Dual-system centralized condenser outdoor unit

Abstract

The utility model relates to a double-system centralized condenser outdoor unit which comprises two heat exchangers, a fan, a mounting frame and a flow path pipeline assembly. The two heat exchangers are installed on the two sides of the installation frame respectively, the draught fan is installed on the upper end face of the installation frame, and the flow path pipeline assemblies are installed on the two heat exchangers respectively. The flow path pipeline assembly comprises two first flow path groups and two second flow path groups; the two first flow path groups are respectively arranged on the two heat exchangers, the upper ends of the two first flow path groups converge and are connected with a first air inlet, and the lower ends of the two first flow path groups converge and are connected with a first liquid outlet; the two second flow path sets are arranged on the two heat exchangers correspondingly, and the upper ends of the two second flow path sets are converged and connected with a second air inlet. The utility model aims to provide the dual-system centralized condenser outdoor unit for overcoming the existing defects, and the stability of system operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double system centralized condenser outdoor unit. BACKGROUND

[0002] At present, centralized condensers are widely used in the industry, and have the advantages of small land occupation and good heat exchange effect.

[0003] In order to meet the demand of different cooling capacity, when a single system cannot meet the demand, a double direct expansion system is often used. In order to ensure the reliable operation of the two systems, the outdoor condenser is often set to two and controlled separately. However, due to site restrictions, the two outdoor units need to be concentrated together. At this time, there are problems of uneven heat exchange and invalid heat exchange of the two system condensers, causing energy waste and low operation reliability.

[0004] Therefore, a double system centralized condenser outdoor unit is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects of the prior art and providing a double system centralized condenser outdoor unit to improve the stability of system operation.

[0006] The technical scheme for achieving the above-mentioned purpose is: a double system centralized condenser outdoor unit, comprising two heat exchangers, a fan, a mounting rack and a flow path pipe assembly.

[0007] The two heat exchangers are respectively installed on both sides of the mounting rack, the fan is installed on the upper end face of the mounting rack, and the flow path pipe assembly is respectively installed on the two heat exchangers.

[0008] Preferably, the flow path pipe assembly comprises two groups of first flow paths and two groups of second flow paths; the two groups of first flow paths are respectively arranged on the two heat exchangers, the upper ends of the two groups of first flow paths are connected to a first air inlet, and the lower ends of the two groups of first flow paths are connected to a first liquid outlet.

[0009] The two groups of second flow paths are respectively arranged on the two heat exchangers, the upper ends of the two groups of second flow paths are connected to a second air inlet, and the lower ends of the two groups of second flow paths are connected to a second liquid outlet.

[0010] Preferably, the lower ends of the two heat exchangers are close to each other and form a V shape.

[0011] Preferably, the number of fans can be two.

[0012] Preferably, the number of fans can be multiple.

[0013] The utility model discloses a beneficial effect is: this double system centralized condenser outdoor unit, two refrigeration system outdoor unit concentrates to the integration, through the optimization arrangement of double system centralized condenser flow path, share air duct, no matter open a system or two systems, give full play to the function of fan, solve the problem of double system condenser heat exchange again, solve the problem of double system pressure imbalance. Thus promote the whole machine energy efficiency and improve system operation reliability, reach the purpose of energy saving and consumption reduction, reliable operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the schematic diagram of double system centralized condenser outdoor unit of the utility model,

[0015] Fig. 2 It is the schematic diagram of flow path pipeline subassembly of the utility model.

[0016] In the drawing: 1, heat exchanger, 2, fan, 3, mounting bracket, 4, first flow path group, 5, second flow path group, 6, first air inlet, 7, first liquid outlet, 8, second air inlet, 9, second liquid outlet. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it needs to be explained that the orientation or position relation of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore can not be understood as the restriction of the utility model on the orientation or position of the indicated device or element. In addition, the terms "first", "second", "third" are only for the description purpose, and can not be understood as the indication or implication of the opposite importance.

[0018] The utility model will be described further below in combination with the drawings.

[0019] As Figs. 1-2 Shown, a kind of double system centralized condenser outdoor unit, including two heat exchangers 1, fan 2, mounting bracket 3 and flow path pipeline subassembly;Two heat exchangers 1 are respectively installed in the two sides of mounting bracket 3, and the lower end of two heat exchangers 1 is close, and presents V type. Fan 2 is installed on the upper end surface of mounting bracket 3, and the number of fan 2 can be two. Flow path pipeline subassembly is respectively installed on two heat exchangers 1. The number of fan 2 can be multiple. It is specifically configured according to requirement.

[0020] Specifically, the flow path pipe assembly includes two groups of first flow path groups 4 and two groups of second flow path groups 5; the two groups of first flow path groups 4 are respectively arranged on the two heat exchangers 1, the upper ends of the two groups of first flow path groups 4 are connected to the first gas inlet 6, and the lower ends of the two groups of first flow path groups 4 are connected to the first liquid outlet 7; the two groups of second flow path groups 5 are respectively arranged on the two heat exchangers 1, the upper ends of the two groups of second flow path groups 5 are connected to the second gas inlet 8, and the lower ends of the two groups of second flow path groups 5 are connected to the second liquid outlet 9. The first gas inlet 6 is connected to one system, and the second gas inlet 8 is connected to another system.

[0021] Specifically, the number of fans 2 is configured according to system requirements, which can be one or more, and in this example, there are two fans. The heat exchangers 1 are arranged in a V shape, and the fans 2 are located at the top of the V-shaped heat exchangers. The wind enters from the outside of the heat exchangers 1 and blows out from the top of the fans 2. The heat exchangers can be single-row or multi-row pipes, and the number of pipes in each row is not fixed. The two system condensers share the air duct.

[0022] As shown in Fig. 2 , the two groups of first flow path groups 4 and the two groups of second flow path groups 5 are respectively connected to the two heat exchangers 1, and the flow paths of the two systems are staggered to ensure uniform heat exchange. In this example, there are two systems, and if there are more systems, the flow paths of each system can still be staggered according to this idea to ensure uniform heat exchange of each system.

[0023] As shown in Fig. 2 , when a single system is running, the two groups of first flow path groups 4 are running, and the two groups of second flow path groups 5 are idle. All fans 2 of the centralized condenser are running, and the high-temperature and high-pressure exhaust gas of the compressor enters the first gas inlet 6, then enters the left and right first flow path groups 4 for condensation, respectively. The left and right first flow path groups 4 each have 14 flow paths, and each flow path contains 6 pipes. The condensed liquid is collected and discharged from the first liquid outlet 7. Although a single system is running, the left and right sides can simultaneously exchange heat with the heat exchangers 1 in a countercurrent manner, and then the air is discharged through the fans 2. At this time, the fans have a large redundancy and can operate at a low speed, reducing the power consumption of the fans. Similarly, if a single second system is running, the situation is the same as that of a single first system, and will not be described again.

[0024] Specifically, when two systems are running simultaneously, all fans 2 are running, and the exhaust gas of the two system compressors enters the first gas inlet 6 and the second gas inlet 8, respectively. After heat exchange and condensation in the staggered flow path heat exchanger, the condensed liquid is discharged from the first liquid outlet 7 and the second liquid outlet 9, respectively. The two flow paths are staggered, and the cooling capacity of the two system condensers is basically the same, which can solve the problem of pressure imbalance when two systems are running simultaneously and improve the stability of system operation.

[0025] The double-system centralized condenser outdoor unit integrates two refrigeration system outdoor units into one, optimizes the flow path of the double-system centralized condenser, shares the air duct, fully plays the role of the fan whether one system or two systems are started, solves the problems of poor heat exchange of the double-system condenser and pressure imbalance of the double-system, improves the overall energy efficiency and system operation reliability, and achieves the purposes of energy saving, consumption reduction and reliable operation.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dual-system centralized condenser outdoor unit, characterized by, It comprises two heat exchangers (1), a fan (2), a mounting frame (3) and a flow path pipe assembly; Two said heat exchangers (1) are respectively installed on both sides of the mounting frame (3), the fan (2) is installed on the upper end surface of the mounting frame (3), and the flow path pipe assembly is respectively installed on two said heat exchangers (1).

2. The dual system centralized condenser outdoor unit according to claim 1, characterized by, The flow path pipe assembly comprises two groups of first flow path groups (4) and two groups of second flow path groups (5); two groups of said first flow path groups (4) are respectively arranged on two said heat exchangers (1), the upper ends of two groups of said first flow path groups (4) are connected to a first air inlet (6), and the lower ends of two groups of said first flow path groups (4) are connected to a first liquid outlet (7); Two groups of said second flow path groups (5) are respectively arranged on two said heat exchangers (1), the upper ends of two groups of said second flow path groups (5) are connected to a second air inlet (8), and the lower ends of two groups of said second flow path groups (5) are connected to a second liquid outlet (9).

3. The dual system centralized condenser outdoor unit according to claim 1, characterized by, The lower ends of two said heat exchangers (1) are close to each other, forming a V shape.

4. The dual system centralized condenser outdoor unit according to claim 1, characterized by, The number of said fans (2) can be two.

5. The dual system centralized condenser outdoor unit according to claim 1, wherein The number of said fans (2) can be multiple.

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