Heat exchanger with medium leakage prevention
By introducing control components into the heat exchanger and utilizing the cooperation between the rotating internal threaded column and the sealing plate, the leakage problem during media replacement is solved, achieving a safe and efficient media replacement process and preventing media from gushing out.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU YIDA HIGH ENERGY HEAT EXCHANGE EQUIP
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-07
AI Technical Summary
Existing heat exchangers are prone to media leakage during media replacement and cannot effectively prevent media from gushing out when disassembling media channels or pipelines.
A control assembly was designed, comprising a fixed pipe, a control panel, an internally threaded column, a drain pipe, and a sealing plate. By rotating the internally threaded column, the sliding sleeve and the sealing plate are moved, gradually opening the medium pipe channel to discharge the medium. After installation, the assembly is sealed to prevent medium leakage.
It enables safe operation without media spillage during media replacement, improves replacement efficiency, prevents media leakage, and ensures system safety and environmental protection.
Smart Images

Figure CN224470862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, specifically to a heat exchanger that prevents media leakage. Background Technology
[0002] A heat exchanger is a device used to transfer heat between different fluids, and it is widely used in industries such as manufacturing, energy, and chemicals. Its core function is to transfer and recover energy through efficient heat exchange, thereby improving system energy efficiency and reducing energy consumption. For example, in power plants, heat exchangers can transfer the heat of high-temperature steam to cold water to generate steam to drive turbines; in the petrochemical industry, they are used to cool or heat process fluids to ensure stable reaction conditions. Furthermore, air conditioning and refrigeration systems also rely on heat exchangers to regulate air temperature. By optimizing the heat exchange process, heat exchangers can not only reduce energy waste but also control fluid temperature to meet production needs, which is of great significance for energy conservation, emission reduction, and process safety. They come in various designs, including shell-and-tube and plate types, to adapt to the thermal management requirements of different scenarios.
[0003] The medium inside the heat exchanger, as the primary source of heat exchange, requires replacement after prolonged use. However, during replacement, directly removing the plugs from the medium channels or pipes can cause the medium inside to gush out, leading to leakage and contamination. Existing heat exchangers cannot guarantee that the medium channels or pipes will not leak out during disassembly. Therefore, we propose a heat exchanger designed to prevent medium leakage. Utility Model Content
[0004] The purpose of this utility model is to provide a heat exchanger that prevents media leakage, which solves the problem of leakage that easily occurs when the media inside the heat exchanger is changed.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A heat exchanger for preventing media leakage includes a tube body and a support. Both ends of the tube body are bolted to connecting seats, and connecting pipes are fixedly connected to the surfaces of the connecting seats. A heat exchange tube and a media tube are fixedly connected inside the tube body. The heat exchanger also includes a control assembly to prevent leakage of the media in the media tube during replacement. The control assembly includes a fixed tube fixedly connected to the inner wall of the tube body. A control panel is fixedly connected to the surface of the fixed tube. An externally threaded tube is fixedly connected to the side of the control panel away from the fixed tube. An internally threaded post is threaded through and threaded onto the externally threaded tube. A drain pipe is fixedly connected to the inner side of the internally threaded post. A movable groove is formed on the side of the control panel, and a rotating plate is rotatably connected to the inner side of the control panel.
[0007] Preferably, a lever is fixedly connected to the side of the rotating plate, the lever passes through the movable groove, and a linkage groove is formed on the surface of the rotating plate.
[0008] Preferably, the linkage groove is hexagonal in shape, and six sets of sliding rods are slidably connected to the inner side of the linkage groove.
[0009] Preferably, a sealing plate is fixedly connected to one end of the slide rod one located outside the linkage groove, and a slide rod two is fixedly connected to the other end of the sealing plate away from the slide rod one.
[0010] Preferably, the inner surface of the control panel is provided with a short groove, and the end of the slide rod away from the sealing plate is inserted into the inner side of the short groove.
[0011] Preferably, the number of sealing plates is six sets, and the six sets of sealing plates are arranged in a circular array with the center line of the control disk as the axis. At the same time, the initial state of the six sets of sealing plates is a sealed state.
[0012] Preferably, a sliding sleeve is fitted on the outer side of the fixed tube, the sliding sleeve is slidably connected to the fixed tube, and an arc-shaped guide groove is opened on the inner side of the sliding sleeve. The lever passes through the movable groove and is inserted into the inner side of the arc-shaped guide groove.
[0013] By employing the above technical solution, this utility model provides a heat exchanger that prevents media leakage. It possesses at least the following beneficial effects:
[0014] 1. When the rotating plate of this utility model rotates, the regular hexagonal linkage groove on its surface drives the six sets of sliding rods to move synchronously. The sliding rods push the sealing plate to move outward, and the sealing plate drives the sliding rods to slide in the short sliding groove on the inner surface of the control panel. When the rotating plate rotates, the sealing plate moves outward and gradually opens the channel of the medium pipe. At this time, the medium in the medium pipe can be discharged through the drain pipe. At this time, the internal threaded column and the external threaded pipe are connected, so that the drain pipe can discharge liquid. The sealing plate in the control panel can discharge liquid only after the drain pipe is installed, avoiding the medium in the medium pipe from flowing out directly.
[0015] 2. This utility model involves rotating the internal threaded column in the opposite direction to disassemble the drain pipe and pull back the sliding sleeve. The lever moves in the opposite direction along the movable groove and the arc-shaped guide groove. The first sliding rod pulls the sealing plate inward, and the second sliding rod slides in the opposite direction in the short sliding groove. The six sets of sealing plates close again, restoring the sealing state, preventing media leakage, and improving the efficiency of media replacement. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the unfolded structure of the connecting seat in this utility model;
[0019] Figure 3 This is a partially enlarged structural diagram of the inner side of the tube body in this utility model;
[0020] Figure 4 This is a schematic cross-sectional view of the sliding sleeve in this utility model;
[0021] Figure 5 This is a schematic diagram of the internal unfolded structure of the control panel in this utility model.
[0022] In the diagram: 1. Pipe body; 2. Control component; 3. Support; 4. Connecting seat; 5. Connecting pipe; 7. Heat exchange pipe; 8. Medium pipe; 21. Fixed pipe; 22. Control panel; 23. External threaded pipe; 24. Internal threaded column; 25. Discharge pipe; 26. Movable groove; 27. Lever; 28. Rotating plate; 29. Linkage groove; 210. Short slide groove; 211. Slide rod one; 212. Sealing plate; 213. Slide rod two; 214. Sliding sleeve; 215. Arc-shaped guide groove. Detailed Implementation
[0023] 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.
[0024] A heat exchanger designed to prevent media leakage, such as Figure 1 - Figure 5As shown, the system includes a pipe body 1 and a support 3. Both ends of the pipe body 1 are bolted to connecting seats 4, and connecting pipes 5 are fixedly connected to the surface of the connecting seats 4. A heat exchange pipe 7 and a medium pipe 8 are fixedly connected inside the pipe body 1. The system also includes a control assembly 2 to prevent leakage of the medium in the medium pipe 8 during replacement. The control assembly 2 includes a fixed pipe 21, which is fixedly connected to the inner wall of the pipe body 1. A control panel 22 is fixedly connected to the surface of the fixed pipe 21, and a [missing information - likely a component or element] is fixedly connected to the side of the control panel 22 away from the fixed pipe 21. An externally threaded tube 23 is threaded through and connected to an internally threaded post 24. A drain pipe 25 is fixedly connected to the inner side of the internally threaded post 24. A movable groove 26 is provided on the side of the control panel 22. A rotating plate 28 is rotatably connected to the inner side of the control panel 22. Since the lever 27 passes through the movable groove 26, the movable groove 26 limits the lever 27. The lever 27 is forced to slide within the movable groove 26 by the arc-shaped guide groove 215, which further causes the lever 27 to rotate the rotating plate 28. A lever 27 is fixedly connected to the side of the rotating plate 28. Rotating the internally threaded column 24 causes it to move closer to the sliding sleeve 214. As the internally threaded column 24 continues to rotate, it pushes the sliding sleeve 214 to slide. This causes the arc-shaped guide groove 215 on the inner side of the sliding sleeve 214 to abut against the lever 27. The lever 27 passes through the movable groove 26. A linkage groove 29 is provided on the surface of the rotating plate 28. The linkage groove 29 is hexagonal in shape, and six sets of sliding rods 211 are slidably connected to its inner side. A sealing plate 212 is fixedly connected to one end of each sliding rod 211 located outside the linkage groove 29, and a second sliding rod 213 is fixedly connected to the other end of the sealing plate 212 away from the first sliding rod 211. The inner surface of the control panel 22 is provided with a short sliding groove 210. The end of the second sliding rod 213 away from the sealing plate 212 is inserted into the inner side of the short sliding groove 210. When the rotating plate 28 rotates, the regular hexagonal linkage groove 29 on its surface drives the six sets of first sliding rods 211 to move synchronously. The first sliding rod 211 pushes the sealing plate 212 to move outward. The sealing plate 212 drives the second sliding rod 213 to slide in the short sliding groove 210 on the inner surface of the control panel 22. When the rotating plate 28 rotates, the sealing plate 212 moves outward and gradually opens the channel of the medium pipe 8. There are six sets of sealing plates 212, and the six sets of sealing plates 212 are arranged in a circular array with the center line of the control panel 22 as the axis. When the rotating plate 28 rotates, the sealing plates 212 move outward and gradually open the channel of the medium pipe 8. At this time, the medium in the medium pipe 8 can be discharged through the drain pipe 25. At this time, the internal threaded post 24 and the external threaded pipe 23 are connected, so that the drain pipe 25 can discharge liquid. The sealing plates 212 in the control panel 22 can discharge liquid only after the drain pipe 25 is installed. At the same time, the initial state of the six sets of sealing plates 212 is the sealed state.A sliding sleeve 214 is fitted on the outer side of the fixed tube 21. The sliding sleeve 214 is slidably connected to the fixed tube 21. An arc-shaped guide groove 215 is opened on the inner side of the sliding sleeve 214. The lever 27 passes through the movable groove 26 and is inserted into the inner side of the arc-shaped guide groove 215.
[0025] In use, when the medium in the medium pipe 8 needs to be replaced, the internal threaded column 24 is rotated to move towards the sliding sleeve 214. As the internal threaded column 24 continues to rotate, it pushes the sliding sleeve 214 to slide. During this sliding, the arc-shaped guide groove 215 on the inner side of the sliding sleeve 214 abuts against the lever 27. Since the lever 27 passes through the movable groove 26, the movable groove 26 relatively limits the lever 27. The lever 27 is forced to slide within the movable groove 26 by the arc-shaped guide groove 215, further causing the lever 27 to rotate the rotating plate 28. When in motion, the hexagonal linkage groove 29 on its surface drives the six sets of sliding rods 211 to move synchronously. The sliding rods 211 push the sealing plate 212 to move outward. The sealing plate 212 drives the sliding rods 213 to slide in the short sliding groove 210 on the inner surface of the control panel 22. When the rotating plate 28 rotates, the sealing plate 212 moves outward and gradually opens the channel of the medium pipe 8. At this time, the medium in the medium pipe 8 can be discharged through the drain pipe 25. At this time, the internal threaded column 24 and the external threaded pipe 23 are connected, so that the drain pipe 25 can discharge liquid. The sealing plate 212 in the control panel 22 can discharge liquid only after the drain pipe 25 is installed, avoiding the medium in the medium pipe 8 from flowing out directly.
[0026] After the medium replacement is completed, rotate the internal threaded column 24 in the opposite direction, remove the drain pipe 25 and pull back the sliding sleeve 214. The lever 27 moves in the opposite direction along the movable groove 26 and the arc-shaped guide groove 215. The sliding rod 1 211 pulls the sealing plate 212 inward. The sliding rod 213 slides in the opposite direction in the short sliding groove 210. The six sets of sealing plates 212 close again, restoring the sealing state, preventing medium leakage and improving the efficiency of medium replacement.
[0027] 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.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat exchanger for preventing media leakage, comprising a tube body (1) and a support (3), characterized in that: The two ends of the tube body (1) are fixedly connected to the connecting seat (4) by bolts. The surface of the connecting seat (4) is fixedly connected to the connecting pipe (5). The inside of the tube body (1) is fixedly connected to the heat exchange tube (7) and the medium tube (8). It also includes a control component (2) to prevent leakage of the medium in the medium tube (8) during replacement; The control component (2) includes a fixed tube (21), which is fixedly connected to the inner wall of the tube body (1). A control disk (22) is fixedly connected to the surface of the fixed tube (21). An external threaded tube (23) is fixedly connected to the side of the control disk (22) away from the fixed tube (21). An internal threaded post (24) is threaded through the external threaded tube (23). A drain pipe (25) is fixedly connected to the inner side of the internal threaded post (24). A movable groove (26) is provided on the side of the control disk (22). A rotating plate (28) is rotatably connected to the inner side of the control disk (22).
2. The heat exchanger for preventing media leakage according to claim 1, characterized in that: A lever (27) is fixedly connected to the side of the rotating plate (28), the lever (27) passes through the movable groove (26), and a linkage groove (29) is opened on the surface of the rotating plate (28).
3. A heat exchanger for preventing media leakage according to claim 2, characterized in that: The linkage groove (29) is hexagonal in shape, and six sets of slide rods (211) are slidably connected to the inner side of the linkage groove (29).
4. A heat exchanger for preventing media leakage according to claim 3, characterized in that: A sealing plate (212) is fixedly connected to one end of the slide rod (211) located outside the linkage groove (29), and a slide rod (213) is fixedly connected to the other end of the sealing plate (212) away from the slide rod (211).
5. A heat exchanger for preventing media leakage according to claim 4, characterized in that: The inner surface of the control panel (22) is provided with a short slide groove (210), and the end of the slide rod (213) away from the sealing plate (212) is inserted into the inner side of the short slide groove (210).
6. A heat exchanger for preventing media leakage according to claim 4, characterized in that: The number of sealing plates (212) is six, and the six sets of sealing plates (212) are arranged in a circular array with the center line of the control disk (22) as the axis. At the same time, the initial state of the six sets of sealing plates (212) is a sealed state.
7. A heat exchanger for preventing media leakage according to claim 2, characterized in that: The outer side of the fixed tube (21) is fitted with a sliding sleeve (214), which is slidably connected to the fixed tube (21). The inner side of the sliding sleeve (214) is provided with an arc-shaped guide groove (215). The lever (27) passes through the movable groove (26) and is inserted into the inner side of the arc-shaped guide groove (215).