ShangHai Rich M & E Manufacturing Co., Ltd.

ShangHai Rich M & E Manufacturing Co., Ltd. Outstanding supplier in the electrical field.

Collector ring device for 700MW generatorCollector ring is the core component of generator self-parallel static excitati...
05/09/2024

Collector ring device for 700MW generator

Collector ring is the core component of generator self-parallel static excitation, and its reliability is crucial to the safe and stable operation of the whole generator set.

In recent years, more and more thermal power units take up the functions of grid peak shifting, frequency regulation, voltage regulation and standby, which has a greater impact on the reliability of the collector ring device.

The collector ring device is a structure that conducts the excitation current into the generator rotor and thus forms the excitation circuit by means of brush holders, brushes, slip rings, conductive screws and other structures.



https://www.shhairich.com/collector-ring-device-for-700mw-generator

60MW collector ring integrated monitoring deviceThe integrated collector ring monitoring device replaces the relatively ...
05/09/2024

60MW collector ring integrated monitoring device

The integrated collector ring monitoring device replaces the relatively traditional means of collector ring monitoring in various power plants at home and abroad, and changes the shortcomings of manual periodic intermittent measurement. It meets the requirements of real-time, online, continuous monitoring and realises early warning of faults and timely treatment and elimination of safety hazards. It meets the requirements of real-time, online and continuous monitoring, realises early warning of faults, and deals with and removes potential safety hazards in a timely manner. At the same time, through the long-term monitoring of the temperature of the contact surface of the sliding ring and carbon brush, through the analysis of a large amount of data, to develop a set of By analysing a large amount of data, a set of critical value evaluation standards for different models can be formulated, which will provide powerful support for the subsequent design of new products and improvement of service products.



https://www.shhairich.com/60mw-collector-ring-integrated-monitoring-device

31/07/2024

The necessary test before the cooler leaves the factory: water pressure test

The water pressure test of the cooler is a process that must be carried out before the product leaves the factory. We will give him a water pressure, such as 1.6MPa, 2.5MPa, etc. (more than the pressure of normal use), and test for a period of time to ensure that there will be no water leakage inside the cooler



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31/07/2024

Collector ring device component - fan



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The collector ring fan is placed in the middle of the two slip rings. It has two working modes of air extraction and air blowing. When the collector ring is running, the other cooled by the cooler will be blown to the slip ring and carbon brush to achieve the cooling effect.

31/07/2024

Seat type bearing main parts - bearing bush positioning groove processing



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The bearing bush is the part of the connection between the plain bearing and the journal, which can be divided into circular bearing bush, oval bearing bush and tilting bearing bush, etc. The inner wall of the bearing bush is cast with babbitt alloy to ensure no damage to the journal after contact with the journal. In the video, the positioning slot of the circular bearing bush is being processed, which is convenient for subsequent bearing installation.

31/07/2024

Collector ring device parts - slip-ring spiral groove processing



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The slip ring is an important part of the collector ring device. By contacting with the carbon brush, the exciting current generated by the excitation system is transferred to the generator rotor to form a magnetic field. The use of wear resistant materials, prolong the service life, the spiral groove on the slip ring is a means of heat dissipation of the slip ring, with the intermediate fan, enhance the air convection, to reduce the temperature of the slip ring and carbon brush, so that it is kept in a suitable range.

31/07/2024

Sealing tile support drain hole processing



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The sealing shingle is an important part of the generator. It is installed in the steam end and the exciting block bearing, and the oil flow between the hydrogen side and the air side of the shaft journal and the ring sealing shingle prevents the hydrogen from escaping inside the generator. The video shows the processing of the oil drain hole of the sealing tile, which is connected with the central ring oil circuit and then forms the sealing oil circuit.

31/07/2024

Seal bearing Haugh surface grinding



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The sealing shingle is an important part of the generator. It is installed in the steam end and the exciting block bearing, and the oil flow between the hydrogen side and the air side of the shaft journal and the ring sealing shingle prevents the hydrogen from escaping inside the generator. In the video, for the sealing Wahaf surface grinding, we evenly spread the grinding paste on the sealing Wahaf surface, and manually grind it, so that the contact area of the upper and lower hahaf surface reaches more than 80%.

Generator internal water treatment equipment, can effectively reduce the cooling water corrosion of copper wirecontact：g...
23/02/2024

Generator internal water treatment equipment, can effectively reduce the cooling water corrosion of copper wire
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