AW ACE Working in Energy 12pp v5

8/6/2019 AW ACE Working in Energy 12pp v5

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Ace Controls International

Unit 404 Easter Park Haydock Lane

Haydock WA11 9TH United Kingdom

Telephone: +44 (0)1942 727440

Facsimile: +44 (0)1942 717273

Email: [email protected]

Web: w ww.ace-controls.co.uk

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02 | ACE:Working in Energy



Shock Absorbers

Shock absorbers operate on the basis of energy

conservation; in that energy cannot be created nor

destroyed but can only be converted. The input energy,

be it the motion of a mass (kinetic energy) impacting or

that supplied from a motor or cylinder is converted inside

the shock absorber to thermal energy. It is due to t his

process that the shock absorber has a specific energy

capacity which correlates with the hydraulic oils specific

heat capacity and the volume contained.

Ace shock absorbers are specifically designed to

complete this conversion of energy quickly and safely

without re-bounding the input energy. By entering the

application details into their product selection software

programme, Ace engineers can accurately predict the

performance of a particular shock absorber. For optimum

performance the shock absorbers internal metering tube

pattern can be custom designed. Peak reaction forces

and rates of deceleration can be plotted with extreme

accuracy thus allowing design engineers to calculate

associated stresses placed on any supportive structures.

The majority of Ace shock absorbers are now Weartec

Plus treated as standard, giving greater corrosion

resistance when compared to hard chrome, platinum

and nickel plating. Shock absorbers constructed from

stainless steel are also available and the standard

operating oil can be replaced with Mil Spec oils and

fire resistant fluids, such as Shell Irus Fluid C.

High Performance Products

Shock absorbers, hydraulic dampers, TUBUS profile dampers and gas springs in particularare used from our extensive range of products by companies in the energy sector.




Case Study:

Subsea Soft Landing

In this application shock absorbers are used to provide a

soft landing for the well intervention equipment deployed

from a surface vessel to a subsea structure. The internal

metering tube of the shock absorbers used, was custom

designed to give the lowest possible reaction force

during impact.

In addition, to function at the increased external pressure

at depth, pressure compensation holes were drilled in

the body area surrounding the shock absorber’s internal

accumulator.

As recommended by Ace, the shock absorbers external

components were coated with Xylan 1070, an organic

barrier coating suitable for extreme salt spray conditions.

Case Study:

Controlling Swinging Equipment

Hydraulic dampers are used to control the swinging motion

of equipment suspended from a winch during deployment

and retrieval from the seafloor. The dampers prevent the

amplitude of swinging cycles progressively increasing to

dangerous levels and improve the overall control of the

lifting/lowering process. Stainless steel dampers are

used because of the marine environment.

Another recent application involved the use of CB safety

shock absorbers mounted on a ship based loading arm

(LDA). The LDA is approximately 52m long and weighs

a massive 162 tonnes. Four CB100 units are staggered

along the LDA to limit the load transmitted to the

superstructure if the LDA was to swing out of control

during rough sea conditions. In order to function in an

aggressive marine environment, the shock absorbers

body and end button were epoxy coated and a stainless

steel piston rod was fitted.

Case Study:

Crash Cushion

Ace shock absorbers are used to provide a crash

barrier and protect valuable equipment attached to

ROV’s (Remotely operated underwater vehicle) and

submarines. When impact energies are relatively low

and an economic alternative is required, TUBUS

profile dampers can be used.

Motion Control Applications

Today, Ace products can be found in nuclear plants,offshore and onshore drilling rigs, wind turbine farmsand on mining equipment. Typical ways in which our

products are being used are detailed below.

Oil, Gas & Subsea





More importantly however, if you are unsure about what product

to use, especially in some of the harsh environments that you

operate in, then contact us about your application. Use our

product expertise, application experience and installation

knowledge and get the right solution for you.

Choosing The Right Product

Complete technical information about all of our products is available in ourcomprehensive technical catalogue or via our website where visitors candownload the catalogue, access shock absorber and gas spring selection

programs and view CAD images of products with selected accessories.




Quality Approvals & Lifetime Warranty

Ace products are designed and manufactured to ISO 9001: 2000 and areguaranteed to be free from defects in materials or workmanship. Ace willrepair or replace any of its products determined to have a defect in

materials or workmanship at any time for the life of the product.

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In the UK, Ace also has the ISO 9001:2008 with UKAS

accreditation from the British Standards Institution for

operating a quality management system covering the

stocking, sales, application selection, modification

and supply of automation control equipment.

In addition, because we work in the energy sector,

we are members of The EIC, the leading trade

association for UK companies that supply capital

goods and services to energy industries worldwide.

Documents

AW ACE Working in Energy 12pp v5