CN2488572Y - Filming device for tubular evaporator - Google Patents
Filming device for tubular evaporator Download PDFInfo
- Publication number
- CN2488572Y CN2488572Y CN 01244980 CN01244980U CN2488572Y CN 2488572 Y CN2488572 Y CN 2488572Y CN 01244980 CN01244980 CN 01244980 CN 01244980 U CN01244980 U CN 01244980U CN 2488572 Y CN2488572 Y CN 2488572Y
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- heat exchanger
- exchanger tube
- tube
- tube sheet
- sieve plate
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Abstract
The utility model relates to a pellicle laying device for a pipe type evaporator which comprises a shell body, a flooding tray arranged on the upside of the interior of the shell body, a plurality layers of sieve plates in the middle and a pipe board on the bottom. The sieve plates are provided with a plurality of equally ranged sieve pores, the pipe board is provided with a plurality of heat exchanging pipes which is grouped by 3 to 20 pieces, a plurality of equally ranged heat exchanging units are formed, the ports of the heat exchanging pipes are approximately 0.5 to 8 centimeters higher than the top surface of the pipe board, the diameter of the sieve pores of the device is very big and thereby blockage is not so easy, the laying pellicle is equal, the effect is good and the device is not seriously influenced by the changes of the stuff liquid, the heat transmitting efficiency is improved, the dirty knot caused by the unequal pellicle laying is prevented and the installation and maintenance are both convenient.
Description
The utility model relates to a kind of film-distributing device of tube-type down-flow evaporator.
Existing tubular evaparator, its film-distributing device mainly comprises: housing, be arranged on the liquor inlet of case top, be arranged on the seal cup of enclosure interior top, be arranged on the several layers sieve plate of seal cup below, and be arranged on the tube sheet of housing bottom, sieve plate is usually between two layers to several layers, offer some evenly distributed sieve apertures on every layer of sieve plate respectively, stagger respectively mutually along its vertical direction in sieve aperture position between each adjacent sieve plate, also offer some evenly distributed through holes on the tube sheet of housing bottom, being respectively arranged with heat exchanger tube in the through hole, staggers respectively mutually along its vertical direction in the sieve aperture position that the opening of each heat exchanger tube is adjacent on the sieve plate.During the work of this film-distributing device, feed liquid flows in the seal cup of its below through the import of case top, treat that seal cup is filled after, feed liquid is just overflowed along its wall, vertical drop to lower floor's sieve plate, again each sieve aperture from this sieve plate, with the form vertical drop of fluid column to the sieve plate plate face of its lower floor, and repeat successively, on the tube sheet that flows to housing bottom, last, feed liquid is entered in the pipe by the heat exchanger tube mouth of pipe, and form uniform liquid film along its tube wall and vertically descend, be heated evaporation simultaneously.Because in this tubular evaparator, be provided with heat exchanger tube quantity many more, its heat transfer space and heat exchange effect are just good more, therefore, at present on the tube sheet of tubular evaparator, its through hole offer and being provided with of heat exchanger tube all adopted the evenly spread pattern of compactness usually.This spread pattern certainly will cause the tube sheet fluid column whereabouts face area between the heat exchanger tube less relatively, thereby limited the screen-aperture on its adjacent sieve plate, simultaneously, for guaranteeing the flow of feed liquid, sieve aperture quantity is also more, and quantity general and heat exchanger tube keeps relation one to one.Because the screen-aperture on this sieve plate is less relatively, therefore, film-distributing device in use, sieve aperture is subject to impurity and foreign matter stops up, and has influenced the uniformity and the stability of cloth film; When serious, also can cause minimizing of feed liquid inlet or feed liquid in some heat exchanger tubes can't enter at all, make heat exchanger tube be in empty burning state, thereby have a strong impact on the operate as normal of tubular evaparator, greatly reduce the operating efficiency of tubular evaparator, also increased cleaning, the maintenance work of evaporimeter.In addition; during the heat exchanger tube that on tube sheet, is provided with; generally all be to pass through flanging; processing methods such as welding; therefore; when the upper surface of the heat exchanger tube mouth of pipe and tube sheet is fixedly connected; because the influence of its processing technology; usually the mouth of pipe of heat exchanger tube is equal substantially with the upper surface of tube sheet; sometimes about 0.5 millimeter of microprotrusion also can be omited by mouth of pipe place; this draw bail of heat exchanger tube and tube sheet; after making that feed liquid drops on the face of tube sheet fluid column whereabouts from sieve aperture, the feed liquid on tube sheet between the heat exchanger tube is difficult to flow mutually, thereby has also influenced the uniformity of film-distributing device cloth film in heat exchanger tube.
The purpose of this utility model is: a kind of film-distributing device of tubular evaparator is provided, and the sieve aperture on this film-distributing device sieve plate is difficult for blocked, feed liquid in heat exchanger tube film forming evenly, stable, and daily cleaning, care and maintenance are all comparatively convenient.
For realizing the purpose of this utility model, a kind of film-distributing device of tubular evaparator, comprise housing, be arranged on the liquor inlet of case top, be arranged on seal cup and several layers sieve plate in the housing, and the tube sheet that is arranged on housing bottom, seal cup is arranged between liquor inlet and the sieve plate, the several layers sieve plate is successively set on the top of tube sheet, offer some evenly distributed sieve apertures on every layer of sieve plate respectively, stagger respectively mutually along its vertical direction in position on the adjacent sieve plate between the sieve aperture, be positioned on the tube sheet of housing bottom and also offer some evenly distributed through holes, some heat exchanger tubes are fixedly installed in the through hole respectively, vertically also stagger respectively in the sieve aperture position that the upper port of heat exchanger tube is adjacent on the sieve plate, evenly be provided with some heat exchanger tube cellular zones on the described tube sheet, each heat exchanger tube cellular zone is formed by 3-20 root heat exchanger tube, the centre of each heat exchanger tube cellular zone all has an area to be not less than the tube sheet fluid column whereabouts face of heat exchanger tube bore, each tube sheet fluid column whereabouts face corresponds respectively to a sieve aperture on its adjacent sieve plate, and the upper level that each heat exchanger tube pipe end all exceeds tube sheet simultaneously is 0.5-8 centimetre.
The utility model has the advantages that: the sieve diameter that is opened on the sieve plate can be bigger, is difficult for stopping up; The cloth film is even, and cloth film effect is better, and insensitive to the variation of feed liquid flow; Can improve heat transfer efficiency, and can prevent because of the uneven fouling that produces of cloth film; Installation and maintenance are all more convenient.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model film-distributing device;
Fig. 2 is the upper sieve of the film-distributing device composition that hardens;
Fig. 3 is the bottom sieve-plate structure figure of film-distributing device;
Fig. 4 is a kind of heat exchanger tube cellular zone structural representation of tube sheet;
Fig. 5 is the draw bail schematic diagram of tube sheet and heat exchanger tube;
Fig. 6 is the heat exchanger tube cellular zone structural representation of another kind of tube sheet.
1, housing, 2, import, 3, seal cup, 4, sieve plate, 5, tube sheet, 6, sieve aperture, 7, through hole, 8, heat exchanger tube, 9, the heat exchanger tube cellular zone, 10, tube sheet fluid column whereabouts face
Shown in Fig. 1 to 5, a kind of film-distributing device of tubular evaparator, comprise housing 1, be arranged on the liquor inlet 2 at housing 1 top, be arranged on seal cup 3 and two-layer sieve plate 4 in the housing 1, and the tube sheet 5 that is arranged on housing 1 bottom, seal cup 3 is arranged on the below of liquor inlet 2, the top of sieve plate 4, two-layer sieve plate 4 is horizontally set on respectively between tube sheet 5 and the seal cup 3, all offer some evenly distributed sieve apertures 6 on the sieve plate 4, stagger respectively mutually along its vertical direction in position on the adjacent sieve plate 4 between the sieve aperture 6, be positioned on the tube sheet 5 of housing 1 bottom and also offer some evenly distributed through holes 7, some heat exchanger tubes 8 are fixedly installed on respectively in the through hole 7, vertically also stagger respectively in sieve aperture 6 positions that the position of upper of heat exchanger tube 8 is adjacent on the sieve plate 4, on the tube sheet 5 heat exchanger tube 8 average 11 be one group, form several altogether and be orthohexagonal heat exchanger tube cellular zone 9, all there is an area to be not less than the tube sheet fluid column whereabouts face 10 of heat exchanger tube 8 bores in each heat exchanger tube cellular zone 9, tube sheet fluid column whereabouts face 10 in each heat exchanger tube cellular zone 9 corresponds respectively to a sieve aperture 6 on the adjacent sieve plate 4, and the upper surface that each heat exchanger tube 8 pipe end all exceeds tube sheet 5 simultaneously is 3-5 centimetre.
As shown in Figure 6, each heat exchanger tube cellular zone 9 is made up of average 15 heat exchanger tubes respectively, and this heat exchanger tube cellular zone 9 is square, also is respectively arranged with a tube sheet fluid column whereabouts face 10 in the centre of each heat exchanger tube cellular zone 9.
In the utility model, the mean elements of heat exchanger tube 8 generally can be between the scope of 3-20 root in each heat exchanger tube cellular zone 9, and quantity is the 8-16 root preferably, and the shape of heat exchanger tube cellular zone 9 also can adopt as other different shapes such as triangles; Simultaneously, the height that each heat exchanger tube 8 pipe end generally can exceed the upper surface of tube sheet 5 is 0.5-8 centimetre, wherein exceeds between 2-6 centimetre then better.
This film-distributing device is when work, feed liquid is flow in the seal cup 3 by the import 2 at housing 1 top, after seal cup 3 fills with, feed liquid is just overflowed from the wall of seal cup 3, drop on the upper strata sieve plate 4, through sieve aperture 6 with the form vertical drop of fluid column to lower floor's sieve plate 4, flow on the tube sheet 5 through sieve aperture 6 again, because of 6 apertures of the sieve aperture on lower floor's sieve plate 4 bigger, therefore, each sieve aperture 6 can corresponding heat exchanger tube cellular zone 9, promptly usually can corresponding 3-20 root heat exchanger tube 8, and the area of the tube sheet fluid column whereabouts face 10 in the heat exchanger tube cellular zone 9 is corresponding with sieve aperture 6, simultaneously, heat exchanger tube 8 quantity in heat exchanger tube cellular zone 9 are many more, the aperture of sieve aperture 6 is also big more, is convenient to evenly flow for making feed liquid between the heat exchanger tube 8, and the tube wall of heat exchanger tube 8 exceeds the upper surface of tube sheet 5 also should be higher, feasible also have feed liquid to enter in place, sieve aperture 6 fluid column whereabouts heat exchanger tube 8 far away and the even film forming of energy, thereby obtain heating evaporation in heat exchanger tube 8.The sieve aperture 6 that this bore is bigger is difficult for being stopped up by impurity or foreign matter in use, thereby can guarantee the uniformity and the stability of film-distributing device cloth film, and is convenient to cleaning, the care and maintenance of evaporimeter.
Claims (4)
1, a kind of film-distributing device of tubular evaparator, comprise housing (1), be arranged on the liquor inlet (2) at housing (1) top, be arranged on seal cup (3) and several layers sieve plate (4) in the housing (1), and the tube sheet (5) that is arranged on housing (1) bottom, seal cup (3) is arranged between liquor inlet (2) and the sieve plate (4), several layers sieve plate (4) is successively set on the top of tube sheet (5), offer some evenly distributed sieve apertures (6) on every layer of sieve plate (4) respectively, stagger respectively mutually along its vertical direction in the position that adjacent sieve plate (4) is gone up between the sieve aperture (6), be positioned on the tube sheet (5) of housing (1) bottom and also offer some evenly distributed through holes (7), some heat exchanger tubes (8) are fixedly installed on respectively in the through hole (7), vertically also stagger respectively in sieve aperture (6) position that the upper port of heat exchanger tube (8) is adjacent on the sieve plate (4), it is characterized in that: evenly be provided with some heat exchanger tube cellular zones (9) on the described tube sheet (5), each heat exchanger tube cellular zone (9) is formed by 3-20 root heat exchanger tube (8), the centre of each heat exchanger tube cellular zone (9) all has an area to be not less than the tube sheet fluid column whereabouts face (10) of heat exchanger tube (8) bore, each tube sheet fluid column whereabouts face (10) corresponds respectively to the sieve aperture (6) on its adjacent sieve plate (4), and the upper level that each heat exchanger tube (8) pipe end all exceeds tube sheet (5) simultaneously is 0.5-8 centimetre.
2, the film-distributing device of a kind of tubular evaparator according to claim 1, it is characterized in that: each the heat exchanger tube cellular zone (9) in the described film-distributing device is formed by 8-16 root heat exchanger tube (8), and the height that each heat exchanger tube (8) pipe end all exceeds tube sheet (5) upper surface simultaneously is 2-6 centimetre.
3, the film-distributing device of a kind of tubular evaparator according to claim 1 and 2, it is characterized in that: each the heat exchanger tube cellular zone (9) in the described film-distributing device is made up of 11 heat exchanger tubes (8) respectively, this heat exchanger tube cellular zone (9) is regular hexagon, and the height that each heat exchanger tube (8) pipe end all exceeds tube sheet (5) upper surface simultaneously is 3-5 centimetre.
4, the film-distributing device of a kind of tubular evaparator according to claim 1 and 2, it is characterized in that: each the heat exchanger tube cellular zone (9) in the described film-distributing device is made up of 15 heat exchanger tubes (8) respectively, this heat exchanger tube cellular zone (9) is square, and the height that each heat exchanger tube (8) pipe end all exceeds tube sheet (5) upper surface simultaneously is 3-5 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244980 CN2488572Y (en) | 2001-07-19 | 2001-07-19 | Filming device for tubular evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244980 CN2488572Y (en) | 2001-07-19 | 2001-07-19 | Filming device for tubular evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488572Y true CN2488572Y (en) | 2002-05-01 |
Family
ID=33656303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244980 Expired - Fee Related CN2488572Y (en) | 2001-07-19 | 2001-07-19 | Filming device for tubular evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488572Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672585B (en) * | 2008-09-09 | 2012-04-25 | 贵阳铝镁设计研究院有限公司 | Filming device |
| CN101376066B (en) * | 2008-09-03 | 2012-06-20 | 苏州市中衡压力容器制造有限公司 | Film-distributing device of tube-type down-flow evaporator |
| CN108187359A (en) * | 2017-12-18 | 2018-06-22 | 江苏绿叶锅炉有限公司 | A kind of falling liquid film head improved structure of falling-film reboiler |
| CN110270587A (en) * | 2019-06-27 | 2019-09-24 | 丁乙飞 | Heavy-metal contaminated soil repair system, restorative procedure and its reparation reagent combination |
| CN114011098A (en) * | 2021-12-14 | 2022-02-08 | 北京广厦环能科技股份有限公司 | Falling film evaporator, evaporation concentration device system and treatment method of ethylene carbonate |
-
2001
- 2001-07-19 CN CN 01244980 patent/CN2488572Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376066B (en) * | 2008-09-03 | 2012-06-20 | 苏州市中衡压力容器制造有限公司 | Film-distributing device of tube-type down-flow evaporator |
| CN101672585B (en) * | 2008-09-09 | 2012-04-25 | 贵阳铝镁设计研究院有限公司 | Filming device |
| CN108187359A (en) * | 2017-12-18 | 2018-06-22 | 江苏绿叶锅炉有限公司 | A kind of falling liquid film head improved structure of falling-film reboiler |
| CN110270587A (en) * | 2019-06-27 | 2019-09-24 | 丁乙飞 | Heavy-metal contaminated soil repair system, restorative procedure and its reparation reagent combination |
| CN114011098A (en) * | 2021-12-14 | 2022-02-08 | 北京广厦环能科技股份有限公司 | Falling film evaporator, evaporation concentration device system and treatment method of ethylene carbonate |
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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 |