CN114562344A - Multi-furnace multi-machine main pipe reheating power generation system and method suitable for garbage power generation industry - Google Patents
Multi-furnace multi-machine main pipe reheating power generation system and method suitable for garbage power generation industry Download PDFInfo
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- CN114562344A CN114562344A CN202210214575.8A CN202210214575A CN114562344A CN 114562344 A CN114562344 A CN 114562344A CN 202210214575 A CN202210214575 A CN 202210214575A CN 114562344 A CN114562344 A CN 114562344A
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D13/00—Combinations of two or more machines or engines
- F01D13/02—Working-fluid interconnection of machines or engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- 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
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- 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
- F01K13/006—Auxiliaries or details not otherwise provided for
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- 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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The invention relates to a multi-furnace multi-machine main pipe reheating power generation system and a method suitable for the garbage power generation industry, wherein the multi-furnace multi-machine main pipe reheating power generation system comprises: the system comprises at least three boilers, at least two steam turbines, a main steam main pipe, a reheating cold-end steam main pipe, a reheater outlet steam main pipe and a reheating hot-end steam main pipe; the main steam pipeline of each boiler enters a main steam main pipe and then respectively enters each steam turbine, and the exhaust steam of a high-pressure cylinder of each steam turbine is collected to a reheating cold-end steam main pipe and enters a reheater of each boiler; the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe and enters a condenser of each turbine, or is merged into a reheated hot end steam main pipe and enters an intermediate pressure cylinder of each turbine; the invention can ensure that any boiler and any steam turbine can be shut down as required without influencing the operation during the operation, thereby not only improving the flexibility and the safety of the unit operation, but also ensuring that the field environment is not influenced.
Description
Technical Field
The invention belongs to the technical field of power generation equipment, and particularly relates to a multi-furnace multi-machine main pipe reheating power generation system and method suitable for the garbage power generation industry.
Background
Along with the increasing of the urbanization rate of China and the concern of people on living environment, the market competition of the waste incineration power generation industry is fierce, the waste treatment cost is lower and lower, and meanwhile, the environmental emission index is stricter and stricter, so that the operation cost is higher and higher, and the profit margin is narrower and narrower. At present, the heat efficiency of the whole plant of the domestic conventional garbage power generation project is about 21 percent. The reheating technology of a two-furnace one-machine main pipe is adopted in the industry, the heat efficiency of the whole plant reaches 28.69%, and the amount of power generated by one ton of garbage in the furnace reaches 595 kW.h/t.
However, the main control reheating unit in the current garbage power generation industry is configured by two furnaces and one machine, and has the following problems: during the turbine shutdown, both boilers are forced to shut down. During the period that the steam turbine is stopped, because the boiler can not run, the odor of the garbage bin overflows, and the surrounding environment is influenced. The operation mode of the turbine is single, and the turbine cannot be independently shut down for maintenance.
Therefore, it is desirable to develop a new system and method for reheating power generation with multiple furnaces and multiple main pipes in the garbage power industry to solve the above problems.
Disclosure of Invention
The invention aims to provide a multi-furnace multi-machine main pipe reheating power generation system and a multi-furnace multi-machine main pipe reheating power generation method which are suitable for the garbage power generation industry.
In order to solve the technical problem, the invention provides a multi-furnace multi-machine main pipe reheating power generation system suitable for the garbage power generation industry, which comprises: the system comprises at least three boilers, at least two steam turbines, a main steam main pipe, a reheating cold end steam main pipe, a reheater outlet steam main pipe and a reheating hot end steam main pipe; the main steam pipeline of each boiler enters a main steam main pipe and then respectively enters each steam turbine, and the high-pressure cylinder exhaust steam of each steam turbine is collected to a reheating cold-end steam main pipe and enters a reheater of each boiler; and the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe and enters a condenser of each turbine, or the reheater outlet steam of each boiler is merged into a reheated hot end steam main pipe and enters an intermediate pressure cylinder of each turbine.
In one embodiment, the main reheat cold-end steam pipe is connected with the reheaters of the boilers through corresponding sub reheat cold-end steam pipes, and each sub reheat cold-end steam pipe is provided with a steam distribution valve, that is, the high-pressure cylinder exhaust steam generated by each steam turbine is collected through the main reheat cold-end steam pipe and then distributed through the corresponding steam distribution valve to enter the reheater of the corresponding boiler.
In one embodiment, the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe through a corresponding low-pressure bypass valve so as to reduce the temperature and pressure of the reheater outlet steam.
In one embodiment, the reheater outlet steam main pipe is connected to the condensers of the turbines through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is provided with a steam distribution valve, that is, reheater outlet steam collected in the reheater outlet steam main pipe is distributed through the corresponding steam distribution valve and enters the condenser of the corresponding turbine.
In one embodiment, the main reheat hot end steam pipe is connected to the intermediate pressure cylinders of the turbines through corresponding sub reheat hot end steam pipes, and each sub reheat hot end steam pipe is provided with a steam distribution valve, that is, the reheater outlet steam collected in the main reheat hot end steam pipe is distributed through the corresponding steam distribution valve and enters the intermediate pressure cylinders of the corresponding turbines.
On the other hand, the invention provides a multi-furnace multi-machine main pipe reheating power generation method, which comprises the following steps: arranging at least three boilers and at least two turbines; the main steam pipeline of each boiler is merged into a main steam main pipe and then respectively enters each steam turbine, so that the exhaust steam of a high-pressure cylinder of each steam turbine is converged to a reheating cold-end steam main pipe and enters a reheater of each boiler; and collecting the reheater outlet steam of each boiler to a reheater outlet steam main pipe to enter a condenser of each turbine, or merging the reheater outlet steam of each boiler into a reheated hot end steam main pipe to enter an intermediate pressure cylinder of each turbine.
In one embodiment, the main reheat cold-end steam pipe is connected with the reheaters of the boilers through corresponding sub reheat cold-end steam pipes, and each sub reheat cold-end steam pipe is provided with a steam distribution valve, that is, the high-pressure cylinder exhaust steam generated by each steam turbine is collected through the main reheat cold-end steam pipe and then distributed through the corresponding steam distribution valve to enter the reheater of the corresponding boiler.
In one embodiment, the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe through a corresponding low-pressure bypass valve so as to reduce the temperature and pressure of the reheater outlet steam.
In one embodiment, the reheater outlet steam main pipe is connected to the condensers of the turbines through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is provided with a steam distribution valve, that is, reheater outlet steam collected in the reheater outlet steam main pipe is distributed through the corresponding steam distribution valve and enters the condenser of the corresponding turbine.
In one embodiment, the main reheat hot end steam pipe is connected to the intermediate pressure cylinders of the turbines through corresponding sub reheat hot end steam pipes, and each sub reheat hot end steam pipe is provided with a steam distribution valve, that is, the reheater outlet steam collected in the main reheat hot end steam pipe is distributed through the corresponding steam distribution valve and enters the intermediate pressure cylinders of the corresponding turbines.
The multi-boiler multi-machine main pipe reheating power generation system has the advantages that more than three boilers are connected with more than two turbines to form the multi-boiler multi-machine main pipe reheating power generation system, and the multi-boiler multi-machine main pipe reheating power generation system is provided with the main steam main pipe, the reheating cold-end steam main pipe, the reheater outlet steam main pipe and the reheating hot-end steam main pipe, so that any boiler and any turbine can be shut down as required without influencing the operation, the operation flexibility and the safety of a unit are improved on one hand, and the field environment is not influenced on the other hand.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a multi-furnace multi-machine main pipe reheating power generation system applicable to the garbage power industry;
FIG. 2 is a block diagram of the main steam header of the present invention;
FIG. 3 is a block diagram of the reheat cold end steam header of the present invention;
FIG. 4 is a block diagram of the reheater outlet steam header of the present invention;
fig. 5 is a block diagram illustrating the construction of a reheated hot side steam header of the present invention.
In the figure:
the system comprises a boiler 1, a superheater 101, a reheater 102, a steam turbine 2, a high-pressure cylinder 201, a condenser 202, an intermediate pressure cylinder 203, a main steam header 3, a reheat cold-end steam header 4, a reheater outlet steam header 5, a reheat hot-end steam header 6, a steam distribution valve 7, a low-pressure bypass valve 8, a high-pressure bypass valve 9 and a flowmeter 10.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
In this embodiment, as shown in fig. 1 to 5, the present embodiment provides a multi-furnace multi-main reheating power generation system suitable for the garbage power generation industry, which includes: the system comprises at least three boilers 1, at least two steam turbines 2, a main steam main pipe 3, a reheating cold end steam main pipe 4, a reheater outlet steam main pipe 5 and a reheating hot end steam main pipe 6; the main steam pipeline of each boiler 1 enters a main steam main pipe 3 and then respectively enters each steam turbine 2, and the high-pressure cylinder exhaust steam of each steam turbine 2 is collected to a reheating cold-end steam main pipe 4 and enters a reheater 102 of each boiler 1; and the reheater outlet steam of each boiler 1 is collected to the reheater outlet steam header 5 and enters the condenser 202 of each turbine 2, or the reheater outlet steam of each boiler 1 is merged into the reheated hot end steam header 6 and enters the intermediate pressure cylinder 203 of each turbine 2.
In this embodiment, this embodiment forms many stoves multimachine female pipe reheat power generation system through being connected boiler 1 more than three with two steam turbines 2 more than, and be provided with main steam female pipe 3, reheat cold end steam female pipe 4, reheater export steam female pipe 5 and reheat hot end steam female pipe 6 guarantee that arbitrary boiler 1 and arbitrary steam turbine 2 can shut down as required and do not influence the operation during the operation, improved unit operation flexibility and security on the one hand, on the other hand has guaranteed that the site environment is not influenced.
In the present embodiment, the superheater 101 of each of the boilers 1 generates main steam to be output through a corresponding main steam line, respectively.
In this embodiment, the reheating cold-end steam main pipe 4 is connected to the reheater 102 of each boiler 1 through a corresponding reheating cold-end steam sub-pipe, and a steam distribution valve 7 is provided in each reheating cold-end steam sub-pipe, that is, after the high-pressure cylinder exhaust steam generated by each steam turbine 2 is collected by the reheating cold-end steam main pipe 4, the high-pressure cylinder exhaust steam is distributed through the corresponding steam distribution valve 7 and enters the reheater 102 of the corresponding boiler 1.
In the present embodiment, the reheater outlet steam of each of the boilers 1 is collected to the reheater outlet steam header 5 through the corresponding low-pressure bypass valve 8, so as to reduce the temperature and pressure of the reheater outlet steam.
In the present embodiment, the low-pressure bypass valve 8 is provided to ensure that steam can be safely introduced into the condenser 202 of each turbine 2.
In this embodiment, the reheater outlet steam main pipe 5 is connected to the condensers 202 of the turbines 2 through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is provided with a steam distribution valve 7, that is, the reheater outlet steam collected in the reheater outlet steam main pipe 5 is distributed through the corresponding steam distribution valve 7 and enters the condensers 202 of the corresponding turbines 2.
In this embodiment, the main reheat hot end steam pipe 6 is connected to the intermediate pressure cylinders 203 of the steam turbines 2 through corresponding sub reheat hot end steam pipes, and each sub reheat hot end steam pipe is provided with a steam distribution valve 7, that is, the steam at the outlet of the reheater 102 collected in the main reheat hot end steam pipe 6 is distributed through the corresponding steam distribution valve 7 and enters the intermediate pressure cylinders 203 of the corresponding steam turbines 2.
In the present embodiment, a portion of the main steam generated by the superheater 101 of each boiler 1 is pressurized and warmed by the corresponding high-pressure bypass valve 9 and then enters the reheater 102, so as to ensure stable operation of the corresponding reheater 102.
In this embodiment, each pipeline is provided with a flow meter 10 for monitoring the flow rate, so as to prevent the flow rate from being too large to damage the equipment or too low to meet the production requirement.
Principle of operation
The main steam pipelines of at least three boilers 1 are merged into a main steam main pipe 3 and then respectively enter high-pressure cylinders 201 of at least two turbines 2 to do work for power generation, meanwhile, high-pressure cylinder exhaust steam (reheating cold-end steam) of at least two turbines 2 is collected into a reheating cold-end steam main pipe 4 and then enters reheaters 102 of the boilers 1 to be reheated, reheater outlet steam of at least three boilers 1 is provided with two paths for output, namely reheater outlet steam is collected into a reheater outlet steam main pipe 5 and enters condensers 202 of the turbines 2, or reheater outlet steam of each boiler 1 is merged into a reheating hot-end steam main pipe 6 and enters intermediate pressure cylinders 203 of the turbines 2.
In this embodiment, through setting up main steam main pipe 3, reheat cold end steam main pipe 4, the main steam that superheater 101 that each boiler 1 can make full use of produced of reheater export steam main pipe 5 and reheat hot end steam main pipe 6, the reheater export steam that reheater 102 of each boiler 1 produced and the high-pressure cylinder steam extraction that each steam turbine 2 produced, can reduce the waste of heat, can guarantee that arbitrary boiler 1 and arbitrary steam turbine 2 can shut down as required and do not influence the operation during the operation simultaneously, on the one hand, unit operation flexibility and security have been improved, on the other hand has guaranteed that the site environment is not influenced.
Example 2
On the basis of embodiment 1, the present embodiment provides a multi-furnace multi-header reheating power generation method, which includes: arranging at least three boilers 1 and at least two steam turbines 2; the main steam pipeline of each boiler 1 is merged into a main steam main pipe 3 and then respectively enters each steam turbine 2, so that the high-pressure cylinder exhaust steam of each steam turbine 2 is converged to a reheating cold-end steam main pipe 4 and enters a reheater 102 of each boiler 1; the reheater outlet steam of each boiler 1 is collected to the reheater outlet steam header 5 and introduced into the condenser 202 of each turbine 2, or the reheater outlet steam of each boiler 1 is merged into the reheated hot end steam header 6 and introduced into the intermediate pressure cylinder 203 of each turbine 2.
In this embodiment, the reheat cold-end steam main pipe 4 is connected to the reheaters 102 of the boilers 1 through corresponding reheat cold-end steam sub-pipes, and each reheat cold-end steam sub-pipe is provided with a steam distribution valve 7, that is, the high-pressure cylinder exhaust steam generated by each steam turbine 2 is collected by the reheat cold-end steam main pipe 4 and then distributed through the corresponding steam distribution valve 7 to enter the reheaters 102 of the corresponding boilers 1.
In the present embodiment, the reheater outlet steam of each of the boilers 1 is collected to the reheater outlet steam header 5 through the corresponding low-pressure bypass valve 8, so as to reduce the temperature and pressure of the reheater outlet steam.
In this embodiment, the reheater outlet steam main pipe 5 is connected to the condensers 202 of the turbines 2 through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is provided with a steam distribution valve 7, that is, the reheater outlet steam collected in the reheater outlet steam main pipe 5 is distributed through the corresponding steam distribution valve 7 and enters the condensers 202 of the corresponding turbines 2.
In this embodiment, the main reheated hot end steam pipe 6 is connected to the intermediate pressure cylinders 203 of the steam turbines 2 through corresponding sub reheated hot end steam pipes, and each sub reheated hot end steam pipe is provided with a steam distribution valve 7, that is, the reheater outlet steam collected in the main reheated hot end steam pipe 6 is distributed through the corresponding steam distribution valve 7 and enters the intermediate pressure cylinders 203 of the corresponding steam turbines 2.
In summary, the invention forms a multi-furnace multi-machine main pipe reheating power generation system by connecting more than three boilers and more than two turbines, and is provided with a main steam main pipe, a reheating cold-end steam main pipe, a reheater outlet steam main pipe and a reheating hot-end steam main pipe to ensure that any boiler and any turbine can be shut down as required without influencing the operation during the operation, thereby improving the flexibility and safety of the unit operation on one hand, and ensuring that the field environment is not influenced on the other hand.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a female pipe reheat power generation system of multi-furnace multimachine suitable for rubbish electricity generation trade which characterized in that includes:
the system comprises at least three boilers, at least two steam turbines, a main steam main pipe, a reheating cold-end steam main pipe, a reheater outlet steam main pipe and a reheating hot-end steam main pipe; wherein
The main steam pipeline of each boiler enters a main steam main pipe and then respectively enters each steam turbine, and the high-pressure cylinder exhaust steam of each steam turbine is collected to a reheating cold-end steam main pipe and enters a reheater of each boiler; and
the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe and enters a condenser of each turbine, or
And the reheater outlet steam of each boiler is merged into a reheated hot end steam main pipe and enters an intermediate pressure cylinder of each steam turbine.
2. The multi-furnace multi-machine header reheat power generation system for the refuse-based power generation industry of claim 1,
the reheating cold-end steam main pipe is respectively connected with a reheater of each boiler through a corresponding reheating cold-end steam sub-pipe, and a steam distribution valve is respectively arranged in each reheating cold-end steam sub-pipe, namely
And after the high-pressure cylinder exhaust steam generated by each steam turbine is collected by a reheating cold-end steam main pipe, the high-pressure cylinder exhaust steam is distributed by corresponding steam distribution valves and respectively enters a reheater of a corresponding boiler.
3. The multi-furnace multi-machine main pipe reheating power generation system suitable for the garbage power industry as claimed in claim 1,
and the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe through a corresponding low-pressure bypass valve respectively so as to reduce the temperature and the pressure of the reheater outlet steam.
4. The multi-furnace multi-machine main pipe reheating power generation system suitable for the garbage power industry as claimed in claim 3,
the reheater outlet steam main pipe is respectively connected with the condensers of the turbines through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is respectively provided with a steam distribution valve, namely
And the reheater outlet steam collected in the reheater outlet steam main pipe is distributed by corresponding steam distribution valves and respectively enters the condensers of the corresponding turbines.
5. The multi-furnace multi-machine main pipe reheating power generation system suitable for the garbage power industry as claimed in claim 1,
the main reheated hot end steam pipe is connected with the intermediate pressure cylinder of each steam turbine through the corresponding reheated hot end steam sub-pipe, and a steam distribution valve is arranged in each reheated hot end steam sub-pipe, namely
And the reheater outlet steam collected in the reheated hot end steam main pipe is distributed by corresponding steam distribution valves and respectively enters the intermediate pressure cylinders of the corresponding steam turbines.
6. A multi-furnace multi-machine main pipe reheating power generation method is characterized by comprising the following steps:
arranging at least three boilers and at least two turbines;
the main steam pipeline of each boiler is merged into a main steam main pipe and then respectively enters each steam turbine, so that the exhaust steam of a high-pressure cylinder of each steam turbine is converged to a reheating cold-end steam main pipe and enters a reheater of each boiler;
the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe and enters a condenser of each turbine, or
And merging reheater outlet steam of each boiler into a reheated hot end steam main pipe and allowing the reheated hot end steam to enter an intermediate pressure cylinder of each steam turbine.
7. The multi-furnace multi-header reheat power generation method as set forth in claim 6,
the reheating cold-end steam main pipe is respectively connected with a reheater of each boiler through a corresponding reheating cold-end steam sub-pipe, and a steam distribution valve is respectively arranged in each reheating cold-end steam sub-pipe, namely
And after the high-pressure cylinder exhaust steam generated by each steam turbine is collected by a reheating cold-end steam main pipe, the high-pressure cylinder exhaust steam is distributed by corresponding steam distribution valves and respectively enters a reheater of a corresponding boiler.
8. The multi-furnace multi-header reheat power generation method as set forth in claim 6,
and the reheater outlet steam of each boiler is collected to a reheater outlet steam main pipe through a corresponding low-pressure bypass valve respectively so as to reduce the temperature and the pressure of the reheater outlet steam.
9. The multi-furnace multi-header reheat power generation method as set forth in claim 8,
the reheater outlet steam main pipe is respectively connected with the condensers of the turbines through corresponding reheater outlet steam sub-pipes, and each reheater outlet steam sub-pipe is respectively provided with a steam distribution valve, namely
And the reheater outlet steam collected in the reheater outlet steam main pipe is distributed by corresponding steam distribution valves and respectively enters the condensers of the corresponding turbines.
10. The multi-furnace multi-header reheat power generation method as set forth in claim 6,
the main reheated hot end steam pipe is connected with the intermediate pressure cylinder of each steam turbine through the corresponding reheated hot end steam sub-pipe, and a steam distribution valve is arranged in each reheated hot end steam sub-pipe, namely
And the reheater outlet steam collected in the reheated hot end steam main pipe is distributed by corresponding steam distribution valves and respectively enters the intermediate pressure cylinders of the corresponding steam turbines.
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| CN202210214575.8A CN114562344A (en) | 2022-03-07 | 2022-03-07 | Multi-furnace multi-machine main pipe reheating power generation system and method suitable for garbage power generation industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210214575.8A CN114562344A (en) | 2022-03-07 | 2022-03-07 | Multi-furnace multi-machine main pipe reheating power generation system and method suitable for garbage power generation industry |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206942819U (en) * | 2017-07-12 | 2018-01-30 | 光大环保技术研究院（南京）有限公司 | A kind of piping-main scheme reheat system and burning electricity generation system |
| CN113175362A (en) * | 2021-04-25 | 2021-07-27 | 西安热工研究院有限公司 | Bus pipe connection system for realizing zero output of low-pressure cylinder and operation method |
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- 2022-03-07 CN CN202210214575.8A patent/CN114562344A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206942819U (en) * | 2017-07-12 | 2018-01-30 | 光大环保技术研究院（南京）有限公司 | A kind of piping-main scheme reheat system and burning electricity generation system |
| CN113175362A (en) * | 2021-04-25 | 2021-07-27 | 西安热工研究院有限公司 | Bus pipe connection system for realizing zero output of low-pressure cylinder and operation method |
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