CN105396311B - Falling film evaporator - Google Patents
Falling film evaporator Download PDFInfo
- Publication number
- CN105396311B CN105396311B CN201510925323.6A CN201510925323A CN105396311B CN 105396311 B CN105396311 B CN 105396311B CN 201510925323 A CN201510925323 A CN 201510925323A CN 105396311 B CN105396311 B CN 105396311B
- Authority
- CN
- China
- Prior art keywords
- perforated plate
- cloth liquid
- communicated
- housing
- guide shell
- Prior art date
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
- B01D1/305—Demister (vapour-liquid separation)
Abstract
A kind of falling film evaporator,Including hollow housing,Located at the upper perforated plate of housing upper and lower ends,Lower perforated plate,Heat exchanger tube is provided between upper perforated plate and lower perforated plate,Upper perforated plate and down tube plate surface are provided with the through hole connected with heat exchanger tube,The upper end of upper perforated plate is provided with upper cover,Upper cover surface is communicated with to the charging aperture on upper perforated plate surface,The lower end of lower perforated plate is provided with low head,Low head bottom is provided with discharging opening,The side wall of the lower end of housing is provided with heating medium inlet,The side wall of the upper end of housing is provided with Crude product input,Enclosed between upper cover and upper perforated plate and be set as cavity volume,Feed space is sequentially provided with from top to bottom in cavity volume,Guide shell,First cloth liquid room,Second cloth liquid room,The upper end of wherein feed space connects with charging aperture,The lower end of feed space is communicated in guide shell by connecting tube,Guide shell upper end is provided with overfall,The first cloth liquid chamber surface is communicated with to the guide hole of the second cloth liquid room,The second cloth liquid chamber surface is communicated with to the mozzle on upper perforated plate surface.
Description
Technical field
The present invention relates to evaporator device field, espespecially a kind of falling film evaporator.
Background technology
Falling film evaporation is that feed liquid is added from falling film evaporator heating chamber upper tube box, and feed liquid is uniformly assigned in each heat exchanger tube,
And flowed down in uniformly membranaceous along heat exchange inside pipe wall.During feed liquid is flowed down, heated medium heating vaporization, the steam of generation with
, jointly into the separation chamber of evaporator, vapour-liquid is through being sufficiently separated, and it is living into next effect evaporation that steam enters condenser condensation for liquid phase
Device used as heating medium, so as to realize that multiple-effect is operated, then by separation chamber discharged by liquid phase.
Existing falling film evaporator, feed liquid is typically to enter upper end at the direct charging aperture from the top of evaporator when feeding
Cavity, the through hole set through housing surface is separately flowed into heat exchanger tube, but the mode of entrance of this feed liquid often occurs material
Liquid can not be unevenly distributed over the situation in each heat exchanger tube, and then make film-formation result in heat exchanger tube poor, when feed liquid is serious even
There is " dry wall " phenomenon, so as to influence evaporation effect.
The content of the invention
To solve the above problems, the present invention provides one kind and effectively feed liquid can be evenly distributed in each heat exchanger tube, film forming
Stabilization, can obtain the falling film evaporator of good evaporation effect.
To achieve the above object, the technical solution adopted by the present invention is：A kind of falling film evaporator, including hollow housing, if
Upper perforated plate, lower perforated plate in housing upper and lower ends, are provided with heat exchanger tube, upper perforated plate and lower perforated plate table between upper perforated plate and lower perforated plate
Face is provided with the through hole connected with heat exchanger tube, and the upper end of upper perforated plate is provided with upper cover, and upper cover surface is communicated with to upper perforated plate
The charging aperture on surface, the lower end of lower perforated plate is provided with low head, and low head bottom is provided with discharging opening, the lower end of the housing
Side wall is provided with heating medium inlet, and the side wall of the upper end of housing is provided with Crude product input, is enclosed between the upper cover and upper perforated plate
It is set as sequentially being provided with feed space, guide shell, the first cloth liquid room, wherein the second cloth liquid room, feed space from top to bottom in cavity volume, cavity volume
Upper end connected with charging aperture, the lower end of feed space is communicated in guide shell by connecting tube, the guide shell, the first cloth liquid
Room, the second cloth liquid room are respectively four groups and are uniformly arranged in cavity volume, and the feed space is fixed on cavity volume upside by fixed column,
Feed space bottom is respectively arranged at two ends with four connecting tubes, and the connecting tube is respectively communicated to the center in guide shell, water conservancy diversion
Cylinder upper end is provided with overfall, and the first cloth liquid chamber surface is communicated with to the guide hole of the second cloth liquid room, the second cloth liquid room
Surface is communicated with to the mozzle on upper perforated plate surface.
Used as the materialization of such scheme, the through hole, for one group, is formed just with three by end points of through hole entrance center
Triangle, the die of the mozzle encloses the equilateral triangle for setting with the through hole and is centrally located on same vertical axis.
As the materialization of such scheme, the bottom surface of the position higher than the second cloth liquid room of the mozzle.
Used as the materialization of such scheme, the upper end of the guide shell overfall is provided with wedge angle.
Used as the materialization of such scheme, the upper end of the upper cover is provided with mouth of showing on trial.
Used as the materialization of such scheme, the housing includes upper shell, lower house, leads to wherein between upper shell and lower house
Cross expansion joint connection.
The beneficial effects of the present invention are：The present invention by be respectively provided with from top to bottom in cavity volume feed space, four groups lead
Feed liquid is uniformly distributed to four by flow cartridge, the first cloth liquid room, the second cloth liquid room, feed liquid respectively by the connecting tube of feed space lower end
In individual guide shell, feed liquid by after guide shell overflow, then by the repeated dispensing of first, second cloth liquid room, can be effectively
Feed liquid is evenly dispersed in every heat exchanger tube, film-formation result of the feed liquid in heat exchanger tube is improved, with heat exchange efficiency is high, liquid
Low, the less scaling advantage of body circulation amount.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the partial enlarged drawing of A in Fig. 1；
Fig. 3 is the location diagram of mozzle and through hole.
Drawing reference numeral explanation：1- housings；11- upper perforated plates；111- through holes；12- lower perforated plates；13- heat exchanger tubes；14- upper covers；
141- charging apertures；142- shows on trial mouth；15- low heads；151- discharging openings；16- heating medium inlets；17- Crude product inputs；
18- expansion joints；2- cavity volumes；21- feed spaces；211- fixed columns；212- connecting tubes；22- guide shells；221- overfalls；222- points
Angle；23- the first cloth liquid room；231- guide holes；24- the second cloth liquid room；241- mozzles.
Specific embodiment
Refer to shown in Fig. 1-3, it is of the invention on a kind of falling film evaporator, including hollow housing 1, located at housing about 1
The upper perforated plate 11 at two ends, lower perforated plate 12, are provided with heat exchanger tube 13, upper perforated plate 11 and lower perforated plate between upper perforated plate 11 and lower perforated plate 12
12 surfaces are provided with the through hole 111 connected with heat exchanger tube 13, and the upper end of upper perforated plate 11 is provided with upper cover 14, and the surface of upper cover 14 sets
The lower end for having the charging aperture 141 for being communicated to the surface of upper perforated plate 11, lower perforated plate 12 is provided with low head 15, and the bottom of low head 15 is set
The side wall for having discharging opening 151, the lower end of the housing 1 is provided with heating medium inlet 16, and the side wall of the upper end of housing 1 is provided with heating
Media outlet 17, is enclosed between the upper cover 14 and upper perforated plate 11 and is set as cavity volume 2, and feed space is sequentially provided with from top to bottom in cavity volume 2
21st, guide shell 22, the first cloth liquid room 23, the second cloth liquid room 24, the wherein upper end of feed space 21 connect with charging aperture 141, charging
The lower end of room 21 is communicated in guide shell 22 by connecting tube 212, the guide shell 22, the first cloth liquid room 23, the second cloth liquid room
24 are respectively four groups and are uniformly arranged in cavity volume 2, and the feed space 21 is fixed on the upside of cavity volume 2, charging by fixed column 211
The bottom of room 21 is respectively arranged at two ends with four connecting tubes 212, and the connecting tube 212 is respectively communicated to the center in guide shell 22
Place, the upper end of guide shell 22 is provided with overfall 221, and the surface of the first cloth liquid room 23 is communicated with to the guide hole of the second cloth liquid room 24
231, the surface of the second cloth liquid room 24 is communicated with to the mozzle 241 on the surface of upper perforated plate 11.
Compared to existing technology, the present invention is respectively provided with 21, four groups of water conservancy diversion of feed space from top to bottom by cavity volume 2
The 22, first cloth liquid room 23 of cylinder, the second cloth liquid room 24, feed liquid are uniform by feed liquid respectively by the connecting tube 212 of the lower end of feed space 21
Be assigned in four guide shells 22, feed liquid by after the overflow of guide shell 22, then by first, second cloth liquid room 23,24
, effectively can be evenly dispersed to feed liquid in every heat exchanger tube 13 by repeated dispensing, improve feed liquid in heat exchanger tube 13 into
Film effect, has the advantages that heat exchange efficiency is high, liquid circulation amount is low, less scaling.
As the materialization of such scheme, the through hole 111 with three for one group, with the entrance center of through hole 111 as end points
Formed equilateral triangle, the die of the mozzle 241 enclosed with the through hole 111 equilateral triangle for setting be centrally located at it is same vertically
On axis.
Using such scheme, because mozzle 241 is located at the center that the equilateral triangle for setting is enclosed by through hole 111, energy
Enough make each mozzle 241 for three feed flows of heat exchanger tube 13, and liquid supply rate is identical, it is ensured that being evenly distributed to for feed liquid is every
In one heat exchanger tube 13.
As the materialization of such scheme, the bottom surface of the position higher than the second cloth liquid room 24 of the mozzle 241.
Using such scheme, the bottom surface of the height higher than the second cloth liquid room 24 of mozzle 241, feed liquid is from the first cloth liquid room 23
When flowing through the second cloth liquid room 24, feed liquid is first gathered to higher than that could enter mozzle 241 behind the surface of mozzle 241, can effectively be protected
Card feed liquid is uniformly distributed in each mozzle 241.
Used as the materialization of such scheme, the upper end of the overflow 221 of the guide shell 22 is provided with wedge angle 222.
Using such scheme, wedge angle 222 is provided with by the upper end of overfall 221, is used to eliminate the foam in feed liquid, prevented
The frothy feed liquid of stop-band enters heat exchanger tube 13 and influences film-formation result.
Used as the materialization of such scheme, the upper end of the upper cover 14 is provided with mouth 142 of showing on trial.
Using such scheme, by being provided with mouth 142 of showing on trial, the ruuning situation in observable housing 1.
Used as the materialization of such scheme, the housing 1 includes upper shell, lower house, wherein between upper shell and lower house
Connected by expansion joint 18.
Using such scheme, upper shell and lower house are set to by by housing 1, and are connected using expansion joint 18, can had
Effect prevents from, because of the excessive generation stress of the internal-external temperature difference of housing 1, causing the feed liquid affected by force in housing 1 in heat exchanger tube 13 and reducing
Film-formation result, keeps the stability of housing 1.
Operation principle of the invention：First, feed liquid enters feed space 21 by the charging aperture 141 of 14 upper ends of upper sealing, with
It is flow to respectively in four guide shells 22 of lower end by the connecting tube 212 of the lower end of feed space 21, feed liquid is full in the accumulation of guide shell 22
The first cloth liquid room 23 is spilled over to from overfall 221 afterwards, then the second cloth liquid room is flowed into from the guide hole 231 on the surface of the first cloth liquid room 23
24, when feed liquid flows into the second cloth liquid room 24 from the first cloth liquid room 23, feed liquid is gathered to higher than flowing into water conservancy diversion behind the surface of mozzle 241
Pipe 241, then the surface of upper perforated plate 11 is flow to by mozzle 241, then heat exchanger tube is entered by the through hole 111 on the surface of upper perforated plate 11
13, because through hole 111 presses equilateral triangle arrangement, mozzle 241 just to the center of the equilateral triangle so that feed liquid reaches averagely
It is assigned to the purpose of each heat exchanger tube 13.
Meanwhile, heat source stream is passed through toward heating medium inlet 16, heat exchange is carried out with the feed liquid in heat exchanger tube 13, thermal source steams
Vapour is discharged from Crude product input 17, and feed liquid under gravity, is flowed from top to bottom with membranaceous, under the lower end of housing 1
Gas-liquid separation is carried out between tube sheet 12 and low head 15, concentrate flows out from discharging opening 151.
Embodiment of above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is entered
Row is limited, and on the premise of design spirit of the present invention is not departed from, this area ordinary skill technical staff is to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of falling film evaporator, including hollow housing, upper perforated plate, lower perforated plate located at housing upper and lower ends, upper perforated plate is with
Heat exchanger tube is provided between tube sheet, upper perforated plate and down tube plate surface are provided with the through hole connected with heat exchanger tube, and the upper end of upper perforated plate sets
Upper cover is equipped with, upper cover surface is communicated with to the charging aperture on upper perforated plate surface, and the lower end of lower perforated plate is provided with low head, under
End socket bottom is provided with discharging opening, and the side wall of the lower end of the housing is provided with heating medium inlet, and the side wall of the upper end of housing sets
There is Crude product input, it is characterised in that：Enclosed between upper cover and upper perforated plate and be set as cavity volume, be sequentially provided with from top to bottom in cavity volume into
Material room, guide shell, the first cloth liquid room, the second cloth liquid room, the upper end of wherein feed space connect with charging aperture, and the lower end of feed space leads to
Cross connecting tube to be communicated in guide shell, the guide shell, the first cloth liquid room, the second cloth liquid room are respectively four groups and are uniformly arranged on
In cavity volume, the feed space is fixed on cavity volume upside by fixed column, and feed space bottom is respectively arranged at two ends with four connecting tubes,
The connecting tube is respectively communicated to the center in guide shell, and guide shell upper end is provided with overfall, the first cloth liquid chamber surface
It is communicated with to the guide hole of the second cloth liquid room, the second cloth liquid chamber surface is communicated with to the mozzle on upper perforated plate surface.
2. falling film evaporator according to claim 1, it is characterised in that the through hole, for a group, is entered with three with through hole
Mouth center is that end points forms equilateral triangle, and the die of the mozzle encloses the equilateral triangle for setting with the through hole and is centrally located at together
On one vertical axis.
3. falling film evaporator according to claim 1, it is characterised in that the position of the mozzle is higher than the second cloth liquid room
Bottom surface.
4. falling film evaporator according to claim 1, it is characterised in that the upper end of the guide shell overfall is provided with point
Angle.
5. falling film evaporator according to claim 1, it is characterised in that the upper end of the upper cover is provided with mouth of showing on trial.
6. falling film evaporator according to claim 1, it is characterised in that the housing includes upper shell, lower house, wherein
Connected by expansion joint between upper shell and lower house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925323.6A CN105396311B (en) | 2015-12-14 | 2015-12-14 | Falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925323.6A CN105396311B (en) | 2015-12-14 | 2015-12-14 | Falling film evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105396311A CN105396311A (en) | 2016-03-16 |
| CN105396311B true CN105396311B (en) | 2017-05-31 |
Family
ID=55462268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510925323.6A Active CN105396311B (en) | 2015-12-14 | 2015-12-14 | Falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105396311B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854323A (en) * | 2016-05-09 | 2016-08-17 | 覃景壮 | Falling-film evaporator balance device |
| CN107349614A (en) * | 2016-06-24 | 2017-11-17 | 湖南力健机械有限公司 | One kind rotation is without coking continuous cracking carbonized film evaporation equipment |
| CN105964003B (en) * | 2016-07-11 | 2018-02-13 | 南通星球石墨设备有限公司 | Liquid distributor under a kind of auxiliary based on hydrochloric acid stripper |
| CN105964016B (en) * | 2016-07-11 | 2018-02-13 | 南通星球石墨设备有限公司 | A kind of hydrochloric acid stripper |
| CN108147488A (en) * | 2017-12-29 | 2018-06-12 | 天津梓煊浩柏科技有限公司 | Rubber accelerator CBS waste water purifying equipment |
| CN114146672A (en) * | 2021-12-10 | 2022-03-08 | 河北冶金建设集团有限公司 | Falling film reactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3419170C1 (en) * | 1984-05-23 | 1985-09-19 | Fried. Krupp Gmbh, 4300 Essen | Feed device for an apparatus for uniform liquid distribution in falling film evaporators |
| CN201949664U (en) * | 2010-12-22 | 2011-08-31 | 山东省鲁洲食品集团有限公司 | Distributor of falling film evaporator |
| CN202724719U (en) * | 2012-07-16 | 2013-02-13 | 安徽省化工设计院 | Liquid distribution device in falling film evaporator |
| CN204815721U (en) * | 2015-07-29 | 2015-12-02 | 石家庄鼎威化工设备工程有限公司 | A divide tubular multilayer liquid distributor for falling liquid film heat exchanger |
| CN205235432U (en) * | 2015-12-14 | 2016-05-18 | 深圳市瑞升华科技股份有限公司 | Falling film evaporator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130055755A1 (en) * | 2011-08-31 | 2013-03-07 | Basf Se | Distributor device for distributing liquid to tubes of a tube-bundle apparatus, and also tube-bundle apparatus, in particular falling-film evaporator |
-
2015
- 2015-12-14 CN CN201510925323.6A patent/CN105396311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3419170C1 (en) * | 1984-05-23 | 1985-09-19 | Fried. Krupp Gmbh, 4300 Essen | Feed device for an apparatus for uniform liquid distribution in falling film evaporators |
| CN201949664U (en) * | 2010-12-22 | 2011-08-31 | 山东省鲁洲食品集团有限公司 | Distributor of falling film evaporator |
| CN202724719U (en) * | 2012-07-16 | 2013-02-13 | 安徽省化工设计院 | Liquid distribution device in falling film evaporator |
| CN204815721U (en) * | 2015-07-29 | 2015-12-02 | 石家庄鼎威化工设备工程有限公司 | A divide tubular multilayer liquid distributor for falling liquid film heat exchanger |
| CN205235432U (en) * | 2015-12-14 | 2016-05-18 | 深圳市瑞升华科技股份有限公司 | Falling film evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105396311A (en) | 2016-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105396311B (en) | Falling film evaporator | |
| CN102657948B (en) | Liquid distributor and vertical tube falling film evaporator comprising same | |
| US4762171A (en) | Plate type evaporator | |
| CN203971422U (en) | A kind of device that is applicable to the separation of emulsion internal solvent | |
| CN206315497U (en) | A kind of cooling driers air cleaner | |
| CN205235432U (en) | Falling film evaporator | |
| CN207324109U (en) | A kind of falling film evaporation device | |
| CN208611826U (en) | Force explosive evaporation device | |
| CN209689424U (en) | Flat pipes of heat exchanger and heat exchanger with it | |
| CN206369497U (en) | Heat exchanger | |
| CN209790898U (en) | Horizontal pipe falling film evaporator | |
| CN208205842U (en) | A kind of shell-and-tube cooler | |
| CN207769231U (en) | A kind of liquid resin falling film evaporator | |
| CN108469184A (en) | A kind of shell-and-tube cooler | |
| CN107866087A (en) | A kind of falling film evaporator | |
| CN214485682U (en) | Falling film evaporation device | |
| CN212141514U (en) | Heat transfer plate type falling film concentration evaporator | |
| CN207076146U (en) | A kind of climbing film evaporator for traditional Chinese drug inspissation system | |
| CN204219807U (en) | Falling film evaporator | |
| CN109126167B (en) | EO concentration tower structure | |
| CN208108857U (en) | A kind of phosphorus trichloride condenser | |
| CN207153133U (en) | A kind of falling film evaporator | |
| CN207507038U (en) | A kind of falling film evaporator with cleaning device | |
| CN205995062U (en) | A kind of annular bellows tube falling film evaporator for pharmaceuticals industry | |
| CN207703068U (en) | A kind of tubular heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |