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Solar heat collection, energy storage and back heating system applied to thermal generator set

A technology for thermal power generation units and solar heat collection, which is applied in solar thermal power generation, mechanical power generation with solar energy, machines/engines, etc. The effect of heat extraction, reducing heat absorption, and reducing investment

Inactive Publication Date: 2010-09-29
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dish type thermal power generation system and the tower type thermal power generation system have a high concentration ratio and are easy to reach a high operating temperature. The investment cost of the power station is relatively high, and its promotion should take some time

Method used

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  • Solar heat collection, energy storage and back heating system applied to thermal generator set
  • Solar heat collection, energy storage and back heating system applied to thermal generator set
  • Solar heat collection, energy storage and back heating system applied to thermal generator set

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0050] One, structure of the present invention

[0051] Such as figure 1 , 2 , 3, the application object of the present invention is a thermal power generating set A, the present invention is provided with a solar thermal energy storage energy recovery heating system B;

[0052] 1. Thermal power generating set A

[0053] Thermal power generation unit A includes coal-fired boiler 1, steam turbine high-pressure cylinder 2, steam turbine medium-pressure cylinder 3, steam turbine low-pressure cylinder 4, generator 5, 1st, 2nd, 3rd high-pressure heaters 6, 7, 8, feed water pump 9, except Oxygen device 10, No. 1, 2, 3, 4 low-pressure heaters 11, 12, 13, 14, condensate pump 15 and condenser 16;

[0054] Its connection relationship is:

[0055] Coal-fired boiler 1, steam turbine high-pressure cylinder 2, steam turbine medium-pressure cylinder 3, steam turbine low-pressure cylinder 4, genera...

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Abstract

The invention discloses a solar heat collection, energy storage and back heating system applied to a thermal generator set, and belongs to the field of energy conservation and emission reduction of the thermal generator set. The solar heat collection, energy storage and back heating system provided by the invention is connected with the conventional thermal generator set through a pipeline and a valve. The solar heat collection, energy storage and back heating system consists of a heat exchanger, an oil pump, a solar heat collection field, a heat accumulator and a heat exchanger which are connected in turn in a closed-loop mode; a heating working medium input end of the heat exchanger is connected with a center tap of a water supply pump of the thermal generator set; and a heating working medium input end of the heat exchanger is connected with a certain back heating steam extraction pipeline of the thermal generator set. The system can provide qualified heating steam for a certain back-heat heater through proper valve switching operation without changing a thermodynamic system structure of the conventional thermal generator set to stop using back heating extracted steam of a primary steam turbine so that the generating coal consumption of the thermal generator set is reduced and the purposes of energy conservation and emission reduction of the thermal generator set are fulfilled.

Description

technical field [0001] The invention relates to the field of energy saving and emission reduction of a thermal power generating set, in particular to a solar heat collection energy storage regenerative heating system applied to a thermal generating set. Background technique [0002] Thermal power generation is a power generation technology that uses the heat generated by the combustion of fossil fuels in boilers to produce superheated steam, which is used in turbogenerators to generate electricity; its power generation efficiency can reach 40%. At present, in my country's power supply structure, the capacity of thermal power equipment accounts for more than 75% of the total installed capacity. It is estimated that the proportion of coal power in my country's power generation will remain above 70% before 2050. Under the grim situation of increasing consumption of coal resources, increasingly tense supply of electricity and coal, and increasing environmental pressure, it has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G6/06F01D15/10F22B1/00
CPCY02E10/46
Inventor 潘垣张燕平黄树红李建兰许国良明廷臻
Owner HUAZHONG UNIV OF SCI & TECH
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