CN205690479U - A kind of oily fume exhauster of protection from fumes diffusion - Google Patents

Abstract

An anti-smoke diffusion smoke exhaust device is composed of a main exhaust system, an anti-smoke diffusion system and a liquid collection system. The main exhaust system is composed of a smoke collection hood, a main exhaust fan and an exhaust pipe. The main exhaust fan is arranged at the top of the upper part of the smoke collection hood, and the exhaust pipe is arranged at the upper end of the main exhaust fan and is fixedly connected with the smoke collection hood; The anti-smoke diffusion system includes four baffles, which are respectively arranged on the four sides of the bottom of the smoke collection hood; the anti-smoke diffusion system also includes a smoke accumulation fan and four retractable air ducts, which are respectively arranged at the four corners of the bottom of the smoke collection hood In the gap between two adjacent baffles, there is a list of air holes on the pipe wall of the telescopic air duct, and the smoke gathering fan is arranged at the upper end of the telescopic air duct; the liquid collection system consists of a liquid collection tank and a liquid collection The liquid collecting tank is set on the inner wall of the upper part of the smoke collecting hood, and is connected with the liquid collecting box through a special delivery pipeline. The utility model is easy to use, has good effect, can be used flexibly according to the oil fume situation, and is energy-saving and environment-friendly.

Description

An oil fume exhaust device for preventing smoke diffusion

technical field

The utility model relates to an oil fume exhaust device, in particular to an oil fume exhaust device for preventing the diffusion of smoke.

Background technique

With the gradual enhancement of people's health awareness, every household has installed a range hood in the kitchen to discharge the oil fume. Generally, the range hood is placed above the stove, which can remove the waste burned by the stove and the harmful to human body produced during the cooking process. The lampblack is quickly sucked out and discharged outside, reducing pollution, purifying the air, and has the function of anti-virus and explosion-proof safety guarantee. However, with the use of the range hood, the lampblack will slowly adhere to the range hood, and it needs to be cleaned regularly before it can be used normally.

There are two main ways for the existing range hood to suck oil fume, one is an upward suction type, and the other is a side suction type. Although most of the fumes can be controlled well in the initial stage of use, after a short period of time, after the fan dirt is attached, the control of the fumes decreases rapidly, and it is easy to disperse the fumes. Especially when there is a horizontal wind blowing, part of the solid and liquid matter splashes on the stove and the wall, forming a large number of stains, and the smoke also spreads to the whole room, and the indoor air is full of peculiar smell, which reduces the air quality in the room . And usually in order to ensure the smoke exhaust effect, the power of the exhaust fan is generally set relatively high, not only the power consumption is high, but also the noise during use is relatively obvious.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides an oil fume exhaust device which is flexible in use and has good effect in preventing the diffusion of smoke.

In order to achieve the above object, the scheme that the utility model takes is:

An anti-smoke diffusion oil fume exhaust device is composed of a main exhaust system, an anti-smoke diffusion system and a liquid collection system,

The main exhaust system is composed of a smoke collection hood, a main exhaust fan and an exhaust pipe. The smoke collection hood is divided into two parts: the bottom and the upper part. The oil fume channel, the main exhaust fan is set at the top of the upper part of the fume collecting hood, and the exhaust pipe is set at the upper end of the main exhaust fan and is fixedly connected with the fume collecting hood;

The anti-smoke diffusion system includes baffles, and there are four baffles, which are respectively arranged on the four sides of the bottom of the smoke collection hood, and together form a converging cavity for limiting the diffusion of oil fume;

The anti-smoke diffusion system also includes a smoke gathering fan and a telescopic air duct. The telescopic air duct is a multi-section structure, and the diameter of each section decreases from top to bottom, and is connected by sliding in sequence. , which are respectively arranged at the four corners of the bottom of the smoke collecting hood and in the gap between two adjacent baffles. There is a list of air holes on the tube wall of the telescopic air duct. On the four telescopic air ducts The air outlet directions of the four listed air holes are along the same rotation direction and are inclined upward. Blow out from the air outlet, gather the oil fume in the converging cavity, prevent the oil fume from diffusing out from the gap between the baffles, and form a gas vortex flowing to the main exhaust fan;

The liquid collection system is composed of a liquid collection tank and a liquid collection box, wherein the liquid collection tank is set on the inner wall of the upper part of the smoke collection hood, connected with the liquid collection box through a special delivery pipeline, and the main exhaust fan is thrown out when it rotates at high speed The oil droplets are collected by the sump and sent to the sump box through the delivery pipeline.

The baffle is composed of a rotating shaft and a baffle surface, the rotating shaft and the baffle surface are of scroll structure, and the rotating shafts are respectively fixed on the four sides of the bottom of the smoke collecting hood.

The baffle surface is made of flexible material, and an oil-free film is attached on the surface.

The surface of the non-stick film attached to the baffle plate is also provided with an air guide groove.

The included angle between the air guiding groove and the rotating shaft is 10-25°.

The smoke gathering fan is a frequency conversion fan.

The telescopic air duct is divided into 3-4 sections.

The air outlet hole is a round hole.

The air outlet direction of the air outlet is inclined upward by 10-25°.

The liquid collecting tank is divided into four sections, which are respectively fixed on the four inner walls of the upper part of the smoke collecting hood, and the cutting surface is arc-shaped.

Beneficial effects: 1. Set four baffles under the fume collecting hood to limit the oil fume within a certain range, and prevent the oil fume from being diffused in the room by factors such as horizontal wind; the scroll-type baffle can be used according to the specific conditions of the oil fume. Flexibly control the size of the baffle plate, change the size of the oil fume converging chamber, and then adjust the power of the fan to save energy consumption of power equipment.

2. Use the non-stick film attached to the baffle to absorb solid particles and liquid droplets with larger particle sizes. When the film reaches a certain capacity, remove the old film and attach a new film to better protect the stove top and the cleanliness of the side walls.

3. Using four smoke-gathering fans, using the principle of tornado to generate gas vortex, due to the change of air pressure difference, it can better control the dirty air flow, and promote the dirty air flow to accelerate to the direction of the main exhaust fan and exhaust pipe, thereby reducing the main exhaust. The power of the gas fan can be used to reduce noise; the anti-side pressure ability of the gas vortex can control the smoke generated by the stove on the workbench, further reduce and improve the leakage of oily smoke, reduce the peculiar smell in the air, and increase Operator safety and comfort.

4. The surface of the oil-free film covered on the baffle is provided with an air guide groove to guide the direction of the airflow to a certain extent, stabilize the airflow and the generated eddy current, and improve the working efficiency of the equipment.

5. The length of the retractable air duct can be adjusted. With the frequency conversion fan used in the smoke gathering fan, the power of the smoke gathering fan can be flexibly adjusted according to the amount of oil fume. It can not only control the noise generated by the fan when it is working, but also save energy and protect the environment.

6. A certain amount of liquid substance is contained in the liquid collection box, and the liquid substance in the liquid collection box with a lower density than the dirt is used to form a liquid seal, which can effectively prevent the evaporation and diffusion of the dirt.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure;

Fig. 2 is a schematic structural diagram of the main exhaust system;

Fig. 3 is a side view of the device;

Fig. 4 is a schematic diagram of the structure of the telescopic air duct;

Fig. 5 is a schematic diagram of the structure of the baffle.

Reference signs: 1, smoke collecting hood, 2, exhaust pipe, 3, main exhaust fan, 4, smoke gathering fan, 5, retractable air duct, 6, baffle plate, 7, air outlet hole, 8, rotating shaft , 9, baffle surface, 10, liquid sump, 11, air guide groove.

detailed description

The embodiment of the utility model is specifically described below according to the accompanying drawings:

As shown in Figure 1, an anti-smoke diffusion fume exhaust device consists of a main exhaust system, an anti-smoke diffusion system and a liquid collection system.

The main exhaust system is composed of a smoke collection hood 1, a main exhaust fan 3 and an exhaust pipe 2, wherein the smoke collection hood 1 is divided into two parts, the bottom and the upper part, the bottom is a rectangular parallelepiped structure, and the upper part is a square truss structure. There is an oil fume passage through up and down, the main exhaust fan 3 is arranged on the top of the upper part of the smoke collection hood 1, and the exhaust pipe 2 is arranged on the upper end of the main exhaust fan 3 and is fixedly connected with the smoke collection hood 1.

The anti-smoke diffusion system includes baffles 6. There are four baffles 6, which are respectively arranged on the four sides of the bottom of the fume collecting hood 1, and together form a converging chamber for limiting the diffusion of oil fume. Baffle plate 6 is made up of rotating shaft 8 and baffle plate surface 9, and rotating shaft 8 and baffle plate surface 9 are scroll structure, and rotating shaft 8 is respectively fixed on four sides of smoke collecting hood 1 bottom. The baffle plate surface 9 is made of a flexible material, and an oil-free film is attached on the surface. The surface of the oil-free film is also provided with an air guide groove 11. The angle between the air guide groove 11 and the rotating shaft 8 is preferably 15°.

The anti-smoke diffusion system also includes a smoke gathering fan 4 and a telescopic air duct 5. The telescopic air duct 5 is a multi-section structure, preferably 3 sections, and the diameters of each section decrease sequentially from top to bottom, and are sequentially connected by sliding , there are four telescopic air ducts 5, which are respectively arranged at the four corners of the bottom of the smoke collecting hood 1 and are located in the gap between two adjacent baffles 6, and a tube wall of the telescopic air duct 5 is opened The wind holes 7 are listed, preferably circular holes, and the air outlet directions of the four wind holes 7 listed on the four telescopic air ducts 5 are along the same rotation direction and inclined upward, and the angle of inclination is preferably 15°.

The smoke-gathering fan 4 is arranged on the upper end of the telescopic air duct 5, and the wind of the smoke-gathering fan 4 is blown downward to the telescopic air duct 5, and then blows out from the four columns of air holes 7 respectively to gather the oil fume in the gathering chamber. Gas, to prevent oil fume from diffusing out from the gap between the baffles 6, while forming a gas vortex flowing to the main exhaust fan. The smoke gathering fan 4 is a variable frequency fan, and the power can be flexibly adjusted according to the actual oil fume situation.

The liquid collection system is composed of a liquid collection tank 10 and a liquid collection box, wherein the liquid collection tank 10 is arranged on the inner wall of the upper part of the smoke collection hood 1, and is connected with the liquid collection box through a special delivery pipeline, and the main exhaust fan 3 is at a high speed The oil droplets thrown off during the rotation are collected by the sump 10 and sent to the sump box through the delivery pipeline. The liquid collecting tank 10 is divided into four sections, which are respectively fixed on the four inner walls of the upper part of the smoke collecting hood 1, and the cutting surface is arc-shaped.

During use, the size of the baffle surface 9 is adjusted through the rotating shaft 8 according to the specific situation of the size of the oil fume, and then the size of the converging cavity is adjusted. Then according to the size of the converging cavity, the power of the smoke-gathering fan 4 and the length of the telescopic air duct 5 can be adjusted, and the airflow blown out by the four telescopic air ducts 5 along the same rotation direction forms a gas vortex in the converging cavity to gather oil. The flue gas is sent to the exhaust pipe 2. Finally, the power of the main exhaust fan 3 is adjusted according to the strength of the gas vortex, so as to achieve the purpose of saving energy and ensuring smoke exhaust effect.

A certain amount of liquid substances with a lower density than the dirt, such as detergent solution, can be pre-filled in the liquid collection box to form a liquid seal, effectively preventing the evaporation and diffusion of the dirt. After using it for a period of time, pour out the oil fume waste liquid that will remain in the liquid collection box and clean the liquid collection box, and then you can continue to use it.

When there are many droplets or impurities collected on the baffle plate 6, the oil-free film can be removed for cleaning or replacement, so as to maintain the working efficiency of the oil fume exhaust device.

Claims (10)

1. An oil fume exhaust device for preventing smoke diffusion, consisting of a main exhaust system, an anti-smoke diffusion system and a liquid collection system, characterized in that: The main exhaust system consists of a smoke collection hood (1), a main exhaust fan (3) and an exhaust pipe (2), wherein the smoke collection hood (1) is divided into two parts, the bottom and the upper part, and the bottom is a cuboid structure. The upper part is a four-sided platform structure, and there are oil fume passages through up and down. The main exhaust fan (3) is set on the top of the upper part of the smoke collecting hood (1), and the exhaust pipe (2) is set on the main exhaust fan (3). The upper end is fixedly connected with the fume collecting hood (1); The anti-smoke diffusion system includes baffles (6), and there are four baffles (6), which are respectively arranged on the four sides of the bottom of the fume collecting hood (1), and together form a converging cavity for limiting the diffusion of oil fume; The anti-smoke diffusion system also includes a smoke gathering fan (4) and a telescopic air duct (5). The telescopic air duct (5) is a multi-section structure, and the diameter of each section decreases from top to bottom, and slides sequentially Connected, there are four telescopic air ducts (5), which are respectively arranged at the four corners of the bottom of the smoke collecting hood (1) and located in the gap between two adjacent baffles (6). (5) There is a list of air holes (7) on the pipe wall, and the air outlet direction of the four air holes (7) on the four retractable air ducts (5) is along the same rotation direction and inclined upward; The smoke gathering fan (4) is arranged on the upper end of the telescopic air duct (5), and the wind from the smoke gathering fan (4) is blown downward to the telescopic duct (5), and the air holes (7) are arranged from four sides respectively. Blow out from the center to gather the oily fume in the converging cavity to prevent the oily fume from diffusing out from the gap between the baffles (6) and at the same time form a gas vortex flowing to the main exhaust fan; The liquid collection system consists of a liquid collection tank (10) and a liquid collection box, wherein the liquid collection tank (10) is set on the inner wall of the upper part of the smoke collection hood (1), and is connected with the liquid collection box through a special delivery pipeline. The oil droplets thrown out by the main exhaust fan (3) when rotating at high speed are collected by the liquid collection tank (10) and sent to the liquid collection box through the delivery pipeline. 2. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the baffle (6) is composed of a rotating shaft (8) and a baffle surface (9), and the rotating shaft (8) and the baffle The plate surface (9) is a scroll structure, and the rotating shafts (8) are respectively fixed on the four sides of the bottom of the smoke collecting hood (1). 3. The oil fume exhaust device for preventing smoke diffusion according to claim 2, characterized in that: the baffle surface (9) is made of flexible material, and an oil-free film is attached on the surface. 4. The oil fume exhaust device for preventing smoke diffusion according to claim 3, characterized in that: the surface of the non-stick oil film attached to the baffle surface (9) is also provided with an air guide groove (11) . 5 . The oil fume exhaust device for preventing smoke diffusion according to claim 4 , characterized in that: the included angle between the air guide groove ( 11 ) and the rotating shaft ( 8 ) is 10-25°. 6. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the smoke gathering fan (4) is a frequency conversion fan. 7. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the telescopic air duct (5) is divided into 3-4 sections. 8. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the air outlet hole (7) is a round hole. 9. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the air outlet direction of the air outlet hole (7) is inclined upward by 10-25°. 10. The oil fume exhaust device for preventing smoke diffusion according to claim 1, characterized in that: the liquid collecting tank (10) is divided into four sections, which are respectively fixed on the four inner walls of the upper part of the smoke collecting hood (1) , and the section is arc-shaped.