CN108960569A - Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium - Google Patents
Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium Download PDFInfo
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- 238000000605 extraction Methods 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 230000008901 benefit Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1003—Arrangement or mounting of control or safety devices for steam heating systems
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q50/06—Energy or water supply
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Abstract
The embodiment of the invention provides a kind of thermal power plant extraction for heat supply method, apparatus, equipment and storage mediums, wherein method includes the following steps: obtaining the steam of default extraction flow；The steam of the default extraction flow is calculated for generated profit of powering, calculates the steam of the default extraction flow for profit caused by heat supply；Profit caused by powering subtracts profit caused by heat supply, and it is poor to obtain profit；When the profit difference meets preset condition, using the steam of the default extraction flow come heat supply.The program is determined whether using the steam of the default extraction flow based on economic profit brought by the steam of default extraction flow come heat supply, be conducive to determine that reasonable steam extraction share carrys out heat supply, the more profits of acquisition provide reference for power plant, there is theoretic scientific and very strong practicability.
Description
Technical field
The present invention relates to technical field, in particular to a kind of thermal power plant extraction for heat supply method, apparatus, equipment and storage
Medium.
Background technique
In thermal power plant, fuel combustion heat release amount in the boiler, after the water heating in water-cooling wall is become steam
It does work and generates electricity into steam turbine.In addition, power plant, which can also extract a part of steam out, is all used to external heat supply, external heat supply steam extraction
How much share is not only related to unit economy index, but also important to pushing power plant's heat supply and the development of electric utility also to have
The problem of influencing, how reasonably to share total amount of heat to electric energy and thermal energy both products, being always power plant's research and discuss.
Summary of the invention
The embodiment of the invention provides a kind of thermal power plant extraction for heat supply methods, to solve to take out in the prior art
The technical issues of vapour reasonable distribution is to heat supply and power supply.This method comprises:
Obtain the steam of default extraction flow；
The steam of the default extraction flow is calculated for generated profit of powering, calculates the default extraction flow
Steam is for profit caused by heat supply；
Profit caused by powering subtracts profit caused by heat supply, and it is poor to obtain profit；
When the profit difference meets preset condition, using the steam of the default extraction flow come heat supply.
In one embodiment, the steam of the default extraction flow is calculated for generated profit of powering, comprising:
The steam of the default extraction flow is calculated by the following formula for generated profit of powering:
E1=G × (hj-hwj)×ηj×t1×C1/3.6
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；ηjIt is steam extraction efficiency；t1It is power-on time；C1It is the price of electricity.
In one embodiment, the steam of the default extraction flow is calculated for profit caused by heat supply, comprising:
The steam of the default extraction flow is calculated by the following formula for profit caused by heat supply:
E2=G × (hj-hwj)×t2×C2
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply.
In one embodiment, when the profit difference meets preset condition, using the steam of the default extraction flow
Carry out heat supply, comprising:
When the profit difference is less than zero, using the steam of the default extraction flow come heat supply.
The embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, the processor realize above-mentioned arbitrary fire when executing the computer program
Power power plant extraction for heat supply method.To solve in the prior art not asking steam extraction reasonable distribution to the technology of heat supply and power supply
Topic.
The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage
There is the computer program for executing above-mentioned arbitrary thermal power plant extraction for heat supply method.It in the prior art can not be by steam extraction with solution
The technical issues of reasonable distribution is to heat supply and power supply.
The embodiment of the invention also provides a kind of thermal power plant extraction for heat supply devices, to solve not inciting somebody to action in the prior art
The technical issues of steam extraction reasonable distribution is to heat supply and power supply.The device includes:
Steam acquisition module, for obtaining the steam of default extraction flow；
Computing module, for calculating the steam of the default extraction flow for generated profit of powering, described in calculating
The steam of default extraction flow is for profit caused by heat supply；
Profit difference computing module, for that will power, generated profit subtracts profit caused by heat supply, and it is poor to obtain profit；
For thermal modules, for when the profit difference meets preset condition, using the steam of the default extraction flow come
Heat supply.
In one embodiment, the computing module, comprising:
First computing unit, for being calculated by the following formula the steam of the default extraction flow for produced by powering
Profit:
E1=G × (hj-hwj)×ηj×t1×C1/3.6
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is the steaming of default extraction flow
Vapour；hjIt is the enthalpy of extraction for heat supply steam；hwjIt is return water enthalpy；ηjIt is steam extraction efficiency；t1It is power-on time；C1It is the price of electricity.
In one embodiment, the computing module, further includes:
Second computing unit, for being calculated by the following formula the steam of the default extraction flow for produced by heat supply
Profit:
E2=G × (hj-hwj)×t2×C2
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply.
In one embodiment, described to be specifically used for for thermal modules when the profit difference is less than zero, using described default
The steam of extraction flow carrys out heat supply.
In embodiments of the present invention, for the steam of default extraction flow, the steam of default extraction flow is calculated for supplying
Difference between profit caused by profit and heat supply caused by electricity, and then determine whether to use according to the size of difference and be somebody's turn to do
The steam of default extraction flow carrys out heat supply.Determine whether to adopt based on economic profit brought by the steam of default extraction flow
The steam of extraction flow is preset come heat supply with this, is conducive to determine that reasonable steam extraction share is carried out heat supply, obtained more for power plant
Profit provides reference, has theoretic scientific and very strong practicability.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of thermal power plant extraction for heat supply method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural block diagram of thermal power plant extraction for heat supply device provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In embodiments of the present invention, a kind of thermal power plant extraction for heat supply method is provided, as shown in Figure 1, this method packet
It includes:
Step 101: obtaining the steam of default extraction flow；
Step 102: calculating the steam of the default extraction flow for generated profit of powering, calculate the default pumping
The steam of steam flow amount is for profit caused by heat supply；
Step 103: profit caused by powering subtracts profit caused by heat supply, and it is poor to obtain profit；
Step 104: when the profit difference meets preset condition, using the steam of the default extraction flow come heat supply.
Process as shown in Figure 1 is it is found that in embodiments of the present invention, for the steam of default extraction flow, calculate default
The steam of extraction flow be used to power caused by difference between profit caused by profit and heat supply, and then according to difference
Size determines whether using the steam of the default extraction flow come heat supply.Brought by steam i.e. based on default extraction flow
Economic profit determines whether to be conducive to determine reasonable steam extraction part for power plant come heat supply using the steam of the default extraction flow
Volume carrys out heat supply, obtains more profits offer references, has theoretic scientific and very strong practicability.
When it is implemented, the steam that can calculate the default extraction flow by following formula (1) is produced for power supply station
Raw profit:
E1=G × (hj-hwj)×ηj×t1×C1/3.6 (1)
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is default extraction flow, unit
It can be with are as follows: t/h；hjIt is the enthalpy of extraction for heat supply steam, unit can be with are as follows: kJ/kg；hwjIt is return water enthalpy, unit can be with are as follows: kJ/
kg；ηjIt is steam extraction efficiency；t1It is power-on time, unit can be with are as follows: h；C1It is the price of electricity, unit can be with are as follows: member/kWh.
When it is implemented, the steam that can calculate the default extraction flow by following formula (2) is produced for heat supply
Raw profit:
E2=G × (hj-hwj)×t2×C2
(2)
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply, unit can be with
Are as follows: member/GJ.
When it is implemented, can calculate generated profit of powering by following formula (3) subtracts benefit caused by heat supply
Moisten obtained profit difference Δ C:
Δ C=E1-E2 (3)
Specifically, when the profit difference is less than zero, that is to say, that profit caused by heat supply is greater than caused by power supply
When profit, using the steam of the default extraction flow come heat supply；Similarly, when the profit difference is greater than zero, that is to say, that supply
It when profit caused by heat is less than profit caused by power supply, is powered using the steam of the default extraction flow, to realize
Benefit.
When it is implemented, under market situation in different periods, the price C of electricity1With the steam heat for heat supply
Price C2Being possible changed, according to above-mentioned formula (1), (2) it is found that the variation as price is used for caused by heat supply
Profit and it can also change with market situation for profit caused by powering, so that profit difference Δ C is also to change therewith,
That is, profit difference may be greater than zero, and under another market situation, profit difference can also under a kind of market situation
It can be less than zero, determined whether based on the size of profit difference in this way using the steam of default sucking rate come heat supply, so that it may
It realizes and maximum economic interests is in time obtained based on market situation.
In the present embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize above-mentioned arbitrary firepower when executing the computer program
Power plant extraction for heat supply method.
In the present embodiment, a kind of computer readable storage medium, the computer-readable recording medium storage are provided
There is the computer program for executing above-mentioned arbitrary thermal power plant extraction for heat supply method.
Based on the same inventive concept, a kind of thermal power plant extraction for heat supply device is additionally provided in the embodiment of the present invention, such as
Described in the following examples.The principle and thermal power plant extraction for heat supply solved the problems, such as due to thermal power plant extraction for heat supply device
Method is similar, therefore the implementation of thermal power plant extraction for heat supply device may refer to the reality of thermal power plant extraction for heat supply method
It applies, overlaps will not be repeated.Used below, the software of predetermined function may be implemented in term " unit " or " module "
And/or the combination of hardware.Although device described in following embodiment is preferably realized with software, hardware or soft
The realization of the combination of part and hardware is also that may and be contemplated.
Fig. 2 is a kind of structural block diagram of the thermal power plant extraction for heat supply device of the embodiment of the present invention, as shown in Fig. 2, should
Device includes:
Steam acquisition module 201, for obtaining the steam of default extraction flow；
Computing module 202, the steam for calculating the default extraction flow calculate institute for generated profit of powering
The steam of default extraction flow is stated for profit caused by heat supply；
Profit difference computing module 203, for that will power, generated profit subtracts profit caused by heat supply, obtains profit
Difference；
For thermal modules 204, for when the profit difference meets preset condition, using the steam of the default extraction flow
Carry out heat supply.
In one embodiment, the computing module, comprising:
First computing unit, for being calculated by the following formula the steam of the default extraction flow for produced by powering
Profit:
E1=G × (hj-hwj)×ηj×t1×C1/3.6
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；ηjIt is steam extraction efficiency；t1It is power-on time；C1It is the price of electricity.
In one embodiment, the computing module, further includes:
Second computing unit, for being calculated by the following formula the steam of the default extraction flow for produced by heat supply
Profit:
E2=G × (hj-hwj)×t2×C2
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is to take out
The enthalpy of vapour heating steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply.
In one embodiment, described to be specifically used for for thermal modules when the profit difference is less than zero, using described default
The steam of extraction flow carrys out heat supply.
The embodiment of the present invention realizes following technical effect: for the steam of default extraction flow, calculating default steam extraction stream
The steam of amount be used to power caused by difference between profit caused by profit and heat supply, and then according to the size of difference come
Determine whether using the steam of the default extraction flow come heat supply.The benefit of economy brought by steam i.e. based on default extraction flow
Moisten to determine whether to be conducive to determine reasonable steam extraction share for power plant to supply come heat supply using the steam of the default extraction flow
Heat obtains more profits offer references, has theoretic scientific and very strong practicability.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step can be with
It is realized with general computing device, they can be concentrated on a single computing device, or be distributed in multiple computing devices
On composed network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by it
Store and be performed by computing device in the storage device, and in some cases, can be held with the sequence for being different from herein
The shown or described step of row, perhaps they are fabricated to each integrated circuit modules or will be multiple in them
Module or step are fabricated to single integrated circuit module to realize.In this way, the embodiment of the present invention be not limited to it is any specific hard
Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of thermal power plant extraction for heat supply method characterized by comprising
Obtain the steam of default extraction flow；
The steam of the default extraction flow is calculated for generated profit of powering, calculates the steam of the default extraction flow
For profit caused by heat supply；
Profit caused by powering subtracts profit caused by heat supply, and it is poor to obtain profit；
When the profit difference meets preset condition, using the steam of the default extraction flow come heat supply.
2. extraction for heat supply method in thermal power plant as described in claim 1, which is characterized in that calculate the default extraction flow
Steam for powering generated profit, comprising:
The steam of the default extraction flow is calculated by the following formula for generated profit of powering:
E1=G × (hj-hwj)×ηj×t1×C1/3.6
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is default extraction flow；hjIt is that steam extraction supplies
The enthalpy of hot steam；hwjIt is return water enthalpy；ηjIt is steam extraction efficiency；t1It is power-on time；C1It is the price of electricity.
3. extraction for heat supply method in thermal power plant as described in claim 1, which is characterized in that calculate the default extraction flow
Steam for profit caused by heat supply, comprising:
The steam of the default extraction flow is calculated by the following formula for profit caused by heat supply:
E2=G × (hj-hwj)×t2×C2
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is that steam extraction supplies
The enthalpy of hot steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply.
4. extraction for heat supply method in thermal power plant as claimed any one in claims 1 to 3, which is characterized in that in the benefit
When profit difference meets preset condition, using the steam of the default extraction flow come heat supply, comprising:
When the profit difference is less than zero, using the steam of the default extraction flow come heat supply.
5. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any one of claims 1 to 4 institute when executing the computer program
The thermal power plant extraction for heat supply method stated.
6. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has perform claim
It is required that the computer program of extraction for heat supply method in thermal power plant described in any one of 1 to 4.
7. a kind of thermal power plant extraction for heat supply device characterized by comprising
Steam acquisition module, for obtaining the steam of default extraction flow；
Computing module, the steam for calculating the default extraction flow calculate described default for generated profit of powering
The steam of extraction flow is for profit caused by heat supply；
Profit difference computing module, for that will power, generated profit subtracts profit caused by heat supply, and it is poor to obtain profit；
For thermal modules, for when the profit difference meets preset condition, using the steam of the default extraction flow come heat supply.
8. extraction for heat supply device in thermal power plant as claimed in claim 7, which is characterized in that the computing module, comprising:
First computing unit, for being calculated by the following formula the steam of the default extraction flow for generated benefit of powering
Profit:
E1=G × (hj-hwj)×ηj×t1×C1/3.6
Wherein, E1It is the steam of default extraction flow for generated profit of powering；G is default extraction flow；hjIt is that steam extraction supplies
The enthalpy of hot steam；hwjIt is return water enthalpy；ηjIt is steam extraction efficiency；t1It is power-on time；C1It is the price of electricity.
9. extraction for heat supply device in thermal power plant as claimed in claim 7, which is characterized in that the computing module, further includes:
Second computing unit, for being calculated by the following formula the steam of the default extraction flow for benefit caused by heat supply
Profit:
E2=G × (hj-hwj)×t2×C2
Wherein, E2It is the steam of default extraction flow for profit caused by heat supply；G is default extraction flow；hjIt is that steam extraction supplies
The enthalpy of hot steam；hwjIt is return water enthalpy；t2It is heating time；C2It is the steam heat price for heat supply.
10. the thermal power plant extraction for heat supply device as described in any one of claim 7 to 9, which is characterized in that the heat supply
Module is specifically used for when the profit difference is less than zero, using the steam of the default extraction flow come heat supply.
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| CN201810554903.2A CN108960569A (en) | 2018-06-01 | 2018-06-01 | Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium |
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| CN201810554903.2A CN108960569A (en) | 2018-06-01 | 2018-06-01 | Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295981A (en) * | 2016-08-05 | 2017-01-04 | 华电电力科学研究院 | Unit extraction for heat supply returns the econmics comparison method of steam turbine acting generating with it |
| CN107152316A (en) * | 2017-07-13 | 2017-09-12 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient utilization system of steam energy |
-
2018
- 2018-06-01 CN CN201810554903.2A patent/CN108960569A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295981A (en) * | 2016-08-05 | 2017-01-04 | 华电电力科学研究院 | Unit extraction for heat supply returns the econmics comparison method of steam turbine acting generating with it |
| CN107152316A (en) * | 2017-07-13 | 2017-09-12 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient utilization system of steam energy |
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