Fan interface anti-condensation structure applied to granary

Abstract

The application relates to a fan interface anti-condensation structure applied to a granary, and belongs to the technical field of granary storage equipment, which comprises a heat insulation pipe, the heat insulation pipe is arranged in a wall, and the two ends of the heat insulation pipe are connected with external ventilation components and internal ventilation components through connecting pieces respectively. The application has the effects of reducing the heat transfer coefficient at the ventilation opening of the granary, reducing the condensation phenomenon, avoiding the mildewing of grains, and guaranteeing the storage safety of the grains.

Description

Technical Field

[0001] This application relates to the field of grain storage equipment technology, and in particular to an anti-condensation structure for the fan interface of a grain warehouse. Background Technology

[0002] A grain silo is a specialized building used for storing food, while a grain silo system refers to a system of facilities and equipment used for storing and transferring grain. This system mainly includes silo assemblies, loading and unloading equipment, ventilation systems, fumigation systems, and cleaning and metering equipment. Among these, the design and application of the ventilation system are crucial for ensuring grain quality, preventing pests, and minimizing grain loss.

[0003] Grain storage ventilation systems, through ventilation cages or floor troughs installed within the grain storage area, effectively achieve air circulation and ensure proper temperature and humidity control of the grain storage environment. However, currently in the grain storage industry, to ensure the structural stability and durability of the ventilation system, metal pipes are commonly used in its design and installation. The stainless steel pipes used for the fan interfaces in traditional ventilation systems, due to their material properties, easily conduct a large amount of heat under direct sunlight, resulting in a significant temperature difference between the inside and outside of the ventilation openings. Under these temperature conditions, water vapor at the ventilation openings easily condenses. Since condensation can cause mold growth on the grain, it severely affects the quality of the stored grain. Utility Model Content

[0004] In order to reduce the heat transfer coefficient at the ventilation opening of the grain warehouse, thereby reducing condensation, preventing grain from becoming moldy, and ensuring the safety of grain storage, this application provides an anti-condensation structure for the fan interface of a grain warehouse.

[0005] This application provides a condensation prevention structure for a fan interface in a grain silo, employing the following technical solution: A condensation prevention structure for a fan interface in a grain silo includes a heat insulation pipe installed inside a wall. Both ends of the heat insulation pipe are connected to a sealing assembly and an air distribution box via connectors.

[0006] By adopting the above technical solutions, the application of heat insulation pipes can effectively block heat caused by external environmental factors such as sunlight from being conducted to the inside of the grain silo through the pipes, thereby reducing condensation on the grain near the ventilation openings in the grain silo due to excessive local temperature differences. By reducing the occurrence of condensation, the situation of mold growth on the grain in this area due to high humidity can be reduced, thereby improving the safety and stability of grain storage in the grain silo.

[0007] Optionally, the heat insulation pipe includes an inner pipe, the inner pipe having a sandwich layer along its outer periphery, and the sandwich layer having an outer pipe along its outer periphery.

[0008] By adopting the above technical solution, the outer and inner tubes can be made of heat-insulating materials, and the middle sandwich part can be flexibly selected according to different environments and different needs, thereby improving the applicability of the structure; such a three-layer composite structure can make the structure more stable.

[0009] Optionally, the outer tube can be made of plastic / PP / fiberglass, and the inner tube can be made of plastic / PP / fiberglass.

[0010] By adopting the above technical solutions, plastics, PP and fiberglass are all polymer materials and their composite materials. They are lightweight, corrosion-resistant, have low thermal conductivity, and good thermal insulation properties. They can effectively block external heat from being conducted into the grain silo, reduce the temperature difference near the silo's ventilation openings, thereby reducing condensation, reducing grain mold, and improving grain quality.

[0011] Optionally, the interlayer material can be aerogel felt / insulation cotton / polyurethane foam.

[0012] By adopting the above technical solutions, the use of sandwich insulation materials further improves the thermal insulation performance of the insulation pipe. Aerogel felt, insulation cotton and polyurethane foam all have very low heat transfer coefficients. They are lightweight insulation materials that achieve thermal insulation through their own physical structure, and can block the heat conduction in air molecules to a great extent.

[0013] Optionally, the sealing assembly includes a sealing door and several hinge seats. The several hinge seats are fixed to the outer circumferential surface of the air inlet end of the heat insulation pipe. A connecting rod is hinged to each hinge seat. A handwheel is connected to the end of the connecting rod away from the hinge seat. The handwheel and the connecting rod are threaded together. The handwheel, the connecting rod, and the hinge seats correspond one-to-one. The sealing and opening of the sealing door can be achieved by controlling the handwheel. A first sealing ring is engaged between the sealing door and the air inlet end of the heat insulation pipe.

[0014] By adopting the above technical solution, the air inlet of the heat insulation pipe can be sealed by adjusting the handwheel to tighten the sealing door, preventing outside air and water vapor from entering the heat insulation pipe, thereby ensuring the airtightness of the grain silo, effectively avoiding condensation, and reducing the possibility of grain mold. The first sealing ring can further improve the sealing performance of the air inlet of the heat insulation pipe and the sealing door, effectively filling gaps and preventing outside air and water vapor from entering the grain silo through the interface.

[0015] Optionally, a clearance groove is provided in the wall, and the air inlet end of the heat insulation pipe is located in the clearance groove. Consequently, the hinge seat, the connecting rod, the handwheel, the sealing door, and the first sealing ring are all located in the clearance groove, which provides space for the connecting rod and the handwheel to rotate.

[0016] By adopting the above technical solution, the clearance groove is used to accommodate the connecting rod and handwheel after flipping, providing room for the connecting rod and handwheel to move and facilitate daily operation; at the same time, the wall-mounted design of the clearance groove allows components such as the sealing door to be located inside the wall, avoiding direct sunlight from generating heat and then conducting it into the chamber, thus improving the heat insulation of the device.

[0017] Optionally, a door frame is provided in the clearance groove, the door frame is adapted to the clearance groove, an insulated door is provided at one end of the door frame outside the warehouse, and a second sealing ring is fitted at the opening of the door frame.

[0018] By adopting the above technical solutions, the door frame provides the installation foundation for the insulated door, which can further enhance the heat insulation performance of the grain silo, reduce the transfer of external heat into the grain silo, maintain the stability of the temperature inside the grain silo, reduce the occurrence of condensation, and reduce the possibility of grain mold. The second sealing ring can further improve the sealing performance at the connection between the door frame and the insulated door, so as to better isolate the external temperature, which is conducive to maintaining a low temperature environment inside the grain silo, significantly reducing condensation, reducing the risk of grain mold, and ensuring the safety and quality stability of grain storage.

[0019] Optionally, a nitrogen gas outlet pipe is connected to the heat insulation pipe.

[0020] By adopting the above technical solution, a nitrogen gas control outlet pipe is provided for the grain silo, which facilitates the discharge of gas inside the silo. In conjunction with the nitrogen gas control inlet pipe set up separately inside the silo, nitrogen gas control can be achieved in the grain silo. By filling the grain silo with nitrogen, the oxygen content inside the silo can be reduced, the nitrogen concentration inside the silo can be maintained in balance, and the respiration of grain and the growth and reproduction of microorganisms and pests can be inhibited, thereby better protecting the quality of grain and preventing grain mold and pests.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By using insulated pipes instead of the original stainless steel pipes installed in the walls, heat sources such as sunlight from the outside are effectively blocked from entering the grain silo through the pipes. This reduces the amount of heat conducted from the outside into the silo through the pipe walls of the ventilation ducts, thereby reducing the temperature difference near the ventilation openings. Combined with the auxiliary insulation of the door frame and insulated door, this significantly reduces the local temperature difference near the ventilation openings caused by external factors such as sunlight, fundamentally reducing the probability of condensation and creating a stable temperature environment for the grain.

[0022] 2. Use materials with good thermal insulation properties such as plastic / PP / fiberglass as the outer and inner pipes of the insulation pipe. The middle interlayer is filled with materials with low heat transfer coefficients such as aerogel felt / insulation cotton / polyurethane foam. Using such multi-layer materials to make the insulation pipe enhances the thermal insulation effect. At the same time, the outer pipe forms physical protection for the internal structure. The use of these insulation materials not only strengthens the heat blocking ability, but also improves the corrosion resistance and damage resistance of the pipe, and extends its service life. 3. The first sealing ring at the air inlet end of the heat insulation pipe, in conjunction with the sealing door and the handwheel-adjustable clamping structure, effectively prevents the infiltration of outside air and moisture. The second sealing ring at the door frame opening enhances the sealing performance between the heat insulation door and the door frame. Combined with the clearance groove design for the sealing components, it ensures both ease of operation and enhanced airtightness of the grain silo, avoiding interference from the external environment on the humidity inside the silo and further reducing the possibility of mold growth. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0024] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0025] Figure 3 yes Figure 1 Enlarged diagram of part B.

[0026] Explanation of reference numerals in the attached drawings: 1. Insulation pipe; 11. Outer pipe; 12. Interlayer; 13. Inner pipe; 2. Sealing assembly; 21. Hinge seat; 22. Connecting rod; 23. Handwheel; 24. Sealing door; 25. First sealing ring; 31. Relief groove; 32. Door frame; 33. Second sealing ring; 34. Insulated door; 4. Nitrogen gas outlet pipe. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses an anti-condensation structure for the fan interface of a grain warehouse.

[0029] like Figures 1 to 3 A fan interface anti-condensation structure for grain silos includes a heat insulation pipe 1, which is horizontally embedded inside the grain silo wall and has its air inlet end extending outside the wall. The air inlet end of the heat insulation pipe 1 is connected to a sealing component 2, and the end of the heat insulation pipe 1 away from the air inlet end is connected to an air distribution box to form a complete ventilation duct. The heat insulation pipe 1 includes an outer pipe 11, an inner pipe 13 and a sandwich 12. The sandwich 12 completely covers the outer wall of the inner pipe 13, and the outer pipe 11 completely covers the outside of the sandwich 12. The three-layer structure is tightly connected. In this embodiment, the outer tube 11 is made of plastic injection molding, the inner tube 13 is made of PP injection molding, and the interlayer 12 between the outer tube 11 and the inner tube 13 is aerogel felt. The aerogel felt must be fully filled to ensure the stability of the heat insulation of the heat insulation tube 1. In other embodiments, the outer tube 11 can be made of other rigid thermal insulation materials such as PP and fiberglass, the inner tube 13 can be made of other rigid thermal insulation materials such as plastic and fiberglass, and the middle interlayer 12 can be filled with other materials with low heat transfer coefficients such as thermal insulation cotton and polyurethane foam. The materials of the outer tube 11, inner tube 13 and interlayer 12 can be arbitrarily selected and combined according to the environment and needs. A clearance groove 31 is provided inside the wall. The air inlet end of the heat insulation pipe 1 is located in the clearance groove 31. Several hinge seats 21 are connected to the air inlet end of the heat insulation pipe 1. The hinge seats 21 are equidistantly arranged along the outer circumference of the air inlet end of the heat insulation pipe 1, so that all the hinge seats 21 are also located in the clearance groove 31. A connecting rod 22 is hinged to the hinge seat 21. A handwheel 23 is connected to the end of the connecting rod 22 away from the hinge seat 21. The connecting rod 22 and the handwheel 23 are also all located in the clearance groove 31. The number of handwheel 23, connecting rod 22 and hinge seat 21 are equal and correspond one-to-one.

[0030] The sealing assembly 2 includes a sealing door 24, which is installed on the air inlet of the heat insulation pipe 1 and located inside the wall. A first sealing ring 25 is provided at the connection between the sealing door 24 and the air inlet of the heat insulation pipe 1. The first sealing ring 25 can further improve the sealing performance of the air inlet of the heat insulation pipe 1 and the sealing door 24, effectively fill the gaps, and prevent outside air, water vapor, etc. from entering the grain silo through the interface. A door frame 32 is provided inside the relief groove 31. The shape of the door frame 32 is adapted to the relief groove 31, and the door frame 32 fits the relief groove 31. An insulated door 34 is provided at the external interface of the door frame 32, and a second sealing ring 33 is provided at the interface between the insulated door 34 and the door frame 32. In this embodiment, the insulated door 34 is hinged to the door frame 32; in other embodiments, the insulated door 34 can be snapped onto the door frame 32.

[0031] The heat insulation pipe 1 is equipped with a nitrogen gas outlet pipe 4, which is located inside the wall. When nitrogen is added to the grain silo, air is discharged through the nitrogen gas outlet pipe 4 to reduce the oxygen content in the silo, inhibit the respiration of the grain and the growth and reproduction of microorganisms and pests, thereby better protecting the quality of the grain and preventing grain mold and pests.

[0032] The implementation principle of this application embodiment is as follows: When ventilation is required in the grain silo, first open the insulation door 34, then adjust the handwheel 23 to separate the handwheel 23 from the sealing door 24, control the handwheel 23 and connecting rod 22 to rotate into the clearance groove 31, open the sealing door 24, connect the fan, and introduce air into the grain silo; after ventilation is completed, turn off and remove the fan, control the handwheel 23 and connecting rod 22 to rotate to the sealing door 24, tighten the handwheel 23 to fix the sealing door 24, close the insulation door 34, and complete the ventilation.

[0033] The outer tube 11 of the three-layer heat insulation pipe structure is made of plastic, ensuring the stability and durability of the entire structure. The interlayer 12 is filled with aerogel felt, which has a very low heat transfer coefficient and can effectively reduce heat conduction caused by the temperature difference between the inside and outside. The inner tube 13 is made of PP. These materials have good heat insulation properties, which can reduce the external heat conducted into the silo through the pipes, thereby reducing the temperature difference near the silo ventilation opening, reducing condensation, reducing the occurrence of grain mold, and improving grain quality.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A condensation prevention structure for a fan interface in a grain silo, characterized in that: Includes a heat insulation pipe (1), which is installed inside the wall. The air inlet end of the heat insulation pipe (1) is connected to a sealing assembly (2), and the end of the heat insulation pipe (1) away from the air inlet end is connected to an air distribution box. The sealing assembly (2) includes a sealing door (24) and several hinge seats (21). Several hinge seats (21) are fixed on the outer circumferential surface of the air inlet end of the heat insulation pipe (1). A connecting rod (22) is hinged to the hinge seat (21). A handwheel (23) is connected to the end of the connecting rod (22) away from the hinge seat (21). The handwheel (23) and the connecting rod (22) are threaded together. The handwheel (23), the connecting rod (22) and the hinge seat (21) correspond one-to-one. The sealing and opening of the sealing door (24) can be achieved by controlling the handwheel (23). A first sealing ring (25) is provided at the air inlet end of the heat insulation pipe (1) where the sealing door (24) is located. A clearance groove (31) is provided inside the wall. The air inlet end of the heat insulation pipe (1) is located in the clearance groove (31). Furthermore, the hinge seat (21), the connecting rod (22), the handwheel (23), the sealing door (24), and the first sealing ring (25) are all located in the clearance groove (31). The clearance groove (31) provides a turning space for the connecting rod (22) and the handwheel (23). A door frame (32) is provided inside the clearance groove (31). The door frame (32) is adapted to the clearance groove (31). An insulated door (34) is provided at one end of the door frame (32) outside the warehouse. A second sealing ring (33) is fitted at the opening of the door frame (32).

2. The anti-condensation structure for the fan interface in a grain silo according to claim 1, characterized in that: The heat insulation pipe (1) includes an inner pipe (13), the inner pipe (13) is provided with a sandwich (12) along its outer periphery, and the sandwich (12) is provided with an outer pipe (11) along its outer periphery.

3. The anti-condensation structure for the fan interface in a grain silo according to claim 2, characterized in that: The outer tube (11) can be made of plastic / PP / fiberglass, and the inner tube (13) can be made of plastic / PP / fiberglass.

4. The anti-condensation structure for the fan interface in a grain silo according to claim 2, characterized in that: The material of the interlayer (12) can be aerogel felt / insulation cotton / polyurethane foam.

5. The anti-condensation structure for the fan interface in a grain silo according to claim 1, characterized in that: The heat insulation pipe (1) is connected to a nitrogen gas outlet pipe (4).

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