Products
Layered heat sink series
High temperature type air cooled models, Upper lower layer air cooler condenser independent design, Large capacity, easy to install, easy maintenance, Applicable air compressor 50 ~ 400HP.
<Refrigerated air dryer>
<Refrigerated air dryer>
The most commonly seen air drying devices that run at low operating cost make use of the refrigerant loop of refrigerating system for cooling compressed air down to 2°C to condense and remove moisture to yield properly dried compressed air.
<Air-cooled Type>
Using the physical circulation technology of the refrigerating system, the temperature of the compressed air is lowered to 2°C to condense and remove the moisture.The refrigeration system uses ambient air to dissipate heat and is suitable for well-ventilated environments.
● Product superior
Efficiency / Quality / Durability
Efficiency
Two-stage counter and turbulent flow + fin-tube enhanced heat conduction patented technology. Especially be suitable for heavy load and high temperature environment.
Two-stage counter and turbulent flow + fin-tube enhanced heat conduction patented technology. Especially be suitable for heavy load and high temperature environment.
There are two main characteristics of the “Enhanced heat conduction fin-tube heat exchanger”:
1) Two-stage counter and turbulent flow.
In the heat exchanger, the high-temperature air entering from the environment will exchange heat with the cold air that has flowed through the evaporator. There are also many guide plates in the middle, so that the cold and hot air flows in a "counter-flow" and "turbulent flow" way to enhance the heat exchange effect.
2) Multi arc-wings aluminum extrusion
The materials of the heat exchanger are all high heat-conduction coefficient, including high-density aluminum fins, high heat transfer coefficient coppers, and the other key innovation-- Multi arc-wings aluminum extrusion. The aluminum extrusion is placed in the copper tube, which can force the air to diverge and fully contact the copper tube. The aluminum extrusion can also transfer heat to the copper tube, increasing the heat exchange efficiency by 20%.
The promotion of heat exchange efficiency can bring more convenience and possibility :
1) Overcome the limitation of environment temperature
First, the heat exchange efficiency becomes better, which means that the allowable inlet hot air temperature can be increased, and it can be used in a higher temperature environment. Currently, the applicable ambient temperature of our product can reach 45°C.
2) Reduce purchase and use costs
When the outlet hot air can release more heat from the heat exchanger, the temperature entering the evaporator can be lowered so that it can reduce the load of the refrigerant compressor and reduce power consumption. Additionally, when the temperature of the hot air outlet decreases, it means that the same freezing capacity can process more flow of air. The processing capacity increase more 10% than before, so that the dryers can match the modern energy-saving and high-efficiency air compressors , and there is no need to buy a larger model. In this way, it can be helpful in terms of purchase, space utilization, electricity bills, and the maintenance costs in the future.
3) Maintain the factory environment
The dry cooling air from the outlet of the evaporator, gets more temperature rise after passing through the enhanced heat exchanger, which increases the outlet temperature by 7°C compared to the previous machines. Therefore, the outlet is less dew condensation, and it can reduce corrosion to avoid pollute the factory environment.
Quality
The unique technology-- "specific gravity laminar flow separation method".
Using the different physical properties of the fluid (air, water) and the design of pipe diameter , the Reynolds number in the pipe becomes a laminar flow state at low flow rate and does not mix with each other to achieve the best separation effect of condensed water and dry air.
Durability
Patented technology "dew point control protection" + perfect protection measures
Dew point control:
The precise automatic freezing capacity adjustment method (hot gas by-pass valve＋condensing fan control), under the rated operation conditions, allows the dryer to maximize the freezing capacity at high load; and automatically adjusts capacity at low load. It can prevent ice blockage and maintain the best drying effect.
Perfect protection measures:
Using the compressor overload protection feature, when any conditions of temperature and current is tripped, the current sensor of the controller immediately senses the fault signal, which does make up for the lack of single-condition protection of general mechanical switches.
● Product flow chart
SD-075S~SD-400S System flow chart
<Refrigeration systems>
Code / Name
01 / Refrigerant compressors
01 / Refrigerant compressors
02 / Condenser
03 / Capillary
04 / Evaporator
05 / Hot gas bypass valve
06 / Low pressure gauge
07 / High pressure gauge
08 / Filter dryer
09 / Dual Pressure Controls
10 / Intelligent control and protection board
<Air system>
Code / Name
31 / FrontCoolers.Ambient air VS Compressed air
31 / FrontCoolers.Ambient air VS Compressed air
32 / Precooler.Compressed air VS Compressed air
33 / Evaporator.Refrigerant VS Compressed air
34 / Automatic drainage
35 / Outlet pressure gauge
● Product Specifications
| Model | SD-075S | SD-100S | SD-150S | SD-200S | SD-250S | SD-300S | SD-400S | |
| Air flow capacity (Nm³/min) | 0.9~12 | 12~16 | 18~23 | 24~31 | 28~36 | 36~47 | 40~62 | |
| Pressure dew point (℃) | 2~10 ℃ | |||||||
| Inlet temperature (℃) | 5~75 ℃ | |||||||
| Ambient temperature(℃) | 5~45 ℃ | |||||||
| Inlet pressure (㎏/㎝²G) | 2~10 ㎏/㎝²G『Optional customized 10~16 ㎏/㎝²G Model＋【H1】』 | |||||||
| Power supply frequency | 3ψ220V/50～60Hz『Optional customized 3ψ380V、440V、460V / 50～60Hz』 | |||||||
| Running current (A) | 7.8 | 11 | 15 | 20 | 23 | 29 | 34 | |
| Power consumption (kW) | 2.0 | 2.6 | 4.5 | 5.3 | 6.7 | 7.6 | 9.3 | |
| Refrigerant | R-407C | |||||||
| Refrigerant control | Automatic temperature expansion valve | |||||||
| Capacity adjustment | Hot gas bypass valve＋Condenser fan control | |||||||
| Protection device | Intelligent control and protection board＋Compressor Overload Relay + Dual Pressure Controls + Thermal Relay | |||||||
| Port size | 2" | 2" | 2½" | 3" | 3" | 4"DN | 4"DN | |
Dimensions (mm) | Length | 1100 | 1300 | 1500 | 1750 | 1900 | 2150 | 2300 |
| Width | 650 | 700 | 800 | 850 | 900 | 950 | 1050 | |
| Height | 1350 | 1350 | 1550 | 1580 | 1760 | 1800 | 1850 | |
| Weight (kg) | 247 | 315 | 397 | 497 | 589 | 700 | 890 | |
| Rated conditions | ◎Inlet pressure：7㎏/㎝²G ◎Ambient temperature：45℃ ◎Inlet temperature：60 ℃ ◎Pressure dew point：5 ℃ ※（Other conditions to be corrected） | |||||||
Correction factor
1、Inlet pressure－Correction factor
1、Inlet pressure－Correction factor
| Inlet pressure (㎏/㎝²G) | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Correction factor | 0.40 | 0.55 | 0.69 | 0.81 | 0.91 | 1 | 1.07 | 1.13 | 1.17 |
2、Ambient temperature－Correction factor
| Ambient temperature (℃) | 30 | 32 | 35 | 38 | 40 | 42 | 45 |
| Correction factor | 1.10 | 1.09 | 1.06 | 1.03 | 1 | 0.94 | 0.88 |
3、Inlet temperature－Correction factor
| Inlet temperature (℃) | 50 | 55 | 60 | 65 | 70 | 75 |
| Correction factor | 1.08 | 1 | 0.94 | 0.87 | 0.80 | 0.73 |
4、Pressure dew point－Correction factor
| Pressure dew point (℃) | 2 | 5 | 10 |
| Correction factor | 1 | 1.1 | 1.2 |
The method of choosing the right type
Step 1:
Calculate the [Correction factor] = [Inlet pressure coefficient] ×[Ambient temperature coefficient] × [Inlet temperature coefficient] × [Pressure dew factor]
Step 2:
Calculate the [Flow correction] = [Maximum flow rate] ÷ [Correction factor]
Step 3:
Select [Air flow capacity] ≧ [Flow correction] models
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