GB/T 41319-2022 in English
VALIDLiquefied natural gas（LNG）fueling installations
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
$582.00
《GB/T 41319-2022液化天然气（LNG）加液装置》由333（住房和城乡建设部）归口，主管部门为住房和城乡建设部。
Introduction
Analysis of the core content of the standard
| Technical elements | Old version requirements | 2022 version new regulations | Upgrade points |
|---|---|---|---|
| Design pressure | 1.6MPa as the main one | New 2.5MPa level | Adapt to high-pressure filling needs |
| Safety valve setting | Conventional discharge | Must be treated by EAG heater | Prevent direct discharge of low-temperature gas |
| Emergency shut-off response | Unspecified time limit | Valve closing time ≤10 seconds | Strengthen emergency response capabilities |
Key technological innovations
5.2.4 LNG pump delivery system requires the submersible pump pool to adopt a vacuum insulation structure with a design temperature of ≤-196℃, which reduces 20% cooling loss compared with traditional designs. The application of a demonstration project shows that this structure can control the daily evaporation rate within 0.3%.
Implementation suggestions
- Newly built gas filling stations should give priority to the use of integrated liquid filling devices, which comply with the 4.3 model compilation rules
- Regularly calibrate the safety relief device to ensure that the startup pressure error is ≤±5% (Clause 7.8)
- The low-temperature nitrogen test should be operated in accordance with Appendix A, and the cooling rate should be strictly controlled at 8-10℃/h
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