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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.

Pending Publication Date: 2020-10-16
应急管理部化学品登记中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the technical problems to be solved by the present invention is the problem of inaccurate test results in the prior art, and a new device for testing the rate of gas emitted by substances in contact with water is provided, which has the advantage of accurate test results

Method used

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  • Device for testing gas release rate of substance encountering water and application

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Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a device for testing the gas release rate of a substance encountering water and application, and mainly solves the problem of inaccurate test result in the prior art. According to the technical scheme, the device mainly comprises a constant-temperature box, a test bottle, a sample pool, a precise peristaltic pump, a flow meter, a pressure detector and a water bath box, thesample pool is placed at the bottom of the test bottle; a water inlet is formed in the bottom of the test bottle; a bottle plug is arranged at an opening of test bottle, one end of the exhaust pipeline penetrates through the bottle plug and extends into the test bottle; the other end is connected with a flowmeter inlet; the pressure detector is arranged on the exhaust pipeline in front of the inlet of the flow meter; the test bottle is placed in the water bath box, and the water bath box is provided with accessory equipment comprising a heating sheet, an overflow port, a low-water-level switch, a water temperature sensor, a refrigerator, a circulating water pump and a bottom drainage pipeline. Thus, the problems are effectively solved, and the device can be used for testing the gas release rate of the substance when the substance meets water.

Description

technical field [0001] The invention relates to a device and application for testing the gas emission rate of substances meeting water. Background technique [0002] Some substances (such as Na, K, Mg) will react with water and release hydrogen and other explosive gases, which will lead to fire and explosion accidents. At present, although the test methods and test instruments currently used in China have realized the functions of water injection, automatic recording, and automatic calculation in the whole test, there are some problems. Experimental Apparatus for Emitting Flammable Gas Substances", "A Device for Testing the Rate of Emitting Flammable Gases of Substances in Contact with Water" disclosed in Chinese Patent ZL200810160135.9, and "Test of Hazardous Chemicals Emitting Flammable Gases in Contact with Water" disclosed in Chinese Patent ZL01020104849.0 Instrument", all put forward some schemes for accurate measurement, but in actual work, it was found that although ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/18
CPCG01N7/18
Inventor 郭璐王康厉鹏费轶张金梅
Owner 应急管理部化学品登记中心
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