CN106890472A - A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system - Google Patents
A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system Download PDFInfo
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- CN106890472A CN106890472A CN201510967984.5A CN201510967984A CN106890472A CN 106890472 A CN106890472 A CN 106890472A CN 201510967984 A CN201510967984 A CN 201510967984A CN 106890472 A CN106890472 A CN 106890472A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
- B01D3/065—Multiple-effect flash distillation (more than two traps)
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention relates to a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system, including the multiple-effect forced circulation flash distillation plant that the forced-circulation evaporator being sequentially communicated by least two effects is constituted, often effect forced-circulation evaporator includes separator, heater, for the circulating pump and feed liquid circulating line that circulate feed liquid between, heater is provided with steam inlet and steam condensate outlet, the steam condensate outlet of the first effect heater is connected with cold tank is dodged, cold tank top is dodged to be connected with the steam inlet of the heater of the forced-circulation evaporator after the second effect or/and the second effect by jet chimney, bottom is provided with condensate drain road.Compared with prior art, the present invention has the advantages that simple structure, energy-saving effect are obvious, reduce discharge of steam pollution and improve condensate pump service life.
Description
Technical field
The invention belongs to evaporator applications, and in particular to a kind of multi-effect forced circulation evaporation device condensed water flash recuperation of heat
System.
Background technology
The technological process of common multi-effect forced circulation evaporation device is generally by triple effect forced-circulation evaporator to thing
Material is concentrated, and the heater steam condensate (SC) out of the first effect forced-circulation evaporator flows into condensate water pot, and
There is condensate pump that condensed water is sent into boiler room.Due to flowing into the condensate temperature of condensate water pot close to 100 DEG C, and
The condensed water temperature of back boiler is general no more than 80 DEG C, so condensed water slave unit to be delivered to the process of boiler
The temperature of middle condensed water will at least decline 20 DEG C, and general condensate water pot is a normal pressure tank, is directly connected with air
Logical, this partial heat is directly distributed into air by condensate water pot, has both caused the loss of heat, and life is caused again
Produce the environmental pollution at scene.
The content of the invention
The purpose of the present invention is exactly to provide a kind of simple structure, section for the defect for overcoming above-mentioned prior art to exist
Energy effect is substantially, reduction discharge of steam pollutes and the multi-effect forced circulation evaporation device of raising condensate pump service life is cold
Solidifying water flash distillation heat recovery system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system, including be sequentially communicated by least two effects
The multiple-effect forced circulation flash distillation plant that forced-circulation evaporator is constituted, often imitating forced-circulation evaporator includes separating
Device, heater, circulating pump and feed liquid circulating line for feed liquid to be circulated between, heater are provided with
Steam inlet and steam condensate outlet, it is characterised in that the steam condensate outlet of the first effect heater is cold with sudden strain of a muscle
Tank is connected, and dodges cold tank top by the forced-circulation evaporator after jet chimney and the second effect or/and the second effect
The steam inlet of heater is connected, and bottom is provided with condensate drain road.
Cold tank top is dodged to be connected with the steam inlet of the heater of the second effect forced-circulation evaporator by jet chimney.
The system also includes level controling mechanism, described level controling mechanism by controller, be arranged on the cold tank of sudden strain of a muscle
Liquid level sensor and be arranged on condensate drain road condensate pump composition.
Described condensate drain road is connected with the boiler of the raw steam of manufacture.
Pipeline between described forced-circulation evaporator and circulating pump is provided with liquor inlet, the exit of circulating pump
Material liquid outlet is provided with, the material liquid outlet of latter effect forced-circulation evaporator passes through pipeline phase with the liquor inlet of previous effect
Even；The liquor inlet of last effect forced-circulation evaporator is the liquor inlet of the system, and the first effect forced circulation is steamed
The material liquid outlet for sending out device is the material liquid outlet of the system.
Be provided with steam (vapor) outlet at the top of described knockout drum, the steam (vapor) outlet of previous effect forced-circulation evaporator with it is latter
The steam inlet of effect is connected；The steam inlet of the first effect forced-circulation evaporator is the raw steam inlet of the system, most
The steam (vapor) outlet of latter effect forced-circulation evaporator is connected to condenser.
The steam condensate outlet of the forced-circulation evaporator after the second effect and the second effect connects steam condensation respectively
Liquid collection conduit, condensate collector tube road is passed through fruit cleaning unit, and steam condensate is used for the cleaning of fruit.
Low head is ellipse head on the cold tank of described sudden strain of a muscle.Because ellipse head stressing conditions are more preferable, it is possible to increase
The intensity of equipment.
The present invention is recycled to the energy of steam condensate (SC) of the first effect forced-circulation evaporator, by by its
The closed cold tank of sudden strain of a muscle of input, the second effect or/and the second effect are entered by the indirect steam after flash distillation by jet chimney
Afterwards in the heater of forced-circulation evaporator, as the especially supplemental heat source of the second effect forced-circulation evaporator, play
Energy-conserving action.The principle that flash-off steam can enter secondary evaporation heater be, the saturated-steam temperature of flash distillation more than etc.
In the saturation temperature of the secondary heater to be entered, and the temperature of the saturation indirect steam dodged in the present invention after cold tank flash distillation
Degree is more than the second effect and the saturation temperature of later heater.Condensate temperature reduction after flash distillation, by condensed water
Pump is delivered to boiler room, for producing raw steam.The volume for dodging cold tank is counted according to the steam consumption of whole system
Calculate, the vacuum of single cold tank work is at -0.054MPa (80 DEG C).The system also includes level controling mechanism, described
Level controling mechanism by controller, be arranged on the liquid level sensor that dodges on cold tank and be arranged on condensate drain road
On condensate pump composition, the metered flow of general pump can be more than the yield of condensed water, if without Liquid level,
So pump can have time the risk taken out, pump can air inlet produce cavitation erosion, gas lock phenomenon, cause the damage and operation of pump
The drastically decline of efficiency, low liquid level and high level are perceived by liquid level sensor, when condensate liquid is less than low liquid level, pump
Stop, for a period of time, condensate pump starts for time delay after condensed water is higher than low liquid level, and this delay time can be
Determine in actual debugging process.
Compared with prior art, the invention has the advantages that：
(1) device structure is simple, and construction expenditure is low, and the present invention is improved by by condensate water pot of the prior art
To dodge cold tank, and increase a steam inlet for the forced-circulation evaporator led to after the second effect or/and the second effect
Jet chimney, simple structure, construction expenditure is low.
(2) energy-saving effect substantially, substantial amounts of latent heat is contained in an effect steam condensate, cold by flashing this part
Lime set, and using the indirect steam for producing, energy-conservation can be played a part of, by improvement of the invention, in production capacity
Heater that can be after steam saving consumption 3.3%, and two effects and two effects in the present invention on the premise of constant
Steam condensate is used for the cleaning of fruit, further saves water.
(3) it is sealing structure to dodge cold tank, solves steam and pokes one's nose everywhere the risk of caused environmental pollution.
(4) service life of condensate pump is improve, original condensate pump is high due to water temperature, and condensate pump is easy
Cavitation is produced, the condensate temperature reduction after dodging cold tank flash distillation is conducive to the life-span of condensate pump.
Brief description of the drawings
Fig. 1 is process flow diagram of the invention；
In figure, 1 is the first effect forced-circulation evaporator, and 101 is the first effect separator, and 102 is the first effect heating
Device, 103 is the first effect circulating pump, and 104 is the first effect steam inlet, and 105 is the first effect steam condensate outlet,
106 is the first effect steam (vapor) outlet, and 107 is the first effect liquor inlet, and 108 is the first effect material liquid outlet, and 2 is second
Effect effect forced-circulation evaporator, 201 is the second effect separator, and 202 is the second effect heater, and 203 is the second effect
Circulating pump, 204 is the second effect steam inlet, and 205 is that the second effect steams condensate outlet, and 206 is the second effect steam
Outlet, 207 is the second effect liquor inlet, and 208 is the second effect material liquid outlet, and 3 is triple effect forced-circulation evaporation
Device, 301 is triple effect separator, and 302 is triple effect heater, and 303 is triple effect cycle pump, and 304 is the 3rd
Effect steam inlet, 305 is that triple effect steams condensate outlet, and 306 is triple effect steam (vapor) outlet, and 307 is triple effect
Liquor inlet, 308 is triple effect material liquid outlet, and 4 to dodge cold tank, and 5 is condensate pump, and 6 is boiler.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system, as shown in figure 1, including by the first effect
Forced-circulation evaporator 1, second imitates forced-circulation evaporator 2 and triple effect forced-circulation evaporator 3 is sequentially communicated
Forced-circulation evaporator constitute triple effect forced circulation flash distillation plant, often imitate forced-circulation evaporator include separate
Device, heater, circulating pump and feed liquid circulating line for feed liquid to be circulated between, feed liquid are strong in every effect
Circulation in circulating evaporator processed is that the feed liquid after circulating pump will be flashed in separator is extracted out from separator bottom,
Then enter heater from the bottom of heater, with steam heat-exchanging after enter separator from the top of heater so that
Realize circulation.
The system uses adverse current triple effect forced-circulation evaporation, and the pipeline between separator and circulating pump is provided with feed liquid and enters
Mouthful, top is provided with steam (vapor) outlet.Steam inlet is provided with the top of heater, bottom is provided with steam condensate outlet,
Second effect and later steam condensate outlet connect steam condensate collection conduit respectively, and condensate collector tube road leads to
Enter fruit cleaning unit, steam condensate is used for the cleaning of fruit..The export pipeline of circulating pump is provided with feed liquid
Outlet.The material liquid outlet of latter effect forced-circulation evaporator is connected with the liquor inlet of previous effect by pipeline；Finally
The liquor inlet of one effect forced-circulation evaporator is the liquor inlet of the system, and the first effect material liquid outlet 108 is for this
The material liquid outlet of system.The steam (vapor) outlet of previous effect forced-circulation evaporator is connected with the steam inlet of latter effect；First
The steam inlet for imitating forced-circulation evaporator is the raw steam inlet of the system, and triple effect steam (vapor) outlet 306 is connected to cold
Condenser.
The steam condensate outlet 105 of the first effect heater 102 is connected with cold tank 4 is dodged, and dodges the cold top of tank 4 and passes through
Jet chimney is connected with the second effect steam inlet 204, and bottom is provided with condensate drain road, condensate drain road
Boiler with the raw steam of manufacture is connected, and which is provided with condensate pump.Dodge cold tank 4 and be additionally provided with liquid level sensor, condense
Liquid pump and liquid level sensor are connected with controller respectively, and controller controls condensate liquid by the signal of liquid level sensor
The start and stop of pump.
Specifically：
Enter the system from triple effect liquor inlet 307 into the feed liquid of the system, the raw steam that boiler 6 is produced leads to
Cross the first effect steam inlet 104 and enter the first effect heater 102, with the circulation feed liquid in the first effect heater 102
Fully heat exchange, steam condensate flows out from the first effect steam condensate outlet 105.Followed by the circulation feed liquid for heating
Ring is flashed into the first effect separator 101, forms indirect steam and circulation feed liquid, from the second effect material liquid outlet
208 feed liquids for coming enter first and imitate forced-circulation evaporator 1 by the first effect liquor inlet 107, with circulation feed liquid
Power is provided by the first effect circulating pump 103 together, a part is in the first effect effect heater of separator 101 and first
Circulated between 102, a part is discharged by the first effect material liquid outlet 108, forms finished product；The indirect steam of generation
Second effect steam inlet 204 is entered through by the first effect steam (vapor) outlet 106 and enters the second effect heater 202, two
Secondary steam is fully exchanged heat with the circulation feed liquid in the second effect heater 202, and steam condensate is condensed from the second effect steam
Liquid outlet 205 is flowed out, and fruit cleaning unit is entered by steam condensate collection conduit.By the cycle stock for heating
Liquid is recycled into the second effect separator 201 and is flashed, and indirect steam and circulation feed liquid is formed, from triple effect feed liquid
The feed liquid that outlet 308 comes enters second and imitates forced-circulation evaporator 2 by the second effect liquor inlet 207, with circulation
Feed liquid is imitated circulating pump 203 and provides power by second together, and a part adds in the second effect effect of separator 201 and second
Circulated between hot device 202, a part is discharged by the second effect material liquid outlet 208, by the first effect liquor inlet
107 enter first imitates forced-circulation evaporator 1；The indirect steam of generation is entered by the second effect steam (vapor) outlet 206
Triple effect heater 302 is entered by triple effect steam inlet 304.In indirect steam and triple effect heater 302
Circulation feed liquid fully exchange heat, steam condensate from second effect steam condensate outlet 305 flow out, it is cold by steam
Lime set collection conduit enters fruit cleaning unit.Triple effect separator 301 is recycled into by the circulation feed liquid for heating
Flashed, formed indirect steam and circulation feed liquid, indirect steam is discharged into cold from triple effect steam (vapor) outlet 306
Condenser is condensed；Circulate feed liquid and followed by triple effect together from triple effect liquor inlet 307 into the feed liquid of the system
Ring pump 303 provides power, and a part is circulated between triple effect separator 301 and triple effect heater 302, and one
Part is discharged by triple effect material liquid outlet 308, and entering second by the second effect liquor inlet 207 imitates forced circulation
Evaporator 2.
Also contain substantial amounts of heat energy from the condensed water of the first effect outflow of steam condensate outlet 105, temperature is approached
100 DEG C, flash distillation generation indirect steam and condensate liquid are carried out by being introduced into the cold tank 4 of sudden strain of a muscle.Dodge the upper and lower of cold tank 4
End socket uses ellipse head, dodges the cold top of tank 4 and is connected with the second effect steam inlet 206 by jet chimney, will
The indirect steam for dodging the generation of cold tank 4 introduces the second effect forced-circulation evaporator 2, used as the second effect forced-circulation evaporation
The extra supplemental heat source of device, plays energy-conserving action；Dodge the bottom of cold tank 4 and be provided with condensate drain road, on this pipeline
Condensate pump 5 is provided with, condensate liquid is passed through by boiler 6 by it, the raw steam that boiler 6 is produced is steamed by the first effect
Vapor inlet 104 enters the system.Dodge the liquid level being additionally provided with cold tank 4 for controlling the start and stop of condensate pump 5
Controller.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is that the cold flash distillation of tank 4 of sudden strain of a muscle in the present embodiment is produced
Indirect steam each lead into the second effect forced-circulation evaporator 2 second effect steam inlet 204 and triple effect force
Second effect steam inlet 304 of circulating evaporator 3.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, and difference is that the cold flash distillation of tank 4 of sudden strain of a muscle in the present embodiment is produced
Indirect steam be passed through triple effect forced-circulation evaporator 3 second effect steam inlet 304.
Claims (8)
1. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system, including connected successively by least two effects
The multiple-effect forced circulation flash distillation plant that logical forced-circulation evaporator is constituted, often imitating forced-circulation evaporator includes dividing
From device, heater, circulating pump and feed liquid circulating line for feed liquid to be circulated between, set on heater
There are steam inlet and steam condensate outlet, it is characterised in that the steam condensate outlet of the first effect heater and sudden strain of a muscle
Cold tank is connected, and dodges cold tank top by the forced-circulation evaporator after jet chimney and the second effect or/and the second effect
Heater steam inlet be connected, bottom is provided with condensate drain road.
2. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, dodge cold tank top being entered with the steam of the heater of the second effect forced-circulation evaporator by jet chimney
Mouth is connected.
3. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, the system also includes level controling mechanism, described level controling mechanism by controller, be arranged on
The liquid level sensor dodged on cold tank and the condensate pump composition being arranged on condensate drain road.
4. a kind of multi-effect forced circulation evaporation device condensed water flash recuperation of heat system according to claim 1 or 3
System, it is characterised in that described condensate drain road is connected with the boiler of the raw steam of manufacture.
5. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, the pipeline between the separator and circulating pump of described forced-circulation evaporator is provided with feed liquid and enters
Mouthful, the exit of circulating pump is provided with material liquid outlet, material liquid outlet and the previous effect of latter effect forced-circulation evaporator
Liquor inlet is connected by pipeline；The liquor inlet of last effect forced-circulation evaporator is that the feed liquid of the system is entered
Mouthful, the material liquid outlet of the first effect forced-circulation evaporator is the material liquid outlet of the system.
6. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, being provided with steam (vapor) outlet at the top of described separator, the steam of previous effect forced-circulation evaporator goes out
Mouth is connected with the steam inlet of latter effect；The steam inlet of the first effect forced-circulation evaporator is the raw steam of the system
Import, the steam (vapor) outlet of last effect forced-circulation evaporator is connected to condenser.
7. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, the steam condensate outlet of the forced-circulation evaporator after the second effect and the second effect connects steaming respectively
Vapour condensate collector tube road, condensate collector tube road is passed through fruit cleaning unit, and steam condensate is used for into fruit
Cleaning.
8. a kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system according to claim 1,
Characterized in that, the upper low head of the described cold tank of sudden strain of a muscle is ellipse head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967984.5A CN106890472A (en) | 2015-12-21 | 2015-12-21 | A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967984.5A CN106890472A (en) | 2015-12-21 | 2015-12-21 | A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system |
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| CN106890472A true CN106890472A (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510967984.5A Pending CN106890472A (en) | 2015-12-21 | 2015-12-21 | A kind of multi-effect forced circulation evaporation device condensed water flash heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115532197A (en) * | 2022-11-30 | 2022-12-30 | 南通星球石墨股份有限公司 | MVR multiple-effect evaporation condensate water recovery system |
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| CN101486770A (en) * | 2009-02-18 | 2009-07-22 | 山东华义玉米科技有限公司 | Method and equipment for utilizing waste heat from corn starch production |
| CN202315356U (en) * | 2011-11-30 | 2012-07-11 | 甘肃赫原生物制品有限公司 | Step circulation recovery device of waste heat in xylose production |
| CN202410200U (en) * | 2012-02-14 | 2012-09-05 | 湖北三江化工有限责任公司 | Quadruple-effect evaporation countercurrent flow heat exchange energy-saving system |
| CN103566605A (en) * | 2013-11-20 | 2014-02-12 | 广西罗城科潮基业科技发展有限公司 | Treatment equipment and treatment method of molasses alcohol waste liquid |
| CN204159044U (en) * | 2014-10-24 | 2015-02-18 | 湖北裕丰生物科技有限公司 | The cold tank of a kind of sudden strain of a muscle with vapor-recovery system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486770A (en) * | 2009-02-18 | 2009-07-22 | 山东华义玉米科技有限公司 | Method and equipment for utilizing waste heat from corn starch production |
| CN202315356U (en) * | 2011-11-30 | 2012-07-11 | 甘肃赫原生物制品有限公司 | Step circulation recovery device of waste heat in xylose production |
| CN202410200U (en) * | 2012-02-14 | 2012-09-05 | 湖北三江化工有限责任公司 | Quadruple-effect evaporation countercurrent flow heat exchange energy-saving system |
| CN103566605A (en) * | 2013-11-20 | 2014-02-12 | 广西罗城科潮基业科技发展有限公司 | Treatment equipment and treatment method of molasses alcohol waste liquid |
| CN204159044U (en) * | 2014-10-24 | 2015-02-18 | 湖北裕丰生物科技有限公司 | The cold tank of a kind of sudden strain of a muscle with vapor-recovery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115532197A (en) * | 2022-11-30 | 2022-12-30 | 南通星球石墨股份有限公司 | MVR multiple-effect evaporation condensate water recovery system |
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Application publication date: 20170627 |
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