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工厂房在通风管道的使用上有什么特点?

发布人:http://www。sftfgd。com   发布时间:2017-10-31 15:34:36

一、进气短流问题:所谓进气短流,指的是由进气口进入厂房内的新鲜空气,在没有进入作业区范围之前,就已经被加热而上升至天窗排气口排出室外的现象。这样的进气,起不到改善作业区热环境以及提高作业区空气质量的作用。所以,为提高工业厂房的自然通风效果,一定要尽可能地避免这种进气短流的现象。

A short, intake flow: the so-called short inlet flow, the inlet into the factory in the fresh air, before entering the scope of work area, has been heating up to the roof vent exhaust phenomenon. Such air intake can not improve the thermal environment in the work area and improve the air quality in the work area. Therefore, in order to improve the natural ventilation effect of industrial buildings, it is necessary to avoid the short flow phenomenon as far as possible.

二、通风天窗的飘雨问题:不良的口部设计常常造成通风排气天窗严重飘雨的问题,给生产造成一定规模的损失。厂房自然通风设计,解决了厂房的通风排气问题,却带来了飘雨的弊端,致使厂房内的作业区功能受到影响。所以,设计中需要针对性的进行解决。

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Piaoyu problem two: ventilation skylight mouth often causes poor design of exhaust ventilation skylight Piaoyu, causing losses to the production scale. Design of natural ventilation, to solve the problem of building ventilation, but bring Piaoyu drawbacks, resulting in functional area within the plant affected. Therefore, the design needs to be targeted to solve.

现在一般常用的是矩形通风天窗,通常设计中采用,矩形通风天窗或在天窗水平口设挡雨片,或在天窗垂直口设挡雨板,其中在水平口设挡雨片的做法,不管在通风效果还是防飘雨效果,都较为理想,因此在工业厂房中得到了比较广泛的应用。

It is usually used in rectangular ventilation skylight, usually used in the design of rectangular ventilation skylight or a rain guard at the roof level, or the rain on the roof vertical plate, wherein the rain flakes in the level of export, regardless of the effect of ventilation or anti Piaoyu effect are ideal, so it has been widely used in industrial plants.

三、进、排气口的面积:厂房自然通风是利用厂房内外空气的温度差所形成的热压作用和室外空气流动时产生的风压作用,使厂房内外空气不断交换,形成自然通风。但由于风压作用受自然条件限制,具有多变性,无风时即无风压作用,所以不宜作为厂房自然通风的动力考虑。在厂房自然通风设计中,一定要合理协调进、排气口面积,力求进气口面积不小于排气口面积,这应该是提高自然通风效果的极为重要和有效的技术措施。

Three, inlet and outlet area: building natural ventilation is the wind pressure generated pressure and outdoor air flow difference formed by inside and outside plant air temperature when the air inside and outside the plant, continuous exchange, natural ventilation。 But the wind pressure is limited by natural conditions, and it is changeable and has no wind pressure when there is no wind, so it should not be considered as the motive force of the natural ventilation of the factory building。 In the design of natural ventilation, must reasonable coordination between the inlet and outlet area to inlet area of not less than the exhaust port area, it should be very important and effective technical measures to improve the effect of natural ventilation。

此外,在厂房自然通风设计中,存在一个误区,即一提到自然通风,就只是与热车间有关的事情。因冷加工厂房内不散发余热或者仅散发的热量很小,使当前按热压作用进行自然通风设计工作失去了依据,所以也就很少有人考虑冷加工厂房的通风换气问题。

In addition, there is a mistake in the natural ventilation design of the factory, that is to say, the natural ventilation is only related to the thermal workshop. Because of the cold processing plant is not only the heat or heat emission is very small, so that the current according to the pressing effect of natural ventilation design of the basis of lost, so there are few people to consider the ventilation of the cold processing plant.

虽然厂房内散发的生产余热很小,然而,因为屋面辐射热和通风换气不良,会造成厂房内部污染气体汇集,同时新风不能及时补充,会对作业区人员的工作效率造成严重影响。所以,对于南方地区及北方夏热地区的冷加工厂房,除了一定要设置屋面隔热层之外,设计上还要创造良好的通风换气条件。

Although the production of waste heat emitted in the plant is very small, however, because the roof radiant heat and poor ventilation, will cause internal plant pollution gas collection, and fresh air can not be timely supplement of the work area, will seriously affect the work efficiency of personnel. Therefore, for the cold processing plants in the southern and Northern hot summer areas, besides the roof insulation layer, the design should also create good ventilation conditions.

有了上面的济南通风管道小总结,希望对广大客户有所帮助,如果有什么不理解的或者寻求帮助的请点击我们的官方网站:http://www.qyyl789.com/或者来电咨询,我们会尽全力为您解决

With the above Ji'nan ventilation pipeline small summary, hope to help customers, if what you do not understand or seek help please click on our official website: http://www.qyyl789.com/ or contact us, we will do our best for you to solve


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