CN113251413A

CN113251413A - High-strength tubular combustor convenient for meeting different loads

Info

Publication number: CN113251413A
Application number: CN202110538230.3A
Authority: CN
Inventors: 杨敬辉; 何福东
Original assignee: Dongguan Haixin Metal Technology Co ltd
Current assignee: Dongguan Haixin Metal Technology Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-08-13

Abstract

The invention discloses a high-strength tubular burner convenient for meeting different loads, which relates to the field of tubular burners and comprises a tubular burner main body, a gas distribution pipe, a Venturi tube and an ignition device, wherein the two ends of the burner main body are sealed; one end of the Venturi tube is provided with an air inlet, and the other end of the Venturi tube is provided with an air outlet; one end of the gas distribution pipe is communicated with the interior of the burner main body and is in sealing connection with the burner main body, and the other end of the gas distribution pipe is communicated with the gas outlet of the Venturi tube and is in sealing connection with the Venturi tube; a grid sheet is arranged between the inner wall of the gas distribution pipe and the inner wall of the Venturi tube; the ignition device comprises an ignition needle, and the tail end of the ignition needle is adjacent to one of the combustion holes; the invention solves the technical problem of low load capacity of the tubular combustor in the prior art.

Description

High-strength tubular combustor convenient for meeting different loads

Technical Field

The invention relates to the technical field of tubular combustors, in particular to a high-strength tubular combustor convenient for meeting different loads.

Background

If the tubular burner does not step down the gas air current, the direct gas input combustor main part of carrying out combustion will produce unstable flame to accompanied noise, great reduction ignition success rate moreover. Most tubular combustors in the current market are provided with processing technologies such as adding a bent pipe/a blocking stud in front of a combustion pipe to reduce the gas input pressure of the combustor, but the bent pipe technology easily causes the phenomena of tensile cracking, low load capacity, serious deformation and the like of the combustor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a high-strength tubular burner which is convenient to meet different loads, and the technical problem that the tubular burner in the prior art is low in load capacity is solved.

In order to achieve the above object, the present invention provides a high strength tubular burner which is convenient for meeting different loads, comprising a tubular burner body with two sealed ends, a gas distribution pipe, a venturi tube and an ignition device; one end of the Venturi tube is provided with an air inlet, and the other end of the Venturi tube is provided with an air outlet; one end of the gas distribution pipe is communicated with the interior of the burner main body and is in sealing connection with the burner main body, and the other end of the gas distribution pipe is communicated with the gas outlet of the Venturi tube and is in sealing connection with the Venturi tube; a grid sheet is arranged between the inner wall of the gas distribution pipe and the inner wall of the Venturi tube; the ignition device comprises an ignition needle, and the tail end of the ignition needle is adjacent to one of the combustion holes; the gas and the air are mixed and then enter from the gas inlet of the Venturi tube, are pressurized by the Venturi tube, are discharged from the gas outlet, enter the gas distribution pipe through the grid sheet, and finally are discharged from the gas distribution pipe and enter the inner part of the burner main body.

In the above technical scheme, the ignition device further comprises a housing and a fixing frame fixedly connected with the housing, the ignition needle extends out of one end of the housing, and the fixing frame is relatively fixed with the gas distribution pipe.

In the above technical scheme, the fixing device further comprises a fixing seat sleeved on the gas distribution pipe, a first through hole and a first positioning hole are formed in the fixing seat, a second positioning hole is formed in the fixing frame, the shell penetrates through the first through hole, and the screw penetrates through the second positioning hole and the first positioning hole to fix the fixing frame on the fixing seat.

In the technical scheme, the burner main body is in a circular tube shape.

In the above technical scheme, the gas distribution pipe is in a circular pipe shape.

In the technical scheme, the middle part of the outer wall of the Venturi tube is provided with the reinforcing rib.

In the technical scheme, the two sides of the burner main body are provided with the sealing blocks.

In the technical scheme, the venturi tube is provided with a vent communicated with the inside on the outer wall close to one end of the air inlet.

Among the above-mentioned technical scheme, it still includes that the middle part is provided with the air door regulator of second through-hole, the both sides of air door regulator are provided with the air door to adjust the air volume of vent, the laminating of air door regulator is established and is rotated on venturi's outer wall, the area of air door is greater than the area of vent.

In the technical scheme, one end of the air door regulator is provided with a waist-shaped hole, and the screw penetrates through the waist-shaped hole to fix the air door on the outer wall of the Venturi tube.

Compared with the prior art, the invention has the beneficial effects that:

when using this technical scheme's combustor, after getting into venturi and pressurized by venturi after gas and the air mixing, the mist passes through behind the net piece and enters into the gas-distributing pipe, discharges from the gas-distributing pipe at last and enters into the inside of combustor main part, then gas and air can be discharged from the burner port, light the ignition needle on the ignition device this moment, gas and air will carry out the mixed combustion at the burner port. The venturi tube is arranged mainly for increasing the gas pressure of gas and preventing gas from flowing back, thereby preventing the phenomenon of backfire of the burner. But gas and air are after venturi pressurization, gas pressure is very big and the velocity of flow is very fast, the effect of net piece between gas distribution pipe and the venturi is exactly to step down and the reposition of redundant personnel to the gas air current, reduce gaseous velocity of flow, input the combustor main part again and carry out combustion work this moment, flame status can reach stable state, the burning is more abundant, thereby reduce the emission of carbon monoxide, restrain nitrogen oxide's formation, and the gas flows smoothly can effectively reduce the combustion noise, this technical scheme's combustor does not need the return bend to come to step down and shunt high-pressure gas, this combustor adopts the mode of venturi and gas distribution pipe straight line intercommunication, thereby possess the advantage that load strength is high. In addition, the combustor of the technical scheme can use the grid sheets with different grids according to the gas input pressure of regions and the environment and the product demand load before delivery, thereby meeting the demands of different regions on the combustors with different loads.

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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. FIG. 1 is a schematic structural view of a high-strength can-type combustor provided by the present invention to facilitate the satisfaction of various loads;

fig. 2 is an exploded view of a high intensity can combustor provided by the present invention to facilitate different loads.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 2, the present embodiment provides a high-strength can type burner, which is convenient to satisfy various loads, and includes a burner body 1, a gas distribution pipe 2, a venturi pipe 3, an ignition device 4, and a mesh sheet 5.

Specifically, the burner body 1 is tubular and sealed at both ends. The mouth of pipe of gas-distributing pipe 2 one end and the inside seal intercommunication of combustor main part 1 can be with welding technology sealing connection between gas-distributing pipe 2 and the combustor main part 1, and gas-distributing pipe 2 preferably sets up the middle part at combustor main part 1 moreover to form the T type, when gaseous from gas-distributing pipe 2 entering combustor main part 1 this moment, gaseous ability even smooth ground flow direction combustor main part 1's inside. Venturi 3's one end is provided with air inlet 31, and the other end is provided with gas outlet 32 and the mouth of pipe of the gas-distributing pipe 2 other end and this gas outlet 32 sealed intercommunication, is provided with net piece 5 between the inner wall of gas-distributing pipe 2 and venturi 3's the inner wall. The gas-distributing pipe 2 and the venturi pipe 3 can be hermetically connected by welding. The grid sheet 5 is preferably a metal member, and can be set as the grid sheet 5 with different specifications and different sizes of grids, and the grid sheet 5 with different specifications can be replaced before the gas distribution pipe 2 and the venturi pipe 3 are welded and sealed. Be provided with on the combustor main part 1 and run through to the inside a plurality of burner port 11 of combustor main part 1, ignition 4 includes ignition needle 41, and the end of ignition needle 41 sets up with one of them burner port 11 is adjacent.

Specifically, the gas and air enter from the gas inlet 31 of the venturi tube 3, are pressurized by the venturi tube 3, are discharged from the gas outlet 32, pass through the mesh sheet 5, enter the gas distribution tube 2, and finally are discharged from the gas distribution tube 2 and enter the interior of the burner body 1, and then are discharged from the combustion hole 11, at this time, the ignition needle 41 on the ignition device 4 is ignited, and the gas and air will be mixed and combusted in the combustion hole 11. The venturi tube 3 is provided to increase the gas pressure of the gas flow, thereby preventing the gas from flowing backward, thereby preventing the burner of the present embodiment from backfiring. But gas and air are behind venturi 3 pressurization, airflow pressure can become very big and the velocity of flow is very fast, the effect of net piece 5 between gas distribution pipe 2 and the venturi 3 is exactly to step down and the reposition of redundant personnel to the gas flow, reduce gaseous velocity of flow, reentrant combustor main part 1 carries out combustion work this moment, flame status can reach steady state, the burning is more abundant, thereby reduce the emission of carbon monoxide, restrain nitrogen oxide's formation, and the gas flows smoothly and effectively to reduce the combustion noise, this technical scheme's combustor does not need the return bend to come to step down and reposition of redundant personnel high-pressure gas, this combustor adopts the mode of venturi 3 and 2 sharp intercommunications of gas distribution pipe, thereby possess the advantage that load intensity is high. In addition, the combustor of the technical scheme can use the grid sheets 5 with different grids according to the gas input pressure of regions and the environment and the product demand load before delivery, thereby meeting the demands of different regions on the combustors with different loads.

More specifically, referring to fig. 1-2, the ignition device 4 of the present embodiment further includes a housing 42 and a fixing frame 43 fixedly connected to the housing 42, the ignition needle 41 extends from one end of the housing 42 and is fixedly connected to the housing, at this time, the ignition needle 41 is fixedly connected to the fixing frame 43, and the fixing frame 43 is relatively fixed to the gas distribution pipe 2, so that the ignition needle 41 is fixed to the gas distribution pipe 2. At this time, the position of the ignition needle 41 on the combustion hole 11 is adjusted by adjusting the fixing bracket 43.

In addition, referring to fig. 1-2, the burner of the present embodiment further includes a fixing base 6 sleeved on the gas distribution pipe 2, the fixing base 6 is provided with a first through hole 61 and a first positioning hole 62, a second positioning hole 431 is provided on the fixing base 43, the housing 42 passes through the first through hole 61, and the screw passes through the second positioning hole 431 and the first positioning hole 62, so as to fix the fixing base 43 on the fixing base 6.

The burner body 1 and the gas-distributing pipe 2 of the present embodiment are each preferably provided in a circular tubular shape, and their outer diameter is preferably 25 mm. Specifically, the pipe is easier to process, and gas is easier to mix evenly inside the pipeline for flame is more even and stable on burner port 11 during the burning.

The outer wall of the venturi tube 3 of this embodiment is preferably provided with a reinforcing rib 33 at the middle portion thereof. Specifically, the venturi tube 3 is provided with two inverted circular truncated cone blocks inside, and the contact area of the middle part of the venturi tube is small, so that the reinforcing rib 33 can enhance the connection rigidity of the two inverted circular truncated cone blocks.

The burner body 1 of the present embodiment is provided with seal blocks 12 on both sides. Particularly, be provided with mounting hole 121 on the sealed piece 12, thereby the screw can pass mounting hole 121 and conveniently fix the installation of combustor main part 1, and the during operation can be more stable, security when improving the burning greatly.

Further, referring to fig. 2, the venturi tube 3 of the present embodiment is preferably provided with a vent 34 at one end of the air inlet 32. Specifically, since the gas in the venturi tube 34 is pressurized, the flow rate can be increased, and at this time, the external air can enter the inside of the venturi tube 3 through the vent 34 due to the pressure relationship to be mixed with the gas.

Further, referring to fig. 1-2, the present embodiment further includes a damper regulator 7 having a second through hole 71 in the middle, wherein dampers 72 are disposed on two sides of the damper regulator 7 to regulate the ventilation amount of the ventilation opening 21, the damper regulator 7 is sleeved on the outer wall of the venturi tube 3, the second through hole 71 thereon is communicated with the air inlet 31, the damper 72 thereon is attached to the outer wall of the venturi tube 3 and can rotate, and the area of the damper 72 is larger than the area of the ventilation opening 34. Specifically, the damper adjuster 7 may be rotated on the outer wall of the venturi tube 3, so that the damper 72 may block the vent 21 and control the size of the vent 34, thereby adjusting the ventilation amount of the vent 34.

In addition, referring to fig. 1-2, one end of the damper 72 of the present embodiment is preferably provided with a kidney-shaped hole 721, and a screw is passed through the kidney-shaped hole 721 to fix the damper 72 on the outer wall of the venturi tube 3. Specifically, the damper regulator 7 is rotated on the outer wall of the venturi tube 3, and when the damper 72 regulates the ventilation opening 34 to an appropriate size, the damper regulator 7 is locked to the outer wall of the venturi tube 3 by screws passing through the kidney-shaped holes 721. The waist-shaped hole 721 is arranged, so that the air door regulator 7 can conveniently regulate the size of the vent 34, and can be locked by screws at the moment, and the air door regulator 7 has the advantages of convenience in operation and compact structure.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. A high-strength tubular burner convenient for meeting different loads is characterized by comprising a burner main body (1) which is tubular and has two sealed ends, a gas distribution pipe (2), a Venturi tube (3) and an ignition device (4);

one end of the Venturi tube (3) is provided with an air inlet (31), and the other end of the Venturi tube is provided with an air outlet (32);

one end of the gas distribution pipe (2) is communicated with the interior of the burner main body (1) and is hermetically connected with the burner main body (1), and the other end of the gas distribution pipe (2) is communicated with the gas outlet (31) of the Venturi tube (3) and is hermetically connected with the Venturi tube (3);

a grid sheet (5) is arranged between the inner wall of the gas distribution pipe (2) and the inner wall of the Venturi tube (3);

the combustor main body (1) is provided with a plurality of combustion holes (11) penetrating into the combustor main body (1), the ignition device (4) comprises an ignition needle (41), and the tail end of the ignition needle (41) is adjacent to one of the combustion holes (11);

the gas and the air enter from the gas inlet (31) of the Venturi tube (3), are pressurized by the Venturi tube (3), are discharged from the gas outlet (32), enter the gas distribution tube (2) through the grid sheet (5), and are discharged from the gas distribution tube (2) and enter the inner part of the burner main body (1).

2. A high-strength can-type burner convenient for satisfying various loads as set forth in claim 1 wherein said ignition device (4) further comprises a housing (42) and a fixing frame (43) fixedly connected to said housing (42), said ignition needle (41) is protruded from one end of said housing (42), said fixing frame (43) is fixed relatively to said gas-distributing pipe (2).

3. The high-strength tubular burner convenient for meeting different loads according to claim 2, further comprising a fixing base (6) sleeved on the gas distribution pipe (2), wherein the fixing base (6) is provided with a first through hole (61) and a first positioning hole (62), the fixing frame (43) is provided with a second positioning hole (431), the housing (42) penetrates through the first through hole (61), and a screw penetrates through the second positioning hole (431) and the first positioning hole (62), so that the fixing frame (43) is fixed on the fixing base (6).

4. A high-strength can burner, which is convenient for satisfying various loads, according to claim 1, wherein the burner body (1) is in a circular tube shape.

5. A high-strength tubular burner as set forth in claim 1, characterized in that said gas-distributing pipe (2) is in a circular tubular shape.

6. A high intensity duct burner facilitating the satisfaction of different loads according to claim 1, characterized by that the outer wall of the venturi tube (3) is provided with a reinforcement rib (33) in the middle.

7. A high-strength can burner, which is convenient to satisfy various loads, according to claim 1, wherein the burner body (1) is provided at both sides with sealing blocks (12).

8. A high intensity duct burner facilitating the satisfaction of different loads according to claim 1, characterized in that the venturi tube (3) is provided with a vent (34) to the inside on the outer wall near the end of the air inlet (31).

9. The high-strength tubular burner convenient for meeting different loads according to any one of claims 1 to 8, further comprising a damper regulator (7) provided with a second through hole (71) in the middle, wherein dampers (72) are arranged on two sides of the damper regulator (7) to adjust the ventilation amount of the ventilation opening (21), the damper regulator (7) is attached to and sleeved on the outer wall of the Venturi tube (3) to rotate, and the area of each damper (72) is larger than that of the ventilation opening (34).

10. A high-strength duct burner, which is convenient to satisfy various loads, according to claim 9, wherein one end of the damper regulator (7) is provided with a kidney-shaped hole (721), and a screw fixes the damper (72) to the outer wall of the venturi tube (3) by passing through the kidney-shaped hole (721).