Copyright (c) 2012 FLOWTECH Co., Ltd. All Rights Reserved. 1

LEADING TECHNOLOGY

FLOWTECH CO., Ltd.

Sang Kim Managing Director

2005. 07 Established FLOWTECH CO,. LTD 2006. 12 Acquired a Certification of ISO 9001 & 14001 2007. 05 Acquired a Venture Enterprise Certification 2007. 05 Selected as PM(Patent Map) company by the InCheon chamber of commerce & Industry Knowledge Asset Center 2008. 08 Acquired an INNO-BIZ certificate 2009. 01 Acquired a venture ethical management certificate, Registered officially Company R&D center 2009. 07 Selected as promising SME by InCheon City

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1. Corporation profile

1. Heritage

http://www.flowtech21.co.kr

2010. 08 Completed the biggest Eco-control System in the world(PaJu Cogeneration Plant, 180m³] 2011. 06 Accepted the business of city of eco innovation by Incheon [2011 Publish the sustainable report] 2011. 10 Selected a VISION Company and Excellent Quality products by InCheon city 2012. 04 Performance certified by Small Business Administration, Green Technology certified & Procurement Excellent Product by Ministry of Land, Transport & Maritime Affairs

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1. Corporation profile

1. Heritage

http://www.flowtech21.co.kr

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2. Necessity of peristaltic pump Surge Protection system

http://www.flowtech21.co.kr

1. Lack of the reliability as a safety device(continually using

20 year old technology)

3. Need to reduce the unstable waiting time after the pump

operation.

2. Need the high efficiency because of excessive consumption

energy

4. Meet the demand of stability by increasing a plant.

Develop the type of high reliability & Energy Saving Surge(Water Hammer) Protection system

3-1. Definition of Water Hammer & Occurrence factor

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Beginning of stationary flow state in

piping system

Node demands - reservoir and tank levels

Node heads - pipe flows Pump heads and flows

Change of flow

Valve opening and closing Change in pump speed

Pump trip Change in flow demand

Hydrant opening or closing Change in reservoir head

Change of condition by transient

Phenomenon Pressure and flow variations

Effects of cavitation Effects of surge control

The final goal in the analysis of pipe flow and Water Hammer system is

stationary flow state

초기 정상류 ------- 과도한 압력변화 ------ 최종 안정화

Definition of Water Hammer When a valve in piping is opened or closed suddenly or when there is a drastic fluctuation in the flow upon operating or stopping the pump, the pressure fluctuates, and the flow also changes abruptly which is called Water Hammer phenomenon.

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3-2. Cause of Shockwave1 : Pump Trip by black out

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Water Column Separation reaggregates,it makes shock such as noise and vibration

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In case of black-out/artificial pump sudden stop, it will make column separation of outlet pump due to procedure of fluid inertial force.

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3-3. Damage by Water Hammer

Due to pressure rising in the pipeline, it damages facilities such as pumps, valves,pipes and etc.

Vapor cavities causes collapse or heavy shock wave generated in the course of column separation and subsequent causes break of the pipeline.

A cause of vibration and noise.

Due to abnormal pressure wave, it lose control of pressure control equipment including automatic control unit.

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3-4. Damage by Water hammer

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3-5. Flow in pipeline by pump trip

Steady state

RUN

Normal operation

Pump trip

Flow reversal

Collapse Vapor cavity

STOP

Pressure Spike STOP

Occurrence of vapor cavity due to low pressure

Growth of vapor cavity

STOP

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3-6. Surge Protection System Types

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3-7. Features of Water Hammer Protection system Types

ITEM TYPE

Control properties

COMPONENT

FEATURES EXTERNAL POLLUTANT UP SURGE DOWN

SURGE SURGE

CONTROL

Stand Pipe Flowed in Controllable Controllable Passive Pipe

Simple design, needed to install higher than H.G.L. Fluid is exposed to air, which may result in smell leakage in case of sewage water and cause health risk for water supply

Feed Tank Flowed in Uncontrollable Controllable Passive Open Tank

Prevents column separation due to inflow under negative pressure. Installation place is limited as it is fixed on the tip of the pipeline.

Air Valve (Vacuum Breaker)

Flowed in Uncontrollable Controllable Passive Air Valve

(Vacuum Breaker)

Handles negative pressure by letting in air, when negative pressure works in the pipeline. Often installed on the pipeline, making maintenance hard. Pollutants may flow in with air.

Surge Valve Blocked Controllable

Uncontrollable

Passive Control Valve

Control only follows water hammer, and surge control at the time of system failure may be useless.

Air Chamber Blocked Controllable Controllable Active

Pressure vessel Compressor, auto

Control panel

Expensive, positive measure against up/down surge, possible to install in/out doors, and clean by using a closed tank.

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4. Structure map of Surge Protection

• Consist of Air-Chamber, Compressor and Control-panel(include a sensor)

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5. Key Technology - Summary of patent

`

Real level =sensor detection

LT

50%

Real level value : 50% Level sensor detection: 50%

Off (60%)

On (40%)

On (20%)

Off (80%)

Real level Sensor detection

LT

30%

Real level value: 50% Level sensor detection : 30%

Off (60%)

On (40%)

On (20%)

Pressure tank

Level Transmitter

Level Switch 4ea

Off (80%)

Key Technology # 1 Technology of water level control by using the level switch & level transmitter.

Emergency operate after

find problem by self

Prevent the problem with property damage

and damage of humans by water logging

http://www.flowtech21.co.kr - 12 -

`

5-2. Key Technology - summary of patent

http://www.flowtech21.co.kr

Key Technology #2 Technology of water level control by using the Multiple level transmitter.

Emergency operating after

find a problem by self

Prevent the problem from property damage &

humans by water logging in Mechanical Room

Sensor detection Real level

Real level value : 50% Level sensor detection: 49~52%

LT1

49%

LT2

50%

LT3

52%

Sensor detection Real level

Real level value : 50% Level sensor detection: 49~60%

Pressure tank

Level Transmitter

LT1

49%

LT2

50%

LT3

60%

normal LT3 error (LS1-2=1, LS2-3=32 LS3-1=3 (LS1-2=1, LS2-3=10, LS3-1=11

no problem with 5% mistake! Except the LS3 that common with the LT1, LT2, and control by average values withLS1,2,3) and control by average values with LS1,2)

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5-3a. Key Technology - Summary of patent

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Key Technology #3 – Power-saving and high reliability in controlling(Air chamber type)

Minimize the

unnecessary

operation of

ventilation

Save the energy &

operation expenses

Relief V/V

Storage Tank

Supply By-pass V/V

Pump

Compressor

Filter

S1 S2

C.V

Discharged Gas Storage Tank

p/s

C.V

s3

PRV 2~10K

2K

Duplex Breaking System

Eco-upper limit (pump stop)

Eco-Lower limit (pump stop)

Duplex Breaking System (lower limit)

Duplex Breaking System (Upper limit)

N.W.L 10kg/㎠.G Normal upper limit(pump operation)

Normal Lower(pump operation)

Traditional water level control method and water level limit

As a new conception of water level control method which is interlocked with pump, it dose not need to rearrange the water level because there is no influence in pipe line when water level is became low after pump stopping. However it can lessens the pressure air & air compressor requirements when the pump is operate as safety device.

Energy-saving through the controlling in connection with the pump

A B C D E Save-energy and skip the dangerous D by operating A~B~E (Three-step) from A~E(Five-step).

10k 6.5k

10k 10k 6.5k

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5-3b. Key Technology - Summary of Patent

http://www.flowtech21.co.kr

Key Technology #3 – Enhance Reliability of Surge Protection System & Power-saving Technology

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Traditional method :

Take 5~20min Apply the new technology :

Minimize the 20 sec

5~20min

Developed head actual head friction loss radiation pressure

Pump Head pressure

operating

Stopping Developed head

Volume of air/ volume of tank

Pressure air water

Pump operating stopping stopping operating stopping gas

6. Performance Improvement effect

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34kW 300sec

none 3kW 20sec

Exist

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[saving energy] [Reduce the waiting time]

단위 : kWh 단위 : sec

7. Ripple effect of technical development

1. Energy saving and anti-pollution

◎ Energy saving 91.2%(before 34kWh/19h, after 3.0kWh/19h) ◎ Increase the competitiveness by saving energy

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2. Ensure safety with high reliability

◎ Keep the target water level, secure a second alternative+ normal operating even the sensor is failure ◎ Reduce the waiting time by safety line from 300sec to 20sec (Improve 93%)

Division Nonperistaltic

time of target water level

Peristaltic time of target water

level

time (s) 300 20

Division Nonperistaltic Peristaltic

19 hour 34 3

0

100

200

300

펌프비연동 펌프연동

300sec

20sec

0

10

20

30

40

펌프비연동 펌프연동

34

3

Nonperistaltic periataltic nonperistaltic peristaltic

Copyright (c) 2013 FLOWTECH Co., Ltd. All Rights Reserved.

Project Q-CHAM II Ethylene Derivatives

Shoaiba II CCPP O2 Resort Multifunctional Administrative City Waterworks

Owner Qatar Chemical Company LTD.

Saudi Electricity Company Taebaek City Deajeon City

Contractor

Daewoo E&C Daelim E&C Kolon Global Co.,Ltd

Location Mesaieed City, Qatar Jeddah, KSA Taebaek, Korea Deajeon, Korea

Spec’

0.5㎥ x 16bar x 2sets 0.6㎥ x 16bar x 14sets

0.6㎥ x 16bar x 4sets 0.3㎥ x 16bar x 3sets

3㎥ x 40bar x 1set 2.5㎥ x 40bar x 1set

80㎥ x 12bar x 1set (40㎥ x 2ea)

Major Reference of Surge Protection System

19

8. References

Copyright (c) 2013 FLOWTECH Co., Ltd. All Rights Reserved.

Project Gumi Filtration Plant

Youngsan River #1-2 Hoiya Filtration Plant Pungnab Waterintake

Owner K-Water KRCC Ulsan City Incheon City

Contractor

Samsung E&C Hyundai E&C

Location Gumi, Korea Muan, Korea Ulsan, Korea Seoul, Korea

Spec’

20㎥ x 16bar x 1set 80㎥ x 16bar x 1set (40㎥ x 2ea)

60㎥ x 16bar x 1set (30㎥ x 2ea)

60㎥ x 10bar x 1set (20㎥ x 3ea)

Major Reference of Surge Protection System

20

8. References

Copyright (c) 2012 FLOWTECH Co., Ltd. All Rights Reserved.

Office. Laboratory ; B-706, Bupyung Lionsvalley #425, Chungchun-Dong Bupyung-Gu Incheon-City, South Korea Tel. 82-32-623-7566 Fax. 82-32-623-6636

LEADING TECHNOLOGY

FLOWTECH CO., LTD.