Regulating valve air-tight seal test bench

Abstract

The utility model discloses an air-tight sealing test bench for a regulating valve, and relates to the technical field of regulating valve testing. The air-tight seal test bench for the regulating valve comprises a box body, and a driving mechanism used for testing the sealing of the regulating valve is fixedly mounted on one side of the top in the box body. The first electromagnetic valve pipe is electrified to operate to convey a water source in the water tank into the centrifugal pump, and the centrifugal pump is electrified to operate to generate suction force to suck the water source in the water tank and convey the water source into the regulating valve body for liquid tightness test; a second electromagnetic valve pipe is electrified to operate and is matched with a centrifugal pump for use, so that air in the negative pressure box can be sucked, the outside of the device can be sucked through the negative pressure box in a negative pressure state, and dust in the air is separated through a non-woven fabric plate in the negative pressure box; and filtered air is conveyed into the regulating valve body through the pipe fitting to be subjected to a gas tightness test, so that the function of improving the compatibility of the device is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valve testing, in particular to a regulating valve air-tightness test bench. Background Art

[0002] Regulating valves, also known as control valves, are often used in the field of industrial automation. They are mostly used to change the flow, pressure, liquid level, etc. of regulating pipeline media. When producing and processing regulating valves, a test bench is required to detect the sealing effect of the regulating valve. The test bench is also called a test bench, test bench, etc. The test bench can be used to facilitate the detection of the sealing of the regulating valve.

[0003] A test bench is needed when testing the regulating valve. Among them, the "Simple Regulating Valve Pressure Test Bench" disclosed in the application number "CN201378106Y" has solved the various disadvantages of the existing device, such as complex structure, high cost and inconvenient transportation.

[0004] However, when a test bench with a similar structure is actually used, there are still many defects, such as: it does not have the function of improving the detection accuracy of the device on the control valve, resulting in gaps at the joints of the control valves, causing errors in the detection data, reducing the reliability of the device for detecting the control valves, and at the same time, it does not have the function of improving the compatibility of the device. Different test equipment needs to be replaced to test the gas and liquid sealing of the control valve, which narrows the scope of application of the device and reduces the multifunctional effect of the device. Therefore, it is necessary to design a control valve airtightness test bench. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a regulating valve air-tightness test bench to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a regulating valve air tightness test bench, comprising a box body, a driving mechanism for testing the sealing of the regulating valve is fixedly installed on one side of the top of the box body, and a sealing mechanism for docking the regulating valve is fixedly installed on the other side of the top of the box body;

[0007] The sealing mechanism comprises a filter box, in which two sets of filter plates are fixedly installed;

[0008] The driving mechanism includes a water tank, a negative pressure tank is fixedly installed on one side of the water tank, a first solenoid valve tube is fixedly installed on the bottom of the water tank, a second solenoid valve tube is fixedly installed on the bottom of the negative pressure box, and a centrifugal pump is fixedly installed on one side of the first solenoid valve tube and the second solenoid valve tube through a three-way pipe, and a delivery pipe is fixedly installed on one side of the centrifugal pump.

[0009] Preferably, a telescopic tube is fixedly mounted on one side of the interior of the box, a second encoder is fixedly mounted on the exterior of the telescopic tube, and a rotating plate for monitoring the gas and liquid flow inside the telescopic tube is fixedly mounted on the detection end of the second encoder.

[0010] Preferably, an air pump is fixedly installed at the bottom of the filter box through a pipe fitting, an air bag is fixedly installed at one side of the air pump through a pipe fitting, and a third solenoid valve tube is fixedly installed at the bottom of the air bag.

[0011] Preferably, a valve plate is rotatably mounted inside the delivery pipe, and a first encoder fixedly connected to one end of the valve plate is fixedly mounted at the bottom of the delivery pipe.

[0012] Preferably, a regulating valve body is movably installed inside the box, and the outer side of the regulating valve body is connected to one end of the delivery pipe.

[0013] Preferably, a controller is fixedly mounted on one side of the front surface of the box body, and a box door is movably mounted on one side of the controller via a hinge.

[0014] Beneficial Effects

[0015] The utility model provides a regulating valve air sealing test bench. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] 1. Suction is generated by energizing the air pump and the air inside the filter box is sucked through the pipe fittings, so that the inside of the filter box is in a negative pressure state. The filter box in the negative pressure state can absorb the air outside the device, and filter the dust in the air through the filter plate, so that the air is in a clean state, and then the air is transported to the inside of the airbag through the pipe fittings. The volume of the airbag expands and can fit the interface of the regulating valve body, thereby realizing the function of improving the detection accuracy of the regulating valve body, avoiding the problem of errors in the detection data caused by the gap at the joint of the regulating valve body, and increasing the reliable effect of the device on the detection of the regulating valve body.

[0018] 2. The controller controls the first solenoid valve tube to be energized and operated so that the water source inside the water tank is transported to the inside of the centrifugal pump, so that the centrifugal pump is powered on to generate suction to absorb the water source inside the water tank, and then transport it to the inside of the regulating valve body for liquid tightness test. The controller controls the second solenoid valve tube to be energized and operated. After the first solenoid valve tube is energized and closed, the centrifugal pump is powered on to generate suction to absorb the air inside the negative pressure box, so that the inside of the negative pressure box is in a negative pressure state. The negative pressure box in a negative pressure state can absorb the outside of the device, and separate the dust in the air through the non-woven fabric board inside the negative pressure box, and then the filtered air is transported to the inside of the regulating valve body through the pipe fitting for gas tightness test, thereby realizing the function of improving the compatibility of the device, avoiding the need to replace different test equipment to test the gas and liquid tightness of the regulating valve body, expanding the scope of application of the device, and increasing the multifunctional effect of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the partial structure of the sealing mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the local structure of the driving mechanism of the utility model.

[0023] In the figure: 1. box body; 101. telescopic tube; 102. second encoder; 2. sealing mechanism; 201. filter box; 202. filter plate; 203. air pump; 204. air bag; 205. third solenoid valve tube; 3. regulating valve body; 4. driving mechanism; 401. water tank; 402. negative pressure box; 403. first solenoid valve tube; 404. second solenoid valve tube; 405. centrifugal pump; 5. delivery pipe; 501. first encoder; 502. valve plate; 6. controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides two technical solutions:

[0026] Figure 1 , Figure 2 , Figure 3 , Figure 4 The first embodiment is shown: a regulating valve air-tightness test bench, comprising a box body 1, a driving mechanism 4 for testing the sealing of the regulating valve is fixedly installed on one side of the top of the box body 1, and a sealing mechanism 2 for docking the regulating valve is fixedly installed on the other side of the top of the box body 1;

[0027] The sealing mechanism 2 comprises a filter box 201, and two sets of filter plates 202 are fixedly installed inside the filter box 201;

[0028] The driving mechanism 4 includes a water tank 401, a negative pressure tank 402 is fixedly installed on one side of the water tank 401, a first solenoid valve tube 403 is fixedly installed on the bottom of the water tank 401, a second solenoid valve tube 404 is fixedly installed on the bottom of the negative pressure tank 402, and a centrifugal pump 405 is fixedly installed on one side of the first solenoid valve tube 403 and the second solenoid valve tube 404 through a three-way pipe, and a delivery pipe 5 is fixedly installed on one side of the centrifugal pump 405;

[0029] A telescopic tube 101 is fixedly installed on one side of the box body 1, a second encoder 102 is fixedly installed on the outside of the telescopic tube 101, and a rotating plate for monitoring the gas and liquid flow inside the telescopic tube 101 is fixedly installed on the detection end of the second encoder 102;

[0030] A valve plate 502 is rotatably installed inside the delivery pipe 5, and a first encoder 501 fixedly connected to one end of the valve plate 502 is fixedly installed at the bottom of the delivery pipe 5. A regulating valve body 3 is movably installed inside the box body 1, and the outer side of the regulating valve body 3 is connected to one end of the delivery pipe 5.

[0031] After the regulating valve body 3 is installed inside the box body 1, the first solenoid valve tube 403 is powered on by the controller 6 so that the water source inside the water tank 401 is transported to the inside of the centrifugal pump 405, so that the centrifugal pump 405 can be powered on to generate suction to absorb the water source inside the water tank 401 and transport it to the inside of the regulating valve body 3 for liquid sealing test;

[0032] Then, the controller 6 controls the second solenoid valve tube 404 to be powered on and the first solenoid valve tube 403 to be powered on and closed, and then the centrifugal pump 405 is powered on to generate suction to absorb the air inside the negative pressure box 402, so that the inside of the negative pressure box 402 is in a negative pressure state. The negative pressure box 402 in a negative pressure state can absorb the outside of the device, and separate the dust in the air through the non-woven fabric board inside the negative pressure box 402, and then the filtered air is transported to the inside of the regulating valve body 3 through the pipe fittings for gas sealing test, thereby realizing the function of improving the compatibility of the device;

[0033] The telescopic feature of the telescopic tube 101 can increase the convenience of using the device. The liquid transported through the delivery tube 5 can drive the valve plate 502 to rotate. The first encoder 501 is powered on to detect the flow rate of the liquid flowing through the delivery tube 5. The second encoder 102 can be used in conjunction to detect the flow rate of the liquid passing through the regulating valve body 3, thereby realizing the function of detecting the sealing effect of the regulating valve body 3.

[0034] Figure 2 , Figure 3 A second embodiment is shown, the main difference from the first embodiment is that a controller 6 is fixedly installed on one side of the front of the box body 1, and a box door is movably installed on one side of the controller 6 through a hinge; an air pump 203 is fixedly installed on the bottom of the filter box 201 through a pipe fitting, an air bag 204 is fixedly installed on one side of the air pump 203 through a pipe fitting, and a third solenoid valve tube 205 is fixedly installed on the bottom of the air bag 204.

[0035] The controller 6 is electrically connected to the internal electrical equipment of the device through a wire, so that the operator can intelligently control the internal electrical equipment of the device to power on and operate, and the operator can perform maintenance operations on the internal electrical equipment of the device through the box door;

[0036] Suction is generated by energizing the air pump 203, and the air inside the filter box 201 is sucked through the pipe, so that the inside of the filter box 201 is in a negative pressure state. The filter box 201 in the negative pressure state can absorb the air outside the device, and filter the dust in the air through the filter plate 202, so that the air is in a clean state. The air is then transported to the inside of the airbag 204 through the pipe. The volume of the airbag 204 expands and can fit the interface of the regulating valve body 3, thereby achieving the function of improving the detection accuracy of the regulating valve body 3.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regulating valve air-tightness test bench, comprising a box (1), characterized in that: A driving mechanism (4) for testing the sealing of the regulating valve is fixedly installed on one side of the top of the box body (1), and a sealing mechanism (2) for docking the regulating valve is fixedly installed on the other side of the top of the box body (1); The sealing mechanism (2) comprises a filter box (201), wherein two groups of filter plates (202) are fixedly installed inside the filter box (201); The driving mechanism (4) comprises a water tank (401), a negative pressure box (402) is fixedly mounted on one side of the water tank (401), a first solenoid valve tube (403) is fixedly mounted on the bottom of the water tank (401), a second solenoid valve tube (404) is fixedly mounted on the bottom of the negative pressure box (402), a centrifugal pump (405) is fixedly mounted on one side of the first solenoid valve tube (403) and the second solenoid valve tube (404) via a three-way pipe, and a delivery pipe (5) is fixedly mounted on one side of the centrifugal pump (405).

2. The regulating valve air-tightness test bench according to claim 1, characterized in that: A telescopic tube (101) is fixedly mounted on one side of the interior of the box body (1), a second encoder (102) is fixedly mounted on the exterior of the telescopic tube (101), and a rotating plate for monitoring the flow of gas and liquid inside the telescopic tube (101) is fixedly mounted on the detection end of the second encoder (102).

3. The regulating valve air-tightness test bench according to claim 1, characterized in that: An air pump (203) is fixedly mounted on the bottom of the filter box (201) via a pipe, an air bag (204) is fixedly mounted on one side of the air pump (203) via a pipe, and a third solenoid valve tube (205) is fixedly mounted on the bottom of the air bag (204).

4. The regulating valve air-tightness test bench according to claim 1, characterized in that: A valve plate (502) is rotatably mounted inside the delivery pipe (5), and a first encoder (501) fixedly connected to one end of the valve plate (502) is fixedly mounted at the bottom of the delivery pipe (5).

5. The regulating valve air-tightness test bench according to claim 4 is characterized in that: A regulating valve body (3) is movably mounted inside the box body (1), and the outer side of the regulating valve body (3) is connected to one end of a delivery pipe (5).

6. The regulating valve air-tightness test bench according to claim 1, characterized in that: A controller (6) is fixedly mounted on one side of the front face of the box body (1), and a box door is movably mounted on one side of the controller (6) via a hinge.

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