CN201688408U

CN201688408U - Negative-pressure low-noise burner

Info

Publication number: CN201688408U
Application number: CN201020155324XU
Authority: CN
Inventors: 王战勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2010-12-29
Anticipated expiration: 2020-04-09

Abstract

The utility model discloses a negative-pressure low-noise burner, which is applicable to frying cookers for Chinese food, large stoves and thermal power application. The negative-pressure low-noise burner comprises a burner casing consisting of an inner casing and an outer casing, a gas tube is arranged in the burner casing, an igniting needle is disposed on one side of the gas tube, and an air inlet tube is arranged on the burner casing. The negative-pressure low-noise burner is characterized in that a noise reduction hood is disposed in the burner casing, covered outside the gas tube and movably arranged on a step of a lower port of the inner casing, and a negative-pressure noise reduction chamber is formed between the noise reduction hood and the inner casing. The negative-pressure low-noise burner can reduce work noises, does not affect burning efficiency, simultaneously can be dredged and anti-blocking, and is convenient to be cleaned.

Description

Negative pressure low noise burner

Technical field

The utility model relates to a kind of burner, especially relates to a kind of blowing-type mixed flow low noise burner, is suitable for Chinese meal and fries kitchen range, large stove, hot merit application burner, can reduce the kitchen noise, improves the operation area environment.

Background technology

All there is defective in its design of existing various kitchen range, and as closed cooking stove, though noise is less when using, it is insufficient to burn; The open type cooking stove, though ratio of combustion is more abundant, combustion noise is very big when being to use; Chinese meal is fried kitchen range then a lot of greasy dirts, foreign material, deposition, obstruction burner port easily, be directed at air mixes bad with burner.

A kind of burner that is used for the blowing-type cooking stove is disclosed in the Chinese patent 200820084683.3 " a kind of gas burner ", this burner can easily separate burner with stove and accessory, and make ratio of combustion more abundant by pressure balance, but its design also exists structural defect, and the noise during use still is difficult to reduce.Noise during general the use surpasses 85 decibels of national criteria for noise all more than 90 decibels.

The utility model content

Technical problem to be solved in the utility model is to overcome deficiency of the prior art and a kind of operating noise that can reduce is provided, and does not influence efficiency of combustion again, can arrange simultaneously to lead to negative pressure low noise burner anti-blocking, that be convenient to clear up.

The technical scheme in the invention for solving the above technical problem is: this negative pressure low noise burner, comprise the burner shell of forming by inner housing and shell body, be provided with Gas Pipe in the burner shell, one side of Gas Pipe is provided with the igniting pin, burner shell is provided with blast pipe, it is characterized in that: be provided with silencer cover in the described burner shell, silencer cover covers on outside the Gas Pipe and is movably arranged on the inner housing lower port step, forms the negative pressure anechoic chamber between silencer cover and the inner housing.

Be provided with the mixed flow cap in the silencer cover described in the utility model, the upper end of mixed flow cap is the plane, and lower edge is rounded down, and the mixed flow cap is placed on the Gas Pipe top by its center shrinkage pool.After the mixed flow cap is set, the air-flow in the combustion chamber is played suppression, and changed the flow direction of air-flow, make that therefore air and combustion gas mixing are more even.

Silencer cover described in the utility model is cylindrical, and its cover body side surface is evenly distributed with bloop, is evenly distributed with mudhole on the cover body flange in the bottom.

Silencer cover is movable, is convenient to the mounting or dismounting cleaning, and it is placed on the inner housing lower port step, and the silencer cover flange in the bottom is provided with several mudholes, and it is anti-blocking to be convenient to blowdown.Form air compartment between inner housing and the shell body, form the combustion chamber in the inner housing, form corresponding space between silencer cover and the inner housing behind the suit and be the negative pressure anechoic chamber, the compressed air of air compartment can be blown into the negative pressure anechoic chamber from the plurality of rows aperture of inner housing jacket wall, and the compressed air of air compartment can blow to the combustion chamber simultaneously, the combustion gas of combustion chamber is when burning, increased rapidly by the actuating pressure of mixed flow cap, suddenly spread in the combustion chamber, and be attracted to negative pressure anechoic chamber secondary by the plurality of rows bloop on the silencer cover and mix, the ratio of the sectional area of bloop is greater than 25 times on the sectional area of the plurality of rows aperture of inner housing jacket wall and the silencer cover.In burner, air mixes below inner housing with combustion gas for the first time, in silencer cover, carry out mixed combustion then, air-flow during burning, nature drains into whole burner hearth with the gaseous mixture of negative pressure anechoic chamber, and when pressing pot, mix for the third time, in whole burner hearth, mix, diffuse into the low-pressure combustion state when making fuel gas buring.The combustion noise of this moment reduces greatly, tests measured level of noise about 78 decibels.

Shell body described in the utility model bottom is rotated and is provided with removable cover, have osculum on the removable cover, the osculum aperture is less, have the bigger through hole in aperture on the shell body in the relevant position that removable cover is set, with removable cover to dextrorotation, make that osculum was unimpeded when osculum and port were overlapping, be used for draining; To left-handed, make port unlimited fully removable cover, be used to discharge the dirt dirt.

Inner housing top movable described in the utility model is set with combustion-supporting cover, and combustion-supporting cover is for adopting bowl-type, and its advantage is to change airflow direction, increase incorporation time, the raising thermal efficiency 35%.

The utility model compared with prior art has the following advantages: 1, be provided with silencer cover, form a negative pressure noise reduction district, therefore can effectively reduce noise.2, be provided with the mixed flow cap, the upper end of mixed flow cap is the plane, and lower edge has R shape fillet, and the mixed flow cap is placed on the Gas Pipe upper end by its center shrinkage pool, makes wind and combustion gas to mix at short notice by the mixed flow cap, improves the thermal efficiency 35%.3, be provided with removable cover, be convenient to the blowdown draining, keep the unimpeded of burner, thereby guarantee mixing of air and burner.4, be provided with movable combustion-supporting cover, further improve efficiency of combustion.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model silencer cover structural representation.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is the movable cover structure schematic diagram.

The specific embodiment

Referring to Fig. 1～Fig. 4, the utility model comprises burner shell 1, burner shell 1 is made up of inner housing 11 and shell body 12, be provided with Gas Pipe 2 in the burner shell 1, one side of Gas Pipe 2 is provided with igniting pin 3, burner shell 1 is provided with blast pipe 4, be provided with silencer cover 5 in the described burner shell 1, silencer cover 5 is cylindrical, its cover body side surface is evenly distributed with plurality of rows bloop 5-1, cover body flange in the bottom 5-2 goes up annular and is evenly distributed with a plurality of mudhole 5-3, and silencer cover 5 covers on outside the Gas Pipe 2 and by flange 5-2 and is placed on the inner housing 11 lower port steps 13.Form air compartment A between inner housing 11 and the shell body 12, form combustion chamber B in the inner housing 11, form the negative pressure C of anechoic chamber between silencer cover 5 and the inner housing 11.Be provided with mixed flow cap 6 in the silencer cover 5, the upper end 6-1 of mixed flow cap 6 is the plane, the lower edge 6-2 that is rounded down, and mixed flow cap 6 is placed on Gas Pipe 2 upper ends by its center shrinkage pool 6-3.

Shell body 12 bottoms are rotated and are provided with removable cover 7, have osculum 7-1 on the removable cover 7, the aperture of osculum 7-1 is less, have the bigger through hole in aperture 14 on the shell body 12 in the relevant position that removable cover 7 is set, with removable cover 7 to dextrorotation, when making osculum 7-1 and port 14 overlapping, osculum 7-1 is unimpeded, is used for draining; To left-handed, make port 14 unlimited fully removable cover 7, be used to discharge the dirt dirt.Inner housing 11 top movable are set with combustion-supporting cover 8, and combustion-supporting cover 8 is a bowl-type, its shape and inner housing 11 tops coupling.

Above embodiment has made comparatively detailed description to the utility model, but these descriptions are not to be to restriction of the present utility model, and promptly the utility model is not limited to the concrete structure and the description of the foregoing description.Protection domain of the present utility model comprises those conspicuous to those skilled in the art conversion or substitutes and remodeling.

Claims

1. negative pressure low noise burner, comprise the burner shell of forming by inner housing and shell body, be provided with Gas Pipe in the burner shell, one side of Gas Pipe is provided with the igniting pin, burner shell is provided with blast pipe, it is characterized in that: be provided with silencer cover in the described burner shell, silencer cover covers on outside the Gas Pipe and is movably arranged on the inner housing lower port step, forms the negative pressure anechoic chamber between silencer cover and the inner housing.

2. negative pressure low noise burner according to claim 1 is characterized in that: be provided with the mixed flow cap in the described silencer cover, the upper end of mixed flow cap is the plane, and lower edge is rounded down, and the mixed flow cap is placed on the Gas Pipe top by its center shrinkage pool.

3. negative pressure low noise burner according to claim 1 and 2 is characterized in that: described silencer cover is cylindrical, and its cover body side surface is evenly distributed with bloop, is evenly distributed with mudhole on the cover body flange in the bottom.

4. negative pressure low noise burner according to claim 2 is characterized in that: described shell body bottom is rotated and is provided with removable cover, has osculum on the removable cover.

5. negative pressure low noise burner according to claim 4 is characterized in that: described inner housing top movable is set with combustion-supporting cover, and combustion-supporting cover is a bowl-type.