Low-noise intelligent water retention and ventilation system for granary

Abstract

A low-noise intelligent water retention ventilation system for a granary comprises a fan pipe and a controller, an impeller with a motor is installed in the fan pipe, one end of the fan pipe is movably connected with a ventilation opening pipe in a butt joint mode or communicated with the side face of the ventilation opening pipe, and a fixing flange is arranged at one end of the ventilation opening pipe. An airtight cover II is installed at the other end of the ventilation opening pipe, and a humidity sensor is installed in the ventilation opening pipe. A silencing pipe is installed at the other end of the fan pipe in a butt joint mode through a flange plate, an airtight cover I is installed at the end, away from the fan pipe, of the silencing pipe, and a hoist I used for controlling opening and closing of the airtight cover I is installed on the silencing pipe; an atomizer is installed in the silencing pipe and connected with a water source through a water supply pipe and a water pump. The controller is connected with the water pump, the hoist I, the humidity sensor, the impeller with the motor and the atomizer through wires. The system is simple in structure and convenient to apply, the problem that ventilation of the grain depot disturbs residents can be solved, and water loss of stored grains can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of storage equipment, in particular to a low-noise intelligent water-preserving ventilation system for a granary. Background Art

[0002] In the field of grain storage in China, there are mainly flat warehouses, shallow silos, vertical silos, steel silos, etc. for long-term storage or turnover of grain. During the storage process of grains such as rice, wheat, and corn in small granaries, some measures need to be taken to avoid or reduce the occurrence of mildew, insect infestation, etc. in the grains. Keeping them at low temperature and dry and carrying out circulating fumigation operations inside the warehouse are important measures. In order to achieve the above purposes, ventilation operations are required. The ventilation operation is to press air into the particle gaps of the grains to perform multiple functions on the grains, such as cooling, dehumidification, chemical agent fumigation, conditioning, controlled atmosphere, removing residual toxins and odors. This requires the entire granary to be sealed (airtight) and maintained for a period of time, and at the same time, airtight ventilation openings need to be provided. When the ventilation inside the granary is not required, the ventilation openings are closed and sealed to keep the granary in a good airtight state. When the temperature outside the warehouse is lower than the temperature inside the warehouse and ventilation is required inside the granary, the ventilation openings are opened, and a mobile fan is externally connected to directly blow the outside air into the granary to ventilate and cool the grains with natural cold air; when the temperature outside the warehouse is higher than the temperature inside the warehouse, a grain cooler needs to be connected to blow cold air into the granary for cooling.

[0003] Through applied research, it is found that when using natural cold air to cool the grains by passing it through the ventilation openings, the low-humidity cold air passing through the grain pile will inevitably cause water loss in the grains, which is also the main loss of stored grains, especially in areas with dry climates; in addition, with the development of urbanization, the grain depots built in the suburbs have gradually become "city-center depots", and the noise of the mechanical ventilation in the grain depots exceeds the standard, often causing dissatisfaction and complaints from the surrounding residents. The current national standard for Class 2 sound environment functional areas (commercial and residential) requires that the noise level at the boundary of the grain depot during the day should not be higher than 60 dB(A), and at night should not be higher than 50 dB(A). However, the noise within 2 m of the currently used centrifugal fan is usually as high as 90 dB(A) - 105 dB(A), and the boundary noise usually also reaches 75 dB(A) - 85 dB(A). Moreover, for the existing ventilation openings, when there is no fan installed inside, an external fan needs to be connected during ventilation, which is troublesome to operate; when there is an impeller with a motor installed inside the ventilation opening and a grain cooler needs to be connected, the impeller with the motor blocks the cold air conveyed by the grain cooler, and the impeller with the motor needs to be removed or the grain cooler needs to be started simultaneously, increasing the labor intensity and energy consumption. And when the granary is fumigated, the motor of the fan is easily corroded by the fumigation gas inside the ventilation opening, and even easily causes a short circuit of the current and leads to a fire. Therefore, it is necessary to develop a low-noise water-preserving ventilation system with good ventilation effect, simple operation, which can solve the problem of ventilation disturbing the residents in the grain depot and reduce the water loss of stored grains. Summary of the Invention

[0004] The purpose of the present utility model is to provide a low-noise intelligent water-preserving ventilation system for grain bins. The structure of this low-noise intelligent water-preserving ventilation system for grain bins is simple. When ventilating with external natural wind, the airtight cover is opened, and the impeller with a motor inside the blower pipe is started for ventilation, avoiding the labor of moving the blower and installing the air duct. The atomizer inside the sound insulation pipe can be turned on as needed to increase the air humidity, reduce the moisture loss of stored grain, and the sound insulation pipe can reduce the ventilation noise; when grain cooling is required, the ventilation port pipe is connected to the grain cooler with a ventilation hose, and there is no need to remove the impeller with a motor, which is convenient to use; when not ventilating, the airtight cover is closed, and the airtightness is good.

[0005] The present utility model is implemented by adopting the following technical solutions:

[0006] A low-noise intelligent water-preserving ventilation system for grain bins, including a blower pipe and a controller. An impeller with a motor is installed inside the blower pipe, and the motor driving the impeller is configured with a fumigation-resistant motor. One end of the blower pipe is connected with a ventilation port pipe, and there are two forms of connection between the blower pipe and the ventilation port pipe. For the first form of connection between the blower pipe and the ventilation port pipe, one end of the blower pipe is hinged and installed with a ventilation port pipe through a hinge. One end of the ventilation port pipe is butted with the blower pipe, and the ventilation port pipe and the blower pipe are connected by a flange or locked and connected by a buckle III. When locked and connected by a buckle III, a buckle III for locking and connecting the blower pipe is installed on the ventilation port pipe. Preferably, the movable buckle of the buckle III is installed on the outer wall of the ventilation port pipe, and the fixed buckle of the buckle III is arranged on the outer circumference of the blower pipe. The other end of the ventilation port pipe is provided with a fixed flange for communicating with the ventilation duct inside the bin, and a humidity sensor is installed inside the ventilation port pipe; the other end of the blower pipe is butted with a sound insulation pipe. An airtight cover I is installed at the end of the sound insulation pipe far from the blower pipe. An opener I for controlling the opening and closing of the airtight cover I is installed on the sound insulation pipe. The opener I is preferably a hand-electric dual-purpose worm and gear type opener, which can also be called a hand-electric dual-purpose screw opener. The impeller with a motor and the hand-electric dual-purpose worm and gear type opener can be purchased and installed for use; an atomizer is installed inside the sound insulation pipe, and the atomizer is connected to a water source through a water supply pipe and a water pump; the controller is respectively connected to the water pump, the opener I, the humidity sensor, the impeller with a motor and the atomizer through wires. The controller is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump, the opener I, the impeller with a motor and the atomizer according to the set program.

[0007] The second form of connection between the fan pipe and the ventilation pipe is that the side of the fan pipe is closely connected to the ventilation pipe. An airtight cover II is installed at one end of the ventilation pipe, and a hoist II for controlling the opening and closing of the airtight cover II is installed on the ventilation pipe. The hoist II is preferably a hand-electric dual-purpose worm and worm gear hoist, which can also be called a hand-electric dual-purpose screw hoist. A fixed flange for communicating with the ventilation pipe in the bin is provided at the other end of the ventilation pipe, and a humidity sensor is installed in the ventilation pipe. The other end of the fan pipe is butt-connected with a silencing pipe through a flange. An airtight cover I is installed at the end of the silencing pipe far from the fan pipe, and a hoist I for controlling the opening and closing of the airtight cover I is installed on the silencing pipe. An atomizer is installed in the silencing pipe, and the atomizer is connected to a water source through a water supply pipe and a water pump. The controller is respectively connected to the water pump, the hoist I, the humidity sensor, the impeller with a motor, the atomizer and the hoist II through wires. The controller is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump, the hoist I, the impeller with a motor, the atomizer and the hoist II according to a set program.

[0008] The low-noise intelligent water-preserving ventilation system for grain bins can set the fan pipe and the ventilation pipe to a non-connected structure, which includes a fan pipe, a ventilation pipe and a gas distribution box. A motor-driven impeller is installed in the fan pipe. It is characterized in that: it further includes a controller. One end of the fan pipe and one end of the ventilation pipe are respectively connected to the gas distribution box. The fan pipe and the ventilation pipe are respectively fixed on the bin wall and connected to the gas distribution box of the bin. An airtight cover II is installed at the outer end of the ventilation pipe, and a hoist II for controlling the opening and closing of the airtight cover II is installed on the ventilation pipe. A humidity sensor is installed in the gas distribution box. The other end of the fan pipe is butted with a silencing pipe. An airtight cover I is installed at the end of the silencing pipe far from the fan pipe, and a hoist I for controlling the opening and closing of the airtight cover I is installed on the silencing pipe. An atomizer is installed in the silencing pipe, and the atomizer is connected to a water source through a water supply pipe and a water pump. The controller is respectively connected to the water pump, the hoist I, the humidity sensor, the impeller with a fan, the atomizer and the hoist II through wires. The controller is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump, the hoist I, the impeller with a fan, the atomizer and the hoist II according to a set program.

[0009] Further preferably: The silencing pipe adopts a structure with a large middle and small ends. The middle section adopts a large-diameter pipe barrel, which can reduce the wind speed, facilitate isolating and capturing water droplets in the air, and avoid unatomized water being transported into the grain bin.

[0010] Further preferably: A water droplet isolation plate and a drain port are arranged inside the outlet end of the middle section of the silencing pipe. The drain port is connected to a drain pipe, and the drain pipe adopts a U-shaped drain pipe.

[0011] Further preferably, the silencing pipe is formed by sealing and butting two pipe bodies through a butt flange. By removing the bolts on the butt flange, the pipe barrel can be divided into two sections, facilitating the maintenance and repair of the water droplet isolation plate and the atomizer inside the pipe barrel.

[0012] Further preferably, a buckle I for locking and connecting the airtight cover I is installed on the silencing pipe. The movable buckle of the buckle I is fixedly installed on the outer wall of the silencing pipe, and the fixed buckle of the buckle I is arranged on the outer periphery of the airtight cover I. Locking the buckle I can make the connection between the airtight cover I and the silencing pipe more firm.

[0013] Further preferably, an annular silencing orifice plate is fixed inside the silencing pipe, and sound-absorbing cotton is arranged between the silencing orifice plate and the pipe wall.

[0014] Further preferably, the other end of the blower pipe is detachably butted with the silencing pipe through a flange plate.

[0015] Further preferably, a buckle II for locking and connecting the airtight cover II is installed on the ventilation port pipe. The movable buckle of the buckle II is fixedly installed on the outer wall of the ventilation port pipe, and the fixed buckle of the buckle II is arranged on the outer periphery of the airtight cover II. The above-mentioned buckle I, buckle II and buckle III are buckles purchased on the market.

[0016] The low-noise intelligent water-preserving ventilation system of this granary has a simple structure. When ventilating with the external natural wind, open the airtight cover and start the impeller with a motor inside the blower pipe for ventilation, avoiding the labor of moving the blower and installing the air duct. The atomizer inside the silencing pipe can be started as needed to increase the air humidity and reduce the moisture loss of stored grain, and the silencing pipe can reduce the ventilation noise; when grain cooling is required, connect the ventilation port pipe and the grain cooler with a ventilation hose, without the need to remove the impeller with a motor, which is convenient to use; when not ventilating, close the airtight cover, and the airtightness is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the low-noise intelligent water-preserving ventilation system of the granary in Embodiment 1;

[0018] Figure 2 For Figure 1 the schematic diagram of A-A in

[0019] Figure 3 It is a schematic structural diagram of the low-noise intelligent water-preserving ventilation system of the granary in Embodiment 2;

[0020] Figure 4 It is a schematic structural diagram of the low-noise intelligent water-preserving ventilation system of the granary in Embodiment 3;

[0021] Figure 5 It is a schematic structural diagram of the low-noise intelligent water-preserving ventilation system of the granary in Embodiment 4;

[0022] Figure 6 It is a schematic structural diagram of the sound-absorbing pipe in Embodiment 4;

[0023] Figure 7 is Figure 6 a schematic internal installation structure diagram of the sound-absorbing pipe in

[0024] The names corresponding to the serial numbers in the figure are:

[0025] 1. Airtight cover Ⅰ; 2. Buckle Ⅰ; 3. Water supply pipe; 4. Water pump; 5. Water source; 6. Controller; 7. Buckle Ⅲ; 8. Vent pipe; 9. Fixed flange; 10. Hinge; 11. Fan pipe; 12. Flange; 13. Sound-absorbing pipe; 14. Hoist Ⅰ; 15. Humidity sensor; 16. Impeller with motor; 17. Sound-absorbing cotton; 18. Sound-absorbing orifice plate; 19. Atomizer; 20. Airtight cover Ⅱ; 21. Buckle Ⅱ; 22. Hoist Ⅱ; 23. Grain bin wall; 24. Gas distribution box; 25. Docking flange; 26. Drain pipe; 27. Drainage port; 28. Water droplet isolation plate. Specific implementation manners

[0026] For a clearer description of the present technology, the following further details the present technology in combination with the accompanying drawings and embodiments. Embodiment 1

[0027] A low-noise intelligent water-preserving ventilation system for a grain bin, including a fan pipe 11 and a controller 6. A motor-driven impeller 16 is installed in the fan pipe 11. One end of the fan pipe 11 is hingedly installed with a vent pipe 8 through a hinge 10. One end of the vent pipe 8 is docked with the fan pipe 11. A buckle Ⅲ 7 for locking and connecting the fan pipe 11 is installed on the vent pipe 8. The movable buckle of the buckle Ⅲ 7 is installed on the outer wall of the vent pipe 8, and the fixed buckle of the buckle Ⅲ 7 is arranged on the outer circumference of the fan pipe 11. The other end of the vent pipe 8 is provided with a fixed flange 9 for communicating with the ventilation duct in the bin, and a humidity sensor 15 is installed in the vent pipe 8; the other end of the fan pipe 11 is docked and installed with a sound-absorbing pipe 13 through a flange 12. An airtight cover Ⅰ 1 is installed at the end of the sound-absorbing pipe 13 far from the fan pipe 11, and a hoist Ⅰ 14 for controlling the opening and closing of the airtight cover Ⅰ 1 is installed on the sound-absorbing pipe 13; an atomizer 19 is installed in the sound-absorbing pipe 13, and the atomizer 19 is connected to a water source 5 through a water supply pipe 3 and a water pump 4; the controller 6 is respectively connected to the water pump 4, the hoist Ⅰ 14, the humidity sensor 15, the motor-driven impeller 16 and the atomizer 19 through wires. The controller 6 is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump 4, the hoist Ⅰ 14, the motor-driven impeller 16 and the atomizer 19 according to a set program.

[0028] A buckle Ⅰ2 for locking and connecting the airtight cover Ⅰ1 is installed on the muffler pipe 13. The movable buckle of the buckle Ⅰ2 is fixedly installed on the outer wall of the muffler pipe 13, and the fixed buckle of the buckle Ⅰ2 is arranged on the outer periphery of the airtight cover Ⅰ1.

[0029] A ring-shaped muffler orifice plate 18 is fixed inside the muffler pipe 13, and muffler cotton 17 is arranged between the muffler orifice plate 18 and the pipe wall.

[0030] When ventilation is not required, the buckle Ⅰ2 and the buckle Ⅲ7 are locked. The airtight cover Ⅰ1 seals the end of the muffler pipe 13; the ventilation port pipe 8 is closely docked with the fan pipe 11 to close the ventilation port. When natural ventilation from the outside is required, the buckle Ⅰ2 is loosened, the hoist Ⅰ14 is controlled to open the airtight cover Ⅰ1, and the impeller 16 with a motor is started to conduct ventilation. The atomizer 19 and the water pump 4 inside the muffler pipe 13 can be started as needed to increase the air humidity and reduce the moisture loss of stored grain; when connecting with a grain cooler for grain cooling, the buckle Ⅲ7 is loosened, the fan pipe 11 is separated from the ventilation port pipe 8 and not docked, and the air duct of the grain cooler is locked and docked with the ventilation port pipe 8 to conduct air supply from the grain cooler. Embodiment 2

[0031] A low-noise intelligent water-preserving ventilation system for a granary includes a fan pipe 11 and a controller 6. A motor-driven impeller 16 is installed inside the fan pipe 11. One end of the fan pipe 11 is hinged and installed with a ventilation port pipe 8 through a hinge 10. One end of the ventilation port pipe 8 is docked with the fan pipe 11. The ventilation port pipe 8 and the fan pipe 11 are connected by a flange. The other end of the ventilation port pipe 8 is provided with a fixed flange 9 for communicating with the ventilation duct inside the warehouse. A humidity sensor 15 is installed inside the ventilation port pipe 8; the other end of the fan pipe 11 is docked with a muffler pipe 13. An airtight cover Ⅰ1 is installed at the end of the muffler pipe 13 away from the fan pipe 11. A hoist Ⅰ14 for controlling the opening and closing of the airtight cover Ⅰ1 is installed on the muffler pipe 13; an atomizer 19 is installed inside the muffler pipe 13. The atomizer 19 is connected to a water source 5 through a water supply pipe 3 and a water pump 4; the controller 6 is respectively connected to the water pump 4, the hoist Ⅰ14, the humidity sensor 15, the motor-driven impeller 16 and the atomizer 19 through wires. The controller 6 is provided with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump 4, the hoist Ⅰ14, the motor-driven impeller 16 and the atomizer 19 according to a set program.

[0032] A buckle Ⅰ2 for locking and connecting the airtight cover Ⅰ1 is installed on the muffler pipe 13. The movable buckle of the buckle Ⅰ2 is fixedly installed on the outer wall of the muffler pipe 13, and the fixed buckle of the buckle Ⅰ2 is arranged on the outer periphery of the airtight cover Ⅰ1.

[0033] A ring-shaped muffler orifice plate 18 is fixed inside the muffler pipe 13, and muffler cotton 17 is arranged between the muffler orifice plate 18 and the pipe wall.

[0034] When ventilation is not required, lock the buckle Ⅰ2, and the airtight cover Ⅰ1 seals the end of the silencing pipe 13; the ventilation duct 8 is tightly butted with the fan duct 11 to close the ventilation opening. When natural ventilation from the outside is needed, loosen the buckle Ⅰ2, control the hoist Ⅰ14 to open the airtight cover Ⅰ1, and start the impeller 16 with a motor to conduct ventilation. According to the need, start the atomizer 19 and the water pump 4 in the silencing pipe 13 to increase the air humidity and reduce the moisture loss of stored grain. When connecting to a grain chiller for grain cooling, use flange bolts to separate the fan duct 11 from the ventilation duct 8 and not butt them, and lock and butt the air duct of the grain chiller with the ventilation duct 8 to conduct air supply from the grain chiller. Embodiment 3

[0035] A low-noise intelligent water-preserving ventilation system for a granary, including a fan duct 11 and a controller 6. A motor-driven impeller 16 is installed in the fan duct 11. One end of the fan duct 11 is connected to a ventilation duct 8, and the sides of the fan duct 11 and the ventilation duct 8 are tightly connected. An airtight cover Ⅱ20 is installed at one end of the ventilation duct 8, and a hoist Ⅱ22 for controlling the opening and closing of the airtight cover Ⅱ20 is installed on the ventilation duct 8. A fixed flange 9 for communicating with the ventilation duct in the granary is provided at the other end of the ventilation duct 8, and a humidity sensor 15 is installed in the ventilation duct 8. The other end of the fan duct 11 is butt-connected with a silencing pipe 13 through a flange 12. An airtight cover Ⅰ1 is installed at the end of the silencing pipe 13 away from the fan duct 11, and a hoist Ⅰ14 for controlling the opening and closing of the airtight cover Ⅰ1 is installed on the silencing pipe 13. An atomizer 19 is installed in the silencing pipe 13, and the atomizer 19 is connected to a water source 5 through a water supply pipe 3 and a water pump 4. The controller 6 is respectively connected to the water pump 4, the hoist Ⅰ14, the humidity sensor 15, the motor-driven impeller 16, the atomizer 19 and the hoist Ⅱ22 through wires. The controller 6 is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump 4, the hoist Ⅰ14, the motor, the atomizer 19 and the hoist Ⅱ22 according to a set program.

[0036] A buckle Ⅰ2 for locking and connecting the airtight cover Ⅰ1 is installed on the silencing pipe 13. The movable buckle of the buckle Ⅰ2 is fixedly installed on the outer wall of the silencing pipe 13, and the fixed buckle of the buckle Ⅰ2 is arranged on the outer periphery of the airtight cover Ⅰ1.

[0037] An annular silencing orifice plate 18 is fixed in the silencing pipe 13, and sound-absorbing cotton 17 is arranged between the silencing orifice plate 18 and the pipe wall.

[0038] A buckle Ⅱ21 for locking and connecting the airtight cover Ⅱ20 is installed on the ventilation duct 8. The movable buckle of the buckle Ⅱ21 is fixedly installed on the outer wall of the ventilation duct 8, and the fixed buckle of the buckle Ⅱ21 is arranged on the outer periphery of the airtight cover Ⅱ20.

[0039] When ventilation is not required, lock the fastening buckle Ⅰ2 and the buckle Ⅱ21, and the airtight cover Ⅰ1 seals the end of the sound insulation pipe 13; the ventilation pipe 8 is tightly butted with the airtight cover Ⅱ20 to close the ventilation opening. When natural ventilation from the outside is required, loosen the fastening buckle Ⅰ2, control the hoist Ⅰ14 to open the airtight cover Ⅰ1, and start the impeller 16 with a motor to conduct ventilation. According to the need, turn on the atomizer 19 and the water pump 4 in the sound insulation pipe 13 to increase the air humidity and reduce the moisture loss of stored grain; when connecting to a grain cooler for grain cooling, the airtight cover Ⅰ1 seals the end of the sound insulation pipe 13, loosen the buckle Ⅱ21, control the hoist Ⅱ22 to open the airtight cover Ⅱ20, and lock and connect the air duct of the grain cooler with the ventilation pipe 8 to conduct air supply from the grain cooler. Embodiment 4

[0040] A low-noise intelligent water-preserving ventilation system for a granary, comprising a fan pipe 11, a ventilation pipe 8 and a gas distribution box 24. A motor-driven impeller 16 is installed in the fan pipe 11. It is characterized in that: it further includes a controller 6. One end of the fan pipe 11 and one end of the ventilation pipe 8 are respectively connected to the gas distribution box 24; the fan pipe 11 and the ventilation pipe 8 are respectively fixed on the granary wall 23 and connected to the gas distribution box 24 of the granary. An airtight cover Ⅱ20 is installed at the outer end of the ventilation pipe 8, and a hoist Ⅱ22 for controlling the opening and closing of the airtight cover Ⅱ20 is installed on the ventilation pipe 8; a humidity sensor 15 is installed in the gas distribution box 24; the other end of the fan pipe 11 is butted with a sound insulation pipe 13, and an airtight cover Ⅰ1 is installed at the end of the sound insulation pipe 13 away from the fan pipe 11. A hoist Ⅰ14 for controlling the opening and closing of the airtight cover Ⅰ1 is installed on the sound insulation pipe 13; an atomizer 19 is installed in the sound insulation pipe 13, and the atomizer 19 is connected to a water source 5 through a water supply pipe 3 and a water pump 4; the controller 6 is respectively connected to the water pump 4, the hoist Ⅰ14, the humidity sensor 15, the impeller 16 with a fan, the atomizer 19 and the hoist Ⅱ22 through wires. The controller 6 is provided with an automatic control module and a manual control module, and the automatic control module can control the operation of the water pump 4, the hoist Ⅰ14, the impeller 16 with a fan, the atomizer 19 and the hoist Ⅱ22 according to a set program.

[0041] A fastening buckle Ⅰ2 for locking and connecting the airtight cover Ⅰ1 is installed on the sound insulation pipe 13.

[0042] An annular sound insulation hole plate 18 is fixed in the sound insulation pipe 13, and sound insulation cotton 17 is arranged between the sound insulation hole plate 18 and the pipe wall.

[0043] The other end of the fan pipe 11 and the sound insulation pipe 13 are detachably butted by a flange 12.

[0044] A fastening buckle Ⅱ21 for locking and connecting the airtight cover Ⅱ20 is installed on the ventilation pipe 8.

[0045] The sound silencing pipe 13 described above adopts a structure that is large in the middle and small at both ends. Inside the outlet end of the middle section of the sound silencing pipe 13, a water droplet isolation plate 28 and a drain port 27 are provided. The drain port 27 is connected to a drain pipe 26, and the drain pipe 26 adopts a U-shaped drain pipe.

[0046] The sound silencing pipe 13 described above is formed by sealing and docking two pipe bodies through a docking flange 25.

[0047] When ventilation is not required, lock the locking buckle I 2 and the buckle II 21, and the airtight cover I 1 seals the end of the sound silencing pipe 13; the ventilation port pipe 8 is closely docked with the airtight cover II 20 to close the ventilation port. When natural wind ventilation from the outside is required, loosen the buckle I 2, control the hoist I 14 to open the airtight cover I 1, and start the impeller 16 with a motor to conduct ventilation. According to the need, start the atomizer 19 and the water pump 4 inside the sound silencing pipe 13 to increase the air humidity and reduce the moisture loss of stored grain; when connecting to a grain cooler for grain cooling, the airtight cover I 1 seals the end of the sound silencing pipe 13, loosen the buckle II 21, control the hoist II 22 to open the airtight cover II 20, and lock and dock the air duct of the grain cooler with the ventilation port pipe 8 to conduct air supply from the grain cooler.

[0048] The low-noise intelligent water-preserving ventilation system for the granary of the present utility model collects data such as temperature and humidity inside and outside the granary, and through real-time calculation and comparison with the set target parameters, the controller 6 controls devices such as the water pump 4, the impeller 16 with a motor, and the atomizer 19, so that different working modes such as dehumidifying ventilation, water-preserving ventilation, and conditioning ventilation can be selected according to the working conditions. After testing, the noise of the ventilator is 70 - 85 dB(A), and the muffler reduces the noise by 20 - 25 dB(A). For the ventilators of boundary granaries, with the assistance of supporting sound insulation equipment, it can be achieved that the ventilation of stored grain in the entire reservoir area does not disturb the residents.

[0049] The above description is not a limitation of this application, and this application is not limited to the above examples. Any changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of this application shall fall within the protection scope of this application.

Claims

1. A low-noise intelligent water-retaining ventilation system for a granary, comprising a fan pipe (11), wherein an impeller (16) with a motor is installed in the fan pipe (11); the characteristics are: The invention also comprises a controller (6), one end of the fan pipe (11) is hingedly mounted with a vent pipe (8) via a hinge (10), one end of the vent pipe (8) is butted against the fan pipe (11), the vent pipe (8) and the fan pipe (11) are connected by a flange or locked by a buckle III (7), the other end of the vent pipe (8) is provided with a fixed flange (9) for communicating with a ventilation duct in the warehouse, a humidity sensor (15) is installed in the vent pipe (8); the other end of the fan pipe (11) is butted against a silencer The end of the silencer pipe (13) away from the fan pipe (11) is equipped with an airtight cover I (1), and the silencer pipe (13) is equipped with a hoist I (14) for controlling the opening and closing of the airtight cover I (1). An atomizer (19) is installed in the silencer pipe (13), and the atomizer (19) is connected to a water source (5) through a water supply pipe (3) and a water pump (4). The controller (6) is connected to the water pump (4), the hoist I (14), the humidity sensor (15), the impeller with a motor, and the atomizer (19) through wires.

2. A low-noise intelligent water-retaining ventilation system for a granary, comprising a fan pipe (11), wherein an impeller (16) with a motor is installed in the fan pipe (11); the characteristics are: The device further comprises a controller (6), wherein one end of the fan pipe (11) is connected to a vent pipe (8), the fan pipe (11) is in communication with a side of the vent pipe (8), one end of the vent pipe (8) is provided with an airtight cover II (20), the vent pipe (8) is provided with an opening and closing machine II (22) for controlling the opening and closing of the airtight cover II (20), the other end of the vent pipe (8) is provided with a fixing flange (9) for communicating with a ventilation duct in the warehouse, and a humidity sensor (15) is installed in the vent pipe (8); the other end of the fan pipe (11) is connected to a muffler pipe (13), and the muffler pipe (13) is provided with a humidity sensor (15). ) is installed at the end of the airtight cover I (1) away from the fan pipe (11), and a hoist I (14) for controlling the opening and closing of the airtight cover I (1) is installed on the silencer pipe (13); an atomizer (19) is installed in the silencer pipe (13), and the atomizer (19) is connected to the water source (5) through a water supply pipe (3) and a water pump (4); a controller (6) is connected to the water pump (4), the hoist I (14), a humidity sensor (15), an impeller (16) with a motor, the atomizer (19) and the hoist II (22) through wires, respectively, and the controller (6) is provided with an automatic control module and a manual control module.

3. A low-noise intelligent water-retaining ventilation system for a granary, comprising a fan pipe (11), a vent pipe (8) and a gas distribution box (24), wherein an impeller (16) with a motor is installed in the fan pipe (11); the characteristics are: The device also includes a controller (6); one end of the fan pipe (11) and one end of the vent pipe (8) are respectively connected to a gas distribution box (24); the fan pipe (11) and the vent pipe (8) are respectively fixed to a granary wall (23) and connected to the gas distribution box (24) of the granary; an airtight cover II (20) is installed at the outer end of the vent pipe (8); a hoist II (22) for controlling the opening and closing of the airtight cover II (20) is installed on the vent pipe (8); a humidity sensor (15) is installed in the gas distribution box (24); the other end of the fan pipe (11) is connected to a muffler pipe (13); the muffler pipe (13) An airtight cover I (1) is installed at the end of the airtight cover (13) away from the fan pipe (11), and a hoist I (14) for controlling the opening and closing of the airtight cover I (1) is installed on the silencer pipe (13); an atomizer (19) is installed in the silencer pipe (13), and the atomizer (19) is connected to the water source (5) through a water supply pipe (3) and a water pump (4); a controller (6) is connected to the water pump (4), the hoist I (14), a humidity sensor (15), an impeller with a fan (16), the atomizer (19) and the hoist II (22) through wires, respectively, and the controller (6) is provided with an automatic control module and a manual control module.

4. The low-noise intelligent water-retaining ventilation system for granaries according to any one of claims 1 to 3, characterized in that: The silencer pipe (13) is provided with a buckle I (2) for locking and connecting the airtight cover I (1).

5. The low-noise intelligent water-retaining ventilation system for granaries according to any one of claims 1 to 3, characterized in that: An annular sound-absorbing hole plate (18) is fixed inside the sound-absorbing pipe (13), and sound-absorbing cotton (17) is arranged between the sound-absorbing hole plate (18) and the pipe wall.

6. The low-noise intelligent water-retaining ventilation system for granaries according to any one of claims 1 to 3, characterized in that: The other end of the fan pipe (11) is detachably connected to the silencer pipe (13) by means of a flange (12).

7. The low-noise intelligent water-retaining ventilation system for granaries according to claim 2 or 3 is characterized by: The vent pipe (8) is provided with a buckle II (21) for locking and connecting the airtight cover II (20).

8. The low-noise intelligent water-retaining ventilation system for granaries according to claim 1 is characterized by: The silencer pipe (13) adopts a structure that is large in the middle and small at both ends.

9. The low-noise intelligent water-retaining ventilation system for granaries according to claim 4 is characterized by: A water drop isolation plate (28) and a drain port (27) are provided in the outlet end of the middle section of the muffler pipe (13); the drain port (27) is connected to a drain pipe (26); and the drain pipe (26) is a U-shaped drain pipe.

10. The low-noise intelligent water-retaining ventilation system for granaries according to claim 4 is characterized by: The silencer pipe (13) is formed by sealingly butting two pipe sections together via a butt flange (25).

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