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Tornado-type suction nozzle and range hood thereof

A tornado and impeller technology, applied in the direction of oil fume removal, heating mode, household heating, etc., can solve the problem of large fan noise, and achieve the effect of high negative pressure value, small negative pressure loss, and long distance.

Pending Publication Date: 2020-02-14
杨富云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The second technical problem to be solved by the present invention is to provide a range hood with low noise in the kitchen for the shortcomings of the prior art that the fan in the kitchen is noisy.

Method used

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  • Tornado-type suction nozzle and range hood thereof
  • Tornado-type suction nozzle and range hood thereof
  • Tornado-type suction nozzle and range hood thereof

Examples

Experimental program
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Embodiment Construction

[0064] Figure 1~6 Among them, the air inlet 8 of the casing 4 is sealed and fixedly connected with the center of the impeller 9 with the impeller lower plate 10, and can be connected with a sealing ring and a screw, or both are integrated; the impeller upper plate 12 and the impeller cover of the impeller flap 16 17 is sealed and fixed in one body with the center of circle, can be connected with sealing ring and screw, or both are in one body. The interface 5 on the upper end of the shell 4 is connected in series with the reducer pipe 38, and then connected to the oil fume exhaust pipe 3 or the fan 2. A check valve 29 is provided in the oil fume exhaust channel to prevent the oil fume from flowing backward. The interface 5 is a round pipe or The upper opening of the conical cylinder 6, wherein the interface 5 at the upper end of the conical cylinder 6 is larger in diameter than the air inlet 8 at the lower end, and the lower opening of the cylinder or the conical cylinder 6 i...

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Abstract

The invention relates to a tornado-type suction nozzle and a range hood thereof. The tornado-type suction nozzle and the range hood thereof are characterized in that an air inlet (8) of a shell (4) isconcentrically connected with an impeller lower disk (10); an impeller upper disk (12)and an impeller tongue plate (16) are concentrically fixed; a connecting port (5) of the shell (4) is connected with an oil exhaust fume pipe (3) or a fan (2); the impeller upper disk (12) is larger than the impeller lower disk (10), and the two ends of a unidirectional blade (11) are evenly fixed to the impeller upper disk (12) and the impeller lower disk (10) separately; the impeller upper disk (12) is provided with a tapered shell tongue (18); the cross section of the shell tongue (18) and a gap (20) of the unidirectional blade (11) gradually decreases from top to bottom; and an impeller (9) is a non-rotating cyclone guide wheel, due to the suction by the fan (2), a negative pressure area tornado (23)which is in a constricted funnel shape and perpendicular to the horizontal surface is formed under the tornado-type nozzle (1), and extends to the inner bottom of a pot (24) and sucks oil fume away.The range hood has a long suction distance, large suction power, concentrated negative pressure, simple structure and low noise.

Description

technical field [0001] The invention relates to the field of cooking range hood components and the range hood thereof, in particular to a tornado type suction nozzle and the range hood thereof. Background technique [0002] In order to increase the distance of the range hood and improve the suction force, people have developed a tornado type range hood, such as: [0003] Chinese Patent No. ZL201610586966.7, the title of the invention is "A Fan Structure and Range Hood Capable of Forming Artificial Tornado", which includes a motor, the output shaft of which is connected to the first fan blade; it is characterized in that: the first fan The outer side of the blade is coaxially driven and connected with a second fan blade, and the rotation directions of the first fan blade and the second fan blade are opposite; the first fan blade is accommodated in the first sleeve, or the first fan blade A blade is arranged on the port of the first sleeve; the first sleeve is covered with a ...

Claims

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Application Information

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IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 杨富云
Owner 杨富云
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