Water Cooled Aftercooler HAW Series
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*The information above is correct as of December 2018. - See catalog for specification details.
- Product images may be representative images. Refer to the manufacturer's catalog for shape details.
Product Description
Water-cooled aftercooler that enables checking of the outlet air temperature with a thermometer and allows easy maintenance.
[Features]
· Cools high temperature compressed air from a compressor down to 40°C or less and removes moisture from the air.
· The HAW Series is water-cooled to ensure stable performance even under conditions of high temperature and humidity and in areas with a lot of dust.
· The flower fin tube has 25 times the heat transfer area of a bare tube.
· The flower fin with complex needle-like shape creates air turbulence resulting in even heat exchange and high cooling efficiency.
· High drain separation.
· Visible outlet air temperature.
Water Cooled Aftercooler HAW Series Features
Water Cooled Aftercooler HAW Series JIS symbol
Specifications
| Model | HAW2 | HAW7 | HAW22 | HAW37 | HAW55 | HAW75 | HAW110 | ||
|---|---|---|---|---|---|---|---|---|---|
| Applicable compressor (kW) | Screw type compressor | 2.2 | 7.5 | 22 | 37 | 55 | 75 | 110 | |
| Reciprocating type compressor | 2.2 | 7.5 | 15 | 22 | 37 | 55 | 75 | ||
| Rated conditions | Air flow capacity L/min (ANR)*1 | Screw type compressor | 300 | 1,000 | 3,300 | 5,700 | 8,600 | 12,000 | 18,000 |
| Reciprocating type compressor | 300 | 1,000 | 2,100 | 4,300 | 5,600 | 8,000 | 11,000 | ||
| Inlet air temperature (°C) | Screw type compressor | 70 | |||||||
| Reciprocating type compressor | 70 | 180 | |||||||
| Inlet air pressure dew point (°C) | 67 | ||||||||
| Inlet air pressure (MPa) | 0.7 | ||||||||
| Cooling water flow (L/min) | 5 | 5 | 17 | 25 | 36 | 40 | 45 | ||
| Cooling water inlet temperature (°C) | 30 | ||||||||
| Outlet air temperature (°C) | 40 | ||||||||
| Cooling water pressure drop (MPa) | 0.002 | 0.02 | 0.03 | 0.06 | 0.03 | ||||
| Operating range | Applicable fluid | Air: compressed air, Cooling water: industrial water, tap water | |||||||
| Inlet air temperature (°C) | 5 to 100 | 5 to 200 | |||||||
| Inlet air pressure (MPa) | 0.05 to 1.0 (With auto drain: 0.15 to 1.0) | 0.05 to 0.97 (With auto drain: 0.3 to 0.97) | |||||||
| Ambient temperature (°C) | 2 to 50 | ||||||||
| Proof pressure (MPa) | 1.5 | ||||||||
| Piping connection port diameter | Air side | Rc1/2 | Rc3/4 | Rc1 1/2 | Rc2 | 3B JIS 10K FF flange | |||
| Cooling water side | Rc1/2 | Rc3/4 | Rc1 | Rc1 1/4 | |||||
| Drain side | Rc1/2 | Rc3/4 | Rc1 | ||||||
| Weight (kg) | 9.7 | 11.5 | 32 | 59 | 67 | 78 | 95 | ||
| Accessories*2 | Drain valve (1 pc.) | Rc1/2 | Rc3/4 | Rc1 | |||||
| Outlet air thermometer (1 pc.) | R1/2 (Temperature range: 0 to 150°C) | ||||||||
*1: ANR is the value at 20°C, atmospheric pressure and relative humidity 65%.
*2: Accessories should be mounted by the user.
How to Calculate Outlet Air Temperature
The outlet air temperature can be calculated by the inlet air temperature, cooling water temperature and air flow capacity using the following procedure.
(Example) Inlet air temperature: 100°C, Cooling water temperature: 20°C, Cooling water flow: 17 L/min
Air flow capacity: 2,000 L/min (ANR), Air pressure: 0.7 MPa, Model: HAW22-14
Correction factor by cooling water temperature (pressure 0.7 MPa)
- 1. Use an outlet air temperature of 37°C from the Outlet Air Temperature table. In this case, use correction line A.
- 2. Next, use the correction factor by cooling water temperature chart to obtain a correction factor of 1.3 at the water cooling temperature of 20°C on line A.
- 3. Divide 37°C (from step 1) by 1.3 (from step 2) to obtain the outlet air temperature.
Outlet air temperature = 37 ÷ 1.3 = 28.5°C
Structure Principle Diagram
Structure Principle Diagram
Dimensions
HAW2, 7
Dimensions: HAW2, 7
HAW22 to 110
Dimensions: HAW22 to 110
(Unit: mm)
| Model | A | B | C | D | E | F | øG | H | J | K | L | M | N | P | Q | R | S | T | øU | V | W | Y | Z | ZA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HAW2-04 | 360 | 190 | 83 | 35 | 270 | 35 | 130 | 203 | 159 | 159 | 182 | 193 | 60 | - | 60 | - | 94 | 4.5 | 10 | 1/2 | 1/2 | 1/2 | - | - |
| HAW7-06 | 570 | 390 | 83 | 35 | 480 | 35 | 130 | 203 | 159 | 159 | 182 | 193 | 60 | - | 60 | - | 94 | 4.5 | 10 | 3/4 | 1/2 | 1/2 | - | - |
| HAW22-14 | 948 | 575 | 212 | 37 | 704 | 138 | 165 | 266 | 245 | 215 | 215 | 238 | 90 | 120 | 60 | 120 | 150 | 4.5 | 12 | 1 1/2 | 3/4 | 3/4 | 359 | 371 |
| HAW37-14 | 1,354 | 893 | 258 | 80 | 1,056 | 170 | 216 | 324 | 264 | 219 | 242 | 289 | 100 | 140 | 66 | 140 | 139 | 6.0 | 18 | 1 1/2 | 3/4 | 1 | 380 | 431 |
| HAW55-20 | 1,612 | 1,038 | 366 | 150 | 1,203 | 276 | 216 | 324 | 264 | 219 | 242 | 289 | 100 | 140 | 66 | 140 | 139 | 6.0 | 18 | 2 | 3/4 | 1 | 375 | 426 |
| HAW75-20 | 2,112 | 1,538 | 366 | 150 | 1,703 | 276 | 216 | 324 | 264 | 219 | 242 | 289 | 100 | 140 | 66 | 140 | 139 | 6.0 | 18 | 2 | 3/4 | 1 | 375 | 426 |
| HAW110-30 | 1,724 | 950 | 500 | 72 | 1,210 | 365 | 267.3 | 473 | - | - | 317 | 357 | 200 | 220 | 70 | - | 195 | 8.0 | 18 | 3 | 1 | 1 1/4 | 395 | 473 |
Precautions
Caution on Design
Warning
- 1. If the supply of coolant water is disrupted, the system will overheat, creating a dangerous situation. Therefore, make sure to take safety measures against water failure.
- 2. An excess or insufficient flow of coolant water can damage the heat exchanger tube. Therefore, design within the rated water flow range (refer to the standard specifications column).
Caution
- 1. Design the piping for coolant water and compressed air with a bore that is greater than the bore of the piping connections.
- 2. The quality of the coolant water to be used must exceed the water quality that has been specified by the Japan Refrigeration and Air Conditioning Industry Association. (Refer to the instruction manual.) Poor quality coolant water damages the heat exchanger and reduces performance, Therefore, inspect the water quality and replace the circulating water on a regular basis.
- 3. Use tap water or industrial water for coolant water. Never use sea water.
Mounting
Caution
- 1. Install the unit horizontal to the pipe line.
- 2. Make sure to correctly connect the compressed air inlet/outlet and the coolant water inlet/outlet.
- 3. Use union joints to connect the coolant water pipes so that they can be easily removed during maintenance.
- 4. Connect a drain pipe because a large amount of drainage is created when the compressed air is cooled.
The drain pipe must have a minimum pipe bore of 10 mm and a maximum length of 5 m (when installing an optional auto drain).
Mounting
Caution
- 1. Inspect the quality of the coolant water and replace the circulating water on a regular basis. If the coolant water is cooled in a cooling tower, it is susceptible to the adhesion of water scale, so replace the coolant water regularly.
- 2. If there is a likelihood that the coolant water will be frozen, drain the coolant water to prevent damage. Also, drain the coolant water when the equipment will not be used for a long period of time.
- 3. If the cooling performance decreases, clean the inside of the coolant water pipes. (Refer to the instruction manual for details on the cleaning method.)
- *See the manufacturer's catalog for other specifications, etc.