Emergency control device for single-blade lifting appliance

Abstract

The utility model discloses an emergency control device for a single-blade lifting appliance. The emergency control device comprises an emergency battery pack B2, a main switch, a remote controller receiver, a charger and a contactor KM11, when the single-blade lifting appliance control system works normally, the generator can charge the emergency battery pack B2 through the charger; the emergency battery pack B2 only supplies power to the remote controller receiver during normal use; when a single-blade lifting appliance control system breaks down, the single-blade lifting appliance emergency control device directly controls the contactor KM11 to conduct unhooking, pressure relief of the pressing plate and starting of the generator to work without a PLC, and the lifting appliance and the blade can be separated to complete lifting work.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wind power hoisting field, concretely relates to an emergency control device for single blade sling. BACKGROUND

[0002] The wind power industry is booming, and single blade slings have become the main equipment for blade installation with the wide application of high-power generators. The existing single blade sling is powered by a generator (electric hoist + hydraulic station + charger G1), a control power supply (PLC + unhooker + relay + contactor, etc.), and a signal power supply. The generator provides continuous power supply during blade hoisting. The standby power supply (battery B1) can supply power to the control power supply (PLC + unhooker + relay + contactor, etc.) and the signal power supply through the redundancy module DRDN after the generator stops. The unhooking, pressure plate pressure relief, and generator starting operation can be performed through the PLC (the battery can only maintain for about 1 hour due to the large power consumption in this state). In actual application, the following faults occur multiple times: ① the problem occurs when the blade is not completely installed, the blade cannot be removed, and the sling cannot be detached, resulting in the sling staying in the air for a long time, the generator runs out of fuel, and the battery runs out of power, making the sling unable to work; ② the control system PLC cannot work due to short circuit caused by water ingress, collision, etc., so the sling cannot be operated. In view of the above faults, the economic loss is huge due to the removal of the blade and the repositioning of the battery B1 or the refueling or restart of the generator. The operation lacks protection measures, and the personnel safety risk is great. CONTENT OF THE UTILITY MODEL

[0003] To solve the above problems, the utility model provides an emergency control device for single blade sling. The device is composed of an emergency battery pack, a remote control, and a contactor to form an emergency control circuit. The device does not use PLC and directly controls the contactor. In the case of the above faults, the emergency battery pack can be put into operation through the emergency remote control to unhook, release the pressure plate, and start the generator operation, so that the sling and the blade can be separated to complete the hoisting operation.

[0004] To achieve the above purpose, the utility model provides an emergency control device for single blade sling, which comprises an emergency battery pack B2, a main switch Q8, a protection switch Q15, an emergency remote control, a charger, and a contactor KM11.

[0005] When the single blade sling control system is working normally, the generator can charge the emergency battery pack B2 through the charger. When the emergency battery pack B2 is normally used, only the emergency remote control is powered. When the single blade sling control system fails, the single blade sling emergency control device does not use PLC and directly controls the contactor KM11 to unhook, release the pressure plate, and start the generator operation, so that the sling and the blade can be separated to complete the hoisting operation.

[0006] Preferably, the emergency battery pack B2 is model VT24-12 24V 20AH.

[0007] Preferably, the main switch Q8 is model A9F38210+A9A26924, used as an overcurrent protection element in the circuit;

[0008] The protective switch Q15, model number A9N22077+A9A26924, is used as an overcurrent protection element in the circuit.

[0009] Preferably, the contactor KM11 is model LC1D18BDC, used to control whether the emergency power supply is activated.

[0010] Preferably, the emergency remote control includes: a remote control transmitter and a remote control receiver.

[0011] Preferably, the charger model is PB-360P-24.

[0012] Preferably, the emergency control device further includes: a power meter DL2 displaying the power level, model BG1-A24.

[0013] Preferably, the emergency control device further includes: a voltage transmitter Dv2 for detecting the battery pack voltage, model CE-VZ01-54MS1.

[0014] Compared with the prior art, the present invention has the following advantages and technical effects:

[0015] This invention relates to an emergency control device for a single-blade lifting sling. It incorporates a 20AH battery pack, B2. Under normal system conditions, battery pack B2 only charges and powers the remote control receiver, resulting in minimal power loss and an overall standby time exceeding 72 hours. When the main control system malfunctions and becomes inoperable, the single-blade lifting sling control device, without relying on the PLC, directly controls the contactor to disengage the hook, release pressure on the pressure plate, and start the generator, allowing the lifting sling and blade to detach and complete the lifting operation. This invention solves the problem of existing single-blade lifting slings requiring manual operation at heights of up to 100 meters when the main system or PLC fails. The single-blade lifting sling emergency control device is simple in structure, reliable in operation, convenient and quick, and reduces the dangers of manual operation. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of the original single-blade lifting device control system;

[0018] Figure 2 This is a schematic diagram of an emergency control device for a single-blade lifting device according to the present invention.

[0019] Attached diagram description: 1L1: AC 220V phase line, N1: AC 220V neutral line, Q7: Air circuit breaker, model: A9F38210+A9A26924, function: overcurrent protection element in the circuit;

[0020] Q8: Air circuit breaker model: A9F38210+A9A26924, function: overcurrent protection element in the circuit; Q13: Air circuit breaker model: A9N22077+A9A26924, function: overcurrent protection element in the circuit; Q15: Air circuit breaker model: A9N22077+A9A26924, function: overcurrent protection element in the circuit; Q14: Disconnecting switch model: 56SW350, function: overcurrent protection element in the circuit; KM11: Contactor model: LC1D18BDC, function: controls whether the emergency power supply is activated; B1: Battery pack 1 model: VT24-12 24V 38AH, function: provides backup power to the main circuit; B2: Battery pack 2 model: VT24-12 24V20AH: Provides power for emergency control; DL1: Power meter 1, model: BG1-A24: Detects battery power; DL2: Power meter 2, model: BG1-A24: Detects battery power; DV1: Voltage transmitter, model: CE-VZ01-54MS1: Transmits the detected battery voltage value to the control system; DV2: Voltage transmitter, model: CE-VZ01-54MS1: Transmits the detected battery voltage value to the control system; G1: Battery charger, model: PB -360P-24 Function: Charges the battery pack; G2: DC power module model: DDR-240B-24 Function: DC voltage regulator module; G4: Voltage conversion module model: SDR-480 / 24 Function: Converts AC 220V voltage to DC 24V voltage; G5 Battery charger model: PB-360P-24 Function: Charges the battery pack; DRDN: DC power redundancy module model: DRDN-20 / 24 Function: Connects to two different power sources, and outputs a stable power source after adjustment. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0024] Example

[0025] This utility model provides an emergency control device for a single-blade lifting device, including: an emergency battery pack B2, a main switch Q8, a protective switch Q15, an emergency remote controller, a charger, and a contactor KM11;

[0026] When the single-blade spreader control system is working normally, the generator can charge the emergency battery pack B2 through the charger; when the emergency battery pack B2 is in normal use, it only provides power to the emergency remote control; when the single-blade spreader control system fails, the single-blade spreader emergency control device directly controls the contactor KM11 to disengage, depressurize the pressure plate, and start the generator without going through the PLC, so that the spreader and the blade can be separated to complete the lifting operation.

[0027] In this embodiment, the emergency battery pack B2 is model VT24-12 24V 20AH.

[0028] In this embodiment, the main switch Q8 is model A9F38210+A9A26924, and is used as an overcurrent protection element in the circuit;

[0029] The protective switch Q15, model number A9N22077+A9A26924, is used as an overcurrent protection element in the circuit.

[0030] In this embodiment, the contactor KM11, model LC1D18BDC, is used to control whether the emergency power supply is activated.

[0031] In this embodiment, the emergency remote control includes a remote control transmitter and a remote control receiver.

[0032] In this embodiment, the charger model is PB-360P-24.

[0033] In this embodiment, the emergency control device further includes a power meter DL2, model BG1-A24, which displays the power level.

[0034] In this embodiment, the emergency control device further includes a voltage transmitter Dv2 for detecting the battery pack voltage, model CE-VZ01-54MS1.

[0035] Specifically, the original single-blade lifting device control system was equipped with a 38AH battery pack B1. When the generator was engaged, battery pack B1 was charged via battery charger G1 to 1L1 and N1. Simultaneously, when the generator was engaged, the power supplied to 1L1 and N1 was converted to 24V DC power via DC power module G2. The 24V DC power from battery pack B1 and power module G2 was then regulated by DC power redundancy module DRDN, outputting one stable power supply to the unhooking motor and the other to the DC voltage regulator module G2 to ensure the normal operation of the single-blade lifting device control system. Figure 1 As shown, when the generator stops, with the disconnecting switch Q14 closed, the battery pack B1 supplies power to the uncoupled motor and control system through the DC power redundancy module DRDN. Since the control system consumes a large amount of power, the battery can only maintain power for about 1 hour.

[0036] like Figure 2As shown, this utility model adds a 20AH battery pack B2, an air switch Q8 for protection circuits, an air switch Q15 for protection circuits, a power meter DL2 to display the power level, a voltage transmitter Dv2 to detect the battery pack voltage, a contactor KM11 for power supply control in the control circuit, and a backup remote control receiver for controlling the decoupling device (the remote control receiver receives signals from the remote control transmitter and then uses an internal relay to control the decoupling device). During normal use, when the generator is engaged, 1L1 and N1 charge the battery pack B2 via battery charger G5. The battery voltage of B2 is transmitted to the control system via voltage transmitter DV2 (the control system transmits the signal to the remote control receiver display screen after signal conversion) for observation. When the generator stops and the battery B1 is depleted, the operator can determine whether to activate the emergency control device. If not activated, the battery pack only supplies power to the backup remote control receiver. Since the backup remote control receiver consumes only about 5W, the overall standby time exceeds 72 hours. If the emergency control device is activated, the remote control is operated to close contactor KM11, and the battery pack B2 supplies power to the emergency control system and the unhooking motor to perform the unhooking operation and complete the single-blade hoisting operation.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An emergency control device for use in a single-blade lifting device, characterized in that, include: Emergency battery pack B2, main switch Q8, protective switch Q15, emergency remote control, charger and contactor KM11; When the single-blade spreader control system is working normally, the generator can charge the emergency battery pack B2 through the charger; when the emergency battery pack B2 is in normal use, it only provides power to the emergency remote control; when the single-blade spreader control system fails, the single-blade spreader emergency control device directly controls the contactor KM11 to disengage, depressurize the pressure plate, and start the generator without going through the PLC, so that the spreader and the blade can be separated to complete the lifting operation.

2. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The emergency battery pack B2 is model VT24-12 24V 20AH.

3. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The main switch Q8, model number A9F38210+A9A26924, is used as an overcurrent protection component in the circuit. The protective switch Q15, model number A9N22077+A9A26924, is used as an overcurrent protection element in the circuit.

4. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The contactor KM11, model LC1D18BDC, is used to control whether the emergency power supply is activated.

5. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, An emergency remote control consists of a remote control transmitter and a remote control receiver.

6. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The charger model is: PB-360P-24.

7. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The emergency control device also includes a power meter DL2, model BG1-A24, which displays the power level.

8. The emergency control device for a single-blade lifting device according to claim 1, characterized in that, The emergency control device also includes a voltage transmitter Dv2, model CE-VZ01-54MS1, for detecting the battery pack voltage.

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