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Ultraviolet disinfection lamp installation and quantity requirements?

by:LiangYueLiang     2020-03-18
Ultraviolet disinfection lamp is a very traditional and effective disinfection method, in the hospital and equipment factories, such as water treatment has been widely used, but in the use process is affected by many factors, especially the tube radiation intensity is low and improper application can affect disinfection sterilization effect. In order to ensure a satisfactory disinfection effect, in the use of our main implementation measures for the following installation and guidance. What are the installation requirements? We see together; A, installation height requirement? Both families also hospital, indoor pendant installation of average number per cubic meter of not less than 1. 5 w, and uniform distribution, hoisting height from the ground 1. 8 ~ 2. 2 m, make people breathing in the available irradiation range. Continuous illumination not less than 30 min, ultraviolet radiation intensity is inversely proportional with radiation distance, hanging is too high, influence the sterilization effect. If it is a surface disinfection, is apart from the radiation surface should be with 1 m advisable, sterilization. Ultraviolet disinfection is usually with wavelength of 253. From the ground 1 7 nm ultraviolet ray, installation. Around 8 m to 2 m high, 1. Within the scope of 2 meters illuminate the sterilization effect is good. Second, installed in what position is better? 1, radiation space problem: a lot of unit using ignore the effective space range of uv irradiation, only consider the plane area and calculate the irradiation. Every space of the disinfection, in addition to the area factor, have high low, the total space have greatly small, use sterilization lamp should calculate the total space cubic adopts corresponding power of , a 30 w uv lamp effective sterilization space range should be less than 30 cubic meters, it is generally believed that each cubic meter of space power should be greater than 1 1. 5 w, in use should be noticed. 2, hanging distance: use should be paid attention to by disinfection and uv germicidal lamp irradiation distance object, namely ultraviolet lamp ride height should be less than 2. 5 meters, some units used ride height is greater than 2. 5 meters, even greater than 3, 4 m. Is inversely proportional to the intensity of ultraviolet irradiation and irradiation distance is almost, hanging is too high, is bound to affect the effect of sterilization. 3, ultraviolet radiation intensity recession: are used as the extension of time, the radiation intensity will gradually decline. Through measured in many ways, the general domestic better in use after 5000 hours, it need to be replaced, the overseas import uv disinfection lamp, the United States imported lightsources service life can reach 12000 hours or more need to change the bulb. Third, the number of installation? According to the ministry of health issued 'technical standard for disinfection, third edition, volume 2 ( Hospital disinfection specification) Regulation, indoor pendant installation number ( 30 w ultraviolet light, radiation intensity in vertical 1 m higher than 70 & mu; W/cm2) For the average per cubic meter of not less than 1. 5 w, and uniform distribution, hoisting height from the ground 1. 8 ~ 2. 2 m, make people breathing in the available irradiation range. Continuous illumination not less than 30 min, ultraviolet radiation intensity is inversely proportional with radiation distance, hanging is too high, influence the sterilization effect. If it is a surface disinfection, lamp is apart from the radiation surface should be with 1 m advisable, sterilization.
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