A louvered air induction device

Abstract

The application relates to the technical field of air guiding devices, and discloses a louvered air guiding device, which solves the problem that the heat at the bottom of a heating element cannot be fully utilized due to space limitation, and comprises an air guiding box, the inside of the air guiding box is provided with an inner cavity, the inner side of the inner cavity is provided with a rotating shaft, the top of the rotating shaft is fixedly provided with a fan blade, and the top of the air guiding box is provided with a cover plate; the fan blade can be rotated through cooperation between a motor and the rotating shaft, so that when the airflow at the bottom of the heating element enters the inner cavity, the airflow can be discharged upwards through an air outlet, internal circulation of air is realized, and the convection effect is improved; compared with natural convection heat exchange, forced air convection heat exchange is about several times larger than natural convection and radiation heat exchange, so under the same condition, the uniformity of the internal temperature of a furnace body can be rapidly improved, and the working time of the electric heating element can be reduced to achieve the effect of reducing energy consumption.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air guiding devices, and particularly relates to a louvered air guiding device. BACKGROUND

[0002] The louvered thermal cycle convection device belongs to a key heating element for improving thermal efficiency, and the element can change the internal air flow mode, improve the thermal efficiency and greatly reduce the equipment energy consumption by being added in an electric resistance furnace, and belongs to an energy-saving product.

[0003] A traditional electric resistance furnace heating system mainly comprises a heating element, a support pipe, a temperature control system, a heat preservation structure and the like, and the purpose of heating is achieved by radiating and naturally convection of the electric heating element to improve the ambient temperature, the natural convection is caused by the flow of the fluid itself temperature field, and the purpose of heat dissipation is achieved without relying on any external energy, and the driving force is only dependent on the change of the fluid density, the driving force is not large, the temperature uniformity is not high, and the thermal efficiency is also greatly discounted, and the heat at the bottom of the heating element cannot be fully utilized due to the space limitation. SUMMARY

[0004] In view of the above problems, the louvered air guiding device is provided to solve the problem that the heat at the bottom of the heating element cannot be fully utilized due to the space limitation.

[0005] To achieve the above object, the application provides the following technical scheme: a louvered air guiding device, comprising an air guiding box, an inner cavity is arranged in the air guiding box, a rotating shaft is arranged on the inner side of the inner cavity, a fan blade is fixedly arranged on the top of the rotating shaft, a cover plate is arranged on the top of the air guiding box, and an air outlet is arranged on the top of the cover plate and vertically above the fan blade.

[0006] Preferably, the bottom end of the rotating shaft penetrates through the air guiding box and is fixedly connected with a motor, the rotating shaft is movably connected with the air guiding box, and a shaft coupling is arranged on the bottom of the air guiding box and connected with the rotating shaft.

[0007] Preferably, the bottom of the motor is fixedly connected with a support plate, support rods are fixedly arranged on the top of the support plate at equal angles, and the top ends of the support rods are fixedly connected with the bottom of the air guiding box.

[0008] Preferably, the bottom of the cover plate is fixedly connected with a mounting frame, and the mounting frame is sleeved on the outer side of the air guiding box.

[0009] Preferably, the top of the cover plate is fixedly connected with a louver on each side.

[0010] Preferably, the top of the cover plate is provided with a circulating groove on each side, and the two circulating grooves are arranged between the two louvers.

[0011] Compared with the prior art, the application has the following advantages:

[0012] (1), the application, by the cooperation between the motor and the rotating shaft, in turn can make the fan blade rotate, so that when the air flow at the bottom of the heating element enters the inner cavity, the air flow can be discharged upward through the exhaust port, thereby realizing the internal circulation of air, improving the convection effect. Compared with natural convection heat exchange, the forced air convection heat exchange capacity is about several times larger than the natural convection and radiation heat exchange capacity, so under the same conditions, the uniformity of the internal temperature of the furnace body can be rapidly improved, and the effect of reducing energy consumption can be achieved when the electric heating element works;

[0013] (2), the novel is provided with two louvers and two circulating grooves on the top of the cover plate, the structure of the two louvers is designed in the direction of only entering but not going out, and the structure of the two circulating grooves is designed in the direction of only going out but not entering, so that the air flow inside and outside the inner cavity is in a relatively balanced state. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0015] In the drawings:

[0016] Figure 1 It is a structure schematic view of the louver type air guide device of the present application.

[0017] Figure 2 It is an exploded structure schematic view of the air guide box and the cover plate of the present application.

[0018] Figure 3 It is a structure schematic view of the cover plate of the present application.

[0019] Figure 4 It is a structure schematic view of the rotating shaft of the present application.

[0020] In the drawings: 1, air guide box; 2, cover plate; 3, inner cavity; 4, rotating shaft; 5, supporting rod; 6, circulating groove; 7, mounting frame; 8, exhaust port; 9, louver; 10, fan blade; 11, coupling; 12, motor; 13, supporting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Example one, by Figures 1-4The present application comprises a fan box 1, the inside of the fan box 1 is provided with an inner cavity 3, the inner side of the inner cavity 3 is provided with a rotating shaft 4, the top of the rotating shaft 4 is fixedly provided with a fan blade 10, the top of the fan box 1 is provided with a cover plate 2, the top of the cover plate 2 is provided with an air outlet 8 above the fan blade 10.

[0023] In the second embodiment, the bottom end of the rotating shaft 4 penetrates the fan box 1 and is fixedly provided with a motor 12, the rotating shaft 4 is movably connected with the fan box 1, the bottom of the fan box 1 is provided with a shaft coupling 11 connected with the rotating shaft 4, the bottom of the motor 12 is fixedly provided with a supporting plate 13, the top of the supporting plate 13 is fixedly provided with supporting rods 5 at equal angles, the top end of the supporting rods 5 is fixedly connected with the bottom of the fan box 1.

[0024] Firstly, the airflow enters the inner cavity 3 from the two side louvers 9, and at the same time, the motor 12 is started to drive the rotating shaft 4 to rotate, and drive the fan blade 10 to rotate, and drive the airflow in the inner cavity 3 to be discharged upward through the air outlet 8, so as to realize the internal circulation of the air and improve the convection effect.

[0025] In the third embodiment, the bottom of the cover plate 2 is fixedly provided with a mounting frame 7, the mounting frame 7 is sleeved on the outside of the fan box 1, the top of the cover plate 2 is fixedly provided with louvers 9 on both sides, and the top of the cover plate 2 is provided with circulation grooves 6 on both sides.

[0026] The structure of the two louvers 9 is designed in the direction of only entering but not exiting, which is to ensure that the airflow outside the inner cavity 3 can enter according to the direction of the louver 9, prevent the airflow from being dispersed, and at the same time, avoid the overflow of the gas in the inner cavity 3, so as to enhance the forced convection effect of the gas.

[0027] Working principle: in use, firstly, the airflow enters the inner cavity 3 from the two side louvers 9, and at the same time, the motor 12 is started to drive the rotating shaft 4 to rotate, and drive the fan blade 10 to rotate, and drive the airflow in the inner cavity 3 to be discharged upward through the air outlet 8, so as to realize the internal circulation of the air and improve the convection effect, when the motor 12 is not working, the structure of the two louvers 9 is designed in the direction of only entering but not exiting, and the structure of the two circulation grooves 6 is designed in the direction of only exiting but not entering, so as to ensure that the airflow in and outside the inner cavity 3 is in a relative balance state.

Claims

1. A louvered air induction device comprising an air induction box (1), characterised in that: The inside of the air guide box (1) is provided with an inner cavity (3), the inner side of the inner cavity (3) is provided with a rotating shaft (4), the top of the rotating shaft (4) is fixedly provided with a fan blade (10), the top of the air guide box (1) is provided with a cover plate (2), the top of the cover plate (2) is provided with an air outlet (8) located directly above the fan blade (10), the bottom end of the rotating shaft (4) penetrates through the air guide box (1) and is fixedly provided with a motor (12), the rotating shaft (4) is movably connected with the air guide box (1), the bottom of the air guide box (1) is provided with a shaft coupling (11) connected with the rotating shaft (4), the bottom of the motor (12) is fixedly provided with a supporting plate (13), the top of the supporting plate (13) is fixedly provided with supporting rods (5) at equal angles, the top end of the supporting rod (5) is fixedly connected with the bottom of the air guide box (1), the bottom of the cover plate (2) is fixedly provided with a mounting frame (7), the mounting frame (7) is sleeved on the outside of the air guide box (1), the top of the cover plate (2) is fixedly provided with louver windows (9) on both sides, the top of the cover plate (2) is provided with circulating grooves (6) on both sides, the two circulating grooves (6) are located between the two louver windows (9), the cooperation between the motor (12) and the rotating shaft (4) drives the fan blade (10) to rotate, and the airflow at the bottom of the heating element is introduced into the inner cavity (3); the structure of the two louver windows (9) is only in but not out, and the structure of the two circulating grooves (6) is only out but not in.

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