Low-temperature refrigeration evaporation coil device with uniform defrosting function

Abstract

The utility model provides a low-temperature refrigeration evaporation coil device with a uniform defrosting function, which relates to the technical field of refrigeration equipment and comprises a device shell, a coil main body is fixedly inserted into the inner surface wall of the device shell, a group of fins are fixedly sleeved on the outer surface wall of the coil main body, and a partition plate is fixedly connected to the inner surface wall of the device shell. Two groups of mounting holes are formed in the top of the partition plate, a first circulating fan is fixedly inserted into the inner surface wall of one group of the two groups of mounting holes, and a second circulating fan is fixedly inserted into the inner surface wall of the other group of the two groups of mounting holes. According to the low-temperature refrigeration evaporation coil device, uniform defrosting of the low-temperature refrigeration evaporation coil device is achieved under the interaction of all the components of the device, frost on the surface of the coil is completely melted, and therefore the influence of local frosting on heat exchange efficiency is eliminated, refrigeration efficiency is remarkably improved, energy consumption is effectively reduced, and energy is saved. And the equipment failure risk caused by uneven defrosting is reduced.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a low-temperature refrigeration evaporator coil device with uniform defrosting function. Background Technology

[0002] Evaporator coils are key heat exchange components in refrigeration systems. They achieve cooling by absorbing heat through refrigerant evaporation within the coil and exchanging heat with the external medium. They are widely used in various types of refrigeration equipment.

[0003] In a refrigeration system, the evaporator coil requires the continuous evaporation and heat absorption of a low-temperature refrigerant to cool the environment. The low-temperature refrigeration evaporator coil device can efficiently promote refrigerant evaporation and ensure a stable low-temperature environment by optimizing the structural design and heat exchange mechanism, while improving heat transfer efficiency to meet the needs of high-precision refrigeration.

[0004] However, existing low-temperature refrigeration evaporator coil devices have the following shortcomings:

[0005] In the existing technology, when the surface temperature of the low-temperature refrigeration evaporator coil device is lower than the dew point temperature of the ambient air, water vapor will condense into frost. The existing device usually uses heating elements to directly heat the coil to achieve defrosting. However, this method makes it difficult to evenly distribute the heat on the entire surface of the coil, so that the frost on some coils cannot melt in time, resulting in incomplete defrosting, which leads to a decrease in refrigeration efficiency, an increase in energy consumption, and an increase in equipment failure rate.

[0006] Therefore, we propose a low-temperature refrigeration evaporator coil device with uniform defrosting function to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a low-temperature refrigeration evaporator coil device with uniform defrosting function. A set of fins first guides the frost layer to grow evenly, reducing the thermal resistance on the air side. The heating component generates heat to directly melt the frost. Then, the hot air is circulated in the device by the fan component, thereby heating the coil body in all directions and continuously, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature refrigeration evaporator coil device with uniform defrosting function, comprising a device shell, a coil body fixedly inserted into the inner wall of the device shell, a set of fins fixedly sleeved on the outer wall of the coil body, a partition plate fixedly connected to the inner wall of the device shell, two sets of mounting holes opened at the top of the partition plate, a first circulating fan fixedly inserted into the inner wall of one set of the two sets of mounting holes, a second circulating fan fixedly inserted into the inner wall of the other set of the two sets of mounting holes, a set of heating tubes fixedly installed on the inner wall of the device shell, and heating wires fixedly connected to the outer wall of each set of heating tubes.

[0009] Preferably, a collection box is fixedly connected to the bottom of the device housing, and a liquid level sensor is fixedly installed on the inner surface of the collection box.

[0010] Preferably, a temperature sensor is fixedly installed on the inner wall of the collection box, and a heating plate is fixedly installed on the bottom of the inner wall of the collection box.

[0011] Preferably, a drain pipe is fixedly connected to the outer wall of the collection box, and an electrically controlled valve is provided on the outer wall of the drain pipe.

[0012] Preferably, the outer wall of the collection box is fixedly connected to a connecting pipe, and the output end of the connecting pipe is fixedly connected to a water pump.

[0013] Preferably, the output end of the water pump is fixedly connected to a delivery pipe, and the output end of the delivery pipe is fixedly connected to a water supply pipe.

[0014] Preferably, the outer wall of the water supply pipe is fixedly connected to four spray pipes, and the outer wall of each of the four spray pipes is fixedly connected to a set of nozzles.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, through the interaction of the various components of the device, a set of fins first guides the frost layer to grow evenly, reducing the thermal resistance on the air side. The heating component generates heat to directly melt the frost. Then, the fan component circulates hot air within the device, thereby heating the coil body in an all-round and continuous manner. In this way, uniform defrosting of the low-temperature refrigeration evaporator coil device is achieved, so that all the frost on the surface of the coil is completely melted, thereby eliminating the impact of local frost on heat exchange efficiency, significantly improving refrigeration efficiency, effectively reducing energy consumption, and reducing the risk of equipment failure caused by uneven defrosting.

[0017] 2. In this utility model, through the interaction of the various components of the device, the condensate after defrosting can be collected, heated by the heating component, and then the preheated warm water is sprayed out in a direction by the water pump. This process can accelerate the melting speed of the residual frost layer through the dual action of heat conduction and flushing, and significantly improve the defrosting efficiency and uniformity. Attached Figure Description

[0018] Figure 1 This utility model presents a front view perspective view of a low-temperature refrigeration evaporator coil device with uniform defrosting function;

[0019] Figure 2 This utility model provides a partial three-dimensional exploded view of a low-temperature refrigeration evaporator coil device with uniform defrosting function;

[0020] Figure 3 This utility model provides a partial sectional perspective view of a low-temperature refrigeration evaporator coil device with uniform defrosting function.

[0021] Figure 4 This invention presents a partial three-dimensional sectional view of a low-temperature refrigeration evaporator coil device with uniform defrosting function.

[0022] Legend: 1. Device casing; 2. Coil body; 3. Fins; 4. Baffle plate; 5. Mounting hole; 6. First circulating fan; 7. Second circulating fan; 8. Heating tube; 9. Heating wire; 10. Collection box; 11. Liquid level sensor; 12. Temperature sensor; 13. Heating plate; 14. Drain pipe; 15. Electrically controlled valve; 16. Connecting pipe; 17. Water pump; 18. Delivery pipe; 19. Water supply pipe; 20. Spray pipe; 21. Spray head. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as shown in the attached document Figure 1 -Appendix Figure 4As shown, this utility model provides a technical solution: a low-temperature refrigeration evaporator coil device with uniform defrosting function, including a device shell 1, a coil body 2 fixedly inserted into the inner wall of the device shell 1, a set of fins 3 fixedly sleeved on the outer wall of the coil body 2, a partition 4 fixedly connected to the inner wall of the device shell 1, two sets of mounting holes 5 opened on the top of the partition 4, a first circulating fan 6 fixedly inserted into the inner wall of one set of mounting holes 5, a second circulating fan 7 fixedly inserted into the inner wall of the other set of mounting holes 5, a set of heating tubes 8 fixedly installed on the inner wall of the device shell 1, and heating wires 9 fixedly connected to the outer wall of each set of heating tubes 8.

[0026] The overall effect of Embodiment 1 is as follows: During use, when the coil body 2 frosts due to its surface temperature being lower than the ambient dew point, a set of fins 3 first promotes the uniform growth of the frost layer, reduces airflow resistance, and creates favorable conditions for subsequent defrosting. Then, the power supply of a set of heating tubes 8 and a set of heating wires 9 is turned on. The heating tubes 8 and the heating wires 9 generate heat directly on the frost layer, accelerating its melting. At the same time, the partition 4 divides the interior of the device shell 1 into upper and lower spaces. The first circulating fan 6 transports heat from the bottom to the top, and the second circulating fan 7 uses the negative pressure effect to make the hot air from the top flow back to the bottom. This airflow circulation mechanism promotes the continuous flow of heat in the device, providing all-round and continuous heating to the frost layer on the surface of the coil body 2 and fins 3, ensuring that the heat evenly covers all parts and avoiding problems such as local overheating or incomplete defrosting. In this way, efficient and uniform defrosting of the coil body 2 and fins 3 is achieved, effectively maintaining the stable operation and heat exchange efficiency of the low-temperature refrigeration system.

[0027] Example 2, as Figure 2-4 As shown, a collection tank 10 is fixedly connected to the bottom of the outer casing 1 of the device. A liquid level sensor 11 is fixedly installed on the inner wall of the collection tank 10. A temperature sensor 12 is fixedly installed on the inner wall of the collection tank 10. A heating plate 13 is fixedly installed on the bottom of the inner wall of the collection tank 10. A drain pipe 14 is fixedly connected to the outer wall of the collection tank 10. An electric control valve 15 is installed on the outer wall of the drain pipe 14. A connecting pipe 16 is fixedly connected to the outer wall of the collection tank 10. A water pump 17 is fixedly connected to the output end of the connecting pipe 16. A delivery pipe 18 is fixedly connected to the output end of the water pump 17. A water supply pipe 19 is fixedly connected to the output end of the delivery pipe 18. Four spray pipes 20 are fixedly connected to the outer wall of the water supply pipe 19. A set of nozzles 21 is fixedly connected to the outer wall of each of the four spray pipes 20.

[0028] The effect achieved by the entire embodiment 2 is as follows: the defrosted water gathers into the collection tank 10 under the action of gravity, the liquid level sensor 11 monitors the water level change in the tank in real time, and when the water level reaches the preset threshold, the electric control valve 15 automatically opens to guide the accumulated water to be discharged through the drain pipe 14. In the subsequent defrosting process, the heating plate 13 is activated to heat the water stored in the collection tank 10. Then the water pump 17 extracts the heated warm water and delivers it to four spray pipes 20 through the delivery pipe 18. The water is then evenly sprayed onto the surface of the fins 3 and the coil body 2 through four sets of nozzles 21. The heat conduction and flushing effect of the warm water can quickly soften and remove the residual frost layer, significantly accelerate the defrosting process, and improve the operating efficiency and defrosting uniformity of the low temperature refrigeration system.

[0029] The working principle of the entire device is as follows: During use, first connect the signal lines of the sensor components to the control system port of the refrigeration equipment. When the coil body 2 frosts due to its surface temperature being lower than the ambient air dew point, a set of fins 3 promotes uniform frost growth, effectively reducing air resistance and laying the foundation for subsequent defrosting. After connecting the power to a set of heating tubes 8 and a set of heating wires 9, they generate a large amount of heat to quickly melt the frost. Simultaneously, a first circulating fan 6 and a second circulating fan 7 are started. The partition 4 divides the interior of the device casing 1 into two spaces. The first circulating fan 6 transfers heat from the bottom to the top space, while the second circulating fan 7 generates a negative pressure effect, causing the hot air from the top to flow back to the bottom space, driving the heat... The water circulates inside the outer casing 1 of the device, thereby continuously heating the frost layer on the surface of the coil body 2 and a set of fins 3, accelerating the melting process. This method allows the coil body 2 and a set of fins 3 to be heated evenly. The water after defrosting falls into the collection tank 10 under the action of gravity. The liquid level sensor 11 monitors the water level in the tank in real time. When the water level is too high, the electric control valve 15 opens, and the water is discharged through the drain pipe 14. In the subsequent defrosting process, the heating plate 13 is activated to heat the water stored in the collection tank 10. Then, the water pump 17 draws out the heated water and sends it to four spray pipes 20 through the delivery pipe 18. It is sprayed downward through four sets of nozzles 21 to perform thermal flushing on a set of fins 3 and the coil body 2, thereby accelerating the defrosting speed and efficiency.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A low-temperature refrigeration evaporator coil device with uniform defrosting function, characterized in that: The device includes a housing (1), a coil body (2) is fixedly inserted into the inner wall of the housing (1), a set of fins (3) is fixedly sleeved on the outer wall of the coil body (2), a partition (4) is fixedly connected to the inner wall of the housing (1), two sets of mounting holes (5) are opened on the top of the partition (4), a first circulating fan (6) is fixedly inserted into the inner wall of one set of the two sets of mounting holes (5), a second circulating fan (7) is fixedly inserted into the inner wall of the other set of the two sets of mounting holes (5), a set of heating tubes (8) is fixedly installed on the inner wall of the housing (1), and a heating wire (9) is fixedly connected to the outer wall of each set of heating tubes (8).

2. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 1, characterized in that: The bottom of the device housing (1) is fixedly connected to a collection box (10), and a liquid level sensor (11) is fixedly installed on the inner surface of the collection box (10).

3. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 2, characterized in that: A temperature sensor (12) is fixedly installed on the inner wall of the collection box (10), and a heating plate (13) is fixedly installed on the bottom of the inner wall of the collection box (10).

4. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 3, characterized in that: The outer wall of the collection box (10) is fixedly connected to a drain pipe (14), and an electric control valve (15) is provided on the outer wall of the drain pipe (14).

5. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 4, characterized in that: The outer wall of the collection box (10) is fixedly connected to a connecting pipe (16), and the output end of the connecting pipe (16) is fixedly connected to a water pump (17).

6. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 5, characterized in that: The output end of the water pump (17) is fixedly connected to the delivery pipe (18), and the output end of the delivery pipe (18) is fixedly connected to the water supply pipe (19).

7. A low-temperature refrigeration evaporator coil device with uniform defrosting function according to claim 6, characterized in that: The outer wall of the water supply pipe (19) is fixedly connected to four spray pipes (20), and the outer wall of each of the four spray pipes (20) is fixedly connected to a set of nozzles (21).

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