CN103485962A - Drainage complementary energy utilization system of once-through cooling unit - Google Patents
Drainage complementary energy utilization system of once-through cooling unit Download PDFInfo
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- CN103485962A CN103485962A CN201310409304.9A CN201310409304A CN103485962A CN 103485962 A CN103485962 A CN 103485962A CN 201310409304 A CN201310409304 A CN 201310409304A CN 103485962 A CN103485962 A CN 103485962A
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Abstract
The invention discloses a drainage complementary energy utilization system of a once-through cooling unit. The drainage complementary energy utilization system comprises a once-through cooling condenser, a circulating water pump and a water turbine. A water intake is connected with a water inlet pipeline of the once-through cooling condenser. The circulating water pump is arranged on a pipeline connecting the water intake with a water inlet of the once-through cooling condenser. A water outlet of the once-through cooling condenser is connected with a water inlet of a drain pipe. A water outlet of the drain pipe is connected with a water inlet of the water turbine. A water outlet of the water turbine is connected with a water discharge port. The drainage complementary energy utilization system has the advantages that arrangement difficulty of an energy dissipator at the water discharge port is lowered, and initial investment for this portion is saved; generated energy from drainage complementary energy is used by a power plant, so that station service power consumption rate can be reduced, and benefits of power generation enterprises are increased; station service power consumption is reduced, so that economic benefit of the power plant is improved; fuel consumption is reduced, and pollutant emission is reduced correspondingly, so that improvement of social and environmental benefits is facilitated.
Description
Technical field
The present invention relates to a kind of draining surplus energy utility system, particularly relate to a kind of direct cooling unit draining surplus energy utility system.
Background technique
Once-through cooling system also claims direct-flow water supply system, refer to that cooling water directly obtains from water source, flow through cooling equipment or heat exchanger after the disposable thermal exchange, be discharged to the intake downstream, no longer reusable a kind of cooling way of supplying water, this type of cooling water usage is large, when the water source water yield is sufficient, adopts, and is applied to seashore or rivers limit generator set more.Once-through cooling system mainly is comprised of intake, filter plant, circulating water pump and auxiliary system thereof.
Hydroelectric power is to utilize rivers and creeks, lake etc. to be positioned at the current that eminence has potential energy to flow to lower, wherein contained potential energy is converted to the kinetic energy of water turbine, and kinetic energy drives water turbine and rotates thus, drives generator amature as prime mover and rotates generating.Water turbine can be divided into impulse turbine and the large class of reaction turbine two by working method, and reaction turbine can be divided into again mixed-flow, axial flow, diagonal flow type and tubular, and application is Francis turbine more widely at present.
The direct cooling Construction of Unit is on rivers limit or seashore, consider that plant area is not subject to the impact of morning and evening tides and domatic flood, take into account the factor of the aspects such as the processing of factory building deep foundation and water intaking Economy simultaneously, factory building zero rice is mostly on normal sea level or rivers 10 meters left and right above water, after arranging like this, once-through cooling water enters drainage by siphon after the vapour condenser of flowing through, draining still has certain potential energy, but most of power plant does not all adopt rational surplus energy utility measure, for fear of draining to damaging property of drain opening part, all be provided with the water drainage energy dissipation device, increased initial cost when having wasted complementary energy.
Summary of the invention
The object of the present invention is to provide a kind of direct cooling unit draining surplus energy utility system.
Purpose of the present invention is implemented by following technological scheme, a kind of direct cooling unit draining surplus energy utility system, it comprises direct cooling vapour condenser, circulating water pump and water turbine, intake is connected with the water intake pipeline of described direct cooling vapour condenser, the pipeline that connects the water intake of described intake and described direct cooling vapour condenser is provided with described circulating water pump, the water outlet of described direct cooling vapour condenser is connected with the water intake of waste pipe, the water outlet of described waste pipe is connected with the water intake of described water turbine, and the water outlet of described water turbine is connected with drain opening.
Described water turbine is impulse turbine or reaction turbine.
Described reaction turbine is any one in Francis turbine, axial flow hydraulic turbine, inclined flow turbine or tubular turbine.
The once-through cooling water of the large flow of direct cooling unit is fetched water by intake, through circulating water pump, boost, deliver to the direct cooling vapour condenser, the cooling water drainage that carries heat after heat exchange goes out factory building, near the waste pipe drain opening, water turbine is set, the energy that the large flow drainage of water turbine utilization is entrained, drive the generator generating, and the draining after surplus energy utility is discharged through drain opening.
Direct cooling unit draining potential energy is mostly in 10 meter water column left and right, and the available potential energy of draining section is 8 meters left and right, for two 660MW units, in the draining section, the water turbine generating is set, hour generated energy can reach 3.3MW, and station service power consumption rate can reduce by 0.5%, and coal consumption of power supply can reduce 0.55g/kwh; According to annual utilization hours 5500h, calculate, amount of electricity saving is 1.815 * 10
7kWh, save 3,630,000 yuan of station service costs, and economic benefit is considerable.
The invention has the advantages that, near (1) drainage pipe drain opening, water turbine is set, draining complementary energy drives the water turbine generating, can utilize most draining complementary energy, reduces the difficulty that arranges of drain opening place energy dissipator simultaneously, saves this part initial cost; (2) utilize the generating of draining energy, draining power generating by remain energy amount power plant is personal, can reduce station service power consumption rate, and for electricity power enterprise increases benefit, simultaneously, station service power consumption rate reduces, and the economy of power plant benefit improves; (3) fuel consumption reduces, and the corresponding minimizing of pollutant emission is conducive to improve society, environmental benefit; (4) the present invention has overcome the shortcoming that conventional direct cooling unit draining energy wastes, and has improved economic benefit and social, the environmental benefit of electricity power enterprise.
The accompanying drawing explanation
Fig. 1 is a kind of direct cooling unit draining surplus energy utility system schematic.
Direct cooling vapour condenser 1, circulating water pump 2, Francis turbine 3, intake 4, waste pipe 5, drain opening 6.
Embodiment: a kind of direct cooling unit draining surplus energy utility system, it comprises direct cooling vapour condenser 1, circulating water pump 2 and Francis turbine 3, intake 4 is connected with the water intake pipeline of direct cooling vapour condenser 1, connect intake 4 and be provided with circulating water pump 2 with the pipeline of the water intake of direct cooling vapour condenser 1, the water outlet of direct cooling vapour condenser 1 is connected with the water intake of waste pipe 5, the water outlet of waste pipe 5 is connected with the water intake of Francis turbine 3, and the water outlet of Francis turbine 3 is connected with drain opening 6.
As shown in Figure 1, the once-through cooling water of the large flow of direct cooling unit is by intake 4 water intakings, through circulating water pump 2, boost, deliver to direct cooling vapour condenser 1, the cooling water drainage that carries heat after heat exchange goes out factory building, near waste pipe 5 drain opening, Francis turbine 3 is set, and Francis turbine 3 utilizes the entrained energy of large flow drainage, the generating of drive generator, the draining after surplus energy utility is through drain opening 6 discharges.
Claims (3)
1. a direct cooling unit draining surplus energy utility system, it is characterized in that, it comprises direct cooling vapour condenser, circulating water pump and water turbine, intake is connected with the water intake pipeline of described direct cooling vapour condenser, the pipeline that connects the water intake of described intake and described direct cooling vapour condenser is provided with described circulating water pump, the water outlet of described direct cooling vapour condenser is connected with the water intake of waste pipe, the water outlet of described waste pipe is connected with the water intake of described water turbine, and the water outlet of described water turbine is connected with drain opening.
2. a kind of direct cooling unit draining surplus energy utility system according to claim 1, is characterized in that, described water turbine is impulse turbine or reaction turbine.
3. a kind of direct cooling unit draining surplus energy utility system according to claim 2, is characterized in that, described reaction turbine is any one in Francis turbine, axial flow hydraulic turbine, inclined flow turbine or tubular turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310409304.9A CN103485962A (en) | 2013-09-10 | 2013-09-10 | Drainage complementary energy utilization system of once-through cooling unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310409304.9A CN103485962A (en) | 2013-09-10 | 2013-09-10 | Drainage complementary energy utilization system of once-through cooling unit |
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| CN103485962A true CN103485962A (en) | 2014-01-01 |
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| CN201310409304.9A Pending CN103485962A (en) | 2013-09-10 | 2013-09-10 | Drainage complementary energy utilization system of once-through cooling unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514025A (en) * | 2018-11-21 | 2019-11-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Once-through cooling water system, power plant system and direct cooling method |
| CN110539870A (en) * | 2019-09-25 | 2019-12-06 | 中国船舶重工集团公司第七一九研究所 | Self-flowing cooling system and ship |
| CN114108745A (en) * | 2021-11-30 | 2022-03-01 | 中国能源建设集团广东省电力设计研究院有限公司 | Forced ventilation cooling direct current water taking and draining system |
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| JP2007154861A (en) * | 2005-11-30 | 2007-06-21 | Ayanori Yamamoto | Condenser cooling seawater recycling power generation |
| KR20090016613A (en) * | 2009-01-20 | 2009-02-16 | 전주한 | In an ocean thermal energy conversion system, a method and an apparatus of collecting deep and surface sea water into the heat exchange chamber by the force of gravity without using pump |
| CN201934152U (en) * | 2010-12-29 | 2011-08-17 | 中国电力工程顾问集团公司 | Indirect air cooling system for supercritical unit or ultra-supercritical unit |
| US20110262267A1 (en) * | 2011-06-23 | 2011-10-27 | Walters James M | Energy Efficient Air Conditioning System |
| CN102536603A (en) * | 2012-02-20 | 2012-07-04 | 上海电力学院 | Hydroelectric power generating system realizing matching utilization of double-tail cooling water of thermal power plants |
| CN203515932U (en) * | 2013-09-10 | 2014-04-02 | 内蒙古电力勘测设计院 | Once-through cooling unit drained water complementary energy utilizing system |
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2013
- 2013-09-10 CN CN201310409304.9A patent/CN103485962A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154861A (en) * | 2005-11-30 | 2007-06-21 | Ayanori Yamamoto | Condenser cooling seawater recycling power generation |
| KR20090016613A (en) * | 2009-01-20 | 2009-02-16 | 전주한 | In an ocean thermal energy conversion system, a method and an apparatus of collecting deep and surface sea water into the heat exchange chamber by the force of gravity without using pump |
| CN201934152U (en) * | 2010-12-29 | 2011-08-17 | 中国电力工程顾问集团公司 | Indirect air cooling system for supercritical unit or ultra-supercritical unit |
| US20110262267A1 (en) * | 2011-06-23 | 2011-10-27 | Walters James M | Energy Efficient Air Conditioning System |
| CN102536603A (en) * | 2012-02-20 | 2012-07-04 | 上海电力学院 | Hydroelectric power generating system realizing matching utilization of double-tail cooling water of thermal power plants |
| CN203515932U (en) * | 2013-09-10 | 2014-04-02 | 内蒙古电力勘测设计院 | Once-through cooling unit drained water complementary energy utilizing system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514025A (en) * | 2018-11-21 | 2019-11-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Once-through cooling water system, power plant system and direct cooling method |
| CN110539870A (en) * | 2019-09-25 | 2019-12-06 | 中国船舶重工集团公司第七一九研究所 | Self-flowing cooling system and ship |
| CN114108745A (en) * | 2021-11-30 | 2022-03-01 | 中国能源建设集团广东省电力设计研究院有限公司 | Forced ventilation cooling direct current water taking and draining system |
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Address after: 010010 Hohhot, the Inner Mongolia Autonomous Region Tin Road, No. 209 Applicant after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010010 Hohhot, the Inner Mongolia Autonomous Region Tin Road, No. 209 Applicant before: Inner Mongolia Electric Power Survey Design Institute |
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Free format text: CORRECT: APPLICANT; FROM: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE TO: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTITUTE CO., LTD. |
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Application publication date: 20140101 |