JB/T 5118—2001 This standard is a revision and merger of JB/T 5118—1991 "Types and basic parameters of agricultural sewage and sewage submersible electric pumps" and JB/T 5119—1991 "Technical conditions for agricultural sewage and sewage submersible electric pumps". During the revision, the scope of application was expanded, some technical requirements were adjusted, and installation methods and other requirements were added. This standard specifies the types, models and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of sewage and sewage submersible electric pumps. This standard is applicable to single-phase or three-phase sewage and sewage submersible electric pumps that transport various types of sewage or mixed liquids containing insoluble solid phases such as sediment, fiber, feces, river mud and fertilizer, with a flow rate of 3.0m3/h~43350m3/h, a head of 1.4m~100m, and a power of 0.25kW~1600kW. This standard was first issued in 1991 as JB/T 5118-91 and JB/T 5119-91. This is the first revision. JB/T 5118-2001 Sewage and wastewater submersible electric pumps JB/T5118-2001 Standard download decompression password: www.bzxz.net

ICS 65.060. 35
Machinery Industry Standard of the People's Republic of China
JB/T5118—2001
Wastesubmersiblemotor-pumps
2001-09-03 Issued
China Machinery Industry Federation
2001-12-01 Implementation
JB/T5118-2001
1 Scope·
Cited Standards·
3 Type, model and Basic parameters
4 Technical requirements·
5 Test methods·
6 Inspection rules
7 Marking, packaging, storage and transportation
Appendix A (Appendix to the standard) Determination of electric pump efficiency
JB/T5118-2001
This standard is a revision of JB/T5118-1991 "Types and basic parameters of agricultural sewage and sewage submersible electric pumps" and JB/T5119-1991 "Technical conditions for agricultural sewage and sewage submersible electric pumps", and the original two standards are merged into one. The contents of JB5118-1991 and JB/T5119-1991 that are still applicable are retained during the revision. At the same time, the following modifications have been made according to the actual and development situation of scientific research and production: 1. The scope of application has been expanded; 2. Some unreasonable, unnecessary or impossible technical requirements have been removed, such as decomposition of the whole; 3. The types and specifications of sewage and sewage submersible pumps have been increased; 4. The high-voltage part of sewage and sewage submersible pumps has been increased; 5. The pump efficiency of sewage and sewage submersible pumps has been appropriately adjusted; 6. Safety and reliability requirements have been increased; 7. The maximum diameter of particles passing through sewage and sewage submersible pumps has been adjusted; 8. The manufacturing materials of sewage and sewage submersible pumps have been stipulated in principle; 9. The requirements for installation methods have been increased: 10. The requirements for storage and transportation have been increased; 11. The inappropriate parts in the appendix have been removed. Appendix A of this standard is the appendix of the standard. This standard replaces JB/T5118-1991 and JB/T5119-1991 from the date of implementation. This standard is proposed and managed by the National Agricultural Machinery Standardization Technical Committee. The responsible drafting units of this standard are: Fluid Machinery Engineering Technology Center of Jiangsu University of Science and Technology, China Agricultural Mechanization Research Institute. The participating drafting units of this standard are: Zhejiang Fengqiu Pump Industry Co., Ltd., Jiangsu Qizhou Group Co., Ltd., Zhejiang Xinjie Pump Industry Co., Ltd. and Shanghai Kaiquan Pump Industry (Group) Co., Ltd. The main drafters of this standard are: Wang Yang, Zhang Xiansheng, Shi Weidong, He Zhifeng, Han Youjun, Xu Mintian, Xia Dingliang. The previous versions of the standards replaced by this standard are: .B/T5118—1991;
—B/T5119—1991.
1 Scope
Machinery Industry Standard of the People's Republic of China
Wastesubmersiblemotor-pumps
JB/T5118—2001
Replaces JB/5118—1991
JB/T5119—1991
This standard specifies the type, model and basic parameters, technical requirements, test methods, inspection rules and markings, packaging, storage and transportation of sewage and sewage submersible motor-pumps.
This standard is applicable to single-phase or three-phase sewage and sewage submersible motor-pumps (hereinafter referred to as motor-pumps) that transport various types of sewage or mixed liquids containing insoluble solid phases such as sediment, fiber, feces, river mud and fertilizer, with a flow rate of 3.0~43350m3/h, a head of 1.4~100m, and a power of 0.25~1600kW.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB 191—2000
GB755—2000
GB/T 1176—1987
GB/T1220—1992wwW.bzxz.Net
GB/T 1348—1988
GB/T2828—1987
GB/T 4942.1—1985
GB 5013.4—1997
GB/T 9493—1988
GB 10395.8—1999
GB/T 12785—1991
GB/T 17241—1998
JB/T5673—1991
JB/T6880.1~6880.3—1993
JB/T 7593—1994
JB/T50080—1996
JB/Z293—1987
Pictorial markings for packaging, storage and transportation
Ratings and performances of rotating electrical machines
Technical conditions for cast copper alloys
Stainless steel bars
Ductile iron castings
Motor line terminal markings and direction of rotation
Counting sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)Grading of protection for motor housings
Rubber insulated flexible cables of rated voltage 450/50V and below Part 4:
Flexible cords and flexible cables
Grey cast iron castings
Agriculture and forestry Safety technical requirements for tractors and machinery Part 8: Irrigation and drainage pumps and pump units Test methods for submersible electric pumps
Cast iron pipe flanges
General technical conditions for painting of agricultural and forestry tractors and implements Pump castings
Technical conditions for Y series high-voltage three-phase asynchronous motors Reliability assessment and evaluation methods for submersible electric pumps
Test specification for interturn insulation of stator windings of AC high-voltage motors Approved by China Machinery Industry Federation on September 3, 2001 and implemented on December 1, 2001
Type, model and basic parameters
3.1 Type
5118-2001
3.1.1 The electric pump is a single-stage or multi-stage vertical type, and the pump and motor are coaxial. 3.1.2 Electric pumps are classified according to the structure of the impeller:
a) Cyclone type: Cyclone impeller;
b) Semi-open type: Semi-open blade impeller; c) Closed type: Closed blade impeller;
d) Channel type: Single or double channel impeller; e) Screw type: Screw centrifugal impeller;
f) Mixed flow type: Mixed flow impeller;
g) Axial flow type: Axial flow impeller;
3.1.3 The enclosure protection level of the electric pump is IP×8. When there are special requirements, it should comply with the provisions of GB/T4942.1. 3.1.4 The quota of the electric pump is a continuous quota based on the continuous working system (S1). 3.1.5 The electric pump rotates counterclockwise when viewed from the water inlet. 3.2 Model
Model indication method
The model of the electric pump consists of Chinese pinyin letters and Arabic numerals, as follows: wa
2 Electric pump type characteristics
Electric pump type characteristics are expressed by Chinese pinyin letters: X——cyclone type;
H—mixed flow type;
ZAxial flow type:
Cutting mechanism (no marking without auxiliary mechanism) Electric pump rated power, kw
Electric pump specified head, m
Electric pump specified flow rate, m/h
Electric pump motor characteristics
Electric pump type characteristics
Sewage and sewage submersible electric pump
The impeller structure is channel type, spiral centrifugal type, closed type and semi-open type and is not marked. 3.2.3 Characteristics of electric pump motors
Characteristics of electric pump motors are indicated by Chinese phonetic letters: S—water-filled type;
Y oil-filled type:
D single-phase:
JB/T5118—2001
G—high voltage (3-phase dry motors of 660V and below are not marked). 3.2.4 Marking example
Specified flow rate is 4860m/h, specified head is 5.4m, rated power is 160kW, equipped with a three-phase motor, voltage is 380V, mixed flow sewage and sewage submersible electric pump, its mark is: WQH4860-5.4-160. The specified flow rate is 29000m2/h, the specified head is 2.8m, the rated power is 450kW, the matching three-phase motor, the voltage is 6000V, the axial flow sewage submersible pump, its mark is: WQZG29000-2.8-450. The specified flow rate is 5m/h, the specified head is 7m, the rated power is 0.37kW, the matching single-phase motor, the voltage is 220V, the closed sewage submersible pump, its mark is: WQD5-7-0.37. 3.3 Basic parameters
3.3.1 When the power frequency is 50Hz, the voltage is single-phase (220V) or three-phase (380V, 660V, 3000V, 6000V, 10kV) and the specified conditions of use, the basic parameters of the electric pump shall comply with the provisions of Table 1 and Table 2. 3.3.2 The parameters listed in Table 1 are the specified point parameters of the single-stage electric pump. The specified point parameters of the multi-stage electric pump shall comply with the efficiency of the electric pump under the flow rate and type of the single-stage electric pump in Table 1. Its head shall comply with the design requirements, and the maximum diameter of the particles passing through shall not be less than 0.75 times that of the single-stage electric pump. 3.3.3 When the flow rate parameters of the electric pump do not meet the requirements of Table 1, the efficiency of the electric pump can be determined according to the provisions of Appendix A (Appendix to the standard), and its actual value shall not be lower than the determined value.
3.3.4 When the electric pump is equipped with a cutting mechanism, the efficiency of the electric pump is allowed to drop by 4% compared with the value specified in Table 1. 3.3.5 For oil-filled electric pumps, the electric pump efficiency is allowed to decrease by 5% compared with the corresponding values ​​in Tables 1 and 2; for water-filled electric pumps, the electric pump efficiency is allowed to decrease by 3% compared with the corresponding values ​​in Tables 1 and 2. 3.3.6 Table 2 specifies the basic parameters of axial flow or mixed flow electric pumps with a blade placement angle of 0°; other angles are variant products, and their basic parameters should meet the requirements determined by the supply and demand parties or the contract provisions, but the maximum difference between the electric pump efficiency and the specified value in Table 2 should not exceed 5%. 3.3.7 The discharge port diameters of the electric pumps listed in Tables 1 and 2 are recommended values, and their discharge port diameters can also be determined according to needs or contract provisions. 3.3.8 When the synchronous speed of the electric pump does not conform to Tables 1 and 2, it can be increased or decreased according to needs or contract provisions, but the efficiency of the electric pump shall not be lower than that specified in this standard.
Synchronous speed
Electric pump efficiency%
Swirl type
17.7/19.0
232/243
Other types
23.0/24.6
20.5/21.9
26.4/27.7
24.6/25.8||tt| |22.9/24.0
Electric pump efficiency %Through particles
Swirl type
Other types
Maximum diameter
JB/T5118-2001
Table 1 (continued)
Synchronous speed
Electric pump efficiency %
Swirl type
Other types
Electric pump efficiency Rate% through particles
Swirl type
Other types
Maximum diameter
JB/T5118—2001
Table 1 (continued)
Synchronous speed
Electric pump efficiency%
Swirl type
Other types
Electric pump efficiency%
Through particles
Swirl type
Other types
Maximum diameter
JB/T5118-2001
Table 1 (continued)
Synchronous speed
Electric pump efficiency%
Swirl type
Other types
Electric pump efficiency% through particles
Swirl type
Other types
Maximum diameter
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