Electricity generating and drying integrated system and working method

A working method and drying technology, which is applied in the direction of drying solid materials, drying gas arrangement, and preliminary treatment to promote the drying of solid materials, and can solve the problems of reducing air temperature, cooling medium, and consuming large energy.

Inactive Publication Date: 2016-07-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Because the air drying process needs to consume a lot of heat energy to heat the air, and at the same time release a lot of low-grade heat energy to reduce the air temperature and consume a lot of cooling medium, so the conventional air biomass drying process needs to consume a lot of energy

Method used

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  • Electricity generating and drying integrated system and working method

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Embodiment Construction

[0018] Refer to the attached figure 1 Describe the operation process of the power generation and drying integrated system and working method:

[0019] The working medium 13 enters the cold side of the evaporator 11 after being pressurized by the working medium pump 14, absorbs the heat of the heat source 10 until it is completely evaporated, enters the second expander 12 to expand and perform work, and then enters the hot side of the condenser 8, and the heat on the cold side of the condenser 8 The drying medium 7 is heated, and after cooling, it is pressurized by the working medium pump 14 to complete the steam Rankine subcycle; the heat source 10 enters the hot side of the evaporator 11, heats the working medium 13 on the cold side of the evaporator 11, and then discharges from the outlet of the hot side of the evaporator;

[0020] The drying medium 7 enters the cold side of the condenser 8, absorbs the heat of the hot side of the condenser 8, further increases the temperatu...

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Abstract

The invention discloses an electricity generating and drying integrated system and a working method, and belongs to the field of energy conservation. The electricity generating and drying integrated system is characterized by comprising a steam Rankine cycle subsystem and a drying cycle subsystem; a heat source (10) supplies heat to the steam Rankine cycle subsystem, the condensation waste heat of the steam Rankine cycle is recycled for the drying cycle, the output work of a first expansion machine (4) is used for driving a compressor (9), and the output work of a second expansion machine (12) is used for driving a working medium pump (14); the condensing pressure of the steam Rankine cycle is low, the heat efficiency and the output work are improved, the influence of seasonal changes is avoided, and use of environment cooling media is reduced. The electricity generating and drying integrated system is suitable for drying agricultural and sideline products and has the advantage of being efficient in whole.

Description

technical field [0001] The invention relates to an integrated power generation and drying system and a working method, which belong to the field of energy saving. technical background [0002] The working process of conventional thermal power plants needs to consume a large amount of cooling medium. Generally, the cooling medium is ambient cooling water or ambient air, so its heat transfer efficiency decreases with the increase of ambient temperature. Currently, due to the vigorous promotion of residential air conditioners, my country There are obvious peak and valley characteristics of high electricity consumption in summer and low electricity consumption in winter, so there is an obvious mismatch between conventional thermal power generation and my country's actual electricity demand; at the same time, the current method of directly discharging condensation waste heat through ambient cooling water or ambient air Not only is there a waste of low-grade energy, but also the exh...

Claims

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Application Information

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IPC IPC(8): F01K11/02F01D15/10F26B1/00
CPCF01K11/02F01D15/10F26B21/001
Inventor 岳晨韩东蒲文灏何纬峰伍亚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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