CN203816245U - Self-heating and flash-evaporation integrated horizontal pipe falling film evaporator - Google Patents
Self-heating and flash-evaporation integrated horizontal pipe falling film evaporator Download PDFInfo
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- CN203816245U CN203816245U CN201420207945.6U CN201420207945U CN203816245U CN 203816245 U CN203816245 U CN 203816245U CN 201420207945 U CN201420207945 U CN 201420207945U CN 203816245 U CN203816245 U CN 203816245U
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- heating
- evaporation
- falling film
- film evaporator
- flash
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 68
- 238000001704 evaporation Methods 0.000 title claims abstract description 62
- 239000011552 falling film Substances 0.000 title claims abstract description 20
- 230000008020 evaporation Effects 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010408 film Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a self-heating and flash-evaporation integrated horizontal pipe falling film evaporator, belonging to the technical field of alumina production. The evaporator comprises an evaporation tank casing, a liquid distributor, a heating pipe, a compressor, a feeding circulation pump, a vapor guiding device, a vapor homogenizing tank and a vapor collection tank. According to the self-heating and flash-evaporation integrated horizontal pipe falling film evaporator, the existing heating mode of the evaporator is changed into a self-heating and flash-evaporation integrated horizontal pipe heating mode, the heated liquid circulates on a film distribution heating pipe to realize flash evaporation, non-consumable vapor during the flash evaporation is pressurized and heated by the compressor and then enters the heating pipe again, so that the consumption of the evaporator on foreign fresh vapor can be greatly reduced, no waste hot vapor is discharged, the energy-saving effect is significant, the operating cost of enterprises can be greatly lowered, the self-heating and flash-evaporation integrated horizontal pipe falling film evaporator can be widely applied into industries of chemical engineering, papermaking, smelting, medical industries and the like, and can replace the original traditional pipe falling film evaporator, thus having very wide application prospects.
Description
Technical field
The utility model relates to technical field of alumina production, particularly a kind of from heating flash evaporation one horizontal tube falling film evaporator.
Background technology
Evaporimeter uses in a large number in industries such as chemical industry, papermaking, light industry, medicine, food, metallurgy and desalinizations.At present, evaporimeter is mainly divided into circular form and the large class of membrane type two, and its structure is mainly comprised of heating clamber and vaporization chamber two parts.Heating clamber for the needed heat of evaporation, impels liquid boiling vaporization to liquid carrying; Vaporization chamber makes gas-liquid two-phase completely separated.The steam producing in heating clamber, with a large amount of liquid foams, has arrived after the vaporization chamber of larger space, and the effect of these liquid dependence self cohesion or demister etc. is able to separated with steam.Although this traditional evaporimeter efficient heat transfer, exists structure and flow process complexity, trivial operations, shortcoming that operating cost is high, and have that heat transfer temperature difference is large, easily fouling, drawbacks such as being difficult to processing scabs.This causes equipment investment high, and economic benefit and social benefit are poor.
Utility model content
In order to solve conventional evaporator complex structure, operating cost is high, heat transfer temperature difference is large, the easy problem such as fouling, it is a kind of from heating flash evaporation one horizontal tube falling film evaporator that the utility model provides, and comprises evaporation ladle bowl, liquid distributor, heating tube, compressor, feed cycle pump, leads vapour device, vapor box and steam manifold; Described liquid distributor, heating tube, leading vapour device, vapor box and steam manifold, to be installed in described evaporation ladle bowl inner; Described feed cycle pump intake is fixedly connected with evaporation ladle bowl bottom, and described feed cycle pump discharge extend into liquid distributor bottom by pipeline; Described liquid distributor is arranged at heating tube top; The described vapour device of leading is arranged at liquid distributor top, and is arranged on described evaporation ladle bowl inner tip; The top of described vapor box one side is connected with external steam pipeline, bottom is connected with condensed water discharge pipe, and described vapor box opposite side is connected with many heating tubes with inclination mounting means, and the end of every heating tube is all connected with steam manifold by pipeline; Described steam manifold top by pipeline with lead vapour device portal and be connected, described in lead the outlet of vapour device and be connected with suction port of compressor, compressor outlet is connected with external steam pipeline.
Every heating tube is parallel to each other and equally spaced being connected on vapor box from top to bottom, and the length of every heating tube is greater than the length of described liquid distributor.
Between described feed cycle pump intake and evaporation ladle bowl bottom, triple valve is installed, described triple valve inlet is connected with described evaporation ladle bowl bottom by pipeline, and described triple valve outlet is connected with feed cycle pump intake by pipeline.
Between described triple valve and feed cycle pump intake, the ball valve for discharge opeing is installed.
The described vapour device of leading is demister.
Described evaporation ladle bowl be shaped as square.
Of the present utility model from heating flash evaporation one horizontal tube falling film evaporator, that the mode of heating of existing evaporimeter is transform as from heating flash evaporation one horizontal tube mode of heating, be heated on liquid-circulating cloth film heating pipe, realize flash distillation, the steam not consuming in flash process again enters heating tube after compressor pressurizes heats up, thereby has significantly reduced the consumption of evaporimeter to external live steam, there is no waste hot steam discharge, energy-saving effect is remarkable, has greatly reduced enterprise operation cost; In addition, owing to having adopted the evaporation mode of the outer falling liquid film of horizontal tube, so the product time of staying is short, and efficiency is high.Evaporation structure of the present utility model is simple, can be applied to the industries such as chemical industry, papermaking, smelting, medicine, can substitute original conventional tubular falling film evaporator, has application prospect very widely.
Accompanying drawing explanation
Fig. 1 is the structural representation from heating flash evaporation one horizontal tube falling film evaporator that the utility model embodiment provides.
The specific embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are further described.
The utility model embodiment transform the mode of heating of existing evaporimeter from heating flash evaporation one horizontal tube mode of heating as, be heated on liquid-circulating cloth film heating pipe, realize flash distillation, the steam not consuming in flash process again enters heating tube after compressor pressurizes heats up, realize heating condensation and reclaim, be evaporated liquid and realize concentrated.
Referring to Fig. 1, the utility model embodiment provide from heating flash evaporation one horizontal tube falling film evaporator, comprise evaporation ladle bowl 1, liquid distributor 2, heating tube 3, compressor 4, feed cycle pump 5, lead vapour device 6, vapor box 7 and steam manifold 8.Wherein, liquid distributor 2, heating tube 3, lead vapour device 6, vapor box 7 and steam manifold 8 be installed in evaporation ladle bowl 1 inside; Feed cycle pump 5 entrances are fixedly connected with evaporation ladle bowl 1 bottom, and 5 outlets of feed cycle pump extend into liquid distributor 2 bottoms by pipeline; Liquid distributor 2 be arranged at heating tube 3 directly over; Lead vapour device 6 and be arranged at liquid distributor 2 tops, and be arranged on evaporation ladle bowl 1 inner tip; The top of vapor box 7 one sides is connected with external steam pipeline 13, bottom is connected with condensed water discharge pipe 9, and vapor box 7 opposite sides are connected with many heating tubes 3 with inclination mounting means, and the end of every heating tube 3 is all connected with steam manifold 8 by pipeline; Steam manifold 8 tops by pipeline with lead vapour device 6 entrances and be connected, lead 6 outlets of vapour device and be connected with compressor 4 entrances, compressor 4 exports and is connected with external steam pipeline 13.
In actual applications, every heating tube 3 adopts inclination mounting means, the angle of inclination of heating tube 3 can be set to 1-5 degree (angular range of heating tube 3 and horizontal positive direction) according to production engineering specifications, contribute to like this condensation water collection producing in heat exchanging process in steam manifold 8, and do not remain in heating tube 3, improve heat exchange efficiency; Meanwhile, every heating tube 3 is parallel to each other and equally spaced being connected on vapor box 7 from top to bottom, and the length of every heating tube 3 is greater than the length of liquid distributor 2.The condensed water of vapor box 7 inside is transported to condensation water recovery system by condensed water discharge pipe 9, and the condensed water that steam manifold 8 is collected is also transported to condensation water recovery system.
In concrete application, lead vapour device 6 for demister; The shape of evaporation ladle bowl can be designed to square or other shapes.Simultaneously, for handled easily, control and also to need to increase by-pass valve control, mainly comprise for controlling stop valve 10 that outside live steam passes into, passing into the gate valve 12 of liquid to be evaporated and for the triple valve 11 of circulating and evaporating concentrate for the entrance at feed cycle pump 5.Wherein, triple valve 11 entrances are connected with evaporation ladle bowl 1 bottom by pipeline, and triple valve 11 outlets are connected with feed cycle pump 5 entrances by pipeline; Emptying operation to feed cycle pump 5 while stopping work for the ease of producing is provided with the ball valve 12 for discharge opeing between triple valve 11 and feed cycle pump 5 entrances.The quantity of heating tube 3 can determine according to the requirement of evaporation effect, and the present embodiment adopts 3 evaporation tubes to describe.Connected mode described in the present embodiment, mainly comprises the modes such as welding, flange connection.
The operation principle from heating flash evaporation one horizontal tube falling film evaporator of the utility model embodiment is: during start up, open stop valve 10 and pass into live steam, under the effect of vapor box 7, each heating tube 3 inside have been full of appropriate vapours, after system operates steadily, close stop valve 10, stop inputting live steam, open ball valve 12, to feed cycle pump 5, inject liquid to be evaporated, start feed cycle pump 5, liquid to be evaporated enters liquid distributor 2 by evaporating ladle bowl 1 top, after liquid distributor 2 uniform distributions, liquid to be evaporated relies on gravity and vacuum induced and air-flow to be membranaceous flowing downward from top to bottom, in motion process with heating tube 3 in steam generation heat exchange and evaporate, gas after evaporation is discharged by evaporating ladle bowl 1 top vapour phase line, liquid after evaporation flows to evaporation ladle bowl 1 bottom, bottom liquid flows into feed cycle pump 5 entrances by triple valve 11, after liquid to be evaporated injects, close ball valve 12, after the steam not consuming in liquid flashes process to be evaporated is collected by steam manifold 8, by export pipeline, enter and lead vapour device 6, lead vapour device 6 and remove the drop of entrainment with steam, steam through compressor 4 compressions heats up, by outside live steam pipeline, enter vapor box 7 and be used as heating steam and use, make feed liquid maintain fluidized state, to entering the liquid timing sampling of feed cycle pump 5, if sampled concentrations has reached index request, just by triple valve 11, change flow direction, reclaim the concentrated liquid after evaporation.By above-mentioned operation principle, can be found out, the steam not consuming in flash process is fully utilized, compare the processing mode that conventional evaporator steam goes out of use, the utility model embodiment has reclaimed latent heat, improved the thermal efficiency, economy is equivalent to tens times of multiple-effect evaporation, has reduced the demand to external heat and cooling resource, reduce energy consumption, reduced pollution.
The utility model embodiment has the following advantages from heating flash evaporation one horizontal tube falling film evaporator tool:
1) this evaporimeter only needs the live steam of minute quantity, except start up, in whole evaporation process without live steam, that steam by not consuming in flash process returns to the heat source as evaporimeter completely, make feed liquid maintain fluidized state, live steam only loses and supplements input and output material heat content for supplemental heat, thereby significantly reduced the consumption of evaporimeter to external live steam, there is no waste hot steam discharge, energy-saving effect is remarkable, greatly reduced enterprise operation cost, the operating cost of whole evaporimeter is 1/3rd to 1/2nd of conventional evaporator.
2) adopt compressor to replace the input of steam that thermal source is provided with the input of electrical power, reduced operating cost; Owing to having adopted the evaporation mode of the outer falling liquid film of horizontal tube, so the product time of staying is short, and efficiency is high; Technique is simpler, practical, and still less, total investment of engineering still less for ancillary engineering facility.
3) compare with conventional evaporator, the evaporimeter of the utility model embodiment can without freezing equipment, have a narrow range of temperature 40 ℃ of following evaporations, can reach gentle evaporation, is particularly suitable for heat sensitive material, has greatly improved product quality, pre-good antiscale property.Even if there is micro-phenomenon that scabs, due to the outside outer arc of pipeline, when variations in temperature, also can fall into bottom and get rid of because heat expansion difference is peeled off, do not need to clean, and heat-transfer effect is also fine.
4) operate steadily, automaticity is high.Evaporimeter can be installed automatic control system, realizes from the automation of the steps such as stoste filling, preheating, evaporation, cleaning, maintenance and controlling, and has avoided human error, has reduced human cost, has improved product quality.
5) heating steam, by pipe interior, can be born relatively high pressure, and vaporization chamber is in low pressure or vacuum state, to the requirement of pressure vessel, can reduce, and is conducive to processing and manufacturing.
Above-described specific embodiment; the object of the present embodiment, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present embodiment; be not limited to the present embodiment; all within the spirit and principle of the present embodiment, any modification of making, be equal to replacement, improvement etc., within all should being included in the protection domain of the present embodiment.
Claims (6)
1. from a heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, comprise evaporation ladle bowl, liquid distributor, heating tube, compressor, feed cycle pump, lead vapour device, vapor box and steam manifold; Described liquid distributor, heating tube, leading vapour device, vapor box and steam manifold, to be installed in described evaporation ladle bowl inner; Described feed cycle pump intake is fixedly connected with evaporation ladle bowl bottom, and described feed cycle pump discharge extend into liquid distributor bottom by pipeline; Described liquid distributor is arranged at heating tube top; The described vapour device of leading is arranged at liquid distributor top, and is arranged on described evaporation ladle bowl inner tip; The top of described vapor box one side is connected with external steam pipeline, bottom is connected with condensed water discharge pipe, and described vapor box opposite side is connected with many heating tubes with inclination mounting means, and the end of every heating tube is all connected with steam manifold by pipeline; Described steam manifold top by pipeline with lead vapour device portal and be connected, described in lead the outlet of vapour device and be connected with suction port of compressor, compressor outlet is connected with external steam pipeline.
2. as claimed in claim 1ly from heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, every heating tube is parallel to each other and equally spaced being connected on vapor box from top to bottom, and the length of every heating tube is greater than the length of described liquid distributor.
3. as claimed in claim 2 from heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, between described feed cycle pump intake and evaporation ladle bowl bottom, triple valve is installed, described triple valve inlet is connected with described evaporation ladle bowl bottom by pipeline, and described triple valve outlet is connected with feed cycle pump intake by pipeline.
4. as claimed in claim 3ly from heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, between described triple valve and feed cycle pump intake, the ball valve for discharge opeing is installed.
5. as claimed in claim 1ly from heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, described in to lead vapour device be demister.
6. as claimed in claim 1ly from heating flash evaporation one horizontal tube falling film evaporator, it is characterized in that, described evaporation ladle bowl be shaped as square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207945.6U CN203816245U (en) | 2014-04-25 | 2014-04-25 | Self-heating and flash-evaporation integrated horizontal pipe falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207945.6U CN203816245U (en) | 2014-04-25 | 2014-04-25 | Self-heating and flash-evaporation integrated horizontal pipe falling film evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN203816245U true CN203816245U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207945.6U Expired - Lifetime CN203816245U (en) | 2014-04-25 | 2014-04-25 | Self-heating and flash-evaporation integrated horizontal pipe falling film evaporator |
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| CN (1) | CN203816245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124338A (en) * | 2019-06-20 | 2019-08-16 | 江苏瑾瑜节能环保科技有限公司 | A kind of vertical internal-circulating heat exchange vacuum evaporation tank and its concentration systems |
-
2014
- 2014-04-25 CN CN201420207945.6U patent/CN203816245U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124338A (en) * | 2019-06-20 | 2019-08-16 | 江苏瑾瑜节能环保科技有限公司 | A kind of vertical internal-circulating heat exchange vacuum evaporation tank and its concentration systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |