Pressure vessel inspection and detection equipment convenient to maintain
By treating the air with activated carbon plates and dust baffles, combined with air injection bladders and limiting mechanisms, the problem of tank corrosion caused by air and water molecules in pressure vessel inspection and testing equipment has been solved, achieving convenient maintenance and ensuring sealing.
Patent Information
- Application Number
- CN202423264541.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Under high-pressure conditions, existing pressure vessel inspection and testing equipment causes water molecules in the outside air to condense into water droplets, leading to tank corrosion and inconvenient maintenance.
The system uses activated carbon plates and dust baffles to treat the air, and ensures airtightness through air-filled airbags and limiting mechanisms. It also facilitates the replacement of activated carbon plates and dust baffles, and the brake wheel fixing device enables convenient maintenance.
It effectively removes water molecules from the air, prevents tank corrosion, simplifies equipment maintenance, and improves equipment stability and safety.
Smart Images

Figure CN223551266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pressure vessel testing equipment, and in particular to a pressure vessel inspection and testing equipment that is easy to maintain. Background Technology
[0002] In the petroleum industry, pressure vessels are widely used in the storage, transportation, and processing of oil. Pressure vessels are crucial in the petroleum industry, and under the high-pressure conditions they operate in, even a small leak can cause the escape of high-pressure gas or liquid, leading to a rapid drop in pressure. This can affect the stable transmission and processing of oil, and even cause equipment failure. Therefore, airtightness testing is extremely necessary to detect potential leaks early and ensure safe production.
[0003] In Chinese utility model patents, such as CN221549959U, this utility model discloses a pressure vessel testing device for easy maintenance. It can filter external impurities without affecting its ventilation, and at the same time, it can prevent external impurities from entering the drive device and accelerating the aging of the drive device, which facilitates the maintenance of the device. In addition, the folding cover can achieve the protection function of the device when it is not in use, and the slot and the plug can achieve the effect of fixing the position of the device, thereby improving the stability of the device during operation.
[0004] However, when the above technology is used, the outside air is filtered of impurities and then directly enters the tank. If the outside air carries a lot of water molecules, the water will condense into water droplets after the compressed air enters the tank and adhere to the tank wall, causing corrosion of the tank. In view of this, this application proposes a pressure vessel inspection and testing device that is easy to maintain. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure vessel inspection and testing device that is easy to maintain.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A pressure vessel inspection and testing device that is easy to maintain includes a base, a pressure detection device fixedly installed on the top surface of the base, a processing box installed inside the base, the pressure detection device being connected to the processing box via an air inlet pipe, an air inlet installed on the outer side of the base and connected to the processing box, multiple first slide rails and multiple second slide rails respectively installed between the top and bottom walls of the processing box, a dust baffle is slidably connected to every two corresponding first slide rails, and an activated carbon plate is slidably connected to every two corresponding second slide rails, a baffle is fixedly installed on the outer side of the processing box, a cover plate is clamped onto the baffle, and a leak-proof mechanism is provided on the cover plate.
[0008] Preferably, the leak-proof mechanism includes a fixed cylinder, which is fixedly installed on the outside of the cover plate. An air-injection bladder is installed on the bottom wall of the cover plate. A pressure plate is slidably connected inside the fixed cylinder. The fixed cylinder drives the pressure plate to slide through a driving mechanism, and the pressure plate abuts against the air-injection bladder. A filling bladder is installed on the outside of the cover plate. The filling bladder is connected to the air-injection bladder through multiple connecting pipes. A limiting mechanism is provided on the outside of the fixed cylinder, and the limiting mechanism is locked inside the retaining edge.
[0009] Preferably, the limiting mechanism includes multiple telescopic tubes, which are fixed and connected to the outside of the fixed cylinder. Each telescopic tube is connected to the inflation airbag. A piston is slidably connected inside each telescopic tube. An extension rod is fixedly installed on the outside of each piston, and each extension rod is locked inside the stop.
[0010] Preferably, the driving mechanism includes a threaded rod, which is threadedly connected to the top surface of the fixed cylinder, and the bottom end of the threaded rod is slidably connected to the top surface of the pressure plate. A knob is installed at the top end of the threaded rod.
[0011] Preferably, the retaining edge has multiple symmetrically arranged insertion holes, and each extension rod is engaged in the corresponding insertion hole.
[0012] Preferably, the bottom surface of the base is symmetrically equipped with multiple brake wheels.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model achieves the function of extracting outside air through devices such as activated carbon plates and dust baffles. The activated carbon plates and dust baffles process the air, reducing the dust and impurities in the air and drying the air, thereby maintaining the quality of the air entering the tank and preventing water molecules in the air from causing corrosion damage to the tank.
[0015] 2. This utility model, through devices such as an air-injection bladder, a filling bladder, an extension rod, and a telescopic tube, enables operators to easily expand the air-injection bladder by sliding the pressure plate, filling the gap between the baffle and the cover plate to maintain the airtightness of the treatment box. At the same time, the piston moves the extension rod outward to limit the cover plate, making it easy for operators to open and close the cover plate, thereby facilitating the replacement and maintenance of the activated carbon plate and dust baffle. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of a pressure vessel inspection and testing equipment that is easy to maintain, as proposed in this utility model.
[0017] Figure 2 This is a cross-sectional view of the processing box structure of a pressure vessel inspection and testing equipment that is easy to maintain, as proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the flange insertion hole structure of a pressure vessel inspection and testing equipment that is easy to maintain, as proposed in this utility model.
[0019] Figure 4 This is a cross-sectional view of the fixed cylinder structure of a pressure vessel inspection and testing equipment that is easy to maintain, as proposed in this utility model.
[0020] In the diagram: 1. Base; 2. Air pressure detection device; 3. Brake wheel; 4. Air inlet; 5. Cover plate; 6. Processing box; 7. First slide rail; 8. Dust baffle; 9. Second slide rail; 10. Activated carbon plate; 11. Air inlet pipe; 12. Edge baffle; 13. Insertion hole; 14. Filling airbag; 15. Fixing cylinder; 16. Threaded rod; 17. Knob; 18. Telescopic tube; 19. Extension rod; 20. Piston; 21. Connecting tube; 22. Pressure plate; 23. Inflation airbag. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] This utility model provides a technical solution: such as Figure 1-4As shown, a pressure vessel inspection and testing device that is easy to maintain includes a base 1. A pressure testing device 2 is fixedly installed on the top surface of the base 1. A processing box 6 is installed inside the base 1. The pressure testing device 2 is connected to the processing box 6 through an air inlet pipe 11. An air inlet 4 is installed on the outside of the base 1 and is connected to the processing box 6. Multiple first slide rails 7 and multiple second slide rails 9 are respectively installed between the top and bottom walls of the processing box 6. A dust baffle 8 is slidably connected to each pair of corresponding first slide rails 7. An activated carbon plate 10 is slidably connected to each pair of corresponding second slide rails 9. A baffle 12 is fixedly installed on the outside of the processing box 6. A cover plate 5 is clamped on the baffle 12. An anti-leakage mechanism is provided on the cover plate 5.
[0023] It should be noted that the activated carbon plate 10 and the dust baffle 8 can be easily installed and removed via the first slide rail 7 and the second slide rail 9, thus facilitating the maintenance of the device by the operator.
[0024] Furthermore, the leak prevention mechanism includes a fixed cylinder 15, which is fixedly installed on the outside of the cover plate 5. An air-filling bladder 23 is installed on the bottom wall of the cover plate 5. A pressure plate 22 is slidably connected inside the fixed cylinder 15. The fixed cylinder 15 drives the pressure plate 22 to slide through a drive mechanism, and the pressure plate 22 abuts against the air-filling bladder 23. A filling bladder 14 is installed on the outside of the cover plate 5. The filling bladder 14 is connected to the air-filling bladder 23 through multiple connecting pipes 21. A limiting mechanism is provided on the outside of the fixed cylinder 15, and the limiting mechanism is locked in the baffle 12. By squeezing the air-filling bladder 23 through the pressure plate 22, the air inside the air-filling bladder 23 can be squeezed into the filling bladder 14, thereby causing the filling bladder 14 to expand and fill between the baffle 12 and the cover plate 5, thereby achieving the sealing of the treatment box 6.
[0025] Furthermore, the limiting mechanism includes multiple telescopic tubes 18, which are fixed and connected to the outside of the fixed cylinder 15. Each telescopic tube 18 is connected to the air-filled bladder 23. A piston 20 is slidably connected inside each telescopic tube 18. An extension rod 19 is fixedly installed on the outside of each piston 20. Each extension rod 19 is locked inside the baffle 12. The extension rod 19 can be driven to slide outward by the sliding of the piston 20, thereby locking it inside the baffle 12 and realizing the locking and fixing of the cover plate 5.
[0026] Furthermore, the drive mechanism includes a threaded rod 16, which is threadedly connected to the top surface of the fixed cylinder 15, and the bottom end of the threaded rod 16 is slidably connected to the top surface of the pressure plate 22. A knob 17 is installed at the top of the threaded rod 16. The operator rotates the knob 17 to drive the threaded rod 16 to rotate. At the same time, the thread has self-locking properties, so when the threaded rod 16 stops rotating, the position of the pressure plate 22 is fixed.
[0027] Furthermore, multiple insertion holes 13 are symmetrically provided on the retaining edge 12, and each extension rod 19 is locked in the corresponding insertion hole 13.
[0028] Furthermore, multiple brake wheels 3 are symmetrically installed on the bottom surface of the base 1. The brake wheels 3 have a built-in braking function, which facilitates the fixation of the device.
[0029] This utility model provides a pressure vessel inspection and testing device that is easy to maintain. The specific working principle is as follows: First, the device is moved to a designated location by multiple brake wheels 3. Then, the output end of the air pressure detection device 2 is connected to the tank. Next, by activating the air pressure detection device 2, outside air can be drawn in from the air inlet 4 and enter the processing box 6. The air then passes through multiple dust baffles 8 and multiple activated carbon plates 10 in sequence. The dust baffles 8 reduce impurities and dust in the air, while the activated carbon plates 10 reduce the water molecules in the air. The treated air then enters the air pressure detection device 2 through the air inlet pipe 11 and is transported into the tank by the air pressure detection device 2 for airtightness testing.
[0030] Simultaneously, when it is necessary to replace the dust baffle 8 or activated carbon plate 10, the knob 17 can be turned outward to rotate the threaded rod 16, thereby causing the threaded rod 16 to slide outward and drive the pressure plate 22 to slide outward. Then, the air-filled bladder 23 expands under its own elasticity, thereby drawing out the air from the telescopic tube 18 and the filling bladder 14. This causes the piston 20 to pull the extension rod 19 to slide into the telescopic tube 18, thereby releasing the extension rod 19 from limiting the cover plate 5, allowing the cover plate 5 to be removed. Then, the dust baffle 8 or the second slide rail 9 can be directly slid to remove and replace it. After the replacement is completed, the threaded rod 16 is rotated in the opposite direction to cause the filling bladder 14 to expand and fill the gap between the baffle 12 and the cover plate 5, thereby ensuring the sealing performance of the treatment box 6. At the same time, the piston 20 pushes the extension rod 19 to slide outward, thereby limiting the cover plate 5.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pressure vessel inspection and testing device that is easy to maintain, comprising a base (1), characterized in that, A pressure detection device (2) is fixedly installed on the top surface of the base (1). A processing box (6) is installed inside the base (1). The pressure detection device (2) is connected to the processing box (6) through an air inlet pipe (11). An air inlet (4) is installed on the outside of the base (1) and is connected to the processing box (6). Multiple first slide rails (7) and multiple second slide rails (9) are installed between the top and bottom walls of the processing box (6). A dust baffle (8) is slidably connected to each pair of first slide rails (7) at each position. An activated carbon plate (10) is slidably connected to each pair of second slide rails (9). A baffle (12) is fixedly installed on the outside of the processing box (6). A cover plate (5) is clamped on the baffle (12). An anti-leakage mechanism is provided on the cover plate (5).
2. The pressure vessel inspection and testing equipment that is easy to maintain according to claim 1, characterized in that, The leak prevention mechanism includes a fixed cylinder (15), which is fixedly installed on the outside of the cover plate (5). An air-filling bladder (23) is installed on the bottom wall of the cover plate (5). A pressure plate (22) is slidably connected inside the fixed cylinder (15). The fixed cylinder (15) drives the pressure plate (22) to slide through a driving mechanism, and the pressure plate (22) abuts against the air-filling bladder (23). A filling bladder (14) is installed on the outside of the cover plate (5). The filling bladder (14) is connected to the air-filling bladder (23) through multiple connecting pipes (21). A limiting mechanism is provided on the outside of the fixed cylinder (15), and the limiting mechanism is locked inside the retaining edge (12).
3. The pressure vessel inspection and testing equipment that is easy to maintain according to claim 2, characterized in that, The limiting mechanism includes multiple telescopic tubes (18), and the telescopic tubes (18) are fixed and connected to the outside of the fixed cylinder (15). Each telescopic tube (18) is connected to the air-filled airbag (23). A piston (20) is slidably connected inside each telescopic tube (18). An extension rod (19) is fixedly installed on the outside of each piston (20), and each extension rod (19) is locked inside the stop (12).
4. The pressure vessel inspection and testing equipment that is easy to maintain according to claim 3, characterized in that, The drive mechanism includes a threaded rod (16), which is threadedly connected to the top surface of the fixed cylinder (15), and the bottom end of the threaded rod (16) is slidably connected to the top surface of the pressure plate (22). A knob (17) is installed at the top end of the threaded rod (16).
5. The pressure vessel inspection and testing equipment that is easy to maintain according to claim 4, characterized in that, Multiple insertion holes (13) are symmetrically opened on the baffle (12), and each extension rod (19) is locked in the corresponding insertion hole (13).
6. The pressure vessel inspection and testing equipment that is easy to maintain according to claim 1, characterized in that, Multiple brake wheels (3) are symmetrically mounted on the bottom surface of the base (1).
Citation Information
Patent Citations
Pressure vessel detection equipment convenient to maintain and used for pressure vessel inspection and detection
CN221549959U