CN201129748Y

CN201129748Y - Industry combusting device igniting gun

Info

Publication number: CN201129748Y
Application number: CNU2007200738181U
Authority: CN
Inventors: 肖江东
Original assignee: SHANGHAI NUOTEFEIBO COMBUSTION EQUIPMENT CO Ltd
Current assignee: Shanghai Nuotefeibo Combustion Equipment Co., Ltd.
Priority date: 2007-08-20
Filing date: 2007-08-20
Publication date: 2008-10-08
Anticipated expiration: 2017-08-20

Abstract

The utility model relates to a burning torch of an industrial burner, which is equipped with a central pipe, an external stent, a burning electrode, an insulator bracket and a transitional connector, wherein the insulator bracket is equipped with a central installing hole and an airflow hole, a metal pipe shell of the central pipe is connected with a burning high pressure generating device, a burning torch head nozzle block with an inclined orifice is arranged on the front end portion, the metal pipe wall of the external stent is equipped with a combustion-supporting air inlet pipe, and the central pipe which is limited by the insulator bracket is extended in the casing pipe. When working, the metal shell of the central pipe is used as a cathode, the metal shell of the external stent is used as a grounding anode, the inner portion of the central pipe is a gas furl channel, a combustion-supporting air channel is arranged between the central pipe and the external stent pipe, after entering the central pipe, the gas fuel is sprayed in multi-strand diverging shapes through the inclined orifice on the nozzle block, after one of the multi-strand diverging shapes is burned by a discharge spark, the other multi-strand diverging shapes are burned, thereby forming a thicker and longer firing torch. The utility model has the advantages of simple and reasonable structure, reliable operation and long service life and the like, and the practicality is very strong.

Description

A kind of ignition gun for industrial combustor

Technical field

The utility model relates to the gas combustion technical field, and particularly a kind of have an ignition gun for industrial combustor that job stability is strong, can produce the reliable ignition torch.

Background technology

At present, employed burning torch has two classes on the industrial burner:

One class is a band combustion air formula, mainly form by the insulating support of central tube, outer tube, ignitor, high-voltage conducting wires and band center mounting hole and airflow hole, central tube is spacing by the center mounting hole on the insulating support, suit is arranged in the overcoat tube chamber, high-voltage conducting wires is laid in the chamber between central tube and the outer tube, the one end is electrically connected with the igniting high-voltage generator, the other end and ignitor are electrically connected, and ignitor is played the insulating support of isolated insulation effect and is made by ceramic material.During work, central tube inside is fuel gas passage, is logical combustion air passage between central tube and the outer tube.

Another kind of is not to be with the combustion air formula, mainly is made up of gas supply pipe, high-voltage conducting wires, ignitor and insulating support.Air supply pipe is as fuel gas passage, and is laid with high-voltage conducting wires, and an end of high-voltage conducting wires is electrically connected with the igniting high-voltage generator, the other end and ignitor are electrically connected, and ignitor is played the insulating support of isolated insulation effect and is made by ceramic material.

These two kinds of burning torches are single hole for the gas ignition mode, and lighting-off torch is little, during work through the unsuccessful situation of regular meeting's origination point fire; And all adopt the ceramic material insulating support, easily in transit with installation process in the shaken situation of damage.Thereby have the weak point of constant product quality and functional reliability difference generally, consider all to owe desirable from security, economy and point of view of practicability.

Summary of the invention

The purpose of this utility model is in order to overcome the weak point of existing burning torch, the ignition gun for industrial combustor that a kind of product quality guarantees easily, functional reliability by force, also can produce the reliable ignition torch to be provided.

Ignition gun for industrial combustor main body of the present utility model includes central tube, outer tube, ignitor, high-voltage conducting wires, insulating support and transition piece, and wherein: insulating support is made by polytetrafluoroethylene (PTFE), is provided with center mounting hole and airflow hole above; Central tube is made by refractory metal material, and its tube wall is electrically connected with the igniting high-voltage generator, and leading section is provided with the ignitor of band burning torch head; The main body of described burning torch head is a nozzle block, be provided with above 2-6 with 30 °-60 ° inclinations, be the skewed spray orifice that outwards disperse at the center; Outer tube is made by refractory metal material, and tube wall is provided with the combustion air inlet pipe; Transition piece is provided with the combustion gas inlet port.

In addition, described insulating support can be provided with more than 2 as required at least, and the diameter of the center mounting hole on the described insulating support conforms to the assembling of the external diameter of central tube; The external diameter of described insulating support conforms to the assembling of the internal diameter of outer tube.

Under confined state, described central tube is spacing by the center mounting hole on the insulating support, stretch and put outside in the casing cavity, and the tail end of central tube and outer tube is all spacing to be arranged on the transition piece.During work, by filling the post of the work positive pole with the central tube metal shell that is electrically connected of igniting high-voltage generator, the metal shell of outer tube is filled the post of the ground connection negative pole, central tube inside is as fuel gas passage, lacuna between central tube and outer tube is as the combustion air passage, the gaseous fuel that enters in the central tube is the ejection of multiply divergent shape behind the skewed spray orifice on the nozzle block, the electric spark that is produced by electrode discharge is lighted other each strands that promptly ignite behind wherein one earlier, form thick long lighting-off torch, guarantee ignition success rate, under the situation that igniting high-voltage generator power does not increase, increased the thermal power of burning torch big.

The utility model ignition gun for industrial combustor based on above-mentioned design, because the spray orifice setting on the burning torch head is with the outside divergent shape of the form of several angling holes, angling hole quantity is set and the angle of inclination all can be adjusted as required, can be satisfied the different application demand, the version and the working method that adopt several angling holes and different inclination angle outwards to disperse injection help producing the torch that can assure success and light a fire, changed thoroughly that burning torch torch shape was single in the past, coverage is narrow, the situation that ignition success rate is not high; In addition, central tube and outer tube are directly filled the post of working electrode, not only simplified product structure, but also be convenient to make; The insulating support that is provided with between outer tube and central tube is made by polytetrafluoroethylene (PTFE), helps improving the functional reliability of product, guarantees shipping goods quality and increases the service life.In sum, ignition gun for industrial combustor of the present utility model has tangible technical advance, the reliability in structural reasonability, the use, thereby have significant practicality, security and economy.

Description of drawings

Fig. 1 is the general structure schematic diagram of the utility model embodiment;

Fig. 2 is the internal structure schematic diagram of burning torch head among the utility model embodiment;

Fig. 3 is the end view of burning torch head among Fig. 2;

Fig. 4 is the internal structure schematic diagram of insulating support among the utility model embodiment;

Fig. 5 is the end view of insulating support among Fig. 4.

Among the figure:

1. central tube 2. outer tubes 3. transition pieces 4. insulating supports

5. center mounting hole 6. airflow holes 7. igniting high-voltage generators 8. burning torch heads

9. combustion air inlet pipe 10. nozzle block 11. skewed spray orifice 12. tube walls

13. fuel gas passage 14. combustion air passages 15. combustion gas inlet ports

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.

In Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, ignition gun for industrial combustor main body of the present utility model includes central tube 1, outer tube 2, ignitor, high-voltage conducting wires, transition piece 3 and insulating support 4, wherein: insulating support 4 is made by polytetrafluoroethylene (PTFE), is provided with center mounting hole 5 and airflow hole 6 above; Central tube 1 is made by stainless steel material, its tube wall 12 is electrically connected with igniting high-voltage generator 7, leading section is provided with the ignitor of band burning torch head 8, and the main body of burning torch head 8 is a nozzle block 10, be provided with above 4 with 45 ° of inclinations, be the skewed spray orifice of outwards dispersing by the center 11; Outer tube 2 is made by stainless steel material, and its tube wall is provided with combustion air inlet pipe 9; Transition piece 3 is provided with combustion gas inlet port 15.

In addition, described insulating support 4 is provided with 2 as required, and the diameter of the center mounting hole 5 on it conforms to the assembling of the external diameter of central tube 1; The external diameter of described insulating support 4 conforms to the internal diameter assembling of outer tube 2.

Under confined state, central tube 1 is 5 spacing by the center mounting hole on the insulating support 4, stretch and put in the chamber of outer tube 2, and the tail end of central tube 1 and outer tube 2 is all spacing to be arranged on the transition piece 3.During work, by the metal pipe-wall on the central tube 1 12 as being connected in high-voltage conducting wires between igniting high-voltage generator 7 and ignitor, filling the post of the work positive pole, the metal pipe-wall of outer tube 2 is filled the post of the ground connection negative pole, central tube 1 inside is as fuel gas passage 13, the lacuna that central tube 1 and outer tube are 2 is as logical combustion air passage 14, gaseous fuel is the divergent shape ejection from skewed spray orifice 11, and the electrical spark working that produces during by electrode discharge forms thick long lighting-off torch to light.

Claims

1. an ignition gun for industrial combustor includes central tube (1), outer tube (2), ignitor, high-voltage conducting wires, transition piece (3) and insulating support (4), it is characterized in that:

A. insulating support (4) is made by polytetrafluoroethylene (PTFE), is provided with center mounting hole (5) and airflow hole (6) above;

B. central tube (1) is made by refractory metal material, and its tube wall (12) is electrically connected with igniting high-voltage generator (7), and leading section is provided with the ignitor of band burning torch head (8);

C. the main body of burning torch head (8) is nozzle block (10), be provided with above 2-6 with 30 °-60 ° inclinations, be the skewed spray orifice of outwards dispersing at the center (11);

D. outer tube (2) is made by refractory metal material, and tube wall is provided with combustion air inlet pipe (9);

E. transition piece (3) is provided with combustion gas inlet port (15).

2. ignition gun for industrial combustor according to claim 1 is characterized in that described insulating support (4) is provided with more than 2 at least.

3. ignition gun for industrial combustor according to claim 1 is characterized in that the diameter of the center mounting hole (5) on the described insulating support (4) conforms to the external diameter assembling of central tube (1).

4. ignition gun for industrial combustor according to claim 1 is characterized in that the external diameter of described insulating support (4) conforms to the internal diameter assembling of outer tube (2).

5. ignition gun for industrial combustor according to claim 1 is characterized in that described central tube (1) is spacing by the center mounting hole (5) on the insulating support (4), stretches and put in the chamber of outer tube (2).

6. ignition gun for industrial combustor according to claim 1 is characterized in that all spacing being arranged on the transition piece (3) of tail end of described central tube (1) and outer tube (2).

7. ignition gun for industrial combustor according to claim 1 is characterized in that the positive pole of described ignitor is filled the post of by the tube wall (12) of central tube (1), and the ground connection negative pole is filled the post of by the metal pipe-wall of outer tube (2).