A waste heat cascade recycling device and working method

Abstract

The invention discloses a waste heat cascade recovery and utilization device and a working method. The device includes: an absorption heat pump system and a thermal power conversion system. The device is coupled with absorption heat pump and heat engine technology, driven by waste heat working fluid, which flows through the heater, high-pressure generator, low-pressure generator and waste heat recovery device in sequence, and the high-temperature and high-pressure steam generated by the high-pressure generator of the device is superheated The turbine expands and outputs mechanical power to generate electricity. The exhaust steam discharged from the turbine and the low-pressure generator produce high-temperature and high-pressure water vapor, which enters the condenser to condense and release heat for heating in winter. The evaporative generator generates cold energy for cooling. , to achieve the effect of cogeneration of heat and power in winter and cogeneration of cooling and power in summer. The device fully recovers the waste heat energy of the working medium in the way of waste heat cascade recycling, making the most economical use of waste heat and energy. While improving the energy utilization rate, it effectively reduces atmospheric heat pollution. It has energy saving and emission reduction, economical operation and wide application range. many advantages.

Description

technical field [0001] The invention relates to a waste heat recovery device, and more specifically relates to a heat pump device for waste heat recovery, which belongs to the technical field of energy engineering. Background technique [0002] Energy conservation and emission reduction is a long-term strategic policy for my country's economic and social development, and it is also an extremely urgent task. Recycling waste heat to reduce energy consumption is of great practical significance to my country's energy-saving, emission reduction, and environmental protection development strategies; at the same time, waste heat utilization plays an increasingly important role in improving labor conditions, saving energy, increasing production, improving product quality, and reducing product costs. greater effect. [0003] In real life, there is a lot of lack of steam and waste heat in the power plant and the waste heat of the flue gas is discharged in vain, which causes a waste of ...

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Problems solved by technology

[0003] In real life, there is a lot of lack of steam and waste heat in the power plant and the waste heat of the flue gas is discharged in vain, which causes a waste of energy and emits a large amount of heat into the atmosphere, resulting in thermal pollution; During the discharge process, a large amount of heat energy is also released into the atmosphere

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