Gypsum board production line moisture air low-temperature power generating technology

Abstract

The invention discloses a gypsum board production line moisture air low-temperature power generating process. A low-boiling-point heat exchange working medium and water way bidirectional circulating technology is adopted. High-temperature moisture air changes into high-temperature hot water after passing through an exhaust heat recycling device; high-temperature hot water exchanges heat with a heat exchange working medium in an evaporator, and the heat exchange working medium is changed into gas state from liquid state, a low-level steam turbine power generating set is realized to generate electricity; after electricity is generated, the heat exchange working medium enters a condenser and changes into the liquid state through cooling; through the recycling and utilization by a recycling device, low-temperature water obtained through heat exchanging in the evaporator enters the condenser and acts as the cooling water of a gas state heat exchange working medium, and then enters the exhaust heat recycling device for recycling; the energy of the high-temperature moisture air is utilized during the whole process, the exhaust heat is converted into electricity energy, and the moisture air is converted into water for recycling and utilization; the gas and liquid conversion of the heat exchange working medium through the heat absorption and heat discharge of water, the power generating machine set is realized to generate electricity; the energy is saved, and the environment is protected; the production cost is lowered; and the economic benefit of enterprises is improved.

Description

technical field [0001] The invention relates to the technical field of low-temperature heat energy recycling in a gypsum board production line, in particular to a low-temperature power generation process with humid air in a gypsum board production line. Background technique [0002] After the drying of the gypsum board production line, a large amount of humid air is produced, including the residual heat of the hot air after drying the gypsum board and the latent heat of vaporization of the water vapor after the water in the board evaporates. The overall temperature range is 120-150°C. The existing domestic treatment method is generally to directly discharge it into the atmosphere. Even though there are precedents for heat recovery such as heat pipes, there is a disadvantage of low heat recovery efficiency, which causes a lot of waste of energy. Contents of the invention [0003] In order to solve the above existing technical problems, the present invention provides a low-t...

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Problems solved by technology

The existing domestic treatment methods generally discharge it directly into the atmosphere. Even though there are precedents for heat recovery such as heat pipes, there is a disadvantage of low heat recovery efficiency, which causes a lot of waste of energy.

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