Anti-scaling heat exchanger

Abstract

The present invention relates to the technical field of heat exchangers, and proposes an anti-scaling heat exchanger, comprising: a plurality of flow-blocking mechanisms equidistantly distributed inside a heat exchange cylinder, and a water injection cleaning mechanism is arranged at one end of a first chamber. The water injection port on the water injection cleaning mechanism is connected to a high-pressure water pipe, and the high-pressure water flow is transported to the first hollow column and the second hollow column through the water injection port, the hollow disk, the L-shaped tube, the hollow roller, and the hose. In this process, the water in the water pipe and the second hollow column will be sprayed out through the first right-angle nozzle and the second right-angle nozzle respectively, so as to push the entire cleaning component to move toward one side of the heat exchange tube, so that the cleaning component can enter the interior of the heat exchange tube and clean and flush the inner wall of the heat exchange tube. At the same time, the cleaning component on the flow-blocking mechanism can clean and flush the outer wall of the heat exchange tube. It is simple to operate and easy to use, and can clean the inner and outer walls of a large number of heat exchange tubes at the same time, and has a high use value.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and in particular to an anti-scaling heat exchanger. Background Art

[0002] At present, various existing heat exchangers used in water-source heat pump systems such as sewage, seawater, and river water, as well as in printing and dyeing, papermaking, petroleum, and heat treatment for heat exchange and waste heat recovery have certain defects. For example, the multiple bundles of heat exchange tubes in the heat exchanger are prone to dirt forming inside. In order to ensure the long-term operation of the process equipment, the heat exchanger must be disassembled and cleaned regularly. On the one hand, this is time-consuming and labor-intensive, increases operating costs, and affects heat exchange efficiency. On the other hand, frequent disassembly and assembly of the heat exchanger makes it easy for the seal of the heat exchanger to be damaged, thereby causing logistics leakage, which will seriously affect the normal operation of production.

[0003] The tubular heat exchanger (also known as shell and tube, tube-in-tube) is the most typical partition-type heat exchanger. It has a long history of industrial application and still occupies a dominant position among all heat exchangers. The tubular heat exchanger is mainly composed of the shell, tube bundle, tube sheet and head. The shell is mostly circular, with parallel tube bundles inside, and the two ends of the tube bundle are fixed to the tube sheet. The two fluids that exchange heat in the tubular heat exchanger, one flows inside the tube, and its travel is called the tube side; the other flows outside the tube, and its travel is called the shell side. After a long period of use, certain salts in tubular heat exchangers will precipitate from the water when the temperature rises and the concentration is high, and they are very easy to adhere to the surface of the heat exchange tubes to form scale. However, there are many pipes inside the heat exchanger, and the pipe openings are small, which makes it inconvenient to manually clean the scale in the pipes. The accumulation of scale in the pipes will increase the wall thickness of the pipes and increase the distance between hot water and cold water, making it impossible for the heat exchanger to cool the hot water quickly, thereby reducing the heat exchange efficiency of the hot water. Excessive scale will block the pipe openings of the heat exchanger, affecting the normal operation of the heat exchanger.

[0004] In view of this, the present invention proposes an anti-scaling heat exchanger. Summary of the invention

[0005] The present invention provides an anti-scaling heat exchanger, which solves the problem in the related art that after working for a long time, the dirt deposited on the heat exchange tube is inconvenient to clean.

[0006] The technical solution of the present invention is as follows: an anti-scaling heat exchanger, comprising: a heat exchange tube and a first chamber and a second chamber respectively installed at both ends of the heat exchange tube through flanges, a plugging disk is fixedly connected to both ends of the heat exchange tube, and a plurality of heat exchange tubes for communicating the first chamber with the second chamber are evenly distributed between the two plugging disks;

[0007] A plurality of flow-blocking mechanisms are evenly distributed inside the heat exchange tube between the two blocking disks, and the placement directions of two adjacent flow-blocking mechanisms in the vertical direction are opposite. A transmission assembly is provided between the second chamber and the blocking disk for synchronously displacing the plurality of flow-blocking mechanisms, so that the outer wall of the heat exchange tube can be supported and cleaned by the flow-blocking mechanisms.

[0008] A connecting pipe is fixed between two adjacent flow blocking mechanisms and between the flow blocking mechanism on the far right and the blocking disk. The connecting pipe passes through the inside of the blocking disk on the right and extends to the inner cavity of the first chamber.

[0009] A water injection and cleaning mechanism is provided at one end of the first chamber, which is used to inject water into the connecting pipe and clean the inner wall of the heat exchange tube.

[0010] Preferably, the baffle mechanism includes a baffle plate having a plurality of through holes for sleeve installation of heat exchange tubes, two cleaning components are symmetrically arranged on the baffle plate outside each of the through holes, and an internal threaded sleeve and a guide sleeve are fixedly sleeved inside the baffle plate.

[0011] Preferably, the cleaning component includes a rotating disk rotatably arranged on the baffle disk, a connecting cavity connected to the interior of the baffle disk is opened on the inner side of the rotating disk, a plurality of right-angle tubes are arranged in a circular array on the rotating disk, the right-angle tubes are arranged at an angle, and the right-angle tubes pass through the interior of the rotating disk and are connected to the connecting cavity, and bristles are arranged at a port of the right-angle tube located on the outer side of the rotating disk.

[0012] Preferably, the transmission assembly includes a screw rod rotatably connected between the two sealing disks and a guide rod fixedly connected between the two sealing disks, the screw rod passes through the interior of the internal threaded sleeve and is threadedly connected thereto, the guide rod passes through the interior of the guide sleeve and is slidably connected thereto, and the screw rod extends to the outside of the second chamber and is fixedly connected to a turntable.

[0013] Preferably, the water injection and cleaning mechanism includes a mounting plate which is detachably fixed to the end of the first chamber by bolts, a hollow disk is arranged parallel to one side of the mounting plate, a water injection port connected to the interior of the hollow disk is fixedly connected to the outer wall of the hollow disk, and a straight-connecting pipe is fixedly connected to the outer wall of the hollow disk on the side close to the mounting plate, the straight-connecting pipe passes through the interior of the mounting plate and extends to the inner side of the first chamber, and the connecting pipe located in the inner cavity of the first chamber extends to the interior of the straight-connecting pipe and is slidably connected to it.

[0014] Preferably, a plurality of retractors are evenly distributed on the outer wall of the mounting plate on the side close to the hollow disk, and a plurality of square telescopic tubes are evenly distributed on the outer wall of the mounting plate on the side away from the hollow disk. The square telescopic tubes and retractors are consistent with the number of heat exchange tubes and correspond one to one. A cleaning component is provided at one end of each of the square telescopic tubes, and the other end of each of the square telescopic tubes is fixedly connected to the outer wall of the mounting plate.

[0015] Preferably, the winder includes a first fixed plate and a second fixed plate fixedly connected to the outer wall of the mounting plate, a mounting cylinder is fixedly connected to the outer wall of the first fixed plate on the side close to the second fixed plate, an axle rod is rotatably connected inside the mounting cylinder, a coil spring is connected between the axle rod and the inner wall of the mounting cylinder, a hollow roller is fixedly connected to the end of the axle rod away from the first fixed plate, and the hollow roller is rotatably connected to the outer wall of the second fixed plate.

[0016] Preferably, a hose connected to the inside of the hollow roller is fixed on the outer wall of the hollow roller, and the hose is wrapped around the outer wall of the hollow roller. An L-shaped tube is fixed between the second fixing plate and the hollow disk to connect the hollow disk and the hollow roller.

[0017] Preferably, the cleaning component comprises a first hollow column fixedly connected to one end of the square telescopic tube, the hose passes through the interior of the square telescopic tube and is fixedly connected to the first hollow column, a water pipe is fixedly connected to the outer wall of the first hollow column, and the other end of the water pipe is rotatably connected to the second hollow column;

[0018] There are multiple first right-angle nozzles in a circular array on the periphery of the first hollow column, and the first right-angle nozzles are fixedly connected to the first hollow column. There are multiple second right-angle nozzles in a circular array on the periphery of the second hollow column that are connected to the interior of the second hollow column. The second right-angle nozzles are inclined, and a cleaning brush is provided on the outer wall of the second hollow column.

[0019] Preferably, a hot flow inlet is provided at the top of the first chamber, a hot flow outlet is provided at the bottom of the second chamber, a cold flow outlet is provided at the top of one side of the heat exchange tube, and a cold flow inlet is provided at the bottom of the other side of the heat exchange tube.

[0020] The working principle and beneficial effects of the present invention are:

[0021] In the present invention, a water injection cleaning mechanism is provided on the first chamber, and the water injection port on the water injection cleaning mechanism is connected to a high-pressure water pipe, and the high-pressure water flow is input into the hollow disk through the water injection port. A part of the water in the hollow disk is transported to the inside of the hollow roller through the L-shaped pipe, and then transported to the hose through the hollow roller, and then transported to the first hollow column and the second hollow column through the hose. In this process, the water in the water pipe and the second hollow column will be sprayed out through the first right-angle nozzle and the second right-angle nozzle respectively. When the first right-angle nozzle and the second right-angle nozzle spray water at a high speed, the entire cleaning component will be pushed to move closer to one side of the heat exchange tube, so that the cleaning component can enter the inside of the heat exchange tube to clean and rinse the inner wall of the heat exchange tube;

[0022] In the present invention, part of the water inside the hollow disk will be transported to the inside of the baffle disk through the straight-connected pipe and the connecting pipe. After the inside of the baffle disk is filled with water, the water inside the baffle disk will enter the connecting cavity and then be sprayed out through the outer port of the right-angle tube. When the inclined right-angle tube sprays water, it will drive the rotating disk to rotate outside the through hole under the action of centrifugal force, so that the outer wall of the heat exchange tube can be washed by the water sprayed by the right-angle tube. At the same time, the revolving right-angle tube can clean the outer wall of the heat exchange tube located at the through hole through the bristles at its port. When the cleaning component is used for cleaning, the turntable is rotated alternately, and the turntable drives the screw rod to rotate forward and reversely, so that the screw rod can drive the baffle disk to move back and forth in cooperation with the internal threaded sleeve, so that the outer wall of the heat exchange tube can be scraped and cleaned more comprehensively. It is simple to operate and easy to use. It can clean the inner and outer walls of a large number of heat exchange tubes at the same time, and has a high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of an anti-scaling heat exchanger proposed by the present invention;

[0025] Figure 2 A schematic diagram of the internal structure of an anti-scaling heat exchanger proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the assembly structure of the flow blocking mechanism proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the flow blocking mechanism proposed by the present invention;

[0028] Figure 5 It is a partial cross-sectional structural schematic diagram of the flow blocking mechanism proposed by the present invention;

[0029] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the water injection mechanism proposed in the present invention;

[0031] Figure 8 This is a schematic diagram of the structural composition of the cleaning component proposed by the present invention;

[0032] Fig. 9 This is a schematic diagram of the structure of the reel proposed by the present invention;

[0033] In the figure: 1, first chamber; 11, hot flow inlet; 2, heat exchange cylinder; 22, cold flow outlet; 21, cold flow inlet; 3, second chamber; 31, hot flow outlet; 4, transmission assembly; 41, turntable; 42, screw rod; 43, guide rod; 5, water injection cleaning mechanism; 51, hollow disk; 52, water injection port; 53, reel; 531, first fixed plate; 532, mounting cylinder; 533, second fixed plate; 534, coil spring; 535, shaft rod; 536, hollow roller; 54, L-shaped tube; 55, hose; 56, square shaped telescopic tube; 57, cleaning component; 571, first hollow column; 572, first right-angle nozzle; 573, second right-angle nozzle; 574, water pipe; 575, cleaning brush; 576, second hollow column; 58, mounting plate; 59, straight pipe; 6, heat exchange tube; 7, baffle mechanism; 71, baffle plate; 72, through hole; 73, cleaning component; 731, rotating disk; 732, right-angle tube; 733, bristles; 734, connecting cavity; 74, internal threaded sleeve; 75, guide sleeve; 8, connecting pipe; 9, blocking disk. DETAILED DESCRIPTION

[0034] The following will be combined with 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. Example

[0035] See also Figure 1 and Figure 2 , an anti-scaling heat exchanger, comprising: a heat exchange tube 2 and a first chamber 1 and a second chamber 3 respectively mounted at both ends of the heat exchange tube 2 through flanges, a plugging plate 9 is fixedly connected at both ends of the heat exchange tube 2, and a plurality of heat exchange tubes 6 for connecting the first chamber 1 and the second chamber 3 are evenly distributed between the two plugging plates 9. A hot flow inlet 11 is arranged at the top of the first chamber 1, a hot flow outlet 31 is arranged at the bottom of the second chamber 3, a cold flow outlet 22 is arranged at the top of one side of the heat exchange tube 2, and a cold flow inlet 21 is arranged at the bottom of the other side of the heat exchange tube 2.

[0036] The working principle of this embodiment is as follows: the cold flow enters through the cold flow inlet 21 and fills the interior of the heat exchange tube 2, and is then discharged from the cold flow outlet 22. During this process, the hot flow enters the interior of the first chamber 1 from the hot flow inlet 11, is transported to the second chamber 3 through the heat exchange tube 6, and is discharged through the hot flow outlet 31. During this process, the hot flow flowing in the heat exchange tube 6 can achieve heat exchange with the cold flow inside the heat exchange tube 2. Example

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 There are multiple flow blocking mechanisms 7 evenly distributed inside the heat exchange tube 2 between the two blocking disks 9, and the placement directions of two adjacent flow blocking mechanisms 7 in the vertical direction are opposite. A transmission assembly 4 is arranged between the second chamber 3 and the blocking disk 9, which is used to synchronously displace the multiple flow blocking mechanisms 7, so that the outer wall of the heat exchange tube 6 can be supported and cleaned by the flow blocking mechanisms 7. A connecting pipe 8 is fixed between two adjacent flow blocking mechanisms 7 and between the flow blocking mechanism 7 on the far right and the blocking disk 9. The connecting pipe 8 passes through the inside of the blocking disk 9 on the right and extends to the inner cavity of the first chamber 1.

[0038] Furthermore, the baffle mechanism 7 includes a baffle plate 71, on which a plurality of through holes 72 for sleeve installation of the heat exchange tubes 6 are opened, two cleaning components 73 are symmetrically arranged on the baffle plate 71 outside each through hole 72, and an internal threaded sleeve 74 and a guide sleeve 75 are fixedly sleeved inside the baffle plate 71.

[0039] Among them, the cleaning component 73 includes a rotating disk 731 rotatably arranged on the baffle disk 71, a connecting cavity 734 connected to the interior of the baffle disk 71 is opened on the inner side of the rotating disk 731, and a plurality of right-angle tubes 732 are arranged in a circular array on the rotating disk 731. The right-angle tubes 732 are inclined and pass through the interior of the rotating disk 731 and are connected to the connecting cavity 734. Bristles 733 are arranged at a port of the right-angle tube 732 located on the outside of the rotating disk 731.

[0040] Specifically, the transmission assembly 4 includes a screw rod 42 rotatably connected between the two sealing disks 9 and a guide rod 43 fixedly connected between the two sealing disks 9. The screw rod 42 passes through the interior of the internal threaded sleeve 74 and is threadedly connected thereto. The guide rod 43 passes through the interior of the guide sleeve 75 and is slidably connected thereto. The screw rod 42 extends to the outside of the second chamber 3 and is fixedly connected to the turntable 41.

[0041] Working principle of this embodiment: After the baffle plate 71 is filled with water, the water inside the baffle plate 71 will enter the connecting cavity 734 and then be sprayed out through the outer port of the right-angle tube 732. When the inclined right-angle tube 732 sprays water, it will drive the rotating disk 731 to rotate outside the through hole 72 under the action of centrifugal force, so that the outer wall of the heat exchange tube 6 can be washed by the water sprayed by the right-angle tube 732. At the same time, the revolving right-angle tube 732 can clean the outer wall of the heat exchange tube 6 located at the through hole 72 through the bristles 733 at its port. When the cleaning component 73 is used for cleaning, the turntable 41 is rotated alternately, and the turntable 41 drives the screw 42 to rotate forward and reversely, so that the screw 42 can drive the baffle plate 71 to move back and forth in cooperation with the internal threaded sleeve 74, so that the outer wall of the heat exchange tube 6 can be scraped and cleaned more comprehensively. Example

[0042] See also Figure 1 , Figure 2 , Figure 7 , Figure 8 as well as Fig. 9 A water injection and cleaning mechanism 5 is provided at one end of the first chamber 1 for injecting water into the connecting pipe 8 and cleaning the inner wall of the heat exchange tube 6 .

[0043] Furthermore, the water injection cleaning mechanism 5 includes a mounting plate 58 detachably fixed to the end of the first chamber 1 by bolts, a hollow disk 51 is arranged in parallel on one side of the mounting plate 58, a water injection port 52 connected to the inside of the hollow disk 51 is fixed on the outer wall of the hollow disk 51, and a straight-connecting pipe 59 is fixedly connected to the outer wall of the hollow disk 51 on the side close to the mounting plate 58. The straight-connecting pipe 59 passes through the inside of the mounting plate 58 and extends to the inside of the first chamber 1. The connecting pipe 8 located in the inner cavity of the first chamber 1 extends to the inside of the straight-connecting pipe 59 and is slidably connected thereto. A plurality of reels 53 are evenly distributed on the outer wall of the mounting plate 58 on the side close to the hollow disk 51, and a plurality of square telescopic tubes 56 are evenly distributed on the outer wall of the mounting plate 58 on the side away from the hollow disk 51, and the two square frames on the square telescopic tube 56 will not be completely separated. The number of square telescopic tubes 56 and retractors 53 is consistent with that of heat exchange tubes 6 and corresponds one to one. A cleaning component 57 is provided at one end of each square telescopic tube 56 , and the other end of each square telescopic tube 56 is fixed to the outer wall of the mounting plate 58 .

[0044] Furthermore, the reel 53 includes a first fixed plate 531 and a second fixed plate 533 fixedly connected to the outer wall of the mounting plate 58, a mounting tube 532 is fixedly connected to the outer wall of the first fixed plate 531 near the second fixed plate 533, a shaft 535 is rotatably connected inside the mounting tube 532, a coil spring 534 is connected between the shaft 535 and the inner wall of the mounting tube 532, a hollow roller 536 is fixedly connected to the end of the shaft 535 away from the first fixed plate 531, and the hollow roller 536 is rotatably connected to the outer wall of the second fixed plate 533. A hose 55 connected to the inside of the hollow roller 536 is fixed on the outer wall of the hollow roller 536, the hose 55 is wound around the outer wall of the hollow roller 536, and an L-shaped tube 54 is fixedly connected between the second fixed plate 533 and the hollow disk 51 for connecting the hollow disk 51 with the hollow roller 536.

[0045] Specifically, the cleaning component 57 includes a first hollow column 571 fixedly connected to one end of the square telescopic tube 56, a hose 55 passes through the interior of the square telescopic tube 56 and is fixedly connected to the first hollow column 571, a water pipe 574 is fixedly connected to the outer wall of the first hollow column 571, and the other end of the water pipe 574 is rotatably connected to the second hollow column 576. A plurality of first right-angle nozzles 572 are arranged in an annular array on the periphery of the first hollow column 571, and the first right-angle nozzles 572 are fixedly connected to the first hollow column 571, and a plurality of second right-angle nozzles 573 are arranged in an annular array on the periphery of the second hollow column 576 and are connected to the interior of the second hollow column 576, and the second right-angle nozzles 573 are arranged obliquely, and a cleaning brush 575 is arranged on the outer wall of the second hollow column 576.

[0046] The working principle of this embodiment is as follows: the water injection port 52 is connected to the high-pressure water pipe, and the high-pressure water flow is input into the hollow disk 51 through the water injection port 52. A part of the water in the hollow disk 51 is transported to the hollow roller 536 through the L-shaped tube 54. The water transported to the hollow roller 536 can be transported to the hose 55, and then transported to the first hollow column 571 through the hose 55. The water in the first hollow column 571 is transported to the second hollow column 576 through the water pipe 574. In this process, the water in the water pipe 574 and the second hollow column 576 will be sprayed out through the first right-angle nozzle 572 and the second right-angle nozzle 573 respectively. When the first right-angle nozzle 572 and the second right-angle nozzle 573 spray water at high speed, the entire cleaning component 57 will be pushed to move closer to the side of the heat exchange tube 6, thereby driving the square telescopic tube 56 to extend, driving the hollow roller 536 to rotate to relax the hose 55, and making the coil spring 534 gradually tighten. As the cleaning component 57 enters the interior of the heat exchange tube 6 and moves inside the heat exchange tube 6, the inclined second right-angle nozzle 573 sprays water, which drives the second hollow column 576 to rotate at the end of the water pipe 574, so that the inner wall of the heat exchange tube 6 can be cleaned by the cleaning brush 575.

[0047] Working principle and usage process: After a long period of work, when the heat exchange tube 6 needs to be cleaned, the water injection port 52 is connected to the high-pressure water pipe, and the high-pressure water flow is input into the hollow disk 51 through the water injection port 52. Part of the water inside the hollow disk 51 will be transported to the inside of the hollow roller 536 through the L-shaped tube 54, and the other part will be transported to the inside of the connecting tube 8 located on the far right through the L-shaped tube 54.

[0048] The water transported to the connecting tube 8 can fill the interior of each baffle disk 71. The water inside the baffle disk 71 will enter the connecting cavity 734 and then be sprayed out through the outer port of the right-angle tube 732. When the inclined right-angle tube 732 sprays water, the rotating disk 731 will be driven to rotate outside the through hole 72 under the action of centrifugal force, so that the outer wall of the heat exchange tube 6 can be flushed by the water sprayed from the right-angle tube 732. At the same time, the revolving right-angle tube 732 can clean the outer wall of the heat exchange tube 6 located at the through hole 72 through the bristles 733 at its port.

[0049] When the cleaning assembly 73 is used for cleaning, the turntable 41 is rotated alternately, and the turntable 41 drives the screw rod 42 to rotate forward and reversely, so that the screw rod 42, in cooperation with the internal threaded sleeve 74, can drive the baffle plate 71 to move back and forth, thereby being able to scrape and clean the outer wall of the heat exchange tube 6 more comprehensively.

[0050] The water transported to the inside of the hollow roller 536 can be transported to the hose 55, and then transported to the first hollow column 571 through the hose 55. The water in the first hollow column 571 is transported to the second hollow column 576 through the water pipe 574. During this process, the water in the water pipe 574 and the second hollow column 576 will be sprayed out through the first right-angle nozzle 572 and the second right-angle nozzle 573 respectively. When the first right-angle nozzle 572 and the second right-angle nozzle 573 spray water at high speed, the entire cleaning component 57 will be pushed to move toward one side of the heat exchange tube 6, thereby driving the square telescopic tube 56 to extend, and driving the hollow roller 536 to rotate to relax the hose 55, so that the coil spring 534 is gradually tightened. As the cleaning component 57 enters the interior of the heat exchange tube 6 and moves inside the heat exchange tube 6, the inclined second right-angle nozzle 573 sprays water, which drives the second hollow column 576 to rotate at the end of the water pipe 574, so that the inner wall of the heat exchange tube 6 can be cleaned by the cleaning brush 575.

[0051] When the cleaning component 57 moves from one end of the heat exchange tube 6 to the other end of the heat exchange tube 6, water supply to the inside of the cleaning component 57 is stopped, and the first right-angle nozzle 572 and the second right-angle nozzle 573 stop spraying water. Without the strong thrust of water, the elastic force of the coil spring 534 can be used to reel the hose 55 through the hollow roller 536 to pull the cleaning component 57 back, so that the square telescopic tube 56 shrinks and resets. After that, water is supplied to the inside of the cleaning component 57 again, so that the cleaning component 57 can enter the inside of the heat exchange tube 6 again to clean the inner wall of the heat exchange tube 6.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-scaling heat exchanger, comprising: A heat exchange tube (2) and a first chamber (1) and a second chamber (3) respectively mounted at both ends of the heat exchange tube (2) via flanges, characterized in that a plugging disk (9) is fixedly connected to both ends of the heat exchange tube (2), and a plurality of heat exchange tubes (6) for communicating the inside of the first chamber (1) and the inside of the second chamber (3) are evenly distributed between the two plugging disks (9); A plurality of flow-blocking mechanisms (7) are evenly distributed inside the heat exchange tube (2) between the two blocking disks (9), and two adjacent flow-blocking mechanisms (7) are arranged in opposite directions in the vertical direction. A transmission assembly (4) is provided between the second chamber (3) and the blocking disk (9) for synchronously displacing the plurality of flow-blocking mechanisms (7), so that the outer wall of the heat exchange tube (6) can be supported and cleaned by the flow-blocking mechanisms (7); A connecting pipe (8) is fixed between two adjacent flow blocking mechanisms (7) and between the flow blocking mechanism (7) located on the far right and the blocking disk (9), wherein the connecting pipe (8) passes through the inside of the blocking disk (9) located on the right and extends to the inner cavity of the first chamber (1); A water injection and cleaning mechanism (5) is provided at one end of the first chamber (1) for injecting water into the interior of the connecting pipe (8) and cleaning the inner wall of the heat exchange tube (6); The baffle mechanism (7) comprises a baffle plate (71), a plurality of through holes (72) for sleeves of heat exchange tubes (6) are provided on the baffle plate (71), two cleaning components (73) are symmetrically arranged on the baffle plate (71) outside each of the through holes (72), and an internal threaded sleeve (74) and a guide sleeve (75) are fixedly sleeved inside the baffle plate (71); the cleaning component (73) comprises a rotating plate (74) rotatably arranged on the baffle plate (71); 31), a connecting cavity (734) communicating with the interior of the baffle disc (71) is provided on the inner side of the rotating disc (731), a plurality of right-angle tubes (732) are provided in a circular array on the rotating disc (731), the right-angle tubes (732) are arranged obliquely, and the right-angle tubes (732) penetrate the interior of the rotating disc (731) and communicate with the connecting cavity (734), and bristles (733) are provided at a port of the right-angle tube (732) located on the outer side of the rotating disc (731); The water injection cleaning mechanism (5) comprises a mounting plate (58) detachably fixed to the end of the first chamber (1) by bolts, a hollow plate (51) is arranged in parallel on one side of the mounting plate (58), a water injection port (52) connected to the interior of the hollow plate (51) is fixedly connected to the outer wall of the hollow plate (51), a straight connection pipe (59) is fixedly connected to the outer wall of the hollow plate (51) on the side close to the mounting plate (58), the straight connection pipe (59) passes through the interior of the mounting plate (58) and extends to the inside of the first chamber (1), and a connecting pipe (8) located in the inner cavity of the first chamber (1) extends to the interior of the straight connection pipe (59) and is slidably connected thereto; A plurality of retractors (53) are evenly distributed on the outer wall of the mounting plate (58) on the side close to the hollow disk (51), and a plurality of square telescopic tubes (56) are evenly distributed on the outer wall of the mounting plate (58) on the side away from the hollow disk (51), the number of the square telescopic tubes (56) and the retractors (53) being consistent with the number of the heat exchange tubes (6) and corresponding one to one, one end of each of the square telescopic tubes (56) being provided with a cleaning component (57), and the other end of each of the square telescopic tubes (56) being fixedly connected to the outer wall of the mounting plate (58); The reel (53) comprises a first fixing plate (531) and a second fixing plate (533) fixedly connected to the outer wall of the mounting plate (58); a mounting tube (532) is fixedly connected to the outer wall of the first fixing plate (531) on a side close to the second fixing plate (533); a shaft (535) is rotatably connected inside the mounting tube (532); a coil spring (534) is connected between the shaft (535) and the inner wall of the mounting tube (532); the shaft (535) is away from the first fixing plate (531). A hollow roller (536) is fixedly connected to one end of the hollow roller (536), and the hollow roller (536) is rotatably connected to the outer wall of the second fixed plate (533); a hose (55) connected to the interior of the hollow roller (536) is fixed to the outer wall of the hollow roller (536), and the hose (55) is wound around the outer wall of the hollow roller (536); an L-shaped tube (54) is fixedly connected between the second fixed plate (533) and the hollow disk (51) for communicating between the hollow disk (51) and the hollow roller (536).

2. The anti-scaling heat exchanger according to claim 1, characterized in that: The transmission assembly (4) comprises a screw rod (42) rotatably connected between the two blocking disks (9) and a guide rod (43) fixedly connected between the two blocking disks (9); the screw rod (42) passes through the interior of the internal threaded sleeve (74) and is threadedly connected thereto; the guide rod (43) passes through the interior of the guide sleeve (75) and is slidably connected thereto; the screw rod (42) extends to the outside of the second chamber (3) and is fixedly connected to the rotating disk (41).

3. The anti-scaling heat exchanger according to claim 2, characterized in that: The cleaning component (57) comprises a first hollow column (571) fixedly connected to one end of a square telescopic tube (56); the hose (55) passes through the interior of the square telescopic tube (56) and is fixedly connected to the first hollow column (571); a water pipe (574) is fixedly connected to the outer wall of the first hollow column (571); the other end of the water pipe (574) is rotatably connected to a second hollow column (576); A plurality of first right-angle nozzles (572) are arranged in an annular array on the periphery of the first hollow column (571), and the first right-angle nozzles (572) are fixedly connected to the first hollow column (571). A plurality of second right-angle nozzles (573) are arranged in an annular array on the periphery of the second hollow column (576), and are connected to the interior of the second hollow column (576). The second right-angle nozzles (573) are arranged at an angle, and a cleaning brush (575) is arranged on the outer wall of the second hollow column (576).

4. The anti-scaling heat exchanger according to claim 3, characterized in that: A hot flow inlet (11) is provided at the top of the first chamber (1), a hot flow outlet (31) is provided at the bottom of the second chamber (3), a cold flow outlet (22) is provided at the top of one side of the heat exchange tube (2), and a cold flow inlet (21) is provided at the bottom of the other side of the heat exchange tube (2).

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