Vortex T-100 Operations manual

T-100

TORNADO

4-INCH dredge

All information correct as March 2020 and subject to changes without notification.

Dredge Equipment Operations manual.

PATENTED

Index

Cover page

Index

Introduction

Introduction continued

Performance and removal rates

User checklist

User checklist continued

Hydraulics

Hydraulic continued

10.

Suction performance graph

11.

Installation

12.

Installation continued

13.

Installation continued

14.

Shipping box

15.

Inventory

16.

Spares

17.

Axial pump repair procedures

18.

Axial pump repair procedures

19.

Trouble shooting

20.

Contacts

Your safety is your responsibility. Please ask if you are unsure about anything.

Introduction

The Vortex TORNADO 4-inch is characterized by the following advantages:

• No depth limitations

• Quick mobilization

• Easy operation

The T-100 TORNADO 4-inch dredge Is designed for higher capacity hydraulic supplies that enable a dredge Inlet vacuum up to 29.5 in/hg (100 kpa) at 2800 psi and 78lpm.The Vortex TORNADO ROV 4-inch is designed for Subsea excavation and disposal of seabed materials up to 99 millimeters in size. It can be mounted to any Work Class ROV and requires no ship deck space and sea fastening. The Vortex TORNADO 4-inch is very powerful, has no depth limitations and is quick and easy to mobilize and operate, it must NOT be run in air. Only in water.

The Vortex TORNADO 4-inch equipment can be operated and maintained by the ROV crew.

Vortex has developed a dredge kit with two primary considerations: First priority is ease of mobilization. The client needs to see rapid deployment of hire gear. The entire kit is shipped in one single box.

Second priority is power. Our TORNADO 4-inch dredge has shown under real world conditions to provide removal rates well in excess of other 4-inch dredges and has been comparable to 6-inch dredges in performance. We have included the option of a jetting head kit.

The Vortex TORNADO 4-inch equipment is easy to set up and use. However, if on site support is agreed in the contract, Vortex Personnel will assist during mobilization and demobilization and or support the project during the entire operation.

Your safety is your responsibility. Please ask if you are unsure about anything.

Introduction continued Operating Limits

The operating limit for the Vortex TORNADO 4-inch, will be the responsibility of the Senior ROV person on-site. The limitation being the ability to safely deploy and recover the ROV system with the Vortex TORNADO 4-inch attached. Care must be taken whilst during launch and recovery operations to prevent damage to all components of the dredge system and the ROV.

Risks - Normal Operations

All personnel involved in deck operations shall be aware of the potential risk described hereafter.

• Crane Handling (possible danger of e.g. heavy falling object)

• Launch and recovery of equipment over the side of the vessel

• Personnel working over open sea (typical personnel working with launch and recovery of equipment from vessel

deck or moon pool)

• Object falling down from height (rocks following the equipment when recovering)

• Working with equipment under pressure (hydraulics or water)

• Hydraulic oil spillage

Safety

Personal protection equipment recommended for use when working on ship/platform deck

• Hard Hat

• Safety glasses

• Gloves

• Safety Boots

• Overall

Vortex TORNADO 4-inch Introduction

The Vortex TORNADO 4-inch is designed for Subsea excavation and disposal of sediments and gravel up to 99 millimeters. It is easily mounted to the ROV and requires no ship deck space and sea fastening. The Vortex TORNADO 4-inch requires no specialist operator or additional cables between ship and sea floor.

TORNADO 4-INCH ROV DREDGE EQUIPMENT OPERATIONS MANUAL

Vortex TORNADO 4-inch Dredge Capacity

*Based on iron sand and rocks at 2.375 kg per liter

Debris Removal rates (ton/hr) *60 ton per hour plus Debris removal rates (mtr3/ hr) *27 cubic meter per hour *15% solids by volume Rated Maximum stone size 100 mm Actual Maximum stone size 99.5 mm Inlet suction hose length 3800 mm standard to custom length Hydraulic flow required 78 lpm minimum (20.6 gpm minimum)

OPTIMUM FLOW IS 80 lpm (21 gpm) Coupling compensator NO Hydraulic pressure required 165 bar minimum (2400 psi minimum)

OPTIMUM PRESSURE IS 3000 psi (206 bar) (4500 psi max) Operating depths Unrestricted Operate pump in air NO. DO NOT RUN PUMP IN AIR: ALWAYS RUN IN WATER Available suction at inlet 29.5 in/hg (100 kpa) at 3000 psi and 80 lpm

Main Components Weights and Measures

Pump weight in air 50 kg (complete pump unit) Pump weight in Seawater 39 kg (complete pump unit)

All items must be accounted for upon return to avoid damage / loss charges.

Performance and removal rates

170mm wide

User Checklist Before Dive

To prevent any damage to the equipment this checklist must be followed

Project: ............................................................................................... Dredge No: ...................................................

Item Description Checked Comments Date

1. Ensure ROV can and does supply: OPTIMUM FLOW IS 80 lpm (21 gpm) OPTIMUM PRESSURE IS 3000 psi (206 bar)

DO NOT RUN PUMP IN AIR: ALWAYS RUN IN WATER

(4500 psi max) Follow hose directions as shown

2. All fittings are checked for leakage

3. All hose clamps are checked

4. Pumps are fastened, no loose screws

5. Suction hose is fastened

6. Dredge is fastened, no loose ends

7. All hoses are fastened and in proper condition

8. Filter for induction is mounted in clean water

9. No hoses are squeezed or bent

10. Inlet nozzle is mounted correctly

11. Case drain and coupling are filled with clean oil

Comments:

.......................................................................................................................................................................................................................

Dredge is checked by: ............................................................................................

Date: ............................................................................................

TORNADO 4-INCH ROV DREDGE EQUIPMENT OPERATIONS MANUAL

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