CN101696835B - Efficient combined-type evaporator-condenser - Google Patents
Efficient combined-type evaporator-condenser Download PDFInfo
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- CN101696835B CN101696835B CN2009102365697A CN200910236569A CN101696835B CN 101696835 B CN101696835 B CN 101696835B CN 2009102365697 A CN2009102365697 A CN 2009102365697A CN 200910236569 A CN200910236569 A CN 200910236569A CN 101696835 B CN101696835 B CN 101696835B
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Abstract
The invention discloses an evaporation-condensation structure used in the field of water treatment and process flow of chemical and refrigeration industry. The structure comprises a group of disk-type evaporators and a multi-tube-bundle condenser placed in parallel to the disk surfaces of the disk-type evaporators, and is characterized in that tube bundles of the tube-bundle condenser and the disk surfaces of the evaporators are staggered and alternately arranged; the distance between the disk surfaces of tube walls is between 1 and 10 mm; and the condensation tube bundles are arranged below rotating shafts of the evaporation disk surfaces. The combined-type evaporator-condenser can realize 100 percent of evaporation of evaporation surfaces, and can realize the small-temperature-different heat exchange with temperature difference less than 1 DEG C between condensation steam and liquid tanks in the condenser, thereby having high heat exchange efficiency.
Description
Technical field
In the technological process of water treatment field and chemical industry and refrigeration industry, often exist the process of a heat absorption evaporation and heat release condensation, realize the evaporimeter of these two processes and the height of condenser efficiency, to the energy service efficiency important influence of whole system.The present invention relates to a kind of knockdown evaporimeter and condenser, be applicable to the process equipment that exists evaporation and two kinds of heat transfer process of condensation simultaneously.This knockdown evaporimeter and condenser structure comprise disc type rotary evaporator part and static tube bank type condenser portion.
Background technology
In the technological process of water treatment field and chemical industry and refrigeration industry, exist evaporation and two kinds of heat transfer process of condensation simultaneously.The process equipment of present they all is to be evaporimeter and condenser two parts that work alone usually, couples together with the flow process pipeline.Especially in the pressure steam distillation method that water treatment field adopts, its cyclic process of adopting is the top of exhausted water being squeezed into spray-type evaporator by liquid pump, waste water rely on gravity from the process heat absorption evaporation that falls, the water vapour that is evaporated relies on compressor to improve pressure and temperature, enter into condensing heat exchanger then and be condensed into pure water, water vapour condensation liberated heat is used for heating the energy that newly advances sewage and its evaporation is provided simultaneously.This wherein adopts spray-type evaporator and vapour-liquid condensing heat exchanger to finish the evaporation of sewage and the condensation process of clean water steam.Pressing the evaporimeter of steam distillation process using at present all is that traditional evaporimeter separates the pattern that is connected with pipeline with condenser with condenser.Because when spray-type evaporator spray liquid can not evaporate fully, unevaporated drop falls in the liquid return tank, thereby has wasted the pump merit of raising its gravitional force, the loss that has brought merit.And the circulation of the plumbing drain of the traditional condenser that adopts at present, the system that makes needs the sewage (waste water) recirculating pump (general internal circulating load is 1000 times of evaporation capacity) of a big flow.A large amount of pump merits that the needs of this circulating pump consume make whole water treatment system be difficult to obtain higher system efficient, and just this reason makes and presses steam distillation to follow the method for treating water of nobody shows any interest in into a kind of inefficiency.
Pressing steam distillation is a kind of water technology of physical method, has and does not add chemical agent, and the compactedness height takes up an area of and lacks a kind of water technology that the feature of environmental protection is high.In order to improve the cycle efficieny of pressing the steam distillation method for treating water, make it become a kind of competitive method for treating water, the present invention proposes a kind of novel combined-type evaporator and condenser.This method can improve the evaporation efficiency of pressing in the steam distillation and the heat exchange efficiency of condenser significantly, makes the cycle efficieny of whole system improve greatly.This knockdown evaporimeter adopts the evaporimeter (quantity of rotating disk is determined according to the scale of evaporation capacity) of one group of rotating disc type, condenser adopts bundled tube, evaporating pan and condensation tube bank are closely arranged with little intervals, thereby make evaporimeter and condenser be combined into one, thereby saved the effluent cycle loop, saved a large amount of circulating pump merits.In this combination evaporator-condenser, finish the evaporation and the water vapour condensation heat release heating sewage of sewage simultaneously, make sewage obtain the process of evaporation heat.Adopt this combined evaporative-condensation structure, can be so that the very high evaporation efficiency of the acquisition of evaporimeter, simultaneously also make condensing heat exchanger that very high heat transfer coefficient is arranged, thereby make overall system efficiency be greatly improved, make and press steam distillation to become a kind of method for treating water of greater efficiency, lay a good foundation for it moves towards practicability.
Summary of the invention
The purpose of this invention is to provide a kind of integrated high-efficiency evaporator-condenser structure that is applicable to evaporation and condensation process.This structure comprises one group of disc type evaporimeter (1) of slow rotation, and and the rotating disk bundled tube condenser (5) of Boulez at interval, the liquid level of evaporated liquor (3) is positioned at disc type evaporimeter (1) rotating disk Lower Half, and the tube bank of flooding all bundled tube condensers (5).The principal character of its structure is that rotating shaft (2) heart of disc type evaporimeter (1) rotating disk is higher than liquid level (3) a little, and the condensation tube bank of condenser all is positioned at the liquid level below, and subsurface rotating disc and condensation tube bank are with closely-spaced tight arrangement.
The major advantage of the integrated high-efficiency evaporator-condenser structure of this evaporation of the present invention and condensation process is: the liquid of panel surface is all evaporated, even unevaporated drop also can be avoided in the spray-type evaporator drop to splash down and produce losses of potential energy.2) can be so that the flowing velocity on condenser bundles surface remain higher state, thus the heat exchange of condensation tube bank and liquid strengthened, improved the heat transfer coefficient of condenser pipe greatly.3) knockdown evaporimeter and condenser structure have omitted the closed circuit of liquid pool, have saved a large amount of circulating pump merits.When 4) this structure is used for the evaporation of sewage disposal, can also reduce the speed of dirt by " the wiper effect " of condensation tube bank and card in the fouling of evaporation card.
Description of drawings
Fig. 1 efficient combined-type evaporator of the present invention and condenser structure front view
Fig. 2 efficient combined-type evaporator of the present invention and condenser structure side view.
Fig. 3 efficient combined-type evaporator of the present invention and condenser structure vertical view
Among the figure: 1. disc type evaporimeter 2. rotating shafts 3. liquid levels 4. condensation vapor inlets 5. bundled tube condensers 6. condensate outlets
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Rotation card for disc type evaporimeter (1) is made for the porous material of suction, the liquid that card has been carried in the liquid pool by rotation evaporates in the space on liquid level (3) top, control the water imbibition and the disengagement area of rotating speed and evaporating surface well, can not allow card that the liquid that splashes down is arranged, the liquid of panel surface is all evaporated, even if unevaporated liquid is arranged, also will follow rotating disk and incorporate once more in the pond, like this potential energy that has lost with regard to having avoided the spray-type evaporator drop to splash down.Condensation vapour enters the tube bank of bundled tube condenser (5) from inlet (4), the wall by condenser bundles and the heat of transformation of condensation process passed to liquid in the liquid pool, and condensation vapour liquefy water is discharged from condensate outlet (6).In the heat transfer process of condenser, the condensation vapour in the pipe is condensation heat transfer at wall, have the very high coefficient of heat transfer, so the heat exchange thermal resistance of condenser pipe outer wall has just become to influence condensation vapour transmits heat in liquid pool main thermal resistance.Because the rotation (stirring) of disc type evaporimeter (1) card can make the temperature of liquid pool keep evenly so that bundled tube condenser (5) passes to heat evenly diffusion in liquid pool of liquid pool.Rotating disk is in liquid level bottom and the closely-spaced tight arrangement of condenser bundles simultaneously, can be so that the flowing velocity on condenser bundles surface remains higher state, thereby strengthened the heat exchange of condensation tube bank and liquid, improve the heat transfer coefficient of condenser pipe greatly, made the condensation vapour in the condenser pipe and the liquid of liquid pool can carry out little temperature difference heat exchange.And this structure can also reduce the speed of dirt in the fouling of evaporation card by " the wiper effect " of condensation tube bank and card when being used for the evaporation of sewage disposal.
In order to improve evaporation capacity, can in a liquid pool, adopt many these combined evaporative-condensers of cover, and between evaporation rotating disk and the condenser bundles so long as be spaced, no matter how many spacings between them specifically is, all think structure shown in the present.
The present invention shows through the actual measurement of the experimental prototype of making, disc type evaporimeter (1) can be realized the liquid evaporation on surface 100%, have very high evaporation efficiency, can realize the little temperature difference heat exchange of condensation vapour and liquid pool simultaneously in the condenser, have very high heat exchange efficiency less than the 1 degree temperature difference.
Claims (1)
1. evaporation-condensation structure that is used in water treatment field and chemical industry and refrigeration industry technological process, comprise go up driving by a plurality of cards and form the disc type evaporimeter (1) that the rotating disc that plays evaporation constitutes by rotating shaft (2), bundled tube condenser (5) with the parallel placement of disc type evaporimeter (1) card, it is characterized in that: the card of the tube bank of bundled tube condenser (5) and disc type evaporimeter (1) is staggered to be spaced, card and the tube wall spacing between the two is between 1mm～10mm, and the tube bank of bundled tube condenser (5) is arranged in the below of rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102365697A CN101696835B (en) | 2009-11-02 | 2009-11-02 | Efficient combined-type evaporator-condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102365697A CN101696835B (en) | 2009-11-02 | 2009-11-02 | Efficient combined-type evaporator-condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101696835A CN101696835A (en) | 2010-04-21 |
| CN101696835B true CN101696835B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102365697A Expired - Fee Related CN101696835B (en) | 2009-11-02 | 2009-11-02 | Efficient combined-type evaporator-condenser |
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| CN (1) | CN101696835B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589199A (en) * | 2012-03-13 | 2012-07-18 | 吴思 | Combined wheel plate type evaporator condenser |
| CN102849810A (en) * | 2012-09-03 | 2013-01-02 | 北京航空航天大学 | Novel combination type evaporation condenser |
| CN102944132A (en) * | 2012-11-30 | 2013-02-27 | 王益 | Combined evaporator and condenser and control method thereof |
| CN105617704A (en) * | 2016-02-24 | 2016-06-01 | 江苏瑞达环保科技有限公司 | Evaporation and condensation tank used for mechanical vapor compression distillation process and provided with separation chamber |
| CN106044902A (en) * | 2016-07-20 | 2016-10-26 | 江苏省环科院环境科技有限责任公司 | System and method for treating high-salt-content organic waste liquid by virtue of disc drier |
| CN109696063A (en) * | 2018-12-28 | 2019-04-30 | 朱玲燕 | A kind of rotating disc type thin film evaporation cooling tower |
| CN111473546A (en) * | 2020-04-23 | 2020-07-31 | 长虹美菱股份有限公司 | Refrigerating device and refrigerator |
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2009
- 2009-11-02 CN CN2009102365697A patent/CN101696835B/en not_active Expired - Fee Related
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| CN101696835A (en) | 2010-04-21 |
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Granted publication date: 20110420 Termination date: 20121102 |