CN2250492Y

CN2250492Y - Cooking fume exhauster

Info

Publication number: CN2250492Y
Application number: CN 96207050
Authority: CN
Inventors: 傅恩松
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-29
Filing date: 1996-03-29
Publication date: 1997-03-26
Anticipated expiration: 2006-03-29

Abstract

The utility model relates to a fume exhauster. The utility model is characterized in that a fume hood part is provided with a multichannel falling air channel 29 composed of a plurality of dissepimentariums 28; the multichannel falling air channel 29 slopedly covers the top part of a cooker; the output end of the multichannel falling air channel 29 is communicated with an anechoic chamber which is provided with a sound screen 16 and a wind guiding board 17; a second falling air channel 18 is composed of the sound screen 16 and the wind guiding board 17. The utility model originally creates the adoptation the function of airstream flow field of splashing and purifying oil, burning extinction, pressurizing, reducing temperature in kitchens, and exchange of fresh air, etc. The integral structure is made into the arrangement and combination of reducing resistance and noise elimination, obtaining the fume removing effect with low noise, high voltage, and large air volume of a fume exhauster.

Description

Smoke exhaust ventilator

The utility model belongs to household cookware, is specifically related to a kind of smoke exhaust ventilator.

Existing smoke exhaust ventilator, though the oil smoke that has produced when having solved the burner burning to a certain extent is to the pollution in kitchen, but these previous smoke exhaust ventilators, when design of suction and purification in to(for) oil smoke gas are for the distribution of air velocity distribution in the lampblack absorber and sound field and former for interlock power--the change application of windmill, do not do deep exploration, therefore, noise is big, the capacity deficiency, grease is muddy to pollute the fire-proof function deficiency.

The purpose of this utility model is to provide the smoke exhaust ventilator that a kind of fire protecting performance is good, noise is big, rate of air sucked in required is big, environmental pollution is little.

Smoke exhaust ventilator of the present utility model is characterized in that being provided with the multiple tracks tenesmus air channel that the multi-disc dissepiment is formed in petticoat pipe part (suction casing), tilt to be encompassed in the cooker top, and its port of export communicates with anechoic room.

In above-mentioned anechoic room, be provided with sound insulationg board and guide hole plate, between this two plate, constitute second tenesmus air channel, be provided with the flexible cylindrical void and the set screw of the expansion strip height that is used to regulate flexible back of the body both sides at anechoic room two side bottoms.

The port of export in above-mentioned second tenesmus air channel communicates with the air entry that adds grade windmill, adds the air-breathing rotor of grade windmill and get the minimum of a value diameter under the setting air quantity, and air-breathing rotor top is provided with and adds a grade rotor, adds grade rotor at the constant condition inferior segment maximum gauge of peripheral speed.

(being the discharge section of the air velocity distribution of smoke exhaust ventilator) is provided with an air-breathing pore on the blast pipe of the above-mentioned rotary diffusing device (shell that adds grade rotor) that adds grade windmill, feeds in the blast pipe outside blast pipe.

Functions such as the utility model original creation uses that air velocity distribution gets rid of oil purification, puts out combustion, supercharging, reduction kitchen temperature and fresh air exchange, according to acoustics and aerodynamic principle overall structure is done to fall that the arrangement of resistance noises elimination and low noise, high pressure and big air quantity that combination obtains smoke exhaust ventilator purify except that the oil gas effect again, have good practical value.

Below in conjunction with accompanying drawing smoke exhaust ventilator of the present utility model is described further:

Fig. 1 is the structural representation of the utility model smoke exhaust ventilator.

Fig. 2 is the top view of the utility model smoke exhaust ventilator.

Fig. 3 is the front view of the utility model smoke exhaust ventilator.

Fig. 4 is the side cutaway view of the utility model smoke exhaust ventilator.

Fig. 5 is the windmill generalized section of the utility model smoke exhaust ventilator.

Fig. 6 is the structural representation of the rotary diffusing device of the utility model smoke exhaust ventilator.

Fig. 7 is the anechoic room perspective view of the utility model smoke exhaust ventilator.

Fig. 8 is the anechoic room shell accessory schematic diagram of the utility model smoke exhaust ventilator.

Fig. 9 is the flexible back structure schematic diagram of the utility model smoke exhaust ventilator.

Figure 10 is the petticoat pipe perspective view of the utility model smoke exhaust ventilator.

Figure 11 is the petticoat pipe shell accessory schematic diagram and the depleted schematic diagram of acoustic energy of the utility model smoke exhaust ventilator.

Figure 12 is the petticoat pipe side plate schematic diagram of the utility model smoke exhaust ventilator.

Figure 13 is the petticoat pipe side plate and the arc top combination schematic diagram of the utility model smoke exhaust ventilator.

Figure 14 is the air velocity distribution schematic diagram of the utility model smoke exhaust ventilator.

As shown in Figure 1, smoke exhaust ventilator of the present utility model, comprise windmill, anechoic room, the flexible back of the body and petticoat pipe, wherein windmill is by the centrifugal type wind wheel rotor of two diameters that vary in size, be that air-breathing rotor 3 is that the center is vertical up and down upright (referring to Fig. 5) with adding grade rotor 4 with motor 1, other has motor fixedly foot rest 2, rotary diffusing device 5 (referring to Fig. 6), blast pipe 35 and air-breathing pore 36.

Side is seen the anechoic room that is trapezoidal as shown in Figure 7, its casing part be included in its both sides trapezoidal plate 6, add that grade rotor air inlet 8 and dividing plate 7 thereof, reinforcement hang hole 9, trapezoidal backplate 10, the trapezoidal back side hang hole 11, first oil groove, 12 oil leaking holes.In anechoic room, be provided with air-breathing rotor air inlet 15 and dividing plate 14 sound insulationg board wind deflectors 17 second tenesmus air channels 18 thereof.

As shown in Figure 8, on the gangboard of both sides, there is linking to locate with screw 20 blind rivet holes, 21 oil leaking holes 41 and sump oil cup skeleton frames 45 with screw hole 19.

As shown in Figure 9, the flexible knapsack flexible cylindrical void 25 of drawing together the inside 24 liang of side edgefolds of flanging in oil groove 23 both sides that 22 back of the body ends of the back side of the flexible back of the body are converted into adds a grade rotor.

As shown in figure 10, described petticoat pipe, side sees and is arc addendum cone shape shape, and oil groove 27, suction inlet scale wind deflector 28, multiple tracks tenesmus air channel 29 (all air channels are the suction inlet of smoke exhaust ventilator), the flanging 30 (see figure 8) hypotenuse oil grooves 31 that comprise petticoat pipe arc top 26, arc top are connected the vertebra shape plate (seeing Figure 11) with screw hole 32 (see Fig. 8 19) petticoat pipe backplate 33 and both sides.

Showing signs of anger and anabolic process of four main accessories of creation:

1. the above-mentioned main accessory of the utility model smoke exhaust ventilator respectively is the individuality of independent completion, both can show signs of anger separately on demand, for being combined into multicoloured product, the viewability of active product.

--characteristic one.

2. combination of the present utility model is that anechoic room (as shown in Figure 7) is the center, head gets and adds a grade rotor air inlet dividing plate 7, motor 1 is placed on adds grade central authorities of rotor air inlet 8, and with motor fixedly foot rest 2 be fixed on and add on grade dividing plate of rotor air inlet, refill air-breathing rotor 3 and add grade rotor 4 and rotary diffusing device 5, borrow the rotary diffusing reinforcement to add grade weight that rotor air inlet dividing plate bears motor, then with this dividing plate Mi Gai at trapezoidal high face of anechoic room and upper bottom surface, and fix with screw, in order to repair demolition in the future;

3. the hypotenuse that the back side 33 of petticoat pipe and anechoic room is trapezoidal connects airtight, and upper and lower side is connected fixing with screw at the screw hole of setting 32,19 and (sees Fig. 1, Fig. 4) in order to loading and unloading;

4. the flexible cylindrical void 25 of carrying on the back two side edgefolds that will stretch is at last located (seeing Fig. 1,3,4) at the set screw 20 of anechoic room both sides.

Air velocity distribution suction casing of the present utility model flow field, power section flow field and discharge section flow field:

1. suction casing flow field:

The folded cooker top (seeing Fig. 1,3,14) that is encompassed in of 29 whole face tilt squamas, multiple tracks tenesmus air channel that the suction inlet of smoke exhaust ventilator is made up of multistage dissepiment 28.When windmill drives, the oil gas that culinary art is given birth to (as Figure 14 37) contained totally more than the air channel (being suction inlet 29) that drops, road suck---characteristic two, be the rapid movement that drops (as Figure 14 38).When oil smoke gas leaves multiple tracks tenesmus air channel and enters the buffering area of big volume (as Figure 14 39), flow velocity slows down, elaioleucite in oil smoke gas separated get rid of drop on the trapezoidal most advanced and sophisticated bottom of anechoic room (as Figure 14 40), oil smoke gas is then continuous toward rising, and enters the function---characteristic four that the second tenesmus air channel 18 gets rid of the elaioleucite purification once more.Greasy dirt is by oil leaking hole 41 drippage bottom 40---characteristics three, this the two tenesmus tenesmus air channel makes air-flow do tenesmus fast flowing that aptitude to burn is runed counter to and air-flow is the reducing air of high humidity because of flame must make progress for the phenomenon of (see Figure 14 38), put out the function of firing fire prevention so have again.--characteristic five.

2. power section flow field:

Above-mentioned oil smoke gas is continuous to be emitted in the suction ventilating fan 42 through air-breathing rotor 3 suctions and approximate freely the blowing of work, is promptly added 4 suctions of grade rotor wink and is emitted on the interior function that realizes supercharging and exhaust of rotary diffusing device.

3. discharge section flow field:

Do in the discharging when adding grade rotor, borrow the interior low pressure phenomenon of the pipe that flow velocity caused of discharging in the blast pipe 35, kitchen hot gas outside the air intake duct on blast pipe (as Figure 14 43) mix with the merit of doing discharging with exhaust in the blast pipe, with the temperature in the reduction kitchen and exchanged fresh air.--characteristic six.

In addition, arc top inwall adheres to because of oil gas in the petticoat pipe district, and greasy dirt flows into oil duct 31 inflows first oil groove 12 on arc top along the gradient on arc top, and sump oil splashes into sump oil cup 46 external on the sump oil cup skeleton frame 45 by oil leaking hole 13 again, and the sump oil cup can be abandoned at any time and change.Moreover the greasy dirt that adheres on each wind-guiding dissepiment of suction inlet each along the wind-guiding dissepiment glide or drop in regular turn below on the wind-guiding dissepiment (as Figure 14 44), import first oil groove 12 to nethermost wind-guiding dissepiment, splash into the sump oil cup through oil leaking hole 13.The greasy dirt that can be known this creation petticoat pipe inwall by the foregoing description drips, and can not resemble previous creation has puzzlement on the cooker of being dropped in, is the function that previous creation had not been had.--characteristic seven.

The in addition flexible back of the body can be according to the height distance location of smoke exhaust ventilator and table, also can prevent that at the table wall tongues of fire from causing harm and be easy to cleaning maintenance work with the attached work of deduction and exemption suction casing flow field oil gas.

Windmill of the present utility model and integrally-built arrangement and combination.

Windmill is to be noise source, existing small-sized household smoke exhaust ventilator, and for reducing inspiratory resistance, windmill is set directly at the suction side; And large-scale person is because of the relation of windmill volume and weight, generally it is exposed to the open air outdoor, more than both noises obviously all off guard can depleted important document, outside the direct conveyer of noise, it is inevitable disturbing the people, the utility model utilizes the structure important document of air velocity distribution to make obstruct and the interference effect that suitable arrangement makes it to be made for simultaneously noise elimination according to acoustics and aerodynamic principle.Be described further below in conjunction with embodiment:

Smoke exhaust ventilator, the utility model be according to aerodynamic principle, and its windmill is taked freely to blow and can be obtained maximal inspiratory capacity and wind wheel (being rotor) and add the characteristic that level can obtain high blast etc. and integrate; For this reason, it is suction ventilating fan 42 (referring to according to Fig. 7) to adding grade 7 big volumes of rotor air inlet dividing plate that principle (smoke exhaust ventilator) is established self-priming air rotor import dividing plate 14, and in case, do not establish the snail tongue, when air-breathing rotor 3 drives the do discharging, borrow the space of the big volume of suction ventilating fan and add the 4 air-breathing resistance effects of falling that form negative pressure of grade rotor, the discharging of air-breathing rotor is operated be similar to freely to blow and obtain the inspiratory capacity of maximum.--characteristic eight.

Therefore, setting under the condition of air quantity, the peripheral speed that same rotor is done freely to blow is less than making the non-peripheral speed that freely blows, and the air-breathing rotor of the utility model foundation of getting minimum diameter just obtains the effect of noise reduction in view of the above.(b) resistance in the life of air flow stream place is the main loss of offsetting windmill work done effect, be the windmill work done effect that obtains being scheduled to, and setting under the constant condition of peripheral speed, the utility model is provided with and adds a grade rotor, get rotor and add the characteristic that level can obtain supercharging, in order to loss of offsetting resistance that give birth in the flow field or the blast that more increases discharging, therefore, grade rotor that adds of the present utility model is got maximum gauge according to entity space.Air-breathing root diameter of the present utility model is less than adding the invention that adds grade windmill that grade root diameter combines can get noise reduction, high pressure, big air quantity under the constant condition of peripheral speed optimum efficiency.--characteristic nine.

Intercept and interfere noise-cancelling theory according to acoustics, the arrangement of windmill and air velocity distribution structure important document and make up as follows:

Make two windmills vertical upright folded mutually, the below is air-breathing windmill (promptly comprising air-breathing rotor 3 and suction ventilating fan 42), the top is pressurization windmill (promptly comprise and add grade rotor 4 and rotary diffusing device 5), the exhaust outlet of air-breathing windmill is the air inlet 8 of pressurization windmill, so the noise that two windmills are given birth to transmits and be subjected to the reverberation effect of the interference of the other side's rotor and bellows that the function of depleted noise is arranged with discharge directions through this blow vent mutually.The interior noise of pressurization windmill transmits and depletion in blast pipe to doing to point to exhaust is anti-, noise in the air-breathing windmill then Partial Inverse gas direction of advancing imports buffering area 39 into and several times reflect and be subjected to its directive property of spreading of interference of reverse air inlet in buffering area by second the drop obstruct in air channel 18 and the interference effect from air-breathing windmill (being air-breathing rotor air inlet) 15 that enter the mouth, noise can be a large amount of depleted, and eliminating the noise through the interference once more in multiple tracks tenesmus air channel 29 again just can spread out of outside the machine then.Therefore, whole machine body is just like the combination of a silencer box.--characteristic ten.

Claims

1. a smoke exhaust ventilator is characterized in that being provided with the multiple tracks tenesmus air channel 29 that multi-disc dissepiment 28 is formed in petticoat pipe part (suction casing), tilt to contain poultry above cooker, and its port of export communicates with anechoic room.

2. smoke exhaust ventilator as claimed in claim 1, it is characterized in that in above-mentioned anechoic room, being provided with sound insulationg board 16 and wind deflector 17, between this two plate, constitute second tenesmus air channel 18, be provided with the flexible cylindrical void 19 and the set screw 20 of the expansion strip height that is used to regulate flexible back of the body both sides at anechoic room two side bottoms.

3. smoke exhaust ventilator as claimed in claim 1 or 2, the port of export that it is characterized in that above-mentioned second tenesmus air channel 18 communicates with the air entry that adds grade windmill, add the air-breathing rotor 3 of grade windmill and under the setting air quantity, get the minimum of a value diameter, air-breathing rotor 3 tops are provided with and add grade rotor 4, add grade rotor 4 at the constant condition inferior segment maximum gauge of peripheral speed.

4. smoke exhaust ventilator as claimed in claim 1 or 2 is characterized in that the above-mentioned blast pipe that adds the rotary diffusing device 5 of grade windmill is provided with an air-breathing pore, feeds in the blast pipe outside blast pipe.

5. smoke exhaust ventilator as claimed in claim 3 is characterized in that the above-mentioned blast pipe that adds the rotary diffusing device 5 of grade windmill is provided with an air-breathing pore.