过滤器的安装与维护

译文：
在运输、安装及使用过程中，要按照要求进行，以保证使用效果。各种过滤器在使用一段时间后，因滤料表面捕集了灰尘，从而使过滤器的效率和阻力下降，影响了送风的洁净度，此时需要及时加以更换过滤器。 对于需用于高湿度、高温度环境中的高效过滤器，必须选取耐高温、耐高湿度的滤纸与分隔板、框体材料，以满足生产的要求。生物洁净室和医药洁净室，必须选用金属框体的过滤器，且其表面要不易生锈，不允许使用木框板的过滤器，以防产生细菌，影响产品的合格率。 对于以上的过滤器，如果过滤器前后有压差表或压差传感器，则对粗效过滤器，当压差值大于250Pa时，必须加以更换；对中效过滤器，则压差大于330Pa时，必须加以更换；对于亚高效过滤器，则当压差值大于400Pa时，必须加以更换，且原过滤器不可再利用；对于高效过滤器，当过滤器的阻力值大于450Pa时；或当出风面气流速度降到最低限度 ，即使更换粗效、中效过滤器后，气流速度仍不能增大；或当高效过滤器表面出现无法修补的渗漏情况，均须更换新的高效过滤器；如没有上述条件，一般可根据使用环境条件情况，1—2年更换一次。 为了充分发挥过滤器的作用，在选用和使用过程中，过滤器的迎面风速，粗效、中效过滤器不应大于2.5m/s，亚高效过滤器和高效过滤器不应大于1.5m/s,这样不仅有利于保证过滤器的效率,也能延长过滤器使用寿命,节约成本.在设备运行时,一般不要更换过滤器;如因过滤器已到更换期限而无法停机更换,则只允许在不停风机情况睛更换粗、中效过滤器；亚高效过滤器和高效过滤器必须停止送风后，方可更换；过滤器与连接框架之间的密封垫，必须严密、无泄露，以保证过滤效果。

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原文：
In the transport, installation and use of the process, according to the requirements in order to ensure the use of results. A variety of filters in use for some time, due to the surface trapping of the dust filter, so that the filter efficiency and the resistance decreased, affecting the cleanliness of the air supply, this time the need for timely replacement of filters. For the need for high humidity, high temperature environment in the high efficiency filter, you must select the high temperature and high humidity-resistant filter paperInstrumentation Ball Valves and separate boards, frame body of materials to meet production requirements. Bio-clean room and medical clean room, you must use a filter metal frame body, and its surface should be easy to rust, wood-framed panels are not allowed to use a filter to prevent bacteria produce, may affect the pass rate. For the above filters if the filter pressure before and after tables or pressure sensors, then the effect of the coarse filter, when the pressure is greater than 250Pa, it must be replaced; in effect on the filter, then the pressure is greater than 330Pa, it must be replaced; for the sub-high efficiency filter, then when the pressure is greater than 400Pa, it must be replaced, and the original filter is not re-use; for high efficiency filter, when the resistance of the filter when the value is greater than 450Pa ; or when the surface wind flow speed Needle & Gauge Valves to a minimum, even if the replacement of coarse-efficient, the efficiency filters, the air flow rate can not increase; or when the high efficiency filter can not repair the surface of the leakage shall be replacement of the high efficiency filters; if not the above conditions, the general environmental conditions in accordance with the use of 1-2-year cycles. In order to give full play to the role of filters in the selection and use of the process, the filter head-on wind speed, coarse efficiency, the efficiency filters should not be greater than 2.5m / s, sub-high efficiency filters and high efficiency filters should not be greater than 1.5 m / s, which is not only conducive to ensuring Instrument Manifolds the efficiency of filters can also be extended filter life and cost savings. in the device run-time, generally do not replace the filter; as a result of filter has come to replace the replacement deadline can not be shut down, then the only allows fans of the never-ending eye to replace coarse, medium efficiency filters; sub-filters and high efficiency filters to stop blowing before they are allowed to be replaced; filter frame and connection between the seals must be tight, no leakage to ensure the filtering effect.