CN220648246U

CN220648246U - Double-direct-injection burner

Info

Publication number: CN220648246U
Application number: CN202322139889.9U
Authority: CN
Inventors: 李纪飞
Original assignee: Shanghai Gangzhe Industrial Co ltd
Current assignee: Shanghai Gangzhe Industrial Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-22
Anticipated expiration: 2033-08-10

Abstract

The utility model provides a double-direct injection burner, which comprises a first injection pipe and a second injection pipe which are arranged side by side, wherein the bottom ends of the first injection pipe and the second injection pipe are connected with an air inlet pipe; the top end of the first injection pipe is connected with a central fire cover, a plurality of bosses which are arranged in a ring shape are arranged on the top surface of the central fire cover, a first fire hole is formed in each boss, and a second fire hole is formed between two adjacent bosses; the top end of the second injection pipe is connected with an outer ring fire cover, and a plurality of third fire holes are formed in the circumference of the side wall of the outer ring fire cover. The double direct injection burner provided by the utility model has the advantages that the double direct injection mode simultaneously meets the large firepower of the outer ring and the center, so that the combustion is more sufficient, and the backfire phenomenon can be avoided.

Description

Double-direct-injection burner

Technical Field

The utility model relates to the field of stoves, in particular to a double-direct-injection burner.

Background

Currently, common central fire cookers on the market are generally divided into two types: one is that the injector pipeline is a 90-degree vertical pipeline, the central side edge fires or fires upward, the structure of the kitchen range designed in this way is relatively stable, the disadvantage is that the middle firepower of the kitchen range is not big enough, basically depend on the outer ring firepower to heat; the other is that the center and the nozzle are vertically flaming, the center direct flaming has the advantages that the center fire of the kitchen range is increased to enable the kitchen range to heat faster, the center nozzle is easy to be blocked by grease at the bottom of a pot, the middle of the kitchen range is not flamed or tempered, the safety is not very high, and the maintenance proportion of the kitchen range is indirectly increased.

Disclosure of Invention

In order to make up the defects in the prior art, the utility model provides the double direct injection burner, and the double direct injection mode can increase the combustion intensity by increasing the air quantity of the air inlet and the air outflow speed due to the direct injection pipeline, has high firepower meeting the requirements of an outer ring and the center, ensures more complete combustion and can avoid the backfire phenomenon.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the double-direct injection burner comprises a first injection pipe and a second injection pipe which are arranged side by side, wherein the bottom ends of the first injection pipe and the second injection pipe are connected with an air inlet pipe; the top end of the first injection pipe is connected with a central fire cover, a plurality of bosses which are arranged in a ring shape are arranged on the top surface of the central fire cover, a first fire hole is formed in each boss, and a second fire hole is formed between two adjacent bosses; the top end of the second injection pipe is connected with an outer ring fire cover, and a plurality of third fire holes are formed in the circumference of the side wall of the outer ring fire cover.

Furthermore, the air inlet pipe is L-shaped, a nozzle connecting port is arranged at the end part of the horizontal section of the air inlet pipe, and a gas connecting port is arranged at the end part of the vertical section of the air inlet pipe.

Further, fixing lugs are arranged on two sides of the middle of the vertical section of the air inlet pipe, and fixing holes are formed in the fixing lugs.

Further, the first injection pipe and the bottom end of the second injection pipe are both provided with butterfly-shaped positioning sheets.

Further, the diameter of the first fire hole is larger than the diameter of the second fire hole.

Compared with the prior art, the utility model has the following beneficial technical effects:

the utility model adopts the design of double injection pipes, so that the middle fire and the outer ring fire reach the direct injection air inlet mode at the same time, the outflow speed of the fuel gas is increased, the combustion intensity is enhanced, the combustion is more complete, and the combustion temperature is higher. The structure design of the utility model avoids backfire blasting phenomenon of the direct-injection kitchen range, and the first fire holes and the second fire holes with high and low design can guide oil leakage to flow out of the central fire cover, thereby reducing the condition that the bottom of a pan is blocked by oil leakage, and further reducing potential safety hazard and maintenance frequency in the use process of the kitchen range.

Drawings

FIG. 1 is a block diagram of a dual direct injection burner of the present utility model.

Fig. 2 is an exploded view of a dual direct injection burner of the present utility model.

Wherein: 1. a first ejector tube; 2. a second ejector tube; 3. an air inlet pipe; 31. a nozzle connection port; 32. a gas connection port; 33. a fixed ear; 4. a center fire cover; 41. a boss; 42. a first fire hole; 43. a second fire hole; 5. an outer ring fire cover; 51. a third fire hole; 6. butterfly-shaped locating piece.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly practiced by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

Example 1

As shown in fig. 1 and 2, the dual direct injection burner comprises a first injection pipe 1 and a second injection pipe 2 which are arranged side by side, wherein the bottom ends of the first injection pipe 1 and the second injection pipe 2 are both connected with an air inlet pipe 3. The air inlet pipe 3 is L-shaped, a radial nozzle connecting port 31 is arranged at the end part of the horizontal section, and a radial gas connecting port 32 is arranged at the end part of the vertical section. The nozzle connection port 31 is located at the bottom of the first ejector tube 2. The middle part both sides of the vertical section of intake pipe 3 are equipped with fixed ear 33, are equipped with the fixed orifices on the fixed ear 33. It should be noted that, the axial openings of the horizontal section and the vertical section of the air inlet pipe 3 are both used for connecting screw plugs.

Based on the above structure, the gas connection port 32 can be extended into the housing of the kitchen range during installation, and the gas inlet pipe 3 is fixed by the fixing lug 33, so that the gas pipe connected with the gas connection port 32 can be also connected into the housing, the gas pipe is not damaged by external force, and the safety of the gas pipe is ensured.

The top end of the first injection pipe 1 is connected with a central fire cover 4. The top surface of the central fire cover 4 is provided with a plurality of fan-shaped bosses 41 which are arranged in a ring shape, the bosses 41 are provided with first fire holes 42, and a second fire hole 43 is arranged between two adjacent bosses 41. The diameter of the first fire hole 42 is larger than the diameter of the second fire hole 43. The top end of the second injection pipe 2 is connected with an outer ring fire cover 5, and a plurality of third fire holes 51 are formed in the circumference of the side wall of the outer ring fire cover 5. The bottom ends of the first injection pipe 1 and the second injection pipe 2 are respectively provided with a butterfly-shaped positioning sheet 6 for positioning the nozzle and the fan blade.

Although the present utility model has been described in detail with reference to the embodiments, it should be understood that the utility model is not limited to the preferred embodiments, but is capable of modification and equivalents to some of the features described in the foregoing embodiments, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A dual direct injection burner, characterized by: the device comprises a first injection pipe and a second injection pipe which are arranged side by side, wherein the bottom ends of the first injection pipe and the second injection pipe are connected with an air inlet pipe; the top end of the first injection pipe is connected with a central fire cover, a plurality of bosses which are arranged in a ring shape are arranged on the top surface of the central fire cover, a first fire hole is formed in each boss, and a second fire hole is formed between two adjacent bosses; the top end of the second injection pipe is connected with an outer ring fire cover, and a plurality of third fire holes are formed in the circumference of the side wall of the outer ring fire cover.

2. The dual direct injection burner of claim 1, wherein: the air inlet pipe is L-shaped, a nozzle connecting port is arranged at the end part of the horizontal section of the air inlet pipe, and a gas connecting port is arranged at the end part of the vertical section of the air inlet pipe.

3. The dual direct injection burner of claim 2, wherein: the middle part both sides of the vertical section of intake pipe are equipped with the fixed ear, be equipped with the fixed orifices on the fixed ear.

4. A dual direct injection burner according to claim 3, wherein: the first injection pipe and the second injection pipe bottom are both provided with butterfly-shaped locating pieces.

5. The dual direct injection burner of any of claims 1-4, wherein: the diameter of the first fire hole is larger than that of the second fire hole.