CN201815128U - Tapered tube type falling film evaporator - Google Patents
Tapered tube type falling film evaporator Download PDFInfo
- Publication number
- CN201815128U CN201815128U CN2010205704499U CN201020570449U CN201815128U CN 201815128 U CN201815128 U CN 201815128U CN 2010205704499 U CN2010205704499 U CN 2010205704499U CN 201020570449 U CN201020570449 U CN 201020570449U CN 201815128 U CN201815128 U CN 201815128U
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- Prior art keywords
- film evaporator
- falling film
- tube
- tapered tube
- type falling
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- Expired - Fee Related
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Abstract
The utility model discloses a tube type falling film evaporator which is manufactured by using a tapered tube. The tapered tube is used as a heat exchange tube of the device, the big end of the tapered tube is connected with a liquid distributor, and the small end of the tapered tube is connected with a separation chamber. Compared with the prior art, the tapered tube type falling film evaporator can effectively avoid local dry wall phenomenon of the heat exchange tube in gas evaporation process to enable the thickness distribution of a liquid membrane to be uniform, thus ensuring the maximization of an effective heat exchange area.
Description
Technical field
The utility model belongs to the evaporator designs field, especially a kind of improved tube-type down-flow evaporator.
Background technology
Falling film evaporator is generally used for concentrating of liquid, is widely used in industries such as chemical industry, petroleum refining, desalinizations.The shell and tube downward film evaporator mainly is made up of parts such as vaporization chamber, separation chamber, distributors.Liquid material is sent to vaporization chamber heating tubulation inwall equably through distributor during evaporation, and liquid material is membranaceous at gravity effect lower edge tube wall own and flows downward, and evaporates simultaneously.Falling film evaporator has that heat transfer coefficient is higher, heat transfer temperature loss is little, is fit to handle heat sensitive material, is easy to realize the multiple-effect operation, the bigger advantages such as material of suitable evaporation viscosity.
The tradition falling film evaporator in use will be guaranteed the heat exchange efficiency of tubulation falling film evaporator, guarantees that solution evenly distributes on tubulation, and still have following technical problem to be further improved: 1, thickness of liquid film is at the skewness up and down of tubulation; 2, owing to working substance steam flows, liquid measure is not enough, the equal reason of tubulation surface roughness causes pipe interstitial fluid stream departing from vertically; 3, along with the evaporation of solvent, material slowly reduces, and bias current occurs in the bottom of tubulation.Above problem can cause falling film evaporator in the course of the work, the evaporation tube surface produces local dry-out, liquid material is in the easy bias current of vertical direction, especially in the tube bank of base of evaporator, the liquid material flow reduces, influenced by it and produce local dry-out, reduce evaporation efficiency, cause the loss of effective heat exchange quality.
Summary of the invention
In order to address the above problem, the utility model aims to provide the conical type falling film evaporator, is specially to adopt concentric conical pipe to replace concentric isometrical steel pipe to make tube-type down-flow evaporator.
Heat exchanger tube is the concentric tapered pipe in a kind of employing conical type falling film evaporator among the present invention, vaporization chamber, and the conical pipe major part links to each other with liquid distribution trough, and the microcephaly links to each other with the separation chamber, and liquid material is flowed to the microcephaly by major part, carries out gas-liquid separation again in the separation chamber.
Conical pipe described in the present invention is the conical pipe of same specification.
Adopt conical pipe to make falling film evaporator, material is membranaceous major part by conical pipe at gravity effect lower edge tube wall own and flows to the microcephaly, evaporate when flowing, along with gas-liquid separation, the liquid partial discharge reduces gradually, owing to adopted conical pipe, actual internal area is dwindled to the microcephaly gradually by major part, unevaporated material nature shrinks along conical pipe, keeps thickness of liquid film, replenishes the minimizing of the thickness of liquid film that causes because of evaporation, thickness of liquid film is equal up and down to make it, make full use of effective disengagement area of vaporization chamber, improved heat exchange efficiency, avoided the generation of local dry-out.
Description of drawings
Fig. 1 is the vaporization chamber structural representation that conical pipe is made;
Fig. 2 is the conical pipe generalized section;
Fig. 3 is that the present invention is applied in the structural representation on the tube-type down-flow evaporator.
Reference numeral: the 1st, conical pipe, the 2nd, orifice plate, the 3rd, cylindrical shell, the 4th, thermal source import, the 5th, thermal source outlet, the 6th, liquid distribution trough, the 7th, vaporization chamber, the 8th, separation chamber.
The specific embodiment:
In conjunction with the accompanying drawings the conical type falling film evaporator is elaborated.
Conical pipe position in the utility model tube-type down-flow evaporator as shown in Figure 1, conical pipe welding or expanded joint are formed vaporization chambers with accessories such as cylindrical shell 3, thermal source import 4 and thermal source outlets 5 on orifice plate 2; Vaporization chamber 7 major parts are linked to each other with liquid distribution trough 6, and the microcephaly links to each other with separation chamber 8 and is assembled into a cover falling film evaporator, as shown in Figure 3.
Claims (2)
1. a conical type falling film evaporator is characterized in that, heat exchanger tube is the concentric tapered pipe in the vaporization chamber, and the conical pipe major part links to each other with liquid distribution trough, and the microcephaly links to each other with the separation chamber.
2. a kind of conical type falling film evaporator according to claim 1 is characterized in that described conical pipe is the conical pipe of same specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205704499U CN201815128U (en) | 2010-10-21 | 2010-10-21 | Tapered tube type falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205704499U CN201815128U (en) | 2010-10-21 | 2010-10-21 | Tapered tube type falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815128U true CN201815128U (en) | 2011-05-04 |
Family
ID=43913100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205704499U Expired - Fee Related CN201815128U (en) | 2010-10-21 | 2010-10-21 | Tapered tube type falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815128U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006806A (en) * | 2016-07-22 | 2016-10-12 | 株洲三特环保节能有限公司 | Hot air and tubular heater combined waste acid concentration treatment method and device |
| CN106267868A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of vertical tube falling vaporizer |
| CN106693419A (en) * | 2015-11-12 | 2017-05-24 | 中国石油化工股份有限公司 | Vertical tube falling-film evaporator |
| CN110812867A (en) * | 2019-10-31 | 2020-02-21 | 魏双清 | Climbing film evaporator |
| CN111760307A (en) * | 2020-07-16 | 2020-10-13 | 天津恒脉机电科技股份有限公司 | Environment-friendly tubular falling film evaporation system |
-
2010
- 2010-10-21 CN CN2010205704499U patent/CN201815128U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267868A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of vertical tube falling vaporizer |
| CN106693419A (en) * | 2015-11-12 | 2017-05-24 | 中国石油化工股份有限公司 | Vertical tube falling-film evaporator |
| CN106006806A (en) * | 2016-07-22 | 2016-10-12 | 株洲三特环保节能有限公司 | Hot air and tubular heater combined waste acid concentration treatment method and device |
| CN110812867A (en) * | 2019-10-31 | 2020-02-21 | 魏双清 | Climbing film evaporator |
| CN110812867B (en) * | 2019-10-31 | 2022-01-07 | 山东沃德净水科技有限公司 | Climbing film evaporator |
| CN111760307A (en) * | 2020-07-16 | 2020-10-13 | 天津恒脉机电科技股份有限公司 | Environment-friendly tubular falling film evaporation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20161021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |