CN203447788U - Film distributor of falling film evaporation device - Google Patents
Film distributor of falling film evaporation device Download PDFInfo
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- CN203447788U CN203447788U CN201320486937.5U CN201320486937U CN203447788U CN 203447788 U CN203447788 U CN 203447788U CN 201320486937 U CN201320486937 U CN 201320486937U CN 203447788 U CN203447788 U CN 203447788U
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- Prior art keywords
- falling film
- cylindrical shell
- rabbet joint
- film evaporation
- evaporation equipment
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Abstract
The utility model relates to a film distributor of a falling film evaporation device. The film distributor contains a main body of the film distributor, which is connected with a heat exchange pipe of the falling film evaporation device, wherein the main body of the film distributor is constituted by a cylinder, slits are uniformly distributed in the circumferential direction of the cylinder, the start ends of the slits extend to an inlet of the cylinder, and the stop ends of the slits are ended on the inner wall of the cylinder; one side of each slit and the inner wall of the cylinder constitute a diversion surface of the cylinder, and an angle of inclination is formed at the root part of the diversion surface. Compared with the prior art, the angle of inclination is formed at the root part of the diversion surface, and when material liquid flows into the film distributor, the material liquid can not flow into the heat exchange pipe of the falling film evaporation device by being close to the wall from top to bottom, but flows into the heat exchange pipe along the angle of inclination of the diversion surface, so that the area by which the material liquid flows is increased, thus when the material liquid flows into the heat exchange pipe, a liquid film with uniform thickness is formed on the pipe wall, and the influence on an evaporation effect because part of a heat transfer surface on the pipe wall of the heat exchange pipe is not moisturized by the material liquid is further avoided.
Description
Technical field
The utility model relates to a kind of falling film evaporation equipment, particularly a kind of filming device of falling film evaporation equipment.
Background technology
Falling film evaporator, as a kind of energy-efficient evaporation equipment, is widely used in the fields such as chemical industry, pharmacy and food.Material is in filming device flows into the heat exchanger tube of falling film evaporator, and material, under self gravitation effect, is membranaceous along the inside pipe wall of filming device and flows down, and flows into falling film evaporator and evaporate.
The quality of filming device cloth film properties, directly has influence on production capacity and the operating characteristics of falling film evaporator.Cloth film inequality can cause the phenomenon of local cutout or " dry blowing ", can make by moistening heat-transfer area, not lost efficacy, and increases fouling, has a strong impact on evaporation effect.
Tradition zigzag filming device is that pipe end periphery is processed as to slot shape, feed liquid is flowed through after filming device slot groove and is flowed in the cylindrical shell of filming device again, because the self gravitation of feed liquid is vertically downward, so when feed liquid flows in the heat exchanger tube of falling film evaporator from the cylindrical shell of filming device, cannot guarantee on heat exchanger tube inwall, to form uniform liquid film, the uniformity of thickness of liquid film cannot be well controlled.
And when adopting spirality plug filming device, because spirality plug filming device is to utilize the plug on pipe top and tube wall gap to make feed liquid film forming, rotational flow effect is limited, the poor effect when low discharge cloth film, in addition, and have a degradation defect under feed pressure.
Utility model content
The purpose of this utility model is to provide a kind of filming device of falling film evaporation equipment, and to avoid feed liquid, vertical sticking wall flow lower time is caused the irregular phenomenon of cloth film from top to down.
To achieve these goals, the utility model has designed a kind of filming device of falling film evaporation equipment, comprise the filming device main body being connected with falling film evaporation equipment heat exchanger tube, described filming device main body consists of cylindrical shell, described cylindrical shell be circumferentially evenly distributed with the line of rabbet joint, the initiating terminal of the described line of rabbet joint extends to the import department of described cylindrical shell, and the clearing end of the described line of rabbet joint terminates on the inwall of described cylindrical shell;
One side of the described line of rabbet joint and the inwall of described cylindrical shell form the guide face of described cylindrical shell, and the root of described guide face has an inclination angle.
Embodiment of the present utility model compared with the existing technology, when feed liquid flows into the inwall of cylindrical shell from the line of rabbet joint of filming device cylindrical shell, feed liquid can flow into from the guide face of the line of rabbet joint one side, because the root of guide face has an inclination angle, so that feed liquid is when flow into not from top to down in the heat exchanger tube of adherent inflow falling film evaporation equipment, but take advantage of a situation and flow in heat exchanger tube along the inclination angle of guide face, strengthened the area that feed liquid is flowed through, thereby while guaranteeing that feed liquid flows in heat exchanger tube, make to form on its tube wall the liquid film of uniform thickness, thereby avoided the effect that has part heat-transfer area not evaporated by the moistening impact of feed liquid on the tube wall of heat exchanger tube.
In addition, the inside and outside footpath of described cylindrical shell, respectively measure-alike with the inside and outside footpath of described falling film evaporation equipment heat exchanger tube.Measure-alike due to the inside and outside footpath of cylindrical shell and the inside and outside footpath of falling film evaporation equipment heat exchanger tube, so when feed liquid flows into the heat exchanger tube of falling film evaporation equipment by cylindrical shell, can further guarantee continuity and ductility when feed liquid flows, better make the uniformity of thickness of liquid film controlled.
And the described line of rabbet joint is at least distributed with three groups.Because the line of rabbet joint on cylindrical shell is at least provided with three groups, thereby while guaranteeing that feed liquid flows in heat exchanger tube, make to form on its tube wall the liquid film of uniform thickness.
In addition, the degree of depth of the described line of rabbet joint is 40mm to 100mm; The width of the described line of rabbet joint is 2.0mm to 3.5mm.Because the line of rabbet joint has certain width and the degree of depth, so guaranteed that feed liquid can flow in cylindrical shell from the line of rabbet joint smoothly.
Accompanying drawing explanation
Fig. 1 is the structural representation of filming device of the falling film evaporation equipment of the utility model the first embodiment;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the top view of Fig. 1.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each embodiment of the utility model, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following embodiment and modification, also can realize each claim of the application technical scheme required for protection.
The first embodiment of the present utility model relates to a kind of filming device of falling film evaporation equipment, comprises the filming device main body being connected with falling film evaporation equipment heat exchanger tube.As shown in Figure 1 to Figure 3, in the present embodiment, filming device main body consists of cylindrical shell 1, cylindrical shell be circumferentially evenly distributed with the line of rabbet joint 2, the initiating terminal of the line of rabbet joint 2 extends to the import department of cylindrical shell 1, the clearing end of the line of rabbet joint 2 terminates on the inwall of cylindrical shell 1;
In addition, a side of the line of rabbet joint 2 and the inwall of cylindrical shell 1 form the guide face 3 of cylindrical shell 1, and the root of guide face 3 has an inclination angle 4, and whole guide face 3 is a trapezium structure.
When feed liquid flows into the inwall of cylindrical shells 1 from the line of rabbet joint 2 of filming device cylindrical shell 1, feed liquid can flow into from the guide face 3 of the line of rabbet joint 2 one sides, because the root of guide face 3 has an inclination angle 4, so that feed liquid is when flow into not from top to down in the heat exchanger tube of adherent inflow falling film evaporation equipment, but take advantage of a situation and flow in heat exchanger tube along the inclination angle of guide face 3, strengthened the area that feed liquid is flowed through, thereby while guaranteeing that feed liquid flows in heat exchanger tube, make to form on its tube wall the liquid film of uniform thickness, thereby avoided the effect that has part heat-transfer area not evaporated by the moistening impact of feed liquid on the tube wall of heat exchanger tube.
In addition, the line of rabbet joint 2 can arrange three to five groups, and in the present embodiment, the line of rabbet joint 2 offers three groups, owing to being provided with three groups of lines of rabbet joint 2 on cylindrical shell 1, thereby while guaranteeing that feed liquid flows in heat exchanger tube, makes to form on its tube wall the liquid film of uniform thickness.
And the degree of depth of the line of rabbet joint 2 can be selected 40mm to 100mm, width can be selected 2.0mm to 3.5mm.In the present embodiment, the degree of depth of the line of rabbet joint 2 is 60mm; The width of the line of rabbet joint 2 is 2.7mm.Because the line of rabbet joint has certain width and the degree of depth, thus guaranteed that feed liquid can be smoothly flows in cylindrical shell from the line of rabbet joint, and the stability of flow while having guaranteed that feed liquid enters.
The second embodiment of the present utility model relates to a kind of filming device of falling film evaporation equipment, the second embodiment is on the basis of the first embodiment, to have done further improvement, main improvement is: in the present embodiment, the inside and outside footpath of cylindrical shell 1, respectively measure-alike with the inside and outside footpath of falling film evaporation equipment heat exchanger tube.Measure-alike due to the inside and outside footpath of cylindrical shell 1 and the inside and outside footpath of falling film evaporation equipment heat exchanger tube, so when feed liquid flows into the heat exchanger tube of falling film evaporation equipment by cylindrical shell, can further guarantee continuity and ductility when feed liquid flows, better make the uniformity of thickness of liquid film controlled.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can to it, do various changes in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (5)
1. the filming device of a falling film evaporation equipment, comprise the filming device main body being connected with falling film evaporation equipment heat exchanger tube, described filming device main body consists of cylindrical shell, it is characterized in that: described cylindrical shell be circumferentially evenly distributed with the line of rabbet joint, the initiating terminal of the described line of rabbet joint extends to the import department of described cylindrical shell, and the clearing end of the described line of rabbet joint terminates on the inwall of described cylindrical shell;
One side of the described line of rabbet joint and the inwall of described cylindrical shell form the guide face of described cylindrical shell, and the root of described guide face has an inclination angle.
2. the filming device of falling film evaporation equipment according to claim 1, is characterized in that: the inside and outside footpath of described cylindrical shell, respectively measure-alike with the inside and outside footpath of described falling film evaporation equipment heat exchanger tube.
3. the filming device of falling film evaporation equipment according to claim 1, is characterized in that: the described line of rabbet joint is at least distributed with three groups.
4. according to the filming device of the falling film evaporation equipment described in any one in claims 1 to 3, it is characterized in that: the degree of depth of the described line of rabbet joint is 40mm to 100mm.
5. according to the filming device of the falling film evaporation equipment described in any one in claims 1 to 3, it is characterized in that: the width of the described line of rabbet joint is 2.0mm to 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486937.5U CN203447788U (en) | 2013-08-09 | 2013-08-09 | Film distributor of falling film evaporation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486937.5U CN203447788U (en) | 2013-08-09 | 2013-08-09 | Film distributor of falling film evaporation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203447788U true CN203447788U (en) | 2014-02-26 |
Family
ID=50127693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486937.5U Expired - Fee Related CN203447788U (en) | 2013-08-09 | 2013-08-09 | Film distributor of falling film evaporation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203447788U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546409A (en) * | 2016-11-04 | 2017-03-29 | 榆林学院 | A kind of research declines the experiment generating means of moisture film fluctuation |
| CN108654126A (en) * | 2018-06-26 | 2018-10-16 | 北京广厦环能科技股份有限公司 | A kind of material distributor and falling film evaporator |
-
2013
- 2013-08-09 CN CN201320486937.5U patent/CN203447788U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546409A (en) * | 2016-11-04 | 2017-03-29 | 榆林学院 | A kind of research declines the experiment generating means of moisture film fluctuation |
| CN108654126A (en) * | 2018-06-26 | 2018-10-16 | 北京广厦环能科技股份有限公司 | A kind of material distributor and falling film evaporator |
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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: 20140226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |