A fan integrated air compression and cooling water supply centrifugal air compressor system

Abstract

The application discloses a fan integrated air compression and cooling water supply centrifugal air compressor system, and relates to the technical field of air compressors, which comprises an air compressor and a water pump, wherein the air compressor comprises an air compressor shell, a cooling water channel is arranged in the air compressor shell, the water pump comprises a water pump shell, a water channel is arranged in the water pump shell, the water pump and the air compressor are coaxially connected, the water pump load and the air compressor load have the same speed, and the water pump load can be automatically adjusted according to the change of the air compressor load. The application can save control resource cost, prevent liquid from leaking from the water pump or entering the air compressor, reduce assembly difficulty, save cost, and enhance heat dissipation capacity.

Description

Technical Field

[0001] This invention relates to the field of air compressor technology, and more particularly to a centrifugal air compressor system for integrating air compression and cooling water supply with a fan. Background Technology

[0002] Industrial centrifugal air compressors are mainly cooled in two ways: air-cooled and water-cooled. Air-cooled air compressors use a built-in cooling impeller to drive air to flow actively over the motor and bearing components, carrying away heat and ensuring normal system operation. Water-cooled air compressors have cooling water channels on the outermost ring of the motor housing, connected to a water pump and radiator. The water pump provides circulation power for the cooling water, which carries away heat from the motor through the cooling water channels in the motor housing. The cooling water itself cools down after passing through the radiator. This cycle ensures the air compressor operates within its normal temperature range. However, air-cooled air compressors directly supply cooling air to the motor, which is susceptible to dust and other impurities in complex environments, potentially entering the motor and clogging the shaft and bearings. Traditional water-cooling structures are complex and not conducive to integrated installation.

[0003] In summary, existing technologies have the following problems: The water pump's load requires the control system to monitor the air compressor's load conditions to adjust the pump speed, making load adjustment complex. The coaxial drive of the water pump integrated into the air compressor cannot achieve complete sealing of the air and water passages, leading to water leakage from the pump or water entering the air compressor. The water pump is located independently of the air compressor; its fixed position, water circuit connection to the air compressor, and power supply all require additional resources. The water pump's water passages are independent of the air compressor motor housing water passages, do not contact the air compressor body, and lack cooling functionality.

[0004] Therefore, those skilled in the art are dedicated to developing a centrifugal air compressor system for integrated air compression and cooling water supply in fans. Summary of the Invention

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is how to automatically adjust the speed of the water pump according to the changes in the air compressor load.

[0006] To achieve the above objectives, the present invention provides a centrifugal air compressor system for integrated air compression and cooling water supply, comprising an air compressor and a water pump. The air compressor includes an air compressor housing with cooling water channels disposed within it. The water pump includes a water pump housing with water channels disposed within it. The water pump and the air compressor are coaxially connected, and the load of the water pump is coaxial with and rotates at the same speed as the load of the air compressor, enabling the water pump load to be automatically adjusted according to changes in the air compressor load.

[0007] Furthermore, the water pump is integrated into the air compressor.

[0008] Furthermore, the air compressor includes a rotating shaft, the air compressor is mounted on the rotating shaft via an air bearing, and the water pump is mounted on the rotating shaft on one side of the air compressor.

[0009] Furthermore, it also includes a fan wheel, which is mounted on the shaft on the other side of the air compressor.

[0010] Furthermore, the wind turbine includes a pressure wheel.

[0011] Furthermore, the air bearing gas outlet is located on the sealing surface of the air compressor and the water pump, and the water pump is sealed by high-pressure gas and mechanical means.

[0012] Furthermore, the water pump is equipped with a switch valve upstream, a check valve downstream, and a time delay switch.

[0013] Furthermore, the switching valve is an electrically controlled switching valve, the switching valve is associated with the compressor's operating state, and the one-way valve is an anti-backflow one-way valve.

[0014] Furthermore, the air compressor cooling water channel and the water pump water channel are integrally cast.

[0015] Furthermore, the air compressor cooling water channel is also connected to the radiator.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) Connect the air compressor and water pump coaxially, and the water pump load and the air compressor load are coaxial and rotate at the same speed, so as to realize the automatic adjustment of the water pump load and save the resource cost of the control system.

[0018] (2) When the air compressor system is running, the high-pressure gas after the air compressor flows through the air bearing to seal the water pump; when the air compressor system is shut down, measures such as setting a switch valve upstream of the water pump, setting a check valve downstream of the water pump, and setting a water pump delay switch are adopted to prevent liquid from leaking from the water pump or entering the air compressor.

[0019] (3) The air compressor and water pump are coaxially connected, and the water pump is integrated into the air compressor. No additional layout space, no additional connection pipelines, and no additional power supply control are required, which reduces the assembly difficulty and saves costs.

[0020] (4) The water pump channel and the air compressor channel are cast as one piece, which increases the contact area between the air compressor motor and the cooling channel and improves the heat dissipation capacity.

[0021] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the integrated water pump structure of the air compressor according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the air compressor integrated water pump air-liquid seal control principle in an embodiment of the present invention.

[0024] Wherein: 1-Wind impeller, 2-Air bearing 1, 3-Shaft, 4-Air bearing 2, 5-Water pump housing, 6-Water pump impeller, 7-Air compressor housing, 8-Compressor wheel, 9-Inlet airflow, 10-Compressor housing air passage, 11-Outlet airflow, 12-Bearing cooling airflow, 13-Air compressor cooling waterflow, 14-Air compressor cooling water passage, 15-Water pump water passage, 16-Water pump waterflow, 17-Anti-backflow check valve, 18-Electrically controlled switch valve. Detailed Implementation

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0026] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0027] This invention proposes a centrifugal air compressor system for integrating air compression and cooling water supply in a fan. It includes an air compressor, a water pump, a fan impeller 1, and a rotating shaft 3. The water pump and air compressor are coaxially connected, with the water pump integrated into the air compressor. The water pump load and air compressor load are coaxial and rotate at the same speed, enabling automatic adjustment of the water pump load according to changes in the air compressor load. The air compressor is a centrifugal air compressor, mounted on the rotating shaft 3 via an air bearing 4. The water pump is mounted on one side of the air compressor on the rotating shaft 3, and the fan impeller is mounted on the other side of the air compressor on the rotating shaft 3. Cooling water channels are provided within the air compressor housing 7, and water channels are provided within the water pump housing 5. The air compressor cooling water channel 14 and the water pump water channel 15 are integrally cast, increasing the contact area between the motor and the water channels. The air compressor cooling water channel 14 is also connected to a radiator.

[0028] When the air compressor is running, the air bearing 4 of the air compressor takes high-pressure gas from the back of the compressor to support the bearing. The gas outlet of the air bearing 4 is located at the sealing surface of the air compressor and the water pump. The water pump is sealed by high-pressure gas and mechanical means to prevent water from flooding the shaft and the gaps in the housing of the water pump and causing liquid leakage.

[0029] An upstream switch valve, electrically controlled valve 18, is installed on the water pump. This valve is linked to the compressor's operating status, and its operation is synchronized with the compressor's. When the compressor is stopped, there is no high-pressure air to seal the water pump, and the valve automatically closes the water passage. Downstream of the water pump, a check valve, anti-backflow check valve 17, prevents backflow of liquid after passing through the pump when the compressor is stopped. Additionally, the water pump is equipped with a time-delay switch to delay its shutdown. These three measures ensure that no liquid remains in the water pump after the compressor stops, preventing leakage.

[0030] When the air compressor system is running, because the air compressor and water pump are coaxially mounted, they operate synchronously. The impeller 1 rotates, and the inlet airflow 9 enters the compressor housing air passage 10. Driven by the pressure roller 8, the airflow passes through the air compressor motor and air bearing 4, carrying away system heat to ensure normal operation. This supports the operation of the air bearing 4 and cools the air compressor system. The bearing cooling airflow 12 then flows out through the air outlet of the air bearing 4, sealing the water pump. This, combined with the mechanical seal, forms a double seal for the water pump, preventing water from flooding the shaft and leaking through the housing gaps, thus preventing liquid leakage. Simultaneously, the water flow 16 pumped by the water pump passes through the anti-backflow check valve 17 and the electrically controlled switch valve 18, then enters the air compressor cooling water channel 14 and flows through the air compressor housing 7. The air compressor cooling water flow 13 cools the air compressor system. Afterward, the air compressor cooling water flow 13 flows out of the air compressor cooling water channel 14, is cooled by the radiator, and then enters the water pump channel 15. The water pump provides circulation power for the cooling water. The cooling water carries away the heat from the air compressor system through the air compressor cooling water channel 14, and its own temperature decreases after passing through the radiator. This cycle ensures that the air compressor system operates within the normal temperature range.

[0031] When the air compressor system stops running, there is no high-pressure air to seal the water pump. The air compressor system automatically closes the water passage through the switch valve upstream of the water pump, prevents backflow of liquid after passing through the water pump through the one-way valve downstream of the water pump, and delays the shutdown of the water pump through the water pump delay switch to ensure that there is no liquid stagnation in the water pump after shutdown and to prevent liquid leakage.

[0032] This invention coaxially connects an air compressor and a water pump, ensuring the water pump load and air compressor load are coaxial and rotate at the same speed, enabling automatic adjustment of the water pump load and saving control system resource costs. During air compressor system operation, high-pressure gas flows through the air bearing after the air compressor to seal the water pump. When the air compressor system stops, measures such as an upstream on / off valve, a downstream check valve, and a delayed on / off switch prevent liquid leakage from the water pump or into the air compressor. Coaxial connection of the air compressor and water pump integrates the water pump into the air compressor, eliminating the need for additional space, connecting pipes, and power supply control, reducing assembly difficulty and saving costs. The integrated casting of the water pump and air compressor water channels increases the contact area between the air compressor motor and the cooling water channels, improving heat dissipation.

[0033] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A centrifugal air compressor system for integrating air compression and cooling water supply in a fan, characterized in that, The system includes an air compressor and a water pump. The air compressor includes an air compressor housing with a cooling water channel inside. The water pump includes a water pump housing with a water channel inside. The water pump and the air compressor are coaxially connected. The load of the water pump is coaxial with the load of the air compressor and rotates at the same speed. The water pump load can be automatically adjusted according to the change of the air compressor load. The water pump is integrated into the air compressor; The air compressor includes a rotating shaft, the air compressor is mounted on the rotating shaft via an air bearing, and the water pump is mounted on the rotating shaft on one side of the air compressor. It also includes a fan wheel, which is mounted on the shaft on the other side of the air compressor; The air bearing gas outlet is located on the sealing surface of the air compressor and the water pump, and the water pump is sealed by high-pressure gas and mechanical means.

2. The centrifugal air compressor system for integrated air compression and cooling water supply as described in claim 1, characterized in that, The wind turbine includes a pressure wheel.

3. The centrifugal air compressor system for integrated air compression and cooling water supply as described in claim 2, characterized in that, The water pump is equipped with a switch valve upstream and a check valve downstream, and the water pump is also equipped with a time delay switch.

4. The centrifugal air compressor system for integrated air compression and cooling water supply as described in claim 3, characterized in that, The switching valve is an electrically controlled switching valve, which is associated with the compressor's operating status, and the check valve is an anti-backflow check valve.

5. The centrifugal air compressor system for integrated air compression and cooling water supply as described in any one of claims 1-4, characterized in that, The air compressor cooling water channel and water pump water channel are integrally cast.

6. The centrifugal air compressor system for integrated air compression and cooling water supply as described in claim 5, characterized in that, The air compressor cooling water channel is also connected to the radiator.

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