CN101634294A - Seamless energy-saving switching system of main mine fan - Google Patents

Seamless energy-saving switching system of main mine fan Download PDF

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Publication number
CN101634294A
CN101634294A CN200910055915A CN200910055915A CN101634294A CN 101634294 A CN101634294 A CN 101634294A CN 200910055915 A CN200910055915 A CN 200910055915A CN 200910055915 A CN200910055915 A CN 200910055915A CN 101634294 A CN101634294 A CN 101634294A
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fan
butterfly valve
passage
blower fan
secondary door
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CN200910055915A
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CN101634294B (en
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李国庆
朱成刚
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Abstract

The invention relates to a control system of a main mine fan, in particular to a seamless energy-saving switching system of a main mine fan. The seamless energy-saving switching system comprises a first fan passage and a second fan passage, one end of the first fan passage and one end of the second fan passage are respectively communicated with a vertical shaft, and the other end of the first fan passage and one other end of the second fan passage are respectively provided with a first fan and a second fan which are respectively controlled by two motors; the first fan passage and the second fan passage are internally provided with two electric disc valves; and the motors, the fans and the electric disc valves are controlled by PLC. When the seamless energy-saving switching system is used, operation of an operating fan changes to operation of a standby fan, air flow in the mine is basically unchanged so that general 2-4min suspension for replacing the fan for operation is avoided, which is very significant to high gassy mines.

Description

Seamless energy-saving switching system of main mine fan
Technical field
The present invention relates to the control system of main mine fan, particularly a kind of seamless energy-saving switching system of main mine fan.
Background technique
Main fan is the mine, and particularly the capital equipment of coal mining enterprise is finished the effect of mine ventilation, involve the safety of operating personnel under the ore deposit, if move bad, will cause gas accumulation under the ore deposit, the accident of blasting easily, main fan still is the bigger equipment of power in addition, and power consumption is big.
The conventional method of controlling that general present domestic main fan adopts:
Electric part adopts conventional method of controlling, by artificial realization start-stop operation, in case breaking down, blower fan do not have corresponding emergency measure, the ride quality of blower fan monitors by single control system, can not organically get in touch with automatically controlled and frequency variator, during to down-hole air quantity changes in demand, can not carry out air quantity and regulate, cause waste of electric quantity, also can cause the instability of fan operation simultaneously.The mining industry to the requirement of down-hole wind supply quantity than higher; so require also high to the Fan Equipment reliability of operation; industry mandatory requirement blower fan adopts one to open a configuration mode that is equipped with; for guaranteeing the reliable of equipment; usually regularly (usually at 15~30 days) carry out equipment operation in turn; the shutdown of a period of time (2~4 minutes) can appear in the process of rotating; this is for having gas; particularly there is very big danger in the colliery industry of high gas, domestic a lot of such gas explosion accidents has taken place.
Summary of the invention
The object of the present invention is to provide a kind of seamless energy-saving switching system of main mine fan, mainly solve above-mentioned existing in prior technology technical problem, during use, when forwarding the standby fan operation to from moving blower fan, it is constant substantially that the down-hole air quantity keeps, the situation of avoiding the routine replacement fan operation to need pause in 2~4 minutes, this ability is significant to high gassy mine.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of seamless energy-saving switching system of main mine fan, it is characterized in that first fan passage and second fan passage that it comprises that an end is communicated with shaft of vertical well respectively, the first affiliated fan passage and the other end setting of second fan passage are by respectively by first blower fan and second blower fan of two Electric Machine Control; Two electronic dish valves are set respectively in first fan passage and second fan passage; Described motor, blower fan, electronic dish valve are controlled by PLC.
Described seamless energy-saving switching system of main mine fan is characterized in that system is as follows by the operating process of PLC control:
A fan starting process: open the butterfly valve of blower fan front end earlier, after treating to open fully, start the motor of blower fan;
The B blower fan closes closed procedure: two motors of blowing-out machine, turn-off the butterfly valve of blower fan front end again;
C is from first blower fan to the second blower fan reversed process: stop two motors of first blower fan earlier, turn-off the butterfly valve of first fan passage again; Treat that the first fan passage butterfly valve all closes and put in place, open the butterfly valve of second fan passage, after the butterfly valve for the treatment of second fan passage is opened and put in place, restart two motors of second blower fan.
Described seamless energy-saving switching system of main mine fan is characterized in that being mounted on respectively between described motor and the butterfly valve secondary door butterfly valve and negative pressure transmitter on the secondary door of fan passage; Affiliated secondary door butterfly valve and negative pressure transmitter are also controlled by PLC.
Described seamless energy-saving switching system of main mine fan is characterized in that system by first blower fan of PLC control to the second blower fan reversed process is:
The secondary door butterfly valve of second fan passage is opened, after treating to open fully, started the motor of second blower fan, after electric motor starting finishes, open the interior butterfly valve of second fan passage away from secondary door butterfly valve; After treating that butterfly valve is opened fully, the secondary door butterfly valve of first blower fan constant speed is gradually opened, and simultaneously, closes gradually near the butterfly valve of secondary door butterfly valve in first fan passage, and this process makes the degree of closing of butterfly valve follow the tracks of secondary door butterfly valve, makes negative pressure remain on certain limit; When secondary door butterfly valve is opened, another butterfly valve in second fan passage is opened gradually, it opens pattern is the pattern that constant speed is carried out, and the secondary door butterfly valve of second fan passage cuts out gradually again, after treating that secondary door butterfly valve cuts out fully, stop the motor of first blower fan, close secondary door butterfly valve and another butterfly valve of first fan passage simultaneously, finish to this whole process of changing planes.
Described seamless energy-saving switching system of main mine fan is characterized in that being provided with the air water exchange area in described first fan passage and second fan passage.
Compared with prior art, characteristics of the present invention are as follows:
(1) control system is integrated
Control system of the present invention is controlled high-voltage electrical apparatus, VFC and fan parameter monitoring are integrated into a system, operator just can observe all functions relevant with main fan with operation on an operation interface, because all of blower fan control and operation are electric, parameter is mechanically all concluded in the operation system, so can realize various trouble Emergency, as detecting operation blower fan break down (no matter fan vibration or electrical failure), can automatically switch to standby fan, whole process is finished automatically, need not artificial intervention, can significantly reduce the danger of fire damp accumulation blast like this.
In addition, incorporate system can monitor the various parameters of operational outfit simultaneously, the most real-time real data is provided for user or designer, for the efficient operation of device security provides initial data.
(2) energy-saving run
Integral system of the present invention has internal PID computing strategy, can allow the blower fan be that the down-hole provides stable power source in the mode of constant-pressure operation, can regulate automatically the requirement of air quantity according to the down-hole, reach energy-conservation purpose, subfunction can be used with frequency variator or modulating valve, preferably adopt frequency variator, control procedure: a negative pressure transmitter is installed in the vertical of blower fan leading portion, system detects vertical pressure, control system is set a control target value according to the user blower fan is carried out speed governing in system, keeping the vertical negative pressure is a stationary value, and being equivalent to provides a stable exhausting power source to the down-hole, has reduced meaningless waste of energy simultaneously.
(3) blower fan seamless switching machine
When forwarding the standby fan operation to from moving blower fan, it is constant substantially that the down-hole air quantity keeps, the situation of avoiding the routine replacement fan operation to need pause in 2~4 minutes, and this ability is significant to high gassy mine.
Description of drawings
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is the structural representation of control system of the present invention.
Embodiment
See also Fig. 1, the invention discloses a kind of seamless energy-saving switching system of main mine fan.As shown in the figure: it comprises first fan passage and second fan passage that an end is communicated with shaft of vertical well respectively, and the first affiliated fan passage and the other end setting of second fan passage are by first blower fan 1 and second blower fan 2 controlled by two motors 101,102,201,202 respectively; Two electronic dish valves 11,12,21,22 are set respectively in first fan passage and second fan passage; Described motor, blower fan, electronic dish valve are controlled by PLC.
System is as follows by the operating process of PLC control:
A fan starting process: open the butterfly valve 11,12,21,22 of blower fan 1,2 front ends earlier, after treating to open fully, start the motor 101,102,201,202 of blower fan;
The B blower fan closes closed procedure: two motors 101,102,201,202 of blowing-out machine, turn-off the butterfly valve 11,12,21,22 of blower fan front end again;
C is from first blower fan, 1 to second blower fan, 2 reversed processes: stop two motors 101,102 of first blower fan 1 earlier, turn-off the butterfly valve 11,12 of first fan passage again; Treat that the first fan passage butterfly valve 11,12 all closes and put in place, open the butterfly valve 22,21 of second fan passage, after the butterfly valve 22,21 for the treatment of second fan passage is opened and put in place, restart two motors 201,202 of second blower fan 2.
As a kind of improved mode, system architecture can be made following change: be mounted on secondary door butterfly valve 13,23 and negative pressure transmitter P1, P2 on the secondary door of fan passage between described motor 101,102,201,202 and the butterfly valve 11,12,21,22 respectively; Affiliated secondary door butterfly valve and negative pressure transmitter are also controlled by PLC.
System by first blower fan, 1 to second blower fan, 2 reversed processes of PLC control is:
The secondary door butterfly valve 23 of second fan passage is opened, after treating to open fully, started the motor 201,202 of second blower fan, after electric motor starting finishes, open the interior butterfly valve 22 of second fan passage away from secondary door butterfly valve 23; After treating that butterfly valve 22 is opened fully, the secondary door butterfly valve 13 of first blower fan 1 constant speed is gradually opened, and simultaneously, closes gradually near the butterfly valve 11 of secondary door butterfly valve 13 in first fan passage, this process makes the degree of closing of butterfly valve 11 follow the tracks of secondary door butterfly valve 13, makes negative pressure remain on certain limit; When secondary door butterfly valve 13 is opened, another butterfly valve 21 in second fan passage is opened gradually, it opens pattern is the pattern that constant speed is carried out, and the secondary door butterfly valve 23 of second fan passage cuts out gradually again, after treating that secondary door butterfly valve 23 cuts out fully, stop the motor 101,102 of first blower fan, close secondary door butterfly valve 13 and another butterfly valve 12 of first fan passage simultaneously, finish to this whole process of changing planes.The core of the process of changing planes is the control of several butterfly valves is coordinated, and makes great efforts to keep the stable of blower fan well head negative pressure, so as not to causing the blower fan surge.
Be provided with air water exchange area 14,24 in described first fan passage and second fan passage.
See also Fig. 2, control system of the present invention has following advantage:
(1) the online detection and the control of realization main fan are in time found the problem of existence, and are taked corresponding measure automatically.
(2) seamless switching of realization main fan.
(3) realize automatically controlled, the integrated operation interface of fan operation.
(4) PLC system and the computer system passed through realize various control strategy and data-transformation facility.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.

Claims (5)

1, a kind of seamless energy-saving switching system of main mine fan, it is characterized in that first fan passage and second fan passage that it comprises that an end is communicated with shaft of vertical well respectively, the first affiliated fan passage and the other end setting of second fan passage are by first blower fan (1) and second blower fan (2) controlled by two motors (101,102,201,202) respectively; Two electronic dish valves (11,12,21,22) are set respectively in first fan passage and second fan passage; Described motor, blower fan, electronic dish valve are controlled by PLC.
2, seamless energy-saving switching system of main mine fan according to claim 1 is characterized in that system is as follows by the operating process of PLC control:
A fan starting process: open the butterfly valve (11,12,21,22) of blower fan (1,2) front end earlier, after treating to open fully, start the motor (101,102,201,202) of blower fan;
The B blower fan closes closed procedure: two motors (101,102,201,202) of blowing-out machine, turn-off the butterfly valve (11,12,21,22) of blower fan front end again;
C is from first blower fan (1) to second blower fan (2) reversed process: stop two motors (101,102) of first blower fan (1) earlier, turn-off the butterfly valve (11,12) of first fan passage again; Treat that the first fan passage butterfly valve (11,12) all closes and put in place, open the butterfly valve (22,21) of second fan passage, after the butterfly valve (22,21) for the treatment of second fan passage is opened and put in place, restart two motors (201,202) of second blower fan (2).
3, seamless energy-saving switching system of main mine fan according to claim 1 is characterized in that being mounted on respectively between described motor (101,102,201,202) and the butterfly valve (11,12,21,22) secondary door butterfly valve (13,23) and negative pressure transmitter (P1, P2) on the secondary door of fan passage; Affiliated secondary door butterfly valve and negative pressure transmitter are also controlled by PLC.
4, seamless energy-saving switching system of main mine fan according to claim 3 is characterized in that system by first blower fan (1) of PLC control to second blower fan (2) reversed process is:
The secondary door butterfly valve (23) of second fan passage is opened, after treating to open fully, started the motor (201,202) of second blower fan, after electric motor starting finishes, open the interior butterfly valve (22) of second fan passage away from secondary door butterfly valve (23); After treating that butterfly valve (22) is opened fully, the secondary door butterfly valve (13) of first blower fan (1) constant speed is gradually opened, simultaneously, close gradually near the butterfly valve (11) of secondary door butterfly valve (13) in first fan passage, this process makes the degree of closing of butterfly valve (11) follow the tracks of secondary door butterfly valve (13), makes negative pressure remain on certain limit; When secondary door butterfly valve (13) is opened, another butterfly valve (21) in second fan passage is opened gradually, it opens pattern is the pattern that constant speed is carried out, and the secondary door butterfly valve (23) of second fan passage cuts out gradually again, after treating that secondary door butterfly valve (23) cuts out fully, stop the motor (101,102) of first blower fan, close secondary door butterfly valve (13) and another butterfly valve (12) of first fan passage simultaneously, finish to this whole process of changing planes.
5,, it is characterized in that being provided with in described first fan passage and second fan passage air water exchange area (14,24) according to claim 1 or 3 described seamless energy-saving switching system of main mine fan.
CN2009100559151A 2009-08-05 2009-08-05 Seamless energy-saving switching system of main mine fan Expired - Fee Related CN101634294B (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291346A (en) * 2013-06-08 2013-09-11 中国矿业大学 Uninterrupted ventilation device and method for coal mine
CN103485814A (en) * 2013-10-14 2014-01-01 四川广旺能源发展(集团)有限责任公司代池坝煤矿 Wind path system for mine
CN107620606A (en) * 2017-11-08 2018-01-23 中国矿业大学 A kind of coal mine main ventilator not blowing-out method of falling machine based on frequency control function
CN108087317A (en) * 2018-01-24 2018-05-29 洛阳智超机电科技有限公司 A kind of Mine Ventilator air pressure air flow balance switching intelligence control system
CN108386372A (en) * 2018-01-05 2018-08-10 佛山杰致信息科技有限公司 A kind of intelligent power saving blower fan system based on three-dimensional flow impeller
CN110716424A (en) * 2019-12-04 2020-01-21 河南科锐特科技发展有限公司 On-line undisturbed switching control system device for on-use and standby equipment
CN111197495A (en) * 2020-01-07 2020-05-26 淮南市百邦气动科技有限公司 Control system of mining pneumatic fluid control equipment
CN111520175A (en) * 2020-06-15 2020-08-11 平安电气股份有限公司 Switching device for main ventilator and standby ventilator of mine
CN113074015A (en) * 2021-04-13 2021-07-06 神华神东煤炭集团有限责任公司 Ventilator reversing system and ventilator reversing method
CN108087317B (en) * 2018-01-24 2024-07-02 洛阳智超机电科技有限公司 Intelligent control system for switching wind pressure and wind quantity balance of mine ventilator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291346A (en) * 2013-06-08 2013-09-11 中国矿业大学 Uninterrupted ventilation device and method for coal mine
CN103485814A (en) * 2013-10-14 2014-01-01 四川广旺能源发展(集团)有限责任公司代池坝煤矿 Wind path system for mine
CN107620606A (en) * 2017-11-08 2018-01-23 中国矿业大学 A kind of coal mine main ventilator not blowing-out method of falling machine based on frequency control function
CN108386372A (en) * 2018-01-05 2018-08-10 佛山杰致信息科技有限公司 A kind of intelligent power saving blower fan system based on three-dimensional flow impeller
CN108087317A (en) * 2018-01-24 2018-05-29 洛阳智超机电科技有限公司 A kind of Mine Ventilator air pressure air flow balance switching intelligence control system
CN108087317B (en) * 2018-01-24 2024-07-02 洛阳智超机电科技有限公司 Intelligent control system for switching wind pressure and wind quantity balance of mine ventilator
CN110716424A (en) * 2019-12-04 2020-01-21 河南科锐特科技发展有限公司 On-line undisturbed switching control system device for on-use and standby equipment
CN111197495A (en) * 2020-01-07 2020-05-26 淮南市百邦气动科技有限公司 Control system of mining pneumatic fluid control equipment
CN111197495B (en) * 2020-01-07 2021-06-01 淮南市百邦气动科技有限公司 Control system of mining pneumatic fluid control equipment
CN111520175A (en) * 2020-06-15 2020-08-11 平安电气股份有限公司 Switching device for main ventilator and standby ventilator of mine
CN113074015A (en) * 2021-04-13 2021-07-06 神华神东煤炭集团有限责任公司 Ventilator reversing system and ventilator reversing method
CN113074015B (en) * 2021-04-13 2023-07-25 神华神东煤炭集团有限责任公司 Ventilator reversing system and ventilator reversing method

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