Multi-split refrigeration house fan hot fluorine defrosting system
By designing a multi-split cold storage fan hot fluorine defrosting system, and utilizing the switching valve and defrosting tube fin structure, flexible defrosting control of the cold storage fan is achieved. This solves the problems of reduced heat exchange efficiency and resource waste caused by frost buildup in existing cold air blowers, and improves the refrigeration efficiency and stability of the cold storage.
Patent Information
- Application Number
- CN202423241912.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing air coolers are prone to frost formation during low-temperature evaporation, which reduces heat exchange efficiency. Furthermore, existing defrosting methods are energy-intensive, wasteful of resources, and cannot be automated, especially in cold storage facilities with multiple fans where targeted defrosting adjustments are lacking.
A multi-split cold storage fan hot fluorine defrosting system was designed. The flow of Freon is controlled by a switching valve. Combined with the defrosting pipe and fin structure, flexible defrosting is achieved. The high-temperature and high-pressure Freon is recycled by using a return pipe to avoid additional energy input.
It enables flexible defrosting control, saves resources, improves the refrigeration efficiency and operational stability of cold storage, and avoids the limitations of traditional defrosting methods.
Smart Images
Figure CN223610411U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to evaporator technical field, concretely relates to a one -after -another cold storage fan hot fluor defrosting system. BACKGROUND
[0002] The cold fan is in the process of low temperature evaporation of evaporator, because long -term in low temperature state, the frost on the evaporator coil fin gradually thickens, and then reduces the heat exchange efficiency of evaporator coil, in the process of using, the frost layer of cold fan is too thick, influence refrigeration conversion to a certain extent, the cold fan must defrost, the existing defrosting mode includes electric heating tube heating defrosting, water defrosting defrosting, but in use, it is found that, using electric heating tube heating can waste a large amount of electric energy, and there is fire hazard, using water defrosting can waste water resources, and cannot be automatically controlled and still frost, especially large -scale cold storage structure, there are multiple fans in the cold storage, the existing defrosting structure cannot be targeted according to the frost of fan Defrosting, there is certain limitation, therefore, this technical scheme is improved. SUMMARY
[0003] The utility model discloses a water pan structure of hot fluor evaporator which overcomes the deficiency that multiple fans cannot be targeted for defrosting adjustment in the prior art.
[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a one-after-another cold storage fan hot fluor defrosting system, comprising an output pipe connected with a compressor, a plurality of switching valves are arranged on the output pipe, a plurality of fans are communicated with the output end of the output pipe, a water pan is arranged at the lower part of the fan, a defrosting pipe communicated with a refrigeration pipe inside the fan is arranged in the water pan, and fins for increasing the defrosting area are arranged on the outside of the defrosting pipe.
[0005] Further, the bottom surface of the water pan is arranged as an inclined surface, and the fins are arranged in multiple along the width direction of the water pan.
[0006] Further, another outlet of the switching valve is communicated with the inlet of the compressor through a return pipe, and the switching valves are communicated with each other.
[0007] Further, a bypass pipe for adjusting pressure is arranged at the outlet of the refrigeration pipe, and an adjusting valve and a one-way valve are arranged on the bypass pipe.
[0008] Further, the adjusting valve is communicated with the inlet of the refrigeration pipe through a pipeline.
[0009] The embodiment of the utility model has the advantages that: through the conversion between the conversion valves, the defrosting effect of one-to-many is realized, so that some conversion valves can be selectively opened or closed according to the requirement, and the defrosting of one or more is realized quickly, flexible control is realized, and no extra energy is introduced, compared with the existing defrosting structure, resources are saved, the whole system has high integration, is convenient to operate, the limitation of the traditional defrosting mode is avoided, and the refrigeration efficiency and the operation stability of the cold storage are improved. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0011] Fig. 2 It is the water pan profile structure schematic diagram of the utility model;
[0012] Fig. 3 It is the pipeline structure schematic diagram of the utility model at the conversion valve;
[0013] In the drawing: 1, compressor; 101, output pipe; 2, conversion valve; 201, backflow pipe; 3, fan; 301, refrigeration pipe; 302, bypass pipe; 303, water pan; 304, defrosting pipe; 305, fin; 4, communication pipe. DETAILED DESCRIPTION
[0014] The preferred embodiments of the utility model are described below with reference to the drawings, and those skilled in the art should understand that these embodiments are only used for explaining the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.
[0015] See Figs. 1 to 3The utility model discloses a kind of one drags many cold storage fan 3 hot fluorine defrosting systems, mainly including compressor 1, output pipe 101, conversion valve 2, fan 3, water pan 303, defrosting pipe 304 and fin 305 etc.
[0016] The lower part of each fan 3 is provided with a water pan 303, which collects the defrosting water generated during the defrosting process to prevent water droplets from falling onto the items in the cold storage. The bottom surface of the water pan 303 is inclined to facilitate the drainage of defrosting water. Inside the water pan 303, a defrosting pipe 304 is provided that communicates with the refrigeration pipe 301 inside the fan 3. The defrosting pipe 304 is heated by receiving high-temperature and high-pressure Freon output by the compressor 1, thereby melting the frost layer on the fan 3. To improve defrosting efficiency, the defrosting pipe 304 is provided with multiple fins 305 on the outside. The fins 305 are made of aluminum or copper to ensure heat dissipation efficiency. The fins 305 increase the surface area of the defrosting pipe 304, thereby enhancing heat exchange efficiency and accelerating the melting of the frost layer. The fins 305 are evenly distributed along the width direction of the water pan 303 to ensure uniform defrosting.
[0017] The conversion valve 2 not only controls the flow direction of Freon to each fan 3, but also has a backflow function. Another outlet of each conversion valve 2 is connected to the inlet of the compressor 1 through a backflow pipe 201. After refrigeration and defrosting are completed, high-temperature and high-pressure Freon can flow back to the compressor 1 through the backflow pipe 201 for reuse. The conversion valves 2 are interconnected, and a communication pipe 4 is provided between the farthest defrosting pipe 304 and the backflow pipe 201 to guide the multiple parallel refrigerants into the backflow pipe 201 and flow back to the compressor 1, achieving pipeline circulation. A valve is provided on the communication pipe 4 to control the on-off state. According to the defrosting condition, the opening degree is appropriately adjusted to achieve independent or batch defrosting effect and flexible control.
[0018] In use, the heat of the defrosting pipe 304 inside each water pan 303 comes from the respective fan 3, and after long-term use, it is found that frosting will occur on each fan 3, in the case of a compressor 1 driving multiple fans 3, one or several of the conversion valves 2 of the fans 3 can be closed, but at least one fan 3 is in a refrigeration state, and the other two outlets of the conversion valve 2 are in a communication state, and the valve on the communication pipe 4 is closed, at this time, the refrigerant from the refrigeration fan 3 has very high heat, which enters the other several non-refrigeration fans 3 after passing through the pipe from the original water pan 303, enters from the outlet inside the original water pan 303, reversely flows out from the conversion valve 2 and enters the return pipe 201, realizing the defrosting effect of one-to-many, so that some conversion valves 2 can be selectively opened or closed according to needs, and rapid defrosting of one or more is realized, flexible control is realized, and no additional energy is introduced, compared with the existing defrosting structure, resources are saved, the whole system is highly integrated, operation is convenient, the limitations of the traditional defrosting mode are avoided, and the refrigeration efficiency and operation stability of the cold storage are improved.
[0019] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0020] In addition, it should be further pointed out that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0021] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to the process, article or device / apparatus.
[0022] The technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but the person skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. The person skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.
Claims
1. A multi-split cold storage fan (3) hot fluorinated defrosting system, characterized in that: The utility model relates to a refrigeration system, including the output pipe (101) connected with compressor (1), be provided with a plurality of conversion valve (2) on output pipe (101), the output end of output pipe (101) is communicated with a plurality of fan (3), the lower part of fan (3) is provided with water pan (303), the inside of water pan (303) is provided with defrosting pipe (304) with refrigeration pipe (301) in the inside of fan (3) communication, the outside of defrosting pipe (304) is provided with fin (305) for increasing defrosting area.
2. The multi-split cold storage fan-coil (3) heat defrost system according to claim 1, characterized in that: The bottom surface of the water pan (303) is inclined, and the fin (305) is provided with a plurality of fins along the width direction of the water pan (303).
3. The multi-split cold storage fan-coil (3) heat defrost system according to claim 1, wherein: The other outlet of the conversion valve (2) is provided with a return pipe (201) in communication with the inlet of the compressor (1), and the conversion valves (2) are in communication with each other.
4. The multi-split cold storage fan-coil (3) heat defrost system according to claim 1, wherein: The outlet of the refrigeration pipe (301) is provided with a bypass pipe (302) for adjusting pressure, and the bypass pipe (302) is provided with an adjusting valve and a one-way valve.
5. The multi-split cold storage fan-coil (3) heat defrost system according to claim 4, wherein: The adjusting valve is in communication with the inlet of the refrigeration pipe (301) through a pipeline.