Vortex cooling equipment capable of freely cooling
By combining the natural heat exchange coil and the refrigerant condenser in the vortex cooling equipment, and using the same set of condenser fans, the cooling mode can be automatically switched according to the ambient temperature, which solves the problems of instability and high energy consumption of the refrigerant system and achieves energy-saving and stable cooling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FLEMIKE (JIANGSU) ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-28
AI Technical Summary
Existing fluorinated refrigerant systems are unstable in scroll cooling equipment, and the compressor consumes a lot of energy, leading to increased energy consumption.
Design a freely cooling scroll cooling device that integrates a natural heat exchange coil with a refrigerant condenser, utilizes the same set of condenser fans, and automatically switches the cooling mode based on ambient temperature regulation, thereby reducing the frequency of compressor use, improving fan utilization, and increasing the heat exchange area.
It provides a free cooling source without requiring the compressor to be started, reducing energy consumption, improving heat exchange efficiency, reducing manual adjustments, and achieving stable equipment operation.
Smart Images

Figure CN224175374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling equipment technology, and in particular to a vortex cooling equipment that can be freely cooled. Background Technology
[0002] An air conditioner, or air conditioner, consists of four parts: a refrigeration and heating cycle system, an air circulation and ventilation system, an electrical control system, and a housing. It is a small air conditioning unit that maintains a certain temperature, humidity, airflow speed, cleanliness, and freshness of the air in the regulated space. With economic development and population growth, energy demand is constantly rising, and environmental pollution and greenhouse gas emissions are becoming increasingly prominent. To address these issues, developing environmentally friendly and energy-saving products has become the mainstream of society. The refrigeration and air conditioning industry has also seen a large number of energy-saving products emerge, and these products are gradually becoming the mainstream of life. With industrial development, more and more equipment requires mechanical cooling to maintain efficient and stable operation.
[0003] Modern freely cooling scroll cooling systems can basically meet people's needs, but some problems still exist, as detailed below:
[0004] Currently, air conditioning chillers are mainly used to cool and lower the temperature of the equipment. However, the equipment needs to start the compressor in winter. The refrigerant system in the chiller is unstable and the compressor consumes a lot of energy. Utility Model Content
[0005] The purpose of this invention is to provide a freely coolable vortex refrigeration device to solve the problems of unstable operation of existing fluorine systems and high energy consumption of compressor operation.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a freely coolable vortex cooling device, including a shell;
[0007] An air conditioning water outlet is provided at one end of the outer casing, an air conditioning water inlet is provided at one end of the outer casing, and a hot water outlet is installed on one side of one end of the outer casing.
[0008] A hot water inlet is installed on one side of one end of the outer casing, and a condenser structure is installed on the top of the outer casing. The condenser structure includes a condenser body installed on the top of the outer casing.
[0009] An electronic expansion valve is installed at the bottom of the condenser structure, a compressor is installed on one side of the condenser structure, and an evaporation mechanism is installed at the bottom of the compressor.
[0010] In operation, the compressor first operates in cooling mode. When T1-T2 < 2 degrees Celsius, the natural heat exchange coil is closed, and all refrigerant is cooled by the compressor, similar to conventional units. The electric three-way valve is set to open the natural heat exchange coil, and the compressor operates in cooling mode. When T1-T2 ≥ 2 degrees Celsius, and the ambient temperature is 2 degrees Celsius or higher below the refrigerant return temperature, the natural heat exchange coil is activated to pre-cool the refrigerant. For any insufficient cooling capacity, the compressor is activated again for cooling. The electric three-way valve is set to close the natural heat exchange coil, and the compressor operates to supplement cooling. When natural cooling reaches 100% of the unit's cooling capacity, it enters 100% natural cooling mode, and the compressor cooling system is shut down. There is no compressor power consumption, only a small amount of condenser fan power. The electric three-way valve is set to close the two natural heat exchange coils, and the compressor shuts down. When the equipment's stable design deviation is ±1.5 degrees Celsius and the temperature difference is 3.5 degrees Celsius, it enters a mixed operation mode. When the temperature difference is 0.5 degrees Celsius, it switches to compressor cooling mode, thus preventing frequent mode changes due to environmental fluctuations.
[0011] Furthermore, one end of the housing is equipped with a forklift hole, and the forklift holes are symmetrically distributed about the central axis of the housing, allowing a forklift to be inserted into the forklift hole.
[0012] Furthermore, a condensing fan is installed at the top of the condenser body, and a refrigerant condenser is installed on the outside of the condenser body. When the natural heat exchange coil and the refrigerant condenser are integrated, a single condensing fan can be used. This way, a single condensing fan can be used for both the natural heat exchange coil and the refrigerant condenser, improving the fan's utilization rate.
[0013] Furthermore, a natural heat exchange coil is installed on the outer side of the condenser body, and the inner diameter of the natural heat exchange coil is larger than the outer diameter of the fluorine condenser.
[0014] Furthermore, the natural heat exchange coil and the refrigerant condenser are both made into a single unit, with three rows of tubes. When either the natural heat exchange coil or the refrigerant condenser is used alone, the heat exchange area of the six rows of tubes is always larger than that of a separately designed heat exchange coil, resulting in better heat exchange performance.
[0015] Furthermore, the evaporation mechanism includes an evaporator mounted at the bottom of the compressor, an electric three-way valve mounted on one side of the evaporator, and a circulation pump mounted on one side of the electric three-way valve.
[0016] Furthermore, a refrigeration cooling side is installed on one side of the circulating pump, and the refrigeration cooling side is serpentine in shape.
[0017] The advantages of the freely coolable scroll cooling device provided by this utility model are: it aims to provide a device that can obtain a free cold source without starting the compressor during the transitional season or winter, has a large heat exchange surface, improves the utilization rate of the fan, reduces manual adjustment, and uses the same set of pipelines.
[0018] By installing the condenser body at the top of the casing, the natural heat exchange coil and the refrigerant condenser are integrated into one unit. When using either the natural heat exchange coil or the refrigerant condenser alone, the heat exchange area of six rows of tubes is always larger than that of a separately designed unit, resulting in better heat exchange performance. When the natural heat exchange coil and the refrigerant condenser are integrated, a single condenser fan can be used. This allows both the natural heat exchange coil and the refrigerant condenser to be used with a single condenser fan, improving fan utilization. This achieves the goal of reducing energy consumption in a freely cooling vortex refrigeration system. Attached Figure Description
[0019] Figure 1 This is a frontal cross-sectional view of the present invention.
[0020] Figure 2 This is a side sectional view of the present invention.
[0021] Figure 3 This is a schematic diagram of the mechanical refrigeration using R410A environmentally friendly refrigerant of this utility model;
[0022] Figure 4 This is a partial cross-sectional view of the condenser structure of this utility model.
[0023] Figure 5 This is a partial cross-sectional view of the evaporation mechanism of this utility model.
[0024] The following are the annotations in the diagram: 1. Outer shell; 2. Condenser structure; 201. Condenser fan; 202. Natural heat exchange coil; 203. Refrigerant condenser; 204. Condenser body; 3. Forklift hole; 4. Air conditioner outlet; 5. Air conditioner inlet; 6. Hot water outlet; 7. Hot water inlet; 8. Electronic expansion valve; 9. Compressor; 10. Evaporation mechanism; 1001. Evaporator; 1002. Electric three-way valve; 1003. Circulation pump; 1004. Refrigeration cooling side. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-5 One embodiment of this utility model is a freely coolable vortex cooling device, including a housing 1.
[0027] An air conditioning outlet 4 is provided at one end of the outer casing 1, and a forklift hole 3 is installed at one end of the outer casing 1, and the forklift holes 3 are symmetrically distributed about the central axis of the outer casing 1.
[0028] An air conditioning water inlet 5 is provided at one end of the outer casing 1, and a hot water outlet 6 is installed on one side of one end of the outer casing 1.
[0029] A hot water inlet 7 is installed on one side of one end of the outer casing 1, and a condenser structure 2 is installed on the top of the outer casing 1. The condenser structure 2 includes a condenser body 204 installed on the top of the outer casing 1, and a natural heat exchange coil 202 is installed on the outside of the condenser body 204.
[0030] The natural heat exchange coil 202, which has three rows of tubes, and the refrigerant condenser 203, which also has three rows of tubes, are integrated into one unit.
[0031] The inner diameter of the natural heat exchange coil 202 is larger than the outer diameter of the refrigerant condenser 203. The natural heat exchange coil 202 is installed on the outside of the condenser body 204, and the inner diameter of the natural heat exchange coil 202 is larger than the outer diameter of the refrigerant condenser 203.
[0032] A condenser fan 201 is installed at the top of the condenser body 204, and a refrigerant condenser 203 is installed on the outside of the condenser body 204.
[0033] See attached document Figure 1-4 As shown, the natural heat exchange coil 202 and the refrigerant condenser 203 are both three-row tubes, integrated into one unit. When the natural heat exchange coil 202 or the refrigerant condenser 203 is used alone, the heat exchange area of the six-row tubes is always larger than that of a separately designed heat exchange coil, resulting in better heat exchange performance. When the natural heat exchange coil 202 and the refrigerant condenser 203 are integrated, a single condenser fan 201 can be used. This allows both the natural heat exchange coil 202 and the refrigerant condenser 203 to be used with a single condenser fan 201, improving the fan utilization rate.
[0034] An electronic expansion valve 8 is installed at the bottom of the condenser structure 2. A compressor 9 is installed on one side of the condenser structure 2. An evaporation mechanism 10 is installed at the bottom of the compressor 9. The evaporation mechanism 10 includes an evaporator 1001 installed at the bottom of the compressor 9. An electric three-way valve 1002 is installed on one side of the evaporator 1001. A circulation pump 1003 is installed on one side of the electric three-way valve 1002. A freezing and cooling side 1004 is installed on one side of the circulation pump 1003. The freezing and cooling side 1004 is serpentine in shape.
[0035] See attached document Figure 3 and attached Figure 5As shown, the environmentally friendly refrigerant, under the action of the circulating pump 1003, enters the evaporator 1001 through the liquid inlet. Heat exchange occurs within the evaporator 1001, and the refrigerant then exits through the liquid outlet, flowing into the refrigeration cooling side 1004, thus cooling the refrigeration cooling side 1004. When T1-T2 < 2 degrees Celsius, the natural heat exchange coil 202 is closed, and all the refrigerant is cooled by the compressor 9, similar to conventional units. The electric three-way valve 1002 is set to open the natural heat exchange coil 202, and the compressor operates for cooling. When T1-T2 ≥ 2 degrees Celsius, and the ambient temperature reaches 2 degrees Celsius or higher below the refrigerant return temperature, the natural heat exchange coil 202 is activated to pre-cool the refrigerant. For any insufficient cooling capacity, the compressor 9 is activated again. The electric three-way valve 1002 is then set to close the natural heat exchange coil 202, and the compressor 9 operates for cooling supplementation. Natural cooling reaches the unit's cooling capacity. At 100% capacity, it enters 100% natural cooling, the compressor 9 cooling system is shut down, there is no compressor 9 power consumption, only a small amount of condenser fan 201 operating power, the electric three-way valve 1002 is set to close the natural heat exchange coil 202, the compressor 9 is shut down, the equipment stabilizes with a design deviation of ±1.5℃, and enters mixed operation mode when the temperature difference is 3.5℃, and switches to compressor 9 cooling mode when the temperature difference is 0.5℃. This avoids frequent mode changes due to environmental fluctuations. The above 2℃ is verified by professional coil software and coil heat transfer ratio. In this way, the medium-temperature environmentally friendly refrigerant can eliminate the need to turn on the compressor 9 during the five months of late autumn, winter and early spring, maximizing the saving of air conditioning energy consumption. The medium in the refrigerant pipeline is R410A, and the medium in the environmentally friendly refrigerant pipeline is environmentally friendly refrigerant. The environmentally friendly refrigerant pipeline is connected together. Whether it is R410A cooling or free cooling of environmentally friendly refrigerant, it is very simple and does not require manual adjustment.
[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. A freely coolable vortex cooling device, comprising a housing (1); Its features are: An air conditioning outlet (4) is provided at one end of the outer casing (1), an air conditioning inlet (5) is provided at one end of the outer casing (1), and a hot water outlet (6) is installed on one side of one end of the outer casing (1). A hot water inlet (7) is installed on one side of one end of the outer shell (1), and a condenser structure (2) is installed on the top of the outer shell (1). The condenser structure (2) includes a condenser body (204) installed on the top of the outer shell (1). An electronic expansion valve (8) is installed at the bottom of the condenser structure (2), a compressor (9) is installed on one side of the condenser structure (2), and an evaporation mechanism (10) is installed at the bottom of the compressor (9).
2. The freely coolable vortex cooling device according to claim 1, characterized in that: One end of the outer shell (1) is equipped with a forklift hole (3), and the forklift hole (3) is symmetrically distributed about the central axis of the outer shell (1).
3. The freely coolable vortex cooling device according to claim 1, characterized in that: A condenser fan (201) is installed at the top of the condenser body (204), and a fluorine condenser (203) is installed on the outside of the condenser body (204).
4. The freely coolable vortex cooling device according to claim 3, characterized in that: A natural heat exchange coil (202) is installed on the outside of the condenser body (204), and the inner diameter of the natural heat exchange coil (202) is larger than the outer diameter of the fluorine condenser (203).
5. The freely coolable vortex cooling device according to claim 4, characterized in that: The natural heat exchange coil (202) and the fluorine condenser (203) are both made into one unit, consisting of three rows of tubes.
6. The freely coolable vortex cooling device according to claim 1, characterized in that: The evaporation mechanism (10) includes an evaporator (1001) installed at the bottom of the compressor (9), an electric three-way valve (1002) installed on one side of the evaporator (1001), and a circulation pump (1003) installed on one side of the electric three-way valve (1002).
7. The freely coolable vortex cooling device according to claim 6, characterized in that: A refrigeration cooling side (1004) is installed on one side of the circulating pump (1003), and the refrigeration cooling side (1004) is serpentine in shape.