CN104014142B - Efficient liquid distributor for falling-film evaporator - Google Patents
Efficient liquid distributor for falling-film evaporator Download PDFInfo
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- CN104014142B CN104014142B CN201410287179.3A CN201410287179A CN104014142B CN 104014142 B CN104014142 B CN 104014142B CN 201410287179 A CN201410287179 A CN 201410287179A CN 104014142 B CN104014142 B CN 104014142B
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- liquid
- liquid distribution
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- film evaporator
- falling
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Abstract
The invention relates to an efficient liquid distributor for a falling-film evaporator. The efficient liquid distributor is characterized in that a first-stage liquid distribution trough and a second-stage liquid distribution trough are formed up and down and are fixed with a tube plate of the falling-film evaporator by virtue of distance tubes, pull rods and nuts, a base plate of the first-stage liquid distribution trough is a first-stage liquid distribution plate in which a plurality of liquid distribution holes are formed, second-stage liquid distribution pipes matched with a heat exchange tube are fixed on a base plate of the second-stage liquid distribution trough, liquid distribution holes are uniformly formed in the side walls of the second-stage liquid distribution pipes, and film pulling pipes are fixed in the second-stage liquid distribution pipes through cover plates. According to the efficient liquid distributor, materials are uniformly distributed at the section of the whole falling-film evaporator by virtue of the first-stage liquid distribution trough and the second-stage liquid distribution trough, and uniformly-distributed liquid is pulled into uniform films in the heat exchange tube by virtue of the film pulling pipes to flow downwards, so that the efficient liquid distributor has distinct advantages in uniform liquid distribution and film pulling aspects, and the efficiency of the falling-film evaporator is greatly improved.
Description
Technical field
The invention belongs to chemical machinery technical field, more particularly, to a kind of efficient liquid distributor of falling film evaporator.
Background technology
Falling film evaporator is widely used in the list in the industries such as medicine, food, chemical industry, light industry with regard to water or organic solvent solution
Effect or multiple-effect evaporation concentrate, and are particularly suited for the evaporation of heat sensitive material.Wherein determine the key technology of falling film evaporator efficiency
It is the efficiency of falling film evaporator liquid distributor, therefore the research for falling film evaporator liquid distributor has higher value.
Material uniformly can be distributed among each heat exchanger tube for efficient liquid distributor, and in heat exchange inside pipe wall film forming
Shape flows downward, the present invention material be uniformly distributed and membrane effect in terms of advantage more prominent.
Content of the invention
The technical problem to be solved is: the liquid existing for liquid distributor device in existing falling film evaporator divides
Cloth is uneven and membrane effect is undesirable, there is provided one kind is evenly distributed, membrane effect preferably efficient liquid distributor, and more existing
Some liquid distributors have advantage easy to process, to be easily installed.
For solving above-mentioned technical problem, the technical scheme is that
A kind of falling film evaporator with efficient liquid distributor it is characterised in that: I and II cloth liquid bath is arranged up and down, using spacing
Two-stage cloth liquid bath and falling film evaporator tube sheet are fixed by pipe, pull bar, nut, and one-level cloth liquid bath base plate is to have some liquid distributing holes
One-level liquid distribution plate, two grades of cloth liquid bath base plates are fixed with two grades of liquid distributors with heat exchanger tube cooperation, equal in two grades of liquid distributor side walls
Even have liquid distributing hole, membrane Gutron is crossed cover plate and is fixed in two grades of liquid distributors.
Advantages of the present invention and good effect are:
Material is uniformly distributed in whole falling film evaporator section using one-level cloth liquid bath, two grades of cloth liquid baths by the present invention, profit
With membrane pipe again by equally distributed liquid heat exchange inside pipe wall pull into membranaceous flow downward, therefore the present invention is equal in falling film evaporator
Even cloth liquid and membrane aspect have the advantages that more to project.
Brief description
Fig. 1 is a kind of schematic diagram with efficient liquid distributor for falling film evaporator.
Reference:
1st, short cylinder, 2, one-level liquid distribution plate, 3, short cylinder, 4, two grades of liquid distributors, 5, fixed plate, 6, membrane pipe, 7, pull bar,
8th, nut, 9, distance sink tube, 10, cover plate.
Specific embodiment
A kind of falling film evaporator as shown in Figure 1 with efficient liquid distributor it is characterised in that: the upper and lower cloth of I and II cloth liquid bath
Put, using distance sink tube, pull bar, nut, two-stage cloth liquid bath and falling film evaporator tube sheet are fixed, one-level cloth liquid bath base plate is to have
The one-level liquid distribution plate of some liquid distributing holes, two grades of cloth liquid bath base plates is fixed with two grades of liquid distributors with heat exchanger tube cooperation, at two grades
Liquid distributor side wall uniformly has liquid distributing hole, and membrane Gutron is crossed cover plate and is fixed in two grades of liquid distributors.
The efficient liquid distributor of this falling film evaporator, short cylinder (piece number 1) adopts seal weld with one-level liquid distribution plate (piece number 2)
Mode connects, and one-level liquid distribution plate uniformly bores some apertures, the flow of the diameter of aperture, quantity and material and the thickness of liquid layer
Related.Material enters at the beginning of the one-level cloth liquid bath being made up of short cylinder (piece number 1) and one-level liquid distribution plate (piece number 2), feed liquid along feed pipe
Step distribution.
Short cylinder (piece number 3) is connected using seal weld with two grades of liquid distributors (piece number 4) and fixed plate (piece number 5), jointly
Constitute two grades of cloth liquid baths, wherein two grades liquid distributors (piece number 4) are using the size same or like with heat exchanger tube internal-and external diameter, and arrange
Position is just to exchange heat pipe, uniformly opens some apertures on its tube wall.Feed liquid enters two grades of distributions after the distribution of one-level cloth liquid bath
In groove, then the inwall uniformly flowing to two grades of liquid distributors (piece number 4) through the aperture on two grades of liquid distributors (piece number 4).
Membrane pipe (piece number 6) is connected with two grades of liquid distributors (piece number 4) by cover plate (piece number 10), membrane pipe (piece number 6)
External diameter is slightly less than the internal diameter of two grades of liquid distributors, and membrane pipe is corresponded with heat exchanger tube, and is inserted into heat exchanger tube, with heat exchange inside pipe wall
Form gap, material middle homogeneous film formation in this gap.
This liquid distributor adopts pull bar (piece number 7), distance sink tube (piece number 9), nut (piece number 8) by one-level cloth liquid bath, two grades of cloth
The tube sheet of liquid bath and falling film evaporator is fixed and is positioned.
It is emphasized that above-mentioned elaboration illustrate only the primary structure of the present invention it is noted that for this area
Technical staff without departing from the inventive concept of the premise, some deformation of making and improve the protection model broadly falling into the present invention
Enclose.
Claims (1)
1. the efficient liquid distributor of a kind of falling film evaporator, I and II cloth liquid bath is arranged up and down, and using distance sink tube, pull bar, nut will
Two-stage cloth liquid bath and falling film evaporator tube sheet are fixed, and one-level cloth liquid bath base plate is the one-level liquid distribution plate having some liquid distributing holes, its
It is characterised by:
1) short cylinder (3) is connected using seal weld with two grades of liquid distributors (4) and fixed plate (5), collectively forms two grades of cloth liquid baths,
Wherein two grades liquid distributors (4) are using the size same or like with heat exchanger tube internal-and external diameter, and position is just to exchange heat pipe,
Some apertures are uniformly opened on its tube wall；
2) membrane pipe (6) is connected with two grades of liquid distributors (4) by cover plate (10), and the external diameter of membrane pipe (6) is slightly less than two grades of cloth liquid
The internal diameter of pipe, membrane pipe is corresponded with heat exchanger tube, and is inserted into heat exchanger tube, forms gap with heat exchange inside pipe wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287179.3A CN104014142B (en) | 2014-06-24 | 2014-06-24 | Efficient liquid distributor for falling-film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287179.3A CN104014142B (en) | 2014-06-24 | 2014-06-24 | Efficient liquid distributor for falling-film evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104014142A CN104014142A (en) | 2014-09-03 |
| CN104014142B true CN104014142B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410287179.3A Active CN104014142B (en) | 2014-06-24 | 2014-06-24 | Efficient liquid distributor for falling-film evaporator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104014142B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587803B (en) * | 2015-01-13 | 2017-02-22 | 重庆大学 | Liquid distribution disturbance device for plate-type film falling devices |
| CN106377911B (en) * | 2016-09-23 | 2019-04-16 | 聊城煤杉新材料科技有限公司 | A kind of Vertical Thermosyphon Reboiler |
| CN109589626B (en) * | 2018-12-21 | 2020-12-15 | 江南大学 | Anti-scaling falling film evaporator |
| CN111701261A (en) * | 2020-06-22 | 2020-09-25 | 天津科技大学 | Gas and liquid guiding and distributing device of falling film evaporator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3419170C1 (en) * | 1984-05-23 | 1985-09-19 | Fried. Krupp Gmbh, 4300 Essen | Feed device for an apparatus for uniform liquid distribution in falling film evaporators |
| WO2008010237A1 (en) * | 2006-07-19 | 2008-01-24 | Spray Engineering Devices Limited | Improved distributor for falling film evaporator |
| CN201387271Y (en) * | 2009-01-19 | 2010-01-20 | 北京广厦环能科技有限公司 | Liquid distributing device of falling-film evaporator |
| CN101898045A (en) * | 2010-06-02 | 2010-12-01 | 苏州桥立环境科技有限公司 | Feed liquid distribution film forming device of falling film evaporator |
| CN201949664U (en) * | 2010-12-22 | 2011-08-31 | 山东省鲁洲食品集团有限公司 | Distributor of falling film evaporator |
| CN201949666U (en) * | 2011-01-27 | 2011-08-31 | 安徽省化工设计院 | Liquid distributer of falling film evaporator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2741640Y (en) * | 2004-11-11 | 2005-11-23 | 河北科技大学 | Liquid distributor for film falling tower |
| CN202802799U (en) * | 2012-05-11 | 2013-03-20 | 合肥宁垣工程技术有限责任公司 | Film falling liquid distributor |
-
2014
- 2014-06-24 CN CN201410287179.3A patent/CN104014142B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3419170C1 (en) * | 1984-05-23 | 1985-09-19 | Fried. Krupp Gmbh, 4300 Essen | Feed device for an apparatus for uniform liquid distribution in falling film evaporators |
| WO2008010237A1 (en) * | 2006-07-19 | 2008-01-24 | Spray Engineering Devices Limited | Improved distributor for falling film evaporator |
| CN201387271Y (en) * | 2009-01-19 | 2010-01-20 | 北京广厦环能科技有限公司 | Liquid distributing device of falling-film evaporator |
| CN101898045A (en) * | 2010-06-02 | 2010-12-01 | 苏州桥立环境科技有限公司 | Feed liquid distribution film forming device of falling film evaporator |
| CN201949664U (en) * | 2010-12-22 | 2011-08-31 | 山东省鲁洲食品集团有限公司 | Distributor of falling film evaporator |
| CN201949666U (en) * | 2011-01-27 | 2011-08-31 | 安徽省化工设计院 | Liquid distributer of falling film evaporator |
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| Publication number | Publication date |
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| CN104014142A (en) | 2014-09-03 |
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Effective date of registration: 20170619 Address after: 046000 Shanxi Changzhi suburb West White Rabbit Village Huo Jia Village Patentee after: Changzhi Huo Jia Industry Co., Ltd. Address before: 300384 the Binhai New Area of Tianjin Huayuan Industrial Park Haitai Information Plaza D block, room 1310 Patentee before: Tianjin Pulai Chemical Technology Co., Ltd. |