JB/T 53288-1999
Mine Local Ventilator Product Quality Grading (Internal Use)
矿井局部通风机 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 抽样方法 → 6 评定方法 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grade → 4 Test and Inspection Methods → 5 Sampling Method → 6 Evaluation Method → Appendix A
Scope
This standard specifies the quality grades, test and inspection methods, sampling and evaluation methods for mine local ventilators. This standard applies to mine local ventilator (hereinafter referred to as fan) products specified in JB/T 9100—1999 "Mine Local Ventilator Technical Conditions".
本标准规定了矿井局部通风机的质量等级，试验与检验方法，抽样及评定方法。本标准适用于JB/T 9100—1999《矿井局部通风机 技术条件》规定的矿井局部通风机（以下简称风机）产品。
Normative References
Keywords
Application Summary AI generated
Manufacturers of mine ventilation equipment and quality inspection agencies use this standard to classify mine local ventilators into quality grades. They conduct tests, inspections, and evaluations based on the assessment items and indicators in this standard to determine whether a product is qualified, first-class, or superior. This standard is important for ensuring mine ventilation safety, improving equipment reliability, and promoting product quality enhancement.
矿山通风设备制造商和质检机构使用本标准来对矿井局部通风机进行质量等级划分。他们依据本标准中的考核项目和指标，对产品进行试验、检验和评定，以确定产品属于合格品、一等品还是优等品。该标准对于确保矿井通风安全、提高设备可靠性和促进产品质量提升具有重要意义。
AI Summary AI generated
This standard JB/T 53288-1999 specifies the product quality grading requirements for mine local ventilators, classifying products into three grades: qualified, first-class, and superior. It details assessment items for each grade, including maximum total pressure efficiency, total pressure deviation, noise, balance quality grade, vibration velocity, and other key indicators with specific numerical requirements. It also specifies test and inspection methods, sampling and evaluation methods, requiring products to meet all assessment items for the corresponding grade, and if indicators are inconsistent, the grade is determined by the lowest item.
本标准JB/T 53288-1999规定了矿井局部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。标准详细列出了各等级的考核项目，包括最高全压效率、全压偏差、噪声、平衡品质等级、振动速度等关键指标，并给出了具体的数值要求。同时规定了试验与检验方法、抽样及评定方法，要求产品必须满足所有考核项目才能评为相应等级，若指标不一致则按最低项评定。
Key Sentences extracted from text
本标准规定了矿井局部通风机的质量等级，试验与检验方法，抽样及评定方法。
风机产品根据其质量水平和使用价值分为合格品、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）转子动平衡品质等级。
判定风机产品质量分等，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。
若产品的各项指标达到的等级不一致时，按其中达到的最低某项指标评定等级。
This standard specifies the quality grades, test and inspection methods, sampling and evaluation methods for mine local ventilators.
Fan products are divided into three grades: qualified product, first-class product, and superior product, based on their quality level and use value.
The pass rate of key items for main fan components shall reach 100%, and the assessment items are: a) fit dimensions with rolling bearings; b) rotor dynamic balance quality grade.
To determine the quality grade of a fan product, it must meet the technical requirements of all assessment items for that grade to be rated as that grade.
If the indicators of the product reach inconsistent grades, the grade shall be determined by the lowest indicator achieved.
Standard Timeline
Changes from replaced version:
- 引用标准更新：用JB/T 9100—1999代替ZB J72 042，JB/T 8689—1998代替JB/TQ 334等
- 产品质量等级指标修改：机号分组做了适当调整
- 全压偏差、噪声、平衡品质等级和振动速度有效值等指标做了适当修改
- Updated normative references: replaced ZB J72 042 with JB/T 9100—1999, replaced JB/TQ 334 with JB/T 8689—1998, etc.
- Modified product quality grade indicators: adjusted the grouping of fan sizes appropriately
- Modified indicators such as total pressure deviation, noise, balance quality grade, and vibration velocity effective value