Titanium heat exchanger is a new type of high-efficiency heat exchanger composed of a series of corrugated metal sheets. Thin rectangular channels are formed between various plates to exchange heat energy through half pieces. Compared with the general shell and tube heat exchanger, its heat transfer coefficient is much higher under the same flow resistance and pump power consumption, and there is a trend to replace the shell and tube heat exchanger in the applicable scale. The materials commonly used in the titanium plate heat exchanger and heat exchanger industry mainly include austenitic stainless steel, titanium and titanium alloy, nickel and nickel alloy and other cold-rolled sheets. Industrial pure titanium 127 is used for plate heat exchanger, industrial pure titanium 276 and ti-0.3mo-0.8ni345 are used for plate heat exchanger made of TA1 titanium plate for tubular heat exchanger. Compared with tubular heat exchanger, it has many advantages and has strong competitiveness in the market. It is mainly used in chemical industry, petroleum, ships Heat exchange system such as seawater desalination.
Plate heat exchanger has the following unique features in design:
(1) high efficiency and energy saving: its heat exchange coefficient is 3000 ~ 4500 kcal / m2? ℃? h. The thermal efficiency is 3 ~ 5 times higher than that of shell and tube heat exchanger.
(2) compact and close: the plates of the plate heat exchanger are precisely arranged. What are the characteristics of the plate pure titanium mirror frame compared with other heat exchanger types? The floor area and space of the heat exchanger are less, and the area of the plate heat exchanger with the same heat exchange energy is only 1 / 5 of that of the shell and tube heat exchanger.
(3) easy cleaning and convenient disassembly and assembly: the plate heat exchanger clamps the clamping plate by clamping bolts, so it is convenient to disassemble and assemble. It can be opened and cleaned at any time. At the same time, because the plate surface is smooth and smooth, the turbulence is deep and heavy, it is not easy to scale.
(4) there is no liquid leakage. The sealing groove of the plate heat exchanger is provided with a liquid discharge channel. Various media will not collude. Even if there is leakage, the media will always be discharged outward.
(5) long service life: the plate heat exchanger is pressed with stainless steel or titanium alloy plates, which can resist various corrosive media. The rubber pad can be changed at will, and it is convenient for disassembly and maintenance.
(6) strong adaptability: the plate of plate heat exchanger is a self-supporting element, which can be increased or decreased as required, and the situation is diverse; It can be applied to the requirements of various different processes.
Basic structure of titanium plate heat exchanger: titanium plate heat exchanger is mainly composed of frame and titanium plate 2. The plate is formed by pressing thin plates made of various materials with different production models to form different corrugations, and corner holes are opened on the four corners of the plate. The periphery and corner holes of the plate are sealed with rubber (15260, - 775.00, - 4.83%) gaskets. The frame is composed of fixed pressing plate, activity pressing plate The plate heat exchanger is composed of upper and lower guide rods and clamping bolts. The plates are installed in the middle of the fixed compression plate and the activity compression plate in the form of superposition, and then clamped with clamping bolts.
