CN206055732U - A kind of new heat-supplying unit - Google Patents
A kind of new heat-supplying unit Download PDFInfo
- Publication number
- CN206055732U CN206055732U CN201621005550.3U CN201621005550U CN206055732U CN 206055732 U CN206055732 U CN 206055732U CN 201621005550 U CN201621005550 U CN 201621005550U CN 206055732 U CN206055732 U CN 206055732U
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- steam
- heat
- heat supply
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- boiler
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Abstract
This utility model discloses a kind of new heat-supplying unit，On the basis of steam turbine thermal power plant unit，When unit because when non-boiler failure reason causes compressor emergency shutdown，Using boiler reheated steam，Thermal source is provided to heat supply network heating system by reheating steam system，Electric control valve and related hydrophobic pipeline and valve are provided with reheating steam system to heat supply network header vapor pipeline，Ensure that this section of pipeline is in hot stand-by duty，After steam turbine is stopped transport，Boiler load is adjusted by high pressure turbine by vapour system and low-pressure bypass system，Ensure that reheating steam system steam parameter meets heat supply network heat demand，And ensure when non-boiler failure is shut down，Heat network system has the ability for continuing external heat supply，This utility model moment in unit normal operation keeps the stand-by heat of reheated steam pipeline to heat supply network heating system pipeline，Basis is provided for the switching of heat supply network heat-supplying mode.
Description
Technical field
This utility model is related to the reheating steam system of Thermal Power Station, high pressure turbine by vapour system and heat supply network heating system
Field, and in particular to the switching mode between the adjustment of reheating steam system operational factor and two kinds of heating systems, it is ensured that
In the case where steam turbine is stopped transport, heat network system has the ability of lasting heat supply.
Background technology
Recently as expanding economy, Urbanization Process In China is further increased, in the face of growing housing need,
Urban Real Estate cause constantly develops, while the pressure of district heating system is also increased, for the source of heating system ---
Thermal Power Station also faces the pressure of heat supply, is that to ensure that each power plant of heat supply in winter demand is technically carried out to heating system more
Square upgrading, but for operating steam turbine, once unit occurs accident causes unit outage, will be unable to ensure
Heating system has the ability of lasting heat supply.
Utility model content
The purpose of this utility model is to realize that thermal power plant unit realizes heat supply network heating system in the situation of non-boiler failure
Lasting heat capacity, provide multi-ensuring for heat supply network heating system.By the pipe for setting up reheated steam to heat supply network header vapor
Road, by the use of reheated steam as standby heat source, carries out thermal source output, keeps continuing for heat supply network heating system to heat supply network heating system
Heat capacity.
This utility model is adopted the technical scheme that to solve above-mentioned technical problem：
A kind of new heat-supplying unit, by boiler, high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder and heat network system by pipeline connection
Into the boiler is connected with high pressure cylinder, intermediate pressure cylinder respectively, and the superheated steam of boiler does work heel row to reheating steaming through high pressure cylinder
Vapour system is heated, into intermediate pressure cylinder acting, reheating steam system and high pressure turbine by vapour system and low voltage bypass after heating
System connects, and when non-boiler failure occurs in Turbo-generator Set, closes steam turbine heat supply network heat supply valve, starts high pressure turbine by and steams
Vapour system and low-pressure bypass system, reheating steam system is connected by pipeline with heat supply network heat supply main pipe, adjusts the reheating of boiler
Steam parameter, extracted steam from turbine heat supply switch to boiler reheating steam system heat supply, and reheated steam is through temperature-decreased pressure reducer to heat
Net system provides thermal source.
Further, electric control valve is set on the pipeline of reheating steam system to heat supply network header vapor, and in the section pipe
Hydrophobic pipeline and valve are set on road.
Further, pre- heating coil is set on the pipeline of reheating steam system to heat supply network header vapor, makes reheating steam system
Pipeline to heat supply network header vapor is in hot stand-by duty.
Further, the new heat-supplying unit adjusts the reheated steam parameter of boiler by boiler combustion system.
The beneficial effects of the utility model are：On the existing heat capacity of unit, by by reheating steam system with
Heat supply network header vapor is connected, and makes reheating steam system as the standby heat source of heat supply network heating system, by boiler combustion system
Adjustment, make reheated steam parameter meet heating system demand, at the same by former extracted steam from turbine heat supply be transformed in time reheating steaming
Vapour system heat supply, it is ensured that heat supply network heating system possesses the ability for continuing external heat supply.This utility model innovative point is：1st, in machine
On the basis of the existing heat capacity of group, reheating steam system is connected with heat supply network heating system, it is ensured that stop in non-boiler failure
During machine, heat network system has the ability for continuing external heat supply；2nd, in unit normal operation, the moment keeps reheated steam pipeline extremely
The stand-by heat of heat supply network heating system pipeline, provides basis for the switching of heat supply network heat-supplying mode.
Description of the drawings
Fig. 1 is system schematic of the present utility model.
Specific embodiment
This utility model provides a kind of new heat supply mode, and its core technology is under the operating mode for shutting down not blowing out, directly
Using the heat capacity of boiler, directly continuable heat is provided to heat supply network heating system using boiler reheating steam system steam
Source, provides multi-ensuring for heat supply network heating system.Therefore, it is the multi-ensuring of realizing heat supply network heating system, it is necessary first to real
The connection of existing reheating steam system and heat network system, using reheating steam system as heat supply network heating system stand-by heat thermal source, with
Reheated steam is facilitated to put into heat network system at any time, so as to ensure the lasting heat capacity of heat supply network heating system.Next needs to realize
In steam turbine catastrophic failure, the rapid Load adjustment of steam generator system energy enables steam parameter to meet the demand of heat supply network heating system,
To finally accomplish it is safe, timely switch two kinds of heat-supplying modes, it is ensured that heat supply network heating system continues external heat supply.
Concrete technical scheme is as follows：A kind of new heat-supplying unit, as shown in figure 1, by boiler 1, high pressure cylinder 2, intermediate pressure cylinder 3,
Low pressure (LP) cylinder 4 and heat network system 6 are formed by connecting by pipeline, and the boiler is connected with high pressure cylinder, intermediate pressure cylinder respectively, the mistake of boiler
Vapourss are heated to reheating steam system 7 through high pressure cylinder acting heel row, are done work into intermediate pressure cylinder after heating, reheated steam
System 7 is connected with high pressure turbine by vapour system 8 and low-pressure bypass system 9, when non-boiler failure occurs in Turbo-generator Set, is closed
Steam turbine heat supply network heat supply valve is closed, starts high pressure turbine by vapour system 8 and low-pressure bypass system 9, by reheating steam system 7 and heat
Net heat supply main pipe 10 is connected by pipeline, adjusts the reheated steam parameter of boiler, extracted steam from turbine heat supply is switched to boiler again
Vapourss system heat supply, reheated steam provide thermal source to heat network system through temperature-decreased pressure reducer 5.
As shown in figure 1, electric control valve is set on the pipeline of reheating steam system 7 to heat supply network header vapor 10, and
Hydrophobic pipeline 11 and valve are set on this section of pipeline.
Pre- heating coil 12 is also set up on the pipeline of reheating steam system 7 to heat supply network header vapor 10, reheating steam system is made
Pipeline to heat supply network header vapor is in hot stand-by duty.
The new heat-supplying unit adjusts the reheated steam parameter of boiler by boiler combustion system, then takes out steam turbine
Vapour heat supply switches to boiler reheating steam system heat supply.
Specific embodiment of the present utility model is：On the basis of steam turbine thermal power plant unit, by by reheated steam system
System and the connection of heat supply network heating system, provide steam by reheating steam system, provide thermal source for heat supply network heating system.Specifically connect
Reheating steam system is connect to heat supply network header vapor, and electric control valve, hydrophobic pipeline and related valve are set；There is event in steam turbine
During barrier, before standby steam source is opened, adjust rapidly boiler load in cut-out heat supply network steam supply valve behind the door, by hp by-pass system,
Low-pressure bypass system maintains Boiler Stable Combustion, adjusts reheated steam parameter by boiler combustion, meets vapor (steam) temperature pressure
Heat supply network heat demand；Stably, properly rear reheating steam system of opening, to heat supply network header vapor electric control valve, passes through steam parameter
Temperature-decreased pressure reducer adjusts the steam parameter into heat network system, while should in thermal source switching when admission passage valve is opened
Notice that pipeline is hydrophobic, it is ensured that hydrophobic pipeline is unimpeded, prevent pipeline blocked drain from causing pipe vibration；With the switching of heat source
Finish, should notice constantly that heat network system i.e. heat exchangers for district heating enters vapour and leaving water temperature, it is to avoid big ups and downs occurs in throttle (steam) temperature, together
When ensure that boiler working condition is stable.
The beneficial effects of the utility model are：On the existing heat capacity of unit, by by reheating steam system with
Heat supply network header vapor is connected, and makes reheating steam system as the standby heat source of heat supply network heating system, by boiler combustion system
Adjustment, make reheated steam parameter meet heating system demand, at the same by former extracted steam from turbine heat supply be transformed in time reheating steaming
Vapour system heat supply, it is ensured that heat supply network heating system possesses the ability for continuing external heat supply.This utility model innovative point is：1st, in machine
On the basis of the existing heat capacity of group, reheating steam system is connected with heat supply network heating system, it is ensured that stop in non-boiler failure
During machine, heat network system has the ability for continuing external heat supply；2nd, in unit normal operation, the moment keeps reheated steam pipeline extremely
The stand-by heat of heat supply network heating system pipeline, provides basis for the switching of heat supply network heat-supplying mode.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and modification can also be made, these change
Enter protection domain of the present utility model is also should be regarded as with modification.
Claims (4)
1. a kind of new heat-supplying unit, it is characterised in that：By boiler (1), high pressure cylinder (2), intermediate pressure cylinder (3), low pressure (LP) cylinder (4) and heat
Net system (6) is formed by connecting by pipeline, and the boiler is connected with high pressure cylinder, intermediate pressure cylinder respectively, the superheated steam Jing of boiler
Cross high pressure cylinder acting heel row to be heated to reheating steam system (7), do work into intermediate pressure cylinder after heating, reheating steam system
(7) it is connected with high pressure turbine by vapour system (8) and low-pressure bypass system (9), when there is non-boiler failure in Turbo-generator Set,
Steam turbine heat supply network heat supply valve is closed, starts high pressure turbine by vapour system (8) and low-pressure bypass system (9), by reheated steam system
System (7) is connected by pipeline with heat supply network heat supply main pipe (10), adjusts the reheated steam parameter of boiler, and extracted steam from turbine supplies hot-swap
For boiler reheating steam system heat supply, reheated steam is through temperature-decreased pressure reducer (5) to heat network system offer thermal source.
2. new heat-supplying unit as claimed in claim 1, it is characterised in that：It is female to heat supply network steam supply in reheating steam system (7)
Electric control valve is set on the pipeline of pipe (10), and hydrophobic pipeline (11) and valve are set on this section of pipeline.
3. new heat-supplying unit as claimed in claim 1, it is characterised in that：It is female to heat supply network steam supply in reheating steam system (7)
Pre- heating coil (12) is set on the pipeline of pipe (10), makes the pipeline of reheating steam system to heat supply network header vapor be in stand-by heat shape
State.
4. new heat-supplying unit as claimed in claim 1, it is characterised in that：The new heat-supplying unit passes through boiler combustion system
The reheated steam parameter of system adjustment boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005550.3U CN206055732U (en) | 2016-08-30 | 2016-08-30 | A kind of new heat-supplying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005550.3U CN206055732U (en) | 2016-08-30 | 2016-08-30 | A kind of new heat-supplying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206055732U true CN206055732U (en) | 2017-03-29 |
Family
ID=58379301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621005550.3U Expired - Fee Related CN206055732U (en) | 2016-08-30 | 2016-08-30 | A kind of new heat-supplying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206055732U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060922A (en) * | 2017-04-28 | 2017-08-18 | 申能股份有限公司 | The auxiliary vapour system and its steam supplying method in thermal power plant |
| CN107152319A (en) * | 2017-06-23 | 2017-09-12 | 山东中实易通集团有限公司 | A kind of adjacent machine steam of supercritical unit mutually helps system and method |
| CN107882601A (en) * | 2017-10-30 | 2018-04-06 | 北京兆阳光热技术有限公司 | A kind of hot heat balance method of reheating thermal store heat storage and photo-thermal energy converting system |
| CN108662647A (en) * | 2018-05-09 | 2018-10-16 | 宋涛 | Cogeneration units bypass Heating Adjustment running gear and operation method |
| CN110953571A (en) * | 2019-10-16 | 2020-04-03 | 孙少强 | Heat supply steam residual pressure cascade utilization system applied to coal-fired heat supply unit |
| CN114877307A (en) * | 2022-04-15 | 2022-08-09 | 华电电力科学研究院有限公司 | Double-pumping back pressure heat supply system capable of realizing high-parameter heat supply and working method thereof |
| CN114941552A (en) * | 2022-05-13 | 2022-08-26 | 华电电力科学研究院有限公司 | Shutdown non-shutdown heat supply rapid switching control method based on large supercritical reheating type double-extraction back pressure unit |
| CN116734235A (en) * | 2023-08-02 | 2023-09-12 | 瑞纳智能设备股份有限公司 | Peak-to-frequency modulation system and method using steam heat supply network |
-
2016
- 2016-08-30 CN CN201621005550.3U patent/CN206055732U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060922A (en) * | 2017-04-28 | 2017-08-18 | 申能股份有限公司 | The auxiliary vapour system and its steam supplying method in thermal power plant |
| CN107060922B (en) * | 2017-04-28 | 2023-07-25 | 申能股份有限公司 | Auxiliary steam system of thermal power plant and steam supply method thereof |
| CN107152319A (en) * | 2017-06-23 | 2017-09-12 | 山东中实易通集团有限公司 | A kind of adjacent machine steam of supercritical unit mutually helps system and method |
| CN107152319B (en) * | 2017-06-23 | 2023-06-02 | 山东中实易通集团有限公司 | Supercritical unit neighbor steam mutual aid system and method thereof |
| CN107882601A (en) * | 2017-10-30 | 2018-04-06 | 北京兆阳光热技术有限公司 | A kind of hot heat balance method of reheating thermal store heat storage and photo-thermal energy converting system |
| CN108662647A (en) * | 2018-05-09 | 2018-10-16 | 宋涛 | Cogeneration units bypass Heating Adjustment running gear and operation method |
| CN110953571A (en) * | 2019-10-16 | 2020-04-03 | 孙少强 | Heat supply steam residual pressure cascade utilization system applied to coal-fired heat supply unit |
| CN114877307A (en) * | 2022-04-15 | 2022-08-09 | 华电电力科学研究院有限公司 | Double-pumping back pressure heat supply system capable of realizing high-parameter heat supply and working method thereof |
| CN114941552A (en) * | 2022-05-13 | 2022-08-26 | 华电电力科学研究院有限公司 | Shutdown non-shutdown heat supply rapid switching control method based on large supercritical reheating type double-extraction back pressure unit |
| CN116734235A (en) * | 2023-08-02 | 2023-09-12 | 瑞纳智能设备股份有限公司 | Peak-to-frequency modulation system and method using steam heat supply network |
| CN116734235B (en) * | 2023-08-02 | 2023-12-05 | 瑞纳智能设备股份有限公司 | Peak-to-frequency modulation system and method using steam heat supply network |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20170830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |