JB/T 53140-1999
Fixed Vacuum Powder Insulated Cryogenic Liquid Storage Tank - Product Quality Grading (Internal Use)
固定式真空粉末绝热低温液体贮槽 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 产品质量等级 → 4 测试方法、检验规则 → 5 抽样和评定办法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test Methods and Inspection Rules → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grading, test methods, inspection rules, and sampling and evaluation methods for vacuum powder insulated cryogenic liquid storage tank products. This standard applies to the product quality grading of fixed vacuum powder insulated cryogenic liquid storage tanks manufactured in accordance with JB/T 9072-1999 "Fixed Vacuum Powder Insulated Cryogenic Liquid Storage Tank".
本标准规定了真空粉末绝热的低温液体贮槽产品的质量分等、测试方法、检验规则及抽样和评定办法。本标准适用于按JB/T 9072—1999《固定式真空粉末绝热低温液体贮槽》制造的固定式真空粉末绝热低温液体贮槽产品质量分等。
Normative References
Keywords
Application Summary AI generated
Manufacturers, quality inspection agencies, and users of cryogenic liquid storage tanks use this standard to grade the quality of fixed vacuum powder insulated tanks. It defines key performance indicators such as evaporation rate, service cycle, and safety, ensuring products meet acceptable, first-class, or premium quality levels. This matters because it promotes safety, reliability, and energy efficiency in the storage and handling of cryogenic liquids.
该标准由低温液体贮槽的制造企业、质量检验机构和用户使用，用于对固定式真空粉末绝热低温液体贮槽进行质量等级评定。它通过规定蒸发率、使用周期、安全性能等关键指标，确保产品达到合格、一等或优等质量水平，从而保障设备的安全可靠运行和节能效果。
AI Summary AI generated
JB/T 53140-1999 is a revision of the product quality grading standard for fixed vacuum powder insulated cryogenic liquid storage tanks, replacing JB/T 53140-94. It classifies products into three grades: qualified, first-class, and premium. Key assessment indicators include evaporation rate, service cycle, safety performance, and appearance quality. Evaporation rate limits are specified for different effective volumes and working media (e.g., liquid oxygen, liquid nitrogen), with service cycles ranging from 18 to 36 months. The standard also defines test methods, inspection rules, and sampling/evaluation procedures, providing a unified quality assessment framework for manufacturers and users.
本标准JB/T 53140-1999是对固定式真空粉末绝热低温液体贮槽产品质量分等的修订，替代了JB/T 53140-94。标准将产品分为合格品、一等品和优等品三个等级，主要考核蒸发率、使用周期、安全性能及外观质量等指标。蒸发率根据有效容积和工作介质（液氧、液氮等）规定了不同等级的具体限值，使用周期要求从18个月到36个月不等。标准还规定了测试方法、检验规则及抽样评定办法，为制造企业和用户提供了统一的质量评价依据。
Key Sentences extracted from text
本标准规定了真空粉末绝热的低温液体贮槽产品的质量分等、测试方法、检验规则及抽样和评定办法。
产品按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。
产品除应符合JB/T 9072、GB 150 的规定外，各等级的考核项目、指标要求按表1、表2和表3的规定。
蒸发率是指一日（24h）的蒸发损失占贮槽最大贮存量的百分率。
判定产品质量等级，必须符合该等级全部考核项目的分等指标，按达到的最低一项指标定等级，缺项不能判定产品质量等级。
This standard specifies the quality grading, test methods, inspection rules, and sampling and evaluation methods for vacuum powder insulated cryogenic liquid storage tank products.
Products are divided into three grades: qualified product, first-class product, and premium product, according to their quality level and use value.
In addition to complying with JB/T 9072 and GB 150, the assessment items and indicator requirements for each grade shall be in accordance with Table 1, Table 2, and Table 3.
Evaporation rate refers to the percentage of evaporation loss in one day (24h) relative to the maximum storage capacity of the tank.
To determine the product quality grade, it must meet the grading indicators for all assessment items of that grade, and the grade is determined by the lowest indicator achieved; missing items cannot be used to determine the product quality grade.
Standard Timeline
Changes from replaced version:
- 增加了“前言”、“引用标准”
- 对表1 贮槽蒸发率指标分等的液氧合格品作了修改，并且补充了有效容积为300，500，2000，3000，15000，75000L 等容量的蒸发率指标分等，使之与JB/T 9072—1999 一致
- 在第3章中增加了液体二氧化碳贮槽绝热性能（每24h 压力升高值）分等按各生产厂的标准进行的规定
- 对表2 使用周期和安全性等指标分等中将1.2p 改成1.15p，与现行的《容规》规定一致
- 取消了原附录A蒸发率测定方法，修改为蒸发率测定按JB/T 3356.1 的规定
- Added 'Foreword' and 'Normative References'
- Modified the qualified product grade for liquid oxygen evaporation rate indicators in Table 1, and added evaporation rate grading indicators for capacities such as 300, 500, 2000, 3000, 15000, 75000 L, to align with JB/T 9072-1999
- Added a provision in Chapter 3 that the insulation performance (pressure rise per 24h) grading for liquid carbon dioxide tanks shall follow each manufacturer's standard
- Changed 1.2p to 1.15p in Table 2 for service cycle and safety indicators, to align with the current 'Vessel Regulation'
- Removed the original Appendix A on evaporation rate measurement method, and revised to specify that evaporation rate measurement shall follow JB/T 3356.1