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Cycle dynamic checking system for dissolved oxygen meter

A dynamic calibration and cyclical technology, applied in the direction of material inspection products, test water, etc., can solve the problems of a large number of water samples, waste, etc., to achieve the effect of reducing waste and improving reliability

Pending Publication Date: 2019-02-15
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are the following problems in the long-term assessment test: the standard dissolved oxygen water samples used are generally discharged directly after passing through the standard meter and the meter to be tested due to the change of the dissolved oxygen content, thus requiring a large number of water samples and causing waste

Method used

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  • Cycle dynamic checking system for dissolved oxygen meter
  • Cycle dynamic checking system for dissolved oxygen meter
  • Cycle dynamic checking system for dissolved oxygen meter

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Embodiment

[0052] see Figure 1~4 As shown, the embodiment of the present invention provides a cyclic dynamic calibration system for dissolved oxygen meters. The calibration system includes a hypoxic water circuit for providing hypoxic water, a saturated oxygen water circuit for providing saturated oxygen water, A mixer 3 for mixing the hypoxic water and the saturated oxygen water, a verification circuit for verifying the dissolved oxygen content of the mixed water sample, and a verification circuit for transporting the mixed water sample in the verification circuit To the circulation loop in the saturated oxygen water loop and the hypoxic water loop.

[0053]The embodiment of the present invention provides a circulating dynamic calibration system for dissolved oxygen meters, which recycles the calibration water samples, does not need to add water samples in the long-term assessment test, and realizes the recycling of the calibration water samples, thereby providing a solution for the di...

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Abstract

The invention discloses a cycle dynamic checking system for a dissolved oxygen meter, and is characterized in that: the checking system comprises: a low oxygen water loop for providing low oxygen water; a saturated oxygen water loop for providing saturated oxygen water; a mixer for mixing the low oxygen water with the saturated oxygen water; a checking loop for checking the dissolved oxygen content of the mixed water sample; and a cycling loop for conveying the mixed water sample in the checking loop into the saturated oxygen water loop and the low oxygen water loop. According to the cycle dynamic checking system for a dissolved oxygen meter, the checked water sample is recycled, the water sample is not needed to be added in a long-term examination test, the checked water sample recyclingis realized, therefore a foundation is laid for a long-term stable operation of the dissolved oxygen meter.

Description

technical field [0001] The invention relates to the field of calibration of water quality instruments, in particular to a circulating dynamic calibration system for dissolved oxygen meters. Background technique [0002] The presence of dissolved oxygen in water will increase the corrosion of structural materials and reduce their strength. Especially when Cl － When present, the presence of dissolved oxygen may induce stress corrosion cracking of Fe-Cr-Ni alloys. In order to ensure the safety and reliability of devices and equipment, many power plant boilers and ship power plants use the method of removing dissolved oxygen in water to reduce the corrosion of structural materials, especially to avoid stress corrosion cracking of structural materials. The dissolved oxygen meter undertakes the task of monitoring the dissolved oxygen content in water, and is an important equipment to ensure the stable operation of power plant boilers and ship power plants. [0003] Due to its o...

Claims

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Application Information

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IPC IPC(8): G01N33/18
CPCG01N33/18
Inventor 刘小杰王钊赵宏博王睿
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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