CN208475533U - A kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system - Google Patents
A kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system Download PDFInfo
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- CN208475533U CN208475533U CN201821098476.3U CN201821098476U CN208475533U CN 208475533 U CN208475533 U CN 208475533U CN 201821098476 U CN201821098476 U CN 201821098476U CN 208475533 U CN208475533 U CN 208475533U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning systems, including fused salt circulation loop and refrigeration cycle, fused salt circulation loop includes sequentially connected solar energy heat collector, high temperature melting salt cellar, high-temperature melting salt pump, steam generator, low-temperature molten salt tank and low-temperature molten salt pump, the refrigeration cycle includes sequentially connected steam generator, LiBr-Air-conditioner unit and water-circulating pump, it is connected between fused salt circulation loop and refrigeration cycle by the steam generator, low-temperature molten salt tank is provided with fused salt, fused salt can be in the fused salt circulation loop internal circulation flow.Double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in the utility model can store thermal energy using fused salt at higher temperatures, the utilization rate of thermal energy is improved, so that double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system has the advantages that high thermal energy, low cost and service life are long.
Description
Technical field
The utility model relates to photo-thermal refrigeration system technical fields, more particularly to a kind of double loop solar energy heat collection molten salt
Energy storage lithium bromide air-conditioning system.
Background technique
Solar energy is one of the variety of energy sources being most widely used in renewable energy, can be carried out thermal storage and energy accumulation using the sun
Skill can solve the energy in photo-thermal power generation, and currently used is conduction oil energy storage heat exchange mostly, because it is with good thermally conductive
Ability and stability are widely adopted.But the disadvantages of conduction oil is low there are still the service life, temperature is low, land occupation is big, at high cost.
In view of the above-mentioned problems, fused salt thermal storage and energy accumulation technology can solve high temperature low-cost energy storage problem.In addition the sun
Thermal energy can be directly generated, other than being directly used in winter heating and hot steam power generation, most opto-thermal system summer leaves unused and causes to provide
Source waste.
Utility model content
The purpose of the utility model is to provide a kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning systems, with solution
Certainly the above-mentioned problems of the prior art can store thermal energy using fused salt at higher temperatures, so that double loop solar energy
Heat collection molten salt energy storage lithium bromide air-conditioning system has the advantages that high thermal energy, low cost and service life are long.
To achieve the above object, the utility model provides following scheme:
The utility model provides a kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system, including fused salt follows
Loop back path and refrigeration cycle, the fused salt circulation loop include solar energy heat collector, high temperature melting salt cellar, low-temperature molten salt
Tank, steam generator, low-temperature molten salt pump and high-temperature melting salt pump, the refrigeration cycle include that the steam generator, water follow
Ring pump and LiBr-Air-conditioner unit, pass through the steam generator between the fused salt circulation loop and the refrigeration cycle
Connection, one end that the low-temperature molten salt outlet of the low-temperature molten salt tank passes through low-temperature molten salt pump and the solar energy heat collector
Connection, the other end of the solar energy heat collector are connect with the high-temperature molten salt entrance of the high temperature melting salt cellar, the high temperature melting
The high-temperature molten salt outlet of salt cellar is connect by the high-temperature melting salt pump with the fused salt loop head of the steam generator, the steaming
The fused salt loop exit of vapour generator is connect with the low-temperature molten salt entrance of the low-temperature molten salt tank, the steam of the steam generator
Outlet is connect with the steam inlet of the LiBr-Air-conditioner unit, and the wastewater outlet of the LiBr-Air-conditioner unit passes through the water
Circulating pump is connect with the waterwater entrance of the steam generator, and the low-temperature molten salt tank is provided with fused salt, and the fused salt can be
The fused salt circulation loop internal circulation flow.
Preferably, it is connected with first electrode boiler on the high temperature melting salt cellar, is connected with second in the low-temperature molten salt tank
Electrode boiler, the first electrode boiler and the second electrode boiler are for preheating and heating the fused salt.
Preferably, the solar energy heat collector includes solar groove type thermal-arrest mirror and tube shape heat collector, the solar energy
Slot type collection heat mirror is poly- point-blank by sunlight, and the tubular heat collector is set on the straight line.
Preferably, the solar energy heat collector, the high temperature melting salt cellar, the low-temperature molten salt tank, the steam generation
Pass through piping connection, the steam generator, the water-circulating pump between device, low-temperature molten salt pump and the high-temperature melting salt pump
Pass through piping connection between the LiBr-Air-conditioner unit.
Preferably, the piping and the steam generator are equipped with electric heater unit, to prevent the fused salt described
It is detained solidification in piping.
Preferably, the bending part of the piping uses arc-shaped transition.
Preferably, the LiBr-Air-conditioner unit further includes cold water outlet and water return outlet, and the one of the cold water outlet and user terminal
End connection, the other end of the user terminal are connect with the water return outlet.
Preferably, the low-temperature molten salt tank is set to the lowest point of whole system.
The utility model achieves following technical effect: double loop solar energy heat collection molten salt energy storage bromine compared with the existing technology
Thermal energy can be stored using fused salt at higher temperatures by changing lithium air-conditioning system, and by by fused salt circulation loop and refrigeration cycle
Circuit combines, so that the thermal energy that solar energy generates can not only be directly used in winter heating and hot steam power generation, improves round the clock
Thermal energy is supplied incessantly, moreover it is possible to is applied to refrigeration cycle, be achieved the purpose that continuous cooling, substantially increase the benefit of thermal energy
With rate, so that double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system has high thermal energy, low cost and service life long
Advantage.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system；
Wherein: 1- solar energy heat collector, 2- high temperature melting salt cellar, 3- low-temperature molten salt tank, 4- steam generator, 5- low temperature are molten
Salt pump, 6- high-temperature melting salt pump, 7- water-circulating pump, 8- LiBr-Air-conditioner unit, 9- first electrode boiler, 10- second electrode boiler,
11- solar groove type collection heat mirror, 12- tubular heat collector, 21- high-temperature molten salt entrance, the outlet of 22- high-temperature molten salt, 31- low-temperature molten salt
Outlet, 32- low-temperature molten salt entrance, 41- fused salt loop head, 42- fused salt loop exit, 43- steam (vapor) outlet, 44- waterwater entrance,
The steam inlet 81-, 82- wastewater outlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise not made the creative labor
Under every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning systems, with solution
Problem certainly of the existing technology can store thermal energy using fused salt at higher temperatures, so that double loop solar energy heating
Molten salt energy-storage lithium bromide air-conditioning system has the advantages that high thermal energy, low cost and service life are long.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
A kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system is present embodiments provided as shown in Figure 1:, is wrapped
Include fused salt circulation loop and refrigeration cycle.Connected between fused salt circulation loop and refrigeration cycle by steam generator 4
It connects.
Fused salt circulation loop include solar energy heat collector 1, high temperature melting salt cellar 2, low-temperature molten salt tank 3, steam generator 4,
The low-temperature molten salt outlet 31 of low-temperature molten salt pump 5 and high-temperature melting salt pump 6, low-temperature molten salt tank 3 passes through low-temperature molten salt pump 5 and solar energy collection
One end of thermal 1 connects, and the other end of solar energy heat collector 1 is connect with the high-temperature molten salt entrance 21 of high temperature melting salt cellar 2, high
The high-temperature molten salt outlet 22 of temperature molten salt tank 2 is connect by high-temperature melting salt pump 6 with the fused salt loop head 41 of steam generator 4, is steamed
The fused salt loop exit 42 of vapour generator 4 is connect with the low-temperature molten salt entrance 32 of low-temperature molten salt tank 3.Low-temperature molten salt tank 3 is provided with
Fused salt, fused salt can be in fused salt circulation loop internal circulation flows, and fused salt is by 60%NaNO3And 40%KNO3Composition, the fused salt exist
Start to melt at 221 DEG C, it is very good in 600 DEG C or less thermal stability.It can make the fusing point of two end number mixing fused salt using additive
It is greatly lowered, but does not change the thermal stability of fused salt mixt simultaneously, or even the highest use of fused salt can also be further increased
Temperature.This molten salt mixture can store thermal energy compared to conduction oil at higher temperatures, to provide uninterrupted heat round the clock
It can supply, while liquid can be kept at a lower temperature.First electrode boiler 9, low-temperature molten salt tank are connected on high temperature melting salt cellar 2
It is connected with second electrode boiler 10, first electrode boiler 9 and second electrode boiler 10 on 3 for preheating and heating fused salt, prevents
Fused salt is detained solidification in piping, causes with blockage.
Solar energy heat collector 1 includes solar groove type collection heat mirror 11 and tubular heat collector 12, solar groove type collection heat mirror
11 gather sunlight point-blank, and tubular heat collector 12 is set on this straight line, and solar energy heat collector 1 is used to inhale
Solar energy is received, and fused salt is heated.What the paraboloid of solar groove type collection heat mirror 11 carried out the sun is one-dimensional tracking, is gathered
Light ratio is 10~100, and temperature can achieve 400 DEG C.
Refrigeration cycle includes steam generator 4, water-circulating pump 7 and LiBr-Air-conditioner unit 8, steam generator 4
Steam (vapor) outlet 43 is connect with the steam inlet 81 of LiBr-Air-conditioner unit 8, and the wastewater outlet 82 of LiBr-Air-conditioner unit 8 passes through water
Circulating pump 7 is connect with the waterwater entrance 44 of steam generator 4.LiBr-Air-conditioner unit 8 further includes cold water outlet and water return outlet, cold water
Mouth is connect with one end of user terminal, and the other end of user terminal is connect with water return outlet.LiBr-Air-conditioner unit 8 is called lithium bromide absorption
Formula refrigeration unit is, using water as refrigerant solution, to evaporate suction in high vacuum using water using lithium-bromide solution as absorber material
Heat achievees the purpose that refrigeration.In LiBr-Air-conditioner unit 8, the refrigerant vapor after pervaporation can be brominated the suction of lithium solution
It receives, lithium-bromide solution is gradually thinning, this process is occurred in absorber, then using thermal energy as power, lithium bromide is molten
Liquid heating separates its moisture content, and lithium-bromide solution thickens, and the water vapour obtained in generator is within the condenser in this way
Water is condensed into, send after throttling and is evaporated into evaporator again, so circulation achievees the purpose that continuous cooling.
Solar energy heat collector 1, high temperature melting salt cellar 2, low-temperature molten salt tank 3, steam generator 4, low-temperature molten salt pump 5 and high temperature
By piping connection between pump for liquid salts 6, connected between steam generator 4, water-circulating pump 7 and LiBr-Air-conditioner unit 8 by piping
It connects.Piping and steam generator 4 are equipped with electric heater unit, to prevent fused salt to be detained solidification, the bending part of piping in piping
Using arc-shaped transition, circulated with guaranteeing that fused salt is good in piping.
The working principle of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in the present embodiment are as follows: in fused salt
When circulatory system operation is initial, the piping of the molten salt equipment and the fused salt circulatory system of high temperature melting salt cellar 2 and the composition of low-temperature molten salt tank 3
It is in normal temperature state, is needed using indirect type first electrode boiler 9, second electrode boiler 10 respectively to 2 and of high temperature melting salt cellar
Low-temperature molten salt tank 3 is preheated, with prevent fused salt enter after blocking, and the piping of the fused salt circulatory system are cured in pipeline
Electric heater unit is all had with steam generator 4, fused salt is prevented to be detained solidification in piping, causes concurrently to make trouble with blockage
Therefore.Before whole system operation, fused salt is all stored in low-temperature molten salt tank 3, and fused salt is melting whole system in the process of running
Salt circulatory system internal circulation flow.
When the fused salt circulatory system works, the fused salt in low-temperature molten salt tank 3 is transported to tubulose thermal-arrest through low-temperature molten salt pump 10
In device 12, fused salt enters in high temperature melting salt cellar 2 after absorbing thermal energy heating through high-temperature molten salt entrance 21, and subsequent high-temperature molten salt is through high temperature
Fused salt outlet 22 flows into steam generator 4 after the outflow of high temperature melting salt cellar 2 through fused salt loop head 41, and steam generator 4
Interior temperature of molten salt flows back in low-temperature molten salt tank 3 after reducing, to complete the course of work of a fused salt circulatory system, fused salt is followed
When loop system is out of service, whole fused salts in the fused salt circulatory system will be discharged into low-temperature molten salt tank 3.Cooling cycle system work
When making, the high-temperature molten salt heating cold water entered in steam generator 4 generates superheated steam, and superheated steam is through 43 row of steam (vapor) outlet
Enter LiBr-Air-conditioner unit 8, the driving operation refrigeration of LiBr-Air-conditioner unit 8, from cooling water outlet stream through steam inlet 81 after out
Cold water flows back to LiBr-Air-conditioner unit 8, the waste water that LiBr-Air-conditioner unit 8 generates to user terminal, the warm water of user terminal again out
It is entered inside steam generator 4 after being delivered to waterwater entrance 44 by water-circulating pump 7 after the outflow of wastewater outlet 82, to complete
The course of work of cooling cycle system.
PIPING DESIGN has reasonable curvature, be piped the size of curvature according to the diameter of piping, fused salt flow velocity and
The pressure of pump is reasonably selected, so that being unlikely to have remaining fused salt to be detained in piping.Low-temperature molten salt tank 3 is placed in whole system
Lowest point so that the highest liquid level of low-temperature molten salt tank 3 be lower than high temperature melting salt cellar 2 minimum level, it is tight in the fused salt circulatory system
Emergency stop vehicle or it is out of service when, fused salt solidifies in low-temperature molten salt tank 3 in order to prevent, using second electrode boiler 10 by the temperature of fused salt
Degree is maintained at melting point or more.The volume of low-temperature molten salt tank 3 is usually bigger, and second electrode boiler 10 heats automatically to keep low
Fused salt in temperature molten salt tank 3 does not occur solidification phenomenon.
Fused salt Designed reserve is sufficiently large, and daytime stores enough energy, and LiBr-Air-conditioner unit 8 can be made to freeze round the clock,
So that solar energy directly generates thermal energy, other than being directly used in winter heating and hot steam power generation, additionally it is possible to it is used for air conditioner refrigerating,
Avoid most opto-thermal system as summer is idle and caused by the wasting of resources, the utilization rate of thermal energy is substantially increased, using molten
Salt can store thermal energy at higher temperatures, so that double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system has height
The advantage of thermal energy, low cost and service life length.
It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field
Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute
It states, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. a kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system, it is characterised in that: including fused salt circulation loop
And refrigeration cycle, the fused salt circulation loop include solar energy heat collector, high temperature melting salt cellar, low-temperature molten salt tank, steam
Generator, low-temperature molten salt pump and high-temperature melting salt pump, the refrigeration cycle include the steam generator, water-circulating pump and bromine
Change lithium air-conditioner set, is connected between the fused salt circulation loop and the refrigeration cycle by the steam generator, institute
The low-temperature molten salt outlet for stating low-temperature molten salt tank is connect by low-temperature molten salt pump with one end of the solar energy heat collector, institute
The other end for stating solar energy heat collector is connect with the high-temperature molten salt entrance of the high temperature melting salt cellar, the height of the high temperature melting salt cellar
Temperature molten salt outlet is connect by the high-temperature melting salt pump with the fused salt loop head of the steam generator, the steam generator
Fused salt loop exit connect with the low-temperature molten salt entrance of the low-temperature molten salt tank, the steam (vapor) outlet of the steam generator and institute
State the steam inlet connection of LiBr-Air-conditioner unit, the wastewater outlet of the LiBr-Air-conditioner unit by the water-circulating pump with
The waterwater entrance of the steam generator connects, and the low-temperature molten salt tank is provided with fused salt, and the fused salt can be in the fused salt
Circulation loop internal circulation flow.
2. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 1, it is characterised in that: institute
It states and is connected with first electrode boiler on high temperature melting salt cellar, be connected with second electrode boiler in the low-temperature molten salt tank, described first
Electrode boiler and the second electrode boiler are for preheating and heating the fused salt.
3. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 1, it is characterised in that: institute
Stating solar energy heat collector includes solar groove type thermal-arrest mirror and tube shape heat collector, and the solar groove type collection heat mirror is by sunlight
Gather point-blank, the tubular heat collector is set on the straight line.
4. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 1, it is characterised in that: institute
State solar energy heat collector, the high temperature melting salt cellar, the low-temperature molten salt tank, the steam generator, low-temperature molten salt pump
Pass through piping connection, the steam generator, the water-circulating pump and the LiBr-Air-conditioner between the high-temperature melting salt pump
Pass through piping connection between unit.
5. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 4, it is characterised in that: institute
It states piping and the steam generator is equipped with electric heater unit, to prevent the fused salt to be detained solidification in the piping.
6. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 4, it is characterised in that: institute
The bending part of piping is stated using arc-shaped transition.
7. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 1, it is characterised in that: institute
Stating LiBr-Air-conditioner unit further includes cold water outlet and water return outlet, one end connection of the cold water outlet and user terminal, the user terminal
The other end connect with the water return outlet.
8. solar energy heat collection molten salt energy storage lithium bromide air-conditioning system in double loop according to claim 1, it is characterised in that: institute
State the lowest point that low-temperature molten salt tank is set to whole system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821098476.3U CN208475533U (en) | 2018-07-11 | 2018-07-11 | A kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system |
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| CN201821098476.3U CN208475533U (en) | 2018-07-11 | 2018-07-11 | A kind of double loop solar energy heat collection molten salt energy storage lithium bromide air-conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185591A (en) * | 2019-07-05 | 2019-08-30 | 河北道荣新能源科技有限公司 | A kind of photo-thermal power generation energy supplying system for agricultural industry garden |
| CN112781271A (en) * | 2021-02-03 | 2021-05-11 | 国电龙源电力技术工程有限责任公司 | Heat storage type solar combined cooling and heating system |
| CN114484903A (en) * | 2021-12-28 | 2022-05-13 | 青海中控太阳能发电有限公司 | Photovoltaic photo-thermal sharing energy storage device and use method thereof |
-
2018
- 2018-07-11 CN CN201821098476.3U patent/CN208475533U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185591A (en) * | 2019-07-05 | 2019-08-30 | 河北道荣新能源科技有限公司 | A kind of photo-thermal power generation energy supplying system for agricultural industry garden |
| CN112781271A (en) * | 2021-02-03 | 2021-05-11 | 国电龙源电力技术工程有限责任公司 | Heat storage type solar combined cooling and heating system |
| CN114484903A (en) * | 2021-12-28 | 2022-05-13 | 青海中控太阳能发电有限公司 | Photovoltaic photo-thermal sharing energy storage device and use method thereof |
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