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Solar energy storage method and device for biomass gasification energy storage

A heat storage device and solar energy technology, which is applied in the direction of solar thermal devices, solar thermal power generation, heating devices, etc.

Inactive Publication Date: 2008-12-31
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The energy storage system of solar thermal power generation is the key to ensure the stable operation of the solar power generation system day and night. A good energy storage system should have three functions: when the solar radiation peaks, it can store excess solar energy for supplying the power generation system at night Application; in cloudy weather, the energy storage system should output the accumulated energy to make up for the lack of solar radiation; in continuous rainy weather or seasons, the energy storage system should output enough supplementary energy to ensure the stable operation of the power generation system; for the existing solar energy storage system None yet meet the above requirements

Method used

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  • Solar energy storage method and device for biomass gasification energy storage
  • Solar energy storage method and device for biomass gasification energy storage
  • Solar energy storage method and device for biomass gasification energy storage

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Experimental program
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Embodiment 1

[0021] like figure 1 As shown, the solar heat storage device for biomass gasification energy storage of the present invention includes a solar collector 28, a hot water storage device 23, a serpentine finned tube heat exchanger 4, a purifier 9, and a gas storage cabinet 6 , burner 7, waste heat recovery heat exchanger 17, solar collector 28 is a tower type, trough type or compound parabolic heat collector, and this device also includes a heat pipe type gasifier 1, which is provided with a heat pipe 2, so The heat pipe 2 provided in the gasification furnace 1 described above is a high-temperature heat pipe. The high-temperature heat pipe 2 is a heat pipe in which metal sodium and potassium are working fluids. The upper end of the heat-pipe gasifier is provided with a gas outlet 24, and the lower end is provided with a material inlet 25. The outer wall of the heat-pipe gasifier is provided with a flue gas jacket 3, and the heat-absorbing section 26 of the heat pipe is arranged ...

Embodiment 2

[0023] Figure 4 It is another structural form of the gasifier of the present invention. The hearth of the gasifier 1 is distributed into two parts 1 and 1'. 1 is the fluidized reaction zone of biomass 22 and steam 11, and 1' is the dust settlement zone of biomass combustible gas 15. The biomass 22 is added from the upper part of the fluidized zone 1, and the steam 11 enters the fluidized zone from the lower spray hole 30 of the fluidized zone 1 to react with the biomass 22. The ash after the reaction overflows from 29. The ash that the generated biomass combustible gas 15 brings out settles in the 1' settlement zone. The ash filter plate 31 is arranged at the outlet of the settling zone. The high-temperature flue gas 13 transfers heat to the heat-absorbing section 26 of the high-temperature heat pipe 2 in the heating chamber 33 . Helical fins 32 are provided on the heat absorbing section 26 . The high-temperature heat pipe 2 transfers the heat of the flue gas to the hea...

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Abstract

The invention relates to a solar heat storage method and device for biomass gasification energy storage. It includes a solar collector, a heat exchanger, a burner, a waste heat recovery heat exchanger, a heat pipe gasifier, a heat pipe gasifier, and a heat exchanger. There is a heat pipe in the gasification furnace. A flue gas jacket is provided on the outer wall of the heat pipe gasification furnace. The heat absorption section of the heat pipe is located in the flue gas jacket. The heat release section of the heat pipe is located in the heat pipe gasification furnace. It uses the hot water collected by the solar collector to form water vapor through the heat exchanger, and sends it to the gasifier for reduction reaction with the biomass. The generated combustible gas enters the gas storage cabinet and enters the combustion chamber when the solar energy supply is insufficient. After combustion, the high-temperature flue gas is released to the solar power generation system. The flue gas released after combustion in the combustion chamber also enters the flue gas jacket of the gasifier through the heat exchanger. After heat exchange, it is cooled by cold water and is discharged through the fan. The heated cold water is used For civilian use. In this way, solar energy becomes part of the biomass gas and is stored in the gas cabinet as auxiliary energy. It is a simple, efficient and reliable energy storage method.

Description

Technical field: [0001] The invention relates to a solar thermal storage device, in particular to a solar thermal storage method for biomass gasification energy storage and a device thereof. Background technique: [0002] The energy storage system of solar thermal power generation is the key to ensure the stable operation of the solar power generation system day and night. A good energy storage system should have three functions: when the solar radiation peaks, it can store excess solar energy for supplying the power generation system at night Application; in cloudy weather, the energy storage system should output the accumulated energy to make up for the lack of solar radiation; in continuous rainy weather or seasons, the energy storage system should output enough supplementary energy to ensure the stable operation of the power generation system; for the existing solar energy storage system None yet can satisfy the above requirements. Invention content: [0003] The purp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10B57/00F24J2/04
CPCY02E10/44Y02P20/133
Inventor 张红陶汉中庄骏陈兴元
Owner NANJING TECH UNIV
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