CN206257719U - The system that heating network accumulation of energy improves thermal power plant's operational flexibility - Google Patents
The system that heating network accumulation of energy improves thermal power plant's operational flexibility Download PDFInfo
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- CN206257719U CN206257719U CN201621380748.XU CN201621380748U CN206257719U CN 206257719 U CN206257719 U CN 206257719U CN 201621380748 U CN201621380748 U CN 201621380748U CN 206257719 U CN206257719 U CN 206257719U
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- heating
- pipe network
- heat
- heat exchangers
- pipe
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Abstract
The system that heating network accumulation of energy improves thermal power plant's operational flexibility, the utility model is related to the system that a heating network accumulation of energy improves thermal power plant's operational flexibility, the utility model content is to solve electric boiler production section hot water heating of not surfed the Net during fired power generating unit peak regulation reduction generation load, the electric energy of high-quality is converted into low-quality heat energy, energy loss is big, and a steam extraction part for generating is stored into storage tank, using the hot water heating in storage tank, the problem for causing investment big, it includes No. at least one heat exchangers for district heatings, electric control valve, secondary heat exchangers for district heating, bypass line, pipe network heat supplying pipeline, pipe network water return pipeline, secondary pipe network heat supplying pipeline, secondary pipe network water return pipeline and heat user, the utility model is used for storing energy and supplying hot field.
Description
Technical field
The utility model is related to the system that a heating network accumulation of energy improves thermal power plant's operational flexibility.
Background technology
With the development of solar energy and wind energy clean electric power, it is main trend gradually to reduce fired power generating unit generated energy, when new energy
When ratio of the source in power network gradually expands, the demand to peaking power source also gradually rises, and for coal as it is main once
For the country of the energy, efficiently the coal-fired plant of section property just becomes feasible selection the most real.Because wind-powered electricity generation and solar energy are sent out
Electricity has the requirement of its particular surroundings again, and to ensure the security of power network, fired power generating unit can not be closed down, the flexibility that country runs to it
Propose requirements at the higher level.Thermoelectricity flexibility mainly includes two aspects：1：The underrun of depth peaking boiler and steam turbine, unit
The thermoelectricity decoupling of rapid starting/stopping, unit creep speed and cogeneration units.The flexibility of 2 fuel：Thermal power plant's fuel it is variable
Property, various fossil fuels such as including coal, oil, combustion gas, the multifuel combustion of fossil fuel and biomass fuel, or even including complete biological
The multiple renewable energy sources fuel such as matter, rubbish.
Grid requirements fired power generating unit peak regulation reduction generation load, now with the general method taken of thermal power plant of thermic load
It is：One be unit do as usual send electricity a part online, another part do not surf the Net using electric boiler production heat use this part
Hot water heating.This method has the disadvantage for the electric energy of high-quality to be converted into low-quality heat energy, and energy loss is big.
Also individual method is：Extracting the steam of generating out a part reduces generated energy, the steam feedwater heating storage of extraction
It is stored in storage tank, when steam is completely used for the big load generator operation of generating set, does not draw gas now or the amount of drawing gas is few, utilizes
Hot water heating in storage tank, this method has the disadvantage that investment is big.
Utility model content
The utility model content is to solve the electric boiler production department that do not surfed the Net during fired power generating unit peak regulation reduction generation load
The electric energy of hot water heating, high-quality is divided to be converted into low-quality heat energy, energy loss is big, and extracts the steam of generating out one
Divide and be stored into storage tank, using the hot water heating in storage tank, the problem for causing investment big, and then provide a heating network accumulation of energy
The system for improving thermal power plant's operational flexibility.
The technical scheme that the utility model is used to solve the above problems is：
It includes No. at least one heat exchangers for district heatings, electric control valve, secondary heat exchangers for district heating, bypass line, once
Pipe network heat supplying pipeline, pipe network water return pipeline, secondary pipe network heat supplying pipeline, secondary pipe network water return pipeline and a heat user, once
Heat exchangers for district heating once heats outlet pipe water side and is connected with one end of a pipe network heat supplying pipeline, pipe network heat supplying pipeline
The other end is connected with secondary heat exchangers for district heating reheating oral siphon water intake end, an one end for pipe network water return pipeline and once heat
Net heater once heats the connection of return pipe arrival end, and an other end for pipe network water return pipeline is heated with secondary heat exchangers for district heating
Return pipe water outlet pipe end is connected, and secondary heat exchangers for district heating heating outlet pipe water side connects with one end of secondary pipe network heat supplying pipeline
Logical, the other end of secondary pipe network heat supplying pipeline is connected with heat user water inlet, heat user delivery port and secondary pipe network water return pipeline
One end connection, the other end of secondary pipe network water return pipeline and secondary heat exchangers for district heating heating return pipe arrival end are connected, electronic
Regulating valve is arranged on bypass line, and one end of bypass line sets near secondary heat exchangers for district heating reheating oral siphon water intake end
Put on a pipe network heat supplying pipeline, the other end of bypass line near secondary heat exchangers for district heating heating return pipe water outlet pipe end with
Pipe network water return pipeline connection.
The beneficial effects of the utility model are：
A heat exchangers for district heating 1 is heated to steam in the utility model, closes the steam that electric control valve 2 will be heated
By in a feeding secondary heat exchangers for district heating 3 of pipe network heat supplying pipeline 6, and by secondary pipe network heat supplying pipeline 8 to heat user 10
Heat supply is carried out, the effect that heat supply is carried out to heat user 10 is reached, electric control valve 2 is opened when heat user 10 does not need heat supply,
The steam of heating of heat exchangers for district heating 1 is followed by pipe network heat supplying pipeline 6, bypass line 5 and a pipe network water return pipeline 7
In heat exchangers for district heating 1 of loopback, returned by the pipe network heat supplying pipeline 6, a time of bypass line 5, time pipe network in the utility model
Water lines 7 and a heat exchangers for district heating 1 carry out storage heat energy.
2nd, in the utility model by draw gas by the hot water heating in a pipe network to close to 130 degree, make bypass line 5,
6, pipe network water return pipeline 7 of pipe network heat supplying pipeline and a heat exchangers for district heating 1 can store tens of thousands of tons of hot water.Work as unit
The heat heat supply stored using pipe network during peak regulation, enhancing thermal power plant operational flexibility are not needed.
3rd, heating network has small, the flexible and convenient operation of investment in the utility model, and pipe network energy storage effect is good, thermal loss
Small the characteristics of.
4th, the utility model heating network can store tens of thousands of tons of hot water, while saving the cost for setting up heat-accumulator tank, save
Fund, the utility model takes related technical measures in terms of the flexibility of load adjustment, so as to improve thermal power plant's operation spirit
It is living.
Brief description of the drawings
Fig. 1 is the utility model structure chart.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1, a heating network accumulation of energy described in present embodiment is carried
The system of thermal power plant's operational flexibility high, it adds including No. at least one heat exchangers for district heatings 1, electric control valve 2, a secondary heat supply networks
Hot device 3, bypass line 5, a time pipe network heat supplying pipeline 6, a time pipe network water return pipeline 7, secondary pipe network heat supplying pipeline 8, secondary pipe
Net water return pipeline 9 and heat user 10, No. one time heat exchangers for district heating 1 once heats outlet pipe water side and a pipe network heat supplying pipeline 6
One end connection, an other end for pipe network heat supplying pipeline 6 and the reheating oral siphon water intake end of secondary heat exchangers for district heating 3 connect
Logical, an one end for pipe network water return pipeline 7 is once heated return pipe arrival end and is connected with a heat exchangers for district heating 1, a pipe network
The other end of water return pipeline 7 is connected with the heating return pipe water outlet pipe end of secondary heat exchangers for district heating 3, and secondary heat exchangers for district heating 3 is heated
Outlet pipe water side connects with one end of secondary pipe network heat supplying pipeline 8, the other end and heat user of secondary pipe network heat supplying pipeline 8
10 water inlets are connected, and the delivery port of heat user 10 is connected with one end of secondary pipe network water return pipeline 9, secondary pipe network water return pipeline 9
The other end is connected with the heating return pipe arrival end of secondary heat exchangers for district heating 3, and electric control valve 2 is arranged on bypass line 5, bypass
One end of pipeline 5 is arranged on a pipe network heat supplying pipeline 6 near the reheating oral siphon water intake end of secondary heat exchangers for district heating 3,
The other end of bypass line 5 connects near the heating return pipe water outlet pipe end of secondary heat exchangers for district heating 3 with a pipe network water return pipeline 7
It is logical.
Specific embodiment two：Present embodiment is illustrated with reference to Fig. 1, a heating network accumulation of energy described in present embodiment is carried
The system of thermal power plant's operational flexibility high, it also includes the temperature sensor 4 with controller, the TEMP with controller
Device is arranged on secondary pipe network water return pipeline 9 near the heating return pipe arrival end of secondary heat exchangers for district heating 3, and with controller
Temperature sensor 4 is electrically connected with electric control valve 2.The temperature sensor 4 with controller is to secondary heat supply network in present embodiment
The temperature of the heating return pipe arrival end of heater 3 carries out temperature detection, when the heating return pipe arrival end of secondary heat exchangers for district heating 3
Control electric control valve 2 to open by controller when temperature meets 10 heat supply temperature peak of heat user, heat a heat supply network
Device 1 is once heated the water after the heating of outlet pipe water side and is returned by pipe network heat supplying pipeline 6, bypass line 5 and a pipe network
Water lines 7 are looped back in a heat exchangers for district heating 1, and carry out storage hot water to hot water, when the temperature sensor 4 with controller
Pass through control when detecting that the temperature of the heating return pipe arrival end of secondary heat exchangers for district heating 3 is less than 10 heat supply temperature minimum of heat user
Device control electric control valve 2 is closed, by a hot water for heat exchangers for district heating 1 by a pipe network heat supplying pipeline 6 to second heat
Net heater 3 is passed through, and hot water for pipe network heat supplying pipeline 6 of secondary heat exchangers for district heating 3 pair carries out reheating, and by secondary
Pipe network heat supplying pipeline 8 is provided to heat user 10, and heat supply is carried out to heat user 10, and other are identical with specific embodiment one.
Specific embodiment three：Present embodiment is illustrated with reference to Fig. 1, a heating network accumulation of energy described in present embodiment is carried
The system of thermal power plant's operational flexibility high, electric control valve 2 is single phase electric motor type regulating valve or three electric control valves.Other and tool
Body implementation method one is identical.
Specific embodiment four：Present embodiment is illustrated with reference to Fig. 1, a heating network accumulation of energy described in present embodiment is carried
The system of thermal power plant's operational flexibility high, number for heat exchangers for district heating 1 is one to three, other and specific embodiment
One is identical.
Operation principle
A steam inlet end of heat exchangers for district heating 1 connects with steam oral siphon in the utility model, a heat exchangers for district heating 1
Return pipe water side connects with return pipe outlet pipe, steam is passed through to a heat exchangers for district heating 1 by steam oral siphon, by one
Secondary heat exchangers for district heating 1 is heated, and electric control valve 2 is closed when heat user 10 needs heat supply, while passing through a heat exchangers for district heating 1
Hot water be passed through to secondary heat exchangers for district heating 3 by a pipe network heat supplying pipeline 6, pipe network of secondary heat exchangers for district heating 3 pair is supplied
The hot water of pipe line 6 carries out reheating, and is provided to heat user 10 by secondary pipe network heat supplying pipeline 8, when the temperature of heat user 10
Degree reaches opens electric control valve 2 when requirement does not need heat supply, the hot water after a heating of heat exchangers for district heating 1 passes through a pipe network
Heat supplying pipeline 6, bypass line 5 and a pipe network water return pipeline 7 are looped back in a heat exchangers for district heating 1, and by bypass line
5th, 6, pipe network water return pipeline 7 of a pipe network heat supplying pipeline and a heat exchangers for district heating 1 carry out accumulation of heat to the hot water in system
Energy storage, by drawing gas the hot water heating in a pipe network to tens of thousands of tons of hot water close to 130 degree, can be stored, when unit is not required to
The heat heat supply stored using pipe network when wanting peak regulation, while saving the cost for setting up energy storage tank, saves old, saves money
Gold.
Claims (4)
1. the system that a heating network accumulation of energy improves thermal power plant's operational flexibility, it is characterised in that：It includes at least one 1
Secondary heat exchangers for district heating (1), electric control valve (2), secondary heat exchangers for district heating (3), bypass line (5), a pipe network heat supplying pipeline
(6), pipe network water return pipeline (7), secondary pipe network heat supplying pipeline (8), secondary pipe network water return pipeline (9) and a heat user (10),
Heat exchangers for district heating (1) is once heated outlet pipe water side and is connected with one end of a pipe network heat supplying pipeline (6), a pipe network
The other end of heat supplying pipeline (6) is connected with secondary heat exchangers for district heating (3) reheating oral siphon water intake end, a pipe network return pipe
The one end on road (7) is once heated return pipe arrival end and is connected with a heat exchangers for district heating (1), pipe network water return pipeline (7)
The other end is connected with secondary heat exchangers for district heating (3) heating return pipe water outlet pipe end, and secondary heat exchangers for district heating (3) heating outlet pipe goes out
Water end (W.E.) is connected with the one end of secondary pipe network heat supplying pipeline (8), and the other end and the heat user (10) of secondary pipe network heat supplying pipeline (8) enter
The mouth of a river is connected, and heat user (10) delivery port is connected with one end of secondary pipe network water return pipeline (9), secondary pipe network water return pipeline (9)
The other end and secondary heat exchangers for district heating (3) heating return pipe arrival end connect, electric control valve (2) is arranged on bypass line
(5) on, one end of bypass line (5) is arranged near secondary heat exchangers for district heating (3) reheating oral siphon water intake end once manages
On net heat supplying pipeline (6), the other end of bypass line (5) near secondary heat exchangers for district heating (3) heating return pipe water outlet pipe end with
Pipe network water return pipeline (7) connection.
2. the system that a heating network accumulation of energy improves thermal power plant's operational flexibility according to claim 1, it is characterised in that：
It also includes the temperature sensor (4) with controller, and temperature sensor enters near secondary heat exchangers for district heating (3) heating return pipe
Mouth end is arranged on secondary pipe network water return pipeline (9), and the temperature sensor (4) with controller and electric control valve (2) electricity
Connection.
3. the system that a heating network accumulation of energy improves thermal power plant's operational flexibility according to claim 1, it is characterised in that：
Electric control valve (2) is single phase electric motor type regulating valve or three electric control valves.
4. the system that a heating network accumulation of energy improves thermal power plant's operational flexibility according to claim 1, it is characterised in that：
No. one time the number of heat exchangers for district heating (1) is one to three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380748.XU CN206257719U (en) | 2016-12-15 | 2016-12-15 | The system that heating network accumulation of energy improves thermal power plant's operational flexibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380748.XU CN206257719U (en) | 2016-12-15 | 2016-12-15 | The system that heating network accumulation of energy improves thermal power plant's operational flexibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257719U true CN206257719U (en) | 2017-06-16 |
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ID=59029088
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621380748.XU Expired - Fee Related CN206257719U (en) | 2016-12-15 | 2016-12-15 | The system that heating network accumulation of energy improves thermal power plant's operational flexibility |
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| Country | Link |
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| CN (1) | CN206257719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482196A (en) * | 2016-12-15 | 2017-03-08 | 冯健 | Heating network accumulation of energy improves the system of thermal power plant's operational flexibility |
-
2016
- 2016-12-15 CN CN201621380748.XU patent/CN206257719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482196A (en) * | 2016-12-15 | 2017-03-08 | 冯健 | Heating network accumulation of energy improves the system of thermal power plant's operational flexibility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |