CN103697458B - Condensate recycling process and equipment - Google Patents
Condensate recycling process and equipment Download PDFInfo
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- CN103697458B CN103697458B CN201310727378.7A CN201310727378A CN103697458B CN 103697458 B CN103697458 B CN 103697458B CN 201310727378 A CN201310727378 A CN 201310727378A CN 103697458 B CN103697458 B CN 103697458B
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention relates to condensate recycling process and equipment. Gas-liquid-separated high-temperature condensate is fed into a flash evaporation tank through a pipeline and forms flash steam and condensate (100 DEG C) in the flash evaporation tank under low pressure, the condensate is cooled and discharged for being reused, and the flash steam enters the next procedure; the flash steam enters a vacuum concentration tank through a pipeline, the flash steam is subjected vacuum concentration to generate waste steam and condensate, and the waste steam and the condensate enters the next procedures; the waste steam in the concentration tank is discharged into an air cooler through a pipeline and is subjected to air cooling to form water, and the water is discharged into a water collecting tank through a pipeline; the condensate in the concentration tank is discharged into a condensate recycling machine through a pipeline, and the condensate is fed back into a boiler through the condensate recycling machine. Compared with the prior art, the condensate recycling process and equipment is high in condensate recycling efficiency and good in effect, energy and water resources are saved greatly, production cost is lowered, and the like.
Description
technical fieldthe present invention relates to a kind of recovery process and equipment of condensed water.
background technologyin the field such as feed manufacturing, textile printing, boiler frequency of utilization is more, the condensed water (temperature is at 120-130 DEG C) that the steam that boiler produces gets off a large amount of by equipment such as pipeline supply precooker and drying machine etc. through heat exchange meeting condensation, traditional approach is directly discharged through steam trap by condensed water, this just causes the serious energy and the waste of water resource, for reducing these wastes, manufacturing enterprise takes to collect unified for these high-temperature condensation waters, then return boiler or other use heat place through condensation water reclaiming machine, realize working cycles.Current manufacturing enterprise takes open type water collect tank to realize the recovery of condensed water substantially, when utilizing open type water collect tank to collect high-temperature condensation water, due to condensed water enter water collect tank after pressure reduce suddenly, then can produce a large amount of secondary flash vapour in water collect tank, residue condensate temperature is greatly about about 100 DEG C, and existing condensation water reclaiming machine reclaims water temperature at about 70 DEG C, for preventing transportation water pump cavitation and causing Pollution of Boiler, need to dissipate flash steam or be blended into cold water could reclaim, this not only makes flash steam be wasted, and organic efficiency is low, there will be air during heat radiation enters in recovery channel, the fouling of boiler can be increased after injecting boiler, reduce the service life of boiler.
summary of the inventionthe object of the present invention is to provide a kind of flash steam reuse that effectively can realize producing when high-temperature condensation water reclaims, condensing hot air furnace efficiency is high, effective, economize energy and water resource greatly, reduce production cost, the Processes and apparatus of the condensing hot air furnace value of environmental protection of condensed water and economic worth combined effectively recycling.
A kind of condensing hot air furnace technique that the present invention proposes, the steam supply precooker that boiler mainly produces by it and the indirect steam that the condensed water (120-130 DEG C) that drying machine condensation after heat exchange is got off produces carry out reuse, and technique is as follows:
(1) vapor-liquid separation
High-temperature condensation water is squeezed in flash tank by pipeline, and high-temperature condensation water is depression formation flash steam and condensed water (100 DEG C) in flash tank, and discharge utilization after condensed water cooling, flash steam enters next procedure;
(2) Vacuum Concentration
Flash steam enters vacuum concentration pot through pipeline, and flash steam produces exhaust steam and condensed water through Vacuum Concentration, and Vacuum Concentration temperature is 60 ~ 80 DEG C, and vacuum is-0.095 ~-0.085MPa, and exhaust steam and condensed water enter next procedure respectively;
(3) vapour-liquid reclaims
A) exhaust steam in concentration tank enters in air cooler by pipeline, water is formed through vacuum cooled, chilling temperature is 35 ~ 45 DEG C, vacuum is-0.095 ~-0.085MPa, water is entered in water collect tank by pipeline and collects, for making exhaust steam vacuum effectiveness better, best water collect tank is communicated with the vavuum pump playing and improve air cooler vacuum effectiveness;
B) condensed water (75 ~ 85 DEG C) in concentration tank enters in condensation water reclaiming machine through pipeline, returns boiler through condensation water reclaiming machine.
A kind of condensing hot air furnace recycling equipment that the present invention proposes, it mainly includes flash tank, pipeline, concentration tank, air cooler, water collect tank, vavuum pump and condensation water reclaiming machine, wherein flash tank is communicated with several high-temperature condensation water pipelines, described flash tank is also communicated with flash steam main pipeline, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, it is also connected with several flash steam branch pipe(tube)s, and described each flash steam branch pipe(tube) is communicated with concentration tank respectively by the valvular conduit of some bands; Valve established by flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube); Above-mentioned each concentration tank is communicated with exhaust steam respectively by the valvular pipeline of band, and one end of this exhaust steam main pipeline is blind end, and the other end is with valvular conduit to be connected with air cooler air inlet by several; The delivery port of described air cooler is by the valvular conduit of some bands and cross current, one end of water pipe is communicated with air cooler, the other end is communicated with the water collect tank of in water collect tank group, the valvular pipeline communication of band is passed through between each water collect tank in described water collect tank group, and on the water collect tank communicated with air cooler, establish some drainage pipelines, these drainage pipelines all establish vavuum pump; Above-mentioned each concentration tank is communicated with condensed water branch pipe(tube) by the valvular conduit of band, condensed water branch pipe(tube) one end is connected with concentration tank, the other end is communicated with condensed water main pipeline by the valvular conduit of band, the two ends of described condensed water main pipeline are blind end, it is also communicated with the water inlet of some condensation water reclaiming machines respectively by the valvular conduit of band, and the condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve; The delivery port of above-mentioned every platform condensation water reclaiming machine is communicated with the water inlet of boiler respectively by pipeline.
The condensed water that the steam that boiler produces by the present invention is got off through heat exchange condensation by pipeline supply precooker and drying machine is recycled, discharge after condensation water collection in flash tank and utilize, the flash steam produced in it forms condensed water again through concentrated, boiler is returned through concentrating the condensed water got off by recycling machine after again flash steam being reclaimed, this equipment operationally, high-temperature condensation water is discharged by hot equipment, again the flash steam except a condensed water of recoverable is formed time condensation water, once re-inject boiler to finish the work circulation with time condensation water.
The present invention compared with prior art tool has the following advantages:
The utilization again of the flash steam produced when 1, effectively realizing condensing hot air furnace, significantly improves the organic efficiency of condensed water, greatly saves production cost and energy resource consumption;
2, the waste of water resource is effectively avoided, the condensing hot air furnace rate of this equipment can reach about 96%, as calculated, every day general 1104.16 tons, recyclable water, every year can using water wisely 13.25 ten thousand tons, save fuel about 20% after docking with boiler, every day, the amount of being sparing in the use of coal was about 63 tons simultaneously, and year saves coal consumption about 7560 tons;
3, the service life of equipment such as prolonged boiler, the present invention can avoid the dissolved gas such as oxygen, carbon dioxide to the pollution of condensed water, eliminate oxygen corrosion, extend boiler and pipeline service life, condensed water is not containing harmful components such as bird nests, alleviate gyp, effective prolonged boiler and thermo-mechanical equipment service life.
4, cavitation-preventive, the delivery pump cavitation erosion problem brought of dispelling the heat when solving tradition recovery condensed water.
5, automaticity, being combined with boiler finishes the work circulates, and ensures the stability of boiler operatiopn, effectively reduces the labour intensity of workman.
accompanying drawing explanationfig. 1 is the overall structure schematic diagram of condensing hot air furnace recycling equipment.
detailed description of the inventionjust by reference to the accompanying drawings invention is elaborated below
Embodiment 1 one kinds of condensing hot air furnace recycling equipment, as shown in Figure 1, flash tank 1 is communicated with several high-temperature condensation water pipelines 2, flash tank is communicated with flash steam main pipeline 3, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, it is also connected with several flash steam branch pipe(tube)s 4, and described each flash steam branch pipe(tube) is communicated with concentration tank 6 respectively by the valvular conduit 5 of some bands; Valve 7 established by flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube); Above-mentioned each concentration tank is communicated with exhaust steam pipeline 9 respectively by the valvular pipeline 8 of band, and one end of this exhaust steam pipeline is blind end, and the other end is with valvular conduit 10 to be connected with air cooler 11 air inlet by several; The delivery port of described air cooler is communicated with water pipe 13 by the valvular conduit 12 of some bands, one end of water pipe is communicated with air cooler, the other end is communicated with the water collect tank of in water collect tank group 14, be communicated with by the valvular pipeline 15 of band between each water collect tank in described water collect tank group, and on the water collect tank communicated with air cooler, establish some drainage pipelines 16, vavuum pump 17 all established by these drainage pipelines; Above-mentioned each concentration tank is communicated with condensed water branch pipe(tube) 19 by the valvular conduit 18 of band, condensed water branch pipe(tube) one end is connected with concentration tank, the other end is communicated with condensed water main pipeline 21 by the valvular conduit 20 of band, the two ends of described condensed water main pipeline are blind end, it is also communicated with the water inlet of some condensation water reclaiming machines 23 respectively by the valvular conduit 22 of band, and the condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve 24; The delivery port of above-mentioned every platform condensation water reclaiming machine is communicated with respectively by the water inlet of pipeline 25 with boiler 26.
The assembly such as air cooler, vavuum pump, condensation water reclaiming machine, agitator tank and the mechanical pump etc. that form above-mentioned condensing hot air furnace recycling equipment are the conventional products that market is sold, such as, air cooler is the model that Yantai Cabeo Heat Exchanger Co., Ltd. produces: ACHSD086KB-6N-30D180-H air cooler, and condensation water reclaiming machine is the model that Yongtai, Qingdao boiler Co., Ltd produces: YTLH-25 condensation water reclaiming machine.
The condensing hot air furnace recycling technique that embodiment 2 one kinds is completed by embodiment 1 is as follows:
As shown in Figure 1, high-temperature condensation water is squeezed in flash tank 1 by pipeline 2, high-temperature condensation water is depression formation flash steam and condensed water (100 DEG C) in flash tank, utilization is discharged after condensed water cooling, flash steam is through flash steam main pipeline 3, flash steam branch pipe(tube) 4 and conduit 5 enter vacuum concentration pot 6, flash steam produces exhaust steam and condensed water through Vacuum Concentration, Vacuum Concentration temperature is 85 DEG C, vacuum is-0.09 MPa, time is 1h, exhaust steam in concentration tank is by pipeline 8, exhaust steam pipeline 9 and conduit 10 enter in air cooler 11, water is formed through vacuum cooled, chilling temperature is 40 DEG C, vacuum is-0.085 MPa, water is entered in water collect tank 14 by conduit 12 and water pipe 13 and collects, the vavuum pump 17 that water collect tank is communicated with plays and improves air cooler vacuum effectiveness, condensed water (80 DEG C) in concentration tank enters in condensation water reclaiming machine 23 through conduit 18, condensed water branch pipe(tube) 19, conduit 20, condensed water main pipeline 21 and conduit, returns boiler 26 finally by condensation water reclaiming machine.
Claims (4)
1. a condensing hot air furnace recycling equipment, comprise flash tank, pipeline, concentration tank, air cooler, water collect tank, vavuum pump and condensation water reclaiming machine, it is characterized in that: described flash tank is communicated with high-temperature condensation water pipeline, described flash tank is also communicated with flash steam main pipeline, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, flash steam main pipeline is also connected with flash steam branch pipe(tube), and described each flash steam branch pipe(tube) is communicated with concentration tank respectively by the valvular conduit of band, valve established by flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube), above-mentioned each concentration tank is communicated with exhaust steam respectively by the valvular pipeline of band, and one end of this exhaust steam main pipeline is blind end, and the other end is connected with air cooler air inlet by the valvular conduit of band, the delivery port of described air cooler is by the valvular conduit of band and cross current, one end of water pipe is communicated with air cooler, the other end is communicated with the water collect tank of in water collect tank group, the valvular pipeline communication of band is passed through between each water collect tank in described water collect tank group, and on the water collect tank communicated with air cooler, establish drainage pipeline, above-mentioned each concentration tank is communicated with condensed water branch pipe(tube) by the valvular conduit of band, condensed water branch pipe(tube) one end is connected with concentration tank, the other end is communicated with condensed water main pipeline by the valvular conduit of band, the two ends of described condensed water main pipeline are blind end, it is also communicated with the water inlet of condensation water reclaiming machine respectively by the valvular conduit of band, condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve, the delivery port of above-mentioned every platform condensation water reclaiming machine is communicated with the water inlet of boiler respectively by pipeline.
2. condensing hot air furnace recycling equipment according to claim 1, is characterized in that: the described drainage pipeline communicated with cooling all establishes vavuum pump.
3. a condensing hot air furnace recycling technique, is characterized in that:
(1) vapor-liquid separation
High-temperature condensation water is squeezed in flash tank by pipeline, the condensed water of high-temperature condensation water depression formation flash steam and 100 DEG C in flash tank, and discharge utilization after condensed water cooling, flash steam enters next procedure;
(2) Vacuum Concentration
Flash steam enters vacuum concentration pot through pipeline, and flash steam produces exhaust steam and condensed water through Vacuum Concentration, and Vacuum Concentration temperature is 60 ~ 80 DEG C, and vacuum is-0.095 ~-0.085MPa, and exhaust steam and condensed water enter next procedure respectively;
(3) vapour-liquid reclaims
A) exhaust steam in concentration tank enters in air cooler by pipeline, and form water through vacuum cooled, chilling temperature is 35 ~ 45 DEG C, and vacuum is-0.095 ~-0.085MPa, and water is entered in water collect tank by pipeline and collects;
B) condensed water in concentration tank enters in condensation water reclaiming machine through pipeline, returns boiler through condensation water reclaiming machine.
4. a kind of condensing hot air furnace recycling technique according to claim 3, is characterized in that: water collect tank is communicated with the vavuum pump playing and improve air cooler vacuum effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727378.7A CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727378.7A CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
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| Publication Number | Publication Date |
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| CN103697458A CN103697458A (en) | 2014-04-02 |
| CN103697458B true CN103697458B (en) | 2015-04-15 |
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| CN201310727378.7A Expired - Fee Related CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105919433A (en) * | 2016-05-24 | 2016-09-07 | 平湖科能电器技术有限公司 | Steam recycling device |
Citations (6)
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|---|---|---|---|---|
| FR2489944A1 (en) * | 1980-09-05 | 1982-03-12 | Gen Electric | Recovery of waste, from pressurised steam condensate - by flashing off steam in flash tank and recondensing by contact with water |
| CN101880983A (en) * | 2010-06-20 | 2010-11-10 | 九江九洲节能环保工程有限公司 | Inspissation treating method and device for black liquor |
| 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 |
| CN202902258U (en) * | 2012-12-02 | 2013-04-24 | 日照绿瓦能源科技有限公司 | Closed-type condensation water recovery system of steam thermodynamic system |
| CN203309887U (en) * | 2013-05-21 | 2013-11-27 | 山东宏信化工股份有限公司 | Closed recovery system for high-temperature condensation water |
| CN203757692U (en) * | 2013-12-26 | 2014-08-06 | 龙源海洋生物股份有限公司 | Condensate recycling and reusing equipment |
-
2013
- 2013-12-26 CN CN201310727378.7A patent/CN103697458B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489944A1 (en) * | 1980-09-05 | 1982-03-12 | Gen Electric | Recovery of waste, from pressurised steam condensate - by flashing off steam in flash tank and recondensing by contact with water |
| CN101880983A (en) * | 2010-06-20 | 2010-11-10 | 九江九洲节能环保工程有限公司 | Inspissation treating method and device for black liquor |
| 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 |
| CN202902258U (en) * | 2012-12-02 | 2013-04-24 | 日照绿瓦能源科技有限公司 | Closed-type condensation water recovery system of steam thermodynamic system |
| CN203309887U (en) * | 2013-05-21 | 2013-11-27 | 山东宏信化工股份有限公司 | Closed recovery system for high-temperature condensation water |
| CN203757692U (en) * | 2013-12-26 | 2014-08-06 | 龙源海洋生物股份有限公司 | Condensate recycling and reusing equipment |
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