Evaporative condenser heat exchange device

Abstract

An evaporative condenser heat exchange device comprises a shell, a condensing coil is fixedly installed in the shell, the two ends of the condensing coil extend out of the shell, a spraying device capable of spraying the condensing coil is arranged on the top side of the shell, air inlets are formed in the two sides of the shell, an air outlet is formed in the top side of the shell, and an axial flow fan is fixedly installed at the air outlet. The device is characterized in that scraping devices capable of scraping the condensing coil are movably arranged on the periphery of the transverse pipe part of the condensing coil, the scraping devices are fixedly connected, a rotating shaft is rotationally installed on the bottom side of the shell, and double receiving hoppers are fixedly installed on the rotating shaft. The device is simple in structure and ingenious in conception, sprayed cooling water falls into the double material receiving hoppers and then drives the double material receiving hoppers to swing, so that the scraping device is driven to reciprocate along the transverse pipe part of the condensing coil, the purpose of scraping water scale and water films on the periphery of the condensing coil is achieved, the heat exchange effect of the condensing coil is guaranteed, and the service life of the condensing coil is prolonged. The method can meet actual requirements and is suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of evaporative condensers, specifically an evaporative condenser heat exchange device. Background Technology

[0002] An evaporative condenser is a heat exchange device used for cooling cold storage. It consists of components such as a fan, condenser coil, heat exchange fins, and housing. The evaporative condenser is the main heat exchange equipment in a refrigeration system. Patent CN219178031U, entitled "An Evaporative Condenser Heat Exchange Device," discloses a device for replacing the air inlet device. However, after prolonged spraying during use, scale will adhere to the outer circumference of the condenser coil, affecting the heat exchange efficiency of the condenser. The device does not include a means to clean the scale. Therefore, we designed an evaporative condenser heat exchange device that can clean the scale. Utility Model Content

[0003] This invention provides an evaporative condenser heat exchange device to overcome the deficiencies in the prior art.

[0004] This utility model is achieved through the following technical solution:

[0005] An evaporative condenser heat exchange device includes a shell, a condensing coil fixedly installed inside the shell, both ends of the condensing coil extending out of the shell, a spray device for spraying the condensing coil on the top side of the shell, air inlets on both sides of the shell, an air outlet on the top side of the shell, and an axial flow fan fixedly installed at the air outlet. The device is characterized by: a scraping device movably installed on the outer periphery of the horizontal tube portion of the condensing coil, several scraping devices fixedly connected; a rotating shaft rotatably installed on the bottom side of the shell, a double-feeding hopper fixedly installed on the rotating shaft, a horizontal plate above the double-feeding hopper, a water drain groove on the horizontal plate corresponding to the position of the double-feeding hopper, baffles on both sides of the double-feeding hopper, the baffles being fixedly installed on the shell; and a linear moving mechanism inside the shell capable of driving the scraping device to reciprocate, the rotation of the rotating shaft driving the linear moving mechanism to move.

[0006] As described above, in an evaporative condenser heat exchange device, the scraping device includes annular plates, and several annular plates are provided. The annular plates are slidably installed on the outer periphery of the horizontal tube portion of the condensing coil. Several arc-shaped scrapers are provided inside the annular plates. The arc-shaped scrapers fit snugly against the outer periphery of the condensing coil. The two sides of the arc-shaped scrapers are inclined surfaces. Slide rods are fixedly installed on the outer periphery of the arc-shaped scrapers. Corresponding first slide grooves are opened on the annular plates corresponding to the slide rods. The slide rods and the corresponding first slide grooves are connected by a first spring. The several annular plates are fixedly connected to each other, and the bottommost annular plate is fixedly installed on a linear moving mechanism.

[0007] As described above, in an evaporative condenser heat exchange device, the linear movement mechanism includes a reciprocating lead screw, which is rotatably mounted on a housing. One end of the reciprocating lead screw extends out of the housing, and one end of the rotating shaft extends out of the housing. The end of the reciprocating lead screw extending out of the housing and the end of the rotating shaft extending out of the housing are connected by a one-way bearing and a transmission device. A nut is installed on the outer circumference of the reciprocating lead screw, and the bottommost annular plate is fixedly connected to the nut.

[0008] As described above, in an evaporative condenser heat exchange device, the transmission device includes a gear, which is fixedly installed at one end of the rotating shaft extending out of the housing. The end of the reciprocating lead screw extending out of the housing is connected to a gear ring via a one-way bearing. The gear ring and the gear are connected by several transmission gears, which are rotatably mounted on the housing.

[0009] As described above, an evaporative condenser heat exchange device has a first rectangular frame on the outer side of the air inlet. The inner ring of the first rectangular frame has a rectangular groove that communicates with the outside. A rectangular rubber ring is fixedly installed on the side of the rectangular groove near the shell. A filter screen frame is inserted and fitted inside the rectangular groove. A filter screen is fixedly installed inside the filter screen frame. A limiting device that can limit the position of the filter screen frame is provided on the first rectangular frame. An L-shaped rod is fixedly installed on the side of the filter screen away from the shell.

[0010] As described above, in an evaporative condenser heat exchange device, the limiting device includes a vertical groove. Several vertical grooves communicating with the rectangular groove and the outside are respectively opened on the upper and lower sides of the rectangular groove. Insert rods are slidably installed in the vertical grooves. A horizontal bar is fixedly installed at the top of the insert rod. The horizontal bar is connected to the first rectangular frame by a second spring. Insert rods of the same height on the same first rectangular frame are connected by a connecting rod. Several slots are opened on the filter screen frame corresponding to the insert rods.

[0011] As described above, in an evaporative condenser heat exchange device, the spraying device includes an inverted L-shaped tube. The horizontal tube of the inverted L-shaped tube is fixedly installed inside the housing, and the vertical tube extends out of the housing. A second rectangular frame is fixedly installed on the bottom side of the housing. A filter plate is provided on the second rectangular frame, and the filter plate abuts against the second rectangular frame. The filter plate can be moved out from the air inlet. An inverted U-shaped rod is fixedly installed on one side of the filter plate. A water outlet is opened on one side of the bottom of the housing, and a water pump is connected to the water outlet. The vertical tube of the inverted L-shaped tube is connected to the water pump. Several spray nozzles are connected to the bottom of the horizontal tube of the inverted L-shaped tube. A water inlet is opened on one side of the housing, and a sealing cap is installed inside the water inlet.

[0012] The advantages of this utility model are: the utility model has a simple structure and ingenious design. After the sprayed cooling water falls into the double-feeding hopper, it causes the hopper to swing, thereby driving the scraping device to move back and forth along the horizontal tube of the condenser coil. This achieves the purpose of scraping away the scale and water film on the outer periphery of the condenser coil, ensuring the heat exchange effect of the condenser coil, meeting actual needs, and suitable for promotion. When using this invention, firstly, coolant to be cooled is introduced into the condenser coil. Simultaneously, the axial flow fan is started to ventilate the casing and air-cool the condenser coil. The spray device is then activated to spray the cooling coil. The sprayed cooling water comes into contact with the condenser coil and exchanges heat with the coolant inside. The remaining cooling water drips onto the horizontal plate and falls into the double-joint hopper through the drain trough. When the cooling water in one hopper of the double-joint hopper is more than that in the other, the double-joint hopper drives the rotating shaft to swing to that side until the double-joint hopper contacts the stop bar on that side. At this time, the cooling water in the hopper on that side is poured out. The double-joint hopper drives the rotating shaft to swing to the other side, and so on. The rotation of the rotating shaft drives the linear movement mechanism to move back and forth. The linear movement mechanism drives the scraping device to move back and forth. The scraping device scrapes away the scale or water film on the outer periphery of the horizontal tube of the condenser coil to prevent the scale or water film from affecting the heat exchange between the cooling water and the coolant to be cooled in the condenser coil. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 View from direction A; Figure 3 yes Figure 1 View from direction B; Figure 4 yes Figure 1 Enlarged view of part I; Figure 5 yes Figure 1 Part II enlarged view.

[0015] Reference numerals: 1. Shell, 2. Condensing coil, 3. Air inlet, 4. Air outlet, 5. Axial flow fan, 6. Rotating shaft, 7. Double-connecting hopper, 8. Baffle bar, 9. One-way bearing, 10. Horizontal plate, 11. Drainage groove, 20. Annular plate, 21. Arc-shaped scraper, 22. Slide bar, 23. First slide groove, 24. First spring, 25. Second slide groove, 26. Strip plate, 30. Reciprocating lead screw, 31. Nut, 40. Gear, 41. Gear ring, 42. Transmission 50. Gear, 51. First rectangular frame, 52. Rectangular groove, 53. Rubber ring, 54. Filter screen frame, 55. Filter screen, 66. Inverted L-shaped rod, 67. Vertical groove, 68. Insert rod, 69. Horizontal rod, 60. Second spring, 61. Third sliding groove, 62. Slider, 63. Slot, 74. Inverted L-shaped tube, 75. Second rectangular frame, 76. Filter plate, 77. Inverted U-shaped rod, 78. Water outlet, 79. Water pump, 70. Nozzle, 71. Water inlet. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] An evaporative condenser heat exchange device, such as Figure 1 , 2As shown in Figures 3, 4, and 5, the device includes a housing 1, with a condenser coil 2 fixedly installed inside the housing 1. Both ends of the condenser coil 2 extend out of the housing 1. A spraying device capable of spraying the condenser coil 2 is provided on the top side of the housing 1. Air inlets 3 are opened on both sides of the housing 1, and an air outlet 4 is opened on the top side of the housing 1. An axial flow fan 5 is fixedly installed at the air outlet 4. The axial flow fan 5 is fixedly installed on the housing 1. The device is characterized in that: a scraping device capable of scraping the horizontal tube portion of the condenser coil 2 is movably provided on its outer periphery, and several scraping devices are fixedly connected. A rotating shaft 6 is rotatably installed on the bottom side of the housing 1. One end of the rotating shaft 6 extends out of the housing 1 through a reserved hole on the housing 1. The outer periphery of the rotating shaft 6 is rotatably connected to the inner periphery of the reserved hole through a sealed bearing. The other end of the rotating shaft 6 is rotatably installed on the housing 1 through a bearing. On the housing 1, a double-connecting hopper 7 is fixedly installed on the rotating shaft 6. The double-connecting hopper 7 has two hoppers, which are symmetrically distributed front and back. A baffle is fixed between the two hoppers. The double-connecting hopper 7 is coaxially arranged with the rotating shaft 6. A horizontal plate 10 is provided above the double-connecting hopper 7. A water leakage groove 11 is opened on the horizontal plate 10 corresponding to the position of the double-connecting hopper 7. The water leakage groove 11 is located above the double-connecting hopper 7. The horizontal plate 10 is fixedly installed on the housing 1. A stop bar 8 is provided on both sides of the double-connecting hopper 7. The double-connecting hopper 7 can contact the stop bar 8. The stop bar 8 is located on the front and back sides of the lower part of the receiving hopper 7 and is symmetrically distributed front and back. The stop bar 8 is fixedly installed on the housing 1. A linear moving mechanism that can drive the scraping device to move back and forth is provided inside the housing 1. The rotation of the rotating shaft 6 can drive the linear moving mechanism to move. This utility model has a simple structure and ingenious design. The sprayed cooling water falls into the double-joint hopper 5, causing it to oscillate. This oscillates the hopper, which in turn drives the scraping device to reciprocate along the horizontal section of the condenser coil 2, effectively removing scale and water film from the outer circumference of the condenser coil 2. This ensures the heat exchange efficiency of the condenser coil 2, meets practical needs, and is suitable for widespread application. When using this utility model, first, coolant to be cooled is introduced into the condenser coil 2. Simultaneously, the axial flow fan 5 is started to ventilate the casing 1, providing air cooling to the condenser coil 2. The spraying device is then activated to spray the cooling coil 2. The sprayed cooling water contacts the condenser coil 2 and exchanges heat with the coolant inside. The remaining cooling water drips onto the horizontal plate 10 and falls through the drain trough 11 into the double-joint hopper 7. When the cooling water in one hopper of the double-joint hopper 7 is more than that in the other, the double-joint hopper 7... The rotating shaft 6 swings to one side until the double-connecting hopper 7 contacts the stop bar 8 on that side. At this time, the cooling water in the hopper on that side is poured out. The double-connecting hopper 7 drives the rotating shaft 6 to swing to the other side. This cycle repeats. The rotation of the rotating shaft 6 drives the linear movement mechanism to move back and forth. The linear movement mechanism drives the scraping device to move back and forth. The scraping device scrapes away the scale or water film formed on the outer periphery of the horizontal tube part of the condenser coil 2 to prevent the scale or water film from affecting the heat exchange between the cooling water and the coolant to be cooled in the condenser coil 2.

[0018] Specifically, as shown in the figure, the scraping device in this embodiment includes annular plates 20, of which several annular plates 20 are provided. The annular plates 20 are slidably installed on the outer periphery of the horizontal tube portion of the condenser coil 2. Several arc-shaped scrapers 21 are provided inside the annular plates 20, and the arc-shaped scrapers 21 fit snugly against the outer periphery of the condenser coil 2. The two sides of the arc-shaped scrapers 21 are inclined surfaces. Sliding rods 22 are fixedly installed on the outer periphery of the arc-shaped scrapers 21. A corresponding first sliding groove 23 is formed on the annular plate 20 corresponding to the sliding rod 22. The sliding rod 22 can only slide within the first sliding groove 23 and cannot rotate. Second sliding grooves 25 are formed on both sides of the first sliding groove 23. A strip plate 26 is slidably installed inside the 25, and a slide rod 22 is fixedly installed on the strip plate 26. The strip plate 26 can limit the slide rod 22, so that it can only slide within the first slide groove 23 and cannot rotate. The slide rod 22 and the corresponding first slide groove 23 are connected by a first spring 24. The first spring 24 is fitted on the outer circumference of the slide rod 22. One end of the first spring 24 is fixedly connected to the outer circumference of the slide rod 22, and the other end of the first spring 24 is fixedly connected to the inner wall of the first slide groove 23. Several annular plates 20 are fixedly connected to each other, and adjacent annular plates 20 are connected by connecting rods. The bottommost annular plate 20 is fixedly installed on the linear motion mechanism. The linear movement mechanism drives the annular plate 20 to reciprocate. The annular plate 20 drives the arc-shaped scraper 21 to scrape off the water film or scale on the outer periphery of the condenser coil 2. When encountering stubborn scale, the inclined surface of the arc-shaped scraper 21 can guide the arc-shaped scraper 21 to move towards the annular plate 20. The slide rod 22 moves towards the first slide groove 23, and the first spring 24 is stretched. At this time, the movement of the annular plate 20 and the arc-shaped scraper 21 is not hindered, preventing damage to the outer periphery of the condenser coil 2 when hard scraping off stubborn scale. After leaving the stubborn scale, the slide rod 22 and the arc-shaped scraper 21 return to their original positions under the action of the first spring 24, and continue to scrape other parts of the outer periphery of the condenser coil 2. These stubborn scales can wait for the staff to handle them.

[0019] Specifically, as shown in the figure, the linear movement mechanism in this embodiment includes a reciprocating lead screw 30, which is rotatably mounted on the housing 1. One end of the reciprocating lead screw 30 extends out of the housing 1. The housing 1 has a pre-drilled hole. One end of the reciprocating lead screw 30 is rotatably connected to the inner circumference of the pre-drilled hole through a sealed bearing and extends out of the housing 1. The other end of the reciprocating lead screw 30 is rotatably mounted on the housing 1 through a bearing. One end of the rotating shaft 6 extends out of the housing 1. The end of the reciprocating lead screw 30 extending out of the housing 1 is connected to the end of the rotating shaft 6 extending out of the housing 1 through a one-way bearing 9 and a transmission device. A screw nut 31 is threadedly fitted onto the outer circumference of the reciprocating lead screw 30. The bottommost annular plate 20 is fixedly connected to the screw nut 31. The rotating shaft 6 drives the reciprocating lead screw 30 to rotate in one direction through the one-way bearing 9 and the transmission device. The reciprocating lead screw 30 drives the screw nut 31, the annular plate 20, and the arc-shaped scraper 21 to move along the reciprocating lead screw 30, thereby scraping the outer circumference of the horizontal tube portion of the condenser coil 2.

[0020] Specifically, as shown in the figure, the transmission device in this embodiment includes a gear 40, which is fixedly installed at one end of the rotating shaft 6 extending out of the housing 1. The end of the reciprocating lead screw 30 extending out of the housing 1 is connected to the gear ring 41 through a one-way bearing 9. The inner ring of the one-way bearing 9 is fixedly connected to the outer circumference of the reciprocating lead screw 30, and the outer ring of the one-way bearing 9 is fixedly connected to the inner ring of the gear ring 41. The gear ring 41 and the gear 40 are connected by several transmission gears 42. The transmission gears 42 are rotatably installed on the housing 1. In this embodiment, there are two transmission gears 42, which are respectively fixedly installed on the support shaft, and the support shaft is respectively rotatably installed on the housing 1. When the double-joint hopper 7 swings continuously, it drives the rotating shaft 6 to rotate and swing. The rotating shaft 6 drives the gear ring 41 to rotate through the gear 40 and the transmission gear 42. The gear ring 41 drives the reciprocating screw 30 to rotate in one direction through the one-way bearing 9. The reciprocating screw 30 drives the screw nut 31, the annular plate 20 and the arc-shaped scraper 21 to move back and forth, scraping off the scale on the outer periphery of the horizontal pipe part of the condenser coil 2.

[0021] Furthermore, as shown in the figure, the outer side of the air inlet 3 in this embodiment is provided with a first rectangular frame 50. The inner circle of the first rectangular frame 50 can cover the air inlet 3. The inner circle of the first rectangular frame 50 has a rectangular groove 51 that communicates with the outside. A rectangular rubber ring 52 is fixedly installed on the side of the rectangular groove 51 near the housing 1. A filter screen frame 53 is inserted and fitted in the rectangular groove 51. A filter screen 54 is fixedly installed in the filter screen frame 53. A limiting device is provided on the first rectangular frame 50 that can limit the position of the filter screen frame 53. An L-shaped rod 55 is fixedly installed on the side of the filter screen 54 away from the housing 1. When the filter screen 54 needs to be cleaned, the limiting device is released from the limiting device on the filter screen frame 53. The filter screen frame 53 is pulled out from the rectangular groove 51 by the L-shaped rod 55. The filter screen frame 53 is then cleaned or replaced. After cleaning or replacement, the cleaned filter screen frame 53 or the new filter screen frame 53 is put back into the rectangular groove 51. The limiting device is then controlled to limit its position. At this time, the filter screen frame 53 can abut against the rectangular rubber ring 52, increasing the sealing between the filter screen frame 53 and the rectangular groove 51 and preventing unfiltered air from entering the housing 1.

[0022] Furthermore, as shown in the figure, the limiting device described in this embodiment includes vertical grooves 60. Several vertical grooves 60 communicating with the rectangular groove 51 and the outside are respectively opened on the upper and lower sides of the rectangular groove 51. In this embodiment, four vertical grooves 60 are provided on the same first rectangular frame 50 and are symmetrically distributed vertically. Insert rods 61 are slidably installed in the vertical grooves 60. Third sliding grooves 64 are respectively opened on both sides of the vertical grooves 60. Sliding blocks 65 are slidably installed in the third sliding grooves 64. The sliding blocks 65 are fixedly installed on the corresponding insert rods 61. The sliding blocks 65 can only move in the third sliding grooves 64. The inner sliding mechanism limits the insertion rod 61, allowing it to move only up and down within the vertical groove 60. A horizontal bar 62 is fixedly mounted on the top of the insertion rod 61. The horizontal bar 62 is connected to the first rectangular frame 50 via a second spring 63, which is fitted around the outer periphery of the insertion rod 61. One end of the second spring 63 is fixedly connected to the outer periphery of the horizontal bar 62, and the other end is fixedly connected to one side of the first rectangular frame 50. Insertion rods 61 of the same height on the same first rectangular frame 50 are connected by a connecting rod. Several slots 66 are provided on the filter frame 53 corresponding to the insertion rods 61. When it is necessary to release the restriction on the filter frame 53, the horizontal bar 62 is pulled away from the first rectangular frame 50. The second spring 63 is stretched, and the insertion rod 61 moves out of the corresponding slot 66, releasing the restriction on the filter frame 53. At this time, the filter frame 53 can be moved out of the rectangular groove 51.

[0023] Furthermore, as shown in the figure, the spraying device described in this embodiment includes an inverted L-shaped pipe 70. The horizontal pipe of the inverted L-shaped pipe 70 is fixedly installed inside the housing 1, and the vertical pipe extends out of the housing 1. A second rectangular frame 71 is fixedly installed on the bottom side of the housing 1. A filter plate 72 is provided on the second rectangular frame 71. The filter plate 72 abuts and contacts the second rectangular frame 71. The filter plate 72 can be moved out from the air inlet 3. An inverted U-shaped rod 73 is fixedly installed on one side of the filter plate 72. A water outlet 74 is opened on one side of the bottom of the housing 1. A water pump 75 is connected to the water outlet 74. The water pump 75 is fixedly installed on the housing 1. The vertical pipe of the inverted L-shaped pipe 70 is connected to the water pump 75. Several nozzles 76 are connected to the bottom of the horizontal pipe of the inverted L-shaped pipe 70. Several through holes are opened on the horizontal pipe of the inverted L-shaped pipe 70. The nozzles 76 are connected to the horizontal pipe through the corresponding through holes. A water inlet 77 is opened on one side of the housing 1. A sealing cap is installed inside the water inlet 77 (not shown in the figure). Open the sealing cover and inject an appropriate amount of cooling water into the housing 1 through the water inlet 77. Reinstall the sealing cover into the water inlet 77. At this time, start the water pump 75. The water pump 75 sends the cooling water into the inverted L-shaped pipe 70 and finally sprays it out from the nozzle 76 to spray the condenser coil 2 and exchange heat with the coolant to be cooled in the cooling coil 2. After being sprayed, the cooling water falls into the bottom of the housing 1 after being filtered by the filter plate 72. When it is necessary to clean the filter plate 72, remove the filter screen frame 53 from the first rectangular frame 50. At this time, use the inverted U-shaped rod 73 to remove the filter plate 72 from the housing 1 through the air inlet 3 and clean the filter plate 72. After cleaning, put it back into the housing 1 and put the filter screen frame 53 back into the first rectangular frame 50.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An evaporative condenser heat exchange device, comprising a shell (1), a condensing coil (2) fixedly installed inside the shell (1), both ends of the condensing coil (2) extending out of the shell (1), a spraying device capable of spraying the condensing coil (2) provided on the top side of the shell (1), air inlets (3) opened on both sides of the shell (1), an air outlet (4) opened on the top side of the shell (1), and an axial flow fan (5) fixedly installed at the air outlet (4), characterized in that: The outer periphery of the horizontal tube section of the condenser coil (2) is provided with a scraping device that can scrape it. Several scraping devices are fixedly connected. A rotating shaft (6) is rotatably installed on the bottom side of the housing (1). A double-connecting hopper (7) is fixedly installed on the rotating shaft (6). A horizontal plate (10) is provided above the double-connecting hopper (7). A water leakage groove (11) is opened on the horizontal plate (10) corresponding to the position of the double-connecting hopper (7). A stop bar (8) is provided on both sides of the double-connecting hopper (7). The stop bar (8) is fixedly installed on the housing (1). A linear moving mechanism that can drive the scraping device to move back and forth is provided inside the housing (1). The rotation of the rotating shaft (6) can drive the linear moving mechanism to move.

2. The evaporative condenser heat exchange device according to claim 1, characterized in that: The scraping device includes an annular plate (20), and several annular plates (20) are provided. The annular plates (20) are slidably installed on the outer periphery of the horizontal tube part of the condenser coil (2). Several arc-shaped scrapers (21) are provided in the annular plate (20). The arc-shaped scrapers (21) fit and cooperate with the outer periphery of the condenser coil (2). The two sides of the arc-shaped scrapers (21) are inclined. The outer periphery of the arc-shaped scrapers (21) is fixedly installed with slide rods (22). The annular plate (20) has a corresponding first slide groove (23) on the slide rod (22). The slide rod (22) and the corresponding first slide groove (23) are connected by a first spring (24). Several annular plates (20) are fixedly connected to each other. The bottommost annular plate (20) is fixedly installed on the linear movement mechanism.

3. The evaporative condenser heat exchange device according to claim 2, characterized in that: The linear motion mechanism includes a reciprocating lead screw (30), which is rotatably mounted on the housing (1). One end of the reciprocating lead screw (30) extends out of the housing (1), and one end of the rotating shaft (6) extends out of the housing (1). The end of the reciprocating lead screw (30) extending out of the housing (1) and the end of the rotating shaft (6) extending out of the housing (1) are connected by a one-way bearing (9) and a transmission device. The outer circumference of the reciprocating lead screw (30) is threaded to install a nut (31), and the bottommost annular plate (20) is fixedly connected to the nut (31).

4. The evaporative condenser heat exchange device according to claim 3, characterized in that: The transmission device includes a gear (40), which is fixedly installed at one end of the rotating shaft (6) extending out of the housing (1). The reciprocating screw (30) extends out of the housing (1) and is connected to the gear ring (41) through a one-way bearing (9). The gear ring (41) and the gear (40) are connected by several transmission gears (42), which are rotatably installed on the housing (1).

5. The evaporative condenser heat exchange device according to claim 1, characterized in that: The air inlet (3) is provided with a first rectangular frame (50) on the outside. The inner circle of the first rectangular frame (50) is provided with a rectangular groove (51) that communicates with the outside. A rectangular rubber ring (52) is fixedly installed on the side of the rectangular groove (51) near the housing (1). A filter screen frame (53) is inserted and fitted in the rectangular groove (51). A filter screen (54) is fixedly installed in the filter screen frame (53). A limiting device is provided on the first rectangular frame (50) that can limit the filter screen frame (53). An L-shaped rod (55) is fixedly installed on the side of the filter screen (54) away from the housing (1).

6. The evaporative condenser heat exchange device according to claim 5, characterized in that: The limiting device includes a vertical groove (60). Several vertical grooves (60) communicating with the rectangular groove (51) and the outside are respectively opened on the upper and lower sides of the rectangular groove (51). Insert rods (61) are slidably installed in the vertical grooves (60). A crossbar (62) is fixedly installed at the top of the insert rod (61). The crossbar (62) is connected to the first rectangular frame (50) by a second spring (63). Insert rods (61) of the same height on the same first rectangular frame (50) are connected by a connecting rod. Several slots (66) are opened on the filter screen frame (53) corresponding to the insert rods (61).

7. The evaporative condenser heat exchange device according to claim 6, characterized in that: The spraying device includes an inverted L-shaped pipe (70), the horizontal pipe of the inverted L-shaped pipe (70) is fixedly installed inside the housing (1), the vertical pipe extends out of the housing (1), a second rectangular frame (71) is fixedly installed on the bottom side of the housing (1), a filter plate (72) is provided on the second rectangular frame (71), the filter plate (72) and the second rectangular frame (71) abut against each other, the filter plate (72) can be moved out from the air inlet (3), an inverted U-shaped rod (73) is fixedly installed on one side of the filter plate (72), a water outlet (74) is opened on one side of the bottom of the housing (1), a water pump (75) is connected to the water outlet (74), the vertical pipe of the inverted L-shaped pipe (70) is connected to the water pump (75), several nozzles (76) are connected to the bottom of the horizontal pipe of the inverted L-shaped pipe (70), a water inlet (77) is opened on one side of the housing (1), and a sealing cap is installed inside the water inlet (77).

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