JB/T 53276-1999
General Purpose Axial Flow Fans - Product Quality Grading (Internal Use)
一般用途轴流式通风机 产品质量分等 （内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品质量等级 → 4 试验与检验方法 → 5 抽样、评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for general purpose axial flow fan products. This standard applies to general purpose axial flow fan products (hereinafter referred to as fans) as specified in GB/T 13274—1991 'General Purpose Axial Flow Fans - Technical Conditions'.
本标准规定了一般用途轴流式通风机产品的质量等级，试验与检验方法和抽样、评定方法。本标准适用于GB/T 13274—1991《一般用途轴流通风机 技术条件》规定的一般用途轴流通风机产品（以下简称风机）。
Normative References
Keywords
Application Summary AI generated
Fan manufacturers and quality inspection departments use this standard to evaluate the product quality grades of general purpose axial flow fans. It establishes three quality levels—qualified, first-class, and superior—to help enterprises control production quality, perform product grading, and conduct factory inspections. This standard is important for ensuring fan performance, reliability, and fair market competition.
风机生产企业和质量检验部门使用本标准来评定一般用途轴流式通风机的产品质量等级。它通过设定合格品、一等品和优等品三个等级，帮助企业控制生产质量、进行产品分级和出厂检验。该标准对于确保风机性能、可靠性和市场公平竞争具有重要意义。
AI Summary AI generated
This standard JB/T 53276－1999 specifies the product quality grading requirements for general purpose axial flow fans, classifying products into three grades: qualified, first-class, and superior. It covers key assessment indicators such as total pressure internal efficiency deviation, total pressure and static pressure deviation, noise, balance quality grade, vibration velocity RMS, first overhaul period, and major item pass rate. The standard also specifies test and inspection methods (e.g., aerodynamic performance test, noise test, vibration detection) as well as sampling and evaluation methods, applicable to general purpose axial flow fans designed and manufactured according to GB/T 13274.
本标准JB/T 53276－1999规定了一般用途轴流式通风机的产品质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准涵盖了全压内效率偏差、全压及静压偏差、噪声、平衡品质等级、振动速度有效值、首次大修期和主要项目合格率等关键考核指标。同时规定了试验与检验方法（如空气动力性能试验、噪声试验、振动检测等）以及抽样和评定方法，适用于按GB/T 13274设计制造的一般用途轴流通风机。
Key Sentences extracted from text
本标准规定了一般用途轴流式通风机产品的质量等级，试验与检验方法和抽样、评定方法。
风机产品应按JB/T 13274 的规定设计、制造，根据其质量水平分为合格品、一等品和优等品三个等级。
风机主要零部件的关键项目合格率应达到100%，其考核项目为：a）与滚动轴承的配合尺寸；b）转子平衡品质等级。
全压内效率偏差、全压和静压偏差应在风机工作区域内考核。
评定风机产品质量等级，必须符合该等级全部考核项目的技术要求，才能评为该等级产品。
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for general purpose axial flow fan products.
Fan products shall be designed and manufactured in accordance with the provisions of JB/T 13274, and are divided into three grades: qualified product, first-class product, and superior product according to their quality level.
The pass rate of key items of main fan components shall reach 100%, and the assessment items are: a) matching dimensions with rolling bearings; b) rotor balance quality grade.
Total pressure internal efficiency deviation, total pressure deviation and static pressure deviation shall be assessed within the fan working area.
To evaluate the product quality grade of a fan, it must meet the technical requirements of all assessment items for that grade before it can be rated as that grade.
Standard Timeline
Changes from replaced version:
- 引用标准更新：新增GB/T 10178—1988，替换GB/T 13274—1991对应旧标准，更新JB/T 8689—1998、JB/T 8690—1998、JB/T 9101—1999等
- 产品质量等级指标修改：全压内效率偏差、全压及静压偏差、平衡品质等级、振动速度有效值、首次大修期和主要项目合格率等指标均做了适当修改
- Updated normative references: added GB/T 10178—1988, replaced old standards corresponding to GB/T 13274—1991, updated JB/T 8689—1998, JB/T 8690—1998, JB/T 9101—1999, etc.
- Modified product quality grade indicators: total pressure internal efficiency deviation, total pressure and static pressure deviation, balance quality grade, vibration velocity RMS, first overhaul period, and major item pass rate were appropriately revised.