標準編號:	GB/T 16508.5-2013
中文名稱:	鍋殼鍋爐 第5部分：安全附件和儀表
英文名稱:	Shell Boilers - Part 5: Safety Appurtenances and Instruments
中標分類:	J98    鍋爐及其輔助設(shè)備
行業(yè)分類:	GB    國家標準
ICS分類:	27.060.30 27.060.30    鍋爐和熱交換器 27.060.30
發(fā)布機構(gòu):	國家質(zhì)量監(jiān)督檢驗檢疫總局 國家標準化管理委員會
發(fā)布日期:	2013-12-31
實施日期:	2014-7-1
標準狀態(tài):	superseded
被新標準替代:	GB/T 16508.5-2022 鍋殼鍋爐 第5部分：安全附件和儀表
被替代日期:	2022-10-1
作廢日期:	2022-10-01
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	15000 字
翻譯價格(元):	290.0
交付時間:	付款后 1 個工作日

Shell Boilers - Part 5：Safety Appurtenances and Instruments 鍋殼鍋爐 第5部分：安全附件和儀表 1 Scope This Part of GB/T L 6507 specifies the requirements of setting and selecting etc. for safety appurtenances and instruments of shell boilers, including safety valve, pressure measuring device, water level measuring device, temperature measuring device, blowdown and drainage device and safety protection system. This Part is applicable to the shell boilers defined within the scope of GB/T 16508.1. 2 Normative References The following documents are essential for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 1576 Water Quality for Industrial Boilers GB/T 12145 Quality Criterion of Water and Steam for Generating Unit and Steam Power Equipment GB/T 12241 Safety Valves - General Requirements GB 13271 Emission Standard of Air Pollutants for Coal-burning Boilers GB 50041 Code for Design of Boiler Plant TSG G0001 Boiler Safety Technical Supervision Administration Regulation TSG G0002 Supervision Administration Regulation on Energy Conservation Technology for Boiler TSG ZF 001 Safety Valve - Safety Technical Supervision Administration Regulation 3 Terminologies and Definitions For the purposes of this document, the following terminologies and definitions apply. 3.1 Safety appurtenances Auxiliary appurtenances and instruments for the safety operation of boilers include safety valves, pressure measuring devices, water level measuring devices, temperature measuring devices, water level alarms, blowdown devices, interlock protection devices and main valves etc. 3.2 Instruments The device used for measurement solely or together with other equipment. 3.3 Safety ignition duration The safety time for which the ignition flame of the burner is ignited, namely the maximum permissible duration of the ignition fuel control valve in open state where no ignition flame appears. 3.4 Safety flameout duration The time interval from the flame extinction to the time when the main fuel control valve starts to close where the burner flames out during the operation. 4 Basic Requirements 4.1 Safety appurtenances and metering instruments for boilers shall meet the requirements of relevant laws and regulations and respective product standards and meet those specified in TSG G0001 Boiler Safety Technical Supervision Administration Regulation and TSG G0002 Supervision Administration Regulation on Energy Conservation Technology for Boiler, ensuring the high-efficient, safe and reliable operation of boilers. 4.2 All necessary parts as required in drawings and technical documents of boilers shall be equipped with measuring devices for pressure, water level and temperature. All those devices shall be safe, reliable and accurate and be provided with proper measuring range and local and remote transmission measuring devices for pressure, water level and temperature as required in regulations. 5 Safety Valves 5.1 Basic requirements 5.1.1 Technical requirements for the manufacturing license of safety valves, product type test, nameplate and quality certificate shall be in accordance with those specified in TSG ZF 001 Safety Technical Supervision Regulation for Safety Valve . 5.1.2 Each boiler shall be installed with at least two safety valves (including boiler drum and superheater safety valve). In case of any of the following conditions, only one safety valve may be installed: a) The steam boiler whose rated evaporation is less than or equal to 0.5 t/h; b) The steam boiler with a reliable overpressure interlock protection device and rated evaporation less than 4t/h ; c) Hot water boiler with a rated thermal power less than or equal to 2.8 MW. 5.2 Selection of safety valve 5.2.1 For safety valve of steam boilers, fall-lift spring safety valve, lever safety valve or controlled safety valves (pulsed safety valve, pneumatic safety valve, hydraulic safety valve and electromagnetic safety valve etc.) shall be adopted and all these valves selected shall meet those specified in TSG ZF 001 Safety Technical Supervision Regulation for Safety Valve and the requirements of corresponding technical standards. 5.2.2 For steam boilers whose rated operating pressure is less than or equal to 0.1 MPa, dead weight safety valve or water-sealed safety equipment may be adopted. In case that hot water boiler is equipped with water-sealed safety equipment, safety valve may not be installed. The inner diameter of sealing water tube for water-sealed safety equipment shall be determined in accordance with the rated evaporation (rated thermal power) and rated operating pressure of boilers and no less than 25mm. The sealing water tubes of water-sealed safety equipment shall not be provided with valves, but anti-freezing measures. 5.3 Total discharge of safety valves 5.3.1 The total discharge of safety valves on the steam boiler shell and superheater shall be greater than rated evaporating capacity of boiler; after all those valves are opened, steam pressure in the shell shall not exceed 1.1 times of design pressure. The discharge amount of safety valve at superheater outlet shall guarantee that the superheater has sufficient cooling. The flow channel diameter of safety valve for steam boiler shall not be less than 20mm. The discharge amount shall be determined in accordance with one of the following methods:

Foreword I 1 Scope 2 Normative References 3 Terminologies and Definitions 4 Basic Requirements 5 Safety Valves 6 Pressure Measuring Device 7 Water Level Measuring Device 8 Temperature Measuring Device 9 Blowdown and Drainage Device 10 Safety Protection Devices 11 Monitoring & Metering Instrument 12 Other Requirements

鍋殼鍋爐 第5部分：安全附件和儀表 1 范圍 GB/T 16508的本部分規(guī)定了鍋殼鍋爐安全附件和儀表的設(shè)置、選用等要求，包括安全閥、壓力測量裝置、水位測量裝置、溫度測量裝置、排污和放水裝置及安全保護裝置。 本部分適用于GB/T 16508.1范圍界定的鍋殼鍋爐。 2規(guī)范性引用文件 下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是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 1576工業(yè)鍋爐水質(zhì) GB/T 12145火力發(fā)電機組及蒸汽動力設(shè)備水汽質(zhì)量 GB/T 12241 安全閥 一般要求 GB 13271鍋爐大氣污染排放標準 GB 50041鍋爐房設(shè)計規(guī)范 TSG G0001鍋爐安全技術(shù)監(jiān)察規(guī)程 TSG G0002鍋爐節(jié)能技術(shù)監(jiān)督管理規(guī)程 TSG ZF001安全閥安全技術(shù)監(jiān)察規(guī)程 3術(shù)語和定義 下列術(shù)語和定義適用于本文件。 3.1 安全附件safety appurtenances 為了保證鍋爐安全運行而設(shè)置的附屬裝置和儀表，包括安全閥、壓力測量裝置、水位測量裝置、溫度測量裝置、水位報警器、排污裝置、聯(lián)鎖保護裝置及主要閥門等。 3.2 儀表 instruments 單獨地或連同其他設(shè)備一起用來進行測量的裝置。 3.3 點火安全時間safety ignition duration 燃燒器點火火焰點燃的安全時間，即無點火火焰形成時，允許點火燃料控制閥處于開啟狀態(tài)的最長時間。 3.4 熄火安全時間safety flameout duration 燃燒器運行過程中火焰熄火時，從火焰熄滅起至主燃料控制閥開始關(guān)閉的時間間隔。 4基本要求 4.1 鍋爐所配置的安全附件、計量儀表應滿足相關(guān)法律法規(guī)和各自產(chǎn)品標準的要求，并應符合TSG G0001《鍋爐安全技術(shù)監(jiān)察規(guī)程》、TSG G0002《鍋爐節(jié)能技術(shù)監(jiān)督管理規(guī)程》的規(guī)定，保證鍋爐高效、安全、可靠運行。 4.2鍋爐圖紙和技術(shù)文件所要求的必要部位，均應配置裝設(shè)壓力、水位和溫度等測量裝置。這些測量裝置應具有適當量程并安全可靠，其測量值應有足夠的精確度，并按照法規(guī)的要求配置就地和遠傳壓力、水位和溫度測量裝置。 5安全閥 5.1 基本要求 5.1.1 安全閥制造許可、產(chǎn)品型式試驗、銘牌及質(zhì)量證明書等技術(shù)要求應符合TSG ZF001《安全閥安全技術(shù)監(jiān)察規(guī)程》的規(guī)定。 5.1.2每臺鍋爐至少裝設(shè)兩個安全閥(包括鍋筒和過熱器安全閥)。符合下列規(guī)定之一的，可以只裝設(shè)一個安全閥： a)額定蒸發(fā)量小于或等于0.5 t/h的蒸汽鍋爐； b)額定蒸發(fā)量小于4 t/h且裝設(shè)有可靠的超壓聯(lián)鎖保護裝置的蒸汽鍋爐； c)額定熱功率小于或等于2.8 MW的熱水鍋爐。 5.2安全閥選用 5.2.1蒸汽鍋爐的安全閥應采用全啟式的彈簧安全閥、杠桿式安全閥或者控制式安全閥(脈沖式、氣動式、液動式和電磁式等)，選用的安全閥應符合TSG ZF001《安全閥安全技術(shù)監(jiān)察規(guī)程》和相應技術(shù)標準的規(guī)定。 5.2.2對于額定工作壓力小于或等于0.1 MPa的蒸汽鍋爐可以采用靜重式安全閥或者水封式安全裝置，熱水鍋爐上裝設(shè)有水封安全裝置時，可以不裝設(shè)安全閥。水封式安全裝置的水封管內(nèi)徑應根據(jù)鍋爐的額定蒸發(fā)量(額定熱功率)和額定工作壓力確定，并且不小于25 mm。水封式安全裝置的水封管不得裝設(shè)閥門，且應有防凍措施。 5.3安全閥的總排放量 5.3.1蒸汽鍋爐鍋殼(鍋筒)上的安全閥和過熱器上的安全閥的總排放量，應大于鍋爐額定蒸發(fā)量，并在鍋殼(鍋筒)和過熱器上所有安全閥開啟后，鍋殼(鍋筒)內(nèi)蒸汽壓力不應超過設(shè)計時計算壓力的1.1倍。過熱器出口處安全閥的排放量應保證過熱器有足夠的冷卻。蒸汽鍋爐安全閥的流道直徑應不小于20 mm。排放量應按下列方法之一確定： a)按安全閥制造單位提供的額定排放量； b)按式(1)進行計算； E=0.235A(10.2p+1)K …………………………(1) 式中： E——安全閥的理論排放量，單位為千克每小時(kg/h)； p——安全閥進口處的蒸汽壓力(表壓)，單位為兆帕(MPa)； A——安全閥的流道面積，可用 計算，單位為平方毫米(mm2)； d——安全閥的流道直徑，單位為毫米(mm)； K——安全閥進口處蒸汽比容修正系數(shù)，按式(2)計算： K=Kp·Kg …………………………(2) 式中： Kp——壓力修正系數(shù)； Kg——過熱修正系數(shù)； K、Kp、Kg——按表1選用和計算。 表1 安全閥進口處蒸汽比容修正系數(shù) p MPa Kp Kg K=Kp·Kg p≤12 飽和 1 1 1 過熱 1 p>12 飽和 1 過熱 注：Vg——過熱蒸汽比容，m3/kg；Vb——飽和蒸汽比容，m3/kg；Tg——過熱度，℃。 a 亦可用 代替。 c)按GB/T 12241中的公式進行計算。 5.3.2熱水鍋爐安全閥的泄放能力應滿足所有安全閥開啟后鍋爐內(nèi)的壓力不超過設(shè)計時計算壓力1.1倍。安全閥流道直徑按下列方法之一確定： a)額定出口水溫小于100℃的鍋爐，按表2選取：