Exhaust pipe support means _148 -

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Way of the exhaust pipe support

tpipewhichiselastical-lysupported. Itisofgreatsignificanceinensuringsafeoperationofrelevantequipmentandcomponents. 1 Introduction At present the ship exhaust pipe fixed, in consideration of vibration isolation, noise reduction, impact resistance requirements, most of the elastic component. But these are not necessarily elastic component installation method is very appropriate, so often in the exhaust pipe and bellows expansion joints, even during normal use of related equipment damaged by the abnormal phenomenon. In view of this situation, the way in the design of the exhaust pipe fixed to take some appropriate measures are very necessary. In this combined experience to make a real ship profiles for reference. 2 main methods and techniques of supporting Figure 1 shows a typical layout of the exhaust pipe. The supporting parts for supporting the approach taken by the typical structure and techniques of narrative in the following: 1) supporting parts I - the exhaust pipe to prevent thermal deformation of the applied load weight and turbocharger in the exhaust port at the host, the site There is a bellows expansion joint, the device can extend the exhaust pipe of a certain deformation of the axial direction to compensate, but the amount of compensation to its radial is limited. Expansion joint owner of the site reflect the most strongly non-normal damage. Because the host is to install rigid, and elastic support means the exhaust pipe is fixed, so the support site I, as the two parts ● --- a. . ~ I,[link widoczny dla zalogowanych],. . +=-----=: Bu - Figure 1 Schematic layout of a typical exhaust pipe cut-off point,[link widoczny dla zalogowanych], we must strengthen the constraints. We are as close as possible expansion joint in the area I take support means shown in Figure 2 A. This way, with one to two pairs (based on the size of the exhaust pipe diameter) metal elastic support,[link widoczny dla zalogowanych], the vibration of the exhaust pipe diameter limited to the smaller range. If the site away from the deck, bulkheads and other components for support, you can take in Figure 3 B in the form of supporting means, or stays or [Received Date] 2o03-4-3 [Author] Cheng Jun (1948. 1o a), male, Han nationality, Anhui, senior engineer, mainly in turbine design. Shang Yajie (1979.8 -), female, Han nationality, Tianjin, Assistant Engineer, mainly in turbine design. 332,004 on February 1 ship SHlP8LB0ATFebruary. 20040.1 pull, a circumferential direction with four such support, with the horizontal position of about 45. Orientation, and will be fixed firmly to the exhaust pipe diameter can greatly avoid the damage at the expansion joint. At this point, this part should abandon the use of elastic components. Figure 2 Figure 3 A way of supporting bearing means B2) supporting part Ⅱ - the premises through the deck or grating, as the site has been away from the device interface, can be taken to support means shown in Figure 4 C, but for the longer tube Road, is still recommended at intervals of about 5 ~ 6m, according to the supporting means shown in Figure 2 A were fixed on the pipe. Bearing support bracket can be combined with other components into consideration grid settings. , I re-hanging in Figure 4 of the way supporting C3) for the site Ⅲ, because here is also rigid and flexible installation of fixed equipment, the exhaust pipe of the demarcation point, would therefore be as shown in Figure 5, D supported way to fix the exhaust pipe, 4 poles are used cloth around it. This can effectively suppress the vibration and displacement of the site to protect the bellows expansion joints and related equipment. 4) For parts IV, the exhaust pipe through the chimney place, usually before the manner shown in Figure 6. The more traditional way, there are some drawbacks. For example, the exhaust pipe through the chimney of the root bearing strength is not enough; dangerous gases may diffuse invasive; boat parked in the ice 34, the cold air will enter the cabin,[link widoczny dla zalogowanych], and so on. Figure 5 Bearing Form D /,, Bu,, a]] Il smoke from the Ij \ / -, \ support gas f,,, I - I, Figure 6 Xiao conventional shoot tip exhaust structure as shown in Figure 7, we use structure, and the advantages are: ① the top of supporting robust and reliable (compared with Figure 6); ② roof at the exhaust pipe through the chimney remain sealed, no dangerous gases, the possibility of cold air; ③ changes in axial length with the exhaust pipe ability to compensate; ④ exhaust pipe of the chimney above the roof split up some of the new ones easily. Figure 7, the exhaust pipe through the top of the new structure 3 Conclusion In summary, the exhaust pipe layout, supporting a variety of ways, the situation should be combined with various parts of the external conditions and installation flexibility to choose the appropriate support way. Particular attention to rigid and flexible part of the boundary part of the supporting point of the choice of methods to determine. Because the parts of the right support,[link widoczny dla zalogowanych], at least to ensure that run-time equipment, expansion joint security. -, 1

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