High Quality Hvac Monitoring Instruments From Zetron

Clean room is a kind of clean space to control various environmental factors to make it reach a certain degree of cleanliness, in this kind of space, we will need a lot of various equipment to detect the state of various influencing factors, such as particle counters, photometers, air volume hoods and other equipment to carry out relevant testing, that in the clean room in various testing equipment uses are what? What factors are detected?



The Airflow capture hood also becomes the air hood, to various air inlets and outlets for related testing, need to detect wind pressure, wind speed, temperature and humidity and other parameters, used to calculate the number of air changes in the clean room, because the cleanliness of the clean room, clean area is mainly by sending in a sufficient amount of clean air to discharge, dilute the indoor generation of particle pollutants to achieve, so the need to detect the number of air changes.





FSC-V desktop biological air sampler is a high-efficiency porous inhalation dust bacteria sampler. It is designed according to the isokinetic sampling theory, sampling directly, the air speed at the sampling port is basically the same as the air speed in the clean room, which can reflect the microbial concentration in the clean room more accurately. When sampling, the air with dust bacteria passes through the microporous at high speed and is hit on the surface of the agar in the petri dish; it greatly improves the collection efficiency of the active particles in accordance with ISO14698-1 standard. These live microorganisms undergo a dynamic rehydration process during incubation and grow at high speed, resulting in faster results.





B330 High Flow Laser Particle Counter is a new type of particle counter for measuring the size and number of dust particles per unit volume of air in a clean environment, which can quickly verify the cleanliness level of a clean room and print out the relevant test results in compliance with ISO14644 and GMP 2010. The product is easy to operate and simple to use with its large color touch screen of high resolution. Typical applications include particle testing in clean rooms, air particle research, indoor air quality assessment, and also filter performance testing and cleanliness evaluation.





PM-350 aerosol photometer for food and drug manufacturers is used for on-site leak detection after the installation of high-efficiency filters and their systems, mainly to check small pinholes and other damages in the filter material, such as frame seals, gasket seals and leaky seams on the filter frame. The purpose of leak detection is to detect the defects in the high-efficiency filter itself and in the installation in time by checking the sealing of the high-efficiency filter and its connection parts with the installation frame, etc., and take corresponding remedial measures to ensure the cleanliness of the area.





PM-350 aerosol photometer can automatically switch upstream and downstream aerosol concentration to determine whether the filter has a leak, portable scanning probe allows the operator to quickly and accurately identify the leak point in remote locations and determine other leak ratios, when the alarm boundary is exceeded, the display board will show an alarm.



In addition, in the clean room environment testing, there are not only the above testing equipment, but also many other related testing equipment, such as high pressure gas diffusers, gas detectors and other equipment, of which particle counters are most widely used in clean room testing, about the clean room environment monitoring, Beijing Zetron Technology Co. Ltd. as a service provider specializing in providing overall solutions for clean environment in biopharmaceutical, clean space, laboratory, gas detection and other industries, we can provide you with one-stop solutions to meet your different needs.

In the world of agriculture, preserving grain quality during storage is paramount to ensure food security and economic stability. However, challenges such as insect infestations, mold growth, and quality deterioration often plague grain storage facilities, leading to significant losses. According to estimations from silo producer companies, approximately 10% of the world's grain production is lost during storage due to various reasons.



Traditional methods of insect control often involve the use of chemical pesticides, which can leave residues on the grain and pose risks to human health and the environment. However, recent advancements in technology offer a more sustainable solution: ozone gas.



Research has shown that ozone gas effectively controls insect reproduction in silos. By preventing larval development and rendering adult insects unable to reproduce, ozone gas can significantly reduce the risk of infestations without leaving harmful residues on the grain. Furthermore, ozone gas has oxidant properties that can destroy agricultural and pesticide residues on the grain surface, as well as prevent microbiological contamination in the silo environment.



At Zetron Technology Co., Ltd , we specialize in providing ozone analysis instruments that play a crucial role in implementing ozone gas solutions for grain storage. Our instruments continuously monitor ozone levels in the silo environment, ensuring that the concentration is at the appropriate level to prevent insect reproduction while minimizing any potential negative effects on the grain.



By integrating our ozone analysis instruments into grain storage facilities, farmers and storage managers can effectively preserve grain quality, reduce losses, and promote sustainable agricultural practices. With our innovative technology, we are committed to supporting the agricultural industry in overcoming the challenges of grain storage and ensuring food security for generations to come.

Project  background



Nitrogen oxides mainly include N2O, NO, NO2, N2O3, N2O4, N2O5 and so on. Among them, the nitrogen oxides formed during the combustion process are almost all N0 and NO2, and these two nitrogen oxides are usually called NOX. At present, among the nitrogen oxides produced by natural mineral dyes such as coal, natural gas and heavy oil, NO accounts for about 90%, and the rest is NO2.



The harm of nitrogen oxides is huge: (1) Endanger the health of people. (2) Harm the growth of forests and crops. (3) Significant impact on global climate change and severe damage to the high-altitude ozone layer.



Known from the formation principle of flue gas pollution components, oxygen is its key component. In the actual production process, when the boiler is burned with fuel, excess air is generally added. On the one hand, the fuel can be fully burned, but another problem also arises. The concentration of pollutants discharged from the exhaust pipe produces "dilution", which greatly Reducing the emission concentration will cause the pollutant emission concentration to reach the “false” standard. Excessive air causes the furnace temperature to drop, which not only affects the combustion, but also takes away a lot of heat and dust, increasing the calculation result of the pollution emission concentration. At the same time, the large air volume also increases the power consumption of smoke exhaust. Controlling the oxygen content of flue gas is very important for controlling the combustion process and achieving safe, efficient and low-pollution emissions.



The emission concentration of sulfur dioxide and nitrogen oxides in the flue gas should be converted according to the specified excess air coefficient, and the size of the conversion value depends on the measured value of the flue gas oxygen content. Therefore, the oxygen content in the flue gas is controlled during operation. Controlling the final emission concentration of pollutants is crucial. A flue gas analyzer is usually used to monitor the oxygen content in the flue gas. The core technology for detecting gas is a gas sensor. At present, electrochemical sensors are widely used.



Design monitoring items: detection of NOX, O2, optional monitoring of SO2, CO, CO2, etc.









Scheme details



First of all, through front-end dust filtration, cooling, water vapor separation through the pretreatment system condenser, and measuring the content of NO, NO2, O2 with a composite gas detector; then according to the provisions of GB5468 or GB/T16157, the atmospheric pollutant reference content Oxygen emission concentration conversion method, conversion of nitrogen oxide emission concentration. The measured gas concentration is displayed on the display screen in real time, and the data signal is transmitted to the terminal such as PLC or computer. It can also be transmitted to the cloud server through wireless GPRS or network, or connected to the environmental protection bureau through the data acquisition instrument for real-time supervision.