Granary heat insulation and ventilation integrated system

Abstract

The invention relates to the technical field of granary grain storage, and discloses a granary heat insulation and ventilation integrated system which is arranged in a granary and comprises two sets of integrated heat insulation units, each integrated heat insulation unit comprises a plurality of heat insulation assemblies distributed side by side, and each heat insulation assembly comprises a heat insulation plate and a separation plate; a plurality of vertically-through flow guide grooves are formed in the outer side face of the heat insulation plate, and a plurality of flow guide through holes are formed in the heat insulation plate. A lower diversion seat is arranged at the lower end of the heat insulation assembly, an upper diversion seat is arranged at the upper end of the heat insulation assembly, a diversion pipe is arranged on the upper diversion seat, and an air distribution seat is arranged at the upper end of the heat insulation assembly. The method has the advantages of being convenient to construct, good in heat insulation effect and good in grain pile transverse ventilation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of grain storage in granaries, and in particular to a grain storage heat insulation and ventilation integrated system. Background Art

[0002] Large granaries store enormous amounts of grain. For example, a 50-meter-long, 20-meter-wide, and 7-meter-high (with a 5-meter-high grain pile) silo can hold up to 7,000 cubic meters of grain. To ensure grain quality, low-temperature storage is currently the primary method. Low-temperature storage involves keeping the average temperature below 15°C year-round, with local temperatures not exceeding 20°C. Low temperatures inhibit the activity of stored-grain pests and other life forms, curbing their damage to stored grain and reducing grain respiration, effectively preserving grain quality.

[0003] The heat of a grain pile usually comes from two sources. On the one hand, it comes from heat transfer from the outside. For example, in summer, the temperature of the outer wall of a granary can reach 40°C, and the heat is transferred to the grain pile inside the granary through the wall of the granary. On the other hand, the heat generated by respiration in the grain pile is difficult to release, causing the grain pile to heat up.

[0004] Currently, heat transfer is typically slowed by applying an insulating coating to the exterior walls of granaries. A chiller is installed above the grain pile inside the granary to maintain a low temperature between the grain pile and the top of the silo. Air inlet and air outlet ducts are installed on the opposite inner walls of the silo. A high-pressure fan draws cool air from the top of the grain pile into the inlet ducts and draws it out through the air outlet ducts, creating a horizontal circulation channel for heat dissipation. However, the insulating coating's heat-blocking effect is poor, and the installation of air ducts on the inner walls of the granary results in uneven interior surfaces, making it difficult to clean grain between them. The ducts are also welded together, making their installation inconvenient. Summary of the Invention

[0005] In order to solve the above problems in the prior art, the present invention provides a grain silo heat insulation and ventilation integrated system which is convenient to construct, has good heat insulation effect and good transverse ventilation effect for grain piles.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A grain silo insulation and ventilation integrated system is provided in the grain silo and includes two sets of integrated insulation units provided on two opposing inner walls of the grain silo. The integrated insulation units include a plurality of insulation components arranged side by side. The insulation components include insulation boards and separation boards. The insulation boards are provided with a plurality of vertically evenly distributed and continuous guide channels. The guide channels are divided into air inlet channels and air outlet channels. The outer side surface of the heat insulation board is provided with a plurality of vertically penetrating guide grooves, and the isolation plate is arranged on the outer side surface of the heat insulation board to close the open end of the guide groove, and a plurality of guide flow holes are provided on the isolation plate corresponding to the open end of the guide groove; the lower end of the heat insulation component is provided with a lower guide seat for connecting the air inlet channel and the air outlet channel, and the lower guide seat closes the lower end of the guide groove; the upper end of the heat insulation component is provided with an upper guide seat connected with the upper end of the air inlet channel, and the upper guide seat is provided with a guide pipe, the upper end of the heat insulation component is provided with an air distribution seat connected with the guide groove, and the air distribution seat is provided with an air distribution pipe; the guide pipe is connected to the guide main pipe, and the guide main pipe is provided with a first intake fan; the air distribution pipe on the inner wall of one side of the granary is connected to the air intake main pipe, the air intake main pipe is connected to the second intake fan, and the air distribution pipe on the inner wall of the other side of the granary is connected to the suction main pipe, and the suction main pipe is connected to the suction fan.

[0007] The above technical solution employs a thermal insulation panel installed on the inner wall of the grain silo, which not only improves the silo's airtightness but also offers superior thermal insulation performance compared to the inner wall, inherently reducing heat transfer. Air inlet and outlet channels are provided within the thermal insulation panel, and a first air inlet fan injects cold air (generated by a refrigeration device located between the grain pile and the top of the silo). This cold air enters the inlet and outlet channels and circulates within the silo, directly absorbing heat transferred from the inner wall to the thermal insulation panel, preventing this heat from being transferred to the grain pile. When the temperature within the grain pile exceeds a preset value, a second air inlet fan injects cold air into the guide trough, which is then drawn in by an air intake fan on the other side. This cool air then passes horizontally through the grain pile, absorbing internal heat and thus maintaining a stable temperature control. This integrated thermal insulation and ventilation system utilizes modular insulation components, integrating the insulation and horizontal ventilation systems. This makes it easy to upgrade existing grain silos, offering convenient and short construction periods with minimal structural damage.

[0008] Preferably, the guide channels are evenly distributed in two rows, with one row of guide channels near the inner wall of the granary configured as outlet channels, and the remaining row of guide channels configured as inlet channels. The outlet channels are spaced apart from the inlet channels, and the guide grooves are provided between two adjacent inlet channels. This arrangement allows the gas in the inlet and outlet channels to undergo gradient heat exchange with the insulation board, resulting in a better heat absorption effect and better blocking heat transfer to the grain pile.

[0009] Preferably, a connection base is provided at the upper end of the heat insulation plate, corresponding to the air outlet channel. A plurality of exhaust pipes are provided on the connection base, connected to the air outlet channels, with the exhaust ports of the exhaust pipes facing downward. As there is a lot of dust in the granary, the provision of downward-facing exhaust pipes can reduce dust from settling and entering the guide channel.

[0010] Preferably, the insulation panels are constructed of polyurethane (PU) sheets, with sealant filling the space between the insulation panels and the inner wall of the granary, and between adjacent insulation panels. The separators are metal sheets, and are screwed to the outer surfaces of the insulation panels between adjacent guide grooves. PU offers excellent heat and sound insulation, water resistance, and excellent plasticity for easy processing. Therefore, processing the guide channels and guide grooves is very convenient and easy, with low cracking and cost. The separators are metal sheets, mounted on the surface of the insulation panels, enhancing their strength while providing stable support for the grain pile.

[0011] Preferably, the insulation panels have outer grooves on both left and right ends of their outer sides, each with a hem that bends into the outer grooves. A vertical keel is installed within the outer grooves between adjacent insulation panels. The lower end of the keel is connected to the lower guide seat, and the upper end of the keel is fixedly connected to the inner wall of the granary via the keel seat. The hem snaps into the outer grooves and is pressed against by the keel, thereby further stabilizing the connection between the insulation panels and the insulation board and preventing the edges of the insulation panels from warping. Due to the large area of ​​the insulation panels, the keel further enhances the stability and reliability of the connection between the insulation panels and the inner wall of the granary.

[0012] Preferably, an inner groove is provided on the inner side surface of the heat insulation board at a position corresponding to the outer groove, and a temperature measuring cable is provided in the inner groove. The temperature measuring cable is used to detect the temperature of the inner wall of the granary in real time.

[0013] Preferably, the bottom surface of the lower deflector seat extends outward to form a connecting plate, which is provided with a connecting hole. The connecting hole is fixedly connected to the granary floor via expansion bolts. The upper end of the lower deflector seat extends upward from the outer side to form a baffle for limiting the lower end of the thermal insulation assembly. The lower deflector seat is fixed to the granary floor and serves to position the lower end of the thermal insulation plate. A positioning groove is formed between the baffle and the inner wall of the granary, thereby facilitating installation and construction of the thermal insulation assembly.

[0014] Preferably, a diversion cavity is provided within the lower diversion seat, and a connecting pipe for connecting the diversion channel and the diversion cavity is provided on the top surface of the lower diversion seat. A drain pipe communicating with the diversion cavity is provided on the inner side of the lower diversion seat. The drain pipe extends through the granary and out of the granary, and a valve is provided at the end of the drain pipe. When cold air enters the diversion channel, the air in the diversion channel is pre-cooled and may generate condensation. This condensation flows downward and accumulates in the diversion cavity. The valve periodically drains the condensation out of the granary to ensure that the diversion channel remains unobstructed.

[0015] Preferably, the bottom of the upper guide seat is provided with a plurality of guide branches correspondingly connected to the air inlet channel. The guide branches are connected to the air inlet channel to better ensure the connection sealing.

[0016] Preferably, the other two opposing inner walls of the granary are also provided with two sets of integrated insulation units.

[0017] Therefore, the present invention has the following beneficial effects: (1) the heat insulation board increases the sealing performance of the inner wall of the granary, making the humidity and other conditions in the granary more stable; (2) the heat insulation board itself has good heat insulation performance, which slows down the heat transfer from the inner wall of the granary to the grain pile; (3) a guide channel is set in the heat insulation board, and the cold air flows in the air inlet channel and the air outlet channel to absorb the heat from the inner wall of the granary, thereby blocking the heat transfer to the grain pile; (4) the horizontal ventilation system inside the grain pile is directly integrated into the heat insulation board to realize horizontal ventilation and heat absorption of the grain pile, greatly improving the construction convenience and greatly reducing the structural destructiveness of the granary renovation; (5) the modular structure is adopted, and the construction is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure after removing the granary.

[0020] Figure 3 This is a schematic diagram of the structure of a single integrated insulation unit.

[0021] Figure 4 for Figure 3 Another perspective of the picture.

[0022] Figure 5 Schematic diagram of the connection between two sets of thermal insulation components.

[0023] Figure 6 This is an exploded view of the thermal insulation assembly, lower guide seat, upper guide seat, and air distribution seat.

[0024] Figure 7 for Figure 6 Another perspective of the picture.

[0025] Figure 8 Schematic diagram of the structure of the thermal insulation component.

[0026] Figure 9 Exploded view of the thermal insulation assembly. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. 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 scope of protection of the present invention.

[0028] It should be understood that, in this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as implicitly specifying the quantity of the technical features being referenced. A feature specified as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0029] like Figures 1-9 The illustrated integrated insulation and ventilation system for a granary is installed in a granary 1 and includes two sets of integrated insulation units 2 installed on two opposing granary inner walls 10. The integrated insulation units 2 include several insulation assemblies 20 arranged side by side. The insulation assemblies 20 include insulation boards 21 and separation boards 22. The insulation boards 21 are provided with several vertically evenly distributed and continuous guide channels 210. The guide channels 210 are divided into air inlet channels 211 and air outlet channels 212. The outer side surface of the heat insulation plate 21 is provided with a plurality of vertically penetrating guide grooves 213, the isolation plate 22 is arranged on the outer side surface of the heat insulation plate 21 to close the open end of the guide groove 213, and the isolation plate 22 is provided with a plurality of guide holes 220 corresponding to the open end of the guide groove 213; the lower end of the heat insulation component 20 is provided with a lower guide seat 3 for connecting the air inlet channel 211 and the air outlet channel 212, and the lower guide seat 3 closes the lower end of the guide groove 213; the upper end of the heat insulation component 20 is provided with an upper guide seat 4 connected to the upper end of the air inlet channel 211, and the bottom of the upper guide seat 4 is provided with a plurality of guide holes 220. The dry guide branch pipe 42 is connected to the air inlet channel 211, and the upper guide seat 4 is provided with a guide pipe 40. The upper end of the heat insulation component 20 is provided with an air distribution seat 5 connected to the guide groove 213, and the air distribution seat 5 is provided with an air distribution pipe 50; the guide pipe 40 is connected to the guide main pipe 41, and the guide main pipe 41 is provided with a first air intake fan; the air distribution pipe 50 on the inner wall of one side of the granary 1 is connected to the air intake main pipe 51, and the air intake main pipe 51 is connected to the second air intake fan, and the air distribution pipe 50 on the inner wall of the other side of the granary 1 is connected to the intake main pipe 52, and the intake main pipe 52 is connected to the intake fan.

[0030] The first air inlet fan, the second air inlet fan, and the air suction fan are all devices used in the existing ventilation system of the grain silo and are directly purchased. Those skilled in the art can select corresponding models to meet the ventilation requirements of the grain pile.

[0031] like Figure 5-Figure 8 As shown, the guide channels 210 are evenly distributed in two rows, wherein a row of guide channels 210 close to the inner wall of the granary 1 is configured as air outlet channels 212, and the remaining row of guide channels 210 is configured as air inlet channels 211. The air outlet channels 212 and the air inlet channels 211 are spaced apart, and the guide grooves 213 are arranged between two adjacent air inlet channels 211.

[0032] A connection seat 23 is provided at the upper end of the heat insulation board 21 corresponding to the air outlet channel 212 . The connection seat 23 is provided with a plurality of exhaust pipes 230 correspondingly connected to the air outlet channels 212 . The exhaust ports of the exhaust pipes 230 are distributed downward.

[0033] In this embodiment, the heat insulation panels 21 are made of PU boards. Sealant is filled between the heat insulation panels 21 and the inner wall of the granary, and between adjacent heat insulation panels 21. The isolation panels 22 are configured as metal plates and are screwed to the areas between adjacent guide grooves 213 on the outer surfaces of the heat insulation panels 21. The isolation panels 22 can be made of stainless steel, aluminum, or the like.

[0034] The outer sides of the insulation panels 21 are each provided with an outer groove 214 at both ends. The isolation panels 22 have folded edges 221 at both ends that bend into the outer grooves 214. A vertically distributed keel 6 is installed within the outer grooves 214 between two adjacent insulation panels 21. The lower end of the keel 6 is connected to the lower guide seat 3, and the upper end of the keel 6 is fixedly connected to the inner wall 10 of the granary via the keel seat 60. An inner groove 215 is provided on the inner side of the insulation panels 21, corresponding to the outer groove 214. A temperature measuring cable 7 is installed within the inner groove 215.

[0035] like Figure 6 As shown, the bottom surface of the lower guide seat 3 extends outward to form a connecting plate 30, and a connecting hole 31 is provided on the connecting plate 30. The connecting hole 31 is fixedly connected to the granary floor 11 by an expansion bolt, and the outer side of the upper end of the lower guide seat 3 extends upward to form a baffle 32 for limiting the lower end of the insulation assembly 20.

[0036] A diversion cavity 300 is provided within the lower diversion seat 3. A connecting pipe 33 is provided on the top surface of the lower diversion seat 3 for connecting the diversion channel 210 and the diversion cavity 300. A drain pipe 34 is provided on the inner side of the lower diversion seat 3, communicating with the diversion cavity 300. The drain pipe 34 extends through the granary and out of the granary. A valve 35 is provided at the end of the drain pipe 34 to periodically drain condensed water.

[0037] Typically, an integrated insulation unit 2 is provided on the side wall of the granary (rectangular granary) where the long side is located; in order to further improve the insulation and transverse ventilation effects, as well as improve the sealing of the granary, in some embodiments, the other two opposing granary inner walls 10 of the granary 1 are also provided with two sets of integrated insulation units 2.

[0038] like Figure 1 and Figure 2 As shown, according to the different length and width dimensions of the granary, the corresponding number of insulation components is selected. In order to ensure the uniformity and stability of the air intake in the air intake channel, multiple guide pipes can be set, such as Figure 1 Two sets of main flow guide pipes are set on the long side of the inner wall of the middle grain silo. One set of main flow guide pipes is connected to the upper flow guide seats on the two insulation components, and the other set of main flow guide pipes is connected to the flow guide seats on the three insulation components to ensure that cold air can enter each air intake channel stably. Similarly, multiple main air intake pipes and main air suction pipes can be set to meet the stable air intake and suction in the guide groove. In some embodiments, the main air intake pipe and the main air suction pipe can also be led to the outside of the grain silo through a pipeline and connected to the nitrogen equipment outside the grain silo. Nitrogen is introduced into the grain pile through the nitrogen equipment for pest control. The number of main flow guide pipes and the number of upper flow guide seats connected to a main flow guide pipe at the same time are all set by those skilled in the art according to the actual size of the grain silo and the size of the insulation board.

[0039] In conjunction with the accompanying drawings, the principles of the present invention are as follows: the heat exchange between the inner wall of the grain silo and the grain pile is blocked by the insulation properties of the insulation board itself; the cold air flowing in the air inlet and air outlet channels of the insulation board absorbs the heat of the insulation board, further blocking the heat from being transferred to the grain pile; between the two opposing sets of integrated insulation units, one set of integrated insulation units injects cold air into the grain pile through the guide groove, while the other set of integrated insulation units draws air from the grain pile through the guide groove, thereby achieving horizontal ventilation of the grain pile and absorbing the heat within the grain pile. By combining the above-mentioned insulation and heat absorption, the temperature within the grain pile can be better controlled, and the quality of grain storage in the granary can be improved.

[0040] In the description of the present invention, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0041] Although specific embodiments of the present invention are described in detail herein, they are provided for illustrative purposes only and should not be considered to limit the scope of the present invention. Various substitutions, changes, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A grain silo insulation and ventilation integrated system, arranged in a grain silo (1), characterized in that: The invention comprises two sets of integrated heat-insulating units (2) arranged on two opposing inner walls (10) of a granary, wherein the integrated heat-insulating units (2) comprise a plurality of heat-insulating components (20) arranged side by side, wherein the heat-insulating components (20) comprise a heat-insulating plate (21) and a separation plate (22), wherein the heat-insulating plate (21) is provided with a plurality of vertically evenly distributed and continuous flow-guiding channels (210), wherein the flow-guiding channels (210) are divided into an air inlet channel (211) and an air outlet channel (212); The outer side surface of the heat insulation plate (21) is provided with a plurality of vertically penetrating guide grooves (213); the isolation plate (22) is arranged on the outer side surface of the heat insulation plate (21) to close the open ends of the guide grooves (213); and the isolation plate (22) is provided with a plurality of guide holes (220) corresponding to the open ends of the guide grooves (213); The lower end of the heat insulation component (20) is provided with a lower guide seat (3) for connecting the air inlet channel (211) and the air outlet channel (212), and the lower guide seat (3) closes the lower end of the guide groove (213); the upper end of the heat insulation component (20) is provided with an upper guide seat (4) connected to the upper end of the air inlet channel (211), and the upper guide seat (4) is provided with a guide pipe (40); the upper end of the heat insulation component (20) is provided with an air distribution seat (5) connected to the guide groove (213), and the air distribution seat (5) is provided with an air distribution pipe (50); The guide pipe (40) is connected to a guide main pipe (41), and the guide main pipe (41) is provided with a first air intake fan; wherein the air distribution pipe (50) on the inner wall of one side of the granary (1) is connected to the air intake main pipe (51), and the air intake main pipe (51) is connected to the second air intake fan; the air distribution pipe (50) on the inner wall of the other side of the granary (1) is connected to an air intake main pipe (52), and the air intake main pipe (52) is connected to the air intake fan.

2. The grain silo insulation and ventilation integrated system according to claim 1 is characterized in that: The guide channels (210) are evenly distributed in two rows, wherein one row of guide channels (210) close to the inner wall of the granary (1) is configured as an air outlet channel (212), and the other row of guide channels (210) is configured as an air inlet channel (211). The air outlet channels (212) and the air inlet channels (211) are spaced apart, and the guide groove (213) is provided between two adjacent air inlet channels (211).

3. The grain silo insulation and ventilation integrated system according to claim 2 is characterized in that: A connection seat (23) is provided at the upper end of the heat insulation plate (21) corresponding to the air outlet channel (212), and a plurality of exhaust pipes (230) correspondingly connected to the air outlet channel (212) are provided on the connection seat (23), with exhaust ports of the exhaust pipes (230) distributed downward.

4. A grain silo insulation and ventilation integrated system according to claim 1, 2 or 3, characterized in that: The heat insulation board (21) is made of PU board, the space between the heat insulation board (21) and the inner wall of the granary is filled with sealant, and the space between two adjacent heat insulation boards (21) is filled with sealant. The isolation board (22) is configured as a metal board, and the isolation board (22) and the area between adjacent guide grooves (213) on the outer surface of the heat insulation board (21) are connected by screws.

5. The grain silo insulation and ventilation integrated system according to claim 4 is characterized in that: The left and right ends of the outer side surface of the heat insulation board (21) are both provided with outer grooves (214), and the two ends of the isolation board (22) are provided with folded edges (221) that are bent into the outer grooves (214); a vertically distributed keel (6) is provided in the outer groove (214) between two adjacent heat insulation boards (21), the lower end of the keel (6) is connected to the lower guide seat (3), and the upper end of the keel (6) is fixedly connected to the inner wall (10) of the granary through the keel seat (60).

6. The grain silo thermal insulation and ventilation integrated system according to claim 5 is characterized in that: An inner groove (215) is provided on the inner side surface of the heat insulation plate (21) at a position corresponding to the outer groove (214), and a temperature measuring cable (7) is provided in the inner groove (215).

7. The grain silo thermal insulation and ventilation integrated system according to claim 1 is characterized in that: The bottom surface of the lower guide seat (3) extends outward to form a connecting plate (30), and a connecting hole (31) is provided on the connecting plate (30). The connecting hole (31) is fixedly connected to the granary floor (11) via an expansion bolt. The outer side of the upper end of the lower guide seat (3) extends upward to form a baffle (32) for limiting the lower end of the heat insulation assembly (20).

8. The grain silo insulation and ventilation integrated system according to claim 7 is characterized in that: A flow guide cavity (300) is provided in the lower flow guide seat (3), and a connecting pipe (33) for connecting the flow guide channel (210) and the flow guide cavity (300) is provided on the top surface of the lower flow guide seat (3); a drainage pipe (34) communicating with the flow guide cavity (300) is provided on the inner side of the lower flow guide seat (3), the drainage pipe (34) passing through the granary and extending outside the granary, and a valve (35) is provided at the end of the drainage pipe (34).

9. The grain silo insulation and ventilation integrated system according to claim 1 is characterized in that: The bottom of the upper flow guide seat (4) is provided with a plurality of flow guide branches (42) correspondingly connected to the air inlet channels (211).

10. The grain silo insulation and ventilation integrated system according to claim 1 is characterized in that: The remaining two facing granary inner walls (10) of the granary (1) are also provided with two sets of integrated heat insulation units (2).

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