CN1235006C - Continuous type adsorption refrigeration system - Google Patents
Continuous type adsorption refrigeration system Download PDFInfo
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- CN1235006C CN1235006C CNB2004100163378A CN200410016337A CN1235006C CN 1235006 C CN1235006 C CN 1235006C CN B2004100163378 A CNB2004100163378 A CN B2004100163378A CN 200410016337 A CN200410016337 A CN 200410016337A CN 1235006 C CN1235006 C CN 1235006C
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- pipeline
- regenerator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
- F25B35/02—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a liquid as sorbent, e.g. brine
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The present invention discloses a continuous type adsorption refrigeration system. The present invention is provided with an evaporator, a condenser, a regenerator, an adsorber, a companion bed and a lifting pipe, wherein the evaporator, the condenser, the regenerator, the adsorber, the companion bed and the lifting pipe are orderly connected; the evaporator is connected with the adsorber; the adsorber, the regenerator, the lifting pipe and the companion bed are fluidized beds. The present invention adopts the fluidized beds instead of fixed beds; in this way, the mass transferring requirement between the adsorbing agents and refrigerants can be quickly completed; besides, the particles of the adsorbing agent are blown for flowing in the fluidized beds by refrigerant gas; the heat transmission between the adsorbing agents and exterior fluid can be quickly completed; the heat transferring time and the mass transferring time are greatly shortened. An adsorption process and a desorption process are completed in two fluidized beds in the present invention; the utilization rate of device is improved; a lifting device is arranged in the system for making into a continuous type adsorption refrigeration system. Therefore, the running efficiency of the system is greatly improved; because of the work characteristics of the fluidized beds, the system can be used for large-scale industrial application; the present invention provides a new path for the commercialization of an adsorption refrigeration system.
Description
Technical field
The present invention relates to a kind of continuous type adsorption refrigeration system.Fluidized bed applications in adsorption refrigeration system, is circulated intrasystem by refrigerant gas and absorbent particles, finish heat transfer, mass transport process rapidly, shortened cycle period, improved the cycle efficieny of absorption type refrigerating greatly.
Background technology
Solid adsorption refrigeration can adopt waste heat to drive, and not only can play mitigation to the anxiety supply of electric power, and can effectively utilize a large amount of low grade heat energies.In addition, absorption type refrigerating does not adopt the chloro-fluoro-carbon kind cold-producing medium, and no CFCs problem does not have greenhouse effects yet, is a kind of eco-friendly refrigeration modes.Since 20th century the mid-1970s, absorption type refrigerating comes into one's own, and research deepens constantly.Adsorbent bed is its critical component in adsorption refrigeration system.Because adsorbent bed is in the process of continuous intensification and cooling always, under same low-temperature receiver and heat source temperature, same mass transfer condition, the lifting of adsorbent bed, the speed of temperature are fast more, the power of absorption refrigeration is just high more, therefore, requirement for adsorbent bed is very strict, and at first, the heat transfer property of adsorbent bed will be got well.That is, when absorption, adsorbent bed will spread out of heat of adsorption rapidly, reduces the influence to adsorbance; During desorption, adsorbent bed will be passed to adsorbent with heat with the speed of maximum.Secondly, the mass-transfer performance of adsorbent bed will be got well, that is, require the diffusion admittance of adsorbent bed unblocked.Only in this way could shorten cycle period, the performance of raising system, at present, adsorbent bed is fixed bed in the domestic and international employed adsorption refrigeration system, and mode of operation is a batch-type, that is: adsorbent bed is when work, and adsorbent is fixed, by the mobile mass transport process of finishing of cold-producing medium, diabatic process is then finished by heat conducting mode by the third medium.Adsorbent bed mostly is a heat exchanger, and adsorbent bed has the effect of absorber and regenerator concurrently in the process of work, adsorbent is filled between the heat exchanger interior shell side and tube side, what tube side fed is cooling fluid (adsorption process) or high temperature fluid (desorption process), in filling the shell side of adsorbent the inflow or the outflow of refrigerant gas are then arranged.The transmission of heat is mainly finished by heat conducting mode in adsorbent bed, and during desorption, heat is at first reached the outer surface of heat exchanger tube by fluid boundary layer, tube wall, and then slowly transmits to the periphery through adsorbent.During absorption, the process that heat is transmitted is just opposite.For adsorbent bed, its thermal resistance is except coming from the heat exchanger tube, fluid is with beyond the thermal resistance between the tube wall, main is to come from adsorbent, because adsorbent is the non-conductor of heat normally, and by a some contact, this has increased the difficulty that heat transmits more between the absorbent particles.Cause heat transfer, the mass-transfer efficiency of fluid in adsorbent bed very low, this is the one of the main reasons that adsorption refrigeration system can't be compared with other refrigeration system on runnability.In order to improve the heat-transfer character of adsorbent bed, scholar both domestic and external has carried out many improvement to the structure of adsorbent bed, its main method is: increases the thermal conductivity factor of adsorbent and increases effective heat transfer area, thereby increase unit are, the heat output of unit interval, but effect and not obvious.Adsorbent bed is that the obstruction adsorption refrigeration system so far can not business-like main cause in the poor efficiency aspect heat transfer, the mass transfer.
Summary of the invention
The purpose of this invention is to provide a kind of continuous type adsorption refrigeration system.
It has evaporimeter, condenser, regenerator, absorber, companion's bed, the riser that connects successively, and evaporimeter is connected with absorber, and absorber, regenerator, riser, companion's bed are fluid bed.
Evaporimeter links to each other with first gas circulator through first pipeline, and the gas vent of absorber links to each other with the first gas circulation pump intake through second cyclone separator by the 3rd pipeline; Be provided with condenser coil in the absorber, the absorbent particles outlet of absorber is by second pipeline, link to each other with the absorbent particles inlet of regenerator through second guiding valve, be provided with heat(ing) coil in the regenerator, the gas vent of regenerator links to each other with the 6th pipeline through the 3rd cyclone separator, link to each other with the 8th pipeline with the 7th pipeline respectively at the 6th pipe end, the 7th pipe end links to each other with the tenth pipeline, the 11 pipeline respectively; The two or two gas circulator links to each other with the gas access of regenerator through the tenth pipeline, and the 11 pipeline links to each other with the 3rd gas circulator through control valve; The particle outlet of regenerator links to each other with the absorbent particles inlet of riser through the 9th pipeline, the 3rd guiding valve, the gas access of riser links to each other with the 3rd gas circulator, the absorbent particles outlet of riser links to each other with companion's bed, the gas vent of companion's bed links to each other with the 3rd gas circulator by the 5th pipeline through first cyclone separator of its top, the absorbent particles outlet of companion's bed links to each other with absorber by the 4th pipeline through first guiding valve, and the 8th pipeline links to each other with evaporimeter through condenser, choke valve.
The present invention is applied in fluidization in the adsorption refrigeration system.It is at maintaining static owing to adsorbent in the fixed bed, make absorber conduct heat, the low-down shortcoming of mass-transfer efficiency, adopt fluid bed to replace fixed bed, not only can finish the mass transfer requirement between adsorbent and the cold-producing medium so fast, and, blowing absorbent particles by refrigerant gas flows in fluid bed, heat of adsorption can be passed rapidly, needed heat transmits into fast during with desorption, thereby has shortened heat transfer greatly, the mass transfer time, in the present invention, adsorption process and desorption process are finished in two fluid beds, improve usage ratio of equipment, and in system, loaded onto lifting device, made the continuous type adsorption refrigeration system.Thereby, make the operational efficiency of system improve greatly, because fluid bed self work, native system can be used for large-scale commercial Application, this just finally moves towards commercialization for adsorption refrigeration system new approach is provided.
Description of drawings
Fig. 1 is a kind of continuous type adsorption refrigeration system flow chart;
Fig. 2 is an absorber work schematic diagram of the present invention;
Fig. 3 is a regenerator work schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, evaporimeter 1 of the present invention links to each other with first gas circulator 7 through first pipeline 13, and the gas vent of absorber 3 links to each other with first gas circulator, 7 inlets through second cyclone separator 6 by the 3rd pipeline 15; Be provided with condenser coil 24 in the absorber 3, the absorbent particles outlet of absorber 3 is by second pipeline 14, link to each other with the absorbent particles inlet of regenerator 2 through second guiding valve 27, be provided with heat(ing) coil 25 in the regenerator 2, the gas vent of regenerator 2 links to each other with the 6th pipeline 18 through the 3rd cyclone separator 8, link to each other with the 8th pipeline 20 with the 7th pipeline 19 respectively at the 6th pipeline 18 ends, the 7th pipeline 19 ends link to each other with the tenth pipeline the 22, the 11 pipeline 23 respectively; Second gas circulator 9 links to each other with the gas access of regenerator 2 through the tenth pipeline 22, and the 11 pipeline 23 links to each other with the 3rd gas circulator 10 through control valve 29; The particle outlet of regenerator 2 links to each other with the absorbent particles inlet of riser 11 through the 9th pipeline 21, the 3rd guiding valve 28, the gas access of riser 11 links to each other with the 3rd gas circulator 10, the absorbent particles outlet of riser 11 links to each other with companion's bed 4, the gas vent of companion's bed 4 links to each other with the 3rd gas circulator 10 by the 5th pipeline 17 through first cyclone separator 5 of its top, the absorbent particles outlet of companion's bed 4 links to each other with absorber 3 by the 4th pipeline 16 through first guiding valve 26, and the 8th pipeline 20 links to each other with evaporimeter 1 through condenser 12, choke valve 30.
The outer surface of said riser 11, companion's bed the 4, the 4th pipeline 16, the 5th pipeline 17 is with insulation material.The relative position of each assembly of this refrigeration system is: absorber 3 is positioned at the top of regenerator 2, the 9th pipeline 21 link to each other with regenerator (2) position the 9th pipeline 21 link to each other with riser 11 position above, the outlet of the absorbent particles of the 9th pipeline 21 is positioned at the top of the 3rd gas circulator 10.
Absorption and desorption process are finished in absorber 3 and regenerator 2 respectively among the present invention.Refrigerant gas in the evaporimeter 1 is sent in the absorber 3 by first gas circulator 7, blow absorbent particles and in absorber, make turbulent flow, adsorbent is the absorption refrigeration agent in process of flowing, and by with condenser coil 24 in cold fluid carry out heat convection, take away the heat that produces in the adsorption process.The refrigerant gas that is not adsorbed enters first gas circulator 7, repetitive cycling through second cyclone separator 6 once more by the 3rd pipeline 15; Adsorbent after having adsorbed enters regenerator 2 by second pipeline 14 under the control of second guiding valve 27, and under the blowing of the refrigerant gas of being sent into by second gas circulator 9, carries out heat convection with hot fluid in the heat(ing) coil 25.The refrigerant gas that desorption comes out in the adsorbent enters the 6th pipeline 18 through the 3rd cyclone separator 8, and the most of refrigerant gas that enters the 6th pipeline 18 enters condenser 12 through the 8th pipeline 20, be condensed into liquid after, flow back to evaporimeter 1 through throttling arrangement 30; Small part enters the tenth pipeline 22 and the 11 pipeline 23 at the 7th pipeline 19 ends, then enters second gas circulator 9 and the 3rd gas circulator 10 respectively.The gas that enters second gas circulator 9 is used to blow absorbent particles; The gas that enters the 3rd gas circulator 10 through control valve 29 is used for replenishing course of conveying, because of being adsorbed the gas flow that agent absorption reduces.
Adsorbent after desorption is intact is entered the bottom of riser 11 by the 9th pipeline 21 through the 3rd guiding valve 28.Absorbent particles in the riser 11 is blown in companion's bed 4 by the 3rd gas circulator 10, and first cyclone separator 5 of gas through its top in companion's bed 4 enters the 3rd gas circulator 10.The quality of the refrigerant gas of circulation is basicly stable in the 3rd gas circulator 10, riser 11, companion's bed the 4 and the 5th pipeline 17, in course of conveying, temperature reduction because of absorbent particles in the riser, a spot of refrigerant gas that can cause is adsorbed agent absorption, and the gas flow of minimizing enters the 3rd gas circulator 10 by the 11 pipeline 23 through control valve 29 and replenishes.The high-temperature adsorbing agent particle that enters companion's bed 4 enters absorber 3 by the 4th pipeline 16 through first guiding valve 26, and the absorbent particles that enters absorber 3 at first will be finished temperature-fall period, adsorbs the refrigerant gas of being sent into by gas circulator 7 then.
Absorbent particles above first guiding valve 26 need have certain piling height, preventing the accompanying gases in the bed 4 to enter absorber 3, and cause that the pressure in the absorber 3 raise.Because adsorbent is the fine-powdered particle, can reach the requirement of confining gas.
Absorbent particles above second guiding valve 27 need have certain piling height, enters absorber 3 to prevent the gas in the regenerator 2, and causes that the pressure in the absorber 3 raises.
Absorbent particles above the 3rd guiding valve 28 need have certain piling height, enters riser 11 to prevent the gas in the regenerator 2, and causes that the pressure in the riser 11 raises.
As shown in Figure 2, absorbent particles is entered in the absorber by the particle inlet of absorber, and what flow in the coiled pipe is cold fluid, and the cold fluid inlet is positioned at the absorbent particles arrival end, and the cold fluid outlet is positioned at the absorbent particles port of export.Refrigerant gas is blown into the lower curtate of absorber by the gas access, and see through distribution grid and blow absorbent particles and in absorber, make turbulent flow, in the process that absorbent particles is blowed, finish adsorbent with the mass transport process between the cold-producing medium, and finish adsorbent with the diabatic process between the cold fluid in the coiled pipe.In absorber, make the absorbent particles of turbulent flow, last, be blown in the chamber in absorber left side, and flow out absorber by the absorbent particles outlet, the gas that is not adsorbed in the adsorbed gas flows out absorber by gas vent.
As shown in Figure 3, absorbent particles is entered in the regenerator by the particle inlet of regenerator, and what flow in the coiled pipe is hot fluid, and the hot fluid inlet is positioned at the absorbent particles port of export, and the hot fluid outlet is positioned at the absorbent particles arrival end.Refrigerant gas is blown into the lower curtate of regenerator by the gas access, and sees through distribution grid and blow absorbent particles make turbulent flow in absorber, in the process that absorbent particles is blowed, finishes adsorbent with the diabatic process between the hot fluid in the coiled pipe.In regenerator, make the absorbent particles of turbulent flow, at last, be blown in the chamber on regenerator right side, and flow out absorber by absorbent particles outlet, the desorption gas that comes out flows out regenerator together with what enter refrigerant gas in the regenerator by gas vent from the adsorbent.
Claims (4)
1. continuous type adsorption refrigeration system, it is characterized in that it has evaporimeter (1), condenser (12), regenerator (2), absorber (3), companion's bed (4), the riser (11) that connects successively, absorber (3), regenerator (2), riser (11), companion's bed (4) are fluid bed.
2. a kind of continuous type adsorption refrigeration system according to claim 1, it is characterized in that said evaporimeter (1) links to each other with first gas circulator (7) through first pipeline (13), the gas vent of absorber (3) links to each other with first gas circulator (7) inlet through second cyclone separator (6) by the 3rd pipeline (15); Be provided with condenser coil (24) in the absorber (3), the absorbent particles outlet of absorber (3) is by second pipeline (14), link to each other with the absorbent particles inlet of regenerator (2) through second guiding valve (27), be provided with heat(ing) coil (25) in the regenerator (2), the gas vent of regenerator (2) links to each other with the 6th pipeline (18) through the 3rd cyclone separator (8), link to each other with the 8th pipeline (20) with the 7th pipeline (19) respectively at the 6th pipeline (18) end, the 7th pipeline (19) end respectively with the tenth pipeline (22), the 11 pipeline (23) links to each other, second gas circulator (9) links to each other through the gas access of the tenth pipeline (22) with regenerator (2), and the 11 pipeline (23) links to each other with the 3rd gas circulator (10) through control valve (29); The particle outlet of regenerator (2) is through the 9th pipeline (21), the 3rd guiding valve (28) links to each other with the absorbent particles inlet of riser (11), the gas access of riser (11) links to each other with the 3rd gas circulator (10), the absorbent particles outlet of riser (11) links to each other with companion's bed (4), the gas vent of companion's bed (4) links to each other with the 3rd gas circulator (10) by the 5th pipeline (17) through first cyclone separator (5) of its top, the absorbent particles outlet of companion's bed (4) links to each other with absorber (3) by the 4th pipeline (16) through first guiding valve (26), and the 8th pipeline (20) is through condenser (12), choke valve (30) links to each other with evaporimeter (1).
3. a kind of continuous type adsorption refrigeration system according to claim 2, the outer surface that it is characterized in that said riser (11), companion's bed (4), the 4th pipeline (16), the 5th pipeline (17) is with insulation material.
4. a kind of continuous type adsorption refrigeration system according to claim 2, it is characterized in that, the relative position of each assembly of this refrigeration system is: absorber (3) is positioned at the top of regenerator (2), the 9th pipeline (21) links to each other the position in link to each other with riser (11) top of position of the 9th pipeline (21) with regenerator (2), the absorbent particles outlet of the 9th pipeline (21) is positioned at the top of the 3rd gas circulator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100163378A CN1235006C (en) | 2004-02-13 | 2004-02-13 | Continuous type adsorption refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100163378A CN1235006C (en) | 2004-02-13 | 2004-02-13 | Continuous type adsorption refrigeration system |
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| Publication Number | Publication Date |
|---|---|
| CN1558166A CN1558166A (en) | 2004-12-29 |
| CN1235006C true CN1235006C (en) | 2006-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100163378A Expired - Fee Related CN1235006C (en) | 2004-02-13 | 2004-02-13 | Continuous type adsorption refrigeration system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611123B (en) * | 2020-12-16 | 2022-08-09 | 北京工业大学 | Adsorption refrigeration system and method capable of transporting adsorption material |
| CN115468330B (en) * | 2022-09-22 | 2023-05-23 | 哈尔滨商业大学 | Magnetic absorption conversion type adsorption refrigeration/heat pump air conditioning system |
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- 2004-02-13 CN CNB2004100163378A patent/CN1235006C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1558166A (en) | 2004-12-29 |
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Granted publication date: 20060104 Termination date: 20130213 |