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Solid State High Frequency Gem Smelting Equipment

Author:Sifang Sanyi    Date:2013-11-26 18:37

product picture

 

Application Scope                 

The welding of steel tube, stainless steel tube, aluminum tube, copper tube, H-beam and special section tube.

Function Structure

Solid state high frequency welder is mainly applied to high frequency straight seam tube mill line. The high frequency power supply adopts AC-DC-AC frequency-variable structure. The rectifier adopts 3-phase 6-pulse thyristor rectifying, IGBT DC chopping or 3-phase 12-pulse thyristor rectifying. Inverter adopts high voltage large power MOSFET to form full bridge resonant inverter. Inverter output adopts high efficiency ferrite matching transformer to accomplish power synthesis, impedance matching and electric isolation. Resonant tank circuit adopts secondary side series resonance.

The whole set equipment is composed of switchgear rectifying cabinet, inverter output cabinet, circulation soft water cooling system, console and positioning table.

 

   

Technical Features

Perfect structure design

1. Independent design of switchgear rectifying cabinet and inverter output cabinet, connected by soft cable, which is convenient for layout at user’s site.

2.Rectifier selects DC chopping to ensure grid side power coefficient≥0.92 and harmonic content is the relative lowest. Adopt 12-pulse thyristor rectifying to eliminate grid side fifth and seventh harmonic, and grid side harmonic current is the lowest.

3.Power combination of the inverter bridge is accomplished by the way of power unit superposition. Each MOSFET power unit is designed to be 50kW/100kW/150kW and slideway drawer structure, which is convenient for installation and repair.

4.High standard electromagnetism compatibility design, electromagnetism radiation meets national standard.

5.High standard electromagnetism compatibility design, electromagnetism radiation meets national standard.

 

All-digital control system

1.3-D rectifier adopts high cost performance MCU controlling to realize precise synchronism trigger with high control precision and small grid-side non characteristic harmonic.

2. Resonant inverter adopts CPLD to form full-digital control system that is characterized by their automatic constant angle, high phase-lock precise and wide scope of phase-lock.

3.The welder has electronic automatic load matching function with good load adaptability, high electrical efficiency and high power coefficient.

4.The welder has perfect protection function with reliable working and low failure rate.

 

HMI and fault diagnosis system

1.Adopt PLC and touch screen to form perfect HMI system.

2.Realize integrated automatic control of welder system.

3.Fault display and diagnosis system

 

Main Technical Parameter

model

AC input

Rated DC voltage

Rated DC current

Frequency scope

Electrical

efficiency

Working status

GGP60-0.8-H

3AC380V

50/60Hz

450V

130A

650~

800 kHz

≥85%

continuous

GGP100-0.45-H

3AC380V

50/60Hz

450V

220A

400~

450 kHz

≥85%

continuous

GGP150-0.4-H

3AC380V

50/60Hz

450V

330A

350~

400 kHz

≥85%

continuous

GGP200-0.35-H

3AC380V

50/60Hz

450V

440A

300~

350 kHz

≥85%

continuous

GGP250-0.3-H

3AC380V

50/60Hz

450V

550A

250~

300 kHz

≥85%

continuous

GGP300-0.3-H

3AC380V

50/60Hz

450V

660A

250~

300 kHz

≥85%

continuous

GGP400-0.3-H

3AC380V

50/60Hz

450V

880A

250~

300 kHz

≥85%

continuous

GGP500-0.2-H

3AC380V

50/60Hz

450V

1100A

150~

200 kHz

≥85%

continuous

GGP600-0.2H

3AC380V

50/60Hz

450V

1300A

150~

200 kHz

≥85%

continuous

GGP700-0.2-H

3AC380V

50/60Hz

450V

1500A

150~

200 kHz

≥85%

continuous

GGP800-0.2-H

3AC380V

50/60Hz

450V

1800A

150~

200 kHz

≥85%

continuous

GGP1000-0.2-H

3AC380V

50/60Hz

450V

2200A

150~

200 kHz

≥85%

continuous

GGP1200-0.2-H

3AC380V

50/60Hz

450V

2700A

150~

200 kHz

≥85%

continuous

GGP1400-0.15-H

3AC380V

50/60Hz

450V

3100A

100~

150 kHz

≥85%

continuous

GGP1600-0.15H

3AC380V

50/60Hz

450V

3600A

100~

150 kHz

≥85%

continuous

GGP1800-0.15-H

3AC380V

50/60Hz

450V

4000A

100~

150 kHz

≥85%

continuous

*  Conventional design. Can be customized according to user’s grid, technics requirement and working frequency.

 equipment selection

model

 tube specification

shape

Welding speed

Welding mode

Cooling mode

remarks

GGP60-0.8-H

O.D.φ6~φ20mm

wall thickness0.15~0.5mm

Round tube

Rectangular tube

Special section tube

60~

100m/min

Induction welding

Water-water

Air-water

Steel pipe

Copper pipe

Aluminum pipe

Stainless steel

GGP100-0.45-H

管径O.D.φ16~φ45mm

壁厚wall thickness0.6~1.5mm

 

Round tube

 

Rectangular tube

 

Special section tube

60~

100m/min

Induction welding

 

Water-water

 

Air-water

 

Steel pipe

 

Aluminum pipe

 

Stainless steel

GGP150-0.4-H

O.D.φ20~φ60mm

wall thickness0.8~2.0mm

 

Round tube

 

Rectangular tube

 

Special section tube

60~

100m/min

Induction welding

 

Water-water

 

Air-water

 

Steel pipe

 

Aluminum pipe

GGP200-0.35-H

O.D.φ45~φ76mm

wall thickness1.5~3.25mm

 

 

Round tube

 

Rectangular tube

 

Special section tube

60~

100m/min

Induction welding

 

Water-water

 

Air-water

 

Steel pipe

GGP250-0.3-H

O.D.φ45~φ89mm

wall thickness1.5~4.0mm


Round tube


Rectangular tube


Special section tube

60~

100m/min

Induction welding


Water-water


Air-water


Steel pipe

GGP300-0.3-H

O.D.φ50~φ114mm

方管square pipe200×200mm

wall thickness2.5~5.0mm


Round tube


Rectangular tube


Special section tube

Induction welding:

≥40m/min


contact welding:

≥50m/min

Induction welding


contact welding


Water-water


Air-water

 

Steel pipe

GGP400-0.3-H

O.D.φ114~φ156mm

square pipe200×200mm

wall thickness4.0~8.0mm

 

Round tube

 

Rectangular tube

 

Special section tube

 

Induction welding:

≥25m/min

 

contact welding:

≥30m/min

Induction welding

 

contact welding

 

Water-water

 

Air-water

 

Steel pipe

GGP500-0.2-H

O.D.φ165~φ219mm

square pipe 200×200mm~300×300mm

wall thickness4.0~12.0mm


Round tube


Rectangular tube


Special section tube


Induction welding:

≥ 14m/min


contact welding:

≥ 18m/min

Induction welding


contact welding


Water-water


Air-water

 

Steel pipe

GGP600-0.2-H

O.D.φ219~φ273mm

square pipe200×200mm~300×300mm

wall thickness6.0~12.0mm


Round tube


Rectangular tube


Special section tube


Induction welding:

≥ 15m/min


contact welding:

≥ 18m/min

 

Induction welding


contact welding


Water-water


Air-water


Steel pipe

GGP800-0.3-H

O.D.φ325~φ508mm

square pipe300×300mm~400×400mm

wall thickness6.0~16.0mm


Round tube


Rectangular tube


Special section tube


Induction welding:

≥ 7m/min


contact welding:

≥ 9m/min

Induction welding


contact welding


Water-water


Air-water

 

Steel pipe

GGP1000-0.2-H

O.D.φ325~φ610mm

square pipe300×300mm~500×500mm

wall thickness4.0~16.0mm


Round tube


Square tube


rectangular tube


Induction welding:

≥7m/min


contact welding:

≥ 9m/min

Induction welding


contact welding


Water-water


Air-water


Steel pipe

GGP1200-0.2-H

O.D.φ325~φ610mm

square pipe300×300mm~500×500mm

wall thickness4.0~16.0mm


Round tube


Square tube


rectangular tube


Induction welding:

≥8m/min


contact welding:

≥ 10m/mi

Induction welding


contact welding


Water-water


Air-water

 

Steel pipe

GGP1400-0.15-H

O.D.φ325~φ610mm

square pipe300×300mm~500×500mm

wall thickness4.0~16.0mm


Round tube


Square tube


rectangular tube


Induction welding:

≥10m/min


contact welding:

≥ 13m/min

Induction welding


contact welding


Water-water


Air-water


Steel pipe

GGP1600-0.15-H

O.D.φ325~φ610mm

square pipe300×300mm~500×500mm

wall thickness4.0~20.0mm


Round tube


Square tube

 

rectangular tube


Induction welding:

≥7m/min


contact welding:

≥ 10m/min

Induction welding


contact welding


Water-water


Air-water

 

Steel pipe

GGP1800-0.15-H

O.D.φ325~φ610mm

square pipe300×300mm~500×500mm

wall thickness4.0~20.0mm


Round tube


Square tube


rectangular tube


Induction welding:

≥7m/min


contact welding:

≥ 10m/min

Induction welding


contact welding


Water-water


Air-water


Steel pipe

The welding speed is based on the condition of max O.D. and max wall thickness.

*  General design, can be designed as per user’s technics.

 

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