Grain depot internal and external circulation ventilation device
By designing the internal and external circulation ventilation device of the grain warehouse, the up and down circulation channels and ventilation holes of the airflow are used to drain the cold air at the top of the grain pile to the bottom, solving the problem of insufficient cooling at the bottom and center of the grain pile, and achieving the effect of energy saving and consumption reduction.
Patent Information
- Application Number
- CN202422209699.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the existing storage methods of grain piles, the cooling effect at the bottom and center of the grain pile is not obvious, and the energy consumption is high.
Design an internal and external circulation ventilation device of the grain warehouse, including ventilation holes, grain air barriers and upper and lower circulation channels of the air flow. The cold air on the top side of the grain pile is drained to the bottom through the upper and lower circulation channels of the air flow, forming an internal circulation or combining outdoor cold air for external circulation and cooling.
The cooling effect at the bottom and center of the grain pile is improved, and energy saving and consumption reduction is achieved.
Smart Images
Figure CN223142541U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of temperature regulation in storage warehouses, and particularly relates to an internal and external circulation ventilation device for grain warehouses. Background Art
[0002] The storage of agricultural products such as grains requires a relatively low temperature environment. Common grain storage adopts the bulk stacking method. The grain pile has a high height and a large area of the grain warehouse, making it easy for the center of the grain pile to have a relatively high temperature. Existing storage warehouses often use fans or air conditioners for cooling. The air outlet of the air conditioner is located above the grain pile, and the cold air accumulates at the top of the grain pile and is difficult to reach the center of the bottom of the grain pile. Therefore, the cooling effect on the bottom and center of the grain pile is not obvious. Content of the Utility Model
[0003] The purpose of the utility model is to solve the defect that it is not easy to cool the bottom and center of the grain pile in the existing bulk grain storage method, and to provide an internal and external circulation ventilation device for grain warehouses that can not only improve the cooling effect of the bottom and center of the grain pile but also save energy and reduce consumption.
[0004] To this end, the utility model adopts the following technical solutions: An internal and external circulation ventilation device for a grain warehouse, including a ventilation mechanism arranged at the bottom of the grain warehouse wall. The ventilation mechanism includes ventilation holes. A sealed door is installed at the orifice of the ventilation hole on the outer wall surface. A grain blocking and air guiding member is arranged at the orifice of the ventilation hole on the inner wall surface. A fan is arranged in the inner cavity of the ventilation hole. The characteristic is that the internal and external circulation ventilation device further includes an air flow up and down circulation channel. The top opening of the air flow up and down circulation channel is located above the grain storage surface of the grain warehouse, and the bottom opening of the air flow up and down circulation channel is located on the hole wall of the ventilation hole. Usually, the outdoor temperature of the grain warehouse is much higher than the required temperature inside the grain warehouse. When the utility model is in use, the sealed door is closed, and the cold air on the top side of the grain pile is drained to the bottom of the grain warehouse through the air flow up and down circulation channel, so that a cold air flow circulation can be formed between the top side and the bottom side of the grain pile. When the outdoor temperature is relatively low, the sealed door can be opened, and the cold air outside is blown into the bottom of the grain pile through the fan to form an internal and external air flow circulation.
[0005] As a supplement and improvement of the above technical solution, the utility model further includes the following technical features.
[0006] The internal and external circulation ventilation device for the grain warehouse further includes a ground trough located on the ground of the grain warehouse. A grain blocking plate is installed on the ground trough. The grain blocking plate is provided with ventilation holes that grains cannot pass through. The grain blocking and air guiding member is a box-type structure provided with a ventilation cavity. One side of the ventilation cavity is communicated with the ventilation hole, and one side is communicated with the ground trough. The cold air is transported to the bottom of the grain pile through the ground trough.
[0007] The described up-and-down air flow circulation channel includes an air pipeline installed on the wall surface of the warehouse wall and an air through-hole provided on the wall. An opening is provided on the top side of the air pipeline as the top opening of the up-and-down air flow circulation channel. One end opening of the air through-hole is connected to the bottom opening of the air pipeline, and the other end opening of the air through-hole serves as the bottom opening of the up-and-down air flow circulation channel and is located on the pore wall of the ventilation hole.
[0008] The described up-and-down air flow circulation channel is an air circulation through-hole provided in the wall. The top opening of the air circulation through-hole serves as the top opening of the up-and-down air flow circulation channel and is located on the wall surface of the wall above the grain storage surface in the grain warehouse.
[0009] A sealing door is installed on the top opening of the up-and-down air flow circulation channel.
[0010] The ventilation hole is divided into two sections, and a partition door is installed between the two sections. The fan is installed in the section close to the inner wall surface, and the bottom outlet of the up-and-down air flow circulation channel is located on the pore wall of the section close to the outer wall surface.
[0011] The utility model can achieve the following beneficial effects: By providing an up-and-down air flow circulation channel connecting the space above the grain pile and the ventilation mechanism at the bottom of the wall, the cold air at the top of the grain pile in the warehouse can be guided to the bottom of the grain pile to form an internal circulation. Through the ventilation hole of the ventilation mechanism connecting the inside and outside of the warehouse, an external air circulation can be realized. The indoor circulation or outdoor circulation of the cold air can be selected according to the requirements of the outdoor temperature and the indoor temperature of the warehouse, improving the cooling effect of the grain pile and saving energy and reducing consumption. Description of the Drawings
[0012] Figure 1 is a schematic diagram of the grain warehouse structure using the utility model.
[0013] Figure 2 is Figure 1 A-A sectional view of the situation where the up-and-down air flow circulation channel is located outdoors.
[0014] Figure 3 is Figure 1 A-A sectional view of the situation where the up-and-down air flow circulation channel is located indoors.
[0015] Figure 4 is Figure 1 A-A sectional view of the situation where the up-and-down air flow circulation channel is located in the wall.
[0016] The reference numerals of the same parts in the three implementation diagrams are the same. Detailed Implementation Modes
[0017] The following describes in detail the specific implementation modes of the utility model with reference to the drawings. The described embodiments are only illustrations and explanations of the invention-creation and do not constitute the sole limitation of the invention-creation.
[0018] Embodiment 1
[0019] As Figure 1 and Figure 2 shown, the utility model is an internal and external circulation ventilation device for a grain depot, which includes a ventilation mechanism 3 arranged at the bottom of the grain depot wall 1, an air flow up-and-down circulation channel 2, and a ground trough 7 located on the ground of the grain depot. The ventilation mechanism 3 includes a ventilation hole 32, which is divided into two sections, a partition door 5 is installed between the two sections, a sealing door 31 is installed at the orifice of the ventilation hole 32 on the outer wall surface, a grain blocking and air guiding member 34 is arranged at the orifice of the ventilation hole 32 on the inner wall surface, and a fan 33 is arranged in the inner cavity of a section of the ventilation hole 32 close to the inner wall surface. The air flow up-and-down circulation channel 2 includes an air pipeline 22 installed on the outer wall surface of the warehouse wall and air through holes arranged on the wall. The air pipeline 22 is composed of a framework and a surrounding plate wrapped outside the framework. The air through holes include an upper air through hole 21 and a lower air through hole 23 communicated with the inner cavity of the air pipeline 22. The upper air through hole 21 is located at the top of the air pipeline 22, and the lower air through hole 23 is located at the bottom of the air pipeline 22. The opening of the upper air through hole 21 located indoors is above the grain stacking surface of the grain depot, and a sealing door 4 is installed on the opening. The opening of the lower air through hole 23 is located on the hole wall of a section of the ventilation hole 32 close to the outer wall surface. The grain blocking and air guiding member 34 is a box-type structure provided with a ventilation cavity, which is composed of a framework and a surrounding plate wrapped outside the framework. One side of the ventilation cavity is communicated with the ventilation hole 32, and the other side is communicated with the ground trough 7. A grain blocking plate 6 is installed on the ground trough 7, and ventilation holes through which grains cannot pass are arranged on the grain blocking plate. Cold air is transported to the bottom of the grain pile through the ground trough.
[0020] Generally, the outdoor temperature of a grain depot is much higher than the required indoor temperature of the grain depot. When the utility model is in use, the sealing door is closed, and the cold air at the top side of the grain pile is diverted to the bottom of the grain depot through the air flow up-and-down circulation channel, so that a cold air flow circulation can be formed between the top side and the bottom side of the grain pile. When the outdoor temperature is relatively low, the sealing door can be opened, and the cold air outside can be blown into the bottom of the grain pile through the fan to form an internal and external air flow circulation.
[0021] Embodiment 2
[0022] As Figure 1 and Figure 3As shown in the figure, the utility model is an internal and external circulation ventilation device for a grain depot, which includes a ventilation mechanism 3 arranged at the bottom of the grain depot wall 1, an air flow up and down circulation channel 2, and a floor trench 7 located on the ground of the grain depot. The ventilation mechanism 3 includes ventilation holes 32. The ventilation holes 32 are divided into two sections, and a partition door 5 is installed between the two sections. A sealed door 31 is installed at the orifice of the ventilation hole 32 on the outer wall surface. A grain blocking and air guiding member 34 is arranged at the orifice of the ventilation hole 32 on the inner wall surface. A fan 33 is arranged in the inner cavity of the section of the ventilation hole 32 close to the inner wall surface. The air flow up and down circulation channel 2 includes an air pipeline 22 installed on the inner wall surface of the warehouse wall and air through holes arranged on the wall. The air pipeline 22 is composed of a framework and a surrounding plate wrapped outside the framework. The air through hole is a lower air through hole 23 communicated with the inner cavity of the air pipeline 22 and is located at the bottom of the air pipeline 22. The top of the air pipeline 22 is open, and this opening is above the grain stacking surface of the grain depot. A sealing door 4 is installed on the opening. The opening of the lower air through hole 23 is on the hole wall of the section of the ventilation hole 32 close to the outer wall surface. The grain blocking and air guiding member 34 is a box-type structure provided with a ventilation cavity and is composed of a framework and a surrounding plate wrapped outside the framework. One side of the ventilation cavity is communicated with the ventilation hole 32, and one side is communicated with the floor trench 7. A grain blocking plate 6 is installed on the floor trench 7, and ventilation holes through which grains cannot pass are arranged on the grain blocking plate. Cold air is transported to the bottom of the grain pile through the floor trench.
[0023] Embodiment 3
[0024] As Figure 1 and Figure 4 As shown in the figure, the utility model is an internal and external circulation ventilation device for a grain depot, which includes a ventilation mechanism 3 arranged at the bottom of the grain depot wall 1, an air flow up and down circulation channel 2, and a floor trench 7 located on the ground of the grain depot. The ventilation mechanism 3 includes ventilation holes 32. The ventilation holes 32 are divided into two sections, and a partition door 5 is installed between the two sections. A sealed door 31 is installed at the orifice of the ventilation hole 32 on the outer wall surface. A grain blocking and air guiding member 34 is arranged at the orifice of the ventilation hole 32 on the inner wall surface. A fan 33 is arranged in the inner cavity of the section of the ventilation hole 32 close to the inner wall surface. The air flow up and down circulation channel 2 is an air circulation hole 24 arranged in the wall. The top side opening of the air circulation hole 24 serves as the top opening of the air flow up and down circulation channel and is on the inner wall surface of the wall above the grain stacking surface of the grain depot. A sealing door 4 is installed on the top side opening; the bottom side opening of the air circulation hole 24 is on the hole wall of the section of the ventilation hole 32 close to the outer wall surface. The grain blocking and air guiding member 34 is a box-type structure provided with a ventilation cavity and is composed of a framework and a surrounding plate wrapped outside the framework. One side of the ventilation cavity is communicated with the ventilation hole 32, and one side is communicated with the floor trench 7. A grain blocking plate 6 is installed on the floor trench 7, and ventilation holes through which grains cannot pass are arranged on the grain blocking plate. Cold air is transported to the bottom of the grain pile through the floor trench.
Claims
1. Grain depot internal and external circulation ventilation device, including a ventilation mechanism arranged at the bottom of the grain depot wall. The ventilation mechanism includes ventilation holes. A sealed door is installed at the orifice of the ventilation hole on the outer wall surface. A grain blocking and air guiding member is arranged at the orifice of the ventilation hole on the inner wall surface. A fan is arranged in the inner cavity of the ventilation hole. It is characterized in that: The internal and external circulation ventilation device further includes an air flow up-and-down circulation channel, the top opening of the air flow up-and-down circulation channel is located above the grain storage surface in the grain depot, and the bottom opening of the air flow up-and-down circulation channel is located on the pore wall of the ventilation hole.
2. The grain depot internal and external circulation ventilation device according to claim 1, characterized in that: The internal and external circulation ventilation device for the grain depot further includes a ground trough located on the ground of the grain depot. A baffle plate is installed on the ground trough and the ground trough cover. The baffle plate is provided with ventilation holes that grains cannot pass through. The baffle air guiding member is a box-type structure with a ventilation cavity. One side of the ventilation cavity is communicated with the ventilation hole, and the other side is communicated with the ground trough.
3. The grain depot internal and external circulation ventilation device according to claim 1, characterized in that: The air flow up-and-down circulation channel includes an air pipeline installed on the wall surface of the warehouse wall and an air through-hole provided on the wall. An opening is provided on the top side of the air pipeline as the top opening of the air flow up-and-down circulation channel. One end opening of the air through-hole is connected to the bottom opening of the air pipeline, and the other end opening of the air through-hole is used as the bottom opening of the air flow up-and-down circulation channel and is located on the pore wall of the ventilation hole.
4. The grain depot internal and external circulation ventilation device according to claim 1, wherein: The air flow up-and-down circulation channel is an air circulation through-hole provided in the wall. The top opening of the air circulation through-hole is used as the top opening of the air flow up-and-down circulation channel and is located on the wall surface of the warehouse wall above the grain storage surface in the grain depot.
5. The grain depot internal and external circulation ventilation device according to claim 1, wherein: A sealing door is installed on the top opening of the air flow up-and-down circulation channel.
6. The grain depot internal and external circulation ventilation device according to claim 1, characterized in that: The ventilation hole is divided into two sections, and a partition door is installed between the two sections. The fan is installed in the section close to the inner wall surface, and the bottom outlet of the air flow up-and-down circulation channel is located on the pore wall of the section close to the outer wall surface.