CN206846823U - Sandwich-type aids in eddy flow energy-saving hood for gas stove - Google Patents

Abstract

The utility model discloses a kind of sandwich-type to aid in eddy flow energy-saving hood for gas stove, is made up of outer cover and inner cover, the outer cover is hollow cylinder, its external diameter is equal with inner cover outer most edge diameter, indentation is opened up at the top of outer cover, interior cage is covered outside, forms some fresh air inlets；Inner cover is curved-surface structure of the up big and down small section for circle, and along the circumferential direction uniform some bossings form support feets at its top, and the part beyond support feet contacts with pan forms exhanst gas outlet；The equidistant uniform some swirl vanes in the inner cover circumferential direction inside direction.

Description

Sandwich type auxiliary swirl gas energy saving cover

technical field

The utility model belongs to the field of energy-saving technology and equipment, and relates to an auxiliary energy-saving cover for a gas cooker.

Background technique

Most of the existing kitchen gas stoves use open non-premixed flames. While the flames are heating the pots and stoves, they also radiate precious heat energy into the atmosphere at a relatively high temperature, so the thermal efficiency of the gas stoves is very low (generally less than 30%) ), which also makes the operating environment worse. There are also some patented technologies that have improved conventional cookers, but there are still the following problems: 1) The structure of the improved method adopted is rather complicated, which is not conducive to manufacturing and affects popularization and use. 2) The energy-saving effect is average, far from the ideal level. 3) The manufacturing cost is high, which is not conducive to popularization. In order to solve the above problems, the utility model proposes a novel sandwich-type auxiliary swirl gas energy-saving cover.

Utility model content

The purpose of this utility model is to provide a sandwich type auxiliary swirl gas energy-saving cover, which can recycle and utilize the waste heat of flue gas as much as possible with a simpler structure and lower cost, and strengthen the fuel consumption through rotary torch combustion. The mixing with air greatly improves the combustion efficiency of the gas range, thereby improving the gas utilization rate and improving the operating environment of the kitchen, thus solving the problems existing in the prior art.

The technical scheme adopted in the utility model is:

A sandwich type auxiliary swirling gas energy-saving cover, which is composed of an outer cover and an inner cover. The outer cover is a hollow cylinder whose outer diameter is equal to the diameter of the outermost edge of the inner cover. On the outer cover, a number of air inlet holes are formed; the inner cover is a curved surface structure with a large upper part and a smaller lower part, and a number of raised parts are evenly distributed along the circumferential direction on the top to form support legs, which form the part other than the contact with the pot. Smoke outlet.

Further, a plurality of swirl blades are evenly distributed along the circumferential direction inside the inner cover.

Further, there are 3-10 swirl blades arranged.

The beneficial effects of the utility model are:

The utility model adopts the top air intake mode (referring to air), the cold air enters the interlayer of the inner and outer covers from the air inlet hole at the top of the energy-saving cover and flows from top to bottom, and is heated by the high-temperature inner cover at the same time to reduce the air temperature. The ignition heat of the gas mixture is conducive to the ignition and combustion of new fuel; the heated air combines with the gas at the bottom of the cover and burns, and the smoke produced rises to the entrance of the inner cover and is guided by the swirl vane to generate rotation, thereby strengthening the connection between the gas and the gas. The mixing and turbulence of the air strengthens the combustion process, makes the combustion rapid and complete, and greatly improves the combustion efficiency of the stove.

Description of drawings

Fig. 1 is a longitudinal sectional view of a sandwich type auxiliary swirl gas energy-saving cover;

Fig. 2 is a top view of the interlayer auxiliary swirl gas energy-saving hood.

In the figure, 1. Outer cover, 1.1. Air inlet hole, 2. Inner cover, 2.1. Supporting feet, 2.2. Swirling blades, 3. Annular air channel.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The sandwich type auxiliary swirl gas energy-saving cover of the utility model is composed of an outer cover 1 and an inner cover 2. The outer cover 1 is a hollow cylinder with a certain thickness, and its outer diameter is equal to that of the outermost edge of the inner cover. A certain number of holes are set on the top of the outer cover. Zigzag notch 1.1, during use, inner cover 2 is framed on the outer cover 1, can form some square holes, and these square holes are air inlet holes. The inner cover 2 is a curved surface structure with a large upper part and a smaller lower part. The top part is evenly distributed along the circumferential direction to form support legs 2.1. Generally, 4-12 legs can be set to support the pot. The part other than the contact between the feet and the pot forms a slit, and the slit is the flue gas outlet. A number of swirl vanes 2.2 are evenly distributed along the circumferential direction inside the inner cover, generally 3-10 pieces can be arranged.

After the air enters the annular air channel 3 in the gap between the inner and outer covers through the air inlet hole, it flows from top to bottom and is heated by the high-temperature inner cover 2 at the same time to become hot air with a certain temperature, which will reduce the ignition heat of the air-gas mixture , which is conducive to ignition and combustion; the heated air is combusted with the gas at the bottom of the inner cover and burns, and the smoke generated rises to the inlet of the inner cover and then is guided by the swirl blade 2.2 to generate rotation, thereby strengthening the mixing and disturbance of gas and air , thereby strengthening the combustion process, making the combustion rapid and complete, and greatly improving the combustion efficiency of the stove. After heat exchange with the pan and through the surface of the inner cover and cold air, the temperature of the flue gas is reduced, and then it is discharged into the environment through the gap created by the non-contact part of the top of the pan and the inner cover.

Claims (3)

1. A sandwich type auxiliary swirl gas energy-saving cover, which is composed of an outer cover (1) and an inner cover (2), characterized in that: the outer cover (1) is a hollow cylinder, and its outer diameter is the same as the outermost edge of the inner cover The diameters are equal, and a zigzag notch (1.1) is set on the top of the outer cover, and the inner cover (2) is supported on the outer cover (1) to form several air inlet holes; the inner cover (2) is a curved surface with a large upper part and a smaller lower part. The top of the structure has a plurality of convex parts evenly distributed along the circumferential direction to form support feet (2.1), and the part of the support feet (2.1) other than the contact with the pot forms a smoke outlet. 2. The sandwich-type auxiliary swirl gas energy-saving cover according to claim 1, characterized in that: inside the inner cover, several swirl blades (2.2) are equidistantly and uniformly distributed along the circumferential direction. 3. The sandwich-type auxiliary swirl gas energy-saving cover according to claim 2, characterized in that: 3-10 swirl vanes (2.2) are arranged.