CN103696819A - High pressure and low pressure two-stage industrial steam extraction heat supply device for steam turbine - Google Patents
High pressure and low pressure two-stage industrial steam extraction heat supply device for steam turbine Download PDFInfo
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Abstract
The invention discloses a high pressure and low pressure two-stage industrial steam extraction heat supply device for a steam turbine. The high pressure and low pressure two-stage industrial steam extraction heat supply device for the steam turbine comprises a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder, wherein a high-pressure bypass system is arranged between the steam inlet pipe and the steam outlet pipe of the high-pressure cylinder; the steam inlet pipeline of the medium-pressure cylinder is provided with a low-pressure bypass system; a steam pipeline in front of the high-pressure bypass system is connected with a high-pressure steam extraction pipeline; a steam pipeline in front of the low-pressure bypass system is connected with a low-pressure steam extraction pipeline. A pure condensing steam turbine generator unit is modified into a heat supply unit to realize a function that the unit simultaneously generates power and supplies heat. The maximum steam extraction amount of the high-pressure steam of the unit is 100t/h, the maximum steam extraction amount of the low-pressure steam of the unit is 130t/h, and the maximum steam extraction amount sum is 230t/h. High-pressure and low-pressure extracted steam passes through a heat supply network via temperature and pressure reduction to be conveyed to a heat consumer, and the requirement of the heat consumer on high-pressure and low-pressure two-stage steam can be satisfied.
Description
Technical field
The present invention relates to condensing steam turbine generator set technical field, especially a kind of 220MW condensing steam turbine generator set is realized high low pressure two-stage extraction steam for factories heating arrangement.
Background technique
Owing to there is the cold source energy of steam discharge in condensing steam turbine generator set, efficiency of energy utilization is lower.The efficiency of energy utilization of the 1000MW condensing steam turbine generator set that the highest grade at present, also only reach 45% left and right, the 200MW(of the same type of Er Liu electricity company is containing the 220MW through the transformation of increase-volume consumption reduction) efficiency of energy utilization of level condensing steam turbine generator group is only 35% left and right.Because 200MW level condensing steam turbine generator set efficiency of energy utilization is low, energy waste is large; Therefore,, since 2005, domestic 200MW level condensing steam turbine generator set carries out heat supply process transformation successively, and straight condensing turbine generator set is transformed into heat, electric dual-purpose unit.Its structure as shown in Figure 1, the superheated vapor of coming from boiler superheater enters steam turbine high-pressure cylinder 1 by two main steam lines 11, high-pressure cylinder steam discharge after acting drains into boiler reheater by two steam lines 12, steam after reheater heating enters Steam Turbine Through IP Admission 2 actings through two steam lines 21, / 3rd of a steam total amount after intermediate pressure cylinder 2 actings enters and intermediate pressure cylinder low-pressure section (low pressure (LP) cylinder 3), the steam that accounts in addition total amount 2/3rds drains into low pressure (LP) cylinder 4 and 5 by connecting tube 22, continues acting.High, medium and low cylinder pressure and generator coaxle, the expansion by steam in cylinder is done work, the rotation of pushing turbine macro-axis, thus drive generator generating.In order to facilitate unit starting and accident treatment, hp by-pass system (being equivalent to short circuit high-pressure cylinder) is set between high-pressure cylinder steam inlet pipe and exhaust steam pipe, by high pressure turbine by valve 13, carry out hp by-pass system and control, regulate high pressure turbine by steam flow; At intermediate pressure cylinder admission install pipeline low-pressure bypass system (being equivalent to short circuit intermediate pressure cylinder, low pressure (LP) cylinder), by low voltage bypass valve 23, control, regulate low voltage bypass flow.During normal operation, high pressure turbine by valve 13 is all closed with low pressure bypass valve arrangement 23, only at unit starting, stop or accident in the situation that, in order to guarantee the safety of unit, open respectively high pressure bypass valve 13 and low voltage bypass valve 23 and pass through to regulate aperture to control the steam flow of high pressure turbine by and low voltage bypass.
The heat supply renovation technique that 200MW level condensing steam turbine generator group adopts at present, mainly to draw gas to punching on the connecting tube between low pressure (LP) cylinder by the intermediate pressure cylinder steam discharge at steam turbine, the steam of extracting out is for urban heating heat supply, 245 ℃ of extraction pressure 0.25MPa, temperature, peak rate of flow 200t/h.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of steam turbine high low pressure two-stage extraction steam for factories heating arrangement, power generation and heat supply carries out simultaneously, and heating load is large.
In order to realize foregoing invention object, the invention provides following technological scheme: a kind of steam turbine high low pressure two-stage extraction steam for factories heating arrangement, comprise high-pressure cylinder, intermediate pressure cylinder and low pressure (LP) cylinder, between the steam inlet pipe of high-pressure cylinder and exhaust steam pipe, be provided with hp by-pass system, at intermediate pressure cylinder admission install pipeline low-pressure bypass system, the steam line before hp by-pass system is connected with high pressure extraction pipeline; Steam line before low-pressure bypass system is connected with low-pressure pumping steam pipeline.
Further, described high pressure extraction pipeline is provided with high pressure extraction power door operation and high pressure steam converter valve.
Further, described low-pressure pumping steam pipeline is provided with low-pressure pumping steam power door operation and low pressure steam converter valve.
Further, described hp by-pass system is high pressure bypass valve.
Further, described low-pressure bypass system is low voltage bypass valve.
Compared with prior art, the present invention has the following advantages: transform pure condensate Turbo-generator Set as heat supply unit, realize that unit generates electricity, heat supply function simultaneously.The maximum amount of drawing gas of unit high pressure steam is that the maximum amount of drawing gas of 100t/h, low pressure steam is 130t/h, and adding up to the maximum amount of drawing gas is 230t/h.High and low pressure draws gas and after pressure and temperature reducing, passes through heat supply network, is delivered to hot user, can meet the demand of hot user's high and low pressure two-stage steam.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of steam turbine high low pressure two-stage extraction steam for factories heating arrangement as shown in Figure 2, the superheated vapor of coming from boiler superheater enters steam turbine high-pressure cylinder 1 by two main steam lines 11, high-pressure cylinder steam discharge after acting drains into boiler reheater by two steam lines 12, steam after reheater heating enters Steam Turbine Through IP Admission 2 actings through two steam lines 21, / 3rd of a steam total amount after intermediate pressure cylinder 2 actings enters and intermediate pressure cylinder low-pressure section (low pressure (LP) cylinder 3), the steam that accounts in addition total amount 2/3rds drains into low pressure (LP) cylinder 4 and 5 by connecting tube 22, continue acting.High, medium and low cylinder pressure and generator coaxle, the expansion by steam in cylinder is done work, the rotation of pushing turbine macro-axis, thus drive generator generating.In order to facilitate unit starting and accident treatment, hp by-pass system (being equivalent to short circuit high-pressure cylinder) is set between high-pressure cylinder steam inlet pipe and exhaust steam pipe, by high pressure turbine by valve 13, carry out hp by-pass system and control, regulate high pressure turbine by steam flow; At intermediate pressure cylinder admission install pipeline low-pressure bypass system (being equivalent to short circuit intermediate pressure cylinder, low pressure (LP) cylinder), by low voltage bypass valve 23, control, regulate low voltage bypass flow.During normal operation, high pressure turbine by valve 13 is all closed with low pressure bypass valve arrangement 23, only at unit starting, stop or accident in the situation that, in order to guarantee the safety of unit, open respectively high pressure bypass valve 13 and low voltage bypass valve 23 and pass through to regulate aperture to control the steam flow of high pressure turbine by and low voltage bypass.
Steam line before high pressure bypass valve 13 picks out high pressure extraction pipeline 14, rear for supplying industrial heat user, vapor pressure 10MPa, 500 ℃ of temperature, peak rate of flow 100t/h after pressure and temperature reducing to heat supply network by high pressure extraction power door operation 15 and high pressure steam converter valve 16; Steam line before low voltage bypass valve 23 picks out low-pressure pumping steam pipeline 24, rear for to heat supply network heat supply user by low-pressure pumping steam power door operation 25 and low pressure steam converter valve 26, vapor pressure 1.3MPa, 320 ℃ of temperature, peak rate of flow 130t/h after pressure and temperature reducing.
This heat supply process modification scheme is different from the heat supply process modification scheme that current domestic 200MW level condensing steam turbine generator set adopts, what adopt is to punch and draw gas on steam line before turbine high-pressure by-pass valve and the steam line before low voltage bypass valve, draw gas and after temperature-decreased pressure reducer, supply the industrial heat user to heating network, realized high pressure and low pressure two-stage extraction steam for factories.
By above technical innovation, transform pure condensate Turbo-generator Set as heat supply unit, realize that unit generates electricity simultaneously, heat supply function.The maximum amount of drawing gas of unit high pressure steam is that the maximum amount of drawing gas of 100t/h, low pressure steam is 130t/h, and adding up to the maximum amount of drawing gas is 230t/h.High and low pressure draws gas and after pressure and temperature reducing, passes through heat supply network, be delivered to hot user, can meet the demand of hot user's high and low pressure two-stage steam, compare existing renovation technique and only can supply heating, this technology can meet the diversity of industrial heat user to different pressures grade, temperature requirements such as chemical plant, brewery, the arcola, the small turbine generator set that substitute industrial heat user, reach energy-saving and cost-reducing object.
Claims (5)
1. a steam turbine high low pressure two-stage extraction steam for factories heating arrangement, comprise high-pressure cylinder, intermediate pressure cylinder and low pressure (LP) cylinder, between the steam inlet pipe of high-pressure cylinder and exhaust steam pipe, be provided with hp by-pass system, at intermediate pressure cylinder admission install pipeline low-pressure bypass system, it is characterized in that: the steam line before hp by-pass system is connected with high pressure extraction pipeline; Steam line before low-pressure bypass system is connected with low-pressure pumping steam pipeline.
2. steam turbine high low pressure two-stage extraction steam for factories heating arrangement as claimed in claim 1, is characterized in that: described high pressure extraction pipeline is provided with high pressure extraction power door operation and high pressure steam converter valve.
3. steam turbine high low pressure two-stage extraction steam for factories heating arrangement as claimed in claim 1 or 2, is characterized in that: described low-pressure pumping steam pipeline is provided with low-pressure pumping steam power door operation and low pressure steam converter valve.
4. steam turbine high low pressure two-stage extraction steam for factories heating arrangement as claimed in claim 1, is characterized in that: described hp by-pass system is high pressure bypass valve.
5. steam turbine high low pressure two-stage extraction steam for factories heating arrangement as claimed in claim 1, is characterized in that: described low-pressure bypass system is low voltage bypass valve.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594963A (en) * | 2014-12-05 | 2015-05-06 | 东方电气集团东方汽轮机有限公司 | High-pressure industrial heat supply method for thermal power plant |
| CN105066214A (en) * | 2015-07-31 | 2015-11-18 | 中能世华(北京)节能科技有限公司 | Steam heating energy saving system |
| CN106194295A (en) * | 2016-08-31 | 2016-12-07 | 上海量朝能源科技有限公司 | The coalignment of a kind of fired power generating unit heating parameter and method |
| CN106523049A (en) * | 2015-09-11 | 2017-03-22 | 上海上电漕泾发电有限公司 | Turbine steam extraction and heat supply system |
| CN107060917A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using unit bypass heat supply |
| CN107060916A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using regenerative apparatus heat supply |
| CN107420139A (en) * | 2017-07-26 | 2017-12-01 | 华电电力科学研究院 | A kind of low pressure (LP) cylinder cooling steam device and operation method |
| CN108730765A (en) * | 2017-04-25 | 2018-11-02 | 中国石化工程建设有限公司 | A kind of steam system energy-saving device and method |
| CN110030608A (en) * | 2018-11-22 | 2019-07-19 | 国电电力发展股份有限公司大连开发区热电厂 | Thermoelectricity based on height bypass combined heat mode decouples system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205169A (en) * | 2006-01-31 | 2007-08-16 | Hitachi Ltd | Energy supply system and energy supply method |
| CN102434222A (en) * | 2011-11-28 | 2012-05-02 | 北京北重汽轮电机有限责任公司 | Cogeneration turbine for heating and supplying heat |
| CN102797523A (en) * | 2012-08-16 | 2012-11-28 | 中国核电工程有限公司 | Bleeder steam and exhaust steam comprehensive utilization method for nuclear turbine |
| CN102996191A (en) * | 2012-12-26 | 2013-03-27 | 北京国电蓝天节能科技开发有限公司 | Double-extraction adjustable heating system of thermal power generating unit |
| CN203584485U (en) * | 2013-12-07 | 2014-05-07 | 广西柳州发电有限责任公司 | High-pressure and low-pressure two-stage industrial steam extracting and heat supplying device for steam turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1193275A1 (en) * | 1984-05-18 | 1985-11-23 | Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина | Method of operating a heat-supply steam turbine plant |
-
2013
- 2013-12-07 CN CN201310667813.1A patent/CN103696819B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205169A (en) * | 2006-01-31 | 2007-08-16 | Hitachi Ltd | Energy supply system and energy supply method |
| CN102434222A (en) * | 2011-11-28 | 2012-05-02 | 北京北重汽轮电机有限责任公司 | Cogeneration turbine for heating and supplying heat |
| CN102797523A (en) * | 2012-08-16 | 2012-11-28 | 中国核电工程有限公司 | Bleeder steam and exhaust steam comprehensive utilization method for nuclear turbine |
| CN102996191A (en) * | 2012-12-26 | 2013-03-27 | 北京国电蓝天节能科技开发有限公司 | Double-extraction adjustable heating system of thermal power generating unit |
| CN203584485U (en) * | 2013-12-07 | 2014-05-07 | 广西柳州发电有限责任公司 | High-pressure and low-pressure two-stage industrial steam extracting and heat supplying device for steam turbine |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594963A (en) * | 2014-12-05 | 2015-05-06 | 东方电气集团东方汽轮机有限公司 | High-pressure industrial heat supply method for thermal power plant |
| CN104594963B (en) * | 2014-12-05 | 2016-09-14 | 东方电气集团东方汽轮机有限公司 | Steam power plant's high pressure industrial heat supply method |
| CN105066214A (en) * | 2015-07-31 | 2015-11-18 | 中能世华(北京)节能科技有限公司 | Steam heating energy saving system |
| CN106523049A (en) * | 2015-09-11 | 2017-03-22 | 上海上电漕泾发电有限公司 | Turbine steam extraction and heat supply system |
| CN106523049B (en) * | 2015-09-11 | 2018-03-16 | 上海上电漕泾发电有限公司 | A kind of extracted steam from turbine heating system |
| CN106194295A (en) * | 2016-08-31 | 2016-12-07 | 上海量朝能源科技有限公司 | The coalignment of a kind of fired power generating unit heating parameter and method |
| CN107060916A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using regenerative apparatus heat supply |
| CN107060917A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using unit bypass heat supply |
| CN108730765A (en) * | 2017-04-25 | 2018-11-02 | 中国石化工程建设有限公司 | A kind of steam system energy-saving device and method |
| CN108730765B (en) * | 2017-04-25 | 2020-04-07 | 中国石化工程建设有限公司 | Steam system energy-saving device and method |
| CN107420139A (en) * | 2017-07-26 | 2017-12-01 | 华电电力科学研究院 | A kind of low pressure (LP) cylinder cooling steam device and operation method |
| CN107420139B (en) * | 2017-07-26 | 2023-09-01 | 华电电力科学研究院有限公司 | Low-pressure cylinder cooling steam device and operation method |
| CN110030608A (en) * | 2018-11-22 | 2019-07-19 | 国电电力发展股份有限公司大连开发区热电厂 | Thermoelectricity based on height bypass combined heat mode decouples system and method |
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| CN103696819B (en) | 2015-10-28 |
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Inventor after: Tang Junsheng Inventor after: Mai Yongjun Inventor after: Wu Qiang Inventor after: Wang Qiang Inventor after: Chen Xianhui Inventor after: Huang Jichang Inventor after: Lin Qiang Inventor before: Tang Junsheng Inventor before: Chen Xianhui Inventor before: Wu Qiang Inventor before: Wang Qiang Inventor before: Huang Jichang Inventor before: Lin Qiang |
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Free format text: CORRECT: INVENTOR; FROM: TANG JUNSHENG CHEN XIANHUI WU QIANG WANG QIANG HUANG JICHANG LIN QIANG TO: TANG JUNSHENG MAI YONGJUN WU QIANG WANG QIANG CHEN XIANHUI HUANG JICHANG LIN QIANG |
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