A high efficiency heat exchanger for boiler
By designing an adjustable water tank and thermal fin plate structure in the boiler chimney, the problem of traditional heat exchangers being difficult to take into account both smoke flow and heat utilization when the combustion state changes, and efficient smoke discharge and heat utilization are achieved.
Patent Information
- Application Number
- CN202211504279.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2042-11-29
AI Technical Summary
When the combustion state of the heat exchanger in a traditional boiler chimney changes, it is difficult to take into account both the smoke flow and heat utilization rate, resulting in a reduced combustion effect or inefficient heat utilization.
A high-efficiency heat exchanger for boilers is designed, using an adjustable water tank and thermal fin plate structure. The posture of the water tank and thermal fin plate is automatically adjusted through the transmission part and the controller, and the smoke discharge flow and suction are adjusted in real time according to the combustion state of the boiler. Thermal effect.
It achieves the balance of smoke flow and heat utilization rate, improves combustion effect and heat utilization efficiency, and adapts to the needs of different combustion states.
Smart Images
Figure CN115900386B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a heat exchanger, in particular to a high-efficiency heat exchanger for a boiler. Background Art
[0002] In order to fully utilize the heat generated by the boiler during combustion, a heat exchanger is often used to collect the heat, that is, the heat generated by the boiler is absorbed by the fluid inside the heat exchanger, so as to achieve the purpose of utilizing the heat generated by the boiler. According to different needs, the installation position of the heat exchanger is also different. For example, in order to quickly heat the fluid in the heat exchanger, the heat exchanger will be installed near the combustion chamber so that the heat exchanger can be directly baked by the flame. For another example, in order to utilize the residual heat in the smoke generated by the combustion of fuel, a heat exchanger will be installed in the chimney to absorb and utilize this part of the heat. The traditional heat exchanger installed in the chimney has a fixed posture. When the combustion state of the boiler often changes, it is often difficult to balance the flow rate of the exhausted smoke and the heat utilization rate. For example, the smoke flow rates generated by the rapid combustion and low-speed combustion of the boiler must be different. If the heat exchanger in the chimney adopts the posture of low-speed combustion during rapid combustion, it is easy to cause the smoke to be unable to be discharged in time, thereby reducing the combustion effect and increasing the irrational use of fuel. During low-speed combustion, the heat exchanger in the chimney adopts the posture of high-speed combustion. Although the smoke can be discharged quickly, the rapid discharge of smoke will cause the heat exchanger to be heated for a shorter time, and the heat in the smoke cannot be used more efficiently, which highlights the shortcomings of the traditional heat exchanger installed in the boiler chimney. Summary of the invention
[0003] The object of the present invention is to provide a high-efficiency heat exchanger for a boiler to solve the above-mentioned technical problems.
[0004] To achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A high-efficiency heat exchanger for a boiler, comprising a support cylinder, a support plate, an articulated seat, a lower support shaft, a right water tank, a left water tank, a left water pipe, a right water pipe, a limiting ring, a short heat-conducting pipe, a long heat-conducting pipe, a heat-conducting fin plate, a left gear ring, a right gear ring, an upper support shaft, a water inlet pipe, a drain pipe, an adjusting part, and a transmission part. The front and rear parts of the support cylinder are rotatably connected to a horizontal support plate, and vertical articulated seats are respectively fixed to the bottom ends of the two support plates. The two articulated seats are rotatably connected to a horizontal lower support shaft together. A vertical right water tank is radially fixed to the lower support shaft, and a vertical left water tank is hinged to the middle part. The left water tank is sequentially provided with a plurality of horizontal left water pipes from top to bottom, and the right water tank is sequentially provided with a plurality of horizontal right water pipes from top to bottom. The water pipe and the right water pipe are coaxially fixed with limit rings on the outer walls in the middle part respectively, the front and rear parts of the left water pipe are coaxially rotatably connected with a horizontal short heat-conducting pipe, the front and rear parts of the right water pipe are coaxially rotatably connected with a horizontal long heat-conducting pipe, the upper and lower ends of the middle parts of the short heat-conducting pipe and the long heat-conducting pipe are radially fixed with axial heat-conducting fins, the short heat-conducting pipe is coaxially fixed with a left gear ring, and the long heat-conducting pipe is coaxially fixed with a right gear ring, the front and rear ends of the left water tank and the right water tank are respectively fixed with horizontal upper support shafts, the front ends of the left water tank and the right water tank are respectively provided with horizontal water inlet pipes, the rear ends of the left water tank and the right water tank are respectively provided with horizontal drain pipes, the left water tank and the right water tank are jointly equipped with an adjusting part, and the support plate and the support cylinder are jointly equipped with a transmission part.
[0006] On the basis of the above technical scheme, the adjusting part includes a left guide rail, a right guide rail, a left inclination angle sensor, a left push rod motor, a right inclination angle sensor, a right push rod motor, a left rack, a right rack, and a controller. The front and rear parts of the left water tank are each fixed with a vertical left guide rail, and the front and rear parts of the right water tank are each fixed with a vertical right guide rail. The inner wall of the left water tank is fixed with a left inclination angle sensor, and two vertical left push rod motors are fixed with the inner wall. The inner wall of the right water tank is fixed with a right inclination angle sensor, and two vertical right push rod motors are fixed with the inner wall. The bottom ends of the push rods of the two left push rod motors are respectively fixed with vertical left racks, and their push rods are The rod is sealed and slidably connected to the upper part of the left water tank, the bottom ends of the push rods of the two right push rod motors are respectively fixed with vertical right racks, and the push rods are sealed and slidably connected to the upper part of the right water tank, the two left racks are respectively meshed with the left gear rings of the short heat-conducting pipes at the front and rear parts of each left water pipe, and are respectively slidably connected to the two left guide rails, the two right racks are meshed with the right gear rings of the long heat-conducting pipes at the front and rear parts of each right water pipe, and are respectively slidably connected to the two right guide rails, a horizontal controller is fixed to the right end of the support tube, the left water pipes and the right water pipes are the same in number, and the left projections of the left water pipes and the right water pipes are staggered.
[0007] On the basis of the above technical scheme, the transmission part includes a transmission cylinder, an upper arc groove, a lower arc groove, a middle push rod motor, a large gear ring, a transmission seat, a transmission arm, a lead hole, a support seat, a deceleration brake motor, and a gear. The ends of the two support plates facing each other are coaxially fixed with a transmission cylinder, and the two support plates are sequentially provided with an upper arc groove and a lower arc groove penetrating therethrough from top to bottom. The top ends of the two transmission cylinders are respectively fixed with vertical middle push rod motors, and the outer walls are respectively coaxially fixed with large gear rings. The push rods of the two middle push rod motors are sealed and slidably connected to the transmission cylinder, and the bottom ends of the push rods are respectively fixed with vertical transmission cylinders. The two transmission seats are respectively hinged with a transmission arm, and each transmission arm is respectively hinged with an upper support shaft, and two horizontal through holes are respectively penetrated through the bottom of the two transmission cylinders, and horizontal support seats are respectively fixed at the front and rear ends of the support cylinders, and horizontal reduction brake motors are respectively fixed at the tops of the two support seats, and gears are respectively coaxially fixed to the rotating shafts of the two reduction brake motors, and the two gears are meshed with two large gear rings, the water inlet pipe and the drain pipe are coaxial, the two water inlet pipes and the two drain pipes are respectively slidably connected with the two lower arc grooves, and each upper support shaft is respectively slidably connected with the two upper arc grooves.
[0008] On the basis of the above technical scheme, the left inclination angle sensor, the left push rod motor, the right inclination angle sensor, the right push rod motor, the controller, the middle push rod motor and the deceleration brake motor are electrically connected, the controller is externally connected to a power supply, and when the left push rod motor is energized to extend and retract the push rod, the left rack and the left gear ring can drive the short heat conduction pipe to rotate around the left water pipe as the axis; when the right push rod motor is energized to extend and retract the push rod, the right rack and the right gear ring can drive the long heat conduction pipe to rotate around the right water pipe as the axis; when the middle push rod motor is energized to extend and retract the push rod, the transmission The seat, the transmission arm and the upper support shaft can enable the left water tank and the right water tank to open and contract with the lower support shaft as the axis. When the left water tank and the right water tank are opened and contracted with the lower support shaft as the axis, the water inlet pipe and the drain pipe can slide along the lower arc groove. When the left water tank and the right water tank are opened and contracted with the lower support shaft as the axis, the upper support shaft can slide along the upper arc groove. The two water inlet pipes are connected to the external water supply device through an external hose, and the two drain pipes are connected to the external water use device through an external hose.
[0009] Compared with the prior art, the present invention has the following advantages: the present invention can control the rotation of the middle push rod motor and the deceleration brake motor through the controller, thereby changing the posture of the left water tank and the right water tank, and then changing the gap between the left water tank and the right water tank and the inner wall of the support tube, thereby adjusting the smoke discharge volume and heat absorption effect in the opposite direction, and when the posture of the left water tank and the right water tank changes, the left inclination angle sensor and the right inclination angle sensor can automatically control the left push rod motor and the right push rod motor to move through the controller, and the left push rod motor and the right push rod motor can also be controlled by the controller, thereby changing the posture of each heat-conducting fin plate, and then changing the gap between each heat-conducting fin plate, thereby again adjusting the smoke discharge volume and heat absorption effect in the opposite direction, and then adjusting the left water tank, the right water tank and the heat-conducting fin plate as needed, so as to achieve a balance between the flow rate of the discharged smoke and the heat utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the present invention.
[0011] Figure 2 It is a schematic diagram of the front part of the transmission tube of the present invention after the front part is cut away.
[0012] Figure 3 It is a schematic diagram of the rear portion of the transmission cylinder of the present invention after being cut away.
[0013] Figure 4 It is a front sectional schematic diagram of the left water tank and the right water tank of the present invention.
[0014] In the figure: 1, support cylinder, 2, support plate, 3, hinge seat, 4, lower support shaft, 5, right water tank, 6, left water tank, 7, left water pipe, 8, right water pipe, 9, limit ring, 10, short heat pipe, 11, long heat pipe, 12, heat conducting fin plate, 13, left gear ring, 14, right gear ring, 15, upper support shaft, 16, water inlet pipe, 17, drain pipe, 18, adjustment part, 19, transmission part, 20, left guide rail, 21, Right guide rail, 22. Left inclination angle sensor, 23. Left push rod motor, 24. Right inclination angle sensor, 25. Right push rod motor, 26. Left rack, 27. Right rack, 28. Controller, 29. Transmission cylinder, 30. Upper arc groove, 31. Lower arc groove, 32. Middle push rod motor, 33. Large gear ring, 34. Transmission seat, 35. Transmission arm, 36. Through hole, 37. Support seat, 38. Deceleration brake motor, 39. Gear. DETAILED DESCRIPTION
[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0016] like Figure 1-Figure 4As shown, a high-efficiency heat exchanger for a boiler includes a support cylinder 1, a support plate 2, a hinge seat 3, a lower support shaft 4, a right water tank 5, a left water tank 6, a left water pipe 7, a right water pipe 8, a limit ring 9, a short heat pipe 10, a long heat pipe 11, a heat conducting fin plate 12, a left gear ring 13, a right gear ring 14, an upper support shaft 15, a water inlet pipe 16, a drain pipe 17, an adjustment part 18, and a transmission part 19. The front and rear parts of the support cylinder 1 are each rotatably connected to a horizontal support plate 2, and the two support plates 2 The bottom ends are respectively fixed with vertical hinge seats 3, and the two hinge seats 3 are connected to a horizontal lower support shaft 4 for rotation. The lower support shaft 4 is radially fixed with a vertical right water tank 5, and a vertical left water tank 6 is hinged in the middle, so as to mainly support the left water tank 6 and the right water tank 5. The left water tank 6 is sequentially provided with a plurality of horizontal left water pipes 7 from top to bottom, and the right water tank 5 is sequentially provided with a plurality of horizontal right water pipes 8 from top to bottom. The outer walls of the middle of the left water pipe 7 and the right water pipe 8 are respectively The left water pipe 7 is coaxially fixed with a limit ring 9, and the front and rear parts of the left water pipe 7 are coaxially connected with a horizontal short heat-conducting pipe 10, and the front and rear parts of the right water pipe 8 are coaxially connected with a horizontal long heat-conducting pipe 11. The short heat-conducting pipe 10 and the long heat-conducting pipe 11 are radially fixed with axial heat-conducting fins 12 at the upper and lower ends of the middle part. The short heat-conducting pipe 10, the long heat-conducting pipe 11 and the heat-conducting fins 12 are used to absorb the heat of the smoke and conduct the heat to the left input pipe 7 and the right input pipe 8. The tube 10 is coaxially fixed with a left gear ring 13, and the long heat-conducting tube 11 is coaxially fixed with a right gear ring 14. Horizontal upper support shafts 15 are respectively fixed to the front and rear ends of the left water tank 6 and the right water tank 5. The front ends of the left water tank 6 and the right water tank 5 are respectively provided with horizontal water inlet pipes 16, and the rear ends of the left water tank 6 and the right water tank 5 are respectively provided with horizontal drain pipes 17. The left water tank 6 and the right water tank 5 are jointly installed with an adjusting part 18, and the support plate 2 and the support cylinder 1 are jointly installed with a transmission part 19.
[0017] On the basis of the above technical scheme, the adjusting part 18 includes a left guide rail 20, a right guide rail 21, a left inclination angle sensor 22, a left push rod motor 23, a right inclination angle sensor 24, a right push rod motor 25, a left rack 26, a right rack 27, and a controller 28. The front and rear parts of the left water tank 6 are each fixed with a vertical left guide rail 20, and the left guide rail 20 is used to guide the sliding direction of the left rack 26. The front and rear parts of the right water tank 5 are each fixed with a vertical right guide rail 21, and the right guide rail 21 is used to guide the sliding direction of the right rack 27. The inner wall of the left water tank 6 is fixed with a left inclination angle sensor 22, and two vertical left push rod motors 23 are fixed with the inner wall. The inner wall of the right water tank 5 is fixed with a right inclination angle sensor 24, and two vertical right push rod motors 25 are fixed with the inner wall. The bottom ends of the push rods of the two left push rod motors 23 are respectively fixed with vertical left racks 26, and Its push rod is sealed and slidably connected to the upper part of the left water tank 6, and the bottom ends of the push rods of the two right push rod motors 25 are respectively fixed with vertical right racks 27, and its push rods are sealed and slidably connected to the upper part of the right water tank 5. The two left racks 26 are respectively meshed with the left gear rings 13 of the short heat-conducting pipes 10 at the front and rear parts of each left water pipe 7, and are respectively slidably connected to the two left guide rails 20. The left rack 26 is located on the right part of the left gear ring 13, and the two right racks 27 are meshed with the right gear rings 14 of the long heat-conducting pipes 11 at the front and rear parts of each right water pipe 8, and are respectively slidably connected to the two right guide rails 21. The right rack 27 is located on the left part of the right gear ring 14. A horizontal controller 28 is fixed to the right end of the support tube 1. The number of the left water pipes 7 and the right water pipes 8 is the same, and the left projections of the left water pipes 7 and the right water pipes 8 are staggered. Each left water pipe 7 is located at the upper left of each right water pipe 8.
[0018] On the basis of the above technical scheme, the transmission part 19 includes a transmission cylinder 29, an upper arc groove 30, a lower arc groove 31, a middle push rod motor 32, a large gear ring 33, a transmission seat 34, a transmission arm 35, a lead hole 36, a support seat 37, a deceleration brake motor 38, and a gear 39. The ends of the two support plates 2 facing each other are coaxially fixed with the transmission cylinder 29, and the two support plates 2 are sequentially provided with an upper arc groove 30 and a lower arc groove 31 penetrating from top to bottom. The tops of the two transmission cylinders 29 are respectively fixed with vertical middle push rod motors 32, and the outer walls are respectively coaxially fixed with large gear rings 33. The push rods of the two middle push rod motors 32 are sealed and slidably connected to the transmission cylinder 29, and the bottom ends of the push rods are respectively fixed with vertical transmission seats 34. The two transmission seats 34 are respectively hinged with transmission arms 35. The movable arms 35 are hinged to the upper support shafts 15 respectively, and two horizontal through holes 36 are respectively penetrated at the bottom of the two transmission cylinders 29. The through holes 36 are used for external hoses to pass through and connect with the water inlet pipe 16 or the drain pipe 17. Horizontal support seats 37 are respectively fixed to the front and rear ends of the support cylinder 1, and horizontal reduction brake motors 38 are respectively fixed to the tops of the two support seats 37. Gears 39 are coaxially fixed to the rotating shafts of the two reduction brake motors 38, and the two gears 39 are meshed with two large gear rings 33. The water inlet pipe 16 and the drain pipe 17 are coaxial, and the two water inlet pipes 16 and the two drain pipes 17 are respectively slidably connected to the two lower arc grooves 31, and each of the upper support shafts 15 is respectively slidably connected to the two upper arc grooves 30, thereby providing auxiliary support to the left water tank 6 and the right water tank 5.
[0019] On the basis of the above technical scheme, the left inclination angle sensor 22, the left push rod motor 23, the right inclination angle sensor 24, the right push rod motor 25, the controller 28, the middle push rod motor 32 and the deceleration brake motor 38 are electrically connected. The left inclination angle sensor 22, the left push rod motor 23, the right inclination angle sensor 24 and the right push rod motor 25 are all resistant to high temperature and waterproof, and are common devices in the prior art. The controller 28 is externally connected to a power supply. When the left push rod motor 23 is energized to extend and retract the push rod, the short heat pipe 10 can be driven to rotate around the left water pipe 7 as the axis through the left rack 26 and the left gear ring 13. When the right push rod motor 25 is energized to extend and retract the push rod, the long heat pipe 11 can be driven to rotate around the right water pipe 8 as the axis through the right rack 27 and the right gear ring 14. The two When the push rod motor 32 is energized to extend and retract the push rod, the transmission seat 34, the transmission arm 35 and the upper support shaft 15 can make the left water tank 6 and the right water tank 5 open and contract with the lower support shaft 4 as the axis. When the left water tank 6 and the right water tank 5 are opened and contracted with the lower support shaft 4 as the axis, the water inlet pipe 16 and the drain pipe 17 can slide along the lower arc groove 31. When the left water tank 6 and the right water tank 5 are opened and contracted with the lower support shaft 4 as the axis, the upper support shaft 15 can slide along the upper arc groove 30. The two water inlet pipes 16 are connected to the external water supply device through an external hose, and the two drain pipes 17 are connected to the external water use device through an external hose. The external hose has the characteristics of high temperature resistance and easy bending, which is an existing known technology.
[0020] The working principle of the present invention is as follows: when in use, the support tube 1 is installed in the chimney or at the top of the chimney, etc., to ensure that the support tube 1 is in a vertical state, so that the smoke with heat can pass from the bottom to the top of the support tube 1, and the external water supply device continuously supplies water to the water inlet pipe 16, so that the left water tank 6 and the right water tank 5 are filled with water, and after the water enters the water inlet pipe 16, it flows through the left water tank 6 and the right water tank 5 and then flows from the drain pipe 17 into the water use device.
[0021] At the initial stage, that is, when only the smoke is required to be discharged quickly without making full use of the heat in the smoke (generally speaking, it corresponds to the rapid combustion of fuel in the combustion chamber of the boiler), the left water tank 6 and the right water tank 5 are both in a vertical state, and the push rod of the middle push rod motor 32 is in a retracted state. At this time, the space between the left water tank 6 and the right water tank 5 and the left and right ends of the inner wall of the support tube 1 is in a maximum state, the left water pipe 7 and the right water pipe 8 are arranged linearly in the up and down directions, the heat conducting fin 12 is in a vertical state, and the push rods of the left push rod motor 23 and the right push rod motor 25 are in the middle position of their strokes. At this time, the smoke can quickly pass through the gap between the left water tank 6 and the right water tank 5 and the inner wall of the support tube 1, and because the flow direction of the smoke is from bottom to top, The heat-conducting fin 12 is in a vertical state, so the heat-conducting fin 12 has less obstruction to the flow of smoke, so the heat absorption is less. When it is necessary to slightly increase the heat utilization rate and slightly reduce the exhaust flow rate of smoke, in the initial state, the controller 28 controls the left push rod motor 23 and the right push rod motor 25 to retract the push rods, thereby gradually changing the posture of the heat-conducting fin 12, so that the heat-conducting fin 12 gradually tends to a horizontal state, thereby improving the heat-conducting fin 12. The obstruction effect of the smoke, thereby reducing the exhaust flow rate of smoke, and then increasing the smoke retention time (that is, increasing the absorption time of the heat of the same batch of smoke), thereby improving the heat utilization efficiency. When it is necessary to restore the initial state, the left push rod motor 23 and the right push rod motor 25 can be operated in the opposite way.
[0022] In the initial state, when it is necessary to further improve the utilization rate of heat and further reduce the exhaust flow rate of smoke, the first method is to control the two middle push rod motors 32 to extend the push rods, so as to use the transmission seat 34 and the transmission arm 35 to drive the two upper support shafts 15 to move away from each other along the upper arc groove 30, and then make the left water tank 6 and the right water tank 5 spread out with the lower support shaft 4 as the axis. When the middle push rod motor 32 fully extends the push rod, the upper left part of the left water tank 6 just contacts with the left end of the inner wall of the support tube 1, and the upper right part of the right water tank 5 just contacts with the right end of the inner wall of the support tube 1. At this time, the left water tank 6 and the right water tank 5 are in contact with the support tube 1. The gap between the inner walls of the tube 1 is greatly reduced, and as the postures of the left water tank 6 and the right water tank 5 change, the left tilt angle sensor 22 senses this change and automatically controls the left push rod motor 23 to extend the push rod through the controller 28, and the right tilt angle sensor 24 senses this change and automatically controls the right push rod motor 25 to extend the push rod through the controller 28, and then each heat-conducting fin 12 can be automatically in a vertical state. Since the gap between the left water tank 6 and the right water tank 5 and the inner wall of the support tube 1 is greatly reduced at this time, the flow rate of smoke exhaust will be greatly reduced, thereby improving the effect of blocking smoke, thereby improving smoke retention. time, thereby improving the utilization efficiency of heat. When it is necessary to slightly increase the utilization rate of heat and slightly reduce the exhaust flow rate of smoke on this basis, the controller 28 controls the left push rod motor 23 and the right push rod motor 25 to retract the push rods, thereby gradually changing the posture of the heat-conducting fin 12, so that the heat-conducting fin 12 gradually tends to a horizontal state, thereby improving the heat-conducting fin 12. The hindering effect of the smoke, thereby reducing the exhaust flow rate of smoke, and then increasing the retention time of smoke, thereby improving the utilization efficiency of heat. When it is necessary to further increase the utilization rate of heat and further reduce the exhaust flow rate of smoke, When discharging flow, the controller 28 controls the left push rod motor 23 and the right push rod motor 25 to further retract the push rods, so that the heat-conducting fins 12 of the short heat-conducting tube 10 are coplanar, and the heat-conducting fins 12 of the long heat-conducting tube 11 are coplanar. At this time, the gap between the heat-conducting fins 12 is minimized, thereby increasing the blocking effect of the heat-conducting fins 12 on smoke, thereby reducing the discharge flow of smoke, and then increasing the length of time the smoke stays, thereby further improving the utilization efficiency of heat. When it is necessary to restore the initial state, the left push rod motor 23, the right push rod motor 25 and the middle push rod motor 32 can be operated in the opposite manner.
[0023] In the initial state, when it is necessary to further improve the utilization rate of heat and further reduce the exhaust flow rate of smoke, the second method is to control the deceleration brake motor 38 to rotate, so as to utilize the meshing of the gear 39 and the large gear ring 33 to realize the counterclockwise rotation of the support plate 2 until the left water tank 6 and the right water tank 5 are in a horizontal state. At this time, the top projections of the right water pipe 8 and the left water pipe 7 are intertwined, and the upper parts of the left water tank 6 and the right water tank 5 are in contact with the left end of the inner wall of the support tube 1. The left inclination angle sensor 22 senses this change and automatically controls the left push rod motor 23 to extend the push rod through the controller 28, and the right inclination angle sensor 24 senses this change and automatically controls the right push rod motor 25 to retract the push rod through the controller 28, so that each heat-conducting fin plate 12 is automatically in a vertical state, so that the smoke passes through the left water pipe 7 first and then the right water pipe 8, thereby improving the heat utilization. When it is necessary to further improve the utilization rate of heat and further reduce the exhaust flow rate of smoke, the controller 28 controls the right push rod motor 25 to extend the push rod, so that the heat-conducting fins 12 of each long heat-conducting tube 11 are coplanar (that is, the heat-conducting fins 12 of each long heat-conducting tube 11 are in a horizontal state at this time). At this time, the gap between the heat-conducting fins 12 of each long heat-conducting tube 11 is minimized, thereby improving the barrier effect of the heat-conducting fins 12 of each long heat-conducting tube 11 on smoke, thereby reducing the exhaust flow rate of smoke, so that the smoke stays below the heat-conducting fins 12 of the long heat-conducting tube 11 as much as possible, and then heat is conducted to the left water pipe 7 and the right water pipe 8 through the short heat-conducting tube 10 and the long heat-conducting tube 11, thereby improving the utilization efficiency of heat. When it is necessary to restore the initial state, the left push rod motor 23, the right push rod motor 25 and the deceleration brake motor 38 can be operated in the opposite manner.
[0024] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.
Claims
1. A high-efficiency heat exchanger for a boiler, comprising a support tube (1), a support plate (2), a hinge seat (3), a lower support shaft (4), a right water tank (5), a left water tank (6), a left water pipe (7), a right water pipe (8), a stop ring (9), a short heat conducting pipe (10), a long heat conducting pipe (11), a heat conducting fin plate (12), a left gear ring (13), a right gear ring (14), an upper support shaft (15), a water inlet pipe (16), a drain pipe (17), an adjusting part (18), and a transmission part (19), characterized in that: The front and rear parts of the support cylinder (1) are rotatably connected to a horizontal support plate (2), the bottom ends of the two support plates (2) are respectively fixed with vertical hinge seats (3), the two hinge seats (3) are jointly rotatably connected to a horizontal lower support shaft (4), the lower support shaft (4) is radially fixed with a vertical right water tank (5), and the middle part is hinged with a vertical left water tank (6), the left water tank (6) is sequentially provided with a plurality of horizontal left water pipes (7) from top to bottom, the right water tank (5) is sequentially provided with a plurality of horizontal right water pipes (8) from top to bottom, the outer walls of the middle parts of the left water pipe (7) and the right water pipe (8) are respectively coaxially fixed with a limiting ring (9), the front and rear parts of the left water pipe (7) are each coaxially rotatably connected to a horizontal short heat conduction pipe (10), the front and rear parts of the right water pipe (8) are each coaxially A horizontal long heat-conducting pipe (11) is rotatably connected, and axial heat-conducting fins (12) are radially fixed at the upper and lower ends of the middle of the short heat-conducting pipe (10) and the long heat-conducting pipe (11). The short heat-conducting pipe (10) is coaxially fixed with a left gear ring (13), and the long heat-conducting pipe (11) is coaxially fixed with a right gear ring (14). The front and rear ends of the left water tank (6) and the right water tank (5) are respectively fixed with horizontal upper support shafts (15). The front ends of the left water tank (6) and the right water tank (5) are respectively provided with horizontal water inlet pipes (16), and the rear ends of the left water tank (6) and the right water tank (5) are respectively provided with horizontal drainage pipes (17). The left water tank (6) and the right water tank (5) are jointly installed with an adjusting part (18), and the support plate (2) and the support cylinder (1) are jointly installed with a transmission part (19);The regulating part (18) comprises a left guide rail (20), a right guide rail (21), a left tilt angle sensor (22), a left push rod motor (23), a right tilt angle sensor (24), a right push rod motor (25), a left rack (26), a right rack (27), and a controller (28). The front and rear parts of the left water tank (6) are each fixed with a vertical left guide rail (20). The front and rear parts of the right water tank (5) are each fixed with a vertical right guide rail (21). The inner wall of the left water tank (6) is fixed with a left tilt angle sensor (22), and two vertical left push rod motors (23) are fixed with the inner wall. The inner wall of the right water tank (5) is fixed with a right tilt angle sensor (24), and two vertical right push rod motors (25) are fixed with the inner wall. The bottom ends of the push rods of the two left push rod motors (23) are respectively fixed with vertical left racks (26). The push rod is sealed and slidably connected to the upper part of the left water tank (6); the push rod bottom ends of the two right push rod motors (25) are respectively fixed with vertical right racks (27), and the push rods are sealed and slidably connected to the upper part of the right water tank (5); the two left racks (26) are respectively meshed with the left gear rings (13) of the short heat-conducting pipes (10) at the front and rear parts of each left water pipe (7), and are respectively slidably connected to the two left guide rails (20); the two right racks (27) are meshed with the right gear rings (14) of the long heat-conducting pipes (11) at the front and rear parts of each right water pipe (8), and are respectively slidably connected to the two right guide rails (21); a horizontal controller (28) is fixed to the right end of the support tube (1); the number of the left water pipes (7) and the right water pipes (8) is the same, and the left projections of the left water pipes (7) and the right water pipes (8) are staggered;The transmission part (19) comprises a transmission cylinder (29), an upper arc groove (30), a lower arc groove (31), a middle push rod motor (32), a large gear ring (33), a transmission seat (34), a transmission arm (35), a lead hole (36), a support seat (37), a deceleration brake motor (38), and a gear (39). The ends of the two support plates (2) facing each other are coaxially fixed with the transmission cylinder (29). The two support plates (2) are sequentially provided with an upper arc groove (30) and a lower arc groove (31) penetrating from top to bottom. The top ends of the two transmission cylinders (29) are respectively fixed with a vertical middle push rod motor (32), and the outer walls are respectively coaxially fixed with a large gear ring (33). The push rods of the two middle push rod motors (32) are sealed and slidably connected to the transmission cylinder (29), and the bottom ends of the push rods are respectively fixed with a vertical transmission seat (34). The two transmission seats (34) are respectively hinged with a transmission arm (35), and each of the transmission arms (35) is respectively hinged with the upper support shaft (15). The bottom of the two transmission cylinders (29) is respectively penetrated with two horizontal through holes (36). The front and rear ends of the support cylinder (1) are respectively fixed with a horizontal support seat (37), and the top of the two support seats (37) is respectively fixed with a horizontal reduction brake motor (38). The rotating shafts of the two reduction brake motors (38) are respectively coaxially fixed with a gear (39), and the two gears (39) are meshed with two large gear rings (33). The water inlet pipe (16) and the drainage pipe (17) are coaxial, and the two water inlet pipes (16) and the two drainage pipes (17) are respectively slidably connected with the two lower arc grooves (31), and each of the upper support shafts (15) is respectively slidably connected with the two upper arc grooves (30);The left inclination sensor (22), the left push rod motor (23), the right inclination sensor (24), the right push rod motor (25), the controller (28), the middle push rod motor (32) and the deceleration brake motor (38) are electrically connected. The controller (28) is externally connected to a power supply. When the left push rod motor (23) is energized to extend and retract the push rod, the left rack (26) and the left gear ring (13) can drive the short heat conducting pipe (10) to rotate around the left water pipe (7) as the axis. When the right push rod motor (25) is energized to extend and retract the push rod, the right rack (27) and the right gear ring (14) can drive the long heat conducting pipe (11) to rotate around the right water pipe (8) as the axis. When the middle push rod motor (32) is energized to extend and retract the push rod, the transmission seat ( 34), the transmission arm (35) and the upper support shaft (15) can make the left water tank (6) and the right water tank (5) open and contract with the lower support shaft (4) as the axis, and the left water tank (6) and the right water tank (5) can make the water inlet pipe (16) and the drainage pipe (17) slide along the lower arc groove (31) when they are opened and contracted with the lower support shaft (4) as the axis, and the left water tank (6) and the right water tank (5) can make the upper support shaft (15) slide along the upper arc groove (30) when they are opened and contracted with the lower support shaft (4) as the axis, and the two water inlet pipes (16) are connected to the external water supply device through the external hose, and the two drainage pipes (17) are connected to the external water use device through the external hose. ;