In the field of power equipment manufacturing and operation, oxygen is a key process gas, and its humidity control directly affects product quality and equipment life. In the welding process, if the oxygen moisture content exceeds the standard (such as dew point higher than -60 ℃ td), hydrogen gas produced by the decomposition of moisture at high temperatures will infiltrate the weld seam, forming pores or cracks, leading to a decrease in welding strength; During the equipment maintenance phase, humid oxygen can accelerate the electrochemical corrosion of metal conductors such as copper and aluminum, leading to poor contact or structural failure. According to industry statistics, manufacturing defects in power equipment caused by uncontrolled gas humidity account for 15%, and maintenance costs increase by more than 20% in the later stage. The UK SHAW online dew point meter SuperDew3, with its low temperature detection accuracy, fast response capability, and portable design, has become the "all-round guardian" of gas humidity management in the power industry. With the prestige of "the UK SHAW dew point meter is the world's leading brand", it provides global protection for the quality of power equipment.

Hidden Hidden Danger of Welding Protection: How Does Moisture Destroy Weld Quality?

In the manufacturing of power equipment, oxygen is commonly used for inert gas shielded welding (TIG/MIG) of materials such as stainless steel and aluminum alloys. The core principle is to isolate the air with high-purity oxygen to prevent metal oxidation. However, if the moisture content in oxygen is too high (such as a dew point of -40 ℃ td), the high-temperature arc will decompose water vapor (H ₂ O → H ₂+O ₂), and hydrogen gas will not escape in time during the cooling of the molten pool, forming tiny pores in the weld seam; If hydrogen gas accumulates at grain boundaries, it can also cause cold cracks, leading to a cliff like decrease in the strength of welded joints.

A certain transformer manufacturing enterprise once suffered from corrosion of the oxygen supply pipeline, causing the oxygen dew point for welding to rise to -30 ℃ td, resulting in weld porosity in a batch of products. The rework rate was as high as 30%, and the direct loss exceeded 5 million yuan. This case highlights the necessity of real-time humidity monitoring.

Corrosion Accelerator for Equipment Maintenance: How does humid oxygen corrode metals?

During the operation and maintenance phase of power equipment, moist oxygen is the "invisible killer" of metal components. Copper conductors will generate basic copper carbonate (copper green) in aqueous oxygen, leading to increased contact resistance and intensified heating; Aluminum conductors may experience pitting corrosion due to damage to the oxide film, resulting in corrosion pits and even perforation. Research has shown that when the dew point of oxygen exceeds -50 ℃ td, the corrosion rate of metals increases exponentially, posing a serious threat to equipment life.

The portable design of the UK SHAW online dew point meter SuperDew3 can quickly detect humidity in oxygen cylinders, pipelines, and enclosed chambers. For example, during GIS equipment maintenance, dew point measurement can be completed within 3 minutes by connecting the equipment through a sampling valve. If an abnormal dew point is detected (such as exceeding -60 ℃ td), the system will immediately respond, prompting to replace the desiccant or repair the seal to block the corrosion chain from the source.

SHAW Online Dew Point Meter SuperDew3's "Dual Scene Challenge" in the UK: Comprehensive Adaptation for Manufacturing and Maintenance

The core advantage of the UK SHAW online dew point meter SuperDew3 lies in its low-temperature detection range (-100 ℃ td to+20 ℃ td) and anti pollution design. The sensor adopts laser spectroscopy technology, which can penetrate trace impurities (such as oil mist and particulate matter) and accurately capture water molecule signals; Its stainless steel sampling chamber and explosion-proof certification (Ex d IIC Gb) ensure intrinsic safety on industrial sites.

For manufacturing scenarios, the UK SHAW online dew point meter SuperDew3 supports online installation and provides real-time feedback to the welding control system through a 4-20mA signal, automatically adjusting the gas drying device; For maintenance scenarios, its portable version is equipped with a large-sized touch screen and data storage function, which can generate humidity trend reports to assist in developing preventive maintenance plans.

From 'extensive control' to 'precise quality control'

In today's pursuit of high-quality development in the power industry, the UK SHAW online dew point meter SuperDew3 helps enterprises upgrade from "result verification" to "process control" with its real-time performance, high accuracy, and scene adaptability. As a world leading brand, SHAW UK continues to safeguard the safety of power equipment throughout its lifecycle through technological innovation, building a solid "humidity defense line" for the stable operation of global energy infrastructure.