Bolt heating rod manufacturer customization
Dari Electric recommends for you
To meet the needs of loading and unloading bolts in high, medium, and low pressure cylinders of steam turbines and improve work efficiency, our company has developed and produced two major series with more than 10 varieties of bolt heating devices. The DJ22-53 low-voltage heating device for steam turbine bolts has been used by many power plants. This device is safe, reliable, easy to operate, has a long service life, and is highly favored by users.
The DJ22-53 DC adjustable bolt heating control cabinet is used in conjunction with the DC bolt heater. It has the advantages of stable and adjustable output DC voltage (0~220V adjustable), multiple output channels (up to 12 loads), high output power, and safety and reliability.
2. Usage Precautions
1. The control cabinet shell should have a reliable ground connection.
2. The phase and neutral wires between the bolt heater plug and the cabinet socket must be connected correctly, and cross-connection is strictly prohibited.
3. When installing or removing the bolt heater, the power switch must be disconnected. The voltage adjustment and indication of the DJ22-53 series control cabinet should be at the minimum position; the DJ22-53 low-voltage control cabinet is strictly prohibited from shifting voltage under load.
4. When connecting loads, pay attention to the balance between the three phases.
5. If the connector is damaged, it must be replaced with the original specification.
6. The special bolt heater needs to be manufactured according to the specific geometric dimensions of the bolt. When ordering, you need to provide: a. bolt outer diameter; b. bolt outer diameter; c. total bolt length; d. nut length; e. the matching heating control cabinet situation.
3. Model specifications and parameters are as specified in the table below:
Approved by the Ministry of Machinery and Electronics Industry of the People's Republic of China on 1988-07-20, implemented on 1989-07-01
Note 1: The electric heater parameters listed in this table apply to bolts with a center hole diameter of d=22.6±0.2mm. For electric heaters that do not conform to the center hole diameter and specification parameters listed in this table, the user and manufacturer shall negotiate.
2. The surface power density of the electric heaters listed in this table is 8-11W/cm².
Note: The above information and technical parameters are compiled and released by Yangzhou Dari Electric Co., Ltd.
