Company Details
Unisite Group Ltd.
Unisite Group Ltd.
steel jet pipe,steel water jet pipe,water jet pipe,jet pipe steel
The jet water pipe is part of Trailing Suction Hopper Dredger, work together with Suction Pipe, through suction pipe, from the seabed dredging ship, the dredging method is similar to a vacuum cleaner. Ship fitted with one or several pumps, centrifugal pumps suck up water from the sea floor and mud, into the hopper of the ship. These operations are carried out during the voyage , while digging edge flight, heading for the hopper filled to throw mud mud area, through the mud bilge cases out the door. shiploads are trailing suction hopper with its capacity to indicate the size specifications, the general compartment volume is 500 ~ 1000m3. the minimum energy of trailing suction boat under construction in water depths of about 3 conditions deepened the largest trailing suction ship up to 3 to 35 or more. this ship belongs to the trailing suction ship, dredging can be considerable in the storm at sea, navigation and throwing mud. The Jet Pipe can clean the dirty material from sea
Basic introduction
Any pipeline used to make the gas flow down the growth rate is called the nozzle, there are two kinds of commonly used in thermal power nozzle: one is the gradual shrink nozzle, the other is a convergent divergent nozzle, or Lawal nozzle.
In the jet engine, high pressure gas (or air) is converted into kinetic energy, so that the air flow in which the expansion of the acceleration of high speed outward jet to produce the reverse thrust of the component, also known as exhaust nozzle, thrust nozzle or tail nozzle. There are many types of nozzle, such as fixed or adjustable convergent divergent nozzle, convergent divergent nozzle, ejector nozzle and plug nozzle. High-speed fighter mostly adopts adjustable convergent nozzle and adjustable convergence diffusion nozzle and ejector nozzle; rocket engine fixed convergent divergent nozzle; vertical or short takeoff and landing aircraft by converting nozzle.
The ratio of total pressure at the inlet of the nozzle and the static pressure at the outlet is called the nozzle pressure ratio, the expansion ratio or the pressure ratio. Convergent divergent nozzle exit area and critical section area (the minimum cross section area of over expansion area ratio, known as the area ratio of the nozzle. When the gas stream is expanded to the static pressure of the nozzle exit exactly equal to the atmospheric pressure, known as fully expanded nozzle, its performance best when the flow in the nozzle exit static pressure is greater than the outside atmospheric pressure, said is not fully expanded nozzle, the pressure of the gas flow can not fully converted to kinetic energy. When the static pressure at the nozzle exit is lower than that of the external pressure, it is called the over expansion nozzle.
Photo of our Jet pipe:
The specifications of our Jet water pipe
A. General
High accuracy, fully welded, painted construction can be used for trailing suction hopper Dredger, a variety of angles for different position of TSHD, used in conjunction with suction pipe. It is approved BV
B. Construction and procedure
The construction is to be built according to the drawing with rules of good workmanship.
The construction consist straight pipes and variety of angle bends supports, which are carefully manufactured and checked to ensure total length, straightness, angle within the specific tolerances.
C. Materials
All fabricated steelwork used in the construction of the jet pipe will be to manufacturing standard of normal or classification society.
All steel used to be blasted and shop primed both sides.
All materials proposed will be selected to comply with the latest Health and Safety Rules.
Paint systems for hull protection will be of the highest quality (Hempel, Inter, Sigma, Jotun)
D. Welding
All welding will be performed in accordance with drawing and order and UniSite experience and all welding will be continuous and full penetration.
E. Workmanship
The workmanship have good marine practice. Care are taken to ensure fair lines, smooth surfaces and neat welding.
F. Main particulars
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| MAIN PARTICULARS |
| Tolerance | High accuracy(ISO2768, ISO5817, ISO13920) |
| Material | Q345, DH36 other materials |
| Dimension(L*B*H) | As per drawing, as large as we can |
| OD | 450mm-1500mm |
| Weight | 500kg~15000KG |
| Coating | Sa2.5 blasted and two or three layers painted with highest quality |
| Marking | as per clients' requirements |
| Inspection | material, construction, dimension, welding seam, non defective test, paint inspection |
| Others | Recyclable, in line with environmental requirements and standards, and reliable |
