A dual-path heat exchange unit

Abstract

This utility model discloses a dual-path heat exchange unit, including a housing. The back of the housing has mounting holes on the upper and lower sides. A centrifugal fan is installed inside the housing's inner cavity. Vertically aligned and parallel heat exchangers a and b are fixedly installed inside the housing's inner cavity, both located in front of the centrifugal fan's outlet. Two sets of connecting pipes are mounted on the top of the housing via a bracket, corresponding to heat exchangers a and b. This utility model has two heat exchangers, thus allowing a single machine to perform both cooling and heating functions, improving its applicability.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically a dual-path heat exchange unit. Background Technology

[0002] A heat exchange unit (also known as a heat exchanger) is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchangers are common equipment in chemical, petroleum, power, and HVAC fields. A heat exchanger is a device that performs heat exchange; a refrigerant or heat transfer medium circulates in the pipes of the heat exchanger, exchanging heat with the outside air to meet cooling or heating needs. In the HVAC field, existing heat exchange units are generally used in conjunction with chillers or hot water boilers. However, existing heat exchange units can only be used with a single type of equipment, which limits their application. Utility Model Content

[0003] The purpose of this invention is to provide a dual-path heat exchange unit to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-path heat exchange unit, including a housing, with mounting holes on the upper and lower sides of the back of the housing, a centrifugal fan installed in the inner cavity of the housing, and vertical and parallel heat exchangers a and b fixedly installed in the inner cavity of the housing, both heat exchangers a and b being located in front of the air outlet of the centrifugal fan, and two sets of connecting pipes installed on the top of the housing via a bracket, the two sets of connecting pipes corresponding to heat exchangers a and b.

[0005] Preferably, the casing has a rectangular air inlet on the side corresponding to the centrifugal fan, and a rectangular air outlet on the side opposite the air outlets of heat exchanger a and heat exchanger b.

[0006] Preferably, a conical air guide is fixedly installed on the inner side of the air outlet.

[0007] Preferably, the edges of the air inlet and air outlet are provided with multiple evenly distributed mounting holes.

[0008] Compared with the prior art, the beneficial effects of this utility model are: this utility model is equipped with two heat exchangers, so the same machine can meet the functions of cooling and heating, improving applicability. The integration of cooling and heating heat exchangers in the casing is conducive to the miniaturization design of the product and convenient installation. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0010] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0011] Figure 3 This is a schematic diagram of the three-dimensional structure after the back panel of the casing has been removed.

[0012] In the diagram: 1. Casing; 2. Centrifugal fan; 3. Support frame; 4. Connecting pipe; 5. Heat exchanger a; 6. Heat exchanger b; 7. Draft shield; 8. Air inlet; 9. Air outlet. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a dual-path heat exchange unit, including a housing 1. The housing 1 has mounting holes on its upper and lower back sides. A centrifugal fan 2 is installed inside the housing 1. Vertical and parallel heat exchangers a5 and b6 are fixedly installed inside the housing 1, both located in front of the air outlet of the centrifugal fan 2. Two sets of connecting pipes 4 are installed on the top of the housing 1 via a bracket 3, corresponding to heat exchangers a5 and b6. Heat exchangers a5 and b6 are both finned tube heat exchangers, connected to a cold water circulation system and a hot water circulation system, respectively. Heat exchangers a5 and b6 have the same width and height. A flip-adjustable guide plate (similar in structure and principle to an air conditioner's air outlet guide plate) is installed at the air outlet of the centrifugal fan 2 to direct airflow towards the heat exchangers, improving the efficiency of heat exchange.

[0015] A rectangular air inlet 8 is provided on the side of the casing 1 corresponding to the position of the centrifugal fan 2. A rectangular air outlet 9 is provided on the side of the casing 1 opposite to the air outlets of heat exchanger a5 and heat exchanger b6. Multiple evenly distributed mounting holes are provided on the edges of the air inlet 8 and the air outlet 9. A metal mesh can be installed at the air inlet 8 to reduce the intake of dust and impurities. A conical guide shroud 7 is fixedly installed on the inner side of the air outlet 9, which guides the airflow.

[0016] 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 two-way heat exchange unit comprising a casing (1), the back of the casing (1) being provided with a pair of ear holes, characterized in that: The inner cavity of the casing (1) is equipped with a centrifugal fan (2). The inner cavity of the casing (1) is fixedly equipped with vertical and parallel heat exchangers a (5) and b (6). The heat exchangers a (5) and b (6) are located in front of the air outlet of the centrifugal fan (2). The top of the casing (1) is equipped with two sets of pipes (4) through a bracket (3). The two sets of pipes (4) correspond to the heat exchangers a (5) and b (6).

2. A two-pass heat exchange unit according to claim 1, characterised in that: The casing (1) has a rectangular air inlet (8) on the side corresponding to the centrifugal fan (2), and the casing (1) has a rectangular air outlet (9) on the side opposite to the air outlets of heat exchanger a (5) and heat exchanger b (6).

3. A two-pass heat exchange unit according to claim 1, wherein: A conical air guide shroud (7) is fixedly installed on the inner side of the air outlet (9).

4. A two-pass heat exchange unit according to claim 1, wherein: The edges of the air inlet (8) and air outlet (9) are provided with multiple evenly distributed mounting holes.

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