A marine thermal expansion tube compensation device

Abstract

The invention discloses a compensation device for a marine thermal expansion pipe, comprising a first seat body, a sliding pipe, a loose flange and a second seat body installed in sequence; the first seat body comprises a first pipe body, and both ends of the first pipe body The outer diameter of the sliding pipe is smaller than the inner diameter of the first pipe body, one end of the sliding pipe extends into the first pipe body, and the other end of the sliding pipe is provided with a sliding plate; one end of the second seat body is provided with a sliding plate for installing the sliding plate The other end of the second seat body is provided with a flange; the loose sleeve flange is sleeved on the outer wall of the sliding pipe, and the flange on the first seat body close to the slide plate is connected with the loose sleeve flange; between the inner bottom surface of the end cover and the end surface of the sliding plate; the radial sealing ring is arranged between the loose flange and the sliding tube. It solves the problems of coaxiality deviation of the exhaust pipe and different shaft requirements due to changes in the working state during installation, and has long service life and low application cost.

Description

technical field [0001] The invention relates to the technical field of heat compensation pipe structures, in particular to a compensation device for marine heat expansion pipes. Background technique [0002] At this stage, the bellows compensator is widely used in the exhaust system of ships. Since the bellows compensator needs the length of the exhaust pipe and the exhaust temperature to calculate the compensation amount and the amount of use, it also needs to be calculated according to the direction of the exhaust pipe, The arrangement position and technical requirements such as bending radius are further set to a fixed installation position. Each type of ship needs to be designed separately. The design is complicated, the installation is difficult, and the construction cost is high; low security performance. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a marine thermal expansion pipe compensation device which is convenient for th...

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Problems solved by technology

[0002] Bellows compensators are widely used in marine exhaust systems at this stage. Since bellows compensators need exhaust pipe length and exhaust temperature to calculate the amount of compensation and the amount of use, it is also necessary to calculate the amount of compensation based on the direction of the exhaust pipe, Arrangement positions such as bending radius and technical requirements further set a fixed installation position. Each type of ship needs to be designed separately, which is complex in design, difficult in installation, and high in construction costs. In addition, the bellows compensator is very easy to be damaged and broken. low safety performance

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