Built-in box transformer unit of wind power concrete tower

Abstract

The utility model relates to the field of wind power equipment, and discloses a wind power concrete tower tube built-in box transformer unit which comprises a fan tower tube, a box transformer component and an automatic detection fire extinguishing device are arranged in the fan tower tube, and an automatic smoke exhaust device is further arranged in the fan tower tube. The automatic detection fire extinguishing device comprises a control system, the control system is electrically connected with a plurality of detection ends and a plurality of fire extinguishing ends, the detection ends and the fire extinguishing ends are arranged around the box transformer substation assembly, and the control system is used for receiving fire fighting signals of the detection ends and controlling opening and closing of the fire extinguishing ends; the automatic smoke exhaust device comprises an air exhaust assembly electrically connected to the control system, the air exhaust assembly is arranged outside the fan tower barrel, the fan tower barrel is provided with a smoke exhaust channel and a smoke exhaust port, the smoke exhaust channel and the smoke exhaust port are communicated with the interior of the fan tower barrel, and the smoke exhaust port is communicated with the air exhaust assembly. The purpose of rapidly extinguishing fire is achieved, and damage to electrical equipment is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of wind power equipment, in particular to a wind power concrete tower built-in box transformer unit. Background Art

[0002] The wind power concrete tower built-in box transformer unit is a key component of the wind power generation system. It is mainly used to convert, control and protect the electric energy generated by the wind turbine to ensure that the electric energy can be effectively transmitted to the power grid. The wind power concrete tower built-in box transformer unit usually includes key components such as transformer, rectifier, filter, inverter and control system. Among them, the transformer is responsible for converting the low-voltage electric energy generated by the wind turbine into high-voltage electric energy to meet the requirements of the power grid.

[0003] Wind turbine box-type transformer equipment is widely distributed and wind turbine towers are installed at heights of more than tens of meters. When a fire occurs, it is difficult to monitor and extinguish the fire, which leads to safety accidents and causes immeasurable losses. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to improve the fire safety of the built-in unit of the wind power concrete tower.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The wind power concrete tower has a built-in box transformer unit, including a wind turbine tower, in which a box transformer assembly, an automatic fire detection and extinguishing device, and an automatic smoke exhaust device are arranged;

[0007] The automatic detection and fire extinguishing device includes a control system, the control system is electrically connected to a plurality of detection terminals and a plurality of fire extinguishing terminals, the detection terminals and the fire extinguishing terminals are arranged around the box-type transformer assembly, and the control system is used to receive fire signals from the detection terminals and control the opening and closing of the fire extinguishing terminals;

[0008] The above-mentioned automatic smoke exhaust device includes an exhaust component electrically connected to the above-mentioned control system, the above-mentioned exhaust component is arranged outside the above-mentioned fan tower, the above-mentioned fan tower is provided with a smoke exhaust passage and a smoke exhaust port, the above-mentioned smoke exhaust passage and the above-mentioned smoke exhaust port are connected to the interior of the above-mentioned fan tower, and the above-mentioned smoke exhaust port is connected to the above-mentioned exhaust component.

[0009] Furthermore, the fire extinguishing end includes a temperature-sensing automatic fire extinguisher and an electromagnetic-driven fire extinguisher, wherein the electromagnetic-driven fire extinguisher is electrically connected to the control system, and the fire extinguishing medium sprayed by the temperature-sensing automatic fire extinguisher or the electromagnetic-driven fire extinguisher is aerosol or perfluorohexanone.

[0010] Furthermore, the detection end includes a smoke detector, a temperature and humidity sensor, and a fire detector, and the smoke detector, the temperature and humidity sensor, and the fire detector are all electrically connected to the control system.

[0011] Furthermore, the fan tower is provided with a smoke exhaust fire damper, the fan tower is provided with an outlet, and the distance between the smoke exhaust fire damper and the outlet is no more than 100 mm.

[0012] Furthermore, a fire-resistant ceiling is provided at the upper end of the above-mentioned fan tower, and the distance between the above-mentioned smoke exhaust port and the above-mentioned fire-resistant ceiling is not greater than 300 mm.

[0013] Furthermore, the above-mentioned fire-resistant ceiling is a fire-resistant partition with a fire resistance limit of not less than 1h.

[0014] Furthermore, the above-mentioned box-type transformer assembly includes a dry-type transformer.

[0015] The beneficial effects of the utility model are:

[0016] The detection end monitors and senses whether a fire occurs in the fan tower, and sends the monitoring and sensing information to the control system. The control system controls the fire extinguishing end and the exhaust component respectively according to whether a fire occurs, to ensure that when a fire is detected, the fire extinguishing end can quickly initiate fire extinguishing measures, and after the exhaust component is activated, the high-temperature smoke in the fan tower is discharged through the smoke exhaust channel and the smoke exhaust port, so as to quickly extinguish the fire and minimize damage to electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Marked in the figure are, 1-fan tower, 2-box transformer assembly, 3-detection end, 4-fire extinguishing end, 5-smoke exhaust channel, 6-smoke exhaust port, 7-smoke exhaust fire damper, 8-fire-resistant ceiling, 9-exit. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] according to Figure 1As shown, the embodiment of the present application proposes a wind power concrete tower built-in box transformer unit, including a wind turbine tower 1, wherein the wind turbine tower 1 is provided with a box transformer assembly 2 and an automatic detection and fire extinguishing device, and the wind turbine tower 1 is also provided with an automatic smoke exhaust device; the automatic detection and fire extinguishing device includes a control system, the control system is electrically connected to a plurality of detection terminals 3 and a plurality of fire extinguishing terminals 4, the detection terminals 3 and the fire extinguishing terminals 4 are both arranged around the box transformer assembly 2, and the control system is used to receive the fire signal of the detection terminal 3 and control the opening and closing of the fire extinguishing terminal 4; the automatic smoke exhaust device includes an exhaust component electrically connected to the control system, the exhaust component is arranged on the outside of the wind turbine tower 1, the wind turbine tower 1 is provided with a smoke exhaust channel 5 and a smoke exhaust port 6, the smoke exhaust channel 5 and the smoke exhaust port 6 are connected to the inside of the wind turbine tower 1, and the smoke exhaust port 6 is connected to the exhaust component.

[0021] First of all, it should be stated that the detection terminal 3 monitors and senses whether a fire occurs in the fan tower 1, and sends the monitoring and sensing information to the control system. The control system controls the fire extinguishing terminal 4 and the exhaust component respectively according to whether a fire occurs, to ensure that when a fire is detected, the fire extinguishing terminal 4 can quickly initiate fire extinguishing measures, and after the exhaust component is activated, the high-temperature smoke in the fan tower 1 is discharged to the outside through the smoke exhaust channel 5 and the smoke exhaust port 6, so as to achieve rapid fire extinguishing and minimize damage to electrical equipment.

[0022] Moreover, the box-type transformer unit includes a dry-type transformer. A dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil. The dry-type transformer has good fire-proof performance as a whole, which further reduces the degree of damage that the fire may cause to the equipment in the wind turbine tower 1.

[0023] Specifically, the above-mentioned control system includes a cloud transmission system and an intelligent terminal. The cloud transmission system connects the signal control system of the detection end 3 and transmits it to the intelligent terminal. The intelligent terminal can include a central control device and a mobile communication device. Through remote information transmission, the information on whether a fire has occurred is transmitted to the intelligent terminal, and corresponding instructions are given to the control device of the fire extinguishing end 4 and the automatic smoke exhaust device through the intelligent terminal.

[0024] The above-mentioned detection terminal 3 is arranged in the fan tower 1 to monitor each area in the fan tower 1. The detection terminal 3 is mainly an existing fire sensing device with smoke and flame recognition technology. The above-mentioned fire extinguishing terminal 4 includes a temperature-sensing automatic fire extinguisher and an electromagnetic-driven fire extinguisher, wherein the electromagnetic-driven fire extinguisher is electrically connected to the above-mentioned control system, and the fire extinguishing medium sprayed by the temperature-sensing automatic fire extinguisher and the electromagnetic-driven fire extinguisher is an aerosol. That is to say, the fire extinguishing terminal 4 has two triggering modes. The temperature-sensing automatic fire extinguisher automatically triggers fire extinguishing after reaching a preset temperature after sensing the temperature, and the electromagnetic-driven fire extinguisher starts to trigger the fire extinguishing process under the control of the control system. The two fire extinguishers cooperate with each other to ensure accurate and rapid fire extinguishing action. Specifically, when a dangerous situation occurs, the temperature-sensing automatic fire extinguisher and the electromagnetic-driven fire extinguisher will evenly spray the fire extinguishing medium in all directions inside the box-type transformer cabinet. The spraying medium of the temperature-sensing automatic fire extinguisher and the electromagnetic-driven fire extinguisher is aerosol or perfluorohexanone. The triggering temperature of the temperature-sensing automatic fire extinguisher is 80-85°C. The electromagnetic-driven fire extinguisher is triggered by a signal from the control system. The two fire extinguishing methods complement each other to prevent the situation where one of the links is abnormal and the fire cannot be extinguished in time.

[0025] In addition, in order to further ensure safety, a fire detection tube type automatic fire extinguishing system is required to be installed in the oil-containing and fire-prone parts of the wind turbine tower 1, including the gear box, hydraulic brake, brake disc, etc.; two portable dry powder fire extinguishers are installed in the tower and at the bottom of the tower; when working inside the wind turbine, maintain internal hygiene, and it is prohibited to leave debris inside the wind turbine, especially flammable materials such as oil, cotton, etc. The gear oil and hydraulic oil leaked inside the tower must be cleaned up in time to reduce fire hazards; regularly check the connection quality of electrical appliances, cables, and power main circuit cable terminals to prevent electrical fires caused by false connections in the power circuit; prepare a wind turbine fire emergency plan. Once a wind turbine catches fire, the fire signal should be transmitted remotely to the fire control room, and the wind farm operating personnel will quickly cut off the power supply of the collector line to prevent short-circuit accidents in the power grid and send people to control the scene. At the same time, notify the local fire brigade to control the scope of the fire and extinguish the fire.

[0026] Furthermore, the detection end 3 includes a smoke detector, a temperature and humidity sensor, and a fire detector, and the smoke detector, the temperature and humidity sensor, and the fire detector are all electrically connected to the control system. Through different types of detectors and sensors, the fire condition can be comprehensively judged and accurately sent to the control system, thereby ensuring the accuracy of fire sensing and monitoring.

[0027] For the automatic smoke exhaust device, specifically, after the detection end 3 detects a fire, the fire information is sent to the control system, and the air system starts the above-mentioned exhaust component. The exhaust component is generally an existing exhaust fan. The high-temperature smoke in the fan tower 1 can be quickly discharged through the exhaust fan to reduce the fire.

[0028] In order to ensure the working effect of the entire mechanical smoke exhaust structure, the above-mentioned fan tower 1 is provided with a smoke exhaust fire damper 7, and the above-mentioned fan tower 1 is provided with an outlet 9. The distance between the above-mentioned smoke exhaust fire damper 7 and the above-mentioned outlet 9 is not more than 100mm. The above-mentioned smoke exhaust fire damper 7 is installed at the position of the smoke exhaust channel 5. It is usually in an open state. When a fire occurs, the smoke exhaust is opened. When the smoke temperature in the smoke exhaust pipe reaches 280 degrees, it is closed, and the smoke leakage and fire resistance integrity requirements are met within a certain period of time, so as to play a role in isolating smoke and preventing fire, and prevent flames and smoke from leaking out.

[0029] Under normal conditions, the smoke exhaust fire damper 7 ensures that the smoke exhaust passage 5 is connected to the outlet 9 and the smoke exhaust port 6, ensuring the best ventilation state and achieving air cooling. When the smoke exhaust is opened in the event of a fire, the smoke exhaust fire damper 7 automatically closes and cuts off the outlet 9 and the smoke exhaust port 6, ensuring that the entire fan tower 1 can only discharge the smoke and air in the fan tower 1 to the outside through the negative pressure of the external exhaust component, thereby reducing the fire while exhausting the smoke and reducing the degree of damage to the equipment.

[0030] Moreover, a fire-resistant ceiling 8 is arranged at the upper end of the above-mentioned fan tower 1. The distance between the above-mentioned smoke exhaust port 6 and the above-mentioned fire-resistant ceiling 8 is not more than 300 mm. The above-mentioned fire-resistant ceiling 8 is a fire-resistant partition with a fire resistance limit of not less than 1h, which ensures that after a fire occurs, the flame is blocked by the fire-resistant ceiling 8 to reduce the spread of the fire. The smoke exhaust port 6 is an upper smoke exhaust port 6 close to the fire-resistant partition, which can realize the action of smoke extraction and discharge more efficiently and quickly.

[0031] In summary, the embodiment of the present application proposes a wind power concrete tower built-in box transformer unit, including a wind turbine tower 1, wherein the wind turbine tower 1 is provided with a box transformer assembly 2 and an automatic detection and fire extinguishing device, and the top of the wind turbine tower 1 is provided with an automatic smoke exhaust device; the automatic detection and fire extinguishing device includes a control system, the control system is electrically connected to a plurality of detection terminals 3 and a plurality of fire extinguishing terminals 4, the detection terminals 3 and the fire extinguishing terminals 4 are both arranged around the box transformer assembly 2, the control system is used to receive the fire signal of the detection terminal 3 and control the opening and closing of the fire extinguishing terminal 4; the automatic smoke exhaust device includes an exhaust component electrically connected to the control system, and the exhaust component is provided On the outside of the above-mentioned fan tower 1, the above-mentioned fan tower 1 is provided with a smoke exhaust passage 5 and a smoke exhaust port 6. The above-mentioned smoke exhaust passage 5 and the above-mentioned smoke exhaust port 6 are connected to the inside of the above-mentioned fan tower 1, and the above-mentioned smoke exhaust port 6 is connected to the above-mentioned exhaust assembly. When the intelligent fire extinguishing device installed inside the box transformer detects that a dangerous situation may occur, it will first send an early warning to the intelligent terminal so that the monitoring personnel can respond in time. When a dangerous situation occurs, the fire extinguishing tank and the smoke exhaust system are opened to extinguish the fire and exhaust the smoke to avoid the expansion of the dangerous situation. The aerosol or perfluorohexanone fire extinguishing tank absorbs heat when extinguishing a fire and has insulating properties. It can protect electrical equipment while avoiding damage to the equipment caused by fire.

Claims

1. A wind power concrete tower with a built-in box transformer unit is characterized by: It comprises a fan tower (1), wherein a box transformer assembly (2), an automatic fire detection and extinguishing device, and an automatic smoke exhaust device are arranged in the fan tower (1); The automatic detection and fire extinguishing device comprises a control system, wherein the control system is electrically connected to a plurality of detection terminals (3) and a plurality of fire extinguishing terminals (4), wherein the detection terminals (3) and the fire extinguishing terminals (4) are both arranged around the box-type transformer assembly (2), and the control system is used to receive fire signals from the detection terminals (3) and control the opening and closing of the fire extinguishing terminals (4); The automatic smoke exhaust device comprises an exhaust component electrically connected to the control system, the exhaust component being arranged outside the fan tower (1), the fan tower (1) being provided with a smoke exhaust passage (5) and a smoke exhaust port (6), the smoke exhaust passage (5) and the smoke exhaust port (6) being connected to the interior of the fan tower (1), and the smoke exhaust port (6) being connected to the exhaust component.

2. The wind power concrete tower built-in box transformer unit according to claim 1 is characterized in that: The fire extinguishing end (4) comprises a temperature-sensitive automatic fire extinguisher and an electromagnetically driven fire extinguisher, wherein the electromagnetically driven fire extinguisher is electrically connected to the control system, and the fire extinguishing medium sprayed by the temperature-sensitive automatic fire extinguisher or the electromagnetically driven fire extinguisher is aerosol or perfluorohexanone.

3. The wind power concrete tower built-in box transformer unit according to claim 2 is characterized in that: The detection end (3) comprises a smoke detector, a temperature and humidity sensor and a fire detector, and the smoke detector, the temperature and humidity sensor and the fire detector are all electrically connected to the control system.

4. The wind power concrete tower built-in box transformer unit according to claim 1, characterized in that: The fan tower (1) is provided with a smoke exhaust fire damper (7), the fan tower (1) is provided with an outlet (9), the distance between the smoke exhaust fire damper (7) and the outlet (9) is no more than 100 mm, the smoke exhaust passage (5) is connected to the outlet (9), and the smoke exhaust fire damper (7) is arranged in the smoke exhaust passage (5).

5. The wind power concrete tower built-in box transformer unit according to claim 1, characterized in that: A fire-resistant ceiling (8) is provided at the upper end of the fan tower (1), and the distance between the smoke exhaust port (6) and the fire-resistant ceiling (8) is no more than 300 mm.

6. The wind power concrete tower built-in box transformer unit according to claim 5, characterized in that: The fire-resistant ceiling (8) is a fire-resistant partition with a fire resistance limit of not less than 1 hour.

7. The wind power concrete tower built-in box transformer unit according to claim 1, characterized in that: The box-type transformer assembly (2) comprises a dry-type transformer.

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