# 澳门新萄京赌场网址【澳门葡萄京官方网站】 #### 当前位置：澳门新萄京赌场网址-资讯中心 > 资讯中心

First, the definition of key words

In order to find the various loops of the duct system conveniently according to the logical relationship between the nodes, we numbered each node, and the number of the nodes is assumed as follows: the node number is numbered to the node according to the decreasing direction of the air volume, or the node number of the air supply system increases along the air flow direction.

Two, the automatic sorting of each loop of the ventilation pipe system

The automatic sorting of each loop of the ventilation pipe system is the precondition for the automatic calculation of the resistance balance and one of the key steps of the program. The process is in fact the process of sorting automatically according to the resistance loss of each loop. By sorting, the following two problems can be solved well: 1. It can be selected directly according to the ranking results. Take the most adverse loop of the system; second, reduce the repeated calculation of the resistance balance of each loop. The specific implementation steps of the automatic sequencing of each loop are as follows: (1) the terminal node is selected automatically; secondly, the loop path corresponding to each end node is searched in turn and the resistance loss value is calculated synchronously; 3. All loops are arranged according to the resistance loss value from large to small.

Three, the balance of resistance in each loop

The resistance balance is the most tedious and the most important step in the design of the whole wind pipe. In this order, the loop is balanced by the order of the drag value of the loop from large to small, and the pipe section which has already entered the balance is no longer adjusted, which can better solve the repeated calculation problem in the balance process. In order to facilitate the calculation, we assume that The ratio of resistance values before and after adjustment in the duct branch is constant, and the relationship between the diameter and resistance value before and after adjustment is:

d=d(p/p)0.225.d:阻力平衡前后风管支路的管径;p、p:阻力平衡前后较不利环路上对应风管支路的阻力值.

D=d (p/p) 0.225.d: the diameter of the branch of the duct before and after the resistance balance; the resistance value of the corresponding wind pipe branch on the most unfavorable loop before and after P and p: resistance balance.

When the resistance balance is automatically calculated, the adjusted pipe path and the resistance loss value in the loop are removed, and the pipe diameter d after the resistance balance is calculated in the unadjusted branch press, and the corresponding velocity V and the pipe resistance delta P. are calculated by D.

I believe that this article, after the introduction of the Shandong ventilation pipeline , will also have their own understanding of this aspect, and the following problems can be well solved.

• 澳门新萄京赌场网址【澳门葡萄京官方网站】   企业地址：济南市藏石路305号    电话：13969100493  QQ:493376408
• 本网站由济南诺商提供技术支撑  邮箱：493376408@qq.com  流量统计：
• 澳门新萄京赌场网址图片均由网站所有方提供，部分图片来源于网络，如有任何疑问请第一时间与大家联系，未经沟通澳门新萄京赌场网址不承担相关法律责任！