昌暉儀表編制的DCS調(diào)試方案主要為本公司在施工過(guò)程中調(diào)試DCS系統(tǒng)使用,也可作為自控行業(yè)從業(yè)者在DCS系統(tǒng)調(diào)試中借鑒和參考。
1、編制說(shuō)明
為高效優(yōu)質(zhì)完成調(diào)校工作,確保工藝試車(chē)進(jìn)度,并實(shí)現(xiàn)長(zhǎng)期、安全穩(wěn)定生產(chǎn)的目標(biāo),昌暉儀表特編制本DCS系統(tǒng)調(diào)試方案。
2、編制依據(jù)
①工程合同
②施工圖及產(chǎn)品說(shuō)明書(shū)
③《自動(dòng)化儀表工程施工及驗(yàn)收規(guī)范》GB50093-2013
3、DCS系統(tǒng)結(jié)構(gòu)
DCS集散控制系統(tǒng)結(jié)構(gòu)包括:
①操作站、操作臺(tái)
②工程師站(液晶顯示器和鍵盤(pán))
③激光打印機(jī)或彩色打印機(jī)
④掃描儀(或帶掃描、復(fù)印和打印功能的一體機(jī))
⑤大容量存儲(chǔ)單元
⑥無(wú)紙記錄儀
⑦控制站及I/O單元
⑧雙冗余通訊系統(tǒng)(包括通訊總線及接口模件)
⑨聯(lián)鎖停車(chē)操作臺(tái)
⑩超級(jí)用戶(帶打印機(jī))
?PLC(帶編程單元及打印機(jī))
4、儀表系統(tǒng)調(diào)試程序
圖1為儀表系統(tǒng)調(diào)試程序方框圖。本著分層隔離、平行作業(yè)的方法,昌暉儀表將DCS系統(tǒng)調(diào)試分劃為經(jīng)下四個(gè)層次:
①層次:DCS及輔助儀表盤(pán)儀表調(diào)試
在這一層次中,通過(guò)設(shè)置斷點(diǎn),使DCS調(diào)試與輔助儀表盤(pán)儀表調(diào)試相對(duì)獨(dú)立、互不干擾,從而便于實(shí)現(xiàn)對(duì)這兩個(gè)工序的平行作業(yè),并可避免因設(shè)備狀態(tài)不正?;蚪泳€錯(cuò)誤等原因造成設(shè)備的損壞。
②第二層次:控制室內(nèi)部系統(tǒng)調(diào)試
此層次在不連接控制至現(xiàn)場(chǎng)電纜情況下,對(duì)DCS機(jī)柜、PLC柜、火警盤(pán)等的系統(tǒng)調(diào)試。對(duì)于其中的聯(lián)鎖系統(tǒng)調(diào)試能否做早、做好、做扎實(shí),對(duì)“消除隱患、掌握主動(dòng)、贏得時(shí)間”意義重大。
③第三層次:全裝置儀表二次聯(lián)校
根據(jù)現(xiàn)場(chǎng)施工及工藝試車(chē)進(jìn)度要求,逐點(diǎn)連接控制室至現(xiàn)場(chǎng)電纜,通過(guò)在現(xiàn)場(chǎng)加信號(hào)進(jìn)行回路試驗(yàn),并陸續(xù)投用。
④第四層次:應(yīng)用軟件參數(shù)的進(jìn)一步調(diào)整
此為在單體試車(chē)、聯(lián)動(dòng)試車(chē)之前、之中、之后,對(duì)某些儀表參數(shù)如復(fù)雜調(diào)節(jié)系統(tǒng)的計(jì)算系數(shù)、偏置值、延遲時(shí)間、設(shè)定值及比例、積分、微分時(shí)間等的試驗(yàn)調(diào)整,以獲得運(yùn)行工況。
5、DCS系統(tǒng)調(diào)試內(nèi)容及方法
①DCS調(diào)試
現(xiàn)場(chǎng)調(diào)試工作主要是檢查使用系統(tǒng)軟件,并對(duì)應(yīng)用軟件進(jìn)行組態(tài)確認(rèn)和功能測(cè)試。
Local testing mainly including: checking and applying system software.
Executing function approval and function test.
A、通電前的檢查
Inspection prior to making contact.
a、電纜絕緣電阻符合要求(大于5MΩ),查看電纜絕緣電阻測(cè)試記錄,必要時(shí)抽查實(shí)測(cè)。
Insulation resistance is more than 5MΩ, checking resistance test record.
If necessary sampling and testing.
b、核對(duì)所有電源線、信號(hào)線、通訊總線,應(yīng)連接無(wú)誤。
Checking all power supply lines, signal lines, and communication trunk
line right and identical.
c、控制站、操作臺(tái)、工程師站等各機(jī)框內(nèi)插卡、適配器及其接口的型號(hào)、位置正確無(wú)誤。
For control station, operation table, engineer station, specification and site
of all insert cards, adaptors and nozzle connection shall be correct.
d、各插卡預(yù)設(shè)定旋鈕位置正確。
Location for presetting button of insert cards is right.
e、供電電源單元及插卡上電源開(kāi)關(guān)均處于“OFF”位置,所有保險(xiǎn)完好無(wú)損。
Power unit and switch of insert card shall shut off, and fuses are undamaged and fine.
f、機(jī)柜內(nèi)所有連接螺釘均應(yīng)牢固、無(wú)松動(dòng)。
Tightly fixing connection screw to machine and cabinet.
g、接地系統(tǒng)接地電阻測(cè)試
Grounding resistance testing:
◆ 從控制室接地板上拆除“MG”、“CG”接地母線,用接地電阻測(cè)試儀分別測(cè)量基接地電阻,應(yīng)符合設(shè)計(jì)要求(小于10Ω)。
Dismantling MG and CG, from grounding plate of control room. Measuring grounding resistance and compliance with design(less than10Ω)
◆ 用萬(wàn)用表檢查各機(jī)柜接地匯流排是否分別與“MG”、“CG”接地板插通。
Testing using multimeter whether grounding bus-bars of cabinet well connect with MG or Cg grounding plate or not.
◆ 測(cè)量“MG”、“CG”間絕緣電阻應(yīng)符合HG/T20513-2104規(guī)范要求(大于5MΩ)。
Insulation resistance between MG and CG shall be compliance with HG/T20513-2104(more than 5MΩ)
h、UPS電源測(cè)試
UPS Testing:
◆ 檢查電源盤(pán)內(nèi)和電源開(kāi)關(guān)均處于“OFF”位置。
Make sure power panel switch and power switch shall shut off.
◆ 由電氣人員將UPS投運(yùn),測(cè)量送至儀表電源盤(pán)主電源開(kāi)關(guān)前電壓應(yīng)為220VAC±10%,50Hz±2%。
Electrican put UPS into use. Measuring voltage delivering to instrument power panel is 220VAC±10‰, 50HZ±2‰.
◆ 由電氣人員做UPS不間斷試驗(yàn)。(滿負(fù)荷投用后,重復(fù)此項(xiàng)試驗(yàn),蓄電池供電時(shí)間應(yīng)不小于30分鐘)
Electrican execute UPS testing (After overloading running do it again. Time of battery-supplying is no less than 30 minutes.)
B、DCS系統(tǒng)通電試驗(yàn)
Testing of making contact.
逐個(gè)地將各機(jī)柜、操作臺(tái)進(jìn)行以下通電試驗(yàn):
Testing every cabinet, operation-table one by one as follow:
a、將電源盤(pán)內(nèi)去機(jī)柜電源開(kāi)關(guān)置于“ON”位置用數(shù)字萬(wàn)用表檢查機(jī)柜主電源開(kāi)關(guān)前電壓,應(yīng)為220±22VAC。
The switch in power supply panel to cabinet shall be on. Measuring voltage of cabinet main power prior to closing by digital universalmeter. The range of result is 220±22VAC.
b、確認(rèn)機(jī)柜內(nèi)各卡件(除電源卡件外)已拔離卡座,然后依次將機(jī)柜主電源開(kāi)關(guān)、電源單元、電源卡件上電源開(kāi)關(guān)置于“ON”,用數(shù)字萬(wàn)用表測(cè)量各直流電壓輸出,應(yīng)符合廠商說(shuō)明書(shū)要求(5.1±0.02V、-12±0.3V、12±0.3V、24 VDC)。若超過(guò)允許偏差范圍,則進(jìn)行調(diào)整。
Make sure all card components shall be pulled from plug. And then switch on main power switch of cabinet, power unit, power components. Applying voltage meter to measure direct output voltage, the measuring results shall be compliance with manufacture instruction. (5.1±0.02V,-12±0.3V, 12±0.3V,24+3.5VDC). Adjusting if out of deviation allowance.
c、進(jìn)行雙電源手動(dòng)切換試驗(yàn)
Executing manual switch test with double power supply.
d、將各嵌套扇、信號(hào)變換器風(fēng)扇、硬盤(pán)驅(qū)動(dòng)器風(fēng)扇、柜頂、門(mén)風(fēng)扇等電源接通,檢查各風(fēng)扇,應(yīng)運(yùn)行正常。
Running all ferrule fans, signal conrertor fans , hardpand-driving fans,top cabinet, door-fans, and checking whether they are normal or not.
e、檢查電源報(bào)警電路是否起作用。
Checking the reaction of power alarm circuit.
C、DCS系統(tǒng)啟動(dòng)、裝載
System starting up and loading.
a、工程師站驅(qū)動(dòng)程序
Starting procedure of engineer station
b、操作站驅(qū)動(dòng)程序
Starting procedure of engineer station
c、控制站驅(qū)動(dòng):通電后,調(diào)出系統(tǒng)狀態(tài)畫(huà)面,確診狀態(tài)正常。
Control station starting: After making contact, selecting system status screen ans making sure it normal.
d、裝載操作
Loading operation.。
各站裝載程序詳見(jiàn)說(shuō)明書(shū)。
All loading procedures refer to manufacture instruction.
D、DCS系統(tǒng)診斷及冗余試驗(yàn)
System diagnosis and redundancy testing.
a、調(diào)出DCS系統(tǒng)診斷畫(huà)面,對(duì)各站、臺(tái)等進(jìn)行診斷檢查。
Selecting system diagnosis screen, and checking.
b、對(duì)DCS系統(tǒng)的各種冗余模件,人為地模擬故障(通過(guò)切斷電源;拔掉電源插頭、插卡等方法),觀察備用模件能否在規(guī)定的時(shí)間內(nèi)運(yùn)行,并在操作臺(tái)上觀察切換過(guò)程,觀察自動(dòng)切換過(guò)程是否正常。
Under the term of man simulation default, observing the running of spare module within specified time and converting. Inspecting automatic converting is normal or not.
◆ 電源冗余試驗(yàn)
Power supply spare testing.
◆ 通訊冗余試驗(yàn)
Communication spare testing.
◆ 雙重化控制器冗余試驗(yàn)
Spare testing of double-control controller.
◆ 操作站冗余試驗(yàn)
Operating station spare testing.
◆ 打印機(jī)熱備用試驗(yàn)
Heatintg spare testing of printer
E、DCS系統(tǒng)畫(huà)面測(cè)試
Screen Testing:
a、流程圖畫(huà)面測(cè)試
Screen testing of flow-process.
◆ 流程畫(huà)面以PID圖形式顯示,頁(yè)數(shù)及畫(huà)面內(nèi)容應(yīng)符合組態(tài)要求。
Showing flow, in from of PI.Page and content shall be compliance with function requirement.
◆ 畫(huà)面靜態(tài)顯示檢查。
Static display of screen testing:
● 檢查標(biāo)題的位置、顏色、文字說(shuō)明。
Checking title including site, color and word description.
● 圖形的形狀、大小、位置、顏色。
Shape, size, site and color of picture.
● 工藝管線的寬度、位置、顏色及進(jìn)出接頭。
Width, site, color and inlet or outlet connector of process pipeline.
● 測(cè)量變量的符號(hào)、文字、大小、位置、顏色。
Symbol, word, size, site, color of measured variables.
● 儀表信號(hào)的箭頭、寬度、位置、內(nèi)容。
Slope, width, site and content of instrument signal.
● 頁(yè)連接符號(hào)的形狀、大小、位置、顏色、進(jìn)出箭頭。
Shape, size, site, color, and inlet and outlet slope of page nexto page.
● 工程測(cè)量單位符合設(shè)計(jì)要求。
Engineering measurement unit shall comply with design.
◆ 畫(huà)面動(dòng)態(tài)顯示檢查:
Active display of screen testing.
● 測(cè)量變量的變化值應(yīng)在系統(tǒng)可識(shí)別的精度范圍內(nèi)。
Variable range shall be within the pricision recognized by system.
● 閥、電機(jī)運(yùn)行狀態(tài)的顏色變化。
Color change of running status of pump or valve.
● 報(bào)警狀態(tài)變化,且應(yīng)是正確的優(yōu)先級(jí)別。
Change of alarm status, which are right priority level.
● 從流程畫(huà)面選擇回路,進(jìn)行調(diào)整設(shè)定值、控制模式(自動(dòng)/手動(dòng))和手動(dòng)輸出的試驗(yàn)。
Selecting loop from flow screen and regulating set data, control model (Auto/ manual ) and manual output.
b、總貌畫(huà)面測(cè)試
Genera appearance screen testing:
◆ 確認(rèn)總貌畫(huà)面已按組態(tài)數(shù)據(jù)表組態(tài)。
Making sure general appearance functioned according to function data.
◆ 檢查總貌畫(huà)面每個(gè)區(qū)內(nèi)組和單元的正確組態(tài)。
Examining correct function of each unit and group of general appearance.
c、組畫(huà)面調(diào)試
Group-screen Testing:
◆ 確認(rèn)組畫(huà)面中回路,與總貌畫(huà)面中描述的組一致。
Affirming loops of group-screen corresponding with those of general appearance screen.
◆ 各測(cè)量值、設(shè)定值、模擬和數(shù)字形式的輸出均正確組態(tài)。
Measuring data, specified data, simulation and digital output are identical.
◆ 進(jìn)行改變?cè)O(shè)定值、控制模式和輸出試驗(yàn)。
Testing of changing set data, control module and output.
◆ 對(duì)數(shù)字或程序回路的組畫(huà)面,通過(guò)改變其狀態(tài),觀察塊的顏色或狀態(tài)顯示信息的變化應(yīng)符合組態(tài)要求。
For group-screen of digital or procedure loop, color of observation block or change of indication result shall meet function requirement by changing its status.
◆ 確認(rèn)對(duì)可選擇功能
Selection function:
高低限報(bào)警、偏差報(bào)警、輸出限制、調(diào)整參數(shù)、電源故障重新啟動(dòng)模式、串級(jí)或前饋回路信息、濾波器參數(shù)以及其它與回路或數(shù)字程序有關(guān)的信息的組態(tài)。
Functioning of high or low limit alarm, deviation alarm, output restict, modulating parameter, restarting pattern of power default, loop of series or pre—feedback, filter para. And other messages related to loop or number procedure.
d、回路畫(huà)面測(cè)試
Loop screen testing:
◆ 鍵入位號(hào),調(diào)出回路畫(huà)面,確認(rèn)回路類型組態(tài)正確。
In putting tag No. and finding loop screen.
Making sure function of loop type is right.
◆ 確認(rèn)測(cè)量值、設(shè)定值、輸出等正確組態(tài)。
Making sure correct functions such as measured data, set date , and output.
◆ 進(jìn)行改變?cè)O(shè)定值、控制模式和輸出的試驗(yàn)。
Testing of changing specified data, control moclule and output.
◆ 確認(rèn)可選擇的功能已按設(shè)計(jì)正確組態(tài)。
Ensure Selection function:
◆ 用工程師鍵盤(pán)在此畫(huà)面上進(jìn)行修改組態(tài)參數(shù),如在線改變調(diào)整參數(shù)、組態(tài)信息的定義、算法選擇等試驗(yàn)。
Modifying function parameter using engineer keyboard on the screen. Such as, changing regulation para, on line, concept of function, selection of caculation method.
e、歷史趨勢(shì)畫(huà)面測(cè)試
Testing of history trend screen:
◆ 確認(rèn)該畫(huà)面已按組態(tài)數(shù)據(jù)表組態(tài)。
Afirming screen functioned on basis of function data.
◆ 時(shí)間基準(zhǔn)變更試驗(yàn)(從30分鐘到12小時(shí)變更)
Altering test of time basis (from 30 minutes to 12 hours)
◆ 通過(guò)輸入信號(hào),觀察畫(huà)面能按實(shí)時(shí)信息自動(dòng)更新,對(duì)設(shè)計(jì)的變量進(jìn)行歷史趨勢(shì)系統(tǒng)儲(chǔ)存時(shí)間檢查,應(yīng)能保存20-30天。
Observe screen can renew automaticly according to actual information through inputting signal. Storage time of specified variability history trend shall be checked and preserved 20-30days.
f、報(bào)警匯總畫(huà)面測(cè)試
Testing of alarm collective screen:
◆ 檢查報(bào)警畫(huà)面應(yīng)按各報(bào)警發(fā)生時(shí)間先后順序排列,且報(bào)警畫(huà)面一旦被調(diào)用,即在畫(huà)面頂部顯示的報(bào)警。
Inspecting alarm screen according to alarming time sequence. If selected and used, latest alarm shall be showed at the top of screen.
◆ 確認(rèn)每個(gè)報(bào)警的操作組號(hào)、說(shuō)明文字、優(yōu)先級(jí)別等正確,且不同優(yōu)先級(jí)別的報(bào)警的聲光區(qū)分正確。
Making sure operation No, instruction words, priority level is correct. Sound and light classification of different priority level alarm is true.
◆ 確認(rèn)任一操作臺(tái)上消聲操作均能關(guān)閉所有的蜂鳴器。
Affirming sound—absorption plant of every operation table can close all sounders.
g、系統(tǒng)狀態(tài)畫(huà)面測(cè)試
Testing of system status screen:
◆ 調(diào)出系統(tǒng)狀態(tài)畫(huà)面,檢查連接在通訊系統(tǒng)上的各節(jié)點(diǎn)已正確組態(tài)。
Finding system status screen. Checking all joints connecting with communication system have been correctly functioned.
◆ 當(dāng)其中任一節(jié)點(diǎn)發(fā)生故障時(shí),應(yīng)能發(fā)出報(bào)警信號(hào)。
Alarming if each joint is wrong.
F、DCS系統(tǒng)操作鍵盤(pán)功能試驗(yàn)
Keyboard Function testing:
a、確認(rèn)由操作員直接操作的功能鍵操作正常,能調(diào)出各種顯示,操作每個(gè)回路(包括控制模式、設(shè)定值、設(shè)定串級(jí)、輸出信號(hào)調(diào)整等),報(bào)警確認(rèn),執(zhí)行打印機(jī)的各種功能。
Operating keyboard directty operated by operator is normal. Finding all indications and operating every loop (including control module, set data, setting series-level, output signal ). Alarming and Executing all functions.
b、確認(rèn)由鍵鎖或口令啟動(dòng)的操作員鍵盤(pán)功能操作正常,能改變測(cè)量范圍,報(bào)警值及輸出信號(hào)限制等。
Making sure keyboard function locked by key or password is normal. It can change measuring range, alarming data, and output signal restrict.
G、打印機(jī)、拷貝機(jī)用報(bào)表測(cè)試
Testing chart for printer and copier.
a、檢查打印機(jī)能將操作站規(guī)定的信息進(jìn)行打印。
Checking printer can print information specified by operation station.
b、確認(rèn)報(bào)警打印自動(dòng)發(fā)生,排列順序與報(bào)警匯總畫(huà)面一致。
Affirming alarm-printing automatically. Sequence keep compliance with alarm collection screen.
c、檢查“確認(rèn)”或“恢復(fù)”時(shí)間的打印與實(shí)際發(fā)生時(shí)間相同。
Keep printing time of verifying and resuming identical with actual time.
d、檢查如報(bào)警發(fā)生數(shù)量比打印速度快,報(bào)警打印不會(huì)丟失
Checking alarm-printing can not lose if alarming speed is faster than printing speed.
e、檢查如打印機(jī)發(fā)生故障,修復(fù)后仍能將這段時(shí)間內(nèi)的報(bào)警點(diǎn)正確打印。
If printer is wrong, alarming spot can be correctly printed during default time after repairation.
f、確認(rèn)由PLC來(lái)的聯(lián)鎖報(bào)警在規(guī)定的組(整個(gè)聯(lián)鎖被劃分為組)中具有信號(hào)顯示,并具有300ms的分辨率。
Verify interlock alarm signal PLC. In specified group has prior indication, and precision of 300ms.
g、確認(rèn)拷貝機(jī)能對(duì)各臺(tái)CRT屏幕顯示的任何畫(huà)面進(jìn)行硬拷貝,測(cè)試時(shí)每臺(tái)CRT至少各拷貝一個(gè)畫(huà)面。
Affirm all screens from every CRT indicating screen shall be hard-copied by copier. At least copying a picture to each CRT.
h、確認(rèn)報(bào)表能按組態(tài)的格式打印。
Affiring chart can print according to function format.
i、檢查小時(shí)報(bào)表、班報(bào)表、日?qǐng)?bào)表、月報(bào)表的自動(dòng)打印功能。
Checking automatic printing function of hour chart, daychart , monthly month.
j、檢查報(bào)表數(shù)據(jù)可是瞬時(shí)值、平均值、前30小時(shí)累計(jì)值(且含有小時(shí)平均值)
Checking chart data such as movent value, average value, and 30 hours acculation value (including hour coverage value
H、DC系統(tǒng)記錄儀測(cè)試
System recorder testing:
a、確認(rèn)無(wú)紙記錄儀已編程,功能符合設(shè)計(jì)要求。
Making sure recorder has been complied. Function is compliance with design.
b、給每臺(tái)無(wú)紙記錄儀(4通道)至少加一個(gè)輸入信號(hào),檢查能否經(jīng)已組態(tài)的通道記錄。
Adding an input signal at least to every recorder. Checking wherher pass functioned access recorder or not.
I、DCS通道測(cè)試
Testing of DCS Access:
經(jīng)上述對(duì)DCS組態(tài)及功能測(cè)試后,進(jìn)行99%通道測(cè)試,即從I/O輸入端加信號(hào),在操作站CRT上觀察指示值,從操作站輸出信號(hào),在I/O輸出端測(cè)量輸出值,其偏差應(yīng)符合精度要求(0.2級(jí))。
After testing function, enecuting access-testing completely. Inputing signal from I/O end, observing indication value on operating station CRT, and outputting signal from measuring value. Output deviation allowance shall be compliance with accuracy requirement. (0.2 level)
a、測(cè)試方法:根據(jù)回路圖,將輸入輸出信號(hào)按模擬量、數(shù)字量、熱電偶、熱電阻等類型分組調(diào)試。
Testing method: According to loop drawing, testing input and output signal on the base of classification such as sinullation signal, digital signal, thermocaple and RTD.
b、調(diào)試過(guò)程中,注意回路的分支、指示、記錄、報(bào)警等同時(shí)試驗(yàn)。
Testing loop branch, indication, record, alarming simulltanously.
c、每完成一個(gè)回路(或其中一部分)調(diào)試后,用色筆在回路一作出標(biāo)記,并及時(shí)填寫(xiě)調(diào)試記錄。
Making sign on the loop using color—pen and filling testing record on time after testing.
d、對(duì)順序及聯(lián)鎖回路試驗(yàn):根據(jù)邏輯圖、輸入信號(hào)檢查順序及聯(lián)鎖動(dòng)作應(yīng)符合設(shè)計(jì)要求。若不符,檢查順序表組態(tài)。
Sequence and interlock loop testing:
According to logic drawing and input signal, checking action of sequence and interlock compliant with design. If no , checking function of sequence table/schedule
②DCS系統(tǒng)其它層次調(diào)試
Other grade testing.
由于本方案主要述及DCS調(diào)試流程和DCS調(diào)試內(nèi)容。儀表系統(tǒng)調(diào)試程序方框圖中的層次調(diào)試(序2)及第二、三、四層次調(diào)試均為常規(guī)調(diào)試。故本方案僅作簡(jiǎn)要敘述,其中有關(guān)PLC聯(lián)鎖系統(tǒng)調(diào)試方案另行編制。
The scheme has mainly introduced the testing for DCS. The testing work process in the pane –chart (chart 3) is general testing so brief introduce inhere. relevant testing for PLC has other scheme.
A、輔助儀表盤(pán)儀表調(diào)試
Testing of auxiliary instrument panel:
以壓縮機(jī)盤(pán)為例:對(duì)其中的壓縮機(jī)盤(pán)主要是調(diào)速器、軸瓦溫度監(jiān)視器、機(jī)組PLC調(diào)試。至于振動(dòng)、位移監(jiān)視器調(diào)試,需待現(xiàn)場(chǎng)電纜連接后作探頭特性曲線測(cè)試后進(jìn)行。
Compressor panel testing mainly includes acculator axle temperature monitor, PLC group. After connection of local cable and testing of detector charactertistic contour , testing vibration and site-change monitor.
對(duì)火警和可燃?xì)怏w檢測(cè)系統(tǒng),在不連接現(xiàn)場(chǎng)電纜的情況下,通過(guò)接模擬負(fù)載進(jìn)行聲光報(bào)警試驗(yàn)。
For fire alarm and gas detector system, under the condition of non-connection local cable, executing sound and light alarm test by pulsing simulation loading.
B、控制室內(nèi)部系統(tǒng)調(diào)試
CR system testing:
這一層次調(diào)試檢查DCS與輔助儀表盤(pán)間的所有串行信號(hào)模擬及聯(lián)鎖報(bào)警信號(hào)等,它與層次一起,構(gòu)成了裝置調(diào)試的核心。
Checking all series simulation signal and interlock alarming signal between DCS and auxiliary instrument panel. It and first-level test is the heart of plant testing.
a、確認(rèn)接口組態(tài)正確,檢查串行信號(hào)符合設(shè)計(jì)要求。
keeping connector function correct and series-line signal compliant with design.
b、各機(jī)柜間所有模擬、數(shù)字(報(bào)警聯(lián)鎖)信號(hào)傳遞正確,動(dòng)作可靠,符合設(shè)計(jì)要求。
All simulation and digital signal conveying between machine and cabinet is right reliable, and compliance with design.
C、二次聯(lián)校
Secondary inter-testing:
二次聯(lián)校是裝置開(kāi)車(chē)前,設(shè)計(jì)、施工、建設(shè)單位對(duì)儀表調(diào)試工作的全面檢查與確認(rèn),尤其是對(duì)聯(lián)鎖系統(tǒng)要組織電氣及工藝專業(yè)人員共同確認(rèn)并簽署相關(guān)文件。
It is entire inspection and affirmation of instrument testing before starting up with shared participation of client, designer and contractor. For interlock system. It shall be approved by electrican and process technican.
a、首先要對(duì)回路電纜進(jìn)行絕緣和導(dǎo)通試驗(yàn),然后在現(xiàn)場(chǎng)變送器、發(fā)訊開(kāi)關(guān)處加模擬工藝信號(hào)。
First, executing insulation and conductivity test for loop cable. Then, pulsing simulation signal at place of local transmitter and output switch.
b、在二次聯(lián)校過(guò)程中,對(duì)檢測(cè)系統(tǒng)要進(jìn)一步核對(duì)信號(hào)的量程、工程單位、報(bào)警上下限等,對(duì)調(diào)節(jié)系統(tǒng)要檢查設(shè)定置、比例、積分、微分時(shí)間預(yù)設(shè)定、輸出正反作用及調(diào)節(jié)閥氣開(kāi)氣閉是否正確,
During the course of inter-testing, checking signal range, unit upper and lower limit of alarming concerning inspecting or testing system time, portion, differential, Checking setting value, portion , time presetting of integral and differential; positive and back action of output and air opening and closing of control valve concerning to regulation system.
對(duì)聯(lián)鎖所警系統(tǒng)應(yīng)擬聯(lián)鎖的工藝條件,檢查動(dòng)作的正確與可靠性。
For interlock alarming system, checking correction and relianilty of action cooperating with interlock process terms.
6、質(zhì)量標(biāo)準(zhǔn)
①施工圖及組態(tài)工作單。
②廠商說(shuō)明書(shū)。
③施工圖及組態(tài)工作單。
④《工業(yè)自動(dòng)化儀表工程施工及驗(yàn)收規(guī)范》GB50093-2013
⑤《自動(dòng)化儀表安裝工程質(zhì)量檢驗(yàn)評(píng)定標(biāo)準(zhǔn)》50131-2007
7、施工技術(shù)及安全措施
①通過(guò)對(duì)儀表系統(tǒng)調(diào)試程序的劃分,實(shí)現(xiàn)層次及工序間的隔離,這樣既能縮短工期,提高工作效率,又能保證人身與設(shè)備的安全。
②調(diào)試時(shí)一次完成每個(gè)回路及聯(lián)鎖分支的復(fù)蓋,避免遺漏和人力物力的浪費(fèi),確保調(diào)試進(jìn)度和質(zhì)量。
③二次聯(lián)校通過(guò)設(shè)置斷點(diǎn),各回路逐點(diǎn)開(kāi)通,調(diào)試合格后現(xiàn)場(chǎng)掛牌,避免造成現(xiàn)場(chǎng)短路而燒毀保險(xiǎn)或損壞設(shè)備。
④在DCS調(diào)試過(guò)程中注意:
A、DCS調(diào)試及運(yùn)行時(shí)應(yīng)連續(xù)供電。
B、裝載時(shí)不能切斷電源,否則將損壞U盤(pán),也不要觸摸鍵盤(pán)上的任何鍵.
C、拔出或插入卡件時(shí),需佩帶防靜電接地帶,卡件檢查也應(yīng)放在經(jīng)1M歐接地電阻接地的導(dǎo)電板上進(jìn)行,卡件應(yīng)裝于防靜電袋中存放。
D、更換組件或卡件時(shí),嚴(yán)格按照廠商說(shuō)明書(shū)操作程序進(jìn)行。
E、組態(tài)的任何增、刪及修改,需辦理操作票,并作詳細(xì)記錄。
F、為確保系統(tǒng)正常工作,任何與DCS無(wú)關(guān)的存儲(chǔ)設(shè)備(如u盤(pán)等)不能插入控制室控制電腦。
⑤建立門(mén)衛(wèi)安全保衛(wèi)制度,專人值班,憑證出入。
⑥控制室內(nèi)嚴(yán)禁吸煙。
⑦配備消防器材,預(yù)防火災(zāi)發(fā)生。
8、施工網(wǎng)絡(luò)計(jì)劃
根據(jù)具體情況編排。
9、DCS系統(tǒng)調(diào)試勞動(dòng)力安排
10、DCS系統(tǒng)調(diào)試用主要標(biāo)準(zhǔn)儀器
①高精度過(guò)程校驗(yàn)儀:昌暉過(guò)程校驗(yàn)儀YR100
②數(shù)字萬(wàn)用表:FLUKE福祿克F87V/C
③精密電阻箱