Efficient flow air suspension centrifugal blower box

Abstract

The invention provides a high-efficiency flow air suspension centrifugal blower box. The high-efficiency flow air suspension centrifugal blower box comprises an outer box body, an inner cavity of the outer box body is divided into an upper layer and a lower layer through a horizontally-fixed middle partition plate, an electric control device is installed on the lower layer, and an air suspension centrifugal compressor is installed on the upper layer. The left side face of the outer box body is provided with an air inlet right facing the lower-layer power control device, the middle partition plate is provided with an opening for ventilation, the air inlet of the air suspension centrifugal compressor faces the right side, and the top of the outer box body is provided with an air outlet for air outlet. Through three innovations of a vertical partition structure, a directional air flow chain and a closed heat management system, cooperative rising of space efficiency, heat efficiency and energy efficiency is achieved, especially under the high-temperature / high-dust working condition, the integrated heat dissipation design can remarkably prolong the service life of equipment and reduce the operation and maintenance cost, and the service life of the equipment is prolonged. The compact type high-reliability fan is especially suitable for data center cooling, sewage treatment aeration and other scenes needing a compact type high-reliability fan.

Description

TECHNICAL FIELD

[0001] The application relates to a high-efficiency flow air suspension centrifugal blower box. BACKGROUND

[0002] The air suspension pressure blower mainly utilizes an air bearing system. In operation, the high-speed rotation of the compressor rotor forms a gas film between bearings, realizes rotor suspension, avoids direct contact of mechanical parts, and eliminates friction. The impeller is driven by a high-speed permanent magnet synchronous motor. The impeller inhales air to increase the kinetic energy of the air, and converts the kinetic energy into pressure energy in the volute. Finally, the air is output through the exhaust pipe. The box is suitable for a double-pole double-blowing fan.

[0003] High-speed motor: a high-speed motor refers to a motor with a speed exceeding 10,000 revolutions per minute (rpm). Such a motor has a relatively small size due to the high speed, can be directly connected to a high-speed load, and eliminates the traditional mechanical speed-increasing device, thereby reducing the noise of the system and improving the transmission efficiency. The advantages of the high-speed motor include high power density, high transmission efficiency, low noise, and fast dynamic response.

[0004] However, in the prior art, the frequency converter and the blower are in the same cabin or in parallel cabins, and the gas flow directly enters the compressor but not the frequency converter. Since the frequency converter accumulates a large amount of heat, an additional cooling fan is required, resulting in high cost and high failure rate. In addition, since the frequency converter and the blower are not in the same cabin, the actual use volume is large. SUMMARY

[0005] To solve the above technical problems, the application provides a high-efficiency flow air suspension centrifugal blower box. The high-efficiency flow air suspension centrifugal blower box is designed based on a two-layer structure, which reduces the area occupied by the box, reduces the manufacturing cost, saves manufacturing materials, and improves the air cooling efficiency. The gas flows through the frequency converter and then enters the blower suction cabin, which can ensure that there is no external heat dissipation port and improve the efficiency of the blower.

[0006] The application is achieved by the following technical solutions.

[0007] The high-efficiency flow air suspension centrifugal blower box provided by the application comprises an outer box body. The inner cavity of the outer box body is divided into two layers by a horizontally fixed partition plate. The lower layer is provided with power control devices, and the upper layer is provided with an air suspension centrifugal compressor. The left side of the outer box body is provided with an air inlet opposite the power control devices in the lower layer. The partition plate is provided with an opening for ventilation. The air inlet of the air suspension centrifugal compressor faces the right side. The top of the outer box body is provided with an air outlet for air outlet.

[0008] The power control device is a frequency converter.

[0009] The right lower part of the outer box body is further provided with a cooling air inlet.

[0010] The left side of the outer box body is internally provided with a heat dissipation plate.

[0011] The left side of the outer box body is fixed with an air inlet frame, and the air inlet is opened on the air inlet frame.

[0012] The air inlet frame is provided with air inlets on the whole surface, so that air is inhaled on the whole surface of the air inlet frame.

[0013] The lower layer of the outer box body is provided with a bottom plate, the bottom plate is provided with a guide rail groove, and the power control device is installed on the guide rail groove.

[0014] The right side of the outer box body is externally provided with a control panel, and the control panel is electrically connected to the air suspension centrifugal compressor.

[0015] The motor is installed close to the cooling air inlet in the outer box body, and the opening ventilation position of the middle partition plate is opposite to the motor and the power control device.

[0016] The beneficial effects of the present application are: through the three innovations of vertical partition structure, directional airflow chain and closed heat management system, the synergistic leap of space efficiency, thermal efficiency and energy efficiency is realized, especially under high temperature / high dust working conditions, the integrated heat dissipation design can significantly prolong the service life of the equipment and reduce the operation and maintenance cost, and it is especially suitable for scenes such as data center cooling, sewage treatment aeration and other scenes requiring compact high-reliability fans. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of at least one embodiment of the present application;

[0018] Figure 2 is Figure 1 is a schematic diagram of the internal structure of another view.

[0019] In the figure: 11-outer box body, 12-bottom plate, 13-middle partition plate, 14-heat dissipation plate, 15-air inlet frame, 16-stable supporting leg, 21-air inlet, 22-cooling air inlet, 23-air outlet, 24-control panel. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be further described below, but the scope of protection does not limit to the description.

[0021] The first embodiment of the present application relates to as Figure 1 , Figure 2The high-efficiency flow air suspension centrifugal blower box comprises an outer box body 11; the inner cavity of the outer box body 11 is divided into two layers by a horizontally-fixed middle partition plate 13, the lower layer is provided with power control devices, and the upper layer is provided with an air suspension centrifugal compressor; the left side of the outer box body 11 is provided with an air inlet 21 opposite to the power control devices in the lower layer, the middle partition plate 13 is provided with an opening for ventilation, the air inlet of the air suspension centrifugal compressor faces the right side, and the top of the outer box body 11 is provided with an air outlet 23 for air outlet.

[0022] Preferably, the power control devices are frequency converters.

[0023] The second embodiment of the present application is basically the same as the first embodiment, and mainly differs in that the outer box body 11 is further provided with a cooling air inlet 22 on the right lower part.

[0024] Further, the motor is installed close to the cooling air inlet 22 in the inner part of the outer box body 11, and the opening ventilation position of the middle partition plate 13 is opposite to the motor and the power control devices.

[0025] Further, the outer box body 11 is provided with a control panel 24 on the right outer part, and the control panel 24 is electrically connected to the air suspension centrifugal compressor.

[0026] The third embodiment of the present application is basically the same as the first embodiment, and mainly differs in that the outer box body 11 is fixed with an air inlet frame 15 on the left side, and the air inlet 21 is opened on the air inlet frame 15.

[0027] Further, the air inlet frame 15 is provided with air inlets 21 on the whole surface, so that the air inlet frame 15 is provided with air inlets on the whole surface.

[0028] Further, the outer box body 11 is provided with a heat dissipation plate 14 on the left inner part.

[0029] Further, the outer box body 11 is provided with a bottom plate 12 on the lower bottom, the bottom plate 12 is provided with a guide rail groove, and the power control devices are installed on the guide rail groove.

[0030] Thus, the application divides the box into two layers by the partition, the lower layer is the power control layer, and the upper layer is the compressor set layer, so that the equipment height integration can be realized, and the land occupation is saved by 30%-50% compared with the traditional horizontal parallel layout. This design directly reduces the amount of raw materials of the box, simplifies the manufacturing process, reduces the welding and assembly links, and significantly reduces the manufacturing cost. And the one-way flow channel of "left air inlet → lower frequency converter → middle partition opening → upper compressor → top air outlet" is innovatively constructed, the airflow flows through the heating device (frequency converter) and the core power unit compressor in turn, the heat is used in a step-by-step manner, the temperature of the heated air after the heat dissipation of the frequency converter enters the compressor suction chamber, the suction temperature can be improved, but the overall efficiency is greatly improved after the compensation by the self-cooling characteristics of the air suspension bearing, and for the air flow of the frequency converter heat dissipation, the negative pressure suction effect based on the compressor is formed, the additional fan is effectively avoided, and then the equipment cost and operation energy consumption are effectively reduced, and the failure rate is effectively reduced, the air flow short circuit problem caused by the heat dissipation hole in the traditional technology is completely eliminated, and the heat exchange efficiency is significantly improved. At the same time, the power control layer and the mechanical vibration layer are physically isolated, especially the vibration conduction is isolated by the partition, so that the impact of electromagnetic interference on the precision frequency conversion circuit is effectively reduced, and the failure rate is greatly reduced.

Claims

1. A high-efficiency flow air suspension centrifugal blower box, comprising an outer box body (11), characterized in that: The inner cavity of the outer box (11) is divided into two layers, upper and lower, by a horizontally fixed middle partition (13); the lower layer is equipped with an electric control device, and the upper layer is equipped with an air suspension centrifugal compressor; an air inlet (21) is provided on the left side of the outer box (11) facing the electric control device in the lower layer, an opening is provided on the middle partition (13) for ventilation, an air inlet of the air suspension centrifugal compressor faces right, and an air outlet (23) is provided on the top of the outer box (11) for air discharge.

2. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: The power control device is a frequency converter.

3. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: A cooling air vent (22) is also provided at the lower right side of the outer box body (11).

4. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: A heat dissipation plate (14) is installed inside the left side of the outer box (11).

5. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: An air inlet frame (15) is fixed on the left side of the outer box body (11), and an air inlet (21) is opened on the air inlet frame (15).

6. The high-efficiency flow air suspension centrifugal blower chassis according to claim 5, characterized in that: The entire surface of the air inlet frame (15) is provided with air inlets (21) so that air can enter the entire surface of the air inlet frame (15).

7. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: The bottom of the lower layer of the outer box body (11) is provided with a bottom plate (12), the bottom plate (12) is provided with a guide rail groove, and the power control device is installed on the guide rail groove.

8. The high-efficiency flow air suspension centrifugal blower chassis according to claim 1, characterized in that: A control panel (24) is installed on the right side of the outer box (11), and the control panel (24) is electrically connected to the air suspension centrifugal compressor.

9. The high-efficiency flow air suspension centrifugal blower chassis according to claim 3, characterized in that: Inside the outer box (11), the motor is installed close to the cooling air outlet (22), and the ventilation position of the opening on the middle partition (13) is directly opposite to the space between the motor and the power control device.

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