Water Chemistry Measurement Loop Device
Stress corrosion testing is to test materials under the combined effects of stress and corrosion
in a corrosive medium environment.
The sample is corroded by the medium to generate corrosion products. At the same time, the
materials of the experimental kettle fixture, pull rod, etc. will also be slightly corroded, causing
hydration during operation.
The chemistry is constantly changing, and the dissolved oxygen and dissolved hydrogen will
also change. As the test time of the static high temperature autoclave increases, the corrosive
medium phase
The greater the deviation of the medium parameters at the beginning of the test, the greater
the deviation of the test results.
A large amount of circulating water medium ensures the stability of the medium environment in
the experimental kettle to offset the measurement deviation caused by corrosion products on
medium changes.
The water chemistry measurement loop is a laboratory measurement technology that
simulates the actual application conditions of the material, the test medium in the test kettle is
continuously circulated and renewed to make the environmental medium in the kettle stable.
The system realizes the circulation of corrosive media, measurement of chemical parameters,
pressure maintenance in the kettle, medium preheating, ion filtration, impurity filtration , UV
The measurement circulation system consists of a water storage tank, a circulation pump, a
high-pressure pump, a peristaltic pump, a chemical measuring
The measuring loop is tailor-made according to the requirements.
to meet the operating parameters and technical specifications of the simulated media
environment.
The measurement loop system is commonly used in the performance test of materials in the
fields of simulating nuclear power, thermal power, petrochemical, and ocean.
The loop system is made of corrosion-resistant materials, such as stainless steel, titanium,
chemical polymers, etc.
Under high temperature and high pressure conditions, the temperature and pressure of the
water need to be controlled and stabilized. At the same time, the corrosive environment forms
dissolved substances in the circulating water, which need to be purified.
The measurement loops used in the oil and gas fields include H2S (hydrogen sulfide) and C20
(carbon dioxide) gas corrosive media.
Environment, the circuit system provides functions such as vacuuming , inert gas flushing,
experimental gas flushing, pressurization, heating, etc., meeting NACE standards test
requirements.
The measurement loop runs for a long time, especially in high temperature and high pressure
environment, so safety design is very important.
Safety valves (bursting disc type), pressure monitoring alarms, over-temperature alarms and
automatic heating stop, low water level alarms and automatic
Automatically stop the circulation pump and high-pressure pump, the insulation protection of
the heating device, the temperature, pressure, and measurement cycle loop linkage safety
protection, etc.
In the loop system, each control and measurement instrument is equipped with RS485
interface to realize communication with the computer, chemical parameters, gas flow
The measurement control can be directly displayed and set on the computer test software.
Special software developed for measuring the circulation loop system can realize
Display various parameters and measurement data at any time, record and save all data at any
time, control the mass flow opening, and set creeping
The speed of the dynamic pump can be adjusted, and the alarm threshold of each parameter
can be set .
Features:
The medium circulation flow rate is adjustable;
The medium in the kettle circulates fully to offset the influence of corrosive substances on the measured medium ;
Online measurement and control of chemical parameters of the medium;
Ion filtration, microfiber membrane filtration, and ultraviolet irradiation purify the measuring medium;.
The water storage tank balances the dissolved gas concentration;
Over-limit or missing linkage protection for water storage tank, circulation pump, high-pressure pump, pressure, temperature, cooling water, etc.
