CN210921372U

CN210921372U - Semi-premixed gas burning torch

Info

Publication number: CN210921372U
Application number: CN201920979427.9U
Authority: CN
Inventors: 沈玲玲; 王善荣
Original assignee: Heshuo Zhangjiagang Thermal Energy Equipment Co ltd
Current assignee: Heshuo Zhangjiagang Thermal Energy Equipment Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-07-03
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a semi-premix gas burning torch, including the burning torch sleeve pipe, burning torch sheathed tube front end is uncovered, the rear end passes through the mounting panel and seals, be provided with gas import and some firearm mounting hole on the mounting panel, be provided with in gas import department and stretch into burning torch sheathed tube gas rifle, but be provided with in some firearm mounting hole department and stretch into burning torch sleeve pipe and the some firearm of back-and-forth movement, be provided with combustion-supporting wind import on burning torch sheathed tube rear end lateral wall, install two mixers that are interval distribution around at least in the sheathed tube middle section space of burning torch, be provided with the flame stabilizer in the sheathed tube anterior segment space of burning torch. The utility model has the advantages that: compact structure, simple to operate, it is convenient to dismantle the maintenance, and the ignition reliability is high, and the success rate of igniting is high, and the fire is examined reliably, and flame rigidity is good and flame intensity is high.

Description

Semi-premixed gas burning torch

Technical Field

The utility model relates to a be arranged in large-scale combustion apparatus ignition system technical field in fields such as electric power, petroleum, chemical industry, concretely relates to semi-premix gas burning torch.

Technical Field

In the fields of electric power, petroleum, chemical industry and the like, large-scale combustion equipment must be provided with an ignition gun which is used for ignition or long-time open fire.

The ignition guns used at present have the following problems:

1) ignition instability: once the gas pressure or the compressed air pressure is high, the outlet speed of the spray gun is difficult to control, a high-energy igniter or an ion igniter is difficult to form stable flame, and the ignition success rate is low;

2) insufficient flame rigidity and poor stability: when the load of the boiler changes or the back pressure of a hearth fluctuates from several kPa to dozens of kPa (even hundreds of kPa), the flame stability is poor, so that the fire is easily extinguished or extinguished, the fire detection is unstable, and the interlocking locking is realized;

3) the flame intensity is not sufficient: even if a flame is formed, the flame intensity is not sufficient, and it is difficult to ignite the main flame.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high and high premixed gas burning torch of reliability of igniting success rate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a semi-premixed gas burning torch comprising: ignition gun sleeve pipe, the sheathed tube front end of ignition gun is uncovered, the rear end passes through the mounting panel and seals, be provided with gas import and some firearm mounting hole on the mounting panel, be provided with in gas import department and stretch into the sheathed tube gas gun of ignition gun, but be provided with in some firearm mounting hole department and stretch into the some firearm of ignition gun sleeve pipe and back-and-forth movement, be provided with combustion-supporting wind import on the sheathed tube rear end lateral wall of ignition gun, install two mixers that are interval distribution around at least in the sheathed tube middle section space of ignition gun, be provided with the flame stabilizer in the sheathed tube anterior segment space of ignition gun.

Further, the aforementioned semi-premixed gas burning torch, wherein: two mixers which are distributed at intervals are arranged in the middle space of the sleeve of the ignition gun, wherein the mixer at the rear side is close to the nozzle outlet of the gas gun.

Further, the aforementioned semi-premixed gas burning torch, wherein: the distance between two adjacent mixers is 300-400 mm.

Further, the aforementioned semi-premixed gas burning torch, wherein: the igniter is installed in a whole straight mode, and the ignition end of the igniter is located at the front end of the ignition gun sleeve and close to the inner wall of the ignition gun sleeve.

Further, the aforementioned semi-premixed gas burning torch, wherein: the ignition end of the igniter is plum blossom-shaped.

Further, the aforementioned semi-premixed gas burning torch, wherein: be provided with the fire on the mounting panel of ignition gun sleeve pipe rear end and examine the interface, examine the interface at the fire and be provided with UV flame detector, have inclination between UV flame detector and the ignition gun sleeve pipe, ensure that UV flame detector can detect the root region of ignition flame.

Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: compact structure, simple to operate, it is convenient to dismantle the maintenance, and the ignition reliability is high, and the success rate of igniting is high, and the fire is examined reliably, and flame rigidity is good and flame intensity is high.

Drawings

Fig. 1 is a schematic structural view of a semi-premixed gas burning torch according to the present invention.

Fig. 2 is a schematic diagram of the positional relationship between the igniter and the sleeve of the ignition gun as viewed from the right in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the semi-premixed gas burning torch includes: the ignition gun comprises an ignition gun sleeve 1, wherein the front end of the ignition gun sleeve is open, the rear end of the ignition gun sleeve is sealed through a mounting plate 2, a gas inlet 3 and an igniter mounting hole are formed in the mounting plate 2, a gas gun 4 stretching into the ignition gun sleeve 1 is arranged at the gas inlet 3, an igniter 5 stretching into the ignition gun sleeve 1 and capable of moving back and forth is arranged at the igniter mounting hole, a combustion-supporting air inlet 6 is formed in the side wall of the rear end of the ignition gun sleeve 1, at least two mixers 7 distributed at intervals from front to back are arranged in the middle section space of the ignition gun sleeve 1, and a flame stabilizer 8 is arranged in the front section space of the ignition gun sleeve 1; in the embodiment, two mixers 7 which are distributed at intervals from front to back are installed in the middle space of the ignition gun sleeve 1, wherein the mixer at the rear side is close to the nozzle outlet of the gas gun 4, combustion air and gas are premixed in the middle space of the ignition gun sleeve through the mixer, a single uniform mixed gas flow is gradually formed in the rear space of the ignition gun sleeve, stable flame can be formed after ignition, the flame rigidity is good, the flame intensity is high, and the ignition reliability is ensured; in the embodiment, the distance h between two adjacent mixers 7 is 300-400 mm, and the distance distribution of the mixers can ensure that combustion air and fuel gas are fully and uniformly mixed, so that the ignition reliability is further improved;

in the embodiment, the igniter is installed in a whole straight mode, so that the igniter is convenient to disassemble and assemble; the ignition end of the igniter 5 is positioned at the front end of the ignition gun sleeve 1 and close to the inner wall of the ignition gun sleeve 1, and the igniter is far away from a gas turbulence area, so that the ignition success rate is greatly improved, and the mixture of gas and combustion air is enhanced after ignition, so that flame forms a high-speed injection state and resists the pressure of the back of a boiler furnace;

in the embodiment, a fire detection interface is arranged on the mounting plate 2 at the rear end of the ignition gun sleeve 1, a UV flame detector 9 is arranged at the fire detection interface, and an inclination angle is formed between the UV flame detector 9 and the ignition gun sleeve 1, so that the UV flame detector 9 can detect the root area of ignition flame, and the use safety of equipment can be improved;

when the gas burner is used, gas is sprayed into a gas gun 4 through a gas inlet 3, then is sprayed into the burning torch sleeve 1 through a nozzle of the gas gun 4, meanwhile, combustion-supporting air is sprayed into the burning torch sleeve 1 through a combustion-supporting air inlet 6, the gas and the combustion-supporting air entering the burning torch sleeve 1 can be premixed in the middle section space of the burning torch sleeve 1 in the process of passing through each mixer 7, the premixed combustion-supporting air and the gas can gradually form a single uniform mixed gas flow after reaching the rear section space of the burning torch sleeve 1, then a plum blossom-shaped ignition end of the igniter 5 is ignited, and the formed flame is sprayed out of the burning torch sleeve 1 after being stabilized by a flame stabilizer 8.

The utility model has the advantages that: compact structure, simple to operate, it is convenient to dismantle the maintenance, and the ignition reliability is high, and the success rate of igniting is high, and the fire is examined reliably, and flame rigidity is good and flame intensity is high.

Claims

1. A semi-premixed gas burning torch is characterized in that: including the burning torch sleeve pipe, the sheathed tube front end of burning torch is uncovered, the rear end passes through the mounting panel and seals, be provided with gas import and some firearm mounting hole on the mounting panel, be provided with in gas import department and stretch into the sheathed tube gas gun of burning torch, but be provided with in some firearm mounting hole department and stretch into the some firearm of burning torch sleeve pipe and back-and-forth movement, be provided with combustion-supporting wind import on the sheathed tube rear end lateral wall of burning torch, install two mixers that are interval distribution around at least in the sheathed tube middle section space of burning torch, be provided with the flame stabilizer in the sheathed tube anterior segment space of burning torch.

2. A semi-premixed gas burning torch as claimed in claim 1, wherein: two mixers which are distributed at intervals are arranged in the middle space of the sleeve of the ignition gun, wherein the mixer at the rear side is close to the nozzle outlet of the gas gun.

3. A semi-premixed gas burning torch as claimed in claim 1 or 2, wherein: the distance between two adjacent mixers is 300-400 mm.

4. A semi-premixed gas burning torch as claimed in claim 1, wherein: the igniter is installed in a whole straight mode, and the ignition end of the igniter is located at the front end of the ignition gun sleeve and close to the inner wall of the ignition gun sleeve.

5. A semi-premixed gas burning torch as claimed in claim 4, wherein: the ignition end of the igniter is plum blossom-shaped.

6. A semi-premixed gas burning torch as claimed in claim 1, wherein: be provided with the fire on the mounting panel of ignition gun sleeve pipe rear end and examine the interface, examine the interface at the fire and be provided with UV flame detector, have inclination between UV flame detector and the ignition gun sleeve pipe, ensure that UV flame detector can detect the root region of ignition flame.