CN102283473A - A heat pump shoe last vertical oven - Google Patents

Abstract

A heat pump shoe tree vertical oven comprises a vertical box body, a heat source chamber and a heat pump unit. The vertical box body is a circular heat insulation body, a roller is arranged in the vertical box body, a shoe tree hanging frame is arranged on the wall of the roller, a preheating bin is arranged in the center of the roller, the roller is fixed on the front wall and the rear wall of the vertical box body through a roller shaft frame, and the extending end of the roller shaft frame is connected with a manual rotating wheel outside the vertical box body. The upper part of the vertical box body cavity is provided with an electric heater, and the lower part is provided with an air inlet and an air return duct. The heat source chamber is arranged below the vertical box body, and the air inlet and the air outlet of the heat source chamber are communicated with the air inlet and the air return duct of the vertical box body. The operation cost of the process is one third of that of an electric heating type, the operation cost of the process is one half of that of a coal-fired type, the volume is reduced by two thirds compared with that of a traditional oven, the occupied area is reduced by three fourths, and the defects that the coal-fired type often burns out shoe uppers and pollutes the production environment are fundamentally avoided.

Description

A heat pump shoe last vertical oven

Technical field

The invention relates to shoe last heating equipment in the shoemaking industry, in particular to a heat pump shoe last vertical oven.

Background technique

At present, in the shoemaking industry, the known drying of shoe uppers and heating of shoe lasts generally uses a cylindrical oven with a volume of about 2-8 cubic meters. The heat sources are divided into two types: electric heating and coal-fired heating. The heating method is radiation. The electric heating installed power of different models is 12kw--20kw, and the operating cost is high. The effect of coal-fired heating is that the temperature rises slowly, and when coal is added, the temperature will change, the fire is not easy to control, and it also pollutes the environment and occupies a large area. Its energy consumption per day is about 50-100 yuan.

Contents of the invention

Aiming at the disadvantages of the existing cylindrical electric heating ovens such as high energy consumption and unenvironmental protection of coal-fired ovens, this invention provides a heat pump shoe last vertical oven with the innovative point of three-dimensional circular structure, which uses the principle of heat rise and heat convection to improve thermal efficiency And reduce the power and volume of the oven, facilitate the use of heat pumps, simple operation, energy saving and environmental protection.

The technical solution adopted by the present invention to solve the technical problem is: a heat pump shoe last vertical oven, which is composed of a vertical box, a heat source room and a heat pump unit. The vertical box is a circular heat preservation body with a built-in roller. Wall-mounted shoe last hanger, the center of the roller is the preheating warehouse, the roller is fixed on the front and rear walls of the vertical box by the roller shaft frame, and the extension end of the roller shaft frame is connected to the manual wheel outside the vertical box, and the manual wheel is set Positioning circlips, electric heaters are set on the upper part of the vertical box cavity, air inlets and return air ducts are set on the lower part, and oven doors are set on the front and rear walls.

In the above technical solution, the heat source chamber is placed under the vertical cabinet, and a condenser is built in it. The air outlet end of the condenser is divided into an air supply chamber, and the suction end is separated into a return air chamber, which is connected with the air inlet of the vertical cabinet. It communicates with the return air duct. The heat pump unit is placed on one side of the heat source chamber, connected to the condenser by a medium conduit, and a base is set under the heat source chamber.

Due to the adoption of the above technical solution, the beneficial effect of the present invention is that the outer wall of the drum and the inner wall of the vertical box form a narrow annular drying tunnel, which is conducive to instantaneous temperature rise. In the running state, the hot air from the condenser can be blown directly on the last to be baked, and the heating speed is fast. The symmetrical design of the air return duct can maintain the pressure balance at both ends of the drying duct without damaging the high temperature zone. The shoe last hanger runs 360 degrees in the vertical box and the baked workpiece is heated evenly. The three-dimensional design of the oven can form the upper electric heating high temperature zone and the heat pump fixed temperature zone in the middle and lower part in the oven. If the fixed temperature of the heat pump cannot meet the higher temperature of a specific object, start the electric heater to form a high temperature zone in the upper part of the drying tunnel, but will not Affect the heat dissipation of the lower condenser. The manual wheel is equipped with a positioning clip, which is convenient for operation and positioning. The oven door is designed with less heat loss below. The heat pump is a well-known energy-saving equipment, and its operating cost is one-third of the electric heating type and one-half of the coal-fired type by adopting this process. The three-dimensional structure of the oven also reduces the volume by two-thirds and the floor area by three-quarters compared with traditional ovens, and fundamentally eliminates the disadvantages of burning the upper of the shoe and polluting the production environment of the coal-fired type.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a front view of the present invention.

Fig. 2 is a side structural view of the present invention.

In the figure 1. Vertical cabinet 2. Heat source chamber 3. Heat pump unit 4. Drum 5. Drum shaft frame 6. Shoe last hanger 7. Preheating chamber 8. Manual runner 9. Positioning circlip 10. Electric heater 11. Air inlet 12. Air return duct 13. Oven door 14. Condenser 15. Air supply bin 16. Return air bin 17. Medium duct 18. Base

Detailed ways

In Fig. 1 and Fig. 2, the vertical box body (1) is a circular thermal insulation body with a built-in roller (4), the shoe last hanger (6) is installed on the wall of the roller (4), and the center of the roller (4) is a preheating chamber ( 7), the drum (4) is fixed on the front and rear walls of the vertical box (1) by the drum shaft frame (5), and the extension end of the drum shaft frame (5) is connected to the manual runner outside the vertical box (1) ( 8), the manual wheel (8) sets the positioning circlip (9), and the electric heater (10) is arranged on the upper part of the vertical box body (1), and the air inlet (11) and the return air duct (12) are arranged on the lower part , an oven door (13) is established on the front and back walls.

In Fig. 1 and Fig. 2, the heat source chamber (2) is placed under the vertical box body (1), with a built-in condenser (14), and the air outlet end of the condenser (14) is divided into an air supply chamber (15), and The air end is divided into a return air storehouse (16), and communicates with the vertical box (1) air inlet (11) and return air duct (12). The heat pump unit (3) is placed on one side of the heat source chamber (2), connected to the condenser (14) by a medium conduit (17), and a base (18) is arranged under the heat source chamber (2).

Claims (2)

1. A heat pump shoe last vertical oven, which is composed of a vertical box, a heat source room and a heat pump unit. Its characteristics are: the vertical box is a circular heat preservation body, with a built-in roller, and a shoe last hanger on the wall of the roller. The center of the roller is the preheating chamber, and the roller is fixed on the front and rear walls of the vertical box by the roller shaft frame. The extension end of the roller shaft frame is connected to the manual runner outside the vertical box. The upper part of the box cavity is equipped with an electric heater, the lower part is equipped with an air inlet and return air duct, and the front and rear walls are equipped with oven doors. 2. A heat pump shoe last vertical oven according to claim 1, characterized in that: the heat source chamber is placed under the vertical box body, and a condenser is built in it, and the air outlet end of the condenser is divided into an air supply chamber, The air suction end is divided into a return air chamber, which communicates with the air inlet and return air duct of the vertical box. The heat pump unit is placed on the side of the heat source chamber, connected with the condenser by a medium conduit, and a base is set under the heat source chamber.

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