CN203525345U - Redistribution device in falling-film evaporator for caustic soda and caustic flake concentration - Google Patents
Redistribution device in falling-film evaporator for caustic soda and caustic flake concentration Download PDFInfo
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- CN203525345U CN203525345U CN201320378011.4U CN201320378011U CN203525345U CN 203525345 U CN203525345 U CN 203525345U CN 201320378011 U CN201320378011 U CN 201320378011U CN 203525345 U CN203525345 U CN 203525345U
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- falling
- liquid film
- film concentration
- concentration tube
- falling liquid
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Abstract
The utility model discloses a redistribution device in a falling-film evaporator for caustic soda and caustic flake concentration. The redistribution device can effectively avoid damage to the inner pipe wall of a falling-film concentration pipe and has a good film distribution effect. The redistribution device comprises the falling-film concentration pipe, wherein the upper end of the falling-film concentration pipe extends into an alkaline liquid inlet pipe box; an alkaline liquid inlet is formed in the alkaline liquid inlet pipe box; a plurality of film distribution slots are uniformly formed in the circumference of the upper end part of the falling-film concentration pipe in the alkaline liquid inlet pipe box; each film distribution slot penetrates through the pipe wall of the falling-film concentration pipe; a blade mounting rod is arranged in the falling-film concentration pipe along the axial direction; a plurality of redistribution blades are spirally arranged on the blade mounting rod; each redistribution blade downwards extends in an inclined manner to get close to the inner wall of the falling-film concentration pipe; a runner for enabling a liquid film to flow through is formed between the outer rims of the redistribution blades and the inner wall of the falling-film concentration pipe; the blade mounting rod is arranged in the upper section of the falling-film concentration pipe; and the length of the blade mounting rod is 2/3 of the total length of the falling-film concentration pipe.
Description
Technical field
The utility model relates to falling film evaporator, is specifically related to the apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali.
Background technology
For caustic soda, the structure of the apparatus for redistributing in the concentrated falling film evaporator of sheet alkali comprises: falling liquid film concentration tube, the upper end of falling liquid film concentration tube stretches in alkali lye import bobbin carriage, on alkali lye import bobbin carriage, be provided with alkali lye import, be positioned on the circumference of falling liquid film concentration tube upper end of alkali lye import bobbin carriage and be evenly provided with some cloth film grooves, each cloth film groove all runs through the tube wall of falling liquid film concentration tube, in the pore of falling liquid film concentration tube, run through vertically and be provided with blades installation bar, blades installation bar from top to bottom spiral cloth is equipped with some blades that distribute again, and each all downward-sloping inwall extending near falling liquid film concentration tube of blade that distribute again, distribute again and between the outward flange of blade and falling liquid film concentration tube inwall, form the runner of liquid film circulation.Traditional for caustic soda, the operation principle of the apparatus for redistributing in the concentrated falling film evaporator of sheet alkali is as follows: after the alkali lye pressurization that mass concentration is 60%, constantly from alkali lye import, be delivered in alkali lye import bobbin carriage, alkali lye in alkali lye import bobbin carriage constantly flows in cloth film groove, and continue to flow to the inwall of falling liquid film concentration tube along cloth film groove, thereby on the inwall of falling liquid film concentration tube, constantly form liquid film, also be that the continuous cloth film of alkali lye is on the inwall of falling liquid film concentration tube, the alkali lye that does not partly form the alkali lye of liquid film on the inner tubal wall of falling liquid film concentration tube or sputter from tube wall drops and is distributing on blade again, drop on the alkali lye distributing again on blade and to the inwall of falling liquid film concentration tube, again form liquid film along the blade landing that distributes again.Liquid film on Action of Gravity Field descending film concentration tube inner tubal wall constantly flows downward to next station.Said structure for caustic soda, the shortcoming of the apparatus for redistributing in the concentrated falling film evaporator of sheet alkali is: because blades installation bar runs through vertically, be arranged in falling liquid film concentration tube, and blades installation bar from top to bottom spiral is evenly equipped with the blade that distributes again, width is consistent from top to bottom to make the runner that distributes again between the edge of blade and the inwall of falling liquid film concentration tube, and steam in falling liquid film concentration tube flows from top to bottom, more down steam flow is larger, at runner width is consistent from top to bottom in the situation that, more down the flow velocity of steam is larger, thereby making the liquid film on the inwall of falling liquid film concentration tube is also that more down flow velocity is faster, thereby cause liquid film more down also larger to the wearing and tearing of falling liquid film concentration tube inwall, be very easy to like this cause the damage of falling liquid film concentration tube inwall.
Utility model content
The purpose of this utility model is: a kind of apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali that is not easy to damage falling liquid film concentration tube and can greatly improves cloth film effect is provided.
For achieving the above object, the technical solution adopted in the utility model is: for caustic soda, apparatus for redistributing in the concentrated falling film evaporator of sheet alkali, comprise: falling liquid film concentration tube, the upper end of falling liquid film concentration tube stretches in alkali lye import bobbin carriage, on alkali lye import bobbin carriage, be provided with alkali lye import, be positioned on the circumference of falling liquid film concentration tube upper end of alkali lye import bobbin carriage and be evenly provided with some cloth film grooves, each cloth film groove all runs through the tube wall of falling liquid film concentration tube, in the pore of falling liquid film concentration tube, be provided with vertically blades installation bar, blades installation bar from top to bottom spiral cloth is equipped with some blades that distribute again, and each all downward-sloping inwall extending near falling liquid film concentration tube of blade that distribute again, distribute again and between the outward flange of blade and falling liquid film concentration tube inwall, form the runner of liquid film circulation, described blades installation bar is arranged in the pore of epimere part in falling liquid film concentration tube, and the length of blades installation bar is 2/3rds of falling liquid film concentration tube overall length.
Further, the aforesaid apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali, wherein, described all tangential settings along same direction of rotation along falling liquid film concentration tube of each cloth film groove.
Further, the aforesaid apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali, wherein, adjacent two spacing that distribute again between blade on blades installation bar are 200mm～300mm.
The utility model has the advantages that: simple and practical, the length of blades installation bar is 2/3rds of falling liquid film concentration tube overall length, therefore the width of the mobile runner of Gong the steam in the falling liquid film concentration tube of blades installation bar below and liquid film increases greatly, make the steam in falling liquid film concentration tube hypomere relative mild with liquid film energy flow velocity, thereby greatly reduced the wearing and tearing to the inwall of hypomere falling liquid film concentration tube, effectively avoided falling liquid film concentration tube inwall to cause damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali described in the utility model.
Fig. 2 is the cross-sectional structure schematic diagram of cloth film groove in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.
As Fig. 1, shown in Fig. 2, for caustic soda, apparatus for redistributing in the concentrated falling film evaporator of sheet alkali, comprise: falling liquid film concentration tube 1, the upper end of falling liquid film concentration tube 1 stretches in alkali lye import bobbin carriage 2, on alkali lye import bobbin carriage 2, be provided with alkali lye import 21, on the circumference of falling liquid film concentration tube 1 upper end in alkali lye import bobbin carriage 2, be evenly provided with some cloth film grooves 7, each cloth film groove 7 all runs through the tube wall of falling liquid film concentration tube 1, in the pore 1 of falling liquid film concentration tube, be provided with vertically blades installation bar 5, blades installation bar 5 from top to bottom spiral has been evenly arranged some blades 6 that distribute again, and each all downward-sloping inwall extending near falling liquid film concentration tube 1 of blade 6 that distribute again, adjacent two spacing that distribute again between blade can be between 200mm～300mm, preferred distance is 250mm.Distribute again and between the outward flange of blade 6 and falling liquid film concentration tube 1 inwall, form the runner of liquid film circulation, described blades installation bar 5 is arranged in the pore of epimere part of falling liquid film concentration tube 1, and the length of blades installation bar 5 is 2/3rds of falling liquid film concentration tube 1 overall length.In the present embodiment, each described cloth film groove 7 along same direction of rotation all along the tangential setting of falling liquid film concentration tube 2.
Operation principle of the present utility model is as follows: after the alkali lye pressurization that mass concentration is 60%, constantly from alkali lye import 21, be delivered in alkali lye import bobbin carriage 2, alkali lye in alkali lye import bobbin carriage 2 constantly flows in cloth film groove 7, and continue to flow to the inwall of falling liquid film concentration tube 1 in cloth film groove 7 along the tangential direction of falling liquid film concentration tube 1 inwall, thereby on the inwall of falling liquid film concentration tube 1, constantly form liquid film, also be that the continuous cloth film of alkali lye is on the inwall of falling liquid film concentration tube 1, cloth film groove 7 is all along the tangential setting of falling liquid film concentration tube 1, greatly improved the effect of alkali lye cloth film on the inwall of falling liquid film concentration tube 1, when even if the flow velocity of alkali lye import bobbin carriage 2 interior alkali lye is very fast, alkali lye also can be along the good cloth film on the inwall of falling liquid film concentration tube 1 of the cloth film groove 7 of tangential setting.Part does not have the alkali lye that forms the alkali lye of liquid film or sputter from inwall on the inner tube=wall of falling liquid film concentration tube 1 to drop on the blade 6 that distributes again, drops on the alkali lye distributing again on blade 6 and to the inwall of falling liquid film concentration tube 1, forms liquid film along blade 6 landings that distribute again.Liquid film on Action of Gravity Field descending film concentration tube 1 inwall constantly flows downward.Because the length of blades installation bar 5 is 2/3rds of falling liquid film concentration tube 1 overall length, therefore in the falling liquid film concentration tube 1 of blades installation bar 5 belows can feed flow membrane flow the width of runner greatly increase, make the steam in falling liquid film concentration tube 1 hypomere relative mild with liquid film energy flow velocity, thereby greatly reduced the wearing and tearing to the inwall of hypomere falling liquid film concentration tube 1, effectively avoided falling liquid film concentration tube 1 inwall to cause damage.
Claims (3)
1. for caustic soda, apparatus for redistributing in the concentrated falling film evaporator of sheet alkali, comprise: falling liquid film concentration tube, the upper end of falling liquid film concentration tube stretches in alkali lye import bobbin carriage, on alkali lye import bobbin carriage, be provided with alkali lye import, be positioned on the circumference of falling liquid film concentration tube upper end of alkali lye import bobbin carriage and be evenly provided with some cloth film grooves, each cloth film groove all runs through the tube wall of falling liquid film concentration tube, in the pore of falling liquid film concentration tube, be provided with vertically blades installation bar, blades installation bar from top to bottom spiral cloth is equipped with some blades that distribute again, and each all downward-sloping inwall extending near falling liquid film concentration tube of blade that distribute again, distribute again and between the outward flange of blade and falling liquid film concentration tube inwall, form the runner of liquid film circulation, it is characterized in that: described blades installation bar is arranged in the pore of epimere part in falling liquid film concentration tube, and the length of blades installation bar is 2/3rds of falling liquid film concentration tube overall length.
2. the apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali according to claim 1, is characterized in that: described all tangential settings along same direction of rotation along falling liquid film concentration tube of each cloth film groove.
3. the apparatus for redistributing for the concentrated falling film evaporator of caustic soda, sheet alkali according to claim 1 and 2, is characterized in that: adjacent two spacing that distribute again between blade on blades installation bar are 200mm～300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378011.4U CN203525345U (en) | 2013-06-28 | 2013-06-28 | Redistribution device in falling-film evaporator for caustic soda and caustic flake concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378011.4U CN203525345U (en) | 2013-06-28 | 2013-06-28 | Redistribution device in falling-film evaporator for caustic soda and caustic flake concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203525345U true CN203525345U (en) | 2014-04-09 |
Family
ID=50411609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320378011.4U Withdrawn - After Issue CN203525345U (en) | 2013-06-28 | 2013-06-28 | Redistribution device in falling-film evaporator for caustic soda and caustic flake concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203525345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349842A (en) * | 2013-06-28 | 2013-10-16 | 张家港化工机械股份有限公司 | Redistribution device in falling-film evaporator for concentration of caustic soda and caustic soda flakes |
| CN104815446A (en) * | 2015-05-11 | 2015-08-05 | 沈阳东方钛业股份有限公司 | Single-bowl-shaped bearing leak-free falling-film tube |
-
2013
- 2013-06-28 CN CN201320378011.4U patent/CN203525345U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349842A (en) * | 2013-06-28 | 2013-10-16 | 张家港化工机械股份有限公司 | Redistribution device in falling-film evaporator for concentration of caustic soda and caustic soda flakes |
| CN103349842B (en) * | 2013-06-28 | 2015-09-16 | 苏州天沃科技股份有限公司 | For the apparatus for redistributing in the falling film evaporator that caustic soda, sheet alkali concentrate |
| CN104815446A (en) * | 2015-05-11 | 2015-08-05 | 沈阳东方钛业股份有限公司 | Single-bowl-shaped bearing leak-free falling-film tube |
| CN104815446B (en) * | 2015-05-11 | 2016-06-15 | 沈阳东方钛业股份有限公司 | Single bowl-type supporting No leakage film supplying tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU TIANWO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZHANGJIAGANG CHEMICAL MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Suzhou City, Jiangsu province 215633 gold town Zhangjiagang city after Cheng Cheng Yang Lu Patentee after: Suzhou Tian Wo Science and Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215633 gold town Zhangjiagang city after Cheng Cheng Yang Road Zhangjiagang chemical machinery Limited by Share Ltd Patentee before: Zhangjiagang Chamical Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |