CN2077084U - Pipe-type nonflame burner - Google Patents

Abstract

The utility model belongs to a burner which makes use of combustion gas and directly achieves nonflame combustion on porous far infrared radiation ceramic material and a wire net cover to far infrared radiation which is used as main heat energy and used for various heating. The burner is characterized in that a burning core made of the porous far infrared radiation ceramic material forms a pipe shape. The lateral surface of the pipe wall of the burning core is provided with the wire spiral net cover which is surrounded as a combustion radiation surface, and a mixing pipe is arranged in a lumen. The burner has the advantages of high thermal efficiency, simple structure, low cost, small volume, big combustion radiation surface, wide radiation range, and le carbon monoxide, being especially suitable for devices for warming, baking and heating water.

Description

Pipe-type nonflame burner

The utility model belongs to and utilizes directly flameless combustion on porous gas far-infrared radiation ceramic material and wire guard of gaseous fuel (natural gas, town gas, liquefied petroleum gas, biogas), generation is main heat energy form with far infrared radiation, is used for the burner of various heating purposes.

It is maximum at present to add the plate shaped flameless burner of wire guard with porous gas far-infrared radiation ceramic plate in the burner of domestic and international application combustion gas far infrared heating technology.It has thermal efficiency height, simple in structure, draw materials conveniently, cost is low, applied widely, noise is little, carbon monoxide generates advantage such as few and be the characteristics of main heat transfer form with far infrared radiation.Because such burner all uses the porous ceramic plate of disk construction, mostly being half sintering on it is made burns till, a large amount of honeycomb sample break-through apertures are arranged on the plate in addition, so bad mechanical strength need strict control individual plates size, so such burner still has the porous ceramic plate cracky, burner monomer burning radiation face area is little, radiation direction is single, and radiation scope is narrow, from non-radiative more deficiencies that waits of lost heat energy such as housings.

The purpose of this utility model is by changing the shape and structure of porous gas far-infrared radiation ceramic core body, overcoming the deficiency of above-mentioned plate shaped flameless burner.

The tubular flameless burner of the utility model is by wire spirality guard＜1 〉, porous ceramic pipe＜2 〉, gas mixing pipe＜3 〉, anti-stream cover＜4 〉, sealing gasket＜5〉＜6 〉, fixed cover＜7 〉, fixed screw＜8〉＜9 〉, nozzle＜10〉air door＜11〉is formed, as accompanying drawing 1, shown in 2, its combustion function is achieved in that combustion gas is when nozzle＜10〉sprays into gas mixing pipe＜3 〉, because suction function aspirates into the passage of air from air door＜11〉simultaneously, in tube chamber, mix after anti-stream cover＜4〉stops in the anti-cavity that flows between porous ceramic pipe＜2〉madial wall and gas mixing pipe＜3〉lateral wall, and directly helped shunting to be isolated into several parts by the stringer on gas mixing pipe＜3〉lateral wall, aperture from porous ceramic pipe＜2〉tube wall flows out and flameless combustion on the tube wall outer surface at last, directly the heating tube wall gives off far infrared when arriving uniform temperature.Second-time burning is carried out in imperfect combustion combustion gas between wire spirality guard＜1〉and porous ceramic pipe＜2〉tube wall makes burning fully, has improved pipe outer surface temperature simultaneously and has made the surface temperature uniformity, and increased radiation surface area.

Describe the utility model technology contents and embodiment in detail below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the embodiment profilograph;

Fig. 2 is Figure 1A---A face sectional elevation;

This example is a kind of tubular flameless burner that is applicable to heating, baking, water heater according to the design of the utility model technology contents, is made up of wire spirality guard＜1 〉, porous ceramic pipe＜2 〉, gas mixing pipe＜3 〉, anti-stream cover＜4 〉, sealing gasket＜5〉＜6 〉, fixed cover＜7 〉, fixed screw＜8〉＜9 〉, nozzle＜10 〉, air door＜11 〉.

Wire spirality guard＜1〉is made by alloy silks such as siderochrome aluminium or nickel chromium triangles; The alloy filament winding that earlier with diameter is 0.5～1mm is made helix, spiral pitch diameter 5-10mm, screw pitch 2-4mm, again with its tight spiral surrounding on porous ceramic pipe＜2〉outer side wall surface, form the burning radiation face jointly.

Porous ceramic pipe＜2〉is a tubular-shaped structures, is made by combustion gas far-infrared radiation ceramic material, and is preferably Integratively formed, but also split is adhesion-molded; The tube wall cross section is annular or equilateral annular, thickness of pipe wall 8～14mm; The aperture that a large amount of honeycomb sample apertures are 0.8～1.5mm is radial vertical break-through tube wall, aperture pitch 0.5～1.5mm along the die axis; External diameter of pipe, pipe range need to choose by application target, thermic load, burning radiation face area.

Gas mixing pipe＜3〉places in porous ceramic pipe＜2〉tube chamber, is made through casting or welding by metal materials such as iron, stainless steel, aluminium alloys; Lumen shape, caliber, pipe range mix the gas requirement by flameless combustion and choose; Pipe has the straight rib of arranging along the stringer of die axis on the lateral wall, and the straight same porous ceramic pipe of rib outer rim＜2〉madial wall connects airtight and touches the thick 1～2mm of straight rib, can have more than 2 or 2; Plated film or polishing are preferably carried out in pipe lateral wall and straight rib surface, to strengthen reflex, reduce the radiations heat energy loss.

Anti-stream cover＜4 〉, fixed cover＜7〉are by metal material punch formings such as iron, stainless steel, aluminium alloys; There is the inside skimmer cone of an awl point at anti-stream cover top center place.

Sealing gasket＜5〉＜6〉is made by insulating refractories such as mineral wools, and thickness is 5～10mm, and concrete shape is chosen on demand.

Fixed screw＜8〉＜9〉is that 3～4mm steel material is made by diameter.Nozzle＜10〉and air door＜11〉are chosen on demand.

The fixing of each parts finished with being connected by anti-stream cover＜4 〉, fixed cover＜7〉and the fixed screw that is connected them＜8〉＜9 〉; Porous ceramic pipe＜2〉two ends are tightly connected with borrowing sealing gasket＜5〉＜6〉to form thermal insulation between anti-stream cover＜4〉and the fixed cover＜7 〉.

Be the concrete data of one type of present embodiment below:

Purposes: domestic heating or baking;

Combustion gas kind: natural gas;

Gaseous-pressure: 200～250mm water column;

Thermic load: 3000 kilocalories/hour;

Wire spirality guard＜1 〉: wire diameter 0.8mm, spiral pitch diameter 5mm, screw pitch 2mm, Aludirome;

Porous ceramic pipe＜2 〉: pipe range 80mm, external diameter of pipe 80mm, wall thickness 10mm, small aperture 1mm, aperture pitch 0.8-1.2mm;

Gas mixing pipe＜3 〉: pipe range 100mm, bore 30mm, straight rib is equidistant 4, the thick 1.5mm of rib;

Anti-stream cover＜4 〉: height 30mm;

Sealing gasket＜5〉＜6 〉: thickness 5mm, mineral wool;

Fixed screw＜8〉＜9 〉: diameter 3mm, steel;

Nozzle＜10 〉: aperture 1mm.

The utility model is owing to adopted the porous ceramic pipe＜2〉of tubular-shaped structures and the wire spirality guard＜1〉that adapts, gas mixing pipe＜3〉etc., make it to have bigger than plate shaped flameless burner radiation burning area, radiation scope is wide, volume is little, the radiant heat energy loss is few, porous ceramic pipe is cracky not, and is aesthetic in appearance, more is applicable to the advantage of heating, baking and water heater.

Claims (6)

1, a kind of by wire spirality guard＜1 〉, porous ceramic pipe＜2, gas mixing pipe＜3, anti-stream cover＜4, sealing gasket＜5＜6, fixed cover＜7, fixed screw＜8＜9, nozzle＜10, air door＜11 the combustion gas flameless combustion apparatus formed, it is characterized in that porous ceramic pipe＜2〉be tubular-shaped structures; Tube chamber is built-in with gas mixing pipe＜3 〉; On the pipe lateral wall wire spirality guard＜1 is arranged〉around being the burning radiation face.

2, by the combustion gas flameless combustion apparatus of claim 1 defined, it is characterized in that porous ceramic pipe＜2〉is to be made by combustion gas far-infrared radiation ceramic material; Its tube wall cross section is annular or equilateral annular, thickness of pipe wall 8-14mm; It is that the aperture of 0.8-1.5mm is radial vertical break-through tube wall, aperture pitch 0.5-1.5mm along the die axis that a large amount of honeycomb samples aperture is arranged on the tube wall.

3,, it is characterized in that having on gas mixing pipe＜3〉lateral wall 2 or 2 straight ribs of arranging with upper edge die axis stringer by the combustion gas flameless combustion apparatus of claim 1 defined; Straight rib outer rim closely contacts with porous ceramic pipe＜2〉madial wall.

4, by the combustion gas flameless combustion apparatus of claim 1 defined, it is characterized in that wire spirality guard＜1〉is to be made by metal alloy wires such as siderochrome aluminium or nickel chromium triangles; Wire diameter 0.5-1mm, spiral pitch diameter 5-10mm, screw pitch 2-4mm.

5,, it is characterized in that there is the inside skimmer cone of an awl point at anti-stream cover＜4〉top center place by the combustion gas flameless combustion apparatus of claim 1 defined.

6,, it is characterized in that borrowing between porous ceramic pipe＜2〉two ends and anti-stream cover＜4〉and the fixed cover＜7〉sealing gasket＜5〉＜6〉to form thermal insulation and be tightly connected by the combustion gas flameless combustion apparatus of claim 1 defined.

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