A double-circulation air cooling system and its installation structure

Abstract

The present invention proposes a dual-circulation air cooling system, including: a refrigeration unit, and an air supply duct and a return air duct; the cold air output by the refrigeration unit is output through the air supply duct and refluxed by the return air duct to become the air intake source of the refrigeration unit to form an air flow cycle; the air supply duct has at least two circumferentially arranged air outlets, and the return air duct has at least two circumferentially arranged return air outlets on the periphery of the air supply duct, and each return air outlet is arranged one-to-one with each air outlet. The present invention proposes a dual-circulation air cooling system installation structure, including: a freezing space and a dual-circulation air cooling system as described above, the air supply duct is arranged in the freezing space, and its air outlets are respectively facing different directions of the freezing space; the return air outlet of the return air duct is connected to the freezing space, and each return air outlet is arranged along the peripheral wall of the freezing space and corresponds one-to-one with each air outlet. The present invention shortens the air flow circulation path, improves the air flow circulation speed, accelerates the refrigeration efficiency, and ensures the uniformity of the temperature in the space.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration systems, and in particular to a double-circulation air cooling system and an installation structure thereof. Background Art

[0002] With the development of the times, people's living standards have been greatly improved. In the past, there was no good place to store food, so food was easy to spoil. Now there are freezers, which provide a good fresh-keeping environment for food. However, for some freezers with larger space, higher or longer space, the single-cycle refrigeration system equipped with existing freezers has a long circulation path and slow circulation speed of the cold air blown out in the freezer, which makes the existing large-space freezers have problems of slow cooling speed and uneven temperature distribution. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a dual-circulation air cooling system and an installation structure thereof.

[0004] A dual-circulation air cooling system proposed in the present invention comprises: a refrigeration unit for outputting cold air, and an air supply duct and an air return duct;

[0005] The cold air output by the refrigeration unit is output through the supply air duct and flows back through the return air duct to become the air intake source of the refrigeration unit to form an air flow circulation; the supply air duct has at least two circumferentially arranged air outlets, and the return air duct has at least two circumferentially arranged return air outlets on the periphery of the supply air duct, and each return air outlet is arranged one-to-one correspondingly to each air outlet.

[0006] Preferably, the air supply duct is a plate-like structural member having an air flow channel inside, and the air outlets are respectively located on different side walls of the plate-like structural member and are connected to the air flow channel inside the plate-like structural member.

[0007] Preferably, there are two air outlets, which are respectively located on two opposite surfaces of the plate-like structural member.

[0008] Preferably, there are four air outlets, which are respectively located on four sides of the plate-like structural member.

[0009] Preferably, a honeycomb perforated plate is installed at the air outlet.

[0010] Preferably, in the circumferential direction, a barrier is provided between every two adjacent air outlets to prevent the two adjacent air flows from interfering with each other.

[0011] The present invention proposes a dual-circulation air cooling system installation structure, comprising: a refrigeration space that requires the input of cold air and the dual-circulation air cooling system as described above, wherein the air supply duct is arranged in the refrigeration space, and its air outlets are respectively directed to different directions of the refrigeration space; the return air outlet of the return air duct is connected to the refrigeration space, and each return air outlet is arranged along the peripheral wall of the refrigeration space and corresponds one-to-one to each air outlet.

[0012] Preferably, the freezing space has a switch door, and the air outlet is located at the position of the switch door so that the blown air flow can form an air curtain on the inner side of the switch door.

[0013] Preferably, the air supply duct is centrally arranged in the freezing space and divides the freezing space into at least two compartments, and each air outlet of the air supply duct faces each compartment respectively.

[0014] Preferably, the air supply duct is centrally arranged in the freezing space and divides the freezing space into compartments located on both sides thereof, and the air supply duct has two air outlets, which face the two compartments respectively.

[0015] Preferably, the air supply duct is centrally arranged in the freezing space and divides the freezing space into three circumferentially arranged compartments. The air supply duct has three air outlets, and the three air outlets face two of the three compartments respectively.

[0016] The present invention proposes a dual-circulation air cooling system and its installation structure, by making its supply air duct have at least two circumferentially arranged air outlets, and making its return air duct have at least two circumferentially arranged return air outlets on the outer periphery of the air outlets, and making each return air outlet correspond to each air outlet one by one, so that the cold air output by the refrigeration unit is blown out from each air outlet and then uniformly returned to the return air duct from its corresponding return air outlet as the air source of the refrigeration unit. In this way, an air flow circulation area is formed between each air outlet and the corresponding return air outlet, thereby shortening the air flow circulation path, improving the air flow circulation speed, accelerating the refrigeration efficiency, ensuring the uniformity of temperature in the space, and then solving the problems of slow cooling speed and uneven temperature distribution caused by large space and long circulation path. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a dual-circulation air cooling system proposed by the present invention.

[0018] Figure 2 This is a structural schematic diagram of a dual-circulation air cooling system installation structure proposed by the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1, reference Figure 1 The present invention proposes a dual-circulation air cooling system, comprising: a refrigeration unit 1 for outputting cold air, and an air supply duct 2 and an air return duct 3;

[0021] The cold air output by the refrigeration unit 1 is output through the air supply duct 2 and refluxed through the return air duct 3 to become the air intake source of the refrigeration unit 1 to form an air flow circulation; the air supply duct 2 has two air outlets, and the two air outlets are respectively located on two opposite surfaces of the air supply duct 2, so that the two air flows blown out of the two air outlets are in opposite directions, thereby avoiding mutual influence between the two air flows.

[0022] The return air duct 3 has two return air ports arranged circumferentially on the periphery of the air supply duct 2, and the two return air ports are arranged one by one corresponding to the two air outlets, so that the cold air output by the refrigeration unit 1 is blown out from each air outlet and then uniformly returned to the return air duct 3 from the corresponding return air ports as the air source of the refrigeration unit 1, so that an air flow circulation area is formed between each air outlet and the corresponding return air port, thereby shortening the air flow circulation path, increasing the air flow circulation speed, accelerating the refrigeration efficiency, ensuring the uniformity of the temperature in the space, and then solving the problem of slow cooling speed and uneven temperature distribution caused by large space and long circulation path.

[0023] Specifically, the air supply duct 2 is a plate-shaped structural member having an air flow channel 21 inside, and the air outlets are respectively located on different side walls of the plate-shaped structural member and communicate with the air flow channel 21 inside the plate-shaped structural member. This structural design can not only form a certain partition effect on the space, but also reduce the mutual influence between the air flows blown out by the air outlets.

[0024] Specifically: there are two air outlets, and the two air outlets are respectively located on two opposite surfaces of the plate-like structural member.

[0025] In this embodiment, honeycomb-shaped orifice plates 6 are respectively installed at the air outlets. This structural design forms an extrusion when the cold air flow is blown out, thereby making the wind pressure high, the air outlet uniform, and the noise low.

[0026] In addition, in the circumferential direction, a barrier may be provided between each two adjacent air outlets to make the space where each air outlet and the corresponding return air outlet are located independent of the space where other air outlets and return air outlets are located, thereby preventing the airflows blown out of each air outlet from interfering with each other.

[0027] In addition, a guide plate 5 is provided in the air supply duct 2 and between the air outlets to separate the air outlets from each other.

[0028] Specifically: there are two air outlets, and the two surfaces of the guide plate 5 opposite to the two air outlets include a lower plate surface located below the air outlet and centered at the center of the two air outlets, an upper plate surface located on one side of the lower plate surface close to the air outlet and opposite to the air outlet, and a guide slope connecting the upper plate surface and the lower plate surface. This structural design allows the cold air flow to be blown out smoothly from the air outlets on both sides, while forming extrusion when the wind is blown out, thereby making the wind pressure high, the wind outlet uniform, and the noise low.

[0029] In this embodiment, the refrigeration unit 1 includes a compressor, a condensing fan, a condenser unit, a fin evaporator, an evaporating fan, and the like.

[0030] Embodiment 2: This embodiment is different from Embodiment 1 in that the air supply duct 2 has more than two air outlets (e.g., four air outlets), and each air outlet is circumferentially arranged on the side wall of the air supply duct 2 (e.g., the four air outlets are respectively located on the four sides of the plate-like structural member). The return air duct 3 has more than two return air outlets.

[0031] Reference Figure 2 The present invention proposes a dual-circulation air cooling system installation structure, comprising: a freezing space 4 that needs to input cold air and the dual-circulation air cooling system as described above, wherein the air supply duct 2 is arranged in the freezing space 4, and its air outlets are respectively oriented to different directions of the freezing space 4; the return air outlets of the return air duct 3 are connected to the freezing space 4, and each return air outlet is arranged along the peripheral wall of the freezing space 4 and corresponds to each air outlet one by one. So that each air outlet cooperates with the corresponding return air outlet to form multiple cold air circulation areas inside the freezing space, thereby shortening the air flow circulation path, increasing the air flow circulation speed, accelerating the refrigeration efficiency, and ensuring the uniformity of the temperature of each area in the freezing space 4.

[0032] In this embodiment, the freezing space 4 has a switch door, the air outlet is located at the switch door and the blown air flow can form an air curtain inside the switch door. The air curtain is used to prevent the outside hot air from entering the freezing space 4 through the switch door during the freezing space 4 is opened.

[0033] In this embodiment, the air supply duct 2 is centrally arranged in the freezing space 4 and the freezing space 4 is divided into at least two compartments, and each air outlet of the air supply duct 2 faces each compartment. For example, the air supply duct 2 is centrally arranged in the freezing space 4 and the freezing space 4 is divided into compartments located on both sides thereof, and the air supply duct 2 has two air outlets, which face two compartments respectively. Or the air supply duct 2 is centrally arranged in the freezing space 4 and the freezing space 4 is divided into three circumferentially arranged compartments, and the air supply duct 2 has three air outlets, which face three compartments respectively. This structural design can avoid mutual influence between the airflows blown out of each air outlet.

[0034] From the above, it can be seen that the dual-circulation air cooling system and its installation structure proposed by the present invention, by making its supply air duct 2 have at least two circumferentially arranged air outlets, and making its return air duct 3 have at least two circumferentially arranged return air outlets on the outer periphery of the air outlets, and making each return air outlet correspond to each air outlet one by one, so that the cold air output by the refrigeration unit 1 is blown out from each air outlet and then uniformly returned to the return air duct 3 from its corresponding return air outlet as the air source of the refrigeration unit 1, so that an air flow circulation area is formed between each air outlet and the corresponding return air outlet, thereby shortening the air flow circulation path, improving the air flow circulation speed, accelerating the refrigeration efficiency, ensuring the uniformity of temperature in the space, and then solving the problems of slow cooling speed and uneven temperature distribution caused by large space and long circulation path.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-circulation air cooling system, characterized in that: include: A refrigeration unit (1) for outputting cold air, and an air supply duct (2) and an air return duct (3); The cold air output by the refrigeration unit (1) is output through the air supply duct (2) and flows back through the return air duct (3) to become the air intake source of the refrigeration unit (1) to form an air flow cycle; the air supply duct (2) has at least two air outlets arranged circumferentially, and the return air duct (3) has at least two return air outlets arranged circumferentially on the periphery of the air supply duct (2), and each return air outlet is arranged in a one-to-one correspondence with each air outlet, so that the cold air output by the refrigeration unit (1) is blown out from each air outlet and then flows back into the return air duct (3) from its corresponding return air outlet as the air source of the refrigeration unit (1); The air supply duct (2) is a plate-shaped structural member having an air flow channel (21) inside, and the air outlets are respectively located on different side walls of the plate-shaped structural member and are connected to the air flow channel (21) inside the plate-shaped structural member; A honeycomb perforated plate (6) is installed at the air outlet; In the circumferential direction, a barrier is provided between each two adjacent air outlets to prevent the two adjacent air flows from interfering with each other, so that the space where each air outlet and the corresponding return air outlet are located is independent of the space where other air outlets and return air outlets are located, thereby preventing the air flows blown out of the air outlets from interfering with each other; a guide plate (5) is provided in the air supply duct (2) and between the air outlets to separate the air outlets from each other; There are two air outlets, and the two air outlets are respectively located on two opposite surfaces of the plate-like structural member; the two surfaces of the guide plate (5) opposite to the two air outlets each include a lower plate surface located below the air outlet and centrally arranged at the center of the two air outlets, an upper plate surface located on a side of the lower plate surface close to the air outlet and opposite to the air outlet, and a guide slope connecting the upper plate surface and the lower plate surface.

2. A dual-circulation air cooling system installation structure, characterized in that: include: A freezing space (4) to which cold air needs to be input and a dual-circulation air cooling system as claimed in claim 1, wherein the air supply duct (2) is arranged in the freezing space (4), and its air outlets are respectively oriented towards different directions of the freezing space (4); the return air outlet of the return air duct (3) is connected to the freezing space (4), and each return air outlet is arranged along the peripheral wall of the freezing space (4) and corresponds to each air outlet one by one.

3. The dual-circulation air cooling system installation structure according to claim 2, characterized in that: The freezing space (4) has a switch door, and the air outlet is located at the position of the switch door so that the blown air flow can form an air curtain on the inner side of the switch door.

4. The dual-circulation air cooling system installation structure according to any one of claims 2-3, characterized in that: The air supply duct (2) is centrally arranged in the freezing space (4) and divides the freezing space (4) into at least two compartments, and each air outlet of the air supply duct (2) faces each compartment respectively.

5. The dual-circulation air cooling system installation structure according to claim 4, characterized in that: The air supply duct (2) is centrally arranged in the freezing space (4) and divides the freezing space (4) into compartments located on both sides thereof, and the air supply duct (2) has two air outlets, which are respectively oriented toward the two compartments; or the air supply duct (2) is centrally arranged in the freezing space (4) and divides the freezing space (4) into three circumferentially arranged compartments, and the air supply duct (2) has three air outlets, which are respectively oriented toward the three compartments.

Images