Gas fumigation device, fumigation method and application
A technology of fumigation device and exhaust device, which is applied in the direction of application, device for capturing or killing insects, food preservation, etc. It can solve the problems of polluted environment, physical hazards of experimenters, high toxicity, etc., and achieves small environmental pollution and reduction of two secondary pollution, anti-gas leakage effect
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Embodiment 1
[0066] This embodiment provides a gas fumigation device, the structure schematic diagram of the device is as follows figure 1 shown, from figure 1 It can be seen that it includes a fumigation chamber 1, a gas inlet device and a gas exhaust device;
[0067] The fumigation chamber 1 is provided with a sample inlet (not shown in the figure) to be fumigated, a vent valve 3, a vacuum gauge 4, a vent 5, a stainless steel support (not shown in the figure), a stainless steel partition 11 and a circulation fan 12;
[0068] The entrance of the sample to be fumigated is located on the front wall of the fumigation chamber 1, and the entrance of the sample to be fumigated is equipped with a fumigation chamber door (not shown in the figure);
[0069] The top of the fumigation chamber 1 is provided with a gas vent 2 on the left side, and the vent valve 3 is installed on the gas vent 2;
[0070] The vacuum gauge 4 is installed on the top of the fumigation chamber 1 near the center through a...
Embodiment 2
[0082] This embodiment provides a gas fumigation treatment method for dried apricots, which is realized by using the device provided in Embodiment 1 of the present invention, and includes the following steps:
[0083] The dried apricot sample is put into four PVC plastic fresh-keeping boxes with air holes, the quality of the dried apricot sample in each plastic box is 200g, the plastic fresh-keeping box with sample is put into the stainless steel clapboard in the above-mentioned fumigation device, Close the fumigation chamber door and exhaust port. At this time, the pressure in the gas fumigation device is 0.90MPa, the temperature is 18.8°C, and the relative humidity is 38%;
[0084] (1) Inject 100 μL of nitric oxide (NO) gas through the air inlet at room temperature, close the air inlet, and fumigate the dried apricot samples in the first PVC plastic preservation box for 4 hours, then take out the dried apricot samples at room temperature Storage for 90 days;
[0085] (2) At...
Embodiment 3
[0113] The present embodiment provides a kind of gas fumigation processing method of jujube, and this method adopts the device that embodiment 1 provides to realize, and it comprises the following steps:
[0114] Put the jujube samples into four PVC plastic fresh-keeping boxes with air holes, the quality of the red jujube samples in each plastic box is 300g, put the plastic fresh-keeping boxes containing the samples on the stainless steel clapboard in the above-mentioned fumigation device, and close the fumigation At this time, the pressure in the gas fumigation device is 0.90MPa, the temperature is 19.6°C, and the relative humidity is 36%;
[0115] (1) Inject 200 μL of nitric oxide (NO) gas through the air inlet at room temperature, close the air inlet, and fumigate the jujube sample in the first PVC plastic preservation box for 6 hours, then take out the sample and store it at room temperature for 120 days ;
[0116] (2) At room temperature, inject 200 μL of sulfur dioxide ...
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