The working principle and precautions for the use of the hotel fume purifier

Electrostatic oil fume purifier: It uses the electrons emitted by the cathode in the high-voltage electric field, as well as the negative ions generated by the electrons colliding with air molecules to capture oil smoke, black smoke and oil mist particles, so that the particles are electrified, and then use the action of the electric field to make the charged particles adsorbed by the anode, so as to achieve the purpose of removing and purifying the oil smoke.

Oil fume purifier, as the name suggests, refers to a device that treats kitchen fume exhaust gas to improve the kitchen environment. So how does a fume purifier work? What do I need to pay attention to when using it? See below.

First, the working principle of the oil fume purifier.

Oil smoke through the purifier, under the action of high-voltage plasma electric field, the tiny oil particles and gas are ionized charged, the charged tiny ions (oil particles) are collected by the adsorption unit, and flow into and deposit into the oil storage tank of the purifier, the harmful gases in the smoke and dust are sterilized by the ozone generated in the electric field, and the odor is removed, the harmful gases are removed, the removal rate of oil smoke is detected by the monitoring department identified by the State Environmental Protection Administration, the removal rate reaches more than 95%, and the clean air is discharged through the air outlet and discharged up to the standard.

2. Precautions for the use of oil fume purifiers.

1. The connection of each air duct shall take anti-leakage measures. To ensure the contagious efficacy of the device.

2. The reducer air duct adjacent to the air inlet and outlet of the equipment should be as smooth as possible to ensure the infectious effect of the equipment. Straight pipes that are more than 4 times longer than the diameter of the pipe must be assembled and connected with smooth pipes.

3. Therefore, the soft connection must be used when the air duct connection of the light fan of the equipment is used. If the device is vibrated while it is running, it will not be able to perform properly.

4. In order to ensure the infection result, the air volume of the individual fan is supposed to be greater than the intended air volume of the equipment. The equipment must work under the intended air volume, and the user can use the inverter to control the fan or install a regulating valve device at the air outlet of the fan.

5. To reduce the additional resistance of the fan. It is best to keep a 1-2 meter straight pipe section at the inlet of the fan.

6. The equipment should work in a negative wind pressure state to ensure the infectious effect of the equipment. That is, the fan must be located in front of the equipment.

7. When the air is exhausted by a unified exhaust fan, when multiple devices are used in parallel. It is also necessary to ensure that the proportion of the air volume allocated to each device is close to the proportion of the air volume that he intends to handle only for the elderly.

8. Awnings for rainproof and sunshade should be installed for outdoor assembly. It can affect the normal handling life of the equipment and increase the unnecessary maintenance cost.

1. The principle of the fume purifier will be slightly different, like the general fume purifier principle, the working principle of the fume purifier adopts the dual role of mechanical separation and electrostatic purification. The fume-containing exhaust gas is sucked into the pipeline under the action of the fan, and enters the first-stage purification and separation equalization device of the fume purifier, and the gravity inertia purification technology is used to physically separate and balance the oil mist particles with large particle size.

2. The separated large particles of oil droplets flow into the oil and discharge under the action of knowing their own gravity. The remaining tiny particle size oil mist particles enter the high-voltage electrostatic field, and the high-voltage electrostatic field adopts the electrostatic working principle of two-stage high and low voltage separation, and the electric field of the first-stage ionization plate charges the tiny particle size oil mist particles and becomes charged particles, which are adsorbed and partially carbonized immediately after reaching the second-stage adsorption plate. At the same time, the ozone excited by the high-voltage electrostatic field effectively degrades harmful components, plays the role of disinfection, deodorization, and finally discharges clean air through the filter grid.

Lap the game.

Mechanical purification and electrostatic purification have dual effects;

After the smoke-containing exhaust gas is sucked into the pipeline by the fan, it first enters the primary device - the purification rectifier chamber, and the gravity inertia purification technology is adopted, and the special structure of the chamber gradually separates the large particle size pollutants by classification and physical separation, and balances the rectification;

The separated large oil droplets flow into the oil tank and are discharged under the action of their own gravity. The remaining small particle size pollutants enter the secondary device - the high-voltage electrostatic field, the electrostatic field is partially two-stage, the first stage is the ionizer, the strong electric field charges the particles and becomes charged particles, and these charged particles are immediately adsorbed by the collection electrode after reaching the second-stage dust collector, and partially carbonized. At the same time, the high-voltage electrostatic field effectively degrades harmful ingredients and plays a role in disinfection and odor removal.

Finally, through the filter grid, the clean air is discharged outside.

How to clean a fume purifier:

1.Pressure cooker steam flushing method. Boil the cold water in the pressure cooker, remove the pressure limiting valve when the steam is continuously discharged, open the range hood, and align the steam water column with the rotating fan blades, because the high hot water steam continues to rush into the fan blades and other components, the oil and sewage will flow into the waste oil cup along the road until there is no oil in the oil cup;

2.Detergent, vinegar soaking method. Remove the range smoke impeller, soak it in a basin of warm water mixed with 3---5 drops of dish soap and 50 ml of vinegar, soak for 10-20 minutes, and then scrub with a clean rag.

The housing and other parts are also cleaned with this solution. This method has no damage to people, no corrosion to the device, and the surface still retains the original luster after cleaning;

3.Liquid soap surface application. Make the soap into a paste, and then apply it to the surface of the impeller and other devices, after the range hood has been used for a period of time, remove the impeller and other devices, wipe it with a rag, and the oil stain will fall off.

After turning off the switch, wipe the surface of the range hood, the oil and gas are still hot, and it is easiest to clean. If you are using a turbo range hood, you can use kitchen grease cleaner to spray into the range hood, wait for the detergent to work, and then turn on the range hood switch, and use centrifugal force to remove the softened oil stain. If you are using an oil-mesh range hood, the oil-mesh must be removed, soaked in hot alkaline water or degreasing agent and cleaned.

1.Catalyst method.

The principle is to use the heat generated by high-temperature combustion to carry out oxidation reaction, and convert the pollutants in the oil smoke exhaust gas into CO2 and H2O and other substances, so as to achieve the purpose of purification. In the combustion process, the oil smoke exhaust gas is passed through the self-purifying catalyst, and the catalytic reaction of the catalyst is conducive to the conversion of pollutants. Generally, ceramic or metal honeycomb is used as a carrier for oxidation catalysis.

This type of fume purification equipment is only suitable for occasions with very low fume concentration, such as eating raw food or making semi-finished products.

2.Activated carbon adsorption method.

Use granular activated carbon or activated carbon fiber felt to adsorb pollutant particles in oil smoke. The characteristics of this equipment are similar to those of filtration and purification equipment, but the effect of removing oil smoke odor molecules is better.

3.Electrostatic treatment.

Under the action of the electric field and the applied high voltage, electrons emitted from or near the wire of the negative electrode rapidly move towards the positive electrode, colliding with the gas molecules and ionizing. When the oil smoke exhaust gas passes through this high-voltage electric field, the oil smoke particles are charged due to the collision and capture of gas ions in a very short time, and the electric field force moves to the positive electrode dust collection plate, so as to achieve the separation effect. This kind of equipment has less investment, small footprint, no secondary pollution, and low operating costs.

Due to the ease of capturing small particle size dust, the purification efficiency is high, up to 85 to 95%. The difference between its purification mechanism and the gas method is that the separation force is an electrostatic force, which acts directly on the particles, rather than on the gas flow, so it has the characteristics of low energy consumption and low resistance.

The principle of Shuangni fume purifier mainly uses an ionization separation structure similar to the superposition of the plate, the plate electric field is divided into the ionization zone and the adsorption area, the device that separates each other, the fume exhaust gas first passes through the ionization zone, and the ionization zone emits a voltage of 12kV for ionization, and the fume becomes a positively charged particle, thus entering the adsorption zone, and the adsorption zone emits a voltage of 6kv, and the positively charged fume particles are adsorbed in the adsorption zone due to the action of the electric field force to achieve the purification effect.

The working principle of the double ani fume purifier.

Electrostatic oil fume purifier: It uses the electrons emitted by the cathode in the high-voltage electric field, as well as the negative ions generated by the electrons colliding with air molecules to capture oil smoke, black smoke and oil mist particles, so that the particles are electrified, and then use the action of the electric field to make the charged particles adsorbed by the anode, so as to achieve the purpose of removing and purifying the oil smoke.

It's so complicated, the people who make restaurants can't understand it. To put it simply, it is to use a high-voltage current to ionize the fume, and all the fumes that pass through the fume purifier will be adsorbed to the smoke collection board, and then discharge the hot air without fumes. The Shuangni oil fume purifier on the market is one of the better smoke exhaust effects.

Precautions for cleaning and maintenance of oil fume purifier.

1.Use the fume purifier for as long as possible.

After the fume purifier is started, the use time should be extended as much as possible, and it should not be opened and closed frequently, so that the service life of the fume purifier will be shortened, and the power consumption of the fume purifier itself will not be very large.

2.Clean and maintain the fan regularly.

In our daily life, after using the fan for a long time, we will find that the fan blade has a layer of black and black things, which greatly affects the air volume and appearance, and the same is true for the fan. If the fan impeller is not cleaned, a thick layer of dust will accumulate, resulting in a decrease in wind rate, affecting the purification efficiency, and even crashing. It is necessary to frequently check whether the fan and the purification exhaust pipe are smooth, and replace the lubricating oil for the fan regularly.

3.Regularly drain the oil and clean the dirt from the oil fume purifier.

Under the long-term operation of the equipment, a lot of oil will accumulate, the bottom valve should be opened regularly to discharge the dirty oil of the equipment, and scrub some oil dirt on the surface of the oil fume purifier to avoid the erosion of oil dirt on the parts of the oil fume purifier, affecting the purification efficiency and service life.

4.Regularly clean and maintain the electric field of the oil fume purifier.

Most of the electrostatic fume purifiers on the market can be divided into plate electric field and honeycomb electric field, and the cleaning methods and cleaning cycles of different electric fields are also different. The cleaning cycle of plate electric field is generally about 1 month, and the cleaning cycle of honeycomb electric field is generally about two months. We need to carry out regular cleaning and maintenance according to the cleaning methods provided by the oil fume purifier manufacturer, which can effectively extend the service life of the purifier equipment.

When cleaning and maintaining the fume purifier, all power should be turned off, and for safety, the high-voltage part of the equipment should be opened by professional maintenance personnel for disassembly and debugging.

Precautions for installation of oil fume purifier.

1.There are different models of oil fume purifiers, and the air volume of different types of purifiers is also different, so it is necessary to ensure that the ventilation volume in the purification system is within the treatment range of the purifier.

2.The wind speed in the pipeline should be designed at 11-12m s, and the radius of the center line of the elbow is =.

3.To ensure that the oil fume purifier is installed horizontally, the purifier must be reliably grounded (the purifier has three outgoing wires, the red line and the green wire are connected to 220V AC, and the yellow and green wires are grounded).

4.The angle between the hypotenuse of the reducer (small to large) and the axis <=70 degrees, and the angle between the hypotenuse and the axis of the reducer (large to small) is <=15 degrees.

5.The fan needs to install a shock absorber, the inlet and outlet air duct connection needs to be installed with a soft connection, the inlet of the fan should retain a 1-2 meter straight pipe section to reduce the additional resistance of the fan, and the fan needs to be installed behind the fume purifier to ensure the purification efficiency of the fume purifier.

6.For the fume purifier installed outdoors, even if the fume purifier itself is made of material that can prevent rain and sun, long-term exposure to the sun and rain will definitely accelerate the aging of the purification equipment, so it is necessary to install an awning that is rainproof and sun-shading.

It is necessary to pay attention to daily maintenance and maintenance, such as regular cleaning, to maintain the purification effect of the equipment.

Precautions for the use of oil fume purifier:

1. It needs frequent cleaning and maintenance. If it is not cleaned for a long time, it may cause the oil circuit to be blocked, and then the waste oil will accumulate, the motor load will increase, and the motor will burn out in serious cases. The flue is narrow or the smoke exhaust pipe is too long, resulting in large suction and small displacement, and the two are disproportionate, so that the residual air circulation in the wind silo is intensified, causing the whole machine to shake and make great noise.

2. Do not use a moist rag and sliding detergent to wipe the range hood switch when cleaning, as long as the oil circuit is unblocked, and it is best to need professionals to clean it.

3. If it is a large-scale fume purifier product, it must need professionals to clean, and the larger equipment is in hotels, restaurants, canteens and other places, and the purifier is not only conducive to smooth kitchen smoke exhaust, but also can eliminate fire hazards.

Note that:

The fume purifier needs to be cleaned every 2 months.

During use, you need to observe the running status of the equipment, and if the fault is displayed, you must turn off the power switch in time.

Do not touch the device in operation.

If the equipment needs to be repaired, first contact the installer to inquire.

If the fume purifier is not in use, it can be turned off.

Precautions in the use of oil fume purifier:

1. A three-prong power socket must be configured, and its grounding electrode must be connected to a reliable grounding wire.

2. The outlet of the smoke pipe should be avoided in the windshield, so as not to affect the emission of the flue gas due to the strong wind outside, and the smoke exhaust pipe is strictly forbidden to be connected to the hot flue.

3. Minimize the convection of kitchen air.

4. When the fume purifier is running, never touch the fan with your hands, let alone insert it with a hard object.

5. When using the oil pan, it must be carefully taken care of to prevent the flame from being put into the machine.

6. When using the pressure cooker to cook, if the safety valve is broken, the fume purifier should be closed in time to prevent the ejects from being injected into the machine.

Precautions for cleaning and maintenance of oil fume purifier:

1. When cleaning the fume purifier, the power supply should be cut off, and it is strictly forbidden to clean the fume purifier with electricity.

2. The gas sensor should be removed and cleaned every half a month.

3. To clean the oil stain on the surface of the casing, you can clean it with a soft cloth dipped in neutral cleaning solution.

The working procedure of oil fume purifier cleaning:

1. Disassemble the cleaning parts: first cut off the power supply of the range fume purifier and remove the oil fume purifier from the hoisting position, then disassemble the oil fume purifier and take it out in turn: lighting bulb, oil collection box, bottom plate, sealing ring, impeller.

Finally, the inner core of the fuselage is proposed.

2. Soak the cleaning parts: find a larger container, pour in the cleaning liquid, and place the removed parts to soak. The amount of cleaning solution should not be too small or too much, and the cleaning parts that can be soaked shall prevail. Large items should be wiped.

Rinse with a cloth dampened with cleaning solution. The soaking time of the cleaning parts is determined according to the degree of oil stain, generally 15 to 20 minutes.

3. Brushing dirt parts: the oily parts after soaking are relatively easy to clean, and they can be cleaned by repeated cleaning with iron brushes and brushes dipped in cleaning liquid. However, the oil fume purifier with serious oil pollution should take special cleaning measures.

Wash well. The usual method is to first use a flat-headed snatcher and other tools to snatch off the thicker oil stain, and then soak it, and then use caustic soda water to scrub the serious oil stain, and must wear rubber gloves when brushing to prevent caustic soda.

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