CN201203119Y

CN201203119Y - Combustor and combustion heating device

Info

Publication number: CN201203119Y
Application number: CNU2008200803999U
Authority: CN
Inventors: 原所良
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-05
Filing date: 2008-05-05
Publication date: 2009-03-04
Anticipated expiration: 2018-05-05

Abstract

The utility model relates to a burner and a combustion heating device. The burner comprises a distributor chamber with a cavity body and gas mixing tubes: wherein, the distributor chamber is provided with a fuel gas inlet; the inlet ends of the gas mixing tubes are communicated with the cavity body of the distributor chamber for obtaining fuel gas; the side wall of each gas mixing tube is provided with at least one gas inlet hole for sucking combustion improver to be mixed with the fuel gas; and the outlet end of each gas mixing tube is used for providing mixed gas of the fuel gas and the combustion improver for combustion. The combustion heating device adopts the burner of the utility model. The technical proposal of the utility model improves the mixing effect of fuel gas and air by means of combustion after mixing, increases the thermal efficiency, saves the energy consumption and reduces the environment pollution.

Description

Burner and burning heating equipment

Technical field

The utility model relates to a kind of burner and burning heating equipment, relates in particular to a kind ofly to be applied to the burner of burning heating equipment as combustion head, and the multiple burning heating equipment such as gas stove, boiler and water heater that adopt this burner.

Background technology

Existing various burning heating equipment, Chinese meal cooking gas-cooker, stew gas-cooker, civil gas stove, middle-size and small-size gas fired-boiler and domestic gas water heater etc. in the market for example, it all need use burner to be communicated with fuel gas source with the heating of burning.These burners be otherwise known as usually kitchen range or combustion head.Burners in prior mainly contains two classes, and a class is the combustion-supporting burner of gravity-flow ventilation, and another kind of is the combustion-supporting burner of blower fan forced ventilation.

In the prior art, the structure of common gravity-flow ventilation booster burners is shown in Figure 1A and 1B, and wherein Figure 1A is the side sectional view of this burner, and Figure 1B is the vertical view of this burner.This burner mainly comprises burner cavity 101 and tray for combustion 102.Tray for combustion 102 is as the loam cake of burner cavity 101, is positioned at the burning through hole 103 at center or little burning through hole 103 that a plurality of dispersion is laid is communicated with burner cavity 101 by one.On burner cavity 101, also be communicated with the fuel gas pipeline 4 of supplying with combustion gas.When burning, the combustion gas that fuel gas source 5 provides is directly sent into burner cavity 101 by fuel gas pipeline 4, burning through hole 102 ejections on tray for combustion 102.At this moment, the outside air that feeds between burner cavity 101 and tray for combustion 102 gaps, and the outside air of circulation all can carry out nature with combustion gas and mixes above tray for combustion 102.Ignite combustion gas and Air mixing gas, then combustion gas with the Air mixing process in burn.Therefore, the mixed combustion system of the gas of such burner is called combustion system in the mixing again.Because such burner adopts open burning to replenish air, so its ubiquitous defective is: because of burning while mixing, so the mixed effect of air and combustion gas is bad, when mixing is inhomogeneous, take fire, cause flame front place air-fuel ratio excessive, combustion heat value is not high, and the air-fuel ratio after the flame front is too small, the incomplete combustion that makes combustion gas; Open burning and atmosphere form free convection heat transfer, burning liberated heat major part along with the cold air of circulation naturally to external diffusion, so wasted a large amount of heat energy, the ineffective power consumption efficiency is many.

In the prior art, the structure of common blower fan forced ventilation booster burners as shown in Figure 2, its primary structure is made up of blower fan 201, burner combustion dish 202 and banking fire cap 204 etc.When burning, combustion gas is introduced banking fire cap 204 by fuel gas pipeline 4, then sprays into burner combustion dish 202.The forced ventilation mouth 205 that blower fan 201 forces the circulation of air of introducing to cross burner combustion dish 202 both sides is admitted to burner combustion dish 202.Combustion gas and air carry out mixing and burning in burner combustion dish 202.The gas of such burner mixes combustion system and also belongs to combustion system in the mixing.Because adopting the blower fan forced ventilation mixes, so the following defective of such burner ubiquity: 1) the force ventilated air-flow of blower fan is very fast, gas-flow is taken advantage of a situation mobile in the burner combustion dish with high-speed air flow, the burning while mixing, so undercompounding causes fuel gas buring insufficient; 2) blower fan can produce forced convection heat transfer, has accelerated thermal diffusion, has wasted a lot of heat energy, and the lost work power consumption is more; Little fire was easily blown out by blower fan when 3) large and small fire was changed, and influenced operating efficiency; 4) running of blower fan has expended electric energy, and the noise pollution of blower fan work is very serious.

According to the data that gas-fired equipment inspection center in Beijing's provides, the conversion of the thermal efficiency of national standard Chinese meal cooking stove only is 20%, and thermal waste is very serious, and this is a problem demanding prompt solution.Some energy-saving burners of Chu Xianing have all just been done some improvement in configuration aspects in the market, make ratio of combustion increase, but do not change the mode of mixed combustion, still adopt combustion system in the mixing.Therefore, do not solve the Burner Technology scheme of the low problem of the thermal efficiency in the prior art.

The utility model content

The purpose of this utility model provides a kind of burner and burning heating equipment, improves the combustion thermal efficiency of burner and burning heating equipment with realization, and can energy savings.

For achieving the above object, the utility model provides a kind of burner, comprising:

Distributor chamber is provided with a cavity in this distributor chamber, this distributor chamber is provided with the fuel gas inlet that is communicated with this cavity, and the combustion gas in the fuel gas pipeline enters cavity by this fuel gas inlet;

An above gas mixing pipe, cavity in the arrival end of gas mixing pipe and the distributor chamber is communicated with to obtain combustion gas, and also be provided with at least one on the sidewall of gas mixing pipe and be used to suck the air admission hole that combustion adjuvant mixes with combustion gas, the port of export of gas mixing pipe is used to provide the gaseous mixture of combustion gas and combustion adjuvant to burn.

For achieving the above object, the utility model also provides a kind of burning heating method, comprises the steps:

An above gas mixing pipe is introduced in combustion gas;

In gas mixing pipe, feed combustion adjuvant, combustion adjuvant is mixed through setting stroke in gas mixing pipe with combustion gas, form gaseous mixture;

Make gaseous mixture flow out burning from gas mixing pipe.

For achieving the above object, the utility model provides a kind of burning heating equipment again, comprise: burner of the present utility model, and being used to the chamber that is heated supporting the bracing frame of material to be heated and/or be used for ccontaining fluid to be heated, this burner is fixed on the below that is positioned at material to be heated in the bracing frame and/or is fixed on the below in the chamber that is heated.

By above technical scheme as can be known, the utility model adopts with combustion gas shunting, natural suction air, in the preseting length gas mixing pipe, utilize the vortex phenomenon of near mouthful of section of gas nozzle, combustion gas and air are mixed the mixing after-combustion mode that then sprays mixture combustion again, avoid the problem that occurs in the combustion system in the existing mixing, had following advantage:

1, combustion gas shunting can improve flow velocity, forms eddy current and is beneficial to mix;

2, the living negative pressure of high-speed fuel gas miscarriage can form combustion gas and the mixing of air in the eddy current environment naturally automatically from the air admission hole suction air, mixes, and is respond well;

3, just spray after combustion gas and air fully mix and burn, the gaseous mixture that mixes can burn fully on the one hand, on the other hand, no longer mix during burning, avoided the diffusion of cross-ventilation motion to heat energy, therefore improve the thermal efficiency of burner, reduced energy resource consumption;

4, natural suction air needn't adopt blower fan to quicken air to flow, when realizing abundant air inlet, avoided the required electric energy that expends of blower fan running, the influence of also having avoided the fan noise environmental pollution to cause.

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

Description of drawings

Figure 1A is the side sectional view of gravity-flow ventilation booster burners in the prior art;

Figure 1B is the vertical view of gravity-flow ventilation booster burners in the prior art;

Fig. 2 is the structural representation of blower fan forced ventilation booster burners in the prior art;

Fig. 3 is the structural representation of the concrete embodiment one of the utility model burner;

Fig. 4 is a gas mixing pipe port of export rounding state schematic diagram among the concrete embodiment of the utility model burner;

Fig. 5 is the structural representation of the concrete embodiment two of the utility model burner;

Fig. 6 is the structural representation of the concrete embodiment three of the utility model burner;

Fig. 7 is for helping the structural representation one that mixes sheet among the concrete embodiment four of the utility model burner;

Fig. 8 is for helping the structural representation two that mixes sheet among the concrete embodiment four of the utility model burner;

Fig. 9 is the flow chart of the utility model burning heating method specific embodiment;

Figure 10 is the structural representation of the utility model burning heating equipment specific embodiment one;

Figure 11 is the structural representation of the utility model burning heating equipment specific embodiment two.

Among the figure:

The 101-burner cavity 102-tray for combustion 103-through hole that burns

4-fuel gas pipeline 5-fuel gas source 201-blower fan

202-burner combustion dish 204-banking fire cap 205-forced ventilation mouth

301-distributor chamber 302-gas mixing pipe 303-Connection Block

304-kitchen range base 305-fuel gas inlet 306-gas outlet

307-gas nozzle 308-gaseous mixture nozzle 309-cavity

310-air admission hole 311-tray for combustion 312-helps mixed sheet

313-burning through hole 300-burner 401-bracing frame

The 402-exhaust outlet 501-chamber 502-boiler jacket that is heated

503-exhaust outlet 504-hot water outlet 505-cooling water inlet

The specific embodiment

The basic structure of each embodiment of the utility model burner comprises distributor chamber and a plurality of gas mixing pipe.Be provided with a cavity in this distributor chamber, the distributor chamber wall is provided with the fuel gas inlet that is communicated with cavity and fuel gas pipeline, and the combustion gas in the fuel gas pipeline enters cavity by this fuel gas inlet; Cavity in the arrival end of each gas mixing pipe and the distributor chamber is communicated with to obtain the combustion gas of shunting, and also be provided with at least one on the sidewall of each gas mixing pipe and be used to suck the air admission hole that combustion adjuvant mixes with combustion gas, the port of export of each gas mixing pipe is used to provide the gaseous mixture of combustion gas and combustion adjuvant to burn.

Among each embodiment of the utility model burner, by distributor chamber combustion gas is shunted, then introduce in each gas mixing pipe, in gas mixing pipe, be pumped into air as combustion adjuvant, air and combustion gas are finished mixing through behind certain stroke in gas mixing pipe, when gaseous mixture during, can provide flammable gaseous mixture from the ejection of the port of export of gas mixing pipe.By above-mentioned basic structure as can be known, each embodiment of the utility model burner provides a kind of burner that mixes the after-combustion mode that adopts, and can improve combustion gas and Air mixing effect, thereby improve combustibility.Introduce in detail below by specific embodiment.

Burner embodiment one

Be illustrated in figure 3 as the structural representation of the concrete embodiment one of the utility model burner.The burner of present embodiment comprises distributor chamber 301 and a plurality of gas mixing pipe 302.Wherein, this distributor chamber 301 can be formed by the Connection Block 303 of a plate-like and the kitchen range base 304 relative fastenings of a plate-like, to form cavitys 309 in distributor chamber 301 inside.Offer fuel gas inlet 305 on the wall of distributor chamber 301, as shown in Figure 3, fuel gas inlet 305 specifically can be opened on the kitchen range base 304 as distributor chamber 301 lower surfaces, and the cavitys 309 in the distributor chamber 301 are communicated with the fuel gas pipeline 4 of fuel gas source 5 by fuel gas inlet 305.On Connection Block 303, be provided with a plurality of gas outlets 306 as distributor chamber 301 upper surfaces, and each gas outlet 306 place is provided with a gas nozzle 307 respectively, and the cavity 309 in the arrival end of each gas mixing pipe 302 and the distributor chamber 301 is communicated with by gas outlet 306.Be respectively equipped with a plurality of air admission holes 310 that air mixes with combustion gas that are used to suck on the sidewall of each gas mixing pipe 302, air admission hole 310 can come suction air with combustion adjuvant environmental communication such as ambient atmosphere or source of oxygen.Combustion gas and air mix in gas mixing pipe 302, and then each gas mixing pipe 302 is at its port of export ejection combustion gas and Air mixing gas, so that flammable gaseous mixture to be provided.For increasing the ejection flow velocity of gaseous mixture, gaseous mixture nozzle 308 can be set at the port of export of gas mixing pipe 302, so more help concentrating of flame heat.

The concrete course of work of present embodiment burner is: at first provide the combustion gas of certain pressure in the cavity 309 of distributor chamber 301 by fuel gas source 5; Combustion gas is introduced in a plurality of gas mixing pipes 302 by shunting under the pressure effect of fuel gas source 5 after entering in the cavity 309 of distributor chamber 301; Combustion gas is flowed gas mixing pipe 302 high speeds, and the negative pressure that forms in the gas mixing pipe 302 makes it possible to be pumped in the gas mixing pipe 302 by the air of air admission hole 310 with the external world; In gas mixing pipe 302, combustion gas and air continue the stroke through preseting length, finish mixing in this process; Combustion gas and Air mixing gas are from the port of export ejection of gas mixing pipe 302, so that burn.

For realization mixes the after-combustion mode, and for improving mixed effect, improve combustibility, the present embodiment burner reaches above-mentioned effect by a plurality of its specific structure designs:

The structure that distributor chamber 301 and a plurality of gas mixing pipe 302 match.This structural design significant feature is can be with the combustion gas shunting to improve flow velocity.Because the pressure of fuel gas source is certain, thus multiply be divided into when combustion gas, and the cross-sectional area of per share gas-flow by gas nozzle 307 is hour, the corresponding raising of fuel gas flow speed in each gas mixing pipe 302.The raising of fuel gas flow speed, and circulate in gas mixing pipe 302 contact area of interface and air interface of per share combustion gas is corresponding bigger, all is key factors of improving follow-up combustion gas and air mixed effect.In addition, shunt with gas mixing pipe 302, the different needs that can also adapt to burning heating equipment neatly by the number of adjusting gas mixing pipe 302, gas mixing pipe 302 numbers of burner can be 3～500, what general Chinese meal cooking stove adopted is that 30-60 is individual, home-use kitchen range is a 3-30 gas mixing pipe 302, enough burning heating-up temperatures can be provided, combustion gas appropriately can be shunted again.Large-sized boiler can be determined the number of gas mixing pipe according to the thermic load of boiler, the settings of also available many group burner combination.

The structural design of air admission hole 310 on the gas mixing pipe 302.Air admission hole 310 is arranged on gas mixing pipe 302 sidewalls, particularly follows the position behind the gas nozzle 307 closely, for air provides inlet.Air admission hole 310 can be by the combustion gas negative pressure that flow at high speed produced in gas mixing pipe 302, and nature is pumped into air in the gas mixing pipe 302, need not forced ventilation.The setting of air admission hole 310 preferably along the circumferentially evenly laying of gas mixing pipe 302, for example is provided with four air admission holes 310, each interval 90 degree.Generally speaking, as long as the aperture area of air admission hole 310 satisfies the requirement of suction air amount on each gas mixing pipe 302.So-called suction air amount is the volume that sucks air in the unit interval from each gas mixing pipe 302.Because the pressure of fuel gas source is certain, when the quantity and cross-sectional area one timing of gas mixing pipe 302, the gas quantity that each gas mixing pipe flow through in 302 unit interval also can calculate definite; Again because be roughly 1:5 as the oxygen of combustion adjuvant and the volume ratio of air in the air; And Main Ingredients and Appearance is the combustion gas of methane (CH4), and the burn volume ratio of required oxygen of itself and self is about 1:2.So, amid all these factors can calculate the area of determining to offer on each gas mixing pipe 302 air admission hole 310, therefore, the quantity of air admission hole 310 and area setting preferably make the suction air amount of each gas mixing pipe 302 require to suck enough air according to ideal air-fuel ratio.

Junction at distributor chamber 301 and gas mixing pipe 302 arrival ends is provided with gas nozzle 307.The gas nozzle 307 that combustion gas reduces gradually by the aperture after shunting can further play the effect that improves fuel gas flow speed, and according to principle of hydrodynamics, can make combustion gas forming the eddy current section through gas nozzle 307 backs, is beneficial to mixing.

302 mixed gas outlet end remains with the gas mixing pipe 302 of preseting length from gas nozzle 307 to gas mixing pipe, this is a key point of present embodiment burner, this section gas mixing pipe 302 can provide time enough and space for combustion gas and Air mixing, is beneficial to it and fully mixes.According to principle of hydrodynamics, when fluid after the ejection of the nozzle of smaller aperture due, in follow-up certain distance, promptly the 1:50-100 place of nozzle bore will form the eddy current section, after this flow regime of a segment distance is a steady flow segment.The technical scheme of present embodiment has been utilized this principle, according to the aperture of gas nozzle 307, the length of mixed gas outlet end to the gas mixing pipe between the gas nozzle 307 is set, and this segment distance also can be described as mixer.Preferred implementation is: the aperture that gas nozzle 307 is set is 0.2～0.3 millimeter, and the ratio that length of mixing and gas nozzle aperture 307 length are set approximates 50:1.In the practical application, the length of mixer preferably is set to 13 centimetres, has had all multifactor consideration of mixed effect, product cost and volume concurrently.According to the experimental study result, the size of gas nozzle 307 and mixer can obtain combustion gas and the best mixed effect of air under the eddy current state during according to above-mentioned design.Certainly, needs as the case may be, the aperture equidimension of gas nozzle 307 and the design of number all can be adjusted.For example, the aperture of gas nozzle 307 can change in 0.1～1 millimeter scope, the ratio of length of mixing and gas nozzle 307 aperture lengths can less than or greater than 50.In general, when this ratio surpasses 100,,, then little to the improvement contribution of mixed effect so the growth of gas mixing pipe 302 length only can cause the increase of cost and small product size because the eddy current admixture that gas nozzle 307 backs are produced disappears substantially.

Comprehensively to the structural analysis of present embodiment burner as can be known, in this burner, combustion gas just sprays after fully mixing with air and burns, belong to the after-combustion mode of mixing, it efficiently solves in the existing burner, the existing undercompounding of combustion system in the mixing, the problem that efficiency of combustion is low.Therefore, the advantage of present embodiment technical scheme is: 1) do not have the convection current of outside air when burning, avoided the thermal diffusion phenomenon that burning causes while mixing, the phenomenon of thermal waste has also obtained avoiding, so reduced specific energy loss, can energy savings, more can improve the thermal efficiency and reach more than 50%; 2) adopt a plurality of gas mixing pipes that combustion gas is split into many parts, because combustion gas is shunted, and the cross section of each gas mixing pipe is less, so gas flow rate improves relatively, can quicken combustion gas and Air mixing, in the less space of circulation area, also be more conducive to combustion gas and air mixes, simultaneously, combustion gas and Air mixing will have enough room and times to mix through the certain stroke in the gas mixing pipe, the gaseous mixture that mixes is burnt, its air-fuel ratio is even, can not have the too much or very few combustion case of oxygen, can significantly improve combustion efficiency, make burning more abundant, the thermal efficiency is higher; 3) the flow velocity raising also makes the gas mixing pipe internal pressure lower, can need not to adopt blower fan by air admission hole nature suction air, then can economize on electricity, and reduce noise pollution; 4) gas mixing pipe is exposed among the air, outside air can be implemented air-cooled cooling to gas mixing pipe, then can reduce the resistant to elevated temperatures requirement of gas mixing pipe material on the one hand, thereby reduce cost, can increase the temperature difference of the gas mixing pipe arrival end and the port of export on the other hand, further quicken to flow.In sum, the burner of present embodiment has had thermal efficiency height concurrently, cost is low, energy-saving and cost-reducing and the advantage of all many-sides such as environmental protection.

The burner of present embodiment can have various ways in concrete the application, for example: when the number of gas mixing pipe is one, because its enough room and time that provide combustion gas and air to mix, so also have the after-combustion of mixing mode institute inherent advantages, as good mixing effect, burning fully; Avoid thermal diffusion, reduce invalid energy consumption.

And on the basis of present embodiment, the axis shape of gas mixing pipe 302 and the distribution mode of gas mixing pipe 302 can have multiple design form.For example can design its axis is linear, and each gas mixing pipe 302 is spaced apart at a certain distance, parallel laying; Perhaps can design its axis at the port of export place of parallel gas mixing pipe 302 is broken line shape, the port of export of each gas mixing pipe 302 is provided with, as shown in Figure 4 towards the center; Perhaps can also as required gas mixing pipe be guided into a plurality of directions, form many bunches of flames.The design of a plurality of gas mixing pipes not only can improve combustion efficiency, can also make the design of burner more flexible, increases the quantity of hot spot, adjusts the position of hot spot flexibly.

Burner embodiment two

Be illustrated in figure 5 as the structural representation of the concrete embodiment two of the utility model burner.Present embodiment is on the basis of embodiment one, one tray for combustion 311 is set in burner, on tray for combustion 311, offer a plurality of burning through holes 313, the port of export of each gas mixing pipe 302 is embedded in the through hole 313 that respectively burns on the tray for combustion 311, pass burning through hole 313 and expose tray for combustion 311, be used to provide gaseous mixture on tray for combustion 311, to burn.

Tray for combustion 311 the port of export that can fix each gas mixing pipe 302 is set, concentrated combustion flame is applicable to the requirement of common burning heating equipment.And the setting of tray for combustion 311 can be isolated flame and gas mixing pipe 302 relatively, and gas mixing pipe 302 is had protective effect, has reduced gas mixing pipe 302 materials to stable on heating requirement, thereby can reduce product cost.

In concrete the application, a ccontaining shell can also further be set between tray for combustion and distributor chamber, an end of ccontaining shell is fixed on the tray for combustion, and the other end is unsettled and be higher than the gas mixing pipe passage, plays the protective effect to gas mixing pipe.Usually, burner is embedded among the burning heating equipment such as cooking stove, water heater, also can need not the protection of ccontaining shell.

Burner embodiment three

Be illustrated in figure 6 as the structural representation of the concrete embodiment three of the utility model burner.This burner has increased to help on the basis of embodiment one and has loaded in mixture the structure of putting.The burner of present embodiment also is provided with one and helps mixed sheet 312 to put as helping to load in mixture in gas mixing pipe 302, be used to guide gaseous mixture to form turbulent flow.Help the shape of mixing sheet 312 and the position being set multiple mode can be arranged in gas mixing pipe 302, the transverse cross-section parallel of mixing sheet 312 and gas mixing pipe 302 that helps of sheet preferably is set, helping of adapting to of profile phase in outer margin contour and gas mixing pipe 302 cross sections mixed sheet 312 blocks and is located in the gas mixing pipe 302, and help on the edge that mixes sheet 312 and offer recess, as shown in Figure 7.A kind of preferable set-up mode is: gas mixing pipe 302 middle parts are the major part of finishing mixing than one section that grows, help and mix sheet 312 and can be arranged on respect in the cumulative port of export of gas mixing pipe 302 middle part calibers, so, help the aperture area that mixes on the sheet 312 and the ratio range of gas mixing pipe 302 middle part cross-sectional areas can be 1:0.5～2, preferably 1:1.2.When combustion gas and air are flowed through shown in Figure 7 helping when mixing sheet 312, the gaseous mixture fluid is received aid and is mixed stopping of sheet 312 and be drawn towards the indent ejection.Therefore, the gaseous mixture fluid can reach bigger Reynolds (Reynold's) criterion through helping the flow regime of mixing sheet 312, thereby makes combustion gas and air form turbulent flow when mixing sheet 312 flowing through to help, and further helps the abundant mixing of combustion gas and air.

In the present embodiment, will help mixed sheet closing on the setting of gas mixing pipe port of export place.Help combustion gas and air to mix on the one hand, play to help and mix up usefulness, can also isolate combustion flame on the other hand, promptly avoid in gas mixing pipe, occurring tempering phenomenon.

Certainly, help and load in mixture the shape of putting and be not limited to sheet, help the shape of mixing sheet also to be not limited to as shown in Figure 7 a kind of form, can also be other forms, for example helping circumferential uniform several through holes of offering on the mixed sheet 312, as shown in Figure 8, can be three～seven, the ratio of its aperture area and gas mixing pipe middle part cross-sectional area can change in the scope of 1:0.5～2.Perhaps can make up and offer recess or through hole.Helping other set-up modes that mix sheet, also can be that the form setting with the helical form fin helps mixed sheet on the sidewall of gas mixing pipe, as long as can help gaseous mixture to form turbulent flow, makes that mixing is more abundant to get final product.In concrete the application, help the number of mixing sheet to be not limited to only be provided with one in each gas mixing pipe, also can be provided with a plurality of.And be not limited to be arranged on the port of export of gas mixing pipe, can also be arranged on positions such as arrival end or middle part.

The technical scheme of present embodiment can further be improved combustion gas and Air mixing effect, makes burning more abundant, thereby improves the thermal efficiency.Can also avoid tempering, be the protection to non-combustion zone parts such as gas mixing pipes, reduced the high temperature resistant requirement to this place's material, can reduce product cost.

Burning heating method embodiment

Be illustrated in figure 9 as the flow chart of the utility model burning heating method specific embodiment.This method can adopt the device of the utility model burner embodiment one to carry out, and it specifically comprises the steps:

Step 1, fuel gas source charge into combustion gas in the cavity of burner distributor chamber, and cavity is introduced the combustion gas shunting in a plurality of gas mixing pipes;

Step 2, in gas mixing pipe under the suction function of high-velocity fluid, by the suction air from ambient atmosphere of the air admission hole on the gas mixing pipe, thereby bubbling air is as combustion adjuvant in gas mixing pipe, and air and combustion gas through setting stroke, mix and form gaseous mixture in gas mixing pipe;

Step 3, gaseous mixture is flowed out, from gas mixing pipe to burn.

The burning heating method of present embodiment has realized that just spraying gaseous mixture after combustion gas and air fully mix burns, and belongs to the after-combustion mode of mixing.It efficiently solves in the burning heating method of existing burner, the existing undercompounding of combustion system in the mixing, the problem that efficiency of combustion is low.This burning heating method has many-sided advantage: combustion gas and air be burning again after mixing, and has avoided the thermal diffusion phenomenon of burning and causing while mixing, has reduced specific energy loss, can energy savings, and more can improve the thermal efficiency and reach more than 50%; Combustion gas is split into many parts, and mixes through enough eddy current section strokes, good mixing effect, combustion efficiency improves, and makes burning more abundant, and the thermal efficiency is higher; Gas flow rate improves also makes the gas mixing pipe internal pressure lower, can need not to adopt blower fan by air admission hole nature suction air, then can economize on electricity, and reduce noise pollution.In sum, the burning heating method of present embodiment has had thermal efficiency height concurrently, cost is low, energy-saving and cost-reducing and the advantage of all many-sides such as environmental protection.

On the basis of present embodiment, can will ignite with before burning from the gaseous mixture of gas mixing pipe ejection in step 3, mixed airflow is crossed blocked helping when mixing sheet of establishing in the gas mixing pipe, form turbulent flow through helping the recess guiding that mixes on the sheet.This burning heating method can adopt the technical scheme of the utility model burner embodiment three, can further improve mixed effect, promotes burning.

In concrete the application, burning heating method of the present utility model can be the performed method of the utility model burner any embodiment, all can realize mixing the combustion method of after-combustion, improves combustion efficiency, improves the thermal efficiency.

Burning heating equipment embodiment one

Be the structural representation of the utility model burning heating equipment specific embodiment one as shown in figure 10.The burning heating equipment of present embodiment is specifically as follows a kind of cooking stove, for example Chinese meal cooking stove, Chinese meal stew kitchen range etc.This burning heating equipment adopts any embodiment of the utility model burner as kitchen range, and its structure mainly comprises: burner 300, be used to support the bracing frame 401 of material to be heated, and this burner 300 is fixed in the bracing frame 401 to be positioned at the below of material to be heated.

As a kind of cooking stove, material to be heated generally is exactly the pot that cooking is used, and pot is placed on the bracing frame 401 that is a recess shape, forms the combustion chamber between the bottom of a pan and bracing frame 401.Burner 300 is fixed on the bottom of bracing frame 401, and makes air admission hole 310 on burner 300 gas mixing pipes 302 be positioned at the bottom of bracing frame 401, avoids entering in the scope of combustion chamber.Like this, when burning, burner 300 provides flammable gaseous mixture with under the state that outside air mixes not burning fully.

During specific to Chinese meal cooking stove and stew kitchen range, the upper surface of burner is preferable distance when being 10-15 centimetre apart from the distance of pot bottom, and promptly the bottom of a pan should place the centre position of burning polot flame length to be advisable.And the mixed gas outlet end that gas mixing pipe can be set in cooking stove neatly draws in to the center, and the flame of more assembling is provided.In the stew kitchen range, the mixed gas outlet end that gas mixing pipe can be set is parallel to each other, and comparatively average heating surface (area) (HS is provided.Further, the parameters such as length of the size of diameter that can be by control centre and edge's gas mixing pipe, the area of air admission hole and quantity, gas nozzle and position, mixer, thereby control combustion gas and Air mixing ratio, the control mixed gas flow is to obtain required flame distribution.

The cooking stove that adopts the utility model burner not only is the advantage of aforesaid burner itself also to have other advantages than the difference of existing cooking stove.The existing open cooking stove that mixes naturally need be provided with burnt gas exhaust outlet and airport usually in the edge and the bottom of bracing frame, in exhaust, also constantly introduces fresh air, so just can finish the ventilation of combustion chamber, guarantees to provide enough oxygen.But, the burning heating equipment of present embodiment, as shown in figure 10, because need not in the combustion chamber, to introduce air in the combustion process, so less burnt gas exhaust outlet 402 can be set, this structural design has basically formed a non-environment of exchange naturally of air in the combustion chamber, it is advantageous that further to reduce cross-ventilation, avoid the cooling effect to the combustion chamber of thermal diffusion and cold air, the burning liberated heat almost completely is retained in and is used for heating in the combustion chamber.

Adopt the burning heating equipment of the utility model burner, thermal efficiency height, and can energy savings, also can exempt the force ventilated dependence of blower fan, avoided noise pollution to environment.

Burning heating equipment embodiment

Be the structural representation of the utility model burning heating equipment specific embodiment two as shown in figure 11.The burning heating equipment of present embodiment is specifically as follows a kind of boiler, the any embodiment that adopts the utility model burner is as heater, the structure of this boiler mainly comprises: burner 300, the chamber 501 that is heated that is used for ccontaining fluid to be heated, this burner 300 is fixed on the below in the chamber 501 that is heated, and is used for heating the chamber 501 that is heated.

Concrete, this boiler can be as shown in figure 11, the chamber 501 that is heated is placed within the boiler jacket 502, the be heated top in chamber 501 is connected with hot water outlet 504, the be heated bottom in chamber 501 is connected with cold water inlet 505, burner 300 of the present utility model is fixed on the below in the chamber 501 that is heated, and forms the combustion chamber between the outer wall in the chamber 501 that is heated and the inwall of boiler jacket 502, and a burnt gas exhaust outlet 503 is set above boiler jacket 502.This burner 300 can be embedded in the boiler jacket 502; and the scope that makes the air admission hole 310 on the gas mixing pipe 302 break away from the combustion chamber; be arranged on outside the boiler jacket 502; one condition of mixing after-combustion fully can either be provided, also help protecting parts such as gas mixing pipe 302 and air admission hole 310 not to be subjected to the infringement of high temperature.

Adopt the burning heating equipment of the utility model burner, possessed the advantage of this burner itself, thermal efficiency height can energy savings, also can exempt the force ventilated dependence of blower fan, has avoided the noise pollution to environment.

The boiler formula burning heating equipment of present embodiment can also replace with family expenses or industrial water heater.When as pot-type boiler, adopt burner of the present utility model equally, the be heated volume and the position in chamber of appropriate change gets final product.In addition, burner of the present utility model can also be widely used in various burning heating equipment, for example can this burner be fixed on material to be heated and the below in the chamber that is heated, heat simultaneously in conjunction with the structure in the bracing frame and the chamber that is heated in burning heating equipment.The utility model reaches thermal efficiency raising, effect in energy saving and environmental protection with the combustion system that mixes after-combustion.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1, a kind of burner is characterized in that comprising:

Distributor chamber is provided with a cavity in the described distributor chamber, described distributor chamber is provided with the fuel gas inlet that is communicated with described cavity, and the combustion gas in the fuel gas pipeline enters cavity by this fuel gas inlet;

An above gas mixing pipe, cavity in the arrival end of described gas mixing pipe and the described distributor chamber is communicated with to obtain combustion gas, and also be provided with at least one on the sidewall of described gas mixing pipe and be used to suck the air admission hole that combustion adjuvant mixes with described combustion gas, the port of export of described gas mixing pipe is used to provide the gaseous mixture of combustion gas and combustion adjuvant to burn.

2, burner according to claim 1 is characterized in that: the port of export of described gas mixing pipe is embedded in each through hole on the tray for combustion, is used to provide described gaseous mixture to burn on described tray for combustion.

3, burner according to claim 1 is characterized in that: also be provided with one or more and help to load in mixture and put in described gas mixing pipe, be used to guide described gaseous mixture to form turbulent flow.

4, burner according to claim 3 is characterized in that: described helping loads in mixture the sheet that is shaped as of putting, and offers recess and/or through hole on the edge, described help to load in mixture to put to block be located in the described gas mixing pipe.

5, burner according to claim 4 is characterized in that: described help to load in mixture put the port of export setting that closes on described gas mixing pipe.

6, burner according to claim 2 is characterized in that: the outside of described gas mixing pipe is arranged with ccontaining shell, and an end of described ccontaining shell is fixed on the described tray for combustion, and the other end is unsettled and be not less than the gas mixing pipe air admission hole.

7, burner according to claim 1 is characterized in that: described air admission hole is circumferentially evenly laid along the sidewall of described gas mixing pipe.

8, a kind of burning heating equipment that adopts the described arbitrary burner of claim 1～7, it is characterized in that comprising: described burner and be used to the chamber that is heated supporting the bracing frame of material to be heated and/or be used for ccontaining fluid to be heated, described burner is fixed on the below that is positioned at described material to be heated in the bracing frame and/or is fixed on the below in the described chamber that is heated.