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Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler

A gas-fired hot water and economizer technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems that the boiler cannot operate normally, the return water of the hot water boiler system cannot all return to the economizer, and the water flow rate is high. The effect of avoiding low temperature corrosion, reducing temperature differential stress and improving thermal efficiency

Active Publication Date: 2014-04-02
哈尔滨红光锅炉总厂有限责任公司
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problems that the boiler cannot operate normally due to the high flow rate of water in the economizer tube when the existing single circuit circulation is used, and the return water of the hot water boiler system cannot be returned to the economizer, and further provides a fuel-fired gas-fired hot water boiler fully Backwater multi-circuit economizer

Method used

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  • Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler
  • Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler

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specific Embodiment approach 1

[0010] Specific implementation mode one: as figure 1 As shown, the fuel-fired gas-fired hot water boiler full-return multi-circuit economizer of this embodiment includes an economizer body 1, and the lower end of the economizer body 1 is processed with a flue gas condensed water discharge port 1-1, and the multi-channel The road cycle economizer also includes a circulating water outlet header 2, a first water control valve 3, a first drain valve 4, a circulating water inlet header 6, a second water control valve 7, a second drain valve 8, a plurality of first pipeline 5 and a plurality of second pipelines 9, the circulating water outlet header 2 communicates with the economizer body 1 through a plurality of first pipelines 5, and the circulating water inlet header 6 passes through a plurality of second pipelines 9 communicates with the energy saver body 1, the upper end of the circulating water outlet header 2 is installed with the first water control valve 3, the lower end of...

specific Embodiment approach 2

[0011] Specific implementation mode two: as figure 1 As shown, the number of first pipelines 5 in this embodiment is 2-10. Such a design adopts multi-channel circulation to reduce the water flow rate in the pipe, so that all the circulating water of the boiler returns to the main body of the economizer. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation mode three: as figure 1 As shown, the number of second pipelines 9 in this embodiment is 2-10. Such a design adopts multi-channel circulation to reduce the water flow rate in the pipe, so that all the circulating water of the boiler returns to the main body of the economizer. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

Provided is a full-backwater multichannel circulating energy saver for a fuel gas hot-water boiler. The full-backwater multichannel circulating energy saver solves the problem that when existing single loop circulation is adopted, the flow velocity of water in an energy saver pipe is high so that the boiler cannot run normally and backwater of a hot-water boiler system cannot fully return to the energy saver. A circulating water outlet container is communicated with an energy saver body through a plurality of first pipelines, a circulating water inlet container is communicated with the energy saver body through a plurality of second pipelines, a first water-controlling valve is installed at the upper end of the circulating water outlet container, a first water drain valve is installed at the lower end of the circulating water outlet container, a second water-controlling valve is installed at the upper end of the circulating water inlet container, and a second water drain valve is installed at the lower end of the circulating water inlet container. The multichannel circulating energy saver is used for heat exchange of the fuel gas hot-water boiler.

Description

technical field [0001] The invention relates to a hot water boiler full-backwater multi-channel circulation energy-saving device. Background technique [0002] The circulating water volume of the fuel-fired gas-fired hot water boiler is very large. For example, for a system with an outlet water temperature of 95°C and a return water temperature of 70°C, the circulating water volume of a 10.5MW boiler can reach 360 cubic meters per hour. The water velocity is: [0003] [0004] The recommended water velocity of the hot water boiler is 1-3m / s. The high velocity of water in the pipe will cause the pipeline to vibrate. When the vibration is severe, the boiler cannot operate normally. It needs to be overcome by the head of the circulating pump in the system. Therefore, if the resistance is large, the head of the circulating water pump must be increased, and the motor power of the pump will increase as the head increases, thereby increasing the operating energy consumption of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/00F24H9/20
Inventor 朱新伟
Owner 哈尔滨红光锅炉总厂有限责任公司
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