JB/T 9740.4-1999 This standard is a revision of ZB F11 001-89 "Installation Specifications for Low-speed Wind Turbines". During the revision, only editorial changes were made according to relevant regulations, and the main technical content remained unchanged. This standard specifies the technical preparations before the installation of horizontal-axis low-speed wind turbines, the basic requirements for the casting and maintenance of the tower foundation, and the methods and safety rules during installation. This standard applies to the installation and acceptance of wind turbines after installation. This standard was first issued on February 17, 1989. JB/T 9740.4-1999 Installation Specifications for Low-speed Wind Turbines JB/T9740.4-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T9740.1~9740.4--1999
Low speed wind turbine
Low speed wind energy conversion system1999-08-06Promulgated
National Machinery Industry Bureau
Implementation on 2000-01-01
JE/T9740.4—1999
This standard is a revision of ZBF11001-89 "Installation Specifications for Low Speed ​​Wind Turbines". During the revision, only the original standard was revised and revised, and the main technical content remained unchanged. This standard is part of the JB/T9740 series 3 standard for low-speed wind turbines, which includes the following four parts: JB.T9740.1-1999 Low-speed wind turbine series JB/T9740.2-1999 Low-speed wind turbine types and basic parameters JB.T9740.3-1999 Low-speed wind turbine technical specifications JB.T9740.4-1999 Low-speed wind turbine installation specifications This standard replaces ZBFI1001-89 from the date of signing. This standard was proposed and approved by the National Wind Machinery Standardization Technical Inspection Committee. The drafting unit of this standard: Hohhot Leimu Machinery Manufacturing Research Institute: The main drafter of the standard: Shen Jinghui. This standard was first issued on February 17, 1989. [3
1 Scope
Machinery Industry Standard of the People's Republic of China
Installation Specification for Low Speed ​​Wind Turbine
[nstullation gide fnr low apeedwind energyconverslon aystemJH/E9740.4-1999
Baijing 7B FII (01—R9
This standard specifies the technical preparation before installation, tower channel cleaning, basic requirements for support and installation methods and safety rules for horizontal extraction energy fan (hereinafter referred to as wind turbine). This standard applies to the installation and acceptance of wind turbines after installation. 2 General Principles
2.1 The wind turbine to be installed must have a factory certificate of conformity. 2.2 The construction personnel must construct according to the provisions of the standard or other equivalent technical documents, and should comply with the relevant air safety technology, labor protection and other regulations:
2.3 According to the type of wind turbine Features, form a suitable installation team, and arrange on-site command. 3 Technical preparation
3. Before installation, you should read the instruction manual carefully, understand and be familiar with the structural characteristics of the equipment to be installed, master the installation steps and methods of the wind turbine,
3.2 According to the product installation list, check and inspect whether the wind turbine components and parts are in good condition. Missing parts should be replaced, and damaged parts should be repaired or replaced.
3.3 Prepare the base materials, installation tools, and lifting equipment according to the requirements of the instruction manual. 3.4 The installation team must be based on its physical conditions. , formulate necessary construction plans, operating procedures and safety conditions, 4 Foundation pit
4.1 Select a suitable location at the designated installation point to drive wooden piles and determine the horizontal benchmark of the foundation. 4.2 Dig the foundation pit according to the requirements of the instruction manual. 4.3 When the tower pit is too deep or the soil is soft, use concrete filtration and leveling. 5 On-site filtration foundation confirmation
5. The inner surface of the filling should be flat, the joints should be tight, and the design length and construction quality of the foundation should be verified. When using membrane panels for concrete filtration, it is necessary to prevent the filter soil and other debris. Measures in concrete. 5.2 Before installing the anchor bolts and embedded parts in the foundation plan, the floating lubricant should be removed and the threaded part should be coated with butter. The installation should be firm and accurate. 5.3 The push-type base tower should be assembled with the lowest section of the tower frame, temporarily fixed, aligned, and fired. The system should be checked and corrected at any time.
5.4 The water grade used shall not exceed the provisions of the instruction manual, and the mix ratio shall be in accordance with the requirements of the instruction manual. Approved by the State Machinery Industry Bureau on August 6, 1999 14
2000-01-01 Implementation
JB.T 9740.4-[999
5.5 The cement grade should be determined according to the actual situation on site, and the cement should be mixed with 15%-25% of the test base
5. Expired water should not be used. Core foundation maintenance
6.1 The concrete foundation should be watered for 12 hours after drying (for example, the original foundation surface should be 3 hours in windy weather). The water should be effective enough to keep the surface of the foundation moist. 6.2 The concrete foundation made of ordinary silicate cement and silicate salt should be watered for at least 5 days. In particularly hot areas, the watering maintenance should be extended.
7. Assemble the tower frame according to the tower assembly installation method and precautions provided in the user manual. 7.2 When the tower is under pressure, the hole expansion should be more than 3.4, except for the obvious reasons that the hole needs to be folded when the hole is needed. When the hole exceeds 3, the pressure gas cutting and the protection hole are strictly prohibited after the welding.
7.4 After the tower is assembled, all connections must be tightly controlled. When tightening, the frequency should be selected in groups, and the inspection party should sit in a row. 7.5 The tower frame is assembled. Use an instrument to check whether the tower frame is vertical. The overall inclination shall not exceed 0.3%. 8. Lifting equipment methods and precautions
8.1 Lifting method and selection
8.1.1 Crane: When conditions permit, it can be hoisted by a crane [omitted]. E.2 Single-pole fiber rope lifting method:
B.1.2.1: Single-pole fiber rope lifting method. 1 The tool includes a pulley [pole], fiber rope [rope] group, movable pulley: fixed pulley, human "twist scar", wire rope, etc. bZxz.net
8.1.2.2 The single-pole must have a single rise and stiffness, 8.1.2.3 The total stability of the single pole refers to Figure 1, and the formula (1) is calculated: Hh +h, -(22.5) ..
In the above: H——total length of single pole, m; y——height from the top of the tower frame to the ground; y——total length of the hoisted object, m
In 1.2.4, the rope group of the lifting pole shall not be less than 4 groups. 81.2.5 The nominal lifting capacity of the finger pulley or fixed pulley used shall not be less than the maximum weight of the parts to be hoisted. 3.1.2. The load-bearing capacity shall be selected according to the load of the object to be hoisted. The capstan shall be firmly fixed. 9.2 See general notes
Special 2.1 Bag 8.2.2 When lifting large or long parts, you must test whether the hanging points are firm and correct, and then lift them steadily. 8.2.3 Before lifting large or long parts, you must control the auxiliary rope. 15
Safety rules
JB/T9740.4—1999
Bei 1. Choose rainless, light wind or no wind weather for installation. 9.2 When installing the wind wheel, if the weather changes, stop the installation immediately. 93 People with mental retardation, mental illness, high blood pressure, heart disease and alcohol are not allowed to engage in wind turbine installation work. 94 Workers must wear flexible clothes, wear safety belts and handkerchiefs, and only installers are allowed to transport special, seasonal parts and installation items. They should be carried out with tools such as containers or tied with ropes. They are not allowed to fall alone. 9.6 The lifting leather of the lifting equipment must be tied with knots and checked before starting work every day. 97 When lifting at high altitude, it is forbidden to stand in front of the lifting object. 9.8 All personnel entering the site should wear safety helmets. 99 On-site assistants The staff should be alert, obey the instructions, call, pay close attention to the work of the high-altitude workers, and prohibit the scene from reading the instructions.
10 Trial operation and inspection after installation
10.1 Before the trial operation, check the overall connection and fastening parts of the wind turbine to make sure that it can be started and operated. 10.7 Select non-windy weather and start the wind turbine according to the instructions. 10.3 Check whether the moving parts of the wind turbine are flexible and whether there are any abnormal sounds. 104 Check whether the wind turbine and the matching machinery are running normally, and 10.5 Check whether the manual parking device is reliable. 16
Data that should be changed after assembly
Ⅱ.! Geological data and completion drawings of the foundation pit 11.2 Records of component replacement.
11.3 Installation technical records.
11.4 Trial operation and adjustment records.
11.5 Concealed underground pipelines. Line distribution diagram. JB/T9740.4-1999
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