CN104474729A - Double-effect concentrator with forced circulation - Google Patents

Double-effect concentrator with forced circulation Download PDF

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Publication number
CN104474729A
CN104474729A CN201410755479.XA CN201410755479A CN104474729A CN 104474729 A CN104474729 A CN 104474729A CN 201410755479 A CN201410755479 A CN 201410755479A CN 104474729 A CN104474729 A CN 104474729A
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CN
China
Prior art keywords
cylindrical shell
heating cylinder
pipeline
compression
effect concentrator
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.)
Pending
Application number
CN201410755479.XA
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Chinese (zh)
Inventor
周旻晖
朱辉富
范琨海
虞有海
商晓娟
段桂清
王化鹤
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KUNCHUAN ELECTRONIC EQUIPMENT CO Ltd YUNNAN
Original Assignee
KUNCHUAN ELECTRONIC EQUIPMENT CO Ltd YUNNAN
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Priority to CN201410755479.XA priority Critical patent/CN104474729A/en
Publication of CN104474729A publication Critical patent/CN104474729A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a double-effect concentrator with forced circulation. The double-effect concentrator is composed of two parts, including a first-effect concentrator and a second-effect concentrator, wherein the two-effect concentrator respectively comprises heating cylinders (2) and (2'), evaporating cylinders (6) and (6'), pressurizing systems (10) and (10'), and pipelines (12) and (12'); the evaporating cylinders (6) and (6') are connected with the heating cylinders; the pressurizing systems (10) and (10') are respectively connected with the lower ends of the heating cylinders, and the lower ends of the evaporating cylinders through pipelines (9) and (9'); and the upper ends of the heating cylinders(2) and (2') are connected with the evaporating cylinders (6) and (6'). According to the double-effect concentrator with forced circulation, improvement can be carried out on the basis of a traditional heat exchange structure by adopting structural forms of the heating cylinders; the heating cylinder parts of equipment do not need to be changed; and the heat exchange area is fixed, so that the improvement cost is greatly reduced under the condition that invariable production capacity is ensured.

Description

With the dual-effect concentrator of forced circulation
Technical field
The present invention relates to dual-effect concentrator technical field of structures.
Background technology
All kinds of dual-effect concentrators in the market as shown in figure, in an effect is concentrated, adopt heat exchanger 2 to heat the solution by its tube side, vacuumize in evaporation tank 6 and 6 ' simultaneously, heat exchanger 2 and 2 ' interior solution are sucked evaporation tank 6 and 6 ' upper end by evaporation tank 6 and 6 ' interior formation negative pressure, and the solution of evaporation tank 6 and 6 ' lower end enters in heat exchanger 2 and 2 ' due to the effect of vacuum and the temperature difference.After solution enters heat exchanger 2 and 2 ' from evaporation tank 6 and 6 ', entered evaporation tank 6 and 6 ' from upper end by heat exchanger 2 and 2 ' heating, the moisture in solution, by fast vaporizing, forms steam, circulating and evaporating like this.Continue to supplement material solution after the liquid level in an effect evaporation tank is lower than setting height.Two effects are concentrated imitate concentration principle with one and structure identical.The steam that one effect produces is pumped to enter in the heat exchanger 2 ' that two effects concentrate as the thermal source that two effects are concentrated and heats the solution by heat exchanger tube 5 '.Two effects form identical with an efficient construction.By the solution after heating because the effect of temperature difference and the middle negative pressure of vacuum of evaporation tank 6 ' enters in evaporation tank 6 ', moisture in temperature official post solution is evaporated generation steam, reclaim after steam-condensation process after two effects, supplemented by the solution in an effect after the liquid level in two effect evaporation tanks is lower than setting height, circulating and evaporating like this, until the concentration of solution reaches the laggard row discharging of pre-provisioning request.
The vaporization cycle that economic benefits and social benefits concentrate in the market just relies on the temperature difference of the interior solution of heat exchanger 2 ' and the interior solution of evaporation tank 6 ' and the interior formation negative pressure of vacuum of evaporation tank 6 ' to promote circulation, and the flow velocity of solution in heating cylinder tubulation is comparatively slow, and evaporation efficiency is on the low side.On the other hand, because flow velocity is slower, solution is easy to the situation occurring fouling, need regularly clean, for the solution that part fouling condition is serious, only need the very short time, heat exchanger 2 ' just forms serious dirty layer with evaporation tank 6 ' is interior, will cause because of fouling the concentrated production capacity degradation that concentrates in several hours, affect production efficiency
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and reduce concentrated fouling, improve the dual-effect concentrator of band forced circulation of concentrate circulation and evaporation efficiency.
The object of the invention is to be achieved through the following technical solutions.
With the dual-effect concentrator of forced circulation, the present invention is characterised in that, comprise an effect inspissator and two imitate inspissator two part form; The steam produced after first effect is concentrated imitates concentrated thermal source as second; This two effects inspissator comprises heating cylinder, the evaporation tank be connected with described heating cylinder, the compression system that is connected by pipeline with described evaporation tank lower end with described heating cylinder lower end respectively, the pipeline that heating cylinder upper end is connected with evaporation tank respectively; Wherein:
Heating cylinder is made up of cylindrical shell, the tube sheet being positioned at described cylindrical shell internal upper part, the heat exchanger tube being located at inner barrel, the front-end pipe box being located at cylinder body bottom, the rear end header that is located at cylindrical shell top respectively; Heat exchanger tube two ends are each passed through tube sheet and are connected with Tubesheet Welding; Shell side is respectively equipped with steam inlet, condensation-water drain, tube side is respectively equipped with liquid entrance, medicine liquid outlet; Tube sheet and cylindrical shell adopt soldered connecing respectively; Cylindrical shell is connected with front-end pipe box and rear end header bolt respectively by two end flanges, and front-end pipe box is connected respectively by pipeline and exporting with compression system; Control valve is respectively arranged with in the middle of pipeline and compression system.
Compression system of the present invention adopts motor to be connected with force (forcing) pump.
Evaporation tank of the present invention by upper end end socket, cylindrical shell, lower end conical head is welded, and conical head is connected with heating cylinder 2 and 2 ' rear end header by pipeline respectively with cylindrical shell connecting portion top; Conical head lower end is connected with compression system respectively by pipeline.
The invention has the beneficial effects as follows, compared with prior art, the present invention has following characteristics.
Can force to promote solution to circulate at evaporation tank 6 with between 6 ' and heating cylinder 2 and 2 ', allow flow velocity accelerate, larger flow-disturbing layer can be formed in tubulation, reduce the scale formation of tubulation, simultaneously because flow velocity is very fast, certain souring can be formed to heating cylinder tubulation, greatly delay the time that fouling is formed, also just extend the cleaning frequency of equipment simultaneously, decrease wash number, save cleaning charge use, cost of labor, add the production time, improve production efficiency.
After increasing forced circulation, because flow velocity is accelerated, the coefficient of heat transfer increases, and evaporation efficiency is promoted on the original basis.The concentration of material in evaporation tank is more even simultaneously, improves the quality of product.The present invention adopt the version of heating cylinder can improve on the basis of traditional heat exchangers structure, do not need the heating cylinder part of more exchange device, heat exchange area is constant, when ensure production capacity constant greatly saved improvement cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that existing traditional economic benefits and social benefits concentrate;
Fig. 2 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 2, the dual-effect concentrator of band forced circulation, the present invention is characterised in that, comprises an effect inspissator and two and imitates inspissator two and partly form; The steam produced after first effect is concentrated imitates concentrated thermal source as second; This two effects inspissator comprise respectively heating cylinder 2 and 2 ', the evaporation tank 6 be connected with described heating cylinder and 6 ', respectively with described heating cylinder lower end and described evaporation tank lower end by pipeline 9 and the 9 ' compression system be connected 10 and 10 ', the pipeline 12 and 12 ' that heating cylinder 2 is connected with 6 ' with 2 ' upper end and evaporation tank 6; Wherein:
Heating cylinder 2 and 2 ' is made up of cylindrical shell 1 and 1 ', the tube sheet 3 and 3 ' being positioned at described cylindrical shell internal upper part, the heat exchanger tube 5 and 5 ' being located at inner barrel, the front-end pipe box 8 and 8 ' being located at cylinder body bottom, the rear end header 4 and 4 ' that is located at cylindrical shell top respectively; Heat exchanger tube 5 and 5 ' two ends are each passed through tube sheet 3 and 3 ' and solderedly to connect with tube sheet 3 and 3 '; Shell side is respectively equipped with steam inlet, condensation-water drain, tube side is respectively equipped with liquid entrance, medicine liquid outlet; Tube sheet 3 and 3 ' and cylindrical shell 1 and 1 ' adopt soldered connecing respectively; Cylindrical shell 1 with 1 ' respectively by two end flanges and front-end pipe box 8 and 8 ' and rear end header 4 and 4 ' be connected with bolt, front-end pipe box 8 and 8 ' to export with compression system 10 and 10 ' with 9 ' and 12 and 12 ' respectively by pipeline 9 and is connected; Pipeline 9 and 9 ' and compression system 10 and 10 ' centre be respectively arranged with control valve 11 and 11 '.
Compression system of the present invention adopts motor to be connected with force (forcing) pump.
Evaporation tank of the present invention 6 and 6 ' by upper end end socket, cylindrical shell, lower end conical head is welded, and conical head and cylindrical shell connecting portion top are connected with heating cylinder 2 and 2 ' rear end header 4 and 4 ' respectively by pipeline 12 and 12 '; Conical head lower end is connected with compression system 10 and 10 ' with 9 ' respectively by pipeline 9.
The present invention can be used for the extraction of Effective Component of Chinese Medicine, thin slice throwing solution, active ingredient such as fruit liquid and essence etc., concentrated.
Evaporation tank 6 upper end is imitated in the present invention one steam (vapor) outlet adapter 13, middle part have be connected with heating cylinder heated concentrate entrance, there is concentrated solution outlet lower end.
An effect of the present invention and the concentrated heating cylinder 2 and 2 ' of two effects after improving, become heating cylinder 2 and 2 ' to traditional heat exchangers, heat exchanger tube 5 and 5 ' and tube sheet 3 and 3 ' adopt and be welded to connect, tube sheet 3 and 3 ' and cylindrical shell 1 and 1 ' adopt and be welded to connect, front-end pipe box 8 and 8 ', rear end header 4 and 4 ' and cylindrical shell 1 and 1 ' adopt Flange joint, shell side medium is water vapour, and tube side medium is solution.On the basis of former heat exchanger, at front-end pipe box 8 and 8 ', rear end header 4 and 4 ' interior increase pass partition, the single tube journey flowed through by original solution is divided into multitube distance, add the distance that solution flows through in heat exchanger tube 5 and 5 ', decrease the sectional area that solution flows through, add solution when uniform pressure at heat exchanger tube 5 and 5 ' interior flow velocity.
The present invention one is imitated and the compression system 10 and 10 ' of two effects adopts motor and force (forcing) pump to combine, and compression system 10 and 10 ' are arranged on evaporation tank 6 and between 6 ' and heating cylinder 2 and 2 ', by compression system 10 and 10 ', the solution passed through is pressurizeed, the basis taking vacuum as initial thrust increases forced circulation thrust, solution circulation pressure can be allowed larger, flow velocity is faster, thus flow-disturbing is formed in heating cylinder tubulation, reduce scale formation, flow velocity can form certain souring to heating cylinder tubulation faster simultaneously, suitably can remove the dirty layer on tubulation, greatly delay the time that fouling is formed.

Claims (3)

1. be with the dual-effect concentrator of forced circulation, it is characterized in that, comprise an effect inspissator and two and imitate inspissator two and partly form; This two effects inspissator comprises heating cylinder (2) and (2 '), the evaporation tank (6) be connected with described heating cylinder and (6 ') respectively, passes through compression system (10) that pipeline (9) and (9 ') be connected and (10 ') with described heating cylinder lower end and described evaporation tank lower end respectively, the pipeline (12) that heating cylinder (2) and (2 ') upper end and evaporation tank (6) were connected with (6 ') and (12 '); Wherein:
Heating cylinder (2) and (2 ') respectively by cylindrical shell (1) and (1 '), the tube sheet (3) being positioned at described cylindrical shell internal upper part and (3 '), the heat exchanger tube (5) being located at inner barrel and (5 '), the front-end pipe box (8) being located at cylinder body bottom and (8) ', be located at the rear end header (4) at cylindrical shell top and (4 ') is formed; Heat exchanger tube (5) and (5 ') two ends are each passed through tube sheet (3) and (3 ') and solderedly connect with tube sheet (3) and (3 '); Shell side is respectively equipped with steam inlet, condensation-water drain, tube side is respectively equipped with liquid entrance, medicine liquid outlet; Tube sheet (3) and (3 ') adopt soldered connecing respectively with cylindrical shell (1) and (1 '); Cylindrical shell (1) and (1 ') are connected with bolt respectively by two end flanges and front-end pipe box (8) and (8 ') and rear end header (4) and (4 '), and front-end pipe box (8) and (8 ') to export with compression system (10) and (10 ') respectively by pipeline (9) and (9 ') and (12) and (12 ') and be connected; Control valve (11) and (11 ') is respectively arranged with compression system (10) and (10 ') centre at pipeline (9) and (9 ').
2. the dual-effect concentrator of band forced circulation according to claim 1, is characterized in that, described compression system adopts motor to be connected with force (forcing) pump.
3. the dual-effect concentrator of band forced circulation according to claim 1, it is characterized in that, evaporation tank (6) and (6 ') are by upper end end socket, cylindrical shell, lower end conical head is welded, and conical head and cylindrical shell connecting portion top were connected with heating cylinder (2) and (2 ') rear end header (4) and (4 ') respectively by pipeline (12) and (12 '); Conical head lower end is connected with compression system (10) and (10 ') with (9 ') respectively by pipeline (9).
CN201410755479.XA 2014-12-10 2014-12-10 Double-effect concentrator with forced circulation Pending CN104474729A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106267870A (en) * 2015-05-22 2017-01-04 佛山德众制药机械有限公司 A kind of closed circuit economic benefits and social benefits alcohol concentrates unit and method for concentration thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003043938A1 (en) * 2001-11-19 2003-05-30 Japan System Products Co., Ltd. Method and apparatus for producing zeolite continuously
CN201253494Y (en) * 2008-08-22 2009-06-10 肥城金塔机械有限公司 Waste clear-liquid secondary-steam evaporation device using drier
CN102008829A (en) * 2010-09-30 2011-04-13 温州市天龙轻工设备有限公司 Multi-effect vacuum forced circulation evaporation device and material concentrating method thereof
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003043938A1 (en) * 2001-11-19 2003-05-30 Japan System Products Co., Ltd. Method and apparatus for producing zeolite continuously
CN201253494Y (en) * 2008-08-22 2009-06-10 肥城金塔机械有限公司 Waste clear-liquid secondary-steam evaporation device using drier
CN102008829A (en) * 2010-09-30 2011-04-13 温州市天龙轻工设备有限公司 Multi-effect vacuum forced circulation evaporation device and material concentrating method thereof
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106267870A (en) * 2015-05-22 2017-01-04 佛山德众制药机械有限公司 A kind of closed circuit economic benefits and social benefits alcohol concentrates unit and method for concentration thereof
CN106267870B (en) * 2015-05-22 2019-03-15 佛山德众制药机械有限公司 A kind of closed circuit economic benefits and social benefits alcohol concentration unit and its method for concentration

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Free format text: CORRECT: INVENTOR; FROM: ZHOU MINHUI ZHU HUIFU FAN KUNHAI YU YOUHAI SHANG XIAOJUAN DUAN GUIQING WANG HUAHE TO: ZHOU MINHUI ZHU HUIFU SU GANG LIU BAIQI FAN KUNHAI YU YOUHAI SHANG XIAOJUAN DUAN GUIQING WANG HUAHE

CB03 Change of inventor or designer information

Inventor after: Zhou Minhui

Inventor after: Zhu Huifu

Inventor after: Su Gang

Inventor after: Liu Baiqi

Inventor after: Fan Kunhai

Inventor after: Yu Youhai

Inventor after: Shang Xiaojuan

Inventor after: Duan Guiqing

Inventor after: Wang Huahe

Inventor before: Zhou Minhui

Inventor before: Zhu Huifu

Inventor before: Fan Kunhai

Inventor before: Yu Youhai

Inventor before: Shang Xiaojuan

Inventor before: Duan Guiqing

Inventor before: Wang Huahe

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Application publication date: 20150401

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