CN202876389U - Combined falling film evaporator - Google Patents
Combined falling film evaporator Download PDFInfo
- Publication number
- CN202876389U CN202876389U CN 201220574316 CN201220574316U CN202876389U CN 202876389 U CN202876389 U CN 202876389U CN 201220574316 CN201220574316 CN 201220574316 CN 201220574316 U CN201220574316 U CN 201220574316U CN 202876389 U CN202876389 U CN 202876389U
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- China
- Prior art keywords
- mozzle
- heat exchanger
- exchanger tube
- separation chamber
- tube
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a combined falling film evaporator. A heater is arranged in a first guide pipe, an interval between the first guide pipe and a first heat exchange pipe is a gas-liquid separation chamber, a first vacuum pump is communicated with the gas-liquid separation chamber through a pipeline, a first channel is positioned near a feeding port of the first heat exchange pipe and is positioned above the first guide pipe, a second discharging hole is arranged in the bottom of a second heat exchange pipe, a second guide pipe is positioned in the second heat exchange pipe and is a spiral guide pipe, a second heater is arranged in the second guide pipe, an interval between the second guide pipe and the second heat exchange pipe is a separation chamber, a second vacuum pump is communicated with the separation chamber, a second upper channel is positioned near a feeding port of the second heat exchange pipe, the upper end of the second guide pipe is connected with the bottom of the second upper channel, and the second upper channel is communicated with a first discharging hole through a feed liquid conveying pipe. According to the combined falling film evaporator, feed liquid is treated by two falling film evaporators so as to have better concentration and viscosity.
Description
Technical field
The utility model relates to a kind of falling film evaporator, particularly a kind of combined droping film evaporimeter.
Background technology
Feed liquid is added from falling film evaporator heating clamber upper tube box, through liquid distribution and film formation device, is evenly distributed in each heat exchanger tube, gravity induce and airflow function under, become evenly membranaceous and flow from top to bottom.In the flow process, vaporized by the heat that the heat exchanger tube heat medium produces, the separation chamber that the steam that produces and liquid phase enter evaporimeter jointly, vapour-liquid is through fully separating, steam enters condenser condenses (single-action operation) or enters lower 1st effective evaporator as heat medium, thereby realize the multiple-effect operation, liquid phase is then discharged by the separation chamber.
In order to make former preferably concentration and the viscosity of arriving of feed liquid, it need to be processed through falling film evaporator, as much as possible bubble contained in the feed liquid is taken off to the greatest extent.When existing straight pipe type falling film evaporator is processed feed liquid, owing to not possessing heat effect in the first mozzle in the first heat exchanger tube, therefore feed liquid be heated inhomogeneously, cause that contained bubble can't fully be taken off to the greatest extent in it, still affect its concentration and viscosity.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model provides a kind of combined droping film evaporimeter, and the utility model makes feed liquid have preferably concentration and viscosity through the processing of two falling film evaporators to feed liquid.
The technical scheme that realizes the utility model purpose is as follows:
The combined droping film evaporimeter, comprise the first heat exchanger tube, the first mozzle, the first vavuum pump and the first upper tube box, the tube wall of the first heat exchanger tube is provided with calandria, the bottom of the first heat exchanger tube is provided with the first discharging opening, the first mozzle is arranged in the first heat exchanger tube, be provided with heater in the first mozzle, interval between the first mozzle and the first heat exchanger tube becomes gas-liquid separation chamber, the first vavuum pump is communicated with gas-liquid separation chamber by pipeline, the first upper tube box is positioned near the charging port of the first heat exchanger tube and is positioned at the top of the first mozzle, also comprise the second heat exchanger tube, the second mozzle, the second vavuum pump and the second upper tube box, the bottom of the second heat exchanger tube is provided with the second discharging opening, the second mozzle is arranged in the second heat exchanger tube, the second mozzle is spiral mozzle, be provided with secondary heater in the second mozzle, interval between the second mozzle and the second heat exchanger tube becomes the separation chamber, the second vavuum pump is communicated with the separation chamber, the second upper tube box is positioned near the charging port of the second heat exchanger tube, the upper end of the second mozzle is connected with the bottom of the second upper tube box, and the second upper tube box is communicated with the first discharging opening by the feed liquid carrier pipe.
Further, the tube wall of described the second heat exchanger tube is provided with the second calandria.
Further, described the second calandria is the helical spring of screw arrangement on the second heat exchanger tube.
Adopted such scheme, the utility model passes through by the first heat exchanger tube, the first mozzle, first falling film evaporator that the first vavuum pump and the first upper tube box form, and by the second heat exchanger tube, the second mozzle, second falling film evaporator that the second vavuum pump and the second upper tube box form, feed liquid is after first falling film evaporator is processed, output to the second upper tube box of second falling film evaporator, the feed liquid of overflowing from the second upper tube box is moving along the tube wall surface current of spiral helicine the second mozzle, feed liquid is in the process that flows along the second mozzle, not only prolonged its path of flowing, and because the helical form effect of the second mozzle, so that the resistance on the drag size straight pipe type mozzle tube wall face that feed liquid is subject in flow process, therefore, the flowing velocity of feed liquid is minimized, swabbing action through abundant heating and the second vavuum pump, the gas that feed liquid is come out is discharged to the outside of the second falling film evaporator, therefore, the feed liquid through two falling film evaporator effects has improved concentration and viscosity.
Description of drawings
Fig. 1 is the structural representation of combined droping film evaporimeter of the present utility model;
In the accompanying drawing, 1 is the first heat exchanger tube, and 2 is the first mozzle, and 3 is the first vavuum pump, and 4 is the first upper tube box, and 5 is calandria, and 6 is the first discharging opening, and 7 is gas-liquid separation chamber, and 8 is helical spring;
11 is the second heat exchanger tube, and 12 is the second mozzle, and 13 is the second vavuum pump, and 14 is the second upper tube box, and 15 is the second calandria, and 16 is the second discharging opening, and 17 is the separation chamber, and 18 is secondary heater.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, combined droping film evaporimeter of the present utility model comprises the first heat exchanger tube 1, the first mozzle 2, the first vavuum pump 3 and the first upper tube box 4.The tube wall of the first heat exchanger tube 1 is provided with calandria 5, and the heat that this calandria 5 sends distributes by the tube wall of the first heat exchanger tube 1, makes atmosphere with heat of the first heat exchanger tube 1 inner formation.The bottom of the first heat exchanger tube 1 is provided with the first discharging opening 6, and this discharging opening is used for will be through the feed liquid output of heating.The first mozzle 2 is arranged in the first heat exchanger tube 1, the first mozzle 2 and is fixed in the first heat exchanger tube 1 by support, and is positioned at the middle part of the first heat exchanger tube.Interval between the first mozzle 2 and the first heat exchanger tube 1 becomes gas-liquid separation chamber 7, and feed liquid is in heating process, and its inner contained bubble or water is evaporated, and forms gas dispense in this gas-liquid separation chamber 7.The first vavuum pump 3 is communicated with gas-liquid separation chamber by pipeline, and the gas that will be dispersed in the gas-liquid separation chamber 7 by the first vavuum pump 3 aspirates, so that critical in vacuum state in the gas-liquid separation chamber 7.Be provided with heat medium or heater in the first mozzle 2.Heat medium is steam.Heater is helical spring, and this helical spring is arranged on the internal face of the first mozzle in the shape of a spiral, is preferably helical spring 8 in the present embodiment.The first upper tube box 4 is positioned near the charging port of the first heat exchanger tube 1 and is positioned at the top of the first mozzle, the first upper tube box 4 is the casing that the end sealing other end has opening, after being input to continuously feed liquid in the first upper tube box 4, these feed liquids are overflowed from the port of the first upper tube box 4 along with the increase of volume, under action of gravitation, tube wall surface current along the first upper tube box 4 is moving, then flow on the tube wall of the first mozzle.
With reference to Fig. 1, combined droping film evaporimeter of the present utility model also comprises the second heat exchanger tube 11, the second mozzle 12, the second vavuum pump 13 and the second upper tube box 14.The tube wall of the second heat exchanger tube 11 is provided with the second calandria 15, and the heat that this second calandria 15 sends distributes by the tube wall of the second heat exchanger tube 11, makes atmosphere with heat of the second heat exchanger tube 11 inner formation.The bottom of the second heat exchanger tube 11 is provided with the second discharging opening 16, and this discharging opening is used for will be through the feed liquid output of heating.The second mozzle 12 is arranged in the second heat exchanger tube 11, the second mozzles 12 and is fixed in the second heat exchanger tube 11 by support, and is positioned at the middle part of the second heat exchanger tube.Interval between the second mozzle 12 and the second heat exchanger tube 11 becomes separation chamber 17, and feed liquid is in heating process, and its inner contained bubble or water is evaporated, and forms gas dispense in this separation chamber 17.The second vavuum pump 13 is communicated with gas-liquid separation chamber by pipeline, and the gas that will be dispersed in the separation chamber 17 by the second vavuum pump 13 aspirates, so that critical in vacuum state in the separation chamber 17.The second mozzle 12 is spiral the second mozzle.Feed liquid is in the process that flows along the second mozzle, not only prolonged its path of flowing, and because the helical form effect of the second mozzle, so that the resistance on drag size straight pipe type the second mozzle tube wall face that feed liquid is subject in flow process, therefore, the flowing velocity of feed liquid is minimized, through the swabbing action of abundant heating and the second vavuum pump, the gas that feed liquid is come out is discharged to the outside of falling film evaporator, is beneficial to improve concentration and viscosity.Be provided with secondary heater 18 in the second mozzle 12, secondary heater is helical spring, and this helical spring is arranged on the internal face of the second mozzle in the shape of a spiral.The second upper tube box 14 is positioned near the charging port of the second heat exchanger tube 11 and is positioned at the top of the second mozzle, the upper end of the second mozzle is connected with the bottom of the second upper tube box, the second upper tube box is communicated with the first discharging opening 6 by the feed liquid carrier pipe, the second upper tube box 14 is the casing that the end sealing other end has opening, after the feed liquid of the first discharging opening 6 outputs is input in the second upper tube box 14 continuously, these feed liquids are overflowed from the port of the second upper tube box 14 along with the increase of volume, under action of gravitation, tube wall surface current along the second upper tube box 14 is moving, then flows on the tube wall of moving the second mozzle.
Claims (3)
1. combined droping film evaporimeter, comprise the first heat exchanger tube, the first mozzle, the first vavuum pump and the first upper tube box, the tube wall of the first heat exchanger tube is provided with calandria, the bottom of the first heat exchanger tube is provided with the first discharging opening, the first mozzle is arranged in the first heat exchanger tube, be provided with heater in the first mozzle, interval between the first mozzle and the first heat exchanger tube becomes gas-liquid separation chamber, the first vavuum pump is communicated with gas-liquid separation chamber by pipeline, the first upper tube box is positioned near the charging port of the first heat exchanger tube and is positioned at the top of the first mozzle, it is characterized in that, also comprise the second heat exchanger tube, the second mozzle, the second vavuum pump and the second upper tube box, the bottom of the second heat exchanger tube is provided with the second discharging opening, the second mozzle is arranged in the second heat exchanger tube, the second mozzle is spiral mozzle, be provided with secondary heater in the second mozzle, interval between the second mozzle and the second heat exchanger tube becomes the separation chamber, the second vavuum pump is communicated with the separation chamber, the second upper tube box is positioned near the charging port of the second heat exchanger tube, the upper end of the second mozzle is connected with the bottom of the second upper tube box, and the second upper tube box is communicated with the first discharging opening by the feed liquid carrier pipe.
2. combined droping film evaporimeter according to claim 1 is characterized in that, the tube wall of described the second heat exchanger tube is provided with the second calandria.
3. combined droping film evaporimeter according to claim 2 is characterized in that, described the second calandria is the helical spring of screw arrangement on the second heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574316 CN202876389U (en) | 2012-11-02 | 2012-11-02 | Combined falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574316 CN202876389U (en) | 2012-11-02 | 2012-11-02 | Combined falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876389U true CN202876389U (en) | 2013-04-17 |
Family
ID=48067856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574316 Expired - Fee Related CN202876389U (en) | 2012-11-02 | 2012-11-02 | Combined falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202876389U (en) |
-
2012
- 2012-11-02 CN CN 201220574316 patent/CN202876389U/en not_active Expired - Fee Related
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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: 20130417 Termination date: 20151102 |
|
| EXPY | Termination of patent right or utility model |