CN212901591U

CN212901591U - Firebrick combustor

Info

Publication number: CN212901591U
Application number: CN202021445679.2U
Authority: CN
Inventors: 樊春霞; 秦振敏; 郑丽东
Original assignee: Zhengzhou Changhong Refractory Co ltd
Current assignee: Zhengzhou Changhong Refractory Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-06
Anticipated expiration: 2030-07-21

Abstract

The embodiment of the utility model relates to the technical field of burners, in particular to a refractory brick burner, which comprises an air box, wherein the side wall of the air box is detachably connected with an air channel, the top of the air box is detachably connected with a refractory brick body, the middle part of the refractory brick body is provided with a cavity communicated with the air box, the top of the air box is connected with the bottom of the refractory brick body through a first flange, the refractory brick body is provided with a first mounting hole in a penetrating way, the first flange is provided with a second mounting hole corresponding to the first mounting hole in a penetrating way, a fuel gun is arranged in the first mounting hole and the second mounting hole in a penetrating way, the fuel gun comprises a gun rod which penetrates through the first mounting hole and the, set up in the shower nozzle at barral of a gun top, run through on the resistant firebrick body and set up the water conservancy diversion hole, the diameter of shower nozzle bottom is greater than the internal diameter of first mounting hole, threaded connection nut on the barral of a gun, the top of nut and the bottom looks butt of first flange. The utility model discloses beneficial effect does: the fuel gun is convenient to disassemble and assemble and convenient to maintain and replace.

Description

Firebrick combustor

Technical Field

The utility model relates to a combustor technical field, concretely relates to resistant firebrick combustor.

Background

As regulations become more stringent, higher demands are placed on the emissions requirements of the combustor. In industrial combustion, nitrogen oxide emissions are mainly closely related to excess air factor, and it is advantageous to mix air and fuel thoroughly to reduce nitrogen oxide emissions. In the case of burners, in particular for industrial heating, the modification of the refractory brick assembly for burners can also be used for the purpose of reducing nitrogen oxide emissions, in addition to the modification of the burners themselves. The firebrick subassembly of current combustor includes firebrick body and installs the fuel rifle on firebrick body, but the fuel rifle is troublesome with firebrick body's dismouting mode, and it is inconvenient to change, consequently, needs a firebrick combustor to overcome the emergence of above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an embodiment of the present invention provides a firebrick burner, which comprises an air box, wherein an air duct is detachably disposed on a side wall of the air box, a firebrick body is detachably disposed on a top of the air box, a cavity communicated with the air box is disposed in a middle portion of the firebrick body, the top of the air box is connected with a bottom of the firebrick body through a first flange, a first mounting hole is formed in the firebrick body in a penetrating manner, a second mounting hole corresponding to the first mounting hole is formed in the first flange in a penetrating manner, a fuel gun is penetrated in the first mounting hole and the second mounting hole, the fuel gun comprises a gun rod penetrating through the first mounting hole and the second mounting hole, a nozzle is disposed at a top of the gun rod, a flow guide hole matched with the nozzle and communicated with the cavity is disposed on the firebrick body, the diameter of shower nozzle bottom is greater than the internal diameter of first mounting hole, be equipped with the external screw thread on the lateral wall of barral of a gun, threaded connection nut on the barral of a gun, the top of nut with the bottom looks butt of first flange.

Preferably, the firebrick body includes the fire-resistant lower part body of being connected with the top of bellows, the symmetry set up in two fire-resistant upper portion boards of the top left and right sides of fire-resistant lower part body, set up two fire-resistant middle part boards at both ends around between two fire-resistant upper portion boards, the cavity is including seting up the air inlet cavity in the middle part of fire-resistant lower part body, the air outlet cavity that encloses between two fire-resistant upper portion boards and two fire-resistant middle part boards, the air inlet cavity is the straight type runner that the cross-sectional area is unchangeable, the air outlet cavity is the degressive shrink type runner of cross-sectional area from bottom to top.

Preferably, the fire-resistant upper plate is arranged obliquely, the top of the fire-resistant upper plate is inclined towards one side of the air outlet cavity, and the included angle between the fire-resistant upper plate and the horizontal plane is 56-62 degrees.

Preferably, the fireproof middle plate is provided with an airflow opening in a penetrating manner.

Preferably, the nozzle is provided with a first spray hole which is matched with the diversion hole and used for spraying fuel into the cavity, and the nozzle is provided with a second spray hole which is used for spraying fuel to the top of the cavity along the outer side wall of the refractory brick.

Preferably, the air box further comprises an ejector, the ejector penetrates through the air box in the vertical direction, and the top of the ejector is located in the cavity.

Preferably, the fuel guns are symmetrically arranged on the left side and the right side of the firebrick body, and the number of the fuel guns is 6-10.

The utility model discloses beneficial effect does: the utility model discloses simple structure, convenient to use, refractory brick body demountable installation are at the top of bellows, and fuel gun demountable installation is on refractory brick body, and the dismouting is convenient, is convenient for maintain, change.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

in the figure: the air box comprises an air box 1, an air channel 2, a first flange 3, a fireproof lower body 4, a fireproof upper plate 5, a fireproof middle plate 6, an airflow opening 7, a gun rod 8, a spray head 9, a screw cap 10, an ejector 11, a flow guide hole 12, a second flange 13, a first mounting hole 14 and a second mounting hole 15.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Example 1

A firebrick combustor, refer to fig. 1, 2 and 3, it includes bellows 1, can dismantle on bellows 1's the right side wall through second flange 13 and connect wind channel 2, and the first flange 3 demountable installation firebrick body is passed through at the top of bellows 1. The middle part of the firebrick body is provided with a cavity communicated with the bellows 1. The firebrick body comprises a fireproof lower body 4 connected with the top of the bellows 1, two fireproof upper plates 5 symmetrically connected at the left and right sides of the top of the fireproof lower body 4, and two fireproof middle plates 6 connected at the front and rear ends between the two fireproof upper plates 5. The cavity comprises an air inlet cavity arranged in the middle of the fireproof lower body 4, and an air outlet cavity enclosed between two fireproof upper plates 5 and two fireproof middle plates 6. The air inlet cavity is a straight runner with a constant cross-sectional area, and the air outlet cavity is a contraction runner with a cross-sectional area decreasing from bottom to top. The refractory upper plate 5 is arranged obliquely, the top of the refractory upper plate 5 is inclined towards one side of the air outlet cavity, and the included angle between the refractory upper plate 5 and the horizontal plane is 56 degrees. The fire-resistant middle plate 6 is arranged along the vertical direction, the fire-resistant middle plate 6 is perpendicular to the fire-resistant upper plate 5, and the fire-resistant middle plate 6 is provided with an airflow opening 7 in a penetrating mode. The width of the fire-resistant lower part body 4 on the left and right sides direction is greater than the width of bellows 1 on the left and right sides direction, run through on the fire-resistant lower part body 4 and seted up first mounting hole 14, first mounting hole 14 is seted up along vertical direction, 14 symmetric distribution in the left and right sides of bellows 1, run through on the first flange 3 and seted up with the corresponding second mounting hole 15 of first mounting hole 14, second mounting hole 15 is seted up along vertical direction, wear to adorn the fuel rifle in first mounting hole 14 and the 15 second mounting holes, the left and right sides on the resistant firebrick body is installed to the fuel rifle symmetry, the quantity of fuel rifle is 6. The fuel gun comprises a gun rod 8 penetrating through a first mounting hole 14 and a second mounting hole 15, a spray head 9 mounted at the top of the gun rod 8, a flow guide hole 12 matched with the spray head 9 and communicated with a cavity is formed in the fireproof upper plate 5, the diameter of the bottom of the spray head 9 is larger than the inner diameter of the first mounting hole 14, an external thread is formed in the outer side wall of the gun rod 8, the gun rod 8 is connected with a nut 10 in a threaded mode, and the top of the nut 10 is abutted to the bottom of the first flange 3. The dismouting is convenient, is convenient for maintain, change. The nozzle 9 is provided with a first spray hole which is matched with the diversion hole 12 and is used for spraying fuel into the cavity, and the nozzle 9 is provided with a second spray hole which is used for spraying the fuel to the top of the cavity along the outer side wall of the refractory brick. So that the fuel sprayed from the first nozzle hole is sprayed into the cavity to be combusted, and the fuel sprayed from the second nozzle hole is sprayed to the top of the cavity to be combusted. Due to the fuel staged combustion, the flame peak temperature during combustion is reduced, thereby reducing the emission of nitrogen oxides. Still include the ejector 11, ejector 11 runs through bellows 1 along vertical direction, and the top of ejector 11 is located the cavity. The fuel is sprayed into the ejector 11, combustion-supporting air enters the ejector 11 and is mixed with the fuel to form premixed mixed gas, the premixed mixed gas is sprayed out from an outlet of the ejector 11 and is subjected to lean-burn combustion in the cavity, and emission of nitrogen oxides can be effectively reduced.

Example 2

A firebrick combustor, refer to fig. 1, 2 and 3, it includes bellows 1, can dismantle on bellows 1's the right side wall through second flange 13 and connect wind channel 2, and the first flange 3 demountable installation firebrick body is passed through at the top of bellows 1. The middle part of the firebrick body is provided with a cavity communicated with the bellows 1. The firebrick body comprises a fireproof lower body 4 connected with the top of the bellows 1, two fireproof upper plates 5 symmetrically connected at the left and right sides of the top of the fireproof lower body 4, and two fireproof middle plates 6 connected at the front and rear ends between the two fireproof upper plates 5. The cavity comprises an air inlet cavity arranged in the middle of the fireproof lower body 4, and an air outlet cavity enclosed between two fireproof upper plates 5 and two fireproof middle plates 6. The air inlet cavity is a straight runner with a constant cross-sectional area, and the air outlet cavity is a contraction runner with a cross-sectional area decreasing from bottom to top. The fire-resistant upper plate 5 is arranged obliquely, the top of the fire-resistant upper plate 5 is inclined towards one side of the air outlet cavity, and the included angle between the fire-resistant upper plate 5 and the horizontal plane is 59 degrees. The fire-resistant middle plate 6 is arranged along the vertical direction, the fire-resistant middle plate 6 is perpendicular to the fire-resistant upper plate 5, and the fire-resistant middle plate 6 is provided with an airflow opening 7 in a penetrating mode. The width of the fire-resistant lower part body 4 on the left and right sides direction is greater than the width of bellows 1 on the left and right sides direction, run through on the fire-resistant lower part body 4 and seted up first mounting hole 14, first mounting hole 14 is seted up along vertical direction, 14 symmetric distribution in the left and right sides of bellows 1, run through on the first flange 3 and seted up with the corresponding second mounting hole 15 of first mounting hole 14, second mounting hole 15 is seted up along vertical direction, wear to adorn the fuel rifle in first mounting hole 14 and the 15 second mounting holes, the left and right sides on the resistant firebrick body is installed to the fuel rifle symmetry, the quantity of fuel rifle is 6. The fuel gun comprises a gun rod 8 penetrating through a first mounting hole 14 and a second mounting hole 15, a spray head 9 mounted at the top of the gun rod 8, a flow guide hole 12 matched with the spray head 9 and communicated with a cavity is formed in the fireproof upper plate 5, the diameter of the bottom of the spray head 9 is larger than the inner diameter of the first mounting hole 14, an external thread is formed in the outer side wall of the gun rod 8, the gun rod 8 is connected with a nut 10 in a threaded mode, and the top of the nut 10 is abutted to the bottom of the first flange 3. The dismouting is convenient, is convenient for maintain, change. The nozzle 9 is provided with a first spray hole which is matched with the diversion hole 12 and is used for spraying fuel into the cavity, and the nozzle 9 is provided with a second spray hole which is used for spraying the fuel to the top of the cavity along the outer side wall of the refractory brick. So that the fuel sprayed from the first nozzle hole is sprayed into the cavity to be combusted, and the fuel sprayed from the second nozzle hole is sprayed to the top of the cavity to be combusted. Due to the fuel staged combustion, the flame peak temperature during combustion is reduced, thereby reducing the emission of nitrogen oxides. Still include the ejector 11, ejector 11 runs through bellows 1 along vertical direction, and the top of ejector 11 is located the cavity. The fuel is sprayed into the ejector 11, combustion-supporting air enters the ejector 11 and is mixed with the fuel to form premixed mixed gas, the premixed mixed gas is sprayed out from an outlet of the ejector 11 and is subjected to lean-burn combustion in the cavity, and emission of nitrogen oxides can be effectively reduced.

Example 3

A firebrick combustor, refer to fig. 1, 2 and 3, it includes bellows 1, can dismantle on bellows 1's the right side wall through second flange 13 and connect wind channel 2, and the first flange 3 demountable installation firebrick body is passed through at the top of bellows 1. The middle part of the firebrick body is provided with a cavity communicated with the bellows 1. The firebrick body comprises a fireproof lower body 4 connected with the top of the bellows 1, two fireproof upper plates 5 symmetrically connected at the left and right sides of the top of the fireproof lower body 4, and two fireproof middle plates 6 connected at the front and rear ends between the two fireproof upper plates 5. The cavity comprises an air inlet cavity arranged in the middle of the fireproof lower body 4, and an air outlet cavity enclosed between two fireproof upper plates 5 and two fireproof middle plates 6. The air inlet cavity is a straight runner with a constant cross-sectional area, and the air outlet cavity is a contraction runner with a cross-sectional area decreasing from bottom to top. The fire-resistant upper plate 5 is arranged obliquely, the top of the fire-resistant upper plate 5 is inclined towards one side of the air outlet cavity, and the included angle between the fire-resistant upper plate 5 and the horizontal plane is 62 degrees. The fire-resistant middle plate 6 is arranged along the vertical direction, the fire-resistant middle plate 6 is perpendicular to the fire-resistant upper plate 5, and the fire-resistant middle plate 6 is provided with an airflow opening 7 in a penetrating mode. The width of the fire-resistant lower part body 4 on the left and right sides direction is greater than the width of bellows 1 on the left and right sides direction, run through on the fire-resistant lower part body 4 and seted up first mounting hole 14, first mounting hole 14 is seted up along vertical direction, 14 symmetric distribution in the left and right sides of bellows 1, run through on the first flange 3 and seted up with the corresponding second mounting hole 15 of first mounting hole 14, second mounting hole 15 is seted up along vertical direction, wear to adorn the fuel rifle in first mounting hole 14 and the 15 second mounting holes, the left and right sides on the resistant firebrick body is installed to the fuel rifle symmetry, the quantity of fuel rifle is 6. The fuel gun comprises a gun rod 8 penetrating through a first mounting hole 14 and a second mounting hole 15, a spray head 9 mounted at the top of the gun rod 8, a flow guide hole 12 matched with the spray head 9 and communicated with a cavity is formed in the fireproof upper plate 5, the diameter of the bottom of the spray head 9 is larger than the inner diameter of the first mounting hole 14, an external thread is formed in the outer side wall of the gun rod 8, the gun rod 8 is connected with a nut 10 in a threaded mode, and the top of the nut 10 is abutted to the bottom of the first flange 3. The dismouting is convenient, is convenient for maintain, change. The nozzle 9 is provided with a first spray hole which is matched with the diversion hole 12 and is used for spraying fuel into the cavity, and the nozzle 9 is provided with a second spray hole which is used for spraying the fuel to the top of the cavity along the outer side wall of the refractory brick. So that the fuel sprayed from the first nozzle hole is sprayed into the cavity to be combusted, and the fuel sprayed from the second nozzle hole is sprayed to the top of the cavity to be combusted. Due to the fuel staged combustion, the flame peak temperature during combustion is reduced, thereby reducing the emission of nitrogen oxides. Still include the ejector 11, ejector 11 runs through bellows 1 along vertical direction, and the top of ejector 11 is located the cavity. The fuel is sprayed into the ejector 11, combustion-supporting air enters the ejector 11 and is mixed with the fuel to form premixed mixed gas, the premixed mixed gas is sprayed out from an outlet of the ejector 11 and is subjected to lean-burn combustion in the cavity, and emission of nitrogen oxides can be effectively reduced.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, 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, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A refractory brick burner characterized by: the air box comprises an air box, an air channel is detachably connected to the side wall of the air box, the top of the air box is detachably connected with a refractory brick body, a cavity communicated with the air box is formed in the middle of the refractory brick body, the top of the air box is connected with the bottom of the refractory brick body through a first flange, a first mounting hole is formed in the refractory brick body in a penetrating mode, a second mounting hole corresponding to the first mounting hole is formed in the first flange in a penetrating mode, a fuel gun penetrates through the first mounting hole and the second mounting hole and comprises a gun rod penetrating through the first mounting hole and the second mounting hole and a spray head arranged at the top of the gun rod, a flow guide hole matched with the spray head and communicated with the cavity is formed in the refractory brick body in a penetrating mode, the diameter of the bottom of the spray head is larger than the inner diameter of the first mounting hole, and external threads are arranged on the outer side wall of the, and the gun rod is in threaded connection with a nut, and the top of the nut is abutted against the bottom of the first flange.

2. The firebrick burner of claim 1, wherein: the firebrick body include with the fire-resistant lower part body that the top of bellows is connected, the symmetry set up in two fire-resistant upper portion boards of the top left and right sides of fire-resistant lower part body, set up two fire-resistant middle part boards at both ends around between two fire-resistant upper portion boards, the cavity is including offering in the air inlet cavity at the middle part of fire-resistant lower part body, the air outlet cavity of enclosing between two fire-resistant upper portion boards and two fire-resistant middle part boards, the air inlet cavity is the straight type runner that the cross-sectional area is unchangeable, the air outlet cavity is the degressive shrink type runner of cross-sectional area from bottom to top.

3. The firebrick burner of claim 2, wherein: the fire-resistant upper plate is obliquely arranged, the top of the fire-resistant upper plate is inclined towards one side of the air outlet cavity, and the included angle between the fire-resistant upper plate and the horizontal plane is 56-62 degrees.

4. The firebrick burner of claim 2, wherein: and an airflow opening is formed in the fireproof middle plate in a penetrating manner.

5. The firebrick burner of claim 1, wherein: the spray head is provided with a first spray hole which is matched with the diversion hole and used for spraying fuel into the cavity, and the spray head is provided with a second spray hole which is used for spraying the fuel to the top of the cavity along the outer side wall of the refractory brick.

6. The firebrick burner of claim 1, wherein: the air box is characterized by further comprising an ejector, the ejector penetrates through the air box in the vertical direction, and the top of the ejector is located in the cavity.

7. The firebrick burner of claim 1, wherein: the fuel guns are symmetrically arranged on the left side and the right side of the firebrick body, and the number of the fuel guns is 6-10.