標準解讀

《GB/T 44916-2024 船舶和海上技術(shù)　船用超低溫閘閥　設(shè)計與試驗要求》是一項國家標準，旨在規(guī)范用于船舶及海上設(shè)施中的超低溫閘閥的設(shè)計、制造、檢驗與試驗過程。該標準適用于工作溫度范圍在-196°C至+50°C之間的液化天然氣（LNG）等超低溫介質(zhì)輸送系統(tǒng)中使用的閘閥。

標準內(nèi)容涵蓋了材料選擇、結(jié)構(gòu)設(shè)計、制造工藝、性能測試等多個方面的要求。對于材料而言，強調(diào)了必須選用能夠承受極端低溫環(huán)境而不發(fā)生脆性斷裂或顯著變形的材質(zhì)；同時，考慮到海洋環(huán)境下的腐蝕問題，也對材料的耐腐蝕性能提出了具體要求。在結(jié)構(gòu)設(shè)計上，除了常規(guī)的壓力等級、密封性能等基本考量外，還特別關(guān)注了由于溫差導(dǎo)致的熱應(yīng)力影響以及防止外部熱量向內(nèi)部傳導(dǎo)的設(shè)計措施。

此外，《GB/T 44916-2024》詳細規(guī)定了一系列針對超低溫條件下閘閥功能性和安全性的測試方法，包括但不限于氣密性試驗、強度試驗、低溫操作試驗等。這些測試旨在確保產(chǎn)品能夠在預(yù)定的工作條件下穩(wěn)定運行，并具備足夠的安全裕度以應(yīng)對突發(fā)狀況。


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文檔簡介

ICS47.020.30

CCSU53

中華人民共和國國家標準

GB/T44916—2024/ISO19037:2019

船舶和海上技術(shù)船用超低溫閘閥

設(shè)計與試驗要求

Shipsandmarinetechnology—Gatevalvesforuseinlowtemperature

applications—Designandtestingrequirements

（ISO19037：2019，IDT）

2024?11?28發(fā)布2025?03?01實施

國家市場監(jiān)督管理總局

國家標準化管理委員會發(fā)布

GB/T44916—2024/ISO19037:2019

目次

前言··························································································································Ⅲ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語和定義··············································································································2

4壓力溫度等級···········································································································3

4.1介質(zhì)類型···········································································································3

4.2工作壓力和設(shè)計溫度····························································································3

5設(shè)計·······················································································································4

5.1閘閥基本結(jié)構(gòu)·····································································································4

5.2材料基本要求·····································································································4

5.3閥體的型式與材料·······························································································4

5.4加長閥蓋的設(shè)計與材料·························································································5

5.5閘板的設(shè)計型式與材料·························································································5

5.6閥桿的型式與材料·······························································································6

5.7閥桿密封···········································································································6

5.8閥座密封圈的型式與材料······················································································6

5.9螺栓和螺母的型式與材料······················································································7

5.10驅(qū)動裝置和操作機構(gòu)的要求··················································································7

5.11表面處理··········································································································7

6焊接和熱處理···········································································································7

6.1焊接·················································································································7

6.2熱處理··············································································································8

7試驗和檢驗··············································································································8

7.1材料檢驗···········································································································8

7.2無損檢測···········································································································8

7.3尺寸檢查···········································································································9

7.4外觀目視檢查·····································································································9

7.5熱處理檢查········································································································9

7.6操作性能試驗·····································································································9

7.7壓力試驗、上密封試驗和密封性試驗·········································································9

7.8防火試驗··········································································································11

Ⅰ

GB/T44916—2024/ISO19037:2019

7.9低溫試驗··········································································································11

8標志·····················································································································12

附錄A（資料性）超低溫閘閥——示例·············································································13

參考文獻····················································································································14

Ⅱ

GB/T44916—2024/ISO19037:2019

前言

本文件按照GB/T1.1—2020《標準化工作導(dǎo)則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件等同采用國際標準ISO19037：2019《船舶和海上技術(shù)船用超低溫閘閥設(shè)計與試驗

要求》。

本文件做了下列最小限度的編輯性改動：

——糾正了國際標準中的印刷錯誤，修改了第2章中部分標準名稱；

——糾正了國際標準中的印刷錯誤，修改了表4中氮氣的密度；

——糾正了國際標準中的印刷錯誤，將5.5.1.4條和5.5.1.5條改為5.5.1.3條下一級條款；

——糾正了國際標準中的印刷錯誤，修改了7.2.3條中c）和d）條列項編號；

——糾正了國際標準中的印刷錯誤，修改了7.9.3條各列項提及的章條編號。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由全國船用機械標準化技術(shù)委員會（SAC/TC137）提出并歸口。

本文件起草單位：中國船舶集團有限公司綜合技術(shù)經(jīng)濟研究院、浙江亞達綠能科技股份有限公司、

上海海陸豐船用閥門有限公司、舟山惠生海洋工程有限公司、南通世發(fā)船舶機械有限公司、招商局金陵

船舶（江蘇）有限公司、江蘇海事職業(yè)技術(shù)學(xué)院、上海滬東造船閥門有限公司、湖北泰和石化設(shè)備有限公

司、華英閥業(yè)有限公司、凱瑞特閥業(yè)集團有限公司、方正閥門集團股份有限公司、雙恒閥門集團有限公

司、福建船政交通職業(yè)學(xué)院、青島海上綜合試驗場有限公司、中閥控股（集團）有限公司、上海盛唐閥門

科技股份有限公司、廣東中船軍民融合研究院有限公司。

本文件主要起草人：吳永峰、翁武秀、盧寧波、趙軍偉、劉軍、王延坡、王巍、李林威、蔣宇峰、金寧、

吳炅東、郭健、王宏明、李臣、章文忠、韓龍生、洪晉姚、洪晉福、李運龍、裴耀貴、郝文明、潘建達、陳聲坦、

黃文意、李翼、劉學(xué)強、鄭靚、李兆亮、李美、陳星、陳春健、唐中波、唐洋波、周東光、沈軼麟、范成裕、

姜斌。

Ⅲ

GB/T44916—2024/ISO19037:2019

船舶和海上技術(shù)船用超低溫閘閥

設(shè)計與試驗要求

1范圍

本文件規(guī)定了在超低溫環(huán)境下（-196℃~-50℃）具有超低泄漏量的船用超低溫閘閥的設(shè)計、制

造和試驗要求。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于

本文件。

ISO5208工業(yè)閥門金屬閥門壓力試驗（Industrialvalves—Pressuretestingofmetallicvalves）

注：GB/T13927—2022工業(yè)閥門壓力試驗（ISO5208：2015，MOD）

ISO5209通用工業(yè)閥門標志（Generalpurposeindustrialvalves—Marking）

注：GB/T12220—2015工業(yè)閥門標志（ISO5209：1977，MOD）

ISO28921?1工業(yè)閥門低溫用隔離閥第1部分：設(shè)計、制造及產(chǎn)品檢測（Industrialvalves—

Isolatingvalvesforlow?temperatureapplications—Part1：Design，manufacturingandproductiontesting）

API598：2016閥門檢驗與測試（ValveInspectionandTesting）

API600：2015法蘭端、對焊端及螺栓閥蓋的鋼質(zhì)閘閥（SteelGateValves，F(xiàn)langedandButt?

weldingEnds）

ASMEB1.5梯形螺紋（AcmeScrewThreads）

ASMEB1.8短牙梯形螺紋（StubAcmeScrewThreads）

ASMEB1.20.1通用管螺紋（英寸）[PipeThreads，GeneralPurpose（Inch）]

ASMEB16.5管法蘭及法蘭附件（PipeFlangesandFlangedFittings）

ASMEB16.10閥門結(jié)構(gòu)尺寸（Face?to?FaceandEnd?to?EndDimensionsofValves）

ASMEB16.11承插焊和螺紋連接的鍛造管件（For

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