Grain ventilating and cooling device

Abstract

The utility model discloses a grain ventilation cooling device which comprises a hot air box, an air draft box, a cold air box and a ventilation pipe, two layers of partition plates are fixedly arranged in the ventilation pipe, and the two layers of partition plates sequentially divide the ventilation pipe into a hot air duct, an air draft duct and a cold air duct from top to bottom. The hot air box, the air draft box and the cold air box communicate with the hot air channel, the air draft channel and the cold air channel through pipelines correspondingly, a plurality of ventilation holes are formed in the side walls of the hot air channel, the air draft channel and the cold air channel correspondingly, and a control mechanism for controlling the ventilation holes to be opened and closed is arranged in the ventilation pipe. The stepping motor is controlled to rotate through signals of the humidity sensor, ventilation holes in the air draft duct and the hot air duct at the sensor can be opened, grain near the ventilation pipe is dried, humidity is reduced, and mildew is prevented, the stepping motor is controlled to rotate through signals of the temperature sensor, and ventilation holes in the cold air duct and the hot air duct at the sensor can be opened. And the grains near the ventilation pipe can be cooled, so that the energy consumption is reduced, and the storage cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain storage, specifically is a grain ventilation cooling device. BACKGROUND

[0002] In the process of grain storage, respiration is necessary to maintain its own life activities, and respiration is a physiological phenomenon of inhaling oxygen and exhaling carbon dioxide, which is the basis of maintaining life activities. The characteristics of aerobic respiration are that organic matter is oxidized thoroughly, and more energy is released, which is necessary from the perspective of maintaining physiological activities, but it is not conducive to grain storage, which is one of the important reasons for grain heating caused by respiration. Therefore, during storage, aerobic respiration is artificially controlled to the lowest level, and the temperature is adjusted to make it not conducive to the appropriate respiration temperature of grain. The optimum condition for storing grain is dry, low temperature and oxygen deficiency. Only under such conditions, the respiration of seeds is the weakest, and the consumption of organic matter by seed respiration is the least. If the humidity is high, the temperature is high, and the oxygen is sufficient, the respiration of seeds is strong, and the organic nutrients stored in the seeds will be consumed in large quantities through the respiration of seeds.

[0003] The ventilation and cooling device for grain storage in the prior art can only ventilate and cool the grain in the granary, but cannot reduce the humidity, and the ventilation and cooling device will ventilate and cool the entire granary as long as it is started. Some areas of the granary meet the storage requirements, which will cause waste of resources and increase the cost of storage. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of grain ventilation cooling device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of grain ventilation cooling device, including hot air box, air extraction box, cold air box and ventilation pipe, two layers of baffle are fixedly arranged in the ventilation pipe, the ventilation pipe is sequentially separated into hot air duct, air extraction duct and cold air duct from top to bottom by the two layers of baffle, the hot air box, air extraction box, cold air box are communicated with hot air duct, air extraction duct and cold air duct respectively by pipeline, and the side wall of hot air duct, air extraction duct and cold air duct is provided with a plurality of ventilation holes.

[0007] The control mechanism for controlling the opening and closing of ventilation hole is arranged in the ventilation pipe.

[0008] Preferably, the control mechanism includes a baffle movably arranged at the ventilation hole, the baffle is fixedly connected with a connecting rod, one end of the connecting rod away from the baffle is fixedly connected with a gear one, the gear one is rotatably arranged on the side wall of the ventilation pipe, and the side wall of the ventilation pipe is provided with a control unit for controlling the rotation of the baffle.

[0009] Preferably, the control unit comprises a rotating main shaft inserted in the sidewall of the air duct, the main shaft is fixedly provided with gear two and gear three inside and outside the air duct respectively, the gear two is engaged with gear one in the air duct, the sidewall of the hot air duct and the cold air duct is rotatably inserted with driven shaft one and driven shaft two respectively, the driven shaft one is fixedly provided with gear one with gear one in the hot air duct inside the hot air duct, the driven shaft one is fixedly provided with gear four engaged with gear three outside the hot air duct, the driven shaft two is fixedly provided with gear two engaged with gear one in the cold air duct inside the cold air duct, the driven shaft two is fixedly provided with gear five engaged with gear three outside the cold air duct, the sidewall of the ventilation pipe is fixedly provided with gear housing covering gear three, gear four and gear five, and the gear housing is fixedly provided with a stepping motor fixedly connected with the main shaft.

[0010] Preferably, the ventilation pipe is communicated with a ventilation pipe at the ventilation hole, and a plurality of ventilation holes are formed in the ventilation pipe.

[0011] Preferably, the ventilation pipe is fixedly provided with a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are electrically connected with the stepping motor.

[0012] Preferably, the air duct and the hot air box are communicated through the connecting pipe, and the ventilation holes on the hot air duct, the air duct and the cold air duct are vertically arranged.

[0013] Preferably, the connecting rod in the hot air duct and the cold air duct is fixedly connected with a reset spring fixedly connected with the partition plate, and the hot air duct and the cold air duct are fixedly provided with a limiting rod on the side close to the reset spring, and the baffle is arranged in the ventilation pipe.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The humidity sensor signal controls the rotation of the stepping motor, the ventilation holes in the air duct and the hot air duct at the sensor are opened, the hot air box can make hot air pass through the ventilation hole in the hot air pipe and finally blow out from the ventilation hole of the ventilation pipe, the ventilation pipe can be used for drying the grain nearby, reducing the humidity and preventing mildew, at the same time, the air duct connected with the ventilation pipe of the air duct can suck hot air into the hot air box for recycling, preventing the temperature of the grain from being too high and reducing energy consumption.

[0016] 2. The temperature sensor signal controls the rotation of the stepper motor, which can open the ventilation holes in the cold air duct and the hot air duct at the sensor, the cold air box can pass the cold air from the ventilation holes in the cold air pipe, and finally blow out from the air holes of the air pipe, which can cool the grain near the air pipe, and the hot air sucked into the air pipe through the air duct of the exhaust box, so as to speed up the ventilation and cooling speed of the grain, and the hot air sucked in is still circulated in the hot air box.

[0017] 3. The device can set multiple control mechanisms on the ventilation pipe according to the size and height of the grain depot, which can realize full coverage of the grain depot, and the air pipe covers each position of the grain depot, so that the sensor also covers every place in the grain depot, when there is a need for ventilation cooling or humidity reduction, the sensor can signal control the stepper motor to realize ventilation cooling or humidity reduction, and the ventilation holes in the place where ventilation cooling or humidity reduction is not needed are closed, so that the regional ventilation cooling or humidity reduction of the grain depot can be realized, thereby saving energy consumption and reducing storage cost. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 It is a partial structure schematic diagram of the ventilation pipe of the utility model;

[0020] Figure 3 It is an internal structure schematic diagram of the ventilation pipe of the utility model;

[0021] Figure 4 It is a structure schematic diagram of the control mechanism of the utility model;

[0022] Figure 5 It is a structure schematic diagram of the air pipe of the utility model.

[0023] In the drawing: 1, hot air box; 2, exhaust box; 3, cold air box; 4, ventilation pipe; 5, partition; 6, hot air duct; 7, exhaust duct; 8, cold air duct; 9, ventilation hole; 10, baffle; 11, connecting rod; 12, gear one; 13, driving shaft; 14, gear two; 15, gear three; 16, driven shaft one; 17, driven shaft two; 18, gear with missing teeth one; 19, gear four; 20, gear with missing teeth two; 21, gear five; 22, gear housing; 23, stepper motor; 24, air pipe; 25, air hole; 26, temperature sensor; 27, humidity sensor; 28, pipeline; 29, connecting pipe; 30, reset spring; 31, limiting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0025] Please refer to Figures 1-5 The present utility model provides a technical scheme:

[0026] Embodiment one:

[0027] A grain ventilation cooling device, including hot air tank 1, exhaust box 2, cold air tank 3 and ventilation pipe 4, hot air tank 1 can produce hot air, cold air tank 3 can produce cold air, exhaust box 2 can inhale, all are prior art and are familiar to those skilled in the art, this place does not repeat, ventilation pipe 4 inside fixedly set two layers of baffle 5, two layers of baffle 5 will ventilation pipe 4 from top to bottom be separated into hot air pipe 6, exhaust pipe 7 and cold air pipe 8 in turn, hot air tank 1, exhaust box 2, cold air tank 3 are communicated with hot air pipe 6, exhaust pipe 7 and cold air pipe 8 respectively through pipeline 28, exhaust box 2 and hot air tank 1 are communicated through connecting pipe 29, the lateral wall of hot air pipe 6, exhaust pipe 7 and cold air pipe 8 is provided with a plurality of ventilation holes 9, the ventilation hole 9 on hot air pipe 6, exhaust pipe 7 and cold air pipe 8 is vertically arranged, ventilation pipe 4 is communicated with air pipe 24 at ventilation hole 9, a plurality of air holes 25 are formed in air pipe 24, hot air tank 1 can send hot air into hot air pipe 6 through pipeline 28, and the hot air is sent into air pipe 24 through ventilation hole 9, and finally discharged from air hole 25, cold air tank 3 can send cold air into cold air pipe 8 through pipeline 28, and the cold air is sent into air pipe 24 through ventilation hole 9, and finally discharged from air hole 25, exhaust box 2 can inhale hot air from air hole 25 in grain, enter exhaust pipe 7 through air pipe 24 and ventilation hole 9, and finally enter exhaust box 2 from pipeline 28 and enter hot air tank 1 through connecting pipe 29 for recycling.

[0028] Temperature sensor 26 and humidity sensor 27 are fixedly arranged on air pipe 24, and temperature sensor 26 and humidity sensor 27 are electrically connected with step motor 23, and temperature sensor 26 and humidity sensor 27 can signal control the forward rotation and reverse rotation of step motor 23.

[0029] Embodiment two:

[0030] The control mechanism for controlling the opening and closing of the ventilation hole 9 is arranged inside the ventilation pipe 4, and the control mechanism comprises a baffle 10 movably arranged at the ventilation hole 9, the baffle 10 is fixedly connected with a connecting rod 11, the connecting rod 11 is fixedly connected with a gear one 12 at the end away from the baffle 10, the gear one 12 is rotatably arranged on the side wall of the ventilation pipe 4, the connecting rod 11 in the hot air duct 6 and the cold air duct 8 is fixedly connected with a reset spring 30 fixedly connected with the partition plate 5, the hot air duct 6 and the cold air duct 8 are fixedly provided with a limiting rod 31 on the side close to the reset spring 30, the baffle 10 is arranged inside the ventilation pipe 4, as shown in Figure 3 When the gear one 12 is rotated by external force, the connecting rod 11 and the baffle 10 will be rotated, and due to the arrangement of the reset spring 30 and the limiting rod 31 in the hot air duct 6 and the cold air duct 8, the gear one 12 and the baffle 10 in the hot air duct 6 can only rotate counterclockwise, and the gear one 12 and the baffle 10 in the cold air duct 8 can only rotate clockwise, and when the gear one 12 in the hot air duct 6 and the cold air duct 8 is not subjected to external force, the reset spring 30 will reset the baffle 10 to block the ventilation hole 9.

[0031] Example three:

[0032] A control unit for controlling the rotation of the baffle 10 is arranged on the side wall of the ventilation pipe 4, and the control unit comprises a driving shaft 13 rotatably inserted in the side wall of the exhaust air duct 7, the driving shaft 13 is fixedly provided with a gear two 14 and a gear three 15 inside and outside the exhaust air duct 7 respectively, the gear two 14 is engaged with the gear one 12 in the exhaust air duct 7, a driven shaft one 16 and a driven shaft two 17 are rotatably inserted in the side walls of the hot air duct 6 and the cold air duct 8 respectively, the driven shaft one 16 is fixedly provided with a gear one 18 engaged with the gear one 12 in the hot air duct 6 inside the hot air duct 6, the driven shaft one 16 is fixedly provided with a gear four 19 engaged with the gear three 15 outside the hot air duct 6, the driven shaft two 17 is fixedly provided with a gear two 20 engaged with the gear one 12 in the cold air duct 8 inside the cold air duct 8, the driven shaft two 17 is fixedly provided with a gear five 21 engaged with the gear three 15 outside the cold air duct 8, the gear three 15, the gear four 19 and the gear five 21 are covered by a gear housing 22 fixedly arranged on the side wall of the ventilation pipe 4, and the gear housing 22 is fixedly provided with a stepping motor 23 fixedly connected with the driving shaft 13.

[0033] As Figure 4As shown, when the humidity sensor 27 detects that the humidity exceeds the set threshold, it will signal the stepper motor 23 to rotate counterclockwise by a certain angle and then stop. Gear 24 and Gear 35 will then rotate counterclockwise. Gear 24 will cause Gear 12 in the exhaust duct 7 to rotate clockwise, opening the ventilation hole 9 in the exhaust duct 7. Gear 315 will cause Gear 419, Gear 521, Missing Gear 18, and Missing Gear 20 to rotate clockwise. Missing Gear 18 will cause Gear 12 in the hot air duct 6 to rotate counterclockwise, opening the ventilation hole 9 in the hot air duct 6. Missing Gear 20... Because of the missing tooth, the gear 12 in the cold air duct 8 cannot be rotated when rotated clockwise, so the ventilation hole 9 in the cold air duct 8 cannot be opened. When the humidity sensor 27 senses that the humidity at this location has dropped from high to the set threshold, it will signal to control the stepper motor 23 to rotate clockwise to stop. The ventilation hole 9 in the hot air duct 6 and the exhaust duct 7 will be blocked by the baffle 10. If the humidity sensor 27 senses that the humidity at this location is always below the threshold, it will not signal to control the stepper motor 23 to rotate clockwise. It will only signal to control the stepper motor 23 to rotate clockwise when the humidity drops from above the threshold to below the threshold.

[0034] like Figure 4 As shown, when the temperature sensor 26 detects that the temperature exceeds the set threshold, it will signal the stepper motor 23 to rotate clockwise by a certain angle and then stop. Gear 2 14 and Gear 3 15 will then rotate clockwise. Gear 2 14 will cause Gear 1 12 in the exhaust duct 7 to rotate counterclockwise, opening the ventilation hole 9 in the exhaust duct 7. Gear 3 15 will cause Gear 4 19, Gear 5 21, Missing Gear 1 18, and Missing Gear 2 20 to rotate counterclockwise. Missing Gear 2 20 will cause Gear 1 12 in the cold air duct 8 to rotate clockwise, opening the ventilation hole 9 in the cold air duct 8. Missing Gear 1 1... 8. Due to the missing tooth, the gear 12 in the hot air duct 6 cannot be rotated when rotated counterclockwise, so the ventilation hole 9 in the hot air duct 6 cannot be opened. When the temperature sensor 26 senses that the temperature at this location has dropped from high to the set threshold, it will signal the stepper motor 23 to rotate counterclockwise to stop. The ventilation hole 9 in the cold air duct 8 and the exhaust duct 7 will be blocked by the baffle 10. If the temperature sensor 26 senses that the temperature at this location is always below the threshold, it will not signal the stepper motor 23 to rotate counterclockwise. It will only signal the stepper motor 23 to rotate counterclockwise when the temperature drops from above the threshold to below the threshold.

[0035] The humidity sensor 27 has a higher priority than the temperature sensor 26. When both the humidity sensor 27 and the temperature sensor 26 exceed the threshold, the humidity sensor 27 controls the stepper motor 23 first. After the stepper motor 23 recovers, the temperature sensor 26 controls the stepper motor 23. In other words, the humidity sensor 27 controls the stepper motor 23 before the temperature sensor 26, and the temperature sensor 26 cannot intervene.

[0036] Working principle: open hot air tank 1, exhaust air tank 2 and cold air tank 3, when the humidity sensor 27 senses that the humidity exceeds the set threshold, then the signal control stepper motor 23 counterclockwise rotation a certain angle and stop, then gear two 14 and gear three 15 also counterclockwise rotation, then make gear one 12 in exhaust air duct 7 clockwise rotation, so as to open the air vent 9 in exhaust air duct 7, gear three 15 will promote gear four 19, gear five 21, gear one 18 and gear two 20 clockwise rotation, so as to open the air vent 9 in hot air duct 6, while the air vent 9 in cold air duct 8 can not be opened, then hot air tank 1 can blow hot air to the place, while the exhaust air tank 2 can absorb the excess heat and send to the hot air tank 1 for recycling.

[0037] When the humidity sensor 27 senses that the humidity from high to the set threshold, then the signal control stepper motor 23 clockwise rotation and stop, the air vent 9 in hot air duct 6 and exhaust air duct 7 will be blocked by the baffle 10, then stop drying.

[0038] When the temperature sensor 26 senses that the temperature exceeds the set threshold, then the signal control stepper motor 23 clockwise rotation a certain angle and stop, then gear two 14 and gear three 15 clockwise rotation, then promote gear one 12 in exhaust air duct 7 counterclockwise rotation, so as to open the air vent 9 in exhaust air duct 7, gear three 15 will promote gear four 19, gear five 21, gear one 18 and gear two 20 counterclockwise rotation, so as to open the air vent 9 in cold air duct 8, while the air vent 9 in hot air duct 6 can not be opened, then cold air tank 3 can blow cold air to the place, while the exhaust air tank 2 can absorb the heat and send to the hot air tank 1 for recycling.

[0039] When the temperature sensor 26 senses that the temperature from high to the set threshold, then the signal control stepper motor 23 counterclockwise rotation and stop, the air vent 9 in cold air duct 8 and exhaust air duct 7 will be blocked by the baffle 10, then stop cooling.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and principles of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A grain ventilation cooling device, comprising a hot air box (1), an air suction box (2), a cold air box (3) and a ventilation pipe (4), characterized in that: The ventilation pipe (4) is internally fixedly provided with two layers of partitions (5), which sequentially divide the ventilation pipe (4) into a hot air channel (6), an air extraction channel (7) and a cold air channel (8) from top to bottom, the hot air box (1), the air extraction box (2) and the cold air box (3) are communicated with the hot air channel (6), the air extraction channel (7) and the cold air channel (8) through pipelines (28), and the side walls of the hot air channel (6), the air extraction channel (7) and the cold air channel (8) are provided with a plurality of ventilation holes (9). The ventilation pipe (4) is internally provided with a control mechanism for controlling the opening and closing of the ventilation holes (9).

2. The grain ventilation cooling device according to claim 1, characterized in that: The control mechanism comprises a baffle (10) movably arranged at the ventilation hole (9), the baffle (10) is fixedly connected with a connecting rod (11), one end of the connecting rod (11) away from the baffle (10) is fixedly connected with a gear one (12), the gear one (12) is rotatably arranged on the side wall of the ventilation pipe (4), and the side wall of the ventilation pipe (4) is provided with a control unit for controlling the rotation of the baffle (10).

3. The grain aeration cooling device of claim 2, wherein: The control unit comprises a driving shaft (13) rotatably inserted in the side wall of the air extraction channel (7), the driving shaft (13) is fixedly provided with a gear two (14) and a gear three (15) inside and outside the air extraction channel (7) respectively, the gear two (14) is engaged with the gear one (12) in the air extraction channel (7), a driven shaft one (16) and a driven shaft two (17) are rotatably inserted in the side walls of the hot air channel (6) and the cold air channel (8) respectively, the driven shaft one (16) is fixedly provided with a gear one (12) engaged with the gear one (12) in the hot air channel (6) inside the hot air channel (6), the driven shaft one (16) is fixedly provided with a gear four (19) engaged with the gear three (15) outside the hot air channel (6), the driven shaft two (17) is fixedly provided with a gear two (20) engaged with the gear one (12) in the cold air channel (8) inside the cold air channel (8), the driven shaft two (17) is fixedly provided with a gear five (21) engaged with the gear three (15) outside the cold air channel (8), and the side wall of the ventilation pipe (4) is fixedly provided with a gear housing (22) covering the gear three (15), the gear four (19) and the gear five (21), and the gear housing (22) is fixedly provided with a stepping motor (23) fixedly connected with the driving shaft (13).

4. The grain aeration cooling device of claim 1, wherein: The ventilation pipe (4) is communicated with an air pipe (24) at the ventilation hole (9), and the air pipe (24) is provided with a plurality of air holes (25).

5. The grain aeration cooling apparatus of claim 4, wherein: The air pipe (24) is fixedly provided with a temperature sensor (26) and a humidity sensor (27), and the temperature sensor (26) and the humidity sensor (27) are electrically connected with the stepping motor (23).

6. The grain aeration cooling system of claim 1, wherein: The air extraction box (2) and the hot air box (1) are communicated through a connecting pipe (29), and the ventilation holes (9) on the hot air channel (6), the air extraction channel (7) and the cold air channel (8) are vertically arranged.

7. The grain aeration cooling system of claim 2, wherein: The connecting rod (11) in the hot air duct (6) and the cold air duct (8) is fixedly connected with the reset spring (30) fixedly connected with the partition plate (5), the hot air duct (6) and the cold air duct (8) are fixedly provided with the limiting rod (31) on the side of the connecting rod (11) close to the reset spring (30), and the baffle (10) is arranged in the ventilation pipe (4).

Images