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Off-peak electricity heat storage boiler and using method thereof

A heat storage boiler and low valley electricity technology, which is applied in the field of effective utilization of low valley electricity in the power grid, can solve the problems of power grid security threats, increase the peak-to-valley difference of the power grid, and increase the power consumption cost of users, so as to reduce energy waste, low use cost, Simple and compact structure

Inactive Publication Date: 2017-08-18
河北井矿新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, many small coal-fired boilers have been changed into electric heating boilers in the industrial process. The use of a large number of electric heating boilers not only increases the peak-valley difference of the power grid, poses a threat to the safety of the power grid, but also increases the power consumption costs of users.

Method used

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  • Off-peak electricity heat storage boiler and using method thereof
  • Off-peak electricity heat storage boiler and using method thereof
  • Off-peak electricity heat storage boiler and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like figure 1 As shown, the present invention provides a low-valley electric heat storage boiler, including: heat storage tank 1, steam drum 2, electric heating device 3, power supply system 4, heat insulation partition 5, first heat exchanger 6, second heat exchanger Heater 7, heat release medium inlet 8, heat release medium outlet 9, steam outlet 10, pressure stabilizing valve 11, return water passage 12, first valve 13, second valve 14, return valve 15 and insulation layer 16; where: The first heat exchanger 6 and the second heat exchanger 7 together form a heat exchange device, and the first valve 13 and the second valve 14 together form a valve group. By controlling the opening and closing of the first valve 13 and the second valve 14, the first The heat exchanger 6 is individually connected or the first heat exchanger 6 and the second heat exchanger 7 are connected together, so that the heat exchange area of ​​the heat exchange device can be adjusted.

[0057] Th...

Embodiment 2

[0071] like figure 2 As shown, the present invention provides a low-valley electric heat storage boiler, which is similar to Embodiment 1, except that the steam drum 2 and heat storage tank 1 are designed separately, and other structures and usage methods are the same as Embodiment 1.

Embodiment 3

[0073] like image 3 As shown, the present invention provides a low-valley electric thermal storage boiler, which is similar to Embodiment 2, except that the cylindrical thermal insulation partition is changed to a square thermal insulation partition 5, and the square thermal insulation partition 5 is arranged in the middle of the heat storage tank 1 , the heat storage tank 1 is divided into two left and right cavities, and the heat storage medium between the left and right two cavities can communicate with each other; the first heat exchanger 6 is set in the left cavity, and the second heat exchanger 7 is set in the left cavity in the right cavity. During the heat release process, the heat release medium first flows through the first heat exchanger (on the left side), and the steam is discharged into the steam drum. When the temperature of the heat storage medium on the left side drops, the first valve 13 is closed, and the second valve 14 is opened, so that The heat exchang...

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Abstract

The invention discloses an off-peak electricity heat storage boiler and a using method thereof. The off-peak electricity comprises a steam pocket and a heat storage tank body. An electric heating device used for heating a heat storage medium is arranged in the heat storage tank body and connected with a power supply system. A heat insulation partition plate and a heat exchange device with the adjustable heat exchange area are arranged in the heat storage tank body. The heat storage tank body is divided into two cavities through the heat insulation partition plate. The heat storage medium circulates in the two cavities. A heat release medium inlet of the heat exchange device is formed in the heat storage tank body, and a heat release medium outlet of the heat exchange device is formed in the steam pocket. The top of the steam pocket is provided with a steam outlet and a pressure maintaining valve. A water return passage is connected between the steam pocket and the heat release medium inlet. Through the off-peak electricity heat storage boiler and the using method thereof, the electric energy utilization efficiency is improved, in the heat storage stage, the heat storage medium in the heat storage tank body is heated through low-cost off-peak electricity at night, needed steam is provided through stored heat energy in the daytime, the peak and valley problem of a power grid is solved, meanwhile, the pollution problem caused by traditional energy source combustion is alleviated, and the off-peak electricity heat storage boiler and the using method thereof have quite important significance for changing the hazy weather.

Description

technical field [0001] The invention relates to the technical field of effective utilization of low-valley power in a power grid, in particular to a heat-storage boiler with low-valley power and a method for using the same. Background technique [0002] The domestic smog problem has attracted worldwide attention, and the smog problem caused by energy consumption has attracted people's attention. An effective way to solve the smog problem is to promote energy structure adjustment and reduce energy waste. [0003] During the "Thirteenth Five-Year Plan" period, under the background of "abandoning wind and electricity" intensified, the energy consumption and environmental pollution caused by coal-fired boilers became more and more serious. In order to reduce energy consumption and at the same time alleviate the problem of smog, the country has introduced the "coal-to-electricity" policy. For this reason, the industrial process changed many small coal-fired boilers into electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B1/02F22B1/28F22B37/00
CPCF22B1/028F22B1/28F22B37/00
Inventor 鹿院卫于强施素丽吴玉庭马重芳
Owner 河北井矿新能源科技有限公司