Jet flow type forced convection and circulation device for toughening furnace

The utility model belongs to the technical field of toughening equipment for glass pot covers and particularly relates to a jet flow type forced convection and circulation device for a toughening furnace. The jet flow type forced convection and circulation device for the toughening furnace comprises an air compressor, wherein the air compressor is connected with a filter through a pipeline, the filter is connected with a gas storage tank through a pipeline, the gas storage tank is connected with a refrigeration dryer through a pipeline, the refrigeration dryer is communicated with a heat-resistant pipeline located in a furnace body through a pipeline, the heat-resistant pipeline is connected with one end of a spiral pre-heating pipe, the other end of the pre-heating pipe is communicated with a compressed air inlet in a jet flow valve, the compressed air inlet is communicated with a whirl cavity, the whirl cavity is communicated with a jet seam, the jet seam is communicated with an outlet of the jet flow valve, the outlet of the jet flow valve is communicated with a convection spraying pipe, and air spraying holes facing glass are formed in the convection spraying pipe. The jet flow type forced convection and circulation device for the toughening furnace has the advantages that the use amount of compressed air can be reduced, the overall uniformity and stability of the temperature of the furnace are improved, glass heating quality can be guaranteed, and toughening quality can be improved.