Test board for pressure test

Abstract

The utility model relates to the technical field of pressure gauges, in particular to a test board for pressure testing, which comprises a working table, a pressure component, U-shaped positioning plates, a diameter alignment component, a sealing cover and an electronic pressure gauge for calibration, the U-shaped positioning plates are fixedly arranged at equal intervals along the top of the working table, the pressure component is mounted in the working table, and the diameter alignment component is mounted in the working table. The pressure assembly is arranged on the U-shaped positioning plate and located at the bottom of the U-shaped positioning plate, and the air inlet end of the electronic pressure gauge is arranged between the U-shaped positioning plate and the pressure assembly and is of a flange structure. Through the assembly composed of the working table, the pressure assembly, the U-shaped positioning plate, the diameter alignment assembly, the sealing cover and the electronic pressure gauge used for calibration, a set of air pressure detection table is provided for the pressure gauge, the device can be suitable for pressure detection of flange pressure gauges with various butt joint calibers, multiple sets of flange pressure gauges can be detected at the same time, and the detection efficiency is improved. And the detection application range and the detection efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure gauge technical field, concretely relates to a test board for pressure test. BACKGROUND

[0002] Flange pressure gauge is widely used in petroleum, chemical industry, machinery, coal, metallurgy, electric power and other industrial fields, and is closely combined with pipeline system through flange connection, and is used for measuring the pressure of liquid or gas in the pipeline, and can also be used for measuring static pressure, and the pressure of medium with large viscosity, easy crystallization and large corrosion;

[0003] The flange pressure gauge has high precision requirement for pressure detection, and needs to be calibrated one by one before leaving factory.

[0004] The existing pressure detection mechanism for flange pressure gauge can only detect one group of flange pressure gauge, and has great limitation in detection interface diameter and low detection efficiency, so a test board for pressure test is provided. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model provides a test board for pressure test, which provides a set of air pressure detection board for pressure gauge, can be suitable for pressure detection of flange pressure gauges with various diameters of the interface, and can simultaneously detect multiple groups of flange pressure gauges, greatly increasing the application range and detection efficiency of detection.

[0006] The utility model solves the technical problems by adopting the technical scheme of a test board for pressure test, which comprises a workbench, a pressure assembly, a U-shaped positioning plate, a diameter assembly, a cover and an electronic pressure gauge for calibration, the U-shaped positioning plate is fixedly arranged at equal distances on the top of the workbench, the pressure assembly is installed in the workbench and located at the bottom of the U-shaped positioning plate, the air inlet end of the electronic pressure gauge is arranged between the U-shaped positioning plate and the pressure assembly, and the air inlet end of the electronic pressure gauge is a flange structure.

[0007] By adopting the above technical scheme, the workbench, the pressure assembly, the U-shaped positioning plate, the diameter assembly, the cover and the electronic pressure gauge for calibration are combined to provide a set of air pressure detection board for pressure gauge, which can be suitable for pressure detection of flange pressure gauges with various diameters of the interface, and can simultaneously detect multiple groups of flange pressure gauges, greatly increasing the application range and detection efficiency of detection.

[0008] Specifically, the pressure assembly comprises a gas distribution pipe, the gas distribution pipe is provided with a connector at equal distances on the top, the connector penetrates through the workbench and is arranged at the bottom of the U-shaped positioning plate, a rubber sealing ring is arranged at the interface of the connector, and the top of the connector is provided with the diameter assembly or the cover.

[0009] By adopting the technical scheme, the flange pressure gauge placed in the U-shaped positioning plate is pressurized or vacuumized by the pressure assembly, and then the pressure value under high pressure or negative pressure is matched and compared by means of the electronic pressure gauge, so that the pressure test on the detected flange pressure gauge is realized.

[0010] Specifically, a clamping is mounted on the gas distribution pipe between the butt joints, and an electric cylinder is arranged at the bottom of the clamping, the sleeve of the electric cylinder is fixedly installed on the bottom of the workbench, and the output end of the electric cylinder is connected with the clamping.

[0011] By adopting the technical scheme, the clamping is pushed up by the electric cylinder, the gas distribution pipe in the clamping drives the butt joint to go up, the distance between the butt joint and the U-shaped positioning plate is reduced, the flange placed at the bottom of the U-shaped positioning plate is clamped, and the flange of the detected flange pressure gauge is connected with the butt diameter assembly on the butt joint.

[0012] Specifically, the pressure assembly further comprises a first air pump, a second air pump and a two-position three-way electromagnetic valve, the air inlet end of the first air pump and the air outlet end of the second air pump are connected with the two-position three-way electromagnetic valve, and one end of the gas distribution pipe is connected with the two-position three-way electromagnetic valve.

[0013] By adopting the technical scheme, the gas in the gas distribution pipe is exhausted by the two-position three-way electromagnetic valve through the first air pump, and the pressure gauge connected with the gas distribution pipe is provided with negative pressure detection condition, and the gas in the gas distribution pipe is exhausted by the two-position three-way electromagnetic valve through the second air pump, and the pressure gauge connected with the gas distribution pipe is provided with high pressure detection condition.

[0014] Specifically, the bottom of the gas distribution pipe is connected with a pressure relief electromagnetic valve through a pipeline.

[0015] By adopting the technical scheme, the pressure relief electromagnetic valve is opened to realize pressure relief in the gas distribution pipe.

[0016] Specifically, the butt diameter assembly comprises a metal ring, the top center of the metal ring is a conical structure, and a rubber sleeve is sleeved outside the conical structure.

[0017] By adopting the technical scheme, the conical structure with the rubber sleeve on the butt diameter assembly is arranged, the conical structure can be inserted into the center of the flange of the detected flange pressure gauge, the center of the flange of the detected flange pressure gauge can be better blocked, and the butt diameter assembly with the required diameter conical structure can be replaced on the butt joint based on the butt joint requirement of the flange pressure gauge with different flange diameters, so that the pressure test of flange pressure gauges with different sizes can be better adapted.

[0018] The utility model discloses a beneficial effect: through the workbench, pressure assembly, U type positioning board, to the diameter subassembly, the cover and the electronic pressure gauge for the calibration component, realize for pressure gauge provides a set of air pressure detection platform, can be applicable to the pressure detection of various flange pressure gauge of the interface diameter size, and can simultaneously detect multiple flange pressure gauge, greatly increased the applicable range and detection efficiency of detection have higher practicality, solve the pressure detection mechanism for the flange pressure gauge of prior art only can detect a group of flange pressure gauge, and the interface diameter of detection is big and the problem of low detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further illustrated below in combination with the drawings and examples.

[0020] Figure 1 It is the workbench schematic diagram of the utility model;

[0021] Figure 2 It is the pressure assembly schematic diagram of the utility model;

[0022] Figure 3 It is the Figure 2 It is the enlarged schematic diagram of A place in the middle;

[0023] Figure 4 It is the cover schematic diagram of the utility model;

[0024] Figure 5 It is the flange pressure table assembly schematic diagram of the utility model;

[0025] Figure 6 It is the electronic pressure schematic diagram;

[0026] In the drawing: workbench 1, pressure assembly 2, branch pipe 21, butt joint 22, clamping 24, electric cylinder 25, two position three way solenoid valve 26, first air pump 27, second air pump 28, pressure relief solenoid valve 29, U type positioning board 3, to the diameter subassembly 4, metal ring 41, conical structure 42, rubber sleeve 43, cover 5, electronic pressure gauge 6. DETAILED DESCRIPTION

[0027] In order to make the technical means, creation features, achieve the purpose and effect of the utility model easy to understand, the utility model is further illustrated below in combination with specific implementation.

[0028] For example, Figures 1-6The utility model discloses a test platform for pressure test, including workbench 1, pressure assembly 2, U type locating plate 3, radial assembly 4, cover 5 and electronic pressure gauge 6 for calibration, U type locating plate 3 is along workbench 1 top equidistance fixed setting, pressure assembly 2 is installed in workbench 1, and is located U type locating plate 3 bottom, the air inlet of electronic pressure gauge 6 is set between U type locating plate 3 and pressure assembly 2, the air inlet of electronic pressure gauge 6 is flange structure.

[0029] When using, by workbench 1, pressure assembly 2, U type locating plate 3, radial assembly 4, cover 5 and electronic pressure gauge 6 for calibration, a set of air pressure detection platform is provided for pressure gauge, can be applicable to the pressure detection of various flange pressure gauge of interface diameter size, and can simultaneously detect multiple flange pressure gauge, greatly increase the application range and detection efficiency of detection have higher practicality.

[0030] The utility model also includes, pressure assembly 2 includes gas pipe 21, the equidistance setting of gas pipe 21 top is connected 22, the connected 22 is out and is set in U type locating plate 3 bottom, the interface of connected 22 is provided with rubber sealing ring 23, the top of connected 22 is provided with radial assembly 4 or cover 5.

[0031] When using, by pressure assembly 2, the flange pressure gauge in U type locating plate 3 is given pressure or vacuum, then the pressure value under high pressure or negative pressure is contrasted with the cooperation of electronic pressure gauge 6, to realize the pressure test of the flange pressure gauge to be detected.

[0032] The utility model also includes, the installation of clamping 24 is located between connected 22 on gas pipe 21, the bottom of clamping 24 is provided with electric cylinder 25, the sleeve of electric cylinder 25 is installed fixedly with workbench 1 inner bottom, and the output end of electric cylinder 25 is connected with clamping 24.

[0033] When using, by electric cylinder 25, clamping 24 is pushed up, makes clamping 24 in gas pipe 21 drive connected 22 up, makes the spacing between connected 22 and U type locating plate 3 reduce, realizes the clamping of flange in U type locating plate 3 bottom, makes the flange of the flange pressure gauge to be detected and the radial assembly 4 on connected 22 get connected.

[0034] The utility model also includes, pressure assembly 2 also includes first air pump 27, second air pump 28 and two position three way electromagnetic valve 26, the air inlet of first air pump 27 and the air outlet of second air pump 28 are connected with two position three way electromagnetic valve 26, one end of gas pipe 21 is connected with two position three way electromagnetic valve 26.

[0035] In use, after the two-position three-way electromagnetic valve 26 connects the first air pump 27 with the branch pipe 21, the personnel provides negative pressure detection conditions for the pressure gauge connected with the branch pipe 21 by the two-position three-way electromagnetic valve 26 through the first air pump 27 to exhaust the branch pipe 21, and after the two-position three-way electromagnetic valve 26 connects the second air pump 28 with the branch pipe 21, the personnel provides high pressure detection conditions for the pressure gauge connected with the branch pipe 21 by the two-position three-way electromagnetic valve 26 through the second air pump 28 to exhaust the branch pipe 21.

[0036] The utility model further includes that the bottom of branch pipe 21 is connected with pressure relief electromagnetic valve 29 through pipeline.

[0037] In use, after the personnel opens the pressure relief electromagnetic valve 29, the personnel can relieve the pressure in the branch pipe 21.

[0038] The utility model further includes that the diameter matching assembly 4 includes a metal ring 41, the top center of the metal ring 41 is a conical structure 42, and the conical structure 42 is provided with a rubber sleeve 43.

[0039] In use, the conical structure 42 with the rubber sleeve 43 on the diameter matching assembly 4 is arranged, the conical structure 42 can be inserted into the flange center of the flange pressure gauge to be detected, the flange center of the flange pressure gauge to be detected can be better blocked, and based on the butt joint requirement of the flange pressure gauges with different flange diameters, the diameter matching assembly 4 with the required diameter conical structure 42 can be replaced on the butt joint 22 to better adapt to the pressure test of flange pressure gauges with different sizes.

[0040] In use, the pre-calibrated electronic pressure gauge 6 is placed inside one of the U-shaped positioning plates 3. Then, based on the flange diameter of the pressure gauge to be tested, a matching assembly 4 with the required mating diameter is selected. The matching assembly 4 is placed over the mating joint 22 of the pressure assembly 2. The matching assembly 4 compensates for any excess material after the pressure gauge and mating joint 22 are pressed together. Thanks to the rubber sealing ring 23, a good seal is maintained between the mating joint 22 and the bottom of the matching assembly 4. The flange of the pressure gauge to be tested is then placed at the bottom of the U-shaped positioning plate 3 and inserted into the conical structure 42. Finally, the electric cylinder 25 pushes up the locking 24, causing the gas distribution pipe 21 inside the locking 24 to move. When connector 22 moves upward, the flange of the pressure gauge under test is clamped and sealed. After the two-position three-way solenoid valve 26 connects the first air pump 27 to the air distribution pipe 21, personnel use the first air pump 27 to evacuate air from the air distribution pipe 21 through the two-position three-way solenoid valve 26, providing negative pressure testing conditions for the pressure gauge connected to the air distribution pipe 21. After the two-position three-way solenoid valve 26 connects the second air pump 28 to the air distribution pipe 21, the second air pump 28 vents air from the air distribution pipe 21 through the two-position three-way solenoid valve 26, providing high pressure testing conditions for the pressure gauge connected to the air distribution pipe 21. The pressure value given by the electronic pressure gauge 6 is used as the standard value. If the pressure value of the pressure gauge on the flange under test is consistent with that of the electronic pressure gauge 6, it is considered qualified.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A test bench for pressure testing, characterized in that Including workbench (1), pressure assembly (2), U-shaped positioning plate (3), radial assembly (4), cover (5) and electronic pressure gauge (6) for calibration, the U-shaped positioning plate (3) is fixedly arranged at the top of the workbench (1) equidistantly, the pressure assembly (2) is installed in the workbench (1) and is located at the bottom of the U-shaped positioning plate (3), the air inlet end of the electronic pressure gauge (6) is arranged between the U-shaped positioning plate (3) and the pressure assembly (2), and the air inlet end of the electronic pressure gauge (6) is flange structure.

2. A test bench for pressure testing according to claim 1, characterized in that The pressure assembly (2) comprises a gas distribution pipe (21), and the top of the gas distribution pipe (21) is provided with butt joints (22) equidistantly, the butt joints (22) are penetrated out of the workbench (1) and are arranged at the bottom of the U-shaped positioning plate (3), the rubber sealing ring (23) is arranged at the interface of the butt joint (22), and the radial assembly (4) or the cover (5) is arranged at the top of the butt joint (22).

3. A test bench for pressure testing according to claim 2, characterized in that The clamping (24) is installed on the gas distribution pipe (21) and between the butt joints (22), the bottom of the clamping (24) is provided with an electric cylinder (25), the sleeve of the electric cylinder (25) is fixedly installed on the bottom of the workbench (1), and the output end of the electric cylinder (25) is connected with the clamping (24).

4. A test bench for pressure testing according to claim 3, characterized in that The pressure assembly (2) further comprises a first air pump (27), a second air pump (28) and a two-position three-way electromagnetic valve (26), the air inlet end of the first air pump (27) and the air outlet end of the second air pump (28) are connected with the two-position three-way electromagnetic valve (26), and one end of the gas distribution pipe (21) is connected with the two-position three-way electromagnetic valve (26).

5. A test bench for pressure testing according to claim 4, characterized in that The bottom of the gas distribution pipe (21) is connected with a pressure relief electromagnetic valve (29) through a pipeline.

6. A test bench for pressure testing according to claim 5, characterized in that The radial assembly (4) comprises a metal ring (41), and the top of the metal ring (41) is provided with a conical structure (42) as a center, and the conical structure (42) is provided with a rubber sleeve (43) outside.

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