Device for testing corrosion resistance of anticorrosive material of liquid storage tank

Abstract

The utility model discloses a device for testing the corrosion resistance of an anticorrosive material of a liquid storage tank, which relates to the technical field of testing devices and comprises a bottom bearing table, the right side of the top of the bottom bearing table is fixedly connected with an electric cylinder supporting table, and the bottom end of a solution cylinder is provided with a pressurizing assembly capable of simulating the pressure of a storage tank. According to the device for testing the corrosion resistance of the anticorrosive material of the liquid storage tank, by arranging a first electric cylinder, a push plate, a solution barrel, an acid-resistant pump, a solution conveying pipe, an air supply pipe, a pressurizing air pump and a wire, when the device is used, the acid-resistant pump pumps a corrosive solution into the solution barrel through the solution conveying pipe and a first one-way valve; a pressurizing air pump pumps air into the solution cylinder through an air supply pipe and a second one-way valve, the internal pressure is increased, one side of the anti-corrosion material plate is in a high-pressure state, the function of simulating the environment in the tank through internal pressurization is achieved, and the problem that the device does not have the function of simulating the environment in the tank through internal pressurization is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a device for testing the corrosion resistance of anti-corrosion materials of liquid storage tanks. Background Art

[0002] Storage tanks are a common storage equipment for chemical liquid raw materials. Chemical liquid raw materials are mostly corrosive. Storage tanks usually use anti-corrosion materials as the main material or inner wall material to avoid corrosion and leakage during storage.

[0003] Currently, there are two main types of equipment on the market for testing the corrosion resistance of anti-corrosion materials. One is a spray device, which tests the corrosion resistance of the material by spraying salt mist or corrosive solution. The other is an immersion device, which immerses the material in a solution for corrosion resistance testing. In actual use, there are some functional deficiencies and there is room for improvement. For example, neither immersion equipment nor spray equipment can simulate the pressurized state of a storage tank. When a storage tank stores chemical liquid raw materials, the interior is usually under high pressure. High pressure can accelerate the corrosion of the solution on the inner wall of the tank, and it does not have the function of internal pressurization to simulate the environment inside the tank.

[0004] Now, a new type of corrosion resistance testing device for liquid storage tank anti-corrosion materials is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for testing the corrosion resistance of anti-corrosion materials of liquid storage tanks, so as to solve the problem in the above background technology that the device does not have the function of internal pressurization to simulate the environment inside the tank.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the corrosion resistance of anti-corrosion materials of liquid storage tanks, comprising a bottom bearing platform, an electric cylinder support platform is fixedly connected to the right side of the top of the bottom bearing platform, two groups of first electric cylinders are installed on the top of the electric cylinder support platform, a push plate is provided on the left side of the first electric cylinder, a solution cylinder is fixedly connected to the left side of the top of the bottom bearing platform, a controller is installed on the right side inside the bottom bearing platform, and a pressurizing component that can simulate the tank pressure is provided at the bottom end of the solution cylinder.

[0007] The pressurizing component includes a pressure sensor, which is arranged on the right side of the bottom of the solution cylinder, a solenoid valve is arranged on the left side of the pressure sensor, a sealing ring is glued on the right side of the solution cylinder, a second one-way valve is fixedly connected to the right side of the top of the solution cylinder, a first one-way valve is arranged on the left side of the second one-way valve, a sewage pipe is installed at the bottom end of the solenoid valve, an acid-resistant pump is installed on the left side of the bottom end of the bottom supporting platform, a solution delivery pipe is arranged between the acid-resistant pump and the first one-way valve, a booster air pump is arranged on the right side of the acid-resistant pump, an air supply pipe is arranged between the booster air pump and the second one-way valve, and a wire is arranged between the pressure sensor and the controller.

[0008] Preferably, the sealing ring is elastic, and the inner diameter of the sealing ring is larger than the inner diameter of the solution cylinder.

[0009] Preferably, the interiors of the solution cylinder, the first one-way valve, the second one-way valve, and the solenoid valve are connected, and the top end of the pressure sensor passes through the bottom end of the solution cylinder and extends into the interior.

[0010] Preferably, the horizontal center lines of the push plate and the solution cylinder coincide with each other, and the pressure sensor, the wire, and the controller are electrically connected.

[0011] Preferably, the four corners on the right side of the push plate are fixedly connected with sliding sleeves, and the internal part of the sliding sleeves is laterally inserted with a limiting sliding rod. The middle positions of the upper and lower ends of the right side of the push plate are fixedly connected with internal threaded sleeves, and the internal part of the internal threaded sleeves is laterally inserted with an external threaded adjusting rod. Two groups of side limit plates are provided on the left side of the push plate, and an end limit plate is welded to the right side of the side limit plate.

[0012] Preferably, a handwheel is fixed on the right side of the external threaded adjustment rod, the left side of the external threaded adjustment rod is movably connected to the side limit plate, the left side of the limit slide rod is fixedly connected to the side limit plate, and the front and rear ends of the side limit plate and the end limit plate are respectively flush with the front and rear ends of the push plate.

[0013] Preferably, a second electric cylinder is installed on the left side of the solution cylinder, a piston head is provided on the right side of the second electric cylinder, an anti-fouling ring is sleeved on the left side of the outside of the piston head, and an anti-wear ring is provided on the right side of the anti-fouling ring.

[0014] Preferably, the outer diameter of the piston head is adapted to the inner diameter of the solution cylinder, and the piston head can be displaced left and right along the interior of the solution cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the corrosion resistance test device for liquid storage tank anti-corrosion materials not only realizes the function of internal pressurization to simulate the environment inside the tank, but also realizes the function of adjustable clamping thickness and rapid pressure relief;

[0016] (1) A first electric cylinder, a push plate, a solution cylinder, a sealing ring, a first one-way valve, a second one-way valve, a pressure sensor, a solenoid valve, a drain pipe, an acid-resistant pump, a solution delivery pipe, an air supply pipe, a booster air pump and a wire are provided. When in use, the anti-corrosion material plate to be tested is fixed on the left side of the push plate, and then the first electric cylinder is started. The first electric cylinder pushes the push plate close to the solution cylinder until the right side of the solution cylinder and the anti-corrosion material plate are completely pressed against each other, and the sealing ring increases the sealing performance of the contact surface. Then the acid-resistant pump pumps the corrosive solution into the solution cylinder through the solution delivery pipe and the first one-way valve. As the solution cylinder is filled with solution, the booster air pump pumps air into the solution cylinder through the air supply pipe and the second one-way valve to increase the internal pressure, so that one side of the anti-corrosion material plate is in a high-pressure state, simulating the internal environment of the storage tank. After maintaining for a certain period, the solution inside the solution cylinder is discharged through the solenoid valve and the drain pipe. The plate is removed to observe the corrosion state. The pressure sensor can sense the internal pressure and feedback the pressure information in real time, realizing the function of internal pressurization simulation of the tank environment;

[0017] (2) By providing a sliding sleeve, a limiting slide rod, an internal thread sleeve, an external thread adjustment rod, a side limiting plate and an end limiting plate, when in use, when fixing the plate, the distance between the side limiting plate and the push plate can be adjusted according to the thickness of the plate, and the hand wheel on the right side of the external thread adjustment rod is turned, and the external thread adjustment rod is rotated, driving the side limiting plate and the end limiting plate to move left and right. The sliding sleeve and the limiting slide rod can make the left and right sliding smoother and more stable. The side limiting plate and the end limiting plate can be used as limiting parts to clamp the anti-corrosion material plate, thereby realizing the function of adjustable clamping thickness;

[0018] (3) By providing a second electric cylinder, a piston head, an anti-wear ring and an anti-fouling ring, when injecting the solution, the second electric cylinder drives the piston head to move left synchronously for a distance to keep the pressure stable. It can also simulate a negative pressure state during the test. The anti-wear ring and the anti-fouling ring can enhance the strength and wear resistance of the piston head. When the test is completed and the solution needs to be discharged, the second electric cylinder drives the piston head to move left again, so that the pressure inside the solution cylinder drops rapidly, preventing the solution from gushing out at high speed when the sewage pipe is discharged, thereby realizing the function of rapid pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural diagram of the utility model;

[0020] Figure 2 This is an enlarged structural diagram of a front cross-section of the solution cartridge of the present invention;

[0021] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0022] Figure 4It is a schematic diagram of the enlarged side view of the push plate of the utility model.

[0023] In the figure: 1. Bottom bearing platform; 2. Electric cylinder support platform; 3. First electric cylinder; 4. Push plate; 5. Solution cylinder; 6. Sealing ring; 7. First one-way valve; 8. Second one-way valve; 9. Pressure sensor; 10. Solenoid valve; 11. Drain pipe; 12. Acid-resistant pump; 13. Solution delivery pipe; 14. Air delivery pipe; 15. Booster air pump; 16. Wire; 17. Sliding sleeve; 18. Limiting slide rod; 19. Internally threaded sleeve; 20. Externally threaded adjusting rod; 21. Side limit plate; 22. End limit plate; 23. Second electric cylinder; 24. Piston head; 25. Anti-wear ring; 26. Anti-fouling ring; 27. Controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 A device for testing the corrosion resistance of anti-corrosion materials for liquid storage tanks comprises a bottom bearing platform 1, an electric cylinder support platform 2 is fixedly connected to the right side of the top of the bottom bearing platform 1, two groups of first electric cylinders 3 are installed on the top of the electric cylinder support platform 2, a push plate 4 is provided on the left side of the first electric cylinder 3, a solution cylinder 5 is fixedly connected to the left side of the top of the bottom bearing platform 1, a controller 27 is installed on the right side of the inside of the bottom bearing platform 1, and a pressurizing component that can simulate the tank pressure is provided at the bottom end of the solution cylinder 5;

[0026] See also Figure 1-4 , a device for testing the corrosion resistance of anti-corrosion materials of liquid storage tanks also includes a pressurizing component, which includes a pressure sensor 9. The pressure sensor 9 is arranged on the right side of the bottom of the solution cylinder 5, and a solenoid valve 10 is arranged on the left side of the pressure sensor 9. A sealing ring 6 is glued to the right side of the solution cylinder 5. A second one-way valve 8 is fixedly connected to the right side of the top of the solution cylinder 5. A first one-way valve 7 is arranged on the left side of the second one-way valve 8. A drain pipe 11 is installed at the bottom end of the solenoid valve 10, and an acid-resistant pump 12 is installed on the left side of the bottom end of the bottom supporting platform 1. A solution delivery pipe 13 is arranged between the acid-resistant pump 12 and the first one-way valve 7. A booster air pump 15 is arranged on the right side of the acid-resistant pump 12, and an air delivery pipe 14 is arranged between the booster air pump 15 and the second one-way valve 8. A wire 16 is arranged between the pressure sensor 9 and the controller 27;

[0027] The sealing ring 6 is elastic, and the inner diameter of the sealing ring 6 is larger than the inner diameter of the solution cylinder 5. The interiors of the solution cylinder 5, the first one-way valve 7, the second one-way valve 8, and the solenoid valve 10 are connected. The top end of the pressure sensor 9 passes through the bottom end of the solution cylinder 5 and extends into the interior. The horizontal center lines of the push plate 4 and the solution cylinder 5 coincide with each other. The pressure sensor 9, the wire 16, and the controller 27 are electrically connected, which can simulate the high-pressure state inside the storage tank.

[0028] Specifically, if Figure 1 and Figure 2 As shown, the first electric cylinder 3 pushes the push plate 4 close to the solution cylinder 5 until the right side of the solution cylinder 5 and the anti-corrosion material plate are completely pressed against each other, and the sealing ring 6 increases the sealing performance of the contact surface. Then the acid-resistant pump 12 pumps the corrosive solution into the solution cylinder 5 through the solution delivery pipe 13 and the first one-way valve 7. As the solution cylinder 5 is filled with solution, the booster air pump 15 pumps air into the solution cylinder 5 through the air delivery pipe 14 and the second one-way valve 8 to increase the internal pressure, so that one side of the anti-corrosion material plate is in a high-pressure state, simulating the internal environment of the storage tank. After maintaining a certain period, the solution inside the solution cylinder 5 is discharged through the solenoid valve 10 and the drain pipe 11. The plate is removed to observe the corrosion state. The pressure sensor 9 can sense the internal pressure and feedback the pressure information in real time.

[0029] Embodiment 2: The four corners on the right side of the push plate 4 are fixedly connected with a sliding sleeve 17, and the internal transverse insertion of the sliding sleeve 17 is a limit slide bar 18. The middle positions of the upper and lower ends of the right side of the push plate 4 are fixedly connected with an internal threaded sleeve 19, and the internal transverse insertion of the internal threaded sleeve 19 is an external threaded adjustment rod 20. Two groups of side limit plates 21 are provided on the left side of the push plate 4, and the end limit plates 22 are welded to the right side of the side limit plates 21. A handwheel is fixed to the right side of the external threaded adjustment rod 20. The left side of the external threaded adjustment rod 20 is movably connected to the side limit plates 21, and the left side of the limit slide bar 18 is fixedly connected to the side limit plates 21. The front and rear ends of the side limit plates 21 and the end limit plates 22 are flush with the front and rear ends of the push plate 4, respectively, and can clamp anti-corrosion material plates of different thicknesses;

[0030] Specifically, if Figure 3 and Figure 4 As shown, by turning the handwheel on the right side of the external threaded adjustment rod 20, the external threaded adjustment rod 20 rotates, driving the side limit plate 21 and the end limit plate 22 to move left and right. The sliding sleeve 17 and the limit slide rod 18 can make the left and right sliding smoother and more stable. The side limit plate 21 and the end limit plate 22 serve as limit parts to clamp the anti-corrosion material plate.

[0031] Example 3: A second electric cylinder 23 is installed on the left side of the solution cylinder 5, and a piston head 24 is provided on the right side of the second electric cylinder 23. An anti-fouling ring 26 is sleeved on the left side of the outside of the piston head 24, and an anti-wear ring 25 is provided on the right side of the anti-fouling ring 26. The outer diameter of the piston head 24 is adapted to the inner diameter of the solution cylinder 5. The piston head 24 can be displaced left and right along the inside of the solution cylinder 5, which can quickly relieve pressure and simulate a negative pressure state.

[0032] Specifically, if Figure 1 and Figure 2 As shown, the anti-wear ring 25 and the anti-fouling ring 26 can enhance the strength and wear resistance of the piston head 24. When the test is completed and the solution needs to be discharged, the second electric cylinder 23 drives the piston head 24 to move left again, so that the internal pressure of the solution cylinder 5 drops rapidly, preventing the solution from gushing out of the sewage pipe 11 at high speed when discharging sewage.

[0033] Working principle: When the present invention is in use, first, the anti-corrosion material plate to be tested is fixed on the left side of the push plate 4, and then the first electric cylinder 3 is started. The first electric cylinder 3 pushes the push plate 4 close to the solution cylinder 5 until the right side of the solution cylinder 5 and the anti-corrosion material plate are completely pressed against each other, and the sealing ring 6 increases the sealing performance of the contact surface. Then the acid-resistant pump 12 pumps the corrosive solution into the solution cylinder 5 through the solution delivery pipe 13 and the first one-way valve 7. As the solution cylinder 5 is filled with solution, the booster air pump 15 pumps air into the solution cylinder 5 through the air delivery pipe 14 and the second one-way valve 8 to increase the internal pressure, so that one side of the anti-corrosion material plate is in a high-pressure state, simulating the internal environment of the storage tank. After maintaining a certain period, the solution inside the solution cylinder 5 is discharged through the solenoid valve 10 and the drain pipe 11. The plate is removed to observe the corrosion state. The pressure sensor 9 can sense the internal pressure and feedback the pressure information in real time. When fixing the plate, the distance between the side limit plate 21 and the push plate 4 can be adjusted according to the thickness of the plate. The handwheel on the right side of the external thread adjustment rod 20 is turned, and the external thread adjustment rod 20 rotates, driving the side limit plate 21 and the end limit plate 22 to move left and right. The sliding sleeve 17 and the limit slide 18 can make the left and right sliding more smooth and stable. The side limit plate 21 and the end limit plate 22 act as limiters to clamp the anti-corrosion material plate. When injecting the solution, the second electric cylinder 23 drives the piston head 24 to move left a distance synchronously to keep the pressure stable. It can also simulate a negative pressure state during testing. The anti-wear ring 25 and the anti-fouling ring 26 can enhance the strength and wear resistance of the piston head 24. When the test is completed and the solution needs to be discharged, the second electric cylinder 23 drives the piston head 24 to move left again, causing the internal pressure of the solution cylinder 5 to drop rapidly, preventing the solution from gushing out at high speed when the sewage pipe 11 is discharged.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for testing the corrosion resistance of liquid storage tank anti-corrosion materials, comprising a bottom bearing platform (1), characterized in that: The right side of the top of the bottom bearing platform (1) is fixedly connected to an electric cylinder support platform (2), the top of the electric cylinder support platform (2) is equipped with two groups of first electric cylinders (3), the left side of the first electric cylinder (3) is provided with a push plate (4), the left side of the top of the bottom bearing platform (1) is fixedly connected to a solution cylinder (5), the right side of the inside of the bottom bearing platform (1) is equipped with a controller (27), and the bottom end of the solution cylinder (5) is provided with a pressurizing component that can simulate the pressure of the storage tank; The pressurizing component includes a pressure sensor (9), which is arranged on the right side of the bottom of the solution cylinder (5), a solenoid valve (10) is arranged on the left side of the pressure sensor (9), a sealing ring (6) is glued on the right side of the solution cylinder (5), a second one-way valve (8) is fixedly connected to the right side of the top of the solution cylinder (5), a first one-way valve (7) is arranged on the left side of the second one-way valve (8), a sewage pipe (11) is installed at the bottom end of the solenoid valve (10), an acid-resistant pump (12) is installed on the left side of the bottom end of the bottom supporting platform (1), a solution delivery pipe (13) is arranged between the acid-resistant pump (12) and the first one-way valve (7), a booster air pump (15) is arranged on the right side of the acid-resistant pump (12), an air delivery pipe (14) is arranged between the booster air pump (15) and the second one-way valve (8), and a wire (16) is arranged between the pressure sensor (9) and the controller (27).

2. A device for testing the corrosion resistance of liquid storage tank anti-corrosion materials according to claim 1, characterized in that: The sealing ring (6) has elasticity, and the inner diameter of the sealing ring (6) is larger than the inner diameter of the solution cylinder (5).

3. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 1, characterized in that: The interiors of the solution cylinder (5), the first one-way valve (7), the second one-way valve (8), and the electromagnetic valve (10) are connected, and the top end of the pressure sensor (9) passes through the bottom end of the solution cylinder (5) and extends into the interior.

4. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 1, characterized in that: The horizontal center lines of the push plate (4) and the solution cylinder (5) coincide with each other, and the pressure sensor (9), the wire (16), and the controller (27) are electrically connected.

5. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 1, characterized in that: The four corners on the right side of the push plate (4) are fixedly connected with sliding sleeves (17), and the interior of the sliding sleeves (17) is laterally plugged with a limiting sliding rod (18). The middle positions of the upper and lower ends of the right side of the push plate (4) are fixedly connected with internal threaded sleeves (19), and the interior of the internal threaded sleeves (19) is laterally plugged with an external threaded adjustment rod (20). Two groups of side limit plates (21) are provided on the left side of the push plate (4), and an end limit plate (22) is welded to the right side of the side limit plate (21).

6. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 5, characterized in that: A hand wheel is fixed on the right side of the external thread adjustment rod (20), the left side of the external thread adjustment rod (20) is movably connected to the side limit plate (21), the left side of the limit slide rod (18) is fixedly connected to the side limit plate (21), and the front and rear ends of the side limit plate (21) and the end limit plate (22) are respectively flush with the front and rear ends of the push plate (4).

7. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 1, characterized in that: A second electric cylinder (23) is installed on the left side of the solution cylinder (5), a piston head (24) is provided on the right side of the second electric cylinder (23), an anti-fouling ring (26) is sleeved on the left side of the outside of the piston head (24), and an anti-wear ring (25) is provided on the right side of the anti-fouling ring (26).

8. The corrosion resistance testing device for liquid storage tank anti-corrosion materials according to claim 7, characterized in that: The outer diameter of the piston head (24) is adapted to the inner diameter of the solution cylinder (5), and the piston head (24) can be displaced left and right along the interior of the solution cylinder (5).

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