CN204739649U - Oil fume purification range hood - Google Patents

Abstract

The utility model discloses an oil smoke purifies smoke ventilator, its incrustation install the emission fan that is used for smoke ventilator inside production wind -force to the side of on the shell the bottom side face of shell is installed and is used for making the flue gas to get into the inside pump orifice of smoke ventilator, install divertor and silk screen hole composite bed under the interior follow of shell is last in proper order, the divertor passes through the top of support fixed mounting at silk screen hole composite bed, the shower head is installed to silk screen hole composite bed one side, the shower head has the immersible pump through the pipeline intercommunication to immersible pump fixed mounting is on the shell, the beneficial effects of the utility model are that: the utility model provides a smoke ventilator of middle no oil smoke pipeline purifies through the front end and makes the absorption of oiliness flue gas integument. The negative pressure of the production through discharging the fan makes the oil smoke make the grease fully cool down and degrade and integrate into the aqueous solution through weak alkaline solution. Make 100% degradation of grease composition in the oil smoke retrieve, the smoke and dust filters and reaches 98%.

Description

Oil fume purification range hood

technical field

The utility model relates to the technical field of range hoods, in particular to a range hood for purifying oil fumes.

Background technique

In the prior art, there are mainly the following methods for dealing with oil fume in range hoods:

1. Use a common range fume hood. This method is to use the fume to naturally absorb the fume in the flue gas when it passes through the metal sheet. The exhaust fan installed on the pipeline provides power to make the fume enter the fume hood. This method will cause a large amount of grease to remain in the fume hood. Grease is formed on the surface of the metal sheet through which the oil fume passes, and the evolution rate is extremely low, which cannot meet the emission standards. In actual use, it is easy to cause fires, resulting in loss of personnel and property. At the same time, it is necessary to frequently clean the pipes and cause high costs;

2. Use degradable range fume hoods. This method is to install an atomizing head inside the fume hood, pump high-pressure water for atomization, and mix the oil fume with the atomized water through the fan installed on the exhaust pipe, and make the oil-water mixture The method of backflow removes the oil fume. Since the contact area between the atomized water and the oil fume is very small, it cannot fully absorb the oil fume. Therefore, after a long period of use, there is still a large amount of oil dirt in the oil fume pipe that needs to be cleaned, resulting in substandard emissions and fire hazards. , At the same time, the cost of frequent cleaning of the pipeline is high;

3. Using electrostatic oil fume adsorption, this method is to polarize the oil fume particles through the electric field to charge the oil fume particles, and the oil fume will be adsorbed when it passes through the electric field substrate. In the initial use, the oil fume adsorption efficiency of this method is very high, because the oil fume has a strong viscosity And the large resistivity can adhere to the molybdenum wire and the electric field substrate. After a period of use, it is basically unable to absorb the oil fume. Because the molybdenum wire is charged and heats up, it is very easy to solidify the oil fume adsorbed on the bottom layer, which is not conducive to cleaning.

Utility model content

The utility model overcomes the extremely low evolution rate of several oil-absorbing fume methods in the prior art, which cannot meet the emission standards, and is easy to cause fires in the actual use process, resulting in loss of personnel and property, and at the same time requires frequent cleaning of pipes to cause high costs, etc. Insufficient, provide and solve a kind of oil fume purifying effect better, the oil fume purifying stability is higher, the oil fume purifying range hood that has no fire hidden danger is provided.

In order to achieve the above object, the utility model adopts the following technical solutions:

A range hood for oil fume purification, which is covered with a casing, an exhaust fan for generating wind force inside the range hood is installed on the upper side of the casing, and a discharge fan for making smoke enter the range hood is installed on the bottom side of the casing. Inside the suction port, a deflector and a wire mesh composite layer are sequentially installed in the shell from top to bottom, the deflector is fixed and installed above the wire mesh composite layer through a bracket, and the wire mesh A shower head is installed on one side of the composite layer, and the shower head communicates with a submersible pump through a pipeline, and the submersible pump is fixedly installed on the casing.

In the redesign process of this technical solution, a range hood with no oil fume pipe integrated with the exhaust fan and the casing is firstly formed. The oil fume cannot form grease in the pipe without the oil fume pipe, which makes the range hood easier to clean;

Then through the deflector, wire mesh composite layer, sprinkler head and submersible pump in the shell, through the above structure, the flow of internal gas is forced to be balanced through the deflector in the working process of the range hood, so that the inside of the shell is distributed Part of the flow tends to be uniform, the exhaust fan and the submersible pump work at the same time, the water is sprayed from the spray head from the tangent surface with the wire mesh composite layer, and the water is formed on the wire mesh composite layer under the suction of the exhaust fan. When a certain depth of aqueous solution is drawn, the oil fume first enters the range hood through the suction port, and is divided into small flow sources when passing through the composite layer of the wire mesh orifice plate, and then is quickly absorbed after fully contacting the aqueous solution above the composite layer of the wire mesh orifice plate. Cooling, under the interaction of gas cooling and wire mesh division on the composite layer of the wire mesh board, the oily mist produces fine bubbles in the aqueous solution, which increases the contact area between the oily mist and the aqueous solution, and makes the oily fume completely absorbed in the water , so that the gas discharged from the fume hood meets the requirements of the environment. Compared with the degradable range fume hood used in the prior art, this technical solution can fully absorb the fume due to the large contact area between the aqueous solution and the fume. It is purified before entering the pipeline. After a long period of use, there will be no oily dirt in the fume pipeline that needs to be cleaned, resulting in substandard emissions, etc., thus avoiding fires and saving cleaning costs.

A further technical solution is that the composite layer of wire mesh holes is a groove with a triangular cross section.

In this technical solution, the mesh composite layer is designed as a triangular groove in the cross section, so that the two sides of the mesh composite layer are high and the middle is low, so that the water on the top of the mesh composite layer can flow from both sides to the middle. Flow to facilitate the drainage of moisture.

A further technical solution is that the pressure in the area above the wire mesh composite layer is negative 300Pa to negative 800Pa.

In this technical solution, by controlling the pressure in the area surrounded by the wire mesh orifice plate composite layer, the discharge fan, and the front, rear, left, and right panels within negative 300Pa to negative 800Pa, the aqueous solution above the wire mesh orifice plate composite layer can be guaranteed. The height of the surface reaches the optimum position.

A further technical solution is that the mesh hole composite layer is composed of a stainless steel mesh and a stainless steel plate with holes, and the stainless steel mesh is installed on the stainless steel plate with holes.

A further technical solution is that the number of layers of the stainless steel wire mesh is 1-3 layers.

A further technical solution is that the number of layers of the stainless steel wire mesh is 2 layers.

A further technical solution is that the diameter of each hole on the surface of the stainless steel plate with holes is 2mm-10mm.

A further technical solution is that the diameter of each hole on the surface of the stainless steel plate with holes is 6mm.

A further technical solution is to further include a filter screen plate, and the filter screen plate is covered and installed on the suction port.

At the same time, in order to achieve a better effect of removing oil fume, the utility model can mix the water extracted from the submersible pump into an alkaline solution, and 100% of the grease components in the oil fume can be degraded and recovered through the alkaline solution.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model provides a range hood with no oil fume pipe in the middle, and the gas containing oil fume is absorbed through the front end purification. The negative pressure generated by the exhaust fan makes the oil fume pass through the weak alkaline solution to fully cool down the oil and degrade it into the aqueous solution. 100% degradation and recovery of the grease components in the range hood, and 98% of the dust filtration. At the same time, since there is no oil fume and other pollutants in the gas discharged by the range hood, the pollution to the air environment can be reduced and the impact on the smog can be avoided. .

Description of drawings

Fig. 1 is a schematic structural view of a lampblack purifying range hood according to an embodiment of the present invention.

As shown in Figure 1, the names of the corresponding reference signs are:

1 discharge fan, 2 deflector, 3 spray head, 4 submersible pump, 5 composite layer of wire mesh orifice plate, 6 suction port, 7 casing.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further elaborated.

A kind of oil fume purification range hood as shown in Figure 1, it wraps shell 7, is installed on the upper side of described shell 7 and is used for the exhaust fan 1 that produces wind power inside range hood, on the bottom side of described shell 7 A suction port 6 for making smoke enter the inside of the range hood is installed, and a deflector 2 and a wire mesh composite layer 5 are sequentially installed in the casing 7 from top to bottom, and the deflector 2 is fixed by a bracket Installed above the wire mesh composite layer 5, a shower head 3 is installed on one side of the wire mesh composite layer 5, the shower head 3 communicates with a submersible pump 4 through a pipeline, and the submersible pump 4 is fixedly installed in the casing 7, the wire mesh composite layer 5 is a groove with a triangular cross section, the pressure in the area above the wire mesh composite layer 5 is negative 300Pa to negative 800Pa, and the wire mesh composite layer 5 is made of stainless steel Wire mesh and stainless steel plate with holes, the stainless steel wire mesh is installed on the stainless steel plate with holes, the number of layers of the stainless steel mesh is 1-3 layers, the surface of each hole of the stainless steel plate with holes The diameter is 2mm-10mm.

According to an embodiment of the present utility model, the pressure in the area above the wire mesh hole composite layer 5 is negative 500Pa, the number of layers of the stainless steel wire mesh is 2 layers, and the diameter of each hole on the surface of the stainless steel plate with holes is 6mm.

According to an embodiment of the present invention, a filter screen plate is also included, and the filter screen plate is covered and installed on the suction port 6 .

The above specific embodiments describe the essence of the utility model in detail, but can not limit the protection scope of the utility model. Obviously, under the enlightenment of the utility model, those of ordinary skill in the art can also make many improvements and modifications. It should be noted that these improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims (9)

1. a fume purifying smoke exhaust ventilator, its incrustation (7), at the upper side of described shell (7), the discharge blower fan (1) for producing wind-force to smoke exhaust ventilator inside is installed, be provided with at the bottom side of described shell (7) and be provided for the pump orifice (6) that flue gas enters smoke exhaust ventilator inside, it is characterized in that, under upper, air deflector (2) and silk screen hole composite bed (5) are installed successively in described shell (7), described air deflector (2) is fixedly mounted on the top in silk screen hole composite bed (5) by support, composite bed (5) side, described silk screen hole is provided with spray head (3), described spray head (3) has immersible pump (4) by pipeline communication, and immersible pump (4) is fixedly mounted on shell (7).

2. fume purifying smoke exhaust ventilator according to claim 1, is characterized in that, described silk screen hole composite bed (5) is cross section groove triangular in shape.

3. fume purifying smoke exhaust ventilator according to claim 1, is characterized in that, the pressure of described silk screen hole composite bed (5) upper area is for negative 300Pa is to negative 800Pa.

4. the fume purifying smoke exhaust ventilator according to any one of claim 1-3 claim, it is characterized in that, described silk screen hole composite bed (5) is made up of stainless steel cloth and corrosion resistant plate with holes, and described stainless steel cloth is arranged on corrosion resistant plate with holes.

5. fume purifying smoke exhaust ventilator according to claim 4, is characterized in that, the number of plies of described stainless steel cloth is 1-3 layer.

6. fume purifying smoke exhaust ventilator according to claim 5, is characterized in that, the number of plies of described stainless steel cloth is 2 layers.

7. fume purifying smoke exhaust ventilator according to claim 4, is characterized in that, the diameter in each hole, described corrosion resistant plate with holes surface is 2mm-10mm.

8. fume purifying smoke exhaust ventilator according to claim 7, is characterized in that, the diameter in each hole, described corrosion resistant plate with holes surface is 6mm.

9. fume purifying smoke exhaust ventilator according to claim 1, is characterized in that, also comprise screen pack, and described screen pack covers and is arranged on pump orifice (6).