Space-saving heat exchanger

Abstract

The utility model discloses a space-saving heat exchanger, and relates to the technical field of heat exchange. The heat exchanger is provided with a heat exchange shell which is sequentially divided into a hot fluid area, a heat exchange area and a cold fluid area from top to bottom. A centrifugal fan for driving hot fluid to flow and a control panel for controlling a circuit are arranged in the hot fluid area; a heat exchange core is arranged in the heat exchange area; and at least two groups of axial fans for driving cold fluid to flow are arranged in the cold fluid area, and the power of the axial fans is smaller than that of the centrifugal fans. In order to transfer the control board into the hot fluid area to save the space of the heat exchange shell, the number of centrifugal fans needs to be reduced. Meanwhile, the power of the centrifugal fan needs to be increased in order to ensure that the air flow does not change greatly. In this way, the space in the heat exchange shell can be saved, and meanwhile the heat exchange efficiency is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a space-saving heat exchanger. Background Art

[0002] A heat exchanger, also known as a heat exchanger or heat exchange equipment, is a device that transfers heat from a hot fluid to a cold fluid to meet heat exchange requirements. It is an industrial application of convective heat transfer and heat conduction.

[0003] In the reference document CN110145953A, the air in the heat exchanger is made to flow by a fan at the top and bottom. For large equipment, it is necessary to add multiple fans to make the heat dissipation efficiency in the heat exchanger higher. However, the space occupied by multiple fans is large, so that the control panel, circuits, etc. of the heat exchanger have nowhere to be placed. Therefore, a heat exchanger is needed that can simultaneously take into account: increasing the amount of air circulation and reducing the space occupied by the motor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a space-saving heat exchanger, which can save space inside the heat exchanger while increasing the air flow rate inside the heat exchanger.

[0005] The technical solution of the utility model is: a space-saving heat exchanger, including a heat exchange shell, which is divided from top to bottom into: a hot fluid zone, a heat exchange zone and a cold fluid zone; a centrifugal fan for driving the flow of the hot fluid and a control board for controlling the circuit are arranged in the hot fluid zone; a heat exchange core is arranged in the heat exchange zone; an axial flow fan for driving the flow of the cold fluid and having a power less than that of the centrifugal fan is arranged in the cold fluid zone, and the axial flow fans are at least two groups.

[0006] Furthermore, the heat exchange shell is provided with a front cover and a rear cover respectively along the front and rear directions, a hot fluid inlet is provided on the top surface of the heat exchange shell, and a hot fluid outlet is provided on the front cover, and the hot fluid outlet is located below the heat exchange core.

[0007] Furthermore, a cold fluid inlet is provided on the bottom surface of the heat exchange shell, and a cold fluid outlet is provided on the rear cover, and the cold fluid outlet is located above the heat exchange core.

[0008] Furthermore, a filter screen is provided at the cold fluid inlet.

[0009] Furthermore, a support frame for installing a centrifugal fan is also provided in the thermal fluid area.

[0010] Furthermore, ventilation holes are provided on the side of the support frame.

[0011] Furthermore, a hand operator is provided on the heat exchange shell.

[0012] The beneficial technical effects of the utility model are:

[0013] In order to move the control panel into the hot fluid area to save space in the heat exchange housing, the number of centrifugal fans needs to be reduced. At the same time, in order to ensure that the air flow does not change too much, the power of the centrifugal fans needs to be increased. In this way, the space in the heat exchange housing can be saved without affecting the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the space-saving heat exchanger of the utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a space-saving heat exchanger after removing the heat exchange shell. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of the space-saving heat exchanger of the utility model. Figure 2 ;

[0017] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0018] Figure 5 This is a schematic diagram of the structure of a space-saving heat exchanger after removing the heat exchange shell. Figure 2 ;

[0019] Figure 6 Schematic diagram of air flow for hot fluid circulation (left) and cold fluid circulation (right).

[0020] Among them, 100, heat exchange housing; 110, front cover; 111, hot fluid outlet; 120, rear cover; 121, cold fluid outlet; 130, hot fluid inlet; 140, cold fluid inlet; 141, filter; 150, hand operator;

[0021] 200, hot fluid area; 210, centrifugal fan; 220, control panel; 230, support frame; 231, ventilation hole;

[0022] 300, heat exchange area; 310, heat exchange core;

[0023] 400. Cold fluid zone; 410. Axial flow fan. DETAILED DESCRIPTION

[0024] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] This specific embodiment relates to a space-saving heat exchanger, as shown in FIG. Figure 1 and Figure 2 As shown, it includes a heat exchange shell 100. A hand operator 150 is arranged on the heat exchange shell 100. The hand operator 150 is located at the upper part of the heat exchange shell 100, and the hand operator 150 is used to display and monitor various data in the heat exchange shell 100. The heat exchange shell 100 will be installed in a cabinet, and the heat exchange shell 100 is used for heat dissipation of the cabinet. Therefore, during the operation of the utility model, the hand operator 150 is located in the cabinet. When a problem occurs during the operation, it is necessary to open the cabinet door and observe the working condition of the heat exchanger through the hand operator 150. The heat exchange shell 100 is respectively provided with a front cover 110 and a rear cover 120 in the front and rear directions, and the heat exchange shell 100 is divided into: a hot fluid area 200, a heat exchange area 300 and a cold fluid area 400 from top to bottom.

[0026] like Figure 1 , Figure 2 and Figure 5 As shown, a centrifugal fan 210 for driving the flow of the thermal fluid and a control board 220 for controlling the circuit are provided in the thermal fluid area 200. The centrifugal fan 210 blows the thermal fluid to circulate. The utility model removes one of the centrifugal fans 210, and the freed space is used to install the control board 220. At the same time, the power of the centrifugal fan 210 is increased to ensure the flow rate of the thermal fluid. A thermal fluid inlet 130 is provided on the top surface of the heat exchange housing 100, and the hot air in the cabinet will enter the heat exchange housing 100 through the thermal fluid inlet 130. The front cover 110 is provided with a thermal fluid outlet 111, and the thermal fluid outlet 111 is located below the heat exchange core 310. The thermal fluid will cool down after passing through the heat exchange housing 100, and then flow back to the original machine. A support frame 230 for installing the centrifugal fan 210 is also provided in the thermal fluid area 200. If the number of centrifugal fans 210 is reduced, the power of the centrifugal fans 210 needs to be increased, and the volume of the centrifugal fans 210 also needs to be increased, which requires the support frame 230 to support the centrifugal fans 210 so that the centrifugal fans 210 are located above the heat exchange core 310. The side of the support frame 230 is provided with ventilation holes 231. The ventilation holes 231 are used for side ventilation of the support frame 230 to reduce wind resistance. The ventilation holes 231 are distributed in an array on the side of the support frame 230.

[0027] like Figure 2As shown, a heat exchange core 310 is provided in the heat exchange area 300. The heat exchange core 310 includes a plurality of fins spaced apart along the length direction of the heat exchange housing 100. The hot fluid and the cold fluid are blown into the heat exchange core 310 and then heat is exchanged through the fins. The heat exchange core 310 is located below the centrifugal fan 210 so that the wind blown by the centrifugal fan 210 can flow into the heat exchange core 310.

[0028] like Figures 2 to 4 As shown, an axial flow fan 410 for driving the flow of the cold fluid is provided in the cold fluid zone 400. The power of the axial flow fan 410 is less than that of the centrifugal fan 210 and there are at least two groups. The number of axial flow fans 410 has not been reduced, so that a large amount of cold fluid can enter the heat exchange core 310. A cold fluid inlet 140 is provided on the bottom surface of the heat exchange shell 100, and a filter screen 141 is provided at the cold fluid inlet 140. The rear cover 120 is provided with a cold fluid outlet 121, and the cold fluid outlet 121 is located above the heat exchange core 310. The cold fluid is air in the environment, which is used to accelerate the cooling of the heat exchange core 310.

[0029] Working principle: Figure 6 As shown, the hot fluid in the cabinet is blown into the heat exchange housing 100 through the centrifugal fan 210, and the route diagram on the left is the flow route of the hot fluid. The hot fluid passes through the heat exchange core 310 and transfers the heat to the fins in the heat exchange core 310. The hot fluid will eventually flow back into the cabinet. At the same time, the axial fan 410 blows the gas in the environment into the heat exchange core 310, absorbs the heat on the fins, and finally transports the heat on the fins to the environment, thereby achieving the effect of cooling. The route diagram on the right is the flow route of the cold fluid.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A space-saving heat exchanger, characterized in that: The heat exchange shell (100) is divided into a hot fluid area (200), a heat exchange area (300) and a cold fluid area (400) from top to bottom; The thermal fluid zone (200) is provided with a centrifugal fan (210) for driving the thermal fluid to flow and a control panel (220) for controlling the circuit; A heat exchange core (310) is disposed in the heat exchange area (300); An axial flow fan (410) is arranged in the cold fluid zone (400) to drive the cold fluid to flow and has a power lower than that of the centrifugal fan (210). The axial flow fans (410) are in at least two groups.

2. The space-saving heat exchanger according to claim 1, characterized in that: The heat exchange shell (100) is provided with a front cover (110) and a rear cover (120) in the front-to-back direction, respectively; a hot fluid inlet (130) is provided on the top surface of the heat exchange shell (100); the front cover (110) is provided with a hot fluid outlet (111); and the hot fluid outlet (111) is located below the heat exchange core (310).

3. The space-saving heat exchanger according to claim 1, characterized in that: The bottom surface of the heat exchange shell (100) is provided with a cold fluid inlet (140), and the rear cover (120) is provided with a cold fluid outlet (121), and the cold fluid outlet (121) is located above the heat exchange core (310).

4. The space-saving heat exchanger according to claim 3, characterized in that: A filter screen (141) is provided at the cold fluid inlet (140).

5. The space-saving heat exchanger according to claim 1, characterized in that: A support frame (230) for mounting a centrifugal fan (210) is also provided in the thermal fluid zone (200).

6. The space-saving heat exchanger according to claim 5, characterized in that: A ventilation hole (231) is provided on the side of the support frame (230).

7. The space-saving heat exchanger according to claim 1, characterized in that: A hand operator (150) is provided on the heat exchange housing (100).

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