High-temperature-resistant heat exchanger protective cover for closed cooling tower
By designing a motor-driven cleaning system and a detachable installation structure, the problems of protective cover blockage and inconvenient installation were solved, realizing automatic cleaning and quick installation and disassembly, thus improving the operational stability and efficiency of the cooling tower.
Patent Information
- Application Number
- CN202522389031.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-11
AI Technical Summary
Existing heat exchanger protective covers are prone to having their ventilation holes blocked by willow catkins, leaves, dust, insects, etc., which affects the flow of cooling air and makes installation and disassembly inconvenient.
A high-temperature heat exchanger protective cover for a closed cooling tower is designed, employing a motor-driven cleaning system including cleaning rollers and frame plates. The system achieves automatic cleaning of the protective cover surface and vents through gear and ring meshing. Combined with a detachable installation structure, the installation and disassembly process is simplified.
It enables quick installation and removal of the protective cover, and can automatically clean the ventilation holes to maintain cooling efficiency and simplify maintenance.
Smart Images

Figure CN224933322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger protective cover technology, specifically a high-temperature resistant heat exchanger protective cover for a closed cooling tower. Background Technology
[0002] The heat exchanger protective cover is a customized accessory designed to improve the reliability, durability, and efficiency of closed-circuit cooling towers under harsh operating conditions. Through its high-temperature resistant and corrosion-resistant materials and scientifically designed ventilation structure, it provides a robust "firewall" and "protective shell" for the core and expensive heat exchanger, ensuring the stable operation of industrial-grade closed-circuit cooling towers.
[0003] Existing heat exchanger protective covers on the market usually do not have an automatic cleaning function. Over time, the ventilation holes, louvers or grilles on the surface of the protective cover are easily blocked by willow catkins, leaves, dust, insects, etc., which will hinder the flow of cooling air. In addition, the protective covers on the market are usually fixed with screws when installed, which is quite troublesome to disassemble and install each time. Utility Model Content
[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a protective cover for a closed cooling tower high-temperature heat exchanger.
[0005] This utility model is implemented as follows: a protective cover for a closed cooling tower high-temperature heat exchanger is constructed. The device includes a protective cover, a motor fixedly connected to the front and rear end faces of the protective cover, and a battery provided at the lower end of the motor to provide the required power to the motor, a slider inserted and slidably connected to the bottom of the front and rear end faces of the protective cover, a ventilation opening opened on the outer side of the protective cover, a frame plate slidably connected to the outer side of the protective cover, a mounting base plate installed at the bottom of the protective cover, and a locking block inserted and slidably connected to the outer side of the mounting base plate.
[0006] It also includes a slot on the bottom inner side of the protective cover, into which a slider slides and inserts into the slot; a cleaning brush is fixedly connected to the inner side of the frame plate; a cleaning roller is rotatably connected to the inner side of the frame plate and is slidably connected to the inside of the ventilation opening; a connecting shaft is inserted and rotatably connected to the front and rear ends of the frame plate; a gear is provided inside the protective cover, and the connecting shaft and the gear are fixedly connected to each other; a gear ring is fixedly connected inside the protective cover, and the gear is located inside the gear ring and meshes with each other; a connecting plate is rotatably connected to the rear end face of the gear, and the rear end face of the connecting plate away from the gear is fixedly connected to the motor output end through a connecting column.
[0007] Preferably, a long gear is rotatably connected to the center of the mounting base plate, and a torsion spring is provided on the upper end face of the long gear. Four toothed plates are slidably connected inside the mounting base plate, and the toothed plates mesh with the long gear. The toothed plates are fixedly connected to the locking block. A first bevel gear is rotatably connected inside the upper and lower ends of the frame plate, and the first bevel gear is fixedly connected to the connecting shaft. A first connecting plate is rotatably connected inside the upper and lower ends of the frame plate. A second connecting rod is rotatably connected inside the left and right ends of the frame plate, and the upper and lower ends of the second connecting rod mesh with the first connecting plate through bevel gears. The second connecting rod and the first connecting plate are symmetrically arranged.
[0008] Preferably, a second bevel gear is fixedly connected to the middle of the outer side of the first connecting plate, and the second bevel gear meshes with the first bevel gear. A third bevel gear is fixedly connected to the left and right ends of the outer side of the first connecting plate. A fourth bevel gear is rotatably connected inside the frame plate, and the fourth bevel gear is fixedly connected to the cleaning roller, and the fourth bevel gear meshes with the third bevel gear.
[0009] Preferably, the motor is electrically connected to the battery, and the motor is configured to start intermittently, driving the gear to roll along the gear ring through the connecting plate, thereby causing the frame plate to slide periodically along the outer side of the protective cover.
[0010] Preferably, the rotation of the rack gear is converted into radial movement of the locking block by the toothed plate, and the torsion spring provides a restoring force so that the rack gear returns to its initial position when no external force is applied.
[0011] Preferably, the rotation axis of the cleaning roller is parallel to the central axis of the vent, and the cleaning bristles and the cleaning roller together constitute the vent cleaning system, which cleans the inner and outer surfaces of the vent simultaneously when the frame plate moves.
[0012] This utility model has the following advantages: This utility model provides an improved high-temperature resistant heat exchanger protective cover for closed-loop cooling towers, which has the following improvements compared to similar equipment:
[0013] The high-temperature heat exchanger protective cover for a closed cooling tower described in this utility model can be quickly installed and used by placing the heat exchanger on the mounting base plate, pressing and pushing the locking block while covering the cover, so that the locking block is engaged with the inside of the locking slot. For disassembly, simply press the slider and push the locking block to move it away from the locking slot, and the protective cover can be quickly removed and replaced. When it is necessary to clean the surface of the protective cover, the cleaning roller can be rotated at the same time by turning on the motor to move the frame plate up and down. This allows for simultaneous cleaning of the surface of the protective cover and the inside of the ventilation opening. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the protective cover of this utility model;
[0015] Figure 2 This is a utility model Figure 1 Enlarged cross-sectional view of structure A;
[0016] Figure 3 This is a schematic diagram of the frame plate connection of this utility model;
[0017] Figure 4 This is a top view of the mounting base plate of this utility model;
[0018] Figure 5 This is a top view of the frame plate of this utility model.
[0019] The components include: protective cover-1, motor-2, slider-3, vent-4, frame plate-5, mounting base plate-6, clamp-7, bayonet-8, cleaning brush bristles-9, cleaning roller-10, connecting shaft-11, gear-12, gear ring-13, connecting plate-14, long gear-15, torsion spring-16, toothed plate-17, first bevel gear-18, first connecting plate-19, second connecting rod-190, second bevel gear-20, third bevel gear-21, and fourth bevel gear-22. Detailed Implementation
[0020] The following is in conjunction with the appendix Figures 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] Example 1:
[0024] Please see Figures 1-5 This utility model discloses a protective cover for a closed-loop cooling tower high-temperature heat exchanger, comprising a protective cover 1, a motor 2 fixedly connected to the front and rear end faces of the protective cover 1, with a battery at the lower end of the motor 2 providing the necessary power, a slider 3 slidably connected to the bottom of the front and rear end faces of the protective cover 1, a ventilation opening 4 on the outer side of the protective cover 1, a frame plate 5 slidably connected to the outer side of the protective cover 1, a mounting base plate 6 installed at the bottom of the protective cover 1, a locking block 7 slidably connected to the outer side of the mounting base plate 6, and a slot 8 on the inner bottom wall of the protective cover 1, with the slider 3 slidably inserted into the slot 8. A cleaning brush bristle 9 is fixedly connected to the inner side of the frame plate 5. A cleaning roller 10 is rotatably connected to the inner side of the frame plate 5, and the cleaning roller 10 is inserted into the inner side of the ventilation port 4 and slidably connected to each other. A connecting shaft 11 is inserted into and rotatably connected to the front and rear ends of the frame plate 5. A gear 12 is provided inside the protective cover 1, and the connecting shaft 11 and the gear 12 are fixedly connected to each other. A gear ring 13 is fixedly connected inside the protective cover 1, and the gear 12 is located inside the gear ring 13 and meshes with each other. A connecting plate 14 is rotatably connected to the rear end face of the gear 12, and the rear end face of the connecting plate 14 away from the gear 12 is fixedly connected to the output end of the motor 2 through a connecting column.
[0025] A long gear 15 is rotatably connected to the center of the mounting base plate 6. A torsion spring 16 is provided on the upper end face of the long gear 15. Four toothed plates 17 are slidably connected inside the mounting base plate 6, and the toothed plates 17 mesh with the long gear 15. The toothed plates 17 are fixedly connected to the locking block 7. A first bevel gear 18 is rotatably connected to the upper and lower ends of the frame plate 5, and the first bevel gear 18 is fixedly connected to the connecting shaft 11. A first connecting plate 19 is rotatably connected to the upper and lower ends of the frame plate 5. A second connecting rod 190 is rotatably connected to the left and right ends of the frame plate 5, and the upper and lower ends of the second connecting rod 190 mesh with the first connecting plate 19 through bevel gears. The second connecting rod 190 and the first connecting plate 19 are symmetrically arranged. A second bevel gear 20 is fixedly connected to the middle of the outer side of the first connecting plate 19, and the second bevel gear 20 meshes with the first bevel gear 18. A third bevel gear 21 is fixedly connected to the left and right ends of the outer side of a connecting plate 19. A fourth bevel gear 22 is rotatably connected inside the frame plate 5, and the fourth bevel gear 22 is fixedly connected to the cleaning roller 10. The fourth bevel gear 22 and the third bevel gear 21 mesh with each other. The motor 2 is electrically connected to the battery, and the motor 2 is configured to start intermittently. The connecting plate 14 drives the gear 12 to roll along the toothed ring 13, thereby causing the frame plate 5 to slide periodically along the outer side of the protective cover 1. The rotation of the long gear 15 is converted into the radial movement of the locking block 7 through the toothed plate 17, and the torsion spring 16 provides a restoring force so that the long gear 15 returns to its initial position when no external force is applied. The rotation axis of the cleaning roller 10 is parallel to the central axis of the vent 4, and the cleaning bristles 9 and the cleaning roller 10 together constitute the cleaning system of the vent 4, which cleans the inner and outer surfaces of the vent 4 synchronously when the frame plate 5 moves.
[0026] The working principle of a high-temperature heat exchanger protective cover for a closed cooling tower based on Embodiment 1 is as follows:
[0027] First, when using the device, the mounting base plate 6 is fixed in the working area with bolts and nuts. Then, the heat exchanger is placed on top of the mounting base plate 6. After that, the protective cover 1 is put on and the locking block 7 is pushed by the protective cover 1 so that the locking block 7 is inserted into the inside of the locking slot 8 for quick installation and use. When disassembling, simply press the slider 3 to push the locking block 7 to move, which in turn moves the toothed plate 17 and drives the long gear 15 to rotate. The torsion spring 16 is compressed by force, and at the same time, the locking block 7 is disengaged from the locking slot 8, so the protective cover 1 can be quickly removed and replaced.
[0028] Secondly, when the ventilation holes, louvers, or grilles on the surface of the protective cover are blocked by willow catkins, leaves, dust, insects, etc., the motor 2 is turned on to move the connecting plate 14 and the gear 12. At the same time, the gear 12 is rotated by the gear ring 13, and the frame plate 5 is moved up and down by the connecting shaft 11. When the gear 12 rotates, it drives the connecting shaft 11 to rotate, which drives the first bevel gear 18 and the second bevel gear 20 to rotate the first connecting plate 19 and the second connecting rod 190. The third bevel gear 21 and the fourth bevel gear 22 drive the cleaning roller 10 to rotate. This can also simultaneously clean the surface of the protective cover 1 and the inside of the ventilation opening 4.
[0029] This utility model provides an improved protective cover for a high-temperature heat exchanger in a closed cooling tower. During use, when the heat exchanger is placed on the mounting base plate 6, the protective cover 1 is placed on top while simultaneously pressing and pushing the locking block 7, causing it to engage with the inside of the locking slot 8 for quick installation. For disassembly, simply press the slider 3 and push the locking block 7 to move it away from the locking slot 8, allowing the protective cover 1 to be quickly removed and replaced. When cleaning the surface of the protective cover is required, the motor 2 is turned on to move the frame plate 5 up and down, while the cleaning roller 10 rotates, simultaneously cleaning the surface of the protective cover 1 and the inside of the ventilation opening 4.
[0030] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A protective cover for a closed cooling tower high-temperature heat exchanger, comprising a protective cover (1), a motor (2) fixedly connected to the front and rear end faces of the protective cover (1), and a battery provided at the lower end of the motor (2) to provide the required power to the motor (2), a slider (3) inserted and slidably connected to the bottom of the front and rear end faces of the protective cover (1), a ventilation opening (4) opened on the outer side of the protective cover (1), a frame plate (5) slidably connected to the outer side of the protective cover (1), a mounting base plate (6) installed at the bottom of the protective cover (1), and a clip (7) inserted and slidably connected to the outer side of the mounting base plate (6); Its features are, The protective cover (1) has a slot (8) on the bottom inner wall, and the slider (3) slides into the slot (8). The inner side of the frame plate (5) is fixedly connected to a cleaning brush (9). The inner side of the frame plate (5) is rotatably connected to a cleaning roller (10), and the cleaning roller (10) is inserted into the vent (4) and slidably connected to each other. The front and rear ends of the frame plate (5) are rotatably connected to a connecting shaft (11). The protective cover (1) has a gear (12) inside, and the connecting shaft (11) and the gear (12) are fixedly connected to each other. The protective cover (1) has a gear ring (13) fixedly connected inside, and the gear (12) is located inside the gear ring (13) and meshes with each other. The rear end face of the gear (12) is rotatably connected to a connecting plate (14), and the rear end face of the connecting plate (14) away from the gear (12) is fixedly connected to the output end of the motor (2) through a connecting column.
2. The protective cover for a high-temperature heat exchanger in a closed cooling tower according to claim 1, characterized in that, The mounting base plate (6) is rotatably connected to the center of the mounting base plate (6). The upper end of the mounting base plate (6) is provided with a torsion spring (16). The mounting base plate (6) is slidably connected to four toothed plates (17), and the toothed plates (17) mesh with the mounting base plate (15). The toothed plates (17) are fixedly connected to the locking block (7). The upper and lower ends of the frame plate (5) are rotatably connected to the first bevel gear (18), and the first bevel gear (18) is fixedly connected to the connecting shaft (11). The upper and lower ends of the frame plate (5) are rotatably connected to the first connecting plate (19). The left and right ends of the frame plate (5) are rotatably connected to the second connecting rod (190), and the upper and lower ends of the second connecting rod (190) mesh with the first connecting plate (19) through bevel gears. The second connecting rod (190) and the first connecting plate (19) are symmetrically arranged.
3. The protective cover for a high-temperature heat exchanger in a closed cooling tower according to claim 2, characterized in that, A second bevel gear (20) is fixedly connected to the middle of the outer side of the first connecting plate (19), and the second bevel gear (20) meshes with the first bevel gear (18). A third bevel gear (21) is fixedly connected to the left and right ends of the outer side of the first connecting plate (19). A fourth bevel gear (22) is rotatably connected inside the frame plate (5), and the fourth bevel gear (22) is fixedly connected to the cleaning roller (10). The fourth bevel gear (22) meshes with the third bevel gear (21).
4. The protective cover for a high-temperature heat exchanger in a closed cooling tower according to claim 3, characterized in that, The motor (2) is electrically connected to the battery and is configured to start intermittently. The motor (2) drives the gear (12) to roll along the gear ring (13) via the connecting plate (14), thereby causing the frame plate (5) to slide periodically along the outer side of the protective cover (1).
5. The protective cover for a high-temperature heat exchanger in a closed cooling tower according to claim 4, characterized in that, The rotation of the long gear (15) is converted into the radial movement of the locking block (7) by the toothed plate (17), and the torsion spring (16) provides a restoring force so that the long gear (15) returns to its initial position when no external force is applied.
6. The protective cover for a high-temperature heat exchanger in a closed cooling tower according to claim 5, characterized in that, The rotation axis of the cleaning roller (10) is parallel to the central axis of the vent (4), and the cleaning bristles (9) and the cleaning roller (10) together constitute the cleaning system of the vent (4), which cleans the inner and outer surfaces of the vent (4) simultaneously when the frame plate (5) moves.
