CN207850624U - The testing stand of detection gas valve - Google Patents

Abstract

The utility model discloses a test bench for detecting gas valves, which comprises a gas storage case, a cover plate is arranged on the upper surface of the gas storage case, and a sealing gasket I is arranged between the cover plate and the gas storage case. It is equipped with a support mechanism, a detection device, an air intake valve, an air outlet valve, and a terminal; the central part of the support mechanism is fixed with a cylinder, the air inlet of the cylinder is connected to the power source, and the piston rod of the cylinder is detachably equipped with a The clamping mechanism is used to compress the valve; a valve detection port is opened on the cover plate, and a sealing gasket II is arranged on the valve detection port, and the valve detection port corresponds to the clamping mechanism. The utility model adopting the above proposal has the advantages of simple structure, low production cost, accurate detection of whether the valve leaks air, and no short circuit of electronic components in the valve due to water contact.

Description

Test bench for testing gas valves

technical field

The utility model relates to the field of valve detection, in particular to a test bench for detecting gas valves.

Background technique

As we all know, pipelines for storing and transporting compressed gas are widely used in industry and life, and various valves are used to connect and control the movement of gas in these pipelines, such as for oil and natural gas collection, oil refining, Pressure relief valves, isolation valves and bypass valves on various pipelines and oil storage tanks and gas storage tanks in petrochemical, chemical and other industries, as well as steam traps in steam pipelines in factories, etc. Valves are the core actuators in the automatic control system and safety protection system of the petrochemical industry, and are called the "throat" of the petrochemical industry.

From the above analysis, it is not difficult to conclude that valves are important in industry and real life, so there are very strict requirements on their sealing performance, that is, sealing performance tests must be done during the production process and before leaving the factory. The detection of air leakage is usually to see if there are air bubbles in the water after pressure. Whether there are air bubbles in the water to judge whether the valve is leaking will be affected by many factors and cause inaccurate judgments; when the valve leaks, water will enter the valve. , which will short-circuit the electronic components sealed in the valve, that is, in the prior art, the method of determining whether the valve is leaking air by observing air bubbles in water has the defects of inaccurate detection and short-circuit of electronic components due to water .

Utility model content

The purpose of this utility model is to address the deficiencies of the prior art, thereby providing a test for detecting gas valves that has a simple structure, low production cost, can accurately detect whether the valve is leaking, and will not cause short circuit of the electronic components in the valve. tower.

In order to achieve the above object, the utility model adopts the following technical solutions:

The utility model comprises a gas storage shell, a cover plate is arranged on the upper surface of the gas storage shell, a sealing gasket I is arranged between the cover plate and the gas storage shell, and a support mechanism, a detection device, and an inlet are arranged on the cover plate. An air valve, an air outlet valve, and a connecting post; the central part of the support mechanism is fixed with a cylinder, the air inlet of the cylinder is connected to the power source, and the piston rod of the cylinder is detachably provided with a pressing mechanism for pressing the valve; A valve detection port is opened on the cover plate, a sealing gasket II is arranged on the valve detection port, and the valve detection port corresponds to the pressing mechanism.

Based on the above, the pressing mechanism includes a connecting head, one end of the connecting head is connected to the piston rod, and the other end of the connecting head is provided with a horizontal support mechanism. The bottom end of each pressure frame is connected with the pressure plate used to compress the valve.

Based on the above, the connecting head is threadedly connected with the piston rod.

Based on the above, the transverse support mechanism is welded to the other end of the connector, the press frame is welded to the transverse support mechanism, and the bottom end of each press frame is welded to the pressure plate.

Based on the above, the detection device is a pressure gauge.

Based on the above, the power source is an air compressor.

Based on the above, the valve detection port is a semicircular valve detection port, and the shape of the horizontal support mechanism and the pressure plate is the same as that of the valve detection port.

Compared with the prior art, the utility model has substantive characteristics and progress. Specifically, the utility model adopting the above scheme has simple structure, low production cost, can accurately detect whether the valve is leaking, and will not cause the electronic components in the valve to be damaged. Advantages of water short circuit.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a test bench for detecting gas valves provided by the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a structural schematic diagram of the utility model for valve detection.

Fig. 4 is a sectional view taken along line A-A of Fig. 3 .

FIG. 5 is an enlarged schematic view of area B in FIG. 4 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example

An embodiment of a test bench for detecting gas valves provided by the utility model, as shown in Figures 1 to 5, this embodiment includes a gas storage shell 1, and a cover plate 2 is arranged on the upper surface of the gas storage shell 1, Between the cover plate 2 and the gas storage shell 1, a sealing gasket 110 is provided, and the cover plate 2 is provided with a support mechanism 5, a detection device 6, an air inlet valve 7, an air outlet valve 8, and a terminal post 9; the support mechanism 5 The central part is fixed with a cylinder 4, the air inlet of the cylinder 4 is connected to the power source, and the piston rod 3 of the cylinder 4 is detachably provided with a pressing mechanism for pressing the valve; There is a valve detection port, the valve detection port is provided with a sealing gasket II 11, and the valve detection port corresponds to the pressing mechanism; the detection device 6 is a pressure gauge, and the power source is an air compressor. In addition to the detection device, other detection devices can also be used, but the pressure gauge has stable performance, is easy to obtain from the market, and is low in cost. The choice of power source is the same as that of the detection device. In addition to the air compressor, you can also choose other . In actual application, the inspector puts the object to be detected into the pair of inspections from the valve detection port, and can judge whether the object to be detected is leaking by observing the pressure gauge.

In order to enable those skilled in the art to better understand the utility model, the pressing mechanism in this embodiment is now limitedly described. The pressing mechanism includes a connecting head 31, one end of the connecting head 31 is connected with the piston rod 3, and the other end of the connecting head 31 One end is provided with a horizontal support mechanism 32, and the top of the horizontal support mechanism 32 is symmetrically provided with a vertically downward pressure frame 33, and the bottom end of each pressure frame 33 is connected with a pressure plate 34 for pressing the valve. The connecting head 31 is threadedly connected with the piston rod 3. Compared with other connection methods, the threaded connection is convenient for installers to install and maintain for maintenance personnel.

In order to perfect this embodiment, the cross support mechanism 32 is welded on the other end of the connecting head 31 , the press frame 33 is welded on the cross support mechanism 32 , and the bottom end of each press frame 33 is welded with the press plate 34 . The pressing mechanism is small in size, and the connecting head 31, the horizontal support mechanism 32, the pressing frame 33 and the pressing plate 34 are welded into one by welding, which does not affect the transportation, but is convenient for the installation personnel to install and the maintenance personnel to maintain it.

The valve detection port is a semicircular valve detection port, and the shape of the horizontal support mechanism 32 and the pressure plate 34 is the same as that of the valve detection port.

In order to make the public and those skilled in the art better understand the utility model, and then better promote and use the utility model, first describe the operation steps of the utility model in conjunction with Fig. 3, Fig. 4 and Fig. 5, the details are as follows:

First put the object to be detected into the valve detection port. The object to be detected includes the valve 12, the motor and the propulsion device 121 that cooperate with the valve 12, and the gasket 123, and then put the gasket II 11, and then pass the pressing mechanism through the cylinder 4. Moving downward, the pressure plate 34 will press the air outlet point on the edge of the valve 12, and at the same time, the motor and the propulsion device will push the sealing gasket 123 to move upward to tighten the valve outlet 122, then open the inlet valve 7, close the outlet valve 8, and store the gas A certain pressure is reached in the gas shell 1 and the valve 12, and finally, the intake valve 7 is closed to observe whether the pressure gauge has pressure relief.

If there is a pressure gauge that releases pressure, it means that the object to be tested is leaking. If the pressure gauge does not release pressure, it means that the object to be tested is not leaking.

At this time, the gas outlet valve 8 is opened, and the gas pressure in the gas storage shell 1 and the valve 12 is released to 0, then the motor and the propulsion device shrink the gasket 123 and move downward to isolate the gas outlet of the valve, and finally the cylinder 4 and the press frame 33 Up, the detected object can be removed.

The existing detection scheme is to put the detected object into the water, and judge whether the valve 12 is leaking by observing the air bubbles. When the air leaks, the water enters the detected object, which may easily lead to short circuit and scrapping of the motor and other related electronic components in the detected object. In addition to the above-mentioned defects in the prior art; in addition to overcoming the above-mentioned defects in the present invention, when the pressure gauge releases pressure, the inspector can stop the operation, re-operate the place that needs to be sealed, check the cause of the pressure gauge release, and repeat the above steps This improves the accuracy of detecting whether the valve is leaking.

In order to meet the requirement of brevity, each part of this specification focuses on the differences from other parts, and the same and similar parts of each part can be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model.

Claims (7)

1. a kind of testing stand of detection gas valve, it is characterised in that：Including gas gas storage shell (1), in gas gas storage shell (1) Upper surface is equipped with cover board (2), and gasket I (10) is equipped between cover board (2) and gas gas storage shell (1), and cover board (2) is equipped with branch Support mechanism (5), detection device (6), intake valve (7), air outlet valve (8), binding post (9)；Supporting mechanism (5) central part is solid Surely it is equipped with cylinder (4), the air inlet of cylinder (4) is connect with power source, is removably equipped with and is used on the piston rod (3) of cylinder (4) In the hold-down mechanism for compressing valve；Valve detection mouth is offered on the cover board (2), valve detection mouth is equipped with gasket II (11), valve detection mouth is corresponding with hold-down mechanism.

2. the testing stand of detection gas valve according to claim 1, it is characterised in that：The hold-down mechanism includes connecting One end of connector (31), connector (31) is connect with piston rod (3), and the other end of connector (31) is equipped with horizontal support mechanism (32), horizontal support mechanism (32) on be arranged with pressure rack (33) straight down, each pressure rack (33) bottom end with for compressing The pressing plate (34) of valve connects.

3. the testing stand of detection gas valve according to claim 2, it is characterised in that：The connector (31) and piston Bar (3) is threadedly coupled.

4. the testing stand of detection gas valve according to claim 2, it is characterised in that：Horizontal support mechanism (32) weldering Be connected on the other end of connector (31), pressure rack (33) is welded in horizontal support mechanism (32), the bottom end of each pressure rack (33) with Pressing plate (34) welds.

5. the testing stand of detection gas valve according to claim 1, it is characterised in that：The detection device (6) is pressure Power table.

6. the testing stand of detection gas valve according to any one of claims 1 to 5, it is characterised in that：The power source is Air compressor.

7. according to the testing stand of any detection gas valve of claim 2 to 4, it is characterised in that：The valve detection Mouthful for semicircle valve detection mouth, the shape phase of the shape and valve detection mouth of the horizontal support mechanism (32) and pressing plate (34) Together.