CN201121883Y - System for deoxidizing by heat power - Google Patents
System for deoxidizing by heat power Download PDFInfo
- Publication number
- CN201121883Y CN201121883Y CNU200720074156XU CN200720074156U CN201121883Y CN 201121883 Y CN201121883 Y CN 201121883Y CN U200720074156X U CNU200720074156X U CN U200720074156XU CN 200720074156 U CN200720074156 U CN 200720074156U CN 201121883 Y CN201121883 Y CN 201121883Y
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- thermal
- boiler
- deoxygenizing
- water
- thermal deoxygenizing
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Abstract
The utility model discloses a thermal deoxygenizing system, which comprises a thermal deoxygenizing device, a heat exchanger, a deoxygenizing water pump, an oilfield gas injection boiler displacement pump and an oilfield gas injection boiler. The thermal deoxygenizing system is characterized in that a superconducting gas and waste heat reclamation plant is arranged at the gas outlet of the oilfield gas injection boiler; the water inlet of the oilfield gas injection boiler is connected with the heat exchanger; the water outlet of the oilfield gas injection boiler is connected with the water inlet of the thermal deoxygenizing device; demineralized water entering into the thermal deoxygenizing device is heated in order to rise the water temperature of the thermal deoxygenizing device. The thermal deoxygenizing system is an improvement of the prior thermal deoxygenizing system; on the one hand, the temperature of drained gas is lowered by the superconducting gas and waste heat reclamation plant, the thermal efficiency of boiler is enhanced, and the energy is saved and the consumption is lowered; on the other hand, the gas consumption quantity of the thermal deoxygenizing device is reduced by rising the water temperature of the deoxygenizing device, and the shortcoming that the boiler steam rate is decreased caused by adopting the thermal deoxygenizing device is made up. The thermal deoxygenizing system has the advantages that the energy is saved and the consumption is lowered, the operation cost of boiler is lowered, the benefit is remarkable, the boiler steam rate is improved, and the investment economical efficiency of the boiler is enhanced.
Description
Technical field
The utility model relates to a kind of thermal de-aeration system, particularly utilizes flue residue heat heating heating power deaerator feedwater, and the water temperature that enters thermal deaerator is reached about 90 ℃, thus a kind of new thermal de-aeration system that the steam consumption of thermal deaerator descends greatly.
Background technology
The boiler exhaust gas heat loss is a principal element that influences boiler thermal output.The residual heat from boiler fume utilization is the problem that boiler industry is being inquired into always.At uphole steam generator, consider in the design that the on-the-spot resettlement in oil field needs especially, make the boiler structure compactness as far as possible, heat loss due to exhaust gas is maximum in a uphole steam generator heat loss; In the actual motion,,, make uphole steam generator operation cigarette temperature often design the cigarette temperature and exceed a lot, form bigger heat loss due to exhaust gas because of the convection section fin tube structure of uphole steam generator is easy to cause the convection section dust stratification to the uphole steam generator of fuel oil.After the huge waste of recognizing the uphole steam generator fume afterheat, adopt conventional heat exchanger to place on the uphole steam generator convection section, though the uphole steam generator exhaust gas temperature has obvious decline, energy-saving effect is remarkable.But because the cold end corrosion problem makes the heat exchanger longest-lived within 2 years.By the analysis and research to various heat exchanger heat transfer mechanisms, the super heat-conductive pipe heat exchanger (patent No.: ZL01254314.6) as the waste-heat recovery device of uphole steam generator has been invented by Shanghai Chengyu Science and Trade Co., Ltd..This type heat exchanger adopts the super heat-conductive pipe heat transfer technology, because its temperature end adheres to different intervals separately with low-temperature end, can ward off out the cold end corrosion district by design, thereby fundamentally solve the problem in service life of heat exchanger, and in a large amount of production practices, obtain good energy-saving effect.Yet existing thermal de-aeration system is that soft water is through heat exchanger, water temperature is promoted to about 60 ℃ for about 20 ℃ from normal temperature, feedwater as thermal deaerator, though saved energy consumption, but thermal deaerator mainly still heats by uphole steam generator, is used to heat the quantity of steam that deaerated feedwater consumes and accounts for about 15% of boiler load.Therefore, adopt thermal deaerator that boiler output will be descended.For oil thermal recovery, the vapor (steam) velocity on injection stratum and notes vapour amount and extraction effect are closely related, and the following general who has surrendered of uphole steam generator load brings investment economy decline.
Summary of the invention
The utility model need solve owing to bring the problem of boiler load decline with thermal deaerator, overcome the shortcoming of existing thermal de-aeration system, provide a kind of flue residue heat that utilizes to improve the thermal deaerator feed temperature through the superconduction flue gas waste heat recovery apparatus, thereby the raising boiler thermal output, energy-saving and cost-reducing new thermal de-aeration system.
The technical solution of the utility model is: a kind of thermal de-aeration system, it comprises: thermal deaerator, heat exchanger, deoxygenation water pump, uphole steam generator plunger displacement pump, uphole steam generator, air blast, be characterized in, be equipped with the superconduction flue gas waste heat recovery apparatus at the uphole steam generator smoke outlet, its water inlet end is connected with heat exchanger, the water side connects the thermal deaerator water inlet end, the demineralized water that enters thermal deaerator is heated the water temperature that enters thermal deaerator with raising, thereby reduced the steam consumption of thermal deaerator, improved boiler output.
The utility model is the improvement to existing thermal de-aeration system, reduces exhaust gas temperature by the superconduction flue gas waste heat recovery apparatus on the one hand, improves boiler thermal output, and is energy-saving and cost-reducing; Improve the water temperature that enters oxygen-eliminating device on the other hand the steam consumption of thermal deaerator is descended, remedied the deficiency that adopts thermal deaerator to bring boiler output to descend.Advantage is energy-saving and cost-reducing, and the boiler operatiopn expense descends, and benefit is obvious; Boiler output increases, and has improved the investment economy of boiler.
Description of drawings
Fig. 1 is a thermal de-aeration system principle schematic diagram.
The specific embodiment
By shown in Figure 1, a kind of thermal de-aeration system, it comprises: heat exchanger 1, thermal deaerator 3, deoxygenation water pump 4, uphole steam generator plunger displacement pump 5, uphole steam generator 6, air blast 7, be characterized in, be equipped with superconduction flue gas waste heat recovery apparatus 2 at uphole steam generator 6 smoke outlets, the water inlet end of described superconduction flue gas waste heat recovery apparatus 2 is connected with heat exchanger 1, the water side of superconduction flue gas waste heat recovery apparatus 2 connects the water inlet end of thermal deaerator 3, the water temperature that enters the demineralized water of thermal deaerator 3 is promoted to about 60 ℃ for about 20 ℃ from normal temperature, the water temperature that enters superconduction flue gas waste heat recovery apparatus 2 then is promoted to about about 90 ℃ again, enters thermal deaerator (3) at last and carries out thermal de-aeration.Qualified deaerated water after the deoxygenation at first enters heat exchanger 1 and is cooled to about 60 ℃, pumps into uphole steam generator feedwater plunger displacement pump 5 through deoxygenation water pump 4 and enters uphole steam generator 6.
The purpose that is provided with of heat exchanger 1 is that 104 ℃ deaerated water must be introduced into the heat exchanger cooling then just can enter uphole steam generator feedwater plunger displacement pump 5 because uphole steam generator feedwater plunger displacement pump 5 water inlet water temperatures must not surpass 70 ℃ on the one hand; Deaerated water after the cooling is difficult for causing the cavitation of deoxygenation water pump 4 on the other hand, has improved the operating condition of deoxygenation water pump 4.
Claims (1)
1. thermal de-aeration system, it comprises: heat exchanger (1), thermal deaerator (3), deoxygenation water pump (4), uphole steam generator plunger displacement pump (5), uphole steam generator (6), it is characterized in that, be equipped with superconduction flue gas waste heat recovery apparatus (2) at uphole steam generator (6) smoke outlet, the water inlet end of described superconduction flue gas waste heat recovery apparatus (2) is connected with heat exchanger (1), the water side of superconduction flue gas waste heat recovery apparatus (2) connects the water inlet end of thermal deaerator (3), and the demineralized water that enters thermal deaerator is heated the water temperature that enters thermal deaerator with raising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720074156XU CN201121883Y (en) | 2007-08-28 | 2007-08-28 | System for deoxidizing by heat power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720074156XU CN201121883Y (en) | 2007-08-28 | 2007-08-28 | System for deoxidizing by heat power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121883Y true CN201121883Y (en) | 2008-09-24 |
Family
ID=40009111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720074156XU Expired - Fee Related CN201121883Y (en) | 2007-08-28 | 2007-08-28 | System for deoxidizing by heat power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121883Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047640A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Boiler with heat exchanging device |
| CN105043730A (en) * | 2015-06-26 | 2015-11-11 | 中国核动力研究设计院 | Deoxidizing structure suitable for thermal hydraulic closed test loop and dynamic deoxidizing method |
| CN105090930A (en) * | 2015-08-20 | 2015-11-25 | 四川德胜集团钒钛有限公司 | Boiler water supply mechanism |
-
2007
- 2007-08-28 CN CNU200720074156XU patent/CN201121883Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047640A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Boiler with heat exchanging device |
| CN105043730A (en) * | 2015-06-26 | 2015-11-11 | 中国核动力研究设计院 | Deoxidizing structure suitable for thermal hydraulic closed test loop and dynamic deoxidizing method |
| CN105090930A (en) * | 2015-08-20 | 2015-11-25 | 四川德胜集团钒钛有限公司 | Boiler water supply mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20090928 |