Adjustable finned heat exchanger

Abstract

The invention relates to the technical field of finned heat exchangers, and discloses an adjustable finned heat exchanger which comprises a shell, air passing openings are formed in the two sides of the shell, a plurality of heat exchange modules used for heat transfer are arranged in the shell, the heat exchange module located in the middle is fixed to the shell, and the air passing openings are formed in the air passing openings. The other heat exchange modules are slidably connected with the shell through guide mechanisms, the distance between the heat exchange modules can be adjusted through adjusting mechanisms, the heat exchange modules are communicated through second corrugated pipes, and fans are fixed to the inner sides of the two ends of the shell through bolts. According to the heat exchanger, through the movable heat exchange module, auxiliary shaking can be conducted on water drops, the water drops fall off from the heat exchange module, the retention time of the water drops on the heat exchange module is shortened, corrosion of the water drops to the heat exchange module is reduced, and the service life of the heat exchanger is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of finned heat exchangers, in particular to an adjustable finned heat exchanger. Background Art

[0002] Finned radiator is the most widely used heat exchange equipment in gas and liquid heat exchangers. It achieves the purpose of enhancing heat transfer by adding fins to ordinary base tubes.

[0003] Finned heat exchangers are often used as condensers or evaporators. In some air-conditioning systems, finned heat exchangers are used to switch between the two.

[0004] After searching, the Chinese patent with publication number CN211822828U discloses an air conditioner outdoor unit structure, which flows out from the bottom of the finned heat exchanger through the through hole. Due to the flow of air at the bottom, the heat transfer coefficient of the heat exchange tube at the bottom of the finned heat exchanger can be greatly enhanced, and the overall heat transfer efficiency can be improved. However, there are still the following problems: 1. The outdoor unit of the air conditioner has different functions in cooling and heating in the air conditioning system. In the heating process, when the outdoor unit of the air conditioner is used as an evaporator, the finned heat exchanger in the outdoor unit of the air conditioner will absorb heat from the external air. Water droplets will appear on the outer wall of the heat exchanger pipe, which is easy to cause corrosion to the pipe, resulting in a reduction in the service life of the heat exchanger; 2. During the refrigeration process, when the air conditioner outdoor unit is used as a condenser, the finned heat exchanger in the air conditioner outdoor unit needs to dissipate heat quickly. However, the tube wall of the general heat exchanger is thick and the heat dissipation effect is average, resulting in low heat exchange efficiency of the heat exchanger; 3. The wind from the air conditioner outdoor unit mostly blows from one side to the other, with the finned heat exchanger blocking it in the middle, which makes the air volume when the air entering from the air inlet is small when it is discharged. Summary of the invention

[0005] Technical issues solved In view of the deficiencies in the prior art, the present invention provides an adjustable finned heat exchanger, which is mainly used to solve the problems that when the outdoor unit of the air conditioner is used as an evaporator, the finned heat exchanger in the outdoor unit of the air conditioner absorbs heat from the external air, water droplets appear on the outer wall of the pipe of the heat exchanger, which easily causes corrosion to the pipe, resulting in a reduction in the service life of the heat exchanger; and during the refrigeration process, when the outdoor unit of the air conditioner is used as a condenser, the finned heat exchanger in the outdoor unit of the air conditioner needs to dissipate heat quickly, while the pipe wall of the general heat exchanger is thick and the heat dissipation effect is average, resulting in low heat exchange efficiency of the heat exchanger.

[0006] Technical Solution To achieve the above object, the present invention provides the following technical solutions: A heat exchanger with adjustable fins comprises a shell, both sides of which are provided with air ports, a plurality of heat exchange modules for heat transfer are arranged in the shell, the heat exchange module in the middle is fixed to the shell, and the other heat exchange modules are slidably connected to the shell through a guide mechanism, the distance between the heat exchange modules can be adjusted by an adjustment mechanism, and the heat exchange modules are connected through a second bellows, fans are fixed to the inner sides of both ends of the shell by bolts, sealing and adjusting mechanisms for guiding wind direction are arranged on the inner sides of both ends of the shell, external joints are arranged on the outer walls of both sides of the shell, and the two external joints are respectively connected to the two outermost heat exchange modules through a first bellows, a drain pipe is welded to the bottom of the shell, and the drain pipe is connected to the inside of the shell, and a plug is threadedly connected to the bottom end of the drain pipe.

[0007] Furthermore, the heat exchange module includes a frame, which is arranged between the inner walls on both sides of the shell, and a plurality of evenly distributed connecting pipes are welded between the inner walls on both sides of the frame, and a plurality of connecting elbows are welded on the outer walls on both sides of the frame, and the connecting pipes are connected with the connecting elbows to form a complete pipeline, and a plurality of fin groups are slidably connected to the circumferential outer sides of the plurality of connecting pipes, and the plurality of fin groups are evenly distributed, at least one guide groove is provided on the top outer wall of the frame, and the top of the fin group passes through the guide groove and slides in the guide groove, and at least one liquid port is provided on the bottom outer wall of the frame.

[0008] On the basis of the above scheme, the fin group includes a first fin and a second fin, the first fin and the second fin are both slidably connected to the circumferential outer side of the connecting tube, and the first fin and the second fin of the same fin group are in contact, and the top of the frame is provided with a combined component that enables multiple first fins and second fins to move synchronously, and the circumferential outer wall of the connecting tube is provided with a dewatering component for cleaning the surface of the connecting tube.

[0009] On the basis of the above scheme, the combined assembly includes a connecting cover, which is fixed to the top of the frame by bolts. The top inner wall of the connecting cover is connected to a gear through an axis rotation. A first rack is welded on the top of multiple first fins, and a second rack is welded on the top of multiple second fins. The first rack and the second rack are both meshed with the gear, and a power mechanism for driving the gear to rotate is provided on the top of the shell.

[0010] On the basis of the above scheme, the power mechanism includes a slide groove, which is opened on the top outer wall of the shell, and a slide seat is slidably connected in the slide groove. A stepper motor is fixed to the bottom inner wall of the slide seat by bolts, and the output shaft of the stepper motor is connected to the second pulley through the slide seat key. The top outer walls of multiple connecting covers are rotatably connected to the first pulley, and the first pulley is fixed to the gear by an axis, and multiple first pulleys and second pulleys are driven by belts.

[0011] On the basis of the above-mentioned scheme, the dewatering component includes a plurality of first magnetic rings and second magnetic rings, and the plurality of first magnetic rings and second magnetic rings are all slidably connected on the circumferential outer wall of the connecting tube, and the first magnetic ring is in contact with the first fin, and the second magnetic ring is in contact with the second fin. Scraping rings are bonded to the back sides of the plurality of first magnetic rings, second magnetic rings and the first fins and the second fins, and the scraping rings are in contact with the circumferential outer wall of the connecting tube, the first magnetic ring and the second magnetic ring located in the same fin group are attracted to each other, and the first magnetic ring and the second magnetic ring between adjacent fin groups repel each other.

[0012] Furthermore, the guide mechanism includes two baffles, both of which are welded between the inner walls on both sides of the shell, and the bottoms of the two baffles are fixed to the bottom inner walls of the shell, two slide rails are fixed between the two baffles by bolts, and the two slide rails are respectively fixed to the inner walls on both sides of the shell, and the sliding heat exchange module is slidably connected to the slide rails.

[0013] Furthermore, the adjustment mechanism includes an electric telescopic rod, which is fixed to the top outer wall of the shell by bolts, and the piston end of the electric telescopic rod is fixed to a connecting frame by bolts, and the bottom of the connecting frame is fixed to at least one fixed shaft by bolts, and the top outer wall of the shell is provided with the same number of avoidance grooves as the fixed shafts, and the bottom end of the fixed shaft is rotatably connected to at least two force arms through the avoidance grooves, and the other end of the force arm is rotatably connected to the heat exchange module.

[0014] Furthermore, the sealing and adjusting mechanism includes a plurality of air guide plates, and the plurality of air guide plates are rotatably connected between the inner walls on both sides of the shell. A connecting groove is provided on one side of the plurality of air guide plates, and a connecting rod is rotatably connected in the connecting groove. A connecting shaft is welded on one side of one of the air guide plates, and a fixing tube is welded on one side of both ends of the shell, and one end of the connecting shaft passes through the shell and is key-connected to the fixing tube with a turning handle, and a locking mechanism for fixing the angle of the air guide plate is provided on an outer wall of one side of the fixing tube.

[0015] Based on the above scheme, the locking mechanism includes a threaded hole, which is opened through the outer wall of one side of the fixed tube. A fixing screw is threadedly connected to the threaded hole, and one end of the fixing screw is in contact with the connecting shaft, and the annular surface where the connecting shaft and the fixing screw are in contact is provided with multiple anti-slip grooves.

[0016] Beneficial Effects Compared with the prior art, the present invention provides an adjustable fin heat exchanger, which has the following beneficial effects: 1. The present invention uses a movable heat exchange module to assist in shaking water droplets, so that the water droplets fall from the heat exchange module, thereby reducing the residence time of the water droplets on the heat exchange module, reducing the corrosion of the heat exchange module by the water droplets, and increasing the service life of the heat exchanger.

[0017] 2. The present invention uses movable fins. When the heat exchanger is an evaporator, the fin group is a whole, and the distance between the fins is large, which is convenient for cleaning water droplets. When the heat exchanger is a condenser, the fin group is divided into two fins, the distance between the fins becomes smaller, and the contact area with the air becomes larger, thereby improving the heat dissipation efficiency of the heat exchanger.

[0018] 3. The present invention is provided with a water removal component, which can scrape off the water droplets on the connecting pipe, reduce the adhesion time of the water droplets on the heat exchange module, and thus increase the service life of the heat exchanger.

[0019] 4. The present invention is provided with a sealing and adjusting mechanism, which can adjust the airflow in the shell according to demand, change the gas flow direction, make the air flow direction more reasonable, and improve the utilization rate of the air.

[0020] 5. The present invention is provided with an adjustment mechanism, which can not only shake the water droplets on the heat exchange module to assist the water droplets to fall, but also make the adjacent heat exchange modules contact each other to improve the thermal conductivity of the heat exchange module. The sliding seat and the connecting frame move synchronously, so that the belt can always be in a straight state, without affecting the rotation of the pulley driven by the stepper motor, thereby not affecting the movement of the first fin and the second fin, thereby improving the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the bottom three-dimensional structure of an adjustable fin-type heat exchanger proposed by the present invention; Figure 2 A schematic diagram of the upper three-dimensional structure of an adjustable fin-type heat exchanger proposed by the present invention; Figure 3 A schematic diagram of a cross-sectional structure of a shell of an adjustable fin-type heat exchanger proposed by the present invention; Figure 4 This is a schematic diagram of the enlarged structure of an adjustable air guide plate of a fin-type heat exchanger proposed by the present invention; Figure 5 The invention provides an adjustable fin heat exchanger Figure 1 A schematic diagram of the enlarged structure of part A; Figure 6 A partial cross-sectional structural schematic diagram of an adjustable fin-type heat exchanger proposed by the present invention; Figure 7 A schematic diagram of the internal structure of an adjustable fin heat exchanger proposed by the present invention; Figure 8 This is an enlarged structural schematic diagram of a connecting frame of an adjustable fin-type heat exchanger proposed by the present invention; Fig. 9 A schematic cross-sectional structure diagram of a connection cover of an adjustable fin-type heat exchanger proposed by the present invention; Fig.10This is a schematic diagram of the enlarged structure of the connecting pipe of an adjustable fin-type heat exchanger proposed by the present invention.

[0022] In the figure: 1, shell; 2, air outlet; 3, drain pipe; 4, plug cover; 5, external joint; 6, connecting frame; 7, electric telescopic rod; 8, turning handle; 9, frame; 10, connecting elbow; 11, first corrugated pipe; 12, second corrugated pipe; 13, avoidance groove; 14, slide groove; 15, fan; 16, air guide plate; 17, slide rail; 18, baffle; 19, connecting rod; 20, connecting groove; 21, connecting shaft; 22 , fixing screw; 23, threaded hole; 24, fixing pipe; 25, first pulley; 26, lever arm; 27, slide seat; 28, fixed shaft; 29, connecting cover; 30, second pulley; 31, first rack; 32, first fin; 33, guide groove; 34, second rack; 35, second fin; 36, liquid outlet; 37, connecting pipe; 38, first magnetic ring; 39, scraper ring; 40, second magnetic ring; 41, gear. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Reference Figure 1-Figure 10 , an adjustable fin heat exchanger, including a shell 1, both sides of the shell 1 are provided with air ports 2, a plurality of heat exchange modules for heat transfer are arranged in the shell 1, the heat exchange module located in the middle is fixed to the shell 1, and the remaining heat exchange modules are slidably connected to the shell 1 through a guide mechanism, the heat exchange modules can adjust the distance between the heat exchange modules through an adjustment mechanism, and the heat exchange modules are connected through a second bellows 12, when the heat exchanger is an evaporator, the movement of the heat exchange module can make water droplets fall from the heat exchange module, thereby reducing the corrosion of the water droplets to the heat exchange module, the inner sides of both ends of the heat exchange module shell 1 are fixed with fans 15 by bolts, one fan 15 blows external air into the shell 1, and the other fan 15 draws the air in the shell 1 into the atmosphere, when the heat exchanger is a condenser, multiple heat exchange modules are in contact, so that the heat exchange The heat radiation of the module is changed into heat conduction, and the fan 15 accelerates the air circulation in the heat exchanger, thereby accelerating the heat transfer and the heat dissipation efficiency of the heat exchanger. The inner sides of both ends of the shell 1 are provided with sealing and adjusting mechanisms for guiding the wind direction. The airflow in the shell 1 is adjusted according to needs to change the gas flow direction, thereby improving the heat dissipation effect of the heat exchanger. The outer walls of both sides of the shell 1 are provided with external joints 5, and the two external joints 5 are respectively connected to the two outermost heat exchange modules through the first bellows 11, and are connected to the remaining components through the external joints 5, so that the heat exchanger is connected to the air-conditioning system. A drain pipe 3 is welded at the bottom of the shell 1, and the drain pipe 3 is connected to the interior of the shell 1. The bottom end of the drain pipe 3 is threadedly connected with a plug cover 4. When the plug cover 4 is opened, the water generated inside the shell 1 will be discharged from the drain pipe 3, thereby facilitating the discharge of water from the inside of the heat exchanger.

[0027] The heat exchange module includes a frame 9, which is arranged between the inner walls on both sides of the shell 1. A plurality of evenly distributed connecting pipes 37 are welded between the inner walls on both sides of the frame 9. The connecting pipes 37 can be distributed in a straight row or in a forked row. The forked row frame distribution is preferred. A plurality of connecting elbows 10 are welded to the outer walls on both sides of the frame 9, and the connecting pipes 37 are connected to the connecting elbows 10 to form a complete pipeline. A plurality of fin groups are slidably connected to the outer circumferences of the plurality of connecting pipes 37, and the plurality of fin groups are evenly distributed. The fin groups can increase the connection. The contact area between the tube 37 and the air increases the heat exchange area of ​​the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger. At least one guide groove 33 is provided on the top outer wall of the frame 9, and the top of the fin group passes through the guide groove 33 and slides in the guide groove 33, so that the fin group can move, shake the water droplets on the fins, and make the water droplets drip from the fins. At least one liquid outlet 36 is provided on the bottom outer wall of the frame 9, and the dripping water droplets will flow from the liquid outlet 36 to the bottom inner wall of the shell 1, so that the water droplets will no longer be stored on the heat exchange module, thereby increasing the service life of the heat exchange module.

[0028] Among them, the fin group includes a first fin 32 and a second fin 35, and the first fin 32 and the second fin 35 are both slidably connected to the outer side of the circumference of the connecting tube 37, and the first fin 32 of the same fin group is in contact with the second fin 35. The top of the frame 9 is provided with a joint component that enables multiple first fins 32 and second fins 35 to move synchronously. When the heat exchanger is a condenser, the joint component causes the first fin 32 and the second fin 35 of the same fin group to be out of contact, and causes the first fin 32 and the second fin 35 of the adjacent fin group to move towards each other, thereby further increasing the contact area between the fin and the external air, and further improving the heat dissipation efficiency of the heat exchanger. The circumferential outer wall of the connecting tube 37 is provided with a dewatering component for cleaning the surface of the connecting tube 37.

[0029] In order to make the first fins 32 and the second fins 35 of the adjacent fin groups move toward each other, the combined assembly in the present invention includes a connecting cover 29, which is fixed to the top of the frame 9 by bolts, and the inner wall of the top of the connecting cover 29 is connected to a gear 41 through an axis rotation, and the tops of the plurality of first fins 32 are welded with a first rack 31, and the tops of the plurality of second fins 35 are welded with a second rack 34, and the first rack 31 and the second rack 34 are meshed with the gear 41, and the first rack 31 and the second rack 34 are meshed with each other. The gear 41 is centrally symmetrically distributed with its rotation point as the center. A power mechanism for driving the gear 41 to rotate is provided on the top of the shell 1. The gear 41 is driven to rotate by the power mechanism, so that the first rack 31 and the second rack 34 meshing with the gear 41 respectively drive the first wing 32 and the second wing 35 to move. Since the first rack 31 and the second rack 34 are centrally symmetrically distributed, the first wing 32 fixed to the first rack 31 and the second wing 35 fixed to the second rack 34 move toward each other.

[0030] In order to drive the gear 41 to rotate, the power mechanism in the present invention includes a slide groove 14, which is opened on the top outer wall of the shell 1, and a slide seat 27 is slidably connected in the slide groove 14. The bottom inner wall of the slide seat 27 is fixed with a stepper motor by bolts, and the output shaft of the stepper motor passes through the slide seat 27 and is key-connected with the second pulley 30. The top outer walls of multiple connecting covers 29 are all rotatably connected with the first pulley 25, and the first pulley 25 and the gear 41 are fixed by an axis. Belt transmission is used between multiple first pulleys 25 and the second pulleys 30. When the stepper motor is started, the stepper motor drives the second pulley 30 to rotate, and the first pulley 25 is rotated through the belt transmission, thereby driving the gear 41 to rotate. The stepper motor can accurately control the moving distance of the first fin 32 and the second fin 35, so that the distance between the adjacent first fin 32 and the second fin 35 is large and small. When the distance is large, the air circulation is large and the pressure is small, thereby driving the air flow within a small distance, thereby making the air circulation better.

[0031] In order to remove the water on the wall of the connecting pipe 37, the water removal component of the present invention includes a plurality of first magnetic rings 38 and a second magnetic ring 40, and the plurality of first magnetic rings 38 and the second magnetic rings 40 are slidably connected to the circumferential outer wall of the connecting pipe 37, and the first magnetic ring 38 is in contact with the first fin 32, and the second magnetic ring 40 is in contact with the second fin 35. The back surfaces of the plurality of first magnetic rings 38, the second magnetic rings 40, the first fin 32, and the second fin 35 are all bonded with scraper rings 39, and the scraper rings 39 are in contact with the circumferential outer wall of the connecting pipe 37, and the non-contact surface of the scraper ring 39 and the magnetic ring is The concave arc surface makes it easy to drop water drops. The first magnetic ring 38 and the second magnetic ring 40 located in the same fin group are attracted to each other, and the first magnetic ring 38 and the second magnetic ring 40 between adjacent fin groups repel each other. In the process of the first fin 32 and the second fin 35 moving toward each other, the first fin 32 and the second fin 35 will respectively drive the first magnetic ring 38 and the second magnetic ring 40 to move toward each other synchronously, thereby driving the scraper ring 39 to move. The scraper ring 39 scrapes off the water drops on the wall of the connecting pipe 37, further removes the water drops on the heat exchange module, and further improves the service life of the heat exchanger.

[0032] In order to enable the movable heat exchange module to move regularly, the guide mechanism in the present invention includes two baffles 18, and the two baffles 18 are welded between the inner walls on both sides of the shell 1, and the bottoms of the two baffles 18 are fixed to the bottom inner wall of the shell 1, and two slide rails 17 are fixed between the two baffles 18 by bolts, and the two slide rails 17 are respectively fixed to the inner walls on both sides of the shell 1, and the sliding heat exchange module is slidably connected to the slide rails 17. The slide rails 17 will guide the moving direction of the heat exchange module so that the heat exchange module can only move along the direction of the slide rails 17, thereby reducing the deviation of the heat exchange module during movement and improving the smoothness of the movement of the heat exchange module.

[0033] In order to drive the heat exchange module to move, the adjustment mechanism in the present invention includes an electric telescopic rod 7, which is fixed to the top outer wall of the shell 1 by bolts, and the piston end of the electric telescopic rod 7 is fixed with a connecting frame 6 by bolts, and the connecting frame 6 is fixed to the slide seat 27, and at least one fixed shaft 28 is fixed to the bottom of the connecting frame 6 by bolts, and the top outer wall of the shell 1 is provided with the same number of avoidance grooves 13 as the fixed shaft 28, and the bottom end of the fixed shaft 28 passes through the avoidance groove 13 and is rotatably connected to at least two force arms 26, and the other end of the force arm 26 is rotatably connected to the heat exchange module, starting The electric telescopic rod 7 is moved, and the electric telescopic rod 7 drives the connecting frame 6 to move. The connecting frame 6 drives the slide 27 and the fixed shaft 28 to move. Through the force arm 26, the fixed shaft 28 pulls the sliding heat exchange module to move toward the middle heat exchange module, which can not only shake the water droplets on the heat exchange module to assist the water droplets to fall, but also make the adjacent heat exchange modules contact, thereby improving the thermal conductivity of the heat exchange module. The slide 27 and the connecting frame 6 move synchronously, which can keep the belt in a straight state at all times, and will not affect the rotation of the pulley driven by the stepper motor, thereby not affecting the movement of the first fin 32 and the second fin 35.

[0034] In order to change the airflow in the shell 1, the sealing and adjusting mechanism in the present invention includes a plurality of air guide plates 16, and the plurality of air guide plates 16 are rotatably connected between the inner walls on both sides of the shell 1. A connecting groove 20 is opened on one side of the plurality of air guide plates 16, and a connecting rod 19 is rotatably connected in the connecting groove 20. A connecting shaft 21 is welded on one side of one of the air guide plates 16, and a fixing tube 24 is welded on one side of both ends of the shell 1, and one end of the connecting shaft 21 passes through the shell 1 and is key-connected to the fixing tube 24 with a turning handle 8. A locking mechanism for fixing the angle of the air guide plate 16 is provided on the outer wall of one side of the fixing tube 24. The locking mechanism is unlocked to fix the connecting shaft 21, and the air guide plate 16 connected to the connecting shaft 21 is driven to rotate by the turning handle 8. The air guide plate 16 will drive the connecting rod 19 to move, thereby driving the remaining air guide plates 16 to rotate, thereby changing the wind direction of the fan 15.

[0035] Among them, the locking mechanism includes a threaded hole 23, which passes through the outer wall of one side of the fixing tube 24. A fixing screw 22 is connected to the inner thread of the threaded hole 23, and one end of the fixing screw 22 is in contact with the connecting shaft 21. The fixing screw 22 is rotated to make one end of the fixing screw 22 disengage from the connecting shaft 21. At this time, the connecting shaft 21 can rotate. After the rotation is completed, the fixing screw 22 is reversed to make the fixing screw 22 contact with the connecting shaft 21, and the angle of the connecting shaft 21 is fixed by friction. The annular surface where the connecting shaft 21 and the fixing screw 22 are in contact is provided with a plurality of anti-slip grooves. The anti-slip grooves can increase the friction between the connecting shaft 21 and the fixing screw 22, so that the fixed angle of the air guide plate 16 is more stable.

[0036] The two states produced when the present invention is used operate as follows: S1: When the heat exchanger is an evaporator, the fixing screw 22 is turned to make one end of the fixing screw 22 disengage from the connecting shaft 21, and the wind guide plate 16 connected to the connecting shaft 21 is driven to rotate by the turning handle 8. The wind guide plate 16 will drive the connecting rod 19 to move, thereby driving the remaining wind guide plates 16 to rotate, so that the air is blown to the top of the heat exchange module, and the air is exhausted from the bottom of the heat exchange module, so that the hot air moves from top to bottom, providing energy for the liquid refrigerant in the heat exchange module to be converted into gas, reducing the probability of frost formation, and after adjusting the angle of the wind guide plate 16, the fixing screw 22 is reversed to make the fixing screw 22 contact with the connecting shaft 21, and the angle of the connecting shaft 21 is fixed by friction, and then the servo motor is started to rotate forward and reverse, so that the servo motor drives the first pulley 25 and the second pulley 30 The first fin 32 and the second fin 35 are reciprocated by rotating forward and reversely, and the first fin 32 and the second fin 35 are reciprocated by rotating forward and reversely, and the first fin 32 and the second fin 35 of the adjacent fin group are moved closer, and the first magnetic ring 38 and the second magnetic ring 40 of the same fin group are moved farther away from each other. When the first fin 32 and the second fin 35 of the same fin group are moved closer, the first magnetic ring 38 and the second magnetic ring 40 of the adjacent fin group will repel each other and move away from each other, and after more than half of the rotation, the first magnetic ring 38 and the second magnetic ring 40 of the same fin group are attracted to each other, so that the first magnetic ring 38 and the second magnetic ring 40 are reset, and the water droplets on the connecting pipe 37 are scraped off by this reciprocating motion, so as to reduce the attachment time of the water droplets on the heat exchange module, and thus improve the service life of the heat exchanger; S2: When the heat exchanger is a condenser, the fixing screw 22 is rotated to make one end of the fixing screw 22 disengage from the connecting shaft 21, and the wind guide plate 16 connected to the connecting shaft 21 is driven to rotate by the turning handle 8. The wind guide plate 16 will drive the connecting rod 19 to move, thereby driving the remaining wind guide plates 16 to rotate, so that the air is blown to the bottom of the heat exchange module, and the air is extracted from the top of the heat exchange module, so that the cold air moves from the bottom to the top, thereby improving the heat dissipation efficiency of the heat exchange. After the angle of the wind guide plate 16 is adjusted, the fixing screw 22 is reversed to make the fixing screw 22 contact with the connecting shaft 21, and the angle of the connecting shaft 21 is fixed by friction, and then the electric telescopic rod 7 is started, and the electric telescopic rod 7 drives the electric telescopic rod 7 to drive the connecting frame 6 to move, and the connecting frame 6 will drive the sliding seat 27 and the fixed shaft 28 to move, and through the force arm 26, the fixed shaft 28 pulls the sliding heat exchange module to move toward the middle heat exchange module, so that the adjacent heat exchange modules are in contact, so that the heat radiation of the heat exchange module is changed into heat conduction, and the heat exchange efficiency is accelerated. The heat transfer further improves the heat dissipation efficiency of the heat exchanger. The stepper motor is started, and the stepper motor drives the second pulley 30 to rotate. The first pulley 25 is rotated through the belt transmission, and then the gear 41 is driven to rotate, so that the first rack 31 and the second rack 34 meshing with the gear 41 respectively drive the first fin 32 and the second fin 35 to move. Since the first rack 31 and the second rack 34 are centrally symmetrically distributed, the first fin 32 fixed to the first rack 31 and the second fin 35 fixed to the second rack 34 move toward each other. After the output shaft of the stepper motor rotates a certain angle, it stops rotating, so that the distance between the adjacent first fin 32 and the second fin 35 is distributed in large and small sizes. When the distance is large, the air circulation volume is large and the pressure is small, thereby driving the air flow within a small distance, thereby making the air circulation better, and the separated first fin 32 and the second fin 35 can increase the contact area with the air, and further expand the heat dissipation effect of the heat exchanger.

[0037] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An adjustable fin heat exchanger, comprising a housing (1), characterized in that: Air ports (2) are provided on both sides of the shell (1). A plurality of heat exchange modules for heat transfer are arranged in the shell (1). The heat exchange module located in the middle is fixed to the shell (1), and the remaining heat exchange modules are slidably connected to the shell (1) through a guide mechanism. The distance between the heat exchange modules can be adjusted by an adjustment mechanism, and the heat exchange modules are connected through a second bellows (12). Fans (15) are fixedly connected to the inner sides of both ends of the shell (1). Sealing adjustment mechanisms for guiding wind direction are provided on the inner sides of both ends of the shell (1). External joints (5) are provided on the outer walls of both sides of the shell (1), and the two external joints (5) are respectively connected to the two outermost heat exchange modules through the first bellows (11). A drain pipe (3) is fixedly connected to the bottom of the shell (1), and the drain pipe (3) is connected to the inside of the shell (1). A plugging cover (4) is threadedly connected to the bottom end of the drain pipe (3).

2. The adjustable fin heat exchanger according to claim 1, characterized in that: The heat exchange module comprises a frame (9), the frame (9) being arranged between the inner walls on both sides of the shell (1), a plurality of evenly distributed connecting pipes (37) being fixedly connected between the inner walls on both sides of the frame (9), a plurality of connecting elbows (10) being fixedly connected to the outer walls on both sides of the frame (9), and the connecting pipes (37) and the connecting elbows (10) being connected and combined into a complete pipeline, a plurality of fin groups being slidably connected to the outer circumferences of the plurality of connecting pipes (37), and the plurality of fin groups being evenly distributed, at least one guide groove (33) being provided on the top outer wall of the frame (9), and the top of the fin group passing through the guide groove (33) and sliding in the guide groove (33), and at least one liquid passage port (36) being provided on the bottom outer wall of the frame (9).

3. The adjustable fin heat exchanger according to claim 2, characterized in that: The fin group comprises a first fin (32) and a second fin (35), the first fin (32) and the second fin (35) are both slidably connected to the outer side of the circumference of the connecting tube (37), and the first fin (32) and the second fin (35) of the same fin group are in contact with each other, a combined component for making the plurality of first fins (32) and the second fins (35) move synchronously is provided on the top of the frame (9), and a dewatering component for cleaning the surface of the connecting tube (37) is provided on the outer wall of the circumference of the connecting tube (37).

4. The adjustable fin heat exchanger according to claim 3, characterized in that: The combined assembly comprises a connection cover (29), the connection cover (29) being fixedly connected to the top of the frame (9), the top inner wall of the connection cover (29) being rotatably connected to a gear (41), the tops of the plurality of first fins (32) being fixedly connected to a first rack (31), the tops of the plurality of second fins (35) being fixedly connected to a second rack (34), and the first rack (31) and the second rack (34) both being meshed with the gear (41), and the top of the housing (1) being provided with a power mechanism for driving the gear (41) to rotate.

5. The adjustable fin heat exchanger according to claim 4, characterized in that: The power mechanism comprises a slide groove (14), the slide groove (14) being opened on the top outer wall of the housing (1), a slide seat (27) being slidably connected in the slide groove (14), a stepper motor being fixedly connected to the bottom inner wall of the slide seat (27), an output shaft of the stepper motor passing through the slide seat (27) being fixedly connected to a second pulley (30), the top outer walls of the plurality of connection covers (29) being rotatably connected to the first pulley (25), the first pulley (25) being fixedly connected to the gear (41), and the plurality of first pulleys (25) and the second pulleys (30) being driven by belts.

6. The adjustable fin heat exchanger according to claim 3, characterized in that: The dewatering assembly comprises a plurality of first magnetic rings (38) and second magnetic rings (40), the plurality of first magnetic rings (38) and second magnetic rings (40) are all slidably connected to the circumferential outer wall of the connecting tube (37), the first magnetic rings (38) are in contact with the first fin (32), and the second magnetic rings (40) are in contact with the second fin (35), the plurality of first magnetic rings (38), the second magnetic rings (40) are all fixedly connected to the back surfaces of the first fin (32) and the second fin (35) with a scraper ring (39), and the scraper ring (39) is in contact with the circumferential outer wall of the connecting tube (37), the first magnetic rings (38) and the second magnetic rings (40) located in the same fin group are attracted to each other, and the first magnetic rings (38) and the second magnetic rings (40) between adjacent fin groups are repelled from each other.

7. The adjustable fin heat exchanger according to claim 1, characterized in that: The guide mechanism comprises two baffles (18), the two baffles (18) are fixedly connected between the inner walls on both sides of the shell (1), and the bottoms of the two baffles (18) are fixed to the bottom inner wall of the shell (1), two slide rails (17) are fixedly connected between the two baffles (18), and the two slide rails (17) are respectively fixed to the inner walls on both sides of the shell (1), and the sliding heat exchange module is slidably connected to the slide rails (17).

8. The adjustable fin heat exchanger according to claim 1, characterized in that: The adjustment mechanism comprises an electric telescopic rod (7), the electric telescopic rod (7) being fixedly connected to the top outer wall of the shell (1), the piston end of the electric telescopic rod (7) being fixedly connected to a connecting frame (6), the bottom of the connecting frame (6) being fixedly connected to at least one fixed shaft (28), the top outer wall of the shell (1) being provided with avoidance grooves (13) having the same number as the fixed shaft (28), the bottom end of the fixed shaft (28) passing through the avoidance grooves (13) being rotatably connected to at least two force arms (26), and the other end of the force arm (26) being rotatably connected to the heat exchange module.

9. The adjustable fin heat exchanger according to claim 1, characterized in that: The sealing and adjusting mechanism comprises a plurality of air guide plates (16), the plurality of air guide plates (16) being rotatably connected between two side inner walls of the shell (1), a connection groove (20) being provided on one side of the plurality of air guide plates (16), a connection rod (19) being rotatably connected in the connection groove (20), a connection shaft (21) being fixedly connected to one side of one of the air guide plates (16), a fixed tube (24) being fixedly connected to one side of both ends of the shell (1), one end of the connection shaft (21) passing through the shell (1) and being fixedly connected to the fixed tube (24) and a turning handle (8), and a locking mechanism for fixing the angle of the air guide plate (16) being provided on one side outer wall of the fixed tube (24).

10. The adjustable fin heat exchanger according to claim 9, characterized in that: The locking mechanism comprises a threaded hole (23), the threaded hole (23) penetrates through an outer wall of one side of the fixing tube (24), a fixing screw (22) is connected to the inner thread of the threaded hole (23), one end of the fixing screw (22) is in contact with the connecting shaft (21), and a plurality of anti-slip grooves are provided on the annular surface where the connecting shaft (21) and the fixing screw (22) are in contact.

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