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通风管道局部通风措施?

发布人:   发布时间:2020-02-13 20:53:46


通过通风改善车间的空气环境。一方面,不符合卫生标准的污染空气被排放到室外的局部场所或整个车间;另一方面,满足卫生要求的新鲜空气或净化空气进入室内区域。
  Improve the air environment of the workshop by ventilation. On the one hand, the polluted air that does not meet the hygiene standard is discharged to the outdoor local place or the whole workshop; on the other hand, the fresh air or purified air that meets the hygiene requirements enters the indoor area.
  在有害物质集中的地方设置捕集装置,将有害物质排出,控制有害物质在室内的扩散。这种通风方法称为局部排气。这是最有效的通风防毒排尘方法。
  A catching device shall be set up in the place where harmful substances are concentrated to discharge harmful substances and control the diffusion of harmful substances in the room. This ventilation method is called local exhaust. This is the most effective method of ventilation, gas prevention and dust removal.
  局部排气系统由以下部分组成:
  The local exhaust system consists of the following parts:
  (1)局部排气罩
  (1) Local exhaust hood
  部分排气罩用于捕获有害物质。其性能的好坏直接影响到局部排气系统的技术经济指标。局部排气罩具有良好的性能,如密封面,只要风量小即可获得良好的工作效果。由于生产设备和操作的不同,排气罩的形式也多种多样。
  Some exhaust hoods are used to catch harmful substances. Its performance directly affects the technical and economic indexes of the local exhaust system. Local exhaust hood has good performance, such as sealing surface, as long as the air volume is small, good working effect can be obtained. Due to the different production equipment and operation, there are various forms of exhaust hood.
  (2)空气管
  (2) air pipe
  在通风系统中输送空气的管道称为风管。它们将系统的各种设备或组件连接成一个单元。为了提高系统的经济性,应合理选择风管内的气流速度,管径应短而直。风管通常由光滑的表面材料制成,如:薄钢、PVC板,有时也用混凝土、砖等材料制成。
  The ducts that carry air in the ventilation system are called ducts. They connect various devices or components of the system into a unit. In order to improve the economy of the system, the air velocity in the air duct should be reasonably selected, and the pipe diameter should be short and straight. Air ducts are usually made of smooth surface materials, such as thin steel, PVC board, and sometimes concrete, brick and other materials.

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  (3)除尘净化设备
  (3) Dust removal and purification equipment
  为了防止空气污染,当有害物质从空气中排放超过排放标准时,必须经过净化设备处理,达到排放标准后排放到大气中。净化设备分为除尘器和有害气体净化装置两类。
  In order to prevent air pollution, when harmful substances are discharged from the air beyond the emission standard, they must be treated by purification equipment and discharged into the air after reaching the emission standard. The purification equipment is divided into dust remover and harmful gas purification device.
  (4)风扇
  (4) fan
  风扇将空气的力量输送到机械排气系统。为了防止风机的磨损和腐蚀,通常将其放置在清洗设备的后面。
  The fan delivers the power of the air to the mechanical exhaust system. In order to prevent the abrasion and corrosion of the fan, it is usually placed behind the cleaning equipment.
  若仅对局部地方进行排风或送风,即局部通风;如果整个车间通风或供应,它是完全通风。通常,根据通风系统的功能范围不同,可分为局部通风、综合通风和事故通风。局部通风系统可分为局部进风口和局部排气两大类。它们都利用当地的空气流动,使当地的工作场所免受有害污染,创造良好的空气环境
  If only the local area is ventilated, that is, local ventilation; if the whole workshop is ventilated or supplied, it is fully ventilated. Generally, according to the different functional scope of ventilation system, it can be divided into local ventilation, comprehensive ventilation and emergency ventilation. Local ventilation system can be divided into local air inlet and local exhaust. They all use the local air flow to protect the local workplace from harmful pollution and create a good air environment
  以上就是vnsc5858威尼斯城官网对局部排气的详细先容,想要了解更多请点击官网
  The above is the detailed introduction of Shandong ventilation pipeline to local exhaust. For more information, please click 。

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