The HLT series compressed air source after-treatment equipment and components are specially designed purification systems that provide high-quality compressed air for end-use equipment such as sandblasting machines, laser cutters, pneumatic tools, and automated production lines. The core function is to process the hot, humid, oil-containing, and dust-laden compressed air output from the air compressor through multiple stages of drying, filtration, and pressure stabilization, bringing it to the quality standards required by the end-use equipment. The complete after-treatment system typically consists of air receiver tanks, refrigerated air dryers, desiccant air dryers, precision filters, and automatic drain valves. The working process is as follows: the high-temperature compressed air from the air compressor first enters the air receiver tank for buffering, pressure stabilization, and initial cooling condensation, allowing some liquid water to settle and be discharged; then passes through the pre-filter to remove large particles and liquid oil/water; subsequently enters the refrigerated air dryer, which uses a refrigeration cycle to cool the compressed air to a pressure dew point of 210℃, condensing most water vapor into liquid water for separation and discharge; for applications requiring lower dew points (-20℃-70℃), the compressed air then enters the desiccant air dryer, where activated alumina or molecular sieve desiccants deeply adsorb residual moisture; finally, it passes through multi-stage precision filters to remove residual oil mist (≤0.01ppm) and dust particles (≤0.01μm), delivering high-quality clean compressed air.
In terms of manufacturing quality and structural integrity, the HLT series after-treatment equipment is manufactured in strict compliance with national and industry standards. The refrigerated air dryers use high-efficiency rotary refrigerant compressors and oversized vertical heat exchangers, equipped with high-efficiency pre-cooling and re-heating devices, ensuring stable and efficient refrigeration system performance. The heat exchangers and condensers are designed for high efficiency, improving cooling effectiveness and energy utilization. The desiccant air dryers employ PSA (Pressure Swing Adsorption) and TSA (Temperature Swing Adsorption) composite technology, with core desiccants selected from high-quality activated alumina or molecular sieves, and a twin-tower structure design ensures continuous air supply. The precision filters use centrifugal separation + gradient fiber filter element technology, with housing materials available in aluminum alloy, carbon steel, or stainless steel, and filter elements made of imported high-quality fiber materials with high filtration efficiency and long service life. The entire control system features microcomputer intelligent control or PLC control, with automatic drainage, timed regeneration, fault alarm, and other functions, enabling unattended operation.
The performance advantages and application value of the HLT series after-treatment equipment are exceptionally prominent. First, high system integration – provides a complete after-treatment solution from air receiver tanks to dryers to filters, with all components precisely matched to ensure optimal overall system efficiency. Second, excellent drying performance – refrigerated air dryers achieve a pressure dew point of 210℃, and desiccant air dryers achieve -20℃-70℃, meeting various air quality requirements. Third, high filtration precision – multi-stage precision filters remove solid particles and oil mist down to 0.01μm, with residual oil content as low as 0.01ppm, effectively protecting downstream precision equipment. Fourth, energy-efficient operation – desiccant air dryers are available in heatless regeneration mode (purge air consumption ≤14%) or heated purge regeneration mode (purge air consumption ≤4~6%), allowing selection of the most economical operating method based on requirements. Fifth, protection of downstream equipment – effectively removes moisture, oil, and dust from compressed air, preventing sandblasting media from caking, laser cutter lenses from contamination, and pneumatic components from corrosion and damage, extending equipment service life.
In terms of application scope, the HLT series after-treatment equipment is widely used in sandblasting rust removal (providing dry, clean high-pressure airflow to prevent media caking and ensure blasting quality), laser cutting (providing oil-free, water-free auxiliary gas to protect optical lenses), machinery manufacturing (driving precision pneumatic components and instruments), automotive manufacturing (painting, assembly pneumatic tools), electronics and power (precision instrument air supply), food and medical (clean compressed air), petrochemical (instrument air), as well as textile, pharmaceutical, and other industrial fields with strict compressed air quality requirements. The HLT series compressed air source after-treatment equipment is an indispensable supporting purification system in modern industrial production.
| 1. HLT Series Refrigerated Compressed Air Dryers | ||||||||
|---|---|---|---|---|---|---|---|---|
| Model | Treatment Air Flow(m³/min) | Inlet Temp.(℃) | Working Pressure(MPa) | Pressure Dew Point(℃) | Cooling Type | Refrigeration Power(kW) | Overall Dimension(L×W×H mm) | Weight(kg) |
| HLT-FD-1 | 1.0~1.5 | ≤45 | 0.6~1.0 | 2~10 | Air-cooled | 0.6 | 600×400×700 | 45 |
| HLT-FD-3 | 3.0~3.6 | ≤45 | 0.6~1.0 | 2~10 | Air-cooled | 1.2 | 800×500×900 | 80 |
| HLT-FD-6 | 6.0~6.5 | ≤45 | 0.6~1.0 | 2~10 | Air/Water-cooled | 2.0 | 1000×600×1100 | 140 |
| HLT-FD-10 | 10.0~12.0 | ≤45 | 0.6~1.0 | 2~10 | Air/Water-cooled | 3.5 | 1200×700×1200 | 220 |
| HLT-FD-20 | 20.0~23.0 | ≤45 | 0.6~1.0 | 2~10 | Air/Water-cooled | 6.0 | 1400×800×1400 | 350 |
| HLT-FD-30 | 30.0~35.0 | ≤45 | 0.6~1.0 | 2~10 | Water-cooled | 9.0 | 1600×900×1500 | 480 |
| HLT-FD-50 | 50.0~55.0 | ≤45 | 0.6~1.0 | 2~10 | Water-cooled | 15.0 | 1800×1000×1600 | 650 |
| HLT-FD-100 | 100.0~110.0 | ≤45 | 0.6~1.0 | 2~10 | Water-cooled | 30.0 | 2200×1200×1800 | 1200 |
| Note: Rated air flow is tested under standard working conditions: inlet temperature 35℃, working pressure 0.7MPa. High-temperature type optional with max inlet temperature ≤80℃. | ||||||||
| 2. HLT Series Desiccant Compressed Air Dryers | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Treatment Air Flow(m³/min) | Working Pressure(MPa) | Pressure Dew Point(℃) | Regeneration Type | Regeneration Air Consumption | Desiccant Media | Cycle Time(min) | Overall Dimension(L×W×H mm) | Weight(kg) |
| HLT-XG-1 | 1.0 | 0.6~1.0 | -20~-40 | Heatless Regeneration | ≤14% | Activated Alumina | 10 | 800×400×1400 | 180 |
| HLT-XG-3 | 3.0 | 0.6~1.0 | -20~-40 | Heatless Regeneration | ≤14% | Activated Alumina | 10 | 1000×500×1600 | 300 |
| HLT-XG-6 | 6.0 | 0.6~1.0 | -20~-40 | Heatless/Heat Regenerated | ≤14%/≤6% | Activated Alumina/Molecular Sieve | 10/60~180 | 1200×600×1800 | 500 |
| HLT-XG-10 | 10.0 | 0.6~1.0 | -20~-40 | Heatless/Heat Regenerated | ≤14%/≤6% | Activated Alumina/Molecular Sieve | 10/60~180 | 1400×700×2000 | 750 |
| HLT-XG-20 | 20.0 | 0.6~1.0 | -20~-40 | Heat Regenerated | ≤4~6% | Activated Alumina/Molecular Sieve | 60~180 | 1600×800×2200 | 1200 |
| HLT-XG-30 | 30.0 | 0.6~1.0 | -20~-40 | Heat Regenerated | ≤4~6% | Activated Alumina/Molecular Sieve | 60~180 | 1800×900×2400 | 1600 |
| HLT-XG-50 | 50.0 | 0.6~1.0 | -20~-40 | Heat Regenerated | ≤4~6% | Activated Alumina/Molecular Sieve | 60~180 | 2000×1000×2600 | 2200 |
| Note: Standard cycle for heatless regeneration is 10 mins; heat regenerated cycle ranges 60~180 mins. Inlet air oil content required ≤0.01ppm. | |||||||||
| 3. HLT Series Compressed Air Precision Filters | ||||
|---|---|---|---|---|
| Filter Grade | Filtration Precision(μm) | Residual Oil Content(ppm) | Application Scenarios | Model Prefix |
| Grade C (Water-Oil Separator) | 3 | ≤5 | Pre-filter, remove massive liquid water & oil mist | HLT-C |
| Grade T (Main Line Filter) | 1 | ≤1 | Main pipeline filtration | HLT-T |
| Grade A (High-efficiency Oil Removal) | 0.01 | ≤0.01 | Post precision filtration | HLT-A |
| Grade H (Activated Carbon Deodorization) | 0.01 | ≤0.003 | Remove oil vapor & peculiar smell | HLT-H |
| Grade AD (Sterile Filter) | 0.01 | — | Food, medical and other sterile air requirements | HLT-AD |
| 4. HLT Series Aftercoolers | |||||
|---|---|---|---|---|---|
| Model | Treatment Air Flow(m³/min) | Inlet Temp.(℃) | Outlet Temp.(℃) | Working Pressure(MPa) | Cooling Type & Dimension(L×W×H mm) |
| HLT-HL-3 | 3.0 | ≤150 | ≤45 | ≤1.0 | Air-cooled, 800×400×600 |
| HLT-HL-6 | 6.0 | ≤150 | ≤45 | ≤1.0 | Air-cooled, 1000×500×700 |
| HLT-HL-10 | 10.0 | ≤150 | ≤45 | ≤1.0 | Air/Water-cooled, 1200×600×800 |
| HLT-HL-20 | 20.0 | ≤150 | ≤45 | ≤1.0 | Air/Water-cooled, 1400×700×900 |
| 5. Air Storage Tanks (Optional) | ||||
|---|---|---|---|---|
| Volume(L) | Design Pressure(MPa) | Material | Dimension(Dia.×Height mm) | Weight(kg) |
| 200 | 1.0 | Q345R | φ500×1500 | 120 |
| 300 | 1.0 | Q345R | φ550×1700 | 160 |
| 500 | 1.0 | Q345R | φ650×1900 | 240 |
| 800 | 1.0 | Q345R | φ750×2100 | 340 |
| 1000 | 1.0 | Q345R | φ800×2300 | 400 |
| 6. Automatic Drain Valves (Optional) | |
|---|---|
| Item | Specification |
| Type | Float Ball Auto Drain / Electronic Timed Drain |
| Drain Mode | Fully automatic operation |
| Port Size | 1/2”, 3/4” (optional) |
| 7. General Application Parameters & System Layout | |
|---|---|
| Applicable Industries | Sandblasting & rust removal, laser cutting, machinery manufacturing, automotive production, electronics & power, food & medical, petrochemical, textile & pharmaceutical |
| Recommended System Layout | Air Compressor → Air Tank → Pre-filter → Refrigerated Dryer → (Desiccant Dryer) → Precision Filter → Air End User |
| Filter Installation Sequence | Grade C → Grade T → Grade A → Grade H → Grade AD (Install step-by-step, skipping any level is forbidden) |
| Air Quality Compliance | Meets all classification requirements of ISO 8573-1 Compressed Air Purity Standard |
| 8. Complete Post-processing Equipment Composition | |
|---|---|
| Main Components |
Refrigerated air dryer (refrigerant compressor, condenser, evaporator, heat exchanger, refrigeration circuit); Desiccant air dryer (dual drying towers, desiccant media, switching valves, regeneration heater); Precision filter (housing, filter element, differential pressure indicator); Aftercooler (radiator, cooling fan); Air storage tank (pressure vessel, safety valve, drain valve); Automatic drain valve; Intelligent control system (microcomputer / PLC controller) and related piping assemblies. |
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