Post on 19-Jan-2018
description
transcript
Solvent machine cleaning -
Risk analysis
1/22L.Bardo - PH-CMX 04 December 2015
Content
1. Description
Equipment & Location
Vertrel XF
2. Continuous preventive and protective measures
3. Critical situations – Risk Analysis
2/22
3/22
DESC
RIPT
ION
Equipment & Location
4/22
DESC
RIPT
ION
VERTREL XF
Technical measures
5/22
CON
TIN
UO
US
PREV
ENTI
VE A
ND
CORR
ECTI
VE M
EASU
RES - Adapt the ventilation
Cavern Volume = 2000 m3 air. Only fresh air pulsed : Flow rate= 10 000 m3/hour – (the air is warmed up)
+ “Brassage” = 30 000 m3/hour pulsing
= 40 000 m3/hour pulsing
Natural extraction through the pit Air renewed every 12 minutes – 5 renewal/hour
In case of emergency: Extraction (“désenfumage”) 20 000 m3/hour – test will be drawn up by Frederic Juban and he will also give an explanation on how to activate the system to CMS collaborators (To be completed: 16 5000, Antonio, Maf, Sandro,) -> to be planned
Install aerolic connection on the “ desenfumage” system to collect the vapours at the source-> to be done by EN-CV
If some areas seems not to be properly ventilated, extractors can be added –> extractors are ordered
Technical measures
6/22
CON
TIN
UO
US
PREV
ENTI
VE A
ND
CORR
ECTI
VE M
EASU
RES
- Portable ODH always worn by personnel intervening in USC55 and UXC55 -> the ODH detector triggered in presence of VERTREL XF
- Move one of the two ODH sensors located under the cold box -> in discussion
- Retention tank under the condenser -> check if the CMS retention tank are big enough
- Retention tank included in the solvent machine -> retention > 1m3 once installed
- CO2 Fire extinguishers -> check that a sufficient amount of fire extinguisher are present on site.
- Obstructing plate -> Ordered
- Absorption kit already in USC55 level -2 S3 -> check if it is compatible with the product used
- Mobile shower -> to be ordered? + Retention for rinsing water
- Rinse eye already in USC55 level -2 S3 inside the absorption kit -> keep the absorption cabinet open
Organisational measures
7/22
CON
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UO
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PREV
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VE A
ND
CORR
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EASU
RES
- Fire brigade will be informed about the intervention and the risks present (provide the product MSDS) -> organise a visit
- Access limited -> put barriers level-1 and level-2 with panel indicating the reason, duration, contact person
- Check if shifters will be present during nights and weekends. If no check with the Fire Brigade if they can patrol the area.
Documentation
8/22
CON
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UO
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PREV
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EASU
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- MSDS close to the tank
- Tank identified with the name of the product and pictograms
- Instruction what to do in case of spill -> to be adapted
- Instruction what to do in case of projection -> already existing
Training
9/22
CON
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ND
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EASU
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- All persons intervening have followed the appropriate safety trainings and have the access to work in the USC55 cavern -> Email sent
- Specific training on site -> organise a Safety briefing for people intervening to get familiar with the premises and safety equipment and procedure
- Chemical awareness on SIR online will be followed by all people intervening
- List among the people intervening which one are First-aider -> list of people intervening
- List among the people intervening which one followed the fire extinguisher training courses -> list of people intervening
- At least 1 chemist will always be on site during working hours
Scenarios
10/22
CRIT
ICAL
SIT
UATI
ON
S
1. Solvent Machine Leak in USC55 – level -2- S3
2. Solvent Machine transport in PM54 lift
3. Leak during the disconnection of the solvent Machine from the cold box
4. Small like of a pipe/equipment during the running
5. Power cut
Thank you for your attention