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

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 ...

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