Water-cooled premixed gas ignition device for pressurized boilers

Abstract

The present invention discloses a water-cooled premixed gas ignition device for a pressure-bearing boiler, and relates to the technical field of gas ignition, including a pressure-bearing boiler structure, wherein the pressure-bearing boiler structure comprises a base, a furnace body, a booster pump, a water pump, a three-way valve, a water supply pipe 1 and a water supply pipe 2, wherein a combustion auxiliary structure is installed on the base, wherein the combustion auxiliary structure comprises a sliding plate and an ignition assembly, wherein the premixed gas is heated by a plurality of heat-conducting rods and decelerated by diversion in the process of entering a gas guide groove 1 and moving toward a plurality of discharge tips, the bending setting of the gas guide groove 1 causes the moving premixed gas to change direction after colliding with a heat insulation block, and the premixed gas is decelerated again, and the premixed gas near the discharge tip is heated and decelerated twice, thereby increasing the probability of the gas being ignited by the electric spark output by the discharge tip after the pulse igniter works, and the flame is guided by the inclined upward part of the gas guide groove 1 to move into the interior of the combustion chamber, thereby reducing the possibility of the flame being blown out by the high-speed and low-temperature premixed gas.

Description

Technical Field

[0001] The invention relates to the technical field of gas ignition, in particular to a pressure-bearing boiler water-cooled premixed gas ignition device. Background Art

[0002] Pressure boilers generally refer to closed boilers. The steam-water system in the boiler is composed of closed containers and pipes, and is heated by flames. It is subject to fluid pressure during operation and is a pressure vessel. Compared with normal pressure boilers, it is not connected to the atmosphere and has good sealing properties.

[0003] During the use of the boiler, an ignition structure is used to ignite the premixed gas. However, during the ignition process, the high-speed gas provided by the gas supply structure is easily impacted, which causes the ignited flame to be blown out and unable to form a fully burned state, resulting in ignition failure and a low ignition success rate. Summary of the invention

[0004] The object of the present invention is to provide a pressure-bearing boiler water-cooled premixed gas ignition device to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a water-cooled premixed gas ignition device for a pressure-bearing boiler, comprising a pressure-bearing boiler structure, the pressure-bearing boiler structure comprising a base, a furnace body, a booster pump, a water pump, a three-way valve, a water supply pipe 1 and a water supply pipe 2, a combustion auxiliary structure is installed on the base, the combustion auxiliary structure comprises a sliding plate and an ignition assembly, the ignition assembly comprises an insulation block, a gas guide groove 1 is opened at the front end of the insulation block, a heater is fixedly installed inside the insulation block, a plurality of heat-conducting rods are arranged on one side of the heater, one end of the plurality of heat-conducting rods is arranged inside the gas guide groove 1 and fixedly connected to the insulation block, a plurality of pulse igniters are fixedly installed on the insulation block, a discharge tip is arranged on the pulse igniter, one end of the discharge tip is arranged at the top of the inner cavity of the gas guide groove 1, the sliding plate is slidably connected to the insulation block, an electric push rod is installed at the rear end of the insulation block, and a transfer pipe is fixedly installed at the gas outlet end of the booster pump.

[0006] Preferably, the air guide groove 1 is set to a V shape, the bottom end of the sliding plate is set to a semicircular surface, a storage chamber is opened on the base, the insulation block is arranged inside the storage chamber, a curved groove is opened on the base, the bottom end of the sliding plate is set to a semicircular surface, the curved groove opened on the base is arranged at the bottom of the storage chamber and connected with the inside of the storage chamber, the sliding plate moves upward under the action of the base, and the air guide groove 1 is blocked after the sliding plate moves up, so after the insulation block is reset, the flame sensor returns to the inside of the storage chamber.

[0007] Preferably, the electric push rod is arranged inside the storage chamber and fixedly installed together with the base, a mounting bracket is fixedly installed on the piston end of the electric push rod, and the mounting bracket is fixedly connected to the insulation block, and a flame sensor is fixedly installed on the bottom of the insulation block. When the flame sensor located inside the combustion chamber detects the presence of flame at the bottom of the insulation block, the electric push rod is controlled to work and drive the insulation block to move to the inside of the storage chamber and reset.

[0008] Preferably, the furnace body is installed on a base, a pressure gauge, a safety valve and a thermometer are installed on the furnace body, a combustion chamber is formed on the base, the storage chamber is connected to the combustion chamber, and the insulation block is arranged inside the storage chamber near the combustion chamber. The insulation block seals and protects the electric push rod installed inside the storage chamber to prevent the electric push rod, pulse igniter, discharge tip and other structures from being directly burned by the flame inside the combustion chamber.

[0009] Preferably, a gate valve 1 is fixedly mounted on the base, a gas pipe is fixedly mounted on one side of the gate valve 1, and a transfer pipe is fixedly mounted between the other side of the gate valve 1 and the gas outlet end of the booster pump.

[0010] Preferably, the water pump is fixedly installed on the outside of the base, the three-way valve is fixedly installed on the water outlet of the water pump, the water supply pipe 1 is fixedly installed between the normally open end of the three-way valve and the furnace body, and the water supply pipe 2 is fixedly installed on the normally closed end of the three-way valve.

[0011] Preferably, the combustion auxiliary structure includes a cooling auxiliary component, which includes a water supply pipe three fixedly connected to the water supply pipe one and a gate valve two fixedly connected to the water supply pipe two. The gate valve two is fixedly connected to a water supply pipe four on one side. The heat exchange tube is made of a heat-conducting material, so the water flowing inside the electric push rod exchanges heat with the heat inside the storage chamber. While cooling and protecting the electric push rod, discharge tip and other structures installed inside the storage chamber, the water supplemented into the furnace body is preheated, thereby increasing the speed at which the water is converted into high-temperature steam. A heat exchange tube is fixedly installed between the water supply pipe four and the water supply pipe three, and the heat exchange tube is arranged on the outside of the electric push rod.

[0012] Preferably, the cooling auxiliary component includes a transmission rod 1 rotatably connected to the transfer pipe, an impeller fixedly sleeved on the outside of the transmission rod 1, and a gear box fixedly installed on one end of the transmission rod 1, the other end of the transmission rod 1 extends to the inside of the water supply pipe 2 and is rotatably connected to the water supply pipe 2, a friction piece is fixedly installed inside the water supply pipe 2, the friction piece is arranged in an eight-shape, and the distance between the inner wall of the friction piece and the outer wall of the transmission rod 1 becomes smaller from left to right, an empty groove is opened at the top of the transfer pipe, a sealing plate is arranged on the top of the empty groove, and the sealing plate is fixedly connected to the transfer pipe, the internal pressure of the water supply pipe 2 increases, the friction piece is sleeved on the outside of the transmission rod 1, the internal pressure of the water supply pipe 2 increases, the friction piece is deformed and the friction contact points with the transmission rod 1 increase, and the rotation speed of the transmission rod 1 decreases.

[0013] Preferably, a buffer box is fixedly installed on one side of the gear box, and a transmission rod 2 is fixedly installed on the output end of the gear box, the transmission rod 2 is rotatably connected to the buffer box, the transmission rod 2 and the elliptical plate fixedly sleeved on the outside of the transmission rod 2 rotate, the transmission rod 2 is fixedly sleeved on the outside of the elliptical plate, and fixed frames are provided at the bottom and top of the elliptical plate, and a plurality of drag reduction frames are rotatably connected inside the fixed frame, and a plurality of drag reduction frames are rotatably connected inside the transmission rod 2 for reducing friction, and an L-shaped plate is fixedly connected on one side of the two fixed frames away from the elliptical plate, a plurality of spring telescopic rods are fixedly connected between the L-shaped plate and the buffer box, and a plurality of spring telescopic rods are fixedly connected between the L-shaped plate and the buffer box, and the L-shaped plate and the fixed frame can move up and down under the support of the telescopic spring telescopic rods.

[0014] Preferably, two air inlets are provided on one side of the buffer box, and solenoid valves are provided on one side of the two air inlets. Since the upper solenoid valve is connected to the gas supply system, and the lower solenoid valve is connected to the combustion auxiliary gas supply system, the solenoid valve is fixedly connected to the buffer box, and the booster pump delivers premixed gas composed of gas and combustion auxiliary gas to the interior of the combustion chamber through a transfer pipe fixedly connected between the booster pump and gate valve 1, the working open gate valve 1 and a gas pipe fixedly connected to one end of the gate valve 1.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present application, the premixed gas is heated by multiple heat-conducting rods and decelerated during the process of entering the gas guide groove 1 and moving toward multiple discharge tips. The bending setting of the gas guide groove 1 causes the moving premixed gas to change direction after colliding with the insulation block, and the premixed gas is decelerated again. The premixed gas near the discharge tip is heated and then decelerated twice, thereby increasing the probability of igniting the gas by the electric spark output by the discharge tip after the pulse igniter works, and multiple pulse igniters are arranged side by side on the insulation block to further increase the success rate of gas ignition inside the combustion chamber; the flame is guided by the inclined upward part of the gas guide groove 1 to move into the combustion chamber, so that the flame discharged from the gas guide groove 1 and the premixed gas discharged from the gas pipe are in acute angle contact, reducing the possibility of the flame being blown out by the high-speed and low-temperature premixed gas, thereby ensuring the ignition success rate.

[0017] 2. When the working internal pressure of the pressure-bearing boiler structure in the present application increases to above the preset value, the internal pressure of the water supply pipe 2 increases, the friction part is deformed and the contact friction parts with the transmission rod 1 increase, the rotation speed of the transmission rod 1 decreases, and the rotation speed of the transmission rod 2 fixedly installed at the output end of the gear box and the elliptical plate fixedly mounted on the outside of the transmission rod 2 decreases, the gas entering the buffer box decreases, and the combustion auxiliary gas entering the buffer box increases, so as to achieve the effect of reducing the proportion of gas in the premixed gas after the internal pressure of the furnace body reaches a certain level, reducing the amount of gas input for furnace heating, reducing the frequency of pressure relief of the safety valve, reducing water vapor waste, and improving the quality of gas utilization.

[0018] 3. In the present application, the L-shaped plate performs up and down reciprocating motion during the rotation of the elliptical plate. The movement of the two L-shaped plates stirs the fuel gas and combustion-auxiliary gas entering the buffer box, thereby mixing the fuel gas and the combustion-auxiliary gas. In addition, the mixing caused by the booster pump during the air extraction and transportation process and the stirring of the fuel gas and the combustion-auxiliary gas by the rotating impeller can achieve simultaneous transportation and mixing of the fuel gas and the combustion-auxiliary gas, thereby reducing time and cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the partial structure of the base of the present invention;

[0021] Figure 3 For this Figure 2 A magnified view of the structure at A;

[0022] Figure 4 It is a schematic diagram of the structure of the heat insulation block of the present invention;

[0023] Figure 5 For the present invention Figure 4 A magnified view of the structure at B;

[0024] Figure 6 It is a schematic diagram of the structure of the heat exchange tube of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the water supply pipe 2 of the present invention;

[0026] Figure 8 It is a schematic diagram of the partial structure of the transfer tube of the present invention;

[0027] Fig. 9 For the present invention Figure 8 A magnified view of the structure at C;

[0028] Fig.10 For the present invention Figure 8 A magnified view of the structure at D;

[0029] Fig.11 It is a partial structural schematic diagram of the buffer box of the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the gas pipe of the present invention.

[0031] Numbers in the figure: 1. Pressure boiler structure; 11. Base; 12. Furnace body; 13. Pressure gauge; 14. Safety valve; 15. Thermometer; 16. Combustion chamber; 17. Storage chamber; 18. Gas pipe; 19. Transfer pipe; 110. Booster pump; 111. Water pump; 112. Three-way valve; 113. Water supply pipe 1; 114. Water supply pipe 2; 115. Gate valve 1; 2. Combustion auxiliary structure; 21. Sliding plate; 22. Curved groove; 23. Insulation block; 24. Gas guide groove 1; 25. Discharge tip; 26. Pulse igniter; 27. Heater; 28. Heat transfer rod; 29. ​​Electric push rod; 210. Mounting frame; 211. Heat exchange tube; 212. Water supply pipe three; 213. Gate valve two; 214. Water supply pipe four; 215. Impeller; 216. Transmission rod one; 217. Friction piece; 218. Gear box; 219. Buffer box; 220. Transmission rod two; 221. Elliptical plate; 222. Fixed frame; 223. Drag reduction frame; 224. L-shaped plate; 225. Spring telescopic rod; 226. Air inlet; 227. Solenoid valve; 228. Empty slot; 229. Sealing plate; 3. Flame sensor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example: Figure 1-Figure 12As shown, the present invention provides a technical solution for a water-cooled premixed gas ignition device for a pressure-bearing boiler, including a pressure-bearing boiler structure 1, the pressure-bearing boiler structure 1 includes a base 11, a furnace body 12, a booster pump 110, a water pump 111, a three-way valve 112, a water supply pipe 113 and a water supply pipe 2 114, a combustion auxiliary structure 2 is installed on the base 11, the combustion auxiliary structure 2 includes a sliding plate 21 and an ignition component, the ignition component includes an insulation block 23, and a gas guide groove 1 24 is opened at the front end of the insulation block 23. A heater 27 is fixedly installed inside the insulation block 23, and a plurality of heat-conducting rods 28 are arranged on one side of the heater 27. One end of the plurality of heat-conducting rods 28 is arranged inside the air guide groove 24 and fixedly connected to the insulation block 23. A plurality of pulse igniters 26 are fixedly installed on the insulation block 23. A discharge tip 25 is arranged on the pulse igniter 26. One end of the discharge tip 25 is arranged at the top of the inner cavity of the air guide groove 24. The sliding plate 21 is slidably connected to the insulation block 23, and an electric push rod 29 is installed at the rear end of the insulation block 23.

[0034] Specifically, when the boiler equipment composed of the pressure-bearing boiler structure 1 and the combustion auxiliary structure 2 is working, its operation is controlled by electrically connecting the boiler equipment to a human-machine interaction device. This is an existing public technology and will not be elaborated here.

[0035] The boiler equipment works as follows: a furnace body 12 is installed on a base 11, a combustion chamber 16 formed on the base 11 is arranged at the bottom of the furnace body 12, the combustion chamber 16 provides space for combustion, a pressure gauge 13, a safety valve 14 and a thermometer 15 are installed on the furnace body 12 for safety monitoring and explosion-proof of the furnace body 12, a water supply pipe 113 is installed at the water inlet of the furnace body 12 for supplying water to the inside of the furnace body 12, a three-way valve 112 is fixedly installed at the water outlet end of a water pump 111 fixedly installed on the outside of the base 11, and a water supply pipe 113 is fixedly installed between the normally open end of the three-way valve 112 and the furnace body 12, after the water pump 111 is controlled to work and pump water, the water pump 111 injects water into the furnace body 12 through the three-way valve 112 and the water supply pipe 113 to supply water to the inside of the furnace body 12. Control the boost pump 110 to work and pump air, control the gate valve 115 fixedly installed on the base 11 to work and open, control the two solenoid valves 227 fixedly installed one above and one below on one side of the buffer box 219 to work and open, because the upper solenoid valve 227 is connected to the gas supply system, and the lower solenoid valve 227 is connected to the combustion auxiliary gas supply system, at this time, the two solenoid valves 227 supply air to the inside of the buffer box 219, and the air inlet end of the boost pump 110 is fixedly connected to the buffer box 219. After the working boost pump 110 pumps air from the inside of the buffer box 219, the boost pump 110 transports the premixed gas composed of gas and combustion auxiliary gas to the inside of the combustion chamber 16 through the transfer pipe 19 fixedly connected between the boost pump 110 and the gate valve 115, the working open gate valve 115 and the gas pipe 18 fixedly connected to one end of the gate valve 115.

[0036] After the premixed gas is injected into the combustion chamber 16 with a limited volume for a period of time, the combustion auxiliary structure 2 is controlled to work to perform ignition work:

[0037] First, the electric push rod 29 in the combustion auxiliary structure 2 is controlled to work. Since the electric push rod 29 is arranged inside the storage chamber 17 opened on the base 11, and the heat insulation block 23 is arranged inside the storage chamber 17 at a position close to the combustion chamber 16, the electric push rod 29 works to push the mounting frame 210 fixedly installed on the piston end to move inside the storage chamber 17, and the heat insulation block 23 fixedly connected to the mounting frame 210 moves inside the storage chamber 17. When the electric push rod 29 finishes working, the heat insulation block 23 partially enters the combustion chamber 16, and the heat insulation block 23 still plays the role of isolating the inside of the storage chamber 17 from the inside of the combustion chamber 16. At this time, the flame sensor 3 fixedly installed at the bottom of the heat insulation block 23 moves to the inside of the combustion chamber 16, completing the ignition preparation work;

[0038] Subsequently, the plurality of pulse igniters 26 fixedly mounted on the heat insulating block 23 are controlled to work, and one end of the discharge tip 25 on the pulse igniter 26 is arranged at the top of the inner cavity of the gas guide groove 24 formed on the heat insulating block 23. Since the lower part of the gas guide groove 24 arranged in a V shape is vertically aligned with the gas outlet end of the gas pipe 18, the top part of the gas guide groove 24 is tilted upward, as shown in FIG. Figure 6 As shown, part of the high-speed premixed gas ejected from the gas pipe 18 enters the interior of the gas guide groove 24; at the same time, the heater 27 fixedly installed inside the heat insulation block 23 works to heat the multiple heat-conducting rods 28 arranged on one side, and the heat-conducting rods 28 are partially arranged inside the gas guide groove 24, so the premixed gas is heated by the multiple heat-conducting rods 28 and decelerated during the process of entering the gas guide groove 24 and moving toward the multiple discharge tips 25. The bending setting of the gas guide groove 24 causes the moving premixed gas to change direction after colliding with the heat insulation block 23, and the premixed gas is decelerated again. The premixed gas near the discharge tip 25 is heated and decelerated twice, thereby improving the performance of the gas guide groove 24. After the high pulse igniter 26 is working, the probability of igniting the gas through the electric spark output by the discharge tip 25 is increased, and multiple pulse igniters 26 are arranged side by side on the insulation block 23, which further improves the success rate of gas ignition inside the combustion chamber 16; the flame is guided by the inclined upward part of the gas guide groove 24 to move into the combustion chamber 16, so that the flame discharged from the gas guide groove 24 and the premixed gas discharged from the gas pipe 18 are in acute angle contact, which reduces the force on the flame and the possibility of the flame being blown out by the high-speed and low-temperature premixed gas, thereby ensuring the ignition success rate and reducing the time cost and resource cost investment required for ignition preheating of the pressurized boiler structure 1.

[0039] When the flame sensor 3 located inside the combustion chamber 16 detects the presence of flame at the bottom of the heat insulation block 23 , the electric push rod 29 is controlled to drive the heat insulation block 23 to move toward the inside of the storage chamber 17 to reset.

[0040] After the sliding plate 21 slidably installed on one side of the heat insulating block 23 leaves the interior of the storage chamber 17, the sliding plate 21 falls under the action of gravity, exposing the upper part of the air guide groove 24. However, during the resetting process of the heat insulating block 23, since the bottom end of the sliding plate 21 is set as a semicircular surface, the curved groove 22 provided on the base 11 is set at the bottom of the storage chamber 17 and communicates with the interior of the storage chamber 17. During the resetting process of the heat insulating block 23, the bottom end of the sliding plate 21 cooperates with the position of the curved groove 22 provided on the base 11, and the sliding plate 21 moves up under the action of the base 11. After the sliding plate 21 moves up, it blocks the air guide groove 24. Therefore, after the heat insulating block 23 is reset, The flame sensor 3 returns to the interior of the storage chamber 17, one end of the air guide groove 24 is sealed by the sliding plate 21, the discharge tip 25 is sealed and protected, and the insulation block 23 has a certain thickness and fits with the base 11. The insulation block 23 seals and protects the electric push rod 29 installed inside the storage chamber 17 to prevent the electric push rod 29, the pulse igniter 26, the discharge tip 25 and other structures from being directly burned by the flame inside the combustion chamber 16, and protects the electric push rod 29, the pulse igniter 26, the discharge tip 25 and other structures, thereby extending the service life of the electric push rod 29, the pulse igniter 26, the discharge tip 25, the heat-conducting rod 28 and other structures.

[0041] Due to the structural characteristics of the pressure-bearing boiler structure 1, the furnace body 12 can be kept full of water. When the furnace body 12 starts to output steam, the cooling auxiliary component is controlled to work:

[0042] First, the water pump 111 is controlled to work at low power to pump water, the three-way valve 112 is controlled to work with the normally closed end opened and the normally open end closed, and the gate valve 213 is controlled to work and open. One end of the water supply pipe 214 fixedly installed on the normally closed end of the three-way valve 112 is fixedly connected to the gate valve 213. Therefore, at this time, after the water pump 111 works to pump water, it is transported to the inside of the water supply pipe 4 214 fixedly connected to the gate valve 213 through the three-way valve 112, the water supply pipe 113 and the gate valve 213, and the water supply pipe 114 is fixedly connected to the gate valve 213. A heat exchange tube 211 is fixedly installed between the water supply pipe 3 212 and the water supply pipe 4 214 which are fixedly connected to each other, so the water inside the water supply pipe 4 214 enters the water supply pipe 1 13 through the heat exchange tube 211 and the water supply pipe 3 212, and finally the water enters the furnace body 12 through the water supply pipe 1 113, so that the low-power water pump 111 can quantitatively and uniformly replenish water to the furnace body 12, so that the furnace body 12 is kept full of water to ensure the working efficiency of the pressure boiler structure 1;

[0043] The heat exchange tube 211 is arranged on the outside of the electric push rod 29. The heat exchange tube 211 is made of heat-conducting material, so the water flowing inside the electric push rod 29 exchanges heat with the heat inside the storage chamber 17. While cooling and protecting the electric push rod 29, the discharge tip 25 and other structures installed inside the storage chamber 17, the water added to the furnace body 12 is preheated, which increases the speed at which the water is converted into high-temperature steam and reduces the resource consumption of the pressure boiler structure 1.

[0044] A transmission rod 216 is rotatably installed inside the transfer tube 19, and an impeller 215 fixedly sleeved outside the transmission rod 216 is arranged inside the transfer tube 19, and a hollow groove 228 is opened at the top of the transfer tube 19, and a sealing plate 229 arranged at the top of the hollow groove 228 is fixedly connected to the transfer tube 19. The hollow groove 228 allows the impeller 215 to be arranged at an upper position inside the transfer tube 19, and there is a certain distance between the bottom of the impeller 215 and the bottom wall of the inner cavity of the transfer tube 19 to avoid the sealing effect of the impeller 215 affecting the flow of the premixed gas, so that the premixed gas flowing inside the transfer tube 19 can smoothly drive the impeller 215 to drive the transmission rod 216 to rotate; the rotating impeller 215 stirs the gas and the combustion-auxiliary gas to make the gas and the combustion-auxiliary gas evenly mixed to ensure complete combustion of the gas.

[0045] When the internal pressure of the pressure-bearing boiler structure 1 increases to a certain extent, the internal pressure of the connecting structures such as the water supply pipe 1 113, the water supply pipe 3 212, and the water supply pipe 2 114 will increase. Since one end of the transmission rod 1 216 in the cooling auxiliary component extends to the inside of the water supply pipe 2 114 and is rotatably connected to the water supply pipe 2 114, the friction member 217 fixedly installed inside the water supply pipe 2 114 is sleeved on the outside of the transmission rod 1 216. The friction member 217 is arranged in an eight-shaped shape, and the distance between the inner wall of the friction member 217 and the outer wall of the transmission rod 1 216 decreases from left to right. Therefore, as the internal pressure of the pressure-bearing boiler structure 1 increases, the internal pressure of the water supply pipe 2 114 increases, the friction member 217 deforms and the friction contacting parts of the transmission rod 1 216 increase, and the rotation speed of the transmission rod 1 216 decreases;

[0046] The other end of the transmission rod 1 216 is fixedly installed on the input end of the gear box 218. The buffer box 219 fixedly installed on one side of the gear box 218 is used to mix the fuel gas and the combustion auxiliary gas. The transmission rod 220 fixedly installed on the output end of the gear box 218 is rotatably connected to the buffer box 219. The transmission rod 220 can rotate inside the buffer box 219, so the rotational force of the transmission rod 1 216 is transferred to the transmission rod 220 after being changed by the gear box 218. The transmission rod 220 and the elliptical plate 221 fixedly sleeved on the outer side of the transmission rod 220 rotate. Fixed frames 222 are provided at the bottom and top of the elliptical plate 221. The two fixed frames 222 are fixedly connected with an L-shaped plate 224 on one side away from the elliptical plate 221. A plurality of spring telescopic rods 225 are fixedly connected between the L-shaped plate 224 and the buffer box 219. Under the support of the telescopic spring telescopic rods 225, the L-shaped plate 224 and the fixed frame 222 can move up and down;

[0047] The rotating elliptical plate 221 is set to an elliptical shape, and the transmission rod 220 is internally connected to a plurality of drag reducing frames 223 for reducing friction. Therefore, during the rotation of the elliptical elliptical plate 221, the elliptical plate 221 applies an upward force to the upper L-shaped plate 224, and the spring telescopic rod 225 fixedly installed between the upper L-shaped plate 224 and the buffer box 219 rebounds to apply a downward force to the upper L-shaped plate 224. The elliptical plate 221 applies a downward force to the lower L-shaped plate 224, and the spring telescopic rod 225 fixedly installed between the lower L-shaped plate 224 and the buffer box 219 rebounds to apply a downward force to the upper L-shaped plate 224. The retracted rod 225 rebounds and applies a force to the lower L-shaped plate 224 to move upward and reset; in summary, during the rotation of the elliptical plate 221, the L-shaped plate 224 reciprocates up and down, and the movement of the two L-shaped plates 224 stirs the fuel gas and combustion auxiliary gas entering the buffer box 219, thereby mixing the fuel gas and the combustion auxiliary gas. In addition, the mixing caused by the suction and transportation process of the booster pump 110 and the stirring of the fuel gas and the combustion auxiliary gas by the rotating impeller 215 can achieve synchronous transportation and mixing of the fuel gas and the combustion auxiliary gas, thereby reducing time and cost investment;

[0048] The upper L-shaped plate 224 is arranged on one side of the upper air inlet 226, so as the upper L-shaped plate 224 moves upward, the connecting area between the air inlet 226 and the inside of the buffer box 219 increases, and the faster the elliptical plate 221 rotates, the more time the air inlet 226 and the buffer box 219 are fully connected per unit time, and more fuel gas enters the buffer box 219 through the upper air inlet 226 and the solenoid valve 227 arranged on one side of the upper air inlet 226; and the lower L-shaped plate 224 is arranged on the top side of the lower air inlet 226, so as the lower L-shaped plate 224 moves downward, the connecting area between the lower air inlet 226 and the inside of the buffer box 219 decreases, and the slower the elliptical plate 221 rotates, the more time the lower air inlet 226 and the buffer box 219 are fully overlapped per unit time, and more combustion auxiliary gas enters the buffer box 219 through the lower air inlet 226 and the solenoid valve 227 arranged on one side of the lower air inlet 226;

[0049] In summary, when the working internal pressure of the pressure-bearing boiler structure 1 increases to above the preset value, the internal pressure of the water supply pipe 114 increases, the friction member 217 deforms and the friction points in contact with the transmission rod 216 increase, the rotation speed of the transmission rod 216 decreases, the rotation speed of the transmission rod 220 fixedly installed at the output end of the gear box 218 and the elliptical plate 221 fixedly sleeved on the outside of the transmission rod 220 decreases, the amount of gas entering the buffer box 219 through the upper air inlet 226 and the solenoid valve 227 provided on one side of the upper air inlet 226 decreases, and the amount of combustion auxiliary gas entering the buffer box 219 through the lower air inlet 226 and the solenoid valve 227 provided on one side of the lower air inlet 226 increases, so as to achieve the effect of reducing the proportion of gas in the premixed gas after the internal pressure of the furnace body 12 reaches a certain level, reducing the amount of gas input for heating the furnace body 12, reducing the frequency of pressure relief of the safety valve 14, reducing water vapor waste, and improving the quality of gas utilization.

[0050] In addition, the friction member 217 has a limited volume and the friction force applied to the transmission rod 216 is limited. The distance between the two foci of the elliptical plate 221 is limited. The elliptical plate 221 pushes the L-shaped plate 224 to move a limited distance. Therefore, the ratio of the fuel gas and the combustion auxiliary gas entering the buffer box 219 is maintained above the state where the premixed fuel gas can burn.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A pressure-bearing boiler water-cooled premixed gas ignition device, comprising a pressure-bearing boiler structure (1), the pressure-bearing boiler structure (1) comprising a base (11), a furnace body (12), a booster pump (110), a water pump (111), a three-way valve (112), a first water supply pipe (113) and a second water supply pipe (114), the water pump (111) being fixedly mounted on the outside of the base (11), the three-way valve (112) being fixedly mounted on a water outlet end of the water pump (111), the first water supply pipe (113) being fixedly mounted between a normally open end of the three-way valve (112) and the furnace body (12), and the second water supply pipe (114) being fixedly mounted on a normally closed end of the three-way valve (112), characterized in that: A combustion auxiliary structure (2) is mounted on the base (11), the combustion auxiliary structure (2) comprising a sliding plate (21) and an ignition assembly, the ignition assembly comprising a heat insulating block (23), a gas guide groove (24) being provided at the front end of the heat insulating block (23), a heater (27) being fixedly mounted inside the heat insulating block (23), a plurality of heat conducting rods (28) being arranged on one side of the heater (27), one end of the plurality of heat conducting rods (28) being arranged inside the gas guide groove (24) and being in contact with the gas guide groove (24). The heat insulation block (23) is fixedly connected, a plurality of pulse igniters (26) are fixedly mounted on the heat insulation block (23), a discharge tip (25) is arranged on the pulse igniter (26), one end of the discharge tip (25) is arranged at the top of the inner cavity of the air guide groove (24), the sliding plate (21) is slidably connected to the heat insulation block (23), an electric push rod (29) is mounted at the rear end of the heat insulation block (23), and a transfer pipe (19) is fixedly mounted on the air outlet end of the booster pump (110); The combustion auxiliary structure (2) comprises a cooling auxiliary component, the cooling auxiliary component comprising a water supply pipe 3 (212) fixedly connected to the water supply pipe 1 (113) and a gate valve 2 (213) fixedly connected to the water supply pipe 2 (114), one side of the gate valve 2 (213) being fixedly connected to the water supply pipe 4 (214), a heat exchange pipe (211) being fixedly installed between the water supply pipe 4 (214) and the water supply pipe 3 (212), and the heat exchange pipe (211) being arranged on the outside of the electric push rod (29); The cooling auxiliary component comprises a transmission rod (216) rotatably connected to the transfer pipe (19), an impeller (215) fixedly sleeved on the outside of the transmission rod (216), and a gear box (218) fixedly installed on one end of the transmission rod (216); the other end of the transmission rod (216) extends into the inside of the water supply pipe (114) and is rotatably connected to the water supply pipe (114); a friction member (217) is fixedly installed inside the water supply pipe (114); the friction member (217) is sleeved on the outside of the transmission rod (216); a hollow groove (228) is opened at the top of the transfer pipe (19); a sealing plate (229) is arranged at the top of the hollow groove (228); the sealing plate (229) is fixedly connected to the transfer pipe (19); A buffer box (219) is fixedly mounted on one side of the gear box (218); a second transmission rod (220) is fixedly mounted on the output end of the gear box (218); the second transmission rod (220) is rotatably connected to the buffer box (219); an elliptical plate (221) is fixedly sleeved on the outside of the second transmission rod (220); a fixing frame (222) is provided at the bottom and top of the elliptical plate (221); a plurality of drag reduction frames (223) are rotatably connected inside the fixing frame (222); an L-shaped plate (224) is fixedly connected to one side of the two fixing frames (222) away from the elliptical plate (221); and a plurality of spring telescopic rods (225) are fixedly connected between the L-shaped plate (224) and the buffer box (219).

2. The pressurized boiler water-cooled premixed gas ignition device according to claim 1 is characterized in that: The air guide groove (24) is configured to be V-shaped, the bottom end of the sliding plate (21) is configured to be a semicircular surface, a storage chamber (17) is provided on the base (11), the heat insulation block (23) is arranged inside the storage chamber (17), and a curved groove (22) is provided on the base (11).

3. The pressurized boiler water-cooled premixed gas ignition device according to claim 2 is characterized in that: The electric push rod (29) is arranged inside the storage chamber (17) and fixedly mounted together with the base (11); a mounting frame (210) is fixedly mounted on the piston end of the electric push rod (29); the mounting frame (210) is fixedly connected to the heat insulation block (23); and a flame sensor (3) is fixedly mounted on the bottom of the heat insulation block (23).

4. The pressurized boiler water-cooled premixed gas ignition device according to claim 2 is characterized in that: The furnace body (12) is mounted on a base (11); a pressure gauge (13), a safety valve (14) and a thermometer (15) are mounted on the furnace body (12); a combustion chamber (16) is formed on the base (11); the storage chamber (17) is connected to the combustion chamber (16); and the heat insulation block (23) is arranged inside the storage chamber (17) at a position close to the combustion chamber (16).

5. The pressurized boiler water-cooled premixed gas ignition device according to claim 4 is characterized in that: A gate valve 1 (115) is fixedly mounted on the base (11), a gas pipe (18) is fixedly mounted on one side of the gate valve 1 (115), and a transfer pipe (19) is fixedly mounted on the other side of the gate valve 1 (115).

6. The pressurized boiler water-cooled premixed gas ignition device according to claim 1 is characterized in that: Two air inlets (226) are provided on one side of the buffer box (219), and a solenoid valve (227) is provided on one side of each of the two air inlets (226), wherein the solenoid valve (227) is fixedly connected to the buffer box (219).

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