What is Marine Water Cooled Scroll Chiller
The refrigeration capacity of the water cooled scroll chiller covers a wide range and can meet the requirements of different loads in various occasions. The unit is compact in structure, small in floor area, simple in pipeline design, requiring only external water pipes, and easy in installation and maintenance. It provides multiple protection functions, such as high and low voltage protection, freezing water protection, power phase sequence protection, phase loss protection, insufficient water flow protection, compressor motor overheating, etc.
The marine water cooled scroll chiller carries out seawater anti-corrosion treatment on the basis of the water cooled scroll chiller. Compared with the conventional chiller, the marine water cooled scroll chiller is smaller in size and lighter in weight, so as to minimize the impact of the chiller itself on the economic benefits of the ship.
Features of Water Cooled Scroll Chiller
1.The unit is compact in structure, small in floor area, simple in pipeline design, requiring only external water pipes, and easy in installation and maintenance.
2.Intelligent control, the unit can automatically adjust the input compressor output according to the load change, so that the unit can maintain the best cooperation with the highest efficiency at any time.
3.Imported fully enclosed scroll refrigeration compressor is adopted. The utility model has the advantages of high efficiency, low noise, small vibration, reliable operation, long service life, etc.
4.With microcomputer control system, it has powerful functions such as safety protection, communication, fault diagnosis, automatic adaptation, etc.
5.The main refrigeration components are famous brand products at home and abroad, with superior performance and reliable operation.
6.It provides multiple protection functions, such as high and low voltage protection, freezing water protection, power phase sequence protection, phase loss protection, insufficient water flow protection, compressor motor overheating, etc.
Key Points of Product Selection
1. The main control parameters of the vortex water chiller are the coefficient of refrigeration performance, rated cooling capacity, input power, refrigerant type, etc.
2. The selection of chiller shall be considered according to the cooling load and purpose.
3. When selecting chillers, priority should be given to those with higher performance coefficient. According to the data statistics, the operation time of general water chillers under 100% load in the whole year accounts for less than 1/4 of the total operation time. The proportion of 100%, 75%, 50% and 25% load operation time in the total operation time is about 2.3%, 41.5%, 46.1% and 10.1%. Therefore, when selecting chillers, priority should be given to models with flat efficiency curves. At the same time, the adjustment range of chiller load shall be considered during design and selection.
4. When selecting water chillers, pay attention to the conditions of nominal working conditions. The actual cooling capacity of the chiller is related to the following factors:
a) Cold water outlet temperature and flow.
b) Inlet water temperature, flow rate and fouling coefficient of cooling water.
5. When selecting the chiller, pay attention to the normal working range of this type of chiller, mainly because the current limit of the main motor is the current value of the shaft power under the nominal working condition.
Key Points of Construction and Installation
1. Vibration isolation and noise elimination measures shall be considered for the installation of water chiller. When installed outdoors, the electrical control equipment and control cabinet shall be placed indoors. The installation position of the control cabinet shall be able to effectively avoid moisture and even condensation in the cabinet.
2. The concrete foundation of the chiller unit shall be flat. When installing on the shock absorber, the pre compression of each shock absorber shall be uniform and the deviation shall be less than 2mm.
3. The pipes connecting the chiller shall be provided with flexible joints, and the weight of the system pipes shall not be supported by the chiller.
4. The hoisting point of the equipment shall be used for the hoisting of the water chiller, and it is prohibited to tie the lifting rope on the equipment at will.
Parameters of AYD-40W
| Item | Specification / Supplier | |
Cooling Capacity | Model | AYD-40W |
| KW | 88.4(22.1*4) | |
| TON | 25 | |
| Power Supply | 380V-3N-50HZ | |
Temperature | Evaporation(℃) | -5 |
| Outlet Water(℃) | 0-1 | |
Refrigerant | Control | Expansion Valve(Emerson) |
| Circle | 4 | |
| Type | R407C | |
Compressor | Style | Hermetic Scroll |
| Model | C- SCN903H8K(Sanyo) | |
| Quantity(pcs) | 4 | |
| Power(kw) | 40.28(10.07*4) | |
| Current(A) | 68(17*4) | |
Optional | Water Pump(Flowm³/h) | 24 |
| Thermal Insulation Water Tan(L) | 200 | |
Protector Device | 1.Phase Protector | |
| 2.Overload Protector | ||
| 3.High/Low Voltage Protector | ||
| 4.Coil Overheat Protector | ||
| 5.Anti-freeze Protector | ||
| Dimension（mm）L*W*H | 2200*600*900 | |
| Unit Weight（kg） | 620(with pump and tank) | |
| Main Parts Brand | ||
| Compressor | Sanyo | |
| Electronic | LS | |
| Expansion Valve | Emerson | |
| Electrical Control | Siemens | |
Parameters and Specifications of Some Models
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