DSA潜水曝气机使用说明书

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潜水曝气机操作规程

潜水曝气机操作规程

潜水曝气机操作规程曝气方式采用潜水曝气机,是系统的供氧设备,其操作和保养方法如下:一、设备启动前注意事项:1、曝气机在运输安装过程中严禁使用电机电缆起吊或悬挂电机。

2、曝气机安装后不能长期浸在水中不用,每周至少运行2小时,以检查其功能和适用性,若长期不用应提出水面,置于干燥处存放。

3、潜水电机必须置于水中,不允许电机露出水面运行,以防冷却不好而损坏电机。

4、严禁将电缆接头浸入水中,以防止水通过电缆渗入电机内腔而损害电机。

5、严禁无水运行,以防机械密封损坏。

6、流体中不能含有长纤维或塑料袋,以防止水室被堵塞,致使曝气机丧失性能。

7、未切断电源,禁止移动曝气机,严禁在曝气机工作时接触水源,以免无地面漏电保护时造成触电。

二、启动:1、手盘动叶轮应转动灵活,无摩擦。

点动电机确定旋转方向是否正确(从曝气机叶轮端应逆时针旋转)。

点动时间不能超过2秒,防止损坏机械密封。

2、打开吸气管路上的闸阀。

3、接通电源。

检查运行电流是否在允许范围内,如超功率应立即切断电源查找原因。

三、运转在开车及运转过程中,必须注意观察仪表读数,如果发现异常情况,应及时处理。

四、曝气机的维护保养:1、曝气机运转5000小时后,应更换油箱中机油及电机轴承润滑油。

2、视磨损情况更换机械密封及轴承,重新安装后注意更换O型密封圈。

3、运转中发生故障,不能确定原因,按《故障排除办法》不能解决时,不能擅自拆卸,应与上海川源机械工程有限公司相关部门联系。

4、及时检查进气管消音器清洁情况,并及时清除灰尘以防止阻塞,使进气量减少,曝气机会导致电机过载。

5、潜水曝气机所选用全封闭面维护轴承,无须加注润滑油、润滑脂。

水下曝气机安全操作保养规定

水下曝气机安全操作保养规定

水下曝气机安全操作保养规定前言水下曝气机作为水下氧气输送设备之一,主要用于污水处理、鱼塘养殖、深海工程等方面。

但是,由于水下环境的特殊性,水下曝气机的使用和保养需要特别注意,严谨操作和维护,才能确保其在使用期间安全稳定运行,减少安全事故的发生。

本文将分别从安全操作和保养两个方面,对水下曝气机的使用进行详细描述。

安全操作1. 密闭容器检查水下曝气机在使用前需要摆放于密闭容器中,此项检查对保证水下曝气机使用的安全性至关重要。

密闭容器检查需要检查容器的密闭性,氧气浓度和其他安全系数。

密闭容器应具备良好的密闭性,确保尽可能少的氧气进入容器。

此步骤可通过使用O2探测器或其他方法来检测氧气浓度和其他相关参数。

2. 曝气机连接曝气机连接是水下曝气机运行的关键。

在连接曝气机时,应该注意安全措施,确保水下曝气机与物理连接点之间的距离足够安全。

合理设置连接点,可以减少曝气机在连接时的损坏和安全事故的发生。

3. 连接部分检查检查连接部分是否牢固连接,连接部分是否有裂缝、变形等损坏情况。

特别是接口处的密封环是否密封良好,防止泄漏。

4. 操作人员检查运行曝气机时,所有操作人员必须注意安全。

在操作水下曝气机时,应穿着符合安全标准的个人防护装备,并遵守下列原则:•操作人员只能由经过培训,审批的人员操作。

•在操作曝气机时,应有专人负责,确保曝气机的安全运行。

•操作认真,不随意改变曝气机的运行状态,以免对曝气机造成损害。

5. 系统保护曝气机使用时,系统保护是不可或缺的。

系统保护包括:•机器自动保护。

曝气机在压力过大、过热和负载过大等情况下,设有自动保护措施,应当保证运行时的安全。

•安全阀设置。

在曝气机运行时,应该设有安全阀,以防压力过高。

•远程控制保护。

在运行曝气机过程中,如果发现问题无法解决,可通过远程操作关闭曝气机,维护人员尽快解决问题。

保养1. 定期检查定期检查曝气机的机械和电气设备,并随时进行维护保养。

因为水下曝气机长时间工作,易受损坏,定期检查可发现问题以及早发现问题,防止损失加剧。

潜水射流曝气机试验方法

潜水射流曝气机试验方法

潜水射流曝气机试验方法一、准备工作。

咱得先把场地找好呀。

这个场地得宽敞点,方便咱摆弄设备。

然后呢,把潜水射流曝气机稳稳当当地安置好。

这就好比给它找个舒服的小窝,可不能马马虎虎的。

再看看电源啥的,得确保电力供应稳定,要是电一会儿有一会儿没的,这试验可就没法好好进行啦。

还有那些测试用的小工具,像测量流量的仪器呀,测压力的小玩意儿,都得提前准备好,并且检查检查是不是能正常工作。

就像出门前检查自己的包包,手机、钥匙啥的都带齐了没。

二、运行试验。

一切准备就绪,就可以让曝气机开始工作啦。

这时候呢,咱就像个小侦探一样,仔细观察它的运行状态。

听一听它工作的时候有没有啥奇怪的声音,要是发出那种“嘎吱嘎吱”或者“嗡嗡嗡”特别不正常的声音,那肯定是有问题的。

再看看它产生的气泡,正常情况下气泡应该是均匀地冒出来的。

如果有的地方气泡特别多,有的地方又没有,那就得琢磨琢磨是不是哪里堵住了或者有啥故障。

三、性能测试。

接下来就是性能测试啦。

流量可是个很重要的指标呢。

用咱们之前准备好的流量测量仪器,看看曝气机的流量到底是多少。

这个数值就像曝气机的成绩单一样,能告诉咱们它工作得咋样。

压力也不能忽视哦。

测一测它的压力,要是压力不够或者压力波动很大,那也说明曝气机可能存在问题。

这就好比人的血压,不正常的话身体就会不舒服。

四、耐久性试验。

咱还得看看这曝气机经不经用呀。

让它持续工作一段时间,这个时间可不能太短,要像考验一个长跑运动员一样,看看它能不能长时间稳定地工作。

在这个过程中,也要时不时地检查它的运行状态、流量和压力等指标,看看有没有随着时间的推移而出现啥变化。

五、安全检查。

最后呢,安全可不能忘。

检查一下曝气机的外壳有没有漏电的情况,毕竟电这东西可危险着呢。

还有那些连接的地方,是不是牢固,可不能让它在工作的时候突然散架了。

DSA潜水曝气机使用说明书

DSA潜水曝气机使用说明书

一、主要用途和适用范围潜水曝气机用于污水处理厂的曝气池,曝气沉砂池,也可用于小型污水处理装置,工业废水处理和养鱼增氧池。

使用条件最高介质温度:40℃被输送介质PH值:5-9每二次启动间隔时间不小于10分钟二、特点、构造及工作原理1、特点(1)结构紧凑,占地面积小,安装方便。

(2)除吸气口外,其余部分潜入水中,噪音小。

(3)吸入空气多,产生气泡多而细,溶氧率高。

(4)无需提供气源,省去鼓风机,工程投资少。

(5)采用先进技术,叶轮采用无堵塞设计,运行安全可靠。

2、构造及工作原理(1)潜水离心式曝气机的曝气结构和进水结构合为一体,曝气为圆周方向均匀扩散。

(2)潜水射流式曝气机由潜水排污泵,混合室,底座等构成。

曝气为单一方向扇形扩散。

(3)潜水曝气机均有进气管和消音器。

四、使用说明1、安装前:(1)必须详细阅读说明书,避免使用不当而损坏机器。

仔细检查潜水曝气机的选型是否正确,实际使用条件是否与规定的使用条件一致。

(2)清理水池或水道,防止杂物进入曝气口。

(3)应由一名电工,用0-500V兆欧表,检查电机主电缆三芯线对地绝缘电阻不得低于5兆欧,严禁使用兆欧表检查控制电缆,避免损坏曝气机内部的电器元件,而应用万用表检查控制电缆线。

(4)检查电压一定要在铭牌上标出的额定电压±5%的范围内。

如果电源离潜水曝气机的使用距离较远时,考虑线损,电缆的截面积应加大,接头应尽可能少,且接头作密封处理,以防漏水;另外考虑维护检修的方便,建议设置机旁端子箱。

(5)潜水曝气机配有专用控制柜,使用前应仔细阅读其说明书,并检查设备接线是否正确,启动装置是否灵活,触头接触是否良好,启动设备的金属外壳是否可靠接地,检查所有接线处有无松动,并重新紧固一次。

(6)潜水曝气机上的动力电缆线、接地线和控制电缆线应与控制柜(箱)的接线头1所示。

/绿),为保证安全,必须连接牢靠,且50mm。

(8)检查叶轮旋转方向使用三相电源的潜水曝气机,在潜水曝气机初次启动或每次重新安装后都应检查转动方向,转动方向不正确,会降低效率,并损坏潜水曝气机。

曝气器使用说明书

曝气器使用说明书

目录1. HLK系列曝气器介绍 (1)2.结构特征与工作原理 (2)3. 技术特性 (3)4. 主要材料 (3)5 安装与调试 (4)6. 保养、维修 (10)7. 运输、贮存 (12)8. 开箱及检查 (12)HLK系列盘式橡胶膜片可张微孔曝气器1. HLK系列曝气器介绍HLK系列盘式可张微孔曝气器,由固定圈、薄膜、薄膜托板,止回阀和曝气器托盘构成。

该装置曝气气泡直径小,气液界面直径小,气液界面积大,气泡扩散均匀,不会产生孔眼堵塞,耐腐蚀性强;广泛应用于市政、食品、化工、制药、矿产、水产养殖水处理等领域。

1.1主要用途及适用范围HLK系列盘式可张微孔曝气器适用于各类污水处理中的充氧要求。

其各项性能指标完全符合CJ/T3015.1-1993、CJ/T3015.4-1996标准的规定。

1.2 使用环境条件、工作条件:1.2.1能在空气温度90-100℃环境中工作。

1.2.2外部气候环境温度 -30.0-45.0℃1.2.3水介质温度 4-50℃1.2.4 pH值 4-91.2.5最大浸没深度10.0m1.2.6工作制24h/day连续或间歇1.3 引用和执行标准GB5863.2、HG21561 管材、管件技术性能CJ/T3015.4-1996 CJ/T3015.1-1993 污水处理用可张中微孔曝气器污水处理用微孔曝气器GB1220 不锈钢支架GB5782/GB6170 固定用螺栓及螺母2.结构特征与工作原理2.1 总体结构特征膜式曝气盘主要由固定圈、薄膜、薄膜托板和曝气器托盘构成。

曝气器膜片采用三元乙丙橡胶(EPDM)制成,耐臭氧氧化性能极好,耐热可达150摄式度,耐低温可达-50摄式度,耐有机溶剂和无机物性能较好,抗压可达25Mpa,伸长率可达500%。

曝气器膜片打有约3700--6600个微孔,由于采用了特殊工艺一次成型,孔眼均匀,气流在整个膜片上的分布十分均匀,保证了气流与污水接触的稳定性和全面性。

曝气器使用说明书

曝气器使用说明书

曝气器使用说明书
曝气器使用说明书
一、产品概述
曝气器是一种用于水处理的设备,主要用于在水中增氧,
提供适宜的环境条件。

本产品采用先进的气体传动原理,通过喷气
和混合作用,将氧气溶解入水中,以实现水体的氧化处理。

二、产品组成
1、曝气器主体:包括进气口、排气口、气化室和排气管道
等组成部分。

2、转子:用于驱动气化室进行气体喷射和混合。

3、控制系统:包括进气阀门、排气阀门和控制面板等设备。

三、使用步骤
1、将曝气器放置在水处理设备中,确保连接管道正常。

2、打开进气阀门,控制气体进入气化室。

3、调节进气阀门,使气体流量适宜。

4、打开转子,使气体喷射和混合。

5、根据实际需求调节曝气器的工作时间和频率。

6、停止使用后,关闭进气阀门,排空气化室内余气。

四、注意事项
1、在使用前,请仔细阅读本说明书,并按要求操作。

2、请确保曝气器与水处理设备的连接牢固,防止泄漏。

3、使用过程中,注意观察曝气器的工作状态,如有异常及时停用并联系售后服务。

4、禁止将曝气器放置在高温、潮湿或易燃环境中。

5、禁止使用过程中拆解或修改曝气器结构。

附件:
1、曝气器安装示意图。

2、曝气器维护保养手册。

法律名词及注释:
1、氧化处理:指通过向水中注入氧气,促使水中有机物氧化分解的过程。

2、进气阀门:用于控制气体进入曝气器的阀门。

3、排气阀门:用于控制曝气器排气的阀门。

4、售后服务:指在产品售出后,为用户提供的维修、保养、咨询等服务。

荏原潜水泵DSU、DVSU、DSHU、DVSHU技术信息手册说明书

荏原潜水泵DSU、DVSU、DSHU、DVSHU技术信息手册说明书

Contents - Technical InformationSection PageMaterial Specifications1-196 Impeller Design Data1-197 Motor Protection1-198 Cable Entry1-199 Paint Specifications1-200 Mechanical Seal and Ball Bearing Data1-201 Mechanical Seal Sectional DWG1-202 A-15Mechanical Seal Sectional DWG1-203 A-20A-30A-35QDC Lifting Chain1-204 Submergence1-205 General Information1-206Material Comparison TableMATERIALS JIS CODE ASTM,AISI CODE Cast Iron G5501, FC20ASTM A-48 Class 30 420 Stainless G4303, SUS429J1AISI 420304 Stainless Steel G4303, SUS304AISI 304Steel G3101, SS41ASTM A283 Grade D Brass H3201, BSP3ASTM B36 No.272Impeller DataBACK P.O.MODEL TYPE DESIGN# VANES VANES50DSU6.4open radial4no50DSU6.75open radial3no50DSU61.5open radial3no50DSU62.2open radial3yes50DSU63.7open radial3yes80DSU62.2open radial4yes80DSU63.7open radial4yes100DSU65.5open radial4yes100DSU67.5open radial4yes50DVSU6.4open radial-recessed6no50DVSU6.75open radial-recessed6no50DVSU61.5open radial-recessed8no80DVSU6.75open radial-recessed6no80DVSU61.5open radial-recessed6no80DVSU62.2open radial-recessed6yes80DVSU63.7open radial-recessed6yesMotor Protection (Auto-Cut)1.Construction and principles of operationThere are two different types of Auto-Cuts, one is a single pole model that is used for single phase motors and the other is a three pole model that is used for three phase motors.Figure 1 below illustrates the construction and operation of the three phase model.Composition:3 sets of contracts, 1 Snap-Acting Disk, 3 Heaters, 3 Terminals and 1 Calibration bolt and nut.The above parts are encased in a Bakalite housing.FIGURE1The Auto-Cut is installed directly over the winding of the motor, where it not only senses over heating of the winding but also excess amperage draw by each of the three windings.Figure 2 shows the Auto-Cut in its normal operating condition (Contacts closed).When actuating temperature isreached, the Snap-Acting Disk snaps open to interrupt the circuits as shown in figure 3.When the motor temperature cools down to the safe operating temperature, the Snap-Acting Disk resets automatically to the original position as shown in figure 2, and the motor restarts.FIGURE2FIGURE 32.Provides Protection from the Following:Single PhasingLow VoltagePhase ImbalanceLocked RotorRun DryAll of the above conditions will cause the motor protector to actuate.Details of Cable EntryBased on its years of experience, EBARA now provides the most dependable cable entry construction of any submersible pump.Its features are as follows:Model DSU,DVSU,DSHU,DVSHUWater cannot leak into motor even if the cable is cut or damaged because cable leads are soldered and then isolated by rubber sealing, thus preventing any capillary action past that point.Thick moulded shoulders bolted to motor dome provide exceptional strength and form a strong compression seal.Cable resists bending forces by increased cable diameter.1231/2to 10HPShop Painting Standards1.ScopeThis specification covers the methods for painting the following EBARA PUMPS in the shop.EBARA Models:DSU, DVSU, DSHU, DVSHU2.Surface PreparationAll surfaces to be painted shall be cleaned of oil, grease or other similar materials with solvent, and then shall be brushed and air blasted to remove rust or scale.Prior to above preparation, mill scale, rust scale, chips and other foreign materials shall be removed in accordance with painting schedule.3.Coating ProcedureDetailed coating procedures are as shown in each paint schedule.Service External SurfacePainting ScheduleSurface Preparation SPPC-VISI-SP-3-63 Coats1st2ndKind of PaintZinc-chromateprimerchlorinated rubber typeMakerTAIYO PAINTCO., LTD.KANAE PAINTCO., LTD.Brand NameZT-PRIMERKR marinepaint primerFinal color:BlackService Internal SurfacePainting ScheduleSurface Preparation SPPC-VISI-SP-3-63 Coats1stKind of PaintZinc-chromateprimerMakerTAIYO PAINTCO., LTD.Brand NameZT-PRIMERMechanical Seal and Ball BearingMODEL DSUDVSUOUTPUTHP3571/210kW2.23.75.57.5OZS57576060CC1650165017001700MECHANICAL SEAL LUBRICATING OILCAPACITYBALL BEARINGTYPEA-30A-30A-35A-35BOTTOM6307ZZ6308ZZ6308ZZ6309ZZTOP6304ZZ6304ZZ6206ZZ6206ZZNAMETURBINE OILSAE 10W or 20W(TURBINE OIL#32)MODELDSHU DVSHUOUTPUTHP1/21235kW0.40.751.52.23.7OZS66125757CC18018035016501650MECHANICAL SEAL LUBRICA TING OILCAPACITYBALL BEARINGTYPEA-15A-15A-20A-30A-30BOTTOM6303ZZ6303ZZ6205ZZ6307ZZ6308ZZTOP6201ZZ6201ZZ6203ZZ6304ZZ6304ZZNAMECOMPRESSOR OILSAE 10W or 20W(ROTARY COMPRESSOR)OIL AMechanical Seal Sectional View (1/2)Since the mechanical seal is the most critical part of submersible pumps, EBARA provides the most reliable mechanicalseal available for submersible pumps.DOUBLE MECHANICAL SEALS with HARD seal face materials are provided on all EBARA “D Series”submersible pumps.The double mechanical seal in oil chamber provides long life and friction-free sealing of the motor shaft.Typical construction and materials are as follows:Type A-15DSHU,1/2to 1HP DVSHU,1/2to 1HPNO.1234567NO.FOR 1 SET1111111PART NAMEPackingFloating Ring Seal Ring Spring Seal Ring Floating Ring PackingMATERIALS(HOT WATER PUMP)DSHU, DVSHUViton Rubber Silicone Carbide Silicone Carbide 304S.SSilicone Carbide Silicone Carbide Viton RubberMechanical Seal Sectional View (2/2)NO. 12 3 4 5 67NO.FOR1 SET1111111 PART NAMEPackingFloatingSeal RingSpringSeal RingFloating RingPackingMATERIALSDSU, DVSUN.B.R.RubberCeramicCarbon Graphite304 S.S.Silicone CarbideSilicone CarbideN.B.RubberMATERIALS(HOT WATER PUMP)DSHU, DVSHUViton RubberSilicone CarbideSilicone Carbide304 S.S.Silicone CarbideSilicone CarbideViton RubberSince the mechanical seal is the most critical part of submersible pumps, EBARA provides the most reliable mechanical seal available for submersible pumps.DOUBLE MECHANICAL SEALS with HARD seal face materials are provided on all EBARA “D Series”submersible pumps.The double mechanical seal in oil chamber provides long life and friction-free sealing of the motor shaft.Typical construction and materials are as follows:Type A-20,A-30,A-35DSU,2 to 5HPDSHU,2 to 5HPDVSU,2 to 5HPDVSHU,2 to 5HPApplication of QDC’s Lifting ChainQDC MODELLS50LM65LIFTING CHAIN MODELMATERIAL :STEELLCM-6MATERIAL :STAINLESSLCMS-6STANDARD LENGTHS = 20 FEETMaximum Submergence of PumpsEBARA submersible pumps shall be capable of continuous submergence underwater without loss of watertight integrity to the following depths:MODEL DSU DVSUOPERATIONManual OperationMAXIMUM SUBMERGENCE65 Ft.Vortex Pumps — Model DVS1.PRINCIPLES OF VORTEX PUMPWhen the vortex impeller rotates in the casing, it generates primary vortex (B) and secondary vortex (A) as shown in the drawing, and then pumps up water:2.FEATURESa) As there is a large space between the impeller and the suction cover and there are no obstacles in the waterpassage, sewage can be discharged without clogging.b)Ebara’s unique hydraulic design of impeller and casing provide highly efficient performance which comparesfavorably with ordinary non-clog pump in spite of the large space.Clogging Phenomena and PreventionFrom abundant experience, EBARA placed the following design conceptions on sump and sewage pumps in order to prevent clogging.Clogging Phenomena at:1.Strainer Inlet2.Impeller Inlet3.Clearance between Impeller and Suction Cover4.Casing Tongue5.Shaft EndPreventionChoose a pump with a large strainer opening or pump without strainer, Model DSUShape inlet portion of the impeller blade as described below.The inlet edge of the impeller vanes are angled toward the impeller periphery so as to facilitate the release of objects that might other-wise clog the pump.Increase clearance – for Model DLU or Choose Model DVU.Provide large radius on tongue or cut water.Eliminate sharp points on impeller and impeller nut (use roundedimpeller nut).Understanding Unbalance (1 of 5)Three phase motors can be damaged by sustained application of unbalanced voltages.This problem can easily be more severe than application of balanced voltages above or below normal data plate ratings. Unbalanced PhasesUnbalanced voltages applied to a 3 phase motor will adversely affect the motor operating characteristics.Motors will operate successfully where the variation in the supply voltage does not exceed plus or minus 10% of the name plate rating, but the voltages of a given 3 phase circuit should be evenly balanced as closely as can be read on the usually available commercial voltmeter.A relatively small unbalance in voltage will cause a considerable increase in temperature rise.For example, a 3.5% voltage unbalance will cause approximately 25% increase in temperature rise.The full load speed is reduced slightly when the motor operates on unbalanced voltages.An unbalanced voltage will cause unequal currents to flow in the windings.If the motor is moderately or heavily loaded, currents in certain coils will exceed rating and overheat.Thermal cut-outs buried in the windings may detect this overheating and shut down the motor.If not, winding failure will result due to insulation damage.A second type of damage is caused by rotor heating.This can occur without excessive coil current on a lightly loaded motor. Damaging currents at these frequencies will flow as a result of voltage unbalance.Rotors are not designed for such currents, especially those of recent design optimized by computer techniques.Rotor overheating is most likely to cause bearing or seal failure, again perhaps, after a long period of time.Thermal cut-outs in the stator seldom will detect this problem and starter failures have been charged to mechanical failure while the cause was actually voltage unbalance.Unbalanced CurrentsQuestions relative to how much unbalance a motor can tolerate have been raised from time to time.This condition is generally due to voltage unbalance in the supply and can usually be corrected by working with the power company involved.The effect of unbalance phase currents is to increase the heating of the motor and thus reducing its efficiency.Thus it might be said that unbalanced currents as far as motor temperature rise is concerned acts like additional load on the motor.For this reason the permissible loading decreased with increasing unbalance of phase currents.Before a problem of this nature can be corrected, it is necessary to determine whether the source is with the submersible motor or with the electrical supply furnished for its operation.The following facts will assist in locating the source of the problem and will govern the steps to be taken in its correction.Unbalanced amperage is generally caused by problems in either of the following areas:A.External power supply, including the pump control box.B.Internal problem with motor windings or stator leads to drop cable connection.Understanding Unbalance (2 of 5)The following diagrams and explanation will present you with a method by which you can localize the problem as being caused by “A”or by “B”.In other words, we are trying to find out whether the trouble lies in the area from the control back through the supply or whether it is a result of malfunction beyond the control down to and including the pump motor. Assuming that the unit is connected to the supply so that the 3 phase motor is running in the correct direction of rotation, there are two other combinations of connection that will change phase connections but not change the rotation.This is accomplished by changing the position of all three drop cable leads at their termination in the control.It is important that all three leads be interchanged each time as the interchanging of only two leads will result in reversing the motor.If any two pump cable power leads are interchanged in the control it will change the rotation of the motor.If all three leads are interchanged in the control, the pump will continue to operate in the original rotation.Once the three power leads in the pump cable are connected to the terminals in the control so that the pump is operating in the correct direction of rotation, there are two other possible combinations that will also operate the pump in the correct direction.EXAMPLEAssuming that combination #1 is operating in correct rotation the 2nd and 3rd combination will also operate in the correct rotation.If combination #1 shows unbalanced amperage readings,it is sometimes possible that one of the other two combinations above will operate at a lesser degree of unbalance.T1RedBlackWhiteT2BlackWhiteRedT3WhiteRedBlackUnderstanding Unbalance (3 of 5)If the unbalanced leg follows the same wire in the drop cable from the pump, regardless of which position it is connected to on the control terminals the fault would most likely be found in the stator windings or in the stator leads to drop cable connections.If the unbalanced leg remains related to the same terminal in the control box regardless of which wire is connected to it, the fault would most likely be found in the power supply or possibly poor connection in the control.General Causes of Unbalance1.Extreme case as in Single Phasing of a 3 phasesupply.The source may be in the control.Either ablown fuse, defective or poor contact point in contactor or any interruption in wiring or terminals.2.Pulling single phase loads from the 3 phase supply in an unbalanced sequence.This can be especially true in a jobshop where electrical load is unpredictable at any given time.As we are speaking of Voltage and Amperage in terms of percentage of Unbalance, the question arises as to how to figure the % of unbalance in a 3 phase system.The formula reads as follows:EXAMPLEL1—L2 = 234V Average of the 3 readings:229L1—L3 = 230Va Maximum deviation from the average:229-223=6V L2—L3 = 223V Voltage unbalance :6/229 x 100 = 2.62%L1 = 63.3 amps Average of the 3 readings:61.1 ampsL2 = 65.6 amps Maximum deviation from the average:61.1—54.4=6.7 amps L3 = 54.4 ampsAmperage unbalance:6.7/61.1 x 100 = 10.97%x 100 = Percentage of Unbalance Maximum Deviation from average Average of the 3 readingsUnderstanding Unbalance (4 of 5)Maximum permissible % of amperage unbalance allowed at motor full load is 5%.Permissible % of unbalance increases as motor load decreases.However, unless under specific conditions, the motor should, for safety, be considered to be operating at full load.Maximum permissible % of Voltage unbalance allowed is 1%.Keep in mind that, especially with Delta wound motors, the true amperage unbalance is in the neighborhood of 6 to 10 times the Delta wound motors, the true amperage unbalance is in the neighborhood of 6 to 10 times the voltage unbalance.The true amperage unbalance is not readily determined by the amperage readings taken in the supply lines.Excess circulating currents within the stator not recorded on your amp meter, contribute to overheating of winding insulation.The “maximum”percentages mentioned above are based on motors working at full load.Slightly higher maximums may be allowed at less than full load conditions but “good practice”and full warranty must necessarily be based on full load conditions especially with squirrel cage induction motors assigned to such variable conditions as is found in the pumping of liquids, etc. Explanation of NEMA Standard MGI-1973-Section 14.34This standard presents guidelines on Voltage Unbalance.While the voltages should be evenly balanced as closely as can be read on the usually available commercial voltmeter, it is recommended that any voltage unbalance at the Motor Terminals not exceed 1%.Unbalanced Voltage can be broken into two opposing components, a positive sequence voltage and negative sequence voltage component.The positive sequence, operating the motor in its correct rotation, is opposed by the negative sequence, causing a build up of heat.Unbalance causes extra motor losses and in turn heating of the Rotor and Windings.Increased motor losses increase power costs.Line currents, as a result of unbalanced voltage, will be greatly unbalanced in the order of 6 to 10 times the voltage unbalance. This true value of the current unbalance will not be apparent on a normal reading as part of the unbalance is in the form of circulating currents in the motor and does not show up in the line.It is recommended that any amperage unbalance at the motor terminals not exceed 5%.In the phase with the highest current, the percentage increase in temperature rise will be approximately two times the square of the percentage of voltage unbalance.EXAMPLEIf voltage unbalance was 3%, percentage increase in temperature rise would be:2 x (3%)2= 2 x 9% = 18%Understanding Unbalance (5 of 5)Any significant voltage unbalance notably reduces the margins that motors have at usual service conditions, i.e.Service Factor. Voltage Unbalance can be more harmful than short time overloading or moderate low voltage conditions.NoteIf the unbalance condition cannot be corrected, it would then be advisable to reduce the motor load or oversize the motor. Effect of Voltage Variation on Induction Motor Characteristics。

太阳能微纳米曝气机 安装 使用 使用说明书

太阳能微纳米曝气机   安装 使用 使用说明书

太阳能微纳米曝气机安装使用使用说明书功能和特点太阳能微纳米曝气机是利用太阳能带动微纳米曝气机运转,可浮于水面并能随水位升降的可移式河道处理机械,主要用于没有电能地区的黑臭水体,水产养殖。

使用范围应用于水体修复,污水处理,水产养殖,船舶、减阻,黑臭水体,温泉等方面。

介质的 PH 值为:6.5~8.0,介质温度≤50℃工作原理RSUN-RWP太阳能微纳米曝气机由纳米气泡混合器、射流泵、释放系统等组成。

RWP微纳米曝气机通过纳米气泡机将气体和水混合后,通过释气器将溶解气体释放出来形成微纳米气泡,并以高速射流到水中,射流对水产生机械电离作用,在打破污染团胶体连接、断裂污染物与水的化学键和电性吸附结合的同时,射入的活性氧、氧离子、电离产生的氢离子和氢氧根离子等氧化分解污染物,实现水质的净化。

微纳米气泡在水中的溶解率超过85%,溶解氧浓度可以达到饱和浓度以上,并且微纳米气泡是以气泡的方式长时间存留在水中,可以随着溶解氧的消耗不断地向水中补充活性氧,为处理污水的微生物提供了充足的活性氧、强氧化性离子团,并保证了活性氧充足的反应过程。

经过RSUN-RWP太阳能微纳米曝气机处理后还原的洁净水,水中的溶解氧含量标准为 4ppm,水自身的净化能力远远高于自然条件下的自净能力。

技术参数管路安装要求及附属件1. 吸入管路①吸入管路的直径一般与泵的吸入口径相同或略大。

利用负压吸入气体的情况下,吸入管路的直径有时需要细一个等级,但不要过细。

②吸入管路一般需要安装底阀(如果液面落差太大,可以增加一台潜水泵来提高压力),以免管内液体倒流或因吸程太长而导致吸不上水或吸水不足。

③吸入管路需要安装滤网或Y形过滤器(60目),以免液体中的固体物对泵叶轮造成损坏或卡死。

2. 排水管路①排水管路的直径一般与曝气机的排出口径相同或略大。

②排水管路中末端安装释放器,释放器的密度布置和每个释放器的流通量有关,布置位置一般在水深2/3处。

②排水管路安装有电接点压力表,设置好压力的上下限,防止系统过压或欠压,出水压力依靠释放器来固定调节,进出水安装有阀门,便于检修。

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一、主要用途和适用范围
潜水曝气机用于污水处理厂的曝气池,曝气沉砂池,也可用于小型污水处理装
置,工业废水处理和养鱼增氧池。

使用条件
最高介质温度:40℃
被输送介质PH值:5-9
每二次启动间隔时间不小于10分钟
二、特点、构造及工作原理
1、特点
(1)结构紧凑,占地面积小,安装方便。

(2)除吸气口外,其余部分潜入水中,噪音小。

(3)吸入空气多,产生气泡多而细,溶氧率高。

(4)无需提供气源,省去鼓风机,工程投资少。

(5)采用先进技术,叶轮采用无堵塞设计,运行安全可靠。

2、构造及工作原理
(1)潜水离心式曝气机的曝气结构和进水结构合为一体,曝气为圆周方向均匀扩散。

(2)潜水射流式曝气机由潜水排污泵,混合室,底座等构成。

曝气为单一方向扇形扩散。

(3)潜水曝气机均有进气管和消音器。

四、使用说明
1、安装前:
(1)必须详细阅读说明书,避免使用不当而损坏机器。

仔细检查潜水曝气机的选型是否正确,实际使用条件是否与规定的使用条件一致。

(2)清理水池或水道,防止杂物进入曝气口。

(3)应由一名电工,用0-500V兆欧表,检查电机主电缆三芯线对地绝缘电阻不得低于5兆欧,严禁使用兆欧表检查控制电缆,避免损坏曝气机内部的电器元件,而应用万用表检查控制电缆线。

(4)检查电压一定要在铭牌上标出的额定电压±5%的范围内。

如果电源离潜水曝气机的使用距离较远时,考虑线损,电缆的截面积应加大,接头应尽可能少,且接头作密封处理,以防漏水;另外考虑维护检修的方便,建议设置机旁端子箱。

(5)潜水曝气机配有专用控制柜,使用前应仔细阅读其说明书,并检查设备接线是否正确,启动装置是否灵活,触头接触是否良好,启动设备的金属外壳是否可靠接地,检查所有接线处有无松动,并重新紧固一次。

(6)潜水曝气机上的动力电缆线、接地线和控制电缆线应与控制柜(箱)的接线头
1所示。

/绿),为保证安全,必须连接牢靠,且50mm。

(8)检查叶轮旋转方向
使用三相电源的潜水曝气机,在潜水曝气机初次启动或每次重新安装后都应检查转动方向,转动方向不正确,会降低效率,并损坏潜水曝气机。

检查方法是:潜水曝气机在最终安装前,应举高并作简单的启动,从底部向上看潜水曝气机的吸水口,叶轮按逆时针方向旋转。

如果旋转方向不正确可以交换控制柜或端子箱上三相线中的任意两条线的位置,就能改变转动方向。

如果几台潜水曝气机连到一控制柜或端子箱上,各台潜水曝气机必须单独进行检查。

(2)移动式安装:以底盘支撑,底盘根据用户需要可固定或不固定在基础上,接上电源即可工作。

3、启动和运行监视
(1)启动前必须确认叶轮的旋转方向。

(2)合闸后,不能立即启动潜水曝气机,应通过控制系统对潜水曝气机进行自检,如发现有故障出现(电控柜上出现闪光报警或警报报警),应检查并排除故障,然后方可启动,若电机不转,应迅速果断地拉闸,应检查并排除故障,以免损坏电机。

(3)潜水曝气机启动后,应注意观察电机及线路电压表和电流表,若有异常现象,应立即停机查明原因,排除故障后方能重新合闸启动。

(4)几台潜水曝气机由一台变压器供电时,不能同时启动,应由大到小逐台启动;
停止时,应由小到大逐台停止。

(5)运行中电流监视:潜水曝气机的电流不得超过铭牌上的额定电流,三相电流不平衡度,空载时不超过10%,额定负载时不超过5%。

(6)运行中电压监视:电源电压与额定电压的偏差不超过±5%,三相电压不平衡度不超过1.5%。

五、维修保养说明
潜水曝气机产品可靠,性能优良。

每台在出厂前,都认真地进行了最终检查。

永久润滑的滚珠轴承使曝气机具有最大的耐久性。

但为了保证曝气机的正常使
用和寿命,应该进行定期的检查和保养。

1、清洗
为了防止潜水曝气机在不用的内部积有杂质,可用潜水曝气机抽清洁的水
来清洁潜水曝气机。

2、潜水曝气机长期不用时,应清洗并吊起置于通风干燥处,注意防冻。

若置
于水中,每15天至少运转30min(不能干磨),以检查其功能和适应性。

联系,若紧固螺钉松动请重新紧固。

5、注油与换油
潜水曝气机在出厂前,已注入适量的机油用以润滑机械密封,该机油应每年检
查一次。

如果发现机油中有水,应将其放掉,更换机油,更换密封垫,旋紧螺
塞。

三个星期后,需重新检查,如果机油又成乳化液,则机械密封应进行检查,
必要时应更换(与本公司售后服务部联系)。

注:机油为32#机械油。

系。

六、注意事项
在搬运或悬挂机可用带钩的链条钩在卸扣或上盖的吊环上。

动产生下陷,在这种情况下,建议将曝气机悬置起来或放在一个较大的底板上。

6、当气温降至0℃以下时,若潜水曝气机仍正常运转可继续使用,否则应吊起
置于通风干燥处,并注意防冻。

七、故障排除方法
1、按照使用说明书的正确使用,在一年内因质量问题发生损坏或不能正常工作时,
我公司将按照产品保修规定进行修理或更换零部件,因安装、维护、维修不当或正常耗损所造成的人员伤害或经济损失我公司将不承担任何责任。

2、特殊定货,详见特殊说明书。

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