The Purpose And Selection Precautions of High Pressure Ring Blower

What is a High Pressure Ring Blower?

Under the design conditions, a ring blower with a wind pressure of 30 kPa to 200 kPa or a compression ratio e = 1.3 to 3 falls within the category of high pressure ring blowers. Currently, in the industry, the vacuum pump with an air ring is generally classified as a high pressure ring blower. high pressure ring blowers, also known as high pressure fans or vortex ring blowers, are different from ordinary centrifugal high pressure ring blowers.

Working Principle of High Pressure Ring Blower

When the impeller rotates, due to the centrifugal force, the wind indicator causes the gas to move forward and outward, thus forming a series of spiral movements. The air between the impeller blades accelerates in a spiral manner and pushes the gas outside the pump body (in through the suction port) into the side groove. After entering the side channel, the gas is compressed and then returns to the impeller blades to accelerate again. When the gas travels along a spiral track through the impeller and side groove, each impeller blade increases the compression and acceleration degree. As the rotation progresses, the kinetic energy of the gas increases, causing the pressure of the gas passing through the side channel to further increase. When the gas reaches the connection point between the side groove and the discharge flange (where the side channel narrows at the outlet), it is squeezed out of the blades and discharged through the outlet muffler.

Characteristics of High Pressure Ring Blower

Generally, high pressure ring blowers have the following characteristics:

1. Dual function of suction and blowing, one machine for two uses, can be used for suction or blowing;
2. Low oil or no oil operation, the output air is clean;
3. Compared with centrifugal ring blowers and medium-pressure ring blowers, its pressure is much higher, often being more than ten times that of centrifugal ring blowers;
4. If the pump body is integrally cast and uses shock-proof installation feet, then the requirements for the installation foundation are very low, and it can even operate normally without fixed feet, which is very convenient and also very cost-effective in terms of installation costs and installation cycle;
5. Compared with similar ring blowers, its operating noise is lower, as with Shenghong high pressure ring blower's launch of ultra-quiet high pressure ring blower:
6. Maintenance-free use; its wear parts are only two bearings, and basically no maintenance is required within the warranty period;
7. The mechanical wear of the high pressure ring bloweris very small, because except for the bearings, there are no other mechanical contact parts, so the service life is of course very long, as long as it is under normal usage conditions, 3 to 5 years is completely without problem;
8. Installation is simple, use is convenient!

Selection Considerations for High Pressure Ring Blowers

Due to the wide application of high pressure ring blowers, their selection is relatively complex. Generally, it needs to be carried out in the following two steps:

1. Need to determine which function of the high pressure ring bloweris used at the site, is suction or blowing, and find the corresponding pressure-flow curve of the high pressure ring blower; if the curve is mistaken, sometimes it will cause the selected product to be unusable;
2. Based on the calculated pressure and flow, find the working curve on the curve graph that simultaneously meets the pressure and flow corresponding to the working point; then select the model of the high pressure ring bloweraccording to the working curve;

For different working sites, the demand for pressure and flow is different, so to obtain relatively accurate data, relevant calculations are needed. This needs to be done by professional designers or consulting with professional companies.

 Installation Considerations for High Pressure Ring Blowers

1. Must use flat washers and spring washers to tighten the screws;
2. It is best to use rubber buffer gel to bear the weight of the high pressure ring blower, especially for large-power high pressure ring blowers, it is indispensable;
3. For some occasions with noise requirements, a muffler can be installed to reduce noise (generally, about 5 dB), the muffler is installed at the end of the inlet or outlet duct;
4. For some occasions with very high noise requirements, according to the conditions of the machine itself, adding a layer of sound insulation cotton can meet the noise requirements of the site, specific consultation can be made with the manufacturer of high pressure ring blowers or professional noise control companies; 5. When using the muffling cotton for muffling, pay attention to the distance between the high pressure ring blower and the box, the ventilation and heat dissipation of the high pressure ring blower, and the use of rubber buffer gel to bear the weight of the high pressure ring blower. Specific matters need to be consulted with the manufacturer of the high pressure ring blower, such as SOP and Siemens;
5. For the connection of the inlet and outlet pipes of the high pressure ring blower, use flexible hoses to isolate vibrations.

Safety Precautions for High Pressure Ring Blowers

Regardless of the brand of the high pressure ring blower, two aspects of protection are required: pressure and dust.

For pressure, the commonly used device is the pressure relief valve. It is a relief valve that automatically opens when the pressure used by the high pressure ring blower exceeds the set pressure of the pressure relief valve, thereby releasing the excess pressure and protecting the high pressure ring blower.

For dust, the commonly used device is the filter. Depending on different usage sites, different filter cores with different filtration accuracies are often used. Different filter cores have different maintenance methods and service life. During ordering, it is necessary to ask clearly.

In some special occasions, special protection is also required: for example, when used in a sealed environment, pay attention to ventilation and heat dissipation; when the environmental temperature (the intake temperature is relatively high), pay more attention to ventilation and heat dissipation, or choose a high pressure ring blower with a higher allowable intake temperature (such as a ring-shaped ring blower, which allows the intake temperature to reach 130°);

For some brands of high pressure ring blowers, there may also be their own usage suggestions. Before purchasing, it is best to have a detailed understanding.

Common Faults and Troubleshooting of High Pressure Ring Blowers

1. (I) The ring blowerdoes not rotate
2. No power supply - Connect the power supply
3. Motor does not work - Check the motor wiring or replace the motor
4. ring blowerhead damaged - Repair the ring bloweror replace it
5. Foreign object stuck in the ring blower- Remove the foreign object

Increased noise.

1. Dry lubrication of bearings - Add bearing grease
2. Bearing damage - Replace the bearing
3. Impeller wear - Replace the impeller or pump head
4. Loose or fallen fasteners - Tighten the fasteners
5. Foreign object in the ring blowerinlet - Remove the foreign object or replace the pump head

Increased vibration

1. Bearing damage - Replace the bearing
2. Imbalance of the impeller - Remove the foreign object in the impeller or adjust the dynamic balance
3. Deformation of the main shaft - Replace the main shaft or pump head
4. The working state enters the turbulent zone - Adjust the working state to avoid the turbulent zone
5. Filter screen in the inlet and outlet ports is clogged - Clean the filter screen

Temperature increase

1. Inlet air temperature is too high - Reduce the inlet air temperature
2. Dry lubrication of bearings - Add bearing grease
3. Decrease in ring blowerefficiency - Clear the dust in the air passage or replace the pump head
4. Change in working state - Adjust the working state
5. Increase in environmental temperature - Increase ventilation and heat dissipation in the environment

Decrease in pressure

1. ring blowerhead speed decreases - Low power supply voltage or motor failure
2. Increase in pipe network resistance - Reduce pipe network resistance
3. Change in working state - Adjust the working state
4. Motor rotation direction reversed - Reconnect the motor

Decrease in flow rate

1. Inlet and outlet filter screens are clogged - Clean the filter screens
2. ring blowerhead speed decreases - Low power supply voltage or motor failure
3. Increase in pipe network resistance - Reduce pipe network resistance
4. Increase in working state - Adjust the working state
5. Motor rotation in reverse - Reconnect the motor wiring  high pressure ring blowerapplication industries for high pressure ring blowers

High pressure ring blowers are widely used in paper cutting machines, combustion oxygen reduction machines, cigarette filter tip forming machines, electroplating tank liquid stirring, atomization drying machines, water treatment aeration, aquaculture, screen printing machines, photographic plate making machines, injection molding machines, automatic feeding and drying machines, liquid filling machines, powder filling machines, welding equipment, film machinery, paper transportation, dry cleaning of clothes, cleaning purposes, air dust removal, drying bottles, gas transmission, feeding, collection, environmental protection water treatment, central dust collection protection, aquaculture, screen printing, electroplating, dust removal, food, packaging, filling, glass products, air flow transportation, etc.