Sleeving device and sleeving method for pipe system without guide rollers and shell

Abstract

The invention discloses a sleeving device and a sleeving method for a pipe system without guide rollers and a shell. The device comprises the pipe system, the shell, and a support platform positioned below the pipe system; the support platform is provided with multiple bracket units connected with the bottom of the pipe system in a support manner and independent from each other; a working platform is arranged on one side of the head end of the pipe system; the shell is arranged on one side of the tail end of the pipe system; a walking crane for naturally hanging the shell is arranged above the shell; a windlass and a rope limiting device are fixedly arranged on the working platform; a first traction rope extending from a rope outlet of the windlass penetrates through the rope limiting device, and the tail end of the first traction rope is connected with a rope separation device; the first traction rope is connected with a first joint of the rope separation device; and a second traction rope extending from a second joint of the rope separation device is respectively connected to two sides of the shell. The method realizes sleeving between the pipe system and the shell, and achieves the effects of low deformation of the pipe system, precise matching between the pipe system and the shell and completion of once stable sleeving.

Description

technical field [0001] The invention relates to the technical field of thermal engineering, in particular to a fitting device for a piping system without a guide roller and a casing and a method for fitting the piping system and a casing without a guiding roller using the device. Background technique [0002] The low-pressure heater is the key equipment of the conventional island secondary heat recovery system of the nuclear power plant. Its function is to transport the steam that has done part of the work in the turbine to the heater to heat the feed water to increase the temperature of the water, reduce the amount of steam discharged from the turbine to the condenser, reduce energy loss, and improve the cycle efficiency of the thermal system. The owner of the first self-designed domestic low-voltage heater exported to European nuclear power is EDF Group ("EDF"). This equipment is used in EDF's CP1 series nuclear power plants. Purchase order placed in China. At the same t...

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Problems solved by technology

Due to the disadvantage of the existing technology is poor versatility, it cannot meet the needs of narrow gaps, no guide rollers, small diameters, and long lengths of slender housings. It is too adaptable to the suits of structures such as EDF low-profile or more complex products. Poor, first of all, setting guide rollers and laying tracks requires sufficient space inside the product; secondly, the left and right balance in the process of fitting the piping system and the shell is not easy to control, and is not suitable for narrow gap piping systems and shells; in addition, due to the The rigidity of the system is small, and it is easy to deform during the movement

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