铝壳表检定数据

对于不同的铝壳表，由于表的结构不同，关键指标压力损失阈值也是随之变化的，通过表的型号、最大流量、是否有带有阀门、进气方式等进行综合运算预估，从而判断实际压力损失是否在阈值以内。通过对检定数据的处理和分析，能够大大提高及时发现不合格产品的效率，减少不良品进入市场的风险，从而提升整体产品合格率，降低召回和维修成本，还能够对新产品开发中阀门设计、进气方式等进行针对性改良。1、数据采集：公司自行研发、设计、生产的铝壳表，采集包括铝壳表基本数据，表号、表型号的数据，采样当天的环境数据，包括大气压力、环境温度、相对湿度数据，检定数据，包括外观、气密性、示值误差、压力损失等；2、数据处理：将数据进行清洗，依据表型号，从后台自动生成最大流量数据，将错误、重复数据去除；3、数据加工：通过对已知数据的综合分析和计算对铝壳表的压力损失阈值进行预估，压力损失阈值计算公式为：当铝壳表不带阀门时，压力损失阈值为（Qmax+100）*2，当铝壳表带阀门时，压力损失阈值为（Qmax+100）*2.4，实际压力损失小于等于阈值符合要求；Qmax、0.2Qmax、Qmin的示值误差≤3%，同时外观、气密性也符合要求，则检定结论为合格。如果压力损失、示值误差、外观、气密性中有一项不符合要求，则结论为不合格。其中Y代表符合，N代表不符合，进气方式L代表左侧进气，R代表右侧进气。

For different aluminum-shell meters, the critical pressure loss threshold as a key indicator varies with the meter's structure. It can be estimated through comprehensive calculation based on factors such as the meter's model, maximum flow rate, whether it is equipped with a valve, and air intake mode, so as to determine whether the actual pressure loss is within the threshold range. By processing and analyzing verification data, the efficiency of timely detecting unqualified products can be greatly improved, the risk of defective products entering the market can be reduced, thereby increasing the overall product pass rate, lowering recall and maintenance costs, and enabling targeted improvements of valve design, air intake mode and other aspects during new product development.
1. Data Collection: For aluminum-shell meters independently developed, designed and produced by the company, collect basic data of aluminum-shell meters including meter serial number and meter model; environmental data on the sampling day including atmospheric pressure, ambient temperature and relative humidity; and verification data including appearance, air tightness, indication error, pressure loss and other items.
2. Data Processing: Clean the collected data, automatically generate maximum flow rate data from the backend based on the meter model, and remove erroneous and duplicate data.
3. Data Processing & Calculation: Estimate the pressure loss threshold of aluminum-shell meters through comprehensive analysis and calculation of known data. The pressure loss threshold calculation formula is: when the aluminum-shell meter is not equipped with a valve, the pressure loss threshold is (Qmax + 100) * 2; when the aluminum-shell meter is equipped with a valve, the pressure loss threshold is (Qmax + 100) * 2.4. Actual pressure loss meets the requirement if it is less than or equal to the threshold. If the indication errors at Qmax, 0.2Qmax and Qmin are all ≤3%, and the appearance and air tightness also meet the requirements, the verification conclusion is "qualified". If any one of pressure loss, indication error, appearance and air tightness fails to meet the requirements, the conclusion is "unqualified". Where Y stands for qualified, N for unqualified, L represents left-side air intake, and R represents right-side air intake.

搜集汇总

数据集介绍

特点

该数据集为铝壳表检定数据，由浙江蓝宝石仪表科技有限公司自行产生，包含1010条记录，每日更新。数据涵盖多个关键性能指标，如最大流量、压力损失等，用于评估铝壳表的性能，提高产品合格率并支持新产品开发。