CN101839583B - Concentration self-adapting type diffusion-absorption refrigerating machine - Google Patents
Concentration self-adapting type diffusion-absorption refrigerating machine Download PDFInfo
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- CN101839583B CN101839583B CN2010101517727A CN201010151772A CN101839583B CN 101839583 B CN101839583 B CN 101839583B CN 2010101517727 A CN2010101517727 A CN 2010101517727A CN 201010151772 A CN201010151772 A CN 201010151772A CN 101839583 B CN101839583 B CN 101839583B
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- heat exchanger
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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]
- Y02B30/62—Absorption based systems
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Abstract
The invention discloses a concentration self-adapting type diffusion-absorption refrigerating machine, aims at providing a diffusion-absorption refrigerating machine which can carry out concentration self-adapting regulation along with the change of operation conditions. The concentration self-adapting type diffusion-absorption refrigerating machine comprises a solution heat exchanger, a thermo-siphon pump, a generator, a fine stiller, a condenser, an evaporator, a gas heat exchanger, an absorber, a liquid accumulator and a concentration regulator which are sequentially connected by a pipeline; the concentration regulator is full of dilute ammonia water and liquid ammonia which are separated by a piston; and when environmental temperature changes, the position of the piston changes so as to change the ratio of the dilute ammonia water to the liquid ammonia, thus achieving the purpose of regulating the concentration of the system, enabling the concentration of refrigerants to make self regulation according to the change of the environmental temperature, improving the efficiency and reducing energy consumption. The invention can be applied to diffusion-absorption refrigerating occasions with larger environmental temperature fluctuation.
Description
Technical field
The invention belongs to refrigeration plant manufacturing technology field, be specifically related to a kind of concentration self-adapting type diffusion and loose-Absorption Refrigerator.
Background technology
The spread-absorbing type kind of refrigeration cycle is by the Platen of Stockholm, SWE KTH study and Munters proposition, afterwards the Electrolux of Electrolux of Sweden and U.S. Servel realized should technology the marketization, be main mainly with small refrigerator.The exploitation to Related product is presided over by Ministry of Light Industry by China 1987, and has formulated relevant criterion (SG2 (8) 3-(8) 2b), and has set up several producers it is produced.The main feature of this kind of refrigeration cycle is: no any moving component in the system, can the multipotency source drive, noiselessness etc. when cold-producing medium does not have broken ring, operation to environment, but usefulness becomes the main cause of its development of restriction far below the compression refrigeration of routine.Improving the efficient of spread-absorbing type refrigeration machine, is the key of its popularization.
In the diffusion-absorption refrigerating machine, solution concentration is an important parameter that influences refrigeration machine efficient and performance.It is influenced concentration by condensation temperature, occurrence temperature, absorption temperature and evaporating temperature mainly.Wherein occurrence temperature depends primarily on heat source temperature, evaporating temperature and depends on the temperature requirements in the refrigeration space, and for the spread-absorbing type refrigeration machine, its thermal source is general constant and the cryogenic temperature demand fluctuation is also not too big, so can think both substantially constants.And condensation temperature and absorption temperature depend primarily on sink temperature, generally are applied to little refrigeration occasion at present for the spread-absorbing type refrigeration machine, and its type of cooling generally belongs to the cooling of free convection formula, and its low-temperature receiver mainly is a surrounding air; Compare with water-cooled large-scale ammonia absorption type refrigeration or lithium bromide absorbing type refrigeration, its temperature fluctuation is bigger.The sink temperature fluctuation can directly cause the variation of its condensation temperature and absorption temperature, and then influences the variation of its optimum concentration.At present, the spread-absorbing type refrigeration machine on the market all belongs to the constant density operation, and this also is a reason that causes its efficient lower.In addition, compare it with large-scale absorption system and be applied to small-type refrigeration appliance, it is unsuitable too high that this has also determined it to control cost; The mode that electrical installation is regulated is inappropriate.In the market, do not see as yet and can regulate spread-absorbing type refrigeration machine concentration, that cost is lower automatically according to operating condition.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of concentration self-adapting type diffusion to loose-Absorption Refrigerator.
Concentration self-adapting type diffusion provided by the present invention looses-and Absorption Refrigerator comprises reservoir 9, solution heat exchanger 1, siphon pumps 2, generator 3, rectifier 4, condenser 5, evaporimeter 6, gas heat exchanger 7 and the absorber 8 that pipeline connects successively; Between generator 3 and reservoir 9, be provided with return line, constitute the peripheral passage between generator 3, reservoir 9, solution heat exchanger 1 and the absorber 8 four through solution heat exchanger 1, absorber 8; Between evaporimeter 6, gas heat exchanger 7 and absorber 8 threes, be provided with return line, constitute the peripheral passage between evaporimeter 6, gas heat exchanger 7 and the absorber 8; Said condenser 5 is provided with consistencyregulator 10 to the pipeline and the solution heat exchanger 1 of gas heat exchanger 7 between the pipeline of absorber 8; The pipeline connection of gas heat exchanger 7 is arrived through pipeline and condenser 5 in the upper end of said consistencyregulator 10, and the lower end of consistencyregulator 10 is connected with the pipeline of said solution heat exchanger 1 to absorber 8.
Said consistencyregulator 10 constitutes 14 by urceolus 11, deformation element 12, transmission mechanism 13, piston; Piston 14 is placed among the urceolus 11, can slide up and down; Said transmission mechanism 13 is for amplifying lever, and an end of transmission mechanism 13 connects piston 14, and the other end of transmission mechanism 13 connects deformation element 12, and said transmission mechanism 13 is fixed on the sidewall of urceolus 11; The upper end of said deformation element 12 links with urceolus 11 through screw thread, and the lower end of deformation element 12 links to each other with transmission mechanism 13 through hinge.Said deformation element is a bellows, and the upper end is fixed on urceolus top through screw thread.
For spread-absorbing type refrigeration, particular environment temperature corresponding the solution circulation composition of an optimum, when in general temperature was higher, optimum solution concentration was lower; Solution concentration optimum when temperature is low is higher; And spread-absorbing type freezes and leans on siphon pumps 2 to keep the solution circulation, and 2 pairs of submergences of siphon pumps have higher requirements, and the increase of solution circulation total amount or minimizing all can directly influence the submergence of siphon pumps 2, and then influence its lifting performance.So during to system's concentration adjustment, the whole circular amount of solution is immutable.
Concentration self-adapting type diffusion of the present invention looses-and the Absorption Refrigerator operation principle is following: and consistencyregulator 10 upper ends are connecting the pipeline of condenser 5 to gas heat exchanger 7; And be the liquefied ammonia from condenser 5 condensations in this section pipeline, then consistencyregulator 10 tops are full of liquefied ammonia; Consistencyregulator 10 lower ends are connected in the pipeline of solution heat exchanger 1 to absorber 8, and this section pipeline is the weak aqua ammonia that refluxes from generator 3, so consistencyregulator 10 bottoms are weak aqua ammonia.
When environment temperature raise, the reduction of spread-absorbing type refrigerator system solution concentration can be beneficial to the operation of system.Concentration self-adapting type diffusion of the present invention looses-and Absorption Refrigerator then is when utilizing environment temperature to raise; The corresponding rising of condensation temperature meeting; The gross pressure of system's operation can increase thereupon; Compressibility deformation can take place because of the pressure that receives can increase in the deformation element 12 in the consistencyregulator 10 at this moment, and piston 14 is given in this deformation transmission after transmission mechanism 13 amplifications, break-in, drags piston 14 and moves down.When piston 14 moved down, consistencyregulator 10 lower space can reduce, and the weak aqua ammonia of bottom escapes and enter in the systemic circulation; And consistencyregulator 10 upper spaces can increase simultaneously, have isopyknic liquefied ammonia from system, to spin off and get into consistencyregulator 10 upper spaces.Because consistencyregulator 10 is not participated in kind of refrigeration cycle, for the circulatory system, the weak aqua ammonia internal circulating load owing to the liquefied ammonia internal circulating load as cold-producing medium reduces as absorbent increases, and has realized turning down the purpose of concentration.
Solution concentration was beneficial to its efficient raising when otherwise the spread-absorbing type refrigerator system suitably improved when environment temperature reduces, and the action that 10 execution of consistencyregulator are opposite with said process comes the height-adjusting system solution concentration.Thereby the assurance system can make it according to the variation automatic regulator solution concentration of environmental working condition than carrying out under the suitable concentration.
It is weak aqua ammonia that ammoniacal liquor, bottom are arranged in the consistencyregulator upper space of the present invention; One side's recruitment reduction volume total and the opposing party is suitable during adjusting; Thereby the working medium volume that has guaranteed the turnover system equates that the solution internal circulating load of overall system can not change.
Beneficial effect of the present invention:
1 has realized the self-control of system's solution concentration under the prerequisite that does not change system's solution total amount, improved operational efficiency.
The adjuster of 2 employings does not have electrical equipment, need not external energy supply, so its cost is low, stability strong, structure is simple relatively.
3 refrigeration machines have guaranteed the main body of conventional diffusion-Absorption Refrigerator, just its part parts are improved, and can carry out part to existing refrigeration machine and improve the arrival purpose, but generalization is strong.
The cold-producing medium that 4 refrigeration systems adopt is a natural refrigerant, and ozone layer is had no adverse effects, do not have greenhouse effects, is beneficial to the protection of environment.
Description of drawings
Fig. 1 is that concentration self-adapting type diffusion of the present invention looses-the Absorption Refrigerator structural representation.
Fig. 2 is that concentration self-adapting type diffusion of the present invention looses-Absorption Refrigerator consistencyregulator structural representation.
Fig. 3 is that concentration self-adapting type diffusion of the present invention looses-parts operation sketch map when the Absorption Refrigerator consistencyregulator reduces in environment temperature.
Fig. 4 is that concentration self-adapting type diffusion of the present invention looses-parts operation sketch map when the Absorption Refrigerator consistencyregulator raises in environment temperature.
Wherein: 1: solution heat exchanger, 2: siphon pumps, 3: generator, 4: rectifier, 5: condenser; 6: evaporimeter, 7: gas heat exchanger, 8: absorber, 9: reservoir, 10: consistencyregulator; 11: urceolus, 12: deformation element, 13: transmission mechanism, 14: piston.
The specific embodiment
As shown in Figure 1, concentration self-adapting type diffusion of the present invention looses-and reservoir 9, solution heat exchanger 1, siphon pumps 2, generator 3, rectifier 4, condenser 5, evaporimeter 6, gas heat exchanger 7, absorber 8 that Absorption Refrigerator is connected by pipeline successively form; Between generator 3 and reservoir 9, be provided with return line, and then constitute the peripheral passage between the generator 3, reservoir 9, solution heat exchanger 1, absorber 8 through solution heat exchanger 1, absorber 8; Be provided with return line between evaporimeter 6, gas heat exchanger 7, the absorber 8 and connect, thereby constitute the peripheral passage; Condenser 5 is provided with consistencyregulator 10 to the pipeline and the solution heat exchanger 1 of gas heat exchanger 7 between the return line of absorber 8; The pipeline connection of gas heat exchanger 7 is arrived through pipeline and condenser 5 in the upper end of said consistencyregulator 10, and the lower end is connected with the pipeline of solution heat exchanger 1 to absorber 8; Said consistencyregulator 10 is made up of urceolus 11, deformation element 12, transmission mechanism 13, piston 14; Said piston 14 is placed among the urceolus 11, can slide up and down; Said transmission mechanism 13 is for amplifying lever, and the one of which end connects piston 14, and the other end connects deformation element 12, and said transmission mechanism 13 is fixed on the sidewall of urceolus 11; Deformation element 12 upper ends can link with urceolus 11 through screw thread, and the lower end can link to each other with transmission mechanism 13 through hinge, and said deformation element 12 is a bellows.
During initial fill, concentration self-adapting type diffusion of the present invention looses-and the concentration of Absorption Refrigerator can confirm according to the main finger ring of average running environment duty parameter in every year border temperature, and confirm operating pressure this moment; Confirm can basis in the position of urceolus 11 volumes of consistencyregulator 10 and piston 14 when initial: on the piston 14 during limit by row, and optium concentration under the corresponding year minimum ambient temperature conditions, during 14 times limit by row of piston, optium concentration under the corresponding year high ambient temperature operating mode.
When variation of ambient temperature; Its operating pressure has corresponding variation, and the pressure that acts on its lower end simultaneously can change, and deformation element 12 can produce the deformation of compression or extensibility; Its deformation is amplified, is passed to piston 14 and then drive the piston motion after the break-in through transmission mechanism 13; Transmission mechanism 13 can be one and amplifies lever, and fulcrum is fixed on the sidewall of urceolus 11, and deformation element 12 and piston 14 can be connected through the hinge; Its lever amplification coefficient should confirm that the specific system of answering of the running orbit of piston 14 is that the optimal concentration variation characteristic is confirmed with working conditions change according to the deformation behavior of deformation element 12 and the running orbit characteristic of piston 14.Pressure like the operation of system when environment temperature raises can increase thereupon; The pressure that this moment, the deformation element 12 in the consistencyregulator 10 received can increase and compressibility deformation takes place; Piston 14 is given in this deformation transmission after transmission mechanism 13 amplifications, break-in, and piston 14 moves down.Piston 14 tops of consistencyregulator 10 are that liquefied ammonia, bottom are weak aqua ammonia; When piston 14 moves down; Can the weak aqua ammonia of consistencyregulator 10 bottoms be discharged and make it the entering system, get into consistencyregulator 10 tops and there is isopyknic liquefied ammonia from system, to spin off simultaneously.For system, the weak aqua ammonia internal circulating load owing to the liquefied ammonia internal circulating load as cold-producing medium reduces as absorbent increases, and its circulation composition descends, and makes it optimum concentration under trend and this environmental working condition.Otherwise when environment temperature reduced, the pressure of system operation reduced, and the pressure that acts on deformation element 12 lower ends can reduce and extensibility deformation takes place; Piston 14 is given in this deformation transmission after transmission mechanism amplification, break-in; Move on the piston 14, can the liquefied ammonia on consistencyregulator 10 tops be discharged and make it the entering system, get into consistencyregulator 10 bottoms and there is isopyknic weak aqua ammonia from system, to spin off simultaneously; Cold-producing medium ammonia increases in the system, and solution concentration improves.The system that realized can make it the variation of temperature that conforms according to the automatic regulator solution concentration of the variation of environment temperature.
The present invention can be widely used in the bigger diffusion-absorption refrigerating occasions of environmental temperature fluctuation, like fuel oil or combustion type refrigerator, small absorption refrigerator etc.
Claims (2)
1. a concentration self-adapting type diffusion looses-Absorption Refrigerator, comprises reservoir (9), solution heat exchanger (1), siphon pumps (2), generator (3), rectifier (4), condenser (5), evaporimeter (6), gas heat exchanger (7), absorber (8) that pipeline connects successively; Between generator (3) and reservoir (9), be provided with return line, constitute the peripheral passage between generator (3), reservoir (9), solution heat exchanger (1) and the absorber (8) four through solution heat exchanger (1), absorber (8); Between evaporimeter (6), gas heat exchanger (7) and absorber (8) three, be provided with return line and connect, evaporimeter (6), gas heat exchanger (7) and absorber (8) constitute the peripheral passage; It is characterized in that: condenser (5) to the pipeline of gas heat exchanger (7) and solution heat exchanger (1) to being provided with consistencyregulator (10) between the return line of absorber (8); The pipeline connection of gas heat exchanger (7) is arrived through pipeline and condenser (5) in the upper end of said consistencyregulator (10), and the lower end of consistencyregulator (10) is connected with the pipeline of solution heat exchanger (1) to absorber (8); Said consistencyregulator (10) is made up of urceolus (11), deformation element (12), transmission mechanism (13) and piston (14); Said piston (14) is placed among the urceolus (11); Said transmission mechanism (13) is for amplifying lever, and an end of transmission mechanism (13) connects piston (14), and the other end of transmission mechanism (13) connects deformation element (12), and said transmission mechanism (13) is fixed on the sidewall of urceolus (11); The upper end of said deformation element (12) is connected with urceolus (11) through screw thread, and the lower end of deformation element (12) links to each other with transmission mechanism (13) through hinge.
2. refrigeration machine according to claim 1 is characterized in that: said deformation element (12) is a bellows.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101517727A CN101839583B (en) | 2010-04-20 | 2010-04-20 | Concentration self-adapting type diffusion-absorption refrigerating machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101517727A CN101839583B (en) | 2010-04-20 | 2010-04-20 | Concentration self-adapting type diffusion-absorption refrigerating machine |
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| CN101839583A CN101839583A (en) | 2010-09-22 |
| CN101839583B true CN101839583B (en) | 2012-05-30 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US2722806A (en) * | 1951-08-07 | 1955-11-08 | Carrier Corp | Control arrangement for absorption refrigeration system |
| US2870613A (en) * | 1951-08-07 | 1959-01-27 | Carrier Corp | Control arrangement for absorption refrigeration system |
| US6637220B1 (en) * | 2002-07-29 | 2003-10-28 | Carrier Corporation | Dilution cycle for absorption chiller |
| CN201043825Y (en) * | 2007-06-04 | 2008-04-02 | 李智虎 | Novel thermal driving refrigerating machine |
| CN101424461A (en) * | 2008-09-16 | 2009-05-06 | 李智虎 | Concentration self-adapting type ammonia water absorption refrigerating machine |
| CN101566406A (en) * | 2009-05-18 | 2009-10-28 | 李智虎 | Solar photovoltaic and photothermal cogeneration type hybrid heat pump |
| CN201652976U (en) * | 2010-04-20 | 2010-11-24 | 安徽工业大学 | Concentration self-adapting type diffusion-absorption refrigerating machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3868763B2 (en) * | 2001-05-16 | 2007-01-17 | 株式会社荏原製作所 | Absorption refrigerator |
| JP4251878B2 (en) * | 2003-02-05 | 2009-04-08 | 株式会社日立ビルシステム | Diagnostic method and apparatus for absorption chiller / heater |
-
2010
- 2010-04-20 CN CN2010101517727A patent/CN101839583B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2722806A (en) * | 1951-08-07 | 1955-11-08 | Carrier Corp | Control arrangement for absorption refrigeration system |
| US2870613A (en) * | 1951-08-07 | 1959-01-27 | Carrier Corp | Control arrangement for absorption refrigeration system |
| US6637220B1 (en) * | 2002-07-29 | 2003-10-28 | Carrier Corporation | Dilution cycle for absorption chiller |
| CN201043825Y (en) * | 2007-06-04 | 2008-04-02 | 李智虎 | Novel thermal driving refrigerating machine |
| CN101424461A (en) * | 2008-09-16 | 2009-05-06 | 李智虎 | Concentration self-adapting type ammonia water absorption refrigerating machine |
| CN101566406A (en) * | 2009-05-18 | 2009-10-28 | 李智虎 | Solar photovoltaic and photothermal cogeneration type hybrid heat pump |
| CN201652976U (en) * | 2010-04-20 | 2010-11-24 | 安徽工业大学 | Concentration self-adapting type diffusion-absorption refrigerating machine |
Non-Patent Citations (2)
| Title |
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| JP特开2002-340429A 2002.11.27 |
| JP特开2004-239504A 2004.08.26 |
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Application publication date: 20100922 Assignee: Ma'anshan Tianze Energy Technology Co Ltd Assignor: Anhui University of Technology Contract record no.: 2013320000714 Denomination of invention: Concentration self-adapting type diffusion-absorption refrigerating machine Granted publication date: 20120530 License type: Exclusive License Record date: 20131011 |
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