CN2583602Y - Lithium bromide absorption type refrigerating device composed of full plate fin tube heat exchanger - Google Patents
Lithium bromide absorption type refrigerating device composed of full plate fin tube heat exchanger Download PDFInfo
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- CN2583602Y CN2583602Y CN 02261720 CN02261720U CN2583602Y CN 2583602 Y CN2583602 Y CN 2583602Y CN 02261720 CN02261720 CN 02261720 CN 02261720 U CN02261720 U CN 02261720U CN 2583602 Y CN2583602 Y CN 2583602Y
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Abstract
The utility model relates to a lithium bromide absorption type refrigerating device composed of a full plate finned type heat-mass exchanger. The utility model mainly comprises an absorber, a generator, an evaporator, a condenser, a solution exchanger, etc. The utility model is characterized in that each component after the reasonable retrofitting operation can form a plate finned type heat exchanger; the liquid in each component can effectively be refrigerated or heated, so that the heat and mass transferring capacity can be enhanced. The utility model has the advantages of large transfer coefficient, compact structure, small size, and low cost. Thus, the plate finned type heat exchanger can be applied to the lithium bromide absorption type refrigerating device. The utility model can change the large, foolish, stupid, and thick image of the existing lithium bromide absorption type refrigerating device. The utility model can reduce the initial investment, and the utility model is good for popularization and application of the device.
Description
Technical field
The utility model relates to the lithium bromide water absorption refrigerating plant that a kind of full plate fin type heat and mass exchanger is formed, and belongs to refrigeration, air-conditioning industrial circle.
Background technology
At present, the lithium bromide water absorption refrigerating plant parts generally adopt shell-and-tube heat exchanger in refrigeration, the air conditioner industry, there is problem such as conduct heat, mass tranfer coefficient is low, poor, the more little relative cost of compactedness is expensive more in the equipment of this structure, cause that the lithium bromide water absorption refrigerating plant machine volume is big, Heavy Weight, initial cost height, apply unfavorable.Two parts with most critical in the lithium bromide water absorption refrigerating plant---absorber, generator are example.Conventional absorber and advanced generator are horizontal shell spray falling liquid film forms, and general generator is risen form for the shell-and-tube pond, is a kind of of immersion, adopts the more expensive copper tube of good heat-transfer price, and the overall heat transfer coefficient has only 700-1200W/ (m
2K), adopt enhanced tube, heat transfer coefficient is also only at 1500W/ (m
2K) about.At present, plate-fin heat exchanger is by the industrial quarters extensive use, its efficiently the compactedness of heat transfer property and height generally acknowledged by everybody.Yet, the lithium bromide water absorption refrigerating plant that still useless so far plate-fin heat and mass exchanger is formed.
Summary of the invention
The purpose of this utility model is existing with the shortcoming of shell-and-tube heat exchanger as the lithium bromide water absorption refrigerating plant of parts, the lithium bromide water absorption refrigerating plant that provides a kind of full plate fin type heat and mass exchanger to form in order to overcome.
The technical solution of the utility model is: lithium bromide water absorption refrigerating plant mainly comprises parts such as absorber, generator, evaporimeter, solution heat exchanger, condenser, is characterized in that above-mentioned each parts are the plate-fin heat and mass exchanger.Absorber: solution side is a film-lowering type, adopts plank frame, and the cooling medium side is a plate-fin; Generator: solution side is a film-lowering type, adopts plank frame, and the heat medium side is a plate-fin; Evaporimeter: the evaporated vapor side is board-like, and the refrigerant medium is a plate-fin structure; Condenser: the condensed steam side is board-like, and cooling medium is a plate-fin structure; Solution heat exchanger: the cold fluid and hot fluid bilateral adopts board-like or plate-fin structure.Because this installs each parts and adopts full plate fin type heat and mass exchanger, liquid can effectively cool off or heating, heat and mass ability improve, and carry-over factor is big, and compact conformation, volume-diminished, and cost reduces.Therefore, plate-fin heat exchanger is applied to lithium bromide water absorption refrigerating plant, can changes the stupid big stupid thick image of present lithium bromide water absorption refrigerating plant, reduce initial cost, help this device and apply.
Description of drawings
Fig. 1 forms schematic diagram for the lithium bromide water absorption refrigerating plant that the full plate fin type heat and mass exchanger is formed;
Fig. 2 is the basic structure as absorber, generator, evaporimeter, condenser plate fin type heat exchanger
Figure;
Fig. 3 is the absorber workflow diagram;
Fig. 4 is the generator workflow diagram;
Fig. 5 is the evaporator operation flow chart;
Fig. 6 is the condenser working flow chart;
Fig. 7 is the solution heat exchanger workflow diagram.
The specific embodiment
By shown in Figure 1, the lithium bromide water absorption refrigerating plant that the full plate fin type heat and mass exchanger is formed is made up of absorber 1, generator 2, evaporimeter 3, condenser 4, solution heat exchanger 5, injector 6, pump 7, pipeline 8 etc., Fig. 2 is the basic block diagram as absorber, generator, evaporimeter, condenser plate fin type heat exchanger, solution heat exchanger can adopt this structure, also can be common board-like, plate-fin heat exchanger.After fluid B enters heat exchanger, be assigned in each fin 9 side runner, be pooled to another outlet again and flow out.Fluid A is in housing 10 side flow.Plate fin type heat exchanger is changed shape according to the operating characteristic of different parts be applied to each parts of system, see following each part description.
(1) absorber: solution side is a film-lowering type, adopts plank frame; The cooling medium side is a plate-fin.Absorber is the core component of system.The workflow of absorber is as shown in Figure 3: scheme last 11 expression lithium-bromide solutions, 12 expression water vapours, the import and export of 13,14 expression cooling waters.Lithium-bromide solution flows into each splitter box respectively after entering flash chamber, go into each overflow launder by the splitter box overflow, again by the both sides of overflow launder drip to each cloth stream plate, form falling liquid film, the steam in the liquid film absorbing path, the heat and mass transfer process of realization lithium-bromide solution, in the fin wing passage is cooling water, to reduce the liquid film temperature, take away lithium-bromide solution and absorb because of absorbing the heat of dilution that steam produces, strengthening.
The key technology of these parts is:
1. according to the working condition of absorber, design and make special plate fin structure and annex to guarantee the realization of falling liquid film, it is board-like absorbing side, helps film forming; Cold side has fin, helps conducting heat;
2. steam channel adopts wide structure, helps reducing the steam flow rate and the pressure loss;
3. the area of the relative equal volume shell-and-tube of the absorption area of steam absorber has improved greatly, has strengthened thereby mass transfer effect is corresponding;
4. to each cloth stream plate, the pressure that needs is little through shunting, overflow, drip for the lithium-bromide solution that enters absorber, can reduce the pump merit or without pump.
(2) generator: solution side is a film-lowering type, adopts plank frame; The heat medium side is a plate-fin.Generator adopts the semi-immersion working method, its workflow as shown in Figure 4: the weak solution of coming from absorber is entered by the import department 15 of generator, is sprayed on the falling liquid film plate by nozzle, and plate fin type heat exchanger partly floods, and forms semi-immersion; Hot water passes in and out from two runners 16 of plate fin type heat exchanger respectively.After the weak solution and the hot water heat exchange in the plate fin type heat exchanger in the generator, steam will be separated from solution, and from steam pipe 17 outflows at top, weak solution will concentrate, and becomes concentrated solution and flows out from bottom solution pipe 18.
(3) evaporimeter: the condensation side steam side is board-like, and the water side is a plank frame.Evaporimeter is the semi-immersion working method.Its workflow is as shown in Figure 5: the condensed water that comes out from condenser from import 20 inflow evaporators, partly floods plate fin type heat exchanger behind U type tube coupling stream, forms semi-immersion.Enter the condensed water part evaporation of evaporimeter, flowed out by steam outlet pipe 19, a part flows out from outlet at bottom pipe 22, returns evaporimeter by inlet tube 21 behind refrigerant pump.The water as refrigerant of returning evaporimeter is sprayed on the plate fin type heat exchanger by nozzle.Chilled water is by two runners, 23 turnover of plate fin type heat exchanger, with the water as refrigerant generation heat exchange in the evaporimeter.
(4) condenser
The workflow of condenser is as shown in Figure 6: from two passages, 25,26 turnover of plate fin type heat exchanger, make heat exchange mode is adverse current to cooling water respectively.Steam from generator is come enters condenser by overhead vapor pipe 24, and the water cooling that is cooled becomes condensed water, is flowed out by bottom pipe 27.
(5) solution heat exchanger: the cold fluid and hot fluid bilateral can adopt board-like or plate-fin.The workflow of solution heat exchanger is as shown in Figure 7: weak solution from two runners, 30,29 turnover of plate fin type heat exchanger, is advanced from below respectively, goes out above, and making heat exchange mode is adverse current.Concentrated solution enters from top duct 28, after weak solution heat exchange in the plate fin type heat exchanger, flows out from bottom pipe 31.
Claims (1)
1, a kind of lithium bromide water absorption refrigerating plant of full plate fin type heat and mass exchanger composition, it mainly comprises absorber (1), generator (2), evaporimeter (3), condenser (4), solution heat exchanger (5), it is characterized in that, above-mentioned each parts constitute for the full plate fin type heat and mass exchanger, absorber (1): solution side is a film-lowering type, adopt plank frame, the cooling medium side is a plate-fin; Generator (2): solution side is a film-lowering type, adopts plank frame, and the heat medium side is a plate-fin; Evaporimeter (3): the evaporated vapor side is board-like, and the heat medium side is a plate-fin structure; Condenser (4): the condensed steam side is board-like, and the cooling medium side is a plate-fin structure; Solution heat exchanger (5): the cold fluid and hot fluid bilateral adopts board-like or plate-fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261720 CN2583602Y (en) | 2002-11-20 | 2002-11-20 | Lithium bromide absorption type refrigerating device composed of full plate fin tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261720 CN2583602Y (en) | 2002-11-20 | 2002-11-20 | Lithium bromide absorption type refrigerating device composed of full plate fin tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583602Y true CN2583602Y (en) | 2003-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02261720 Expired - Fee Related CN2583602Y (en) | 2002-11-20 | 2002-11-20 | Lithium bromide absorption type refrigerating device composed of full plate fin tube heat exchanger |
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| CN (1) | CN2583602Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865088A (en) * | 2015-01-20 | 2016-08-17 | 北京航空航天大学 | Plate-fin-type flat heat pipe absorber |
-
2002
- 2002-11-20 CN CN 02261720 patent/CN2583602Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865088A (en) * | 2015-01-20 | 2016-08-17 | 北京航空航天大学 | Plate-fin-type flat heat pipe absorber |
| CN105865088B (en) * | 2015-01-20 | 2018-10-19 | 北京航空航天大学 | A kind of plate-fin flat-plate heat pipe absorber |
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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 |