CN219199171U

CN219199171U - Injection type pilot lamp

Info

Publication number: CN219199171U
Application number: CN202223283847.4U
Authority: CN
Inventors: 杨瑞; 刘继思; 高威
Original assignee: Guizhou Wisdom Energy Technology Co ltd
Current assignee: Guizhou Wisdom Energy Technology Co ltd
Priority date: 2022-01-26
Filing date: 2022-12-07
Publication date: 2023-06-16
Anticipated expiration: 2032-12-07

Abstract

The utility model provides an injection type pilot burner which is characterized in that a nozzle and a base are processed in a split mode, the nozzle and the base are connected in a detachable mode, the nozzle is convenient to replace and maintain, and the base is fixedly connected with an injection mixing pipe. And a sealing gasket is arranged between the nozzle and the base, so that the sealing performance of the nozzle structure is ensured. By the design, the size of the nozzle can be reduced, the control accuracy of fuel handling capacity is improved, the inner hole machining difficulty is reduced, and meanwhile, the replaceability of the nozzle is realized. The nozzle of the injection type pilot burner has the advantages of simple structural design, convenience in disassembly and assembly, stable structure, reduction in processing cost, convenience in replacement and maintenance, and great saving in manpower and material resources.

Description

Injection type pilot lamp

Technical Field

The utility model relates to a pilot lamp structure, in particular to an injection pilot lamp.

Background

The waste gas generated in the current oil gas exploitation process is difficult to recycle, and is discharged to a high altitude torch or a ground torch for combustion treatment. The high altitude torch and the ground torch are used for igniting the pilot burner (pilot burner head) and the pilot burner is used for igniting the exhaust gas when the exhaust gas is discharged. Most of the existing pilot lamps are air injection type, and natural gas is premixed and combusted. The existing pilot lamp fuel nozzle and the base are integrally formed and welded on the pilot lamp fuel pipeline. Because the nozzle size is smaller, the integrated processing difficulty is larger, and the yield is low. The fuel flow rate at the outlet of the nozzle is high, and the nozzle becomes a wearing part due to a certain scouring effect, but the nozzle is welded on a fuel gas pipeline at present and cannot be replaced simply.

Therefore, how to solve the problem of difficulty in processing the nozzle itself and to achieve the problem of replaceability of the nozzle is one of the research directions of those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides an injection type pilot burner which can effectively solve the above problems.

The utility model provides an injection type pilot burner which comprises an injection mixing pipe and a nozzle structure, wherein the nozzle structure comprises a base and a nozzle, the base is fixedly connected with the injection mixing pipe, and the nozzle is detachably connected to the base.

In an embodiment, the injection mixing pipe is provided with an air inlet and an air outlet, the nozzle structure is arranged at the air inlet, and a flame stabilizing burner is arranged at the air outlet.

In an embodiment, a first connecting portion is disposed at one end of the nozzle connected with the base, a second connecting portion is disposed at one end of the base connected with the nozzle, and the first connecting portion and the second connecting portion are detachably connected in a threaded connection mode.

In an embodiment, the nozzle includes a nozzle base, the first connection portion extending from the nozzle base toward the base, and a nozzle head extending from the nozzle base toward a direction away from the base, and a first flow passage penetrating the nozzle head, the nozzle base, and the first connection portion is formed in the nozzle.

In one embodiment, the first flow passage has a first inlet end and a first outlet end, the first inlet end having a cross-sectional area greater than a cross-sectional area of the first outlet end.

In an embodiment, the second connecting portion is a groove formed in one side of the base, facing the nozzle, an external thread is formed on an outer wall surface of the first connecting portion, and an internal thread matched with the external thread is formed on an inner wall surface of the groove.

In one embodiment, a second flow passage is formed in the base, and the second flow passage is communicated with the first flow passage.

In an embodiment, the second flow channel has a second inlet end and a second outlet end, the second inlet end having a cross-sectional area greater than the cross-sectional area of the second outlet end.

In one embodiment, a sealing gasket is arranged between the nozzle and the base; and/or wrench positions are arranged on the side walls of the nozzle base body.

In an embodiment, a side of the nozzle base body facing the base is provided with a containing groove around the first connecting portion, and the sealing gasket is arranged in the containing groove.

In summary, the injection type pilot burner provided by the utility model is characterized in that the nozzle and the base are processed separately, the nozzle and the base are connected in a detachable manner, the replacement and maintenance of the nozzle are facilitated, and the base and the injection mixing pipe are fixedly connected. And a sealing gasket is arranged between the nozzle and the base, so that the sealing performance of the nozzle structure is ensured. By the design, the size of the nozzle can be reduced, the control accuracy of fuel handling capacity is improved, the inner hole machining difficulty is reduced, and meanwhile, the replaceability of the nozzle is realized. The nozzle of the injection type pilot burner has the advantages of simple structural design, convenience in disassembly and assembly, stable structure, reduction in processing cost, convenience in replacement and maintenance, and great saving in manpower and material resources.

Drawings

Fig. 1 is a schematic perspective view of an injection type pilot burner of the present utility model.

Fig. 2 is a cross-sectional view of the ejector pilot lamp of fig. 1.

Fig. 3 is a schematic perspective view of the nozzle structure of fig. 1.

Fig. 4 is an exploded view of the nozzle structure of fig. 3 at an angle.

Fig. 5 is an exploded view of the nozzle structure of fig. 3 at another angle.

Fig. 6 is a cross-sectional view of the nozzle structure of fig. 3.

Detailed Description

Before the embodiments are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The utility model is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of the terms "comprising," "including," "having," and the like are intended to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present utility model is not limited to the number of the element as one, but may include a plurality of the elements.

As shown in fig. 1-2, the utility model provides an injection type pilot burner 1, which comprises an injection mixing pipe 2, a nozzle structure 10, a flame stabilizing burner 3 and an ignition device 4, wherein the injection mixing pipe 2 is provided with an air inlet 5 and an air outlet 6, the nozzle structure 10 is arranged at the air inlet 5 and is used for inputting fuel for the injection type pilot burner 1, for example, the nozzle structure 10 is inserted into the injection mixing pipe 2 from the air inlet 5 and is connected and fixed with the injection mixing pipe 2, the flame stabilizing burner 3 is arranged at the air outlet 6 and has the functions of wind prevention and flame stabilization, and the ignition device 4 is fixedly arranged on the flame stabilizing burner 3 so as to ignite the injection type pilot burner 1.

A plurality of injection holes 7 are uniformly formed in the side wall, close to one end of the air inlet 5, of the injection mixing pipe 2 along the circumferential direction, and the injection holes 7 are used for injecting air. In the illustrated embodiment, the injection hole 7 is provided as a waist-shaped hole having two opposite long sides, both ends of the two long sides being connected by an arc-shaped side, and the length direction of the waist-shaped hole being parallel to the axial direction of the injection mixing tube 2.

Referring to fig. 3 to 6, the nozzle structure 10 includes a base 12 and a nozzle 14, the nozzle 14 is detachably connected to the base 12, and the base 12 is fixedly connected to the ejector mixing tube 2. In this embodiment, both the base 12 and the nozzle 14 are circular. The detachable connection mode is various, for example, threaded connection, screw fixed connection and the like. In this embodiment, the nozzle 14 is detachably connected to the base 12 by a threaded connection.

The base 12 can be connected to the bottom of the injection mixing pipe 2 through the spigot 40, and after connection, the side wall surface of the spigot 40 is attached to the inner wall surface of the injection mixing pipe 2, and the bottom surface of the spigot 40 is abutted to the bottom surface of the injection mixing pipe 2. The nozzle 14 is located in the ejector mixing tube 2, and the base 12 is fixedly connected with the ejector mixing tube 2 through a screw hole 42 by using bolts, so that the nozzle structure 10 is fixed on the ejector mixing tube 2. In other embodiments, the nozzle arrangement 10 may be secured to the ejector mixing tube 2 by other securing arrangements.

Specifically, a first connecting portion 16 is disposed at an end of the nozzle 14 connected to the base 12, a second connecting portion is disposed at an end of the base 12 connected to the nozzle 14, and the first connecting portion 16 and the second connecting portion are detachably connected through threaded connection.

Further, the nozzle 14 includes a nozzle base 20, a first connecting portion 16 formed extending from the nozzle base 20 toward the base 12, and a nozzle head 22 formed extending from the nozzle base 20 toward a direction away from the base 12, the nozzle head 22 being, for example, cone-shaped, the outer diameter of the nozzle base 20 being larger than the outer diameters of the first connecting portion 16 and the nozzle head 22. Preferably, the nozzle base 20, the first connecting portion 16 and the nozzle head 22 are integrally formed, and the first connecting portion 16 and the nozzle head 22 are located at a central portion of the nozzle base 20.

The nozzle 14 has a first flow passage 24 formed therein through the nozzle head 22, the nozzle base 20, and the first connection portion 16, the first flow passage 24 having a first inlet end 26 and a first outlet end 28, the first inlet end 26 having a larger cross-sectional area than the first outlet end 28. Specifically, the first flow channel 24 includes a first section flow channel, a second section flow channel and a third section flow channel from the first air inlet end 26 to the first air outlet end 28, wherein the first section flow channel and the third section flow channel are both cylindrical, the second section flow channel is conical, and the cross-sectional area of the first section flow channel is larger than the cross-sectional area of the third section flow channel.

In the illustrated embodiment, the second connecting portion is a groove 18 disposed on a side of the base 12 facing the nozzle 14, an external thread 30 is disposed on an outer wall surface of the first connecting portion 16, an internal thread 32 in threaded engagement with the external thread 30 is disposed on an inner wall of the groove 18, so that the first connecting portion 16 can be connected in the groove 18 in a threaded manner, and a bottom surface of the nozzle base 20 is attached to a top surface of the base 12. Preferably, the recess 18 is provided in a central portion of the base 12.

A second flow passage 34 is formed through the base 12, the second flow passage 34 being in communication with the recess 18, thereby allowing the second flow passage 34 to communicate with the first flow passage 24. The second flow passage 34 has a second inlet end 36 and a second outlet end 38, the second inlet end 36 having a cross-sectional area greater than the cross-sectional area of the second outlet end 38. Specifically, the second flow passage 34 includes, from the second air inlet end 36 to the second air outlet end 38, a fourth flow passage, a fifth flow passage and a sixth flow passage, where the fourth flow passage and the sixth flow passage are both cylindrical, the fifth flow passage is conical, the cross-sectional area of the fourth flow passage is greater than the cross-sectional area of the sixth flow passage, and the cross-sectional area of the sixth flow passage is greater than or equal to the cross-sectional area of the first flow passage.

Further, the outer diameter of the base 12 is larger than the outer diameter of the nozzle 14, a spigot 40 is formed on the upper side of the side wall of the base 12, and a plurality of screw holes 42 are formed on the side wall of the spigot 40, for example, the screw holes 42 are uniformly distributed along the circumferential direction.

In the illustrated embodiment, a sealing gasket 44 is also provided between the nozzle 14 and the base 12 to ensure a leak-tight connection between the nozzle 14 and the base 12, preventing gas leakage. Preferably, the side of the nozzle base 20 facing the base 12 is provided with a receiving groove 46 around the first connecting portion 16, and the sealing gasket 44 is disposed in the receiving groove 46, for example, the sealing gasket 44 is snapped into the receiving groove 46.

Preferably, wrench tabs 48 are also provided on the side walls of the nozzle base 20 to facilitate removal and installation of the nozzle 14.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed are illustrative and not restrictive. The scope of the utility model is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The injection type pilot burner is characterized by comprising an injection mixing pipe and a nozzle structure, wherein the nozzle structure comprises a base and a nozzle, the base is fixedly connected with the injection mixing pipe, and the nozzle is detachably connected to the base; the nozzle comprises a nozzle base body, a first connecting part and a nozzle head, wherein the first connecting part is formed by extending from the nozzle base body towards the direction of the base, the nozzle head is formed by extending from the nozzle base body towards the direction away from the base, and a first flow passage penetrating through the nozzle head, the nozzle base body and the first connecting part is formed in the nozzle.

2. The ejector pilot burner of claim 1, wherein the ejector mixing tube has an air inlet and an air outlet, the nozzle structure is disposed at the air inlet, and a flame stabilizing burner is disposed at the air outlet.

3. The injection type pilot lamp according to claim 1, wherein the first connecting portion is arranged at one end of the nozzle base body connected with the base, a second connecting portion is arranged at one end of the base connected with the nozzle, and the first connecting portion and the second connecting portion are detachably connected in a threaded connection mode.

4. A pilot burner as claimed in claim 3, wherein the first flow passage has a first inlet end and a first outlet end, the first inlet end having a cross-sectional area greater than the cross-sectional area of the first outlet end.

5. The injection type pilot lamp according to claim 3, wherein the second connecting portion is a groove formed in one side of the base, facing the nozzle, an external thread is formed on an outer wall surface of the first connecting portion, and an internal thread matched with the external thread is formed on an inner wall surface of the groove.

6. An ejector lamp according to claim 5, wherein a second flow passage is formed in the base, the second flow passage communicating with the first flow passage.

7. An ejector pilot lamp according to claim 6, wherein the second flow passage has a second inlet end and a second outlet end, the second inlet end having a cross-sectional area greater than the cross-sectional area of the second outlet end.

8. An ejector pilot lamp according to claim 3, wherein a sealing gasket is provided between the nozzle and the base; and/or

And a wrench position is arranged on the side wall of the nozzle base body.

9. The injection type pilot lamp of claim 8, wherein a side of the nozzle base body facing the base is provided with a containing groove around the first connecting portion, and the sealing gasket is arranged in the containing groove.