High-voltage heat accumulating and heating device

Abstract

The invention relates to a high-voltage heat accumulating and heating device which comprises a high temperature resisting and heat insulating box body, a high-voltage power supply, a power supply controller, high-voltage heating bodies, a high-temperature heat accumulator and a heat exchanger. The high-voltage heat accumulating and heating device adopts the technical essentials that a high-temperature heat accumulating unit made of a high temperature resistant heat insulating material is arranged in the box body, and the high-voltage heating bodies connected with a high-voltage network power supply are uniformly distributed in the high-temperature heat accumulating unit; the heating heat exchanger is arranged at a position corresponding to the high-temperature heat accumulating unit, and a closed high-temperature hot air circulating channel is arranged between the high-temperature heat accumulating unit and the high-temperature heating heat exchanger; and a frequency conversion blower used for driving high-temperature hot air to circulate is arranged in the high-temperature hot air circulating channel. Because the frequency conversion blower is used for driving hot air in the air close loop channel to circulate and flow and the high-temperature heat exchanger is used for heating circulating water in a heating system for heating, a plurality of technical problems brought by directly introducing a high-voltage network for heating are solved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection heating, and specifically relates to a high-voltage electric thermal storage heating device that directly uses a high-voltage power grid for power supply during low-valley electricity at night. Background technique [0002] At present, coal-fired boilers are mainly used for heating in winter in northern my country, but the environmental pollution caused by coal-burning is always an unsolvable problem. Although ground-source heat pumps, central air-conditioning and other heating methods can solve environmental problems, the higher heating costs And expensive post-maintenance costs limit the popularization and development of these methods. Recently, domestic and foreign countries have successively proposed the heating method of using the low-peak power of the power grid at night for heat storage, which can better solve environmental problems and reduce heating costs, and has been wel...

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Problems solved by technology

However, this type of electric energy storage requires a low-voltage power transformer to supply power. If the heating area exceeds 10,000 square meters, the current capacity of the power transformer for low-peak energy storage cannot meet the actual requirements.

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