CN105134308A - High-temperature and high-pressure water energy accumulation steam power generation system - Google Patents
High-temperature and high-pressure water energy accumulation steam power generation system Download PDFInfo
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- CN105134308A CN105134308A CN201510433683.4A CN201510433683A CN105134308A CN 105134308 A CN105134308 A CN 105134308A CN 201510433683 A CN201510433683 A CN 201510433683A CN 105134308 A CN105134308 A CN 105134308A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The invention relates to a high-temperature and high-pressure water energy accumulation steam power generation system. The high-temperature and high-pressure water energy accumulation steam power generation system is provided with a pressure-bearing tank, a first turbine set, a second turbine set, a generator and a condenser. High-temperature and high-pressure water in the pressure-bearing tank serves as an energy storage medium and absorbs the heat of a high-temperature heat source. A high-temperature and high-pressure circulation working medium is output to the first turbine set. The first turbine set drives the generator to generate power. The circulation working medium passes the condenser and a high-temperature pump and then flows back to the pressure-bearing tank. Meanwhile, the circulation working medium output by the pressure-bearing water tank is conveyed to the second turbine set, the high-temperature pump is driven, and condensate water is conveyed back into the pressure-bearing tank to be circulated next time. Water serves as the energy accumulation medium, and due to the fact that the specific heat capacity of water under high pressure is increased and water serves as the circulation working medium, safety, environment friendliness and low cost are achieved. Stepwise utilization of energy is achieved, and the energy utilization rate is obviously increased.
Description
Technical field
The present invention relates to a kind of energy storage power generation technology, specifically a kind of high-temperature high pressure water accumulation of energy steam generating system.
Background technique
Prior art power generation system energy storage system adopts atmospheric low-temperature water or phase-change material heat energy storage.Limited (specific heat capacity is 4.2x10 to water energy storage capacity at ambient pressure
3j/kg DEG C), therefore building energy storage pond at use water as usually needing during energy-accumulating medium, taking up an area face comparatively greatly, insulation difficulty.Use cost performance not high.And phase-change material energy storage wide variety, be generally divided into inorganic phase-changing material, organic phase change material, composite phase-change material.Inorganic phase-changing material is generally used for the energy storage of temperature in the scope of 300 DEG C-1000 DEG C.Organic phase change material serviceability temperature is generally the energy storage within the scope of 30-60 DEG C.Composite phase-change just carrys out serviceability temperature and is generally energy storage within the scope of 450-1000 DEG C.Generally speaking, the specific heat of combustion of various phase-change material is relative to lower water, and energy storage effect is poor, cost is high, and partial phase change material is containing toxic, has certain danger in using process.
The condensate return generally power-actuated water pump of direct use in prior art low-temperature generating system, energy needs first to be converted to electric energy in generator by steam, mechanical energy is converted to by electric energy again in water pump, energy causes loss in two times transfer process, reduces the capacity usage ratio of low-temperature generating system.
In prior art low-temperature generating system, cycle fluid is generally different boiling organic substance, and cost is relatively high and have certain toxicity to human body, has destruction to ozonosphere.
In prior art low-temperature generating system, steam turbine is generally fixing overall, and power is fixed.Cannot make adjustment according to the change of thermal source actual conditions, particularly heat source temperature is higher than unit overload operation during design load, and heat source temperature cannot start lower than unit during design load, either way can cause the significant wastage of the energy.
Summary of the invention
For in prior art, energy storage system energy storage effect is poor, cost is high and cycle fluid cost is high, toxic and the deficiency such as to damage the ozone layer, the technical problem to be solved in the present invention is to provide a kind of high-temperature high pressure water accumulation of energy steam generating system safe, green, with low cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
High-temperature high pressure water accumulation of energy steam generating system of the present invention, there is pressure-bearing water pot, the first steam turbine set, the second steam turbine set, generator and condenser, wherein pressure-bearing water pot is interior using the water of High Temperature High Pressure as energy-accumulating medium, absorb the heat of high temperature heat source, export cycle fluid to the first steam turbine set of High Temperature High Pressure, first steam turbine set drives electrical power generators, and cycle fluid is back to pressure-bearing water pot through condenser, high temperature pump; The cycle fluid that pressure-bearing water pot exports is delivered to the second steam turbine set simultaneously, drives high temperature pump, is transmitted back to by condensed water in pressure-bearing water pot and carries out circulation next time.
In the present invention, condenser is connected with heating system, forms heating loop; First and second steam turbine set is multistage detachable standard monomer steam turbine; Bypass is provided with, the modulating valve that the energy that this bypass adds regulator generator group and heating system distributes between the first steam turbine input, output pipe.
The present invention has following beneficial effect and advantage:
1. the present invention is by hot water storage in pressurized container, uses water as accumulation of energy medium raises due to water specific heat capacity under high pressure, and under comparing normal pressure, accumulation of energy total amount improves more than twice, adopts water as cycle fluid simultaneously, safety, green, with low cost; In power generation system, water vapor enters condenser after the first steam turbine set acting, utilizes cooling water in waste-heat condenser to be used for heating, realizes the cascade utilization of the energy.
2. this product steam turbine set is made up of multiple detachable standard monomer steam turbine, and using method is flexible, can select monomer steam turbine quantity, be especially applicable to small-sized solar energy or cogeneration according to thermal source actual conditions; Use the energy between electric control valve regulator generator group and heating system to distribute simultaneously, significantly improve energy utilization rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 is pressure-bearing water pot, and 2 is the first steam turbine set, and 3 is the second steam turbine set, and 4 is generator, and 5 is condenser, and 6 is heating system, and 7 is high temperature pump, and 8 is high temperature heat source, and 9 is modulating valve.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As shown in Figure 1, high-temperature high pressure water accumulation of energy steam generating system of the present invention, there is pressure-bearing water pot 1, first steam turbine set 2, second steam turbine set 3, generator 4 and condenser 5, wherein pressure-bearing water pot 1 is interior using the water of High Temperature High Pressure as energy-accumulating medium, absorb the heat of high temperature heat source 8, cycle fluid to the first steam turbine set 2, first steam turbine set 2 exporting High Temperature High Pressure drives generator 4 to generate electricity, and cycle fluid is back to pressure-bearing water pot 1 through condenser 5, high temperature pump 7; The cycle fluid that pressure-bearing water pot 1 exports is delivered to the second steam turbine set 3 simultaneously, drives high temperature pump 7, is transmitted back to by condensed water in pressure-bearing water pot 1 and carries out circulation next time.
In the present embodiment, the water in pressure-bearing water pot 1 carries out accumulation of energy by the heat absorbing high temperature heat source 8 generation, and the cycle fluid in power generation system is also water.Utilize pressure-bearing water pot 1 as energy-storing container, by hot water storage in pressurized container and pressure-bearing water pot 1, use water as into accumulation of energy medium because water specific heat capacity under high pressure raises, under comparing normal pressure, accumulation of energy total amount improves more than twice, adopt water as cycle fluid simultaneously, safe, green, with low cost.
Condenser 5 is connected with heating system 6, forms heating loop.Bypass is provided with, the modulating valve 9 (the present embodiment is electric control valve) that the energy that this bypass adds regulator generator group and heating system distributes between the first steam turbine input, output pipe.
When cycle fluid temperature or flow are greater than Design of Steam Turbine temperature, open electric control valve, shunt the cycle fluid flowing into steam turbine, the energy between regulator generator group and heating system distributes, and significantly improves energy utilization rate.
Steam turbine set is made up of multistage detachable standard monomer steam turbine, and using method is flexible, can select monomer steam turbine quantity, be especially applicable to small-sized solar energy or cogeneration according to thermal source actual conditions.
Working procedure of the present invention is as follows: during generating, cycle fluid water is first evaporated to steam after pressure-bearing water pot 1 with the heat exchange of High Temperature High Pressure hot water, the first steam turbine set 2 is driven to generate electricity, enter condenser 5 afterwards, the water in the waste-heat condenser 5 after generating is utilized to heat, effective use of energy sources, realizes the cascade utilization of the energy; The folding controlling electric control valve 9 can regulate the assignment of traffic of cycle fluid between heating system and the first steam turbine set, improves heat utilization rate; The steam that pressure-bearing water pot 1 produces drives the second steam turbine set 3 to drive high temperature pump 7 simultaneously, is transmitted back to by condensed water in pressure-bearing water pot 1 and carries out circulation next time.
Claims (4)
1. a high-temperature high pressure water accumulation of energy steam generating system, it is characterized in that: there is pressure-bearing water pot, the first steam turbine set, the second steam turbine set, generator and condenser, wherein pressure-bearing water pot is interior using the water of High Temperature High Pressure as energy-accumulating medium, absorb the heat of high temperature heat source, export cycle fluid to the first steam turbine set of High Temperature High Pressure, first steam turbine set drives electrical power generators, and cycle fluid is back to pressure-bearing water pot through condenser, high temperature pump; The cycle fluid that pressure-bearing water pot exports is delivered to the second steam turbine set simultaneously, drives high temperature pump, is transmitted back to by condensed water in pressure-bearing water pot and carries out circulation next time.
2. by high-temperature high pressure water accumulation of energy steam generating system according to claim 1, it is characterized in that: condenser is connected with heating system, form heating loop.
3., by high-temperature high pressure water accumulation of energy steam generating system according to claim 1, it is characterized in that: first and second steam turbine set is multistage detachable standard monomer steam turbine.
4. by high-temperature high pressure water accumulation of energy steam generating system according to claim 1, it is characterized in that: between the first steam turbine input, output pipe, be provided with bypass, the modulating valve that the energy that this bypass adds regulator generator group and heating system distributes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433683.4A CN105134308A (en) | 2015-07-22 | 2015-07-22 | High-temperature and high-pressure water energy accumulation steam power generation system |
| CN201620428066.5U CN205744023U (en) | 2015-07-22 | 2016-05-12 | High-temperature high pressure water accumulation of energy steam generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433683.4A CN105134308A (en) | 2015-07-22 | 2015-07-22 | High-temperature and high-pressure water energy accumulation steam power generation system |
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| CN105134308A true CN105134308A (en) | 2015-12-09 |
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| CN201510433683.4A Pending CN105134308A (en) | 2015-07-22 | 2015-07-22 | High-temperature and high-pressure water energy accumulation steam power generation system |
| CN201620428066.5U Active CN205744023U (en) | 2015-07-22 | 2016-05-12 | High-temperature high pressure water accumulation of energy steam generating system |
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| CN201620428066.5U Active CN205744023U (en) | 2015-07-22 | 2016-05-12 | High-temperature high pressure water accumulation of energy steam generating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931234A (en) * | 2019-03-26 | 2019-06-25 | 上海交通大学 | Low temperature geothermal energy magnetic floating generator in overbottom pressure accumulation energy type |
| CN113315245A (en) * | 2021-06-07 | 2021-08-27 | 湖南三力能源科技有限公司 | Energy storage system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187562A (en) * | 2021-04-15 | 2021-07-30 | 花潍 | Thermal working medium generator |
| CN114198167B (en) * | 2021-12-06 | 2022-08-19 | 西安交通大学 | Double-working-medium circulating pressurized water energy storage system and control method |
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| CN102147123A (en) * | 2010-02-10 | 2011-08-10 | 同方川崎空调设备有限公司 | Waste heat recovery type heating system of initial station |
| CN102803662A (en) * | 2009-06-19 | 2012-11-28 | 阿文戈亚太阳能新技术公司 | System And Method For Accumulating Steam In Tanks For Solar Use |
| CN103306753A (en) * | 2013-05-24 | 2013-09-18 | 华电国际电力股份有限公司山东分公司 | Cooling water system for turboset and cooling water supplying method |
| CN103890322A (en) * | 2011-02-24 | 2014-06-25 | 蓝瑚科技有限公司 | Methods and apparatus for latent heat (phase change) thermal storage and associated heat transfer and exchange |
| EP2876265A1 (en) * | 2012-07-23 | 2015-05-27 | Abengoa Solar New Technologies, S.A. | Method for operating a thermoelectric solar plant |
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2015
- 2015-07-22 CN CN201510433683.4A patent/CN105134308A/en active Pending
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2016
- 2016-05-12 CN CN201620428066.5U patent/CN205744023U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803662A (en) * | 2009-06-19 | 2012-11-28 | 阿文戈亚太阳能新技术公司 | System And Method For Accumulating Steam In Tanks For Solar Use |
| CN102147123A (en) * | 2010-02-10 | 2011-08-10 | 同方川崎空调设备有限公司 | Waste heat recovery type heating system of initial station |
| CN103890322A (en) * | 2011-02-24 | 2014-06-25 | 蓝瑚科技有限公司 | Methods and apparatus for latent heat (phase change) thermal storage and associated heat transfer and exchange |
| EP2876265A1 (en) * | 2012-07-23 | 2015-05-27 | Abengoa Solar New Technologies, S.A. | Method for operating a thermoelectric solar plant |
| CN103306753A (en) * | 2013-05-24 | 2013-09-18 | 华电国际电力股份有限公司山东分公司 | Cooling water system for turboset and cooling water supplying method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931234A (en) * | 2019-03-26 | 2019-06-25 | 上海交通大学 | Low temperature geothermal energy magnetic floating generator in overbottom pressure accumulation energy type |
| CN113315245A (en) * | 2021-06-07 | 2021-08-27 | 湖南三力能源科技有限公司 | Energy storage system |
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| Publication number | Publication date |
|---|---|
| CN205744023U (en) | 2016-11-30 |
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Application publication date: 20151209 |