CN2869599Y

CN2869599Y - Grouped internal-flame combustor

Info

Publication number: CN2869599Y
Application number: CN 200520144679
Authority: CN
Inventors: 明协华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-19
Filing date: 2005-12-19
Publication date: 2007-02-14
Anticipated expiration: 2015-12-19

Abstract

The utility model provides a distributing inner flame burner containing a burning head, a central fire cover and an outer loop fire cover. In the burning head is formed with a centering gas passage and a lop gas passage, the central fire cover covering on the centering gas passage forms a central burning chamber, the outer loop fire cover covering on the outer loop fire cover forms an outer loop burning chamber, the top side and outside of the outer loop fire cover are sealed faces, in the inner side of which is spaced and is formed with at least two fire hole component. The fire hole of the outer loop fire cover of the burner is located in the inner side of the outer loop fire cover. During burning, the flame injects out form the inner side of the outer loop fire cover and concentrates on the bottom of the heating container, which improves the gas heating efficiency. Between the two fires holes is formed with a certain gap, the air gets ingression from the gap, sufficiently supplying the two times air required by the gas burning and the burning being more sufficient.

Description

Grouping inner flame burner

[technical field]

The utility model relates to a kind of gas-cooker, refers in particular to a kind of burner for gas stove.

[background technology]

Common burner for gas stove includes parts such as burner, middle internal heat lid and external ring fire cover, middle internal heat lid and external ring fire cover are installed in respectively on the center blast tube and outer shroud blast tube of burner, usually, the fire hole of external ring fire cover is arranged on the end face of this external ring fire cover, combustion gas causes in the outer shroud burning cavity that is made of outer shroud blast tube and external ring fire cover through air inlet pipe, and is burnt through igniting by the fire hole ejection of external ring fire cover.The gas burner of the type exists following defective: the fire hole of external ring fire cover is arranged on its end face, in the process of burning, flame is outwards dispersed easily, heats and can not concentrate on the bottom that is heated container, thereby reduce the thermal efficiency of combustion gas, cause the waste of heat energy.

[summary of the invention]

The purpose of this utility model is to overcome the existing defective of above-mentioned burner for gas stove, and a kind of thermal efficiency height, the sufficient grouping inner flame burner of fuel gas buring are provided.

The purpose of this utility model is achieved in that this grouping inner flame burner includes burner, middle internal heat lid and external ring fire cover, burner is formed with center blast tube and outer shroud blast tube, middle internal heat is covered on the center blast tube and forms the central burner cavity, external ring fire cover is covered on the outer shroud blast tube and forms outer shroud burning cavity, its improvement is: the end face of this external ring fire cover and the outside are sealing surface, and its clear width is formed with at least two fire hole groups.

In the above-mentioned grouping inner flame burner, the interval between the external ring fire cover fire hole group right central angle be 5 °-30 °.

In the above-mentioned grouping inner flame burner, the fire hole of fire hole group is provided with in the mode of whirlpool shape distribution.

In the above-mentioned grouping inner flame burner, the end face outer rim of external ring fire cover is provided with the end face fire hole, and the interval location of end face fire hole and fire hole group is corresponding, is provided with flash hole between the two or passes fiery groove.

In the above-mentioned grouping inner flame burner, the outer upper of external ring fire cover is provided with the fiery groove in the outside, and the interval location of outside fire groove and fire hole group is corresponding, is provided with between the two and passes fiery groove.

The beneficial effects of the utility model are: the fire hole of the external ring fire cover of burner is arranged on the inboard of external ring fire cover, and during burning, flame can concentrate on the bottom that is heated container and heat from the inboard ejection of external ring fire cover, thereby improves the thermal efficiency of combustion gas; The fire hole grouping of external ring fire cover is provided with, and has certain interval between two fire hole groups, and in the process of burning, air can enter from the interval, fully replenishes the required Means of Secondary Air Supplement of fuel gas buring, makes burning more abundant.

[description of drawings]

Below in conjunction with drawings and Examples the utility model is described further.

Fig. 1 is the structural representation of the utility model grouping inner flame burner.

Fig. 2 is that the master of the external ring fire cover of the utility model grouping inner flame burner looks schematic diagram.

Fig. 3 is the schematic rear view of the external ring fire cover of the utility model grouping inner flame burner.

Fig. 4 is the A-A cutaway view of Fig. 2.

Fig. 5 is that the master of external ring fire cover of another embodiment of the utility model grouping inner flame burner looks schematic diagram.

Fig. 6 is the A-A cutaway view of Fig. 5.

[specific embodiment]

Referring to figs. 1 to shown in Figure 3, the utility model grouping inner flame burner includes burner 10, middle internal heat lid 20 and external ring fire cover 30, be formed with center blast tube 100 and outer shroud blast tube 110 on the burner 10, in internal heat lid 20 cover on center blast tube 100 and form the central burner cavity of burner, external ring fire cover 30 covers on outer shroud blast tube 110 and forms the outer shroud burning cavity of burner.The medial surface of external ring fire cover 30 is formed with at least two fire hole groups 300 at interval, and its lateral surface and end face are set to sealing surface, and suitable is, the interval 302 between two fire hole groups 300 right central angle be 5 °-30 °.The fire hole of this external ring fire cover 30 side that sets within it, during burning, flame can concentrate on the bottom that is heated container and heat from the inboard ejection of external ring fire cover 30, thereby improves the thermal efficiency of combustion gas, and the grouping of the fire hole of external ring fire cover 30 is provided with, have certain interval between two fire hole groups 30, in the process of burning, air can be from 302 entering at interval, fully replenish the required Means of Secondary Air Supplement of fuel gas buring, make burning more abundant.Evenly be arranged at the inboard of external ring fire cover thick and fast as fire hole, during fuel gas buring, the flame that external ring fire cover sprayed forms fiery pool easily, makes air be difficult for entering, and sufficient Means of Secondary Air Supplement can not be provided.

In conjunction with shown in Figure 4, the fire hole of fire hole group 300 is arranged at external ring fire cover 30 in the mode that the whirlpool shape distributes, and like this, the combustion gas that sprays from fire hole group 300 forms helical form flame through burning, thereby improves the thermal efficiency of fuel gas buring.

The end face outer rim of this external ring fire cover 30 is provided with end face fire hole 310, end face fire hole 310 is corresponding with 302 positions, interval of fire hole group 300, be provided with flash hole 320 between the two, flash hole 320 is used for the flame of external ring fire cover 30 inboards is caused end face fire hole 310, so that the fuel gas buring of this end face fire hole 310 ejections certainly.Adopt said structure, external ring fire cover 30 can produce flame in inside and outside both sides simultaneously, and strengthens the firepower of gas-cooker.Really, this flash hole 320 also can be set to pass fiery groove, and its role is constant.

As shown in Figure 5 and Figure 6, schematic appearance and cutaway view thereof for the external ring fire cover of another embodiment of the utility model, the medial surface of this external ring fire cover 30 is formed with at least two fire hole groups 300 at interval, its outer upper is provided with the fiery groove 330 in the outside, the fiery groove 330 in the outside is corresponding with 302 positions, interval of fire hole group 300, be provided with between the two and pass fiery groove 340, passing fiery groove 340 is used for the flame of external ring fire cover 30 inboards is caused the fiery groove 330 in the outside, combustion gas with burning fiery groove 330 ejections from this outside, because the fiery groove 330 in this outside is arranged on the outside of external ring fire cover 30, it is not easy to be stopped up by dirt.Other aspects of present embodiment are identical with a last embodiment.

Claims

1. grouping inner flame burner, it includes burner, middle internal heat lid and external ring fire cover, described burner is formed with center blast tube and outer shroud blast tube, internal heat is covered on described center blast tube in described, described external ring fire cover is covered on described outer shroud blast tube, it is characterized in that: the end face of described external ring fire cover and the outside are sealing surface, and its clear width is formed with at least two fire hole groups.

2. grouping inner flame burner as claimed in claim 1 is characterized in that: the interval between the fire hole group of described external ring fire cover right central angle be 5 °-30 °.

3. grouping inner flame burner as claimed in claim 1 or 2 is characterized in that: the end face outer rim of described external ring fire cover is provided with the end face fire hole, and the interval location of described end face fire hole and fire hole group is corresponding, is provided with flash hole between the two or passes fiery groove.

4. grouping inner flame burner as claimed in claim 1 or 2 is characterized in that: the outer upper of described external ring fire cover is provided with the fiery groove in the outside, and the interval location of described outside fire groove and fire hole group is corresponding, is provided with between the two and passes fiery groove.

5. as right 1 or 2 described grouping inner flame burners, it is characterized in that: the fire hole of described fire hole group is provided with in the mode that the whirlpool shape distributes.

6. grouping inner flame burner as claimed in claim 3 is characterized in that: the fire hole of described fire hole group is provided with in the mode that the whirlpool shape distributes.

7. grouping inner flame burner as claimed in claim 4 is characterized in that: the fire hole of described fire hole group is provided with in the mode that the whirlpool shape distributes.