CN201836888U

CN201836888U - Injection burner

Info

Publication number: CN201836888U
Application number: CN2010202921728U
Authority: CN
Inventors: 田仁旭
Original assignee: China MCC5 Group Corp Ltd
Current assignee: China MCC5 Group Corp Ltd
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2011-05-18
Anticipated expiration: 2020-08-16

Abstract

The utility model discloses an injection burner, which belongs to the technical field of gas combustion and mainly solves the problem of low utilization of combustion value of dimethyl ether in the prior art. The injection burner comprises an air pipe and a gas pipe arranged inside the air pipe, wherein the front end of the gas pipe is fixed through a supporting part arranged on the inner wall of the air pipe, an end plate connected with the air pipe is arranged at the rear end of the gas pipe, and an air inlet I is formed on the end plate. The injection burner has the advantages of simple structure, convenience in installation, good using effect and fully embodied combustion value of dimethyl ether; and the injection burner is mainly used for burning of dimethyl ether, can be used for burning of other gases after being slightly improved in size and shape and has high practical value.

Description

Injection burner

Technical field

The utility model relates to gas burner, specifically, relates to a kind of injection burner of dimethyl ether.

Background technology

Dimethyl ether is called for short DME.Under normal pressure, it is a kind of colourless gas or compressed liquid, has slight ether fragrance, relative density (20 ℃) 0.666, fusing point-141.5 ℃, boiling point-24.9 ℃.DME has inertia under the normal temperature, and it can be produced from multiple resources such as coal, natural gas, living beings, and use acts as a fuel.Because the chemical molecular formula of dimethyl ether is C2H6O, can realize the high-efficiency cleaning burning, and cost advantage is arranged therefore very good prospects for application is arranged in communications and transportation, generating, field such as civilian.

But, also do not have special burner at present, when it being acted as a fuel use at dimethyl ether, also only be it to be fed participate in burning in the burner commonly used, its combustion efficiency is poor, and utilization rate is very low, and the burning of dimethyl ether is worth and does not find full expression.

The utility model content

The purpose of this utility model is to provide a kind of injection burner, when realizing the dimethyl ether burning, strengthens dimethyl ether and Air mixing effect, improves its combustion utilization efficiency.

To achieve these goals, the technical solution adopted in the utility model is as follows:

Injection burner comprises air hose, and the Gas Pipe that is arranged at air hose inside, and the Gas Pipe front end is fixed by the support member that is arranged on the air hose inwall, and the rear end is provided with the end plate that is connected with air hose, offers air intlet one on the end plate.

The quantity of above-mentioned air intlet one can change according to actual needs, is traditionally arranged to be 3, and is distributed on the end plate equably.

Further, for implementing convenience, described air hose and Gas Pipe are concentric tubes.

Specifically, above-mentioned air hose comprises straight tube and Taper Pipe, and the less end of straight tube and Taper Pipe diameter is by being welded to connect, and support member is provided with on the straight tube inwall, and end plate is arranged on the bigger end end face of Taper Pipe diameter.

In order to strengthen dimethyl ether and Air mixing effect, also be provided with the spiral spoiler on the described straight tube inwall.The quantity of described spiral spoiler is at least one, and when the quantity of spiral spoiler was at least two, all spiral spoilers were distributed on the straight tube inwall equably.

Offer air intlet two on the sidewall of described Taper Pipe.

For guaranteeing the fixing of Gas Pipe rear end, described end plate and Gas Pipe rear end interference fit.

For forming the jet combustion torch, described Gas Pipe front end termination is welded with gas spray head.

Further, described Gas Pipe rear end extends to the Taper Pipe outside, and an end termination bigger at the Taper Pipe diameter is provided with adjustable plate, this adjustable plate and Gas Pipe rear end tube wall matched in clearance, and its shape and end plate are identical.By the rotation adjustable plate, air mass flow be can regulate, thereby dimethyl ether and Air mixing ratio changed, dimethyl ether is fully burnt, reach optimum utilization.

For making things convenient for the installation of entire equipment, also be provided with flange on the described air hose.

Design principle of the present utility model: at the physics combustion characteristics of dimethyl ether, utilize jet current principle, in dimethyl ether remains on the certain pressure scope, utilize gas of dimethyl ether flow self kinetic energy, around its a fluid stream, produce negative pressure, the combustion air absorption is entered burner, with dimethyl ether mixing after-combustion.

Compared with prior art, the beneficial effects of the utility model are:

1. simple in structure, easy to use, production cost is low;

2. dimethyl ether is in combustion process, and itself and Air mixing effect are strengthened, and mixed proportion has realized adjustable, the utilization rate of dimethyl ether improves greatly, combustion efficiency is guaranteed, and burning is worth and finds full expression, and uses for the market of dimethyl ether and has opened wide prospect.

The utility model is mainly used in gas combustion, and the particularly burning of dimethyl ether has very high practical value.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the B-B of Fig. 1 is to structural representation.

The title of the Reference numeral correspondence in the accompanying drawing: 1-straight tube, 2-Gas Pipe, 3-flange, 4-air intlet one, 5-adjustable plate, 6-gas spray head, 7-spiral spoiler, 8-support member, 9-end plate, 10-air intlet two, 11-Taper Pipe.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment

As shown in Figure 1, 2, injection burner, comprise air hose, and be arranged at the inner and concentric with it Gas Pipe 2 of air hose, Gas Pipe 2 front ends are fixing by the support member 8 that is arranged on the air hose inwall, the rear end is provided with the end plate 9 that is connected with air hose, offers three equally distributed air intlets 1 on the end plate 9.

Specifically, described air hose comprises straight tube 1 and Taper Pipe 11, and the less end of straight tube 1 and Taper Pipe 11 diameters is by being welded to connect, and support member 8 is provided with on straight tube 1 inwall, and end plate 9 is arranged on the bigger end end face of Taper Pipe 11 diameters.

In order to strengthen dimethyl ether and Air mixing effect, also be provided with spiral spoiler 7 on described straight tube 1 inwall, its quantity is at least two, and all spiral spoilers 7 are distributed on straight tube 1 inwall equably.

In order to prevent the air mass flow deficiency of air intlet 1, cause the combustion rate of dimethyl ether to descend, also offer air intlet 2 10 on the sidewall of described Taper Pipe 11.Air intlet 2 10 can be provided with switch, only just opens and uses under the situation of needs.

Be fixing Gas Pipe rear end, described end plate 9 and Gas Pipe 2 rear end interference fit.

Described Gas Pipe 2 front end terminations are welded with gas spray head 6, are used to form the jet combustion torch.

Described Gas Pipe 2 rear ends extend to Taper Pipe 11 outsides, and an end termination bigger at Taper Pipe 11 diameters is provided with adjustable plate 5, this adjustable plate 5 and Gas Pipe 2 rear end tube wall matched in clearance, and its shape and end plate 9 are identical.By rotation adjustable plate 5, can change dimethyl ether and Air mixing ratio, make both ratios reach the optimum air coefficient of excess that dimethyl ether burns, dimethyl ether is realized fully burning, its utilization rate reaches the highest.

For making things convenient for the installation of burner, also be provided with flange 3 on the described air hose.

Use of the present utility model: at first in Gas Pipe, continue to feed dimethyl ether with certain pressure, dimethyl ether is when leaving gas spray head and enter air hose, because dimethyl ether self kinetic energy, to around the dimethyl ether a fluid stream, produce negative pressure, drive the air hose air outside and enter air hose inside from air intlet one, along with moving on of dimethyl ether and air, the effect of the spiral spoiler on the straight tube inwall will be subjected to being arranged at, dimethyl ether is fully mixed with air, finally run into kindling material burning back and form stable torch.In use, the rotatable adjustable plate of staff enters the interior air mass flow of air hose by changing the on off state of air intlet one, regulating, thereby changes dimethyl ether and Air mixing ratio, makes dimethyl ether reach best combustion efficiency.Simultaneously, can also open air intlet two as required, increase the air mass flow that enters air hose inside.

According to the foregoing description, just can realize the utility model well.

Claims

1. injection burner, it is characterized in that, comprise air hose, and the Gas Pipe (2) that is arranged at air hose inside, Gas Pipe (2) front end is fixing by the support member (8) that is arranged on the air hose inwall, the rear end is provided with the end plate (9) that is connected with air hose, offers air intlet one (4) on the end plate (9).

2. injection burner according to claim 1 is characterized in that, described air hose and Gas Pipe (2) are concentric tubes.

3. injection burner according to claim 2, it is characterized in that, described air hose comprises straight tube (1) and Taper Pipe (11), the less end of straight tube (1) and Taper Pipe (11) diameter is by being welded to connect, support member (8) is provided with on straight tube (1) inwall, and end plate (9) is arranged on the bigger end end face of Taper Pipe (11) diameter.

4. injection burner according to claim 3 is characterized in that, also is provided with spiral spoiler (7) on described straight tube (1) inwall.

5. injection burner according to claim 4 is characterized in that, the quantity of described spiral spoiler (7) is at least one.

6. injection burner according to claim 4 is characterized in that, the quantity of described spiral spoiler (7) is at least two, and all spiral spoilers are distributed on straight tube (1) inwall equably.

7. injection burner according to claim 6 is characterized in that, offers air intlet two (10) on the sidewall of described Taper Pipe (11).

8. according to claim 1 or 7 described injection burners, it is characterized in that described end plate (9) and Gas Pipe (2) rear end interference fit.

9. injection burner according to claim 3 is characterized in that, described Gas Pipe (2) front end termination is welded with gas spray head (6).

10. according to claim 3 or 9 described injection burners, it is characterized in that, described Gas Pipe (2) rear end extends to Taper Pipe (11) outside, an end termination bigger at Taper Pipe (11) diameter is provided with adjustable plate (5), this adjustable plate (5) and Gas Pipe (2) rear end tube wall matched in clearance, its shape and end plate (9) are identical.

11. injection burner according to claim 10 is characterized in that, also is provided with flange (3) on the described air hose.