CN207012584U - A kind of liquid distribution trough of falling film evaporator - Google Patents
A kind of liquid distribution trough of falling film evaporator Download PDFInfo
- Publication number
- CN207012584U CN207012584U CN201720915935.1U CN201720915935U CN207012584U CN 207012584 U CN207012584 U CN 207012584U CN 201720915935 U CN201720915935 U CN 201720915935U CN 207012584 U CN207012584 U CN 207012584U
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- China
- Prior art keywords
- liquid distribution
- distribution trough
- falling film
- film evaporator
- perforate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a kind of liquid distribution trough of falling film evaporator, belongs to chemical production field, and it is in membranaceous flowing in evaporator that can make solution, so as to improve evaporation effect.Mainly include：It is 1.0 1.5mm that the liquid distribution trough of falling film evaporator, which is used with heat exchanger tube identical material, thickness, and external diameter matches with heat exchange bore, it is connected with heat exchanger by the way of spot welding, liquid distribution trough perforate is circumference uniform distribution, and two rounds are staggeredly perforates, and lower end processes toothing.The perforate of the liquid distribution trough is circular or square.
Description
Technical field
The invention belongs to chemical production field, more particularly to a kind of liquid distribution trough of falling film evaporator.
Background technology
Falling film evaporator can evaporate heat sensitive material and concentration or the larger solution of viscosity, be widely used in medicine, food
The water of the industries such as product, chemical industry, light industry or the evaporation and concentration of organic solution, and can be widely used for the liquid waste processing of above industry.Especially
It applies to heat sensitive material, and the equipment is operated continuously under the conditions of vacuum and low temperature, has evaporability height, energy-conservation drop
Consumption, operating cost is low and can guarantee that material consistency in evaporation process.
Falling film evaporator is flowed downward under the gravity and vacuum action of itself using solution along tube wall in membranaceous, is entered simultaneously
Row evaporation, because solution is in membranaceous flowing in evaporator, heat transfer coefficient is higher, and the residence time is short, is not easy to cause material deterioration,
Particularly suitable for processing heat sensitive material.But if during evaporation operation, solution skewness, fail on tube wall uniformly
Film forming, heat transfer coefficient can be caused to decline, evaporation effect is bad, or even evaporation operation can not be carried out.So in order that solution can be
Uniform cloth film on wall, heating tube top must be provided with processing good liquid distribution trough.
The content of the invention
The invention provides a kind of liquid distribution trough of falling film evaporator, and it is in membranaceous flowing in evaporator that can make solution,
So as to improve evaporation effect.
In order to reach object above, the present invention uses following technical scheme：
The liquid distribution trough of falling film evaporator use with heat exchanger tube identical material, thickness 1.0-1.5mm, external diameter is with changing
Heat pipe internal diameter matches, and is connected with heat exchanger by the way of spot welding, and liquid distribution trough perforate is circumference uniform distribution, and two rounds are
Staggeredly perforate, lower end processing toothing.The perforate of the liquid distribution trough is circular or square.
The beneficial effects of the invention are as follows：The invention provides a kind of liquid distribution trough of falling film evaporator, liquid distribution trough
Perforate is circumference uniform distribution, and surrounding has solution to be flowed downward along tube wall in membranaceous in every heat exchanger tube, with liquid material liquid level
Rise, when liquid level reaches liquid distribution trough upper end perforate, solution overflows into heat exchanger tube out of hole, and the round of liquid distribution trough two is interleaved
Hole, so the distribution of surrounding solution is further uniform in every heat exchanger tube, and liquid distribution trough lower end is processed into toothing, solution
After being entered by aperture in liquid distribution trough, further liquid stream is broken by sawtooth, makes solution along heat exchanger tube surrounding in membranaceous
Flow downward, make solution more uniformly cloth film on wall, so that heat transfer coefficient is higher, Solution dwell time is short, is not easy to cause
Material deterioration, so as to strengthen evaporation effect.
Brief description of the drawings
Fig. 1 is liquid distribution trough expanded view.
Fig. 2 is liquid distribution trough roll-forming figure.
Fig. 3 is liquid distribution trough and heat exchanger tube assembling schematic diagram.
Embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to the present invention.
As shown in figure 3, solution enters tube side upper perforated plate by feed pump at the top of falling film evaporator, with liquid material liquid level
Rise, when liquid level reaches liquid distribution trough upper end perforate, solution overflows into heat exchanger tube out of hole, and liquid distribution trough perforate is circumferentially equal
Cloth, surrounding has solution to be flowed downward along tube wall in membranaceous in every heat exchanger tube, and the round of liquid distribution trough two is to interlock
Perforate, the distribution of surrounding solution is further uniform in every heat exchanger tube, and liquid distribution trough lower end processing toothing, solution passes through small
After hole enters in liquid distribution trough, further liquid stream is broken by sawtooth, can prevent liquid from being flowed down into shallow bid, change solution edge
Heat pipe surrounding flows downward in membranaceous.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of liquid distribution trough of falling film evaporator, it is characterised in that the liquid distribution trough external diameter of falling film evaporator and heat exchange
Bore matches, and is connected with heat exchanger by the way of spot welding, and the liquid distribution trough perforate is circumferentially uniform, the perforate
It is staggeredly perforate, the liquid distribution trough lower end is zigzag.
2. the liquid distribution trough of falling film evaporator according to claim 1, it is characterised in that the liquid distribution trough is opened
Hole is circular or square.
3. the liquid distribution trough of falling film evaporator according to claim 1, it is characterised in that the liquid of falling film evaporator point
Cloth device uses and heat exchanger tube identical material.
4. the liquid distribution trough of falling film evaporator according to claim 1, it is characterised in that thickness 1.0-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915935.1U CN207012584U (en) | 2017-07-26 | 2017-07-26 | A kind of liquid distribution trough of falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915935.1U CN207012584U (en) | 2017-07-26 | 2017-07-26 | A kind of liquid distribution trough of falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207012584U true CN207012584U (en) | 2018-02-16 |
Family
ID=61481166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720915935.1U Expired - Fee Related CN207012584U (en) | 2017-07-26 | 2017-07-26 | A kind of liquid distribution trough of falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207012584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-07-26 CN CN201720915935.1U patent/CN207012584U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |