CN105649770A - Interlocking device used for diesel power generation system and standby power supply of diesel power generation system - Google Patents
Interlocking device used for diesel power generation system and standby power supply of diesel power generation system Download PDFInfo
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- CN105649770A CN105649770A CN201610019651.4A CN201610019651A CN105649770A CN 105649770 A CN105649770 A CN 105649770A CN 201610019651 A CN201610019651 A CN 201610019651A CN 105649770 A CN105649770 A CN 105649770A
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- cabinet
- exchange box
- released
- generation system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention provides an interlocking device used for a diesel power generation system and used when the diesel power generation system is used as a standby power supply. The interlocking device used for the diesel power generation system comprises an air inlet valve, an air compressor starting valve, a circuit breaker, a key and an exchange box matched with the key, an isolation switch and an earthing switch. The maintenance working condition of the diesel power generation system is similar to those of a medium voltage wire inlet system and a low voltage system. The interlocking device used when the diesel power generation system is used as the standby power supply comprises the circuit breaker, the key and the exchange box matched with the key.
Description
Technical field
The present invention relates to a kind of for diesel generation system and as interlocking gear during standby power supply, particularly relate to a kind of for preventing the interlocking device of switch cabinet of Nuclear power plants diesel generation system misoperation.
Background technology
In Nuclear power plants, standby diesel-generator unit is a set of important system, when other power supply owing to certain external cause or factor own produce fault, can not for electric installation or system power supply is provided time, standby diesel-generator unit starts as standby power supply, make Core cooling, the safe shutdown of reactor. But for guaranteeing that the order as requested that oil electric engine for subsequent use can be correct starts, it is necessary to arranging emergency diesel-oil power generation system interlocking, follow procedure operation accurately prevents mishandle, ensures that nuclear plant safety runs. As Nuclear safety emergency power supply system, diesel engine for subsequent use be the last a set of power supply system of Nuclear power plants, standby diesel-generator unit plays huge effect when power supply for station and accessory power supply generation fault. So the interlocking for Nuclear power plants emergency diesel dynamo designs, for nuclear reactor provides stable, reliable, safe, enough power supply. In diesel generation system works, the ripe perfect interlocking of configuration ensures that the order according to regulation that diesel-electric set electric supply system is correct starts, and prevents the appearance of mishandle.
Summary of the invention
The present invention mainly provides a kind of for diesel generation system and as the interlocking gear of standby power supply, it is possible to effectively solve the problem.
For an interlocking gear for diesel generation system, comprise air inlet valve, air compressor starting valve, isolating switch, key and the exchange box mated mutually with key, isolator, grounding switch. Described interlocking gear carries out maintenance operating mode operation according to the following step:
(1) the first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel generation system is disconnected, it is locked in off-position, discharges the first key XC and the 2nd key XD;
(2) the first key XC and the 2nd key XD is inserted in the first exchange box 0LHS001CV, discharge the 3rd key XP, disconnect the first air compressor starting valve 275VA and the signal of the 2nd air compressor starting valve 276VA simultaneously, the signal closed can be sent to instrument control case, and then it is sent to master control room, now plant area's generating set can not start, described diesel generation system stalls;
(3) described 3rd key XP is operated in the 2nd exchange box OLHM101CV, now discharge the 4th key XP1 because described 3rd key XP is locked, described 4th key XP1 is inserted into diesel engine lead-in circuit breaker grounding switch place, unlock a point lock, grounding switch closes a floodgate to lock and closes a floodgate, release the 5th key B;
(4) being operated to by described 5th key B in the 3rd exchange box 0LHM102CV, described 5th key B is locked, and the 6th key XY, the 7th key XB and the 8th key XV are released;
(5) described 7th key XB is inserted in generator and presses excitation cabinet 0LHS952AR place, open the maintenance of cabinet door; Described 8th key XV is inserted into generator neutral point earthing terminal case 0LHS901CR place, opens the maintenance of case door;
(6) transformer OLLT002TR is overhauled.
Described interlocking gear according to the following step carry out low pressure put into operation operating mode operation:
(1) with the 9th key XS, the 2nd isolating switch 0LHM002JA is closed a floodgate, grounding switch tripping, locking grounding switch tripping position;
(2) excitation cabinet 0LHS952AR being pressed in described generator to lock, release the 7th key XB, locks described generator neutral point connection terminal case 0LHS901CR, release the 8th key XV;
(3) by described 6th key XY, 7th key XB and the 8th key XV inserts in described 3rd exchange box 0LHM102CV, discharge described 5th key B, described 5th key B is operated diesel engine lead-in circuit breaker grounding switch place, unlock and close a floodgate, the grounding switch tripping described 4th key XP1 of release, is inserted into described 4th key XP1 in described 2nd exchange box 0LHM101CV and obtains described 3rd key XP;
(4) described 3rd key XP is inserted into described first exchange box 0LHS001CV in obtain described first key XC and the 2nd key XD, described first key XC and the 2nd key XD is inserted in the described first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel engine, unlock closed valve, open valve, described first key XC and the 2nd key XD can not be pulled out out, now, the blackout being sent to instrument control case and master control room, described diesel generation system normal starting after receiving start signal.
Described interlocking gear according to the following step carry out middle pressure put into operation operating mode operation:
(1) dividing lock, ground switch earthing by the 2nd isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TB, locking grounding switch closing position, obtains described 9th key XS;
(2) the first starting air inlet valve 250 of described diesel engine and the 2nd starting air inlet valve 251VA are disconnected, it is locked in off-position, discharges described first key XC and described 2nd key XD;
(3) described first key XC and the 2nd key XD is inserted in described first exchange box 0LHS001CV, described 3rd key XP in release, the signal that described first air compressor starting valve 275V and the 2nd air compressor starting valve 276VA disconnects is sent to instrument control case simultaneously, and then it is sent to master control room, now engine generator set stopping work;
(4) by described for described 3rd XP insertion the 2nd exchange box OLHM101CV, discharging described 4th key XP1, described 4th key XP1 is inserted into switch place, ground, isolating switch unlocks a point lock, and grounding switch locking is closed a floodgate, and obtains described 5th key B;
(5) described 5th key B is inserted in described 3rd exchange box 0LHM102CV, discharges described 6th key XY, the 7th key XB and the 8th key XV;
(6) described 6th key XY is inserted into communication plug box place, opens door, plug plug and select 1 ~ 2# unit plug, lock the door, fetch described 6th key XY; Described 7th key XB is inserted in described middle pressure excitation cabinet 0LHS952AR, and opens door and operate;Described 8th key XV is inserted in described generator neutral point connection terminal case 0LHS901CR, and opens door and operate;
(7) described 6th key XY and the 9th XS is inserted into the 4th exchange box 0LHM001CV in release the tenth key HM1, open the 3rd isolating switch 0LHM003JA cabinet door of OLHM to 1 ~ 2# unit 9LHT, the dolly of described 3rd isolating switch is pushed away into;
(8) the 11 key 1X and the 12 2HT of 1 ~ 2# unit is taken out from main control room, and described 11 key 1X and the 12 key 2HT is inserted in the 5th exchange box 0LHM002CV, discharge the 13 key 2B, described 13 key 2B is inserted into the described 3rd isolating switch 0LHM003JA place of OLHM to 1 ~ 2# unit 9LHT, the described dolly of described 3rd isolating switch can being pushed into working position, now the 13 key 2B cannot extract;
(9) on cabinet door lock by the 3rd isolating switch 0LHM003JA described in 0LHM001TB to 1 ~ 2# unit 9LHT, discharge described tenth key HM1, described tenth key HM1 is inserted in the 4th exchange box 0LHM001CV and discharges described 6th key XY and the 9th key XS;
(10) with described 6th key XS, the described 2nd isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TR is closed a floodgate, grounding switch tripping, locking grounding switch tripping position;
(11) by described generator being pressed excitation cabinet 0LHS952AR place lock, discharge described 7th key XB, described generator neutral point connection terminal case 0LHS901CR is locked, discharges described 8th key XV;
(12) by described 6th key XY, 7th key XB and the 8th key XV inserts in described 3rd exchange box 0LHM102CV, discharge described 5th key B, described 5th key B is inserted into described 0LHM001JA first isolating switch and unlocks combined floodgate, grounding switch locking point lock obtains described 4th key XP1, is inserted into by described 4th key XP1 in described 2nd exchange box 0LHM101CV and obtains described 3rd key XP;
(13) described 3rd key XP is inserted into described first exchange box 0LHS001CV in obtain described first key XC and the 2nd key XD; Described first key XC and the 2nd key XD is inserted in the described first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel engine, unlock valve-off, open valve, now described first key XC and the 2nd key XD can pull out out, so that be sent to the blackout of instrument control case and master control room, described diesel generation system normal starting after receiving start signal.
The present invention also provides a kind of diesel generation system as the interlocking gear of standby power supply further, comprises isolating switch, key and the exchange box mated mutually with key. It is characterized in that: described interlocking gear is according to following step operation:
(1) with from operation long the key 2HT taken, XU, described key 2HT and XU inserting key exchange box 9LHT003CV and rotates, described key 2HT, XU are caught, simultaneously key 11HT, and 12HT, 13HT, 14HT are released;
(2) the described key 11HT of release from working order 1,12HT, 13HT, 14HT and the described key 11X looked from operation, insertion key exchanges box 9LHT001CV, rotate described key 11X, 11HT, 12HT, 13HT, 14HT so that these keys are caught, key 9LHT2 is released simultaneously;
(3) described key 9LHT2 and the key ET1 collected from operation strong point being inserted into described oil electric engine incoming line cabinet exchanges box 9LHT101CV;Rotate described key 9LHT2, ET1, these two keys caught while key A1, A11 is released; Then unlocking this incoming line cabinet isolation car with described key A1, insertion isolation car, key BBT is released, and the car of this cabinet isolation simultaneously is locked in working position; Described key BBT, A11 are inserted central key box 9LHT002CV and rotates, obtain key 9LHT1; Key 1X is released and can be used for starter-generator simultaneously;
(4) open 05 cabinet door and remove isolation car; This isolation car is inserted 1LHA; Shut the cabinet door of 1LHA incoming line cabinet;
(5) inserting key ET2, the 3rd step operates the key 9LHT1 obtained, and the key 19HA that operation strong point obtains exchanges box 9LHT201CV to key; Rotating key ET2,9LHT1,19HA, while these 3 keys are caught, A2, A21 key is released;
(6) key A2 is inserted 02 cabinet isolation lock hole place and rotates, now isolate car unblock and can insert, after insertion isolation car, key A2 is caught, now key BBT can use, by key BBT, A21 is inserted into central key box 9LHT202CV and rotates, and these two keys are caught, and now key 12HT is released;
(7) key 12HT being inserted into key exchange box 9LHT203CV and rotates, this key is caught, and obtains key G simultaneously;
(8) key G being inserted into lockhole between 01 cabinet low pressure and rotate, now cabinet door can be opened and key is caught, and opens door between low pressure, is connected by Secondary socket 9LHT002PJ and 1LHA0012PJ plug;
(9) shut cabinet door between 01 cabinet low pressure, after lock Over-The-Counter door, obtain key G;
(10) reinsert key G and exchange box 9LHT203CV to key, rotate and obtain 12HT;
(11) in 1LHA bus section, extracting the 1LHA001JA in 1LGB out, release B, B inserts this cabinet exchange box and rotates, B is caught, and 2B, 3HA are released simultaneously; Key 2B and 3HA is kept in the long hand of operation to prevent having people that the isolating switch on side is injected this cabinet when falling electricity;
(12) in 1LHA bus section, extract 1LHA002JA, A out and it is released; Key A inserting this cabinet key exchange box and rotates, key A is caught, simultaneously key 1P and 1HA(1) it is released; By described key 1HA(1) insert 1LHA003JA key hole with described key 12HT and rotate, these 2 keys are caught simultaneously key D and are released; Described key D being inserted into 1LHA003JA circuit breaker cart key hole and rotates, 1LHA002JA is inserted into 1LHA003JA, after isolating switch inserts, key D is caught;
(13) after 1LHA isolating switch closes, the electrical connection of incoming line cabinet 9LHT and intermediate distribution system 1LHA has just been set up.
Designed by above-mentioned step, machinery locking is set and can effectively guarantee the safety that Nuclear power plants runs, electric installation is forced according to the correct safety operation of program formulated by operation personnel, thus effectively avoids misoperation occurring, whole system reliability service of trying hard to keep. The design of described step meets power system " five prevent " requirement, exchanges the higher security of nuclear power plant for by the design of rigorous step. Meanwhile, described interlocking method design is also more effectively simple relative to the anti-error measure of other modes, directly with reliable.
Accompanying drawing explanation
Fig. 1 be a kind of diesel generation system with in be pressed into the connection principle figure of wire system, low pressure wire inlet system.
Fig. 2 be described diesel generation system and low pressure, in be pressed into the interlocking figure of wire system.
Fig. 3 is described diesel generation system overhaul operating mode operating process figure.
Fig. 4 is that described diesel generation system and low pressure wire inlet system put into operation operating mode operating process figure.
Fig. 5 be described diesel generation system with in be pressed into wire system and put into operation operating mode operating process figure.
Fig. 6 be a kind of diesel generation system as during standby power supply with emergent in be pressed into the electrical connection diagram of wire system.
Fig. 7 is the diesel generation system power supply interlocking figure as backup power source.
Fig. 8 is the diesel generation system operational flow diagram as backup power source.
Fig. 9 is the diesel generation system upstream interlocking figure as backup power source.
Embodiment
Please refer to Fig. 1, Fig. 1 provides a kind of diesel generation system with in be pressed into the connection principle figure of wire system, low pressure wire inlet system. Fig. 2 with the addition of Mechanically programm's lock on the basis of Fig. 1 electrical connection, namely Fig. 2 be described diesel generation system and low pressure, in be pressed into the interlocking figure of wire system. Illustrate described diesel generation system overhaul operating mode operating process in figure 3, specific as follows:
The first step: the starting air inlet valve 250/251VA of 0LHS diesel engine is disconnected, is locked in off-position, release key XC, XD;
2nd step: XC, XD are inserted into and exchange in box 0LHS001CV, release key XP, disconnects air compressor starting valve 275VA simultaneously, and the signal of 276VA, is sent to instrument control case, is being sent to master control room, and now plant area's generating set can not start, and system is unavailable;
3rd step: XP being operated and exchanges in box OLHM101CV, XP is locked and discharges key XP1. XP1 being inserted into diesel engine lead-in circuit breaker grounding switch place, unlocks a point lock, grounding switch closes a floodgate to lock and closes a floodgate, release key B;
4th step: being operated by B and exchange in box 0LHM102CV, key B is locked, key XY, and XB, XV are released;
5th step: be inserted in generator by key XB and press excitation cabinet 0LHS952AR place, can open the maintenance of cabinet door; Key XV is inserted into generator neutral point earthing terminal case 0LHS901CR place, the maintenance of case door can be opened;
6th step: maintenance transformer OLLT002TR.
Illustrate described diesel generation system in the diagram and low pressure wire inlet system puts into operation operating mode operating process, specific as follows:
The first step: the isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TR is closed a floodgate with key XS, grounding switch tripping, locking grounding switch tripping position;
2nd step: excitation cabinet 0LHS952AR place will be pressed in generator to lock, release key XB, locks generator neutral point connection terminal case 0LHS901CR, release key XV;
3rd step: by key XY, XB, XV insert key and exchange in box 0LHM102CV, and release B, operates diesel engine lead-in circuit breaker grounding switch place by key B, unlocks and closes a floodgate, and grounding switch tripping release XP1, is inserted in 0LHM101CV by XP1 and obtains key XP;
4th step: XP is inserted in 0LHS001CV and obtains XC, XD. By key XC, XD is inserted into the starting air inlet valve 250VA of 0LHS diesel engine, in 251VA, unlocks valve-off, opens valve, key XC, and XD can not pull out, and is sent to the blackout of instrument control case and master control room, can normal starting after receiving start signal.
Illustrate in Figure 5 described diesel generation system with in be pressed into wire system and put into operation operating mode operating process, specific as follows:
The first step: divide lock, ground switch earthing by the isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TB, locking grounding switch closing position, obtains key XS;
2nd step: the starting air inlet valve 250/251VA of 0LHS diesel engine is disconnected, is locked in off-position, release key XC, XD;
3rd step: XC, XD are inserted in 0LHS001CV, release key XP, the signal simultaneously air compressor starting valve 275VA, 276VA disconnected, is sent to instrument control case, is being sent to master control room, and now engine generator set is unavailable;
4th step: XP is inserted in OLHM101CV, release key XP1. XP1 is inserted into switch place, ground, and isolating switch unlocks a point lock, and grounding switch locking is closed a floodgate, and obtains key B;
5th step: B is inserted in 0LHM102CV, release key XY, XB, XV;
6th step: key XY is inserted into communication plug box place, opens door, plugs plug and selects 1 ~ 2# unit plug, lock the door, fetch key XY; Key XB is inserted into middle pressure excitation cabinet 0LHS952AR and opens door, operate; XV is inserted into 0LHS901CR and opens door, operate;
7th step: XY and XS is inserted in 0LHM001CV and discharges HM1, open the isolating switch 0LHM003JA cabinet door of OLHM to 1 ~ 2# unit 9LHT, circuit breaker trolley is pushed away into;
8th step: take out 1 ~ 2# unit key 1X from main control room, 2HT, and key is inserted into key and exchanges in box 0LHM002CV, release key 2B, the isolating switch place being inserted into OLHM to 1 ~ 2# unit 9LHT, can be pushed into working position by circuit breaker trolley, and key 2B cannot extract;
9th step: by, on 0LHM001TB to 1 ~ 2# unit 9LHT isolating switch 0LHM003JA cabinet door lock, release HM1, is inserted in 0LHM001CV by key and discharges XY, XS;
Tenth step: the isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TR is closed a floodgate with key XS, grounding switch tripping, locking grounding switch tripping position;
11 step: excitation cabinet 0LHS952AR place will be pressed in generator to lock, release key XB, locks generator neutral point connection terminal case 0LHS901CR, release key XV;
12 step: key XY, XB, XV are inserted key and exchanges in box 0LHM102CV, release B, B is inserted into 0LHM001JA isolating switch and unlocks combined floodgate, grounding switch locking point lock obtains XP1, is inserted in 0LHM101CV by XP1 and obtains XP;
13 step: XP is inserted in 0LHS001CV and obtains XC, XD; The starting air inlet valve 250VA that XC, XD are inserted into 0LHS diesel engine, in 251VA, unlocks valve-off, opens valve, key XC, and XD can not pull out, and is sent to the blackout of instrument control case and master control room, can normal starting after receiving start signal.
Fig. 6 illustrate diesel generation system as during standby power supply with emergent in be pressed into the electrical connection of wire system. Fig. 7 with the addition of Mechanically programm's lock on the electrical connection basis of Fig. 6, and namely the described diesel generation system power supply as backup power source is interlocked. Fig. 8 illustrates the described diesel generation system operation flow process as backup power source, and it is specific as follows:
The first step, with the key 2HT taken from operation strong point, XU, inserts described key 2HT and XU key exchange box 9LHT003CV and rotates, and described key 2HT, XU are caught, simultaneously key 11HT, and 12HT, 13HT, 14HT are released;
2nd step, the described key 11HT of release from working order 1,12HT, 13HT, 14HT and the described key 11X looked from operation, insertion key exchanges box 9LHT001CV. Rotating described key 11X, 11HT, 12HT, 13HT, 14HT so that these keys are caught, key 9LHT2 is released simultaneously;
3rd step, is inserted into described oil electric engine incoming line cabinet described key 9LHT2 and the key ET1 collected from operation strong point and exchanges box 9LHT101CV; Rotate described key 9LHT2, ET1, these two keys caught while key A1, A11 is released; Then unlocking this incoming line cabinet isolation car with described key A1, insertion isolation car, key BBT is released, and the car of this cabinet isolation simultaneously is locked in working position; Described key BBT, A11 are inserted central key box 9LHT002CV and rotates, obtain key 9LHT1; Key 1X is released and can be used for starter-generator simultaneously;
4th step, opens 05 cabinet door and removes isolation car; This isolation car is inserted 1LHA; Shut the cabinet door of 1LHA incoming line cabinet;
5th step, insertion key ET2, the 3rd step operates the key 9LHT1 obtained, and the key 19HA that operation strong point obtains exchanges box 9LHT201CV to key; Rotating key ET2,9LHT1,19HA, while these 3 keys are caught, A2, A21 key is released;
6th step, inserts key A2 02 cabinet isolation lock hole place and rotates, now isolate car unblock and can insert. After insertion isolation car, key A2 is caught, and now key BBT can use, and by key BBT, A21 is inserted into central key box 9LHT202CV and rotates, and these two keys are caught, and now key 12HT is released;
7th step, is inserted into key 12HT key exchange box 9LHT203CV and rotates, and this key is caught, and obtains key G simultaneously;
8th step, is inserted into key G lockhole between 01 cabinet low pressure and rotates, and now cabinet door can be opened and key is caught. Open door between low pressure, Secondary socket 9LHT002PJ and 1LHA0012PJ plug is connected;
9th step, shuts cabinet door between 01 cabinet low pressure, obtains key G after lock Over-The-Counter door;
Tenth step, reinserts key G and exchanges box 9LHT203CV to key, rotate and obtain 12HT;
11 step, in 1LHA bus section, extracts the 1LHA001JA in 1LGB out, release B. B inserting this cabinet exchange box and rotates, B is caught, and 2B, 3HA are released simultaneously; Key 2B and 3HA is kept in the long hand of operation to prevent having people that the isolating switch on side is injected this cabinet when falling electricity;
12 step, in 1LHA bus section, extracts 1LHA002JA, A out and is released; Key A inserting this cabinet key exchange box and rotates, key A is caught, simultaneously key 1P and 1HA(1) it is released; By described key 1HA(1) insert 1LHA003JA key hole with described key 12HT and rotate, these 2 keys are caught simultaneously key D and are released; Described key D being inserted into 1LHA003JA circuit breaker cart key hole and rotates, 1LHA002JA is inserted into 1LHA003JA, after isolating switch inserts, key D is caught;
13 step, after 1LHA isolating switch closes, the electrical connection of incoming line cabinet 9LHT and intermediate distribution system 1LHA has just been set up.
Further, 1LGB normal power supply for station grounding switch key lock 6B is through the complicated switching device of 1LGB upstream, when their circuit breaker cart is drawn out, key can be released, when a series of isolating switchs is drawn out of time, be released with regard to having a series of keys, 1LHA circuit breaker cart extract out time, 6B inserts grounding switch key hole type lock and lives, and now grounding switch is in closing position.
Further, Fig. 9 illustrates emergency diesel-oil generating upstream interlocking. When the starting air inlet valve of emergency diesel dynamo cuts out, discharge key 7P, 8P, key 7P, 8P being inserted into and exchange box 1LHP401CV, rotate key 7P, 8P, now key 7P, 8P is locked, key 3P is released, when key 3P is inserted into the grounding switch key hole of 1LHP incoming line cabinet, rotate key 3P, locked, and key 4P is released, 4P is the key of middle pressure excitation cabinet cabinet door.
Note, above are only the better embodiment of the present invention and institute's application technology principle. It is understood by those skilled in the art that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and protection scope of the present invention can not be departed from. Therefore, although being described in further detail invention has been by above embodiment, but the present invention is not limited only to above embodiment, when not departing from present inventive concept, other equivalence embodiments more can also be comprised, and the scope of the present invention is determined by appended right.
Claims (10)
1. for an interlocking gear for diesel generation system, comprise air inlet valve, air compressor starting valve, isolating switch, key and the exchange box mated mutually with key, isolator, grounding switch, it is characterised in that: described interlocking gear carries out maintenance operating mode operation according to the following step:
(1) the first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel generation system is disconnected, it is locked in off-position, discharges the first key XC and the 2nd key XD;
(2) the first key XC and the 2nd key XD is inserted in the first exchange box 0LHS001CV, discharge the 3rd key XP, disconnect the first air compressor starting valve 275VA and the signal of the 2nd air compressor starting valve 276VA simultaneously, the signal closed can be sent to instrument control case, and then it is sent to master control room, now plant area's generating set can not start, described diesel generation system stalls;
(3) described 3rd key XP is operated in the 2nd exchange box OLHM101CV, now discharge the 4th key XP1 because described 3rd key XP is locked, described 4th key XP1 is inserted into diesel engine lead-in circuit breaker grounding switch place, unlock a point lock, grounding switch closes a floodgate to lock and closes a floodgate, release the 5th key B;
(4) being operated to by described 5th key B in the 3rd exchange box 0LHM102CV, described 5th key B is locked, and the 6th key XY, the 7th key XB and the 8th key XV are released;
(5) described 7th key XB is inserted in generator and presses excitation cabinet 0LHS952AR place, open the maintenance of cabinet door; Described 8th key XV is inserted into generator neutral point earthing terminal case 0LHS901CR place, opens the maintenance of case door;
(6) transformer OLLT002TR is overhauled.
2. interlocking gear according to claim 1, it is characterised in that: described interlocking gear according to the following step carry out low pressure put into operation operating mode operation:
(1) with the 9th key XS, the 2nd isolating switch 0LHM002JA is closed a floodgate, grounding switch tripping, locking grounding switch tripping position;
(2) excitation cabinet 0LHS952AR being pressed in described generator to lock, release the 7th key XB, locks described generator neutral point connection terminal case 0LHS901CR, release the 8th key XV;
(3) by described 6th key XY, 7th key XB and the 8th key XV inserts in described 3rd exchange box 0LHM102CV, discharge described 5th key B, described 5th key B is operated diesel engine lead-in circuit breaker grounding switch place, unlock and close a floodgate, the grounding switch tripping described 4th key XP1 of release, is inserted into described 4th key XP1 in described 2nd exchange box 0LHM101CV and obtains described 3rd key XP;
(4) described 3rd key XP is inserted into described first exchange box 0LHS001CV in obtain described first key XC and the 2nd key XD, described first key XC and the 2nd key XD is inserted in the described first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel engine, unlock closed valve, open valve, described first key XC and the 2nd key XD can not be pulled out out, now, the blackout being sent to instrument control case and master control room, described diesel generation system normal starting after receiving start signal.
3. interlocking gear according to claim 1, it is characterised in that: described interlocking gear according to the following step carry out middle pressure put into operation operating mode operation:
(1) dividing lock, ground switch earthing by the 2nd isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TB, locking grounding switch closing position, obtains described 9th key XS;
(2) the first starting air inlet valve 250 of described diesel engine and the 2nd starting air inlet valve 251VA are disconnected, it is locked in off-position, discharges described first key XC and described 2nd key XD;
(3) described first key XC and the 2nd key XD is inserted in described first exchange box 0LHS001CV, described 3rd key XP in release, the signal that described first air compressor starting valve 275V and the 2nd air compressor starting valve 276VA disconnects is sent to instrument control case simultaneously, and then it is sent to master control room, now engine generator set stopping work;
(4) by described for described 3rd XP insertion the 2nd exchange box OLHM101CV, discharging described 4th key XP1, described 4th key XP1 is inserted into switch place, ground, isolating switch unlocks a point lock, and grounding switch locking is closed a floodgate, and obtains described 5th key B;
(5) described 5th key B is inserted in described 3rd exchange box 0LHM102CV, discharges described 6th key XY, the 7th key XB and the 8th key XV;
(6) described 6th key XY is inserted into communication plug box place, opens door, plug plug and select 1 ~ 2# unit plug, lock the door, fetch described 6th key XY; Described 7th key XB is inserted in described middle pressure excitation cabinet 0LHS952AR, and opens door and operate; Described 8th key XV is inserted in described generator neutral point connection terminal case 0LHS901CR, and opens door and operate;
(7) described 6th key XY and the 9th XS is inserted into the 4th exchange box 0LHM001CV in release the tenth key HM1, open the 3rd isolating switch 0LHM003JA cabinet door of OLHM to 1 ~ 2# unit 9LHT, the dolly of described 3rd isolating switch is pushed away into;
(8) the 11 key 1X and the 12 2HT of 1 ~ 2# unit is taken out from main control room, and described 11 key 1X and the 12 key 2HT is inserted in the 5th exchange box 0LHM002CV, discharge the 13 key 2B, described 13 key 2B is inserted into the described 3rd isolating switch 0LHM003JA place of OLHM to 1 ~ 2# unit 9LHT, the described dolly of described 3rd isolating switch can being pushed into working position, now the 13 key 2B cannot extract;
(9) on cabinet door lock by the 3rd isolating switch 0LHM003JA described in 0LHM001TB to 1 ~ 2# unit 9LHT, discharge described tenth key HM1, described tenth key HM1 is inserted in the 4th exchange box 0LHM001CV and discharges described 6th key XY and the 9th key XS;
(10) with described 6th key XS, the described 2nd isolating switch 0LHM002JA of 0LHM001TB to 0LLT002TR is closed a floodgate, grounding switch tripping, locking grounding switch tripping position;
(11) by described generator being pressed excitation cabinet 0LHS952AR place lock, discharge described 7th key XB, described generator neutral point connection terminal case 0LHS901CR is locked, discharges described 8th key XV;
(12) by described 6th key XY, 7th key XB and the 8th key XV inserts in described 3rd exchange box 0LHM102CV, discharge described 5th key B, described 5th key B is inserted into described 0LHM001JA first isolating switch and unlocks combined floodgate, grounding switch locking point lock obtains described 4th key XP1, is inserted into by described 4th key XP1 in described 2nd exchange box 0LHM101CV and obtains described 3rd key XP;
(13) described 3rd key XP is inserted into described first exchange box 0LHS001CV in obtain described first key XC and the 2nd key XD; Described first key XC and the 2nd key XD is inserted in the described first starting air inlet valve 250VA and the 2nd starting air inlet valve 251VA of described diesel engine, unlock valve-off, open valve, now described first key XC and the 2nd key XD can pull out out, so that be sent to the blackout of instrument control case and master control room, described diesel generation system normal starting after receiving start signal.
4. for an interlocking gear for diesel generation system reserve power supply, comprise isolating switch, key and the exchange box mated mutually with key, it is characterised in that: described interlocking gear is according to following step operation:
(1) with from operation long the key 2HT taken, XU, described key 2HT and XU inserting key exchange box 9LHT003CV and rotates, described key 2HT, XU are caught, simultaneously key 11HT, and 12HT, 13HT, 14HT are released;
(2) the described key 11HT of release from working order 1,12HT, 13HT, 14HT and the described key 11X looked from operation, insertion key exchanges box 9LHT001CV, rotate described key 11X, 11HT, 12HT, 13HT, 14HT so that these keys are caught, key 9LHT2 is released simultaneously;
(3) described key 9LHT2 and the key ET1 collected from operation strong point being inserted into described oil electric engine incoming line cabinet exchanges box 9LHT101CV; Rotate described key 9LHT2, ET1, these two keys caught while key A1, A11 is released; Then unlocking this incoming line cabinet isolation car with described key A1, insertion isolation car, key BBT is released, and the car of this cabinet isolation simultaneously is locked in working position; Described key BBT, A11 are inserted central key box 9LHT002CV and rotates, obtain key 9LHT1; Key 1X is released and can be used for starter-generator simultaneously;
(4) open 05 cabinet door and remove isolation car; This isolation car is inserted 1LHA; Shut the cabinet door of 1LHA incoming line cabinet;
(5) inserting key ET2, the 3rd step operates the key 9LHT1 obtained, and the key 19HA that operation strong point obtains exchanges box 9LHT201CV to key; Rotating key ET2,9LHT1,19HA, while these 3 keys are caught, A2, A21 key is released;
(6) key A2 is inserted 02 cabinet isolation lock hole place and rotates, now isolate car unblock and can insert, after insertion isolation car, key A2 is caught, now key BBT can use, by key BBT, A21 is inserted into central key box 9LHT202CV and rotates, and these two keys are caught, and now key 12HT is released;
(7) key 12HT being inserted into key exchange box 9LHT203CV and rotates, this key is caught, and obtains key G simultaneously;
(8) key G being inserted into lockhole between 01 cabinet low pressure and rotate, now cabinet door can be opened and key is caught, and opens door between low pressure, is connected by Secondary socket 9LHT002PJ and 1LHA0012PJ plug;
(9) shut cabinet door between 01 cabinet low pressure, after lock Over-The-Counter door, obtain key G;
(10) reinsert key G and exchange box 9LHT203CV to key, rotate and obtain 12HT;
(11) in 1LHA bus section, extracting the 1LHA001JA in 1LGB out, release B, B inserts this cabinet exchange box and rotates, B is caught, and 2B, 3HA are released simultaneously; Key 2B and 3HA is kept in the long hand of operation to prevent having people that the isolating switch on side is injected this cabinet when falling electricity;
(12) in 1LHA bus section, extract 1LHA002JA, A out and it is released; Key A inserting this cabinet key exchange box and rotates, key A is caught, simultaneously key 1P and 1HA(1) it is released; By described key 1HA(1) insert 1LHA003JA key hole with described key 12HT and rotate, these 2 keys are caught simultaneously key D and are released; Described key D being inserted into 1LHA003JA circuit breaker cart key hole and rotates, 1LHA002JA is inserted into 1LHA003JA, after isolating switch inserts, key D is caught;
(13) after 1LHA isolating switch closes, the electrical connection of incoming line cabinet 9LHT and intermediate distribution system 1LHA has just been set up.
5. interlocking gear according to claim 4, it is characterised in that: described 1LGB normal power supply for station grounding switch key lock 6B is through the complicated switching device of 1LGB upstream, and when their circuit breaker cart is drawn out, key can be released; When a series of isolating switchs is drawn out of time, the key just having a series of correspondences is released; Time 1LHA circuit breaker cart is extracted out, 6B grounding switch key hole type lock is lived, and now grounding switch is in closing position.
6. interlocking gear according to the arbitrary item of claim 1-5, it is characterised in that: described air inlet valve and mouth air compressor starting valve are for controlling the startup of described diesel engine.
7. interlocking gear according to the arbitrary item of claim 1-5, it is characterised in that: described interlocking gear is used between switching cabinet and switching cabinet.
8. interlocking gear according to the arbitrary item of claim 1-5, it is characterised in that: described diesel generation system is the standby power supply of Nuclear power plants.
9. interlocking gear according to the arbitrary item of claim 1-5, it is characterised in that: described key is mechanical key.
10. interlocking gear according to the arbitrary item of claim 1-5, it is characterised in that: described exchange box has specific corresponding coding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019651.4A CN105649770B (en) | 2016-01-13 | 2016-01-13 | For diesel generating system and its interlock of backup power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610019651.4A CN105649770B (en) | 2016-01-13 | 2016-01-13 | For diesel generating system and its interlock of backup power source |
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| Publication Number | Publication Date |
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| CN105649770A true CN105649770A (en) | 2016-06-08 |
| CN105649770B CN105649770B (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610019651.4A Expired - Fee Related CN105649770B (en) | 2016-01-13 | 2016-01-13 | For diesel generating system and its interlock of backup power source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109061464A (en) * | 2018-05-08 | 2018-12-21 | 中广核研究院有限公司 | A kind of the test locked loop and method of nuclear power station diesel emergency generating set |
| CN110829482A (en) * | 2018-08-07 | 2020-02-21 | 阳光电源股份有限公司 | Integrated medium-voltage photovoltaic grid-connected system and interlocking control device thereof |
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| CN1046819A (en) * | 1989-04-24 | 1990-11-07 | 镇江市电工器材厂 | Program-controlled linked lock for handcart-type switch cabinet |
| KR19980037823U (en) * | 1996-12-18 | 1998-09-15 | 박병재 | 2-stage shelf door |
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| CN203248303U (en) * | 2013-03-19 | 2013-10-23 | 成都南玉电力设备有限公司 | Air starting system of diesel generator |
| CN104576120A (en) * | 2014-12-31 | 2015-04-29 | 上海凯研机械设备有限公司 | Mechanical key unlocking system |
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| CN1046819A (en) * | 1989-04-24 | 1990-11-07 | 镇江市电工器材厂 | Program-controlled linked lock for handcart-type switch cabinet |
| CN2057036U (en) * | 1989-07-14 | 1990-05-09 | 叶永康 | Key switch for preventing multiple power supplies from erroneous connection in parallel |
| KR19980037823U (en) * | 1996-12-18 | 1998-09-15 | 박병재 | 2-stage shelf door |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109061464A (en) * | 2018-05-08 | 2018-12-21 | 中广核研究院有限公司 | A kind of the test locked loop and method of nuclear power station diesel emergency generating set |
| CN110829482A (en) * | 2018-08-07 | 2020-02-21 | 阳光电源股份有限公司 | Integrated medium-voltage photovoltaic grid-connected system and interlocking control device thereof |
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|---|---|
| CN105649770B (en) | 2018-12-28 |
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