helloaxialfan-blog

[helloaxialfan-blog]

WelcomeHow is a explosion-proof fan put in?

3) As soon as installing a normal explosion-proof fan, several varieties of rectangular horns (steel plates) with different thicknesses is often prepared and tweaked by several portions of overlap. The explosion-proof fan driven by coupling can be inspected with the coupling, and the particular level is adjusted.,and then fixed by welding.

The horn is inserted on the two sides from the anchor bolt, and through the adjustment of the amount, the adjustment bolt is additionally used for adjusting.

4) The anchor bolt holes of the anchor bolts passing from the base should be perpendicular towards the square holes for any anchor bolts.

5) In the gap between that anchor bolt hole plus the base and the muse concrete, sufficient mortar ought to be filled to guarantee the strength of the concrete structural fellow member.

When installing a good explosion-proof fan along with important or huge precision requirements, the mortar really should be filled into the hole with the anchor bolt earliest. After it is actually fully hardened, it ought to be re-aligned and adjusted to the level. After the actual installation accuracy is met, the mortar is going to be added. The gap between the base as well as foundation stick.

6) Following mortar is totally hardened, tighten the nut with the anchor bolt.

https://www.axial-fan.net/

[helloaxialfan-blog]

Origins blower start in addition to stop process

JUST ONE. Start the inspection in the Roots blower

Prior to Roots blower commences, the appearance belonging to the Roots blower is essential. Check whether that Roots blower shape and accessories are complete along with the circuit is typical. Before starting, firstly guarantee that the Roots blower appears good.

2, commence the Roots blower open vent valve : start

Start the actual vent valve initial, then press the button to start the Roots blower, await the Roots blower for you to stabilize, then in close proximity the vent valve.

3, start the view meter belonging to the Roots blower

Following the Roots blower will be started, the instruments and equipment with the Roots blower must be inspected to make sure that the instruments on the Roots blower will work properly.

4, stop the opening from the Roots blower control device

In the case from the normal operation of the Roots blower, first open the actual vent valve in addition to avoid the rabbit directly disconnecting the electricity supply of the Roots blower.

5 VARIOUS, stop the power outage with the Roots blower

Following opening the port valve, the Roots blower runs slowly after which you can stops at the moment. After stopping, Wholesale Booster Pipe Fans Factory check the regions of the Roots blower to see if you experience looseness, too loose belt and also tight belt.

[helloaxialfan-blog]

Which effects will affect the use of axial fans when designing axial fans?

　　Generally speaking, the designer will consider the rain protection problem of the axial flow fan,cooling & refrigeration fan Factory and ignore the snow and wind in winter. If it snows, the snow and sand will enter the fan from the upper part.

　　When the outdoor axial fan wind speed reaches a certain intensity, it is possible to enter the axial flow fan from the lower part. Some internal roller blind axial fan air backstop activities, we believe that it can prevent snow from entering the room, in fact, does not prevent snow from playing a role, when the snow gathers in the blind, and then through the indoor temperature melting will appear dripping phenomenon.

　　Designers of axial fans need to consider the environment in which the axial fans are used. If the environment and location are not considered, this is likely to result in an axial fan that does not work. Let us give an example. For example, in areas with frequent typhoons and dust storms, we must consider the poor wind resilience of axial flow fans. How to apply axial flow fans in high-centered environments with wind resistance. Planar and concave structures increase wind resistance. The strong wind resistance of the rain proves that the hat umbrella is not very ideal.

[helloaxialfan-blog]

How the pipe fan works

Common pipe fan uses ABS plastic to inject the twisted wing blades at one time. The fluid mechanics is maximized at high speeds, so the energy efficiency ratio is very high, reaching 70%, which means that the maximum wind power is delivered with the minimum motor power. This is an effect that ordinary centrifugal fans cannot achieve.

Therefore, the booster pipe fan is both energy efficient and windy. The ultra-high wind pressure can be connected to several meters of pipes for centralized ventilation. The main feature of the booster pipe fan is the high pressure. Replaced the traditional ventilation equipment.

The fan has no vibration, and the dynamic balance value is strictly in accordance with the international standard G6.3. Only such standard value can guarantee the superior quality of the fan. The main body of the fan is made of PP plastic, which is characterized by strong rigidity, high temperature resistance, environmental protection and large air volume. And can reduce noise to a certain extent.

[helloaxialfan-blog]

Use of centrifugal fans and air volume adjustment

The scope of use of centrifugal fans:

1. Any medium or material containing fluoride ion at any concentration and temperature;

2. An alkaline medium or material having a pH greater than 12 and a temperature higher than 80 ° C;

3. The reaction process of alternating acid and alkali materials;

4. Phosphoric acid medium or material with a concentration greater than 30% and a temperature greater than 180 °C.

Adjustment of the air volume of the centrifugal fan:

Adjustment method one:

Under the premise of the characteristics of the fan pipe network system, the pressure, air volume and power of the fan are changed by changing the rotation speed of the centrifugal fan to achieve the intended purpose. As the fan speed increases, the fan volume and pressure increase, and vice versa. Beierde point that the main advantage of this method is that there is no additional energy loss, so its economic performance is better.

Adjustment method two:

The characteristics of the pipe network system are changed by adjusting the throttle valve or changing the degree of opening of the card. In this adjustment case, the air volume is inversely proportional to the pressure and is also related to the degree of opening of the throttle or insert.

[helloaxialfan-blog]

What are the details of using a chiller?

Water curtain + wet curtain air cooler is the new darling of ventilation and cooling equipment in the new era. It is the economical and environmentally friendly cooling system in the world today. The following introduces some water curtain + negative pressure fan cooling considerations.

The water added to the mouth of the pool should be clean water to keep the wet curtain chiller line open and the water curtain high efficiency. If it is found that the water supply of the curtain is insufficient or uneven, check whether there is water shortage in the pool (the float valve in the pool can automatically replenish and cut water), whether the pump is running, and the water supply pipe and water pump inlet, especially on the water pipe. Is there any blockage in the small hole and check if the spray line is in the middle of the wet curtain. )

For the water curtain + wet curtain air cooler control switch should be installed indoors, before use, should ensure that there are no debris in the water curtain and pool, clean 1 or 2 times a year, need to drain the water in the pool when not in winter, Wrap it in a plastic cloth box to prevent debris from entering the machine and preventing dust.

Odor treatment

The main reason is that the cooling fan does not clean regularly, and the second is because the water quality has deteriorated. Because the dust is accumulated on the filter screen when the air cooler is used for a long time, the air cooler emits an odor.

1. When the chiller is used for a period of time, the inside of the filter and the copper sheet will accumulate dust. When the dust is too much, it will produce strange smell, which will seriously affect the quality of the air and affect the air volume.

2, because after the cooling fan is cooled, there will always be some moisture inside, so after the cold air is in place, the cooling fan that has no dry mildew function will stop immediately, so that the moisture inside will always be inside. After a long time, mold and musty will be formed.

[helloaxialfan-blog]

Fan classification and maintenance

A wind turbine is a mechanical machine that relies on input mechanical energy to increase gas pressure and deliver gas. It is a drive fluid machine.

Main structural components of the fan: impeller, outer casing, air inlet, bracket, motor, pulley, coupling, silencer, transmission (bearing), etc.

Fan Category:

According to the principle of operation, fans are divided into: turbine fans and volume fans.

Turbofan - A fan that delivers gas by rotating blades.

Capacity Fan - Compresses and transports gas machinery by changing the volume of the gas.

According to the direction of the airflow, the fan is divided into a centrifugal type, an axial flow type, a diagonal flow type (mixed flow type) and a cross flow type.

Fans can be divided into: axial fans, mixed flow fans, Roots blowers, roof fans, air conditioning fans, etc.

According to the pressure, the fan can be divided into a low pressure fan, a medium pressure fan and a high pressure fan.

Fans can be classified according to the materials used: such as iron shell fans (common fans), fiberglass fans, plastic fans, aluminum fans, stainless steel fans, etc.

Fan maintenance:

1. The fan must be used by a person and repaired by a person.

2. The fan is not allowed to work with the disease.

3. Regularly remove dust from the inside of the fan, especially dust, dirt and other impurities on the impeller to prevent corrosion and imbalance.

4. Fan maintenance must emphasize the first power outage and stop.

5. Regularly check the sensitivity of the thermometer and mimeograph.

6. In addition to replacing the lubricant after each disassembly, the lubricant should be replaced under normal conditions from March to June.

[helloaxialfan-blog]

How to make full use of centrifugal fans

The use of a centrifugal fan starts from its start. Sometimes there are problems with startup failures or very long startup times. There are many reasons for this. If the motor does not move, check the set value of the safety mechanism; if the motor rated power is too low, replace the motor; if the starting procedure is not correct, adjust the starting equipment; if the power consumption is too large when starting, verify that when starting When the gas flow control mechanism is in the closed position; if the rotor is stuck, move the fan by hand to check and investigate the cause of the jam (friction, obstacles, etc.); if the voltage at the motor is too low, Check the power line voltage - if the loss is too large, increase the power line. Many times users will find that the impeller always consumes energy in vain.

The gas forms a recurrent activity through leakage between the front cover and the current collector. Maintain a certain gap between the front cover of the centrifugal fan and the current collector and between the casing and the shaft. To ensure the reliability of the fan rotation. This can greatly alleviate this phenomenon. The problem that often occurs when the centrifugal fan is used is the vibration of the fan. It is not a simple matter to solve this problem fundamentally, but if the fan speed is reduced, it is a very good method, and the effect of this method is also obvious. With. However, it is also necessary for the user to judge what method is used to be more reasonable according to the specific conditions of the fan used.

The problem with the use of centrifugal fans is that the fan speed is unstable, what is the cause of this situation?Follow Beierde to see the reason.

(1) One of the four rectifier diodes has only a problem

(2) There is toner or carbon brush between the rotor and the commutator. It is difficult to repair. Firstly, the adjustable resistor is measured. The resistance value changes regularly with the adjustment. It proves that the potentiometer is Ok, there is no problem in measuring the thyristor. Since the diode is a high-current gold-sealed tube, the screw on one end is fastened to the circuit board, and the other end is soldered to the circuit board and removed from the circuit board. It was found that the positive and negative poles were loose, and then the side was shaken while measuring, confirming that the diode was good or bad.

(3) There are also many problems with thyristors, usually breakdown short circuit, open circuit, unable to trigger or poor internal contact.

(4) Adjustable resistance, the cabinet type centrifugal fan is installed on the control panel due to the adjustable resistance. The frequency of use is very high, and the time is long. The situation of poor contact is very common. If you find that the fan is unstable during the operation, you may use the four points mentioned above as the troubleshooting direction to quickly find out the cause and improve the efficiency of maintenance....