CN1737455A - Small-sized lithium bromide absorbing refrigerator - Google Patents
Small-sized lithium bromide absorbing refrigerator Download PDFInfo
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- CN1737455A CN1737455A CNA2005100413185A CN200510041318A CN1737455A CN 1737455 A CN1737455 A CN 1737455A CN A2005100413185 A CNA2005100413185 A CN A2005100413185A CN 200510041318 A CN200510041318 A CN 200510041318A CN 1737455 A CN1737455 A CN 1737455A
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- low pressure
- pressure generator
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- lithium bromide
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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
This invention relates to a small-sized lithium bromide absorption refrigerator, which belongs to refrigeration apparatus technique field. The refrigerator comprises low-voltage generator (1), chiller (2), evaporator (3) and absorber (4), characterized in that said four elements are set in a same barrel (5), wherein the low-voltage generator (1) and the chiller (2) is in a same pressure cavity, forming top generator-chiller cavity: the low-voltage generator (1) is set in the top of the barrel, and the chiller (2) is set in the lower of the low-voltage generator; the evaporator (3) and absorber (4) is set in a same pressure cavity, forming lower evaporate-absorbing cavity: the absorber (4) is set in peripheral, while the evaporator (3) is set in the central.
Description
Technical field:
The present invention relates to a kind of refrigeration machine, be specifically related to a kind of small-sized lithium bromide absorbing refrigerator.Belong to technical field of refrigeration equipment.
Background technology:
Lithium-bromide absorption-type refrigerating machine generally is made up of high pressure generator, low pressure generator, condenser, absorber, evaporimeter, high and low temperature heat exchanger and canned motor pump, pipeline etc.Wherein low pressure generator and cooler belong to a pressure area, usually both are placed on a cylindrical shell the inside, form low sending out-the condenser cylindrical shell, arrange and the dual mode that is arranged above and below about low pressure generator and cooler have in same cylindrical shell.The mode that wherein is arranged above and below condenser is arranged in the low pressure generator top, its objective is in order to prevent refrigerant pollution.Therefore evaporimeter and the absorber pressure area that exists together places them same housing usually, forms evaporation-absorber cylindrical shell.Evaporimeter and the absorber arrangement in same cylindrical shell mainly contains and is arranged in parallel with stacked up and down.Be arranged in parallel but can be divided into about be arranged in parallel and the left, center, right is arranged in parallel.It mainly has the following disadvantages:
1, low pressure generator is in arranged beneath up to press condenser, and the condenser water pond need be provided with thermal insulation layer, complex structure, and the cost height, on the other hand, the potential difference of the solution inflow absorber of low pressure generator is very little, and the concentrated solution absorption techniques can't use.
2, low pressure generator heat-transfer pipe pipe row is highly high, and low pressure generator fluid column static pressure is big to the influence of conducting heat, and the low pressure generator heat-transfer effect is lower, the whole height height of unit;
3, low pressure generator adopts liquid barrier group retaining liquid, the manufacture difficulty height, and consumptive material is many;
4, condenser must be provided with thermal insulation layer between low pressure generator and the evaporation-absorber at last low pressure generator at following arrangement, complex structure, and the manufacture difficulty height, consumptive material is many, and unit volume is big;
5, evaporimeter cryogenic fluid pump cloth liquid, consumptive material is many, and unit volume is big.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and whole device size and weight are had further reduce, the small-sized lithium bromide absorbing refrigerator that manufacturing cost, operating cost reduce.
The object of the present invention is achieved like this: a kind of small-sized lithium bromide absorbing refrigerator, comprise low pressure generator, condenser, evaporimeter and absorber, it is characterized in that: described low pressure generator and condenser, evaporimeter and absorber are arranged in same cylindrical shell the inside, wherein low pressure generator and condenser are arranged in same pressure chamber, form the low-condenser chamber in top, adopt arrangement up and down, low pressure generator is arranged in the cylindrical shell the top, and condenser is arranged in the low pressure generator below; Described evaporimeter and absorber arrangement are formed evaporation-absorber chamber, bottom at same pressure chamber, and absorber arrangement is in periphery, in the middle of evaporimeter is arranged in.
Small-sized lithium bromide absorbing refrigerator of the present invention, the heat-transfer pipe of described low pressure generator, condenser and evaporimeter all adopts plane curved tube.
Small-sized lithium bromide absorbing refrigerator of the present invention, described low pressure generator arranging mode of heat conduction pipe is: spiraled to the inner ring shape that is tilted down by the pipe outer ring, the low pressure generator bottom shell is close in the bottom.
Small-sized lithium bromide absorbing refrigerator of the present invention, described low pressure generator liquid distributor is at low pressure generator heat-transfer pipe outer circumference cloth liquid.
Like this, make refrigerant vapour occurred frequently enter heat-transfer pipe, outside pipe, under the condensation of solution, coagulate water, coagulate water out (low level) at last in the inboard and flow out, after throttling, enter the Water in Condenser dish along under the heat-transfer pipe screw from steam inlet, the outside (high position).Manage outer intermediate solution at outer circumference cloth liquid, make solution along the heat-transfer pipe incline direction, in layer climb over heat-transfer pipe, absorb the heat of refrigerant vapour occurred frequently in the heat-transfer pipe, heating concentrates intermediate solution, isolates the concentrated solution that forms behind the refrigerant vapour and climbs in the low pressure generator coil pipe side shield and gather the back from low pressure generator bottom liquid capsule and flow out low pressure generator and enter low temperature heat exchanger.Isolated low pressure generator refrigerant vapour enters condenser through the labyrinth-like air flue.Condensation is coagulated water and low pressure generator pipe from the refrigerant vapour occurred frequently in the low pressure generator heat-transfer pipe and is added and pine for the isolated low pressure generator refrigerant vapour of a solution, the low pressure generator refrigerant vapour is condensed, refrigerant vapour occurred frequently enters the Water in Condenser dish after coagulating water for cooling, the water as refrigerant that accumulates in the condenser water pond enters U type pipe after throttling, enter evaporimeter through U type pipe.
Small-sized lithium bromide absorbing refrigerator of the present invention, described heat-transfer pipe of evaporator arrangement adopts multilayer different tube diameters heat-transfer pipe to arrange, press caliber size arranged from top to bottom, caliber is big be arranged in above, caliber is little is arranged in the below, and every adjacent two of heat-transfer pipe is close together.
Small-sized lithium bromide absorbing refrigerator of the present invention, described absorber adopt solution pump spray cloth liquid, direct cloth liquid mode behind the evaporimeter employing U type pipe feed liquor.
Water as refrigerant enters the circumference liquid distributor through U type pipe, drop in the inclined to one side inner surface of first floor heat-transfer pipe periphery tube hub through liquid distributor, when water as refrigerant is dripped, have only very little a part of water as refrigerant can climb over the outermost tubes upper surface on the first floor heat-transfer pipe outermost tubes and arrive the pipe outermost surfaces, just in time evaporated fully, make full use of heat transfer area, reduce water as refrigerant and directly drip, cause the water as refrigerant short circuit along edge in outermost tubes outer or the hub-side tube.Water as refrigerant is in the heat of vaporization of horizontal coil pipe upper surface absorption tube inner cold water like this, the water as refrigerant that does not evaporate is to twist over to one one of center position along the outside on first floor horizontal coil pipe, two layers is that direction is mobile laterally along the center, three layers is again to flow along the lateral center position, carries out so successively.Though because every horizontal coil pipe adjacent tubes is close together, but there is certain clearance, therefore water as refrigerant is after the horizontal coil pipe upper surface spreads apart, there is the sub-fraction water as refrigerant to arrive the heat-transfer pipe lower surface by the very little gap between adjacent two pipes, but because the gap is very little, this part water as refrigerant just in time evaporates totally fully at lower surface, has made full use of heat transfer area.The water as refrigerant that does not evaporate that flows on the first floor horizontal coil pipe gathers at inside tube lower surface, forms to splash into the inside tube outer upper surface of two layers of horizontal coil pipe behind the water droplet, carries out successively from the upper strata to the orlop like this, all evaporates until water as refrigerant.
Compared with prior art, the present invention has following advantage:
1, adopts low pressure generator to arrange up and down following, saved condenser water pond thermal insulation layer at last condenser; On the other hand, draw back the distance between low pressure generator and the absorber, guaranteed the proper flow of solution recycle system concentrated solution;
2, the heat-transfer pipe of low pressure generator, condenser adopts plane curved tube, low pressure generator, condenser tube row height have been reduced, reduced of the influence of low pressure generator fluid column static pressure, improved the low pressure generator heat-transfer effect, reduced the whole height of unit again conducting heat;
3, low pressure generator has reduced manufacture difficulty, economical with materials with the manufacturing of labyrinth type liquid-blocking device replacement liquid barrier group;
4, condenser is arranged in evaporation-absorber top, saved former condenser at last low pressure generator at the low pressure generator of the necessary setting of arrangement institute down and the thermal insulation layer between evaporation-absorber, reduced manufacture difficulty, saved material, reduced volume;
5, evaporimeter has been cancelled cryogenic fluid pump cloth liquid, and direct cloth liquid mode behind the employing U type pipe feed liquor has also been saved material, has reduced volume.
Therefore the present invention can make whole device size and weight have further to reduce.So not only reduce the initial cost cost, reduced the electric power consumption of canned motor pump, also reduced the day-to-day operation expense.
Description of drawings:
Fig. 1 is the low pressure generator-condenser and the evaporation-absorber device layout drawing of small-sized lithium bromide absorbing refrigerator of the present invention.
Fig. 2 is low pressure generator, the condenser plane curved tube schematic diagram of small-sized lithium bromide absorbing refrigerator of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the evaporimeter plane curved tube schematic diagram of small-sized lithium bromide absorbing refrigerator of the present invention.
Fig. 5 is the A-A cut-away view of Fig. 4.
The specific embodiment:
The present invention is a kind of small-sized lithium bromide absorbing refrigerator, mainly is made up of high pressure generator, high-temperature heat exchanger, low temperature heat exchanger, low pressure generator 1, condenser 2, evaporimeter 3, absorber 4, solution pump and the pipeline, valve member etc. that connect this system.
Referring to Fig. 1, Fig. 1 is the low pressure generator-condenser and the evaporation-absorber device layout drawing of a kind of small-sized lithium bromide absorbing refrigerator involved in the present invention.This device is made up of top low pressure generator-condenser chamber and evaporation-absorber chamber, bottom.
Low pressure generator 1 is arranged in cylindrical shell 5 topmosts in described low pressure generator-condenser cavity, and condenser 2 is arranged in low pressure generator 1 below.Low pressure generator 1 heat-transfer pipe 1.1 adopts the plane heat transfer coils, is spiraled to the inner ring shape that is tilted down by the pipe outer ring, and low pressure generator 1 bottom shell is close in the bottom.The intermediate solution that liquid distributor 1.2 plants flows to the outermost heat-transfer pipe under the water conservancy diversion of baffle plate 1.3, solution climbs over heat-transfer pipe by root and is concentrated by refrigerant vapour heating occurred frequently in the pipe, isolate the low pressure generator refrigerant vapour, and be condensed into concentrated solution, concentrated solution climbs over liquid barrier 1.8 and enters low lotion capsule 1.4, derives the low temperature heat exchanger shell side that enters refrigeration machine by concentrated solution drain pipe 1.10.Gas-liquid separation behind the labyrinth type retaining liquid passage that isolated low pressure generator refrigerant vapour is formed via baffle plate 1.5,1.6, the passage that refrigerant vapour is formed by pneumatic duct 1.7 enters condenser 2.Refrigerant vapour occurred frequently is entered by the pipe outside in the low pressure generator 1 heat transfer dish 1.1, be condensed behind the outer solution of heating tube, what form coagulates water from managing inboard the outflow, enters condenser 2 by coagulating water throttle pipe 1.9 after throttling, and facing with fixed attention in the condenser 2 bottom water ponds, water throttle pipe 1.9 is provided with impingement baffle 2.2.Condenser 2 heat-transfer pipes 2.1 adopt horizontal coil pipe.Cooling water condensation is coagulated water from the refrigerant vapour and the refrigerant vapour from occurred frequently through coagulating water throttle pipe 1.9 of low pressure generator in condenser 2 heat-transfer pipes 2.1 pipes, enter the condenser water pond jointly after making low pressure generator refrigerant vapour cooling back condensation and refrigerant vapour occurred frequently coagulate water for cooling, after compiling by water as refrigerant box 2.3, through orifice restriction after U type pipe enters evaporimeter 3.
In described evaporation-absorber cavity, absorber 4 heat-transfer pipes 4.1 are arranged in cylindrical shell 5 excircles, in the middle of evaporimeter 3 heat-transfer pipes 3.1 are arranged in.Evaporimeter 3 heat-transfer pipes adopt horizontal heat transfer coils.Heat-transfer pipe of evaporator 3.1 has five kinds of specification 3.1.1,3.1.2,3.1.3,3.1.4,3.1.5, arrangement adopts multilayer different tube diameters heat-transfer pipe to arrange, press caliber size arranged from top to bottom, caliber is big is arranged in the top, caliber is little is arranged in the below, and every adjacent two of heat-transfer pipe is close together.The water as refrigerant that comes by U type pipe through liquid distributor 3.2 cloth liquid in first floor heat transfer coils 3.1.1 periphery pipe upper surface inboard, the sub-fraction water as refrigerant climbs over pipe upper surface highest point, arrive the pipe outside, just in time be evaporated, the sub-fraction water as refrigerant arrives the pipe lower surface from the adjacent tubes gap, just in time be evaporated, remaining water as refrigerant evaporates at the coil pipe upper surface, the heat of absorption tube inner cold water, make pipe inner cold water cooling, one one of the outer water as refrigerant that does not evaporate of pipe climbs over from the horizontal coil pipe upper surface, drops in the second layer horizontal coil pipe 3.1.2 inside tube upper surface outside, the evaporation process of repetition on the ground floor horizontal coil pipe, just the water as refrigerant flow direction is opposite with ground floor.Proceed like this,--until orlop horizontal coil pipe 3.1.5, water as refrigerant is all evaporated----.The air flue that the refrigerant vapour that the water as refrigerant evaporation produces forms through baffle plate 3.3 sucks absorber tube row 4.1, absorb by the concentrated solution of liquid distributor 4.2 cloth on absorber heat-transfer pipe 4.1 surfaces, emitting heat is simultaneously taken away by cooling water in the absorber heat-transfer pipe, the concentrated solution dilution that has absorbed refrigerant vapour forms weak solution and accumulates in cylindrical shell 5 bottoms, is got by solution pump and enters the solution circulation.
Fig. 2, the 3rd, the low pressure generator of small-sized lithium bromide absorbing refrigerator involved in the present invention, condenser heat-transfer pipe horizontal coil pipe figure.The low pressure generator heat-transfer pipe is skewed by the outer ring to inner ring and spirals, and the water as refrigerant that in-tube condensation is become can flow out from the outside to the inboard smoothly.The condenser heat-transfer pipe is horizontally disposed.
Fig. 4, the 5th, the heat-transfer pipe of evaporator arrangement mode figure of small-sized lithium bromide absorbing refrigerator involved in the present invention.It is horizontally disposed that heat-transfer pipe of evaporator is, and adjacent two pipes of heat-transfer pipe are close together, and make water as refrigerant at the heat-transfer pipe upper surface, can only have sub-fraction to ooze to lower surface by the slit, and all the other climb over from upper surface.
Claims (8)
1, a kind of small-sized lithium bromide absorbing refrigerator, comprise low pressure generator (1), condenser (2), evaporimeter (3), absorber (4), it is characterized in that: described low pressure generator (1) is arranged in same cylindrical shell (5) the inside with condenser (2), evaporimeter (3) with absorber (4), wherein low pressure generator (1) is arranged in same pressure chamber with condenser (2), form the low-condenser chamber in top, adopt arrangement up and down, low pressure generator (1) is arranged in simplified (5) the top, and condenser (2) is arranged in low pressure generator (1) below; Described evaporimeter (3) is arranged in same pressure chamber with absorber (4), forms evaporation-absorber chamber, bottom, and absorber (4) is arranged in periphery, in the middle of evaporimeter (3) is arranged in.
2, a kind of small-sized lithium bromide absorbing refrigerator according to claim 1 is characterized in that: the heat-transfer pipe (1.1,2.1,3.1) of described low pressure generator (1), condenser (2) and evaporimeter (3) all adopts plane curved tube.
3, a kind of small-sized lithium bromide absorbing refrigerator according to claim 2, it is characterized in that: described low pressure generator heat-transfer pipe (1.1) arrangement is: spiraled to the inner ring shape that is tilted down by the pipe outer ring, low pressure generator (1) bottom shell is close in the bottom.
4, a kind of small-sized lithium bromide absorbing refrigerator according to claim 3 is characterized in that: described low pressure generator liquid distributor (1.2) is at low pressure generator heat-transfer pipe (1.1) outer circumference cloth liquid.
5, a kind of small-sized lithium bromide absorbing refrigerator according to claim 3 is characterized in that: low pressure generator (1) adopts labyrinth type liquid-blocking device (1.7,1.8).
6, according to claim 2 or 3,4,5 described a kind of small-sized lithium bromide absorbing refrigerators, it is characterized in that: described heat-transfer pipe of evaporator (3.1) arrangement adopts multilayer different tube diameters heat-transfer pipe to arrange, press caliber size arranged from top to bottom, caliber is big is arranged in the top, caliber is little is arranged in the below, and every adjacent two of heat-transfer pipe is close together.
7, a kind of small-sized lithium bromide absorbing refrigerator according to claim 6 is characterized in that: described absorber (4) adopts solution pump spray cloth liquid, direct cloth liquid mode behind evaporimeter (3) the employing U type pipe feed liquor.
8, a kind of small-sized lithium bromide absorbing refrigerator according to claim 7 is characterized in that: the described water as refrigerant that comes by U type pipe through evaporimeter (3) liquid distributor (3.2) cloth liquid in evaporimeter (3) first floor heat transfer coils (3.1.1) periphery pipe upper surface inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100413185A CN1307395C (en) | 2005-08-01 | 2005-08-01 | Small-sized lithium bromide absorbing refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100413185A CN1307395C (en) | 2005-08-01 | 2005-08-01 | Small-sized lithium bromide absorbing refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737455A true CN1737455A (en) | 2006-02-22 |
| CN1307395C CN1307395C (en) | 2007-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100413185A Active CN1307395C (en) | 2005-08-01 | 2005-08-01 | Small-sized lithium bromide absorbing refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802015A (en) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | Absorption refrigeration unit throttling arrangement |
| CN113175764A (en) * | 2021-04-26 | 2021-07-27 | 清华大学 | Spiral tube type absorption heat exchanger for district heating |
| CN113175763A (en) * | 2021-04-26 | 2021-07-27 | 清华大学 | Multilayer multi-head spiral tube type absorption heat exchange unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2288398Y (en) * | 1997-02-25 | 1998-08-19 | 上海东明暖通工程成套有限公司 | Modularization lithium bromide absorption apparatus for cooling or heating water |
| US5946937A (en) * | 1998-01-14 | 1999-09-07 | Gas Research Institute | Dual loop triple effect absorption chiller utilizing a common evaporator circuit |
| CN2351717Y (en) * | 1998-08-22 | 1999-12-01 | 衡阳市经发制冷空调实业有限公司 | Single-drum type steam double-efficient lithium bromide absorption cooling water machine unit |
| CN2811869Y (en) * | 2005-08-02 | 2006-08-30 | 江苏双良空调设备股份有限公司 | Small-sized lithium bromide absorption type refrigerator |
-
2005
- 2005-08-01 CN CNB2005100413185A patent/CN1307395C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802015A (en) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | Absorption refrigeration unit throttling arrangement |
| CN113175764A (en) * | 2021-04-26 | 2021-07-27 | 清华大学 | Spiral tube type absorption heat exchanger for district heating |
| CN113175763A (en) * | 2021-04-26 | 2021-07-27 | 清华大学 | Multilayer multi-head spiral tube type absorption heat exchange unit |
| CN113175764B (en) * | 2021-04-26 | 2022-06-24 | 清华大学 | Spiral tube type absorption heat exchanger for district heating |
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| Publication number | Publication date |
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| CN1307395C (en) | 2007-03-28 |
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Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100910 |
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Effective date of registration: 20100910 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 6 West Patentee after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 6 West Patentee before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |