A grain cooler condensate water recovery and secondary cooling device

Abstract

The application discloses a kind of grain cooling machine condensate water recovery and secondary cooling device, belong to the technical field of grain cooling machine, including shunt casing, water inlet pipe, first cavity, second cavity, water outlet pipe and water guide brush strip;The application designs shunt casing, water inlet pipe, first cavity, second cavity and water outlet pipe, the purpose is to the condensate water discharged in cooling machine is recycled, it is used for cooling machine cooling treatment, to improve the refrigeration efficiency of cooling machine, at the same time, water outlet pipe below is equipped with mutually coordinated water guide brush strip, to make condensate water first drop water guide brush strip and then flow to fin, avoid fin temperature difficult to reduce sufficiently, break through heat exchange efficiency limit, improve secondary cooling efficiency, in addition, it can also be through pull rope control water guide brush strip bending degree, let condensate water flow through fin evenly, bend on water guide brush strip when idle, both can prevent creep and can shield water outlet pipe dust, guarantee operation.

Description

Technical Field

[0001] This invention belongs to the technical field of grain cooler, and particularly relates to a condensate recovery and secondary cooling device for grain coolers. Background Technology

[0002] Currently, grain coolers are the mainstream technology for ventilation and cooling in grain silos. During operation, the refrigerant undergoes compression, condensation, throttling, and evaporation within the refrigeration cycle system to cool the grain pile. In the condensation stage, the refrigerant exchanges heat with the outside air through the condenser, releasing heat into the environment and transforming from a gaseous to a liquid state. In the evaporation stage, the liquid refrigerant absorbs heat from the grain pile and vaporizes in the evaporator, generating a large amount of condensate. To avoid waste from direct discharge of this condensate, a recovery device is typically used to collect and reuse it for secondary cooling of the grain cooler, further improving grain cooling efficiency. While the cooling efficiency of the machine is improved, the recovered condensate is directly sprayed onto the external fins. Under this method, the condensate flows down rapidly due to gravity, and the heat exchange time with the fins lasts only a few seconds. This instantaneous contact prevents the surface temperature of the fins from being sufficiently reduced, thus limiting the heat exchange efficiency. Moreover, the condensate is discharged before it is fully vaporized, and the remaining cooling capacity is wasted. The low temperature contained in the condensate is not fully utilized to improve the secondary cooling efficiency of the grain cooler, which is undoubtedly an unreasonable waste of energy and restricts the further improvement of the overall performance of the grain cooler. Therefore, this invention proposes a condensate recovery and secondary cooling device for grain coolers. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a grain cooler condensate recovery and secondary cooling device that can overcome or at least partially solve the above problems.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a grain cooler condensate recovery and secondary cooling device, including a diversion shell, wherein the interior of the diversion shell is provided with a first cavity and a second cavity that are interconnected from top to bottom in a vertical direction; an inlet pipe is fixedly connected to one side of the diversion shell and the internal channel of the inlet pipe is connected to the first cavity; a plurality of outlet pipes are horizontally and equidistantly distributed and fixedly connected to the surface of the diversion shell, and the internal channel of the outlet pipes is connected to the second cavity; and a plurality of water guide brushes are provided below the outlet pipes, wherein each of the water guide brushes is tightly fitted to each other.

[0005] Preferably, the first cavity and the second cavity are inverted L-shaped when viewed from above, wherein the depth of the second cavity is half the depth of the first cavity, and the distance between the front and rear walls of the second cavity is less than the distance between the front and rear walls of the first cavity.

[0006] Preferably, the bottom wall of the first cavity is connected to a filter plate located above the second cavity, and the transverse and longitudinal diameters of the filter plate are adapted to the corresponding transverse and longitudinal diameters of the first cavity.

[0007] Preferably, when the filter plate is fitted to the bottom wall of the first cavity, the top of the diversion housing is provided with a slot of the same size as the filter plate, the top of the diversion housing is provided with a detachable top plate, and the top of the filter plate is fixedly connected with a plurality of abutment rods that fit against the bottom of the top plate in the vertical direction.

[0008] Preferably, the diverter housing is provided with a connecting plate, which includes a vertical section, an arc section and a horizontal section. The arc section is fixedly connected between the vertical section and the horizontal section, so that the connecting plate forms an integral L-shaped structure. The connecting plate is fixedly connected to the diverter housing through the vertical section, and a plurality of horizontally distributed and equidistantly arranged circular magnets are fixedly connected to the bottom of the horizontal section.

[0009] Preferably, a pair of mirror-symmetrical locking blocks are provided below the connecting plate on the diversion housing. The top cross-section of the locking block has a horizontally inclined downward structure, while the bottom cross-section has a horizontally inclined upward structure. The side where the top and bottom cross-sections of the locking block meet is pointed.

[0010] Preferably, one end of the water guide brush is fixedly connected to an installation rod, and the surface of the diversion housing is fixedly connected to an installation plate located below the water outlet pipe. The surface of the installation plate is provided with an installation groove that matches the size of the installation rod, and the installation rod is fixedly connected to the inner wall of the installation groove.

[0011] Preferably, a counterweight is fixedly connected to the other end of the water guide brush, and a pulling mechanism is provided between the surface of the counterweight and the surface of the diversion housing.

[0012] Preferably, the pulling mechanism includes a pair of fixed plates fixedly connected to the diverter housing, a connecting shaft rotatably arranged between the two fixed plates, a driving part connected to one end of the connecting shaft is installed on one side of one of the fixed plates, a plurality of equidistantly arranged winding wheels are fixedly connected to the connecting shaft, and a pull rope is fixedly connected between the surface of the winding wheels and the surface of the counterweight rod.

[0013] Preferably, when the winding wheel drives the pull rope to rotate in the forward direction, the pull rope drives the water guide brush to bend upward through the counterweight rod; when the winding wheel drives the pull rope to rotate in the reverse direction, the pull rope drives the water guide brush to bend downward through the counterweight rod.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0015] In this invention, a diversion shell, a water inlet pipe, a first chamber, a second chamber, and a water outlet pipe are designed to recycle and reuse the condensate discharged from the cooler for cooling treatment, thereby improving the cooling efficiency of the cooler.

[0016] Meanwhile, a water guide brush strip is installed below the water outlet pipe to cooperate with the water outlet pipe. The water guide brush strip is curved downward and attached to the fins of the cooler. This design has two advantages. First, the condensate discharged from the water outlet pipe will first drip onto the surface of multiple water guide brush strips, and then slowly flow along the bristles to the fins. Compared with the method of condensate dripping directly onto the fins for instantaneous contact cooling, this design avoids the problem that the surface temperature of the fins cannot be fully reduced due to instantaneous contact, effectively breaking through the limitation of heat exchange efficiency under the traditional method. Second, the water guide brush strip makes the contact process between the condensate and the fins more gradual and sufficient, which can make full use of the low temperature contained in the condensate, allowing the fins to absorb cold for a longer period of time, thereby significantly improving the secondary cooling efficiency of the grain cooler and providing a strong guarantee for the efficient operation of the grain cooler.

[0017] Furthermore, this invention also incorporates a drive unit, connecting shaft, winding wheel, pull rope, and counterweight bar. On one hand, when the cooler is working, it can precisely control the uniformity of the downward bending of the water guide brush strip, allowing condensate to flow evenly and fully across the fins, greatly improving cooling efficiency and effect. On the other hand, when the cooler is idle, the water guide brush strip can bend upward to prevent it from creeping due to prolonged contact with the fins, ensuring the water guiding function. At the same time, it prevents the water guide brush strip from occupying part of the space on the fin surface and obstructing airflow. It is worth mentioning that the upwardly bent water guide brush strip can cover the outer port of the water outlet pipe, preventing dust from entering and causing blockage and contamination of the condensate, ensuring unobstructed water outlet pipe and stable operation of the cooler. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a front view schematic diagram of a grain cooler condensate recovery and secondary cooling device proposed in this invention;

[0020] Figure 2 For the present invention Figure 1 A cross-sectional view of the central splitter housing;

[0021] Figure 3 For the present invention Figure 1 Exploded view of the connection between the central water guide brush strip and the diversion housing;

[0022] Figure 4 For the present invention Figure 1Schematic diagram of the connection structure between the horizontal section and the circular magnet;

[0023] Figure 5 for Figure 1 Schematic diagram of the connection structure between the central water guide brush strip and the outlet pipe;

[0024] Figure 6 For the present invention Figure 5 A side-sectional schematic diagram of the connection between the middle filter plate and the flow divider housing;

[0025] Figure 7 For the present invention Figure 5 Schematic diagram of the connection structure between the central water guide brush strip and the outlet pipe;

[0026] Figure 8 For the present invention Figure 1 Schematic diagram showing the connection between the central splitter housing and the outdoor unit of the air conditioner;

[0027] Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point A in the diagram.

[0028] In the diagram: 1. Diverter housing; 11. First chamber; 12. Second chamber; 13. Groove; 14. Top plate; 2. Inlet pipe; 3. Outlet pipe; 4. Water guide brush; 41. Mounting rod; 42. Mounting plate; 43. Mounting groove; 44. Counterweight rod; 5. Filter plate; 51. Abutment rod; 6. Connecting plate; 61. Vertical section; 62. Arc section; 63. Horizontal section; 64. Circular magnet; 7. Locking block; 8. Fixing plate; 81. Connecting shaft; 82. Drive unit; 83. Winding wheel; 84. Pull rope. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0030] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0031] In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Example 1: Refer to Figure 1 , Figure 2 and Figure 8 A condensate recovery and secondary cooling device for a grain cooler includes a distribution shell 1, an inlet pipe 2, several outlet pipes 3, and several guide brushes 4 disposed below the outlet pipes 3. The guide brushes 4 are tightly fitted together. Inside the distribution shell 1, a first cavity 11 and a second cavity 12 are vertically arranged from top to bottom and are interconnected. The inlet pipe 2 is fixedly connected to one side of the distribution shell 1, and its internal channel communicates with the first cavity 11. In this technical solution, the distribution shell 1 is first fixed to the outer shell of the cooler. And ensure that the side of the distribution housing 1 with the water outlet pipe 3 corresponds to the side of the cooler housing with fins. Then, connect the water inlet pipe 2 to the condenser pipe for drainage. At this time, the condensate discharged from the condenser pipe will enter the first cavity 11 of the distribution housing 1 through the water inlet pipe 2, and then flow into the second cavity 12. When the condensate level in the second cavity 12 is close to the inner port of the water outlet pipe 3, the condensate will flow out from the outer end of the water outlet pipe 3 and drip onto the fins of the cooler housing, thereby using the condensate to cool the cooler and improve the cooling efficiency of the cooler.

[0033] Reference Figure 6 The first cavity 11 and the second cavity 12 form an inverted L shape when viewed from top to bottom. The depth of the second cavity 12 is half the depth of the first cavity 11, and the distance between the front and rear walls of the second cavity 12 is smaller than the distance between the front and rear walls of the first cavity 11. Based on this structural design, the volume of the second cavity 12 is smaller than that of the first cavity 11.

[0034] From the perspective of condensate flow efficiency, since the second chamber 12 has a small volume, condensate can fill the inner port of the outlet pipe 3 in a shorter time. In this way, the condensate can quickly flow out through the outlet pipe 3 and drip onto the fins of the cooler shell, achieving timely and effective cooling. This greatly improves the utilization efficiency of the cooler's condensate cooling capacity and enhances the cooling effect.

[0035] From the perspective of maintaining cooling capacity, this design avoids the problem of cooling loss caused by the long-term accumulation of condensate in the distribution shell 1. In traditional designs, if the cavity volume is too large, the condensate will accumulate for a long time and exchange more heat with the surrounding environment, reducing the cooling capacity. However, the smaller volume of the second cavity 12 in this design effectively reduces the residence time of condensate, ensuring that the condensate acts on the fins of the cooler shell at a lower temperature and with a higher cooling capacity, further optimizing the cooling performance of the cooler.

[0036] During the operation of the grain cooler, various impurities may accumulate inside the condenser tubes due to grain dust, equipment wear, and other reasons. If these impurities directly enter the second chamber 12 and are discharged with the condensate, they will not only clog the outlet pipe 3, affecting the normal discharge of condensate, but may also adhere to the fins of the cooler casing, reducing the heat dissipation efficiency of the fins and thus affecting the overall cooling performance of the cooler. Based on this problem, referring to... Figure 3 and Figure 6 The bottom wall of the first chamber 11 is connected to a filter plate 5 located above the second chamber 12. The transverse and longitudinal diameters of the filter plate 5 are adapted to the corresponding transverse and longitudinal diameters of the first chamber 11. This adapted size design ensures that the filter plate 5 completely covers the outlet area of ​​the bottom wall of the first chamber 11. In this way, the condensate flowing from the first chamber 11 into the second chamber 12 will be filtered by the filter plate 5. This can effectively intercept impurities, particles and tiny debris that may be carried in the condensate, ensuring the purity of the condensate and thus providing a reliable guarantee for the stable operation of the cooler.

[0037] Reference Figure 3 and Figure 6 To facilitate subsequent cleaning and replacement of the filter plate 5, in this embodiment, the filter plate 5 is fitted to the bottom wall of the first cavity 11. The top of the diversion housing 1 has a slot 13 of the same size as the filter plate 5. The top of the diversion housing 1 has a detachable top plate 14. The top of the filter plate 5 is fixedly connected with multiple abutment rods 51 that fit against the bottom of the top plate 14 in the vertical direction. When the filter plate 5 needs to be cleaned or replaced, only the top plate 14 needs to be removed first. Since the abutment rods 51 fit against the bottom of the top plate 14, after the top plate 14 is removed, the filter plate 5 loses the constraint of the top and can be easily taken out through the slot 13. This design avoids the problem of difficult disassembly caused by the hidden installation position or complicated fixing method of the filter plate 5, and saves maintenance time and labor costs.

[0038] Reference Figures 1-7To fix the distribution housing 1 to the outer shell of the cooler, a connecting plate 6 is provided on the distribution housing 1. The connecting plate 6 includes a vertical section 61, an arc-shaped section 62, and a horizontal section 63. The arc-shaped section 62 is fixedly connected between the vertical section 61 and the horizontal section 63, making the connecting plate 6 an integral L-shaped structure. The connecting plate 6 is fixedly connected to the distribution housing 1 through the vertical section 61. Multiple horizontally distributed and equidistantly arranged circular magnets 64 are fixedly connected to the bottom of the horizontal section 63. In actual use, the outer shell of the cooler is generally made of iron. In this case, simply attaching the circular magnets 64 at the bottom of the horizontal section 63 to the top of the cooler outer shell can easily fix the distribution housing 1 to the cooler outer shell for cooling operations. This fixing method has many advantages, including convenience, stability, economy, practicality, and versatility. During the fixing process, no complicated tools or cumbersome installation steps are required. The operator only needs to bring the distribution housing 1 close to the cooler outer shell to ensure uniform cooling. Furthermore, the circular magnets 64, evenly distributed at the bottom of the horizontal section 63, gently contact the iron outer shell and quickly fix it using magnetic attraction. Even in confined spaces or inconvenient operating environments, quick installation and disassembly can be easily achieved, greatly saving installation time and labor costs and improving overall work efficiency. At the same time, it is stable and reliable. When the cooler vibrates during operation, the diversion shell 1 will not easily loosen or shift, and can continuously and stably perform its cooling function, providing a solid guarantee for the normal operation of the cooler. From a cost perspective, the circular magnets 64 are inexpensive, the materials used to make the connecting plate 6 are common, and the overall manufacturing cost is not high, which can effectively reduce the production and usage costs of enterprises. Moreover, given that most cooler shells are made of iron, this fixing method based on magnetic attraction is widely applicable and can be used in a variety of different models and specifications of coolers. There is no need to design complex fixing structures for each cooler individually, which greatly improves the product's versatility and market competitiveness.

[0039] Reference Figure 9 Below the connecting plate 6, there is a pair of mirror-symmetrical locking blocks 7 on the diversion housing 1. The top section of the locking block 7 is horizontally inclined downward, while the bottom section is horizontally inclined upward. The side where the top and bottom sections of the locking block 7 meet is pointed. This design allows the locking blocks 7 to be inserted into the fin frame of the cooler housing before the horizontal section 63 is fixed to the top of the cooler housing by the circular magnet 64. This facilitates support before fixing the diversion housing 1 and enhances the stability of the connection with the cooler housing after fixing, in conjunction with the connecting plate 6.

[0040] Example 2: Refer to Figures 1-4Based on the above embodiment one, it also includes several water-guiding brush strips 4 arranged below the water outlet pipe 3. Each water-guiding brush strip 4 is tightly fitted together. One end of each water-guiding brush strip 4 is fixedly connected to a mounting rod 41. A mounting plate 42 located below the water outlet pipe 3 is fixedly connected to the surface of the diversion housing 1. The surface of the mounting plate 42 has a mounting groove 43 that matches the size of the mounting rod 41. The mounting rod 41 is fixedly connected to the inner wall of the mounting groove 43. When the diversion housing 1 is fixed to the top of the cooler housing through the connecting plate 6, the water-guiding brush strips 4 arranged below the water outlet pipe 3 are bent downward at a 45-degree angle and tightly fitted to the fins of the cooler housing. With this design, firstly, the condensate discharged from the water outlet pipe 3 will first drip onto the surface of the multiple water-guiding brush strips 4, and then slowly flow along the bristles to the fins. Compared with the condensate, The design utilizes a direct dripping cooling method onto the fins for instantaneous contact cooling. This avoids insufficient surface temperature reduction due to instantaneous contact, effectively overcoming the limitations of traditional heat exchange efficiency. Secondly, the water guide strip 4 ensures a smoother and more thorough contact between the condensate and the fins, fully utilizing the low temperature of the condensate and allowing the fins to absorb cooling energy for a longer period. This significantly improves the secondary cooling efficiency of the grain cooler, providing a strong guarantee for its efficient operation. When the condensate evaporates or cools on the fin surface, it simultaneously reduces the temperature of the incoming air flowing through the fins, thus achieving an indirect pre-cooling effect on the incoming air. The advantage of this integration is that, based on the improved cooling effect of the water guide strip 4 on the fins, it further expands the design's influence on the incoming air temperature, making the entire cooling process more efficient.

[0041] Example 3: Refer to Figures 1-9 Based on the above embodiment 2, a counterweight rod 44 is fixedly connected to the other end of the water guide brush strip 4. A pulling mechanism is provided between the surface of the counterweight rod 44 and the surface of the diversion housing 1. The pulling mechanism includes a pair of fixed plates 8 fixedly connected to the diversion housing 1. A connecting shaft 81 is rotatably arranged between the two fixed plates 8. A drive part 82 connected to one end of the connecting shaft 81 is installed on one side of one of the fixed plates 8. A plurality of equally spaced winding wheels 83 are fixedly connected to the connecting shaft 81. A pull rope 84 is fixedly connected between the surface of the winding wheel 83 and the surface of the counterweight rod 44.

[0042] In this technical solution, when the condensate recovered in the diversion housing 1 is used to cool the fins of the cooler housing, the drive unit 82, which uses a servo motor, is activated to drive the connecting shaft 81 to rotate. This, in turn, causes the winding wheel 83 to drive the pull rope 84 to rotate in the opposite direction. The pull rope 84, through the counterweight rod 44, causes multiple water guide brushes 4 to bend downwards at a consistent degree. This consistency ensures that the condensate flows evenly along the water guide brushes 4 onto the fins of the cooler housing. If the water guide brushes 4 have different degrees of bending, the condensate will be unevenly distributed, resulting in some fins being over-cooled and others under-cooled. This design effectively avoids the problem of insufficient cooling, achieving uniform cooling of the fins and improving the overall cooling effect. Moreover, the uniformly curved water guide brush 4 allows condensate to flow down slowly and orderly along the brush bristles. Compared to the case where the water guide brush 4 has uneven curvature and the condensate drips down quickly and disorderly, this design greatly extends the contact time between the condensate and the fins. The fins can more fully absorb the cooling energy of the condensate, further improving the cooling efficiency and enhancing the cooling effect on the cooler shell, which helps to improve the overall operating performance of the grain cooler.

[0043] When the cooler is not in use, the start-up servo motor drive unit 82 drives the winding wheel 83 on the connecting shaft 81 to rotate the pull rope 84 in the forward direction. The pull rope 84 drives the water guide brush 4 to bend upward through the counterweight rod 44. This prevents the water guide brush 4 from sticking to the fins. If the water guide brush 4 sticks to the fins for a long time, under its own weight and the possible reaction force from the fins, the water guide brush 4 will creep, that is, produce irreversible plastic deformation. This deformation will prevent the water guide brush 4 from returning to its original shape and degree of curvature, thus affecting the accuracy and uniformity of its subsequent guidance of condensate. In addition, if the water guide brush 4 is always sticking to the fins, it will also occupy part of the space on the fin surface, hindering the normal air circulation. This will cause poor airflow around the fins, reduce heat exchange efficiency, and make the cooler take longer to achieve the expected cooling effect when restarted.

[0044] Meanwhile, the upward-curved water guide strip 4 can also shield the outer end of the water outlet pipe 3. When the cooler is not in use, the water outlet pipe 3 is idle and dust is prone to enter its interior. Dust accumulation may block the water outlet pipe 3, affecting the efficiency of subsequent condensate discharge and even polluting the water quality of the condensate. This design effectively prevents dust from entering the water outlet pipe 3 by shielding it with the water guide strip 4, ensuring the smooth flow of the water outlet pipe 3 and the normal discharge of condensate, thus ensuring the stable operation of the grain cooler.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A grain cooler condensate water recovery and secondary cooling apparatus, characterized by, The utility model relates to a kind of grain cooling machine condensate water recovery and secondary cooling device, including: The inside of the flow distribution shell (1) is provided with a first cavity (11) and a second cavity (12) that are communicated with each other in the vertical direction from top to bottom. The water inlet pipe (2) is fixedly connected to one side of the flow distribution shell (1), and the internal passage of the water inlet pipe (2) is communicated with the first cavity (11). A plurality of water outlet pipes (3) are fixedly connected to the surface of the flow distribution shell (1) in a horizontal and equidistant manner, and the internal passage of the water outlet pipe (3) is communicated with the second cavity (12). A plurality of water guide brush strips (4) are arranged below the water outlet pipe (3), and each of the water guide brush strips (4) is tightly attached to each other. One end of the water guide brush strip (4) is fixedly connected with a mounting rod (41), the surface of the flow distribution shell (1) is fixedly connected with a mounting plate (42) below the water outlet pipe (3), the surface of the mounting plate (42) is provided with a mounting groove (43) matching the size of the mounting rod (41), and the mounting rod (41) is fixedly connected to the inner wall of the mounting groove (43). The other end of the water guide brush strip (4) is fixedly connected with a counterweight rod (44), and a pulling mechanism is arranged between the surface of the counterweight rod (44) and the surface of the flow distribution shell (1). The pulling mechanism includes a pair of fixed plates (8) fixedly connected to the flow distribution shell (1), a connecting shaft (81) rotatably arranged between the two fixed plates (8), a driving portion (82) connected to one end of the connecting shaft (81) on one side of one of the fixed plates (8), a plurality of equally spaced winding wheels (83) fixedly connected to the connecting shaft (81), and a pull rope (84) fixedly connected between the surface of the winding wheel (83) and the surface of the counterweight rod (44).

2. The grain cooling machine condensate water recovery and secondary cooling device according to claim 1, wherein: The first cavity (11) and the second cavity (12) are in inverted L shape when viewed from top to bottom. The depth of the second cavity (12) is half of the depth of the first cavity (11), and the spacing between the front and rear walls of the second cavity (12) is smaller than the spacing between the front and rear walls of the first cavity (11).

3. A grain cooler condensate recovery and secondary cooling apparatus according to claim 2, characterised in that, The bottom wall of the first cavity (11) is connected with a filter plate (5) above the second cavity (12), and the transverse and longitudinal diameters of the filter plate (5) are matched with the corresponding transverse and longitudinal diameters of the first cavity (11).

4. The grain cooler condensate recovery and secondary cooling apparatus of claim 3, wherein, When the filter plate (5) is attached to the bottom wall of the first cavity (11), a slot (13) matching the size of the filter plate (5) is formed in the top of the flow distribution shell (1), a detachable top plate (14) is arranged on the top of the flow distribution shell (1), and a plurality of abutting rods (51) are fixedly connected to the top of the filter plate (5) in the vertical direction and attached to the bottom of the top plate (14).

5. The grain cooler condensate recovery and subcooling device of claim 1, wherein, The shunt shell (1) is provided with a connecting plate (6), the connecting plate (6) comprises a vertical section (61), an arc section (62) and a horizontal section (63), the arc section (62) is fixedly connected between the vertical section (61) and the horizontal section (63), so that the connecting plate (6) forms an integral L-shaped structure, the connecting plate (6) is fixedly connected on the shunt shell (1) through the vertical section (61), and the bottom of the horizontal section (63) is fixedly connected with a plurality of circular magnets (64) which are horizontally distributed and equidistantly arranged.

6. The grain cooler condensate recovery and subcooling device of claim 5, wherein, A pair of clamping blocks (7) which are mirror-symmetric on the shunt shell (1) are arranged below the connecting plate (6), the top section of the clamping block (7) is horizontally inclined downward, the bottom section is horizontally inclined upward, and one side of the intersection of the top section and the bottom section of the clamping block (7) is in the shape of a sharp end.

7. The grain cooler condensate water recovery and secondary cooling device according to claim 1, characterized in that, When the winding wheel (83) drives the pull rope (84) to rotate forward, the pull rope (84) drives the water guide brush strip (4) to bend upward through the counterweight rod (44); When the winding wheel (83) drives the pull rope (84) to rotate reversely, the pull rope (84) drives the water guide brush strip (4) to bend downward through the counterweight rod (44).

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