CN210033508U - Automatic device of falling platform of ventilation blower - Google Patents
Automatic device of falling platform of ventilation blower Download PDFInfo
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- CN210033508U CN210033508U CN201920810641.1U CN201920810641U CN210033508U CN 210033508 U CN210033508 U CN 210033508U CN 201920810641 U CN201920810641 U CN 201920810641U CN 210033508 U CN210033508 U CN 210033508U
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Abstract
The utility model discloses an automatic reversing device of a ventilator, which comprises an air supply pipeline, wherein an air outlet of the air supply pipeline is communicated with a mine, an air inlet of the air supply pipeline is communicated with a first air channel and a second air channel, the first air channel and the second air channel are a main air channel and a standby air channel, a first fan and a first vertical air door mechanism are sequentially arranged in the first air channel in the direction from the air inlet to the air outlet, and a second fan and a second vertical air door mechanism are sequentially arranged in the second air channel in the direction from the air inlet to the air outlet; the first vertical air door mechanism and the second vertical air door mechanism have the same structure and comprise vertical air doors. This automatic device of falling platform of ventilation fan, reasonable in design is novel, low in manufacturing cost is honest and clean, and the simple installation, the practicality is strong, has shortened the fan outage interrupted time during the fan proruption trouble greatly, has ensured the safety of mine air feed, still can realize main ventilation blower unattended purpose, has good security benefit, economic benefits and popularization and application and worth.
Description
Technical Field
The utility model relates to a mine ventilation safety technical field specifically is an automatic device of falling platform of ventilation blower.
Background
According to the stipulations of the one hundred, five eighteenth item of coal mine safety regulation: "2 sets of primary ventilator units of equal capacity must be installed, of which 1 set is on standby and the standby ventilator must be able to be activated within 10 min". When the existing ventilator fails or stops, the standby fan needs to be started in the shortest time to ensure the safety of underground wind. At present, most of ventilators of a mine are attended by drivers, when the ventilators are in failure and stop wind, the ventilators cannot be reversed according to the specified time, the ventilators are greatly determined by the operation level of the drivers, great uncertainty exists, the ventilators cannot be reversed or the reversing time exceeds the specification, potential safety hazards are brought to the safety production of the mine, and therefore the automatic reversing device for the ventilators is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an automatic device of falling platform of ventilation blower, reasonable in design is novel, low in manufacturing cost is honest and clean, the simple installation, the practicality is strong, has shortened the fan outage interrupted time during the fan proruption trouble greatly, has ensured the safety of mine air feed, still can realize main ventilation blower unmanned on duty's purpose, has good security benefit, economic benefits and popularization and application value, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic reversing device of a ventilator comprises an air supply pipeline and a PLC (programmable logic controller), wherein an air outlet of the air supply pipeline is communicated with a mine, an air inlet of the air supply pipeline is communicated with an air channel I and an air channel II, the air channel I and the air channel II are a main air channel and a standby air channel, a fan I and a vertical air door mechanism I are sequentially arranged in the air channel I in the direction from the air inlet to the air outlet, and a fan II and a vertical air door mechanism II are sequentially arranged in the air channel II in the direction from the air inlet to the air outlet;
the first vertical air door mechanism and the second vertical air door mechanism are identical in structure and respectively comprise vertical air doors, the two vertical air doors respectively correspond to air door openings in the first air channel and the second air channel, the vertical air doors are opened or closed through lifting winches, the two lifting winches are respectively arranged on one sides of the upper portions of the first air channel and the second air channel and are connected with the vertical air doors through steel wire ropes, a slide way is arranged on one side of each vertical air door, a magnet which slides up and down is arranged in the slide way and is connected with the upper end of each vertical air door through a rope, a pulley is arranged at the connecting position, a first magnetic induction switch is arranged on the upper portion of the slide way, and;
the magnet is positioned at a lower dead point after the vertical air door is opened in place, the lower dead point corresponds to the two magnetic induction switches, the magnet is positioned at an upper dead point after the vertical air door is closed in place, and the upper dead point corresponds to the one magnetic induction switch;
the PLC is in signal connection with the first fan, the second fan, the two lifting winches, the first magnetic induction switch and the second magnetic induction switch.
Preferably, the air inlets of the first air duct and the second air duct are both communicated with an induced draft pipe.
Preferably, the first fan and the second fan are of the same type.
Preferably, the magnetic induction switch I and the magnetic induction switch II are of the same type.
Compared with the prior art, the beneficial effects of the utility model are that: this automatic device of falling of logical fan, when the fault fan shuts down, two promotion winch actions of PLC controller control, the air door that hangs down that the fault fan corresponds is closed, the air door that hangs down that the reserve fan corresponds is opened, the air door that hangs down that the fault fan corresponds closes the back that targets in place with the air door that hangs down that the reserve fan corresponds opens the back that targets in place, PLC controller control reserve fan operation, realize the automatic platform that falls of fault fan, reasonable in design is novel, low in manufacturing cost, simple installation, therefore, the clothes hanger is strong in practicability, the fan outage interrupted time during the fan proruption trouble has been shortened greatly, the safety of mine air feed has been ensured, still can realize main ventilation blower unattended purpose, and has good safety benefit, economic benefits and popularization and application value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the opening state of the vertical air door of the present invention;
FIG. 3 is a schematic view of the closed state of the vertical air door of the present invention;
fig. 4 is a schematic block diagram of the control system of the present invention.
In the figure: the device comprises an induced draft tube 1, a fan 2, a vertical air door mechanism 3, an air supply pipeline 4, an air duct 5, a mine 6, an air duct 7, a vertical air door mechanism 8, a fan 9, a hoisting winch 10, a steel wire rope 11, a magnetic induction switch 12, a magnetic induction switch 13, a slide rail 14, a magnetic induction switch 15, a magnet 16, a vertical air door 17 and a PLC (programmable logic controller) 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an automatic reversing device of a ventilator comprises an air supply pipeline 5, an air outlet of the air supply pipeline 5 is communicated with a mine 6, an air inlet of the air supply pipeline 5 is communicated with an air channel I4 and an air channel II 7, air inlets of the air channel I4 and the air channel II 7 are both communicated with an induced duct 1, the air channel I4 and the air channel II 7 are a main air channel and a standby air channel, a fan I2 and a vertical air door mechanism I3 are sequentially arranged in the air channel I4 in the direction from the air inlet to the air outlet, a fan II 9 and a vertical air door mechanism II 8 are sequentially arranged in the air channel II 7 in the direction from the air inlet to the air outlet, and the fan I2 and the fan II 9 are of the same model;
the first vertical air door mechanism 3 and the second vertical air door mechanism 8 are identical in structure and respectively comprise vertical air doors 17, the two vertical air doors 17 are respectively corresponding to air door openings on a first air channel 4 and a second air channel 7 which are respectively corresponding to the two vertical air doors 17, the vertical air doors 17 are opened or closed through lifting winches 10, the two lifting winches 10 are respectively arranged on one sides of the upper portions of the first air channel 4 and the second air channel 7 which are respectively corresponding to the two vertical air doors, the lifting winches 10 are connected with the vertical air doors 17 through steel wire ropes 11, a slide 13 is arranged on one side of each vertical air door 17, magnets 16 which slide up and down are arranged in the slide 13, the magnets 16 are connected with the upper ends of the vertical air doors 17 through ropes 14, pulleys are arranged at the connecting positions, a first magnetic induction switch 12 is arranged on the upper portion of the slide 13;
after the vertical air door 17 is opened in place, the magnet 16 is positioned at a lower dead point which corresponds to the magnetic induction switch II 15, after the vertical air door 17 is closed in place, the magnet 16 is positioned at an upper dead point which corresponds to the magnetic induction switch I12;
the PLC 18 is in signal connection with the first fan 2, the second fan 9 and the two hoisting winches 10, and the PLC 18 is of a common type known in the market, and can be selected from Siemens S7-200.
The automatic platform device work process that falls of this ventilation blower: when the first fan 2 is in a fault shutdown state, a fault signal is fed back to the PLC 18, the PLC 18 sends an action instruction to control the two lifting winches 10 to act, the vertical air door 17 in the first air channel 4 starts to be closed, the vertical air door 17 in the second air channel 7 starts to be opened, the magnet 16 moves upwards when the vertical air door 17 in the first air channel 4 is closed, the magnet 16 is positioned at an upper stop point when the vertical air door is closed in place, the magnetic induction switch I12 senses the magnet 16 and outputs a signal for the PLC 18 to close in place, the magnet 16 moves downwards when the vertical air door 17 in the second air channel 7 is opened, the magnet 16 is positioned at a lower stop point when the vertical air door is opened in place, the magnetic induction switch II 15 senses the magnet 16 and outputs a signal for the PLC 18 to open in place, and the PLC 18 sends an instruction for the second fan 9 to operate after receiving the signal for closing in place and the signal for opening, normal ventilation of a mine is realized, and then the fault fan I2 is overhauled or replaced; in addition, when the second fan 9 breaks down, the first fan 2 operates in the same control mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an automatic device of falling platform of ventilation blower, includes air supply pipeline (5) and PLC controller (18), its characterized in that: an air outlet of the air supply pipeline (5) is communicated with a mine (6), an air inlet of the air supply pipeline (5) is communicated with an air duct I (4) and an air duct II (7), the air duct I (4) and the air duct II (7) are a main air duct and a standby air duct, a fan I (2) and a vertical air door mechanism I (3) are sequentially arranged in the air duct I (4) in the direction from the air inlet to the air outlet, and a fan II (9) and a vertical air door mechanism II (8) are sequentially arranged in the air duct II (7) in the direction from the air inlet to the air outlet;
the first vertical air door mechanism (3) and the second vertical air door mechanism (8) are identical in structure and respectively comprise vertical air doors (17), the two vertical air doors (17) respectively correspond to air door openings on the corresponding first air channel (4) and the corresponding second air channel (7), the vertical air doors (17) are opened or closed through lifting winches (10), the two lifting winches (10) are respectively arranged on one side of the upper parts of the corresponding first air channel (4) and the corresponding second air channel (7), the hoisting winch (10) is connected with the vertical air door (17) through a steel wire rope (11), one side of the vertical air door (17) is provided with a slide way (13), a magnet (16) which slides up and down is arranged in the slide way (13), the magnet (16) is connected with the upper end of the vertical air door (17) through a rope (14), a pulley is arranged at the connecting position, a first magnetic induction switch (12) is arranged at the upper part of the slideway (13), and a second magnetic induction switch (15) is arranged at the lower part of the slideway (13);
after the vertical air door (17) is opened in place, the magnet (16) is positioned at a bottom dead center which corresponds to the magnetic induction switch II (15), after the vertical air door (17) is closed in place, the magnet (16) is positioned at a top dead center which corresponds to the magnetic induction switch I (12);
the PLC (18) is in signal connection with the first fan (2), the second fan (9), the two lifting winches (10), the first magnetic induction switch (12) and the second magnetic induction switch (15).
2. An automatic reverse device of a ventilator according to claim 1, wherein: and air inlets of the first air channel (4) and the second air channel (7) are communicated with an induced draft pipe (1).
3. An automatic reverse device of a ventilator according to claim 1, wherein: the first fan (2) and the second fan (9) are of the same type.
4. A ventilator automatic stage reversing device according to claim 3, characterized in that: the magnetic induction switch I (12) and the magnetic induction switch II (15) are of the same type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920810641.1U CN210033508U (en) | 2019-05-31 | 2019-05-31 | Automatic device of falling platform of ventilation blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920810641.1U CN210033508U (en) | 2019-05-31 | 2019-05-31 | Automatic device of falling platform of ventilation blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033508U true CN210033508U (en) | 2020-02-07 |
Family
ID=69345865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920810641.1U Active CN210033508U (en) | 2019-05-31 | 2019-05-31 | Automatic device of falling platform of ventilation blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033508U (en) |
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2019
- 2019-05-31 CN CN201920810641.1U patent/CN210033508U/en active Active
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