Multifunctional air intake and exhaust device of small air film storage bag for grain storage

Abstract

The utility model discloses a multifunctional air intake and exhaust device of a small air film bin bag for grain storage, which relates to the technical field of grain storage air intake and exhaust and comprises a small air film bin bag body, a top cover group is arranged at the top end of the small air film bin bag body, and a side cover group is arranged on the side surface of the small air film bin bag body. The top cover set and the side cover set are used for conducting multifunctional air intake and exhaust on stored grains. According to the utility model, through the top cover group and the side cover group, the top end and the side surface of the small air film storage bag body are respectively provided with a special air inlet and exhaust port, so that the overall air tightness after the small air film storage bag is opened is ensured, and the air inlet and exhaust port is ensured. And through the design of the special air inlet and exhaust ports, air flow can be more accurately controlled, and unnecessary air leakage is avoided. And air intake and exhaust operation is performed through the special opening, so that interference on other parts of the bin bag can be reduced, and the overall air tightness of the bin bag is kept.

Description

Technical Field

[0001] This utility model relates to the field of grain storage air intake and exhaust technology, and in particular to a multifunctional air intake and exhaust device for a small air-film storage bag for grain storage. Background Technology

[0002] Grain storage ventilation technology is a crucial element in ensuring the safety and quality stability of stored grain. It primarily involves controlling airflow inside and outside the grain silo to regulate temperature, humidity, and gas composition, thereby creating favorable environmental conditions for grain storage. With advancements in technology and continuous development in grain storage techniques, this technology is constantly being innovated and improved.

[0003] Existing grain storage ventilation systems primarily utilize natural and mechanical ventilation technologies. Natural ventilation typically relies on openings such as doors and windows for air exchange, which may not be completely sealed when closed, allowing outside air and moisture to easily intrude into the grain silo. Mechanical ventilation, on the other hand, consumes electricity and requires regular maintenance, increasing storage costs. Furthermore, equipment malfunctions or improper maintenance can lead to poor ventilation or airtightness.

[0004] To address the issue of poor airtightness in existing grain ventilation processes, the current large-scale grain silos will be abandoned in favor of mobile "small air-supported membrane silos" designed according to national research plans. These mobile "small air-supported membrane silos," often simply referred to as small air-supported membrane bags, are typically made of high-strength, weather-resistant membrane materials, providing excellent airtightness. This effectively isolates harmful factors such as moisture and oxygen from the external environment, preventing grain from becoming damp and oxidizing. Small air-supported membrane bags can be quickly assembled and disassembled as needed, facilitating transfer between different locations. Furthermore, dedicated air inlets and outlets are located at the top and left side of the small air-supported membrane bag, ensuring overall airtightness when opened and guaranteeing proper ventilation. The dedicated inlet and outlet design allows for more precise control of airflow, preventing unnecessary air leakage. Moreover, ventilation through these dedicated outlets minimizes interference with other parts of the bag, maintaining its overall airtightness.

[0005] However, during the storage of grain in small air-supported membrane bags, the grain may undergo respiration, consuming oxygen and producing carbon dioxide. Furthermore, the air entering the storage chamber may also introduce moisture. High concentrations of carbon dioxide can inhibit the respiration of the grain, but long-term accumulation can lead to a decline or even loss of the grain's viability, ultimately resulting in a decrease in grain quality. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a multi-functional air intake and exhaust device for small air-film storage bags for grain storage, which solves the problem of poor air tightness in the existing technology for grain intake and exhaust.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-functional air intake and exhaust device for a small air-supported membrane storage bag for grain storage includes a small air-supported membrane storage bag body, a top cover assembly at the top of the small air-supported membrane storage bag body, and a side cover assembly on the side of the small air-supported membrane storage bag body. The top cover assembly and the side cover assembly are used for multi-functional air intake and exhaust of the stored grain. Through the design of the top cover assembly and the side cover assembly, the air intake and exhaust volume of the grain storage environment can be more precisely controlled, thereby achieving fine adjustment of parameters such as temperature and humidity inside the grain silo.

[0009] As a further improvement of this utility model, the top cover assembly includes a top cover a, a middle connecting cover b, and a connecting bag c, and the side cover assembly includes a connecting bag d and a side cover e. Both the top cover assembly and the side cover assembly adopt a modular design, which facilitates installation, disassembly, and maintenance. The various components are connected by connecting bags, which ensures the integrity of the structure and allows for flexible adjustments according to actual conditions.

[0010] As a further improvement of this utility model, the top cover a is provided with a circular sealing surface with a diameter of 23-27 cm. The thread of the circular sealing surface is an external thread with a diameter of 18-22 cm and a height of 8-12 cm. A gasket is provided on the inner side of the circular sealing surface near the small air film storage bag body. An internal thread body is fixedly provided on the side of the gasket away from the circular sealing surface, inside the external thread. The connection method between the external thread and the internal thread body makes the installation and removal of the top cover a very convenient. The operator only needs to use appropriate tools to rotate the top cover a to easily complete the installation or removal work.

[0011] As a further improvement of this utility model, the intermediate connecting cover b is provided with an annular opening near the top cover a. The diameter of the annular opening is 13-17 cm. A temperature and humidity sensor and a gas concentration detection rod are inserted into the inner side of the annular opening. The connection points between the temperature and humidity sensor, the gas concentration detection rod and the intermediate connecting cover b are all sealed with an annular sealing gasket. By inserting a temperature and humidity sensor into the inner side of the annular opening, changes in temperature and humidity in the grain storage environment can be monitored in real time. This is crucial for ensuring suitable grain storage conditions and preventing grain damage due to improper temperature and humidity.

[0012] As a further improvement of this utility model, the side of the intermediate connecting cover b is provided with an external thread of 8-12 cm in height. An air inlet hole with a diameter of 6-10 cm is provided inside the external thread. A ball valve is fixedly connected to the side of the gas concentration detection rod, and an air pipe with a diameter of 6-10 cm is fixedly connected to the gas concentration detection rod near the ball valve. The gas concentration detection rod is connected to the air inlet hole via the ball valve and the air pipe, enabling real-time monitoring of the gas concentration in the grain storage environment. When the gas concentration exceeds a preset value, the gas flow rate can be controlled by adjusting the opening of the ball valve, thereby achieving precise regulation of the gas concentration in the grain storage environment.

[0013] As a further improvement of this utility model, the connecting bag c includes an inner thread splice bag and an inner thread body. The connecting bag c is welded to the upper part of the small air film storage bag body. The connecting bag c is used to fix the intermediate connecting cover b. The connecting bag c includes a bottom inner thread splice bag and an inner thread body. As a module of the air intake and exhaust device, the connecting bag c is designed for easy installation and disassembly. When it is necessary to replace or maintain the intermediate connecting cover b, simply loosen the engagement between the inner thread body and the external thread on the connecting bag c to easily remove the intermediate connecting cover b.

[0014] As a further improvement of this utility model, the connecting bag d is welded to the surface of the small air-film storage bag body. The diameter of the inner threaded screw of the connecting bag d is 18-22 cm, and the height of the inner threaded screw is 8-12 cm. A 40-mesh steel wire mesh is provided on the side of the connecting bag d. The structure of the side cover e is similar to that of the top cover a. An air pipe with a ball valve at the outer end is provided inside the side cover e. A gas concentration detection rod and a temperature and humidity meter rod are also provided inside the side cover e. A sealing ring is provided at the connection between the connecting bag d and the side cover e to ensure a leak-proof seal after connection. An exhaust hole is provided inside the inner threaded screw. The gas concentration detection rod and temperature and humidity meter rod inside the side cover e can monitor the temperature, humidity and gas concentration of the grain storage environment in real time. When these parameters exceed the preset values, the manager can control the gas inflow and outflow by adjusting the opening of the ball valve, thereby achieving precise adjustment of the grain storage environment and ensuring the safety and stability of grain storage.

[0015] As a further improvement of this utility model, the gas concentration detection rod is made of stainless steel and includes a gas detector used to identify and measure the concentration of various gases in the air. The stainless steel gas concentration detection rod has excellent corrosion resistance and high-temperature resistance, enabling it to maintain stable performance in the complex and variable environment of grain storage silos.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] 1. The small air-supported film storage bag features dedicated inlet and outlet ports on its top and side, respectively, via top and side cover assemblies. This ensures the overall airtightness of the bag after opening and guarantees the proper functioning of the inlet and outlet ports. The dedicated ports allow for more precise control of airflow, preventing unnecessary air leakage. Furthermore, using these dedicated ports minimizes interference with other parts of the bag, maintaining its overall airtightness. The dedicated ports also allow for more precise control of the airflow volume, preventing over- or under-ventilation. The opening degree and ventilation time of the ports can be flexibly adjusted according to the specific needs of the grain storage environment. Precise control of the airflow volume maintains the storage environment within a suitable temperature and humidity range, preventing damage to the grain due to excessive dryness or moisture. The dedicated ports also facilitate cleaning and maintenance, reducing ventilation problems caused by blockages or damage. Regular inspection and maintenance of the ports ensure long-term stable operation.

[0018] 2. By installing temperature and humidity sensors and gas concentration detection rods inside the top cover assembly, precise measurements of carbon dioxide concentration and temperature within the small air-supported film storage bag can be achieved. These sensors and rods allow for real-time monitoring of the temperature and carbon dioxide concentration within the storage bag, ensuring managers can constantly monitor the grain storage environment. Furthermore, temperature measurements allow managers to understand the storage environment's temperature conditions and make adjustments as needed. Suitable temperatures help maintain grain quality and extend shelf life. By collecting and analyzing data from the sensors and detection rods, managers can understand long-term trends in the storage environment and make adjustments accordingly. This helps in developing more scientific grain storage strategies and improving storage efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model.

[0020] Figure 2 This is a plan view of the top cover a in Embodiment 1 of this utility model.

[0021] Figure 3 This is a plan view of the intermediate connecting cover b in Embodiment 1 of this utility model.

[0022] Figure 4 This is a planar schematic diagram of the connecting bag c in Embodiment 1 of this utility model.

[0023] Figure 5 This is a planar schematic diagram of the connecting bag d in Embodiment 1 of this utility model.

[0024] Figure 6 This is a plan view of the side cover e in Embodiment 1 of this utility model.

[0025] In the diagram: 1. Small air-film storage bag body; 2. Top cover assembly; 3. Side cover assembly; 201. Circular sealing surface; 202. Gasket; 203. Inner thread body; 204. Annular opening; 205. Annular sealing gasket; 206. Gas concentration detection rod; 207. Air inlet; 208. Air tube; 209. Inner thread connecting cloth bag; 301. Exhaust port. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Example 1, as Figures 1-6 As shown, a multifunctional air intake and exhaust device for a small air-film storage bag for grain storage includes a small air-film storage bag body 1, a top cover a, a middle connecting cover b, a connecting bag c, a connecting bag d, and a side cover e.

[0029] This utility model is an insect-proof and rodent-proof airtight small air-film storage bag. This specification can store about 1 ton of wheat. The top and left side of the small air-film storage bag are dedicated inlet and outlet ports. In order to ensure the overall airtightness of the small air-film storage bag after opening, and to ensure the inlet and outlet ports, the top cover assembly 2 is made of PVC / PPR or metal. The top cover a, the middle connecting cover b, and the connecting bag c are designed as a three-layer threaded sealing cover with rubber gasket. The top cover (a) has a 25cm diameter circular sealing surface (201) on its left side, with an external thread diameter of 20cm and a height of 10cm. The middle connecting cover (b) is the intermediate connecting part, with a 15cm diameter annular opening on the left. A temperature and humidity sensor and a gas concentration detection rod (206) are inserted inside the annular opening. The gas concentration detection rod (206) has a ball valve on its left side, and an 8cm diameter circular gas pipe (208) with a ball valve on its left side. The connection points between the sensor, rod, and middle connecting cover (b) are sealed with sealing rings. The right side has a 10cm high external thread. The connecting bag (c) is welded or glued to the small air film storage bag and is used to connect to the middle connecting cover (b). After the top cover (a), middle connecting cover (b), and connecting bag (c) are connected, the entire cover assembly is sealed and leak-proof. Side cover assembly 3 is also made of PVC / PPR or metal. The connecting bag d is welded or glued to the small air-film storage bag, with internal threaded screws, a diameter of 20 cm, a height of 10 cm, and a 40-mesh steel wire mesh on the right side. The top cover e is similar to top cover a, but internally it only contains the air pipe 208 with a ball valve at the outer end, the gas concentration detection rod 206, and the temperature and humidity meter rod. Both connecting bag d and top cover e have sealing rings at the connection points, ensuring a leak-proof seal after connection. Thus, the top cover assembly 2 and side cover assembly 3 can achieve efficient sealing of the small air-film storage bag, avoiding unnecessary air leakage. Moreover, the dedicated port for air intake and exhaust operations can reduce interference with other parts of the storage bag and maintain the overall airtightness of the storage bag.

[0030] Then, by observing the temperature and humidity sensors and the gas concentration detection rod 206, abnormalities in carbon dioxide concentration and temperature can be quickly and clearly observed. Personnel can immediately observe abnormal data without waiting for or relying on other reports, thus enabling rapid action. This immediate response helps reduce potential losses caused by delays, and once an anomaly is detected, managers can immediately activate emergency plans, such as adjusting the ventilation system and regulating the temperature, to quickly restore the stability of the grain storage environment.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multifunctional air intake and exhaust device for a small air-film storage bag for grain storage, comprising a small air-film storage bag body (1), characterized in that, The top of the small air-film storage bag body (1) is provided with a top cover group (2), and the side of the small air-film storage bag body (1) is provided with a side cover group (3). The top cover group (2) and the side cover group (3) are used for multi-functional air intake and exhaust of the stored grain.

2. The multifunctional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 1, characterized in that, The top cover assembly (2) includes a top cover a, a middle connecting cover b and a connecting bag c, and the side cover assembly (3) includes a connecting bag d and a side cover e.

3. The multi-functional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 2, characterized in that, The top cover a is provided with a circular sealing surface (201) with a diameter of 23-27 cm. The thread of the circular sealing surface (201) is an external thread with a diameter of 18-22 cm and a height of 8-12 cm. A gasket (202) is provided on the inner side of the circular sealing surface (201) near the small air film storage bag body (1). An internal thread body (203) is fixed on the side of the gasket (202) away from the circular sealing surface (201) inside the external thread.

4. The multi-functional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 2, characterized in that, The intermediate connecting cover b is provided with an annular opening (204) near the top cover a. The diameter of the annular opening (204) is 13-17 cm. A temperature and humidity sensor and a gas concentration detection rod (206) are inserted into the inner side of the annular opening (204). The connection between the temperature and humidity sensor, the gas concentration detection rod (206) and the intermediate connecting cover b is sealed with an annular sealing gasket (205).

5. The multi-functional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 4, characterized in that, The side of the intermediate connecting cover b is provided with an external thread of 8-12 cm in height. An air inlet (207) is provided inside the external thread. The diameter of the air inlet (207) is 6-10 cm. A ball valve is fixedly connected to the side of the gas concentration detection rod (206). A gas pipe (208) is fixedly connected to the side of the gas concentration detection rod (206) near the ball valve. The diameter of the gas pipe (208) is 6-10 cm.

6. The multi-functional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 2, characterized in that, The connecting bag c includes an inner yarn splice bag (209) and an inner yarn body (203). The connecting bag c is welded to the upper part of the small air film storage bag body (1). The connecting bag c is used to fix the middle connecting cover b. The connecting bag c includes a bottom inner yarn splice bag (209) and an inner yarn body (203).

7. The multifunctional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 2, characterized in that, The connecting bag d is welded to the surface of the small air film storage bag body (1). The diameter of the inner thread screw of the connecting bag d is 18-22 cm and the height of the inner thread screw is 8-12 cm. The side of the connecting bag d is provided with a 40-mesh steel wire mesh. The structure of the side cover e is similar to that of the top cover a. The side cover e is provided with an air pipe (208) with a ball valve at the outer end. The side cover e is also provided with a gas concentration detection rod (206) and a temperature and humidity meter rod. The connection between the connecting bag d and the side cover e is provided with a sealing ring. The sealing ring is used to ensure that the connection is airtight. The inner thread screw is provided with an exhaust hole (301).

8. The multifunctional air intake and exhaust device for a small air-film storage bag for grain storage according to claim 7, characterized in that, The gas concentration detection rod (206) is made of stainless steel and includes a gas detector, which is used to identify and measure the concentration of various gases in the air.

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