A fresh air device for grain storage

Abstract

The utility model provides a fresh air device for a grain warehouse, comprising a warehouse, wherein a fresh air mechanism is arranged in the warehouse, grains are stored in the warehouse, and the fresh air mechanism can circulate and ventilate the warehouse; the fresh air mechanism comprises a lower ventilation component and an upper ventilation component, the output end of the lower ventilation component is connected with an upper circulation pipe, the upper circulation pipe is provided with a plurality of upper exhaust holes arranged at intervals along the extension direction of the upper circulation pipe, and the lower ventilation component discharges airflow into the warehouse through the upper exhaust holes; the output end of the upper ventilation component is connected with a lower circulation pipe; a refrigeration and air conditioning mode and an external ventilation mode are combined with each other, so that under the action of a temperature sensor, a control component and a temperature meter, the temperature in the warehouse can be controlled, so that when the temperature is too high, the grains can be cooled by the refrigeration and air conditioning, and when the temperature is suitable, the grains can be cooled by external ventilation.

Description

Technical Field

[0001] The utility model relates to the technical field of grain depot fresh air equipment, in particular to a grain depot fresh air device. Background Art

[0002] At present, most grain depots use air conditioning or external ventilation to cool the air inside the grain surface. However, long-term use of air conditioning can easily cause serious corrosion of the air conditioning evaporator and circuit parts by phosphine gas, and the cost is high. If only external ventilation is used, the excessively high temperature cannot play a cooling role. How to combine air conditioning and external ventilation to ensure the storage temperature of the grain depot and achieve the purpose of energy conservation and emission reduction is a technical problem that technicians in this field have been eager to solve but have not yet solved. Utility Model Content

[0003] The utility model aims to provide a grain depot fresh air device, aiming to solve the problem in the prior art of cooling the air in the grain surface by a single method of air conditioning or external ventilation, resulting in high operating costs and poor cooling effect.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the grain depot fresh air device comprises a warehouse, a fresh air mechanism is arranged in the warehouse, grain is stored in the warehouse, and the fresh air mechanism can circulate and ventilate the warehouse;

[0005] The fresh air mechanism comprises a lower ventilation component and an upper ventilation component, the output end of the lower ventilation component is connected to an upper circulation pipe, the upper circulation pipe is provided with a plurality of upper exhaust holes arranged at intervals along the extension direction of the upper circulation pipe, and the lower ventilation component discharges the airflow into the warehouse through the upper exhaust holes;

[0006] The output end of the upper ventilation assembly is connected to a lower circulation pipe, and a plurality of lower exhaust holes are arranged at intervals along the lower circulation pipe. The upper ventilation assembly allows the airflow to flow into the warehouse through the lower exhaust holes.

[0007] A temperature meter and a temperature sensor are installed on the inner wall of the warehouse in sequence. The temperature sensor is electrically connected to a control component, and the control component is electrically connected to the temperature meter. The control component is respectively controlled and connected to the lower ventilation component and the upper ventilation component. The temperature sensor controls the temperature in the warehouse through the control component.

[0008] Preferably, the lower ventilation assembly includes a refrigeration air conditioner installed at the upper end of the inner side wall of the warehouse and an exhaust fan installed at the lower end of the inner side wall of the warehouse;

[0009] The air outlet of the refrigeration air conditioner is fixedly provided with an air collecting pipe, the output end of the air collecting pipe is connected to a three-way joint, and the three-way joint is interconnected with the lower and upper circulation pipes. The refrigeration air conditioner discharges the airflow into the upper circulation pipe through the air collecting pipe, so that the airflow passing through the grain is discharged through the exhaust fan.

[0010] Preferably, the upper ventilation assembly includes an air blowing fan fixedly mounted on the lower end of the inner side wall of the warehouse and an exhaust fan fixedly mounted on the upper end of the inner side wall of the warehouse;

[0011] The output end of the air blowing fan is connected with a four-way joint, and the four-way joint is interconnected with the lower-level circulation pipe to discharge the airflow passing through the grain from the exhaust fan.

[0012] Preferably, the output end of the control component is respectively connected to the refrigeration air conditioner and the exhaust fan control to realize the control of the opening and closing of the refrigeration air conditioner and the exhaust fan.

[0013] Preferably, the output end of the control component is respectively connected to the air blowing fan and the exhaust fan for controlling the start and stop of the air blowing fan and the exhaust fan.

[0014] Preferably, a plurality of support frames are fixedly provided on the inner wall of the warehouse, and the upper circulation pipe is inserted into the support frame so as to support the upper circulation pipe through the support frame.

[0015] Preferably, a box body is fixedly provided on the inner bottom wall of the warehouse, the four-way joint and the air blowing fan are both located in the box body, and an external pipe is connected to the side of the box body close to the warehouse;

[0016] A protective cover is fixed on the outer surface of the box body, and the protective cover is a semicircular columnar structure, and the notch of the protective cover is directed toward the inner bottom wall of the warehouse;

[0017] The protective cover cooperates with the inner bottom wall of the warehouse to form a placement hole for the lower-level circulation pipe to pass through.

[0018] Preferably, one of the interfaces of the four-way joint is connected to a vertically arranged vertical pipe, the vertical pipe is provided with a plurality of first exhaust holes spaced apart from each other vertically, and the box body is provided with a circular hole for the first exhaust holes to pass through.

[0019] The beneficial effects are: 1. The refrigeration and air-conditioning method and the external ventilation method are combined with each other, so that the temperature in the warehouse can be controlled under the action of the temperature sensor, control component and temperature meter. When the temperature is too high, the grain can be cooled by refrigeration and air-conditioning, and when the temperature is suitable, the grain can be cooled by external ventilation.

[0020] 2. Through the setting of the lower circulation pipe and the upper circulation pipe, the airflow can be transported to different positions so as to better cool the warehouse.

[0021] 3. The mutual switching between refrigeration and air conditioning mode and external ventilation mode enables use at different stages, which can save emissions and improve green environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure in a specific embodiment of the utility model;

[0023] Figure 2 In the specific embodiment of the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] Figure 3 It is a structural schematic diagram of a partial cross-section of a warehouse in a specific embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a partial cross-section of a box body in a specific embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the shape of the protective cover in a specific embodiment of the utility model.

[0027] In the figure: 1. warehouse; 2. lower ventilation assembly; 201. refrigeration air conditioner; 202. exhaust fan; 3. grain; 401. blowing fan; 402. exhaust fan; 5. upper circulation pipe; 6. upper exhaust hole; 7. lower circulation pipe; 8. lower exhaust hole; 9. thermometer; 10. temperature sensor; 11. air collecting pipe; 12. support frame; 13. protective cover; 14. three-way joint; 15. box; 17. vertical pipe; 18. first exhaust hole. DETAILED DESCRIPTION

[0028] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0029] like Figure 1-Figure 5 As shown, a grain warehouse fresh air device of the utility model includes a warehouse 1, and a fresh air mechanism is arranged in the warehouse 1, which can cool down the warehouse 1 so that the warehouse 1 maintains a ventilated state, and the mutual switching of the refrigeration air conditioning 201 mode and the external ventilation mode can be used in different stages, which can save emissions and improve the green environmental protection effect. Grain 3 is stored in the warehouse 1, and the fresh air mechanism can circulate and ventilate the warehouse 1. The fresh air mechanism can improve the grain storage performance in the warehouse 1, and can also prevent the grain 3 from moisture, mold and insect pests, thereby extending the shelf life of the grain 3.

[0030] The fresh air mechanism includes a lower ventilation component 2 and an upper ventilation component.

[0031] In this embodiment, in order to facilitate cooling of the warehouse 1 by means of refrigeration air conditioning 201, an upper circulation pipe 5 is connected to the output end of the lower ventilation component 2. When the lower ventilation component 2 is started, the cold air flow can be transported to the upper circulation pipe 5. The upper circulation pipe 5 is provided with a plurality of upper exhaust holes 6 arranged at intervals along the extension direction of the upper circulation pipe 5. The lower ventilation component 2 discharges the airflow into the warehouse 1 through the upper exhaust holes 6, and the cold air flow transported to the upper circulation pipe 5 will be discharged into the warehouse 1 through the upper exhaust holes 6, so as to cool the grain 3.

[0032] The lower ventilation component 2 includes a refrigeration air conditioner 201 installed at the upper end of the inner wall of the warehouse 1 and an exhaust fan 202 installed at the lower end of the inner wall of the warehouse 1. The refrigeration air conditioner 201 can discharge the cold air flow into the warehouse 1, and the exhaust fan 202 can draw the air flow in the warehouse 1 out of the warehouse 1 to form a trend of air flow flowing from top to bottom.

[0033] The air outlet of the refrigeration air conditioner 201 is fixedly provided with an air collecting pipe 11, and a booster fan is arranged in the air collecting pipe 11. Under the action of the booster fan, the cold air flow discharged from the refrigeration air conditioner 201 can be strengthened. The output end of the air collecting pipe 11 is connected to a three-way joint 14, and the three-way joint 14 is interconnected with the upper circulation pipe 5. The refrigeration air conditioner 201 discharges the air flow into the upper circulation pipe 5 through the air collecting pipe 11, and the air collecting pipe 11 can flow the cold air flow into the upper circulation pipe 5 through the three-way joint 14, so that the air flow passing through the grain 3 is discharged through the exhaust fan 202, and the cold air flow in the upper circulation pipe 5 is discharged into the warehouse 1 through the upper exhaust hole 6, and then the cold air flow passes through the grain 3 and is transported to the exhaust fan 202 so as to be discharged under the action of the exhaust fan 202.

[0034] Specifically, a plurality of support frames 12 are fixedly provided on the inner wall of the warehouse 1, and the upper circulation pipe 5 is inserted on the support frames 12 so as to support the upper circulation pipe 5 through the support frames 12. The support frames 12 can support the upper circulation pipe 5 so that the upper circulation pipe 5 can tilt and fall.

[0035] In order to facilitate cooling down the warehouse 1 by external ventilation, in the present embodiment, a lower-level circulation pipe 7 is connected to the output end of the upper ventilation component. After the upper ventilation component is started, the external airflow can be sucked into the lower-level circulation pipe 7. The lower-level circulation pipe 7 is provided with a plurality of lower-level exhaust holes 8 arranged at intervals along the lower-level circulation pipe 7. The upper ventilation component directs the airflow into the warehouse 1 through the lower-level exhaust holes 8, and the airflow sucked into the lower-level circulation pipe 7 is discharged into the warehouse 1 through the lower-level exhaust holes 8, thereby changing the temperature of the warehouse 1.

[0036] Specifically, the upper ventilation assembly includes an air blowing fan 401 fixedly installed at the lower end of the inner wall of the warehouse 1 and an exhaust fan 402 fixedly installed at the upper end of the inner wall of the warehouse 1. The air blowing fan 401 draws external airflow into the warehouse 1.

[0037] The output end of the air blowing fan 401 is connected to a four-way joint, and the four-way joint is interconnected with the lower circulation pipe 7 to discharge the airflow passing through the grain 3 from the exhaust fan 402, and then transport the airflow sucked into the warehouse 1 to the lower circulation pipe 7 through the four-way joint. At this time, a trend of the airflow flowing from bottom to top is formed.

[0038] In order to facilitate the adjustment of the temperature in the warehouse 1 so as to combine the refrigeration air conditioning 201 method and the external ventilation method, in this embodiment, a thermometer 9 and a temperature sensor 10 are installed on the inner wall of the warehouse 1 in sequence, and the temperature sensor 10 is electrically connected to a control component, and the control component is electrically connected to the thermometer 9, and the control component is respectively controlled and connected with the lower ventilation component 2 and the upper ventilation component. The temperature sensor 10 can control the temperature in the warehouse 1 through the control component, so that when the temperature in the warehouse 1 is too high, the refrigeration air conditioning 201 is used to cool the grain 3, and when the temperature is suitable, the grain 3 can be cooled by external ventilation.

[0039] Specifically, the output end of the control component is respectively connected to the refrigeration air conditioner 201 and the exhaust fan 202 to control the opening and closing of the refrigeration air conditioner 201 and the exhaust fan 202. When the temperature in the warehouse 1 is too high, the refrigeration air conditioner 201 and the exhaust fan 202 can be driven to start, so that the cold air flow can pass through the grain 3 and flow out from the exhaust fan 202, thereby achieving the effect of circulating and cooling the grain 3.

[0040] The output end of the control component is respectively connected to the blowing fan 401 and the exhaust fan 402 to control the start and stop of the blowing fan 401 and the exhaust fan 402. When the temperature in the warehouse 1 is suitable, the refrigeration air conditioner 201 and the exhaust fan 202 are stopped, and the blowing fan 401 and the exhaust fan 402 are started, so that the external air flow enters from the blowing fan 401, passes through the grain 3 and is discharged from the exhaust fan 402, so as to achieve the effect of cooling the external air flow and achieve the purpose of energy saving and emission reduction.

[0041] One of the interfaces of the four-way joint is connected to a vertically arranged vertical pipe 17, on which a plurality of first exhaust holes 18 spaced apart vertically are provided, and on the box body 15 a circular hole for the first exhaust holes 18 to pass through is provided. Under the action of the vertical pipe 17, the grains 3 at different heights can be exhausted and cooled.

[0042] A box body 15 is fixedly provided on the inner bottom wall of the warehouse 1, and the four-way joint and the air blowing fan 401 are both located inside the box body 15. An external pipe is connected to the side of the box body 15 close to the warehouse 1, and the external pipe can transport the external airflow into the box body 15, and then the airflow is sucked into the warehouse 1 through the air blowing fan 401.

[0043] A protective cover 13 is fixed on the outer surface of the box body 15. The protective cover 13 is a semicircular columnar structure, and the notch of the protective cover 13 faces the inner bottom wall of the warehouse 1. The protective cover 13 is provided with a plurality of through holes to enable ventilation, drying and heat dissipation.

[0044] The protective cover 13 cooperates with the inner bottom wall of the warehouse 1 to form a placement hole for the lower-level circulation pipe 7 to pass through, and the airflow discharged from the lower-level circulation pipe 7 can be transported to the grain 3 through the protective cover 13.

[0045] Working principle: During use, when the temperature in the warehouse 1 is too high, the refrigeration air conditioner 201 and the exhaust fan 202 can be driven to start. After starting, the cold air flow can be transported to the upper circulation pipe 5, and the cold air flow transported to the upper circulation pipe 5 will be discharged into the warehouse 1 through the upper exhaust hole 6, so as to cool the grain 3. The refrigeration air conditioner 201 can discharge the cold air flow into the warehouse 1, and the exhaust fan 202 can draw the air flow in the warehouse 1 out of the warehouse 1, so as to form a trend of air flow flowing from top to bottom.

[0046] When the temperature in the warehouse 1 is suitable, the refrigeration air conditioner 201 and the exhaust fan 202 are stopped, and the blowing fan 401 and the exhaust fan 402 are started. After the upper ventilation component is started, the external airflow can be sucked into the lower circulation pipe 7, and the airflow sucked into the lower circulation pipe 7 will be discharged into the warehouse 1 through the lower exhaust hole 8, so that the temperature of the warehouse 1 changes, and then the airflow sucked into the warehouse 1 is transported to the lower circulation pipe 7 through the four-way joint. At this time, a trend of airflow flowing from bottom to top is formed, and the airflow passing through the grain 3 is discharged from the exhaust fan 402.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A grain depot fresh air device, characterized in that: It comprises a warehouse (1), wherein a fresh air mechanism is provided in the warehouse (1), wherein grain (3) is stored in the warehouse (1), and the fresh air mechanism is capable of circulating ventilation in the warehouse (1); The fresh air mechanism comprises a lower ventilation component (2) and an upper ventilation component, the output end of the lower ventilation component (2) is connected to an upper circulation pipe (5), the upper circulation pipe (5) is provided with a plurality of upper exhaust holes (6) arranged at intervals along the extension direction of the upper circulation pipe (5), and the lower ventilation component (2) discharges the airflow into the warehouse (1) through the upper exhaust holes (6); The output end of the upper ventilation assembly is connected to a lower circulation pipe (7), and the lower circulation pipe (7) is provided with a plurality of lower exhaust holes (8) arranged at intervals along the lower circulation pipe (7). The upper ventilation assembly allows airflow to flow into the warehouse (1) through the lower exhaust holes (8); A temperature meter (9) and a temperature sensor (10) are installed on the inner wall of the warehouse (1) in sequence. The temperature sensor (10) is electrically connected to a control component. The control component is electrically connected to the temperature meter (9). The control component is respectively connected to the lower ventilation component (2) and the upper ventilation component for control. The temperature sensor (10) controls the temperature in the warehouse (1) through the control component.

2. A grain depot fresh air device according to claim 1, characterized in that: The lower ventilation assembly (2) comprises a refrigeration air conditioner (201) installed at the upper end of the inner wall of the warehouse (1) and an exhaust fan (202) installed at the lower end of the inner wall of the warehouse (1); The air outlet of the refrigeration and air conditioning (201) is fixedly provided with an air collecting pipe (11), the output end of the air collecting pipe (11) is connected to a three-way joint (14), and the three-way joint (14) is interconnected with the lower and upper circulation pipes (5). The refrigeration and air conditioning (201) discharges the airflow through the air collecting pipe (11) into the upper circulation pipe (5), so that the airflow passing through the grain (3) is discharged through the exhaust fan (202).

3. A grain depot fresh air device according to claim 1, characterized in that: The upper ventilation assembly comprises an air blowing fan (401) fixedly mounted at the lower end of the inner wall of the warehouse (1) and an exhaust fan (402) fixedly mounted at the upper end of the inner wall of the warehouse (1); The output end of the air blowing fan (401) is connected to a four-way joint, and the four-way joint is interconnected with the lower-level circulation pipe (7) so as to discharge the airflow passing through the grain (3) from the exhaust fan (402).

4. A grain depot fresh air device according to claim 2, characterized in that: The output end of the control component is respectively connected to the refrigeration air conditioner (201) and the exhaust fan (202) for controlling the opening and closing of the refrigeration air conditioner (201) and the exhaust fan (202).

5. A grain depot fresh air device according to claim 3, characterized in that: The output end of the control component is respectively connected to the air blowing fan (401) and the exhaust fan (402) for controlling the start and stop of the air blowing fan (401) and the exhaust fan (402).

6. A grain depot fresh air device according to any one of claims 1, 2 and 4, characterized in that: A plurality of support frames (12) are fixedly provided on the inner wall of the warehouse (1), and the upper circulation pipe (5) is inserted into the support frame (12) so as to support the upper circulation pipe (5) through the support frame (12).

7. A grain depot fresh air device according to claim 5, characterized in that: A box body (15) is fixedly provided on the inner bottom wall of the warehouse (1), the four-way joint and the air blowing fan (401) are both located in the box body (15), and an external pipe is connected to a side of the box body (15) close to the warehouse (1); A protective cover (13) is fixed on the outer surface of the box body (15); the protective cover (13) is a semicircular columnar structure, and the notch of the protective cover (13) faces the inner bottom wall of the warehouse (1); The protective cover (13) cooperates with the inner bottom wall of the warehouse (1) to form a placement hole for the lower-level circulation pipe (7) to pass through.

8. A grain depot fresh air device according to claim 7, characterized in that: One of the interfaces of the four-way joint is connected to a vertically arranged vertical pipe (17), the vertical pipe (17) is provided with a plurality of first exhaust holes (18) arranged at intervals up and down, and the box body (15) is provided with a circular hole for the first exhaust holes (18) to pass through.

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