T/ZJL 0002-2022 Active Group standards

T/ZJL 0002-2022 Industrial turbine surface condenser stainless steel composite tube plate

Publish Date: 2022-09-08 Implement Date: 2022-09-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZJL 0002-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other steel products

Publish Date: 2022-09-08

Implement Date: 2022-09-30

Scope

Scope: This document specifies the structural type, technical requirements, test methods, inspection rules, marking, packaging, and storage requirements for stainless steel composite tube plates used in surface condensers of industrial turbines (hereinafter referred to as "composite tube plates"). This document applies to single-sided composite tube plates manufactured by explosion welding, with a thickness of not less than 30 mm and a diameter of not more than 4,800 mm. Composite tube plates for surface condensers used in turbines for other purposes can be used as a reference. This document does not apply to composite tube plates manufactured by rolling welding. Main technical content: The main functions of condensers are: first, to establish and maintain a high vacuum at the turbine exhaust ports; second, to condense the turbine exhaust steam into water for recycling as boiler feedwater. If the condenser leaks, it will cause the entire turbine unit to shut down. Condenser leaks usually occur at the tube plates, which are subject to long-term water flow impact and corrosion from chlorides and microorganisms in the circulating water. If the quality of the tube plates and tube holes is not up to standard, it is easy to lead to leaks at the tube plates. The quality of the tube plates directly affects the economy and safety of the turbine system. However, there are currently no execution standards for this product at home and abroad, so it is necessary to formulate an execution standard that can guide production and inspection to improve the quality and stability of tube plates and condenser products. Since there are currently no directly related execution standards for this product at home and abroad, the main significance of this standard is to fill the gap in industry standardization. In addition, during the implementation of this standard, the two standards of "JB/T 10085-2020 Turbine Surface Condensers" and "NB/T 47002.1-2019 Composite Plates for Pressure Ve