標(biāo)準(zhǔn)編號(hào):	GB/T 45161-2024
中文名稱:	液氫容器用安全閥技術(shù)規(guī)范
英文名稱:	Technical specification of safety valves for liquid hydrogen vessels
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
發(fā)布機(jī)構(gòu):	國家市場監(jiān)督管理總局 國家標(biāo)準(zhǔn)化管理委員會(huì)
發(fā)布日期:	2024-12-31
實(shí)施日期:	2025-7-1
標(biāo)準(zhǔn)狀態(tài):	valid
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	25000 字
翻譯價(jià)格(元):	1750.0
交付時(shí)間:	付款后 1 個(gè)工作日

GB/T 45161-2024 Technical specification of safety valves for liquid hydrogen vessels 1 Scope This document specifies technical requirements, test methods, inspection rules, marking, painting, packaging, transportation and storage of safety valves for liquid hydrogen vessels. This document is applicable to safety valves for liquid hydrogen vessels with nominal size not greater than DN200, setting pressure not less than 0.1MPa, temperature not less than -254℃, and single phase liquid hydrogen evaporating gas as the medium (including spring direct load safety valves and pilot operated safety valves). 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 229 Metallic materials - Charpy pendulum impact test method GB/T 12224 General requirements for industrial steel valves GB/T 12241 Safety valves - General requirements GB/T 12242 Pressure relief devices - Performance test code GB/T 12243 Spring loaded safety valves GB/T 13305 Method for determining content of the α-phase in stainless steels GB/T 22652 Overlaying-welding procedure qualification for valves sealing face GB/T 24499 Technology glossary for gaseous hydrogen, hydrogen energy and hydrogen energy system GB/T 24921.1 Sizing, selection and installation of pressure relieving valves for petrochemical industries - Part 1: Sizing and selection GB/T 26481 Industrial valves test for fugitive emissions GB/T 26640 Specification for minimal thickness of the shell of valves GB/T 28778 Pilot operated safety valves GB/T 29026 Spring loaded safety valve for cryogenic service GB/T 40011 Pilot safety valve for cryogenic fluid service GB/T 40060 Technical requirements for storage and transportation of liquid hydrogen GB/T 40079 Classification system and qualification procedures for fugitive emission type testing of valves HG 20202 Code for construction and acceptance of degreasing project JB/T 6440 Methods of radiographic examination for steel castings valves JB/T 6440-2008 Methods of radiographic examination for steel castings valves JB/T 6903 Methods for ultrasonic examination of steel gorgings for valves JB/T 6903-2008 Methods for ultrasonic examination of steel gorgings for valves JB/T 7248 Technical specification for low temperature service steel casting for valves JB/T 7927-2014 Valve cast steel visual quality requirements JB/T 7928 Industrial valves - Delivery specification NB/T 47013.2 Nondestructive testing of pressure equipments - Part 2: Radiographic testing NB/T 47013.2-2015 Non-destructive testing of pressure equipments - Part 2: Radiographic testing NB/T 47013.5 Nondestructive testing of pressure equipments - Part 5: Penetrant testing NB/T 47013.5-2015 Nondestructive testing of pressure equipments - Part 5: Penetrant testing NB/T 47014 Welding procedure qualification for pressure equipment 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 12241, GB/T 12242, GB/T 12243, GB/T 24499, GB/T 28778 and the following apply. 3.1 hydrostatic strength test test of rupture resistance of pressure shell at normal temperature, specified liquid pressure and specified time 3.2 design pressure allowable maximum pressure of the pressure-bearing parts of the safety valve for liquid hydrogen vessels at normal temperature specified in the design 3.3 cryogenic treatment treatment process of immerse the parts in a vessel that is not higher than the temperature of liquid nitrogen for cooling until their temperature is stable, then maintain such temperature for 2h to 6h, and then take them out to return to room temperature naturally 3.4 valve category A safety valve that may be discharged during the normal operation of the liquid hydrogen vessel without automatic control valve or discharge valve 3.5 valve category B safety valve that does not discharge during the normal operation of the liquid hydrogen vessel with automatic control valve or discharge valve 4 Technical requirements 4.1 General requirements 4.1.1 Safety valves for liquid hydrogen vessels (hereinafter referred to as safety valves) shall meet the requirements of GB/T 12241, GB/T12243, GB/T 28778, GB/T 29026 and GB/T40011, in addition to the requirements of this document. 4.1.2 The determination of design pressure of safety valves shall meet the requirements of GB/T 12224. When the pressure-temperature rating of some materials with elastic sealing structure or internal parts is lower than the pressure-temperature rating of the body material, the design pressure shall be determined with the lower value. 4.1.3 The end connection of safety valves shall meet the requirements of GB/T 12241. If the purchaser has special requirements, the safety valves can be designed and manufactured according to the purchase technical agreement under the condition of ensuring the performance and safety of the safety valves. 4.1.4 Before assembly, all parts shall be cleaned, degreased and dried according to the methods specified in HG 20202, and the results shall meet the requirements of HG 20202. 4.2 Design requirements 4.2.1 Temperature adaptability Within the predetermined pressure range, the safety valve shall be able to work normally between the required minimum temperature and 65°C. 4.2.2 Setting pressure The setting pressure of safety valve shall be less than or equal to the difference between its design pressure and the excess pressure (setting pressure ≤ design pressure - excess pressure), and should not exceed the specified values of Annexes B and C of GB/T 24920-2010. 4.2.3 Safety valve shell 4.2.3.1 The safety valve shall be designed to discharge liquid to avoid the accumulation of liquid in the valve. Except as otherwise specified in the technical purchase agreement. 4.2.3.2 The safety valve shell shall have sufficient strength to ensure that no harmful deformation occurs under strength test and working conditions. It can withstand the stress caused by the change of medium pressure and temperature for a long time, the additional stress generated by the connecting pipe, and the total load of combined stress generated under the operating conditions. 4.2.3.3 When the safety valve is discharged, avoid the accumulation of solid matter in the valve body or at the outlet and cause failure due to the decrease of temperature. 4.2.3.4 Shell thickness shall meet the requirements of GB/T 26640.

Contents Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 4.1 General requirements 4.2 Design requirements 4.3 Performance requirements 4.4 Materials 4.5 Non-destructive inspection 5 Test methods 5.1 Safety instruction 5.2 Marking Inspection 5.3 Dimension inspection of shell 5.4 Chemical composition of material 5.5 Mechanical properties of material 5.6 Normal temperature performance test 5.7 Low temperature performance test of liquid hydrogen 5.8 Anti-static test 5.9 Cleanliness inspection 5.10 Vibration and impact tests 5.11 Non-destructive inspection 6 Inspection rules 6.1 Inspection items 6.2 Delivery inspection 6.3 Type testing 7 Marking 7.1 General 7.2 Body marking 7.3 Nameplate marking 8 Painting, packaging, transportation and storage Annex A (Informative) Working conditions for calculation of runner size and rated displacement Annex B (Informative) Designations of metal materials for main parts of valves Bibliography

液氫容器用安全閥技術(shù)規(guī)范 1 范圍 本文件規(guī)定了液氫容器用安全閥的技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、標(biāo)志、涂漆、包裝、運(yùn)輸和儲(chǔ)存。 本文件適用于公稱尺寸不大于DN200, 整定壓力不低于0. 1 MPa，溫度不低于-254℃，介質(zhì)為單相液氫蒸發(fā)氣的液氫容器用安全閥(包括彈簧直接載荷式安全閥和先導(dǎo)式安全閥)。 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(duì)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。 GB/T 229 金屬材料 夏比擺錘沖擊試驗(yàn)方法 GB/T 12224 鋼制閥門 一般要求 GB/T 12241 安全閥 一般要求 GB/T 12242 壓力釋放裝置 性能試驗(yàn)方法 GB/T 12243 彈簧直接載荷式安全閥 GB/T13305 不銹鋼中α-相含量測定法 GB/T 22652 閥門密封面堆焊工藝評(píng)定 GB/T 24499 氫氣、氫能與氫能系統(tǒng)術(shù)語 GB/T 24921.1 石化工業(yè)用壓力釋放閥的尺寸確定、選型和安裝 第1部分：尺寸的確定和選型 GB/T 26481 工業(yè)閥門的逸散性試驗(yàn) GB/T 26640 閥門殼體最小壁厚尺寸要求規(guī)范 GB/T 28778 先導(dǎo)式安全閥 GB/T 29026 低溫介質(zhì)用彈簧直接載荷式安全閥 GB/T 40011 低溫先導(dǎo)式安全閥 GB/T 40060 液氫貯存和運(yùn)輸技術(shù)要求 GB/T 40079 閥門逸散性試驗(yàn)分類和鑒定程序 HG 20202 脫脂工程施工及驗(yàn)收規(guī)范 JB/T 6440 閥門鑄鋼件射線檢測 JB/T 6440-2008 閥門鑄鋼件射線檢測 JB/T 6903 閥門鍛鋼件超聲檢測 JB/T 6903-2008 閥門鍛鋼件超聲檢測 JB/T 7248 閥門用低溫鋼鑄件技術(shù)規(guī)范 JB/T 7927-2014 閥門鑄鋼件外觀質(zhì)量要求 JB/T 7928 工業(yè)閥門 供貨要求 NB/T 47013.2 承壓設(shè)備無損檢測 第2部分：射線檢測 NB/T 47013.2-2015 承壓設(shè)備無損檢測 第2部分：射線檢測 NB/T 47013.5 承壓設(shè)備無損檢測 第5部分：滲透檢測 NB/T 47013.5-2015 承壓設(shè)備無損檢測 第5部分：滲透檢測 NB/T 47014 承壓設(shè)備焊接工藝評(píng)定 3 術(shù)語和定義 GB/T 12241、GB/T 12242、GB/T 12243、GB/T 24499、GB/T 28778界定的以及下列術(shù)語和定義適用于本文件。 3.1 液壓靜強(qiáng)度試驗(yàn) hydrostatic strength test 在常溫、規(guī)定的液體壓力和規(guī)定的時(shí)間下，承壓殼體抗破裂能力的試驗(yàn)。 3.2 設(shè)計(jì)壓力 design pressure 設(shè)計(jì)時(shí)規(guī)定的常溫下液氫容器用安全閥承壓部件所允許承受的最大壓力。 3.3 深冷處理 cryogenic treatment 將零件浸沒在不高于液氮溫度的容器中進(jìn)行冷卻，當(dāng)零件溫度穩(wěn)定后，保溫2h～6h, 然后取出并自然恢復(fù)至室溫的處理過程。 3.4 A類閥門 valve category A 液氫容器系統(tǒng)中無自動(dòng)控制閥或排放閥，在液氫容器正常運(yùn)行期間可能泄放的安全閥。 3.5 B類閥門 valve category B 液氫容器系統(tǒng)中帶有自動(dòng)控制閥或排放閥，在液氫容器正常運(yùn)行期間不泄放的安全閥。 4 技術(shù)要求 4.1 一般要求 4.1.1 液氫容器用安全閥(以下簡稱安全閥) 除應(yīng)符合本文件的規(guī)定外，還應(yīng)符合GB/T 12241、GB/T12243、GB/T 28778、GB/T 29026、GB/T40011的要求。 4.1.2 安全閥設(shè)計(jì)壓力的確定應(yīng)符合GB/T 12224的規(guī)定，當(dāng)某些采用彈性密封結(jié)構(gòu)或內(nèi)部零件材料的壓力-溫度額定值低于閥體材料壓力-溫度額定值時(shí)，應(yīng)以低值確定設(shè)計(jì)壓力。 4.1.3 安全閥的端部連接應(yīng)符合GB/T 12241的規(guī)定。如需方有特殊要求，可在保證安全閥性能和安全的情況下按采購技術(shù)協(xié)議進(jìn)行設(shè)計(jì)制造。 4.1.4 裝配前所有零件應(yīng)進(jìn)行清洗，并按HG 20202 的規(guī)定的方法進(jìn)行脫脂、烘干處理，結(jié)果符合HG 20202的檢驗(yàn)規(guī)定。 4.2 設(shè)計(jì)要求 4.2.1 溫度適應(yīng)性 在預(yù)定的壓力范圍內(nèi)，在要求的最低溫度至65℃之間安全閥應(yīng)能正常工作。 4.2.2 整定壓力 安全閥整定壓力應(yīng)小于或等于其設(shè)計(jì)壓力與超過壓力的差(整定壓力≤設(shè)計(jì)壓力-超過壓力) , 不宜超過GB/T 24920-2010附錄B和附錄C的規(guī)定值。 4.2.3 安全閥殼體 4.2.3.1 安全閥應(yīng)做排液設(shè)計(jì)以避免液體在閥內(nèi)的積聚。采購技術(shù)協(xié)議中另有規(guī)定的除外。 4.2.3.2 安全閥殼體應(yīng)具有足夠的強(qiáng)度，保證在強(qiáng)度試驗(yàn)及工作條件下不發(fā)生任何有害變形。能長期承受由于介質(zhì)壓力和溫度變化產(chǎn)生的應(yīng)力，連接管道產(chǎn)生的附加應(yīng)力，以及操作條件下產(chǎn)生的綜合應(yīng)力的總載荷。 4.2.3.3 當(dāng)安全閥排放時(shí)，避免在閥體內(nèi)或者出口處因溫度降低出現(xiàn)固體物質(zhì)積聚而導(dǎo)致故障。 4.2.3.4 殼體厚度應(yīng)符合GB/T 26640的規(guī)定。 4.2.4 導(dǎo)向裝置 4.2.4.1 導(dǎo)向裝置的設(shè)計(jì)應(yīng)保證安全閥正常工作，避免出現(xiàn)大氣中水分的沉積、凍結(jié)導(dǎo)致故障。 4.2.4.2 導(dǎo)向裝置的結(jié)構(gòu)應(yīng)足夠堅(jiān)固，保證正常搬運(yùn)和操作時(shí)的有效性。 4.2.5 閥瓣與閥座密封 4.2.5.1 閥瓣和閥座密封面應(yīng)設(shè)計(jì)成金屬對(duì)金屬或金屬對(duì)非金屬。采用金屬對(duì)非金屬密封時(shí)，非金屬密封側(cè)宜設(shè)計(jì)次級(jí)的金屬密封結(jié)構(gòu)；非金屬密封(如純PTFE等材料) 應(yīng)有足夠的支撐，防止材料冷流變形導(dǎo)致的密封失效。 4.2.5.2 非金屬密封與其閥瓣或閥座連接件應(yīng)機(jī)械固定并鎖緊。 4.2.5.3 在閥瓣和閥座密封面上堆焊硬質(zhì)合金時(shí)，應(yīng)符合GB/T22652 的規(guī)定。 4.2.6 防靜電 安全閥應(yīng)設(shè)計(jì)防靜電結(jié)構(gòu)，保證殼體、啟閉件和閥桿等各部件間具有導(dǎo)電性，且放電路徑最大電阻不超過5Ω。 4.2.7 振動(dòng)和沖擊 用于移動(dòng)容器的安全閥，必要時(shí)應(yīng)根據(jù)安裝容器的要求進(jìn)行耐振動(dòng)和抗沖擊(跌落) 設(shè)計(jì)，振動(dòng)和沖擊(跌落) 試驗(yàn)后性能應(yīng)不發(fā)生變化。