High pressure boiler tube quenching + tempering production line-songdao induction heating equipment manufacturer
High pressure boiler tube quenching + tempering production line
Author:admin time:2019-08-07 11:19

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, this apparatus is mainly used for quenching oil casing, high pressure boiler tubes and other products tempering. The process flow is divided into: quenching process and normalizing process.

, the equipment quenching, normalizing total power is 5000kw , tempering power is 3500 kw

, production capacity

  Normalizing: full power is 5000 kw , the output is not less than 12.06 tons

  . Continuous on-line: quenching tempering the full power of 5000 kw + kw 3500 running yield of not less than 12.06 Dun

  . Annual output of 80000 tons

, technical parameters:

. Steel pipe parameters before quenching tempering :

Steel pipe outer diameter range: (φ 73.02 ~ φ 159 ) outer thickening (outer diameter φ 73.02 ~ φ 88.9 ) two kinds , the wall thickness is 16mm ,

The length of the steel pipe is 5.8 12.5m , the wall thickness tolerance of the steel pipe is ± 8% , the maximum weight of the single pipe is 0.520 tons , the maximum weight of the single pipe is: 43.3kg quenching tempering production

. Quenching tempering equipment performance and technical requirements:

1. Realize the functions of feeding, conveying, heating, quenching, tempering and cooling of multi-standard seamless steel tubes.

, steel tube normalizing, quenching heating the highest temperature 1100 °C, generally 850 °C ~ 980 °C

, tempering temperature: 550 °C ~ 720 °C

, the heating temperature of the steel pipe is uniform, the maximum temperature difference between different parts of the steel pipe: quenching ± 10 °C, tempering ± °C, radial ± °C

standard.

, equipment parameters and technical requirements:

, quenching, normalizing power is 5000 kw , frequency is 1000 1500Hz

, tempering power is 3500 kw , frequency is 1000 1500Hz

, inlet water temperature: 35 °C

, the water temperature is less than 55 °C

, water pressure 0.2 0.3MPa

, air pressure 0.4M p a

D, grid requirements:

a) 5000 kw + 3500 kw medium frequency power supply, the power distribution capacity is not less than 10200 kvA

b) The grid voltage should be sine wave harmonic distortion is not more than 5%

c) The imbalance between three-phase voltages should be less than ± 5%

d) The continuous fluctuation of the grid voltage does not exceed ± 10% , and the grid frequency does not change by more than ± (ie should be between 49-51HZ )

e) IF power incoming cable adopts three-phase four-wire system

f) Incoming cable specifications: 1250 kw 180mm 2 × (copper core) 1000 kw 160mm 2 × (copper core)

h) IF power input voltage: 380V

) Auxiliary equipment power supply ≤ 366 kw

) Auxiliary equipment power supply voltage 380V ± 10%


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