CN103292324A

CN103292324A - Premixed type blast combustion device

Info

Publication number: CN103292324A
Application number: CN2012100414101A
Authority: CN
Inventors: 马清飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-23
Filing date: 2012-02-23
Publication date: 2013-09-11

Abstract

The invention belongs to the field of fuel devices, and particularly relates to a premixed type blast combustion device. The premixed type blast combustion device comprises an air chamber, a combustion chamber, a diffusion chamber, a steady flow plate, a gas mixing chamber, an air duct and an air blower, and is characterized in that the gas mixing chamber is wrapped with the air chamber; the diffusion chamber is arranged on the gas mixing chamber; the combustion chamber is arranged in the diffusion chamber; flaming holes are formed in the inner walls of the combustion chamber and the diffusion chamber; the steady flow plate is arranged between the gas mixing chamber and the diffusion chamber; a gas nozzle is located in the center position of the gas mixing chamber; a gas inlet is formed in the gas nozzle, and the gas nozzle stretches out of the air chamber; the air duct is arranged at the lower end of the air chamber; and the air blower is arranged at the rear end of the air duct. With the adoption of premixed type combustion, the fuel can be combusted more rapidly and fully, the flame is short, the flame temperature and the heat efficiency of a combustor are improved, the emission of nitrogen oxides and carbon monoxide is reduced, and problems of insufficient combustion of the fuel, low heat efficiency, high energy consumption and relatively higher emission of the nitrogen oxides and the carbon monoxide due to low local temperatures are solved.

Description

A kind of Blowed premixed combustion apparatus

Technical field:

The invention belongs to the fuel combustion appliance field, relate to a kind of Blowed premixed combustion apparatus specifically.

Background technology:

At present, existing commercial kitchen range air blast burner all is to adopt strong air blast diffusion type combustion technology basically, and fuel combustion is insufficient, and too much heat is also taken away in strong air blast, so the thermal efficiency of this combustion technology is low, and the energy consumption height; Simultaneously, because the coefficient of excess air of diffusion combustion is bigger, local temperature is low, causes carbon monoxide relative with the nitrogen oxide discharge capacity higher, and the pollution that causes and waste are and are big.

Summary of the invention:

The purpose of this invention is to provide a kind of premixed combustion technology that adopts fully, it can make fully burning of combustion gas (fuel oil), flame temperature is up to 1200 degree, flame temperature is even relatively, the carbon monoxide discharge capacity is low, a kind of Blowed premixed combustion apparatus that the nitrogen oxide discharge capacity is low is to overcome above-mentioned deficiency.

The objective of the invention is to be realized by following technical scheme:

A kind of Blowed premixed combustion apparatus, be by the air spray orifice, gas nozzle, air chamber, the combustion chamber, the diffusion chamber, stabilier, gas mixer chamber, fire jetting hole, fuel gas inlet, the air channel, air blast is formed, it is characterized in that: gas mixer chamber is wrapped in the air chamber, gas mixer chamber is provided with the diffusion chamber, the indoor combustion chamber that is provided with of diffusion, combustion chamber and diffusion chamber interior walls are equipped with fire jetting hole, stabilier is installed between gas mixer chamber and the diffusion chamber, gas nozzle is positioned at the gas mixer chamber middle position, fuel gas inlet is installed on the gas nozzle and is stretched out outside the air chamber, the air chamber lower end is provided with the air channel, and the rear end, air channel is installed air blast and constituted a kind of Blowed premixed combustion apparatus;

Described air chamber, combustion chamber, diffusion chamber and gas mixer chamber are hollow structure; Described stabilier 6 is alveolate texture, thickness 6～15mm, and honeycomb hole is: diameter 2～5mm, porosity 20%～50% or reticular lamina structure, the length of side are 1～2mm, porosity 20%～40%.

Advantage of the present invention is:

The present invention compares with burner with existing kitchen range, has the following advantages:

1) improved the thermal efficiency of flame temperature and burner,

The present invention adopts premixed burning fully, and the burning of fuel is also more abundant more fast, and flame is shorter, and the heat that burning produces can fully be released in the bottom of a pan, and flame temperature is even relatively;

2) reduced the discharging of nitrogen oxide and carbon monoxide;

3) stabilier is between mixing chamber and diffusion chamber, and it is more even that gas is mixed, and flow velocity is also more balanced, thereby makes each fire hole fired state of combustion chamber more consistent, can reduce combustion noise and tempering probability effectively;

4) obviously promote the class of product, met the fundamental policy of national energy-saving and emission-reduction, met the cook to demand simple to operation, more met the purpose of using user's solar term to save money.

The invention solves that too much heat is also taken away in insufficient, the strong air blast of fuel combustion, the thermal efficiency is low, energy consumption is high, local temperature is low, cause the problem of carbon monoxide and the relative higher existence of nitrogen oxide discharge capacity.

Description of drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is stabilier structural representation of the present invention.

Be further described below in conjunction with the present invention of embodiment,

The specific embodiment:

Embodiment:

As Fig. 1-shown in Figure 2, a kind of Blowed premixed combustion apparatus of the present invention, be by air spray orifice 1, gas nozzle 2, air chamber 3, combustion chamber 4, diffusion chamber 5, stabilier 6, gas mixer chamber 7, fire jetting hole 8, fuel gas inlet 9, air channel 10, air blast 11 is formed, it is characterized in that: gas mixer chamber 7 is wrapped in the air chamber 3, gas mixer chamber 7 inwalls are equally distributed air spray orifice 1, gas mixer chamber 7 is provided with diffusion chamber 5, be provided with combustion chamber 4 in the diffusion chamber 5, combustion chamber 4 is equipped with fire jetting hole 8 with diffusion chamber 5 inwalls, stabilier 6 is installed between gas mixer chamber 7 and the diffusion chamber 5, gas nozzle 2 is positioned at gas mixer chamber 7 middle positions, fuel gas inlet 9 is installed on the gas nozzle 2 and is stretched out outside the air chamber 3, air chamber 3 lower ends are provided with

air channel

10, and 10 rear ends, air channel are installed air blast 11 and constituted a kind of Blowed premixed combustion apparatus; Described air chamber 3, combustion chamber 4, diffusion chamber 5 are hollow structure with gas mixer chamber 7; Described stabilier 6 is alveolate texture, thickness 6～15mm, and honeycomb hole is: diameter 2～5mm, porosity 20%～50% or reticular lamina structure, the length of side are 1～2mm, porosity 20%～40%; Stabilier 6 is between gas mixer chamber 7 and diffusion chamber 5, and it is more even that gas is mixed, and flow velocity is also more balanced, thereby makes combustion chamber 4 each fire jetting hole 8 fired state more consistent, can reduce combustion noise and tempering probability effectively.

Gas mixer chamber 7 is wrapped in the air chamber 3, and gas mixer chamber 7 inwalls are equally distributed air spray orifice 1, air from around enter gas mixer chamber 7, combustion gas enters gas mixer chamber 7 by central authorities, thus combustion gas and air form strong convection current rapid mixing; After air blast 11 air enter air chamber 3, inwardly spray into gas mixer chamber 7 by air chamber inwall 8; Combustion gas (fuel oil) enters the back and enters gas mixer chamber 7 by gas nozzle 2 to spraying all around, and combustion gas (fuel oil) forms strong convection current with air, thereby mixes rapidly; After the gas that mixes enters diffusion chamber 5, spray into combustion chamber 4 burnings by the fire jetting hole 8 that is positioned on 5 inwalls of diffusion chamber.

Embodiment 1:

As shown in Figure 1, be burning structure schematic diagram provided by the invention, the air that air blast 11 is produced by boasting enters in the air chamber 3 through air channel 10; Air chamber 3 is the hollow shape structure, and inwall still is evenly distributed with air spray orifice 1, after air enters air chamber 3, enters gas mixer chamber 7 via air spray orifice 1; Combustion gas (fuel oil) enters via fuel gas inlet 9, enters mixing chamber through gas nozzle 2; Gas nozzle 2 is positioned at gas mixer chamber 7 middle positions, combustion gas (fuel oil) via gas nozzle 2 to around the ejection, to the centre ejection, combustion gas (fuel oil) forms strong convection current with air to air, thereby can rapid mixing become burning mixture via air spray orifice 1; Enter diffusion chamber 5 behind burning mixture process stabilier 6 further mixing in the gas mixer chamber 7 and the current stabilization, enter combustion chamber 4 burnings via the fire jetting hole that is evenly distributed on 5 inwalls of diffusion chamber then.

Claims

1. Blowed premixed combustion apparatus, be by the air spray orifice, gas nozzle, air chamber, the combustion chamber, the diffusion chamber, stabilier, gas mixer chamber, fire jetting hole, fuel gas inlet, the air channel, air blast is formed, it is characterized in that: gas mixer chamber is wrapped in the air chamber, gas mixer chamber is provided with the diffusion chamber, the indoor combustion chamber that is provided with of diffusion, combustion chamber and diffusion chamber interior walls are equipped with fire jetting hole, stabilier is installed between gas mixer chamber and the diffusion chamber, gas nozzle is positioned at the gas mixer chamber middle position, fuel gas inlet is installed on the gas nozzle and is stretched out outside the air chamber, the air chamber lower end is provided with the air channel, and the rear end, air channel is installed air blast and constituted a kind of Blowed premixed combustion apparatus.

2. a kind of Blowed premixed combustion apparatus according to claim 1, it is characterized in that: described air chamber, combustion chamber, diffusion chamber and gas mixer chamber are hollow structure.

3. a kind of Blowed premixed combustion apparatus according to claim 1 is characterized in that: described stabilier 6 is alveolate texture, thickness 6～15mm, honeycomb hole is: diameter 2～5mm, porosity 20%～50% or reticular lamina structure, the length of side are 1～2mm, porosity 20%～40%.