CN115217560B - Auxiliary peak shaving system and method for heat supply network - Google Patents
Auxiliary peak shaving system and method for heat supply network Download PDFInfo
- Publication number
- CN115217560B CN115217560B CN202210802090.0A CN202210802090A CN115217560B CN 115217560 B CN115217560 B CN 115217560B CN 202210802090 A CN202210802090 A CN 202210802090A CN 115217560 B CN115217560 B CN 115217560B
- Authority
- CN
- China
- Prior art keywords
- steam
- pipeline
- heat supply
- cold
- regulating valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/04—Steam central heating systems operating with exhaust steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/06—Steam central heating systems operating with superheated steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/08—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The application provides a heat supply network auxiliary peak shaving system and a method, and relates to the field of peak shaving by utilizing operation of a cogeneration power plant. Wherein: the high-pressure bypass pipeline is connected with a high-pressure bypass to cold reheating pipeline in front of a high-pressure bypass valve, the tail end of the high-pressure bypass to cold reheating pipeline is connected to a cold reheating steam extraction pipeline behind the cold reheating steam heating regulating valve, and the high-pressure bypass to cold reheating pipeline is provided with the high-pressure bypass to cold reheating steam heating regulating valve; the low-pressure bypass pipeline is connected with a low-pressure bypass to branch cylinder pipeline, the tail end of the low-pressure bypass to branch cylinder pipeline is connected to a heat supply branch cylinder, and a low-pressure bypass to branch cylinder heat supply regulating valve is arranged on the low-pressure bypass to branch cylinder pipeline; the heat supply branch cylinder is connected with a heat supply network pipeline, the tail end of the heat supply network pipeline is connected to a second heat supply user, and a branch cylinder heat supply regulating valve is arranged on the heat supply network pipeline. The peak shaving capacity of the cogeneration unit can be improved by the scheme.
Description
Technical Field
The application relates to the field of peak regulation by utilizing operation of a cogeneration power plant, in particular to a heat supply network auxiliary peak regulation system and a heat supply network auxiliary peak regulation method.
Background
With the implementation of the 'double carbon' target, the new energy power generation market share is increasing, so that the power resource supply is cleaner and lower in carbonization. However, wind power and photovoltaic power have been rapidly developed, but the power generation capacity has characteristics of randomness, fluctuation and the like. The traditional thermal power generation power output has the characteristics of sustainability, stability and the like, but in order to match with new energy to generate power, higher requirements are put on peak regulation of the power market. As a cogeneration unit, in order to ensure the steam consumption of heat users, the problem of smaller load change range exists in the peak shaving process, so that the share of the cogeneration unit in the peak shaving market is smaller.
Disclosure of Invention
In order to solve the problems, the application provides a heat supply network auxiliary peak shaving system and a method.
According to a first aspect of the application, there is provided a heat supply network auxiliary peak shaving system, the system comprising a high pressure cylinder, a medium pressure cylinder, a low pressure cylinder, a condenser, a heat supply sub-cylinder and an auxiliary steam header, wherein:
the inlet end of the high-pressure cylinder is connected with a superheated steam pipeline, and the steam exhaust end of the high-pressure cylinder is connected with a cold re-steam pipeline; the cold re-steam pipeline is connected with a cold re-heat supply steam extraction pipeline, a cold re-steam extraction heat supply regulating valve is arranged on the cold re-heat supply steam extraction pipeline, and the tail end of the cold re-heat supply steam extraction pipeline is connected to a first heat supply user;
a high-pressure bypass to cold reheating pipeline is connected in front of a high-pressure bypass valve of the high-pressure bypass pipeline, the tail end of the high-pressure bypass to cold reheating pipeline is connected to a cold reheating steam extraction pipeline behind the cold reheating steam heating regulating valve, and the high-pressure bypass to cold reheating pipeline is provided with the high-pressure bypass to cold reheating steam heating regulating valve;
the inlet end of the medium pressure cylinder is connected with a hot re-steam pipeline, the steam extraction port of the medium pressure cylinder is connected with an industrial steam extraction pipeline, and the tail end of the industrial steam extraction pipeline is connected with the heat supply branch cylinder; an industrial steam extraction adjusting valve is arranged on the industrial steam extraction pipeline;
the low-pressure bypass pipeline is connected with a low-pressure bypass to branch cylinder pipeline, the tail end of the low-pressure bypass to branch cylinder pipeline is connected to the heat supply branch cylinder, and a low-pressure bypass to branch cylinder heat supply regulating valve is arranged on the low-pressure bypass to branch cylinder pipeline; the heat supply branch cylinder is connected with a heat supply network pipeline, the tail end of the heat supply network pipeline is connected to a second heat supply user, and a branch cylinder heat supply regulating valve is arranged on the heat supply network pipeline.
In some embodiments of the application, the industrial steam extraction to auxiliary steam pipeline and the industrial steam extraction to water supply pump turbine pipeline are both connected with an industrial steam extraction pipeline in front of the industrial steam extraction adjusting valve, the tail end of the industrial steam extraction to auxiliary steam pipeline is connected to the auxiliary steam header, and the industrial steam extraction to auxiliary steam pipeline is provided with the industrial steam extraction to auxiliary steam adjusting valve; the tail end of the industrial steam extraction to water feed pump turbine pipeline is connected to a water feed pump turbine, and an industrial steam extraction to water feed pump turbine regulating valve is arranged on the industrial steam extraction to water feed pump turbine pipeline; the auxiliary steam header is connected with an auxiliary steam to water feed pump turbine pipeline, the tail end of the auxiliary steam to water feed pump turbine pipeline is connected to the industrial steam to water feed pump turbine pipeline after the industrial steam is extracted to water feed pump turbine valve adjusting, and the auxiliary steam to water feed pump turbine pipeline is provided with the auxiliary steam to water feed pump turbine valve adjusting.
As one possible implementation manner, the cold re-steam pipeline is connected with a cold re-steam pipeline, the tail end of the cold re-steam pipeline is connected to the auxiliary steam header, and the cold re-steam pipeline is provided with a cold re-steam regulating valve.
In some embodiments of the application, the cold-to-auxiliary steam pipe before the cold-to-auxiliary steam valve is connected with a cold-to-industrial steam extraction pipe, the tail end of the cold-to-industrial steam extraction pipe is connected with an industrial steam extraction pipe after the industrial steam valve, and the cold-to-industrial steam extraction pipe is provided with a cold-to-steam separation cylinder valve.
In other embodiments of the present application, the high-pressure bypass-to-cold reheat valve before the high-pressure bypass-to-cold reheat valve is connected with a high-pressure bypass-to-branch cylinder pipe, the end of the high-pressure bypass-to-branch cylinder pipe is connected to the heat supply branch cylinder, and the high-pressure bypass-to-branch cylinder valve is installed on the high-pressure bypass-to-branch cylinder pipe.
According to a second aspect of the present application, there is provided a heat supply network auxiliary peak shaving method, which is applied to the heat supply network auxiliary peak shaving system described in the first aspect, and includes:
under normal operation conditions, the cold re-extraction heat supply regulating valve is opened and the opening degree thereof is adjusted to meet the requirements of the first heat supply user, and the industrial extraction regulating valve on the industrial extraction pipeline is opened and the opening degree thereof is adjusted to control the steam parameters of the heat supply sub-cylinder;
under peak regulation working conditions, if the load of the unit is reduced, the high-pressure bypass is opened to the cold-and-heat-supply regulating valve and the opening of the valve is regulated so as to meet the requirements of the first heat supply user, and the low-pressure bypass is opened to the heat-supply regulating valve of the branch cylinder and the opening of the valve is regulated so as to control the steam parameters of the heat-supply branch cylinder.
In some embodiments of the application, the method further comprises:
and under the normal operation condition, opening the industrial steam extraction to an auxiliary steam regulating valve and the industrial steam extraction to a water feeding pump steam turbine regulating valve and respectively regulating the respective opening degrees to regulate steam parameters.
In other embodiments of the application, the method further comprises:
under the deep peak regulation working condition, closing the cold re-extraction heat supply regulating valve, and increasing the opening of the high-pressure bypass to the cold re-extraction heat supply regulating valve to meet the requirements of the first heat supply user;
increasing the opening of the low-pressure bypass to the heat supply regulating valve of the branch cylinder, opening the cold-to-auxiliary steam regulating valve and regulating the opening of the cold-to-auxiliary steam regulating valve so as to meet the steam parameters of the heat supply branch cylinder and the auxiliary steam header;
and opening the auxiliary steam to the water feeding pump turbine to adjust the valve and adjust the opening of the valve so as to enable the water feeding pump turbine to work normally.
In still other embodiments of the present application, the method further comprises:
and under the deep peak regulation working condition, opening the valve regulating valve from the cold air cylinder to the air cylinder and adjusting the opening degree of the valve regulating valve to control the steam parameters of the heat supply air cylinder.
In still other embodiments of the present application, the method further comprises:
and under the deep peak regulation working condition, opening the high-pressure bypass to the valve regulating valve of the branch cylinder and adjusting the opening degree of the valve regulating valve so as to reduce the steam inlet quantity of the high-pressure cylinder.
According to the technical scheme of the application, the high-pressure bypass to the cold and heat supply pipeline and the low-pressure bypass to the air separation pipeline are added, so that the system can meet the requirements of heat supply users by combining superheated steam and hot and heat steam, the load change range under peak regulation working conditions can be enlarged, the steam quantity required by heat supply in the peak regulation process can be ensured, and the peak regulation capacity of the cogeneration unit is improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a block diagram of a heat supply network auxiliary peak shaving system according to an embodiment of the present application;
fig. 2 is a block diagram of another auxiliary peak shaving system for a heat supply network according to an embodiment of the present application;
fig. 3 is a flowchart of a method for auxiliary peak shaving of a heat supply network according to an embodiment of the present application;
fig. 4 is a flowchart of another auxiliary peak shaving method for a heat supply network according to an embodiment of the present application;
wherein, the reference numerals in fig. 1 are as follows:
e101-a high-pressure cylinder; e102-a medium pressure cylinder; e103-a low-pressure cylinder; e104-a condenser; e105-a heat supply split cylinder; e106-an auxiliary steam header; p101-superheated steam pipeline; p102-a cold re-steam pipeline; p103-high pressure bypass piping; p104-high pressure bypass to cold reheat pipeline; p105-a cold reheating steam extraction pipeline; p106-a thermal reheat steam line; p107-a low pressure bypass line; p108-bypassing the low pressure to the branch cylinder pipeline; p109-an industrial steam extraction pipeline; p110-industry steam extraction to an auxiliary steam pipeline; p111-industry draws steam to the water pump turbine pipeline; p112-auxiliary steam to a water feeding pump turbine pipeline; p113-heat supply network pipeline; p114-medium-low pressure communication pipeline; v101-a high pressure bypass valve; v102-cold re-extraction heat supply regulating valve; v103-bypass to cold and heat supply regulating valve; v104-bypass to the branch cylinder heat supply regulating valve; v105-an industrial extraction steam regulating valve; v106-industrial steam extraction to an auxiliary steam regulating valve; v107-industrial steam extraction to a water feeding pump turbine valve adjustment; v108-adjusting valve of auxiliary steam to the water feeding pump steam turbine; v109-branch cylinder heating valve; v110-a low pressure bypass valve; v111-medium-low pressure communicating tube butterfly valve;
the reference numerals in fig. 2 are as follows:
p201-cooling to an auxiliary steam pipeline; p202-cooling to an industrial steam extraction pipeline; p203-high pressure bypass to cold reheat line; v201-cooling to an auxiliary steam regulating valve; v202-cooling and then adjusting valves to the branch cylinders; v203-high pressure bypass to branch cylinder valve.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
It should be noted that, with implementation of the "two carbon" target, the new energy power generation market share is increasing increasingly, so that the power resource supply is cleaner and lower in carbonization. However, wind power and photovoltaic power have been rapidly developed, but the power generation capacity has characteristics of randomness, fluctuation and the like. The traditional thermal power generation power output has the characteristics of sustainability, stability and the like, but in order to match with new energy to generate power, higher requirements are put on peak regulation of the power market. As a cogeneration unit, in order to ensure the steam consumption of heat users, the problem of smaller load change range exists in the peak shaving process, so that the share of the cogeneration unit in the peak shaving market is smaller.
In order to solve the problems, the application provides a heat supply network auxiliary peak shaving system and a method.
Fig. 1 is a block diagram of a heat supply network auxiliary peak shaving system according to an embodiment of the present application. As shown in fig. 1, the system includes: a high-pressure cylinder E101, a medium-pressure cylinder E102, a low-pressure cylinder E103, a condenser E104, a heat supply branch cylinder E105 and an auxiliary steam header E106. The inlet end of the high-pressure cylinder E101 is connected with the superheated steam pipeline P101, the steam exhaust end of the high-pressure cylinder E101 is connected with the cold re-steam pipeline P102, the cold re-steam pipeline P102 is connected with the cold re-heat supply steam extraction pipeline P105, the cold re-heat supply steam extraction pipeline P105 is provided with the cold re-heat supply steam regulation valve V102, and the tail end of the cold re-heat supply steam extraction pipeline P105 is connected to a first heat supply user.
In some embodiments of the application, the high pressure bypass line P103 is connected from the superheated steam line P101 to the cold reheat line P102, and the high pressure bypass valve V101 is mounted on the high pressure bypass line P103. The high-pressure bypass pipeline P103 is connected with a high-pressure bypass to the cold reheating pipeline P104 before the high-pressure bypass valve V101, the tail end of the high-pressure bypass to the cold reheating pipeline P104 is connected with a cold reheating steam extraction pipeline P105 after the cold reheating steam heating regulating valve V102, and the high-pressure bypass to the cold reheating pipeline P104 is provided with the high-pressure bypass to the cold reheating steam heating regulating valve V103.
In some embodiments of the present application, the inlet end of the intermediate pressure cylinder E102 is connected to the hot re-steam pipe P106, the steam extraction port of the intermediate pressure cylinder E102 is connected to the industrial steam extraction pipe P109, and the end of the industrial steam extraction pipe P109 is connected to the heat supply branch cylinder E105, and the industrial steam extraction pipe P109 is provided with an industrial steam extraction valve V105. The exhaust steam of the medium-pressure cylinder E102 is discharged to the low-pressure cylinder E103 through a medium-low pressure communicating pipe P114, a medium-low pressure communicating pipe butterfly valve V111 is arranged on the medium-low pressure communicating pipe P114, and the low-pressure cylinder E103 discharges steam to the condenser E104. The low-pressure bypass pipeline P107 is connected to the condenser E104 from the hot re-steam pipeline P106, and a low-pressure bypass valve V110 is arranged on the low-pressure bypass pipeline P107.
The low-pressure bypass pipeline P107 is connected with a low-pressure bypass to branch cylinder pipeline P108, the tail end of the low-pressure bypass to branch cylinder pipeline P108 is connected to a heat supply branch cylinder E105, and a low-pressure bypass to branch cylinder heat supply regulating valve V104 is arranged on the low-pressure bypass to branch cylinder pipeline P108. The heat supply sub-cylinder E105 is connected with a heat supply network pipe P113, the tail end of the heat supply network pipe P113 is connected to a second heat supply user, and a sub-cylinder heat supply regulating valve V109 is arranged on the heat supply network pipe P113.
As shown in fig. 1, the auxiliary peak shaving system of the heat supply network according to the embodiment of the application may further include an industrial steam extraction to auxiliary steam pipeline P110 and an industrial steam extraction to water feeding pump turbine pipeline P111. The industrial steam extraction to auxiliary steam pipeline P110 and the industrial steam extraction to water supply pump steam turbine pipeline P111 are connected with an industrial steam extraction pipeline P109 in front of an industrial steam extraction adjusting valve V105, the tail end of the industrial steam extraction to auxiliary steam pipeline P110 is connected to an auxiliary steam header E106, and the industrial steam extraction to auxiliary steam pipeline P110 is provided with the industrial steam extraction to auxiliary steam adjusting valve V106. The tail end of the industrial steam extraction to feed pump turbine pipeline P111 is connected to a feed pump turbine, and an industrial steam extraction to feed pump turbine regulating valve V107 is arranged on the industrial steam extraction to feed pump turbine pipeline P111. The auxiliary steam header E106 is connected with an auxiliary steam to water feed pump turbine pipeline P112, the tail end of the auxiliary steam to water feed pump turbine pipeline P112 is connected to an industrial steam extraction to water feed pump turbine pipeline P111 after an industrial steam extraction to water feed pump turbine regulating valve V107, and the auxiliary steam to water feed pump turbine pipeline P112 is provided with an auxiliary steam to water feed pump turbine regulating valve V108.
In the normal operation condition, the auxiliary peak shaving system of the heat supply network as shown in fig. 1 can open the cold re-extraction heat supply regulating valve V102 and adjust the opening thereof to meet the requirement of the first heat supply user, control the steam parameters of the heat supply branch cylinder E105 by opening the industrial extraction heat regulating valve V105 on the industrial extraction pipeline P109 and adjusting the opening thereof, and adjust the steam parameters of the second heat supply user by adjusting the opening of the branch cylinder heat supply regulating valve V109 on the heat supply network pipeline P113. The first heat supply user can be a user needing higher steam parameters, such as a factory needing heat supply, and the second heat supply user can be a user needing family collective heat supply and the like.
In addition, under normal working conditions, in order to meet the normal operation of the auxiliary steam header E106 and the water feeding pump turbine, the industrial steam extraction to the auxiliary steam adjusting valve V106 and the industrial steam extraction to the water feeding pump turbine adjusting valve V107 can be opened and the respective opening degrees can be adjusted so as to adjust steam parameters to meet production requirements.
Under peak regulation working conditions, if the unit load is reduced, the unit steam parameter is reduced, the cold re-steam extraction parameter gradually does not meet the requirement of the first heat supply user any more, and as the superheated steam parameter is relatively higher than the cold re-steam parameter, the high-pressure bypass can be opened to the cold re-heat supply regulating valve V103 and the opening degree of the cold re-heat supply regulating valve V103 can be adjusted so as to improve the cold re-heat supply steam parameter and meet the requirement of the first heat supply user. Meanwhile, the unit load is reduced, so that the thermal re-steam parameter is reduced, the industrial steam extraction steam parameter is also reduced, the heat supply parameter of the heat supply branch cylinder E105 cannot be met, and at the moment, the low-pressure bypass to the branch cylinder heat supply regulating valve V104 can be opened and the opening degree of the branch cylinder heat supply regulating valve V is regulated, so that the steam parameter of the heat supply branch cylinder E105 is stable.
According to the auxiliary peak shaving system of the heat supply network, the high-pressure bypass to the cold and heat supply pipeline and the low-pressure bypass to the air separation pipeline are added, so that the system can meet the requirements of heat supply users by combining superheated steam and hot and heat steam, the load change range under peak shaving working conditions can be enlarged, the steam quantity required by heat supply in the peak shaving process can be ensured, and the peak shaving capacity of the cogeneration unit is improved.
To further describe the heat network assisted peak shaving system, another embodiment of the present application is provided.
Fig. 2 is a block diagram of another auxiliary peak shaving system for a heat supply network according to an embodiment of the present application. As shown in fig. 2, compared with fig. 1 in the above embodiment, the auxiliary peak shaving system for a heat supply network in the embodiment of the present application adds a cold re-to-auxiliary steam pipeline P201, a cold re-to-industrial steam extraction pipeline P202 and a high-pressure bypass to a cold re-heating pipeline P203, and the rest of the connection structures are identical to those in the above embodiment, and are not repeated here.
In some embodiments of the present application, the cold re-steam pipe P102 is connected to a cold re-to-auxiliary steam pipe P201, the end of the cold re-to-auxiliary steam pipe P201 is connected to an auxiliary steam header E106, and the cold re-to-auxiliary steam pipe P201 is provided with a cold re-to-auxiliary steam regulating valve V201.
In addition, the cold re-to-auxiliary steam pipeline P201 before the auxiliary steam regulating valve V201 is connected with the cold re-to-industrial steam extracting pipeline P202, the tail end of the cold re-to-industrial steam extracting pipeline P202 is connected to the industrial steam extracting pipeline P109 after the industrial steam regulating valve V105, and the cold re-to-industrial steam extracting pipeline P202 is provided with the cold re-to-separating steam cylinder regulating valve V202.
In some embodiments of the present application, the high-pressure bypass to cold reheat valve V103 before the high-pressure bypass to cold reheat pipe P104 is connected with the high-pressure bypass to branch cylinder pipe P203, the end of the high-pressure bypass to branch cylinder pipe P203 is connected to the heat supply branch cylinder E105, and the high-pressure bypass to branch cylinder pipe P203 is provided with the high-pressure bypass to branch cylinder valve V203.
Therefore, under the deep peak regulation working condition, the cold re-steam parameter can not meet the use requirement of an industrial steam extraction heat user due to continuous decline of the steam parameter, and the superheated steam is high-quality steam in the thermodynamic cycle process of the unit, so that the opening degree of the high-pressure bypass to the cold re-heating regulating valve V103 can be gradually increased, the cold re-extraction heat regulating valve V102 is closed, and the heat supply pipe of the first heat supply user is switched from the cold re-heating steam extraction pipeline P105 to the high-pressure bypass to the cold re-heating steam extraction pipeline P104 so as to meet the heat supply parameter of the first heat supply user. Under the deep peak regulation working condition, as the hot re-steam parameters entering the medium pressure cylinder E102 are reduced, the steam extraction parameters of the industrial steam extraction pipeline are reduced, and the hot re-steam and the industrial steam extraction cannot be used for meeting the steam parameters when the heat supply sub-cylinder E105, the auxiliary steam header E106 and the water supply pump steam turbine normally operate, so that the opening degree of the low-pressure bypass to the sub-cylinder heat supply regulating valve V104 can be increased at the initial stage of deep peak regulation, then the cold re-steam is started to the auxiliary steam regulating valve V201 and the cold re-steam to the sub-cylinder regulating valve V202, and the opening degree of the auxiliary steam header E106 and the heat supply sub-cylinder E105 are compensated by utilizing the cold re-steam which is higher than the industrial steam extraction parameters and is caused by the reduction of the industrial steam extraction parameters. Meanwhile, in order to ensure the normal operation of the water feeding pump turbine, the auxiliary steam is started to the water feeding pump turbine valve regulating V108, and the auxiliary steam is utilized to meet the normal operation of the water feeding pump turbine.
In order to further achieve the purpose of deep peak regulation, the heat storage function of the heat supply branch cylinder E105 is utilized, the high-pressure bypass is opened to the branch cylinder regulating valve V203, superheated steam is conveyed to the heat supply branch cylinder E105, the air inflow entering the high-pressure cylinder E101 is further reduced, and the steam parameters of the heat supply branch cylinder E105 can be improved, so that the effect of deep peak regulation is achieved.
According to the heat supply network auxiliary peak shaving system provided by the embodiment of the application, reasonable gradient utilization of unit steam is realized by adding the cold re-auxiliary steam pipeline, the cold re-industrial steam extraction pipeline and the high-pressure bypass to the cold re-heating pipeline, and meanwhile, the system can have a deep peak shaving function, so that the peak shaving capacity of the cogeneration unit is further improved while the steam quantity required by heat supply in the peak shaving process is ensured.
In order to achieve the above embodiment, the present application provides a heat supply network auxiliary peak shaving method.
Fig. 3 is a flowchart of a method for peak shaving assisted by a heat supply network according to an embodiment of the present application. It should be noted that, the heat supply network auxiliary peak shaving method of the embodiment of the present application is applied to the heat supply network auxiliary peak shaving system of the above embodiment. As shown in fig. 3, the method may include:
step 301, under the normal operation condition, the cold re-extraction heat supply regulating valve is opened and the opening degree thereof is adjusted to meet the requirement of the first heat supply user, and the industrial extraction regulating valve on the industrial extraction pipeline is opened and the opening degree thereof is adjusted to control the steam parameters of the heat supply split cylinder.
That is, under normal operating conditions, the requirements of the first heat-supplying user can be met by the exhaust steam of the high-pressure cylinder, and the requirements of the second heat-consuming user can be met by the industrial extraction steam of the medium-pressure cylinder.
The auxiliary peak shaving system of the heat supply network as shown in fig. 1 can adjust the steam quantity of the cold re-steam by opening the cold re-steam extraction heat supply regulating valve V102 and adjusting the opening degree of the cold re-steam extraction heat supply regulating valve V so as to control the heat supply parameter to meet the requirement of a first heat supply user. The steam quantity of the industrial steam extraction is controlled by opening the industrial steam extraction regulating valve V105 on the industrial steam extraction pipeline P109 and regulating the opening degree of the industrial steam extraction regulating valve V so as to control the steam parameters of the heat supply branch steam cylinder E105. The steam parameters of the second heat supply user are adjusted by adjusting the opening of the branch cylinder heat supply regulating valve V109 on the heat supply network pipeline P113.
Step 302, under peak load regulation working condition, if the unit load is reduced, opening the high-pressure bypass to the cold-reheating regulating valve and adjusting the opening of the cold-reheating regulating valve to meet the requirement of a first heat supply user, and opening the low-pressure bypass to the branch cylinder heat supply regulating valve and adjusting the opening of the low-pressure bypass to control the steam parameters of the heat supply branch cylinder. Under the normal operation condition, the industrial steam extraction to the auxiliary steam regulating valve and the industrial steam extraction to the water feeding pump turbine regulating valve are opened, and the respective opening degrees are respectively regulated to regulate steam parameters.
In some embodiments of the present application, under peak shaving conditions, if the unit load decreases, the unit steam parameter decreases, the cold re-extraction parameter gradually no longer meets the needs of the first heat supply user, and the superheated steam parameter is relatively higher, so that the needs of the first heat supply user can be met by combining the superheated steam. The auxiliary peak shaving system of the heat supply network shown in fig. 1 can open the high-pressure bypass to the cold reheating heat regulating valve V103 and adjust the opening of the cold reheating heat regulating valve V to improve the cold reheating heat steam parameters so as to meet the requirements of the first heat supply user. Meanwhile, as the unit load is reduced, the thermal re-steam parameter is reduced, so that the industrial steam extraction steam parameter is reduced, and thus, the industrial steam extraction steam cannot meet the heat supply parameters of the heat supply split cylinders, namely, the requirements of a second heat supply user cannot be met. In this case, the industrial steam extraction and the hot re-steam can be combined to meet the requirement of the second heat supply user, as shown in fig. 1, the low-pressure bypass can be opened to the branch cylinder heat supply regulating valve V104 and the opening degree thereof can be adjusted to ensure the stability of the steam parameters of the heat supply branch cylinder E105, and the steam parameters of the second heat supply user can be met by adjusting the opening degree of the branch cylinder heat supply regulating valve V109.
In other embodiments of the present application, to meet the normal operation of the auxiliary header and feedwater pump turbine, the method may further include:
step 303, under the normal operation condition, opening the industrial steam extraction to the auxiliary steam regulating valve and the industrial steam extraction to the water feeding pump steam turbine regulating valve, and respectively adjusting the respective opening degrees to adjust the steam parameters.
That is, the steam requirements of the auxiliary steam header and the feedwater pump turbine may be satisfied by the industrial extraction steam. The auxiliary peak regulation system of the heat supply network shown in fig. 1 can start the industrial steam extraction to the auxiliary steam regulating valve V106 and adjust the opening degree thereof to control the steam parameters of the auxiliary steam header E106 so as to enable the auxiliary steam header E to work normally. And opening the industrial steam extraction to the water feeding pump turbine regulating valve V107 and adjusting the opening degree to control the steam parameters of the water feeding pump turbine so as to enable the water feeding pump turbine to work normally.
According to the auxiliary peak shaving method of the heat supply network, under the peak shaving working condition, the high-pressure bypass is opened to the cold reheating heat supply regulating valve and the low-pressure bypass is opened to the branch cylinder heat supply regulating valve, so that the requirements of heat supply users can be met by combining superheated steam and hot reheating steam, the load variation range under the peak shaving working condition can be enlarged, and the steam quantity required by heat supply in the peak shaving process can be ensured.
In order to further improve the peak shaving capacity of the cogeneration unit, another embodiment is provided by the application.
Fig. 4 is a flowchart of another auxiliary peak shaving method for a heat supply network according to an embodiment of the present application. As shown in fig. 4, the method may be used in a heat supply network assisted peak shaving system as shown in fig. 2, and the method may include the following steps:
step 401, under normal operation condition, opening the cold re-extraction heat supply regulating valve and adjusting the opening degree thereof to meet the requirement of a first heat supply user, and opening the industrial extraction regulating valve on the industrial extraction pipeline and adjusting the opening degree thereof to control the steam parameters of the heat supply split cylinder.
Step 402, under peak load regulation working condition, if the unit load is reduced, opening the high-pressure bypass to the cold-reheating regulating valve and adjusting the opening of the cold-reheating regulating valve to meet the requirement of a first heat supply user, and opening the low-pressure bypass to the branch cylinder heat supply regulating valve and adjusting the opening of the low-pressure bypass to control the steam parameters of the heat supply branch cylinder. Under the normal operation condition, the industrial steam extraction to the auxiliary steam regulating valve and the industrial steam extraction to the water feeding pump turbine regulating valve are opened, and the respective opening degrees are respectively regulated to regulate steam parameters.
Step 403, under normal operation condition, opening the industrial steam extraction to the auxiliary steam adjusting valve and the industrial steam extraction to the water feeding pump turbine adjusting valve, and respectively adjusting the respective opening degrees to adjust steam parameters.
And step 404, closing the cold re-extraction heat supply regulating valve under the deep peak regulation working condition, and increasing the opening degree of the high-pressure bypass to the cold re-extraction heat supply regulating valve so as to meet the requirement of a first heat supply user.
It will be appreciated that under deep peak shaving conditions, the cold re-steam parameters cannot meet the usage demand of the first heat supply user due to the continuous decline of the steam parameters, whereas the superheated steam is the highest quality steam during the thermodynamic cycle of the unit, and therefore can meet the demand of the first heat supply user.
The auxiliary peak shaving system of the heat supply network as shown in fig. 2 can gradually increase the opening of the high-pressure bypass to the cold re-heating regulating valve V103, close the cold re-extraction heating regulating valve V102, and switch the heating pipeline of the first heating user from the cold re-heating steam extraction pipeline P105 to the high-pressure bypass to the cold re-heating steam extraction pipeline P104, so as to meet the heating requirement of the first heating user.
Step 405, increasing the opening of the low-pressure bypass to the branch cylinder heat supply regulating valve, opening the cold air supply regulating valve to the auxiliary steam regulating valve and adjusting the opening of the cold air supply regulating valve so as to meet the steam parameters of the heat supply branch cylinder and the auxiliary steam header.
It can be understood that under the deep peak-shaving working condition, the thermal re-steam parameter entering the medium pressure cylinder is reduced, so that the steam extraction parameter of the industrial steam extraction pipeline is reduced, and therefore, the steam parameters of the heat supply split cylinder, the auxiliary steam header and the water supply pump steam turbine during normal operation cannot be met by utilizing the thermal re-steam and the industrial steam extraction steam.
In the initial stage of deep peak shaving, the auxiliary peak shaving system of the heat supply network as shown in fig. 2 can gradually increase the opening of the low-pressure bypass to the heat supply regulating valve V104 of the branch cylinder so as to control the steam parameters of the heat supply branch cylinder. Then, the cold re-steam regulating valve V201 is opened, and the cold re-steam higher than the industrial steam extraction steam parameter is utilized to compensate the parameter reduction of the auxiliary steam header E106 caused by the industrial steam parameter reduction.
Step 406, opening the auxiliary steam to the valve of the feed pump turbine and adjusting the opening of the valve to enable the feed pump turbine to work normally.
As shown in fig. 2, in order to ensure the normal operation of the feedwater pump turbine, the auxiliary steam may be opened to the feedwater pump turbine valve V108 and the opening thereof may be adjusted so as to satisfy the normal operation of the feedwater pump turbine using the auxiliary steam.
In other embodiments of the present application, to meet the steam parameters of the heat providing split cylinders, the method may further include, during deep peak shaving conditions:
step 407, opening the valve to the branch cylinder and adjusting the opening degree of the valve to control the steam parameters of the heat supply branch cylinder.
Since the steam requirements of the heat supply sub-cylinders cannot be met by utilizing hot re-steam and industrial steam extraction with the reduction of the load, the reduction of the parameters of the heat supply sub-cylinders can be compensated by combining cold re-steam with parameters higher than those of the industrial steam extraction. As shown in fig. 2, the cool re-to-branch cylinder tuning valve V202 may be opened and its opening may be adjusted to control the steam parameters of the heating branch cylinder E105 in combination with cool re-steam, and meet the steam parameters of the second heating user by adjusting the opening of the branch cylinder heating tuning valve V109.
In order to further enhance the effect of depth peaking, the method may further include:
and step 408, opening the high-pressure bypass to the branch cylinder valve and adjusting the opening degree of the valve to reduce the steam inlet quantity of the high-pressure cylinder.
Because the heat supply air separation cylinder has the heat storage function, in order to achieve the purpose of deep peak shaving, the steam quantity of the superheated steam entering the high-pressure cylinder can be reduced, and the heat storage is realized through the heat supply air separation cylinder.
In the heat supply network auxiliary peak regulation system shown in fig. 2, under the deep peak regulation working condition, the high-pressure bypass can be opened to the branch cylinder regulating valve V203 and the opening degree thereof can be adjusted, so that the steam inlet amount of the high-pressure cylinder E101 is reduced, the steam amount of the superheated steam entering the heat supply branch cylinder E105 is increased, the generated energy of the high-pressure cylinder E101 can be reduced, the steam parameters of the heat supply branch cylinder E105 can be met, and meanwhile, the heat can be stored through the heat supply branch cylinder E105, so that the effect of deep peak regulation is achieved.
According to the auxiliary peak shaving method of the heat supply network, under the deep peak shaving working condition, the opening degree of the high-pressure bypass to the cold and heat supply regulating valve is increased, the opening degree of the low-pressure bypass to the heat supply regulating valve of the branch cylinder is increased, the cold and heat supply regulating valve is opened, the cold sub-cylinder regulating valve is opened, the cold and heat supply user requirements are met by combining cold and heat supply, and meanwhile, the auxiliary steam header and the water supply pump steam turbine work normally. In addition, the heat storage function of the heat supply branch cylinder is utilized to open and adjust the opening degree of the high-pressure bypass to the branch cylinder valve so as to reduce the air inflow of the high-pressure cylinder, thereby achieving the effect of deep peak regulation.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. The utility model provides an auxiliary peak shaving system of heat supply network, includes high pressure cylinder, middling pressure cylinder, low pressure cylinder, condenser, heat supply branch cylinder and assists the vapour header, its characterized in that, wherein:
the inlet end of the high-pressure cylinder is connected with a superheated steam pipeline, and the steam exhaust end of the high-pressure cylinder is connected with a cold re-steam pipeline; the cold re-steam pipeline is connected with a cold re-heat supply steam extraction pipeline, a cold re-steam extraction heat supply regulating valve is arranged on the cold re-heat supply steam extraction pipeline, and the tail end of the cold re-heat supply steam extraction pipeline is connected to a first heat supply user;
the high-pressure bypass pipeline is connected with a high-pressure bypass to cold reheating pipeline in front of a high-pressure bypass valve, the tail end of the high-pressure bypass to cold reheating pipeline is connected to a cold reheating steam extraction pipeline behind the cold reheating steam heating regulating valve, the high-pressure bypass to cold reheating steam heating regulating valve is arranged on the high-pressure bypass to cold reheating pipeline, the high-pressure bypass to cold reheating pipeline before the high-pressure bypass to cold reheating steam heating regulating valve is connected with a high-pressure bypass to branch cylinder pipeline, the tail end of the high-pressure bypass to branch cylinder pipeline is connected to the heat supply branch cylinder, and the high-pressure bypass to branch cylinder pipeline is provided with a high-pressure bypass to branch cylinder regulating valve;
the inlet end of the medium pressure cylinder is connected with a hot re-steam pipeline, the steam extraction port of the medium pressure cylinder is connected with an industrial steam extraction pipeline, and the tail end of the industrial steam extraction pipeline is connected with the heat supply branch cylinder; an industrial steam extraction adjusting valve is arranged on the industrial steam extraction pipeline;
the low-pressure bypass pipeline is connected with a low-pressure bypass to branch cylinder pipeline, the tail end of the low-pressure bypass to branch cylinder pipeline is connected to the heat supply branch cylinder, and a low-pressure bypass to branch cylinder heat supply regulating valve is arranged on the low-pressure bypass to branch cylinder pipeline; the heat supply branch cylinder is connected with a heat supply network pipeline, the tail end of the heat supply network pipeline is connected to a second heat supply user, and a branch cylinder heat supply regulating valve is arranged on the heat supply network pipeline.
2. The system of claim 1, wherein an industrial steam extraction to auxiliary steam pipeline and an industrial steam extraction to feed pump turbine pipeline are both connected with an industrial steam extraction pipeline before the industrial steam extraction valve, the tail end of the industrial steam extraction to auxiliary steam pipeline is connected to the auxiliary steam header, and the industrial steam extraction to auxiliary steam pipeline is provided with an industrial steam extraction to auxiliary steam valve; the tail end of the industrial steam extraction to water feed pump turbine pipeline is connected to a water feed pump turbine, and an industrial steam extraction to water feed pump turbine regulating valve is arranged on the industrial steam extraction to water feed pump turbine pipeline; the auxiliary steam header is connected with an auxiliary steam to water feed pump turbine pipeline, the tail end of the auxiliary steam to water feed pump turbine pipeline is connected to the industrial steam to water feed pump turbine pipeline after the industrial steam is extracted to water feed pump turbine valve adjusting, and the auxiliary steam to water feed pump turbine pipeline is provided with the auxiliary steam to water feed pump turbine valve adjusting.
3. The system of claim 2, wherein the cold re-steam pipe is connected with a cold re-to-auxiliary steam pipe, an end of the cold re-to-auxiliary steam pipe is connected to the auxiliary steam header, and a cold re-to-auxiliary steam valve is installed on the cold re-to-auxiliary steam pipe.
4. A system according to claim 3, wherein the cold-to-auxiliary steam line before the cold-to-auxiliary steam valve is connected with a cold-to-industrial steam extraction line, the end of the cold-to-industrial steam extraction line is connected to the industrial steam extraction line after the industrial steam valve, and the cold-to-industrial steam extraction line is provided with a cold-to-steam separation cylinder valve.
5. A method for peak shaving assisted by a heat supply network, wherein the method is applied to the system of claim 4, and comprises the steps of:
under normal operation conditions, the cold re-extraction heat supply regulating valve is opened and the opening degree thereof is adjusted to meet the requirements of the first heat supply user, and the industrial extraction regulating valve on the industrial extraction pipeline is opened and the opening degree thereof is adjusted to control the steam parameters of the heat supply sub-cylinder;
under peak regulation working conditions, if the load of the unit is reduced, the high-pressure bypass is opened to the cold-and-heat-supply regulating valve and the opening of the valve is regulated so as to meet the requirements of the first heat supply user, and the low-pressure bypass is opened to the heat-supply regulating valve of the branch cylinder and the opening of the valve is regulated so as to control the steam parameters of the heat-supply branch cylinder.
6. The method as recited in claim 5, further comprising:
under the normal operation condition, the industrial steam extraction to the auxiliary steam regulating valve and the industrial steam extraction to the water feeding pump turbine regulating valve are opened, and the respective opening degrees are respectively regulated to regulate steam parameters.
7. The method as recited in claim 6, further comprising:
under the deep peak regulation working condition, closing the cold re-extraction heat supply regulating valve, and increasing the opening of the high-pressure bypass to the cold re-extraction heat supply regulating valve to meet the requirements of the first heat supply user;
increasing the opening of the low-pressure bypass to the heat supply regulating valve of the branch cylinder, opening the cold air supply regulating valve to the auxiliary steam regulating valve and regulating the opening of the cold air supply regulating valve to meet the steam parameters of the heat supply branch cylinder and the auxiliary steam header;
and opening the auxiliary steam to the water feeding pump turbine to adjust the valve and adjust the opening of the valve so as to enable the water feeding pump turbine to work normally.
8. The method as recited in claim 7, further comprising:
and under the deep peak regulation working condition, opening the valve regulating valve from the cold to the branch cylinder and adjusting the opening degree of the valve regulating valve to control the steam parameters of the heat supply branch cylinder.
9. The method as recited in claim 8, further comprising:
and under the deep peak regulation working condition, opening a high-pressure bypass to the valve regulating valve of the branch cylinder and adjusting the opening of the valve regulating valve so as to reduce the steam inlet quantity of the high-pressure cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210802090.0A CN115217560B (en) | 2022-07-08 | 2022-07-08 | Auxiliary peak shaving system and method for heat supply network |
| PCT/CN2022/139779 WO2024007539A1 (en) | 2022-07-08 | 2022-12-16 | Heat supply network auxiliary peak regulation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210802090.0A CN115217560B (en) | 2022-07-08 | 2022-07-08 | Auxiliary peak shaving system and method for heat supply network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115217560A CN115217560A (en) | 2022-10-21 |
| CN115217560B true CN115217560B (en) | 2023-10-20 |
Family
ID=83610597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210802090.0A Active CN115217560B (en) | 2022-07-08 | 2022-07-08 | Auxiliary peak shaving system and method for heat supply network |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115217560B (en) |
| WO (1) | WO2024007539A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217560B (en) * | 2022-07-08 | 2023-10-20 | 西安热工研究院有限公司 | Auxiliary peak shaving system and method for heat supply network |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995033127A1 (en) * | 1994-06-01 | 1995-12-07 | Masnoi, Sergei Sergeevich | Method of using a steam turbine facility and a steam turbine facility for implementing said method |
| RU2238414C1 (en) * | 2003-03-31 | 2004-10-20 | Безлепкин Виктор Павлович | Method for regulating electric power of combined-cycle heating unit incorporating exhaust-heat boiler |
| CN104775860A (en) * | 2015-04-09 | 2015-07-15 | 中国东方电气集团有限公司 | System for improving reliability of heat supply network of subcritical coal-fired unit |
| CN106194297A (en) * | 2016-09-27 | 2016-12-07 | 上海电气电站设备有限公司 | The double branch road heating system of a kind of cogeneration turbine |
| CN206668346U (en) * | 2017-06-21 | 2017-11-24 | 沈阳奥瑞驰电力科技有限公司 | The system that the high other and reheating heat of boiler promotes peak load regulation flexibility |
| CN108868921A (en) * | 2018-07-12 | 2018-11-23 | 广西电网有限责任公司电力科学研究院 | A kind of large size pure condensed steam formula Turbo-generator Set heating system and heat supply method |
| CN208518719U (en) * | 2018-07-12 | 2019-02-19 | 广西电网有限责任公司电力科学研究院 | A kind of large size pure condensed steam formula Turbo-generator Set heating system |
| CN109578095A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of steam power plant's primary frequency control system |
| CN109653811A (en) * | 2018-10-12 | 2019-04-19 | 大唐东北电力试验研究院有限公司 | Cogeneration units are using the control method for bypassing heat-supplying mode depth peak regulation |
| CN109798157A (en) * | 2019-02-02 | 2019-05-24 | 华电电力科学研究院有限公司 | A kind of solidifying pumping back coupling steam extraction integrated system and its operation method for thermoelectricity unit power peak regulation |
| CN209129695U (en) * | 2018-11-14 | 2019-07-19 | 普瑞森能源科技（北京）股份有限公司 | Industrial steam supply system for peak load regulation operating condition |
| CN112780363A (en) * | 2021-02-03 | 2021-05-11 | 西安热工研究院有限公司 | Underwater compressed air energy storage and peak regulation system and method driven by backpressure small steam turbine |
| CN113153450A (en) * | 2021-05-18 | 2021-07-23 | 京能(赤峰)能源发展有限公司 | Cogeneration system and method |
| CN214303958U (en) * | 2021-02-03 | 2021-09-28 | 西安热工研究院有限公司 | Underwater compressed air energy storage and peak regulation system driven by backpressure small steam turbine |
| CN214405999U (en) * | 2021-01-23 | 2021-10-15 | 中国华能集团有限公司 | Multisource industry supplies vapour switched systems based on coal consumption cost is minimum |
| CN114046186A (en) * | 2021-11-15 | 2022-02-15 | 西安西热节能技术有限公司 | High-flexibility high-thermoelectric-ratio composite thermal mass bypass heating system |
| CN114165775A (en) * | 2021-09-23 | 2022-03-11 | 北京亿同享科技有限公司 | System for be used for power plant thermodynamic system steam parameter reconsitution |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060917A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using unit bypass heat supply |
| CN112856363B (en) * | 2021-01-14 | 2021-10-22 | 浙江大学 | System and method for improving heat supply steam parameters of deep peak shaving heat supply unit |
| CN114542219B (en) * | 2022-01-27 | 2023-09-22 | 上海电力大学 | System for heat supply generating set low pressure bypass heat accumulation peak shaving |
| CN115217560B (en) * | 2022-07-08 | 2023-10-20 | 西安热工研究院有限公司 | Auxiliary peak shaving system and method for heat supply network |
-
2022
- 2022-07-08 CN CN202210802090.0A patent/CN115217560B/en active Active
- 2022-12-16 WO PCT/CN2022/139779 patent/WO2024007539A1/en unknown
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995033127A1 (en) * | 1994-06-01 | 1995-12-07 | Masnoi, Sergei Sergeevich | Method of using a steam turbine facility and a steam turbine facility for implementing said method |
| RU2238414C1 (en) * | 2003-03-31 | 2004-10-20 | Безлепкин Виктор Павлович | Method for regulating electric power of combined-cycle heating unit incorporating exhaust-heat boiler |
| CN104775860A (en) * | 2015-04-09 | 2015-07-15 | 中国东方电气集团有限公司 | System for improving reliability of heat supply network of subcritical coal-fired unit |
| CN106194297A (en) * | 2016-09-27 | 2016-12-07 | 上海电气电站设备有限公司 | The double branch road heating system of a kind of cogeneration turbine |
| CN206668346U (en) * | 2017-06-21 | 2017-11-24 | 沈阳奥瑞驰电力科技有限公司 | The system that the high other and reheating heat of boiler promotes peak load regulation flexibility |
| CN108868921A (en) * | 2018-07-12 | 2018-11-23 | 广西电网有限责任公司电力科学研究院 | A kind of large size pure condensed steam formula Turbo-generator Set heating system and heat supply method |
| CN208518719U (en) * | 2018-07-12 | 2019-02-19 | 广西电网有限责任公司电力科学研究院 | A kind of large size pure condensed steam formula Turbo-generator Set heating system |
| CN109578095A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of steam power plant's primary frequency control system |
| CN109653811A (en) * | 2018-10-12 | 2019-04-19 | 大唐东北电力试验研究院有限公司 | Cogeneration units are using the control method for bypassing heat-supplying mode depth peak regulation |
| CN209129695U (en) * | 2018-11-14 | 2019-07-19 | 普瑞森能源科技（北京）股份有限公司 | Industrial steam supply system for peak load regulation operating condition |
| CN109798157A (en) * | 2019-02-02 | 2019-05-24 | 华电电力科学研究院有限公司 | A kind of solidifying pumping back coupling steam extraction integrated system and its operation method for thermoelectricity unit power peak regulation |
| CN214405999U (en) * | 2021-01-23 | 2021-10-15 | 中国华能集团有限公司 | Multisource industry supplies vapour switched systems based on coal consumption cost is minimum |
| CN112780363A (en) * | 2021-02-03 | 2021-05-11 | 西安热工研究院有限公司 | Underwater compressed air energy storage and peak regulation system and method driven by backpressure small steam turbine |
| CN214303958U (en) * | 2021-02-03 | 2021-09-28 | 西安热工研究院有限公司 | Underwater compressed air energy storage and peak regulation system driven by backpressure small steam turbine |
| CN113153450A (en) * | 2021-05-18 | 2021-07-23 | 京能(赤峰)能源发展有限公司 | Cogeneration system and method |
| CN114165775A (en) * | 2021-09-23 | 2022-03-11 | 北京亿同享科技有限公司 | System for be used for power plant thermodynamic system steam parameter reconsitution |
| CN114046186A (en) * | 2021-11-15 | 2022-02-15 | 西安西热节能技术有限公司 | High-flexibility high-thermoelectric-ratio composite thermal mass bypass heating system |
Non-Patent Citations (1)
| Title |
|---|
| 纯凝汽轮机发电机组的供热改造经济性分析及方案讨论;童术;;轻工科技(12);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024007539A1 (en) | 2024-01-11 |
| CN115217560A (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864994B (en) | Correction method for optimization of sliding pressure of large steam turbine | |
| CN110608072A (en) | Thermodynamic system for quick load response of heat supply unit and regulation and control method | |
| CN115217560B (en) | Auxiliary peak shaving system and method for heat supply network | |
| Barelli et al. | Supercharged gas turbine combined cycle: An improvement in plant flexibility and efficiency | |
| CA2843524C (en) | Method for starting-up and operating a combined-cycle power plant | |
| CA2843446C (en) | Method for operating a combined-cycle power plant | |
| CN104088703A (en) | Compressed air energy storage-combined cycle integration system of intercooled preheating steam turbine | |
| CN107664045B (en) | High-temperature gas cooled reactor steam turbine gland seal steam supply system and method | |
| CN109869784B (en) | Combined cycle device for steam extraction integration and heat accumulation peak shaving coupling and operation method thereof | |
| CN110701663A (en) | Injection type heat pump exhaust steam recovery heat supply mode and system based on complete thermoelectric decoupling | |
| CN111042881A (en) | Wide-load high-efficiency steam turbine generator unit with part of cylinders capable of being cut off | |
| US20140239638A1 (en) | Method for providing a frequency response for a combined cycle power plant | |
| CN110656991A (en) | Injection gas distribution thermoelectric decoupling mode based on axial thrust balance and reheating balance | |
| CN109027685A (en) | The industrial steam-supplying system and method for big flow high parameter are realized using vapour compression machine | |
| CN108301882B (en) | Three-stage series-parallel bypass system of generator set and adjusting method thereof | |
| CN113638776B (en) | Steam extraction back pressure type steam turbine thermodynamic system and control method thereof | |
| CN112833378B (en) | Reheating system capable of improving heat supply capacity | |
| CN116816499A (en) | Distributed energy power generation system and control method thereof | |
| CN218816563U (en) | System for steam turbine heat supply under degree of depth peak regulation | |
| CN114991893B (en) | Front-end turbine system for deep peak shaving and operation method | |
| CN108757163B (en) | Waste heat utilization device of turbine composite internal combustion engine and control method thereof | |
| CN111507011A (en) | Method for correcting influence quantity of heat supply extraction steam on sliding pressure operation of steam turbine | |
| CN115898573B (en) | System for supplying heat to steam turbine under deep peak shaving and working method thereof | |
| JP2020133581A (en) | Combined cycle power generation plant and operation method therefor | |
| CN115324661B (en) | System for separating shaft and cutting high-pressure cylinder of steam turbine of thermal power plant and operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |