CN216448211U

CN216448211U - Ignition burner

Info

Publication number: CN216448211U
Application number: CN202122652118.0U
Authority: CN
Inventors: 张正凯; 罗浩玮; 郝伟阳; 王永革; 叶永峰; 周靖博; 周权; 陈仲毅; 周锐
Original assignee: Guoneng Shenwan Anqing Power Generation Co ltd
Current assignee: Guoneng Shenwan Anqing Power Generation Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-06
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses an ignition burner which comprises an oil gun, a detection device and a burner, wherein the oil gun comprises a spray head, the spray head is arranged in the burner and is used for spraying flame, the detection device is used for detecting the intensity of the flame, and the detection direction of the detection device is parallel to the direction of the spray head for spraying the flame; the detection direction of the detection device is parallel to the direction of flame sprayed by the spray head, so that the accuracy of flame detection is ensured, the stable operation of the ignition burner is ensured, and the safety and the stability of boiler combustion are further improved.

Description

Ignition burner

Technical Field

The utility model relates to the technical field of ignition equipment, in particular to an ignition burner.

Background

At present, an ignition burner is needed to be used in the starting process of boilers used in some thermal power plants, and a flame detector is often needed to be used for detecting the flame intensity of the ignition burner in the operation process of the ignition burner so as to ensure the safe and stable operation of the boilers.

In the related art, a flame detector is often arranged at the front end of an oil gun nozzle of an ignition burner and used for detecting the flame intensity of the oil gun nozzle, and the detection direction of the flame detector is perpendicular to the direction of flame sprayed by the oil gun nozzle, so that the problem of inaccurate flame detection exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an ignition burner, which aims to solve the technical problem of inaccurate flame detection of the ignition burner in the related art.

In order to solve the problems, the utility model adopts the following technical scheme:

the embodiment of the utility model discloses an ignition burner which comprises an oil gun, a detection device and a burner. Wherein:

the oil gun comprises a spray head, the spray head is arranged in the combustor, and the spray head is used for spraying flame;

the detection device is used for detecting the intensity of the flame, and the detection direction of the detection device is parallel to the direction of the flame sprayed by the spray head.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

according to the ignition burner disclosed by the embodiment of the utility model, the detection direction of the detection device is parallel to the direction of flame sprayed by the spray head, so that the accuracy of flame detection is ensured, the stable operation of the ignition burner is ensured, and the safety and the stability of boiler combustion are further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of schematic structural views of an ignition burner of the embodiment;

FIG. 2 is a second schematic structural view of the ignition burner of the embodiment;

FIG. 3 is a schematic structural view of an installation tube of an embodiment;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

fig. 5 is a cross-sectional view of the mounting tube of the embodiment.

In the figure:

100-oil gun, 110-spray head;

200-detection device, 210-flame detector, 211-flame detector body, 212-probe, 220-mounting tube, 230-three-way tube, 240-wind ring, 241-mounting hole, 242-wind hole, 250-oil gun bracket and 260-wind ring bracket;

300-a burner;

400-bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The ignition burner provided by the embodiment of the present application is described in detail by referring to fig. 1 to 5 through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 5, an ignition burner according to an embodiment of the present invention includes an oil gun 100, a detection device 200, and a burner 300.

The oil gun 100 includes a nozzle 110, the burner 300 has a combustion chamber, and the nozzle 110 is disposed in the combustion chamber of the burner 300. In this embodiment, the oil gun 100 may be a micro oil gun, and after the atomized oil gas injected from the nozzle 110 is ignited, the nozzle 110 injects a flame to ignite the pulverized coal in the boiler.

The detecting device 200 is used for detecting the intensity of the flame, in the embodiment of the present application, the detecting device 200 includes a flame detector 210, and the flame detector 210 may be an ultraviolet flame detector, a visible flame detector, and an infrared flame detector, and the embodiment of the present application is not limited to the specific form of the flame detector 210.

In one embodiment, the detecting device 200 may be an infrared flame detector, the detecting direction of the detecting device 200 is parallel to the direction of the flame sprayed from the nozzle 110, and the infrared rays generated by the combustion of the flame in the burner 300 are transmitted to the detecting device 200, so that the intensity of the flame in the burner 300 can be determined.

According to the ignition burner disclosed by the embodiment of the utility model, the detection direction of the detection device 200 is parallel to the direction of flame sprayed by the spray head 110, so that the accuracy of flame detection is ensured, the stable operation of the ignition burner is ensured, and the safety and the stability of boiler combustion are further improved.

The flame detector 210 comprises a flame detector body 211, a probe 212 and a signal wire, wherein the signal wire can be an optical fiber, the flame detector body 211 is positioned outside the burner 300, the probe 212 is positioned inside the burner 300, the flame detector body 211 is connected with the probe 212 through the optical fiber, and the detection direction of the probe 212 is parallel to the direction of the flame sprayed by the spray head 110.

The test device 200 further comprises a mounting tube 220, a first end of the mounting tube 220 being located outside the burner 300, and a second end of the mounting tube 220 being located inside the burner 300. The flame detector body 211 is connected at the first end, the probe 212 is arranged at the second end, a signal wire connecting the flame detector body 211 and the probe 212 is arranged in the installation pipe 220 in a penetrating way, and the installation pipe 220 can play a role in protecting the signal wire.

In one embodiment, referring to fig. 1 and 3, the mounting tube 220 includes a first section and a second section, the first section and the second section are connected to make the mounting tube 220 in an L-shaped configuration, the first section and the second section are in arc transition, the second section is located in the combustor 300 to provide a mounting base for the probe 212, and the axial direction of the second section is the same as the detection direction of the probe 212, so that the probe 212 can observe the flame sprayed by the nozzle 110, and the interference of the tube wall of the second section on the probe 212 is avoided; further, at least a portion of the first section extends outside the burner 300 and is connected to the flame detector body 211, so that the flame detector 210 can detect the intensity of the flame in the burner 300, the flame detector body 211 can be prevented from being burned by high temperature, and the service life of the flame detector 210 can be prolonged.

In this embodiment, the optical fiber may be a shaped optical fiber, and the shape of the optical fiber in the installation tube 220 is matched with the installation tube 220, so as to increase the rigidity of the optical fiber itself and prolong the service life of the optical fiber.

The ignition burner further comprises an air cooling system which can reduce the surface temperature of the signal wire in the installation pipe 220 and the probe 212 and prolong the service life of the signal wire and the probe 212. In an embodiment, the air cooling system includes wind regime and cooling air pipe, the wind regime provides the cooling air, and the one end of cooling air pipe links to each other with the wind regime, and the other end of cooling air pipe links to each other with installation pipe 220, in order to carry the cooling air that produces wind regime department to installation pipe 220, for installation pipe 220 heat dissipation cooling, and then for optic fibre and probe 212 cooling, guarantees the stability that flame detector 210 used, adopts wind regime and cooling air pipe directly to carry the cooling air for installation pipe 220, has simple structure, the advantage of convenient regulation.

During the use of the ignition burner, the condition that pulverized coal, fuel oil and smoke dust are attached to the probe 212 or the signal line may exist, so that the detection accuracy of the flame detector 210 is influenced, the air cooling system can enable the mounting pipe 220 to be in positive pressure with the spraying combustion cavity of the burner 300, so that impurities such as pulverized coal, fuel oil and smoke dust cannot enter the mounting pipe 220, the cleanness and the non-pollution of the signal line and the probe 212 are guaranteed, and the detection accuracy of the flame detector 210 is guaranteed.

In this embodiment, the first end of the installation pipe 220 is connected to the flame detector body 211, the second end of the installation pipe 220 is used for installing the probe 212, in order to ensure that the cooling wind energy is conveyed into the installation pipe 220 for cooling the signal line and the probe 212, the detection device 200 further comprises a three-way pipe 230, the first end of the three-way pipe 230 is connected to the first end of the installation pipe 220, the second end of the three-way pipe 230 is connected to the flame detector body 211, and the third end of the three-way pipe 230 is connected to the cooling air pipe. So set up, the cooling wind that the wind regime supplied with can be located the inside cooling completely of installation pipe 220 for the signal line.

In one embodiment, the detection apparatus 200 further comprises an air ring 240 disposed at the second end, and the cooling air entering the installation pipe 220 through the tee pipe 230 can be exhausted from the second end of the installation pipe 220 through the air ring 240.

In one embodiment, the probe 212 is connected to the wind ring 240, specifically, a mounting hole 241 is provided in the middle of the wind ring 240, the probe 212 is connected to the mounting hole 241, in this embodiment, the mounting hole 241 is a threaded hole, the probe 212 has an external thread, the probe 212 is in threaded fit with the mounting hole 241, the wind ring 240 provides a mounting base for the probe 212, and the probe 212 can be fixed, so that the normal use of the probe 212 is ensured, and meanwhile, the probe 212 is detachably connected with the wind ring 240 in a threaded connection manner, so that the disassembly, assembly and maintenance are facilitated.

A plurality of air holes 242 are formed in the circumferential side portion of the air ring 240, and the cooling air introduced into the mounting pipe 220 can be discharged through the plurality of air holes 242; a plurality of wind holes 242 distribute along the circumference of wind ring 240, preferably, it is a plurality of wind holes 242 along the circumference evenly distributed of wind ring 240, under the overall arrangement like this, the cooling air can be evenly discharged at the second end of installation pipe 220, promotes the stability of air current and the exhaust efficiency of cooling air, promotes air cooling system's cooling effect, and meanwhile, the temperature uniformity that fibre and probe 212 also can be promoted to the overall arrangement like this.

In one embodiment, the detecting device 200 further includes a wind ring support 260, the wind ring support 260 is installed at the second end of the installation pipe 220, one end of the wind ring support 260 is fixedly connected to the inner side wall of the installation pipe 220, the other end of the wind ring support 260 is connected to the wind ring 240, the wind ring support 260 can fix the wind ring 240, and the wind ring 240 is prevented from sliding in the installation pipe 220, so that the accuracy of the position of the detection point of the probe 212 is ensured, and the accuracy of the detection of the flame detector 210 is prevented from being affected due to the change of the position of the detection point.

In an optional embodiment, the wind ring 240 may be detachably connected to the mounting tube 220, specifically, an outer side wall of the wind ring 240 is provided with an external thread, a second end of the mounting tube 220 is provided with an internal thread, the wind ring 240 is in threaded fit with the mounting tube 220, when the flame detector 210 detects a flame of the oil gun 100, the wind ring 240 is in threaded fit with the mounting tube 220, when the wind ring 240 and the inside of the mounting tube 220 need to be cleaned, the wind ring 240 is screwed out from the mounting tube 220 in a rotating manner, a connection state of the wind ring 240 and the mounting tube 220 is released, and the wind ring 240 and the inside of the mounting tube 220 are conveniently cleaned.

In the embodiment of the present application, the ignition burner further includes a bracket 400, the bracket 400 is connected to the burner 300, the bracket 400 provides a mounting base for the flame detection device 200 and the oil gun 100, and the detection device 200 and the oil gun 100 are respectively connected to the bracket 400.

In the embodiment of the present application, oil gun 100 can be dismantled with support 400 and link to each other, specifically, detection device 200 still includes oil gun support 250, and oil gun support 250's one end links to each other with support 400, and oil gun support 250's the other end supports the second end of installing pipe 220, improves the stability that installation pipe 220 and support 400 are connected, and oil gun support 250 connects oil gun 100 through dismantling the connecting piece, can dismantle the connecting piece can be threaded connection spare, clamp etc.. With such an arrangement, the oil gun 100 can be periodically disassembled for maintenance and cleaning.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims

1. An ignition burner, characterized by comprising an oil gun (100), a detection device (200) and a burner (300); wherein:

the oil gun (100) comprises a spray head (110), the spray head (110) is arranged in the combustor (300), and the spray head (110) is used for spraying flame;

the detection device (200) is used for detecting the intensity of the flame, and the detection direction of the detection device (200) is parallel to the direction of the flame sprayed by the spray head (110).

2. The ignition burner of claim 1, characterized in that the detection device (200) comprises a flame detector (210), the flame detector (210) comprises a flame detector body (211) and a probe (212), the flame detector body (211) is located outside the burner (300), the probe (212) is located inside the burner (300), and the detection direction of the probe (212) is parallel to the direction in which the spray head (110) sprays the flame.

3. The ignition burner of claim 2, wherein the detection device (200) further comprises a mounting tube (220), a first end of the mounting tube (220) is located outside the burner (300), a second end of the mounting tube (220) is located inside the burner (300), the flame detector body (211) is connected to the first end, the probe (212) is located at the second end, and a signal line connecting the flame detector body (211) and the probe (212) is inserted into the mounting tube (220).

4. The ignition burner of claim 3, further comprising an air cooling system, said air cooling system comprising an air source and a cooling air duct, one end of said cooling air duct being connected to said air source, the other end of said cooling air duct being connected to said mounting tube (220).

5. The ignition burner of claim 4, wherein said sensing device (200) further comprises a tee (230), a first end of said tee (230) being connected to a first end of said mounting tube (220), a second end of said tee (230) being connected to said flame detector body (211), and a third end of said tee (230) being connected to said cooling air duct.

6. The ignition burner of claim 4, wherein said sensing device (200) further comprises a wind collar (240), said wind collar (240) being disposed at said second end, cooling air delivered by said cooling air duct being able to exit said second end of said mounting tube (220) through said wind collar (240), said probe (212) being connected to said wind collar (240).

7. The ignition burner as claimed in claim 6, wherein the wind ring (240) is provided at a middle portion thereof with a mounting hole (241), and the probe (212) is connected to the mounting hole (241);

the peripheral side portion of wind ring (240) is provided with a plurality of wind holes (242), and a plurality of wind holes (242) are along the circumference distribution of wind ring (240).

8. The ignition burner of claim 6, wherein said sensing device (200) further comprises a wind ring holder (260), said wind ring holder (260) being disposed within said mounting tube (220) at said second end, said wind ring (240) being supported by said wind ring holder (260).

9. An ignition burner as claimed in any one of claims 3 to 8, characterized in that said ignition burner further comprises a bracket (400), said bracket (400) being connected to said burner (300), said detection means (200) and said oil gun (100) being respectively connected to said bracket (400).

10. The ignition burner as claimed in claim 9, wherein the detection means (200) further comprises an oil gun bracket (250), one end of the oil gun bracket (250) is connected to the bracket (400), the other end of the oil gun bracket (250) supports the second end of the mounting tube (220), and the oil gun (100) is detachably connected to the oil gun bracket (250).