High-efficiency gas supply device for gas boiler

Abstract

The invention relates to the technical field of fans, and discloses a high-efficiency gas supply device for a gas boiler. The high-efficiency gas supply device comprises a casing, an accelerating assembly and a cleaning assembly, wherein an accelerating cavity and a containing cavity are formed in the casing; the accelerating cavity communicates with the containing cavity; the accelerating assembly is rotationally arranged in the accelerating cavity; the cleaning assembly is movably arranged between the accelerating cavity and the containing cavity; and an air inlet, a first air outlet and a second air outlet communicating with the accelerating cavity are further formed in the casing, wherein valves are arranged in the first air outlet and the second air outlet respectively. When the device is in a shutdown cleaning state, the first air outlet is closed, the second air outlet is opened, the cleaning assembly moves from the containing cavity into the accelerating cavity, and the cleaning assembly cleans the accelerating assembly; and when the device is in a pollution discharge state, the first air outlet is closed, the second air outlet is opened, the cleaning assembly moves into the containing cavity again, and the accelerating assembly sends residual accumulated ash in the accelerating cavity out of the second air outlet through air flow, so that the purpose of quick ash removing is achieved.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a high-efficiency gas supply device for a gas boiler. Background technique [0002] A fan is a device that absorbs air from the outside, accelerates the air inside, and then sends it out. Among them, a fan is often needed in a large gas-fired boiler, and a large amount of air is sent in through the fan to ensure the normal oxidation reaction in the boiler. [0003] The patent of the existing notification number CN202659532U discloses a fan that does not change the flow direction of the exhaust gas, including a fan housing and an impeller. An air outlet is arranged at the upper end of the side opposite to the air inlet; [0004] When the impeller rotates, the impeller pushes the gas in the fan housing to be discharged from the air outlet, and the air inlet continuously fills in new air. [0005] There are following defects in the above-mentioned prior art scheme: [0006] When th...

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Problems solved by technology

[0006] When the fan is used for a long time, the side of the blade that pushes the airflow is very likely to stick to the dust in the air and form accumulations. In order to prevent large pieces of ash from pouring into the gas boiler, the fan needs to be disassembled periodically to remove the dust on the blades. , but it is time-consuming to disassemble and assemble the fan, and it is necessary to suspend the air supply in the gas boiler for a long time, resulting in long-term lack of oxygen in the gas boiler, which affects the combustion efficiency

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