An air storage tank testing press

Abstract

The present invention relates to the field of pressure testing machines, in particular to a pressure testing machine for gas storage tanks, which includes a water tank, a fixture tooling, a lifting assembly, a bracket, and an electrical control assembly; an opening is provided at the upper part of the water tank, the fixture tooling is located inside the water tank and can be taken out from the opening, and the fixture tooling is used to fix the gas storage tank and inflate and maintain pressure on the gas storage tank; the fixture tooling is connected to the lifting assembly, and the lifting assembly controls the lifting of the fixture tooling; the lifting assembly is fixedly installed on the bracket, and the bracket is located on the side of the water tank; an electrical control assembly is also provided on the bracket, and the electrical control assembly controls the actions of the fixture tooling and the lifting assembly; the fixture tooling includes a rear plug, a left plug, a right plug, a first upper plug, and a second upper plug; the above plugs are used to block the holes on the gas storage tank, and an air inlet pipe is provided inside the second upper plug, and the gas storage tank is inflated through the air inlet pipe. The advantage of this patent is to place the gas storage tank in water and apply pressure inside the gas storage tank to observe the sealing performance of the gas storage tank.

Description

Technical Field

[0001] The present invention relates to the field of pressure testing machines, and in particular to a pressure testing machine for gas storage tanks. Background Art

[0002] Multiple interfaces are usually welded on the tank body of a gas storage tank. Therefore, before the gas storage tank is put into the market for formal use, it is necessary to detect the airtightness of the gas storage tank. The conventional method is to manually block both ends of the gas storage tank and pump air into the gas storage tank, and observe the change in the reading of the pressure gauge on the gas storage tank to judge the airtightness and pressure resistance of the gas storage tank. Since the process of manually blocking and pressure testing is relatively cumbersome, the detection efficiency is low. Summary of the Invention

[0003] To solve the above problems, the object of the present invention is to provide a pressure testing machine for gas storage tanks. After the holes of the gas storage tank are blocked by plugs and placed in water, pressure is applied to the inside of the gas storage tank to observe the sealing performance of the gas storage tank. The experimental effect is intuitive and it is convenient to find the leakage point of the gas storage tank.

[0004] To achieve the object of the present invention, the following technical solutions are adopted for implementation:

[0005] A pressure testing machine for gas storage tanks includes a water tank, a fixture tooling, a lifting assembly, a bracket and an electrical control assembly; an opening is provided in the upper part of the water tank, and the fixture tooling is located inside the water tank and can be taken out from the opening. The fixture tooling is used to fix the gas storage tank and inflate and maintain pressure on the gas storage tank; the lifting assembly is connected to the fixture tooling, and the lifting assembly controls the lifting of the fixture tooling; the lifting assembly is fixedly installed on the bracket, and the bracket is located on the side of the water tank; an electrical control assembly is also provided on the bracket, and the electrical control assembly controls the actions of the fixture tooling and the lifting assembly;

[0006] The fixture tooling includes a jig bottom plate, left foot pads, right foot pads, rear positioning rods, rear plugs, left plugs, right plugs, upper mounting brackets, first upper plugs, and second upper plugs; the jig bottom plate is horizontally arranged, left foot pads and right foot pads are arranged in the middle of the upper end surface of the jig bottom plate, the left foot pad is used to support the left side of the gas storage tank; the right foot pad is used to support the right side of the gas storage tank; a horizontally arranged rear positioning rod is arranged at the rear of the upper end surface of the jig bottom plate, and the rear positioning rod is used to position the tank body of the gas storage tank from the rear; a rear plug is arranged at the rear of the upper end surface of the jig bottom plate, the rear plug is inclined upward, and the rear plug is used to block the rear observation hole of the gas storage tank; left plugs and right plugs facing each other are respectively arranged at the left end and the right end of the jig bottom plate, and the left plug and the right plug are respectively used to fix the left end and the right end of the gas storage tank; the upper mounting bracket is located above the jig bottom plate, and a first upper plug and a second upper plug with downward directions are arranged on the upper mounting bracket, the first upper plug is used to block the top observation hole of the gas storage tank; the second upper plug is used to block the air inlet hole at the upper part of the gas storage tank; an air charging pipe is also connected inside the second upper plug, and the gas storage tank is inflated through the air charging pipe.

[0007] Preferably, the rear plug, the left plug, the right plug, the first upper plug, and the second upper plug are all driven by cylinders, and rubber pads are arranged at the ends of the rear plug, the left plug, the right plug, the first upper plug, and the second upper plug.

[0008] Preferably, there are at least two rear positioning rods and they have the same height; the rear positioning rods are connected to the jig bottom plate through rear brackets.

[0009] Preferably, the left plug and the right plug are respectively fixedly installed on the jig bottom plate through a left bracket and a right bracket.

[0010] Preferably, the upper mounting bracket includes a counterweight rod, a counterweight block, and a tension screw rod. Two vertical counterweight rods are respectively fixedly arranged at the left and right ends of the upper end surface of the jig bottom plate, counterweight blocks are fixedly arranged at the tops of the two counterweight rods on the same side, and the left and right counterweight blocks are connected through a tension screw rod; an installation plate is arranged on the tension screw rod, and the first upper plug and the second upper plug are arranged on the installation plate through cylinders.

[0011] Preferably, left baffles and right baffles are respectively arranged on the left and right sides of the jig bottom plate, a left shaft is arranged on the left baffle, and a right shaft is arranged on the right baffle; a chute is arranged on the bracket, the left shaft and the right shaft are arranged in the chute through bearings, and both the left shaft and the right shaft are connected to the output end of the lifting assembly.

[0012] Preferably, the lifting assembly uses a cylinder, and a protective cover is arranged on the bracket outside the lifting assembly.

[0013] Preferably, the lower part of the bracket is arranged on the inner walls on the left and right sides of the water tank.

[0014] Preferably, a drain port is provided at the lower part of the water tank, and a water tank plug is detachably provided on the drain port.

[0015] Preferably, the electrical control assembly includes a control circuit, a pressure gauge, a contact pressure gauge, an emergency stop button, and a manual operation switch; the control circuit is used to control the actions of the fixture tooling and the lifting assembly; the pressure gauge displays the internal pressure of the gas storage tank; the contact pressure gauge is used to feed back a signal to the control circuit to stop inflation after the pressure of the gas storage tank reaches the set pressure; the emergency stop button is used for the emergency braking of the equipment; the manual operation switch is used to switch the equipment to the manual mode.

[0016] In summary, the advantages of the present invention are that after blocking the holes of the gas storage tank with plugs and placing it in water, pressure is applied to the inside of the gas storage tank to observe the sealing performance of the gas storage tank. The experimental effect is intuitive and it is convenient to find the leakage point of the gas storage tank; the efficiency is 10 times that of the conventional manual method. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Front view of the test press.

[0018] Figure 2 Structural schematic diagram of the back of the test press.

[0019] Figure 3 and Figure 4 Structural schematic diagram of the gas storage tank.

[0020] Figure 5 Structural schematic diagram of the water tank and the bracket part.

[0021] Figure 6 Structural schematic diagram of the fixture tooling and the lifting assembly.

[0022] Figure 7 Structural schematic diagram of the fixture tooling.

[0023] Figure 8 Structural schematic diagram of the electrical control assembly. DETAILED DESCRIPTION OF THE INVENTION

[0024] As Figures 1 to 8 shown, a gas storage tank test press includes a water tank 1, a fixture tooling 2, a lifting assembly 3, a bracket 4, and an electrical control assembly 5. An opening 11 is provided at the upper part of the water tank 1. The fixture tooling 2 is located inside the water tank 1 and can be taken out from the opening 11. The fixture tooling 2 is used to fix the gas storage tank 6 and inflate and maintain pressure on the gas storage tank 6. The lifting assembly 3 is connected to the fixture tooling 2, and the lifting assembly 3 controls the lifting of the fixture tooling 2. The lifting assembly 3 is fixedly installed on the bracket 4. The bracket 4 is located on both sides of the water tank 1. The electrical control assembly 5 is provided on the bracket 4, and the electrical control assembly 5 controls the actions of the fixture tooling 2 and the lifting assembly 3.

[0025] As Figure 3 and Figure 4 shown, the tank body of the gas storage tank 6 is cylindrical and horizontally arranged. The bottom of the tank body is provided with a right wheel bracket 61 and a left foot bracket 62. The top of the tank body is provided with a top observation hole 63 and an air inlet hole 64. The lower part of the rear side of the tank body is provided with a rear side observation hole 65.

[0026] As Figure 2 and 5 shown, a drain port 12 is provided at the lower part of the water tank 1. A water tank plug 13 is detachably arranged on the drain port 12, which is convenient for draining the water in the water tank 1.

[0027] As Figure 6 and Figure 7 shown, the fixture tooling 2 includes a fixture base plate 21, a left foot pad 22, a right foot pad 23, a rear positioning rod 24, a rear plug 25, a left plug 26, a right plug 27, an upper mounting frame 28, a first upper plug 29 and a second upper plug 210. The fixture base plate 21 is horizontally arranged, and there are multiple hollow parts on the fixture base plate 21 to reduce the weight of the fixture base plate 21. A left foot pad 22 and a right foot pad 23 are arranged in the middle of the upper end surface of the fixture base plate 21. The left foot pad 22 is used to support the left tank body of the gas storage tank. The right foot pad 23 is used to support the right wheel bracket 61 of the gas storage tank 6. A horizontally arranged rear positioning rod 24 is arranged at the rear side of the upper end surface of the fixture base plate 21. The rear positioning rod 24 is used to position the tank body of the gas storage tank from the rear side. A rear plug 25 is arranged at the rear side of the upper end surface of the fixture base plate 21. The rear plug 25 is inclined upward. The rear plug 25 is used to block the rear side observation hole 65 of the gas storage tank. The left end and the right end of the fixture base plate 21 are respectively provided with opposite left plugs 26 and right plugs 27. The left plug 26 and the right plug 27 are respectively used to fix the left end and the right end of the gas storage tank. If there are connection holes at the left and right ends of the gas storage tank 6, the left plug 26 and the right plug 27 are used to block the connection holes. The upper mounting frame 28 is located above the fixture base plate 21. A first upper plug 29 and a second upper plug 210 with downward directions are arranged on the upper mounting frame 28. The first upper plug 29 is used to block the top observation hole 63 of the gas storage tank. The second upper plug 210 is used to block the air inlet hole 64 at the upper part of the gas storage tank. A charging pipe 2101 is also arranged in the second upper plug 210, and the gas storage tank 6 is inflated through the charging pipe 2101.

[0028] The rear plug 25, the left plug 26, the right plug 27, the first upper plug 29 and the second upper plug 210 are all driven by cylinders, which is convenient for controlling the actions of the above plugs. Rubber pads are arranged at the ends of the rear plug 25, the left plug 26, the right plug 27, the first upper plug 29 and the second upper plug 210 to improve the sealing performance of the sealing part.

[0029] There are at least two rear positioning rods 24, and they have the same height. The rear positioning rods 24 are connected to the fixture base plate 21 through rear brackets 241, facilitating the positioning during the installation of the gas storage tank.

[0030] The left plug 26 and the right plug 27 are respectively fixedly installed on the fixture base plate 21 through the left bracket 261 and the right bracket 271.

[0031] As Figure 7 shown, the upper mounting frame 28 includes a counterweight rod 281, a counterweight block 282, and a tension screw rod 283. Two vertical counterweight rods 281 are respectively fixedly arranged at the left and right ends of the upper end surface of the fixture base plate 21. The counterweight blocks 282 are fixedly arranged at the tops of the two counterweight rods 281 on the same side. The left and right counterweight blocks 282 are connected through the tension screw rod 283. An installation plate 284 is arranged on the tension screw rod 283. The first upper plug 29 and the second upper plug 210 are arranged on the installation plate 284 through a cylinder, facilitating the timely adjustment of the positions of the first upper plug 29 and the second upper plug 210 according to the positions of the air inlet holes and observation holes of the gas storage tanks of different models.

[0032] As Figure 5 、 6 and 7 shown, a left baffle 211 and a right baffle 212 are respectively arranged on the left and right sides of the fixture base plate 21. A left shaft 213 is arranged on the left baffle 211, and a right shaft 214 is arranged on the right baffle 212. A chute 41 is arranged on the bracket 4. The left shaft 213 and the right shaft 214 are arranged in the chute 41 through bearings, and both the left shaft 213 and the right shaft 214 are connected to the output end of the lifting assembly 3. The lifting assembly 3 adopts a cylinder, and a protective cover 42 is arranged on the bracket 4 outside the lifting assembly 3. The lower part of the bracket 41 is arranged on the inner walls of the left and right sides of the water tank 1. The structure of the above chute 41 is beneficial to ensuring the stability of the fixture tooling 2 during lifting.

[0033] As Figure 8 shown, the electrical control assembly 5 includes a control circuit, a pressure gauge 51, a contact pressure gauge 52, and an emergency stop button 53; the control circuit is used to control the actions of the fixture tooling 2 and the lifting assembly 3; the pressure gauge 51 displays the internal pressure of the gas storage tank; the contact pressure gauge 52 is used to feedback a signal to the control circuit to stop inflation after the pressure of the gas storage tank reaches the set pressure. The emergency stop button 53 is used for the emergency braking of the equipment; the manual operation switch 54 is used to switch the equipment to the manual mode.

[0034] When the equipment is working, first place the air storage tank 6 on the fixture tooling 2. When placing it, align the right wheel bracket 61 of the air storage tank 6 with the right foot pad 23. The left foot pad 22 supports the bottom of the tank body on the left side of the left foot bracket 62. The rear part of the air storage tank 6 is positioned by two rear positioning rods 24. Then, the cylinder drives the rear plug 25, the left plug 26, the right plug 27, the first upper plug 29 and the second upper plug 210 to move, clamping the left and right ends of the air storage tank 6 (if there are connection holes on both sides, seal the connection holes), and at the same time blocking the top observation hole 63, the air inlet hole 64 and the rear observation hole 65. Then, the lifting assembly 3 drives the fixture tooling 2 to move downward, completely immersing the air storage tank 6 in the water of the water tank 1. Inflate the air storage tank 6 through the air inlet pipe 2101 until the internal pressure of the air storage tank 6 reaches the set value (for example, 1.2 MPa). At this time, the electric contact pressure gauge 52 acts, stopping the inflation action and maintaining the pressure of the air storage tank 6. The pressure maintaining time is set to 8 seconds. During the pressure maintaining process, observe whether there are bubbles generated on the air storage tank 6. If no bubbles are generated, it indicates that the quality of the air storage tank 6 is qualified. The lifting assembly 3 drives the fixture tooling 2 to move upward, moving the air storage tank above the water surface, and removing the above plugs for pressure relief. If bubbles are generated, observe and record the position where the bubbles are generated, press the manual operation switch 54, manually move the fixture tooling 2 upward, remove the above plugs for pressure relief, and repair the position where the bubbles are generated.

[0035] The advantage of this equipment is that after blocking the holes of the air storage tank with plugs and placing it in water, pressure is applied inside the air storage tank to observe the sealing performance of the air storage tank. The experimental effect is intuitive and it is convenient to find the leakage point of the air storage tank.

Claims

1. An air storage tank testing press, characterized in that, It includes a water tank (1), a fixture tooling (2), a lifting component (3), a bracket (4), and an electrical control component (5); an opening (11) is provided at the upper part of the water tank (1), the fixture tooling (2) is located inside the water tank (1) and can be taken out from the opening (11), and the fixture tooling (2) is used to fix the gas storage tank and inflate and maintain pressure for the gas storage tank; the lifting component (3) is connected to the fixture tooling (2), and the lifting component (3) controls the lifting of the fixture tooling (2); the lifting component (3) is fixedly installed on the bracket (4), and the bracket (4) is located on the side of the water tank (1); an electrical control component (5) is also provided on the bracket (4), and the electrical control component (5) controls the actions of the fixture tooling (2) and the lifting component (3). The fixture tooling (2) includes a fixture bottom plate (21), a left foot pad (22), a right foot pad (23), a rear positioning rod (24), a rear plug (25), a left plug (26), a right plug (27), an upper mounting frame (28), a first upper plug (29), and a second upper plug (210); the fixture bottom plate (21) is arranged horizontally, a left foot pad (22) and a right foot pad (23) are arranged in the middle of the upper end surface of the fixture bottom plate (21), and the left foot pad (22) is used to support the left side of the gas storage tank; the right foot pad (23) is used to support the right side of the gas storage tank; a horizontally arranged rear positioning rod (24) is arranged at the rear of the upper end surface of the fixture bottom plate (21), and the rear positioning rod (24) is used to position the tank body of the gas storage tank from the rear; a rear plug (25) is arranged at the rear of the upper end surface of the fixture bottom plate (21), the rear plug (25) is inclined upward, and the rear plug (25) is used to block the rear observation hole of the gas storage tank; a left plug (26) and a right plug (27) facing each other are respectively arranged at the left end and the right end of the fixture bottom plate (21), and the left plug (26) and the right plug (27) are respectively used to fix the left end part and the right end part of the gas storage tank; the upper mounting frame (28) is located above the fixture bottom plate (21), a first upper plug (29) and a second upper plug (210) with downward directions are arranged on the upper mounting frame (28), the first upper plug (29) is used to block the top observation hole of the gas storage tank; the second upper plug (210) is used to block the air inlet hole at the upper part of the gas storage tank; an air charging pipe (2101) is also connected inside the second upper plug (210), and the gas storage tank is inflated through the air charging pipe (2101). The rear plug (25), the left plug (26), the right plug (27), the first upper plug (29), and the second upper plug (210) are all driven by air cylinders, and rubber pads are arranged at the ends of the rear plug (25), the left plug (26), the right plug (27), the first upper plug (29), and the second upper plug (210). There are at least two rear positioning rods (24) with the same height; the rear positioning rods (24) are connected to the fixture base plate (21) through rear brackets (241); the left plug (26) and the right plug (27) are respectively fixedly installed on the fixture base plate (21) through the left bracket (261) and the right bracket (271); The upper mounting frame (28) includes a counterweight rod (281), a counterweight block (282) and a tension screw rod (283). Two vertical counterweight rods (281) are respectively fixedly arranged at the left and right ends of the upper end surface of the fixture base plate (21). The counterweight blocks (282) are fixedly arranged at the tops of the two counterweight rods (281) on the same side. The left and right counterweight blocks (282) are connected through the tension screw rod (283); an installation plate (284) is arranged on the tension screw rod (283), and the first upper plug (29) and the second upper plug (210) are arranged on the installation plate (284) through a cylinder; Left and right side baffles (211) and (212) are respectively arranged on the left and right sides of the fixture base plate (21). A left shaft (213) is arranged on the left side baffle (211), and a right shaft (214) is arranged on the right side baffle (212); a chute (41) is arranged on the bracket (4), and the left shaft (213) and the right shaft (214) are arranged in the chute (41) through bearings, and both the left shaft (213) and the right shaft (214) are connected to the output end of the lifting assembly (3).

2. The air storage tank testing press according to claim 1, characterized in that, The lifting assembly (3) adopts a cylinder, and a protective cover (42) is arranged on the bracket (4) on the outside of the lifting assembly (3).

3. A gas storage tank testing press according to claim 1, characterized in that, The lower part of the bracket (4) is arranged on the inner walls on the left and right sides of the water tank (1).

4. A gas storage tank testing press according to claim 1, characterized in that, A drain port (12) is arranged at the lower part of the water tank (1), and a water tank plug (13) is detachably arranged on the drain port (12).

5. A gas storage tank testing press according to claim 1, characterized in that, The electrical control assembly (5) includes a control circuit, a pressure gauge (51), a contact pressure gauge (52), an emergency stop button (53) and a manual operation switch (54); the control circuit is used to control the actions of the fixture tooling (2) and the lifting assembly (3); the pressure gauge (51) displays the internal pressure of the air storage tank; the contact pressure gauge (52) is used to feedback a signal to the control circuit to stop inflation after the pressure of the air storage tank reaches the set pressure; the emergency stop button (53) is used for the emergency braking of the equipment; the manual operation switch (54) is used to switch the equipment to the manual mode.

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