通风管道标识风压改如何计算?
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            通风管道标识风压改如何计算?
            来源:m.inight.cn 2017-06-27 18:35:30
            通风管道标识风压计算的方法是什么呢?,长距离掘进巷道通风时风筒进风口和出风口会有大的风量差和风压差。为了选择合理的风机通风,需要研究风筒中风量、风压的变化规律。
            What is the method of identifying wind pressure in ventilation ducts? The ventilation inlet and air outlet of the air duct will have large air volume difference and wind pressure difference when the ventilation of the roadway is prolonged. In order to select reasonable ventilation of fan, it is necessary to study the variation law of air volume and wind pressure in the air duct.
            常规方法是利用经验或实验得到风筒接头平均漏风量,从而计算进风口的风量和风压。但对于长距离通风且每段风筒较小时该方法所计算的参数偏小,会对风机选型造成误差。
            The conventional method is to use the experience or experiment to obtain the average air leakage of the air duct joint, so as to calculate the air volume and the air pressure of the air inlet. But for the long distance ventilation and each section of the air duct is smaller, this method calculates the parameter is too small, will cause the error to fan selection.
            通风管道标识风压计算根据风量、风压平衡定律,按照非连续性通风网络模型推导出了进风口的风量、风压与出风口处的关系,并给出了简化的近似关系,作为风筒通风参数计算的新方法。结合具体实例,发现参数近似值与精确值高度相似,说明可以利用近似关系进行计算,简单方便;同时比较了按新方法和常规方法计算的风筒进风风量和通风阻力的差异,结果表明长距离掘进巷道的风量风压按新方法计算更为科学。
            According to the calculation of air pressure ventilation pipeline identification, air pressure equilibrium law, in accordance with the non continuous ventilation network model derived the inlet air flow and air pressure and the relationship between the air outlet, and gives the approximate relationship between the simplified, a new calculation method of air duct as parameters. With specific examples, find approximate height and exact values of parameters are similar, can be used to calculate the approximate relationship, simple and convenient; and to compare the hairdryer according to the new method and the conventional method of calculation of air quantity and the ventilation resistance. The results show that the long distance wind pressure driving lane according to the new method is more scientific.
            通风机是量大面广的耗能设备,为了节省通风机能耗减少运行成本,当前应当重视通风空调系统优化技术,实现降低系统通风管道压降和节耗,合理匹配和优化运行调节。
            Fan is the large volume of energy consuming equipment, in order to save the energy consumption of the fan operation to reduce the cost of current, we should optimize the technology of ventilation and air conditioning system, ventilation system can reduce the pressure drop and energy saving, reasonable matching and optimization of operation regulation.
            笔者从通风机售后服务现场发现,之前业主认定通风机质量问题,到通风机使用现场调查,结果有相当部分是通风系统设计、制造、安装不合理而导致通风机运行不正常,出现通风机性能达不到设计要求,振动噪声超标,叶片断裂等问题,通风系统经合理改造后,通风机运行正常了。
            The author from the fan customer service service found at the scene, before the owners found the fan to fan the use of quality problems, field investigation, results in a considerable part of the ventilation system design, manufacture and installation of unreasonable fan operation is not normal, appear fan performance is not up to the design requirements of vibration and noise, exceed the standard, blade fracture etc. the reasonable ventilation system, after the transformation, the fan is running normal.
            本文由济南通风管道友情奉献.更多有关的知识请点击:http://m.inight.cn最真诚的态度.为您提供最为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.
            This paper by Ji'nan ventilation pipe friendship devotion. More related knowledge: Please click on the http://m.inight.cn the most sincere attitude. For you to provide the most comprehensive services. More related knowledge and we will continue to offer. Please look forward to.

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