Device for testing gas release rate of substance encountering water and application
A technology that releases gas and encounters water. It is applied in the direction of analyzing materials and instruments. It can solve the problems of inaccurate test results and other problems, and achieve the effects of stable use of the device, convenient and accurate testing, and improved accuracy and precision.
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Embodiment 1
[0020] A device for testing the rate at which a substance evolves gas when it meets water, such as figure 1 As shown, it mainly includes a constant temperature box, a test bottle, a sample pool, a precision peristaltic pump, a flow meter, a pressure detector, and a water bath box. The sample pool is placed at the bottom of the test bottle, and the bottom of the test bottle is provided with a water inlet. The outlet of the precision peristaltic pump is connected, the mouth of the test bottle is provided with a cork, one end of the exhaust pipeline passes through the cork and extends into the test bottle, the other end is connected to the inlet of the flowmeter, and a pressure detector is installed on the exhaust pipeline in front of the inlet of the flowmeter , the test bottle is placed in a water bath box, and the water bath box is provided with auxiliary equipment including a heating plate, an overflow port, a low water level switch, a water temperature sensor, a refrigerator,...
Embodiment 2
[0034] According to the conditions and steps described in Example 1, carry out the test of mancozeb meeting water release gas rate, the test steps are as follows:
[0035] (1) Prepare 300ml of deionized water and put it in a beaker at a constant temperature of 20°C;
[0036] (2) Put 25.0g mancozeb into the groove above the sample cell;
[0037] (3) The mouth of the test bottle is smeared with vaseline and then covered and sealed;
[0038] (4) Set the water injection method of the precision peristaltic pump, continuously inject 200ml of water, and keep a constant rate of 10ml / min;
[0039] (5) Start the test, judge the temperature of the water bath box by the water temperature sensor of the water bath box, if it is lower than the set value, then heat the heating piece of the water bath box, and if it is higher than the set value, then use the water bath box refrigerator to cool down, and finally use The water bath is stable at the set value;
[0040] (6) At the same time, ac...
Embodiment 3
[0047] According to the conditions and steps described in embodiment 1, carry out the test of ferrosilicon meeting water and release gas rate, test result is as follows:
[0048] Ferrosilicon, the maximum degassing rate in water: 0.1359L / kg.h.
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