Heat insulation device suitable for defrosting of air cooler

Abstract

The utility model discloses a heat insulation device suitable for defrosting of an air cooler. The heat insulation device comprises a front heat insulation assembly integrated at the air outlet end of the front end of the air cooler. The rear heat insulation assembly is integrated at the air inlet end of the rear end of the air cooler; the front heat insulation assembly is provided with a front heat insulation plate capable of rotating relative to the air cooler, and the air outlet end of the air cooler is opened or closed through rotation of the front heat insulation plate. The rear heat insulation assembly is provided with a rear heat insulation plate capable of rotating relative to the air cooler, and the air inlet end of the air cooler is opened or closed through rotation of the rear heat insulation plate. The heat insulation device further comprises a PLC, and the front heat insulation assembly and the rear heat insulation assembly are both controlled by the PLC. The heat insulation device is suitable for heat insulation during defrosting of the air cooler in high and low temperature refrigeration and freezing processing, the defrosting efficiency of the air cooler can be greatly improved, and no adverse effect is caused to a cold room during defrosting.

Description

Technical Field

[0001] The utility model relates to the technical field of defrosting of air coolers in high and low temperature refrigeration and freezing processing, and in particular to a heat insulation device suitable for defrosting of air coolers, which can reduce heat loss during defrosting of the air coolers, improve the defrosting efficiency of the air coolers, shorten the defrosting time and save energy consumption of the refrigeration system. Background Art

[0002] With economic development and the continuous growth of urban populations, people's consumption levels have continued to rise. In recent years, industries such as agricultural product processing, pre-prepared meals, and biopharmaceuticals have developed rapidly. At the same time, driven by consumption upgrades and the deep integration of e-commerce cold chain logistics with artificial intelligence and big data, social demand for refrigerated and frozen foods has seen explosive growth. The resulting energy consumption of the refrigeration and freezing industry cannot be ignored. How to develop green and environmentally friendly refrigeration and reduce energy consumption is an unavoidable challenge.

[0003] In the refrigeration and freezing process, defrosting of the air cooler is an essential part. The disadvantages brought by low defrosting efficiency are:

[0004] 1. A large amount of heat used for defrosting is diffused into the cold room, which prolongs the defrosting time;

[0005] 2. Cause the temperature of the cold room to fluctuate frequently, affecting the quality of stored goods;

[0006] 3. This heat dissipated to the cold room requires additional cooling power. For example, for a low-temperature storage air cooler with a heat exchange area of ​​only 100 m2, its electric defrost power P = 15 kW, dissipating approximately 4 kW of heat to the cold room. This results in an additional 2 kW of power consumed by the refrigeration system, meaning the heat dissipation increases power consumption by 6 kW.

[0007] Therefore, based on the above technical problems, technicians in this field urgently need to develop a heat insulation device suitable for defrosting air coolers. Utility Model Content

[0008] The purpose of the utility model is to provide a heat insulation device suitable for defrosting of an air cooler, which can improve the defrosting efficiency, reduce the adverse effects of frequent temperature fluctuations in the cold room on stored food, and save energy consumption of the refrigeration system.

[0009] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0010] The utility model provides a heat insulation device suitable for defrosting an air cooler, the heat insulation device comprising:

[0011] A front heat insulation assembly integrated at the air outlet of the front end of the air cooler; and

[0012] A rear heat insulation assembly integrated into the air inlet end of the rear end of the air cooler;

[0013] The front heat insulation assembly has a front heat insulation plate that can rotate relative to the air cooler, and the air outlet end of the air cooler is opened or closed by rotating the front heat insulation plate;

[0014] The rear heat insulation assembly has a rear heat insulation plate that can rotate relative to the air cooler, and the air inlet end of the air cooler is opened or closed by the rotation of the rear heat insulation plate;

[0015] The heat insulation device also includes a PLC controller, and the front heat insulation component and the rear heat insulation component are both controlled by the PLC controller.

[0016] Furthermore, the front heat insulation assembly includes:

[0017] The front heat insulation plate is hinged to the air outlet end of the air cooler, and the front heat insulation plate is rotatably connected to the lower part of the air outlet end of the air cooler via a front rotating shaft; and

[0018] a front reduction motor connected to the front heat shield and driving the front heat shield to rotate around the front rotation axis;

[0019] When the air outlet at the front end of the air cooler is opened, the front heat insulation plate rotates downward to a position parallel to the air outlet of the air cooler;

[0020] When the air outlet at the front end of the air cooler is closed, the front heat insulation plate rotates upward to a position where it contacts the upper end of the air outlet of the air cooler;

[0021] A front travel switch is provided on the upper portion of the front end of the air cooler;

[0022] When the front heat shield rotates upward to contact the front travel switch, the PLC controller controls the front reduction motor to stop working and maintain the position of the front heat shield.

[0023] Furthermore, the rotation angle range of the front heat shield is 0°-100°.

[0024] Furthermore, the rear heat insulation assembly includes:

[0025] The rear heat insulation plate is hinged to the air inlet end of the air cooler, and the rear heat insulation plate is rotatably connected to the upper part of the air inlet end of the air cooler via a rear rotating shaft; and

[0026] a rear reduction motor connected to the rear heat shield and driving the rear heat shield to rotate around the rear rotation axis;

[0027] When the air inlet end of the rear end of the air cooler is opened, the rear heat insulation plate rotates upward to the rear side of the air cooler;

[0028] When the air inlet end of the rear end of the air cooler is closed, the rear heat insulation plate rotates downward to a position where it contacts the lower end of the air inlet end of the air cooler;

[0029] A rear travel switch is provided on the upper portion of the rear end of the air cooler;

[0030] When the rear heat shield rotates downward to contact the rear travel switch, the PLC controller controls the rear reduction motor to stop working and maintain the position of the rear heat shield.

[0031] Furthermore, the rotation angle range of the rear heat insulation plate is 0°-45°.

[0032] In the above technical solution, the utility model provides a heat insulation device suitable for defrosting an air cooler, which has the following beneficial effects:

[0033] The heat insulation device of the utility model is suitable for heat insulation during defrosting of the cold air blower in high and low temperature refrigeration and freezing processing, which can greatly improve the defrosting efficiency of the cold air blower and hardly cause any adverse effects on the cold room during defrosting. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0035] Figure 1 The present invention is a schematic structural diagram of a heat insulation device suitable for defrosting an air cooler disclosed in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 10. Warehouse body;

[0038] 1. Air cooler; 2. Front insulation assembly; 3. Rear insulation assembly; 4. PLC controller;

[0039] 101, air inlet; 102, air outlet;

[0040] 201, front heat shield; 202, front reduction motor; 203, front rotating shaft; 204, front travel switch; 301, rear heat shield; 302, rear reduction motor; 303, rear rotating shaft; 304, rear travel switch. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] See also Figure 1 As shown;

[0043] A heat insulation device suitable for defrosting an air cooler according to this embodiment includes:

[0044] A front heat insulation assembly 2 integrated into the air outlet 102 at the front end of the air cooler 1; and

[0045] A rear heat insulation assembly 3 integrated into the air inlet end 101 at the rear end of the air cooler 1;

[0046] The front heat insulation assembly 2 has a front heat insulation plate 201 that can rotate relative to the air cooler 1. The air outlet end 102 of the air cooler 1 is opened or closed by the rotation of the front heat insulation plate 201.

[0047] The rear heat insulation assembly 3 has a rear heat insulation plate 301 that can rotate relative to the air cooler 1. The air inlet end 101 of the air cooler 1 is opened or closed by the rotation of the rear heat insulation plate 301.

[0048] The thermal insulation device also includes a PLC controller 4 , and both the front thermal insulation component 2 and the rear thermal insulation component 3 are controlled by the PLC controller 4 .

[0049] Specifically, the heat insulation device of this embodiment is mainly divided into a front heat insulation component 2 arranged on the side of the front air outlet end 102 of the air cooler 1 and a rear heat insulation component 3 arranged on the side of the rear air inlet end 101 of the air cooler 1; wherein, the device of this embodiment is suitable for using a heat source to defrost the air cooler 1, and is designed with a PLC controller 4 that can control the operation of the front heat insulation component 2 and the rear heat insulation component 3 respectively.

[0050] The front heat insulation component 2 of this embodiment has a rotatable front heat insulation plate 201, and the rear heat insulation component 3 has a rotatable rear heat insulation plate 301; when the defrost controller of the air cooler 1 has no defrost signal, the front heat insulation plate 201 is at the lower end position of the air cooler 1 and the air outlet end 102 is open, and the rear heat insulation plate 301 is at the rear side position of the air cooler 1 and the air inlet end 101 is open. At this time, there are only two situations. The first is that the air cooler 1 is not running at all; the second is that the air cooler 1 is in cooling operation. At this time, air can enter from the air inlet end 101 of the air cooler 1 and be discharged from the air outlet end 102 of the air cooler 1.

[0051] Preferably, the front heat insulation assembly 2 of this embodiment includes:

[0052] A front heat shield 201 hinged to the air outlet end 102 of the air cooler 1, wherein the front heat shield 201 is rotatably connected to the lower portion of the air outlet end 102 of the air cooler 1 via a front rotating shaft 203; and

[0053] A front reduction motor 202 connected to the front heat shield 201 and driving the front heat shield 201 to rotate around a front rotation axis 203;

[0054] When the air outlet 102 at the front end of the air cooler 1 is opened, the front heat insulation plate 201 rotates downward to a position parallel to the air flow of the air outlet 102 of the air cooler 1;

[0055] When the air outlet 102 at the front end of the air cooler 1 is closed, the front heat insulation plate 201 rotates upward to a position where it contacts the upper end of the air outlet 102 of the air cooler 1;

[0056] A front travel switch 204 is provided at the upper portion of the front end of the air cooler 1;

[0057] When the front heat shield 201 rotates upward and contacts the front travel switch 204 , the PLC controller 4 controls the front reduction motor 202 to stop working and maintain the position of the front heat shield 201 .

[0058] The rotation angle range of the front heat shield 201 in this embodiment is 0°-100°.

[0059] First, this embodiment further defines the structure of the front heat insulation assembly 2, which includes a front reduction motor 202, a front heat insulation plate 201, and a front travel switch 204. The front heat insulation assembly 2 of this embodiment is controlled by a PLC controller 4. The front heat insulation plate 201 is rotatably connected to the lower portion of the air outlet end 102 of the air cooler 1 via a front rotating shaft 203, and is driven to rotate by the front reduction motor 202. In the mechanical field, the front reduction motor 202 driving the plate body to rotate is relatively conventional. Therefore, this part is not further defined as a major structural design point of this application. Instead, all drive mechanisms capable of driving the front heat insulation plate 201 to rotate meet the requirements of this application. The upper portion of the air outlet end 102 of the air cooler 1 has a front travel switch 204. When the front heat insulation plate 201 rotates to a state that closes the air outlet end 102, the front travel switch 204 contacts the front travel switch 204 and sends a signal to the PLC controller 4, which controls the front reduction motor 202 to stop working. According to the setting position and structure of the front heat insulation assembly 2 of this embodiment, the rotation angle range of the front heat insulation board 201 of this embodiment is 0° to 100°.

[0060] Preferably, the rear heat insulation assembly 3 of this embodiment includes:

[0061] A rear heat insulation plate 301 hinged to the air inlet end 101 of the air cooler 1, wherein the rear heat insulation plate 301 is rotatably connected to the upper portion of the air inlet end 101 of the air cooler 1 via a rear rotating shaft 303; and

[0062] a rear reduction motor 302 connected to the rear heat shield 301 and driving the rear heat shield 301 to rotate about a rear rotation axis 303;

[0063] When the air inlet end 101 at the rear end of the air cooler 1 is opened, the rear heat insulation plate 301 rotates upward to the rear side of the air cooler 1;

[0064] When the air inlet end 101 at the rear end of the air cooler 1 is closed, the rear heat insulation plate 301 rotates downward to a position where it contacts the lower end of the air inlet end 101 of the air cooler 1;

[0065] A rear travel switch 304 is provided on the upper portion of the rear end of the air cooler 1;

[0066] When the rear heat shield 301 rotates downward to contact the rear travel switch 304 , the PLC controller 4 controls the rear reduction motor 302 to stop working and maintain the position of the rear heat shield 301 .

[0067] The rotation angle range of the rear heat insulation plate 301 in this embodiment is 0°-45°.

[0068] This embodiment further defines the structure and principle of the rear heat insulation assembly 3, which is similar to the structure and principle of the front heat insulation assembly 2. The difference is that, based on the shape of the air inlet end 101 of the air cooler 1, the rear heat insulation plate 301 is configured to rotate downward to close the air inlet end 101. In this embodiment, the rotation angle range of the rear heat insulation plate 301 is 0° to 45°.

[0069] When the defrost controller receives the defrost signal, the front reduction motor 202 and the rear reduction motor 302 begin to operate. First, the front reduction motor 202 rotates the front heat shield 201 via the front rotating shaft 203 until the end of the front heat shield 201 touches the front travel switch 204, stopping and closing the front heat shield 204. Subsequently, the rear reduction motor 302 rotates the rear heat shield 301 via the rear rotating shaft 303 until the end of the rear heat shield 301 touches the rear travel switch 304, stopping and closing the heat shield 301.

[0070] The heat insulation device of this embodiment is suitable for the air cooler 1 in high and low temperature cold storage and cold processing room (cold room temperature -60 ~ 15 ℃), including ammonia, Freon, carbon dioxide and other direct evaporation air coolers for defrosting. After the air cooler 1 has been running for a period of time, a certain thickness of frost will accumulate on the heat exchange coil and fins, resulting in a decrease in the heat exchange efficiency of the air cooler 1, so it is necessary to remove the frost layer in some way. The usual way is to use a heat source to melt the frost layer, including using electric heating, exhaust gas from the high-pressure side of the refrigeration system, etc. During the thermal defrosting process, about 40% is dissipated into the cold room, causing many adverse effects. Therefore, a heat insulation board can be used to isolate the high-temperature heat exchange coil and fins from the surrounding low-temperature environment to improve the defrosting efficiency and avoid adverse effects.

[0071] As an expanded implementation, the front insulation board 201 and the rear insulation board 301 of this embodiment can be made of thermal insulation materials or other low-density, lightweight insulation materials. Furthermore, the shape and specific connection structure are not exclusive limitations; other similar structures and shapes with the same functions and principles are also within the scope of this application.

[0072] In the above technical solution, the utility model provides a heat insulation device suitable for defrosting an air cooler, which has the following beneficial effects:

[0073] The heat insulation device of the utility model is suitable for heat insulation during defrosting of the cold air blower in high and low temperature refrigeration and freezing processing, which can greatly improve the defrosting efficiency of the cold air blower and hardly cause any adverse effects on the cold room during defrosting.

[0074] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat insulation device suitable for defrosting a cold air machine, characterized in that: The thermal insulation device comprises: A front heat insulation component (2) integrated at the air outlet (102) at the front end of the air cooler (1); and A rear heat insulation component (3) integrated at the air inlet end (101) at the rear end of the air cooler (1); The front heat insulation component (2) has a front heat insulation plate (201) that can rotate relative to the air cooler (1), and the air outlet end of the air cooler (1) is opened or closed by the rotation of the front heat insulation plate (201); The rear heat insulation assembly (3) has a rear heat insulation plate (301) that can rotate relative to the air cooler (1), and the air inlet end (101) of the air cooler (1) is opened or closed by the rotation of the rear heat insulation plate (301); The heat insulation device also includes a PLC controller (4), and the front heat insulation component (2) and the rear heat insulation component (3) are both controlled by the PLC controller (4).

2. A heat insulation device suitable for defrosting an air cooler according to claim 1, characterized in that: The front heat insulation assembly (2) comprises: The front heat insulation plate (201) is hinged to the air outlet end (102) of the air cooler (1), and the front heat insulation plate (201) is rotatably connected to the lower part of the air outlet end (102) of the air cooler (1) via a front rotating shaft (203); and A front reduction motor (202) connected to the front heat insulation plate (201) and driving the front heat insulation plate (201) to rotate around the front rotation axis (203); When the air outlet (102) at the front end of the air cooler (1) is opened, the front heat insulation plate (201) rotates downward to a position parallel to the air flow of the air outlet (102) of the air cooler (1); When the air outlet (102) at the front end of the air cooler (1) is closed, the front heat insulation plate (201) rotates upward to a position where it contacts the upper end of the air outlet (102) of the air cooler (1); A front travel switch (204) is provided at the upper portion of the front end of the cooling fan (1); When the front heat shield (201) rotates upwards until it contacts the front travel switch (204), the PLC controller (4) controls the front reduction motor (202) to stop working and maintain the position of the front heat shield (201).

3. A heat insulation device suitable for defrosting an air cooler according to claim 2, characterized in that: The rotation angle range of the front heat insulation plate (201) is 0°-100°.

4. A heat insulation device suitable for defrosting an air cooler according to claim 1, characterized in that: The rear heat insulation assembly (3) comprises: The rear heat insulation plate (301) is hinged to the air inlet end (101) of the air cooler (1), and the rear heat insulation plate (301) is rotatably connected to the upper part of the air inlet end (101) of the air cooler (1) via a rear rotating shaft (303); and A rear reduction motor (302) connected to the rear heat insulation plate (301) and driving the rear heat insulation plate (301) to rotate around the rear rotation axis (303); When the air inlet end (101) at the rear end of the air cooler (1) is opened, the rear heat insulation plate (301) rotates upward to the rear side of the air cooler (1); When the air inlet end (101) at the rear end of the air cooler (1) is closed, the rear heat insulation plate (301) rotates downward to a position where it contacts the lower end of the air inlet end (101) of the air cooler (1); A rear travel switch (304) is provided at the upper portion of the rear end of the cooling fan (1); When the rear heat insulation plate (301) rotates downward until it contacts the rear travel switch (304), the PLC controller (4) controls the rear reduction motor (302) to stop working and maintain the position of the rear heat insulation plate (301).

5. A heat insulation device suitable for defrosting an air cooler according to claim 4, characterized in that: The rotation angle range of the rear heat insulation plate (301) is 0°-45°.

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