Heat-accumulating heat supply unit and heat-accumulating structure thereof

Abstract

The invention aims to overcome the defects of the existing heating equipment such as boilers and the like, and provides a heat-accumulating heat supply unit, which uses heat-accumulating bricks as a heat-accumulating medium, has a heat-release-process-controllable large-capacity heat-accumulating structure, and is a heat-release-process-controllable large-capacity heat-accumulating heat supply unit. In particular, the invention provides a heat accumulator for storing heat for the heat-accumulating heat supply unit, and a shell of the heat accumulator is made of high-temperature insulating material; and heat-accumulating bricks, a heat exchange water pipe, a fan and an electric heater are arranged in the shell. The heat-accumulating heat supply unit comprises a thermal insulation system, a conduction system, a control system and a safety system except the heat accumulator.

Description

technical field [0001] The invention relates to a heat storage heat supply unit, in particular to a heat storage heat supply unit with a unique heat storage structure. Background technique [0002] Currently feasible heating systems and heat sources for domestic hot water supply systems mainly include coal-fired boilers, oil-fired boilers, gas-fired boilers, solar boilers and electric heaters. Generally, the operating cost of coal-fired boilers is low, but the exhaust gas, waste, waste water, etc. discharged will cause serious pollution to the environment; the exhaust gas of oil-fired boilers and gas-fired boilers has less environmental pollution, but the operating costs are high; solar energy is the cleanest Energy, but at present, the conversion efficiency of photoelectric and photothermal energy is low, the output is not stable enough, and the application cost of providing large heat capacity is too high; although general electric boilers have no emissions and no pollutio...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used electric heating heat storage method is to add a hot water storage tank on the basis of the original electric heater, and use water as the medium to store electric heat, but there are many disadvantages in water heat storage: first, the boiling point is reached at 100 degrees Celsius , and its evaporation rate increases with the increase of temperature after it is higher than room temperature, so the temperature of the hot water storage tank cannot be higher than 90°C; second, the heat capacity of water is very low, and the heat capacity per unit volume cannot be increased. If a large amount of heat needs to be stored , the volume of the required water tank is very large, which makes the floor area very large, and further makes the equipment for controlling the balanced heating very complicated, the total investment is large, and the operation is also very inconvenient

There is another method that uses electricity to heat high-temperature heat storage, then heats the cold air, and uses a fan to send heat for heating. However, because it can only send dry hot air, it is not comfortable for the human body, and it cannot supply hot water, so the application range is narrow.

At present, there are technologies that use heat storage bricks instead of water as heat storage medium, but they all use heat storage bricks to directly heat heat transfer media such as water or air, and lack of control over them to provide stable and continuous heating and hot water output.

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