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Prefabrication platform and prefabrication method for jacketed pipe

A jacketed pipe and platform technology, applied in the direction of manufacturing tools, auxiliary devices, auxiliary welding equipment, etc., can solve the problems of complex prefabricated construction operations and low work efficiency

Pending Publication Date: 2018-03-30
SHANGHAI INSTALLATION ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the prefabrication construction operation of the straight pipe section of the existing large-diameter jacketed pipe is relatively complicated and the work efficiency is low

Method used

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  • Prefabrication platform and prefabrication method for jacketed pipe
  • Prefabrication platform and prefabrication method for jacketed pipe
  • Prefabrication platform and prefabrication method for jacketed pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Combining Figure 1 to Figure 7 Illustrate the prefabricated platform 100 of the jacketed pipe of the present invention, it comprises the base plate 10 that is arranged horizontally, the back plate 20 that is vertically fixed on the left side of base plate 10, the flange plate positioning frame 30 that is arranged close to the back plate 20, respectively with the base plate 10 and the inner tube positioning assembly 50 connected to the back plate 20, and two sets of outer tube positioning components 40 arranged at intervals and arranged side by side on the bottom plate; wherein, the back plate 20 needs to ensure a certain flatness to meet the requirements of the flange plate 200 The dimensional accuracy requirements of the installation; the flange positioning frame 30 includes a positioning base 31 and an adjusting rod one 32 arranged up and down and detachably connected, and the bottom of the adjusting rod one 32 is fixed on the bottom plate 10; the inner tub...

Embodiment 2

[0037] Embodiment 2: Combination Figure 5 Illustrate the prefabricated platform 100 of the jacketed pipe of the present invention. Unlike the first embodiment, the central rod 51 does not have external threads, and the telescopic support includes a fixed sleeve one 537 sleeved and fixedly connected to the central rod 51, and two ends The hydraulic telescopic rod 538 hinged with the fixed sleeve 1 537 and the support rod 532 respectively adjusts the radial displacement of the support rod 532 by controlling the extension and contraction of the hydraulic telescopic rod 538, so as to achieve the purpose of horizontal positioning of the inner tube 300 , using the hydraulic telescopic rod 538 connected with the control system signal, the operation is more flexible, the degree of automation is high, and the work efficiency is further improved.

Embodiment 3

[0038] Example Three: Combining Figure 1 to Figure 7 Illustrate and utilize the prefabrication method of jacket pipe of the present invention, concrete steps are as follows:

[0039] S1: Assemble the prefabricated platform 100 of the jacketed pipe as described in Embodiment 1 or 2, remove the support frame 52, and insert the flange 200 into the central rod 51, so that the flange 200 is close to the back plate 20 and positioned The base 31 is supported, and the elevation of the positioning base 31 is adjusted through the adjusting rod 32, so that the flange 200 is coaxial with the central rod 51, that is, the axes of the two coincide;

[0040] S2: Set the inner tube 300 on the inner tube positioning assembly 50, adjust the telescopic support of the telescopic guide wheel support frame 53, so that the guide wheel 533 of the support rod 532 is against the inner wall of the inner tube 300;

[0041] S3: Put the outer tube 400 on the two outer tube brackets 41 of the outer tube po...

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Abstract

The invention discloses a prefabrication platform and a prefabrication method for a jacket pipe and relates to the technical field of petrochemical engineering and chemical fiber equipment installation. The prefabrication platform and the prefabrication method for the jacketed pipe are provided to solve the problems that according to existing prefabrication construction for a straight pipe sectionof a major-diameter jacketed pipe, operation is relatively complex, and the working efficiency is low. The prefabrication platform is composed of a flange plate positioning frame, an inner pipe positioning assembly and a plurality of outer pipe positioning assemblies. A first adjusting rod arranged on the bottom of a positioning base can adjust the height of a flange plate. The inner pipe positioning assembly is composed of a center rod perpendicularly fixed to a back plate, an extensible and retractable guide wheel supporting frame arranged on the center rod in a sleeving manner and a supporting frame connected to the other end of the center rod, wherein the extensible and retractable guide wheel supporting frame is composed of a fixing casing pipe arranged on the center rod in a sleeving manner, supporting rods which are evenly distributed in the radial direction of the axis of the center rod and hinged to the fixing casing pipe and extensible and retractable supports, one end of each extensible and retractable support is hinged to the corresponding supporting rod, the other end of each extensible and retractable support is hinged to the center rod, and the other end of each supporting rod is provided with a guide wheel. The outer pipe positioning assembly comprises an outer pipe support and a second adjusting rod which are detachably connected.

Description

technical field [0001] The invention relates to the technical field of petrochemical and chemical fiber equipment installation, in particular to a jacketed pipe prefabrication platform and prefabrication method. Background technique [0002] In petrochemical production, in order to keep the temperature of specific products constant, prevent the formation of corrosive condensate, and avoid blockage of process fluid due to low temperature, heat tracing for process pipelines is usually adopted to ensure normal production operations. Jacketed pipe is a way to supplement heat. It is a pipe with a two-layer casing structure. There is a concentric small-diameter casing inside the large-diameter casing, namely the outer pipe and the inner pipe below. In the gap between the outer tube and the inner tube, a heat carrier for heating or heat preservation flows to supplement the heat loss of the inner tube during the process of conveying the process medium, and the heat exchange is compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053
CPCB23K37/053B23K37/0531
Inventor 曹智云孙纪军陆欢军倪志海李丰震
Owner SHANGHAI INSTALLATION ENG GRP
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