A heat exchanger for a refrigerated dryer

Abstract

The present invention relates to the technical field of heat exchangers, and discloses a heat exchanger for a refrigerated dryer, comprising a tank body, an inner wall of the tank body is fixedly connected with a partition, an inner wall of the partition is fixedly connected with a heat conduction pipe, a left side of the tank body is fixedly connected with a motor, an output end of the motor is fixedly connected with a transmission rod, a circumferential surface of the transmission rod is fixedly connected with an impeller 1, a circumferential surface of the transmission rod is fixedly connected with an impeller 2, a front left side of the tank body is fixedly connected with an air outlet pipe, a rear right side of the tank body is fixedly connected with an air inlet pipe, and a right side of the tank body is fixedly connected with a discharge pipe. The present invention allows air to be gradually cooled by heat exchange, and there will be no direct heat exchange between the air and the low-temperature refrigerant, which will result in a general heat exchange effect of the air. At the same time, the second impeller will stir the air, increase the contact area between the air and the heat conduction pipe, and further increase the heat exchange speed of the air.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, in particular to a heat exchanger for a refrigerated dryer. Background Art

[0002] The heat exchanger in the refrigerated dryer is one of the key components. It is mainly used for cooling and condensing moisture and recovering energy. The heat exchanger will cool the air so that the cooled air can freeze the objects in the dryer.

[0003] The patent with announcement number CN214892724U relates to the technical field of heat exchange equipment, and specifically to a heat exchanger; the heat exchanger includes an internal fluid pipeline, an external fluid pipeline and an outer shell, the internal fluid pipeline includes an upper tube body, an internal threaded sheet and a lower tube body, the upper tube body is connected to the lower tube body, and the upper tube body is connected to the upper side of the outer shell, and the lower tube body is connected to the lower side of the outer shell, and the internal threaded sheet is arranged inside the lower tube body. The cooperation of the internal threaded sheet with the upper tube body and the lower tube body can effectively realize the extension of the moving path of the heat source fluid, so that the heat source fluid can more fully exchange heat with the refrigerant fluid in the heat exchanger, thereby improving the heat exchange effect of the heat exchanger.

[0004] However, this device improves the heat exchange effect of the air by extending the moving path of the heat source fluid, which is prone to the problem of long heat exchange time of the air, resulting in a slow heat exchange speed of the air. Therefore, a heat exchanger for a refrigerated dryer is proposed to solve the above-mentioned problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a heat exchanger for a refrigerated dryer in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a heat exchanger for a refrigerated dryer, comprising a tank body, the inner wall of the tank body is fixedly connected to a partition, the inner wall of the partition is fixedly connected to a heat conduction pipe, the left side of the tank body is fixedly connected to a motor, the output end of the motor is fixedly connected to a transmission rod, the circumferential surface of the transmission rod is fixedly connected to an impeller 1, the circumferential surface of the transmission rod is fixedly connected to an impeller 2, the front left side of the tank body is fixedly connected to an outlet pipe, the rear right side of the tank body is fixedly connected to an air inlet pipe, the right side of the tank body is fixedly connected to a discharge pipe, and the The left side of the tank body is fixedly connected with a feed pipe; the inner wall of the tank body is provided with a retention mechanism, the inner wall of the tank body is provided with a scraping mechanism, and the lower surface of the tank body is provided with a collecting mechanism; the collecting mechanism includes a collecting box and a threaded rod, the collecting box is installed on the lower surface of the tank body, and the threaded rod is threadedly connected to the left side of the collecting box; the circumferential surface of the transmission rod is rotatably connected to the inner wall of the tank body, the number of the partitions is provided with two, and the two partitions are symmetrically distributed on the inner wall of the tank body, the number of the heat conduction pipes is provided with multiple, and the multiple heat conduction pipes are distributed in a circular array between the two partitions, and the cold The refrigerant is injected into the tank from the feed pipe, and the air is passed into the tank from the air intake pipe. At this time, the refrigerant entering the tank will enter the heat transfer pipe and flow to the right, and then the refrigerant will be discharged from the discharge pipe, so that the refrigerant enters from the left and is discharged from the right. The temperature of the refrigerant just entering is at the lowest state, which leads to the low temperature on the left side of the heat transfer pipe. In the process of the refrigerant moving to the right, the temperature will be dissipated and then heated up, resulting in a relatively high temperature on the right side of the heat transfer pipe. Therefore, the air entering from the right side of the tank will first contact with the relatively high temperature surface on the right side of the heat transfer pipe and exchange heat. At this time, the air flows from the tank to the right side. It circulates on the left side and contacts with the relatively low temperature surface on the left side of the heat pipe for further heat exchange, so that the air can be gradually cooled down by heat exchange, and the air will not directly exchange heat with the low-temperature refrigerant, which will lead to a general heat exchange effect of the air. At the same time, the motor drives the transmission rod to rotate, and the transmission rod drives the impeller 1 to rotate. The impeller 1 drives the refrigerant to rotate and makes the refrigerant evenly enter multiple heat pipes, so that the temperature of multiple heat pipes can be the same. At the same time, the transmission rod drives the impeller 2 to rotate, and the impeller 2 will stir the air, increase the contact area between the air and the heat pipe, and further increase the heat exchange rate of the air.

[0007] Preferably, the retention mechanism includes a fixed disk, a retaining ring, an impeller three, an air inlet and an air outlet, the fixed disk is fixedly connected to the inner wall of the tank body, the retaining ring is fixedly connected to the inner wall of the fixed disk, the impeller three is fixedly connected to the circumferential surface of the transmission rod, the air inlet is arranged on the right side of the fixed disk, and the air outlet is arranged on the left side of the fixed disk; both sides of the impeller three are in contact with the inner wall of the fixed disk, the surface of the impeller three is in contact with the inner surface of the retaining ring, the inner wall of the fixed disk is in contact with the circumferential surface of the heat conducting pipe, the inner wall of the fixed disk is rotatably connected with the circumferential surface of the transmission rod, when the air enters the tank body, it will enter the fixed disk through the air inlet, at this time, the transmission rod drives the impeller three to rotate slowly, and the impeller three drives the air in the fixed disk to rotate for one circle and then discharges it from the air outlet, thereby increasing the time that the air stays in the tank body, allowing the air heat exchange to be more sufficient, and the speed of the motor can be changed to change the retention time of the air in the tank body, thereby controlling the cooling range of the air and improving the scope of application of the device.

[0008] Preferably, the scraping mechanism includes a rotating ring, magnet 1, magnet 2, a scraping strip and a reciprocating mechanism, the rotating ring is rotatably connected to the inner wall of the tank body, the magnet 1 is fixedly connected to the inner wall of the rotating ring, the magnet 2 is fixedly connected to the surface of impeller 2, the number of scraping strips is multiple, and the multiple scraping strips are fixedly connected on both sides of the rotating ring, and the inner surface of the rotating ring is provided with a reciprocating mechanism; the surface of the scraping strip is in contact with the inner wall of the tank body, and magnet 1 and magnet 2 are magnetically attracted to each other. After the outside air enters the tank body, it will cool down rapidly, and the moisture in the air will be wrapped around the dust and impurities to form ice crystals and adhere to the inner wall of the tank body. At this time, the rotation of impeller 2 will drive magnet 2 to rotate, and magnet 2 will drive magnet 1 to rotate through magnetic attraction, and magnet 1 will drive the rotating ring to rotate, and the rotating ring will drive the scraping strip to rotate, and the scraping strip will scrape the ice crystals on the inner wall of the tank body to prevent the accumulation of ice crystals from affecting the subsequent air intake and discharge.

[0009] Preferably, the reciprocating mechanism includes an elastic telescopic rod, a guide block, a push rod, a slider and a scraper rod, the elastic telescopic rod is fixedly connected to the inner surface of the rotating ring, the guide block is fixedly connected to the end of the elastic telescopic rod away from the rotating ring, the push rod is rotatably connected to the two sides of the guide block by a torsion spring, the slider is rotatably connected to the end of the push rod away from the guide block by a torsion spring, and the scraper rod is fixedly connected to the two sides of the slider; the surface of the scraper rod is in contact with the side of the scraper bar away from the tank body, the arc surface of the guide block is in contact with the circumferential surface of the heat conduction pipe, the surface of the slider is slidably connected to the inner wall of the scraper bar, and when the rotating ring rotates, the elastic telescopic rod is driven to rotate, and the elastic The telescopic rod drives the guide block to rotate. After the guide block rotates, it contacts the heat conduction pipe through the arc surface and is pushed in the opposite direction by the heat conduction pipe. The guide block pushes the slider to slide on the inner wall of the scraper through the push rod. The slider drives the scraper rod to move on the surface of the scraper bar. The scraper rod will scrape off the ice crystals adhered to the surface of the scraper bar due to scraping, thereby realizing self-cleaning of the scraper bar, and the fallen ice crystals will enter the collection box. After the device is used, the tank body returns to temperature, causing the temperature in the collection box to rise, and the ice crystals inside the collection box will melt and be discharged from the opened threaded rod, so that the ice crystals separated in the heat exchanger can be collected and melted and discharged, preventing them from staying in the tank body and affecting subsequent air heat exchange.

[0010] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0011] 1. The heat exchanger used in the refrigerated dryer cooperates with the tank, partition, heat pipe, motor, transmission rod, impeller 1, impeller 2, outlet pipe, inlet pipe, discharge pipe and feed pipe to allow the air to be gradually cooled by heat exchange. There will be no direct heat exchange between the air and the low-temperature refrigerant, which will result in a general heat exchange effect of the air. At the same time, impeller 2 will stir the air, increase the contact area between the air and the heat pipe, and further increase the heat exchange speed of the air.

[0012] 2. The heat exchanger for the refrigerated dryer cooperates with the fixed plate, the baffle ring, the impeller three, the air inlet and the air outlet so that the air enters the tank through the air inlet. At this time, the transmission rod drives the impeller three to rotate slowly. The impeller three drives the air in the fixed plate to rotate for one circle and then discharges it from the air outlet, thereby increasing the time the air stays in the tank, allowing the air heat exchange to be more sufficient, and changing the speed of the motor to change the residence time of the air in the tank, thereby controlling the cooling range of the air and improving the application range of the device.

[0013] 3. The heat exchanger of the refrigerated dryer works in coordination among the rotating ring, magnet 1, magnet 2 and scraper strips. After the outside air enters the tank, the temperature will drop rapidly. The moisture in the air will wrap around the dust and impurities to form ice crystals and adhere to the inner wall of the tank. At this time, the rotation of impeller 2 will drive magnet 2 to rotate. Magnet 2 drives magnet 1 to rotate through magnetic attraction. Magnet 1 drives the rotating ring to rotate. The rotating ring drives the scraper strips to rotate. The scraper strips scrape off the ice crystals on the inner wall of the tank to prevent the accumulation of ice crystals from affecting the subsequent air intake and discharge.

[0014] 4. The heat exchanger for the refrigerated dryer can scrape off the ice crystals adhered to the surface of the scraper bar due to scraping through the coordinated operation of the elastic telescopic rod, the guide block, the push rod, the slider, the scraper rod, the collection box, and the threaded rod, thereby realizing self-cleaning of the scraper bar, and the fallen ice crystals will enter the collection box. After the device is used, the tank body returns to temperature, causing the temperature in the collection box to rise, and the ice crystals inside the collection box will melt and be discharged from the opened threaded rod, so that the ice crystals separated in the heat exchanger can be collected and melted and discharged, preventing them from staying in the tank body and affecting the subsequent air heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 A half-section diagram of the tank structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the second impeller of the present invention;

[0018] Figure 4 It is a schematic diagram of the retaining ring structure of the present invention;

[0019] Figure 5 It is a schematic diagram of the third structure of the impeller of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of the rotating ring of the present invention;

[0021] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0022] Figure 8 It is a schematic diagram of the structure of the collecting box of the present invention.

[0023] In the figure: 1. tank body; 11. partition; 12. heat conduction pipe; 2. motor; 21. transmission rod; 22. impeller 1; 23. impeller 2; 3. outlet pipe; 4. inlet pipe; 5. discharge pipe; 6. feed pipe; 7. retention mechanism; 71. fixed plate; 72. retaining ring; 73. impeller 3; 74. air inlet hole; 75. air outlet hole; 8. scraping mechanism; 81. rotating ring; 82. magnet 1; 83. magnet 2; 84. scraping strip; 85. reciprocating mechanism; 851. elastic telescopic rod; 852. guide block; 853. push rod; 854. slider; 855. scraping rod; 9. collecting mechanism; 91. collecting box; 92. threaded rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 8One embodiment of the present invention is: a heat exchanger for a refrigerated dryer, comprising a tank body 1, a partition 11 is fixedly connected to the inner wall of the tank body 1, a heat conducting pipe 12 is fixedly connected to the inner wall of the partition 11, a motor 2 is fixedly connected to the left side of the tank body 1, a transmission rod 21 is fixedly connected to the output end of the motor 2, an impeller 1 22 is fixedly connected to the circumferential surface of the transmission rod 21, an impeller 2 23 is fixedly connected to the circumferential surface of the transmission rod 21, an air outlet pipe 3 is fixedly connected to the front left side of the tank body 1, an air inlet pipe 4 is fixedly connected to the rear right side of the tank body 1, a discharge pipe 5 is fixedly connected to the right side of the tank body 1, and a feed pipe 6 is fixedly connected to the left side of the tank body 1; The inner wall of the tank body 1 is provided with a retention mechanism 7, the inner wall of the tank body 1 is provided with a scraping mechanism 8, and the lower surface of the tank body 1 is provided with a collecting mechanism 9. The refrigerant is injected into the tank body 1 from the feed pipe 6, and the air is passed into the tank body 1 from the air intake pipe 4. At this time, the refrigerant entering the tank body 1 will enter the heat pipe 12 and flow to the right, and then the refrigerant will be discharged from the discharge pipe 5, so that the refrigerant enters from the left and is discharged from the right. The temperature of the refrigerant that has just entered is at the lowest state, which leads to a low temperature on the left side of the heat pipe 12. In the process of the refrigerant moving to the right, the temperature will be dissipated and then heated up, resulting in a relatively high temperature on the right side of the heat pipe 12. Therefore, the air entering from the right side of the tank body 1 will first contact and exchange heat with the relatively high temperature surface on the right side of the heat conducting tube 12. At this time, the air will flow to the left side of the tank body 1 and contact and exchange heat with the relatively low temperature surface on the left side of the heat conducting tube 12, so that the air can be gradually cooled by heat exchange, and there will be no direct heat exchange between the air and the low-temperature refrigerant, which will lead to a general heat exchange effect of the air. The collecting mechanism 9 includes a collecting box 91 and a threaded rod 92. The collecting box 91 is installed on the lower surface of the tank body 1, and the threaded rod 92 is threadedly connected to the left side of the collecting box 91. The circumferential surface of the transmission rod 21 is rotatably connected to the inner wall of the tank body 1. There are two partitions 11, and the two partitions 11 are symmetrically distributed on the inner wall of the tank body 1. There are multiple heat pipes 12, and the multiple heat pipes 12 are distributed in a circular array between the two partitions 11. The motor 2 drives the transmission rod 21 to rotate, and the transmission rod 21 drives the impeller 1 22 to rotate. The impeller 1 22 drives the refrigerant to rotate and allows the refrigerant to evenly enter the multiple heat pipes 12, so that the temperature of the multiple heat pipes 12 can be the same. At the same time, the transmission rod 21 drives the impeller 2 23 to rotate, and the impeller 2 23 will stir the air, increase the contact area between the air and the heat pipe 12, and further increase the heat exchange rate of the air.

[0026] The retention mechanism 7 includes a fixed plate 71, a retaining ring 72, an impeller 3 73, an air inlet 74 and an air outlet 75. The fixed plate 71 is fixedly connected to the inner wall of the tank body 1, the retaining ring 72 is fixedly connected to the inner wall of the fixed plate 71, the impeller 3 73 is fixedly connected to the circumferential surface of the transmission rod 21, the air inlet 74 is arranged on the right side of the fixed plate 71, and the air outlet 75 is arranged on the left side of the fixed plate 71. When air enters the tank body 1, it will enter the fixed plate 71 through the air inlet 74. At this time, the transmission rod 21 drives the impeller 3 73 to rotate slowly, and the impeller 3 73 brings the air in the fixed plate 71 After rotating one circle, the air is discharged from the air outlet 75, thereby increasing the time that the air stays in the tank body 1, allowing the air heat exchange to be more sufficient, and the speed of the motor 2 can be changed to change the residence time of the air in the tank body 1, thereby controlling the cooling range of the air and improving the application scope of the device; both sides of the impeller three 73 are in contact with the inner wall of the fixed disk 71, the surface of the impeller three 73 is in contact with the inner surface of the retaining ring 72, the inner wall of the fixed disk 71 is in contact with the circumferential surface of the heat pipe 12, and the inner wall of the fixed disk 71 is rotatably connected to the circumferential surface of the transmission rod 21.

[0027] Working principle: The refrigerant is injected into the tank body 1 from the feed pipe 6, and the air is passed into the tank body 1 from the air intake pipe 4. At this time, the refrigerant entering the tank body 1 will enter the heat pipe 12 and flow to the right, and then the refrigerant will be discharged from the discharge pipe 5, so that the refrigerant enters from the left and is discharged from the right. The temperature of the refrigerant just entering is at the lowest state, which leads to the low temperature on the left side of the heat pipe 12. In the process of the refrigerant moving to the right, the temperature will be dissipated and then heated up, resulting in a relatively high temperature on the right side of the heat pipe 12. Therefore, the air entering from the right side of the tank body 1 will first contact with the relatively high temperature surface on the right side of the heat pipe 12 and exchange heat. At this time, the air from the right side of the tank body 1 The air circulates on the left side and contacts with the relatively low temperature surface on the left side of the heat pipe 12 for further heat exchange, so that the air can be gradually cooled by heat exchange, and the air will not directly exchange heat with the low-temperature refrigerant, which will lead to a general heat exchange effect of the air. At the same time, the motor 2 drives the transmission rod 21 to rotate, the transmission rod 21 drives the impeller 1 22 to rotate, the impeller 1 22 drives the refrigerant to rotate and allows the refrigerant to evenly enter the multiple heat pipes 12, so that the temperature of the multiple heat pipes 12 can be the same. At the same time, the transmission rod 21 drives the impeller 2 23 to rotate, and the impeller 2 23 will stir the air, increase the contact area between the air and the heat pipe 12, and further increase the heat exchange rate of the air.

[0028] When the air enters the tank body 1, it will enter the fixed disk 71 through the air inlet 74. At this time, the transmission rod 21 drives the impeller three 73 to rotate slowly. The impeller three 73 drives the air in the fixed disk 71 to rotate for one circle and then discharges it from the air outlet 75, thereby increasing the time the air stays in the tank body 1, allowing the air heat exchange to be more sufficient, and changing the speed of the motor 2 to change the residence time of the air in the tank body 1, thereby controlling the cooling range of the air and improving the application range of the device.

[0029] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, the scraping mechanism 8 includes a rotating ring 81, a magnet 1 82, a magnet 2 83, a scraping strip 84 and a reciprocating mechanism 85. The rotating ring 81 is rotatably connected to the inner wall of the tank body 1, the magnet 1 82 is fixedly connected to the inner wall of the rotating ring 81, the magnet 2 83 is fixedly connected to the surface of the impeller 23, the number of the scraping strips 84 is multiple, and the multiple scraping strips 84 are fixedly connected to both sides of the rotating ring 81, and the inner surface of the rotating ring 81 is provided with a reciprocating mechanism 85. After the outside air enters the tank body 1, The temperature will drop rapidly, and the moisture in the air will wrap around the dust and impurities to form ice crystals and adhere to the inner wall of the tank body 1. At this time, the rotation of impeller 23 will drive magnet 2 83 to rotate, and magnet 2 83 will drive magnet 1 82 to rotate through magnetic attraction, and magnet 1 82 will drive rotating ring 81 to rotate, and rotating ring 81 will drive scraper 84 to rotate. Scraper 84 will scrape off the ice crystals on the inner wall of the tank body 1 to prevent the accumulation of ice crystals from affecting the subsequent air intake and discharge; the surface of scraper 84 is in contact with the inner wall of the tank body 1, and magnet 1 82 and magnet 2 83 are magnetically attracted to each other.

[0030] The reciprocating mechanism 85 includes an elastic telescopic rod 851, a guide block 852, a push rod 853, a slider 854 and a scraper rod 855. The elastic telescopic rod 851 is fixedly connected to the inner surface of the rotating ring 81, the guide block 852 is fixedly connected to the end of the elastic telescopic rod 851 away from the rotating ring 81, the push rod 853 is rotatably connected to both sides of the guide block 852 through a torsion spring, the slider 854 is rotatably connected to the end of the push rod 853 away from the guide block 852 through a torsion spring, and the scraper rod 855 is fixedly connected to both sides of the slider 854. When the rotating ring 81 rotates, the elastic telescopic rod 851 is driven to rotate, and the elastic telescopic rod 851 drives the guide block 852 to rotate. After the guide block 852 rotates, it contacts the heat conduction pipe 12 through the arc surface and is pushed and displaced in the opposite direction by the heat conduction pipe 12. The guide block 852 is pushed and displaced by the push rod 853 Block 854 slides on the inner wall of scraper strip 84, and slider 854 drives scraper rod 855 to move on the surface of scraper strip 84. Scraper rod 855 will scrape off the ice crystals adhered to the surface of scraper strip 84 due to scraping, thereby realizing self-cleaning of scraper strip 84; the surface of scraper rod 855 is in contact with the side of scraper strip 84 away from tank body 1, the arc surface of guide block 852 is in contact with the circumferential surface of heat conduction pipe 12, and the surface of slider 854 is slidably connected with the inner wall of scraper strip 84. The fallen ice crystals will enter collection box 91. After the device is used, tank body 1 returns to temperature, causing the temperature in collection box 91 to rise, and the ice crystals inside collection box 91 will melt and be discharged from the opened threaded rod 92, so that the ice crystals separated in the heat exchanger can be collected and melted and discharged, preventing them from staying in tank body 1 all the time, thereby affecting subsequent air heat exchange.

[0031] Working principle: After the outside air enters the tank body 1, it will cool down rapidly. The moisture in the air will wrap around the dust and impurities to form ice crystals and adhere to the inner wall of the tank body 1. At this time, the rotation of the impeller 23 will drive the magnet 2 83 to rotate. The magnet 2 83 drives the magnet 1 82 to rotate through the magnetic attraction force. The magnet 1 82 drives the rotating ring 81 to rotate. The rotating ring 81 drives the scraper 84 to rotate. The scraper 84 scrapes off the ice crystals on the inner wall of the tank body 1 to prevent the accumulation of ice crystals from affecting the subsequent air intake and discharge.

[0032] When the rotating ring 81 rotates, it will drive the elastic telescopic rod 851 to rotate, and the elastic telescopic rod 851 will drive the guide block 852 to rotate. After the guide block 852 rotates, it will contact the heat conduction pipe 12 through the arc surface and be pushed in the opposite direction by the heat conduction pipe 12. The guide block 852 pushes the slider 854 to slide on the inner wall of the scraper 84 through the push rod 853, and the slider 854 drives the scraper rod 855 to move on the surface of the scraper bar 84. The scraper rod 855 will scrape off the ice crystals adhered to the surface of the scraper bar 84 due to scraping, so as to achieve self-cleaning of the scraper bar 84, and the fallen ice crystals will enter the collection box 91. After the device is used, the tank body 1 returns to temperature, so that the temperature in the collection box 91 increases, and the ice crystals inside the collection box 91 will melt and be discharged from the opened threaded rod 92, so that the ice crystals separated in the heat exchanger can be collected and melted and discharged, preventing them from staying in the tank body 1 and affecting the subsequent air heat exchange.

[0033] The present invention provides a heat exchanger for a refrigerated dryer. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A heat exchanger for a refrigerated dryer, comprising a tank (1), characterized in that: The inner wall of the tank body (1) is fixedly connected to a partition plate (11), the inner wall of the partition plate (11) is fixedly connected to a heat conduction pipe (12), the left side of the tank body (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a transmission rod (21), the circumferential surface of the transmission rod (21) is fixedly connected to an impeller 1 (22), the circumferential surface of the transmission rod (21) is fixedly connected to an impeller 2 (23), the front left side of the tank body (1) is fixedly connected to an air outlet pipe (3), the rear right side of the tank body (1) is fixedly connected to an air inlet pipe (4), the right side of the tank body (1) is fixedly connected to a discharge pipe (5), and the left side of the tank body (1) is fixedly connected to a feed pipe (6); The inner wall of the tank body (1) is provided with a retention mechanism (7), the inner wall of the tank body (1) is provided with a scraping mechanism (8), and the lower surface of the tank body (1) is provided with a collecting mechanism (9); The collecting mechanism (9) comprises a collecting box (91) and a threaded rod (92); the collecting box (91) is mounted on the lower surface of the tank body (1); and the threaded rod (92) is threadedly connected to the left side of the collecting box (91); The circumferential surface of the transmission rod (21) is rotatably connected to the inner wall of the tank body (1); the number of the partitions (11) is two, and the two partitions (11) are symmetrically distributed on the inner wall of the tank body (1); the number of the heat conduction pipes (12) is multiple, and the multiple heat conduction pipes (12) are distributed in a circular array between the two partitions (11); The retention mechanism (7) comprises a fixed plate (71), a retaining ring (72), a third impeller (73), an air inlet hole (74) and an air outlet hole (75); the fixed plate (71) is fixedly connected to the inner wall of the tank body (1); the retaining ring (72) is fixedly connected to the inner wall of the fixed plate (71); the third impeller (73) is fixedly connected to the circumferential surface of the transmission rod (21); the air inlet hole (74) is provided on the right side of the fixed plate (71); and the air outlet hole (75) is provided on the left side of the fixed plate (71); Both sides of the impeller three (73) are in contact with the inner wall of the fixed disk (71), the surface of the impeller three (73) is in contact with the inner surface of the retaining ring (72), the inner wall of the fixed disk (71) is in contact with the circumferential surface of the heat conducting pipe (12), and the inner wall of the fixed disk (71) is rotatably connected to the circumferential surface of the transmission rod (21).

2. A heat exchanger for a refrigerated dryer according to claim 1, characterized in that: The scraping mechanism (8) comprises a rotating ring (81), a first magnet (82), a second magnet (83), a scraping strip (84) and a reciprocating mechanism (85); the rotating ring (81) is rotatably connected to the inner wall of the tank body (1); the first magnet (82) is fixedly connected to the inner wall of the rotating ring (81); the second magnet (83) is fixedly connected to the surface of the second impeller (23); a plurality of scraping strips (84) are provided, and the plurality of scraping strips (84) are fixedly connected to both sides of the rotating ring (81); and a reciprocating mechanism (85) is provided on the inner surface of the rotating ring (81).

3. A heat exchanger for a refrigerated dryer according to claim 2, characterized in that: The surface of the scraper strip (84) is in contact with the inner wall of the tank body (1), and the first magnet (82) and the second magnet (83) are magnetically attracted to each other.

4. A heat exchanger for a refrigerated dryer according to claim 3, characterized in that: The reciprocating mechanism (85) comprises an elastic telescopic rod (851), a guide block (852), a push rod (853), a slider (854) and a scraper rod (855); the elastic telescopic rod (851) is fixedly connected to the inner surface of the rotating ring (81); the guide block (852) is fixedly connected to one end of the elastic telescopic rod (851) away from the rotating ring (81); the push rod (853) is rotatably connected to both sides of the guide block (852) via a torsion spring; the slider (854) is rotatably connected to one end of the push rod (853) away from the guide block (852) via a torsion spring; and the scraper rod (855) is fixedly connected to both sides of the slider (854).

5. A heat exchanger for a refrigerated dryer according to claim 4, characterized in that: The surface of the scraper rod (855) contacts the side of the scraper strip (84) away from the tank body (1), the arc surface of the guide block (852) contacts the circumferential surface of the heat conducting pipe (12), and the surface of the slider (854) is slidably connected to the inner wall of the scraper strip (84).

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