Warm-air heating machine

Abstract

The present invention provides a warm braw heater, including a warm braw heater body, a solid fuel burning tank, a fume extractor and a blower, wherein, the warm braw heater body sets a fan on the topcenter of the cylinder body, the sides has gate forming warm braw outlet, the lower has ashpan having multiple pylomes on the top plate, the solid fuel burning tank is vertically set on the multiplepylomes on the ashpan plate, and the top is combined with the lid to ensure seal performance, and the lower has a rotary burning frame; the upper front of the vessel of the fume extractor is bent to ''N'' shape, and the front of the vessel is connected to the burning case lid, the end of the vessel is connected to the outlet pipe fixed on the top plate; a drawer ashpan is set in the ashpan for receiving ashes generated in the burning case, a certain space is formed between the top surface of the ashpan and the top surface of the ashpan inner, and the blower is set on the side of the ashpan exterior.

Description

technical field [0001] The invention relates to a warm air heater for heating the inner space of a greenhouse (plastic greenhouse), and specifically relates to arranging a plurality of independent combustion boxes inside a cylindrical machine body, so that solid fuels are respectively burned in the plurality of combustion boxes, and the The hot air generated is supplied to the warm air heater in the inner space of the greenhouse (plastic greenhouse). Background technique [0002] Generally speaking, a greenhouse for cultivating various vegetables or various tropical plants requires a higher temperature for maintaining plant growth. In particular, when the external temperature drops sharply during the freezing period, it is necessary to supply relatively high-temperature air to the interior of the greenhouse through a heating device such as a boiler or a fan heater to maintain a certain temperature in the interior space. [0003] According to the type of fuel used or the way...

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Problems solved by technology

[0007] However, the focus of the above-mentioned conventional warm air heaters is mainly focused on enlarging the heat source of the stove and the heat exchange area of ​​conveying air, thus the structure is complicated, it is not easy to manufacture and assemble, and the manufacturing cost is increased.

[0008] That is, due to the complex structure of the heat exchange method, it is not only difficult to manufacture the heat exchanger, but also increases the manufacturing cost, and at the same time, the complicated heat exchange method significantly reduces the efficiency of the greenhouse

[0009] In addition, due to the use of gas or oil as energy, not only the cost of combustion is increased, the economy is reduced, but there are also serious noise problems in the furnace and the air supply device.

[0010] In addition to the above-mentioned structure, a variety of warm air heaters have been proposed that do not use gas or fuel oil, but instead use briquettes and lignite (hereinafter collectively referred to as "solid fuel") as energy sources. However, due to the insufficient heat of the solid fuel used, there are The problem of not being able to achieve the expected heating efficiency

[0011] The above-mentioned conventional warm air heaters supply solid fuel for combustion in one combustion space at one time, so the combustion efficiency is low, and the heat waste is serious. Compared with the combustion consumption, the heat released is less, and complete combustion cannot be achieved, resulting in Waste of energy. If the air is injected at high pressure to help it burn completely, slag will be formed due to the melting of the solid fuel burned in the combustion chamber, that is, briquettes or lignite, which will cause trouble for subsequent processing.

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