CN103438428A - Closed steam condensate water high-temperature recovery system - Google Patents
Closed steam condensate water high-temperature recovery system Download PDFInfo
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- CN103438428A CN103438428A CN2013103757343A CN201310375734A CN103438428A CN 103438428 A CN103438428 A CN 103438428A CN 2013103757343 A CN2013103757343 A CN 2013103757343A CN 201310375734 A CN201310375734 A CN 201310375734A CN 103438428 A CN103438428 A CN 103438428A
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Abstract
The invention provides a closed steam condensate water high-temperature recovery system in order to solve the problems that for a closed recovery system in the prior art, secondary steam in a recovery closed tank can not be effectively pumped out, waste heat can not be completely recovered, and consequentially water resource waste is caused and the service life and the heat exchanging efficiency of a boiler are severely affected. According to the closed steam condensate water high-temperature recovery system, low-temperature cold water is not adopted for spraying high-temperature condensate water in the recovery closed tank, a recovery distribution unit is arranged on an outlet of a delivery pipeline of steam-water mixture composed of the high-temperature condensate water and the secondary steam to separate the high-temperature condensate water and the secondary steam in the steam-water mixture, the secondary steam and power steam are mixed and matched to a heating medium of a thermal deaerator and delivered to the thermal deaerator, and the high-temperature condensate water is delivered to the boiler after being processed in a deironing mode through a deironing device. The closed steam condensate water high-temperature recovery system has the advantages that heat of the secondary steam and the high-temperature condensate water is fully utilized, operation of the system and conservation of resources are facilitated, the service life of the boiler is favorable for being prolonged, and the heat exchanging efficiency of the boiler is favorable for being improved.
Description
Technical field
The present invention relates to a kind of closed reclamation of condensate water technology, specially refer to a kind of closed steam condensate (SC) high temperature recovery system.
Background technology
In industrial production, usually use high-temperature steam through heat transmission equipment, some raw material or semi-finished product to be heated, steam after heat exchange forms the steam water interface of high-temperature condensation water and indirect steam composition usually, system is reclaimed above-mentioned steam water interface, be about to again send into boiler after its liquefy water, be heated into steam and again send into heat transmission equipment, circulating with this.Described indirect steam refers in recovery system the steam that aqueous water with higher temperature forms again under certain condition.The way of recycling of the steam water interface that at present, high-temperature condensation water and indirect steam form mainly contains Recovery with Open-loop and enclosed reclaims two classes.The Recovery with Open-loop system, the steam water interface gathering-device that high-temperature condensation water and indirect steam form directly communicates with atmosphere, and indirect steam enters atmosphere loss heat energy, and easily polluted water causes corrosive pipeline, seldom adopts now.The enclosed recovery system, the steam water interface gathering-device that high-temperature condensation water and indirect steam form is arranged on and reclaims in vapor tight tank, and adopt low-temperature cold water to be sprayed the steam water interface reclaimed in vapor tight tank, the indirect steam cooling is absorbed, then send boiler back to by water pump.When the indirect steam pressure in reclaiming vapor tight tank reclaims the pressure at condensed water place higher than drain valve, be that so-called back pressure is when higher, take, at pump outlet, water-jetting steam extractor (being water-vapour injector) is installed, utilize the high-temperature condensation water after pressurizeing to flow to aspirate indirect steam, make the pressure that reclaims indirect steam in vapor tight tank decrease, thereby be conducive to the recovery of steam water interface.And water-jetting steam extractor is a kind of hybrid heating device, its principle is utilize water at low temperature suction steam and absorb the heat in steam, makes the water at low temperature of import become high-temperature-hot-water and sends.The water temperature of import is lower, and the heating steam needed is just more, extracts quantity of steam also just larger.In prior art enclosed recovery system, usually using and reclaim high-temperature condensation water in vapor tight tank as power water, its temperature is higher, suction capactity is very limited, can't effectively extract the indirect steam reclaimed in vapor tight tank out, cause the pressure that reclaims vapor tight tank higher, increase hydrophobic back pressure, make the equipment can't be normally hydrophobic.The indirect steam that the water-jetting steam extractor injection enters in condensed water can't be absorbed fully by high-temperature condensation water, can cause in the condensed water conveyance conduit with steam.Steam water interface is carried together, likely causes water attack and the vibrations of pipeline, has certain potential safety hazard.In addition, will spray after water at low temperature is mixed with high-temperature condensation water generate in warm water be transported to boiler, because the middle warm water amount generated is greater than the rate of water make-up of boiler, cause too much middle warm water to be consumed by boiler, final or in line.Not only there is no complete recovery waste heat, also caused the waste of water resource.Have, in prior art closed recovery system, at condensed water, reclaim on the pipeline of carrying deironing apparatus is not set, the materials such as the iron rust be mingled with in condensed water together are transported to boiler with condensed water, have a strong impact on service life and the heat exchange efficiency of boiler.Obviously, prior art closed recovery system exists can't effectively extract the indirect steam reclaimed in vapor tight tank out, and recovery waste heat has also caused the waste of water resource and had a strong impact on service life of boiler and the problem such as heat exchange efficiency fully.
Summary of the invention
Can't effectively extract for what solution prior art enclosed recovery system existed the indirect steam reclaimed in vapor tight tank out, recovery waste heat has also caused the waste of water resource and has had a strong impact on service life of boiler and the problem such as heat exchange efficiency fully, and the present invention proposes a kind of closed steam condensate (SC) high temperature recovery system.Closed steam condensate (SC) high temperature recovery system of the present invention does not adopt low-temperature cold water to be sprayed the high-temperature condensation water reclaimed in vapor tight tank, arrange in the exit of the steam water interface transfer pipeline formed by high-temperature condensation water and indirect steam and reclaim the dispensing unit, on the condensed water transfer pipeline, deironing apparatus is set; Reclaiming the dispensing unit is separated with indirect steam the high-temperature condensation water in steam water interface, indirect steam is mixed to dispensing with power steam for the heat medium of thermal deaerator and flow to thermal deaerator, high-temperature condensation water is transported to boiler after by the deironing apparatus deironing; Described recovery dispensing unit comprises steam-water separation tank, water collect tank and steam jet ejector; Steam-water separation tank is that closed structure and entrance are connected with the outlet of the steam water interface transfer pipeline of indirect steam composition with high-temperature condensation water, and the outlet at its top is connected with the suction inlet of steam jet ejector, and the outlet of its bottom is connected with the water collect tank entrance; The entrance of steam jet ejector is connected with power steam, and outlet is connected with the heating steam import of thermal deaerator; Water collect tank is that closed structure and outlet are connected with the deironing apparatus import; The outlet of deironing apparatus is connected with thermal deaerator deoxygenation import; Thermal deaerator deoxygenation outlet is connected with boiler inlet.
Further, closed steam condensate (SC) high temperature recovery system water collect tank of the present invention is provided with liquid level, temperature and pressure indicative control unit and safety valve; The liquid level indicative control unit is according to the unlatching of the water level controlled discharge pump in water collect tank or stop; Temperature and pressure indicative control unit give the alarm when surpassing setting value; Safety valve is automatically opened when the water collect tank internal pressure surpasses setting value.
The useful technique effect of closed steam condensate (SC) high temperature recovery system of the present invention is the heat that takes full advantage of indirect steam and high-temperature condensation water, is conducive to system operation and resources conservation.In addition, at the condensed water transfer pipeline, increase deironing apparatus, be conducive to improve service life and the heat exchange efficiency of boiler.
The accompanying drawing explanation
Accompanying drawing 1 is the structural representation of closed steam condensate (SC) high temperature recovery system of the present invention;
Accompanying drawing 2 is the structural representation of closed steam condensate (SC) high temperature recovery system steam-water separation tank of the present invention.
Accompanying drawing 3 is the structural representation of closed steam condensate (SC) high temperature recovery system water collect tank of the present invention.
Below in conjunction with the drawings and specific embodiments, closed steam condensate (SC) high temperature recovery system of the present invention is further described.
The specific embodiment
Accompanying drawing 1 is the structural representation of closed steam condensate (SC) high temperature recovery system of the present invention; Accompanying drawing 2 is the structural representation of closed steam condensate (SC) high temperature recovery system steam-water separation tank of the present invention, as seen from the figure, closed steam condensate (SC) high temperature recovery system of the present invention does not adopt low-temperature cold water to be sprayed the high-temperature condensation water reclaimed in vapor tight tank, arrange in the exit of the steam water interface transfer pipeline formed by high-temperature condensation water and indirect steam and reclaim the dispensing unit, on the condensed water transfer pipeline, deironing apparatus is set; Reclaiming the dispensing unit is separated with indirect steam the high-temperature condensation water in steam water interface, indirect steam is mixed to dispensing with power steam for the heat medium of thermal deaerator and flow to thermal deaerator, high-temperature condensation water is transported to boiler after by the deironing apparatus deironing; Described recovery dispensing unit comprises steam-water separation tank, water collect tank and steam jet ejector; Steam-water separation tank is that closed structure and entrance are connected with the outlet of the steam water interface transfer pipeline of indirect steam composition with high-temperature condensation water, and the outlet at its top is connected with the suction inlet of steam jet ejector, and the outlet of its bottom is connected with the water collect tank entrance; The entrance of steam jet ejector is connected with power steam, and outlet is connected with the heating steam import of thermal deaerator; Water collect tank is that closed structure and outlet are connected with the deironing apparatus import; The outlet of deironing apparatus is connected with thermal deaerator deoxygenation import; Thermal deaerator deoxygenation outlet is connected with boiler inlet.Be transported to through the steam water interface transfer pipeline steam water interface formed by high-temperature condensation water and indirect steam reclaimed in dispensing unit steam-water separation tank, in the situation that gravity and moment volume increase, a high-temperature condensation water and indirect steam position everywhere in steam-water separation tank, it is so-called flash separation, indirect steam mainly is distributed in the steam-water separation tank top, and high-temperature condensation water mainly is distributed in the steam-water separation tank bottom.Power steam produces negative pressure at suction inlet after entering steam jet ejector, by the indirect steam at steam-water separation tank top suck steam jet ejector and with enter thermal deaerator after power steam mixes, thermal deaerator is heated, effectively utilized the heat energy of indirect steam.The high-temperature condensation water of steam-water separation tank bottom is transported to water collect tank by pipeline and pump, then sends into the deironing apparatus deironing, sends into thermal deaerator, last, is transported to boiler.Closed steam condensate (SC) high temperature recovery system of the present invention does not adopt low-temperature cold water to be sprayed the high-temperature condensation water reclaimed in vapor tight tank, do not adopt water-jetting steam extractor suction indirect steam, can not produce the middle warm water amount of excess enthalpy, can not cause the waste of heat energy and water resource.With the prior art high-temperature condensation water recovery device, compare, closed steam condensate (SC) high temperature recovery system of the present invention can increase the energy-saving benefit of steam thermal system 10%～30%.In addition, closed steam condensate (SC) high temperature recovery system of the present invention arranges deironing apparatus on the condensed water transfer pipeline, and high-temperature condensation water is carried out sending into boiler after the deironing processing again, has reduced the impact of iron on boiler life and heat exchange efficiency.
Accompanying drawing 3 is the structural representation of closed steam condensate (SC) high temperature recovery system water collect tank of the present invention, and in figure, 1 is water collect tank, and 2 is the liquid level indicative control unit, and 3 is temperature and pressure indicative control unit, and 4 is safety valve, and 5 is the earial drainage pump, and 6 is delivery pump.As seen from the figure, closed steam condensate (SC) high temperature recovery system water collect tank of the present invention is provided with liquid level, temperature and pressure indicative control unit (2,3) and safety valve 4; Liquid level indicative control unit 2 is according to the unlatching of the water level controlled discharge pump 5 in water collect tank or stop; Temperature and pressure indicative control unit 3 give the alarm when surpassing setting value; Safety valve 4 is automatically opened when the water collect tank internal pressure surpasses setting value.Above-mentioned safety device can be when liquid level, temperature and pressure anomaly, send warning, automatically reduce the interior water level of water collect tank and automatic exhaust steam, make pressure and water level in water collect tank meet the setting requirement, effectively guarantee the safe operation of water collect tank and whole system.
Obviously, the useful technique effect of closed steam condensate (SC) high temperature recovery system of the present invention is the heat that takes full advantage of indirect steam and high-temperature condensation water, is conducive to system operation and resources conservation.In addition, at the condensed water transfer pipeline, increase deironing apparatus, be conducive to improve service life and the heat exchange efficiency of boiler.
Claims (2)
1. a closed steam condensate (SC) high temperature recovery system, it is characterized in that, this system does not adopt low-temperature cold water to be sprayed the high-temperature condensation water reclaimed in vapor tight tank, arrange in the exit of the steam water interface transfer pipeline formed by high-temperature condensation water and indirect steam and reclaim the dispensing unit, on the condensed water transfer pipeline, deironing apparatus is set; Reclaiming the dispensing unit is separated with indirect steam the high-temperature condensation water in steam water interface, indirect steam is mixed to dispensing with power steam for the heat medium of thermal deaerator and flow to thermal deaerator, high-temperature condensation water is transported to boiler after by the deironing apparatus deironing; Described recovery dispensing unit comprises steam-water separation tank, water collect tank and steam jet ejector; Steam-water separation tank is that closed structure and entrance are connected with the outlet of the steam water interface transfer pipeline of indirect steam composition with high-temperature condensation water, and the outlet at its top is connected with the suction inlet of steam jet ejector, and the outlet of its bottom is connected with the water collect tank entrance; The entrance of steam jet ejector is connected with power steam, and outlet is connected with the heating steam import of thermal deaerator; Water collect tank is that closed structure and outlet are connected with the deironing apparatus import; The outlet of deironing apparatus is connected with thermal deaerator deoxygenation import; Thermal deaerator deoxygenation outlet is connected with boiler inlet.
2. closed steam condensate (SC) high temperature recovery system according to claim 1, is characterized in that, water collect tank is provided with liquid level, temperature and pressure indicative control unit and safety valve; The liquid level indicative control unit is according to the unlatching of the water level controlled discharge pump in water collect tank or stop; Temperature and pressure indicative control unit give the alarm when surpassing setting value; Safety valve is automatically opened when the water collect tank internal pressure surpasses setting value.
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| CN2013103757343A CN103438428A (en) | 2013-08-27 | 2013-08-27 | Closed steam condensate water high-temperature recovery system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644589A (en) * | 2013-12-20 | 2014-03-19 | 大连汇能科技股份有限公司 | Efficient steam heat supply and waste heat recovering system |
| CN105299617A (en) * | 2015-11-09 | 2016-02-03 | 力克环保科技（昆山）有限公司 | Closed steam condensate recovery system |
| CN106224937A (en) * | 2016-08-23 | 2016-12-14 | 刘力 | A kind of steam generator heat-energy recovering apparatus and steam generator system |
| CN106594706A (en) * | 2015-10-19 | 2017-04-26 | 福建中锦新材料有限公司 | Closed recovery system for steam condensation water |
| CN107023820A (en) * | 2017-05-27 | 2017-08-08 | 北京疏水阀门厂 | A kind of condensing hot air furnace induction system and its method |
| CN107062930A (en) * | 2017-02-20 | 2017-08-18 | 赣州市净达生物新能源有限公司 | A kind of steam beneficial to boiler high temperature condensed water saves recovery system and its method |
| CN108731506A (en) * | 2018-08-09 | 2018-11-02 | 连云港久盛电力辅机有限公司 | Negative pressure suction type steam afterheat recovery device |
| CN115679751A (en) * | 2022-11-04 | 2023-02-03 | 浙江众鑫环保科技集团股份有限公司 | Automatic control type hot-pressing system with steam exhaust and energy saving functions and control method thereof |
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| CN201386995Y (en) * | 2009-03-26 | 2010-01-20 | 青岛瑞德新能源工程技术有限公司 | Condensed water flashing recycling device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644589A (en) * | 2013-12-20 | 2014-03-19 | 大连汇能科技股份有限公司 | Efficient steam heat supply and waste heat recovering system |
| CN103644589B (en) * | 2013-12-20 | 2016-05-18 | 大连汇能科技股份有限公司 | A kind of high-efficiency steam heat supply and residual neat recovering system |
| CN106594706A (en) * | 2015-10-19 | 2017-04-26 | 福建中锦新材料有限公司 | Closed recovery system for steam condensation water |
| CN106594706B (en) * | 2015-10-19 | 2020-07-24 | 福建中锦新材料有限公司 | Steam condensate water closed recovery system |
| CN105299617A (en) * | 2015-11-09 | 2016-02-03 | 力克环保科技（昆山）有限公司 | Closed steam condensate recovery system |
| CN105299617B (en) * | 2015-11-09 | 2017-11-14 | 力克环保科技（昆山）有限公司 | Closed steam condensate recovery system |
| CN106224937A (en) * | 2016-08-23 | 2016-12-14 | 刘力 | A kind of steam generator heat-energy recovering apparatus and steam generator system |
| CN107062930A (en) * | 2017-02-20 | 2017-08-18 | 赣州市净达生物新能源有限公司 | A kind of steam beneficial to boiler high temperature condensed water saves recovery system and its method |
| CN107023820A (en) * | 2017-05-27 | 2017-08-08 | 北京疏水阀门厂 | A kind of condensing hot air furnace induction system and its method |
| CN107023820B (en) * | 2017-05-27 | 2023-05-23 | 北京疏水阀门厂 | Condensate water recycling and conveying system and method thereof |
| CN108731506A (en) * | 2018-08-09 | 2018-11-02 | 连云港久盛电力辅机有限公司 | Negative pressure suction type steam afterheat recovery device |
| CN115679751A (en) * | 2022-11-04 | 2023-02-03 | 浙江众鑫环保科技集团股份有限公司 | Automatic control type hot-pressing system with steam exhaust and energy saving functions and control method thereof |
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Application publication date: 20131211 |