Air-cooled screw compressor heat exchange device

Abstract

The utility model discloses an air-cooled screw air compressor and a heat exchange device thereof, wherein the heat exchange device comprises an air suction hood, a heat exchanger, a heat exchanger bracket, a collector, a centrifugal fan, a bellows and a driving mechanism; the heat exchanger is arranged on the heat exchanger bracket, and the air suction hood is arranged on a first side of the heat exchanger; a first window is arranged on the top of the air suction hood; the centrifugal fan is arranged in the bellows, and the collector is arranged between the centrifugal fan and the heat exchanger bracket; a through hole is arranged in the area of ​​the heat exchanger bracket close to the collector, so that the internal space formed by the heat exchanger bracket can be connected with the collector; a second window is arranged on the top of the bellows; the driving mechanism is connected to the centrifugal fan and can drive the centrifugal fan to rotate. The air-cooled screw air compressor and the heat exchange device thereof proposed by the utility model can improve the heat exchange efficiency of the air-cooled screw air compressor system and save energy consumption.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressors, and relates to an air-cooled screw air compressor, in particular to a heat exchange device for an air-cooled screw air compressor. Background Art

[0002] There are two main types of heat exchange technologies used in existing air-cooled screw air compressors: one is axial fan heat exchange, and the other is centrifugal fan heat exchange. The latter is widely used in the field of high-end air-cooled screw air compressors due to its advantages such as high wind pressure and low noise; however, the air duct of the centrifugal fan heat exchange system currently has some defects.

[0003] At present, the air intake for absorbing the heat inside the chassis in the air duct of the centrifugal fan heat exchange system is designed after the heat exchanger, that is, on the sealing covers on both sides of the heat exchanger bracket. This will reduce the air volume passing through the heat exchanger and reduce the heat exchange efficiency when using the same specification centrifugal fan.

[0004] In view of this, there is an urgent need to design a new air-cooled screw air compressor heat exchange device to overcome at least part of the above-mentioned defects of the existing air-cooled screw air compressor heat exchange device. Utility Model Content

[0005] The utility model provides a heat exchange device for an air-cooled screw air compressor, which can improve the heat exchange efficiency of the air-cooled screw air compressor system and save energy consumption.

[0006] In order to solve the above technical problems, according to one aspect of the utility model, the following technical solution is adopted:

[0007] A heat exchange device for an air-cooled screw air compressor, the heat exchange device comprising: an air suction hood, a heat exchanger, a heat exchanger bracket, a collector, a centrifugal fan, a bellows and a driving mechanism;

[0008] The heat exchanger is arranged on the heat exchanger bracket, and the air suction hood is arranged on the first side of the heat exchanger; a first window is arranged on the top of the air suction hood;

[0009] The centrifugal fan is arranged in the wind box, and the collector is arranged between the centrifugal fan and the heat exchanger bracket; a through hole is arranged in the area of ​​the heat exchanger bracket close to the collector, so that the internal space formed by the heat exchanger bracket can be connected with the collector; a second window is arranged on the top of the wind box;

[0010] The driving mechanism is connected to the centrifugal fan and can drive the centrifugal fan to rotate, thereby driving the cold air outside the air compressor to pass through the air suction hood, heat exchanger, heat exchanger bracket, collector, centrifugal fan, and bellows in sequence, and be discharged from the second window of the bellows; the airflow inside the air compressor is extracted by the centrifugal fan through the first window of the air suction hood, ensuring that the heat in the air compressor chassis is dissipated in time.

[0011] As an implementation manner of the present utility model, the driving mechanism is an electric motor.

[0012] As an implementation mode of the utility model, the heat exchanger is respectively provided with a medium inlet and a medium outlet; the medium inlet is used to connect hot oil, and the medium outlet outputs cold oil after heat exchange.

[0013] As an implementation mode of the utility model, one side or both sides of the heat exchanger bracket are provided with an opening, and a sealing cover is provided at the opening.

[0014] The beneficial effect of the utility model is that the air-cooled screw air compressor heat exchange device proposed by the utility model can improve the heat exchange efficiency of the air-cooled screw air compressor system and save energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a heat exchange device for an air-cooled screw air compressor in one embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of an air-cooled screw air compressor in one embodiment of the utility model. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0018] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0019] The description in this section is only for several typical embodiments, and the present invention is not limited to the scope of the embodiments. The same or similar prior art means and some technical features in the embodiments are mutually replaced and are also within the scope of the present invention.

[0020] The term “connection” in the specification includes both direct connection and indirect connection.

[0021] The utility model discloses a heat exchange device for an air-cooled screw air compressor. Figure 1 This is a schematic diagram of the structure of the heat exchange device of the air-cooled screw compressor in one embodiment of the utility model; please refer to Figure 1 The heat exchange device includes: an air suction hood 1, a heat exchanger 2, a heat exchanger bracket 3, a collector 4, a centrifugal fan 5, a bellows 6 and a driving mechanism 7.

[0022] The heat exchanger 2 is arranged on the heat exchanger support 3, and the air suction hood 1 is arranged on the first side of the heat exchanger 2; a first window 11 is arranged on the top of the air suction hood 1. The centrifugal fan 5 is arranged in the wind box 6, and the collector 4 is arranged between the centrifugal fan 5 and the heat exchanger support 3; a through hole 31 is arranged in the area of ​​the heat exchanger support 3 close to the collector 4, so that the internal space formed by the heat exchanger support 3 can be connected with the collector 4; a second window 61 is arranged on the top of the wind box 6.

[0023] The driving mechanism 7 is connected to the centrifugal fan 6 and can drive the centrifugal fan 6 to rotate, thereby driving the cold air outside the air compressor to pass through the air suction hood 1, the heat exchanger 2, the heat exchanger bracket 3, the collector 4, the centrifugal fan 5, and the bellows 6 in sequence, and be discharged from the second window 61 of the bellows 6, so as to achieve heat exchange between the cold air and the hot oil, and ensure the stability of the exhaust temperature of the air compressor; the airflow inside the air compressor is extracted by the centrifugal fan 5 through the first window 11 of the air suction hood 1, so as to ensure that the heat in the air compressor chassis is dissipated in time and the temperature is stable. In one embodiment, the driving mechanism 7 is an electric motor.

[0024] In an embodiment of the present utility model, the heat exchanger 2 is provided with a medium inlet 21 and a medium outlet 22; the medium inlet 21 is used to connect hot oil, and the medium outlet 22 outputs cold oil after heat exchange.

[0025] In addition, one or both sides of the heat exchanger support 3 are provided with an opening 31, and a sealing cover 9 is provided at the opening 31. The sealing cover 9 is mainly used for maintaining (cleaning) the cooler (ie, the heat exchanger), and no mesh hole (air suction port) is provided on the sealing cover 9.

[0026] An air-cooled screw air compressor comprises the above-mentioned air-cooled screw air compressor heat exchange device.

[0027] In one embodiment of the utility model, the air-cooled screw air compressor also includes a chassis 8, and the chassis 8 is provided with a chassis cold air inlet 81; after the cold air outside the chassis 8 completes heat exchange in the chassis 8, it is extracted through the first window 11 on the top of the suction hood 1 under the suction force of the centrifugal fan 5.

[0028] Since the air suction hood 1 is arranged before the heat exchanger, the air volume passing through the heat exchanger 2 will not be reduced, and the air temperature in the chassis 8 is much lower than the temperature of the hot oil coming out of the compressor, thereby improving the heat exchange efficiency of the system and saving energy consumption.

[0029] In summary, the air-cooled screw air compressor heat exchange device proposed in the utility model can improve the heat exchange efficiency of the air-cooled screw air compressor system and save energy consumption.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The description and application of the utility model here are illustrative, and it is not intended to limit the scope of the utility model to the above-mentioned embodiments. The effects or advantages involved in the embodiments may not be embodied in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. The deformation and changes of the embodiments disclosed here are possible, and the replacement of the embodiments and the various equivalent components are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that the utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials and parts without departing from the spirit or essential features of the utility model. Other deformations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the utility model.

Claims

1. A heat exchange device for an air-cooled screw compressor, characterized in that: The heat exchange device comprises: an air suction hood, a heat exchanger, a heat exchanger bracket, a collector, a centrifugal fan, a bellows and a driving mechanism; The heat exchanger is arranged on the heat exchanger bracket, and the air suction hood is arranged on the first side of the heat exchanger; a first window is arranged on the top of the air suction hood; The centrifugal fan is arranged in the wind box, and the collector is arranged between the centrifugal fan and the heat exchanger bracket; a through hole is arranged in the area of ​​the heat exchanger bracket close to the collector, so that the internal space formed by the heat exchanger bracket can be connected with the collector; a second window is arranged on the top of the wind box; The driving mechanism is connected to the centrifugal fan and can drive the centrifugal fan to rotate, thereby driving the cold air outside the air compressor to pass through the air suction hood, heat exchanger, heat exchanger bracket, collector, centrifugal fan, and bellows in sequence, and be discharged from the second window of the bellows; the airflow inside the air compressor is extracted by the centrifugal fan through the first window of the air suction hood, ensuring that the heat in the air compressor chassis is dissipated in time.

2. The air-cooled screw compressor heat exchange device according to claim 1, characterized in that: The driving mechanism is an electric motor.

3. The air-cooled screw compressor heat exchange device according to claim 1, characterized in that: The heat exchanger is respectively provided with a medium inlet and a medium outlet; the medium inlet is used to connect hot oil, and the medium outlet outputs cold oil after heat exchange.

4. The air-cooled screw compressor heat exchange device according to claim 1, characterized in that: One side or both sides of the heat exchanger support are provided with openings, and sealing covers are provided at the openings.

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