Storage tank anti-corrosion sealing detection device

Abstract

The utility model discloses a storage tank anticorrosion sealing detection device, which relates to the technical field of sealing detection devices and comprises a bottom frame, the right side of the top of the bottom frame is fixedly connected with a helium storage tank, and the left side of the top of the bottom frame is provided with a gas booster pump. An anti-backflow assembly capable of preventing gas in the storage tank from flowing backwards is arranged in the transfer connector. According to the storage tank anti-corrosion sealing detection device, the first inner pipe sleeve, the second inner pipe sleeve, the spring and the rubber ball are arranged, when the storage tank anti-corrosion sealing detection device is used, helium is pressurized by the gas booster pump and reaches the transfer connector along the gas supply pipe, and along with the increase of the internal gas pressure of the first inner pipe sleeve, the spring is pressed to retract, and the rubber ball is pushed away; and the rubber ball is pressed at the opening of the second inner pipe sleeve by pressure, so that gas backflow can be prevented, the front-end non-return gas backflow prevention function is realized, and the problem that the device does not have the front-end non-return gas backflow prevention function is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing detection devices, specifically a storage tank anti-corrosion sealing detection device. Background Technology

[0002] Sealing inspection is one of the important parts of corrosion inspection of storage tanks. Corrosion of storage tanks mainly occurs in five locations: tank top, tank wall, tank bottom, tank foundation and seal. Among them, aging of seals and mechanical damage can cause leakage.

[0003] Currently, most methods for testing the corrosion and sealing of storage tanks on the market use the helium injection method. This involves injecting helium into the tank under pressure and then using instruments to test the sealing points. If helium escapes, it indicates a problem with the seal at the corresponding location, requiring timely repair. However, this method has some functional shortcomings in actual use and has room for improvement. For example, when injecting helium, a direct connection to a gas cylinder or a booster pump is usually used. When there is pressure inside the tank, if the initial pressure of the booster pump is not up to standard, gas backflow can easily occur, causing damage to the booster pump. It also lacks a front-end check valve to prevent gas backflow.

[0004] Now, a novel tank corrosion and sealing detection device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a storage tank corrosion prevention and sealing detection device to solve the problem mentioned in the background art of not having the function of front-end check valve to prevent gas backflow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a storage tank anti-corrosion and sealing detection device, comprising a bottom frame, a helium storage tank fixedly connected to the right side of the top of the bottom frame, a gas booster pump installed on the left side of the top of the bottom frame, an inlet pipe movably connected between the helium storage tank and the gas booster pump, a transfer joint provided above the bottom frame, a flange provided on the left side of the transfer joint, a manual regulating valve installed on the right side of the transfer joint, a gas supply pipe movably connected between the gas booster pump and the manual regulating valve, a pressure gauge installed at the top of the transfer joint, and a PLC controller fixedly connected to the right side of the bottom frame. A sensor host is located on the right side of the PLC controller. A sensor wiring is movably connected between the PLC controller and the sensor host. A helium sensor is fixedly connected to the top left side of the sensor host. An internal threaded mounting seat is fixedly connected to the left side of the transfer joint. A first sealing ring is glued to the left side of the internal threaded mounting seat. An external threaded connecting pipe is welded to the right side of the flange. A second sealing ring is glued to the right side of the external threaded connecting pipe. An arc-shaped suction tube is fixedly connected to the top right side of the sensor host. A negative pressure fan is installed on the right side of the arc-shaped suction tube. An anti-backflow component is installed inside the transfer joint to prevent gas from flowing back into the storage tank.

[0007] The anti-backflow assembly includes a first inner sleeve, which is fixedly connected to the right side inside the transfer joint. A second inner sleeve is fixedly connected to the left side inside the transfer joint. A spring is welded to the right side of the second inner sleeve, and a rubber ball is glued to the right side of the spring.

[0008] As a further technical solution of this utility model, the inner diameters of the first inner sleeve and the second inner sleeve are the same, and the horizontal center lines of the adapter, the first inner sleeve, and the second inner sleeve coincide.

[0009] As a further technical solution of this utility model, the bottom end of the pressure gauge passes through the intermediate connector and the interior of the first inner tube sleeve, and there is a distance between the first inner tube sleeve and the second inner tube sleeve.

[0010] As a further technical solution of this utility model, the outer diameter of the rubber ball is larger than the inner diameter of the first inner sleeve, and the rubber ball is elastic.

[0011] As a further technical solution of this utility model, the external thread of the external threaded connecting pipe and the internal thread of the internal threaded mounting seat are matched, and the left side of the first sealing ring is tightly fitted with the flange.

[0012] As a further technical solution of this utility model, the helium sensor passes through the arc-shaped suction tube and extends into the interior, and the sensor host, the helium sensor, and the negative pressure fan are electrically connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the tank corrosion prevention and sealing detection device not only realizes the function of front-end check to prevent gas backflow, but also realizes the function of replaceable flange, and also realizes the function of gas suction auxiliary detection.

[0014] (1) By setting a first inner tube sleeve, a second inner tube sleeve, a spring and a rubber ball, when in use, the transfer joint is connected to the storage tank through a flange. When the manual valve on the top of the helium storage tank is opened, the helium gas is pressurized by the gas booster pump and reaches the transfer joint along the gas delivery pipe. As the gas pressure inside the first inner tube sleeve increases, the spring is compressed and retracted, and the rubber ball is pushed open. The helium gas enters the storage tank through the second inner tube sleeve. After the storage tank is filled with helium gas and pressurized to a certain pressure, the helium gas sensor detects each sealing position. When the storage tank is originally pressurized, the rubber ball is pressed by pressure at the opening of the second inner tube sleeve, which can prevent gas backflow and realize the function of front-end check and gas backflow prevention.

[0015] (2) By setting up a flange, an internal thread mounting seat, a first sealing ring, an external thread connecting pipe and a second sealing ring, when in use, the flange can be replaced according to the interface flange specifications of the storage tank. Select the flange of the corresponding specification, screw the external thread connecting pipe on the side of the flange along the internal thread mounting seat on the side of the transfer joint until the flange is pressed against the first sealing ring. The two sets of sealing rings, the inner and outer rings of the first sealing ring and the second sealing ring, can increase the sealing performance and realize the function of the flange being replaceable.

[0016] (3) By setting up an arc-shaped suction tube and a negative pressure fan, when using a helium sensor to detect each sealed position, the head end of the arc-shaped suction tube is aligned with the position to be detected. The negative pressure fan forms a negative pressure in the arc-shaped suction tube by suction, and the external air rushes in along the head end of the arc-shaped suction tube. The helium sensor is facing the air inlet position, which can contact the air to the maximum extent and realize the function of suction gas to assist detection. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is an enlarged front cross-sectional view of the transfer connector of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle section;

[0020] Figure 4 This is a front-view enlarged structural diagram of the transfer joint and flange of this utility model in their separated state.

[0021] In the diagram: 1. Bottom frame; 2. Helium storage tank; 3. Gas booster pump; 4. Inlet pipe; 5. Gas delivery pipe; 6. Transfer connector; 7. Manual regulating valve; 8. Pressure gauge; 9. First inner sleeve; 10. Second inner sleeve; 11. Spring; 12. Rubber ball; 13. Flange; 14. Internal thread mounting seat; 15. First sealing ring; 16. External thread connecting pipe; 17. Second sealing ring; 18. PLC controller; 19. Sensor wiring; 20. Sensor host; 21. Helium sensor; 22. Arc-shaped suction tube; 23. Negative pressure fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-4 A storage tank corrosion and sealing detection device includes a bottom frame 1, a helium storage tank 2 fixedly connected to the right side of the top of the bottom frame 1, a gas booster pump 3 installed on the left side of the top of the bottom frame 1, an air inlet pipe 4 movably connected between the helium storage tank 2 and the gas booster pump 3, a transfer joint 6 set above the bottom frame 1, a flange 13 set on the left side of the transfer joint 6, a manual regulating valve 7 installed on the right side of the transfer joint 6, an air supply pipe 5 movably connected between the gas booster pump 3 and the manual regulating valve 7, a pressure gauge 8 installed at the top of the transfer joint 6, a PLC controller 18 fixedly connected to the right side of the bottom frame 1, a sensor host 20 set on the right side of the PLC controller 18, a sensor wiring 19 movably connected between the PLC controller 18 and the sensor host 20, a helium sensor 21 fixedly connected to the left side of the top of the sensor host 20, and an anti-backflow component that can prevent gas from flowing back into the storage tank is set inside the transfer joint 6.

[0024] Please see Figure 1-4 A storage tank anti-corrosion sealing detection device also includes an anti-backflow component. The anti-backflow component includes a first inner sleeve 9, which is fixedly connected to the right side inside the transfer joint 6. A second inner sleeve 10 is fixedly connected to the left side inside the transfer joint 6. A spring 11 is welded to the right side of the second inner sleeve 10, and a rubber ball 12 is glued to the right side of the spring 11.

[0025] The inner diameters of the first inner sleeve 9 and the second inner sleeve 10 are the same. The horizontal center lines of the intermediate connector 6, the first inner sleeve 9, and the second inner sleeve 10 coincide. The bottom end of the pressure gauge 8 passes through the interior of the intermediate connector 6 and the first inner sleeve 9. There is a distance between the first inner sleeve 9 and the second inner sleeve 10. The outer diameter of the rubber ball 12 is larger than the inner diameter of the first inner sleeve 9. The rubber ball 12 is elastic and can prevent gas from flowing back into the storage tank.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, under the pressure of the gas booster pump 3, helium gas travels along the gas delivery pipe 5 to the transfer joint 6. As the internal pressure of the first inner sleeve 9 increases, the spring 11 is compressed and retracts, and the rubber ball 12 is pushed open. Helium gas then enters the storage tank through the second inner sleeve 10. After the storage tank is filled with helium gas and pressurized to a certain pressure, the helium gas sensor 21 detects each sealing position. When the storage tank is originally pressurized, the rubber ball 12 is pressed against the opening of the second inner sleeve 10 to prevent gas backflow.

[0027] An internal threaded mounting seat 14 is fixedly connected to the left side of the transfer connector 6. A first sealing ring 15 is glued to the left side of the internal threaded mounting seat 14. An external threaded connecting pipe 16 is welded to the right side of the flange 13. A second sealing ring 17 is glued to the right side of the external threaded connecting pipe 16. The helium sensor 21 passes through the arc-shaped suction pipe 22 and extends into it. The sensor host 20, the helium sensor 21, and the negative pressure fan 23 are electrically connected and are detected by suction.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, select the flange 13 of the corresponding specification, and screw the external threaded connecting pipe 16 on the side of the flange 13 into the internal threaded mounting seat 14 on the side of the transfer joint 6 until the flange 13 is pressed against the first sealing ring 15. The two sets of sealing rings, the first sealing ring 15 and the second sealing ring 17, can increase the sealing performance.

[0029] An arc-shaped suction tube 22 is fixedly connected to the right side of the top of the sensor host 20. A negative pressure fan 23 is installed on the right side of the arc-shaped suction tube 22. The external thread of the external threaded connecting pipe 16 matches the internal thread of the internal threaded mounting seat 14. The left side of the first sealing ring 15 fits tightly with the flange 13, making it easy to replace the flange.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, the head end of the arc-shaped suction tube 22 is aligned with the position to be detected. The negative pressure fan 23 creates negative pressure inside the arc-shaped suction tube 22 by suction, and external air rushes in along the head end of the arc-shaped suction tube 22. The helium sensor 21 is directly facing the air inlet position, so it can contact the air to the maximum extent.

[0031] Working principle: When using this utility model, firstly, the transfer connector 6 is connected to the storage tank via the flange 13. The manual valve on the top of the helium storage tank 2 is opened. Under the pressure of the gas booster pump 3, the helium gas reaches the transfer connector 6 along the gas delivery pipe 5. As the internal gas pressure of the first inner sleeve 9 increases, the spring 11 is compressed and retracts, and the rubber ball 12 is pushed open. The helium gas enters the storage tank through the second inner sleeve 10. After the storage tank is filled with helium gas and pressurized to a certain pressure, the helium sensor 21 detects each sealing position. When the storage tank is originally pressurized, the rubber ball 12 is pressed against the opening of the second inner sleeve 10, which can prevent gas backflow. According to the interface flange specifications of the storage tank, flange 13 can be replaced. Select the flange 13 of the corresponding specification, and screw the external threaded connecting pipe 16 on the side of flange 13 into the internal threaded mounting seat 14 on the side of the transfer joint 6 until flange 13 is tightly against the first sealing ring 15. The two sets of sealing rings, the first sealing ring 15 and the second sealing ring 17, can increase the sealing performance. When using helium sensor 21 to detect each sealing position, align the head end of the arc-shaped suction tube 22 with the position to be detected. The negative pressure fan 23 creates a negative pressure in the arc-shaped suction tube 22 by suction, and the outside air rushes in along the head end of the arc-shaped suction tube 22. The helium sensor 21 is directly facing the air inlet position to maximize contact with the air.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tank corrosion prevention and sealing detection device, comprising a bottom frame (1), characterized in that: A helium tank (2) is fixedly connected to the right side of the top of the bottom frame (1). A gas booster pump (3) is installed on the left side of the top of the bottom frame (1). An air inlet pipe (4) is movably connected between the helium tank (2) and the gas booster pump (3). A transfer joint (6) is set above the bottom frame (1). A flange (13) is set on the left side of the transfer joint (6). A manual regulating valve (7) is installed on the right side of the transfer joint (6). An air supply pipe (5) is movably connected between the gas booster pump (3) and the manual regulating valve (7). A pressure gauge (8) is installed at the top of the transfer joint (6). A PLC controller (18) is fixedly connected to the right side of the bottom frame (1). A sensor host (20) is set on the right side of the PLC controller (18). A sensor wiring harness (19) is movably connected between the PLC controller (18) and the sensor host (20). A helium sensor (21) is fixedly connected to the left side of the top of the sensor host (20). An internal thread mounting seat (14) is fixedly connected to the left side of the intermediate connector (6). A first sealing ring (15) is glued to the left side of the internal thread mounting seat (14). An external thread connecting pipe (16) is welded to the right side of the flange (13). A second sealing ring (17) is glued to the right side of the external thread connecting pipe (16). An arc-shaped suction pipe (22) is fixedly connected to the right side of the top of the sensor host (20). A negative pressure fan (23) is installed on the right side of the arc-shaped suction pipe (22). An anti-backflow component is provided inside the intermediate connector (6) to prevent backflow of gas inside the storage tank. The anti-backflow assembly includes a first inner sleeve (9), which is fixedly connected to the right side inside the transfer connector (6). A second inner sleeve (10) is fixedly connected to the left side inside the transfer connector (6). A spring (11) is welded to the right side of the second inner sleeve (10), and a rubber ball (12) is glued to the right side of the spring (11).

2. The tank corrosion prevention and sealing detection device according to claim 1, characterized in that: The inner diameters of the first inner sleeve (9) and the second inner sleeve (10) are the same, and the horizontal center lines of the adapter (6), the first inner sleeve (9), and the second inner sleeve (10) coincide.

3. The tank corrosion prevention and sealing detection device according to claim 1, characterized in that: The bottom end of the pressure gauge (8) passes through the interior of the intermediate connector (6) and the first inner sleeve (9), and there is a distance between the first inner sleeve (9) and the second inner sleeve (10).

4. The tank corrosion prevention and sealing detection device according to claim 1, characterized in that: The outer diameter of the rubber ball (12) is larger than the inner diameter of the first inner sleeve (9), and the rubber ball (12) is elastic.

5. The anti-corrosion and sealing detection device for storage tanks according to claim 1, characterized in that: The external thread of the external threaded connecting pipe (16) matches the internal thread of the internal threaded mounting seat (14), and the left side of the first sealing ring (15) fits tightly against the flange (13).

6. The anti-corrosion and sealing detection device for storage tanks according to claim 1, characterized in that: The helium sensor (21) passes through the arc-shaped suction tube (22) and extends into the interior. The sensor host (20), the helium sensor (21), and the negative pressure fan (23) are electrically connected.

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