Selling second-hand 100 square carbon steel condenser price

Selling second-hand 100 square carbon steel condenser priceThe structure of the condenser is relatively simple, compact, and inexpensive, but the outside of the tube cannot be mechanically cleaned. This type of heat exchanger tube bundle is connected to a tube plate, which is welded to both ends of the shell and connected to a top cover. The top cover and shell are equipped with fluid inlet and outlet connections. Usually, a series of baffles perpendicular to the tube bundle are installed outside the tube. At the same time, the connection between the tube and the tube plate and the outer shell is rigid, while the inside and outside of the tube are two different temperature fluids. Therefore, when the temperature difference between the tube wall and the shell wall is large, due to the different thermal expansion of the two, a large temperature difference stress is generated, which can cause the tube to twist or loosen from the tube plate, and even damage the heat exchanger.

In order to overcome temperature difference stress, a temperature difference compensation device is necessary. Generally, when the temperature difference between the pipe wall and the shell wall is more than 50 ℃, for safety reasons, the heat exchanger should have a temperature difference compensation device. But the compensation device (expansion joint) can only be used when the temperature difference between the shell wall and the pipe wall is below 60-70 ℃ and the fluid pressure in the shell side is not high. When the pressure on the shell exceeds 0.6Mpa, due to the excessive thickness of the compensation ring, it is difficult to expand and contract, and the effect of temperature difference compensation is lost. Therefore, other structures should be considered.

Floating head style

Selling second-hand 100 square carbon steel condenser priceA tube plate for the condenserflangeandshellConnected to each other, the other tube plate is not connected to the shell, so that the tube can freely expand and contract when heated or cooled. However, a top cover is connected to this tube plate, called a "floating head", so this type of heat exchanger is calledFloating head heat exchangerThe advantage is that the tube bundle can be pulled out for cleaning; The expansion of the tube bundle is not constrained by the shell, so when the temperature difference between the two heat exchanger media is large, there will be no temperature difference stress caused by the difference in thermal expansion between the tube bundle and the shell. Its disadvantages are complex structure and high cost.

Packing box type

This type of heat exchanger tube bundle can expand freely at one end, with a simpler structure and lower cost than the floating head type. However, there is a possibility of leakage of the medium inside the shell, and volatile, flammable, explosive, and toxic media should not be handled in the shell.

U-shaped tube type

The U-shaped tube heat exchanger has each tube bent into a U-shape and fixed at both ends on the same tube plate. Each tube can freely expand and contract, thus solving the problem of thermal compensation. The tube has at least two passes, the tube bundle can be removed for cleaning, and the tubes can expand freely. Its disadvantages are difficulty in cleaning the inner wall of the pipe, difficulty in replacing the pipe, and fewer pipes arranged on the pipe plate. The advantages are simple structure, light weight, and suitability for high temperature and high pressure conditions.

Liangshan Hongrui Machinery Equipment Co., Ltd. mainly recycles and sells; Used chemical equipment, pharmaceutical equipment, concentration equipment, biological fermentation extraction equipment, food equipment, dairy equipment, drying equipment, separation equipment, starch equipment, feed equipment, oil and fat equipment, stainless steel equipment, etc., mainly including various second-hand reaction vessels, fermentation tanks, dryers, centrifuges, separators, evaporators, storage tanks, pressure filters, condensers, extraction tanks, freeze-drying machines, etc