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Forced circulation hot water system with self-power-outage-protection function

A technology of forced circulation, hot water system, applied in the directions of preheating, water heater, feed water heater, etc., can solve the problems of power failure protection, drum fatigue, clapboard problems, etc., to improve safety, high safety, simple structure

Active Publication Date: 2016-08-24
郑州锅炉股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a forced circulation hot water system with self-power-off protection function to solve the drum fatigue and clapboard problems, low-temperature corrosion problems, water cycle reliability problems and Power failure protection and other issues make the hot water system safer and more reliable

Method used

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  • Forced circulation hot water system with self-power-outage-protection function

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Embodiment 1

[0045] figure 2 The schematic diagram of the forced circulation hot water system with self-power-off protection function provided by Embodiment 1 of the present invention, as shown in figure 2 As shown, the forced circulation hot water system provided in this embodiment includes: water-cooled hearth 100, water-cooled wall 110, return water header 200, water-cooled lower header 300, water-cooled upper header 400, drum 500, coal-saving Device 600 and recirculation pipe;

[0046] Specifically, the inlet of the return water header 200 of the hot water boiler in this embodiment is connected to an external water pipe, so that the external water pipe can send water to the return water header 200 . At the same time, the outlet end of the return water header 200 is connected to the water inlet end of the lower header 300 of the water cooling wall, and the return water header 200 is used to supply water to the lower header 300 of the water cooling wall.

[0047] The water-cooled low...

Embodiment 2

[0066] Figure 3a It is a schematic structural diagram of a forced circulation hot water system with self-power-off protection function provided by Embodiment 2 of the present invention. Figure 3b Another structural schematic diagram of the forced circulation hot water system with self-power-off protection function provided by Embodiment 2 of the present invention. Such as Figure 3a , Figure 3b As shown, on the basis of the first embodiment above, further, the water-cooled lower header 300 of the forced circulation hot water system with self-power-off protection function provided by this embodiment includes: the front wall water-cooled lower header 310, the rear The wall water-cooled lower header 320 and the side wall water-cooled lower header 330 , wherein there are at least two side wall water-cooled lower headers 330 .

[0067] Specifically, the water outlet of the return water header 200 is respectively connected to the lower header 310 of the front wall water coolin...

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Abstract

The invention provides a forced circulation hot water system with a self-power-outage-protection function. The provided hot water system mainly comprises a water return collection box, a water-cooling wall lower collection box, a water-cooling wall hearth, a water-cooling wall upper collection box, a drum, an economizer and recirculation pipes. The hearth is used as a low-temperature heating surface. The economizer is used as a high-temperature heating face for heat supply. According to the water circulation flow in a boiler, water flows to the water-cooling wall lower collection box from the water return collection box, enters the water-cooling wall upper collection box, flows to the drum, flows into the economizer from the drum and finally flows out of an outlet of the economizer. In addition, the first recirculation pipe and the second recirculation pipe are arranged; and when power outage happens to the hot water boiler, the water circulation between the drum and the water return collection box and the water circulation between the drum and the economizer are converted into to relatively independent natural circulation loops, the water flow direction of the normal work condition is kept, accidents caused by the fact that working media in a water-cooling wall of the hearth and a pipeline in the economizer are heated and vaporized are prevented, the self-power-outage-protection function of the hot water system of the hot water boiler is achieved, and the low-temperature corrosion to the heating surface is also effectively avoided.

Description

technical field [0001] The invention relates to the thermal power field, in particular to a forced circulation hot water system with self-power-off protection function. Background technique [0002] The hot water boiler is a thermal energy conversion device that provides hot water. It transfers the heat released by the burning fuel to the working medium in the pot-water, so that the temperature of the water in the pot can be raised for heating or domestic use. With the intensification of winter smog in northern my country, the country has gradually paid attention to air pollution control. In recent years, large-capacity hot water boilers for central heating have been widely used to increase central heating and reduce environmental pollution. [0003] Due to the special type of operating conditions of the hot water boiler, it is necessary to ensure that the hot water of the boiler does not vaporize and ensure the safety and reliability of the water cycle. Especially after a ...

Claims

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Application Information

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IPC IPC(8): F24H9/20F22D1/00F24H1/22
CPCF22D1/003F24H1/22F24H9/2007
Inventor 曹习功陈国喜范高峰贾金岭牛讲伟张凤兵闫军政吕宁谢曙光朱丽华王凌云吴红伟
Owner 郑州锅炉股份有限公司
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