Air source heat pump energy-saving heat exchange device for crude oil heating

Abstract

The present invention relates to the technical field of air source heat pumps, and specifically to an energy-saving heat exchange device of an air source heat pump for crude oil heating, comprising an evaporator main body, base plates being provided on both sides of the evaporator main body, a plurality of heat exchange fins being provided on the base plates, lead screws being rotatably connected on both sides of the base plates, belts being sleeved between the ends of the lead screws on both sides, and mechanisms such as scraping plates being provided, when a large amount of dust adheres to a plurality of heat exchange fins, the plurality of scraping plates will clean the dust on the surfaces of the heat exchange fins, and when the scraping plates are cleaning the heat exchange fins, if impurities that are difficult to clean, such as dried bird droppings, etc., adhere to the heat exchange fins, the sliding pipe will drip cleaning liquid into the transverse plate, so as to facilitate the cleaning of the bird droppings, and by cleaning the surfaces of the plurality of heat exchange fins, the heat exchange effect of the plurality of heat exchange fins can be guaranteed, making the entire evaporator main body more energy-saving and environmentally friendly to use.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pumps, in particular to an air source heat pump energy-saving heat exchange device for crude oil heating. Background Art

[0002] Crude oil is a complex mixture containing various hydrocarbon compounds, and its viscosity is significantly affected by temperature. At low temperatures, crude oil has a high viscosity and poor fluidity. To ensure its fluidity, it is usually necessary to heat the crude oil. An air-source heat pump is a device that uses heat in the air to achieve heating or cooling. It mainly consists of an evaporator, a compressor, a condenser, and an expansion valve. It transfers heat through the state change of the refrigerant. Its operating principle is based on the reverse Carnot cycle. It is a highly efficient energy conversion device. Due to its efficient heating capacity, air-source heat pumps have been widely used as crude oil heating equipment.

[0003] When an air source heat pump exchanges heat with the heat in the air, it usually relies on an evaporator to exchange heat. However, the evaporator in an existing air source heat pump usually lacks a cleaning mechanism when in use. Since the evaporator is usually set outdoors, as the use time increases, more dust and impurities that are difficult to clean, such as bird droppings, will accumulate on its surface. If the dust and impurities on the surface of the evaporator are not cleaned, the dust will form an insulating layer on the surface of the evaporator, affecting the thermal conductivity of the entire evaporator, causing the performance of the air source heat pump to gradually decline and unable to maintain the set temperature for heating crude oil. At this time, the heat source pump needs to consume more energy to maintain the heating temperature, wasting energy. At the same time, when the evaporator is used in autumn and winter, frost will adhere to its surface. If the frost is not removed and cleaned, it will also affect the heat exchange capacity of the entire evaporator and the use of the entire heat source pump. Summary of the Invention

[0004] The purpose of the present invention is to provide an air source heat pump energy-saving heat exchange device for crude oil heating to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an energy-saving heat exchange device of an air source heat pump for crude oil heating, comprising an evaporator main body, a base plate provided on both sides of the evaporator main body, a plurality of heat exchange fins provided on the base plate, a lead screw rotatably connected to both sides of the base plate, a belt being sleeved between the ends of the lead screws on both sides, a starting motor fixedly connected to the end of the base plate, an output end of the starting motor being connected to one of the lead screws on both sides, a top box being commonly threadedly connected on the outer side walls of the lead screws on both sides, a dust collection and defrosting mechanism being provided inside the top box; the dust collection and defrosting mechanism comprising a connecting pipe connected to the top box, a forward and reverse motor being fixedly connected to the outer side wall of the connecting pipe, a transmission rod being provided at the output end of the forward and reverse motor, a fan being fixedly connected to the end of the transmission rod.

[0006] Preferably, an air guide cover is provided on the outside of the top box, the interior of the air guide cover is connected to the connecting pipe, ash guide pipes are provided on both sides of the tail of the connecting pipe, an electromagnetic switch valve is provided inside the ash guide pipe, and an ash storage box is provided at one end of the ash guide pipe away from the connecting pipe. The back of the ash storage box is hollowed out, and a drawer is slidingly provided inside the ash storage box.

[0007] Preferably, a turntable is fixedly connected to the outer wall of the transmission rod, a plurality of sliding grooves are provided inside the turntable, the inner walls of the plurality of sliding grooves are all slidably connected to contact magnets, a tension spring is provided at the tail of the contact magnet, and the end of the tension spring away from the contact magnet is fixedly connected to the inner wall of the sliding groove.

[0008] Preferably, a vertical plate is slidably provided at the bottom of the connecting tube, and a transverse magnetic plate is fixedly connected to the end of the vertical plate. The magnetic poles of the transverse magnetic plate are the same as the magnetic poles of the contact magnet. Pressure springs are fixedly connected on both sides of the transverse magnetic plate, and one end of the pressure spring away from the transverse magnetic plate is fixedly connected to the inner wall of the connecting tube. A trigger magnet is provided at the bottom of the vertical plate.

[0009] Preferably, a preheater is provided on the top of the top box, and an air intake pipe is provided in the interior of the preheater, and the end of the air intake pipe away from the preheater is connected to the interior of the connecting pipe, and a ventilation box is provided at the end of the ventilation box, and a baffle is slidably connected to the inner wall of the ventilation box, and a vent is provided on the side of the baffle located outside the ventilation box, and an inner magnetic plate is provided at the end of the baffle, and the magnetic poles of the inner magnetic plate are the same as the magnetic poles of the contact magnet, and a return spring is provided between the inner magnetic plate and the ventilation box.

[0010] Preferably, a bottom box is provided on the outer wall of the top box, and sliding rails are provided on both sides of the interior of the bottom box. The inner wall of the sliding rail is slidably connected with a mounting plate, an inner spring is provided inside the sliding rail, and the end of the inner spring is in contact with the outer wall of the mounting plate, and a cleaning mechanism is provided inside the mounting plate.

[0011] Preferably, the cleaning mechanism includes a plurality of sliding grooves provided on the outer side wall of the mounting plate, the inner side walls of the plurality of sliding grooves are slidably connected with a horizontal plate, a plurality of scraping plates are provided on the horizontal plate, a return spring is provided on the inner side wall of the sliding groove, the end of the return spring is in contact with the horizontal plate, a through hole is provided on the horizontal plate, a plurality of drip holes are provided on the horizontal plate, and the plurality of drip holes are connected with the through hole.

[0012] Preferably, a liquid storage tank is provided on the outer side wall of the mounting plate, and the side walls of the liquid storage tank and the bottom box are both provided with pluggable liquid filling ports, and a plurality of sliding tubes are slidingly provided inside the liquid storage tank, and the ends of the plurality of sliding tubes located inside the liquid storage tank are sealed, and the ends away from the interior of the liquid storage tank are open, a pressing spring is provided on the outer side wall of the sliding tube, and a liquid inlet hole is provided inside the sliding tube, and the sliding tube is located directly above the through hole.

[0013] Preferably, a toothed plate is fixedly connected to the outer wall of the liquid storage tank, a gear is rotatably connected to the inside of the bottom box, the gear is meshed with the toothed plate, a connecting plate is slidably connected to the inside of the bottom box, an inner plate is provided at the end of the connecting plate, a plurality of soft brushes are provided on the inner plate, the lower side of the connecting plate is meshed with the gear, a side magnetic block is provided at the tail of the connecting plate, and the magnetic poles of the side magnetic block are the same as the magnetic poles of the trigger magnet.

[0014] Preferably, a pipe is provided in communication with the interior of the evaporator body, and a heat source pump is provided at one end of the pipe away from the evaporator body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the arrangement of scraping plates and other mechanisms, when there is a lot of dust attached to multiple heat exchange fins, multiple scraping plates will clean the dust on the surface of the heat exchange fins. When the scraping plates are cleaning the heat exchange fins, if there are impurities that are difficult to clean, such as dried bird droppings, on the heat exchange fins, the sliding pipe will drip cleaning liquid into the cross plate to facilitate the cleaning of the bird droppings. By cleaning the surfaces of multiple heat exchange fins, the heat exchange effect of multiple heat exchange fins can be guaranteed, making the entire evaporator body more energy-saving and environmentally friendly.

[0017] 2. Through the arrangement of soft brushes and other mechanisms, when the entire evaporator body is used in autumn and winter and frost condenses on the surface of the heat exchange fins, multiple soft brushes will scrape and clean the frost on the surface of the heat exchange fins. While the soft brushes are scraping and cleaning the frost on the surface of the heat exchange fins, the air guide cover will also discharge preheated air to the surface of the heat exchange fins for heat exchange with the refrigerant, thereby ensuring the heat absorption effect of the evaporator body in a cold environment, improving the heat exchange efficiency of the air heat source pump, and reducing the energy consumption of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0021] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0022] Figure 5 for Figure 4 A magnified view of middle A;

[0023] Figure 6 This is a schematic diagram of the positions of the through holes and drip holes of the present invention;

[0024] Figure 7 It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0025] Figure 8 It is a schematic diagram of the local structure of the present invention Figure 4 ;

[0026] Figure 9 It is a schematic diagram of the local structure of the present invention Figure 5 ;

[0027] Figure 10 It is a schematic diagram of the local structure of the present invention Figure 6 ;

[0028] Figure 11 It is a schematic diagram of the local planar structure of the present invention;

[0029] Figure 12 This is a schematic diagram of the internal structure of the connecting pipe of the present invention;

[0030] Figure 13 for Figure 2 Enlarged view of middle B;

[0031] Figure 14 It is a schematic diagram of the planar structure of the present invention.

[0032] In the attached figure, 1, evaporator body; 2, heat exchange fins; 3, starting motor; 4, lead screw; 5, belt; 6, top box; 7, bottom box; 8, scraper plate; 9, air guide cover; 10, mounting plate; 11, liquid storage tank; 12, through hole; 13, pressing spring; 14, slide pipe; 15, liquid inlet hole; 16, return spring; 17, horizontal plate; 18, drip hole; 19, inner plate; 20, soft brush; 21, connecting plate; 22, side magnetic block; 23, gear; 24, tooth plate; 25, preheater ; 26. Air inlet pipe; 27. Connecting pipe; 28. Ash storage box; 29. ​​Drawer; 30. Ash guide pipe; 31. Forward and reverse motor; 32. Transmission rod; 33. Vertical plate; 34. Pressure spring; 35. Turntable; 36. Horizontal magnetic plate; 37. Contact magnet; 38. Tension spring; 39. Ventilation box; 40. Baffle; 41. Inner magnetic plate; 42. Return spring; 43. Vent; 44. Pipeline; 45. Heat source pump; 46. Base plate; 47. Fan; 48. Inner spring; 49. Slide rail. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 - Figure 14 The energy-saving heat exchange device of an air source heat pump for heating crude oil includes an evaporator body 1. A base plate 46 is provided on both sides of the evaporator body 1. A plurality of heat exchange fins 2 are provided on the base plate 46. A lead screw 4 is rotatably connected to both sides of the base plate 46. A belt 5 is sleeved between the ends of the lead screws 4 on both sides. A starter motor 3 is fixedly connected to the end of the base plate 46. The output end of the starter motor 3 is connected to one of the lead screws 4 on both sides. A top box 6 is commonly threadedly connected to the outer side walls of the lead screws 4 on both sides. A dust collection and defrosting mechanism is provided inside the top box 6; the dust collection and defrosting mechanism includes a connecting pipe 27 (such as a connecting pipe 27) connected to the top box 6. Figure 10 As shown), a forward and reverse motor 31 is fixedly connected to the outer wall of the connecting pipe 27, a transmission rod 32 is provided at the output end of the forward and reverse motor 31, and a fan 47 is fixedly connected to the end of the transmission rod 32.

[0035] The outside of the top box 6 is connected to the air guide cover 9 (such as Figure 4As shown in the figure, the interior of the air guide cover 9 is connected to the connecting pipe 27, and the ash guide pipes 30 are provided on both sides of the tail of the connecting pipe 27. The ash guide pipes 30 are provided inside the ash guide pipes 30. The electromagnetic switch valve is provided inside the ash guide pipes 30. The end of the ash guide pipes 30 away from the connecting pipe 27 is connected to the ash storage box 28. The back of the ash storage box 28 is hollowed out, and a drawer 29 is slidingly provided inside the ash storage box 28.

[0036] A rotating disk 35 (such as Figure 12 As shown), a plurality of sliding grooves are provided inside the turntable 35, and the inner side walls of the plurality of sliding grooves are all slidably connected to contact magnets 37. A tension spring 38 is provided at the tail of the contact magnet 37, and one end of the tension spring 38 away from the contact magnet 37 is fixedly connected to the inner side wall of the sliding groove.

[0037] A vertical plate 33 is slidingly provided at the bottom of the connecting tube 27, and a transverse magnetic plate 36 is fixedly connected to the end of the vertical plate 33. The magnetic poles of the transverse magnetic plate 36 are the same as the magnetic poles of the contact magnet 37. Pressure springs 34 are fixedly connected to both sides of the transverse magnetic plate 36. The end of the pressure spring 34 away from the transverse magnetic plate 36 is fixedly connected to the inner wall of the connecting tube 27. A trigger magnet is provided at the bottom of the vertical plate 33.

[0038] A preheater 25 is provided on the top of the top box 6, and an air intake pipe 26 is provided inside the preheater 25. One end of the air intake pipe 26 away from the preheater 25 is connected to the inside of the connecting pipe 27, and a ventilation box 39 is provided at the end of the air intake pipe 26. A baffle 40 is slidingly connected through the inner wall of the ventilation box 39, and a vent 43 is provided on the side of the baffle 40 located outside the ventilation box 39. An inner magnetic plate 41 is provided at the end of the baffle 40, and the magnetic poles of the inner magnetic plate 41 are the same as the magnetic poles of the contact magnet 37. A return spring 42 is provided between the inner magnetic plate 41 and the ventilation box 39.

[0039] The bottom box 7 is provided on the outer wall of the top box 6. Slide rails 49 are provided on both sides of the interior of the bottom box 7. The inner wall of the slide rail 49 is slidably connected to the mounting plate 10. An inner spring 48 is provided inside the slide rail 49. The end of the inner spring 48 contacts the outer wall of the mounting plate 10. A cleaning mechanism is provided inside the mounting plate 10.

[0040] The cleaning mechanism includes a plurality of sliding grooves on the outer wall of the mounting plate 10, the inner walls of the plurality of sliding grooves are slidably connected with a horizontal plate 17, a plurality of scraping plates 8 are provided on the horizontal plate 17, a return spring 16 is provided on the inner wall of the sliding groove, the end of the return spring 16 contacts the horizontal plate 17, a through hole 12 is provided on the horizontal plate 17, and a plurality of drip holes 18 (such as Figure 6 As shown), a plurality of drip holes 18 are connected to the through hole 12;

[0041] A liquid storage tank 11 is provided on the outer wall of the mounting plate 10. The liquid storage tank 11 and the side walls of the bottom box 7 are both provided with pluggable liquid filling ports. A plurality of sliding tubes 14 are slidingly provided inside the liquid storage tank 11. The plurality of sliding tubes 14 are located inside the liquid storage tank 11 at one end which is sealed and at the other end which is away from the interior of the liquid storage tank 11 which is open. A pressing spring 13 is provided on the outer wall of the sliding tube 14. A liquid inlet hole 15 is provided inside the sliding tube 14. The sliding tube 14 is located directly above the through hole 12.

[0042] In this embodiment, when the entire evaporator body 1 is in use, the heat energy in the air will be exchanged with the refrigerant flowing inside the base plate 46 through the multiple heat exchange fins 2 on the surface of the base plate 46, so as to achieve the effect of heating the crude oil pipe (this is a prior art and will not be elaborated on in detail). During the heat exchange process of the multiple heat exchange fins 2, if a lot of dust accumulates on the surface of the multiple heat exchange fins 2, affecting the heat exchange effect, the operator can turn on the starting motor 3 and drive the two lead screws 4 to rotate through the cooperation with the belt 5. When the two lead screws 4 rotate synchronously, they will drive the bottom box 7 and the top box 6 to move on the base plate 46. When the bottom box 7 moves down, the multiple scraping plates 8 will be inserted between two adjacent heat exchange fins 2 to scrape and clean the multiple heat exchange fins 2 (refer to Figure 3When the scraper plate 8 comes into contact with the bird droppings with strong adhesion, the bird droppings will block the movement of the scraper plate 8, and the bottom box 7 will continue to move downward under the drive of the lead screw 4. As the bottom box 7 drives the mounting plate 10 to move downward, the slide tube 14 on the liquid storage tank 11 will be nearly inserted into the through hole 12. After the end of the slide tube 14 is inserted into the through hole 12, the bottom of the larger slide tube 14 will prevent the slide tube 14 from being completely inserted into the through hole 12. As the mounting plate 10 continues to push downward, the slide tube 14 will overcome the elastic force of the pressing spring 13 and move toward the inside of the liquid storage tank 11, allowing the liquid inlet hole 15 originally located outside the liquid storage tank 11 to enter the liquid storage tank 11. When the liquid inlet hole 15 enters the liquid storage tank 11, the liquid storage tank 1 1 The cleaning liquid stored in the interior will enter the sliding pipe 14 through the liquid inlet hole 15, and then enter the interior of the horizontal plate 17 through the through hole 12 via the sliding pipe 14, and finally drip onto the scraping plate 8 through the multiple dripping holes 18. When the cleaning liquid drips onto the scraping plate 8, the bird droppings with strong adhesion can be quickly dissolved and softened, making it easier for the scraping plate 8 to clean it. While the scraping plate 8 is scraping and cleaning the dust on the surface of the heat exchange fin 2, the operator can turn on the forward and reverse motor 31, and let the forward and reverse motor 31 drive the fan 47 to reverse through the transmission rod 32. When the fan 47 reverses, negative pressure is generated, and the negative pressure will absorb the dust cleaned by the scraping plate 8 through the air guide cover 9. When the air guide cover 9 absorbs the dust into the connecting pipe 27 through the negative pressure, the dust entering the connecting pipe 27 will enter the ash storage box 28 through the ash guide pipe 30.

[0043] Example 2: Please refer to Figure 1 - Figure 14 This embodiment further illustrates the first embodiment. A toothed plate 24 (such as Figure 9 As shown), the bottom box 7 is internally connected to a gear 23, which is engaged with a toothed plate 24. The bottom box 7 is internally connected to a connecting plate 21 for sliding movement. The end of the connecting plate 21 is provided with an inner plate 19, and a plurality of soft brushes 20 (as shown) are provided on the inner plate 19. Figure 8 As shown), the lower side of the connecting plate 21 is engaged with the gear 23, and the tail of the connecting plate 21 is provided with a side magnetic block 22, the magnetic pole of the side magnetic block 22 is the same as the magnetic pole of the trigger magnet (as shown Figure 11 As shown, the interior of the evaporator body 1 is connected to a pipe 44 (as shown Figure 14 As shown in FIG, a heat source pump 45 is provided at one end of the pipe 44 away from the evaporator body 1 .

[0044] In this embodiment, when used in autumn and winter, if frost is found on the surface of multiple heat exchange fins 2, affecting the heat exchange efficiency of multiple heat exchange fins 2, the same as the above principle can be used to turn on the starting motor 3 to move the entire top box 6 and the bottom box 7 downward. At this time, the operator can drive the transmission rod 32 to rotate rapidly forward through the forward and reverse motor 31. When the transmission rod 32 drives the fan 47 to rotate rapidly forward, it will drive the turntable 35 on its surface to rotate synchronously and rapidly. At this time, under the action of a large centrifugal force, the fan 47 will rotate rapidly forward. When the contact magnet 37 is located outside the turntable 35, it will be close to the horizontal magnetic plate 36. Under the action of the repulsive magnetic force, the vertical plate 33 will overcome the elastic force of the pressure spring 34 and move downward, so that the trigger magnet at the bottom of the vertical plate 33 is located on the positive side of the side magnetic block 22. When the trigger magnet at the bottom of the vertical plate 33 is located on the positive side of the side magnetic block 22, the repulsive magnetic force between the two will cause the connecting plate 21 to move into the bottom box 7. When the connecting plate 21 moves into the bottom box 7 and pushes the inner plate 19 and the soft brush 20, the gear 23 will cause the mounting plate 10 to drive the multiple scraping plates 8 to retract into the inside of the bottom box 7. When the soft brush 20 extends out of the bottom box 7 and the scraping plates 8 retract into the bottom box 7, the multiple soft brushes 20 will replace the scraping plates 8 and be inserted between the multiple heat exchange fins 2. The relatively soft soft brushes 20 are in contact with the heat exchange fins 2. Since the frost is unevenly distributed on the heat exchange fins 2, it may accumulate in the depressions of the heat exchange fins 2. The scraper 8 is difficult to completely clean the frost in these positions, which easily causes frost residue. The soft brush 20 can enter the gap with the bottom box 7 and clean it through the soft bristles, so as to clean the frost more thoroughly. When the transmission rod 32 drives the turntable 35 to rotate rapidly, the multiple contact magnets 37 located on the outside of the turntable 35 rotate with the turntable 35 to the side of the inner magnetic plate 41. At this time, under the action of the repulsive magnetic force, the inner magnetic plate 41 pushes the baffle 40 to move to the right (refer to Figure 13 ), when the baffle 40 moves to the right, the vent 43 will enter the interior of the vent box 39. When the vent 43 enters the interior of the vent box 39, the air preheated in the preheater 25 will enter the interior of the connecting pipe 27 through the air inlet pipe 26, and then be blown into the air guide cover 9 by the fan 47. The air is blown to the surface of multiple heat exchange fins 2 by the air guide cover 9, and the preheated air is blown to the heat exchange fins 2, which is conducive to heat exchange with the refrigerant, thereby ensuring the heat absorption effect of the evaporator body 1 in a cold environment, improving the heat exchange efficiency of the heat source pump 45, and reducing the energy consumption of the equipment.

[0045] It should be noted that the scraper plate 8 is slightly tilted, so when the dripping holes 18 drip cleaning liquid onto the surface of the scraper plate 8 , the cleaning liquid will flow along the slightly tilted dripping holes 18 until it adheres to the scraper plate 8 .

[0046] It should be noted that when the transmission rod 32 rotates rapidly forward to drive the fan 47 to blow air, the switch valve in the ash guide pipe 30 is closed at this time to prevent the dust in the ash storage box 28 from being blown back into the connecting pipe 27. When the switch valve in the ash guide pipe 30 is closed and the connecting pipe 27 is sealed, when the fan 47 rotates to blow air, according to the air circulation principle, the air preheated in the preheater 25 can only be sucked into the inside of the connecting pipe 27 through the air inlet pipe 26, and then blown to the multiple heat exchange fins 2 through the air guide cover 9.

[0047] It should be noted that when the transmission rod 32 drives the fan 47 to reverse and suck dust, the rotation speed of the transmission rod 32 is relatively slow at this time, and the slower rotation speed is not enough to throw the contact magnet 37 to the outside of the turntable 35. When the transmission rod 32 rotates forward rapidly and throws multiple contact magnets 37 to the outside of the turntable 35, since the gaps between the multiple contact magnets 37 are small, and the lengths of the transverse magnetic plate 36 and the inner magnetic plate 41 are long, when the multiple contact magnets 37 located on the outside of the turntable 35 rotate with the turntable 35, there will always be multiple contact magnets 37 located on the sides of the transverse magnetic plate 36 and the inner magnetic plate 41. Therefore, as long as the transmission rod 32 rotates rapidly, the transverse magnetic plate 36 and the inner magnetic plate 41 will always be pushed by the repulsive magnetic force.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An air source heat pump energy-saving heat exchange device for heating crude oil, comprising an evaporator body (1), characterized in that: Both sides of the evaporator body (1) are provided with a base plate (46), a plurality of heat exchange fins (2) are provided on the base plate (46), both sides of the base plate (46) are rotatably connected to a lead screw (4), a belt (5) is sleeved between the ends of the lead screws (4) on both sides, the end of the base plate (46) is fixedly connected to a starter motor (3), the output end of the starter motor (3) is connected to one of the lead screws (4) on both sides, the outer side walls of the lead screws (4) on both sides are commonly threadedly connected to a top box (6), and a dust collection and defrosting mechanism is provided inside the top box (6); the dust collection and defrosting mechanism includes a connecting pipe (27) connected to the top box (6), the outer side wall of the connecting pipe (27) is fixedly connected to a forward and reverse motor (31), the output end of the forward and reverse motor (31) is provided with a transmission rod (32), and the end of the transmission rod (32) is fixedly connected to a fan (47); A turntable (35) is fixedly connected to the outer wall of the transmission rod (32), a plurality of sliding grooves are provided inside the turntable (35), and the inner walls of the plurality of sliding grooves are all slidably connected to contact magnets (37), and a tension spring (38) is provided at the tail of the contact magnet (37), and one end of the tension spring (38) away from the contact magnet (37) is fixedly connected to the inner wall of the sliding groove; A vertical plate (33) is slidably provided at the bottom of the connecting tube (27), and a transverse magnetic plate (36) is fixedly connected to the end of the vertical plate (33). The magnetic pole of the transverse magnetic plate (36) is the same as the magnetic pole of the contact magnet (37). Pressure springs (34) are fixedly connected to both sides of the transverse magnetic plate (36). One end of the pressure spring (34) away from the transverse magnetic plate (36) is fixedly connected to the inner wall of the connecting tube (27). A trigger magnet is provided at the bottom of the vertical plate (33); A bottom box (7) is provided on the outer wall of the top box (6), and slide rails (49) are provided on both sides of the interior of the bottom box (7). The inner wall of the slide rail (49) is slidably connected to the mounting plate (10), and an inner spring (48) is provided inside the slide rail (49). The end of the inner spring (48) contacts the outer wall of the mounting plate (10), and a cleaning mechanism is provided inside the mounting plate (10); A liquid storage box (11) is provided on the outer wall of the mounting plate (10), and the side walls of the liquid storage box (11) and the bottom box (7) are both provided with pluggable liquid filling ports. A plurality of sliding tubes (14) are provided inside the liquid storage box (11) for sliding movement. One end of the plurality of sliding tubes (14) located inside the liquid storage box (11) is sealed, and the other end away from the inside of the liquid storage box (11) is open. A pressing spring (13) is provided on the outer wall of the sliding tube (14), and a liquid inlet hole (15) is provided inside the sliding tube (14). The sliding tube (14) is located directly above the through hole (12); A toothed plate (24) is fixedly connected to the outer wall of the liquid storage tank (11), a gear (23) is rotatably connected to the interior of the bottom box (7), the gear (23) is meshed with the toothed plate (24), a connecting plate (21) is slidably connected to the interior of the bottom box (7), an inner plate (19) is provided at the end of the connecting plate (21), a plurality of soft brushes (20) are provided on the inner plate (19), the lower side of the connecting plate (21) is meshed with the gear (23), a side magnetic block (22) is provided at the tail of the connecting plate (21), and the magnetic pole of the side magnetic block (22) is the same as the magnetic pole of the trigger magnet; When the transmission rod (32) drives the fan (47) to rotate rapidly, it will drive the turntable (35) on its surface to rotate synchronously and rapidly, causing the contact magnet (37) to overcome the tension of the tension spring (38) and be thrown to the outside of the turntable (35). Under the action of the repulsive magnetic force, the vertical plate (33) will overcome the elastic force of the pressure spring (34) and move downward, so that the trigger magnet at its bottom is located on the positive side of the side magnetic block (22). Under the action of the repulsive magnetic force of the two, the connecting plate (21) will move into the bottom box (7), and when the inner plate (19) and the soft brush (20) are pushed, under the action of the gear (23), the mounting plate (10) will drive the multiple scraping plates (8) to retract into the inside of the bottom box (7). When the soft brush (20) extends out of the bottom box (7) and the scraping plates 8 are retracted into the bottom box (7), the multiple soft brushes (20) will replace the scraping plates (8) and be inserted between the multiple heat exchange fins (2).

2. The air source heat pump energy-saving heat exchange device for crude oil heating according to claim 1 is characterized in that: The outside of the top box (6) is connected to an air guide cover (9), the interior of the air guide cover (9) is connected to the connecting pipe (27), and both sides of the tail of the connecting pipe (27) are connected to ash guide pipes (30), and an electromagnetic switch valve is provided inside the ash guide pipe (30). The end of the ash guide pipe (30) away from the connecting pipe (27) is connected to an ash storage box (28), the back of the ash storage box (28) is hollowed out, and a drawer (29) is slidably provided inside the ash storage box (28).

3. The air source heat pump energy-saving heat exchange device for crude oil heating according to claim 1 is characterized in that: A preheater (25) is provided on the top of the top box (6), and an air intake pipe (26) is provided inside the preheater (25). One end of the air intake pipe (26) away from the preheater (25) is connected to the inside of the connecting pipe (27). A ventilation box (39) is provided at the end of the air intake pipe (26). A baffle (40) is slidably connected to the inner wall of the ventilation box (39). A ventilation port (43) is provided on one side of the baffle (40) located outside the ventilation box (39). An inner magnetic plate (41) is provided at the end of the baffle (40). The magnetic poles of the inner magnetic plate (41) are the same as the magnetic poles of the contact magnet (37). A return spring (42) is provided between the inner magnetic plate (41) and the ventilation box (39).

4. The air source heat pump energy-saving heat exchange device for crude oil heating according to claim 1 is characterized in that: The cleaning mechanism includes a plurality of sliding grooves provided on the outer wall of the mounting plate (10), the inner walls of the plurality of sliding grooves are all slidably connected to a transverse plate (17), a plurality of scraping plates (8) are provided on the transverse plate (17), a return spring (16) is provided on the inner wall of the sliding groove, the end of the return spring (16) contacts the transverse plate (17), a through hole (12) is provided on the transverse plate (17), a plurality of drip holes (18) are provided on the transverse plate (17), and the plurality of drip holes (18) are connected to the through hole (12).

5. The air source heat pump energy-saving heat exchange device for crude oil heating according to claim 1 is characterized in that: The interior of the evaporator body (1) is connected to a pipe (44), and a heat source pump (45) is provided at one end of the pipe (44) away from the evaporator body (1).

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