1. Product description
The heat exchanger designed by our company belongs to the titanium steel composite plate heat exchanger. The titanium material only bears the medium corrosion, and the medium pressure is borne by the base material. Titanium steel clad metal heat exchanger tubesheet can be used in a wide range of temperatures and pressures, and can also be used in situations where the vacuum is applied or the equipment internals need to be fixed in the lining and other local stress conditions are bad. The heat exchanger designed by our company is designed at -0.1MPa according to the user's requirements, so we consider the cost requirements when selecting materials, and choose the tube box short joint structure of titanium steel composite plate. The heat exchanger designed by our company is a cooler. The pipe side medium is ammonia vapor, and the shell side medium is cooling water. Therefore, Q345R is selected as the shell side cylinder material, and titanium steel composite plate structure is selected as the pipe box short joint and head material.
2. Product Features
Titanium steel clad metal heat exchanger tubesheet
Design conditions | ||
Item | shell side | tube side |
medium | cooling water | Steamed ammonia gas |
operating temperature | 33/45°C | 70/56 °C |
（Input/out）°C | ||
working pressure MPa | 0.3 | -0.013 |
Design Temperature °C | 80 | 90 |
Design Pressure MPa | 0.6 | -0.1 |
corrosion allowance mm | 1 | 0 |
number of passes | 1 | 1 |
3. Application
The application of titanium steel clad metal heat exchanger tubesheet is more and more extensive. The structure design of titanium steel clad plate heat exchanger should be as simple as possible. The design of titanium steel clad plate heat exchanger shall maintain the continuity of structure and smooth transition of welded joints, and avoid stress concentration as far as possible. The heat exchanger designed by our company is reasonable, simple, and easy to manufacture. The heat exchanger has been successfully applied in production. The practice shows that the heat exchanger works well at the user's site.
4. FAQ
Application and present situation of explosive welding processing technology
Explosive welding is to use explosive detonation as energy, The method of coating metal plates with different properties on the surface of the selected metal plates. The bottom layer is called the base plate, The upper cladding is called cladding. generally speaking ‚ Use plates with good corrosion resistance or heat resistance and special properties as cladding plates ‚ And the thickness is much thinner than that of the substrate. Multi-metal explosive welding ‚ It is a special explosive used for welding, one explosion, one metal system ‚ After multiple and multiple forms of transmission, absorption, conversion, and distribution of chemical energy of explosives ‚ Forming a thin layer on the metal interface to be bonded with plastic deformation, melting and diffusion ‚ And welding transition zone with waveform characteristics ‚ This is a new metal welding process and joining technology, which will result in strong solid bonding. in other words ‚ Metal explosive welding is a new process and technology of pressure welding, fusion welding, and diffusion welding "three in one" metal welding with explosive as energy source.
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