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] This invention relates to the technical field of storage equipment, specifically a low-noise intelligent water-retaining and ventilation system for grain storage. Background Technology

[0002] Grain storage primarily utilizes flat warehouses, shallow circular silos, vertical silos, and steel silos for long-term storage or turnover. When storing grains such as rice, wheat, and corn in small grain silos, certain measures are necessary to prevent or reduce mold and insect infestation. Maintaining low temperatures and dryness, along with circulating fumigation within the silo, are crucial measures. To achieve these objectives, ventilation is required. This ventilation involves forcing air into the gaps between grain particles, providing multiple functions such as cooling, dehumidification, fumigation, conditioning, controlled atmosphere treatment, and removal of residual toxins and odors. This necessitates that the entire grain silo be airtight (leak-proof) for a sustained period, while also having sealable ventilation openings. When ventilation is not required, the ventilation openings are closed and sealed, maintaining a good airtight condition within the grain silo. When the outside temperature is lower than the inside temperature and ventilation is needed in the grain warehouse, the vents are opened and a portable fan is connected to blow outside air directly into the grain warehouse to cool the grain using natural cold air. When the outside temperature is higher than the inside temperature, a grain cooler needs to be connected to blow cold air into the grain warehouse to cool it down.

[0003] Applied research has found that using natural cool air to cool grain through ventilation openings inevitably leads to moisture loss as the low-humidity air passes through the grain pile. This is a major loss during grain storage, especially in arid climates. Furthermore, with urbanization, grain depots formerly located in suburban areas are gradually becoming "urban warehouses," with excessive noise from mechanical ventilation systems frequently causing complaints from nearby residents. Current national standards for Class 2 acoustic environment functional zones (commercial and residential) require that the daytime noise level at the grain depot boundary should not exceed 60 dB(A), and the nighttime noise level should not exceed 50 dB(A). However, the noise level within 2 meters of currently used centrifugal fans typically reaches 90 dB(A)-105 dB(A), and the boundary noise usually reaches 75 dB(A)-85 dB(A). Furthermore, existing ventilation openings require external fans for ventilation when they lack built-in fans, making operation cumbersome. When the ventilation openings contain motorized impellers connected to grain coolers, the impellers obstruct the flow of cold air, necessitating the removal of the impellers or simultaneous operation with the grain coolers, increasing labor intensity and energy consumption. Moreover, during fumigation of the grain silo, the fan motors inside the ventilation openings are susceptible to corrosion from fumigation gases, potentially causing short circuits and fires. Therefore, a low-noise, moisture-retaining ventilation system is needed that offers good ventilation, is easy to operate, solves the problem of noise pollution from grain storage ventilation, and reduces moisture loss during grain storage. Summary of the Invention

[0004] The purpose of this invention is to provide a low-noise intelligent water-retaining ventilation system for grain silos. This system has a simple structure. When using natural wind for ventilation, the airtight cover is opened, and the impeller with a motor inside the fan pipe is activated, avoiding the labor of moving the fan and installing the duct. The atomizer inside the silencer pipe can be activated as needed to increase air humidity and reduce moisture loss from the stored grain, while the silencer pipe also reduces ventilation noise. When grain cooling is required, the ventilation outlet pipe is connected to the grain cooler with a ventilation hose, eliminating the need to remove the impeller with the motor, making it convenient to use. When ventilation is not needed, the airtight cover is closed, ensuring good airtightness.

[0005] This invention is achieved using the following technical solution: A low-noise intelligent water-retaining and ventilation system for grain silos includes a fan duct and a controller. An impeller with a motor is installed inside the fan duct. The motor driving the impeller is a fumigation-resistant motor. One end of the fan duct is connected to a ventilation outlet duct. There are two connection methods between the fan duct and the ventilation outlet duct. In the first method, one end of the fan duct is hinged to the ventilation outlet duct, and one end of the ventilation outlet duct is connected to the fan duct. The ventilation outlet duct and the fan duct are connected by a flange or by a latch III locking connection. When using a latch III locking connection, the ventilation outlet duct is equipped with a latch III for locking the fan duct. Preferably, the movable latch of the latch III is installed on the outer wall of the ventilation outlet duct, and the fixed latch of the latch III is located on the outer periphery of the fan duct. The other end of the ventilation outlet duct is equipped with a fixed flange for communicating with the ventilation duct inside the silo. A humidity sensor is installed inside the ventilation outlet duct. The other end of the fan duct is connected to a silencer duct, with the end of the silencer duct furthest from the fan duct... An airtight cover I is installed, and a gate opener I for controlling the opening and closing of the airtight cover I is installed on the silencer pipe. The gate opener I is preferably a manual / electric dual-purpose worm gear gate opener, which can also be called a manual / electric dual-purpose screw gate opener. The impeller with motor and the manual / electric dual-purpose worm gear gate opener can be purchased and installed commercially. An atomizer is installed inside the silencer pipe, and the atomizer is connected to the water source through a water supply pipe and a water pump. The controller is connected to the water pump, gate opener I, humidity sensor, impeller with motor and atomizer through wires. The controller is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump, gate opener I, impeller with motor and atomizer according to the set program.

[0006] The second type of connection between the fan duct and the vent duct involves a tight connection between the fan duct and the vent duct on their sides. One end of the vent duct is fitted with an airtight cover II, and a hoist II is installed on the vent duct to control the opening and closing of the airtight cover II. The hoist II is preferably a manual / electric dual-purpose worm gear hoist, also known as a manual / electric dual-purpose screw hoist. The other end of the vent duct is equipped with a fixed flange for communication with the ventilation duct inside the warehouse. A humidity sensor is installed inside the vent duct. A silencer pipe is connected to the other end of the fan duct via a flange. An airtight cover I is installed at the end of the silencer pipe away from the fan pipe, and a gate opener I is installed on the silencer pipe to control the opening and closing of the airtight cover I; an atomizer is installed inside the silencer pipe, and the atomizer is connected to the water source through a water supply pipe and a water pump; the controller is connected to the water pump, gate opener I, humidity sensor, motor-driven impeller, atomizer and gate opener II respectively through wires. The controller is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump, gate opener I, motor-driven impeller, atomizer and gate opener II according to the set program.

[0007] The low-noise intelligent water-retaining ventilation system for grain silos can be configured with a non-connected structure for the fan pipe and vent pipe. It includes a fan pipe, a vent pipe, and a gas distribution box. An impeller with a motor is installed inside the fan pipe. The system is characterized by further including a controller. One end of each fan pipe and vent pipe is connected to the gas distribution box. Both the fan pipe and vent pipe are fixed to the grain silo wall and connected to the gas distribution box. An airtight cover II is installed at the outer end of the vent pipe, and an opening / closing mechanism II is installed on the vent pipe to control the opening and closing of the airtight cover II. A humidity sensor is installed inside the gas distribution box. The system includes a sensor; a silencer pipe is connected to the other end of the fan pipe, and an airtight cover I is installed at the end of the silencer pipe away from the fan pipe. A gate opener I is installed on the silencer pipe to control the opening and closing of the airtight cover I; an atomizer is installed inside the silencer pipe, and the atomizer is connected to the water source through a water supply pipe and a water pump; the controller is connected to the water pump, gate opener I, humidity sensor, impeller with fan, atomizer and gate opener II through wires respectively. The controller is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump, gate opener I, impeller with fan, atomizer and gate opener II according to the set program.

[0008] A further preferred embodiment: the silencer pipe adopts a structure that is larger in the middle and smaller at both ends. The middle section uses a large-diameter pipe, which can reduce the wind speed and facilitate the isolation and capture of water droplets in the air, preventing un-atomized water from being transported into the grain silo.

[0009] A further preferred embodiment: the outlet end of the middle section of the silencer pipe is provided with a water droplet isolation plate and a drain outlet, the drain outlet is connected to a drain pipe, and the drain pipe adopts a U-shaped drain pipe.

[0010] A further preferred embodiment: the silencer tube is made of two sections of tube connected by a sealing flange. By removing the bolts on the flange, the tube can be divided into two sections, which facilitates the inspection and maintenance of the water droplet isolation plate and atomizer inside the tube.

[0011] A further preferred embodiment includes a latch I installed on the silencer tube for locking the airtight cover I. The movable latch of the latch I is fixedly installed on the outer wall of the silencer tube, while the fixed latch of the latch I is located on the outer periphery of the airtight cover I. Locking the latch I makes the connection between the airtight cover I and the silencer tube more secure.

[0012] A further preferred embodiment: an annular silencing plate is fixed inside the silencing pipe, and silencing cotton is provided between the silencing plate and the pipe wall.

[0013] A further preferred embodiment: the other end of the fan pipe is detachably connected to the silencer pipe via a flange.

[0014] A further preferred embodiment includes a latch II installed on the vent pipe for locking the airtight cover II. The movable latch of latch II is fixedly installed on the outer wall of the vent pipe, and the fixed latch of latch II is located on the outer periphery of the airtight cover II. The latches I, II, and III mentioned above are commercially available latches.

[0015] This grain silo's low-noise intelligent water-retaining ventilation system has a simple structure. When using natural wind for ventilation, simply open the airtight cover and start the motorized impeller inside the fan pipe, avoiding the labor of moving the fan and installing the duct. The atomizer inside the silencer pipe can be activated as needed to increase air humidity and reduce moisture loss from the stored grain, while also reducing ventilation noise. When grain cooling is required, the ventilation outlet pipe is connected to the grain cooler using a flexible ventilation hose, eliminating the need to remove the motorized impeller, making it convenient to use. When ventilation is not needed, the airtight cover is closed, ensuring good airtightness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the low-noise intelligent water-retaining and ventilation system for grain storage in Example 1; Figure 2 for Figure 1 A diagram of AA in the middle; Figure 3 This is a schematic diagram of the low-noise intelligent water-retaining and ventilation system for grain storage in Example 2; Figure 4 This is a schematic diagram of the low-noise intelligent water-retaining and ventilation system for grain storage in Example 3; Figure 5 This is a schematic diagram of the low-noise intelligent water-retaining and ventilation system for grain storage in Example 4; Figure 6 This is a schematic diagram of the silencer tube in Example 4; Figure 7 for Figure 6 Schematic diagram of the internal installation structure of the silencer pipe; The names corresponding to the serial numbers in the figure are: 1. Airtight cover I; 2. Hook and loop I; 3. Water supply pipe; 4. Water pump; 5. Water source; 6. Controller; 7. Hook and loop III; 8. Ventilation pipe; 9. Fixed flange; 10. Hinge; 11. Fan pipe; 12. Flange; 13. Silencing pipe; 14. Gate hoist I; 15. Humidity sensor; 16. Impeller with motor; 17. Sound-absorbing cotton; 18. Sound-absorbing perforated plate; 19. Atomizer; 20. Airtight cover II; 21. Hook and loop II; 22. Gate hoist II; 23. Grain silo wall; 24. Gas distribution box; 25. Connecting flange; 26. Drain pipe; 27. Drain outlet; 28. Water droplet isolation plate. Detailed Implementation

[0017] To provide a clearer description of this technology, the following detailed explanation is provided in conjunction with the accompanying drawings and embodiments. Example 1

[0018] A low-noise intelligent water-retaining and ventilation system for grain silos includes a fan pipe 11 and a controller 6. An impeller 16 with a motor is installed inside the fan pipe 11. A ventilation outlet pipe 8 is hinged to one end of the fan pipe 11 via a hinge 10. One end of the ventilation outlet pipe 8 is connected to the fan pipe 11. A latch Ⅲ7 for locking the fan pipe 11 is installed on the ventilation outlet pipe 8. The movable latch of the latch Ⅲ7 is installed on the outer wall of the ventilation outlet pipe 8, and the fixed latch of the latch Ⅲ7 is located on the outer periphery of the fan pipe 11. A fixed flange 9 for communicating with a ventilation duct inside the silo is provided at the other end of the ventilation outlet pipe 8. A humidity sensor 15 is installed inside the ventilation outlet pipe 8. A silencer pipe 13 is installed via flange 12. An airtight cover I1 is installed at the end of the silencer pipe 13 away from the fan pipe 11. An opening and closing mechanism I14 for controlling the opening and closing of the airtight cover I1 is installed on the silencer pipe 13. An atomizer 19 is installed inside the silencer pipe 13. The atomizer 19 is connected to the water source 5 via a water supply pipe 3 and a water pump 4. A controller 6 is connected to the water pump 4, the opening and closing mechanism I14, the humidity sensor 15, the impeller 16 with a motor, and the atomizer 19 via wires. The controller 6 is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump 4, the opening and closing mechanism I14, the impeller 16 with a motor, and the atomizer 19 according to the set program.

[0019] The silencer tube 13 is equipped with a latch I2 for locking the airtight cover I1. The movable latch of the latch I2 is fixedly installed on the outer wall of the silencer tube 13, and the fixed latch of the latch I2 is located on the outer periphery of the airtight cover I1.

[0020] The silencing pipe 13 has an annular silencing plate 18 fixed inside, and silencing cotton 17 is provided between the silencing plate 18 and the pipe wall.

[0021] When ventilation is not required, fasten latches I2 and III7, and seal the end of the silencer pipe 13 with the airtight cover I1; the vent pipe 8 is tightly connected to the fan pipe 11 to close the vent. When natural ventilation is needed, loosen latch I2, control the hoist I14 to open the airtight cover I1, and start the impeller 16 with the motor to ventilate. If necessary, turn on the atomizer 19 and water pump 4 inside the silencer pipe 13 to increase air humidity and reduce moisture loss from stored grain. When the grain cooler needs to be connected, loosen latch III7, separate the fan pipe 11 from the vent pipe 8, and lock the air duct of the grain cooler to the vent pipe 8 to allow the grain cooler to supply air. Example 2

[0022] A low-noise intelligent water-retaining and ventilation system for grain silos includes a fan pipe 11 and a controller 6. An impeller 16 with a motor is installed inside the fan pipe 11. A ventilation outlet pipe 8 is hinged to one end of the fan pipe 11 via a hinge 10. One end of the ventilation outlet pipe 8 is connected to the fan pipe 11 via a flange. The other end of the ventilation outlet pipe 8 is provided with a fixed flange 9 for communication with ventilation ducts inside the silo. A humidity sensor 15 is installed inside the ventilation outlet pipe 8. A silencer pipe 13 is connected to the other end of the fan pipe 11, with the silencer pipe 13 located away from the fan pipe. An airtight cover I1 is installed at end 11, and a gate opener I14 for controlling the opening and closing of the airtight cover I1 is installed on the silencer pipe 13; an atomizer 19 is installed inside the silencer pipe 13, and the atomizer 19 is connected to the water source 5 through the water supply pipe 3 and the water pump 4; the controller 6 is connected to the water pump 4, the gate opener I14, the humidity sensor 15, the impeller 16 with a motor and the atomizer 19 through wires respectively. The controller 6 is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump 4, the gate opener I14, the impeller 16 with a motor and the atomizer 19 according to the set program.

[0023] The silencer tube 13 is equipped with a latch I2 for locking the airtight cover I1. The movable latch of the latch I2 is fixedly installed on the outer wall of the silencer tube 13, and the fixed latch of the latch I2 is located on the outer periphery of the airtight cover I1.

[0024] The silencing pipe 13 has an annular silencing plate 18 fixed inside, and silencing cotton 17 is provided between the silencing plate 18 and the pipe wall.

[0025] When ventilation is not required, lock buckle I2 and seal the end of silencer pipe 13 with airtight cover I1; vent pipe 8 is tightly connected to fan pipe 11 to seal the vent. When natural ventilation is needed, loosen buckle I2, control hoist I14 to open airtight cover I1, and start impeller 16 with motor to ventilate. If necessary, turn on atomizer 19 and water pump 4 inside silencer pipe 13 to increase air humidity and reduce moisture loss from stored grain. When connecting to a grain cooler, use flange bolts to separate fan pipe 11 from vent pipe 8, and lock the air duct of the grain cooler to vent pipe 8 to ventilate. Example 3

[0026] A low-noise intelligent water-retaining ventilation system for grain silos includes a fan pipe 11 and a controller 6. An impeller 16 with a motor is installed inside the fan pipe 11. One end of the fan pipe 11 is connected to a ventilation outlet pipe 8, with the fan pipe 11 and the ventilation outlet pipe 8 in close contact. One end of the ventilation outlet pipe 8 is fitted with an airtight cover II 20, and an opening / closing mechanism II 22 for controlling the opening and closing of the airtight cover II 20 is installed on the ventilation outlet pipe 8. The other end of the ventilation outlet pipe 8 is provided with a fixed flange 9 for communicating with the ventilation duct inside the silo. A humidity sensor 15 is installed inside the ventilation outlet pipe 8. A silencer pipe 13 is connected to the other end of the fan pipe 11 via a flange 12. An airtight cover I1 is installed at the end of the silencer pipe 13 away from the fan pipe 11. An opening and closing mechanism I14 for controlling the opening and closing of the airtight cover I1 is installed on the silencer pipe 13. An atomizer 19 is installed inside the silencer pipe 13. The atomizer 19 is connected to the water source 5 through the water supply pipe 3 and the water pump 4. The controller 6 is connected to the water pump 4, the opening and closing mechanism I14, the humidity sensor 15, the impeller 16 with a motor, the atomizer 19, and the opening and closing mechanism II22 through wires. The controller 6 is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump 4, the opening and closing mechanism I14, the motor, the atomizer 19, and the opening and closing mechanism II22 according to the set program.

[0027] The silencer tube 13 is equipped with a latch I2 for locking the airtight cover I1. The movable latch of the latch I2 is fixedly installed on the outer wall of the silencer tube 13, and the fixed latch of the latch I2 is located on the outer periphery of the airtight cover I1.

[0028] The silencing pipe 13 has an annular silencing plate 18 fixed inside, and silencing cotton 17 is provided between the silencing plate 18 and the pipe wall.

[0029] The ventilation pipe 8 is equipped with a latch II21 for locking the airtight cover II20. The movable latch of the latch II21 is fixedly installed on the outer wall of the ventilation pipe 8, and the fixed latch of the latch II21 is located on the outer periphery of the airtight cover II20.

[0030] When ventilation is not required, fasten latches I2 and II21, and seal the end of the silencer pipe 13 with the airtight cover I1; the vent pipe 8 is tightly connected to the airtight cover II20 to seal the vent. When natural ventilation is needed, loosen latch I2, control the hoist I14 to open the airtight cover I1, and start the impeller 16 with the motor to ventilate. If necessary, activate the atomizer 19 and water pump 4 inside the silencer pipe 13 to increase air humidity and reduce moisture loss from stored grain. When connecting to a grain cooler, seal the end of the silencer pipe 13 with the airtight cover I1, loosen latch II21, control the hoist II22 to open the airtight cover II20, and lock the air duct of the grain cooler to the vent pipe 8 to ventilate. Example 4

[0031] A low-noise intelligent water-retaining ventilation system for grain silos includes a fan pipe 11, a ventilation outlet pipe 8, and a gas distribution box 24. The fan pipe 11 houses an impeller 16 with a motor. The system is characterized by further including a controller 6. One end of the fan pipe 11 and one end of the ventilation outlet pipe 8 are respectively connected to the gas distribution box 24. Both the fan pipe 11 and the ventilation outlet pipe 8 are fixed to the grain silo wall 23 and connected to the gas distribution box 24. An airtight cover II 20 is installed at the outer end of the ventilation outlet pipe 8, and an opening / closing mechanism II 22 for controlling the opening and closing of the airtight cover II 20 is installed on the ventilation outlet pipe 8. A humidity sensor 15 is installed inside the gas distribution box 24. The other end of the fan pipe 11 is connected to... A silencer pipe 13 is provided, with an airtight cover I1 installed at the end of the silencer pipe 13 away from the fan pipe 11. A gate opener I14 for controlling the opening and closing of the airtight cover I1 is installed on the silencer pipe 13. An atomizer 19 is installed inside the silencer pipe 13, and the atomizer 19 is connected to the water source 5 through the water supply pipe 3 and the water pump 4. A controller 6 is connected to the water pump 4, gate opener I14, humidity sensor 15, impeller 16 with fan, atomizer 19 and gate opener II22 respectively through wires. The controller 6 is equipped with an automatic control module and a manual control module. The automatic control module can control the operation of the water pump 4, gate opener I14, impeller 16 with fan, atomizer 19 and gate opener II22 according to the set program.

[0032] The silencer tube 13 is equipped with a latch I2 for locking the airtight cover I1.

[0033] The silencing pipe 13 has an annular silencing plate 18 fixed inside, and silencing cotton 17 is provided between the silencing plate 18 and the pipe wall.

[0034] The other end of the fan pipe 11 is detachably connected to the silencer pipe 13 via a flange 12.

[0035] The ventilation pipe 8 is equipped with a latch II21 for locking the airtight cover II20.

[0036] The silencer pipe 13 has a structure that is larger in the middle and smaller at both ends. The outlet end of the middle section of the silencer pipe 13 is provided with a water droplet isolation plate 28 and a drain outlet 27. The drain outlet 27 is connected to a drain pipe 26, which is a U-shaped drain pipe.

[0037] The silencer pipe 13 is made of two pipe sections connected by a sealing flange 25.

[0038] When ventilation is not required, fasten latches I2 and II21, and seal the end of the silencer pipe 13 with the airtight cover I1; the vent pipe 8 is tightly connected to the airtight cover II20 to seal the vent. When natural ventilation is needed, loosen latch I2, control the hoist I14 to open the airtight cover I1, and start the impeller 16 with the motor to ventilate. If necessary, activate the atomizer 19 and water pump 4 inside the silencer pipe 13 to increase air humidity and reduce moisture loss from stored grain. When connecting to a grain cooler, seal the end of the silencer pipe 13 with the airtight cover I1, loosen latch II21, control the hoist II22 to open the airtight cover II20, and lock the air duct of the grain cooler to the vent pipe 8 to ventilate.

[0039] The low-noise intelligent water-retaining ventilation system for grain silos of this invention collects temperature and humidity data from inside and outside the silo, and calculates and compares the data with set target parameters in real time. The controller 6 controls the water pump 4, the motor-driven impeller 16, and the atomizer 19, allowing for selection of different operating modes such as dewatering ventilation, water-retaining ventilation, and conditioning ventilation based on the working conditions. Testing shows that the fan noise is 70-85 dB(A), and the silencer reduces the noise by 20-25 dB(A). For the ventilators in the boundary grain silos, further supplementary noise reduction equipment can achieve ventilation throughout the entire grain storage area without disturbing residents.

[0040] The above description is not intended to limit this application, nor is this application limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this application should fall within the protection scope of this application.

Claims

1. A low-noise intelligent water-retention ventilation system for granary, comprising a fan pipe (11), wherein an impeller (16) with a motor is installed in the fan pipe (11); characterized in that: It also includes a controller (6), one end of the fan pipe (11) is hinged to install a vent pipe (8) through the hinge (10), one end of the vent pipe (8) is connected with the fan pipe (11), the vent pipe (8) and the fan pipe (11) are connected by flange or are locked by the buckle III (7), the other end of the vent pipe (8) is provided with a fixed flange (9) for communicating with the ventilation duct in the warehouse, the humidity sensor (15) is installed in the vent pipe (8); the other end of the fan pipe (11) is connected with the muffler pipe (13), the muffler pipe (13) is installed with the air-tight cover I (1) away from the fan pipe (11), the muffler pipe (13) is installed with the opening and closing machine I (14) for controlling the opening and closing of the air-tight cover I (1); the atomizer (19) is installed in the muffler pipe (13), the atomizer (19) is connected with the water source (5) through the water supply pipe (3) and the water pump (4); the controller (6) is connected with the water pump (4), the opening and closing machine I (14), the humidity sensor (15), the impeller with motor 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 working of the water pump (4), the opening and closing machine I (14), the impeller with motor and the atomizer (19) according to the setting program.

2. A low-noise intelligent water-retention ventilation system for granaries, comprising a fan pipe (11) in which an impeller (16) with a motor is installed; characterized in that: It also includes a controller (6), one end of the fan pipe (11) is hinged to install a vent pipe (8) through the hinge (10), one end of the vent pipe (8) is connected with the fan pipe (11), the vent pipe (8) and the fan pipe (11) are connected by flange or are locked by the buckle III (7), the other end of the vent pipe (8) is provided with a fixed flange (9) for communicating with the ventilation duct in the warehouse, the humidity sensor (15) is installed in the vent pipe (8); the other end of the fan pipe (11) is connected with the muffler pipe (13), the muffler pipe (13) is installed with the air-tight cover I (1) away from the fan pipe (11), the muffler pipe (13) is installed with the opening and closing machine I (14) for controlling the opening and closing of the air-tight cover I (1); the atomizer (19) is installed in the muffler pipe (13), the atomizer (19) is connected with the water source (5) through the water supply pipe (3) and the water pump (4); the controller (6) is connected with the water pump (4), the opening and closing machine I (14), the humidity sensor (15), the impeller with motor 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 working of the water pump (4), the opening and closing machine I (14), the impeller with motor and the atomizer (19) according to the setting program.

3. A low-noise intelligent moisture-preserving ventilation system for granaries, comprising a fan pipe (11), a ventilation pipe (8) and a gas distribution box (24), wherein the fan pipe (11) is provided with an impeller (16) with a motor; characterized in that: The controller (6) is connected with the water pump (4), the opening and closing machine I (14), the humidity sensor (15), the impeller (16), the atomizer (19) and the opening and closing machine II (22) through wires.

4. The low-noise intelligent moisture-preserving ventilation system for granaries according to any one of claims 1 to 3, characterized in that: The silencer pipe (13) is internally fixed with a ring-shaped silencer hole plate (18), and the silencer hole plate (18) and the pipe wall are provided with silencer cotton (17).

5. The low-noise intelligent moisture-preserving 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 with the silencer pipe (13) through a flange (12).

6. The low-noise intelligent moisture-preserving ventilation system for granaries according to any one of claims 1 to 3, characterized in that: The air vent pipe (8) is provided with a buckle II (21) for locking and connecting the air-tight cover II (20).

7. The low-noise intelligent moisture-preserving ventilation system for granaries according to claim 2 or 3, characterized in that: The silencer pipe (13) has a structure of large middle and small two ends.

8. The silo low-noise smart moisture-preserving ventilation system of claim 1, wherein: The outlet end of the middle section of the silencer pipe (13) is provided with a water bead isolation plate (28) and a drain (27), and the drain (27) is connected with a drain pipe (26) which is in a U shape.

9. The silo low-noise intelligent moisture-preserving ventilation system according to claim 4, characterized in that: The silencer pipe (13) is formed by sealingly connecting two pipe bodies through a butt flange (25).

10. The silo low-noise intelligent moisture-preserving ventilation system according to claim 4, characterized in that: ​

Images