Energy-saving boiler with soot blowing device

Abstract

The present application relates to the technical field of steam boiler, and discloses an energy-saving boiler with a soot blowing device, which comprises a furnace body, a furnace cover installed on the upper side of the furnace body, a gas storage shell installed on the furnace cover, a sliding plate sealingly and slidably connected in the gas storage shell, elastic telescopic rods for driving the sliding plate to move and fixedly connected between the gas storage shell and the sliding plate, a first intermediate pipe and a second intermediate pipe fixedly connected and communicated with the gas storage shell, and a water inlet flow guide shell installed on the furnace cover, wherein the furnace cover is provided with a gas guide shell, and the gas guide shell is fixedly connected and communicated with an exhaust pipe. The present application stores the excess steam prepared by the boiler in the gas storage shell, avoids the steam from being directly discharged into the atmosphere, reduces the energy loss, and when the steam preparation rate of the boiler is reduced, the steam stored in the gas storage shell is delivered into the steam delivery pipeline again, thereby improving the utilization rate of the steam and achieving the purpose of energy saving.

Description

Technical Field

[0001] This invention relates to the field of steam boiler technology and discloses an energy-saving boiler with a soot blowing device. Background Technology

[0002] In industrial production and domestic water use, steam boilers, as key equipment for generating steam or hot water, are widely used in various fields. During operation, steam boilers heat water by burning fuels (such as coal, oil, natural gas, etc.) or other heat sources, bringing the water to its boiling point and converting it into steam. Therefore, steam boilers can be classified as: coal-fired boilers, oil-fired boilers, and gas-fired boilers.

[0003] Existing coal-fired boilers typically consist of a furnace, burner, and heat exchanger pipes. Both the burner and heat exchanger pipes are located inside the furnace. When using a coal-fired boiler, coal is first put into the furnace, where the burner burns it, producing high-temperature flames and flue gas. Then, water is injected into the heat exchanger pipes. The high-temperature flue gas in the furnace exchanges heat with the water in the heat exchanger pipes, heating the water into steam. Finally, the steam is ejected from the heat exchanger pipes, thus completing the steam preparation process.

[0004] However, during the use of coal-fired boilers, unstable fuel supply can cause fluctuations in the boiler's internal temperature. When the boiler temperature rises, the hot water pipes heat the water inside more rapidly, causing more water to be converted into steam. If the excess steam cannot be utilized in time, it will be directly discharged into the atmosphere through the exhaust pipe to maintain safe operating pressure. This process not only causes significant energy loss but also increases greenhouse gas emissions, violating the principles of energy conservation and emission reduction. Summary of the Invention

[0005] In order to overcome the shortcomings mentioned in the background art, the present invention provides an energy-saving boiler with a soot blowing device.

[0006] The technical implementation scheme of the present invention is as follows: an energy-saving boiler with a soot blowing device, comprising:

[0007] A furnace body, with a furnace cover installed on its upper side;

[0008] A gas storage shell is installed on the furnace cover. A sliding plate is slidably connected inside the gas storage shell. An elastic telescopic rod for moving the sliding plate is fixedly connected between the gas storage shell and the sliding plate. The gas storage shell is fixedly connected to and connected to a first intermediate pipe and a second intermediate pipe. A first pressure relief valve is installed in the first intermediate pipe, and a one-way valve is installed in the second intermediate pipe. A second pressure relief valve communicating with the outside is installed on the side wall of the gas storage shell.

[0009] A heat exchange assembly, disposed on the furnace cover, is used to generate steam. The heat exchange assembly includes:

[0010] Two connecting pipes are both installed on the furnace cover, and both sides of the connecting pipes are sealed and rotatably connected to guide pipes that pass through the furnace cover and are sealed and rotatably connected to the furnace cover.

[0011] A water inlet guide shell is installed on the furnace cover. The furnace cover is equipped with a gas guide shell. The gas guide shell is fixedly connected to and connected to an exhaust pipe that is connected to both the first intermediate pipe and the second intermediate pipe. Two guide pipes on the same connecting pipe are rotatably connected to and connected to the water inlet guide shell and the gas guide shell, respectively.

[0012] More preferably, the heat exchange assembly further includes:

[0013] The number of fixing rods is the same as the number of connecting pipes, and they are all fixed to the furnace cover. The fixing rods are also fixed to the adjacent connecting pipes.

[0014] The number of branch pipes is the same as the number of guide pipes, and they are respectively fixed to the adjacent guide pipes. Both sides of the branch pipes are connected to the guide pipes.

[0015] A soot blowing assembly, mounted on the furnace cover, is used to clean dust from the guide pipe;

[0016] A drive assembly, mounted on the furnace cover, is used to drive the guide pipe to rotate.

[0017] More preferably, the soot blowing assembly includes:

[0018] A support frame is installed on the furnace cover, and a moving module is slidably connected to the support frame. An electric rotating shaft is provided on the moving module.

[0019] An air blowing pipe is fixedly connected to the electric rotating shaft of the moving module. The air blowing pipe passes through the furnace cover and is slidably connected to the furnace cover in a sealed manner. An air blowing port is opened on the side of the air blowing pipe away from the moving module. A guide pipe is fixedly connected to the support frame. The guide pipe passes through the moving module and is slidably connected to the air blowing pipe in a sealed manner. The guide pipe is located inside the air blowing pipe.

[0020] More preferably, the driving component includes:

[0021] A reversing module is installed on the furnace cover. The input shaft of the reversing module is fixedly connected to a rotating wheel. The reversing module is located between two guide pipes on the same connecting pipe. The output shaft of the reversing module is drivenly connected to both guide pipes on the same connecting pipe. The two guide pipes connected to the water inlet guide shell are drivenly connected through a transmission component. The two guide pipes connected to the air guide shell are drivenly connected through a transmission component.

[0022] A transmission rod is fixed to the moving module, passes through the furnace cover and is slidably connected to the furnace cover in a sealed manner, and is drively connected to the rotating wheel.

[0023] More preferably, it further includes an air guiding component disposed within the air blowing pipe for changing the direction of air blowing from the air blowing pipe, the air guiding component comprising:

[0024] Several rotating blocks are all rotatably and sealed to the air blowing pipe. Each rotating block has a through hole that connects the inside of the air blowing pipe to the outside. A first elastic element is fixedly connected between the rotating block and the air blowing pipe.

[0025] More preferably, the air guiding assembly further includes:

[0026] The number of first fixed shells is the same as the number of rotating blocks, and they are fixedly connected to adjacent rotating blocks. The first fixed shells are located outside the air blowing pipe. The first fixed shells are fixedly connected to and connected to elastic tubes. The elastic tubes are connected to the through holes of adjacent rotating blocks. The elastic tubes are located inside adjacent first fixed shells. Several extrusion blocks are slidably connected inside the first fixed shells. The extrusion blocks are located between adjacent first fixed shells and adjacent elastic tubes. The extrusion blocks are used to extrude adjacent elastic tubes.

[0027] More preferably, it also includes:

[0028] The number of first rotating rings is the same as the number of first fixed shells, and they are rotatably connected to the outer periphery of adjacent first fixed shells. The periphery of the first fixed shell is provided with a sliding groove. The first rotating ring is fixedly connected to the first fixed shell through the sliding groove of the first fixed shell with a second elastic member. The second elastic member is located between the adjacent first fixed shell and the adjacent extrusion block, and the second elastic member is used to extrude the adjacent extrusion block.

[0029] More preferably, it also includes:

[0030] A second fixed shell is fixedly connected to the moving module. The air blowing pipe passes through the second fixed shell and is rotatably connected to the second fixed shell. A second rotating ring is slidably connected inside the second fixed shell. The second rotating ring is splinedly connected to the air blowing pipe. A third rotating ring is rotatably connected to the second rotating ring. A pull rope is fixedly connected between the first rotating ring and the second rotating ring. The pull rope is located inside the side wall of the air blowing pipe.

[0031] A sliding column is slidably connected to the second fixed shell, and a third elastic element is fixedly connected between the two. The sliding column is also fixedly connected to the third rotating ring.

[0032] More preferably, it also includes:

[0033] A deceleration module is installed on the furnace cover. The input shaft of the deceleration module is fixedly connected to the rotating wheel. The deceleration module is fixedly connected to a third fixed shell. An L-shaped rod is slidably connected inside the third fixed shell. The L-shaped rod is located on the moving path of the moving module.

[0034] A wire sleeve is fixed between the third fixed shell and the second fixed shell. A wire core is slidably connected inside the wire sleeve. One side of the wire core is fixed to the sliding column, and the other side of the wire core is fixed to the output shaft of the deceleration module. The L-shaped rod is used to compress the wire core.

[0035] More preferably, it also includes:

[0036] The number of protrusions is the same as the number of rotating blocks, and they are fixed to adjacent rotating blocks respectively. The air blowing pipe is provided with an arc-shaped slide rail with the same number of protrusions, and the protrusions slide in adjacent arc-shaped slide rails.

[0037] The beneficial effects of the above technical solution are as follows: the present invention stores excess steam generated by the boiler through a gas storage shell, avoiding the direct discharge of steam into the atmosphere, reducing energy loss, and when the rate of steam generation by the boiler decreases, the steam stored in the gas storage shell is transported back to the steam transmission pipeline, improving the utilization rate of steam and achieving the purpose of energy saving.

[0038] By increasing the flow rate of high-pressure steam blown out of the air blowing pipe, the impact force of the high-pressure steam blown out of the air blowing pipe on the fly ash is increased when cleaning areas with a lot of fly ash on the heat exchange tubes, thereby improving the cleaning effect on areas with a lot of fly ash on the heat exchange tubes.

[0039] By changing the blowing direction of the air pipe and the inclined arrangement of the connecting pipe, the coverage of the gas blown out of the air pipe on the heat exchange tube is increased, which improves the cleaning effect of fly ash on the heat exchange tube and improves the heat transfer efficiency of the heat exchange tube. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0041] Figure 2 This is a three-dimensional structural diagram of the fixing rod and the guide tube of the present invention;

[0042] Figure 3 This is a three-dimensional structural diagram of the gas storage shell and sliding plate of the present invention;

[0043] Figure 4 This is a three-dimensional structural diagram of the connecting pipe and branch pipe of the present invention;

[0044] Figure 5This is a three-dimensional structural diagram of the commutation module and deceleration module of the present invention;

[0045] Figure 6 This is a three-dimensional structural diagram of the support frame and air blowing pipe of the present invention;

[0046] Figure 7 This is a three-dimensional structural diagram of the rotating wheel and the third fixed shell of the present invention;

[0047] Figure 8 This is a three-dimensional structural diagram of the L-shaped rod and the wire core of the present invention;

[0048] Figure 9 This is a three-dimensional structural diagram of the rotating block and the first fixed shell of the present invention;

[0049] Figure 10 This is a three-dimensional structural diagram of the first elastic element and the second elastic element of the present invention;

[0050] Figure 11 This is an exploded view of the internal components of the first fixed shell of the present invention;

[0051] Figure 12 This is a three-dimensional structural diagram of the second fixed shell and the second rotating ring of the present invention;

[0052] Figure 13 This is a three-dimensional structural diagram of the third rotating ring and sliding column of the present invention;

[0053] Figure 14 This is a three-dimensional structural diagram of the pull rope and the third elastic element of the present invention.

[0054] In the above attached diagrams: 1: Furnace body, 2: Furnace cover, 201: Gas storage shell, 202: Sliding plate, 203: First intermediate pipe, 204: Second intermediate pipe, 3: Fixed rod, 4: Connecting pipe, 5: Guide pipe, 6: Branch pipe, 7: Water inlet guide shell, 8: Gas guide shell, 9: Support frame, 10: Moving module, 11: Air blowing pipe, 12: Gas guide pipe, 13: Reversing module, 14: Rotating wheel, 15: Transmission rod, 16: Rotating block, 1601: The first 17: First fixed shell; 1701: Elastic tube; 1702: Extrusion block; 1703: First rotating ring; 1704: Second elastic element; 18: Second fixed shell; 19: Second rotating ring; 20: Third rotating ring; 22: Pull rope; 23: Sliding column; 24: Third elastic element; 25: Deceleration module; 26: Third fixed shell; 27: L-shaped rod; 28: Wire sleeve; 29: Wire core; 30: Protrusion; 31: Arc-shaped slide. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0056] Example 1: An energy-saving boiler with a soot blowing device, please refer to [link / reference]. Figures 1-4 The system includes: a furnace body 1, with a furnace cover 2 mounted on the upper side of the furnace body 1; a gas storage shell 201, mounted on the furnace cover 2, with a sliding plate 202 slidably connected inside the gas storage shell 201; an elastic telescopic rod for moving the sliding plate 202 is fixedly connected between the gas storage shell 201 and the sliding plate 202; a first intermediate pipe 203 and a second intermediate pipe 204 are fixedly connected and connected to the gas storage shell 201; a first pressure relief valve is installed inside the first intermediate pipe 203; a one-way valve is installed inside the second intermediate pipe 204; and a second pressure relief valve communicating with the outside is provided on the side wall of the gas storage shell 201. Pressure valve; heat exchange assembly, installed on furnace cover 2, used to generate steam, the heat exchange assembly includes: two connecting pipes 4, both installed on furnace cover 2, both sides of the connecting pipes 4 are rotatably connected to guide pipes 5 passing through furnace cover 2 and rotatably connected to furnace cover 2; water inlet guide shell 7, installed on furnace cover 2, furnace cover 2 is installed with air guide shell 8, air guide shell 8 is fixedly connected and connected to exhaust pipes that are connected to both the first intermediate pipe 203 and the second intermediate pipe 204, the two guide pipes 5 on the same connecting pipe 4 are rotatably connected and connected to water inlet guide shell 7 and air guide shell 8 respectively.

[0057] In the above scheme, the furnace body 1 is an existing steam boiler. The furnace body 1 is equipped with a feed inlet for adding coal into the furnace body 1. An air inlet pipe is connected to the lower side of the furnace body 1 for supplementing oxygen into the furnace body 1. An exhaust pipe is connected to the upper side of the furnace body 1 for discharging flue gas from the furnace body 1. Multiple heat exchange components can be set according to the volume of the furnace body 1. Four are shown in the figure as an example, and one will be described in the following description. The connecting pipe 4 and the guide pipe 5 are both made of metal with high thermal conductivity and high temperature resistance (such as stainless steel). The water inlet guide shell 7 is connected to a water supply pipe for holding water into the water inlet guide shell 7. Continuous water supply; the exhaust pipe of the air guide shell 8 is used to receive steam inside the air guide shell 8; the air storage shell 201 is used to store steam inside the exhaust pipe of the air guide shell 8; the flow direction of the first pressure relief valve in the first intermediate pipe 203 is from the side near the exhaust pipe of the air guide shell 8 to the side near the air storage shell 201; the flow direction of the one-way valve in the second intermediate pipe 204 is from the side near the air storage shell 201 to the side near the exhaust pipe of the air guide shell 8; the pressure that the second pressure relief valve on the air storage shell 201 can withstand is greater than the pressure that the first pressure relief valve in the first intermediate pipe 203 can withstand.

[0058] Please see Figure 2 and Figures 4-6 The heat exchange assembly also includes: fixed rods 3, the same number as the connecting pipes 4, all fixed to the furnace cover 2, and fixed rods 3 to adjacent connecting pipes 4; branch pipes 6, the same number as the guide pipes 5, fixed to adjacent guide pipes 5 respectively, and both sides of the branch pipes 6 are connected to the guide pipes 5; a soot blowing assembly, set on the furnace cover 2, used to clean the dust on the guide pipes 5; and a drive assembly, set on the furnace cover 2, used to drive the guide pipes 5 to rotate.

[0059] In the above scheme, the fixing rod 3 is used to improve the stability of the connecting pipe 4, the branch pipe 6 is made of a metal material with high thermal conductivity and high temperature resistance (it can be stainless steel), the guide pipe 5 consists of an inlet section, a throat and an outlet section, one side of the branch pipe 6 is connected to the connection part of the inlet section and the throat of the guide pipe 5, and the other side of the branch pipe 6 is connected to the connection part of the throat and the outlet section of the guide pipe 5. The flow rate of the throat of the guide pipe 5 is half of the flow rate of the inlet section and the outlet section of the guide pipe 5, and the flow rate of the branch pipe 6 is the same as the flow rate of the throat of the guide pipe 5.

[0060] Please see Figure 1 , Figure 6 , Figure 7 , Figure 9 and Figure 12 The soot blowing assembly includes: a support frame 9, installed on the furnace cover 2, with a movable module 10 slidably connected to the support frame 9, and an electric rotating shaft on the movable module 10; an air blowing pipe 11, fixed to the electric rotating shaft of the movable module 10, passing through the furnace cover 2 and slidably connected to the furnace cover 2 in a sealed manner, with an air blowing port on the side of the air blowing pipe 11 away from the movable module 10; and an air guide pipe 12 fixed to the support frame 9, passing through the movable module 10 and slidably connected to the air blowing pipe 11 in a sealed manner, with the air guide pipe 12 located inside the air blowing pipe 11.

[0061] In the above scheme, when the number of heat exchange components increases, the number of soot blowing components also increases. The moving module 10 is used to drive the air blowing pipe 11 to move up and down. The electric rotating shaft of the moving module 10 is used to drive the air blowing pipe 11 to rotate. The air guide pipe 12 is connected to the air supply pipe. The air supply pipe of the air guide pipe 12 is connected to the external air supply device. The air blowing port of the air blowing pipe 11 is set to at least two. The air blowing port of the air blowing pipe 11 is used to guide the high-pressure steam in the air blowing pipe 11.

[0062] Please see Figure 1 , Figure 2 and Figures 4-7 The drive assembly includes: a reversing module 13, installed on the furnace cover 2, with a rotating wheel 14 fixedly connected to the input shaft of the reversing module 13; the reversing module 13 is located between two guide pipes 5 on the same connecting pipe 4; the output shaft of the reversing module 13 is drivenly connected to both guide pipes 5 on the same connecting pipe 4; the two guide pipes 5 connected to the water inlet guide shell 7 are drivenly connected through a transmission component; and the two guide pipes 5 connected to the air guide shell 8 are drivenly connected through a transmission component; and a transmission rod 15, fixedly connected to the moving module 10; the transmission rod 15 passes through the furnace cover 2 and is slidably connected to the furnace cover 2; and the transmission rod 15 is drivenly connected to the rotating wheel 14.

[0063] In the above scheme, when the number of heat exchange components increases, the number of drive components also increases. The reversing module 13 is an existing reversing gearbox. The rotation of the input shaft of the reversing module 13 can drive the output shaft of the reversing module 13 to reciprocate. The transmission methods between the reversing module 13 and the two guide pipes 5 on the same connecting pipe 4 are gear reversing transmission and belt and pulley co-directional transmission, respectively, to make the rotation directions of the two guide pipes 5 on the same connecting pipe 4 opposite. The transmission component between two adjacent guide pipes 5 on different connecting pipes 4 is belt and pulley co-directional transmission. The transmission rod 15 drives the rotating wheel 14 to rotate through friction.

[0064] When using this device to generate steam, the operator adds coal to the furnace body 1 and starts the burner. The burner ignites the coal, and the high-temperature flue gas generated by the combustion of the coal heats the guide pipe 5 and the connecting pipe 4. Then, water is pumped into the water inlet guide shell 7 through an external water pump. The water to be heated flows through the guide pipe 5 on the water inlet guide shell 7 into the connecting pipe 4. During the process of the water flowing through the guide pipe 5 and the connecting pipe 4, it exchanges heat with the heat in the furnace body 1, thereby heating the water. When the water flows through the inlet section of the guide pipe 5 on the water inlet guide shell 7 and enters the throat of the guide pipe 5, because the flow rate at the throat of the guide pipe 5 is less than the flow rate at the inlet section of the guide pipe 5, a portion of the water will enter the branch pipe 6. The water flowing into the branch pipe 6 also exchanges heat with the heat in the furnace body 1. After passing through the entire branch pipe 6, the water flowing into the outlet section of the guide pipe 5 enters the outlet section of the guide pipe 5 and is finally discharged into the connecting pipe 4 through the outlet section of the guide pipe 5.

[0065] When the water flows through the connecting pipe 4 into the guide pipe 5 of the gas guide shell 8, the water flow entering the guide pipe 5 is also split into the throat and branch pipe 6 of the guide pipe 5. At this time, the water in the throat and branch pipe 6 of the guide pipe 5 on the gas guide shell 8 is evaporated into steam. The steam formed by evaporation passes through the throat and branch pipe 6 of the guide pipe 5 and finally converges through the outlet section of the guide pipe 5 and is discharged through the gas guide shell 8. The steam entering the gas guide shell 8 is transported to the required location through the exhaust pipe on it. The vertical arrangement of the guide pipe 5 increases the contact area between the high temperature flue gas and the guide pipe 5. At the same time, the branch pipe 6 increases the contact area between the water flow and the heat in the furnace body 1, thereby improving the heat utilization rate in the furnace body 1.

[0066] During the process of transporting steam through the gas guide shell 8 and its exhaust pipe, when the temperature inside the furnace body 1 rises, the water in the guide pipe 5, branch pipe 6, and connecting pipe 4 is rapidly heated, which increases the steam production rate and causes the pressure inside the gas guide shell 8 and its exhaust pipe to increase. At this time, the first pressure relief valve in the first intermediate pipe 203 opens, and some of the steam in the exhaust pipe of the gas guide shell 8 enters the gas storage shell 201 through the first intermediate pipe 203. The steam entering the gas storage shell 201 pushes the sliding plate 202 to move upward and compresses the elastic telescopic rod on the gas storage shell 201. The gas storage shell 201 temporarily stores the excess steam, keeping the pressure inside the gas guide shell 8 and its exhaust pipe stable. When the temperature inside the furnace body 1 decreases, the steam production rate slows down, the pressure inside the gas guide shell 8 and its exhaust pipe decreases, and the first pressure relief valve in the first intermediate pipe 203 closes.

[0067] After the first pressure relief valve in the first intermediate pipe 203 is closed, the elastic telescopic rod on the gas storage shell 201 resets under its own elastic force and drives the sliding plate 202 to move downward. The downward movement of the sliding plate 202 pushes the steam in the gas storage shell 201 into the exhaust pipe of the gas guide shell 8 through the second intermediate pipe 204 and the one-way valve therein, until the elastic telescopic rod of the gas storage shell 201 is completely reset and then stops. Subsequently, when the temperature in the furnace body 1 rises again, the above actions are repeated. By storing the steam in the exhaust pipe of the gas guide shell 8 through the gas storage shell 201, excess steam is avoided from being directly discharged into the air, reducing steam loss and achieving the purpose of energy saving.

[0068] During the process of steam entering the gas storage tank 201 from the exhaust pipe of the gas guide shell 8, before the steam pressure inside the gas storage tank 201 reaches the limit pressure that the gas storage tank 201 can withstand, the second pressure relief valve on the gas storage tank 201 opens to discharge excess steam into the air, so as to avoid the gas storage tank 201 and the first intermediate pipe 203 and the second intermediate pipe 204 being damaged due to excessive pressure inside the gas storage tank 201, and to extend the service life of the gas storage tank 201.

[0069] During the steam supply process using this device, as the flue gas rises, small particles of incomplete combustion in the flue gas will adhere to the surface of the guide pipe 5 and branch pipe 6. These small particles (hereinafter referred to as fly ash) on the surface of the guide pipe 5 and branch pipe 6 will insulate some of the heat, reducing the heat conduction efficiency of the guide pipe 5 and branch pipe 6. At this time, the operator starts the moving module 10 and simultaneously delivers high-pressure steam into the air pipe 12 through the external air supply device. After the moving module 10 is started, it moves downward along the support frame 9, and drives the parts on it to move synchronously. During this process, the electric rotating shaft of the moving module 10 drives the blowing pipe 11 to rotate, so that the blowing pipe 11 rotates synchronously when moving downward. The blowing pipe 11 and the guide pipe 12 slide relative to each other. During the downward movement of the blowing pipe 11, the high-pressure steam in the guide pipe 12 enters the blowing pipe 11 and is ejected through the blowing port of the blowing pipe 11, thereby cleaning the fly ash on the surface of the guide pipe 5 and branch pipe 6.

[0070] As the moving module 10 moves downward, the transmission rod 15 drives the rotating wheel 14 to rotate through friction. The rotation of the rotating wheel 14 drives the input shaft of the reversing module 13 to rotate, which in turn causes the output shaft of the reversing module 13 to rotate back and forth. The rotation of the output shaft of the reversing module 13 drives the two adjacent guide pipes 5 to rotate through the gears and pulleys on it. At this time, the two guide pipes 5 on the same connecting pipe 4 rotate in opposite directions, causing the guide pipes 5 to drive the branch pipes 6 on them to swing towards each other. The rotation of the guide pipes 5 drives the adjacent guide pipes 5 to rotate through the transmission components on them, which in turn causes the four branch pipes 6 to swing towards the common center point. During the reversing rotation of the output shaft of the reversing module 13, the guide pipes 5 also rotate back and forth and drive the branch pipes 6 to swing back and forth, thus repeating the cycle.

[0071] During the reciprocating rotation of the guide pipe 5, the high-pressure steam blown out by the air blowing pipe 11 continuously cleans the fly ash on the surface of the guide pipe 5 and the branch pipe 6. The reciprocating rotation of the guide pipe 5 increases the cleaning area of ​​the guide pipe 5 and the branch pipe 6, improving the cleaning effect. After the moving module 10 drives the air blowing pipe 11 to move the air blowing port of the air blowing pipe 11 to the lower side of the connecting pipe 4 and cleans the connecting pipe 4, the operator controls the moving module 10 to move upward. During the upward movement of the moving module 10, the transmission rod 15 drives the rotating wheel 14 to reverse due to friction, and the guide pipe 5 and the branch pipe 6 continue to rotate. The air blowing pipe 11 also cleans the guide pipe 5 and the branch pipe 6 until the moving module 10 moves back to its original position. The operator then turns off the moving module 10 and the external air supply device. After the moving module 10 stops, the rotating wheel 14 stops rotating, and the guide pipe 5 and the branch pipe 6 are reset. The above actions are repeated when the guide pipe 5 and the branch pipe 6 need to be cleaned again.

[0072] Example 2: Based on Example 1, please refer to... Figure 7 , Figure 9 and Figure 10 It also includes an air guiding component, which is disposed inside the air blowing pipe 11 and is used to change the direction of air blowing from the air blowing pipe 11. The air guiding component includes: a plurality of rotating blocks 16, all of which are sealed and rotatably connected to the air blowing pipe 11. The rotating blocks 16 have through holes, and the through holes of the rotating blocks 16 connect the inside of the air blowing pipe 11 to the outside. A first elastic member 1601 is fixedly connected between the rotating blocks 16 and the air blowing pipe 11.

[0073] In the above scheme, the rotating block 16 is set as a ball, and there are at least two rotating blocks 16. The rotating block 16 is located inside the air blowing port of the air blowing pipe 11, and the air blowing port of the air blowing pipe 11 is replaced by the through hole on the rotating block 16. The first elastic element 1601 is set as a tension spring, which is used to drive the rotating block 16 to reset. The rotating block 16 is made of high temperature resistant material (can be stainless steel).

[0074] Please see Figures 9-11 The air guiding assembly also includes: a first fixed shell 17, the number of which is the same as the number of rotating blocks 16, which are fixedly connected to adjacent rotating blocks 16 respectively. The first fixed shell 17 is located outside the air blowing pipe 11. The first fixed shell 17 is fixedly connected to and connected to an elastic tube 1701. The elastic tube 1701 is connected to the through hole of the adjacent rotating block 16. The elastic tube 1701 is located inside the adjacent first fixed shell 17. A plurality of compression blocks 1702 are slidably connected inside the first fixed shell 17. The compression blocks 1702 are located between the adjacent first fixed shell 17 and the adjacent elastic tube 1701. The compression blocks 1702 are used to compress the adjacent elastic tube 1701.

[0075] In the above scheme, the extrusion block 1702 is composed of a rectangular plate and an arc-shaped block. The rectangular plate of the extrusion block 1702 slides inside the first fixed shell 17, and the arc-shaped block of the extrusion block 1702 is used to extrude the elastic tube 1701. The elastic tube 1701 is made of a high-temperature resistant material (such as silicone rubber). The extrusion block 1702 extrudes the elastic tube 1701, which can reduce the inner diameter of the elastic tube 1701, thereby increasing the gas flow rate through the elastic tube 1701. Several extrusion blocks 1702 are evenly distributed in the circumference to ensure that the extrusion blocks 1702 extrude the elastic tube 1701 evenly.

[0076] Please see Figures 9-11 It also includes: a first rotating ring 1703, the number of which is the same as the number of the first fixed shells 17, which are rotatably connected to the outer periphery of the adjacent first fixed shells 17. The first fixed shells 17 have a sliding groove on their periphery. The first rotating ring 1703 is fixedly connected to the first fixed shell 17 through the sliding groove of the first fixed shell 17. The second elastic element 1704 is located between the adjacent first fixed shells 17 and the adjacent extrusion block 1702. The second elastic element 1704 is used to extrude the adjacent extrusion block 1702.

[0077] In the above scheme, the first rotating ring 1703 is composed of a circular ring and a T-shaped block. The T-shaped block of the first rotating ring 1703 is slidably connected to the groove of the first fixed shell 17. The second elastic element 1704 is fixedly connected to the T-shaped block of the first rotating ring 1703. The second elastic element 1704 is set as a torsion spring. When the second elastic element 1704 is subjected to torque, its inner diameter will shrink.

[0078] Please see Figure 6 and Figures 12-14 It also includes: a second fixed shell 18, fixedly connected to the moving module 10, an air blowing pipe 11 passing through the second fixed shell 18 and rotatably connected to the second fixed shell 18, a second rotating ring 19 slidably connected inside the second fixed shell 18, the second rotating ring 19 being splinedly connected to the air blowing pipe 11, a third rotating ring 20 rotatably connected to the second rotating ring 19, a pull rope 22 fixedly connected between the first rotating ring 1703 and the second rotating ring 19, the pull rope 22 being located inside the side wall of the air blowing pipe 11; a sliding column 23, slidably connected to the second fixed shell 18, and a third elastic element 24 fixedly connected between the two, the sliding column 23 being fixedly connected to the third rotating ring 20.

[0079] In the above scheme, the second rotating ring 19 is used to pull the pull rope 22 to move, the sliding column 23 is used to drive the third rotating ring 20 to move, the second rotating ring 19 is splined connected to the air pipe 11, and the second rotating ring 19 rotates synchronously with the air pipe 11 so that the second rotating ring 19 can only pull the third rotating ring 20 to move upward. The pull rope 22 is used to pull the first rotating ring 1703 to rotate. The pull rope 22 is made of high temperature resistant material (it can be stainless steel wire rope). The third elastic element 24 is set as a spring and is used to drive the sliding column 23 to reset.

[0080] Please see Figures 4-8 It also includes: a deceleration module 25, installed on the furnace cover 2, the input shaft of the deceleration module 25 is fixedly connected to the rotating wheel 14, the deceleration module 25 is fixedly connected to a third fixed shell 26, an L-shaped rod 27 is slidably connected inside the third fixed shell 26, the L-shaped rod 27 is located on the moving path of the moving module 10; a wire sleeve 28, fixedly connected between the third fixed shell 26 and the second fixed shell 18, a wire core 29 is slidably connected inside the wire sleeve 28, one side of the wire core 29 is fixedly connected to the sliding column 23, the other side of the wire core 29 is fixedly connected to the output shaft of the deceleration module 25, and the L-shaped rod 27 is used to compress the wire core 29.

[0081] In the above scheme, the deceleration module 25 is an existing reducer. The rotating wheel 14 drives the input shaft of the deceleration module 25 to rotate, so that the output shaft of the deceleration module 25 rotates slowly. The output shaft of the deceleration module 25 can be fixedly connected to the rotating wheel. The wire core 29 is fixedly connected to the output shaft of the deceleration module 25 through the rotating wheel. The L-shaped rod 27 has an inclined surface on the side near the wire core 29, so that the wire core 29 can bend smoothly when the L-shaped rod 27 squeezes the wire core 29. The distance between the two connecting tubes 4 in the horizontal direction gradually increases from bottom to top.

[0082] Please see Figure 9 and Figure 10 It also includes: protrusions 30, the number of which is the same as the number of rotating blocks 16, which are fixed to adjacent rotating blocks 16 respectively; and an arc-shaped slide 31 with the same number of protrusions 30 is provided in the air pipe 11, and the protrusions 30 slide in the adjacent arc-shaped slide 31.

[0083] In the above scheme, the center line of the projection of the arc-shaped slide 31 onto the horizontal plane is a straight line, and the straight line is perpendicular to the axis of the air blowing pipe 11. The arc-shaped slide 31 limits the rotating block 16 through the protrusion 30, so that the rotating block 16 can only swing up and down, thereby improving the stability of the rotating block 16 when rotating.

[0084] During the downward movement of the air pipe 11 to clean the guide pipe 5 and branch pipe 6, the rotating wheel 14 rotates, causing the input shaft of the reduction module 25 to rotate continuously, which in turn causes the output shaft of the reduction module 25 to rotate slowly. The rotation of the output shaft of the reduction module 25 causes the wire core 29 to gradually wind around the output shaft of the reduction module 25, thereby pulling the wire core 29 to slide within the wire sleeve 28. The wire core 29, through the sliding column 23, pulls the third rotating ring 20 upward, simultaneously causing the third elastic element 24 to gradually compress. The movement of the third rotating ring 20 drives the second rotating ring 19 to move upward. (During the rotation of the air pipe 11, the air pipe 11 and the second fixed shell...) 18 rotates relative to each other, and at the same time, the air blowing pipe 11 drives the second rotating ring 19 to rotate synchronously (the second rotating ring 19 and the third rotating ring 20 rotate relative to each other). The second rotating ring 19 moves and pulls the pull rope 22 to slide inside the air blowing pipe 11. The pull rope 22 pulls the first rotating ring 1703 to rotate. The rotation of the first rotating ring 1703 causes the second elastic element 1704 to store force. The inner diameter of the second elastic element 1704 will decrease due to the storage of force, so that the second elastic element 1704 squeezes the squeezing block 1702. After being squeezed, the squeezing block 1702 moves in the axial direction of the first fixed shell 17. Finally, the squeezing block 1702 squeezes the elastic tube 1701.

[0085] When the elastic tube 1701 is compressed, its inner diameter shrinks. When the high-pressure steam in the blowing pipe 11 passes through the through hole of the rotating block 16 and through the elastic tube 1701 with its inner diameter shrinks, the flow rate of the high-pressure steam blown out of the blowing pipe 11 increases. As the blowing pipe 11 continues to move downward, the inner diameter of the elastic tube 1701 gradually shrinks, which gradually increases the flow rate of the high-pressure steam in the blowing pipe 11. This gradually increases the impact force of the high-pressure steam in the blowing pipe 11 on the guide pipe 5 and the branch pipe 6, and increases the cleaning force in the lower part of the guide pipe 5 and the branch pipe 6 where there is more fly ash, thereby improving the cleaning effect of the guide pipe 5 and the branch pipe 6.

[0086] When the first fixed shell 17 moves to the horizontal position of the connecting pipe 4, the high-pressure steam blown out from the elastic tube 1701 first cleans the fly ash on the upper side of the connecting pipe 4. When the elastic tube 1701 moves to the lower horizontal position of the connecting pipe 4, the second elastic element 1704 is twisted to its limit state. The L-shaped rod 27 is squeezed by the moving module 10 and moves downward. The L-shaped rod 27 moves and squeezes the wire core 29, causing the wire core 29 to bend. Because the input shaft of the deceleration module 25 cannot overcome the gap between the transmission rod 15 and the rotating wheel 14... Due to friction, the bending of the wire core 29 does not cause the output shaft of the deceleration module 25 to reverse, thus causing the wire core 29 to quickly pull the sliding column 23 upward and further compress the third elastic element 24. The movement of the sliding column 23 pulls the pull rope 22 to move quickly through the third rotating ring 20 and the second rotating ring 19. Since the second elastic element 1704 is twisted to its limit at this time, the pull rope 22 applies an upward pulling force to the first fixed shell 17 through the first rotating ring 1703, causing the first fixed shell 17 to drive the rotating block 16 to rotate upward.

[0087] When the rotating block 16 rotates, it causes the protrusion 30 to slide within the arc-shaped slide rail 31 and stretches the first elastic element 1601. Ultimately, the elastic tube 1701 tilts upward from the side closest to the rotating block 16 to the side furthest away, so that the high-pressure steam blown out from the elastic tube 1701 cleans the fly ash on the lower side of the connecting pipe 4, thereby completely cleaning the connecting pipe 4 and improving the cleanliness of the connecting pipe 4. After the connecting pipe 4 is cleaned, during the upward movement of the moving module 10, the moving module 10 first releases the pressure on the L-shaped rod 27. The elastic force of the third elastic element 24 is partially released and drives the sliding column 23 to move downward. The sliding column 23 moves and pulls the wire core 29, straightening the bent part of the wire core 29. The straightened wire core 29 drives the L-shaped rod 27 to move upward and reset.

[0088] The sliding column 23 moves, causing the second rotating ring 19 to move downward via the third rotating ring 20. This causes the second rotating ring 19 to release part of its tension on the pull rope 22, thereby releasing the tension of the first elastic element 1601. The release of the tension of the first elastic element 1601 causes the rotating block 16 to rotate and reset. At the same time, the protrusion 30 slides and resets within the arc-shaped slide rail 31. The rotation and reset of the rotating block 16 causes the first fixed shell 17 to reset. Subsequently, as the air pipe 11 gradually moves upward, the transmission rod 15 causes the rotating wheel 14 to rotate in the opposite direction. The rotating wheel 14 causes the output shaft of the deceleration module 25 to rotate in the opposite direction via the input shaft of the deceleration module 25, thereby releasing the wire core 29 wound on the output shaft of the deceleration module 25.

[0089] After the core 29 is released, the sliding column 23 gradually moves and resets under the elastic force of the third elastic element 24, pulling the core 29 to gradually reset. The reset of the sliding column 23 drives the second rotating ring 19 to move downward and reset through the third rotating ring 20, so that the second rotating ring 19 releases the tension on the pull rope 22. The tension on the first rotating ring 1703 is released. The second elastic element 1704 resets under its own torque and drives the first rotating ring 1703 to reset. The reset of the first rotating ring 1703 pulls the pull rope 22 to reset. At the same time, the second elastic element 1704 releases the pressure on the squeezing block 1702. The squeezing block 1702 releases the pressure on the elastic tube 1701. The elastic tube 1701 resets under its own elasticity and pushes the squeezing block 1702 to move and reset. The air blowing pipe 11 stops after moving upward and reset. The above actions are repeated when the air blowing pipe 11 cleans the guide pipe 5 and the branch pipe 6 again.

[0090] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy saving boiler with soot blowing device, characterized in that, The utility model relates to a kind of steam generator, including: Furnace body (1), the furnace cover (2) is installed on the upper side of furnace body (1); Gas storage shell (201) is installed to the furnace cover (2), sliding plate (202) is sealingly connected in the gas storage shell (201), elastic telescopic rod for driving the sliding plate (202) to move is commonly fixed to the gas storage shell (201) with the sliding plate (202), the first intermediate pipe (203) and the second intermediate pipe (204) are fixed and communicated with the gas storage shell (201), first pressure relief valve is provided in the first intermediate pipe (203), one-way valve is provided in the second intermediate pipe (204), second pressure relief valve is provided on the side wall of the gas storage shell (201) and communicated with the outside world; Heat exchange assembly is provided on the furnace cover (2) for generating steam, and the heat exchange assembly includes: Two connecting pipes (4) are provided on the furnace cover (2), and the two connecting pipes (4) are sealingly and rotatably connected with the flow guide pipe (5) penetrating through the furnace cover (2) and sealingly and rotatably connected with the furnace cover (2) on both sides of the connecting pipe (4); Water inlet flow guide shell (7) is installed on the furnace cover (2), and air guide shell (8) is installed on the furnace cover (2), the air guide shell (8) is fixed and communicated with the exhaust pipe communicated with the first intermediate pipe (203) and the second intermediate pipe (204), the two flow guide pipes (5) on the same connecting pipe (4) are rotatably connected with the water inlet flow guide shell (7) and the air guide shell (8) and communicated; The soot blowing assembly is provided on the furnace cover (2) for cleaning dust on the flow guide pipe (5); The soot blowing assembly includes: Support frame (9) is installed on the furnace cover (2), and the support frame (9) is slidingly connected with the moving module (10), and the moving module (10) is provided with an electric rotating shaft; Air blowing pipe (11) is fixed to the electric rotating shaft of the moving module (10), the air blowing pipe (11) penetrates through the furnace cover (2) and is sealingly and slidingly connected with the furnace cover (2), the air blowing pipe (11) is provided with an air blowing port on the side away from the moving module (10), the support frame (9) is fixed with the air guide pipe (12), the air guide pipe (12) penetrates through the moving module (10) and is sealingly and slidingly connected with the air blowing pipe (11), and the air guide pipe (12) is located in the inside of the air blowing pipe (11); It further includes an air guide assembly arranged in the air blowing pipe (11) for changing the direction of air blowing of the air blowing pipe (11), and the air guide assembly includes: A plurality of rotating blocks (16) are sealingly and rotatably connected to the air blowing pipe (11), the rotating blocks (16) are provided with through holes, the through holes of the rotating blocks (16) communicate the inside of the air blowing pipe (11) with the outside, and the first elastic member (1601) is fixed between the rotating blocks (16) and the air blowing pipe (11); The air guide assembly further includes: A first fixed shell (17) is in consistent with the number of the rotating blocks (16), and is fixedly connected to the adjacent rotating blocks (16) respectively. The first fixed shell (17) is located outside the blowing pipe (11). The first fixed shell (17) is fixedly connected and communicated with an elastic pipe (1701). The elastic pipe (1701) is communicated with the through holes of the adjacent rotating blocks (16). The elastic pipe (1701) is located inside the adjacent first fixed shell (17). A plurality of extrusion blocks (1702) are slidably connected in the first fixed shell (17). The extrusion blocks (1702) are located between the adjacent first fixed shell (17) and the adjacent elastic pipe (1701). The extrusion blocks (1702) are used for extruding the adjacent elastic pipe (1701).

2. An energy saving boiler with soot blowing device as claimed in claim 1, characterized in that The heat exchange assembly further comprises: A fixed rod (3) is in consistent with the number of the connecting pipes (4), and is fixedly connected to the furnace cover (2). The fixed rod (3) is fixedly connected with the adjacent connecting pipe (4); A branch pipe (6) is in consistent with the number of the flow guide pipes (5), and is fixedly connected to the adjacent flow guide pipes (5). The two sides of the branch pipe (6) are communicated with the flow guide pipes (5); A driving assembly is arranged on the furnace cover (2) and is used for driving the flow guide pipes (5) to rotate.

3. An energy saving boiler with soot blowing device as claimed in claim 2, characterized in that The driving assembly comprises: A reversing module (13) is installed on the furnace cover (2). An input shaft of the reversing module (13) is fixedly connected with a rotating wheel (14). The reversing module (13) is located between the two flow guide pipes (5) of the same connecting pipe (4). An output shaft of the reversing module (13) is drivingly connected with the two flow guide pipes (5) on the same connecting pipe (4). The two flow guide pipes (5) communicated with the water inlet flow guide shell (7) are drivingly connected through a transmission member. The two flow guide pipes (5) communicated with the air guide shell (8) are drivingly connected through a transmission member; A transmission rod (15) is fixedly connected to the moving module (10). The transmission rod (15) penetrates through the furnace cover (2) and is sealingly and slidably connected with the furnace cover (2). The transmission rod (15) is drivingly connected with the rotating wheel (14).

4. An energy saving boiler with soot blowing device according to claim 3, characterized in that It comprises: A first rotating ring (1703) is in consistent with the number of the first fixed shells (17), and is rotatably connected to the outer circumferential side of the adjacent first fixed shells (17) respectively. A sliding groove is formed in the circumferential side of the first fixed shell (17). A second elastic member (1704) is fixedly connected between the first fixed shell (17) and the first rotating ring (1703) through the sliding groove of the first fixed shell (17). The second elastic member (1704) is located between the adjacent first fixed shell (17) and the adjacent extrusion block (1702). The second elastic member (1704) is used for extruding the adjacent extrusion block (1702).

5. An energy saving boiler with soot blowing device as claimed in claim 4, characterized in that it further comprises It comprises: Second fixed shell (18), fixed to the mobile module (10), the blowing pipe (11) through the second fixed shell (18) and with the second fixed shell (18) rotation connection, the second fixed shell (18) sliding connection has the second rotation ring (19), the second rotation ring (19) and the blowing pipe (11) spline connection, the second rotation ring (19) rotation connection has the third rotation ring (20), the first rotation ring (1703) and the second rotation ring (19) between fixed pull rope (22), the pull rope (22) in the blowing pipe (11) side wall; Sliding column (23), sliding connection in the second fixed shell (18), and between the third elastic piece (24) is fixed, the sliding column (23) and the third rotation ring (20) are fixed.

6. An energy saving boiler with soot blowing device according to claim 5, characterized in that Including: Speed reduction module (25), installed in the furnace cover (2), the input shaft of the speed reduction module (25) and the rotating wheel (14) are fixed, the speed reduction module (25) is fixed with the third fixed shell (26), the third fixed shell (26) is slidingly connected with the L-shaped rod (27) in the third fixed shell (26), the L-shaped rod (27) is located on the moving path of the mobile module (10); Wire sleeve (28), fixed between the third fixed shell (26) and the second fixed shell (18), the wire sleeve (28) is slidingly connected with the wire core (29), one side of the wire core (29) is fixed with the sliding column (23), the other side of the wire core (29) is fixed with the output shaft of the speed reduction module (25), the L-shaped rod (27) is used for extruding the wire core (29).

7. An energy saving boiler with soot blowing device according to claim 6, characterized in that it further comprises Including: Lugs (30), the number of the rotating block (16) is consistent with the number of the rotating block (16), respectively fixed to adjacent, the blowing pipe (11) is provided with the same number of arc slide (31) as the lug (30), the lug (30) is sliding in the adjacent arc slide (31).

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