Water retention device for granary ventilation

Abstract

The utility model discloses a water retention device for granary ventilation. The water retention device comprises a pipe barrel, an airtight cover is installed at one end of the pipe barrel, a hoist used for controlling opening and closing of the airtight cover is installed on the pipe barrel, an atomizer is installed in the pipe barrel and connected with a water source through a water supply pipe and a water pump, and the atomizer and the water pump are connected with a power source through wires. The water retention device for granary ventilation is simple in structure, is connected with a fan pipe for granary ventilation for use, can reduce ventilation noise, can start the atomizer according to needs, increases air humidity, and reduces water loss of stored grains; when ventilation is not conducted, the airtight cover is closed, and airtightness is good.

Description

Technical Field

[0001] This utility model relates to the technical field of storage equipment, specifically a water-retaining device for ventilation in grain warehouses. Background Technology

[0002] In my country's grain storage sector, various types of warehouses, such as flat warehouses, shallow round warehouses, vertical silos, and steel silos, are used for long-term storage or turnover of grains. When storing grains like rice, wheat, and corn in small warehouses, certain measures are necessary to prevent or reduce mold and insect infestation. Maintaining low temperatures and dryness, along with circulating fumigation within the warehouse, are important measures. To achieve these objectives, ventilation is required. This ventilation involves forcing air into the gaps between grain particles, providing multiple benefits such as cooling, dehumidification, fumigation, conditioning, controlled atmosphere treatment, and removal of residual toxins and odors. This necessitates that the entire grain warehouse be airtight (leaking air) 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 warehouse. 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 revealed that using natural cool air introduced through ventilation openings to cool grain 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. Therefore, there is a need to develop a device that can solve the problem of reducing moisture loss in grain storage through ventilation. Summary of the Invention

[0004] The purpose of this utility model is to provide a water-retaining device for grain storage ventilation. This water-retaining device for grain storage ventilation has a simple structure and can be used in conjunction with the ventilation fan pipe of the grain storage. It can reduce ventilation noise and can also turn on the atomizer as needed to increase air humidity and reduce moisture loss of stored grain. When not ventilating, the airtight cover can be closed to ensure good airtightness.

[0005] This utility model is achieved by the following technical solution:

[0006] A water-retaining device for grain storage ventilation includes a tube; one end of the tube is fitted with an airtight cover, and a hoist is installed on the tube to control the opening and closing of the airtight cover. The hoist is preferably a manual / electric dual-purpose worm gear hoist, also known as a manual / electric dual-purpose screw hoist. Both the fan and the hoist can be commercially available and installed. For easy connection and installation, a flange is provided at the other end of the tube. An atomizer is installed inside the tube, connected to a water source via a water supply pipe and a water pump. The water source refers to a container that pumps water to the atomizer via the water pump and water supply pipe, which can be a water tank or pool. The atomizer and water pump are also commercially available and installed. The atomizer and water pump are connected to a power source via wires.

[0007] A further preferred embodiment includes a latch on the tubing for locking the airtight cover. Preferably, the movable latch of the latch is fixedly installed on the outer wall of the tubing, while the fixed latch is located on the outer periphery of the airtight cover. Locking the latch ensures a more secure connection between the airtight cover and the tubing. The latches described are commercially available.

[0008] A further preferred embodiment: when the water-retaining device for ventilation of this grain warehouse is connected to the fan pipe, an annular sound-absorbing perforated plate is fixed inside the pipe, and sound-absorbing cotton is provided between the sound-absorbing perforated plate and the pipe wall, which can achieve the purpose of sound absorption.

[0009] A further preferred embodiment: the tube can be a straight cylindrical structure or a structure that is larger in the middle and smaller at both ends. Using a large-diameter tube in the middle section can reduce wind speed, facilitate the isolation and capture of water droplets in the air, and prevent un-atomized water from being transported into the grain silo.

[0010] A further preferred embodiment: the outlet end of the middle section of the tube 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 is a U-shaped drain pipe.

[0011] A further preferred embodiment: the 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.

[0012] This grain storage ventilation and water retention device has a simple structure. An atomizer is installed inside a tube with sound-absorbing cotton and a sound-absorbing perforated plate. When connected to the grain storage ventilation fan pipe, it can reduce the ventilation noise of the fan pipe. The atomizer can also be turned on as needed to increase air humidity and reduce moisture loss of stored grain. When not ventilating, the airtight cover is closed, ensuring good airtightness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the water-retaining device for ventilation in this grain warehouse;

[0014] Figure 2 for Figure 1 Schematic diagram of the internal installation structure of the middle tube;

[0015] Figure 3 This is a schematic diagram of the water-retaining device for grain warehouse ventilation in Example 3;

[0016] Figure 4 for Figure 3 Schematic diagram of the internal installation structure of the middle tube;

[0017] The names corresponding to the serial numbers in the figure are:

[0018] 1. Airtight cover; 2. Fastener; 3. Water supply pipe; 4. Water pump; 5. Water source; 6. Flange; 7. Pipe; 8. Hoist; 9. Sound-absorbing cotton; 10. Sound-absorbing perforated plate; 11. Atomizer; 12. Connecting flange; 13. Drain pipe; 14. Drain outlet; 15. Water droplet isolation plate. Detailed Implementation

[0019] To provide a clearer description of this technology, the following detailed explanation is provided in conjunction with the accompanying drawings and embodiments. Example 1

[0020] A water-retaining device for ventilation in a grain warehouse includes a pipe 7, which is a straight cylindrical pipe. One end of the pipe 7 is provided with a flange 6 for connecting to a fan pipe, and the other end of the pipe 7 is equipped with an airtight cover 1. An opening and closing mechanism 8 for controlling the opening and closing of the airtight cover 1 is installed on the pipe 7. The opening and closing mechanism is a manual and electric worm gear type opening and closing mechanism. An atomizer 11 is installed inside the pipe 7. The atomizer 11 is connected to a water source 5 through a water supply pipe 3 and a water pump 4. The atomizer 11 and the water pump 4 are respectively connected to a power source through wires.

[0021] The tube 7 is equipped with a latch 2 for locking the airtight cover 1. The movable latch of the latch 2 is fixedly installed on the outer wall of the tube 7, and the fixed latch of the latch 2 is located on the outer periphery of the airtight cover 1. Example 2

[0022] A water-retaining device for ventilation in a grain warehouse includes a pipe 7, which is a straight cylindrical pipe. One end of the pipe 7 is provided with a flange 6 for connecting to a fan pipe, and the other end of the pipe 7 is equipped with an airtight cover 1. An opening and closing mechanism 8 for controlling the opening and closing of the airtight cover 1 is installed on the pipe 7. The opening and closing mechanism is a manual and electric worm gear type opening and closing mechanism. An atomizer 11 is installed inside the pipe 7. The atomizer 11 is connected to a water source 5 through a water supply pipe 3 and a water pump 4. The atomizer 11 and the water pump 4 are respectively connected to a power source through wires.

[0023] The tube 7 is equipped with a latch 2 for locking the airtight cover 1. The movable latch of the latch 2 is fixedly installed on the outer wall of the tube 7, and the fixed latch of the latch 2 is located on the outer periphery of the airtight cover 1.

[0024] An annular sound-absorbing plate 10 is fixed inside the tube 7, and sound-absorbing cotton 9 is provided between the sound-absorbing plate 10 and the tube wall. Example 3

[0025] A water-retaining device for ventilation in a grain warehouse includes a pipe 7. One end of the pipe 7 is provided with a flange 6 for connecting to a fan pipe, and the other end of the pipe 7 is equipped with an airtight cover 1. An opening and closing mechanism 8 for controlling the opening and closing of the airtight cover 1 is installed on the pipe 7. The opening and closing mechanism is a manual and electric worm gear type opening and closing mechanism. An atomizer 11 is installed inside the pipe 7. The atomizer 11 is connected to a water source 5 through a water supply pipe 3 and a water pump 4. The atomizer 11 and the water pump 4 are respectively connected to a power source through wires.

[0026] The tube 7 is equipped with a latch 2 for locking the airtight cover 1. The movable latch of the latch 2 is fixedly installed on the outer wall of the tube 7, and the fixed latch of the latch 2 is located on the outer periphery of the airtight cover 1.

[0027] An annular sound-absorbing plate 10 is fixed inside the tube 7, and sound-absorbing cotton 9 is provided between the sound-absorbing plate 10 and the tube wall.

[0028] The pipe 7 has a structure that is larger in the middle and smaller at both ends. A water droplet isolation plate 15 and a drain outlet 14 are installed inside the outlet end of the middle section of the pipe 7. The drain outlet 14 is connected to a drain pipe 13, which is a U-shaped drain pipe. The pipe 7 is formed by sealing two pipe sections together with a connecting flange 12.

[0029] During installation, connect the flange 6 of the tube 7 to the air inlet of the gas distribution box or fan pipe. When ventilation is not required, tighten the latch 2 and seal the end of the tube 7 with the airtight cover 1. When natural ventilation is needed, loosen the latch 2, control the manual / electric worm gear hoist 8 to open the airtight cover 1, and start the fan in the fan pipe to ventilate. If necessary, turn on the atomizer 11 and water pump 4 inside the tube 7 to increase air humidity and reduce moisture loss from stored grain.

[0030] When used in conjunction with a fan duct, this utility model's water-retaining device for grain storage ventilation collects temperature and humidity data from inside and outside the storage area. Through real-time calculation and comparison with set target parameters, the device controls water pumps and atomizers via the grain storage controller. This allows for selection of different operating modes, such as dewatering ventilation, water-retaining ventilation, and conditioning ventilation, depending on the working conditions. Testing shows that the fan noise level is 70-85 dB(A), and the silencer reduces the noise by 20-25 dB(A). For boundary grain storage areas, further supplementing the fan with appropriate silencer equipment can achieve ventilation throughout the entire storage area without disturbing residents.

[0031] 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 water-retaining device for ventilation in grain warehouses, characterized in that: Includes a tube (7); one end of the tube (7) is provided with a flange (6) for installation and connection, one end of the tube (7) is provided with an airtight cover (1), and the tube (7) is provided with an opening and closing machine (8) for controlling the opening and closing of the airtight cover (1); an atomizer (11) is installed inside the tube (7), the atomizer (11) is connected to the water source (5) through a water supply pipe (3) and a water pump (4), and the atomizer (11) and the water pump (4) are connected to the power supply through wires.

2. The water-retaining device for grain storage ventilation according to claim 1, characterized in that: The tube (7) is equipped with a latch (2) for locking the airtight cover (1).

3. The water-retaining device for grain storage ventilation according to claim 1 or 2, characterized in that: The tube (7) is fixed with an annular sound-absorbing plate (10), and sound-absorbing cotton (9) is provided between the sound-absorbing plate (10) and the tube wall.

4. The water-retaining device for grain storage ventilation according to claim 1, characterized in that: The tube (7) has a structure that is large in the middle and small at both ends.

5. The water-retaining device for grain storage ventilation according to claim 4, characterized in that: The middle section of the tube (7) is provided with a water droplet isolation plate (15) and a drain outlet (14). The drain outlet (14) is connected to a drain pipe (13), which is a U-shaped drain pipe.

6. The water-retaining device for grain storage ventilation according to claim 4, characterized in that: The tube (7) is formed by sealing two sections of tube body together through a connecting flange (12).

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