CN206054015U - A kind of system for improving thermoelectricity pure condensate unit motility - Google Patents
A kind of system for improving thermoelectricity pure condensate unit motility Download PDFInfo
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- CN206054015U CN206054015U CN201620957697.6U CN201620957697U CN206054015U CN 206054015 U CN206054015 U CN 206054015U CN 201620957697 U CN201620957697 U CN 201620957697U CN 206054015 U CN206054015 U CN 206054015U
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Abstract
This utility model is related to a kind of system for improving thermoelectricity pure condensate unit motility.For thermoelectricity pure condensate unit, it is most important to excavate its peak load regulation potentiality, at present also without such technology.This utility model includes boiler, steam turbine, condenser, condensate pump, oxygen-eliminating device, feed pump, main steam pipe, cold reheated steam pipe and reheat heat steam pipe, is characterized in：Also including reducing-and-cooling plant A, reducing-and-cooling plant B, main steam bypass, reheat heat steam by-pass, steam pipe branch road A and steam pipe branch road B, the two ends of main steam bypass are connected on main steam pipe and cold reheated steam pipe, reducing-and-cooling plant A is arranged in main steam bypass, reducing-and-cooling plant B is connected with oxygen-eliminating device by steam pipe branch road A, reducing-and-cooling plant B passes through steam pipe branch road B and condenser connects, and reducing-and-cooling plant B passes through reheat heat steam by-pass and reheat heat steam pipe connects.This utility model is reasonable in design, can realize pure condensate unit load peak regulation.
Description
Technical field
This utility model belongs to power plant units motility and lifts field, and in particular to a kind of to improve the spirit of thermoelectricity pure condensate unit
The system of activity, is particularly suited for needing thermal power plant's pure condensate unit of quick response load variations.
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 will lift clean energy resource and dissolve space, while defining
" staged " compensation mechanism, 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 is 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：Thermoelectricity
Factory'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.For thermoelectricity pure condensate
Unit, excavates its peak load regulation potentiality, lifts unit motility, and the new forms of energy such as wind-powered electricity generation of dissolving to electrical network play vital work
With.Therefore, how to adopt an effective measure and lift the motility of fired power generating unit, become one of focus of concern.Publication date
It is on 01 19th, 2011, in the Chinese patent of Publication No. CN101950964A, disclosed a kind of comprising cogeneration units
With the system and dispatching method of pure condensed steam formula fired power generating unit, also really could not realize lifting the function of unit motility.
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 system of the raising thermoelectricity pure condensate unit motility of pure condensate unit load peak regulation.
The technical scheme in the invention for solving the above technical problem is：The raising thermoelectricity pure condensate unit motility is
System includes boiler, steam turbine, condenser, condensate pump, low pressure heat regenerative system, oxygen-eliminating device, feed pump, high-pressure extraction system, master
Steam pipe, cold reheated steam pipe and reheat heat steam pipe, the boiler pass through main steam pipe and reheat heat steam pipe and steam turbine
Connection, the steam turbine are connected with boiler by cold reheated steam pipe, the steam turbine, condenser, condensate pump, low pressure backheat
System, oxygen-eliminating device, feed pump, high-pressure extraction system and boiler are sequentially connected, and its construction features is：Also fill including pressure and temperature reducing
Put A, reducing-and-cooling plant B, valve B, valve C, valve D, valve E, valve F, main steam bypass, reheat heat steam by-pass, steaming
Steam pipe branch road A and steam pipe branch road B, the two ends of the main steam bypass are connected to main steam pipe and cold reheated steam pipe
On, the valve B, reducing-and-cooling plant A and valve C are sequentially arranged in main steam bypass, and the reducing-and-cooling plant B passes through
Steam pipe branch road A is connected with oxygen-eliminating device, and, on steam pipe branch road A, the reducing-and-cooling plant B is by steaming for the valve F
Steam pipe branch road B and condenser connection, on steam pipe branch road B, the reducing-and-cooling plant B passes through heat again to the valve E
Hot vapour by pass and the connection of reheat heat steam pipe, the valve D are arranged in reheat heat steam by-pass.
Preferably, this utility model also includes that valve A, the valve A are arranged on main steam pipe.
Preferably, this utility model also includes that valve H, the valve H are arranged on reheat heat steam pipe.
A kind of operation method of the system of described raising thermoelectricity pure condensate unit motility, its feature is：The operation
The step of method, is as follows：
When pure condensate unit load is quickly reduced or raised, adjusting feed pump reduces its flow increase or flow, now
Should ensure that boiler drum, oxygen-eliminating device and condenser water level allow minimum and highest limit between, recycling drum,
The storage emission capacity of oxygen-eliminating device and condenser realizes the quick response of unit load；Or, adjusting condensate pump increases its flow
Big or flow reduces, and now should ensure that the water level of boiler-steam dome, oxygen-eliminating device and condenser limits it in the minimum and highest for allowing
Between, reuse drum, oxygen-eliminating device and condenser stores the quick response that emission capacity realizes unit load；
When pure condensate unit load long-time is raised and lowered, unit is met by increasing or decreasing the evaporation capacity of boiler
The change of load；If the evaporation capacity of boiler cannot continue to reduce, main steam bypass is opened, main steam passes through reducing-and-cooling plant
A enters cold reheated steam pipe after carrying out pressure and temperature reducing, Jing after boiler reheating, by reheat heat steam by-pass Jing reducing-and-cooling plant B
After carrying out pressure and temperature reducing, condenser is entered by steam pipe branch road B, unit load is realized using the external heat dissipation capacity of condenser
Response；And/or, oxygen-eliminating device is entered by steam pipe branch road A, the sound of unit load is realized using the heat storage capacity of oxygen-eliminating device
Should.
Preferably, this utility model is when pure condensate unit load is quickly reduced or raised, adjusting feed pump makes its flow
Increase or flow reduce, and flow therein reduces to be included closing flow.
Preferably, this utility model is when pure condensate unit load is quickly reduced or raised, adjusting condensate pump flows which
Amount increase or flow reduce, and flow therein reduces to be included closing flow.
This utility model compared with prior art, with advantages below and effect：Simple structure, reasonable in design, performance can
Lean on, realize that the motility of thermoelectricity pure condensate unit is lifted by rational design；After having used this utility model, it is possible to achieve thermoelectricity
The depth peak modulation capacity of unit, meets demand of the electrical network to peak load regulation conscientiously, is worth with higher practice.
Description of the drawings
Fig. 1 is the structural representation of the system of raising thermoelectricity pure condensate unit motility in this utility model embodiment.
In figure：1-boiler, 2-steam turbine, 3-condenser, 4-condensate pump, 5-low pressure heat regenerative system, 6-deoxygenation
Device, 7-feed pump, 8-high-pressure extraction system, 9-reducing-and-cooling plant A, 10-reducing-and-cooling plant B, 11-valve A,
By 12-valve B, 13-valve C, 14-valve D, 15-valve E, 16-valve F, 17-main steam pipe, 18-main steam
Road, 19-cold reheated steam pipe, 20-reheat heat steam pipe, 21-reheat heat steam by-pass, 22-valve H, 23-steam pipe
Branch road A, 24-steam pipe branch road B.
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 system of the raising thermoelectricity pure condensate unit motility in the present embodiment includes boiler 1, steam turbine 2, coagulates
Vapour device 3, condensate pump 4, low pressure heat regenerative system 5, oxygen-eliminating device 6, feed pump 7, high-pressure extraction system 8, reducing-and-cooling plant A9, subtract
Warm decompressor B10, valve A11, valve B12, valve C13, valve D14, valve E15, valve F16, main steam pipe 17, main steaming
Vapour bypass 18, cold reheated steam pipe 19, reheat heat steam pipe 20, reheat heat steam by-pass 21, valve H22, steam pipe branch road A23
With steam pipe branch road B24.
Boiler 1 in the present embodiment passes through main steam pipe 17 and reheat heat steam pipe 20 is connected with steam turbine 2, valve A11
On main steam pipe 17, valve H22 is arranged on reheat heat steam pipe 20, steam turbine 2 by cold reheated steam pipe 19 and
Boiler 1 connects.Steam turbine 2, condenser 3, condensate pump 4, low pressure heat regenerative system 5, oxygen-eliminating device 6, feed pump 7, high-pressure extraction system
System 8 and boiler 1 are sequentially connected.
The two ends of the main steam bypass 18 in the present embodiment are connected on main steam pipe 17 and cold reheated steam pipe 19,
Valve B12, reducing-and-cooling plant A9 and valve C13 are sequentially arranged in main steam bypass 18, and reducing-and-cooling plant B10 is by steaming
Steam pipe branch road A23 is connected with oxygen-eliminating device 6, and on steam pipe branch road A23, reducing-and-cooling plant B10 passes through steam to valve F16
Pipe branch road B24 and condenser 3 connect, and on steam pipe branch road B24, reducing-and-cooling plant B10 passes through reheat heat to valve E15
Steam by-pass 21 and reheat heat steam pipe 20 connect, and valve D14 is arranged in reheat heat steam by-pass 21.
The step of operation method of the system of the raising thermoelectricity pure condensate unit motility in the present embodiment, is as follows.
When pure condensate unit load is quickly reduced or raised, adjusting feed pump 7 reduces its flow increase or flow（Until
Close flow）, now should ensure that the water level of the drum, oxygen-eliminating device 6 and condenser 3 of boiler 1 is limited in the minimum and highest for allowing
Between, reuse drum, oxygen-eliminating device 6 and condenser 3 stores the quick response that emission capacity realizes unit load；Or, adjust
Section condensate pump 4 makes its flow increase or flow reduction（Until closing flow）, now should ensure that 1 drum of boiler, 6 and of oxygen-eliminating device
The water level of condenser 3 reuses the storage heat release of drum, oxygen-eliminating device 6 and condenser 3 between the minimum and highest for allowing is limited
Ability realizes the quick response of unit load.
When pure condensate unit load long-time is raised and lowered, machine is met by increasing or decreasing the evaporation capacity of boiler 1
The change of group load；If the evaporation capacity of boiler 1 cannot continue to reduce, main steam bypass 18 is opened, main steam is subtracted by desuperheat
Pressure device A9 enters cold reheated steam pipe 19 after carrying out pressure and temperature reducing, Jing after 1 reheating of boiler, is subtracted by 21 Jing of reheat heat steam by-pass
Warm decompressor B10 carries out pressure and temperature reducing.Then, condenser 3 is entered by steam pipe branch road B24, using the external of condenser 3
Heat dissipation capacity is realizing the response of unit load；And/or, oxygen-eliminating device 6 is entered by steam pipe branch road A23, using the storage of oxygen-eliminating device 6
Heat energy power is realizing the response of unit load.
This utility model appropriate design lifts the system and operational approach of thermoelectricity pure condensate unit motility, with this practicality
After new, can give full play to the peak modulation capacity of pure condensate unit, strengthen response of the unit to network load, be that electrical network is dissolved wind-powered electricity generation
In the wide space that new forms of energy are provided, therefore, it 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 (3)
1. a kind of system for improving thermoelectricity pure condensate unit motility, including boiler（1）, steam turbine（2）, condenser（3）, condensate
Pump（4）, low pressure heat regenerative system（5）, oxygen-eliminating device（6）, feed pump（7）, high-pressure extraction system（8）, main steam pipe（17）, cold reheating
Steam pipe（19）With reheat heat steam pipe（20）, the boiler（1）By main steam pipe（17）With reheat heat steam pipe（20）With
Steam turbine（2）Connection, the steam turbine（2）By cold reheated steam pipe（19）With boiler（1）Connection, the steam turbine（2）, it is solidifying
Vapour device（3）, condensate pump（4）, low pressure heat regenerative system（5）, oxygen-eliminating device（6）, feed pump（7）, high-pressure extraction system（8）And boiler
（1）It is sequentially connected, it is characterised in that：Also include reducing-and-cooling plant A（9）, reducing-and-cooling plant B（10）, valve B（12）, valve
Door C（13）, valve D（14）, valve E（15）, valve F（16）, main steam bypass（18）, reheat heat steam by-pass（21）, steam
Pipe branch road A（23）With steam pipe branch road B（24）, the main steam bypass（18）Two ends be connected to main steam pipe（17）With
Cold reheated steam pipe（19）On, the valve B（12）, reducing-and-cooling plant A（9）With valve C（13）It is sequentially arranged at main steam
Bypass（18）On, the reducing-and-cooling plant B（10）By steam pipe branch road A（23）With oxygen-eliminating device（6）Connection, the valve F
（16）Installed in steam pipe branch road A（23）On, the reducing-and-cooling plant B（10）By steam pipe branch road B（24）And condenser
（3）Connection, the valve E（15）Installed in steam pipe branch road B（24）On, the reducing-and-cooling plant B（10）By reheat heat
Steam by-pass（21）With reheat heat steam pipe（20）Connection, the valve D（14）Installed in reheat heat steam by-pass（21）On.
2. it is according to claim 1 improve thermoelectricity pure condensate unit motility system, it is characterised in that：Also include valve A
（11）, the valve A（11）Installed in main steam pipe（17）On.
3. it is according to claim 1 improve thermoelectricity pure condensate unit motility system, it is characterised in that：Also include valve H
（22）, the valve H（22）Installed in reheat heat steam pipe（20）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957697.6U CN206054015U (en) | 2016-08-29 | 2016-08-29 | A kind of system for improving thermoelectricity pure condensate unit motility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957697.6U CN206054015U (en) | 2016-08-29 | 2016-08-29 | A kind of system for improving thermoelectricity pure condensate unit motility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054015U true CN206054015U (en) | 2017-03-29 |
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ID=58381983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620957697.6U Withdrawn - After Issue CN206054015U (en) | 2016-08-29 | 2016-08-29 | A kind of system for improving thermoelectricity pure condensate unit motility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640237A (en) * | 2016-08-29 | 2017-05-10 | 华电电力科学研究院 | System for improving thermal power straight condensing unit flexibility and running method of system |
| CN109654580A (en) * | 2019-01-29 | 2019-04-19 | 北京国电蓝天节能科技开发有限公司 | Heating system based on low pressure (LP) cylinder optical axis |
-
2016
- 2016-08-29 CN CN201620957697.6U patent/CN206054015U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640237A (en) * | 2016-08-29 | 2017-05-10 | 华电电力科学研究院 | System for improving thermal power straight condensing unit flexibility and running method of system |
| CN106640237B (en) * | 2016-08-29 | 2018-10-19 | 华电电力科学研究院 | A kind of system and its operation method improving thermoelectricity pure condensate unit flexibility |
| CN109654580A (en) * | 2019-01-29 | 2019-04-19 | 北京国电蓝天节能科技开发有限公司 | Heating system based on low pressure (LP) cylinder optical axis |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170329 Effective date of abandoning: 20181019 |
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| AV01 | Patent right actively abandoned |