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Off-peak electricity heat storage house type heating system

A heating system and low-valley electricity technology, applied in the field of low-valley electricity heat storage household heating system, can solve the problems of high cost, unsteady output of water supply and heat power, mismatch of heating water and heat, etc., and achieve the effect of constant heating temperature

Active Publication Date: 2019-08-27
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing double-tank heat storage system includes molten salt pumps, molten salt electric heaters and other equipment with high costs; the single-tank heat storage system has a simple structure and low cost, but is affected by the area of ​​the brine heat exchanger installed in the tank. The temperature of the molten salt does not match the heat of the heating water, resulting in an inconstant output of the thermal power of the water supply

Method used

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  • Off-peak electricity heat storage house type heating system
  • Off-peak electricity heat storage house type heating system
  • Off-peak electricity heat storage house type heating system

Examples

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Comparison scheme
Effect test

Embodiment 1

[0035] The first embodiment is a preferred implementation of the low-valley electric heat storage household heating system of the present invention, such as figure 1 As shown, the heat storage and release unit 2 installed in the hot water exchange tank 1, the electric heater 201 uses the low valley electricity at night to heat the composite phase change material 202 stored in the heat storage and release unit 2 to convert it into heat and store it.

[0036] When the temperature of the heat storage and release unit 2 is higher than 200°C, the first flow sensor 8 and the first electric regulating valve 9 are coordinated by the first flow sensor 8 and the first electric regulating valve 9 to enter the hot water exchange tank 1 through the spray water device 3 and be stored and released. The unit 2 is heated into superheated steam. The superheated steam enters the soda water mixer 10 through the steam header 4, and the heating return water is controlled by the second flow sensor 11 and...

Embodiment 2

[0039] The second embodiment is a preferred embodiment of the low-valley electric heat storage apartment heating system of the present invention. It is similar to the first embodiment, except that the electric heater 301 of the heat storage and release unit 2 is arranged in the middle of the heat storage and release unit 2. The outer surface of the heat storage and release unit 2 is made of a metal material 302 with high thermal conductivity. The outer wall of the metal material 302 is equipped with metal fins 304 that enhance heat transfer. A composite phase change material is installed between the electric heater 301 and the metal material 302. 303, such as image 3 Shown.

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Abstract

The invention discloses an off-peak electricity heat storage house type heating system. A heat storage and release unit and a water spray device are installed inside a heat exchange water tank. A steam header is installed on the top of the heat exchange water tank. An outlet of the steam header is connected with a steam and water mixer, a constant-temperature water tank, a variable-frequency watersupply pump and a radiator in sequence. An outlet of the radiator is divided into two paths. One path of the outlet of the radiator is connected with a first electric control valve, and the other path of the outlet of the radiator is connected with a second electric control valve. The first electric control valve is connected with a first flow sensor and the water spray device in sequence. The second electric control valve is connected with a second flow sensor and an inlet on the water side of the steam and water mixer. A water supplement pipe and a drain pipe are further arranged at the bottom of the heat exchange water tank. According to the off-peak electricity heat storage house type heating system, off-peak electricity of low price at night is utilized for heating heat storage materials in the heat storage and release unit, steam and hot water generated due to control over the surface temperature of the heat storage and release unit are mixed with heating return water to form hot water with a certain temperature, the mixed hot water enters the constant-temperature water tank, and a continuous constant-temperature heat source is provided for a user.

Description

Technical field [0001] The invention relates to a heat storage heating system, in particular to a low-valley electric heat storage household heating system. Background technique [0002] At night, trough electricity is used to heat the heat storage equipment with heat storage materials, which convert trough electricity or renewable energy power generation into heat for storage, and release heat during the day for users to use. The existing double-tank heat storage system includes molten salt pumps, molten salt electric heaters and other equipment that cost more; the single-tank heat storage system has a simple structure and low cost, but it is affected by the area of ​​the brine heat exchanger installed in the tank. The temperature of the molten salt does not match the heat of the heating water, resulting in a constant output of the water heating power. Whether it is a single-tank heat storage system or a double-tank heat storage system for heating small apartments, it must have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D15/02F24D13/00F24D19/10F22B1/02F28D20/02
CPCF24D15/02F24D13/00F24D19/1006F22B1/028F28D20/021F28D20/028F24D2200/08Y02E60/14
Inventor 鹿院卫魏海姣张灿灿于强张银和吴玉庭马重芳
Owner BEIJING UNIV OF TECH
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