Condensation vertical type tail end smoke exhaust pipe

Abstract

The invention relates to the technical field of smoke exhaust pipe devices, in particular to a condensation vertical type tail end smoke exhaust pipe which comprises an inner pipe and an outer pipe which are coaxially arranged, an air inlet is formed between the top end of the outer pipe and the outer circumferential face of the inner pipe, a rotating hood is arranged at the top end of the outer pipe, and a movable part in transmission connection with the rotating hood is arranged at the top of an inner cavity of the outer pipe. The inner pipe and the outer pipe are coaxially arranged, the rotating hood is arranged at the top end of the inner pipe, and when wind power is too large, the rotating speed of the rotating hood is larger than a preset value, so that the movable part installed in the inner pipe moves, the air passing channel is reduced, and the air passing channel is prevented from being blocked. Therefore, the flowing speed of the smoke in the smoke passing channel is increased, the capacity of the smoke for resisting backward flowing of external strong wind is enhanced, meanwhile, heat and harmful substances in the smoke can be taken away more quickly due to the fact that the flowing speed is increased, and the smoke discharging efficiency and the purifying effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of smoke exhaust pipe devices, and in particular to a condensing vertical terminal smoke exhaust pipe. Background Art

[0002] The smoke exhaust pipe assembly is generally connected to a boiler such as a wall-mounted boiler through an elbow so as to be used for smoke exhaust and air intake of the boiler equipment; the smoke exhaust pipe assembly can be divided into condensing type and non-condensing type according to its application environment. The condensing smoke exhaust pipe assembly is generally arranged upward at an angle during specific installation. When the traditional condensing smoke exhaust pipe assembly is in use, rainwater will flow into the boiler along the pipe wall of the air intake pipe, thereby affecting the use of the boiler.

[0003] In the prior art, for example, a Chinese utility model patent (publication number CN218095990U) discloses a condensing vertical terminal smoke exhaust pipe, comprising an air inlet pipe, a smoke exhaust pipe, a smoke cap assembly and a water vapor separation device. The smoke cap assembly is sleeved with the outlet end of the smoke exhaust pipe, the smoke cap assembly is provided with a smoke exhaust hole and an air inlet, the smoke exhaust hole is connected with the smoke exhaust pipe, the water vapor separation device is connected between the smoke cap assembly and the inlet end of the air inlet pipe, the water vapor separation device is provided with an air cavity, the air inlet is connected with the air inlet pipe through the air cavity, a spiral blade is provided in the air cavity, a water collecting trough is provided at one end of the spiral blade close to the air inlet pipe, the water collecting trough is provided with a drainage notch, and the water vapor separation device is provided with a drainage hole corresponding to the drainage notch of the water collecting trough.

[0004] The exhaust pipe uses a water collection trough at the end of the spiral blade to block rainwater from flowing into the boiler and collect rainwater, which is then discharged through the drainage hole. When the rainfall is heavy, rainwater will not flow directly into the boiler along the pipe wall, ensuring the normal use of the boiler. However, when the wind is strong, the strong wind will flow into the exhaust pipe through the exhaust hole, resulting in poor exhaust of the exhaust pipe. The backflow of smoke contains acidic components, which can easily corrode important internal components of the condensing furnace. In addition, rainwater will also enter the exhaust pipe through the exhaust hole, thus affecting the use of the boiler. Summary of the invention

[0005] In response to the above-mentioned problem, a condensing vertical terminal smoke exhaust pipe is provided. The inner pipe and the outer pipe are coaxially arranged and a rotating wind hood is provided at the top of the inner pipe. When the wind force is too strong, the rotation speed of the rotating wind hood is greater than a predetermined value, so that the movable parts installed in the inner pipe move and reduce the air passage, thereby increasing the flow rate of the smoke in the air passage and avoiding the backflow of smoke. This solves the problem of the existing smoke exhaust pipe being prone to backflow of smoke in windy weather.

[0006] In order to solve the problems of the prior art, the present invention provides a condensing vertical terminal smoke exhaust pipe, comprising an inner tube and an outer tube arranged coaxially, an air inlet is formed between the top end of the outer tube and the outer circumferential surface of the inner tube, a rotating wind hood is arranged at the top end of the outer tube, a movable part which is transmission-connected to the rotating wind hood is arranged at the top of the inner cavity of the outer tube, an air passage with adjustable diameter is formed between the movable part and the inner wall of the outer tube, when the rotation speed of the rotating wind hood exceeds a predetermined value, the diameter of the air passage gradually decreases during the downward movement of the movable part.

[0007] Preferably, a transmission shaft extending downward and coaxial therewith is provided in the rotating hood, the movable part is slidably arranged in the inner tube along the longitudinal direction, the movable part has an adjustment cavity coaxial with the transmission shaft, the adjustment cavity has a conical inner wall, and a centrifugal abutment assembly is provided on the transmission shaft, the centrifugal abutment assembly has a centrifugal rod that can be extended horizontally when the rotation speed of the transmission shaft exceeds a predetermined value, and the outer end of the centrifugal rod abuts against the conical inner wall of the adjustment cavity.

[0008] Preferably, an elastic component is provided between the movable member and the inner tube, and the movable member needs to overcome the elastic force of the elastic component when moving in the longitudinal direction.

[0009] Preferably, an expansion cylinder is provided at the top end of the inner tube, and the rotating wind hood is rotatably provided on the expansion cylinder. A lower conical surface is provided at the bottom end of the inner cavity of the expansion cylinder, and the outer side of the movable part has an upper conical surface coaxial with the lower conical surface, and an air passage is formed between the upper conical surface and the lower conical surface.

[0010] Preferably, the centrifugal abutment assembly also includes a rotating disk coaxially arranged on the transmission shaft, one end of the centrifugal rod is rotatably connected to the end surface of the rotating disk, and when the rotation speed of the rotating disk exceeds a predetermined value, the end of the centrifugal rod abuts against the conical inner wall of the regulating cavity.

[0011] Preferably, the centrifugal abutment assembly also includes a tension element arranged on the rotating disk, and the other end of the centrifugal rod is connected to the rotating disk through the tension element. When the rotation speed of the rotating disk exceeds a predetermined value, the centrifugal rod overcomes the tension of the tension element and deviates from the axis of the rotating disk.

[0012] Preferably, the elastic component includes a height adjustment member arranged on the inner tube, a positioning rod slidingly passing through the height adjustment member in the longitudinal direction, and an elastic reset element sleeved on the positioning rod, the height adjustment member has an escape channel for smoke to pass through, the top end of the positioning rod is fixedly connected to the bottom end of the movable member, and the elastic reset element is located between the movable component and the adjustment member.

[0013] Preferably, a bracket is provided in the inner tube, the transmission shaft is rotatably connected to the bracket, the lower part of the transmission shaft has a drainage cavity extending along its circumference, a collecting bowl is provided at the top of the movable component, a water inlet hole connected to the collecting bowl is provided at the upper part of the drainage cavity, a lifting seat transmission-connected to the bottom end of the transmission shaft is provided at the bottom of the bracket, a one-way valve is provided in the lifting seat, the one-way valve extends into the drainage cavity and is sealingly and slidably connected to the drainage cavity, a drainage pipe communicating with the one-way valve and penetrating the inner tube and the outer tube is provided at the bottom of the one-way valve, and when the transmission shaft rotates, the lifting seat lifts and lowers reciprocatingly in the longitudinal direction.

[0014] Preferably, a guide rod extending downward is provided at the bottom end of the bracket, and the guide rod slides longitudinally and penetrates the lifting seat, an elastic compression element is provided between the bottom end of the guide rod and the lifting seat, a driving ring coaxial with the lifting seat is provided at the top end of the lifting seat, a V-shaped groove distributed along its circumference is provided at the top end of the driving ring, and a driving column extending radially is provided at the bottom end of the outer circumferential surface of the transmission shaft, and the driving column abuts against the top end of the driving ring.

[0015] Preferably, a rain shield located at the top of the air inlet is also provided at the top of the outer circumferential surface of the inner tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present application arranges the inner tube and the outer tube coaxially and arranges a rotating hood at the top of the inner tube. When the wind force is too strong, the rotation speed of the rotating hood is greater than a predetermined value, so that the movable parts installed in the inner tube move and reduce the air passage, thereby increasing the flow rate of the smoke in the air passage, thereby enhancing the ability of the smoke to resist the backflow of strong external wind. At the same time, the increase in the flow rate also helps to take away the heat and harmful substances in the smoke more quickly, thereby improving the smoke exhaust efficiency and purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a condensing vertical end exhaust pipe.

[0018] Figure 2 It is a three-dimensional cross-sectional view of a condensing vertical end exhaust pipe.

[0019] Figure 3 It is a schematic diagram of the air intake and exhaust of a condensing vertical end exhaust pipe.

[0020] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0021] Figure 5 yes Figure 3 A partial enlarged view of point C.

[0022] Figure 6 yes Figure 3 A partial enlarged view of point B.

[0023] Figure 7 The present invention is a stereoscopic diagram of a centrifugal abutment assembly and movable parts in a condensing vertical end exhaust pipe.

[0024] Figure 8 The diagram is a top view of a centrifugal abutment assembly in a condensing vertical end exhaust pipe.

[0025] Fig. 9 It is a three-dimensional diagram of a lifting seat and a transmission shaft in a condensing vertical terminal exhaust pipe.

[0026] The numbers in the figure are: 1. inner tube; 11. expansion tube; 2. outer tube; 3. air inlet; 31. rain cover; 4. rotating hood; 41. transmission shaft; 411. drainage chamber; 412. water inlet hole; 5. movable part; 51. adjustment chamber; 6. air passage; 7. centrifugal abutment assembly; 71. centrifugal rod; 72. rotating disk; 73. tension element; 8. elastic assembly; 81. avoidance channel; 82. adjusting ring; 83. external threaded tube; 84. positioning rod; 85. elastic reset element; 91. bracket; 911. guide rod; 92. collecting bowl; 93. lifting seat; 94. one-way valve; 95. drainage pipe; 96. elastic compression element; 97. driving ring; 971. V-groove; 98. driving column. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides: A condensing vertical terminal smoke exhaust pipe comprises an inner tube 1 and an outer tube 2 which are coaxially arranged, an air inlet 3 is formed between the top of the outer tube 2 and the outer circumferential surface of the inner tube 1, a rotating wind hood 4 is arranged at the top of the outer tube 2, a movable part 5 which is transmission-connected to the rotating wind hood 4 is arranged at the top of the inner cavity of the outer tube 2, an air passage 6 with adjustable caliber is formed between the movable part 5 and the inner wall of the outer tube 2, when the rotation speed of the rotating wind hood 4 exceeds a predetermined value, the caliber of the air passage 6 gradually decreases during the downward movement of the movable part 5.

[0029] The condensing vertical terminal exhaust pipe adopts a coaxial inner pipe 1 and outer pipe 2. This design not only optimizes space utilization, but also enhances the overall performance of the system. An air inlet 3 is constructed between the top of the outer pipe 2 and the outer circumference of the inner pipe 1. This design allows external air to smoothly enter the inner pipe 1 under certain conditions, mix with the internal smoke or exchange heat, which helps to improve the condensation effect during the exhaust process and reduce the emission of harmful substances.

[0030] A rotating hood 4 is installed at the top of the outer tube 2. The rotating hood 4 cannot sense the change of external wind force through its own rotational movement. A reliable transmission connection is achieved between the rotating hood 4 and the movable part 5. This design ensures that when the external wind force increases, the rotation speed of the hood can respond quickly and be transmitted to the movable part 5, triggering the subsequent adjustment mechanism.

[0031] As a key component for adjusting the diameter of the air passage 6, the design of the movable part 5 fully considers the stability of the structure and the flexibility of adjustment. When the rotation speed of the rotating hood 4 exceeds the preset threshold, the transmission mechanism will drive the movable part 5 to move downward along the guide rail on the inner wall of the outer tube 2. During this movement, the gap between the movable part 5 and the inner wall of the outer tube 2 gradually decreases, thereby realizing the dynamic adjustment of the diameter of the air passage 6. This adjustment mechanism ensures that the smoke exhaust pipe can maintain a better smoke exhaust efficiency and wind resistance under different wind conditions.

[0032] As the diameter of the air passage 6 gradually decreases, the flue gas velocity in the inner tube 1 will increase accordingly. According to the principles of fluid mechanics, the increase in flow velocity will increase the dynamic pressure and turbulence of the flue gas, which will help to better resist the backflow of strong external wind. At the same time, the increase in flow velocity will also help to accelerate the condensation process of water vapor in the flue gas, further reduce the temperature and humidity of the flue gas, and reduce pollution to the environment.

[0033] In summary, this condensing vertical terminal exhaust pipe achieves precise control of the exhaust process through an innovative double-layer structure and intelligent adjustment mechanism. It not only improves the exhaust efficiency and purification effect, but also significantly enhances the stability and reliability of the system in windy weather.

[0034] This embodiment ensures smooth and efficient airflow path by coaxially installing the inner tube 1 and the outer tube 2. The inner tube 1, as the core channel, is responsible for guiding the flue gas to flow from the source to the discharge port, while the outer tube 2 and the inner tube 1 form a channel for air to enter the boiler, which can also provide a certain insulation effect for the inner tube 1 and reduce heat loss.

[0035] A rotating hood 4 is designed and installed at the top of the inner tube 1. The rotating hood 4 is made of a light but strong material, has good aerodynamic characteristics, and can automatically adjust its rotation speed as the wind changes. When encountering strong winds and the wind increases to a certain level, the rotation speed of the rotating hood 4 will quickly exceed the preset threshold. This change immediately triggers a series of mechanical linkage reactions, pushing the movable part 5 installed in the inner tube 1 to move along a predetermined track.

[0036] As the movable part 5 moves, the originally spacious air passage 6 is gradually reduced. This dynamic adjustment process effectively increases the flow rate of the smoke in the passage. According to Bernoulli's principle, the increase in flow rate means the increase in dynamic pressure, thereby enhancing the ability of smoke to resist the backflow of strong external wind. At the same time, the increase in flow rate also helps to take away the heat and harmful substances in the smoke faster, improving the smoke exhaust efficiency and purification effect.

[0037] like Figure 4 As shown, a transmission shaft 41 extending downward and coaxial therewith is provided in the rotating hood 4, a movable part 5 is slidably arranged in the inner tube 1 along the longitudinal direction, the movable part 5 has an adjustment cavity 51 coaxial with the transmission shaft 41, the adjustment cavity 51 has a conical inner wall, a centrifugal abutment assembly 7 is provided on the transmission shaft 41, the centrifugal abutment assembly 7 has a centrifugal rod 71 which can be horizontally extended when the rotation speed of the transmission shaft 41 exceeds a predetermined value, and the outer end of the centrifugal rod 71 abuts against the conical inner wall of the adjustment cavity 51.

[0038] A transmission shaft 41 extending downward and coaxial therewith is arranged inside the rotating hood 4. This transmission shaft 41 not only plays the role of connecting the hood and the movable part 5, but also carries the important task of transmitting the rotating power and converting the motion form.

[0039] The movable part 5 is an actuator for adjusting the diameter of the air passage 6 and is slidably disposed in the inner tube 1 along the longitudinal direction. In order to ensure that the movable part 5 can accurately respond to the command of the transmission shaft 41 and realize a reliable adjustment function, an adjustment chamber 51 coaxial with the transmission shaft 41 is designed inside the movable part 5. This adjustment chamber 51 not only provides the necessary support and guidance for the transmission shaft 41, but also realizes precise control of the diameter of the air passage 6 through its unique structural characteristics.

[0040] The special feature of the regulating chamber 51 is the design of its tapered inner wall. This tapered structure enables the caliber of the regulating chamber 51 to gradually change with the movement of the movable member 5. When the movable member 5 moves upward or downward, the regulating chamber 51 inside it interacts with the centrifugal abutment assembly 7 on the transmission shaft 41, thereby changing the caliber of the air passage 6.

[0041] The centrifugal abutment assembly 7 is an important component of the transmission shaft 41, and includes centrifugal rods 71 ​​that can automatically extend and retract as the transmission shaft 41 rotates. These centrifugal rods 71 ​​are designed to be able to extend horizontally when the rotation speed of the transmission shaft 41 exceeds a predetermined value. When the external wind force increases and causes the rotation speed of the rotating hood 4 to increase, the centrifugal rods 71 ​​will quickly extend and abut against the conical inner wall of the adjustment chamber 51 under the action of centrifugal force.

[0042] As the centrifugal rod 71 extends and abuts against the movable member 5, a downward thrust is applied to the movable member 5. This force drives the movable member 5 to slide downward along the inner wall of the inner tube 1, thereby changing the relative position between the regulating chamber 51 and the air passage 6, thereby gradually reducing the diameter of the air passage 6.

[0043] like Figure 4 As shown, an elastic component 8 is arranged between the movable member 5 and the inner tube 1 , and the movable member 5 needs to overcome the elastic force of the elastic component 8 when moving in the longitudinal direction.

[0044] The elastic components 8 are usually made of high-strength springs, elastic washers or rubber rings, etc., and are installed at appropriate positions between the movable part 5 and the inner tube 1. One end of these elastic components 8 is connected to the movable part 5, and the other end is fixed to the inner wall of the inner tube 1, forming a stable elastic support structure.

[0045] When the external wind force changes and causes the rotation speed of the rotating hood 4 to exceed a predetermined value, the transmission shaft 41 transmits power to the movable part 5 through the centrifugal abutment assembly 7, driving it to move longitudinally along the guide rail of the inner wall of the inner tube 1. However, during this movement, the movable part 5 must overcome the elastic force applied by the elastic assembly 8. This elastic design makes the movement of the movable part 5 more stable and controllable, avoiding the impact and vibration caused by sudden acceleration or deceleration.

[0046] like Figure 3 As shown, an expansion cylinder 11 is provided at the top end of the inner tube 1, and the rotary hood 4 is rotatably provided on the expansion cylinder 11. A lower conical surface is provided at the bottom end of the inner cavity of the expansion cylinder 11, and the outer side of the movable part 5 has an upper conical surface coaxial with the lower conical surface, and an air passage 6 is formed between the upper conical surface and the lower conical surface.

[0047] The bottom end of the inner cavity of the expansion tube 11 is set to a lower conical surface. The lower conical surface can form a perfect match with the upper conical surface formed on the outer side of the movable part 5. The upper conical surface and the lower conical surface are coaxially arranged, and the space between the two constitutes the air passage 6. This design of the upper conical surface and the lower conical surface is not only conducive to the smooth passage of air flow, but also can accurately adjust the caliber of the air passage 6 by changing the relative position of the conical surface when the movable part 5 moves.

[0048] When the external wind force increases and the rotation speed of the rotating hood 4 exceeds a predetermined value, the transmission shaft 41 drives the centrifugal abutment assembly 7 to work, and the centrifugal rod 71 extends horizontally and abuts against the conical inner wall of the adjusting cavity 51 of the movable member 5. Subsequently, the movable member 5 slides downward along the inner wall of the inner tube 1 under the push of the centrifugal force, and the upper conical surface of the outer side gradually approaches the lower conical surface of the bottom end of the expansion tube 11. In this process, the distance between the upper conical surface and the lower conical surface gradually decreases, thereby realizing the gradual reduction of the diameter of the air passage 6.

[0049] On the contrary, when the external wind force weakens and the rotation speed of the rotating hood 4 decreases to below the predetermined value, the centrifugal rod 71 is gradually retracted under the action of the elastic component 8, and the movable part 5 slides upward and resets under the reverse elastic force of the elastic component 8. At this time, the distance between the upper conical surface and the lower conical surface gradually increases, and the diameter of the air passage 6 also increases accordingly.

[0050] Through such a design, the condensing vertical terminal exhaust pipe can automatically adjust the diameter of the air passage 6 according to the change of external wind force, ensuring the efficient and stable operation of the exhaust system under different working conditions. At the same time, the tapered surface between the expansion tube 11 and the movable part 5 also improves the sealing performance and corrosion resistance of the system, and prolongs the service life of the exhaust pipe.

[0051] like Figure 7 and Figure 8 As shown, the centrifugal abutment assembly 7 also includes a rotating disk 72 coaxially arranged on the transmission shaft 41, and one end of the centrifugal rod 71 is rotatably connected to the end face of the rotating disk 72. When the rotation speed of the rotating disk 72 exceeds a predetermined value, the end of the centrifugal rod 71 abuts against the conical inner wall of the adjusting chamber 51.

[0052] The rotating disk 72 is tightly fixed on the transmission shaft 41 and rotates synchronously with the rotation of the transmission shaft 41. This coaxial arrangement not only ensures that the rotating disk 72 can accurately transmit the rotational power of the transmission shaft 41, but also makes the entire centrifugal abutment assembly 7 more stable and reliable during operation. One end of the centrifugal rod 71 is rotatably connected to the end face of the rotating disk 72. This connection method allows the centrifugal rod 71 to rotate under the drive of the rotating disk 72, while maintaining a certain degree of flexibility to cope with different working conditions. When the external wind force increases and causes the rotation speed of the rotating hood 4 to exceed a predetermined value, the rotation speed of the transmission shaft 41 also increases, thereby driving the rotating disk 72 to rotate at a high speed.

[0053] During the high-speed rotation of the rotating disk 72, the centrifugal rod 71 is acted upon by the centrifugal force. When the rotating speed of the rotating disk 72 exceeds a predetermined value, the centrifugal force on the centrifugal rod 71 reaches a level sufficient to overcome resistance such as its own gravity and the frictional force at the connection with the rotating disk 72, so that the end of the centrifugal rod 71 gradually extends outward and abuts against the tapered inner wall of the regulating chamber 51.

[0054] This abutment process not only realizes the pushing and adjusting function of the movable part 5, but also ensures the stability and accuracy of the adjustment process through the close fit between the tapered inner wall and the end of the centrifugal rod 71. As the end of the centrifugal rod 71 continues to extend and the abutment force gradually increases, the movable part 5 is gradually pushed and slides downward along the guide rail of the inner wall of the inner tube 1. During this sliding process, the distance between the upper tapered surface on the outer side of the movable part 5 and the lower tapered surface at the bottom end of the expansion tube 11 gradually decreases, thereby realizing the precise adjustment of the caliber of the gas passage 6.

[0055] like Figure 7 and Figure 8 As shown, the centrifugal abutment assembly 7 also includes a tension element 73 arranged on the rotating disk 72. The other end of the centrifugal rod 71 is connected to the rotating disk 72 through the tension element 73. When the rotation speed of the rotating disk 72 exceeds a predetermined value, the centrifugal rod 71 overcomes the tension of the tension element 73 and deviates from the axis of the rotating disk 72.

[0056] One end of the tension element 73 is fixedly connected to the rotating disk 72, and the other end is connected to the other end of the centrifugal rod 71. This connection method not only ensures that the tension element 73 can stably transmit force to the centrifugal rod 71, but also enables the centrifugal rod 71 to maintain a certain degree of flexibility and controllability when subjected to external force.

[0057] Under normal working conditions, the tension element 73 applies a constant tension to the centrifugal rod 71, and this tension keeps one end of the centrifugal rod 71 at a position close to the axis of the rotating disk 72. However, when the external wind force increases, causing the rotating hood 4 to rotate faster, thereby driving the transmission shaft 41 and the rotating disk 72 to rotate at high speed, the situation changes.

[0058] As the rotation speed of the rotating disk 72 increases, the centrifugal force on one end of the centrifugal rod 71 gradually increases. When the rotation speed of the rotating disk 72 exceeds a predetermined value, the centrifugal force on the centrifugal rod 71 will be sufficient to overcome the tension applied by the tension element 73. At this time, the centrifugal rod 71 will no longer maintain a position parallel to the axis of the rotating disk 72, but will deviate from the axis and extend outward.

[0059] This deviation of the centrifugal rod 71 is achieved by overcoming the tension of the tension element 73. In this process, the tension element 73 plays a key "threshold" role: only when the rotation speed of the rotating disk 72 is high enough and the centrifugal force generated is large enough, can the tension of the tension element 73 be overcome and the centrifugal rod 71 be driven to move. This design not only improves the response speed and sensitivity of the centrifugal abutment assembly 7, but also ensures the stability and reliability of the entire adjustment process.

[0060] As the centrifugal rod 71 deviates and extends, its end will gradually approach and abut against the tapered inner wall of the adjustment chamber 51. Through this abutment, the centrifugal rod 71 can push the movable part 5 to slide downward along the guide rail of the inner wall of the inner tube 1, thereby achieving precise adjustment of the diameter of the air passage 6. This adjustment process is not only efficient but also accurate, and can ensure that the smoke exhaust pipe can maintain the best working state under different working conditions.

[0061] like Figure 6As shown, the elastic component 8 includes a height adjustment member arranged on the inner tube 1, a positioning rod 84 slidingly passing through the height adjustment member in the longitudinal direction, and an elastic reset element 85 sleeved on the positioning rod 84, the height adjustment member has an escape channel 81 for smoke to pass through, the top end of the positioning rod 84 is fixedly connected to the bottom end of the movable member 5, and the elastic reset element 85 is located between the movable component and the adjustment member.

[0062] The bottom end of the expansion tube 11 is provided with a plug-in tube coaxially plugged into the top end of the inner tube 1. The height adjustment member includes an adjustment ring 82 coaxially slidably arranged in the inner tube, and an externally threaded tube 83 threadedly connected to the plug-in tube. The externally threaded tube 83 abuts against the bottom end of the adjustment ring 82. The positioning rod 84 slides through the adjustment ring 82. The elastic reset element 85 is located between the movable component and the adjustment ring 82.

[0063] like Figure 4 , Figure 5 and Figure 7 As shown, a bracket 91 is provided in the inner tube 1, and the transmission shaft 41 is rotatably connected to the bracket 91. The lower part of the transmission shaft 41 has a drainage cavity 411 extending along its circumference. A collecting bowl 92 is provided at the top of the movable component, and a water inlet hole 412 connected to the collecting bowl 92 is provided at the upper part of the drainage cavity 411. A lifting seat 93 connected to the bottom end of the transmission shaft 41 is provided at the bottom of the bracket 91. A one-way valve 94 is provided in the lifting seat 93. The one-way valve 94 extends into the drainage cavity 411 and is sealed and slidably connected thereto. A drainage pipe 95 connected thereto and passing through the inner tube 1 and the outer tube 2 is provided at the bottom of the one-way valve 94. When the transmission shaft 41 rotates, the lifting seat 93 lifts and lowers back and forth in the longitudinal direction.

[0064] As the cornerstone of the elastic component 8, the height adjustment member is designed with full consideration of the flexibility and stability of the adjustment. The adjustment member consists of two parts: one is an adjustment ring 82 coaxially slidably arranged in the inner cylinder, which can slide freely to adjust the height according to the changes in external conditions; the other is an external threaded cylinder 83 threadedly connected to the plug-in cylinder, which ensures the stability of the adjustment ring 82 by closely fitting with the plug-in cylinder. The external threaded cylinder 83 abuts against the bottom end of the adjustment ring 82, providing it with solid support, and also setting a clear boundary for the up and down movement of the adjustment ring 82.

[0065] The positioning rod 84 slides longitudinally through the adjusting ring 82, and its top end is fixedly connected to the bottom end of the movable member 5, thereby realizing the synchronous movement between the movable member 5 and the height adjusting member. This connection method not only ensures the stability and reliability of the movable member 5 during the movement, but also enables the height adjusting member to accurately transmit force to the movable member 5 to drive its movement.

[0066] The elastic reset element 85 is located between the movable component and the adjustment ring 82, and it plays a key role in buffering and resetting. When the movable part 5 is moved by external force, the elastic reset element 85 will deform and store energy; when the external force disappears, the elastic reset element 85 will release the stored energy and push the movable part 5 to return to its original position. This design not only improves the smoke exhaust pipe's resistance to external disturbances, but also ensures the smoke exhaust pipe's stability and reliability after long-term operation.

[0067] In addition, a plug-in tube is coaxially plugged into the top of the inner tube 1 at the bottom of the expansion tube 11. This design not only enhances the connection strength and sealing between the inner tube 1 and the expansion tube 11, but also facilitates the installation and positioning of the height adjustment member. The close fit between the plug-in tube and the top of the inner tube 1 ensures the stability of the entire smoke exhaust pipe system; and the threaded connection between the external threaded tube 83 and the plug-in tube realizes the precise positioning and fixation of the height adjustment member.

[0068] The collecting bowl 92 can collect rainwater that enters the inner tube through the rotating wind hood 4, and the rainwater enters the drainage cavity through the water inlet hole 412. During the process of the lifting seat 93 lifting and reciprocating in the longitudinal direction, the lifting seat 93 drives the one-way valve 94 to lift and reciprocate in the lower part of the drainage cavity 411. When the one-way valve 94 moves upward, the rainwater on the top of the one-way valve 94 can enter the drainage pipe 95 through the one-way valve 94, and when the one-way valve 94 moves downward, the movable one-way valve 94 is similar to the structure of a "piston", which can squeeze out the rainwater in the drainage pipe 95, thereby effectively preventing the rainwater from entering the inner tube and then entering the boiler. During the reciprocating lifting of the one-way valve 94, the rainwater in the collecting bowl 92 can be discharged, thereby preventing the rainwater from overflowing the collecting bowl 92.

[0069] like Fig. 9 As shown, a guide rod 911 extending downward is provided at the bottom end of the bracket 91, and the guide rod 911 slides longitudinally through the lifting seat 93, and an elastic compression element 96 is provided between the bottom end of the guide rod 911 and the lifting seat 93, and a drive ring 97 coaxial with the lifting seat 93 is provided at the top end, and a V-shaped groove 971 distributed along its circumference is provided at the top end of the drive ring 97, and a drive column 98 extending along its radial direction is provided at the bottom end of the outer circumferential surface of the transmission shaft 41, and the drive column 98 abuts against the top end of the drive ring 97.

[0070] An elastic compression element 96 is also provided between the bottom end of the guide rod 911 and the lifting seat 93. The elastic compression element 96 plays an important role in buffering and guiding the lifting seat 93 during its movement. When the lifting seat 93 is moved by an external force, the elastic compression element 96 will deform accordingly according to the moving distance, thereby absorbing and slowing down the impact force; at the same time, its elastic characteristics also provide a certain restoring force for the lifting seat 93, ensuring that the lifting seat 93 can be quickly and smoothly restored to its original position after the external force disappears.

[0071] A driving ring 97 coaxial with the lifting seat 93 is disposed at the top thereof, and a V-shaped groove 971 distributed along its circumference is designed at the top of the driving ring 97. The V-shaped groove 971 enables the transmission shaft 41 to drive the lifting seat 93 to perform lifting motion more stably during the rotation process.

[0072] The bottom end of the outer circumference of the transmission shaft 41 is provided with a driving column 98 extending in its radial direction. These driving columns 98 perfectly fit with the V-shaped groove 971 at the top of the driving ring 97. When the transmission shaft 41 rotates, the driving column 98 will slide along the track of the V-shaped groove 971 and generate a certain driving force. This driving force is transmitted to the lifting seat 93 through the driving ring 97, thereby realizing the lifting movement of the lifting seat 93. Then, the one-way valve 94 is driven to lift and lower in the lower part of the drainage chamber 411. Figure 3 As shown, a rain shield 31 located at the top of the air inlet 3 is also provided at the top of the outer circumferential surface of the inner tube 1 .

[0073] The rain cover 31 effectively blocks rainwater from above and prevents rainwater from directly splashing into the air inlet 3, thereby avoiding equipment failure or performance degradation caused by rainwater intrusion.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A condensing vertical terminal exhaust pipe, comprising an inner pipe (1) and an outer pipe (2) arranged coaxially, an air inlet (3) being formed between the top end of the outer pipe (2) and the outer circumferential surface of the inner pipe (1), characterized in that: A rotating hood (4) is arranged at the top of the outer tube (2), a movable part (5) drivingly connected to the rotating hood (4) is arranged at the top of the inner cavity of the outer tube (2), an air passage (6) with an adjustable caliber is formed between the movable part (5) and the inner wall of the outer tube (2), and when the rotation speed of the rotating hood (4) exceeds a predetermined value, the caliber of the air passage (6) gradually decreases during the downward movement of the movable part (5).

2. A condensing vertical terminal exhaust pipe according to claim 1, characterized in that: A transmission shaft (41) extending downward and coaxial with the rotational hood (4) is provided in the rotational hood (4); a movable member (5) is slidably provided in the inner tube (1) along the longitudinal direction; the movable member (5) has an adjustment cavity (51) coaxial with the transmission shaft (41); the adjustment cavity (51) has a conical inner wall; a centrifugal abutment assembly (7) is provided on the transmission shaft (41); the centrifugal abutment assembly (7) has a centrifugal rod (71) that can extend horizontally when the rotation speed of the transmission shaft (41) exceeds a predetermined value; the outer end of the centrifugal rod (71) abuts against the conical inner wall of the adjustment cavity (51).

3. A condensing vertical terminal exhaust pipe according to claim 2, characterized in that: An elastic component (8) is provided between the movable member (5) and the inner tube (1), and the movable member (5) needs to overcome the elastic force of the elastic component (8) when moving in the longitudinal direction.

4. A condensing vertical terminal exhaust pipe according to claim 3, characterized in that: An expansion tube (11) is disposed at the top end of the inner tube (1), a rotary hood (4) is rotatably disposed on the expansion tube (11), a lower conical surface is disposed at the bottom end of the inner cavity of the expansion tube (11), an upper conical surface coaxial with the lower conical surface is disposed on the outer side of the movable member (5), and an air passage (6) is formed between the upper conical surface and the lower conical surface.

5. A condensing vertical terminal exhaust pipe according to claim 4, characterized in that: The centrifugal abutment assembly (7) further comprises a rotating disk (72) coaxially arranged on the transmission shaft (41); one end of the centrifugal rod (71) is rotatably connected to the end surface of the rotating disk (72); when the rotation speed of the rotating disk (72) exceeds a predetermined value, the end of the centrifugal rod (71) abuts against the conical inner wall of the regulating chamber (51).

6. A condensing vertical terminal exhaust pipe according to claim 5, characterized in that: The centrifugal abutment assembly (7) further comprises a tension element (73) arranged on the rotating disk (72); the other end of the centrifugal rod (71) is connected to the rotating disk (72) via the tension element (73); when the rotation speed of the rotating disk (72) exceeds a predetermined value, the centrifugal rod (71) overcomes the tension of the tension element (73) and deviates from the axis of the rotating disk (72).

7. A condensing vertical terminal exhaust pipe according to claim 4, characterized in that: The elastic component (8) comprises a height adjustment member arranged on the inner tube (1), a positioning rod (84) slidingly extending through the height adjustment member in the longitudinal direction, and an elastic reset element (85) sleeved on the positioning rod (84), the height adjustment member having an escape passage (81) through which smoke can pass, the top end of the positioning rod (84) being fixedly connected to the bottom end of the movable member (5), and the elastic reset element (85) being located between the movable component and the adjustment member.

8. A condensing vertical terminal smoke exhaust pipe according to any one of claims 2 to 7, characterized in that: A bracket (91) is arranged in the inner tube (1), the transmission shaft (41) is rotatably connected to the bracket (91), the lower part of the transmission shaft (41) has a drainage cavity (411) extending along the circumference thereof, a collecting bowl (92) is arranged at the top of the movable component, the upper part of the drainage cavity (411) is provided with a water inlet hole (412) connected to the collecting bowl (92), the bottom of the bracket (91) is provided with a lifting seat (93) which is transmission-connected to the bottom end of the transmission shaft (41), a one-way valve (94) is arranged in the lifting seat (93), the one-way valve (94) extends into the drainage cavity (411) and is sealingly and slidably connected thereto, the bottom end of the one-way valve (94) is provided with a drainage pipe (95) which is in communication with the one-way valve (94) and penetrates the inner tube (1) and the outer tube (2), and when the transmission shaft (41) rotates, the lifting seat (93) is lifted and lowered reciprocatingly in the longitudinal direction.

9. A condensing vertical terminal exhaust pipe according to claim 8, characterized in that: A guide rod (911) extending downward is provided at the bottom end of the bracket (91), and the guide rod (911) slides longitudinally and penetrates the lifting seat (93). An elastic compression element (96) is provided between the bottom end of the guide rod (911) and the lifting seat (93). A driving ring (97) coaxial with the lifting seat (93) is provided at the top end of the lifting seat (93), and a V-shaped groove (971) distributed along the circumference of the driving ring (97) is provided at the top end of the driving ring (97). A driving column (98) extending radially is provided at the bottom end of the outer circumferential surface of the transmission shaft (41), and the driving column (98) abuts against the top end of the driving ring (97).

10. The condensing vertical terminal exhaust pipe according to claim 1, characterized in that: A rain shield (31) located at the top of the air inlet (3) is also provided at the top of the outer circumferential surface of the inner tube (1).

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