A two-way airflow baking device

Abstract

The invention provides a two-way airflow baking device, which includes: a partition parallel to the inner wall is arranged in the box, a partition is arranged at the rear of the box, a box door is opened on the box, and the external unit of the heat pump system and the box are used Quality pipeline connection; the upper dehumidification evaporator and the lower dehumidification evaporator connected by the insulation pipeline in the compartment are placed obliquely and relatively located at the top and bottom of the heat pump return air duct, and the pipeline fan in the insulation pipeline sucks in the air and distributes it to Two dehumidification evaporators are used for dehumidification respectively; the main condenser is located in the center of the compartment and is connected to the heat pump system, and the main condenser is used for heat exchange and temperature rise of the air flow during air circulation; the upward heater and the downward heater are located in the box The top and bottom ends of the opposite partitions at the rear; the heat storage tank is connected to the water source pipe and to the tank pipe; the steam generator is connected to the steam pipe of the tank and to the water pipe of the heat storage tank to generate steam The water heater converts the water in the heat storage tank into steam and sends it into the tank.

Description

technical field [0001] The invention belongs to the technical field of drying, and in particular relates to a two-way airflow baking device, which is used for baking daily materials, and is especially suitable for experimental research on material baking technology. Background technique [0002] Many primary agricultural products or other different types of materials need to go through the primary process of roasting. The quality of the roasting process directly affects the production efficiency. For example, the initial roasting of tobacco leaves, etc. The roasting process of different types of materials is also diverse. Strengthen research The optimal baking process for specific materials has a great guiding effect on improving the baking quality. During the baking process, the temperature and humidity control requirements are very strict. Different stages have different requirements for temperature and humidity. While evaporating water, it is necessary to retain the aroma...

AI Technical Summary

Problems solved by technology

[0003] At present, there are various structural forms of ovens on the market. For hot air circulation ovens that adopt vertical airflow, the airflow direction is fixed and single, and either can only provide ascending airflow, or can only provide descending airflow, and For the baked materials in the box, the air flow direction is one of the important factors affecting the baking quality. A single air flow direction is not conducive to the balanced and simultaneous drying of the baked materials themselves, and is also not conducive to the realization of the temperature flow field in the oven. The uniformity control of the distribution can easily lead to local over-drying and local under-drying, which will have a great impact on the baking quality

[0004] In addition, the heating of existing ovens mostly uses simple electric heating for hot air circulation. When the baking temperature is high, it is difficult to meet the temperature rise requirement completely by the heat pump condenser.

The air source heat pump is greatly affected by the temperature of the external environment, and most of the air circulation is open or partially depleted semi-open, and the heat supply and heat load are prone to mismatch when dehumidifying and ventilating; the temperature control method adopts The way of stopping and starting the heat pump system causes large fluctuations in temperature and humidity inside the box, which is not conducive to the stability of baking data, and frequent stopping and starting has a great impact on the power grid, which will also have a negative impact on the reliability of system equipment

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