Safety valve selection: 1. High temperature and high pressure safety valve, the general choice of open all-spring Italy OR series; 2. Liquid medium air conditioning, the general selection of micro-spring-type safety valve air spring series; 3. Air or other gas medium Air-conditioning safety valve, the general selection of fully enclosed spring-loaded safety valve; 4. Liquefied petroleum gas tank car or liquefied petroleum gas railway tank truck with air-conditioning safety valve, the general use of Kai-type built-in air-conditioning safety valve; Air-conditioning safety valve, the general selection of pilot-operated air-conditioning safety valve; 6. Steam generating equipment, high-pressure bypass air-conditioning safety valve, the general use of safety and control dual function pilot-operated air-conditioning safety valve 7. If required to air- Test, should be selected with a wrench air conditioning safety valve. When the media pressure reaches more than 75% of the cracking pressure, lift the valve flap slightly from the valve seat to check the flexibility of the air conditioner safety valve. 8. If the medium temperature is high, in order to reduce the spring chamber Of the temperature, usually when the closed Italian OR air-conditioning safety valve temperature exceeds 300 ℃ and open air-conditioning safety valve temperature exceeds 350 ℃, should be used with air conditioning safety valve radiator; 9. If the air conditioning relief valve outlet back pressure is Change, the amount of change more than 10% of the opening pressure, air conditioning and air conditioning safety valve should be used; 10. If the medium is corrosive, air conditioning safety valve should be used to prevent important parts due to media corrosion failure.
Ultrasound (US) and chlorine dioxide (ClO(2)) were combined sequentially in an aim to improve Wastewater Disinfection. Results demonstrated that the combined effect of US and ClO(2) on Escherichia coli (E. coli) and total coliform (TC) inactivation in raw wastewater was synergistic involving high removal of bacteria from the solution. A sequential combination of US (150 or 300 W/L) and ClO(2) (2 mg/L) provided about 3.2-3.5 log reduction in the number E. coli and TC in raw wastewater, while the sum of log reductions by the individual treatments were 1.4-1.9. However, the measured inactivation rate with the combination of ultrasound and ClO(2) in synthetic wastewater or secondary effluent was the same as the sum of the log inactivations with individual treatments. The enhancement attained by combined US and ClO(2) disinfection methods was attributed to the presence of high concentration of particles in raw wastewater and their break up under shock sound waves.
Secondary Water Supply Disinfection
Chlorine Dioxide Generator For High-Rise Building, Chlorine Dioxide Generator For Hotel, Secondary Water Distribution, Water Supply Secondary Disinfection
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