5.5kw right-handed 90 degree drying equipment matched with high-pressure centrifugal fan

When the impeller of the 9-19 high-pressure centrifugal fan rotates, due to the centrifugal force, the wind vane drives the gas to move forward and outward, forming a series of spiral movements. The air between the impeller blades accelerates and rotates in a spiral shape, squeezing the gas outside the pump body into the side groove (sucked in through the suction port). When it enters the side channel, the gas is compressed and then returns to accelerate and rotate between the impeller blades again. When air passes through the impeller and side groove along a spiral trajectory, each impeller blade increases the degree of compression and acceleration. As the rotation progresses, the kinetic energy of the gas increases, further increasing the pressure of the gas passing through the side channel. When the air reaches the connection point between the side groove and the discharge flange (the side channel narrows at the outlet), the gas is squeezed out of the blades and discharged from the pump body through the outlet muffler.

　　II5.5kw right-handed 90 degree drying equipment matched with high-pressure centrifugal fanModel and parametersPrecautions

1. Installation location - It must be installed indoors in a place that is not affected by wind and rain

2. Environmental temperature below -40 ℃

3. Relative humidity below -80%

4. Air quality - If the air contains corrosive or flammable gases such as acids and alkalis, it should not be transported by high-pressure blowers to avoid danger

5. Dust protection - Avoid using in places with large amounts of dust, powder, or fibers. If it is necessary to use in such places, please install a filter and regularly clean the dust attached to the filter and inside the high-pressure blower

6. Ventilation and heat dissipation - Please choose to use it in a well ventilated place and not in a sealed room or box

use

7. Placement space - For the convenience of column maintenance or repair, please avoid installing in overly narrow locations

8. Avoid vibration - Please install in a vibration free location; If vibration in the venue is unavoidable, anti vibration measures must be installed

Measures to prevent damage to the high-pressure blower caused by external vibrations

　　III90 degree right-handed drying equipment matched with high-pressure centrifugal fanApplication Industry

1. Industrial vacuum cleaner 2 Filling equipment 3 Central feeding system 4 Cleaning and drying equipment 5 Textile Machinery 6 Screen transfer printing equipment 7 Woodworking Machinery 8 Electroplating equipment 9. PCB board equipment 10 Laser equipment 11 Swimming Pool Equipment 12 Tunnel Engineering 13 Leather cutting equipment 14 Powder conveying 15 Printing equipment.

　　490 degree right-handed drying equipment matched with high-pressure centrifugal fanindustryterm

1. Traffic

The flow rate of the 9-19 high-pressure centrifugal fan refers to the volume of gas flowing through the fan per unit time. The units include m3/h, m3/min, and m3/s. In China, it is customary to use m3/h for ventilation fans and m3/min for blowers, but m3/s is mostly used in the design and performance calculation of ventilation fans. It must be noted that the volumetric flow rate of high-pressure centrifugal fans specifically refers to the volumetric flow rate at the "inlet" of the ventilation fan, because the pressure on each flow section of the ventilation fan is different, and the volumetric flow rate flowing through each flow section will also be different accordingly.

2. Full pressure

The total pressure of the 9-19 type high-pressure centrifugal fan is defined as the difference between the total pressure on the outlet section and the total pressure on the inlet section of the fan. The total pressure of an airflow at a certain point or section is equal to the sum of the dynamic pressure and static pressure at that point or section.

3. Dynamic pressure

The dynamic pressure of a high-pressure centrifugal fan is defined as the pressure represented by the kinetic energy of the gas at the outlet section of the fan. Or: Dynamic pressure is

The pressure required to accelerate a gas from zero velocity to a certain velocity.

The dynamic pressure is directly proportional to the kinetic energy of the airflow

Dynamic pressure only acts on the direction of airflow and is always positive

Pd＝0.5 ×ρV%*p2%*p%*b

In the formula, Pd=dynamic pressure Pa ρ=gas density kg/m% * p3% * p% * b V=velocity m/s

4. Static pressure

The static pressure of the 9-19 type high-pressure centrifugal fan is defined as the total pressure of the fan minus the dynamic pressure of the fan. In fact, static pressure is the pressure difference between a certain point in the airflow or a space filled with gas and atmospheric pressure. When the pressure at that point is higher than atmospheric pressure, it is a positive value, and when it is lower than atmospheric pressure, it is a negative value. Static pressure energy acts in all directions of a gas, independent of velocity, and is a measure of the potential in the gas. Ps＝P%*p%*pt%*b-Pd； In the formula, Ps=static pressure Pa; Pt=total pressure Pa; Pd=dynamic pressure Pa.

5. Shaft power

The shaft power of a high-pressure centrifugal fan refers to the actual power required by the fan. It includes the internal power of the fan and the mechanical losses of the bearings and transmission devices. The shaft power, also known as the input power of the ventilation fan, is actually the output power of the motor.

Fan parameter table

9-19-4.5A drying equipment is equipped with a high-pressure centrifugal fanAll of them are single suction, usually with 13 machine numbers ranging from 4A to 16A. The fan is usually made in two forms: right-handed and left-handed.

fan structure

The fan is mainly composed of impeller, casing, air inlet, bracket, etc

♦ Impeller: The fan has 12 blades;

♦ Chassis:Weld ordinary steel plates into a snail shaped shell as a whole;

♦ Air inlet:Make a convergent streamlined overall structure and fix it on the front cover plate with bolts;

♦ Transmission group: composed of main shaft, bearing box, coupling, etc. The spindle is made of high-quality steel and the bearing housing has an overall structure. Using rolling bearings, rolling shafts9-19-4.5A drying equipment is equipped with a high-pressure centrifugal fanInstallation precautions

1. Installation location: It must be installed indoors in a place that is not affected by wind and rain
2. Environmental temperature: below 40 ℃
3. Relative humidity: below 80%
4. Air quality: If the air contains corrosive or flammable gases such as acids and alkalis, high-pressure blowers should not be used for transportation to avoid danger. Explosion proof fans can be selected.
5. Dust protection: Avoid using in places with large amounts of dust, powder, or fibers. If it is necessary to use in such places, please install a filter and regularly clean the dust attached to the filter and inside the high-pressure blower
6. Ventilation and heat dissipation: Please choose to use it in a well ventilated place and not in a sealed room or box
7. Placement space: For the convenience of column maintenance or repair, please avoid installing in overly narrow locations
8. Avoid vibration: Please install in a vibration free location; If the vibration in the venue is unavoidable, anti vibration measures must be installed to prevent the high-pressure blower from being damaged by external vibrations.

Fan maintenance and storage

The usage environment should be kept clean regularly, the surface of the fan should be kept clean, and there should be no debris at the inlet and outlet. Regularly remove dust and other debris from the fan and pipeline.

► It can only be operated under safe and normal conditions of the wind turbine, while ensuring sufficient capacity and stable voltage of the power supply facilities. It is strictly prohibited to operate without phase. The power supply line must be a line and temporary power supply should not be used.

During the operation of the fan, if abnormal noise, severe motor heating, live casing, switch tripping, inability to start, etc. are found, the fan should be stopped immediately for inspection. To ensure safety, do not operate the fan for maintenance during operation. After inspection, a trial run should be conducted for about five minutes to confirm that there are no abnormal phenomena before starting the machine.

15.5kw right-handed 90 degree drying equipment matched with high-pressure centrifugal fanPurpose:

9-19High pressure centrifugal fans are generally used for forging and high-pressure forced ventilation, and can be widely used for conveying materials, conveying air, and gases that are non corrosive, non self igniting, and do not contain viscous substances. The temperature of the medium is generally not highAt 50 ℃ (not exceeding 80 ℃), the medium contains no more than 150mg/m of dust and hard particles³.

IIType of high-pressure centrifugal fan 9-19-4A:

This ventilation fan is a single suction type, withNO4. There are a total of 13 machine numbers, including 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10, 11.2, 12.5, 14, and 16.
The ventilation fan can be made in two types: right-handed and left-handed. Looking from one end of the motor, if the impeller rotates clockwise, it is called the right whirlwind, represented by "right"; The counterclockwise rotation is called the left cyclone machine, represented by "left".
The outlet position of the fan is represented by the outlet angle of the casing. Both "left" and "right" can be madeThere are six angles: 0 °, 45 °, 90 °, 135 °, 180 °, and 225 °.
The transmission mode of the fan isA式（NO4-6.3) and Equation D (NO7.1-16) Two types.

IIIStructure of high-pressure centrifugal fan 9-19-4A:

NO4-6.3Mainly composed of impeller, casing, air inlet, bracket, etc.:NO7.1-16 is mainly composed of impeller, casing, air inlet, transmission group, etc.
impeller:The 9-19 type fan has 12 blades, while the 9-26 type fan has 16 blades. All belong to the forward curved blade type. The outer edge of the impeller diffuser has a high circumferential velocity of no more than 140m/S. After the impeller is formed, it undergoes static and dynamic balance correction to ensure smooth operation.
Shell: Welded into a snail shaped shell with ordinary steel plates as a whole.
Air inlet: Made into a convergent streamlined overall structure, fixed to the front cover plate group with bolts.
Transmission group: composed of main shaft, bearing box, coupling, etc. The main shaft is made of * * steel, and the bearing box has an overall structure, using rolling bearings and lubricated with bearing grease.

4Installation of High Pressure Centrifugal Fan 9-19-4A:

Before the installation and use of the ventilation fan, a comprehensive inspection of all components of the fan should be carried out to ensure that the parts are complete, the rotation direction of the impeller and the casing is consistent, and the connections between each part are tight. Whether the impeller, main shaft, and other major components are damaged, and whether the transmission system is flexible.
During installation: Pay attention to checking the casing to ensure that there are no tools or debris that have fallen in or left behind. In some combinations, in order to prevent rust and reduce disassembly difficulties, a layer of lubricating grease or mechanical oil should be applied. The interface between the fan and the foundation, and the connection of the inlet and outlet air ducts should be adjusted to fit naturally. Forced connection is not allowed, and the weight of the ducts should not be added to the various components of the fan. And pay attention to ensuring the horizontal position of the fan.
Installation requirements:
（1) Install according to the position and dimensions shown on the drawing, and to ensure high efficiency, it is particularly important to ensure the axial and radial clearance dimensions between the air inlet and the impeller.
（2) After installation, test the transmission assembly and check for any tightness or collision with the fixed parts.
（3) After all installations are completed and the overall inspection is qualified, the fan can be put into trial operation.
In order to prevent motor overload and burnout, it is necessary to start the fan with no load (close the inlet valve and slightly open the outlet valve). If the situation is good, gradually open the valve until the specified working conditions are met. During operation, the current should be strictly controlled and should not exceed the rated value.
Operation of the fan:
（1) Before starting the fan, the following preparations should be made:
aClose the inlet valve and slightly open the outlet valve.
bCheck the clearance dimensions of each part of the fan, and whether there is any collision or friction between the rotating and fixed parts.
（2) After the fan is started and reaches normal speed, it should be checked regularly during operationbearingIs the temperature normal? When there are no special requirements for the bearing temperature, the temperature rise of the bearing should not exceed 40 ℃; The root mean square vibration velocity of the bearing part shall not exceed 6.3mm/s. If severe vibration, impact, or rapid increase in bearing temperature are found in the fan, emergency shutdown must be carried out.

5Maintenance of High Pressure Centrifugal Fan 9-19-4A:

1Precautions for fan maintenance work:
① Only the fan equipment can operate normally.
② When the fan equipment is started after maintenance, attention should be paid to whether all parts of the fan are normal.
③ Regularly remove impurities such as dust and dirt inside the fan, and prevent rusting.
④ To ensure personal safety, maintenance of the fan must be carried out while parked.
2Precautions for normal operation of the fan:
① If any abnormal phenomena are found during the operation, parking, or operation of the fan, immediate inspection should be carried out. If there are minor faults, the cause should be identified and eliminated in a timely manner. If a major malfunction is discovered, the vehicle should be stopped immediately for maintenance.
② Except for changing the lubricant after each maintenance, the lubricant should be replaced according to the actual situation under normal circumstances.