Heatless Regenerative Adsorption Dryer

Overview

Through a concise and efficient design, Yipu Heatless Regenerative Adsorption Dryer delivers three core values to users:

1. Outstanding Economy: Low equipment investment cost, suitable for budget-constrained users; simple maintenance and low total lifecycle cost.
2. Wide Applicability: Suitable models available for small workshops to medium-sized factories; ideal for special working conditions without external heat sources, featuring high reliability.
3. High Stability: No heating elements, resulting in low failure rate; microcomputer-controlled for stable and reliable operation.

This product is particularly suitable for small and medium-sized manufacturing enterprises with low air consumption, limited budgets, and weak maintenance capabilities, serving as a cost-effective compressed air drying solution.

I. Market Pain Point Analysis

1. Pressure of Equipment Investment Cost
   • Heated regenerative equipment requires a heating system, leading to high initial investment.
   • Small enterprises with limited budgets need economical and practical drying solutions.
2. Installation Space Constraints
   • Traditional large-scale drying equipment occupies a large area, making it unsuitable for factories with limited space.
   • Foundation-free installation is required to reduce construction complexity and costs.
3. Demand for Simple Operation and Maintenance
   • Complex equipment requires professional technicians for maintenance.
   • Small and medium-sized enterprises lack professional maintenance teams and need user-friendly “plug-and-play” equipment.
4. Energy-Sensitive Applications
   • No external heat source available for heated regenerative equipment.
   • Application scenarios sensitive to power consumption.

II. System Process Flow

Dual-Tower Rapid Cycle System:

1. Adsorption Drying Stage
   • Compressed air (0.6-1.0MPa, ≤45℃) enters Adsorption Tower A.
   • Passing through an activated alumina or molecular sieve bed, moisture is adsorbed via capillary action.
   • Dry air with a pressure dew point of -20℃ or -40℃ is produced.
2. Regeneration and Desorption Stage
   • Approximately 12-15% of the dry finished air enters Tower B after pressure reduction.
   • Low-pressure air purges and regenerates the saturated adsorbent.
   • Desorbed moisture is discharged from the system along with the regeneration airflow.
3. Pressure Equalization and Switching Stage
   • At the end of the 10-minute cycle, pressure equalization is performed between the two towers.
   • The microcomputer control system automatically switches valves, and the roles of the towers are swapped.

Continuous Working Mode:

• Tower A: Adsorption (8 minutes) → Pressure Equalization (1 minute) → Regeneration (1 minute)
• Tower B: Regeneration (8 minutes) → Pressure Equalization (1 minute) → Adsorption (1 minute)

III. Technical Principle

Adsorption Mechanism:

• Utilizes the large specific surface area of activated alumina (300-400m²/g).
• Capillary action adsorbs water molecules into the microporous structure.
• Strong selective adsorption of water molecules (2.8Å) by 5A molecular sieve (pore size 5Å).

Regeneration Principle:

• Reduces partial pressure to break the adsorption equilibrium (Pressure Swing Adsorption, PSA).
• Dry purge gas carries away desorbed water molecules.
• Regeneration is achieved through pressure changes without external heat.

IV. Core Advantages

1. Simple and Reliable Structure
   • No heating elements, minimizing potential failure points.
   • Symmetrical dual-tower design for easy maintenance.
2. Low Investment Cost
   • No heating system required, reducing manufacturing costs.
   • Foundation-free installation saves installation expenses.
3. Easy Operation and Maintenance
   • Fully automatic microcomputer control, no dedicated personnel required.
   • Modular design enables simple and quick maintenance.
4. Rapid Start-Stop Response
   • 10-minute short cycle allows quick achievement of working status.
   • Suitable for intermittent production conditions.

V. Technical Strength

Core Technologies:

• Activated alumina and molecular sieve composite bed technology.
• Rapid switching valve control technology.
• Uniform air distribution design technology.

Manufacturing Processes:

• Precision valve manufacturing ensures reliable switching in 10-minute cycles.
• Anti-pulverization adsorbent filling process.
• Compact structure optimization design.

VI. Product Series Introduction

Standard Series:

• WH-10 Series: 1.2-10 Nm³/min, Weight: 110-400 kg
• WH-30 Series: 12-30 Nm³/min, Weight: 450-1200 kg
• WH-50 Series: 35-50 Nm³/min, Weight: 1300-1800 kg
• WH-65 Series: 55-65 Nm³/min, Weight: 2000-2500 kg

Dew Point Grades:

• Standard Type: -20℃ Pressure Dew Point (Activated Alumina)
• Low Dew Point Type: -40℃ Pressure Dew Point (Activated Alumina + 5A Molecular Sieve Composite)

VII. Application Scenarios

General Industrial Fields:

• Pneumatic tools, packaging machinery, filling equipment, and component cleaning/drying in small manufacturing workshops.

Specific Industry Applications:

• Laboratory instruments and equipment, small spraying equipment, pneumatic conveying systems.

Special Working Conditions:

• Occasions without external power supply (with supporting power generation equipment), explosion-proof environments (no electrical heating elements), supporting mobile air compressor units.

VIII. Detailed Technical Specifications

Yipu Heatless Regenerative Adsorption Dryer Technical Parameter Sheet

Parameter Category	Technical Indicators	Remarks
Basic Performance Parameters
Air Processing Capacity	1.2-65 Nm³/min	Standard condition flow rate
Working Pressure	0.6-1.0 MPa	Operates normally within this pressure range
Pressure Dew Point	-20℃, -40℃	Two dew point grades available
Regeneration Air Consumption	20%~25%	Proportion of finished air consumption
Pressure Loss	≤3% of inlet pressure	System resistance loss
Operating Conditions
Inlet Air Temperature	≤45°C	Maximum allowable inlet temperature
Inlet Oil Content	≤0.01 PPM	Pre-installed precision filter required
Technical Configuration
Desiccant	Activated Alumina (Low Dew Point Model: Activated Alumina + 5A Molecular Sieve Composite)	Two adsorbent configurations available
Regeneration Method	Heatless Regeneration	Based on Pressure Swing Adsorption (PSA) principle
Working Method	Dual-Tower Alternating Continuous Operation	Ensures continuous air supply
Working Cycle	T=10 minutes	Rapid cycle regeneration
Control Mode	Microcomputer Automatic Control	Intelligent operation
Installation Method	Indoor flat ground, foundation-free installation	Simple and quick installation
Utility Requirements
Power Supply	220V/50HZ	Standard civil power supply
Structural Parameters
Equipment Weight	110-2500 kg	Determined by processing capacity
Overall Dimensions (L×W×H)	(800-2150)×(400-850)×(1500-3000) mm	Compact design