HZ Rotary Blower
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  • HZ Rotary Blower

HZ Rotary Blower

Category:

Rotary blower

Small in size, high in air volume, low in noise, and energy-efficient. Rotary blowers operate on the principle of compressing air through rotation. Despite their compact size, they boast a large air volume, energy efficiency, and low noise levels—features that are unmatched by other types of blowers.
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Description

Rotary Fan Structure and Working Principle

Rotary fan pressure range: 0–0.5 kgf/cm² 2

The rotary fan’s structure mainly consists of six components: the rotary fan itself, an electric motor, an air filter, an air chamber, a base (including an oil reservoir), and an oil drip nozzle.

The fan operates by means of an eccentrically mounted rotor within the cylinder, causing the volume between the blades in the rotor slots to vary, thereby drawing in, compressing, and discharging air.

During operation, the pressure difference generated by the fan automatically delivers lubricating oil to the oil-drip nozzles, which then drip it into the cylinder, lubricating the piston rings and cylinder block, thereby reducing friction and noise.

At the same time, it can reduce gas backflow within the cylinder, providing a sealing effect and improving the fan’s efficiency.

Schematic diagram of the working stroke of a rotary fan

Applications of rotary fans

Small-scale water treatment aeration

Stirring and aeration of wastewater from hospitals and laboratories

Vacuum Paper Feeding in the Printing Industry

Stirring and aeration of electroplating tanks and industrial wastewater

Air supply for plastic welding and blow molding

Burner spray, glass industry, etc.

Characteristics of rotary fans

Small in size, high in air volume, low in noise, and energy-efficient. Rotary blowers operate on the principle of compressing air through rotation. Despite their compact size, they boast a large air volume, energy efficiency, and exceptionally low noise levels—qualities that are unmatched by other types of blowers.

It operates smoothly and is easy to install. As long as it’s properly positioned, the rotary blower generates very little vibration during operation and doesn’t require any additional anti-vibration devices.

It resists changes in load, and the air volume remains stable. For example, when the pressure in a wastewater treatment aeration tank fluctuates—indicating a change in load—the air volume varies only slightly in response to these pressure changes.

The air output is smooth. The entire unit is equipped with an air chamber that effectively prevents air pulsations, ensuring a steady airflow.

Outstanding performance. All fans are made of high-quality materials, ensuring robustness and durability, with a meticulously designed structure that minimizes failures over long-term use.

Simple maintenance. The fan operates at a low speed, resulting in minimal component wear, a long service life, and easy maintenance.

Fan performance parameters

Model Ventilation outlet diameter
(mm) 		Motor power (kW) Frequency (Hz) Fan speed
(rpm) 		Air volume (m) 3 /min) V-belt pulley Weight

0.1

kgf/cm2

0.2

kgf/cm2

0.3

kgf/cm2

0.4

kgf/cm2

0.5

kgf/cm2

 Blower Motor Net weight Gross weight
HD-251S 34”(20) 0.55  50  450  0.31  0.3  0.29  0.28  0.27  8 inches 21/2 inches 50kg 58kg
HD-30S 1”(25) 0.55  50  430  0.35  0.34  0.33  0.32  0.31  10 inches   52kg 60kg
HD-301S 1”(25) 0.75  50  520  042  0.41  0.4  0.39  0.38  10 inches 31/2 inches 58kg 66kg
HD-40S 11/4” (32) 0.75  50  500  0.66  0.65  0.63  0.61  0.59  12'   83kg 95kg
HD-401S 114”(32) 1.1  E0 580  0.8  0.77  0.74  0.71  0.67  12 inches 412” 88kg 100kg
HD-50S 112”(40) 1.5  50  430  1.14  1.12  1.09  1.06  1.02  14' 4 inches 125kg 138kg
HD-501S 112”(40) 2.2  50  500  1.44  1.42  1.39  1.36  1.32  14 inches 41/2 inches 135kg 148kg
HD-60S 2”(50) 2.2  50  450  1.9  1.87  1.82  1.77  1.71  16 inches 5 inches 190kg 210kg
HD-601S 2”(50) 3  Share 540  2.41  2.34  2.29  2.24  2.18  16'   200kg 220kg
HD-80S 212”(65) 3  50  430  2.82  2.74  2.66  2.59  2.5  18' 51/2” 235kg 255kg
HD-801S 212”(65)   50  500  3.53  3.45  3.38  3.33  3.25  18 inches 6 inches 245kg 270kg
HD-100S 3” (80) 5.5  50  390  4.32  4.28  4.25  4.18  4.11  20 inches 51/2” 338kg 360kg
HD-1001S 3” (80) 7.5  50  420  5.41  5.32  5.25  5.18  5.11  20 inches 6” 350kg 375kg
HD-120S 4” (100) 7.5  50  400  10.42  10.38  10.34  10.3  10.26  20 inches 51/2” 502kg 530kg
HD-1201S 4”(100)   11  50  420  12.6  12.56  12.52  12.48  12.44  20 inches 6” 522kg 550kg

Performance curve

Noise curve

Installation Instructions and Precautions

1. During installation, use a spirit level to ensure the alignment is accurate to within 0.2 mm/1000 mm. The anchor bolt holes should be connected either by secondary grouting or expansion bolts.

2. During installation, first inspect the inside of the unit and confirm that there are no foreign objects present. Then, seal the inlet and outlet ports, thoroughly remove any rust or other debris from the pipelines, and connect the unit to the fan. Ensure that there are no air leaks at any of the connections.

3. To ensure the safe operation of the rotary fan, the fan must not bear any additional loads from pipes, valves, cabinets, racks, or other external components.

4. Install current and voltage meters in the circuit control system to monitor the operating status of the fan.

Model A B C D E F G H I J K L M N O P
HD-251S 755  255  480  145  240  510  170  80  410  50  130  120  90  65  115  3/4 inch
HD-30S 740  310  480  145  235  510  170  80  410  50  130  100  100  80  130  1"
HD-301S 740  310  480  145  235  510  170  80  410  50  130  100  100  80  130  1"
HD-40S 915  310  560  190  325  600  230  80  400  100  190  80  75  100  155  11/4 inches
HD-401S 915  310  560  190  325  600  230  80  400  100  190  80  75  100  155  11/4 inches
HD-50S 1130  345  620  205  325  800  265  80  600  100  225  100  120  90  160  11/2"
HD-501S 1130  345  620  205  325  800  265  80  600  100  225  100  120  90  160  11/2 inches
HD-60S 1235  385  750  235  380  850  300  80  600  125  260  185  110  95  185  2"
HD-601S 1235  385  750  235  380  850  300  80  600  125  260  185  110  95  185  2"
HD-80S 1480  445  790  270  430  1000  350  80  700  150  310  180  95  140  235  21/2 inches
HD-801S 1480  445  790  270  430  1000  350  80  700  150  310  180  95  140  235  21/2 inches
HD-1009 1620  560  880  325  460  1100  460  100  400  150  410  245  125  150  270  3 inches
HD-1001S 1620  560  880  325  460  1100  460  100  400  150  410  245  125  150  270  3 inches
HD-120S 1750  600  930  350  470  1200  460  100  400  150  410  255  130  150  280   
HD-1201S 1750  600  930  350  470  1200  460  100  400  150  410  255  130  150  280  4 inches

Keywords: High-temperature Roots blower, Biogas booster fan

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