CN100408814C - Oxygen removing type condenser - Google Patents
Oxygen removing type condenser Download PDFInfo
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- CN100408814C CN100408814C CNB2006101511230A CN200610151123A CN100408814C CN 100408814 C CN100408814 C CN 100408814C CN B2006101511230 A CNB2006101511230 A CN B2006101511230A CN 200610151123 A CN200610151123 A CN 200610151123A CN 100408814 C CN100408814 C CN 100408814C
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- vapour condenser
- main body
- condenser
- vapour
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Abstract
A deoxidizing condenser for the gas-steam turbine in order to ensure that the content of oxygen is condensed water is less than 7 ppb is composed of a main body, 4 supporting legs, a dead-point unit, a condensed water collector, and steam tube with nozzle. The condensed water is heated by steam for deoxidizing it.
Description
Technical field
The present invention relates to the vapour condenser of gas-steam combined turbine cycle group.
Background technique
The vapour condenser of large-scale power station is all considered the deoxygenation function when design now.The oxygen content of vapour condenser water of condensation outlet when normal operation generally all below 42ppb, adopts the vapour condenser of existing deoxygenation measure, and the oxygen content of water of condensation outlet all can reach about 20ppb when normal operation.But all can not satisfying the oxygen content of vapour condenser water of condensation under any operating conditions, present vapour condenser must reach requirement below the 7ppb.
Summary of the invention
The objective of the invention is not reach the problem of oxygen content, a kind of oxygen removing type condenser is provided less than 7ppb for solving present deaeration in condenser performance.The present invention have can satisfy steam turbine set start, under the operating modes such as normal operation, low-load, bypass, moisturizing, water of condensation outlet oxygen content is all less than the characteristics of 7ppb in the vapour condenser.
The present invention comprises vapour condenser main body 1-1, expansion joint 1-2, changeover portion 1-3, two vapour condenser front water chamber 2-1, hydroecium 2-2 behind two vapour condenser, four vapour condenser buttress 3-1, vapour condenser dead point seat 3-2, water of condensation collector 3-3, steam line 4-1 and nozzle 4-2, changeover portion 1-3 is arranged on the upper end of vapour condenser main body 1-1, be fixed with expansion joint 1-2 between changeover portion 1-3 and the vapour condenser main body 1-1, two vapour condenser front water chamber 2-1 are fixed on the side on the vapour condenser main body 1-1, hydroecium 2-2 is fixed on the opposite side on the vapour condenser main body 1-1 behind two vapour condenser, four vapour condenser buttress 3-1 are separately fixed at four angles of vapour condenser main body 1-1 bottom, vapour condenser dead point seat 3-2 is fixed on the center of vapour condenser main body 1-1 bottom, water of condensation collector 3-3 is fixed on a side of vapour condenser main body 1-1 bottom, steam line 4-1 is fixed on the bottom in the vapour condenser main body 1-1, and steam line 4-1 is provided with nozzle 4-2.
Basic principle of the present invention is: utilize pressure ratio condenser pressure height, steam that temperature is higher than water of condensation saturation temperature, spray in the water of condensation by nozzle, utilize the strong bubbling effect that is produced, the area of contact of steam and water of condensation is significantly increased, water of condensation is heated fully, thereby reach the purpose of deoxygenation.Deaeration in condenser is a lasting process, and according to the actual conditions of Combined Cycle Unit operation, the source of its deoxygenation uperize is: Qi Jishi, and the deoxygenation uperize is from donkey boiler; After the startup, donkey boiler will cut off, and unit enters normal steam circular flow, and at this moment, deoxygenation steam is from medium pressure steam system.
The steam that the present invention enters into steam line is gone out the back by nozzle ejection and is carried out even contact with water of condensation, and water of condensation is heated fully, thereby the oxygen content that guarantees water of condensation is less than 7ppb.The present invention can satisfy steam turbine set fully under operating modes such as startup, normal operation, low-load, bypass, moisturizing, and water of condensation outlet oxygen content is all less than 7ppb in the vapour condenser.
Description of drawings
Fig. 1 is a structural representation of the present invention, and Fig. 2 is the plan view of Fig. 1, and Fig. 3 is the left view of Fig. 1, and Fig. 4 is the structural representation of uperize deaerating plant, and Fig. 5 is the A-A sectional view of Fig. 4.
Embodiment
Embodiment one: (referring to the present embodiment of Fig. 1～Fig. 5) by vapour condenser main body 1-1, expansion joint 1-2, changeover portion 1-3, two vapour condenser front water chamber 2-1, hydroecium 2-2 behind two vapour condenser, four vapour condenser buttress 3-1, vapour condenser dead point seat 3-2, water of condensation collector 3-3, steam line 4-1 and nozzle 4-2 form, changeover portion 1-3 is arranged on the upper end of vapour condenser main body 1-1, be fixed with expansion joint 1-2 between changeover portion 1-3 and the vapour condenser main body 1-1, two vapour condenser front water chamber 2-1 are fixed on the side on the vapour condenser main body 1-1, hydroecium 2-2 is fixed on the opposite side on the vapour condenser main body 1-1 behind two vapour condenser, four vapour condenser buttress 3-1 are separately fixed at four angles of vapour condenser main body 1-1 bottom, vapour condenser dead point seat 3-2 is fixed on the center of vapour condenser main body 1-1 bottom, water of condensation collector 3-3 is fixed on a side of vapour condenser main body 1-1 bottom, steam line 4-1 is fixed on the bottom in the vapour condenser main body 1-1, and steam line 4-1 is provided with nozzle 4-2.Be between present embodiment vapour condenser main body 1-1, expansion joint 1-2, the changeover portion 1-3 and be welded to connect; Its cooling water adopts the form that goes with each other all the time, and hydroecium 2-2 is arc-shaped structure behind vapour condenser front water chamber 2-1 and the vapour condenser, all adopts bolted mode to be connected with vapour condenser main body 1-1; Vapour condenser main body 1-1 is arranged on the basis by vapour condenser buttress 3-1 rigidity, can vapour condenser dead point seat 3-2 be center free expansion during operation; Be provided with expansion joint 1-2 between vapour condenser main body 1-1 and the changeover portion 1-3, can effectively compensate bloated poor between vapour condenser main body 1-1 and the low pressure (LP) cylinder.
Embodiment two: (referring to Fig. 4) evenly is furnished with 8,000 to 12,000 cooling water heat exchanging tube 5-1 in vapour condenser main body 1-1, external diameter φ=25mm～φ=31.75mm (deciding as the case may be) of cooling water heat exchanging tube 5-1, wall thickness=0.5mm～0.7mm of cooling water heat exchanging tube 5-1, by rational design arrangement heat exchanger pipe bundle, can reduce the Subcoold temperature of water of condensation, therefore reduce the oxygen content of water of condensation, can also create the condition of good water of condensation deep deoxygenization simultaneously.
Above-mentioned mode of execution adopts the deoxygenation of nozzle ejection steam bubble, its concrete pattern is: according to steam parameter with after different operating mode situation is calculated, in condenser hotwell based on the certain steam line of uniform horizontal arrangement, every steam line 4-1 goes up and arranges many group nozzle 4-2, and every group of nozzle 4-2 is symmetric arrangement.
Claims (5)
1. oxygen removing type condenser, comprise vapour condenser main body (1-1), expansion joint (1-2), changeover portion (1-3), two vapour condenser front water chambers (2-1), hydroecium (2-2) behind two vapour condenser, four vapour condenser buttresses (3-1), vapour condenser dead point seat (3-2), water of condensation collector (3-3), steam line (4-1) and nozzle (4-2), changeover portion (1-3) is arranged on the upper end of vapour condenser main body (1-1), be fixed with expansion joint (1-2) between changeover portion (1-3) and the vapour condenser main body (1-1), two vapour condenser front water chambers (2-1) are fixed on the side on the vapour condenser main body (1-1), hydroecium (2-2) is fixed on the opposite side on the vapour condenser main body (1-1) behind two vapour condenser, four vapour condenser buttresses (3-1) are separately fixed at four angles of vapour condenser main body (1-1) bottom, vapour condenser dead point seat (3-2) is fixed on the center of vapour condenser main body (1-1) bottom, water of condensation collector (3-3) is fixed on a side of vapour condenser main body (1-1) bottom, it is characterized in that steam line (4-1) is fixed on the bottom in the vapour condenser main body (1-1), steam line (4-1) is provided with nozzle (4-2).
2. oxygen removing type condenser according to claim 1 is characterized in that evenly being furnished with 8,000 to 12,000 cooling water heat exchanging tubes (5-1) in vapour condenser main body (1-1).
3. oxygen removing type condenser according to claim 2 is characterized in that the external diameter φ=25mm～φ=31.75mm of cooling water heat exchanging tube (5-1), the wall thickness=0.5mm～0.7mm of cooling water heat exchanging tube (5-1).
4. oxygen removing type condenser according to claim 3, it is characterized in that vapour condenser front water chamber (2-1) and vapour condenser after hydroecium (2-2) be arc-shaped structure.
5. oxygen removing type condenser according to claim 4 is characterized in that the upward many groups of layout nozzles (4-2) of every steam line (4-1), and every group of nozzle (4-2) is symmetric arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511230A CN100408814C (en) | 2006-12-11 | 2006-12-11 | Oxygen removing type condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511230A CN100408814C (en) | 2006-12-11 | 2006-12-11 | Oxygen removing type condenser |
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| CN1987057A CN1987057A (en) | 2007-06-27 |
| CN100408814C true CN100408814C (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101511230A Active CN100408814C (en) | 2006-12-11 | 2006-12-11 | Oxygen removing type condenser |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435348B (en) * | 2008-12-13 | 2010-12-29 | 东方电气集团东方汽轮机有限公司 | Air cooling steam turbine steam discharge apparatus built-in with deoxidization apparatus |
| CN108844380A (en) * | 2018-07-09 | 2018-11-20 | 北京龙威发电技术有限公司 | A kind of matched bubbling oxygen removing type condenser of steam turbine |
| CN109780881A (en) * | 2019-03-12 | 2019-05-21 | 中国电建集团贵州电力设计研究院有限公司 | One kind recycling Effuser device for condenser condensed water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674109Y (en) * | 2003-07-11 | 2005-01-26 | 东方汽轮机厂 | Apparatus for steam-taking and feeding water into steam condensing device and oxygen removing for steam turbine industry |
| CN1758006A (en) * | 2005-11-11 | 2006-04-12 | 哈尔滨汽轮机厂有限责任公司 | Mono-casing condensor of 600MW steam electric generating set |
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2006
- 2006-12-11 CN CNB2006101511230A patent/CN100408814C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674109Y (en) * | 2003-07-11 | 2005-01-26 | 东方汽轮机厂 | Apparatus for steam-taking and feeding water into steam condensing device and oxygen removing for steam turbine industry |
| CN1758006A (en) * | 2005-11-11 | 2006-04-12 | 哈尔滨汽轮机厂有限责任公司 | Mono-casing condensor of 600MW steam electric generating set |
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| CN1987057A (en) | 2007-06-27 |
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Effective date of registration: 20220816 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HARBIN TURBINE AUXILIARY EQUIPMENT ENGINEERING Co.,Ltd. Address before: 150090 Building No. 3, Harbin Development Zone, Nangang District, Heilongjiang Patentee before: HARBIN TURBINE AUXILIARY EQUIPMENT ENGINEERING Co.,Ltd. |
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