CN2235565Y - Pressure-increasing energy-saving gaseous fuel burner - Google Patents

Abstract

The utility model relates to a pressure-increasing energy-saving gaseous fuel burner, comprising a thin casing and a venturi type injector, and the utility model is used for raising static pressure inside a furnace casing and the ability of controlling small fire and satisfying the people's drinking requirement in daily life. Two mixing and preheating plates with hole groups staggered with each other are arranged in the furnace casing and are used for replenishing and raising the mixing and the preheating effects and regulating the function of the static pressure inside the furnace casing, and a gaseous fuel burning face is pushed out of a ceramic plate to obtain higher burning temperature and radiation intensity so that the utility model achieves the energy-saving goal. The upper surface of the pressure-increasing energy-saving gaseous fuel burner is the qualified ceramic plate corresponding to gaseous fuel. The burner can be hung on the outer casing of a furnace, and the bottom of the furnace casing is drilled and tapped so that the burner can also be fixed on the cross beam of the stainless steel casing of an electronic igniter.

Description

The boosting energy-saving gas burner

A kind ofly cooking the drink thing stove and accessory of fuel with combustible gas (coal gas, liquefied petroleum gas), is a kind of comparatively desirable boosting energy-saving burner for family and small-sized restaurant.

The gas furnace current, that general family and a slap-bang shop generally use has two kinds of air suspended type and flameless.In use, though air suspended type flame control range is big, because combustion gas and air mixing are inhomogeneous, it is insufficient to burn, and flame temperature is not high, and the thermal efficiency is low, and pot, spoonful bottom also has the carbon distribution phenomenon.Flameless: it is comparatively abundant to burn, and radiation intensity is big, thermal efficiency height; But the furnace shell volume is big, controls little fiery ability, can not satisfy the needs of the daily drink of people.In addition, introduce in " coal gas infrared radiator " book " can know the burning of seeing the porous ceramic plate radiator from analysis of combustion; be not real outer surface at porous ceramic plate, but in the flue of distance porous ceramic plate outer surface certain distance, carry out.Under the usual conditions, burning is generally carried out at the about 2 millimeters flue of distance porous ceramic plate outer surface, and maximum combustion temperature can reach 1300-1400 ℃ herein." in book, introduce, common infrared ceramic plate burner structure characteristics, the combustion front that has determined maximum combustion temperature is to be contained in the ceramic wafer; Must influence the ignition temperature and the radiation intensity of outer surface, to making full use of fuel gases calorific value, fuel savings is unfavorable.

In order to make full combustion of fuel, improve the thermal efficiency of stove and accessory, fuel savings improves the ability that the flameless stove and accessory is controlled little fire, satisfies the needs of the daily drink of people, and the utility model has provided a kind of boosting energy-saving gas burner.

In order to reach this purpose, " burning of seeing any coal gas from essence substantially all comprises following three phases according to institution of higher education's textbook " fuel and burning "; (1) coal gas and Air mixing.(2) heating of mixed fuel gas and catching fire.(3) finish the combustion chemistry reaction "." coal gas infrared radiator " book " in the porous ceramic plate radiator, pass to outer surface for burning can be tried one's best, want the good ejection system of design performance on the one hand, coal gas and air mixture are exported at injection enough static pressure; Use the source of the gas of elevated pressures on the other hand as far as possible, effect is preferably so also arranged, and make radiation that stability preferably be arranged ".And " position of combustion front; be decided by the heat conductivility of porous ceramic plate; the size of flue size, length, number and arrangement mode, the size of the composition of source of the gas, calorific value, radiator primary air ratio, and the coal gas primary air mixes degree and the static pressure that has ".According to these theoretical point views, structurally select on the basis of the qualified ceramic wafer that adapts with combustion gas, in order to improve static pressure in the furnace shell, at first adopt the Venturi type injector, the both sides end face has two garden arc notch about the import contraction section, reduces and advances air drag assurance primary air amount and good injection effect.Reduce the furnace shell height then, take garden post thin type furnace shell, under the constant situation of injector outlet static pressure, the furnace shell volume dwindles, the inevitable supercharging of static pressure in the furnace shell.In order to replenish and improve the mixing and the pre-heat effect of furnace shell, and to make the static pressure that increases in the furnace shell be to satisfy the best static pressure of smooth combustion; In furnace shell, be provided with two mixing preheating tables that have the Kong Qun that staggers mutually; Adjust two with test method and mix the preheating table distance, adjust the static pressure in the furnace shell, outside ceramic wafer, pass, obtain the highest ignition temperature and radiation intensity, improve the combustion gas utilization rate to guarantee fuel gas buring.

Secondly, the diffuser of furnace shell and injector (be by furnace shell bottom surface and muscle with under mix preheating table and combine), mixer, import contraction section be a metal shell; Therefore, integral body is heated in burner operation, and the process of injector so combustion gas and air are flowed through promptly is the process of mixing, and is again the process of preheating; Equally mix preheating table and furnace shell bottom surface and form when having two cavitys of temperature flowing through two, further mix again and preheating; The radiation waste heat of furnace shell is become effective energy that mist physics heat is raise, improve flame temperature, the oxidizing hydrocarbon reaction is quickened; Fully burn for combustion gas and to lay good basis.In addition, the furnace shell static pressure raises, and the combustion front of maximum temperature is released the ceramic wafer outer surface, obtains the highest ignition temperature and radiation intensity, thereby reaches the purpose of saving combustion gas.Because the furnace shell volume dwindles, when supplying with a small amount of combustion gas, can be full of, mix preheating table through two mixed gas distribution is burnt to ceramic wafer, strengthen so control little fiery ability, can satisfy the needs of daily drink.

The furnace shell of whole burner and injector adopt the foundry goods of cast iron or cast aluminium, and two are mixed preheating table is stamping parts, and following mixing preheating table is bonded on the muscle of furnace shell bottom surface with heat-resistant adhesive, makes it to become a cavity; Last mixing preheating table places down and mixes on the preheating table with 3 screw supportings or a pawl supporting; Be bonded on the furnace shell with heat-resistant adhesive.Nozzle is contained on the support plate; Support plate is equipped with on the inlet end face of the injector that is lined with the asbestos rubber pad with screw.Whole burner available active is propped up the pawl screw and is lifted on the stove and accessory shell; Also can be in the tapping of furnace shell bottom hole, be fixed on the crossbeam of stainless steel casing of electronic striking.

Now the accompanying drawing by embodiment more clearly illustrates structure situation:

Fig. 1 is the front view of burner

Fig. 2 is the vertical view of burner

Combustion gas by pipeline through angle valve nozzle (9) spray into furnace shell (6) for one by import contraction section, the mixer of Venturi type injector design, enter according to the volume design of venturi injector diffuser by furnace shell (6) inner chamber bottom surface and muscle and mixes the synthetic diffuser of preheating table (4) down, enter by furnace shell (6) inner chamber bottom surface and down mixed preheating table (4) form the mixing preheating cavity; By mix down preheating table (4) go up with on mix 63 φ 6-φ 9 hole groups that the Kong Qun on the preheating table (3) staggers, enter down the mixing preheating cavity of mixing preheating table (4) and last mixing preheating table (3) formation; 140 φ 5-φ 6 uniform Kong Qun that stagger by the Kong Qun on last mixing preheating table (3) the up and down mixing preheating table (4); Combustion gas and Air mixing gas are exactly to finish mixing, preheating, adjustment static pressure along this path and enter the burning of ceramic wafer (5) flame hole.Angle valve nozzle (9) is fastened on support plate (8) and upward is fastened on furnace shell (6) inlet end face with two M5 screws (10) together with asbestos rubber pad (7); Should guarantee that angle valve nozzle (9) center line is not more than 0.2 millimeter to furnace shell (6) injector mixer center line axiality.Mixing preheating table (4) down is bonded on the muscle of furnace shell (6) inner chamber bottom surface with heat-resistant adhesive; Apart from furnace shell (6) inner chamber bottom surface 13 millimeters, with 3 M3 screws supportings, and place down and mix on the preheating table (4), and be bonded on furnace shell (6) inwall with heat-resistant adhesive, when using oil liquefied gas as combustion gas, upward mix preheating table (3) apart under mixing preheating table (4) 4-6 millimeter; Dark 30 millimeters of furnace shell (6) inner chamber.170 millimeters of ceramic wafer (5) diameters.Be bonded at furnace shell (6) top with heat-resistant adhesive, whole burner is lifted on the stove and accessory shell (1) by the screw of a movable pawl (2).

Claims (3)

1. one kind is the boosting energy-saving gas burner that family's a slap-bang shop cooking of fuel is used with the fuel gas, it is characterized in that: it is the furnace shell of a metal shell by the garden own furnace shell of post thin type burner (6) with the Venturi type injector, middle two mixing preheating table (3), (4) that have the adjustable static pressure of hole group that staggers are mutually formed, at the bottom of middle two mixing preheating tables (3) (4) and furnace shell (6) chamber and form two mixing preheating cavities; The diffuser of injector is by two muscle in furnace shell (6) bottom surface, chamber and bottom surface and mix down preheating table (4) and combine, and upper surface is the combustion gas infra-red china plate (5) that adapts.

2. by claim 1 defined burner, it is characterized in that: adopting garden post thin type furnace shell (6) and Venturi type injector is a metal shell; Diffuser is combined by two muscle in furnace shell (6) bottom surface, chamber and bottom surface and the following preheating table (4) that mixes.

3. by claim 1 defined burner, it is characterized in that: be provided with two mixing preheating tables (3) (4) that have the static pressure adjusted of the Kong Qun that staggers mutually in furnace shell (6) chamber, and mix preheating cavity with two of formation at the bottom of furnace shell (6) chamber.

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