Combustor gas mixing device

Abstract

The utility model discloses a gas mixing device of a burner, which comprises a sleeve communicated with a gas inlet pipe, a mouse cage sleeve communicated in the sleeve, an electric top cylinder connected with one side of the mouse cage sleeve, and a cyclone device in transmission connection with the other side of the mouse cage sleeve, one side of the cyclone device is communicated with the air outlet end of the pneumatic motor, the other side of the cyclone device is in transmission connection with the output end of the pneumatic motor, and a flow limiting device is arranged at the air outlet end of the cyclone device. The transmission shaft not only can transmit gas, but also can be driven to horizontally move so as to control the gas displacement, and can drive the cyclone device to rotate so as to fully mix the gas and air and achieve the required combustion mixing ratio and flame combustion form, the structure is simple and compact, the air exhausted by the pneumatic motor is fully utilized, and the combustion efficiency is improved. The cost is saved; and the use stability of jet flame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-fired thermal power generation, in particular to a burner gas mixing device. Background Art

[0002] At present, gas-fired power generation usually directly inputs air and gas into the combustion chamber for ignition. Since the air and gas pipes are set separately and there is no relevant setting for mixing each other, they just flow and mix naturally in the combustion chamber. Therefore, the combustion mixture ratio of the gas is not stable, which directly affects the stability of the length of the flame formed. In addition, since gas intake pipes are usually required to be set at multiple angles around the combustion chamber, the intake direction of each gas pipe is fixed, and a "W"-shaped flame combustion method is formed. However, due to the insufficient stability of the flame length, the efficiency of gas-fired power generation is generally low. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a burner gas mixing device which is convenient for fully mixing air and fuel gas and for adjusting the length of the spray flame.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a burner gas mixing device, including a sleeve connected to the gas intake pipe and a squirrel cage sleeve connected to the sleeve, an electric top cylinder connected to one side of the squirrel cage sleeve and a cyclone device connected to the other side of the squirrel cage sleeve in a transmission manner, the squirrel cage sleeve includes a first fixed block and a second fixed block connected to the cyclone device, the cyclone device includes a transmission shaft inserted in the sleeve and threadedly connected to the second fixed block, an inner gear disk sleeved on the outside of the transmission shaft and a connecting tube fixedly sleeved on the outside of the inner gear disk, a connecting hole is provided on the second fixed block, an air guide hole connected to the connecting hole is provided on the transmission shaft, and one side of the transmission shaft is sleeved with a transmission connection to the output end of the pneumatic motor The axial flow direction of the axial flow tube of the cyclone device is axially extending along the longitudinal direction of the cyclone device, and the axial flow direction of the cyclone device is axially extending along the longitudinal direction of the cyclone device.

[0005] With the above structure, a blower connected to the cyclone device can supplement air so that the proportion of the mixed gas meets the requirements for combustion use; the ventilation device is provided to facilitate the guiding and output of the gas on the one hand, and can also drive the axial movement of the cyclone device on the other hand. The cyclone device driven by the pneumatic motor uses the rotating state to fully mix the gas and the air discharged from the pneumatic motor; the electric top cylinder is provided to cooperate with the flow limiting device to adjust the exhaust volume so as to adjust the flame length. On the premise of ensuring safety, resources are fully utilized and the mixing ratio of gas and air is ensured so that the flame jet achieves a better use effect.

[0006] To facilitate meeting the needs of rotation and axial movement while providing gas guiding input, as a preference, a plurality of support plates are connected and provided between the two fixed blocks, and ventilation holes are provided on the side walls of each support plate; a fixed sleeve is screwed on one side of the sleeve; a support rod with one end connected to the output end of the electric top cylinder is passed through the fixed sleeve, a ball head is provided at the passing-out end of the support rod, and a slot is provided at the position corresponding to the ball head on the first fixed block, and the ball head is embedded in the slot.

[0007] To ensure horizontal movement while the transmission shaft is rotating and avoid interference of the horizontal movement, as a preference, the driving gear connected to the output end of the pneumatic motor is meshed with the driving gear, a positioning slot is provided at the position corresponding to the driving gear on the transmission shaft, a positioning block is inserted into the positioning slot, a relief slot is provided at the position corresponding to the positioning block on the driving gear, one side of the positioning block protrudes out of the positioning slot and extends into the relief slot, a fixing ring sleeved on the transmission shaft is screwed on one side of the driving gear, a thrust ball bearing sleeved on the transmission shaft is embedded on the other side, a connecting ring screwed to the air flow distribution sleeve is abutted against the outer side of the thrust ball bearing, a bent section is wound along the circumferential direction on one side of the connecting ring, the bent section extends into the driving gear and the inner side wall of the bent section abuts against the outer side wall of the thrust ball bearing, so that the driving gear rotates synchronously with the transmission shaft and can move horizontally synchronously with the support rod.

[0008] To make full use of gas resources and ensure uniform gas supply in each air outlet direction, as a preference, an exhaust pipe is connected to the air outlet end of the pneumatic motor, an annular air cylinder wound around the outside of the connecting cylinder is connected to the air outlet end of the exhaust pipe, a plurality of branch pipes are connected to the annular air cylinder along the circumferential direction, and the air outlet ends of the plurality of branch pipes are connected and provided with the annular through groove.

[0009] In order to ensure the synchronous rotation of the outlet pipes and sufficient compensation of the air, preferably, the cyclone device also includes a planetary gear disk mounted on the transmission shaft and a plurality of planetary gears meshingly connected on the inner gear disk, and the plurality of planetary gears are meshingly connected with the center gear mounted on the transmission shaft; the outlet ends of the first outlet pipe and the second outlet pipe are both horizontally passed through the planetary gear disk, and the first outlet pipe is also passed through the planetary gears at the corresponding positions after passing through the planetary gear disk, and a connecting bearing is also embedded in the planetary gear at the position corresponding to the penetration of the first outlet pipe, and the first outlet pipe is sleeved and connected with the middle through hole of the connecting bearing.

[0010] In order to fully mix the fuel gas with the air discharged from the outside, preferably, a flame-stabilizing hood is threadedly provided on the inner gear disc, and a first air generator, an ignition needle and a second air generator located outside the first air generator are provided in the flame-stabilizing hood, the second air generator emerges from the outlet end of the first air generator, a baffle is provided around the edge of the outlet end of the first air generator in a circumferential direction, and a plurality of air holes are provided on the baffle in a circumferential direction; a first cavity connected with the first outlet pipe sleeve is provided in the first air generator, an inwardly concave groove is provided on the side of the first air generator corresponding to the outlet direction, and a plurality of first guide grooves connected with the first cavity are provided on the groove wall in the circumferential direction.

[0011] In order to fully mix the fuel gas with the air discharged from the inside, preferably, a second cavity connected to the second air outlet pipe is provided on the second air generator, a plurality of air diffusion holes connected to the second cavity are arranged around the end face of the air outlet end of the second air generator in a circumferential direction, a tapered through hole which is larger on the outside and smaller on the inside and connected to the groove is provided in the middle of the second air generator, a plurality of second guide grooves are provided in a circumferential direction on the hole wall of the large hole end of the tapered through hole, and an exhaust hole connected to the second cavity is provided at the bottom of each of the second guide grooves; the air outlet end of the transmission shaft extends into the tapered through hole through the first air generator, a nozzle is sleeved on the extending end of the transmission shaft, a tapered hole connected to the air guide hole is provided on the nozzle, and a plurality of spiral air channels are provided in a circumferential direction on the hole wall of the tapered hole.

[0012] In order to facilitate the adjustment of the discharge volume of the gas, preferably, the flow limiting device includes a mixing disk arranged in the flame stabilizing hood and screwed to the nozzle, a plurality of mixing flow holes are arranged on the mixing disk along the circumferential direction, a threaded sleeve is fixedly provided in the middle of the mixing disk, a shield body is screwed on the threaded sleeve, a conical block is provided at the non-threaded end of the shield body, and the small diameter end of the conical block extends into the conical hole.

[0013] Beneficial effects: The drive shaft of the present utility model can not only transmit gas, but also be driven to move horizontally to control the gas displacement, and can also drive the cyclone device to rotate so that the gas and air are fully mixed, and the required combustion mixture ratio and flame combustion form are achieved. The structure is simple and compact, the air discharged by the pneumatic motor is fully utilized, the cost is saved, and the use stability of the flame jet is improved. Description of the drawings

[0014] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0015] Figure 1 It is a schematic installation structure diagram of the present utility model.

[0016] Figure 2 It is Figure 1 The sectional view taken along the line A-A in

[0017] Figure 3 It is Figure 1 The enlarged view at B in

[0018] Figure 4 It is Figure 1 The enlarged view at C in

[0019] Figure 5 It is Figure 1 The enlarged view at D in

[0020] Figure 6 It is a schematic structure diagram of the drive shaft installation assembly.

[0021] Figure 7 It is a schematic structure diagram of the squirrel cage sleeve.

[0022] Figure 8 It is a schematic installation structure diagram of the boss.

[0023] Figure 9 It is a schematic installation structure diagram of the annular air cylinder.

[0024] Figure 10 It is a schematic structure diagram of the first air generator.

[0025] Figure 11 It is a schematic structure diagram of the second air generator.

[0026] Figure 12 It is a schematic structure diagram of the planetary gear disc.

[0027] Figure 13 It is a schematic structure diagram of the nozzle.

[0028] Figure 14It is a schematic structural diagram of a mixed flow disk.

[0029] Figure 15 It is a schematic installation structure diagram of a mixed flow disk.

[0030] The meanings of the reference numerals in the drawings are as follows:

[0031] Air cylinder - 1; Gas inlet pipe - 10; Electric jack - 11; Fan - 12; Sleeve - 13; First fixing block - 141; Fixing sleeve - 142; Second fixing block - 143; Support plate - 144; Vent hole - 145; Support rod - 15; Ball head - 151; Connecting cylinder - 16; Internal gear disk - 161; Planet gear - 162; Connecting bearing - 163; Planet gear disk - 17; Central gear - 18; Flame stabilizing cover - 19; Flame sensing needle - 191;

[0032] Drive shaft - 2; Driving gear - 20; Positioning block - 201; Bearing - 21; Fixed ring - 22; Thrust ball bearing - 23; Connecting ring - 24; Bent section - 241; Driving gear - 25; Nozzle - 26; Conical hole - 261; Spiral air duct - 262; Air guide hole - 27;

[0033] Pneumatic motor - 3; Exhaust pipe - 30; Annular air cylinder - 31; Branch air pipe - 32; Air flow distribution sleeve - 4; Boss - 40; Vent groove - 401; Air hole - 402; First air outlet pipe - 41; Second air outlet pipe - 42;

[0034] First air generator - 5; Second air generator - 50; Baffle - 501; Vent hole - 502; First cavity - 51; Second cavity - 52; Diffusion air hole - 53; Ignition needle - 54; First guide groove - 61; Second guide groove - 62; Exhaust hole - 71;

[0035] Mixed flow disk - 8; Threaded sleeve - 80; Shield body - 81; Tapered block - 82; Mixed flow through hole - 83. Specific implementation mode

[0036] As Figures 1 to 15 shown, the utility model includes a sleeve 13 communicated with a gas inlet pipe 10 and a squirrel cage sleeve communicated in the sleeve 13, an electric jack 11 connected to one side of the squirrel cage sleeve, and a cyclone device drivingly connected to the other side of the squirrel cage sleeve. One side of the cyclone device is communicated with the air outlet end of a pneumatic motor 3, and the other side is drivingly connected to the output end of the pneumatic motor 3. A flow limiting device is arranged at the air outlet end of the cyclone device.

[0037] Specifically, the squirrel cage includes a first fixed block 141 and a second fixed block 143 connected to the cyclone device, a plurality of support plates 144 are connected between the two fixed blocks, and a vent 145 is provided on the side wall of each support plate 144; a fixed sleeve 142 is threadedly provided on one side of the sleeve 13; a support rod 15 connected to the output end of the electric top cylinder 11 on one side is passed through the fixed sleeve 142, a ball head 151 is provided at the protruding end of the support rod 15, and an embedding groove is provided at the position corresponding to the ball head 151 on the first fixed block 141, and the ball head 151 is embedded in the embedding groove.

[0038] The cyclone device includes a transmission shaft 2 inserted in a sleeve 13 and threadedly connected to a second fixed block 143, an inner toothed disc 161 sleeved on the outside of the transmission shaft 2, and a connecting tube 16 fixedly sleeved on the outside of the inner toothed disc 161. A connecting hole is provided on the second fixed block 143, and an air guide hole 27 connected to the connecting hole is provided on the transmission shaft 2. A driving tooth 20 connected to the output end of the pneumatic motor 3 is sleeved on one side of the transmission shaft 2, and an air flow distribution sleeve 4 is connected to one side of the driving tooth 20. A bearing 21 sleeved on the outside of the transmission shaft 2 is embedded in the air flow distribution sleeve 4. A hollow boss 40 is provided on one side of the air flow distribution sleeve 4, and a ventilation groove 401 connected to the air outlet end of the pneumatic motor 3 is provided on the outer wall of the boss 40 in the circumferential direction. The ventilation groove 401 and the inner cylinder wall of the inner gear disk 161 together form an annular through groove, and an air hole 402 connected to the hollow position of the boss 40 is provided at the bottom of the ventilation groove 401. A plurality of first air outlet pipes 41 and second air outlet pipes 42 connected to the hollow position are penetrated on the side wall of one side of the boss 40 in the circumferential direction, and the plurality of first air outlet pipes 41 and second air outlet pipes 42 are arranged at intervals from each other.

[0039] At the same time, the active tooth 20 is meshed and connected with the transmission tooth 25 connected to the output end of the pneumatic motor 3. A positioning groove is provided at the position corresponding to the active tooth 20 on the transmission shaft 2, and a positioning block 201 is inserted in the positioning groove. A clearance groove is provided at the position corresponding to the positioning block 201 on the active tooth 20. One side of the positioning block 201 protrudes from the positioning groove and extends into the clearance groove. A fixing ring 22 sleeved on the transmission shaft 2 is threadedly connected on one side of the active tooth 20, and a thrust ball bearing 23 sleeved on the transmission shaft 2 is embedded on the other side. A connecting ring 24 threadedly connected to the airflow distribution sleeve 4 is abutted on the outer side of the thrust ball bearing 23. A bending section 241 is circumferentially arranged on one side of the connecting ring 24. The bending section 241 extends into the active tooth 20 and the inner side wall of the bending section 241 overlaps the outer side wall of the thrust ball bearing 23, so that the active tooth 20 rotates synchronously with the transmission shaft 2 and can move horizontally synchronously with the support rod 15.

[0040] An exhaust pipe 30 is connected to the air outlet end of the pneumatic motor 3, and an annular air cylinder 31 wrapped around the outside of the connecting cylinder 16 is connected to the air outlet end of the exhaust pipe 30. A plurality of air distribution pipes 32 are connected to the annular air cylinder 31 along the circumferential direction, and the air outlet ends of the plurality of air distribution pipes 32 are connected to the annular through groove.

[0041] In addition, the cyclone device also includes a planetary gear 17 sleeved on the transmission shaft 2 and a plurality of planetary teeth 162 meshingly connected on the inner gear 161, and the plurality of planetary teeth 162 are meshingly connected with the center teeth 18 sleeved on the transmission shaft 2; the outlet ends of the first air outlet pipe 41 and the second air outlet pipe 42 are both horizontally passed through the planetary gear 17, and the first air outlet pipe 41 is also passed through the planetary teeth 162 at the corresponding position after passing through the planetary gear 17, and a connecting bearing 163 is also embedded in the planetary teeth 162 at the position corresponding to the penetration position of the first air outlet pipe 41, and the first air outlet pipe 41 is sleeved and connected with the middle through hole of the connecting bearing 163.

[0042] A flame stabilizing cover 19 is screwed on the inner gear disc 161, and a first air generator 5, an ignition needle 54 and a second air generator 50 located outside the first air generator 5 are arranged in the flame stabilizing cover 19. The second air generator 50 emerges from the air outlet end of the first air generator 5, and a baffle 501 is arranged around the edge of the air outlet end of the first air generator 5 in the circumferential direction, and a plurality of air holes 502 are arranged around the baffle 501 in the circumferential direction; a first cavity 51 connected with the first air outlet pipe 41 is arranged in the first air generator 5, and an inwardly concave groove is arranged on one side of the first air generator 5 corresponding to the air outlet direction, and a plurality of first guide grooves 61 connected with the first cavity 51 are arranged on the groove wall in the circumferential direction; A second cavity 52 is provided on it which is sleeved and connected with the second air outlet pipe 42. A plurality of air diffusion holes 53 which are connected with the second cavity 52 are arranged around the end surface of the air outlet end of the second air generator 50 in the circumferential direction. A conical through hole which is larger on the outside and smaller on the inside and connected with the groove is provided in the middle of the second air generator 50. A plurality of second guide grooves 62 are provided in the circumferential direction on the hole wall of the large hole end of the conical through hole. An exhaust hole 71 which is arranged in communication with the second cavity 52 is provided at the bottom of each of the second guide grooves 62. The air outlet end of the transmission shaft 2 extends into the conical through hole through the first air generator 5. A nozzle 26 is sleeved on the inserted end of the transmission shaft 2. A conical hole 261 which is connected with the air guide hole 27 is provided on the nozzle 26. A plurality of spiral air channels 262 are provided on the hole wall of the conical hole 261 in the circumferential direction.

[0043] The current limiting device includes a mixing disk 8 disposed within the flame stabilizing cover 19 and screwed to the nozzle 26. A plurality of mixing through holes 83 are circumferentially arranged around the mixing disk 8. A threaded sleeve 80 is fixedly provided in the middle of the mixing disk 8. A shield 81 is screwed onto the threaded sleeve 80. A tapered block 82 is provided at the non-screwed end of the shield 81, and the small-diameter end of the tapered block 82 extends into the tapered hole 261.

[0044] The working principle of the present utility model is as follows:

[0045] As Figures 1 to 15 shown, during installation, the connecting cylinder 16 and the internal gear disk 161 are fixedly installed in the combustion chamber. A flame stabilizing cover 19 is provided at the air outlet end. To prevent ignition failure, a flame sensing needle 191 is also provided within the flame stabilizing cover 19. The provided squirrel cage sleeve includes a first fixing block 141 and a second fixing block 143 communicating with the air guide hole 27. A plurality of support plates 144 are connected between the two fixing blocks. Air vent holes 145 are provided on the side walls of each of the support plates 144. In this way, while rotating with the transmission shaft 2, gas can also enter the air guide hole 27. The gas sequentially enters the air guide hole 27 through the gas inlet pipe 10, the sleeve 13, and the connecting hole of the second fixing block 143, and finally is discharged through the tapered hole (261. While discharging, due to flowing through a plurality of spiral air channels 262 arranged circumferentially (such as Figure 13 the state shown), the gas forms a spiral shape in the air outlet direction.

[0046] Meanwhile, the pneumatic motor 3 needs to be turned on. The driving gear 25 connected to the output end synchronously drives the driving gear 20 and the transmission shaft 2 to rotate. The transmission shaft 2 then drives the four planetary gears 162 meshingly connected to the central gear 18 to rotate meshingly on the internal gear disk 161. The rotation of the planetary gears 162 drives the boss 40 and the air flow distribution sleeve 4 to rotate simultaneously by the first air outlet pipe 41. Since the second air outlet pipe 42 is also arranged through the planetary gear disk 17 sleeved on the transmission shaft 2, the second air outlet pipe 42 and the first air outlet pipe 41 are in a synchronous rotation state.

[0047] Under the condition of rotational startup, the air discharged by starting the pneumatic motor 3 flows through the exhaust pipe 30 to the annular air cylinder 31, then enters the annular through groove formed by the enclosure of the ventilation groove 401 and the inner cylindrical wall of the internal gear disk 161 through a plurality of branch air pipes 32 connected circumferentially, and finally enters the hollow position of the boss 40 through the air holes 402 and is discharged from the four first air outlet pipes 41 and the four second air outlet pipes 42 connected and penetrated circumferentially on the side wall of one side of the boss 40.

[0048] Among them, the air discharged through the first air outlet pipe 41 passes through the first cavity 51 in the first air generator 5 and is discharged from the positions of the rotating first guiding groove 61 and the rotating air permeable holes 502, also forming a spiral air outlet form, and is mixed with the spirally discharged fuel gas. At the same time, the air discharged through the second air outlet pipe 42 passes through the second cavity 52 in the second air generator 5 and is simultaneously output from the positions of the air dispersion holes 53 and the exhaust holes 71, and is discharged at the position of the rotating second guiding groove 62, thereby forming a double-layer spiral air outlet form, and then is preliminarily mixed with the spirally discharged fuel gas and the air spirally discharged from the first guiding groove 61 in the flame stabilizing cover 19. Since the mixing disk 8 is screwed to the nozzle 26, the nozzle 26 is sleeved on the transmission shaft 2 and rotates synchronously with the transmission shaft 2, that is, the preliminarily mixed gas is finally fully mixed through the mixing through holes 83 on the rotating mixing disk 8. All the air outlet positions form a spiral air outlet state. At the same time, the air outlet angle of the first guiding groove 61 is 75°, the exhaust angle of the exhaust hole 71 is 45°, and the air outlet angle of the air dispersion hole 53 is 20°, so as to facilitate the simultaneous rotation and diffusion of the gas and the rotation and mixing, improve the mixing efficiency. Finally, the ignition needle 54 ignites and ignites the mixed fuel gas.

[0049] In addition, when it is necessary to adjust the displacement of the fuel gas, in addition to twisting the shield body 81 before use to adjust the length of the tapered block 82 extending into the tapered hole 261, the electric jack 11 can also be started after ignition, and the ball head 151 and the transmission shaft 2 are synchronously driven by the support rod 15 to move in the horizontal direction to adjust the gap between the hole wall of the tapered hole 261 and the outer side wall of the tapered block 82, so as to realize the adjustment of the fuel gas discharge amount. Among them, since the driving gear 20 and the driven gear 25 are in a straight gear meshing state, and the air flow distribution sleeve 4 is internally provided with a bearing 21 sleeved on the outer side of the transmission shaft 2, there will be no interference between the longitudinal rotation and the axial translation use states of the transmission shaft 2.

[0050] In addition, the component (not marked) connected to the flame sensing needle 191 is arranged outside the air cylinder 1 for easy observation. When the ignition fails or the flame length is insufficient, the aforementioned operations for adjusting the fuel gas discharge amount can be started in time. The component connected to the flame sensing needle 191 and the setting state are both prior arts, and the relevant content will not be elaborated here.

Claims

1. A burner gas mixing device, characterized in that: It includes a sleeve (13) connected to a gas inlet pipe (10) in a communicating manner, a squirrel-cage sleeve connected in the sleeve (13) in a communicating manner, an electric jacking cylinder (11) connected to one side of the squirrel-cage sleeve, and a cyclone device drivingly connected to the other side of the squirrel-cage sleeve. The squirrel-cage sleeve includes a first fixing block (141) and a second fixing block (143) communicating with the cyclone device. The cyclone device includes a transmission shaft (2) inserted into the sleeve (13) and screwed to the second fixing block (143), an internal gear disk (161) sleeved outside the transmission shaft (2), and a connecting cylinder (16) fixedly sleeved outside the internal gear disk (161). A connecting hole is provided on the second fixing block (143), and an air guide hole (27) communicating with the connecting hole is provided on the transmission shaft (2). A driving gear (20) drivingly connected to the output end of a pneumatic motor (3) is sleeved on one side of the transmission shaft (2). An air flow distribution sleeve (4) is connected to one side of the driving gear (20). A bearing (21) sleeved outside the transmission shaft (2) is embedded in the air flow distribution sleeve (4). A hollow boss (40) is provided on one side of the air flow distribution sleeve (4). An air vent groove (401) communicating with the air outlet end of the pneumatic motor (3) is wound around the outer side wall of the boss (40) in the circumferential direction. The air vent groove (401) and the inner cylindrical wall of the internal gear disk (161) enclose an annular through groove. An air hole (402) communicating with the hollow position of the boss (40) is provided at the bottom of the air vent groove (401). A plurality of first air outlet pipes (41) and second air outlet pipes (42) communicating with the hollow position are penetrated through the side wall of the boss (40) in the circumferential direction. The plurality of first air outlet pipes (41) and second air outlet pipes (42) are arranged at intervals. A flow limiting device is provided at the air outlet end of the cyclone device.

2. The burner gas mixing device according to claim 1, wherein: A plurality of support plates (144) are connected between the two fixing blocks, and air vent holes (145) are provided on the side walls of each support plate (144); A fixing sleeve (142) is screwed on one side of the sleeve (13); A support rod (15) with one side connected to the output end of the electric jacking cylinder (11) is penetrated through the fixing sleeve (142). A ball head (151) is provided at the penetrated end of the support rod (15). An embedding groove is provided at the position corresponding to the ball head (151) on the first fixing block (141). The ball head (151) is embedded in the embedding groove.

3. The burner gas mixing device according to claim 2, characterized in that: The driving tooth (20) is meshedly connected with a transmission tooth (25) connected to the output end of the pneumatic motor (3); a positioning groove is provided at a position corresponding to the driving tooth (20) on the transmission shaft (2); a positioning block (201) is inserted into the positioning groove; a clearance groove is provided at a position corresponding to the positioning block (201) on the driving tooth (20); one side of the positioning block (201) protrudes from the positioning groove and extends into the clearance groove; a fixing ring (22) sleeved on the transmission shaft (2) is screwed on one side of the driving tooth (20); and a fixing ring (22) is embedded on the other side. A thrust ball bearing (23) is sleeved on the transmission shaft (2), a connecting ring (24) threadedly connected to the airflow distribution sleeve (4) is provided on the outer side of the thrust ball bearing (23), a bending section (241) is provided around one side of the connecting ring (24) in the circumferential direction, the bending section (241) extends into the driving tooth (20) and the inner side wall of the bending section (241) overlaps the outer side wall of the thrust ball bearing (23), so that the driving tooth (20) rotates synchronously with the transmission shaft (2) and can move horizontally synchronously with the support rod (15).

4. The burner gas mixing device according to claim 2, wherein: An exhaust pipe (30) is connected to the air outlet end of the pneumatic motor (3), an annular air cylinder (31) wound around the outside of the connecting cylinder (16) is connected to the air outlet end of the exhaust pipe (30), and a plurality of air distribution pipes (32) are connected to the annular air cylinder (31) along the circumferential direction, and the air outlet ends of the plurality of air distribution pipes (32) are all connected to the annular through groove.

5. The burner gas mixing device according to claim 2, characterized in that: The cyclone device also includes a planetary gear disk (17) sleeved on the transmission shaft (2) and a plurality of planetary teeth (162) meshingly connected to the inner gear disk (161), and the plurality of planetary teeth (162) are all meshingly connected to the center teeth (18) sleeved on the transmission shaft (2); the outlet ends of the first air outlet pipe (41) and the second air outlet pipe (42) are both horizontally passed through the planetary gear disk (17), and the first air outlet pipe (41) is also passed through the planetary teeth (162) at the corresponding position after passing through the planetary gear disk (17), and a connecting bearing (163) is also embedded in the planetary teeth (162) at the position corresponding to the first air outlet pipe (41) passing through, and the first air outlet pipe (41) is sleeved and connected to the middle through hole of the connecting bearing (163).

6. The burner gas mixing device according to claim 2, wherein: A flame stabilizer cover (19) is screwed onto the internal gear disc (161). Inside the flame stabilizer cover (19), there is a first air generator (5), an ignition needle (54), and a second air generator (50) located outside the first air generator (5). The air outlet end of the first air generator (5) protrudes from the second air generator (50). The edge of the air outlet end of the first air generator (5) is wound with a baffle (501) in the circumferential direction. A plurality of air permeation holes (502) are wound on the baffle (501) in the circumferential direction. Inside the first air generator (5), there is a first cavity (51) sleeved and communicated with a first air outlet pipe (41). On one side of the first air generator (5) corresponding to the air outlet direction, there is an inward concave groove. On the groove wall inside the groove, a plurality of first guiding grooves (61) communicated with the first cavity (51) are provided in the circumferential direction.

7. The burner gas mixing device according to claim 6, wherein: On the second air generator (50), there is a second cavity (52) sleeved and communicated with a second air outlet pipe (42). On the end face of the air outlet end of the second air generator (50), a plurality of air dispersion holes (53) communicated with the second cavity (52) are wound in the circumferential direction. In the middle of the second air generator (50), there is a tapered through hole with a large outer diameter and a small inner diameter and communicated with the groove. On the large hole end wall of the tapered through hole, a plurality of second guiding grooves (62) are provided in the circumferential direction. The bottom of each second guiding groove (62) is provided with an exhaust hole (71) communicated with the second cavity (52). The air outlet end of the transmission shaft (2) extends into the tapered through hole through the first air generator (5). A nozzle (26) is sleeved on the extending end of the transmission shaft (2). On the nozzle (26), there is a tapered hole (261) communicated with an air guiding hole (27). On the hole wall of the tapered hole (261), a plurality of spiral air channels (262) are provided in the circumferential direction.

8. The burner gas mixing device according to claim 7, characterized in that: The flow limiting device includes a mixing disc (8) screwed to the nozzle (26) and arranged inside the flame stabilizer cover (19). A plurality of mixing through holes (83) are wound on the mixing disc (8) in the circumferential direction. A threaded sleeve (80) is fixedly arranged in the middle of the mixing disc (8). A shield body (81) is screwed onto the threaded sleeve (80). The non-screwed end of the shield body (81) is provided with a tapered block (82). The small diameter end of the tapered block (82) extends into the tapered hole (261).

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