CN206799152U - A kind of fuel oil supply control system of nuclear power station redundancy diesel generating set - Google Patents
A kind of fuel oil supply control system of nuclear power station redundancy diesel generating set Download PDFInfo
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- CN206799152U CN206799152U CN201720397893.7U CN201720397893U CN206799152U CN 206799152 U CN206799152 U CN 206799152U CN 201720397893 U CN201720397893 U CN 201720397893U CN 206799152 U CN206799152 U CN 206799152U
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- auxiliary reclay
- fuel oil
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Abstract
The utility model discloses a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set, including the first controller corresponding with main diesel generating set, second controller corresponding with redundancy diesel generating set, one oil tank, first auxiliary reclay K1, second auxiliary reclay K2, 3rd auxiliary reclay K3, and the first fuel oil analog sensor in the oil tank, second fuel oil analog sensor, to control the low burn fluid bit switch of the second auxiliary reclay K2 and for controlling the high fuel liquid level of the 3rd auxiliary reclay K3 to switch；The connection corresponding with two analog quantitys detection pin of first controller of the both ends of the first fuel oil analog sensor, the connection corresponding with two analog quantitys detection pin of the second controller of the both ends of the second fuel oil analog sensor.
Description
Technical field
It the utility model is related to a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set of nuclear power field.
Background technology
With the peak period of Chinese Nuclear Power construction, the million kilowatt nuclear power unit of input increasingly come it is more, in order to protect
Hinder nuclear power generating sets safe operation, redundancy diesel generating set be nuclear power station meet an urgent need operating mode when indispensable important leverage
One of facility.The fuel oil supply control system of diesel generating set is the source of supply of diesel generating set, for ensureing nuclear power station
Safe and reliable, stable and economical operation has the function that very important.The fuel oil make-up system of existing redundancy diesel generating set
The mode being usually taken is：Active and standby fuel reservoir, be set respectively in the room of an one standby diesel generating set of master auxiliary day
With fuel tank, so not only cost is high, and active and standby fuel reservoir can take corresponding land area, and can be to running and safeguarding band
Much to bother；The information point of controller monitoring fuel states is especially more, and many inconvenience are brought to monitoring, once liquid-level switch or
When remote liquid level sensor breaks down, it is also very troublesome that its personnel investigates fuel oil supply control system.
Utility model content
The purpose of this utility model is for overcome the deficiencies in the prior art, there is provided a kind of nuclear power station redundancy diesel-driven generator
The fuel oil supply control system of group, it can carry out fuel oil supply to two diesel generating sets simultaneously only with an oil tank
Control, therefore not only cost is cheap, and the emergent fuel feeding to the diesel generating set in nuclear power station has been ensured, make in nuclear power station
Diesel generating set emergency service, energy-conserving and environment-protective.
Realizing a kind of technical scheme of above-mentioned purpose is：A kind of fuel oil supply control of nuclear power station redundancy diesel generating set
System, including the first controller corresponding with main diesel generating set, second controller corresponding with redundancy diesel generating set,
One oil tank, the first fuel oil analog sensor and the second fuel oil analog sensor in the oil tank, among first
Relay K1, the second auxiliary reclay K2 and the 3rd auxiliary reclay K3；It is and described to control in the oil tank
Second auxiliary reclay K2 low burn fluid bit switch and in the oil tank controlling the 3rd auxiliary reclay
K3 high fuel liquid level switch；
The both ends of the first fuel oil analog sensor and two analog quantitys detection pin pair of first controller
It should connect, the both ends of the second fuel oil analog sensor are corresponding with two analog quantitys detection pin of the second controller
Connection；
The both ends of the normally opened node of the second auxiliary reclay K2 correspondingly connect the first switch of first controller
The power cathode of amount detection pin and first controller, the both ends of the normally opened node of the second auxiliary reclay K2 are also right
The second switch amount detection pin of the second controller and the power cathode of the second controller should be connected；
The both ends of the normally opened node of the 3rd auxiliary reclay K3 correspondingly connect the 3rd switch of first controller
The power cathode of amount detection pin and first controller, the both ends of the normally opened node of the 3rd auxiliary reclay K3 are also right
The 4th switching value pin of the second controller and the power cathode of the second controller should be connected；
The normally opened node of the first auxiliary reclay K1 connects the positive source and power supply of first controller simultaneously
Negative pole, the normally closed node of the first auxiliary reclay K1 connects the positive source of the second controller simultaneously and power supply is born
Pole；It is also series connection between the normally opened node and normally closed node of the first auxiliary reclay K1；First auxiliary reclay
The both ends of K1 coil correspondingly connect the positive source and power cathode of first controller.
Further, one end of the low burn fluid bit switch connects institute by the coil of the second auxiliary reclay K2
State the series connection point between the first auxiliary reclay K1 normal opened contact and normally closed node, first described in other end short circuit among after
Series connection point between electrical equipment K1 normal opened contact and normally closed node；
In the coil connection described first that one end of the high fuel liquid level switch passes through the 3rd auxiliary reclay K3
Between relay K1 normal opened contact and normally closed node between series connection point, the first auxiliary reclay K1 described in other end short circuit
Series connection point between normal opened contact and normally closed node.
Further, first controller and the second controller are PLC.
Employ a kind of technology of the fuel oil supply control system of nuclear power station redundancy diesel generating set of the present utility model
Scheme, including the first controller corresponding with main diesel generating set, second controller corresponding with redundancy diesel generating set,
One oil tank, the first fuel oil analog sensor and the second fuel oil analog sensor in the oil tank, among first
Relay K1, the second auxiliary reclay K2 and the 3rd auxiliary reclay K3；It is and described to control in the oil tank
Second auxiliary reclay K2 low burn fluid bit switch and in the oil tank controlling the 3rd auxiliary reclay
K3 high fuel liquid level switch；The both ends of the first fuel oil analog sensor and two analog quantitys of first controller
The corresponding connection of pin is detected, the both ends of the second fuel oil analog sensor are examined with two analog quantitys of the second controller
Survey the corresponding connection of pin；The both ends of the normally opened node of the second auxiliary reclay K2 correspondingly connect the of first controller
The power cathode of one switching value pin and first controller, the two of the normally opened node of the second auxiliary reclay K2
The second switch amount detection pin of the also corresponding connection second controller in end and the power cathode of the second controller；It is described
The both ends of 3rd auxiliary reclay K3 normally opened node correspondingly connect first controller the 3rd switching value pin and
The power cathode of first controller, the also corresponding connection in the both ends of the normally opened node of the 3rd auxiliary reclay K3 described the
4th switching value pin of two controllers and the power cathode of the second controller；The first auxiliary reclay K1's
Normally opened node connects the positive source and power cathode of first controller simultaneously, and the first auxiliary reclay K1's is normally closed
Node connects the positive source and power cathode of the second controller simultaneously；The normally opened node of the first auxiliary reclay K1
It is also series connection between normally closed node；The both ends of the coil of the first auxiliary reclay K1 correspondingly connect first control
The positive source and power cathode of device.It has the technical effect that：Can be simultaneously to two diesel generating sets only with an oil tank
The control of fuel oil supply is carried out, therefore not only cost is cheap, and ensured to the emergent of the diesel generating set in nuclear power station
Fuel feeding, make the diesel generating set emergency service in nuclear power station, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is that a kind of fuel oil of nuclear power station redundancy diesel generating set of the present utility model feeds control system.
Embodiment
Referring to Fig. 1, inventor of the present utility model is in order to preferably managing the technical solution of the utility model
Solution, is described in detail below by specifically embodiment, and with reference to accompanying drawing：
A kind of referring to Fig. 1, fuel oil supply control system bag of nuclear power station redundancy diesel generating set of the present utility model
Include oil tank 6, the first controller 1, second controller 10, the first fuel oil analog sensor 5, the second fuel oil analog sensor 9,
Low burn fluid bit switch 7, high fuel liquid level switch the 8, first auxiliary reclay K1, among the second auxiliary reclay K2 and the 3rd after
Electrical equipment K3.
First fuel oil analog sensor 5, the second fuel oil analog sensor 9, low burn fluid bit switch 7, high fuel oil liquid
Bit switch 8 is respectively positioned in oil tank 6.
First controller 1 is provided with the first analog quantity detection pin and the 3rd analog quantity detection pin, the inspection of first switch amount
Survey pin and the 3rd switching value pin, positive source and power cathode.
Second controller 10 is provided with the second analog quantity detection pin and the 4th analog quantity detection pin, the inspection of second switch amount
Survey pin and the 4th switching value pin, positive source and power cathode.
The both ends of first fuel oil analog sensor 5 connect respectively the first controller 1 the first analog quantity detection pin and
3rd analog quantity detects pin.The both ends of second fuel oil analog sensor 9 connect the second simulation of second controller 10 respectively
Amount detection pin and the 4th analog quantity detection pin.
The first switch amount detection pin of first controller 1 connects first by the second auxiliary reclay K2 normally opened node
The power cathode of controller 1, the normally opened section that the 3rd switching value pin of the first controller 1 passes through the 3rd auxiliary reclay K3
The power cathode of point the first controller 1 of connection.
The second switch amount detection pin of second controller 10 passes through the second auxiliary reclay K2 normally opened node connection the
The power cathode of two controllers 10, the switching value pin of second controller 10 the 4th pass through the normally opened of the 3rd auxiliary reclay K3
Node connects the power cathode of second controller 10.
First auxiliary reclay K1 normally opened node connects the positive source and the first controller 1 of the first controller 1 simultaneously
Power cathode.First auxiliary reclay K1 normally closed node connects positive source and the second control of second controller 10 simultaneously
The power cathode of device 10.It is also series connection between first auxiliary reclay K1 normally opened node and normally closed node.First control simultaneously
Connected between the power cathode of the positive source of device 1 processed and the first controller 1 by the first auxiliary reclay K1 coil.
One end of low burn fluid bit switch 7 connects the first auxiliary reclay K1's by the second auxiliary reclay K2 coil
Series connection point between normally opened node and normally closed node, the first auxiliary reclay of other end short circuit K1 normally opened node and normally closed section
Series connection point between point.
One end of high fuel liquid level switch 8 connects the first auxiliary reclay K1's by the 3rd auxiliary reclay K3 coil
Series connection point between normally opened node and normally closed node, the first auxiliary reclay of other end short circuit K1 normally opened node and normally closed section
Series connection point between point.
Oil tank 6 can ensure that diesel generating set can be in rated power in the case of without frequently extra supplement fuel oil
Lower long-time is continuously run, and the purpose so done can greatly reduce cost, with this come shorten fuel oil supply and diesel-driven generator
The distance between group.
In the case where nuclear power station loses all power, diesel generating set, which normally starts, passes through power distribution cabinet to the water pressure test
Pump is powered, and when main diesel generating set starts, the first controller 1, which is started working, to be monitored, and the first auxiliary reclay K1 obtains electric adhesive,
The fuel oil supply of diesel generating set is by main diesel-electric set electric supply, when high fuel liquid level switch 8 or low burn fluid bit switch 7
When any one letter closes closure, the 3rd auxiliary reclay K3 or low burn fluid bit switch 7 of the high control of fuel liquid level switch 8 are controlled
The second auxiliary reclay K2 can send alarm signal simultaneously to the first controller 1 and second controller 10, the first controller 1 is controlled
The main diesel generating set of system can judge output signal.When main diesel generating set can not start, second controller
10 control redundancy diesel generating sets will obtain enabling signal, the first auxiliary reclay K1 dead electricity break contacts, now diesel oil
The fuel oil of generating set is fed by redundancy diesel-electric set electric supply.The first fuel oil analog sensor 5 and second in oil tank 6
The corresponding oil condition that oil storage tank 6 is transmitted to the first controller 1 and second controller 10 of fuel oil analog sensor 6, accomplishes reality
When monitor fuel oil supply state.Pass through a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set of the present utility model
System, fuel oil supply can use redundancy diesel-electric set electric supply, and two diesel generating sets are entered simultaneously only with an oil tank 6
Row fuel oil is fed, and therefore, the fuel oil supply control system cost of nuclear power station redundancy diesel generating set is not only cheap, and ensures
To the emergent fuel feeding of diesel generating set in nuclear power station, energy-conserving and environment-protective are realized.
In a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set of the present utility model, the first controller
1 and second controller 10 may be selected PLC.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to illustrate that this practicality is new
Type, and be not used as to restriction of the present utility model, as long as in spirit of the present utility model, to described above
Change, the modification of embodiment will all fall in Claims scope of the present utility model.
Claims (3)
1. a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set, including it is corresponding with main diesel generating set
First controller and second controller corresponding with redundancy diesel generating set；It is characterized in that：
It also includes an oil tank, the first fuel oil analog sensor and the second fuel oil analog quantity sensing in the oil tank
Device, pin is corresponding connects for two analog quantitys detection of the both ends of the first fuel oil analog sensor and first controller
Connect, pin is corresponding connects for two analog quantitys detection of the both ends of the second fuel oil analog sensor and the second controller
Connect；
The fuel oil supply control system of the nuclear power station redundancy diesel generating set also includes：First auxiliary reclay K1, second
Auxiliary reclay K2 and the 3rd auxiliary reclay K3；And in the oil tank controlling second auxiliary reclay
K2 low burn fluid bit switch and in the oil tank controlling the high fuel liquid level of the 3rd auxiliary reclay K3
Switch；
The both ends of the normally opened node of the second auxiliary reclay K2 correspondingly connect the first switch amount inspection of first controller
The power cathode of pin and first controller is surveyed, the both ends of the normally opened node of the second auxiliary reclay K2 are also corresponding to be connected
Connect the second switch amount detection pin of the second controller and the power cathode of the second controller；
The both ends of the normally opened node of the 3rd auxiliary reclay K3 correspondingly connect the 3rd switching value inspection of first controller
The power cathode of pin and first controller is surveyed, the both ends of the normally opened node of the 3rd auxiliary reclay K3 are also corresponding to be connected
Connect the 4th switching value pin of the second controller and the power cathode of the second controller；
The normally opened node of the first auxiliary reclay K1 connects the positive source and power cathode of first controller simultaneously,
The normally closed node of the first auxiliary reclay K1 connects the positive source and power cathode of the second controller simultaneously；It is described
It is also series connection between first auxiliary reclay K1 normally opened node and normally closed node；The coil of the first auxiliary reclay K1
Both ends correspondingly connect the positive source and power cathode of first controller.
2. a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set according to claim 1, its feature
It is：One end of the low burn fluid bit switch by among the coil of the second auxiliary reclay K2 connection described first after
Series connection point between electrical equipment K1 normal opened contact and normally closed node, the first auxiliary reclay K1's is normally opened described in other end short circuit
Series connection point between contact and normally closed node；
One end of the high fuel liquid level switch pass through among the coil connection described first of the 3rd auxiliary reclay K3 after
Series connection point between electrical equipment K1 normal opened contact and normally closed node, the first auxiliary reclay K1's is normally opened described in other end short circuit
Series connection point between contact and normally closed node.
3. a kind of fuel oil supply control system of nuclear power station redundancy diesel generating set according to claim 1, its feature
It is：First controller and the second controller are PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397893.7U CN206799152U (en) | 2017-04-17 | 2017-04-17 | A kind of fuel oil supply control system of nuclear power station redundancy diesel generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397893.7U CN206799152U (en) | 2017-04-17 | 2017-04-17 | A kind of fuel oil supply control system of nuclear power station redundancy diesel generating set |
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| CN206799152U true CN206799152U (en) | 2017-12-26 |
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| CN201720397893.7U Active CN206799152U (en) | 2017-04-17 | 2017-04-17 | A kind of fuel oil supply control system of nuclear power station redundancy diesel generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487703A (en) * | 2018-02-06 | 2018-09-04 | 中国核电工程有限公司 | A kind of nuclear power station SBO power supplys diesel-driven generator Power house layout design method |
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2017
- 2017-04-17 CN CN201720397893.7U patent/CN206799152U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487703A (en) * | 2018-02-06 | 2018-09-04 | 中国核电工程有限公司 | A kind of nuclear power station SBO power supplys diesel-driven generator Power house layout design method |
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