Anti-frosting structure of refrigeration house

Abstract

The utility model discloses an anti-frosting structure of a refrigeration house in the technical field of refrigeration house equipment, which comprises an aluminum-zinc-plated steel plate, a metal framework is arranged on one side of the aluminum-zinc-plated steel plate, an aerogel felt is arranged on one side of the metal framework, a vacuum insulation plate is arranged on one side of the aerogel felt, a micro-channel heat pipe is arranged on one side of the vacuum insulation plate, and the micro-channel heat pipe is arranged on one side of the micro-channel heat pipe. A polyurethane foaming layer is arranged on one side of the vacuum heat insulation plate, a nanometer hydrophobic aluminum foil layer is arranged on one side of the polyurethane foaming layer, a carbon nano tube electric heating film is arranged on the surface of one side of the nanometer hydrophobic aluminum foil layer, and multiple sets of dew point sensors are installed on the surface of the carbon nano tube electric heating film in an embedded mode. Cold bridge heat can be continuously guided out through the arranged micro-channel heat pipe, the active defrosting frequency is reduced, the carbon nano tube electric heating film arranged in a gridding mode is matched with the dew point sensor, accurate local defrosting can be achieved, energy consumption is reduced, the nanometer hydrophobic aluminum foil layer can reduce the ice crystal adhesive force, the frosting amount is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of cold storage equipment, specifically relating to a cold storage anti-condensation structure. Background Technology

[0002] Cold storage is a type of constant-temperature storage equipment that creates a specific temperature and humidity environment through artificial refrigeration. It is mainly used for storing food, medicine, chemicals, and other items that require low-temperature preservation. Cold storage frost refers to the frost phenomenon that appears inside the cold storage or on the surface of refrigeration equipment. When water vapor in the air condenses into frost in a low-temperature environment, it commonly occurs in cold storage, refrigerated cabinets, and other refrigeration equipment. This not only affects the storage and preservation of items inside the cold storage but also adversely impacts the normal operation of the cold storage equipment.

[0003] Existing methods for preventing condensation in cold storage have the following drawbacks:

[0004] 1. Cold bridge condensation: The metal skeleton conducts heat to form a low temperature point, and the condensation thickness gradually increases, thereby increasing the structural load.

[0005] 2. High energy consumption for defrosting: Electric defrosting accounts for 15-25% of the total power consumption of cold storage, and the temperature fluctuation of +3°C affects the quality of goods.

[0006] 3. Insulation failure: After the frost melts, moisture seeps into the polyurethane insulation layer, and the thermal conductivity increases from 0.022 to 0.035 W / (m·K);

[0007] 4. Structural corrosion: Condensation corrodes steel structures, shortening their lifespan to 10-15 years. To address this, we propose an anti-condensation structure for cold storage. Utility Model Content

[0008] The purpose of this invention is to provide a cold storage anti-condensation structure to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a cold storage anti-condensation structure, comprising an aluminized zinc-coated steel plate, a metal frame on one side of the aluminized zinc-coated steel plate, an aerogel felt on one side of the metal frame, a vacuum insulation board on one side of the aerogel felt, a microchannel heat pipe on one side of the vacuum insulation board, a polyurethane foam layer on one side of the vacuum insulation board, and a nano-hydrophobic aluminum foil layer on one side of the polyurethane foam layer.

[0010] Preferably, a carbon nanotube electrothermal film is disposed on one side surface of the nano-hydrophobic aluminum foil layer, and multiple dew point sensors are embedded in the surface of the carbon nanotube electrothermal film.

[0011] Preferably, the aluminized zinc steel plate is the outer layer, and a metal frame is fixedly connected to the inner side of the aluminized zinc steel plate, with the aerogel felt covering the surface of the metal frame.

[0012] Preferably, multiple sets of vacuum insulation panels are fixedly connected to one side of the aerogel felt, and the vacuum insulation panels are spliced ​​together with staggered joints. The microchannel heat pipes are embedded in the joints between the vacuum insulation panels.

[0013] Preferably, a polyurethane foam layer is fixedly connected to one side of the vacuum insulation panel, and a nano-hydrophobic aluminum foil layer is pressed and connected to the surface of the polyurethane foam layer.

[0014] Preferably, the carbon nanotube electrothermal film is divided into multiple independent grids.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The microchannel heat pipes can continuously remove heat from cold bridges, reducing the frequency of active defrosting. The gridded carbon nanotube electrothermal film, combined with a dew point sensor, can precisely defrost localized areas, reducing energy consumption. The nano-hydrophobic aluminum foil layer can reduce ice crystal adhesion, reduce frost buildup, and extend the device's lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pulsed electrothermal film structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the vacuum insulation panel structure of this utility model.

[0021] In the figure: 1. Aluminized zinc steel plate; 2. Metal frame; 3. Aerogel felt; 4. Vacuum insulation panel; 5. Microchannel heat pipe; 6. Polyurethane foam layer; 7. Nano-hydrophobic aluminum foil layer; 8. Carbon nanotube electrothermal film; 9. Dew point sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a cold storage anti-condensation structure, including an aluminized zinc steel plate 1, a metal frame 2 on one side of the aluminized zinc steel plate 1, an aerogel felt 3 on one side of the metal frame 2, a vacuum insulation board 4 on one side of the aerogel felt 3, a microchannel heat pipe 5 on one side of the vacuum insulation board 4, a polyurethane foam layer 6 on one side of the vacuum insulation board 4, and a nano-hydrophobic aluminum foil layer 7 on one side of the polyurethane foam layer 6.

[0024] Specifically, a carbon nanotube electrothermal film 8 is arranged on one side of the surface of the nano-hydrophobic aluminum foil layer 7, and multiple dew point sensors 9 are embedded in the surface of the carbon nanotube electrothermal film 8.

[0025] Specifically, the aluminum-zinc coated steel plate 1 is the outer layer, and a metal frame 2 is fixedly connected to the inner side of the aluminum-zinc coated steel plate 1. Aerogel felt 3 covers the surface of the metal frame 2.

[0026] Specifically, multiple sets of vacuum insulation panels 4 are fixedly connected to one side of the aerogel felt 3. The vacuum insulation panels 4 are spliced ​​together with staggered joints, and the microchannel heat pipes 5 are embedded in the joints of the vacuum insulation panels 4.

[0027] Specifically, a polyurethane foam layer 6 is fixedly connected to one side of the vacuum insulation panel 4, and a nano-hydrophobic aluminum foil layer 7 is pressed and connected to the surface of the polyurethane foam layer 6.

[0028] Specifically, the carbon nanotube electrothermal film is divided into multiple independent grids, each grid being 100*100mm.

[0029] In this embodiment, the evaporation end of the microchannel heat pipe 5 is connected to the cold source inside the cold storage, while the condensation end is connected to external heat dissipation fins. All components of the device are connected to an external controller terminal. The grid-like carbon nanotube electric heating film 8, together with the high-precision dew point sensor 9, can monitor the temperature of the inner surface of the cold storage in real time and achieve independent temperature control in different zones. The operation of the carbon nanotube electric heating film 8 will be dynamically started and stopped based on the temperature difference of the surface. When the humidity of the wall surface is detected to be greater than 85%, the carbon nanotube electric heating film 8 will preheat to eliminate condensation nuclei and then maintain a constant temperature until the humidity is less than 70%. The microchannel heat pipe 5 continuously discharges cold bridge heat to maintain the uniformity of the surface temperature. The aerogel felt 3 will block the heat transfer of the metal skeleton 2, and the vacuum insulation board 4 has an active heat preservation effect.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold storage anti-condensation structure, comprising an aluminized zinc-coated steel sheet (1), characterized in that: A metal frame (2) is provided on one side of the aluminized zinc steel plate (1), an aerogel felt (3) is provided on one side of the metal frame (2), a vacuum insulation board (4) is provided on one side of the aerogel felt (3), a microchannel heat pipe (5) is provided on one side of the vacuum insulation board (4), a polyurethane foam layer (6) is provided on one side of the vacuum insulation board (4), and a nano-hydrophobic aluminum foil layer (7) is provided on one side of the polyurethane foam layer (6).

2. The cold storage anti-condensation structure according to claim 1, characterized in that: A carbon nanotube electrothermal film (8) is provided on one side surface of the nano-hydrophobic aluminum foil layer (7), and multiple dew point sensors (9) are embedded in the surface of the carbon nanotube electrothermal film (8).

3. The anti-condensation structure for cold storage according to claim 1, characterized in that: The aluminum-zinc coated steel plate (1) is the outer layer, and a metal skeleton (2) is fixedly connected to the inner side of the aluminum-zinc coated steel plate (1). The aerogel felt (3) covers the surface of the metal skeleton (2).

4. The anti-condensation structure for cold storage according to claim 1, characterized in that: Multiple sets of vacuum insulation panels (4) are fixedly connected to one side of the aerogel felt (3). The vacuum insulation panels (4) are spliced ​​together with staggered joints. The microchannel heat pipe (5) is embedded in the joint between the vacuum insulation panels (4).

5. The anti-condensation structure for cold storage according to claim 1, characterized in that: A polyurethane foam layer (6) is fixedly connected to one side of the vacuum insulation board (4), and a nano-hydrophobic aluminum foil layer (7) is pressed and connected to the surface of the polyurethane foam layer (6).

6. The anti-condensation structure for cold storage according to claim 2, characterized in that: The carbon nanotube electrothermal film (8) is divided into multiple independent grids.

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