Hot fluorine defrosting air cooler

Abstract

The utility model discloses a hot fluorine defrosting air cooler which comprises an air cooler body with a plurality of turn-back heat exchange runners, one end of the air cooler body is provided with a liquid inlet pipe and an air return header pipe, and the other opposite end of the air cooler body is provided with a collecting pipe and a flow dividing pipe which are communicated with each other. The bottom of the air cooler body is provided with a plurality of air return branch pipes communicating with the flow dividing pipe and the air return header pipe. The inlet end of the turn-back heat exchange runner is communicated with the liquid inlet pipe, and the outlet end of the turn-back heat exchange runner is communicated with the collecting pipe. The air return branch pipe is located at the bottom of the air cooler body, so that the temperature of the bottom of the air cooler body is the highest during hot fluorine defrosting, defrosting of the heat exchange pipe on the lower layer is facilitated, and the problem that the defrosting efficiency of the heat exchange pipe on the lower layer of an existing air cooler is low is effectively solved. In addition, due to the floating characteristic of the high-temperature gas, heat emitted by the gas return branch pipes flows upwards, the heat exchange pipes located on the upper layer can be defrosted, and the utilization efficiency of heat energy is improved.

Description

Technical Field

[0001] This utility model relates to the field of air cooler technology, specifically to a hot-fluorine defrosting air cooler. Background Technology

[0002] Existing evaporative air coolers use a matrix arrangement of heat exchange tubes, with each tube in the same row connected sequentially, creating multiple zigzag heat exchange channels. During cooling, the refrigerant enters from the inlet of the heat exchange channel, flows back and forth along the channel, and exits from the outlet to the return pipe. During defrosting, the refrigerant enters the heat exchange channel in the opposite direction from the outlet and exits from the inlet, defrosting the heat exchange tubes. However, during defrosting, water droplets generated on the upper heat exchange tubes drip onto the lower tubes, affecting their heat exchange and preventing efficient defrosting of the bottom layer or more heat exchange tubes. Utility Model Content

[0003] To address the aforementioned issues, this application provides a hot-fluorine defrosting air cooler that can improve the defrosting efficiency of the lower heat exchange tubes of the air cooler.

[0004] The objective of this utility model is achieved through the following technical solution: a hot-fluorine defrosting air cooler, comprising an air cooler body having several zigzag heat exchange channels, one end of the air cooler body being provided with a liquid inlet pipe and a return gas main pipe, and the opposite end being provided with a collection pipe and a branch pipe that are interconnected, and the bottom of the air cooler body being provided with several return gas branch pipes that connect the branch pipe and the return gas main pipe; the inlet end of the zigzag heat exchange channel is connected to the liquid inlet pipe, and its outlet end is connected to the collection pipe.

[0005] As a preferred embodiment, the air cooler body has several heat exchange tubes distributed in a matrix or equilateral triangle, and the heat exchange tubes are interconnected to form the folded heat exchange channel; the bottom row or multiple rows of heat exchange tubes form the return air branch pipe.

[0006] As a preferred embodiment, when the heat exchange tubes are arranged in a matrix, except for the return gas branch pipe, the inlets of the remaining heat exchange tubes in the first column respectively form the inlet ends of the folded heat exchange channels, and the outlets of the remaining heat exchange tubes in the last column respectively form the outlet ends of the folded heat exchange channels.

[0007] Compared with existing technologies, this application has the following beneficial effects: In this invention, the bottommost row or multiple rows of heat exchange tubes form return gas branch pipes. During hot refrigerant defrosting, the high-temperature refrigerant flows from the main return gas pipe to each return gas branch pipe, and then flows out of each branch pipe and through the distribution pipe and collection pipe to each zigzag heat exchange channel. Defrosting of the heat exchange tubes is achieved through heat exchange. Since the return gas branch pipes are located at the bottom of the air cooler body, the temperature at the bottom of the air cooler body is the highest, which is more conducive to defrosting of the lower heat exchange tubes, effectively solving the problem of low defrosting efficiency of the lower heat exchange tubes in existing air coolers. Furthermore, due to the characteristic of high-temperature gas rising, the heat emitted from the return gas branch pipes flows upwards, also defrosting the upper heat exchange tubes, improving the efficiency of heat energy utilization.

[0008] Some of the additional features of this application will be described in the following description. These additional features will become apparent to those skilled in the art upon examination of the following description and the accompanying drawings, or upon understanding the production or operation of the embodiments. The features disclosed in this application can be implemented and achieved through the practice or use of various methods, means, and combinations thereof with respect to the specific embodiments described below. Attached Figure Description

[0009] The accompanying drawings, which are provided to further illustrate this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0010] Figure 1 This is a structural diagram of the present invention.

[0011] Figure 2 This is the front view of the present invention.

[0012] Figure 3 This is the left view of the present invention.

[0013] Figure 4 This is the right view of the present invention.

[0014] Figure 5 This is a schematic diagram of one connection method for the heat exchanger tube of this utility model.

[0015] Figure 6 This is a schematic diagram of another connection method for the heat exchange tube of this utility model.

[0016] The reference numerals in the above figures are: 1-inlet pipe, 2-main return gas pipe, 3-collection pipe, 4-diversion pipe, 5-return gas branch pipe, 6-heat exchange pipe. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments.

[0018] Example

[0019] like Figure 1-4 As shown, this embodiment discloses a hot-frosting refrigerant air cooler, which includes a cooler body with several zigzag heat exchange channels. A liquid inlet pipe 1 and a main return gas pipe 2 are provided at the first end of the cooler body, and a collection pipe 3 and a branch pipe 4, which are interconnected, are provided at the second end opposite to the first end. Additionally, several return gas branch pipes 5, connecting the branch pipes 4 and the main return gas pipe 2, are provided at the bottom of the cooler body. The inlet end of each zigzag heat exchange channel is connected to the liquid inlet pipe 1, and its outlet end is connected to the collection pipe 3. The refrigerant in the zigzag heat exchange channels flows in a zigzag pattern, meaning the refrigerant can flow from the first end to the second end of the cooler body along the zigzag heat exchange channels, and then return from the second end to the first end, thus flowing in a zigzag pattern.

[0020] Specifically, the air cooler body has several heat exchange tubes 6 arranged in a matrix or equilateral triangle, extending from the first end to the second end of the air cooler body. Furthermore, the multiple heat exchange tubes 6 are interconnected to form the aforementioned zigzag heat exchange channel. The bottommost row or multiple rows of heat exchange tubes 6 form the aforementioned return air branch pipe 5.

[0021] In a specific setup, the heat exchange tubes 6 in the same row can be interconnected to form a zigzag heat exchange channel, such as... Figure 5 As shown. Alternatively, heat exchange tubes 6 in different rows or multiple heat exchange tubes 6 in the same row can be connected first and then connected to heat exchange tubes 6 in another row or multiple rows to form a zigzag heat exchange channel, such as... Figure 6 As shown. This application does not limit the connection form between the heat exchange tubes 6, but only ensures that the bottom row or multiple rows of heat exchange tubes 6 form the return gas branch pipe 5.

[0022] In specific implementation, the bottom row, two rows, three rows or more of heat exchange tubes 6 can be used as return gas branch pipes 5. In this embodiment, the bottom two rows of heat exchange tubes 6 are used as return gas branch pipes 5. That is, in this embodiment, the bottom two rows of heat exchange tubes 6 are connected to the return gas main pipe 2 and the branch pipe 4.

[0023] As an optional implementation, when the heat exchange tubes 6 are arranged in a matrix, except for the return gas branch pipe 5, the inlets of the remaining heat exchange tubes 6 in the first column respectively form the inlet ends of the zigzag heat exchange channels, and the outlets of the remaining heat exchange tubes 6 in the last column respectively form the outlet ends of the zigzag heat exchange channels. Figure 5For example, except for the bottom return gas branch pipe 5, the inlet of the first column of heat exchange pipes 6 on the left serves as the inlet end of each zigzag heat exchange channel, and the outlet of the rightmost column of heat exchange pipes 6 serves as the outlet end of each zigzag heat exchange channel. In this way, the inlet ends of all heat exchange channels are located on the same side, and the outlet ends of all heat exchange channels are also located on the same side, which facilitates the connection of pipelines.

[0024] During refrigeration, the refrigerant is diverted from the liquid inlet pipe 1 to each of the folding heat exchange channels, then collected from the folding heat exchange channels to the collection pipe 3 and the diversion pipe 4, and then diverted from the diversion pipe 4 to each of the return gas branch pipes 5, and finally collected from each of the return gas branch pipes 5 to the return gas main pipe 2.

[0025] During hot refrigerant defrosting, the high-temperature refrigerant is diverted from the return gas main pipe 2 to each return gas branch pipe 5, and then collected from each return gas branch pipe 5 to the diversion pipe 4 and the collection pipe 3. From the collection pipe 3, it is diverted to each folded heat exchange channel, and finally collected from each folded heat exchange channel to the liquid inlet pipe 1 to defrost the heat exchange tubes.

[0026] In this embodiment, the return gas branch pipe is located at the bottom of the air cooler body. Therefore, the bottom of the air cooler body has the highest temperature during hot refrigerant defrosting, which is more conducive to the defrosting of the lower heat exchange tubes and effectively solves the problem of low defrosting efficiency of the lower heat exchange tubes in existing air coolers. In addition, due to the characteristic of high-temperature gas rising, the heat emitted by the return gas branch pipe 5 flows upward and also defrosts the upper heat exchange tube 6, improving the efficiency of heat energy utilization.

[0027] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A hot-frosting defrosting air cooler, comprising an air cooler body having a plurality of zigzag heat exchange channels, characterized in that, One end of the air cooler body is provided with an inlet pipe (1) and a return gas main pipe (2), and the other end is provided with a collection pipe (3) and a branch pipe (4) that are connected to each other. The bottom of the air cooler body is provided with several return gas branch pipes (5) that connect the branch pipe (4) and the return gas main pipe (2). The inlet end of the folding heat exchange channel is connected to the inlet pipe (1), and its outlet end is connected to the collection pipe (3).

2. The hot-fluorine defrosting air cooler according to claim 1, characterized in that, The air cooler body has several heat exchange tubes (6) arranged in a matrix or equilateral triangle from top to bottom. The heat exchange tubes (6) are interconnected to form the folded heat exchange channel. The bottom row or multiple rows of heat exchange tubes (6) form the return air branch pipe (5).

3. The hot-fluorine defrosting air cooler according to claim 2, characterized in that, When the heat exchange tubes (6) are arranged in a matrix, except for the return gas branch pipe (5), the inlets of the remaining heat exchange tubes (6) in the first column form the inlet end of the folded heat exchange channel, and the outlets of the remaining heat exchange tubes (6) in the last column form the outlet end of the folded heat exchange channel.

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