Large squat silo functional lung type pressure intensity automatic adjusting device and mounting structure thereof
Through the autonomous adjustment device of high-pressure resistant corrugated pipe and pipe frame structure, the problem of excessive pressure difference inside and outside the large shallow round warehouse is solved, and the balance and stability of the pressure inside and outside the warehouse is achieved, ensuring the airtightness of the grain storage environment and the quality of the grain storage.
Patent Information
- Application Number
- CN202421902843.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The pressure difference inside and outside the warehouse of a large shallow round warehouse changes too much, affecting gas and temperature exchange, resulting in poor airtightness and being unfavorable for grain storage.
The high-pressure resistant corrugated pipe and pipe frame structure is adopted, and the internal and external pressure of the chamber is adjusted through a one-way exhaust valve and a one-way intake valve, and the independent adjustment is achieved by combining a high-pressure gas source. The high-pressure resistant corrugated pipe can be retracted to balance the pressure.
Effectively balance the pressure inside and outside the warehouse, reduce gas and temperature exchange, ensure stable grain storage environment, and easy installation of the device and no space in the warehouse.
Smart Images
Figure CN223053496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain storage, and particularly relates to a large shallow round bin functional lung type pressure independent regulating device for balancing and regulating the pressure inside a large shallow round bin and an installation structure of the device. Background Art
[0002] The airtightness of a granary is directly related to the implementation of the controlled atmosphere grain storage technology, phosphine fumigation for pest control, and temperature-controlled grain storage technology in a shallow round bin. However, the airtightness of a granary has two sides. On the one hand, poor airtightness will lead to a large amount of heat and moisture exchange between the granary and the external environment, affecting the local temperature of the grain pile and the moisture content of the grain. If not dealt with in time, it will lead to heat generation and mildew of the grain pile. On the other hand, good airtightness of the granary will cause the pressure inside the highly airtight granary to be more affected by the external temperature. The change in the pressure inside the granary will intensify the gas and temperature exchange between the inside and outside of the granary, which is not conducive to the airtight storage of grain. For a shallow round bin with a half-life between 600 - 900 s, the pressure inside the bin fluctuates by ±70 Pa under the influence of the external temperature, as reported in the academic paper "Ye Haijun, Li Songwei, Wang Xiaobo, et al. Research on the Temperature and Pressure Changes inside a Static Airtight Shallow Round Bin [J]. Grain Processing, 2020, 45(01): 65 - 67." Therefore, it is necessary to adjust the pressure inside the bin to balance the pressure inside and outside the bin, thereby avoiding the gas and temperature exchange caused by a large pressure difference between the inside and outside of the bin. Especially for large shallow round bins, due to their large bin capacity and good airtightness, the pressure difference caused by the temperature difference between the inside and outside of the bin will also be very large, and it is very necessary to carry out technical improvements. Summary of the Invention
[0003] The purpose of the utility model is to propose a large shallow round bin functional lung type pressure independent regulating device, which can effectively balance the pressure inside and outside the bin; and also propose an installation structure of the large shallow round bin functional lung type pressure independent regulating device, which is easy to install and can be retracted when not in use to reduce the occupation of the space inside the bin.
[0004] The purpose of the utility model can be realized by the following technical solutions:
[0005] Large shallow silo functional lung-type pressure self-regulating device, characterized in that: it includes a high-pressure resistant corrugated pipe and a pipe rack. One end of the high-pressure resistant corrugated pipe is a connection end, and the other end is closed as a closed end. A plurality of hanging parts are evenly connected to the outer side of the wall of the high-pressure resistant corrugated pipe; the pipe rack has a long guide rod and a plurality of connectors arranged on the long guide rod. The bottom of the connector is connected to the top of the hanging part one by one, so that the high-pressure resistant corrugated pipe is suspended on the long guide rod; among them, the connector near the connection end of the high-pressure resistant corrugated pipe is a fixed head, the fixed head is fixedly connected to the long guide rod, and other connectors are movable heads, the movable heads are movably connected to the long guide rod, realizing that the closed end of the high-pressure resistant corrugated pipe can be far away from or close to the connection end of the high-pressure resistant corrugated pipe, so that the high-pressure resistant corrugated pipe is arranged in a telescopic manner along the long guide rod.
[0006] Optimized solution, the long guide rod of the pipe rack is an arc-shaped rod structure.
[0007] Optimized solution, the long guide rod of the pipe rack has a guide groove arranged along its length direction, the top of the movable head is movably connected in the guide groove and can move along the guide groove; the top of the fixed head is fixedly connected in the guide groove.
[0008] Optimized solution, the connection end of the high-pressure resistant corrugated pipe is communicated with an air connection pipe, and the ends of the air connection pipe are respectively communicated with an exhaust pipe and an intake pipe. A one-way exhaust valve is arranged on the exhaust pipe, and a one-way intake valve is arranged on the intake pipe.
[0009] Optimized solution, the end of the intake pipe is connected to a high-pressure air source. Further, the high-pressure air source is a fan, and the air outlet end of the fan is communicated with the end of the intake pipe.
[0010] Installation structure of the large shallow silo functional lung-type pressure self-regulating device, which includes a silo body, characterized in that: it further includes the above-mentioned large shallow silo functional lung-type pressure self-regulating device. The high-pressure resistant corrugated pipe and the pipe rack of the large shallow silo functional lung-type pressure self-regulating device are arranged at the top inside the silo body, and the exhaust pipe and the intake pipe are arranged outside the silo body; the pipe rack is fixedly connected to the wall of the silo body, and the long guide rod of the pipe rack is horizontally arranged so that the high-pressure resistant corrugated pipe is telescopically suspended at the top inside the silo body, and the end of the air connection pipe passes through the wall or the top of the silo body and is communicated with the exhaust pipe and the intake pipe outside the silo body.
[0011] Optimized solution, the pipe rack further has a plurality of side rods evenly connected to the long guide rod, and the ends of the side rods are fixedly connected to the wall of the silo body to realize the fixed connection between the pipe rack and the wall of the silo body.
[0012] The utility model has the following substantial features and progress:
[0013] 1. The large shallow silo functional lung-type pressure self-regulating device of the present utility model uses a high-pressure resistant corrugated pipe that can contract or expand under a small pressure difference between the inside and outside of the pipe, and has a large volume change range. It can be compressed to a very small volume and expanded to a very large volume, which can efficiently balance the pressure inside and outside the silo, thereby avoiding excessive changes in the pressure difference between the inside and outside of the silo. Further, by opening and closing the one-way exhaust valve and the one-way intake valve, real-time intake and exhaust of the high-pressure resistant corrugated pipe are achieved, efficiently balancing the pressure difference between the inside and outside of the silo. And further, by injecting gas into the high-pressure resistant corrugated pipe through a high-pressure gas source, the intake efficiency of the high-pressure resistant corrugated pipe is improved to quickly balance the internal and external air pressures.
[0014] 2. The installation structure of the large shallow silo functional lung-type pressure self-regulating device of the present utility model is easy to install. It can be adaptively installed on the arc-shaped silo wall of a large shallow silo. When not in use, it can also be contracted without disassembly, reducing the occupation of space inside the silo and reducing the workload. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic structural diagram of the large shallow silo functional lung-type pressure self-regulating device of the present utility model.
[0016] Figure 2 It is a schematic diagram of the installation state of the large shallow silo functional lung-type pressure self-regulating device of the present utility model.
[0017] Figure 3 It is a schematic diagram of the expansion state of the large shallow silo functional lung-type pressure self-regulating device of the present utility model.
[0018] Figure 4 It is a schematic diagram of the contraction state of the large shallow silo functional lung-type pressure self-regulating device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described below with reference to the accompanying drawings.
[0020] Embodiment
[0021] Refer to Figures 1 to 4 , the large shallow silo functional lung-type pressure self-regulating device includes a high-pressure resistant corrugated pipe 1 and a pipe rack 2.
[0022] One end of the high-pressure resistant corrugated pipe 1 is a connection end 11, and the other end is a closed end 12. A plurality of hanging parts 10 are evenly connected to the outer side of the pipe wall of the high-pressure resistant corrugated pipe 1.
[0023] The pipe rack 2 has a long guide rod 21 and a plurality of connectors provided on the long guide rod 21. The bottom of the connector is connected to the top of the hanging part 10 one by one, so that the high-pressure resistant corrugated pipe 1 is suspended on the long guide rod 21.
[0024] Among them, the connector connected near the connection end 11 of the high-pressure resistant corrugated pipe 1 is the fixed head 22. The fixed head 22 is fixedly connected to the long guide rod 21, and the other connectors are movable heads 23. The movable head 23 is movably connected to the long guide rod 21, so that the closed end 12 of the high-pressure resistant corrugated pipe 1 can be far away from or close to the connection end 11 of the high-pressure resistant corrugated pipe 1, and the high-pressure resistant corrugated pipe 1 is arranged in a telescopic manner along the long guide rod 21.
[0025] In order to be suitable for being applied inside a large shallow silo, in this embodiment, the long guide rod 21 of the pipe support 2 adopts an arc-shaped rod structure.
[0026] In this embodiment, the long guide rod 21 of the pipe support 2 has a guide groove 20 arranged along its length direction. The top of the movable head 23 is movably connected in the guide groove 20 and can move along the guide groove 20; the top of the fixed head 22 is fixedly connected in the guide groove 20. The movable connection mode between the guide groove 20 and the movable head 23 can refer to the connection mode between a curtain rail and a hook installed on the curtain rail, so as to realize the movable installation of the movable head 23 and the long guide rod 21.
[0027] Of course, an installation structure in which the movable head 23 is directly movably sleeved on the long guide rod 21 through a hook or a ring (not shown in the figure) can also be adopted. This structure is simpler, but during installation, in order to ensure the moving range of the movable head 23, only the two ends of the long guide rod 21 can be fixedly connected inside the warehouse, which has the disadvantage of few connection points and is more suitable for relatively short long guide rods 21.
[0028] Further, as Figure 2 shown, in this embodiment, an air connection pipe 3 is communicated with the connection end 11 of the high-pressure resistant corrugated pipe 1. The ends of the air connection pipe 3 are respectively communicated with an exhaust pipe 31 and an intake pipe 32. A one-way exhaust valve 311 is arranged on the exhaust pipe 31, and a one-way intake valve 321 is arranged on the intake pipe 32. In the above structure, gas can be injected into the high-pressure resistant corrugated pipe 1 through the intake pipe 32, so that the high-pressure resistant corrugated pipe 1 is stretched and its volume expands, as Figure 3 shown; or the high-pressure resistant corrugated pipe 1 can discharge gas through the exhaust pipe 31, so that the high-pressure resistant corrugated pipe 1 shrinks and its volume decreases, as Figure 4 shown. In addition, the one-way intake valve 321 and the one-way exhaust valve 311 can adopt an automatic air valve structure with a set opening and closing pressure difference threshold, or an electrically controlled air valve structure.
[0029] Further, the end of the intake pipe 32 is connected to a high-pressure gas source. In this embodiment, the high-pressure gas source is specifically a blower 4, and the air outlet end of the blower 4 is communicated with the end of the intake pipe 32.
[0030] Specific reference is made to Figures 2 to 4, the installation structure of the large shallow silo functional lung type pressure independent regulating device of this embodiment includes a silo body 9 and the large shallow silo functional lung type pressure independent regulating device.
[0031] The high-pressure resistant bellows 1 and pipe rack 2 of the large shallow silo functional lung type pressure independent regulating device are arranged at the top inside the silo body 9, and the exhaust pipe 31 and intake pipe 32 are arranged outside the silo body 9.
[0032] The pipe rack 2 has multiple side rods 24 evenly connected to the long guide rod 21, and the ends of the side rods 24 are fixedly connected to the wall of the silo body 9, realizing the fixed connection between the pipe rack 2 and the wall of the silo body 9. The long guide rod 21 of the pipe rack 2 is horizontally arranged so that the high-pressure resistant bellows 1 can be telescopically suspended at the top inside the silo body 9, and the end of the connecting pipe 3 passes through the wall or the top of the silo body 9 and is connected to the exhaust pipe 31 and intake pipe 32 outside the silo body 9.
[0033] Taking the application in controlled atmosphere grain storage as an example, a pressure detector is preset inside the silo to detect the pressure P1 inside the silo, and a nitrogen concentration detector or an oxygen concentration detector is preset inside the silo to detect the nitrogen concentration inside the silo. When the grain storage in the granary is filled with nitrogen until the nitrogen concentration is above 98%, the nitrogen filling is stopped. When the nitrogen concentration is detected to decay to 98.0%, air is replenished. To maintain a good state inside the silo for the controlled atmosphere grain storage process, by applying the independent regulating device of this embodiment, the pressure P1 inside the silo is maintained as close as possible to the pressure P0 outside the silo. In this embodiment, the pressure difference between inside and outside the silo can fluctuate within ±50 Pa, that is, the regulation is P1 = P0 ± 50 Pa.
[0034] When the independent regulating device of this embodiment fills nitrogen into the granary, the fan 4 injects an appropriate amount of gas into the high-pressure resistant bellows 1 to make the high-pressure resistant bellows 1 in a partially extended state, as Figure 2 shown, and the injected gas is usually air. During the controlled atmosphere period, the one-way intake valve 321 and one-way exhaust valve 311 open a one-way flow channel according to the pressure difference change, so that the high-pressure resistant bellows 1 contracts or expands due to the pressure difference change between inside and outside the silo, and further maintains the pressure P1 inside the silo = P0 ± 50 Pa.
[0035] When the temperature inside the silo rises, the gas inside the silo heats up and the pressure P1 increases. When P1 > P0 + 50 Pa, the one-way exhaust valve 311 opens, and the gas is discharged along the exhaust pipe 31 by the one-way exhaust valve 311. By the contraction of the high-pressure resistant bellows 1, the volume decreases, achieving the effect of reducing the air pressure inside the silo. When the air pressure inside the silo decreases to P1 = P0 + 50 Pa, the one-way exhaust valve 311 closes, so as to keep a normal controlled atmosphere environment inside the silo.
[0036] When the temperature inside the silo decreases, the gas inside the silo cools down and the air pressure P1 decreases. When P1 < P0 - 50 Pa, the one-way intake valve 321 opens. At the same time, the fan 4 starts to inject gas into the high-pressure resistant corrugated pipe 1 along the intake pipe 32 through the one-way intake valve 321, thereby expanding the high-pressure resistant corrugated pipe 1 and increasing its volume, achieving the effect of pressurizing the inside of the silo. When the air pressure inside the silo rises to P1 = P0 - 50 Pa, the fan 4 and the one-way intake valve 321 are closed to keep a normal controlled atmosphere environment inside the silo.
Claims
1. Large shallow silo functional pulmonary pressure self-regulating device, characterized in that: It includes a high-pressure resistant corrugated pipe (1) and a pipe support (2). One end of the high-pressure resistant corrugated pipe (1) is a connection end (11), and the other end is closed as a closed end (12). A plurality of hanging parts (10) are evenly connected to the outer side of the wall of the high-pressure resistant corrugated pipe (1); the pipe support (2) has a long guide rod (21) and a plurality of connection heads arranged on the long guide rod (21). The bottom of the connection head is connected to the top of the hanging part (10) one by one, so that the high-pressure resistant corrugated pipe (1) is suspended on the long guide rod (21); among them, the connection head near the connection end (11) of the high-pressure resistant corrugated pipe (1) is a fixed head (22), the fixed head (22) is fixedly connected to the long guide rod (21), and the other connection heads are movable heads (23). The movable head (23) is movably connected to the long guide rod (21), so that the closed end (12) of the high-pressure resistant corrugated pipe (1) can be far away from or close to the connection end (11) of the high-pressure resistant corrugated pipe (1), and the high-pressure resistant corrugated pipe (1) is arranged in a telescopic manner along the long guide rod (21).
2. The large shallow silo functional lung type pressure autonomous regulation device according to claim 1, wherein: The long guide rod (21) of the pipe support (2) is an arc-shaped rod structure.
3. The large shallow silo functional lung-type pressure autonomous regulation device according to claim 1, characterized in that: The long guide rod (21) of the pipe support (2) has a guide groove (20) arranged along its length direction. The top of the movable head (23) is movably connected in the guide groove (20) and can move along the guide groove (20); the top of the fixed head (22) is fixedly connected in the guide groove (20).
4. The large shallow silo functional pneumatic pressure self-regulating device according to claim 1 or 2 or 3, characterized in that: The connection end (11) of the high-pressure resistant corrugated pipe (1) is communicated with an air connection pipe (3). The ends of the air connection pipe (3) are respectively communicated with an exhaust pipe (31) and an intake pipe (32). A one-way exhaust valve (311) is arranged on the exhaust pipe (31), and a one-way intake valve (321) is arranged on the intake pipe (32).
5. The large shallow silo functional lung type pressure independent regulating device according to claim 4, characterized in that: The end of the intake pipe (32) is connected to a high-pressure air source.
6. The large shallow silo functional lung-type pressure independent regulation device according to claim 5, characterized in that: The high-pressure air source is a fan (4), and the air outlet end of the fan (4) is communicated with the end of the intake pipe (32).
7. Installation structure of the automatic regulating device for the functional pneumatic pressure of a large shallow silo, which includes a silo body (9), and is characterized in that: It also includes the large-scale shallow silo functional lung-type pressure self-regulating device described in claim 4. The high-pressure resistant corrugated pipe (1) and the pipe support (2) of the large-scale shallow silo functional lung-type pressure self-regulating device are arranged at the top inside the silo body (9), and the exhaust pipe (31) and the intake pipe (32) are arranged outside the silo body (9); the pipe support (2) is fixedly connected to the wall of the silo body (9). The long guide rod (21) of the pipe support (2) is horizontally arranged so that the high-pressure resistant corrugated pipe (1) is telescopically suspended at the top inside the silo body (9), and the end of the air connection pipe (3) passes through the wall or the top of the silo body (9) and is communicated with the exhaust pipe (31) and the intake pipe (32) outside the silo body (9).
8. The installation structure of the large shallow silo functional lung type pressure independent regulation device according to claim 6, characterized in that: The pipe support (2) also has a plurality of side rods (24) evenly connected to the long guide rod (21). The ends of the side rods (24) are fixedly connected to the wall of the silo body (9), realizing the fixed connection between the pipe support (2) and the wall of the silo body (9).