CN104930873A - Dead steam recovery technique - Google Patents
Dead steam recovery technique Download PDFInfo
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- CN104930873A CN104930873A CN201510300261.XA CN201510300261A CN104930873A CN 104930873 A CN104930873 A CN 104930873A CN 201510300261 A CN201510300261 A CN 201510300261A CN 104930873 A CN104930873 A CN 104930873A
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Abstract
The invention discloses a dead steam recovery technique which comprises the steps that dead steam from various devices performs heat exchange with cold demineralized water from a boiler via a spiral tube heat exchanger, then enters a condensed water buffer tank, and then enters a condensate pump; driving steam is subjected to impurity filtering by a Y-shaped filter, and then divided into two routes; condensate water generated by the steam in pipelines is sent into the condensate water buffer tank by adjustment of a static force steam trap and a ball valve; the steam is sent to the condensate pump; pressure in the condensate pump is increased due to the entering steam, to allow an inlet check valve of the pump to be closed and an outlet check valve of the pump to be opened; and the condensate water is sent out and recovered. According to the dead steam recovery technique, the dead steam is fully recovered by adopting a secondary condensation method, and the dead steam recovery technique has the advantages of little investment, fast effect, few floor area, etc.
Description
Technical field
The present invention relates to a kind of exhaust steam recovery process, particularly relate to exhaust steam recovery process in the various steaming plant such as refinery, power plant and technique.
Background technology
Due to rising steadily of energy prices, domestic coal price is also unprecedented soaring, and economize energy, reduction entreprise cost become each enterprise task the most urgent.And a large amount of Industrial Boiler of enterprise, station boiler are in operation and are equipped with boiler that oxygen-eliminating device and boiler circuit be equipped with and surely arrange flash vessel and hydrophobic development unit produces a large amount of low-pressure steams, flash steam (exhaust steam) outwards discharges.In addition, a lot of enterprise is in the process using steam, and the reason due to technique can produce the low-pressure steam of a lot of discharge, causes great energy loss and waste, reclaims economic worth huge.As this type of there being the exhaust steam of recovery value rationally to recycle, economic worth clearly.
Summary of the invention
The object of the present invention is to provide a kind of exhaust steam recovery process.
Technical scheme of the present invention is as follows.
The exhaust steam that various device comes is after the cold demineralized water of about 20 DEG C that spiral tube exchanger and boiler come carries out heat exchange, and enter condensed water surge tank, condensed water enters condensate pump again; After driving steam to filter out impurity by y-type filter, be divided into two-way, the condensate water driving steam to produce in pipeline is regulated by static(al) drain valve and ball valve and enters condensed water surge tank, steam is driven directly to enter in condensate pump pump by condensate pump pump cover inlet valve, entering of steam is driven the pressure in pump to be increased condensate pump inlet check valve is closed, outlet non-return valve is opened, condensate water is discharged by outlet non-return valve, and fixed gas utilizes the pressure in pump to be released by air bleeding valve and blow-down pipe.When in condensate pump pump, pressure drops to identical with inlet pipeline, inlet check valve can be opened again, and condensate water can enter again in pump and start next circulation.
Described exhaust steam can be that boiler heating power deaerator exhaust or boiler are determined platoon flash vessel steam discharge or heating equipment end steam discharge or industrial turbine steam discharge or paper plant's rotary spherical digester steam discharge or had the technique steam discharge of recovery value.
Described driving steam is the pressurized vapor of boiler manfacturing, and its pressure is 1.25MPa-0.5MPa etc.
It is one-level condensation that described exhaust steam carries out heat exchange through the cold demineralized water that spiral tube exchanger and boiler come; Condensate water surge tank, condensate pump and control valve etc. is adopted to carry out B-grade condensation again.
Exhaust steam recovery process of the present invention can 100% high efficiente callback exhaust steam.There is the advantages such as investment is little, instant effect, floor space are few.The recovery of all kinds of device discharge exhaust steam such as can being widely used in oxygen-eliminating device, determining platoon flash vessel, be hydrophobic, and the recovery of all kinds of technique discharged steam.Huge economic benefit can be created, improve the production environment of enterprise for enterprise, provide sound assurance for industry energy conservation reduces discharging.
Exhaust steam recovery process of the present invention, not only eliminates power plant or the thermal pollution of plant area of refinery, also eliminates secondary vapour and discharges the audible noise that sends and the corrosion to neighbouring equipment.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention
1-spiral tube exchanger; 2-condensed water surge tank; 3-condensate pump; 4-screw thread ball valve (or pressure-reducing valve); 5-Y type filter; 6-static(al) drain valve; 7-ball valve; 8-pump cover inlet valve; 9-outlet non-return valve; 10-inlet check valve; 11-air bleeding valve.
Detailed description of the invention
The exhaust steam that various device comes is after the cold demineralized water of about 20 DEG C that spiral tube exchanger 1 and boiler come carries out heat exchange, and enter condensed water surge tank 2, condensed water enters condensate pump 3 again, after driving steam to filter out impurity by the adjustment of screw thread ball valve (or pressure-reducing valve) 4 and y-type filter 5, be divided into two-way, the condensate water driving steam to produce in pipeline is regulated by static(al) drain valve 6 and ball valve 7 and enters condensed water surge tank 2, steam is driven directly to enter in condensate pump 3 pump by condensate pump 3 pump cover inlet valve 8, entering of steam is driven the pressure in pump to be increased condensate pump 3 inlet check valve 10 is closed, outlet non-return valve 9 is opened, condensate water is discharged by outlet non-return valve 9, fixed gas utilizes the pressure in pump to be released by air bleeding valve 11 and blow-down pipe.When in condensate pump 3 pump, pressure drops to identical with inlet pipeline, inlet check valve 10 can be opened again, and condensate water can enter again in pump and start next circulation.
Exhaust steam recovery process of the present invention, reclaims the exhaust steam of 1 ton/hour, can save Mixture Density Networks (5000 ~ 5500kcal/kg) 1200 ~ 1300 tons/year.
Claims (4)
1. an exhaust steam recovery process, its technological process is: the exhaust steam that various device comes is after the cold demineralized water of about 20 DEG C that spiral tube exchanger and boiler come carries out heat exchange, and enter condensed water surge tank, condensed water enters condensate pump again; After driving steam to filter out impurity by y-type filter, be divided into two-way, the condensate water driving steam to produce in pipeline is regulated by static(al) drain valve and ball valve and enters condensed water surge tank, steam is driven directly to enter in condensate pump pump by condensate pump pump cover inlet valve, entering of steam is driven the pressure in pump to be increased condensate pump inlet check valve is closed, outlet non-return valve is opened, condensate water is discharged by outlet non-return valve, and fixed gas utilizes the pressure in pump to be released by air bleeding valve and blow-down pipe; When in condensate pump pump, pressure drops to identical with inlet pipeline, inlet check valve can be opened again, and condensate water can enter again in pump and start next circulation.
2. a kind of exhaust steam recovery process as claimed in claim 1, is characterized in that described exhaust steam can be that boiler heating power deaerator exhaust or boiler are determined platoon flash vessel steam discharge or heating equipment end steam discharge or industrial turbine steam discharge or paper plant's rotary spherical digester steam discharge or had the technique steam discharge of recovery value.
3. a kind of exhaust steam recovery process as claimed in claim 1, it is characterized in that exhaust steam is reclaimed by B-grade condensation, adopt spiral tube exchanger and cold demineralized water heat exchange to be one-level condensation, then adopt condensate water surge tank, condensate pump and control valve etc. to carry out B-grade condensation.
4. a kind of exhaust steam recovery process as claimed in claim 1, it is characterized in that driving steam is the pressurized vapor of boiler manfacturing, pressure is 1.25MPa-0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300261.XA CN104930873A (en) | 2015-06-04 | 2015-06-04 | Dead steam recovery technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300261.XA CN104930873A (en) | 2015-06-04 | 2015-06-04 | Dead steam recovery technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104930873A true CN104930873A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510300261.XA Pending CN104930873A (en) | 2015-06-04 | 2015-06-04 | Dead steam recovery technique |
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| CN (1) | CN104930873A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606916A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Sulfur melting steam recovery and utilization apparatus |
| CN107461732A (en) * | 2017-08-07 | 2017-12-12 | 山东胜星化工有限公司 | A kind of efficiently factory's steam exhaust recovering device |
| CN108716862A (en) * | 2018-07-10 | 2018-10-30 | 广州元印环境科技有限公司 | A kind of pressure swing type steam circulation system |
| CN114659381A (en) * | 2022-03-23 | 2022-06-24 | 中国石油化工股份有限公司 | Steam heat exchanger condensate water discharge device and condensate water discharge method |
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| CN2835804Y (en) * | 2005-07-26 | 2006-11-08 | 杨君廷 | Dead steam and condensed water recovering system |
| CN201844197U (en) * | 2010-05-11 | 2011-05-25 | 北京拓峰科技开发有限责任公司 | Condensation water recycling and residual heat using device |
| JP2011191003A (en) * | 2010-03-15 | 2011-09-29 | Tlv Co Ltd | Exhaust steam recovery device |
| CN202768090U (en) * | 2012-09-18 | 2013-03-06 | 北京创时能源有限公司 | Recovery system of dead steam waste heat |
| CN103292610A (en) * | 2012-02-27 | 2013-09-11 | 北大工学院绍兴技术研究院 | Recycling system for energies of exhaust steam of power plant |
| CN203848705U (en) * | 2014-05-13 | 2014-09-24 | 阿姆斯壮机械（中国）有限公司 | Exhausted steam recycling system |
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2015
- 2015-06-04 CN CN201510300261.XA patent/CN104930873A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835804Y (en) * | 2005-07-26 | 2006-11-08 | 杨君廷 | Dead steam and condensed water recovering system |
| JP2011191003A (en) * | 2010-03-15 | 2011-09-29 | Tlv Co Ltd | Exhaust steam recovery device |
| CN201844197U (en) * | 2010-05-11 | 2011-05-25 | 北京拓峰科技开发有限责任公司 | Condensation water recycling and residual heat using device |
| CN103292610A (en) * | 2012-02-27 | 2013-09-11 | 北大工学院绍兴技术研究院 | Recycling system for energies of exhaust steam of power plant |
| CN202768090U (en) * | 2012-09-18 | 2013-03-06 | 北京创时能源有限公司 | Recovery system of dead steam waste heat |
| CN203848705U (en) * | 2014-05-13 | 2014-09-24 | 阿姆斯壮机械（中国）有限公司 | Exhausted steam recycling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606916A (en) * | 2015-10-26 | 2017-05-03 | 安徽华尔泰化工股份有限公司 | Sulfur melting steam recovery and utilization apparatus |
| CN107461732A (en) * | 2017-08-07 | 2017-12-12 | 山东胜星化工有限公司 | A kind of efficiently factory's steam exhaust recovering device |
| CN108716862A (en) * | 2018-07-10 | 2018-10-30 | 广州元印环境科技有限公司 | A kind of pressure swing type steam circulation system |
| CN108716862B (en) * | 2018-07-10 | 2024-02-09 | 广州元印环境科技有限公司 | Pressure-variable steam thermodynamic cycle system |
| CN114659381A (en) * | 2022-03-23 | 2022-06-24 | 中国石油化工股份有限公司 | Steam heat exchanger condensate water discharge device and condensate water discharge method |
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Application publication date: 20150923 |