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 sattaa

link 8.05.2013 10:45 
Subject: потерял смысл + two saddles of an exchanger? build.struct.
Exchanger Bundle Pull Force
Heat exchanger supports shall be designed for, in addition to vertical loads, a horizontal(longitudinal)
tube bundle pulling force equal to:.100% of the bundle weight for bundles weighing less than 22.0kN.
. 22.0kN for bundles weighing 22.0kN to 44.0kN
. 50% of bundle weight for bundles weighing more than 44.0kN.
A minimum of 9.0kN shall be used as bundle pulling force. Unless specific information is available from the vendor, the weight distribution given above over two saddles of an exchanger shall be used for vertical loads and for calculation of resistance at the sliding support Bundle reinsertion loads shall be considered and assumed equal to the bundle pulling forces defined above, except in opposite direction. Only one effort shall be considered, when several exchangers are stacked and all exchangers other than the one being considered shall be assumed to have had their bundles already removed.

Друзья, приветствую - затрудняюсь передать смысл вот этого отрывка - Bundle reinsertion loads shall be considered and assumed equal to the bundle pulling forces defined above, except in opposite direction. Only one effort shall be considered, when several exchangers are stacked and all exchangers other than the one being considered shall be assumed to have had their bundles already removed.

+ two saddles of an exchanger в данном случае подразумеваются два ложемента?

Заранее благодарю за рассмотрение моего вопроса на форуме.

 Lonely Knight

link 8.05.2013 11:18 
смысл где-то такой)

усилие, требующееся для заталкивания пучка обратно в корпус, равно усилию извлечения его из корпуса, сила при этом будет направлена в обратном направлении (логично)

При расчете [опор] блока теплообменников, установленных друг на друга, учитывают только усилие демонтажа одного теплообменника, принимая, что из остальных пучки уже вытащены.

 sattaa

link 8.05.2013 12:23 
я бы мозг свернул прежде чем "догнать" - Большое спасибо Knight!

 

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