【正文】 Indian NCC 2660MW Supercritical Coalfired Power Plant Page 17 of 27 The temporary control valves for steam blowing should be in good condition, the operation switch of the temporary valves should be put at the proper position in the CCR. For convenience of warm pipe a。 In order to ensure the target plate flow stability, there should be 4 ~ 5 times the pipe diameter of straight pipe before the target plate device, and should be 2 ~ 3 times the diameter of straight pipe after the target plate device. 6）吹管臨時控制門應完好，臨時門的操作開關(guān)引至控制室鍋爐盤的適當 位置。靶板架后管子和消音器內(nèi)部應潔凈，不應有雜物。低壓旁路門后管道在安裝時即應確保其管道內(nèi)部清潔。 During the blowing install the block core of high pressure main steam valve, and connect temporary line, install target board frame, through the silencer exhaust to atmosphere. 3）高壓旁路減溫減壓閥 用臨時門代替 。 Indian NCC 2660MW Supercritical Coalfired Power Plant Page 16 of 27 In the formula: ΔP、 ΔP0 separately is the pressure difference between separator and outlet of superheater or the pressure difference between the inlet and outlet of reheater at the condition of steam blowing and BMCR condition. 吹掃的臨時設施 temporary facilities of steam blowing 1）吹管時汽機高壓主汽門內(nèi)裝假門芯，接臨時管，加臨時門。 According to the guidelines for the steam blowing, tandem purging the superheater and reheater system. according to the principle of the superheater and reheater pipes coefficient is greater than 1, the superheater and reheater pipe purging, startup separator pressure is MPa to MPa to open temporary blowing valve, startup separator pressure control temporarily 4 MPa to MPa to close the valve. The steam purging process should be controlled in the superheater, reheater, wall are not overtemperature. 吹管系數(shù) 0202 ?? GGk ? 1, Steam blowing coefficient 0202 ?? GGk ? 1, G 、 ? 、 0G 、 0? 分別是沖管時和 BMCR 工況下的蒸汽流量和蒸汽比容。 根據(jù)過熱器、再熱器及其管道各段的吹管系數(shù)大于 1 的原則，過熱器、再熱器及其管路吹掃時，啟動分離器壓力 ～ 時開臨時控制門，啟動分離器壓力 4MPa~ 關(guān)臨時控制門。 Disconnect the pipe before the accident spray desuperheater, and connect by equal diameter temporary pipe to underground pit emissions. The flushing water flow orifice and reheater desuperheater regulating valve and check valve not installed, The water flushing work of accident spray desuperheater system carry out in the duration of water flushing before boiler acid cleaning, flush the eligibility criteria for drainage transparent clear. 4） 鍋爐吹灰器主汽汽源管路的吹掃視現(xiàn)場具體布置情況預留斷口，在各母管尾部預留斷口并加裝手動門，遵循的原則是先吹母管，后吹各吹灰器汽源支管，最后吹掃疏水管路。沖洗時流量孔板及再熱器事故噴水調(diào)節(jié)門及減溫器前逆止門先不裝，水沖洗時間安排在化學專業(yè)進行爐前管道沖洗期間進行。主汽減溫水系統(tǒng)的水沖洗在酸洗之前的爐前水沖洗時一并進行，沖洗合格標準為排水透明清亮。 Indian NCC 2660MW Supercritical Coalfired Power Plant Page 14 of 27 Startup separator→ superheater→ main steam pipe→ main steam valve→ temporary pipe→ HP bypass temporary blowing valve→ cold reheat pipe→ sundries collector→ reheater→ hot reheat pipe→ main reheat valve→ temporary pipe→ target plate→ silencer→ to atmosphere 3） 流程 3：過熱器、再熱器減溫水系統(tǒng)沖洗 ： Flow3: the desuperheater of superheateramp。 Boiler superheater, reheater and main steam pipe, and cold reheat pipe, hot reheat pipe such main system adopts the pressure stepdown method for steam blowing. In the turbine hall on the cold reheat pipe with sundries collector, exhaust end with silencer, and install the target plate device to check target on the temporary pipeline after the main reheat valve. Superheater and reheater by mesh (sundries collector) sets connected to realize the whole process of purging method (step). In the first stage does the steam blowing for high pressure bypass pipe, in the entire process of blowing with desuperheat spray water pipe of backwash, after the whole blowing, use the balance steam of boiler blowing the pipe of boiler soot blower. 吹管系統(tǒng)流程 steam blowing system flow 1） 流程 1：過熱器、再熱器系統(tǒng) 吹掃： Flow1: superheater, reheater system blowing: 啟動分離器 →過熱器 →主汽管道 →高壓主汽門 →臨時管道 →臨沖門 →靶板 →冷段管道 →集粒器 →再熱器 →熱段管道 →中壓主汽門 →臨時管道 →靶板 →消音器 →排大氣 。過熱器和再熱器通過濾網(wǎng) (集粒器 )連接實現(xiàn)全流程吹掃（一步法）。 Chemicals and materials for missioning ready, and plenty of chemical water and fuel oil prepared. 作業(yè)人員配置、資質(zhì) The allocation, qualification of missioning personnel 序號No. 作業(yè)人員工種type of work 數(shù)量 quantity 資 格Qualification 職 責 Obligation 1 調(diào)試人員missioning staff 5 調(diào)試 員missioning staff 負責措施的實施與操作指導Responsible for implementing the measures and operation guide 2 安裝人員installation staff 18 帶班技術(shù)負責人及值班人員 Foreman of technical person in charge and staff on duty 維護與檢修 Maintain and repair 3 運行人員operation stuff 若干several 操作員 Operator 試驗過程中的各項操作 Each operation in test 調(diào)試所需儀器和設備 The equipments and instruments required 序號No. 名稱 name 規(guī)格 size 精度等級Precision grade 數(shù)量quantity 備注remarks 1 紅外線測溫儀 Infrared thermometer 1 5 調(diào)試程序和方法 missioning Procedure and Method 吹管方法 steam blowing method Indian NCC 2660MW Supercritical Coalfired Power Plant Page 13 of 27 鍋爐過熱器、再熱器及主蒸汽管、冷段再熱管、熱段再熱管等主要系統(tǒng)采用降壓法吹掃。 Preparations for missioning made, plete operating personnel and qualified through training examination. 準備必要的檢修工具和材料。 Commissioning field convenient munications equipment available, and maintains enough fire fighting equipment. Indian NCC 2660MW Supercritical Coalfired Power Plant Page 12 of 27 供暖、通風系統(tǒng)調(diào)試好，可以投入使用以滿足計算機設備的要求。 Emergency power supply has put into operation conditions. 土建應具備的條件 the required condition of civil engineering 試運現(xiàn)場道路暢通照明充足，事故照明可靠。 Primary air fan (A/B) startup condition, trip condition, sequence start, sequence stop be checked. DAS 系統(tǒng)靜態(tài)試驗完畢。 Induced draft fan (A/B) startup condition, trip condition, sequence start, sequence stop be checked. ? 送風機（ A/B）的啟動條件、跳閘條件、程啟、程停。 All the oil gun bustion management tested. 各輔機的順控及聯(lián)鎖、保護試驗 （即 SCS 部分） The auxiliary equipments sequence control and interlocking, protection test (SCS) ? 空預器（ A/B）的啟動條件、跳閘條件、程啟、程停。 Fuel OFT test and the action