Hot air heating furnace

Abstract

The invention discloses a hot air heating furnace, which comprises a furnace box body, wherein the inside of the furnace box body is provided with a vertical separating plate, the cavity of the furnace box body is separated into a furnace body mounting chamber and a hot air exhaust chamber by the vertical separating plate, the inside of the furnace body mounting chamber is provided with a furnace body, the spaces between the front side wall of the furnace body and the inner wall of the front side of the furnace box body and between the left and right side walls of the furnace body and the inner wall of the furnace box body are air inlet cavities, the left and right walls of the furnace body are gradually contracted inwards from bottoms to tops, the back side wall, the left side wall and the right side wall of the furnace body are respectively provided with an air heat exchange passage, the left side wall or / and the right side wall of the furnace body are respectively provided with an air inlet, the back side wall of the furnace body is provided with a hot air outlet pipe, the top wall of the furnace box body is provided with a fan, the top wall of the furnace box body is provided with an air inlet, the top part of the furnace body is provided with a heat collecting cover, the heat collecting cover is connected with a smoke exhaust pipe, and the side wall of the hot air exhaust chamber is provided with a hot air exhaust pipe. The hot air heating furnace has the beneficial effects that high efficiency and energy saving effects are realized, the air in a greenhouse can flow and can generate convection, and the temperature in the greenhouse is uniform.

Description

Technical field [0001] The invention relates to a hot air heating stove applied to a greenhouse. Background technique [0002] At present, people use greenhouses to grow fruits, vegetables and flowers. This kind of greenhouse mainly relies on sunlight to heat up in the spring and autumn seasons. At night, a layer of straw curtain is placed on the outside of the greenhouse for heat preservation; in the cold winter, a stove or fire wall is heated to maintain the temperature in the shed. When encountering sudden cold weather, it is easy to freeze or freeze the plants in the shed. However, the above heating method has low thermal efficiency, consumes a lot of energy, and the temperature in the shed is uneven, the air does not flow, and it is easy to breed pests and diseases. As a result, the yield of the plants in the shed is low and the market is late. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a high-efficiency and e...

AI Technical Summary

Problems solved by technology

When encountering sudden cold weather, it is easy to frostbite or freeze the plants in the shed to death. However, the above-mentioned heating method has low thermal efficiency and consumes a lot of energy. Moreover, the temperature in the shed is uneven and the air does not flow, which is easy to breed diseases and insect pests. As a result, the yield of plants in the shed is low and the market is late

Images