A dual-engine supercharged mixed gas injection system for household gas stoves

Abstract

The present invention discloses a dual-engine supercharged mixed gas injection system for a household gas stove, comprising a coaxially arranged inner tube and outer tube, one end of the outer tube and the inner tube are respectively provided with a trumpet-shaped outer contraction tube and an inner contraction tube, a gap is provided between the outer tube and the inner tube to form an air storage cavity, the side walls of the outer tube and the inner tube are respectively provided with an air storage cavity air inlet hole and an air replenishment hole, and a gas nozzle is provided in the central axial direction of the outer contraction tube. The present invention has a simple and reasonable structure, adopts a new mixed gas working mode, improves the mixed gas injection force, makes the air required for combustion more sufficient, and improves the combustion condition.

Description

Technical Field

[0001] The invention relates to the field of domestic gas stoves, in particular to a dual-engine pressurized mixed gas injection system for domestic gas stoves. Background Art

[0002] In the field of household gas stoves, the traditional gas injection structure often fails to achieve the combustion conditions we need, resulting in problems such as low heat load and thermal efficiency, and high emissions. Therefore, it is necessary to make technical improvements to the traditional gas injection device to achieve the effects of high power, high efficiency and low emissions. Summary of the invention

[0003] The present invention provides a dual-engine pressurized mixed gas injection system for a household gas stove, which has a simple and reasonable structure, adopts a new mixed gas injection working mode, improves the mixed gas injection force, makes the air required for combustion more sufficient, and improves the combustion condition.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a household gas stove dual-engine supercharged mixed air injection system, comprising a coaxially arranged inner tube and outer tube, one end of the outer tube and the inner tube are respectively provided with a trumpet-shaped outer shrink tube and an inner shrink tube, a gap is provided between the outer tube and the inner tube to form an air storage cavity, the side walls of the outer tube and the inner tube are respectively provided with an air storage cavity air inlet hole and an air replenishment hole, and a gas nozzle is provided in the central axial direction of the outer shrink tube.

[0005] Preferably, the air storage chamber air inlet hole and the air replenishment hole are respectively arranged near the outer shrink tube and the inner shrink tube.

[0006] Preferably, the air storage chamber air inlet holes and air replenishment holes are arranged in a plurality around the circumference.

[0007] Preferably, the outer tube (1) is a single one or two or more are arranged side by side.

[0008] Preferably, a mounting frame is centrally disposed at the end of the outer shrink tube, and the gas nozzle is installed at the center of the mounting frame.

[0009] Preferably, the inner tube and the outer tube are both conical, and the small-diameter ends of the inner tube and the outer tube are respectively connected to the small-diameter ends of the outer shrinkable tube and the inner shrinkable tube.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The structure is simple and reasonable, and an air storage chamber is provided. Air forms a mixed gas with the fuel gas through an outer contraction tube. Part of the mixed gas enters the inner contraction tube, and part of the air enters the air storage chamber to generate pressure. Under the action of the air pressure in the storage chamber and the injection inertia of the inner injection tube, the air enters the inner injection tube through the air replenishment hole, so that the injection flow rate of the inner injection tube is accelerated to form a circulating gravity, thereby achieving a new mixed gas injection working mode, enhancing the mixed gas injection force, making the air required for combustion more sufficient, and thus improving the combustion condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 It is a front view half-section structure diagram of the present invention. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] like Figure 1-2 The present invention provides a dual-engine supercharged mixed gas injection system for a household gas stove, comprising an inner tube 2 and an outer tube 1 arranged coaxially, wherein one end of the outer tube 1 and the inner tube 2 are respectively provided with a trumpet-shaped outer shrink tube 4 and an inner shrink tube 7, a gap is provided between the outer tube 1 and the inner tube 2 to form an air storage cavity 5, an air storage cavity air inlet hole 8 and an air replenishment hole 6 are respectively provided on the side walls of the outer tube 1 and the inner tube 2, and a gas nozzle 3 is axially provided at the center of the outer shrink tube 4.

[0016] The working principle of the scheme described in the present invention is as follows: during the combustion process, a jet is generated under the injection action of the gas nozzle 3 to form an induced force on the surrounding air, which is compressed through the outer contraction tube 4 to accelerate the flow rate of the air entering the tube. Part of the air directly enters the inner contraction tube 7, and part of the air enters the air storage chamber 5 under the inertia of the jet to generate pressure. The air passing through the outer contraction tube 4 and the gas injected by the nozzle are mixed and enter the inner contraction tube 7 to be compressed again by the inner contraction tube 7. At the same time, the original flow rate is enhanced and then mixed into the inner tube 2. After multiple times of enhanced flow rate, the induced force of the mixed gas is greatly improved. During the injection process of the injection tube, the mixed gas draws the air in the air storage chamber 5 into the inner tube from the air replenishment hole 6 to replenish the air required for combustion.

[0017] The air storage chamber air inlet hole 8 and the air replenishment hole 6 are respectively arranged near the outer shrink tube 4 and the inner shrink tube 7, which is conducive to the replenishment of air.

[0018] As an embodiment, the air storage chamber air inlet hole (8) and the air replenishment hole (6) are arranged in a plurality around the circumference, which can improve the efficiency of air entering and exiting the air storage chamber 5.

[0019] The outer tubes 1 are arranged in two or more pairs in parallel and can be used simultaneously or individually.

[0020] In order to facilitate the installation of the gas nozzle 3 , a mounting frame 9 is centrally disposed at the end of the outer shrink tube 4 , and the gas nozzle 3 is installed at the center of the mounting frame 9 .

[0021] The inner tube 2 and the outer tube 1 are both conical in shape, and the small-diameter ends of the inner tube 2 and the outer tube 1 are connected to the small-diameter ends of the outer shrinkable tube 4 and the inner shrinkable tube 7 respectively.

[0022] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dual-engine supercharged mixed gas injection system for a household gas stove, comprising an inner tube (2) and an outer tube (1) arranged coaxially, characterized in that: One end of the outer tube (1) and the inner tube (2) are respectively provided with a trumpet-shaped outer shrink tube (4) and an inner shrink tube (7); a gap is provided between the outer tube (1) and the inner tube (2) to form an air storage chamber (5); the side walls of the outer tube (1) and the inner tube (2) are respectively provided with an air storage chamber air inlet hole (8) and an air replenishment hole (6); a gas nozzle (3) is axially provided at the center of the outer shrink tube (4); The air storage chamber air inlet hole (8) and the air replenishment hole (6) are respectively arranged near the outer shrink tube (4) and the inner shrink tube (7); The air storage chamber air inlet holes (8) and air replenishment holes (6) are arranged in a plurality around the circumference; a mounting frame (9) is centrally disposed at the end of the outer shrink tube (4), and the gas nozzle (3) is mounted at the center of the mounting frame (9).

2. The household gas stove dual-engine supercharged mixed gas injection system according to claim 1, characterized in that: The outer tube (1) is a single one or two or more are arranged side by side.

3. The household gas stove dual-engine pressurized mixed gas injection system according to claim 1, characterized in that: The inner tube (2) and the outer tube (1) are both conical in shape, and the small-diameter ends of the inner tube (2) and the outer tube (1) are respectively connected to the small-diameter ends of the outer shrinkable tube (4) and the inner shrinkable tube (7).

Images