CN104307192B - Uniform overflow-type liquid distribution trough - Google Patents
Uniform overflow-type liquid distribution trough Download PDFInfo
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- CN104307192B CN104307192B CN201410532698.1A CN201410532698A CN104307192B CN 104307192 B CN104307192 B CN 104307192B CN 201410532698 A CN201410532698 A CN 201410532698A CN 104307192 B CN104307192 B CN 104307192B
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- overflow
- shower
- tooth
- branch pipe
- distribution trough
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of liquid distribution device, specifically to a kind of for making liquid be evenly distributed on the uniform overflow-type liquid distribution trough on horizontal heat exchange tube, comprising: flange, feed pipe, horizontal branch pipe, shower, folded plate type overflow launder, connecting channel and cloth liquid tooth; Described flange is arranged at charging aperture, described feed pipe one end and Flange joint, and the other end is connected with horizontal branch pipe; Shower docks with horizontal branch pipe Bu Shi center, it is to avoid the generation of hydrops phenomenon in shower; Use shower that liquid in overflow launder is increasesd slowly, it is simple to stable during liquid flooding, fluctuate little.
Description
Technical field
The present invention relates to a kind of liquid distribution device, specifically to a kind of for making liquid be evenly distributed on the uniform overflow-type liquid distribution trough on horizontal heat exchange tube.
Background technology
Falling Film Evaporator of Horizontal Tube has heat transfer efficiency height; Have a narrow range of temperature, be particularly well-suited to thermosensitive solution evaporation; Equipment is simple, and volume is little; After startup, it is not necessary to live steam; Power consumption is low, low cost and other advantages, is widely used in now the industries such as food, medicine, chemical industry, sewage disposal, desalinization. One of key equipment of Falling Film Evaporator of Horizontal Tube is liquid distribution trough (i.e. liquid distributor), and solution, through liquid distribution trough, is evenly distributed on horizontal heat exchange tube, forms the liquid film of thin layer, heated evaporation. Falling Film Evaporator of Horizontal Tube heat exchange efficiency is high, and key is that liquid distribution trough can make solution be uniformly distributed on each horizontal tube length direction, and is upwardly formed uniform liquid film in horizontal tube week. The uniformity of solution distribution and the quality of film forming are the standards judging a liquid distribution trough performance quality.
At present, widely used liquid distribution trough mainly has tubular type, board-like, slotted disc type, fountain etc. Various liquid liquid distributors are respectively arranged with pluses and minuses. Tubular type liquid distributor simple in construction, but anti-stifled ability, it is easy to cause obstruction, make liquid film skewness; Board-like liquid distributor, flow rate of liquid is fast, and cloth liquid point is uneven, affects cloth liquid effect; Slotted disc type liquid distributor, processes amount of solution big, and anti-stifled ability is strong, but bias current and sheet stream easily occurs, affects cloth liquid uniformity; Fountain liquid distributor, spray face is circle, sprinkler spacing and highly bad grasp, it is easy to cause sprinkling uneven.
Summary of the invention
For prior art Problems existing, the invention aims to provide a kind of uniformly overflow-type liquid distribution trough, it has the advantages such as simple in construction, easy to process, elastic operation space big, cloth liquid point is many, liquid distribution is uniform.
The technical solution adopted for the present invention to solve the technical problems is uniform overflow-type liquid distribution trough, distributor is installed in the top of Falling Film Evaporator of Horizontal Tube heat exchanger tube, comprising: flange, feed pipe, horizontal branch pipe, shower, folded plate type overflow launder, connecting channel and cloth liquid tooth; Described flange is arranged at charging aperture, described feed pipe one end and Flange joint, and the other end is connected with horizontal branch pipe; Described horizontal branch pipe is connected with some showers, and described shower lower central line is provided with some nozzles; Described shower is connected with folded plate type overflow launder, and folded plate type overflow launder is made up of several independent overflow conduits and two connecting channel, and above each overflow conduit, two ends are provided with overflow tooth, is connected with cloth liquid tooth below overflow conduit; Folded plate type overflow launder horizontal direction two ends are provided with connecting channel, and each overflow conduit slides in connecting channel, to facilitate installation to regulate.
Described overflow channel structure is identical, and for triangular structure, the distance between each overflow conduit is equal.
Described overflow conduit groove direction is identical with nozzle distribution arrangement.
Described cloth liquid tooth number is identical with overflow conduit number, and cloth liquid tooth is positioned at below overflow conduit; The tooth length of cloth liquid tooth differs.
Described shower is set in parallel on horizontal branch pipe, and shower centrage is vertical with horizontal branch pipe centrage horizontal direction.
The length of described cloth liquid tooth is different.
It is an advantage of the current invention that:
1, shower docks with horizontal branch pipe Bu Shi center, it is to avoid the generation of hydrops phenomenon in shower;
2, use shower that liquid in overflow launder is increasesd slowly, it is simple to stable during liquid flooding, fluctuate little;
3, use folded plate type overflow launder, overcome the uneven cloth liquid caused of sprinkling uneven.
4, connecting channel is used to make the liquid capacity in each overflow conduit identical, it is to avoid the asynchronism of overflow and inhomogeneities.
5, each overflow conduit can slide in connecting channel, it is simple to regulate the spacing of overflow conduit according to different tube pitch, also allows for adjusting cloth liquid tooth alignment heat exchanger tube center, simultaneously works as the effect connecting each overflow conduit and fixing folded plate type overflow launder.
6. have only to ensure the levelness of connecting channel, it is possible to ensure the levelness of folded plate type overflow launder, reduce the requirement of installation accuracy.
By regulating folded plate type overflow launder conduit spacing, it is possible to the convenient vaporizer being applicable to different tube pitch, easy to operate, elastic space is big; Install cloth liquid tooth below conduit additional, play rectified action, add number and the uniformity of cloth liquid point simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is A A view in Fig. 1;
Fig. 3 is B B view in Fig. 1;
Fig. 4 is C-C view in Fig. 3;
Fig. 5 is D-D view in Fig. 3;
In figure: 1, flange, 2, feed pipe, 3, horizontal branch pipe, 4, shower, 5, nozzle, 6, folded plate type overflow launder, 7, cloth liquid tooth, 8, horizontal heat exchange tube, 9, overflow tooth, 10, connecting channel, 11, overflow conduit.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, technical scheme is described in detail.
Such as Fig. 1, flange 1 is arranged at porch, solution passes through feed pipe 2, entering horizontal branch pipe 3, horizontal branch pipe 3 is connected with multiple showers 4, and shower 4 is set in parallel on horizontal branch pipe 3, shower 4 centrage is vertical with horizontal branch pipe 3 centrage horizontal direction, the number of horizontal branch pipe 3 and shower 4 determines according to the length of heat exchanger tube in vaporizer 8, the distribution of nozzle 5 and number, according to shower 4 number and length determine.When solution is sprayed onto on folded plate type overflow launder 6 by nozzle 5, due to overflow conduit 11 have certain recessed deeply, solution accumulates in overflow conduit 11, and by flowing in each overflow conduit 11 with the connecting channel 10 of overflow conduit 11 UNICOM, make the amount of solution that each overflow conduit inner product is deposited equal, when solution is stored to certain altitude in overflow conduit 11 inner product, solution is by the overflow tooth 9 at two ends place above each overflow conduit 11, uniform overflow goes out overflow conduit 11, solution stream is to the cloth liquid tooth 7 below overflow conduit 11, make solution form drop at each crown place to drip, uniformly dripping pours on every heat exchanger tube 8, form uniform thin film, the conduit spacing of each overflow conduit 11 determines (0mm~10mm) according to the spacing of heat exchanger tube 8, the cross section angle of overflow conduit 11, at 30 °~120 °, regulates according to heat exchanger tube 8 spacing, when heat exchanger tube 8 spacing is big, can adopt the overflow conduit that cross section angle is big, meanwhile, and the corresponding conduit spacing reducing overflow conduit 11. cloth liquid tooth tooth depth determines according to the distance of overflow conduit 11 with heat exchanger tube 8, and it is highly 10mm~30mm.
Claims (6)
1. uniform overflow-type liquid distribution trough, distributor is installed in the top of Falling Film Evaporator of Horizontal Tube heat exchanger tube, comprising: flange, feed pipe, horizontal branch pipe, shower, folded plate type overflow launder, connecting channel and cloth liquid tooth; Described flange is arranged at charging aperture, described feed pipe one end and Flange joint, and the other end is connected with horizontal branch pipe; Described horizontal branch pipe is connected with some showers, and described shower lower central line is provided with some nozzles; Described shower is connected with folded plate type overflow launder, and folded plate type overflow launder is made up of several independent overflow conduits and two connecting channel, and above each overflow conduit, two ends are provided with overflow tooth, is connected with cloth liquid tooth below overflow conduit; Folded plate type overflow launder horizontal direction two ends are provided with connecting channel, and each overflow conduit slides in connecting channel, to facilitate installation to regulate.
2. uniform overflow-type liquid distribution trough according to claim 1, it is characterised in that: described overflow channel structure is identical, and for triangular structure, the distance between each overflow conduit is equal.
3. uniform overflow-type liquid distribution trough according to claim 1, it is characterised in that: described overflow conduit groove direction is identical with nozzle distribution arrangement.
4. uniform overflow-type liquid distribution trough according to claim 1, it is characterised in that: described cloth liquid tooth number is identical with overflow conduit number, and cloth liquid tooth is positioned at below overflow conduit; The tooth length of cloth liquid tooth differs.
5. uniform overflow-type liquid distribution trough according to claim 1, it is characterised in that: described shower is set in parallel on horizontal branch pipe, and shower centrage is vertical with horizontal branch pipe centrage horizontal direction.
6. uniform overflow-type liquid distribution trough according to claim 1, it is characterised in that: the length of described cloth liquid tooth is different.
Priority Applications (1)
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CN201410532698.1A CN104307192B (en) | 2014-10-11 | 2014-10-11 | Uniform overflow-type liquid distribution trough |
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CN201410532698.1A CN104307192B (en) | 2014-10-11 | 2014-10-11 | Uniform overflow-type liquid distribution trough |
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CN104307192A CN104307192A (en) | 2015-01-28 |
CN104307192B true CN104307192B (en) | 2016-06-15 |
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CN201410532698.1A Expired - Fee Related CN104307192B (en) | 2014-10-11 | 2014-10-11 | Uniform overflow-type liquid distribution trough |
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104815448A (en) * | 2015-03-03 | 2015-08-05 | 湖北东方化工有限公司 | Flash evaporator for gasifying liquid phase substances |
CN106311529B (en) * | 2015-06-30 | 2018-11-27 | 沈阳芯源微电子设备有限公司 | A kind of liquid uniformly sprays processing system and its processing method |
CN106673098A (en) * | 2016-11-02 | 2017-05-17 | 天津大学 | Mounting method for uniform liquid distribution structure of transverse tube falling film evaporator |
CN106865662A (en) * | 2017-03-21 | 2017-06-20 | 中国恩菲工程技术有限公司 | Evaporated and purified device |
CN107261536A (en) * | 2017-07-26 | 2017-10-20 | 江苏迈克化工机械有限公司 | A kind of liquid distribution trough of falling film evaporator |
JP2021536559A (en) * | 2018-08-14 | 2021-12-27 | ヨーク (ウーシー) エアー・コンディショニング・アンド・リフリジェレーション・カンパニー,リミテッド | Flowing liquid film type evaporator |
CN110270118A (en) * | 2019-07-12 | 2019-09-24 | 东华大学 | A kind of horizontal falling liquid film liquid distributor |
CN110665242B (en) * | 2019-10-18 | 2022-07-01 | 临沂金朗化工有限公司 | Combined type methanol evaporator |
CN111359240B (en) * | 2020-03-30 | 2021-08-20 | 山东凯斯达机械制造有限公司 | Tubular falling film evaporator, concentration device and using method and process of concentration device |
CN112028156B (en) * | 2020-09-28 | 2024-04-26 | 江苏固环环境科技有限公司 | Overflow weir type distributing device for thin layer drying equipment |
Citations (3)
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CN102000437A (en) * | 2010-09-03 | 2011-04-06 | 广东工业大学 | Falling film evaporator with gas-liquid separating and membrane-distributing functions |
CN203379622U (en) * | 2013-06-19 | 2014-01-08 | 上海神农机械有限公司 | Three-overflow distributor applied to falling-film evaporator |
CN204170439U (en) * | 2014-10-11 | 2015-02-25 | 沈阳航空航天大学 | A kind of evenly overflow-type liquid distribution trough |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002062063A (en) * | 2000-08-23 | 2002-02-28 | Sumitomo Heavy Ind Ltd | Liquid dispersing sheet of distributor in falling film type heat exchanger |
US8241459B2 (en) * | 2006-09-21 | 2012-08-14 | Fina Technology, Inc. | Polymer melt distributor header design |
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2014
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102000437A (en) * | 2010-09-03 | 2011-04-06 | 广东工业大学 | Falling film evaporator with gas-liquid separating and membrane-distributing functions |
CN203379622U (en) * | 2013-06-19 | 2014-01-08 | 上海神农机械有限公司 | Three-overflow distributor applied to falling-film evaporator |
CN204170439U (en) * | 2014-10-11 | 2015-02-25 | 沈阳航空航天大学 | A kind of evenly overflow-type liquid distribution trough |
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CN104307192A (en) | 2015-01-28 |
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