JB/T 8644-1997 This standard is a revision of GB 10884 and GB 10885. This standard specifies the types and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of single screw pumps. This standard is applicable to single screw pumps (hereinafter referred to as pumps) that transport clean or water-like, pasty, highly viscous corrosive and non-corrosive media containing solid particles and fibers. The maximum working pressure of the pump is 3.6MPa and the maximum flow rate is 265.2m3/h. JB/T 8644-1997 Single Screw Pump JB/T8644-1997 Standard Download Decompression Password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T86441997
Single Screw Pump
1997-[0-05]Released
Ministry of Machinery Industry of the People's Republic of China
1998-01-11Implementation
JB/I86441597
This standard is a revision of GH10884 single-frequency pump type and basic parameters> and GB1U885% single-wax screw system technical conditions. This standard is modified and supplemented as follows: a) Changes in the relationship between flow and pressure in the parameter table; b) Shaft power efficiency relationship; c) Alarm factors caused by eccentric rotation of single-frequency screw pumps, etc. Appendix A of this standard is a suggestive appendix.
Chinese standard is G31088489GB108B589 from the year of effectiveness
This standard is proposed by the National Technical Committee for Standardization. The international standard was established by: Shenzhou Pump Research Institute, Jiangsu Electromechanical Research Institute, Shenyang Water System General Factory, Tianjin Water System General Factory, Taizhou Xinjie Water System Industry Company, Taizhou Jiadi Water System Industry Company, Jiangsu University of Science and Technology Mechanical Research Institute. The main drafters of this standard are Sun Youfa, Xie Guoxian, Xing Zailu, Zhao Hengfeng, Hong Wuyu, Le Bangji, and Xuelong. 1 Scope
Standard of Machinery Industry of the People's Republic of China
Single screw pump
3B/8644--1997
This standard defines the type and six parameters of single screw pump, technical requirements, test methods, test rules, and specifications, and also contains
standard manufacturing for use with clean or containing drive and fiber chain, water-like, high viscosity, and non-standard single screw pump (hereinafter referred to as the object):
The pump has a working pressure of 3.6MP+ and a maximum flow rate of 5.2m/h2. References
The provisions contained in the following standards constitute non-standard provisions by reference in non-standards: When this standard is revised, the version shown is not valid. All standard parts will be used, and all parties using this standard shall use the latest version of the following standards. GB 57)-65
GB 4216-84
CB P113. 3~ 5:13. 6-88
GB/T 13306-9:
GB/T13384$2
JB/T4237-02
JN/T 6&xU.1--93
JB/T 6R80.293
JB/909
JR/T 80795
JB/T 8098-15
3 Type and basic examination
3. 1 Type
Marine fast flange
Explanation and usage
Cast iron pipe
Surface transfer flange
Technical conditions for packaging of electromechanical products
Technical conditions for product lines
Special gray iron parts
Deep steel parts
Die Tuo Zong Jun correction method
Measurement and evaluation method of the phenomenon
Noise flux and evaluation method of the pump
It can be made into horizontal or vertical types. 3.2 Type
3.2. Representation method
The uppercase letters in the model number represent the unit, the path, the medium, the type, and the number of screws (the following are symmetrical), the nominal diameter of the stator screw, and the number of guides. Approved by the Ministry of Machinery Industry on October 5, 1997
Implementation in 199801
3.2.2 Marking example
JB/T 8f44-t997
Specified the standard hole lead
rotor nominal diameter.mm
no treatment: horizontal support
/no letter: water-dispersible and non-rubber-type
N medium with high viscosity (mutual vibration mechanism can be set) conveying medium F, corrosive materials
S: food and medicine materials
, other letters: special materials
letter: special
C, marine
rotor nominal diameter±15mm, flat lead one lead, type, conveying food and medicine medium single lift: G5 15-2: Rotor nominal diameter 351mm. Stator screw hole one in, horizontal, single end punch; G center: 1: rotor nominal diameter center mm suitable for two processes, horizontal, single explosion system: GF-2. 3.3 The effect
3.3.1 The length of the technical model of the East is consistent with the idea of ​​1. 3. 3.2 The single spectrum of the East is shown in Figure 1,
3.1.3 The state of the benzene state of the parent is the non-energy point specified when the source is supplied. 3.3.4 The spectrum is for the new normal temperature clean water when it is used as the above work. 3.3.5 The system sends high-speed and thin-dissipation medium. When the medium is relatively low, the pump speed must be reduced according to the pressure record of the medium. See Attachment A! Tips for 3. 4 direction i1bzxZ.net
from the moving end, east is the reverse direction. JB/T 8644-1997
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JB/T8644
China Fingerprint Department
JB/TA644
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4 Technical requirements
JB/I8644-1997
4.1 The pump shall meet the requirements of the standard and be prepared in accordance with the product drawings and technical documents approved by the prescribed procedures. 4.2 The basic parameters of the system shall meet the requirements of 1. 4.3 The pump shall run continuously and normally under the condition of delivering the medium. a) Humidity less than 30℃, can reach 20-150℃ (optional): b) Maximum solid content in the medium does not exceed 4% (can reach 0.5% for micro particles); b) The maximum length of the rotor is not more than 0.4 times the rotor distance; 4. It should be able to withstand the following conditions: a) Periodic mode 22.5\;
6 7.5°;
1) To be continued 15°5
d) After the viscosity is predicted 5
45 pump exploration value can be determined under the following conditions:
) According to the rotor distance: the size of the pump will be divided into four categories: 1) The first category, e ton 5.5mm1~3 level pump,
2) The second category, 5.5mmc10mm 1-3 and 5.5mm 1-- system: the third category, 0mm
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