Pressure testing device of pressure vessel

Abstract

The utility model provides a pressure testing device of a pressure vessel, which comprises a bottom frame, a lifting assembly arranged at the upper end of the bottom frame, a fixed plate connected to the upper end of the lifting assembly, the lifting assembly comprises a sliding chute arranged on a base, a bidirectional screw rod rotatably arranged in the sliding chute, two ends of the bidirectional screw rod are in threaded connection with sliding blocks, and the two ends of the bidirectional screw rod are in threaded connection with the fixed plate. According to the pressure testing device of the pressure container, the pressure testing assembly can be connected with a plurality of containers to be tested in advance through the arrangement of a plurality of fourth connecting pipes, the detection speed of the containers to be tested is increased, and the pressure testing assembly can be connected with the containers to be tested through the lifting assembly. The height of the pressure test assembly is adjusted, so that the pressure test assembly can be suitable for pressure containers of different sizes and shapes, and the universality and flexibility of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure testing devices, in particular to a pressure testing device for a pressure container. Background Art

[0002] The pressure test device can apply a test pressure higher than its normal working pressure to the pressure vessel to verify the structural integrity of the vessel. If the vessel does not leak, deform or rupture under the test pressure, it indicates that it can safely withstand the expected working pressure.

[0003] In the prior art, a pressurized air pump is usually installed at the upper end of a frame, a main air pipe is arranged on the upper side of the frame, a connecting pipe is arranged between the main air pipe and the air pump, and a plurality of pressure test devices are connected to the front side of the main air pipe to perform pressure tests on the containers to be tested. However, in this method, the main air pipe is fixedly arranged on the frame, which makes it inconvenient to adjust the height of the pressure test device. Pressure vessels of different models and sizes may need to be pressure tested at different heights. If the height of the pressure test device is fixed, its ability to adapt to different containers will be limited, thereby reducing the versatility and flexibility of the equipment. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a pressure testing device for a pressure vessel, which not only can connect the pressure testing assembly to multiple containers to be tested in advance by setting a plurality of connecting pipes four, thereby improving the speed of testing the containers to be tested, but also can adjust the height of the pressure testing assembly through a lifting assembly, so that the pressure testing assembly can be suitable for pressure vessels of different sizes and shapes, thereby improving the versatility and flexibility of the device.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pressure testing device for a pressure vessel, including a base frame, a lifting assembly is arranged on the upper end of the base frame, the upper end of the lifting assembly is connected with a fixed plate, the lifting assembly includes a slide groove arranged on the base, a bidirectional screw rod is rotatably arranged inside the slide groove, both ends of the bidirectional screw rod are threadedly connected with sliders, the front side wall and the rear side wall of the slider are rotatably connected with two rotating plates, the lower end of the fixed plate is symmetrically provided with fixed blocks, the end of the rotating plate away from the slider is rotatably connected with the adjacent fixed blocks, a driving member for driving the bidirectional screw rod to rotate is arranged at the right end of the base frame, and a pressure testing assembly is arranged at the upper end of the fixed plate.

[0006] As a further improvement of the utility model, the driving member includes a mounting frame arranged at the right end of the base frame, a motor is arranged at the front end of the mounting frame, a worm connected to the output end of the motor is rotatably connected at the rear end, and the right end of the bidirectional lead screw passes through the side wall of the slide groove and is connected to a worm wheel meshing with the worm.

[0007] As a further improvement of the utility model, the pressure test assembly includes a high-pressure air pump arranged on the rear side of the upper end of the fixed plate, a support frame is arranged on the rear side of the high-pressure air pump, a main air pipe is fixedly arranged on the support frame, the high-pressure air pump is connected to the main air pipe through a connecting pipe 1, a plurality of connecting pipes 2 are arranged at the front end of the main air pipe, a valve 1 is arranged at the front end of the connecting pipe 2, a connecting pipe 3 is connected to the front side of the connecting pipe 2, a pressure gauge 1 is installed on the upper side of the connecting pipe 3, and a connecting pipe 4 is connected to the front end of the connecting pipe 3.

[0008] As a further improvement of the utility model, a second pressure exhaust valve is installed at the right end of the main air pipe, and a second pressure gauge is installed on the right side of the main air pipe.

[0009] As a further improvement of the utility model, a fixing frame is arranged at the front end of the high-pressure air pump, a round rod is arranged in the middle of the fixing frame, and hooks corresponding to the four connecting pipes are evenly mounted on the round rod.

[0010] As a further improvement of the utility model, telescopic columns are evenly arranged between the base and the fixing plate.

[0011] As a further improvement of the utility model, universal wheels are evenly arranged at the bottom of the base frame, and brake pads are arranged on the universal wheels.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Firstly, by setting up a lifting assembly, starting the motor can rotate the worm, and the rotation of the worm can rotate the worm wheel, which drives the bidirectional lead screw to rotate, and the bidirectional lead screw drives the slider to move along the slide groove to both ends or the middle, so as to rotate the rotating plate, and the rotation of the rotating plate can drive the fixed plate to move downward or upward, so that the fixed plate drives the pressure test assembly to move up and down, and then the height of the pressure test assembly is adjusted, so that the pressure test assembly can be suitable for pressure vessels of different sizes and shapes, and can ensure that the interface of the pressure test assembly and the container is accurately connected, whether it is the top, bottom or side, thereby improving the versatility and flexibility of the device, and each slider is rotatably connected to four rotating plates on the front and back sides, which can form a stable quadrilateral together with the fixed block to improve the stability of the device.

[0014] Secondly, by providing a plurality of connecting pipes 4, the pressure test assembly can be connected to a plurality of containers to be tested in advance, thereby improving the speed of testing the containers to be tested.

[0015] Third, telescopic columns are evenly arranged between the base and the fixed plate. The telescopic columns can ensure the stability and balance of the fixed plate and the pressure test assembly when subjected to high pressure, avoid tilting or deformation due to uneven force, thereby protecting the container and test equipment from damage. In addition, the telescopic columns can absorb part of the vibration or impact caused by pressure changes during the pressure test, reduce the mechanical stress on the container and the test system, extend the life of the equipment and ensure the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the lifting assembly structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pressure test assembly of the utility model;

[0020] Figure 4 It is a front view structural schematic diagram of the utility model.

[0021] In the figure: 101, base frame; 102, fixing plate; 103, two-way screw; 104, slider; 105, rotating plate; 106, fixing block; 107, mounting frame; 108, motor; 109, worm; 110, worm gear; 201, high-pressure air pump; 202, supporting frame; 203, main air pipe; 204, connecting pipe 1; 205, connecting pipe 2; 206, valve 1; 207, connecting pipe 3; 208, pressure gauge 1; 209, connecting pipe 4; 210, pressure exhaust valve 2; 211, pressure gauge 2; 212, fixing frame; 213, round rod; 214, hook; 301, universal wheel; 302, brake pad; 303, telescopic column. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] like Figure 1 , 2As shown in Figure 3, a pressure testing device for a pressure vessel includes a base frame 101, a lifting assembly is arranged at the upper end of the base frame 101, and a fixed plate 102 is connected to the upper end of the lifting assembly, the lifting assembly includes a slide groove arranged on the base, a bidirectional screw rod 103 is rotatably arranged inside the slide groove, sliders 104 are threadedly connected to both ends of the bidirectional screw rod 103, the front side wall and the rear side wall of the slider 104 are rotatably connected to two rotating plates 105, the lower end of the fixed plate 102 is symmetrically provided with fixed blocks 106, and the ends of the rotating plates 105 away from the slider 104 are rotatably connected to the adjacent fixed blocks 106, a driving member for driving the bidirectional screw rod 103 to rotate is arranged at the right end of the base frame 101, and a pressure testing assembly is arranged at the upper end of the fixed plate 102.

[0024] like Figure 1 , 2 As shown, the driving member includes a mounting frame 107 arranged at the right end of the base frame 101, a motor 108 is arranged at the front end of the mounting frame 107, and a worm 109 connected to the output end of the motor 108 is rotatably connected at the rear end, and the right end of the bidirectional lead screw 103 passes through the side wall of the slide groove and is connected to a worm wheel 110 meshing with the worm 109. Starting the motor 108 can rotate the worm 109, and the rotation of the worm 109 can rotate the worm wheel 110, and the worm wheel 110 drives the bidirectional lead screw 103 to rotate, and the bidirectional lead screw 103 drives the slider 104 to move along the slide groove to both ends or the middle, so as to make the rotating plate 1 05 rotates, and the rotation of the rotating plate 105 can drive the fixed plate 102 to move downward or upward, so that the fixed plate 102 drives the pressure test assembly to move up and down, and then adjusts the height of the pressure test assembly, so that the pressure test assembly can be suitable for pressure vessels of different sizes and shapes, and can ensure that the interface of the pressure test assembly and the container is accurately docked, whether it is the top, bottom or side, thereby improving the versatility and flexibility of the device. Each slider 104 is rotatably connected to four rotating plates 105 on both sides, which can form a stable quadrilateral together with the fixed block 106 to improve the stability of the device.

[0025] like Figure 1 , 3As shown, the pressure test assembly includes a high-pressure air pump 201 arranged on the rear side of the upper end of the fixed plate 102, a support frame 202 is arranged on the rear side of the high-pressure air pump 201, a main air pipe 203 is fixedly arranged on the support frame 202, the high-pressure air pump 201 is connected to the main air pipe 203 through a connecting pipe 1 204, a plurality of connecting pipes 205 are arranged at the front end of the main air pipe 203, a valve 1 206 is arranged at the front end of the connecting pipe 205, a connecting pipe 3 207 is connected to the front side of the connecting pipe 205, a pressure gauge 1 208 is installed on the upper side of the connecting pipe 3 207, a connecting pipe 4 209 is connected to the front end of the connecting pipe 3 207, a pressure exhaust valve 210 is installed at the right end of the main air pipe 203, and a pressure gauge 211 is installed on the right side of the main air pipe 203. By arranging multiple connecting pipes 4 209, the pressure test assembly can be connected to multiple containers to be tested in advance, thereby improving the speed of detecting the containers to be tested.

[0026] like Figure 1 , 3 As shown in FIG. 4 , a pressure exhaust valve 210 is installed at the right end of the main gas pipe 203 , and a pressure gauge 211 is installed on the right side of the main gas pipe 203 .

[0027] like Figure 1 , 3 As shown, a fixing frame 212 is provided at the front end of the high-pressure air pump 201, a round rod 213 is provided in the middle of the fixing frame 212, and hooks 214 corresponding to the connecting pipe four 209 are evenly installed on the round rod 213. When the pressure test is completed, the connecting pipe four 209 can be wrapped around the hook 214 to keep it tidy.

[0028] like Figure 1 , 4 As shown, telescopic columns 303 are evenly arranged between the base and the fixed plate 102. The telescopic columns 303 can ensure the stability and balance of the fixed plate 102 and the pressure test assembly when subjected to high pressure, avoid tilting or deformation due to uneven force, thereby protecting the container and the test equipment from damage. In addition, the telescopic columns 303 can absorb part of the vibration or impact caused by pressure changes during the pressure test, reduce the mechanical stress on the container and the test system, extend the life of the equipment and ensure the accuracy of the test data.

[0029] Working principle: When using the device, move the device to the vicinity of the pressure vessel that needs to be pressure tested through the universal wheel 301, step on the brake pad 302 to fix the device, and then start the motor 108 to rotate the worm 109. The rotation of the worm 109 can rotate the worm wheel 110, and the worm wheel 110 drives the bidirectional screw 103 to rotate. The bidirectional screw 103 drives the slider 104 to move along the slide groove to both ends or the middle, so that the rotating plate 105 rotates. The rotation of the rotating plate 105 can drive the fixed plate 102 to move downward or upward, so that the fixed plate 102 drives the pressure test assembly to move up and down, and then the height of the pressure test assembly is adjusted to a suitable height. The pressure test assembly can be applied to pressure vessels of different sizes and shapes, and the interface between the pressure test assembly and the container can be accurately connected. Then, the connecting pipe 209 is connected to multiple containers to be tested respectively, and then the high-pressure air pump 201 is started. The high-pressure air pump 201 pressurizes the atmosphere into the main air pipe 203, and then the valve 206 switch is opened to send the air pressure into the container to be tested. The user observes the pressure gauge 208. When the pressure gauge 208 reaches the detection standard of the container to be tested, the valve 206 is closed, and then the valve 206 switch of the next group of pressure test assemblies is quickly opened to perform the pressurization detection of the next group of containers to be tested.

[0030] Telescopic columns 303 are evenly arranged between the base and the fixed plate 102. The telescopic columns 303 can ensure the stability and balance of the fixed plate 102 and the pressure test assembly when subjected to high pressure, avoid tilting or deformation due to uneven force, thereby protecting the container and the test equipment from damage. In addition, the telescopic columns 303 can absorb part of the vibration or impact caused by pressure changes during the pressure test, reduce the mechanical stress on the container and the test system, extend the life of the equipment and ensure the accuracy of the test data.

[0031] According to another embodiment of the present invention, Figure 1 , 4 As shown, universal wheels 301 are evenly arranged at the bottom of the base frame 101, and brake pads 302 are arranged on the universal wheels 301. The universal wheels 301 allow the device to move freely in all directions, which greatly improves the convenience of carrying the equipment in a factory workshop or laboratory. The arranged brake pads 302 ensure that the equipment can stay firmly in place when it needs to be fixed to prevent accidental sliding or movement.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A pressure testing device for a pressure vessel, comprising a base frame (101), characterized in that: A lifting assembly is arranged at the upper end of the base frame (101), and a fixed plate (102) is connected to the upper end of the lifting assembly. The lifting assembly comprises a slide groove arranged on the base, and a bidirectional screw rod (103) is rotatably arranged inside the slide groove. Slide blocks (104) are threadedly connected at both ends of the bidirectional screw rod (103). The front side wall and the rear side wall of the slide block (104) are both rotatably connected to two rotating plates (105). Fixed blocks (106) are symmetrically arranged at the lower end of the fixed plate (102), and one end of the rotating plate (105) away from the slide block (104) is rotatably connected to the adjacent fixed blocks (106). A driving member for driving the bidirectional screw rod (103) to rotate is arranged at the right end of the base frame (101), and a pressure test assembly is arranged at the upper end of the fixed plate (102).

2. The pressure testing device for a pressure vessel according to claim 1, characterized in that: The driving member comprises a mounting frame (107) arranged at the right end of the base frame (101); a motor (108) is arranged at the front end of the mounting frame (107); a worm (109) connected to the output end of the motor (108) is rotatably connected at the rear end; and the right end of the bidirectional lead screw (103) passes through the side wall of the slide groove and is connected to a worm wheel (110) meshing with the worm (109).

3. The pressure testing device for a pressure vessel according to claim 1, characterized in that: The pressure test assembly comprises a high-pressure air pump (201) arranged on the rear side of the upper end of the fixing plate (102); a support frame (202) is arranged on the rear side of the high-pressure air pump (201); a main air pipe (203) is fixedly arranged on the support frame (202); the high-pressure air pump (201) is connected to the main air pipe (203) via a connecting pipe 1 (204); a plurality of connecting pipes 2 (205) are arranged at the front end of the main air pipe (203); a valve 1 (206) is arranged at the front end of each connecting pipe 2 (205); a connecting pipe 3 (207) is connected to the front side of each connecting pipe 3 (207); a pressure gauge 1 (208) is installed on the upper side of each connecting pipe 3 (207); and a connecting pipe 4 (209) is connected to the front end of each connecting pipe 3 (207).

4. The pressure testing device for a pressure vessel according to claim 3, characterized in that: A second pressure exhaust valve (210) is installed at the right end of the main gas pipe (203), and a second pressure gauge (211) is installed on the right side of the main gas pipe (203).

5. The pressure testing device for a pressure vessel according to claim 3, characterized in that: A fixing frame (212) is provided at the front end of the high-pressure air pump (201), a round rod (213) is provided in the middle of the fixing frame (212), and hooks (214) corresponding to the connecting pipe four (209) are evenly mounted on the round rod (213).

6. The pressure testing device for a pressure vessel according to claim 1, characterized in that: Telescopic columns (303) are evenly arranged between the base and the fixing plate (102).

7. The pressure testing device for a pressure vessel according to claim 1, characterized in that: Universal wheels (301) are evenly arranged at the bottom of the base frame (101), and brake pads (302) are arranged on the universal wheels (301).

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