CN210166884U

CN210166884U - Wind generating set's fire alarm device and fire control unit thereof

Info

Publication number: CN210166884U
Application number: CN201920996443.9U
Authority: CN
Inventors: 刘民崇; 石宇
Original assignee: Shanghai Rongrun New Energy Technology Co Ltd
Current assignee: Shanghai Rongrun New Energy Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-20
Anticipated expiration: 2029-06-28

Abstract

A fire alarm device of a wind generating set and a fire fighting device thereof comprise an alarm cylinder, wherein the inside of the alarm cylinder is provided with an alarm inner cylinder, the top of the alarm inner cylinder is sealed by an alarm cover, the alarm cover is fixedly assembled with one end of a fold cylinder, and the other end of the fold cylinder is fixedly assembled with the outer wall of the alarm cylinder; the inner side of the alarm cover is fixedly assembled with one end of a lifting rod, the other end of the lifting rod penetrates through a supporting partition plate and then is fixedly assembled with a limiting disc, the limiting disc and the lifting rod can slide in the axial direction, the supporting partition plate is fixedly assembled with the alarm inner cylinder, and a lifting spring is sleeved on the part between the lifting rod and the alarm cover as well as the supporting partition plate; a clamping groove is formed in the limiting disc, the clamping groove is clamped and assembled with one end of the lock rod, the other end of the lock rod penetrates through the lock groove and then is assembled and fixed with the driving pin, a stop ring is arranged on the part, located in the lock groove, of the lock rod, and a lock rod spring is sleeved on the part, located between the lock groove and the inner wall of the lock groove, of the lock rod; the lock rod is arranged in the unlocking groove which is arranged on the unlocking plate.

Description

Wind generating set's fire alarm device and fire control unit thereof

Technical Field

The utility model relates to a wind power generation set especially relates to a wind generating set's fire alarm device and fire control unit thereof.

Background

Wind generating sets are high-value devices, and the value of each wind generating set is as high as more than one thousand yuan. The height is dozens of meters to more than one hundred meters away from the ground. And is mostly established in remote areas of principle cities. The blades of the fan are made of composite materials, the shell of the engine room is made of glass fiber reinforced plastics, and various electrical equipment, hydraulic stations, gear boxes, generators and the like are contained in the shell. In case of fire, the fan equipment is basically completely lost, and the residual equipment has no value for maintenance and use. And the larger the capacity of the single machine is, the higher the equipment value is, and the more fire protection is needed. However, the existing wind generating set is only provided with a simple carbon dioxide or dry powder fire extinguisher as a fire extinguishing means at the part of the set which is easy to catch fire, and has no fire alarm function. After a fire disaster, the wind turbine generator system is difficult to rescue, and once the wind turbine generator system catches fire, the fire extinguishing device is not comprehensive, so that the wind turbine generator system can be scrapped and high in loss.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide a wind generating set's fire alarm device and fire control unit thereof, its fire alarm device has electronic type and starts the function with mechanical type automatic start.

In order to achieve the purpose, the utility model provides a fire alarm device of a wind generating set, which is respectively installed corresponding to each inner cavity and comprises an alarm cylinder, wherein the alarm cylinder is internally provided with an alarm inner cylinder, the top of the alarm inner cylinder is sealed by an alarm cover, the alarm cover is fixedly assembled with one end of a fold cylinder, and the other end of the fold cylinder is fixedly assembled with the outer wall of the alarm cylinder;

the inner side of the alarm cover is fixedly assembled with one end of a lifting rod, the other end of the lifting rod penetrates through a supporting partition plate and then is fixedly assembled with a limiting disc, the limiting disc and the lifting rod can slide in the axial direction, the supporting partition plate is fixedly assembled with the alarm inner cylinder, and a lifting spring is sleeved on the part between the lifting rod and the alarm cover as well as the supporting partition plate;

the limiting disc is provided with a clamping groove, the clamping groove is clamped and assembled with one end of a lock rod, the other end of the lock rod penetrates through the lock groove and then is assembled and fixed with the driving pin, a blocking ring is arranged on the part of the lock rod, which is positioned in the lock groove, and a lock rod spring is sleeved on the part of the lock rod, which is positioned between the lock groove and the inner wall of the lock groove; the lock rod is arranged in an unlocking groove which is arranged on the unlocking plate and consists of a straight groove and an inclined groove, and the driving pin is assembled with the straight groove.

Preferably, one end of the unlocking plate is arranged in the unlocking sliding groove, the other end of the unlocking plate penetrates through the shell and then is arranged in the driving cylinder, the driving cylinder is a hollow driving inner cylinder, a heat absorbing sheet is arranged on the outer wall of the driving cylinder, a stress ring is arranged on the part, which is arranged in the driving inner cylinder, of the unlocking plate, a warning memory spring is sleeved between the stress ring and the closed end of the driving inner cylinder, and the driving cylinder is arranged in the inner cavity.

Preferably, the warning memory spring is stretched at 180-230 ℃.

Preferably, the device further comprises an external audible and visual alarm, and the external audible and visual alarm is controlled by the controller to give out audible and visual alarms.

Preferably, in the initial state, the lifting spring is in a compressed state.

Preferably, the pleated cartridge is of a resilient pleated design that straightens when the alarm cover is raised.

A fire fighting device is used for a wind generating set, detects and extinguishes fire of the wind generating set, and is also applied with the fire alarm device.

The utility model has the advantages that:

1. the utility model discloses mechanical automatic control puts out a fire's function when having electronic control and conflagration to can control, put out a fire the conflagration more in a flexible way.

2. The utility model discloses a hot aerosol extinguishing device passes through the bypass design, and the atmospheric pressure that can detect the aerosol can be when electronic control became invalid again, puts out a fire through the bypass.

3. The utility model discloses an engine room high-speed shaft brake equipment can brake the high-speed shaft to the high-speed shaft of rapid stop when the conflagration breaing out makes whole equipment be in out of work state, can prevent like this that the conflagration from stretching and reducing the damage degree of equipment in that the casing is inside.

4. The utility model discloses a fire alarm device can report to the police through mechanical control when electronic control became invalid to for the personnel of putting out a fire provide when the conflagration guide, also can provide for maintainer guide after the conflagration moreover.

5. The utility model discloses safety monitoring device can realize the detection to the conflagration through fire detector, but also can cut off the intercommunication of each inner chamber through the baffle subassembly to prevent that the flue gas from stretching.

6. The utility model discloses a fire detector carries out the conflagration through flame, temperature, smog, combustible gas and surveys, and can realize the circulation in the certain angle and detect to can discover conflagration and conflagration hidden danger in advance, thereby prevent that the conflagration from expanding.

7. The utility model discloses a smoke prevention and exhaust device accessible baffle subassembly cuts off each inner chamber, then the heat that produces through the conflagration is with its inside flue gas outgoing to prevent that local atmospheric pressure from too big causing the explosion, also can prevent simultaneously that the oxygen that brings because the air current circulation from causing the intensity of a fire to enlarge when the intensity of a fire is less.

8. The utility model discloses an automatic sealing when electrical protection cabinet can realize the conflagration to avoid the high temperature flue gas to get into, cause inside electronic equipment to damage.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the aerosol fire extinguishing device of the present invention.

Fig. 4 is an enlarged view of fig. 3 at F1.

Fig. 5 is a schematic structural view of the supplementary fire extinguishing apparatus of the present invention.

Fig. 6 is a schematic structural diagram of the thermal switch assembly of the present invention.

Fig. 7 is a schematic structural diagram of the partition plate assembly of the present invention.

Fig. 8 is a schematic structural view of the smoke prevention and exhaust device of the present invention.

Fig. 9 is a schematic structural view of the fire alarm device of the present invention.

Fig. 10 is an enlarged view at F2 in fig. 9.

Fig. 11 is a schematic structural view of the fire detector of the present invention.

Fig. 12 is a schematic structural view of the fire detector of the present invention.

Fig. 13 is a schematic structural view of the fire detector of the present invention.

Fig. 14 is a schematic structural view of the fire detector of the present invention.

Fig. 15 is a schematic structural view of the fire detector of the present invention.

Fig. 16 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 17 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 18 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 19 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 20 is a schematic structural view of the driving platen, the first half-tooth and the second half-tooth of the present invention.

Fig. 21 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 22 is a schematic structural view of the nacelle high-speed shaft brake device of the present invention.

Fig. 23 is a schematic structural view of the electric protection cabinet of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, the fire fighting device of the embodiment includes a housing 110, a safety monitoring device, a slow shaft 310, a gearbox 320, a high speed shaft 330, a generator 340, and an electrical protection cabinet 370 are installed inside the housing 110, the slow shaft 310 is driven by fan blades and transmits power to the gearbox, the gearbox 320 adjusts the rotation speed and transmits the rotation speed to the generator 340 through the high speed shaft 330 to generate power, and a controller, a wireless module (GPRS module, 4G module, etc.), a power meter, etc. for controlling the whole wind turbine generator set are installed in the electrical protection cabinet 370. The embodiment is improved based on the existing wind generating set, and in fig. 1, only a safety monitoring device is added.

Referring to fig. 1-2, the safety monitoring device includes a camera 210, an audible and visual alarm 350, a data acquisition card 360, and a fire detector 500, wherein a signal output end of the fire detector 500 and a signal output end of the camera 210 are respectively connected to a signal input end of the data acquisition card 360 in a communication manner, and a signal output end of the data acquisition card 360 is connected to a signal end of a controller in a communication manner, in this embodiment, the controller is a CPU or a PLC. The signal input end of the audible and visual alarm 350 is in communication connection with the signal end of the controller, and the controller can transmit a trigger instruction to the audible and visual alarm when in use, so that the audible and visual alarm is triggered and then emits flashing light and sound to give an alarm.

The camera 210 is used for collecting images inside the casing 110 and then transmitting the images to the controller, and the controller stores the images in a hard disk or transmits the images to external equipment (a server) through a wireless module, so that managers can observe the conditions inside the casing 110 in time.

Referring to fig. 2, in order to prevent fire from expanding and extinguishing the fire due to the circulation of flame and smoke inside the whole casing 110 when a fire occurs, the applicant divides the inside of the casing 110 into a plurality of independent inner cavities by a plurality of partition plates 120, wherein the independent inner cavities are a first inner cavity 111, a second inner cavity 112, a third inner cavity 113 and a fourth inner cavity 114 (which are collectively referred to as inner cavities in this embodiment), a part of slow shaft 310 is installed in the first inner cavity 111, a gearbox 320 is installed in the second inner cavity 112, a generator 330 is installed in the third inner cavity 113, an electrical cabinet 370 is installed in the fourth inner cavity 114, a camera 210, a fire detector 500 and an aerosol fire extinguishing device 400 are installed in each inner cavity, and the fire detector 500 is used for comprehensively judging whether a fire hazard exists or whether a fire situation exists by using combustible gas, smoke, temperature, flame and the like. The aerosol fire extinguishing apparatus 400 is used to be activated when a fire occurs, thereby spraying aerosol to extinguish the fire in the interior cavity.

Referring to fig. 11 to 15, the fire detector 500 includes a detecting top plate 511, a detecting side plate 512, and a detecting bottom plate 513, where there are four detecting side plates 512, and they jointly enclose a detecting inner cavity, and both ends of the detecting side plate 512 are respectively fixed on the detecting bottom plate 513 and the detecting top plate 511, a detecting air inlet 5131 is provided on the detecting bottom plate 513, and a detecting partition plate 514 is installed in the detecting inner cavity, a flow meter 621, a smoke sensor 622, a combustible gas sensor 623, a first detecting motor 611, and a control box 640 are installed on the detecting partition plate 514, air inlet ends of the smoke sensor 622 and the combustible gas sensor 623 are respectively communicated with an air outlet end of the flow meter 621, and air outlet ends of the smoke sensor 622 and the combustible gas sensor 623 are respectively connected out of the detecting inner cavity through air pipes;

a second retaining ring 572 is fixed on the detection partition plate 514, a first retaining ring 571 is fixed on the detection bottom plate 513, the first retaining ring 571 and the second retaining ring 572 are respectively rotatably assembled with two ends of the gear cylinder 520, and the gear cylinder 520, the first retaining ring 571 and the second retaining ring 572 are coaxially mounted;

the bottom and the outer side of the gear cylinder 520 are fixedly provided with a detection hinge plate 522, the detection hinge plate 522 is hinged with a detection rotary shell 530 through a detection hinge shaft 541, one end of the detection rotary shell 530 is provided with a sector gear part 531, a flame detector 532 and an infrared temperature detector 533 are arranged in the detection rotary shell 530, the flame detector 532 is used for detecting flame, the infrared temperature detector 533 is used for detecting temperature through infrared rays, and the flame detector 532 and the infrared temperature detector 533 directly purchase existing products in the embodiment;

the sector gear portion 531 is engaged with the teeth on the steering rack 550 to form a rack and pinion transmission mechanism, and the steering rack 550 passes through the bottom of the gear cylinder 520 and is loaded into the gear cylinder 520, and is engaged with the second detection gear 582 mounted in the gear cylinder 520 to form a rack and pinion transmission mechanism;

the second detection gear 582 is fixed on the output shaft of the second detection motor 612, so that the second detection gear 582 can be driven to rotate forward and backward in the circumferential direction after the second detection motor 612 is electrified; the top of the steering rack 550 is fixed with a rack trigger plate 511, and a first detection travel switch 651 and a second detection travel switch 652 are respectively fixed in the gear drum 520 and on two sides of the rack trigger plate 511, wherein trigger ends of the first detection travel switch 651 and the second detection travel switch 652 are respectively opposite to the rack trigger plate 511, and are respectively used for limiting the maximum displacement of the steering rack from moving up and down.

The signal ends of the first detection travel switch 651 and the second detection travel switch 652 are respectively in communication connection with the signal end of an MCU installed in the control box, and the MCU is respectively in communication connection with the control end of a motor driver driving the first detection motor 611 and the second detection motor 612, so that when the first detection travel switch 651 and the second detection travel switch 652 are triggered, the first detection travel switch 651 and the second detection travel switch 652 can transmit electric signals to the MCU, and the MCU controls the second detection motor 612 to stop rotating through a motor controller. The first detection motor and the second detection motor are servo motors or stepping motors.

The inner wall of the gear cylinder 520 is provided with gear cylinder latches 521, the gear cylinder latches 521 are at least in meshed transmission with two first detection gears 581, the first detection gears 581 are installed on a first detection shaft 671, and one end of the first detection shaft 671 penetrates through the detection partition 514 and is assembled with the detection partition 514 in a rotatable and axially immovable manner;

one of the first detection shafts 671 is connected with an output shaft of the first detection motor 611 through a coupling, so that the first detection motor 611 can drive the first detection shaft 671 to rotate forward and backward in the circumferential direction, and thus drive the gear cylinder to rotate forward and backward; the other first detection shaft 671 is fixedly assembled with the first detection belt wheel 631, the first detection belt wheel 631 is connected with the second detection belt wheel 632 through a detection belt 630 to form a belt transmission mechanism, the second detection belt wheel 632 is fixed at one end of the second detection shaft 672, the other end of the second detection shaft 672 penetrates through the detection partition plate 514 and then is fixedly assembled with an impeller 590, the impeller 590 is installed in a detection air inlet inner cylinder 561 of the detection air inlet cylinder 560, and the detection air inlet inner cylinder 561 is communicated with the detection air inlet 531; the detection air inlet inner cylinder 561 is in air guide communication with an air inlet end of the flow meter 621 through a detection air pipe;

the signal ends of the flame detector 532, the infrared temperature detector 533, the flowmeter 621, the combustible gas sensor and the smoke sensor are respectively in communication connection with the signal end of the MCU, so that the detected parameters can be transmitted into the MCU, and the signal end of the MCU is in communication connection with the signal end of the controller, so that the MCU can transmit the signals into the controller.

During the use, the second detection shaft rotates to drive impeller 590 rotates, can take into outside air current during the impeller rotates and survey the inner tube 561 that admits air, then get into in flowmeter, combustible gas sensor, the smoke transducer, thereby make the flowmeter survey the gas flow, combustible gas sensor surveys combustible gas concentration, smoke transducer surveys smog. And inputting the detected data into the MCU, calculating and comparing the data by the MCU according to a preset algorithm or a threshold value, and once the data exceeds the threshold value, judging the fire or the hidden fire hazard, feeding back a signal to the controller by the MCU, and triggering the fire-fighting device to extinguish the fire by the controller according to a preset program.

Meanwhile, the flame detector 532 and the infrared temperature detector 533 further confirm whether a fire exists by detecting temperature and flame respectively, and judge through a program and a threshold value built in the MCU, and once confirm, feed back a signal to the controller.

The first detection motor 611 drives the gear drum to rotate circumferentially to drive the detection rotation housing 530 to detect, and the second detection motor 612 drives the rack to move up and down to drive the detection rotation housing 530 to rotate centering on the detection hinge shaft 541, thereby increasing the detection angle of the detection rotation housing 530. The detection top plate 511 is used to be assembled and fixed with the inner wall of the housing, thereby fixing and installing the fire detector 500.

Referring to fig. 2-3, since in practical use, different fire conditions may cause malfunction of electronic equipment, or system failure may also cause malfunction of electronic equipment, in the present invention, the aerosol fire extinguishing apparatus 400 is improved as follows:

the aerosol fire extinguishing device 400 comprises an aerosol bottle body 410 for storing aerosol, wherein the aerosol bottle body 410 is respectively communicated with an inlet of an aerosol solenoid valve 441 and an inlet of a fourth aerosol pipe 434 through a first aerosol pipe 431, an outlet of the aerosol solenoid valve 441 is communicated with a second aerosol pipe 432, and the aerosol is led out and sprayed through the second aerosol pipe 432 when the aerosol fire extinguishing device is used; the control end of the aerosol solenoid valve 441 is in communication connection with the signal end of the controller, so that the connection or disconnection of the aerosol solenoid valve 441 can be controlled by the controller.

The inside of the fourth aerosol pipe 434 is a hollow air pressure detection inner pipe 4341, the end of the fourth aerosol pipe 434 is closed, and the air pressure detection inner pipe 4341 is communicated with the second aerosol pipe 432 through a third aerosol pipe 433; the third aerosol pipe 433 is installed in the aerosol switch block 450, an aerosol switch chute 451 is installed inside the aerosol switch block 450, the aerosol switch chute 451 cuts off the third aerosol pipe 433, an aerosol switch plate 460 is installed in the aerosol switch chute 451 in a slidable and sealed manner, an aerosol switch communication hole 461 is installed on the aerosol switch plate 460, and when the aerosol switch communication hole 461 is communicated with the third aerosol pipe 433, the aerosol enters the second aerosol pipe 432 through the third aerosol pipe 433, thereby forming a bypass pipeline.

One end of the aerosol switch plate 460 is fixedly assembled with one end of an aerosol switch spring 471, the other end of the aerosol switch spring 471 is fixedly assembled with the aerosol switch shell 420, and the aerosol switch shell 420 is fixed on the aerosol bottle body 410;

the other end of the aerosol switch board 460 is fixedly assembled with one end of an aerosol fuse rod 473, the other end of the aerosol fuse rod 473 is fixedly assembled with an aerosol fixing pin 472, the aerosol fixing pin 472 is fixedly assembled with an aerosol support piece 474, and the aerosol support piece 474 is fixed outside the aerosol switch shell 420;

the aerosol fuse rod 473 is made of a material that melts at about 180-220 ℃, and the present embodiment is made of an existing fusible alloy or a plastic that melts at a second temperature. When the aerosol solenoid valve is not timely opened due to a system failure in case of a fire, the temperature generated by the fire generally exceeds 250 ℃, at which the aerosol fuse rod 473 is heated and fused, then the aerosol switch spring 471 pulls the aerosol switch plate 460 towards the direction thereof by self-generated elastic force until the elastic force of the aerosol switch spring 471 is equal to the resistance generated by the aerosol switch plate 460, at this time, the aerosol switch communication hole 461 communicates the third aerosol pipe 433, and the aerosol enters the second aerosol pipe 432 through the third aerosol pipe 433 and is discharged to extinguish a fire.

The pressure detection inner tube 4341 is internally provided with a pressure detection plug 481 in a sliding and sealing manner, the pressure detection plug 481 is fixed with a first aerosol magnet, the outer wall of the aerosol switch shell 420 is fixed with a fifth aerosol tube 435, an aerosol microswitch 442 is installed in the fifth aerosol tube 435, the trigger end of the aerosol microswitch 442 is opposite to an aerosol trigger rod 4821, the aerosol trigger rod 4821 is fixed on an aerosol detection block 482, an aerosol detection spring 475 is installed between the aerosol trigger rod 4821 and the aerosol microswitch 442, the aerosol detection spring 475 is used for generating elastic force for preventing the aerosol detection block 482 from moving towards the aerosol microswitch 442, the aerosol detection block 482 is fixed with a second aerosol magnet, the first aerosol magnet and the second aerosol magnet are made of permanent magnets, and the first aerosol magnet, The second aerosol magnet is homopolar and opposite to generate a magnetic force which is mutually repulsive; the signal terminal of the aerosol microswitch 442 is in communication connection with the signal terminal of the controller.

When the aerosol in the aerosol bottle body is full, the generated air pressure can drive the pressure detection plug 481 to move towards the aerosol detection block 482, so that the aerosol detection block 482 overcomes the elastic force of the aerosol detection spring 475 to move towards the aerosol microswitch 442, the aerosol trigger rod 4821 triggers the aerosol microswitch 442, at the moment, the aerosol microswitch 442 continuously inputs an electric signal to the controller, and the controller judges that the aerosol in the aerosol bottle body is full.

Once the aerosol bottle is not filled with aerosol, the air pressure of the aerosol bottle is reduced, the pressure applied to the pressure detection plug 481 is reduced, the aerosol detection block 482 moves towards the pressure detection plug 481 under the elastic force of the aerosol detection spring 475, the aerosol detection block 482 drives the pressure detection plug 481 to move towards the direction of the aerosol detection spring 475 through the repulsive force between the aerosol detection block 482 and the pressure detection plug 481, until the aerosol trigger rod 4821 no longer triggers the aerosol microswitch 442, and at this time, the continuous input of the electric signal from the aerosol microswitch 442 to the controller is interrupted, and it is determined that the aerosol bottle is not filled with aerosol. At this time, a maintenance request can be sent to the external device through the wireless module.

The aerosol detection block 482 can reduce the sealing process and requirements of the air pressure detection inner tube 434 by the design of repulsive force between the aerosol detection block 482 and the pressure detection plug 481, thereby saving the cost and preventing the aerosol from leaking.

Referring to fig. 5-6, because the volume of the aerosol fire extinguishing apparatus 400 is smaller in the prototype test, it can only deal with the fire with smaller fire, once the aerosol in the aerosol fire extinguishing apparatus 400 is used up, the fire can not be extinguished, which makes the utility model appear quite insufficient.

In this regard, the applicant designs a supplementary fire extinguishing apparatus, which includes a storage tank a110, wherein aerosol is stored in the storage tank a110, an outlet of the storage tank a110 is communicated with an inlet of a supplementary solenoid valve a120, an outlet of the supplementary solenoid valve a120 is respectively communicated with one end of a plurality of second supplementary pipes a272 through first supplementary pipes a271, and the other end of the second supplementary pipes a272 is communicated with one end of a thermal switch channel a261 of a thermal switch assembly; the control terminal of the make-up solenoid A120 is communicatively connected to the controller so that the controller may control the opening and closing of the make-up solenoid A120. Of course, the aerosol fire extinguishing device 400 can be designed to be bypassed once at the supplementary solenoid valve a120, so as to avoid the problem of incapability of opening due to the failure of electronic equipment.

The switching channel a261 is arranged in a thermal switching block a260, the thermal switching block a260 is fixed inside the machine shell 110, and the thermal switching components are respectively distributed in each inner cavity, so that the device can be used as a spare fire extinguishing device.

A thermal chute A262 is further installed in the thermal switch block A260, the thermal chute A262 cuts off a thermal switch channel A261, a thermal switch plate A250 is slidably and hermetically installed in the thermal chute A262, a thermal switch hole A251 is formed in the thermal switch plate A250, and the thermal switch hole A251 is not communicated with the thermal switch channel A261 in an initial state;

the thermal switch plate A250 is fixedly connected with a thermal slip ring A240 through a second thermal connecting shaft A242, a first thermal connecting shaft A241 is further fixed on the thermal slip ring A240, the thermal slip ring A240 is installed in a thermal conduction inner cylinder A211 of a thermal conduction cylinder A210, the first thermal connecting shaft A241 is fixedly assembled with one end of a thermal memory spring A230, the other end of the thermal memory spring A230 is fixedly sleeved on a thermal conduction shaft A212, and the thermal conduction shaft A212 is fixed in the thermal conduction inner cylinder A211; the thermal heat conducting cylinder A210 is externally provided with a plurality of heat absorbing sheets A220. The thermal memory spring is stretched at 180-220 ℃.

When a fire breaks out, the supplementary electromagnetic valve is switched on, heat is conducted to the thermal heat conduction cylinder A210 through the heat absorbing sheet A220, then the heat enters the thermal heat conduction shaft A212 to heat the thermal memory spring A230, the thermal memory spring A230 extends after reaching the extension temperature so as to be driven, the thermal switch plate A250 slides until the thermal switch plate A250 reaches the maximum displacement, at the moment, the thermal switch hole A251 communicates the thermal switch channel A261, and therefore aerosol in the storage tank is conducted out to extinguish the fire. In this embodiment, the supplementary solenoid valve is turned on only after the electric signal of the aerosol microswitch disappears. Generally, the maintenance of the gas storage tank is troublesome and high in cost, and the sufficient amount of aerosol is ensured all the time, so that the use of the aerosol in the storage tank obviously causes higher use cost in case of a small fire, and the aerosol fire extinguishing device 400 is small and exquisite, is convenient to replace and maintain and has low cost. Thus, the aerosol fire suppression apparatus 400 is more economical in response to small fires.

Referring to fig. 7 to 8, since the flame and smoke may be transferred inside the housing in case of fire, once transferred, other parts may be exposed to the fire, thereby causing unnecessary loss. However, when the heat dissipation device is normally used, the inner cavities in the shell are preferably communicated, so that heat dissipation is facilitated. Obviously, the two are contradictory, and the inner cavity is closed and smoke is discharged in case of fire, and the inner cavity is communicated in case of normal fire. The applicant has designed smoke protection and evacuation devices, each of which is fitted with a smoke protection and evacuation device.

The smoke prevention and exhaust device comprises a partition plate assembly, the partition plate assembly comprises a partition plate 120, a through hole 121 is formed in the partition plate 120 and used for communicating all inner cavities, a guide groove plate 130 is fixed on the partition plate 120, a partition plate sliding groove 131 is formed between the guide groove plate 130 and the partition plate 120, a cut-off plate B120 is slidably mounted in the partition plate sliding groove 131, a communicating hole B121 is formed in the cut-off plate B120, and the communicating hole B121 is communicated with the through hole 121 when a fire disaster does not happen;

one end of the guide groove plate 130 is fixedly connected with the inner wall of the machine shell 110 through a fusing strip B140, the other end of the guide groove plate is fixedly assembled with one end of a pull rod B130, the other end of the pull rod B130 penetrates through the guide groove plate 130 and then is sleeved with a pressure spring B150, and finally is fixedly assembled with a trigger head B131, the trigger head B131 is right opposite to the trigger end of the third stroke switch B210, the fusing strip B140 is made of a material fused at the temperature of 180 and 230 ℃, and the pressure spring is in a compressed state. The signal terminal of the third stroke switch B210 is in communication connection with the signal terminal of the controller.

When a fire occurs, the fusing bar B140 is fused, the compression spring is not bound at the moment, the pull rod B130 is driven to move towards the third stroke switch B210 through the self-generated elastic force until the third stroke switch B210 is triggered, at the moment, the communication hole B121 is not communicated with the through hole 121, and the through hole 121 is in a cut-off state. The third travel switch transmits an electric signal to the controller, and the controller judges that a fire disaster occurs.

And a radiating pipe B110 is further installed in each inner cavity, one end of the radiating pipe B110 is communicated with an air outlet of the air pump, the other end of the radiating pipe B110 is communicated with the external atmosphere, an air inlet of the air pump is communicated with the external atmosphere, and a plurality of radiating fins B111 are arranged on the radiating pipe B110. Once the third stroke switch B210 is activated, the air pump is activated to cool the inner chamber by the air flow, which can reduce the propagation speed of the high temperature of the fire.

A plurality of air guide holes which penetrate through the protective orifice plate B160 are further fixed on the side wall of the inner cavity, a power tank B170 is arranged between the protective orifice plate B160 and the side wall of the inner cavity, liquid water is filled in the power tank B170, the interior of the power tank is respectively communicated with one ends of two piston cavities B312 through an inlet channel B311, the piston cavities B312 and the inlet channel B311 are arranged in a smoke exhaust shell B310, a switching cavity B313 is further arranged in the smoke exhaust shell B310, a piston B410 is hermetically and slidably arranged in the piston cavity B312, the piston B410 and one end of a push rod B430 are fixedly assembled, the other end of the push rod B430 penetrates through a return spring B420 arranged in the piston cavity B312 and then is fixedly assembled with one end of a switching plate B440 arranged in the switching cavity B313, the switching plate B440 is hermetically and slidably assembled with the switching cavity B313, a communication hole B441 is arranged on the switching plate B440,

the switching chamber B313 cuts off the first exhaust pipe B451, and in the initial state, the communication hole B441 is not communicated with the first exhaust pipe B451, one end of the first exhaust pipe B451 is communicated with the inner chamber through the first exhaust hole B314, the other end of one of the first exhaust pipes B451 is communicated with the air suction port of the air suction machine B220, and the exhaust port of the air suction machine B220 is communicated with the outside atmosphere;

the inner chamber is also communicated with the inlet of the smoke exhaust solenoid valve B230 through a second exhaust hole B315, and the outlet of the smoke exhaust solenoid valve B230 is communicated with the first exhaust pipe B451 through a second exhaust pipe B452, thereby forming a bypass.

The control end of the smoke exhaust electromagnetic valve B230 and the control end of the air extractor B220 are respectively in communication connection with the signal end of the controller. The controller can respectively control the on-off of the smoke exhaust electromagnetic valve B230 and the start-stop of the air extractor B220.

When a fire breaks out, the smoke exhaust electromagnetic valve B230 and the air extractor B220 are opened, so that smoke in the inner cavity is extracted, and external atmosphere enters the inner cavity to supplement air pressure. Once the fire is too big or the smoke exhaust solenoid valve B230 fails, the water in the power tank B170 boils, the generated water vapor forms a larger pressure, and then the push rod is pushed to move rightward against the elastic force of the return spring until the communication hole B441 is communicated with the first smoke exhaust pipe, at this time, normal smoke exhaust can be performed.

Referring to fig. 9 to 10, since the audible and visual alarm is provided to alarm, it may not work when a fire occurs due to a system failure, and it is necessary to know the location of the fire after or during the fire, thereby facilitating the repair and relief. In view of the above, the applicant proposed a fire alarm device, which is separately installed corresponding to each inner cavity, and comprises an external audible and visual alarm C410 and an alarm cylinder C110, wherein an alarm inner cylinder C111 is arranged inside the alarm cylinder C110, the top of the alarm inner cylinder C111 is closed by an alarm cover C120, the alarm cover C120 is fixedly assembled with one end of a folded cylinder C130, and the other end of the folded cylinder C130 is fixedly assembled with the outer wall of the alarm cylinder C110. The crumple bucket C130 is of a resilient crumple design that straightens when the alarm lid C120 is raised, thereby providing a warning effect.

Alarm lid C120 is inboard fixed with lifting rod C310 one end assembly, and the lifting rod C310 other end passes behind the support baffle C160 and is fixed with spacing dish C430 assembly, and spacing dish C430, lifting rod C310 can slide on the axial, and supports baffle C160 and alarm inner tube C111 assembly fixed, the cover is equipped with lifting spring C210 on the part between lifting rod C310 and alarm lid C120, the support baffle C160, and during initial state, lifting spring C210 is in compression state.

A clamping groove C431 is formed in the limiting disc C430, the clamping groove C431 is assembled with one end of a locking rod C440 in a clamping mode, the other end of the locking rod C440 penetrates through the locking groove C112 and then is assembled and fixed with the driving pin C450, a blocking ring C441 is arranged on the part, located in the locking groove C112, of the locking rod C440, a locking rod spring C460 is sleeved on the part, located between the locking groove C112 and the inner wall of the locking groove C112, of the locking rod C440, and the locking rod spring C460 is used for jacking the blocking ring C441 tightly so as to provide elastic force for the locking rod C440 to move towards the limiting;

the locking rod C440 is arranged in an unlocking groove which is arranged on an unlocking plate C420 and consists of a straight groove C421 and a chute C422, in an initial state, the driving pin C450 is assembled with the straight groove C421, one end of the unlocking plate C420 is arranged in an unlocking chute C113, the other end of the unlocking plate C420 penetrates through the machine shell 110 and then is arranged in the driving cylinder C140, the driving cylinder C140 is a hollow driving inner cylinder C142, a heat absorbing sheet C141 is arranged on the outer wall of the driving cylinder C140, a stress ring C150 is arranged on the part of the unlocking plate C420, which is arranged in the driving inner cylinder C142, a warning memory spring C220 is sleeved between the stress ring C150 and the closed end of the driving inner cylinder C142, the warning memory spring C220 extends at the temperature of 180-.

When taking place the conflagration, if electronic equipment is normal, the controller makes outside audible-visual annunciator carry out audible-visual annunciator through sending start command to outside audible-visual annunciator C410, drives inner tube C142 simultaneously and heats warning memory spring C220 for warning memory spring C220 extends, thereby drive unlocking plate C420 shifts up, and unlocking plate C420 passes through chute C422 and drives the cooperation of pin C450 and pulls locking lever C440 right, thereby makes locking lever and draw-in groove break away from. At this time, the lifting spring C210 drives the alarm cover C120 to move up by the elastic force, thereby stretching the crumple zone C130 to play a role of prompting.

Referring to fig. 16 to 22, since the wind turbine generator system needs to be stopped in time when a fire occurs during actual testing, the equipment is prevented from being burned out due to the effect of the fire. In contrast, the applicant designs a nacelle high-speed shaft brake device, the high-speed shaft 330 of the embodiment is a shaft body which is output to a generator after the speed of a slow speed shaft is regulated through a gearbox and has a high rotating speed, and the nacelle high-speed shaft brake device is used for braking the high-speed shaft, so that the wind generating set is stopped in time.

The brake device for the high-speed shaft of the engine room comprises a brake cylinder 331 fixed on a high-speed shaft 330, wherein a brake ring D140 is sleeved outside the brake cylinder 331, a brake sliding groove D141 is formed in the brake ring D140, a brake sliding block D520 is slidably mounted in the brake sliding groove D141, a drive arc groove D521 is formed in the brake sliding block D520, the drive arc groove D521 is slidably assembled with one end of a brake pin D410, the brake ring D140 is fixed in a brake shell D110, the other end of the brake pin D410 is eccentrically assembled and fixed with a brake driving disc D130, a second fixing plate D122 is fixed on the brake driving disc D130, the second fixing plate D122 is assembled and fixed with one end of a tension spring D123, the other end of the tension spring D123 is assembled and fixed with a first fixing plate D121, and the first fixing plate D121 is assembled;

the brake driving disc D130 is provided with a driving chute D131, the driving chute D131 is provided with a driving inclined surface D1311, the driving chute D131 is slidably assembled with one end of a driving rack D230, the driving rack D230 is provided with a mounting groove D231 and a rack part D232, a rotating wheel D510 is mounted in the mounting groove D231, and two ends of a rotating wheel shaft D430 penetrate through the rotating wheel D510 and are rotatably assembled with two side walls of the mounting groove D231 respectively. The design mainly reduces the friction force when the driving rack D230 and the driving inclined plane D1311 move in a matching way, so that the abrasion loss of the driving rack D230 and the driving inclined plane D1311 is reduced;

the rack parts D232 are arranged at two sides of the driving rack D230, and the rack parts D232 at two sides can be respectively meshed with the first half-tooth D241 and the second half-tooth D242 to form a gear rack transmission mechanism, the latch teeth on the first half tooth D241 and the second half tooth D242 are only half of the circumference, namely 180 degrees, the first half tooth D241 and the second half tooth D242 are respectively fixed on the first brake shaft D421 and the second brake shaft D422, a first transmission gear D251 and a second transmission gear D252 are also fixed on the first brake shaft D421 and the second brake shaft D422, the first transmission gear D251 and the second transmission gear D252 are respectively meshed with the driving gear D253 for transmission, the driving gear D253 is fixed at one end of the driving shaft D423, the other end of the driving shaft D423 penetrates through one brake side plate D221 and then is fixedly connected with an output shaft of the brake motor D310 through a coupling, the brake motor D310 may drive the driving shaft D423 to rotate forward and backward in the circumferential direction.

The first brake shaft D421 and the second brake shaft D422 are rotatably assembled with the two brake side plates D221 respectively, the two brake side plates D221 are fixedly connected through the brake stop strip D223 and the brake top plate D222, and the two brake side plates D221 are fixed on the inner wall of the shell 110 respectively;

the two brake side plates D221 and the two brake blocking strips D223 are respectively attached to four side surfaces of the driving rack D230 and can be assembled in a sliding mode.

In an initial state, the tension spring D123 is in an unstretched state, the brake slider D520 is not in contact with the brake cylinder 331, and the first transmission gear D251 is in meshing transmission with the rack portion D232.

When braking is needed, the braking motor D310 is started, the driving shaft D423 is driven to rotate positively, the driving shaft D423 drives the first transmission gear D251 and the second transmission gear D252 to rotate circumferentially through the driving gear D253 respectively, the first half gear enables the driving rack D230 to move downwards, so that the rotating wheel D510 is matched with the driving inclined plane D1311 to drive the braking driving disk D130 to rotate circumferentially, pulling force is generated on the tension spring when the braking driving disk D130 rotates, the tension spring stores elastic force, the braking pin D410 drives the braking slider D520 to slide towards the braking cylinder 331 through the driving arc groove D521 until being clamped with the braking cylinder 331, and therefore the braking effect is achieved.

When the first half tooth D241 is disengaged from the rack portion D232, the driving rack stops moving downward to reach the state shown in fig. 16-22, and at this time, the second half tooth D242 is engaged with the rack portion on the other side for transmission, so that the driving rack is driven reversely, and the driving rack gradually moves upward to be disengaged from the driving chute D131.

In the process, the tension spring drives the brake driving disk D130 to reversely return, so that the brake slider D520 is separated from the brake cylinder 331 until the next cycle is started when the first half tooth is engaged with the rack part again.

The utility model discloses a design makes brake slider D520 and a brake section of thick bamboo 331 intermittent type nature chucking, is similar to the ABS system of car to when preventing the high-speed pivoted high-speed axle of sudden chucking, the high-speed axle produces locking in order to influence braking effect.

Referring to fig. 23, the electrical protection cabinet 370 is mainly provided with important electronic components inside, which need to be ventilated and cooled in a normal state, and need to be sealed in case of fire, so as to prevent high-temperature smoke from spreading into the electrical protection cabinet 370, thereby causing damage to the internal electronic components. Through practical tests of the applicant, the reliability degree of the electronic control mode is not high, and because the high-temperature gas quickly spreads, the electronic equipment needs time to detect. For this purpose, it is necessary to design a mechanical self-sealing mechanism.

The electrical protection cabinet 370 in this embodiment is a rectangular box-shaped structure, all electronic components are installed inside the electrical protection cabinet, at least one side of the electrical protection cabinet is fixed with an air deflector E110 and a window plate E120, a penetrating inner window E121 is arranged on the window plate E120, the air deflector E110 is provided with an upper through hole E111, a lower through hole E112 and a ventilation connecting groove E113, one end of the upper through hole E111 and one end of the lower through hole E112 are respectively communicated with the ventilation connecting groove E113, and the other end of the upper through hole E111 and the other end of the lower through hole E112 are respectively communicated with the inside of the electrical protection cabinet 370 and the inner window E121, so that the inside and the outside of the electrical protection cabinet 370 are in air flow communication, the ventilation connecting groove E113 is internally provided with a hot melt adhesive (EVA hot melt adhesive), which is heated and melted at 90-100 ℃, the inner wall of the inner window E121 is hinged with one end of a window vane E310 through a second pin E412, the middle part of the window vane E310 is hinged with a window rod E, the driving cavity E142 is arranged inside the driving shell E140, a plurality of expansion pieces E141 are further fixed on the outer wall of the driving shell E140, the end parts of the window rods E130, which are arranged in the driving cavity E142, are respectively assembled and fixed with the driving head E131, the driving head E131 is assembled and fixed with one end of a window rod memory spring E220, and the other end of the window rod memory spring E220 is assembled and fixed with the closed end of the driving cavity E142;

the memory spring E220 at the top extends at 230 ℃ below 180-. And when the temperature is between 90 ℃ and 180 ℃, the air flow can heat the hot melt adhesive, and the hot melt adhesive flows to the lower through hole E112 after being melted, so that the lower through hole E112 is gradually sealed, the flow of high-temperature flue gas entering the electric protection cabinet 370 can be greatly reduced, and the internal electronic components are protected.

Preferably, the upper through hole E111 and the lower through hole E112 are not at the same height in the vertical direction. The design is mainly used for ensuring that the hot melt adhesive can separate the upper through hole E111 and the lower through hole E112. The upper via E111 is disposed higher than the lower via E112 in this embodiment.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a wind generating set's fire alarm device, its corresponds every inner chamber and installs respectively, characterized by: the warning device comprises a warning cylinder, wherein a warning inner cylinder is arranged in the warning cylinder, the top of the warning inner cylinder is sealed by a warning cover, the warning cover is fixedly assembled with one end of a fold cylinder, and the other end of the fold cylinder is fixedly assembled with the outer wall of the warning cylinder;

2. A fire alarm device as claimed in claim 1, wherein: one end of the unlocking plate is arranged in the unlocking sliding groove, the other end of the unlocking plate penetrates through the shell and then is arranged in the driving cylinder, the driving cylinder is a hollow driving inner cylinder, a heat absorbing sheet is arranged on the outer wall of the driving cylinder, a stress ring is arranged on the part, which is arranged in the driving inner cylinder, of the unlocking plate, a warning memory spring is sleeved between the stress ring and the closed end of the driving inner cylinder, and the driving cylinder is arranged in the inner cavity.

3. A fire alarm device as claimed in claim 2, wherein: the warning memory spring is stretched at 180 ℃ and 230 ℃.

4. A fire alarm device as claimed in claim 1, wherein: the alarm device also comprises an external sound-light alarm which is controlled by the controller to give out sound-light alarm.

5. A fire alarm device as claimed in claim 1, wherein: in the initial state, the lifting spring is in a compressed state.

6. A fire alarm device as claimed in claim 1, wherein: the fold cylinder is designed by elastic folds which can be straightened when the alarm cover is lifted.

7. The utility model provides a fire control unit, its is used for wind generating set to detect, put out a fire wind generating set's conflagration, characterized by: use of a fire alarm device according to any of claims 1-6.