Fuel gas ignition burning torch

Abstract

The utility model provides an ignition gun for fuel gas ignition. The ignition gun comprises a burner body, an ignition electrode, a fuel gas conveying pipeline and a flame stabilizing device. The flame stabilizing device comprises a fire protection cylinder, a fuel gas inlet distribution disc and a fuel gas secondary distribution disc, and a plurality of hole bodies allowing process air to enter are formed in the cylinder wall of the front half portion of the fire protection cylinder. By the adoption of the technical scheme, the structure is simple and compact, only the gas input connector is arranged, a combustion-supporting air connector is not designed, process air at the front end of the combustor participates in combustion, a combustion-supporting air pipeline is omitted, and the structure of the combustor is simplified. According to the flame stabilizing device at the front end of the ignition gun, fuel gas conveyed from the fuel gas conveying pipeline enters the fire protection barrel through the fuel gas inlet distribution disc, the area of an opening in the fuel gas secondary distribution disc is larger than that of an opening in the fuel gas inlet distribution disc, the flow speed of the fuel gas is further reduced, the fuel gas reaches the stable combustion area range, and the stability of flames is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition guns, in particular to an ignition gun for gas ignition. Background Art

[0002] In combustion equipment, the ignition gun plays an important role. A good ignition gun can greatly improve the application stability of the burner. The ignition gun for gas ignition is mainly used for ignition or long flame of combustion equipment.

[0003] At present, ignition guns with gas ignition are generally equipped with combustion-supporting air channels, but this will inevitably increase the size of the ignition gun. In combustion equipment, the ignition gun is usually required to have a small volume. Therefore, it is urgent to propose a compact gas ignition ignition gun that can establish a stable flame. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a gas ignition ignition gun.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: a gas ignition ignition gun, including a burner body, an ignition electrode, a gas delivery pipeline and a flame stabilization device;

[0006] The burner body has a hole in the middle and a gas input interface is provided on the burner body;

[0007] The gas delivery pipeline is connected to the front end of the burner body;

[0008] The flame stabilization device is connected to the front end of the gas delivery pipeline;

[0009] The rear end of the ignition electrode is connected to the burner body, the ignition electrode runs through the burner body and the gas delivery pipeline, and the front end of the ignition electrode enters the flame stabilization device;

[0010] The flame stabilization device includes a fire protection tube, a gas inlet distribution plate and a gas secondary distribution plate, the gas inlet distribution plate is located at the rear end of the fire protection tube, the gas secondary distribution plate is located in the middle of the fire protection tube, the gas inlet distribution plate is provided with a plurality of first holes that pass through from front to back, the gas secondary distribution plate is provided with a plurality of second holes that pass through from front to back, the area of ​​all the first holes on the gas inlet distribution plate is smaller than the area of ​​the second holes on the gas secondary distribution plate, the front end of the ignition electrode is located at the front side of the gas secondary distribution plate, and the wall of the front half of the fire protection tube is provided with a plurality of third holes for process air to enter.

[0011] The technical solution of the utility model is simple and compact in structure. It only has a gas input interface, but no combustion-supporting air interface is designed. The process wind at the front end of the burner is used to participate in the combustion, thus eliminating the combustion-supporting air pipeline and simplifying the burner structure. The flame stabilization device at the front end of the ignition gun, the gas transported from the gas transmission pipeline enters the flame protection tube through the gas inlet distribution plate, and the opening area on the gas secondary distribution plate is larger than the opening area of ​​the gas inlet distribution plate, so that the gas flow rate is further reduced to reach the stable combustion area, ensuring the stability of the flame.

[0012] Furthermore, a flame disk is provided at the front end of the fire protection tube, and the front end of the ignition electrode is located between the flame disk and the gas secondary distribution disk.

[0013] The above preferred solution is adopted to improve the kinetic energy of the flame spraying outward, which is helpful to establish a stable flame.

[0014] Furthermore, the third hole of the fire protection tube corresponds to the position between the flame disk and the gas secondary distribution disk.

[0015] By adopting the above preferred solution, the process air can fully enter the ignition position.

[0016] Furthermore, the burner body is in the shape of a rectangular parallelepiped and is connected from front to back.

[0017] Furthermore, the rear end of the ignition electrode is connected to the rear end of the burner body via threads.

[0018] Furthermore, the rear end of the gas delivery pipeline is connected to the front end of the burner body via threads.

[0019] The above preferred solution is adopted to facilitate assembly and manufacturing.

[0020] Furthermore, the gas input interface is located on the first side of the burner body, a test port for connecting a test head is opened on the second side of the burner body, the third side of the burner body is marked with a nominal pressure value of the gas for normal operation, and the fourth side of the burner body is marked with a product brand mark.

[0021] By adopting the above preferred solution, the burner body structure is fully utilized to record the ignition gun parameter information.

[0022] Furthermore, the outer walls of the gas inlet distribution plate and the gas secondary distribution plate are provided with a plurality of threaded holes distributed along the circumference, and the gas inlet distribution plate and the gas secondary distribution plate are connected to the fire protection tube via screws.

[0023] The above preferred solution is adopted to facilitate the installation and fixation of the gas inlet distribution plate, the gas secondary distribution plate and the fire protection tube.

[0024] Furthermore, the front side of the gas secondary distribution plate is connected to an ignition electrode fixing cylinder, and the front end of the ignition electrode passes through the gas inlet distribution plate, the gas secondary distribution plate and the ignition electrode fixing cylinder.

[0025] Furthermore, an external thread is provided on the front end outer wall of the gas delivery pipeline, a connecting portion is provided on the rear side of the gas inlet distribution plate, the connecting portion is provided with an internal thread, the gas inlet distribution plate is threadedly connected to the gas delivery pipeline, and a locking nut is also threadedly connected to the front end outer wall of the gas delivery pipeline, and when locking, the front end face of the locking nut contacts the rear end face of the gas inlet distribution plate.

[0026] By adopting the above-mentioned preferred scheme, since the fire protection tube, gas inlet distribution plate, gas secondary distribution plate and ignition electrode fixing tube are combined into a flame stabilizing device, the axial front and rear position of the gas inlet distribution plate in the gas transmission pipeline is adjusted, that is, the front and rear position of the ignition electrode relative to the ignition electrode fixing tube is adjusted, which is convenient for adjusting to a stable spark generating position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The utility model is a structural schematic diagram of a gas ignition ignition gun.

[0029] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0030] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle.

[0031] Figure 4 It is a cross-sectional view of a gas ignition ignition gun of the utility model.

[0032] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle.

[0033] Figure 6 yes Figure 4 A partial enlarged view of point D in the middle.

[0034] Figure 7 It is a schematic diagram of the structure in which the flame stabilizing device hides the fire shield.

[0035] The numbers and letters in the figure represent the names of the corresponding parts:

[0036] 10-burner body; 11-gas input interface; 12-test port; 20-ignition electrode; 30-gas delivery pipeline; 40-flame stabilizing device; 41-gas inlet distribution plate; 411-first hole body; 412-connecting part; 42-gas secondary distribution plate; 421-second hole body; 43-fire protection tube; 431-third hole body; 44-flame plate; 45-screw; 46-tightening nut; 47-ignition electrode fixing tube. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figure 1-7 As shown, one embodiment of the utility model is: a gas ignition ignition gun, including a burner body 10, an ignition electrode 20, a gas delivery pipeline 30 and a flame stabilizing device 40;

[0039] The burner body 10 has an opening in the middle, and a gas input interface 11 is provided on the burner body 10;

[0040] The gas delivery pipeline 30 is connected to the front end of the burner body 10;

[0041] The flame stabilizing device 40 is connected to the front end of the gas delivery pipeline 30;

[0042] The rear end of the ignition electrode 20 is connected to the burner body 10, the ignition electrode 20 penetrates the burner body 10 and the gas delivery pipeline 30, and the front end of the ignition electrode 20 enters the flame stabilization device 40;

[0043] The flame stabilization device 40 includes a fire protection tube 43, a gas inlet distribution plate 41 and a gas secondary distribution plate 42. The gas inlet distribution plate 41 is located at the rear end of the fire protection tube 43, and the gas secondary distribution plate 42 is located in the middle of the fire protection tube 43. The gas inlet distribution plate 41 is provided with a plurality of first holes 411 that pass through the front and back, and the gas secondary distribution plate 42 is provided with a plurality of second holes 421 that pass through the front and back. The area of ​​all the first holes on the gas inlet distribution plate 41 is smaller than the area of ​​all the second holes on the gas secondary distribution plate 42. The front end of the ignition electrode 20 is located at the front side of the gas secondary distribution plate 42. The wall of the front half of the fire protection tube 43 is provided with a plurality of third holes 431 for process air to enter.

[0044] The beneficial effects of adopting the above technical solution are: the structure is simple and compact, there is only a gas input interface, and no combustion-supporting air interface is designed. The process wind at the front end of the burner is used to participate in the combustion, which saves the combustion-supporting air pipeline and simplifies the burner structure. The flame stabilization device at the front end of the ignition gun, the gas transported from the gas transmission pipeline enters the flame protection tube through the gas inlet distribution plate, and the opening area on the gas secondary distribution plate is larger than the opening area of ​​the gas inlet distribution plate, so that the gas flow rate is further reduced to reach the stable combustion area, ensuring the stability of the flame.

[0045] like Figure 5 , 7 As shown, in some other embodiments of the present invention, a flame disk 44 is further provided at the front end of the flame protection tube 43, and the front end of the ignition electrode 20 is located between the flame disk 44 and the gas secondary distribution disk 42. The beneficial effect of adopting the above technical solution is: improving the kinetic energy of the flame spraying, which helps to establish a stable flame.

[0046] like Figure 2 , 5 As shown, in some other embodiments of the present invention, the third hole 431 of the fire protection tube 43 corresponds to the position between the flame disk 44 and the gas secondary distribution disk 42. The beneficial effect of adopting the above technical solution is: the process wind is fully allowed to enter the ignition position.

[0047] like Figure 3 , 6 As shown, in some other embodiments of the utility model, the burner body 10 is in the shape of a cuboid and is connected from front to back. The rear end of the ignition electrode 20 is connected to the rear end of the burner body 10 via a thread. The rear end of the gas delivery pipeline 30 is connected to the front end of the burner body 10 via a thread. The beneficial effect of adopting the above technical solution is that it is easy to assemble and manufacture.

[0048] like Figure 3 As shown, in other embodiments of the utility model, the gas input interface 11 is located on the first side of the burner body 10, a test port 12 for connecting a test head is provided on the second side of the burner body 10, a nominal pressure value of the gas for normal operation is marked on the third side of the burner body 10, and a product brand mark is marked on the fourth side of the burner body 10. The beneficial effect of adopting the above technical solution is: fully utilizing the burner body structure and recording the ignition gun parameter information.

[0049] like Figure 2 , 7As shown, in some other embodiments of the utility model, the outer walls of the gas inlet distribution plate 41 and the gas secondary distribution plate 42 are provided with a plurality of threaded holes distributed along the circumference, and the gas inlet distribution plate 41 and the gas secondary distribution plate 42 are connected to the fire protection tube 43 via screws 45. The beneficial effect of adopting the above technical solution is that it is convenient to install and fix the gas inlet distribution plate and the gas secondary distribution plate to the fire protection tube.

[0050] like Figure 7 As shown, in some other embodiments of the utility model, the front side of the gas secondary distribution disk 42 is connected to the ignition electrode fixing tube 47, and the front end of the ignition electrode 20 passes through the gas inlet distribution disk 41, the gas secondary distribution disk 42 and the ignition electrode fixing tube 47. The front end outer wall of the gas delivery pipeline 30 is provided with an external thread, the rear side of the gas inlet distribution disk 41 is provided with a connecting portion 412, and the connecting portion 412 is provided with an internal thread. The gas inlet distribution disk 41 is threadedly connected to the gas delivery pipeline 30, and the front end outer wall of the gas delivery pipeline 30 is also threadedly connected with a locking nut 46. When locked, the front end face of the locking nut 46 contacts the rear end face of the gas inlet distribution disk 41. The beneficial effect of adopting the above technical solution is that since the flame protection tube, the gas inlet distribution disk, the gas secondary distribution disk and the ignition electrode fixing tube are combined into a flame stabilization device, the axial front and rear position of the gas inlet distribution disk in the gas delivery pipeline is adjusted, that is, the front and rear position of the ignition electrode relative to the ignition electrode fixing tube is adjusted, which is convenient for adjusting to a stable spark generating position.

[0051] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable ordinary technicians in the field to understand the content of the utility model and implement it. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A gas ignition ignition gun, characterized in that: It includes a burner body, an ignition electrode, a gas delivery pipeline and a flame stabilization device; The burner body has a hole in the middle and a gas input interface is provided on the burner body; The gas delivery pipeline is connected to the front end of the burner body; The flame stabilization device is connected to the front end of the gas delivery pipeline; The rear end of the ignition electrode is connected to the burner body, the ignition electrode runs through the burner body and the gas delivery pipeline, and the front end of the ignition electrode enters the flame stabilization device; The flame stabilization device includes a fire protection tube, a gas inlet distribution plate and a gas secondary distribution plate, the gas inlet distribution plate is located at the rear end of the fire protection tube, the gas secondary distribution plate is located in the middle of the fire protection tube, the gas inlet distribution plate is provided with a plurality of first holes that pass through from front to back, the gas secondary distribution plate is provided with a plurality of second holes that pass through from front to back, the area of ​​all the first holes on the gas inlet distribution plate is smaller than the area of ​​all the second holes on the gas secondary distribution plate, the front end of the ignition electrode is located at the front side of the gas secondary distribution plate, and the wall of the front half of the fire protection tube is provided with a plurality of third holes for process air to enter.

2. The gas ignition ignition gun according to claim 1, characterized in that: A flame disk is also provided at the front end of the fire protection tube, and the front end of the ignition electrode is located between the flame disk and the gas secondary distribution disk.

3. The gas ignition ignition gun according to claim 2, characterized in that: The third hole of the fire protection tube corresponds to the position between the flame disk and the gas secondary distribution disk.

4. The gas ignition ignition gun according to claim 1, characterized in that: The burner body is in the shape of a rectangular parallelepiped and is through-connected from front to back.

5. The gas ignition ignition gun according to claim 4, characterized in that: The rear end of the ignition electrode is connected to the rear end of the burner body via threads.

6. The gas ignition ignition gun according to claim 5, characterized in that: The rear end of the gas delivery pipeline is connected to the front end of the burner body via threads.

7. The gas ignition ignition gun according to claim 4, characterized in that: The gas input interface is located on the first side of the burner body, a test port for connecting a test head is opened on the second side of the burner body, the third side of the burner body is marked with a nominal pressure value of the gas for normal operation, and the fourth side of the burner body is marked with a product brand mark.

8. The gas ignition ignition gun according to claim 1, characterized in that: The outer walls of the gas inlet distribution plate and the gas secondary distribution plate are both provided with a plurality of threaded holes distributed along the circumference, and the gas inlet distribution plate and the gas secondary distribution plate are both connected to the fire protection tube via screws.

9. The gas ignition ignition gun according to claim 1, characterized in that: The front side of the gas secondary distribution plate is connected to an ignition electrode fixing cylinder, and the front end of the ignition electrode passes through the gas inlet distribution plate, the gas secondary distribution plate and the ignition electrode fixing cylinder.

10. The gas ignition ignition gun according to claim 9, characterized in that: The front end outer wall of the gas delivery pipeline is provided with an external thread, the rear side of the gas inlet distribution plate is provided with a connecting portion, the connecting portion is provided with an internal thread, the gas inlet distribution plate is threadedly connected to the gas delivery pipeline, and the front end outer wall of the gas delivery pipeline is also threadedly connected with a locking nut, and when locking, the front end face of the locking nut contacts the rear end face of the gas inlet distribution plate.

Images