Integrated air-water cooling unit for external air circulation cooling and heat dissipation of special cabinet for frequency conversion

Abstract

The utility model belongs to the technical field of frequency converter cooling and heat radiation, and provides an integrated air-water cooling unit for external air circulation cooling and heat radiation of a frequency conversion special cabinet, which comprises an air-water cooling unit arranged in parallel with a frequency converter cabinet, and the air-water cooling unit comprises a unit shell, an air inlet arranged at the upper end of the unit shell and a heat radiator arranged in the unit shell. The water outlet connector is formed in the upper end of one side of the unit shell, the water inlet connector is formed in the lower end of one side of the unit shell, and the air outlets are formed in the front end face and the rear end face of the unit shell. The other side of the unit shell is opposite to the frequency converter cabinet, the top of the frequency converter cabinet and the top of the unit shell are provided with an air collecting cover covering the frequency converter cabinet and the unit shell, and the water outlet connector and the water inlet connector are connected with the radiator. Butt-joint interfaces such as an installation base, an air inlet and an air outlet of the device can be completed before leaving a factory, the workload of field engineering construction is reduced, installation is easy and convenient, cost is low, and multiple air channel butt-joint frequency converters and cooling devices do not need to be manufactured.

Description

Technical Field

[0001] The utility model belongs to the technical field of frequency converter cooling and heat dissipation, and specifically relates to an integrated air-water cooling unit for cooling and heat dissipation of an external wind circulation cabinet dedicated for frequency conversion. Background Art

[0002] The air-water cooling system is one of the new cooling methods for high-voltage electrical equipment. Compared with the conventional closed air-conditioning cooling method and forced air cooling method, it has significant advantages, such as energy saving and simple maintenance. At the same time, it solves the problem of dust and humidity affecting the inverter. More and more users use air-water cooling to dissipate heat for high-power electrical equipment such as inverters.

[0003] The principle of the air-water cooling system is that the hot air coming out of the inverter is connected to the air-water cooling equipment with a fixed radiator through the air duct. Cold water with a temperature below 33°C (working pressure 0.2~0.5Mpa) passes through the equipment radiator. After the hot air passes through the heat sink, the heat is transferred to the cold water and becomes cold air, which is blown out from the heat sink and sent back to the inverter room for circulating cooling. The heat is taken away by the circulating cooling water to ensure that the ambient temperature in the inverter control room is not higher than 40°C.

[0004] In the prior art, the installation method of air-water cooling equipment requires that the entire equipment be installed outdoors (i.e., outside the frequency converter room). At the same time, the outdoor equipment installation foundation must be made, more air ducts must be made to connect with the frequency converter, and then the cooling water supply and return pipes must be laid. This work mainly has the disadvantages of large workload and long construction period. Utility Model Content

[0005] The utility model aims to provide an integrated air-water cooling unit for cooling and heat dissipation by wind circulation outside a frequency conversion special cabinet, so as to solve the technical problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An integrated air-water cooling unit for external wind circulation cooling and heat dissipation in a special frequency conversion cabinet, including an air-water cooling unit arranged in parallel with a frequency converter cabinet, the air-water cooling unit including a unit casing, an air inlet arranged at the upper end of the unit casing, a radiator arranged in the unit casing, a water outlet interface arranged at the upper end of one side of the unit casing, a water inlet interface at the lower end, and air outlets arranged at the front end and rear end of the unit casing; the other side of the unit casing is opposite to the frequency converter cabinet, and an air collecting hood covering the frequency converter cabinet and the unit casing is arranged on the top of the two, the water outlet interface and the water inlet interface are connected to the radiator, the water inlet interface is used to connect to an external cooling water supply, and the water outlet interface is used to connect to a drain pipe.

[0008] Furthermore, an air inlet docking flange for connecting to the air collecting hood is provided at the air inlet.

[0009] Furthermore, the radiator adopts a V-shaped structure, with its larger end facing the air inlet.

[0010] Furthermore, the radiator includes a first heat dissipation component and a second heat dissipation component, and both are connected to the water outlet interface and the water inlet interface respectively.

[0011] Furthermore, a protective net is provided at the air outlet.

[0012] Furthermore, an inspection and disassembly door is provided on the other side of the unit casing.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adopts an integrated air-water cooling unit and a frequency converter in parallel. The top of the frequency converter cabinet and the top of the air-water cooling unit are covered by an air collecting hood, which guides the hot air generated by the operation of the frequency converter cabinet into the air-water cooling unit. After the hot air passes through the evaporator of the cooling unit, it becomes cold air and is blown out from the heat sink and sent back to the frequency converter room. The heat is taken away by the cooling water circulation. The installation foundation, air inlet and outlet and other docking interfaces of the equipment can be completed before leaving the factory, which reduces the workload of on-site engineering construction. It is not only simple and convenient to install with low cost, but also does not need to make a large number of air ducts to connect the frequency converter and the cooling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the application state of the utility model.

[0016] Figure 2 for Figure 1 AA direction schematic diagram.

[0017] Figure 3 The three-dimensional structure diagram of the hollow water cooling unit of the utility model is shown in FIG. Figure 1 .

[0018] Figure 4 The three-dimensional structure diagram of the hollow water cooling unit of the utility model is shown in FIG. Figure 2 .

[0019] Figure 5 It is a schematic diagram of the internal structure of the hollow water cooling unit of the utility model.

[0020] Among them, the names corresponding to the figure marks are as follows: 1-inverter cabinet, 2-air-water cooling unit, 3-unit casing, 4-air inlet, 5-radiator, 6-water outlet interface, 7-water inlet interface, 8-air outlet, 9-wind collecting hood, 10-air inlet docking flange, 11-protective net, 12-maintenance and disassembly door; 51-first heat dissipation component, 52-second heat dissipation component. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to have a clearer understanding and knowledge of the present invention, the present invention is further described in detail in conjunction with the following embodiments. It should be noted that the specific embodiments described below are only used to explain the present invention and facilitate understanding. The technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present invention.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the disclosure of this application shall have the usual meanings understood by persons with ordinary skills in the field to which the disclosure belongs. The words "include" or "comprise" and the like used in this application mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The positional relationship words "upper", "lower", "left", "right", "front", "back", etc. are determined according to the layout direction of the drawings in the specification, and are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] like Figures 1 to 5 As shown, the present embodiment provides an integrated air-water cooling unit for external wind circulation cooling and heat dissipation of a special frequency conversion cabinet, which includes an air-water cooling unit arranged in parallel with the frequency converter cabinet, the air-water cooling unit includes a unit casing, and an air inlet is arranged on the top of the unit casing. The unit casing and the frequency converter cabinet are arranged in parallel, and the end faces of the two are not connected, and they can be placed close to each other. On this basis, an air collecting hood is provided. The air collecting hood has an overall rectangular structure, an opening at the lower end and a hollow interior, and an air inlet docking flange is provided at the air inlet of the unit casing. One end of the air collecting hood is connected to the unit casing through the air inlet docking flange and covers the air inlet, and the rest covers the top of the frequency converter cabinet. When the frequency converter is running, hot air flows out from the top of the frequency converter cabinet, and then is introduced into the air-water cooling unit through the air collecting hood.

[0025] In this embodiment, a radiator is disposed inside the unit casing. Preferably, the radiator adopts a V-shaped structure, with its smaller end placed at the bottom and its larger end facing the air inlet of the air-water cooling unit. Specifically, the radiator includes a first heat dissipation component and a second heat dissipation component. The first heat dissipation component and the second heat dissipation component have the same structure, and the two are arranged in a V-shape inside the unit casing.

[0026] The first heat dissipation component and the second heat dissipation component are respectively connected with a water outlet interface and a water inlet interface, wherein the water inlet interface is used to connect the external cooling water supply, and the water outlet interface is used to connect the drain pipe. After the air-water cooling unit and the inverter cabinet are arranged in parallel, the water outlet interface and the water inlet interface are located on one side of the air-water cooling unit (unit housing) (based on the figure, located on the left side of the air-water cooling unit). The other side of the air-water cooling unit (unit housing) (based on the figure, the right side of the air-water cooling unit) is opposite to the inverter cabinet. According to the layout requirements on site, a certain gap can be reserved between the air-water cooling unit and the inverter cabinet, or the two can be close to each other. In order to facilitate the maintenance of the air-water cooling unit, this embodiment is provided with an inspection and disassembly door on the right side of the unit housing.

[0027] In this embodiment, air outlets are arranged on the front and rear faces of the unit housing, wherein the front and rear faces refer to the front and rear faces of the air-water cooling unit after the air-water cooling unit and the inverter cabinet are arranged in parallel; in a further preferred solution, a protective net is arranged at the air outlet, and the protective net can adopt a shutter structure. The air-water cooling unit is connected to an external power supply, and a control panel / control box can be configured to control the device (for example, start and stop the device).

[0028] The working principle of the utility model is as follows: the wind collecting hood introduces the heat generated by the operation of the inverter into the air-water cooling unit through the air inlet, the hot air is cooled at the radiator, the heat is taken away by the cooling water circulation in the radiator, and after being converted into cold air, the cold air is transported from the radiator through the air outlet to the outside of the air-water cooling unit and returned to the inverter room.

[0029] The above is the preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the design principle and technical solution of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. An integrated air-water cooling unit for frequency conversion cabinet with external wind circulation cooling and heat dissipation, characterized in that: The invention comprises an air-water cooling unit (2) arranged in parallel with a frequency converter cabinet (1), the air-water cooling unit (2) comprising a unit casing (3), an air inlet (4) arranged at the upper end of the unit casing (3), a radiator (5) arranged in the unit casing (3), a water outlet interface (6) arranged at the upper end of one side of the unit casing (3), a water inlet interface (7) arranged at the lower end, and air outlets (8) arranged at the front end and rear end of the unit casing (3); the other side of the unit casing (3) is opposite to the frequency converter cabinet (1), and an air collecting hood (9) covering the frequency converter cabinet (1) and the unit casing (3) is arranged on the top of the two, the water outlet interface (6) and the water inlet interface (7) are connected to the radiator (5), the water inlet interface (7) is used to connect to an external cooling water supply, and the water outlet interface (6) is used to connect to a drainage pipe.

2. The integrated air-water cooling unit for frequency conversion cabinet external wind circulation cooling and heat dissipation according to claim 1 is characterized in that: An air inlet docking flange (10) for connecting to the air collecting hood (9) is provided at the air inlet (4).

3. The integrated air-water cooling unit for cooling and heat dissipation by wind circulation outside the frequency conversion cabinet according to claim 2 is characterized in that: The radiator (5) adopts a V-shaped structure, with the larger end thereof facing the air inlet (4).

4. The integrated air-water cooling unit for cooling and heat dissipation by wind circulation outside the frequency conversion cabinet according to claim 3 is characterized in that: The radiator (5) comprises a first heat dissipation component (51) and a second heat dissipation component (52), and both are connected to the water outlet interface (6) and the water inlet interface (7) respectively.

5. The integrated air-water cooling unit for cooling and heat dissipation by wind circulation outside the frequency conversion cabinet according to claim 4 is characterized in that: A protective net (11) is provided at the air outlet (8).

6. The integrated air-water cooling unit for cooling and heat dissipation by wind circulation outside the frequency conversion cabinet according to claim 5 is characterized in that: An inspection and disassembly door (12) is provided on the other side of the unit casing (3).

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