CN217695055U - Nitrogen-filled low-oxygen modified atmosphere insect killing test device - Google Patents
Nitrogen-filled low-oxygen modified atmosphere insect killing test device Download PDFInfo
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- CN217695055U CN217695055U CN202221522320.XU CN202221522320U CN217695055U CN 217695055 U CN217695055 U CN 217695055U CN 202221522320 U CN202221522320 U CN 202221522320U CN 217695055 U CN217695055 U CN 217695055U
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- gas
- nitrogen
- chamber
- modified atmosphere
- test device
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 239000001301 oxygen Substances 0.000 title claims description 32
- 229910052760 oxygen Inorganic materials 0.000 title claims description 32
- 241000238631 Hexapoda Species 0.000 title claims description 22
- 230000002147 killing effect Effects 0.000 title description 5
- 239000007789 gas Substances 0.000 claims abstract description 121
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 230000000749 insecticidal effect Effects 0.000 claims abstract description 22
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 5
- 208000018875 hypoxemia Diseases 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims 3
- 238000004320 controlled atmosphere Methods 0.000 abstract description 48
- 238000000034 method Methods 0.000 abstract description 43
- 238000004378 air conditioning Methods 0.000 abstract description 28
- 238000011897 real-time detection Methods 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 description 8
- 238000007599 discharging Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 241000607479 Yersinia pestis Species 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007954 hypoxia Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
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Abstract
The utility model discloses a fill nitrogen hypoxemia and transfer insecticidal test device relates to the field of the insecticidal grain storage loss of transferring to the atmosphere. The test device comprises a circulating sampling gas concentration detection loop formed after an air inlet and an air outlet are respectively communicated with the inner cavity of the controlled atmosphere chamber, and a nitrogen charging branch connected in series in the circulating sampling gas concentration detection loop; a hygrothermograph, a humidity determination cup, an operating glove, a pressure gauge and a pressure balance air bag are arranged in the inner cavity of the air conditioning chamber, an insect-taking buffer bin with an outer end extending out of the air conditioning chamber and an inner end extending to the position where the operating glove can reach is arranged in the middle upper part of the side wall of the air conditioning chamber, and a one-way valve III is arranged at the bottom of the side wall of the air conditioning chamber. The utility model discloses can the fast speed adjusting and control gas regulation concentration, high-efficient accurate online real-time detection gas regulation concentration can reduce the influence of gas regulation in-process pressure variation to the insecticidal effect, can take out the examination worm sample smoothly at the gas regulation in-process, and can reduce or avoid taking out the influence of the gas loss of examination worm sample in-process to gas concentration.
Description
Technical Field
The utility model relates to the technical field of loss reduction of air-conditioned insecticidal grain storage, in particular to a nitrogen-filled low-oxygen air-conditioned insecticidal test device.
Background
Because the grain safety is one of the national important strategies, the postpartum loss and green storage are inevitable for development, and the controlled atmosphere control of grain storage pests is regarded as a green, environment-friendly, pollution-free and residue-free technology. Intensive research is still needed on the controlled atmosphere insecticidal effect and technical application and promotion under different conditions. The existing air-conditioning pest killing effect research technology mainly comprises a modified dryer, modified Dreshel flasks, modified Strand flasks, a sealed packaging bag, a three-gas incubator, an automatic control air-conditioning chamber and the like. Wherein, the modified dryer, the Dreshel flask and the Strand flask generally adopt sampling to detect the gas concentration, and have the defects of long detection time, high technical requirement and easy gas loss; the sealed packaging bag can only carry out sampling once to detect the gas concentration generally, and the sealed environment is destroyed after sampling; the three-gas incubator and the automatically controlled atmosphere control chamber are expensive and inconvenient to move, and further limit the application of the three-gas incubator and the automatically controlled atmosphere control chamber. In addition, the devices also have influence on pests due to large pressure change in the process of filling nitrogen gas, and the defects of the method for detecting the sampling and effect of the test insects in the process of air conditioning are overcome, so that the test insect samples are generally detected after the treatment is finished.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a nitrogen-filled hypoxia controlled-atmosphere insecticidal test device aiming at the defects existing in the prior art. The utility model discloses can regulate and control gas regulation concentration fast, high-efficient accurate online real-time detection gas regulation concentration, can make the room of adjusting the gas keep stable in pressure at the nitrogen filling oxygen discharge in-process, reduce the influence of gas regulation in-process pressure variation to the insecticidal effect, can take out the examination worm sample smoothly at the gas regulation in-process, and can reduce or avoid taking out the gas loss of examination worm sample in-process to the influence of gas concentration, do benefit to the insecticidal effect of more scientifically appraising gas regulation in-process, the circulation sample has, real-time detection, stable in pressure, the leakproofness is good, high efficiency, low cost, and is simple in operation, high durability and convenient use's advantage.
The purpose of the utility model can be realized by the following technical measures:
the utility model discloses a fill nitrogen hypoxemia gas regulation insecticidal test device includes the gas inlet and the gas outlet and communicates the circulation sample gas concentration detection return circuit that forms behind the room inner chamber of gas regulation respectively (can enough high-efficient accurate online real-time detection gas concentration in the room inner chamber of gas regulation, can cooperate the branch road of filling nitrogen to regulate and control the gas concentration in the room inner chamber of gas regulation fast again), the branch road of filling nitrogen (open the check valve II in the branch road of filling nitrogen, the nitrogen gas in the branch road of filling nitrogen gets into the room of gas regulation via the branch road of sampling gas concentration detection of circulation, can fill nitrogen to the room of gas regulation); the circulating sampling gas concentration detection loop is composed of a gas-adjusting chamber, a conduit I, an oxygen concentration detector, a three-way joint and two one-way valves I, wherein the conduit I is communicated with the inner cavity of the gas-adjusting chamber through a gas inlet and a gas outlet; the nitrogen filling branch is composed of a nitrogen steel cylinder, a conduit II communicated with the nitrogen steel cylinder and a three-way joint, a gas flowmeter and a one-way valve II which are sequentially connected in series on the conduit II (the nitrogen steel cylinder is used for containing high-concentration nitrogen, the conduit II is used for conveying nitrogen, the gas flowmeter is used for controlling the nitrogen filling speed and is beneficial to regulating and controlling the controlled atmosphere concentration, the one-way valve II is used for controlling the opening or closing of the nitrogen filling branch, the one-way valve II is opened, and the nitrogen discharged from the nitrogen steel cylinder enters the inner cavity of the controlled atmosphere chamber through the conduit II and the conduit I in sequence to fill the controlled atmosphere chamber with nitrogen); a hygrothermograph, a humidity determination cup, an operating glove, a pressure gauge and a pressure balance air bag are arranged in the inner cavity of the controlled atmosphere chamber (the hygrothermograph is used for testing the temperature value and the humidity value of the inner cavity of the controlled atmosphere chamber in real time; the humidity-fixing cup can provide and maintain a certain humidity for the inner cavity of the air-conditioned room; the operation gloves are used for taking and placing the test insect samples, the test insect samples can be taken out smoothly in the air conditioning process by virtue of the insect taking buffer bin, gas loss and change of gas concentration are reduced or avoided, the pressure gauge can display the gas pressure in the inner cavity of the air conditioning chamber in real time, the pressure balance air bag can keep the pressure stable in the nitrogen and oxygen filling and discharging process of the air conditioning chamber, the influence of the pressure change on the insect killing effect in the air conditioning process can be reduced, the insect taking buffer bin with the outer end extending out of the air conditioning chamber and the inner end extending to the position where the operation gloves can reach is penetrated through the upper middle part of the side wall of the air conditioning chamber (the influence of the gas loss in the process of taking the test insect samples on the gas concentration can be reduced or avoided by opening and closing the sealing covers at the inner end and the outer end of the insect taking buffer bin in turn), the one-way valve III is installed at the bottom of the side wall of the air conditioning chamber (when the nitrogen filling branch is opened to fill the air conditioning chamber for filling nitrogen, the nitrogen and the low oxygen in the air conditioning can be discharged from the air conditioning chamber by opening the one-way III, the oxygen filling and the air conditioning chamber can be discharged, the oxygen in the nitrogen and the air conditioning process of the insecticidal low oxygen filling and the air conditioning process can be realized.
The pressure balance air bag is of a spherical structure and is prepared by reinforced TPU (the TPU plastic has stronger ductility, so that the pressure balance air bag can keep stable pressure in the process of filling nitrogen and discharging oxygen in the air conditioning chamber, and the influence of pressure change on the insecticidal effect in the air conditioning process can be reduced); the air outlet end of the pressure balance air bag is communicated with a guide pipe III with the outer end closed, and a pressure gauge is connected in series on the guide pipe III (the pressure gauge can display the air pressure in the inner cavity of the air conditioning chamber in real time).
The utility model discloses in the inside and outside end of getting worm surge bin all is provided with sealed lid (open in turn in the worm surge bin through successive and open and close the sealed lid of getting the outer end-open earlier the sealed lid inner, put the sealed lid that seals after the inner chamber of getting worm surge bin through operating gloves with the examination worm sample, open the sealed lid of outer end again, and then can take out the examination worm sample smoothly at the gas regulation in-process, and can reduce or avoid taking out the influence of the gas loss of examination worm sample in-process to gas concentration).
The design principle of the utility model is as follows:
the utility model can quickly regulate and control the gas concentration in the inner cavity of the controlled atmosphere chamber by charging and discharging oxygen to the controlled atmosphere chamber, namely, the check valve II in the nitrogen charging branch and the check valve III at the bottom of the side wall of the controlled atmosphere chamber are opened, partial oxygen in the controlled atmosphere chamber is discharged through the check valve III while the nitrogen charging branch charges nitrogen to the controlled atmosphere chamber, and meanwhile, the controlled atmosphere gas in the controlled atmosphere chamber can circulate along the circulating sampling gas concentration detection loop, so that the gas concentration can be quickly regulated and controlled; the utility model can efficiently and accurately detect the gas-regulating concentration on line in real time by means of the cyclic sampling gas concentration detection loop and the oxygen concentration detector, namely, after two check valves I in the cyclic sampling gas concentration detection loop are opened, the gas in the inner cavity of the gas-regulating chamber circulates along the cyclic sampling gas concentration detection loop, and meanwhile, the gas-regulating concentration can be efficiently and accurately detected on line in real time by means of the oxygen concentration detector; the pressure balance air bag designed by the utility model is prepared by reinforced TPU plastic, and because the TPU plastic has stronger ductility, the pressure balance air bag can keep stable pressure in the process of filling nitrogen and discharging oxygen in the air conditioning chamber, and can display the gas pressure in the inner cavity of the air conditioning chamber in real time through the pressure gauge, thus reducing the influence of pressure change on the insecticidal effect in the air conditioning process; the utility model relates to a design has and gets worm surge bin, can take out the examination worm sample smoothly at the gas regulation in-process with the help of getting the worm surge bin-open inner sealed lid promptly earlier, put the examination worm sample through operating gloves and seal inner sealed lid after getting the inner chamber of worm surge bin, open the sealed lid of outer end again, can take out the examination worm sample smoothly at the gas regulation in-process like this to guarantee that the examination worm sample can reduce or avoid the change of gas loss and gas concentration at the in-process that shifts out the gas regulation room, do benefit to the insecticidal effect of evaluating the gas regulation in-process more scientifically.
The beneficial effects of the utility model are as follows:
the utility model discloses can regulate and control gas regulation concentration fast, high-efficient accurate online real-time detection gas regulation concentration, can make the room of adjusting the gas keep stable in pressure at the nitrogen filling oxygen discharge in-process, reduce the influence of gas regulation in-process pressure variation to the insecticidal effect, can take out the examination worm sample smoothly at the gas regulation in-process, and can reduce or avoid taking out the gas loss of examination worm sample in-process to the influence of gas concentration, do benefit to the insecticidal effect of more scientifically appraising gas regulation in-process, the circulation sample has, real-time detection, stable in pressure, the leakproofness is good, high efficiency, low cost, and is simple in operation, high durability and convenient use's advantage.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention.
The sequence numbers in the figures illustrate: A. the device comprises a cyclic sampling gas concentration detection loop, a nitrogen filling branch, a warm and humid acidimeter, a humidity fixing cup, a pair of operating gloves, a pair of pest taking buffer bins, a pair of sealing covers, a pair of pressure gauges, a pair of pressure balancing airbags, a pair of air adjusting chambers, a pair of oxygen concentration detectors, a pair of nitrogen steel cylinders, a pair of gas flow meters, a pair of check valves I and 11', a pair of check valves II and 11', a pair of check valves III and 12, a tee joint, a pair of guide pipes I and 13', a pair of guide pipes II and 13' and a guide pipe III.
Detailed Description
The present invention will be further described with reference to the accompanying drawings:
as shown in fig. 1, the utility model discloses a nitrogen-filled hypoxia controlled atmosphere insecticidal test device includes the gas inlet and the gas outlet respectively communicate the gas concentration detection return circuit a of cyclic sampling that forms behind the chamber 7 inner chamber of controlled atmosphere room (can enough high-efficient accurate online real-time detection the gas concentration in the chamber 7 inner chamber of controlled atmosphere room, can cooperate with nitrogen-filled branch road B to regulate and control the gas concentration in the chamber 7 inner chamber fast), the nitrogen-filled branch road B (open the check valve ii 11' in the nitrogen-filled branch road B, the nitrogen gas in the nitrogen-filled branch road B gets into controlled atmosphere room 7 through cyclic sampling gas concentration detection return circuit a, can fill nitrogen to controlled atmosphere room 7); the circulating sampling gas concentration detection loop A is composed of a gas regulation chamber 7, a conduit I13, an oxygen concentration detector 8, a three-way joint 12 and two one-way valves I11, wherein the conduit I13 is communicated with the inner cavity of the gas regulation chamber, the gas inlet and the gas outlet are sequentially connected with the conduit I13 in series, the oxygen concentration detector 8 is provided with a built-in gas pump, the three-way joint 12 is arranged at the front end and the rear end of the three-way joint 12, when the two one-way valves I11 in the circulating sampling gas concentration detection loop A are opened, gas in the inner cavity of the gas regulation chamber 7 circulates along the circulating sampling gas concentration detection loop A, meanwhile, the oxygen concentration detector 8 can efficiently and accurately detect the concentration in real time on line, meanwhile, a nitrogen filling branch B is connected into the circulating sampling gas concentration detection loop A in series by the three-way joint 12, when a one-way valve II 11' in the nitrogen filling branch B and a one-way valve III 11' at the bottom of the side wall of the gas regulation chamber 7 are opened, part of oxygen in the gas regulation chamber 7 is discharged out of the gas regulation chamber 7 through the one-way valve III 11', and the gas regulation can be quickly regulated in the gas regulation chamber 7 so as to regulate the concentration detection loop A; the nitrogen filling branch B is composed of a nitrogen steel bottle 9, a guide pipe II 13 'communicated with the nitrogen steel bottle and a three-way joint, and a gas flowmeter 10 and a one-way valve II 11' (the nitrogen steel bottle 9 is used for containing high-concentration nitrogen, the guide pipe II 13 'is used for conveying nitrogen, the gas flowmeter 10 is used for controlling the nitrogen filling speed to facilitate regulation and control of the controlled atmosphere concentration, the one-way valve II 11' is used for controlling the opening or closing of the nitrogen filling branch B, the one-way valve II 11 'is opened, nitrogen discharged from the nitrogen steel bottle 9 sequentially enters the inner cavity of the controlled atmosphere chamber 7 through the guide pipe II 13' and the guide pipe I13 to fill the controlled atmosphere chamber 7 with nitrogen) in series; the inner cavity of the controlled atmosphere chamber 7 is provided with a hygrothermograph 1, a constant humidity cup 2, an operating glove 3, a pressure gauge 5 and a pressure balance air bag 6 (the hygrothermograph 1 is used for testing the temperature value and the humidity value of the inner cavity of the controlled atmosphere chamber 7 in real time, the constant humidity cup 2 can provide and maintain certain humidity for the inner cavity of the controlled atmosphere chamber 7, the operating glove 3 is used for taking and placing a test insect sample, the test insect sample can be taken out smoothly in the controlled atmosphere process by the aid of the controlled atmosphere buffer chamber 4, gas loss and gas concentration change are reduced or avoided, the pressure gauge 5 can display the gas pressure in the inner cavity of the controlled atmosphere chamber 7 in real time, the pressure balance air bag 6 can enable the controlled atmosphere chamber 7 to keep stable in pressure in the nitrogen filling and oxygen discharging processes, the influence of the pressure change on the insecticidal effect in the controlled atmosphere process is reduced), the taking buffer chamber 4 with the outer end extending out from the upper part of the side wall of the controlled atmosphere chamber 7 and the inner end extending to the position of the operating glove (the controlled atmosphere buffer chamber 4 is opened and opened by opening and opening the controlled atmosphere sealing cover 4-1 in the controlled atmosphere valve 11 in the controlled atmosphere chamber 7 in turn in the controlled atmosphere, the controlled atmosphere chamber 7, the side wall of the controlled atmosphere is opened, the controlled atmosphere chamber 7, the controlled atmosphere valve 7, the side wall III is opened, the side wall of the controlled atmosphere chamber 7, the controlled atmosphere.
The pressure balance air bag 6 in the utility model is of a spherical structure and is prepared by reinforced TPU (the TPU plastic has stronger ductility, so that the pressure balance air bag 6 can keep stable pressure in the process of filling nitrogen and discharging oxygen in the air conditioning chamber 7, and the influence of pressure change on the insecticidal effect in the air conditioning process can be reduced); the air outlet end of the pressure balance air bag 6 is communicated with a guide pipe III 13 with the outer end closed, and the pressure gauge 5 is connected in series on the guide pipe III 13' (the pressure gauge 5 can display the air pressure in the inner cavity of the modified atmosphere chamber 7 in real time).
The utility model discloses in the interior outer end of getting worm surge bin 4 all is provided with sealed lid 4-1 (through opening in turn in succession and opening and close the sealed lid 4-1 of getting the interior outer end of worm surge bin 4-open inner sealed lid 4-1 earlier, seal inner sealed lid 4-1 after putting the inner chamber of getting worm surge bin 4 with the examination worm sample through operating gloves 3, open the sealed lid 4-1 of outer end again, and then can take out the examination worm sample smoothly in the gas regulation process, and can reduce or avoid taking out the influence of the gas loss of examination worm sample in-process to gas concentration).
The utility model discloses a concrete in service behavior as follows:
firstly, the utility model is assembled according to the position relation shown in the structural description and the attached drawings; then, the hygrothermograph 1, the constant humidity cup 2 and the test insect sample are placed in the inner cavity of the air-conditioned chamber 7, and the operation gloves 3 and the sealing covers 4-1 at the inner and outer ends of the insect-taking buffer bin 4 are sealed; then, opening a pressure gauge 5, a pressure balance air bag 6, opening a one-way valve II 11' in a nitrogen filling branch B and a one-way valve III 11' at the bottom of the side wall of the modified atmosphere chamber 7, discharging partial oxygen in the modified atmosphere chamber through the one-way valve III 11' while filling nitrogen into the modified atmosphere chamber by the nitrogen filling branch, observing the pressure gauge 5), and regulating and controlling a gas flowmeter 10 after the pressure is stable, so that the pressure in the air control chamber 7 is stable in the nitrogen filling process, and the increased micro pressure in the nitrogen filling and oxygen discharging process can be balanced by the pressure balance air bag 6; meanwhile, two one-way valves I11 in the cyclic sampling gas concentration detection loop A are also in an open state, gas in the inner cavity of the controlled atmosphere chamber 7 circulates along the cyclic sampling gas concentration detection loop A, and meanwhile, the controlled atmosphere concentration can be efficiently and accurately detected on line in real time by virtue of the oxygen concentration detector 8; stopping nitrogen charging until the oxygen concentration measured by the oxygen concentration detector 8 reaches a preset concentration, namely closing a check valve II 11' in the nitrogen charging branch B; then, after the set detection time is reached, the test insect sample is taken out by means of the operating gloves 3 and the insect taking buffer bin 4, namely, the inner sealing cover 4-1 is firstly opened, the test insect sample is placed in the inner cavity of the insect taking buffer bin 4 through the operating gloves 3, then the inner sealing cover 4-1 is closed, and then the outer sealing cover 4-1 is opened, so that the test insect sample can be smoothly taken out in the air-conditioned process, the gas loss and the change of the gas concentration can be reduced or avoided in the process that the test insect sample is moved out of the air-conditioned chamber, and the insect killing effect in the air-conditioned process can be checked and evaluated.
Claims (3)
1. The utility model provides a nitrogen filling hypoxemia gas regulation insecticidal test device which characterized in that: the testing device comprises a circulating sampling gas concentration detection loop (A) formed by respectively communicating a gas inlet and a gas outlet with an inner cavity of the gas conditioning chamber (7), and a nitrogen charging branch (B) connected in series in the circulating sampling gas concentration detection loop; the circulating sampling gas concentration detection loop (A) is composed of a gas conditioning chamber (7), a conduit I (13) with a gas inlet and a gas outlet communicated with the inner cavity of the gas conditioning chamber, an oxygen concentration detector (8) and a three-way joint (12) which are sequentially connected in series on the conduit I (13) and are provided with built-in gas pumps, and two one-way valves I (11) arranged at the front end and the rear end of the three-way joint (12); the nitrogen charging branch (B) consists of a nitrogen steel cylinder (9), a conduit II (13 ') for communicating the nitrogen steel cylinder with a three-way joint, a gas flowmeter (10) and a one-way valve II (11 ') which are sequentially connected in series on the conduit II (13 '); a hygrothermograph (1), a constant humidity cup (2), operating gloves (3), a pressure gauge (5) and a pressure balance air bag (6) are arranged in the inner cavity of the modified atmosphere chamber (7), an insect fetching buffer bin (4) with an outer end extending out of the modified atmosphere chamber and an inner end extending to the position where the operating gloves can reach is penetrated through the middle upper part of the side wall of the modified atmosphere chamber (7), and a check valve III (11) is arranged at the bottom of the side wall of the modified atmosphere chamber (7).
2. The nitrogen-filled low-oxygen modified atmosphere insecticidal test device according to claim 1, characterized in that: the pressure balance air bag (6) is of a spherical structure and is prepared by reinforced TPU plastic; the air outlet end of the pressure balance air bag (6) is communicated with a guide pipe III (13) with the outer end closed, and the pressure gauge (5) is connected on the guide pipe III (13') in series.
3. The nitrogen-filled low-oxygen modified atmosphere insecticidal test device according to claim 1, characterized in that: the inner end and the outer end of the insect-taking buffer bin (4) are both provided with a sealing cover (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221522320.XU CN217695055U (en) | 2022-06-18 | 2022-06-18 | Nitrogen-filled low-oxygen modified atmosphere insect killing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221522320.XU CN217695055U (en) | 2022-06-18 | 2022-06-18 | Nitrogen-filled low-oxygen modified atmosphere insect killing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217695055U true CN217695055U (en) | 2022-11-01 |
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ID=83802545
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221522320.XU Expired - Fee Related CN217695055U (en) | 2022-06-18 | 2022-06-18 | Nitrogen-filled low-oxygen modified atmosphere insect killing test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217695055U (en) |
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2022
- 2022-06-18 CN CN202221522320.XU patent/CN217695055U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20221101 |