Composite phase-change energy storage movable heat supply vehicle

Abstract

The invention discloses a composite phase-change energy storage movable heat supply vehicle, which is characterized by comprising a cargo truck body comprising a thermal insulation compartment, wherein high / medium / low-temperature phase-change heat accumulators are arranged in the thermal insulation compartment; each phase-change heat accumulator comprises an enclosure; corresponding phase-change materials and heat exchangers are respectively arranged in the enclosure; each phase-change heat accumulator is fixedly connected to the frame through a base; the heat exchangers of the high / medium / low-temperature phase-change heat accumulators are sequentially connected through a connecting pipeline; the heat exchanger of the high-temperature heat accumulator is provided with an outer joint; and the heat exchanger of the low-temperature heat accumulator is provided with an outer joint. The high / medium / low-temperature phase-change heat accumulators are sequentially connected in series, when the heat is filled, the waste heat or surplus waste heat of different temperature gradients can be recovered, and when the heat is released, steam or hot water at different temperatures can be generated. The heat storage capacity of the movable heat supply device can be greatly improved, and the heat filling and releasing time is shortened.

Description

technical field [0001] The invention relates to a phase-change thermal storage mobile heating vehicle, which belongs to the field of mobile heating and phase-change thermal storage. Background technique [0002] At present, my country's energy utilization efficiency is low, and a large amount of waste heat and waste heat are wasted without effective use. This phenomenon is mainly caused by the backward technology of heat energy recovery equipment. With the advancement of industrial technology and the improvement of people's living standards, the demand for heat energy is increasing day by day. The distance and coverage of hot water or steam pipe networks provided by heating companies in various places are limited. Some users who cannot obtain heat supply need to build their own coal-fired , fuel oil and gas boilers to generate heat energy, involving environmental protection, safety, low heat energy utilization, high production and maintenance costs and other issues. In many...

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Problems solved by technology

Inorganic phase change materials mainly refer to chlorides, nitrates, phosphates, etc. of alkali and alkaline earth metals, which have the advantages of large latent heat of phase change, high thermal conductivity, small volume change during phase change, and low price. The disadvantage is that it is prone to supercooling and phase separation phenomenon, more corrosive

Organic phase change materials mainly include paraffin, organic acids and other organic substances, which have the advantages of not being easy to overcool and phase separation, less corrosive, and stable performance, but have low thermal conductivity, low material density, volatile, and poor energy storage capacity per unit volume. , high price and other disadvantages

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