CN101818967A - Composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply - Google Patents
Composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply Download PDFInfo
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- CN101818967A CN101818967A CN201010176870A CN201010176870A CN101818967A CN 101818967 A CN101818967 A CN 101818967A CN 201010176870 A CN201010176870 A CN 201010176870A CN 201010176870 A CN201010176870 A CN 201010176870A CN 101818967 A CN101818967 A CN 101818967A
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- 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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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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
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- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The invention provides a composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply, belonging to the energy technical field. The device comprises a low-grade residual heat device, a thermochemical pressure swing desorption composite energy storage device, a thermochemical temperature swing adsorption combined cold-heat supply device, two refrigerant regulating valves, a condenser and a heat exchange coil pipe for the condenser, wherein, the low-grade residual heat device is connected with the thermochemical pressure swing desorption composite energy storage device; the thermochemical pressure swing desorption composite energy storage device is connected with the inlet of a first refrigerant regulating valve; the outlet of the first refrigerant regulating valve is connected with the inlet of the condenser; the outlet of the condenser is connected with the inlet of a second refrigerant regulating valve; the exit of the second refrigerant regulating valve is connected with the thermochemical temperature swing adsorption combined cold-heat supply device; and the condenser is internally equipped with the heat exchange coil pipe for the condenser. The device is applied to energy quality improvement of low-grade residual heat/industrial waste heat and efficient recovery; and the device has the advantages of strong temperature-rise capability, high stored energy density, composite storage of heat and refrigerating capacity, and combined cold-heat supply.
Description
Technical field
What the present invention relates to is a kind of device of energy technology field, specifically is a kind of composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply.
Background technology
The energy is the material base of human survival and social development, and few, the efficiency of energy utilization of energy resources occupancy volume is the present situation of China's using energy source far below developed country's level per capita.Because efficiency of energy utilization is lower, make that China's low grade heat energy (as industrial exhaust heat/used heat and regenerative resource) is very abundant, as steel industry, chemical industry, building trade, food service industry, the paper mill, solar energy, low grade residual heat/industrial waste heats such as underground heat, yet, owing to lack the efficient science and technology of utilizing of low grade residual heat and the reasonable disposition of energy, there is every year a large amount of low grade residual heats to can not get effective recycling and directly discharged in China, cause great energy waste, trace it to its cause, largely be to make existing energy utilization technology can't realize recycling because the temperature of low grade residual heat is low, if adopt of the lifting of correlation energy source technology, then can regain recycling to the lower waste heat enforcement energy grade of these temperature.Under this background, the advanced energy utilization technology that low grade heat energies such as exploitation waste heat/used heat utilize is to alleviating China's energy pressure and promoting that continuous development of society economy has crucial meaning.
Through the literature search to prior art, the technology that realizes the lifting of heat energy grade is mainly based on steam compression heat pump technology, second class (heating type) liquid absorption heat pump and chemical heat pump technology, and pertinent literature is as follows:
1, Chinese patent application number is: 200720003768.X, name is called: a kind of low grade residual heat reclaims heat-pump water heater, this device comprises the compressor of a preheater, evaporimeter, two condensers, two platform independent, two cold-producing medium expansion elements, two water pumps, and other appurtenances, be used for reclaiming the heat of 30～50 ℃ of waste water to produce the clear hot-water more than 55 ℃, its shortcoming is that this heat pump assembly output temperature is lower, be mainly used in building and heating, can't realize that the energy composite energy of low grade residual heat stores.
2, Chinese patent application number is: 200710049983.8, name is called: a kind of low grade heat energy directly utilizes system and method, this system comprises: low-grade heat source, heat exchanger, air conditioner end equipment, low-grade energy, end-equipment, low-grade energy source heat exchanger and heat-transfer fluid, it adopts with target temperature 5-15 ℃ temperature difference realization indoor 16-26 ℃ temperature is controlled, directly utilize heating and the refrigeration of temperature for 0-45 ℃ low-grade heat source realization building, its shortcoming is that the energy grade that can't realize low grade residual heat promotes and the energy composite energy storage.
3, Chinese patent application number is: 00101163.4, name is called: sorption type heat pump and control method thereof, this device comprises regenerator, condenser, evaporimeter, absorber, can utilize waste heat to obtain high temperature fluid and cryogen, realize cold and heat combined supply, its shortcoming is that the low energy grade of low grade residual heat that causes of this heat pump intensification ability promotes the little range of application that has limited in the industrial afterheat recovery field of amplitude, and can't realize that energy composite energy stores.
4, Chinese patent application number is: 200710171228.7, name is called: second-stage gas-solid reaction heat transformer system, this system comprises parts such as first chamber, second chamber, the 3rd chamber, the 4th chamber, the first gas circuit valve, the second gas circuit valve, backheat valve, this system can realize the temperature increase to waste heat/low-grade heat source, its shortcoming is that the chemical reaction rate difference of each chamber causes system's output temperature fluctuation bigger, be difficult to and extraneous user's coupling, and can't realize cold and heat combined supply.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, a kind of composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply is provided, make it solve the lower and drawback can't high efficiente callback utilized of Yin Wendu in low grade residual heat recycling process, adopt heat chemistry voltage transformation desorption technique and heat chemistry alternating temperature adsorption technology, realize that to the conversion of chemisorbed potential energy the energy grade of low grade residual heat promotes by heat energy, cold and heat combined supply, and the composite energy storage energy supply, and the intensification ability is strong, the energy storage density height, can realize simultaneously that heat and refrigeration cold store and to extraneous user's cold and heat combined supply.
The present invention is achieved by the following technical solutions, the present invention includes: the low grade residual heat device, heat chemistry pressure-swing desorption composite energy storing device, heat chemistry alternating temperature absorption heat and cold supplier, two cold-producing medium control valves, condenser and condenser heat exchange coil, wherein: the low grade residual heat device links to each other with heat chemistry pressure-swing desorption composite energy storing device, the import of the heat chemistry pressure-swing desorption composite energy storing device and the first cold-producing medium control valve links to each other, the outlet of the first cold-producing medium control valve links to each other with the import of condenser, the outlet of condenser links to each other with the import of the second cold-producing medium control valve, the outlet of the second cold-producing medium control valve links to each other with heat chemistry alternating temperature absorption heat and cold supplier, is provided with the condenser heat exchange coil in the condenser.
Described heat chemistry pressure-swing desorption composite energy storing device comprises: energy storage is solid-and the solid/liquid/gas reactions device, energy storage reactor heat exchange coil, the energy storage chemisorbed material, the 3rd cold-producing medium control valve, admittedly auxiliary-the solid/liquid/gas reactions device, auxiliary reactor heat exchange coil and assistant chemical sorbing material, wherein: energy storage is solid-and the outlet of solid/liquid/gas reactions device links to each other with the import of the 3rd cold-producing medium control valve, the outlet of the 3rd cold-producing medium control valve links to each other with the import of admittedly auxiliary-solid/liquid/gas reactions device, energy storage is solid-be provided with energy storage reactor heat exchange coil in the solid/liquid/gas reactions device, the assistant chemical sorbing material is loaded in admittedly auxiliary-solid/liquid/gas reactions device, be provided with the auxiliary reactor heat exchange coil in admittedly auxiliary-solid/liquid/gas reactions device, the energy storage chemisorbed material load in energy storage solid-the solid/liquid/gas reactions device in, energy storage reactor heat exchange coil is connected with the low grade residual heat device.
Described heat chemistry alternating temperature absorption heat and cold supplier comprises: high/low temperature evaporimeter, the evaporimeter heat exchange coil, the 4th cold-producing medium control valve, energy supply is consolidated-the solid/liquid/gas reactions device, energy supply reactor heat exchange coil and energy supply chemisorbed material, wherein: the import of high/low temperature evaporimeter links to each other with the outlet of the second cold-producing medium control valve, the outlet of high/low temperature evaporimeter links to each other with the 4th cold-producing medium control valve import, the import that the 4th cold-producing medium control valve exports-solid/liquid/gas reactions device solid with energy supply links to each other, the energy supply chemisorbed material load in energy supply solid-the solid/liquid/gas reactions device in, energy supply is solid-be provided with energy supply reactor heat exchange coil in the solid/liquid/gas reactions device, be provided with the evaporimeter heat exchange coil in the high/low temperature evaporimeter, energy supply reactor heat exchange coil is connected with extraneous hot user side, and the evaporimeter heat exchange coil is connected with extraneous cold user side.
The flow direction of described cold-producing medium is unidirectional, cold-producing medium flow through successively energy storage solid-the solid/liquid/gas reactions device, auxiliary solid-solid/liquid/gas reactions device, condenser, high/low temperature evaporimeter and energy supply be solid-the solid/liquid/gas reactions device.
Described energy storage is solid-the solid/liquid/gas reactions device to described auxiliary solid-the transformation heating desorption process of solid/liquid/gas reactions device and described auxiliary solid-the solid/liquid/gas reactions device is to the heating desorption process of described condenser, constitutes heat chemistry pressure-swing desorption composite energy storage process.
Described energy supply is solid-the solid/liquid/gas reactions device to the absorption refrigeration process of described high/low temperature evaporimeter and described energy supply solid-the solid/liquid/gas reactions device is to the alternating temperature adsorption process of described high/low temperature evaporimeter, constitutes heat chemistry alternating temperature absorption cold and heat combined supply process.
Under identical operating pressure, the operating temperature of described energy storage chemisorbed material is higher than the operating temperature of assistant chemical sorbing material.
Under identical operating pressure, the operating temperature of described energy supply chemisorbed material is higher than the operating temperature of assistant chemical sorbing material.
Workflow of the present invention was made up of two stages:
In first stage, the heat chemistry pressure-swing desorption composite energy storage stage of low grade residual heat also is the heat and the refrigeration cold storage stage of low grade residual heat.The course of work comprise energy storage solid-the solid/liquid/gas reactions device to auxiliary solid-the transformation heating desorption process of solid/liquid/gas reactions device and auxiliary solid-the solid/liquid/gas reactions device is to the heating desorption process of condenser: at first, utilize the low grade residual heat device for energy storage solid-the solid/liquid/gas reactions device in the energy storage chemisorbed material heat of desorption is provided, make it that chemical breakdown reaction take place, the refrigerant vapour of separating sucking-off enter auxiliary solid-adsorbed by the assistant chemical sorbing material in the solid/liquid/gas reactions device, finish energy storage solid-the transformation heating desorption process of solid/liquid/gas reactions device; Secondly, utilize the low grade residual heat device to provide heat of desorption for assistant chemical sorbing material in admittedly auxiliary-solid/liquid/gas reactions device, make it that chemical breakdown reaction take place, the refrigerant vapour of separating sucking-off enters condenser and condenses into liquid, finishes the heating desorption process of admittedly auxiliary-solid/liquid/gas reactions device.This stage utilizes low grade heat energy to realize the heat and the compound storage of refrigeration cold of low grade residual heat to the conversion of chemisorbed potential energy.
In second stage, the heat chemistry alternating temperature absorption cold and heat combined supply stage of low grade residual heat also is the energy grade improvement stage of low grade residual heat.The course of work comprise when extraneous user's cooling energy supply solid-the solid/liquid/gas reactions device during to the absorption refrigeration process of cryogenic vaporizer with to extraneous user's heat supply energy supply solid-the solid/liquid/gas reactions device is to the alternating temperature adsorption process of high-temperature evaporator, this stage energy supply is solid-the solid/liquid/gas reactions device in energy supply chemisorbed material and cold-producing medium generation chemosynthesis reaction; During cooling, utilize the cryogenic vaporizer inner refrigerant that evaporative phase-change takes place under low-temp low-pressure and realize the refrigeration cold of cold user side is discharged output to external world's heat absorption; During heat supply, implement the alternating temperature adsorption technology and realize that the energy grade of low grade residual heat promotes, utilize energy supply solid-the solid/liquid/gas reactions device in the energy supply chemisorbed material realize the release of hot user side heat is exported with a large amount of heats of adsorption that cold-producing medium discharged in the chemosynthesis reaction stage.This stage discharges by the transformation of energy of chemisorbed potential energy thermotropism satisfies the demand of extraneous user to cold and heat, realizes cold and heat combined supply.
The present invention has the following advantages compared to existing technology:
The first, the intensification ability is strong.With respect to traditional vapor compression formula heat pump, second class (heating type) liquid absorption heat pump and chemical heat pump, the present invention utilizes and adopts heat chemistry pressure-swing desorption and alternating temperature adsorption technology, can realize the lifting significantly of low grade residual heat energy grade, satisfy the heat recovery of more occasions;
The second, energy storage density height, energy loss are little.With respect to traditional sensible heat formula and latent heat formula energy storage device, the present invention utilizes chemisorbed potential energy to realize that the conversion of energy stores its energy storage density height; Simultaneously, the tradition energy storage device is owing to have the big temperature difference thereby bigger energy loss is arranged in the energy storage process with external environment, and the present invention adopts heat chemistry adsorption energy-storing technology, as long as cold-producing medium and the isolated chemical reaction that do not take place of chemisorbed energy storage material, energy will store always and not require the expenditure of energy and keep, thereby is convenient to long term storage;
The 3rd, realize the extraneous cold and heat combined supply and the compound storage of heat and cold.For traditional sensible heat and hidden heat energy storage mode, energy storage material of the same race can only store a kind of energy, be cold or heat, and for apparatus of the present invention, can realize the heat of low grade residual heat and the refrigeration compound storage of cold simultaneously and, especially be fit to the occasion of two kinds of energy requirements to extraneous user's cold and heat combined supply.
Description of drawings
Fig. 1 is the example structure schematic diagram;
Wherein: 1-low grade residual heat device, the 2-energy storage is consolidated-the solid/liquid/gas reactions device, 3-energy storage reactor heat exchange coil, 4-energy storage chemisorbed material, the 5-first cold-producing medium control valve, 6-assists solid-solid/liquid/gas reactions device, 7-auxiliary reactor heat exchange coil, 8-assistant chemical sorbing material, the 9-second cold-producing medium control valve, the 10-cold-producing medium, the 11-condenser, 12-condenser heat exchange coil, 13-the 3rd cold-producing medium control valve, the high/low temperature evaporimeter of 14-, 15-evaporimeter heat exchange coil, the extraneous cold user side of 16-, 17-the 4th cold-producing medium control valve, the 18-energy supply is consolidated-the solid/liquid/gas reactions device, 19-energy supply reactor heat exchange coil, the extraneous hot user side of 20-energy supply chemisorbed material and 21-.
Fig. 2 is the thermodynamic cycle figure of embodiment;
Wherein: A-M: cold-producing medium thermal balance line; F-G: assistant chemical sorbing material thermal balance line; B-N: energy storage/energy supply chemisorbed material thermal balance line; B-E-F-G-D: energy storage is solid-solid/liquid/gas reactions device heat chemistry pressure-swing desorption composite energy storage process; D-A-B: energy supply is solid-solid/liquid/gas reactions device cooling process; D-M-N: energy supply is solid-solid/liquid/gas reactions device heat chemistry alternating temperature absorption heat supplying process; T
e: cold user side cooling temperature; T
Out: hot user side heat supply temperature; T
In: the low grade residual heat actuation temperature; Δ T: low grade residual heat temperature increase temperature; T
c: the condensation temperature in heat chemistry composite energy storage stage; T
a: the adsorption temp of energy supply chemisorbed material; T
o: the traditional chemical heat pump is at the extraneous driving heat source temperature in heating desorption stage or the heat supply temperature of hot user side; P
H: the operating pressure in the heat chemistry alternating temperature absorption heat supply stage of low grade residual heat; P
c: the operating pressure in the heat chemistry composite energy storage stage of low grade residual heat; P
L: energy storage is solid-operating pressure in solid/liquid/gas reactions device heat chemistry pressure-swing desorption stage; P
e: energy supply is solid-and the solid/liquid/gas reactions device is at the low-temperature evaporation pressure to colod-application family, the external world end cooling stage.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, present embodiment comprises: low grade residual heat device 1, energy storage is consolidated-solid/liquid/gas reactions device 2, energy storage reactor heat exchange coil 3, energy storage chemisorbed material 4, the first cold-producing medium control valve 5, admittedly auxiliary-solid/liquid/gas reactions device 6, auxiliary reactor heat exchange coil 7, assistant chemical sorbing material 8, the second cold-producing medium control valve 9, cold-producing medium 10, condenser 11, condenser heat exchange coil 12, the 3rd cold-producing medium control valve 13, high/low temperature evaporimeter 14, evaporimeter heat exchange coil 15, the 4th cold-producing medium control valve 17, energy supply is consolidated-solid/liquid/gas reactions device 18, energy supply reactor heat exchange coil 19 and energy supply chemisorbed material 20, wherein: low grade residual heat device 1 links to each other with energy storage reactor heat exchange coil 3, energy storage is solid-and the outlet of solid/liquid/gas reactions device 2 links to each other with the import of the first cold-producing medium control valve 5, the outlet of the first cold-producing medium control valve 5 links to each other with the import of admittedly auxiliary-solid/liquid/gas reactions device 6, admittedly auxiliary-the outlet of solid/liquid/gas reactions device 6 links to each other with the import of the second cold-producing medium control valve 9, the outlet of the second cold-producing medium control valve 9 links to each other with the import of condenser 11, the outlet of condenser 11 links to each other with the import of the 3rd cold-producing medium control valve 13, the outlet of the 3rd cold-producing medium control valve 13 links to each other with the import of high/ low temperature evaporimeter 14,17 imports link to each other with the 4th cold-producing medium control valve in the outlet of high/low temperature evaporimeter 14, the import that the 4th cold-producing medium control valve 17 exports-solid/liquid/gas reactions device 18 solid with energy supply links to each other, energy storage chemisorbed material 4 load in energy storage solid-solid/liquid/gas reactions device 2 in, energy storage is solid-be provided with energy storage reactor heat exchange coil 3 in the solid/liquid/gas reactions device 2, assistant chemical sorbing material 8 is loaded in admittedly auxiliary-solid/liquid/gas reactions device 6, be provided with auxiliary reactor heat exchange coil 7 in admittedly auxiliary-solid/liquid/gas reactions device 6, energy supply chemisorbed material 20 load in energy supply solid-solid/liquid/gas reactions device 18 in, energy supply is solid-be provided with energy supply reactor heat exchange coil 19 in the solid/liquid/gas reactions device 18, be provided with condenser heat exchange coil 12 in the condenser 11, be provided with evaporimeter heat exchange coil 15 in the high/low temperature evaporimeter 14, energy supply reactor heat exchange coil 19 is connected with extraneous hot user side 21, and evaporimeter heat exchange coil 15 is connected with extraneous cold user side 16.
Under identical operating pressure, the operating temperature of described energy storage chemisorbed material 4 is higher than the operating temperature of assistant chemical sorbing material 8.
Under identical operating pressure, the operating temperature of described energy supply chemisorbed material 20 is higher than the operating temperature of assistant chemical sorbing material 8.
The flow direction of described cold-producing medium 10 is unidirectional, cold-producing medium 10 flow through successively energy storage solid-solid/liquid/gas reactions device 2, auxiliary solid-solid/liquid/gas reactions device 6, condenser 11, high/low temperature evaporimeter 14, energy supply be solid-solid/liquid/gas reactions device 18.
Described energy storage is solid-solid/liquid/gas reactions device 2, energy storage reactor heat exchange coil 3, energy storage chemisorbed material 4, the first cold-producing medium control valve 5, auxiliary solid-solid/liquid/gas reactions device 6, auxiliary reactor heat exchange coil 7 and assistant chemical sorbing material 8, constitute heat chemistry pressure-swing desorption composite energy storing device.
Described high/low temperature evaporimeter 14, evaporimeter heat exchange coil 15, the 4th cold-producing medium control valve 17, energy supply be solid-solid/liquid/gas reactions device 18, energy supply reactor heat exchange coil 19 and energy supply chemisorbed material 20, constitute heat chemistry alternating temperature absorption heat and cold supplier.
Described heat chemistry pressure-swing desorption composite energy storing device, utilize the suction-operated of assistant chemical sorbing materials 8 in admittedly auxiliary-solid/liquid/gas reactions device 6, energy storage is consolidated-solid/liquid/gas reactions device 2 interior energy storage chemisorbed materials 4 enforcement pressure-swing desorptions, low grade residual heat device 1 for energy storage solid-solid/liquid/gas reactions device 2 in energy storage chemisorbed materials 4 heat of desorption is provided, from energy storage solid-solid/liquid/gas reactions device 2 in energy storage chemisorbed materials 4 cold-producing medium of separating sucking-off flow into auxiliary solid-solid/liquid/gas reactions device 6 in by 8 absorption of assistant chemical sorbing material.
Described heat chemistry alternating temperature absorption heat and cold supplier, when being used for extraneous user's cooling, high/low temperature evaporimeter 14 is operated in worst cold case, is cryogenic vaporizer, utilizes cryogenic vaporizer 14 inner refrigerant generation evaporative phase-changes to realize the refrigeration cold of cold user side is discharged output to external world's heat absorption; When being used for extraneous user's heat supply, high/low temperature evaporimeter 14 is operated in worst hot case, be high-temperature evaporator, utilize energy supply solid-solid/liquid/gas reactions device 18 in energy supply chemisorbed materials 20 realize the heat of hot user side is discharged output with the heat of adsorption that cold-producing medium generation chemosynthesis reaction discharges.This device discharges by the transformation of energy of chemisorbed potential energy thermotropism and satisfies the demand of extraneous user to cold and heat, realizes cold and heat combined supply.
Described heat chemistry alternating temperature absorption heat and cold supplier is positioned at heat supply during the stage, to energy supply solid-solid/liquid/gas reactions device 18 implements heat chemistry alternating temperature adsorption technology with the adsorption process between the high/low temperature evaporimeter 14 and realizes that the energy grade of low grade residual heat promotes, realization heat supply stage output temperature is higher than the intensification purpose of energy storage stage input temp.
The present embodiment course of work comprises: the heat chemistry pressure-swing desorption composite energy storage stage of low grade residual heat and the heat chemistry alternating temperature of low grade residual heat absorption cold and heat combined supply stage, wherein:
1) the heat chemistry pressure-swing desorption composite energy storage stage of low grade residual heat, also be the heat of low grade residual heat and the cold storage stage that freezes: at first open the first cold-producing medium control valve 5, close the second cold-producing medium control valve 9, implement energy storage solid-the transformation heating desorption process of solid/liquid/gas reactions device 2, utilize the suction-operated of assistant chemical sorbing materials 8 in admittedly auxiliary-solid/liquid/gas reactions device 6 that energy storage chemisorbed material 4 is carried out the heat chemistry pressure-swing desorption, reduce the actuation temperature of extraneous thermal source, this process utilize low grade residual heat device 1 by energy storage reactor heat exchange coil 3 for energy storage solid-solid/liquid/gas reactions device 2 in energy storage chemisorbed materials 4 heat of desorption is provided, make it that chemical breakdown reaction take place, the refrigerant vapour of separating sucking-off flows in admittedly auxiliary-solid/liquid/gas reactions device 6 adsorbed by assistant chemical sorbing material 8 through the first cold-producing medium control valve 5, the heat of adsorption that assistant chemical sorbing material 8 discharges by auxiliary reactor heat exchange coil 7 by extraneous heat sink taking away, finish energy storage solid-the heat chemistry transformation heating desorption process of solid/liquid/gas reactions device 2; Secondly, open the second cold-producing medium control valve 9, close the first cold-producing medium control valve 5, implement the heating desorption process of admittedly auxiliary-solid/liquid/gas reactions device 6 to condenser 11, utilize low grade residual heat device 1 to provide heat of desorption for assistant chemical sorbing materials 8 in admittedly auxiliary-solid/liquid/gas reactions device 6 by auxiliary reactor heat exchange coil 7, make it that chemical breakdown reaction take place, the refrigerant vapour of separating sucking-off flows into condenser 11 through the second cold-producing medium control valve 9 and condenses into liquid, the heat of condensation that discharges by extraneous heat sink taking away, is finished the heating desorption process of admittedly auxiliary-solid/liquid/gas reactions device 6 by condenser heat exchange coil 12.This stage utilizes low grade heat energy to realize the heat and the compound storage of refrigeration cold of low grade residual heat to the conversion of chemisorbed potential energy.
2) the heat chemistry alternating temperature of the low grade residual heat absorption cold and heat combined supply stage, open the 4th cold-producing medium control valve 17, close the 3rd cold-producing medium control valve 13, energy supply solid-implement chemosynthesis reaction between solid/liquid/gas reactions device 18 and the high/low temperature evaporimeter 14, the course of work mainly comprise when end 16 coolings of colod-application family, external world energy supply solid-solid/liquid/gas reactions device 18 during to the absorption refrigeration process of cryogenic vaporizer 14 with to hot user side 21 heat supplies in the external world energy supply consolidate-solid/liquid/gas reactions device 18 is to the heat chemistry alternating temperature adsorption process of high-temperature evaporator 14; When end 16 coolings of colod-application family, the external world, high/low temperature evaporimeter 14 is operated in worst cold case, be cryogenic vaporizer, utilize energy supply solid-solid/liquid/gas reactions device 18 in the suction-operated of energy supply chemisorbed materials 20, make cryogenic vaporizer 14 interior cold-producing mediums that evaporative phase-change take place under low-temp low-pressure and absorb heat, realize the refrigeration cold of cold user side 16 is discharged output by evaporimeter heat exchange coil 15 to the external world; When hot user side 21 heat supplies in the external world, high/low temperature evaporimeter 14 is operated in worst hot case, be high-temperature evaporator, energy supply solid-implement the energy grade lifting that heat chemistry alternating temperature adsorption technology is realized low grade residual heat between solid/liquid/gas reactions device 18 and the high-temperature evaporator 14, chemosynthesis reaction under energy supply chemisorbed material 20 and the cold-producing medium generation high temperature discharges a large amount of heats of adsorption, realize the heat of hot user side 21 is discharged output by energy supply reactor heat exchange coil 19, realize that heat supply stage output temperature is higher than the intensification purpose of energy storage stage input temp.This stage discharges by the transformation of energy of chemisorbed potential energy thermotropism satisfies the demand of extraneous user to cold and heat, realizes cold and heat combined supply.
As shown in Figure 2, the thermodynamic cycle process of present embodiment device has the operating pressure of four steps, comprising: the operating pressure P in the heat chemistry alternating temperature absorption heat supply stage of low grade residual heat
H, the operating pressure P in the heat chemistry composite energy storage stage of low grade residual heat
c, energy storage is solid-the operating pressure P in solid/liquid/gas reactions device heat chemistry pressure-swing desorption stage
L, energy supply is solid-and the solid/liquid/gas reactions device is in the low-temperature evaporation pressure P to colod-application family, the external world end cooling stage
eWith high temperature evaporation pressure P to the hot user side heat supply stage of the external world
HT
eBe the low grade residual heat cryogenic temperature of cold user side 16, T
cBe the condensation temperature in heat chemistry composite energy storage stage, T
aBe the adsorption temp of energy supply chemisorbed material, T
InBe the extraneous driving heat source temperature of low grade residual heat in the present embodiment in the heat chemistry pressure-swing desorption composite energy storage stage, T
OutBe the heat supply temperature to the hot user side 21 in the external world after heat chemistry alternating temperature absorption energy grade promotes of low grade residual heat in the present embodiment, T
oFor the traditional chemical heat pump at the extraneous driving heat source temperature in heating desorption stage or the heat supply temperature of hot user side.
In the heat chemistry pressure-swing desorption composite energy storage stage of low grade residual heat, realize that to the conversion of chemisorbed potential energy the heat of low grade residual heat and refrigeration cold store by low grade heat energy.Energy storage is solid-and the heat chemistry pressure-swing desorption thermodynamic cycle process of solid/liquid/gas reactions device 2 is B-E-F, and operating pressure is P
L, the heating desorption thermodynamic cycle process of admittedly auxiliary-solid/liquid/gas reactions device 6 is F-G-D, operating pressure P
c
The heat chemistry alternating temperature absorption cold and heat combined supply stage of low grade residual heat, satisfy the demand of extraneous user by chemisorbed potential energy thermotropism transformation of energy release to cold and heat, realize cold and heat combined supply, wherein: energy supply is solid-solid/liquid/gas reactions device 18 in the absorption refrigeration thermodynamic cycle process of energy supply chemisorbed materials 20 be D-A-B, operating pressure is P
e, energy supply is solid-solid/liquid/gas reactions device 18 in the heat chemistry alternating temperature absorption heat supply thermodynamic cycle process of energy supply chemisorbed materials 20 be D-M-N, operating pressure is P
H
Compare with the traditional chemical adsorption heat pump, because the present embodiment utilization is auxiliary solid-suction-operated of solid/liquid/gas reactions device 6 to energy storage solid-the solid/liquid/gas reactions device implements heat chemistry voltage transformation desorption technique (B-E-F-G-D), makes required extraneous driving heat source temperature of system regeneration stage by original T
o(state point C) is reduced to T
In(state point E) significantly reduced the driving heat source temperature of device, thereby can enlarge the Applicable temperature scope of low grade residual heat, realizes the effective recycling to the low waste heat of temperature.
With traditional chemical again adsorption heat pump compare, present embodiment adopt energy supply solid-solid/liquid/gas reactions device 18 is to heat chemistry alternating temperature adsorption technology (the cooling D-A-B of high/low temperature evaporimeter 14, heat supply D-M-N) improved traditional suction type D-C, control the stability that circulating pressure has strengthened output heat energy temperature grade by the operating pressure of high/low temperature evaporimeter 14, thus overcome traditional chemical again adsorption heat pump cause circulating pressure fluctuation and output heat energy temperature grade problem of unstable because of the reaction rate difference.
Present embodiment energy supply solid-implement heat chemistry alternating temperature adsorption technology D-M-N between solid/liquid/gas reactions device 18 and the high-temperature evaporator 14, make energy supply consolidate-solid/liquid/gas reactions device 18 is at the operating pressure P of heat supply stage D-M-N
HBe higher than the traditional chemical operating pressure P of adsorption heat pump again
c, the single argument characteristic corresponding mutually according to heat chemistry adsorption reaction operating temperature and operating pressure, energy supply is solid-solid/liquid/gas reactions device 18 to extraneous heat outputting can the temperature grade will be by original T
o(state point C) is elevated to T
Out(state point N), its intensification ability is greatly improved, thereby can obtain the more heat energy of high-energy grade, realizes that the energy grade of low grade residual heat promotes, and realizes heat supply stage output temperature T
OutBe higher than energy storage stage input temp T
InThe intensification purpose.
Claims (4)
1. composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply, comprise: the low grade residual heat device, two cold-producing medium control valves, condenser and condenser heat exchange coil, it is characterized in that, also comprise: heat chemistry pressure-swing desorption composite energy storing device and heat chemistry alternating temperature absorption heat and cold supplier, wherein: the low grade residual heat device links to each other with heat chemistry pressure-swing desorption composite energy storing device, the import of the heat chemistry pressure-swing desorption composite energy storing device and the first cold-producing medium control valve links to each other, the outlet of the first cold-producing medium control valve links to each other with the import of condenser, the outlet of condenser links to each other with the import of the second cold-producing medium control valve, the outlet of the second cold-producing medium control valve links to each other with heat chemistry alternating temperature absorption heat and cold supplier, is provided with the condenser heat exchange coil in the condenser;
Described heat chemistry pressure-swing desorption composite energy storing device comprises: energy storage is solid-and the solid/liquid/gas reactions device, energy storage reactor heat exchange coil, the energy storage chemisorbed material, the 3rd cold-producing medium control valve, admittedly auxiliary-the solid/liquid/gas reactions device, auxiliary reactor heat exchange coil and assistant chemical sorbing material, wherein: energy storage is solid-and the outlet of solid/liquid/gas reactions device links to each other with the import of the 3rd cold-producing medium control valve, the outlet of the 3rd cold-producing medium control valve links to each other with the import of admittedly auxiliary-solid/liquid/gas reactions device, energy storage is solid-be provided with energy storage reactor heat exchange coil in the solid/liquid/gas reactions device, the assistant chemical sorbing material is loaded in admittedly auxiliary-solid/liquid/gas reactions device, be provided with the auxiliary reactor heat exchange coil in admittedly auxiliary-solid/liquid/gas reactions device, the energy storage chemisorbed material load in energy storage solid-the solid/liquid/gas reactions device in, energy storage reactor heat exchange coil is connected with the low grade residual heat device;
Described heat chemistry alternating temperature absorption heat and cold supplier comprises: high/low temperature evaporimeter, the evaporimeter heat exchange coil, the 4th cold-producing medium control valve, energy supply is consolidated-the solid/liquid/gas reactions device, energy supply reactor heat exchange coil and energy supply chemisorbed material, wherein: the import of high/low temperature evaporimeter links to each other with the outlet of the second cold-producing medium control valve, the outlet of high/low temperature evaporimeter links to each other with the 4th cold-producing medium control valve import, the import that the 4th cold-producing medium control valve exports-solid/liquid/gas reactions device solid with energy supply links to each other, the energy supply chemisorbed material load in energy supply solid-the solid/liquid/gas reactions device in, energy supply is solid-be provided with energy supply reactor heat exchange coil in the solid/liquid/gas reactions device, be provided with the evaporimeter heat exchange coil in the high/low temperature evaporimeter, energy supply reactor heat exchange coil is connected with extraneous hot user side, and the evaporimeter heat exchange coil is connected with extraneous cold user side.
2. composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply according to claim 1, it is characterized in that, described energy storage is solid-the solid/liquid/gas reactions device to described auxiliary solid-the transformation heating desorption process of solid/liquid/gas reactions device and described auxiliary solid-the solid/liquid/gas reactions device is to the heating desorption process of described condenser, constitutes heat chemistry pressure-swing desorption composite energy storage process.
3. composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply according to claim 1, it is characterized in that, described energy supply is solid-the solid/liquid/gas reactions device to the absorption refrigeration process of described high/low temperature evaporimeter and described energy supply solid-the solid/liquid/gas reactions device is to the alternating temperature adsorption process of described high/low temperature evaporimeter, constitutes heat chemistry alternating temperature absorption cold and heat combined supply process.
4. composite energy storage and supply device via thermochemical temperature swing adsorption combined cold-heat supply according to claim 1, it is characterized in that, the flow direction of described cold-producing medium is unidirectional, cold-producing medium flow through successively energy storage solid-the solid/liquid/gas reactions device, auxiliary solid-solid/liquid/gas reactions device, condenser, high/low temperature evaporimeter and energy supply be solid-the solid/liquid/gas reactions device.
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| CN101818967B (en) | 2012-08-29 |
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