The Development Of Date Collection And Analysis Of Spring-loaded Safety Valve Off-line Test System

As an important safety valve to ensure that the pressure vessel equipment working properly,it is particularly important to work.When the check valve is working properly,we have a variety of verification methods,but the existing calibration methods are more or less there are some deficiencies.This article is concerned that this problem,combined with the practical problems Xinjiang Institute of Special Equipment Inspection existence,developed a suitable spring-loaded check valve actual offline verification system.This paper introduces,the existing valve offline verification methods,as well as existing calibration rig works,explained their problem.Then,the spring-loaded safety valve work process simulation analysis.CFX safety valve in the modeling,boundary conditions,load transient analysis,and ultimately obtain the physical parameters of the valve during operation of each of the curve with time.According to the calculated data,we can get off the valve when the valve body from the flow field will change occurs,the fluid force reaches the maximum,and fluctuations.At this time,there will be a safety valve to excessive vibrations.This article is the use of this feature when the valve opens,check the safety of the proposed new law approach.This is based on the acceleration and pressure transmitter line check valve system.Also details the method validation data collection system,and method for transmitting data.This paper uses a Siemens S200 series PLC,sensor data transmitted by the data acquisition module PLC,and in which the analysis and calculation,the result is then passed to the host computer.This paper not only introduces the PLC data collection methods,and also based on the principle of safety valve acceleration and displacement transducer calibration units,namely,how to determine the safety valve off time method to write the PLC program.On display control interface verification system of production,this paper uses a checksum platform interface VB6.0 programming language to build.On the control interface can be set safety valve calibration process and control.All calibration data and safety valve information is stored in SQL server 2000 database created.This article provides some of the main code.