CN2297686Y - Single pump lithium bromide absorption type refrigeration machine - Google Patents
Single pump lithium bromide absorption type refrigeration machine Download PDFInfo
- Publication number
- CN2297686Y CN2297686Y CN 97236337 CN97236337U CN2297686Y CN 2297686 Y CN2297686 Y CN 2297686Y CN 97236337 CN97236337 CN 97236337 CN 97236337 U CN97236337 U CN 97236337U CN 2297686 Y CN2297686 Y CN 2297686Y
- Authority
- CN
- China
- Prior art keywords
- water
- refrigerant
- tube
- lithium bromide
- bromide absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model relates to a single pump lithium bromide absorption type refrigeration machine, which cancels the refrigerant water recycling system and changes the evaporator tube row from a light tube to a screw tube on the basis of the existing lithium bromide absorption refrigerating machine. The lower part of each row of screw tubes is provided with a tray. The side of the tray is provided with a weir opening. The utility model solves the problems of lithium bromide crystallization and refrigerant cryogen water pollution, enhances operational reliability, and saves production cost and operating cost. As the surface area of the screw tube is larger than the surface area of the light tube and the water film formed under the capillary action is far thinner than the water film formed by the large flow recycling refrigerant water, the utility model also has the advantages of high evaporation rate and high refrigerating efficiency.
Description
The utility model relates to a kind of lithium-bromide absorption-type refrigerating machine, particularly a kind ofly can cancel water as refrigerant recirculating system and cryogenic fluid pump thereof, only uses single pump lithium-bromide absorption-type refrigerating machine that a solution pump can operate as normal, belongs to refrigerating field.
Existing lithium-bromide absorption-type refrigerating machine mainly absorbs tube by evaporation, solution pump, heat exchanger, generator, condenser, compositions such as cryogenic fluid pump, wherein, the side that evaporation absorbs in the tube is equipped with water as refrigerant shower nozzle and evaporator tube row etc., opposite side is equipped with bromize lithium concentrated solution shower nozzle and absorber tube row etc., wherein, evaporator tube row is equipped with drip tray in the bottom and is connected with cryogenic fluid pump, cryogenic fluid pump is exported the water as refrigerant shower nozzle on termination evaporimeter top and is formed the water as refrigerant recirculating system, absorber tube row's bottom is promptly evaporated the bottom that absorbs tube and is connected with solution pump, the solution pump output is connected with the generator input through heat exchanger, the concentrated solution output of generator is connected with the dense appearance liquid shower nozzle on evaporimeter top through heat exchanger, and the water vapour output of generator is connected with the water as refrigerant shower nozzle on evaporimeter top through condenser.Mainly be to utilize the higher lithium-bromide solution of concentration to absorb the water vapour that absorbs the water as refrigerant evaporation in the tube and become the thin liquid lithium bromide in the evaporation of low pressure, water as refrigerant can absorb the heat of the chilled water among the evaporator tube row who is in contact with it in a large number when being evaporated to water vapour, the temperature of chilled water is descended, and this chilled water is delivered to colod-application family and can be reached the refrigeration cool-down purpose.But the water yield of the water as refrigerant that obtains owing to the water vapour of separating from the thin liquid lithium bromide very little, be not enough to wetting evaporator tube row, make freezing capacity too low, so, all increase by a cover water as refrigerant recirculating system specially and improve freezing capacity with wetting evaporator tube row.But because the existence of this system, make the evaporation absorption tube of sealing increase some possible gas leakage points, and in case leak air or reason such as extraneous refrigeration duty reduction suddenly all can cause water as refrigerant can't change water vapour into to carry out the transition in the absorber, cause the concentration of thin liquid lithium bromide of output higher, after delivering to generator, solution pump make concentration higher, the lithium bromide crystallization can be produced when in heat exchanger, lowering the temperature at last, kind of refrigeration cycle can be destroyed when serious; From the water vapour that the water vapour output of generator is exported, often have a spot of lithium bromide besides, enter evaporimeter after the condensation and progressively be concentrated, cause water as refrigerant contaminated, reduced refrigerating capacity.
The purpose of this utility model is in order to overcome above-mentioned weak point of the prior art, design a kind of simple and reasonable, the operational reliability height only gets final product operate as normal with solution pump, can solve single pump lithium-bromide absorption-type refrigerating machine of lithium bromide crystallization and refrigerant pollution problem again.
Technical measures of the present utility model mainly are because exist the condensed water recirculating system to cause at the existing shortcoming of existing lithium-bromide absorption-type refrigerating machine, if can cancel the water as refrigerant recirculating system can solve above-mentioned shortcoming, designed a kind of a spot of water as refrigerant of usefulness is that wettable evaporator tube is arranged and the high-efficiency evaporator of cancellation water as refrigerant recirculating system for this reason.Its structure is to change the evaporator tube row that evaporation absorbs in the tube into screwed pipe by light pipe, and a pallet is housed in the bottom of every row's screwed pipe, and the pallet side has crest of weir.
Accompanying drawing is the structural representation that evaporation of the present utility model absorbs tube.
Referring to accompanying drawing, 1 among the figure is evaporator tube row, the 2nd, and cylindrical shell, the 3rd, bromize lithium concentrated solution shower nozzle, the 4th, bromize lithium concentrated solution tube connector, the 5th, water as refrigerant tube connector, the 6th, water as refrigerant shower nozzle, the 7th, evaporimeter screwed pipe pipe row, the 8th, pallet, the 9th, bromize lithium dilute solution tube connector.Wherein, the pitch of evaporimeter screwed pipe can be between 0.1-2mm, and optimum pitch makes it to have capillary syring effect preferably between 0.2-1.2mm, the side of pallet 8 has crest of weir, and the height at the bottom of the crest of weir equals the height of the liquid level energy submergence screwed pipe bottom 1-5mm in the pallet.During use, bromize lithium concentrated solution tube connector 4 is connected with the concentrated solution output of generator through heat exchanger, water as refrigerant tube connector 5 is connected with the water vapour output of generator through condenser, bromize lithium dilute solution tube connector 9 connects solvent pump, the solvent pump output is connected with the generator input through heat exchanger, and evaporimeter screwed pipe pipe row 7 is communicated with colod-application family.During work, the water as refrigerant that flows out from water as refrigerant shower nozzle 6 all flows into a pallet topmost, because the screw thread on the screwed pipe works to do capillary syring, water promptly rises and wetting pipe surface entirely along thread groove, be evaporated certain water as refrigerant, remaining water flows into the wetting and evaporation of next piece pallet for next row's screwed pipe surface through the crest of weir of pallet side, the water as refrigerant constantly evaporation behind each pallet of flowing through, through reasonably design, after flowing to nethermost pallet, can all evaporate.If because of refrigeration duty reduces even when reason such as being closed and causing water as refrigerant to fail all to evaporate, can from following pallet, flow out and in the lithium-bromide solution at the bottom of entering tin, flow with bromize lithium dilute solution, the concentration of having guaranteed lithium-bromide solution is normal, thoroughly solved because of lithium bromide concentration and uprised the problem that produces crystallization, simultaneously owing to there is not the water as refrigerant recirculating system, so can enter automatically yet and do not have the refrigerant pollution problem in the weak solution even in water as refrigerant, have a spot of lithium bromide.
The utility model has been owing to cancelled cryogenic fluid pump and water as refrigerant recirculating system, thoroughly solved the lithium bromide crystallization and The problems such as refrigerant pollution have improved operational reliability, simplify the structure, and have saved production cost and operation use Take; Simultaneously because the screwed pipe surface area is big more than the surface area of light pipe, again since the moisture film that capillarity forms more than The moisture film that big flow recirculation water as refrigerant forms is thin, so also have the fast and refrigerating efficiency advantages of higher of evaporation rate.
Claims (2)
1. a single pump lithium-bromide absorption-type refrigerating machine comprises that evaporation absorbs tube, solution pump, heat exchanger, generator and condenser, it is characterized in that evaporating the evaporator tube row who absorbs in the tube and be screwed pipe, in the bottom of every row's screwed pipe a pallet is housed, the pallet side has crest of weir.
2. single pump lithium-bromide absorption-type refrigerating machine as claimed in claim 1, the pitch that it is characterized in that the evaporimeter screwed pipe is 0.1-2mm, optimum pitch is 0.2-1.2mm, and the side of pallet 8 has crest of weir, and the height at the bottom of the crest of weir equals the height of the liquid level energy submergence screwed pipe bottom 1-5mm in the pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236337 CN2297686Y (en) | 1997-06-16 | 1997-06-16 | Single pump lithium bromide absorption type refrigeration machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236337 CN2297686Y (en) | 1997-06-16 | 1997-06-16 | Single pump lithium bromide absorption type refrigeration machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297686Y true CN2297686Y (en) | 1998-11-18 |
Family
ID=33947230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236337 Expired - Fee Related CN2297686Y (en) | 1997-06-16 | 1997-06-16 | Single pump lithium bromide absorption type refrigeration machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297686Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095289A (en) * | 2011-03-08 | 2011-06-15 | 西安交通大学 | Evaporator |
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN104697022A (en) * | 2013-12-05 | 2015-06-10 | 湖南运达节能科技有限公司 | Three-level evaporation absorption heat pump type heat supply unit |
-
1997
- 1997-06-16 CN CN 97236337 patent/CN2297686Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095289A (en) * | 2011-03-08 | 2011-06-15 | 西安交通大学 | Evaporator |
| CN104697022A (en) * | 2013-12-05 | 2015-06-10 | 湖南运达节能科技有限公司 | Three-level evaporation absorption heat pump type heat supply unit |
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN103791647B (en) * | 2014-02-28 | 2016-01-27 | 湖南运达节能科技有限公司 | Single pump-type lithium bromide absorption-type machine unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |