标准编号:	GB/T 24674-2021
中文名称:	污水污物潜水电泵
英文名称:	Waste submersible motor-pumps
中标分类:	B91    农机具
行业分类:	GB    国家标准
ICS分类:	65.060.35 65.060.35    灌溉和排放设备 65.060.35
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2021-04-30
实施日期:	2021-11-1
标准状态:	valid
替代旧标准:	GB/T 24674-2009 污水污物潜水电泵
翻译语言:	英文
文件格式:	PDF
中文字符数:	25000 字
翻译价格(元):	1300.0
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization — Part 1: Rules for the structure and drafting of standardizing documents. This standard replaces GB/T 24674-2009 Waste submersible motor-pumps. In addition to a number of structural adjustments and editorial changes, the following main technical changes have been made with respect to GB/T 24674-2009: a) The normative reference is modified (see Clause 2 of this standard; Clause 2 of Edition 2009); b) The efficiency and power of the motor-pump are modified (see 4.3.1; 3.3.1 of Edition 2009); c) The efficiency value of the variant products of axial-flow or mixed-flow motor-pump from other angles are modified (see 4.3.5; 3.3.6 of Edition 2009); d) The volume ratio and density of the solid matter in the transmitted medium are modified (see 5.1.3; 4.2 of Edition 2009); e) The provisions of pump shaft power in the range of 0.7-1.3 times of the specified flow rate are modified (see 5.2.5; 4.4.5 of Edition 2009). f) The provisions on the passing capacity of motor-pumps are added (see 5.2.7); g) The provisions of motor-pump motor power when the density of transmitted medium ρ≤1.05×103 kg/m3 are added (see 5.2.8); h) The motor efficiency and power factor are modified (see 5.3.1; 4.5.1 of Edition 2009); i) The temperature rise limit of stator winding of motor-pump motor are modified (see 5.3.9; 4.6 of Edition 2009); j) The provisions on repeated withstand voltage test of motor-pump motor are modified (see 5.3.12; 4.9 of Edition 2009). k) The material requirements of main components of motor-pump are modified (see 5.4; 4.25 of Edition 2009); l) The motor rotor balance requirements are added (see 5.5.3); m) The provisions on outgoing cables of motor-pumps are modified (see 5.6; 4.13.2 of Edition 2009); n) The provisions on performance test of motor-pumps are modified (see 6.2; 5.2 of Edition 2009). o) The provisions on performance test of motor-pump motor are modified (see 6.4; 5.3 of Edition 2009); p) The provisions on inspection of motor-pump outgoing cables are added (see 6.8); q) The provisions on appearance inspection of motor-pumps are added (see 6.10); r) The curve in Annex A is modified (see Annex A hereof; Annex A of Edition 2009). Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. The issuing body of this standard shall not be held responsible for identifying any or all such patent rights. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of National Technical Committee on Agricultural Machinery of Standardization Administration of China (SAC/TC 201). This standard was firstly issued in 2009, this edition is the first revision. Waste submersible motor-pumps 1 Scope This standard specifies the type, model, basic parameters, technical requirements, test methods, inspection rules as well as marking, packaging, storage and transportation of waste submersible motor-pumps. This standard is applicable to single-phase or three-phase waste submersible motor-pumps (hereinafter referred to as "motor-pump") for pumping all kinds of sewage (waste water) or mixed liquid containing insoluble solid substances such as silt, fiber, feces and river mud fertilizer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this standard and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 191 Packaging — Pictorial Marking for Handling of Goods GB 755 Rotating electrical machines — Rating and performance GB/T 1176 Casting Copper and Copper Alloys GB/T 1220 Stainless steel bars GB/T 1348 Spheroidal graphite iron castings GB/T 1971 Rotating electrical machines — Terminal markings and direction of rotation GB/T 2828.1-2012 Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3098.6 Mechanical properties of fasteners — Stainless steel Bolts,screws and studs GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machines (IP code) — Classification GB/T 5013.4 Rubber insulated cables of rated voltages up to and including 450/750V — Part 4:Cords and flexible cables GB/T 9239.1 Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerances GB/T 9439 Grey iron castings GB 10395.8 Tractors and machinery for agriculture and forestry — Technical means for ensuring safety — Part 8: Irrigation pumps and machines GB 10396 Tractors, machinery for agriculture and forestry, powered lawn and garden equipment — Safety signs and hazard pictorials — General principles GB/T 12785-2014 Test methods for submersible motor-pumps GB/T 13306 Plates GB/T 17241.6 Integral cast iron flanges GB/T 20878 Stainless and heat-resisting steels — Designation and chemical composition GB/T 22715 Impulse voltage withstand levels of form-wound stator coils for rotating a.c. machines JB/T 5673 Agricultural and forestry tractors and machinery — General requirements of painting JB/T 6880.1 Grey iron castings for pumps JB/T 6880.2 Steel castings for pumps JB/T 6880.3 Castings for pumps — Part 3: Erosive wear-resistant white iron castings of pumps JB/T 8735.2 Rubber insulated cords and flexible cables of rated voltages up to and including 450/750 V — Part 2: Tough rubber sheathed flexible cables for general purposes JB/T 8735.3 Rubber insulated cords and flexible cables of rated voltages up to and including 450/750 V — Part 3: Rubber insulated braided cords JB/T 8996-2014 Guide to the selection of high-voltage cables JB/T 11923 Submersible motor-pumps — Reliability evaluation methods JB/T 12728-2016 Specification and the energy efficiency grades for Y, YX series three-phase high voltage induction motors (Frame size 355~630) 3 Terms and definitions No terms and definitions are listed in this standard. 4 Type, model and basic parameters 4.1 Type 4.1.1 The motor-pump is single-stage or multi-stage vertical pump, and the pump is coaxial with the motor. 4.1.2 By the impeller structure, the motor-pump is classified into: a) vortex impeller; b) semi-open blade impeller; c) closed blade impeller; d) single or double channel impeller; e) spiral centrifugal impeller; f) mixed-flow impeller; g) axial-flow impeller. 4.1.3 The type characteristic of motor-pump is expressed in capital Chinese phonetic alphabet: a) X——vortex; b) H——mixed-flow; c) Z——axial-flow; Impeller structures that is channel, spiral centrifugal, closed and semi-open are not marked. 4.1.4 The motor characteristic of motor-pump is expressed in capital Chinese phonetic alphabet: a) S——water-filled; b) Y——oil-filled; c) D——single-phase; d) G——high voltage (three-phase dry motor with 660 V and below is not marked). 4.1.5 For levels of enclosure protection of motor-pump is IPX8 specified in GB/T 4942.1-2006. The protection level of special requirements shall be determined by both parties through negotiation according to the provisions of GB/T 4942.1-2006. 4.1.6 The motor-pump quota is a continuous quota based on the continuous working system (S1). 4.2 Model 4.2.1 The model of motor-pump consists of capital Chinese phonetic alphabet and Arabic numeral. The specific representation methods are as follows: Example 1: The mixed-flow waste submersible motor-pumps which specified flow is 4 860 m3/h, specified head is 5.4 m, rated power is 185 kW, accompany with three-phase motor with a voltage of 380 V, is marked as: WQH4860-5.4-185 Example 2: The axial-flow waste submersible motor-pumps which specified flow is 29 000 m3/h, specified head is 2.8 m, rated power is 500 kW, accompany with three-phase motor with a voltage of 6 000 V, is marked as: WQZG29000-2.8-500 Example 3: The closed waste submersible motor-pumps which specified flow is 5 m3/h, specified head is 7 m, rated power is 0.55 kW, accompany with single-phase motor with a voltage of 220 V, is marked as: WQD5-7-0.55 Example 4: The closed waste submersible motor-pumps with cutting mechanism which specified flow is 50 m3/h, specified head is 15 m, rated power is 7.5 kW, accompany with three-phase motor with a voltage of 380 V, is marked as: WQ50-15-7.5/QG Example 5: The closed stainless steel waste submersible motor-pumps which specified flow is 50 m3/h, specified head is 15 m, rated power is 7.5 kW, accompany with three-phase motor with a voltage of 380 V, is marked as: WQ50-15-7.5G 4.2.2 Supplementary identification refers to the description or identification of the necessity of products made by the enterprise according to the contract or regulations, which be or not be marked as required.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Type, model and basic parameters 5 Technical requirements 6 Test methods 7 Inspection rules 8 Marking, packaging, storage and transportation Annex A (Nominative) Determination of motor-pump efficiency

污水污物潜水电泵 1 范围 本文件规定了污水污物潜水电泵的型式、型号、基本参数，技术要求，试验方法，检验规则和标志，包装、贮存和运输。 本文件适用于输送各类污（废）水或含有泥沙、纤维物、粪便、河泥肥等不溶固相物的混合液体的单相或三相污水污物潜水电泵（以下简称“电泵”）。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。 GB/T 191 包装储运图示标志 GB/T 755 旋转电机 定额和性能 GB/T 1176 铸造铜及铜合金 GB/T 1220 不锈钢棒 GB/T 1348 球墨铸铁件 GB/T 1971 旋转电机 线端标志与旋转方向 GB/T 2828.1-2012 计数抽样检验程序 第1部分：按接收质量限（AQL）检索的逐批检验抽样计划 GB/T 3098.6 紧固件机械性能 不锈钢螺栓、螺钉和螺柱 GB/T 4942.1-2006 旋转电机整体结构的防护等级（IP代码）分级 GB/T 5013.4 额定电压450/750 V及以下橡皮绝缘电缆 第4部分：软线和软电缆 GB/T 9239.1-2006 机械振动 恒态（刚性）转子平衡品质要求 第1部分：规范与平衡允差的检验 GB/T 9439 灰铸铁件 GB 10395.8 农林拖拉机和机械 安全技术要求 第8部分：排灌泵和泵机组 GB 10396 农林拖拉机和机械、草坪和园艺动力机械、安全标志和危险图形 总则 GB/T 12785-2014 潜水电泵 试验方法 GB/T 13306 标牌 GB/T 17241.6 整体铸铁法兰 GB/T 20878 不锈钢和耐热钢 牌号及化学成分 GB/T 22715 旋转交流电机定子成型线圈耐冲击电压水平 JB/T 5673 农林拖拉机及机具 涂漆 通用技术条件 JB/T 6880.1 泵用灰铸铁件 JB/T 6880.2 泵用铸钢件 JB/T 6880.3 泵用铸件 第3部分：泵用抗磨蚀白口铸铁件 JB/T 8735.2 额定电压450/750 V及以下橡皮绝缘软线和电缆 第2部分：通用橡套软电缆 JB/T 8735.3 额定电压450/750 V及以下橡皮绝缘软线和电缆 第3部分：橡皮绝缘编织软电线 JB/T 8996-2014 高压电缆选择导则 JB/T 11923 潜水电泵 可靠性考核评定方法 JB/T 12728-2016 Y、YX系列高压三相异步电动机技术条件及能效分级（机座号335～630） 3 术语和定义 本文件没有需要界定的术语和定义。 4 型式、型号和基本参数 4.1 型式 4.1.1 电泵为单级或多级立式结构，泵与电机同轴。 4.1.2 电泵按叶轮的结构分为： a）旋流式叶轮； b）半开式叶片式叶轮； c）闭式叶片式叶轮； d）单或双流道式叶轮； e）螺旋离心式叶轮； f）混流式叶轮； g）轴流式叶轮。 4.1.3 电泵型式特征用大写汉语拼音字母表示： a） X——旋流式； b） H——混流式； c） Z———轴流式。 叶轮结构为流道式、螺旋离心式，闭式和半开式不标注。 4.1.4 电泵电机特征用大写汉语拼音字母表示： a） S——充水式； b） Y——充油式； c） D——单相； d） G——高压（660 V及以下三相干式电机不标注）。 4.1.5 电泵的外壳防护等级为GB/T 4942.1-2006中规定的IPX8。特殊要求的防护等级，由供需双方按GB/T 4942.1-2006的规定协商确定。 4.1.6 电泵的定额是以连续工作制（S1）为基准的连续定额。 4.2 型号 4.2.1 电泵的型号由大写汉语拼音字母和阿拉伯数字等组成，表示方法如下： 补充标识（根据需要标注） 切割机构（无辅助机构不标注） 额定功率，单位为千瓦（kW） 规定扬程，单位为米（m） 规定流量，单位为立方米每小时（m3/h） 电机特征 型式特征 污水污物潜水电泵 示例1：规定流量为4 860 m3/h，规定扬程为5.4 m，额定功率为185 kW，配套三相电机，电压为380 V，混流式污水污物潜水电泵，其标记为： WQH4860-5.4-185 示例2：规定流量为29 000 m3/h，规定扬程为2.8 m，额定功率为500 kW，配套三相电机，电压为6000 V，轴流式污水污物潜水电泵，其标记为： WQZG29000-2.8-500 示例3：规定流量为5 m3/h，规定扬程为7 m，额定功率为0.55kW，配套单相电机，电压为220V，闭式污水污物潜水电泵，其标记为： WQD5-7-0.55 示例4：规定流量为50 m3/h，规定扬程为15 m，额定功率为7.5 kW，配套三相电机，电压为380 V，闭式带切割机构的污水污物潜水电泵，其标记为： WQ50-15-7.5/QG 示例5：规定流量为50 m3/h，规定扬程为15 m，额定功率为7.5 kW，配套三相电机，电压为380 V，闭式不锈钢污水污物潜水电泵，其标记为： WQ50-15-7.5G 4.2.2 补充标识是指企业根据合同或规定对产品所做的必要性的说明或标识，根据需要标注或不标注。 4.3 基本参数 4.3.1 在电源频率为50 Hz，电压为单相（220 V）或三相（380 V，660 V，1.14 kV，3 kV，6 kV、10 kV）时和规定的使用条件下，电泵的基本参数应符合表1和表2的规定。 4.3.2 表1所列参数为单级电泵规定点参数，对多级电泵规定点参数应符合表1单级电泵流量和型式下的电泵效率，其扬程应符合设计规定，且通过颗粒最大直径对2级应不小于单级电泵的0.75倍、对3级及以上应不小于单级电泵的0.5倍。 4.3.3 当电泵的流量参数不符合表1或表2的规定时，电泵的效率按附录A的规定确定，其实际值不得低于确定值，且通过颗粒最大直径应不低于表1或表2相邻排出口径和流量下的值。 4.3.4 电泵带有切割机构时，电泵效率为[（表1规定值或按附录A的确定值）－4％]。 4.3.5 表2规定为叶片安放角为0°的轴流式或混流式电泵的基本参数；其他角度为变型产品，其基本参数应符合供需双方确定的要求或合同规定，但电泵效率不应小于[（表2规定值或按附录A的确定值）－5％]。 4.3.6 表1和表2所列的电泵排出口径为推荐值，其排出口径也可根据需要或按合同规定确定。 4.3.7 当电泵的同步转速与表1和表2不符时，可根据需要或按合同提高或降低，但电泵效率不得低于本文件规定。 表1 序号 排出口径mm 规定流量m3/h 规定扬程m 额定功率kW 同步转速r/min 电泵效率％ 电泵泵效率％ 通过颗粒最大直径mm 旋流式 其他式 旋流式 其他式 注1：电泵效率为清洁冷水条件下和对应通过颗粒最大直径的指标。 注2：22.6/24.4分子表示单相电泵效率，分母表示三相电泵效率。 注3：转速均不折算。 注4：电泵泵效率仅限于确定电泵效率用。 注5：3 000/1 500或1 500/1 000表示该功率等级的电泵有两种转速。 表2 序号 排出口径mm 规定流量m3/h 规定扬程m 额定功率kW 同步转速r/min 电泵效率％ 电泵泵效率％ 通过颗粒最大直径mm 轴流式或混流式 轴流式或混流式 注1：电泵效率为清洁冷水条件下和对应通过颗粒最大直径的指标。 注2：58.9/56.6分子表示低压电泵效率，分母表示高压电泵效率。 注3：转速均不折算。 注4：电泵泵效率仅限于确定电泵效率用。 5 技术要求 5.1 基本要求 5.1.1 电泵应符合本文件的要求，并按经规定程序批准的图样及技术文件制造。 5.1.2 电泵使用安装分为移动安装、自耦安装、井筒安装、基础安装四种，由供需双方按合同要求确定。 5.1.3 电泵在下列使用条件下应能连续正常运行： a） 以叶轮中心为基准，潜入水下深度不超过5 m； b） 输送介质温度应不超过40℃； c） 输送介质pH值为4～10； d） 输送介质的固相物的容积比在3％以下； e）输送介质的运动黏度为7×10－7 m2/s～23×10－6 m2/s； f）输送介质中固相物最大颗粒符合表1和表2的规定； g）输送介质的密度为≤1.3×103 kg/m3。 5.1.4 电泵在运行期间，电源电压和频率的变化及其对电机性能和温升限制的影响应符合GB/T 755的规定。 5.2 电泵性能及其偏差 5.2.1 电泵性能均以实际转速为基准，不折算（即实测值）。 5.2.2 电泵配套电机的额定功率应符合按式（1）和式（2）计算的值： PN＝（ρgQH/3 600）/ηSP （1） PE≥K·PN （2） 式中： ρ——输送介质的密度，单位为千克每立方米（kg/m3）； g——重力加速度，g＝9.81 m/s2； Q——流量，单位为立方米每小时（m3/h）； H——扬程，单位为米（m）； ηSP——为电泵泵效率，％； PE——电泵配套电机的额定功率，单位为千瓦（kW）； KE——电泵功率配套系数，当ρ≤1.05×103 kg/m3时，K＝1.2；当ρ＞1.05×103kg/m3时，K＝1.3； PN——电泵规定点轴功率，单位为千瓦（kW）。 5.2.3 电泵流量在0.7倍~1.3倍的规定流量范围内，轴功率应不超过电泵的额定功率。 5.2.4 电泵在规定流量下的扬程应不低于94％的规定扬程；对轴流式应不低于90％的规定扬程。 5.2.5 在0.7倍～1.3倍规定流量范围内，泵轴功率不超过电泵功率且电泵效率高于本文件规定值时，允许降低电泵电机的配套功率档次，但应符合5.2.3的规定，电泵效率应按新的电机功率重新按附录A确定。 5.2.6 电泵效率的下偏差为－0.045倍的规定电泵效率。 5.2.7 电泵的通过能力应大于或等于表1或表2规定的通过颗粒最大直径值。 5.2.8 当输送介质的密度ρ≤1.05×103 kg/m3时，允许降低电泵电机的配套功率档次，但应符合5.2.3的规定，电泵效率应按新的电机功率重新按附录A确定。 5.3 电泵电机的电气性能及要求 5.3.1 在功率、电压及频率为额定值时，效率和功率因数的保证值应符合表3和表4的规定。