Energy-saving type boiler

Abstract

The invention relates to an energy-saving type boiler, comprising a heat exchange chamber arranged on the upper part of a boiler body and a furnace hearth arranged on the lower part of the boiler body, wherein the heat exchange chamber consists of a water-storing cavity, a smoke exhaust pipe and a main smoke pipe; the furnace hearth consists of a furnace gate, a furnace slag chamber, a furnace door and a clearing slag port; the furnace gate is divided into a pyramidal part and a plane part; the furnace gate close to one side of the furnace door is the pyramidal part which radially extends into a furnace hearth from the furnace door in descending order. The furnace gate is divided into a pyramidal feed zone and a plane zone, which can ensure that: the fuels are gradually heated and burned along the pyramidal zone, rolled to the plane zone for continuous burning and then discharged from the plane zone. The energy-saving type boiler has the characteristics of ingenious design, reasonable structure and sufficient air supply as well as fuel burning; moreover, the long burning travel of fuels in the boiler ensures that the fuels are difficult to directly drop in the furnace slag chamber and discharge out, thereby saving energy and fuels. At the same time, as the energy-saving type boiler changes the direct discharging type into the backward-flow type for discharging smoke, the high-temperature fuel gas forms reheating, so as to ensure more sufficient heat exchange, larger gas producing quantity and quicker gas producing speed.

Description

Technical field: [0001] The invention belongs to the field of boilers, and particularly relates to an energy-saving boiler with a cone-shaped grate. Background technique: [0002] There are many types of existing boilers, and there are two factors to consider whether to save energy, one is sufficient combustion, and the other is heat exchange efficiency. At present, coal-fired, wood-fired boilers that use solids as fuel, the furnace body is divided into upper and lower sections, the lower section is the furnace, and the grate and slag chamber are set underneath, and the furnace door is opened at the corresponding position on the furnace wall And the slag removal port; the upper section is the heat exchange chamber, which is equipped with a smoke exhaust pipe and a water storage cavity. The water storage cavity is equipped with necessary observation windows, pressure gauges, steam outlets, and water inlet and outlet valves. There are two main types of heat exchange methods. One is...

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Problems solved by technology

The design of the furnace grate directly affects the utilization rate of the fuel. The existing ones are all flat structures, so that the fuel is piled up on it like a small hill. The surface layer is well ventilated and the combustion is complete. The fuel filled in the fuel can also be fully burned. Therefore, a lot of unburned fuel will fall into the slag chamber and be discharged, resulting in unnecessary waste; and the direct exhaust smoke scheme at the top of the boiler undoubtedly exhausts the smoke during combustion. The smoke is smoother, but it also takes away a lot of heat energy; moreover, the structure of the existing boiler water storage chamber is not reasonable. When the water temperature is low in winter, when the boiler is supplemented with water, the water temperature will inevitably drop, resulting in a sudden drop of steam, which will affect the continuous gas supply.

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