Falling object protective platform in nuclear power condenser

Abstract

A falling object protective platform in a nuclear power condenser comprises a cover cloth (200) arranged above a condenser titanium pipe (100), and a limit structure used for limiting the cover cloth(200). The falling object protective platform in the nuclear power condenser is smart in design and strong in practical value.

Description

technical field [0001] The invention relates to the field of nuclear power plant maintenance equipment, in particular to an anti-falling object platform in a nuclear power condenser. Background technique [0002] For the German Siemens HN1000-6.43 steam turbine (such as Figure 1-Figure 4 shown), which has 1 high-pressure cylinder and 2 low-pressure cylinders. Each low-pressure cylinder corresponds to a condenser, and the condenser and the low-pressure outer cylinder are rigidly connected as a whole by welding. The main function of the condenser equipment is to receive the exhaust steam from the low-pressure cylinder of the steam turbine, and convert the exhaust steam into condensed water, so that the steam-water system forms a closed cycle. The exhaust of the low-pressure cylinder of the cooling steam turbine is realized by using seawater; two sets of titanium tube bundles are arranged in each condenser, such as Figure 5 Shown: Each group of titanium tube bundles has 135...

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Problems solved by technology

[0004] Furthermore, the falling off of erecting materials can easily lead to the problem of smashing titanium tubes

If the titanium tube is damaged, it is usually necessary to dismantle the water chamber first. Here, the disassembly and assembly period of the lower water chamber is about 10 days; then when disassembling the titanium tube, it is necessary to block the tube holes on the tube plate to prevent the circulating cooling water from entering the condenser steam In the area, here, the replacement period of a titanium tube is about 4 hours; if the damaged titanium tube is not treated, since the cooling water in the titanium tube of the condenser of the coastal power plant is seawater (the inland power plant is fresh water), the seawater will corrode the equipment nature, when the circulating cooling water enters the steam area of ​​the condenser and merges with the condensed water, the quality of the condensed water will drop, and the unit will be forced to reduce power until it is shut down

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