CN108302590A - Heat supply network user terminal steam supplementary heating system based on light-electricity complementary and control method - Google Patents
Heat supply network user terminal steam supplementary heating system based on light-electricity complementary and control method Download PDFInfo
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- CN108302590A CN108302590A CN201610880367.6A CN201610880367A CN108302590A CN 108302590 A CN108302590 A CN 108302590A CN 201610880367 A CN201610880367 A CN 201610880367A CN 108302590 A CN108302590 A CN 108302590A
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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
- F24D1/00—Steam central heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The heat supply network user terminal steam supplementary heating system based on light-electricity complementary that present invention is disclosed a kind of, including：Heat-conducting medium circulation loop, including：Heat-conducting medium circulation pipe, heat-conducting medium circulating pump, solar-heating device, electric heater unit, storage thermal, steam superheater, heat-conducting medium circulation pipe connect solar-heating device, electric heater unit, the shell side for storing thermal and steam superheater；Steam circuit, including：Steam is sent into pipe, the first triple valve, steam concurrent heating input pipe, steam concurrent heating efferent duct, the second triple valve, steam and sends out pipe and vapor communication pipe；Control loop, including：First temperature sensor, second temperature sensor and control device, control device carries out being turned on or off operation according to the first temperature sensor and the temperature of second temperature sensor detection to heat-conducting medium circulating pump and electric heater unit, and the valve of the first triple valve and the second triple valve is switched over, to control the circulation path of steam.
Description
Technical field
The present invention relates to the present invention relates to heat supply network user terminal vapor (steam) temperature control technologies, more particularly to based on light-electricity complementary
Heat supply network user terminal work hot repair fills heating system and control method.
Background technology
A kind of high efficient energy sources mode of production of the cogeneration of heat and power as thermal energy and electric energy Joint Production is the crowd in heat supply network user
More industrial enterprises provide the production heat source of low cost.Many heat supply network users using industrial steam as it by mainly giving birth at present
The mode of heat production source promotes the economic benefit of its production.However for some productions stringent to vapor (steam) temperature parameter request
Journey, unnecessary economic loss can be caused instead as supplying heat source by being unsatisfactory for the industrial steam of technological temperature requirement.
Solar energy thermal conversion system technology is more mature at present, and mating storage thermal etc. has constituted complete skill
Art system.Solar energy optical-thermal transformation technology is also related in steam heating art, and mostly source heat supply.But heat supply network is used
Family end, due to industrial steam parameter fluctuation and heat-net-pipeline along journey heat loss, it is likely that it is up to standard to there is source temperature parameter
But the nonconforming situation of the temperature parameter at user is reached, this is that source is very rambunctious, is needed from user terminal supplementary heating
Angle solve the problems, such as this.
Therefore, in order to solve problem above, energy-efficient user terminal supplementary heating system and suitable control method have
It waits for further studying.
Invention content
The present invention proposes a kind of heat supply network user terminal steam supplementary heating system based on light-electricity complementary, including：
Heat-conducting medium circulation loop, including：Heat-conducting medium circulation pipe, heat-conducting medium circulating pump, solar-heating device, electricity
Heating device, storage thermal, steam superheater, heat-conducting medium circulation pipe connect solar-heating device, electric heater unit, storage
Heat-conducting medium circulating pump, heat-conducting medium circulating pump are arranged on heat-conducting medium circulation pipe for the shell side of heat-releasing device and steam superheater
Driving heat-conducting medium flows in heat-conducting medium circulation pipe, followed by solar-heating device, electric heater unit, storage hot charging
The shell side with steam superheater is set, in solar-heating device, electric heater unit, the shell side for storing thermal and steam superheater
Between realize heat transmit；
Steam circuit, including：Steam is sent into pipe, the first triple valve, steam concurrent heating input pipe, steam concurrent heating output
Pipe, the second triple valve, steam send out pipe and vapor communication pipe, and the first end connection steam inlet that steam is sent into pipe is steamed with inputting
Vapour, the second end that steam is sent into pipe are connected to the first of the first triple valve, and second mouthful of the first triple valve is defeated with steam concurrent heating
Entering the first end connection of pipe, the third mouth of the first triple valve is connected to the first end of vapor communication pipe, and the second of vapor communication pipe
End is connected to the third mouth of the second triple valve, and the second triple valve is also three-way solenoid valve, the first and steam of the second triple valve
Send out the first end connection of pipe, steam sends out the second end connection steam (vapor) outlet of pipe to export steam, and the second of the second triple valve
Mouth is connected to the second end of steam concurrent heating efferent duct, and the second end of steam concurrent heating input pipe and the tube-side inlet of steam superheater connect
Logical, the tube side outlet of steam superheater is connected to the first end of steam concurrent heating efferent duct；
Control loop, including：First temperature sensor, second temperature sensor and control device, the first temperature sensor
It is arranged in steam circuit, the first temperature sensor detects the temperature of steam, and second temperature sensor setting is situated between in heat conduction
In matter circulation loop, second temperature sensor detects the temperature of heat-conducting medium, control device and the first temperature sensor and second
Temperature sensor connects, and the temperature of the first temperature sensor and second temperature sensor detection is fed back to control device, controls
Device is also connected to heat-conducting medium circulating pump, electric heater unit, the first triple valve and the second triple valve, and control device is according to first
Temperature sensor and second temperature sensor detection temperature come to heat-conducting medium circulating pump and electric heater unit carry out open or
Person's shutoff operation, and the valve of the first triple valve and the second triple valve is switched over, to control the circulation path of steam.
Heat-conducting medium circulation loop uses conduction oil as heat-conducting medium.
Solar-heating device is groove type solar photothermal conversion system, and solar-heating device was mutual as that should be based on photoelectricity
The main heating plant of the heat supply network user terminal steam supplementary heating system of benefit, converts solar energy into thermal energy and is defeated by heat-conducting medium and follow
Heat-conducting medium in endless tube.
Electric heater unit is filled as the auxiliary heat supplying of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary
It sets, the heat-conducting medium for converting electrical energy into thermal energy and being defeated by heat-conducting medium circulation pipe.
Storage thermal uses fused salt as storage thermal medium, and the fused salt is the compound binary nitric acid fused salt of quartz sand.
First triple valve and the second triple valve are three-way solenoid valves.
The setting of first temperature sensor is sent into steam on pipe, and detection steam is sent into the temperature of the steam inputted in pipe.The
Two temperature sensors are arranged in storing thermal, the temperature of heat-conducting medium in detection storage thermal.
The present invention proposes a kind of control method of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary, to preceding
The heat supply network user terminal steam supplementary heating system based on light-electricity complementary stated is controlled, which includes：
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, simultaneously
The temperature for the storage thermal that second temperature sensor detects is higher than heat accumulation temperature, and control device closes electric heater unit, control
Device processed opens heat conductive circulation pump, and heat conductive circulation pump operating makes heat-conducting medium be recycled in heat-conducting medium circulation loop, the sun
The thermal energy of energy heating plant conversion is passed to the shell side of steam superheater, control via the heat-conducting medium in heat-conducting medium circulation pipe
Device processed controls the first triple valve and the second triple valve so that the first of the first triple valve is connected to second mouthful, the second threeway
The first of valve is connected to second mouthful, and the pipe of pipe, steam concurrent heating input pipe, steam superheater is sent into steam circuit with steam
The mode that journey, steam concurrent heating efferent duct, steam send out pipe is connected to, and heat-conducting medium flows through the shell side of steam superheater, and steam flows through
The tube side of steam superheater, heat-conducting medium and steam carry out heat exchange by steam superheater, further to steam by solar energy
Heating；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, simultaneously
The temperature for the storage thermal that second temperature sensor detects is less than heat accumulation temperature, and control device is closed heat conductive circulation pump, led
Deep fat stops recycling in heat-conducting medium circulation loop, and control device controls the first triple valve and the second triple valve so that the one or three
The first of port valve is connected to third mouth, and the first of the second triple valve is connected to third mouth, and steam circuit is sent with steam
Enter pipe, vapor communication pipe, steam send out pipe mode be connected to, steam is not passed through the tube side of steam superheater, heat-conducting medium and steaming
Without heat exchange between vapour；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is less than setting, simultaneously
The temperature for the storage thermal that second temperature sensor detects is higher than heat accumulation temperature, and control device closes electric heater unit, control
Device processed opens heat conductive circulation pump, and heat conductive circulation pump operating makes heat-conducting medium be recycled in heat-conducting medium circulation loop, the sun
The thermal energy of energy heating plant conversion is passed to the shell side of steam superheater, control via the heat-conducting medium in heat-conducting medium circulation pipe
Device processed controls the first triple valve and the second triple valve so that the first of the first triple valve is connected to second mouthful, the second threeway
The first of valve is connected to second mouthful, and the pipe of pipe, steam concurrent heating input pipe, steam superheater is sent into steam circuit with steam
The mode that journey, steam concurrent heating efferent duct, steam send out pipe is connected to, and heat-conducting medium flows through the shell side of steam superheater, and steam flows through
The tube side of steam superheater, conduction oil and steam carry out heat exchange by steam superheater, are heated steam to tie up by solar energy
Hold the stabilization of steam parameter；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is less than setting, simultaneously
The temperature for the storage thermal that second temperature sensor detects is less than heat accumulation temperature, and control device opens electric heater unit, electricity
It can be converted into thermal energy, control device opens heat conductive circulation pump, and the operating of heat conductive circulation pump is so that heat-conducting medium is recycled in heat-conducting medium
It is recycled in circuit, the thermal energy of electric heater unit conversion is passed to steam superheating via the heat-conducting medium in heat-conducting medium circulation pipe
The shell side of device, control device control the first triple valve and the second triple valve so that the first of the first triple valve and second mouthful of company
Logical, the first of the second triple valve is connected to second mouthful, and steam circuit is sent into pipe with steam, steam concurrent heating input pipe, is steamed
The mode that tube side, steam concurrent heating efferent duct, the steam of vapour superheater send out pipe is connected to, and heat-conducting medium flows through the shell of steam superheater
Journey, steam flow through the tube side of steam superheater, heat-conducting medium and steam and carry out heat exchange by steam superheater, by electric energy to steaming
Vapour heating is to maintain the stabilization of steam parameter, electric heater unit to maintain the temperature of storage thermal simultaneously.
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, simultaneously
The temperature for the storage thermal that second temperature sensor detects is less than safe temperature, and control device opens heat conductive circulation and pumps and open
Electric heater unit is opened, converting electrical energy into thermal energy by electric heater unit heats heat-conducting medium, and makes storage thermal temperature
It increases.
The heat supply network user terminal steam supplementary heating system based on light-electricity complementary of the present invention addresses steam from user terminal
The problem of temperature parameter deficiency, fast response time, variable element is adaptable, less energy consumption.The heat supply network user based on light-electricity complementary
Hold steam supplementary heating system using solar energy as main supplying heat source, electric heater unit auxiliary heat supplying had both realized cleaning energy
Source makes full use of, and also ensures the duration and stability of heat supply.By rational control method, ensureing vapor (steam) temperature ginseng
Under the premise of number meets the requirements and store thermal medium safety and stability, the use of high-grade electric energy is reduced, is filled as far as possible using illumination
Extra thermal energy when sufficient promotes steam quality.
Description of the drawings
Fig. 1 discloses the structural representation of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary of the present invention
Figure.
Specific implementation mode
The present invention proposes that a kind of heat supply network user terminal steam supplementary heating system based on light-electricity complementary, Fig. 1 disclose this hair
The bright heat supply network user terminal steam supplementary heating system based on light-electricity complementary.As shown in Figure 1, heat supply network that should be based on light-electricity complementary is used
Family end steam supplementary heating system includes：Heat-conducting medium circulation loop, steam circuit and control loop.
In Fig. 1, heat-conducting medium uses conduction oil, therefore the heat-conducting medium circulation loop is using conduction oil as leading
The circulation loop of thermal medium.Heat-conducting medium circulation loop using conduction oil as heat-conducting medium includes：Heat-conducting medium circulation pipe 1,
Heat-conducting medium circulating pump 2, solar-heating device 3, electric heater unit 4, storage thermal 5, steam superheater 6.Heat-conducting medium
Circulation pipe 1 connects solar-heating device 3, electric heater unit 4, the shell side for storing thermal 5 and steam superheater 6.Heat conduction is situated between
Heat-conducting medium circulating pump 2 is set on matter circulation pipe 1.Heat-conducting medium circulating pump 2 drives conduction oil to be flowed in heat-conducting medium circulation pipe 1
It is dynamic, followed by solar-heating device 3, electric heater unit 4, the shell side for storing thermal 5 and steam superheater 6, in the sun
It can realize that heat is transmitted between heating plant 3, electric heater unit 4, storage thermal 5 and the shell side of steam superheater 6.In Fig. 1,
Solar-heating device 3 is groove type solar photothermal conversion system, and solar-heating device 3 is as the warm based on light-electricity complementary
The main heating plant of network users end steam supplementary heating system, converts solar energy into thermal energy and is defeated by heat-conducting medium circulation pipe 1
Interior heat-conducting medium, such as conduction oil.Electric heater unit 4 is as the heat supply network user terminal steam supplementary heating based on light-electricity complementary
The auxiliary heat supplying device of system, the conduction oil for converting electrical energy into thermal energy and being defeated by heat-conducting medium circulation pipe 1.In solar charging
When sufficient, closing electric heater unit 4 can be selected to only have solar-heating can select open when solar energy deficiency
Electric heater unit 4 is opened, is supplemented using electric energy.Storage thermal 5 uses fused salt multiple as storage thermal medium, such as quartz sand
Close binary nitric acid fused salt.Fused salt carries out heat exchange with conduction oil.For example, low-temperature molten salt carries out heat exchange with high temperature heat conductive oil, it is complete
At heat accumulation.Alternatively, high-temperature molten salt carries out heat exchange with low temperature conduction oil, heat release is completed.
Steam circuit includes：Steam is sent into pipe 10, the first triple valve 11, steam concurrent heating input pipe 12, steam concurrent heating
Efferent duct 14, the second triple valve 15, steam send out pipe 16 and vapor communication pipe 13.The first end that steam is sent into pipe 10 is connected to steam
To input steam, the second end that steam is sent into pipe 10 is connected to entrance with the first of the first triple valve 11.First triple valve 11 is
Three-way solenoid valve.Second mouthful of first triple valve 11 is connected to the first end of steam concurrent heating input pipe 12, the first triple valve 11
Third mouth is connected to the first end of vapor communication pipe 13.The second end of vapor communication pipe 13 and the third mouth of the second triple valve 15 connect
It is logical.Second triple valve 15 is also three-way solenoid valve.The first end that the first of second triple valve 15 sends out pipe 16 with steam is connected to.
The second end that steam sends out pipe 16 is connected to steam (vapor) outlet to export steam.Second mouthful of second triple valve 15 is exported with steam concurrent heating
The second end of pipe 14 is connected to.The second end of steam concurrent heating input pipe 12 is connected to the tube-side inlet of steam superheater 6, steam superheating
The tube side outlet of device 6 is connected to the first end of steam concurrent heating efferent duct 14.Thus steam circuit is constituted.
Control loop includes：First temperature sensor 7, second temperature sensor 8 and control device 9.First temperature sensing
Device 7 is arranged in steam circuit, and the first temperature sensor 7 detects the temperature of steam.In Fig. 1, the first temperature sensor 7
Setting is sent into steam on pipe 10, and detection steam is sent into the temperature of the steam inputted in pipe 10.The setting of second temperature sensor 8 exists
In heat-conducting medium circulation loop, second temperature sensor 8 detects heat-conducting medium, such as the temperature of conduction oil.In Fig. 1, second
Temperature sensor 8 is arranged in storing thermal 5, the temperature of conduction oil in detection storage thermal 5.Control device 9 and first
Temperature sensor 7 and second temperature sensor 8 connect, the temperature quilt of the first temperature sensor 7 and the detection of second temperature sensor 8
Feed back to control device 9.As shown in Figure 1, control device 9 is also connected to heat-conducting medium circulating pump 2, electric heater unit the 4, the 1st
Port valve 11 and the second triple valve 15.The temperature that control device 9 is detected according to the first temperature sensor 7 and second temperature sensor 8
Heat-conducting medium circulating pump 2 and electric heater unit 4 are carried out be turned on or off operation, and to the first triple valve 11 and second
The valve of triple valve 15 switches over, to control the circulation path of steam.
The course of work of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary is as follows：
First temperature sensor 7 detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe 10 is higher than setting,
The temperature (temperature of fused salt in storage thermal 5) for the storage thermal 5 that second temperature sensor 8 detects simultaneously is higher than heat accumulation
Temperature.Then control device 9 closes electric heater unit 4, does not use electric energy and is converted into thermal energy, only passes through solar-heating device 3
Thermal energy is converted solar energy into, the quality of steam is further promoted using solar-heating.Control device 9 opens heat conductive circulation pump
2, heat conductive circulation pump 2, which operates, makes conduction oil be recycled in heat-conducting medium circulation loop, the thermal energy that solar-heating device 3 converts
The shell side of steam superheater 6 is passed to via the conduction oil in heat-conducting medium circulation pipe 1.Control device 9 controls the first threeway
Valve 11 and the second triple valve 15 so that the first of the first triple valve 11 is connected to second mouthful, the first of the second triple valve 15
It is connected to second mouthful, steam circuit is sent into pipe 10, steam concurrent heating input pipe 12, the tube side of steam superheater 6, steaming with steam
The mode that hot repair thermal output pipe 14, steam send out pipe 16 is connected to.Conduction oil flows through the shell side of steam superheater 6, and steam flows through steaming
The tube side of vapour superheater 6, conduction oil and steam carry out heat exchange by steam superheater 6.Steam is further added by solar energy
Heat.
First temperature sensor 7 detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe 10 is higher than setting,
The temperature (temperature of fused salt in storage thermal 5) for the storage thermal 5 that second temperature sensor 8 detects simultaneously is less than heat accumulation
Temperature.Control device 9 closes heat conductive circulation pump 2, and conduction oil stops recycling in heat-conducting medium circulation loop.Control device 9 controls
First triple valve 11 and the second triple valve 15 so that the first of the first triple valve 11 is connected to third mouth, the second triple valve 15
First be connected to third mouth, steam circuit with steam be sent into pipe 10, vapor communication pipe 13, steam send out pipe 16 side
Formula is connected to.Steam is not passed through the tube side of steam superheater 6, without heat exchange between conduction oil and steam.In this case, if
The temperature of thermal 5 is stored further below safe temperature, and what crystallizing occurred in the fused salt in storage thermal 5 in order to prevent asks
Topic, when the temperature for storing thermal 5 is less than safe temperature, control device 9 reopens heat conductive circulation pump 2 and opens electrical heating
Device 4 converts electrical energy into thermal energy to heat-conducting oil heating by electric heater unit 4, and storage 5 temperature of thermal is increased.
When the temperature of storage thermal 5 is increased to safe temperature or more, control device 9 closes heat conductive circulation pump 2 and electric heater unit 4.
First temperature sensor 7 detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe 10 is less than setting,
The temperature (temperature of fused salt in storage thermal 5) for the storage thermal 5 that second temperature sensor 8 detects simultaneously is higher than heat accumulation
Temperature.Then control device 9 closes electric heater unit 4, and thermal energy is converted into without using electric energy, only will by solar-heating device 3
Solar energy is converted into thermal energy, is heated to steam using solar-heating.Control device 9 opens heat conductive circulation pump 2, heat conduction
Circulating pump 2 operates so that conduction oil recycles in heat-conducting medium circulation loop, and the thermal energy that solar-heating device 3 converts is via leading
Conduction oil in thermal medium circulation pipe 1 is passed to the shell side of steam superheater 6.Control device 9 controls 11 He of the first triple valve
Second triple valve 15 so that the first of the first triple valve 11 is connected to second mouthful, the first and second of the second triple valve 15
Mouth connection, steam circuit are sent into pipe 10, steam concurrent heating input pipe 12, the tube side of steam superheater 6, steam concurrent heating with steam
The mode that efferent duct 14, steam send out pipe 16 is connected to.Conduction oil flows through the shell side of steam superheater 6, and steam flows through steam superheating
The tube side of device 6, conduction oil and steam carry out heat exchange by steam superheater 6.Steam is heated to maintain steam by solar energy
The stabilization of parameter.
First temperature sensor 7 detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe 10 is less than setting,
The temperature (temperature of fused salt in storage thermal 5) for the storage thermal 5 that second temperature sensor 8 detects simultaneously is less than heat accumulation
Temperature.Then control device 9 opens electric heater unit 4, and thermal energy is converted into using electric energy, logical in the thermal energy deficiency of solar energy conversion
Electric energy is crossed to provide the thermal energy of supplement.Control device 9 opens heat conductive circulation pump 2, and heat conductive circulation pump 2 operates so that conduction oil is being led
It is recycled in thermal medium circulation loop, the thermal energy that electric heater unit 4 converts is passed via the conduction oil in heat-conducting medium circulation pipe 1
To the shell side of steam superheater 6.Control device 9 controls the first triple valve 11 and the second triple valve 15 so that the first triple valve 11
First be connected to second mouthful, the first of the second triple valve 15 is connected to second mouthful, and steam circuit is sent into steam
The mode that pipe 10, steam concurrent heating input pipe 12, the tube side of steam superheater 6, steam concurrent heating efferent duct 14, steam send out pipe 16 connects
It is logical.Conduction oil flows through the shell side of steam superheater 6, and steam flows through the tube side of steam superheater 6, and conduction oil and steam pass through steam
Superheater 6 carries out heat exchange.Steam is heated to maintain the stabilization of steam parameter, electric heater unit 4 to maintain to store up simultaneously by electric energy
The temperature of heat-releasing device 5.
The heat supply network user terminal steam supplementary heating system based on light-electricity complementary of the present invention addresses steam from user terminal
The problem of temperature parameter deficiency, fast response time, variable element is adaptable, less energy consumption.The heat supply network user based on light-electricity complementary
Hold steam supplementary heating system using solar energy as main supplying heat source, electric heater unit auxiliary heat supplying had both realized cleaning energy
Source makes full use of, and also ensures the duration and stability of heat supply.By rational control method, ensureing vapor (steam) temperature ginseng
Under the premise of number meets the requirements and store thermal medium safety and stability, the use of high-grade electric energy is reduced, is filled as far as possible using illumination
Extra thermal energy when sufficient promotes steam quality.
Claims (9)
1. a kind of heat supply network user terminal steam supplementary heating system based on light-electricity complementary, which is characterized in that including：
Heat-conducting medium circulation loop, including：Heat-conducting medium circulation pipe, heat-conducting medium circulating pump, solar-heating device, electrical heating
Device, storage thermal, steam superheater, heat-conducting medium circulation pipe connect solar-heating device, electric heater unit, storage heat
Heat-conducting medium circulating pump, the driving of heat-conducting medium circulating pump are arranged on heat-conducting medium circulation pipe for the shell side of device and steam superheater
Heat-conducting medium flows in heat-conducting medium circulation pipe, followed by solar-heating device, electric heater unit, storage thermal and
The shell side of steam superheater, between solar-heating device, electric heater unit, storage thermal and the shell side of steam superheater
Realize that heat is transmitted；
Steam circuit, including：Steam is sent into pipe, the first triple valve, steam concurrent heating input pipe, steam concurrent heating efferent duct, the
Two triple valves, steam send out pipe and vapor communication pipe, and the first end that steam is sent into pipe is connected to steam inlet to input steam, steam
The second end for being sent into pipe is connected to the first of the first triple valve, second mouthful of the first triple valve and the of steam concurrent heating input pipe
One end is connected to, and the third mouth of the first triple valve is connected to the first end of vapor communication pipe, the second end of vapor communication pipe and second
The third mouth of triple valve is connected to, and the second triple valve is also three-way solenoid valve, and first and the steam of the second triple valve send out pipe
First end is connected to, and the second end that steam sends out pipe is connected to steam (vapor) outlet to export steam, second mouthful of the second triple valve and steam
The second end of concurrent heating efferent duct is connected to, and the second end of steam concurrent heating input pipe is connected to the tube-side inlet of steam superheater, steam
The tube side outlet of superheater is connected to the first end of steam concurrent heating efferent duct；
Control loop, including：First temperature sensor, second temperature sensor and control device, the setting of the first temperature sensor
In steam circuit, the first temperature sensor detects the temperature of steam, and second temperature sensor setting is followed in heat-conducting medium
In loop back path, second temperature sensor detects the temperature of heat-conducting medium, control device and the first temperature sensor and second temperature
Sensor connects, and the temperature of the first temperature sensor and second temperature sensor detection is fed back to control device, control device
It is also connected to heat-conducting medium circulating pump, electric heater unit, the first triple valve and the second triple valve, control device is according to the first temperature
Sensor and the temperature of second temperature sensor detection to heat-conducting medium circulating pump and electric heater unit are opened or are closed
Closed operation, and the valve of the first triple valve and the second triple valve is switched over, to control the circulation path of steam.
2. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that institute
Stating heat-conducting medium circulation loop uses conduction oil as heat-conducting medium.
3. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that institute
It is groove type solar photothermal conversion system to state solar-heating device, and solar-heating device is as the warm based on light-electricity complementary
The main heating plant of network users end steam supplementary heating system, converts solar energy into thermal energy and is defeated by heat-conducting medium circulation pipe
Heat-conducting medium.
4. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that electricity
Auxiliary heat supplying device of the heating device as the heat supply network user terminal steam supplementary heating system based on light-electricity complementary turns electric energy
The heat-conducting medium for turning to thermal energy and being defeated by heat-conducting medium circulation pipe.
5. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that storage
Heat-releasing device uses fused salt as storage thermal medium, and the fused salt is the compound binary nitric acid fused salt of quartz sand.
6. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that institute
It is three-way solenoid valve to state the first triple valve and the second triple valve.
7. the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as described in claim 1, which is characterized in that
The setting of first temperature sensor is sent into steam on pipe, and detection steam is sent into the temperature of the steam inputted in pipe；
Second temperature sensor is arranged in storing thermal, the temperature of heat-conducting medium in detection storage thermal.
8. a kind of control method of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary, which is characterized in that power
Profit requires the heat supply network user terminal steam supplementary heating system based on light-electricity complementary described in any one of 1-7 to be controlled, the control
Method processed includes：
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, while second
The temperature for the storage thermal that temperature sensor detects is higher than heat accumulation temperature, and control device closes electric heater unit, control dress
It sets and opens heat conductive circulation pump, so that heat-conducting medium recycles in heat-conducting medium circulation loop, solar energy supplies the operating of heat conductive circulation pump
The thermal energy of thermal conversion is passed to the shell side of steam superheater, control dress via the heat-conducting medium in heat-conducting medium circulation pipe
Set the first triple valve of control and the second triple valve so that the first of the first triple valve is connected to second mouthful, the second triple valve
First is connected to second mouthful, steam circuit with steam be sent into pipe, steam concurrent heating input pipe, steam superheater tube side,
The mode that steam concurrent heating efferent duct, steam send out pipe is connected to, and heat-conducting medium flows through the shell side of steam superheater, and steam flows through steam
The tube side of superheater, heat-conducting medium and steam carry out heat exchange by steam superheater, are further heated to steam by solar energy；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, while second
The temperature for the storage thermal that temperature sensor detects is less than heat accumulation temperature, and control device closes heat conductive circulation pump, conduction oil
Stop recycling in heat-conducting medium circulation loop, control device controls the first triple valve and the second triple valve so that the first triple valve
First be connected to third mouth, the first of the second triple valve is connected to third mouth, steam circuit with steam be sent into pipe,
The mode that vapor communication pipe, steam send out pipe is connected to, and steam is not passed through the tube side of steam superheater, between heat-conducting medium and steam
Without heat exchange；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is less than setting, while second
The temperature for the storage thermal that temperature sensor detects is higher than heat accumulation temperature, and control device closes electric heater unit, control dress
It sets and opens heat conductive circulation pump, so that heat-conducting medium recycles in heat-conducting medium circulation loop, solar energy supplies the operating of heat conductive circulation pump
The thermal energy of thermal conversion is passed to the shell side of steam superheater, control dress via the heat-conducting medium in heat-conducting medium circulation pipe
Set the first triple valve of control and the second triple valve so that the first of the first triple valve is connected to second mouthful, the second triple valve
First is connected to second mouthful, steam circuit with steam be sent into pipe, steam concurrent heating input pipe, steam superheater tube side,
The mode that steam concurrent heating efferent duct, steam send out pipe is connected to, and heat-conducting medium flows through the shell side of steam superheater, and steam flows through steam
The tube side of superheater, conduction oil and steam carry out heat exchange by steam superheater, are heated steam to maintain to steam by solar energy
The stabilization of vapour parameter；
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is less than setting, while second
The temperature for the storage thermal that temperature sensor detects is less than heat accumulation temperature, and control device opens electric heater unit, and electric energy turns
Thermal energy is turned to, control device opens heat conductive circulation pump, and heat conductive circulation pump operating makes heat-conducting medium in heat-conducting medium circulation loop
The thermal energy of middle cycle, electric heater unit conversion is passed to steam superheater via the heat-conducting medium in heat-conducting medium circulation pipe
Shell side, control device control the first triple valve and the second triple valve so that and the first of the first triple valve is connected to second mouthful, the
The first of two triple valves is connected to second mouthful, and steam circuit is sent into pipe, steam concurrent heating input pipe, steam superheating with steam
The mode that tube side, steam concurrent heating efferent duct, the steam of device send out pipe is connected to, and heat-conducting medium flows through the shell side of steam superheater, steams
Tube side of the steam flow through steam superheater, heat-conducting medium and steam carry out heat exchange by steam superheater, are added to steam by electric energy
Heat is to maintain the stabilization of steam parameter, electric heater unit to maintain the temperature of storage thermal simultaneously.
9. the control method of the heat supply network user terminal steam supplementary heating system based on light-electricity complementary as claimed in claim 8,
It is characterized in that,
First temperature sensor detects that steam is sent into the technological temperature that the vapor (steam) temperature inputted in pipe is higher than setting, while second
The temperature for the storage thermal that temperature sensor detects is less than safe temperature, and control device opens heat conductive circulation and pumps and open electricity
Heating device converts electrical energy into thermal energy by electric heater unit and is heated to heat-conducting medium, and storage thermal temperature is increased.
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