portable compressed air dryers
 

Detailed Photos

If you are looking for more details, kindly visit NAILI.

(1) Air-cooled combined dryer


Technological Process of the Combined Low Dew Point Compressed Air Dryer

 

Symbol

Name

Symbol

Name

1

Refrigerant Compressor

15

Air Pressure Gauge

2

Oil Separator

16

Heat Exchanger

3

Condenser

17

Pressure Relief Valve

4

Dryer Filter

18,19

Check Valve

5

Sight Lens

20,21

Check Valve(Heat Type)

6

Bulge Thermal Expansion Valve

22,23,24,25

Pneumatic Valve

7

Hot Gas Bypass Valve

26,29,30,33

Diffuser

8

Vaporizer

27,31

Air Pressure Gauge

9

Humidity Sensor

28,32

Adsorption Vessel

10

Evaporator

34,35,36,37

Pilot Solenoid Valve

11

Refrigerant
Low Pressure Gauge

38

Muffler

12

Refrigerant
Low Pressure Gauge

39

Flow Regulating Valve(Heatless Type)

13

High and Low Pressure Controller

40

Throttling Orifice Plate(Heat Type)

14

Gas Liquid Separator

41

Electical Heater(Heat Type)

       

 General Introduction: 
Commonly, there are two kinds of compressed air dryer: refrigerated compressed air dryer and regeneration adsorption one. The refrigerated compressed air dryer is quite energy-saving without any air loss, While it is limited by the dew point temperature. The regeneration adsorption compressed air dryer can reach a quiet low dew point, but it has the shortcoming of big air loss and high energy consumption.
The SHANLI combined low dew point compressed air dryer takes the maximum advantages of the above two kinds of dryers through reasonable pipeline connection and capacity matching, which ensure its economic operation and high quality of low dew point finished air.
 Operating Principle:
Firstly, the hot and wet compressed air from the compressor is heat exchange with dried cold compressed air in the heat exchanger. Then it will be cooled down to about 2ºC by evaporator. Under this pressure dew point, the majority of vapor water in the compressed air is eliminated and discharged. After these processes, the low temperature air goes into the heat exchanger to cool the high wet compressed air, at the same time, itself temperature goes up in order to prevent the condensation of dew on the surface of pipelines. Last, low moisture compressed air dryer goes into the adsorption vessel to be further dried  in order to get the good dew point.

 

(2) Water-Cooled Combined Type Air Dryer

Working condition and technical data
Maximum inlet air temperature:45ºC
Ambient temperature range:5-50ºC
Pressure range:0.6-1.0Mpa
Pressure dew point:-20ºC ~ -40ºC
Regeneration gas consumption:3-5%
Cooling mode: water cooling (industrial circulating cooling water)
Cooling water pressure range: 0.2-0.4mpa
Maximum cooling water inlet temperature: 38 ºC
Intake oil content: &#; 0.1ppm
Power supply: 6-12nm 3 / min: AC 220 V / 50 Hz
15nm3 / min and above: AC 380V / 220V / 50Hz
Cycle: T = 40 (min)
Refrigerant: R22 (R407C / R134a optional)
Design condition: inlet temperature: 38 ºC
Ambient temperature: 38 ºC
Working pressure: 0.7MPa
Cooling water inlet temperature: 32 ºC
Pressure loss: &#; 5% of design pressure
Note: the water-cooled equipment above 80 cubic meters are split bare machines. Other special requirements are welcome to customize.

Product features

1. Low dew point:The combined low dew point dryer can reach very low pressure dew point, which can reach below - 40 ºC in general, and - 70 ºC at least according to different user requirements;

2. Low energy consumption: the regeneration gas consumption of combined low dew point dryer is only 3% - 5%, which greatly saves the compressed air consumption;

3. It can provide compressed air with different dew points for different air consumption points;

4. All the operation switches and display instruments of the combined low dew point compressed air dryer are concentrated on the panel of the box plate. The refrigeration type compressed air dryer and the adsorption regeneration compressed air dryer can operate independently or simultaneously with cold and suction according to the customer's needs;

5. The gas-liquid separator adopts the patented three-stage separation mode: direct collision separation + low-speed centrifugal separation + stainless steel wire mesh demisting separation. 99.9% of liquid water is separated from the cooled compressed air. The second evaporation of textile moisture can ensure the low dew point quality of finished gas.

6. High quality switching valve, stable and reliable, can ensure the integrity of the working process and prolong the working life of components.

7. The refrigeration compressor adopts Danfoss of Denmark, Fusheng of Taiwan, Panasonic of Japan, Bitzer of Germany, Copeland of Germany, maneurop of France and other companies of fully closed or semi closed refrigeration compressor, which has stable operation, low noise, high cop, reliable performance and long power saving life;

 

Product Parameters

(1) Air-Cooled Combined Type Air Dryer specification

 

Model     

  Item

Air capacity
(Nm3/min)

Desiccant weight(kg)

Air connector dia

Refrigerant power
(HP)

Air flow
(Nm3/h)

Fan power(W)

Voltage

(V)

Dryer Net Weight
(kg)

Length(mm)

Wideth(mm)

Height(mm)

SDZF-1

1.2

25

G1"

1/2

745

1×50

220

400

850

SDZF-2

2.5

40

G1"

1/2

745

1×50

220

440

900

SDZF-3

3.6

60

G1"

3/4

1×100

220

460

SDZF-4.5

5

85

G1 1/2"

1

1×135

220

660

SDZF-6

6.8

105

G1 1/2"

1.5

1×230

220

775

SDZF-8

8.5

150

G2"

2

2×135

220

970

SDZF-10

10.9

185

G2"

2.5

2×135

220

SDZF-12

12.8

185

G2"

2.5

2×135

220

SDZF-15

16

310

DN65

3

2×190

380/220

SDZF-20

22

395

DN65

4

2×190

380/220

SDZF-25

26.8

492

DN80

5

2×230

380/220

SDZF-30

32

600

DN80

6

2×230

380/220

SDZF-40

43.5

725

DN100

7

2×420

380/220

If you want to learn more, please visit our website china water cooled air dryer suppliers.

Additional resources:
How Does Electric Vehicle Charging Work?

SDZF-50

53

855

DN100

10

3×230

380/220

SDZF-60

67

DN125

12

3×420

380/220

SDZF-80

90

DN125

13.3

4×420

380/220

 

 

Note:Design conditions: working pressure: 7bar, inlet temperature: 38ºC, pressure dew point: -20ºC

(2) Water-Cooled Combined Type Air Dryer
 

Product specifications

model

Air capacity
(Nm3/min)

Weight of desiccant(kg)

Air nozzle diameter

Diameter of cooling water pipe

Cooling power
(HP)

Cooling water flow
(Nm3/h)

Voltage
(V)

Equipment weight
(kg)

L(mm)

W(mm)

H(mm)

SDZW-6

6.8

105

G1 1/2"

R1"

1.5

1.2

220

760

SDZW-8

8.5

150

G2"

R1"

2

1.2

220

960

SDZW-10

10.9

185

G2"

R1"

2.5

1.6

220

SDZW-12

12.8

185

G2"

R1"

2.5

1.8

220

SDZW-15

16

275

DN65

R1"

3

2

380/220

SDZW-20

22

395

DN65

R1 1/2"

4

3

380/220

SDZW-25

26.8

495

DN80

R1 1/2"

5

3.6

380/220

SDZW-30

32

605

DN80

R1 1/2"

6

4.6

380/220

SDZW-40

43.5

725

DN100

R1 1/2"

7

5.6

380/220

SDZW-50

53

860

DN100

R1 1/2"

10

7.2

380/220

SDZW-60

67

DN125

R1 1/2"

12

9.2

380/220

SDZW-80

90

DN125

R1 1/2"

13.3

10.8

380/220

SDZW-100

110

DN150

R1 1/2"

20

12.4

380/220

SDZW-120

130

DN150

R2"

25

14.6

380/220

SDZW-150

160

DN200

R2"

25

16.2

380/220

SDZW-200

210

DN200

R2 1/2"

40

18.6

380/220

SDZW-250

260

DN250

R2 1/2"

60

24.4

380/220

Detailed parameters and consultation with manufacturers

SDZW-300

315

DN250

R3"

70

30.5

380/220

Detailed parameters and consultation with manufacturers

 

Optional Accessories

• Micro heat type

• Dew point display

• Dew point energy saving control

• Special voltage

• Environmental refrigerant

• - 70 ºC dew point

• Not limited to this

Company Profile

 

Certifications

 

Packaging & Shipping

 

FAQ

 

Compressed Air Dryer Manufacturer

Naili is the world's leading specialist manufacturer of rotary vane compressors and high performance oil-injected two-stage compression and oil-free piston compressors!

We were founded in ; we have 723 people working in the Nelly Group (reported in January ); we have a factory plant of 50,700 m².

We bring you a better selection of rotary vane compressors, oil-free piston compressors and optional solutions for various industries and transportation ancillary equipment!

Working Principle

The industrial air dryer for compressors is based on the principle of freezing and dehumidification, which provides forced cooling of compressed air containing a large amount of saturated water vapor. While keeping the compressed air pressure basically unchanged, the temperature of the compressed air is reduced so that the large amount of water vapor in the compressed air is reduced.

It is in a supersaturated state. In the saturated state, water vapor condenses into liquid water droplets and entraps dust, which is separated from water and dust through a vapor separator and discharged through an automatic drain, thus achieving the purpose of freezing and dehumidifying.

Want more information on oil free compressor supplier? Feel free to contact us.