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  • 无菌制剂洁净车间的净化设置要点
    来源: 浏览: 发布日期:2020-08-21
    机械循环热水采暖系统是以水泵为循环动力,不受锅炉房位置高低及系统作用半径的限制,且管中流速也比自然循环系统大。现在,绝大多数民用建筑物都普遍采用。系统所带的环路、支立管数均多,成为一个闭式的循环热水网,是一个复杂的水力系统。循环泵的压头完全消耗在克服系统阻力上。设应使热媒流量按计算负荷分配到备用户、各支立管或散热器中,这一点十分重要。处理得好,系统运行时就很容易调节.处理不好,-将成为系统水力不平衡的先天缺陷,会产生各种暖气不热的现象。
    The mechanical circulating hot water heating system takes the water pump as the circulating power, which is not limited by the position of the boiler room and the radius of the system, and the flow velocity in the pipe is larger than that in the natural circulation system. Now, the vast majority of civil buildings are widely used. The system is a closed circulating hot water network, which is a complex hydraulic system. The pressure head of the circulating pump is completely consumed in overcoming the system resistance. It is very important that the heat medium flow should be distributed to standby users, risers or radiators according to the calculated load. If it is handled well, it will be easy to adjust when the system is running. If it is not handled properly, - it will become a congenital defect of the hydraulic imbalance of the system, and various heating phenomena will occur.
    其次,在热水采暖系统中,空气是更有害的因素。当管道中有空气积存时,往往要影响热水的正常循环,造成某些部分不热。实践证明,正确的负荷计算和设备选择是设计采暖的前
    Secondly, in the hot water heating system, air is the most harmful factor. When there is air accumulation in the pipeline, the normal circulation of hot water is often affected, resulting in some parts not hot. It has been proved by practice that correct load calculation and equipment selection are prior to heating design
    提。但布置一个平衡的系统和有效的排除空气是保证热水采暖系统正常运行的关键。
    It's a good idea. However, the key to ensure the normal operation of the hot water heating system is to arrange a balanced system and effectively remove air.
    级区实现静态非单向流5级和动态非单向流7级的空气净化系统方式可有以下几种。 (1)双系统送风方式
    There are several ways to realize static non unidirectional flow level 5 and dynamic non unidirectional flow level 7 in stage area. &(1) dual system air supply mode
    当动、静态换气次数相差较大时,可按动态、静态分设两个系统:
    When there is a big difference between the dynamic and static ventilation times, two systems can be set up according to the dynamic and static conditions
    动态换气次数下1个系统运行,有新风、有回风,系统内有空调设备。
    Under dynamic ventilation rate, one system operates with fresh air and return air, and air conditioning equipment is installed in the system.
    空气净化工程
    静态换气次数下另1个系统也运行,只有室内自循环,换气次数按:静态换气次数一动态换气次数选用。系统内无空调设备。
    Under the static ventilation rate, the other system also operates, only indoor self circulation. The air change rate is selected according to static air change rate and dynamic air change rate. There is no air conditioning equipment in the system.
    动态时风口少,静态时风口多。
    There are few tuyeres in dynamic state and more in static state.
    单系统送风方式
    Single system air supply mode
    系统和风口按静态换气次数设计。通过变频,在动态时下调风量。
    The system and tuyere are designed according to the static ventilation rate. Through frequency conversion, the air volume is reduced in dynamic state.
    单系统送风加自净器方式
    Single system air supply with self purifier
    ①柜式自净器设于墙板后面夹道中,上侧送风,同侧下回风,见图7-20。
    ① The cabinet type self purifier is installed in the corridor behind the wall panel, with air supply on the upper side and return air at the lower side on the same side, as shown in Fig. 7-20.
    ②柜式自净器设于室内,见图7-21。
    ② The cabinet type self purifier is installed indoors, as shown in Fig. 7-21.
    ③任何自净器按可能位置布于室内。
    ③ Any self purifier should be placed indoors according to possible location.
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