Phase change electric heating energy storage device

An electric heating device and phase change energy storage technology, which is applied in heat storage heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of not disclosing the type and characteristics of phase change material balls, and reduce electricity consumption Effect

Inactive Publication Date: 2013-03-13
LIAONING KELONG FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Disclosed in CN201885392U is a kind of phase change energy storage water heater, stores energy with porous graphite phase change energy storage device, but this utility model does not disclose the type and characteristics of the phase change material ball used

Method used

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  • Phase change electric heating energy storage device

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Embodiment 1

[0016] Example 1: Phase change energy storage electric heater

[0017] Phase-change energy storage electric heaters are similar in appearance to ordinary household electric heaters, but phase-change energy storage materials are used instead of heat transfer oil, and some control facilities are added, as follows:

[0018] The phase change energy storage material used in the phase change energy storage electric heater is a phase change paraffin wax with a phase change temperature of about 40 degrees. The design heating area is 1.5 square meters, and an electric heater is installed inside the phase change energy storage electric heater. The power is 3 kW. There is a temperature control facility inside the electric heater, the purpose is to stop the heating after the phase-change paraffin is completely liquefied, and turn on the electric heating switch when the temperature of the phase-change paraffin is lower than the phase-change temperature. At the same time, there is a time...

Embodiment 2

[0019] Example 2: 50L phase change energy storage electric water heater

[0020] Phase change energy storage can also be made into an electric water heater. The phase-change energy storage electric water heater is composed of an inner tank, a phase-change paraffin energy storage filling layer, an insulation layer, an outer shell, a hot water heat exchange unit and related control units. The difference from ordinary electric water heaters is that the medium directly heated by phase change energy storage electric water heaters is not water but phase change energy storage paraffin. Compared with several phase change energy storage materials currently used, phase change paraffin is a more obvious Advantage. For example, the latent heat of phase change is high, the supercooling phenomenon is not obvious, and there is no phase separation. The phase-change paraffin wax with a phase-change temperature around 50-60 degrees can be obtained from petroleum products, and the price is r...

Embodiment 3

[0021] Example 3: Phase-change energy storage electric heating wall

[0022] The phase change energy storage electric heating device can also be made into the form of a thermal insulation wall. The phase-change energy storage electric heating wall is composed of an inner tank, an insulation layer, an outer shell, an air channel, a fan and related control units. The phase-change energy storage electric heating wall has an inner tank made of aluminum alloy plates with a height of 2.5 meters, a length of 2 meters and a thickness of 3 cm. The inner tank is evenly filled with electric heating units with a power of 2000W. The discharge port in the liner, the air flows through the above-mentioned air channel under the action of the air pump, and is blown into the room through the air discharge port. The cold air is heated by the liquefied phase-change energy storage material to increase the indoor temperature. The aluminum alloy coil channel is also connected to the tap water pip...

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Abstract

The invention relates to a phase change electric heating energy storage device. Heat-insulating layers of the device consist of two layers; the internal heat-insulating layer is a phase change paraffin heat-insulating layer consisting of 20-degree phase change paraffin with low melting point; the external heat-insulating layer is a polyurethane heat-insulating layer consisting of a common polyurethane heat-insulating material; the two heat-insulating layers are separated by an aluminum alloy shell; an electric heater is arranged at the lower part of an inner container of the heating energy storage device; phase change paraffin of 40 to 50 degrees is filled in the inner container of the heating energy storage device; a heat exchanger for heating heat-transfer mediums such as water and air is arranged in the inner container of the heating energy storage device; the heat exchanger consists of a metal pipeline; and heat exchanger fins are welded at the periphery of the heat exchanger. An electric heating timer is arranged on an electric heating circuit and can automatically control a temperature heating system to turn on in the valley period of electricity price and turn off in the peak period of electricity price. Various forms of phase change energy storage electric heaters, phase change energy storage electric water heaters, phase change energy storage electric heating walls and the like can be manufactured as required.

Description

technical field [0001] The patent of the present invention relates to a thermal energy storage device, especially a phase-change electric heating device that converts electric energy into thermal energy during the period of low electricity price and stores it according to the principle of phase-change energy storage by utilizing the difference in peak and valley flat electricity prices, and releases it during peak hours. energy storage device. Background technique [0002] Phase change material (Phase Change Material, PCM) refers to a substance that changes shape with temperature and can provide latent heat. During the phase change process, phase change energy storage materials can absorb heat (cold) from the environment or release heat (cold) to the environment, so as to achieve the purpose of heat storage and release. Latent heat. Phase change energy storage materials generally have the following characteristics: First, the phase change process is generally an isotherma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H7/02F24H9/18F24H9/20F28D20/02
CPCY02E60/145Y02E60/14
Inventor 安靖东姜艳王笑衡
Owner LIAONING KELONG FINE CHEM
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