CN206054009U - A kind of cogeneration units depth peak regulation system - Google Patents
A kind of cogeneration units depth peak regulation system Download PDFInfo
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- CN206054009U CN206054009U CN201620958080.6U CN201620958080U CN206054009U CN 206054009 U CN206054009 U CN 206054009U CN 201620958080 U CN201620958080 U CN 201620958080U CN 206054009 U CN206054009 U CN 206054009U
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Abstract
This utility model is related to a kind of cogeneration units depth peak regulation system.At present also without the technology for effectively carrying out fired power generating unit power peak regulation.This utility model includes boiler, steam turbine, electromotor, heat exchange station, heat user, heat supply extraction steam pipe and heat supply pipeline, steam turbine and electromotor connection, and heat exchange station passes through heat supply pipeline and heat user connects, and is characterized in：Also include heat transmission equipment, regenerative apparatus, main steam pipe, reheated steam pipe and reducing-and-cooling plant, boiler and main steam pipe connection, main steam pipe is divided into two branch roads and is connected with steam turbine and reducing-and-cooling plant respectively, steam turbine and the connection of reheated steam pipe, reheated steam pipe is divided into two branch roads and is connected with boiler and reducing-and-cooling plant respectively, reducing-and-cooling plant, heat transmission equipment and regenerative apparatus are sequentially connected by pipeline, and regenerative apparatus passes through pipeline and heat supply pipeline connects.Of the present utility model reasonable in design, dependable performance is advantageously implemented unit power peak regulation and thermic load peak load shifting.
Description
Technical field
This utility model belongs to heat supply thermal power plant accumulation of heat peak regulation technique field, and in particular to a kind of cogeneration units depth
Peak regulation system, is particularly suited for carrying out the thermal power plant of heat supply and peak load regulation network.
Background technology
At present, China's policy gradually payes attention to the popularization of new forms of energy, reduces the ratio of fired power generating unit.Ended for the end of the year 2012, I
The installed capacity of wind-driven power of the existing 44.8GW of state.But wind-powered electricity generation has very strong randomness, intermittence, uncontrollability and anti-peak regulation special
Property, this carries out the difficulty of peak load regulation network with regard to gradually increasing fired power generating unit.In order to be able to new forms of energy resource of effectively dissolving, country by
The policy for gradually increasing fired power generating unit peak regulation requires that such as National Energy Board northeast Supervision Bureau is with regard to printing and distributing《Tohoku Electric Power peak regulation
Assisted hatching supervisory method（It is tentative）》And its supplementary provisions requirement should lift clean energy resource and dissolve space, ensure again
Resident's heating quality.Define " staged " compensation mechanism simultaneously, according to peak regulation rate point third gear making up price, i.e., first grade：48%
<Thermal power plant's peak regulation rate≤55%, compensation valency are 0.4 yuan/kWh；Second gear：55%<Thermal power plant's peak regulation rate≤60%, compensation valency are 0.4
～0.6 yuan/kWh；Third gear：Thermal power plant's peak regulation rate>60%, compensation valency is 0.6～0.8 yuan/kWh.
As can be seen here, national policy is just progressively increasing the compensation dynamics to fired power generating unit peak modulation capacity；Require thermoelectricity simultaneously
Unit must ensure the heating quality of resident when peak load regulation network is carried out, and this just further increases fired power generating unit peak regulation
Difficulty.Therefore, fired power generating unit power peak regulation how is effectively carried out, and does not affect resident's heating quality, thermal power plant is come
Say, play vital effect.Publication date is on 01 19th, 2011, the Chinese patent of Publication No. CN101950964A
In, disclosed a kind of system and dispatching method comprising cogeneration units and pure condensed steam formula fired power generating unit also could not be really real
The function of unit motility is lifted now.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency present in prior art, and provides a kind of reasonable in design,
Dependable performance, is advantageously implemented the cogeneration units depth peak regulation system of unit power peak regulation and thermic load peak load shifting.
The technical scheme in the invention for solving the above technical problem is：The cogeneration units depth peak regulation system bag
Boiler, steam turbine, electromotor, heat exchange station, heat user, heat supply extraction steam pipe and heat supply pipeline are included, the steam turbine and electromotor connect
Connect, the electromotor and electrical network connect, the steam turbine passes through heat supply extraction steam pipe and heat exchange station connects, and the heat exchange station is by supplying
Hot channel and heat user connect, and its construction features is：Also include heat transmission equipment, regenerative apparatus, main steam pipe, reheated steam pipe
And reducing-and-cooling plant, the boiler and main steam pipe connection, the main steam pipe be divided into two branch roads respectively with steam turbine and
Reducing-and-cooling plant connect, the steam turbine and reheated steam pipe connection, the reheated steam pipe be divided into two branch roads respectively with
Boiler and reducing-and-cooling plant connection, the reducing-and-cooling plant, heat transmission equipment and regenerative apparatus are sequentially connected by pipeline, institute
State regenerative apparatus to connect by pipeline and heat supply pipeline.
Preferably, this utility model also includes that valve A and valve B, the valve A and valve B are separately mounted to main steaming
On two branch roads of steam pipe.
Preferably, this utility model also includes that valve C, the valve C are arranged on for connecting heat transmission equipment and accumulation of heat
On the pipeline of device.
Preferably, this utility model also includes that valve D and valve E, the valve D and valve E are installed in heating tube
On road, valve D and valve E is located at the both sides of the junction point that regenerative apparatus is connected with heat supply pipeline respectively.
Preferably, this utility model also includes that valve F, the valve F are arranged on for connecting regenerative apparatus and heat supply
On the pipeline of pipeline.
Preferably, this utility model also includes that valve H, the valve H are arranged on reheated steam pipe.
Preferably, this utility model also includes that valve G and valve J, the valve G and valve J are separately mounted to reheating
On two branch roads of steam pipe.
Preferably, steam turbine described in the utility model is extraction condensing type thermal power plant unit or back pressure type thermal power plant unit.
A kind of operation method of described cogeneration units depth peak regulation system, it is characterised in that：The operation method
The step of it is as follows：
1）When steam turbine is back pressure type thermal power plant unit, by the operating condition, main steam or the reheated steam that adjust boiler
The operating condition of flow and regenerative apparatus of steam turbine and heat transmission equipment is respectively enterd meeting peak regulation demand；
When electrical load requirement is decreased or increased, reduced by increaseing or decreasing the method for reheated steam flow or
Improve the generation load of thermoelectricity unit, the reheated steam for increasing or decreasing this partial heat is stored furthermore with regenerative apparatus or
Discharge, to reach the matching of electric load and thermic load；And/or, the evaporation capacity of boiler is reduced or increased, is decreased or increased
Main steam into steam turbine flow to meet power peak regulation demand, while balancing steamer using regenerative apparatus accumulation of heat or heat release
Thermic load supply-demand difference between the two needed for machine heating demand and heat user；If both the above method still cannot meet electricity
Power peak regulation demand, then by a part of main steam is introduced heat transmission equipment, further to reduce the throttle flow of steam turbine, with depth
The generation load of thermoelectricity unit is reduced, and the heat of main steam release is supplied directly to heat supply network, or heat is deposited using regenerative apparatus
Storage is got up；
2）When steam turbine is extraction condensing type thermal power plant unit, by the operating condition of adjustment boiler, the operation work of regenerative apparatus
Condition, main steam or reheated steam respectively enter steam turbine and the flow of heat transmission equipment and the operating condition of steam turbine to meet tune
Peak demand；
When electrical load requirement is decreased or increased, by increased or decrease heating and draw gas or reheated steam flow side
The heating for increasing or decreasing is drawn gas or reheating reducing or improve the generation load of thermoelectricity unit by method furthermore with regenerative apparatus
This partial heat storage of steam is discharged, to reach the matching of electric load and thermic load；And/or, reduce or increase boiler
Evaporation capacity, the flow for decreasing or increasing main steam into steam turbine to meet power peak regulation demand, while using accumulation of heat fill
Put accumulation of heat or heat release to balance thermic load supply-demand difference between the two needed for steam turbine heating demand and heat user；If more than
Two methods still cannot meet power peak regulation demand, then by a part of main steam is introduced heat transmission equipment, further to subtract
The throttle flow of few steam turbine, reduces the generation load of thermoelectricity unit with depth, and the heat of main steam release is supplied directly to heat supply network,
Or heat is stored using regenerative apparatus.
Preferably, this utility model carries out heat supply or using storage for heat user using the steam that cogeneration units are produced
When thermal carries out accumulation of heat, the steam that prioritizing selection heat supply extraction steam pipe is provided, the steam for secondly providing for reheated steam pipe, finally
For the steam that main steam pipe is provided.
This utility model compared with prior art, with advantages below and effect：Simple structure, reasonable in design, performance can
Lean on, based on accumulation of heat peak regulation system, appropriate design realizes that thermal power plant meets the power peak regulation requirement of electrical network, can also realize that thermoelectricity joins
The purpose of heat production load peak load shifting；After having used this utility model, it is possible to achieve fired power generating unit meets heat supply simultaneously and sends out
The demand of electricity, is worth with higher practice.
Description of the drawings
Fig. 1 is the structural representation of cogeneration units depth peak regulation system in this utility model embodiment.
In figure：1-boiler, 2-steam turbine, 3-electromotor, 4-heat exchange station, 5-heat user, 6-heat transmission equipment, 7-
Regenerative apparatus, 8-valve A, 9-valve B, 10-valve C, 11-valve D, 12-valve E, 13-valve F, 14-valve G,
15-valve H, 16-valve J, 17-main steam pipe, 18-reheated steam pipe, 19-heat supply extraction steam pipe, 20-heat supply pipeline,
21-reducing-and-cooling plant.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are right
It is of the present utility model explanation and this utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1, the cogeneration units depth peak regulation system in the present embodiment includes boiler 1, steam turbine 2, electromotor
3rd, heat exchange station 4, heat user 5, heat transmission equipment 6, regenerative apparatus 7, valve A8, valve B9, valve C10, valve D11, valve E12,
Valve F13, valve G14, valve H15, valve J16, main steam pipe 17, reheated steam pipe 18, heat supply extraction steam pipe 19, heat supply pipeline
20 and reducing-and-cooling plant 21, wherein, steam turbine 2 can be extraction condensing type thermal power plant unit or back pressure type thermal power plant unit.
Steam turbine 2 and electromotor 3 in the present embodiment connects, and electromotor 3 and electrical network connect, and steam turbine 2 is taken out by heat supply
Steam pipe 19 and heat exchange station 4 connect, and heat exchange station 4 passes through heat supply pipeline 20 and heat user 5 connects, and boiler 1 and main steam pipe 17 connect.
Main steam pipe 17 is divided into two branch roads and is connected with steam turbine 2 and reducing-and-cooling plant 21 respectively, i.e., main steam pipe 17 separate two
In bar branch road, a branch road is connected with steam turbine 2, and another branch road is connected with reducing-and-cooling plant 21.
Steam turbine 2 and reheated steam pipe 18 in the present embodiment connects, reheated steam pipe 18 be divided into two branch roads respectively with
Boiler 1 and reducing-and-cooling plant 21 connect, i.e., in two branch roads that reheated steam pipe 18 is separated, a branch road is connected with boiler 1,
Another branch road is connected with reducing-and-cooling plant 21.Reducing-and-cooling plant 21, heat transmission equipment 6 and regenerative apparatus 7 by pipeline according to
Secondary connection, regenerative apparatus 7 passes through pipeline and heat supply pipeline 20 connects.
Valve A8 and valve B9 in the present embodiment is separately mounted on two branch roads of main steam pipe 17, wherein, valve
, on the branch road being connected with steam turbine 2, valve B9 is installed in the branch road being connected with reducing-and-cooling plant 21 for A8.Valve C10
Installed in for connecting the pipeline of heat transmission equipment 6 and regenerative apparatus 7.Valve D11 and valve E12 are installed in heat supply pipeline 20
On, valve D11 and valve E12 is located at the both sides of the junction point that regenerative apparatus 7 is connected with heat supply pipeline 20, i.e. valve respectively
D11, regenerative apparatus 7 are arranged in order along heat supply pipeline 20 with the junction point and valve E12 of heat supply pipeline 20.Valve F13 is installed
It is being used to connect the pipeline of regenerative apparatus 7 and heat supply pipeline 20.Valve H15 is arranged on reheated steam pipe 18.Valve G14 and
Valve J16 is separately mounted on two branch roads of reheated steam pipe 18, wherein, valve G14 is installed in the branch road being connected with boiler 1
On, valve J16 is installed in the branch road being connected with reducing-and-cooling plant 21.
The step of operation method of the cogeneration units depth peak regulation system in the present embodiment, is as follows.
1）When steam turbine 2 is back pressure type thermal power plant unit, steamed by the operating condition, main steam or the reheating that adjust boiler 1
Vapour respectively enters the operating condition of steam turbine 2 and the flow and regenerative apparatus 7 of heat transmission equipment 6 to meet peak regulation demand.
When electrical load requirement is decreased or increased, reduced by increaseing or decreasing the method for reheated steam flow or
The generation load of thermoelectricity unit is improved, this partial heat is stored by the reheated steam for increasing or decreasing furthermore with regenerative apparatus 7
Or discharge, to reach the matching of electric load and thermic load；And/or, reduce or increase boiler 1 evaporation capacity, reduce or
Increase main steam into steam turbine 2 flow to meet power peak regulation demand, while being put down using 7 accumulation of heat of regenerative apparatus or heat release
Weighing apparatus 2 heating demand of steam turbine and thermic load supply-demand difference between the two needed for heat user 5；If both the above method still without
Method meets power peak regulation demand, then by a part of main steam is introduced heat transmission equipment 6, further to reduce entering for steam turbine 2
Vapour amount, reduces the generation load of thermoelectricity unit with depth, and the heat of main steam release is supplied directly to heat supply network, or is filled using accumulation of heat
Put 7 to store heat.
2）When steam turbine 2 is extraction condensing type thermal power plant unit, by the operating condition of adjustment boiler 1, the operation of regenerative apparatus 7
Operating mode, main steam or reheated steam are respectively enterd steam turbine 2 and are come with the flow of heat transmission equipment 6 and the operating condition of steam turbine 2
Meet peak regulation demand.
When electrical load requirement is decreased or increased, by increased or decrease heating and draw gas or reheated steam flow side
The heating for increasing or decreasing is drawn gas or again reducing or improve the generation load of thermoelectricity unit by method furthermore with regenerative apparatus 7
This partial heat storage of vapourss is discharged, to reach the matching of electric load and thermic load；And/or, reduce or increase pot
The evaporation capacity of stove 1, the flow for decreasing or increasing main steam into steam turbine 2 is to meet power peak regulation demand, while utilize storing
7 accumulation of heat of thermal or heat release are balancing 2 heating demand of steam turbine and thermic load supply-demand difference between the two needed for heat user 5；
If both the above method still cannot meet power peak regulation demand, by a part of main steam is introduced heat transmission equipment 6, come
The throttle flow of steam turbine 2 is further reduced, the generation load of thermoelectricity unit is reduced with depth, the heat of main steam release is directly supplied
Heat supply network is given to, or heat is stored using regenerative apparatus 7.
Heat supply is carried out or using regenerative apparatus 7 for heat user 5 using the steam that cogeneration units are produced in the present embodiment
When carrying out accumulation of heat, the steam that prioritizing selection heat supply extraction steam pipe 19 is provided, the steam for secondly providing for reheated steam pipe 18, finally for
The steam that main steam pipe 17 is provided.
This utility model is based on regenerative apparatus 7, and appropriate design realizes that the power peak regulation of cogeneration units and thermic load are cut
Peak load, with this utility model after, not only can realize simultaneously unit meet for heat and generating power demand, pot can also be realized
Stove is chronically at preferably operating condition, is worth with higher practice.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Claiming etc. can be with difference, and above the content described in this specification is only to this utility model structure example explanation.
Equivalence changes or simple change that construction, feature and principle described in all foundation this utility model inventional ideas is done, wrap
Include in the protection domain of this utility model patent.This utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplements or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to protection domain of the present utility model.
Claims (8)
1. a kind of cogeneration units depth peak regulation system, including boiler（1）, steam turbine（2）, electromotor（3）, heat exchange station（4）、
Heat user（5）, heat supply extraction steam pipe（19）And heat supply pipeline（20）, the steam turbine（2）And electromotor（3）Connection, the steamer
Machine（2）By heat supply extraction steam pipe（19）And heat exchange station（4）Connection, the heat exchange station（4）By heat supply pipeline（20）And heat user
（5）Connection, it is characterised in that：Also include heat transmission equipment（6）, regenerative apparatus（7）, main steam pipe（17）, reheated steam pipe（18）
And reducing-and-cooling plant（21）, the boiler（1）And main steam pipe（17）Connection, the main steam pipe（17）It is divided into two branch roads
Respectively with steam turbine（2）And reducing-and-cooling plant（21）Connection, the steam turbine（2）With reheated steam pipe（18）Connection, it is described
Reheated steam pipe（18）Be divided into two branch roads respectively with boiler（1）And reducing-and-cooling plant（21）Connection, the pressure and temperature reducing dress
Put（21）, heat transmission equipment（6）And regenerative apparatus（7）It is sequentially connected by pipeline, the regenerative apparatus（7）By pipeline and heat supply
Pipeline（20）Connection.
2. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve A（8）With
Valve B（9）, the valve A（8）With valve B（9）It is separately mounted to main steam pipe（17）Two branch roads on.
3. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve C（10）,
The valve C（10）Installed in for connecting heat transmission equipment（6）And regenerative apparatus（7）Pipeline on.
4. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve D（11）
With valve E（12）, the valve D（11）With valve E（12）It is installed in heat supply pipeline（20）On, valve D（11）With valve E
（12）Regenerative apparatus is located at respectively（7）With heat supply pipeline（20）The both sides of the junction point of connection.
5. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve F（13）,
The valve F（13）Installed in for connecting regenerative apparatus（7）And heat supply pipeline（20）Pipeline on.
6. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve H（15）,
The valve H（15）Installed in reheated steam pipe（18）On.
7. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：Also include valve G（14）
With valve J（16）, the valve G（14）With valve J（16）It is separately mounted to reheated steam pipe（18）Two branch roads on.
8. cogeneration units depth peak regulation system according to claim 1, it is characterised in that：The steam turbine（2）For
Extraction condensing type thermal power plant unit or back pressure type thermal power plant unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958080.6U CN206054009U (en) | 2016-08-29 | 2016-08-29 | A kind of cogeneration units depth peak regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958080.6U CN206054009U (en) | 2016-08-29 | 2016-08-29 | A kind of cogeneration units depth peak regulation system |
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| Publication Number | Publication Date |
|---|---|
| CN206054009U true CN206054009U (en) | 2017-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958080.6U Withdrawn - After Issue CN206054009U (en) | 2016-08-29 | 2016-08-29 | A kind of cogeneration units depth peak regulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437876A (en) * | 2016-08-29 | 2017-02-22 | 华电电力科学研究院 | Cogeneration unit deep peak regulating system and running method thereof |
| CN108443957A (en) * | 2018-02-26 | 2018-08-24 | 南京友智科技有限公司 | The peak regulation heat supply method that a kind of big thermoelecrtic, hold over system jointly control |
| CN109058966A (en) * | 2018-08-29 | 2018-12-21 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of power supply unit depth peak regulation system and its peak regulating method |
| CN114017149A (en) * | 2021-09-18 | 2022-02-08 | 华能国际电力江苏能源开发有限公司南通电厂 | Heat supply steam source matching system and method under deep peak regulation working condition |
-
2016
- 2016-08-29 CN CN201620958080.6U patent/CN206054009U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437876A (en) * | 2016-08-29 | 2017-02-22 | 华电电力科学研究院 | Cogeneration unit deep peak regulating system and running method thereof |
| CN106437876B (en) * | 2016-08-29 | 2018-03-27 | 华电电力科学研究院 | A kind of cogeneration units depth peak regulation system and its operation method |
| CN108443957A (en) * | 2018-02-26 | 2018-08-24 | 南京友智科技有限公司 | The peak regulation heat supply method that a kind of big thermoelecrtic, hold over system jointly control |
| CN109058966A (en) * | 2018-08-29 | 2018-12-21 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of power supply unit depth peak regulation system and its peak regulating method |
| CN114017149A (en) * | 2021-09-18 | 2022-02-08 | 华能国际电力江苏能源开发有限公司南通电厂 | Heat supply steam source matching system and method under deep peak regulation working condition |
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