Cold storage utilizing evaporator defrosting condensate water cold storage technology

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By setting up a water storage system in the cold storage to collect and utilize the condensate from the evaporator defrosting, the problems of temperature rise and resource waste during defrosting in the cold storage are solved, and the regeneration and utilization of cold energy and stable temperature control are realized.

CN223649523UActive Publication Date: 2025-12-09青岛澳柯玛冷链集成有限公司

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Patent Information

Application Number: CN202423241093.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-12-27
Publication Date: 2025-12-09
Estimated Expiration: 2034-12-27

AI Technical Summary

Technical Problem

The increased temperature during defrosting of the evaporator in the cold storage leads to increased cargo damage, and the failure to effectively treat and utilize the condensate after defrosting results in resource waste.

Method used

Water storage tanks and pools are installed in the cold storage. The condensate produced by the defrosting of the evaporator is collected in the water storage tanks and pools through pipelines. The melting or sublimation of ice absorbs heat and releases cold energy. Combined with the design of fans and shut-off valves, water overflow and freezes, so as to realize the reuse of condensate.

Benefits of technology

It effectively reduces temperature fluctuations in cold storage during defrosting, minimizes cargo damage, and allows for the reuse of condensate, reducing resource waste.

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Abstract

The utility model provides a cold storage utilizing an evaporator defrosting condensate water cold storage technology, and belongs to the field of food storage. The utility model relates to a cold storage utilizing an evaporator defrosting and condensed water cold storage technology, which comprises a cold storage storehouse and a refrigerating system, and is characterized by further comprising a water storage pool and a water storage barrel with an open top opening, and an evaporator of the refrigerating system and the water storage barrel are arranged in the cold storage storehouse; a water inlet port of the water storage barrel is connected with a defrosting condensate water drainage port of the evaporator through a first pipeline, and the water storage pool is arranged outside the cold storage storeroom and connected with the defrosting condensate water drainage port of the evaporator through a second pipeline. A condensed water cold storage technology is adopted during defrosting of the evaporator of the refrigeration house, so that the problems that goods damage is increased due to large warehouse temperature fluctuation during defrosting of the evaporator in the refrigeration house, and resources are wasted due to the fact that condensed water cannot be effectively treated and utilized after the evaporator is defrosted are solved.

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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to the field of cold storage evaporator defrosting technology, specifically referring to a cold storage that utilizes evaporator defrosting condensate storage technology. Background Technology

[0002] With the advancement of technology and the progress of the times, cold storage is widely used in food, chemical, pharmaceutical, vaccine, and scientific research fields. Cold storage achieves cooling by absorbing heat from the storage area through phase changes of the refrigerant within the evaporator. To prevent excessive water loss from fruits and vegetables inside the cold storage, the humidity is typically controlled between 85% and 95% RH (relative humidity). In high humidity and low temperature environments, severe frost buildup occurs between the fins of the evaporator, significantly increasing the thermal resistance and affecting the heat exchange efficiency of the evaporator.

[0003] Generally, defrosting of evaporators is carried out using electric heating or thermal defrosting technology. During defrosting, the temperature inside the cold storage will continue to rise, and the evaporator and evaporation fan will stop working. This will result in more damage to goods that are greatly affected by temperature fluctuations. In addition, a lot of condensate will be generated after defrosting, and the failure to effectively treat and utilize the condensate will lead to resource waste.

[0004] Ice storage technology has been applied in various fields. It stores heat by freezing water into ice, and then releases cold energy by melting or sublimating the ice to absorb heat from the surrounding environment. Furthermore, the condensate produced after defrosting can be reused in the ice storage system, making efficient use of condensate and reducing resource waste. Utility Model Content

[0005] The main purpose of this utility model is to provide a cold storage that utilizes evaporator defrosting condensate storage technology to solve the problems in the prior art where the temperature rises during evaporator defrosting in cold storage, leading to increased cargo damage, and the condensate after defrosting is not effectively treated and utilized, resulting in resource waste.

[0006] To achieve the above objectives, this utility model provides a cold storage facility utilizing evaporator defrosting condensate water storage technology, comprising a cold storage room and a refrigeration system. The facility is characterized by further including a water storage tank and a top-opening water storage container. The evaporator and water storage container of the refrigeration system are located inside the cold storage room. The water inlet of the water storage container is connected to the drain port of the evaporator's defrosting condensate water via a first pipeline. The water storage tank is located outside the cold storage room and is connected to the drain port of the evaporator's defrosting condensate water via a second pipeline.

[0007] Furthermore, a first fan is installed on the side of the evaporator, directly opposite the evaporator.

[0008] Furthermore, a second fan is installed directly above the opening of the water storage tank.

[0009] Furthermore, the outlet of the water storage tank is connected to the water storage pool via a third pipeline.

[0010] Furthermore, the height of the water inlet port of the water storage tank is higher than the height of the water outlet port of the water storage tank.

[0011] Furthermore, a first shut-off valve is installed at the end of the first pipeline near the water storage tank.

[0012] Furthermore, a second shut-off valve is installed at the end of the second pipeline near the water storage tank.

[0013] Furthermore, a third shut-off valve is installed at the end of the third pipeline closest to the water storage tank.

[0014] Furthermore, a water pump is installed on the first pipeline between the first shut-off valve and the water storage tank.

[0015] Furthermore, thermal insulation cotton is installed on the first, second, and third pipelines.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention effectively reduces the temperature rise during evaporator defrosting in cold storage, minimizing cargo damage caused by large temperature fluctuations. Furthermore, it stores the condensate generated during evaporator defrosting in a water tank or reservoir via pipelines, allowing for reuse and reducing resource waste. The design of the shut-off valve and the inlet and outlet ports of the water tank prevents excessive condensate from entering the tank, thus preventing overflow and freezing. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of the cold storage provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the water storage tank according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the water storage tank in Embodiment 2 of this utility model.

[0022] The reference numerals in the above figures are as follows:

[0023] 1. Cold storage room; 2. Evaporator; 3. Water storage tank; 4. Water storage pool; 21. First fan; 31. Second fan; 32. First pipeline; 33. Third pipeline; 34. First shut-off valve; 35. Water pump; 41. Second pipeline; 42. Second shut-off valve; 43. Third shut-off valve; 321. Water inlet port of the water storage tank; 331. Water outlet port of the water storage tank. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments 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.

[0025] Example 1

[0026] like Figure 1 The cold storage facility shown utilizes evaporator defrosting condensate storage technology. By employing condensate storage technology during the defrosting of the cold storage evaporator 2, the loss of goods caused by large temperature fluctuations during defrosting of the evaporator 2 is reduced. At the same time, the condensate generated during the defrosting of the evaporator 2 is collected in a water storage tank 3 or a water storage pool 4 through pipelines, so that the condensate can be reused and resources are reduced.

[0027] To achieve the above objectives, this utility model provides a cold storage facility utilizing evaporator defrosting condensate water storage technology. The facility includes a cold storage room 1 and a refrigeration system, as well as a water storage tank 4 and an open-top water storage container 3. The evaporator 2 and water storage container 3 of the refrigeration system are located inside the cold storage room 1. The water inlet 321 of the water storage container 3 is connected to the drain port of the defrosting condensate water from the evaporator 2 via a first pipeline 32. The water storage tank 4 is located outside the cold storage room 1 and is connected to the drain port of the defrosting condensate water from the evaporator 2 via a second pipeline 41. During the cold storage phase, the cold storage operates normally, providing cooling capacity through the phase change of the refrigerant within the evaporator 2, thus lowering the temperature inside the cold storage room 1. When the temperature reaches or falls below the freezing point of water, the water in the water storage container 3 freezes, achieving the cold storage effect. During the cooling phase, the cold storage stops operating, and defrosting is performed on evaporator 2 using methods such as electric heating. As evaporator 2 defrosts, the temperature of the cold storage rises, and the ice in the water storage tank 3 melts or sublimates, absorbing heat from the surrounding environment and releasing cold energy. This reduces the temperature rise during evaporator 2 defrosting, minimizing damage to goods caused by large temperature fluctuations in the cold storage. The condensate produced during evaporator 2 defrosting first enters the water storage tank 3 through the first pipeline 32. Once the water level in the water storage tank 3 reaches the required level, it then enters the water storage pool 4 through the second pipeline 41.

[0028] Specifically, a first fan 21 is installed on the side of the evaporator 2, directly opposite the evaporator 2. The first fan 21 can radiate the cold energy generated by the evaporator 2 to the surrounding area of the evaporator 2, thereby reducing the temperature of the cold storage room 1.

[0029] Specifically, a second fan 31 is installed directly above the open opening of the water storage tank 3. The open top of the water storage tank 3 enhances heat exchange between the ice inside the water storage tank 3 and the air inside the cold storage room 1. The second fan 31 radiates the cold energy generated by the water storage tank 3 to the surrounding area. The second fan 31 is an upward-blowing fan. The low-temperature air at the top of the water storage tank 3 is blown out by the second fan 31 and comes into contact with the inner top plate of the cold storage room 1. Since the low-temperature air has a relatively high density, it is reflected by the top plate of the cold storage room 1 and sinks from the top of the cold storage room 1, radiating into the interior of the cold storage room 1, thus achieving a top-down gradual cooling of the interior of the cold storage room 1.

[0030] Specifically, the outlet port 331 of the water storage tank 3 is connected to the water storage tank 4 via the third pipeline 33. When the liquid level in the water storage tank 3 is higher than the height of the outlet port 331, the excess water in the water storage tank 3 that is above the top of the outlet port enters the water storage tank 4 through the third pipeline 33 for storage, thus preventing the water storage tank 3 from overflowing and freezing during the cold storage stage due to excessive water in the tank.

[0031] Specifically, the height of the inlet port 321 of the water storage tank 3 is higher than the height of the outlet port 331 of the water storage tank 3. For example... Figure 2 As shown, the first pipeline 32 and the second pipeline 33 are fixed to the bottom of the water storage tank 3. The water inlet port 321 of the water storage tank 3 (i.e., the water outlet port of the first pipeline 32) and the water outlet port 331 of the water storage tank 3 (i.e., the water inlet port of the third pipeline 33) extend from the bottom of the water storage tank 3 into the interior of the water storage tank 3, and the height of the water inlet port 321 of the water storage tank 3 is higher than the height of the water outlet port 331 of the water storage tank 3. When the liquid level in the water storage tank 3 is higher than the height of the water outlet port 331 of the water storage tank 3, the excess water in the water storage tank 3 that is above the water outlet port 331 enters the water storage pool 4 through the third pipeline 33, preventing the water in the water storage tank 3 from overflowing and freezing during the cold storage stage due to excessive water in the water storage tank 3.

[0032] Specifically, a first shut-off valve 34 is installed at one end of the first pipeline 32 near the water storage tank 3. When the first shut-off valve 34 is opened, the condensate generated by the defrosting of the evaporator 2 enters the water storage tank 3 through the first pipeline 32.

[0033] Specifically, a second shut-off valve 42 is installed at one end of the second pipeline 41 near the water storage tank 4. When the first shut-off valve 34 is closed and the second shut-off valve 42 is open, the condensate generated by the defrosting of the evaporator 2 enters the water storage tank 4 through the second pipeline 41.

[0034] Specifically, a third shut-off valve 43 is installed at one end of the third pipeline 33 near the water storage tank 4. When the third shut-off valve 43 is opened, a portion of the water in the water storage tank 3 that is above the outlet port 331 of the water storage tank 3 enters the water storage tank 4 through the third pipeline 33 for storage, thus preventing the water in the water storage tank 3 from overflowing and freezing during the cold storage stage due to excessive water in the water storage tank 3.

[0035] Specifically, a water pump 35 is installed on the first pipeline 32 between the first shut-off valve 34 and the water storage tank 3. The water pump is used to provide power. During the cooling stage, the temperature of the cold storage room 1 rises, the evaporator 2 defrosts and produces condensate, the first shut-off valve 34 opens, the water pump 35 starts to work, and the defrosting condensate from the evaporator 2 enters the water storage tank 3 through the first pipeline 32. When the liquid level in the water storage tank 3 is consistent with the height of the water outlet 331 of the water storage tank 3, the first shut-off valve 34 closes, the water pump 35 stops working, the second shut-off valve 42 and the third shut-off valve 43 open, and the defrosting condensate from the evaporator 2 enters the water storage pool 4 through the second pipeline 41 for storage. The excess water after the ice melts in the water storage tank 3 enters the water storage pool 4 for storage through the third pipeline 33.

[0036] Specifically, insulation cotton is installed on the first pipeline 32, the second pipeline 41, and the third pipeline 33. The insulation cotton can prevent the condensate inside the pipeline from freezing and causing ice blockage due to excessively low temperature.

[0037] The specific working state of the cold storage facility utilizing evaporator defrosting condensate cold storage technology provided by this utility model is as follows:

[0038] During the cold storage stage, the cold storage operates normally, generating cooling capacity through the phase change of the refrigerant in the evaporator 2. The cooling capacity generated by the evaporator 2 is then dispersed into the interior of the cold storage room 1 by the first fan 21, thereby lowering the temperature of the cold storage room 1. When the temperature inside the cold storage room 1 reaches or falls below the freezing point of water, the water in the storage tank 3 freezes, transferring heat to the surrounding environment and storing the cooling capacity, thus achieving the cold storage effect.

[0039] During the cooling phase, the evaporator 2 is defrosted using electric heating or hot refrigerant. As the cold storage temperature rises, the ice in the water storage tank 3 melts, absorbing heat from the surrounding environment and generating cooling energy. The second fan 31 operates, dispersing the cooling energy generated by the water storage tank 3 into the interior of the cold storage room 1, achieving top-down cooling of the cold storage room 1 and preventing excessive temperature rise inside the cold storage room 1, thus reducing cargo damage caused by temperature increases. Simultaneously, the first shut-off valve 34 opens, and the water pump 35 starts working. The condensate generated by the defrosting of the evaporator 2 enters the water storage tank 3 through the first pipeline 32 for storage and utilization. When the liquid level in the water storage tank 3 is consistent with the height of the water outlet 331 of the water storage tank 3, the first shut-off valve 34 closes, and the second shut-off valve 42 and the third shut-off valve 43 open. The condensate generated by the defrosting of the evaporator 2 enters the water storage tank 4 through the second pipeline 41 for storage, and the excess water in the water storage tank 3 is discharged into the water storage tank 4 through the third pipeline 33 for storage.

[0040] Example 2

[0041] like Figure 3 As shown, the height of the inlet port 321 of the water storage tank 3 is higher than the height of the outlet port 331 of the water storage tank 3. Unlike Embodiment 1, in Embodiment 2, the first pipeline 32 and the third pipeline 33 are fixed to the side wall of the water storage tank 3. The inlet port 321 of the water storage tank 3 (i.e., the outlet port of the first pipeline 32) and the outlet port 331 of the water storage tank 3 (i.e., the inlet port of the third pipeline 33) are set on the side wall of the water storage tank 3. They do not need to extend from the side wall of the water storage tank 3 into the interior of the water storage tank 3. This avoids the pipeline from being squeezed by the freezing water inside the water storage tank 3 due to the pipeline being set inside the water storage tank 3, which could cause the pipeline to break, thus reducing the maintenance cost of the pipeline.

[0042] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A cold storage facility utilizing evaporator defrosting and condensate storage technology, comprising a cold storage room and a refrigeration system, characterized in that, It also includes a water storage tank and a top-opening water storage bucket. The evaporator of the refrigeration system and the water storage bucket are located inside the cold storage room. The water inlet of the water storage bucket is connected to the defrost condensate drain port of the evaporator through a first pipeline. The water storage tank is located outside the cold storage room and is connected to the defrost condensate drain port of the evaporator through a second pipeline.

2. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 1, characterized in that, The first fan is located on the side of the evaporator, directly opposite the evaporator.

3. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 1, characterized in that, A second fan is installed directly above the open opening of the water storage tank.

4. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 3, characterized in that, The outlet of the water storage tank is connected to the water storage pool via a third pipeline.

5. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 4, characterized in that, The height of the water inlet port of the water storage tank is higher than the height of the water outlet port of the water storage tank.

6. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 5, characterized in that, A first shut-off valve is installed at the end of the first pipeline near the water storage tank.

7. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 6, characterized in that, A second shut-off valve is installed at the end of the second pipeline near the water storage tank.

8. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 7, characterized in that, A third shut-off valve is installed at the end of the third pipeline closest to the water storage tank.

9. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 8, characterized in that, A water pump is installed on the first pipeline between the first shut-off valve and the water storage tank.

10. A cold storage facility utilizing evaporator defrosting condensate storage technology according to claim 9, characterized in that, Insulation cotton is installed on the first, second, and third pipelines.