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Ultrapure water PH detection equipment

A technology for testing equipment and ultra-pure water, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., to reduce the consumption of human resources, improve accuracy, and accurately detect PH

Pending Publication Date: 2020-08-11
率氢技术(北京)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few detection instruments for ultrapure water pH in the market, and there are fewer instruments that can detect ultrapure water in a closed environment

Method used

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Embodiment 1

[0067] According to the idea of ​​the technical solution of the above-mentioned specific embodiments, Embodiment 1 of the present invention proposes an ultrapure water pH detection device, including an automatic raw water inlet device, an automatic drainage device, an automatic KCl dosing device, a KCl dissolution device, and a pH detection instrument.

[0068] Add KCl to the test water sample to increase the potential difference between the two electrodes of the pH detector to make it reach the normal measurement range of the pH detector; set up a sample detection pool, and set up a matching automatic water inlet, drainage, and dosing system to realize the equipment The function of automatic sampling detection; the compact layout is adopted for the system components, and the plastic shell is set to improve the appearance of the equipment; the KCl dissolving tank is placed above the equipment shell, so that the KCl dissolving tank drug outlet is higher than the detection pool. ...

Embodiment 2

[0085] According to the ultrapure water pH detection equipment shown in Figure 1(a), Figure 1(b) and Figure 1(c), the water inlet solenoid valve 1, the drain solenoid valve 2, the KCl dosing solenoid valve 3, and the pH detection Instrument 4, KCl dissolution tank 5, sample detection pool 6, water inlet pipe reserved port 7, KCl dissolution tank drug outlet 8, drainage pipe reserved port 9, solenoid valve wiring reserved port 10, detection pool water inlet 11, detection Water outlet 12 of the pool, water inlet 13 for adding medicine to the detection pool, and equipment casing 14.

[0086] Such as figure 2 As shown, the overall working principle of the invention is as follows:

[0087] When detecting the pH of ultrapure water, by adding KCl solution to the water sample, the ion content of the water sample is increased, thereby increasing the potential difference between the two electrodes of the pH detection instrument, making it possible to detect the pH of ultrapure water; ...

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Abstract

The invention discloses ultrapure water PH detection equipment which comprises a water inlet electromagnetic valve, a water drainage electromagnetic valve, a KCl dosing electromagnetic valve, a PH detector, a KCl dissolving tank, a sample detection pool and an equipment shell with an opening. The technical problem of the blank of a PH detector in the field of ultrapure water is effectively filled;by adding a neutral KCl solution into the ultrapure water, the ion content in the water sample is increased; meanwhile, the sealing of the sample detection pool in the detection process of the ultrapure water is ensured as much as possible, so that huge errors generated by the contact between the ultrapure water and air in the detection process are greatly reduced; in the detection process, automatic water feeding, automatic water discharging, automatic detection, automatic cleaning and the like can be achieved, so that the human resource cost is greatly reduced; and meanwhile, the product has the advantages of being neat in appearance, compact in internal structure arrangement, small in occupied area and the like.

Description

technical field [0001] The patent of the invention belongs to the field of water quality detection, and in particular relates to an ultrapure water pH detection device. Background technique [0002] At present, the working principle of the existing pH meter is to put the two electrodes of the pH meter into the same solution together to form a primary battery, and the potential of the primary battery is the algebraic sum of the potential of the glass electrode and the reference electrode. The potential of the reference electrode of the pH meter is stable, so when the temperature remains stable, the potential change of the primary battery composed of the solution and the electrode is only related to the potential of the glass electrode, and the potential of the glass electrode depends on the pH of the solution to be measured Therefore, by measuring the potential difference between the two electrodes, the pH value of the pH solution can be obtained. [0003] The resistivity of...

Claims

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Application Information

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IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 苏战华王晓强苏仲民武扬
Owner 率氢技术(北京)股份有限公司
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