Heat exchanger of energy-saving boiler

Abstract

The invention discloses a heat exchanger of an energy-saving boiler, which belongs to the technical field of heat exchange and comprises a boiler body and a heat exchanger, an air inlet head and a water inlet head are arranged on the heat exchanger, an air outlet head and a water outlet head are arranged below the heat exchanger, a connector is mounted on the water inlet head, and a heat exchange tube arranged in the heat exchanger is communicated below the water inlet head. Movable grooves are formed in the inner wall of the water inlet head. According to the heat exchanger, a connecting plate, a spiral partition plate, a connecting ring, a driving assembly, a movable groove and a sealing ring plate are adopted, so that water flow flowing through a water passing plate is divided into multiple strands of small water flow, the small water flow enters a water inlet head and a heat exchange pipe in a spiral shape, and it is ensured that the water flow can be fully divided and circulate inside and outside in the heat exchange pipe; due to the design, sufficient and uniform contact between water flow and the wall of the heat exchange pipe can be achieved, the heat exchange efficiency is greatly improved, meanwhile, due to uniform distribution and spiral flowing of the water flow, water hammer impact is effectively reduced, and the service life of a pipeline is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange, and in particular relates to a heat exchanger for an energy-saving boiler. Background Art

[0002] With the rapid development of social industry and manufacturing, the acquisition and efficient use of thermal energy has gradually become the focus of the industrial field. Especially in industrial fields such as power plants, chemical production, and metallurgical processing, boilers are core thermal energy equipment, and their thermal efficiency is directly related to the energy utilization rate and economic cost control of the entire production process. Therefore, people have put forward higher requirements for the performance of boiler thermal energy conversion and control systems, especially in terms of temperature control, energy recovery, and energy conservation and emission reduction.

[0003] In actual application, a large amount of high-temperature steam generated during boiler operation has high thermal energy. If the energy cannot be effectively recovered and reasonably utilized, it will not only cause energy waste, but may also cause overheating damage to subsequent pipelines and equipment, and even cause safety hazards. Therefore, the development of a heat exchange device with a reasonable structure, high efficiency and low energy consumption has become an important direction of current technological research and development. To achieve the above purpose, plate heat exchangers have been widely used in energy-saving boiler systems due to their advantages of high heat transfer efficiency, compact structure and flexible operation. They can effectively transfer the steam heat generated by the boiler to the fluid that needs to be heated, thereby realizing the reuse of thermal energy and improving the overall system energy efficiency.

[0004] The prior art discloses some invention patents in the field of heat exchange technology, among which the invention patent with publication number CN112524980B discloses a plate heat exchange method for a high-efficiency energy-saving boiler, including a boiler, a gas guide valve fixedly connected to the top of the boiler, a filter box fixedly connected to the outer end of the gas guide valve, and a through pipe fixedly connected to the outer end of the filter box. The plate heat exchanger of the high-efficiency energy-saving boiler is provided with symmetrically distributed semicircular notches on the outside of the plate, and symmetrically distributed limit rods are movably connected inside the semicircular notches on the outer side of the plate, and a sealed pressure plate is movably connected on the top of the plate, and a high-pressure shell and a cover are movably connected outside the limit rod, and the high-pressure shell and the cover are used to provide a closed space for the plate, thereby ensuring that the device will not be contaminated by dust in the air during operation, thereby solving the problem that the previous device is exposed to the outside, which easily causes the gasket inside the plate to oxidize.

[0005] Disadvantages of the existing technology: the plate heat exchanger in the existing technology still has some defects and deficiencies that cannot be ignored, especially in terms of cold water input and heat exchange efficiency. During the operation of the current heat exchange system, when cold water enters the heat exchanger through the input pipe, it often directly impacts the internal bent or turned pipe parts. This violent fluid impact forms a typical "water hammer effect". The water hammer phenomenon will cause periodic pressure fluctuations in the pipe. Under long-term action, it is easy to cause fatigue damage to the pipe, loosening of the connection parts, and even cracking, leakage and other structural damage, thereby greatly reducing the service life and operation stability of the heat exchanger system; In addition, in the existing structure, cold water enters the heat exchange unit in the form of a whole stream through the pipe, and its flow path and contact area are relatively fixed. This flow state limits the disturbance and mixing process inside the fluid, resulting in a significant difference in heat exchange efficiency between the inner and outer layers of the water flow. Specifically, the side of the water flow close to the pipe wall can quickly absorb heat, while the central water body lacks sufficient disturbance and the temperature rises slowly, thereby forming an obvious radial temperature difference inside the water body. The existence of such temperature difference not only reduces the overall heat exchange efficiency, but also causes local overheating or local heat waste, further weakening the role of the heat exchanger in energy saving. Therefore, there is an urgent need for a new type of heat exchange structure that can effectively alleviate water hammer impact, improve the fluid flow state, achieve more uniform and sufficient heat exchange, and improve overall thermal utilization.

[0006] Based on this, the present invention designs a heat exchanger for an energy-saving boiler to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to solve the problems in the above-mentioned background technology and to propose a heat exchanger for an energy-saving boiler.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A heat exchanger for an energy-saving boiler comprises a boiler body and a heat exchanger, wherein an air inlet head and a water inlet head are provided on the heat exchanger, an air outlet head and a water outlet head are provided under the heat exchanger, a connecting head is installed on the water inlet head, a heat exchange tube arranged inside the heat exchanger is connected below the water inlet head, a movable groove is provided on the inner wall of the water inlet head, a sealing ring plate is slidably connected in the movable groove, a rotating diverter mechanism is penetrated and connected on the sealing ring plate, the rotating diverter mechanism is connected in the water inlet head, four first magnetic blocks are connected to the inner wall of the water inlet head, four swinging spoiler mechanisms are connected to the inner wall of the water inlet head, a connecting shaft is connected below the rotating diverter mechanism, and the bottom end of the connecting shaft is connected to an impact buffer mechanism arranged at the bend of the heat exchange tube.

[0009] As a further description of the above technical solution: The boiler body is connected with a steam pipe, one end of the steam pipe is provided with a steam-water separator, the side of the steam-water separator is connected with an intermediate pipe, the bottom end of the intermediate pipe is connected with an air intake head, and a support seat is connected under the heat exchanger.

[0010] As a further description of the above technical solution: The rotating diversion mechanism includes a connecting ring and a driving assembly connected to the inner wall of the water inlet head. The output shaft of the driving assembly is fixedly connected to the rotating shaft. The bottom end of the rotating shaft is connected to a connecting plate. The connecting plate is located inside the connecting ring. A spiral partition is connected between the outer arc surface of the connecting plate and the inner arc surface of the connecting ring.

[0011] As a further description of the above technical solution: The connecting ring is connected through the sealing ring plate, the connecting plate is set to be circular, the rotating shaft and the connecting plate are connected at an eccentric position, the connecting plate is connected to the top of the connecting shaft, and a second magnetic plate is connected under the connecting plate.

[0012] As a further description of the above technical solution: The rotating shaft outer sleeve is provided with a bearing, and a fixing rod is connected to the side of the bearing. The fixing rod is fixedly connected to the inner wall of the water inlet head, and the sealing ring plate is always located in the movable groove during the rotation process of the connecting ring.

[0013] As a further description of the above technical solution: The swing spoiler mechanism includes a connecting frame fixedly connected to the inner wall of the water inlet head, a connecting pin is penetrated through the side of the connecting frame, a connecting seat is hinged outside the connecting pin, a swing plate is fixedly connected to the side of the connecting seat, a second magnetic block is connected to the side of the swing plate close to the inner wall of the water inlet head, and the second magnetic block has opposite magnetism to the side close to the first magnetic block.

[0014] As a further description of the above technical solution: A first magnetic plate is connected to a position on the upper surface of the swing plate corresponding to the second magnetic plate, and the first magnetic plate has opposite magnetic properties at a side close to the second magnetic plate.

[0015] As a further description of the above technical solution: The impact buffer mechanism comprises a rotating wheel, which is connected to the bottom end of the connecting shaft, and the connection position between the two deviates from the axis position of the rotating wheel. The rotating wheel is slidably connected to a moving frame outside, and the moving frame is set to be rectangular.

[0016] As a further description of the above technical solution: The side of the movable frame is connected with an intermediate rod, the bottom end of the intermediate rod is fixedly connected with a buffer plate, a pin assembly is hinged under the buffer plate, and the pin assembly is connected to the inner wall of the heat exchange tube.

[0017] As a further description of the above technical solution: The buffer plate is arranged in the form of a telescopic plate, the buffer plate is slidably connected to the inner wall of the heat exchange tube, the buffer plate is arranged obliquely, and the buffer plate is arranged at the bending part of the heat exchange tube.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, a connecting plate, a spiral partition plate, a connecting ring, a driving assembly, a movable groove and a sealing ring plate are used. When the driving assembly is started, it can accurately control the rotation of the rotating shaft, the connecting plate and the connecting shaft. In particular, an eccentric setting is adopted between the rotating shaft and the connecting plate. This design enables the connecting plate, the spiral partition plate, the connecting ring and the sealing ring plate to move flexibly in the movable groove. Through this unique design, the water flow entering the water inlet head and the heat exchange tube is first effectively separated by the spiral partition plate. At the same time, the water-passing plate composed of the spiral partition plate, the connecting plate and the connecting ring shakes regularly in the horizontal direction, so that the water flow flowing through the water-passing plate is divided into multiple small water flows. These small water flows enter the water inlet head and the heat exchange tube in a spiral shape, ensuring that the water flow can be fully divided and circulated inside and outside the heat exchange tube. More importantly, this design enables the water flow to achieve sufficient and uniform contact with the wall of the heat exchange tube, thereby greatly improving the heat exchange efficiency. At the same time, due to the uniform distribution and spiral flow of the water flow, the water hammer impact is effectively reduced and the service life of the pipeline is extended.

[0019] 2. In the present invention, a second magnetic plate, a first magnetic plate, a first magnetic block, a second magnetic block and a swinging plate are used. When the connecting plate is driven to rotate, the second magnetic plate rotates accordingly, thereby generating a magnetic interaction with the first magnetic plate. This magnetic interaction cleverly controls the swinging action of the swinging plate. The design of the swinging plate is not only unique but also practical. It can effectively guide the downward flowing water flow, so that the water flow flows into the heat exchange tube in a multi-angle manner. This multi-angle water flow inflow method not only increases the disturbance of the water flow, but also effectively impacts the debris that may adhere to the inner wall of the heat exchange tube, thereby greatly reducing the probability of scale formation.

[0020] 3. In the present invention, a connecting shaft, a rotating wheel, a moving frame and a buffer plate are used. When the connecting shaft starts and rotates, it cleverly squeezes the moving frame through mechanical transmission, so that it produces a smooth moving motion. In this process, the movement of the moving frame further controls the precise rotation of the buffer plate around the pin assembly. It is worth mentioning that the buffer plate is not only exquisitely designed, but also has certain elastic properties. This elastic property enables the buffer plate to effectively impact and buffer the water flow flowing down from above, thereby significantly reducing the impact and potential damage caused by the water hammer phenomenon on the bend of the heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A schematic diagram of the three-dimensional structure of a heat exchanger for an energy-saving boiler proposed by the present invention; Figure 2 This is a bottom-up stereoscopic structural diagram of a heat exchanger for an energy-saving boiler proposed by the present invention; Figure 3 A schematic diagram of the three-dimensional structure of a water inlet head of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 4 A schematic diagram of a three-dimensional cross-sectional structure of a heat exchange tube of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 5 This is a schematic diagram of the three-dimensional separation structure of the water inlet head and the connecting head of the heat exchanger of an energy-saving boiler proposed by the present invention; Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a water inlet head of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 7 A heat exchanger for an energy-saving boiler proposed by the present invention Figure 6 The enlarged structural diagram of part A in the middle; Figure 8 A schematic diagram of the three-dimensional structure of a rotating separation mechanism of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 9 This is a bottom-up three-dimensional structural schematic diagram of a connecting plate of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 10 A schematic diagram of the three-dimensional structure of a swing spoiler mechanism of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 11 A schematic diagram of the three-dimensional structure of a connecting shaft of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 12 A schematic diagram of the three-dimensional structure of an impact buffer mechanism of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 13 A schematic diagram of the three-dimensional structure of a boiler body of a heat exchanger of an energy-saving boiler proposed by the present invention; Figure 14 This is a schematic diagram of the three-dimensional structure of a heat exchanger of an energy-saving boiler proposed by the present invention.

[0022] Legend: 1. Boiler body; 2. Steam pipe; 3. Steam separator; 4. Heat exchanger; 5. Air inlet; 6. Air outlet; 7. Water inlet; 8. Water outlet; 9. Support seat; 10. Intermediate pipe; 11. Connector; 12. Movable groove; 13. Sealing ring plate; 14. Rotating diversion mechanism; 141. Driving assembly; 142. Rotating shaft; 143. Connecting plate; 144. Connecting ring; 145. Spiral partition; 146. Bearing; 147 , fixing rod; 148, second magnetic plate; 15, first magnetic block; 16, swing spoiler mechanism; 161, connecting frame; 162, connecting pin; 163, connecting seat; 164, swing plate; 165, first magnetic plate; 166, second magnetic block; 17, connecting shaft; 18, impact buffer mechanism; 181, rotating wheel; 182, moving frame; 183, buffer plate; 184, middle rod; 185, pin assembly; 19, heat exchange tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1 -Attached Figure 14 The present invention provides a technical solution: a heat exchanger of an energy-saving boiler, comprising a boiler body 1 and a heat exchanger 4, wherein an air inlet head 5 and a water inlet head 7 are provided on the heat exchanger 4, an air outlet head 6 and a water outlet head 8 are provided below the heat exchanger 4, a connecting head 11 is installed on the water inlet head 7, a heat exchange tube 19 arranged inside the heat exchanger 4 is connected below the water inlet head 7, a movable groove 12 is opened on the inner wall of the water inlet head 7, a sealing ring plate 13 is slidably connected in the movable groove 12, a rotating diversion mechanism 14 is penetrated and connected on the sealing ring plate 13, the rotating diversion mechanism 14 is connected in the water inlet head 7, four first magnetic blocks 15 are connected to the inner wall of the water inlet head 7, four swinging spoiler mechanisms 16 are connected to the inner wall of the water inlet head 7, a connecting shaft 17 is connected below the rotating diversion mechanism 14, and the bottom end of the connecting shaft 17 is connected to an impact buffer mechanism 18 arranged at the bending part of the heat exchange tube 19.

[0025] The boiler body 1 is connected with a steam pipe 2, one end of the steam pipe 2 is provided with a steam-water separator 3, the side of the steam-water separator 3 is connected with an intermediate pipe 10, the bottom end of the intermediate pipe 10 is connected with the air intake head 5, and the heat exchanger 4 is connected with a support seat 9.

[0026] The steam separator 3 will filter the steam generated by the boiler, and the heat exchanger 4 will collect and use the heat in the steam; Specifically, Figures 5-9As shown, the rotating diversion mechanism 14 includes a connecting ring 144 and a driving component 141 connected to the inner wall of the water inlet head 7, the output shaft of the driving component 141 is fixedly connected to the rotating shaft 142, the bottom end of the rotating shaft 142 is connected to a connecting plate 143, the connecting plate 143 is located inside the connecting ring 144, and a spiral partition 145 is connected between the outer arc surface of the connecting plate 143 and the inner arc surface of the connecting ring 144.

[0027] The connecting ring 144 is connected to the sealing ring plate 13 , the connecting plate 143 is set to be circular, the rotating shaft 142 and the connecting plate 143 are connected in an eccentric position, the connecting plate 143 is connected to the top of the connecting shaft 17 , and a second magnetic plate 148 is connected under the connecting plate 143 .

[0028] The rotating shaft 142 and the connecting plate 143 are eccentrically arranged. This design enables the connecting plate 143, the spiral partition plate 145, the connecting ring 144 and the sealing ring plate 13 to move flexibly in the movable groove 12. Through this unique design, the water flow entering the water inlet head 7 and the heat exchange tube 19 is first effectively separated by the spiral partition plate 145.

[0029] A bearing 146 is provided on the outer sleeve of the rotating shaft 142 , and a fixing rod 147 is connected to the side of the bearing 146 . The fixing rod 147 is fixedly connected to the inner wall of the water inlet head 7 . The sealing ring plate 13 is always located in the movable groove 12 as the connecting ring 144 rotates.

[0030] The bearing 146 supports the rotation of the rotating shaft 142 and the connecting plate 143, and the driving assembly 141 controls the rotation of the connecting block. Due to the eccentric connection between the two, the connecting block, the spiral partition plate 145 and the connecting ring 144 are controlled to rotate and shake in the horizontal direction, so that the water flow is separated into multiple streams and the water flow is transported and shaken in the horizontal direction. The sealing ring plate 13 cooperates with the movable groove 12 to ensure that the sealing ring plate 13 and the connecting plate 143 remain stable when moving in the horizontal direction, ensuring the sealing effect between the connecting ring 144 and the water inlet head 7, and the water flowing out of the connecting head 11 flows through the position between the connecting ring 144 and the connecting plate 143.

[0031] Specifically, Figures 7-10 As shown, the swing spoiler mechanism 16 includes a connecting frame 161 fixedly connected to the inner wall of the water inlet head 7, a connecting pin 162 is penetrated through the side of the connecting frame 161, a connecting seat 163 is hinged outside the connecting pin 162, a swing plate 164 is fixedly connected to the side of the connecting seat 163, and a second magnetic block 166 is connected to the side of the swing plate 164 close to the inner wall of the water inlet head 7, and the second magnetic block 166 has opposite magnetism to the side close to the first magnetic block 15.

[0032] A first magnetic plate 165 is connected to a position on the upper surface of the swing plate 164 corresponding to the second magnetic plate 148 , and the first magnetic plate 165 and the second magnetic plate 148 have opposite magnetic properties at their respective sides.

[0033] The magnetic force between the second magnetic plate 148 and the first magnetic plate 165 will control the rotation of the swing plate 164, and the connecting pin 162 will ensure that the swing plate 164 itself can rotate stably. The magnetic force between the first magnetic block 15 and the second magnetic block 166 will ensure that the swing plate 164 is in a relatively stable state when the distance between the first magnetic plate 165 and the second magnetic plate 148 is far.

[0034] The design of the swing plate 164 is not only unique but also practical. It can effectively guide the downward flowing water flow so that the water flow flows into the heat exchange tube 19 in a multi-angle manner. This multi-angle water flow inflow method not only increases the disturbance of the water flow, but also effectively impacts the debris that may be adhered to the inner wall of the heat exchange tube 19.

[0035] Specifically, Figures 3-4 and Figures 11-12 As shown, the impact buffer mechanism 18 includes a rotating wheel 181, which is connected to the bottom end of the connecting shaft 17. The connection position between the two deviates from the axial position of the rotating wheel 181. The rotating wheel 181 is slidably connected to a moving frame 182 outside, and the moving frame 182 is set to a rectangle.

[0036] The side of the movable frame 182 is connected with an intermediate rod 184 , the bottom end of the intermediate rod 184 is fixedly connected with a buffer plate 183 , a pin assembly 185 is hinged under the buffer plate 183 , and the pin assembly 185 is connected to the inner wall of the heat exchange tube 19 .

[0037] The buffer plate 183 is configured as a telescopic plate. The buffer plate 183 is slidably connected to the inner wall of the heat exchange tube 19 . The buffer plate 183 is inclined. The buffer plate 183 is disposed at the bend of the heat exchange tube 19 .

[0038] The buffer plate 183 is not only exquisitely designed, but also has certain elastic properties. This elastic property enables the buffer plate 183 to effectively impact and buffer the water flowing down from above.

[0039] The rotating wheel 181 eccentrically connected to the connecting shaft 17 squeezes the moving frame 182 during rotation. The connecting shaft 17 squeezes the moving frame 182 to move. During the movement of the moving frame 182, the buffer plate 183 is controlled to rotate around the pin assembly 185. The buffer plate 183 itself has a certain elasticity to buffer the water flow flowing down from above.

[0040] Working principle, when using: When the boiler body 1 is working, the high-temperature steam generated is separated by the steam-water separator 3, and then the steam enters the heat exchanger 4 through the intermediate pipe 10, and the cold water enters the heat exchange tube 19 through the connector 11 and the water inlet head 7. At this time, the driving component 141 is controlled to work. When the driving component 141 is working, the rotating shaft 142, the connecting plate 143 and the connecting shaft 17 are controlled to rotate. Since the rotating shaft 142 and the connecting plate 143 are eccentrically arranged, the connecting plate 143, the spiral partition plate 145, the connecting ring 144 and the sealing ring plate 17 are controlled. 3 moves in the movable groove 12, and the water flow entering the water inlet head 7 and the heat exchange tube 19 through the connecting head 11 and the spiral partition 145 is separated by the spiral partition 145. At the same time, the water-passing plate composed of the spiral partition 145, the connecting plate 143 and the connecting ring 144 shakes in the horizontal direction, so that the water flow passing through the water-passing plate is divided into multiple streams, and the water flow enters the water inlet head 7 and the heat exchange tube 19 in a spiral shape, so that the water flow can be divided and fully circulated inside and outside the heat exchange tube 19, and fully and evenly contacts the wall of the heat exchange tube 19; The magnetic force between the rotating second magnetic plate 148 and the first magnetic plate 165 will control the swinging plate 164 to swing. The swinging plate 164 guides the downward flowing water flow so that the water flow can flow into the heat exchange tube 19 at multiple angles. The water flow flowing into the heat exchange tube 19 at multiple angles will impact the debris adhered to the inner wall of the heat exchange tube 19, reducing the probability of scale formation. During the rotation of the connecting shaft 17, the movable frame 182 will be squeezed to move. During the movement of the movable frame 182, the buffer plate 183 is controlled to rotate around the pin shaft assembly 185. The buffer plate 183 itself has a certain elasticity, which buffers the water flow flowing down from above, reducing the impact and influence of water hammer on the bending part of the heat exchange tube 19.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat exchanger for an energy-saving boiler, comprising a boiler body (1) and a heat exchanger (4), characterized in that: The heat exchanger (4) is provided with an air inlet head (5) and a water inlet head (7), and the heat exchanger (4) is provided with an air outlet head (6) and a water outlet head (8) at the bottom. A connecting head (11) is installed on the water inlet head (7), and a heat exchange tube (19) arranged inside the heat exchanger (4) is connected below the water inlet head (7). A movable groove (12) is provided on the inner wall of the water inlet head (7), and a sealing ring plate (13) is slidably connected in the movable groove (12). A rotating flow diversion mechanism (14) is connected through the sealing ring plate (13), and the rotating flow diversion mechanism (14) is connected in the water inlet head (7). Four first magnetic blocks (15) are connected to the inner wall of the water inlet head (7), and four swinging flow disturbance mechanisms (16) are connected to the inner wall of the water inlet head (7). A connecting shaft (17) is connected below the rotating flow diversion mechanism (14), and the bottom end of the connecting shaft (17) is connected to an impact buffer mechanism (18) arranged at a bend of the heat exchange tube (19).

2. The heat exchanger for an energy-saving boiler according to claim 1, characterized in that: The boiler body (1) is connected to a steam pipe (2), one end of the steam pipe (2) is provided with a steam-water separator (3), the side of the steam-water separator (3) is connected to an intermediate pipe (10), the bottom end of the intermediate pipe (10) is connected to an air inlet head (5), and a support base (9) is connected below the heat exchanger (4).

3. The heat exchanger for an energy-saving boiler according to claim 1, characterized in that: The rotary flow-dividing mechanism (14) comprises a connecting ring (144) and a driving assembly (141) connected to the inner wall of the water inlet head (7); the output shaft of the driving assembly (141) is fixedly connected to a rotating shaft (142); the bottom end of the rotating shaft (142) is connected to a connecting plate (143); the connecting plate (143) is located inside the connecting ring (144); and a spiral partition plate (145) is connected between the outer arc surface of the connecting plate (143) and the inner arc surface of the connecting ring (144).

4. The heat exchanger for an energy-saving boiler according to claim 3, characterized in that: The connecting ring (144) is connected to the sealing ring plate (13) through and through, the connecting plate (143) is designed to be circular, the rotating shaft (142) and the connecting plate (143) are connected at an eccentric position, the connecting plate (143) is connected to the top end of the connecting shaft (17), and a second magnetic plate (148) is connected below the connecting plate (143).

5. The heat exchanger for an energy-saving boiler according to claim 4, characterized in that: The outer sleeve of the rotating shaft (142) is provided with a bearing (146), the side of the bearing (146) is connected to a fixing rod (147), the fixing rod (147) is fixedly connected to the inner wall of the water inlet head (7), and the sealing ring plate (13) is always located in the movable groove (12) as the connecting ring (144) rotates.

6. The heat exchanger for an energy-saving boiler according to claim 5, characterized in that: The swing spoiler mechanism (16) comprises a connecting frame (161) fixedly connected to the inner wall of the water inlet head (7); a connecting pin (162) is provided through the side of the connecting frame (161); a connecting seat (163) is hingedly connected to the outside of the connecting pin (162); a swing plate (164) is fixedly connected to the side of the connecting seat (163); a second magnetic block (166) is connected to the side of the swing plate (164) close to the inner wall of the water inlet head (7); and the second magnetic block (166) has opposite magnetism to the side close to the first magnetic block (15).

7. The heat exchanger for an energy-saving boiler according to claim 6, characterized in that: A first magnetic plate (165) is connected to a position on the upper surface of the swing plate (164) corresponding to the second magnetic plate (148); the first magnetic plate (165) has opposite magnetic properties on a side close to the second magnetic plate (148).

8. The heat exchanger for an energy-saving boiler according to claim 1, characterized in that: The impact buffer mechanism (18) comprises a rotating wheel (181), the rotating wheel (181) being connected to the bottom end of the connecting shaft (17), the connection position between the two being offset from the axis position of the rotating wheel (181), the rotating wheel (181) being slidably connected to a moving frame (182) outside, the moving frame (182) being configured in a rectangular shape.

9. The heat exchanger for an energy-saving boiler according to claim 8, characterized in that: The side of the movable frame (182) is connected to an intermediate rod (184), the bottom end of the intermediate rod (184) is fixedly connected to a buffer plate (183), a pin assembly (185) is hinged under the buffer plate (183), and the pin assembly (185) is connected to the inner wall of the heat exchange tube (19).

10. The heat exchanger for an energy-saving boiler according to claim 9, characterized in that: The buffer plate (183) is arranged in the form of a telescopic plate. The buffer plate (183) is slidably connected to the inner wall of the heat exchange tube (19). The buffer plate (183) is arranged in an inclined manner. The buffer plate (183) is arranged at a bend of the heat exchange tube (19).

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