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Device and method for measuring impurities in working medium of supercritical carbon dioxide boiler

A carbon dioxide and measuring device technology, applied in measuring devices, material analysis using radiation diffraction, instruments, etc., can solve problems such as high operating costs and short development time, to ensure safe and economical operation, avoid air sucking back, and respond quickly fast effect

Pending Publication Date: 2022-02-08
HARBIN ELECTRIC POWER GENERATION EQUIP NAT ENG RES CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in this cycle, food-grade CO 2 As a source of working fluid, the quality of working fluid can be significantly improved, but the operating cost will be much higher than that of industrial grade CO 2 , but the emerging supercritical CO 2 The development time of boiler technology is relatively short, and its quality evaluation system is blank at home and abroad. 2 The guidance of boiler development is of great significance

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  • Device and method for measuring impurities in working medium of supercritical carbon dioxide boiler

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specific Embodiment approach 1

[0029] Specific implementation mode one: combine figure 1 Describe this embodiment, the measuring device of a kind of supercritical carbon dioxide boiler working medium impurity of this embodiment, comprise sampling valve 2, flowmeter 3, first particulate filter 4, desuperheating and decompression device 5, pressure gauge 6, temperature Sensor 7, second particle filter 8, analyzer and terminal pump 12, sampling valve 2, flow meter 3, first particle filter 4, temperature and pressure reduction device 5, pressure gauge 6, temperature sensor 7, second particle The filter 8, the analyzer, and the terminal pump 12 are connected in sequence. The terminal pump 12 avoids air sucking back when the pressure of the working medium is insufficient; It is of great significance to the monitoring and control of working fluid quality. It can realize the detection of working fluid quality and the monitoring of gas phase components (working fluid components) in the process of closed supercritica...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination figure 1 Illustrate this embodiment, the measuring method of a kind of supercritical carbon dioxide boiler working fluid impurity of this embodiment, select working fluid sampling port in closed supercritical carbon dioxide cycle pressure, temperature stable several positions and connect sampling port with supercritical carbon dioxide The connection of the measurement device for impurities in the boiler working fluid includes the following steps:

[0031] Step 1: Purge the measuring device:

[0032] Need to carry out purging before measurement, described high-pressure gas tank is housed with purging gas 14, and purging gas 14 is nitrogen, argon or carbon dioxide, closes sampling valve 2, temperature and pressure reducing device 5, opens purging valve 13, The purge time is 5-10 minutes. When the oxygen concentration detected by the analyzer is zero, the purge is completed. After confirming the selection of purge gas, a corre...

specific Embodiment approach 3

[0037] Specific implementation mode three: combination figure 1 Describe this embodiment, a method for measuring impurities in a supercritical carbon dioxide boiler in this embodiment. The pressure setting value of the working fluid is 0.2-0.5MPa, and the temperature setting value of the working fluid is 23-25°C.

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Abstract

The invention relates to a device and method for measuring impurities in a working medium of a supercritical carbon dioxide boiler, belongs to the technical field of boiler working medium measurement, and solves the problems that the development time of an emerging supercritical CO2 boiler technology is short, and a quality evaluation system of the emerging supercritical CO2 boiler technology is blank at home and abroad. The device comprises a sampling valve, a flowmeter, a first particle filter, a temperature and pressure reducing device, a pressure gauge, a temperature sensor, a second particle filter, an analyzer and a tail end pump which are connected in sequence. Impurities in the supercritical carbon dioxide Brayton cycle system of power cycle can be measured, and the problem that the quality system is blank at home and abroad is solved.

Description

technical field [0001] The invention relates to a supercritical carbon dioxide boiler working fluid measuring device and a method thereof, belonging to the technical field of boiler working fluid measurement. Background technique [0002] Supercritical CO 2 There are major differences in the working fluid of boilers compared with traditional steam boilers, so supercritical CO 2 Boilers need a new quality evaluation technology system in terms of material performance, design and manufacturing inspection, operation monitoring, commissioning and start-up. Boilers with water as the medium have strict standards for the quality of the working fluid during operation, and there are restrictions on the pH value of the water, the type and content of impurities, and low-quality working fluid will affect the operating performance of the entire unit, and even threaten Safe Production. [0003] Supercritical carbon dioxide Brayton cycle system as a new power cycle, CO 2 The purity of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N5/00G01N23/20G01N23/2206G01N23/2251
CPCG01N33/0004G01N5/00G01N23/2206G01N23/2251G01N23/20
Inventor 谢敏康达左国华岳亮武勇王凤君赵广播
Owner HARBIN ELECTRIC POWER GENERATION EQUIP NAT ENG RES CENT CO LTD
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