CN108663362B - Agricultural product detection system and detection method thereof - Google Patents
Agricultural product detection system and detection method thereof Download PDFInfo
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- CN108663362B CN108663362B CN201810556798.6A CN201810556798A CN108663362B CN 108663362 B CN108663362 B CN 108663362B CN 201810556798 A CN201810556798 A CN 201810556798A CN 108663362 B CN108663362 B CN 108663362B
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 163
- 239000012153 distilled water Substances 0.000 claims abstract description 76
- 238000003860 storage Methods 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000000447 pesticide residue Substances 0.000 claims abstract description 36
- 238000005070 sampling Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 24
- 241000190070 Sarracenia purpurea Species 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 13
- 230000001133 acceleration Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 238000009991 scouring Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 235000012736 patent blue V Nutrition 0.000 claims description 3
- 239000000575 pesticide Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 2
- 230000007547 defect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
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- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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Abstract
The invention discloses an agricultural product detection system and a detection method thereof, wherein the agricultural product detection system comprises a water vapor generation device, a water vapor liquefaction collection device, an agricultural product stirring and sampling device, a liquid to be detected temporary storage dropping device and a distilled water temporary storage dropping device; the water vapor generating device is connected with the water vapor liquefying and collecting device through a water vapor guide pipe; the steam liquefaction collection device's distilled water exhanst outlet is connected with the double-pass pipe, one of them discharge pipe mouth of double-pass pipe is passed through the distilled water exhanst pipe and is stored dropping device with the distilled water and be connected, another discharge pipe mouth of double-pass pipe is located agricultural product stirring sampling device directly over, and agricultural product stirring sampling device through waiting to detect the liquid discharge pipe and wait to detect the liquid dropping device connection of keeping in. The agricultural product detection system and the detection method thereof provided by the invention can be used for rapidly detecting the pesticide residue on the surface of an agricultural product, and are high in detection accuracy and convenient to popularize.
Description
Technical Field
The invention belongs to the technical field of agricultural product detection, and particularly relates to an agricultural product detection system and a detection method thereof.
Background
Agricultural product has important effect in basic life, and the agricultural product that utilizes the big-arch shelter to plant is mostly higher to its security requirement, so need carry out pesticide residue's detection before selling or eating to ensure the security, the most basic detection adopts surface detection method moreover mostly, because can not cause the damage to agricultural product, the device that present agricultural product surface pesticide residue detected has following defect:
the detection is single, and the detection is not suitable for detecting large-batch agricultural products;
and secondly, the detection needs to use distilled water, the distilled water does not have the function of manufacturing distilled water, if the distilled water is completely purchased, the detection investment cost is increased, the long-term development is not facilitated, and particularly, a grower who is engaged in agricultural product planting for a long time is provided.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an agricultural product detection system and a detection method thereof, which can effectively overcome two defects in the background art and are convenient for large-scale popularization and use.
The technical scheme is as follows: in order to achieve the purpose, the agricultural product detection system comprises a water vapor generation device, a water vapor liquefaction collection device, an agricultural product stirring and sampling device, a liquid to be detected temporary storage dropping device and a distilled water temporary storage dropping device; the water vapor generating device is connected with the water vapor liquefying and collecting device through a water vapor guide pipe; the steam liquefaction collection device's distilled water exhanst outlet is connected with the double-pass pipe, one of them discharge pipe mouth of double-pass pipe is passed through the distilled water exhanst pipe and is stored dropping device with the distilled water and be connected, another discharge pipe mouth of double-pass pipe is located agricultural product stirring sampling device directly over, and agricultural product stirring sampling device through waiting to detect the liquid discharge pipe and wait to detect the liquid dropping device connection of keeping in.
Further, the water vapor generating device comprises a microwave heating container and a water cup arranged in the microwave heating container; the microwave heating container is characterized in that a clear water inlet pipe is communicated and arranged at the upper part of the water cup, a clear water outlet pipe is communicated and arranged at the bottom of the water cup, the clear water inlet pipe and the clear water outlet pipe both penetrate through the side wall of the microwave heating container and extend to the outside of the microwave heating container, a first valve is arranged on the clear water inlet pipe, a second valve is arranged on the clear water outlet pipe, and a clear water pouring funnel is arranged at the pipe orifice of the clear water inlet pipe.
Furthermore, the water vapor liquefaction collecting device comprises a cooling box and a distilled water collecting cover, the side box wall of the cooling box is of a double-layer structure, an interlayer of the double-layer structure is filled with crushed ice blocks, a cooling cavity of the cooling box is communicated with the inner top of the water cup through a water vapor guide pipe, and a cooling acceleration structure is arranged in the cooling cavity of the cooling box; the cover is collected to the distilled water and connects the inner tank wall lower limb that sets up at the cooler bin, the narrowing mouth that the cover was collected to the distilled water is provided with the bi-pass pipe, the bi-pass pipe includes vertical pipe and horizontal pipe, be provided with the third valve on the vertical pipe, and vertical intraduct is provided with the sponge.
Further, the inner side box wall of the cooling box and the cooling acceleration structure) are both made of iron materials, and the outer side box wall of the cooling box is made of heat-insulating materials;
the cooling acceleration structure comprises a main connecting pipe and a plurality of connecting blades which are of an integral structure, the connecting blades are distributed outside the main connecting pipe in a circumferential array manner, and the blade ends of the connecting blades are fixedly connected with the inner side box wall of the cooling box;
the connecting leaf includes a plurality of connecting plates and a plurality of vice connecting pipe of integrative structure, the connecting plate is regular setting in turn with vice connecting pipe.
Further, agricultural product stirring sampling device is including setting up the agitator tank under vertical pipe delivery port and setting up the drive rabbling mechanism in the agitator tank, inside isolation frame and the division board of being provided with of agitator tank, keep apart the concentric last face that sets up at the division board of frame, drive rabbling mechanism's rotatory stirring position is located the isolation frame, drive rabbling mechanism's driving motor is located the space between the interior bottom of the case of division board and agitator tank.
Furthermore, the isolation frame comprises a cylinder, a plurality of groups of strip hole groups are circumferentially distributed on the cylinder body of the cylinder, each group of strip hole groups comprises a plurality of strip holes which are uniformly arranged, and the shape of each strip hole is arc-shaped and is matched with the outline of the cylinder body of the cylinder.
The liquid dropping device for temporary storage of the liquid to be detected comprises a temporary storage box, a diversion dropper, an elastic pulling mechanism and a pressure balance pipe, wherein the temporary storage box of the liquid dropping device for temporary storage of the liquid to be detected is communicated with the stirring box through a liquid discharging pipe to be detected, and a fourth valve is arranged on the liquid discharging pipe to be detected; the diversion dropper is arranged at the bottom of the temporary storage box in a conduction manner; the elastic pulling mechanism comprises a sliding rod, a baffle, a hand-pulling plate and a spring, the sliding rod penetrates through the top of the temporary storage box and is arranged in a sliding fit manner with the top of the temporary storage box, the baffle is arranged at the rod end of the sliding rod, which is positioned in the temporary storage box, the hand-pulling plate is arranged at the rod end of the sliding rod, which is positioned outside the temporary storage box, the spring is sleeved on the rod part of the sliding rod, which is positioned between the hand-pulling plate and the temporary storage box, and the spring rebounds to pull the baffle to block a conduction opening between the diversion dropper and the temporary storage box; the pressure balance pipe is arranged at the top of the temporary storage box, and the interior of the temporary storage box is communicated with the outside through the pressure balance pipe.
Further, the dropping liquid device of keeping in of distilled water is the same with the dropping liquid device structure of keeping in of liquid of waiting to be measured, and distilled water keeps in the case of keeping in of dropping liquid device and passes through distilled water eduction pipe and horizontal pipe intercommunication, be provided with the fifth valve on the distilled water eduction pipe.
Further, the agricultural product pesticide residue rapid detection device also comprises an agricultural product pesticide residue rapid detection card and a constant temperature box for detecting heat preservation.
A detection method of an agricultural product detection system comprises the following specific steps:
the method comprises the following steps: opening the first valve, pouring clear water from the clear water into the funnel and pouring the clear water into the water cup, and then closing the first valve;
step two: the microwave heating container is electrified for heating, water in the water cup is gasified into water vapor, the water vapor enters the cooling box through the water vapor guide pipe to be cooled and liquefied into distilled water, at the moment, the third valve and the fifth valve are opened simultaneously, a part of the distilled water falls into the stirring box, a part of the distilled water flows into the temporary storage box of the distilled water temporary storage dropping device through the distilled water discharge pipe, after a proper amount of distilled water is stored in the temporary storage box, the fifth valve is closed, the distilled water continuously falls into the stirring box, after a proper amount of distilled water is in the stirring box, the microwave heating container is powered off, and the third valve is closed simultaneously;
step three: putting the agricultural products into a scouring area between the inner box wall of the stirring box and the outer cylinder wall of the cylinder, starting a driving motor to scour the surfaces of the agricultural products, after scouring is finished, closing the driving motor to form a liquid to be tested, opening a fourth valve, enabling the liquid to be tested to flow into a temporary storage box of a liquid to be tested temporary storage dropping device through a liquid to be tested discharge pipe, and closing the fourth valve after a proper amount of liquid to be tested flows into the temporary storage box of the liquid to be tested temporary storage;
step four: taking a pesticide residue quick measuring card, pulling a hand pulling plate by water, enabling the liquid to be measured to flow into a diversion dropper from a temporary storage box of the liquid temporary storage dropping device to be measured, dropping the liquid to be measured on a white medicine tablet, and simultaneously taking a pesticide residue quick measuring card, dropping the distilled water in the temporary storage box of the distilled water temporary storage dropping device on the white medicine tablet in the same way to be used as a contrast;
step five: putting two pesticide residue rapid measuring cards into a constant temperature box for pre-reaction for ten minutes, and adjusting the temperature in the constant temperature box to 37 ℃;
step six: after the pre-reaction is finished, the pesticide residue rapid test card is folded in half, and the temperature is kept constant in a thermostat for three minutes, so that the red tablets and the white tablets are overlapped and react;
step seven: and comparing the two pesticide residue quick test cards, wherein the condition that the white pesticide does not change into blue is a strong positive result, which indicates that the pesticide residue is higher, the condition that the light blue is a weak positive result, which indicates that the pesticide residue is relatively lower, and the pesticide residue is changed into sky blue or is the same as the pesticide residue quick test card which is compared, and the result is a negative result.
Has the advantages that: the agricultural product detection system and the detection method thereof have the following beneficial effects:
(1) the detection device is convenient to use, can be suitable for detecting pesticide residues on the surfaces of large-batch agricultural products, and is beneficial to large-scale popularization;
(2) the device has the function of producing distilled water, does not need to be purchased additionally, reduces the cost of detection investment, is particularly suitable for growers engaged in agricultural product planting for a long time, and is considerable for long-term development.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the cooling acceleration structure;
FIG. 3 is a top view of a cooling accelerating structure;
fig. 4 is a schematic structural diagram of the isolation frame 311.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, an agricultural product detection system comprises a water vapor generation device 1, a water vapor liquefaction collection device 2, an agricultural product stirring and sampling device 3, a liquid to be detected temporary storage dropping device 4 and a distilled water temporary storage dropping device 5; the water vapor generating device 1 is connected with the water vapor liquefaction and collection device 2 through a water vapor guide pipe 7; steam liquefaction collection device 2's distilled water exhanst outlet is connected with two-way pipe 21, one of them discharge pipe mouth of two-way pipe 21 is connected with dropping device 5 that keeps in with the distilled water through distilled water exhanst pipe 9, another discharge pipe mouth of two-way pipe 21 is located agricultural product stirring sampling device 3 directly over, and agricultural product stirring sampling device 3 through waiting to detect liquid discharge pipe 8 with wait to detect liquid dropping device 4 that keeps in and be connected.
The water vapor generating device 1 comprises a microwave heating container 11 and a water cup 12 arranged in the microwave heating container 11, and the microwave heating is stable and fast; the upper portion of the water cup 12 is communicated with a clear water inlet pipe 13, the bottom of the water cup 12 is communicated with a clear water outlet pipe 16, the clear water inlet pipe 13 and the clear water outlet pipe 16 both penetrate through the side wall of the microwave heating container 11 and extend to the outside of the microwave heating container, a first valve 14 is arranged on the clear water inlet pipe 13, a second valve 17 is arranged on the clear water outlet pipe 16, a clear water pouring funnel 15 is arranged at the pipe opening of the clear water inlet pipe 13, the clear water in the water cup 12 is heated and evaporated for a long time and then is reduced, although real-time water replenishing can be carried out through the clear water inlet pipe 13, the more impurities contained in the clear water in the water cup 12 are accumulated, the impurities can be discharged in time through the clear water outlet pipe 16, and the impurities are prevented from.
The water vapor liquefaction and collection device 2 comprises a cooling box 23 and a distilled water collection cover 22, the side box wall of the cooling box 23 is of a double-layer structure, an interlayer of the double-layer structure is filled with crushed ice blocks 213, the crushed ice blocks 211 are used for cooling, the price is low, the device can be made by a user, the input cost of agricultural product detection is saved, a cooling cavity of the cooling box 23 is communicated with the inner top of a water cup 12 through a water vapor guide pipe 7, and a cooling acceleration structure 212 is arranged in the cooling cavity of the cooling box 23, so that water vapor can be liquefied into distilled water more quickly; the distilled water collecting cover 22 is connected to be set up at the inner box wall lower limb of cooler bin 23, the narrowing mouth that the distilled water collected cover 22 is provided with two-way pipe 21, two-way pipe 21 includes vertical pipe 211 and horizontal pipe 212, be provided with third valve 2111 on the vertical pipe 211, and be provided with sponge 2112 in the vertical pipe 211, sponge 2112 can block not complete liquefied vapor to stay in cooler bin 23, makes its complete liquefaction vapor, can not cause the waste, not only water conservation, the electric energy of practicing thrift microwave heating container 11 use moreover.
The inner side wall of the cooling box 23 and the cooling acceleration structure 212 are made of iron materials, so that the heat transfer performance is good, the outer side wall of the cooling box 23 is made of heat insulation materials, so that the crushed ice 213 can be used for a longer time, the cooling acceleration structure 212 comprises a main connecting pipe 2121 and a plurality of connecting blades 2122 which are of an integral structure, the connecting blades 2122 are distributed on the outer portion of the main connecting pipe 2121 in a circumferential array manner, the blade ends of the connecting blades 2122 are fixedly connected with the inner side wall of the cooling box 23, the connecting blades 2122 are reasonably distributed, so that the liquefaction of water vapor is facilitated, each connecting blade 2122 comprises a plurality of connecting plates 2122a and a plurality of auxiliary connecting pipes 2122b which are of an integral structure, the connecting plates 2122a and the auxiliary connecting pipes 2122b are arranged in a regular and alternate manner, so that a larger cooling liquefaction area can be provided for the water vapor, and the water vapor.
Agricultural product stirring sampling device 3 is including setting up agitator tank 31 and the drive rabbling mechanism 32 of setting in agitator tank 31 under vertical pipe 211 delivery port, agitator tank 31 is inside to be provided with isolation frame 311 and division board 312, keep apart frame 311 and set up the last face at division board 312 with one heart, the rotatory stirring portion 322 of drive rabbling mechanism 32 is located isolation frame 311, and isolation frame 311 keeps apart the agricultural product in agitator tank 31 and rotatory stirring portion 322, can prevent that rotatory stirring portion 322 from smashing agricultural product, causes the damage, drive rabbling mechanism 32's driving motor 321 is located the space between division board 312 and agitator tank 31's the interior bottom of the case, and division board 312 is a watertight closing plate, keeps apart liquid and driving motor 321 in the agitator tank 31, plays the guard action.
The isolation frame 311 comprises a cylinder 311, a plurality of groups of strip hole groups 3111 are circumferentially distributed on the body of the cylinder 311, each group of strip hole groups 3111 comprises a plurality of strip holes 3111a which are uniformly arranged, the strip holes 3111a are arc-shaped and are matched with the profile of the body of the cylinder 311, when the rotary stirring part 322 rotates, the isolation frame 311 does not obstruct water in the cylinder 311 from moving water outside the cylinder 311 to form vortex through the strip holes 3111a, when the rotary stirring part 322 rotates, the isolation frame 311 realizes isolation of agricultural products, the agricultural products are fully washed away, and the accuracy of detection of pesticide residues on the surface of the agricultural products is improved.
The liquid dripping device 4 comprises a temporary storage tank 41, a diversion dropper 42, an elastic pulling mechanism 43 and a pressure balance pipe 44, wherein the temporary storage tank 41 of the liquid dripping device 4 is communicated with the stirring tank 31 through a liquid discharge pipe 8 to be detected, and the liquid discharge pipe 8 to be detected is provided with a fourth valve 81; the diversion dropper 42 is arranged at the bottom of the temporary storage tank 41 in a conduction way; the elastic pulling mechanism 43 comprises a sliding rod 431, a baffle 432, a hand-pulling plate 433 and a spring 434, wherein the sliding rod 431 penetrates through the top of the temporary storage box 41 and is arranged in a sliding fit with the sliding rod 431, the baffle 432 is arranged at the rod end of the sliding rod 431 in the temporary storage box 41, the hand-pulling plate 433 is arranged at the rod end of the sliding rod 431 outside the temporary storage box 41, the spring 434 is sleeved on the rod part of the sliding rod 431 between the hand-pulling plate 433 and the temporary storage box 41, and the spring 434 rebounds and pulls the baffle 432 to block a conduction port between the diversion drop pipe 42 and the temporary storage box 41; the pressure balance pipe 44 is disposed at the top of the temporary storage tank 41, the inside of the temporary storage tank 41 is communicated with the outside through the pressure balance pipe 44, and the pressure balance pipe 44 can keep the pressure in the temporary storage tank 41 the same as the outside.
The dropping device 5 is kept in to distilled water is the same with the dropping device 4 structure of keeping in to the liquid that awaits measuring, and distilled water keeps in the case 41 of keeping in of dropping device 5 and communicates through distilled water discharge tube 9 and horizontal pipe 212, be provided with fifth valve 91 on the distilled water discharge tube 9, the case 41 of keeping in of waiting to measure the liquid that waits to keep in of dropping device 4 is used for saving the liquid that awaits measuring that forms after the distilled water washes agricultural product, and the incomplete speed-measuring card 10 of reuse farming carries out the pesticide and detects, and distilled water keeps in the case 41 of keeping in of dropping device 5 and is used for saving some distilled water, is used for doing the contrast.
The agricultural residue rapid detection device also comprises an agricultural residue rapid detection card 10 for detecting agricultural product pesticide residue and a constant temperature box 6 for detecting heat preservation.
A detection method of an agricultural product detection system comprises the following specific steps:
the method comprises the following steps: opening the first valve 14, pouring clear water from the clear water into the funnel 15 and into the water cup 12, and then closing the first valve 14;
step two: the microwave heating container 11 is powered on for heating, water in the water cup 12 is gasified into steam, the steam enters the cooling box 23 through the steam guide pipe 7 to be cooled and liquefied into distilled water, at the moment, the third valve 2111 and the fifth valve 91 are opened simultaneously, a part of the distilled water falls into the stirring box 31, a part of the distilled water flows into the temporary storage box 41 of the distilled water temporary storage dropping device 5 through the distilled water discharge pipe 9, after a proper amount of distilled water is stored in the temporary storage box 41, the fifth valve 91 is closed, the distilled water continues to fall into the stirring box 31, and after a proper amount of distilled water is stored in the stirring box 31, the microwave heating container 11 is powered off, and the third valve 2111 is closed simultaneously;
step three: putting the agricultural products into a scouring area between the inner box wall of the stirring box 31 and the outer cylinder wall of the cylinder 311, starting the driving motor 321 to scour the surfaces of the agricultural products, after the scouring is finished, closing the driving motor 321 to form a liquid to be tested, opening the fourth valve 81, allowing the liquid to be tested to flow into the temporary storage box 41 of the liquid temporary storage dropping device 4 through the liquid discharge pipe 8 to be tested, and closing the fourth valve 81 after a proper amount of liquid to be tested is discharged;
step four: taking a pesticide residue quick test card 10, pulling a hand pulling plate 433 by water, enabling the liquid to be tested to flow into a diversion dropper 42 from a temporary storage box 41 of a liquid temporary storage dropping device 4 to be tested, dropping the liquid to be tested on a white medicine, and simultaneously taking a pesticide residue quick test card 10, and dropping the distilled water in the temporary storage box 41 of the distilled water temporary storage dropping device 5 on the white medicine in the same way to serve as a contrast;
step five: placing two pesticide residue rapid measuring cards 10 into a constant temperature box 6 for pre-reaction for ten minutes, and adjusting the temperature in the constant temperature box 6 to 37 ℃;
step six: after the pre-reaction is finished, folding the pesticide residue rapid-determination card 10 in half, and keeping the temperature in the constant temperature box 6 for three minutes to ensure that the red tablets and the white tablets are overlapped and react;
step seven: when the two pesticide residue rapid test cards 10 are compared, the condition that the white drug does not change into blue is a strong positive result, which indicates that the pesticide residue is higher, the condition that the light blue is a weak positive result, which indicates that the pesticide residue is relatively lower, and the white drug changes into sky blue or is the same as the compared pesticide residue rapid test card 10, which indicates that the pesticide residue is a negative result.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. An agricultural product detection system, characterized by: the device comprises a water vapor generating device (1), a water vapor liquefying and collecting device (2), an agricultural product stirring and sampling device (3), a liquid temporary storage dropping device (4) to be detected and a distilled water temporary storage dropping device (5); the water vapor generating device (1) is connected with the water vapor liquefaction collecting device (2) through a water vapor guide pipe (7); the distilled water discharging port of the water vapor liquefaction collecting device (2) is connected with a double-way pipe (21), one discharging pipe port of the double-way pipe (21) is connected with the distilled water temporary storage dropping device (5) through a distilled water discharging pipe (9), the other discharging pipe port of the double-way pipe (21) is positioned right above the agricultural product stirring sampling device (3), and the agricultural product stirring sampling device (3) is connected with the liquid temporary storage dropping device (4) through a liquid discharging pipe (8) to be detected;
the water vapor generating device (1) comprises a microwave heating container (11) and a water cup (12) arranged in the microwave heating container (11); a clear water inlet pipe (13) is communicated and arranged at the upper part of the water cup (12), a clear water discharge pipe (16) is communicated and arranged at the bottom of the water cup (12), the clear water inlet pipe (13) and the clear water discharge pipe (16) both penetrate through the side wall of the microwave heating container (11) and extend to the outside of the microwave heating container, a first valve (14) is arranged on the clear water inlet pipe (13), a second valve (17) is arranged on the clear water discharge pipe (16), and a clear water pouring funnel (15) is arranged at the pipe orifice of the clear water inlet pipe (13);
the water vapor liquefaction and collection device (2) comprises a cooling box (23) and a distilled water collection cover (22), the side box wall of the cooling box (23) is of a double-layer structure, an interlayer of the double-layer structure is filled with crushed ice blocks (213), a cooling cavity of the cooling box (23) is communicated with the inner top of a water cup (12) through a water vapor guide pipe (7), and a cooling acceleration structure (212) is arranged in the cooling cavity of the cooling box (23); the distilled water collecting cover (22) is connected with the lower edge of the inner box wall of the cooling box (23), a double-way pipe (21) is arranged at a narrowing opening of the distilled water collecting cover (22), the double-way pipe (21) comprises a vertical pipe (211) and a horizontal pipe (210), a third valve (2111) is arranged on the vertical pipe (211), and a sponge (2112) is arranged in the vertical pipe (211);
the inner side box wall of the cooling box (23) and the cooling acceleration structure (212) are made of iron materials, and the outer side box wall of the cooling box (23) is made of heat-insulating materials;
the cooling acceleration structure (212) comprises a main connecting pipe (2121) and a plurality of connecting blades (2122) which are of an integral structure, the connecting blades (2122) are distributed outside the main connecting pipe (2121) in a circumferential array manner, and the blade ends of the connecting blades (2122) are fixedly connected with the inner side box wall of the cooling box (23);
the connecting blade (2122) comprises a plurality of connecting plates (2122a) and a plurality of auxiliary connecting pipes (2122b) which are integrally formed, and the connecting plates (2122a) and the auxiliary connecting pipes (2122b) are regularly and alternately arranged.
2. An agricultural product detection system according to claim 1, wherein: agricultural product stirring sampling device (3) are including setting up agitator tank (31) under vertical pipe (211) delivery port and setting up drive rabbling mechanism (32) in agitator tank (31), agitator tank (31) inside is provided with isolation frame (311) and division board (312), keep apart frame (311) and set up the last face at division board (312) with one heart, rotatory stirring portion (322) of drive rabbling mechanism (32) are located isolation frame (311), driving motor (321) of drive rabbling mechanism (32) are located the space between the interior bottom of the case of division board (312) and agitator tank (31).
3. An agricultural product detection system according to claim 2, wherein: keep apart frame (311) including drum (311), circumference distributes on the stack shell of drum (311) has multiunit strip hole group (3111), every group strip hole group (3111) all include a plurality of strip hole (3111a) of align to grid, the shape of strip hole (3111a) is the circular-arc that suits with drum (311) stack shell profile.
4. An agricultural product detection system according to claim 3, wherein: the liquid temporarily storing and dripping device (4) comprises a temporarily storing box (41), a diversion dropper (42), an elastic pulling mechanism (43) and a pressure balance pipe (44), wherein the temporarily storing box (41) of the liquid temporarily storing and dripping device (4) is communicated with the stirring box (31) through a liquid discharging pipe (8) to be detected, and a fourth valve (81) is arranged on the liquid discharging pipe (8) to be detected; the diversion dropper (42) is arranged at the bottom of the temporary storage box (41) in a conduction way; the elastic pulling mechanism (43) comprises a sliding rod (431), a baffle (432), a hand-pulling plate (433) and a spring (434), wherein the sliding rod (431) penetrates through the top of the temporary storage box (41) and is arranged in a sliding fit manner with the sliding rod, the baffle (432) is arranged at the rod end of the sliding rod (431) located in the temporary storage box (41), the hand-pulling plate (433) is arranged at the rod end of the sliding rod (431) located outside the temporary storage box (41), the spring (434) is sleeved on the rod part of the sliding rod (431) located between the hand-pulling plate (433) and the temporary storage box (41), and the spring (434) rebounds to pull the baffle (432) to block a conduction port of the flow guide dropper (42) and the temporary storage box (41); the pressure balance pipe (44) is arranged at the top of the temporary storage tank (41), and the interior of the temporary storage tank (41) is communicated with the outside through the pressure balance pipe (44).
5. An agricultural product detection system according to claim 4, wherein: distilled water is kept in dropping liquid device (5) and is kept in dropping liquid device (4) the same with the liquid of waiting to be detected, and the case (41) of keeping in of distilled water dropping liquid device (5) communicates through distilled water exit tube (9) and horizontal pipe (212), be provided with fifth valve (91) on distilled water exit tube (9).
6. An agricultural product detection system according to claim 5, wherein: the agricultural residue rapid detection device also comprises an agricultural residue rapid detection card (10) for detecting agricultural product pesticide residues and a constant temperature box (6) for detecting heat preservation.
7. The inspection method of an agricultural product inspection system according to claim 6, wherein: the method comprises the following specific steps:
the method comprises the following steps: opening the first valve (14), pouring clear water from the clear water pouring funnel into the cup (12), and then closing the first valve (14);
step two: the microwave heating container (11) is electrified for heating, water in the water cup (12) is gasified into steam, the steam enters the cooling box (23) through the steam guide pipe (7) to be cooled and liquefied into distilled water, at the moment, the third valve (2111) and the fifth valve (91) are opened simultaneously, one part of the distilled water falls into the stirring box (31), one part of the distilled water flows into the temporary storage box (41) of the distilled water temporary storage dropping device (5) through the distilled water discharge pipe (9), after a proper amount of distilled water is stored in the temporary storage box (41), the fifth valve (91) is closed, the distilled water continues to fall into the stirring box (31), after a proper amount of distilled water is stored in the stirring box (31), the microwave heating container (11) is powered off, and the third valve (2111) is closed simultaneously;
step three: putting the agricultural products into a scouring area between the inner box wall of the stirring box (31) and the outer cylinder wall of the cylinder (311), starting the driving motor (321) to scour the surfaces of the agricultural products, closing the driving motor (321) after scouring is finished to form a liquid to be tested, opening the fourth valve (81), allowing the liquid to be tested to flow into a temporary storage box (41) of the liquid temporary storage dropping device (4) through a liquid discharge pipe (8) for the liquid to be tested, and closing the fourth valve (81) after a proper amount of liquid is discharged;
step four: taking a pesticide residue quick measuring card (10), pulling a hand pulling plate (433) by water, enabling the liquid to be measured to flow into a diversion dropper (42) from a temporary storage box (41) of a liquid temporary storage dropping device (4) to be measured, dropping the liquid to be measured on a white medicine, and simultaneously taking a pesticide residue quick measuring card (10) and dropping the distilled water in the temporary storage box (41) of a distilled water temporary storage dropping device (5) on the white medicine in the same way to be used as a contrast;
step five: putting two pesticide residue rapid measuring cards (10) into a constant temperature box (6) for pre-reaction for ten minutes, and adjusting the temperature in the constant temperature box (6) to 37 ℃;
step six: after the pre-reaction is finished, folding the pesticide residue quick test card (10) in half, and keeping the temperature in a constant temperature box (6) for three minutes to ensure that the red tablets and the white tablets are overlapped and react;
step seven: and the two pesticide residue quick test cards (10) are compared, and the result that the white pesticide does not change into blue is a strong positive result, which indicates that the pesticide residue is higher, the result that the light blue is a weak positive result, which indicates that the pesticide residue is relatively lower, and the result that the white pesticide residue is changed into sky blue or the same as the compared pesticide residue quick test card (10) is a negative result.
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| CN110975317A (en) * | 2019-11-22 | 2020-04-10 | 天津海关动植物与食品检测中心 | Microwave steam rapid distillation device |
| CN111323413B (en) * | 2020-02-17 | 2021-01-15 | 中国农业大学 | Device for detecting pesticide by evaporating solution-nucleic acid test paper |
| CN112857937B (en) * | 2021-01-25 | 2022-07-01 | 吉林省吉科软信息技术有限公司 | Automatic pesticide residue detection system based on food safety |
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