Market Status of Environmental Monitors and Gas Detectors
Environmental monitoring is defined by the environmental monitoring agency to verify the requirements of relevant laws and regulations, to carry out technical monitoring, testing and interpretation of various environmental elements representing environmental quality and development trends, and to carry out law enforcement supervision, control and evaluation of the compliance of environmental behaviors with laws and regulations. Whole process operation. In order to guide and promote the development of my country's environmental monitoring technology industry and improve the technical level of environmental monitoring instruments, guidelines for the development of environmental monitoring instruments are specially compiled. Environmental monitoring is the foundation and technical support of environmental management. With the development of environmental protection work in China, my country's environmental monitoring technology has also made great progress, and the production of environmental monitoring instruments has formed a certain scale.
At present, there are more than 140 manufacturers of environmental monitoring instruments in my country, with an annual output value of 480 million yuan, accounting for about 2.3% of the national output value of environmental protection products. The main products of environmental monitoring instruments are various water pollution and air pollution monitoring, noise and vibration monitoring. , radioactive and electromagnetic wave monitoring equipment. Environmental monitoring instruments such as smoke and dust samplers, flue gas samplers, total suspended particulates samplers, oil content analyzers, sewage flow meters, etc. produced in my country have approached or reached a fairly high level, occupying a large proportion in the domestic market. The automatic control technology of monitoring instruments such as atomic absorption, ultraviolet-visible spectrophotometer, and gas chromatograph used in large domestic laboratories is relatively low, and key components are still imported.
Most of my country's environmental monitoring instruments are produced by small and medium-sized enterprises, and the products are basically concentrated in low-end environmental monitoring instruments, which are far from meeting the needs of the development of environmental monitoring work in my country. Mainly as follows:
①Low technical grade, low level, serious duplication of production, and poor economies of scale;
②The product quality is not high, the performance is unstable, the consistency is poor, the service life is short, and the failure rate is high;
③ The research and development ability is low, and the system supporting production capacity of online monitoring instruments is low, which cannot meet the needs of the market.
Gas detector
The gas detector is an instrumentation tool for gas leakage concentration detection. The gas detection instrumentation converts the physical or chemical non-electrical signals collected by the gas sensor into electrical signals, and then processes the above electrical signals through external circuits such as rectification and filtering. And through these processed signals, the corresponding modules are controlled to realize various specific functions of gas detection. The gas detector can detect various gases such as hydrogen sulfide, carbon monoxide, oxygen, sulfur dioxide, phosphine, ammonia, nitrogen dioxide, hydrogen cyanide, chlorine, chlorine dioxide, ozone and combustible gases.
According to the difference in the field of use of gas detection instruments, gas detection instruments are mainly divided into two series: industrial gas detection instruments and civil gas detection instruments. Industrial gas detection instruments are divided into three categories: portable, fixed and system. Industrial gas detection instruments and meters are mainly used in petroleum, chemical, metallurgy, coal mines, liquefied gas and other enterprises; civil gas detection instruments and meters are mainly used for gas detection and alarm in public places and households.
