Injection burner

 

(57) Abstract:

Usage: for burning gaseous fuel. The inventive around the mixer 2 and concentric he posted an electromagnetic system comprising a magnetic circuit 5 with magnitofonnyj windings 6, the outer side of the mixer 2 where it mates with the confuser 1 and the diffuser 3 with the permanent magnets 7, additionally, smesitel 2 equipped with 8 input-output magnetic fluid. 1 C.p. f-crystals, 1 Il.

The invention relates to a device for the combustion of gaseous fuels.

Known injection burners containing consistently located confuser, mixer, diffuser, the gas nozzle installed at the entrance to the confuser [1].

These injection burners ineffective due to insufficient mixing of fuel gas with air, and also because of the impossibility of regulating orifice mixer.

The closest in technical essence to the proposed device is injection burner containing gas nozzle installed at the entrance to the confuser, adjacent to the mixer fitted with the output diffusion-confused nozzle angle Ruslany around the diffusion area of the nozzle and connected to the cavity through the openings, made on the lateral surface of the cone and the axis of these holes is inclined to the axis of the burner at an angle equal to half the opening angle of the cone [2].

This injection burner selected as a prototype.

This burner is ineffective due to insufficient mixing of fuel gas with air, due to a lack turbulization miscible gases and the presence near the walls of the mixer sedentary boundary layer, is not taking part in the processes of mixing, but also because of the impossibility of regulating orifice mixer.

The aim of the present invention is to eliminate these shortcomings in the developed design injection burners.

This goal is achieved by the fact that the injection burner containing consistently located confuser, mixer, diffuser, gazoopa installed at the entrance to the confuser, according to the invention around the mixer and concentric with him is an electromagnetic system comprising a magnetic circuit with multiphase windings, the outer side of the mixer in places of pairing it with the confuser and diffuser installed permanent magnets, in addition, smesitel the wasp and the T-shaped tube, introduced into the cavity of the mixer.

Accommodation around mixer and concentric with him an electromagnetic system comprising a magnetic circuit with multiphase windings, the installation on the outside of the mixer in places of pairing it with the confuser and cone permanent magnets, the supply of the mixer system I / o MF, which may consist of a tank with MF, pump and T-shaped tube, is introduced into the cavity of the mixer - these attributes define the novelty of this technical solution.

Similar technical solutions in the field of devices for burning gaseous fuels us when patent search was not found. This allows you to make a judgment that the proposed device has significant differences.

The drawing shows the injection burner (longitudinal section), equipped with a system I / o MF consisting of a T-shaped tube, pump and tank with MF.

Injection burner contains consistently located confuser 1, a mixer 2, a cone 3, the gas nozzle 4, installed at the entrance to the confuser 1, the magnetic circuit 5 with multiphase windings 6, placed around the mixer 2 and concentric with him the permanent magnets 7, installed on the outer side with FF 8, pump 10 and the T-shaped tube 11 with a valve 12, is introduced into the cavity of the mixer 2. The flow of combustible gas is shown by arrows 13 and the air - arrows 14.

Injection burner works as follows. Winding 6 of the magnetic circuit 5 is connected to the source of multiphase alternating voltage, while the inside of the mixer 2 generates a magnetic field rotating around the longitudinal axis of the mixer 2. Then open the valve 12 and the pump 10 from the tank 9 through the pipe 11 to the inside of the mixer 2 is fed the required number of MFS 8, after which the valve 12 is closed. Inside the mixer 2 MF 8 under the influence of a magnetic field electromagnetic system (5,6) is distributed on the inner walls of the mixer 2 and moves along the field. Through the gas nozzle 4 in the confuser 1 is a combustible gas (see arrow 13), the gas stream injects air (arrow 14), both threads 13 and 14 are in the mixer 2, where begin to mix. Layers flows near the walls of the mixer 2, in contact with a moving surface MF 8, turbulizers, this turbulization forces aerodynamic friction is transmitted to the middle layers of threads 13 and 14, resulting in the mixing of fuel gas and air is considerably accelerated. In addition, the moving surface Psychiat the efficiency of the device. In addition, upon contact with the surface of the breast 8 dust-like impurities contained in the gas and air, wetted with liquid-based MF 8 and linger in her layer, which improves the combustion of the mixture.

For best performance, it is necessary that the field strength inside the mixer exceeded a certain critical value, which depends on the properties of the used MF and existing types of breast achievable. When this condition layer MF 8 will be a non-stationary needle-like structure with a large area of the free surface, which will increase the turbulization and increase the efficiency of gas purification from pollution.

System I / o MF allows you to adjust the flow area of the mixer 2. If necessary to reduce the flow area through the tube 11 when you open the valve 12 from the tank 9 by the pump 10 to the mixer 2 is fed additional breast volume 8, rotating magnetic fields electromagnetic system (5,6) are distributed along the perimeter of the mixer 2, while the flow area of the latter is reduced in proportion to the introduced volume of FF 8. If necessary to reduce the flow area of the mixer 2 from it analnie from the pressure of the combustible gas in the nozzle 4, because the burner has the best efficiency at a certain ratio bore of the mixer 2 and the gas pressure in the nozzle 4. This can be used any electrical or Electromechanical control system.

At the end of the burner first from the mixer 2 by a pump 10 through a pipe 11 FF 8 is pumped into the tank 9, and then the tension is removed from the windings 6 of the magnetic circuit 5.

Permanent magnets 7, placed on the outside of the mixer 2 in places of pairing it with the confuser 3 create inside of the mixer 2 through the edges of the stationary magnetic field. During burner operation, these fields are superimposed on the rotating field created by the electromagnetic system (5, 6); the resulting field is complicated by the nature of the movement MF 8, which increases the degree of turbulence in the gas flow 13 and 14. In addition, the magnetic field of permanent magnets 7 prevent leakage MF 8 remaining in the mixer 2 after the operation of the burner that the confuser 1 and the diffuser 3, and by removing the voltage from the windings 6 in case of emergency on the operating burner.

1. INJECTION BURNER containing consistently located confuser, mixer, diffuser, the gas nozzle installed hiring, including a magnetic circuit with multiphase windings, the outer side of the mixer in its pairing with confuser and diffuser installed permanent magnets, in addition, the mixer is equipped with a system of input-output magnetic fluid.

2. Burner under item 1, characterized in that the system I / o ferrofluid consists of a magnetic fluid tank, pump and T-shaped tube, is introduced into the cavity of the mixer.

 

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