Knowledge

Classification of ship hatch covers

Marine hatch covers are mainly divided into three categories: lift-off hatch covers for containers, side-moving hatch covers for bulk carriers, and foldable hatch covers for genera

Features of marine doors

Marine doors can be divided into tight doors according to their functions and usage characteristics, (watertight doors, weathertight doors, airtight doors, choke doors), fire doors

The difference between portholes on ships and general windows

Marine side scuttles refer to round windows with watertightness that are located on the side shells, superstructures and outer walls of deckhouses. The ship’s side scuttle, togethe

Basic knowledge of marine bilge pumps

The function of the bilge pump is to discharge the water accumulated in the bottom of the ship. In most cases, there are several reasons for the accumulation of water at the bottom

Classification of marine pipe fittings

Use classification 1. The pipe fittings used to connect the pipes are: flanges, unions, pipe clamps, ferrules, hose clamps, etc. 2. Fittings that change the direction of the pipe:

Common faults and cause analysis of packing faults in valve faults

The common faults of the packing mainly include four types: too small pre-tightening force applied to the packing, failure of the fastener, damage to the sealing surface of the val

Classification and use of marine valves

According to the channel direction of the stop valve, it is divided into: 1) Straight-through globe valve 2) Direct-flow stop valve: In direct-flow or Y-shaped stop valve, the flow

Basic knowledge of marine valves

Marine valves are equipment used to control the pressure, flow and flow direction of fluids in marine pipelines in order to meet the environmental conditions of ships. A valve is a

The difference between steering gear and ordinary DC motor

The rotation range is different: the steering gear moves within a certain angle range, while the DC motor rotates within 360°. Whether the feedback is different: Ordinary DC motors

Working principle of marine steering gear

1. The control circuit receives the external angle control signal and judges the direction of rotation of the DC motor. 2. Drive the DC motor to rotate, and transmit the power to t

Failure judgment and repair of the steering gear

1) After the bomber, the steering gear motor spins wildly, the steering wheel rocker arm is out of control, and the rocker arm is slipping------------------It can be concluded that

Types and differences of marine steering gear

Marine steering gears are mostly electro-hydraulic, that is, hydraulic equipment is remotely operated by electric equipment. There are two types: One is the reciprocating plunger s