CN102266675A - Shell-and-tube falling film evaporator - Google Patents
Shell-and-tube falling film evaporator Download PDFInfo
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- CN102266675A CN102266675A CN2011102069953A CN201110206995A CN102266675A CN 102266675 A CN102266675 A CN 102266675A CN 2011102069953 A CN2011102069953 A CN 2011102069953A CN 201110206995 A CN201110206995 A CN 201110206995A CN 102266675 A CN102266675 A CN 102266675A
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Abstract
The invention discloses a shell-and-tube falling film evaporator and belongs to the technical field of biological pharmaceutical chemical equipment. The shell-and-tube falling film evaporator comprises a tank body provided with a steam lead-in port, a steam condensation solution lead-out port, a secondary steam lead-out port and a concentrated solution lead-out port, a tank cover arranged on the upper part of the tank body, a group of falling film evaporation tubes arranged in the tank body, and solution distributors arranged on orifice parts of the falling film evaporation tubes, and is characterized in that: each solution distributor comprises a first columnar section and a second columnar section; a group of solution distribution holes are formed in the first columnar section; a solution guide inclined surface is formed on the end face of one end of the second columnar section; the diameter of the second columnar section is smaller than that of the first columnar section; a solution distributor flange edge extends out of the rim part of the top of the first columnar section; the solution distributor flange edge is matched with the orifice of the corresponding falling film evaporation tube; and a solution gap is reserved between the second columnar section and the evaporation tube inner wall of the corresponding falling film evaporation tube. The shell-and-tube falling film evaporator has the advantages that: liquid films are kept to be uniform so as to improve an evaporation effect of the evaporation tubes, the evaporation tubes cannot be damaged, and the whole solution distributors and the evaporation tubes are quite convenient to match.
Description
Technical field
The invention belongs to the biology,drug and chemical industry equipment technical field, be specifically related to a kind of shell-and-tube falling film evaporator
Background technology
The shell-and-tube falling film evaporator is commonly called falling film evaporator, and then be called thin film evaporator, the evaporimeter of this structure can be seen in disclosed Chinese patent literature in a large number, slightly with exemplify as the CN201618431U(falling film evaporator), CN101954195A(falling film evaporator) and CN102107091A(multi-stage, efficient horizontal tube falling film evaporation device).
Typical shell-and-tube falling film evaporator is open by utility model patent Granted publication CN201880383U and CN201840900U, in the background technology of CN201880383U, point out, liquid distributor (also claiming distributor) is the structural member of a key in the shell-and-tube falling film evaporator, the structure difference of liquid distributor, the heat exchange efficiency of pairing shell-and-tube falling film evaporator is also different, and this patent structure to known liquid distributor in background technology has been carried out labor: the structure of the liquid distributor of tube adaptor type structure is the simplest, only pipe joint need be welded on the heat exchanger tube and get final product, the whether even of thickness of liquid film depends on when pipe joint is welded and the concentricity of heat exchanger tube, but, when some welded pipe joint, easily undermine heat exchanger tube, make heat exchanger tube crackle occur evaporimeter is broken down; The liquid distributor of sawtooth pattern structure is difficult to ensure the uniformity of thickness of liquid film, and the evaporimeter heat exchange efficiency is low; The liquid distributor complex structure of vice type structure, thickness of liquid film is more even, but stops up easily.The technical scheme that this CN201880383U provides is that the liquid distributor point is welded on the liquid distributor head on the integral slab, more properly say, one end (lower end) of the liquid distributor tube head of liquid distributor is probeed in the heat exchanger tube, and the other end (upper end) point of liquid distributor tube head is welded on the integral slab (patent is called fixed head).Though the shell-and-tube falling film evaporator of this kind structure can avoid directly undermining with the heat exchanger tube welding because of liquid distributor the generation of the situation of heat exchanger tube, make and install ten minutes and bother.Especially because the self structure of liquid distributor still shows as the tube head type, therefore the material full packages appears in the heat exchanger tube that can occur in actual use having in one group of heat exchanger tube (also claiming evaporation tube), and lack material in the heat exchanger tube that has and even lack material, influence the evaporation effect of evaporimeter.
In view of above-mentioned prior art, be necessary to be improved, for this reason, the applicant has made good try, and technical scheme described below produces under this background
Summary of the invention
Task of the present invention was to provide a kind of both having need not to use and avoid undermining evaporation tube with the evaporation tube welding, helped again to ensure that material is uniformly distributed in all evapn pipe and uses the shell-and-tube falling film evaporator that improves whole evaporation effect.
Task of the present invention is finished like this, a kind of shell-and-tube falling film evaporator, comprise that having connected steam introduces interface, steam condensate is drawn interface, indirect steam is drawn the tank body that interface and concentrate are drawn interface, be configured in the cover that material is introduced interface that has on tank body top, be arranged on one group of falling film evaporation pipe in the tank body by means of upper spacer and lower clapboard and be configured in the liquid distributor at position of the evaporation tube mouth of pipe of each falling film evaporation pipe, characteristics are: that described liquid distributor comprises the first segment shell of column and is positioned at first segment shell of column below and constitute the second segmented column section of integrative-structure with the first segment shell of column, spaced apartly on described first segment shell of column be provided with one group and be used for the liquid distributing hole that material that will come from described material introduces interface causes the second segmented column section, and on an end end face of first segment shell of column, be formed with a drain inclined-plane that is used to accept come from the material of described liquid distributing hole in the second segmented column section, the diameter of the second segmented column section is littler than the diameter of first segment shell of column, wherein: the edge expansion at the top of first segment shell of column is provided with a liquid distributor flange, this liquid distributor flange matches with the evaporation tube mouth of pipe of described falling film evaporation pipe, is used for the liquid crack passed through for the liquid material that described drain inclined-plane is wandered and maintain between the evaporation tube inwall of the second segmented column section and falling film evaporation pipe.
In a specific embodiment of the present invention, described one group of liquid distributing hole is equidistantly spaced and is located on the described first segment shell of column.
In another specific embodiment of the present invention, the internal diameter of the diameter of described first segment shell of column and described falling film evaporation pipe is suitable.
In another specific embodiment of the present invention, the quantity of described one group of liquid distributing hole is three to six.
In another specific embodiment of the present invention, constitute one at the position, edge of the bottom of the described second segmented column section and be used to the drainage inclined-plane that stops the center position of liquid material to flow towards the bottom surface of the second segmented column section.
Technical scheme provided by the invention is owing to the version that liquid distributor is designed to by first, second segmented column section combination with one another, and on the first segment shell of column, offer liquid distributing hole, and become the drain inclined-plane towards the surface design of an end of first segment shell of column in the second segmented column section, thereby, by liquid distributing hole the liquid material is caused the drain inclined-plane, by the drain inclined-plane liquid material is imported the liquid crack, thereby can ensure that liquid film evenly uses the evaporation effect of improving evaporation tube; Owing to abandoned in the prior art liquid distributor and evaporation tube spot-welded on, so can not undermine evaporation tube, and whole liquid distributor and evaporation tube connect very convenient.
Description of drawings
Fig. 1 is the embodiments of the invention structure chart.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the enlarged drawing of the present invention's liquid distributor illustrated in figures 1 and 2.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but to the description of embodiment all is not restriction to the present invention program, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
See also Fig. 1 and Fig. 2, provided a tank body 1, this tank body 1 also can be referred to as cylindrical shell, on the sidewall on the top of tank body 1, be connected with a steam and introduce interface 11, to draw interface 12(be that condensed water is drawn interface and be connected with a steam condensate on the sidewall of the bottom of tank body 1), this steam condensate is drawn interface 12 and is introduced interface 11 with steam and keep angular dependence.On the wall body of the following side of tank body 1, be connected with an indirect steam and draw interface 13, draw interface 14 and the lower curtate of tank body 1 is connected with a concentrate.
One cover 2 both can use bolt also can use quick snap close to match with the uncovered position on the top of tank body 1, was connected with a material in the central authorities of this cover 2 and introduced interface 21.
By illustrated in figures 1 and 2, in the cavity volume of tank body 1, be fixed with one group of falling film evaporation pipe 3 by means of upper spacer 31 and lower clapboard 32, the upper end of each falling film evaporation pipe 3 and upper spacer 31 is fixing, and the lower end is fixed with lower clapboard 32, upper and lower dividing plate 31,32 all with the cavity volume inner wall sealing solid welding of tank body 1.Wherein: the zone between the upper and lower dividing plate 31,32 also is the falling film heating chamber 15 that the zone at falling film evaporation pipe 3 places constitutes tank body 1, and aforesaid steam introducing interface 11 and steam condensate are drawn interface 12 and communicated with this falling film heating chamber 15; Zone between the bottom of lower clapboard 32 and tank body 1 constitutes the concentrated sap cavity 16 of tank body 1, and aforesaid indirect steam is drawn interface 13 and should be concentrated sap cavity 16 and communicated, and aforesaid concentrate is drawn interface 14 and communicated with concentrated sap cavity 16.Indirect steam above-mentioned is the steam that comes from concentrate.Preferred scheme, this tank body 1 is equipped with a tank body seat 17 before also can be.
Respectively be equipped with the liquid distributor 4 of a structure of the present invention at the position of the evaporation tube mouth of pipe 33 of aforesaid one group of falling film evaporation pipe 3.
The aforementioned liquid distributor 4 that provides as the present invention program's technical essential comprises first segment shell of column 41 and is positioned at first segment shell of column 41 and constitute the diameter second segmented column section 42 littler than the diameter of first segment shell of column 41 that one is an integral production, between first, second segmented column section 41,42 in the narrow neck that contracts 43 connect.With the equidistant spaced one group of liquid distributing hole 411 that is provided with, the material that will be come from material introducing interface 21 by this group liquid distributing hole 411 promptly guides towards the second segmented column section 42 towards the below on first segment shell of column 41.Equidistant intervals recited above is meant the circumferencial direction equidistant intervals around first segment shell of column 41, and the quantity of one group of liquid distributing hole 411 is preferably three to six, present embodiment is selected three, be separated by 120 ° at the circumferencial direction of first segment shell of column 41 each other, shown in figure, each liquid distributing hole 411 connects to the lower surface from the upper surface of first segment shell of column 41.Again, expand in the edge at the top of first segment shell of column 41 and to be provided with the diameter liquid distributor flange 412 bigger than the diameter of first segment shell of column 41, with cooperating of the aforesaid evaporation tube mouth of pipe 33 liquid distributor 4 of the present invention is placed on the falling film evaporation pipe 3 by this liquid distributor flange 412, and the diameter of first segment shell of column 41 is suitable just as the inwall of gag and falling film evaporation pipe 3 just.Be formed with a drain inclined-plane 421 in the second segmented column section 42 on an end end face of first segment shell of column 41, shown in figure, drain inclined-plane 421 is from second outward-dipping from the center of segmented column section 42, and inclined degree is preferably 20-50 °, and present embodiment is 45 °.The material that comes from aforesaid liquid distributing hole 411 drops down onto in drain inclined-plane 421, wander downwards towards the post jamb of the second segmented column section 42 by drain inclined-plane 421, owing to maintain liquid crack 422 between the inwall of the second segmented column section, 42 post jambs and aforesaid falling film evaporation pipe 3, therefore the liquid material of wandering from drain inclined-plane 421 forms uniform liquid film between liquid crack 422, promptly forms film 34(Fig. 1 and show on the inwall of falling film evaporation pipe 3).Because the diameter of aforesaid first segment shell of column 41 is bigger than the second segmented column section 42, that is to say first segment shell of column 41 just and the internal diameter of the evaporation tube mouth of pipe 33 of falling film evaporation pipe 3 adapt, therefore, whole liquid distributor 4 is matched as gag with falling film evaporation pipe 3, so install very convenient.
Flow towards the center position of the bottom surface of the second segmented column section 42 when arriving at the bottom of the second segmented column section 42 for fear of the liquid material of wandering downwards along the wall body of the second segmented column section 42, because constitute a circle drainage inclined-plane 423 in the edge of the bottom of the second segmented column section 42, this drainage inclined-plane 423 plays the effect of the draining line (also claiming drip) just as the building eaves.
Because the operation principle of shell-and-tube falling film evaporator belongs to known technology, for example therefore existing detailed description in the publication document that is exemplified in the above by the applicant is no longer given unnecessary details
Claims (5)
1. shell-and-tube falling film evaporator, comprise that having connected steam introduces interface (11), steam condensate is drawn interface (12), indirect steam is drawn the tank body (1) that interface (13) and concentrate are drawn interface (14), be configured in the cover (2) that material is introduced interface (21) that has on tank body (1) top, by means of upper spacer (31) and lower clapboard (32) and be arranged on the one group of falling film evaporation pipe (3) in the tank body (1) and be configured in the liquid distributor (4) at position of the evaporation tube mouth of pipe (33) of each falling film evaporation pipe (3), it is characterized in that: that described liquid distributor (4) comprises first segment shell of column (41) and is positioned at first segment shell of column (41) below and constitute the second segmented column section (42) of integrative-structure with first segment shell of column (41), go up at described first segment shell of column (41) and spaced apartly to be provided with one group and to be used for to come from described material and to introduce the liquid distributing hole (411) that the material of interface (21) causes the second segmented column section (42), be used for the drain inclined-plane (421) that acceptance comes from the material of described liquid distributing hole (411) and on an end end face of first segment shell of column (41), be formed with one in the second segmented column section (42), the diameter of the second segmented column section (42) is littler than the diameter of first segment shell of column (41), wherein: the edge expansion at the top of first segment shell of column (41) is provided with a liquid distributor flange (412), this liquid distributor flange (412) matches with the evaporation tube mouth of pipe (33) of described falling film evaporation pipe (3), is used for the liquid crack (422) passed through for the liquid material wandered of described drain inclined-plane (421) and maintain between the evaporation tube inwall of the second segmented column section (42) and falling film evaporation pipe (3).
2. shell-and-tube falling film evaporator according to claim 1 is characterized in that described one group of liquid distributing hole (411) is equidistantly spaced to be located on the described first segment shell of column (41).
3. shell-and-tube falling film evaporator according to claim 1 is characterized in that the internal diameter of the diameter of described first segment shell of column (4) and described falling film evaporation pipe (3) is suitable.
4. shell-and-tube falling film evaporator according to claim 1 and 2, the quantity that it is characterized in that described one group of liquid distributing hole (411) are three to six.
5. shell-and-tube falling film evaporator according to claim 1 is characterized in that constituting at the position, edge of the bottom of the described second segmented column section (42) one and is used to the drainage inclined-plane (423) that stops the center position of liquid material towards the bottom surface of the second segmented column section (42) to flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102069953A CN102266675A (en) | 2011-07-22 | 2011-07-22 | Shell-and-tube falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102069953A CN102266675A (en) | 2011-07-22 | 2011-07-22 | Shell-and-tube falling film evaporator |
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| Publication Number | Publication Date |
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| CN102266675A true CN102266675A (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102069953A Pending CN102266675A (en) | 2011-07-22 | 2011-07-22 | Shell-and-tube falling film evaporator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961883A (en) * | 2012-11-14 | 2013-03-13 | 重庆市三耕储环保科技有限公司 | Falling film evaporator |
| CN104043258A (en) * | 2014-06-25 | 2014-09-17 | 江苏中圣高科技产业有限公司 | Liquid distributor for evaporator |
| CN105126368A (en) * | 2015-07-27 | 2015-12-09 | 上海中科易成新材料技术有限公司 | Falling-film evaporator |
| 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 |
| CN108862438A (en) * | 2018-09-11 | 2018-11-23 | 首航洁能科技有限公司 | A kind of multiple-effect evaporation concentration systems of brine waste |
| CN111701260A (en) * | 2020-06-20 | 2020-09-25 | 张晓卫 | Automatic falling film evaporation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849148A (en) * | 1993-08-12 | 1998-12-15 | Ancon Chemical Pty. Ltd. | Distributor plate and evaporator |
| CN2566924Y (en) * | 2002-08-20 | 2003-08-20 | 束松坡 | Cyclone distribution film forming apparatus |
| CN201164741Y (en) * | 2008-01-09 | 2008-12-17 | 项文远 | Device for coating film of material for down-flow evaporator |
| CN201291074Y (en) * | 2008-11-10 | 2009-08-19 | 昆明克林轻工机械有限责任公司 | Liquid material distributor |
| CN202179862U (en) * | 2011-07-22 | 2012-04-04 | 常熟市龙宇化工设备有限公司 | Shell-and-tube type falling film evaporator |
-
2011
- 2011-07-22 CN CN2011102069953A patent/CN102266675A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849148A (en) * | 1993-08-12 | 1998-12-15 | Ancon Chemical Pty. Ltd. | Distributor plate and evaporator |
| CN2566924Y (en) * | 2002-08-20 | 2003-08-20 | 束松坡 | Cyclone distribution film forming apparatus |
| CN201164741Y (en) * | 2008-01-09 | 2008-12-17 | 项文远 | Device for coating film of material for down-flow evaporator |
| CN201291074Y (en) * | 2008-11-10 | 2009-08-19 | 昆明克林轻工机械有限责任公司 | Liquid material distributor |
| CN202179862U (en) * | 2011-07-22 | 2012-04-04 | 常熟市龙宇化工设备有限公司 | Shell-and-tube type falling film evaporator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961883A (en) * | 2012-11-14 | 2013-03-13 | 重庆市三耕储环保科技有限公司 | Falling film evaporator |
| CN102961883B (en) * | 2012-11-14 | 2014-11-26 | 重庆市三耕储环保科技有限公司 | Falling film evaporator |
| CN104043258A (en) * | 2014-06-25 | 2014-09-17 | 江苏中圣高科技产业有限公司 | Liquid distributor for evaporator |
| CN105126368A (en) * | 2015-07-27 | 2015-12-09 | 上海中科易成新材料技术有限公司 | Falling-film evaporator |
| 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 |
| CN108862438A (en) * | 2018-09-11 | 2018-11-23 | 首航洁能科技有限公司 | A kind of multiple-effect evaporation concentration systems of brine waste |
| CN111701260A (en) * | 2020-06-20 | 2020-09-25 | 张晓卫 | Automatic falling film evaporation device |
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Application publication date: 20111207 |