【正文】
nded solid, colloid, anic pounds from the raw water. ——Particular and symmetrical water distribution ensured the optimization of filter efficiency to make sure the outlet water SDI meet RO inlet water requirement. 10t/h 脫鹽水系統(tǒng) 20 ——Low flow velocity will be introduced according to the character of surface water. ——Long period of operation. ——The sand filter is specially designed for RO pretreatment system. Choice quartz sand makes a good filtration and against from layerdisorder when backwashing. Multiway valve control shall control the sand filter. And the backwash period will be controlled by time. When running time of the sand filter has reached the set time, it will be stop. Multiway valve will open the backwash waterway and take backwash procedure automatically. The sand filter will enter work state automatically after the backwash. 砂過(guò)濾器是反滲透系統(tǒng)重要的預(yù)處理裝置,本系統(tǒng)采用專門(mén)針對(duì)用戶原水水質(zhì)特點(diǎn)而設(shè)計(jì)的砂過(guò)濾器,它的作用是濾除原水中的細(xì)小顆粒、懸浮物、膠體、有機(jī)物等雜質(zhì),以及經(jīng)加藥后形成的大顆粒,從而起到保護(hù)反滲透的作用 . 特點(diǎn): ——能夠有效地去除原水中的膠體、懸浮物及有機(jī)物等。 Totally filtration area: 178。 Active carbon filter module: Ф900H1800mm material: FRP unit filtration area: 178。 Equipments collocation 設(shè)備配置 一級(jí) RO 供水泵 1st pass RO supply pum: 2 臺(tái) ( 1 用 1 備) 2sets( one for standby) 一級(jí) RO 保安過(guò)濾器 1st pass RO security: 1 套 1set 一級(jí)高壓泵 1st pass RO high pressure pump: 1 臺(tái) 1set 一級(jí) RO 1st pass RO unit: 1 套 1set 10t/h 脫鹽水系統(tǒng) 25 阻垢劑加藥裝置 Scale inhibitor dosing set: 1 套 1set NaOH 加藥裝置 NaOH dosing set: 1 套 1set 二級(jí) RO 高壓泵 2nd pass RO high pressure pump: 1 臺(tái) 1set 二級(jí) RO 2nd pass RO unit: 1 套 1set 脫鹽水箱 DI water tank: 1 臺(tái) 1set 脫鹽水供水泵 DI water boost pump: 2臺(tái)( 1用 1備) 2sets( one for standby) 清洗系統(tǒng) Cleaning system: 1 套(配 1 臺(tái)清洗水泵, 1 個(gè)清洗水箱) 1set ( 1 cleaning water pump and one cleaning tank are included) Function description 功能描述 With 99% integrated desalination rate, RO set can remove the most of the salts and anic molecule. The whole RO set shall be operated automatically. 反滲透裝置綜合脫鹽率 99%,可脫除水中絕大部分的鹽份及大分子有機(jī)物;反滲透裝置采用全自動(dòng)操作方式。本系統(tǒng)保安過(guò)濾器采用 SS304 容器、濾芯采用熔噴聚丙烯濾芯,深層過(guò)濾,具有納污量大、壽命長(zhǎng)、易更換的優(yōu)點(diǎn)。 Scaling inhibitor dosing system design parameter: 10t/h 脫鹽水系統(tǒng) 27 Dosing quantities: 5ppm Chemical concentration: 10% valid concentration Chemical name: BWA scale inhibitor Metering pump parameter: flux: pressure: power: 70w quantities: 1set Dosing tank parameter: capacity: 60L size: Ф450550mm material: PE quantities: 1set 阻垢劑加藥設(shè)計(jì)參數(shù): 加藥量: 5ppm 藥劑濃度:有效濃度 10% 藥劑名稱: BWA 阻垢劑 計(jì)量泵參數(shù): 流量: 壓力: 功率: 70w 數(shù)量: 1 臺(tái) 加藥箱參數(shù): 容積: 60L 尺寸: Ф450550mm 材質(zhì): PE 數(shù)量: 1 臺(tái) 10t/h 脫鹽水系統(tǒng) 28 ( 3) 1st pass RO security filter 一級(jí) RO 保安過(guò)濾器 Granule (equivalent diameter 5?m) can breakdown the membrane and resulting in saltleakage and injure the high pressure impeller. A security filter is just fitted before RO set to prevent the granule entering the RO system and protect RO from damage. SS304 vessel and meltblown PP filter core is used here. It has the advantages of enough capacity of dirty acceptance, long lifespan, easy replacing. The filter core should be replaced when the pressure drop exceed set value( generally ) . 為防止膜元件在運(yùn)行過(guò)程中被固體顆粒損害,在進(jìn)入反滲透之前設(shè)一臺(tái) 5?m的保安過(guò)濾器,其作用是截留和防止大于 5?m 的顆粒進(jìn)入反滲透系統(tǒng)。 中間水箱設(shè)計(jì)參數(shù): 水箱容積: 15m3 水箱尺寸: Φ27202800mm 水箱材質(zhì): PE 結(jié)構(gòu)形式:圓形平底水箱 液位 開(kāi)關(guān) :配液位 開(kāi)關(guān),帶開(kāi)關(guān)量輸出 RO DI system 除鹽系統(tǒng) —— 反滲透系統(tǒng) process description 工藝過(guò)程描述 The outlet water of activated carbon filter will be collected in the Intermediate storage tank and supply to the RO system by 1st pass RO supply pump. Scale inhibitor will be adding into the water before entering the 1st pass RO security 10t/h 脫鹽水系統(tǒng) 24 filter. The filtrated water will be pressurized by high pressure pump and feeding to 1st RO. The outlet water of 1st pass RO will be of low of pH and with a quantity of carbon dioxide. NaOH will be dosing to 1st pass RO outlet water to wipe off the carbon dioxide and acmodate the pH value. Then the acmodated water feed into 2nd pass RO by 2nd pass high pressure pump. After the 2nd pass RO treatment, the DI water will collected in the DI water tank and then boost up to the user. The online flow meter and conductivity meter is available on the outlet pipe of to ensure the satisfaction of water quality and quantity which is visible on the display of PLC. 活性炭過(guò)濾器的產(chǎn)水收集在中間水箱,由一級(jí) RO 供水泵提供給反滲透系統(tǒng),活性炭過(guò)濾器產(chǎn)水經(jīng)一級(jí) RO 供水泵加壓,加入阻垢劑,進(jìn)入一級(jí) RO 保安過(guò)濾器,經(jīng)過(guò)濾的水由一級(jí)高壓泵升壓,使其滿足一級(jí)反滲透裝置的操作壓力,然后送入一級(jí)反滲透膜裝置,一級(jí)反滲透的產(chǎn)水由于 PH 值較低,水中可能帶有部分二氧化碳?xì)怏w,因此,一級(jí) RO 產(chǎn)水需加入 NaOH 調(diào)節(jié)其 PH 值,去除水中的二氧化碳,一級(jí) RO 產(chǎn)水直接由二級(jí) RO 高壓泵加壓后,供給二級(jí) RO 系統(tǒng)處理,經(jīng)過(guò)兩級(jí)反滲透處理后的脫鹽水,收集在脫鹽水箱中,由脫鹽水供水泵供用水點(diǎn)使用。 活性炭過(guò)濾器同砂過(guò)濾器,均采用多路閥控制,活性炭過(guò)濾器反洗采用砂過(guò)濾器產(chǎn)水反洗,采用時(shí)間控制,即當(dāng)任何一臺(tái)活性炭濾器運(yùn)行時(shí)間達(dá)到設(shè)定值時(shí),則停止運(yùn)行。反洗的過(guò)濾器完成反洗過(guò)程后,自動(dòng)進(jìn)入運(yùn)行狀態(tài)。 殺菌劑加藥系統(tǒng)的作用是防止微生物生長(zhǎng)。根據(jù)招標(biāo)書(shū)要求,原水箱容積為 15m3,材質(zhì)為 PE, 為了便于控制,原水箱配液位開(kāi)關(guān)。反滲透可降低水的含鹽量和電導(dǎo)率,使出水水質(zhì)符合要求。 本系統(tǒng)根據(jù)進(jìn)水水質(zhì)及出水要求進(jìn)行專門(mén)設(shè)計(jì)。S/cm Quantities 設(shè)備套數(shù) : 1 set 套 DI water quality 脫鹽水水質(zhì) According to the GB/T66822020 Water for analytical laboratory useSpecification and test methods, we need the desalted water of class III as our water quality for our desalted water. PH , conductivity at 25℃ 5181。根據(jù)水質(zhì)特點(diǎn)和招標(biāo)文件要求,遵循工藝技術(shù)先進(jìn),運(yùn)行安全可靠,節(jié)能、節(jié)水、環(huán)保,保證系統(tǒng)能長(zhǎng)期穩(wěn)定運(yùn)行10t/h 脫鹽水系統(tǒng) 3 的原則,確定本套系統(tǒng)主工藝為:砂過(guò)濾器 +活性炭過(guò)濾器 +兩級(jí)反滲透。 Fabrication Standard Code 設(shè)計(jì)、制造標(biāo)準(zhǔn) ....................... 7 五、 Process Description 工藝方案說(shuō)明 ........................................................... 8 六、 Process equipment and pipe installation 工藝設(shè)備及管道安裝 ...... 39 八、 Accessories for system 系統(tǒng)配套 .......................................................... 49 十、 Work scope and technical service 工作范圍及技術(shù)服務(wù) ................... 55 十一、 Equipment Inspection and Performance Test 設(shè)備監(jiān)造(檢驗(yàn))和性能驗(yàn)收試驗(yàn) ...................................................