As an important part of heat exchange equipment, condenser is widely used in many industries such as petrochemical, electric power, refrigeration, etc. Its core function is to condense gas or steam into liquid through cooling medium, so as to realize heat transfer and recovery. In the manufacturing process of condenser, tube to tubesheet orbital welding is one of the key processes, which directly affects the quality and performance of the equipment.
 

Working principle of automatic tube sheet welding machine

Tube to tubesheet orbital welding machine is an automated equipment dedicated to tube sheet welding, usually composed of welding power supply, control system, robotic arm and welding head. Its working principle is to accurately locate the welding head to the connection between the tube sheet and the tube through a high-precision control system, and complete the welding according to the preset welding parameters. The automatic tube sheet welding machine supports a variety of welding methods, such as TIG (tungsten inert gas shielded welding), MIG (metal inert gas shielded welding) and laser welding, etc., which can adapt to different materials and process requirements.

In condenser manufacturing, tube to tubesheet orbital welding machine is mainly used to seal and weld tubes to tube sheets. Since the working environment of the condenser usually involves high temperature, high pressure and corrosive media, the requirements for welding quality are extremely high. The automatic tube sheet welder ensures the strength, sealing and corrosion resistance of the welded joint by precisely controlling the welding current, voltage and speed.
 

Advantages of the application of automatic tube to tubesheet orbital welding machines in condensers

1. Improve welding efficiency

In the manufacture of large condensers, the automatic tube sheet welder can complete the welding of hundreds of pipe joints in a few hours, while manual welding may take several days.

2. Ensure welding quality

The automatic tube sheet welder ensures the consistency of each welded joint through a high-precision control system. Its welding parameters can be optimized according to material properties and process requirements to avoid welding defects caused by human factors, such as pores, cracks and unfusion. This is especially important for equipment such as condensers that have extremely high requirements for sealing.

3. Adapt to complex working conditions

The automatic tube sheet welder supports a variety of welding processes and materials such as carbon steel, stainless steel, titanium alloy, etc., and can adapt to different working conditions. For example, in the manufacture of nuclear power plant condensers, automatic tube sheet welders can efficiently complete the welding of titanium alloy tube sheets, ensuring the reliability of equipment in high temperature, high pressure and radiation environments.

4. Reduce production costs

Although the initial investment of automatic tube sheet welders is high, their long-term economic benefits are significant. By reducing labor costs, reducing rework rates and increasing equipment life, automatic tube to tubesheet orbital welding can effectively reduce the manufacturing cost of condensers. In addition, its efficient welding capabilities also help shorten delivery cycles and enhance the market competitiveness of enterprises.

5. Improve safety

The automatic tube sheet welder adopts a closed welding environment, reducing the risk of welders being exposed to high temperatures, strong light and harmful gases.

Actual application cases

In the condenser manufacturing project of a large petrochemical enterprise, the automatic tube sheet welder was used to weld stainless steel tube sheets and copper-nickel alloy tubes. By optimizing welding parameters and using TIG welding technology, the automatic tube sheet welder completed the welding of nearly a thousand pipe joints in two weeks, and all welded joints passed non-destructive testing and pressure testing. Compared with traditional manual welding, the project saved about 30% of production time and significantly reduced the rework rate.