Utility model content
Main purpose of the present utility model is to provide a kind of burner and gas heater of gas heater, is intended to the required auxiliary air of aftercombustion effectively, thereby makes the burning of combustion gas more abundant, improves the thermal efficiency and the adaptive capacity of burner.
For achieving the above object, the utility model provides a kind of burner of gas heater, comprise multiple fire rows, described fire row comprises fire row body and flame body, described fire row body has ejecting port and the diffuser for gas circulation, described flame body is arranged on the exit of described diffuser, and be tightly connected with the sidewall of described fire row body, the top of described flame body has a combustion front, this combustion front is divided into the first combustion front, the second combustion front, and flame division surface between described the first combustion front and the second combustion front, described the first combustion front and the second combustion front are equipped with some groups of fire holes, in described some groups of fire holes, between every two adjacent groups fire hole, be provided with flame separate septal area.
Preferably, described fire hole comprise be positioned at described flame body front main fire hole and be positioned at described flame body side surface from fire hole, the sidewall of described fire row body stretches out and forms and each group of fire hole stable flame piece one to one, between the sidewall of described stable flame piece and described flame body, form steady flame chamber, and be describedly communicated with described steady flame chamber from fire hole.
Preferably, between adjacent two described stable flame pieces, be formed with and the first air inlet one to one of flame separate septal area described in each.
Preferably, the angle of described the first combustion front and described the second combustion front is a preset angles.
Preferably, described preset angles is α, and 120 °≤α≤150 °.
Preferably, described main fire hole with described be the continuous hole being communicated with from fire hole.
Preferably, the top outward of described stable flame piece extends to form a flange.
Preferably, the outer end of described flange is concaved with the second air inlet.
The utility model further provides a kind of gas heater, it comprises a burner, this burner comprises multiple fire rows, described fire row comprises fire row body and flame body, described fire row body has ejecting port and the diffuser for gas circulation, described flame body is arranged on the exit of described diffuser, and be tightly connected with the sidewall of described fire row body, the top of described flame body has a combustion front, this combustion front is divided into the first combustion front, the second combustion front, and flame division surface between described the first combustion front and the second combustion front, described the first combustion front and the second combustion front are equipped with some groups of fire holes, in described some groups of fire holes, between every two adjacent groups fire hole, be provided with flame separate septal area.
The burner of a kind of gas heater provided by the utility model and gas heater, by being provided with the flame separate septal area of two groups of fire holes of space between adjacent on the combustion front at flame body, make auxiliary air add to each group of fire hole region by each flame separate septal area, effectively supplement the required auxiliary air that burns, thereby make the burning of combustion gas more abundant, improve the thermal efficiency and the adaptive capacity of burner.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of burner of gas heater, comprises multiple fire rows, and fire row is parallel to be set up in parallel.Referring to Fig. 1, in one embodiment, the fire row of this burner is T-shaped; Referring to Fig. 2, in another embodiment, the fire row of this burner is " tobacco pipe " shape.Certainly, in of the present utility model other are implemented, the fire row of burner can also be other any suitable planforms, and therefore not to repeat here.The fire row of previous combustion device comprises fire row body 1 and flame body 2, fire row body 1 has ejecting port 11 and the diffuser 13 for gas circulation, and be communicated with by mixing section 12 between ejecting port 11 and diffuser 13, be understandable that, the combustion gas transfer passage being made up of ejecting port 11, mixing section 12 and diffuser 13 is common technology scheme in industry, by those skilled in the art is known, and therefore not to repeat here.
Referring to Fig. 3 and Fig. 4, particularly, flame body 2 is arranged on the exit (being the top end opening place of fire row body 1) of diffuser 13, and is tightly connected with the sidewall of fire row body 1, for example, the sidewall of the sidewall of flame body 2 and fire row body 1 is realized sealing by laser weld and is fixed.In addition, flame body 2 also can be one-body molded with fire row body 1.Below the specific constructive form of fire row body 1 and flame body 2 is elaborated.
The top of flame body 2 has a combustion front a, and this combustion front a is divided into the first combustion front a1, the second combustion front a2, and flame division surface a3 between this first combustion front a1 and the second combustion front a2.In preferred embodiments of the present utility model, flame division surface a3 is positioned at the centre position of combustion front a, and the first combustion front a1 and the second combustion front a2 are symmetrical arranged about flame division surface a3.Be understandable that, below be only a kind of preferred embodiments that combustion front a is divided into the first combustion front a1, the second combustion front a2 and flame division surface a3, in other embodiment of the present utility model, can also according to actual needs combustion front a be divided into other any suitable regions, therefore not to repeat here.The first combustion front a1 and the second combustion front a2 (are for example equipped with some groups of fire holes, shown in Figure 3, some fire holes 21 in dotted line frame b are one group of fire hole), and in the some groups of fire holes of the first combustion front a1, between every two adjacent groups fire hole, be provided with flame separate septal area c, in the some groups of fire holes of the second combustion front a2, between every two adjacent groups fire hole, be also provided with flame separate septal area c, therefore, air can be diffused into each fire hole 21 regions by flame division surface a3 and each flame separate septal area c.It should be noted that, the division principle of the upper every group of fire hole of the first combustion front a1 and the second combustion front a2 can be determined according to actual needs, for example, the concrete quantity of the fire hole 21 comprising in every group of fire hole can be consistent, also can be inconsistent, and the spacing size between two adjacent groups fire hole should be set according to actual needs, to ensure to meet by flame division surface a3 and the supplementary air capacity of each flame separate septal area c the combustion requirements of burner, therefore not to repeat here.
When burner is in the time using state, combustion gas enters from the ejecting port 11 of fire row body 1, and injection enters primary air simultaneously; Combustion gas and primary air enter mixing section 12 and are mixed to form flammable premixed gas, and this combustibility premixed gas is by the fire hole 21 ejection burnings from flame body 2 after the diffusion action of diffuser 13.In the combustion process of burner, between cold and hot air, form strong convection current, therefore, auxiliary air can enter fire hole 21 regions by flame division surface a3 and each flame separate septal area c, the required oxygen of aftercombustion effectively, thereby make burning more fully stable, improved the thermal efficiency and the adaptive capacity of burner.
Referring to Fig. 5, in the present embodiment, fire row body 1 and the 2 split settings of flame body, the madial wall laminating of the lateral wall of flame body 2 and fire row body 1, and fix by welded seal.Fire hole 21 comprise be positioned at the main fire hole 211 in flame body 2 fronts and be positioned at flame body 2 sides from fire hole 212, the sidewall (being specially the head portion near fire row body 1) of fire row body 1 stretches out and forms and each group of fire hole stable flame piece 15 one to one, between this stable flame piece 15 and the sidewall of flame body 2, form steady flame chamber d, and be communicated with from the steady flame of fire hole 212 and this chamber d.It is worth mentioning that, stable flame piece 15 can also with the 1 split setting of fire row body, for example, make stable flame piece 15 after moulding by being welded and fixed the correspondence position that is arranged on fire row body 1.In the combustion process of burner, flammable premixed gas mainly burns from main fire hole 211 ejections of flame body 2, the flammable premixed gas of part sprays from fire hole 212 from flame body 2, owing to being subject to stopping of stable flame piece 15, in steady flame chamber d, form high temperature gases recirculating district from the flammable premixed gas spraying from fire hole 212 of flame body 2, therefore in steady flame chamber d, be formed with stable incendiary source, not only ensure that the flammable premixed gas in steady flame chamber d can continue, burn steadily, and stabilizing the flame in steady flame chamber d can also provide incendiary source to main fire hole 211, make the burning of whole burner more stable and abundant.It should be noted that, for fire row body 1 and the integrated situation of flame body 2, stable flame piece 15 and the 1 split setting of fire row body, and be fixed together by welding or other any suitable connected modes.
It is worth mentioning that, main fire hole 211 and can being independently opened in flame body 2 from fire hole 212, or, main fire hole 211 and can also be the continuous hole being connected from fire hole 212.In the present embodiment, main fire hole 211 and be preferably integrated continuous hole from fire hole 212, thus ensure flame continous-stable.
In the present embodiment, between adjacent two stable flame pieces 15, be formed with each flame separate septal area c one to one the first air inlet 14(referring to Fig. 3).The first air inlet 14 is communicated with flame separate septal area c, therefore, in the combustion process of burner, air upwards flows from burner below, and be diffused into flame separate septal area c by the first air inlet 14, and then be diffused into fire hole 21 regions, the required oxygen of aftercombustion effectively by flame division surface a3 and each flame separate septal area c, thereby make burning more fully stable, improved the thermal efficiency and the adaptive capacity of burner.In addition, because the first air inlet 14 is corresponding with flame separate septal area c, the air therefore supplementing into by the first air inlet 14 can not cause interference to the flame of main fire hole 211, has avoided auxiliary air by the blow off phenomenon of main fire hole 211 of flame.
In the present embodiment, the angle of the first combustion front a1 and the second combustion front a2 is a preset angles.In one preferred embodiments, this preset angles is α, and 120 °≤α≤150 °.This preset angles value is in applicable scope, so that combustion front a forms V-arrangement face, thereby make flammable premixed gas in upwards mobile also to two side flow, therefore ensure that a certain amount of flammable premixed gas sprays from fire hole 212, and form high temperature gases recirculating district in steady flame chamber d, and then be formed with stable incendiary source.
In the present embodiment, the top outward of stable flame piece 15 extends to form a flange 16(referring to Fig. 3).This flange 16 is corresponding with each group of fire hole, and in a preferred embodiments, flange 16 is approximately perpendicular to the side of fire row body 1.For the gas heater that adopts forced-air blast or exhausting smoke evacuation, the flow velocity of the air in fire row body 1 outside is conventionally larger, if swiftly flowing air directly flows through from the side of fire hole 21, easily occur due to oxygen supply amount prosperous the caused series of problems that causes burning greatly, for example, flame instability, combustion noise is large etc., set up after flange 16, the impact that the flow at high speed air that can effectively avoid below to come up causes flame, ensures flame stabilization burning.
In addition, for fear of reducing the required auxiliary air of aftercombustion owing to setting up flange 16, the outer end of this flange 16 is concaved with the second air inlet 161, particularly, this second air inlet 161 is for being arranged on the breach on flange 16, and the size of breach should be determined according to the performance of ventilating of gas heater and actual condition, gives the auxiliary air of burner supplement trace by the second air inlet 161, guarantee sufficient combustion and stable, further improve combustibility and the adaptive capacity of burner.
The utility model also provides a kind of gas heater.
The gas heater that the present embodiment provides, it comprises a burner, this burner comprises multiple fire rows, described fire row comprises fire row body and flame body, described fire row body has ejecting port and the diffuser for gas circulation, described flame body is arranged on the exit of described diffuser, and be tightly connected with the sidewall of described fire row body, the top of described flame body has a combustion front, this combustion front is divided into the first combustion front, the second combustion front, and flame division surface between described the first combustion front and the second combustion front, described the first combustion front and the second combustion front are equipped with some groups of fire holes, in described some groups of fire holes, between every two adjacent groups fire hole, be provided with flame separate septal area.
This gas heater embodiment comprises whole technical schemes of the whole embodiment of said burner, and the technique effect reaching is also identical, does not repeat them here.
Should be understood that; these are only preferred embodiment of the present utility model; can not therefore limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.