The work mainly includes:
(1) Measuring the stress, sway, vibration, generator temperature rise and dynamic and static balance of the main components of the unit hydrogenerator;
(2) Calculate the hydraulic characteristics of the turbine, the efficiency of the unit and the leaks of the guide vanes
(3) Perform tests on the dynamic characteristics and regulator statics and the energy balance of the attached rotating machines;
< p>(4) Evaluate the installation, quality of maintenance and operating condition of the hydraulic generator;(5) Complete the technical files for hydraulic turbine tests and prepare for the hydraulic turbine analysis test. data and test reports.
The following types of work are included in this profession:
Hydraulic machine testing operator
What is the role of the guide bearing of a genvertical turbine erator?
The formula for calculating the bearing clearance of the hydraulic generator is as follows. The calculation formula for spinning the vertical turbine generator is the design clearance minus half the net sway. According to the relevant information query, the gap size is related to various factors such as unit size, speed, processing accuracy, installation level, etc. The manufacturer of the unit will have an installation value.
The function of the vertical guide bearing of the turbine generator is to bear the radial mechanical unbalanced force and the electromagnetic unbalanced force of the rotating part of the unit, so that the axis of the unit oscillates within the specified value range.
The main signs of a guide bearing with good performance are:
(1) Sufficient working oil film thickness can be formed;
(2) The tempera tileture should be within the allowable range, generally around 50°C;
(3) The circulating oil circuit is smooth and the cooling effect is good;
(4) The oil level in the oil tank and the bearing clearance meet the design requirements;
(5) The sealing structure is reasonable and does not shed oil
(6) The structure is simple; and easy to install and repair.