GB15605-2024

Specifications for pressure venting of dust explosion

粉尘爆炸泄压规范

GB 15605-2024 は現行の中国強制国家規格です：Specifications for pressure venting of dust explosion。業界：機械。テーマ：製品安全。施行日：2026年1月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to explosion pressure venting for process equipment and facilities in locations with combustible dust explosion hazards. It covers various dust-containing equipment, including containers, silos, pipelines, dust collectors, and bucket elevators. This standard is mandatory for all manufacturers and operators of dust-handling equipment in China. It explicitly does not apply to underground coal mines, fireworks, explosives, strong oxidizers, or areas with toxic or corrosive dusts.

技術要求

The standard specifies comprehensive technical requirements for the design, selection, and installation of explosion venting devices. It mandates that venting measures must be selected based on the process, equipment, and dust explosion characteristics. The maximum reduced explosion pressure must not exceed the design strength of the protected equipment. For equipment located inside buildings, the standard requires the use of flameless venting devices or venting ducts (limited to 3 meters in length) to direct pressure and flames to the exterior. It also prohibits the use of standard valves, manholes, or observation windows as venting devices. The standard details specific design requirements for various equipment types, including bag filters, cyclone dust collectors, pipelines, and bucket elevators. It introduces parameters such as venting efficiency, static activation pressure, and nominal protection volume for flameless devices. Manufacturers must provide comprehensive technical documentation and permanent identification marks on all venting devices.

試験方法

The standard describes verification methods focusing on document review and on-site inspection rather than specific physical testing. Compliance is verified by reviewing risk assessment files, venting design documents, and device selection records. Inspectors must verify the technical documentation, performance certification, and product labeling of the venting devices. It also references GB/T 16426 for determining dust explosion characteristic parameters like maximum explosion pressure and the explosion index.

よくある質問

What products and facilities are regulated under GB 15605-2024?

GB 15605-2024 applies to process equipment and facilities in locations with combustible dust explosion hazards. It does not apply to underground coal mines, fireworks, explosives, strong oxidizers, or toxic/corrosive dusts.

Are there any significant updates from the previous GB/T 15605-2008 version?

The 2024 version transitions from a guideline to a mandatory specification. It introduces new terms like flameless explosion venting, adds requirements for device selection, installation, and maintenance, and removes building venting calculations. It also updates venting area calculation methods for containers and pipelines.

How does GB 15605-2024 differ from international standards like ISO or NFPA?

GB 15605-2024 aligns conceptually with international standards like EN 14491 and NFPA 68, focusing on deflagration venting. However, manufacturers must strictly adhere to the specific calculation formulas and parameters defined in this Chinese standard to achieve local compliance.

The summary above provides a high-level overview of GB 15605-2024. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15605-2024 today to access all detailed parameters, calculation formulas, tables, and testing procedures.

適用のヒント

種別: 安全
CCS: C67
ICS: 13.230
所管部門: Ministry of Emergency Management
技術委員会: National Technical Committee on Work Safety of Standardization Administration of China