CN114246211A - Intelligent nitrogen gas-adjusting grain storage device and method - Google Patents
Intelligent nitrogen gas-adjusting grain storage device and method Download PDFInfo
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- CN114246211A CN114246211A CN202111646888.2A CN202111646888A CN114246211A CN 114246211 A CN114246211 A CN 114246211A CN 202111646888 A CN202111646888 A CN 202111646888A CN 114246211 A CN114246211 A CN 114246211A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 227
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 109
- 238000003860 storage Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 41
- 238000007599 discharging Methods 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 11
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 11
- 230000006978 adaptation Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 241000607479 Yersinia pestis Species 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B9/20—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
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Abstract
The invention belongs to the technical field of grain storage devices, and particularly relates to an intelligent nitrogen controlled-atmosphere grain storage device and method, aiming at the problem that an existing second nitrogen concentration detector is inconvenient to disassemble and overhaul after failure. The nitrogen concentration detector is compact in structure, reasonable in design and convenient and fast to operate, can be detached quickly for maintenance without using auxiliary tools, provides convenience for maintenance personnel, improves maintenance efficiency, and is convenient to popularize and use.
Description
Technical Field
The invention relates to the technical field of grain storage devices, in particular to an intelligent nitrogen controlled atmosphere grain storage device and method.
Background
China is the biggest world with great food production, storage and consumption. The food safety customs is a national plan. Grain storage safety is an important component of the national grain safety guarantee system. The grains are inevitably damaged by pests and mould fungi during the storage process, which leads to the quality reduction and the quantity reduction. The existing grain storage is mainly characterized in that the storage environment of a granary is changed by adopting air-conditioned grain storage, the living environment which is not beneficial to pests and mould is formed by changing the gas composition in the granary, the aerobic respiration of the grain is reduced, and the purposes of grain storage safety and aging delay are achieved.
The patent with publication number CN210492414U discloses a nitrogen gas is transferred and is stored up grain device, including the compressed air machine, the outlet duct of compressed air machine is connected with first filter, and the outlet duct of first filter is connected with cold machine of doing, and the outlet duct of cold machine of doing is connected with the second filter, and the outlet duct of second filter is connected with the air storage tank, and the outlet duct of air storage tank is connected with the nitrogen generator, and the outlet duct of nitrogen generator is connected with the nitrogen gas storage tank, and the outlet duct of nitrogen gas storage tank is connected with the precooler. But the second nitrogen gas concentration detector in the current grain storage device is generally fixed connection on detecting the mount table, and after the trouble, inconvenient the maintenance of tearing down to the influence fills the nitrogen progress.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an intelligent nitrogen gas controlled-atmosphere grain storage device and method.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent nitrogen gas-regulating grain storage device comprises a detection mounting table, wherein a nitrogen concentration detector is movably arranged at the top of the detection mounting table, two placing rods are symmetrically and fixedly connected to the bottom of the nitrogen concentration detector, limiting grooves are formed in the sides, away from each other, of the two placing rods, two cavities are formed in the detection mounting table, a diamond-shaped rod is fixedly connected between the top inner wall and the bottom inner wall of each cavity, a sliding pipe is sleeved on the diamond-shaped rod in a sliding mode, a rectangular plate is fixedly connected to the side, away from each other, of each sliding pipe, a matching groove is formed in the center of the top of the rectangular plate, a plurality of compression springs are uniformly and fixedly connected to the bottom of the rectangular plate at equal intervals, the bottom ends of the compression springs are fixedly connected to the bottom inner wall of each cavity, two mounting grooves are formed in the top of the detection mounting table and are respectively communicated with the two cavities, the two placing rods are respectively and movably mounted in the two mounting grooves, and two bottoms of shelving the pole match groove looks adaptation with two respectively, the top inner wall fixedly connected with U type frame of cavity, fixedly connected with violently manages between the both sides inner wall of U type frame, it is equipped with the sliding plate to violently overlap on the pipe, the equal fixedly connected with vertical bar in one side that two sliding plates are close to each other, and the one end that two vertical bars are close to each other respectively with two spacing groove looks adaptations, it is connected with the rotary rod to rotate between the both sides inner wall of cavity, fixed cover is equipped with gear and follower lever on the rotary rod, waist type inclined hole has been seted up on the follower lever, slidable mounting has the round piece in the waist type inclined hole, and round piece fixed connection is on the sliding plate, the bottom inner wall fixedly connected with solid piece of cavity.
Preferably, the inner wall of the bottom of the cavity is provided with a first groove, and a square block is arranged in the first groove in a sliding mode.
Preferably, one side of the solid block is rotatably connected with one end of a screw rod, the other end of the screw rod extends out of the detection mounting table, and the screw rod is fixedly connected with a rotating handle.
Preferably, the screw rod is provided with a movable sleeve in a threaded sleeve manner, and the movable sleeve is fixedly connected to the top of the square block.
Preferably, a toothed bar is fixedly connected to the top of the movable sleeve, and the toothed bar is meshed with the gear.
Preferably, the left side and the right side of the detection mounting table are both provided with a plurality of second grooves in an annular array by taking the screw rod as the center.
Preferably, a straight hole is formed in the left side of the rotating handle, an inserting rod is slidably mounted in the straight hole, and the inserting rod is matched with the second groove.
Preferably, the bottom of the inserted bar is fixedly connected with a stop block positioned between the rotating handle and the detection mounting table, and a return spring is fixedly connected between the stop block and the rotating handle.
An intelligent nitrogen gas-adjusting grain storage method comprises the following steps:
s1: and (3) air tightness detection: the air in the bin is extracted by the fan, so that the air pressure in the bin is quickly reduced, when the air pressure in the granary is reduced to-350 Pa, the fan is closed, the time required for reducing the air pressure in the bin from-300 Pa to-150 Pa is recorded, the air tightness is unqualified if the time is less than 3 minutes, the air tightness is qualified if the time is more than 3 minutes, and the nitrogen filling operation can be started if the air tightness is qualified;
s2: the intelligent nitrogen charging is divided into two modes of charging while discharging and charging after discharging, wherein the charging after discharging is to open a fan firstly to exhaust, close the fan when the pressure in the bin is reduced to-300 Pa, start nitrogen charging, close the nitrogen charging when the pressure in the bin reaches 50Pa, open the fan to start exhaust, close the fan when the pressure in the bin reaches-300 Pa, start nitrogen charging, circulate in such a way until the nitrogen concentration at eighty percent of detection points in the bin is more than ninety-eight percent, start gas circulation at the moment, judge whether the nitrogen concentration at all the detection points in the bin reaches more than ninety-eight percent after 2 hours of circulation, continue the charging after discharging if the nitrogen concentration does not reach, and finish the nitrogen charging if the nitrogen concentration reaches;
s3: the step of filling and discharging is to judge whether the air volume of the filled nitrogen is larger than the exhaust air distribution volume, if so, the fan is started to exhaust, the pressure is reduced to-300 Pa, then the nitrogen filling is started under the condition of not closing the fan, and then the nitrogen filling is closed to continue the exhaust after the pressure is increased to 50 Pa; if the exhaust air volume is larger than the nitrogen filling air volume, simultaneously starting the fan to exhaust and fill nitrogen, closing the exhaust fan after the pressure in the bin is reduced to-300 Pa, continuously filling nitrogen, starting the fan to exhaust when the pressure in the bin is increased to 50Pa, and circulating the steps.
In the intelligent nitrogen controlled atmosphere grain storage device and the method, when a nitrogen concentration detector fails, the inserted bar is pulled to drive the stop block fixedly connected to the bottom of the inserted bar to move and compress the return spring, when the inserted bar moves out of the second groove, the locking of the rotating handle is released, the rotating handle is rotated to rotate the screw rod, the rotation of the movable sleeve is limited due to the arrangement of the first groove and the square blocks, so that the movable sleeve can only horizontally move, the movable sleeve is sleeved on the screw rod due to the thread of the movable sleeve, the movable sleeve can be driven to horizontally move towards the direction of the solid block along with the rotation of the screw rod, the toothed bar fixedly connected to the top of the movable sleeve can be driven to horizontally move, the toothed bar is meshed with the gear, the gear can be driven to rotate, and the rotating bar and the follower bar can be driven to rotate due to the fixed connection relationship among the gear, the rotating bar and the follower bar, the sliding plate is sleeved on the transverse pipe in a sliding manner, so that the sliding plate can only horizontally move, and the straight bar and the round block can only horizontally move due to the fixed connection relationship among the sliding plate, the straight bar and the round block;
the sliding pipe is sleeved on the diamond-shaped rod in a sliding mode, so that the sliding pipe can only vertically move, the rectangular plate fixedly connected with the sliding pipe can only vertically move, the compression spring is in a compression state, the rectangular plate can be pushed to vertically move upwards, and the rectangular plate can be driven to move upwards and the nitrogen concentration detector can be driven to move upwards due to the connection relation between the rectangular plate and the nitrogen concentration detector, so that the nitrogen concentration detector with faults can be taken down for maintenance. The nitrogen concentration detector is compact in structure, reasonable in design and convenient and fast to operate, can be detached quickly for maintenance without using auxiliary tools, provides convenience for maintenance personnel, improves maintenance efficiency, and is convenient to popularize and use.
Drawings
FIG. 1 is a schematic structural view of an intelligent nitrogen controlled atmosphere grain storage device provided by the invention;
FIG. 2 is a schematic structural view of part A of FIG. 1 of an intelligent nitrogen controlled atmosphere grain storage device according to the present invention;
FIG. 3 is a schematic structural view of part B of FIG. 1 of an intelligent nitrogen controlled atmosphere grain storage device according to the present invention;
FIG. 4 is a schematic structural view of part C of the intelligent nitrogen controlled atmosphere grain storage device in FIG. 1;
fig. 5 is a partial structural perspective view of the intelligent nitrogen controlled atmosphere grain storage device in fig. 1.
In the figure: the device comprises a detection mounting table 1, a nitrogen concentration detector 2, a placing rod 3, a limiting groove 4, a cavity 5, a rhombic rod 6, a sliding pipe 7, a rectangular plate 8, a matching groove 9, a compression spring 10, a mounting groove 11, a U-shaped frame 12, a transverse pipe 13, a sliding plate 14, a straight bar 15, a rotating rod 16, a gear 17, a follower rod 18, a waist-shaped inclined hole 19, a round block 20, a solid block 21, a groove 22I, a square block 23, a spiral rod 24, a rotating handle 25, a moving sleeve 26, a toothed rod 27, a groove 28 II, a straight hole 29, an inserted rod 30, a stop block 31 and a return spring 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, an intelligent nitrogen gas-adjusting grain storage device comprises a detection mounting table 1, wherein a nitrogen concentration detector 2 is movably arranged at the top of the detection mounting table 1, two placing rods 3 are symmetrically and fixedly connected to the bottom of the nitrogen concentration detector 2, limiting grooves 4 are respectively formed in the sides, away from each other, of the two placing rods 3, two cavities 5 are formed in the detection mounting table 1, a diamond-shaped rod 6 is fixedly connected between the inner wall of the top and the inner wall of the bottom of each cavity 5, a sliding pipe 7 is slidably sleeved on the diamond-shaped rod 6, a rectangular plate 8 is fixedly connected to the side, away from each other, of each sliding pipe 7, a matching groove 9 is formed in the center position of the top of each rectangular plate 8, a plurality of compression springs 10 are uniformly and fixedly connected to the bottom of each rectangular plate 8 at equal intervals, the bottom ends of the plurality of compression springs 10 are fixedly connected to the inner wall of the bottom of each cavity 5, two mounting grooves 11 are formed in the top of the detection mounting table 1, the two mounting grooves 11 are respectively communicated with the two cavities 5, the two placing rods 3 are respectively movably mounted in the two mounting grooves 11, the bottom ends of the two placing rods 3 are respectively matched with the two matching grooves 9, the inner wall of the top of each cavity 5 is fixedly connected with a U-shaped frame 12, a transverse pipe 13 is fixedly connected between the inner walls of the two sides of each U-shaped frame 12, a sliding plate 14 is sleeved on the transverse pipe 13 in a sliding manner, one side, close to each other, of each sliding plate 14 is fixedly connected with a straight bar 15, one end, close to each other, of each straight bar 15 is respectively matched with the two limiting grooves 4, the two straight bars 15 can be respectively inserted into or moved out of the two limiting grooves 4, a rotating rod 16 is rotatably connected between the inner walls of the two sides of each cavity 5, a gear 17 and a follower rod 18 are fixedly sleeved on the rotating rod 16, the gear 17 can drive the rotating rod 16 and the follower rod 18 to rotate, and a waist-shaped inclined hole 19 is formed in the follower rod 18, a round block 20 is arranged in the waist-shaped inclined hole 19 in a sliding mode, the round block 20 can move in the waist-shaped inclined hole 19, the round block 20 is fixedly connected to the sliding plate 14, and a solid block 21 is fixedly connected to the inner wall of the bottom of the cavity 5.
Example two
In the invention, the first groove 22 is formed on the inner wall of the bottom of the cavity 5, the square block 23 is arranged in the first groove 22 in a sliding manner, and the square block 23 can only horizontally move in the first groove 22.
In the invention, one side of the solid block 21 is rotatably connected with one end of a screw rod 24, the other end of the screw rod 24 extends out of the detection mounting table 1, and a rotating handle 25 is fixedly connected, and the screw rod 24 can be driven by rotating the rotating handle 25.
In the invention, the screw rod 24 is threaded with the movable sleeve 26, the movable sleeve 26 is fixedly connected to the top of the block 23, and the screw rod 24 rotates to drive the movable sleeve 26 to move horizontally.
In the invention, the top of the movable sleeve 26 is fixedly connected with a toothed bar 27, the toothed bar 27 is meshed with the gear 17, and the movable sleeve 26 moves to drive the toothed bar 27 to move, so that the gear 17 is driven to rotate.
In the invention, a plurality of second grooves 28 are formed on the left side and the right side of the detection mounting table 1 in an annular array by taking the screw rod 24 as a center.
In the invention, the left side of the rotating handle 25 is provided with a straight hole 29, an inserting rod 30 is arranged in the straight hole 29 in a sliding manner, the inserting rod 30 is matched with the second groove 28, and the inserting rod 30 can be inserted into or moved out of the second groove 28.
In the invention, the bottom of the inserted link 30 is fixedly connected with a stopper 31 positioned between the rotating handle 25 and the detection mounting table 1, a return spring 32 is fixedly connected between the stopper 31 and the rotating handle 25, and the elastic restoring force of the return spring 32 can push the stopper 31 to move towards the direction of the detection mounting table 1.
An intelligent nitrogen gas-adjusting grain storage method comprises the following steps:
s1: and (3) air tightness detection: the air in the bin is extracted by the fan, so that the air pressure in the bin is quickly reduced, when the air pressure in the granary is reduced to-350 Pa, the fan is closed, the time required for reducing the air pressure in the bin from-300 Pa to-150 Pa is recorded, the air tightness is unqualified if the time is less than 3 minutes, the air tightness is qualified if the time is more than 3 minutes, and the nitrogen filling operation can be started if the air tightness is qualified;
s2: the intelligent nitrogen charging is divided into two modes of charging while discharging and charging after discharging, wherein the charging after discharging is to open a fan firstly to exhaust, close the fan when the pressure in the bin is reduced to-300 Pa, start nitrogen charging, close the nitrogen charging when the pressure in the bin reaches 50Pa, open the fan to start exhaust, close the fan when the pressure in the bin reaches-300 Pa, start nitrogen charging, circulate in such a way until the nitrogen concentration at eighty percent of detection points in the bin is more than ninety-eight percent, start gas circulation at the moment, judge whether the nitrogen concentration at all the detection points in the bin reaches more than ninety-eight percent after 2 hours of circulation, continue the charging after discharging if the nitrogen concentration does not reach, and finish the nitrogen charging if the nitrogen concentration reaches;
s3: the step of filling and discharging is to judge whether the air volume of the filled nitrogen is larger than the exhaust air distribution volume, if so, the fan is started to exhaust, the pressure is reduced to-300 Pa, then the nitrogen filling is started under the condition of not closing the fan, and then the nitrogen filling is closed to continue the exhaust after the pressure is increased to 50 Pa; if the exhaust air volume is larger than the nitrogen filling air volume, simultaneously starting the fan to exhaust and fill nitrogen, closing the exhaust fan after the pressure in the bin is reduced to-300 Pa, continuously filling nitrogen, starting the fan to exhaust when the pressure in the bin is increased to 50Pa, and circulating the steps.
EXAMPLE III
Referring to fig. 1-5, an intelligent nitrogen controlled atmosphere grain storage device comprises a detection mounting table 1, wherein a nitrogen concentration detector 2 is movably arranged at the top of the detection mounting table 1, two placing rods 3 are symmetrically welded at the bottom of the nitrogen concentration detector 2, limiting grooves 4 are respectively chiseled at the sides, far away from each other, of the two placing rods 3, two cavities 5 are chiseled on the detection mounting table 1, a diamond-shaped rod 6 is welded between the inner wall of the top and the inner wall of the bottom of each cavity 5, a sliding pipe 7 is slidably sleeved on the diamond-shaped rod 6, a rectangular plate 8 is welded at the side, far away from each other, of the two sliding pipes 7, a matching groove 9 is chiseled at the center position of the top of the rectangular plate 8, a plurality of compression springs 10 are uniformly welded at equal intervals at the bottom of the rectangular plate 8, the bottom ends of the compression springs 10 are all welded on the inner wall of the bottom of each cavity 5, two mounting grooves 11 are chiseled at the top of the detection mounting table 1, and the two mounting grooves 11 are respectively communicated with the two cavities 5, two shelve pole 3 respectively movable mounting in two mounting grooves 11, and two bottom of shelving pole 3 respectively with two matching groove 9 looks adaptations, the welding of the top inner wall of cavity 5 has U type frame 12, the welding has violently pipe 13 between the both sides inner wall of U type frame 12, it is equipped with runner 14 to violently overlap on pipe 13, straight strip 15 has all been welded to the one side that two runner 14 are close to each other, and the one end that two straight strips 15 are close to each other respectively with two spacing groove 4 looks adaptations, it is connected with rotary rod 16 to rotate between the both sides inner wall of cavity 5, fixed cover is equipped with gear 17 and follower rod 18 on the rotary rod 16, waist type inclined hole 19 has been dug on the follower rod 18, slidable mounting has circle piece 20 in waist type inclined hole 19, and circle piece 20 welds on runner 14, the bottom inner wall welding of cavity 5 has solid block 21.
In the invention, a first groove 22 is chiseled on the inner wall of the bottom of the cavity 5, and a square block 23 is arranged in the first groove 22 in a sliding way.
In the invention, one side of the solid block 21 is rotatably connected with one end of a screw rod 24, and the other end of the screw rod 24 extends out of the detection mounting table 1 and is welded with a rotating handle 25.
In the invention, the screw rod 24 is threaded with the movable sleeve 26, and the movable sleeve 26 is welded on the top of the block 23.
In the present invention, a rack bar 27 is welded to the top of the moving sleeve 26, and the rack bar 27 is engaged with the gear 17.
In the present invention, a plurality of second grooves 28 are bored in an annular array around the screw rod 24 on both the left and right sides of the inspection mounting table 1.
In the invention, a straight hole 29 is drilled at the left side of the rotating handle 25, an inserting rod 30 is slidably arranged in the straight hole 29, and the inserting rod 30 is matched with the second groove 28.
In the invention, a stop 31 positioned between the rotating handle 25 and the detection mounting table 1 is welded at the bottom of the inserted link 30, and a return spring 32 is welded between the stop 31 and the rotating handle 25.
An intelligent nitrogen gas-adjusting grain storage method comprises the following steps:
s1: and (3) air tightness detection: the air in the bin is extracted by the fan, so that the air pressure in the bin is quickly reduced, when the air pressure in the granary is reduced to-350 Pa, the fan is closed, the time required for reducing the air pressure in the bin from-300 Pa to-150 Pa is recorded, the air tightness is unqualified if the time is less than 3 minutes, the air tightness is qualified if the time is more than 3 minutes, and the nitrogen filling operation can be started if the air tightness is qualified;
s2: the intelligent nitrogen charging is divided into two modes of charging while discharging and charging after discharging, wherein the charging after discharging is to open a fan firstly to exhaust, close the fan when the pressure in the bin is reduced to-300 Pa, start nitrogen charging, close the nitrogen charging when the pressure in the bin reaches 50Pa, open the fan to start exhaust, close the fan when the pressure in the bin reaches-300 Pa, start nitrogen charging, circulate in such a way until the nitrogen concentration at eighty percent of detection points in the bin is more than ninety-eight percent, start gas circulation at the moment, judge whether the nitrogen concentration at all the detection points in the bin reaches more than ninety-eight percent after 2 hours of circulation, continue the charging after discharging if the nitrogen concentration does not reach, and finish the nitrogen charging if the nitrogen concentration reaches;
s3: the step of filling and discharging is to judge whether the air volume of the filled nitrogen is larger than the exhaust air distribution volume, if so, the fan is started to exhaust, the pressure is reduced to-300 Pa, then the nitrogen filling is started under the condition of not closing the fan, and then the nitrogen filling is closed to continue the exhaust after the pressure is increased to 50 Pa; if the exhaust air volume is larger than the nitrogen filling air volume, simultaneously starting the fan to exhaust and fill nitrogen, closing the exhaust fan after the pressure in the bin is reduced to-300 Pa, continuously filling nitrogen, starting the fan to exhaust when the pressure in the bin is increased to 50Pa, and circulating the steps.
1. In the invention, when the nitrogen concentration detector fails, the inserted bar 30 is pulled to drive the stop block 31 fixedly connected to the bottom of the inserted bar 30 to move and compress the return spring 32, when the inserted bar 30 moves out of the second groove 28, the locking of the rotating handle 25 is released, the rotating handle 25 is rotated to rotate the screw rod 24, the first groove 22 and the square block 23 are arranged to limit the rotation of the movable sleeve 26, so that the movable sleeve 26 can only horizontally move, and the movable sleeve 26 is sleeved on the screw rod 24 through threads, so that the movable sleeve 26 can be driven to horizontally move towards the solid block 21 along with the rotation of the screw rod 24, so that the toothed bar 27 fixedly connected to the top of the movable sleeve 26 can be driven to horizontally move, and the toothed bar 27 is meshed with the gear 17, so that the gear 17 can be driven to rotate;
2. the gear 17, the rotating rod 16 and the follower rod 18 are fixedly connected, so that the rotating rod 16 and the follower rod 18 can be driven to rotate, the sliding plate 14 is sleeved on the transverse pipe 13 in a sliding manner, the sliding plate 14 can only move horizontally, and the straight strip 15 and the round block 20 can only move horizontally due to the fixed connection among the sliding plate 14, the straight strip 15 and the round block 20, the round block 20 is slidably installed in the waist-shaped inclined hole 19, and the waist-shaped inclined hole 19 is formed in the follower rod 18, so that the round block 20 can be driven to move horizontally towards the direction far away from the laying rod 3 along with the rotation of the follower rod 18, the sliding plate 14 and the straight strip 15 are driven to move horizontally, and when the straight strip 15 moves out of the limiting groove 4, the locking of the laying rod 3 is released;
3. because of slide 7 slip cover establish on rhombus pole 6, so slide 7 can only vertical movement to make with slide 7 fixed connection's rectangular plate 8 can only vertical movement, be in compression state because of compression spring 10, so can promote the vertical rebound of rectangular plate 8, because of rectangular plate 8, shelve the relation of connection between pole 3 and the nitrogen gas concentration detector 2, so can drive and shelve pole 3 and the rebound of nitrogen gas concentration detector 2, thereby can take off the nitrogen gas concentration detector 2 of trouble and overhaul. The nitrogen concentration detector is compact in structure, reasonable in design and convenient and fast to operate, can be detached quickly for maintenance without using auxiliary tools, provides convenience for maintenance personnel, improves maintenance efficiency, and is convenient to popularize and use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. An intelligent nitrogen gas-conditioning grain storage device comprises a detection mounting table (1) and is characterized in that a nitrogen concentration detector (2) is movably arranged at the top of the detection mounting table (1), two shelving rods (3) are symmetrically and fixedly connected to the bottom of the nitrogen concentration detector (2), a limiting groove (4) is formed in one side, away from each other, of each shelving rod (3), two cavities (5) are formed in the detection mounting table (1), a diamond-shaped rod (6) is fixedly connected between the inner wall of the top and the inner wall of the bottom of each cavity (5), a sliding pipe (7) is slidably sleeved on each diamond-shaped rod (6), a rectangular plate (8) is fixedly connected to one side, away from each other, of each sliding pipe (7), matching grooves (9) are formed in the center of the top of each rectangular plate (8), and a plurality of compression springs (10) are uniformly and fixedly connected to the bottom of each rectangular plate (8) at equal intervals, the bottom ends of a plurality of compression springs (10) are fixedly connected to the inner wall of the bottom of the cavity (5), two mounting grooves (11) are formed in the top of the detection mounting platform (1), the two mounting grooves (11) are respectively communicated with the two cavities (5), two shelving rods (3) are respectively movably mounted in the two mounting grooves (11), the bottom ends of the two shelving rods (3) are respectively matched with the two matching grooves (9), the inner wall of the top of the cavity (5) is fixedly connected with a U-shaped frame (12), a transverse pipe (13) is fixedly connected between the inner walls of two sides of the U-shaped frame (12), sliding plates (14) are slidably sleeved on the transverse pipe (13), straight bars (15) are fixedly connected to one side of the two sliding plates (14) close to each other, one end of the two straight bars (15) close to each other is respectively matched with the two limiting grooves (4), and a rotating rod (16) is rotatably connected between the inner walls of two sides of the cavity (5), the fixed cover is equipped with gear (17) and follower rod (18) on rotary rod (16), has seted up waist type inclined hole (19) on follower rod (18), and slidable mounting has round block (20) in waist type inclined hole (19), and round block (20) fixed connection is on gliding board (14), and the bottom inner wall fixed connection of cavity (5) has solid block (21).
2. The intelligent nitrogen controlled atmosphere grain storage device as claimed in claim 1, wherein the inner wall of the bottom of the cavity (5) is provided with a first groove (22), and a square block (23) is slidably mounted in the first groove (22).
3. The intelligent nitrogen controlled atmosphere grain storage device according to claim 1, wherein one side of the solid block (21) is rotatably connected with one end of a screw rod (24), and the other end of the screw rod (24) extends out of the detection mounting table (1) and is fixedly connected with a rotating handle (25).
4. An intelligent nitrogen modified atmosphere grain storage device as claimed in claim 3, wherein the screw rod (24) is threaded with a moving sleeve (26), and the moving sleeve (26) is fixedly connected to the top of the block (23).
5. The intelligent nitrogen modified atmosphere grain storage device and method as claimed in claim 4, characterized in that a rack bar (27) is fixedly connected to the top of the moving sleeve (26), and the rack bar (27) is meshed with the gear (17).
6. The intelligent nitrogen controlled atmosphere grain storage device of claim 1, wherein the left side and the right side of the detection mounting table (1) are provided with a plurality of second grooves (28) in an annular array by taking the screw rod (24) as a center.
7. The intelligent nitrogen controlled atmosphere grain storage device of claim 3, wherein a straight hole (29) is formed in the left side of the rotating handle (25), an inserted bar (30) is slidably mounted in the straight hole (29), and the inserted bar (30) is matched with the second groove (28).
8. An intelligent nitrogen controlled atmosphere grain storage device as claimed in claim 7, wherein the bottom of the inserted link (30) is fixedly connected with a stop block (31) positioned between the rotating handle (25) and the detection mounting platform (1), and a return spring (32) is fixedly connected between the stop block (31) and the rotating handle (25).
9. An intelligent nitrogen gas-controlled grain storage method is characterized by comprising the following steps:
s1: and (3) air tightness detection: the air in the bin is extracted by the fan, so that the air pressure in the bin is quickly reduced, when the air pressure in the granary is reduced to-350 Pa, the fan is closed, the time required for reducing the air pressure in the bin from-300 Pa to-150 Pa is recorded, the air tightness is unqualified if the time is less than 3 minutes, the air tightness is qualified if the time is more than 3 minutes, and the nitrogen filling operation can be started if the air tightness is qualified;
s2: the intelligent nitrogen charging is divided into two modes of charging while discharging and charging after discharging, wherein the charging after discharging is to open a fan firstly to exhaust, close the fan when the pressure in the bin is reduced to-300 Pa, start nitrogen charging, close the nitrogen charging when the pressure in the bin reaches 50Pa, open the fan to start exhaust, close the fan when the pressure in the bin reaches-300 Pa, start nitrogen charging, circulate in such a way until the nitrogen concentration at eighty percent of detection points in the bin is more than ninety-eight percent, start gas circulation at the moment, judge whether the nitrogen concentration at all the detection points in the bin reaches more than ninety-eight percent after 2 hours of circulation, continue the charging after discharging if the nitrogen concentration does not reach, and finish the nitrogen charging if the nitrogen concentration reaches;
s3: the step of filling and discharging is to judge whether the air volume of the filled nitrogen is larger than the exhaust air distribution volume, if so, the fan is started to exhaust, the pressure is reduced to-300 Pa, then the nitrogen filling is started under the condition of not closing the fan, and then the nitrogen filling is closed to continue the exhaust after the pressure is increased to 50 Pa; if the exhaust air volume is larger than the nitrogen filling air volume, simultaneously starting the fan to exhaust and fill nitrogen, closing the exhaust fan after the pressure in the bin is reduced to-300 Pa, continuously filling nitrogen, starting the fan to exhaust when the pressure in the bin is increased to 50Pa, and circulating the steps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111646888.2A CN114246211A (en) | 2021-12-30 | 2021-12-30 | Intelligent nitrogen gas-adjusting grain storage device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111646888.2A CN114246211A (en) | 2021-12-30 | 2021-12-30 | Intelligent nitrogen gas-adjusting grain storage device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108669228A (en) * | 2018-04-27 | 2018-10-19 | 中储粮成都储藏研究院有限公司 | Nitrogen air-conditioning storing grain method |
| CN213174865U (en) * | 2020-07-31 | 2021-05-11 | 杨婕 | Cold and hot water temperature regulating equipment for building installation and construction |
| CN214093743U (en) * | 2020-12-30 | 2021-08-31 | 张瑜萍 | Environmental gas detection device |
| CN214955141U (en) * | 2021-07-21 | 2021-11-30 | 深圳市怀宇信息工程有限公司 | Double-frequency touch type human face entrance guard all-in-one machine |
| CN215111595U (en) * | 2021-06-21 | 2021-12-10 | 中汇天成环境科技股份有限公司 | Environmental monitoring supervisory equipment |
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2021
- 2021-12-30 CN CN202111646888.2A patent/CN114246211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108669228A (en) * | 2018-04-27 | 2018-10-19 | 中储粮成都储藏研究院有限公司 | Nitrogen air-conditioning storing grain method |
| CN213174865U (en) * | 2020-07-31 | 2021-05-11 | 杨婕 | Cold and hot water temperature regulating equipment for building installation and construction |
| CN214093743U (en) * | 2020-12-30 | 2021-08-31 | 张瑜萍 | Environmental gas detection device |
| CN215111595U (en) * | 2021-06-21 | 2021-12-10 | 中汇天成环境科技股份有限公司 | Environmental monitoring supervisory equipment |
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