CN102305494B - Absorption-type chemical energy storage device containing crystals - Google Patents
Absorption-type chemical energy storage device containing crystals Download PDFInfo
- Publication number
- CN102305494B CN102305494B CN2011101970389A CN201110197038A CN102305494B CN 102305494 B CN102305494 B CN 102305494B CN 2011101970389 A CN2011101970389 A CN 2011101970389A CN 201110197038 A CN201110197038 A CN 201110197038A CN 102305494 B CN102305494 B CN 102305494B
- Authority
- CN
- China
- Prior art keywords
- storage tank
- solution
- energy
- heat exchanger
- concentrated solution
- 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.)
- Expired - Fee Related
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 42
- 239000000126 substance Substances 0.000 title claims abstract description 35
- 239000013078 crystal Substances 0.000 title abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000006096 absorbing agent Substances 0.000 claims abstract description 29
- 238000002425 crystallisation Methods 0.000 claims abstract description 25
- 230000008025 crystallization Effects 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 26
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 6
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 6
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 20
- 230000006870 function Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 154
- 238000000034 method Methods 0.000 description 24
- 238000009825 accumulation Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229940059936 lithium bromide Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses an absorption-type chemical energy storage device containing crystals. The device comprises a generator, an absorber, an evaporator, a condenser, a throttle valve, a solution pump, a concentrated solution storage tank, a dilute solution storage tank, a gas and liquid heat exchanger, a refrigerant storage tank and the like, wherein a solution heat exchange pipe and a cooling coil pipe are arranged in the concentrated solution storage tank; and an anti-crystallinic pipe is bypassed outside the solution heat exchange pipe for dissolving the crystals. The energy storage device disclosed by the invention can convert solar energy, industrial residual heat, sufficient electrical quantity and the like into chemical energy to be stored, and the mismatching of space, time and amount between a source side and an user side is solved; the energy storage technology can be used for changing defects into benefits, energy storage is carried out by utilizing an absorbent crystallization phenomenon, and the energy storage density is improved; anti-crystallinic measures are disclosed, and the normal operation of energy storage and release is ensured; the system circulation form is improved, the step heat energy utilization is realized, and the utilization efficiency of heat sources is improved; and functions of the device are expanded, so that four modes, namely energy storage, energy release, direct energy supply and simultaneous storage and release, are realized.
Description
Technical field
The present invention is a kind of absorption type chemical energy storage device that contains crystallization, relate to and adopt chemical accumulation of energy to carry out the field of power system capacity regulation and control, be particularly related to the fields such as the renewable energy utilizations such as solar energy, geothermal energy, waste heat recovery, cold, heat and power triple supply system, belong to the refrigeration air-conditioner field.
Background technology
Energy accumulating technique is not mate contradiction for solving between energy resource supply and demand on time, space and intensity, to improve a kind of means of energy utilization rate, is also a kind of important power save mode.As the regenerative resources such as solar energy that have great potential future, because it has periodicity, randomness, low-density, low-grade power supply characteristic, energy accumulating technique utilizes in process at it will bring into play vital effect.In various heat energy stored technology, sensible heat and latent heat (phase transformation) energy accumulating technique was the energy accumulating technique of broad research and application the most, and its development is also comparatively ripe, and the heat chemistry energy accumulating technique is in theory study and laboratory research stage at present.Have as the chemical solution energy accumulating technique based on the absorption refrigeration principle of one of heat chemistry energy accumulating technique that energy storage density is high, heat loss is little, can utilize low grade heat energy to drive (as solar energy, industrial exhaust heat, cooling heating and power generation system smoke discharging residual heat etc.); and adopt as the environment-friendly type working medium such as lithium-bromide solution, ammoniacal liquor equity advantage, all significant to improving energy efficiency and protection of the environment.
The chemical solution energy accumulating technique of studying both at home and abroad at present mainly adopts theory structure shown in Figure 1.Take lithium-bromide solution as working medium to being example: fill can the time, enter generator 1 from the weak solution in the weak solution storage tank, externally separate the sucking-off refrigerant vapour under the heating of driving heat source, refrigerant vapour condenses in condenser 4, the heat of condensation can be disposed to surrounding environment or offer heat supply user by cooling tower, condensed cold-producing medium is stored in cold-producing medium storage tank 10 with liquid form, and the concentrated solution after desorb is stored in concentrated solution storage tank 8.Releasing can the stage, the liquid refrigerant that is stored in refrigerant tank 10 enters the evaporimeter gasification, and its refrigerant vapour contacts the generation absorption reaction and emits heat with concentrated solution from concentrated solution storage tank 8 in absorber.Fill and to realize by the control valve that is arranged in system with the switching of exoergic process.According to use energy demand and the system form of user's side, the cold effect that produces at vaporizer side can be used for cooling, and the absorber liberated heat can be used for heat supply.7 of solution heat exchangers be for generator 1 out hot concentrated solution and get back to heat exchange between the cold weak solution of generator 2.The origin of heat that between different patents is mainly the number of storage tank and generator, evaporimeter and absorber is different.The chemical solution energy accumulating technique that Chinese patent literature (publication number CN 1560539A and CN 101619908A) is mentioned adopts respectively solar energy and compressor air-discharging as the thermal source of generator.
Above-mentioned chemical solution energy accumulating technique can be converted into the refrigerating/heating latent-energy of working solution with electric energy, solar energy etc. and store, can play to the large electric load of day and night fluctuation the effect of peak load shifting, also can provide the means of effectively utilizing for solar energy intermittently, this energy accumulating technique has improved energy storage density than other sensible heats and latent heat accumulator technology, has reduced memory space.Yet this technical scheme still has the following disadvantages: 1. the concentration due to the outlet of generator concentrated solution is larger, after further cooling through solution heat exchanger, the crystallization risk very easily occurs in the solution heat exchanger outlet, will cause absorption unit normally not move; 2. the concentrated solution tank can only storing solution, after being used for storage crystal, there is no effective molten brilliant measure; 3. the energy storage density leeway that still is greatly improved; 4. the inside backheat of this device circulation still has larger utilized space; 5. device can only realize releasing energy and two kinds of operational modes of accumulation of energy.
In order to address the above problem, the present invention proposes a kind of absorption type chemical energy storage device that contains crystallization, stores the solution crystal, to improve energy storage density; Propose corresponding molten brilliant measure, guaranteed to release the normal operation of energy and accumulation of energy; The function of expanding unit, make device can realize accumulation of energy, release can, directly energy supply and release four kinds of patterns while holding, to reduce the manufacturing cost of function device; By cascade utilization heat energy, to improve the utilization ratio of thermal source.
Summary of the invention
Problem for the prior art existence, the present invention proposes a kind of absorption type chemical energy storage device that contains crystallization, be about to solar energy, industrial exhaust heat, plentiful electric weight etc. and be converted into chemical energy and store, thereby improve the space of source and user's side, the mismatch of T/A.
Its concrete technical scheme is:
A kind of absorption type chemical energy storage device that contains crystallization is characterized in that: contain generator, absorber, evaporimeter, condenser, choke valve, solution pump, concentrated solution storage tank, weak solution storage tank, gas-liquid heat exchanger and cold-producing medium storage tank; Described concentrated solution storage tank is provided with the anti-crystallinic pipe entrance, and section is provided with the solution heat exchanger tube within it; The concentrated solution outlet of described generator is connected with concentrated solution storage tank, absorber and weak solution storage tank successively by pipeline; The steam (vapor) outlet of generator is connected with absorber with gas-liquid heat exchanger, condenser, cold-producing medium storage tank, choke valve, evaporimeter successively by pipeline; The pipeline in weak solution tank exit is provided with solution pump, connects respectively solution heat exchanger tube and the anti-crystallinic pipe of concentrated solution storage tank in the solution pump exit; The outlet of solution heat exchanger tube is connected to the cold junction entrance of gas-liquid heat exchanger, and the cold side outlet of gas-liquid heat exchanger is connected to the weak solution entrance of generator; Pipeline between concentrated solution storage tank and absorber arranges the first valve, the second valve is set on the pipeline between cold-producing medium storage tank and choke valve, on the pipeline between the cold junction entrance of the outlet of the solution heat exchanger tube of concentrated solution storage tank and gas-liquid heat exchanger, the 3rd valve is set, on the solution heat exchanger tube of concentrated solution storage tank and anti-crystallinic pipe, the 4th valve and the 5th valve is set respectively; Be provided with cooling coil in described concentrated solution storage tank; Cold-producing medium in chemical energy storage device is the mixture of one or more materials during water system, alcohol system or fluorine are; Absorbent in chemical energy storage device is LiBr, LiCl, LiNO3, NaBr, KBr, CaCl
2, MgBr
2And ZnCl
2In the mixture of one or more materials; Described absorbent comprises to have and promotes crystallization, delays to corrode or improve the additive of solubility effect.
The present invention has carried out effective Improvement and perfection by above technical scheme to the deficiency that prior art exists, this energy accumulating technique fraud is profit, having utilized the normal crystalline polamer that occurs of absorption unit to carry out energy stores, and corresponding molten brilliant measure proposed, the normal operation of energy and accumulation of energy is released in assurance, by having changed the circulation form of system, energy storage density and energy efficiency have further been improved.Be mainly manifested in the following aspects:
1) cancel the solution heat exchanger 7 of prior art, reduced the crystallization risk at the solution heat exchanger place;
2) the concentrated solution storage tank can not only storage of liquids, also can storage crystal and composition thereof, and can realize that crystal and the effective of solution separate, improved the energy storage density of device.
3) set up the molten brilliant branch road that adopts weak solution to return the concentrated solution storage tank, adopted weak solution dissolving crystal, made crystal fully to dissolve, guaranteed carrying out smoothly of exoergic process.
4) increased employing concentrated solution storage tank and condenser post bake and got back to the process of the cold weak solution of generator from absorber, by cascade utilization heat energy, to improve the utilization ratio of thermal source;
5) this accumulation of energy unit has been expanded the function of device, can realize accumulation of energy, release and can, release while holding and independent four kinds of operational modes of energy supply, has reduced the manufacturing cost of function device.
Description of drawings
Fig. 1 is a kind of absorption type chemical energy storage device and the structure principle chart thereof of prior art.
Fig. 2 is a kind of structure principle chart that contains the absorption type chemical energy storage device of crystallization and release pattern while holding of the present invention.
Fig. 3 is the schematic diagram of the accumulation of energy pattern of a kind of absorption type chemical energy storage device that contains crystallization of the present invention.
Fig. 4 is a kind of schematic diagram of releasing the energy pattern that contains the absorption type chemical energy storage device of crystallization of the present invention.
Fig. 5 is a kind of schematic diagram that contains independent energy supply (refrigeration or the heat supply) pattern of the absorption type chemical energy storage device of crystallization of the present invention.
In figure: 1-generator, 2-absorber, 3-evaporimeter, 4-condenser, the 5-choke valve, 6-solution pump, 7-solution heat exchanger, 8-concentrated solution storage tank, 9-weak solution storage tank, 10-cold-producing medium storage tank, 11-the first valve, 12-the second valve, 13-gas-liquid heat exchanger, 14-the 3rd valve, 15-the 4th valve, 16-the 5th valve, the 17-anti-crystallinic pipe, 18-solution heat exchanger tube, 19-cooling coil
The specific embodiment
Fig. 2 has provided a kind of structure principle chart that contains the absorption type chemical energy storage device of crystallization of the present invention, and a kind of chemical energy storage device that contains crystallization is characterized in that: contain generator 1, absorber 2, evaporimeter 3, condenser 4, choke valve 5, solution pump 6, concentrated solution storage tank 8, weak solution storage tank 9, gas-liquid heat exchanger 13 and cold-producing medium storage tank 10; Described concentrated solution storage tank 8 is provided with anti-crystallinic pipe 17 entrances, and section is provided with solution heat exchanger tube 18 within it; The concentrated solution outlet of described generator 1 is connected with concentrated solution storage tank 8, absorber 2 and weak solution storage tank 9 successively by pipeline; The steam (vapor) outlet of generator 1 is connected with gas-liquid heat exchanger 13, condenser 4, cold-producing medium storage tank 10, choke valve 5, evaporimeter 3 and absorber 2 successively by pipeline; The pipeline in weak solution tank 9 exits is provided with solution pump 6, connects respectively solution heat exchanger tube 18 and the anti-crystallinic pipe 17 of concentrated solution storage tank 8 in solution pump 6 exits; 18 outlets of solution heat exchanger tube are connected to the cold junction entrance of gas-liquid heat exchanger 13, and the cold side outlet of gas-liquid heat exchanger 13 is connected to the weak solution entrance of generator 1; Pipeline between concentrated solution storage tank 8 and absorber 2 arranges the first valve 11, the second valve 12 is set on the pipeline between cold-producing medium storage tank 10 and choke valve 5, on the pipeline between the cold junction entrance of the outlet of the solution heat exchanger tube of concentrated solution storage tank 8 and gas-liquid heat exchanger 13, the 3rd valve 14 is set, on the solution heat exchanger tube 18 of concentrated solution storage tank 8 and anti-crystallinic pipe 17, the 4th valve 15 and the 5th valve 16 is set respectively; Be provided with cooling coil 19 in described concentrated solution storage tank 8; Cold-producing medium in chemical energy storage device is the mixture of one or more materials during water system, alcohol system or fluorine are; Absorbent in chemical energy storage device is LiBr, LiCl, LiNO3, NaBr, KBr, CaCl
2, MgBr
2And ZnCl
2In the mixture of one or more materials; Described absorbent comprises to have and promotes crystallization, delays to corrode or improve the additive of solubility effect.
Operational mode 1: accumulation of energy pattern
Fig. 3 is the schematic diagram of the accumulation of energy pattern of a kind of absorption type chemical energy storage device that contains crystallization of the present invention.When outside energy comparatively abundant, and user's time operation accumulation of energy pattern that do not need Power supply.At this moment, close the first valve 11, the second valve 12, the 5th valve 16, open the 3rd valve 14, the 4th valve 15, the weak solution that the weak solution storage tank is 9 li is by solution pump 6 pressurizations, solution heat exchanger tube 14 in concentrated solution storage tank 8, the 3rd valve 14, gas-liquid heat exchanger 13 enter in generator 1, because the weak solution temperature is lower, absorbed successively the heat in concentrated solution storage tank 8 and gas-liquid heat exchanger 13 before entering generator 1, realized the energy recovery.Weak solution in generator 1 is externally separated sucking-off refrigerant vapour and high temperature concentrated solution under the heating of driving heat source, concentrated solution is stored in thermal release in concentrated solution storage tank 8 after to weak solution, the refrigerant vapour of overflowing enters condenser 4 condensations with a part of thermal release after to weak solution through gas-liquid heat exchanger 13, finally is stored in cold-producing medium storage tank 10 with liquid form.The characteristics of this pattern are: the device intermittent duty; The solution amount that concentrated solution storage tank 8, weak solution storage tank are 9 li increases gradually, and the refrigerant liquid scale of construction that the cold-producing medium storage tank is 10 li is also increasing; Cancel conventional solution heat exchanger 7, increased and adopted concentrated solution storage tank 8 and condenser 13 hot process of getting back to the cold weak solution of generator 1 from absorber 2 again, improved the energy storage efficiency of unit.Concentrated solution storage tank 8 can not only storage of liquids, also stores simultaneously the salting liquid crystal, has improved the energy storage density of device.
Operational mode 2: releasing can pattern
Fig. 4 is a kind of schematic diagram of releasing the energy operating mode that contains the absorption type chemical energy storage device of crystallization of the present invention.Supply with when the user needs heat or cold, but generator 1 is when supplying with without thermal source, operation is released the energy pattern and is freezed or heat.At this moment, close the 3rd valve 14 and the 4th valve 15, open the first valve 11, the second valve 12 and the 5th valve 16, the refrigerant liquid of cold-producing medium storage tank 10 enters evaporimeter 3 gasifications after choke valve 12 throttling expansions, absorbed by the concentrated solution from concentrated solution storage tank 8 in absorber 2 at last, become weak solution, this process has produced a large amount of absorption heat.Owing to having part crystal or whole crystal in concentrated solution storage tank 8, the cold weak solution of part of 9 li of weak solution storage tanks is pumped into concentrated solution storage tank 8 dissolving crystal, the concentrated solution that produces high concentration enters absorber 2, and this process has produced a large amount of heats of solution.The heat that produces in absorber 2 and concentrated solution storage tank 8 or give user's heat supply or adopt cooling water to take away by demand and determines: when cooling, the heat that absorber 2 and concentrated solution storage tank 8 produce is taken away by cooling water when unit, and the external chilled water of evaporimeter 3 freezes; As the heat supply used time, the heat that absorber 2 and concentrated solution storage tank 8 produce is used for heat supply when unit, and evaporimeter 3 connects the low-grade heat sources such as source, ground, source of sewage, air-source and absorbs its heat.The characteristics of this pattern are: the device intermittent duty; The solution amount that concentrated solution storage tank 8, weak solution storage tank are 9 li reduces gradually, and the refrigerant liquid scale of construction that the cold-producing medium storage tank is 10 li also reduces gradually.
Operational mode 3: direct energy supply pattern
Fig. 5 is the schematic diagram of a kind of refrigeration that contains the absorption type chemical energy storage device of crystallization of the present invention/confession thermal condition.When energy supply is just met consumers' demand, can directly this device be moved into common cooling/heating pump assembly form.At this moment, close the 5th valve 16, open the first valve 11, the second valve 12, the 3rd valve 14 and the 4th valve 15.Weak solution in generator 1 is externally separated sucking-off refrigerant vapour and high temperature concentrated solution under the heating of driving heat source, the refrigerant vapour of overflowing enters condenser 4 condensations with a part of thermal release after to weak solution through gas-liquid heat exchanger 13, and this process has produced a large amount of condensation heat.Condensed refrigerant liquid enters the evaporimeter gasification after choke valve 12 throttling expansions, absorbed by the concentrated solution from concentrated solution storage tank 8 in absorber 2 at last, becomes weak solution and enters weak solution storage tank 9, has produced a large amount of absorption heat in this process absorber.The weak solution that the weak solution storage tank is 9 li is by solution pump 6 pressurizations, solution heat exchanger tube 15 in concentrated solution storage tank 8, the 3rd valve 14, gas-liquid heat exchanger 13 enter in generator 1, because the weak solution temperature is lower, absorb successively the heat in concentrated solution storage tank 8 and gas-liquid heat exchanger 13 before entering generator 1, realized the energy recovery.The characteristics of this pattern are: device is operation continuously, and the refrigerant liquid scale of construction that the solution amount that concentrated solution storage tank 8, weak solution storage tank are 9 li and cold-producing medium storage tank are 10 li is all constant.
Operational mode 4: release pattern while holding
Fig. 2 is a kind of schematic diagram of releasing operating mode while holding that contains the absorption type chemical energy storage device of crystallization of the present invention.When energy supply and user use on life period overlappingly, but when quantitatively not quite identical again, adopt the pattern of releasing while holding.Concrete control methods need to be determined according to energy supply intensity and user's request intensity.At this moment, open all valves, weak solution in generator 1 is externally separated sucking-off refrigerant vapour and high temperature concentrated solution under the heating of driving heat source, the refrigerant vapour of overflowing enters condenser 4 condensations with a part of thermal release after to weak solution through gas-liquid heat exchanger 13, and this process has produced a large amount of condensation heat.Condensed refrigerant liquid stores in cold-producing medium storage tank 10, the part refrigerant liquid enters evaporimeter 3 gasifications after choke valve 12 throttling expansions, absorbed by the concentrated solution from concentrated solution storage tank 8 in absorber 2 at last, become weak solution and enter weak solution storage tank 9, produced a large amount of absorption heat in this process absorber.The part weak solution that the weak solution storage tank is 9 li is by solution pump 6 pressurizations, solution heat exchanger tube 15 in concentrated solution storage tank 8, the 3rd valve 14, gas-liquid heat exchanger 13 enter in generator 1, because the weak solution temperature is lower, absorb successively the heat in concentrated solution storage tank 8 and gas-liquid heat exchanger 13 before entering generator 1, realized the energy recovery.In addition, the part weak solution that also has that the weak solution storage tank is 9 li enters the interior anti-crystallinic pipe 16 of concentrated solution tank 8, the crystal in dissolving concentrated solution tank 8, and the concentrated solution that produces high concentration enters absorber 2.The characteristics of this pattern are: device is operation continuously, the variation of the refrigerant liquid scale of construction that the solution amount that concentrated solution storage tank 8, weak solution storage tank are 9 li and cold-producing medium storage tank are 10 li by by the time energy supply intensity and user's request intensity determine.
Above-described concentrated solution storage tank 8 and weak solution storage tank 9 if be made into integrated storage tank, still belong to the scope of technical solution of the present invention.
Claims (4)
1. an absorption type chemical energy storage device that contains crystallization, is characterized in that: contain generator (1), absorber (2), evaporimeter (3), condenser (4), choke valve (5), solution pump (6), concentrated solution storage tank (8), weak solution storage tank (9), gas-liquid heat exchanger (13) and cold-producing medium storage tank (10); Described concentrated solution storage tank (8) is provided with anti-crystallinic pipe (17) entrance, and section is provided with solution heat exchanger tube (18) within it; The concentrated solution outlet of described generator (1) is connected with concentrated solution storage tank (8), absorber (2) and weak solution storage tank (9) successively by pipeline; The steam (vapor) outlet of generator (1) is connected with gas-liquid heat exchanger (13), condenser (4), cold-producing medium storage tank (10), choke valve (5), evaporimeter (3) and absorber (2) successively by pipeline; The pipeline in weak solution storage tank (9) exit is provided with solution pump (6), connects respectively solution heat exchanger tube (18) and the anti-crystallinic pipe (17) of concentrated solution storage tank (8) in solution pump (6) exit; Solution heat exchanger tube (18) outlet is connected to the cold junction entrance of gas-liquid heat exchanger (13), and the cold side outlet of gas-liquid heat exchanger (13) is connected to the weak solution entrance of generator (1); Pipeline between concentrated solution storage tank (8) and absorber (2) arranges the first valve (11), on the pipeline between cold-producing medium storage tank (10) and choke valve (5), the second valve (12) is set, on the pipeline between the cold junction entrance of the outlet of the solution heat exchanger tube of concentrated solution storage tank (8) and gas-liquid heat exchanger (13), the 3rd valve (14) is set, on the solution heat exchanger tube (18) of concentrated solution storage tank (8) and anti-crystallinic pipe (17), the 4th valve (15) and the 5th valve (16) is set respectively.
2. a kind of absorption type chemical energy storage device that contains crystallization according to claim 1, is characterized in that: be provided with cooling coil (19) in described concentrated solution storage tank (8).
3. a kind of absorption type chemical energy storage device that contains crystallization according to claim 1 is characterized in that: the cold-producing medium in chemical energy storage device is the mixture of one or more materials in water system, alcohol system or fluorine system; Absorbent in chemical energy storage device is LiBr, LiCl, LiNO3, NaBr, KBr, CaCl
2, MgBr
2And ZnCl
2In the mixture of one or more materials.
4. a kind of absorption type chemical energy storage device that contains crystallization according to claim 3 is characterized in that: described absorbent comprises and has the crystallization of promotion, delays to corrode or improve the additive of solubility effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101970389A CN102305494B (en) | 2011-07-14 | 2011-07-14 | Absorption-type chemical energy storage device containing crystals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101970389A CN102305494B (en) | 2011-07-14 | 2011-07-14 | Absorption-type chemical energy storage device containing crystals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305494A CN102305494A (en) | 2012-01-04 |
| CN102305494B true CN102305494B (en) | 2013-05-22 |
Family
ID=45379382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101970389A Expired - Fee Related CN102305494B (en) | 2011-07-14 | 2011-07-14 | Absorption-type chemical energy storage device containing crystals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102305494B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724873B (en) * | 2015-03-04 | 2017-03-08 | 四川理工学院 | A kind of white carbon black industrial wastewater zero-emission and the method for recycling |
| CN107163917A (en) * | 2017-06-20 | 2017-09-15 | 大连理工大学 | Ionic liquid solution base nano-fluid directly absorbs solar airconditioning/heat pump method and apparatus |
| CN108413794B (en) * | 2017-09-18 | 2024-02-20 | 徐阳 | Solution crystallization energy storage structure and generating energy storage device using same |
| CN108562066A (en) * | 2018-01-29 | 2018-09-21 | 东莞理工学院 | A kind of membrane type contact device and absorption system |
| CN109443065B (en) * | 2018-12-01 | 2023-12-26 | 中节能城市节能研究院有限公司 | Large concentration difference absorption type energy storage device based on active crystallization technology |
| CN114017947B (en) * | 2020-07-17 | 2023-08-22 | 香港城市大学 | Multifunctional absorption energy storage type solar hybrid power heat pump and operation method |
| CN113915786B (en) * | 2021-09-27 | 2023-03-07 | 河南科技大学 | Compression type heat pump device utilizing latent heat for energy storage |
| CN114909829B (en) * | 2022-05-24 | 2024-01-26 | 香港城市大学深圳研究院 | Double-stage absorption type energy storage device and application method thereof |
| CN115218531B (en) * | 2022-07-27 | 2024-03-29 | 哈尔滨工业大学 | Lithium bromide crystallization energy storage heat pump system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59112168A (en) * | 1982-12-17 | 1984-06-28 | 大阪瓦斯株式会社 | Air conditioner |
| JP3279029B2 (en) * | 1993-12-27 | 2002-04-30 | ダイキン工業株式会社 | Absorption refrigerator |
| CN1254821A (en) * | 1998-11-24 | 2000-05-31 | 吴植仁 | Absorption-type single-pump refrigerator set with vertically moving membrane |
| KR20020017343A (en) * | 2000-08-30 | 2002-03-07 | 황한규 | Crystal forming prevention apparatus in stoppage of eletric current of absorption type cooling system |
| US6637220B1 (en) * | 2002-07-29 | 2003-10-28 | Carrier Corporation | Dilution cycle for absorption chiller |
| CN100543382C (en) * | 2008-04-03 | 2009-09-23 | 东南大学 | Solar energy-storage type heat pump air-conditioning system based on solution |
| CN101619908A (en) * | 2009-07-24 | 2010-01-06 | 大连理工大学 | Energy storage refrigeration method using solar thermal energy driving |
| CN202254475U (en) * | 2011-07-14 | 2012-05-30 | 清华大学 | Absorption type chemical energy storage device including crystallization |
-
2011
- 2011-07-14 CN CN2011101970389A patent/CN102305494B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102305494A (en) | 2012-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102305494B (en) | Absorption-type chemical energy storage device containing crystals | |
| N’tsoukpoe et al. | Numerical dynamic simulation and analysis of a lithium bromide/water long-term solar heat storage system | |
| CN202254475U (en) | Absorption type chemical energy storage device including crystallization | |
| Gao et al. | An air-source hybrid absorption-compression heat pump with large temperature lift | |
| CN102216702B (en) | Heat pump cycle system and combined supplying method of cold and heat | |
| CN103256729B (en) | Large Copacity combined solar chemistry step high effective heat-storage device and application | |
| CN103968574B (en) | A kind of high efficiency energy storage type Solar Heat Pump Heating System method of round-the-clock running | |
| Gu et al. | Review on heat pump (HP) coupled with phase change material (PCM) for thermal energy storage | |
| CN103245085B (en) | A kind of accumulating type solar oscillating heat pipe heat pump heat distribution system and method thereof | |
| CN107388620A (en) | A kind of complex type solar lithium bromide absorption type air conditioner system | |
| CN101571330B (en) | Multifunctional frost-free solar-assisted heat pump system | |
| CN110118448B (en) | Heat storage cold storage type gas auxiliary solar energy absorption type ammonia water cooling system | |
| Bi et al. | Study on the characteristics of charging/discharging processes in three-phase energy storage coupling in solar air conditioning system | |
| CN102322705B (en) | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration | |
| CN202216448U (en) | Diffusion absorption refrigeration and vapor compression refrigeration combined recycle system | |
| CN203880976U (en) | Efficient energy-storage solar heat pump heating device operated all day | |
| CN201811485U (en) | Working medium energy storage and continuous refrigeration device with solar energy | |
| Zhu et al. | Simulation of an improved solar absorption refrigeration system with phase change materials | |
| CN105444457A (en) | Two-stage type absorption refrigerating unit and control method thereof | |
| Le et al. | Application of phase change materials in improving the performance of refrigeration systems | |
| Zhou et al. | A double-effect/two-stage absorption refrigeration and thermal energy storage hybrid cycle using dual working fluids | |
| CN109682115A (en) | The diffusion absorbing hybrid refrigeration device of solar energy-semiconductor driving | |
| CN210089179U (en) | Lithium bromide absorption type refrigerating system driven by wind, light and electricity | |
| CN203286777U (en) | Energy storage type solar oscillating heat pipe heat pump heating device | |
| Wu et al. | A thermochemical heat and cold control strategy for reducing diurnal temperature variation in the desert |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20170714 |