The Suma jar sampling and analysis system is a device used for gas sample collection and preservation. The following is a detailed analysis of its basic work:

1. Negative pressure sampling technology: Suma tank achieves gas sample collection by establishing a negative pressure environment. When performing the specific operation, first bring the cleaned and vacuumed sampling tank to the sampling point, install a filter to remove particulate matter from the air, open the sampling tank valve, and use the vacuum inside the tank to quickly suck the air sample into the sampling tank. After the pressure inside the tank matches the atmospheric pressure at the sampling point, close the valve and seal it with a sealing cap.

2. Application of the principles of mass conservation and momentum conservation: Throughout the sampling process, the principle of mass conservation is followed to ensure that the material mass of the sample does not change; It also involves the principle of conservation of momentum, ensuring that the motion state of gas molecules is not disturbed, thus truly reflecting the gas composition at the sampling point.

3. Application of inert materials: All parts in contact with the sampling gas are made of inert materials, such as stainless steel tanks treated with silane, high-quality metal to metal sealed valves, and internal pipelines, to prevent the sample from being adsorbed or contaminated, ensuring the stability and purity of the sample.

Precautions for using the Suma tank sampling and analysis system:

1. Pressure control: During use, ensure that the pressure of the sampled gas is within the maximum tolerance range of the Suma tank. If using negative pressure to inhale gas, attention should be paid not to exceed the specified negative pressure value of the equipment, otherwise it may cause damage to the tank or other safety issues.

2. Temperature management: Suma tanks should avoid exposure to high temperature environments, as high temperatures may cause gas expansion inside the tank or damage to the tank body. During storage and transportation, direct sunlight should be avoided as much as possible and stored in a cool and ventilated place.

3. Consideration of humidity impact: Due to the susceptibility of Suma tank sampling to meteorological conditions such as humidity, this factor needs to be taken into account during the sampling and storage process. If necessary, dehumidification measures should be taken to ensure the quality of the samples.

4. Operating standards: The automation level of the Suma tank sampling system is relatively low, and the opening and closing of valves rely on manual labor, making it impossible to achieve remote control and 24-hour unmanned timed monitoring. Therefore, operators need to strictly follow the operating procedures to ensure that each step is accurate and error free.

5. Regular inspection and maintenance: Regularly inspect and maintain the Suma tank and its related components, including sealing performance, valve flexibility, filter effectiveness, etc., promptly identify and solve problems to ensure the normal operation of the equipment and the accuracy of sampling.

6. Choose the appropriate Suma tank: Based on different sampling requirements and sample types, select Suma tanks of appropriate specifications and materials to ensure effective collection of target gases and maintain good stability.

7. Record detailed information: During the sampling process, record the sampling time, location, environmental conditions, sampling method, and other information in detail for subsequent data analysis and traceability.