CN104014142A - Efficient liquid distributor for falling-film evaporator - Google Patents
Efficient liquid distributor for falling-film evaporator Download PDFInfo
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- CN104014142A CN104014142A CN201410287179.3A CN201410287179A CN104014142A CN 104014142 A CN104014142 A CN 104014142A CN 201410287179 A CN201410287179 A CN 201410287179A CN 104014142 A CN104014142 A CN 104014142A
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- liquid distribution
- film evaporator
- liquid
- liquid distributor
- distributor
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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, relate in particular to the efficient liquid distributor of a kind of falling film evaporator.
Background technology
Falling film evaporator is widely used in single-action or the multiple-effect evaporation about water or organic solvent solution in the industries such as medicine, food, chemical industry, light industry and concentrates, and is particularly useful for the evaporation of heat sensitive material.Wherein determine that the key technology of falling film evaporator efficiency is the efficiency of falling film evaporator liquid distributor, therefore there is higher value for the research of falling film evaporator liquid distributor.
Efficiently liquid distributor can be distributed in material among each heat exchanger tube uniformly, and at heat exchanger tube inwall, becomes membranaceous and flow downward, the present invention material be uniformly distributed and membrane effect aspect advantage comparatively outstanding.
Summary of the invention
Technical problem to be solved by this invention is: the liquid distribution that exists for liquid distributor device in existing falling film evaporator is inhomogeneous and membrane effect is undesirable, the efficient liquid distributor of provide a kind of and be evenly distributed, membrane is satisfactory for result, and more existing liquid distributor has the processing of being easy to, be convenient to the advantage of installing.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The efficient liquid distributor of a kind of falling film evaporator, it is characterized in that: I and II cloth liquid bath is arranged up and down, utilize distance sink tube, pull bar, nut that two-stage cloth liquid bath and falling film evaporator tube sheet are fixed, one-level cloth liquid bath base plate is the one-level liquid distribution plate that has some liquid distributing holes, on secondary cloth liquid bath base plate, be fixed with the secondary liquid distributor coordinating with heat exchanger tube, at secondary liquid distributor sidewall, evenly have liquid distributing hole, membrane pipe is fixed in secondary liquid distributor by cover plate.
Advantage of the present invention and good effect are:
The present invention utilizes one-level cloth liquid bath, secondary cloth liquid bath that material is uniformly distributed in to whole falling film evaporator cross section, utilize membrane pipe more equally distributed liquid to be pulled into membranaceous flowing downward at heat exchanger tube inwall, thus the present invention aspect the even cloth liquid of falling film evaporator and membrane, have advantages of comparatively outstanding.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of efficient liquid distributor for a kind of falling film evaporator.
Reference numeral:
1, short cylinder I, 2, one-level liquid distribution plate, 3, short cylinder II, 4, secondary liquid distributor, 5, fixed head, 6, membrane pipe, 7, pull bar, 8, nut, 9, distance sink tube, 10, cover plate.
The specific embodiment
The efficient liquid distributor of a kind of falling film evaporator as shown in Figure 1, it is characterized in that: I and II cloth liquid bath is arranged up and down, utilize distance sink tube, pull bar, nut that two-stage cloth liquid bath and falling film evaporator tube sheet are fixed, one-level cloth liquid bath base plate is the one-level liquid distribution plate that has some liquid distributing holes, on secondary cloth liquid bath base plate, be fixed with the secondary liquid distributor coordinating with heat exchanger tube, at secondary liquid distributor sidewall, evenly have liquid distributing hole, membrane pipe is fixed in secondary liquid distributor by cover plate.
The efficient liquid distributor of this falling film evaporator, short cylinder I (piece number 1) adopts the mode of seal weld to be connected with one-level liquid distribution plate (piece number 2), on one-level liquid distribution plate, evenly bore some apertures, the diameter of aperture, quantity are relevant to the flow of material and the thickness of liquid layer.Material enters the one-level cloth liquid bath consisting of short cylinder I (piece number 1) and one-level liquid distribution plate (piece number 2) along feed pipe, feed liquid tentatively distributes.
Short cylinder II (piece number 3) adopts seal weld to be connected with secondary liquid distributor (piece number 4) and fixed head (piece number 5), common formation secondary cloth liquid bath, wherein secondary liquid distributor (piece number 4) adopts the size identical or close with heat exchanger tube internal-and external diameter, and position is over against heat exchanger tube, on its tube wall, evenly open some apertures.Feed liquid enters in secondary distributing slot after one-level cloth liquid bath distributes, then the aperture on secondary liquid distributor (piece number 4) flows to the inwall of secondary liquid distributor (piece number 4) uniformly.
Membrane pipe (piece number 6) is connected with secondary liquid distributor (piece number 4) by cover plate (piece number 10), the external diameter of membrane pipe (piece number 6) is slightly less than the internal diameter of secondary liquid distributor, membrane pipe is corresponding one by one with heat exchanger tube, and interior insertion heat exchanger tube, form gap with heat exchanger tube inwall, material is even film forming in gap during this time.
This liquid distributor adopts pull bar (piece number 7), distance sink tube (piece number 9), nut (piece number 8) that the tube sheet of one-level cloth liquid bath, secondary cloth liquid bath and falling film evaporator is fixed and located.
It is emphasized that above-mentioned elaboration has only shown primary structure of the present invention, it should be pointed out that for those skilled in the art without departing from the inventive concept of the premise, some distortion of making and improvement all belong to protection scope of the present invention.
Claims (1)
1. the efficient liquid distributor of falling film evaporator, it is characterized in that: I and II cloth liquid bath is arranged up and down, utilize distance sink tube, pull bar, nut that two-stage cloth liquid bath and falling film evaporator tube sheet are fixed, one-level cloth liquid bath base plate is the one-level liquid distribution plate that has some liquid distributing holes, on secondary cloth liquid bath base plate, be fixed with the secondary liquid distributor coordinating with heat exchanger tube, at secondary liquid distributor sidewall, evenly have liquid distributing hole, membrane pipe is fixed in secondary liquid distributor by cover plate.
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 true CN104014142A (en) | 2014-09-03 |
| CN104014142B CN104014142B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410287179.3A Active CN104014142B (en) | 2014-06-24 | 2014-06-24 | Efficient liquid distributor for falling-film evaporator |
Country Status (1)
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| CN (1) | CN104014142B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587803A (en) * | 2015-01-13 | 2015-05-06 | 重庆大学 | Liquid distribution disturbance device for plate-type film falling devices |
| CN106377911A (en) * | 2016-09-23 | 2017-02-08 | 聊城煤杉新材料科技有限公司 | Novel vertical type thermo-siphon reboiler |
| CN109589626A (en) * | 2018-12-21 | 2019-04-09 | 江南大学 | Good antiscale property 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 |
| CN112933627A (en) * | 2021-04-06 | 2021-06-11 | 中国科学院广州能源研究所 | MVR falling film evaporator |
Citations (8)
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| 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 |
| CN2741640Y (en) * | 2004-11-11 | 2005-11-23 | 河北科技大学 | Liquid distributor for film falling tower |
| 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 |
| CN201949666U (en) * | 2011-01-27 | 2011-08-31 | 安徽省化工设计院 | Liquid distributer 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 |
| 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 |
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2014
- 2014-06-24 CN CN201410287179.3A patent/CN104014142B/en active Active
Patent Citations (8)
| 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 |
| CN2741640Y (en) * | 2004-11-11 | 2005-11-23 | 河北科技大学 | Liquid distributor for film falling tower |
| 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 |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587803A (en) * | 2015-01-13 | 2015-05-06 | 重庆大学 | Liquid distribution disturbance device for plate-type film falling devices |
| CN106377911A (en) * | 2016-09-23 | 2017-02-08 | 聊城煤杉新材料科技有限公司 | Novel vertical type thermo-siphon reboiler |
| 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 |
| CN109589626A (en) * | 2018-12-21 | 2019-04-09 | 江南大学 | Good antiscale property 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 |
| CN112933627A (en) * | 2021-04-06 | 2021-06-11 | 中国科学院广州能源研究所 | MVR falling film evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104014142B (en) | 2017-01-18 |
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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. |
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