vlad minea - condmag

Vlad MINEA MANOLACHI Pag. 1 of 13

NOTEWORTHY ACCOMPLISHMENTS @ CONDMAG SA

1- Cold weather welding preheater, welding enclosures, controlled cooling belts.

Idea description:

Welding is a major operation in the

Pipeline Contractor business and has to

be performed in the field, to form the

pipeline.

Weather conditions and temperatures are

a big factor in the quality of welding.

In the cold weather the material has to

be brought to a certain temperature

before welding, maintain the conditions

during the welding of the weld bead and

then have a controlled cooling process in

order to ensure a high quality weld

required for high pressure natural gas

pipelines.

Figure 1 - Pipeline welding area that

requires the special treatment. These pipe

are 3’ in diameter and have a wall thickness of ½”

Figure 3 - Special enclosure that can be easily

placed over the pipeline, protects the welder

and the welding area from wind, rain and snow

and maintains the proper welding conditions.

Had to be dimensioned according to the health and safety requirements

Figure 2 - Diesel Fuel flame heater. Using

diesel fuel and compressed air creates a

high temperature powerful flame that

allows and efficient and fast preheating

procedure.

Figure 1 - Controlled cooling belt. Thermal insulation was

applied over the fresh finished weld bead and maintained

there for a certain time depending on the outside temperatures. Ease of installation is a major factor.


2- Designed an automatic welding device for segmented pipeline curves - awarded with an innovation certificate in 1989.

Welding Head

Segmented curved pipe

Rotor body

DistanceD1

AngleA1

Rotation

Axis

Welding Head

Segmented curved pipe

Rotor body

DistanceD2

AngleA2

Position for Weld 2

Position for Weld 1

Welding path isin a vertical plane

Welding path isin a vertical plane

Protective Flux

Protective Flux

Rotation

Axis

Welding Head

Welding Head

Operators Platform

Welding HeadSupport Arm

Idea description:

Welding is a major

operation in the Pipeline

Contractor business but

some constructive

elements can be prebuilt

in factory environments

with higher efficiency

installations.

Due to the thickness of

the material of large

diameter pipelines,

submerged arc welding is

the desired process. The

process requires the weld

area to be covered by the

flux and that can happen

only in a condition in

which the gravity does

not remove the flux. This

is usually done by

rotating the pipe under

the welding head. The

joins of a segmented

curve are not round they

are elliptic, so this device

has to compensate for

the problems.

The rotating plan of the

weld had to be set

vertically.

Figure 1 - Diagram presenting the principle of mounting

and rotating a segmented curve so that the welding plane is vertical during the process.

Figure 2 - Image of the installation functioning in factory

environment.

Figure 3 - Model presenting the

challenges of rotating a segmented

curve for welding purposes.


Welding Head

Motor wheelMotor wheel

Support wheel

Protective Flux

Incline section

Rotary Plate

Pipe Holder

PipeSegment

Welding Head

Rotary Plate

LoadingHook

StructureFrame

ChainFluxRecyclingContainer

InclineSection

Idea description:

The process is sown for

half of the segmented

curve, after that the

curve is flipped in the

installation and the other

end is brought in the

welding area and the

whole procedure is

repeated.

Challenges of the project

were the sophisticated 3D

movement of very large

and heavy objects,

performed at controlled

speeds and zero

accelerations.

Project was finalized in

1989 and is still in use

today. Controls were

upgraded to

computerized systems

but the mechanics are the same.

Figure 4 - Diagram with solutions of the challenges presented previously.

Figure 5 - Image of the installation performing weld nr.2 as presented in the previous diagram.


3- Cable pulleys to resist tensions of 600,000 lb. for 2.5 inch diameter cables.

Idea description:

Undercrossing the river Danube was

done successfully twice in Romania with

this “pulling” solution. A critical element

of the solution were the pulleys that

were supposed to bear large forces

during the process.

Due to the powerful flow of the Danube

River the pulleys were subjected to

horizontal forces in addition to the

vertical ones.

Figure 3 - Engineering team at the site

photographed on the pipeline ready to start

the launching process. I am the one in the middle.

Figure 1 - The pulleys before starting

the pull. Group of process

supervisors and the river Danube in the back. 1986

Figure 4 - Disjoining the cable segments after

pulling stroke. Notice the dimension of the cable – 2.5" diameter.

Figure 5 - Diagram representing the process in a cross- section through the river in the

crossing area.

Figure 2 - Pulleys detail of the cross

section diagram.


First page:

ROMGAZ R.A. Medias NATURAL GAS DISTRIBUTION BUCURESTI

GAS LICENSED PLUMBER LICENSE Nr: 3979/ 1994

Second page:

Photo Owner’s signature Last Name: MINEA MANOLACHI

First Name: Vlad Residence: BRASOV, Grivitei nr. 42

ID Series: B.T nr: 283530 Issued by: BRASOV

Third page:

Degree obtained through licensing I - Design, manufacture and operation of all gas works. VOIDED

II - Design, execution and operation of utilization installations, operation and execution of all works of distribution system – GRANTED.

Director: Illegible Signature Date of issuing: 12-07-94. Stamp. III - Execution, operation and maintenance of all natural gas utilization installations. – VOIDED

Forth page:

Annual visa Year 1995 Director: Illegible Signature, Stamp

I certify hereby the concordance of this translation with the original document in Romanian

endorsed by me,

Translator: Vlad Minea Manolachi


SOCIALIST REPUBLIC OF ROMANIA

MINISTRY OF PETROLEUM

(Ministry or Central Body)

INNOVATOR CERTIFICATE

Number: 924

For innovation titled: AUTOMATIC FLUX CORED WELDING INSTALLATION FOR

SEGMENTED PIPE CURVES JOINS

Innovation was registered at the date: 1989

At: CGM-IAMCM Brasov

(Name of innovation registering company)

Acknowledges as author(s): ing. Minea Vlad

Through this certificate, granted under article 71 of the Law 62/1974, all privileges associated

with this accreditation are conferred upon the author(s).

Delivery date: 10.08.1989

Director: Ing. Val. Soare

Illegible signature

Stamp


endorsed by me,



SOCIALIST REPUBLIC OF ROMANIA

MINISTRY OF PETROLEUM

(Ministry or Central Body)

INNOVATOR CERTIFICATE

Number: 558

For innovation titled: AUTOMATIC FLUX CORED WELDING INSTALLATION FOR

CIRCULAR AND ELIPTICAL JOINS AT METALLIC CONSTRUCTIONS AND PIPES

Innovation was registered at the date: 1984

At: Intreprinderea Antrepriza de Montaj conducte Magistrale Brasov

(Name of innovation registering company)

Acknowledges as author(s): CAPBATUT VASILE, PANAZAN TEODOR, MINEA VLAD,

KERTESZ PAVEL, NECULAE NECULAE, STOICA CONSTANTIN and COPOT ION

Through this certificate, granted under article 71 of the Law 62/1974, all privileges associated

with this accreditation are conferred upon the author(s).

Delivery date: 28.05.1985

Illegible signature

Stamp


endorsed by me,


vlad minea - condmag

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