CN202361704U - Falling-film evaporator - Google Patents
Falling-film evaporator Download PDFInfo
- Publication number
- CN202361704U CN202361704U CN2011204282831U CN201120428283U CN202361704U CN 202361704 U CN202361704 U CN 202361704U CN 2011204282831 U CN2011204282831 U CN 2011204282831U CN 201120428283 U CN201120428283 U CN 201120428283U CN 202361704 U CN202361704 U CN 202361704U
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- Prior art keywords
- film evaporator
- utility
- evaporimeter
- model
- distributor
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Abstract
The utility model relates to a falling-film evaporator, comprising a distributor and a guide plate arranged below the distributor; according to the utility model, because the evaporator adopts a mixed type that an upper portion is a spraying type and a lower portion is a flooded type, heat exchange effects are significant; and structures are simple and practical.
Description
Technical field
The utility model relates to a kind of downward film evaporator, relates in particular to the structure of this downward film evaporator.
Background technology
Visible by Fig. 1: as to comprise in the refrigeration plant that compressor 1, condenser 2, coolant throttle device 3, economizer 4 and evaporimeter 5 form.Wherein the major function of evaporimeter is to let refrigerant be evaporated to gaseous state by liquid state; In this phase transition process; Refrigerant need absorb a large amount of latent heat, makes gas such as the water or the bittern of heat exchange with it, and the refrigerant that heat is evaporated through evaporimeter the time cools off; So evaporimeter is a kind of heat exchanger that cold-producing medium (refrigerant) evaporates therein, and its objective is specific fluid cooling.
At the handpiece Water Chilling Units of large-scale central air-conditioning use or the bittern unit of large-scale refrigerator use, its evaporimeter mainly contains three kinds of patterns: 1, dry evaporator; 2, flooded evaporator; 3, downward film evaporator; Wherein full-liquid type and downward film evaporator efficient are higher, and the about full-liquid type of filling quantity of refrigerant of falling film type is half the, so downward film evaporator is a state-of-the-art a evaporimeter in the present refrigeration plant.
Visible by Fig. 2: refrigerant spontaneous evaporation Guan Zhen top distributor 6 evenly sprays downwards, and liquid refrigerants flows downward after the heat exchanger tube surface forms film, behind the heat of the water of liquid refrigerants in absorbing flowing pipe, is evaporated to gaseous state.Because water is cooled in pipe gradually; So the heat transfer temperature difference of each position refrigerant rainwater is different among the Guan Zhen; Cause the heat and the refrigerant evaporation amount at each position that very big-difference is arranged; Even if distributor distributes liquid refrigerants very evenly, also can't avoid part heat exchanger tube refrigerant surface deficiency to cause mummification, influence the heat exchange effect.Moreover, during the evaporimeter location, if levelness has deviation also can cause part heat exchanger tube surface mummification phenomenon slightly.
Summary of the invention
The utility model technical issues that need to address have provided a kind of downward film evaporator, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
The utility model comprises: distributor; At described distributor positioned beneath one flow guiding disc.
Compared with prior art, the beneficial effect of the utility model is: because fountain and bottom are adopted in evaporimeter top is the mixing pattern of full-liquid type, and the heat exchange effect is remarkable; And it is simple in structure, practical.
Description of drawings
Fig. 1 is secondary compression refrigeration circulation process figure in the prior art;
Fig. 2 is a downward film evaporator structural representation among Fig. 1;
Fig. 3 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Visible by Fig. 3: the utility model comprises: distributor 6; At described distributor 6 positioned beneath one flow guiding disc 7.
The utility model increases by a flow guiding disc up and down at evaporimeter between the Guan Zhen, make evaporimeter be divided into two parts up and down, and Lower Half is filled enough refrigerants, and Guan Zhen is filled up, and promptly fountain is adopted on evaporimeter top, and the bottom is the mixing pattern of full-liquid type.
After under refrigerant sprays from the upper tube battle array in evaporimeter, the remaining liquid refrigerant is guided to the evaporimeter both sides through flow guiding disc, flow to the refrigerant supply source of evaporimeter bottom as the lower tube battle array again from both sides.
The utility model emphasis is that spraying technique is combined with full liquid technology, has strengthened the practicality and the economy of downward film evaporator more.
Claims (1)
1. a downward film evaporator comprises: distributor; It is characterized in that: at described distributor positioned beneath one flow guiding disc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204282831U CN202361704U (en) | 2011-11-02 | 2011-11-02 | Falling-film evaporator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204282831U CN202361704U (en) | 2011-11-02 | 2011-11-02 | Falling-film evaporator |
Publications (1)
Publication Number | Publication Date |
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CN202361704U true CN202361704U (en) | 2012-08-01 |
Family
ID=46572886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011204282831U Expired - Lifetime CN202361704U (en) | 2011-11-02 | 2011-11-02 | Falling-film evaporator |
Country Status (1)
Country | Link |
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CN (1) | CN202361704U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105135755A (en) * | 2015-08-17 | 2015-12-09 | 南京冷德节能科技有限公司 | Spraying type evaporator |
CN105387653A (en) * | 2015-12-21 | 2016-03-09 | 重庆美的通用制冷设备有限公司 | Evaporator and water chilling unit having same |
CN106288523A (en) * | 2015-06-29 | 2017-01-04 | 约克(无锡)空调冷冻设备有限公司 | Condensation and falling film evaporation mixed heat exchanger |
-
2011
- 2011-11-02 CN CN2011204282831U patent/CN202361704U/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106288523A (en) * | 2015-06-29 | 2017-01-04 | 约克(无锡)空调冷冻设备有限公司 | Condensation and falling film evaporation mixed heat exchanger |
US10288329B2 (en) | 2015-06-29 | 2019-05-14 | Johnson Controls Technology Company | Condensation and falling film evaporation hybrid heat exchanger |
CN106288523B (en) * | 2015-06-29 | 2019-09-13 | 约克(无锡)空调冷冻设备有限公司 | Condensation and falling film evaporation mixed heat exchanger |
CN105135755A (en) * | 2015-08-17 | 2015-12-09 | 南京冷德节能科技有限公司 | Spraying type evaporator |
CN105387653A (en) * | 2015-12-21 | 2016-03-09 | 重庆美的通用制冷设备有限公司 | Evaporator and water chilling unit having same |
CN105387653B (en) * | 2015-12-21 | 2018-02-06 | 重庆美的通用制冷设备有限公司 | Evaporator and there are its handpiece Water Chilling Units |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120801 |