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Method for monitoring a fast closing valve bank and associated device

A fast closing and multiple technology, applied in the direction of valve device, power plant safety device, greenhouse gas reduction, etc., can solve the problems of high cost and achieve the effect of reliable function

Active Publication Date: 2014-07-09
SIEMENS ENERGY GLOBAL GMBH CO & KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The described failure scenarios must be taken into account when designing the entire arrangement consisting of pipes and valves and can therefore lead to high costs

Method used

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  • Method for monitoring a fast closing valve bank and associated device
  • Method for monitoring a fast closing valve bank and associated device
  • Method for monitoring a fast closing valve bank and associated device

Examples

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Embodiment Construction

[0033] exist figure 1 and 2 A part of a nuclear power plant is shown in FIG. 1 , in which live steam is generated by means of a steam generator 14 . Live steam is conducted through four parallel pipes 16 , 18 , 20 and 22 . Connected in each of the four lines 16 , 18 , 20 and 22 are pairs of quick-closing valves 16 a , 18 a , 20 a or 22 a and regulating valves or regulating valves 16 b , 18 b , 20 b and 22 b .

[0034] Next, the four pipes 16 , 18 , 20 and 22 are bundled and lead to the two-channel high-pressure part 24 of the turbine 26 . Turbine 26 drives generator 28 .

[0035] The high-pressure part 24 of the turbine 26 is primarily a saturated steam turbine.

[0036] After flowing through the high-pressure part 24, the vapor pressure is still about 10 bar. The water content of the steam is high so that a reheater 30 is connected downstream. The reheater heats the steam before it is introduced into the three low-pressure components 32 of the turbine 26 .

[0037]The ...

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Abstract

The method involves feeding of steam into multiple fast-closing multi-fittings under certain operating conditions. Multiple fast-closing valves (16a to 22a) of the multi-fittings are adjusted according to functions of control variables. The multi-fittings are monitored with respect to possible faults. An independent claim is also included for an apparatus for monitoring a fast-closing multi-fitting, particularly in a nuclear power plant.

Description

technical field [0001] The invention relates to a method for monitoring fast-closing multiple valves or multiple valves with fast-closing and regulating functions by means of multiple valves, in particular in nuclear power plants. Furthermore, the invention relates to a device for monitoring such rapidly closing multiple valves. Background technique [0002] Nuclear power plants have steam generators in the reactor building, from which live steam is directed via four pipes to saturated steam turbines. There are fast closing valves and adjusting valves connected in series in the pipelines. A valve combination consisting of a quick closing valve and a regulating valve regulates the steam supply and inhibits said steam supply when required. Here, the snap-off valves can be closed in combination or individually. The closing process results in a pressure increase and braking of the mass flow upstream of the respective valve, which is propagated as a pressure wave at the speed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00
CPCG21D3/06Y02E30/40F16K37/0075Y02E30/00
Inventor 马丁·本瑙尔于尔根·哈费曼克里斯托夫·申德勒杰尔塔·齐默
Owner SIEMENS ENERGY GLOBAL GMBH CO & KG