Waste Heat Regenerative Dryer Utilizes the heat generated during gas compression to directly heat the adsorbent in the drying tower for desorption. We know that regardless of the type of compressor, a large amount of compression heat is generated when compressing gas; therefore, the compressor should be equipped with a cooler to cool the gas to room temperature after compression. Then, it is sent to downstream equipment for drying. In this way, a large amount of thermal energy is wasted. The waste heat regenerative dryer uses this part of the energy. Therefore, no compressed air is consumed during the heating regeneration process, while 2% of the drying compressed air is consumed during the cold blowing process. The waste heat of the compressor is fully utilized to complete the regeneration of the adsorbent, eliminating the need for blowers and electric heaters. It can save 70% of energy. In today's energy crisis, it is indeed an ideal energy-saving dryer.

Its basic principle is similar to the traditional temperature swing adsorption process. That is, the adsorbent adsorbs water during the adsorption process. During the regeneration process, waste heat from the compressor, gas above 110℃, is used as regeneration gas and enters the drying tower. Relying on the heat diffusion of hot air, it precipitates from the regeneration gas and carries the water vapor out of the drying tower to completely remove the adsorbed water. In order to cool the bed to meet the needs of the next stage of adsorption work and to avoid unstable dew points at the air outlet due to the bed temperature, a zero gas consumption cooling method is used. All waste heat gas from 110℃ to above 40℃ in water cooler I is used as regeneration cooling gas to cool the regeneration tower to cool the adsorbent. After cooling, the temperature rises again, and then it is cooled to 40℃ in water cooler II before entering the drying tower. After adsorption and drying, it flows out. The entire process consumes no fuel gas and has no electricity-consuming equipment such as electric heaters and fans. It can be said that the zero gas consumption waste heat regenerative dryer is an energy-saving product.

Energy saving and environmental protection have always been an important development direction in the gas engineering industry. The zero gas consumption waste heat regenerative dryer has many technical advantages and fully complies with the national advocacy of energy saving and environmental protection. Taking a zero gas consumption dryer with a flow rate of 200Nm3/min as an example, let's understand the technical advantages of the zero gas consumption dryer.

1. The energy consumption of the zero gas consumption waste heat regenerative dryer is 0.2KW, which is almost negligible, and the whole machine is close to zero energy consumption.

2. The zero gas consumption waste heat regenerative dryer matches the exhaust gas temperature of the air compressor, fully utilizing the waste heat of the air compressor for regeneration. It does not require fans and heaters to participate in the regeneration process. The heater and blower have no power consumption, reducing the failure rate of equipment caused by fans and heaters.

3. Zero gas consumption Waste heat regenerative dryer A bypass pipeline has been added. When equipment (mainly the drying tower) malfunctions, it can be switched to the bypass pipeline in time without affecting the required gas volume at the back end, ensuring stable production. The process is that the high-temperature compressed air discharged from the air compressor is cooled to below 40℃ by the cooler in the dryer, the liquid water is separated by the gas-water separator, and after passing through the post-dust filter, it is directly output to the downstream gas point.

4. The pressure dew point of the compressed air is stable at -20℃ for a long time without significant fluctuations.

5. The PLC control system and large-size true color display screen can display various operating statuses and data curves, facilitating on-site operation, management, and maintenance for users.