the second accumulator; the liquid inlet of the pump is connected with the liquid outlet of the liquid storage tank, the liquid outlet of the pump is connected with the inlet end of the third stop valve, and the outlet end of the third stop valve is connected with the liquid charging pipeline; the outlet of the test pipeline is connected with the inlet of the sixth stop valve, and the outlet of the sixth stop valve is connected with the test valve interface.

[0006] Further, a high point vent valve test device further comprises a first automatic cut-off valve, which is connected with the high-pressure gas cylinder outlet, and is used for automatically closing the high-pressure gas cylinder outlet when the high-pressure gas flow rate is too large.

[0007] Further, a high point vent valve test device further comprises a second automatic cut-off valve, which is connected with the test pipeline, and is used for automatically closing the test pipeline when the medium flow rate is too large.

[0008] Further, a high point vent valve test device further comprises a scale, which is arranged on the outer wall of the liquid storage tank, and is used for monitoring the liquid level position of the liquid in the liquid storage tank.

[0009] Further, the high point vent valve test device also comprises at least one liquid level meter, which is arranged on the outer wall of the first accumulator and / or the second accumulator, and is used for monitoring the liquid level position of the liquid in the first accumulator and / or the second accumulator.

[0010] Compared with the prior art, the high point vent valve test device has the following beneficial effects:

[0011] 1. By arranging two accumulators, stable and persistent medium pressure is provided for the test valve; 2. When the test valve is tested, the gas at the upper end of the accumulator is first subjected to the sealing test, and after the gas is used up, the liquid at the lower end also participates in the test under the action of the system pressure, so that the sealing performance test and evaluation of the liquid and gas two media are realized on the same test equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] 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 for purposes of illustration only and are not considered a limitation of the present application. Moreover, like reference numerals are used to designate identical components throughout the specification. In the drawings:

[0013] Fig. 1 The pipeline principle diagram of the high point vent valve test device in the embodiments of the present application;

[0014] Fig. 2 The pressure reduction assembly principle diagram of the high point vent valve test device in the embodiments of the present application;

[0015] Fig. 3 The accumulator assembly principle diagram of the high point vent valve test device in the embodiments of the present application;

[0016] Reference signs:

[0017] 1-air pressure module, 2-hydraulic pressure module, 10-pressure reduction assembly, 12-first pressure reduction pipeline, 13-second pressure reduction pipeline, 20-accumulator assembly, 21-gas charging pipeline, 22-liquid charging pipeline, 23-test pipeline, 30-test valve interface, 100-air compressor, 110-high pressure gas cylinder, 111-first automatic cut-off valve, 120-first stop valve, 121-first pressure reduction valve, 122-first check valve, 130-second stop valve, 131-second pressure reduction valve, 132-second check valve, 200-liquid storage tank, 201-pump, 202-third stop valve, 203-fourth stop valve, 204-fifth stop valve, 205-third check valve, 206-second automatic cut-off valve, 207-sixth stop valve, 210-first accumulator, 211-liquid level meter, 212-ruler, 220-second accumulator. DETAILED DESCRIPTION

[0018] In order to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. It should be noted that, in the description of the present application, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] The "connection" appearing in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize the connection between devices, and the embodiments of the present application do not make any limitation on this.

[0020] Reference to "embodiments" in this text means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0022] As Figs. 1 to 3The high point vent valve test device shown, comprising: air pressure module (1), hydraulic module (2) and test valve interface (30); the air pressure module (1) comprises: air compressor (100), high pressure gas cylinder (110) and pressure reducing assembly (10); the high pressure gas cylinder (110) inlet is connected with air compressor (100) outlet pipeline; the pressure reducing assembly (10) inlet is connected with air compressor (100) outlet and high pressure gas cylinder (110) inlet pipeline respectively, the pressure reducing assembly (10) outlet is connected with the hydraulic module (2) pipeline; the pressure reducing assembly (10) comprises: first pressure reducing pipeline (12) and second pressure reducing pipeline (13); the first pressure reducing pipeline (12) and the second pressure reducing pipeline (13) are connected in parallel; the first pressure reducing pipeline (12) comprises: first stop valve (120), first pressure reducing valve (121) and first check valve (122), the first stop valve (120), the first pressure reducing valve (121) and the first check valve (122) are connected in series; the second pressure reducing pipeline (13) comprises second stop valve (130), second pressure reducing valve (131) and second check valve (132), the second stop valve (130), the second pressure reducing valve (131) and the second check valve (132) are connected in series; the first stop valve (120) and the second stop valve (130) are interlocked. When the set test pressure is greater than 3MPa, the second stop valve (130) cannot be started; when the set test pressure is less than 3MPa, the first stop valve (120) cannot be started, to prevent the tested valve from being damaged due to excessive pressure.

[0023] The hydraulic module (2) comprises an accumulator assembly (20), a liquid storage tank (200), a pump (201), a third stop valve (202), and a sixth stop valve (207); the accumulator assembly (20) comprises a first accumulator (210), a second accumulator (220), a fourth stop valve (203), a fifth stop valve (204), a third one-way valve (205), a gas charging pipeline (21), a liquid charging pipeline (22), and a test pipeline (23); the first accumulator (210) and the second accumulator (220) are connected in parallel; one end of the gas charging pipeline (21) is connected with an outlet pipeline of the pressure reducing assembly (10), and the other end of the gas charging pipeline (21) is respectively connected with an upper end of the first accumulator (210) and an inlet end of the fifth stop valve (204); an outlet end of the fifth stop valve (204) is connected with an inlet end of the third one-way valve (205), and an outlet end of the third one-way valve (205) is respectively connected with the test pipeline (23) and an upper end of the second accumulator (220); an outlet of the liquid charging pipeline (22) is connected with a lower end of the first accumulator (210) and an inlet end of the fourth stop valve (203), and an outlet of the fourth stop valve (203) is connected with a lower end of the second accumulator (220); a liquid inlet of the pump (201) is connected with a liquid outlet of the liquid storage tank (200), a liquid outlet of the pump (201) is connected with an inlet end of the third stop valve (202), and an outlet end of the third stop valve (202) is connected with the liquid charging pipeline (22); an outlet of the test pipeline (23) is connected with an inlet of the sixth stop valve (207), and an outlet of the sixth stop valve (207) is connected with the test valve interface (30).

[0024] Further, the high-point vent valve test device further comprises a first automatic cut-off valve (111) connected with an outlet of the high-pressure gas cylinder (110), which is used to automatically close the outlet of the high-pressure gas cylinder (110) when the flow rate of the high-pressure gas is too large.

[0025] Further, the high-point vent valve test device further comprises a second automatic cut-off valve (206) connected with the test pipeline (23), and an inlet end of the second automatic cut-off valve (206) is connected with an outlet end of the sixth stop valve (207), which is used to automatically close the test pipeline (23) when the flow rate of the medium is too large.

[0026] Further, the high-point vent valve test device further comprises a scale (212) arranged on an outer wall of the liquid storage tank (200), which is used to monitor the liquid level position of the liquid in the liquid storage tank (200).

[0027] Further, the high point vent valve testing device further comprises at least one liquid level gauge (211) arranged on the outer wall of the first accumulator (210) and / or the second accumulator (220) for monitoring the liquid level of the liquid in the first accumulator (210) and / or the second accumulator (220).

[0028] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application, these improvements and refinements shall be considered as the protection scope of the present application.

Claims

1. A high point purge valve testing device, characterized by, The utility model relates to a test valve interface, air pressure module, hydraulic module and test valve interface are included. The air pressure module includes: air compressor, high pressure gas cylinder and pressure reducing component, the high pressure gas cylinder air inlet is connected with air compressor outlet pipeline, the pressure reducing component air inlet is connected with air compressor outlet and high pressure gas cylinder air inlet pipeline respectively, and the pressure reducing component air outlet is connected with the hydraulic module pipeline; The pressure reducing component includes: first pressure reducing pipeline and second pressure reducing pipeline, the first pressure reducing pipeline and second pressure reducing pipeline are in parallel, the first pressure reducing pipeline includes: first stop valve, first pressure reducing valve and first check valve, the first stop valve, the first pressure reducing valve and the first check valve are connected in series in proper order, the second pressure reducing pipeline includes second stop valve, second pressure reducing valve and second check valve, the second stop valve, the second pressure reducing valve and the second check valve are connected in series in proper order, and the first stop valve and the second stop valve are interlocked; The hydraulic module includes: accumulator assembly, liquid storage tank, pump, third stop valve, sixth stop valve; The accumulator assembly includes: first accumulator, second accumulator, fourth stop valve, fifth stop valve, third check valve, inflation pipeline, liquid filling pipeline and test pipeline, the first accumulator and the second accumulator are connected in parallel, one end of the inflation pipeline is connected with the pressure reducing component outlet pipeline, the other end of the inflation pipeline is connected with the first accumulator upper end and the fifth stop valve inlet end respectively, the fifth stop valve outlet end is connected with the third check valve inlet end, and the third check valve outlet end is connected with the test pipeline and the second accumulator upper end respectively, the liquid filling pipeline outlet is connected with the first accumulator lower end and the fourth stop valve inlet end, and the fourth stop valve outlet is connected with the second accumulator lower end; The pump liquid inlet is connected with the liquid storage tank liquid outlet, the pump liquid outlet is connected with the third stop valve inlet end, and the third stop valve outlet end is connected with the liquid filling pipeline; The test pipeline outlet is connected with the sixth stop valve inlet, and the sixth stop valve outlet is connected with the test valve interface. Further include first automatic cut-off valve, the first automatic cut-off valve is connected with high pressure gas cylinder outlet, is used for automatically closing the high pressure gas cylinder outlet when high pressure gas flow rate is too big.

2. A high point purge valve testing device as defined in claim 1, wherein: Further include second automatic cut-off valve, the second automatic cut-off valve inlet is connected with the test pipeline, and the second automatic cut-off valve outlet end is connected with the sixth stop valve inlet end, for automatically closing the test pipeline when medium flow rate is too big.

3. A high point purge valve testing device as defined in claim 1, wherein: Further include a scale, the scale is arranged on the outer wall of the liquid storage tank, for monitoring the liquid level position in the liquid storage tank.

4. A high point purge valve testing device as defined in claim 1, wherein: Further include at least one liquid level gauge, the liquid level gauge is arranged on the outer wall of the first accumulator and / or second accumulator, for monitoring the liquid level position in the first accumulator and / or second accumulator.

5. A high point purge valve testing device as defined in claim 1, wherein: ​

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