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Large-diameter high-pressure zirconium coating pressure vessel as well as manufacturing method and application thereof

A pressure vessel and manufacturing method technology, applied in pressure vessels, manufacturing tools, fixed-capacity gas storage tanks, etc., can solve the problem that the manufacturing process cannot meet the actual needs of large-diameter high-pressure zirconium-clad pressure vessels, and solve the problem of vessel strength. , The effect of simple combination and mature manufacturing process

Active Publication Date: 2022-02-01
天津渤化工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a large-diameter high-pressure zirconium-clad pressure vessel for the defect that the existing equipment structure and manufacturing process cannot meet the actual needs of the large-diameter high-pressure zirconium-clad pressure vessel

Method used

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  • Large-diameter high-pressure zirconium coating pressure vessel as well as manufacturing method and application thereof
  • Large-diameter high-pressure zirconium coating pressure vessel as well as manufacturing method and application thereof
  • Large-diameter high-pressure zirconium coating pressure vessel as well as manufacturing method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0077] A large-diameter high-pressure zirconium-clad pressure vessel, comprising an inner cylinder 1 and an outer cylinder 2 set outside the inner cylinder 1;

[0078] The material of the inner cylinder 1 is a zirconium composite plate, wherein the zirconium coating a of the zirconium composite plate is located inside the inner cylinder 1; the inner cylinder 1 includes an inner head 1- 1 and the inner cylinder section 1-2; welding between the inner head 1-1 and the inner cylinder section 1-2 and between two adjacent inner cylinder sections 1-2; specific welding The method is that a zirconium cladding is provided at the welding joint between the inner layer head 1-1 and the inner layer cylinder section 1-2 or between two adjacent inner layer cylinder sections 1-2 Gap 3: The inner layer cylinder section 1-2 is welded to the inner layer head 1-1 or the base layer b of the zirconium composite plate at the joint between two adjacent inner layer cylinder sections 1-2.

[0079] The ...

Embodiment 2

[0084] This embodiment introduces its process hole on the basis of Embodiment 1.

[0085] One or more process holes are provided at the corresponding positions of the inner cylinder body 1 and the outer layer cylinder body 2; the process holes can be used as import and export of materials, and can also be used as manholes.

[0086] Such as Figure 7 with Figure 8 As shown, a zirconium adapter 8 and a forging flange 9 are installed on the process hole; the forging flange 9 includes an integrally forged connection part 9-1 and a flange part 9-2; the connection part 9-1 The free end is welded on the outer cylinder 2; the zirconium adapter 8 is attached to the inner wall of the forging flange 9; one end of the zirconium adapter 8 is welded on the inner wall of the inner cylinder 1 , and the other end is fixedly connected with the flange part 9-2.

[0087] A concave groove 10 is opened on the plane of the flange part 9-2; a zirconium composite plate is welded and filled in the ...

Embodiment 3

[0092] A method for manufacturing a large-diameter high-pressure zirconium-clad pressure vessel, comprising the following steps:

[0093] Process 1: Manufacturing the inner cylinder

[0094] The zirconium composite board is made of zirconium / titanium / steel three-layer composite board (Zr-3 / TA1 / Q345R B0); the zirconium composite board includes the zirconium cladding a and the base layer b; the composite board is ultrasonically retested before entering the factory, Ⅰ grade qualified. After passing the inspection, carry out scribing-cutting-rolling / stamping, and manufacture the zirconium composite plate into the inner layer cylinder section 1-2 and the inner layer head 1-1 respectively; the inner layer cylinder section 1-2 and the The zirconium coating a of the zirconium composite plate at the junction of the inner layer head 1-1 is removed to form a zirconium coating gap 3, and then the inner layer cylinder section 1-2 is connected to the inner layer head 1-1 Base layer b weld...

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Abstract

The invention discloses a large-diameter high-pressure zirconium coating pressure vessel as well as a manufacturing method and application thereof. The large-diameter high-pressure zirconium-coated pressure vessel comprises an inner-layer cylinder body and an outer-layer cylinder body sleeved outside the inner-layer cylinder body, wherein the inner-layer cylinder body is made of a zirconium composite plate and comprises an inner-layer seal head and an inner-layer cylinder section; the inner-layer seal head and the inner-layer cylinder section are welded; the outer-layer barrel body is a sectional type forged part and comprises a spherical sealing head and a forged cylinder section; and the spherical sealing head and the forged cylinder section as well as the two adjacent forged cylinder sections are welded. According to the invention, the thin zirconium composite plate adopts the zirconium material as the inner layer, so that the requirement for corrosion resistance in the production process is met, and the manufacturing experience of a zirconium composite plate vessel commonly used under the working conditions of medium and low pressure is utilized. The strength problem of the vessel is solved by adding an integral forge piece outside the inner-layer vessel. Meanwhile, the combination mode of the outer-layer vessel and the inner-layer vessel is simpler than that of a multi-layer binding mode, and special tool equipment is not needed.

Description

technical field [0001] The invention relates to the technical field of chemical production equipment, in particular to a large-diameter high-pressure zirconium-clad pressure vessel and its manufacturing method and application. Background technique [0002] Zirconium has good corrosion resistance and is widely used in chemical and nuclear industries. It can be used in the main equipment of acetic acid, ethylene glycol, polyoxymethylene, nitric acid, chlorinated polyethylene and other industries. Due to the high price of zirconium materials, in the field of pressure vessels, zirconium materials are generally not directly used as the main material of equipment, but zirconium / steel composite structures are used to manufacture pressure vessels. Medium and low pressure pressure vessels that require zirconium as a corrosion-resistant layer are all manufactured using zirconium composite plates as materials. Since the zirconium coating cannot be combined with the steel base layer b...

Claims

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Application Information

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IPC IPC(8): B23K26/21B23K31/02B23P15/00F16J12/00
CPCB23K31/02B23K26/21B23P15/00F16J12/00
Inventor 张彦斌万玉辉孙砚祥康林勇赖殿琛
Owner 天津渤化工程有限公司
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