Energy-saving heat exchange device of refrigerating unit
By using heat insulation pipes, clamps, fastening screws, annular heat transfer pipes, and baffles in the energy-saving heat exchange device of the refrigeration unit, as well as an electric regulating valve, the problem of heat loss caused by heat conduction is solved, achieving efficient and energy-saving operation and improving refrigeration efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN SECCO TRADING CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-15
AI Technical Summary
Existing energy-saving heat exchange devices for refrigeration units suffer from heat loss due to heat conduction through the shell during operation, resulting in low heat exchange efficiency and increased power consumption, thus failing to achieve efficient and energy-saving operation.
The shell is covered with heat-insulating tubes on both sides and fixed by clamps and fastening screws. Combined with the design of annular heat transfer tubes and baffles, the heat transfer efficiency is enhanced. At the same time, an electric regulating valve is installed at the cold fluid inlet to precisely control the flow rate.
It effectively reduces heat loss, improves energy utilization efficiency, ensures efficient heat exchange, reduces energy consumption, and meets the cooling effect requirements under different operating conditions.
Smart Images
Figure CN224246830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration equipment technology, specifically to an energy-saving heat exchange device for refrigeration units. Background Technology
[0002] In existing refrigeration units, the heat exchange device is a key component, and its performance directly affects the energy consumption and cooling effect of the entire refrigeration system.
[0003] However, existing energy-saving heat exchange devices for refrigeration units still have certain problems in use:
[0004] In the operation of existing heat exchange devices, due to the conduction of heat, some heat is dissipated to the outside through the shell during the heat transfer process, resulting in heat loss and low heat exchange efficiency. This further causes the refrigeration unit to consume more electricity to achieve the expected cooling effect, and it cannot achieve efficient and energy-saving operation.
[0005] Therefore, we propose an energy-saving heat exchange device for refrigeration units to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide an energy-saving heat exchange device for refrigeration units, in order to solve the problem mentioned in the background art that, during the use of the heat exchange device, due to the conduction of heat, some heat will be dissipated to the outside through the shell during the heat transfer process, resulting in heat loss and low heat exchange efficiency. This further leads to the refrigeration unit needing to consume more electrical energy to achieve the expected cooling effect, thus failing to achieve efficient and energy-saving operation.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving heat exchange device for a refrigeration unit, comprising a first tube box, a cold fluid inlet, a cold fluid outlet, and a partition plate. The upper end face of the first tube box is connected to the cold fluid inlet, the lower end face of the first tube box is connected to the cold fluid outlet, and a partition plate is welded to the middle of the first tube box.
[0008] A fixing flange is bolted to one side of the first pipe box, and a housing is bolted to one side of the fixing flange. A first heat insulation pipe is covered on one side of the outer surface of the housing, and a second heat insulation pipe is covered on the other side of the housing. A first clamping plate is fitted on the outer surface of the first heat insulation pipe, and a second clamping plate corresponding to the first clamping plate is fitted on the outer surface of the second heat insulation pipe. Fastening screws are threaded through the upper and lower ends of the first and second clamping plates, and two sets of the first and second clamping plates are arranged along the outer surface of the heat insulation pipe.
[0009] Using the above technical solution, the first tube box allows cold fluid to flow through a cold fluid inlet and outlet, and is separated in the middle by a partition plate. One side of the partition plate is connected to the shell via a fixed flange. The first and second heat insulation tubes outside the shell are respectively fitted with first and second clamping plates, which are connected by fastening screws at the upper and lower ends. The clamping force of the clamping plates on the heat insulation tubes can be adjusted to achieve orderly flow of cold fluid in the first tube box. The structure of the heat insulation tubes and clamping plates can not only provide heat insulation for the shell and reduce heat loss, but also ensure the stability of the heat insulation tubes through the fastening of the clamping plates, thus ensuring the efficient operation of the energy-saving heat exchange device of the refrigeration unit.
[0010] Preferably, a hot fluid outlet is connected to the upper outer surface of the housing, a hot fluid inlet is connected to the lower outer surface of the housing, and a second pipe box is provided on one side of the housing. The connection between the second pipe box and the housing is fastened by a connecting flange thread.
[0011] Using the above technical solution, the hot fluid enters the shell from the hot fluid inlet, completes the heat exchange inside the shell, and then flows out from the hot fluid outlet. The second pipe box is connected to the shell by a connecting flange and threaded fastening, ensuring that the connection between the two is tight and detachable. This realizes the heat exchange between the hot fluid and the cold fluid inside the shell, ensuring the heat transfer function of the energy-saving heat exchange device of the refrigeration unit. The threaded fastening method of the connecting flange facilitates the installation, maintenance and repair of the equipment.
[0012] Preferably, a connecting tube sheet is bolted between the flange of the second tube box and the flange of the shell, and a fixing tube sheet is bolted between the flange of the first tube box and the flange of the shell, and a plurality of heat transfer tubes are connected in flow between the connecting tube sheet and the fixing tube sheet.
[0013] By adopting the above technical solution, the connecting tube sheet and the fixed tube sheet are connected and fixed to the second tube box, the shell and the first tube box respectively by bolts. Several heat transfer tubes are connected between the two to form a heat exchange channel, so that the hot and cold fluids flow on both sides of the heat transfer tubes to transfer heat. This ensures the stable installation of the heat transfer tubes, provides an effective way for heat transfer between hot and cold fluids, realizes the efficient heat exchange function of the energy-saving heat exchange device of the refrigeration unit, and improves the energy-saving effect of the refrigeration unit.
[0014] Preferably, the heat transfer tube is designed in a ring shape, and a baffle is fixed on the outer surface of the heat transfer tube. Five sets of baffles are arranged alternately along the outer surface of the heat transfer tube, and the baffles have a trapezoidal structure.
[0015] Using the above technical solution, the heat transfer tube is designed in a ring shape, with baffles on its outer surface arranged alternately. When hot and cold fluids flow around the heat transfer tube, the baffles change the flow state of the fluid and increase the turbulence of the fluid. The ring-shaped heat transfer tube design increases the heat transfer area, and the baffles enhance the heat transfer effect of the fluid, making the heat exchange between hot and cold fluids more complete, thereby improving the energy efficiency of the refrigeration unit's energy-saving heat exchange device.
[0016] Preferably, a flange is bolted to the inlet of the cold fluid inlet, and an electric regulating valve is bolted to the top of the cold fluid inlet via the flange.
[0017] By adopting the above technical solution and installing an electric regulating valve at the cold fluid inlet, the flow rate of the cold fluid can be precisely controlled, enabling the device to better adapt to different operating conditions and improve the energy-saving effect and operational stability of the refrigeration unit's energy-saving heat exchange device.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. The first and second heat insulation pipes are respectively wrapped on both sides of the shell. The heat insulation pipes are fixed to the shell by the cooperation of the first clamp, the second clamp and the fastening screw, which reduces heat loss and improves energy utilization efficiency. The second pipe box on one side of the shell is connected to the shell by the connecting flange and threaded fastening, which ensures the overall sealing and stability of the device and ensures the efficient operation of the heat exchange process. In this way, the energy-saving heat exchange function of the refrigeration unit can be effectively realized, the refrigeration efficiency can be improved and the energy consumption can be reduced.
[0020] 2. A flange is bolted to the inlet of the cold fluid inlet, allowing for convenient and secure connection to external pipelines and ensuring smooth flow of cold fluid. Above the cold fluid inlet, an electric regulating valve is also bolted to the flange. The electric regulating valve can precisely adjust the flow rate of the cold fluid according to the actual operating conditions of the refrigeration unit. By flexibly controlling the input of cold fluid, the energy-saving heat exchange device of the refrigeration unit is always in a highly efficient operating state, achieving energy saving while meeting the requirements of refrigeration effect under different operating conditions. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;
[0022] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;
[0023] Figure 3 This is a schematic diagram of the heat transfer tube structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the first heat insulation pipe structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the external connection structure of the first pipe box, cold fluid inlet, flange, and electric regulating valve in this utility model.
[0026] In the diagram: 1. First tube box; 2. Cold fluid inlet; 3. Cold fluid outlet; 4. Divider plate; 5. Fixed flange; 6. Shell; 7. Hot fluid outlet; 8. Hot fluid inlet; 9. Second tube box; 10. Connecting flange; 11. Connecting tube sheet; 12. Fixed tube sheet; 13. Heat transfer tube; 14. Baffle plate; 15. First insulation tube; 16. Second insulation tube; 17. First clamping plate; 18. Second clamping plate; 19. Fastening screw; 20. Flange; 21. Electric regulating valve. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Please see Figures 1-5 This utility model provides a technical solution: an energy-saving heat exchange device for a refrigeration unit, including a first tube box 1, a cold fluid inlet 2, a cold fluid outlet 3, and a partition plate 4. The upper end face of the first tube box 1 is connected to the cold fluid inlet 2, and the lower end face of the first tube box 1 is connected to the cold fluid outlet 3. The partition plate 4 is welded to the middle of the first tube box 1. A fixing flange 5 is bolted to one side of the first tube box 1, and a housing 6 is bolted to one side of the fixing flange 5. A first heat insulation pipe 15 is covered on one side of the housing 6, and a second heat insulation pipe 16 is covered on the other side of the housing 6. A first clamping plate 17 is fitted on the outer surface of the first heat insulation pipe 15, and a second clamping plate 18 corresponding to the first clamping plate 17 is fitted on the outer surface of the second heat insulation pipe 16. The upper and lower ends of the first clamping plate 17 and the second clamping plate 18 are threaded and connected to fastening screws 19, and two sets of the first clamping plate 17 and the second clamping plate 18 are arranged along the outer surface of the heat insulation pipe. A hot fluid outlet 7 is connected to the upper outer surface of the shell 6, and a hot fluid inlet 8 is connected to the lower outer surface of the shell 6. A second pipe box 9 is provided on one side of the shell 6, and the connection between the second pipe box 9 and the shell 6 is fastened by a connecting flange 10.
[0029] Cold fluid flows into the first tube box 1 through the cold fluid inlet 2. The partition plate 4 in the middle of the first tube box 1 guides the flow of cold fluid, and then flows out from the cold fluid outlet 3, completing the initial distribution of cold fluid. The first tube box 1 is connected to the shell 6 through the fixed flange 5. Hot fluid enters the shell 6 through the hot fluid inlet 8, exchanges heat with the cold fluid, and then flows out from the hot fluid outlet 7, realizing the heat transfer between the cold and hot fluids. The shell 6 is covered with the first heat insulation pipe 15 and the second heat insulation pipe 16 on both sides respectively. The heat insulation pipe is fixed to the shell 6 through the cooperation of the first clamping plate 17, the second clamping plate 18 and the fastening screw 19, reducing heat loss and improving energy utilization efficiency. The second tube box 9 on one side of the shell 6 is connected to the shell 6 by the connecting flange 10 and threaded fastening, ensuring the overall sealing and stability of the device, ensuring the efficient operation of the heat exchange process, and thus effectively realizing the energy-saving heat exchange function of the refrigeration unit, improving refrigeration efficiency and reducing energy consumption.
[0030] A connecting tube sheet 11 is bolted between the flanges of the second tube box 9 and the shell 6, and a fixing tube sheet 12 is bolted between the flanges of the first tube box 1 and the shell 6. Several heat transfer tubes 13 are connected in flow between the connecting tube sheet 11 and the fixing tube sheet 12. The heat transfer tubes 13 are annular in design, and baffles 14 are fixed on the outer surface of the heat transfer tubes 13. Five sets of baffles 14 are arranged alternately along the outer surface of the heat transfer tubes 13, and the baffles 14 have a trapezoidal structure.
[0031] The second tube box 9 is bolted to the flange of the shell 6 via a connecting tube sheet 11, and the first tube box 1 is bolted to the flange of the shell 6 via a fixed tube sheet 12. Several heat transfer tubes 13 are connected between the connecting tube sheet 11 and the fixed tube sheet 12. The heat transfer tubes 13 adopt an annular design, and baffles 14 are fixed on their outer surfaces. The baffles 14 are arranged alternately up and down along the outer surface of the heat transfer tubes 13, with a total of five sets and a trapezoidal structure. The annular design of the heat transfer tubes 13 greatly increases the heat transfer area, making the heat exchange between the hot and cold fluids more complete. The baffles 14 can effectively change the flow state of the fluid around the heat transfer tubes 13. The alternating arrangement further enhances the degree of fluid disturbance, allowing the hot and cold fluids to mix and contact more fully, thereby significantly improving the heat transfer efficiency, improving the energy-saving effect of the entire refrigeration unit's energy-saving heat exchange device, and ensuring that the refrigeration unit can operate more efficiently.
[0032] A flange 20 is bolted to the inlet of the cold fluid inlet 2, and an electric regulating valve 21 is bolted to the top of the cold fluid inlet 2 via the flange 20.
[0033] The inlet of the cold fluid inlet 2 is bolted to a flange 20, which allows the cold fluid inlet 2 to be conveniently and securely connected to the external pipeline, ensuring smooth flow of cold fluid. Above the cold fluid inlet 2, an electric regulating valve 21 is also bolted to the flange 20. The electric regulating valve 21 can accurately adjust the flow rate of cold fluid according to the actual operating conditions of the refrigeration unit. By flexibly controlling the input of cold fluid, the energy-saving heat exchange device of the refrigeration unit is always in a high-efficiency operating state, achieving energy saving while meeting the requirements of refrigeration effect under different operating conditions.
[0034] Working Principle: For this type of energy-saving heat exchange device for refrigeration units, during operation, the cold fluid flows into the first tube box 1 from the cold fluid inlet 2, is guided by the middle partition plate 4, and flows out from the cold fluid outlet 3, completing the initial distribution. Then, it enters the shell 6 connected to the first tube box 1 through the fixed flange 5. Simultaneously, the hot fluid enters the shell 6 from the hot fluid inlet 8, exchanges heat with the cold fluid inside the shell 6, and flows out from the hot fluid outlet 7. The first heat insulation pipe 15 and the second heat insulation pipe 16 on both sides of the shell 6 are fixed by the first clamping plate 17, the second clamping plate 18, and the fastening screw 19, reducing heat loss and improving energy utilization. The second tube box 9 is connected by a flange... 10 is threadedly fastened to the shell 6 to ensure the sealing and stability of the device. The connecting tube sheet 11 and the fixed tube sheet 12 are respectively connected to the second tube box 9, the shell 6 and the first tube box 1. The annular heat transfer tube 13, which is connected between the two, has five sets of trapezoidal baffles 14 distributed alternately on its outer surface, which greatly increases the heat transfer area, strengthens fluid turbulence, and promotes full mixing and heat transfer of cold and hot fluids. In addition, the cold fluid inlet 2 is connected to the external pipeline through the flange 20. The electric regulating valve 21 above precisely adjusts the cold fluid flow according to the actual operating conditions of the refrigeration unit to ensure that the device always operates efficiently, and ultimately achieves energy-saving heat exchange of the refrigeration unit, improves refrigeration efficiency and reduces energy consumption.
[0035] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An energy-saving heat exchange device for a refrigeration unit, comprising a first tube box (1), a cold fluid inlet (2), a cold fluid outlet (3), and a partition plate (4), wherein the upper end face of the first tube box (1) is connected to the cold fluid inlet (2), the lower end face of the first tube box (1) is connected to the cold fluid outlet (3), and a partition plate (4) is welded to the middle of the first tube box (1), characterized in that: A fixing flange (5) is bolted to one side of the first pipe box (1), and a housing (6) is bolted to one side of the fixing flange (5). A first heat insulation pipe (15) is covered on one side of the housing (6), and a second heat insulation pipe (16) is covered on the other side of the housing (6). A first clamping plate (17) is fitted on the outer surface of the first heat insulation pipe (15), and a second clamping plate (18) corresponding to the first clamping plate (17) is fitted on the outer surface of the second heat insulation pipe (16). The upper and lower ends of the first clamping plate (17) and the second clamping plate (18) are threaded and connected to fastening screws (19). Two sets of the first clamping plate (17) and the second clamping plate (18) are arranged along the outer surface of the heat insulation pipe.
2. The energy-saving heat exchange device for a refrigeration unit according to claim 1, characterized in that: A hot fluid outlet (7) is connected to the upper outer surface of the housing (6), and a hot fluid inlet (8) is connected to the lower outer surface of the housing (6). A second pipe box (9) is provided on one side of the housing (6), and the connection between the second pipe box (9) and the housing (6) is fastened by a connecting flange (10) with threads.
3. The energy-saving heat exchange device for a refrigeration unit according to claim 2, characterized in that: A connecting tube sheet (11) is bolted between the flanges of the second tube box (9) and the shell (6), and a fixing tube sheet (12) is bolted between the flanges of the first tube box (1) and the shell (6). Several heat transfer tubes (13) are connected in flow between the connecting tube sheet (11) and the fixing tube sheet (12).
4. The energy-saving heat exchange device for a refrigeration unit according to claim 3, characterized in that: The heat transfer tube (13) is designed in a ring shape. A baffle plate (14) is fixed on the outer surface of the heat transfer tube (13). Five sets of baffle plates (14) are arranged alternately along the outer surface of the heat transfer tube (13), and the baffle plates (14) have a trapezoidal structure.
5. The energy-saving heat exchange device for a refrigeration unit according to claim 4, characterized in that: A flange (20) is bolted to the inlet of the cold fluid inlet (2), and an electric regulating valve (21) is bolted to the top of the cold fluid inlet (2) via the flange (20).