CN220355400U

CN220355400U - Oil combustion device and pulverized coal combustion device

Info

Publication number: CN220355400U
Application number: CN202321628825.9U
Authority: CN
Inventors: 王鹏; 王秋粉; 任志鹏; 蔡巍; 胡利杰; 宋浩
Original assignee: Yantai Longyuan Power Technology Co Ltd
Current assignee: Yantai Longyuan Power Technology Co Ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2024-01-16
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses an oil combustion device which is used for being installed on a pulverized coal burner and comprises an installation pipeline; the installation pipeline comprises a first cylinder and a second cylinder, and an included angle larger than 0 DEG is formed between the first cylinder and the second cylinder; the inside of installation pipeline forms the combustion chamber that is used for holding oil gun and ignition rifle, is provided with the ignition in the combustion chamber and assists the pipe, and oil gun and ignition rifle are used for setting up in the ignition and assist the intraductal. The oil combustion device disclosed by the utility model improves the efficiency and safety of pulverized coal combustion. The utility model also discloses a pulverized coal combustion device.

Description

Oil combustion device and pulverized coal combustion device

Technical Field

The utility model relates to the technical field of oil combustion devices, in particular to an oil combustion device and a pulverized coal combustion device.

Background

The micro-oil ignition is to fully burn fuel oil by utilizing the enhanced combustion technology of a gasification small oil gun, and a stable torch with high rigidity and high temperature can be obtained by using a small amount of fuel oil. According to the principle of staged combustion, the pulverized coal is fully combusted as much as possible at the initial stage of ignition, so that the purposes of ignition starting and low-load stable combustion of the pulverized coal boiler are achieved.

Conventionally, the oil combustion device 901 is installed on an elbow of the pulverized coal burner 800 and is axially arranged with the pulverized coal burner 800; for pulverized coal burner 800 without an elbow and with a longer straight tube section, oil burner 901 may be installed in an inclined arrangement as shown in fig. 1.

However, when the oil combustion device 901 is obliquely arranged in the pulverized coal burner 800, although the requirement of micro-oil ignition can be met, the installation position of the oil combustion device 901 is limited by equipment such as a bellows, a secondary air adjusting device and the like, the fire feeding distance cannot be shortened, and the oil flame scours the wall surface of the pulverized coal burner 800 to cause over-temperature, so that the safety is reduced, and meanwhile, the service life of the pulverized coal burner 800 is shortened.

Therefore, how to improve the efficiency and safety of pulverized coal combustion is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model aims to provide an oil combustion device for improving the efficiency and safety of pulverized coal combustion;

the utility model aims to provide a pulverized coal combustion device with the oil combustion device.

In order to achieve the above object, the present utility model provides the following technical solutions:

an oil combustion device for being installed on a pulverized coal burner, comprising an installation pipeline;

the installation pipeline comprises a first cylinder and a second cylinder, and an included angle larger than 0 DEG is formed between the first cylinder and the second cylinder;

the inside of installation pipeline forms the combustion chamber that is used for holding oil gun and ignition rifle, is provided with the ignition in the combustion chamber and assists the pipe, and oil gun and ignition rifle are used for setting up in the ignition and assist the intraductal.

Optionally, in the above oil combustion device, an included angle between the first cylinder and the second cylinder is an obtuse angle.

Optionally, in the above oil combustion apparatus, the first cylinder and the second cylinder are transitional connected by a curved section.

Optionally, in the oil combustion device, a windward side of the curved section is provided with a wear prevention member.

Optionally, in the above oil combustion apparatus, the ignition assisting pipe includes an oil gun duct for providing an installation space of the oil gun and an ignition gun duct for providing an installation space of the ignition gun; and/or the number of the groups of groups,

one end of the installation pipeline is provided with a connecting flange, and the ignition auxiliary pipe is fixed on the installation pipeline through the connecting flange; and/or the number of the groups of groups,

the mounting pipeline is provided with a fixing flange which is used for fixing the mounting pipeline on the pulverized coal burner.

Optionally, in the above oil combustion apparatus, the ignition assisting tube further includes a fire detection conduit for providing an installation space of the fire detection probe.

Optionally, in the oil combustion device, a fire observation hole is formed on the connecting flange; and/or the number of the groups of groups,

the direction of the fixed flange is parallel to the axis direction of the second cylinder.

Optionally, in the above oil combustion device, a combustion air duct is provided on the first cylinder of the installation duct, and the combustion air duct is communicated with the installation duct, so that combustion air enters the combustion chamber through the combustion air duct; and/or the number of the groups of groups,

the combustion chamber is internally provided with a wind distribution cover, a wind distribution hole is formed in the wind distribution cover, and one end of the wind distribution cover is connected with the ignition auxiliary pipe.

Optionally, in the above oil combustion apparatus, the air distribution cover is arranged in multiple stages.

In the oil combustion device provided by the utility model, an included angle larger than 0 DEG is formed between the first cylinder and the second cylinder of the installation pipeline, namely the first cylinder and the second cylinder are not in the same straight line. When the oil combustion device is arranged on the pulverized coal burner, the first cylinder body is arranged on the outer side of the pulverized coal burner, the second cylinder body stretches into the pulverized coal burner, the ignition gun and the oil gun penetrate into the pulverized coal burner through the ignition auxiliary tube, the first cylinder body and the second cylinder body are not in the same straight line, the overtemperature caused by direct flushing of oil flame during combustion on the wall surface of the pulverized coal burner is avoided, the safety of the pulverized coal burner is ensured, and the pulverized coal combustion efficiency is improved.

The oil combustion device provided by the utility model can be used for pulverized coal burners which are limited by the structure and the installation position and cannot be axially arranged, so that the ignition combustion effect is ensured, the pulverized coal burners can be prevented from being burnt, and the defect of the obliquely inserted oil combustion device is overcome.

A pulverized coal combustion device comprising a pulverized coal burner and further comprising an oil combustion device according to any one of the preceding claims.

The pulverized coal combustion device provided by the utility model has all the technical effects of the oil combustion device because the pulverized coal combustion device is provided with the oil combustion device, and the description is omitted herein.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an installation of a prior art oil burner apparatus disclosed in an embodiment of the present utility model;

FIG. 2 is an axial cross-sectional view of an oil combustion apparatus disclosed in an embodiment of the present utility model;

FIG. 3 is a schematic view of an installation of an oil burner apparatus according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of an oil combustion apparatus according to an embodiment of the present utility model;

FIG. 5 is a side view of an oil combustion apparatus according to an embodiment of the present disclosure;

wherein:

100 is an installation pipeline; 101 is a first cylinder; 102 is a second cylinder; 103 is a curved section;

200 is a combustion-supporting air pipeline;

301 is an oil gun conduit; 302 is an ignition gun conduit; 303 is a fire detection catheter;

400 is a wind distribution cover; 401 is an air distribution hole;

500 is a connecting flange; 501 is a fire observation hole;

600 is a fixed flange;

700 is an anti-wear member;

800 is a pulverized coal burner;

901 is an oil combustion device; 902 is an oil burner.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without novel efforts, are intended to fall within the scope of this utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top surface", "bottom surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limitations of the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 2, the disclosed oil combustion apparatus 902 is configured to be mounted on a pulverized coal burner 800, and includes a mounting pipe 100; the installation pipeline 100 comprises a first cylinder 101 and a second cylinder 102, wherein an included angle larger than 0 DEG is formed between the first cylinder 101 and the second cylinder 102; the interior of the mounting duct 100 forms a combustion chamber for accommodating an oil gun and an ignition gun, which are provided with an ignition aid tube therein for being disposed therein.

In the oil combustion apparatus 902 provided by the utility model, an included angle greater than 0 ° is formed between the first cylinder 101 and the second cylinder 102 of the installation pipeline 100, that is, the first cylinder 101 and the second cylinder 102 are not on the same straight line. When the oil combustion device 902 is installed on the pulverized coal burner 800, the first cylinder 101 is arranged on the outer side of the pulverized coal burner 800, the second cylinder 102 stretches into the pulverized coal burner 800, the ignition gun and the oil gun penetrate deep into the pulverized coal burner 800 through the ignition auxiliary pipe, the first cylinder 101 and the second cylinder 102 are not in the same straight line, the overtemperature caused by direct flushing of the wall surface of the pulverized coal burner 800 by oil flame during combustion is avoided, the safety of the pulverized coal burner 800 is ensured, and the pulverized coal combustion efficiency is improved.

The oil combustion device 902 provided by the utility model can be used for the pulverized coal burner 800 which is limited by the structure and the installation position and cannot be axially provided with the oil combustion device 901, so that the ignition combustion effect is ensured, the burning loss of the pulverized coal burner 800 can be prevented, and the defect of the obliquely inserted oil combustion device 901 is overcome.

In order to optimize the above technical solution, the included angle between the first cylinder 101 and the second cylinder 102 is set to be an obtuse angle, and the directions indicated by arrows in fig. 2 are the directions of oil and combustion air flowing in the installation pipeline 100, and the oil and the combustion air flow from the first cylinder 101 to the second cylinder 102. Compared with the included angle between the first cylinder 101 and the second cylinder 102 being an acute angle or a right angle, when the included angle between the first cylinder 101 and the second cylinder 102 being an obtuse angle, the resistance of the oil and the combustion air in the installation pipeline 100 is smaller, and the flow of the oil and the combustion air in the installation pipeline 100 is smoother.

The first cylinder 101 and the second cylinder 102 are not on the same straight line, as shown in fig. 2, the first cylinder 101 and the second cylinder 102 are in transitional connection through the bending section 103, and the first cylinder 101 and the second cylinder 102 are in smooth transitional connection due to the bending section 103, so that the flow of oil and air in the installation pipeline 100 is more stable. Alternatively, the first cylinder 101 and the second cylinder 102 are directly connected at a certain angle, but the flow of the oil and the combustion air is disturbed at this time.

When installed, the second cylinder 102 and the curved section 103 of the oil burner 902 are disposed in the pulverized coal burner 800, and the wear-preventing member 700 is disposed on the windward side of the curved section 103 in consideration of the scouring action of pulverized coal to protect the oil burner 902. Wear guard 700 includes, but is not limited to, wear resistant ceramics, wear resistant steel, wear resistant paint, and the like.

To fix the position of the ignition-assist tube in the mounting pipe 100, a connection flange 500 is provided at one end of the mounting pipe 100, and the ignition-assist tube is fixed to the mounting pipe 100 through the connection flange 500. The ignition aid tube may be welded to the connection flange 500.

In an embodiment of the present utility model, the ignition-assist tube includes an oil gun guide 301 and an ignition gun guide 302, the oil gun guide 301 for providing an installation space of the oil gun, and the ignition gun guide 302 for providing an installation space of the ignition gun. To facilitate the observation and inspection of the combustion condition of the oil burner 902 by the operator and to make corresponding adjustments in time, the ignition aid tube further includes a fire detection conduit 303 to provide a space for the installation of a fire detection probe.

The oil gun guide 301, the ignition gun guide 302, and the fire detection guide 303 are all of a curved structure, and the bending angle is the same as the angle between the first cylinder 101 and the second cylinder 102. The oil gun guide 301, the ignition gun guide 302 and the fire detection guide 303 can be formed by bending straight pipes, but the diameter size is ensured, and a flexible rod oil gun, a flexible rod ignition gun and a flexible rod oil fire detection probe are arranged through the bent oil gun guide 301, the bent ignition gun guide 302 and the bent fire detection guide 303.

Further, the fire observation holes 501 are formed on the connection flange 500, so as to facilitate the observation of the combustion condition of the oil flame by the staff.

To optimize the above technical solution, to stabilize the position of the oil burner 902 on the pulverized coal burner 800, a fixing flange 600 is provided on the installation pipe 100 to fix the oil burner 902 on the pulverized coal burner 800, thereby improving the stability of combustion. The fixing flange 600 is used to fix the oil burner 902, which may be welded perpendicularly to the first cylinder 101 of the mounting pipe 100 or at an angle. When the oil burner 902 is mounted to the pulverized coal burner 800, the fixing flange 600 may be fixedly connected to a counter flange of the pulverized coal burner 800 by bolts.

The direction of the fixing flange 600 is preferably parallel to the axial direction of the second cylinder 102 to ensure that the second cylinder 102 penetrates into the pulverized coal burner 800 when the oil burner 902 is mounted to the pulverized coal burner 800 through the fixing flange 600, and the direction of the second cylinder 102 is parallel to the axial direction of the pulverized coal burner 800. When the section of the pulverized coal burner 800 is square, the distance between the fixing flange 600 and the axis of the second cylinder 102 is half of the square width, so that the axis of the second cylinder 102 and the axis of the pulverized coal burner 800 can be ensured to coincide, that is, the oil flame is located on the axis of the pulverized coal burner 800, and the damage of the oil flame to the pulverized coal burner 800 is minimal. When the cross section of the pulverized coal burner 800 is circular, the distance between the fixing flange 600 and the axis of the second cylinder 102 is a radius of the circular shape, so that the oil flame formed by the oil burner 902 can be ensured to be positioned on the axis of the pulverized coal burner 800. The ignition state of the installed oil gun is consistent with the axial arrangement, so that the coal powder burner 800 can be prevented from being burnt by oil flame.

As shown in fig. 2, a combustion air duct 200 is provided on the first cylinder 101 of the installation duct 100, and the combustion air duct 200 communicates with the installation duct 100 so that combustion air enters the combustion chamber through the combustion air duct 200. One end of the combustion air duct 200 is welded with the installation duct 100, and the other end is connected with a metal hose, and the metal hose is internally ventilated, so that oxygen is supplemented when the oil gun ignites and burns, and the formation of oil flame is promoted.

Further, in order to make the air distribution uniform, an air distribution cover 400 is arranged in the combustion chamber, an air distribution hole 401 is formed in the air distribution cover 400, one end of the air distribution cover 400 is connected with the ignition auxiliary pipe, the other end of the air distribution cover 400 is connected with the installation pipeline 100, oxygen is supplemented for the combustion of the oil gun through the air distribution hole 401 on the air distribution cover 400, and the formation of oil flame is promoted.

The air distribution cover 400 can be arranged in a single stage, or in order to make the air distribution effect better, the air distribution cover 400 is arranged in a multi-stage mode, and the air distribution cover 400 is composed of a plurality of air distribution cylinders in the multi-stage arrangement, and the cylinders can be connected through welding.

It should be noted that, the installation pipe 100 is an assembled structure, and the assembly of the installation pipe 100 with the air distribution cover 400, the oil gun pipe 301, the ignition gun pipe 302, the fire detection pipe 303, etc. should be completed first, and then the assembly of the installation pipe 100 should be completed.

The utility model also discloses a pulverized coal combustion device comprising the oil combustion device 902 according to any one of the above. Since the above oil combustion apparatus 902 has the above effects, the pulverized coal combustion apparatus including the oil combustion apparatus 902 has the corresponding effects, and will not be described herein.

It should be noted that the oil combustion device and the pulverized coal combustion device provided by the utility model can be used in the technical field of oil combustion devices or other fields. Other fields are any field other than the technical field of oil removal combustion devices. The above is merely an example, and the application fields of the oil combustion apparatus and the pulverized coal combustion apparatus provided by the present utility model are not limited.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. An oil burner for mounting on a pulverized coal burner (800), characterized by comprising a mounting duct (100);

the installation pipeline (100) comprises a first cylinder (101) and a second cylinder (102), wherein an included angle larger than 0 DEG is formed between the first cylinder (101) and the second cylinder (102);

the inside of installation pipeline (100) forms the combustion chamber that is used for holding oil gun and ignition rifle, be provided with the ignition auxiliary tube in the combustion chamber, oil gun with the ignition rifle is used for set up in the ignition auxiliary tube.

2. The oil combustion device according to claim 1, wherein the angle between the first cylinder (101) and the second cylinder (102) is an obtuse angle.

3. An oil combustion device according to claim 1, wherein the first cylinder (101) and the second cylinder (102) are transitional connected by a curved section (103).

4. An oil burner as claimed in claim 3, characterised in that the windward side of the curved section (103) is provided with wear protection (700).

5. The oil combustion apparatus as claimed in claim 1, wherein the ignition aid pipe includes an oil gun duct (301) and an ignition gun duct (302), the oil gun duct (301) for providing an installation space of the oil gun, the ignition gun duct (302) for providing an installation space of the ignition gun; and/or the number of the groups of groups,

one end of the installation pipeline (100) is provided with a connecting flange (500), and the ignition auxiliary pipe is fixed on the installation pipeline (100) through the connecting flange (500); and/or the number of the groups of groups,

the installation pipeline (100) is provided with a fixing flange (600), and the fixing flange (600) is used for fixing the installation pipeline (100) on the pulverized coal burner (800).

6. An oil burner apparatus as claimed in claim 5, wherein the ignition aid tube further comprises a fire detection conduit (303), the fire detection conduit (303) being adapted to provide a mounting space for a fire detection probe.

7. The oil combustion device according to claim 5, wherein the connecting flange (500) is provided with a fire observation hole (501); and/or the number of the groups of groups,

the direction of the fixing flange (600) is parallel to the axis direction of the second cylinder (102).

8. An oil combustion device according to any one of claims 1-7, characterized in that a combustion air duct (200) is provided on the first cylinder (101) of the mounting duct (100), said combustion air duct (200) being in communication with the mounting duct (100) for letting in said combustion air into the combustion chamber through said combustion air duct (200); and/or the number of the groups of groups,

the combustion chamber is internally provided with a wind distribution cover (400), the wind distribution cover (400) is provided with a wind distribution hole (401), and one end of the wind distribution cover (400) is connected with the ignition auxiliary tube.

9. The oil combustion device according to claim 8, characterized in that the air distribution cover (400) is arranged in multiple stages.

10. A pulverized coal burner comprising a pulverized coal burner (800), characterized in that it further comprises an oil burner (901) as claimed in any one of claims 1-9.