CN102251980A - Subway tunnel fan control system - Google Patents
Subway tunnel fan control system Download PDFInfo
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- CN102251980A CN102251980A CN2011102276493A CN201110227649A CN102251980A CN 102251980 A CN102251980 A CN 102251980A CN 2011102276493 A CN2011102276493 A CN 2011102276493A CN 201110227649 A CN201110227649 A CN 201110227649A CN 102251980 A CN102251980 A CN 102251980A
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- 239000000779 smoke Substances 0.000 abstract description 7
- 239000004821 Contact adhesive Substances 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
- F04D19/005—Axial flow fans reversible fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a subway tunnel fan control system, which comprises a main circuit, a programmable logic controller (PLC) control circuit and a forced start control circuit. When a PLC control system fails, a fan can be forcibly started to run through the forced start control circuit; when the subway tunnel fan runs in a fire condition mode, the system can effectively shield the fault to ensure safe, reliable and normal operation of the fan; and the fan provides necessary fresh air for passengers and fire fighters by air supply or smoke exhaust, and a certain face velocity is formed, so that the passengers and the workers are guided to evacuate safely, harmful smoke is removed, and the fire-fighting function of exhausting the smoke by supplying fresh air is realized.
Description
Technical field
The present invention relates to a kind of subway tunnel blower fan control system, especially relate to a kind of tunnel blower fan control system that opens function by force that has.
Background technique
Along with domestic big city track traffic in recent years---subway flourish, the application of subway tunnel blower fan more and more widely, the subway tunnel blower fan control system also constantly improves and upgrades, various subway tunnel fan controllers are widely used in the control of blower fan.There is frequency variator to start blower fan, has soft initiator to start blower fan, also have the star triangle in early days or, the control gear of direct startup blower fan is arranged also from lotus root reduced-voltage starting blower fan.In these fan controllers, adopt frequency variator to start the device of operation control blower fan, have stable, energy-conservation, efficient, the advantage of easy care.The subway tunnel blower fan is when being applied to the fire working pattern, and blower fan is directly switch into power frequency bypass operation after finishing by the frequency variator startup, controls the subway tunnel blower fan and discharges fume at full speed.Control system has on the spot, distance control mode, when control system breaks down for a certain reason, fan controller can't in time start the trouble-free operation of subway tunnel blower fan, particularly under the operating mode of the urgent smoke evacuation of fire working, the fault of subway tunnel blower fan control system can cause the serious accident that the subway tunnel blower fan can't normally move.The malfunctioning tragedy that all can produce life death of any subway tunnel blower fan.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of subway tunnel blower fan control system that promptly opens function by force that has is provided.
For achieving the above object, the present invention can take following technical proposals: a kind of subway tunnel blower fan control system, comprise main circuit, PLC control circuit and open control circuit by force, described main circuit comprises three phase mains live wire L1, L2, L3, three-phase breaker QF, frequency converter B P, contactor KM1, KM2, KM4, motor M, the main contact of described three-phase breaker QF, frequency converter B P, contactor KM1 is connected across between three live wire L1, L2, the L3 successively, and the output of the main contact of contactor KM1 connects the input of motor M; Contactor KM2 in parallel and contactor KM4 respectively between the main contact output terminal of the output terminal of three-phase breaker QF1 and contactor KM1;
Described PLC control circuit comprises circuit breaker Q F2, contactor KM1, KM2, KM4, auxiliary reclay KA4, KA9, KA10, zero line N;
Between the input end of the input termination circuit breaker Q F1 of described circuit breaker Q F2, the output terminal of circuit breaker Q F2 and zero line N a loop in parallel is arranged;
The branch road 1 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM4, the normally-closed contact of contactor KM1, the contactor KM2 of auxiliary reclay KA5, the input end of the normally opened contact of KA5 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM2 links to each other with zero line N;
The branch road 2 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM1, the contactor KM4 of auxiliary reclay KA6, the input end of the normally opened contact of KA6 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM4 links to each other with zero line N;
The branch road 3 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM4, the contactor KM1 of auxiliary reclay KA3, the input end of the normally opened contact of KA3 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM1 links to each other with zero line N;
The branch road 4 of described shunt circuit comprises auxiliary reclay KA9, KA10, normally opened contact, the auxiliary reclay KA10 of the normally opened contact of auxiliary reclay KA1, auxiliary reclay KA9 series connection back and auxiliary reclay KA2 form a little shunt circuit, the normally opened contact of the normally opened contact of frequency converter B p, auxiliary reclay KA3 is connected with this little shunt circuit, the input end of the normally opened contact of frequency converter B P links to each other with the output terminal of circuit breaker Q F2, and the output terminal of auxiliary reclay KA9, KA10 links to each other with zero line N;
The branch road 5 of described shunt circuit comprises an auxiliary reclay KA4, and the input end of KA4 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of KA4 links to each other with zero line N;
The D1 contact that is connected PLC power supply power supply circuit breaker Q F3 between the input end of the input end of described branch road 4 and branch road 5 is connected the D2 contact of circuit breaker Q F3 between the output terminal of the output terminal of described branch road 4 and branch road 5, described D1, D2 contact are the contact of linking;
The described circuit that opens by force is made up of control circuit and circuit for remotely controlling on the spot, comprises on the spot/remote control switch SA1 auxiliary reclay KA4; Described SA1 comprises contact 1,2,3,4, and the input end of the normally-closed contact of auxiliary reclay KA4 is connected with the output terminal of circuit breaker Q F2, and the output terminal of the normally-closed contact of KA4 is connected with 1,3 contacts of SA1 respectively; On the spot/and the contact of remote control switch SA1 1,2 is closed to be state of a control on the spot, contact 3,4 closures of SA1 are the telecontrol state;
Described control circuit on the spot comprises controls normally closed switch SB1 on the spot, control normal open switch SB2 on the spot, SB3, the contact 2 of described SA1 is connected with the input end of controlling normally closed switch SB1 on the spot, the output terminal of controlling normally closed switch SB1 on the spot respectively with the input end of controlling normal open switch SB2 on the spot, the input end of the normally-closed contact of contactor KM2, control the input end of normal open switch SB3 on the spot, the input end of the normally-closed contact of contactor KM4 connects, the output terminal of SB2, the output terminal of the normally-closed contact of KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the output terminal of SB3, the normally-closed contact of KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other;
Described circuit for remotely controlling comprises telecontrol normally closed switch SC1, telecontrol normal open switch SC2, SC3, the contact 4 of described SA1 is connected with the input end of SC1, the output terminal of SC1 is connected with the input end of the normally opened contact of the input end of the input end of the normally opened contact of the input end of SC2, contactor KM2, SC3, contactor KM4 respectively, the output terminal of the normally opened contact of the output terminal of SC2, contactor KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the normally opened contact of the output terminal of SC3, contactor KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other.
Subway tunnel blower fan control system of the present invention; have the control system that promptly opens by force; exactly conventional PLC on the spot/increased by one group of urgent strong control mode that starts on the distance control mode; it is the control mode that a kind of reserve starts the subway tunnel blower fan; if conventional PLC on the spot/tele-control system breaks down; in the time of can't normally recovering in short time; and by chance run into the fire working pattern this time; when needing this iron tunnel, tableland fan operation to discharge fume; just can adopt this standby control mode that promptly opens blower fan by force, guarantee that the subway tunnel blower fan normally moves smoke evacuation.
In sum, beneficial effect of the present invention is: system break down or breaking out of fire in, can start the tunnel blower fan safely and fast, improved the reliability of blower fan control system, Security, multifunctionality, stability, thus guarantee that the subway tunnel blower fan all possesses the condition of reliable and stable safe operation under various working conditions.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is control principle figure of the present invention.
Fig. 3 is a main circuit diagram of the present invention.
Fig. 4 is control circuit figure of the present invention.
Embodiment
In order to make those skilled in the art person better understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the invention, technological scheme in the embodiment of the invention is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills should belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
As shown in the figure, subway tunnel blower fan control system of the present invention, comprise main circuit, PLC control circuit and open control circuit by force, described main circuit comprises three phase mains live wire L1, L2, L3, three-phase breaker QF, frequency converter B P, contactor KM1, KM2, KM4, motor M, the main contact of described three-phase breaker QF, frequency converter B P, contactor KM1 are connected across between three live wire L1, L2, the L3 successively, and the output of the main contact of contactor KM1 connects the input of motor M; Contactor KM2 in parallel and contactor KM4 respectively between the main contact output terminal of the output terminal of three-phase breaker QF1 and contactor KM1;
Described PLC control circuit comprises circuit breaker Q F2, contactor KM1, KM2, KM4, auxiliary reclay KA4, KA9, KA10, zero line N;
Between the input end of the input termination circuit breaker Q F1 of described circuit breaker Q F2, the output terminal of circuit breaker Q F2 and zero line N a loop in parallel is arranged;
The branch road 1 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM4, the normally-closed contact of contactor KM1, the contactor KM2 of auxiliary reclay KA5, the input end of the normally opened contact of KA5 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM2 links to each other with zero line N;
The branch road 2 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM1, the contactor KM4 of auxiliary reclay KA6, the input end of the normally opened contact of KA6 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM4 links to each other with zero line N;
The branch road 3 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM4, the contactor KM1 of auxiliary reclay KA3, the input end of the normally opened contact of KA3 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM1 links to each other with zero line N;
The branch road 4 of described shunt circuit comprises auxiliary reclay KA9, KA10, normally opened contact, the auxiliary reclay KA10 of the normally opened contact of auxiliary reclay KA1, auxiliary reclay KA9 series connection back and auxiliary reclay KA2 form a little shunt circuit, the normally opened contact of the normally opened contact of frequency converter B p, auxiliary reclay KA3 is connected with this little shunt circuit, the input end of the normally opened contact of frequency converter B P links to each other with the output terminal of circuit breaker Q F2, and the output terminal of auxiliary reclay KA9, KA10 links to each other with zero line N;
The branch road 5 of described shunt circuit comprises an auxiliary reclay KA4, and the input end of KA4 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of KA4 links to each other with zero line N;
The D1 contact that is connected PLC power supply power supply circuit breaker Q F3 between the input end of the input end of described branch road 4 and branch road 5 is connected the D2 contact of circuit breaker Q F3 between the output terminal of the output terminal of described branch road 4 and branch road 5, described D1, D2 contact are the contact of linking;
The described circuit that opens by force is made up of control circuit and circuit for remotely controlling on the spot, comprises on the spot/remote control switch SA1 auxiliary reclay KA4; Described SA1 comprises contact 1,2,3,4, and the input end of the normally-closed contact of auxiliary reclay KA4 is connected with the output terminal of circuit breaker Q F2, and the output terminal of the normally-closed contact of KA4 is connected with 1,3 contacts of SA1 respectively; On the spot/and the contact of remote control switch SA1 1,2 is closed to be state of a control on the spot, contact 3,4 closures of SA1 are the telecontrol state;
Described control circuit on the spot comprises controls normally closed switch SB1 on the spot, control normal open switch SB2 on the spot, SB3, the contact 2 of described SA1 is connected with the input end of controlling normally closed switch SB1 on the spot, the output terminal of controlling normally closed switch SB1 on the spot respectively with the input end of controlling normal open switch SB2 on the spot, the input end of the normally-closed contact of contactor KM2, control the input end of normal open switch SB3 on the spot, the input end of the normally-closed contact of contactor KM4 connects, the output terminal of SB2, the output terminal of the normally-closed contact of KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the output terminal of SB3, the normally-closed contact of KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other;
Described circuit for remotely controlling comprises telecontrol normally closed switch SC1, telecontrol normal open switch SC2, SC3, the contact 4 of described SA1 is connected with the input end of SC1, the output terminal of SC1 is connected with the input end of the normally opened contact of the input end of the input end of the normally opened contact of the input end of SC2, contactor KM2, SC3, contactor KM4 respectively, the output terminal of the normally opened contact of the output terminal of SC2, contactor KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the normally opened contact of the output terminal of SC3, contactor KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other.
Working principle: as shown in Figure 2, under the normal condition, just the changeing of blower fan, counter-rotating and frequency adjustment are controlled by frequency converter B P, the ac power supply 0 of 380V, 50HZ is through circuit breaker Q F1, frequency converter B P, VFC contactor KM1, be connected to blower motor M by tenminal block XT, the fan power supply.Under the fire working, when fan operation when the peak frequency, automatically switch to by the PLC classical control system that power frequency is just being changeed or power frequency counter-rotating operation, this moment, frequency converter B P did not control, PLC no-output KA3, thus contactor KM1 no electric circuit, the normally opened contact release of KM1; When just changeing, contactor KM2 adhesive is connected, and blower motor M power frequency is just being transported row at full speed; During counter-rotating, contactor KM4 adhesive is connected, the operation of reversing at full speed of blower motor M power frequency.Control on the spot that the PLC classical control system is integrated, tele-control system, can control nominal situation and fire working respectively, but run under the emergency work condition of fire, and the PLC control system is malfunctioning, control and tele-control system are all malfunctioning so on the spot, can start this moment by opening control system by force, in the drawings as can be seen, blower fan and PLC system independence under the strong starting system control mode, irrelevant with frequency converter B P, as long as the circuit breaker Q F1 in the control gear, positive contactor KM2 of power frequency and power frequency counter-rotating contactor KM4 can proper functioning, and this moment, blower fan just can be realized on the spot under strong starting system or long-range power frequency is just being transported row or the power frequency counter-rotating moves, by strong starting system the strong wind machine is moved at crucial moment, play the fire-fighting smoke evacuation and send new wind action.
Below in conjunction with circuit diagram working principle is described: as shown in Figure 3, Figure 4, Fig. 3 is that main circuit diagram, Fig. 4 are control circuit figure.Working principle under the PLC normal mode of operation: the PLC system can require output VFC pattern and power frequency control mode according to program.Under BAS nominal situation mode of operation, PLC control output auxiliary reclay KA3 energising, KA3 normally opened contact energising adhesive, the energising of VFC branch road, i.e. 3 energisings of branch road among Fig. 4, contactor KM1 energising, the main contact adhesive of contactor KM1 in the main circuit is the ready work of converting operation.PLC control output auxiliary reclay KA1 energising then, the normally opened contact adhesive of KA1, the frequency converter B P control in the main circuit is just changeed, the normally opened contact adhesive of frequency converter B P, branch road 4 energisings, this moment, fan frequency conversion was just transported row; If PLC control output auxiliary reclay KA2 energising, the normally opened contact adhesive of KA2, the frequency converter B P control inversion in the main circuit, the normally opened contact adhesive of frequency converter B P, branch road 4 energisings, frequency converter B P control inversion, fan frequency conversion counter-rotating operation this moment so.
At BAS(environment and equipment monitoring system) under the fire working pattern, just transporting row if want the blower fan power frequency, PLC system control blower fan at first frequency conversion is just changeing startup, fan frequency conversion just changeing start finish after, PLC controls output auxiliary reclay KA3 once more, the KA3 normally opened contact becomes disconnection by closure, branch road 3, branch road 4 disconnect, contactor KM1 outage, and the main contact of the contactor KM1 in the main circuit becomes release by adhesive, frequency converter B P does not control, frequency converter B P normally opened contact by adhesive to discharging.Auxiliary reclay KA5 is exported in PLC control then, the normally opened contact adhesive of KA5, and branch road 1 energising in the control circuit, contactor KM2 energising, the normally opened contact adhesive of the contactor KM2 in the main circuit, this moment, the blower fan power frequency was just transported row; If want blower fan power frequency counter-rotating operation, the control fan frequency conversion counter-rotating of PLC system starts, after fan frequency conversion counter-rotating startup finished, PLC controlled output auxiliary reclay KA3 once more, and the KA3 normally opened contact becomes disconnection by closure, branch road 3, branch road 4 disconnect, contactor KM1 outage, the main contact of the contactor KM1 in the main circuit becomes release by adhesive, and frequency converter B P does not control, frequency converter B P normally opened contact by adhesive to discharging, the main contact of the contactor KM1 in the main circuit by adhesive to release.Auxiliary reclay KA6 is exported in PLC control then, the normally opened contact adhesive of KA6, and branch road 2 energisings, contactor KM4 energising, the normally opened contact adhesive of contactor KM4 in the main circuit, this moment, the counter-rotating of blower fan power frequency moved.
When the PLC of control gear system breaks down, move under uncontrollable fan frequency conversion or the power frequency pattern at this moment, will move by opening control system by force so.Among Fig. 4 SA1 be on the spot/remote control switch, under control switch SA1 gets on the spot state, contact 1,2 conductings of SA1, by pressing positive control normal open switch SB2 on the spot, contactor KM2 energising, the normally opened contact adhesive of KM2, this moment, the blower fan power frequency was just transported row, control normally closed switch SB1 on the spot by pressing, stop blower fan and just transporting row; Control normal open switch SB3 on the spot by pressing, contactor KM4 energising, the normally opened contact adhesive of KM4, this moment, blower fan power frequency counter-rotating operation was controlled normally closed switch SB1 on the spot by pressing SB1, stopped blower fan counter-rotating operation.
When control switch SA1 gets under the remote status, contact 3,4 conductings of SA1 are by pressing telecontrol normal open switch SC2, contactor KM2 energising, KM2 normally opened contact energising adhesive, this moment, the blower fan power frequency was just transported row, by pressing telecontrol normally closed switch SC1, stop blower fan and just transporting row; By pressing telecontrol normal open switch SC3, contactor KM4 switches on, the normally opened contact adhesive of KM4, and blower fan power frequency counter-rotating operation this moment by pressing SC1 telecontrol normally closed switch SC1, stops the blower fan counter-rotating and moves.
When system just often, when promptly not needing strong starting system, the circuit breaker Q of closing F3, the D1 of circuit breaker Q F3, D2 contacting, auxiliary reclay KA4 energising, the normally-closed contact of KA4 disconnects, and opens circuit by force and disconnects, and closes strong starting system.
The operation and the PLC system independence of the blower fan under the strong starting system control mode, irrelevant with frequency converter B P, as long as the circuit breaker Q F1 in the control gear, the positive contactor KM2 of power frequency and power frequency counter-rotating contactor KM4 can proper functioning, this moment, blower fan just can be realized on the spot under strong starting system or long-range power frequency is just being transported row or the power frequency counter-rotating moves, by strong starting system the strong wind machine is moved at crucial moment, play the fire-fighting smoke evacuation and send new wind action.
Claims (1)
1. subway tunnel blower fan control system, comprise main circuit, PLC control circuit and open control circuit by force, it is characterized in that: described main circuit comprises three phase mains live wire L1, L2, L3, three-phase breaker QF, frequency converter B P, contactor KM1, KM2, KM4, motor M, the main contact of described three-phase breaker QF, frequency converter B P, contactor KM1 is connected across between three live wire L1, L2, the L3 successively, and the output of the main contact of contactor KM1 connects the input of motor M; Contactor KM2 in parallel and contactor KM4 respectively between the main contact output terminal of the output terminal of three-phase breaker QF1 and contactor KM1;
Described PLC control circuit comprises circuit breaker Q F2, contactor KM1, KM2, KM4, auxiliary reclay KA4, KA9, KA10, zero line N;
Between the input end of the input termination circuit breaker Q F1 of described circuit breaker Q F2, the output terminal of circuit breaker Q F2 and zero line N a loop in parallel is arranged;
The branch road 1 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM4, the normally-closed contact of contactor KM1, the contactor KM2 of auxiliary reclay KA5, the input end of the normally opened contact of KA5 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM2 links to each other with zero line N;
The branch road 2 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM1, the contactor KM4 of auxiliary reclay KA6, the input end of the normally opened contact of KA6 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM4 links to each other with zero line N;
The branch road 3 of described shunt circuit is composed in series by normally opened contact, the normally-closed contact of contactor KM2, the normally-closed contact of contactor KM4, the contactor KM1 of auxiliary reclay KA3, the input end of the normally opened contact of KA3 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of contactor KM1 links to each other with zero line N;
The branch road 4 of described shunt circuit comprises auxiliary reclay KA9, KA10, normally opened contact, the auxiliary reclay KA10 of the normally opened contact of auxiliary reclay KA1, auxiliary reclay KA9 series connection back and auxiliary reclay KA2 form a little shunt circuit, the normally opened contact of the normally opened contact of frequency converter B p, auxiliary reclay KA3 is connected with this little shunt circuit, the input end of the normally opened contact of frequency converter B P links to each other with the output terminal of circuit breaker Q F2, and the output terminal of auxiliary reclay KA9, KA10 links to each other with zero line N;
The branch road 5 of described shunt circuit comprises an auxiliary reclay KA4, and the input end of KA4 links to each other with the output terminal of circuit breaker Q F2, and the output terminal of KA4 links to each other with zero line N;
The D1 contact that is connected PLC power supply power supply circuit breaker Q F3 between the input end of the input end of described branch road 4 and branch road 5 is connected the D2 contact of circuit breaker Q F3 between the output terminal of the output terminal of described branch road 4 and branch road 5, described D1, D2 contact are the contact of linking;
The described circuit that opens by force is made up of control circuit and circuit for remotely controlling on the spot, comprises on the spot/remote control switch SA1 auxiliary reclay KA4; Described SA1 comprises contact 1,2,3,4, and the input end of the normally-closed contact of auxiliary reclay KA4 is connected with the output terminal of circuit breaker Q F2, and the output terminal of the normally-closed contact of KA4 is connected with 1,3 contacts of SA1 respectively; On the spot/and the contact of remote control switch SA1 1,2 is closed to be state of a control on the spot, contact 3,4 closures of SA1 are the telecontrol state;
Described control circuit on the spot comprises controls normally closed switch SB1 on the spot, control normal open switch SB2 on the spot, SB3, the contact 2 of described SA1 is connected with the input end of controlling normally closed switch SB1 on the spot, the output terminal of controlling normally closed switch SB1 on the spot respectively with the input end of controlling normal open switch SB2 on the spot, the input end of the normally-closed contact of contactor KM2, control the input end of normal open switch SB3 on the spot, the input end of the normally-closed contact of contactor KM4 connects, the output terminal of SB2, the output terminal of the normally-closed contact of KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the output terminal of SB3, the normally-closed contact of KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other;
Described circuit for remotely controlling comprises telecontrol normally closed switch SC1, telecontrol normal open switch SC2, SC3, the contact 4 of described SA1 is connected with the input end of SC1, the output terminal of SC1 is connected with the input end of the normally opened contact of the input end of the input end of the normally opened contact of the input end of SC2, contactor KM2, SC3, contactor KM4 respectively, the output terminal of the normally opened contact of the output terminal of SC2, contactor KM2 all with the PLC control circuit in parallel branch 1 in the input end of normally-closed contact of contactor KM1 link to each other; The output terminal of the normally opened contact of the output terminal of SC3, contactor KM4 all with the PLC control circuit in parallel branch 2 in the input end of normally-closed contact of contactor KM1 link to each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110227649.3A CN102251980B (en) | 2011-08-10 | 2011-08-10 | Subway tunnel fan control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110227649.3A CN102251980B (en) | 2011-08-10 | 2011-08-10 | Subway tunnel fan control system |
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| CN102251980A true CN102251980A (en) | 2011-11-23 |
| CN102251980B CN102251980B (en) | 2014-04-09 |
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| CN201110227649.3A Active CN102251980B (en) | 2011-08-10 | 2011-08-10 | Subway tunnel fan control system |
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| CN104456813A (en) * | 2014-10-17 | 2015-03-25 | 成都四为电子信息股份有限公司 | Air supply and exhaust monitoring system and method for railway station house |
| CN106765941A (en) * | 2016-12-16 | 2017-05-31 | 山东金洲科瑞节能科技有限公司 | A kind of central air-conditioning Fresh air handling units control system for monitoring real time energy consumption |
| CN106992666A (en) * | 2017-05-10 | 2017-07-28 | 中信重工开诚智能装备有限公司 | A kind of control system for explosion-proof high-pressure frequency converter |
| CN107179722A (en) * | 2017-07-06 | 2017-09-19 | 江苏新扬机电设备有限公司 | A kind of third gear actuator control module for air conditioner |
| CN107676285A (en) * | 2017-09-30 | 2018-02-09 | 四川德胜集团钒钛有限公司 | A kind of frequency conversion control device for annular cooling blower and method |
| CN109519403A (en) * | 2018-12-14 | 2019-03-26 | 山东凯莱电气设备有限公司 | A kind of fire-fighting linkage blower fan control device |
| CN110529418A (en) * | 2019-08-29 | 2019-12-03 | 浙江万可电气设备有限公司 | Underground fan control cabinet and control system |
| CN110715389A (en) * | 2019-10-11 | 2020-01-21 | 福州市规划设计研究院 | Ventilation system suitable for gas fire extinguishing protection area and system control box thereof |
| CN111878441A (en) * | 2020-09-01 | 2020-11-03 | 河南艾牧智能设备有限公司 | Fan safe operation control system for livestock and poultry house |
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| CN107676285A (en) * | 2017-09-30 | 2018-02-09 | 四川德胜集团钒钛有限公司 | A kind of frequency conversion control device for annular cooling blower and method |
| CN109519403A (en) * | 2018-12-14 | 2019-03-26 | 山东凯莱电气设备有限公司 | A kind of fire-fighting linkage blower fan control device |
| CN110529418A (en) * | 2019-08-29 | 2019-12-03 | 浙江万可电气设备有限公司 | Underground fan control cabinet and control system |
| CN110529418B (en) * | 2019-08-29 | 2020-07-10 | 浙江万可电气设备有限公司 | Subway fan control cabinet and control system |
| CN110715389A (en) * | 2019-10-11 | 2020-01-21 | 福州市规划设计研究院 | Ventilation system suitable for gas fire extinguishing protection area and system control box thereof |
| CN111878441A (en) * | 2020-09-01 | 2020-11-03 | 河南艾牧智能设备有限公司 | Fan safe operation control system for livestock and poultry house |
| CN113983671A (en) * | 2021-12-08 | 2022-01-28 | 徐州工业职业技术学院 | Air supply control system for fire fighting of building |
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Denomination of invention: Subway tunnel fan control system Effective date of registration: 20190912 Granted publication date: 20140409 Pledgee: Zhejiang Tailong Commercial Bank Co., Ltd. Shaoxing Shangyu Small and Micro Enterprise Franchised Branch Pledgor: Zhejiang Wanke Electrical Equipment Co.,Ltd. Registration number: Y2019330000063 |
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