CN110388680A - A kind of conduction oil and fused salt capsule composite heat storage heating system and its method - Google Patents
A kind of conduction oil and fused salt capsule composite heat storage heating system and its method Download PDFInfo
- Publication number
- CN110388680A CN110388680A CN201910538281.9A CN201910538281A CN110388680A CN 110388680 A CN110388680 A CN 110388680A CN 201910538281 A CN201910538281 A CN 201910538281A CN 110388680 A CN110388680 A CN 110388680A
- Authority
- CN
- China
- Prior art keywords
- heat
- fused salt
- heat storage
- conduction oil
- heating system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/006—Central heating systems using heat accumulated in storage masses air heating system
- F24D11/008—Central heating systems using heat accumulated in storage masses air heating system with conventional supplementary heat source
-
- 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
-
- 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
- F24D19/08—Arrangements for drainage, venting or aerating
-
- 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
- F24D19/1084—Arrangement or mounting of control or safety devices for air heating systems
-
- 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
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a kind of conduction oils and fused salt capsule composite heat storage heating system and its method, including heat-conducting oil heating and hold over system, fused salt capsule regenerative structure, heating system and central processing unit；Central processing unit is connect with heating system and heat-conducting oil heating and hold over system respectively, fused salt capsule regenerative structure is capsule-type structure, multiple fused salt capsule regenerative structures are arranged in the heat storage can of heat-conducting oil heating and hold over system, heating system is used to carry out the heat-storage medium in heat storage can stability contorting and output that outlet condition is realized in heat exchange, and central processing unit is for realizing automatic control.The present invention is by organically combining conduction oil accumulation of heat and fused salt accumulation of heat, effectively improve the amount of stored heat of system, simultaneously by being rationally arranged, compared with traditional storage heating system, equipment needed for greatly reducing system, by setting central processing unit and corresponding control instrument, safe and reliable, the energy-efficient operating of whole system is realized.
Description
Technical field
The invention belongs to heat supply process fields, and in particular to conduction oil heat accumulation, fused salt under one kind " time-of-use tariffs " background
Capsule heat accumulation and corresponding heat release utilize device and method.
Background technique
With the development of national economy, the continuous improvement of living standards of the people, China's especially coastal area power structure
It is varied widely.On the one hand the problems such as it is insufficient that there is peak powers, on the other hand more excessive there is peak-valley difference, these
Contradictory appearance constrains the development of national economy again.For this purpose, on the one hand electric industry department accelerates the paces of power construction, another party
Face proposes the policy of " peak load shifting " to make full use of electric power resource, reduces electricity consumption peak-valley difference.Each province, city, regional electric industry at present
Department announces electricity consumption policy and " Peak-valley TOU power price " one after another, and the realization of " peak load shifting " is pushed with economic means.
Devoting Major Efforts To Developing valley power consumption enjoys low ebb electrovalence policy to the full, not only brings benefit to society, at the same to user with
Come economical.Start with from this thinking, to being heated using trough-electricity and accumulation of heat, peak value heat release this heat accumulating type system carry out
Technology analysis.And by econmics comparison, the appearance with " Peak-valley TOU power price " has been obtained, from the macro policy and use of country
The economic interests at family consider that the supply of trough-electricity unit accumulation of heat form has good and wide prospect, China development
Has feasibility and necessity.
High-temperature heat accumulation thermal power plant unit is that heat-storage medium is heated to high-temperature storage heat using night dip electricity, in electricity consumption height
The peak phase is discharged heat by self-con-tained unit on demand, the effect for having reached " peak load shifting ", reducing operating cost.High-temperature heat accumulation supplies
The important breakthrough of heat engine group technically is to add using solid heat accumulating and liquid heat accumulating integrated structure design
Heat, heat accumulation, heat exchange, heat supply and control function are combined, and a normal pressure thermal power plant unit is formed.Mainstream is led currently on the market
Hot oil hold over system and fused salt hold over system have the following problems:
1) heat-conducting oil heating system is complicated, and equipment usage amount is more.
The conduction oil accumulation of heat heat releasing system of current main-stream is mainly gas heat conducting oil boiler or electric-heating heat-conductive oil boiler,
Heat-conducting oil system process is substantially similar.First conduction oil is stored in head tank, then conduction oil is sent to electricity with circulating pump and is added
It is heated to after required temperature in hot device (or hot oil furnace) and is supplied to each heating equipment, conduction oil is excluded through gs-oil separator
It is returned again to after gas and impurity therein and continues to heat in electric heater, be achieved in and recycle.Its main equipment has note
The equipment such as oil pump, cryostat, head tank (expansion slot), gs-oil separator, circulating pump, electric heater (hot oil furnace), heat user.
2) fused salt heating circulation system process is complicated, high operation requirements.
Molten salt heating system is to be used as heat carrier to carry out between molten salt furnace and heating equipment after high-temperature heating fused salt
The heat transfer systems of heat cycles are mainly made of molten salt furnace, molten salt circulating pump, fused salt tank and some pipe line parts etc..
It is placed in underground to thermal, including molten salt furnace and fused salt storage tank, fused salt storage tank using fused salt as the industry of heat carrier, is melted
The fused salt inlet tube of salt furnace is connected with two pump for liquid salts in parallel being arranged in inside fused salt storage tank, the fused salt outlet of molten salt furnace
It is connected with heating equipment, the fused salt outlet of heating equipment is communicated with fused salt storage tank, and an electric heater built in fused salt storage tank, electricity adds
Hot device inlet and outlet are connected with thermal medium inlet pipe and thermal medium outlet pipe respectively, and the shell of molten salt furnace is vertical and cylindrical, burning
Device is placed in lower portion of furnace body.Device can be used as high temperature heat source use.
Molten salt heating system operational process is as follows: the salt-mixture of powdery being put into fused salt tank first, by being mounted on tank
Fused salt is heated to fusing point or more by the modes such as interior electric heating adjoining pipe, and reaching its viscosity can be recycled with molten salt circulating pump
Value.At the same time, blank pipe in molten salt furnace need to be preheated, to prevent fused salt from condensation cured occurring when flowing through cooling coil.Disk
After pipe preheating to a certain extent, molten salt circulating pump is opened, fused salt is sent into molten salt furnace and is heated, is heated to the molten of specific temperature
Salt is transported to heating equipment, after heat supply, then along the circulatory system flows back to fused salt tank, and the above process constantly recycles, and constitutes fused salt and adds
Hot systems.When system operation stops, whole fused salts will be flowed back in fused salt tank.
In traditional Molten salt heating system, fused salt cannot be solidified again, otherwise will be consumed after melting for the first time
Amount of heat melts fused salt again, causes heat waste.And whole system cannot achieve entirely in operation operating aspect
Automation control.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of conduction oil with
Fused salt capsule composite heat storage heating system and its method, the device are developed by combining the existing energy source configuration problem in China
Heat simultaneously accumulation of heat and this effective heat accumulating type system in peak value heat release using trough-electricity, completes " to move peak to fill out on electric power
Paddy ".
The invention adopts the following technical scheme:
A kind of conduction oil and fused salt capsule composite heat storage heating system, including heat-conducting oil heating and hold over system, fused salt glue
Capsule regenerative structure, heating system and central processing unit；Central processing unit respectively with heating system and heat-conducting oil heating and accumulation of heat system
System connection, fused salt capsule regenerative structure are capsule-type structure, and multiple fused salt capsule regenerative structures are arranged in heat-conducting oil heating and storage
In the heat storage can of hot systems, heating system is used to carry out the heat-storage medium in heat storage can heat exchange and realizes that stablizing for outlet condition is controlled
System and output, central processing unit is for realizing automatic control.
Specifically, heat-conducting oil heating and hold over system include filling pump, surge tank and nitrogen, filling pump and heat storage can connect
It connects, the exhaust line at the top of heat storage can divides two-way, connects nitrogen all the way, and another way is connect through surge tank with filling pump.
Further, liquid level automatic detection device, liquid level automatic detection device and central processing unit are provided in surge tank
Connection.
Specifically, heating system includes blower and heat exchanger, the input end connection of blower and heat exchanger, heat exchanger, which is arranged, to exist
In heat storage can, positioned at the top of fused salt capsule regenerative structure.
Further, heat exchanger is shell-and-tube heat exchanger, and the middle and upper part of heat storage can is arranged in, and fused salt capsule regenerative structure is set
It sets in the middle and lower part of heat storage can.
Further, heating system further includes air-supply bypass, and air-supply bypass connect cold for supplementing with the outlet of heat exchanger
Working medium is mixed with hot working fluid.
Specifically, fused salt capsule regenerative structure is arranged in conduction oil, capsule-type inside configuration is filled with fuse salt and stays
There is gap, surface is provided with fin structure.
Specifically, the axis in heat storage can along heat storage can is equipped with blender, the bottom of heat storage can is provided with electric heater,
Electric heater is connect by temperature-detecting device with central processing unit, and the exit of heat exchanger is provided with temperature monitoring, temperature
Monitor feeds back to central processing unit for that will export Temperature of Working, and central processing unit is controlled according to heat exchanger exit Temperature of Working
Blender.
Another technical solution of the invention is a kind of work side of conduction oil and fused salt capsule composite heat storage heating system
Method is first full of nitrogen in heat storage can；Conduction oil is delivered in heat storage can by filling pump, and the nitrogen in heat storage can passes through exhaust line
It enters the buffer tank；The electric heater of heat accumulation pot bottom begins to warm up accumulation of heat, during temperature-detecting device feeds back to temperature value
Central processor adjusts the revolving speed of blender in heat storage can；Conduction oil is in starting temperature-rise period, by surge tank by the water of generation
Steam, air and the discharge of low boiling point volatile matter；Low-temperature molten salt in fused salt capsule regenerative structure conducts heat with conduction oil, completes
Fused salt accumulation of heat；By adjusting the regulating valve between the blower of heating system and air-supply bypass, make to supplement cold working medium by bypassing and heat
Working medium is mixed；When oil storage tank starts the exothermic middle and later periods, outlet temperature is fed back to central processing unit by temperature monitoring, in
Central processor changes the convection transfer rate of conduction oil and convection bank by adjusting the revolving speed of blender, realizes outlet hot wind work
The control and output of condition.
Specifically, liquid level automatic detection device transmission signal is fed back to when the conduction oil in surge tank reaches setting value
Central processing unit, filling pump are started to work, and will be worked in the conduction oil injection heat storage can in surge tank.
Compared with prior art, the present invention at least has the advantages that
A kind of conduction oil of the present invention and fused salt capsule composite heat storage heating system, heat-conducting oil heating and hold over system avoid
The complexity of conventional thermal conductive heating system for oil reduces equipment usage amount in the case where meeting design requirement.Fused salt heating and hold over system
The drawbacks of having fully considered Molten salt heating system can effectively play fused salt latent heat using a kind of novel molten salt heat accumulation mode.
By auto-adjustment control blender in heating system, reaches and stablize external quantity of heat given up.
Further, heat-conducting oil heating and hold over system are deposited by the heat for converting conduction oil and fused salt for valley electricity
Storage is got up, and is released to heat user by working medium and is utilized.By conduction oil, fused salt composite heating accumulation of heat, system is substantially increased
Heat storage capacity.Further, the setting of liquid level automatic detection device can monitor the liquid level in surge tank, and sequencing is certainly
Dynamic control oiling pump work, to hot tank filling heat-conductive oil, and maintain in surge tank in hot tank conduction oil volume it is steady
It is fixed.
Further, air is passed through heat exchanger by blower by heating system, is had with conduction oil and heat pipe heat exchanging
There is the hot-air of equilibrium temperature for users to use.
Further, shell-and-tube heat exchanger has the advantages that energy-efficient that the coefficient of heat transfer is up to 6000~8000W/m2.k,
The high efficient heat exchanging of conduction oil and heat carrier can be achieved.Simultaneously because design simple and flexible, cheap, gas design cost is lower.
Further, blow bypass purpose be adjust air outlet Temperature of Working stabilization, prevent Temperature of Working to fluctuate
It is too big, it is unfavorable for the practical of heat user, while also avoiding air outlet temperature excessively high, causes energy dissipation in vain.
Further, by the way that fin is arranged, the heat exchange area of fused salt capsule reaches accumulation of heat requirement, can effectively exchange heat.
Fused salt capsule there are gap guarantee that volume change of the fused salt in accumulation of heat, exothermic process will not make fused salt capsule structure
At destruction.
Further, external by the way that blender is arranged, strengthen the heat exchange efficiency between working medium and heat can be made to stablize
Output.
The invention also discloses the working methods of low ebb electric-heating heat-conductive oil and fused salt composite heat storage heating system, by setting
Relevant temperature, liquid level examination and control instrument are set, central processing unit can analyze temperature, level parameter, automatically to whole system
Heat transfer oil flow, compressor flow, bypass air flow rate controlled, realize safe and reliable, the energy-efficient operating of system.
Further, it by liquid level regulation device, can realize effectively to hot tank filling heat-conductive oil to thermally conductive in surge tank
Effective recycling of oil, and maintain the stabilization in surge tank with conduction oil volume in hot tank.
In conclusion the present invention is by effectively improving system for conduction oil accumulation of heat and fused salt accumulation of heat combination
Amount of stored heat, while by being rationally arranged, compared with traditional storage heating system, equipment needed for greatly reducing system passes through
Central processing unit and corresponding control instrument are set, safe and reliable, the energy-efficient operating of whole system is realized.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is fused salt capsule structure schematic diagram.
Wherein: 1. filling pumps；2. surge tank；3. heat storage can；4. electric heater；5. blender；6. nitrogen；7. fused salt capsule
Regenerative structure；8. blower；9. heat exchanger.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side ", " one end ", " one side " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Referring to Fig. 1, a kind of conduction oil of the present invention and fused salt capsule composite heat storage heating system, including heat-conducting oil heating and
Hold over system, fused salt hold over system, heating system and central processing unit；Fused salt hold over system includes fused salt capsule regenerative structure 7,
Multiple fused salt capsule regenerative structures 7 are arranged in the heat storage can 3 of heat-conducting oil heating and hold over system, heating system and heat storage can 3
Connection, for carrying out stability contorting and the output that outlet condition is realized in heat exchange, central processing unit to the heat-storage medium in heat storage can
It connect respectively with heat-conducting oil heating and hold over system, fused salt hold over system and heating system for realizing automatic control.
Heat-conducting oil heating and hold over system include filling pump 1, surge tank 2, heat storage can 3, electric heater 4, blender 5, nitrogen
Gas 6；Heating system includes blower 8, heat exchanger 9 and air-supply bypass.
Filling pump 1 is connect with heat storage can 3, and heat exchanger 9 is arranged in heat storage can 3, positioned at the upper of fused salt capsule regenerative structure 7
Side, blower 8 are connect with the input end of heat exchanger 9, and the top of heat storage can 3 is connected with exhaust line, and exhaust line divides two-way, all the way
With the piping connection of nitrogen 6, another way is connect through surge tank 2 with filling pump 1, and liquid level is provided in surge tank 2 and detects dress automatically
It sets, liquid level automatic detection device is connect with central processing unit, and liquid level automatic detection device uses general industrial level gauging
Sensor is able to achieve the conversion of analog signal and digital signal and signal can be passed to central processing unit, and central processing unit is then
Using general industrial single-chip microcontroller.
Blender 5 is installed along the axis of heat storage can 3, blender 5 is located at heat exchanger 9 and top and fused salt capsule accumulation of heat knot
Electric heater 4 is arranged in the lower section of structure 7, the bottom of heat storage can 3, and electric heater 4 is connected by temperature-detecting device and central processing unit
It connects, for detecting the temperature of 4 surrounding conduction oil of electric heater, the exit of heat exchanger 9 is provided with temperature monitoring, temperature monitoring
Device is connect with central processing unit, and for monitoring the outlet Temperature of Working of heat exchanger 9, central processing unit is according to heat exchanger exit working medium
Temperature controls blender 5 and works, and temperature-detecting device is general industrial temperature sensor, by connecting with central processing unit
It is able to achieve and converts digital signal for analog signal in real time and pass to central processing unit, wait further order instruction.
During 3 conduction oil of heat storage can is exothermic, heat storage can 3 is equipped with the temperature inspection of monitoring heat exchanger exit Temperature of Working
Device is surveyed, while being furnished with bypass conduit in heating system.Since conduction oil is contacted with working medium, heat exchange user's working medium is changed
Heat.Initial stage Temperature of Working can be higher than design Temperature of Working, and outlet temperature is fed back to central processing unit by temperature-detecting device,
By adjusting the regulating valve between automatic control heating system main road and bypass, make to supplement cold working medium by bypassing and hot working fluid progress
Mixing, so that controlling outlet Temperature of Working reaches requirement.When heat storage can 3 starts the exothermic middle and later periods, since thermally conductive oil temperature drops
Low, heat transfer effect is poor, and outlet temperature is fed back to central processing unit by temperature-detecting device, to adjust auto-controlled motor
Revolving speed to adjust the revolving speed of blender 5, change the convection transfer rate of conduction oil and convection bank, strengthen convective heat transfer, together
When due between fused salt and conduction oil exist heat exchange, allow conduction oil to keep certain temperature for a long time, to realize outlet
The stability contorting of hot wind operating condition and output.
Preferably, heat exchanger 9 is shell-and-tube heat exchanger, and the middle and upper part of heat storage can 3 is arranged in.
Referring to Fig. 2, fused salt capsule regenerative structure 7 includes fused salt capsule, the surface of fused salt capsule is provided with fin structure,
There are gaps for fused salt capsule, and by the way that fin is arranged, the heat exchange area of fused salt capsule reaches accumulation of heat requirement, can effectively be changed
Heat.Fused salt capsule there are gap guarantee that volume change of the fused salt in accumulation of heat, exothermic process will not be to fused salt capsule knot
It is configured to destroy.
After heat accumulation is completed in low ebb electric heating, blower 8 blow and by the heat-storage medium in heat exchanger 9 and heat storage can 3 into
Row heat exchange, realizes stability contorting and the output of outlet condition.
The present invention is directed to the shortcomings that current accumulation of heat release device, using solid heat accumulating (fused salt) and liquid heat accumulating
(conduction oil) integrated structure design is because of its unique advantage, by the demand of suitable urban development, industry, it is civilian have it is very big
Application space.The technology can effectively simplify the complexity of liquid heat reservoir (conduction oil) and solid heat reservoir (fused salt)
Property, so that equipment operation is safer, stable, easy to operate.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of conduction oil of the present invention and the working method of fused salt capsule composite heat storage heating system are as follows:
Heat-conducting oil heating and hold over system before starting work, are first full of nitrogen 6 in heat storage can 3, avoid inside container with
Air directly contacts and causes to aoxidize；Conduction oil is delivered in heat storage can 3 by filling pump 1, and the nitrogen 6 in heat storage can 3, nitrogen is discharged
Gas 6 enters in surge tank 2 by exhaust line, and is further discharged into atmosphere；It can be closed according to the practical swell increment of conduction oil
Reason adjustment conduction oil injection flow, so that there are enough conduction oil expansion spaces in heat storage can 3.
When conduction oil begins to warm up accumulation of heat, will appear localized hyperthermia around electric heater 4 leads to thermally conductive oil decomposition, temperature inspection
It surveys device and temperature value is fed back into central processing unit adjusting 5 revolving speed of blender, so that the high temperature around electric heater be promoted to lead
The flowing of hot oil, and then sufficiently exchanged heat with low temperature conduction oil.
Conduction oil especially puts into operation, in starting temperature-rise period due to originals such as conduction oil itself residual moistures for the first time
Cause can generate a large amount of water vapours, air and other low boiling point volatile matters, will by the air pipe on surge tank 2 by exhaust line
Gas is discharged to outside system, to ensure that system normal reliable is run.
Conduction oil volume expansion and generates a small amount of oil vapour in temperature-rise period, it is necessary to be discharged to this, Cai Nengbao
Demonstrate,prove the normal circulation of organic heat carrier in systems.Oil vapour enters surge tank 2 by exhaust pipe, due to having one in surge tank 2
Quantitative low temperature conduction oil, so oil vapour can condense out in low temperature conduction oil, when the conduction oil in surge tank 2 reaches one
After quantitative, liquid level automatic detection device transmits signal, and liquid level automatic detection device is by liquid level numeric feedback to central processing
Device, filling pump are started to work, and will be worked in more conduction oil injection heat storage cans in surge tank.
In 4 course of work of electric heater, the temperature-detecting device near electric heater 4 is detected automatically around electric heater 4
The temperature of conduction oil, when conduction oil temperature ramp becomes larger, temperature-detecting device to central processing unit, stirs numeric feedback
The start-up operation of device 5 is mixed, so that the high temperature heat conductive oil around electric heater 4 is sufficiently mixed with low temperature conduction oil, conduction oil heat point
Cloth is uniform, and 4 heating rate of electric heater stabilization is needing in range.
In fused salt heating and hold over system, during conduction oil starts to warm up, due to all leachings of fused salt capsule structure 7
It conducts heat in conduction oil, therefore between fused salt and conduction oil, so that the temperature of fused salt increases, reaches the function of heat accumulation.Benefit
Heat accumulation heat release is carried out with fused salt capsule, considerably increases heat exchange specific surface area, improves heat transfer effect, and wing is set on its surface
Chip architecture further increases its exchange capability of heat.Fused salt capsule there are gap, be expansion of the fused salt in heating and cooling and
Contraction creates steric requirements.Compared with traditional tubular type fused salt memory structure, in maintenance, this fused salt capsule is more just
In replacement.
From the point of view of current research, using solid heat accumulating (fused salt) and liquid heat accumulating (conduction oil) integration knot
Structure design is the demand for being suitble to urban development, has very big demand space industrial, civilian.Liquid can effectively be simplified
The complexity of heat reservoir (conduction oil) and solid heat reservoir (fused salt), so that equipment operation is safer, stable, easy to operate.
Advantages of the present invention, which sums up, mainly the following:
(1) complexity for avoiding heat-conducting oil heating system reduces equipment usage amount in the case where meeting design requirement.
The usage amount of equipment is greatly reduced in the present invention, capital equipment is filling pump, heat storage can, (volume is very for dashpot
It is small, collect oil vapour and discharge air and water vapour).When conduction oil is in the heating water smoking, since conduction oil itself remains water
Point etc. reasons, a large amount of water vapours, air and other low boiling point volatile matters can be generated, by exhaust pipe, by the atmosphere on surge tank
Gas is discharged to outside system by pipe, to ensure that system normal reliable is run.
When volume will expand conduction oil in temperature-rise period, can be reasonably adjusted according to the swell increment actual conditions of conduction oil
Conduction oil injection flow, there are the expansion spaces of conduction oil in heat storage can.A small amount of oil vapour can be generated in expansion process, it must
This must be discharged, just can guarantee the normal circulation of conduction oil in systems.Oil vapour enters surge tank by exhaust pipe,
Due to there is a certain amount of low temperature conduction oil in surge tank, so oil vapour can condense out in low temperature conduction oil, work as surge tank
In conduction oil reach a certain amount of after, liquid level automatic detection device transmits signal, and leve monitor is by liquid level numeric feedback
To central processing unit, filling pump is started to work, and will be worked in more conduction oil injection heat storage cans in surge tank.
Therefore it designs through the invention, reduces the use of head tank, status slot, gs-oil separator, oil circulating pump, make to set
It is standby to greatly simplify, it runs simple to operation, it can be achieved that automatic operation.
(2) complexity of Molten salt heating system is avoided, system operation is controllable
During conduction oil starts to warm up, since fused salt capsule is totally submerged in conduction oil, fused salt with it is thermally conductive
It conducts heat between oil, so that the temperature of fused salt increases, reaches the function of heat accumulation.When heat is released to heating medium in conduction oil
Afterwards, the fused salt in fused salt capsule further rejects heat to conduction oil, and thermally conductive oil temperature further increases.Fused salt is the same as thermally conductive
The mode of oily common accumulation of heat not only considerably increases the heat storage capacity of system, and the parameter by adjusting conduction oil can be convenient
Realize the state modulator to fused salt.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of conduction oil and fused salt capsule composite heat storage heating system, which is characterized in that including heat-conducting oil heating and accumulation of heat system
System, fused salt capsule regenerative structure (7), heating system and central processing unit；Central processing unit respectively with heating system and conduction oil
Heating and hold over system connection, fused salt capsule regenerative structure (7) are capsule-type structure, and multiple fused salt capsule regenerative structures (7) set
It sets in the heat storage can (3) of heat-conducting oil heating and hold over system, heating system is used to carry out the heat-storage medium in heat storage can (3)
Stability contorting and the output of outlet condition are realized in heat exchange, and central processing unit is for realizing automatic control.
2. conduction oil according to claim 1 and fused salt capsule composite heat storage heating system, which is characterized in that conduction oil adds
Heat and hold over system include filling pump (1), surge tank (2) and nitrogen (6), and filling pump (1) is connect with heat storage can (3), heat storage can
(3) exhaust line at the top of divides two-way, connects all the way nitrogen (6), and another way is connect through surge tank (2) with filling pump (1).
3. conduction oil according to claim 2 and fused salt capsule composite heat storage heating system, which is characterized in that surge tank
(2) it is provided with liquid level automatic detection device in, liquid level automatic detection device is connect with central processing unit.
4. conduction oil according to claim 1 or 2 and fused salt capsule composite heat storage heating system, which is characterized in that heat supply
System includes blower (8) and heat exchanger (9), and blower (8) is connect with the input end of heat exchanger (9), and heat exchanger (9) is arranged in heat accumulation
In tank (3), it is located at the top of fused salt capsule regenerative structure (7).
5. conduction oil according to claim 4 and fused salt capsule composite heat storage heating system, which is characterized in that heat exchanger
It (9) is shell-and-tube heat exchanger, setting is arranged in the middle and upper part of heat storage can (3), fused salt capsule regenerative structure (7) in heat storage can (3)
Middle and lower part.
6. conduction oil according to claim 4 and fused salt capsule composite heat storage heating system, which is characterized in that heating system
It further include air-supply bypass, air-supply bypass is connect with the outlet of heat exchanger (9) to be mixed for supplementing cold working medium with hot working fluid.
7. conduction oil according to claim 1 and fused salt capsule composite heat storage heating system, which is characterized in that fused salt capsule
Regenerative structure (7) is arranged in conduction oil, and for capsule-type inside configuration filled with fuse salt and there are gap, surface is provided with fin
Structure.
8. conduction oil according to claim 1 and fused salt capsule composite heat storage heating system, which is characterized in that heat storage can
(3) axis in along heat storage can (3) is equipped with blender (5), and the bottom of heat storage can (3) is provided with electric heater (4), electric heating
Device (4) is connect by temperature-detecting device with central processing unit, and the exit of heat exchanger (9) is provided with temperature monitoring, temperature
Monitor feeds back to central processing unit for that will export Temperature of Working, and central processing unit is controlled according to heat exchanger exit Temperature of Working
Blender (5).
9. a kind of working method of conduction oil and fused salt capsule composite heat storage heating system according to claim 2, feature
It is, is first full of nitrogen (6) in heat storage can (3)；Conduction oil is delivered in heat storage can (3) by filling pump (1), in heat storage can (3)
Nitrogen (6) enter in surge tank (2) by exhaust line；The electric heater (4) of heat storage can (3) bottom begins to warm up accumulation of heat,
Temperature value is fed back to the revolving speed that central processing unit adjusts blender (5) in heat storage can (3) by temperature-detecting device；Conduction oil exists
Start in temperature-rise period, the water vapour of generation, air and low boiling point volatile matter are discharged by surge tank (2)；Fused salt capsule stores
Low-temperature molten salt in heat structure (7) conducts heat with conduction oil, completes fused salt accumulation of heat；By the blower (8) for adjusting heating system
With the regulating valve between air-supply bypass, makes to supplement cold working medium and mixed by bypass with hot working fluid；When oil storage tank (3) start heat release
Middle and later periods, outlet temperature feeds back to central processing unit by temperature monitoring, and central processing unit is by adjusting turning for blender (5)
Speed changes the convection transfer rate of conduction oil and convection bank, realizes the control and output of outlet hot wind operating condition.
10. conduction oil according to claim 9 and fused salt capsule composite heat storage heating system and its method, feature exist
In when the conduction oil in surge tank (2) reaches setting value, liquid level automatic detection device transmission signal feeds back to central processing
Device, filling pump (1) are started to work, and will be worked in conduction oil injection heat storage can (3) in surge tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538281.9A CN110388680A (en) | 2019-06-20 | 2019-06-20 | A kind of conduction oil and fused salt capsule composite heat storage heating system and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538281.9A CN110388680A (en) | 2019-06-20 | 2019-06-20 | A kind of conduction oil and fused salt capsule composite heat storage heating system and its method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110388680A true CN110388680A (en) | 2019-10-29 |
Family
ID=68285539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910538281.9A Pending CN110388680A (en) | 2019-06-20 | 2019-06-20 | A kind of conduction oil and fused salt capsule composite heat storage heating system and its method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110388680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043758A (en) * | 2019-12-06 | 2020-04-21 | 上海中如智慧能源集团有限公司 | Heat storage type air heater |
| CN113340141A (en) * | 2021-05-19 | 2021-09-03 | 格力电器(南京)有限公司 | Heat preservation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218554Y (en) * | 2008-05-15 | 2009-04-08 | 梁保军 | Electric heating energy-accumulation heating apparatus |
| CN101625180A (en) * | 2009-08-17 | 2010-01-13 | 陈仁春 | Solar hot air heating refrigeration hot water multipurpose device |
| CN102767813A (en) * | 2012-07-16 | 2012-11-07 | 西安交通大学 | Electrical-heating high-temperature conduction oil heat storage steam boiler and outlet steam temperature control method |
| CN202853443U (en) * | 2012-10-23 | 2013-04-03 | 昆明理工大学 | Heat-storage heat exchanger |
| CN105423795A (en) * | 2015-12-28 | 2016-03-23 | 江苏巨鼎新能源科技有限公司 | Molten salt heat storage device |
| DE102015108095A1 (en) * | 2015-05-21 | 2016-11-24 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Heat storage device and method for heat storage |
-
2019
- 2019-06-20 CN CN201910538281.9A patent/CN110388680A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218554Y (en) * | 2008-05-15 | 2009-04-08 | 梁保军 | Electric heating energy-accumulation heating apparatus |
| CN101625180A (en) * | 2009-08-17 | 2010-01-13 | 陈仁春 | Solar hot air heating refrigeration hot water multipurpose device |
| CN102767813A (en) * | 2012-07-16 | 2012-11-07 | 西安交通大学 | Electrical-heating high-temperature conduction oil heat storage steam boiler and outlet steam temperature control method |
| CN202853443U (en) * | 2012-10-23 | 2013-04-03 | 昆明理工大学 | Heat-storage heat exchanger |
| DE102015108095A1 (en) * | 2015-05-21 | 2016-11-24 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Heat storage device and method for heat storage |
| CN105423795A (en) * | 2015-12-28 | 2016-03-23 | 江苏巨鼎新能源科技有限公司 | Molten salt heat storage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043758A (en) * | 2019-12-06 | 2020-04-21 | 上海中如智慧能源集团有限公司 | Heat storage type air heater |
| CN113340141A (en) * | 2021-05-19 | 2021-09-03 | 格力电器(南京)有限公司 | Heat preservation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103836703B (en) | Fused salt regenerative electrochemical heats central heating system | |
| CN204358977U (en) | A kind of clean energy resource steam boiler adopting Molten Salt Heat Transfer heat accumulation | |
| CN110529870A (en) | A kind of recycling of cigarette air supply heat pump waste heat and flue gas take off the white integrated heating system heated with paddy electricity phase-change accumulation energy step | |
| CN109539851A (en) | A kind of modularization self-interacting type heat-pipe flue gas waste heat recovery | |
| CN104864613A (en) | Heat storage device | |
| CN110388677A (en) | A kind of low ebb electric-heating heat-conductive oil and the common storage heating system and method for fused salt | |
| CN206488353U (en) | A kind of heating system of photo-thermal on daytime evening paddy electricity | |
| CN110388680A (en) | A kind of conduction oil and fused salt capsule composite heat storage heating system and its method | |
| CN110388683A (en) | A kind of low ebb electric-heating heat-conductive oil and fused salt composite heat storage heating system and its method | |
| CN207214218U (en) | Electric heat storage system | |
| CN110375371A (en) | A kind of low ebb electric-heating heat-conductive oil and fused salt accumulation of heat hybrid heating system | |
| CN204084540U (en) | Fused salt regenerative electrochemical heating central heating system | |
| CN110345791A (en) | Phase-change accumulation energy can system and data center platform suitable for data center | |
| CN206875566U (en) | A kind of solar energy assisted gas power plant heating system | |
| CN202001231U (en) | Slotted solar middle-low-temperature ORC (Organic Rankine Cycle) thermal power generation device | |
| CN109883234A (en) | A kind of normal pressure phase change material device | |
| CN211372463U (en) | Integrated heat supply system of flue gas source heat pump waste heat recovery and valley electricity phase change energy storage | |
| CN107062349A (en) | Boiler heating system and boiler heating main system | |
| CN110388682A (en) | A kind of low ebb electric-heating heat-conductive oil and the common storage heating system of fused salt | |
| CN110388678A (en) | A kind of integrated storage heating system of heat-conducting oil furnace coupling spiral tube heat exchanger | |
| CN107289494A (en) | Central heating system based on distributed heating heat-storage technology | |
| CN109357418A (en) | A kind of cylinder formula fused salt heat absorber device and starting method | |
| CN110388681A (en) | A kind of low ebb electric-heating heat-conductive oil simultaneously couples heat exchange of heat pipe heat storage and heat supply system | |
| CN204574557U (en) | A kind of high temperature solar heating system | |
| CN204829827U (en) | Sun energy reserve heat recovery steam generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |
|
| RJ01 | Rejection of invention patent application after publication |