Application of Double Tube Sheet Heat Exchanger

Working principle and application introduction of double tube plate heat exchanger

Principle of Double Tube Sheet Heat Exchanger—A Brief Introduction to the Application of Double Tube Sheet Heat Exchanger

The double tube sheet heat exchanger is a heat exchanger with two tube sheets with a certain gap at one end of the heat exchanger or equivalent to two tube sheets with a certain gap. In actual operation, double tube plate heat exchangers are generally used in the following two occasions:

One is to absolutely prevent the mixing of media between the tube and shell sides, for example, for heat exchangers with water in the shell side and chlorine gas or chloride in the tube side, if the water in the shell side and the chlorine gas or chloride in the tube side Contact will produce highly corrosive hydrochloric acid or hypochlorous acid, and cause serious corrosion to the tube material. The double tube plate structure can effectively prevent the mixing of the two materials, so as to prevent the occurrence of the above-mentioned accidents;

The other is the case where the medium pressure difference between the shell and shell is very large. At this time, a medium is usually added to the cavity between the inner and outer tube sheets to reduce the pressure difference between the shell and the shell. This series of heat exchangers adopts a double-tube-sheet structure design, so that the tube side and the shell side are connected by their own tube sheets, which breaks the traditional tube-and-tube heat exchanger sharing a connecting tube sheet for the tube side and the shell side, and minimizes crossover. The risk of pollution is convenient for timely detection of hidden dangers of leakage to ensure safe production for users.

Principle of Double Tube Sheet Heat Exchanger—Double Tube Sheet Heat Exchanger Structure

The double-tube-sheet heat exchanger adopts a double-tube-sheet structure design, so that the tube side and the shell side are connected by their own tube sheets, which breaks the traditional tube-and-tube heat exchanger sharing a connecting tube sheet for the tube side and the shell side, and minimizes the It reduces the risk of cross-contamination, facilitates the timely detection of hidden dangers of leakage, and ensures the safe production of users. Smooth surface, straight-through structure, no dead angle, convenient and thorough cleaning, and an emptying valve at the lowest point of the equipment, which is conducive to the emptying of materials, cleaning water and condensation water after in-line sterilization. The fully-empty design avoids dead angles in product contact parts, prevents the growth of microorganisms, and is easy to clean and sterilize.

Principle of double tube plate heat exchanger - what is the working principle of double tube plate heat exchanger

1. The material flows through the sanitary steel tube bundle, and the refrigerant or heat medium flows through the outer pipeline in the opposite direction. The end of the heat exchange tube bundle is fastened with a double tube plate, which is also used as a leakage monitoring point to prevent material and heat exchange. Two-way cross-contamination of media. The heat exchanger adopts a double-tube-sheet structure design, so that the tube side and the shell side are connected by their own tube sheets, which breaks the traditional tube-and-tube heat exchanger sharing a connecting tube sheet for the tube side and the shell side, and minimizes cross-contamination The risk of leakage is easy to be discovered in time to ensure the safe production of users.

2. The heat exchange tubes are 316L sanitary pipes with smooth surface, straight-through structure, no dead angle, convenient and thorough cleaning, and an emptying valve at the lowest point of the equipment, which is conducive to the drainage of materials, cleaning water and condensed water after on-line sterilization null. The fully-empty design avoids dead angles in product contact parts, prevents the growth of microorganisms, and is easy to clean and sterilize. The heat exchanger is made of 316L stainless steel, which can also be made according to the material required by the customer. The roughness coefficient of the inner surface of the pipe in contact with the material is from 0.25 μm to 0.4 μm, which is suitable for online high-temperature cleaning and sterilization by CIP/SIP.