Wind power generation cabin air water cooler

Abstract

The utility model relates to a wind power generation cabin air water cooler which comprises a box body and a centrifugal fan and is characterized in that an air inlet box is communicated with the left side of the box body, the lower end of the air inlet box is connected with an air inlet flange, the left side of the air inlet box is arranged to be of a structure inclining towards the right inner side, and a plurality of installation holes are formed in the front end face of the box body. The right side of the box body is communicated with an air outlet box, the right side of the air outlet box is communicated with two fan boxes which are symmetrical front and back, the section of each fan box is in a U shape, the lower end of each fan box is connected with an air outlet flange, an impeller is installed in each fan box, and a motor is installed in the right side of each fan box and connected with the corresponding impeller. The air inlet box and the air outlet box are provided with middle partition plates for separating front and rear inner cavities of the air inlet box and the air outlet box in the left-right direction, and the middle partition plates are correspondingly arranged between the two impellers; a water baffle is arranged in the air outlet box and is not lower than the center of the impeller, and a water collecting disc is arranged on the left side of the water baffle. The heat exchanger is simple and compact in structure, contributes to equipment weight reduction and gives consideration to heat exchange efficiency and power consumption.

Description

Technical Field

[0001] This utility model relates to a cooler, specifically a wind turbine cabin air-water cooler. Background Technology

[0002] With the gradual rise of clean energy, wind power, as a renewable energy source, is becoming a vital part of the world's energy sector and a green renewable energy source. In this rapidly developing industry, wind turbine generators are the core equipment, and their safe and stable operation is crucial. However, the high-speed operating environment of wind turbine generators generates a large amount of heat, necessitating the development of water-cooling systems to ensure their safe operation.

[0003] In wind turbine generators, the cooling system is crucial for ensuring the continuous and stable operation of the generator. The wind turbine cooler is a core component of this system; its high-efficiency cooling performance ensures stable operation of the unit even in high-temperature and extreme environments, while also extending the generator's lifespan and improving efficiency. Older air-water coolers, also composed of a fan, heat exchanger, and housing, consist of a heat exchanger, airflow guide, and fan casing housed in a welded steel plate fume hood. This results in a large external size, complex internal structure, high airflow resistance, and higher cost. Furthermore, older air-water coolers use standard fans with large fan casings, necessitating modifications to the external dimensions or structure to meet assembly requirements. The symmetrical, angled placement of two centrifugal fans for heat exchange inevitably causes airflow collisions into the generator, artificially increasing fan resistance, reducing cooler efficiency, and making the fans prone to overload and high power consumption.

[0004] Therefore, due to the limited space, numerous equipment, and weight restrictions in the nacelle of wind turbine generator sets, this old-style air-water cooler is simply not suitable for the needs of power generator sets and is only applicable to large, high-power motors used on land. Summary of the Invention

[0005] This invention provides a wind turbine nacelle air-water cooler with a simple and compact structure that helps reduce equipment weight while balancing heat exchange efficiency and power consumption.

[0006] The technical solution adopted by this utility model is: a wind turbine nacelle air-water cooler, including a housing and a centrifugal fan, characterized in that: an air inlet box is connected to the left side of the housing, and an air inlet flange is connected to the lower end of the air inlet box. The air inlet flange is bolted and installed at one end of the generator and connects to the generator's internal cavity. The left side of the air inlet box is designed with a rightward inward tilting structure. Multiple mounting holes are opened on the front surface of the housing, and drawer-type plate-fin water-cooled heat exchangers are inserted into the mounting holes via guide rails. An air outlet box is connected to the right side of the housing, and two symmetrically arranged fan housings are connected to the right side of the air outlet box. The cross-section of the fan housing is... The U-shaped fan box has an outlet flange at its lower end. The outlet flange is bolted to the other end of the generator and connects to the generator's internal cavity. The centrifugal fan impeller is installed inside the fan box, and the centrifugal fan motor is installed on the right side of the fan box, with the motor's output shaft extending into the fan box and connecting to the impeller. The inlet and outlet boxes are equipped with a partition plate that separates the front and rear cavities of the inlet and outlet boxes in the left-right direction. The partition plate is located between the two impellers. The outlet box is equipped with a baffle plate that is not lower than the center of the impeller. A water collection tray is installed on the left side of the baffle plate, and the water collection tray is connected to the outlet box via a drain pipe.

[0007] The center of the impeller and the center of the upper arc of the inverted U-shaped section of the fan box are on the same horizontal axis.

[0008] The lower end of the motor is supported on the right side of the fan box by a support frame.

[0009] The upper part of the box is equipped with lifting lugs.

[0010] Both the air inlet box and the air outlet box are equipped with wind pressure sensors.

[0011] An inspection door is provided on the front and / or rear end face of the air outlet box.

[0012] The right side of the fan box is covered by the fan box end cover, and the motor output shaft passes through the fan box end cover and is connected to the impeller inside.

[0013] This utility model's plate-fin water-cooled heat exchanger can be assembled in a drawer-style configuration within the housing between the inlet and outlet air boxes, facilitating assembly and maintenance. The lower end of the inlet air box is connected to the generator's internal cavity via an inlet flange, and the lower end of the outlet air box is also connected to the generator's internal cavity via an outlet flange, ensuring convenient assembly and stable support. The sloping structure on the left side of the inlet air box serves both as a weight reduction feature and as a guide for gas delivery from the generator set. The centrifugal fan impeller is mounted inside the fan housing on the side of the outlet air box. The fan draws hot air from inside the generator, which, after heat exchange in the plate-fin water-cooled heat exchanger, becomes low-temperature air, and then passes through the fan housing again... The air is fed into the generator; there are inspection doors on both sides of the outlet air box, which can be opened to regularly clean dust and check for internal damage; the fan box end cover can be removed, making impeller inspection, maintenance, and installation convenient; the outlet air box has a baffle plate, which blocks the cold water contained in the plate-fin water-cooled heat exchanger and discharges it through the outlet air box water collection pan drain pipe, preventing water leakage and other faults from flowing into the generator, thus increasing product reliability; there are also partitions in the inlet and outlet air boxes and the air supply box, which completely separate the airflow entering and leaving the impellers of the two centrifugal fans, avoiding mutual interference, reducing air resistance, and improving the cooling effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Top view.

[0016] In the diagram: 1. Box body; 2. Drawer-type plate-fin water-cooled heat exchanger; 3. Air inlet box; 4. Air inlet flange; 5. Air inlet; 6. Air inlet pressure sensor; 7. Air outlet box; 8. Air outlet pressure sensor; 9. Air outlet baffle; 10. Water baffle; 11. Water collection tray; 12. Drain pipe; 13. Fan box; 14. Fan box end cover; 15. Motor support frame; 16. Motor; 17. Impeller; 18. Air outlet flange; 19. Air outlet; 20. Detailed Implementation

[0017] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0018] Figure 1 , 2As shown: A wind turbine nacelle air-water cooler includes a housing 1, a drawer-type plate-fin water-cooled heat exchanger 2, an air inlet box 3, an air inlet flange 4, an air inlet baffle 6, an air inlet pressure sensor 7, an air outlet box 8, an air outlet pressure sensor 9, an air outlet baffle 10, a baffle plate 11, a water collection tray 12, a drain pipe 13, a fan box 14, a fan box end cover 15, a motor support frame 16, a motor 17, an impeller 18, and an air outlet flange 19. The air inlet box 3, the housing 1, the air outlet box 8, and the fan box 14 are connected sequentially from left to right. The lower end of the air inlet box 3 is connected to an air inlet flange 4 with an air inlet 5. The air inlet flange 4 is bolted and installed at one end of the generator, connecting to the generator's internal cavity. The left side of the air inlet box 3 is designed with a rightward inward tilt. Multiple mounting holes are opened on the front face of the housing 1, and drawer-type plate-fin water-cooled heat exchangers 2 are inserted into these holes via guide rails. The right side of the air outlet box 8 is connected to two symmetrically positioned fan boxes 14. The fan box has a U-shaped cross-section, and the lower end of the fan box is connected to an air outlet flange 19 with an air outlet 20. The air outlet flange 19 is bolted and installed at the other end of the generator. The fan box 14 is enclosed on the right side by a fan box end cover 15. The fan box end cover 15 supports the motor 17 externally via a motor support frame 16. The output shaft of the motor 17 passes through the fan box end cover 15 and connects to the impeller 18 placed inside the fan box. The inlet and outlet boxes are respectively provided with an inlet baffle 6 and an outlet baffle 10 that separate the front and rear cavities of the inlet and outlet boxes in the left and right directions. The front and rear positions of the inlet baffle 6 and the outlet baffle 10 correspond to the two impellers. The outlet box 8 is provided with a baffle plate 11. The baffle plate is not lower than the center of the impeller. A water collection plate 12 is provided on the left side of the baffle plate. The water collection plate is connected to the outlet box via a drain pipe 13.

[0019] In this embodiment, the center of the impeller and the center of the upper arc of the inverted U-shaped section of the fan box are on the same horizontal axis.

[0020] In this embodiment, air pressure sensors 7 and 9 are respectively installed in the air inlet box and the air outlet box.

[0021] In this embodiment, inspection doors are provided on the front and / or rear end faces of the air outlet box.

Claims

1. A wind turbine nacelle air-water cooler, comprising a housing and a centrifugal fan, characterized in that: The left side of the housing is connected to an air inlet box, with an air inlet flange connected to the lower end of the air inlet box. The air inlet flange is bolted to one end of the generator and connects to the generator's internal cavity. The left side of the air inlet box is designed to slope inward to the right. Multiple mounting holes are provided on the front surface of the housing, through which drawer-type plate-fin water-cooled heat exchangers are inserted via guide rails. The right side of the housing is connected to an air outlet box, with two symmetrically arranged fan boxes connected to the right side of the air outlet box. The fan boxes have a U-shaped cross-section, with an air outlet flange connected to the lower end of each fan box. The air outlet flange is bolted to the lower end of the fan box. A bolt is installed at the other end of the generator and connects to the generator's internal cavity. The impeller of the centrifugal fan is installed inside the fan box. The motor of the centrifugal fan is installed on the right side of the fan box, and the output shaft of the centrifugal fan motor extends into the fan box and connects to the impeller. The air inlet box and air outlet box are provided with a middle partition plate that separates the front and rear cavities of the air inlet box and air outlet box in the left and right direction. The middle partition plate is located between the two impellers. The air outlet box is provided with a baffle plate, which is not lower than the center of the impeller. A water collection plate is provided on the left side of the baffle plate, and the water collection plate is connected to the air outlet box through a drain pipe.

2. The wind turbine nacelle air-water cooler according to claim 1, characterized in that: The center of the impeller and the center of the upper arc of the inverted U-shaped section of the fan box are on the same horizontal axis.

3. A wind turbine nacelle air-water cooler according to claim 1, characterized in that: The lower end of the motor is supported on the right side of the fan box by a support frame.

4. A wind turbine nacelle air-water cooler according to claim 1, characterized in that: The upper part of the box is equipped with lifting lugs.

5. A wind turbine nacelle air-water cooler according to claim 1, characterized in that: Both the air inlet box and the air outlet box are equipped with wind pressure sensors.

6. A wind turbine nacelle air-water cooler according to claim 1, characterized in that: The fan box is covered on the right side by the fan box end cover, and the motor output shaft passes through the fan box end cover and is connected to the impeller inside.

7. A wind turbine nacelle air-water cooler according to claim 1, characterized in that: Inspection doors are provided on the front and / or rear end faces of the air outlet box.

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