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Calculation of tube bundle core pulling force

2009-06-23View Original

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How is the core-pulling force of a U-tube bundle calculated?
Reply #22009-06-23
Do you mean the force required to pull out the tube bundle when replacing it? It also depends on how the tube bundle is supported, whether there are slides in place, and whether there are deposits in the shell side. Usually, we use a manual winch to pull it out.
Reply #32009-06-23
You’re right; now customers are asking us to design the force required to extract the tube bundle
Reply #42009-06-24
^_^ Customers are truly like gods~~~ They can make any request. To determine the focus point, one must first decide on the method of focusing! It has a lot to do with the conditions on site. For example, to lift an object weighing 1 kg using a lever, if the fulcrum isn’t chosen properly, it’s impossible to calculate the force required^_^ If it were me, I would tell the customer that the detailed specifications are available in the drawings for the U-shaped tube; they should check those. To determine the exact force required, they first need to figure out how to lift the object PS: Are there any issues related to this in the contract? Are you a manufacturing factory or an engineering company? Engineering companies are rarely caught by such problems^_^
Reply #52009-11-25
I also need to calculate the core-pulling force! ! I’m just adding a new heat exchanger to the two existing ones; our civil engineering team wants me to provide data on the pulling force required, it’s driving me crazy! ! I don’t even know what core-pulling force is; does anyone know how to calculate it exactly? ! ! ! :dizzy:
Reply #62013-08-01
When removing the core from a heat exchanger, should considerations be given to the impact of the core removal force on the supports and the shell of the heat exchanger?
Reply #72013-08-01
In fact, we can only calculate the weight and center of gravity of the die. If the equipment is placed horizontally, then the force required to extract the die is the frictional force between the tube bundle and the housing; to determine this value, it is necessary to know the coefficient of friction between the tube bundle and the slide rail (or, in the absence of a slide rail, the cylinder itself). I really haven’t calculated it; I can look up relevant information, but I think there are too many different situations, so there definitely isn’t an absolute value.
Reply #82013-08-01
I have provided detailed calculation methods for this question in this section; please search for them on your own.

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