Under the influence of the epidemic, many "price sensitive" travelers are turning to "safety sensitive", and travel safety has become a very concerned issue for current travelers. "I'd rather pay a little more than book a room with individual air conditioning." In the past March, the number of business class and first class bookings with less passenger density increased by 46% compared with February, much higher than the 34% growth rate of economy class, and the "peace of mind" products with higher check-in standards accounted for 80% of hotel orders. And the "non-central air conditioning room" has become a hot search room type, do not know that everyone knows how to cut? This article by HVAC clean room design and installation of small edition reprinted on the Internet.

It is understood that the recent online travel agency's new "non-central air conditioning" hotel is to meet the needs of many users for independent air conditioning. According to data from Qunar, more than 5,000 hotels across the country have launched "non-central air-conditioned rooms", and since the launch of the week, the relevant search volume has increased by 17 times, becoming one of the more popular room types on the platform. Now it is the middle of May, the early summer season, the temperature will gradually rise, everyone is concerned about whether office buildings, public places, etc., can turn on central air conditioning, or how to use central air conditioning during the epidemic period, may I ask whether there is a unified standard?

Central air conditioning in summer seems to be a very specific thing, but for the hot weather in the South, it is closely related to everyone's work and life, and therefore it is also a major event related to the economic and social order. A few days ago, Shanghai, Zhejiang, etc., put forward guidelines on the use of central air conditioning, the use of central air conditioning, should increase the volume of fresh air, strengthen ventilation. Among them, when the central air conditioner of the all-air system is used, the return air should be turned off. When using central air conditioners, measures such as cleaning, disinfection or replacement of relevant equipment components should be implemented in accordance with regulations. For the use of central air conditioning standards, all localities also need to study and formulate detailed rules from the actual situation. Central air conditioning has always been the focus of everyone's concern, recently about "central air conditioning or into a new channel of virus transmission" speech is very noisy, everyone talking about "central air conditioning" will be very afraid, today let Xiaobian to help you take a good look ~

Central air conditioning is a new virus transmission channel?

First of all, will central air conditioning become a new channel of transmission of the virus? The key depends on the type of central air conditioning. Central air conditioning can be divided into three categories: fan coil + fresh air systems, multiple central air conditioning systems (VRF) and all air air-conditioning systems. The first two categories - "fan coil + fresh air system" and "multi-connected central air conditioning system (VRF)", are characterized by air circulation can be carried out in different areas alone, there is no circulation with other areas of air, and the risk of cross infection is small. If there are no confirmed or suspected cases in the area, it is safe to use. The third type of all-air air conditioning system, its working principle is to first process the air, reduce the temperature and humidity, through the pipeline air supply port to the various areas of the building, and through the return air port, the pipeline back to the air handling unit. Since each room is connected through the air duct, the air in each room is mixed, so once an employee carries the virus, it is possible to cause the infection of the entire floor. In this case, you need to turn off the air conditioner on this floor for isolation, and the air conditioners on other floors can be used normally.

How to use central air conditioning safely?

Although various units have issued various operational guidelines on how to turn on central air conditioners during the epidemic to tell others how to turn on air conditioners, professionals are required to maintain them, whether it is to understand the types of central air conditioners in their buildings, or to set the switch Settings of return air and fresh air. The maintenance of central air conditioning can not fundamentally solve the safety risks of "hiding poison" in the air. Only through the transformation of professional air conditioning disinfection modules can the problem of air cross transmission be solved, and the risk of air transmission can also be effectively reduced during the flu season. General clean workshop design and installation of professional central air conditioning transformation program includes the overall project program from air environment exploration, product selection and construction, indoor air real-time monitoring and system cleaning operation and maintenance.