CN104296552A - Novel air cooling condenser with air suction towers and method for condensing exhaust steam of turbine - Google Patents
Novel air cooling condenser with air suction towers and method for condensing exhaust steam of turbine Download PDFInfo
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- CN104296552A CN104296552A CN201410472849.9A CN201410472849A CN104296552A CN 104296552 A CN104296552 A CN 104296552A CN 201410472849 A CN201410472849 A CN 201410472849A CN 104296552 A CN104296552 A CN 104296552A
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Abstract
The invention provides a novel air cooling condenser with air suction towers and a method for condensing the exhaust steam of a turbine. According to the novel air cooling condenser with the air suction towers and the method for condensing the exhaust steam of the turbine, an existing direct air cooling power station condenser and an existing hyperbolic type cooling tower are utilized for cooling the exhaust steam of the turbine of a power station. The novel air cooling condenser comprises the air suction towers, concrete supporting columns and an air cooling condenser platform, wherein the air cooling condenser platform is formed by connecting air cooling units in series, and each air cooling unit comprises a steam distributing pipe, a heat exchanger, an axial flow fan, an air duct and the like. Through the air suction function of the air suction towers which are additionally arranged on the periphery, cooling air enters the air suction towers firstly, a fan group is enhanced, especially the adaptability of the peripheral fans to environmental wind is improved, and the amount of the air entering the air cooling condenser is increased. By the adoption of the novel air cooling condenser with the air suction towers and the method for condensing the exhaust steam of the turbine, the influence of the environmental wind on the operation performance of the air cooling condenser and the operation performance of the air cooling power station is effectively weakened, the operation stability and the economical efficiency of the direct air cooling power station are improved, and the adverse influence, caused when the fan group surges due to the influence of the environmental wind, on the service life of the fans is reduced; in addition, air is used as a working medium for cooling the exhaust steam of the turbine, cooling water is greatly saved, and the novel air cooling condenser with the air suction towers and the method for condensing the exhaust steam of the turbine meet the state energy conservation and emission reduction strategy and the state water resource sustainable development strategy.
Description
Technical field
The present invention relates to a kind of novel air cooling tubes condenser with aspiration leg and turbine discharge condensation method, belong to Air flow and field of dynamic engineering.
Background technology
The rich coal water-deficient area in the north, usually adopts the air cooling tubes condenser of water-saving performance excellence to substitute conventional water-cooled cooling tower, namely adopts air to make turbine discharge condensation as cooling medium, thus make power station complete closed thermodynamic cycle.Because air cooling tubes condenser is directly exposed in surrounding air, the runnability in air cooling tubes condenser and air cooling power station strengthens the sensitiveness of ambient wind, particularly under high temperature and strong wind atmosphere, draught fan group, particularly the import department of peripheral blower fan will form negative pressuren zone, form eddy current at fan inlet, weaken the blasting action of blower fan, cause blower fan generation surge simultaneously, finally affect safety in operation and the economy in air cooling tubes condenser and air cooling power station.And at present to draught fan group, the correlative study that particularly peripheral fan performance promotes does not draw attention, lack effective solution.
Summary of the invention
The object of the invention is to propose a kind of novel air cooling tubes condenser with aspiration leg and turbine discharge condensation method.
A kind of air cooling tubes condenser with aspiration leg, comprise the air cooling tubes condenser platform be formed in parallel by air cooling unit strings, described air cooling unit is by steam-distributing pipe, the heat exchanger be connected with steam-distributing pipe, be positioned at the axial flow blower of heat exchanger bottom, be positioned at the air duct of axial flow blower outside, support the concrete support post composition of air cooling tubes condenser platform; It is characterized in that: air cooling tubes condenser platform periphery is evenly arranged hyperbolic type aspiration leg, down, air outlet upward in hyperbolic type aspiration leg inlet scoop.
The turbine discharge condensation method of the above-mentioned air cooling tubes condenser with aspiration leg, it is characterized in that comprising following process: power station steam turbine steam discharge enters the steam-distributing pipe of air cooling tubes condenser platform, heat exchanger steam side is entered after steam-distributing pipe distributes, first incoming flow cooling-air enters the import of hyperbolic type aspiration leg simultaneously, and discharge from the outlet of hyperbolic type aspiration leg, remain incoming flow cooling-air continues to flow into bottom air cooling tubes condenser platform draught fan group simultaneously, inflow heat exchanger air heat-exchange passage under axial flow blower blasting action, heat exchange is carried out with heat exchanger steam side turbine discharge, discharge through heat exchanger steam side pipeline after steam-condensation Cheng Shui, cooling-air simultaneously after heating flows out through air cooling tubes condenser table top.
Convergent-divergent baffle plate and control system thereof have been installed in the hyperbolic type aspiration leg import of the above-mentioned air cooling tubes condenser with aspiration leg additional.For according to weather, comprise wind speed, the change of wind-warm syndrome and wind direction controls convergent-divergent baffle plate to regulate the incoming air area of hyperbolic type aspiration leg.
Leave 1 ~ 2m gap between the above-mentioned air cooling tubes condenser hyperbolic type aspiration leg with aspiration leg and the peripheral axial flow blower of air cooling tubes condenser platform, prevent the hot-air of air cooling tubes condenser platform from producing backflow.
The height of the above-mentioned air cooling tubes condenser hyperbolic type aspiration leg with aspiration leg is concordant with the top of steam-distributing pipe, prevents hyperbolic type aspiration leg from affecting hot-air and goes out stream.
Heat exchanger in the air cooling tubes condenser platform of the above-mentioned air cooling tubes condenser with aspiration leg adopts fin-tube heat exchanger structure.
Compared with prior art, the present invention at least tool has the following advantages: the present invention installs hyperbolic type aspiration leg in traditional air cooling tubes condenser periphery, hyperbolic type aspiration leg is adopted to carry out current stabilization to the cooling-air entering draught fan group, enhance draught fan group, particularly peripheral blower fan is to the adaptability of environment, effectively improve the intake of peripheral blower fan and overall draught fan group, inhibit the surge of peripheral blower fan under little air quantity simultaneously, improve the service life of draught fan group and air cooling tubes condenser.Present invention achieves the safe and highly efficient operation in air cooling tubes condenser and air cooling power station, improve the overall utilization ratio of the energy, saved great lot of water resources simultaneously, meet the target of national energy-saving reduction of discharging and Sustainable Development Strategy of Water Resources.
Accompanying drawing explanation
Fig. 1 is existing air cooling tubes condenser;
Fig. 2 is the air cooling tubes condenser of the present invention with aspiration leg;
Number in the figure title: 1 air cooling tubes condenser platform, 2 steam-distributing pipes, 3 heat exchangers, 4 axial flow blowers, 5 air ducts, 6 concrete support posts, 7 windbreaks, 8 hyperbolic type aspiration legs.
Detailed description of the invention
Referring to Fig. 1, Fig. 2, the running with the novel air cooling tubes condenser of aspiration leg is described.
Fig. 2 is the novel air cooling tubes condenser with aspiration leg that the present invention proposes.The course of work of this system is as follows: power station steam turbine steam discharge enters steam-distributing pipe, heat exchanger steam side is entered after steam-distributing pipe distributes, first incoming flow cooling-air enters hyperbolic type aspiration leg bottom inlet simultaneously, be subject to the air draught effect of hyperbolic type aspiration leg, cooling-air is discharged from top exit after entering hyperbolic type aspiration leg, incoming flow cooling-air enters bottom draught fan group through the follow-up afterflow of current stabilization effect of aspiration leg, under the blasting action of axial flow blower, cooling-air flows into the fin clearance runner of finned tube exchanger, heat exchange is carried out with heat exchanger steam side turbine discharge, steam-condensation Cheng Shuihou reenters power station thermodynamic cycle, cooling-air simultaneously after heating flows out through air cooling tubes condenser top.
The above is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (6)
1. the air cooling tubes condenser with aspiration leg, comprise the air cooling tubes condenser platform (1) be formed in parallel by air cooling unit strings, described air cooling unit is by steam-distributing pipe (2), the heat exchanger (3) be connected with steam-distributing pipe (2), be positioned at the axial flow blower (4) of heat exchanger (3) bottom, be positioned at the air duct (5) that axial flow blower (4) is outside, support concrete support post (6) composition of air cooling tubes condenser platform (1); It is characterized in that: air cooling tubes condenser platform (1) periphery is evenly arranged hyperbolic type aspiration leg (8), down, air outlet upward in hyperbolic type aspiration leg (8) inlet scoop.
2. the air cooling tubes condenser with aspiration leg according to claim 1, is characterized in that: convergent-divergent baffle plate and control system thereof have been installed in the import of above-mentioned hyperbolic type aspiration leg (1) additional.
3. the air cooling tubes condenser with aspiration leg according to claim 1, is characterized in that: leave 1 ~ 2m gap between above-mentioned hyperbolic type aspiration leg (8) and air cooling tubes condenser platform (1) peripheral axial flow blower (4).
4. the novel air cooling tubes condenser with aspiration leg according to claim 1, is characterized in that: the height of above-mentioned hyperbolic type aspiration leg (8) is concordant with the top of steam-distributing pipe (2).
5. the air cooling tubes condenser with aspiration leg according to claim 1, is characterized in that: the heat exchanger (3) in above-mentioned air cooling tubes condenser platform (1) adopts fin-tube heat exchanger structure.
6. utilize the turbine discharge condensation method of the air cooling tubes condenser with aspiration leg described in claim 1, it is characterized in that comprising following process: power station steam turbine steam discharge enters the steam-distributing pipe (2) of air cooling tubes condenser platform (1), heat exchanger (3) steam side is entered after steam-distributing pipe (2) distributes, first incoming flow cooling-air enters hyperbolic type aspiration leg (8) import simultaneously, and discharge from hyperbolic type aspiration leg (8) outlet, remain incoming flow cooling-air continues to flow into bottom air cooling tubes condenser platform (1) draught fan group simultaneously, inflow heat exchanger (3) air heat-exchange passage under axial flow blower (4) blasting action, heat exchange is carried out with heat exchanger (3) steam side turbine discharge, discharge through heat exchanger (3) steam side pipeline after steam-condensation Cheng Shui, cooling-air simultaneously after heating flows out through air cooling tubes condenser platform (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472849.9A CN104296552B (en) | 2014-09-17 | 2014-09-17 | Novel air cooling tubes condenser and turbine discharge condensation method with aspiration leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472849.9A CN104296552B (en) | 2014-09-17 | 2014-09-17 | Novel air cooling tubes condenser and turbine discharge condensation method with aspiration leg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104296552A true CN104296552A (en) | 2015-01-21 |
| CN104296552B CN104296552B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410472849.9A Active CN104296552B (en) | 2014-09-17 | 2014-09-17 | Novel air cooling tubes condenser and turbine discharge condensation method with aspiration leg |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939906A (en) * | 1973-12-28 | 1976-02-24 | The Lummus Company | Air cooled exchanger |
| DE3421200A1 (en) * | 1983-07-12 | 1985-01-24 | Balcke-Dürr AG, 4030 Ratingen | Fan-cooled condensing unit |
| WO2006125419A1 (en) * | 2005-05-23 | 2006-11-30 | Gea Energietechnik Gmbh | Condensing system |
| CN100580361C (en) * | 2005-05-23 | 2010-01-13 | Gea能量技术有限公司 | Condensing device |
| CN202648461U (en) * | 2012-06-11 | 2013-01-02 | 双良节能系统股份有限公司 | Direct air cooling condenser provided with sun-shading louver |
| CN103217025A (en) * | 2013-05-06 | 2013-07-24 | 华北电力大学 | Air-cooling condenser structure containing horizontal shaft axial flow fan group |
-
2014
- 2014-09-17 CN CN201410472849.9A patent/CN104296552B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939906A (en) * | 1973-12-28 | 1976-02-24 | The Lummus Company | Air cooled exchanger |
| DE3421200A1 (en) * | 1983-07-12 | 1985-01-24 | Balcke-Dürr AG, 4030 Ratingen | Fan-cooled condensing unit |
| WO2006125419A1 (en) * | 2005-05-23 | 2006-11-30 | Gea Energietechnik Gmbh | Condensing system |
| CN100580361C (en) * | 2005-05-23 | 2010-01-13 | Gea能量技术有限公司 | Condensing device |
| CN202648461U (en) * | 2012-06-11 | 2013-01-02 | 双良节能系统股份有限公司 | Direct air cooling condenser provided with sun-shading louver |
| CN103217025A (en) * | 2013-05-06 | 2013-07-24 | 华北电力大学 | Air-cooling condenser structure containing horizontal shaft axial flow fan group |
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| Publication number | Publication date |
|---|---|
| CN104296552B (en) | 2016-08-24 |
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