CN210513681U

CN210513681U - Automatic control test bed equipment for detecting valve full performance

Info

Publication number: CN210513681U
Application number: CN201921245664.9U
Authority: CN
Inventors: 胡展鹏; 张健
Original assignee: Shanghai Zengxin Machine Electron Technology Co ltd
Current assignee: Shanghai Zengxin Machine Electron Technology Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-05-12
Anticipated expiration: 2029-08-02

Abstract

The utility model relates to a detect automatic control test bench equipment of valve wholeness ability. Specifically, the utility model provides a detect full-performance automatic control test bench equipment of valve, equipment include moment of torsion final controlling element, valve clamping device, leak hunting device, air exhaust device, air feeder and water supply installation, leak hunting device include water-stop leak hunting device and gas-stop leak hunting device. Automatic control test platform equipment of detection valve full capability can be full-automatic accomplish the test of performance such as gas tightness, water proofness, valve housing's resistance to pressure of valve, and the performance measurement result is objective accurate to practice thrift the manpower greatly, improved the efficiency of valve survey.

Description

Automatic control test bed equipment for detecting valve full performance

Technical Field

The utility model relates to a mechanical equipment technical field specifically is a detect automatic control test bench equipment of valve wholeness ability.

Background

The valve test bed is a tool for detecting the performance of the valve, and each performance index (such as air tightness, water tightness, pressure resistance of a valve shell and the like) of the existing valve is detected by one device.

In the whole detection process of the valve performance in the prior art, the operation steps and the data reading are manually completed, when all detection indexes are completed, the detected valve is required to be carried and the data reading in multiple devices, and the manual operation errors inevitably occur in the process, so that the valve running in a high-pressure and high-water-density environment has huge hidden danger problems in the use process. How to accurately and quickly read the key data of the valve, improve the working efficiency and avoid the detection error becomes a difficult problem to be solved urgently at present.

Accordingly, there is a need in the art to develop a simple, efficient, and automated test stand apparatus for testing full valve performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic completion valve's performance test's such as gas tightness, water proofness, valve housing resistance to pressure automatic control test bench equipment of detection valve full performance.

The utility model discloses a first aspect provides an automatic control test bench equipment of detection valve wholeness ability, equipment include moment of torsion operative installations, valve clamping device, leak hunting device, air exhaust device, air feeder and water supply installation, leak hunting device include water-tight leak hunting device and gas seal leak hunting device;

the torque executing device comprises a plate claw 11 for adjusting the opening and closing of the valve;

the valve clamping device comprises a first sealing element 21 and a second sealing element 22 which are connected with a pipeline opening of a valve to be tested, the first sealing element and the second sealing element are respectively provided with a through hole 23, the through hole of the first sealing element is connected with the through hole of the second sealing element through a first pipeline 24, and the first pipeline is provided with a first water discharge exhaust valve 25 and a second water discharge exhaust valve 26;

the water sealing leakage detection device comprises a first water drop counter 31 and a second water drop counter 32, wherein the first water drop counter is connected with a first pipeline between a first sealing element and a first drainage and exhaust valve through a first leakage detection drainage pipe 33; the second water drop counter is connected with a first pipeline between a second sealing element and a second drainage exhaust valve through a second leak detection drainage pipe 34; a first water sealing switch valve 35 is arranged on the first leak detection drainage pipe, and a second water sealing switch valve 36 is arranged on the second leak detection drainage pipe;

the air-tight sealing leakage detection device comprises a first bubble counter 41 and a second bubble counter 42, wherein the first bubble counter is connected with a first pipeline between a first sealing element and a first drainage and exhaust valve through a third leakage detection drainage pipe 43; the second bubble counter is connected with a first pipeline between the second sealing element and the second drainage exhaust valve through a fourth leak detection drainage pipe 44; a first air-tight switch valve 45 is arranged on the third leak detection drainage pipe, and a second air-tight switch valve 46 is arranged on the fourth leak detection drainage pipe;

the device also comprises a first unloading valve 51 and a second unloading valve 52, wherein the first unloading valve is connected with a first pipeline between the first sealing element and the first drainage and exhaust valve through a second pipeline 53, and the second unloading valve is connected with a first pipeline between the second sealing element and the second drainage and exhaust valve through a third pipeline 54;

the air extracting device 60, the air supplying device 70 and the water supplying device 80 are respectively connected with the first pipeline between the first water discharging and exhausting valve and the second water discharging and exhausting valve through a fourth pipeline 61, a fifth pipeline 71 and a sixth pipeline 81.

In another preferred example, the through hole is communicated with a pipeline opening of the valve to be tested.

In another preferred example, the first drain tap valve is closer to the first seal than the second drain tap valve on the first line.

In another preferred example, the second drain gas vent valve is closer to the second seal than the first drain gas vent valve on the first pipe.

In another preferred example, the valve is a gate valve, a ball valve or a stop valve.

In another preferred embodiment, a first gas valve 62 is arranged on the fourth pipeline;

a second gas valve 72 is arranged on the fifth pipeline; and/or

And a liquid valve 82 is arranged on the sixth pipeline.

In another preferred example, a first pressure sensor 55 is arranged on the second pipeline; and/or

And a second pressure sensor 56 is arranged on the third pipeline.

In another preferred embodiment, the first pressure sensor 55 comprises a gas pressure sensor and/or a liquid pressure sensor; and/or

The second pressure sensor 56 may comprise a gas pressure sensor and/or a liquid pressure sensor.

In another preferred embodiment, the first pressure sensor is arranged between the first unloading valve and the connection point of the second pipeline and the first pipeline.

In another preferred embodiment, the second pressure sensor is arranged between the second unloading valve and the connection point of the third pipeline and the first pipeline.

In another preferred example, the first water drop counter and the second water drop counter respectively include an infrared transmitter 37 and an infrared receiver 38 for detecting the dropping of water drops.

In another preferred embodiment, the infrared emitter and the infrared receiver are located near the nozzle of the first leak detection draft tube.

In another preferred embodiment, the infrared emitter and infrared receiver are located near the nozzle of the second leak detection drain.

In another preferred embodiment, the first bubble counter and the second bubble counter respectively comprise a water tank, an infrared transmitter and an infrared receiver, and the infrared transmitter and the infrared receiver are used for detecting bubbles entering the water tank from the third leak detection drain pipe and the fourth leak detection drain pipe.

In another preferred example, when the valve full performance is measured, water is added into the water tank, so that the water surface in the water tank is positioned above the pipe openings of the third leak detection drainage pipe and the fourth leak detection drainage pipe.

In another preferred embodiment, the torque executing device further comprises a torque sensor, a position sensor, a universal joint and a trigger lever, wherein the position sensor is connected below the torque sensor, the universal joint is connected below the position sensor, the trigger lever is connected below the universal joint, and the trigger claw is connected below the trigger lever.

In another preferred example, the torque executing device further comprises a hydraulic motor and/or a speed reducer.

In another preferred embodiment, the hydraulic motor powers the torque actuator.

In another preferred example, the equipment is also provided with a micro' lens for observing the inner cavity wall of the valve to be tested.

In another preferred embodiment, the "micro lens" is disposed at the through hole.

In another preferred embodiment, the equipment is further provided with a barometer for detecting the internal air pressure of the valve to be detected and a hydraulic pressure meter for detecting the internal hydraulic pressure of the valve to be detected.

In another preferred example, the barometer and the hydrometer are arranged at the through hole.

In another preferred embodiment, the barometer and the hydrometer are arranged in the first pipeline.

In another preferred example, the device further comprises a control part for automatically controlling the detection of the full performance of the valve.

It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.

Drawings

Fig. 1 is a schematic structural diagram of an automatic control test bed device for detecting the full performance of a valve.

In the drawings, each number represents:

11 is a plate claw, 21 is a first sealing element, 22 is a second sealing element, 23 is a through hole, 24 is a first pipeline, 25 is a first drainage exhaust valve, 26 is a second drainage exhaust valve, 31 is a first water drop counter, 32 is a second water drop counter, 33 is a first leakage detection drainage pipe, 34 is a second leakage detection drainage pipe, 35 is a first water-seal switch valve, 36 is a second water-seal switch valve, 37 is an infrared transmitter, 38 is an infrared receiver, 41 is a first bubble counter, 42 is a second bubble counter, 43 is a third leakage detection drainage pipe, 44 is a fourth leakage detection drainage pipe, 45 is a first air-seal switch valve, 46 is a second air-seal switch valve, 51 is a first unloading valve, 52 is a second unloading valve, 53 is a second pipeline, 54 is a third pipeline, 55 is a first pressure sensor, 56 is a second pressure sensor, 60 is an air extractor, 61 is a fourth pipeline, a first gas valve 62, a gas supply 70, a fifth pipe 71, a second gas valve 72, a water supply 80, a sixth pipe 81, a liquid valve 82, a valve 90 and a valve plate 91.

Detailed Description

The inventor of the invention has developed the automatic control test bench equipment for detecting the full performance of the valve unexpectedly through extensive and intensive research, the equipment comprises a torque executing device, a valve clamping device, a leakage detecting device, an air extracting device, an air supply device and a water supply device, and the leakage detecting device comprises a water sealing leakage detecting device and an air sealing leakage detecting device. Automatic control test platform equipment of detection valve full capability can be full-automatic accomplish the test of performance such as gas tightness, water proofness, valve housing's resistance to pressure of valve, and the performance measurement result is objective accurate to practice thrift the manpower greatly, improved the efficiency of valve survey. On this basis, the inventors have completed the present invention.

Term(s) for

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

As used herein, the terms "comprising," "including," and "containing" are used interchangeably and include not only open-ended definitions, but also semi-closed and closed-ended definitions. In other words, the term includes "consisting of … …", "consisting essentially of … …".

As used herein, the terms "upper", "lower", "inner", and the like refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The terms first, second, third, fourth, fifth, sixth, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

As used herein, the terms "connected" and "coupled" are to be construed broadly and may include fixed connections, removable connections, and integrated connections.

As used herein, the terms "automatic control test stand apparatus that detects full performance of a valve" and "automatic control test stand apparatus" are used interchangeably.

The following detailed description of the preferred embodiments of the present invention will be made with reference to fig. 1, so that the advantages and features of the present invention can be easily understood by those skilled in the art, thereby making the scope of the present invention more clearly and definitely defined. The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

All operating procedure of traditional valve test bench are manual operation, press the claw pressure boost and need the manual work to click the button according to the pressure contrast table and see the manometer and beat and press the corresponding pressure value, need set for electric contact pressure gauge earlier when beating and require the pressure value then the manual work click to beat and press the button, need the manual work to observe the manometer pointer and have or not descend during the casing pressurize, need manual switch valve then set for the manometer and click and carry out the water pressure button during the sealing test, need the manual work to observe the condition of revealing etc. during the sealing test, all steps need artifical the participation.

In order to overcome inefficiency, potential safety hazard height, the big scheduling problem of error rate in current valve test bench working process, the utility model provides a detect automatic control test bench equipment of valve wholeness ability.

Automatic control test bed equipment for detecting valve full performance

The utility model provides a detect automatic control test bench equipment of valve wholeness ability, equipment include moment of torsion final controlling element, valve clamping device, leak hunting device, air exhaust device, air feeder and water supply installation, leak hunting device include water-stop leak hunting device and gas-stop leak hunting device.

Torque actuator

Torque actuator can realize opening and close of valve, torque actuator does not have special restriction, can choose the conventional torque actuator in this field for use, as long as it is experimental the utility model discloses a mesh can.

Typically, the torque actuator comprises a pawl 11 for adjusting the opening and closing of the valve.

Preferably, the torque executing device further comprises a torque sensor, a position sensor, a universal joint and a lever, wherein the position sensor is connected below the torque sensor, the universal joint is connected below the position sensor, the lever is connected below the universal joint, and the wrench jaw is connected below the lever.

Valve clamping device

Detect full-featured automatic control test bench equipment of valve in, valve clamping device include with the first sealing member 21 and the second sealing member 22 that await measuring valve pipe road junction and be connected, first sealing member with the second sealing member respectively be equipped with a through-hole 23, the through-hole of first sealing member with the through-hole of second sealing member link to each other through first pipeline 24, first pipeline on be equipped with first drainage discharge valve 25 and second drainage discharge valve 26.

Water seal leakage detection device

The automatic control test bench equipment of detection valve full performance in, water-stop leak hunting device can be used to detect the water-stop when the valve closes.

Typically, the water seal leak detection apparatus includes a first water drop counter 31 and a second water drop counter 32, the first water drop counter being connected to a first conduit between a first seal and a first drain vent valve by a first leak detection drain 33; the second water drop counter is connected with a first pipeline between a second sealing element and a second drainage exhaust valve through a second leak detection drainage pipe 34; and a first water sealing switch valve 35 is arranged on the first leak detection drainage pipe, and a second water sealing switch valve 36 is arranged on the second leak detection drainage pipe.

Air-tight seal leakage detection device

The automatic control test bench equipment of detection valve full performance in, airtight leak hunting device can be used to detect the airtight nature when the valve closes.

Typically, the hermetic leak detection apparatus includes a first bubble counter 41 and a second bubble counter 42, the first bubble counter being connected to a first line between a first seal and a first drain vent valve via a third leak detection drain tube 43; the second bubble counter is connected with a first pipeline between the second sealing element and the second drainage exhaust valve through a fourth leak detection drainage pipe 44; and a first air-tight switch valve 45 is arranged on the third leak detection drainage tube, and a second air-tight switch valve 46 is arranged on the fourth leak detection drainage tube.

A first unloading valve and a second unloading valve

Preferably, the automatic control test bench equipment of detection valve full capability in, equipment still include first off-load valve 51 and second off-load valve 52, first off-load valve pass through second pipeline 53 and first pipeline between first sealing member and the first exhaust valve of draining and link to each other, second off-load valve pass through third pipeline 54 and second sealing member and the second exhaust valve between the first pipeline link to each other.

In another preferred example, the first unloading valve and the second unloading valve can be used for unloading the pipeline system (such as the first pipeline, the first leak detection drainage pipe, the second leak detection drainage pipe, the third leak detection drainage pipe and the third leak detection drainage pipe) and the water pressure and the air pressure in the valve cavity.

In another preferred embodiment, a first pressure sensor 55 is disposed on the second pipeline. Preferably, the first pressure sensor 55 comprises a gas pressure sensor and/or a liquid pressure sensor.

In another preferred embodiment, a second pressure sensor 56 is disposed on the third pipeline. Preferably, the second pressure sensor 56 comprises a gas pressure sensor and/or a liquid pressure sensor.

The gas pressure sensor and the liquid pressure sensor may be used to sense water pressure and gas pressure within a piping system (e.g., a first pipe, a first leak detection drain, a second leak detection drain, a third leak detection drain, and a third leak detection drain) and a valve chamber.

Air extraction device, air supply device and water supply device

Detection valve full performance's automatic control test bench equipment in, air exhaust device, air feeder and water supply installation can be used for respectively bleeding, air feed and supplying water to pipe-line system (like first pipeline, first leak hunting drainage tube, second leak hunting drainage tube, third leak hunting drainage tube and third leak hunting drainage tube) and valve cavity.

Typically, the air suction device 60, the air supply device 70 and the water supply device 80 are connected to the first pipe between the first and second discharge and exhaust valves through the fourth, fifth and

sixth pipes

61, 71 and 81, respectively.

In another preferred embodiment, a first gas valve 62 is disposed on the fourth pipeline.

In another preferred embodiment, a second gas valve 72 is disposed on the fifth pipeline.

In another preferred embodiment, a liquid valve 82 is arranged on the sixth pipeline.

Micro lens

Preferably, the equipment is also provided with a micro lens for observing the inner cavity wall of the valve to be tested. The "camera lens of declining can observe the wall of valve internal chamber under low atmospheric pressure, high atmospheric pressure and the high hydraulic pressure condition changes.

Other parts

Detect full-featured automatic control test bench equipment of valve in, equipment can also be equipped with the barometer that is used for detecting the inside atmospheric pressure of valve that awaits measuring and be used for detecting the inside hydraulic pressure of valve that awaits measuring hydromanometer.

In another preferred example, the device further comprises a control part for automatically controlling the detection of the full performance of the valve. The control part can automatically control the operation of equipment, automatically realize the measurement of performance indexes (such as air tightness, water tightness, pressure resistance of a valve shell and the like) of the valve, does not need manual interference or manual watching, can be automatically completed by a computer program, and finally issues an experimental report, thereby greatly reducing the participation of manpower and improving the efficiency, the accuracy and the like of the performance detection of the valve.

The valve that automatic control test bench equipment that detects valve wholeness ability was suitable for does not have special restriction, for example the valve can be gate valve, ball valve, stop valve etc..

It should be understood that the structure of all valves (such as the drain vent valve, the water-tight switch valve, the air-tight switch valve, the unloading valve, the gas valve and the liquid valve) is not particularly limited as long as the purpose of the present invention is satisfied, and may be the valves commonly found in the market, and the valves (such as the drain vent valve, the water-tight switch valve, the air-tight switch valve, the unloading valve, the gas valve and the liquid valve) of the present invention may be the same or different valves, and the valves may close and open the pipelines (such as the first, second, third, fourth, fifth and sixth pipelines, the leakage detecting drainage tube).

The utility model discloses a main advantage includes:

1. the utility model provides a unique automated inspection large-scale valve performance of structure (like performance such as gas tightness, water proofness, valve housing's resistance to pressure) parameter's test bench equipment, equipment can be under the control of presetting the procedure, in the environment of unmanned intervention, accomplish automatically and survey the valve performance, and to the objective accuracy of valve performance measurement result.

2. Automatic control test bench equipment of detection valve wholeness ability can detect the valve performance automatically to overcome the valve test bench work efficiency who needs manual operation among the prior art low, the potential safety hazard is high, the big scheduling problem of error rate.

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers. Unless otherwise indicated, percentages and parts are by weight.

Example 1

Embodiment 1 provides an automatic control test bed device for detecting the full performance of a valve, the device structure is shown in fig. 1, in order to facilitate understanding of the device of embodiment 1 and the working principle thereof, fig. 1 contains a valve 90 connected with a first sealing member 21 and a second sealing member 22 of the device;

the device comprises a torque executing device, a valve clamping device, a leakage detecting device, an air extracting device, an air supply device and a water supply device, wherein the leakage detecting device comprises a water sealing leakage detecting device and an air sealing leakage detecting device;

the water sealing leakage detection device comprises a first water drop counter 31 and a second water drop counter 32, wherein the first water drop counter is connected with a first pipeline between a first sealing element and a first drainage and exhaust valve through a first leakage detection drainage pipe 33; the second water drop counter is connected with a first pipeline between a second sealing element and a second drainage exhaust valve through a second leak detection drainage pipe 34; the first leak detection drainage tube is provided with a first water seal switch valve 35, the second leak detection drainage tube is provided with a second water seal switch valve 36, and the first water drop counter and the second water drop counter respectively comprise an infrared emitter 37 and an infrared receiver 38 for detecting water drop;

the air-tight sealing leakage detection device comprises a first bubble counter 41 and a second bubble counter 42, wherein the first bubble counter is connected with a first pipeline between a first sealing element and a first drainage and exhaust valve through a third leakage detection drainage pipe 43; the second bubble counter is connected with a first pipeline between the second sealing element and the second drainage exhaust valve through a fourth leak detection drainage pipe 44; the third leak detection drainage tube is provided with a first air-tight switch valve 45, the fourth leak detection drainage tube is provided with a second air-tight switch valve 46, the first bubble counter and the second bubble counter respectively comprise a water tank, an infrared transmitter and an infrared receiver, the infrared transmitter and the infrared receiver are used for detecting bubbles entering the water tank from the third leak detection drainage tube and the fourth leak detection drainage tube, and water is added into the water tank when the valve is used for measuring the full performance, so that the water surface in the water tank is positioned above the pipe orifices of the third leak detection drainage tube and the fourth leak detection drainage tube;

the air extracting device 60, the air supply device 70 and the water supply device 80 are respectively connected with a first pipeline between the first drainage exhaust valve and the second drainage exhaust valve through a fourth pipeline 61, a fifth pipeline 71 and a sixth pipeline 81, the fourth pipeline is provided with a first air valve 62, the fifth pipeline is provided with a second air valve 72, and the sixth pipeline is provided with a liquid valve 82;

the equipment is also provided with a 'micro lens for observing the inner cavity wall of the valve to be tested, and the' micro lens can observe the inner cavity wall of the valve to be tested.

Taking a gate valve as an example, the basic principle of the automatic control test bed equipment for detecting the full performance of the valve in the embodiment 1 for testing the full performance of the valve comprises the following steps:

all valves were in the open state prior to valve integrity testing.

1. The valve plate 91 of the valve 90 is in an open state (the valve plate is opened to enable liquid or gas in the valve to freely flow, the first water-sealing switch valve 35, the second water-sealing switch valve 36, the first air-sealing switch valve 45, the second air-sealing switch valve 46, the first unloading valve 51 and the second unloading valve 52 are closed, the first drainage exhaust valve 25 and the second drainage exhaust valve 26 are opened, the air is extracted by the air extracting device 60, so that the gas pressure in the cavity of the valve to be detected is reduced, and the changes of the shell and the inner wall of the cavity of the valve to be detected (such as whether the shell and the inner wall of the cavity are deformed or broken or not) are observed, so that the maximum vacuum degree;

2. then the air extractor 60 stops running, the air supplier 70 starts supplying air, so that the air pressure in the valve cavity to be detected is increased and boosted, and the change (such as deformation, rupture and the like) of the inner wall of the valve cavity to be detected is observed, so that the maximum air pressure capable of being borne in the valve cavity is determined;

3. thirdly, the gas supply device 70 stops supplying gas, the first unloading valve 51 and/or the second unloading valve 52 are/is opened to restore the gas pressure in the valve cavity to normal atmospheric pressure, the valve plate of the valve is closed through the plate claw (the valve plate is closed to block the free flow of liquid or gas in the valve), the valve plate is closed to divide the valve cavity into a valve left cavity (namely a cavity connected with the first sealing element 21) and a valve right cavity (namely a cavity connected with the second sealing element 22), the first unloading valve 51, the second unloading valve 52 and the first water and gas discharging valve 25 are closed, the first gas sealing switch valve 45 is opened, the gas supply device 70 starts supplying gas, so that the gas pressure in the valve right cavity is greater than that in the valve left cavity, the first gas bubble counter 41 detects whether bubbles flow out from the third leakage detection drainage tube 43, if the valve plate is not indicated to be closed, the high-pressure gas tightness from the valve right cavity to the valve left cavity is good, no leakage exists;

then the gas supply device 70 stops supplying gas, the second unloading valve 52 is opened, the first gas sealing switch 45, the second water discharge gas discharge valve 26 and the second unloading valve 52 are closed after the gas pressure in the right inner cavity of the valve is recovered to the normal atmospheric pressure, the first water discharge gas discharge valve 25 and the second gas sealing switch valve 46 are opened, the gas supply device 70 starts supplying gas, the gas pressure in the left inner cavity of the valve is larger than the gas pressure in the right inner cavity of the valve, the second bubble counter 42 detects whether bubbles flow out from the fourth leak detection drainage tube 44, and if the valve plate is not closed, the high-pressure gas tightness from the left inner cavity of the valve to the right inner cavity of the valve is good and no leakage exists;

4. then, the air supply device 70 stops supplying air, the first unloading valve 51 is opened, the second air-tight switch valve 46 and the first unloading valve 51 are closed, the second water discharge exhaust valve 26 is opened after the air pressure in the left inner cavity of the valve is restored to normal atmospheric pressure, then the water supply device supplies water, the left inner cavity of the valve and the right inner cavity of the valve are filled with water (normal water pressure), then the first water discharge exhaust valve 25 is closed, the first water-tight switch valve 35 is opened, the water supply device 80 supplies water under high pressure, the water pressure in the right inner cavity of the valve is larger than that in the left inner cavity of the valve, the first water drop counter 31 detects whether water drops flow out of the first leak detection drainage tube 33, and if the valve plate is not indicated to be closed, the high-pressure water tightness from the right inner cavity of the valve to the left inner cavity;

then, the water supply device 80 stops supplying water, the second unloading valve 52 is opened, the first water-sealing switch valve 35, the second water discharge exhaust valve 26 and the second unloading valve 52 are closed after the water pressure in the right inner cavity of the valve is recovered to the normal water pressure, the first water discharge exhaust valve 25 and the second water-sealing switch valve 36 are opened, the water supply device 80 supplies water under high pressure, the water pressure in the left inner cavity of the valve is larger than the water pressure in the right inner cavity of the valve, the second water drop counter 32 detects whether water drops flow out from the second drainage tube leakage detection 34, and if the valve plate is not indicated to be closed, the high-pressure water tightness from the left inner cavity of the valve to the right inner cavity of the valve is good and no leakage;

5. and finally, opening the first unloading valve 51, the second unloading valve 52 and the second water discharge exhaust valve 26, emptying the water in the inner cavity of the valve, the pipeline and the leakage detection drainage pipe, and taking out the valve, so that the automatic control test bed equipment for detecting the full performance of the valve finishes the measurement of the pressure resistance (low pressure resistance and high pressure resistance), the air tightness and the water tightness of the valve shell.

All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. The automatic control test bed equipment for detecting the full performance of the valve is characterized by comprising a torque executing device, a valve clamping device, a leakage detecting device, an air extracting device, an air supply device and a water supply device, wherein the leakage detecting device comprises a water sealing leakage detecting device and an air sealing leakage detecting device;

the torque executing device comprises a plate claw (11) for adjusting the opening and closing of the valve;

the valve clamping device comprises a first sealing element (21) and a second sealing element (22) which are connected with a pipeline opening of a valve to be tested, the first sealing element and the second sealing element are respectively provided with a through hole (23), the through hole of the first sealing element is connected with the through hole of the second sealing element through a first pipeline (24), and the first pipeline is provided with a first drainage exhaust valve (25) and a second drainage exhaust valve (26);

the water seal leakage detection device comprises a first water drop counter (31) and a second water drop counter (32), wherein the first water drop counter is connected with a first pipeline between a first sealing element and a first drainage exhaust valve through a first leakage detection drainage pipe (33); the second water drop counter is connected with a first pipeline between a second sealing element and a second water discharge exhaust valve through a second leak detection drainage pipe (34); a first water sealing switch valve (35) is arranged on the first leak detection drainage pipe, and a second water sealing switch valve (36) is arranged on the second leak detection drainage pipe;

the air-tight seal leak detection device comprises a first bubble counter (41) and a second bubble counter (42), wherein the first bubble counter is connected with a first pipeline between a first sealing element and a first water drainage and air exhaust valve through a third leak detection drainage pipe (43); the second bubble counter is connected with a first pipeline between the second sealing element and the second drainage exhaust valve through a fourth leak detection drainage pipe (44); a first air-tight switch valve (45) is arranged on the third leak detection drainage tube, and a second air-tight switch valve (46) is arranged on the fourth leak detection drainage tube;

the device also comprises a first unloading valve (51) and a second unloading valve (52), wherein the first unloading valve is connected with a first pipeline between the first sealing element and the first drainage and exhaust valve through a second pipeline (53), and the second unloading valve is connected with a first pipeline between the second sealing element and the second drainage and exhaust valve through a third pipeline (54);

the air extracting device (60), the air supply device (70) and the water supply device (80) are respectively connected with a first pipeline between the first drainage exhaust valve and the second drainage exhaust valve through a fourth pipeline (61), a fifth pipeline (71) and a sixth pipeline (81).

2. The apparatus as claimed in claim 1, characterized in that said fourth line is provided with a first gas valve (62);

a second gas valve (72) is arranged on the fifth pipeline; and/or

And a liquid valve (82) is arranged on the sixth pipeline.

3. The apparatus according to claim 1, wherein said second conduit is provided with a first pressure sensor (55); and/or

And a second pressure sensor (56) is arranged on the third pipeline.

4. A device according to claim 3, wherein said first pressure sensor (55) comprises a gas pressure sensor and/or a liquid pressure sensor; and/or

The second pressure sensor (56) comprises a gas pressure sensor and/or a liquid pressure sensor.

5. The apparatus of claim 1, wherein said first drop counter and said second drop counter each comprise an infrared transmitter (37) and an infrared receiver (38) for detecting the dropping of water drops.

6. Apparatus as set forth in claim 1 wherein said first bubble counter and said second bubble counter each comprise a water tank, an infrared transmitter and an infrared receiver for detecting bubbles entering the water tank from the third leak detection drain and the fourth leak detection drain.

7. The apparatus according to claim 1, wherein the torque executing device further comprises a torque sensor, a position sensor, a universal joint and a trigger lever, the position sensor is connected below the torque sensor, the universal joint is connected below the position sensor, the trigger lever is connected below the universal joint, and the trigger claw is connected below the trigger lever.

8. The apparatus of claim 1, further provided with a "micro-lens" that views the internal chamber wall of the valve under test.

9. The apparatus of claim 1, wherein the apparatus is further provided with a barometer for detecting the air pressure inside the valve to be tested and a hydro-meter for detecting the hydraulic pressure inside the valve to be tested.

10. The apparatus of claim 1, further comprising a control section for automatically controlling the valve full performance test.