How can heat exchanger manufacturers improve the corrosion resistance of titanium heat exchanger frames?
Release time:
2021-11-22 11:13
Source:
Although titanium heat exchangers rely on titanium heat exchange plates for heat exchange, problems with other components will also affect the entire body. Among them, the frame plays a very important role in the entire titanium heat exchanger. It is not only used for support and fixation, but also for compressing gaskets to ensure sealing. Therefore, its quality directly affects the overall performance of the titanium heat exchanger. Today, let's talk about how heat exchanger manufacturers can improve the corrosion resistance of titanium heat exchanger frames.
Unless the customer specifies the use of stainless steel, usually, titanium heat exchangers or stainless steel heat exchangers from heat exchanger manufacturers only mean that the heat exchange plates are made of titanium or stainless steel.
Titanium heat exchangers are mainly used in humid equipment rooms. The frame, upper and lower guide rods, and columns of the heat exchanger are mostly made of carbon steel to ensure the corrosion resistance of the titanium heat exchanger frame and extend the service life of the equipment.
The environment of the heat exchange station is mostly dark, humid, and poorly ventilated. Especially during shutdown, when the ventilation equipment is shut down, carbon steel equipment will rust and corrode.
The frame, guide rods, screws, columns, and other accessories of the titanium heat exchanger are mostly made of carbon steel, which is more susceptible to corrosion than stainless steel plates. Due to frame corrosion, many pieces of equipment will be scrapped prematurely. What measures should be taken? How can heat exchanger manufacturers ensure the corrosion resistance of the plate heat exchanger frame? This is the main means of extending the service life of the heat exchanger.
Measures taken by heat exchanger manufacturers:
Except for the zinc-plated screws and some guide rods of the titanium heat exchanger frame, most of the other accessories are painted for corrosion protection. In order to improve the corrosion resistance, carbon steel parts need to be derusted with a shot blasting machine to reach ST3 level, exposing the original color of the metal, and using a thinner to remove metal powder to prevent poor adhesion of metal powder, and spray rust-proof paint within 2 hours, immediately spraying rust-proof paint in a short time to prevent floating rust.
Spray two coats of rust-proof paint and two coats of topcoat. When spraying the next layer of paint, ensure that the previous layer of paint is dry. Do not rush and spray multiple times continuously. The thickness of each paint film should meet the specified requirements.
The above are the rust and corrosion prevention measures often taken by heat exchanger manufacturers. Users can use them flexibly according to the actual situation of their working conditions. Even better corrosion and rust prevention measures would be even better.
In heating systems, we can find diagrams of plate heat exchangers. With the continuous expansion of the heating area, the increasing number of users, and the increasing demand for equipment, many people encounter a problem when choosing heat exchange equipment, namely how to choose a manufacturer of heating plate heat exchangers? In fact, the characteristics of each family are different, and each family has its own advantages.
How to choose a manufacturer of heating plate heat exchangers? This also depends on whether the materials used in equipment production are scientific. Suitable for different working conditions. The materials selected are also different. For example, under high-temperature conditions, it is necessary to choose high-temperature resistant materials. Corrosive media need to choose corrosion-resistant materials, etc., which requires manufacturers to have a variety of different materials to choose from for various operating conditions and to be able to scientifically select and design equipment that meets customer needs.
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