A regenerative burner for heating furnace

Abstract

The present invention discloses a regenerative burner for a heating furnace, mainly relating to the technical field of burners for heating furnaces. It comprises a valve arranged on the burner body to control the flow of gas channels, air channels and smoke channels, and an actuator to control the opening and closing of the valve. The valve comprises a valve body detachably arranged between the gas channels, air channels and smoke channels, and a valve plate slidably arranged on the valve body. The valve plate is respectively provided with a first through hole, a second through hole and a third through hole communicating with the gas channels, air channels and smoke channels. The actuator comprises a fixed frame, and a driving block arranged at the end of the valve plate and extending to the outside of the valve body. The driving block is slidably connected to the fixed frame, and the driving block drives the valve plate to make a gap reciprocating motion. The beneficial effects of the present invention are: solving the problem of needing to separately set an actuator to control the opening and closing of the valve, reducing the cost required for burner manufacturing and the space required for installation.

Description

Technical Field

[0001] The invention relates to the technical field of heating furnace burners, in particular to a heating furnace regenerative burner. Background Art

[0002] Forging is a common process in mechanical processing. In order to achieve certain characteristics, the workpiece needs to be forged at high temperature to obtain such performance. In order to achieve the purpose of heating, most of them will use a heating system, and the most widely used heating system is the heating method of burners or burners. Burners are the common name for the combustion device used in industrial fuel furnaces, which can be understood as "burners for burning fire."

[0003] The burner body of the current heating furnace burner is usually provided with a gas channel and an air channel. The burner body generally adopts an annular tube structure, with a gas channel in the middle and an air channel on the periphery. The gas and air are mixed and burned in the burner body.

[0004] The existing publication (announcement) number CN110160049B discloses a heating furnace regenerative burner, which includes two stages: a regenerative cycle and a combustion cycle;

[0005] During the heat storage period, the valves on the gas channel and the air channel are closed, and the valve on the flue gas channel is opened. The high-temperature flue gas in the furnace enters the heat storage box through the air channel of the burner body. The heat storage body absorbs the heat of the high-temperature flue gas and stores the heat in the heat storage body. After the high-temperature flue gas is mostly absorbed by the heat storage body, it is discharged through the flue gas pipe, thereby storing the waste heat of the high-temperature flue gas of the heating furnace;

[0006] During the combustion cycle, the valves on the gas channel and the air pipe are opened, and the reversing valve on the flue gas pipe is closed. Low-temperature air enters the heat storage box through the air intake pipe and is heated by the heat storage body. The heated air then enters the burner body and mixes with the gas before combustion, thereby preheating the air before ignition and combustion, improving the combustion efficiency of the burner and avoiding energy waste.

[0007] However, currently, it is often necessary to separately set up an actuator to control the opening and closing of the valve, which to a certain extent increases the cost required for manufacturing the actuator and the space required for installation. Summary of the invention

[0008] The object of the present invention is to provide a regenerative burner for a heating furnace, so as to solve the problem that a separate actuator is required to control the opening and closing of a valve, thereby reducing the cost of manufacturing the burner and the space required for its installation.

[0009] In order to achieve the above-mentioned purpose, the invention is implemented through the following technical solutions:

[0010] A regenerative burner for a heating furnace comprises a valve arranged on a burner body for controlling the flow of a gas channel, an air channel and a smoke channel, and an actuator for controlling the opening and closing of the valve, wherein the valve comprises a valve body detachably arranged between the gas channel, the air channel and the smoke channel, and a valve plate slidably arranged on the valve body, wherein a first through hole, a second through hole and a third through hole communicating with the gas channel, the air channel and the smoke channel are respectively arranged on the valve plate, and the actuator comprises a fixing frame and a driving block arranged at an end of the valve plate and extending to the outside of the valve body, wherein the driving block is slidably connected to the fixing frame and drives the valve plate to make a gap reciprocating motion.

[0011] Furthermore, the actuator includes a first turntable rotatably arranged on a fixed frame, a plurality of first limit grooves are provided on the driving block, a first cam is provided on one side of the first turntable, the side surface of the first cam is in contact with the first limit groove and limits the driving block from sliding on the fixed frame; a first shifting rod is provided on the other side of the first turntable, a first shifting groove is provided between two adjacent first limit grooves, the first shifting rod is in contact with the first shifting groove and drives the driving block to slide on the fixed frame.

[0012] Furthermore, it also includes a telescopic cylinder arranged on a fixed frame, and a push block arranged at the movable end of the telescopic cylinder, a plurality of second levers are arranged on one side of the push block, a plurality of first columns are arranged on the first turntable, the side surfaces of the second levers are in contact with the first columns, and drive the first turntable to rotate on the fixed frame.

[0013] Furthermore, the actuator includes a second turntable rotatably set on a fixed frame, one side of the second turntable is rotatably connected to a first connecting block, and an end of the first connecting block is rotatably connected to a driving block; it also includes a second cam rotatably set on the fixed frame, and a first gear set on one side of the second turntable, and the side surface of the second cam is provided with a convex tooth meshing with the first gear.

[0014] Furthermore, it also includes a first motor for driving the second cam to rotate, and a limiting wheel arranged on one side of the second cam. Second limiting grooves are provided on the upper and lower sides of the turntable. The limiting wheel contacts the second limiting grooves and limits the second turntable from rotating on the fixed frame.

[0015] Furthermore, the actuator includes a second column arranged at the end of the driving block, a first shift block is rotatably connected to the fixed frame, the first shift block is provided with a second shift groove that is in sliding contact with the second column, a third turntable is provided on one side of the first shift block, and also includes a third shift rod symmetrically rotatably arranged on the fixed frame, the third turntable is provided with a third shift groove, the two third shift rods are in contact with the second shift grooves in turn, and drive the third turntable to rotate back and forth in the gap on the fixed frame.

[0016] Furthermore, a limit block is provided on one side of the third lever, and a plurality of third limit grooves in contact with the limit block are provided on the side of the third turntable; a second gear is provided at the end of the third lever, and also includes a third gear rotatably arranged on the fixed frame and meshing with the two second gears at the same time.

[0017] Furthermore, a plurality of third columns are provided on one side of the third gear, and a second shift block is rotatably connected to the fixed frame. The side surfaces of the second shift block contact the third columns in sequence and drive the third gear to move in a gap on the fixed frame. The third gear also includes a third motor arranged on the fixed frame, and a fourth gear arranged at the movable end of the third motor. A fifth gear meshing with the fourth gear is provided on one side of the second shift block.

[0018] Furthermore, the end of the valve body is detachably connected to a sealing channel, the upper and lower ends of the sealing channel are respectively provided with sealing blocks, the valve plate is provided with a protrusion slidably set between the two sealing blocks, and the sealing block is provided with a sealing ring in contact with the protrusion.

[0019] Furthermore, the valve body is connected to the gas channel, the air channel, the smoke channel and the sealing channel via flanges.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. During the heat storage period, the third through hole is connected to the flue gas channel through the cooperation between the fixing frame, the driving block, the valve plate and the valve body. The valve plate isolates the gas channel and the air channel, so that the high-temperature flue gas in the furnace enters the heat storage box through the air channel of the burner body. The heat storage body absorbs the heat of the high-temperature flue gas and stores the heat in the heat storage body. After the high-temperature flue gas is mostly absorbed by the heat storage body, it is discharged through the flue gas pipe, thereby storing the waste heat of the high-temperature flue gas of the heating furnace;

[0022] During the combustion cycle, the first through hole and the second through hole are connected to the gas channel and the air channel respectively through the cooperation among the fixing frame, the driving block, the valve plate and the valve body, and the valve plate isolates the flue gas channel, so that the low-temperature air absorbs most of the residual heat on the heat storage body, and then enters the burner body and mixes with the gas before combustion, thereby preheating the air before ignition and combustion, improving the combustion efficiency of the burner and avoiding energy waste;

[0023] 2. The actuator only needs to control the reciprocating sliding of a single valve plate on the valve body to control the opening and closing of the gas channel, air channel and flue gas channel, and realize the switching of the burner combustion state. There is no need to set up multiple actuators to control the opening and closing of the valve, which reduces the cost of burner manufacturing and the space required for installation to a certain extent;

[0024] 3. When the drive block is damaged, there is no need to re-install the valve body, but only need to replace the drive block on the outside, thereby improving the efficiency of maintaining the actuator. At the same time, the drive block can drive the valve plate to make clearance reciprocating motion, without frequently changing the direction of the power device, thereby extending the service life of the power mechanism and simplifying the difficulty of controlling the power device;

[0025] 4. When the first rotating disk rotates counterclockwise on the fixing frame, the driving block is driven to slide upward on the fixing frame through the cooperation among the first cam, the first limiting groove, the driving block, the fixing frame, the first lever and the first groove, driving the valve body to move upward on the valve plate, thereby connecting the flue gas fixing, closing the gas channel and the air channel, so that the burner is in the heat storage cycle. If the first rotating disk is rotated clockwise, the burner is switched to the combustion cycle in the same way, thereby improving the combustion efficiency of the burner and avoiding energy waste;

[0026] At the same time, the first cam and the first limiting groove cooperate to limit the sliding of the driving block on the fixing frame, thereby limiting the sliding of the valve plate on the valve body, avoiding changing the positions of the first through hole, the second through hole and the third through hole, resulting in changes in the opening and closing conditions of the gas channel, the air channel and the smoke channel, thereby increasing the stability of the overall structure and ensuring the stable operation of the combustion cycle or the heat storage cycle;

[0027] 5. The first turntable is driven to rotate on the fixed frame through the cooperation among the telescopic cylinder, the push block, the fixed frame, the push block, the second lever and the first column; in addition, the first turntable is driven to rotate intermittently on the fixed frame through the intermittent reciprocating extension and contraction of the telescopic cylinder, thereby intermittently changing the opening and closing conditions of the gas channel, the air channel and the smoke channel, so that the burner intermittently switches the combustion state, thereby improving the combustion efficiency of the burner and avoiding energy waste; in addition, the timing of switching the combustion state of the burner can be changed by controlling the extension and contraction cycle of the telescopic cylinder, so that the combustion cycle is fully burned and the heat storage cycle is fully stored;

[0028] 6. The second rotary disk is driven to rotate in the gap on the fixed frame through the cooperation among the first motor, the second cam, the fixed frame, the convex teeth and the first gear, and the valve plate is reciprocated on the valve body through the cooperation among the first connecting block, the driving block and the first rotary disk, so as to control the burner to switch the combustion state intermittently, so that the combustion cycle is fully burned and the heat storage cycle is fully stored; in addition, through the cooperation among the rotary disk, the second limiting groove, the second cam and the limiting wheel, the second rotary disk is limited to rotate on the fixed frame to avoid accidentally touching the driving block and changing the combustion state of the burner again, thereby ensuring the stability of the overall structure;

[0029] 7. The third gear is driven to rotate in the gap on the fixed frame through the cooperation among the third motor, the fourth gear, the second shift block, the fifth gear, the second shift block, the third gear, and the third column. The first shift block is driven to rotate up and down in the gap on the fixed frame through the cooperation among the third shift rod, the second gear, the third gear, the limit block, the third limit groove, the driving block, the fixed frame, the third shift groove, the third turntable, and the fixed frame. The combustion state of the burner is periodically switched through the cooperation among the second shift groove, the driving block, the second column, and the fixed frame to improve the combustion efficiency of the burner and avoid energy waste.

[0030] At the same time, the cooperation between the limit block, the third rotating disk and the third limit groove limits the rotation of the driving block on the fixed frame, so as to prevent the driving block from being accidentally touched after the burning state of the burner is switched, thereby changing the burning state of the burner again;

[0031] 8. When the nozzle is in the heat storage state or the combustion state, the valve plate, the protrusion, the sealing channel, the sealing block and the sealing ring cooperate with each other to prevent a large amount of smoke from being discharged directly from the bottom of the valve body, thereby affecting the air quality of the external environment; at the same time, when the valve plate slides on the valve body, the friction between the valve plate and the sealing ring affects the sealing performance of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Attached Figure 1 It is a structural schematic diagram of the burner of the present invention.

[0033] Attached Figure 2 It is a structural schematic diagram of the first turntable of the present invention.

[0034] Attached Figure 3 It is a structural schematic diagram of the push block of the present invention.

[0035] Attached Figure 4 It is a structural schematic diagram of the second turntable of the present invention.

[0036] Attached Figure 5 It is a structural schematic diagram of the second cam of the present invention.

[0037] Attached Figure 6 It is a structural schematic diagram of the limiting wheel of the present invention.

[0038] Attached Figure 7 It is a structural schematic diagram of the second shifting block of the present invention.

[0039] Attached Figure 8 It is a structural schematic diagram of the first shifting block of the present invention.

[0040] Attached Fig. 9 It is a schematic structural diagram of the third turntable of the present invention.

[0041] Attached Fig.10 It is a structural schematic diagram of the sealing channel of the present invention.

[0042] Numbers shown in the accompanying drawings:

[0043] 1. Burner; 2. Gas channel; 3. Air channel; 4. Smoke channel; 5. Valve body; 6. Valve plate; 7. First through hole; 8. Second through hole; 9. Third through hole; 10. Fixing bracket; 11. Driving block;

[0044] 12. first rotating disk; 13. first limiting groove; 14. first cam; 15. first shifting rod; 16. first shifting groove; 17. telescopic cylinder; 18. push block; 19. second shifting rod; 20. first column;

[0045] 21. second rotating disk; 22. first connecting block; 23. second cam; 24. first gear; 25. convex tooth; 26. first motor; 27. limiting wheel; 28. second limiting groove;

[0046] 29, second column; 30, first shift block; 31, second shift slot; 32, third turntable; 33, third shift lever; 34, third shift slot; 35, limit block; 36, third limit slot; 37, second gear; 38, third gear; 39, third column; 40, second shift block; 41, third motor; 42, fourth gear; 43, fifth gear;

[0047] 44. Sealing channel; 45. Sealing block; 46. Protrusion; 47. Sealing ring; 48. Flange; 49. Heat storage box; 50. Heat storage body. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0049] The present invention provides a heating furnace regenerative burner, such as Figure 1 and Figure 2As shown, it includes valves arranged on the burner body 1 to control the flow of the gas channel 2, the air channel 3 and the smoke channel 4, and an actuator to control the opening and closing of the valves. Specifically, the burner body 1 is connected with the gas channel 2, the air channel 3 and the smoke channel 4 respectively. A heat storage box 49 is provided between the burner body 1 and the air channel 3 and the smoke channel 4. A heat storage body 50 is provided in the heat storage box 49. During the heat storage period, the actuator closes the valves on the gas channel 2 and the air channel 3, and opens the valve on the smoke channel 4, so that the high-temperature smoke in the furnace enters the heat storage box 49 through the air channel 3 of the burner body 1, and the heat storage body 50 absorbs the high temperature. The heat of the flue gas is absorbed by the heat storage body 50, and the high-temperature flue gas is discharged through the flue gas pipe after absorbing most of the heat by the heat storage body 50, thereby storing the waste heat of the high-temperature flue gas of the heating furnace; during the combustion cycle, the valves on the gas channel 2 and the air pipe are opened, and the reversing valve on the flue gas pipe is closed, and the low-temperature air enters the heat storage box 49 through the air intake pipe, and is heated by the heat storage body 50. The heated air then enters the burner 1 body and is mixed with the gas before combustion, thereby preheating the air before ignition and combustion, improving the combustion efficiency of the burner 1 and avoiding energy waste;

[0050] The valve comprises a valve body 5 detachably arranged between the gas channel 2, the air channel 3 and the smoke channel 4, and a valve plate 6 slidably arranged on the valve body 5, so as to facilitate subsequent maintenance and replacement of the valve body 5. The valve plate 6 is respectively provided with a first through hole 7, a second through hole 8 and a third through hole 9 which are connected with the gas channel 2, the air channel 3 and the smoke channel 4. During the heat storage period, the third through hole 9 is connected with the smoke channel 4. At the same time, the valve plate 6 isolates the gas channel 2 and the air channel 3, discharges the smoke generated after combustion in the heating box to the outside, and absorbs most of the heat in the smoke through the heat storage body 50, so as to store the residual heat of the high-temperature smoke of the heating furnace; during the combustion period, the valve plate 6 is respectively connected with the gas channel 2 and the air channel 3 through the first through hole 7 and the second through hole 8, so that the low-temperature air absorbs most of the residual heat on the heat storage body 50, and then enters the burner 1 body and mixes with the gas and burns, thereby igniting the air before combustion. The gas is preheated to improve the combustion efficiency of the burner 1 and avoid energy waste. In addition, the actuator only needs to control the reciprocating sliding of a single valve plate 6 on the valve body 5 to control the opening and closing of the gas channel 2, the air channel 3 and the flue gas channel 4, so as to realize the switching of the combustion state of the burner. There is no need to set up multiple actuators to control the opening and closing of the valves, which reduces the cost of manufacturing the burner 1 and the space required for installation to a certain extent. The actuator includes a fixing frame 10 and a driving block 11 arranged at the end of the valve plate 6 and extending to the outside of the valve body 5, so that when the driving block 11 is damaged, there is no need to replace the valve body 5, and only the driving block 11 needs to be replaced on the outside, thereby improving the efficiency of maintaining the actuator. The driving block 11 is slidably connected to the fixing frame 10 and drives the valve plate 6 to make a reciprocating motion. There is no need to frequently change the direction of the power device, which prolongs the service life of the power mechanism and simplifies the difficulty of controlling the power device.

[0051] Preferably, Figure 2 and Figure 3As shown, the actuator includes a first rotating disk 12 rotatably arranged on a fixed frame 10, a plurality of first limiting grooves 13 are arranged on the driving block 11, a first cam 14 is arranged on one side of the first rotating disk 12, a side surface of the first cam 14 contacts with the first limiting groove 13, and limits the driving block 11 from sliding on the fixed frame 10, when the position of the valve plate 6 on the valve body 5 is adjusted, the side surface of the first cam 14 contacts with the first limiting groove 13, and the component force generated limits the driving block 11 from sliding on the fixed frame 10, thereby limiting the sliding of the valve plate 6 on the valve body 5, avoiding changing the positions of the first through hole 7, the second through hole 8 and the third through hole 9, resulting in changes in the opening and closing conditions of the gas channel 2, the air channel 3 and the smoke channel 4, thereby increasing the overall structure. The stability of the structure is ensured to ensure the stable operation of the combustion cycle or the heat storage cycle; a first lever 15 is provided on the other side of the first rotating disk 12, and a first groove 16 is provided between two adjacent first limiting grooves 13, the first lever 15 contacts the first groove 16, and drives the driving block 11 to slide on the fixing frame 10, when it is necessary to switch the combustion state of the burner 1, the first lever 15 contacts the first groove 16, and the component force generated will drive the driving block 11 to slide on the fixing frame 10, and drive the valve body 5 to move on the valve plate 6, thereby changing the opening and closing conditions of the gas channel 2, the air channel 3, and the smoke channel 4, so that the burner 1 can switch between the combustion cycle or the heat storage cycle, thereby improving the combustion efficiency of the burner 1 and avoiding energy waste.

[0052] Preferably, Figure 2 and Figure 3 As shown, the invention also includes a telescopic cylinder 17 disposed on the fixed frame 10, and a push block 18 disposed at the movable end of the telescopic cylinder 17, a plurality of second levers 19 are disposed on one side of the push block 18, a plurality of first columns 20 are disposed on the first turntable 12, the side of the second lever 19 contacts the first columns 20, and drives the first turntable 12 to rotate on the fixed frame 10, and the push block 18 is driven to slide on the fixed frame 10 by the telescopic cylinder 17, so that the second lever 19 disposed on one side of the push block 18 contacts the first columns 20, and the component force generated is The first turntable 12 is driven to rotate on the fixed frame 10; in addition, the telescopic cylinder 17 is intermittently reciprocated to drive the first turntable 12 to intermittently reciprocate on the fixed frame 10, thereby intermittently changing the opening and closing conditions of the gas channel 2, the air channel 3, and the smoke channel 4, so that the burner 1 intermittently switches the combustion state, thereby improving the combustion efficiency of the burner 1 and avoiding energy waste; in addition, the timing of switching the combustion state of the burner 1 can be changed by controlling the extension and contraction cycle of the telescopic cylinder 17, so that it can fully burn during the combustion cycle and fully store heat during the heat storage cycle.

[0053] Preferably, Figure 4 , Figure 5 and Figure 6As shown, the actuator includes a second rotating disk 21 rotatably arranged on the fixed frame 10, one side of the second rotating disk 21 is rotatably connected with a first connecting block 22, and the end of the first connecting block 22 is rotatably connected to the driving block 11. The second rotating disk 21 is rotated on the fixed frame 10. When the second rotating disk 21 drives one end of the first connecting block 22 to move from bottom to top, since the other end of the first connecting block 22 is rotatably connected to the driving block 11, the driving block 11 is driven to move upward on the fixed frame 10, driving the valve plate 6 to slide upward on the valve body 5; when the second rotating disk 21 drives one end of the first connecting block 22 to move from top to bottom, the valve plate 6 is similarly driven to slide downward on the valve body 5, thereby realizing the reciprocating movement of the valve plate 6 on the valve body 5; it also includes a second rotating disk 21 rotatably arranged on the fixed frame 10 The cam 23 and the first gear 24 are arranged on one side of the second turntable 21. The side of the second cam 23 is provided with a convex tooth 25 meshing with the first gear 24. The second cam 23 rotates on the fixed frame 10, so that the convex tooth 25 provided on one side thereof is meshed with the first gear 24, thereby driving the second turntable 21 to rotate on the fixed frame 10, so that the valve plate 6 makes intermittent reciprocating movements on the valve body 5, and then periodically switches the combustion state of the burner 1, improves the combustion efficiency of the burner 1, and avoids energy waste; at the same time, by changing the number of teeth of the convex tooth 25, the second turntable 21 is driven to rotate half a circle for each rotation of the second cam 23, thereby controlling the intermittent switching of the combustion state of the burner 1, so that it is fully burned during the combustion cycle and fully heat stored during the heat storage cycle.

[0054] Preferably, Figure 4 , Figure 5 and Figure 6 As shown, it also includes a first motor 26 for driving the second cam 23 to rotate, and a limiting wheel 27 arranged on one side of the second cam 23. The first motor 26 provides power for the rotation of the second cam 23. In order to switch the state of the burner 1 and accidentally touch the driving block 11 to change the combustion state of the burner 1 again, second limiting grooves 28 are provided on the upper and lower sides of the second turntable 21. At the same time, the limiting wheel 27 contacts the second limiting groove 28 to limit the second turntable 21 from rotating on the fixed frame 10, thereby ensuring the stability of the overall structure.

[0055] Preferably, Figure 7 , Figure 8 and Fig. 9As shown, the actuator includes a second column 29 arranged at the end of the driving block 11, and the fixing frame 10 is rotatably connected with a first shift block 30, and the first shift block 30 is provided with a second shift groove 31 which is in sliding contact with the second column 29. The first shift block 30 is rotated up and down in a gap on the fixing frame 10, and the second shift groove 31 is in sliding contact with the second column 29 arranged at the end of the driving block 11. The component force generated drives the driving block 11 to slide up and down on the fixing frame 10, thereby periodically switching the combustion state of the burner 1, improving the combustion efficiency of the burner 1, and avoiding energy waste; the first shift block 30 is rotated up and down in a gap on the fixing frame 10, and the second shift groove 31 is in sliding contact with the second column 29 arranged at the end of the driving block 11. A third turntable 32 is provided on one side of the block 30, and also includes a third lever 33 symmetrically rotatably arranged on the fixed frame 10, and a third shifting groove 34 is provided on the third turntable 32. The two third levers 33 contact the second shifting grooves 31 in turn, and drive the third turntable 32 to reciprocate in the gap on the fixed frame 10, thereby driving the first shift block 30 to reciprocate in the gap on the fixed frame 10, thereby periodically switching the combustion state of the burner 1, improving the combustion efficiency of the burner 1, and avoiding energy waste; in addition, by setting the interval between the swings of the two third levers, the time of one cycle of the burner 1 is set.

[0056] Preferably, Figure 7 , Figure 8 and Fig. 9 As shown, a limit block 35 is provided on one side of the third lever 33, and a plurality of third limit grooves 36 contacting the limit block 35 are provided on the side of the third rotating disk 32. The limit block 35 contacts the third limit groove 36, and the component force generated limits the rotation of the third rotating disk 32 on the fixing frame 10, thereby limiting the rotation of the driving block 11 on the fixing frame 10, so as to prevent the driving block 11 from accidentally touching the driving block 11 after the combustion state of the burner 1 is switched, and the combustion state of the burner 1 is changed again; a second gear 37 is provided on the end of the third lever 33, and also includes a third gear 38 rotatably arranged on the fixing frame 10 and meshing with the two second gears 37 at the same time. By rotating the third gear 38 on the fixing frame 10, the third gear 38 meshes with the second gear 37, thereby driving the two second gears 37 to rotate on the fixing frame 10 at the same time, and driving the two third levers 33 to contact the second grooves 31 in turn, so as to periodically switch the combustion state of the burner 1, improve the combustion efficiency of the burner 1, and avoid energy waste.

[0057] Preferably, Figure 7 , Figure 8 and Fig. 9As shown, a plurality of third columns 39 are provided on one side of the third gear 38, and a second shift block 40 is rotatably connected to the fixed frame 10. The side surfaces of the second shift block 40 contact the third columns 39 in turn, and drive the third gear 38 to move in a gap on the fixed frame 10, thereby periodically driving the third gear 38 to rotate on the fixed frame 10, and by setting the transmission ratio of the second gear 37 and the third gear 38, when the third gear 38 is rotated once, the two third shift rods 33 are driven to rotate half a circle, and the combustion state of the burner 1 is switched once; it also includes a third motor 41 arranged on the fixed frame 10, and a fourth gear 42 arranged at the movable end of the third motor 41, and a fifth gear 43 meshing with the fourth gear 42 is provided on one side of the second shift block 40, thereby driving the second shift block 40 to rotate on the fixed frame 10.

[0058] Preferably, Figure 2 and Fig.10 As shown, the end of the valve body 5 is detachably connected with a sealing channel 44, and sealing blocks 45 are respectively provided at the upper and lower ends of the sealing channel 44. The valve plate 6 is provided with a protrusion 46 slidably set between the two sealing blocks 45, and the sealing block 45 is provided with a sealing ring 47 in contact with the protrusion 46, so as to prevent the smoke from being directly discharged from the bottom of the valve body 5 in the combustion state or the heat storage state, thereby affecting the quality of the external air; at the same time, it is prevented that when the valve plate 6 slides on the valve body 5, the friction between the valve plate 6 and the sealing ring 47 affects the sealing performance of the sealing ring 47.

[0059] Preferably, Figure 1 and Fig.10 As shown, the valve body 5 is connected to the gas channel 2, the air channel 3, the smoke channel 4, and the sealing channel 44 via a flange 48, which facilitates the removal of the valve body 5 from the gas channel 2, the air channel 3, the smoke channel 4, and the sealing channel 44, or the removal of the sealing channel 44 from the valve body 5, thereby facilitating subsequent maintenance.

[0060] Example 1

[0061] The present invention provides a heating furnace regenerative burner, such as Figure 1 and Figure 2 As shown, the valve body 5 is detachably arranged between the gas channel 2, the air channel 3 and the smoke channel 4, the valve plate 6 is slidably arranged on the valve body 5, and the driving block 11 is connected to the valve body 5 and extends to the outside of the valve body 5;

[0062] During the heat storage period, the driving block 11 is slid upward on the fixing frame 10 to drive the valve plate 6 to slide upward on the valve body 5, so that the third through hole 9 is connected with the flue gas channel 4, and the valve plate 6 isolates the gas channel 2 and the air channel 3, so that the high-temperature flue gas in the furnace enters the heat storage box 49 through the air channel 3 of the burner 1 body, and the heat storage body 50 absorbs the heat of the high-temperature flue gas and stores the heat in the heat storage body 50. After the high-temperature flue gas is mostly absorbed by the heat storage body 50, it is discharged through the flue gas pipe, thereby storing the waste heat of the high-temperature flue gas of the heating furnace;

[0063] During the combustion cycle, the driving block 11 is slid downward on the fixing frame 10 to drive the valve plate 6 to slide downward on the valve body 5, so that the first through hole 7 and the second through hole 8 are connected to the gas channel 2 and the air channel 3 respectively, and the valve plate 6 isolates the flue gas channel 4, so that the low-temperature air absorbs most of the residual heat on the heat storage body 50, and then enters the burner 1 body and mixes with the gas before combustion, thereby preheating the air before ignition and combustion, improving the combustion efficiency of the burner 1 and avoiding energy waste; in addition, the actuator only needs to control the reciprocating sliding of the single valve plate 6 on the valve body 5 to control the opening and closing of the gas channel 2, the air channel 3 and the flue gas channel 4, thereby realizing the switching of the burner combustion state, and there is no need to set up multiple actuators to control the opening and closing of the valves, which reduces the cost of manufacturing the burner 1 and the space required for installation to a certain extent;

[0064] In addition, when the drive block 11 is damaged, there is no need to replace the valve body 5, only the drive block 11 needs to be replaced on the outside, thereby improving the efficiency of maintaining the actuator. At the same time, the drive block 11 can drive the valve plate 6 to make intermittent reciprocating motion, and there is no need to frequently change the direction of the power device, thereby extending the service life of the power mechanism and simplifying the difficulty of controlling the power device.

[0065] Example 2

[0066] On the basis of Example 1, Figure 2 and Figure 3 As shown, when the burning state of the burner 1 needs to be switched, the push block 18 is driven to slide on the fixed frame 10 by the telescopic cylinder 17, so that the second lever 19 provided on one side of the push block 18 contacts the first column 20, and the component force generated drives the first turntable 12 to rotate on the fixed frame 10;

[0067] When the first rotating disk 12 rotates counterclockwise on the fixing frame 10, the first cam 14 slides out of the first limiting groove 13, releasing the restriction on the sliding of the driving block 11 on the fixing frame 10. At the same time, the first lever 15 contacts the upper side of the first lever groove 16, and drives the driving block 11 to slide upward on the fixing frame 10, driving the valve body 5 to move upward on the valve plate 6, thereby connecting the flue gas fixing, closing the gas channel 2 and the air channel 3, and putting the burner 1 in the heat storage period. Then, the side of the first cam 14 contacts the first limiting groove 13. The component force generated by the first rotating disk 12 restricts the driving block 11 from sliding on the fixing frame 10, thereby restricting the valve plate 6 from sliding on the valve body 5, avoiding changing the positions of the first through hole 7, the second through hole 8 and the third through hole 9, resulting in changes in the opening and closing conditions of the gas channel 2, the air channel 3 and the smoke channel 4, thereby increasing the stability of the overall structure and ensuring that the combustion cycle or the heat storage cycle can run stably; if the first rotating disk 12 is rotated clockwise, the burner 1 is switched to the combustion cycle in the same way, thereby improving the combustion efficiency of the burner 1 and avoiding energy waste;

[0068] In addition, the telescopic cylinder 17 is intermittently reciprocated and extended to drive the first turntable 12 to intermittently reciprocate on the fixed frame 10, thereby intermittently changing the opening and closing conditions of the gas channel 2, the air channel 3, and the smoke channel 4, so that the burner 1 intermittently switches the combustion state, thereby improving the combustion efficiency of the burner 1 and avoiding energy waste; in addition, the timing of switching the combustion state of the burner 1 can be changed by controlling the extension and contraction cycle of the telescopic cylinder 17, so that sufficient combustion can be achieved during the combustion cycle and sufficient heat can be stored during the heat storage cycle.

[0069] Example 3

[0070] On the basis of Example 1, Figure 4 , Figure 5 and Figure 6 As shown, when the combustion state of the burner 1 needs to be switched, the second cam 23 is driven to rotate on the fixed frame 10 by the first motor 26, so that the convex teeth 25 provided on one side thereof are meshed with the first gear 24, thereby driving the second rotary disk 21 to rotate on the fixed frame 10, and changing the number of teeth of the convex teeth 25, so that each time the second cam 23 is rotated one circle, the second rotary disk 21 is driven to rotate half a circle, when the second rotary disk 21 drives one end of the first connecting block 22 to move from bottom to top, since the other end of the first connecting block 22 is connected by rotation, the driving block 11 is driven to move upward on the fixed frame 10, driving the valve plate 6 to slide upward on the valve body 5; when the second rotary disk 21 drives one end of the first connecting block 22 to move from top to bottom, the valve plate 6 is driven to slide downward on the valve body 5 in the same way, thereby realizing the reciprocating movement of the valve plate 6 on the valve body 5, and then controlling the burner 1 to intermittently switch the combustion state, so that it is fully burned during the combustion cycle and fully stored in the heat storage cycle;

[0071] In addition, in order to change the combustion state of the burner 1 again by accidentally touching the driving block 11 after switching the state of the burner 1, second limit grooves 28 are provided on the upper and lower sides of the second turntable 21. At the same time, a limit wheel 27 provided on one side of the second cam 23 contacts the second limit groove 28 to limit the rotation of the second turntable 21 on the fixed frame 10, thereby ensuring the stability of the overall structure.

[0072] Example 4

[0073] On the basis of Example 1, Figure 7 , Figure 8 and Fig. 9 As shown, when the combustion state of the burner 1 needs to be switched, the fourth gear 42 is driven to rotate by the third motor 41. Since a fifth gear 43 meshing with the fourth gear 42 is provided on one side of the second shift block 40, the second shift block 40 is driven to rotate on the fixed frame 10. When the second shift block 40 rotates one circle clockwise, when the side surface of the second shift block 40 contacts the third column 39 on the third gear 38, the third gear 38 is driven to rotate 1 / 4 circle on the fixed frame 10. Then, the second shift block 40 idles until it contacts the next third column 39, thereby driving the third gear 38 to rotate intermittently on the fixed frame 10. Since a second gear 37 is provided at the end of the third shift rod 33, and the third gear 38 meshes with the two second gears 37 at the same time, the two second shift rods 19 are driven to perform intermittent motion at the same time, and the two shift rods rotate in opposite directions. At the same time, by setting the transmission ratio of the second gear 37 and the third gear 38, when the third gear 38 is rotated once, the two third shift rods 33 are driven to rotate half a circle, thereby switching the combustion state of the burner 1 once.

[0074] When one of the third levers 33 rotates half a circle counterclockwise, the limiting block 35 provided on one side thereof slides out of the third limiting groove 36, and the restriction on the rotation of the driving block 11 on the fixing frame 10 is released, and the other third lever 33 rotates clockwise and contacts the third lever groove 34, and the component force generated drives the third rotating disk 32 to rotate counterclockwise on the fixing frame 10; then the limiting block 35 provided on the other third lever 33 contacts another third limiting groove 36 on the third rotating disk 32, and the resistance generated by the contact between the two further restricts the rotation of the driving block 11 on the fixing frame 10, so as to prevent the driving block 11 from being accidentally touched after the combustion state of the burner 1 is switched, thereby changing the combustion state of the burner 1 again;

[0075] Subsequently, when one of the third levers 33 rotates half a circle counterclockwise again, the limit block 35 of the other third lever 33 slides out of the other third limit groove 36, and contacts with the third groove 34 through one of the third levers 33, driving the third turntable 32 to rotate clockwise on the fixed frame 10, thereby driving the third turntable 32 to rotate reciprocatingly on the fixed frame 10, driving the first lever block 30 on the other side to rotate up and down in the gap on the fixed frame 10, and slidingly contacts with the second column 29 provided at the end of the driving block 11 through the second groove 31, and the generated component force drives the driving block 11 to slide up and down on the fixed frame 10, thereby periodically switching the combustion state of the burner 1, improving the combustion efficiency of the burner 1, and avoiding energy waste.

[0076] Example 5

[0077] On the basis of Example 1, Figure 1 and Fig.10 As shown, when the valve plate 6 moves upward on the valve body 5, the smoke channel 4 is connected to the third through hole 9, and then the smoke after the heat is absorbed by the heat storage body 50 will also be discharged from the smoke pipe. In order to prevent the smoke from being discharged from the bottom of the valve body 5, a sealing channel 44 is provided at the end of the valve body 5, and the protrusion 46 on the valve plate 6 contacts the sealing ring 47 provided on the sealing block 45 at the top of the sealing channel 44, so as to prevent a large amount of smoke from being directly discharged from the bottom of the valve body 5 and affecting the air quality of the external environment; when the valve plate 6 moves downward on the valve body 5, so that the burner 1 is switched to the combustion state, the valve plate 6 contacts the sealing ring 47 provided on the sealing block 45 at the bottom through the partition, so as to prevent the smoke remaining in the smoke channel 4 from being directly discharged from the bottom of the valve body 5 and affecting the air quality of the external environment; at the same time, when the valve plate 6 slides on the valve body 5, it is prevented that the friction between the valve plate 6 and the sealing ring 47 affects the sealing performance of the sealing ring 47.

Claims

1. A regenerative burner for a heating furnace, comprising a valve arranged on a burner body (1) for controlling the flow of a gas channel (2), an air channel (3) and a smoke channel (4), and an actuator for controlling the opening and closing of the valve, characterized in that: The valve comprises a valve body (5) detachably arranged between a gas passage (2), an air passage (3) and a smoke passage (4), and a valve plate (6) slidably arranged on the valve body (5); the valve plate (6) is provided with a first through hole (7), a second through hole (8) and a third through hole (9) respectively connected to the gas passage (2), the air passage (3) and the smoke passage (4); the actuator comprises a fixing frame (10) and a driving block (11) arranged at an end of the valve plate (6) and extending to the outside of the valve body (5); the driving block (11) is slidably connected to the fixing frame (10) and drives the valve plate (6) to perform reciprocating motion with clearance; The end of the valve body (5) is detachably connected to a sealing channel (44), and sealing blocks (45) are respectively provided at the upper and lower ends of the sealing channel (44). The valve plate (6) is provided with a protrusion (46) slidably arranged between the two sealing blocks (45), and the sealing block (45) is provided with a sealing ring (47) in contact with the protrusion (46).

2. A heating furnace regenerative burner according to claim 1, characterized in that: The actuator comprises a first rotating disk (12) rotatably arranged on a fixed frame (10); a plurality of first limiting grooves (13) are arranged on the driving block (11); a first cam (14) is arranged on one side of the first rotating disk (12); a side surface of the first cam (14) contacts the first limiting groove (13) and limits the driving block (11) from sliding on the fixed frame (10); a first shifting rod (15) is arranged on the other side of the first rotating disk (12); a first shifting groove (16) is arranged between two adjacent first limiting grooves (13); the first shifting rod (15) contacts the first shifting groove (16) and drives the driving block (11) to slide on the fixed frame (10).

3. A heating furnace regenerative burner according to claim 2, characterized in that: The invention also comprises a telescopic cylinder (17) arranged on a fixed frame (10), and a push block (18) arranged at a movable end of the telescopic cylinder (17), a plurality of second levers (19) being arranged on one side of the push block (18), a plurality of first upright posts (20) being arranged on the first rotating disk (12), a side surface of the second lever (19) being in contact with the first upright posts (20), and driving the first rotating disk (12) to rotate on the fixed frame (10).

4. The regenerative burner for a heating furnace according to claim 1, characterized in that: The actuator comprises a second rotating disk (21) rotatably mounted on a fixed frame (10), a first connecting block (22) being rotatably connected to one side of the second rotating disk (21), an end of the first connecting block (22) being rotatably connected to a driving block (11); and a second cam (23) rotatably mounted on the fixed frame (10), and a first gear (24) mounted on one side of the second rotating disk (21), a convex tooth (25) meshing with the first gear (24) being provided on a side surface of the second cam (23).

5. A heating furnace regenerative burner according to claim 4, characterized in that: It also includes a first motor (26) for driving the second cam (23) to rotate, and a limiting wheel (27) arranged on one side of the second cam (23), and second limiting grooves (28) are provided on both upper and lower sides of the second rotating disk (21), and the limiting wheel (27) is in contact with the second limiting grooves (28) to limit the second rotating disk (21) from rotating on the fixing frame (10).

6. The regenerative burner for a heating furnace according to claim 1, characterized in that: The actuator comprises a second column (29) arranged at the end of the driving block (11); a first shifting block (30) is rotatably connected to the fixed frame (10); a second shifting groove (31) is provided on the first shifting block (30) and is in sliding contact with the second column (29); a third rotating disk (32) is provided on one side of the first shifting block (30); and a third shifting rod (33) is symmetrically rotatably arranged on the fixed frame (10); a third shifting groove (34) is provided on the third rotating disk (32); two third shifting rods (33) are in contact with the second shifting groove (31) in sequence, and drive the third rotating disk (32) to rotate back and forth on the fixed frame (10).

7. A heating furnace regenerative burner according to claim 6, characterized in that: A stop block (35) is provided on one side of the third lever (33), and a plurality of third stop slots (36) in contact with the stop block (35) are provided on the side of the third rotating disk (32); a second gear (37) is provided at the end of the third lever (33), and further comprises a third gear (38) rotatably arranged on the fixing frame (10) and meshing with the two second gears (37).

8. The regenerative burner for a heating furnace according to claim 7, characterized in that: A plurality of third columns (39) are provided on one side of the third gear (38); a second shift block (40) is rotatably connected to the fixed frame (10); the side surfaces of the second shift block (40) are in contact with the third columns (39) in sequence and drive the third gear (38) to move in a gap on the fixed frame (10); and the third gear (42) is provided on the fixed frame (10); and a fifth gear (43) meshing with the fourth gear (42) is provided on one side of the second shift block (40).

9. The regenerative burner for a heating furnace according to claim 1, characterized in that: The valve body (5) is connected to the gas passage (2), the air passage (3), the smoke passage (4), and the sealing passage (44) via flanges (48).

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