Air conditioner cooling system
By connecting the evaporative condenser and the air-cooled condenser in series, and using a spray system and a water cooling system in the evaporative condenser, the problems of low heat dissipation efficiency and insufficient reliability of the air-conditioning and refrigeration system are solved, and an efficient and energy-saving refrigeration effect is achieved. .
Patent Information
- Application Number
- CN202421045977.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing air-conditioning and refrigeration systems have problems of low reliability and insufficient heat dissipation efficiency during the heat dissipation process, especially the air-cooled condenser cannot make full use of natural heat dissipation, while the evaporative cooling condenser has reduced heat dissipation ability due to the prone to scale accumulation of fins.
Using the series of evaporator -cold condenser and wind cold condenser, the evaporative cold condenser uses a smooth tube with a wing piece, and is equipped with a spray system and a water -cooled system. The temperature difference and heat dissipation efficiency.
A dual advantage of taking into account the cold and evaporation cold, improved the cooling efficiency and system reliability, reduced the operating cost, and further improved the energy saving effect through the cycle of the water -cooled system.
Smart Images
Figure CN222393009U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration systems, in particular to an air-conditioning cooling system. Background Art
[0002] Air conditioning refrigerant is the working medium of the refrigeration cycle, which uses the phase change of the refrigerant to transfer heat, that is, the refrigerant absorbs heat when it vaporizes in the evaporator and releases heat when it condenses in the condenser. There are many types of air conditioning refrigerants, including inorganic compound refrigerants, Freon, saturated hydrocarbon refrigerants, unsaturated hydrocarbon refrigerants and azeotropic mixture refrigerants.
[0003] The air conditioning refrigerant mainly includes four processes when working. First, the compression process, the refrigerant absorbs heat in the low-temperature and low-pressure evaporator, and changes from gas to low-temperature and low-pressure liquid, and then this low-temperature and low-pressure liquid refrigerant is sucked into the compressor. The compressor is the core component of the refrigeration system. The motor drives the compression component to work and compresses the refrigerant into a high-temperature and high-pressure gas; second, the condensation process, the high-temperature and high-pressure gaseous refrigerant is sent to the condenser. The function of the condenser is to dissipate the heat in the refrigerant to the external environment, so that the refrigerant condenses from the high-temperature and high-pressure gas into a liquid state to achieve heat release.
[0004] During the heat dissipation process of the outdoor condenser, it is necessary to refrigerate the high-temperature and high-pressure gaseous refrigerant after the compressor. In the existing refrigeration system, the heat is often dissipated by the evaporative cooling coil of the evaporative cooling condenser with cold water spray or by the air-cooled condenser. The methods are single and have their own shortcomings. The air-cooled condenser only uses the dry-bulb temperature difference to achieve cooling, and cannot fully utilize natural heat dissipation. According to its structural form, the evaporative cooling condenser, if equipped with fins, will increase the maintenance workload to prevent scaling and clogging. If it does not have fins, its heat dissipation surface area is smaller than that of the finned condenser in the season when water spraying is not required, which affects its heat dissipation capacity.
[0005] For the evaporative cooling system, there are at least the following working modes: evaporative cooling state, at this time the water spray system cools the evaporative cooling condenser coil; air cooling state, at this time the water spray system stops spraying water, and the heat dissipation of the outdoor unit relies on the surface area of the evaporative cooling condenser coil for air cooling. In order to meet the air cooling requirements, the evaporative cooling condenser has to add a large number of fins. The small gaps of these fins are easily covered with scale and sand during the water spraying period, which affects the heat dissipation capacity of the condenser and reduces reliability, so frequent descaling and maintenance are required. Utility Model Content
[0006] The purpose of the utility model is to provide an air conditioning cooling system to solve the following technical problems:
[0007] How to improve the reliability and heat dissipation efficiency of air-conditioning and refrigeration systems?
[0008] The purpose of the utility model can be achieved through the following technical solutions:
[0009] An air conditioning cooling system includes an evaporative cooling condenser, wherein the evaporative cooling condenser includes an evaporative cooling coil for circulating a refrigerant; and an air-cooled condenser, wherein the air-cooled condenser includes an air-cooled cooling coil, wherein the air-cooled cooling coil is connected in series with the evaporative cooling coil; and a water cooling system is provided at the bottom of the evaporative cooling condenser for cooling hot water discharged from the evaporative cooling condenser.
[0010] As a further solution of the utility model: the evaporative cooling coil is a smooth tube body without fins.
[0011] As a further solution of the utility model: the smooth tube body is a copper tube, a steel tube or a graphite tube.
[0012] As a further solution of the utility model: the evaporative cooling condenser also includes a spray system for spraying cold water onto the evaporative cooling coil.
[0013] As a further solution of the utility model: the spray system includes a plurality of spray heads, and the plurality of spray heads are arranged above the evaporative cooling coil.
[0014] As a further solution of the utility model: a water tank is provided at the bottom of the water cooling system, and the water tank is connected to the spray system.
[0015] As a further solution of the utility model: the water cooling system includes a water cooling filler, and the water cooling filler is used to slow down the water flow speed and thus reduce the water temperature.
[0016] As a further solution of the utility model: the water cooling system includes a water cooling coil, the water cooling coil is a heat pipe, and the top end of the heat pipe extends into the air duct of the air conditioning cooling system to achieve a greater degree of reduction in water temperature and improve cooling efficiency.
[0017] As a further solution of the utility model: the air-cooled cooling coil is located in the exhaust area of the water cooling system.
[0018] As a further solution of the utility model: the air-cooled condenser also includes an air inlet for blowing cold air to the air-cooled cooling coil.
[0019] The beneficial effects of the utility model: the utility model can achieve the dual advantages of air cooling and evaporative cooling and realize more efficient refrigeration by connecting an air-cooled cooling coil in series to the evaporative cooling coil of the evaporative cooling condenser; at the same time, the hot water in the evaporative condenser is cooled and recycled by the water cooling system, which can further reduce the water temperature and thus be more conducive to improving the temperature difference of the evaporative cooling condenser, thereby realizing more efficient energy saving; and the exhaust air in the water cooling system can more effectively cool the air-cooled cooling coil due to its high humidity; in general, by combining air cooling with water cooling, more efficient and quick refrigeration of the refrigerant is achieved, and the refrigeration effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described below in conjunction with the accompanying drawings.
[0021] Figure 1 It is a structural schematic diagram of the air conditioning cooling system of Example 1 of the utility model;
[0022] Figure 2 It is a structural schematic diagram of the air conditioning cooling system of Example 2 of the utility model.
[0023] In the figure: 1. Evaporative cooling condenser; 101. Evaporative cooling coil; 102. Spray system; 2. Air-cooled condenser; 201. Air-cooled cooling coil; 3. Water cooling system; 301. Water-cooled filler; 302. Water-cooled coil. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] See also Figure 1The present embodiment is an air conditioning cooling system, comprising an evaporative cooling condenser 1, an air-cooled condenser 2 and a water-cooled system 3, wherein the evaporative cooling condenser 1 comprises an evaporative cooling coil 101 and a spray system 102, and the spray system 102 is arranged directly above the evaporative cooling coil 101; a refrigerant flows in the evaporative cooling coil 101, one end of which is fed with a high-temperature and high-pressure refrigerant gas compressed by a compressor, and the other end is fed with a liquefied refrigerant liquid after condensation; the evaporative cooling coil 101 uses a smooth copper tube, steel tube or graphite tube without fins, which not only has good thermal conductivity, but also can prevent the fins from being dirty and affecting the heat dissipation performance during long-term use; the spray system 102 comprises a plurality of nozzles for spraying cold water onto the evaporative cooling coil 101; cold air is passed through one side of the evaporative cooling coil 101, and hot air is discharged from the other side, and the hot air can be blown out to the outside through a fan.
[0027] The air-cooled condenser 2 includes an air-cooled cooling coil 201, which is connected in series with the evaporative cooling coil 101; a plurality of air inlets are provided in the air-cooled condenser 2 for introducing new cold air to cool the air-cooled cooling coil.
[0028] The water cooling system 3 is arranged directly below the evaporative cooling coil 101, and the water cooling system 3 includes a water cooling filler 301 for slowing down the water flow velocity of the spray system 102; cold air is introduced into one side of the water cooling system 3 for cooling the water flow; the air-cooled cooling coil 201 is located in the exhaust area of the water cooling system 3, and can also be affected by the cold air in the water cooling system 3; the exhaust air has a relatively high humidity, which also enhances the air's heat carrying capacity to a certain extent, thereby enhancing the heat dissipation effect.
[0029] A water tank 4 is also provided at the bottom of the water cooling system 3 to accommodate the accumulated water flowing out of the water cooling system 3 . The water tank 4 is connected to the spray system 102 and can be used as a water source for the spray system 102 .
[0030] The working principle of this embodiment is:
[0031] After the refrigerant is transformed into high-temperature and high-pressure gas by the action of the compressor, it enters the evaporative cooling coil 101. When flowing in the evaporative cooling coil 101, cold air is introduced into one side of the evaporative cooling coil 101. When the cold air blows through the evaporative cooling coil 101, it exchanges heat with the surface of the evaporative cooling coil 101, so that the temperature of the cold air increases and turns into hot air. At the same time, the temperature of the refrigerant inside the evaporative cooling coil 101 decreases, and the hot air is blown out through the fan; at the same time, the nozzle in the spray system 102 sprays cold water downward, and the cold water contacts and exchanges heat with the surface of the evaporative cooling coil 101, so that the temperature of the cold water increases and turns into hot water. At the same time, the temperature of the refrigerant inside the evaporative cooling coil 101 decreases;
[0032] The hot water flows downward into the water cooling system 3, and cold air is introduced into the water cooling system 3. The hot water is slowed down by the water cooling filler 301, so that the hot water and the cold air can fully contact each other, thereby realizing the cooling of the hot water. After the hot water is cooled, it is converted into cold water and enters the water tank 4, and then enters the spray system 102 from the water tank 4 for recycling, which is beneficial to energy saving.
[0033] The refrigerant that has undergone evaporative cooling enters the air-cooled cooling coil 201 from the evaporative cooling coil 101. The air-cooled cooling coil 201 can further cool the internal refrigerant through the fresh air introduced from the air-cooled condenser 2 and the cold air from the water cooling system 3, thereby reducing the work done by the compressor and achieving energy saving, and finally flows out from the outlet of the evaporative cooling coil 101.
[0034] Example 2
[0035] See also Figure 2 This embodiment is further improved on the basis of embodiment 1. The improvement lies in that the water cooling filler 301 in embodiment 1 is replaced by a water cooling coil 302. The water cooling coil 302 is a heat pipe. The heat pipe is located in the cold air zone of the water cooling system 3, and its top end extends to the air duct of the evaporative cooling condenser 1.
[0036] The working principle of this embodiment is substantially the same as that of the first embodiment, except that the working principles of the heat pipe used in the water cooling coil 302 and the water cooling filler 301 are different. In this embodiment, the heat pipe principle used in the water cooling coil 302 is:
[0037] The interior of the heat pipe is filled with a phase-change liquid, which has a low boiling point and is easy to evaporate. When hot water falls on the heat pipe, the liquid in the heat pipe evaporates rapidly, and the vapor flows under a small pressure difference. When the vapor flows to the top, since the top of the heat pipe is located in the air duct of the evaporative cold condenser 1, it releases heat and condenses into liquid under the action of cold wind. The condensed liquid flows back downward to achieve circulation, thereby satisfying the cooling effect on the hot water.
[0038] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
[0039] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. An air conditioning cooling system, comprising an evaporative cooling condenser (1), wherein the evaporative cooling condenser (1) comprises an evaporative cooling coil (101) for circulating a refrigerant; characterized in that: It also comprises an air-cooled condenser (2), the air-cooled condenser (2) comprising an air-cooled cooling coil (201), the air-cooled cooling coil (201) being connected in series with the evaporative cooling coil (101); a water cooling system (3) is provided at the bottom of the evaporative cooling condenser (1) for cooling hot water discharged from the evaporative cooling condenser (1).
2. The air conditioning cooling system according to claim 1, characterized in that: The evaporative cooling coil (101) is a smooth tube without fins.
3. The air conditioning cooling system according to claim 2, characterized in that: The smooth tube body is a copper tube, a steel tube or a graphite tube.
4. The air conditioning cooling system according to claim 1, characterized in that: The evaporative cooling condenser (1) also includes a spraying system (102) for spraying cold water onto the evaporative cooling coil (101).
5. The air conditioning cooling system according to claim 4, characterized in that: The spray system (102) comprises a plurality of spray heads, and the plurality of spray heads are arranged above the evaporative cooling coil (101).
6. The air conditioning cooling system according to claim 4, characterized in that: A water tank (4) is provided at the bottom of the water cooling system (3), and the water tank (4) is connected to the spraying system (102).
7. The air conditioning cooling system according to claim 1, characterized in that: The water cooling system (3) comprises a water cooling filler (301), and the water cooling filler (301) is used to slow down the water flow speed.
8. The air conditioning cooling system according to claim 1, characterized in that: The water cooling system (3) comprises a water cooling coil (302), the water cooling coil (302) being a heat pipe, and the top end of the heat pipe extends into the air duct of the air conditioning cooling system.
9. The air conditioning cooling system according to claim 1, characterized in that: The air-cooled cooling coil (201) is located in the exhaust area of the water cooling system (3).
10. The air conditioning cooling system according to claim 9, characterized in that: The air-cooled condenser (2) also includes an air inlet for blowing cold air to the air-cooled cooling coil (201).