Split detachable heat exchanger
The design of the split and replaceable parts and the stable connection structure solve the problem of the heat exchange tubes in the heat exchanger being difficult to replace individually, and realize convenient disassembly and efficient removal of scale and residue, thereby reducing the labor intensity of workers and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU XINHENGTENG HEAT TRANSFER TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-07
AI Technical Summary
Most existing heat exchangers are designed as a single unit, and the heat exchange tubes are difficult to replace individually after long-term use, resulting in the accumulation of scale or residue, which increases the labor intensity of workers and the difficulty of disassembly and assembly.
It adopts a split and replaceable design, which allows for easy disassembly and assembly of heat exchange metal tubes through quick-release heat exchange components and heat exchange auxiliary components, using connecting flanges and bolts. The connection stability is improved by limiting installation strips and supporting connecting plates, and the air inlet chamber and heat exchange tank can be separated to facilitate the removal of residues or replacement of pipe fittings.
It simplifies the disassembly and assembly process of heat exchange metal tubes, reduces the labor intensity of workers, improves replacement efficiency and the convenience of removing scale residue, and reduces overall maintenance costs.
Smart Images

Figure CN224470883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, specifically to a detachable and replaceable heat exchanger. Background Technology
[0002] In industrial production, HVAC, energy utilization, and domestic hot water applications, heat exchangers are key devices for transferring heat between media at different temperatures. Their performance efficiency, ease of maintenance, and service life directly affect the overall energy consumption and operating costs of the system. Traditional heat exchangers mostly adopt an integrated structural design, where the core heat exchange components (such as plate heat exchange fins, shell-and-tube heat exchange tubes, etc.) are fixedly integrated with the shell, connecting pipes, etc., forming an inseparable whole.
[0003] A search revealed that this utility model relates to the field of single crystal furnace technology, specifically a detachable heat exchanger. The heat exchanger body includes a fixing component and a replacement component located below the fixing component. The fixing component and the replacement component are detachably connected. The fixing component has a first heat exchange chamber, and the replacement component has a second heat exchange chamber. It also includes a first cooling water pipe communicating with the first heat exchange chamber and a second cooling water pipe communicating with the second heat exchange chamber. This utility model, through its detachable heat exchanger, allows for replacement of only the easily damaged replacement component at the bottom without replacing the fixing component. This not only reduces replacement costs but also significantly improves production efficiency. The first cooling water pipe communicates with the first heat exchange chamber, and the second cooling water pipe communicates with the second heat exchange chamber, allowing for replacement operations without interrupting the cooling water flow, further reducing replacement time and improving production efficiency.
[0004] The heat exchangers in the aforementioned patents still have some shortcomings. Since most existing heat exchangers are designed as a single unit, scale or residue will accumulate on the walls of the heat exchange tubes during long-term use. As a single unit, it is difficult to replace the heat exchange tubes separately, making disassembly and assembly more troublesome and greatly increasing the labor intensity of workers. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a detachable heat exchanger, which solves the problem that most existing heat exchangers are designed as a single unit. During long-term use, scale or residue will accumulate on the walls of the heat exchange tubes. As a single unit heat exchanger, it is difficult to replace the heat exchange tubes separately, and the disassembly and assembly are more troublesome, which greatly increases the labor intensity of workers.
[0006] This utility model provides the following technical solution: a split and replaceable heat exchanger, including a supporting base plate, a quick-release heat exchange assembly is provided on the supporting base plate, and a heat exchange auxiliary assembly is provided on the top of the quick-release heat exchange assembly;
[0007] The quick-release heat exchange assembly includes a heat exchange tank. Air inlets are symmetrically arranged at both ends of the heat exchange tank. Each air inlet has an external hot steam pipe at its end. The two air inlets are connected by several heat exchange metal pipes. Two sets of limiting installation strips are symmetrically fixed to the side of the two air inlets. A first connecting flange is provided on each air inlet. Installation limiting grooves are evenly distributed around the inner wall of the heat exchange tank. Two second connecting flanges are symmetrically fixed at both ends of the heat exchange tank. The second connecting flanges and the first connecting flanges are connected by several evenly distributed connecting bolts. A fixing nut is fitted to the end of each connecting bolt. A drain pipe is provided at the bottom of the heat exchange tank, and a first valve is provided on the drain pipe.
[0008] The heat exchange auxiliary component includes a cold water tank disposed on the top of the heat exchange tank, an inlet pipe connected to one end of the cold water tank, and a delivery pipe connecting the bottom end of the cold water tank to the heat exchange tank.
[0009] Preferred technical solution 1: A second valve is provided on the conveying pipe, and a slag discharge pipe is connected to the side of the conveying pipe.
[0010] Preferred technical solution 2: A third valve is provided on the slag discharge pipe, and the cold water tank and the heat exchange tank are fixedly connected by a supporting connecting plate.
[0011] Preferred technical solution 3: The longitudinal section of the supporting base plate is I-shaped.
[0012] This solution can effectively enhance the support stability of the base plate for the heat exchange tank.
[0013] Preferred technical solution four: The end of the limiting installation strip is in the shape of an arc that matches the installation limiting groove.
[0014] This solution allows the air inlet chamber to be inserted at the end of the heat exchange tank, and its position is limited by the sliding insertion of the limiting installation strip into the installation limiting groove, making the connection more precise and stable.
[0015] Preferred technical solution five: Both the upper and lower sides are arc-shaped.
[0016] This design allows for a better fit with the outer walls of the cold water tank and heat exchange tank, resulting in a more stable connection.
[0017] Compared with the prior art, this utility model provides a split and replaceable heat exchanger with the following advantages: This utility model has a quick-release heat exchange assembly and a heat exchange auxiliary assembly set on the support base plate. The air inlet chamber and heat exchange metal tube in the quick-release heat exchange assembly can be aligned with the first connecting flange and the second connecting flange on the heat exchange tank. Then, the first connecting flange and the second connecting flange are connected by several connecting bolts, which makes the subsequent disassembly and assembly of the air inlet chamber and heat exchange metal tube in the heat exchange tank more convenient. This also makes it easier to clean the residue left on the surface of the heat exchange metal tube and to replace the air inlet chamber and heat exchange metal tube. The overall disassembly and assembly is more convenient, which greatly reduces the labor intensity of workers. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 For the present utility model Figure 1 Enlarged view of the structure of the central conveying pipe;
[0020] Figure 3 For the present utility model Figure 1 Internal structural diagram of the fast-release heat exchanger assembly;
[0021] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the first connecting flange.
[0022] In the diagram: 1. Support base plate; 2. Quick-release heat exchange assembly; 3. Heat exchange auxiliary assembly;
[0023] 201. Heat exchanger tank; 202. Air inlet chamber; 203. Hot steam external pipe; 204. Heat exchange metal pipe; 205. Limiting installation strip; 206. First connecting flange; 207. Installation limit groove; 208. Second connecting flange; 209. Connecting bolt; 210. Fixing nut; 211. Drain pipe; 212. First valve;
[0024] 301. Cold water tank; 302. Inlet pipe; 303. Delivery pipe; 304. Second valve; 305. Slag discharge pipe; 306. Third valve; 307. Support connecting plate. Detailed Implementation
[0025] Please see Figure 1-4 ,
[0026] Example 1: A split and replaceable heat exchanger includes a support base plate 1, a quick-release heat exchange assembly 2 is provided on the support base plate 1, and a heat exchange auxiliary assembly 3 is provided on the top of the quick-release heat exchange assembly 2.
[0027] The quick-release heat exchange assembly 2 includes a heat exchange tank 201. Air inlet chambers 202 are symmetrically arranged at both ends of the heat exchange tank 201. Each end of the air inlet chamber 202 is equipped with a hot steam external pipe 203. The two air inlet chambers 202 are connected by several heat exchange metal pipes 204. Two sets of limiting installation strips 205 are symmetrically fixed to the side of the two air inlet chambers 202. A first connecting flange 206 is provided on the air inlet chamber 202. Installation limiting grooves 207 are evenly distributed around the inner wall of the heat exchange tank 201. Two second connecting flanges 208 are symmetrically fixed at both ends of the heat exchange tank 201. The second connecting flanges 208 and the first connecting flanges 206 are connected by several evenly distributed connecting bolts 209. Each end of the connecting bolts 209 is fitted with a fixing nut 210. A drain pipe 211 is provided at the bottom of the heat exchange tank 201, and a first valve 212 is provided on the drain pipe 211.
[0028] The heat exchange auxiliary component 3 includes a cold water tank 301 disposed on top of the heat exchange tank 201. The end of the cold water tank 301 is connected to a water inlet pipe 302. The bottom end of the cold water tank 301 is connected to the heat exchange tank 201 through a conveying pipe 303. A second valve 304 is disposed on the conveying pipe 303. A slag discharge pipe 305 is connected to the side of the conveying pipe 303. A third valve 306 is disposed on the slag discharge pipe 305. The cold water tank 301 and the heat exchange tank 201 are fixedly connected by a supporting connecting plate 307.
[0029] Example 2: The difference between this example and Example 1 is that the longitudinal section of the supporting base plate 1 is I-shaped.
[0030] This effectively enhances the support stability of the base plate 1 to the heat exchange tank 201.
[0031] Example 3: The difference between this example and Example 1 is that the end of the limiting installation strip 205 is an arc shape that matches the installation limiting groove 207.
[0032] This allows the air inlet chamber 202 to be inserted at the end of the heat exchange tank 201, and its position is limited by the sliding insertion of the limiting installation strip 205 into the installation limiting groove 207, making the connection more precise and stable.
[0033] Example 4: The difference between this example and Example 1 is that the upper and lower sides of the support connecting plate 307 are both arc-shaped.
[0034] This allows the support connecting plate 307 to better fit against the outer walls of the cold water tank 301 and the heat exchange tank 201, making the connection more stable.
[0035] In this embodiment, since most existing heat exchangers are designed as a single unit, and scale or residue will accumulate on the walls of the heat exchange tubes during long-term use, it is difficult to replace the heat exchange tubes separately in a single-unit heat exchanger. Disassembly and assembly are more troublesome, which greatly increases the labor intensity of workers.
[0036] In summary, during specific implementation, when the heat exchange metal tube 204 in the quick-release heat exchange assembly 2 accumulates scale or residue on its inner wall after prolonged use, the user can pull out several connecting bolts 209 inserted between the first connecting flange 206 and the second connecting flange 208 on the air inlet chamber 202, so that the air inlet chamber 202 is no longer connected to the heat exchange tank 201. At this time, the user can pull the air inlet chamber 202 out of the heat exchange tank 201. Since there are two sets of limiting installation strips 205 between the two air inlet chambers 202, the air inlet chamber 202 can be pulled out of the heat exchange tank 201.
[0037] The limiting installation strip 205 slides in the installation limiting groove 207, making the air inlet chamber 202 more stable when it is pulled out of the heat exchange tank 201. This prevents the heat exchange metal tube 204 connected to the air inlet chamber 202 from tilting and being bumped, allowing the heat exchange metal tube 204 to be removed from the heat exchange tank 201 more quickly and stably. It also allows for the separate removal of residues from the surface of the heat exchange metal tube 204 between the air inlet chambers 202, or the replacement of the air inlet chamber 202 and the heat exchange metal tube 204. This makes disassembly and assembly more convenient and greatly reduces the workload of workers.
[0038] The cold water tank 301 in the heat exchange auxiliary component 3 is separately set on the heat exchange tank 201, which makes it more convenient for users to control the cold water entering the heat exchange tank 201 and to better control the cold water entering the heat exchange tank 201 through the delivery pipe 303, preventing the cold water from entering the heat exchange tank 201 too quickly or in excessive amounts. The hot steam flowing into the heat exchange metal pipe 204 through the hot steam external pipe 203 can exchange energy with the cold water entering the heat exchange tank 201 through heat transfer, thereby realizing the heat exchange function. After heat exchange, the cold water becomes warm water that meets the user's usage conditions and is discharged through the drain pipe 211 for the user's use.
Claims
1. A detachable heat exchanger, comprising a supporting base plate (1), characterized in that: A quick-release heat exchange assembly (2) is provided on the support base plate (1), and a heat exchange auxiliary assembly (3) is provided on the top of the quick-release heat exchange assembly (2); The quick-release heat exchange assembly (2) includes a heat exchange tank (201). Air inlets (202) are symmetrically arranged at both ends of the heat exchange tank (201). Each air inlet (202) has a hot steam external pipe (203) at its end. The two air inlets (202) are connected by several heat exchange metal pipes (204). Two sets of limiting mounting strips (205) are symmetrically fixed to the sides of the two air inlets (202). A first connecting flange (206) is provided on each air inlet (202). The heat exchange tank (201)... 1) The inner wall is evenly provided with installation limiting grooves (207) around its perimeter. Two second connecting flanges (208) are symmetrically fixed at both ends of the heat exchange tank (201). The second connecting flanges (208) and the first connecting flanges (206) are connected by a number of evenly arranged connecting bolts (209). The ends of the connecting bolts (209) are all fitted with fixing nuts (210). A drain pipe (211) is provided at the bottom of the heat exchange tank (201). A first valve (212) is provided on the drain pipe (211). The heat exchange auxiliary component (3) includes a cold water tank (301) disposed on the top of the heat exchange tank (201). The end of the cold water tank (301) is connected to a water inlet pipe (302). The bottom end of the cold water tank (301) is connected to the heat exchange tank (201) through a conveying pipe (303).
2. The detachable heat exchanger according to claim 1, characterized in that: A second valve (304) is provided on the conveying pipe (303), and a slag discharge pipe (305) is connected to the side of the conveying pipe (303).
3. A split-type replaceable heat exchanger according to claim 2, characterized in that: A third valve (306) is provided on the slag discharge pipe (305), and the cold water tank (301) and the heat exchange tank (201) are fixedly connected by a supporting connecting plate (307).
4. A split-type replaceable heat exchanger according to claim 3, characterized in that: The longitudinal section of the supporting base plate (1) is I-shaped.
5. A split-type replaceable heat exchanger according to claim 4, characterized in that: The end of the limiting installation strip (205) is in an arc shape that matches the installation limiting groove (207).
6. A split-type replaceable heat exchanger according to claim 5, characterized in that: Both the upper and lower sides of the 307 are arc-shaped.