Liquid cooled evaporator
By setting an evaporation chamber on the outside of the evaporator body and staggering the baffles, the dual-mode switching of air and liquid cooling of the finned evaporator is realized, which solves the problems of low heat exchange efficiency of finned evaporators in high-temperature environments and poor compatibility of liquid cooling systems, and improves the overall energy efficiency and adaptability of the refrigeration system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HENGBING REFRIGERATION TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing finned evaporators have low heat exchange efficiency in high-temperature environments and poor compatibility with liquid cooling systems, making it difficult to meet high-load cooling demands and the economic efficiency of system integration.
A liquid-cooled evaporator is designed. By setting an evaporation chamber on the outside of the evaporator body and arranging baffles on both sides in an alternating manner, the liquid medium flows along the outside of the evaporator body. Combined with the fin and pipe structure, it can realize the switching between air and liquid cooling modes, thereby enhancing heat exchange efficiency and compatibility.
It improves heat exchange efficiency, broadens the environmental adaptability of the equipment, and can flexibly switch to liquid cooling mode in normal and high-temperature environments to meet high-load cooling needs and improve the overall energy efficiency ratio of the refrigeration system.
Smart Images

Figure CN224534535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator technology, specifically a liquid-cooled evaporator. Background Technology
[0002] Finned evaporators, as core heat exchange components of refrigeration systems, are widely used in refrigeration, air conditioning, and chemical industries. Their typical structure consists of internal flow channels and external fins. Through the flow of a medium (such as refrigerant or water) within the channels, the fins increase the heat exchange surface area, enabling heat transfer between the medium and the outside air. This structural design, combining compactness with high heat exchange efficiency, can meet the heat dissipation requirements of most scenarios under normal conditions.
[0003] However, under extreme conditions such as high temperatures in summer, the performance bottlenecks of existing finned evaporators gradually become apparent: traditional heat dissipation methods relying on air convection are significantly affected by ambient temperature. When the outside temperature is close to or higher than the medium temperature, the heat exchange efficiency drops sharply, leading to a decrease in the overall energy efficiency ratio of the refrigeration system, and even failing to meet high-load cooling demands. Compared to liquid cooling technology (such as directly using a low-temperature liquid medium for heat exchange), air cooling has a particularly prominent disadvantage in heat dissipation efficiency under high-temperature environments, resulting in problems such as slow cooling response and increased energy consumption.
[0004] Furthermore, the compatibility design of existing finned evaporators with liquid cooling systems is not yet perfect. Traditional structures are mainly optimized for air convection. If directly applied to liquid cooling scenarios, they may face technical challenges such as unreasonable heat exchange paths and increased structural complexity, making it difficult to balance efficient heat dissipation with the economics of system integration. Utility Model Content
[0005] Therefore, to address the aforementioned shortcomings, this utility model provides a liquid-cooled evaporator. This evaporator features an evaporation chamber on the outside of the evaporator body, with staggered baffles on both sides of the evaporator body. This allows liquid to continuously flow along the outside of the evaporator body, maintaining full contact between the liquid and the evaporator body. This enables the refrigerant flowing within the evaporator body to fully cool the liquid flowing inside the evaporation chamber, achieving liquid cooling. Finally, the cooled liquid is transported to the outside for use. Compared to traditional finned evaporators for air cooling, this not only effectively improves air cooling efficiency but also facilitates liquid cooling of external equipment, effectively enhancing the cooling efficiency of external devices.
[0006] This invention is achieved by constructing a liquid-cooled evaporator, including an evaporator body placed at one end of the evaporation chamber.
[0007] Several parallel baffles are staggered on both sides of the evaporator body and fixed to the inner wall of the evaporator chamber;
[0008] The first water inlet is located on the top outer side of the evaporator body at one end of the evaporation chamber.
[0009] The first drain hole is located on the side wall at the other end of the evaporation chamber.
[0010] Preferably, a temperature sensor and a heating device are also provided on the inner wall of the evaporator chamber where the first drain hole is opened, and an exhaust hole is opened at the top of the other end of the evaporator chamber.
[0011] Preferably, the heating device is an electric heating device or a steam heating device.
[0012] Preferably, the evaporator body specifically includes several parallel fins and a pipe passing through the several fins. An mounting plate is provided on the outermost fin, and the evaporator body is fixed to the inner wall of the evaporator chamber by any one of the mounting plates.
[0013] Preferably, the partition is arranged parallel to the fins, one end of the partition is fixed to the inner wall of the evaporation chamber, and the other end of the partition is fixed to the side end of any one of the fins.
[0014] Preferably, the pipe is a coil shape distributed vertically through several fins, and a second water inlet and a second drain are respectively provided at both ends of the pipe.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] This liquid-cooled evaporator upgrades the traditional air-cooling mode to a liquid-cooling-priority mode by adding an evaporation chamber structure to the outside of the evaporator body. The liquid medium flows continuously along the outside of the evaporator body within the evaporation chamber, significantly improving heat exchange efficiency due to the higher thermal conductivity of liquid compared to air.
[0017] Meanwhile, the staggered baffles arranged on both sides of the evaporator body force the liquid to form a turbulent flow path in the evaporation chamber, avoiding dead zones. This structural design significantly increases the contact area between the liquid and the evaporator body, while also extending the residence time to ensure that the liquid medium is fully cooled, thus solving the problem of local hot spots caused by uneven airflow distribution in traditional finned evaporators for air refrigeration.
[0018] Meanwhile, while retaining the air cooling function (the evaporation chamber can be an open structure in contact with air), this evaporation chamber can be flexibly switched to liquid cooling mode by sealing the evaporation chamber and connecting it to a liquid circulation pipeline. This dual-mode compatibility of air / liquid cooling allows the evaporator to meet energy-saving requirements in normal environments, while seamlessly switching to liquid cooling mode in high-temperature or high-heat-dissipation scenarios, significantly broadening the environmental adaptability of the equipment. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of the present invention (the internal structure of the evaporation chamber is also shown in this drawing for ease of illustration).
[0021] Figure 2 This is a schematic diagram of the structure of the evaporator body of this utility model;
[0022] In the diagram: 1. Evaporation chamber; 2. First water inlet; 3. First drain hole; 4. Exhaust vent; 5. Evaporator body; 501. Mounting plate; 502. Fins; 503. Pipe; 6. Baffle; 7. Heating device; 8. Temperature sensor; 9. Second water inlet; 10. Second drain hole. Detailed Implementation
[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.
[0024] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0025] As described in the background section, existing finned evaporators can only cool the outside air when the refrigerant flows through the pipes. Although the heat exchange surface area can be increased by the fins, the heat exchange and cooling efficiency cannot be guaranteed compared to liquid cooling.
[0026] Based on the above reasons, in order to solve the above problems, this utility model provides the following technical solution:
[0027] Example 1,
[0028] Please see the appendix Figure 1 A liquid-cooled evaporator includes an evaporator body 5, which is placed inside one end of an evaporation chamber 1;
[0029] Several parallel partitions 6 are staggered on both sides of the evaporator body 5 and fixed to the inner wall of the evaporation chamber 1;
[0030] The first water inlet hole 2 is located on the top outer side of the evaporator body 5, which is placed at one end of the evaporation chamber 1.
[0031] The first drain hole 3 is located on the side wall at the other end of the evaporation chamber 1.
[0032] In this embodiment, please refer to the appendix. Figure 2 The evaporator body 5 specifically includes several parallel fins 502 and a pipe 503 passing through the several fins 502. An mounting plate 501 is provided on the outermost fin 502. The evaporator body 5 is fixed to the inner wall of the evaporation chamber 1 by any one of the mounting plates 501.
[0033] To facilitate the division of the internal area of the evaporation chamber 1 into media flow channels by the partition 6, so that the liquid can fully contact the evaporator body to achieve refrigeration and improve refrigeration efficiency, in this embodiment, the partition 6 is arranged parallel to the fins 502, one side of the partition 6 is fixed to the inner wall of the evaporation chamber 1, and the other side of the partition 6 is fixed to the side of any one of the fins 502. The pipe 503 is in the shape of a coil and is distributed vertically through several fins 502. A second water inlet 9 and a second drain 10 are respectively provided at the two ends of the pipe 503.
[0034] During use, if air cooling is required, simply remove the pipes connecting the first water inlet 2 and the first drain 3 to the outside, allowing air to flow into the evaporation chamber 1 through the first water inlet 2 and the first drain 3. During the cooling process, connect the second water inlet 9 and the second drain 10 to the external refrigeration system to maintain the circulation and cooling of the internal refrigerant. Then, the refrigerant enters the pipe 503 through the second water inlet 9 and flows continuously within the pipe 503. During this flow, heat exchange cools the air outside the pipe 503 and the air outside the fins 502, thereby cooling the air flowing into the evaporation chamber 1 and completing the air cooling process.
[0035] If liquid cooling is required, simply connect the inlet pipe and the drain pipe to the first inlet hole 2 and the first drain hole 3 respectively. Liquid is introduced into the evaporation chamber 1 through the first inlet hole 2. The liquid is blocked by the baffle 6, flows through the gap between the fins 502 to the other end of the evaporator body 5, and then flows back to the other end after being blocked by the baffle 6 at the other end of the evaporator body 1. This allows the liquid inside the evaporation chamber 1 to fully contact the pipes 503 of the evaporator body 5 to achieve cooling. Finally, the liquid flows into the other end of the evaporation chamber 1 and is discharged from the first drain hole 3 to flow to external equipment for liquid cooling, thus completing the entire cooling process.
[0036] Example 2,
[0037] Based on Embodiment 1, in order to ensure the temperature of the liquid after cooling, so as to facilitate precise temperature cooling of external equipment, a feasible solution is provided here. A temperature sensor 8 and a heating device 7 are also provided on the inner wall of the evaporation chamber 1 where the first drain hole 3 is opened, and an exhaust hole 4 is opened on the top of the other end of the evaporation chamber 1.
[0038] In this embodiment, the heating device 7 is an electric heating device or a steam heating device.
[0039] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.
Claims
1. A liquid-cooled evaporator, characterized in that: include, The evaporator body is placed at one end of the evaporation chamber; Several parallel baffles are staggered on both sides of the evaporator body and fixed to the inner wall of the evaporator chamber; The first water inlet is located on the top outer side of the evaporator body at one end of the evaporation chamber. The first drain hole is located on the side wall at the other end of the evaporation chamber.
2. The liquid-cooled evaporator according to claim 1, characterized in that: A temperature sensor and a heating device are also installed on the inner wall of the evaporator chamber where the first drain hole is opened, and an exhaust hole is opened at the top of the other end of the evaporator chamber.
3. The liquid-cooled evaporator according to claim 2, characterized in that: The heating device is an electric heating device or a steam heating device.
4. The liquid-cooled evaporator according to claim 1, characterized in that: The evaporator body specifically includes several parallel fins and a pipe passing through the fins. An mounting plate is provided on the outermost fin, and the evaporator body is fixed to the inner wall of the evaporation chamber by any one of the mounting plates.
5. A liquid-cooled evaporator according to claim 4, characterized in that: The baffle is set parallel to the fins, one side of the baffle is fixed to the inner wall of the evaporation chamber, and the other side of the baffle is fixed to the side of any one of the fins.
6. The liquid-cooled evaporator according to claim 4, characterized in that: The pipe is in the shape of a coil, distributed vertically through several fins, and a second water inlet and a second drain outlet are respectively provided at both ends of the pipe.