CN102183936A - Blackout start electric power system of autonomous critical heat-engine plant of paper mill and power supply method of system - Google Patents

Blackout start electric power system of autonomous critical heat-engine plant of paper mill and power supply method of system Download PDF

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CN102183936A
CN102183936A CN2011101137205A CN201110113720A CN102183936A CN 102183936 A CN102183936 A CN 102183936A CN 2011101137205 A CN2011101137205 A CN 2011101137205A CN 201110113720 A CN201110113720 A CN 201110113720A CN 102183936 A CN102183936 A CN 102183936A
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aforementioned
power
auxiliary load
transformer
steam turbine
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CN102183936B (en
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李群意
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GUANGDONG HONNY POWER TECHNOLOGY Co Ltd
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GUANGDONG HONNY POWER TECHNOLOGY Co Ltd
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Abstract

The invention discloses a blackout start electric power system of an autonomous critical heat-engine plant of a paper mill and a power supply method of the system. The blackout start electric power system comprises high-voltage diesel generator sets, a high-voltage grid-connected cabinet, a high-voltage output cabinet, a first transformer, a low-voltage power distribution system, a water supply system, an oil supply system and an illumination system, a turbine auxiliary load, a second transformer, house service equipment, an autonomous power generation bus, a primary transformer, a secondary transformer and a DCS (Distributed Control System) monitoring system; when the electricity is suddenly shut off, the DCS monitoring system can automatically issue a blackout start instruction and adjust the input number of the high-voltage diesel generator sets according to the load requirements so as to supply power to the illumination system, the water supply system and the oil supply system and further maintain the normal working environment of high-voltage diesel generator equipment; meanwhile, power is supplied for the turbine auxiliary load so as to start power generation of the turbine auxiliary load and ensure the normal power utilization of the house service equipment; in the whole process, the time spent by recovering the normal operation of electric power is extremely short and the impact current is small; meanwhile, the blackout start electric power system has the advantages of simple equipment and convenience for installation and is suitable for safety production self-help of the paper mill under a power failure condition.

Description

Slurry paper plant provides black electric system and the method for supplying power to thereof of starting of critical thermal power plant for oneself
Technical field
The present invention relates to the field of power technology, refer in particular to a kind of power recovery time short, utility appliance is simple, slurry paper plant full-automatic monitoring provides black electric system and the method for supplying power to thereof of starting of critical thermal power plant for oneself.
Background technology
When slurry paper plant has a power failure suddenly or other unpredictable factor is when causing the station service fault, may cause the equipment full cut-off in the slurry paper plant, whole using electricity system is in " deceives " state entirely, need realize the recovery of whole using electricity system this moment, and this rejuvenation just makes slurry paper plant provide the black startup of critical thermal power plant for oneself.
And in the prior art, it is longer that slurry paper plant provides the black start-up course of critical thermal power plant for oneself, for example, after the power failure, full factory and office are under " complete black " state, the related work personnel supply with full plant electricity consumption by starting the generating set provided for oneself in the factory (as diesel-driven generator etc.) generating, this start-up course usually is manually-operated, its power recovery time is longer, the equipment long period that causes starching paper plant is in dead status, has influenced production, also may cause confusion because of long power down mode causes starching in the paper plant, like this, having brought for slurry paper plant seriously influences.
By this, be badly in need of technical scheme that research makes new advances to solve above-mentioned deficiency.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose provides a kind of slurry paper plant and provides black electric system and the method for supplying power to thereof of starting of critical thermal power plant for oneself, and its power recovery time is short, utility appliance is simple, dash current is little and realized full-automatic monitoring.
For achieving the above object, the present invention adopts following technical scheme:
A kind of slurry paper plant provides that critical thermal power plant is black to start electric system for oneself, include high-pressure diesel generating set, steam turbine auxiliary load, second transformer, house-service equipment, provide generating bus, one-level transformer, secondary transformer and DCS supervisory system for oneself, wherein, this high-pressure diesel generating set includes high-pressure diesel genset, high pressure be incorporated into the power networks cabinet, high pressure output counter, first transformer, low-voltage distribution system, water system, oil supply system and illuminator;
This high-pressure diesel genset quantity is more than one, and the be incorporated into the power networks quantity of cabinet of aforementioned high pressure is identical with the high-pressure diesel genset, each high-pressure diesel genset is connected in the aforementioned high pressure cabinet that is incorporated into the power networks, each high pressure cabinet that is incorporated into the power networks together is connected in aforementioned high pressure output counter, this high pressure output counter is provided with two output terminals at least, i.e. first output terminal and second output terminal, its first output terminal is transported to low-voltage distribution system through first transformer with electric power, again electric power is supplied with aforementioned water system, oil supply system and illuminator are to keep the normal operation circumstances of aforementioned high-pressure diesel generating set; And, second output terminal of this high pressure output counter is connected in aforementioned steam turbine auxiliary load, carry out power generation operation to start this steam turbine auxiliary load, the output terminal of this steam turbine auxiliary load is connected in the aforementioned generating bus of providing for oneself, this electric power of providing transmission in the generating bus for oneself is after the secondary step-down of aforementioned one-level transformer and secondary transformer, and its electric power is supplied with aforementioned house-service equipment again after the transformation of aforementioned second transformer;
And, this DCS supervisory system be connected to aforementioned high-pressure diesel genset, high pressure be incorporated into the power networks cabinet, high pressure output counter, low-voltage distribution system, water system, oil supply system, illuminator, steam turbine auxiliary load, provide generating bus and house-service equipment for oneself, and the time control its working condition.
As a kind of preferred version, the quantity of described high-pressure diesel genset is 16, and correspondingly, the be incorporated into the power networks quantity of cabinet of aforementioned high pressure also is 16.
As a kind of preferred version, the output voltage of described high pressure output counter is 6.3KV, aforementioned steam turbine auxiliary load output voltage is that 110KV is to the aforementioned generating bus of providing for oneself, after the step-down of aforementioned one-level transformer, its voltage is reduced to 35KV by 110KV, after the step-down of aforementioned secondary transformer, its voltage is reduced to 6.3KV by 35KV.
A kind of paper plant of starching provides the black method of supplying power to that starts electric system of critical thermal power plant for oneself, when slurry paper plant has a power failure, the DCS supervisory system is in time assigned black startup command, automatically adjust the firing platform number of high-pressure diesel genset according to loading demand, these many high-pressure diesel genset generate electricity by way of merging two or more grid systems after the output of high pressure output counter, its first output terminal is transported to low-voltage distribution system through first transformer with electric power, again electric power is supplied with aforementioned water system, oil supply system and illuminator, to keep the normal operation circumstances of aforementioned high-pressure diesel generating set; And, the second output terminal output power of this high pressure output counter is to the steam turbine auxiliary load, carry out power generation operation to start this steam turbine auxiliary load, this its output voltage of steam turbine auxiliary load generating back is to the aforementioned generating bus of providing for oneself, this electric power of providing transmission in the generating bus for oneself is after the step-down of aforementioned one-level transformer and secondary transformer, its a part of electric power is supplied with aforementioned house-service equipment after the transformation of aforementioned second transformer, its another part electric power is directly supplied with the steam turbine auxiliary load to keep its work electricity consumption;
And, function that aforementioned steam turbine auxiliary load possesses and outer net, high-pressure diesel genset are incorporated into the power networks synchronously, wherein, the high-pressure diesel genset is selected simultaneously and the steam turbine auxiliary load is incorporated into the power networks, and perhaps withdraws from the high-pressure diesel genset according to loading demand; The steam turbine auxiliary load then is incorporated into the power networks synchronously with outer net after outer net is normal, perhaps withdraws from the steam turbine auxiliary load, makes this black startup electric system be in stand-by state.
After the present invention adopted technique scheme, its beneficial effect was:
One, by aforementioned each functional module setting with cooperate, when slurry paper plant has a power failure suddenly, the DCS supervisory system can be assigned black startup command automatically, and adjust the input platform number of high-pressure diesel genset automatically according to loading demand, on the one hand, give in the high-pressure diesel generating set as illuminator, water system and oil supply system etc. to keep the normal operation circumstances of high-pressure diesel generating set with power supply; On the other hand, power supply carries out power generation operation to start it for the steam turbine auxiliary load, and this steam turbine auxiliary load generating is used for house-service equipment, recovers normal electricity consumption to guarantee house-service equipment; Because all functions module is by the monitoring automatically in time of DCS supervisory system in this electric system, and a plurality of high-pressure diesel genset of aforementioned high-voltage power equipment system's employing generate electricity by way of merging two or more grid systems, the time compole of the normal operation of its power recovery is short, dash current is little, simultaneously, the equipment that is applied in this whole electric system is simple, be convenient to install, be very suitable for starching the safety in production of paper plant when being ready for use on the dead electricity situation and save oneself.
Two, aforementioned steam turbine auxiliary load possesses and outer net, the high-pressure diesel genset function that is incorporated into the power networks synchronously, wherein, the high-pressure diesel genset can be selected simultaneously and the steam turbine auxiliary load is incorporated into the power networks, and also can withdraw from the high-pressure diesel genset automatically or manually according to loading demand; And can realize being incorporated into the power networks synchronously with outer net when the normal back of outer net steam turbine auxiliary load, also can be automatically or manually withdraw from the steam turbine auxiliary load, make this black startup electric system be in stand-by state.
For more clearly setting forth architectural feature of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the theory diagram of preferred embodiment of the present invention.
The accompanying drawing identifier declaration:
10, high-pressure diesel generating set
11, high-pressure diesel genset 12, the high pressure cabinet that is incorporated into the power networks
13, high pressure output counter 14, first transformer
15, low-voltage distribution system 16, water system
17, oil supply system 18, illuminator
20, steam turbine auxiliary load 30, second transformer
40, house-service equipment 50, provide the generating bus for oneself
61, one-level transformer 62, secondary transformer
70, DCS supervisory system.
Embodiment
See also shown in Figure 1, the concrete structure that it has demonstrated the present invention's preferred embodiment includes high-pressure diesel generating set 10, steam turbine auxiliary load 20, second transformer 30, house-service equipment 40, provides generating bus 50, one-level transformer 61, secondary transformer 62 and DCS supervisory system 70 for oneself; Wherein, this high-pressure diesel generating set 10 includes high-pressure diesel genset 11, high pressure be incorporated into the power networks cabinet 12, high pressure output counter 13, first transformer 14, low-voltage distribution system 15, water system 16, oil supply system 17 and illuminator 18.
These high-pressure diesel genset 11 quantity are more than one, and the be incorporated into the power networks quantity of cabinet 12 of aforementioned high pressure is identical with high-pressure diesel genset 11, each high-pressure diesel genset 11 is connected in an aforementioned high pressure and is incorporated into the power networks cabinet 12(in this embodiment, the quantity of this high-pressure diesel genset 11 is 16, correspondingly, the be incorporated into the power networks quantity of cabinet 12 of aforementioned high pressure also is 16), each high pressure cabinet 12 that is incorporated into the power networks together is connected in aforementioned high pressure output counter 13, this high pressure output counter 13 is provided with two output terminals at least, i.e. first output terminal and second output terminal, its first output terminal is transported to low-voltage distribution system 15 through first transformer 14 with electric power, again electric power is supplied with aforementioned water system 16, oil supply system 17 and illuminator 18 are to keep the normal operation circumstances of aforementioned high-pressure diesel generating set 10; And, second output terminal of this high pressure output counter 13 is connected in aforementioned steam turbine auxiliary load 20, carry out power generation operation to start this steam turbine auxiliary load 20, the output terminal of this steam turbine auxiliary load 20 is connected in the aforementioned generating bus 50 of providing for oneself, this electric power of providing transmission in the generating bus 50 for oneself is after the secondary step-down of aforementioned one-level transformer 61 and secondary transformer 62, and its electric power is supplied with aforementioned house-service equipment 40 again after the transformation of aforementioned second transformer 30;
And, this DCS supervisory system 70 be connected to aforementioned high-pressure diesel genset 11, high pressure be incorporated into the power networks cabinet 12, high pressure output counter 13, low-voltage distribution system 15, water system 16, oil supply system 17, illuminator 18, steam turbine auxiliary load 20, provide generating bus 50 and house-service equipment 40 for oneself, and the time control its working condition.
Above-mentioned slurry paper plant provides the black mode of operation that starts electric system of critical thermal power plant for oneself:
When slurry paper plant has a power failure, DCS supervisory system 70 is in time assigned black startup command, automatically adjust the firing platform number of high-pressure diesel genset 11 according to loading demand, these many high-pressure diesel genset 11 generate electricity by way of merging two or more grid systems after 13 outputs of high pressure output counter, its output voltage is 6.3KV, its first output terminal is transported to low-voltage distribution system 15 through first transformer 14 with electric power, again electric power is supplied with aforementioned water system 16, oil supply system 17 and illuminator 18, to keep the normal operation circumstances of aforementioned high-pressure diesel generating set 10; And, the second output terminal output power of this high pressure output counter 13 is to steam turbine auxiliary load 20, carry out power generation operation to start this steam turbine auxiliary load 20, this steam turbine auxiliary load 20 generating back its output voltage 110KV are to the aforementioned generating bus 50 of providing for oneself, this electric power of providing transmission in the generating bus 50 for oneself is depressurized to 35KV through aforementioned one-level transformer 61, again through the 6.3KV that is depressurized to of secondary transformer 62, its a part of electric power is supplied with aforementioned house-service equipment 40 after the transformation of aforementioned second transformer 30, its another part electric power is directly supplied with steam turbine auxiliary load 20 to keep its work electricity consumption.In this whole process, it is the static state power supply of being incorporated into the power networks, and has realized the zero current impact.
And, function that aforementioned steam turbine auxiliary load 20 possesses and outer net, high-pressure diesel genset 11 are incorporated into the power networks synchronously, wherein, high-pressure diesel genset 11 can be selected simultaneously and steam turbine auxiliary load 20 is incorporated into the power networks, and also can withdraw from high-pressure diesel genset 11 automatically or manually according to loading demand; And can realize being incorporated into the power networks synchronously with outer net when the normal back of outer net steam turbine auxiliary load 20, also can be automatically or manually withdraw from steam turbine auxiliary load 20, make this black startup electric system be in stand-by state.
Design focal point of the present invention is, main system by aforementioned each functional module setting with cooperate, when slurry paper plant has a power failure suddenly, the DCS supervisory system can be assigned black startup command automatically, and adjust the input platform number of high-pressure diesel genset automatically according to loading demand, on the one hand, give in the high-pressure diesel generating set as illuminator, water system and oil supply system etc. to keep the normal operation circumstances of high-pressure diesel generating set with power supply; On the other hand, power supply carries out power generation operation to start it for the steam turbine auxiliary load, and this steam turbine auxiliary load generating is used for house-service equipment, recovers normal electricity consumption to guarantee house-service equipment; Because all functions module is by the monitoring automatically in time of DCS supervisory system in this electric system, and a plurality of high-pressure diesel genset of aforementioned high-voltage power equipment system's employing generate electricity by way of merging two or more grid systems, the time compole of the normal operation of its power recovery is short, dash current is little, simultaneously, the equipment that is applied in this whole electric system is simple, be convenient to install, be very suitable for starching the safety in production of paper plant when being ready for use on the dead electricity situation and save oneself;
Next is, function that aforementioned steam turbine auxiliary load possesses and outer net, high-pressure diesel genset are incorporated into the power networks synchronously, wherein, the high-pressure diesel genset can be selected simultaneously and the steam turbine auxiliary load is incorporated into the power networks, and also can withdraw from the high-pressure diesel genset automatically or manually according to loading demand; And can realize being incorporated into the power networks synchronously with outer net when the normal back of outer net steam turbine auxiliary load, also can be automatically or manually withdraw from the steam turbine auxiliary load, make this black startup electric system be in stand-by state.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment did.

Claims (4)

1. a slurry paper plant provides the black startup electric system of critical thermal power plant for oneself, it is characterized in that: include high-pressure diesel generating set, steam turbine auxiliary load, second transformer, house-service equipment, provide generating bus, one-level transformer, secondary transformer and DCS supervisory system for oneself, wherein, this high-pressure diesel generating set includes high-pressure diesel genset, high pressure be incorporated into the power networks cabinet, high pressure output counter, first transformer, low-voltage distribution system, water system, oil supply system and illuminator;
This high-pressure diesel genset quantity is more than one, and the be incorporated into the power networks quantity of cabinet of aforementioned high pressure is identical with the high-pressure diesel genset, each high-pressure diesel genset is connected in the aforementioned high pressure cabinet that is incorporated into the power networks, each high pressure cabinet that is incorporated into the power networks together is connected in aforementioned high pressure output counter, this high pressure output counter is provided with two output terminals at least, i.e. first output terminal and second output terminal, its first output terminal is transported to low-voltage distribution system through first transformer with electric power, again electric power is supplied with aforementioned water system, oil supply system and illuminator are to keep the normal operation circumstances of aforementioned high-pressure diesel generating set; And, second output terminal of this high pressure output counter is connected in aforementioned steam turbine auxiliary load, carry out power generation operation to start this steam turbine auxiliary load, the output terminal of this steam turbine auxiliary load is connected in the aforementioned generating bus of providing for oneself, this electric power of providing transmission in the generating bus for oneself is after the secondary step-down of aforementioned one-level transformer and secondary transformer, and its electric power is supplied with aforementioned house-service equipment again after the transformation of aforementioned second transformer;
And, this DCS supervisory system be connected to aforementioned high-pressure diesel genset, high pressure be incorporated into the power networks cabinet, high pressure output counter, low-voltage distribution system, water system, oil supply system, illuminator, steam turbine auxiliary load, provide generating bus and house-service equipment for oneself, and the time control its working condition.
2. slurry according to claim 1 paper plant provides that critical thermal power plant is black to start electric system for oneself, and it is characterized in that: the quantity of described high-pressure diesel genset is 16, and correspondingly, the be incorporated into the power networks quantity of cabinet of aforementioned high pressure also is 16.
3. slurry according to claim 1 paper plant provides that critical thermal power plant is black to start electric system for oneself, it is characterized in that: the output voltage of described high pressure output counter is 6.3KV, aforementioned steam turbine auxiliary load output voltage is that 110KV is to the aforementioned generating bus of providing for oneself, after the step-down of aforementioned one-level transformer, its voltage is reduced to 35KV by 110KV, after the step-down of aforementioned secondary transformer, its voltage is reduced to 6.3KV by 35KV.
4. starch the method for supplying power to that paper plant provides the black startup electric system of critical thermal power plant for oneself for one kind, it is characterized in that: when slurry paper plant has a power failure, the DCS supervisory system is in time assigned black startup command, automatically adjust the firing platform number of high-pressure diesel genset according to loading demand, these many high-pressure diesel genset generate electricity by way of merging two or more grid systems after the output of high pressure output counter, its first output terminal is transported to low-voltage distribution system through first transformer with electric power, again electric power is supplied with aforementioned water system, oil supply system and illuminator, to keep the normal operation circumstances of aforementioned high-pressure diesel generating set; And, the second output terminal output power of this high pressure output counter is to the steam turbine auxiliary load, carry out power generation operation to start this steam turbine auxiliary load, this its output voltage of steam turbine auxiliary load generating back is to the aforementioned generating bus of providing for oneself, this electric power of providing transmission in the generating bus for oneself is after the step-down of aforementioned one-level transformer and secondary transformer, its a part of electric power is supplied with aforementioned house-service equipment after the transformation of aforementioned second transformer, its another part electric power is directly supplied with the steam turbine auxiliary load to keep its work electricity consumption;
And, function that aforementioned steam turbine auxiliary load possesses and outer net, high-pressure diesel genset are incorporated into the power networks synchronously, wherein, the high-pressure diesel genset is selected simultaneously and the steam turbine auxiliary load is incorporated into the power networks, and perhaps withdraws from the high-pressure diesel genset according to loading demand; The steam turbine auxiliary load then is incorporated into the power networks synchronously with outer net after outer net is normal, perhaps withdraws from the steam turbine auxiliary load, makes this black startup electric system be in stand-by state.
CN 201110113720 2011-05-04 2011-05-04 Blackout start electric power system of autonomous critical heat-engine plant of paper mill and power supply method of system Expired - Fee Related CN102183936B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393669A (en) * 2014-11-28 2015-03-04 中国北车集团大连机车车辆有限公司 Power supply circuit for auxiliary systems of multiple diesel generator units

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080157538A1 (en) * 2006-12-09 2008-07-03 Eric Anthony Lewis Methods of synchronizing a plurality of generators
CN101436788A (en) * 2008-12-17 2009-05-20 江西柘林水电开发有限责任公司 Black startup method for non standby station service supply hydroelectric station hydro-turbo generator set
EP2209200A2 (en) * 2008-12-22 2010-07-21 General Electric Company Electrical System And Control Method
CN202049382U (en) * 2011-05-04 2011-11-23 广东康菱动力科技有限公司 Electric power system for pulp mill owned critical power plant black-start

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080157538A1 (en) * 2006-12-09 2008-07-03 Eric Anthony Lewis Methods of synchronizing a plurality of generators
CN101436788A (en) * 2008-12-17 2009-05-20 江西柘林水电开发有限责任公司 Black startup method for non standby station service supply hydroelectric station hydro-turbo generator set
EP2209200A2 (en) * 2008-12-22 2010-07-21 General Electric Company Electrical System And Control Method
CN202049382U (en) * 2011-05-04 2011-11-23 广东康菱动力科技有限公司 Electric power system for pulp mill owned critical power plant black-start

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393669A (en) * 2014-11-28 2015-03-04 中国北车集团大连机车车辆有限公司 Power supply circuit for auxiliary systems of multiple diesel generator units

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