Large Heatless Regenerative Desiccant Compressed Air Dryer

Name: China Large Heatless Regenerative Desiccant Compressed Air Dryer Manufacturers Suppliers Factory - Shanli Purify Equipment
Brand: SHANLI
SKU: 194560539

● 10 minutes standard cycle;
● Working pressure dew point -20℃~-40℃；
● High-quality switching valve, stable and reliable, can ensure the integrity of the work process and prolong the working life of components;

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Product Introduction

Heatless Desiccant Compressed Air Dryer (Heatless regenerative desiccant dryer) is a compressed air purification device that operates on the principle of selective adsorption. It uses adsorbent materials to preferentially capture moisture from compressed air, achieving effective drying. When the adsorbent becomes saturated over time, the system employs a dual-tower design to ensure continuous operation: While one tower actively dries the incoming air, the other undergoes a regeneration process. This regeneration phase utilizes a portion of the dried output air, depressurized to near atmospheric pressure, to purge moisture from the saturated adsorbent. The towers automatically switch roles at set intervals, enabling uninterrupted delivery of dry compressed air while maintaining the adsorbent's efficiency.

Applicable working conditions

Max air inlet temperature	45℃	Oil content of air inlet	≤0.1PPm
Working pressure range	0.5-1.0Mpa	Control mode	Micro computer/PLC controller
Pressure dew point	-20℃~-40℃	Power	AC220V/50HZ,
Pressure loss	≤ 3% of design working pressure	Working cycle	T=10(min)

Product characteristics

● 10 minutes standard cycle;

● Working pressure dew point -20℃~-40℃;

● High-quality switching valve, stable and reliable, can ensure the integrity of the work process and prolong the working life of components;

● Choosing Special adsorbents with highly hygroscopic, uniform shape and size, high strength, low output dew point, less dust generated, and long service life;

● The amount of regeneration air can be adjusted according to the operating load requirements of the equipment to achieve energy saving effect

● Reasonable heater design, good dehumidification and regeneration effect, low air consumption, high heating efficiency, and minimized energy consumption;

● Programmable microcomputer controller, that adsorption and regeneration time can be adjusted to achieve your satisfactory dew point value;

Table 1: Working pressure correction factor CFP

Inlet Air pressure	Mpa	0.5	0.6	0.7	0.8	0.9	1.0
Inlet Air pressure	CFP	0.75	0.88	1	1.13	1.25	1.38

Table 2: Air inlet temperature correction factor CFT

Inlet Air temperature	℃	20	25	30	35	38	45
Inlet Air temperature	CFT	1.2	1.1	1	1	1	0.75

Selection process

● The pressure loss of the pre-filter in the system must be considered when choosing the correction factor CFP of inlet pressure of dryer.

● Select the air inlet temperature correction factor CFT.

● Selection calculation formula: selection treatment capacity = actual treatment capacity÷(CFPXCFT)

What equipment does the compressed air purification equipment include?

The dryer is mainly used to dry the moisture of compressed air. Its dryness is expressed by dew point. The lower the dew point, the better the drying effect. Generally, dryer types can be divided into freezing dryer and adsorption dryer. The pressure dew point of the freezing dryer is above 2 ℃, and the pressure dew point of the adsorption dryer is between - 20 ℃ and - 70 ℃. Customers can choose different types of dryers according to their requirements for the quality of compressed air. It is the most important equipment in the whole compressed air purification equipment.

The filter is mainly used to remove water, dust, oil and impurities. The water here refers to liquid water. The filter can only remove liquid water, not vapor water. The filter efficiency is determined by precision. The general accuracy is 3u, 1u, 0.1u, 0.01u. It is recommended to arrange the filter precision from large to small during installation.

The aftercooler is used to cool the compressed air and condense the purified water. This effect can be achieved by using a cold dryer or a cold dry filter.

The oil-water separator is used to separate and discharge cooling water drops, oil drops, impurities, etc; The coalescence principle separates the oil and water, the oil floats to the upper layer and is collected by the oil collector, and the water is discharged.

The air storage tank is used to store air and buffer, stabilize the pressure and remove most of the liquid water.

Compressed air purification equipment needs to be selected according to the working conditions, and some equipment may not even be installed. These aspects should actively refer to the opinions of the manufacturer, and should not be selected blindly.

Large heatless regenerative desiccant compressed air dryer PB series

Model Item	Air capacity (Nm³/min)	Desiccant Weight (kg)	Air Connection pipe diameter	N.W (Kg)	L (mm)	W (mm)	H (mm)
SDXW-1PB	1.2	40	G1"	165	810	500	1275
SDXW-2PB	2.5	45	G1"	235	810	500	1325
SDXW-3PB	3.6	60	G1"	355	810	500	1675
SDXW-4.5PB	5.0	100	G1-1/2"	385	1040	600	1793
SDXW-6PB	6.8	120	G1-1/2"	480	1040	600	2143
SDXW-8PB	8.5	180	G2"	600	1200	600	2246
SDXW-10PB	10.9	200	G2"	755	1200	600	2346
SDXW-12PB	12.8	200	G2"	755	1200	600	2346
SDXW-15PB	16	310	DN65	775	1310	769	2329
SDXW-20PB	22	492	DN65	1030	1410	769	2390
SDXW-25PB	26.8	578	DN80	1200	1510	818	2774
SDXW-30PB	32	600	DN80	1220	1565	815	2501
SDXW-40PB	43.5	856	DN100	1640	1854	963	2687
SDXW-50PB	53	1002	DN100	1650	1900	978	2707
SDXW-60PB	67	1334	DN125	2390	2166	1100	2869
SDXW-80PB	90	1608	DN125	2900	2864	1059	2857
SDXW-100PB	110	2000	DN150	3800	3460	1230	3048
SDXW-120PB	130	2435	DN150	4330	3560	1305	3094
SDXW-150PB	160	2926	DN200	5270	3960	1450	3332
SDXW-200PB	210	4070	DN200	6920	4360	1605	3471
SDXW-250PB	260	4710	DN250	Detailed parameters and manufacturer consultation
SDXW-300PB	310	6160	DN250	Detailed parameters and manufacturer consultation

Design working conditions: working pressure: 7 bar, air inlet temperature: 38℃, pressure dew point: -20°C

How Shanli's Services Work

Product R&D

A total of 29 people are in the R&D and technical teams, including 6 in the R&D room and 23 in the technical room. Including: 3 senior engineers, 15 engineers, and 11 assistant engineers. The R&D team is mainly responsible for optimizing and improving the process and performance of mid range products, developing large or high standard products, and developing high-end products. The technical team is mainly responsible for providing support and services to customers in terms of technical aspects before, during, and after sales.
Productive ability

1.The market share of Shanli company's products is about 8%.
2.The registered capital is close to 30 million yuan, and the company has over 280 employees.
3.Production and supply capacity: annual supply of over 10000 dryers and filters, ensuring timely supply demand.
Quality inspection

We will equip professional quality inspectors with precision testing equipment to inspect the relevant quality of product components when they enter the factory. During the manufacturing process, corresponding inspections will be conducted before leaving the factory. Only after passing the inspection can we ship the products. The relevant testing includes: airtightness inspection, paint film inspection, no-load debugging inspection, inspection of product appearance before leaving the factory, random product information, quantity and model of accessories, and taking photos for record keeping. Every inspection will provide a quality inspection report to safeguard every order.
After service

With a strong and comprehensive after-sales service network, we have 9 customer service centers and more than 20 liaison offices in major regions of the country. Each customer service center has professional service engineers, totaling more than 50 people, who can quickly and timely solve after-sales service problems such as equipment startup debugging and troubleshooting.
Customization

Salespeople and research institutes will develop professional order plans for customers based on their on-site working conditions, technical requirements, etc. Provide business and technical support to customers, accurately and timely resolving all pre-sales business and technical requirements. And our company has carried out multi-faceted cooperation with leading enterprises in multiple industries, and has obtained many influential key projects.