CN2205946Y - Efficient horizontal liquid-filled evaporator - Google Patents
Efficient horizontal liquid-filled evaporator Download PDFInfo
- Publication number
- CN2205946Y CN2205946Y CN 94238141 CN94238141U CN2205946Y CN 2205946 Y CN2205946 Y CN 2205946Y CN 94238141 CN94238141 CN 94238141 CN 94238141 U CN94238141 U CN 94238141U CN 2205946 Y CN2205946 Y CN 2205946Y
- Authority
- CN
- China
- Prior art keywords
- heat
- housing
- transfer pipe
- liquid
- casing
- 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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Abstract
The utility model relates to an efficient horizontal liquid-filled evaporator, which is composed of a casing (1) and a heat-transfer pipe (2). The heat-transfer pipe is positioned in the casing (1). The utility model is characterized in that an even liquid board (7) is installed at the entrance (5) of the inner bottom of the casing, and a plurality of small holes are arranged on the even liquid board (7). The top of the casing is provided with three or more than three air return ports (4), and an overheating heat-transfer pipe (8) is arranged in a separated space (9) which is arranged in the casing and next to the side of the air return port (4). The utility model has the advantage of reasonable structure. The refrigerant can be boiled evenly along the casing in axial direction, and thus the heat transfer coefficient is big.
Description
The utility model belongs to shell-and-tube heat exchanger, particularly a kind of horizontal efficient flooded evaporator.
The structure of traditional horizontal flooded evaporator is seen shown in Figure 1, it is made up of housing 1 and heat-transfer pipe 2, at housing inner refrigerant gas liquid mixture 5 places that enter the mouth one fritter buffer board 3 is housed, this buffer board prevents that the vapour-liquid mixture from directly impacting heat-transfer pipe 2, liquid barrier 6 is equipped with at 4 places at case top return-air mouth, with barrier liquid, makes pure gas pass through return-air mouth stream, go out, the return-air mouth is provided with two.Its operation principle is that generation is seethed with excitement phase transformation and absorb heat the refrigerating medium (or another working medium that undergoes phase transition) of the pure liquid state that cooling (or condensation) is flowed in heat-transfer pipe in cold-producing medium or the working medium housing outside heat-transfer pipe.This evaporimeter can not guarantee the container inner refrigerant along housing shaft to boiling evenly because the structure of return-air mouth, liquid barrier and buffer board is very unreasonable, and the return-air mouth is with liquid easily.Therefore, its heat transfer coefficient is lower.
The purpose of this utility model is in order to solve the existing deficiency of above-mentioned background technology, to propose a kind of cold-producing medium that can make and evenly cause the high horizontal efficient flooded evaporator of heat transfer coefficient along housing shaft to boiling.
Goal of the invention of the present utility model can be realized by following scheme.A kind of horizontal efficient flooded evaporator is made up of housing and heat-transfer pipe, and heat-transfer pipe is positioned at housing, and its special character is: a liquid-distributing plate is arranged in the porch of described housing inner bottom part, many apertures are arranged on this liquid-distributing plate; In above-mentioned case top return-air mouth more than three or three is arranged; One row or the overheated heat-transfer pipe of two rows are arranged in the close separated space of return-air mouth one side in housing.
Said structure has following effect:
1. many return-air mouths and liquid-distributing plate can prevent that the cold-producing medium vapour-liquid mixture that enters in the housing from directly impacting heat-transfer pipe, make cold-producing medium along housing shaft to boiling evenly, and liquid height is close.
2. many return-air mouths and one traditional or two return-air mouths comparisons, the flow direction of cold-producing medium gas in separated space is more axial perpendicular to evaporator shell, thereby the flow velocity of gas is slow, and gas-liquid is separated easily.
3. replace traditional liquid barrier with overheated heat-transfer pipe, can keep off liquid, gas is flowed be evenly distributed, again can with the gas heat exchange, guarantee that fully pure gas leads to the return-air mouth, and reduce resistance.
In sum, just because of the effect that the utlity model has three aspects of art, thereby the heat transfer coefficient of this evaporimeter is higher than conventional evaporator heat transfer coefficient 10%～30% under the situation of identical heat-transfer pipe.Example adopts a kind of porous surface copper pipe heat-transfer pipe, and the conventional evaporator heat transfer coefficient is 2984W/m
2K and this high-efficiency evaporator heat transfer coefficient is 3521W/m
2K.
Specifically describe structure of the present utility model below in conjunction with embodiment shown in the drawings.
Fig. 1 is the structural representation of traditional horizontal full-liquid type evaporation.
Fig. 2 is a structural representation of the present utility model.
With reference to Fig. 2, housing 1 is horizontal positioned, heat-transfer pipe 2 along the level of housing 1 in being installed in housing 1, feed refrigerating medium in the heat-transfer pipe 2, feed cold-producing medium vapour-liquid mixture in the housing 1, the inlet 5 of housing 1 is positioned at the below of housing, four return-air mouths 4 are arranged at the top of housing, cold-producing medium vapour-liquid mixture is in the 5 inflow housings 1 that enter the mouth, and after the evaporation, pure gas is flowed out by four return-air mouths 4 in housing 1.In housing, a liquid-distributing plate 7 is housed near inlet 5 places, this liquid-distributing plate 7 along housing shaft to length greater than at a distance of the distance between the two return-air mouths 4 farthest, have many apertures on the liquid-distributing plate 7, so that cold-producing medium passes through equably, near the overheated heat-transfer pipe 8 of a row is housed in the separated space 9 of return-air mouth 4 one sides, this overheated heat-transfer pipe 8 communicates with heat-transfer pipe 2 in housing.
Claims (2)
1, a kind of horizontal efficient flooded evaporator is made up of housing and heat-transfer pipe, and heat-transfer pipe is positioned at housing, it is characterized in that: (1) has a liquid-distributing plate in the porch of described housing inner bottom part, many apertures are arranged on this liquid-distributing plate; (2) in described case top return-air mouth more than three or three is arranged; (3) row or the overheated heat-transfer pipe of two rows are arranged in the close separated space of return-air mouth one side in housing.
2, according to the described horizontal efficient flooded evaporator of claim 1, it is characterized in that: described liquid-distributing plate along housing shaft to length greater than at a distance of the distance between the two return-air mouths farthest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238141 CN2205946Y (en) | 1994-08-31 | 1994-08-31 | Efficient horizontal liquid-filled evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238141 CN2205946Y (en) | 1994-08-31 | 1994-08-31 | Efficient horizontal liquid-filled evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2205946Y true CN2205946Y (en) | 1995-08-23 |
Family
ID=33845634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94238141 Expired - Fee Related CN2205946Y (en) | 1994-08-31 | 1994-08-31 | Efficient horizontal liquid-filled evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2205946Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022866A (en) * | 2011-01-07 | 2011-04-20 | 福建雪人股份有限公司 | Round liquid inlet pipe of flooded evaporator |
| CN102166420A (en) * | 2011-03-15 | 2011-08-31 | 中国科学院广州能源研究所 | Combined evaporator |
| CN102679633A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Grid evaporator |
| CN106662381A (en) * | 2014-07-01 | 2017-05-10 | 大金工业株式会社 | Falling film evaporator |
| CN108626909A (en) * | 2017-03-15 | 2018-10-09 | 云南道精制冷科技有限责任公司 | Horizontal plate changes mixed flow evaporator |
-
1994
- 1994-08-31 CN CN 94238141 patent/CN2205946Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022866A (en) * | 2011-01-07 | 2011-04-20 | 福建雪人股份有限公司 | Round liquid inlet pipe of flooded evaporator |
| CN102022866B (en) * | 2011-01-07 | 2012-10-03 | 福建雪人股份有限公司 | Round liquid inlet pipe of flooded evaporator |
| CN102166420A (en) * | 2011-03-15 | 2011-08-31 | 中国科学院广州能源研究所 | Combined evaporator |
| CN102679633A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Grid evaporator |
| CN106662381A (en) * | 2014-07-01 | 2017-05-10 | 大金工业株式会社 | Falling film evaporator |
| CN108626909A (en) * | 2017-03-15 | 2018-10-09 | 云南道精制冷科技有限责任公司 | Horizontal plate changes mixed flow evaporator |
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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 |