Closed cooling tower sealing device
By designing a sealing and moving mechanism in a closed cooling tower, and utilizing the internal pressure deformation of the inflatable sealing ring to achieve tight contact, the problem of poor sealing effect at pipe connections is solved, the sealing effect is enhanced, and the replacement process is simplified.
Patent Information
- Application Number
- CN202520322598.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing closed-loop cooling towers suffer from poor sealing at the pipe-to-tower connection due to aging or thermal expansion and contraction, leading to leakage of the cooling medium.
A closed cooling tower sealing device including a sealing mechanism and a moving mechanism was designed. The device uses the internal pressure deformation of the inflatable sealing ring to make close contact with the sealing surface. Combined with a protective cover, it prevents accidental operation, enhances the sealing effect, and facilitates the replacement of the sealing ring.
It effectively prevents cooling medium leakage, improves sealing performance, simplifies the replacement process of sealing rings, and adapts to the deformation problem caused by thermal expansion and contraction of pipelines.
Smart Images

Figure CN223940080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower sealing technology, specifically a closed cooling tower sealing device. Background Technology
[0002] A closed-circuit cooling tower is a cooling system used in industrial and commercial applications. The cooling medium is introduced to the top of the cooling tower through a series of pipes and nozzles and is evenly distributed on the packing layer. At the same time, cold air enters the packing layer from the bottom or side of the tower, causing contact between the water surface and the air, and promoting heat transfer and evaporation.
[0003] After prolonged use, the pipes connected to a closed cooling tower may age or be affected by temperature, leading to cracks at the connection between the pipe and the cooling tower. This can cause the cooling medium to leak from the cracks, affecting the normal operation of the cooling tower. Existing sealing devices use sealing sheets and sealant directly for sealing. However, the connection between the pipes is affected by the precision of processing and assembly, or by thermal expansion and contraction due to changes in ambient temperature. This makes it difficult for the sealing sheets to fit properly between the pipe and the cooling tower, reducing the sealing effect. Therefore, it is necessary to improve the sealing device for closed cooling towers to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a closed-loop cooling tower sealing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a closed cooling tower sealing device, comprising a closed cooling tower body, a sealing mechanism provided on the top of the closed cooling tower body, a moving mechanism provided on the left and right sides of the closed cooling tower body, a connecting pipe II fixedly installed on the left and right sides of the closed cooling tower body, a connecting pipe I fixedly installed on the top of the closed cooling tower body, and an inflatable sealing ring II provided on the outside of the connecting pipe I.
[0006] The sealing mechanism includes a sealing component and a mounting component, with the mounting component disposed on the left and right sides of the sealing component.
[0007] Preferably, the moving mechanism includes a mounting frame, which is fixedly mounted on the back of the closed cooling tower body. A bidirectional threaded rod is rotatably mounted inside the mounting frame. A knob is fixedly mounted on the right side of the bidirectional threaded rod. A sliding frame is threadedly mounted on the outside of the bidirectional threaded rod. A fixing block is fixedly mounted on the outside of the sliding frame. A clamping block is fixedly mounted on the inside of the sliding frame. A pressure plate is fixedly mounted on the top of the clamping block. A threaded ring is fixedly mounted on the right side of the mounting frame. A protective cover is threadedly mounted on the outside of the threaded ring, so that the first fixing frame and the second fixing frame cover the outside of the connecting pipe and fit against the closed cooling tower body.
[0008] Preferably, the clamping block and pressure plate are located inside the clamping block and pressure plate, while the threaded ring and protective cover are located outside the knob to provide protection for the knob.
[0009] Preferably, the sealing assembly includes a first fixing frame, which is disposed at the bottom of the fixing block. An inflatable sealing ring is disposed inside the first fixing frame, and an inflation nozzle is fixedly installed on the outside of the first inflatable sealing ring. An insert block is fixedly installed on the top of the first fixing frame, and a second fixing frame is disposed on the front of the first fixing frame. A positioning plate is fixedly installed on the back of the second fixing frame, and an insert block is fixedly installed on the top of the second fixing frame. The first and second inflatable sealing rings deform under the action of internal pressure, and the middle part expands outward and comes into close contact with the other sealing surface, thereby achieving a sealing effect.
[0010] Preferably, the fixing frame one has a slot at the position corresponding to the positioning plate, and the positioning plate is inserted into the slot. The fixing block has a slot at the position corresponding to the insertion block one and the insertion block two, and the insertion block one and the insertion block two are inserted into the slot. The fixing frame one and the fixing frame two have a placement groove at the position corresponding to the inflatable sealing ring one, and the inflatable sealing ring one is placed in the placement groove for easy installation.
[0011] Preferably, the installation assembly includes a fixing box, which is fixedly installed on the outside of the fixing frame one. A spring is fixedly installed inside the fixing box, and a sliding plate is fixedly installed on the end of the spring away from the fixing box. A plug rod is fixedly installed on the inner side of the sliding plate, and a pinch block is fixedly installed on the outer side of the sliding plate. A fixing plate is fixedly installed on the outer side of the fixing frame two, which facilitates the replacement of the inflation sealing ring one and makes maintenance and replacement more convenient.
[0012] Preferably, the fixing box and the fixing plate are provided with insertion holes at corresponding positions, and the fixing plate is inserted into the insertion holes, so that the fixing frame one and the fixing frame two can be removed from the left and right sides of the connecting pipe two.
[0013] Compared with the prior art, this utility model provides a closed-loop cooling tower sealing device, which has the following advantages:
[0014] 1. The closed cooling tower sealing device, through the set moving mechanism, allows the clamping block and pressure plate to cover the outside of the inflatable sealing ring 2 during use, and the fixing frame 1 and fixing frame 2 to cover the outside of the connecting pipe 2 and fit in close contact with the closed cooling tower body. The setting of the protective cover provides protection for the knob, preventing the bidirectional threaded rod from rotating due to accidental contact, which would result in poor contact with the inflatable sealing ring 1 and increase the sealing effect.
[0015] 2. This closed-loop cooling tower sealing device, through its sealing mechanism, inflates the first and second air-filled sealing rings during use. Due to the internal pressure, the first and second air-filled sealing rings deform, with the middle portion expanding outwards and making tight contact with the other sealing surface, thus achieving a sealing effect. There is no need to worry about deformation caused by thermal expansion and contraction of the connecting pipes, thus enhancing the sealing effect. The first and second fixing frames can be removed from the left and right sides of the connecting pipe, facilitating the replacement of the first air-filled sealing ring and making maintenance and replacement more convenient. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the external structure of the mobile mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the external structure of the sealing mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the fixing box of this utility model.
[0021] In the diagram: 1. Enclosed cooling tower body; 2. Sealing mechanism; 21. Sealing component; 211. Fixing frame one; 212. Inflatable sealing ring one; 213. Inflating nozzle; 214. Insert block one; 215. Fixing frame two; 216. Positioning plate; 217. Insert block two; 22. Mounting component; 221. Fixing box; 222. Spring; 223. Sliding plate; 224. Insert rod; 225. Pinch block; 226. Fixing plate; 3. Moving mechanism; 31. Mounting bracket; 32. Two-way threaded rod; 33. Knob; 34. Sliding bracket; 35. Fixing block; 37. Clamping block; 38. Pressure plate; 39. Threaded ring; 310. Protective cover; 4. Connecting pipe one; 5. Connecting pipe two; 6. Inflatable sealing ring two. 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] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Example 1:
[0025] Please see Figure 1-3 This utility model provides a technical solution: a closed cooling tower sealing device, including a closed cooling tower body 1, a sealing mechanism 2 provided on the top of the closed cooling tower body 1, a moving mechanism 3 provided on the left and right sides of the closed cooling tower body 1, a connecting pipe 2 5 fixedly installed on the left and right sides of the closed cooling tower body 1, a connecting pipe 1 4 fixedly installed on the top of the closed cooling tower body 1, and an air-filled sealing ring 2 6 provided on the outside of the connecting pipe 1 4.
[0026] The sealing mechanism 2 includes a sealing component 21 and a mounting component 22, with the mounting component 22 disposed on the left and right sides of the sealing component 21.
[0027] Furthermore, the moving mechanism 3 includes a mounting frame 31, which is fixedly mounted on the back of the closed cooling tower body 1. A bidirectional threaded rod 32 is rotatably mounted inside the mounting frame 31. A knob 33 is fixedly mounted on the right side of the bidirectional threaded rod 32. A sliding frame 34 is threadedly mounted on the outside of the bidirectional threaded rod 32. A fixing block 35 is fixedly mounted on the outside of the sliding frame 34. A clamping block 37 is fixedly mounted on the inside of the sliding frame 34. A pressure plate 38 is fixedly mounted on the top of the clamping block 37. A threaded ring 39 is fixedly mounted on the right side of the mounting frame 31. A protective cover 310 is threadedly mounted on the outside of the threaded ring 39, so that the fixing frame 1 211 and the fixing frame 2 215 cover the outside of the connecting pipe 2 5 and fit against the closed cooling tower body 1.
[0028] Furthermore, a threaded ring 39 and a protective cover 310 are disposed inside the clamping block 37 and the pressure plate 38, respectively, to protect the knob 33.
[0029] Example 2:
[0030] Please see Figure 4 Furthermore, in conjunction with Embodiment 1, the sealing assembly 21 includes a fixing frame 211, which is located at the bottom of the fixing block 35. An inflatable sealing ring 212 is disposed inside the fixing frame 211, and an inflation nozzle 213 is fixedly installed on the outside of the inflatable sealing ring 212. An insert block 214 is fixedly installed on the top of the fixing frame 211, a fixing frame 215 is disposed on the front of the fixing frame 211, a positioning plate 216 is fixedly installed on the back of the fixing frame 215, and an insert block 217 is fixedly installed on the top of the fixing frame 215. The inflatable sealing ring 212 and the inflatable sealing ring 216 deform under the action of internal pressure, and the middle part expands outward and comes into close contact with another sealing surface, thereby achieving a sealing effect.
[0031] Furthermore, slots are provided at the corresponding positions of the fixing frame 211 and the positioning plate 216, and the positioning plate 216 is inserted into the slots. Slots are provided at the corresponding positions of the fixing block 35 and the insert block 214 and the insert block 217, and the insert block 214 and the insert block 217 are inserted into the slots. Placement grooves are provided at the corresponding positions of the fixing frame 211 and the fixing frame 215 and the inflatable sealing ring 212, and the inflatable sealing ring 212 is placed in the placement grooves for easy installation.
[0032] Furthermore, the installation component 22 includes a fixing box 221, which is fixedly installed on the outside of the fixing frame 211. A spring 222 is fixedly installed inside the fixing box 221. A sliding plate 223 is fixedly installed on the end of the spring 222 away from the fixing box 221. An insert rod 224 is fixedly installed on the inside of the sliding plate 223. A pinch block 225 is fixedly installed on the outside of the sliding plate 223. A fixing plate 226 is fixedly installed on the outside of the fixing frame 215, which facilitates the replacement of the inflation sealing ring 212 and makes maintenance and replacement more convenient.
[0033] Furthermore, the fixing box 221 and the fixing plate 226 are provided with insertion holes at corresponding positions, and the fixing plate 226 is inserted into the insertion holes. The fixing frame 1 211 and the fixing frame 215 are removed from the left and right sides of the connecting pipe 2 5.
[0034] In actual operation, when this device is used, after placing the first inflation sealing ring 212 inside the first fixed frame 211 and the second fixed frame 215, insert the first insert block 214 and the second insert block 217 into the corresponding slots of the fixed block 35, insert the fixed plate 226 into the fixed box 221, and push the pinch block 225 outward. The pinch block 225 drives the sliding plate 223 to move, thereby causing the insert rod 224 to be inserted into the corresponding insertion hole of the fixed plate 226, thus completing the fixing operation of the first fixed frame 211 and the second fixed frame 215. Turn the knob 33, and the knob 33 will drive the bidirectional threaded rod 32 to rotate. The rotation of the bidirectional threaded rod 32 will cause the two sliding frames 34 to move in opposite directions, thereby causing the clamping block 37 and the pressure plate 38 to cover the outside of the second inflation sealing ring 6, so that the first fixed frame 211 and the second fixed frame 215 cover the outside of the connecting pipe 2 5 and fit against the closed cooling tower body 1. Inflation is performed inside 212 and the second inflatable sealing ring 6. Due to the internal pressure, the first inflatable sealing ring 212 and the second inflatable sealing ring 6 deform, and the middle part expands outward, making close contact with the other sealing surface, thus achieving a sealing effect. There is no need to worry about the deformation caused by thermal expansion and contraction of the first connecting pipe 4 and the second connecting pipe 5, which would increase the sealing effect. When the first inflatable sealing ring 212 on the outside of the second connecting pipe 5 is damaged, the pinch block 225 is pulled outward to disengage the fixing plate 226 from the insertion limit of the insertion rod 224. The first fixing frame 211 and the second fixing frame 215 are removed from the left and right sides of the second connecting pipe 5, making it easier to replace the first inflatable sealing ring 212. This makes maintenance and replacement more convenient. In addition, the protective cover 310 provides protection for the knob 33, preventing the bidirectional threaded rod 32 from rotating due to accidental contact, which would cause poor contact between 7 and the first inflatable sealing ring 212, thus increasing the sealing effect.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A closed-loop cooling tower sealing device, comprising a closed-loop cooling tower body (1), characterized in that: The closed cooling tower body (1) is provided with a sealing mechanism (2) at the top, and a moving mechanism (3) is provided on the left and right sides of the closed cooling tower body (1). A connecting pipe II (5) is fixedly installed on the left and right sides of the closed cooling tower body (1). A connecting pipe I (4) is fixedly installed on the top of the closed cooling tower body (1). An air-filled sealing ring II (6) is provided on the outside of the connecting pipe I (4). The sealing mechanism (2) includes a sealing component (21) and an installation component (22), wherein the installation component (22) is disposed on the left and right sides of the sealing component (21).
2. The closed-loop cooling tower sealing device according to claim 1, characterized in that: The moving mechanism (3) includes a mounting frame (31), which is fixedly mounted on the back of the closed cooling tower body (1). A bidirectional threaded rod (32) is rotatably mounted inside the mounting frame (31). A knob (33) is fixedly mounted on the right side of the bidirectional threaded rod (32). A sliding frame (34) is threaded on the outside of the bidirectional threaded rod (32). A fixing block (35) is fixedly mounted on the outside of the sliding frame (34). A clamping block (37) is fixedly mounted on the inside of the sliding frame (34). A pressure plate (38) is fixedly mounted on the top of the clamping block (37). A threaded ring (39) is fixedly mounted on the right side of the mounting frame (31). A protective cover (310) is threaded on the outside of the threaded ring (39).
3. The closed-loop cooling tower sealing device according to claim 2, characterized in that: The clamping block (37) and pressure plate (38) are located inside the clamping block (37) and pressure plate (38), while the threaded ring (39) and protective cover (310) are located outside the knob (33).
4. A closed-loop cooling tower sealing device according to claim 2, characterized in that: The sealing assembly (21) includes a first fixing frame (211), which is located at the bottom of the fixing block (35). An inflatable sealing ring (212) is provided inside the first fixing frame (211), and an inflation nozzle (213) is fixedly installed on the outside of the inflatable sealing ring (212). An insert block (214) is fixedly installed on the top of the first fixing frame (211). A second fixing frame (215) is provided on the front of the first fixing frame (211), and a positioning plate (216) is fixedly installed on the back of the second fixing frame (215). An insert block (217) is fixedly installed on the top of the second fixing frame (215).
5. A closed-loop cooling tower sealing device according to claim 4, characterized in that: The fixing frame 1 (211) has a slot at the corresponding position of the positioning plate (216), and the positioning plate (216) is inserted into the slot. The fixing block (35) has a slot at the corresponding position of the insertion block 1 (214) and the insertion block 2 (217), and the insertion block 1 (214) and the insertion block 2 (217) are inserted into the slot. The fixing frame 1 (211) and the fixing frame 2 (215) have a placement groove at the corresponding position of the inflatable sealing ring 1 (212), and the inflatable sealing ring 1 (212) is placed inside the placement groove.
6. A closed-loop cooling tower sealing device according to claim 4, characterized in that: The mounting assembly (22) includes a fixing box (221), which is fixedly installed on the outside of the first fixing frame (211). A spring (222) is fixedly installed inside the fixing box (221). A sliding plate (223) is fixedly installed at the end of the spring (222) away from the fixing box (221). A plug rod (224) is fixedly installed on the inside of the sliding plate (223). A pinch block (225) is fixedly installed on the outside of the sliding plate (223). A fixing plate (226) is fixedly installed on the outside of the second fixing frame (215).
7. A closed-loop cooling tower sealing device according to claim 6, characterized in that: The fixing box (221) and the fixing plate (226) are provided with insertion holes at corresponding positions, and the fixing plate (226) is inserted into the insertion holes.