제품영상
흡착식 에어드라이어 / Desiccant Dryer For Air Compressor
Technical Specifications of Lingyu Desiccant Air Dryer
| Suitable medium | 압축공기 / 비부식성 공기 |
| 작동 원리 | 공익 광고 + TSA |
| Adsorption air dryer type | heatless, heated, blower purge, hoc |
| Structure type | twin tower and modular |
| Working period | ≈10 min (adjustable) (for heatless desiccant compressed air dryer) |
| Average consumption of regeneration air | Std.13% | 최소. 8% Max.14% (for heatless air dryer) |
| Inlet air capacity | Std.50 CFM to Max 10500 CFM |
| 입구 공기압 | 표준 7바 | 최소 6 바 맥스:100 술집 |
| 입구 공기 온도 | 10~30℃ | 최소 2℃ 최대 40℃ |
| 주변 온도 | Min.2℃ Max.45℃ |
| 압력 손실 / drop under full load | 0.2 술집 |
| Inlet air dew point requirement | ≤15℃ (for heatless and heated regeneration air dryer) |
| 출구 이슬점 | (-20℃, -40℃, -70℃) |
| Inlet air oil requirement | Oil-free compressed air or ≤0.1ppm (mg/m3) |
| 전압 | 220V, 380V, 400V, 415V, 440V, 50~60Hz, 1-위상 또는 3상 |
| 사용 가능한 색상 | 회색, 파란색과 노란색 |
Kind note: we can customize the medium and high pressure desiccant air dryers. Such as 25 술집, 40 술집, 50 술집, 60술집, 70술집, 80술집, 90 술집, 100 술집.
Why Choose Us As Your Desiccant Air Dryer Manufacturer
우리는 중국에서 가장 전문적인 건조제 공기 건조기 제조업체 중 하나입니다.. 게다가, 당사의 건조기는 세계적으로 유명한 압축기 브랜드와 함께 고객에게 서비스를 제공하는 경우가 많습니다.. 당사의 흡수식 건조기에는 다음과 같은 장점이 있습니다..
Strong Customization Capability
There are all kinds of regenerative air dryers available. So we can meet the various needs of customers. 게다가, our factory is good at customizing large-capacity dryers. It can be up to 300 m³/분.
Adopt Long-process Design
It ensures a long contact time between adsorbent and compressed air. They have high-efficiency mufflers. So the noise is as low as 60 decibels.
Airflow Distribution Structure
The device is at the bottom of the drying tower. Compressed air enters the adsorption tower. It slows down and spread first. To ensure a uniform flow through the desiccant beads.
Using High-quality Customized Adsorbents
The particle size is 3~5mm. And water resistance is good. They will not crack or swell when in water. The adsorbent has a long service life.
Stable Outlet Dew Point
Our air desiccant dryers are filled with adequate beads. 20~24kg of adsorbent per m3/min air capacity. So it increases contact time with desiccant.
다중 보호 장치 포함
고전압 및 저전압 보호 기능이 있습니다.. 전자는 냉매 압력이 너무 높아지는 것을 방지합니다.. 후자는 냉매 누출을 방지합니다.. 따라서 압축기를 보호할 수 있습니다.
How to Choose A Desiccant Dryer For Air Compressor?
1. Basic Parameters of Adsorption Dryer
① Air Capacity
The air capacity is generally the same as that of the refrigerated dryer. We are a professional desiccant air dryer manufacturer. The maximum processing capacity can be 300m³/min. So it can meet most of the needs of customers.
② Inlet Air Temperature
As can be seen from the chart below: under the same pressure, the water content increases by 30% for every 5°C increase in the inlet temperature. The moisture load entering the dryer will increase by 30%. 게다가, the adsorption capacity of the adsorbent decreases with temperature up.
그러므로, we need to reduce the inlet temperature as much as possible. 동시에, it increases liquid water filtration efficiency. 그렇지 않으면, it is necessary to add the air capacity of the desiccant dryer. 그건, choose a larger model.
③ Working Pressure
According to the graph above, water content and pressure are inversely proportional. So the lower the working pressure, the higher the dryer load.
게다가, a drop in pressure results in a reduction in the amount of regeneration air. This will reduce the efficiency of the desiccant compressed air dryer.
And we can also produce high-pressure adsorption air dryers. The max pressure can be up to 100 술집.
④ Dew Point
The water content of compressed air is divided into 6 grades. 그 중, the pressure dew points of grades 1 에게 3 are all below -20 °C. 그러므로, it must use an adsorption dryer to achieve this.
Its typical application fields are as follows. 예를 들어, photographic film, microelectronic chips (grade 1, -70°C); precision spraying (grade 2, -40°C); powder product conveying (grade 3, -20°C), 등.
In principle, install a refrigerated dryer in front to reach a -70°C dew point. 그렇지 않으면, it is difficult to guarantee the water removal effect for the absorption dryer.
⑤ Oil Content of Compressed Air
Absorbent avoids oil. 그러므로, desiccant compressed air dryer has a strict limit on the oil content. 일반적으로, it needs oil-free compressed air or ≤0.1ppm (mg/m3). 그렇지 않으면, the desiccant beads' life will be shortened. And the water removal effect will also be affected.
In particular, the HOC dryer must require oil-free air. So we usually use a HOC dryer after centrifugal or oil-free screw air compressor.
2. Regeneration Method Or Energy Saving Requirements
Often, energy savings and dew points cannot be compromised. The heatless adsorption dryer has about 13% air loss. And heated desiccant air dryer has about 6% air loss. But the blower purge is heated, and the HOC dryer can realize zero air loss
그러므로, the zero air loss desiccant dryer has high energy-saving efficiency. Although expensive, it can save a lot of electricity or water bills every year. Almost a year of savings can be enough to buy a new machine.
물론, there are prerequisites for choosing a HOC dryer. The inlet temperature must be above 110°C. 그렇지 않으면, the energy saving will be greatly reduced. 현재, the zero air loss HOC dryer is inferior to the micro air loss HOC dryer.
3. Other Factors
① Floor Area And Shipping
일반적으로, the size of the adsorption air dryer is relatively large. Especially the large capacity air desiccant dryer. 그러므로, the area and transportation costs are relatively big. You can choose a modular adsorption dryer if the floor space is limited.
게다가, we also have a combination air dryer. 그건, the refrigerated dryer and absorption dryer are integrated. It can save floor space. 게다가, it is easy to install. And drying effect is also perfect.
② Material
Some industries have requirements for the material of adsorption dryers. They have to be 304 stainless steel. 예를 들어, pharmaceutical, 음식, lithium battery industries, 등.
Activated alumina and molecular sieves are common desiccant beads. Both have strong adsorption capacity for water vapor.
Activated alumina has many excellent properties. 그러므로, it is the first choice for adsorption dryers on most occasions. Especially when the dew point requirement is not high.
하지만, the adsorption capacity in a low moisture environment is far inferior to molecular sieves. So to obtain a lower dew point, it requires molecular sieves. But its mechanical strength and water drop resistance are not ideal. 따라서, we usually use it together with alumina.
예를 들어, these two adsorbents are used together for -40°C and -70°C dryers. Just the specific proportions are different.
FAQ
How to Change Desiccant Deads in Air Dryers?
- Each drying tower has a filling port and a discharge port. So first take off the cover plate on them.
- We can insert a small stick into the discharge port. 그러므로, it will help the desiccant flow out of the tower.
- There are coarse filter meshes on the tower's inlet and exhaust pipe joints. They are removable. So we can remove and clean them.
- After cleaning the coarse filter, re-install it. Then close the drain plug again.
- Remove all filler plugs. Then inject the appropriate grade and specification of desiccant beads. The adsorbent height level should meet the regulations.
- Once the two towers are filled, re-plug the filling port.
- Leak test should be carried out on all disturbed joints. Then re-commission the desiccant compressed air dryer.
Which Desiccant is Used in Compressed Air Dryers?
There are mainly two kinds of desiccant beads in adsorption dryers. That is activated alumina and molecular sieves. 일반적으로, they are 3~5mm. 게다가, different dew point requirements and different adsorbents.
예를 들어, the -20℃ dew point dryer only needs activated alumina. But the absorption dryer above -40 ℃ is different. It must use alumina and molecular sieve together. In this way, it can achieve the effect of deep water removal.
How Long Does Air Dryer Desiccant Last?
The replacement cycle of the adsorbent is generally every two years. 물론, we have to do good maintenance work. We must install the oil removal filter because the desiccant beads are susceptible to oil.
게다가, we have to clean and replace the filter element regularly. 그렇지 않으면, oil vapors will enter the desiccant compressed air dryer. Ultimately, it will reduce the adsorbent lifetime.
Membrane Air Dryer vs. Desiccant
Their working principles are different. Twin tower desiccant dryer mainly uses the PSA principle. And the adsorbent has a strong water absorption performance. So it can achieve low dew points.
Compressed air enters the membrane dryer. Firstly pass through a bundle of fiber tubes. Water vapor can permeate through these membranes. Then diffuse to the outside of the film layer.
And small compressed air is released through the needle valve. Expansion and decompression. The relative humidity of the backflush air drops sharply. The backflush airflow and the intake air move in the opposite direction.
There is a difference in humidity between compressed air and blowback air. 그러므로, the moisture diffuses to the fiber tube. These water vapors are discharged with backflush air. 마지막으로, we get dry compressed air.
What is The Effect of Ambient Temperature on Adsorption Dryer?
1) Influence of high ambient temperature:
- 첫째로, it will cause the air compressor discharge temperature to be too high. Humidity can also be too high. So the desiccant compressed air dryer is overloaded.
- The adsorption dryer has many IC circuits. When the ambient temperature is too high, it can easily cause inaccurate control. 심한 경우에는, circuit components will be damaged.
2) Influence of low ambient temperature:
- The regenerative exhaust air carries a lot of moisture. So it will condense or even freeze during the discharge process. The regeneration exhaust passage will be blocked. 결국, the working procedure of the adsorption dryer will be confused.
In particular, the muffler is most prone to ice blockage. 그러므로, pay attention to maintenance. - 게다가, if the ambient temperature is too low, the desorption of a heatless dryer will be difficult. Adsorption heat loss is too large.
그러므로, we must consider the ambient temperature when selecting a desiccant compressed air dryer.
Is It Necessary to Have A Refrigerated Dryer Before The Regenerative Air Dryer?
Installing a refrigerated dryer in front of the desiccant dryer is unnecessary. The refrigerant dryer is unsuitable when the ambient temperature is lower than 2°C. We can only rely on the role of the adsorption air dryer. 게다가, if the rear cooler of the air compressor has a good effect, sometimes it also doesn’t need to install a refrigeration dryer. 하지만, in most cases, there requires a refrigerated air dryer. 게다가, it can bring many benefits.
첫째로, the refrigerant dryer can protect the adsorbent.
The desiccant air dryer is filled with alumina and molecular sieves. These desiccant beads mainly adsorb gaseous water. If there is no refrigeration dryer, there will be a lot of condensed water. Absorption of liquid water can cause pulverization of the adsorbent. 게다가, the refrigerant dryer can also remove part of the oil. It will reduce the pollution of oil impurities in the desiccant beads. 그러므로, it can extend the adsorbent replacement time.
둘째, the refrigerated dryer can improve the dew point of the adsorption air dryer.
Freeze dryers are generally used for pre-cooling. The outlet air temperature of the air compressor is extremely high. So it requires cooling treatment. 그렇지 않으면, it will be difficult for the desiccant dryer to reach the pressure dew point required by production. 게다가, it can reduce the load on the regenerative air dryer. 그러므로, it will use less consumption of regeneration air. The economic consumption of regeneration air is higher than the electricity consumption of the refrigerant dryer.
As we all know, pharmaceutical, 음식, spraying, and other industries generally have high requirements for production air. If only install the refrigerant dryer, it may not meet the requirements. Refrigerated dryers help cool the compressed air. Removes most of the liquid water. So it can maximize the drying effect of the adsorption desiccant air dryer. Even it can achieve a dew point of -70°C.
