Self-warming type thermochemical heat accumulating device and application

Abstract

The invention relates to a self-warming type thermochemical heat accumulating device and an application. The self-warming type thermochemical heat accumulating device and the application comprise a low-grade heat energy collector, a main reservoir, an auxiliary reservoir, a main reactor and a cooling tower, wherein the low-grade heat energy collector, the main reservoir, the auxiliary reservoir, the main reactor and the cooling tower are connected through circulating pipelines. A main reactor heat exchange tube bundle is arranged in the main reactor. A main reservoir heat exchange coil is arranged in the main reservoir. An auxiliary reservoir heating coil is arranged in the auxiliary reservoir. An auxiliary reactor is arranged in the auxiliary reservoir. The auxiliary reactor is connected with the main reactor through a pipeline. Compared with the prior art, the self-warming type thermochemical heat accumulating device and the application not only can realize efficient heat accumulation of low-grade heat energy but also can effectively improve the temperature grade of stored heat energy.

Description

technical field [0001] The invention relates to a device in the technical field of thermal energy storage, in particular to a self-heating thermochemical heat storage device and its application. Background technique [0002] In order to cope with the energy crisis, people continue to deepen their research on waste heat and renewable energy utilization. Due to the low efficiency of energy utilization, low-grade thermal energy resources (such as industrial waste heat / waste heat and renewable energy) are very abundant in China. If properly utilized, these low-grade thermal energy will become "useful resources", otherwise they will become useless. waste heat. Efficient recovery and utilization of these extensive low-grade heat energy is an important way to solve my country's energy problems, and it is of great significance to alleviate my country's energy pressure and promote the sustainable development of social economy. However, in our country, a large amount of low-grade he...

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Problems solved by technology

The existing Chinese invention patents with the application number CN200710049983.8 of "a low-grade heat energy direct utilization system and its application" and the application number of CN200910250616.3 "low-grade energy conversion system" belong to the direct utilization of low-grade heat energy , the other is to use low-grade heat energy directly for heating and cooling, without considering the time difference between heat supply and demand, the contradiction between space differences and the improvement of heat temperature grade

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