Plasma water-cooling-free igniter

Abstract

The utility model relates to the technical field of power plant ignition, in particular to a plasma water-cooling-free igniter which comprises a plasma igniter body. A plasma generator is mounted on one side of the plasma igniter, and one side of the plasma generator extends into the plasma igniter; a protection mechanism is installed on one side of the plasma igniter, one side of the protection mechanism communicates with a fixed gas pipe, and the outer side of the fixed gas pipe is fixedly connected with the plasma igniter. Power air pipes are arranged on the upper side and the lower side of the protection mechanism. During use, when flames are pushed into a hearth, an external air pump is started to drive gas to enter the fixed air pipe, then the gas enters the protective cover through the fixed air pipe and is exhausted through the air nozzle, at the moment, the secondary combustion chamber can be cooled, and the flames are prevented from damaging the igniter; and meanwhile, the air flow cooling mode can avoid influence on coal bodies in the hearth, and waste of water resources is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant ignition technical field, concretely is a kind of plasma waterless ignition device. BACKGROUND

[0002] The ignition principle of the plasma igniter is to use direct current (280-350A) to contact arc under the condition of medium gas pressure 0.01-0.03Mpa, and obtain stable power direct current air plasma under strong magnetic field. The plasma forms a local high-temperature zone with T>5000K and large gradient in the primary combustion cylinder of the burner. The coal particles are affected by high temperature through the plasma "fire core", and rapidly release volatile matter in 3-10 seconds, and break and crush the coal particles, so as to burn rapidly.

[0003] After completing primary combustion and secondary combustion, when performing tertiary combustion, it needs external protective cover to perform water spraying treatment to cool the secondary combustion chamber, to avoid damage to the igniter by flame, and at the same time, the flame can be pushed into the furnace interior to burn. However, in actual use process, although the water cooling cooling method has good cooling effect, water body inevitably enters the furnace interior, which affects coal combustion, and waste water resources. Therefore, in view of the above problems, a plasma waterless ignition device is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of plasma waterless ignition device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] As an optional scheme of the plasma waterless ignition device, wherein: a kind of plasma waterless ignition device, including plasma igniter, plasma generator and protection mechanism;

[0007] The plasma generator is installed on one side of the plasma igniter, and the plasma generator extends into the plasma igniter on one side;

[0008] The protection mechanism is installed on one side of the plasma igniter, and the protection mechanism is communicated with the fixed air pipe on one side, and the outer side of the fixed air pipe is fixedly connected with the plasma igniter;

[0009] The power air pipe is arranged on the upper and lower sides of the protection mechanism, and the outer side of the power air pipe is fixedly connected with the plasma igniter;

[0010] The protection mechanism comprises a protection cover, a rotating wheel and a fixed ring, the inner side of the protection cover is rotationally connected with the plasma igniter, one side of the protection cover is rotationally connected with the fixed ring, and the other end of the fixed ring is in communication with the fixed gas pipe;

[0011] The outer side of the protection cover is fixedly connected with the rotating wheel, and the outer side of the rotating wheel is fixedly connected with the uniformly distributed push plates.

[0012] After the completion of the primary combustion and the secondary combustion, when the tertiary combustion is carried out, the external protection cover is needed to spray water to cool the secondary combustion chamber, so as to avoid damage to the igniter by the flame, and the flame can be pushed into the furnace interior to burn, but in actual use, the water cooling cooling method has good cooling effect, but water inevitably enters the furnace interior, which affects the coal combustion, and water resources are wasted, when the flame is pushed into the furnace interior, the external air pump is started to drive air into the fixed gas pipe, and then the air enters the protection cover through the fixed gas pipe and is discharged through the air injection nozzle, so that the secondary combustion chamber can be cooled to avoid damage to the igniter by the flame, and the air flow cooling method can avoid affecting the coal in the furnace interior and wasting water resources.

[0013] As an optional solution of the plasma waterless cooling igniter, the protection cover is in a sandwiched arrangement, the interior of the protection cover is hollow, and the inner side of the protection cover is in communication with the air injection nozzle.

[0014] As an optional solution of the plasma waterless cooling igniter, the number of air injection nozzles is in a multiple arrangement, and the air injection nozzles are in an inclined arrangement.

[0015] As an optional solution of the plasma waterless cooling igniter, the number of power gas pipes is two, and the power gas pipes are in a central symmetric arrangement.

[0016] As an optional solution of the plasma waterless cooling igniter, the other end of the power gas pipe and the fixed gas pipe is externally connected with an air pump device.

[0017] Air is driven into the power gas pipes on both sides by the external air pump, the power gas pipes can output power to the push plates, the push plates rotate, the rotating wheel and the protection cover are driven to rotate, the air injection nozzles rotate, the flame around the air injection nozzles is blown, and the secondary combustion chamber is effectively cooled.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a use, when the flame is pushed to the inside of hearth, its through the starting outside air pump drive gas enters to the inside fixed gas pipe, then enters to the inside protection cover through fixed gas pipe, discharges through the air jet, can carry out the cooling of two -stage combustion chamber to avoid the damage of flame to igniter, and the air flow cooling mode can avoid the influence to the coal body in the inside of hearth, and avoid the waste of water resource simultaneously;

[0020] And through the outside air pump drive air enters to the inside power gas pipe of both sides, and the power gas pipe blows and can carry out power output to the stirring board, when the stirring board rotates, can drive the rotation of rotating wheel and protection cover, can make the air jet rotate at this moment, can rotate and blow around the flame at this moment, guarantee two -stage combustion chamber carries out effective cooling. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the structure schematic diagram of the protection mechanism of the utility model;

[0023] Figure 3 It is the structure schematic diagram of the protection cover of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the fixed ring of the utility model.

[0025] In the drawing: 1, plasma igniter;2, plasma generator;3, protection mechanism;301, protection cover;302, rotating wheel;303, fixed ring;304, air jet;305, stirring board;4, power gas pipe;5, fixed gas pipe. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described below in clear and complete manner in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0027] Embodiment 1: please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , the utility model provides a technical scheme:

[0028] A plasma waterless cooling igniter, comprising plasma igniter 1, plasma generator 2 and protection mechanism 3;

[0029] The plasma igniter 1 is provided with a plasma generator 2 on one side, and the plasma generator 2 extends into the plasma igniter 1;

[0030] The plasma igniter 1 is provided with a protection mechanism 3 on one side, and the protection mechanism 3 is communicated with a fixed gas pipe 5 on one side, and the outer side of the fixed gas pipe 5 is fixedly connected with the plasma igniter 1;

[0031] The protection mechanism 3 is provided with a power gas pipe 4 on the upper and lower sides, and the outer side of the power gas pipe 4 is fixedly connected with the plasma igniter 1;

[0032] The protection mechanism 3 includes a protection cover 301, a rotating wheel 302 and a fixed ring 303, the inner side of the protection cover 301 is rotatably connected with the plasma igniter 1, the protection cover 301 is rotatably connected with the fixed ring 303 on one side, and the other end of the fixed ring 303 is communicated with the fixed gas pipe 5;

[0033] The outer side of the protection cover 301 is fixedly connected with the rotating wheel 302, and the outer side of the rotating wheel 302 is fixedly connected with the uniformly distributed push plates 305.

[0034] After the completion of the first and second combustion, when the third combustion is carried out, it needs the protection cover to spray water for cooling the second combustion chamber to avoid damage to the igniter by the flame, and at the same time, the flame can be pushed into the furnace for combustion. However, in actual use, although the water cooling cooling method has good cooling effect, water inevitably enters the furnace, affecting the combustion of coal, and wasting water resources. When the flame is pushed into the furnace, the external air pump is started to drive the gas into the fixed gas pipe 5, and then into the protection cover 301 through the fixed gas pipe 5, and then discharged through the air nozzle 304. At this time, the second combustion chamber can be cooled to avoid damage to the igniter by the flame, and the air flow cooling method can avoid affecting the coal in the furnace and wasting water resources;

[0035] In this embodiment, when the external gas is discharged through the power gas pipe 4, the push plates 305 can be blown to rotate, which in turn drives the rotating wheel 302 to rotate, and then drives the protection cover 301 to rotate. At this time, the flame can be rotated to blow into the furnace, so as to protect the second combustion chamber.

[0036] Embodiment 2: This embodiment is an improvement on embodiment 1, please refer to Figure 2 and Figure 3 Specifically, the protection cover 301 is provided in a sandwiched manner, the inner side of the protection cover 301 is provided in a hollow manner, and the inner side of the protection cover 301 is communicated with the air nozzle 304.

[0037] The jet nozzles 304 are arranged in multiple groups, and the jet nozzles 304 are arranged obliquely.

[0038] The power air pipes 4 are arranged in two groups, and the power air pipes 4 are arranged in a central symmetry.

[0039] The other ends of the power air pipes 4 and the fixed air pipes 5 are externally connected with air pump devices.

[0040] Air is driven by the external air pump into the power air pipes 4 on both sides, and the power air pipes 4 blow to output power to the actuating plate 305, at this time, the actuating plate 305 rotates, and the rotating wheel 302 and the protective cover 301 are driven to rotate, at this time, the jet nozzles 304 can be rotated to blow around the flame, so as to ensure that the secondary combustion chamber is effectively cooled.

[0041] In the embodiment, the jet nozzles 304 are arranged obliquely, at this time, the jet nozzles 304 can blow around the tertiary flame to achieve the purposes of cooling and pushing, and the exhaust end of the power air pipe 4 is arranged in the opposite direction, at this time, the actuating plate 305 can be stably rotated.

[0042] It should be noted that, in the present document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0043] Although the embodiments of the present application have been shown and described, it should be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plasma waterless igniter, characterized in that: It includes a plasma igniter (1), a plasma generator (2), and a protective mechanism (3); A plasma generator (2) is installed on one side of the plasma igniter (1), and one side of the plasma generator (2) extends into the interior of the plasma igniter (1). A protective mechanism (3) is installed on one side of the plasma igniter (1), and a fixed air pipe (5) is connected to one side of the protective mechanism (3), and the outer side of the fixed air pipe (5) is fixedly connected to the plasma igniter (1). The protective mechanism (3) is provided with power air pipes (4) on the upper and lower sides, and the outer side of the power air pipes (4) is fixedly connected to the plasma igniter (1). The protective mechanism (3) includes a protective cover (301), a rotating wheel (302) and a fixing ring (303). The inner side of the protective cover (301) is rotatably connected to the plasma igniter (1). The fixing ring (303) is rotatably connected to one side of the protective cover (301), and the other end of the fixing ring (303) is connected to the fixing air pipe (5). A rotating wheel (302) is fixedly connected to the outer side of the protective cover (301), and evenly distributed actuating plates (305) are fixedly connected to the outer side of the rotating wheel (302).

2. The plasma waterless igniter according to claim 1, characterized in that: The protective cover (301) is sandwiched, the interior of the protective cover (301) is hollow, and the inner side of the protective cover (301) is connected to a jet nozzle (304).

3. A plasma waterless igniter according to claim 2, characterized in that: The number of air nozzles (304) is arranged in multiple groups, and the air nozzles (304) are arranged at an angle.

4. A plasma waterless igniter according to claim 1, characterized in that: The number of power air pipes (4) is two sets, and the power air pipes (4) are arranged in a centrally symmetrical manner.

5. A plasma waterless igniter according to claim 1, characterized in that: An air pump is connected to the other end of the power air pipe (4) and the fixed air pipe (5).

Images