CN113374373B - Electric inserting plate door of circulating fluidized bed boiler - Google Patents
Electric inserting plate door of circulating fluidized bed boiler Download PDFInfo
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- CN113374373B CN113374373B CN202110632134.5A CN202110632134A CN113374373B CN 113374373 B CN113374373 B CN 113374373B CN 202110632134 A CN202110632134 A CN 202110632134A CN 113374373 B CN113374373 B CN 113374373B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/57—Power-operated mechanisms for wings using fluid-pressure actuators for vertically-sliding wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses an electric inserting plate door for a circulating fluidized bed boiler, which comprises a door frame and a door body, wherein a door opening is formed in the door frame, a power device drives the door body to reciprocate on the door frame to open and close the door opening, a travel switch is arranged on the door frame, the electric inserting plate door also comprises a mechanical linkage mechanism, a power input end of the mechanical linkage mechanism is arranged on the door frame, and a power output end of the mechanical linkage mechanism is connected to the mechanical switch of the power device. According to the electric inserting plate door for the circulating fluidized bed boiler, the power input end, the mechanical linkage mechanism and the mechanical switch form a standby switch structure, when the stroke switch is triggered to output a control signal, the opening action and the closing action of the door body are detected to achieve the effect of controlling the door body to stop running in time, meanwhile, the mechanical linkage mechanism is of a mechanical structure, coal dust and the like have small influence on the mechanical linkage mechanism, and therefore the frequency of faults occurring in the opening and closing processes of the door body is reduced.
Description
Technical Field
The invention relates to the technical field of coal-fired feeding equipment, in particular to an electric inserting plate door of a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler is a high-efficiency low-pollution clean combustion device and is widely applied to the fields of power station boilers, industrial boilers, waste treatment and utilization and the like. The coal supply method comprises the steps that coal is supplied to each circulating fluidized bed boiler by a plurality of coal feeders, each coal feeder is provided with an outlet starting inserting plate door, before the coal feeders are started, the pneumatic inserting plate door is opened firstly, then the coal feeders are started to supply coal to the boiler, after the coal supply is finished, the starting inserting plate door is controlled to be closed, in the opening or closing process of the inserting plate door, whether the inserting plate door is opened or closed in place needs to be detected, the existing coal feeders detect whether the inserting plate door is opened or closed in place through travel switches and give out signal control, and therefore the inserting plate door is controlled to stop running.
The invention relates to a power plant coal mill outlet pipeline isolation door with publication number CN204961873U, which is named as 'an isolation door of a coal mill outlet pipeline' in a power plant and is invented in patent application with publication number 2016, 1, 3 and comprises a plug board, a door body sealing plate, an upper connecting flange, a lower connecting flange, a driving cylinder, a sliding rod and a shell; the interior of the shell is provided with a plug board which is matched with a door body sealing plate, the upper end and the lower end of the shell are respectively provided with an upper connecting flange and a lower connecting flange, a transmission rod of a driving cylinder is connected with the plug board, one end of the plug board is provided with a sliding rod, and a shifting plate on the sliding rod is matched with a travel switch. The door body in the invention is connected with a coal mill pipeline of a power plant through an upper connecting flange and a lower connecting flange, and the working process is as follows: when the pipeline is closed, the driving cylinder pushes the inserting plate to move forwards to be attached to the sealing seat of the door body, and the pipeline is gradually cut off until the pipeline is completely isolated; when the pipeline is opened, the driving cylinder pulls the inserting plate to move backwards to be separated from the door body sealing plate, the pipeline is gradually opened to be completely unblocked, the door switch is in place or not, and the travel switch is toggled through the shifting plate on the sliding rod to give out signal control.
In the use process of the spile door of the circulating fluidized bed boiler in the prior art, due to the fact that dust is large in the surrounding environment and is particularly moist, coal dust enters the travel switch and then adheres to the contact, the travel switch cannot move, after the opening travel or the closing travel of the spile door is in place, the travel switch cannot give out signal control, the driving unit continues to move the spile door, the spile door is easily damaged, and safe and stable operation of a unit is also seriously affected.
Disclosure of Invention
The invention aims to provide an electric inserting plate door of a circulating fluidized bed boiler so as to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an electronic picture peg door for circulating fluidized bed boiler, includes the portal and the door body, be provided with the door opening on the portal, the power device drive the door body is in reciprocating motion is in order to open and seal on the portal the door opening, be provided with travel switch on the portal, still include mechanical link gear, be provided with on the portal mechanical link gear's power input end, mechanical link gear's power take off end connect in on power device's the mechanical switch.
In the electric door inserting plate, the two opposite sides of the door opening are respectively provided with the power input end of the mechanical linkage mechanism.
According to the electric door inserting plate, the mechanical linkage mechanism comprises the trigger part, the elastic restoring part and the contact assembly which are sequentially driven, the trigger part blocks the motion stroke of the door body opening action and the motion stroke of the door body closing action, and the trigger part is the power input end.
The electric door inserting plate further comprises a secondary trigger switch, the secondary trigger switch is arranged on at least one side of the door opening, and the secondary trigger switch controls the power device to be turned on or off after being triggered.
In the electric door inserting plate, the secondary trigger switch is connected with the actuating mechanism or the power control mechanism of the power device.
The electric door inserting plate further comprises an elastic trigger switch, and the mechanical linkage mechanism, the secondary trigger switch and the elastic trigger switch are sequentially driven to trigger on the movement strokes of the door opening action and the door closing action.
In the electric door inserting plate, the elastic trigger switch is connected with the actuating mechanism of the power device.
In the electric door inserting plate, the two opposite sides of the door opening are respectively provided with the driving assembly, and the driving assembly receives the driving of the door body and sequentially triggers the mechanical linkage mechanism, the secondary trigger switch and the elastic trigger switch.
The electric door inserting plate comprises a driving assembly, a first driving piece, a second driving piece and an elastic assembly, wherein the elastic assembly is arranged between the first driving piece and the second driving piece, the first driving piece sequentially triggers the mechanical linkage mechanism and the secondary trigger switch process to be the elastic assembly force accumulation process, and the second driving piece triggers the elastic trigger switch to be the elastic assembly force release process.
In the electric door inserting plate, the two opposite sides of the door opening are also provided with the limiting mechanisms, the elastic assembly is not in the releasing process, and the limiting mechanisms are matched with the second driving piece to seal the installation cavity provided with the elastic trigger switch.
In the technical scheme, the door frame of the electric inserting plate door for the circulating fluidized bed boiler is provided with a door hole, the power device drives the door body to reciprocate on the door frame to open and close the door hole, the door frame is provided with a travel switch and a mechanical linkage mechanism, the door frame is provided with a power input end of the mechanical linkage mechanism, a power output end of the mechanical linkage mechanism is connected to the mechanical switch of the power device and is matched with the mechanical switch through the mechanical linkage mechanism, so that in the process of driving the door body to be opened or closed by the power device, the power input end and the mechanical linkage mechanism are driven after the door body reaches a preset position so as to correspondingly act on the mechanical switch, the mechanical switch outputs a control signal to the power device, the power device controls the door body to stop moving, and the door body opening action or the door body closing action of the door body is finished, therefore, the power input end, the mechanical linkage mechanism and the mechanical switch form a standby switch structure, when the stroke switch is triggered to output a control signal, the opening action and the closing action of the door body are detected to achieve the effect of controlling the door body to stop running in time, meanwhile, the mechanical linkage mechanism is of a mechanical structure, coal dust and the like have small influence on the mechanical linkage mechanism, and therefore the frequency of faults in the opening and closing processes of the door body is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural view of an electric insertion plate door for a circulating fluidized bed boiler according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a mechanical linkage mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a secondary trigger switch according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an automatic cleaning apparatus according to yet another embodiment of the present invention;
FIG. 6 is a schematic structural view of a cleaning element according to yet another embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a first driving member according to yet another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second driving member according to yet another embodiment of the present invention.
Description of reference numerals:
1. a gantry; 1.1, a door opening; 1.2, opening grooves; 2. a door body; 3. a power control device; 3.1, a cylinder; 3.2, a piston; 4. a mechanical linkage mechanism; 4.1, a trigger piece; 4.2, an elastic restoring piece; 4.3, a contact assembly; 5. a secondary trigger switch; 6. an elastic trigger switch; 7. a drive assembly; 7.1, a first driving piece; 7.2, a second driving piece; 7.3, an elastic component; 7.4, a limiting mechanism; 7.5, a starting piece; 7.6, elastic supporting parts; 8. an automatic cleaning device; 8.1, cleaning parts; 8.2, cleaning a plate; 8.3, a cleaning part; 8.4, a sliding part; 8.5, driving a motor; 8.6, a ball screw; 8.7, a screw nut; 9. and (4) a mechanical switch.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, an embodiment of the present invention provides an electric insertion plate door for a circulating fluidized bed boiler, including a door frame 1 and a door body 2, wherein the door frame 1 is provided with a door opening 1.1, a power device 3 drives the door body 2 to reciprocate on the door frame 1 to open and close the door opening 1.1, the door frame 1 is provided with a travel switch, and the electric insertion plate door further includes a mechanical linkage mechanism 4, the door frame 1 is provided with a power input end of the mechanical linkage mechanism 4, and a power output end of the mechanical linkage mechanism 4 is connected to a mechanical switch 9 of the power device 3.
Specifically, a door frame 1 is installed on a coal outlet of a coal feeder, a door opening 1.1 is arranged on the door frame 1 and used for conveying coal of the coal feeder to the interior of a boiler, a door body 2 is movably connected to the door frame 1, a power device 3 is connected to the door body 2, the power device 3 is used for driving the door body 2 to reciprocate on the door frame 1, such as a motor, an air cylinder or a hydraulic cylinder and the like to drive the door body 2 to open and close the door body 2, when the coal is required to be fed to the boiler, the power device 3 controls the door body 2 to move so as to open the door opening 1.1, which is the opening of the door body 2, after the opening of the door body 2 is finished, the coal can be fed to the boiler, after the coal is fed, the power device 3 controls the door body 2 to move so as to close the door opening 1.1, which is the closing of the door body 2, which needs to be explained here, that the end of the opening of the door body 2 indicates that the door body 2 has moved to a preset position and stopped, at the moment, the door opening 1.1 is opened to a preset range (fully opened or partially opened), the closing action of the door body 2 is finished, the door body 2 is indicated to run to a preset position and stop moving, and the door body 2 closes the door opening 1.1 at the moment.
In the embodiment provided by the invention, the travel switch and the mechanical linkage structure sequentially detect whether the opening action of the door body 2 and the closing action of the door body 2 are in place, that is, whether the door body 2 moves to a preset position, for convenience of description, the opening action of the door body 2 is divided into an opening stroke and an opening trigger stroke, the position from which the door body 2 starts to move to the position from which the travel switch can correspondingly detect or be triggered to which the travel switch can correspondingly detect or be triggered is an opening stroke, the position from which the travel switch can correspondingly detect or be triggered to which the door body 2 can trigger the mechanical linkage mechanism 4 is an opening trigger stroke, similarly, the closing action of the door body 2 is divided into a closing stroke and a closing trigger stroke, the position from which the travel switch can correspondingly detect or be triggered is a closing stroke, the position from which the travel switch can correspondingly detect or be triggered to which the door body 2 can trigger the mechanical linkage mechanism 4 is a closing stroke, when the door body 2 is opened and the door body 2 is closed, the travel switch firstly detects the opening action of the door body 2 or the closing action of the door body 2, if the travel switch detects the opening action of the door body 2 or the closing action of the door body 2, a control signal is sent to the power device 3, the power device 3 controls the door body 2 to stop moving, so that the opening action of the door body 2 or the closing action of the door body 2 is finished, the travel switch normally works, at the moment, the opening action of the door body 2 only has an opening travel, and the closing action of the door body 2 only has a closing travel; however, if the opening stroke or the closing stroke of the door 2 is finished, at this time, the stroke switch does not detect the opening action or the closing action of the door 2, that is, the stroke switch does not send a control signal to the power device 3, at this time, the power device 3 continues to control the movement of the door 2, the door 2 enters the opening triggering stroke or the closing triggering stroke, during the opening triggering stroke or the closing triggering stroke of the door 2, the door 2 drives the mechanical linkage mechanism 4, the mechanical linkage mechanism 4 moves to act on the mechanical switch 9, so that the mechanical switch 9 is switched on or off, the mechanical switch 9 outputs a control signal to the power device 3, the power device 3 controls the door 2 to stop moving, so that the opening action or the closing action of the door 2 is finished, which is the case that the stroke switch has a fault, at this time, the opening action of the door 2 includes two movement strokes of the opening stroke and the opening triggering stroke, the closing action of the door body 2 comprises a closing stroke and a closing trigger stroke.
In the embodiment provided by the invention, the power device 3 can comprise an air cylinder 3.1 mechanism, an electromagnetic valve and a control unit, wherein the air cylinder 3.1 mechanism is connected with the door body 2, the reciprocating motion of a piston 3.2 in the air cylinder 3.1 mechanism correspondingly drives the door body 2 to reciprocate on the door frame 1, and the stroke of the piston 3.2 is greater than or equal to the motion stroke of the closing motion of the door body 2 or the opening motion of the door body 2, so that the closing motion of the door body 2 or the opening motion of the door body 2 can be smoothly completed, the control unit can be a PLC (programmable logic controller) control system or a single chip microcomputer, and receives a control signal of a stroke switch or a mechanical linkage mechanism 4, so as to correspondingly control the motion of a battery valve and the air cylinder 3.1 mechanism, realize the control of the closing motion of the door body 2 or the opening motion of the door body 2, and enable the door body 2 to open or close the door opening 1.1. Alternatively, the power device 3 may have other structures, for example, the control unit, the driving motor 8.5 and the screw mechanism are combined to form the power device 3, and may also have other structures capable of controlling and driving the door body 2 to reciprocate along the gantry 1 in the prior art.
In the embodiment provided by the invention, the travel switch and the mechanical linkage mechanism 4 can be arranged at two sides of the door opening 1.1, for example, an open slot 1.2 is arranged on the door frame 1 at two sides of the door opening 1.1, the travel switch and the mechanical linkage switch are both arranged in the open slot 1.2, for example, the travel switch is positioned at the notch position of the open slot 1.2, and the power input end of the mechanical linkage switch is positioned at the groove bottom position of the open slot 1.2, so that the opening travel, the opening triggering travel, the closing travel and the closing triggering travel can be realized. Alternatively, the travel switch and the mechanical linkage 4 may be arranged at other positions on the gantry 1. The power input end can be a driving piece fixedly connected to the door body 2, such as a wedge block, a rod piece and the like, the driving piece moves along with the door body 2 and can trigger the mechanical linkage switch, and when the opening trigger stroke or the closing trigger stroke of the door body 2 is finished, the driving piece triggers the mechanical linkage mechanism 4 and the mechanical switch 9 to send control signals to the power device 3; in the preferred embodiment, the mechanical linkage mechanism 4 is driven by squeezing the power input end by the door body itself, for example, the edge of the door body squeezes the power input end of the mechanical linkage mechanism 4 to drive the latter, further, the power input end can also be a driving structure which moves along with the movement of the door body 2, the driving structure can trigger the mechanical linkage switch along with the movement of the door body 2, when the opening trigger stroke or the closing trigger stroke of the door body 2 is finished, the driving structure triggers the mechanical linkage mechanism 4 and the mechanical switch 9 to send control signals to the power device 3, further, the power input end can also be a blocking structure which blocks the opening trigger stroke and the closing trigger stroke of the door body 2, when the opening stroke or the closing stroke of the door body 2 is finished, the door body 2 drives the blocking structure to move along with the door body 2, the blocking structure thus enables the mechanical ganged switch and the mechanical switch 9 to be triggered, the principle of which is the same as the driving structure and the driving member, which will not be described in detail herein.
The embodiment of the invention provides an electric inserting plate door for a circulating fluidized bed boiler, a door opening 1.1 is arranged on a door frame 1, a power device 3 drives a door body 2 to reciprocate on the door frame 1 to open and close the door opening 1.1, a travel switch and a mechanical linkage mechanism 4 are arranged on the door frame 1, a power input end of the mechanical linkage mechanism 4 is arranged on the door frame 1, a power output end of the mechanical linkage mechanism 4 is connected to a mechanical switch 9 of the power device 3, the mechanical linkage mechanism 4 and the mechanical switch 9 are mutually matched, so that in the opening or closing process of driving the door body 2 by the power device 3, the power input end and the mechanical linkage mechanism 4 are driven after the door body 2 reaches a preset position, the mechanical switch 9 correspondingly acts on the mechanical switch 9, the mechanical switch 9 outputs a control signal to the power device 3, the power device 3 controls the door body 2 to stop moving, and the opening action of the door body 2 or the closing action of the door body 2 is finished, therefore, the power input end, the mechanical linkage mechanism 4 and the mechanical switch 9 form a standby switch structure, when the stroke switch is triggered to output a control signal, the opening action and the closing action of the door body 2 are detected to achieve the effect of controlling the door body 2 to stop running in time, meanwhile, the mechanical linkage mechanism 4 is of a mechanical structure, coal dust and the like have small influence on the mechanical linkage mechanism, and therefore the frequency of faults in the opening and closing processes of the door body 2 is reduced.
In the embodiment provided by the invention, preferably, two opposite sides of the door opening 1.1 are respectively provided with a power input end of the mechanical linkage mechanism 4. The two power input ends respectively correspond to the opening trigger stroke of the door body 2 and the closing trigger stroke of the door body 2, namely one power input end is arranged on the opening trigger stroke of the door body 2, when the opening stroke of the door body 2 is finished, the stroke switch does not transmit a control signal, the door body 2 continues to act and enters the opening trigger stroke, then the power input end triggers the mechanical linkage switch to enable the mechanical linkage mechanism 4 to send the control signal to the power device 3, and the power device 3 controls the opening action of the door body 2 to be finished; the other power input end is arranged on the closing trigger stroke of the door body 2, when the closing stroke of the door body 2 is finished, the travel switch does not transmit a control signal, the opening action of the door body 2 enters the closing trigger stroke, at the moment, the power input end triggers the mechanical linkage switch to enable the mechanical linkage mechanism 4 to send a control signal to the power device 3, and the power device 3 controls the closing action of the door body 2 to be finished.
In the embodiment provided by the invention, preferably, the mechanical linkage mechanism 4 comprises a trigger 4.1, an elastic restoring piece 4.2 and a contact assembly 4.3 which are sequentially transmitted, the trigger 4.1 blocks the motion stroke of the opening action of the door body 2 or the closing action of the door body 2, and the trigger 4.1 is a power input end. In the opening triggering stroke of the opening action of the door body 2 or the closing triggering stroke of the closing action of the door body 2, the triggering piece 4.1 receives the triggering of the door body 2 to move, the triggering piece 4.1 moves to drive the contact assembly 4.3 to move to act on the mechanical switch 9, so that the mechanical switch 9 is switched on or switched off, the elastic restoring piece 4.2 is pressed against the elastic restoring piece 4.2 in the process that the triggering piece 4.1 drives the contact assembly 4.3, so that the elastic restoring piece 4.2 has elastic force, after the triggering piece 4.1 receives the driving disappearance of the door body 2, the triggering piece 4.1 and the contact assembly 4.3 can restore to the initial positions under the action of the elastic restoring piece 4.2, the mechanical switch 9 can have an elastic restoring function, and when the triggering piece 4.1 and the contact assembly 4.3 restore to the initial positions, the mechanical switch 9 can also restore to the initial positions.
In this embodiment, the mechanical linkage mechanism 4 may use a mechanical transmission structure in the prior art, a motion stroke of the trigger 4.1 is driven by a motion stroke of the door body 2, which is generally a linear reciprocating stroke, and the contact assembly 4.3 is used for triggering a mechanical switch, where the mechanical switch in the prior art is either a reciprocating stroke or a swinging stroke, and the corresponding mechanical linkage mechanism 4 is essentially a transmission mechanism for converting a linear reciprocating motion into a linear reciprocating motion, or a transmission mechanism for converting a linear reciprocating motion into a rotating motion, both of which are common mechanical transmission mechanisms, such as a link mechanism, a ball screw, a wedge transmission, etc., and when the stroke of the input end and the stroke of the output end are determined, it is obvious for those skilled in the art to directly select a corresponding transmission structure for implementation. Wherein, the elastic recovery part 4.2 is used for recovering the original shape after the movement, and the elastic part is used for recovering the original shape and is the prior art, which is not described in detail.
In the embodiment provided by the invention, preferably, the trigger 4.1 can directly receive the trigger of the door body 2, or a transmission mechanism is arranged between the trigger 4.1 and the door body 2, the door body 2 moves to act on the trigger 4.1 through the transmission mechanism to trigger the trigger 4.1, the elastic restoring member 4.2 can be a compression spring or a torsion spring, the contact assembly 4.3 and the mechanical switch 9 are correspondingly arranged, the contact assembly 4.3 can be a structure capable of driving the mechanical switch 9 to close or open, the contact assembly 4.3 can also form a trigger structure capable of transmitting a control signal to the power device 3 together with the mechanical switch 9, for example, the contact assembly 4.3 comprises a moving contact and a transmission member, the moving contact is connected with the trigger 4.1 through the transmission member, the mechanical switch 9 comprises a static contact, when the trigger 4.1 receives the drive of the door body 2 to move, the trigger piece 4.1 can make the moving contact and the static contact be connected through the driving medium to switch on, thereby carry control signal to the power device 3, the power device 3 control door body 2 stops the operation, after the trigger piece 4.1 receives the drive disappearance of door body 2, at this moment under the effect of elastic recovery piece 4.2, contact subassembly 4.3 and trigger piece 4.1 resume to initial position, the moving contact is separated with the static contact phase so that the circuit breaks.
In another embodiment provided by the present invention, preferably, the present invention further comprises a secondary trigger switch 5, at least one side of the door opening 1.1 is provided with the secondary trigger switch 5, and the secondary trigger switch 5 controls the power device 3 to be turned on or off after being triggered. The secondary trigger switch 5 and the mechanical linkage mechanism 4 are sequentially and correspondingly arranged, in the opening trigger stroke of the door body 2 or the closing trigger stroke of the door body 2, the mechanical linkage mechanism 4 is triggered at first, when the mechanical linkage mechanism 4 is not triggered, the secondary trigger switch 5 receives the trigger of the door body 2 so as to transmit a control signal to the power device 3, so that the power device 3 is opened or closed, the opening or closing of the power device 3 corresponds to the stop operation of the control door body 2, for example, the stop operation of the door body 2 can be controlled by controlling the limiting mechanism 7.4 and the like after the power device 3 is opened, similarly, the secondary trigger switch 5 can directly receive the trigger of the door body 2, a transmission mechanism can also be arranged between the secondary trigger switch 5 and the door body 2, and the motion of the door body 2 acts on the secondary trigger switch 5 through the transmission mechanism so as to realize the trigger. The secondary trigger switch 5 can also be a travel switch, such as various sensors, and has the effect that the sensing device and the mechanical device form a group of trigger devices, and the two trigger devices of different types can avoid one error, such as the sensing device is easily blocked by pulverized coal, and the mechanical device can be corroded.
In another embodiment of the present invention, further, the secondary trigger switch 5 is connected to an actuator or a power control mechanism of the power device 3. The power control mechanism can be a single chip microcomputer or a PLC control system, the actuating mechanism can be a cylinder 3.1 assembly and an electromagnetic valve, a piston 3.2 of the cylinder 3.1 assembly is connected with the door body 2, the electromagnetic valve receives control of the power control mechanism to control movement of the piston 3.2, when the secondary trigger switch 5 is connected with the power control mechanism, the secondary trigger switch 5 is triggered to transmit a control signal to the power control mechanism, the power control mechanism transmits the control signal to control the electromagnetic valve, so that the piston 3.2 moves to drive the door body 2, when the secondary trigger switch 5 is connected with the actuating mechanism, the secondary trigger switch 5 is triggered to transmit the control signal to the electromagnetic valve, and the electromagnetic valve directly controls movement of the piston 3.2 to drive the door body 2.
In another embodiment of the present invention, it is preferable that the door further includes an elastic force trigger switch 6, and the mechanical linkage mechanism 4, the secondary trigger switch 5, and the elastic force trigger switch 6 are sequentially driven to trigger on the movement strokes of the opening motion of the door 2 and the closing motion of the door 2. In the opening trigger stroke of the door body 2 or the closing trigger stroke of the door body 2, the mechanical linkage mechanism 4 is triggered firstly, and then the secondary trigger switch 5 is triggered, when the mechanical linkage mechanism 4 and the secondary trigger switch 5 are not triggered, the elastic trigger switch 6 receives the trigger of the door body 2 so as to transmit a control signal to the power device 3, so that the door body 2 stops running.
In still another embodiment of the present invention, preferably, the elastic force trigger switch 6 is connected to an actuator of the power device 3, for example, when the actuator is a cylinder 3.1 assembly and an electromagnetic valve, after the elastic force trigger switch 6 is triggered, a control signal is directly transmitted to the electromagnetic valve, and the electromagnetic valve directly controls the piston 3.2 to move to drive the door 2, so that when a problem occurs in the power control mechanism of the power device 3, the door 2 can still be controlled. In order to increase the running safety performance of the power device 3, the connection relationship between the mechanical linkage mechanism 4, the secondary trigger switch 5 and the elastic trigger switch 6 and the power device 3 is as follows: the mechanical switch 9 is connected with the power control mechanism, namely when the mechanical linkage mechanism 4 is driven to trigger, a control signal is transmitted to the power control mechanism, the actuating mechanism is controlled by the power control mechanism to realize the control of the running of the door body 2, the secondary trigger switch 5 and the elastic trigger switch 6 are both connected with the actuating mechanism, the secondary trigger switch 5 and the elastic trigger switch 6 are both used as standby switches and only work under the condition that the stroke switch and the mechanical linkage mechanism 4 cannot be triggered, the stop running faults of the door body 2 comprise faults of the stroke switch and the mechanical linkage mechanism 4 and faults of the power control mechanism, so when the secondary trigger switch 5 and the elastic trigger switch 6 are triggered, the control signal is directly transmitted to the actuating mechanism, the actuating mechanism controls the running of the door body 2, and the running safety of the power device 3 is improved, the failure rate of the operation of the door body 2 is reduced.
In another embodiment provided by the invention, preferably, two opposite sides of the door opening 1.1 are respectively provided with a driving component 7, and the driving components 7 receive the driving of the door body 2 to sequentially trigger the mechanical linkage mechanism 4, the secondary trigger switch 5 and the elastic trigger switch 6; the driving assembly 7 can directly receive the driving of the door body 2 to move, if the driving assembly 7 stops on the opening triggering stroke and the closing triggering stroke of the door body 2, so in the opening triggering stroke and the closing triggering stroke, the door body 2 directly drives the driving assembly 7 to move so as to sequentially trigger the mechanical linkage mechanism 4, the secondary triggering switch 5 and the elastic triggering switch 6, the driving assembly 7 can also receive the driving of the door body 2 through the transmission mechanism, for example, on the opening triggering stroke and the closing triggering stroke of the door body 2, the door body 2 enables the driving assembly 7 to move through the connecting rod mechanism so as to realize the triggering of the mechanical linkage mechanism 4, the secondary triggering switch 5 and the elastic triggering switch 6.
In still another embodiment provided by the present invention, preferably, the driving component 7 includes a first driving component 7.1, a second driving component 7.2 and an elastic component 7.3 disposed between the first driving component 7.1 and the second driving component 7.2, a process of sequentially triggering the mechanical linkage mechanism 4 and the secondary trigger switch 5 at the first driving component 7.1 is a compression and force accumulation process of the elastic component 7.3, and a process of triggering the elastic trigger switch 6 at the second driving component 7.2 is a force release process of the elastic component 7.3; an open slot 1.2 is arranged on the door frame 1 at two sides of the door opening 1.1, a first driving piece 7.1, a second driving piece 7.2 and an elastic component 7.3 are all arranged in the open slot 1.2, the first driving piece 7.1 and the second driving piece 7.2 are all limited in the open slot 1.2 in a sliding way, a mechanical linkage mechanism 4, a secondary trigger switch 5 and an elastic trigger switch 6 are all arranged in the open slot 1.2, a containing cavity capable of installing the mechanical linkage mechanism 4 and the secondary trigger switch 5 is arranged on the side wall of the open slot 1.2, the mechanical linkage mechanism 4 and the secondary trigger switch 5 are sequentially arranged on the movement stroke of the first driving piece 7.1, the elastic trigger switch 6 is arranged at the bottom of the open slot 1.2, the first driving piece 7.1 is positioned at one side close to the open slot 1.2, the second driving piece 7.2 is positioned at one side far away from the open slot 1.2, the elastic component 7.3 is arranged between the first driving piece 7.1 and the second driving piece 7.2, a limiting mechanism 7.4 is arranged in the open slot 1.2, the limiting mechanism 7.4 is clamped with the second driving piece 7.2 in an initial state, so as to prevent the second driving piece 7.2 from moving to one side of the slot bottom, a starting piece 7.5 is arranged on the first driving piece 7.1, the starting piece 7.5 is arranged corresponding to the limiting mechanism 7.4, an elastic supporting piece 7.6 is also arranged between the second driving piece 7.2 and the slot bottom of the open slot 1.2, the elastic coefficient of the elastic supporting piece 7.6 is far smaller than that of the elastic component 7.3, therefore, in the opening triggering stroke and the closing triggering stroke of the door body 2, the door body 2 firstly drives the first driving piece 7.1, so that the first driving piece 7.1 moves along the open slot 1.2, the door body 2 can directly drive the first driving piece 7.1, the door body 2 can also drive the first driving piece 7.1 through a transmission mechanism or other structures, and in the movement stroke of the first driving piece 7.1, the mechanical linkage mechanism 4 and the secondary triggering switch 5 are sequentially triggered, in the process, the first driving element 7.1 presses the elastic element 7.3 to enable the elastic element 7.3 to have elastic force, if the mechanical linkage mechanism 4 and the secondary trigger switch 5 are not triggered, at this time, the second driving element 7.2 continues to move, the starting element 7.5 presses the limiting mechanism 7.4 to enable the limiting mechanism 7.4 to release the limiting on the second driving element 7.2, because the elastic element 7.3 has elastic force, under the action of the elastic element 7.3, the second driving element 7.2 rapidly moves towards the bottom of the open slot 1.2 to trigger the elastic trigger switch 6, so that the elastic trigger switch 6 is triggered instantly, the triggering time is short, the service life of the elastic trigger switch 6 is effectively prolonged, in the process that the elastic trigger switch 6 is triggered, the second driving element 7.2 presses the elastic support element 7.6, but the elastic coefficient of the elastic support element 7.6 is far smaller than that of the elastic element 7.3, thus not affecting the movement of the second driver 7.2, the resilient support 7.6 is arranged such that, when the pressure on the second driver 7.2 is removed, the resilient support 7.6 is able to support the second driver 7.2 to return to the initial position.
In still another embodiment of the present invention, preferably, two opposite sides of the door opening 1.1 are further provided with a limiting mechanism 7.4, the elastic component 7.3 is in a non-releasing process, the limiting mechanism 7.4 is matched with the second driving component 7.2 to seal the installation cavity provided with the elastic trigger switch 6, the limiting mechanism 7.4 can be a limiting plate or a limiting sheet, an opening cavity capable of accommodating the limiting mechanism 7.4 can be arranged on the side wall of the opening groove 1.2, the limiting mechanism 7.4 is pressed by the actuating component 7.5 and then contracted into the opening cavity, for example, the limiting mechanism 7.4 is a supporting block with a wedge-shaped end portion, which normally supports the second driving component 7.2, the actuating component 7.5 is a rod with an inclined plane at an end portion, when the first driving component 7.1 moves down, when the mechanical linkage mechanism 4 and the second trigger switch 5 both pass through the first driving component 7.1 but do not stop, the actuating component 7.5 passes through the through hole on the second driving component 7.2 to contact the supporting block, the supporting block and the rod piece are in wedge-shaped fit, the rod piece extrudes the supporting block to enable the supporting block to shrink into the opening cavity, at the moment, the second driving piece 7.2 loses support, and the elastic supporting piece 7.6 starts to be extruded. The embodiment has the advantages that firstly, a first driving part 7.1 is arranged, for example, a closed end plate is arranged to integrally close an open slot 1.2 at the end part of a door opening, so that the probability of failure caused by the fact that each triggering mechanism is contaminated by pulverized coal is greatly reduced; the two elastic parts are integrally arranged to realize elastic support of the door body, so that the door body is prevented from excessively extruding the door frame 1; the double-sealing structure is provided with the double-sealing structure which passes through the second driving part 7.2 and the first driving part 7.1, even if the mechanical linkage mechanism 4 and the secondary trigger switch 5 are simultaneously blocked or contaminated by pulverized coal to cause failure, the double-sealing elastic trigger switch 6 is provided, and the elastic trigger switch 6 is almost completely lost. And the spring-activated switch 6 is normally not activated due to the stop mechanism 7.4 and the actuator 7.5.
Thereby stop gear 7.4 blocks with second driving piece 7.2 looks block seals the installation cavity this moment, so effectively avoids debris such as coal to enter into the installation cavity, thereby also can avoid debris to cover or bind to elasticity trigger switch 6 on thereby break down.
In still another embodiment of the present invention, preferably, the present invention further comprises an automatic cleaning device 8 disposed at two sides of the door opening 1.1, the automatic cleaning device 8 includes a cleaning member 8.1 and a driving mechanism, the driving mechanism can drive the cleaning member 8.1 to reciprocate to clean the sundries at two sides of the door opening 1.1, the driving mechanism includes a driving motor 8.5, a ball screw 8.6 and a nut 8.7, one side of the open slot 1.2 is provided with a strip-shaped slot parallel to the open slot 1.2, the ball screw 8.6 is disposed in the strip-shaped slot, the cleaning member 8.1 includes a cleaning plate 8.2 and a cleaning portion 8.3 disposed on the cleaning plate 8.2, the cleaning plate 8.2 is connected with the nut 8.7, so that the driving motor 8.5 drives the ball screw 8.6 to rotate to make the nut 8.7 and the cleaning plate 8.2 reciprocate along the 1.2, the cleaning plate 8.2 moves to clean the sundries in the open slot 1.2, and the sundries at two sides of the open slot 1.2, and the output port for reciprocating movement, so be convenient for export the debris of clearance, simultaneously, for make clearance plate 8.2 appear not squinting when along open slot 1.2 reciprocating motion, both sides at clearance plate 8.2 all are provided with slider 8.4, slider 8.4 is used for the direction, slider 8.4 sliding connection is in open slot 1.2's both sides, slider 8.4 can be the movable pulley, the sliding block, open slot 1.2's both sides can be provided with and supply slider 8.4 to carry out gliding sliding tray, so slider 8.4 slip restriction is in the sliding tray, thereby make clearance plate 8.2 can not appear squinting along open slot 1.2 reciprocating motion in-process.
Further, in an optional embodiment, one end of the cleaning plate 8.2 is provided with a radial extending portion, and the radial extending portion is disposed on a movement stroke of the door body 2, for example, the radial extending portion is directly connected to the door body, and at this time, the driving motor 8.5 is not disposed, but the door body 2 is used for driving the cleaning plate to move, so as to realize driving.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (9)
1. An electric inserting plate door for a circulating fluidized bed boiler comprises a door frame and a door body, wherein the door frame is provided with a door opening, a power device drives the door body to reciprocate on the door frame to open and close the door opening, the door frame is provided with a travel switch, and the electric inserting plate door is characterized in that,
the gantry is provided with a power input end of the mechanical linkage mechanism, and a power output end of the mechanical linkage mechanism is connected to a mechanical switch of the power device;
the mechanical linkage mechanism comprises a trigger part, an elastic restoring part and a contact assembly which are sequentially transmitted, wherein the trigger part blocks the motion stroke of the door opening action and the door closing action, and the trigger part is the power input end;
the mechanical linkage mechanism moves to act on the mechanical switch, so that the mechanical switch is switched on or switched off, and the mechanical switch outputs a control signal to the power device.
2. The power strip door of claim 1, wherein said door opening is provided with a power input for said mechanical linkage on each of opposite sides of said door opening.
3. The power-driven flashboard door of claim 1, further comprising a secondary trigger switch, wherein the secondary trigger switch is arranged on at least one side of the door opening, and the secondary trigger switch controls the power device to be turned on or off after being triggered.
4. The power paddle door of claim 3, wherein the secondary trigger switch is coupled to an actuator or power control mechanism of the power plant.
5. The electric flashboard door according to claim 3, further comprising an elastic force trigger switch, wherein the mechanical linkage mechanism, the secondary trigger switch and the elastic force trigger switch are sequentially driven to trigger on the motion strokes of the door body opening action and the door body closing action.
6. The power paddle door of claim 5, wherein the spring-activated switch is coupled to an actuator of the power unit.
7. The electric flashboard door according to claim 1, wherein two opposite sides of the door opening are respectively provided with a driving component, and the driving components receive the driving of the door body to sequentially trigger the mechanical linkage mechanism, the secondary trigger switch and the elastic trigger switch.
8. The power strip door as claimed in claim 7, wherein the driving assembly comprises a first driving member, a second driving member and a resilient member disposed between the first driving member and the second driving member, wherein the process of sequentially triggering the mechanical linkage mechanism and the secondary trigger switch by the first driving member is a power-up process of the resilient member, and the process of triggering the resilient trigger switch by the second driving member is a power-down process of the resilient member.
9. The power-driven flashboard door as claimed in claim 8, wherein two opposite sides of the door opening are further provided with a limiting mechanism, the elastic component is in a non-releasing process, and the limiting mechanism is matched with the second driving piece to seal a mounting cavity provided with the elastic trigger switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632134.5A CN113374373B (en) | 2021-06-07 | 2021-06-07 | Electric inserting plate door of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632134.5A CN113374373B (en) | 2021-06-07 | 2021-06-07 | Electric inserting plate door of circulating fluidized bed boiler |
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| Publication Number | Publication Date |
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| CN113374373A CN113374373A (en) | 2021-09-10 |
| CN113374373B true CN113374373B (en) | 2022-04-12 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386197Y (en) * | 1999-07-02 | 2000-07-05 | 刘全文 | Control device for intercepting catcher in incline hoist |
| US20020144467A1 (en) * | 2001-03-12 | 2002-10-10 | Teich Rudor M. | Supervision of door and gate edge sensors |
| CN101834071B (en) * | 2010-04-26 | 2012-01-04 | 沈阳宝通门业有限公司 | Special safety monitoring intelligent switch for industrial special door |
| CN202007614U (en) * | 2011-03-29 | 2011-10-12 | 李金金 | Escape window of passenger car |
| JP2014088681A (en) * | 2012-10-29 | 2014-05-15 | Nikko Co | Automatic opening and closing door |
| DE102015113427A1 (en) * | 2015-08-14 | 2017-02-16 | Form Orange Produktentwicklung | Closet, in particular kitchen closet |
| CN205495793U (en) * | 2016-03-16 | 2016-08-24 | 酒泉钢铁(集团)有限责任公司 | Sediment pneumatic door limit structure is arranged to coal pulverizer |
| CN109458082A (en) * | 2018-12-10 | 2019-03-12 | 连云港市华能电力辅机有限公司 | A kind of power loss vertical insertion plate door of fast open form automatically |
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