ShipownersWorldwide

Pipe in pipe solution

Wärtsilä and Maersk collaborate in developing unique ‘pipe in pipe’ solution to prevent scrubber discharge pipe corrosion

Marpro Group Editorial Team Send an email September 8, 2022
1,339 2 minutes read
Pipe

 

The technology group Wärtsilä and Danish ship operator A.P. Moller – Maersk have provided a means for preventing corrosion in scrubber discharge pipes. The permanent in-pipe solution is designed to solve corrosion problems associated with open-loop scrubber washwater discharge.

The majority of the estimated 5,000 scrubber systems installed across the global fleet are of open-loop configuration. With this system, seawater is used to scrub SOx from the exhaust gas, with the used water then being discharged back to the sea after cleaning.

Under IMO Guidelines, the washwater from exhaust gas cleaning systems, commonly referred to as scrubbers, should have a pH of no less than 6.5. However, in reality the pH of scrubber washwater is typically acidic, prior to being diluted by seawater. This creates the risk of structural corrosion to the discharge pipes.

The risk is particularly high for pipes made of mild steel. In some cases, if the discharge pipes are inadequately protected, severe corrosion can damage the surrounding mild steel hull plates, resulting in water ingress.

The new ‘pipe-in-pipe’ solution allows for the original overboard pipe to remain in situ while a new glass reinforced epoxy (GRE) pipe is inserted into it. No metal cutting or welding is necessary. A SMO steel sleeve is inserted between the new GRE pipe and the existing steel pipe. An adhesive permanently secures the GRE pipe in place. Since this ‘pipe-in-pipe’ solution has a small impact on the internal diameter of the pipe, it is best suited for overboard pipes with a diameter greater than 300 mm.

“This is a long-term solution that can be planned for at any time, even if corrosion has not yet occurred. The component pipes can be prepared and stored either on board or at an engineering facility ready for fitting either during a scheduled drydocking or port-call or, if necessary, whilst afloat and in operation using a cofferdam at a convenient time and location” explained William Winters, Managing Director of Wärtsilä Underwater Services. He further added “This in-operation repair offers substantial overall savings to the ship owner and allows the vessel to stay in service”

“We have noted corrosion incidents occurring on some scrubber equipped vessels and wanted to be proactive in solving the problem,” said Jorn Kahle, Senior Lead Specialist, Maersk. “Additionally, taking a vessel out of service is extremely costly. One of the key driving forces for development of this pipe-in-pipe concept with Wärtsilä Underwater Services is to minimise these disruptions and costs. We are happy to offer this unique cost-efficient service to any vessel with any make of scrubber”.

Installations of this unique, patented solution and licensed know-how will be carried out by Wärtsilä Underwater Services. In most cases, the repair will be completed in less than two days, which can avoid the ship having to go ‘off hire’. Considerable time and cost savings compared to alternative repair solutions have already been demonstrated.

The Wärtsilä/Maersk solution is intended for long-term protection. It reduces complications associated with welding work required on pipes and sometimes hull plates, particularly in underwater repair situations.

This article is shared by courtesy of Wärtsilä – www.wartsila.com – Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We emphasise innovation in sustainable technology and services to help our customers continuously improve their environmental and economic performance.

For more articles about Wärtsilä, click here.

Marpro Group Editorial Team Send an email September 8, 2022
1,339 2 minutes read
Photo of Marpro Group Editorial Team

Marpro Group Editorial Team

479 Comments

  5. buying from online mexican pharmacy [url=http://mexicanpharminter.com/#]mexican pharmacy online[/url] buying from online mexican pharmacy

  11. canadian pharmacy uk delivery [url=https://interpharmonline.com/#]online canadian pharmacy no prescription[/url] canadian pharmacy world reviews

  23. canadian drug stores [url=http://interpharmonline.com/#]online canadian pharmacy no prescription[/url] best canadian pharmacy online

  28. MexicanPharmInter [url=https://mexicanpharminter.shop/#]reliable mexican pharmacies[/url] Mexican Pharm Inter

  37. Generic 100mg Easy [url=http://generic100mgeasy.com/#]Generic 100mg Easy[/url] Generic100mgEasy

  45. buy generic 100mg viagra online [url=https://generic100mgeasy.shop/#]Generic 100mg Easy[/url] Generic 100mg Easy

  52. Generic Cialis price [url=https://tadalafileasybuy.com/#]cialis without a doctor prescription[/url] Tadalafil Easy Buy

  58. Kamagra Kopen Online [url=https://kamagrakopen.pro/#]kamagra 100mg kopen[/url] Kamagra Kopen Online

  66. TadalafilEasyBuy.com [url=http://tadalafileasybuy.com/#]Tadalafil Easy Buy[/url] cialis without a doctor prescription

  74. Generic Tadalafil 20mg price [url=http://tadalafileasybuy.com/#]cialis without a doctor prescription[/url] Tadalafil Tablet

  80. buy generic 100mg viagra online [url=https://generic100mgeasy.com/#]Generic 100mg Easy[/url] Generic 100mg Easy

  86. kamagra gel kopen [url=https://kamagrakopen.pro/#]kamagra gel kopen[/url] kamagra pillen kopen

  91. Buy Tadalafil 5mg [url=https://tadalafileasybuy.shop/#]Tadalafil Easy Buy[/url] cialis without a doctor prescription

  107. Apotek hemleverans idag [url=http://apotekonlinerecept.com/#]apotek online[/url] apotek pa nett

  113. Apotek hemleverans recept [url=https://apotekonlinerecept.shop/#]apotek pa nett[/url] Apoteket online

  126. Apotheek online bestellen [url=http://apotheekmax.com/#]Online apotheek Nederland zonder recept[/url] ApotheekMax

  132. Kamagra Oral Jelly kaufen [url=https://kamagrapotenzmittel.com/#]Kamagra Oral Jelly kaufen[/url] Kamagra kaufen

  144. mexico drug stores pharmacies [url=https://agbmexicopharm.com/#]mexico drug stores pharmacies[/url] buying prescription drugs in mexico

  152. www india pharm [url=https://wwwindiapharm.shop/#]buy prescription drugs from india[/url] www india pharm

  159. canadapharmacyonline legit [url=https://gocanadapharm.shop/#]GoCanadaPharm[/url] canadian pharmacy online

  168. canadian pharmacy ltd [url=https://gocanadapharm.com/#]precription drugs from canada[/url] my canadian pharmacy

  173. legal canadian pharmacy online [url=http://gocanadapharm.com/#]GoCanadaPharm[/url] canadian pharmacy com

  181. buying from online mexican pharmacy [url=https://agbmexicopharm.shop/#]pharmacies in mexico that ship to usa[/url] Agb Mexico Pharm

  187. can you buy zithromax online [url=https://zithpharmonline.com/#]ZithPharmOnline[/url] ZithPharmOnline

  196. where can i buy cheap clomid without prescription [url=https://clomfastpharm.com/#]can you buy cheap clomid no prescription[/url] where to buy generic clomid prices

  203. can i buy clomid no prescription [url=http://clomfastpharm.com/#]Clom Fast Pharm[/url] Clom Fast Pharm

  211. ZithPharmOnline [url=https://zithpharmonline.shop/#]ZithPharmOnline[/url] zithromax purchase online

  218. lisinopril 20 mg best price [url=https://lisinexpress.shop/#]Lisin Express[/url] Lisin Express

  226. buy prednisone 5mg canada [url=https://predpharmnet.shop/#]Pred Pharm Net[/url] Pred Pharm Net

  233. canli bahis siteleri [url=http://casibom1st.com/#]casibom[/url] bonus veren bahis siteleri yasal casibom1st.shop

  240. sweet bonanza giris [url=https://sweetbonanza1st.com/#]sweet bonanza slot[/url] sweet bonanza yorumlar sweetbonanza1st.com

  248. casino bet giriЕџ [url=http://casibom1st.com/#]casibom giris[/url] casino deneme bonusu veren bahis siteleri casibom1st.shop

  251. sweet bonanza demo [url=https://sweetbonanza1st.shop/#]sweet bonanza oyna[/url] sweet bonanza slot sweetbonanza1st.com

  258. casino siteleri 2025 [url=https://casinositeleri1st.shop/#]deneme bonusu veren bet siteleri[/url] tГјm bet siteleri casinositeleri1st.shop

  270. guvenilir casino siteleri [url=http://casinositeleri1st.com/#]deneme bonusu veren siteler[/url] lisansl? casino siteleri casinositeleri1st.shop

  277. usa mexico pharmacy [url=http://usmexpharm.com/#]USMexPharm[/url] certified Mexican pharmacy

  285. usa mexico pharmacy [url=https://usmexpharm.shop/#]certified Mexican pharmacy[/url] usa mexico pharmacy

  293. certified Mexican pharmacy [url=http://usmexpharm.com/#]usa mexico pharmacy[/url] Mexican pharmacy ship to USA

  298. USMexPharm [url=http://usmexpharm.com/#]buying prescription drugs in mexico[/url] USMexPharm

  304. indian pharmacy [url=https://usaindiapharm.shop/#]Online medicine home delivery[/url] UsaIndiaPharm

  312. USA India Pharm [url=https://usaindiapharm.com/#]USA India Pharm[/url] UsaIndiaPharm

  320. USA India Pharm [url=https://usaindiapharm.com/#]USA India Pharm[/url] UsaIndiaPharm

  335. india pharmacy [url=https://usaindiapharm.shop/#]UsaIndiaPharm[/url] reputable indian online pharmacy

  344. indian pharmacy online [url=https://usaindiapharm.com/#]indian pharmacy online[/url] UsaIndiaPharm

  354. USACanadaPharm [url=https://usacanadapharm.com/#]USACanadaPharm[/url] usa canada pharm

  360. canadian pharmacy online store [url=https://usacanadapharm.com/#]my canadian pharmacy review[/url] legal to buy prescription drugs from canada

  365. USACanadaPharm [url=https://usacanadapharm.com/#]best canadian pharmacy online[/url] canada drugs

  372. canada rx pharmacy world [url=https://usacanadapharm.shop/#]USACanadaPharm[/url] usa canada pharm

  377. USACanadaPharm [url=https://usacanadapharm.shop/#]certified canadian international pharmacy[/url] canadian pharmacies that deliver to the us

  382. USACanadaPharm [url=http://usacanadapharm.com/#]USACanadaPharm[/url] USACanadaPharm

  388. canadian pharmacy online reviews [url=https://usacanadapharm.shop/#]USACanadaPharm[/url] onlinepharmaciescanada com

  423. Tadalafil achat en ligne [url=http://tadalmed.com/#]Cialis sans ordonnance 24h[/url] cialis sans ordonnance tadalmed.com

  426. п»їpharmacie en ligne france [url=https://pharmafst.com/#]Livraison rapide[/url] Pharmacie Internationale en ligne pharmafst.shop

  429. Cialis en ligne [url=https://tadalmed.com/#]Cialis sans ordonnance 24h[/url] cialis sans ordonnance tadalmed.com

  432. Cialis sans ordonnance pas cher [url=https://tadalmed.com/#]Tadalafil achat en ligne[/url] Tadalafil sans ordonnance en ligne tadalmed.com

  435. pharmacie en ligne [url=http://pharmafst.com/#]Livraison rapide[/url] pharmacie en ligne sans ordonnance pharmafst.shop

  438. Cialis sans ordonnance 24h [url=https://tadalmed.com/#]Tadalafil achat en ligne[/url] Cialis sans ordonnance 24h tadalmed.com

  441. pharmacie en ligne france livraison internationale [url=https://pharmafst.shop/#]pharmacie en ligne[/url] pharmacie en ligne avec ordonnance pharmafst.shop

  444. Pharmacie en ligne livraison Europe [url=https://pharmafst.com/#]Pharmacies en ligne certifiees[/url] pharmacie en ligne avec ordonnance pharmafst.shop

  447. п»їpharmacie en ligne france [url=http://pharmafst.com/#]Meilleure pharmacie en ligne[/url] pharmacie en ligne avec ordonnance pharmafst.shop

  449. pharmacie en ligne sans ordonnance [url=https://pharmafst.com/#]Livraison rapide[/url] п»їpharmacie en ligne france pharmafst.shop

  451. Acheter Kamagra site fiable [url=http://kamagraprix.com/#]kamagra livraison 24h[/url] achat kamagra

  453. Achat Cialis en ligne fiable [url=https://tadalmed.com/#]Tadalafil 20 mg prix sans ordonnance[/url] Cialis en ligne tadalmed.com

  461. kamagra 100mg prix [url=https://kamagraprix.shop/#]kamagra oral jelly[/url] kamagra en ligne

  465. pharmacie en ligne france pas cher [url=https://pharmafst.shop/#]Pharmacies en ligne certifiees[/url] Achat mГ©dicament en ligne fiable pharmafst.shop

  470. Achetez vos kamagra medicaments [url=http://kamagraprix.com/#]Kamagra pharmacie en ligne[/url] kamagra gel

  476. Tried the [url=https://www.cornbreadhemp.com/collections/thc-gummies ]cornbread hemp thc gummies[/url] from Cornbread Hemp — the benevolent with a access of THC. Took one before bed. The flavor’s polite, lose dirty but pleasant. With reference to an hour later, I felt noticeably more easy — not drowsy, righteous calm enough to stray substandard without my tendency racing. Woke up with no morning grogginess, which was a minute surprise. They’re on the pricier side, but if you contend to unwind at darkness, they could be worth it.

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button