Grain local internal circulation ventilation device

Abstract

The utility model belongs to the field of ventilation devices, and particularly relates to a grain local internal circulation ventilation device which comprises a grain bin, an air circulation mechanism and a constant humidity device. The air circulation mechanism comprises an air inlet pipe, a first centrifugal fan, a return pipe, a second centrifugal fan, an exhaust pipe, an exhaust pipe, a dehumidifying header pipe and a third centrifugal fan; an insect prevention box is mounted at the bottom of the air circulation mechanism; air flows back into the air inlet pipe through the second centrifugal fan, then the air inlet pipe flows back into the grain bin, internal circulation is achieved, grain deterioration caused by too high external space is avoided, meanwhile, the first centrifugal fan and the second centrifugal fan can be driven at the same time, internal circulation and external circulation are integrated, air accumulated in grain is sucked in around the air suction pipe, and the air suction efficiency is improved. The sucked wet air is exhausted through the dehumidifying main pipe, the moisture content of the grains is kept by sucking the air, the grains are prevented from mildewing, the problem that airflow flows in a closed space is solved, and the grain storage quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of ventilation devices, in particular to a local internal circulation ventilation device for grains. Background Art

[0002] The internal circulation ventilation device uses centrifugal fans for positive pressure ventilation through the vents in winter to reduce the grain temperature to minus five to ten degrees Celsius. When it is time to store grain in summer, the centrifugal fans in the warehouse are used to suck the cold source at the bottom of the grain pile into the warehouse to reduce the surface temperature of the grain in the warehouse.

[0003] Chinese patent number CN202222796040.4 discloses an internal circulation cooling and water-retaining ventilation device for a granary, comprising a centrifugal fan, an air supply hose and an air suction hose arranged outside the granary, one end of the air supply hose is connected to the air outlet of the centrifugal fan, and the other end is connected to the granary window cover, one end of the air suction hose is connected to the air inlet of the centrifugal fan, and the other end is connected to the granary floor cage ventilation interface, the centrifugal fan, the air supply hose, the granary window cover, the granary inner room, the granary floor cage ventilation interface and the air suction hose form a closed internal circulation structure, and the centrifugal fan, the air supply hose and the air suction hose are all provided with an insulation layer made of insulation material.

[0004] From the above, it can be seen that the centrifugal fan is respectively connected to the granary window cover and the granary floor cage ventilation interface. The centrifugal fan generates a large air volume, which makes the air flow in the granary flow. The cold source of the cold core of the grain pile is used to reduce the temperature of the heated grain and achieve the effect of mechanical ventilation and cooling. However, this case still has the following shortcomings. Because the air flow flows in a closed space and has no contact with the outside world, it is very easy to produce bacteria. After the bacteria are decomposed through fermentation, a very strong odor is produced, which causes mold growth.

[0005] Therefore, in order to solve the above problems, a local internal circulation ventilation device for grain is proposed. Utility Model Content

[0006] In order to make up for the deficiency of the prior art and the problem of airflow flowing in a closed space, the utility model proposes a grain local internal circulation ventilation device.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a local internal circulation ventilation device for grain described in the utility model includes a grain bin, an air circulation mechanism, and a constant humidity device; the air circulation mechanism includes an air intake pipe, a first centrifugal fan, a return pipe, a second centrifugal fan, an exhaust pipe, an exhaust pipe, a dehumidification main pipe, and a third centrifugal fan, an insect-proof box is installed at the bottom of the air circulation mechanism, an air intake pipe is fixedly sleeved on the top of the insect-proof box, a first centrifugal fan is fixedly sleeved on one side of the air intake pipe, a return pipe is fixedly sleeved on one side of the air intake pipe, and a second centrifugal fan is fixedly sleeved on one side of the return pipe.

[0008] Preferably, the constant humidity device includes a constant humidity chamber, an atomizer is fixedly connected to the interior of the constant humidity chamber, three condensers are fixedly connected to the interior of the constant humidity chamber, a return pipe is fixedly connected to the bottom of the constant humidity chamber, the other end of the return pipe is fixedly connected to a water tank, a plasma purifier is fixedly connected to the inner wall of the water tank, a filling port is fixedly connected to the bottom of the water tank, a water inlet pipe is fixedly connected to the top of the water tank, and the other end of the water inlet pipe is fixedly connected to the atomizer.

[0009] Preferably, an air inlet hole is opened on one side of the grain silo, an air inlet pipe is fixedly connected to the air inlet hole, an exhaust hole is opened on one side of the grain silo, an exhaust pipe is fixedly connected to the exhaust hole, and a dehumidification hole is opened on one side of the grain silo, and a dehumidification main pipe is fixedly connected to the dehumidification hole.

[0010] Preferably, three exhaust pipes are fixedly connected inside the grain silo, the exhaust pipes are fixedly sleeved with a dehumidification main pipe, and a third centrifugal fan is fixedly sleeved on one side of the dehumidification main pipe.

[0011] Preferably, an insect-proof box is fixedly connected to one side of the grain silo, a constant humidity box is fixedly connected to one side of the grain silo, and a water tank is fixedly connected to one side of the grain silo.

[0012] Preferably, a return pipe is fixedly sleeved on one side of the constant humidity device, and an exhaust pipe is fixedly sleeved on the top of the constant humidity device.

[0013] Preferably, a first centrifugal fan is fixedly connected to one side of the grain silo, a second centrifugal fan is fixedly connected to one side of the grain silo, and a third centrifugal fan is fixedly connected to one side of the grain silo.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model realizes the function of integrating internal and external circulation through the structural design of the air circulation mechanism. The air is returned to the air inlet pipe through the second centrifugal fan, and the air inlet pipe then returns the air to the inside of the grain bin to realize internal circulation, thereby preventing the external space from being too high and causing the grain to deteriorate. At the same time, the first centrifugal fan and the second centrifugal fan can be driven at the same time to achieve the function of integrating internal and external circulation. The air accumulated in the grain is sucked in around the exhaust pipe, and the sucked humid air is discharged through the dehumidification main pipe. The air is sucked to maintain the moisture content of the grain, thereby preventing the grain from becoming moldy, solving the problem of airflow in a closed space, and improving the quality of grain preservation.

[0016] 2. The utility model realizes the function of controllable humidity through the structural design of the constant humidity device. The atomizer atomizes water and mixes it with flowing air, and then transports the humidified air to the interior of the grain bin through the return pipe to ensure that the moisture of the grain is replenished. The condenser reduces the humidity in the air by condensation, which solves the problem of moisture loss in the grain and improves the controllability of the moisture in the grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the air circulation mechanism structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the grain warehouse structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall structural section of the utility model;

[0023] Figure 6 It is a schematic diagram of the explosion structure of the constant humidity device of the utility model.

[0024] In the figure: 1. grain silo; 2. air circulation mechanism; 3. constant humidity device; 11. air inlet; 12. air outlet; 13. dehumidification hole; 21. insect-proof box; 22. air inlet pipe; 23. first centrifugal fan; 24. return pipe; 25. second centrifugal fan; 26. exhaust pipe; 27. exhaust pipe; 28. dehumidification main pipe; 29. ​​third centrifugal fan; 31. constant humidity box; 32. atomizer; 33. condenser; 34. filling port; 35. return pipe; 36. water inlet pipe; 37. plasma purifier; 38. water tank. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 6 As shown, a grain local internal circulation ventilation device comprises a grain bin 1, an air circulation mechanism 2, and a constant humidity device 3; the air circulation mechanism 2 comprises an air inlet pipe 22, a first centrifugal fan 23, a return pipe 24, a second centrifugal fan 25, an exhaust pipe 26, an exhaust pipe 27, a dehumidification main pipe 28, and a third centrifugal fan 29; an insect-proof box 21 is installed at the bottom of the air circulation mechanism 2, the top of the insect-proof box 21 is fixedly sleeved with the air inlet pipe 22, one side of the air inlet pipe 22 is fixedly sleeved with the first centrifugal fan 23, one side of the air inlet pipe 22 is fixedly sleeved with the return pipe 24, and one side of the return pipe 24 is fixedly sleeved with the second centrifugal fan 25;

[0027] During operation, outdoor air enters through the insect-proof box 21, and pests are isolated and eliminated at the same time, driving the first centrifugal fan 23 to suck in outdoor air, and transport the air to the grain bin 1 through the air inlet pipe 22, so as to perform positive pressure ventilation on the interior of the grain bin 1.

[0028] Further, the constant humidity device 3 includes a constant humidity box 31, an atomizer 32 is fixedly connected to the interior of the constant humidity box 31, three condensing tubes 33 are fixedly connected to the interior of the constant humidity box 31, a return pipe 35 is fixedly connected to the bottom of the constant humidity box 31, a water tank 38 is fixedly connected to the other end of the return pipe 35, a plasma purifier 37 is fixedly connected to the inner wall of the water tank 38, a filling port 34 is fixedly connected to the bottom of the water tank 38, a water inlet pipe 36 is fixedly connected to the top of the water tank 38, and the atomizer 32 is fixedly connected to the other end of the water inlet pipe 36;

[0029] During operation, water is sucked into the atomizer 32 through the water inlet pipe 36, the atomizer 32 atomizes the water and mixes it with the flowing air, and then the humidified air is transported to the interior of the grain bin 1 through the return pipe 24 to ensure that the moisture of the grain is replenished.

[0030] Further, an air inlet 11 is provided on one side of the grain bin 1, and an air inlet pipe 22 is fixedly connected to the air inlet 11; an exhaust 12 is provided on one side of the grain bin 1, and an exhaust pipe 26 is fixedly connected to the exhaust 12; a dehumidification hole 13 is provided on one side of the grain bin 1, and a dehumidification main pipe 28 is fixedly connected to the dehumidification hole 13;

[0031] During operation, the positive and negative pressures inside the grain bin 1 are effectively controlled through the overall pipeline, so that the internal air pressure reaches a stable level.

[0032] Furthermore, three exhaust pipes 27 are fixedly connected inside the grain bin 1, and the exhaust pipes 27 are fixedly sleeved with a dehumidification main pipe 28, and a third centrifugal fan 29 is fixedly sleeved on one side of the dehumidification main pipe 28;

[0033] During operation, the moisture around the grain is effectively controlled through the air extraction pipe 27 to prevent the grain from becoming moldy and bacteria from growing.

[0034] Further, an insect-proof box 21 is fixedly connected to one side of the grain bin 1, a constant humidity box 31 is fixedly connected to one side of the grain bin 1, and a water tank 38 is fixedly connected to one side of the grain bin 1;

[0035] When working, the whole becomes stable through fixing.

[0036] Furthermore, a return pipe 24 is fixedly sleeved on one side of the constant humidity device 3, and an exhaust pipe 26 is fixedly sleeved on the top of the constant humidity device 3;

[0037] During operation, air flows into the interior of the constant humidity chamber 31 through the exhaust pipe 26 and the return pipe 24, so that the humidity in the return air can be adjusted.

[0038] Furthermore, a first centrifugal fan 23 is fixedly connected to one side of the grain silo 1 , a second centrifugal fan 25 is fixedly connected to one side of the grain silo 1 , and a third centrifugal fan 29 is fixedly connected to one side of the grain silo 1 .

[0039] When working, the machine body becomes stable by fixing, and prevents loosening to cause gaps in the sleeved pipes, so that pests fall into the grain bin 1.

[0040] Working principle: In the first embodiment, outdoor air enters through the insect-proof box 21, and pests are isolated and eliminated at the same time, and the first centrifugal fan 23 is driven to suck in outdoor air, and the air is transported to the grain bin 1 through the air inlet pipe 22, and the grain bin 1 is ventilated with positive pressure. When the temperature of the outdoor air is too high, the grain stored inside will deteriorate when it is sucked in, and the second centrifugal fan 25 is driven to stop the operation of the first centrifugal fan 23, and the exhaust pipe 26 will generate negative pressure in the grain bin 1, sucking the air inside, and returning the air to the second centrifugal fan 25. In the air intake pipe 22, the air is returned to the interior of the grain bin 1 to achieve internal circulation, thereby preventing the external space from being too high and causing the grain to deteriorate. At the same time, the first centrifugal fan 23 and the second centrifugal fan 25 can be driven at the same time to achieve internal and external circulation. Due to the backlog of grain, there will be too much moisture inside the grain, which will cause mildew. The third centrifugal fan 29 is driven to inhale the air accumulated in the grain through the exhaust pipe 27 around it. The inhaled humid air is discharged through the dehumidification main pipe 28. The moisture content of the grain is maintained by absorbing air to prevent the grain from becoming mildewed.

[0041] In the second embodiment, the air inside the grain bin 1 is sucked in through the second centrifugal fan 25. The air at this time will reach the interior of the constant humidity chamber 31 through the exhaust pipe 26. If the humidity is too low, the moisture of the grain will be lost, affecting the respiration of the grain. Water is sucked into the atomizer 32 through the water inlet pipe 36. The atomizer 32 atomizes the water and mixes it with the flowing air. The humidified air is then transported to the interior of the grain bin 1 through the return pipe 24 to ensure that the moisture of the grain is replenished. When the humidity is too high, the food will become moldy. The atomizer 32 stops working, and the condenser 33 reduces the humidity in the air by condensation. The condensed water flows back to the water tank 38 through the return pipe 35. The plasma purifier 37 inside the water tank 38 will purify the recovered water to prevent bacteria from growing.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A grain local internal circulation ventilation device, characterized in that: The invention comprises a grain bin (1), an air circulation mechanism (2), and a constant humidity device (3); the air circulation mechanism (2) comprises an air intake pipe (22), a first centrifugal fan (23), a return pipe (24), a second centrifugal fan (25), an exhaust pipe (26), an exhaust pipe (27), a dehumidification main pipe (28), and a third centrifugal fan (29); an insect-proof box (21) is installed at the bottom of the air circulation mechanism (2); the top of the insect-proof box (21) is fixedly sleeved with an air intake pipe (22); one side of the air intake pipe (22) is fixedly sleeved with the first centrifugal fan (23); one side of the air intake pipe (22) is fixedly sleeved with the return pipe (24); and one side of the return pipe (24) is fixedly sleeved with the second centrifugal fan (25).

2. A grain local internal circulation ventilation device according to claim 1, characterized in that: The constant humidity device (3) comprises a constant humidity box (31), an atomizer (32) is fixedly connected to the interior of the constant humidity box (31), three condensation tubes (33) are fixedly connected to the interior of the constant humidity box (31), a return pipe (35) is fixedly connected to the bottom of the constant humidity box (31), the other end of the return pipe (35) is fixedly connected to a water tank (38), the inner wall of the water tank (38) is fixedly connected to a plasma purifier (37), the bottom of the water tank (38) is fixedly connected to a filling port (34), the top of the water tank (38) is fixedly connected to a water inlet pipe (36), and the other end of the water inlet pipe (36) is fixedly connected to the atomizer (32).

3. A grain local internal circulation ventilation device according to claim 2, characterized in that: An air inlet (11) is provided on one side of the grain bin (1), and an air inlet pipe (22) is fixedly connected to the air inlet (11); an exhaust hole (12) is provided on one side of the grain bin (1), and an exhaust pipe (26) is fixedly connected to the exhaust hole (12); a dehumidification hole (13) is provided on one side of the grain bin (1), and a dehumidification main pipe (28) is fixedly connected to the dehumidification hole (13).

4. A grain local internal circulation ventilation device according to claim 3, characterized in that: The grain bin (1) is fixedly connected with three exhaust pipes (27) inside, the exhaust pipes (27) are fixedly sleeved with a dehumidification main pipe (28), and a third centrifugal fan (29) is fixedly sleeved on one side of the dehumidification main pipe (28).

5. A grain local internal circulation ventilation device according to claim 4, characterized in that: One side of the grain bin (1) is fixedly connected to an insect-proof box (21), one side of the grain bin (1) is fixedly connected to a constant humidity box (31), and one side of the grain bin (1) is fixedly connected to a water tank (38).

6. A grain local internal circulation ventilation device according to claim 5, characterized in that: A return pipe (24) is fixedly sleeved on one side of the constant humidity device (3), and an exhaust pipe (26) is fixedly sleeved on the top of the constant humidity device (3).

7. A grain local internal circulation ventilation device according to claim 5, characterized in that: A first centrifugal fan (23) is fixedly connected to one side of the grain bin (1), a second centrifugal fan (25) is fixedly connected to one side of the grain bin (1), and a third centrifugal fan (29) is fixedly connected to one side of the grain bin (1).

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