Intelligent cooling fan control system of main transformer

Abstract

The utility model discloses an intelligent cooling fan control system of a main transformer, which comprises a water tank (1), a pressurizing box (2), an intelligent control terminal (3) and a plurality of spraying units, a water outlet of the water tank (1) is connected with the pressurizing box (2), the other end of the pressurizing box (2) is connected with the plurality of spraying units, the intelligent control terminal (3) is in communication connection with the plurality of spraying units, and the intelligent control terminal (3) is in communication connection with the plurality of spraying units. And the plurality of spraying units are arranged below cooling fins of the main transformer. According to the utility model, the automatic start and stop can be realized, and the fan can be automatically started and whether to automatically start spraying can be realized according to the on-site temperature condition. And the system automatically realizes single opening of the fan and single opening of spraying or simultaneous starting of the fan and spraying according to the temperature condition. And meanwhile, a remote operation function can be realized through the system, and field hardware can be monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer cooling, in particular to an intelligent cooling fan control system for a main transformer. Background Art

[0002] Transformers play a role in increasing voltage and transmitting electricity over long distances in the power system, and they play an important role in national economic production and people's lives. When the transformer is in operation, especially after working for a long time, it will generate a lot of heat (damaging the line), accelerate insulation aging, burn the coil, damage the transformer, and even cause production accidents in serious cases. Therefore, in order to ensure that the heat generated by the transformer during operation does not affect the normal operation of the transformer, it is necessary to add a cooling system to the transformer to ensure the operating temperature of the transformer.

[0003] At present, the commonly used cooling methods for power transformers on the market are generally divided into: oil-immersed self-cooling, forced oil circulation, water cooling, and oil-immersed air cooling. The oil-immersed self-cooling method uses the natural convection of oil to bring heat to the oil tank wall and the heat pipe, and then relies on the convection conduction of air to dissipate the heat. It does not have special cooling equipment. The characteristic of the self-cooling method is that there is no need to add external refrigeration equipment, relying on the external ambient temperature and natural wind to form convection exchange heat, but the self-cooling method cannot meet the cooling requirements of extremely high temperature weather and long-term full-load operation. Various types of faults are very likely to occur when carrying at full load in extremely high temperature weather. Forced oil circulation The forced oil circulation cooling method is divided into two types: forced oil air cooling and forced oil water cooling. It uses an oil pump to pump the oil in the transformer into the oil cooler and then returns it to the oil tank. The oil cooler is made into a special shape that is easy to dissipate heat, and uses a fan to blow air or circulating water as a cooling medium to take away the heat. If this method increases the oil circulation speed by 3 times compared to natural convection, the transformer capacity can be increased by 30%. The entire project investment is relatively large. The water cooler and its related accessories such as oil pump, oil flow meter, water flow meter, leakage meter, pressure gauge, etc. are all imported parts. The cost is high, and the spare parts have a long stocking period; the maintenance workload of the whole water system is relatively large. A large number of pumps, valves, and pipelines in the water system have leakage risks, and a large number of accessories need to be monitored on site, which increases the difficulty of control. The water cooling method uses spraying to cool the transformer on site. Water spraying can achieve a certain cooling effect, but manual spraying cannot accurately control the spray volume. Start and stop require manual on-site operation, and the site needs staff management at any time. Relying entirely on the work experience of the staff to control the size of the spray, there are life safety hazards. The oil-immersed air-cooled type is based on the oil-immersed self-cooling type, and a fan is installed on the oil tank wall or heat sink, or an external blower is used to help cool. The cooling is not obvious, and the staff has to use water mist spray at critical moments, and it cannot be centrally and accurately managed uniformly. There are also safety hazards to the staff themselves. Utility Model Content

[0004] The utility model provides a main transformer intelligent cooling fan control system, which solves the technical problems existing in the prior art.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A main transformer intelligent cooling fan control system comprises a water tank, a booster box, an intelligent control terminal and a plurality of spray units, wherein the water outlet of the water tank is connected to the booster box, the other end of the booster box is connected to the plurality of spray units, the intelligent control terminal is communicatively connected to the plurality of spray units, and the plurality of spray units are arranged below the heat sink of the main transformer.

[0007] Furthermore, the booster box includes a filter, a water softener and a booster pump. The filter is arranged at the front end of the booster box, the filter is connected to the water softener, and the other end of the water softener is connected to the booster pump.

[0008] Furthermore, a solenoid valve is provided between the booster box and the spray unit, and the solenoid valve is connected to the intelligent control terminal.

[0009] Furthermore, the spray unit includes a spray fan and a plurality of water mist nozzles arranged above the spray fan.

[0010] Furthermore, the spray fan is connected to the intelligent control terminal, the plurality of water mist nozzles are arranged on a spray pipe, a water inlet is arranged on the spray pipe, and the water inlet is connected to the booster box.

[0011] Furthermore, a temperature sensor is provided on the heat sink of the main transformer, and the temperature sensor is connected to the intelligent control terminal, and the intelligent control terminal also includes a remote communication module.

[0012] Based on the above technical solution, the following technical effects can be produced:

[0013] The utility model provides a main transformer intelligent cooling fan control system that can realize automatic start and stop. The intelligent control terminal can realize the automatic start of the spray fan and whether to automatically start the spray according to the on-site temperature conditions. The system can automatically start the spray fan and the spray alone or start the spray at the same time according to the temperature conditions. At the same time, the system can also realize remote operation functions and monitor the on-site hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] In the figure: 1-water tank, 2-boosting tank, 3-intelligent control terminal, 4-filter, 5-water softener, 6-boosting pump, 7-solenoid valve, 8-spray fan, 9-water mist nozzle. DETAILED DESCRIPTION

[0016] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, a main transformer intelligent cooling fan control system includes a water tank 1, a booster tank 2, an intelligent control terminal 3 and a plurality of spray units, the water outlet of the water tank 1 is connected to the booster tank 2, the other end of the booster tank 2 is connected to a plurality of spray units, the intelligent control terminal 3 is communicatively connected to the plurality of spray units, and the plurality of spray units are arranged below the heat sink of the main transformer.

[0021] An optional or preferred solution is that the booster tank 2 includes a filter 4, a water softener 5 and a booster pump 6, wherein the filter 4 is arranged at the front end of the booster tank 2, the filter 4 is connected to the water softener 5, and the other end of the water softener 5 is connected to the booster pump 6.

[0022] As an optional or preferred solution, a solenoid valve 7 is provided between the booster box 2 and the spray unit, and the solenoid valve 7 is connected to the intelligent control terminal 3 .

[0023] Optionally or preferably, the spray unit includes a spray fan 8 and a plurality of water mist nozzles 9 arranged above the spray fan 8.

[0024] As an optional or preferred solution, the spray fan 8 is connected to the intelligent control terminal 3 , a plurality of the water mist nozzles are arranged on a nozzle, a water inlet is arranged on the nozzle, and the water inlet is connected to the booster box 2 .

[0025] As an optional or preferred solution, a temperature sensor is provided on the heat sink of the main transformer, and the temperature sensor is connected to the intelligent control terminal 3, and the intelligent control terminal 3 also includes a remote communication module.

[0026] The working principle of the main transformer intelligent cooling fan control system provided by the utility model is as follows:

[0027] The water in the water tank 1 comes from groundwater or tap water, which is filtered by the filter 4 in the booster tank 2 and then softened by the water softener 5 before being sent to the booster pump 6. The water is then sent to the spray fan 8 and the water mist nozzle 9 through the water pipe to generate water mist, which is blown onto the transformer heat sink by the wind of the spray fan 8. The wind will make the water mist spread higher and have greater contact with the surface of the transformer heat sink, absorbing more heat, thereby achieving the purpose of cooling. The intelligent control terminal 3 can realize the start and stop of the spray fan 8 and whether to automatically start the spray according to the temperature value monitored by the on-site temperature sensor. Under different temperature conditions, it can also realize the single opening of the spray fan 8 and the single opening of the spray, or the simultaneous start of the spray fan 8 and the spray. At the same time, the 4G or 485 communication of the intelligent control terminal is connected to the background to realize the remote operation function.

[0028] The utility model is described in detail above with reference to the accompanying drawings and embodiments, but the utility model is not limited to the above embodiments, and various changes can be made within the scope of ordinary technicians in the field without departing from the purpose of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope of protection of the utility model.

Claims

1. A main transformer intelligent cooling fan control system, comprising a water tank (1), a booster tank (2), an intelligent control terminal (3) and a plurality of spray units, characterized in that: The water outlet of the water tank (1) is connected to the booster tank (2), the other end of the booster tank (2) is connected to a plurality of spray units, the intelligent control terminal (3) is communicatively connected to the plurality of spray units, and the plurality of spray units are arranged below the heat sink of the main transformer.

2. The main transformer intelligent cooling fan control system according to claim 1 is characterized in that: The booster box (2) comprises a filter (4), a water softener (5) and a booster pump (6); the filter (4) is arranged at the front end of the booster box (2); the filter (4) is connected to the water softener (5); and the other end of the water softener (5) is connected to the booster pump (6).

3. The main transformer intelligent cooling fan control system according to claim 1 is characterized in that: A solenoid valve (7) is provided between the booster box (2) and the spray unit, and the solenoid valve (7) is connected to the intelligent control terminal (3).

4. The main transformer intelligent cooling fan control system according to claim 1 is characterized in that: The spray unit comprises a spray fan (8) and a plurality of water mist nozzles (9) arranged above the spray fan (8).

5. The main transformer intelligent cooling fan control system according to claim 4 is characterized in that: The spray fan (8) is connected to the intelligent control terminal (3), and the plurality of water mist nozzles are arranged on a spray pipe. The spray pipe is provided with a water inlet, and the water inlet is connected to the booster box (2).

6. The main transformer intelligent cooling fan control system according to claim 1 is characterized in that: A temperature sensor is provided on the main transformer heat sink, and the temperature sensor is connected to the intelligent control terminal (3). The intelligent control terminal (3) also includes a remote communication module.

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