CN200979379Y - A de-oxygenation condenser - Google Patents
A de-oxygenation condenser Download PDFInfo
- Publication number
- CN200979379Y CN200979379Y CN 200620022175 CN200620022175U CN200979379Y CN 200979379 Y CN200979379 Y CN 200979379Y CN 200620022175 CN200620022175 CN 200620022175 CN 200620022175 U CN200620022175 U CN 200620022175U CN 200979379 Y CN200979379 Y CN 200979379Y
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- condenser
- main body
- fixed
- condenser main
- steam
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Abstract
The utility model relates to a deoxygenization condenser relating to fuel-steam combined cycle steam electric generating set condenser, the low 7ppb oxygen content problem of the conventional condenser can be resolved, the utility model comprises four condensers rest pier (3-1) which are respectively disposed on the round of the condenser main part (1-1), a condenser dead center seat is disposed on the bottom center of the condenser main part (1-1), a condensed water collector (3-3) is disposed on one side of the condenser main part (1-1), a steam pipe (4-1) is disposed on the bottom of the condenser main part (1-1), the steam pipe (4-1) is disposed with a well-distributed nozzle, the steam into the steam pipe after passing through the nozzle even contacts the condensed water, the condensed water can be fully heated, thereby the low 7ppb oxygen content can be achieved, the stating, good running, under-load, side road, water replenishing or the like can be satisfied by the device, the oxygen content of the condenser condensed water outlet is low 7ppb.
Description
Technical field
The utility model relates to the condenser of gas-steam combined turbine cycle group.
Background technology
The condenser of large-scale power station is all considered the deoxygenation function when design now.The oxygen content of condenser condensate water outlet when normal operation generally all below 42ppb, adopts the condenser of existing deoxygenation measure, and the oxygen content of condensate water outlet all can reach about 20ppb when normal operation.But all can not satisfying the oxygen content of condenser condensate water under any operating condition, present condenser must reach requirement below the 7ppb.
The utility model content
The purpose of this utility model is not reach the problem of oxygen content less than 7ppb for solving present deaeration in condenser performance, and a kind of oxygen removing type condenser is provided.The utlity model has can satisfy Steam Turbine start, under the operating modes such as normal operation, underload, bypass, moisturizing, condensate water outlet oxygen content is all less than the characteristics of 7ppb in the condenser.
The utility model comprises condenser main body 1-1, expansion joint 1-2, changeover portion 1-3, two condenser front water chamber 2-1, hydroecium 2-2 behind two condensers, four condenser buttress 3-1, condenser dead point seat 3-2, condensate water collector 3-3, jet chimney 4-1 and nozzle 4-2, changeover portion 1-3 is arranged on the upper end of condenser main body 1-1, be fixed with expansion joint 1-2 between changeover portion 1-3 and the condenser main body 1-1, two condenser front water chamber 2-1 are fixed on the side on the condenser main body 1-1, hydroecium 2-2 is fixed on the opposite side on the condenser main body 1-1 behind two condensers, four condenser buttress 3-1 be separately fixed at condenser main body 1-1 bottom around, condenser dead point seat 3-2 is fixed on the center of condenser main body 1-1 bottom, condensate water collector 3-3 is fixed on a side of condenser main body 1-1 bottom, jet chimney 4-1 is fixed on the bottom in the condenser main body 1-1, and jet chimney 4-1 is provided with nozzle 4-2.
Basic principle of the present utility model is: utilize pressure ratio condenser pressure height, steam that temperature is higher than condensate water saturation temperature, spray in the condensate water by nozzle, utilize the strong bubbling effect that is produced, the contact area of steam and condensate water is significantly increased, condensate water 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 utility model enters into jet chimney is gone out the back by nozzle ejection and is carried out even contact with condensate water, and condensate water is heated fully, thereby the oxygen content that guarantees condensate water is less than 7ppb.The utility model can satisfy Steam Turbine fully under operating modes such as startup, normal operation, underload, bypass, moisturizing, and condensate water outlet oxygen content is all less than 7ppb in the condenser.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the vertical 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 cutaway view of Fig. 4.
The specific embodiment
The specific embodiment one: (referring to the present embodiment of Fig. 1～Fig. 5) by condenser main body 1-1, expansion joint 1-2, changeover portion 1-3, two condenser front water chamber 2-1, hydroecium 2-2 behind two condensers, four condenser buttress 3-1, condenser dead point seat 3-2, condensate water collector 3-3, jet chimney 4-1 and nozzle 4-2 form, changeover portion 1-3 is arranged on the upper end of condenser main body 1-1, be fixed with expansion joint 1-2 between changeover portion 1-3 and the condenser main body 1-1, two condenser front water chamber 2-1 are fixed on the side on the condenser main body 1-1, hydroecium 2-2 is fixed on the opposite side on the condenser main body 1-1 behind two condensers, four condenser buttress 3-1 be separately fixed at condenser main body 1-1 bottom around, condenser dead point seat 3-2 is fixed on the center of condenser main body 1-1 bottom, condensate water collector 3-3 is fixed on a side of condenser main body 1-1 bottom, jet chimney 4-1 is fixed on the bottom in the condenser main body 1-1, and jet chimney 4-1 is provided with nozzle 4-2.Be between present embodiment 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 condenser front water chamber 2-1 and the condenser, all adopts bolted mode to be connected with condenser main body 1-1; Condenser main body 1-1 is arranged on the basis by condenser buttress 3-1 rigidity, can condenser dead point seat 3-2 be center free wxpansion during operation; Be provided with expansion joint 1-2 between condenser main body 1-1 and the changeover portion 1-3, can effectively compensate bloated poor between condenser main body 1-1 and the low pressure (LP) cylinder.
The specific embodiment two: (referring to Fig. 4) evenly is furnished with 8,000 to 12,000 cooling water heat exchanger tube 5-1 in condenser main body 1-1, external diameter φ=25mm～φ=31.75mm (deciding as the case may be) of cooling water heat exchanger tube 5-1, wall thickness=0.5mm～0.7mm of cooling water heat exchanger tube 5-1, by rational design arrangement heat-exchanging tube bundle, can reduce the degree of supercooling of condensate water, therefore reduce the oxygen content of condensate water, can also create the condition of good condensate water deep deoxygenization simultaneously.
Above-mentioned embodiment 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 uniform horizontally disposed certain jet chimney, every jet chimney 4-1 goes up and arranges many group nozzle 4-2, and every group of nozzle 4-2 is symmetric arrangement.
Claims (5)
1, a kind of oxygen removing type condenser, comprise condenser main body (1-1), expansion joint (1-2), changeover portion (1-3), two condenser front water chambers (2-1), hydroecium (2-2) behind two condensers, four condenser buttresses (3-1), condenser dead point seat (3-2), condensate water is assembled (3-3), jet chimney (4-1) and nozzle (4-2), changeover portion (1-3) is arranged on the upper end of condenser main body (1-1), be fixed with expansion joint (1-2) between changeover portion (1-3) and the condenser main body (1-1), two condenser front water chambers (2-1) are fixed on the side on the condenser main body (1-1), hydroecium (2-2) is fixed on the opposite side on the condenser main body (1-1) behind two condensers, four condenser buttresses (3-1) be separately fixed at condenser main body (1-1) bottom around, condenser dead point seat (3-2) is fixed on the center of condenser main body (1-1) bottom, condensate water collector (3-3) is fixed on a side of condenser main body (1-1) bottom, it is characterized in that jet chimney (4-1) is fixed on the bottom in the condenser main body (1-1), jet chimney (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 exchanger tubes (5-1) in 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 exchanger tube (5-1), the wall thickness=0.5mm～0.7mm of cooling water heat exchanger tube (5-1).
4, oxygen removing type condenser according to claim 3, it is characterized in that condenser front water chamber (2-1) and 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 jet chimney (4-1), and every group of nozzle (4-2) is symmetric arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022175 CN200979379Y (en) | 2006-12-11 | 2006-12-11 | A de-oxygenation condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022175 CN200979379Y (en) | 2006-12-11 | 2006-12-11 | A de-oxygenation condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200979379Y true CN200979379Y (en) | 2007-11-21 |
Family
ID=38979760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620022175 Expired - Fee Related CN200979379Y (en) | 2006-12-11 | 2006-12-11 | A de-oxygenation condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200979379Y (en) |
-
2006
- 2006-12-11 CN CN 200620022175 patent/CN200979379Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |