An energy-saving tubular heat exchanger

Abstract

The present invention is applicable to the field of heat exchange technology and provides an energy-saving tubular heat exchanger, including a tube body assembly, wherein the end of the tube body assembly is threadedly connected to a water flow assembly; the tube body assembly includes a tube body part, a sealing part connected and fixed to one end of the tube body part, and a ring part rotatably fitted inside the tube body part. The device solves the problem that during the use of the existing tubular heat exchanger, the liquid is mostly controlled by a solenoid valve, which cannot increase the temporary storage time of the hot fluid inside the heat exchange shell, reduces the heat exchange time between the cold fluid and the hot fluid, and cannot control the outflow of the hot fluid through the properties of the internal fluid itself, which easily leads to too short heat exchange time and low heat exchange effect. The device achieves a certain energy-saving effect and avoids the technical effect of low heat exchange effect caused by too short heat exchange time.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and more particularly to an energy-saving tubular heat exchanger. Background Art

[0002] Tubular heat exchangers are widely used in the chemical, petroleum, energy, and pharmaceutical industries. They exchange heat between two fluids at different temperatures through the tube walls. Tubular heat exchangers utilize the walls of the tube bundle enclosed in a shell as the heat transfer surface. They offer a simple structure, low cost, a wide flow cross-section, and easy scale removal. They can operate under high temperatures and high pressures.

[0003] At present, the tubular heat exchangers on the market often have the following technical problems during the heat exchange process:

[0004] During use, existing tubular heat exchangers mostly control the liquid through solenoid valves, which cannot increase the temporary storage time of the hot fluid inside the heat exchange shell, reducing the heat exchange time between the cold fluid and the hot fluid. Since the outflow of the hot fluid cannot be controlled by the properties of the internal fluid itself, it is easy to cause the heat exchange time to be too short and the heat exchange effect to be low. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an energy-saving tubular heat exchanger that can utilize the buoyancy principle to replace the original solenoid valve to control the outflow of liquid, increase the temporary storage time of the hot fluid inside the heat exchange shell, and improve the heat exchange time between the cold fluid and the hot fluid. While increasing the heat exchange effect between the cold fluid and the hot fluid, the buoyancy of the hot fluid is utilized to control the outflow of the hot fluid, which to a certain extent achieves an energy-saving effect and avoids the low heat exchange effect caused by too short heat exchange time.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An energy-saving tubular heat exchanger comprises a tube assembly, wherein the end of the tube assembly is threadedly connected with a water flow assembly.

[0008] The pipe body assembly includes a pipe body part, a blocking part connected and fixed to one end of the pipe body part, and an annular part rotatably fitted inside the pipe body part.

[0009] The tube body comprises a heat exchange shell, and the heat exchange shell is provided with a plurality of rectangular slots on both opposite end surfaces, and sealing plates are inserted and fixed inside the plurality of rectangular slots, and a plurality of first U-shaped heat exchange tubes are arranged through and connected between the two sealing plates, and a second U-shaped heat exchange tube and a third U-shaped heat exchange tube are respectively arranged through and connected between the two sealing plates. A side plate is fixed to the inner wall of the heat exchange shell, and a U-shaped vertical plate is fixed on the side surface of the side plate, and two symmetrical vertical grooves are provided on the side surface of the U-shaped vertical plate, and a displacement plate is slidably fitted between the two vertical grooves, and an extension plate is fixed on one side of the displacement plate, and a buoyancy ball is fixed on the side surface of the extension plate, and a first pin shaft is fixed on the other side surface of the displacement plate, and a rotating arm rotatably fitted with a ring-shaped member is rotatably fitted on the side surface of the first pin shaft, and a top plate is fixed on the side surface of the U-shaped vertical plate near the top, and an elastic spring is fixed between the top plate and the extension plate.

[0010] The present invention is further configured such that: the outer peripheral side surface of the heat exchange shell is connected to a positioning cylinder above the top plate, and a guide rod is fixed on the top of the positioning cylinder and sequentially penetrates and slides on the top plate and the extension plate.

[0011] The present invention is further configured as follows: a feed pipe is provided in communication with the outer wall of the heat exchange shell, a discharge pipe is provided in communication with the outer peripheral side of the heat exchange shell, and two annular rails are fixed on the inner wall of the heat exchange shell above the discharge pipe.

[0012] The annular member includes a sealing ring that rotatably fits between the two annular rails, a discharge port is opened through the inner wall of the sealing ring, a lower extension plate is fixed to the inner wall of the sealing ring above the discharge port, and a second pin shaft that rotatably fits on the rotating arm is fixed to the side of the lower extension plate.

[0013] The present invention is further configured as follows: an extension rod is fixed to the peripheral side surface of the second pin shaft, and a contact ball is fixed to the end of the extension rod.

[0014] A partition is fixed inside the heat exchange shell, and a groove adapted to the contact ball is opened on the side of the partition.

[0015] The present invention is further configured such that: first connecting flanges are fixed to both ends of the heat exchange shell.

[0016] The sealing member includes a second connecting flange sealed with a first connecting flange, a first semicircular cover is fixed to the end of the second connecting flange, and a plurality of first plug-in blocks respectively plugged into the inside of the rectangular slots are fixed to the other end face of the second connecting flange.

[0017] The present invention is further configured as follows: the water flow component includes an end member connected and fixed to the other end portion of the pipe body and an acceleration member rotatably engaged with the end member.

[0018] The end component includes a third connecting flange sealed with another first connecting flange, a second semicircular cover is fixed to the end of the third connecting flange, a partition plate is fixed to the inner wall of the second semicircular cover, and the third connecting flange is fixed with a plurality of second plug-in blocks respectively plugged into the inside of the rectangular slots relative to the other end face.

[0019] A sealing groove which is sealed and connected to the dividing plate is provided at a center position of a side surface of the blocking plate.

[0020] The present invention is further configured as follows: an outer wall of the second semicircular cover is located above the dividing plate and is connected to a water inlet pipe; an inner wall of the second semicircular cover is fixed with a U-shaped seat connected to the water inlet pipe.

[0021] The inner wall of the U-shaped seat is rotatably matched with a rotating shaft, a plurality of water wheels are fixed on the peripheral side of the rotating shaft, and the outer peripheral side of the second semicircular cover is located below the dividing plate and is connected to a water outlet pipe.

[0022] The present invention is further configured as follows: a rotating wheel is fixed to the end of the rotating shaft outside the U-shaped seat, a third pin is fixed to the end of the rotating wheel at an eccentric position, a pin arm is rotatably engaged on the circumferential side of the third pin, and a pin hole is opened through the side of the pin arm.

[0023] An end portion of the blocking plate is located above the sealing groove and is penetrated by a rotation hole.

[0024] The present invention is further configured such that: the acceleration member includes a rotating shaft rotatably engaged in the rotating hole, and a plurality of rotating fans are fixed on the circumferential side of the rotating shaft inside the heat exchange shell.

[0025] A turntable is fixed at the end of the rotating shaft, and a fourth pin shaft rotatably matched with the pin shaft hole is fixed at an eccentric position of the turntable.

[0026] The advantages of the present invention are: 1. The discharge port opened through the inner wall of the sealing ring and the feed end of the discharge pipe gradually tend to overlap, and the buoyancy principle is used to replace the original solenoid valve to control the outflow of liquid, thereby increasing the temporary storage time of the hot fluid inside the heat exchange shell and improving the heat exchange time between the cold fluid and the hot fluid. While increasing the heat exchange effect between the cold fluid and the hot fluid, the buoyancy of the hot fluid is used to control the outflow of the hot fluid, which has an energy-saving effect to a certain extent and avoids the low heat exchange effect caused by too short heat exchange time.

[0027] 2. In the present invention, during the process of introducing the cold fluid, a plurality of water wheels generate a continuous rotational force, causing the rotating wheel to rotate, thereby driving the pin arm that rotates between the third pin shaft and the fourth pin shaft to repeatedly lift and pull at a certain angle, so that a plurality of rotating fans fixed on the side surface of the rotating shaft inside the heat exchange shell synchronously rotate back and forth within a certain angle range inside the heat exchange shell, thereby accelerating the water flow rate of the hot fluid inside the heat exchange shell to a certain extent, and improving the heat exchange effect between the cold fluid and the hot fluid. During the whole process, the heat exchange efficiency between the cold fluid and the hot fluid can be increased only through the fluidity of the fluid, which has an energy-saving effect to a certain extent without adding an additional power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of an energy-saving tubular heat exchanger of the present invention.

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of an energy-saving tubular heat exchanger of the present invention.

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the pipe body assembly of the present invention.

[0031] Figure 4 It is a front view of the cross-sectional structure of the pipe body assembly of the present invention.

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the water flow component of the present invention.

[0033] Figure 6 It is a schematic diagram of the cross-sectional structure of the pipe body of the present invention.

[0034] Figure 7 It is a schematic diagram of the cross-sectional structure of the pipe body of the present invention at another angle.

[0035] Figure 8 It is a front view of the cross-sectional structure of the pipe body of the present invention.

[0036] Figure 9 Schematic diagram of the structure of the blocking member of the present invention.

[0037] Figure 10 Schematic diagram of the structure of the ring member of the present invention.

[0038] Figure 11 It is a schematic diagram of the cross-sectional structure of the end component of the present invention.

[0039] Figure 12 This is a schematic diagram of the cross-sectional structure of the end component of the present invention at another angle.

[0040] Figure 13 It is a structural schematic diagram of the acceleration component of the present invention.

[0041] In the figure: 1. pipe body assembly; 2. water flow assembly; 3. pipe body member; 4. sealing member; 5. annular member; 6. end member; 7. acceleration member; 301. heat exchange shell; 302. rectangular slot; 303. sealing plate; 304. first U-shaped heat exchange tube; 305. second U-shaped heat exchange tube; 306. third U-shaped heat exchange tube; 307. side plate; 308. U-shaped vertical plate; 309. vertical groove; 310. displacement plate; 311. extension plate; 312. buoyancy ball; 313. first pin shaft; 314. rotating arm; 315. top plate; 316. elastic spring; 317. positioning cylinder; 318. guide rod; 319. feed pipe; 320. discharge pipe; 321. annular rail; 322. partition; 323. groove; 324 , first connecting flange; 325, sealing groove; 326, rotating hole; 401, second connecting flange; 402, first semicircular cover; 403, first plug-in block; 501, sealing ring; 502, discharge port; 503, lower extension plate; 504, second pin; 505, extension rod; 506, contact ball; 601, third connecting flange; 602, second semicircular cover; 603, dividing plate; 604, second plug-in block; 605, water inlet pipe; 606, U-shaped seat; 607, rotating shaft; 608, water wheel; 609, water outlet pipe; 610, rotating wheel; 611, third pin; 612, pin arm; 613, pin hole; 701, rotating shaft; 702, rotating fan; 703, turntable; 704, fourth pin. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0044] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0045] For example 1, please refer to Figure 1-13 , the present invention provides the following technical solutions:

[0046] An energy-saving tubular heat exchanger, specifically, includes a tube body assembly 1, the end of the tube body assembly 1 is threadedly connected to a water flow assembly 2; the tube body assembly 1 includes a tube body part 3, a blocking part 4 connected and fixed to one end of the tube body part 3, and a ring part 5 rotatably fitted inside the tube body part 3; the tube body part 3 includes a heat exchange shell 301, and the heat exchange shell 301 has a plurality of rectangular slots 302 on both opposite end surfaces, and a blocking plate 303 is fixed and inserted into the plurality of rectangular slots 302. A plurality of first U-shaped heat exchange tubes 304 are arranged between the two blocking plates 303, and a second U-shaped heat exchange tube 305 and a third U-shaped heat exchange tube 306 are arranged between the two blocking plates 303. 06. A side plate 307 is fixed to the inner wall of the heat exchange shell 301. A U-shaped vertical plate 308 is fixed to the side of the side plate 307. Two symmetrical vertical grooves 309 are opened on the side of the U-shaped vertical plate 308. A displacement plate 310 is slidably fitted between the two vertical grooves 309. An extension plate 311 is fixed to one side of the displacement plate 310. A buoyancy ball 312 is fixed to the side of the extension plate 311. A first pin 313 is fixed to the other side of the displacement plate 310. A rotating arm 314 that rotates around the side of the first pin 313 and rotates with the annular member 5. A top plate 315 is fixed to the side of the U-shaped vertical plate 308 near the top. An elastic spring 316 is fixed between the top plate 315 and the extension plate 311.

[0047] Furthermore, the outer peripheral side surface of the heat exchange shell 301 is connected to a positioning cylinder 317 located above the top plate 315, and a guide rod 318 is fixed on the top of the positioning cylinder 317, which passes through and slides on the top plate 315 and the extension plate 311 in sequence; the outer wall of the heat exchange shell 301 is connected to a feed pipe 319, and the outer peripheral side surface of the heat exchange shell 301 is connected to a discharge pipe 320, and the inner wall of the heat exchange shell 301 is located above the discharge pipe 320 and fixed with two annular rails 321; the annular member 5 includes a sealing ring 501 that is rotatably fitted between the two annular rails 321, and a discharge port 502 is opened through the inner wall of the sealing ring 501, and a lower extension plate 503 is fixed to the inner wall of the sealing ring 501 above the discharge port 502, and a second pin shaft 504 that is rotatably fitted on the rotating arm 314 is fixed to the side of the lower extension plate 503.

[0048] The specific application of the first embodiment is as follows: during the use of the entire heat exchanger, the hot fluid enters the heat exchange shell 301 through the feed pipe 319 for temporary storage during the heat exchange process. Later, as the hot fluid inside the heat exchange shell 301 rises, the buoyancy ball 312 inside the heat exchange shell 301 gradually rises with its own buoyancy (the buoyancy of the buoyancy ball 312 is sufficient to make the sealing ring 501 rotate circumferentially between the two annular rails 321, and the buoyancy ball 312 is made of high-temperature resistant material) (in the process of the buoyancy ball 312 floating up, the elastic spring 316 fixedly connected between the top plate 315 and the extension plate 311 is compressed (the elastic stiffness of the elastic spring 316 is less than the buoyancy of the buoyancy ball 312). , which facilitates the buoyancy ball 312 to float up in the hot fluid while compressing the elastic spring 316, and at the same time facilitates the buoyancy ball 312 to float down in the later period), and facilitates the buoyancy ball 312 to float down in the later period when heat exchange is not needed, and the elastic recovery force of the elastic spring 316 drives the sealing ring 501 to rotate in the opposite circumferential direction between the two annular rails 321, so that the discharge port 502 and the feed end of the discharge pipe 320 are in a misaligned state. The thermal expansion coefficient of the sealing ring 501 is large enough to ensure that it will not expand in an environment with a high temperature difference, and avoid the sealing ring 501 from getting stuck when rotating between the two annular rails 321. The sealing material of the sealing ring 501 has high wear resistance, and the sealing ring 501 rotates circumferentially between the two annular rails 321. The movement process will not cause wear to the sealing ring 501, such as the sealing ring 501 is made of a metal alloy), and thereby drives the extension plate 311 and the displacement plate 310 that are slidably matched between the guide rod 318 and the two vertical grooves 309 to move upward synchronously. At this time, the rotating arm 314 that is rotatably matched between the first pin 313 and the second pin 504 is driven to rotate (when the sealing ring 501 between the two annular rails 321 rotates circumferentially synchronously, the extension rod 505 fixed on the side surface of the second pin 504 and the contact ball 506 fixed on the end of the extension rod 505 will gradually fit each other with the groove 323 until the buoyancy ball 312 floats to the set height and the contact ball 506 is stuck in the groove 323. At this time, the buoyancy ball 312 floats to the set height and the contact ball 506 is stuck in the groove 323. The material port 502 and the discharge pipe 320 are completely in a state of overlap, and the circumferential rotation process of the sealing ring 501 between the two annular rails 321 stops. The sealing material of the sealing ring 501 has high wear resistance, and the circumferential rotation process of the sealing ring 501 between the two annular rails 321 will not cause wear to the sealing ring 501), so that the sealing ring 501 rotating between the two annular rails 321 rotates synchronously circumferentially until the material port 502 opened through the inner wall of the sealing ring 501 begins to gradually overlap with the feed end of the discharge pipe 320. In this way, the buoyancy principle is used to replace the original solenoid valve to control the outflow of liquid, thereby increasing the temporary storage time of the hot fluid inside the heat exchange shell 301 and improving the heat exchange time between the cold fluid and the hot fluid.While increasing the heat exchange effect between the cold fluid and the hot fluid, the buoyancy of the hot fluid is used to control the outflow of the hot fluid, which, to a certain extent, achieves energy-saving effects and avoids the problem of low heat exchange effect caused by too short heat exchange time.

[0049] For example 2, please refer to Figure 1-13 The second embodiment is improved upon the first embodiment as follows: specifically, an extension rod 505 is fixed to the side surface of the second pin 504, and a contact ball 506 is fixed to the end of the extension rod 505; a partition 322 is fixed to the interior of the heat exchange housing 301, and a groove 323 is formed on the side surface of the partition 322 to fit the contact ball 506; a first connecting flange 324 is fixed to both ends of the heat exchange housing 301; the blocking member 4 includes a second connecting flange 401 sealingly connected to the first connecting flange 324, a first semicircular cover 402 is fixed to the end of the second connecting flange 401, and a plurality of first plug-in blocks 403 are fixed to the other end surface of the second connecting flange 401, which are respectively plugged into the rectangular slots 302; The water flow component 2 includes an end component 6 connected and fixed to the other end of the pipe body 3 and an acceleration component 7 rotatably fitted on the end component 6; the end component 6 includes a third connecting flange 601 sealedly connected to the other first connecting flange 324, a second semicircular cover 602 is fixed to the end of the third connecting flange 601, a partition plate 603 is fixed to the inner wall of the second semicircular cover 602, and a plurality of second plug-in blocks 604 respectively plugged into the inside of the rectangular slot 302 are fixed to the other end face of the third connecting flange 601; a sealing groove 325 sealedly connected to the partition plate 603 is opened at a side of the blocking plate 303 at an offset center position; the outer wall of the second semicircular cover 602 is connected to the water inlet pipe 605 above the partition plate 603, and the inner wall of the second semicircular cover 602 is fixed with a U-shaped seat 606 connected to the water inlet pipe 605; the inner wall of the U-shaped seat 606 is rotatably fitted with a rotating shaft 607, Several water wheels 608 are fixed on the side of the rotating shaft 607, and the outer side of the second semicircular cover 602 is located below the dividing plate 603 and is connected to the water outlet pipe 609; the end of the rotating shaft 607 is located outside the U-shaped seat 606 and a rotating wheel 610 is fixed, and a third pin shaft 611 is fixed to the end of the rotating wheel 610 at a position eccentric to the center, and a pin shaft arm 612 is rotatably engaged with the side of the third pin shaft 611, and a pin shaft hole 613 is penetrated through the side of the pin shaft arm 612; a rotating hole 326 is penetrated through the end of a blocking plate 303 located above the sealing groove 325; the accelerator 7 includes a rotating shaft 701 that is rotatably engaged in the rotating hole 326, and a plurality of rotating fans 702 are fixed on the side of the rotating shaft 701 inside the heat exchange shell 301; a turntable 703 is fixed to the end of the rotating shaft 701, and a fourth pin shaft 704 that is rotatably engaged with the pin shaft hole 613 is fixed to the turntable 703 at a position eccentric to the center.

[0050] The specific application of the second embodiment is as follows: when the energy-saving heat exchanger is exchanging heat, the hot fluid enters the heat exchange shell 301 through the feed pipe 319 and is then temporarily stored in the heat exchange shell 301. As the storage amount of the hot fluid increases, it is eventually discharged through the discharge pipe 320, and the cold fluid enters the second semicircular cover 602 through the water inlet pipe 605 and is temporarily stored in the upper area of ​​the dividing plate 603. At this time, as the hot fluid and the cold fluid pass through the process, when the cold fluid enters the upper area of ​​the dividing plate 603 through the water inlet pipe 605, the cold fluid temporarily stored in the upper area will gradually pass through in sequence. The water passes through the inlet ends of the first U-shaped heat exchange tube 304, the second U-shaped heat exchange tube 305, and the third U-shaped heat exchange tube 306, and flows toward the inner area of ​​the heat exchange shell 301 in sequence. Finally, after the heat exchange process in the heat exchange shell 301, the water enters the area below the dividing plate 603 from the outlet ends of the first U-shaped heat exchange tube 304, the second U-shaped heat exchange tube 305, and the third U-shaped heat exchange tube 306, and is finally discharged from the outlet pipe 609, thereby completing the heat exchange process in the whole process.

[0051] When the cold fluid enters the upper area of ​​the dividing plate 603 through the water inlet pipe 605, it generates a continuous rotational force on the water wheels 608 fixedly connected to the side surfaces of the rotating shaft 607 as the cold fluid flows in, so that the rotating wheel 610 fixedly connected to the end of the rotating shaft 607 rotates synchronously, thereby causing the pin arm 612 rotating between the third pin shaft 611 and the fourth pin shaft 704 to perform a repeated lifting action at a certain angle (the pin arm 612 converts the continuous rotation of the rotating wheel 610 into the swing of the turntable 703, driving the rotating fan 702 to swing back and forth in the heat exchange shell 301), and finally The terminal belt rotates in conjunction with the rotating shaft 701 inside the rotating hole 326 to reciprocate within a certain angular range, so that the several rotating fans 702 fixed on the side surfaces of the rotating shaft 701 inside the heat exchange shell 301 synchronously rotate back and forth within a certain angular range inside the heat exchange shell 301, thereby accelerating the water flow rate of the hot fluid inside the heat exchange shell 301 to a certain extent, and improving the heat exchange effect between the cold fluid and the hot fluid. During the whole process, the heat exchange efficiency between the cold fluid and the hot fluid can be increased only through the fluidity of the fluid, which has an energy-saving effect to a certain extent without the need to add an additional power source.

[0052] Obviously, the embodiments described above 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 making creative efforts should fall within the scope of protection of the present invention.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0055] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0056] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An energy-saving tubular heat exchanger, comprising a tube assembly (1), characterized in that: The end of the pipe body component (1) is threadedly connected to a water flow component (2); The pipe body assembly (1) comprises a pipe body part (3), a blocking part (4) connected and fixed to one end of the pipe body part (3), and an annular part (5) rotatably fitted inside the pipe body part (3); The tube body (3) comprises a heat exchange shell (301), and the heat exchange shell (301) is provided with a plurality of rectangular slots (302) on both opposite end surfaces, and a blocking plate (303) is fixedly inserted into each of the rectangular slots (302), and a plurality of first U-shaped heat exchange tubes (304) are arranged through and in communication between the two blocking plates (303), and a second U-shaped heat exchange tube (305) and a third U-shaped heat exchange tube (306) are arranged through and in communication between the two blocking plates (303), respectively, and a side plate (307) is fixed to the inner wall of the heat exchange shell (301), and a U-shaped vertical plate (308) is fixed to the side of the side plate (307), and the U-shaped vertical plate (308) is fixed to the side of the side plate (307). ) is provided with two symmetrical vertical grooves (309) on the side, a displacement plate (310) is slidably fitted between the two vertical grooves (309), an extension plate (311) is fixed to one side of the displacement plate (310), a buoyancy ball (312) is fixed to the side of the extension plate (311), a first pin shaft (313) is fixed to the other side of the displacement plate (310), a rotating arm (314) that is rotatably fitted with the annular member (5) is rotatably fitted around the side of the first pin shaft (313), a top plate (315) is fixed to the side of the U-shaped vertical plate (308) near the top, and an elastic spring (316) is fixed between the top plate (315) and the extension plate (311); The outer peripheral side surface of the heat exchange shell (301) is located above the top plate (315) and is connected to a positioning cylinder (317). A guide rod (318) is fixed to the top of the positioning cylinder (317) and is sequentially passed through and slidably engaged with the top plate (315) and the extension plate (311). The outer wall of the heat exchange shell (301) is connected to a feed pipe (319), the outer peripheral side of the heat exchange shell (301) is connected to a discharge pipe (320), and two annular rails (321) are fixed on the inner wall of the heat exchange shell (301) above the discharge pipe (320); The annular member (5) includes a sealing ring (501) rotatably engaged between the two annular rails (321); a discharge port (502) is formed through the inner wall of the sealing ring (501); a lower extension plate (503) is fixed to the inner wall of the sealing ring (501) above the discharge port (502); and a second pin shaft (504) rotatably engaged with the rotating arm (314) is fixed to the side of the lower extension plate (503); An extension rod (505) is fixed to the side surface of the second pin shaft (504), and a contact ball (506) is fixed to the end of the extension rod (505); A partition (322) is fixed inside the heat exchange shell (301), and a groove (323) adapted to the contact ball (506) is provided on a side surface of the partition (322).

2. The energy-saving tubular heat exchanger according to claim 1, characterized in that: First connecting flanges (324) are fixed to both ends of the heat exchange shell (301); The blocking member (4) includes a second connecting flange (401) sealedly connected to a first connecting flange (324), a first semicircular cover (402) being fixed to an end of the second connecting flange (401), and a plurality of first plug-in blocks (403) respectively plugged into the interior of the rectangular slots (302) being fixed to the other end face of the second connecting flange (401).

3. The energy-saving tubular heat exchanger according to claim 2, characterized in that: The water flow component (2) comprises an end member (6) connected and fixed to the other end of the pipe body (3) and an acceleration member (7) rotatably engaged with the end member (6); The end member (6) includes a third connecting flange (601) sealedly connected to another first connecting flange (324); a second semicircular cover (602) is fixed to the end of the third connecting flange (601); a partition plate (603) is fixed to the inner wall of the second semicircular cover (602); and a plurality of second plug-in blocks (604) are fixed to the other end face of the third connecting flange (601) and are respectively plugged into the inside of the rectangular slots (302); A sealing groove (325) is provided at a side portion of the blocking plate (303) at a position offset from the center thereof and is sealed to the dividing plate (603).

4. The energy-saving tubular heat exchanger according to claim 3, characterized in that: The outer wall of the second semicircular cover (602) is located above the dividing plate (603) and is connected to a water inlet pipe (605); the inner wall of the second semicircular cover (602) is fixed with a U-shaped seat (606) connected to the water inlet pipe (605); The inner wall of the U-shaped seat (606) is rotatably engaged with a rotating shaft (607), and a plurality of water wheels (608) are fixed to the peripheral side of the rotating shaft (607). The outer peripheral side of the second semicircular cover (602) is located below the dividing plate (603) and is connected to a water outlet pipe (609).

5. The energy-saving tubular heat exchanger according to claim 4, characterized in that: The end of the rotating shaft (607) is located outside the U-shaped seat (606), and a rotating wheel (610) is fixed thereto. A third pin (611) is fixed to the end of the rotating wheel (610) at a position eccentric to the center. A pin arm (612) is rotatably engaged with the side surface of the third pin (611). A pin hole (613) is formed through the side surface of the pin arm (612). A rotation hole (326) is formed through the end of the sealing plate (303) located above the sealing groove (325).

6. The energy-saving tubular heat exchanger according to claim 5, characterized in that: The acceleration member (7) comprises a rotating shaft (701) rotatably engaged in the rotating hole (326), and a plurality of rotating fans (702) are fixed on the circumferential side of the rotating shaft (701) inside the heat exchange shell (301); A rotating disk (703) is fixed to the end of the rotating shaft (701), and a fourth pin (704) that is rotatably engaged with the pin hole (613) is fixed to an eccentric position of the rotating disk (703).

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