Low-grade industrial waste heat recycling system

Abstract

The invention relates to the technical field of industrial waste heat recycling, solves the problem that low-grade waste heat in current industrial production is difficult to recycle, and particularly relates to a low-grade industrial waste heat recycling system which comprises an energy recycling front end for recycling industrial waste heat and converting heat energy into electric energy, the energy utilization rear end is used for utilizing the electric energy converted by the energy recovery front end, the energy recovery front end is connected with the energy utilization rear end through a wire, and the energy recovery front end comprises a heat expansion plate, a first heat conduction layer, a device layer, a second heat conduction layer and a heat dissipation layer which are sequentially arranged from top to bottom. According to the system, the purpose of directly converting low-grade industrial waste heat into electric energy for recycling is achieved, one-step recycling of the industrial waste heat can be achieved, and the system is simple in structure, free of maintenance, free of noise and pollution in work and excellent in working condition adaptability and has very wide application prospects.

Description

technical field [0001] The invention relates to the technical field of industrial waste heat recovery and reuse, in particular to a low-grade industrial waste heat recovery and reuse system. Background technique [0002] In industrial production, more than half of the energy is wasted in the environment in the form of waste heat, such as smoke exhaust from gas furnaces in the machinery industry, smoke exhaust during molten iron casting, radiation heat dissipation when molten iron solidifies and cools in the flask, exhaust gas from internal combustion engines and Heat transfer, etc., there is very little energy that can be effectively used for actual production or mechanical work. The high temperature flue gas and radiation and conduction heat dissipation not only cause a serious waste of energy, but also aggravate the greenhouse effect and environmental pollution. [0003] However, due to the wide distribution temperature range, low energy density and discontinuous generati...

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Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a low-grade industrial waste heat recovery and reuse system, which solves the problem that the low-grade waste heat in current industrial production is difficult to recycle, and achieves the direct conversion of low-grade industrial waste heat into electrical energy recovery The purpose of utilization can realize one-step recovery and reuse of industrial waste heat. The system has a simple structure, no maintenance, no noise, no pollution, excellent adaptability to working conditions, and has a very broad application prospect.

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