CN1273784C - Membrane inversion board type falling film absorbing device - Google Patents
Membrane inversion board type falling film absorbing device Download PDFInfo
- Publication number
- CN1273784C CN1273784C CNB200410017168XA CN200410017168A CN1273784C CN 1273784 C CN1273784 C CN 1273784C CN B200410017168X A CNB200410017168X A CN B200410017168XA CN 200410017168 A CN200410017168 A CN 200410017168A CN 1273784 C CN1273784 C CN 1273784C
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- China
- Prior art keywords
- board
- absorbing device
- falling film
- board type
- absorption
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- Expired - Fee Related
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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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- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to an absorbing device used in the industries of refrigeration, air-conditioning, chemical engineering, etc., particularly a membrane inversion board type falling film absorbing device which comprises a solution distributor, absorption liquid and a plurality of rows of board type cooling elements having built-in cooling media. The present invention is characterized in that the board type cooling elements positioned among gases to be absorbed are composed of a plurality of rows, and adjacent rows are crossed, and a board wall side and a phase interface side are partially overlapped; the absorption liquid forms a falling film on a first row of board type elements via the solution distributor, and a liquid film flowing along a board forms alternate inversion between the board wall side and the phase interface side. The membrane inversion board type falling film absorbing device can well transfer heat generated by absorption to the cooling media in order to increase absorption potential difference and enhance heat and mass transferring effect. Compared with the existing falling film absorbing device, the membrane inversion board type falling film absorbing device has the advantages of high heat transfer coefficient, high absorption rate which is increased by 50 %, compact structure and small size, and the present invention is a novel compact falling film absorbing device with high efficiency.
Description
Technical field
The present invention relates to be used for to freeze, the absorber of industry such as air-conditioning, chemical industry, the board-like film-lowering type absorber of particularly a kind of inversion membrane.
Background technology
At present, employed film-lowering type absorber sprays the falling liquid film form based on shell-and-tube in the industries such as refrigeration, air-conditioning and chemical industry.In shell-and-tube spray film-lowering type absorber, as shown in Figure 1, absorb liquid and spray in the following front row tube bank by nozzle segment, and according to this by last comb line to a following comb bundle, liquid is liquid film 1 outside tube wall 3 dirty.Being absorbed medium is gas, is full of the space 4 between the tube and tube, is absorbed into film when contacting with absorption liquid liquid film on the tube wall.Owing to generally will discharge when absorbing and absorb heat, the rising of liquid film temperature, absorbability are weakened, thereby be connected with cooling medium 2 in the pipe, be used to cool off liquid film, strengthen its absorbability.For disturbance in the strengthening membrane absorbs to strengthen, on the pipe groove, fold, decorative pattern, projection etc. can be arranged.
In recent years, board-like falling-film absorber occurs gradually, relatively effective, the high-efficiency compact of shell-and-tube spray falling liquid film its heat and mass of form.Spray different being of film-lowering type absorber with shell-and-tube: board-like falling-film absorber replaces the tubular type cooling element by the riser cooling element, and the formation falling liquid film adopts solution dispenser mostly.In order to strengthen absorption, groove, fold, decorative pattern, projection etc. are arranged on the plate, as shown in Figure 2,1 is liquid film, and 2 is cooling medium, and 4 are full of space between the board-like cooling element for being absorbed gas, and 5 is wooden partition.
A kind of tube type falling-film absorber is arranged at present, between two pipes deflector 6 is being housed up and down, be inverted to the outside when making comb flow to down comb near the interior side liquid of the liquid film of tube wall 3, the liquid film 1 outer side liquid of going up simultaneously the close boundary of comb is inverted to tube wall one side to following comb, make mainly cooling medium 2 absorptions in the absorption heat that boundary produces is easy to be managed like this, absorptivity can improve, used the inversion membrane technology in this absorber, see Fig. 3,4 are full of space between the tubular type cooling element for being absorbed gas among the figure.
Send out summary of the invention
The objective of the invention is board-like falling film absorption and inversion membrane technology are combined, develop a kind of board-like falling-film absorber of heat and mass inversion membrane effective, efficient, compact conformation of new model.
Technical scheme of the present invention is achieved like this, the board-like film-lowering type absorber of a kind of inversion membrane, it comprises solution dispenser, absorption liquid and arranges the board-like cooling element of the built-in cooling medium of setting more along the absorption liquid flow direction, it is characterized in that, be in the board-like cooling element that is absorbed between gas and diverge arrangement between the row along facing mutually of absorption liquid flow direction, the liquid film wooden partition side of adjacent row's board-like cooling element and liquid film boundary side overlap; Make absorption liquid on the board-like cooling element of first row, form falling liquid film by solution dispenser, between wooden partition side and boundary side, form alternately counter-rotating along the liquid film under the plate current.
The board-like film-lowering type absorber of such inversion membrane can make the heat that absorbs generation pass to cooling medium well, increases to absorb potential difference, strengthens the heat and mass effect.The board-like film-lowering type absorber of inversion membrane will be bigger than existing film-lowering type absorber heat transfer coefficient, absorptivity is high by about 50%, and compact conformation, and volume is little.It is a kind of film-lowering type absorber of novel high-efficiency compact
Description of drawings
Fig. 1 is shell-and-tube spray film-lowering type absorber principle schematic,
Fig. 2 is board-like falling-film absorber principle schematic;
Fig. 3 tubular membrane counter-rotating spray film-lowering type absorber principle schematic;
The board-like film-lowering type absorber of Fig. 4 the present invention one inversion membrane
The specific embodiment
By shown in Figure 4, the board-like film-lowering type absorber of a kind of inversion membrane, it comprises solution dispenser, absorption liquid and arranges the board-like cooling element of the built-in cooling medium of setting more along the absorption liquid flow direction, be characterized in, be in the board-like cooling element that is absorbed between gas and diverge arrangement between the row along facing mutually of absorption liquid flow direction, the liquid film wooden partition side 5 and the liquid film boundary side 7 of adjacent row's board-like cooling element overlap; Make absorption liquid on the board-like cooling element of first row, form falling liquid film by solution dispenser, between wooden partition side and boundary side, form alternately counter-rotating along the liquid film under the plate current, can make the heat that absorbs generation pass to cooling medium well like this, increase the absorption potential difference, strengthen the heat and mass effect.
Claims (1)
1, the board-like film-lowering type absorber of a kind of inversion membrane, it comprises solution dispenser, absorption liquid and arranges the board-like cooling element of the built-in cooling medium of setting more along the absorption liquid flow direction, it is characterized in that, be in the board-like cooling element that is absorbed between gas and arrange along fork between the adjacent row of absorption liquid flow direction, the liquid film wooden partition side of adjacent row's board-like cooling element and liquid film boundary side overlap; Make absorption liquid on the board-like cooling element of first row, form falling liquid film by solution dispenser, between wooden partition side and boundary side, form alternately counter-rotating along the liquid film under the plate current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410017168XA CN1273784C (en) | 2004-03-24 | 2004-03-24 | Membrane inversion board type falling film absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410017168XA CN1273784C (en) | 2004-03-24 | 2004-03-24 | Membrane inversion board type falling film absorbing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563860A CN1563860A (en) | 2005-01-12 |
| CN1273784C true CN1273784C (en) | 2006-09-06 |
Family
ID=34478805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410017168XA Expired - Fee Related CN1273784C (en) | 2004-03-24 | 2004-03-24 | Membrane inversion board type falling film absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273784C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007692B (en) * | 2012-12-21 | 2014-08-06 | 东南大学 | Shell-and-pipe horizontal type liquid-film flip falling film absorption device |
| CN103983047B (en) * | 2014-05-21 | 2016-01-13 | 东南大学 | A kind of two-way from the board-like falling film absorbing device of disturbance |
| CN103983048B (en) * | 2014-05-27 | 2016-04-06 | 东南大学 | A kind of horizontal liquid film of the shell of Ω shape spring that adopts overturns falling film absorbing device |
-
2004
- 2004-03-24 CN CNB200410017168XA patent/CN1273784C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1563860A (en) | 2005-01-12 |
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| C14 | Grant of patent or utility model | ||
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| 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 |