Quick replacement device for condensate pump inlet filter screen
Through the design of hydraulic cylinder and elastic steel sheet, the problem of difficulty in removing the filter during the inlet filter replacement of the condensing pump is solved, and the rapid and convenient filter replacement is achieved, which improves the replacement efficiency and equipment maintenance efficiency.
Patent Information
- Application Number
- CN202421718052.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-07-19
AI Technical Summary
During the replacement of the existing condensing pump inlet filter, the filter screen and the filter cartridge have a strong adhesion force, making it difficult to remove it quickly and easily, and may damage the filter.
The structure of hydraulic cylinder and elastic steel sheet is adopted, and the elastic steel sheet is squeezed with hydraulic oil to close to the end ring of the filter screen, and the filter screen is raised through hydraulic pressure to avoid damage and achieve rapid replacement.
It realizes fast and convenient replacement of the filter, improves maintenance and replacement efficiency, and avoids damage to the filter.
Smart Images
Figure CN223289717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a quick replacement device for a condensate pump inlet filter screen, belonging to the technical field of condensate pump inlet filter screen repair equipment in the metallurgical industry. Background Art
[0002] Condensate pump inlet strainers are used at the inlet of the condensate pump in the condensing tower of a thermal power generation steam boiler to remove impurities from the medium and protect the normal operation of the equipment and valves. During use, the fluid enters the filter cartridge with a certain size of filter screen, impurities are blocked, and the clean filtrate is discharged from the filter outlet.
[0003] The condensate pump inlet filter needs to be replaced after a period of use. The current process for replacing the condensate pump inlet filter is to first remove and open the filter cartridge's sealing cover, then use a hook to remove the filter from the cartridge. When the filter has been used for a long time, the sealing cover presses the filter's end ring tightly into the cartridge's ring groove. The strong adhesion between the filter's end ring and the cartridge makes it difficult to remove with the hook, potentially damaging the filter. Therefore, how to quickly and conveniently remove the filter from the cartridge for replacement is a pressing technical challenge. Utility Model Content
[0004] The purpose of the utility model is to provide a condensate pump inlet filter screen quick replacement device, which can quickly and conveniently remove the filter screen, improve the maintenance and replacement efficiency, and solve the problems existing in the background technology.
[0005] The technical solution of the utility model is:
[0006] A quick-replacement device for a condensate pump inlet filter screen comprises a hanging frame, a hydraulic cylinder 1, a hydraulic cylinder 2, a threaded rod, a sealing pressure plate 1, a push rod, a sealing pressure plate 2, a return spring, an elastic steel sheet, a cylinder, a support plate and an oil filling pipe. The hydraulic cylinder 1 is vertically movably connected to the hanging frame, and a support plate fixed to the hydraulic cylinder 1 is provided on the hanging frame, and a cylinder is provided between the support plate and the hanging frame; a threaded rod is provided at the upper end of the hydraulic cylinder 1, and a sealing pressure plate 1 is provided on the threaded rod and is slidably connected to the inner wall of the hydraulic cylinder 1, an oil filling pipe is provided in the middle of the hydraulic cylinder 1, and a lower end of the hydraulic cylinder is connected to the horizontally arranged hydraulic cylinder 2; each end of the hydraulic cylinder 2 is provided with a push rod extending into the interior of the hydraulic cylinder 2, and one end of the two push rods is provided with a sealing pressure plate 2 slidably connected to the inner wall of the hydraulic cylinder 2 and a return spring cooperating with the sealing pressure plate 2, and the other end of the two push rods is provided with an elastic steel sheet.
[0007] A lower end of the hydraulic cylinder is connected to the middle of the second hydraulic cylinder arranged transversely.
[0008] The push rods at both ends of the hydraulic cylinder 2 and the sealing pressure plate 2, the return spring and the elastic steel sheet at both ends of the push rod are symmetrically arranged along both sides of the hydraulic cylinder 1.
[0009] A rubber anti-slip pad is provided on the elastic steel sheet.
[0010] The return spring is sleeved on the push rod, and the return spring is located between the port of the second hydraulic cylinder and the second sealing pressure plate.
[0011] There are two cylinders between the support plate and the hanging frame, and the two cylinders are symmetrically arranged along two sides of the hydraulic cylinder.
[0012] With the utility model, the threaded rod and the sealing pressure plate on the hydraulic cylinder one are used to squeeze the hydraulic oil into the hydraulic cylinder two. The hydraulic oil pushes out the push rods at both ends of the hydraulic cylinder two, allowing the elastic steel sheets at the outer ends to cling to the inner wall of the filter end ring. The filter screen bonded to the filter cylinder is brought out by squeezing, so that the filter screen can be quickly and conveniently taken out and replaced without damaging the filter screen.
[0013] The beneficial effect of the utility model is that the filter screen can be taken out quickly and conveniently and replaced, thereby improving the maintenance and replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the utility model showing the push rod in an extended state;
[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0017] In the figure: 1. Hanging frame; 2. Hydraulic cylinder 1; 3. Hydraulic cylinder 2; 4. Threaded rod; 5. Sealing pressure plate 1; 6. Push rod; 7. Sealing pressure plate 2; 8. Return spring; 9. Elastic steel sheet; 10. Cylinder; 11. Support plate; 12. Rubber anti-slip pad; 13. Controller; 14. Oil filling pipe. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the accompanying drawings and examples.
[0019] Refer to the attached Figure 1-3A quick replacement device for the condensate pump inlet filter screen comprises a hanging frame 1, a hydraulic cylinder 1 2, a hydraulic cylinder 2 3, a threaded rod 4, a sealing pressure plate 1 5), a push rod 6, a sealing pressure plate 2 7, a return spring 8, an elastic steel sheet 9, a cylinder 10, a support plate 11 and an oil filling pipe 14. The hydraulic cylinder 1 2 is vertically movably connected to the hanging frame 1. The hanging frame 1 is provided with a support plate 11 fixed on the hydraulic cylinder 1 2. A cylinder 10 is provided between the support plate 11 and the hanging frame 1. The upper end of the hydraulic cylinder 2 is provided with a threaded rod 4, a threaded rod 5, a threaded rod 6, a threaded rod 7, a return spring 8, an elastic steel sheet 9, a cylinder 10, a support plate 11 and an oil filling pipe 14. The rod 4 is provided with a sealing pressure plate 5 which is slidably connected to the inner wall of the hydraulic cylinder 2. An oil filling pipe 14 is provided in the middle of the hydraulic cylinder 2. The lower end of the hydraulic cylinder 2 is connected to the horizontally arranged hydraulic cylinder 2 3. The two ends of the hydraulic cylinder 2 3 are respectively provided with a push rod 6 extending into the interior of the hydraulic cylinder 2 3. One end of the two push rods 6 is respectively provided with a sealing pressure plate 2 7 which is slidably connected to the inner wall of the hydraulic cylinder 2 3 and a reset spring 8 which cooperates with the sealing pressure plate 2 7. The other ends of the two push rods 6 are respectively provided with an elastic steel sheet 9.
[0020] In this embodiment, refer to the attached Figure 1-3 A hydraulic cylinder 2 that can be pulled up and down is inserted into the top plate of the hanging frame 1. The bottom end of the hydraulic cylinder 2 is sealed and connected to a horizontally arranged hydraulic cylinder 2 3. The top of the hydraulic cylinder 2 is threadedly connected to a threaded rod 4. The bottom end of the threaded rod 4 extends into the hydraulic cylinder 2 and is fixed with a sealed pressure plate 5. A movable push rod 6 is inserted at both ends of the hydraulic cylinder 2 3. The inner end of the push rod 6 extends into the hydraulic cylinder 2 3 and is fixed with a sealed pressure plate 2 7. The outer end of the push rod 6 is also fixed with an elastic steel sheet 9. Two synchronously moving cylinders 10 are also fixed on the hanging frame 1, and the protruding end of the cylinder 10 is fixed to the support plate 11 on the side of the hydraulic cylinder 2.
[0021] A return spring 8 is also sleeved on the push rod 6, and the return spring 8 is located between the port of the hydraulic cylinder 2 3 and the sealing pressure plate 2 7, and is used to push the push rod 6 to retract and return to its original position, making it convenient to remove the removed filter.
[0022] A rubber anti-slip pad 12 is adhered to the outer surface of the elastic steel sheet 9, and convex points are provided on the outer surface of the rubber anti-slip pad 12. When the elastic steel sheet 9 is squeezed on the inner wall of the end ring of the filter screen, it will deform along the inner wall of the end ring and be squeezed on the inner wall of the end ring in an arc shape, thereby increasing the extrusion contact area. At the same time, the convex points on the rubber anti-slip pad 12 can increase the anti-slip effect, ensuring that it is firmly squeezed and tightly attached to the filter screen to be lifted out.
[0023] A controller 13 is also fixed on the hanging frame 1, and the controller 13 is electrically connected to the two cylinders 10 to facilitate the operation of the control device.
[0024] An oil filling pipe 14 is also provided on the side of the upper part of the hydraulic cylinder 2 for injecting hydraulic oil into the device.
[0025] The working principle of this utility model is as follows:
[0026] Open the sealing plug of the oil filling pipe 14, and inject hydraulic oil into the hydraulic cylinder 1 2 and the hydraulic cylinder 2 3 until the hydraulic oil fills the hydraulic cylinder 1 2 and the hydraulic cylinder 2 3, then seal the oil filling pipe 14, open the sealing cover of the condensate pump filter cartridge, place the hanging frame 1 across the filter cartridge, then connect the controller 13 to the power supply, turn on the cylinder 10, let it contract, and move the hydraulic cylinder 1 2 and its bottom parts downward, extend the push rod 6 into the filter screen and face the end ring of the filter screen, then close the cylinder 10, and then Figure 2 As shown, the threaded rod 4 is rotated downward, and the sealing pressure plate 1 5 is lowered to squeeze the hydraulic oil in the hydraulic cylinder 1 2 into the hydraulic cylinder 2 3. After the hydraulic oil in the hydraulic cylinder 2 3 increases, the sealing pressure plate 2 7 is pushed outward, thereby pushing the push rod 6 outward. The elastic steel sheet 9 at the outer end of the push rod 6 is firmly pressed on the inner wall of the filter end ring, and the return spring 8 is compressed. Then the cylinder 10 is opened to lift the hydraulic cylinder 1 2 and the filter fixed at its bottom, thereby removing the filter bonded to the filter cylinder, and then the threaded rod 4 is rotated upward. The return spring 8 begins to shrink by its own elastic force, squeezing the hydraulic oil in the hydraulic cylinder 2 3 into the hydraulic cylinder 2 again, and the push rod 6 shrinks inward, and the elastic steel sheet 9 is out of contact with the filter, thereby removing the removed filter.
[0027] The condensate pump inlet filter replacement device adopts this structural design, and the filter can be quickly and conveniently removed and replaced without damaging the filter, thereby improving the maintenance and replacement efficiency and thus improving practicality.
Claims
1. A condensate pump inlet filter quick replacement device, characterized by: The invention comprises a hanging frame (1), a hydraulic cylinder (2), a hydraulic cylinder (3), a threaded rod (4), a sealing pressure plate (5), a push rod (6), a sealing pressure plate (7), a return spring (8), an elastic steel sheet (9), a cylinder (10), a support plate (11) and an oil injection pipe (14), wherein the hydraulic cylinder (2) is vertically movably connected to the hanging frame (1), a support plate (11) fixed on the hydraulic cylinder (2) is provided on the hanging frame (1), and a cylinder (10) is provided between the support plate (11) and the hanging frame (1); a threaded rod (4) is provided at the upper end of the hydraulic cylinder (2), and the threaded rod (4) is provided at the upper end of the hydraulic cylinder (2). ) is provided with a sealing pressure plate 1 (5) which is slidably connected to the inner wall of the hydraulic cylinder 1 (2), an oil filling pipe (14) is provided in the middle of the hydraulic cylinder 1 (2), and the lower end of the hydraulic cylinder 1 (2) is connected to the horizontally arranged hydraulic cylinder 2 (3); the two ends of the hydraulic cylinder 2 (3) are respectively provided with a push rod (6) which extends into the interior of the hydraulic cylinder 2 (3), one end of the two push rods (6) is respectively provided with a sealing pressure plate 2 (7) which is slidably connected to the inner wall of the hydraulic cylinder 2 (3) and a return spring (8) which cooperates with the sealing pressure plate 2 (7), and the other ends of the two push rods (6) are respectively provided with an elastic steel sheet (9).
2. The condensate pump inlet filter quick replacement device according to claim 1, characterized in that: The lower end of the hydraulic cylinder 1 (2) is connected to the middle of the hydraulic cylinder 2 (3) arranged laterally.
3. The condensate pump inlet filter quick replacement device according to claim 2, characterized in that: The push rods (6) at both ends of the hydraulic cylinder (3) and the sealing pressure plate (7), the return spring (8) and the elastic steel sheet (9) at both ends of the push rod (6) are symmetrically arranged along both sides of the hydraulic cylinder (2).
4. The condensate pump inlet filter quick replacement device according to claim 3, characterized in that: A rubber anti-slip pad (12) is provided on the elastic steel sheet (9).
5. The condensate pump inlet filter quick replacement device according to claim 3, characterized in that: The return spring (8) is sleeved on the push rod (6), and the return spring (8) is located between the port of the hydraulic cylinder (3) and the sealing pressure plate (7).
6. The condensate pump inlet filter quick replacement device according to claim 1, characterized in that: There are two cylinders (10) between the support plate (11) and the hanging frame (1), and the two cylinders (10) are symmetrically arranged along both sides of the hydraulic cylinder (2).