CN201277053Y - Intelligent local ventilation system - Google Patents
Intelligent local ventilation system Download PDFInfo
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- CN201277053Y CN201277053Y CNU2008201589954U CN200820158995U CN201277053Y CN 201277053 Y CN201277053 Y CN 201277053Y CN U2008201589954 U CNU2008201589954 U CN U2008201589954U CN 200820158995 U CN200820158995 U CN 200820158995U CN 201277053 Y CN201277053 Y CN 201277053Y
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- 238000009423 ventilation Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 10
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 4
- 101100408455 Arabidopsis thaliana PLC7 gene Proteins 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
An intelligent local ventilation system mainly resolves the technical problems of poor working reliability, large volume, high cost, high price, weak capacity of electromagnetic interference resistance and the like in the prior local ventilation system. The essential points of the technical scheme include the intelligent local ventilation system is composed of a variable frequency local ventilator, an intelligent switch, sensors or a down-hole signal monitor system, wherein the intelligent switch is equipped with an audible-visual alarm and a displaying and controlling panel, and is connected with a gas sensor, a wind speed sensor and a temperature sensor respectively, the intelligent switch utilizes an programmable logic controller PLC, signal data collected by the sensors or the down-hole signal monitor system are transmitted to the programmable logic controller PLC to be analyzed and processed through an intrinsic safe I/O junction box. The intelligent local ventilation system cools a frequency-converter forcedly and prevents dust accumulation of a radiating surface by utilizing ventilating flow of a fan, which is small in space occupation and high in reliability, can realize on-line control of two disrotatory fans and self-switching, and is mainly used to the mine local ventilation system.
Description
Technical field
The utility model relates to a kind of ventilation equipment that are used for, especially a kind of mining partial ventilation equipment.
Background technology
At present, domestic and international down-hole, the mine general ventilation fan that adopts single-stage, twin-stage, twin-stage to several forms such as revolving that ventilates, general equal can only " cancelling all things together " can not be realized the adjusting of air quantity, in the time of can not satisfying tunnelling, the demand of change in depth.More can not satisfy the inhomogeneous air quantity demand of gushing out of gas in the tunnelling process, the mine user generally selects the blower fan model to tunnelling by rule of thumb with ventilation fan, in order to prevent accident, some user selects for use big model booster to cause waste of energy, do not take intelligentized control measure, the intellectuality adjusting of air quantity, blast can not be realized, the effect of " energy-conservation at ordinary times, catastrophe is combated a natural disaster " can not be reached.And generally can not realize realizing the function of intelligence adjusting air quantity, blast according to dust concentration in gas density, air themperature, the air.And converter plant and booster can not be realized integrated, and system can not be integrated.
The utility model patent that my company declared in 2005 " mine intelligent local ventilation system " (patent No.: ZL2005200498009), the one, adopt external explosion-proof frequency converter+multistage to revolving booster; The 2nd, adopt the booster that intelligent switch+multistage multispeed electric machine is formed.Two kinds of forms all take too many lane space, and explosion-proof frequency converter in the down-hole owing to adopt the nature cooling, take up room big, poor reliability, and the blower fan that multistage multispeed electric machine is formed can not be realized the even regulation of air quantity, blast.Though it has adopted the frequency control scheme, can realize that the intelligence of air quantity is regulated, explosion-proof frequency converter is external, can not combine with blower fan to constitute incorporate product, and explosion-proof frequency converter is that nature cooling, functional reliability are poor.Booster adopts level Four to revolving structure, and result of use, fan efficiency all do not have two-stage good to revolving structure, and the patented product cost compares higher, and it is long to take lane space length, poor for applicability.
Summary of the invention
Take up room greatly because prior art products exists, electric energy is converted into wind energy does not have two-stage to revolving the booster height.External frequency converter can not utilize the air of booster to force cooling, can only cool off naturally by radiator, radiating efficiency is low, and at the easy laying dust of down-hole spreader surface, the frequency converter functional reliability is poor, volume is big, cost is high, price is expensive, and a little less than the anti-electromagnetic interference capability.
The purpose of this utility model provides and has a kind ofly reduced product cost, improves system reliability, reduces the intelligent local ventilation system that takes up room, increase work efficiency.
The technical scheme that its technical problem that solves the utility model adopts is: it is made of frequency conversion booster, intelligent switch, sensor or underground signal monitoring system, intelligent switch is provided with audible-visual annunciator and demonstration, control panel, comprises that gas, wind speed, temperature pick up link with intelligent switch respectively; Intelligent switch adopts programmable logic controller (PLC) PLC, and the signal data of sensor or the collection of underground signal monitoring system sends programmable logic controller (PLC) PLC to by intrinsic safety I/O junction box and carries out analyzing and processing.Described intrinsic safety I/O junction box is made of non-intrinsic safety wiring terminal and intrinsic safety wiring terminal more than 2 pairs, adopt photoelectric isolating circuit to link between the every pair of non-intrinsic safety wiring terminal and the intrinsic safety wiring terminal, described photoelectric isolating circuit is by the circuit that comprises that photoelectrical coupler, diode, electric capacity and resistance constitute.
The utility model constitutes main system by frequency conversion booster, intelligent switch respectively and back-up system, 2 systems install side by side, and the communication interface of the intelligent switch of main system and 2 systems of back-up system is coupled to each other.Described frequency conversion booster adopts two counter-rotating fans, it is by current collector 1, premuffler 2, flow channel type frequency converter 3, to revolving one-level blower fan 4, connecting successively and form revolving secondary blower fan 5 and rear muffler 6, described flow channel type frequency converter 3 with on same axis, link or make an integral body revolving one-level blower fan 4, and flow channel type frequency converter 3 respectively with to revolving one-level blower fan 4 and the circuit that revolves secondary blower fan 5 being linked.Described flow channel type frequency converter 3 is to be connected by 2 half housings to form flame proof and cooperate connect firmly into closed at both ends outer to form columned transducer body 16, between the joint face of 2 half housings, be provided with flameproof joint, transducer body 16 is installed in the cross section central authorities of frequency converter air duct 17, be provided with between transducer body 16 and the frequency converter air duct 17 and support coupling arrangement 19, the wall of transducer body 16 is provided with the connection cable connection holes, frequency converter air duct 17 be provided with transducer body 16 on the corresponding junction box connection holes in connection cable connection holes position that is provided with, be installed in the outer frequency converter junction box 18 of frequency converter air duct 17 and the tie of maneuver box 20 and pass wire barrel device 21 respectively, junction box connection holes and connection cable connection holes link with the electric assembly that is installed in the transducer body 16.Intelligent switch is made of intelligent switch housing 11, intelligent switch junction box 12 and Switch main body 14, and intelligent switch junction box 12 is installed on the intelligent switch housing 11, and intelligent switch junction box 12 is provided with cable introducing device 13; Switch main body 14 is installed in the intelligent switch housing 11, Switch main body 14 is provided with communication module 9 and programmable logic controller (PLC) PLC10, intelligent switch operating grip 15 and man-machine dialog interface 7 are installed on the intelligent switch housing 11, and link with Switch main body 14, man-machine dialog interface 7 links by circuit and programmable logic controller (PLC) PLC10.
The beneficial effects of the utility model are: it is by adopting integral structure, explosion-proof frequency converter and blower fan are combined into an integral body, utilize blower fan distinguished and admirable to frequency converter force the cooling, make radiating surface not have the laying dust phenomenon, take up room little, reliability is high, it can realize the online control of two counter-rotating fans; Be designed to the intrinsic safety of online signal; By the online modification of man-machine interface to discharge quantity of fan; Guarantee to realize the automatic switchover of two typhoon machines operation under the prerequisite of underworkings ventilation reliability; It adopts integrated fan frequency conversion arrangements for speed regulation, has both solved the frequency converter heat dissipation problem, has improved the frequency converter operational reliability, has reduced lane space again; Can realize in the course of work that air quantity regulates and safe operation automatically, can guarantee the development end wind supply quantity, but energy conservation again simultaneously.It is by adopting the combined integral RHVC, and booster adopts two-stage to revolving structure, thereby reduced product cost, improved the system works reliability, reduced system take up room, improved system works efficient, product is proper user's demand further.And converter plant can make up with the booster that the mine user is using, and can be user-friendly to, and has realized integrated and system integrated of converter plant and booster.
Description of drawings
Fig. 1 is a system architecture diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of intrinsic safety I/O junction box.
Fig. 3 is a RHVC operating principle block diagram.
Fig. 4 is an intelligent switch operating principle block diagram.
Fig. 5 is the structural representation of variable-frequency speed-regulating local fan.
Fig. 6 is an intelligent switch appearance structure schematic diagram.
Fig. 7 is the structural representation of intelligent switch.
Fig. 8 is the structural representation of flow channel type frequency converter.
Fig. 9 is the left TV structure schematic diagram of Fig. 7.
Among the figure: 1-current collector, 2-premuffler, 3-flow channel type frequency converter, 4-is to revolving the one-level blower fan, 5-is to revolving the secondary blower fan, 6-rear muffler, 7-man-machine dialog interface, 8-intrinsic safety I/O junction box, the 9-communication module, 10-programmable logic controller (PLC) PLC, 11-intelligent switch housing, 12-intelligent switch junction box, the cable introducing device of 13-intelligent switch, 14-Switch main body, 15-intelligent switch operating grip, the 16-transducer body, 17-frequency converter air duct, 18-frequency converter junction box, 19-supports coupling arrangement, the 20-maneuver box, 21-wire barrel device.
The specific embodiment
That the utility model is described in further detail is as follows below in conjunction with embodiment:
Operating principle of the present utility model is: the power frequency three-phase alternating-current supply is after the input cable is incorporated into the frequency conversion special switch; through behind isolating switch → vacuum contactor → electronics synthesis protective device; output to and be sent to AC reactor → rectification module → behind the input → power-supply filter of this input power supply in being installed in frequency converter that is placed in frequency converter in the frequency conversion fan through the rectification module rectification; after alternating current is transformed into direct current → this dc source is fed to IGBT inversion module → after this module is reverse into the AC power of frequency adjustable with dc source; supply with the one-level of blower fan simultaneously; the secondary motor is realized the fan intelligent air feed.
The electronics synthesis protection explanation of main system and back-up system: the power frequency three-phase alternating-current supply is incorporated into the master through the input cable; after being equipped with the input terminal of frequency conversion special switch; to lead; the isolation reversing switch connection → master of power backup road special switch; the electronics synthesis protective device that is equipped with in the switch carries out detection of electrical leakage; when the loop of examining does not have electric leakage; programmable logic controller (PLC) PLC in the frequency conversion special intelligent switch in main system of 3 and 4 closings of contact of electronics synthesis protective device → meanwhile and the back-up system gets; and with the joining gas of intelligent switch; temperature; sensors such as dust get electric and work → its signal and output among the programmable logic controller (PLC) PLC in the frequency conversion special intelligent switch in main system and the back-up system, compare in PLC.After normal, the Q0:0 output point closure of PLC.The auxiliary reclay of the intelligent switch in the main system get electric and constant open contact closed; be the startup of the main switch main transformer starting button in the switch frequently of preparing → press; the vacuum contactor main contacts closure of the intelligent switch in the main system; the power frequency three-phase alternating-current supply through the electronics synthesis protective device be sent to be placed in main transformer frequently in the blower fan input → this input power supply of frequency converter after frequency converter startup work; become frequency adjustable ground three-phase alternating-current supply and supply with one-level, the secondary motor rotation of main air blower simultaneously, to realize the intelligent air feed of this blower fan.
The explanation of main system and back-up system short range, Long-distance Control: in the booster working site, installation is provided with sensors such as dust, temperature and gas, and sensor compares the programmable logic controller (PLC) PLC that detected parameter in the site work environment is sent in the intelligent switch in the main system.If detected parameter value meets the requirement of setting normal value among the programmable logic controller (PLC) PLC, then the instruction of the previous given frequency converter of programmable logic controller (PLC) PLC remains unchanged.The rotating speed of frequency conversion fan remains unchanged.If programmable logic controller (PLC) PLC relatively after, detected parameter value is bigger than normal value, then programmable logic controller (PLC) PLC sends instruction by the RS485 port to the control centre of frequency converter, change output frequency, increase rotation speed of fan, impel dust, temperature or gas parameter in the working environment to drop to just often and end.Meanwhile the environmental aspect of working site is also delivered on the display screen by the RS485 port of programmable logic controller (PLC) PLC in the lump and is shown.In the intelligent switch system in main system, the communication module that programmable logic controller (PLC) PLC adds and the Long-distance Control communication center of upper level instruct the control of transmitting.
When the intelligent switch in the main system can not be worked for some reason, the main contacts of its vacuum contactor disconnected, and auxiliary constant open contact disconnects, and the time relay dead electricity in the intelligent switch in the back-up system quits work, constant close contact timing closing.The constant open contact time-delay disconnects, and the main contacts in the intelligent switch in the back-up system gets electric work, the closed and self-locking of its main contacts.Intelligent switch in the back-up system enters duty; the electronics synthesis protective device of power frequency three-phase alternating current in this device be sent to be placed in frequency converter in the standby variable frequency blower fan input → this input power supply after frequency converter startup work; become frequency adjustable ground three-phase alternating-current supply and supply with one-level, the secondary motor rotation of standby fan simultaneously, realize the intelligent air feed of this blower fan.
In like manner, the dust, temperature and the firedamp sensor that are installed in the working site compare the programmable logic controller (PLC) PLC that detected parameter in the site work environment is sent in the intelligent switch in the back-up system, detected parameter value then keeps the rotating speed of standby variable frequency blower fan constant if satisfy the normal value requirement of setting among the programmable logic controller (PLC) PLC.If relatively, detected parameter value is bigger than normal value, then programmable logic controller (PLC) PLC sends instruction by the RS485 port to the control centre of standby variable frequency device, change output frequency, increase rotation speed of fan, impel dust, temperature or gas parameter in the working environment to drop to just often and end.Meanwhile the environmental aspect of working site is also delivered on the display screen by the RS485 port of programmable logic controller (PLC) PLC in the lump and is shown.In the intelligent switch system in back-up system, the communication module that programmable logic controller (PLC) PLC adds also can be instructed the control of transmission with the Long-distance Control communication center of upper level.
Claims (6)
1, a kind of intelligent local ventilation system, it is characterized in that: it is made of frequency conversion booster, intelligent switch, sensor or underground signal monitoring system, intelligent switch is provided with audible-visual annunciator and demonstration, control panel, comprises that gas, wind speed, temperature pick up link with intelligent switch respectively; Intelligent switch adopts programmable logic controller (PLC) PLC, and the signal data of sensor or the collection of underground signal monitoring system sends programmable logic controller (PLC) PLC to by intrinsic safety I/O junction box and carries out analyzing and processing.
2, intelligent local ventilation system according to claim 1, it is characterized in that: described intrinsic safety I/O junction box is made of non-intrinsic safety wiring terminal and intrinsic safety wiring terminal more than 2 pairs, adopt photoelectric isolating circuit to link between the every pair of non-intrinsic safety wiring terminal and the intrinsic safety wiring terminal, described photoelectric isolating circuit is by the circuit that comprises that photoelectrical coupler, diode, electric capacity and resistance constitute.
3, intelligent local ventilation system according to claim 1, it is characterized in that: it constitutes main system by frequency conversion booster, intelligent switch respectively and back-up system, 2 systems install side by side, and the communication interface of the intelligent switch of main system and 2 systems of back-up system is coupled to each other.
4, intelligent local ventilation system according to claim 1, it is characterized in that: described frequency conversion booster adopts two counter-rotating fans, it is by current collector (1), premuffler (2), flow channel type frequency converter (3), to revolving one-level blower fan (4), connecting successively and form revolving secondary blower fan (5) and rear muffler (6), described flow channel type frequency converter (3) with on same axis, link or make an integral body revolving one-level blower fan (4), and flow channel type frequency converter (3) respectively with to revolving one-level blower fan (4) and the circuit that revolves secondary blower fan (5) being linked.
5, intelligent local ventilation system according to claim 4, it is characterized in that: described flow channel type frequency converter (3) is to be connected by 2 half housings to form the outer columned transducer body (16) that forms that the flame proof cooperation connects firmly into closed at both ends, between the joint face of 2 half housings, be provided with flameproof joint, transducer body (16) is installed in the cross section central authorities of frequency converter air duct (17), be provided with between transducer body (16) and the frequency converter air duct (17) and support coupling arrangement (19), the wall of transducer body (16) is provided with the connection cable connection holes, frequency converter air duct (17) is provided with transducer body (16) and goes up the corresponding junction box connection holes in connection cable connection holes position that is provided with, and is installed in the outer frequency converter junction box (18) of frequency converter air duct (17) and the tie of maneuver box (20) and passes wire barrel device (21) respectively, junction box connection holes and connection cable connection holes link with the electric assembly that is installed in the transducer body (16).
6, intelligent local ventilation system according to claim 1, it is characterized in that: intelligent switch is made of intelligent switch housing (11), intelligent switch junction box (12) and Switch main body (14), intelligent switch junction box (12) is installed on the intelligent switch housing (11), and intelligent switch junction box (12) is provided with cable introducing device (13); Switch main body (14) is installed in the intelligent switch housing (11), Switch main body (14) is provided with communication module (9) and programmable logic controller (PLC) PLC (10), intelligent switch operating grip (15) and man-machine dialog interface (7) are installed on the intelligent switch housing (11), and link with Switch main body (14), man-machine dialog interface (7) links by circuit and programmable logic controller (PLC) PLC (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201589954U CN201277053Y (en) | 2008-10-31 | 2008-10-31 | Intelligent local ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201589954U CN201277053Y (en) | 2008-10-31 | 2008-10-31 | Intelligent local ventilation system |
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| Publication Number | Publication Date |
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| CN201277053Y true CN201277053Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201589954U Expired - Fee Related CN201277053Y (en) | 2008-10-31 | 2008-10-31 | Intelligent local ventilation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536295A (en) * | 2010-12-24 | 2012-07-04 | 山西潞安环保能源开发股份有限公司 | Intelligent local ventilation system |
| CN103534660A (en) * | 2011-06-16 | 2014-01-22 | Abb研究有限公司 | Method and system for fluid flow control in a fluid network system |
| CN103591041A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Intelligent coal mine local ventilation system |
| CN113096501A (en) * | 2021-03-03 | 2021-07-09 | 安徽电子信息职业技术学院 | PLC experimental device based on industrial Internet of things and application thereof |
-
2008
- 2008-10-31 CN CNU2008201589954U patent/CN201277053Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536295A (en) * | 2010-12-24 | 2012-07-04 | 山西潞安环保能源开发股份有限公司 | Intelligent local ventilation system |
| CN102536295B (en) * | 2010-12-24 | 2014-04-02 | 山西潞安环保能源开发股份有限公司 | Intelligent local ventilation system |
| CN103534660A (en) * | 2011-06-16 | 2014-01-22 | Abb研究有限公司 | Method and system for fluid flow control in a fluid network system |
| CN103591041A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Intelligent coal mine local ventilation system |
| CN103591041B (en) * | 2013-11-30 | 2016-06-08 | 南阳防爆集团股份有限公司 | Intelligent coal mine local ventilation system |
| CN113096501A (en) * | 2021-03-03 | 2021-07-09 | 安徽电子信息职业技术学院 | PLC experimental device based on industrial Internet of things and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: PING'AN ELECTRIC CO., LTD. Free format text: FORMER NAME: XIANGTAN PINGAN ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 411100 Xiangtan, Lake District, Jintang Bay, Ping An Road, No. 12 Patentee after: Ping'an Electric Co., Ltd. Address before: 411100 Xiangtan, Lake District, Jintang Bay, Ping An Road, No. 12 Patentee before: Xiangtan Pingan Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20171031 |