1. Protect downstream equipment: The temperature of the air is greatly increased after compression by the compressor, and directly entering the downstream equipment will cause damage. For example, high temperatures may cause the seals of pneumatic tools to age and deform, shortening the service life of tools. The aftercooler cools the high temperature compressed air to close to the ambient temperature or a specific temperature range, protecting the equipment from high temperatures.
2. Optimize the physical properties of the gas: according to the gas equation of state, when the volume of a certain mass of gas is unchanged, the temperature is reduced, and the pressure will be reduced accordingly. This facilitates the subsequent handling and utilization of compressed air and reduces the risk of excessive pressure in the system.
3. Promote condensation of water vapor: hot compressed air contains a lot of water vapor, after cooling, water vapor reaches the dew point temperature will condense into liquid water. The aftercooler speeds up this condensation process through efficient heat exchange. For example, in a humid environment, the air compressed by the compressor has a high water content, and the aftercooler can effectively condense a large amount of water vapor in it.
4. Improve air quality: If liquid water enters the system with compressed air, it will corrode pipes and reduce the performance of pneumatic equipment. The aftercooler, combined with the gas-water separator, can remove most of the liquid water and provide dry compressed air to ensure the stable operation of downstream equipment. For example, in the spraying industry, if the compressed air contains water, it will lead to quality problems such as bubbles and peeling of the coating, and the air after water removal by the aftercooler can avoid such situations.
| Model | Nominal flow rate | Air connection | Cooling water connection | Dimensions (mm) | weight (kg) | ||
| m3/min | L | w | H | ||||
| RSHS-100 | 10 | DN50 | Rc 1" | 1372 | 250 | 250 | 65 |
| RSHS-170 | 17 | DN65 | Rc 1-1/2" | 1401 | 285 | 285 | 90 |
| RSHS-220 | 22 | DN65 | Rc 1-1/2" | 1401 | 285 | 285 | 100 |
| RSHS-270 | 27 | DN80 | Rc 2" | 1427 | 340 | 340 | 145 |
| RSHS-350 | 35 | DN80 | Rc 2" | 1427 | 340 | 340 | 160 |
| RSHS-400 | 40 | DN100 | DN65 | 1776 | 405 | 547 | 225 |
| RSHS-500 | 50 | DN100 | DN65 | 1776 | 405 | 547 | 240 |
| RSHS-600 | 60 | DN100 | DN65 | 1776 | 405 | 547 | 260 |
| RSHS-700 | 70 | DN125 | DN65 | 2306 | 405 | 577 | 285 |
| RSHS-1000 | 100 | DN150 | DN80 | 2896 | 520 | 689 | 520 |
| RSHS-1200 | 120 | DN150 | DN80 | 2896 | 520 | 689 | 530 |
| RSHS-1500 | 150 | DN200 | DN80 | 2896 | 520 | 689 | 550 |
| RSHS-2000 | 200 | DN200 | DN125 | 3405 | 580 | 801 | 740 |
| RSHS-2500 | 250 | DN200 | DN125 | 3405 | 580 | 801 | 810 |
| RSHS-3000 | 300 | DN250 | DN150 | 3663 | 680 | 923 | 1130 |
| RSHS-3500 | 350 | DN250 | DN150 | 3663 | 680 | 923 | 1245 |
| RSHS-4000 | 400 | DN300 | DN150 | 3703 | 730 | 1016 | 1350 |


Applications
Food processing:
The food processing industry has high requirements for health and safety. In the process of food production, compressed air is widely used in food transportation, mixing, packaging and other links. For example, on the biscuit production line, compressed air is used to transport the dough to the forming machine and to drive the packaging equipment to complete the packaging of the biscuits.
If the compressed air contains water, oil or impurities, it is easy to pollute food and cause food safety problems. At the same time, the humid air may also lead to the rust of the packaging equipment, affecting the normal operation of the equipment and the packaging quality of the food.
Industrial air compressor aftercooler can remove the water and oil in the compressed air, reduce the air temperature, and prevent the impact of high temperature on food quality. The clean, dry and temperature-appropriate compressed air treated by the aftercooler not only ensures the hygiene and safety of the food, but also ensures the stable operation of the packaging equipment, maintains the freshness and quality of the food, and meets the strict requirements of consumers for food safety and quality.
Beverage filling:
In the beverage production line, from the blow molding of beverage bottles to the precise filling of beverages, it is inseparable from the support of compressed air. For example, plastic particles are blown into beverage bottles by compressed air, and the use of compressed air to drive filling equipment to accurately inject beverages into the bottle.
Beverage products have strict requirements for hygiene and quality, and humid compressed air may lead to water droplets on the inner wall of the beverage bottle, contaminating the beverage and causing microbial growth. At the same time, the high temperature air may affect the taste and stability of the beverage.
The aftercooler cools and cleans the compressed air entering the beverage production equipment to ensure that the compressed air meets the health standards, provides a stable and clean air source for the blow molding and filling process of the beverage bottle, avoids the deterioration of the beverage or the damage of the packaging container due to air problems, ensures the quality and production efficiency of the beverage products, and meets the high requirements of the market for the quality of the beverage.
FAQ:
1. How to clean its heat sink?
The compressed air can be used to blow out dust and debris from the back of the heat sink (air intake side). For stubborn dirt, you can use a special cleaner to spray on the heat sink, and then rinse with water, but be careful to avoid water into the air path part of the inner cooler. The cleaning frequency depends on the dust level of the environment, and is generally carried out at least once a month.
2. What should I do if the cooling water pipeline is scaled?
Chemical cleaning method can be used, the use of special scaling agent according to a certain proportion of dilution, circulation through the cooling water pipeline, dissolve the scale. After cleaning, rinse the pipe thoroughly with clean water to remove residual detergent. Physical cleaning can also be used, for example, using a high-pressure water gun or mechanical scraper to remove hard scale layers. However, physical cleaning may damage the inner wall of the pipe. Therefore, exercise caution when performing this operation.
3. What are the precautions for connecting pipes during installation?
The connecting pipes should be well sealed to prevent gas leakage. The caliber of the pipe should match the size of the inlet and outlet of the aftercooler to reduce pressure loss. For longer pipes, support and fixing devices should be considered to avoid stress damage to the aftercooler interface caused by the dead weight of the pipe.
4. What are the main points of cooling water pipe installation?
Cooling water pipes should be installed with regulating valves in order to control the flow of cooling water and adjust the cooling effect. A filter should be set to prevent impurities in the water from entering the inside of the aftercooler and causing blockage. At the same time, the connection of the pipeline should comply with the relevant water supply and drainage specifications to ensure that the waterway circulation is smooth, and the drainage valve should be installed to facilitate the drainage of the water in the pipeline when the equipment is shut down to prevent freezing in winter.
5. What about the sudden increase in pressure loss?
It may be that the internal channel is blocked by foreign matter, such as impurities, rust, etc., accumulated in the heat exchange tube bundle or gas path channel. It may also be the gas-water separator failure, resulting in the separation of liquid water can not be discharged in time, accumulated in the equipment, obstructing the flow of air through. In addition, the abnormal opening of the inlet and outlet valve of the aftercooler may also cause increased pressure loss, and the valve status needs to be checked and adjusted accordingly.

