Method for welding tower in vertical assembling mode by utilizing jacks and crane

A jack and crane technology, applied in welding equipment, welding equipment, welding accessories, etc., can solve the problems of difficult to control verticality, verticality, misalignment, and instability.
CN103567601AActive Publication Date: 2014-02-12CHINA NAT CHEM ENG THIRD CONSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT CHEM ENG THIRD CONSTR
Publication Date
2014-02-12

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Abstract

The invention discloses a method for welding a tower in vertical assembling mode by utilizing jacks and a crane. The method includes the following steps that firstly, the straightness of all sections of the tower is checked, an end socket of each section of the tower is cut off, and grooves are formed in the end portions of opposite openings of all sections of the tower in a cutting mode; secondly, a lower tower is fixed on a foundation, and the perpendicularity and the elevation of the lower tower are aligned; thirdly, a plurality of first supporting tools are evenly distributed on the peripheral wall of the lower tower, the jacks are distributed on the first supporting tools respectively and adjusted to the same horizontal position, and force measuring instruments are arranged on the jacks; fourthly, a plurality of second supporting tools are evenly distributed on the peripheral wall of the upper tower; fifthly, the upper tower is craned by the crane so that all the second supporting tools can be arranged on the jacks correspondingly, stress on the tops of the jacks is adjusted, the grooves of the end portions of the upper tower and the lower tower are assembled, the perpendicularity of the upper tower and the assembling gap of the upper tower and the lower tower are adjusted, the total carrying capacity of the jacks is N, the carrying capacity of the crane is F, and the weight of the upper tower is Q which is kept to be equal to N+F; sixthly, several welders use the same welding current and meanwhile perform symmetric welding, and therefore welding joints are welded in a multi-layer mode.
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Description

technical field

[0001] The invention relates to a method for vertical butt welding in the air of tower equipment in the energy and chemical construction industry, and belongs to the field of welding technology. Background technique

[0002] As the design of production equipment becomes larger and larger, the transportation of many equipment in construction projects has become a major problem. Therefore, many more sophisticated large-scale equipment choose on-site butt welding, and on-site pairing is divided into horizontal pairing and vertical pairing. The method of horizontal grouping and overall hoisting is relatively simple, but for high-precision equipment, it may cause deformation of the equipment body. The segmented vertical aerial assembly can better control the deformation of the equipment body and meet the requirements of precise installation of precision equipment. However, during the construction process, there are problems such as large welding deformation, diffi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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