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The working principle of the high-pressure fan, also known as the vortex air pump and the vortex fan, is: when the impeller rotates, due to the action of centrifugal force, the wind vane promotes the gas to move forward and outward, thus forming a series of spiral movements. The air between the impeller blades rotates in a spiral and squeezes the gas from outside the pump body into the side grooves (drawn in from the suction port), and when it enters the side channel, the gas is compressed, and then returns to the impeller blades to accelerate again.
As the air passes through the impeller and side grooves along a spiral track, each impeller blade increases the degree of compression and acceleration, and as the rotation progresses, the kinetic energy of the gas increases, causing the pressure of the gas to pass along the side channel to increase further. When the air reaches the connection point between the side trough and the discharge flange (the side channel narrows at the outlet), the gas is extruded out of the vane and discharged from the pump body through the outlet muffler. The schematic diagram is as follows:
The roots fan is a positive displacement fan, the air volume conveyed is proportional to the number of revolutions, the three-blade impeller is sucked and exhausted three times by two impellers for each rotation, compared with the two-blade type, the gas pulsation is less, the load change is small, the mechanical strength is high, the noise is low, and the vibration is also small. Two three-bladed impellers are arranged on the shafts of two horizontal rows, and a small gap is always maintained between the wheel and the inner hole surface of the oval chassis and each impeller, and because the impellers rotate at a uniform speed in the opposite direction of each other, a certain amount of gas surrounded by the box and the impeller is transported from the side of inhalation to the side of discharge. Each impeller is always kept in the correct phase by the synchronous gear, and there will be no contact with each other, so it can be high-speed, does not require internal lubrication, and has a simple structure, stable operation, stable performance, and is suitable for a variety of purposes, and has been used in a wide range of fields.
The schematic diagram is as follows:
There is a big difference between the vortex fan and the roots blower, and the structural form, working principle and working characteristics are different.
To put it simply, the vortex fan relies on centrifugal force to send the gas out, and the roots blower is to forcibly transport the gas, that is, the compressed gas is transported. Taking sewage treatment as an example, the vortex fan is suitable for small pools to supply oxygen, which is economical and cost-effective; Roots blower is used for large-scale sewage treatment, and the air pressure is relatively large. When choosing, according to the pressure and gas volume you use, the roots blower with large wind pressure and large air volume is more suitable.
However, if the wind pressure is within 20kpa and the gas volume is large, you can choose a ring fan, which is more reasonable. In terms of equipment selection, it is recommended to use Roots blower or Jingong, and whirlpool fan can choose Geling or Senzi, which are more cost-effective and durable.
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The high-pressure blower is a fan classified by pressure, and the fan is divided into low-pressure fan, medium-pressure fan, and high-pressure fan according to pressure, and the fan with a wind pressure of 30kpa 200kpa or compression ratio e= belongs to the category of high-pressure fan. High-pressure fans, also called high-pressure blowers, are different from general centrifugal blowers. However, high-pressure fans are not all vortex air pumps, but also include roots blowers, rotary blowers, multistage centrifugal blowers, and suspension blowers.
Due to its special structure, the vortex air pump has incomparable advantages of other fans, such as no oil and no pollution, easy maintenance, beautiful appearance, and dual functions of blowing and suction. At present, there are many types of high-pressure fans on the market, but users must figure out the use of working conditions, which kind of fan is suitable for them, such as pressure, flow, dimensions, use, etc., speaking of choosing a fan, it is recommended to consider Sentz, Senz fan originated from the German SEVNZ company, and has now set up a factory in China, the main products are vortex air pumps, magnetic levitation blowers and other high-end fans, due to the localization of production, ** significantly reduced compared with before, but still retains a stricter quality control procedure, Therefore, the Senz fan has a high cost performance. I digress and can't help but recommend.
In short, there is a difference between a high-pressure fan and a vortex air pump, and a vortex air pump is just a type of high-pressure blower.
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Blowers and air pumps are not the same purpose. First of all, the air pump, also known as the air compressor, can store compressed air, the pressure is adjustable, and the use area is wide; Although it can store compressed air with a certain pressure value, it can not continuously output air with a certain pressure value, can not output a large flow of air, and the equipment itself does not have the ability to operate for a long time.
There are many types of blowers, but in terms of characteristics, they can output air with a constant pressure value, have the ability to operate for a long time, and the pressure is adjustable, and some are not suitable for frequent start and stop processes. For example, the centrifugal blower is similar to the household one, and the blower is used for blower, and the structure of different types of blowers is very different, and the management is not the same.
Under the design conditions of high-pressure blower, the fan with an air pressure of 30kpa 200kpa or a compression ratio of e= belongs to the category of high-pressure blower. High-pressure blowers, also known as high-pressure fans, are different from general centrifugal high-pressure blowers.
The high-pressure blower is small and easy to carry; With the exception of the impeller, the high-pressure blower has no moving parts, and the impeller is directly connected to the motor and is not driven by gears or transmission belts, so it is highly reliable and virtually maintenance-free.
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It's all the same thing, such as the Wind Parker vortex air pump, the Wind Parker high-pressure blower are all the same product.
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High-pressure vortex fans are also known as high-pressure fans, vortex air pumps, and vortex air pumps.
According to the direction of gas flow, the vortex high-pressure fan can be divided into centrifugal type, axial flow type, oblique flow type and cross-flow type.
The working principle of high-pressure vortex fan: there are dozens of blades on the impeller, it is similar to a huge gas turbine impeller, when the impeller of the vortex air pump rotates, the air in the middle of the impeller blade is subjected to centrifugal force, moving towards the edge of the impeller, where the air enters the annular cavity of the pump body, and then returns to the impeller, and then circulates again from the starting point of the blade in the same way, because the air is evenly accelerated, the circulating air flow generated when the impeller rotates makes the air burst out in the form of a spiral. So the air leaves the pump body at an extremely high energy level and is ready for use. (It generates 12-17 times the pressure of a centrifugal fan with the same speed diameter).
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