As an important place to protect people’s health, the stability of its power supply is crucial, for this reason, many hospitals are equipped with generator sets to ensure that they can start immediately in the event of a sudden power failure to ensure the normal operation of hospital equipment. However, the standby generator set will produce a certain amount of exhaust gas during operation, including nitrogen oxides (NOx), which will pose a threat to the environment and human body if it is not directly treated and discharged. Therefore, the effective discussion and implementation of NOX denitrification treatment technology is of great significance to realize the green development of hospitals.
The operation of internal combustion engines and industrial boilers produces nitrogen oxides, including various forms of compounds such as nitric oxide (NO) and nitrogen dioxide (NO2). In the working process of the standby generator set in the hospital, the high temperature generated by fuel combustion makes nitrogen and oxygen in the air react chemically to generate nitrogen oxides. These gases are discharged into the atmosphere, which will form photochemical smog and react with other substances, causing harm to human health and the environment.
In order to reduce nitrogen oxide emissions, the hospital standby generator set also needs to adopt effective denitrification technology. At present, the commonly used denitrification technologies include selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR). SCR denitrification technology uses ammonia or urea to reduce NOx to N2 and H2O at a certain temperature and under the action of catalysts, while SNCR technology directly sprits the reducing agent into the combustion area without the action of catalysts. Through high temperature to produce a chemical reaction to achieve the effect of denitrification.
SCR denitration technology has high denitration efficiency (denitration efficiency can reach more than 90%) and low by-product generation, and is widely used in the exhaust gas treatment of standby generator sets in hospitals. A hospital adopted the SCR denitrification system to effectively reduce nitrogen oxide emissions through precise control of the amount of reducing agent injection and the temperature of the catalyst, which not only met the strict requirements of the state for hospital environmental protection emissions, but also highlighted the green operation of the hospital to establish a good image. The hospital should also strengthen the daily maintenance and management of the standby generator set, but also regularly check and maintain the combustion system, optimize the combustion parameters, effectively reduce the production of nitrogen oxides, through the effective real-time control of the operating state of the generator, you can find problems in time and make adjustments to ensure the best operating state of the denitration system.
Through these comprehensive measures, we can expect to make a positive contribution to protecting the environment while safeguarding hospital services.
Post time: Mar-08-2024