標準編號:	GB/T 24674-2021
中文名稱:	污水污物潛水電泵
英文名稱:	Waste submersible motor-pumps
中標分類:	B91    農機具
行業分類:	GB    國家標準
ICS分類:	65.060.35 65.060.35    灌溉和排放設備 65.060.35
發布機構:	國家市場監督管理總局 國家標準化管理委員會
發布日期:	2021-04-30
實施日期:	2021-11-1
標準狀態:	valid
替代舊標準:	GB/T 24674-2009 污水污物潛水電泵
翻譯語言:	英文
文件格式:	PDF
中文字符數:	25000 字
翻譯價格(元):	1300.0
交付時間:	付款后 1 個工作日

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

污水污物潛水電泵 1 范圍 本文件規定了污水污物潛水電泵的型式、型號、基本參數，技術要求，試驗方法，檢驗規則和標志，包裝、貯存和運輸。 本文件適用于輸送各類污（廢）水或含有泥沙、纖維物、糞便、河泥肥等不溶固相物的混合液體的單相或三相污水污物潛水電泵（以下簡稱“電泵”）。 2 規范性引用文件 下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于本文件。 GB/T 191 包裝儲運圖示標志 GB/T 755 旋轉電機 定額和性能 GB/T 1176 鑄造銅及銅合金 GB/T 1220 不銹鋼棒 GB/T 1348 球墨鑄鐵件 GB/T 1971 旋轉電機 線端標志與旋轉方向 GB/T 2828.1-2012 計數抽樣檢驗程序 第1部分：按接收質量限（AQL）檢索的逐批檢驗抽樣計劃 GB/T 3098.6 緊固件機械性能 不銹鋼螺栓、螺釘和螺柱 GB/T 4942.1-2006 旋轉電機整體結構的防護等級（IP代碼）分級 GB/T 5013.4 額定電壓450/750 V及以下橡皮絕緣電纜 第4部分：軟線和軟電纜 GB/T 9239.1-2006 機械振動 恒態（剛性）轉子平衡品質要求 第1部分：規范與平衡允差的檢驗 GB/T 9439 灰鑄鐵件 GB 10395.8 農林拖拉機和機械 安全技術要求 第8部分：排灌泵和泵機組 GB 10396 農林拖拉機和機械、草坪和園藝動力機械、安全標志和危險圖形 總則 GB/T 12785-2014 潛水電泵 試驗方法 GB/T 13306 標牌 GB/T 17241.6 整體鑄鐵法蘭 GB/T 20878 不銹鋼和耐熱鋼 牌號及化學成分 GB/T 22715 旋轉交流電機定子成型線圈耐沖擊電壓水平 JB/T 5673 農林拖拉機及機具 涂漆 通用技術條件 JB/T 6880.1 泵用灰鑄鐵件 JB/T 6880.2 泵用鑄鋼件 JB/T 6880.3 泵用鑄件 第3部分：泵用抗磨蝕白口鑄鐵件 JB/T 8735.2 額定電壓450/750 V及以下橡皮絕緣軟線和電纜 第2部分：通用橡套軟電纜 JB/T 8735.3 額定電壓450/750 V及以下橡皮絕緣軟線和電纜 第3部分：橡皮絕緣編織軟電線 JB/T 8996-2014 高壓電纜選擇導則 JB/T 11923 潛水電泵 可靠性考核評定方法 JB/T 12728-2016 Y、YX系列高壓三相異步電動機技術條件及能效分級（機座號335～630） 3 術語和定義 本文件沒有需要界定的術語和定義。 4 型式、型號和基本參數 4.1 型式 4.1.1 電泵為單級或多級立式結構，泵與電機同軸。 4.1.2 電泵按葉輪的結構分為： a）旋流式葉輪； b）半開式葉片式葉輪； c）閉式葉片式葉輪； d）單或雙流道式葉輪； e）螺旋離心式葉輪； f）混流式葉輪； g）軸流式葉輪。 4.1.3 電泵型式特征用大寫漢語拼音字母表示： a） X——旋流式； b） H——混流式； c） Z———軸流式。 葉輪結構為流道式、螺旋離心式，閉式和半開式不標注。 4.1.4 電泵電機特征用大寫漢語拼音字母表示： a） S——充水式； b） Y——充油式； c） D——單相； d） G——高壓（660 V及以下三相干式電機不標注）。 4.1.5 電泵的外殼防護等級為GB/T 4942.1-2006中規定的IPX8。特殊要求的防護等級，由供需雙方按GB/T 4942.1-2006的規定協商確定。 4.1.6 電泵的定額是以連續工作制（S1）為基準的連續定額。 4.2 型號 4.2.1 電泵的型號由大寫漢語拼音字母和阿拉伯數字等組成，表示方法如下： 補充標識（根據需要標注） 切割機構（無輔助機構不標注） 額定功率，單位為千瓦（kW） 規定揚程，單位為米（m） 規定流量，單位為立方米每小時（m3/h） 電機特征 型式特征 污水污物潛水電泵 示例1：規定流量為4 860 m3/h，規定揚程為5.4 m，額定功率為185 kW，配套三相電機，電壓為380 V，混流式污水污物潛水電泵，其標記為： WQH4860-5.4-185 示例2：規定流量為29 000 m3/h，規定揚程為2.8 m，額定功率為500 kW，配套三相電機，電壓為6000 V，軸流式污水污物潛水電泵，其標記為： WQZG29000-2.8-500 示例3：規定流量為5 m3/h，規定揚程為7 m，額定功率為0.55kW，配套單相電機，電壓為220V，閉式污水污物潛水電泵，其標記為： WQD5-7-0.55 示例4：規定流量為50 m3/h，規定揚程為15 m，額定功率為7.5 kW，配套三相電機，電壓為380 V，閉式帶切割機構的污水污物潛水電泵，其標記為： WQ50-15-7.5/QG 示例5：規定流量為50 m3/h，規定揚程為15 m，額定功率為7.5 kW，配套三相電機，電壓為380 V，閉式不銹鋼污水污物潛水電泵，其標記為： WQ50-15-7.5G 4.2.2 補充標識是指企業根據合同或規定對產品所做的必要性的說明或標識，根據需要標注或不標注。 4.3 基本參數 4.3.1 在電源頻率為50 Hz，電壓為單相（220 V）或三相（380 V，660 V，1.14 kV，3 kV，6 kV、10 kV）時和規定的使用條件下，電泵的基本參數應符合表1和表2的規定。 4.3.2 表1所列參數為單級電泵規定點參數，對多級電泵規定點參數應符合表1單級電泵流量和型式下的電泵效率，其揚程應符合設計規定，且通過顆粒最大直徑對2級應不小于單級電泵的0.75倍、對3級及以上應不小于單級電泵的0.5倍。 4.3.3 當電泵的流量參數不符合表1或表2的規定時，電泵的效率按附錄A的規定確定，其實際值不得低于確定值，且通過顆粒最大直徑應不低于表1或表2相鄰排出口徑和流量下的值。 4.3.4 電泵帶有切割機構時，電泵效率為[（表1規定值或按附錄A的確定值）－4％]。 4.3.5 表2規定為葉片安放角為0°的軸流式或混流式電泵的基本參數；其他角度為變型產品，其基本參數應符合供需雙方確定的要求或合同規定，但電泵效率不應小于[（表2規定值或按附錄A的確定值）－5％]。 4.3.6 表1和表2所列的電泵排出口徑為推薦值，其排出口徑也可根據需要或按合同規定確定。 4.3.7 當電泵的同步轉速與表1和表2不符時，可根據需要或按合同提高或降低，但電泵效率不得低于本文件規定。 表1 序號 排出口徑mm 規定流量m3/h 規定揚程m 額定功率kW 同步轉速r/min 電泵效率％ 電泵泵效率％ 通過顆粒最大直徑mm 旋流式 其他式 旋流式 其他式 注1：電泵效率為清潔冷水條件下和對應通過顆粒最大直徑的指標。 注2：22.6/24.4分子表示單相電泵效率，分母表示三相電泵效率。 注3：轉速均不折算。 注4：電泵泵效率僅限于確定電泵效率用。 注5：3 000/1 500或1 500/1 000表示該功率等級的電泵有兩種轉速。 表2 序號 排出口徑mm 規定流量m3/h 規定揚程m 額定功率kW 同步轉速r/min 電泵效率％ 電泵泵效率％ 通過顆粒最大直徑mm 軸流式或混流式 軸流式或混流式 注1：電泵效率為清潔冷水條件下和對應通過顆粒最大直徑的指標。 注2：58.9/56.6分子表示低壓電泵效率，分母表示高壓電泵效率。 注3：轉速均不折算。 注4：電泵泵效率僅限于確定電泵效率用。 5 技術要求 5.1 基本要求 5.1.1 電泵應符合本文件的要求，并按經規定程序批準的圖樣及技術文件制造。 5.1.2 電泵使用安裝分為移動安裝、自耦安裝、井筒安裝、基礎安裝四種，由供需雙方按合同要求確定。 5.1.3 電泵在下列使用條件下應能連續正常運行： a） 以葉輪中心為基準，潛入水下深度不超過5 m； b） 輸送介質溫度應不超過40℃； c） 輸送介質pH值為4～10； d） 輸送介質的固相物的容積比在3％以下； e）輸送介質的運動黏度為7×10－7 m2/s～23×10－6 m2/s； f）輸送介質中固相物最大顆粒符合表1和表2的規定； g）輸送介質的密度為≤1.3×103 kg/m3。 5.1.4 電泵在運行期間，電源電壓和頻率的變化及其對電機性能和溫升限制的影響應符合GB/T 755的規定。 5.2 電泵性能及其偏差 5.2.1 電泵性能均以實際轉速為基準，不折算（即實測值）。 5.2.2 電泵配套電機的額定功率應符合按式（1）和式（2）計算的值： PN＝（ρgQH/3 600）/ηSP （1） PE≥K·PN （2） 式中： ρ——輸送介質的密度，單位為千克每立方米（kg/m3）； g——重力加速度，g＝9.81 m/s2； Q——流量，單位為立方米每小時（m3/h）； H——揚程，單位為米（m）； ηSP——為電泵泵效率，％； PE——電泵配套電機的額定功率，單位為千瓦（kW）； KE——電泵功率配套系數，當ρ≤1.05×103 kg/m3時，K＝1.2；當ρ＞1.05×103kg/m3時，K＝1.3； PN——電泵規定點軸功率，單位為千瓦（kW）。 5.2.3 電泵流量在0.7倍~1.3倍的規定流量范圍內，軸功率應不超過電泵的額定功率。 5.2.4 電泵在規定流量下的揚程應不低于94％的規定揚程；對軸流式應不低于90％的規定揚程。 5.2.5 在0.7倍～1.3倍規定流量范圍內，泵軸功率不超過電泵功率且電泵效率高于本文件規定值時，允許降低電泵電機的配套功率檔次，但應符合5.2.3的規定，電泵效率應按新的電機功率重新按附錄A確定。 5.2.6 電泵效率的下偏差為－0.045倍的規定電泵效率。 5.2.7 電泵的通過能力應大于或等于表1或表2規定的通過顆粒最大直徑值。 5.2.8 當輸送介質的密度ρ≤1.05×103 kg/m3時，允許降低電泵電機的配套功率檔次，但應符合5.2.3的規定，電泵效率應按新的電機功率重新按附錄A確定。 5.3 電泵電機的電氣性能及要求 5.3.1 在功率、電壓及頻率為額定值時，效率和功率因數的保證值應符合表3和表4的規定。