CN210029790U - Protection device for preventing misoperation of lifting appliance selection knob of decontamination door machine - Google Patents
Protection device for preventing misoperation of lifting appliance selection knob of decontamination door machine Download PDFInfo
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- CN210029790U CN210029790U CN201920813184.1U CN201920813184U CN210029790U CN 210029790 U CN210029790 U CN 210029790U CN 201920813184 U CN201920813184 U CN 201920813184U CN 210029790 U CN210029790 U CN 210029790U
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Abstract
The utility model provides a protection device of anti-contamination door machine hoist selection knob maloperation, it includes hoist selection confirmation module, hoist selection confirmation module is connected with the input of controller, the output and the bus connection of controller, still including the motor that inserts the bus open and stop module and man-machine interaction module, hoist selection confirmation module includes selection knob switch and confirmation button switch, the motor opens and stops the module and includes the cable drive motor converter and play to rise the drive motor converter. The utility model aims at providing a when carrying out selective control to the hoist through the button in hydroelectric power station unit water inlet machine of decontaminating, behind the wrong button is pressed in the maloperation, can cause the technical problem of equipment damage.
Description
Technical Field
The utility model belongs to generator set and controlgear field, concretely relates to prevent protection device of trash cleaning door machine hoist selection knob maloperation.
Background
The door machine of decontaminating to dam hydroelectric power station unit water inlet has 2 different hoists, one of them hoist is the grab bucket of decontaminating, need connect the retinue cable, another set opens and close the grab beam for the trash rack, need not connect the retinue cable, correspond grab bucket mode and grab beam mode respectively during the use, the action of retinue cable drive motor under the grab bucket mode, the action of hoisting is followed to the drive cable, under the grab beam mode, retinue cable motor does not move, the cable is in quiescent condition. During the working process, a knob switch is used for controlling and selecting the corresponding working mode.
The disadvantages are that: the control selection principle is too simple, and very easily the maloperation causes the result of destructiveness easily, if when using the grab bucket of decontaminating, the retinue cable junction is on the grab bucket, and knob switch selects for grab beam mode of operation, and the grab bucket of decontaminating descends the in-process, retinue cable driving motor does not move, and the cable will directly break, causes irreversible loss.
Disclosure of Invention
The utility model aims at providing a when carrying out selective control to the hoist through the button in hydroelectric power station unit water inlet machine of decontaminating, behind the wrong button is pressed in the maloperation, can cause the technical problem of equipment damage.
The utility model provides a protection device of anti-contamination door machine hoist selection knob maloperation, it includes hoist selection confirmation module, hoist selection confirmation module is connected with the input of controller, the output and the bus connection of controller, still including the motor that inserts the bus open and stop module and man-machine interaction module, hoist selection confirmation module includes selection knob switch and confirmation button switch, the motor opens and stops the module and includes the cable drive motor converter and play to rise the drive motor converter.
The cable driving motor frequency converter and the lifting driving motor frequency converter are respectively connected to the bus, the cable driving motor frequency converter is used for controlling the start and stop of the traveling cable driving motor, and the lifting driving motor frequency converter is used for controlling the start and stop of the lifting driving motor.
The controller is a PLC controller and is a PROFIBUS bus in the longitudinal direction.
The man-machine interaction module comprises input equipment and an alarm.
The input equipment is an HMI touch screen, and the alarm is an audible and visual alarm.
By adopting the technical scheme, the following technical effects can be brought:
the utility model discloses on the basis of hoist selective control in the artifical door machine of decontaminating to hydroelectric power station unit water inlet, another layer of electronic component's monitoring has been increased, under the condition that manual operation has the mistake, the device can in time indicate the staff, under the device's the protection of guiding, the staff can in time find the problem to go into the investigation, avoided leading to the emergence of large-scale accident because of manual operation error, the device convenient to use, reliable has very strong practicality.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a block diagram of the present invention;
fig. 2 to 4 are electrical diagrams of the control side of the present invention.
Detailed Description
As shown in figure 1, the protection device for preventing misoperation of the lifting appliance selection knob of the decontamination door machine comprises a lifting appliance selection confirmation module 1, the lifting appliance selection confirmation module 1 is connected with the input end of a controller 2, the output end of the controller 2 is connected with a bus 3, the protection device further comprises a motor start-stop module 4 and a man-machine interaction module 5 which are connected with the bus 3, the lifting appliance selection confirmation module 1 comprises a selection knob switch 6 and a confirmation button switch 7, and the motor start-stop module 4 comprises a cable driving motor frequency converter 8 and a lifting driving motor frequency converter 9.
Specifically, a cable driving motor frequency converter 8 and a lifting driving motor frequency converter 9 are respectively connected to the bus 3, the cable driving motor frequency converter 8 is used for controlling the start and stop of the traveling cable driving motor, and the lifting driving motor frequency converter 9 is used for controlling the start and stop of the lifting driving motor.
Therefore, under the condition that manual operation has errors, the device can prompt workers in time, under the guiding protection of the device, the workers can find the problems in time and conduct troubleshooting, and the occurrence of large-scale accidents caused by manual operation errors is avoided
Specifically, controller 2 is the PLC controller, and vertical 3 is PROFIBUS bus, and hoist, motor, the control of converter in the door machine of can fine satisfying hydroelectric power station unit water inlet decontamination door machine like this.
Further, the human-computer interaction module 4 comprises an input device and an alarm, the optional input device is an HMI touch screen, and the alarm is an audible and visual alarm. Therefore, the working personnel can well know the operation condition and give a warning when the logic problem exists in the manual operation.
Optionally, the human-computer interaction module 5 is an HMI human-computer interaction device, and its specific model is: the model of the Siemens SIMATICHMIPLC controller can be selected: siemens S7-300 PLC.
The cable drive motor frequency converter 8 can be selected in type: siemens SINAMICS G120.
The type of the lifting drive motor frequency converter 9 can be selected: siemens SINAMICS S120.
On the control side, as shown in fig. 2 to 4, when the hanger selection knob is placed in a grabbing beam working mode (I1.1 is 0) without a traveling cable hanger, the cable drive motor frequency converter starting control state (M4.4) and the lifting drive motor frequency converter starting control state (M4.5) are both 0, both the cable drive motor and the lifting drive motor cannot be started, the HMI man-machine interaction device alarm trigger signal (db8.dbx1.2) is 1, an operator is reminded to confirm whether the hanger selection knob is operated correctly, if the operation is incorrect, the I1.1 is 1, the M4.4 and the M4.5 are changed into 1, and the lifting motor and the traveling cable motor can be started normally; if the operation is correct, pressing the confirmation button changes I1.0 to 1 and M4.5 to 1, and the lifting motor can be started normally.
Claims (5)
1. The utility model provides a prevent protection device of trash-cleaning door machine hoist selection knob maloperation which characterized in that: it includes that the hoist selects confirmation module (1), the input that the hoist selected confirmation module (1) and controller (2) is connected, the output and bus (3) of controller (2) are connected, still including the motor that inserts bus (3) open and stop module (4) and man-machine interaction module (5), the hoist selects confirmation module (1) including selecting knob switch (6) and affirmation button switch (7), motor opens and stops module (4) and includes cable drive motor converter (8) and play to rise driving motor converter (9).
2. The device for protecting against misoperation of the lifting appliance selecting knob of the trash cleaning door machine according to claim 1, characterized in that: the cable driving motor frequency converter (8) and the lifting driving motor frequency converter (9) are respectively connected to the bus (3), the cable driving motor frequency converter (8) is used for controlling the start and stop of the traveling cable driving motor, and the lifting driving motor frequency converter (9) is used for controlling the start and stop of the lifting driving motor.
3. The device for protecting against misoperation of the lifting appliance selecting knob of the trash removal door machine according to claim 1 or 2, characterized in that: the controller (2) is a PLC controller, and the bus (3) is a PROFIBUS bus.
4. The device for protecting against misoperation of the lifting appliance selecting knob of the trash cleaning door machine according to claim 3, characterized in that: the man-machine interaction module (5) comprises input equipment and an alarm.
5. The device for protecting against misoperation of the lifting appliance selecting knob of the trash cleaning door machine according to claim 4, characterized in that: the input device is an HMI touch screen, and the alarm is an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813184.1U CN210029790U (en) | 2019-05-31 | 2019-05-31 | Protection device for preventing misoperation of lifting appliance selection knob of decontamination door machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813184.1U CN210029790U (en) | 2019-05-31 | 2019-05-31 | Protection device for preventing misoperation of lifting appliance selection knob of decontamination door machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210029790U true CN210029790U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920813184.1U Active CN210029790U (en) | 2019-05-31 | 2019-05-31 | Protection device for preventing misoperation of lifting appliance selection knob of decontamination door machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210029790U (en) |
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2019
- 2019-05-31 CN CN201920813184.1U patent/CN210029790U/en active Active
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