Recently, a business vessel (ship-type shipyard trading) renovation project provided by CSIC 704 for ice-temperature preservation system was accepted and delivered by the shipowner. On the occasion of delivery and acceptance, the shipowner said: “The fresh-keeping effect of fruits and vegetables under the new system has been significantly improved!†The head chef of the ship said with surprise: “There has never been a vegetable in the past for 10 days and it is still so fresh. In the future, on board. The food is definitely better than before, and the variety can be more.†The leader of the equipment at the ship is also very satisfied with the new equipment: “Although many controller sensors are added (purchasing supply), the operation is convenient and the sensor can It is easier to judge the crew when they encounter unexpected situations, very good!"
     So far, after extensive use in the new shipbuilding field, the 704 ice temperature preservation system took a solid step in the transformation ship market for the first time, laying a solid foundation for the product market expansion.
     In the course of carrying out the mission, the ship often needs to go to the sea at high frequency for a long time. However, due to years of use, some of the equipment on the ship is aging. For example, the traditional refrigeration (product purchase and supply) system still used, the temperature fluctuation of the library is large, and the fruits and vegetables can only be stored for about 5 days. If you can't eat the vegetables, you will have no appetite. If you can't eat the meat well, you can't eat it. The crew's physical exertion and mental stress are huge, which greatly affects the work efficiency. At present, although a small number of newbuildings use nitrogen to preserve fruits and vegetables. However, due to its complex and bulky system, the space utilization rate is low, and the high sea conditions in navigation have hidden dangers of nitrogen leakage. In contrast, the transformation of the ship on the basis of the original equipment and the installation of the ice temperature preservation system can be described as a more cost-effective option.
     As a new product successfully developed by 704 Hengtuo Company, the ice temperature vegetable and fruit preservation system can accurately control the temperature, which greatly prolongs the fresh-keeping effect and cycle of fruits and vegetables compared with the traditional method, and is convenient to use and lower in cost.
     If it is difficult to build a ship, then it is even more difficult to renovate the ship. It needs to replace the compression condensing unit and its chiller (purchasing supply) of the original high temperature library as a whole, so that the new system is the host (purchasing supply) group, and the original equipment can be switched freely as a backup. In the ship reconstruction project, the project team started from the cold storage design calculation, and all kinds of vegetables, fruit fish and dairy products were loaded according to the latest international food replenishment standards, and the layout inside the cold storage was re-arranged to greatly improve the storage capacity utilization. The reconstruction project is difficult to construct, the installation accuracy is high, and the equipment can only be installed into the warehouse when the hull is not cut open or the space is small. The project team has been optimized by the program design, which has greatly reduced the equipment width of the largest piece and assembled it in blocks. In the end, after dozens of days of unremitting efforts, the tasks from system design and equipment drawing to production, installation and commissioning were successfully completed in advance, which was well received by all parties. This will provide a solid guarantee for the vessel's long-haul and more powerful tasks under the harsh conditions of the sea, and contribute to the national coastal defense industry.
| Front drag |
| Thick bail arm |
| Super strong drive gear |
| Hight intensity graphite material |
| Micro-adjusting drag system |
| Excellent line lay oscillation system |
0.35/350 0.40/270 0.45/210; 11/380 13/295 15/230
| ITEM | Gear Ratio | Ball Bearing | OWC | Line Capacity(mm/m;Lbs/yds) |
| NF1000 | 5.2:1 | 1BB-7BB | N | 0.2/310 0.25/200 0.3/140; 6/340 8/200 10/150 |
| NF2000 | 5.2:1 | 1BB-7BB | N | 0.2/390 0.25/250 0.3/170; 6/420 8/270 10/185 |
| NF3000 | 5.2:1 | 1BB-7BB | N | 0.30/250 0.35/200 0.4/110; 8/270 10/185 12/120 |
| NF4000 | 5.2:1 | 1BB-7BB | N | 0.35/180 0.40/140 0.45/110; 10/200 12/145 15/115 |
| NF5000 | 5.2:1 | 1BB-7BB | N | 0.35/310 0.40/240 0.45/190; 10/340 12/260 15/207 |
| NF6000 | 5.2:1 | 1BB-7BB | N |
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| Gear Ratio | 5.2:1 |
| Bearings | 1BB--7BB |
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