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GB/T 33627-2025General requirement of aero-derivative gas turbine assembly enclosure (English PDF)

航空派生型燃气轮机机组箱装体通用技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 30, 2025

Implementation date

January 1, 2026

Scope

GB/T 33627-2025 is the English-translated version of 航空派生型燃气轮机机组箱装体通用技术要求.

GB/T 33627-2025 is the Chinese national standard covering the acoustic and fire enclosure around a packaged aero-derivative gas turbine — the composition of the box and its structural design, the marine and offshore version, the noise control and the sound insulation calculation, the fire detection and extinguishing, the ventilation and the cooling air volume that has to carry off the heat of the machine and dilute any gas that leaks inside, and the lighting, grounding and hoisting. It replaces GB/T 33627-2017, with the installation standard GB/T 33632-2025. Under the China Machinery Industry Federation. In force from 1 January 2026. Issued on 30 June 2025, it has been in force since 1 January 2026, replacing GB/T 33627-2017.

Document preview — GB/T 33627-2025

National Standard of the People's Republic of China

ICS: 27.040
Classification: K 56
Replacing: GB/T 33627-2017

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 General Requirements2
5 Unit box body composition2
6 Structural Design2
7 Noise Control3
8 Firefighting and Fire Extinguishing4
9 Ventilation systems, air conditioning, heating systems4
10 Lighting and Grounding5
11 Hoisting5
Appendix A (Informative) Calculation of sound insulation (absorption) of the unit enclosure6
Appendix B (Informative) Calculation of cooling air volume for ventilation7

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 33627-2017 "General technical requirements for aviation-derived gas turbine unit casings" and GB/T 33627- Compared with 2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Added terms and definitions (see Chapter 3);

b) The unit case structure design content has been modified (see Chapter 6, Chapter 5 of the 2017 edition);

c) Added the application requirements for marine environment unit enclosures (see 6.9 and 6.11);

d) The structures of the ventilation system, air conditioning system, and heating system have been changed (see Chapter 9, Chapters 8 and 9 of the 2017 edition);

e) The content of heating system has been changed (see 9.4, Chapter 9 of the 2017 edition).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Gas Turbines (SAC/TC259).

This document was drafted by: AECC Gas Turbine (Zhuzhou) Co., Ltd., AECC Gas Turbine Co., Ltd., and ENN Energy Power Technology (Shanghai) Co., Ltd., Offshore Oil Engineering Co., Ltd.

The main drafters of this document are: Sun Ting, Xu Hong, Tang Jincun, Zhang Hong, and Xin Shun.

This document was first published in 2017 and this is the first revision.

Aviation-derived gas turbine unit casing General technical requirements

1 Scope

This document specifies the composition, structural design, noise control, and design of the aviation-derived gas turbine box body (hereinafter referred to as the "box body").

General technical requirements for fire control, fire fighting and fire extinguishing, ventilation systems, etc.

This document applies to aircraft-derived gas turbine packaged for power generation. Used for body reference.

2 Normative references

GB 146.1

GB 146.2

GB 2894

GB 3096

GB/T 10491

GB 12348

GB/T 13673

GB/T 15135

GB/T 17888

GB 50009

GB/T 50011

GB/T 50034

GB 50058

GB 50116

GB/T 50193

3 Terms and Definitions

The terms and definitions defined in GB/T 15135 and the following apply to this document.

3.1 Boxed body enclosure

Used to protect personnel and equipment from environmental impact and/or not to affect the environment, including fire protection and noise reduction barrier.

[Source. GB/T 15135-2018, 4.29, with modifications]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3096 · GB 12348 · GB/T 15135 · GB/T 17888 · GB 50009 · GB/T 50011 · GB 50058 · GB 50116 · GB/T 50193

Editions of GB/T 33627

Edition	Title	Revision	Status
GB/T 33627-2025	General requirement of aero-derivative gas turbine assembly enclosure	current edition	Current
GB/T 33627-2017	General requirement of aero-derivative gas turbine assembly enclosure	previous edition	In force

This page sells the current edition, GB/T 33627-2025. Earlier editions are listed for reference only.

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