Direct contact-type phase change moving heating device and heat supply method

Abstract

The invention discloses a direct contact-type phase change moving heating device, which comprises a heat storage box, a heat accumulation chamber and a heat exchanger, wherein the heat accumulation chamber is arranged in the heat storage box and is filled with phase-change materials, and the inner part of the heat exchanger is filled with high temperature mediums, a fluid working medium outlet pipe is arranged at the upper part of the heat accumulation chamber, and a fluid working medium inlet pipe is arranged at the lower part of the heat accumulation chamber; the fluid working medium inlet pipe and the fluid working medium outlet pipe respectively pass through the heat storage box and the heat accumulation chamber and are respectively communicated with the heat exchanger; and a fluid working medium pump is arranged on the fluid working medium inlet pipe. The direct contact-type phase change moving heating device is simple in structure and large in heat storage capacity; moreover, the fluid working medium is injected to the heat accumulation chamber through a nozzle so as to directly contact with the phase-change materials for heat exchange, so that two heat conduction steps are reduced, the heat transfer efficiency is greatly improved, and the volume of the whole set of equipment is greatly reduced; meanwhile, a heat storage pipe body is saved in a direct contact heat storage system, therefore, the consumption of the metal is saved, and the cost of manufacture is greatly reduced.

Description

technical field [0001] The invention relates to an energy storage and release device, in particular to a direct contact phase change mobile heating device and a heating method. Background technique [0002] Energy and environmental protection are the biggest bottlenecks restricting industrial development. Energy saving and consumption reduction have become the pursuit goals of national economic development; in industrial production, because the supply and demand of many energy have strong timeliness; The generation is discontinuous, often resulting in a great loss of waste heat; mobile heating technology can store the generated waste heat, and supply the stored heat at any time according to the needs; this can not only improve the comprehensive utilization of energy, but also reduce Cost of production. [0003] The mobile heating technology used today mainly has the following problems: First, the phase change material is filled in the dense heat storage tube body, and the p...

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Problems solved by technology

[0003] The mobile heating technology used today mainly has the following problems: First, the phase change material is filled in the dense heat storage tube body, and the purpose of heat storage and release is achieved through the flow of heat medium outside the tube; this consumes a lot of metal and makes the The manufacturing cost is high and the transportation cost is high; second, the heat medium is in indirect contact with the phase change material, the heat exchange efficiency is low, the energy utilization rate is low, and the heat storage capacity is small; third, the heat storage tube body is easily polluted and fouled by the heat medium outside the tube , the thermal resistance of water and phase change materials increases, the heat transfer performance decreases, and the equipment needs regular maintenance; Fourth, due to long-term transportation bumps, the pipes may be fatigued and damaged, and the phase change materials will leak, which will affect the safety of the system

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