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Manufacturing method of annular seam structure of water storage tank

A manufacturing method and a technology of a water storage tank, which are applied to steam boiler components, steam boiler accessories, lighting and heating equipment, etc., can solve the problems of large wall thickness margin, thin inner surface wall thickness, and single manufacturing method of the water storage tank. problem, to achieve the effect of improving the quality and economic benefits of the circular joint, reducing the positive deviation of the wall thickness, and reducing the consumption

Active Publication Date: 2020-10-13
HARBIN BOILER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problems of single manufacturing method and backward manufacturing technology in the existing annular seam structure of the water storage tank, resulting in large wall thickness margin, severe thinning of the inner surface wall thickness, discontinuous structure, and poor processing quality in the manufactured water storage tank problem, and then provide a method for manufacturing the annular seam structure of the water storage tank

Method used

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  • Manufacturing method of annular seam structure of water storage tank
  • Manufacturing method of annular seam structure of water storage tank
  • Manufacturing method of annular seam structure of water storage tank

Examples

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specific Embodiment approach 1

[0043] Specific implementation mode one: combine Figure 4 and Figure 5 Describe this embodiment, the annular seam structure of the water storage tank in this embodiment, the water storage tank includes two seal heads 2 and several cylinder sections 1, all the cylinder sections 1 are spliced ​​in sequence along their axes to form a cylinder body, and the two seal heads 2 are respectively arranged at both ends of the cylinder body, the ellipticity of the cylinder body and the head 2 is ±0.6mm, and the thickness deviation of the cylinder body and the head 2 is 0-2mm; there is a butt joint between two adjacent cylinder sections 1 Circumferential groove 3, the butt ring groove 3 between each cylinder section 1 and the adjacent cylinder section 1 is connected by welding, and each head 2 and the adjacent cylinder section 1 are provided with The butt ring seam groove 3, the butt ring seam groove 3 between the head 2 and the cylinder section is connected by welding.

[0044] The he...

specific Embodiment approach 2

[0045] Specific implementation mode two: combination Figure 4 and Figure 5 To describe this embodiment, the barrel joint 1 of this embodiment is a forging or a large-diameter thick-walled seamless steel pipe whose inner and outer surfaces have been machined and finely ground. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific implementation mode three: combination Figure 4 and Figure 5 The present embodiment will be described. In this embodiment, the outer diameter of the cylindrical joint 1 is 600 to 1200 mm, and the wall thickness of the cylindrical joint 1 is 60 to 160 mm. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a water storage tank circular seam structure and a manufacturing method thereof, and relates to the technical fields of high-capacity power station boiler water storage tank designing and manufacturing. The problems that an existing water storage tank circular seam structure is single in manufacturing method and lag in manufacturing technology, thus, a manufactured water storage tank is large in wall thickness margin, serious in inner surface wall thickness decreasing, discontinuous in structure and poor in machining quality are solved. According to the water storage tank circular seam structure, a water storage tank comprises two sealing heads and a plurality of barrel sections, all the barrel sections are sequentially spliced into a barrel body along the axes of the barrel sections, the two sealing heads are arranged at the two ends of the barrel body correspondingly, the ovality of the barrel body and the sealing heads is + / -0.6mm, and the thickness deviationbetween the barrel body and the sealing heads is 0-2mm; and a butt-joint circular seam groove is formed between every two adjacent barrel sections, a butt-joint circular seam groove is formed betweeneach sealing head and the corresponding barrel section adjacent to the sealing head, and the butt-joint circular seam grooves are connected through a welding mode. The manufacturing method is used for manufacturing of the water storage tank circular seam structure.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of a large-capacity power plant boiler water storage tank, in particular to a method for manufacturing a ring seam structure of the water storage tank. Background technique [0002] For a long time, large-capacity and high-parameter utility boiler water storage tanks, see figure 1 . The spherical head of the water storage tank is made of forgings; the cylinder of the water storage tank is spliced ​​by multiple sections of large-diameter thick-walled steel pipes or forged pipes. The outer diameter of the cylinder is 800-1200mm, and the wall thickness is 60-160mm. 1.5 ~ 6mm. Even if the raw materials have been machined or finely ground, and the shape and dimension accuracy is high, it is still necessary to process the inner circle and transition of the spliced ​​circular seam groove, see figure 2 and image 3 . As a result, the wall thickness of the water storage tank is large, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/00B23P15/00
Inventor 袁承春
Owner HARBIN BOILER CO LTD
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