High-efficiency energy-saving tubular heat exchanger
By adjusting the design of the components and drive components, increasing the area of the baffle plate, and using different methods to remove scale, the problem of decreased heat exchange performance caused by scale deposition was solved, achieving a highly efficient and energy-saving heat exchange effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BAODING FUHAN THERMAL EQUIP MFG
- Filing Date
- 2026-04-15
- Publication Date
- 2026-06-05
AI Technical Summary
In existing tubular heat exchangers, when the heat exchange time is prolonged due to the obstruction structure, scale is easily deposited on the surface of the heat exchange tubes, forming a heat insulation layer, which leads to a significant reduction in heat exchange performance and may cause tube wall corrosion.
By employing adjustment and drive components, the blocking area is increased and the heat exchange time is extended through synchronous sliding adjustment of the baffle plate. Furthermore, the cooperation of scraper and inclined block effectively cleans scale and avoids excessive scraping of the outer wall of the heat exchange tube.
It improves fluid barrier effect, extends heat exchange time, maintains high heat exchange efficiency, avoids damage to heat exchange tubes, and is suitable for situations with large fluid temperature differences.
Smart Images
Figure CN122149231A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heat exchange technology, specifically to a high-efficiency and energy-saving tubular heat exchanger. Background Technology
[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid; it is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food, and many other industrial production processes. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, and reboilers, and are widely used.
[0003] For example, a high-efficiency and energy-saving tubular heat exchanger, with announcement number CN222165803U, improves the heat exchange efficiency of the device and increases resource utilization. It includes a heat exchanger, a high-temperature outlet pipe, a high-temperature inlet pipe, a sealing cap, a U-shaped tube, a mounting cap, a low-temperature inlet pipe, a high-temperature inlet pipe, a heat exchange outlet pipe, a heat exchange inlet pipe, and a flow distribution mechanism. A high-temperature outlet pipe is installed at the top of one side of the heat exchanger, and a high-temperature inlet pipe is installed at the bottom of the other side. The sealing cap is rotatably installed inside the shaft cavity at the other end of the heat exchanger. Multiple sets of U-shaped tubes are respectively connected to two sets of through holes adjacent to the sealing cap. The mounting cap is fitted and installed at one end of the heat exchanger. A low-temperature inlet pipe is installed on one side of the mounting cap, and a high-temperature inlet pipe is installed at the bottom of the mounting cap. A heat exchange outlet pipe and a heat exchange inlet pipe are rotatably installed at both ends of the sealing cap, respectively. The flow distribution mechanism is installed inside the working chamber of the mounting cap.
[0004] To maintain the heat exchange efficiency of tubular heat exchangers, internal baffle structures are usually installed to extend the heat exchange time of the fluid inside the heat exchanger. Scale formation is closely related to the operating time of the heat exchanger. As the heat exchange time increases, dissolved salts (such as calcium and magnesium ions), suspended particles, microorganisms, and other substances in the fluid are more likely to deposit and crystallize on the surface of the heat exchange tubes, forming scale or a fouling layer. The thermal conductivity of scale is much lower than that of the outer wall of the metal tube, forming an insulating layer that significantly reduces heat exchange performance and efficiency. Furthermore, scale can easily create a localized corrosive environment, potentially causing perforation of the tube wall and reducing the service life of the heat exchanger. Summary of the Invention
[0005] The purpose of this invention is to provide a high-efficiency and energy-saving tubular heat exchanger to solve the problem that when the heat exchange time is prolonged due to the obstruction structure, it is easier for scale to deposit and crystallize on the surface of the heat exchange tube, forming a scale insulation layer, which significantly reduces the heat exchange performance.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving tubular heat exchanger, comprising an outer shell and a left cover fixedly installed on one side of the outer shell, and a right cover fixedly connected to the other side of the outer shell; Also includes: Both ends of the outer shell are fixedly connected to a fixing plate, and heat exchange tubes are fixedly installed horizontally and parallel inside the fixing plate. An adjustment component is provided inside the outer shell, and a drive component is provided inside the right cover. The adjustment assembly includes an adjustment cover rotatably connected to the outer shell and a fitting cover rotatably and sealingly installed with the adjustment cover. The inner wall of the adjustment cover is symmetrically fixedly equipped with arc-shaped sleeve plates, and a blocking plate is slidably installed inside the arc-shaped sleeve plates. An outer sleeve is fitted onto the outside of the heat exchange tube. Scrapers are uniformly fixed to the inner wall of the outer sleeve. A cleaning rod is slidably installed laterally inside the outer sleeve via an auxiliary spring. An inclined block is slidably installed vertically inside the cleaning rod.
[0007] Preferably, the two ends of the heat exchange tube are fixedly connected to the fixed plates on both sides by fixing strips, the fixing ring is rotatably connected to the fitting cover, the inner wall of the adjusting cover is fixedly connected to the rotating ring, the inner wall of the outer shell is fixedly connected to the annular cover, the side of the adjusting cover near the annular cover is fixedly connected to the internal gear ring, the internal gear ring is located inside the annular cover, the side of the annular cover away from the rotating ring is rotatably connected to the stainless steel screw, and the inner wall of the outer shell is also rotatably installed with a fixing ring, the fixing ring being fixedly connected to the fitting cover by a connecting rod.
[0008] By adopting the above technical solution, multiple baffles can be adjusted synchronously, thereby increasing the blocking area of the baffles and improving the blocking effect on the fluid, extending the heat exchange time and heat exchange effect. The fixing ring will also drive the arc-shaped plate to rotate, and the arc-shaped plate will squeeze out the cleaning rod, thereby increasing the number of scraped oblique blocks and improving the scale cleaning effect on the outer wall of the heat exchange tube.
[0009] Preferably, one end of the stainless steel lead screw is fixedly connected to an adjusting gear, the adjusting gear is located inside the annular cover, the internal gear ring is meshed with the adjusting gear, the inner bottom surface of the arc-shaped sleeve is fixedly connected to a sliding rod, the blocking plate is slidably connected to the sliding rod, and a spring is sleeved on the outer side of the sliding rod.
[0010] By adopting the above technical solution, the inclined plate slides into the arc-shaped sleeve and squeezes the bottom of the blocking plate, causing the blocking plate to rise. The blocking plate tension spring slides on the outside of the slide rod, thereby increasing the blocking area of the blocking plate.
[0011] Preferably, the bottom end of the first spring is fixedly connected to the arc-shaped sleeve plate, the top end of the first spring is fixedly connected to the blocking plate, the outer side of the stainless steel screw is threaded with a sleeve, and the side of the sleeve near the arc-shaped sleeve plate is fixedly connected with an inclined plate. The inclined plate is slidably connected to the arc-shaped sleeve plate, and the inclined surface of the inclined plate abuts against the bottom of the blocking plate.
[0012] By adopting the above technical solution, the inclined plate slides into the arc-shaped sleeve, which will squeeze the bottom of the blocking plate, thereby adjusting the blocking area of the blocking plate.
[0013] Preferably, the inner ring of the fixing ring is fixedly connected to an inner ring body, and a push block is symmetrically fixedly connected to one side of the inner ring body. The outer sleeve is rotatably connected to the fixing plate, and an outer ring body is rotatably connected to the outer side of the outer sleeve. A vertical strip is fixedly connected to the top of the outer ring body, and the vertical strip is in contact with the push block. An arc-shaped piece is fixedly connected to the inner wall of the outer ring body, and a torsion spring is fixedly installed between the arc-shaped piece and the inner wall of the outer sleeve.
[0014] By adopting the above technical solution, the fixed ring will also drive the inner ring body and multiple push blocks to rotate. The push blocks push the vertical bar, causing multiple outer ring bodies to rotate on the outside of the outer sleeve. The outer ring bodies act on the torsion spring, which facilitates the subsequent rotation and reset of the outer ring bodies.
[0015] Preferably, a square groove is provided in the middle of the bottom of the outer sleeve, an inclined surface is provided at one end of the cleaning rod near the arc-shaped piece, and a sliding groove is uniformly provided at the bottom of the cleaning rod. A second spring is fixedly connected inside the sliding groove, and the bottom of the second spring is fixedly connected to the inclined block.
[0016] By adopting the above technical solution, the curved plate squeezes the inclined surface of the cleaning rod, causing the cleaning rod to slide inside the outer tube. The elastic force of the second spring will also cause the inclined block to pop out, which facilitates the subsequent scraping and cleaning of the outside of the heat exchange tube by the scraper and the inclined block.
[0017] Preferably, the drive assembly includes a sealing cover fixedly connected to the right-side fixing plate, the sealing cover being located inside the right cover body, a toothed ring portion being fixedly connected to the outer side of the outer sleeve near the right cover body, and a fitting ring being rotatably connected to the outer side of the right cover body.
[0018] By adopting the above technical solution, the operator can rotate the fitting ring to facilitate the synchronous rotation of multiple outer sleeves.
[0019] Preferably, an inner rod is fixedly connected to the inner wall of the fitting ring, and a drive gear is fixedly connected to the inner rod through the sealing cover. The inner rod is rotatably connected to the sealing cover, and the drive gear is meshed with the surrounding gear ring.
[0020] By adopting the above technical solution, the bonding ring drives the inner rod to rotate, the inner rod drives the drive gear to rotate, the drive gear drives multiple gear rings to rotate synchronously, and the gear rings then drive the outer sleeve to rotate reciprocally.
[0021] Preferably, an inlet pipe is fixedly installed on one side of the top of the outer casing, and a drain pipe is fixedly installed on one side of the bottom of the outer casing. Both the inlet pipe and the drain pipe are connected to the interior of the outer casing.
[0022] By adopting the above technical solution, the high-temperature fluid enters the heat exchange tube from the left cover and exits from the right cover, while the external low-temperature fluid enters the outer shell from the inlet pipe and exits from the outlet pipe, and heat exchange is completed during the flow.
[0023] Compared with the prior art, the beneficial effects of this invention are as follows: By setting an adjustment component, and utilizing the cooperation of a fixed ring, a rotating ring, and an outer sleeve, multiple baffles can be adjusted synchronously, increasing the blocking area of the baffles and thus improving the blocking effect on the fluid, extending the heat exchange time and heat exchange efficiency. The fixed ring also drives the arc-shaped plate to rotate, which in turn squeezes out the cleaning rod, thereby increasing the number of scraped oblique pieces and improving the scale removal effect on the outer wall of the heat exchange tube. This avoids excessive scraping of the outer wall of the heat exchange tube, preventing damage to the heat exchange tube, while maintaining a high scale removal effect. It is suitable for use when the internal fluid temperature difference of the heat exchanger is large, maintaining the high heat exchange efficiency of the heat exchanger. The specific details are as follows: 1. By setting up an adjustment component, high-temperature fluid enters the heat exchange tube from the left cover and exits from the right cover, while external low-temperature fluid enters the outer shell from the inlet pipe and exits from the outlet pipe. Heat exchange is completed during the flow. The limiting device of the fitting cover will not rotate, and a sealing layer is set at the rotation gaps of the outer shell, fitting cover, and adjustment cover. When the temperature difference between the high-temperature and low-temperature fluids is large, the operator rotates the fixing ring clockwise. The fixing ring drives the adjustment cover to rotate, which in turn drives the rotating ring and internal gear ring to rotate. The internal gear ring drives the adjustment gear to rotate, which in turn drives the stainless steel screw to rotate. The rotation of the stainless steel screw will move the sleeve and the inclined plate. The inclined plate slides into the arc-shaped sleeve and presses the bottom of the baffle plate, causing the baffle plate to rise. The baffle plate tension spring slides on the outside of the slide rod, increasing the blocking area of the baffle plate and thus improving the blocking effect on the fluid. Extending heat exchange time and heat exchange effect, the fixed ring also drives the inner ring body and multiple push blocks to rotate. The push blocks push the vertical bars, causing multiple outer ring bodies to rotate on the outside of the outer sleeve. The outer ring body acts on the torsion spring, which facilitates the subsequent rotation and reset of the outer ring body. The outer ring body drives the arc plate to rotate, and the arc plate squeezes the inclined surface of the cleaning rod, causing the cleaning rod to slide inside the outer sleeve. The elastic force of the second spring also causes the inclined block to pop out. The inclined block and the scraper are set at intervals. The heat exchange tube contacts the fluid inside the outer sleeve for heat exchange through the square groove. The outer sleeve is made of thermally conductive material. Initially, only the scraper rotates and scrapes. After adjustment, it works with the popped-out inclined block to efficiently scrape and clean scale. It will not scrape the outer wall of the heat exchange tube too much, causing damage to the heat exchange tube, and can maintain a high scale cleaning effect. It is suitable for use when the internal fluid temperature difference of the heat exchanger is large, and maintains the high heat exchange efficiency of the heat exchanger. 2. By setting up the drive assembly, the operator can rotate the bonding ring back and forth in small increments, first counterclockwise and then clockwise. During the counterclockwise rotation, the push block blocks the vertical bar and the outer ring body, keeping the outer ring body stationary while allowing the outer sleeve to rotate. This does not affect the position of the fixed ring. The bonding ring drives the inner rod to rotate, which in turn drives the drive gear to rotate. The drive gear drives multiple gear rings to rotate synchronously, which in turn drives the outer sleeve to rotate back and forth. The outer sleeve then drives the scraper and the inclined block to rotate, thus facilitating the rotational scraping and cleaning of the outer side of the heat exchange tube. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the regulating cover structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic cross-sectional view of the outer shell of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the barrier plate structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C; Figure 8 This is a schematic diagram of the outer tube structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point D; Figure 10 This is a schematic diagram of the torsion spring structure of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point E; Figure 12 This is a schematic cross-sectional view of the cleaning rod of the present invention; Figure 13 This is a schematic cross-sectional view of the right cover of the present invention; Figure 14 For the present invention Figure 13 Enlarged structural diagram at point F.
[0025] In the diagram: 1. Outer shell; 2. Left cover; 3. Right cover; 4. Fixing plate; 5. Heat exchange tube; 6. Adjusting assembly; 61. Adjusting cover; 62. Fitting cover; 63. Rotating ring; 64. Internal gear ring; 65. Annular cover; 66. Stainless steel screw; 67. Adjusting gear; 68. Arc-shaped sleeve; 69. Slide rod; 610. Baffle plate; 611. Spring 1; 612. Sleeve; 613. Inclined plate; 614. Fixing ring; 615. 616. Inner ring body; 617. Push block; 618. Outer sleeve; 619. Outer ring body; 620. Vertical bar; 621. Arc-shaped piece; 622. Torsion spring; 623. Scraper; 624. Square groove; 625. Cleaning rod; 626. Slide groove; 627. Spring II; 628. Inclined block; 71. Drive assembly; 72. Sealing cover; 73. Gear ring; 74. Fitting ring; 75. Inner rod; 76. Drive gear; 8. Liquid inlet pipe; 9. Liquid outlet pipe. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a high-efficiency and energy-saving tubular heat exchanger, including an outer shell 1 and a left cover 2 fixedly installed on one side of the outer shell 1, and a right cover 3 fixedly connected to the other side of the outer shell 1.
[0028] Both ends of the outer casing 1 are fixedly connected to a fixing plate 4, and heat exchange tubes 5 are fixedly installed horizontally and parallel inside the fixing plate 4.
[0029] like Figure 1 and Figure 4 - Figure 12 As shown, an adjustment assembly 6 is provided inside the outer shell 1. The adjustment assembly 6 includes an adjustment cover 61 rotatably connected to the outer shell 1 and a fitting cover 62 rotatably and sealingly installed with the adjustment cover 61. An arc-shaped sleeve plate 68 is symmetrically fixedly installed on the inner wall of the adjustment cover 61, and a baffle plate 610 is slidably installed inside the arc-shaped sleeve plate 68.
[0030] The two ends of the heat exchange tube 5 are fixedly connected to the fixed plates 4 on both sides by fixing strips. The fixing ring 614 is rotatably connected to the fitting cover 62. The inner wall of the adjusting cover 61 is fixedly connected to the rotating ring 63. A sealing layer is provided at the rotation gap of the outer shell 1, the fitting cover 62 and the adjusting cover 61 to keep the connection sealed.
[0031] An annular cover 65 is fixedly connected to the inner wall of the outer shell 1. An internal gear ring 64 is fixedly connected to the side of the adjusting cover 61 near the annular cover 65. The internal gear ring 64 is located inside the annular cover 65. A stainless steel screw rod 66 is rotatably connected to the side of the annular cover 65 away from the rotating ring 63. A fixing ring 614 is also rotatably installed inside the outer shell 1. The fixing ring 614 is fixedly connected to the fitting cover 62 through a connecting rod, so that the fixing ring 614 and the fitting cover 62 rotate synchronously.
[0032] One end of the stainless steel lead screw 66 is fixedly connected to an adjusting gear 67. The stainless steel material of the lead screw 66 can reduce the corrosion damage caused by fluid. The adjusting gear 67 is located inside the annular cover 65. The internal gear ring 64 is meshed with the adjusting gear 67. The rotating ring 63 is tightly fitted with the annular cover 65 to reduce the corrosion damage of the internal gear ring 64 and the adjusting gear 67 caused by fluid. The inner bottom surface of the arc-shaped sleeve plate 68 is fixedly connected to a slide rod 69. The baffle plate 610 is slidably connected to the slide rod 69. A spring 611 is sleeved on the outer side of the slide rod 69.
[0033] The bottom end of spring 611 is fixedly connected to the arc-shaped sleeve 68, and the top end of spring 611 is fixedly connected to the baffle plate 610. The outer side of the stainless steel screw 66 is threaded with a sleeve 612. A sloping plate 613 is fixedly connected to the side of the sleeve 612 near the arc-shaped sleeve 68. The sloping plate 613 is slidably connected to the arc-shaped sleeve 68. The inclined surface of the sloping plate 613 abuts against the bottom of the baffle plate 610. The sloping plate 613 fits into the fitting groove opened on the arc-shaped sleeve 68 to reduce the fluid entering the interior of the arc-shaped sleeve 68.
[0034] The inner ring of the fixed ring 614 is fixedly connected to the inner ring body 615. A push block 616 is symmetrically fixedly connected to one side of the inner ring body 615. An outer sleeve 617 is sleeved on the outside of the heat exchange tube 5. The outer sleeve 617 is rotatably connected to the fixed plate 4. An outer ring body 618 is rotatably connected to the outside of the outer sleeve 617. A vertical bar 619 is fixedly connected to the top of the outer ring body 618. The vertical bar 619 fits against the push block 616. An arc-shaped piece 620 is fixedly connected to the inner wall of the outer ring body 618. A torsion spring 621 is fixedly installed between the arc-shaped piece 620 and the inner wall of the outer sleeve 617. The torsion spring 621 facilitates the subsequent rotation and reset of the outer ring body 618.
[0035] Scraper blocks 622 are evenly fixedly connected to the inner wall of the outer sleeve 617. A cleaning rod 624 is horizontally slidably installed inside the outer sleeve 617 via an auxiliary spring. The auxiliary spring is located inside the outer sleeve 617 and close to the right cover 3. An inclined block 627 is vertically slidably installed inside the cleaning rod 624.
[0036] The bottom of the outer tube 617 has a square groove 623 in the middle. The cleaning rod 624 has a bevel near the end of the arc-shaped piece 620. The bottom of the cleaning rod 624 has evenly spaced grooves 625. A second spring 626 is fixedly connected inside the groove 625. The bottom of the second spring 626 is fixedly connected to the inclined block 627.
[0037] An inlet pipe 8 is fixedly installed on one side of the top of the outer casing 1, and a drain pipe 9 is fixedly installed on one side of the bottom of the outer casing 1. Both the inlet pipe 8 and the drain pipe 9 are connected to the interior of the outer casing 1.
[0038] Example 1: As Figure 4 - Figure 12 As shown, the high-temperature fluid enters the heat exchange tube 5 from the left cover 2 and exits from the right cover 3, while the external low-temperature fluid enters the outer shell 1 from the inlet pipe 8 and exits from the outlet pipe 9. Heat exchange is completed during the flow. The fitting cover 62 is limited and will not rotate. A sealing layer is provided at the rotation gap of the outer shell 1, the fitting cover 62 and the adjusting cover 61. When the temperature difference between the high-temperature fluid and the low-temperature fluid is large, the operator rotates the fixing ring 614 clockwise. The fixing ring 614 drives the adjusting cover 61 to rotate. The adjusting cover 61 drives the rotating ring 63 and the internal gear ring 64 to rotate. The internal gear ring 64 drives the adjusting gear 67 to rotate. The adjusting gear 67 drives the stainless steel screw 66 to rotate. The rotation of the stainless steel screw 66 will drive the sleeve 612 and the inclined plate 613 to move. The inclined plate 613 slides into the arc-shaped sleeve 68 and squeezes the bottom of the baffle plate 610, causing the baffle plate 610 to rise.
[0039] The baffle plate 610 stretches the spring 611 and slides on the outside of the slide rod 69, increasing the blocking area of the baffle plate 610, thereby improving the blocking effect on the fluid, prolonging the heat exchange time and heat exchange effect. The fixed ring 614 also drives the inner ring body 615 and multiple push blocks 616 to rotate. The push blocks 616 push the vertical bar 619, causing multiple outer ring bodies 618 to rotate on the outside of the outer sleeve 617. The outer ring bodies 618 act on the torsion spring 621, facilitating the subsequent rotation and reset of the outer ring bodies 618. The outer ring bodies 618 drive the arc-shaped plate 620 to rotate. The arc-shaped plate 620 presses against the inclined surface of the cleaning rod 624, causing the cleaning rod 624 to slide inside the outer sleeve 617. The cleaning rod 624 compresses the auxiliary spring, and the elastic force of the second spring 626 will also cause the inclined block 627 to pop out a small distance, so that the inclined block 627 abuts against the heat exchange tube 5. Moreover, the elastic force coefficient of the auxiliary spring is greater than the elastic force coefficient of multiple second springs 626, so when the auxiliary spring drives the cleaning rod 624 to slide back to its original position, it cooperates with the inclined surface of the inclined block 627 to make the inclined block 627 rise and reset a small distance, separating from the heat exchange tube 5.
[0040] The inclined block 627 and the scraper 622 are set at intervals. The heat exchange tube 5 contacts the fluid inside the outer shell 1 for heat exchange through the square groove 623. The outer tube 617 is made of thermally conductive material. Initially, only the scraper 622 rotates and scrapes. After adjustment, it works in conjunction with the pop-out inclined block 627 to efficiently scrape and clean the scale. This method avoids excessive scraping of the outer wall of the heat exchange tube 5, which could damage the heat exchange tube 5, while maintaining a high scale cleaning effect. It is suitable for use when the internal fluid temperature difference of the heat exchanger is large, thus maintaining the high heat exchange efficiency of the heat exchanger.
[0041] like Figure 1 and Figure 13 - Figure 14 As shown, a drive assembly 7 is provided inside the right cover 3. The drive assembly 7 includes a sealing cover 71 that is fixedly connected to the right fixing plate 4. The sealing cover 71 is located inside the right cover 3. A toothed ring portion 72 is fixedly connected to the outer side of the outer sleeve 617 near the right cover 3. A fitting ring 73 is rotatably connected to the outer side of the right cover 3.
[0042] An inner rod 74 is fixedly connected to the inner wall of the fitting ring 73. The inner rod 74 passes through the sealing cover 71 and is fixedly connected to the drive gear 75. The inner rod 74 is rotatably connected to the sealing cover 71, and the drive gear 75 is meshed with the surrounding gear ring 72.
[0043] Example 2: Figure 9 and Figure 13 - Figure 14 As shown, the operator can rotate the fitting ring 73 back and forth slightly, first clockwise and then counterclockwise. During the counterclockwise rotation, the push block 616 blocks the vertical bar 619 and the outer ring body 618, keeping the outer ring body 618 stationary while the outer sleeve 617 can rotate, thus not affecting the position of the fixing ring 614. The fitting ring 73 drives the inner rod 74 to rotate, which in turn drives the drive gear 75 to rotate. The drive gear 75 drives multiple gear rings 72 to rotate synchronously, which in turn drives the outer sleeve 617 to rotate back and forth. The outer sleeve 617 drives the scraper 622 and the inclined block 627 to rotate, thus facilitating the rotational scraping and cleaning of the outer side of the heat exchange tube 5. Multiple sets of parallel scraper blocks 622 and inclined blocks 627 are arranged so that the entire outer side of the heat exchange tube 5 can be scraped and cleaned during the reciprocating rotation.
[0044] Working principle: When using this device, firstly, as... Figure 1 - Figure 14As shown, the operator rotates the fixing ring 614 clockwise, which drives the adjusting cover 61 to rotate. This causes the adjusting gear 67 to drive the stainless steel screw 66 to rotate. The rotation of the stainless steel screw 66 causes the sleeve 612 and the inclined plate 613 to move. The inclined plate 613 slides into the arc-shaped sleeve 68 and presses the bottom of the baffle plate 610, causing the baffle plate 610 to rise. The baffle plate 610 stretches the spring 611 and slides on the outside of the slide rod 69, increasing the blocking area of the baffle plate 610, thereby improving the blocking effect on the fluid, prolonging the heat exchange time and heat exchange effect. The fixing ring 614 also drives the inner ring body 615 and multiple push blocks 616 to rotate, causing the cleaning rod 624 to slide inside the outer sleeve 617. The elastic force of the second spring 626 also causes the inclined block 627 to spring. The inclined block 627 and scraper 622 are spaced apart. After adjustment, they work together with the pop-out inclined block 627 to efficiently scrape and clean scale. This avoids excessive scraping of the outer wall of the heat exchange tube 5, which could damage the heat exchange tube 5, while maintaining a high scale cleaning effect. It is suitable for use when the internal fluid temperature difference of the heat exchanger is large, thus maintaining the high heat exchange efficiency of the heat exchanger. The operator rotates the contact ring 73 back and forth slightly, first clockwise and then counterclockwise. The contact ring 73 drives the inner rod 74 to rotate, which in turn drives the drive gear 75 to rotate. The drive gear 75 drives multiple gear rings 72 to rotate synchronously, which in turn drives the outer sleeve 617 to rotate back and forth. The outer sleeve 617 drives the scraper 622 and inclined block 627 to rotate, thus facilitating the rotational scraping and cleaning of the outer side of the heat exchange tube 5.
[0045] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-efficiency and energy-saving tubular heat exchanger, comprising an outer shell (1) and a left cover (2) fixedly installed on one side of the outer shell (1), and a right cover (3) fixedly connected to the other side of the outer shell (1). Its features are, Also includes: Both ends of the outer shell (1) are fixedly connected to a fixing plate (4), and a heat exchange tube (5) is fixedly installed horizontally and parallel inside the fixing plate (4). An adjustment component (6) is provided inside the outer shell (1), and a drive component (7) is provided inside the right cover (3). The adjustment assembly (6) includes an adjustment cover (61) rotatably connected to the outer shell (1) and a fitting cover (62) rotatably and sealingly installed with the adjustment cover (61). An arc-shaped sleeve plate (68) is symmetrically fixedly installed on the inner wall of the adjustment cover (61), and a baffle plate (610) is slidably installed inside the arc-shaped sleeve plate (68). The heat exchange tube (5) is fitted with an outer sleeve (617), and scraper blocks (622) are uniformly fixedly connected to the inner wall of the outer sleeve (617). A cleaning rod (624) is slidably installed inside the outer sleeve (617) through an auxiliary spring. An inclined block (627) is slidably installed inside the cleaning rod (624).
2. The high-efficiency energy-saving tubular heat exchanger according to claim 1, characterized in that: The two ends of the heat exchange tube (5) are fixedly connected to the fixed plates (4) on both sides by fixing strips. The fixing ring (614) is rotatably connected to the fitting cover (62). The inner wall of the adjusting cover (61) is fixedly connected to the rotating ring (63). The inner wall of the outer shell (1) is fixedly connected to the annular cover (65). The side of the adjusting cover (61) close to the annular cover (65) is fixedly connected to the internal gear ring (64). The internal gear ring (64) is located inside the annular cover (65). The side of the annular cover (65) away from the rotating ring (63) is rotatably connected to the stainless steel screw rod (66). The inside of the outer shell (1) is also rotatably installed with the fixing ring (614). The fixing ring (614) is fixedly connected to the fitting cover (62) by the connecting rod.
3. The high-efficiency energy-saving tubular heat exchanger according to claim 2, characterized in that: One end of the stainless steel lead screw (66) is fixedly connected to an adjusting gear (67), the adjusting gear (67) is located inside the annular cover (65), the internal gear ring (64) is meshed with the adjusting gear (67), the inner bottom surface of the arc-shaped sleeve plate (68) is fixedly connected to a slide rod (69), the blocking plate (610) is slidably connected to the slide rod (69), and a spring (611) is sleeved on the outer side of the slide rod (69).
4. The high-efficiency energy-saving tubular heat exchanger according to claim 3, characterized in that: The bottom end of the first spring (611) is fixedly connected to the arc-shaped sleeve (68), the top end of the first spring (611) is fixedly connected to the blocking plate (610), the outer side of the stainless steel screw (66) is threaded with a sleeve (612), the side of the sleeve (612) near the arc-shaped sleeve (68) is fixedly connected with an inclined plate (613), the inclined plate (613) is slidably connected to the arc-shaped sleeve (68), and the inclined surface of the inclined plate (613) abuts against the bottom of the blocking plate (610).
5. The high-efficiency energy-saving tubular heat exchanger according to claim 4, characterized in that: The inner ring of the fixed ring (614) is fixedly connected to an inner ring body (615). A push block (616) is symmetrically fixedly connected to one side of the inner ring body (615). The outer sleeve (617) is rotatably connected to the fixed plate (4). An outer ring body (618) is rotatably connected to the outer side of the outer sleeve (617). A vertical strip (619) is fixedly connected to the top of the outer ring body (618). The vertical strip (619) is in contact with the push block (616). An arc-shaped piece (620) is fixedly connected to the inner wall of the outer ring body (618). A torsion spring (621) is fixedly installed between the arc-shaped piece (620) and the inner wall of the outer sleeve (617).
6. The high-efficiency energy-saving tubular heat exchanger according to claim 1, characterized in that: The outer sleeve (617) has a square groove (623) in the middle of its bottom. The cleaning rod (624) has an inclined surface at one end near the arc-shaped piece (620). The bottom of the cleaning rod (624) has a sliding groove (625) evenly distributed. A second spring (626) is fixedly connected inside the sliding groove (625). The bottom of the second spring (626) is fixedly connected to the inclined block (627).
7. The high-efficiency energy-saving tubular heat exchanger according to claim 1, characterized in that: The drive assembly (7) includes a sealing cover (71) fixedly connected to the right fixing plate (4). The sealing cover (71) is located inside the right cover (3). A toothed ring (72) is fixedly connected to the outer side of the outer sleeve (617) near the right cover (3). A fitting ring (73) is rotatably connected to the outer side of the right cover (3).
8. The high-efficiency energy-saving tubular heat exchanger according to claim 7, characterized in that: The inner wall of the fitting ring (73) is fixedly connected to an inner rod (74), the inner rod (74) passes through the sealing cover (71) and is fixedly connected to a drive gear (75), the inner rod (74) is rotatably connected to the sealing cover (71), and the drive gear (75) is meshed with the surrounding gear ring (72).
9. A high-efficiency energy-saving tubular heat exchanger according to claim 1, characterized in that: An inlet pipe (8) is fixedly installed on one side of the top of the outer shell (1), and a drain pipe (9) is fixedly installed on one side of the bottom of the outer shell (1). Both the inlet pipe (8) and the drain pipe (9) are connected to the interior of the outer shell (1).