CN100422662C - Adsorption heat pump and use of adsorbent as adsorbent for adsoprtion heat pump - Google Patents
Adsorption heat pump and use of adsorbent as adsorbent for adsoprtion heat pump Download PDFInfo
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- CN100422662C CN100422662C CNB2006101002226A CN200610100222A CN100422662C CN 100422662 C CN100422662 C CN 100422662C CN B2006101002226 A CNB2006101002226 A CN B2006101002226A CN 200610100222 A CN200610100222 A CN 200610100222A CN 100422662 C CN100422662 C CN 100422662C
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- Prior art keywords
- adsorption
- sorbing material
- temperature
- desorption
- zeolite
- Prior art date
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Classifications
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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
- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
A method of application for an adsorption material, including: heating the adsorption materials with adsorbed matter for desorption, cooling the dry adsorption materials to a adsorption temperature for the adsorption, and adsorbing once again, wherein, (1) the adsorptive contains zeolite including aluminum and phosphorous in its skeletal structure, (2) the adsorbent material is an aqueous vapor adsorbing material having a range of which the moisture adsorption amount difference in the adsorbing material found by an expression: the moisture adsorption amount difference is Q2-Q1 (where Q1 is the adsorption amount in relative aqueous vapor pressure phi 1 found based on an aqueous vapor desorption isothermal line measured at a desorption temperature T3 in the adsorption and desorption part, and Q2 is the adsorption amount in relative aqueous vapor pressure phi 2 found based on an aqueous vapor adsorption isothermal line measured at an adsorption temperature T4 in the adsorption and desorption part) is 0.15 g/g or more, in an area where the relative aqueous vapor pressure phi 2 of the adsorption and desorption part in an adsorption operation is within a range from 0.115 up to 0.18, and where the relative aqueous vapor pressure phi 1 of the adsorption and desorption part in an desorption operation is within a range from 0.1 up to 0.14, wherein T0=5-10 DEG C, T1=T3=90 DEG C, T2=T4=40 to 45 DEGC.
Description
Technical field
The present invention relates to adopt the adsorption heat pump of specific sorbing material and specific sorbing material is used sorbing material as adsorption heat pump use.
Background technology
On adsorption heat pump, adsorbed absorbate in order to regenerate---the sorbing material of water for example, the heating sorbing material makes the absorbate desorb, with drying sorbing material be cooled to be used for the temperature of the absorption of absorbate, be used for the absorption of absorbate once more.
With the absorption heat pump of the used heat of higher temperatures (more than 120 ℃), regeneration thermal source that heat energy is used for sorbing material practicability.But because the heat that the cooling water of general using cogeneration system, fuel cell, car engine or solar heat etc. obtain is below 100 ℃, it is lower temperature, so, the driving heat source of the absorption heat pump of practicability can not be used for now, effective utilization of 100 ℃ even lower 60 ℃～80 ℃ low-temperature waste heat be sought.Wherein, also in the practicability of doing one's utmost to seek to produce on the automobile of a large amount of used heat.
Even the operating principle of adsorption heat pump is identical, but according to available heat source temperature, the characterization of adsorption that sorbing material is required also has a great difference.For example, the gas engine cogeneration of heat and power process of using as the thermal source of high temperature side or the used heat temperature of solid polymer fuel cell are 60 ℃～80 ℃, and the cooling water temperature of car engine is 85 ℃～90 ℃.And the heat source temperature of cold side also is provided with the place and difference according to what install.For example the situation of automobile is the temperature that obtains at heat exchanger, and building and dwelling house etc. are the temperature of water-cooling tower and rivers water etc.That is, the operating temperature range of adsorption heat pump, low temperature side is that 25 ℃～35 ℃, high temperature side are 60 ℃～80 ℃ when being arranged on building etc. and locating, low temperature side is that 30 ℃～45 ℃, high temperature side are about 85 ℃～90 ℃ when being arranged on automobile etc. and locating.Like this, in order effectively to utilize used heat, even wish to have the little also drivable device of temperature difference of low temperature side thermal source and high temperature side thermal source and the sorbing material that is applicable to this device.
In addition, as the adsorption heat pump sorbing material, know representative be zeolite 13X or silica gel A type.
Again, also studied recently with the micella of interfacial agent structure as synthetic Jie of casting mold (in) porous molecular sieve (FSM-10 etc.) (spy opens flat 9-178292 number) or be referred to as AlPO as desiccant material
4Porous matter aluminum phosphate be molecular sieve zeolites such as (spy open flat 11-197439 number).
Again, adsorption heat pump is that this important point was introduced [chemical engineering thesis collection with the temperature dependency of the characterization of adsorption of sorbing material, the 19th volume, No. 6 (1993), p 1165-1170], introduced and demonstrate big temperature dependent SG3 (シ リ シ ア company of Fuji) and do not demonstrate big temperature dependent SG1 (same company).
And introducing as porous matter aluminum phosphate is the AlPO of molecular sieve
4-5 absorption property is to the dependence of temperature, specifically showed the absorption property [Colloid PolymSci277 (1999) p83-88] of 25 ℃ and 30 ℃.Introduced AlPO equally
4-5 temperature dependency, (pre-original text collection p91 is given a lecture in the 16th zeolite research presentations to have write down adsorption isotherm under 20 ℃, 25 ℃, 30 ℃, 35 ℃, 40 ℃ the adsorption process; Put down on November 21st, 12,22 days).
As the adsorption heat pump sorbing material, studied the use of various sorbing materials, if according to our research, even, on this aspect of absorption property, room for improvement is arranged still then for the little also drivable device of the temperature difference that is applicable to low temperature side thermal source and high temperature side thermal source.
Summary of the invention
For even sorbing material on every side is to install and also can fully move than higher temperature, must depress adsorbate at low relative vapor, and design to such an extent that amount makes equipment miniaturization must make the adsorption/desorption amount of sorbing material big less for the sorbing material that will use.And in order to utilize the thermal source of low temperature in the desorb (regeneration of sorbing material) of absorbate, desorption temperature must be low.Promptly as the adsorption heat pump sorbing material, importantly (1) depresses adsorbate (at high temperature adsorbable) at low relative vapor, (2) the adsorption/desorption amount is big, and (3) depress the sorbing material of desorb absorbate (but desorb at low temperatures) at high relative vapor.
The present invention, purpose is to provide the efficient adsorption heat pump of use at the sorbing material of low relative vapour pressure zone energy adsorption/desorption absorbate.
The invention provides the use of using sorbing material at the sorbing material of low relative vapour pressure zone energy adsorption/desorption absorbate as adsorption heat pump again.
The invention provides adsorption heat pump with in fact effective absorption property again.
Promptly, main points of the present invention are adsorption heat pump, has absorbate, the adsorption/desorption portion of the sorbing material of band adsorption/desorption absorbate, the evaporation part that connects the evaporation of carrying out absorbate of this adsorption/desorption portion, connect on the adsorption heat pump of condensation part of the condensation of carrying out absorbate of this adsorption/desorption portion, this sorbing material, be on the water vapor adsorption isotherms of 25 ℃ of mensuration, at relative vapour pressure more than 0.05,0.30 following scope has the sorbing material that relative vapour pressure changes the relative vapour pressure zone of adsorbance variation more than 0.18g/g of 0.15 o'clock water.
Again, main points of the present invention are that above-mentioned sorbing material is as the use of adsorption heat pump with sorbing material.
Another main points of the present invention are adsorption heat pump, it is characterized in that: in the adsorption/desorption portion of the sorbing material with absorbate, band adsorption/desorption absorbate, connect on the adsorption heat pump of evaporative condenser portion of the evaporative condenser that carries out absorbate of this adsorption/desorption portion, this sorbing material is to contain aluminium and phosphorus and heteroatomic zeolite in skeleton construction.
Again, another main points of the present invention are adsorption heat pump, it is characterized in that: in the evaporation part of the adsorption/desorption portion of sorbing material, the evaporation of carrying out absorbate that (c) connects this adsorption/desorption portion and (d) connect on the adsorption heat pump of condensation part of the condensation of carrying out absorbate of this adsorption/desorption portion with (a) absorbate, (b) band adsorption/desorption absorbate, this sorbing material is the zeolite that contains aluminium, phosphorus and silicon in skeleton construction, and this zeolite
29On the Si-NMR spectrum-108ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm ,-70ppm～-below 10% of integrated intensity area of the signal strength signal intensity of 123ppm.
And, present inventors, the operating temperature of adsorption/desorption portion that is conceived to heat pump different these points during with desorb when the absorption of absorbate, make great efforts the result of research, obtain following knowledge: the specific adsorbance difference that the desorption isotherm under the adsorption/desorption portion temperature the when adsorption isotherm under the adsorption/desorption portion temperature when adopting according to (1) adsorption operations and (2) desorb operation is tried to achieve is at the heat pump of the sorbing material of certain scope, have in fact useful absorption property, thereby reached the present invention.
That is, other main points of the present invention are as follows:
A kind of adsorption heat pump, it is characterized in that: in the evaporation part of the adsorption/desorption portion of sorbing material, the evaporation of carrying out absorbate that (c) connects this adsorption/desorption portion and (d) connect on the adsorption heat pump of condensation part of the condensation of carrying out absorbate of this adsorption/desorption portion with (a) absorbate, (b) band adsorption/desorption absorbate
(1) sorbing material contains the zeolite that comprises aluminium and phosphorus in skeleton construction at least;
(2) sorbing material is the water vapor adsorption material, this water vapor adsorption material when the adsorption operations of adsorption/desorption portion relative vapour pressure φ 2b at relative vapour pressure φ 1b more than 0.115 below 0.18, during the desorb operation of adsorption/desorption portion in the zone below 0.14 more than 0.1, have the adsorbance difference of utilizing the sorbing material that following formula obtains and reach the above scope of 0.15g/g
Adsorbance is poor=Q2-Q1
At this,
The adsorbance at the φ 1b place that Q1=tries to achieve according to the steam desorption isotherm that the desorb operating temperature (T3) of adsorption/desorption portion is measured down
The adsorbance at the φ 2b place that Q2=tries to achieve according to the water vapor adsorption isotherms that the adsorption operations temperature (T4) of adsorption/desorption portion is measured down
And
Equilibrium water vapour pressure under the thermophore temperature (T1) of equilibrium water vapour pressure/this adsorption/desorption portion of heating under the refrigerant temperature (T2) of φ 1b (the relative vapour pressure when desorb of adsorption/desorption portion is operated)=this condenser of cooling
Equilibrium vapor pressure under the refrigerant temperature (T2) of this adsorption/desorption portion of equilibrium vapor pressure/cooling under the cryogenic temperature (T0) that the φ 2b adsorption operations of the adsorption/desorption portion (time relative vapour pressure)=evaporation part generates
(at this, establish T0=5～10 ℃, T1=T3=90 ℃, T2=T4=40～45 ℃).
Description of drawings
Fig. 1 is the concept map of adsorption heat pump.
Fig. 2 is the water vapor adsorption isotherms (25 ℃) of the SAPO-34 (UOP LLC system) of embodiment 1.
Fig. 3 is the SAPO-34 (UOP LLC system) of embodiment 1
29The Si-MAS-NMR spectrum is measured record.
Fig. 4 is the water vapor adsorption isotherms (25 ℃) of the zeolite of embodiment 2.
Fig. 5 is embodiment 2
29The Si-MAS-NMR spectrum of zeolite measure record.
Fig. 6 is the water vapor adsorption isotherms (25 ℃) of the zeolite of embodiment 3.
Fig. 7 is the water vapor adsorption isotherms of the desorption process under the adsorption process, 90 ℃ under 40 ℃ of SAPO-34 (UOP LLC system) of embodiment 4.
Fig. 8 is the water vapor adsorption isotherms of the desorption process under the adsorption process, 90 ℃ under 45 ℃ of SAPO-34 (UOP LLC system) of embodiment 4.
Fig. 9 is the water vapor adsorption isotherms (25 ℃) of the zeolite of reference example.
Figure 10 is the zeolite of reference example
29The Si-MAS-NMR spectrum is measured record.
Figure 11 is the water vapor adsorption isotherms (25 ℃) of the silica gel A type of comparative example 2.
Figure 12 is the ALPO-5 water vapor adsorption isotherms (30 ℃) of comparative example 3.
In addition, the symbol among the figure, the 1st, adsorption tower, the 2nd, adsorption tower, the 3rd, absorbate pipe arrangement, the 4th, evaporimeter, the 5th, condenser, the 11st, thermophore pipe arrangement, the 111st, cooling water inlet, the 112nd, coolant outlet, the 113rd, hot water inlet, the 114th, hot water outlet, the 115th, transfer valve, the 116th, transfer valve, the 21st, thermophore pipe arrangement, the 211st, cooling water inlet, the 212nd, coolant outlet, the 213rd, hot water inlet, the 214th, hot water outlet, the 215th, transfer valve, the 216th, transfer valve, the 30th, absorbate pipe arrangement, the 31st, control valve, the 32nd, control valve, the 33rd, control valve, the 34th, control valve, the 300th, indoor set, the 301st, pump, the 41st, cold water pipe arrangement (inlet), the 42nd, cold water pipe arrangement (outlet), the 51st, cooling water pipe (inlet), the 52nd, cooling water pipe (outlet).
The specific embodiment
Below be described in more detail the present invention.
The structure of＜adsorption pump 〉
At first, with adsorption heat pump shown in Figure 1 be the structure of example explanation adsorption heat pump.
Adsorption heat pump, mainly by constituting: absorbate, fill the sorbing material of adsorbable/desorb absorbate and the heat that the adsorption/desorption of absorbate produces passed to the adsorption/desorption portion (adsorption tower 1 and 2, below, sometimes adsorption/desorption portion is called adsorption tower) of thermophore, the refrigeration (cold) that will utilize the evaporation of absorbate to obtain take out outside evaporation part (evaporimeter 4), the heat energy that will utilize the condensation of absorbate to obtain is emitted outside condensation part (condenser 5) with the lower part.
Evaporimeter 4 is enclosed cold-producing medium (being water in this form of implementation) under inside roughly keeps the state of vacuum, in this evaporimeter 4 heat exchanger 43 is set, this heat exchanger 43 is used for making on indoor set 300 and thermophore that carried out heat exchange to the indoor air that blows out (this form of implementation is to mix the fluid that ethylene glycol is anti-icing fluid in water) and cold-producing medium heat exchange.
Filled the adsorption tower 1 and 2 of sorbing material, utilized absorbate pipe arrangement 30 to interconnect, on this absorbate pipe arrangement 30, control valve 31～34 has been set.In addition, absorbate exists as the liquid of the steam of absorbate or absorbate and with the mixture of steam in the absorbate pipe arrangement.
On absorbate pipe arrangement 30, connect evaporimeter 4 and condenser 5.Adsorption tower 1 and 2 connects between evaporimeter 4, condenser 5 side by side, is provided for the backflow pipe arrangement 3 of absorbate (condensed water that the is fit to regeneration) Returning evaporimeter 4 in condenser condenses between condenser 5 and evaporimeter 4.In addition, symbol 41 is the inlets that become from the cold water of evaporimeter 4 output refrigeration, and symbol 51 is the inlets to the cooling water of condenser 5. Symbol 42 and 52 is respectively the outlet of cold water and cooling water.Again, on cold water pipe arrangement 41 and 42, connection is used for carrying out the indoor set 300 of heat exchange and the pump 301 of recirculated cooling water with the interior space (conditioned space).
On adsorption tower 1, connect thermophore pipe arrangement 11 respectively, on adsorption tower 2, connect thermophore pipe arrangement 21, on this thermophore pipe arrangement 11 and 21, transfer valve 115 and 116 and 215 and 216 are set respectively.Again, thermophore pipe arrangement 11 and 21 flows through respectively to become and is used to heat or cool off the heating source of the sorbing material in adsorption tower 1 and 2 or the thermophore of cooling source.Thermophore has no particular limits, and the sorbing material that can effectively heat in the cooling adsorption tower gets final product.
Hot water, the switching that utilizes transfer valve (3 logical valve) 115,116,215 and 216 from enter the mouth 113 with and/or 213 import, by each adsorption tower 1 with and/or 2, from export 114 with and/or 214 derive.The switching that cooling water also utilizes same transfer valve 115,116,215 and 216 from enter the mouth 111 with and/or 211 import, by each absorber 1 with and/or 2, from export 112 with and/or 212 derive.
Again, the refrigerant piping that connects evaporimeter 4 and adsorption tower 1,2 and be connected condenser 5 and the refrigerant piping of adsorption tower 1,2 on, the control valve 31～34 that opens and closes each refrigerant piping is set respectively, the 3 logical valves 115,116,215,216 that these control valves 31～34, the pump 301 that makes the thermophore circulation and control thermophore flow are subjected to electronic-controlled installation (figure does not show) control.
Again, thermophore pipe arrangement 11 with and/or 21 on, the off-premises station that connection can set with ambient atmos with carrying out heat exchange, the thermal source that produces hot water, the pump (all not showing among the figure) of circulation thermophore.Have no particular limits as thermal source, for example can enumerate the cogeneration of heat and power process of car engine, gas engine or combustion gas turbine etc. and fuel cell etc., when using, can enumerate car engine, automobile fuel battery example as automobile as desirable thermal source again.
＜adsorption heat pump operation principle summary 〉
Below, introduce the action summary of the aircondition (adsorption type heat pump) of this form of implementation.By making pump 301 actions, the thermophore that circulates between indoor set 300 and evaporimeter 4 evaporates and the cooling thermophore liquid refrigerant (being suitable for water) in the evaporimeter 4, and cooling is to the indoor air that blows out.Meanwhile, switching control valve 31～34 and 3 logical valves 115,116,215,216 make either party adsorption tower in 2 adsorption towers 1,2 carry out absorption process, and the opposing party's adsorption tower breaks away from operation (step for regeneration).
Specifically, in that the 1st adsorption tower 1 is made as absorption process the 2nd adsorption tower 2 is made as when breaking away from operation, open control valve 31, and closed control valve 33, under this state, 3 logical valves 115 are communicated with cooling water inlet 111 sides, 3 logical valves 116 are communicated with coolant outlet 112 sides, simultaneously, closed control valve 32, and open control valve 34, under this state, 3 logical valves 215 are communicated with hot water inlet's 213 sides, 3 logical valves 216 are communicated with hot water outlet 214 sides.
Like this, flow into the 1st adsorption tower 1 at the cold-producing medium (steam) of evaporimeter 4 evaporation and be adsorbed on wherein the sorbing material, the temperature of this sorbing material is used to keep suitable with the ambient atmos temperature from 111 the cooling water of entering the mouth simultaneously.
On the other hand, on the 2nd adsorption tower 2, because provide by the hot water of thermal source (being used for the vehicle time spent is to exercise to use engine) heating, so the sorbing material in the 2nd adsorption tower 2 is deviate from the cold-producing medium that adsorbs when absorption process by hot water inlet 213.And the cold-producing medium of deviating from (steam) cools off condensation once more at condenser 5.
Through behind the given time, by switching control valve 31～34 and 3 logical valves 115,116,215,216, the 1st adsorption tower 1 can be switched to the disengaging operation, the 2nd adsorption tower 2 is switched to absorption process.By carrying out such switching repeatedly, can carry out continuous refrigerating operaton every given time.
＜sorbing material 〉
One of feature of the present invention is to be used for the sorbing material of adsorption heat pump.
＜sorbing material-1 〉
Sorbing material of the present invention, be on 25 ℃ of water vapor adsorption isotherms of measuring down, in relative vapour pressure scope below 0.30 more than 0.05, have adsorbance that relative vapour pressure changes 0.15 o'clock water change more than the 0.18g/g, be preferably in the sorbing material in the relative vapour pressure zone more than the 0.2g/g.Preferably the adsorbance of the scope water below 0.20 more than 0.05 change more than the 0.18g/g, be preferably in the sorbing material more than the 0.2g/g.
Though absorbate is adsorbed on the sorbing material as steam, sorbing material, ideal is the adsorbance variation material greatly at narrow relative vapour pressure scope absorbate.Its reason is, if the adsorbance at narrow relative vapour pressure scope absorbate changes greatly, then under similarity condition for the amount that obtains the equal necessary sorbing material of adsorbance reduces, also can drive adsorption heat pump even the temperature difference of cooling thermal source and heating thermal source is little.
Below, from following research can desorbing material preferably have the reason of above-mentioned character.
At first, the operation vapour pressure scope of adsorption heat pump, definite by desorb side relative vapour pressure (φ 1a) and absorption side relative vapour pressure (φ 2a), and φ 1 and φ 2 can utilize following formula to calculate, and exercisable relative vapour pressure scope between φ 1a and the φ 2a.
Desorb side relative vapour pressure (φ 1a)=equilibrium vapor pressure (Tlow1)/equilibrium vapor pressure (Thigh)
Absorption side relative vapour pressure (φ 2a)=equilibrium vapor pressure (Tcoo1)/equilibrium vapor pressure (Tlow2)
At this, each symbolic significance is as follows:
Thigh (high temperature heat source temperature): the temperature of the thermophore that heats when regenerating sorbing material from the desorbed of adsorbed materials absorbate
Tlow1 (low-temperature heat source temperature): the temperature of the absorbate of condensation part
Tlow2 (low-temperature heat source temperature): the temperature of the thermophore that the sorbing material after will regenerating is cooled when being used to adsorb
Tcoo1 (refrigeration generates temperature): the temperature of the refrigeration that the temperature of the absorbate of evaporation part promptly generates
In addition, equilibrium vapor pressure, the equilibrium vapor pressure curve of use absorbate can be tried to achieve according to temperature.
Below, the operation vapour pressure scope when exemplifying absorbate and being water.When 30 ℃ of 80 ℃ of high temperature heat source temperature, low-temperature heat source temperature, operation vapour pressure scope (φ 1a～φ 2a) is 0.09～0.29.When 30 ℃ of 60 ℃ of same high temperature heat source temperature, low-temperature heat source temperature, operation relative vapour pressure scope (φ 1a～φ 2a) is 0.21～0.29.Again, if, calculate that the used heat that utilizes car engine drives the situation of adsorption heat pump, then about 90 ℃ of high temperature heat source temperature, 30 ℃ of low-temperature heat source temperatures according to the record that the spy opens 2000-140625 number, at this moment, operation relative vapour pressure scope (φ 1a～φ 2a) is 0.06～0.29.
According to above analysis, when utilizing the used heat of gas engine cogeneration of heat and power process, solid polymer fuel cell or car engine to drive adsorption heat pump, can consider to operate relative vapour pressure scope (φ 1a～φ 2a) is 0.05～0.30, more preferably 0.06～0.29.That is, the material that the variation of adsorbance is big in this operational humidity scope is good.Therefore, normally in the scope of relative vapour pressure 0.05～0.30, it is good to be preferably in the material that 0.06～0.29 scope adsorbance changes greatly.
For example hypothesis utilize adsorption heat pump obtain 3.0kw (=10, the situation of refrigerating capacity 800kJ/hr).At this, 3.0kw is the refrigerating capacity of the air-conditioning that uses of general air conditioning for automobiles.The capacity of adsorption heat pump can be considered preferably at least below 15 liters according to the investigation of the engine room of various vehicles.
" adsorbance is poor "
Below, ask the adsorbent weight that can fill in the capacity below 15 liters.
As the parts that should be contained in engine room, adsorption tower body, evaporimeter, condenser and control valve class are arranged.These roughly must be formed the component design of one at the capacity below 15 liters.According to our research, think that the volume that can make evaporimeter, condenser and control valve class is formed on about 4.5 liters.Therefore, the capacity of adsorption tower body is roughly below 10.5 liters.Because the filling rate of the adsorbent in the adsorption tower and the bulk density of adsorbent, be about 30% usually respectively, the 0.6kg/ liter, so the adsorbent weight that can fill (W) is about 10.5 * 30% * 0.6=1.89kg.
The following describes the desired characteristic of adsorbent.
The refrigerating capacity R of adsorption type heat pump represents with following formula A.
R=(W Δ Q η
cΔ H/ τ) η
h... (formula A)
At this, W is the adsorbent weight that 1 adsorption tower (one-sided) is filled; Δ Q is equilibrium adsorption capacity amplitude---the above-mentioned adsorbance poor (Q2-Q1) in when absorption and the condition when breaking away from; η
cBe absorption amplitude efficient, the ratio of the actual absorption amplitude in the switching time of expression relative equilibrium adsorbance amplitude △ Q; Δ H is an evaporation of water latent heat; τ is absorption process and the switching time that breaks away from operation; η
hBe the thermal efficiency, considered that adsorbent or heat exchanger change the heat loss that causes owing to occurrence temperature between hot water temperature and the cooling water temperature.
R is 3kw as described above like that, and W is 1.89kg/2=0.95kg.Because of the research according to our past, it is suitable that τ is roughly 60sec, Δ H, η in addition
c, η
hValue can roughly be respectively 2500kJ/kg, 0.6,0.85, so, if ask Δ Q according to (formula A), Δ Q=R/W/ η then
c/ Δ H τ/η
h=3.0/0.95/0.6/250060/0.85=0.149kg/kg
That is, with the adsorbent that uses on the adsorption type heat pump, Δ Q is preferably in more than the 0.18g/g more than 0.15g/g as automobile, and is better more than 0.20g/g.
Though the explanation prerequisite of more than carrying out is to be used on the automobile,, then much less also can be applicable to fixing well with waiting other purposes if satisfy above-mentioned characteristic.
According to above research, can determine the sorbing material that uses on the adsorption heat pump of the present invention.
In addition, change the sorbing material of adsorbance difference more than 0.18g/g of 0.15 o'clock water at relative vapour pressure more than 0.05,0.30 following relative vapour pressure, though as long as satisfying this characteristic is not particularly limited, material likely is a zeolite.Because zeolite is crystallization, so the pore volume that is used to adsorb is decided by skeletal density.13X (skeletal density 12.7T/1000 as an example of the zeolite of skeletal density minimum
) maximal absorptive capacity be about 0.30g/g.Therefore, if the adsorbance at lower limit 0.05 place of the relative vapour pressure of the present invention regulation greater than 0.15g/g, the adsorbance that then can not obtain 0.18g/g is poor.Therefore, on water vapor adsorption isotherms, the adsorbance at relative vapour pressure 0.05 place will be preferably in below the 0.12g/g below 0.15g/g, below the 0.10g/g, it is desirable to below the 0.07g/g, and better is below the 0.05g/g.
＜sorbing material-2 〉
Another feature of sorbing material of the present invention is: be when the adsorption operations of adsorption/desorption portion relative vapour pressure (φ 2b) at relative vapour pressure (φ 1b) more than 0.115 below 0.18, during the desorb operation of adsorption/desorption portion in the zone below 0.14 0.1 or more, have the water vapor adsorption material that the adsorbance difference of utilizing the sorbing material that following formula obtains reaches the scope more than the 0.15g/g.
Adsorbance is poor=Q2-Q1
At this,
The adsorbance at the φ 1b place that Q1=tries to achieve according to the steam desorption isotherm that the desorb operating temperature (T3) of adsorption/desorption portion is measured down
The adsorbance at the φ 2b place that Q2=tries to achieve according to the water vapor adsorption isotherms that the adsorption operations temperature (T4) of adsorption/desorption portion is measured down
And
Equilibrium water vapour pressure under the thermophore temperature (T1) of equilibrium water vapour pressure/this adsorption/desorption portion of heating under the refrigerant temperature (T2) of φ 1b (the relative vapour pressure when desorb of adsorption/desorption portion is operated)=this condenser of cooling
Equilibrium vapor pressure under the refrigerant temperature (T2) of this adsorption/desorption portion of equilibrium vapor pressure/cooling under the cryogenic temperature (T0) that the φ 2b adsorption operations of the adsorption/desorption portion (time relative vapour pressure)=evaporation part generates
(at this, establish T0=5～10 ℃, T1=T3=90 ℃, T2=T4=40～45 ℃).
The adsorbance of sorbing material of the present invention is poor, though limited especially by above-mentioned formula, better sorbing material is by the special sorbing material that limits of any one condition of following (A)～(C).
(A) T0 is 10 ℃, and T2 is 40 ℃
(B) T0 is 5 ℃, and T2 is 40 ℃
(C) T0 is 10 ℃, and T2 is 45 ℃
The performance of sorbing material below is described with reference to Fig. 1 as described above.
At first, describe with closed control valve on Fig. 1 31 and 34, the situation of opening control valve 32 and 34.
On this situation, absorption is filled in the sorbing material heating in the adsorption tower 2 from the steam that evaporimeter 4 provides.At this moment, adsorption tower 2 utilizes thermophore (for example cooling water) cooling of flowing through from thermophore pipe 211,21, reduces phlegm and internal heat.In addition, the temperature from 211 thermophores that provide (cooling water) are provided with cooling adsorption tower 2 (adsorption/desorption portion) at this moment is made as T2.
On the other hand, control the temperature of evaporimeter 4 according to the purpose that generates refrigeration.At this moment, suction side relative vapour pressure φ 2b is defined by following formula.
Absorption side relative vapour pressure φ 2b=equilibrium water vapour pressure (T0)/equilibrium water vapour pressure (T2)
Equilibrium water vapour pressure (T0): the equilibrium water vapour pressure under the temperature T 0 of evaporimeter 4
Equilibrium water vapour pressure (T2): the equilibrium water vapour pressure under the thermophore temperature T 2 of adsorption tower 2
On the other hand, adsorption tower 1 is in desorb (regeneration) process simultaneously, is filled in the sorbing material utilization regeneration thermal source (temperature of the thermophore of heating adsorption/desorption portion in the adsorption tower 1.This temperature is made as T1) regeneration.Condenser 5 is provided by the water quench that provides by thermophore pipe 51, makes water vapor condensation.At this moment, desorb side relative vapour pressure φ 1 is defined by following formula.
Desorb side relative vapour pressure φ 1b=equilibrium vapor pressure (T2)/equilibrium vapor pressure (T1)
Equilibrium vapor pressure (T2): the equilibrium vapor pressure under the temperature of condenser 5 (equilibrium vapor pressure under the thermophore temperature T 2 of=adsorption tower 2)
Equilibrium vapor pressure (T1): the equilibrium vapor pressure under the regenerated heat source temperature (T1) of adsorption tower 1
It is important in this that the temperature of the temperature in adsorption tower when absorption during with desorb (regeneration) is different.Therefore, in the present invention, it is poor that the adsorption isotherm when desorption isotherm in the time of can be according to desorb under the temperature and absorption under the temperature is obtained adsorbance, specifically utilizes following formula to calculate:
Adsorbance is poor=Q2-Q1
At this,
The adsorbance at the φ 1b place that Q1=tries to achieve according to the steam desorption isotherm that the desorb operating temperature (T3) of desorb portion is measured down
The adsorbance at the φ 2b place that Q2=tries to achieve according to the water vapor adsorption isotherms that the adsorption operations temperature (T4) of adsorption/desorption portion is measured down
And
Equilibrium vapor pressure under the thermophore temperature (T1) of equilibrium water vapour pressure/this adsorption/desorption portion of heating under the refrigerant temperature (T2) of φ 1b (the relative vapour pressure when desorb of adsorption/desorption portion is operated)=this condenser of cooling
Equilibrium vapor pressure under the refrigerant temperature (T2) of this adsorption/desorption portion of equilibrium vapor pressure/cooling under the cryogenic temperature (T0) that the φ 2b adsorption operations of the adsorption/desorption portion (time relative vapour pressure)=evaporation part generates
(at this, establish T0=5～10 ℃, T1=T3=90 ℃, T2=T4=40～45 ℃).
Sorbing material of the present invention utilizes adsorbance difference that above-mentioned formula obtains more than 0.15g/g, is preferably in more than the 0.18g/g.Though this adsorbance difference is the bigger the better, consider from the available material source material that satisfies desired properties, normally below 0.50g/g, in the reality below 0.40g/g, even below 0.35g/g.
In addition, above-mentioned adsorbance is poor, is 10 ℃ at for example (1) T0 specifically, and T2 is 40 ℃ a condition, and (2) T0 is 5 ℃, and T2 is 40 ℃ a condition, or (3) T0 is 10 ℃, and T2 measures under 45 ℃ the condition, and this adsorbance difference also can be more than 0.15g/g.
Required adsorbance difference is this point more than 0.15g/g, when supposing that adsorption heat pump is used for automobile, can derive according to following analysis.
When temperature, desorb " during absorption temperature "
At first, as described above, because the temperature of adsorbance when relying on absorption and the temperature during desorb, so the desorption isotherm under temperature when adsorption isotherm under the temperature when obtaining absorption and desorb.
During absorption, because the heating water quench that adsorption tower causes in order to suppress heat of adsorption, so, temperature (T4) when cooling water temperature (T2) roughly becomes absorption.On the other hand, during desorb, adsorption tower must heat of desorption, so hot water temperature (T1) temperature (T3) when becoming desorb.
Yet the thermophore temperature of adsorption heat pump is that (1) hot water temperature is because be so that the temperature of utilizing engine cooling water to obtain is roughly 90 ℃; (2) chilling temperature is because be so that the temperature that obtains with the ambient atmos heat exchange is roughly 40 ℃～45 ℃; (3) it roughly is 5～10 ℃ in order to make the necessary cold water temperature of cold wind.That is when, cold water temperature is prerequisite with the general vehicle of Japan roughly is 5～10 ℃.Again, chilling temperature is about 40 ℃ in Japan, is roughly about 45 ℃ in the high area of extraneous gas temperature.
Therefore, adsorption temp (T4) roughly is 40 ℃～45 ℃, and desorption temperature (T3) roughly is 90 ℃.
The present invention, be that required adsorption temp and the desorption temperature index as the performance of estimating sorbing material is adopted, any one adsorption isotherm at least and the desorption temperature that satisfy according to the adsorption isotherm that obtains under 40 ℃～45 ℃ of the adsorption temps are the desorption isotherm that obtains under 90 ℃, the condition of adsorbance difference more than 0.15g/g of utilizing above-mentioned formula to try to achieve.
" adsorbance is poor "
Above-mentioned adsorbance poor (more than 0.15g/g) is tried to achieve equally with sorbing material-1.
Though the explanation prerequisite of more than carrying out is to be used on the automobile,, then much less also can be applicable to fixing well with waiting other purposes if satisfy above-mentioned characteristic.
In addition, the adsorbance of the invention described above is poor, is that relative vapour pressure φ 2b is satisfied in the scope below 0.14 0.1 or more at relative vapour pressure φ 1b more than 0.15 below 0.18, during the desorb operation of adsorption/desorption portion when the adsorption operations of adsorption/desorption portion.This scope roughly is equivalent to the scope of the operation relative vapour pressure of adsorption heat pump.
Again, be positioned at the scope below 0.18 more than 0.115 at φ 1b and φ 2b, and φ 1b is more than or equal to the zone of φ 2b, when having this adsorbance difference and reach scope more than the 0.15g/g, even thinking before this as adsorption heat pump under the harsh temperature conditions that can not start, also helping operation.
In addition, above-mentioned sorbing material-2 contains at least from skeleton construction the zeolite of aluminium and phosphorus and selects.
The material of＜sorbing material 〉
Sorbing material of the present invention, preferably zeolite particularly preferably contains aluminium and phosphorus and heteroatomic zeolite in skeleton construction.At this said zeolite can be also artificial zeolite of natural zeolite, for example if the artificial zeolite then comprises the aluminum silicate, aluminate or phosphate class of International Zeolite Association (International Zeolite Association IZA) regulation etc.
At this, though in the aluminate or phosphate class also because ALPO
4-5 demonstrate hydrophobic characterization of adsorption and are not suitable as sorbing material of the present invention.As sorbing material of the present invention, for suitable use, for possess hydrophilic property, preferably the part with aluminium, phosphorus is replaced as hetero atoms such as silicon, lithium, magnesium, titanium, zirconium, vanadium, chromium, manganese, iron, cobalt, nickel, palladium, copper, zinc, gallium, germanium, arsenic, tin, calcium or boron.
Therein, also preferably replace the zeolite of the part of aluminium, phosphorus, it would be desirable zeolite, the logical SAPO that is called with the silicon displacement with silicon, magnesium, titanium, zirconium, iron, cobalt, zinc, gallium or boron.In addition, the hetero atom of these displacements is also two or more.
In the zeolite that uses as sorbing material among the present invention,, be in skeleton construction, to contain aluminium and phosphorus and heteroatomic zeolite, it is desirable to have the ratio that exists of the atom represented with following formula (1), (2) and (3) as aluminate or phosphate.
0.001≤x≤0.3 ...(1)
(in the formula, x represents the aluminium of the relative skeleton construction of hetero atom and the mol ratio of phosphorus and heteroatomic summation)
0.3≤y≤0.6 ...(2)
(in the formula, y represents the aluminium of the relative skeleton construction of aluminium and the mol ratio of phosphorus and heteroatomic summation)
0.3≤z≤0.6 ...(3)
(in the formula, z represents the aluminium of the relative skeleton construction of phosphorus and the mol ratio of phosphorus and heteroatomic summation)
And in existing in the ratio of above-mentioned atom, the heteroatomic ratio that exists preferably uses following formula (4) to represent:
0.003≤x≤0.2?5 ...(4)
(in the formula, x is identical with above-mentioned meaning)
Be more preferably with following formula (5) expression.
0.005≤x≤0.2 ...(5)
Even contain in skeleton construction in aluminium and phosphorus and the heteroatomic zeolite, also preferably hetero atom is a silicon atom, this zeolite
29On the Si-MAS-NMR spectrum-108ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm, be preferably in-70ppm～-below 10% of integrated intensity area of the signal strength signal intensity of 123ppm, be more preferably below 9.5%, it is desirable to especially below 9%.
Again, zeolite
29On the Si-MAS-NMR spectrum-70ppm～-the integrated intensity area of the signal strength signal intensity of 92ppm, be preferably in-70ppm～-more than 25% of integrated intensity area of the signal strength signal intensity of 123ppm, be more preferably more than 50%.
In addition, of the present invention
29Si-MAS-NMR spectrum, be with tetramethylsilane as standard substance, in the water drier, adsorbed with saturated that the water test material measures under following condition with room temperature preservation test material diel.
Device: Chemagnetic CMX-400
Gauge head: 7.5mmMAS gauge head
Resonance frequency: 79.445MHz
Impulse amplitude: 5.0 microseconds
The train of impulses: pulse
Stand-by period: 60 seconds
Revolution: 4000rps
Zeolite
29The spectrum of Si-MAS-NMR has provided the information about the bonding state of the Si in the zeolite, can be according to the position of peak value or the understanding Si bonding state that distributes.
Though desirable zeolite of the present invention comprises aluminium, phosphorus and silicon, the silicon atom in the zeolite is with SiO
2For unit exists.At this,
29On the spectrum of Si-MAS-NMR, near the peak value-90ppm is the situation that silicon atom combines with 4 silicon atoms atom in addition by oxygen atom.Relative therewith, near the peak value-110ppm is the situation that silicon atom combines with 4 silicon atoms by oxygen atom.That is, near the big zeolite of the peak strength-110ppm means between the silicon atom and gathers, the silicon atom on the zeolite dispersed low.
The zeolite that shows above-mentioned spectrum has the tendency that satisfies characterization of adsorption of the present invention.This can think that the dispersiveness of Si influences the characterization of adsorption of zeolite, and as described later, the dispersed high zeolite of Si has been given play to the performance of the sorbing material that is fit to adsorption heat pump especially.
On the other hand, the zeolite that uses as sorbing material in the present invention, preferably its skeletal density (framework) is at 10.0T/1, and 000
Above 16.0T/1,000
Below, be more preferably 10.0T/1,000
Above 15.0T/1,000
The zeolite of following scope.In this so-called skeletal density, be meant per 1,000
The oxygen of zeolite beyond the quantity of element of formation skeleton, this value is decided by the structure of zeolite.
Skeletal density is relevant with the pore capacity.Greatly then pore volume is little for general skeletal density, and the not enough tendency of adsorbance is arranged, and the tendency as the degradation of the sorbing material of adsorption heat pump is arranged.On the other hand, to become big absorption quantitative change big for adsorbable pore volume if skeletal density is little, but the density of sorbing material diminishes, and the tendency of intensity variation is arranged.
Structure as the zeolite that satisfies above-mentioned skeletal density, if with the definite coded representation of IZA, AFG, MER, LIO, LOS, PHI, BOG, ERI, OFF, PAU, EAB, AFT, LEV, LTN, AEI, AFR, AFX, GIS, KFI, CHA, GME, THO, MEI, VFI, AFS, LTA, FAU, RHO, DFO, EMT, AFY, * BEA etc. are then arranged, good enumerated AEI, GIS, KFI, CHA, GME, VFI, AFS, LTA, FAU, RHO, EMT, AFY, * BEA, zeolite with CHA, AEI or ERI structure is good, wherein also is that CHA constructs.
In addition, the structure of zeolite, utilize powder X-ray RD (powder X-ray line diffraction) to measure the XRD characteristic curve, (1996, ELSEVIER) upward the XRD characteristic curve of record is more definite with Collection Of Simulated XRD Powder Patterns Fof Zeolites.
Again, the Atlas of IZA Of Zeolites Structure Types (1996, put down in writing the relation of structure and skeletal density on ELSEVIER), can know skeletal density according to structure.
For example,, make atom such as silicon enter the silicoaluminophosphate of understanding as SAPO-34 in the skeleton construction of zeolite by employing, can have desirable absorption property as the aluminate or phosphate of CHA structure.
In addition, as sorbing material of the present invention, though preferably contain aluminium and phosphorus and heteroatomic zeolite in the skeleton construction, as long as but have above-mentioned sorbing material characteristic, zeolite is aluminum silicate also, at this moment, the part of intraskeletal silicon, aluminium (also can have in the time of aluminium all) is with other atom, for example displacements such as magnesium, titanium, zirconium, vanadium, chromium, manganese, iron, cobalt, zinc, gallium, tin, boron.In the situation of aluminum silicate, if the mol ratio of silicon and aluminium too hour, then as the situation of zeolite 13X, in low excessively sharply absorption of humidity zone; And when excessive, because too hydrophobic then adsorbed water less.Therefore, the zeolite that uses among the present invention, the mol ratio of silicon/aluminium is usually more than 4 below 20, is preferably in more than 4.5 below 18, is more preferably more than 5 below 16.
Above-mentioned zeolite comprise have can with other the form of cation type of cation exchange, as cation type at this moment, can enumerate transitional metals such as rare earth elements such as alkaline earth elements such as alkali elements such as proton, Li, Na, Mg, Ca, La, Ce, Fe, Co, Ni etc., proton, alkali element, alkaline earth element, rare earth element are more satisfactory.And proton, Li, Na, K, Mg, Ca are better.These zeolites can use separately, also can multiplely be used in combination, and also can be used in combination with other silica or aluminium oxide, active carbon, clay etc.
The pore diameter of sorbing material of the present invention is preferably in 3
More than, particularly be preferably in 3.1
More than.Be preferably in 10 again,
Below, wherein, also be preferably in 8
Below, be more preferably 7.5
Below.If pore diameter is excessive, then under as the relative humidity of purpose, may not adsorb, and if pore diameter is too small, the tendency that then has the hydrone as absorbate to be difficult to spread on sorbing material.
Again, sorbing material of the present invention, heat of adsorption is preferably in below the above 65kJ/mol of 40kJ/mol.Both, for the sorbing material of the adsorption heat pump that must utilize the thermal source desorb below 100 ℃, desorb also was important characteristic easily.Easily desorb degree and absorption affinity are inversely proportional to.Therefore, wish it is condensation latent heat as the heat of adsorption of the index that shows degree of absorption, and be not less than it, more than 40KJ/mol near water.Again, if heat of adsorption is excessive, then in distress to utilize the tendency of the thermal source desorb below 100 ℃.Therefore, the zeolite that preferably shows the heat of adsorption that the above 65kJ/mol of condensation latent heat of water is following.In addition, in this manual, method according to document [Colloid Polym Sci277 (1999) p83-88] record, measure (measuring 25 ℃ of temperature) in the time of by adsorbance and heat of adsorption and obtain differential heat of adsorption, and with the differential heat of adsorption of the scope of adsorbance from 0.005mol/g to 0.01mol/g as heat of adsorption.
As an example of the good especially sorbing material that uses among the present invention, can enumerate as CHA type (skeletal density=14.6 T/1,000
) the SAPO34 of SAPO (silicoaluminophosphate).
Zeolite of the present invention, as long as having its manufacture method of above-mentioned characteristic is not particularly limited, for example can open flat 4-37007 communique, spy and open flat 5-21844 communique, spy and open the method that flat 5-51533 communique, the U.S. are speciallyyed permit records such as No. 4440871 communique, utilize following method manufacturing with reference to the spy.In addition, the synthetic method of SAPO-34 is documented in the U.S. and speciallys permit on No. 4440871 communique.
Particularly, for example can enumerate following method as the manufacture method that is manufactured on the above-mentioned desirable zeolite that contains aluminium and phosphorus and silicon in the skeleton construction.
At first, aluminum feedstock, silica material, phosphate raw material and template are mixed the mediation aqueous gel.
As aluminum feedstock, can use pseudobochmite, aluminium isopropoxide, aluminium hydroxide, alumina sol, sodium aluminate etc.
As silica material, can use fumed silica, silicon dioxide gel, cataloid, waterglass, orthosilicic acid two fat, silicic acid methyl etc.
Can use phosphoric acid as phosphate raw material.In addition, also can use aluminum phosphate.
As template (template), can use tetramethylammonium, etamon, tetrapropylammonium, 4 grades of ammonium salts such as tetrabutylammonium, morpholine, two-n-propylamine, tripropyl amine (TPA), triethylamine, triethanolamine, piperidines, ethylenimine, the 2-picoline, N, N-diformazan benzylamine, N, the N-diethyl is for monoethanolamine, dicyclohexylamine, N, the N-dimethylethanolamine, choline, N, N '-lupetazin, 1,4-diazabicylo (2,2,2) octane, N-first diethanol amine, the N-methylethanolamine, the N-methyl piperidine, the 3-methyl piperidine, N-methyl ethylenimine, the 3-picoline, the 4-picoline, quininuclidinyl, N, N '-dimethyl-1,4-diazabicylo (2,2,2) octane ion, two-n-butylamine, neopentyl amine, two-n-amylamine, isopropylamine, the t-butylamine, ethylene diamin(e), pyrrolidines, the 2-imidazolidinone, two-isopropyl-ethamine, 1 grade of amine such as dimethyl cyclohexyl amine, 2 grades of amine, 3 grades of amine, polyamine.
Though aluminum feedstock, silica material, phosphate raw material and template order by merging is according to condition and difference, usually, at first, mixed phosphate raw material, aluminum feedstock, mixed silica raw material, template therein again.The composition of aqueous gel is represented with the mol ratio of oxide, generally is 0.02＜SiO
2/ P
2O
5＜20,0.02＜SiO
2/ Al
2O
3＜20,0.04＜SiO preferably
2/ P
2O
5＜10,0.04＜SiO
2/ Al
2O
3＜10.The pH of aqueous gel from 5 to 10, and preferably from 6 to 9.
In addition, in aqueous gel, also can suitably there be above-mentioned composition in addition simultaneously.As such composition, can enumerate the hydroxide or the hydrophilic organic solvents such as salt, alcohol of alkali metal or alkaline-earth metal.
The aqueous sol that is in harmonious proportion is put into pressure vessel, utilize the pressure that oneself produces, perhaps utilize the gas pressurized that does not hinder crystallization, under stirring or static condition, keep both fixed temperatures, carry out hydro-thermal like this and synthesize.
Normally 100 ℃～300 ℃ of the conditions that hydro-thermal is synthesized, preferably 120 ℃～250 ℃.Normally 5 hours～30 days reaction time, preferably 10 hours～15 days.
After hydro-thermal is synthetic, separate product, wash, drying, method such as fire is removed contained organic matter, obtains zeolite.
When processing zeolite, descend, generally can adopt inorganic binders such as aluminium oxide or silica to be shaped though must be noted that the absorption property that does not make zeolite in order to be used as the water vapor adsorption material.
Again, have desirable water vapor adsorption performance, beyond zeolite of the present invention, also can in sorbing material, contain silicon dioxide gel, middle porous silica, aluminium oxide, active carbon, clay etc. in order to make sorbing material.But obtain the good adsorption characteristic in order to depress at low relative vapor, the ratio of sorbing material mesolite of the present invention is usually more than 60% weight ratio, be preferably in more than 70% weight ratio, be more preferably more than 80% weight ratio, from the angle of characterization of adsorption, it is best having only zeolite to use as the water vapor adsorption material.
Again, when sorbing material being used on adsorption heat pump etc., in order to design set intensity, particle diameter, the shape of corresponding purposes, with reference to well-known method processing, use.For example, as the spy opened 2001-38188 number introduction, the adsorber particles that is used for adsorption heat pump was that 0.05mm～2mm left and right sides is suitable.Again, open as the spy and to introduce for 2000-18767 number like that, when using bonding agent to bond on the absorbent core, even must be to mix bonding agent and adsorber particles and make its dispersion, the intensity that adsorber particles can impaired degree yet.
＜operation method 〉
The operation method of adsorption type heat pump is described with Fig. 1.At the 1st stroke, closed control valve 31 and 34 is opened control valve 32 and 33, and the stroke of regenerating on adsorption tower 1 adsorbs stroke on adsorption tower 2.Again, operation transfer valve 115,116,215 and 216 makes hot water pass through thermophore pipe arrangement 11, makes cooling water pass through thermophore pipe arrangement 21.
For example, heat exchange such as the heat exchanger that cooling will utilize cooling tower etc. during adsorption tower 2 and ambient atmos, rivers water and the cooling water that is cooled are cooled to about 30 ℃～40 ℃ usually by 21 importings of thermophore pipe arrangement.Again, utilize the opening operation evaporimeter 4 interior water of control valve 32 to evaporate, become steam and flow into adsorption tower 2, be adsorbed on the sorbing material.Utilizing the saturated vapour pressure under the evaporating temperature (generally is 20 ℃～50 ℃ with corresponding sorbing material temperature, preferably 20 ℃～45 ℃, be more preferably 30 ℃～40 ℃) the adsorption equilibrium difference of pressing carry out moving of steam, on evaporimeter 4, obtain the refrigeration of the heat of gasification of corresponding evaporation, i.e. refrigeration output.Though determine absorption side relative vapour pressure φ 2a (is that the equilibrium vapor pressure of the absorbate under the cold water temperature that generates on divided by evaporimeter of equilibrium vapor pressure with the absorbate under the temperature of the cooling water of adsorption tower obtains at this φ 2a) according to the relation of the cold water temperature that produces on the temperature of the cooling water of adsorption tower and the evaporimeter, preferably under sorbing material that φ 2a has stipulated in than the present invention situation that relative vapour pressure of big ground adsorbed water steam is bigger, move.Because sorbing material that φ 2a has stipulated in than the present invention the relative vapour pressure of big ground adsorbed water steam little in, can not effectively utilize the energy of adsorption of sorbing material, operational efficiency is poor.Though φ 2a can be according to suitably settings such as environment temperatures, the adsorbance at φ 2a place reaches more than 0.20 usually, is preferably in more than 0.29, is more preferably the temperature conditions operation adsorption heat pump more than 0.30.In addition, this adsorbance can be tried to achieve according to 25 ℃ of adsorption isotherms of measuring down.
The adsorption tower 1 that is in step for regeneration by common 40～100 ℃, best 50～98 ℃, be more preferably 60～95 ℃ hot water heating, reach the equilibrium vapor pressure of corresponding aforementioned temperature scope, the saturated vapor under the condensation temperature of condenser 5 30 ℃～40 ℃ (it equals the temperature of the cooling water of cooler condenser) is depressed condensation.Steam moves to condenser 5 from adsorption tower 1, and condensation becomes water.Water conservancy backflow pipe arrangement 3 Returning evaporimeters 4.Though, preferably under the situation of φ 1a relative vapour pressure of rapid adsorbed water steam, move less than sorbing material according to the cooling water temperature of condenser and the decision of the relation between hot water temperature desorb side relative vapour pressure φ 1a (is to obtain with the equilibrium vapor pressure of the absorbate under the hot water temperature equilibrium vapor pressure divided by the absorbate under the temperature of the cooling water of condenser at this φ 1).Though φ 1a can suitably set according to environment temperature etc., the temperature conditions that the adsorbance at φ 1a place reaches below 0.06 usually, be preferably in below 0.05 moves adsorption heat pump.In addition, the difference that runs to the adsorbance of the adsorbance of the absorbate under the φ 1a and the absorbate under the φ 2a reach common 0.18g/g above, preferably 0.20g/g above, be more preferably more than the 0.25g/g.It more than is the 1st stroke.
In the 2nd stroke below, by switching control valve 31～34 and transfer valve 115,116,215 and 216 make adsorption tower 1 become absorption process, adsorption tower 2 becomes step for regeneration, can be equally obtains refrigeration from evaporimeter 4, i.e. refrigeration output.Move adsorption heat pump continuously by switching the 1st and the 2nd above stroke in turn.
In addition, though this explanation be operation method when 2 adsorption towers are set, if can keep the state of the adsorbable absorbate of any one adsorption tower by the absorbate of suitable desorb sorbing material absorption, then adsorption tower be provided with several can.
In addition, adsorption heat pump is used as drive source with the ability of sorbing material adsorption/desorption absorbate.On adsorption heat pump, as the absorbate that is absorbate, though can adopt water, ethanol and acetone etc., from looking down upon greatly of security, price, evaporation latent heat, water is the most desirable.
Adsorption heat pump of the present invention, because the sorbing material that the adsorbance that adopts relative vapour pressure with narrow range to change to obtain greatly changes, so, be applicable to the claimed apparatus miniaturization and limit the purposes of the loading of sorbing material, for example Vehicular air conditioner etc.
Embodiment
Below, utilize embodiment to specify the present invention, but the present invention is not subjected to any restriction of following examples.
In addition, in following embodiment, the water vapor adsorption isotherms under 25 ℃ is to obtain by the water vapor adsorption characteristic of measuring sorbing material under the following conditions.
The adsorption isotherm determinator: ベ Le ソ-Block 18[Japan's ベ Le (strain) is made]
Air high temperature groove temperature: 50 ℃
Adsorption temp: 25 ℃
Initial stage imports pressure: 3.0torr
Import the pressure set-point number: 0
Saturated vapour pressure: 23.76mmHg
Equilibration time: 500 seconds
Pre-treatment: 300 ℃, 5 hours vacuum attractions
Again, the mensuration of differential heat of adsorption is carried out under the following conditions.
Determinator: calorimeter and adsorbance determinator (manufacturing of Tokyo science and engineering)
Determination part temperature: 25 ℃
Steam imports uses the thermostat temperature: 30 ℃
The water vapor adsorption isotherms (25 ℃) of SAPO-34 (UOP LLC manufacturing) is shown in Fig. 2.Recognize that from Fig. 2 at 0.07～0.10 time rapid adsorbed water steam of relative vapour pressure, the adsorbance variable quantity of relative vapour pressure scope 0.05～0.20 is 0.25g/g.
In addition, SAPO-34 is a CHA type silicoaluminophosphate, and the skeletal density of CHA type is 14.6T/1,000
, pore diameter is 3.8
Again, with SAPO-34's (UOP LLC manufacturing)
29The Si-MAS-NMR record is shown in Fig. 3.Measure record according to spectrum, on this spectrum, relatively-70ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm ,-108ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm is 0.6% ,-70ppm～-the integrated intensity area of the signal strength signal intensity of 92ppm is 85.9%.Again, if the heat of adsorption of asking then is 58.6kJ/mol.
Embodiment 2
Open the method for putting down in writing on the flat 4-37007 communique with reference to special, utilize following method to make CHA type silicoaluminophosphate.
In 18g water, slowly add 85% phosphatase 11 5.4g and pseudobochmite (contain 25% water, コ Application デ ア makes) 9.2g, and stir.Add entry 10g again and stirred 1 hour, with it as A liquid.Separate with A liquid and separately to make the liquid that has mixed fumed silica (aerosil 200) 4.1g, morpholine 11.6g, water 15g, and slowly add A liquid therein.Add entry 24g more therein, stirred 3 hours.
The mixture that obtains is contained in the stainless steel pressure cooker of 200cc of built-in polytetrafluoroethylene (PTFE) inner core, under 200 ℃, leaves standstill and made its reaction in 24 hours.Cool off after the reaction, utilizing comes down in torrents removes clear liquid recovery sediment.Filter after the sediment water that obtains cleaned 3 times, dry down at 120 ℃.It was fired 6 hours with 550 ℃ under air draught, obtain zeolite.
Measure powder X-ray RD, this zeolite is CHA type (skeletal density=14.6T/1,000 really
) silicoaluminophosphate.In addition, skeletal density with reference to the Atlas Of Zeolites StructureTypes of IZA (1996, ELSEVIER) determine according to structure.Again, make experiment material heating for dissolving in aqueous hydrochloric acid solution, carried out icp analysis, the composition (mol ratio) of each composition of summation of the aluminium of skeleton construction and phosphorus and silicon is silicon 0.13, aluminium 0.49, phosphorus 0.38 relatively really.
Adsorption isotherm under 25 ℃ of this zeolite is shown in Fig. 4.Recognize from Fig. 4, this zeolite, at 0.07～0.10 time rapid adsorbed water steam of relative vapour pressure, the adsorbance variable quantity of relative vapour pressure scope 0.05～0.20 is 0.25g/g.
Again, with this zeolite
29The Si-MAS-NMR spectrum is measured record and is shown in Fig. 5.
29On the Si-NMR spectrum, relatively-70ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm ,-108ppm～-123pp is 9.2% ,-70ppm～-92pp is 52.6%.
In 128g water, add after the stirring of 72g aluminium isopropoxide, add 85% phosphoric acid 38.76g and stirred 1 hour.Add 35% tetramethylammonium hydroxide (TEAOH) aqueous solution 89.3g stirring 3 hours again after in this solution, adding fumed silica (aerosil 200) 1.2g.This mixture is contained in the stainless steel pressure cooker of 500cc of built-in polytetrafluoroethylene (PTFE) inner core, while 185 ℃ with 100rpm stir make its reaction 60 hours.Cool off after the reaction, adopt centrifugal separation to separate product, wash, and under 120 ℃, make its drying.It was fired 6 hours with 550 ℃ under air draught, obtain zeolite.
Measuring the result of powder X-ray RD, is CHA type silicoaluminophosphate (skeletal density=14.6T/1,000
).Again, make experiment material heating for dissolving in aqueous hydrochloric acid solution, carried out icp analysis, the composition (mol ratio) of each composition of summation of the aluminium of skeleton construction and phosphorus and silicon is silicon 0.03, aluminium 0.50, phosphorus 0.47 relatively really.
Adsorption isotherm under 25 ℃ of this zeolite is shown in Fig. 6.As shown in Figure 6, this zeolite also demonstrates the adsorption isotherm same with the zeolite of embodiment 2, and at 0.07～0.10 time rapid adsorbed water steam of relative vapour pressure, the adsorbance variable quantity of relative vapour pressure scope 0.05～0.20 is 0.23g/g.
Heat of adsorption is 58.2kJ/mol.
Embodiment 4
Utilize adsorption isotherm determinator [ベ Le ソ-Block 18: Japanese ベ Le (strain)] to measure SAPO-34 (UOP LLC manufacturing).The water vapor adsorption isotherms of the adsorption process under 40 ℃ of this SAPO-34 is shown in Fig. 7.In addition, being determined under the following condition of adsorption isotherm carried out: 50 ℃ of air high temperature groove temperature, 40 ℃ of adsorption temps, initial stage import pressure 3.0torr, import that pressure set-point is several 0, saturated vapour pressure 55.33mmHg, equilibration time 500 seconds.
On the other hand, the adsorption isotherm utilization of desorption process is gone up at magnetic suspension balance [Japanese ベ Le (strain)] and is connected the gravimetric method adsorbance determinator mensuration that gas generating unit, piezometry portion and gas discharge section are configured in the steam introduction part on the air thermostat.The mensuration of the adsorption isotherm of desorption process is to change at 120 ℃ of air high temperature groove temperature, 90 ℃ of down every 50Torr discharge water steam gravimetries of desorption temperature.Show the result in Fig. 7.
As the vehicle mounted aircondition, suppose it is the situation of general vehicle, can be thought of as T1=90 ℃, T2=40 ℃, T0=10 ℃ condition.At this moment, reach desorb side relative vapour pressure φ 1=0.11, absorption side relative vapour pressure φ 2=0.17, but the adsorbance difference of judges phi 1 and φ 2 is 0.21g/g.Surpassed adsorbance difference 0.15g/g, can think to have enough abilities as the air conditioner for vehicles that uses on the general car as target.
Again, in the time of T1=90 ℃, T2=40 ℃, T0=5 ℃, the adsorbance between φ 1=0.11 and the φ 2=0.17 reaches 0.20g/g, has surpassed the adsorbance difference 0.15g/g as target, can think to have enough abilities as aircondition.
And, according to the area, measurable situation about rising to from harsh external environment condition to coolant water temperature T2 about 45 ℃.At this moment, can consider under T1=90 ℃, to obtain T0=10 ℃ condition.The adsorption isotherm of the adsorption process under having measured 45 ℃ with ベ Le ソ-Block 18.Together be shown in Fig. 8 with the adsorption isotherm of 90 ℃ desorption process.The mensuration of the adsorption isotherm under 45 ℃ is carried out under the following conditions: 65 ℃ of air high temperature groove temperature, 45 ℃ of adsorption temps, initial stage import pressure 3.0torr, import that pressure set-point is several 0, saturated vapour pressure 55.33mmHg, equilibration time 500 seconds.In the time of T1=90 ℃, T2=40 ℃, T0=10 ℃, desorb is surveyed relative humidity φ 1=0.14 and is surpassed suction side relative humidity φ 2=0.13.
Like this, though understood relative vapour pressure in the relative vapor pressure ratio suction side of desorb side high in, if having temperature dependent embodiment 4, the adsorbance difference also can reach 0.16g/g.Even can think that the adsorption heat pump of the water vapor adsorption material that adopts embodiment 4 also can fully move in the high temperature place.
Reference example
In 173.4g water, slowly add 85% phosphatase 11 15.3g, slowly add pseudobochmite (contain 25% water, コ Application デ ア makes) 68g again and stirred 3 hours.Add fumed silica 30g therein, add morpholine 87.2g and water 242.3g and stirred 4.5 hours.At room temperature leave standstill and make its maturation an evening, put into the stainless steel pressure cooker of induction stirring-type 1L of built-in polytetrafluoroethylene (PTFE) inner core, under 60rpm, stir, under 200 ℃, make its reaction 24 hours.Cool off after the reaction, utilizing comes down in torrents removes clear liquid recovery sediment.The sediment that obtains is like this washed with water, filters, dry down at 120 ℃.It is fired with 550 ℃ under air draught obtain zeolite.Measuring the XRD of this zeolite, is the CHA type really.Again, make experiment material heating for dissolving in aqueous hydrochloric acid solution, carried out icp analysis, the composition (mol ratio) of each composition of summation of the aluminium of skeleton construction and phosphorus and silicon is silicon 0.12, aluminium 0.49, phosphorus 0.39 relatively really.
Adsorption isotherm under 25 ℃ of this zeolite is shown in Fig. 9.Recognize from Fig. 9, this zeolite, from the rapid adsorbed water steam of the extremely low absorption initial state of relative vapour pressure, the adsorbance variable quantity of relative vapour pressure scope 0.05～0.20 is only below 0.1g/g.Therefore be not suitable as the adsorption heat pump sorbing material.
With under the condition it being carried out the Figure 10 that the results are shown in that Si-MAS-NMR measures.
29On the Si-MAS-NMR spectrum, relatively-70ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm ,-108ppm～-the integrated intensity area of the signal strength signal intensity of 123ppm is 13.0%.And ,-70ppm～-the integrated intensity area of the signal strength signal intensity of 92ppm is 51.6%.Like this, even can think if-near the 110ppm peak strength greatly then CHA type silicoaluminophosphate, also be not suitable as the sorbing material of the thermal source regeneration that utilizes below 100 ℃.Heat of adsorption is 61.3kJ/mol.
Comparative example 1
(spy opens the figure line 4 of Figure 14 of flat 9-178292 number to the scope adsorbance difference of middle porous molecular screen (FSM-10) in relative vapour pressure 0.20 and 0.35 greater than 0.25g/g; With reference to FSM-10).But in the scope as the relative vapour pressure 0.05～0.30 of an example of the operation of adsorption heat pump of the present invention, adsorbance is little.In this scope, adsorbance change greatly be the scope of relative vapour pressure 0.15～0.30, but the adsorbance difference of this moment is 0.08g/g, as the poor performance of adsorption heat pump.
Comparative example 2
The water vapor adsorption isotherms that to utilize adsorption isotherm determinator [ベ Le ソ-Block 18: Japanese ベ Le (strain)] to measure under 25 ℃ of the adsorption temps of the silica dioxide gel A type of understanding as being applicable to the sorbing material of adsorption heat pump [Fuji's シ リ シ ア chemistry (strain)] is shown in Figure 11.In addition, this mensuration be with the SAPO-34 similarity condition of embodiment 1 under carry out.If according to the adsorption isotherm of the silica dioxide gel A type of Figure 11, then silica dioxide gel A type obtains and the roughly proportional adsorbance of relative vapour pressure in the scope of relative vapour pressure 0～0.7.But, be that molecular sieve is the same with middle porous molecular screen or porous matter aluminum phosphate, in the scope of relative vapour pressure 0.15～0.30, A type silica dioxide gel adsorbance only changes 0.08g/g.Though with the adsorption heat pump commercialization of silica dioxide gel, owing to the reason device that this adsorbance difference is little must not be little as the sorbing material use.
Comparative example 3
If according to being AFI type (skeletal density=17.5T/1,000 of molecular sieve as porous matter aluminum phosphate shown in Figure 12
) adsorption isotherm [the Colloid PolymSci277 of ALPO-5 of zeolite, p83-88 (1999), quote from Fig.1 (30 ℃ of adsorption temps)] adsorption isotherm, though then ALPO-5 sharply rises in the scope adsorbance of relative vapour pressure 0.25～0.40, scope at relative vapour pressure 0.05～0.3 is adsorbable/and desorb is 0.14g/g but change in the adsorbance of the scope of relative vapour pressure 0.15～0.30.
Though be at length and with reference to specific form of implementation the present invention to be described, only should understand with the dealer otherwise exceed aim of the present invention and scope, can increase various changes and modifications.
The application is based on Japan's special permission application (the special 2001-293990 of hope) of Japan's special permission application (the special 2001-191893 of hope), the application of 09 month 26 days calendar year 2001 of Japan's special permission application (special 2 001-111902 of hope), the application of 06 month 25 days calendar year 2001 of Japan's special permission application (the special 2001-045677 of hope), the application of 04 month 10 days calendar year 2001 of 02 month 21 days calendar year 2001 application, its content at this as with reference to including.
The possibility of utilizing on the industry
One of feature of the present invention has been to adopt the sorbing material with above-mentioned characteristic, this adsorption material Expect, can be used on the adsorption section of adsorption heat pump. Because under can changing at the relative vapour pressure of narrow range Obtain big adsorbance and change, so, be applicable to the adsorption heat pump of the loading of restriction sorbing material, For example on the air conditioner for vehicles.
Adsorption heat pump of the present invention is because the water adsorption amount of the adsorption/desorption of sorbing material is poor Greatly, can make at low temperatures regneration of adsorbent material (desorb), so, compare with tradition and can utilize low temperature Thermal source effectively drive adsorption heat pump. Again, the sorbing material that uses among the present invention is with traditional two Silica gel or zeolite facies are more than changing in same relative vapour pressure scope adsorbance, so, Using roughly, the sorbing material of same weight can produce more effect on moisture extraction.
That is, if adopt sorbing material of the present invention, can provide and utilize lower below 100 ℃ The adsorption heat pump that the thermal source of temperature drives.
Claims (8)
1. the using method of a sorbing material, comprise that heating the sorbing material with absorbate makes the absorbate desorb, the sorbing material of drying is cooled to be used for the temperature of the absorption of absorbate, and the absorption that is used for absorbate once more, it is characterized in that: (1) this sorbing material is included in the zeolite that contains aluminium and phosphorus in the skeleton construction, (2) this sorbing material is the water vapour sorbing material, relative vapour pressure φ 2b is more than 0.115 below 0.18 when the adsorption operations of adsorption/desorption portion, relative vapour pressure φ 1b is in the zone below 0.14 0.1 or more during the desorb of adsorption/desorption portion operation, has the adsorbance difference of utilizing the sorbing material that following formula obtains and reaches scope more than the 0.15g/g:
Adsorbance is poor=Q2-Q1,
Wherein,
The adsorbance at the φ 1b place that Q1=tries to achieve according to the steam desorption isotherm that the desorb operating temperature T3 of adsorption/desorption portion measures down,
The adsorbance at the φ 2b place that Q2=tries to achieve according to the water vapor adsorption isotherms that the adsorption operations temperature T of adsorption/desorption portion is measured for 4 times,
And
Relative vapour pressure φ 1b=[cools off the equilibrium water vapour pressure under the refrigerant temperature T2 of this condenser during the desorb of adsorption/desorption portion operation]/[heating the equilibrium water vapour pressure under the thermophore temperature T 1 of this adsorption/desorption portion],
This absorption of equilibrium vapor pressure/cooling under the cryogenic temperature T0 that relative vapour pressure φ 2b=[evaporation part generates during the adsorption operations of adsorption/desorption portion]/[equilibrium vapor pressure under the refrigerant temperature T2 of desorb portion],
Wherein, establish T0=5～10 ℃, T1=T3=90 ℃, T2=T4=40～45 ℃.
2. the using method of sorbing material as claimed in claim 1 is characterized in that: T0 is that 10 ℃, T2 are 40 ℃.
3. the using method of sorbing material as claimed in claim 1 is characterized in that: T0 is that 5 ℃, T2 are 40 ℃.
4. the using method of sorbing material as claimed in claim 1 is characterized in that: T0 is that 10 ℃, T2 are 45 ℃.
5. the using method of sorbing material as claimed in claim 1, it is characterized in that: be positioned at the scope below 0.18 more than 0.115 at φ 1b and φ 2b, and φ 1b is more than or equal to the zone of φ 2b, and sorbing material has the zone that this adsorbance difference reaches the above scope of 0.15g/g.
6. the using method of sorbing material as claimed in claim 1 is characterized in that: this zeolite, contain hetero atom in skeleton construction.
7. the using method of sorbing material as claimed in claim 6, it is characterized in that: the aluminium of this zeolite and phosphorus and the heteroatomic ratio that exists are:
0.001≤x≤0.3
Wherein, x is the aluminium of the relative skeleton construction of hetero atom and the mol ratio of phosphorus and heteroatomic summation,
0.3≤y≤0.6
Wherein, y is the aluminium of the relative skeleton construction of aluminium and the mol ratio of phosphorus and heteroatomic summation,
0.3≤z≤0.6
Wherein, z is the aluminium of the relative skeleton construction of phosphorus and the mol ratio of phosphorus and heteroatomic summation.
8. the using method of sorbing material as claimed in claim 1 is characterized in that: this zeolite, be skeletal density at 10.0T/1,000
3More than, 16.0T/1,000
3Following zeolite.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
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| JP45677/2001 | 2001-02-21 | ||
| JP2001045677 | 2001-02-21 | ||
| JP111902/2001 | 2001-04-10 | ||
| JP191893/2001 | 2001-06-25 | ||
| JP293990/2001 | 2001-09-26 | ||
| JP382029/2001 | 2001-12-14 |
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| EP2772299A4 (en) | 2011-10-26 | 2015-08-26 | Mitsubishi Plastics Inc | Steam-adsorbing material for adsorption heat pump, method for manufacturing same, and adsorption heat pump using same |
| CN104019504B (en) * | 2013-02-28 | 2017-03-29 | 李元哲 | Air source heat pump solid absorption dehumidifier |
| JP6436557B2 (en) | 2013-12-18 | 2018-12-12 | 株式会社デンソー | Adsorption type refrigerator |
| CN103900869B (en) * | 2014-03-03 | 2016-04-13 | 复旦大学 | low temperature molecular sieve adsorption pump device |
| DE102016106234B4 (en) * | 2016-04-06 | 2022-03-03 | Fahrenheit Gmbh | Adsorption heat pump and method for operating an adsorption heat pump |
| CN113175766B (en) * | 2021-04-30 | 2022-04-08 | 华中科技大学 | Double-helix finned tube type adsorption bed for adsorption refrigeration system and application |
| CN115264662B (en) * | 2022-06-21 | 2023-06-06 | 同济大学 | Dehumidification air conditioning system based on temperature-sensitive gel and indirect evaporative cooling and application method |
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|---|---|---|---|---|
| US4637218A (en) * | 1974-11-04 | 1987-01-20 | Tchernev Dimiter I | Heat pump energized by low-grade heat source |
| US5309985A (en) * | 1992-11-17 | 1994-05-10 | Erickson Donald C | Stationary continuous multimodular trisorption heat pump |
| JPH0676203B2 (en) * | 1988-11-30 | 1994-09-28 | ユニオン、カーバイト、コーポレーション | Microporous crystal composite composition and method for producing the same |
| CN1151906A (en) * | 1995-12-13 | 1997-06-18 | 中国科学院大连化学物理研究所 | Zeolite refrigerating absorbent capable of replacing freon |
| JPH11137947A (en) * | 1997-09-02 | 1999-05-25 | Ebara Corp | Dehumidifying air conditioner |
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| CN100464133C (en) * | 2001-02-21 | 2009-02-25 | 三菱化学株式会社 | Adsorption heat pump and use of adsorbent as adsorbent for adsoprtion heat pump |
| WO2002066910A1 (en) * | 2001-02-21 | 2002-08-29 | Mitsubishi Chemical Corporation | Adsorption heat pump, and use of adsorption material as adsorption material for adsorption heat pump |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637218A (en) * | 1974-11-04 | 1987-01-20 | Tchernev Dimiter I | Heat pump energized by low-grade heat source |
| JPH0676203B2 (en) * | 1988-11-30 | 1994-09-28 | ユニオン、カーバイト、コーポレーション | Microporous crystal composite composition and method for producing the same |
| US5309985A (en) * | 1992-11-17 | 1994-05-10 | Erickson Donald C | Stationary continuous multimodular trisorption heat pump |
| CN1151906A (en) * | 1995-12-13 | 1997-06-18 | 中国科学院大连化学物理研究所 | Zeolite refrigerating absorbent capable of replacing freon |
| JPH11137947A (en) * | 1997-09-02 | 1999-05-25 | Ebara Corp | Dehumidifying air conditioner |
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| CN1904512A (en) | 2007-01-31 |
| CN100416182C (en) | 2008-09-03 |
| CN1880882A (en) | 2006-12-20 |
| CN1869552A (en) | 2006-11-29 |
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