Download - CIP Latest Technologies, Typical Errors and CIP Assurance...PI PI CIP Return CIP Return TI FI CI TI FI CI CLEANING-IN-PLACE (CIP) INSTALLATION VLB Berlin, D. Bilge CBC 2016 - Philadelphia

■■ VLB Berlin, D. Bilge ■■ ■■■ CBC 2016 - Philadelphia ■■■

CIP – Latest Technologies, Typical Errors and CIP Assurance


Influences on Cleaning (Sinner)

Source: Natursteinpflege24.de

Action

Time

Temperature

Chemicals


Applied Agents

• Caustic cleaner (NaOH)

• Combined cleaner (NaOH + detergent or hypochlorite)

• Phosphoric acid or nitric acid (up to 5 %), better for

environment: lactic acid or citric acid

• Peracetic acid or hydrogen peroxide, chlorine

dioxide, salicylic acid, etc. as disinfectant


Detergents

Surfactants

decrease of surface tension

lower adhesion of dirt to surfaces

better swelling of dirt

possibility of wetting gaps and cracks


Penetration Behaviour of Liquids with different Surface Tensions

water 72 mN/m

milk 52 mN/m

beer 43 mN/m

quats 24...34 mN/m

microorganism


Disinfectants

• type and degree of contamination

• efficiency of disinfectant

• temperature

• nature and condition of the surface

• time

A proper disinfection is dependent on:

Disinfectants are chemical compounds which

are able to inactivate microorganisms due to

different modes of action.


Disinfectant Mode of Action Features Structure

Peroxides e.g. peracetic acid

Oxidation effect Sensitive to organic soilsand copper, attacsrubber,

Aldehydes Reaction with carbonyl-,amino-, hydroxyl- andsulfhydryl groups of cellproteins

Sensitive to organicsoils, limkted action onGram-neg. MO

Salicylic Acid Attacs membranes, replacespantothenic acid, no CoAcan be synthesized

Stable, insensitiveagainst organics, oftenused with acids

MonobromaticAcid

Reaction with SH-groups ofenzyme proteins

Stable, insensitiveagainst organics, oftenused with acids

Quats Destruction of semi-permeability of cell wall bylowering the charge andsurface tension

Non-corrosive; stable athigh temperatures

Guanidines Similar to Quats Deposits at pH 12; nosurface activity

Hypochlorite Oxidation effect Sensitive to org. soils; instable at high temp.

NaOCl

Iodophores Oxidation effect Problematic with copperand rubber

N R

R

R

R1

1

2

1 N

N

R

R

R

N

R1

2

1

2

X X X

a b c

+ -

+

-+

-

CH3 C

O

O OH

OC

H

H

C C

O

OH

H

Br

H

C NN

NHR

R1

R2

R3

http://upload.wikimedia.org/wikipedia/commons/b/b5/Salicylic_Acid.svg


Disinfectants - Oxidants

Peracetic acid; H2O2:

• Release of O-radicals (nascent oxygen)

reaction with proteins and lipids of cell wall

penetration of cell wall and denaturation of

proteins

• Mostly in final rinsing water

• Also applied as cleaning booster (cracking)


Wort Cooler – Cracking


Deep Cleaning – Once a Year


Sodium Hypochlorite

Mode of action: NaOCl NaCl + O

Besides disinfection very good for periodic intensive deep cleaning

To avoid corrosion (!):

• pH of the cleaning solution > 11 (always in NaOH)

• Concentration not above 5 %

• Temperature not above 65 °C resp. 149 °F

• Maximum contact time 1 hour

• Unsuitable for rubber-containing gasket materials


Disinfectants - Chlorine Dioxide

4 HCL + 5 NaClO2 4 ClO2 + 5 NaCl + 2 H2O

• Application in water disinfection

brewing water

bottle washer (cold water zone)

bottle rinser (after crowning)

belt lubricants

• Organic residuals weaken the efficiency

http://de.wikipedia.org/w/index.php?title=Datei:Chlorine_dioxide.svg&filetimestamp=20090107210029


Source: GrundfossSource: Dr. Wolf GmbH

http://de.wikipedia.org/w/index.php?title=Datei:Chlorine_dioxide.svg&filetimestamp=20090107210029

http://www.haustechnikdialog.de/News/Images.aspx?ID=7692&Number=1


CIP-PLANTS


Disinfectant

concentrate

LI

TI

LI

LI

LI

TI

LI

LI

LI

TI

LI

LI

LI

TI

LI

LI

LI

TI

LI

LI

Water

Acid

concentrate

Caustic soda

concentrate

Freshwater

Dis-infectant

Acid Hotcaustic

Returnwater

CI CI CI

Steam

Condensate

Steam

Condensate

TICTIC

Steam

Condensate

Steam

Condensate

CIP

to plant

CIP

to plant

TIC

TIC

TI

TI

PI

PI

CIP

Return

CIP

Return

CITI FI

CITI FI

CLEANING-IN-PLACE (CIP) INSTALLATION


• Cleaning times

• Flow velocities

• Conductivities

• Temperatures

• Cleaning of safety fittings and mountings

• Cleaning of sample drawers

• Frequency of jet cleaners if existent

• Checking the change of medias

Controlling CIP - Operations


CIP – Control System


Mechanical Impact in CIP Systems


Spraying Equipment for Tanks

Spray Ball Jet Cleaner


Atmospheric

pressure

To

tal p

ressu

re liq

uid

Course of pressure in pipe

Pre

ssu

re

of p

um

p

Pressure Loss in Pipes


Pressure and Cleaning Effect

Highest mechanical effect

In sump

mechanical effect low

Too low pressure no

mechanical Effect no

sufficient film at surface

Sufficient flow rate results in

a consistent liquid film on

the walls surface

Too high pressure rebound


Consistent Showering of the

Vessel Wall *

* Zürcher, Dresdner Brauertag 2003

for a falling film thickness 1 mm turbulent flow

set point value: 25 – 30 l / (m * min)

showering [ l /(m * min) ] =

flow rate [ hl / h ] * 100 / 60 / circumference [ m ]

Flow Showering

hl/h l/m x min

80 11.7

171 25.0

200 29.2


Influences of CO2 on the Process

http://auto.freenet.de/pictureshow/magazin/dossier/co2werte-in-der-diskussion_9260_556488_9252_0.html


Tank - CO2 - Removal – Why?

1. Loss of alkalinity by neutralization

2. Risk of vacuum formation

3. Precipitations interfering with the process

4. Pit corrosion (Hypochlorite)


Insufficient CO2-Removal - Carbonates

2 NaOH + CO2 NaHCO3 + H2O

Example: 3000 hl tank filled with 2500 hl

500 hl head space

At pop = 0.6 bar ≈ 80 m3 CO2 = 160 kg CO2

neutralization of 291 kg NaOH possible!


Vacuum II


Carbonate Precipitations – Insufficient CO2-Removal before Caustic Cleaning


Steps

Pre-Cleaning with Caustic-Shot

No pre-rinsing

No de-aeration

Source: Sopura


Steps

1. Shot NaOH


Source: Sopura


Steps

1. Shot NaOH

1. Defined rest


Source: Sopura


Steps

1. Shot NaOH

1. Defined rest

2. Shot NaOH


Source: Sopura


Steps

1. Shot NaOH

1. Defined rest

2. Shot NaOH

2. Defined rest


Source: Sopura


Steps

1. Shot NaOH

1. Defined Rast

2. Shot NaOH

2. Defined rest

3. Shot NaOH


Source: Sopura


Steps

1. Shot NaOH

1. Defined rest

2. Shot NaOH

2. Defined rest

3. Shot NaOH

3. Defined rest


Source: Sopura


Steps

1. Shot NaOH

1. Defined rest

2. Shot NaOH

2. Defined rest

3. Shot NaOH

3. Defined rest

Intermediate rinsing


Source: Sopura


Empty tank

After acid

cleaning

1. Shot 2. Shot

Intermediate

rinsing with fresh

water after shots

3. Shot

Source: Sopura


Spray Shadows


Spray Shadows!

Before Cleaning:

After Cleaning:


Spray Shadows!

Absurd Installations!


Opening the Tank peels the Eyes


Blocked Sprayballs


Wrongly inserted Conus Gasket


ImproperWelding Seams


Improper Welding Seams


Endoscope

• Endoscopy is a minimally invasive diagnostic medical procedure that is used to assess the interior surfaces of an organ by inserting a tube into the body. (Wikipedia)

• Endoscope of the VLB:Pixel: 500 x 582Light sensitiveness: 0.5 LuxObjective: f = 2,3 mm, F = 1,2Picture angle: 120°Light source: 12 white LEDsProtection: waterproof acc. IP 68Temperature range: -10 - 50 °C,Wire with distance marks: Length: 20 mDiameter: 6 mm

Source: Pahl; VLB -FMV

http://en.wikipedia.org/wiki/Minimally_invasive

http://en.wikipedia.org/wiki/Diagnostic

http://en.wikipedia.org/wiki/Medical_procedure

■■ VLB Berlin, D. Bilge ■■ ■■■ CBC 2016 - Philadelphia ■■■Source: Pahl; VLB -FMV


Dead Ends


Placing of no-return Valves


Wrong Position of no-return Valve


Cleaning with closed Connecter Valves


Cleaning with closed Connectors and broken Gaskets

Download - CIP Latest Technologies, Typical Errors and CIP Assurance...PI PI CIP Return CIP Return TI FI CI TI FI CI CLEANING-IN-PLACE (CIP) INSTALLATION VLB Berlin, D. Bilge CBC 2016 - Philadelphia

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