heat exchanger tube bundle
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Why is there a sleeve (movable) at the outermost corner of the heat exchanger tube bundle? Why is there a small triangular notch on the baffle?
What kind of heat exchanger are you talking about? Mine are not like this. It may also be a casing to prevent the heat exchange tube from being damaged by erosion.
It's just an ordinary liquefied gas water cooler. It has just come under extreme control. I don't understand it, so I asked this question. 2# jstz288
The small triangular notch on the baffle is designed to drain accumulated fluid. Reference GB151-1999 [When the shell side of the horizontal heat exchanger is a single-phase clean fluid, the baffle notches should be arranged horizontally up and down. If the gas contains a small amount of liquid, a liquid port should be opened at the lowest part of the baffle with the notch facing upward. ； If the liquid contains a small amount of gas, a vent should be opened at the highest point of the baffle with the gap facing downward. When the shell-side medium of horizontal heat exchangers, condensers and reboilers is a coexistence of gas and liquid phases or the liquid contains solid materials, the baffle gaps should be arranged vertically left and right, and the liquid port should be opened at the lowest point of the baffle. 】
You seem to be talking about tie rods and distance tubes. The triangular port on the top of the baffle is for ventilation, and the triangular port on the bottom is for liquid.
I feel like what you said above is correct.
6# chenning302 Is the movement to prevent thermal expansion and contraction?
Is the casing a fixed distance pipe? Also, the triangular port is an overflow port. What I said above is right. The top is for ventilation and the bottom is for liquid.
The movable casing you are talking about should be the fixed distance pipe. This kind of tubes are arranged axially symmetrically, and every few rows of heat exchange tubes will appear at both ends of the tube row. There is no doubt that the triangular mouth is the overflow port used for draining accumulated fluids. Experts have already quoted from the classics.
The casing is a spaced tube when making a heat exchanger. There should be six of them. They are used to fix the position when installing the baffle. The small triangular opening on the baffle is used for draining liquid.
Why is there a sleeve (movable) at the outermost corner of the heat exchanger tube bundle? Mainly to prevent the medium from changing direction at the corners and wearing the tube arms. ； Why is there a small triangular notch on the baffle? correct answer