CN206386989U - Solid electric heat-storage device combines heat accumulation water pot power network depth peak regulation system - Google Patents
Solid electric heat-storage device combines heat accumulation water pot power network depth peak regulation system Download PDFInfo
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- CN206386989U CN206386989U CN201720093990.7U CN201720093990U CN206386989U CN 206386989 U CN206386989 U CN 206386989U CN 201720093990 U CN201720093990 U CN 201720093990U CN 206386989 U CN206386989 U CN 206386989U
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Abstract
The utility model provides a kind of solid electric heat-storage device and combines heat accumulation water pot power network depth peak regulation system, including main electrical scheme system, electric heat storage system, heat supply network circulation, turbine steam extraction system, it is characterised in that：Electric heat storage system increases an interval newly on power plant's outlet bus, is connected with step-down transformer, the step-down transformer other end is connected with electric heat-storage device power supply buses, one or more electric heat-storage devices are connected on power supply buses；Lateral is set in the water supply side ducts or backwater side ducts of heat supply network circulation, is connected with the electric heat-storage device, heat supply network recirculated water is supplied after one or more heating devices heats to heat user.The utility model combines the heat accumulation advantage that solid electricity stores device and heat accumulation water pot, solves the energy demand imbalance problem of electric energy and heat energy in region, and more heats are provided to heat demand larger area, increases area of heat-supply service.
Description
Technical field
The utility model is related to power peak regulation field, more particularly to thermal power generation unit utilizes solid electric heat-storage device and storage
Hot-water cylinder participates in depth peak regulation.
Background technology
It is rich in Chinese three northern areas of China electricity market capacity, combustion engine, water-storage etc. can peaking power source it is rare, peak load regulation network
Particularly thorny between fired power generating unit flexibility, power network is dissolved the scarce capacities of the new energy such as wind-powered electricity generation, photoelectricity and nuclear power, is abandoned wind and is abandoned
Optical phenomenon is serious；And cogeneration units are run using " electricity determining by heat " mode, peak modulation capacity is only 10% or so, and peak regulation is difficult
Have become current operation of power networks distinct issues the most.If the contradiction processing between peak load regulation network and fired power generating unit heat supply is not
It is good, resident's heat supply in winter safety, the relation people's livelihood may be influenceed.In order to meet peaking demand of power grid, and power plant in keen competition
In living necessities, depth peak regulation is imperative.
The Chinese patent of Application No. 201610278493.4 provides a kind of peak regulation heating system with heat accumulation and control
Method, including electric furnace, energy-storage system, heating system, the first regulating valve and the second regulating valve；The heat transfer of electric furnace is situated between
Matter outlet is connected to energy-storage system, heating system by the first regulating valve, the second regulating valve through pipeline respectively.Although the patent is transported
Peak regulation is participated in heat accumulation equipment, but there was only one-level heating to heat transfer medium, the utilization to heat energy and electric energy is not abundant enough, nothing
Method meets the dual requirementses of large area heat supply and depth peak regulation.
Utility model content
In order to improve the flexibility of fired power generating unit, solve to presently, there are larger abandons the problem of wind abandons optical phenomenon, this practicality
New integrated thermal electric unit heat accumulation water pot technology and electric boiler district heating technology, realize power generation and the mutually auxiliary fortune of heating power production
OK, the online peak modulation capacity of thermoelectricity unit is obviously improved, can effectively alleviate regenerative resource and dissolve predicament, while have wide again
Market development space.
The utility model solves the technical scheme that is used of aforementioned technical problem：A kind of solid electric heat-storage device joint storage
Hot-water cylinder power network depth peak regulation system, including main electrical scheme system, electric heat storage system, heat supply network circulation, extracted steam from turbine system
System, electric heat storage system on power plant's outlet bus increase newly one interval, be connected with step-down transformer, the step-down transformer other end and
Electric heat-storage device power supply buses are connected, and one or more electric heat-storage devices are connected on power supply buses；In heat supply network circulation
Water supply side ducts or backwater side ducts set lateral, be connected with the electric heat-storage device, heat supply network recirculated water by one kind
Or supplied after a variety of heating devices heats to heat user.Wherein, electric accumulation of heat refers to carry out energy reserve as the energy using electricity
Various equipment and system.
Preferably, the electric heat-storage device includes solid type electric heat-storage device.
Any of the above-described scheme is preferably, and the solid type electric heat-storage device includes the electric heat storage boiler of solid type.Solid type
Electric heat storage boiler has sufficiently large energy-storage system, can be at night, and the period of low power consumption carries out energy storage, and on daytime, enters
Row heating, energy supply, this advantage solve the problem of heating and wind-powered electricity generation low ebb are dissolved simultaneously.Solid type electricity accumulation of heat peak adjusting device tool
Have high voltage, it is high-power, can accumulation of heat the characteristics of.
Any of the above-described scheme is preferably, and the electric heat-storage device is according to the supporting setting GIS switchgears of actual requirement of engineering
Or bus switchgear.
Any of the above-described scheme is preferably, 10 ~ 66kV of the solid type electric heat-storage device voltage class ranges
Any of the above-described scheme is preferably, 10 ~ 100MW of the solid type electric heat-storage device power bracket.
Any of the above-described scheme is preferably, increase newly between interval, step-down transformer, GIS switchgears, electric heat-storage device according to
Actual requirement of engineering uses steel-cored aluminium strand or cable connection.
Any of the above-described scheme is preferably, and the heat supply network circulation includes heat supply network water return pipeline, pumps for hot water supply net, storage
Hot-water cylinder, heat exchangers for district heating, heat supply network water supply line, valve.Heat exchangers for district heating is the heating water that heat supply network is sent to for heating, heating
Steam, with steam as thermal source, hot net water is heated to required supply water temperature from the higher extracted steam from turbine of pressure, so that
Realize cogeneration of heat and power.
Any of the above-described scheme is preferably, and during heat accumulation water pot heat accumulation, heat supply network recirculated water backwater is to heat accumulation water pot, by steam turbine
Draw gas and heated and be stored in heat accumulation water pot；During heat accumulation water pot heat release, the hot water in heat accumulation water pot flows through pumps for hot water supply net,
Heater is passed through after being boosted through pump to heat supply network feed pipe heat supply.
Any of the above-described scheme is preferably, can be with series or in parallel between heat accumulation water pot and electric heat-storage device.
Any of the above-described scheme is preferably, when being connected between heat accumulation water pot and electric heat-storage device, and heat supply network circulation is supplied
Water side ducts set lateral to be connected with the electric heat-storage device, and the water flowed back by heat user end heat supply network water return pipeline is by storing up
After the heating of hot-water cylinder one-level, flow through pumps for hot water supply net and carry out two grades of heating into heat exchangers for district heating, supplied afterwards directly through heat supply network
Waterpipe is conveyed to user after being conveyed to user, or entrance electric heat-storage device progress three-level heating through heat supply network water supply line.
Any of the above-described scheme is preferably, when in parallel between heat accumulation water pot and electric heat-storage device, and heat supply network circulation is returned
Water side ducts set lateral to be connected with the electric heat-storage device, and the heat accumulation water pot that heat supply network recirculated water is partly into bypass adds
Heat, remainder flows through electric heat-storage device heating, and last whole hot water enters after heat exchangers for district heating heating through heat supply network water supply line
Supply to heat user.
Any of the above-described scheme is preferably, the main electrical scheme system include the first generator, the second generator, transformer,
Power plant's outlet bus, the first outlet, the second outlet and connection power network.
Any of the above-described scheme is preferably, and the turbine steam extraction system includes steam turbine and its enters steam outlet pipe road.In electricity
In the thermodynamic cycle of factory, because the latent heat of vaporization of water vapour is larger, cold source energy is quite big, and cogeneration of heat and power can make full use of
The latent heat of vaporization of steam carries out heat supply, can utilize energy cascade, and the heat energy of high-quality is used to generate electricity, and low-quality heat energy is used
In heat supply, therefore cogeneration of heat and power is to improve the effective method of energy conversion utilization rate.Large-size thermal power plant utilizes affluence
Steam production capacity, be surrounding area carry out extraction for heat supply, on the one hand can utilize efficient boiler for producing high-quality steam,
The utilization rate of fuel is increased substantially, disposal of pollutants is reduced；On the other hand, unit can avoid this using external heat supply of drawing gas
Cold source energy of some vapor in condenser, improves unit cycle efficieny, reduces unit coa consumption rate, is that unit is energy-saving
One important channel.
Any of the above-described scheme is preferably, and a branch in the steam turbine steam outlet pipe road is connected with heat exchangers for district heating, defeated
Steam is sent to be heated for heat exchangers for district heating, another branch is connected with heat accumulation water pot, conveying steam heats for heat accumulation water pot.
In the utility model, solid type electric heat-storage device also can be replaced liquid-type electric heat-storage device, form solid type electricity
Hold over system, liquid-type electric heat storage system or liquid-type and the electric accumulation of heat hybrid system of solid type.Solid type electric heat storage system bag
One or more solid type electric heat-storage devices and its connection power network are included, solid type electric heat storage system refers to using the electric accumulation of heat system of solid type
System carries out the equipment and system of depth peak regulation, and mainly using the electric heat storage boiler of solid type as capital equipment, heat storage is used as using solid
Carry out electric energy and heat energy conversion.Liquid-type electric heat storage system includes one or more liquid-type electric heat-storage devices and its connection electricity
Net, liquid-type electric heat storage system refer to only with liquid-type hot water hold over system carry out depth peak regulation equipment and system, mainly with
Electric pole type hot-water boiler is capital equipment, and electric energy and heat energy conversion are carried out using water as heat storage and working medium.Liquid-type and solid
Formula electricity accumulation of heat hybrid system includes liquid-type electric heat-storage device, solid type electric heat-storage device and its connection power network, and the system is used
The system that electric pole type hot water hold over system and solid type electric heat storage system are combined carries out depth peak regulation, the nucleus equipment of this system
For electric pole type hot-water boiler and the electric heat storage boiler of solid type.This system has mainly considered two kinds of respective advantages of electric boiler,
Electric pole type solid electricity heat storage boiler voltage change is smooth, impacts small to power network, and the electric heat storage boiler heat storage capacity of solid is big, takes up an area
The characteristics of area is small.
Electrical heating group is constituted using series-parallel system by multigroup resistance wire inside every sleeve solid electric heat-storage device at present, should
Electrical heating group is opened while stopping simultaneously as a start and stop unit, and start and stop capacity maximum can reach 100MW, cause very big to power network
Impact, influences the safe operation of power network.In view of this situation, this problem is solved using following several ways in the present invention.
1st, using slope boosting soft starter.The main composition of the soft starter be serially connected with power supply and electric heat-storage device it
Between three-phase inverse parallel high-pressure thyristor and its electronic control circuit.By controlling leading for its internal IGCT of soft-starter control
Current flow angle, makes electric heat-storage device input voltage be gradually increasing from zero with preset function relation, is started until being increased to after rated voltage
Terminate.The impact that electric heat-storage device accesses power network is reduced by the progressively pressure regulation of soft initiator.
2nd, using concatenation variable resistor reduced-voltage starting mode.Concatenated between power supply and solid electric heat-storage device a set of variable
Resistance starting cabinet, the variable resistor cabinet can be thermistor or liquid resistance.When solid electric heat-storage device accesses power network, press
Predetermined set resistance, the resistance of stepless control variable resistor, the proceed-to-send after resistance is close to 0, so that solid
The input voltage of electric heat-storage device is continuously increased, until rated voltage is reached, so as to avoid impact of the full voltage starting to power network.
The utility model combines solid electric heat-storage device and heat accumulation water pot, when user's thermic load is relatively low, heat accumulation
Unnecessary heating load is stored in tank body by water pot；When unit depth peak regulation is tried, solid electric heat-storage device brings into operation, solid
The need for electric heat-storage device, heat exchangers for district heating and heat accumulation water pot coordinated operation meet user's thermic load.Utilize the electric accumulation of heat dress of solid
Put and heat capacity supplemented with heat accumulation water pot, hot net water is heated using wind-resources or low price electric energy is abandoned, realize it is high-quality,
High economy heat supply, realizes energy cascade utilization.
The beneficial effects of the utility model are：
1）This patent combine solid electric heat-storage device high voltage, it is high-power, can accumulation of heat the characteristics of and heat accumulation water pot
The advantage of heat accumulation, solves the energy demand imbalance problem of electric energy and heat energy in region, and heat demand larger area is provided more
Many heats, increase area of heat-supply service.Using solid electric heat-storage device, it can be dissolved in night, low power consumption period or absorption
Wind power resources, carry out energy storage, meet depth peak regulation, unit heat supply is increased during peak load regulation using the heat accumulation of heat accumulation water pot
Amount, can ensure the heat capacity of unit, the depth peak regulation of unit is met again, while meeting the heat demand and power network of heat supply network
Depth peak regulation demand.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
5）Heat accumulation water pot can realize thermoelectricity decoupling operation in short term, improve unit operation flexibility.
Brief description of the drawings
Fig. 1 is to combine the one excellent of heat accumulation water pot power network depth peak regulation system according to solid electric heat-storage device of the present utility model
Select embodiment schematic diagram.
Illustrate：
1- step-down transformers, 2- electricity accumulation of heat buses, 3- electric heat-storage devices, 4- heat supply network water supply lines, 5- heat supply network water return pipelines,
6- heat accumulation water pots, 7- pumps for hot water supply net, 8- heat exchangers for district heatings, 9- valves, the generators of 10- second, the generators of 11- first, 12-
One outlet, the outlets of 13- second, 14- power plant outlet bus, 15- electric heat storage systems, 16- heat supply network circulations, 17- main electrical schemes
System, 18- steam turbines, 19- turbine steam extraction systems.
Embodiment
In order to be further understood that the content of the invention of the present utility model, below in conjunction with specific embodiment to the utility model
It is described in more detail, embodiment only has exemplary effect to the utility model, without any restricted effect；
The insubstantial modifications that any those skilled in the art make on the basis of the utility model, should all belong to the utility model guarantor
The scope of shield.
Embodiment 1
As shown in figure 1, a kind of solid electric heat-storage device joint heat accumulation water pot power network depth peak regulation system, including main electrical scheme system
System 17, electric heat storage system 15, heat supply network circulation 16, turbine steam extraction system 19, electric heat storage system 15 are female in power plant's outlet
Increase an interval on line 14 newly, be connected with step-down transformer 1, the other end of step-down transformer 1 connects with the power supply buses of electric heat-storage device 3
Connect, one or more electric heat-storage devices 3 are connected on electric accumulation of heat bus 2；Heat supply network circulation 16 water supply side ducts or
Backwater side ducts set lateral, are connected with the electric heat-storage device 3, and heat supply network recirculated water is by one or more heaters
Supplied after heating to heat user.Wherein, electric accumulation of heat refers to the various equipment and system for carrying out energy reserve as the energy using electricity.
In the present embodiment, the electric heat-storage device 3 includes solid type electric heat-storage device.
In the present embodiment, the solid type electric heat-storage device includes the electric heat storage boiler of solid type.Solid type electricity heat accumulating pan
Stove has sufficiently large energy-storage system, can be at night, and the period of low power consumption carries out energy storage, and on daytime, is heated, supplied
Can, this advantage solves the problem of heating and wind-powered electricity generation low ebb are dissolved simultaneously.Solid type electricity accumulation of heat peak adjusting device have high voltage,
It is high-power, can accumulation of heat the characteristics of.
In the present embodiment, the electric heat-storage device 3 is opened according to the supporting setting GIS switchgears of actual requirement of engineering or bus
Close equipment.
In the present embodiment, 10 ~ 66kV of the solid type electric heat-storage device voltage class ranges
In the present embodiment, 10 ~ 100MW of the solid type electric heat-storage device power bracket.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS switchgears, electric heat-storage device 3 according to actual work
Journey needs to use steel-cored aluminium strand or cable connection.
In the present embodiment, the heat supply network circulation 16 includes heat supply network water return pipeline 5, circulation pump of heat-supply network 7, heat accumulation
Water pot 6, heat exchangers for district heating 8, heat supply network water supply line 4, valve 9.Heat exchangers for district heating 8 is the heating water that heat supply network is sent to for heating,
Heating steam is drawn gas from the higher steam turbine 18 of pressure, and with steam as thermal source, hot net water is heated to required water supply temperature
Degree, so as to realize cogeneration of heat and power.
In the present embodiment, during 6 heat accumulation of heat accumulation water pot, heat supply network recirculated water backwater to heat accumulation water pot 6 is drawn gas by steam turbine 18
Heated and be stored in heat accumulation water pot 6；During heat accumulation 6 heat release of water pot, the hot water in heat accumulation water pot 6 flows through pumps for hot water supply net 7,
Heater is passed through after being boosted through pump to heat supply network feed pipe heat supply.
In the present embodiment, it is series relationship between heat accumulation water pot 6 and electric heat-storage device 3, heat supply network circulation 16 is supplied
Water side ducts set lateral to be connected with the electric heat-storage device 3, and the water flowed back by heat user end heat supply network water return pipeline 5 passes through
After the heating of the one-level of heat accumulation water pot 6, flow through pumps for hot water supply net 7 and enter two grades of heating of the progress of heat exchangers for district heating 8, afterwards directly through heat
Net water supply line 4 is conveyed to after being conveyed to user, or the entrance progress three-level heating of electric heat-storage device 3 through heat supply network water supply line 4
User.
In the present embodiment, the main electrical scheme system includes the first generator 11, the second generator 12, transformer, power plant
Outlet bus 14, the first outlet 12, the second outlet 13 and connection power network.
In the present embodiment, the turbine steam extraction system 19 includes steam turbine 18 and its enters steam outlet pipe road.
In the present embodiment, a branch in the steam outlet pipe road of steam turbine 18 is connected with heat exchangers for district heating 8, conveys steam
Heated for heat exchangers for district heating 8, another branch is connected with heat accumulation water pot 6, conveying steam is that heat accumulation water pot 6 is heated.
The utility model combines solid electric heat-storage device and heat accumulation water pot, when user's thermic load is relatively low, heat accumulation
Unnecessary heating load is stored in tank body by water pot；When unit depth peak regulation is tried, solid electric heat-storage device brings into operation, solid
The need for electric heat-storage device, heat exchangers for district heating and heat accumulation water pot coordinated operation meet user's thermic load.Utilize the electric accumulation of heat dress of solid
Put and heat capacity supplemented with heat accumulation water pot, hot net water is heated using wind-resources or low price electric energy is abandoned, realize it is high-quality,
High economy heat supply, realizes energy cascade utilization.
The beneficial effects of the utility model are：
1）This patent combine solid electric heat-storage device high voltage, it is high-power, can accumulation of heat the characteristics of and heat accumulation water pot
The advantage of heat accumulation, solves the energy demand imbalance problem of electric energy and heat energy in region, and heat demand larger area is provided more
Many heats, increase area of heat-supply service.Using solid electric heat-storage device, it can be dissolved in night, low power consumption period or absorption
Wind power resources, carry out energy storage, meet depth peak regulation, unit heat supply is increased during peak load regulation using the heat accumulation of heat accumulation water pot
Amount, can ensure the heat capacity of unit, the depth peak regulation of unit is met again, while meeting the heat demand and power network of heat supply network
Depth peak regulation demand.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
5）Heat accumulation water pot can realize thermoelectricity decoupling operation in short term, improve unit operation flexibility.
Embodiment 2
A kind of solid electric heat-storage device combines heat accumulation water pot power network depth peak regulation system, including main electrical scheme system 17, electricity store
Hot systems 15, heat supply network circulation 16, bleeder steam system 19, electric heat storage system 15 are increased newly on power plant's outlet bus 14
One interval, be connected with step-down transformer 1, the other end of step-down transformer 1 is connected with the power supply buses of electric heat-storage device 3, one or
Multiple electric heat-storage devices 3 are connected on electric accumulation of heat bus 2；In the water supply side ducts or backwater side ducts of heat supply network circulation 16
Lateral is set, is connected with the electric heat-storage device 3, heat supply network recirculated water is supplied after one or more heating devices heats
To heat user.Wherein, electric accumulation of heat refers to the various equipment and system for carrying out energy reserve as the energy using electricity.
In the present embodiment, the electric heat-storage device 3 includes solid type electric heat-storage device.
In the present embodiment, the solid type electric heat-storage device includes the electric heat storage boiler of solid type.Solid type electricity heat accumulating pan
Stove has sufficiently large energy-storage system, can be at night, and the period of low power consumption carries out energy storage, and on daytime, is heated, supplied
Can, this advantage solves the problem of heating and wind-powered electricity generation low ebb are dissolved simultaneously.Solid type electricity accumulation of heat peak adjusting device have high voltage,
It is high-power, can accumulation of heat the characteristics of.
In the present embodiment, the electric heat-storage device 3 is opened according to the supporting setting GIS switchgears of actual requirement of engineering or bus
Close equipment.
In the present embodiment, 10 ~ 66kV of the solid type electric heat-storage device voltage class ranges
In the present embodiment, 10 ~ 100MW of the solid type electric heat-storage device power bracket.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS switchgears, electric heat-storage device 3 according to actual work
Journey needs to use steel-cored aluminium strand or cable connection.
In the present embodiment, the heat supply network circulation 16 includes heat supply network water return pipeline 5, circulation pump of heat-supply network 7, heat accumulation
Water pot 6, heat exchangers for district heating 8, heat supply network water supply line 4, valve 9.Heat exchangers for district heating 8 is the heating water that heat supply network is sent to for heating,
Heating steam is drawn gas from the higher steam turbine 18 of pressure, and with steam as thermal source, hot net water is heated to required water supply temperature
Degree, so as to realize cogeneration of heat and power.
In the present embodiment, during 6 heat accumulation of heat accumulation water pot, heat supply network recirculated water backwater to heat accumulation water pot 6 is drawn gas by steam turbine 18
Heated and be stored in heat accumulation water pot 6；During heat accumulation 6 heat release of water pot, the hot water in heat accumulation water pot 6 flows through circulation pump of heat-supply network
7, heater is passed through after being boosted through pump to heat supply network feed pipe heat supply.
In the present embodiment, it is parallel relationship, heat supply network circulation 16 times between heat accumulation water pot 6 and electric heat-storage device 3
Water side ducts set lateral to be connected with the electric heat-storage device 3, and heat supply network recirculated water is partly into the heat accumulation water pot 6 of bypass
Heating, remainder flows through electric heat-storage device 3 and heated, and last whole hot water enters after heat exchangers for district heating 8 is heated to supply water through heat supply network
Pipeline 4 is supplied to heat user.
In the present embodiment, the main electrical scheme system includes the first generator 11, the second generator 12, transformer, power plant
Outlet bus 14, the first outlet 12, the second outlet 13 and connection power network.
In the present embodiment, the turbine steam extraction system 19 includes steam turbine 18 and its enters steam outlet pipe road.
In the present embodiment, a branch in the steam outlet pipe road of steam turbine 18 is connected with heat exchangers for district heating 8, conveys steam
Heated for heat exchangers for district heating 8, another branch is connected with heat accumulation water pot 6, conveying steam is that heat accumulation water pot 6 is heated.
The utility model combines solid electric heat-storage device and heat accumulation water pot, when user's thermic load is relatively low, heat accumulation
Unnecessary heating load is stored in tank body by water pot；When unit depth peak regulation is tried, solid electric heat-storage device brings into operation, solid
The need for electric heat-storage device, heat exchangers for district heating and heat accumulation water pot coordinated operation meet user's thermic load.Utilize the electric accumulation of heat dress of solid
Put and heat capacity supplemented with heat accumulation water pot, hot net water is heated using wind-resources or low price electric energy is abandoned, realize it is high-quality,
High economy heat supply, realizes energy cascade utilization.
The beneficial effects of the utility model are：
1）This patent combine solid electric heat-storage device high voltage, it is high-power, can accumulation of heat the characteristics of and heat accumulation water pot
The advantage of heat accumulation, solves the energy demand imbalance problem of electric energy and heat energy in region, and heat demand larger area is provided more
Many heats, increase area of heat-supply service.Using solid electric heat-storage device, it can be dissolved in night, low power consumption period or absorption
Wind power resources, carry out energy storage, meet depth peak regulation, unit heat supply is increased during peak load regulation using the heat accumulation of heat accumulation water pot
Amount, can ensure the heat capacity of unit, the depth peak regulation of unit is met again, while meeting the heat demand and power network of heat supply network
Depth peak regulation demand.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
5）Heat accumulation water pot can realize thermoelectricity decoupling operation in short term, improve unit operation flexibility.Although referring particularly to
The utility model has shown and described in its preferred embodiment, it will be appreciated by those skilled in the art that form can be made
With the various changes in details without departing from the scope of the present utility model described in appended claims.Above in association with this reality
It is described in detail with new specific embodiment, but is not to limitation of the present utility model.Every foundation the utility model
Technical spirit to any simple modification made for any of the above embodiments, still fall within the scope of technical solutions of the utility model.
Claims (15)
1. a kind of solid electric heat-storage device combines heat accumulation water pot power network depth peak regulation system, including main electrical scheme system（17）, electricity store
Hot systems（15）, heat supply network circulation（16）, turbine steam extraction system（19）, it is characterised in that：Electric heat storage system（15）
Power plant's outlet bus（14）A upper newly-increased interval, with step-down transformer（1）Connection, step-down transformer（1）The other end stores with electricity
Thermal（3）Power supply buses are connected, one or more electric heat-storage devices（3）It is connected on power supply buses；In heat supply network circulating water
System（16）Water supply side ducts or backwater side ducts set lateral, with the electric heat-storage device（3）Connection, heat supply network recirculated water
Supplied after one or more heating devices heats to heat user.
2. solid electric heat-storage device according to claim 1 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The electric heat-storage device（3）Including solid type electric heat-storage device.
3. solid electric heat-storage device according to claim 2 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The solid type electric heat-storage device includes the electric heat storage boiler of solid type.
4. solid electric heat-storage device according to claim 2 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The electric heat-storage device（3）According to the supporting setting GIS switchgears of actual requirement of engineering or bus switchgear.
5. solid electric heat-storage device according to claim 2 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：10 ~ 66kV of the solid type electric heat-storage device voltage class ranges.
6. solid electric heat-storage device according to claim 2 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：10 ~ 100MW of the solid type electric heat-storage device power bracket.
7. the solid electric heat-storage device joint heat accumulation water pot power network depth peak regulation system of any one according to claim 1 ~ 6
System, it is characterised in that：Newly-increased interval, step-down transformer（1）, GIS switchgears, electric heat-storage device（3）Between according to Practical Project
Need to use steel-cored aluminium strand or cable connection.
8. solid electric heat-storage device according to claim 1 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The heat supply network circulation includes heat supply network water supply line（4）, heat supply network water return pipeline（5）, heat accumulation water pot（6）, heat supply network circulation
Pump（7）, heat exchangers for district heating（8）, valve（9）And its connecting pipe.
9. solid electric heat-storage device according to claim 8 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：Heat accumulation water pot（6）During heat accumulation, heat supply network recirculated water backwater to heat accumulation water pot（6）, by steam turbine（18）Draw gas and heated and deposited
Storage is in heat accumulation water pot（6）In；Heat accumulation water pot（6）During heat release, heat accumulation water pot（6）In hot water flow through pumps for hot water supply net（7）, through pump
Heater is passed through after boosting to heat supply network feed pipe heat supply.
10. solid electric heat-storage device according to claim 1 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：Heat accumulation water pot（6）With electric heat-storage device（3）Between can be with series or in parallel.
11. solid electric heat-storage device according to claim 10 combines heat accumulation water pot power network depth peak regulation system, its feature
It is：Heat accumulation water pot（6）With electric heat-storage device（3）Between when connecting, heat supply network circulation（16）Water supply side ducts, which are set, divides
Branch pipe(tube) and the electric heat-storage device（3）Connection, by heat user end heat supply network water return pipeline（5）The water of backflow passes through heat accumulation water pot
（6）After one-level heating, pumps for hot water supply net is flowed through（7）Into heat exchangers for district heating（8）Two grades of heating are carried out, afterwards directly through heat supply network
Water supply line（4）User is conveyed to, or enters electric heat-storage device（3）Carry out after three-level heating through heat supply network water supply line（4）It is defeated
Give user.
12. solid electric heat-storage device according to claim 10 combines heat accumulation water pot power network depth peak regulation system, its feature
It is：Heat accumulation water pot（6）With electric heat-storage device（3）Between it is in parallel when, heat supply network circulation（16）Backwater side ducts, which are set, divides
Branch pipe(tube) and the electric heat-storage device（3）Connection, heat supply network recirculated water is partly into the heat accumulation water pot of bypass（6）Heating, remaining
Part flows through electric heat-storage device（3）Heating, last whole hot water enters heat exchangers for district heating（8）Through heat supply network water supply line after heating
（4）Supply to heat user.
13. solid electric heat-storage device according to claim 1 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The main electrical scheme system includes the first generator（11）, the second generator（10）, transformer, power plant's outlet bus（14）,
One outlet（13）, the second outlet（12）And connection power network.
14. solid electric heat-storage device according to claim 1 combines heat accumulation water pot power network depth peak regulation system, its feature exists
In：The turbine steam extraction system（19）Including steam turbine（18）And its enter steam outlet pipe road.
15. solid electric heat-storage device according to claim 14 combines heat accumulation water pot power network depth peak regulation system, its feature
It is：The steam turbine（18）One branch in steam outlet pipe road and heat exchangers for district heating（8）Connection, conveying steam is heat exchangers for district heating
（8）Heating, another branch and heat accumulation water pot（6）Connection, conveying steam is heat accumulation water pot（6）Heating.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611169439 | 2016-12-16 | ||
| CN2016111694392 | 2016-12-16 | ||
| CN201720050048 | 2017-01-16 | ||
| CN2017200500482 | 2017-01-16 |
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| Publication Number | Publication Date |
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| CN206386989U true CN206386989U (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720093990.7U Active CN206386989U (en) | 2016-12-16 | 2017-01-24 | Solid electric heat-storage device combines heat accumulation water pot power network depth peak regulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692352A (en) * | 2018-08-17 | 2018-10-23 | 国电龙源电力技术工程有限责任公司 | Heating system and method suitable for steam power plant's peak tune |
| CN108775612A (en) * | 2018-08-20 | 2018-11-09 | 天津津电供电设计所有限公司 | Based on the active peak regulation system of solid heat accumulation and electric system |
| CN110631112A (en) * | 2019-09-11 | 2019-12-31 | 上海发电设备成套设计研究院有限责任公司 | Steam energy storage peak shaving system and method for heat supply unit |
| CN114017828A (en) * | 2021-11-09 | 2022-02-08 | 国网山东省电力公司电力科学研究院 | Emergency heat supply system and method for nuclear power unit |
-
2017
- 2017-01-24 CN CN201720093990.7U patent/CN206386989U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692352A (en) * | 2018-08-17 | 2018-10-23 | 国电龙源电力技术工程有限责任公司 | Heating system and method suitable for steam power plant's peak tune |
| CN108775612A (en) * | 2018-08-20 | 2018-11-09 | 天津津电供电设计所有限公司 | Based on the active peak regulation system of solid heat accumulation and electric system |
| CN110631112A (en) * | 2019-09-11 | 2019-12-31 | 上海发电设备成套设计研究院有限责任公司 | Steam energy storage peak shaving system and method for heat supply unit |
| CN110631112B (en) * | 2019-09-11 | 2023-11-28 | 上海发电设备成套设计研究院有限责任公司 | Steam energy storage peak shaving system and method for heat supply unit |
| CN114017828A (en) * | 2021-11-09 | 2022-02-08 | 国网山东省电力公司电力科学研究院 | Emergency heat supply system and method for nuclear power unit |
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Address after: 100176 Beijing Tongzhou District Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 hospital 12 Building 2 floors 201 rooms. Patentee after: Hep Energy and Environment Technology Co.,Ltd. Patentee after: HEBEI ELECTRIC POWER DESIGN & Research Institute Address before: 100176 Beijing Tongzhou District Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 hospital 12 Building 2 floors 201 rooms. Patentee before: HEPU HEATING POWER DEVELOPMENT Co. Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute Address after: 100176 Beijing Tongzhou District Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 hospital 12 Building 2 floors 201 rooms. Patentee after: HEPP Energy Environment Technology Co.,Ltd. Patentee after: HEBEI ELECTRIC POWER DESIGN & Research Institute Address before: 100176 Beijing Tongzhou District Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 hospital 12 Building 2 floors 201 rooms. Patentee before: Hep Energy and Environment Technology Co.,Ltd. Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
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