CN2390120Y - Infrared gas burner - Google Patents

Abstract

The utility model relates to an infrared burner for a household combustion apparatus, which is composed of an ejector, a furnace chamber and a burning radiating plate which is foamed ceramics which is made of hard ceramics and has larger porosity, a single fire hole of the foamed ceramics is very little, and hole density is large. A tempering phenomenon can be effectively inhibited by the infrared burner to make a burning surface even. The utility model has the advantages of complete burning, high thermal efficiency, good burning stability, etc. Meanwhile, the infrared burner can be suitable for a plurality of gas sources such as liquefied petroleum gas, petroleum gas, manufactured gas, etc. The utility model is a very ideal infrared radiation burner.

Description

A kind of infrared ray gas burner

The utility model relates to the improvement of fuel gas buring equipment, especially the improvement of domestic gas equipment (as gas kitchen ranges, baking box) burner.

Gas infrared burner is applied to have significant feature performance benefit and power savings advantages in family expenses kitchen range, oven (baking box), heating and industrial oven dry etc.Over past ten years, the infrared ray gas burner is applied in the household gas utensils, because it has high efficiency, energy savings, sufficient combustion, uses not remarkable advantages such as sooting cooker, security performance be good for a long time, has obtained consumers in general's welcome.Nowadays though can solve some problems of burning and thermal efficiency aspect basically, also there is following defective in the infrared gas stove tool that appears on the market:

(1) the infrared gas stove tool and the fuel gas oven that have now appeared on the market adopt garden fire hole or square fire hole ceramic wafer as the burning radiation plate.To liquefied petroleum gas and natural gas, fire hole ceramic wafer single fire hole area in garden is 1.0～1.35mm ², percent opening is not more than 28%, and the single fire hole area of square fire hole ceramic wafer is 0.8～1.3mm ², percent opening 40%-60%.To artificial coal gas, various places source of the gas deviation is very big, and the single fire hole area of garden fire hole and square fire hole ceramic wafer should be less than 0.64mm ², for more suitable single fire hole area≤0.57mm ², can't meet the demands on the production technology, can't ordinary production, and this moment garden fire hole ceramic wafer percent opening less than 24%.A kind of radiant panel of specification and burner only are adapted to a kind of combustion gas (or the artificial coal gas in an area) or only can be adapted to the natural gas of liquefied petroleum gas and a given area.Garden fire hole and square fire hole ceramic wafer (because fire hole and percent opening can not mate simultaneously) can not be applicable to multiple source of the gas simultaneously, more can not satisfy the requirement that the various places composition changes artificial coal gas kitchen range greatly.

(2) for the artificial coal gas kitchen range, because fire hole is difficult to make smallerly, can't be by shortening the bottom of a pan and kitchen range identity distance from the raising thermal efficiency, thus limited the raising of the thermal efficiency.

(3) Chinese cooking custom is that firepower is violent, yet infrared burner radiant panel percent opening in the past is little, and garden fire hole radiant panel is less than 28%, square fire hole radiant panel 40%-60%, when adopting large opening rate (near 60%), can guarantee that the combustion stablized radiant panel life-span is poor.When increasing heat flow, need to strengthen burner.When heat flow was big, the burner volume was excessive, has influenced outward appearance, used also inconvenient.

(4) abroad, metallic fiber is as infrared ray burning radiation plate, has little and the characteristics that porosity is high of single fire hole, but its price (cost) height, and for the conventional ceramic radiant panel tens times have greatly limited its application.

Therefore, how to design, produce the radiant panel and the burner that can be applicable to liquefied petroleum gas, natural gas and various places artificial coal gas simultaneously, and make product (burner) thermal efficiency height, flameholding, burning fully, heat flow is big and the burner volume is little, makes the burner cost low simultaneously, and this is a big technical barrier of domestic gas ware design.And foam ceramic material is through specific design and craft, can produce to meet the little (≤0.5mm in hole ²) the burning radiation plate of this combustion requirements of high porosity (〉=50%, generally be controlled between the 50%-75%), and can stablize, produce easily, cost is low simultaneously.

The purpose of this utility model is, by to the improvement on burning radiation plate structure, material, the production technology, design and employing small fire hole and the high foamed ceramics of porosity, so that burning radiation plate and burner can be applicable to multiple source of the gas simultaneously, and the raising thermal efficiency, flameholding, the burner heat flow is big and volume is little, and makes product cost low.

The utility model is achieved in that under the constant situation of the injector of burner and furnace chamber diameter, by changing specification, material, fire hole size, the porosity (adopting novel manufacturing process) of infrared ray burning radiation plate, adopt little and the foamed ceramics that porosity is high of single fire hole as infrared ray burning radiation plate, adopt specific technology, foamed ceramics radiant panel fire hole and porosity are controlled in the specific scope, and single fire hole area is not more than 0.5mm ², porosity is not less than 50% (generally reaching 50%-75%).Like this, combustion gas and Air mixing gas can not be subjected to the influence of resistance easily by various full of twists and turns apertures, in the burning of foamed ceramics radiant panel upper surface evenly.It can be applicable to multiple sources of the gas such as liquefied petroleum gas, natural gas, each department artificial coal gas simultaneously, and heat flow is big and volume is little.For guaranteeing service life, the foamed ceramics radiant panel must adopt hard ceramic manufacturings such as cordierite, mullite, aluminium titanates, aluminium oxide.Compare with external metallic fiber, adopt the foamed ceramics manufacturing, can reach purpose cheaply.Test shows that it can overcome tempering phenomenon effectively, and calorific intensity is big, thermal efficiency height, sufficient combustion.

Advantage of the present utility model is that this burner and radiant panel can be applicable to multiple different types of source of the gas simultaneously, and combustion stability is good, sufficient combustion, and thermal efficiency height, the burner heat flow is big and volume is little, and the burner cost is low.

Below in conjunction with this description of the drawings, provide embodiment.

Fig. 1 is a profile of the present utility model.

A kind of infrared ray gas burner is made up of injector (1), furnace chamber (2), foamed ceramics radiant panel (3), and the single fire hole area of foamed ceramics radiant panel (3) is 0.25mm ², porosity is 60%, material is the cordierite-base pottery.The foamed ceramics radiant panel overall diameter of 3KW heat flow is not less than φ 130mm.

Claims (2)

1, a kind of infrared ray gas burner is made up of injector (1), furnace chamber (2), burning radiation plate (3), it is characterized in that burning radiation plate (3) for porosity is not less than 50%, and single fire hole/pore area is not more than 0.5mm ²Foamed ceramic panel.

2, burner according to claim 1, the material that it is characterized in that burner combustion radiant panel (3) can be the cordierite-base pottery, or mullite ceramic, or alumina titanate ceramics, or aluminium oxide ceramics.