CN103047876B - Maintain the devices and methods therefor of thermal power plant condenser vacuum - Google Patents
Maintain the devices and methods therefor of thermal power plant condenser vacuum Download PDFInfo
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- CN103047876B CN103047876B CN201310006450.7A CN201310006450A CN103047876B CN 103047876 B CN103047876 B CN 103047876B CN 201310006450 A CN201310006450 A CN 201310006450A CN 103047876 B CN103047876 B CN 103047876B
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- water ring
- ring vacuum
- vacuum pump
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- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 230000000740 bleeding effect Effects 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a kind of energy-efficient devices and methods therefor that maintains thermal power plant condenser vacuum that has, comprising: air inlet pneumatic operated valve, preposition condenser, lobe pump, rear condenser, non-return valve, water ring vacuum pump, moisture trap; At inlet end, one pneumatic operated valve is set, in this pneumatic operated valve rear end, one condenser is set, in condenser rear end, lobe pump is set, compress for bleeding, in lobe pump rear end, the second condenser is set again, after the second condenser, check-valves is set, its effect is in the time that this equipment failure is stopped transport, after non-return valve, connect a water ring pump, be connected at moisture trap and water ring pump. The present invention can substitute conventional highly energy-consuming vaccum-pumping equipment under thermal power plant's generating set accidental conditions, there is energy-efficient effect (fractional energy savings reaches 50～90%), be subject to hardly the impact of temperature and water temperature because of it simultaneously, compared with conventional vaccum-pumping equipment, can improve the vacuum of condenser, thereby work to reduce gross coal consumption rate.
Description
Technical field
The present invention relates to condenser vacuum system field, thermal power plant, relating in particular to one, to maintain thermal power plant condenser trueEmpty devices and methods therefor.
Background technology
The quality of condensing steam turbine generator group condenser vacuum, directly affects the economical operation of power plant steam turbine. Impact is solidifyingThe factor of vapour device vacuum is a lot, and wherein, vaccum-pumping equipment hydraulic performance decline is one of the main reasons.
The conventional vaccum-pumping equipment in thermal power plant is generally water-jet pump, penetrates heat pump or water ring vacuum pump etc., and these vacuumizeThe efficiency of equipment is lower, only has 30% left and right, meanwhile, and the pumping performance of these vaccum-pumping equipments (end vacuum value and rate of air sucked in required)Be subject to the impact of temperature or working water temperature very large, because of hydraulic performance decline, cannot maintain the vacuum of condenser in summer, some need are with twoPlatform vavuum pump moves simultaneously, thereby energy consumption is higher, and apparatus of the present invention have been used the load of the air-extractor of method minimizing cleverly,And apply high efficiency lobe pump and make main pump, the pump group service behaviour of this pump and water ring vacuum pump composition is subject to working water hardlyThe impact of temperature, thus energy-efficient effect there is.
Summary of the invention
Problem to be solved by this invention is to provide a kind of energy-efficient thermal power plant condenser vacuum that maintains that hasDevices and methods therefor.
For overcoming the above problems, the present invention by the following technical solutions: maintain the device of thermal power plant condenser vacuum, bagDraw together: air inlet pneumatic operated valve 1, preposition condenser 2, lobe pump 3, rear condenser 4, non-return valve 5, water ring vacuum pump 6, air waterSeparator 7;
Described air inlet pneumatic operated valve 1 connects preposition condenser 2, and the outlet side of preposition condenser 2 connects lobe pump 3, lobe pump3 outlet side connects rear condenser 4 again, and the outlet side of described rear condenser 4 connects non-return valve 5, and described non-return valve 5 is anotherOne end connects water ring vacuum pump 6, and described water ring vacuum pump 6 connects moisture trap 7.
Maintain the method for thermal power plant condenser vacuum: 1, at inlet end, one pneumatic operated valve is set, can closes if desired gas circuit;
2, this pneumatic operated valve rear end arranges a condenser, for by the condensation of bleeding entering, by cold steam contained in bleedingCongeal into for water, to reduce the load of vavuum pump;
3, in condenser rear end, lobe pump is set, compresses for bleeding;
4, in lobe pump rear end, the second condenser is set again, for the gas cooled that compression is heated up, condensation is bled againIn contained residue steam;
5, after the second condenser, check-valves is set, its effect is in the time that this equipment failure is stopped transport, and prevents that atmosphere from pouring in down a chimney to veryDo-nothing system;
6, after non-return valve, connect a water ring vacuum pump, its effect is to provide energy through the gas of lobe pump compression, to enterOne step compression;
7, moisture trap and water ring vacuum pump are connected, and its effect is that the air-water mixture that water ring vacuum pump pump is come in entersRow separates, and gas is discharged in atmosphere, provides working water to water ring vacuum pump simultaneously.
Apparatus of the present invention are mainly used in thermal power plant condenser vacuum system, and first the intake-gas of this device enters onePreposition condenser, remove the steam content of major part in bleeding, and to reduce the load of lobe pump, then enters water ring vacuum pumpFirst gas enter a rear condenser, removes remaining steam content after lobe pump boosts, and reduces on the one hand lobe pumpBack pressure reduces the load of water ring vacuum pump simultaneously.
Under the macroclimate of energy-saving and emission-reduction, this device substitutes conventional highly energy-consuming and takes out under thermal power plant's generating set accidental conditionsVacuum equipment, has energy-efficient effect (fractional energy savings reaches 50～90%), is subject to hardly temperature and water temperature because of it simultaneouslyImpact, compared with conventional vaccum-pumping equipment, can improve the vacuum of condenser, thus play a part reduce gross coal consumption rate.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the method flow diagram of the embodiment of the present invention.
In figure: 1, air inlet pneumatic operated valve; 2, preposition condenser; 3, lobe pump; 4, rear condenser; 5, non-return valve; 6,Water ring vacuum pump; 7, moisture trap.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1: maintain the device of thermal power plant condenser vacuum, comprising: air inlet pneumatic operated valve 1, preposition condenser2, lobe pump 3, rear condenser 4, non-return valve 5, water ring vacuum pump 6, moisture trap 7;
Described air inlet pneumatic operated valve 1 connects preposition condenser 2, and the outlet side of preposition condenser 2 connects lobe pump 3, lobe pump3 outlet side connects rear condenser 4 again, and the outlet side of described rear condenser 4 connects non-return valve 5, and described non-return valve is anotherOne end connects water ring vacuum pump 6, and described water ring vacuum pump 6 connects moisture trap 7.
As shown in Figure 2, maintain the method for thermal power plant condenser vacuum, comprise the following steps:
1, at inlet end, one pneumatic operated valve is set, can closes if desired gas circuit;
2, this pneumatic operated valve rear end arranges a condenser, for by the condensation of bleeding entering, by cold steam contained in bleedingCongeal into for water, to reduce the load of vavuum pump;
3, in condenser rear end, lobe pump is set, compresses for bleeding;
4, in lobe pump rear end, the second condenser is set again, for the gas cooled that compression is heated up, cooling bleeding againIn contained residue steam;
5, after the second condenser, check-valves is set, its effect is in the time that this equipment failure is stopped transport, and prevents that atmosphere from pouring in down a chimney to veryDo-nothing system;
6, after non-return valve, connect a water ring vacuum pump, its effect is to provide energy through the gas of lobe pump compression, to enterOne step compression;
7, moisture trap and water ring vacuum pump are connected, and its effect is that the air-water mixture that water ring vacuum pump pump is come in entersRow separates, and gas is discharged in atmosphere, provides working water to water ring vacuum pump simultaneously.
The present embodiment is mainly used in thermal power plant condenser vacuum system, and first the intake-gas of this device enters before a platformPut condenser, remove the steam content of major part in bleeding, to reduce the load of lobe pump, then enter the gas of water ring vacuum pumpFirst body enters a rear condenser, removes remaining steam content after lobe pump boosts, and reduces on the one hand lobe pumpBack pressure reduces the load of water ring vacuum pump simultaneously.
The present invention is not limited to above-mentioned detailed description of the invention, the announcement of book and guidance according to the above description, neck under the present inventionThe technical staff in territory also can carry out suitable change and amendment to above-mentioned embodiment, and it changes and also should fall into right of the present inventionThe protection domain requiring. In addition,, although used some specific terms in this description, these terms are just for convenientIllustrate, the present invention is not formed to any restriction.
Claims (1)
1. maintain the method that the device of thermal power plant condenser vacuum uses, described device comprises: air inlet pneumatic operated valve,Preposition condenser, lobe pump, rear condenser, non-return valve, water ring vacuum pump, moisture trap; Described air inlet pneumatic operated valve connectsConnect preposition condenser, the outlet side of preposition condenser connects lobe pump, and the outlet side of lobe pump connects rear condenser again, described inThe outlet side of rear condenser connects non-return valve, and the described non-return valve other end connects water ring vacuum pump, and described water ring vacuum pump connectsMoisture trap; Said method comprising the steps of:
(1), at inlet end, one air inlet pneumatic operated valve is set, close if desired gas circuit;
(2), this air inlet pneumatic operated valve rear end arranges a preposition condenser, for by the condensation of bleeding entering, by steam contained in bleedingCondensation becomes water, to reduce the load of water ring vacuum pump;
(3), in preposition condenser rear end, lobe pump is set, compress for bleeding;
(4), in lobe pump rear end, rear condenser is set again, for the gas cooled will compression heating up, the institute of condensation in bleeding againThe residue steam containing;
(5), non-return valve is set after rear condenser, its effect is in the time that this plant failure is stopped transport, and prevents that atmosphere from pouring in down a chimney to vacuum system;
(6), connect a water ring vacuum pump after non-return valve, its effect is to provide energy through the gas of lobe pump compression, further pressesContracting;
(7), moisture trap and water ring vacuum pump be connected, its effect is that the air-water mixture that water ring vacuum pump pump is come in separates,Gas is discharged in atmosphere, provides working water to water ring vacuum pump simultaneously; Described application of installation is in the dimension of thermal power plant's condenser vacuumHold, at the normal alternative conventional vaccum-pumping equipment in service of generating set, realize energy-efficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310006450.7A CN103047876B (en) | 2013-01-05 | 2013-01-05 | Maintain the devices and methods therefor of thermal power plant condenser vacuum |
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| CN201310006450.7A CN103047876B (en) | 2013-01-05 | 2013-01-05 | Maintain the devices and methods therefor of thermal power plant condenser vacuum |
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| CN103047876A CN103047876A (en) | 2013-04-17 |
| CN103047876B true CN103047876B (en) | 2016-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104776013A (en) * | 2015-03-06 | 2015-07-15 | 合肥富通机电自动化有限公司 | Vacuum unit for thermal power plant |
| CN104806881B (en) * | 2015-04-03 | 2017-06-16 | 广东肯富来泵业股份有限公司 | A kind of air cooling Roots pendular ring closed vacuum system and its control method |
| CN104949541A (en) * | 2015-06-29 | 2015-09-30 | 深圳市成德机械有限公司 | Device and method for improving vacuum of power plant condenser and thermal power generation system |
| CN105865219B (en) * | 2016-04-19 | 2017-03-01 | 山西爱晟特环保科技有限公司 | Multistage heat pressing type pumped vacuum systems |
| CN105953601A (en) * | 2016-06-30 | 2016-09-21 | 深圳市国电投资有限公司 | Power plant condenser vacuum maintaining unit provided with water chilling unit |
| CN106288849B (en) * | 2016-08-01 | 2019-08-20 | 河北大唐国际张家口热电有限责任公司 | A kind of condenser vaccum-pumping equipment |
| CN107062928A (en) * | 2017-02-15 | 2017-08-18 | 北京中电云汇技术有限公司 | One kind vacuumizes compensation Air-Cooling Island system |
| CN111828367A (en) * | 2020-07-22 | 2020-10-27 | 中国空气动力研究与发展中心超高速空气动力研究所 | Anti-surge protection device and method for high-speed centrifugal vacuum pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1542483A (en) * | 1977-09-19 | 1979-03-21 | Ryaland Pumps Ltd | Air pump units for exhausting steam turbine condensers and for cooling the turbine |
| CN1466660A (en) * | 2000-09-29 | 2004-01-07 | 纳什-艾尔莫工业有限公司 | Steam-turbine assembly and a method for operating a steam-turbine assembly |
| CN201225296Y (en) * | 2008-06-17 | 2009-04-22 | 华北电力大学 | Water ring vacuum pump capable of improving condensing steam turbine efficiency |
| CN101625203A (en) * | 2009-08-11 | 2010-01-13 | 曾华 | Method for enhancing vacuum of steam condenser |
| CN201953604U (en) * | 2011-01-06 | 2011-08-31 | 焦作市馨之源科技有限公司 | Water cycle vacuum pump unit |
-
2013
- 2013-01-05 CN CN201310006450.7A patent/CN103047876B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1542483A (en) * | 1977-09-19 | 1979-03-21 | Ryaland Pumps Ltd | Air pump units for exhausting steam turbine condensers and for cooling the turbine |
| CN1466660A (en) * | 2000-09-29 | 2004-01-07 | 纳什-艾尔莫工业有限公司 | Steam-turbine assembly and a method for operating a steam-turbine assembly |
| CN201225296Y (en) * | 2008-06-17 | 2009-04-22 | 华北电力大学 | Water ring vacuum pump capable of improving condensing steam turbine efficiency |
| CN101625203A (en) * | 2009-08-11 | 2010-01-13 | 曾华 | Method for enhancing vacuum of steam condenser |
| CN201953604U (en) * | 2011-01-06 | 2011-08-31 | 焦作市馨之源科技有限公司 | Water cycle vacuum pump unit |
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| CN103047876A (en) | 2013-04-17 |
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Effective date of registration: 20230323 Address after: 518000 75037, 7th Floor, Hi-Tech Group Building, No. 2076, Yueliangwan Avenue, Liwan Community, Nanshan District, Shenzhen, Guangdong Province Patentee after: SHENZHEN BOZHONG ENERGY CONSERVATION ENGINEERING TECHNOLOGY Co.,Ltd. Patentee after: Bozhong (Shandong) Industrial Equipment Co.,Ltd. Address before: 518000 Room 107, Building A, Chuangye No.1 Building, No. 43 Yanshan Road, Nanshan District, Shenzhen, Guangdong Province Patentee before: SHENZHEN BOZHONG ENERGY CONSERVATION ENGINEERING TECHNOLOGY Co.,Ltd. Patentee before: SHANDONG BOZHONG VACUUM EQUIPMENT LTD. |