Transformer intelligent spray cooling system based on centralized monitoring system

Abstract

The utility model discloses a transformer intelligent spray cooling system based on a centralized monitoring system. The system comprises a spray system, a water supply system and a control system, the spraying system comprises an independent spraying device which faces the transformer body and is used for spraying water to the transformer body for cooling, and an embedded spraying device which is embedded between cooling fins of the transformer and is used for spraying water to the cooling fins of the transformer for cooling; the water supply system comprises a water storage tank, the independent spraying device and the embedded spraying device are communicated with the water storage tank through water supply hoses, and the water supply hoses are connected with a first water pump and a second water pump in parallel. The control system comprises a remote control unit connected with the first water pump and a manual control unit connected with the second water pump.

Description

Technical Field

[0001] The utility model relates to a field, and in particular to an intelligent spray cooling system for transformers based on a centralized monitoring system. Background Art

[0002] The heat dissipation capacity of the transformer is subject to the ambient temperature of the transformer. When the ambient temperature is high, the effect of the transformer exchanging heat with the external environment through the heat sink will be greatly reduced. Even if an extension is installed, the ideal cooling effect cannot be achieved. Therefore, the auxiliary cooling effect by spraying coolant on the transformer is better than external air cooling. However, the current intelligent spray cooling device for transformers basically requires the operation and maintenance personnel to manually start and stop the device on site.

[0003] In the prior art, in order to solve the problem of low degree of automation control of the spray device, a controller is usually used to automatically control the electromagnetic valve according to the signal collected by the temperature sensor. For example, the invention patent with patent number 201710856850.5 discloses an automatic rapid cooling device for power transformers, including a spray device and a control device arranged on both sides of the transformer; the spray device includes a pump, a rapid cooling agent pipeline and a plurality of large-diameter spray heads, and the outlet of the pump is connected to the inlet of the plurality of large-diameter spray heads through the rapid cooling agent pipeline; the control device includes a metal cabinet and a first cooling branch and a second cooling branch with the same structure arranged in the metal cabinet, and a control circuit. The present invention uses a rapid cooling agent whose main components are dry ice and softened water to share background data with the transformer temperature monitoring system. When the temperature exceeds the limit, the cooling is automatically started. The rapid cooling agent is sprayed synchronously and quickly through the large umbrella-diameter spray port surrounding the transformer body through a pressure pump to cover the transformer body. The rapid cooling agent vaporizes quickly when it encounters heat, thereby absorbing the heat on its surface and achieving the purpose of rapid cooling of the transformer body. However, this fully automatic control system has problems such as inconvenient parameter setting, low temperature control accuracy, and lack of delayed start and stop anti-shake function.

[0004] In addition, the current layout of the transformer intelligent spray cooling device is usually just to set up multiple nozzles around the transformer to spray the transformer, and the cooling efficiency is limited. Utility Model Content

[0005] In view of this, the purpose of the utility model is to overcome the defects in the prior art and provide a transformer intelligent spray cooling system based on a centralized monitoring system.

[0006] The utility model discloses a transformer intelligent spray cooling system based on a centralized monitoring system, comprising a spray system, a water supply system and a control system;

[0007] The spray system includes an independent spray device arranged toward the transformer body for spraying water to cool the transformer body and an embedded spray device embedded between the heat sinks of the transformer for spraying water to cool the transformer heat sink;

[0008] A water storage tank of the water supply system, the independent spray device and the embedded spray device are respectively connected to the water storage tank through a water supply hose, and a first water pump and a second water pump are connected in parallel to the water supply hose;

[0009] The control system includes a remote control unit connected to the first water pump and a manual control unit connected to the second water pump.

[0010] Furthermore, the embedded spray device includes a water distribution pipe and several first nozzles arranged between two adjacent heat sinks of the transformer, and the several first nozzles are respectively connected to the water distribution pipe; a first nozzle is provided on the first nozzle, and the first nozzle adopts a double-headed atomizing nozzle, and the two nozzles of the first nozzle are respectively arranged to face the heat sinks on both sides.

[0011] Furthermore, the independent spraying device includes a plurality of second spray pipes arranged around the transformer body, and the second spray pipes are provided with a plurality of second spray heads arranged facing the transformer body.

[0012] Furthermore, the second nozzle is installed on the side of the transformer through two support rods, a mounting seat is installed on the top of the support rod, the nozzle and the mounting seat are rotatably connected, one end of the nozzle is fixedly connected to a connecting rod, and the connecting rod is connected to the output shaft of the motor through a coupling.

[0013] Furthermore, the remote control control unit includes a remote control terminal and a serial communication server, a serial relay and an AC contactor electrically connected in sequence; the remote control terminal is communicatively connected to the serial communication server, and the AC contactor is connected between the power supply and the first water pump; the manual control unit includes a manual switch connected between the power supply and the first water pump.

[0014] Furthermore, the system also includes a camera arranged facing the transformer body for acquiring an image of the transformer body, and the camera is connected to a serial communication server via a data collector.

[0015] Furthermore, a water level sensor connected to the data collector is provided in the water storage tank.

[0016] Furthermore, the first water pump and the second water pump are both centrifugal filtering water pumps.

[0017] The beneficial effects of the utility model are as follows: an embedded spraying device for spraying water to cool the heat sink of the transformer is arranged between the heat sinks of the transformer, and the heat dissipation speed of the heat sink is improved by directly spraying the heat sink; and a remote control unit is arranged to remotely control the spraying system, thereby realizing precise control and real-time adjustment of the transformer temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A structural diagram of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation position of the second nozzle according to an embodiment of the present invention;

[0021] Figure 3 The figure is a working principle diagram of an embodiment of the present invention.

[0022] 1. Transformer body; 11. Heat sink; 2. Water tank; 21. Water level sensor; M1. First water pump; M2. Second water pump; 4. Water supply hose; 41. First solenoid valve; 42. Second solenoid valve; 5. Water distribution pipe; 51. First nozzle; 52. First nozzle; 6. Second nozzle; 61. Second nozzle; 7. Support rod; 71. Mounting seat; 8. Motor. DETAILED DESCRIPTION

[0023] A transformer intelligent spray cooling system based on a centralized monitoring system includes a spray system, a water supply system and a control system; the spray system includes an independent spray device arranged facing a transformer body 1 for spraying water to cool the transformer body 1 and an embedded spray device embedded between heat sinks 11 of the transformer for spraying water to cool the heat sinks 11 of the transformer; a water storage tank 2 of the water supply system, the independent spray device and the embedded spray device are respectively connected to the water storage tank 2 through a water supply hose 4, and a first water pump M1 and a second water pump M2 are connected in parallel to the water supply hose 4; the control system includes a remote control control unit connected to the first water pump M1 and a manual control unit connected to the second water pump M2.

[0024] The utility model provides an embedded spraying device for spraying water to cool the heat sink 11 of the transformer between the heat sinks 11 of the transformer. By directly spraying the heat sink 11, the heat dissipation speed of the heat sink 11 can be improved. By providing a remote control unit, the spraying system can be remotely controlled, and the transformer temperature can be accurately controlled and adjusted in real time.

[0025] According to an embodiment of the present application, the embedded spray device includes a water distribution pipe 5 and a plurality of first spray pipes 51 disposed between two adjacent heat sinks 11 of the transformer, wherein the plurality of first spray pipes 51 are respectively connected to the water distribution pipe 5; a first spray head 52 is disposed on the first spray pipe 51, and the first spray head 52 adopts a double-headed atomizing nozzle, and the two nozzles of the first spray head 52 are respectively disposed toward the heat sinks 11 on both sides. In this embodiment, the first spray pipe 51 is disposed between two adjacent heat sinks 11 of the transformer, and then the heat is directly sprayed through the double-headed atomizing nozzle, thereby improving the efficiency of the heat sink 11 and achieving the purpose of improving the cooling efficiency of the transformer.

[0026] According to one embodiment of the present application, the independent spray device includes a plurality of second spray pipes 6 arranged around the transformer body 1, and the second spray pipes 6 are provided with a plurality of second spray heads 61 arranged facing the transformer body 1. The independent spray device can not only cool the transformer surface, but also cool the surrounding air.

[0027] According to one embodiment of the present application, the second nozzle 6 is installed on the side of the transformer through two support rods 7, and a mounting seat 71 is installed on the top of the support rod 7. The nozzle is rotatably connected to the mounting seat 71, and one end of the nozzle is fixedly connected to a connecting rod, which is connected to the output shaft of the motor 8 through a coupling. The motor 8 is connected to the remote control unit. During the spraying process, the motor 8 can be driven to rotate by the remote control unit, thereby realizing the rotation of the spraying angle of the independent spraying device. The second nozzle 6 can be made of galvanized steel pipe, and the nozzle can be made of a copper nozzle with adjustable spray radius.

[0028] According to one embodiment of the present application, the remote control control unit includes a remote control terminal and a serial communication server, a serial relay and an AC contactor which are electrically connected in sequence; the remote control terminal is connected to the serial communication server in communication, and the AC contactor is connected between the power supply and the first water pump M1; the manual control unit includes a manual switch connected between the power supply and the first water pump M1. The serial communication server is used to receive the command information sent by the remote control terminal, and then perform digital-to-analog conversion on the received command information, convert the weak current signal into a strong current voltage to act on the serial relay to turn it on and then control the conduction of the power supply circuit. The low-voltage circuit breaker is connected to a 380V AC three-phase power supply at the top and an AC contactor at the bottom, and supplies power to the spray water pump under the action of the control circuit.

[0029] According to one embodiment of the present application, the system further includes a camera arranged facing the transformer body 1 for acquiring an image of the transformer body 1, and the camera is connected to the serial communication server via a data collector. The camera acquires image information of the transformer in real time, and uploads it to the remote control terminal via the data collector and the serial communication server, so that remote video linkage can be realized, and the staff can remotely monitor the operating conditions of the sprinkler system.

[0030] According to one embodiment of the present application, a water level sensor 21 connected to a data collector is provided in the water tank 2; the water level sensor 21 is used to collect water level information in the water tank 2 in real time, and upload the water level information to a remote control terminal, so that the staff can know the water level in the water tank 2 in time, so as to replenish water in the water tank 2 in time.

[0031] According to one embodiment of the present application, the first water pump and the second water pump M2 are both centrifugal filter water pumps; the centrifugal filter water pumps play a power and purification role; they can filter the water in the water tank 2 to ensure the smooth operation of the spray system.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A transformer intelligent spray cooling system based on a centralized monitoring system, characterized in that: Including sprinkler system, water supply system and control system; The spray system includes an independent spray device arranged toward the transformer body for spraying water to cool the transformer body and an embedded spray device embedded between the heat sinks of the transformer for spraying water to cool the transformer body; The water supply system water storage tank, the independent spray device and the embedded spray device are respectively connected to the water storage tank through a water supply hose, and the water supply hose is connected in parallel with a first water pump and a second water pump; The control system includes a remote control unit connected to the first water pump and a manual control unit connected to the second water pump.

2. The transformer intelligent spray cooling system based on the centralized monitoring system according to claim 1 is characterized in that: The embedded spray device includes a water distribution pipe and a plurality of first nozzles arranged between two adjacent heat sinks of the transformer, wherein the plurality of first nozzles are respectively connected to the water distribution pipe; a first nozzle is provided on the first nozzle, wherein the first nozzle adopts a double-headed atomizing nozzle, and the two nozzles of the first nozzle are respectively arranged to face the heat sinks on both sides.

3. The transformer intelligent spray cooling system based on the centralized monitoring system according to claim 1 or 2 is characterized in that: The independent spraying device comprises a plurality of second spray pipes arranged around the transformer body, and the second spray pipes are provided with a plurality of second spray heads arranged facing the transformer body.

4. The transformer intelligent spray cooling system based on the centralized monitoring system according to claim 3 is characterized in that: The second nozzle is installed on the side of the transformer through two support rods, a mounting seat is installed on the top of the support rod, the nozzle is rotatably connected to the mounting seat, one end of the nozzle is fixedly connected to a connecting rod, and the connecting rod is connected to the output shaft of the motor through a coupling.

5. The transformer intelligent spray cooling system based on the centralized monitoring system according to claim 1 is characterized in that: The remote control control unit includes a remote control terminal and a serial communication server, a serial relay and an AC contactor which are electrically connected in sequence; the remote control terminal is communicatively connected to the serial communication server, and the AC contactor is connected between the power supply and the first water pump; the manual control unit includes a manual switch connected between the power supply and the first water pump.

6. The intelligent spray cooling system for transformers based on a centralized monitoring system according to claim 1 is characterized in that: The system also includes a camera arranged facing the transformer body and used for acquiring an image of the transformer body. The camera is connected to a serial communication server via a data collector.

7. The intelligent spray cooling system for transformers based on a centralized monitoring system according to claim 6 is characterized in that: A water level sensor connected to the data collector is arranged in the water storage tank.

8. The intelligent spray cooling system for transformers based on a centralized monitoring system according to claim 1 is characterized in that: The first water pump and the second water pump are both centrifugal filtering water pumps.

Images