Intelligent control system for fly ash and aloe residues in power plant

Abstract

The utility model relates to the technical field of power plant intelligent management and control, in particular to a power plant coal ash and aloe residue intelligent management and control system which comprises a power plant ash removal device, a contactor, a power connection control switch, a change-over switch, a stop button, a start button and a timing start controller. The stop button and the start button are provided with mistaken pressing prevention protection assemblies. According to the application, a dual control mode of automatic control and manual control is set, the situation that the power plant equipment cannot work due to failure of the automatic control system is prevented, and the problems that the equipment cannot be started, the system fails and the like due to failure of the automatic control system can be effectively avoided; the method can effectively guarantee the safe, stable and economical operation of a power system, and prevents the high frequency of automatic control operation, the phenomenon of intelligent control failure, the incapability of normally opening a switch device, and the problem of system fault in a severe case.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent control of power plants, in particular to an intelligent control system for fly ash and slag in power plants. Background Art

[0002] Power plant fly ash refers to the solid waste generated in the process of power generation by burning coal and other fossil fuels, also known as ash or fly ash. The ash and slag formed after burning coal in thermal power plants can be used as ingredients for the production of cement, hollow bricks, and red bricks, and can also be used as road filling materials for road construction, roadbed or paving, and have certain use value.

[0003] During the operation of the power plant, the intelligent control switch plays an important role in the fly ash and slag production process of the power plant. It plays an important role in ensuring stable and safe operation and breaking current when necessary. It has a wide range of uses and a high frequency of operation. During operation, it is inevitable that the control switch will have intelligent control failure, which makes the switch equipment unable to open normally, and in severe cases will cause system failure. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent control system for fly ash and slag in a power plant to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fly ash and slag intelligent management and control system for a power plant, comprising a power plant cleaning device, a contactor, a power control switch, a switching switch, a stop button, a start button and a timed start controller, wherein the switching switch is provided with an anti-miscut protection component on the outside, and the stop button and the start button are provided with an anti-mispress protection component.

[0007] As a preferred solution of the utility model, the power-on control switch is electrically connected to the contactor through a wire, the contactor is electrically connected to the power plant cleaning equipment through a wire, the contactor is electrically connected to the stop button and the start button through a wire, the stop button is electrically connected to the start button through a wire, the switching switch is electrically connected to the power-on control switch, the stop button and the timing start controller through wires, and the timing start controller is electrically connected to the contactor through a wire.

[0008] As a preferred solution of the utility model, the anti-miscutting protection component includes a protective cover, and protective pins are arranged on the bottom of the protective cover. There are four protective pins in total. A slot matching the protective pins is provided on the switching switch. The protective cover is located on the top of the switching switch, and its protective pins are inserted into the slot.

[0009] As a preferred solution of the utility model, the anti-accidental press protection component includes a protective cover and an anti-accidental press limit card, the protective cover is located outside the stop button and the start button, the anti-accidental press limit card is a semicircular structure with an open side, the anti-accidental press limit card is clamped on the outer wall below the stop button and the start button key panel, and the anti-accidental press limit card is detachable.

[0010] As a preferred solution of the utility model, the timed start controller is connected to an external control device via wireless transmission, and an alarm light is connected to the external control device.

[0011] As a preferred solution of the utility model, the power control switch is electrically connected to the power supply through a wire.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In response to the problems raised in the background technology, the present application sets up a dual control method of automatic control and manual control to prevent the automatic control system from failing and causing the power plant equipment to fail to work. This can effectively avoid problems such as the equipment being unable to start and system failures caused by the failure of the automatic control system. At this time, the manual control button is started by switching the switch to start the power system, which can effectively ensure the safe, stable and economical operation of the power system and prevent the high frequency of automatic control operations and the occurrence of intelligent management and control failures, which makes the switch equipment unable to open normally, and in serious cases, causes system failures.

[0014] By setting an anti-miscut protection component on the outside of the switching switch, the switching switch can be protected to prevent staff from accidentally touching the switching switch due to operating errors. By setting an anti-mispress protection component on the outside of the stop button and the start button, the stop button and the start button can be protected to prevent staff from accidentally touching the buttons and causing equipment damage and safety accidents due to operating errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall electrical connection of the utility model;

[0016] Figure 2 This is a side view of the switching switch of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the switching switch of the utility model;

[0018] Figure 4 This is a schematic diagram of the button structure of the utility model.

[0019] In the figure: 1. Power plant cleaning equipment; 2. Contactor; 3. Power control switch; 4. Switch; 41. Protective cover; 42. Protective pin; 43. Slot; 5. Stop button; 6. Start button; 7. Timed start controller; 8. Protective cover; 81. Limit card to prevent accidental pressing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0021] Example

[0022] Each device in this application document adopts a conventional model in the prior art, and the control method is to control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which belongs to the common knowledge in this field, so this application document will not explain it in detail.

[0023] See also Figure 1 The utility model provides a technical solution: an intelligent control system for fly ash and slag in a power plant, comprising a power plant cleaning device 1, a contactor 2, a power control switch 3, a switching switch 4, a stop button 5, a start button 6 and a timed start controller 7, the switch 4 is provided with an anti-miscut protection component on the outside, and the stop button 5 and the start button 6 are provided with an anti-mispress protection component; the power control switch 3 is electrically connected to the contactor 2 through a wire, the contactor 2 is electrically connected to the power plant cleaning device 1 through a wire, the contactor 2 is electrically connected to the stop button 5 and the start button 6 through a wire, the stop button 5 is electrically connected to the start button 6 through a wire, the switching switch 4 is electrically connected to the power control switch 3, the stop button 5 and the timed start controller 7 through a wire, and the timed start controller 7 is electrically connected to the contactor 2 through a wire; the timed start controller 7 is connected to the external control device through wireless transmission, and the external control device is connected with an alarm light; the power control switch 3 is electrically connected to the power supply through a wire.

[0024] It should be noted that the live and neutral wires of the power control switch 3 are respectively connected to the main contacts of the contactor 2, the output of the main contacts of the contactor 2 is connected to the dust cleaning equipment 1 of the power plant, a wire is connected from the output end of the power control switch 3 to the incoming wire of the switch 4, the output of the switch 4 is connected to the incoming wire end of the stop button 5, the outgoing wire of the stop button 5 is connected to one wire to the incoming wire end of the start button 6, and the other is connected to the incoming wire of the auxiliary contact of the contactor 2, the output of the start button 6 is connected to a wire to the coil A2 of the contactor 2, the neutral wire is directly connected to the coil A1 of the contactor 2, a wire is connected from another output of the switch 4 to the first input terminal of the timing start controller 7, a neutral wire is connected from the output of the power control switch 3 to the second terminal of the timing start controller 7, and the third terminal of the timing start controller 7 is connected to the outgoing wire and coil A of the auxiliary contact of the contactor 2 respectively. 2， When the switch 4 is switched to manual control, the start button 6 is pressed, and the power plant cleaning equipment 1 enters manual control. When the switch 4 is switched to automatic control, the power plant cleaning equipment 1 enters automatic control state. When the automatic control fails, the external control device starts the alarm light to alarm, reminding the staff that the automatic control cannot be started. The staff switches the switch 4 to manual control and presses the start button 6, and the power plant cleaning equipment 1 enters manual control.

[0025] Setting up a dual control mode of automatic control and manual control can prevent the automatic control system from failing and causing the power plant equipment to fail to work. This can effectively avoid problems such as equipment failure to start and system failure caused by the failure of the automatic control system. At this time, starting the manual control button by switching switch 4 can effectively ensure the safe, stable and economical operation of the power system, prevent the high frequency of automatic control operations, and prevent the occurrence of intelligent management and control failures, which makes the switch equipment unable to open normally, and in serious cases will cause system failures.

[0026] See also Figure 2 , 3 4, the anti-mistaken cutting protection component includes a protective cover 41, and the bottom of the protective cover 41 is provided with protective pins 42. There are four protective pins 42 in total. The switching switch 4 is provided with a slot 43 matching the protective pin 42. The protective cover 41 is located at the top of the switching switch 4 and its protective pin 42 is inserted into the slot 43; the anti-mistaken pressing protection component includes a protective cover 8 and an anti-mistaken pressing limit card 81. The protective cover 8 is located outside the stop button 5 and the start button 6. The anti-mistaken pressing limit card 81 is a semicircular structure with an opening on one side. The anti-mistaken pressing limit card 81 is clamped on the outer wall below the stop button 5 and the start button 6 button panel, and the anti-mistaken pressing limit card 81 is detachable.

[0027] It should be noted that, in this embodiment, the switch 4 is protected by providing an anti-mis-cut protection component on the outside of the switch 4 to prevent the operator from accidentally touching the switch 4 due to operating errors. The stop button 5 and the start button 6 are protected by providing an anti-mis-press protection component on the outside of the stop button 5 and the start button 6 to prevent the operator from accidentally touching the buttons and causing equipment damage and safety accidents due to operating errors.

[0028] When the automatic control fails, the external control device starts the alarm light to alert the staff that the automatic control cannot be started. The staff unplugs the protective cover 41 on the top of the switch 4 to drive the protective pin 42 out of the slot 43, toggles the switch 4, switches the switch 4 to manual control, unplugs the protective cover 8 on the top of the start button 6, removes the limit card 81 to prevent accidental pressing, and presses the start button 6. The power plant cleaning equipment 1 enters manual control.

[0029] The utility model workflow:

[0030] When in use, the live and neutral wires of the power control switch 3 are respectively connected to the main contacts of the contactor 2, the output of the main contacts of the contactor 2 is connected to the dust cleaning equipment 1 of the power plant, a wire is connected from the output end of the power control switch 3 to the incoming wire of the switch 4, the output of the switch 4 is connected to the incoming wire end of the stop button 5, the outgoing wire of the stop button 5 is connected to one wire to the incoming wire end of the start button 6, and the other is connected to the incoming wire of the auxiliary contact of the contactor 2, the output of the start button 6 is connected to a wire to the coil A2 of the contactor 2, the neutral wire is directly connected to the coil A1 of the contactor 2, a wire is connected from another output of the switch 4 to the first input terminal of the timing start controller 7, a neutral wire is connected from the output of the power control switch 3 to the second terminal of the timing start controller 7, and the third terminal of the timing start controller 7 is connected to the outgoing wire and coil A of the auxiliary contact of the contactor 2 respectively. 2， When the switch 4 is turned to automatic control, the power plant cleaning equipment 1 enters the automatic control state. When the automatic control fails, the external control device starts the alarm light to alarm, reminding the staff that the automatic control cannot be started. The staff unplugs the protective cover 41 on the top of the switch 4 to drive the protective pin 42 to disengage from the slot 43, toggle the switch 4, turn the switch 4 to manual control, unplug the protective cover 8 on the top of the start button 6, remove the anti-mispress limit card 81 and press the start button 6, the power plant cleaning equipment 1 enters manual control, and the operation is completed and the protective cover 41, protective cover 8 and anti-mispress limit card 81 are installed and reset.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control system for fly ash and coal slag in a power plant, comprising a power plant ash cleaning device (1), a contactor (2), a power connection control switch (3), a switching switch (4), a stop button (5), a start button (6) and a timed start controller (7), characterized in that: The switch (4) is provided with an anti-mis-cut protection component on the outside, and the stop button (5) and the start button (6) are provided with an anti-mis-press protection component.

2. The intelligent management and control system for fly ash and slag in a power plant according to claim 1, characterized in that: The power-on control switch (3) is electrically connected to the contactor (2) via a wire, the contactor (2) is electrically connected to the power plant dust cleaning equipment (1) via a wire, the contactor (2) is electrically connected to the stop button (5) and the start button (6) via a wire, the stop button (5) is electrically connected to the start button (6) via a wire, the switching switch (4) is electrically connected to the power-on control switch (3), the stop button (5) and the timed start controller (7) via wires, respectively, and the timed start controller (7) is electrically connected to the contactor (2) via a wire.

3. The intelligent management and control system for fly ash and slag in a power plant according to claim 1, characterized in that: The anti-miscutting protection component comprises a protection cover (41), and the bottom of the protection cover (41) is provided with protection pins (42), and there are four protection pins (42) in total. The switching switch (4) is provided with a slot (43) matching the protection pin (42), and the protection cover (41) is located on the top of the switching switch (4) and its protection pin (42) is inserted into the slot (43).

4. The intelligent management and control system for fly ash and slag in a power plant according to claim 1, characterized in that: The anti-mistaken-press protection component comprises a protection cover (8) and an anti-mistaken-press limit card (81); the protection cover (8) is located outside the stop button (5) and the start button (6); the anti-mistaken-press limit card (81) is a semicircular structure with one side open; the anti-mistaken-press limit card (81) is snap-connected to the outer wall below the key panel of the stop button (5) and the start button (6); and the anti-mistaken-press limit card (81) is detachable.

5. The intelligent management and control system for fly ash and slag in a power plant according to claim 1, characterized in that: The timed start controller (7) is connected to an external control device via wireless transmission, and an alarm light is connected to the external control device.

6. The intelligent management and control system for fly ash and slag in a power plant according to claim 1, characterized in that: The power connection control switch (3) is electrically connected to the power supply via a wire.

Images