10-16MW doubly-fed wind generator air-water cooler

Abstract

The utility model discloses a 10-16MW doubly-fed wind generator air-water cooler which comprises a cooler shell, the interior of the cooler shell is divided into a left cavity, a middle cavity and a right cavity through two heat exchange cavities, the left cavity, the middle cavity and the right cavity are communicated in sequence, and an air inlet communicated with a generator cavity is formed in the lower portion of the middle cavity. A left air outlet and a right air outlet which are communicated with the generator cavity are formed below the left cavity and the right cavity respectively, a left fan and a right fan which are oppositely arranged are arranged in the left cavity and the right cavity, the left fan and the right fan are externally connected with a left motor and a right motor on the outer side of the cooler shell respectively, a heat exchange core is arranged in the heat exchange cavity, and a water outlet and a water inlet are formed in the upper end and the lower end of the heat exchange core respectively. Water inlets of the two heat exchange core bodies are externally connected with a water inlet main pipe, and water outlets of the two heat exchange core bodies are externally connected with a water outlet main pipe. The cooler is simple in structure, the operation condition of the cooler is monitored in real time through the temperature sensor and the alarm, any heat exchange core can be independently replaced when being damaged, and the cooler is convenient and practical.

Description

Technical Field

[0001] This utility model relates to the field of air-water cooler technology, and in particular to an air-water cooler for a 10-16MW doubly fed wind turbine generator. Background Technology

[0002] With the continuous development of the wind power cooling market and the increasing competition among wind power companies, the successful development of 10-16MW doubly-fed wind turbines provides strong support for future expansion into the wind power market and is of great significance for the mass production of ultra-large wind power products in the future. Currently, traditional air-water coolers for wind turbines have poor cooling performance and lack the ability to monitor the cooling system. Once a cooler malfunctions or is damaged, it is either impossible to replace or the replacement process is cumbersome, affecting the operation of the wind turbine. Summary of the Invention

[0003] To address the existing problems, this utility model provides a 10-16MW doubly-fed wind turbine air-water cooler that offers good cooling performance, real-time monitoring capabilities, and easy replacement.

[0004] To achieve the above objectives, this utility model provides the following solution: a 10-16MW doubly-fed wind turbine air-water cooler, comprising a cooler shell, characterized in that the cooler shell is divided into a left chamber, a middle chamber, and a right chamber that are connected sequentially by two heat exchange chambers. An air inlet communicating with the generator chamber is provided below the middle chamber. Left and right air outlets communicating with the generator chamber are respectively provided below the left and right chambers. Left and right fans are respectively arranged opposite to each other in the left and right chambers, and the left and right fans are respectively connected to left and right motors on the outside of the cooler shell. A heat exchange core is provided within the heat exchange chamber, and an inlet and outlet water outlet are respectively provided at the upper and lower ends of the heat exchange core. The inlets of the two heat exchange cores are connected to a main water inlet pipe, and the outlets of the two heat exchange cores are connected to a main water outlet pipe.

[0005] Furthermore, the heat exchange chamber is a chamber formed by the recess of the cooler shell that communicates with the left chamber, the middle chamber and the right chamber. The heat exchange core is inserted into the heat exchange chamber and bolted to the cooler shell through the fixing part.

[0006] Furthermore, an exhaust valve is provided at the highest point of the heat exchange core.

[0007] Furthermore, a water collection tray is provided between the bottom of the cooler shell and the two heat exchange chambers, and a water leakage alarm float is provided in each water collection tray.

[0008] Furthermore, temperature sensors are installed at the water inlet, water outlet, left and right air outlets, and air inlet.

[0009] Furthermore, the heat exchange core is a plate-fin heat exchanger.

[0010] The number of left and right fans is two each.

[0011] Furthermore, each of the aforementioned water collection trays is equipped with two leakage alarm floats.

[0012] The beneficial effects of this utility model are as follows: hot air from the generator chamber is drawn into the central chamber by left and right fans. The two heat exchange cores circulate water through the inlet and outlet water pipes, exchanging heat generated by the generator. The heat exchange capacity is strong. The cooled air returns to the generator chamber through the left and right air outlets, further cooling the generator. The cooling effect is good. Temperature sensors are installed at the water inlet, water outlet, left and right air outlets, and air inlet to monitor the cooling system in real time, ensuring the continuous and stable operation of the cooler. An alarm device is also installed to prevent damage and leakage of the heat exchange cores, improving the safety of the cooler. In addition, if the heat exchange core is damaged, it can be replaced simply by unscrewing the nuts, making the operation convenient. Attached Figure Description

[0013] Figure 1 A 3D view of an air-water cooler;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model.

[0015] Reference numerals: 1. Cooler housing; 2. Heat exchange chamber; 3. Left chamber; 4. Middle chamber; 5. Right chamber; 6. Generator chamber; 7. Right fan; 8. Left motor; 9. Right motor; 10. Heat exchange core; 11. Water outlet; 12. Water inlet; 13. Water outlet main pipe; 14. Water inlet main pipe; 15. Fixing part; 16. Exhaust valve; 17. Water collection pan; 18. Leakage alarm float; 19. Temperature sensor; 20. Air inlet; 21. Left air outlet; 22. Right air outlet. Detailed Implementation

[0016] The present invention will be further described with reference to the accompanying drawings.

[0017] refer to Figure 1 , Figure 2A 10-16MW doubly-fed wind turbine air-water cooler includes a cooler housing 1. A generator housing is bolted to the bottom of the cooler housing 1. The generator housing is divided into a left ventilation chamber, a generator chamber 6, and a right ventilation chamber by a partition. The front wall of the cooler housing 1 is recessed to form two symmetrically arranged heat exchange chambers 2. The cooler housing 1 is divided into a left chamber 3, a middle chamber 4, and a right chamber 5 by the two heat exchange chambers 2. An air inlet communicating with the generator chamber 6 is opened at the bottom of the middle chamber 4. A left air outlet 21 communicating with the generator chamber 6 is opened at the bottom of the left chamber 3 through the left ventilation chamber. A right air outlet 21 communicating with the generator chamber 6 is opened at the bottom of the right chamber 5 through the right ventilation chamber. The right air outlet 22 connects the air chamber to the generator chamber 6. The left chamber 3 and the right chamber 5 are respectively equipped with two pairs of opposing left fans and right fans 7. The left fans and right fans 7 are respectively connected to the left motor 8 and right motor 9 on the outside of the cooler shell 1. The two heat exchange cores 10 are respectively inserted into the two heat exchange chambers 2 and are bolted to the cooler shell 1 through the fixing part 15 on the heat exchange core 10, which facilitates the disassembly and replacement of the heat exchange cores 10. The upper and lower ends of the two heat exchange cores 10 are respectively provided with water outlets 11 and water inlets 12. The water inlets 12 of the two heat exchange cores 10 are connected to the water inlet main pipe 14, and the water outlets 11 of the two heat exchange cores 10 are connected to the water outlet main pipe 13.

[0018] This invention assembles the cooler housing 1 and the generator housing. Hot air from the generator chamber 6 is drawn into the central chamber 4 of the cooler housing 1 through the air inlet 20 by left and right fans. There, it exchanges heat with the heat exchange cores 10. The two heat exchange cores 10 circulate water through the inlet manifold 14 and outlet manifold 13, with cold water entering and hot water exiting, thus cooling the hot air in the generator chamber. The two heat exchange cores 10 significantly improve heat exchange efficiency and provide excellent heat exchange effect. The cooled air enters the left and right ventilation chambers of the generator housing through the left outlet 21 and right outlet 22, respectively, and finally enters the generator chamber 6, thereby cooling the generator.

[0019] This invention features an exhaust valve 16 at the highest point of the heat exchange core 10. When water enters the heat exchange core 10, the air inside the system is discharged through the exhaust valve 16, resulting in more thorough heat exchange and better performance.

[0020] This utility model has a water collection pan 17 installed at the bottom of the cooler shell and between the two heat exchange chambers. Each of the two water collection pans 17 has two normally closed leakage alarm floats 18. When the heat exchange core 10 leaks, the water level in the water collection pan 17 rises, the leakage alarm floats are lifted, the signal is disconnected, and an abnormal alarm is triggered, reminding the staff to stop the machine in time. Each water collection pan 17 is equipped with two leakage alarms to prevent the alarms from being damaged and unable to detect the leakage in time.

[0021] In addition, to further monitor the cooling effect of the cooler, temperature sensors are installed at the inlet 12, outlet 11, left and right air outlets and inlet 20 to monitor the inlet temperature, the two outlet temperatures, the inlet water temperature and the outlet water temperature of the cooler, ensuring the continuous and stable operation of the cooler.

[0022] By monitoring the cooler system in real time, when the cooling core 10 leaks, since the heat exchange core 10 is inserted into the two heat exchange chambers 2 and is bolted to the cooler housing 1 through the fixing part 15 on the heat exchange core 10, when the heat exchange core 10 is damaged, the damaged heat exchange core 10 can be replaced by removing the bolts. The operation is simple and improves the practicality of the cooling system.

[0023] The heat exchange core adopts a high-efficiency plate-fin heat exchanger. Compared with other tube heat exchangers, the heat exchange efficiency of the plate-fin heat exchanger is increased by nearly 15% for the same volume. The plate-fin type has obvious advantages of small size and high cost.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A 10-16MW doubly-fed wind turbine air-water cooler, comprising a cooler shell, characterized in that, The cooler housing is divided into a left chamber, a middle chamber, and a right chamber by two heat exchange chambers. The middle chamber has an air inlet connected to the generator chamber at its lower part. The left and right chambers have left and right air outlets connected to the generator chamber at their lower parts, respectively. The left and right chambers have left and right fans arranged opposite each other. The left and right fans are connected to left and right motors on the outside of the cooler housing, respectively. The heat exchange chambers are equipped with heat exchange cores. The upper and lower ends of the heat exchange cores are respectively equipped with inlet and outlet water ports. The inlets of the two heat exchange cores are connected to the main water inlet pipe, and the outlets of the two heat exchange cores are connected to the main water outlet pipe.

2. The air-water cooler for a 10-16MW doubly-fed wind turbine generator according to claim 1, characterized in that, The heat exchange chamber is a chamber formed by the recess of the cooler shell and communicates with the left chamber, the middle chamber and the right chamber. The heat exchange core is inserted into the heat exchange chamber and connected to the cooler shell by bolts through the fixing part.

3. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 1 or 2, characterized in that, An exhaust valve is installed at the highest point of the heat exchange core.

4. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 1, characterized in that, A water collection tray is provided at the bottom of the cooler shell and between the two heat exchange chambers, and a water leakage alarm float is provided in each water collection tray.

5. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 1, characterized in that, Temperature sensors are installed at the water inlet, water outlet, left and right air outlets, and air inlet.

6. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 1, characterized in that, The heat exchange core is a plate-fin heat exchanger.

7. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 1, characterized in that, There are two fans on both the left and right sides.

8. A 10-16MW doubly-fed wind turbine air-water cooler according to claim 4, characterized in that, Each of the water collection trays is equipped with two leakage alarm floats.

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