Modularized integrated heat exchanger set

By using modularly designed plug-in rods and positioning sleeves, along with sealing rings, the problem of inconvenient replacement and maintenance of integrated heat exchangers is solved, enabling rapid disassembly and assembly and stable connection, thereby improving assembly efficiency and equipment operation safety.

CN224261969UActive Publication Date: 2026-05-19ZIBO WANHUA MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIBO WANHUA MASCH EQUIP CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The high degree of integration in existing integrated heat exchangers means that when replacing the heat exchange unit, the components of the cold circulation system must be disassembled simultaneously, and maintenance tools are difficult to access the interior, resulting in high replacement costs and low efficiency.

Method used

The modular design allows for the initial positioning of the heat exchanger and the housing through the insertion of a plug rod and a positioning sleeve. Combined with the use of sealing rings and fixing bolts, the connection stability and sealing performance are ensured, forming a modular integrated heat exchanger assembly.

Benefits of technology

It enables rapid disassembly and assembly of heat exchangers and stable connection, prevents components from loosening, improves assembly efficiency and equipment operation safety, and ensures refrigeration efficiency and system stability.

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Abstract

The utility model discloses a modularized integrated heat exchanger set, and belongs to the technical field of heat exchangers. The modular integrated heat exchanger set comprises a heat exchange mechanism and a circulation mechanism, the heat exchange mechanism comprises a heat exchanger, one end of the heat exchanger is provided with a pair of heating medium pipes and a pair of refrigerant pipes, the outer side of one end of each refrigerant pipe is sleeved with a threaded connector, a connecting plug is inserted in the center of each threaded connector, and one end of each connecting plug is communicated with the corresponding refrigerant pipe; the circulating mechanism comprises a box body, one end of the box body is provided with a pair of connecting pipes, the outer side of one end of each connecting pipe is provided with a plurality of sliding grooves, one end of each connecting pipe is sleeved with a limiting sleeve, the bottom end of the inner side wall of each limiting sleeve is slidably connected with the corresponding sliding groove, and one end of each limiting sleeve is rotationally sleeved with a locking head. According to the heat exchanger set, the practicability of the heat exchanger set can be effectively improved, and the heat exchanger set has high practical value.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a modular integrated heat exchanger assembly. Background Technology

[0002] Integrated heat exchangers typically rigidly integrate the cold circulation system and the heat exchange unit within the same shell or frame, forming a closed, integrated structure.

[0003] Based on the above, the following problems were found: When the heat exchange unit of an integrated heat exchanger needs to be replaced as a whole, the high integration of the existing design leads to a significant increase in replacement costs. The integrated design of the cold circulation system and the heat exchange unit means that when replacing the heat exchange unit, the associated cold circulation components must be disassembled and installed simultaneously. Furthermore, the piping layout of the cold circulation system in the integrated heat exchanger often causes spatial interference with the flow channels of the heat exchange unit, making it difficult for maintenance tools to reach inside for work.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a modular integrated heat exchanger assembly in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this utility model is to provide a modular integrated heat exchanger assembly to solve the problem of inconvenient replacement and maintenance of existing integrated heat exchanger assemblies mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A modular integrated heat exchanger assembly includes a heat exchange mechanism and a circulation mechanism. The heat exchange mechanism includes a heat exchanger, with a pair of heat medium pipes and a pair of refrigerant pipes respectively installed at one end of the heat exchanger. A threaded connector is sleeved on the outer side of one end of the refrigerant pipe, and a plug is inserted at the center of the threaded connector. One end of the plug communicates with the refrigerant pipe. The circulation mechanism includes a housing, with a pair of connecting pipes installed at one end of the housing. Several sliding grooves are formed on the outer side of one end of the connecting pipe. A limiting sleeve is sleeved on one end of the connecting pipe, and the bottom end of the inner sidewall of the limiting sleeve is slidably connected to the sliding groove. A locking head is rotatably sleeved on one end of the limiting sleeve, and one end of the plug is inserted into one end of the connecting pipe. The locking head is threadedly connected to the threaded connector.

[0008] Furthermore, a pair of insert rods are fixedly installed at both ends of the heat exchanger, and a pair of positioning sleeves are installed at both ends of the housing, with the insert rods and positioning sleeves being inserted into each other.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the insertion rod and the positioning sleeve are inserted to quickly achieve the initial positioning of the heat exchanger and the housing, providing a foundation for subsequent fixing, avoiding component misalignment during installation, and improving assembly efficiency.

[0010] Furthermore, fixing bolts are movably inserted into the outer side of the positioning sleeve, and the fixing bolts are threadedly connected to the outer side of one end of the insertion rod.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the fixing bolt passes through the positioning sleeve and is threadedly connected to the insertion rod, which firmly fixes the heat exchanger to the box body, prevents the components from loosening due to vibration during operation, and ensures the stability and reliability of the heat exchanger group structure.

[0012] Furthermore, a sealing ring is fitted on the outer side of each connector, one side of which is connected to the inner side of the threaded connector, and the other side of which abuts against one end of the connecting pipe.

[0013] The beneficial effects of adopting the above-mentioned further solution are that the sealing ring fits tightly against the threaded connector and the connecting pipe, forming a seal at the insertion point of the connector and the connecting pipe, effectively preventing refrigerant leakage, maintaining stable pressure in the circulation system, and ensuring refrigeration efficiency and safe operation of the equipment.

[0014] Furthermore, a condenser is fixedly installed on one side of the housing, and a compressor is fixedly installed at the bottom of the interior of the housing.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that the compressor compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure gas to provide power for the refrigeration cycle, and the condenser dissipates heat and condenses the high-temperature, high-pressure refrigerant gas into a liquid, releasing heat to the external environment and completing the refrigerant phase change.

[0016] Furthermore, a drying filter is fixedly installed on one side of the inner top of the box, and an expansion valve is fixedly installed on the other side of the inner top of the box.

[0017] The beneficial effects of adopting the above-mentioned further solutions are that the dryer filter removes moisture and impurities from the refrigerant liquid, prevents ice blockage or pipe blockage in the refrigeration system, ensures smooth circulation, extends equipment life, and the expansion valve throttles and reduces the pressure of the high-pressure refrigerant liquid, turning it into a low-temperature, low-pressure gas-liquid mixture, creating conditions for the evaporator to absorb heat and evaporate.

[0018] Furthermore, the output end of the compressor is connected to the input end of the condenser via a pipe, and the output end of the condenser is connected to the input end of the dryer filter.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that the compressor, condenser, and dryer filter are connected in sequence through pipes to form the first half of a complete refrigeration cycle, which gradually condenses and dries the high-temperature and high-pressure gas discharged from the compressor, preparing for subsequent throttling and evaporative refrigeration.

[0020] Furthermore, the output end of the dryer filter is connected to one end of the expansion valve via a pipe, and the other end of the expansion valve is connected to the input end of the compressor via pipes to one end of a pair of connecting pipes respectively.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the dryer filter, expansion valve and compressor form a closed loop through the connecting pipe. The low-temperature and low-pressure refrigerant after being depressurized by the expansion valve enters the heat exchanger to absorb heat, and then returns to the compressor to complete the cycle, thereby achieving continuous cooling and heat exchange.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: In this modular integrated heat exchanger assembly, the heat exchanger of the heat exchange mechanism achieves heat exchange through heat medium pipes and refrigerant pipes. The plug-in joint and threaded connector cooperate with the connecting pipe and locking head of the circulation mechanism to achieve quick assembly and disassembly. The compressor, condenser, dryer filter and expansion valve of the circulation mechanism constitute a refrigeration cycle system to provide a cold source for heat exchange. The limiting sleeve and sliding groove ensure connection stability, the sealing ring prevents refrigerant leakage, and ensures heat exchange efficiency and system safety. The plug rod and positioning sleeve are plugged in to quickly achieve the initial positioning of the heat exchanger and the box, providing a foundation for subsequent fixing, avoiding component misalignment during installation, improving assembly efficiency, and the fixing bolt passes through the positioning sleeve and the plug rod threaded connection to firmly fix the heat exchanger to the box, preventing the components from loosening due to vibration during operation and ensuring the structural stability and reliability of the heat exchanger assembly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the modular integrated heat exchanger assembly disclosed in an embodiment of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the modular integrated heat exchanger assembly disclosed in an embodiment of the present utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the heat exchange mechanism of the modular integrated heat exchanger assembly disclosed in an embodiment of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the circulation mechanism of the modular integrated heat exchanger assembly disclosed in an embodiment of this utility model;

[0027] Figure 5 This is a three-dimensional unfolded schematic diagram of the connecting pipes and refrigerant pipes of the modular integrated heat exchanger assembly disclosed in this utility model embodiment.

[0028] In the diagram: 1. Heat exchange mechanism; 101. Heat exchanger; 102. Insert rod; 103. Heat medium pipe; 104. Refrigerant pipe; 105. Threaded connector; 106. Sealing ring; 107. Insert connector; 2. Circulation mechanism; 201. Housing; 202. Positioning sleeve; 203. Connecting pipe; 204. Locking head; 205. Compressor; 206. Dryer filter; 207. Condenser; 208. Fixing bolt; 209. Expansion valve; 210. Limiting sleeve; 211. Slide groove. Detailed Implementation

[0029] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Please see Figures 1-5 This utility model provides a technical solution: a modular integrated heat exchanger assembly, including a heat exchange mechanism 1 and a circulation mechanism 2. The heat exchange mechanism 1 includes a heat exchanger 101, with a pair of heat medium pipes 103 and a pair of refrigerant pipes 104 respectively installed at one end of the heat exchanger 101. A threaded connector 105 is sleeved on the outer side of one end of the refrigerant pipe 104, and a plug 107 is inserted at the center of the threaded connector 105, with one end of the plug 107 communicating with the refrigerant pipe 104. The circulation mechanism 2 includes a housing 201, with a pair of connecting pipes 203 installed at one end of the housing 201. Several sliding grooves 211 are opened on the outer side of one end of the connecting pipes 203, and a limiting sleeve 210 is sleeved on one end of the connecting pipes 203. The bottom end of the inner side wall of the limiting sleeve 210 slides against the sliding groove 211. The limiting sleeve 210 is rotatably fitted with a locking head 204 at one end. One end of the plug 107 is inserted into one end of the connecting pipe 203. The locking head 204 is threadedly connected to the threaded connector 105. The heat exchanger 101 of the heat exchange mechanism 1 achieves heat exchange through the heat medium pipe 103 and the refrigerant pipe 104. The plug 107 and the threaded connector 105 cooperate with the connecting pipe 203 and the locking head 204 of the circulation mechanism 2 to achieve quick assembly and disassembly. The compressor 205, condenser 207, dryer filter 206 and expansion valve 209 of the circulation mechanism 2 constitute a refrigeration cycle system to provide a cold source for heat exchange. The limiting sleeve 210 and the slide groove 211 ensure connection stability. The sealing ring 106 prevents refrigerant leakage and ensures heat exchange efficiency and system safety.

[0032] Please see Figures 1-5A pair of insert rods 102 are fixedly installed at both ends of the heat exchanger 101, and a pair of positioning sleeves 202 are installed at both ends of the housing 201. The insert rods 102 and the positioning sleeves 202 are inserted into each other. Fixing bolts 208 are movably inserted into the outer side of the positioning sleeves 202. The fixing bolts 208 are threaded to the outer side of one end of the insert rod 102. A sealing ring 106 is fitted on the outer side of the plug joint 107. One side of the sealing ring 106 is connected to the inner side of the threaded connector 105, and the other side of the sealing ring 106 abuts against one end of the connecting pipe 203. The insert rods 102 are inserted into the positioning sleeves 202, quickly realizing the connection between the heat exchanger 101 and the positioning sleeves 202. The initial positioning of the heat exchanger 101 with the housing 201 provides a foundation for subsequent fixing, avoids component misalignment during installation, and improves assembly efficiency. The fixing bolt 208 passes through the positioning sleeve 202 and is threadedly connected to the insertion rod 102, firmly fixing the heat exchanger 101 to the housing 201. This prevents components from loosening due to vibration during operation and ensures the stability and reliability of the heat exchanger assembly structure. The sealing ring 106 tightly fits the threaded connector 105 and the connecting pipe 203, forming a seal at the insertion point of the insertion joint 107 and the connecting pipe 203, effectively preventing refrigerant leakage, maintaining stable pressure in the circulation system, and ensuring refrigeration efficiency and safe operation of the equipment.

[0033] Please see Figures 1-5A condenser 207 is fixedly installed on one side of the housing 201. A compressor 205 is fixedly installed at the bottom inside the housing 201. A dryer filter 206 is fixedly installed on one side of the top inside the housing 201, and an expansion valve 209 is fixedly installed on the other side of the top inside the housing 201. The output end of the compressor 205 is connected to the input end of the condenser 207 via a pipe. The output end of the condenser 207 is connected to the input end of the dryer filter 206. The output end of the dryer filter 206 is connected to one end of the expansion valve 209 via a pipe. The other end of the expansion valve 209 and the input end of the compressor 205 are connected to one end of a pair of connecting pipes 203 via pipes. The compressor 205 compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure gas, providing power for the refrigeration cycle. The condenser 207 dissipates heat and condenses the high-temperature, high-pressure refrigerant gas into a liquid, releasing heat to... The external environment facilitates the refrigerant phase change. The dryer filter 206 removes moisture and impurities from the refrigerant liquid, preventing ice blockage or pipe blockage in the refrigeration system, ensuring smooth circulation, and extending equipment life. The expansion valve 209 throttles and reduces the pressure of the high-pressure refrigerant liquid, turning it into a low-temperature, low-pressure gas-liquid mixture, creating conditions for the evaporator to absorb heat and evaporate. The compressor 205, condenser 207, and dryer filter 206 are connected sequentially through pipes, forming the first half of the complete refrigeration cycle. The high-temperature, high-pressure gas discharged from the compressor 205 is gradually condensed and dried, preparing for subsequent throttling and evaporative refrigeration. The dryer filter 206, expansion valve 209, and compressor 205 form a closed loop through the connecting pipe 203. The low-temperature, low-pressure refrigerant, after being depressurized by the expansion valve 209, enters the heat exchanger 101 to absorb heat and then returns to the compressor 205 to complete the cycle, achieving continuous refrigeration and heat exchange.

[0034] Working principle

[0035] In use, first insert the insertion rod 102 of the heat exchanger 101 into the positioning sleeve 202 of the housing 201 for initial positioning, and then use the fixing bolt 208 to firmly connect the two. At the same time, insert the connector 107 of the heat exchange mechanism 1 into the connecting pipe 203 of the circulation mechanism 2, rotate the limiting sleeve 210 to make it slide into place along the slide groove 211, and then rotate the locking head 204 to connect with the threaded connector 105. At the same time, the sealing ring 106 forms a seal at the connection to prevent refrigerant leakage. In the circulation mechanism 2, the compressor 205 circulates the low-temperature, low-pressure refrigerant. The refrigerant gas is compressed into a high-temperature, high-pressure gas, which is then sent through a pipeline to the condenser 207 to dissipate heat and condense into a liquid. It then passes through a dryer filter 206 to remove moisture and impurities. Subsequently, it is throttled and depressurized by an expansion valve 209 into a low-temperature, low-pressure gas-liquid mixture, which enters the refrigerant pipe 104 of the heat exchanger 101 through a connecting pipe 203. Inside the heat exchanger 101, the low-temperature, low-pressure refrigerant exchanges heat with the heat medium in the heat medium pipe 103. After absorbing heat, the refrigerant evaporates and becomes a gas, which then returns to the compressor 205. This cycle repeats continuously, achieving continuous refrigeration and heat exchange.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not a limitation on the scope of protection of the present utility model. Based on the technical solution of the present utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present utility model.

Claims

1. A modular integrated heat exchanger assembly, characterized in that, The system includes a heat exchange mechanism (1) and a circulation mechanism (2). The heat exchange mechanism (1) includes a heat exchanger (101), one end of which is respectively equipped with a pair of heat medium pipes (103) and a pair of refrigerant pipes (104). A threaded connector (105) is sleeved on the outer side of one end of the refrigerant pipe (104), and a plug (107) is inserted at the center of the threaded connector (105). One end of the plug (107) is connected to the refrigerant pipe (104). The circulation mechanism (2) includes a housing (201). A pair of connecting pipes (203) are installed at one end of the connecting pipe (201). Several sliding grooves (211) are opened on the outer side of one end of the connecting pipe (203). A limiting sleeve (210) is fitted on one end of the connecting pipe (203). The bottom end of the inner side wall of the limiting sleeve (210) is slidably connected to the sliding groove (211). A locking head (204) is rotatably fitted on one end of the limiting sleeve (210). One end of the plug (107) is inserted into one end of the connecting pipe (203). The locking head (204) is threadedly connected to the threaded connector (105).

2. The modular integrated heat exchanger assembly according to claim 1, characterized in that, A pair of insert rods (102) are fixedly installed at both ends of the heat exchanger (101), and a pair of positioning sleeves (202) are installed at both ends of the housing (201). The insert rods (102) and the positioning sleeves (202) are inserted into each other.

3. The modular integrated heat exchanger assembly according to claim 2, characterized in that, The outer side of the positioning sleeve (202) is movably inserted with fixing bolts (208), and the fixing bolts (208) are threadedly connected to the outer side of one end of the insertion rod (102).

4. The modular integrated heat exchanger assembly according to claim 1, characterized in that, Each of the plugs (107) is fitted with a sealing ring (106) on its outer side. One side of the sealing ring (106) is connected to the inner side of the threaded connector (105), and the other side of the sealing ring (106) abuts against one end of the connecting pipe (203).

5. A modular integrated heat exchanger assembly according to claim 1, characterized in that, A condenser (207) is fixedly installed on one side of the housing (201), and a compressor (205) is fixedly installed at the bottom inside the housing (201).

6. A modular integrated heat exchanger assembly according to claim 5, characterized in that, A drying filter (206) is fixedly installed on one side of the inner top of the housing (201), and an expansion valve (209) is fixedly installed on the other side of the inner top of the housing (201).

7. A modular integrated heat exchanger assembly according to claim 6, characterized in that, The output end of the compressor (205) is connected to the input end of the condenser (207) via a pipe, and the output end of the condenser (207) is connected to the input end of the dryer filter (206).

8. A modular integrated heat exchanger assembly according to claim 7, characterized in that, The output end of the dryer filter (206) is connected to one end of the expansion valve (209) through a pipe, and the other end of the expansion valve (209) is connected to the input end of the compressor (205) through a pipe to one end of a pair of connecting pipes (203).