【導(dǎo)讀】二.編制依據(jù)StatementReference……MaterialHousing…………………BP公司合資的大型石化項(xiàng)目，位于上海市金山區(qū)漕涇上?；瘜W(xué)工業(yè)園區(qū)內(nèi)。建設(shè)公司作為CM公司代業(yè)主進(jìn)行施工管理。我們中國(guó)石化集團(tuán)寧波工程有限公。司承擔(dān)其壓縮機(jī)一區(qū)、冷區(qū)、熱區(qū)、烯烴轉(zhuǎn)換區(qū)的安裝施工任務(wù)。進(jìn)行生產(chǎn)過程的控制。90萬噸/年乙烯裂解裝置設(shè)有兩個(gè)現(xiàn)場(chǎng)控制站。用于DCS系統(tǒng)的采用基金會(huì)現(xiàn)場(chǎng)總線型，應(yīng)用于SIS系統(tǒng)的為4-20MaHART型。括上述區(qū)域內(nèi)的槽盒及儀表電纜敷設(shè)安裝。

　　

【正文】 of the indicator changing should conform to the direction of the rotameter, and the output value should conform to the indication value. 1側(cè) 側(cè)式浮筒液位變送器宜現(xiàn)場(chǎng)安裝完后用水校法校驗(yàn)。校驗(yàn)時(shí)，應(yīng)確認(rèn)零點(diǎn)液面準(zhǔn)確，輸出和輸入信號(hào)應(yīng)按介質(zhì)密度進(jìn)行換算。用水試驗(yàn)后，應(yīng)用干燥空氣吹干、密封，防止生銹及浮筒液位計(jì)在裝置開 工使用后結(jié)冰。 Water detection is suggested for sideside float level transmitter after installation on the site. In the verification, the zero point should be exact, and input and output signals should be in accordance with the medium density for conversion. After test, it should be dried by air, and then to seal to prevent the float liquid level gage from rusting and icing when the plant starts up. 1液位開關(guān)檢查時(shí)，應(yīng)用手緩慢操作平衡桿或浮球，使其上、下移動(dòng)，帶動(dòng)磁鋼使微動(dòng)開關(guān)觸點(diǎn)動(dòng)作。 When checking level switch, balancing pole or float ball should be operated slowly by hand to make it move up and down to drive alnico so that the microswitch can work. 1超聲波物位計(jì)校驗(yàn)時(shí)，通電后液晶顯示面板及狀態(tài)指示燈工作應(yīng)正常，參數(shù)設(shè)置開關(guān)應(yīng)符合工藝測(cè)量要求。 When detecting by ultrasonic level gage, liquid crystal display and status indicator light should work normally when power on, and the parametersetting switch should be in accordance with the technical measuring requirements. 調(diào)節(jié)閥一般應(yīng)進(jìn)行氣密性試驗(yàn)、 耐壓強(qiáng)度試驗(yàn)、閥芯泄漏量試驗(yàn)、閥位校驗(yàn)、靈敏度試驗(yàn)及全行程時(shí)間測(cè)定。賽科及閥門制造廠另有規(guī)定除外。 Usually the adjusting valve should adopt gas leakage test, pressuretight test, valve core leak test, valve verification, sensitivity test and wholecourse time test except that SECCO and valve manufacturer have their own regulations. 2本特利 探頭及前置放大器安裝之前應(yīng)用專用校表工具對(duì)探頭及前置放大器的動(dòng)、靜態(tài)曲線進(jìn)行檢查。 The BenTeLi probe and dynamic curve and static curve of the preamplifier should be checked by special check gage before installation. 2 在線分析儀表及可燃?xì)怏w報(bào)警儀應(yīng)按說明書進(jìn)行校驗(yàn)。 The analysis instrument and flammable gas warner should be checked according to the specification. 2 HART 智能變送器校驗(yàn)時(shí)應(yīng)對(duì)工程單位、測(cè)量范圍上下限、輸出方式、儀表位號(hào) 進(jìn)行檢查，校驗(yàn)用標(biāo)準(zhǔn)表精度為 級(jí)。 Project unit, upper limit and lower limit of measuring scope, output manner, instrument tag number should be checked when checking HART intelligent transmitter, and the precision of the checking gage should be . 2 HART 智能變送器進(jìn)行零點(diǎn)和滿量程 測(cè)試完后，再進(jìn)行精度校驗(yàn)。 Precision check should be carried out after the test of zero point and wholecourse of HART intelligent transmitter. （二）、儀表設(shè)備安裝 Installation of Instrument 現(xiàn)場(chǎng)儀表安裝時(shí)，應(yīng)符合設(shè)計(jì)要求，有關(guān)的規(guī)范、標(biāo)準(zhǔn)和 SECOO 的具體要求，沖突時(shí)按嚴(yán)的執(zhí)行。 The installation of instrument on site should be carried out according to requirements of design, related specifications, code and SECCO’s requirements, the stricter one will govern if there is any conflict. 儀表安裝時(shí)不應(yīng)受到敲擊及振動(dòng)，安裝應(yīng)牢固端正，并不受配管及其它任何外力。 The instruments cannot be knocked or vibrated when it is installed, and the installation should be upright and fixed, without receiving any outside force of tubing and others. 安裝在工藝管道上的儀表或測(cè)量元件，在管道吹洗時(shí)應(yīng)將其拆下，待吹洗完 成后再重新安裝。儀表專業(yè)應(yīng)對(duì)其流向、垂直度按隱蔽工程要求進(jìn)行檢查確認(rèn)并作記錄。 The instruments or measuring ponents installed on processing piping should be removed when the piping are flushed, to install them again after flushing. Instruments personnel should check and confirm the flowing direction and uprightness according to the requirements of hidden project and make records. 儀表盤箱嚴(yán)禁用氣焊開孔或切 割。 It is forbidden to open hole or cut by gas welding on the instrument panel box. 儀表配管不應(yīng)影響儀表拆卸、維護(hù)，閥門手動(dòng)機(jī)構(gòu)位置應(yīng)便于啟閉。Instruments tubing shouldn’t affect the removal and maintenance of the instruments, and the position of the valve manual handles should be positioned to operate conveniently. 對(duì)有特殊安裝要求的儀表設(shè)備，安裝時(shí)應(yīng)嚴(yán)格按說明書進(jìn)行。 For the instruments need to be specially installed according to the requirements, they should be installed strictly according to the specifications. 就地儀表盤，其密封性和防爆性能應(yīng)滿足要求。 The sealability and antiexplosion of local panel should be in accordance with related requirements. 測(cè)溫元件安裝時(shí)應(yīng)對(duì)配管安裝的法蘭規(guī)格及咀子長(zhǎng)度進(jìn)行核對(duì)，是否滿足設(shè)計(jì)要求。 The dimension of flange and length of nozzle installed on tubing should be checked again when installing thermometric ponents to see whether they can meet the designing requirements. 現(xiàn)場(chǎng)壓力表安裝時(shí)應(yīng)仔細(xì)核對(duì)材質(zhì)、量程是否與設(shè)計(jì)相符合，并將防粘劑涂在壓力表的螺紋上，再將壓力表擰入壓力表接頭把緊。 The materials and range should be carefully checked to see whether they conform to the design requirements when installing the pressure gage, and to lay some antiadherent on the screw of the pressure gage, then to tighten the pressure gage with the connection. 電磁流量計(jì)安裝時(shí)上游直管段應(yīng)大于 5 倍工藝管道內(nèi)徑及良好接地。 The inner diameter of the upper pipe should be 5 times bigger than the processing piping and good grounded when installing the electromagic flowmeter. 1質(zhì)量流量計(jì)應(yīng)安裝在水平管道上，矩形箱體管、 U 型箱體管應(yīng)處于垂直平 面內(nèi)。工藝介質(zhì)為氣體時(shí)，箱體管應(yīng)處于工藝管道的上方；工藝介質(zhì)為液體時(shí)，箱體管應(yīng)處于工藝管道的下方。表體應(yīng)固定在金屬支架上。 Mass flowmeter should be installed on the horizontal piping, and the ping in the rectangular and U style box should be in vertical direction. When the process medium is gas, the box piping should be above the process piping。 if the process medium is liquid, the box piping should be under the process piping. The instrument body should be fixed on the metal bracket. 1 旋渦流量計(jì)應(yīng)安 裝在無振動(dòng)的管道上，上、下游直管段的長(zhǎng)度應(yīng)符合設(shè)計(jì)要求，管道內(nèi)壁應(yīng)光滑。 Vortex flowmeter should be installed on the piping without vibration, and the length of the upper pipe and lower pipe should meet the requirements of design, and the inner wall of the piping should be smooth. 1 孔板、噴嘴安裝時(shí)、孔板 的銳邊或噴嘴的曲面?zhèn)葢?yīng)迎向被測(cè)介質(zhì)的流向。The sharpedge of orifice plate or the contour of the nozzle should be oriented to the direction of the medium flow when they are being installed. 1 差壓變送器的正壓室、負(fù)壓室應(yīng)與孔板、噴嘴、文丘里管上的正、負(fù)符號(hào)相對(duì)應(yīng)，變送器安裝應(yīng)便于操作與維修。 The positive voltage and negative voltage of the differential pressure transmitter should correspond to the positive and negative symbol on the orifice, nozzle and Venturi tube, and the installation of the transmitter should be convenient for operation and maintenance. 1 側(cè) 側(cè)式浮筒液位計(jì)應(yīng)垂直安裝，垂直度允許偏差為 2/1000。 Sideside float level gage should be installed vertically, and the allo