Defrosting and dehumidifying structure and refrigeration system

Abstract

A defrosting and dehumidifying structure and a refrigeration system, the defrosting and dehumidifying structure comprising a heat exchanger, a heat auxiliary assembly and a heat storage circulating member, the heat exchanger being connected with a compressor for heat exchange with high-temperature medium generated by the compressor, the heat storage circulating member being connected with the heat exchanger for heat exchange with the compressor and for acting on a cold air blower with stored heat to defrost or dehumidify the cold air blower, the heat auxiliary assembly being communicated with the heat storage circulating member for auxiliary heating of medium in the heat storage circulating member, and the refrigeration system comprising the defrosting and dehumidifying structure. The defrosting and dehumidifying structure and the refrigeration system defrost and dehumidify the cold air blower by means of heat generated by compression of refrigeration medium by the compressor, thereby reducing overall cost and saving energy and protecting the environment.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration system control technology, and in particular to a defrosting and dehumidifying structure and refrigeration system. Background Technology

[0002] For refrigeration systems, common problems include fan frosting and high humidity in the air entering the cold storage through the fan. These are common issues in cold storage refrigeration systems. Currently, the solution to these problems relies entirely on external heating to achieve dehumidification and defrosting, which increases the overall cost. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a defrosting and dehumidifying structure and refrigeration system, which uses the heat generated by the compressor compressing the refrigerant to defrost and dehumidify the air cooler, thereby reducing the overall cost and saving energy and protecting the environment.

[0004] This utility model provides a defrosting and dehumidification structure, including a heat exchanger, a heat auxiliary component, and a heat storage circulation component. The heat exchanger is connected to a compressor and is used to exchange heat with the high-temperature medium generated by the compressor. The heat storage circulation component is connected to the heat exchanger and is used to exchange heat with the compressor and apply the stored heat to a cold air blower to defrost or dehumidify the cold air blower. The heat auxiliary component is connected to the heat storage circulation component and is used to assist in heating the medium in the heat storage circulation component.

[0005] In one embodiment, the heat storage circulation component includes a circulation pipe, a first circulation pump, a second circulation pump, and a heat storage tank. The circulation pipe connects the heat exchanger and the air cooler. The first circulation pump, the second circulation pump, and the heat storage tank are mounted on the circulation pipe, and the circulation direction of the second circulation pump is opposite to that of the first circulation pump. The heat auxiliary component is connected to the circulation pipe.

[0006] In one embodiment, the heat storage circulation component further includes a proportional valve, which is mounted on the circulation pipe and is located near the air cooler.

[0007] In one embodiment, the thermal auxiliary component includes a three-way valve and an electric heating unit. The three-way valve is connected to the electric heating unit, a second circulating pump, and the heat exchanger through the circulation pipe, and the electric heating unit is also connected to the circulation pipe.

[0008] This utility model also provides a refrigeration system, including the defrosting and dehumidification structure described in any one of the above.

[0009] The defrosting and dehumidifying structure and refrigeration system provided by this utility model utilize the heat generated by the compressor compressing the refrigerant to defrost and dehumidify the air cooler, reducing overall costs and being energy-saving and environmentally friendly. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the defrosting and dehumidifying structure provided by this utility model. Detailed Implementation

[0012] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0014] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0016] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0017] Example 1

[0018] Please see Figure 1 The defrosting and dehumidifying structure provided by this utility model includes a heat exchanger 1, a heat auxiliary component 3, and a heat storage circulation component 2. The heat exchanger 1 is connected to the compressor 4 and is used to exchange heat with the high-temperature medium generated by the compressor 4. The heat storage circulation component 2 is connected to the heat exchanger 1 and is used to exchange heat with the compressor 4, and to apply the stored heat to the air cooler 6 to defrost or dehumidify the air cooler 6. The heat auxiliary component 3 is connected to the heat storage circulation component 2 and is used to assist in heating the medium in the heat storage circulation component 2.

[0019] It is known that a frost sensor and a temperature and humidity transmitter can be installed at the location of the evaporative air cooler 6 to monitor the frost condition and temperature and humidity, respectively. When frost forms on the evaporative air cooler 6 or the humidity of the cold air entering the evaporative air cooler 6 exceeds a preset threshold, the device starts working. This can be controlled by a PID controller. When defrosting is required, the heat storage circulation component 2 operates. The heat exchanger 1 can be a plate heat exchanger. The heat storage circulation component 2 exchanges heat with the high-temperature medium generated by the compressor 4 through the heat exchanger 1. The medium within the heat storage circulation component 2 can... Ethylene glycol is used for heat exchange in the heat storage circulation component 2, which transfers the heat to the air inlet of the air cooler 6 to perform defrosting. The heat auxiliary component 3 can also heat the ethylene glycol in the heat storage circulation component 2 to improve the overall defrosting effect. When dehumidification is required, the temperature at the air cooler inlet needs to be heated to above the dew point using ethylene glycol. The temperature at the inlet can be monitored by the temperature and humidity transmitter mentioned above. During the dehumidification stage, cooling is carried out simultaneously to offset the overall temperature rise.

[0020] Please see Figure 1 In some embodiments, the heat storage circulation component 2 includes a circulation pipe, a first circulation pump 203, a second circulation pump 201, and a heat storage tank 202. The circulation pipe is connected to the heat exchanger 1 and the air cooler 6. The first circulation pump 203, the second circulation pump 201, and the heat storage tank 202 are mounted on the circulation pipe, and the circulation direction of the second circulation pump 201 is opposite to that of the first circulation pump 203. The heat auxiliary component 3 is connected to the circulation pipe.

[0021] It is understood that the circulation pipe may include a first pipe body, a second pipe body, and a heat exchange pipe section. The first pipe body and the second pipe body are connected through the heat exchange pipe section, and the first pipe body and the second pipe body are respectively connected to the two ends of the heat exchanger 1. The heat exchange pipe section may be placed at the air inlet of the air cooler 6. The heat exchange pipe section transfers heat at the air inlet of the air cooler 6, which can improve the heat transfer effect. The heat storage tank 202 may be used to store ethylene glycol. It is used to store ethylene glycol when defrosting and dehumidification are not required. The first circulation pump 203 is used for the circulation of ethylene glycol between the first pipe body, the second pipe body, the heat exchange pipe section, and the heat exchanger 1. It is used when the heat provided in the heat exchanger 1 can meet the demand. The second circulation pump 201 is used for heating ethylene glycol through the heat auxiliary component 3. The heat auxiliary component 3 may be a common electric heating device. At the same time, ethylene glycol also circulates between the first pipe body, the second pipe body, and the heat exchange pipe section. It is used when the heat in the heat exchanger 1 cannot meet the demand.

[0022] Please continue reading. Figure 1 In some embodiments, the heat storage circulation component 2 further includes a proportional valve 204, which is mounted on the circulation pipe and is located near the air cooler 6.

[0023] Understandably, the proportional valve 204 can control the flow rate of ethylene glycol passing through the air cooler 6, thereby controlling defrosting and dehumidification.

[0024] Please see Figure 1 In some embodiments, the thermal auxiliary component 3 includes a three-way valve 302 and an electric heating unit 301. The three-way valve 302 is connected to the electric heating unit 301, the second circulating pump 301 and the heat exchanger 1 through a circulation pipe, and the electric heating unit 301 is also connected to the circulation pipe.

[0025] It is known that the second circulation pump 301 realizes the circulation of ethylene glycol in the electric heating unit 301 and the circulation pipe. It has a simple structure and convenient circulation.

[0026] A temperature sensor can also be installed inside the circulation pipe of the aforementioned defrosting and dehumidifying structure to monitor the temperature of the ethylene glycol. When the ethylene glycol temperature exceeds a preset temperature threshold, the electric heating is immediately cut off, triggering an audible and visual alarm to provide overheat protection. During the defrosting process, the defrosting cycle can be initiated every 4 hours, taking 8-12 minutes, or it can be initiated based on monitoring results. Dehumidification response: It can be initiated within 5 minutes after the humidity exceeds the limit, and it will generally drop to the target value within 20 minutes.

[0027] Example 2

[0028] This embodiment provides a refrigeration system, including the defrosting and dehumidifying structure described above, as well as common equipment in refrigeration systems such as a compressor 4 and a condenser 5. The compressor 4 compresses and heats the refrigerant and introduces it into the condenser 5. The condenser 5 is connected to the other equipment in the refrigeration system, which are common equipment in refrigeration systems. The generated cooling capacity is blown into the cold storage through a cold air blower 6. The heat generated by the compressor 4 compressing the refrigerant is exchanged between the compressor 4 and the defrosting and dehumidifying structure described above through a plate heat exchanger.

[0029] As can be seen from the above description, the defrosting and dehumidifying structure and refrigeration system provided by this utility model utilize the heat generated by the compressor 4 compressing the refrigerant medium to perform defrosting and dehumidifying operations on the air cooler 6, thereby reducing the overall cost and being energy-saving and environmentally friendly.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A defrosting and dehumidifying structure characterized by comprising: The device includes a heat exchanger, a heat auxiliary component, and a heat storage circulation component. The heat exchanger is connected to the compressor and is used to exchange heat with the high-temperature medium generated by the compressor. The heat storage circulation component is connected to the heat exchanger and is used to exchange heat with the compressor and apply the stored heat to the air cooler to defrost or dehumidify the air cooler. The heat auxiliary component is connected to the heat storage circulation component and is used to provide auxiliary heating for the medium in the heat storage circulation component.

2. The defrosting and dehumidifying structure according to claim 1, wherein The heat storage circulation component includes a circulation pipe, a first circulation pump, a second circulation pump, and a heat storage tank. The circulation pipe connects the heat exchanger and the air cooler. The first circulation pump, the second circulation pump, and the heat storage tank are mounted on the circulation pipe, and the circulation direction of the second circulation pump is opposite to that of the first circulation pump. The heat auxiliary component is connected to the circulation pipe.

3. The defrosting and dehumidifying structure according to claim 2, wherein The heat storage circulation component also includes a proportional valve, which is mounted on the circulation pipe and is located near the air cooler.

4. The defrosting and dehumidifying structure according to claim 2, wherein The thermal auxiliary component includes a three-way valve and an electric heating unit. The three-way valve is connected to the electric heating unit, the second circulating pump, and the heat exchanger through the circulation pipe, and the electric heating unit is also connected to the circulation pipe.

5. A refrigeration system characterized by, Includes the defrosting and dehumidifying structure as described in any one of claims 1 to 4.

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