프로세스 분석

역삼투압 시스템

Reverse Osmosis Systems (RO)

Reverse osmosis (RO) systems are used in a wide range of industrial applications for water treatment. Reverse osmosis not only filters dissolved salts from the water, but also removes contaminants and even nanoparticles (bacteria and viruses). The process is used to derive ultrapure water for power plants and pharmaceutical production, as well as for treating potable water and for desalination.

에너지

Keyfacts Application

Sector

Reverse Osmosis Systems

Application

3 Applications

pH Loop to check permeate quality
Cond Loop to check on module leakage
ORP loop to check concentrated water

Measured Parameter

pH, Cond and ORP

Key Requirements

Inline measurement of pH value, ORP and conductivity

Measuring in ultrapure and concentrated Water

Application Description

In a power plant, the reverse osmosis system is used to produce the boiler feed water for steam production. The schematic shows of a typical boiler feedwater system based on RO technology. pH, ORP and conductivity need to be monitored after each RO step and in each RO train in the main header.

Requirements of Application

Monitoring reverse osmosis systems requires inline measurement of the pH value, ORP and conductivity. Adding a variety of chemicals during the process prevents organic or inorganic deposits from building up on the osmosis membrane. Imprecise dosing can lead to membrane damage and biological growth as well. As a consequence, systems must be shut down and cleaned extensively. The ability to measure micro conductivity values and the setpoint deviation of ORP and pH values is a key prerequisite for extending membrane service life and saving the cost of premature replacement The amount of chemicals such as chlorine and sodium bisulfite used can be significantly reduced when conductivity, pH and ORP are precisely recorded.

Why Knick ?
Knick’s conductivity sensor SE604 is the only sensor with removable outer electrodes for easy cleaning and handling. The recommended pH sensor SE558 has an extra electrolyte reservoir for accurate and stable measurements in samples with low conductivity. Fullest flexibility with Knick’s transmitters (e.g. Stratos Multi): one system for all measurement points with flexible parameter configuration.

Matching Products

SE558 pH Sensor | VP | 120 mm | Ex | For ultrapure water, water and analytical chemistry

제품 번호:

SE558X/1-NVPN

SE604 2-Electrode Conductivity Sensor | 7-Pole | Measuring range from 1 nS/cm to 1000 μS/cm

제품 번호:

SE604

SE565 ORP Sensor | Memosens | 120 mm | Ex | For hygienic processes and sterile applications

제품 번호:

SE565X/1-NMSN

ARF201 Flow-Through Fitting | PP-H | One sensor

제품 번호:

ARF201

ARF200 Flow-Through Fitting | Stainless steel or Hastelloy C22 | One sensor | Process connection via cutting ring coupling

제품 번호:

ARF200

Stratos Multi E461N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel |PROFINET | 2x 4…20 mA Outputs

제품 번호:

E461N

Related Industries and Applications

에너지

발전소에서는 여러 공정에서 증기 생성, 냉각 및 연도 가스 세정 등 매우 다양한 용도로 물이 사용됩니다.

이온 교환기 시스템

Measuring of pH, dissolved oxygen and conductivity in boiler feed water, steam and condensate in combined cycle gas turbine in power plants.

보일러 공급수 회로

Measuring of pH, dissolved oxygen and conductivity as the essential parameters in boiler feed water circuits. The challenge of this application is the low ion concentration.

냉각수 시스템

Cooling towers are used in a range of industrial sectors for diverting process heat from cooling circuits. Mineral deposits and corrosion reduce efficiency and lead to the premature wear of system components.

증기 발생기 모니터링

Since steam generator functions are critical to applications and their downtime or replacement is extremely cost intensive, it is important to avoid damage due to wear...

연도 가스 탈황

Measuring of pH in pre-Scrubber, in neutralization and in lime scrubber within the flue gas desulfurization process in power plants.

수처리 설비

Measuring of pH, dissolved oxygen and ORP in different applications while Water Treatment process of Power Plants’ Wastewater.

가스 및 증기 터빈 발전소

보일러 급수, 증기 및 응축수에서의 측정

Power Industry Brochure

Overview of energy-specific applications and product solutions

Download now

Blog Articles on this Subject

2월 2024

Process Analytics

Uniclean700, Launch

Uniclean 700 Series - Modular control system for automated sensor cleaning

With the Uniclean 700 series, Knick is introducing a modular control system, that can be installed very quickly and cost-effectively as a flexible entry-level solution for automated sensor cleaning.

12월 2023

Company

|

Interface Technology

|

Process Analytics

Knick Austria - direct customer contact in Austria from 2024

Reorganization of sales in Austria and new contacts in the field of process analytics and interface technology

4월 2023

Process Analytics

Launch, Fitting, WA111

Robust WA111 Retractable Fitting Made of Plastic for Highly Corrosive Operating Conditions

The plastic WA111 retractable fitting is a robust and cost-effective solution for corrosive processes and environments. It is equipped with a secure lock function and multiple nozzles for thorough sensor cleaning.

4월 2023

Process Analytics

Launch, Fitting, WA155

Successful joint project : Knick developed the special Ceramat WA 155 retractable fitting for optical probes from SOPAT

In cooperation with SOPAT, Knick developed a special Ceramat fitting for optical probes for automatic cleaning in fouling processes.

4월 2023

Process Analytics

Conductivity, Phamacy, pH

pH and conductivity measurement in vaccine production

Pharmaceutical contract manufacturer relies on Knick's transmitters for modular production plants for Covid-19 vaccines.

4월 2023

Process Analytics

Conductivity, Sensor, SE625

Sturdy 2-Electrodes Conductivity Sensor SE625 with Coaxial Electrodes made of Titanium

The SE625 ensures reliable and accurate determination of the conductivity of ultrapure water in the semiconductor industry.

1월 2023

Process Analytics

ARD75

Sensor Adapter with Lock Function Enables Safe and Thorough Cleaning

Sensor adapter with locking gate for safety and thorough cleaning of sensors in the immersion fitting ARD75 without the need

11월 2022

Process Analytics

Protos II 4400, Module

Up to six Sensors on one Transmitter Protos II 4400 via Modul MSU4400-180

Users can now connect up to six Memosens sensors simultaneously.

8월 2022

Process Analytics

Achema, Exhibition

ACHEMA 2022 - Knick at the world forum for the process industry

In August 2022, the international process industry met at the ACHEMA. Knick presented the cCare system and industrial applications in a new concept.

6월 2022

Process Analytics

pH, Sensor, SE555, ORP

Combined pH- and ORP-Sensor SE555X/*-AMSN

Combined pH and ORP measurement in one sensor SE555 saves place and equipment costs for demanding requirements in the chemical industry, the food sector and for hygienic applications.

4월 2022

Process Analytics

MemoTrans

MemoTrans MT201N: Memosens 센서용 초소형 트랜스미터

새로운 초소형 MemoTrans MT201 트랜스미터는 피팅으로 Memosens 센서에 직접 연결하여 4-20 mA HART 프로토콜을 통해 통신합니다. pH, ORP, 산소 및 전도도 센서용 공간 절약형 솔루션입니다.

2월 2022

Process Analytics

Stratos Multi, Transmitter

Profinet을 채택한 새로운 트랜스미터 Stratos Multi E461N

새로운 멀티 파라미터 트랜스미터 Stratos Multi E461N의 Profinet 인터페이스는 현장 레벨에서 시작하여 가장 많이 사용되는 공정 제어 시스템에 이르기까지 공정 파라미터와 예방적 유지 보수에 대한 연속적인 통신을 가능하게 합니다.

2월 2022

Process Analytics

Protos II 4400, Stratos Multi, Software, ProgaLog

ProgaLog 4000 PC - 파라미터 설정 도구

단 하나의 파라미터 설정 도구 ProgaLog 4000만 사용하여 모듈식으로 설정 가능한 모든 트랜스미터 Stratos Multi 및 Protos II 4400을 오프라인으로 편리하게 파라미터를 설정하고, 설정을 저장하며, 다른 트랜스미터용으로 복제하고, 감사를 위해 문서화할 수 있습니다.

1월 2022

Process Analytics

Memosens

Memosens 2.0: Evolution of digital data transfer

As one of the two initiators of Memosens, Knick is constantly developing the technology.

11월 2021

Process Analytics

Conductivity, Sensor, Ex, SE656, SE655

SE655X 디지털 및 SE656X 디지털 - 방폭 인증을 받은 디지털 전도도 센서

Memosens 프로토콜을 채택한 전도도 센서 SE655X 디지털 및 SE656X 디지털은 이제 방폭 인증을 받은 제품으로 사용할 수 있습니다. 이 센서들은 재질과 설계로 인해 특히 화학, 제지 및 펄프 산업과 산업 폐수 모니터링에 적합합니다.

11월 2021

Process Analytics

Exhibition, Switzerland, Ilmac

ILMAC 2021 in Basel - Trade Show Review by Knick Schweiz AG

Knick Schweiz AG exhibited at ILMAC in Basel and gives a brief review of what it's like to have finally met customers at the show again.

10월 2021

Process Analytics

Stratos Multi, Transmitter, Ex

Stratos Multi E401X - 방폭 지역용 멀티 파라미터 트랜스미터

신제품 Stratos Multi E401X의 경우 구역 분리가 트랜스미터에서 바로 이루어지기 때문에 설치 시 별도로 특별한 방폭 액세서리가 필요하지 않습니다.

5월 2021

Process Analytics

Transmitters, Stratos Multi

EtherNet/IP에서 Stratos Multi E471을 사용한 공정의 최적화

EtherNet/IP communication protocol allows the transmitter to be easily integrated into Industrial Ethernet networks as PCS.

5월 2021

Process Analytics

Launch, Conductivity, Sensor, SE656

새 디지털 전도도 센서 SE656N

New toroidal Digital Conductivity Sensor with a large measuring range and consisting of PFA for using in aggressive media

3월 2021

Process Analytics

Protos II 4400, Profinet

Transmitter for the process industry with PROFINET module

The PROFINET industrial Ethernet standard is becoming an increasingly important aspect of process engineering in the “Industry 4.0” environment.

7월 2020

Process Analytics

Launch, Fitting, ARD170

(현장에서) 휴대용으로 사용할 수 있는 고품질의 침적식 피팅

저희 Knick Elektronische Messgeräte GmbH & Co. KG는 pH, 전도도 및 용존 산소의 휴대용 측정에 사용할 수 있는 침적식 피팅 ARD 170을 출시합니다. 제품을 설계 시, 간단하고 유연한 취급이 가능하도록 심혈을 기울였습니다.

7월 2020

Process Analytics

Fitting, ARD50, ARD75

방폭 지역에서의 사용을 위한 전기 전도성이 있는 버전의

저희 Knick Elektronische Messgeräte GmbH & Co. KG는 전기 전도성이 있는 버전(EL)의 침적식 피팅 ARD 50 EL 및 ARD 75 EL의 출시를 통해 액상 분석용 피팅의 포트폴리오를 확장했습니다. 이 2개의 산업용 피팅은 모듈식 구조로 되어있어 응용 분야에 맞는 센서를 선택할 수 있는 폭이 넓습니다.

4월 2020

Process Analytics

Launch, Transmitters, Stratos Multi

액상 분석을 위한 새로운 지능형 멀티 파라미터 트랜스미터

저희 Knick社에서는 Stratos Multi를 통해 Stratos 분석 측정 기기의의 차세대 제품을 소개합니다. Stratos Multi는 지능적인 진단 관리를 제공해 드립니다. 일단 시중에 판매되고 있는 거의 모든 pH/ORP, 전도도 및 용존 산소 센서를 단 하나의 트랜스미터를 통해 확인할 수 있습니다.

2월 2018

Process Analytics

Fitting, Sensor

How to get the sensor into the process

Sensors as the direct interface to the process must be exactly matched to the chemistry of the measured medium and to the prevailing pressure and temperature conditions.

4월 2017

Process Analytics

MemoRail Modbus

Powerful compact analyzer boosts performance while reducing costs

It has long been common practice when taking pH/ORP, conductivity, and oxygen measurements that a fixed analyzer be mounted near the sensor. The analyzer serves several purposes.