Example Analysis of Huajia Pipeline Connector and Flange Installation
Example Analysis of Huajia Pipeline Connector and Flange Installation
Taking the assembly of 5000 Huajia pipeline connectors on roll on/roll off ships built by Chinese shipyards as an example, a comparison is made between the assembly of Huajia connectors and flanges in terms of various main indicators: (see Table 1 below)
Table 1 Comparison indicators of Huajia pipeline connectors and flanges used in a 2000 meter lane roll on/roll off ship:
Indicator | 2000Rice lane roll onBoatSelectSelect2.0MpaThe following pressure pipes have a diameter of >DN20mm | |
Carbon steel flange connection (including bolts and washers) | HuaJiaGLType connector | |
Estimated quantity | 5000Facing flange | 5000Only connectors |
Space | Huajia pipeline connectors are better than flange jointsProvince50%The above spaces | |
Advantages | Using pipeline connectors can increase effective space and facilitate alignment with equipment and pipelines | |
Weight | Approximately40Tons | Approximately10Tons |
Advantages | The use of Huajia pipeline connectors can reduce the weight of the ship and increase the effective load capacity for shipowners | |
Installation requirements | Installation requirements are high and labor-intensive | Easy to install and time-saving |
Estimated working hours | 1250 working hours | 42 working hours |
Advantages | The use of connectors can shorten the construction cycle, reduce labor and material input, and save costs for shipyards | |
Construction investment | Approximately39510000 | About40010000 |
Result | Slow delivery of ships (affecting shipyard revenue) | Shipping can be delivered in advance |
Subsequent maintenance | Regular maintenance | Maintenance-free |
Maintenance status | During maintenance, flanges and accessories cannot be reused | Access to maintenance connectors can be reused |
Impact resistance | Poor vibration resistance and possible leakage | Flexible sealing connection, good impact and vibration resistance |
Advantages | Using connectors to improve ship reliability and reduce additional maintenance costs for shipowners during operation | |
Based on the service life of the ship being 20-25 years, the pipelines on board need to be replaced every 3 to 5 years. The value of existing pipeline connectors that can be reused after replacement is extremely low. If they are replaced every 5 years, it means that the pipeline needs to be invested 4-5 times. However, using Huajia pipeline connectors is designed according to the full life of the ship and can be reused, so investing once is sufficient. It can be clearly seen from Table 5 that using Huajia pipeline connectors has saved a lot of costs, and its economy is clear at a glance. At the same time, when replacing the ship's piping system, due to the lack of gas cutting and its own reusability, it is both safe and saves time, allowing the ship to enter the operating state quickly.