CN214118395U

CN214118395U - Cabin management and control device for fan blade anti-icing and deicing system

Info

Publication number: CN214118395U
Application number: CN202023324648.4U
Authority: CN
Inventors: 陈光荣; 文飞; 舒禹; 刘小春; 王昭力; 杨东升; 李伟
Original assignee: Datang Guizhou New Energy Development Co ltd; Guizhou Institute of Technology
Current assignee: Datang Guizhou New Energy Development Co ltd; Guizhou Institute of Technology
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-03
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a cabin management and control device for a fan blade anti-icing and deicing system, which comprises a box body; the box body is provided with a network port and a control power supply, the network port and the control power supply are connected to 4 PLCs in the box body, and are respectively connected to an external network and an external power supply outside the box body. The utility model discloses effectively integrate power supply line and communication line to because the emergence of conflict, the circumstances such as mistake of fit in the higher integration degree effectively reduces engineering practice, and prevent and remove ice system suitability good with the fan, be suitable for popularization and application.

Description

Cabin management and control device for fan blade anti-icing and deicing system

Technical Field

The utility model relates to an engine room management and control device that is used for fan blade to prevent and remove ice system.

Background

In the areas of Yunobi plateau, Hunan, Sichuan and the like in China, wind power development becomes one of the main ways for promoting the development and utilization of new energy in the areas. However, under these special geographic environments and climatic conditions, such as karst complex terrain, moisture freezing, and remarkable microclimate characteristics, the surface of a fan blade in operation is prone to icing and icing, which causes adverse effects such as reduced fan output, unbalanced blade rotation and vibration, and in extreme cases, the fan may be overloaded during operation and may cause accidents such as collapse, blade fracture, ice-throwing damage, and the like, so wind farm operators often adopt fan shutdown to deal with the accidents in the winter icing period every year, and in recent 5 years, research and statistics of wind farms in Guizhou areas show that the accumulation of the winter icing period can reach more than 30 days, which causes serious waste of wind resources and a certain degree of decline of wind farm operation performance, and improving the environmental adaptability of the fan in the winter icing period in these areas becomes a common technical problem in these areas.

At present, the fan blade deicing method proposed at home and abroad mainly comprises various forms of mechanical deicing, ultrasonic deicing, paint deicing, heat deicing and the like, wherein the heat deicing is divided into electric heating deicing and gas heating deicing. The gas-heating deicing method has the advantages of easy realization of reconstruction on site, convenient maintenance, no increase of lightning triggering risk and the like, and is gradually paid attention to the industry, and the basic scheme is as follows: the customized air duct heater is arranged at the blade root part on the front edge side of the blade, air is heated and then conveyed to the middle upper part (more than 15 m) of the front edge of the blade by an air blower to continuously heat the composite material blade, so that the surface temperature of the blade in the icing period in winter is more than 0 ℃ to achieve the aim of preventing and removing ice.

In the fan blade air heating method deicing system that adopts at present, the maincenter link of this system is the cabin management and control device, mainly realizes the function as follows:

(1) AC690V power supply regulation: an AC690 power supply is led from the bottom of the fan tower to an engine room control device and then is supplied to three blades as a heater power supply through a slip ring;

(2) connecting an icing sensor: the blade icing sensor arranged at the top of the cabin needs to be provided with an AC220V power supply and receives a detection signal from the icing sensor, and the detection signal enters a fan blade deicing system through a cabin management and control device to play a icing monitoring role;

(3) the work control information of the deicing heating system in the three blades, such as starting up/stopping, temperature monitoring, stepless power adjustment of a heater and the like, needs to be networked with the fan monitoring system through the cabin control device, and the operation monitoring of the blade deicing prevention system is carried out at a 110kV booster station.

However, in practice, it is found that the cabin cabinet of the host machine in the prior art generally adopts a simpler cabinet body, and only extra independent installation configuration can be provided for connection, management and control and the like required by the control system, so that the integration degree is low and conflicts easily occur.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a cabin management and control device that is used for fan blade to prevent off ice system, this cabin management and control device that is used for fan blade to prevent off ice system effectively integrates power supply line and communication line to effectively reduce the emergence of the condition such as conflict, mistake in the engineering practice based on higher integration degree.

The utility model discloses a following technical scheme can realize.

The utility model provides a pair of an engine room management and control device for fan blade prevents and removes ice system, the power distribution box comprises a box body, be equipped with net gape one and control power supply on the box, net gape one connects to 4 PLC in the box, connects to external network and external power source respectively outside the box with control power supply.

The first net mouth is connected to 3 blade PLC through a switch internally, and is connected to cabin PLC through No. two switches externally.

The cabin PLC is connected with the icing sensor.

The cabin PLC network is communicatively connected to a monitoring system.

The number of the blade PLC is three, and the three blade PLC are respectively a first blade PLC, a second blade PLC and a third blade PLC.

The box body consists of six surfaces of a front door, a top cover, a left side plate, a right side plate, a bottom plate and a back plate.

The cabin PLC and the monitoring system are in network communication through a second switch.

A door lock and a touch screen are arranged on the front door; the touch screen is a serial port touch screen.

The lightning arrester is arranged on the left side plate or the right side plate; the left side plate is provided with a left cooling fan, the right side plate is provided with a right cooling fan, and the left cooling fan and the right cooling fan are not on the same horizontal plane.

The bottom plate is provided with a first net port, a second net port, a control power supply port, a heating power supply line outlet and a heating power supply line inlet, and the control power supply port, the heating power supply line outlet and the heating power supply line inlet are all interfaces of power supply lines.

The beneficial effects of the utility model reside in that: the power supply line and the communication line are effectively integrated, so that the situations of conflict, mismatching and the like in engineering practice are effectively reduced based on higher integration degree, the adaptability of the anti-icing system and the fan anti-icing system is good, and the anti-icing system is suitable for popularization and application.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a bottom view of FIG. 1;

FIG. 5 is a top view of FIG. 1;

FIG. 6 is a schematic diagram of the internal component distribution of FIG. 1;

fig. 7 is a schematic diagram of the network connection of the present invention.

In the figure: 1-front door, 2-top cover, 3-left side plate, 4-right side plate, 5-bottom plate, 6-touch screen, 7-door lock, 8-left radiator fan, 9-lightning arrester, 10-right radiator fan, 11-net mouth I, 12-net mouth II, 13-control power supply mouth, 14-heating power supply line outlet, 15-heating power supply line inlet, 16-back plate, 17-current transducer, 18-heating power supply breaker, 19-heating power supply contactor, 20-control power supply, 21-central PLC, 22-intermediate relay, 23-wind turbine part, 24-fan cabin part, 25-first blade PLC, 26-second blade PLC, 27-third blade PLC, 28-first switch, 29-a fan slip ring, 30-a management and control center, 31-a second switch, 32-a cabin PLC, 33-an icing sensor and 34-a monitoring system.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

1 ~ 7 show a cabin management and control device for fan blade prevents and removes ice system, including the box, be equipped with net gape 11 and control power supply 20 on the box, net gape 11 and control power supply 20 dock 4 PLC in to the box, dock respectively to external network and external power supply outside the box.

The first net mouth 11 is connected to 3 blade PLCs through a first switch 28 internally and is connected to the cabin PLC32 through a second switch 31 externally.

The nacelle PLC32 is connected to the icing sensor 33.

The cabin PLC32 is network communicatively connected to the monitoring system 34.

The number of the blade PLC is three, and the three blade PLC are respectively a first blade PLC25, a second blade PLC26 and a third blade PLC 27.

The box body consists of six surfaces of a front door 1, a top cover 2, a left side plate 3, a right side plate 4, a bottom plate 5 and a back plate 16.

The cabin PLC32 and the monitoring system 34 are in network communication through switch number two 31.

A door lock 7 and a touch screen 6 are arranged on the front door 1; the touch screen 6 is a serial port touch screen.

The lightning arrester 9 is arranged on the left side plate 3 or the right side plate 4; the left side plate 3 is provided with a left cooling fan 8, the right side plate 4 is provided with a right cooling fan 10, and the left cooling fan 8 and the right cooling fan 10 are not on the same horizontal plane.

The bottom plate 5 is provided with a first net port 11, a second net port 12, a control power supply port 13, a heating power supply line outlet 14 and a heating power supply line inlet 15, and the control power supply port 13, the heating power supply line outlet 14 and the heating power supply line inlet 15 are all interfaces of power supply lines.

Generally, the control power supply 20 is installed with a control switch including a left portion, a 24V power supply in the middle portion, and an industrial switch in the right portion.

Example 1

The scheme is adopted, and the method specifically comprises the following steps:

a10-inch touch screen 6 is installed on a front door 1 in a matched mode, the touch screen 6 integrates an RS422/TCP/IP serial port, an industrial Ethernet interface and a USB 2.0host interface, can be directly communicated with a PLC S7-200 SMART ST20 module and is used for on-site management and control operation of a fan blade heating anti-icing and deicing system in an engine room, and meanwhile, a door lock 7 is arranged on the front door 1 for facilitating management and operation convenience of internal components and technical requirements of water resistance, moisture resistance, dust resistance and the like. The top cover 2 is used as a water drop-proof and dust-proof component at the upper part of the device box body and is a whole plate.

The left side plate 3 is provided with a left cooling fan 8 and a lightning arrester 9, the right side plate is provided with a right cooling fan 10, the left cooling fan 8 and the right cooling fan 10 are arranged in a high-right-low position, the air circulation type wind turbine generator is used for discharging the operation heat of components in the cabin management and control cabinet in an air circulation mode to ensure that the temperature in the device is in a normal range, and the lightning arrester 9 is used for preventing the fan blade deicing system from responding to overvoltage intrusion from a 690V power supply side to influence the normal work of the system.

The bottom plate 5 is provided with a first net port 11, a second net port 12, a control power port 13, a heating power line outlet 14 and a heating power line inlet 15. And a signal wire leading a signal channel from a fan slip ring passes through the net port 11 and then is connected to the first switch 28 for networking, and a DP bus from a TCP/IP (transmission control protocol/Internet protocol) DP conversion module (namely a signal conversion module 33) matched with the PLC passes through the net port two 12 and is connected to a 110kV booster station blade anti-icing monitoring machine 35. The direct current 24V power line from the control power port 13 through the icing sensor 34 mounted on the top of the nacelle and the communication line are in a model bus protocol, and the PLC S7-200 SMART ST20 is in remote communication with the icing sensor 34.

On the back plate 16, a current transducer 17, a heating power breaker 18, a heating power contactor 19, and a control power 20 including a control loop switch and a 24V power, a central PLC21, and an intermediate relay 22 are installed and arranged.

The current transducer 17 enables the workload current detection of the 690V power line of the fan blade anti-icing system to perform remote metering of the power consumption of the blade anti-icing heating system. The heating power supply breaker 18 and the heating power supply contactor 19 are combined to realize the operation, cut-off and protection of the 690V working power supply of the fan anti-icing and deicing system.

In the control power supply 20, a control loop switch and a direct current 24V power supply provide 24V working power supply for the current transducer 17, the central PLC21, the intermediate relay 22 and the first switch 28, the control loop switch provides 220V working power supply for the icing sensor 34, and the industrial switch 31 is used for networking the central PLC21 in the fan blade deicing prevention system with the first switch 28 in the wind turbine part 23.

Analog quantity input/output and signal conversion are configured on the central PLC21, namely the central PLC21 is a control master station, operation control of the first-blade PLC25, the second-blade PLC26, the third-blade PLC27 and the cabin PLC32 is achieved, and information interaction is achieved through optical fibers and the remote monitoring system 34 based on the signal conversion module 33.

The plurality of intermediate relays 22, in cooperation with the central PLC21, realize operation control of the 690V heating power circuit breaker 18 and the heating power contactor 19, trigger indication of the arrester 9, and operation control of the left and right heat-dissipating

fans

8 and 10.

In the wind turbine part 23, a PLC is installed for an anti-icing and deicing heating system of each blade, namely a first blade PLC25, a second blade PLC26 and a third blade PLC27, a first switch 28 is configured, a TCP/IP communication protocol is adopted to be networked with three PLCs, a communication line led out from the first switch 28 is connected to a second switch 31 in a control center 30 after passing through a fan slip ring 29 in the fan cabin part 24, the TCP/IP communication protocol is also adopted to realize the remote operation and monitoring of the blade anti-icing and deicing heating system in the monitoring system 34 and the first blade PLC25, the second blade PLC26 and the 3 blade PLC27 in the wind turbine part 23, and the technical requirement for achieving the purpose of preventing and killing out fan blade ice is achieved.

The monitoring system 34 is a 110kV station monitoring system.

Claims

1. The utility model provides a cabin management and control device for fan blade prevents getting rid of ice system, includes the box, its characterized in that: the box body is provided with a first network port (11) and a control power supply (20), the first network port (11) and the control power supply (20) are connected to 4 PLCs in the box body, and the outside of the box body is connected to an external network and an external power supply respectively.

2. Nacelle regulating device for a wind turbine blade anti-icing system according to claim 1, wherein: the net mouth I (11) is connected to the 3 blade PLC through the first exchanger (28) internally and connected to the cabin PLC (32) through the second exchanger (31) externally.

3. The nacelle regulating apparatus for a wind turbine blade anti-icing system according to claim 2, wherein: the cabin PLC (32) is connected with an icing sensor (33).

4. Nacelle regulating device for a wind turbine blade anti-icing system according to claim 3, wherein: the nacelle PLC (32) is network communicatively connected to a monitoring system (34).

5. The nacelle regulating apparatus for a wind turbine blade anti-icing system according to claim 2, wherein: the number of the blade PLC is three, and the three blade PLC are respectively a first blade PLC (25), a second blade PLC (26) and a third blade PLC (27).

6. Nacelle regulating device for a wind turbine blade anti-icing system according to claim 1, wherein: the box body consists of a front door (1), a top cover (2), a left side plate (3), a right side plate (4), a bottom plate (5) and a back plate (16) in six sides.

7. Nacelle regulating device for a wind turbine blade anti-icing system according to claim 4, wherein: the cabin PLC (32) and the monitoring system (34) are in network communication through a second switch (31).

8. The nacelle regulating apparatus for a wind turbine blade anti-icing system of claim 6, wherein: a door lock (7) and a touch screen (6) are arranged on the front door (1); the touch screen (6) is a serial port touch screen.

9. The nacelle regulating apparatus for a wind turbine blade anti-icing system of claim 6, wherein: the lightning arrester (9) is arranged on the left side plate (3) or the right side plate (4); a left radiating fan (8) is arranged on the left side plate (3), a right radiating fan (10) is arranged on the right side plate (4), and the left radiating fan (8) and the right radiating fan (10) are not on the same horizontal plane.

10. The nacelle regulating apparatus for a wind turbine blade anti-icing system of claim 6, wherein: the bottom plate (5) is provided with a first net port (11), a second net port (12), a control power port (13), a heating power line outlet (14) and a heating power line inlet (15), and the control power port (13), the heating power line outlet (14) and the heating power line inlet (15) are interfaces of power lines.