CN2566147Y

CN2566147Y - Air curtain type oil-fume exhauster

Info

Publication number: CN2566147Y
Application number: CN 02217980
Authority: CN
Inventors: 严振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-06
Filing date: 2002-06-06
Publication date: 2003-08-13
Anticipated expiration: 2012-06-06

Abstract

The utility model relates to a wind curtain type fume exhauster, which comprises a fume exhauster and a wind curtain generator, wherein, the wind curtain generator is provided with an electric blower, a circuit control system and at least one annular wind curtain pipe. After wind blown from the blower enters the annular wind curtain pipe through a wind guide soft pipe, the wind is blown out upward of a round of annular wind outlets arranged at the annular surface at the upper end of the annular wind curtain pipe. A round of wind curtain is formed, and therefore, cooking waste gas lifts and directly reaches a wind suction hood and can not disperse laterally and the exhaust efficiency is high. The bottom part of the annular wind curtain pipe is provided with a telescopic support rod, an annular wind curtain pipe which can be rotationally close to a wall can also be manufactured, and the wind suction hood of the fume exhauster is a two-layer wind suction hood.

Description

The wind curtain type smoke exhaust ventilator device

(one) technical field

The utility model relates to a kind of wind curtain type smoke exhaust ventilator device, and this is a kind of cooking apparatus that is used to remove cooking waste gas such as oil gas, flue gas, water vapour.

(two) background technology

For avoiding cooking exhaust emission indoor environments such as oil gas, flue gas, water vapour, in the kitchen fume exhaust device is housed all generally at present.The fume exhaust device mainly is made up of electric exhaust fan, suspended hood and circuit control system, and the negative pressure that produces around the air entry when turning round by electric exhaust fan is absorbed the hot cooking waste gas of the upwards ascension that produces in the cooker.Yet, electric exhaust fan sharply descends along with the increase of distance to the suction of gas, though negative pressure is bigger around the air entry, obviously weakens at the cooker place suction away from air entry, when in the environment side direction wind being arranged slightly, cooking waste gas is dispelled and fill the air, pollute to indoor with regard to being easy to.

In addition, the quantitative changeization of the cooking waste gas that cooker produces in the cooking process is bigger, for example ought fry, fry, when exploding article, the cooking waste gas that can produce a large amount of rapid expansion is at short notice not only measured greatly, and the area of expansion in the horizontal direction is also bigger, in its ascension process as can not in time be sucked away, then the part of its periphery can be walked around suspended hood and disperse, some present fume exhaust devices adopt the measure of the power of electric motor that strengthens electric exhaust fan in the hope of making moderate progress, but make so again and steaming at ordinary times, boil, the wasting phenomenon that presents energy when burning moisture article, ought fry in addition, fry, when exploding article, the oil droplet that spills also can be scalded the operator.

(three) summary of the invention

The purpose of this utility model provides a kind of wind curtain type smoke exhaust ventilator device, to solve cooking waste gas is easy to generate the side direction disperse in the ascension process that makes progress problem, improves suction efficient, avoids the pollution of cooking waste gas to indoor environment.

This wind curtain type smoke exhaust ventilator device comprises one by suspended hood, the fume exhaust device that electric exhaust fan and circuit control system are formed, comprise an air curtain generator in addition, this air curtain generator is provided with electric blower and circuit control system and at least one annular air curtain pipe, have the annular air outlet of a circle at the upper end of annular air curtain pipe anchor ring, annular air curtain pipe is connected with electric blower by the wind-guiding flexible pipe by input valve coupled and that communicate, start air blast when annular air curtain pipe air blast, the air-flow that upwards blows out from annular air outlet promptly forms a circle air curtain, it is equivalent to a circle gas shield, stop that the cooking exhaust gas side makes its upwards ascension always to disperse, in the effective range of final arrival fume exhaust device, all absorbed by exhaust blower.For the kitchen range that contain two duration and degree of heatings, the air curtain generator can be provided with two annular air curtain pipes simultaneously.The utility model is connected with a butterfly valve respectively between two annular air curtain Guan Yuyi guide ducts and communicates under the situation that is provided with two annular air curtain pipes.The support bar that the bottom of said annular air curtain pipe also is provided with several scalable change length is used to regulate the height of annular air curtain pipe, makes it to adapt with the height of cooker.

The another kind of version of the suspended hood of fume exhaust device of the present utility model is to be designed to the two-layer equation suspended hood, mezzanine space between suspended hood inside and outside two-layer forms air intake passage, the inside and outside two-layer following interruption-forming one circle air entry of suspended hood, bottom surface at suspended hood internal layer end face is provided with aggregation from the catchment cup that is contained in the electric exhaust fan outflow liquid on the outer end face of suspended hood, the negative pressuren zone of the maximum that the suspended hood of this structure produces electric exhaust fan has extended to the inside and outside two-layer end opening of suspended hood, forms a negative inspiratory pressure circle; The butterfly valve of adjustable opening is equipped with at the air entry place of two-layer equation suspended hood internal layer end face, and its effect is to prevent drop such as condensation of oil, water on the bottom surface at the top of suspended hood internal layer.

In the utility model, be provided with grading ring in the annular air curtain pipe of air curtain generator, a circle limit of grading ring links to each other with annular air curtain inside pipe wall, between another circle limit of grading ring and the annular air curtain inside pipe wall ring gap is arranged, it can distribute the air-flow that blasts in the annular air curtain pipe more equably, thereby makes in the pipe isostasy everywhere.

In the utility model, the inboard of annular air curtain pipe is made for vertical wall, its top also becomes the inner ring of air outlet, the suitable for reading of it bends inwards, is the inboard that oil baffle that unit circle that Z-shaped material constitutes is formed is put what annular air curtain pipe by several of mutual fit with cross sectional shape, withstand on the medial surface of annular air curtain pipe the outer ring of the bottom of the unit circle of outmost turns, withstand on the medial surface of the unit circle outside being enclosed within it successively the outer ring of the bottom of other unit circle, can as required each unit circle be pulled up to the height that needs during use, can block the oil droplet that spills in the certain limit, connecting a cross sectional shape in the bottom of the vertical wall of the inboard of annular air curtain pipe is L shaped brine collecting ring, is used for the drop that productive set drops down from oil baffle.

The air curtain device also can be designed to rotatable upright by the idle form of wall, its structure is as follows: annular air curtain pipe is fixedly connected with rotatable guide duct and communicate, the two ends of said rotatable guide duct are leaned on mutually with the fixing two ends of guide duct respectively, each that lean on is provided with external screw thread to one in the pipe end mutually, be with tapped box nut and sealing ring on another, annular air curtain pipe just can be realized the horizontal operation state with the rotation of rotatable guide duct or vertically by the change in location between the idle state of wall, and the input valve links to each other with fixing guide duct.For the situation that is provided with two annular air curtain pipes simultaneously, link to each other with butterfly valve respectively between two annular air curtain pipes and the rotatable guide duct and communicate.

When annular air curtain pipe of the present utility model is installed, annular air curtain pipe is placed horizontally on the kitchen range top, it is good making cooker be positioned at the central authorities of annular air curtain pipe and be adjusted to last open height with cooker the height of the foundation ring of annular air curtain pipe close.During use, open air blast, the circle air curtain that annular air curtain pipe promptly upwards blows out sealing ringwise from annular air outlet is trapped among around the cooking waste gas of ascension.

In sum, the utility model wind curtain type smoke exhaust ventilator device has been set up the air curtain generator on the basis of fume exhaust device, the tangible suspended hood in the invisible air curtain that is produced and top combines and has formed a closed space, the upwards hot cooking waste gas of ascension of overflowing in the cooker is shrouded in this closed space and is raised, then enter in the effective range of fume exhaust device and be sucked away, strengthened the anti-crosswind ability of cooking waste gas, do not hinder the user to carry out the cooking operation again, the two-layer equation suspended hood further improves smoking gas efficient, even the sharp increase of moment cooking exhausted air quantity can not overflowed outside the air curtain yet, but in the time thereafter, taken away gradually, therefore the choosing of exhaust air rate of electric exhaust fan can mainly be considered by the mean value of cooking waste gas, also can reduce requirement to power of electric motor, reach energy-conservation effect, the oil droplet that the setting of oil baffle can make the operator do not spilt is scalded.

(four) description of drawings

Fig. 1 is the example structure schematic diagram of wind curtain type smoke exhaust ventilator device of the present utility model, also shows the relative position of cooker and annular air curtain pipe.

Fig. 2 is the structural representation of butterfly valve among Fig. 1.

Fig. 3 and Fig. 4 represent the two kind set-up modes of grading ring in annular air curtain pipe respectively.

Fig. 5 and Fig. 6 represent to be provided with two kinds of embodiments of the annular air curtain pipe of telescopic support bar respectively.

Annexation when Fig. 7 represents to contain two annular air curtain pipes.Fig. 8 is the A-A cutaway view of Fig. 7.

Fig. 9 is the rotatable annexation schematic diagram that leans on the annular air curtain pipe of wall.Figure 10 and Figure 11 are respectively C-C and the D-D cutaway views of Fig. 9.

Figure 12 is when containing two annular air curtain pipes, the rotatable annexation schematic diagram by wall construction of annular air curtain pipe; Figure 13 is the E-E cutaway view of Figure 12.

Figure 14 contains the structural representation that two electric exhaust fans contain the fume exhaust device of two double-deck suspended hoods formations simultaneously.

(five) specific embodiment

Below in conjunction with Fig. 1～Figure 14 each embodiment of the present utility model is described.

Fig. 1 embodiment represents that this wind curtain type smoke exhaust ventilator device is made up of fume exhaust device 1 and air curtain generator 2.Expression fume exhaust device 1 contains electric exhaust fan 11, circuit control system 12, suspended hood 10 and liquid collecting cup 16 among the figure; In this example, suspended hood 10 adopts by outer 101, the double-decker that internal layer 102 is formed, its mezzanine space 13 is as air intake passage, the inside and outside two-layer following interruption-forming one circle air entry 14 of suspended hood, most cooking waste gas sucks thus, the cooking waste gas of remainder is inhaled into by the butterfly valve 17 (structure is seen Fig. 2) of the regulated aperture at air entry 105 places on the end face that is located at suspended hood internal layer 102, arrives the catchment cup 16 that is arranged in internal layer 102 end face bottom surfaces by the drop that flows out in the electric exhaust fan 11 that is contained on outer 101 end faces of suspended hood by drain pipe 103.Air curtain generator 2 is provided with electric blower 21, circuit control system 20, annular air curtain pipe 24, the upper ring surface of annular air curtain pipe has the annular air outlet 23 of a circle, and annular air curtain pipe 24 is connected with electric blower 21 by wind-guiding flexible pipe 3 by input valve 25 coupled and that communicate.Air blast 21 and circuit control system 20 can be installed on the fume exhaust device 1, also can install separately.The bottom of annular air curtain pipe 24 is provided with several support bars 5 of telescopic adjustment length up and down, it is by pipe fitting 51,52 pivot bush units are used to regulate the height of annular air curtain pipe 24, make it to adapt with the height of cooker 8, and by bolt 53 lockings, the bottom of support bar 5 is placed on the face of kitchen range 4: in this example, when frying for avoiding frying in shallow oil in the cooker oil droplet spatter outward and hurt sb.'s feelings, the inboard of annular air curtain pipe 24 is made for vertical wall, its top also becomes the inner ring of air outlet 23, the suitable for reading of this inner ring bends inwards, one is the inboard that oil baffle 22 that unit circle that Z-shaped material constitutes is formed is put what annular air curtain pipe 24 by several of mutual fit with cross sectional shape, withstand on the medial surface of the vertical wall of air curtain pipe the outer ring of the bottom of the unit circle of outmost turns, withstand on the medial surface of the unit circle outside being enclosed within it successively the outer ring of the bottom of other unit circle, the top of the unit circle of inner ring is provided with handle 48, oil baffle 22 is moved to the height that needs, can block the oil droplet that spills within the specific limits, connecting a cross sectional shape in the bottom of the vertical wall of the inboard of annular air curtain pipe 24 is L shaped brine collecting ring 26.At ordinary times steam, when boiling, burning moisture article, the general unlatching suction flue gas device 1 that only needs, and when fry, fry, during fried article, then open electric blower 21 simultaneously, air blast constantly upwards blows out to 24 air-supplies of annular air curtain pipe and by annular air outlet 23 and forms a circle air curtain, the cooking waste gas that produces in the cooker 4 shrouded in the air curtain barrier on ascension directly arrive suspended hood and absorbed.

Fig. 2 is the structure chart of butterfly valve 17 that is loaded on the regulated aperture at air entry 105 places on the end face of suspended hood internal layer 102.Have several valve openings 172,173 among the figure on valve seat plate 170, the rotary valve plate 171, rotary handle 174 makes the rotary valve plate rotation as required, can change the butterfly valve opening.

Fig. 3 and Fig. 4 represent grading ring 27 set-up modes in the annular air curtain pipe 24.Fig. 3 is from the annular air curtain pipe 24 of bottom air intake, the anchor ring horizontally set of grading ring 27, and the air intake of below and grading ring 27 collide the back and distribute along hoop, walk around grading ring again, are equal pressure gas stream along the direction of arrow and blow out from annular air outlet 23; Fig. 4 is that grading ring 27 vertically is provided with in the annular air curtain pipe 24 of side air admission.

Among Fig. 5 and Fig. 6, with the structure of the support bar 5 of the scalable change length of annular air curtain pipe 24 adapteds.Fig. 5 represents that annular air curtain pipe 24 is the example of side air admission, input valve 25 is located at the outside of annular air curtain pipe 24, each of support bar 5 established elastic spring 57 between the pipe fitting 54,55,56 of pivot bush unit successively, adjusting length can stretch, pipe fitting 56 can be imbedded on the face that is installed in kitchen range 4, and this installation method can drop to it on face of kitchen range 4 when not using annular air curtain pipe 24.Fig. 6 is the example from the downside air intake, one of them support bar 5 ' each successively the pipe fitting 54 of pivot bush unit ', 55 ', 56 ' between establish sealing ring 58, prevent that gas from leaking, input valve 25 links to each other with pipe fitting 56 ' lower end and communicates, pipe fitting 56,56 ' can imbed on the face that is installed in kitchen range 4, annular air curtain pipe 24 wind-guiding flexible pipe when upper and lower pulling can not be stowed.

Fig. 7, Fig. 8 be illustrated in be provided with two annular air curtain pipes 24,24 ' situation under, two annular air curtain pipes 24,24 ' with same guide duct 28 between respectively with butterfly valve 49 and 49 ' be connected and communicate, by selecting to enable one of them to opening and closing of butterfly valve or enabling two annular air curtain pipes simultaneously.In this example, two air curtain pipes fuse by connecting plate 63.

Fig. 9 represents the rotatable annexation schematic diagram that leans on the annular air curtain pipe of wall.Below in conjunction with Figure 10 and Figure 11 the annexation that this is routine is described.Have strip hole 613,614 on the level board 611 of fixing tripod 61 on the wall, the vertical panel 612, the fixedly guide duct 64 (seeing Fig. 9,10,11) that is connected to input valve 25 is a pipe that profile is a C shape, be connected with a flat board 72 below it, dull and stereotyped 72 place on the level board 611 of tripod 61, determine to lock with bolt 73, nut 74 behind the horizontal level; Determine behind the upright position of tripod 61 with bolt 73, nut 74 lockings; Annular air curtain pipe 24 and rotatable guide duct 65 are fixedly connected and communicate, the two ends of rotatable guide duct 65 are leaned on respectively mutually with the fixing two ends of guide duct 64, wherein fixedly the end of guide duct 64 is provided with external screw thread 67, the end of rotatable guide duct 65 is with tapped box nut 68 and sealing ring 69, by inside and outside spiral shell mosquito the two is linked into an integrated entity.Like this, annular air curtain pipe can be realized the horizontal operation state with the rotation of rotatable guide duct or vertically by the change in location between the idle state of wall.The air intake of wind-guiding flexible pipe 3 at first feeds fixedly guide duct 64, goes into annular air curtain pipe 24 behind rotatable guide duct 65.Set up L shaped liquid discharging tube 75 among Figure 10, it communicates (seeing Fig. 1) with brine collecting ring 26, when annular air curtain pipe 24 is upright, combines in oil, water in the brine collecting ring 26 and manages 75 thus and emit.On dull and stereotyped 72 bearing support 71 is set, is used to support annular air curtain pipe 24 and makes its stable level that is in.

Figure 12,13 expressions are provided with two annular air curtain pipes 24,24 ' time, and its rotation is by the annexation of wall construction.In the case fixedly the two ends of guide duct 64 connect respectively a rotatable guide duct 65,65 ', two annular air curtain pipes and each rotatable guide duct 65,65 ' with butterfly valve 49,49 ' link to each other and communicate.Select annular air curtain pipe to use by opening or closing of butterfly valve.Two effective connecting plates 63 of annular air curtain connect.

Figure 14 represent the fume exhaust device contain two electric exhaust fans 11,11 ' simultaneously contain two two-layer equation suspended hoods 10 and 10 ' structure, its use that can match with the air curtain generator that disposes two annular air curtain pipes.

Claims

1. wind curtain type smoke exhaust ventilator device, comprise one by suspended hood (10), the fume exhaust device (1) that electric exhaust fan (11) and circuit control system (12) are formed, it is characterized in that also comprising an air curtain generator (2), this air curtain generator is provided with electric blower (21) and circuit control system (20) and at least one annular air curtain pipe (24), the upper end anchor ring of this annular air curtain pipe has a circle annular air outlet (23), and air blast (21) is connected with the input valve (25) that is attached thereto and communicates on the annular air curtain pipe (24) by wind-guiding flexible pipe (3).

2. wind curtain type smoke exhaust ventilator device according to claim 1, it is characterized in that suspended hood [10] is the two-layer equation suspended hood, mezzanine space (13) between the internal layer of suspended hood (101), outer (102) forms air intake passage, the inside and outside two-layer following interruption-forming one circle air entry (14) of suspended hood, bottom surface at the end face of suspended hood internal layer is provided with catchment cup (16), and the air entry (105) of two-layer equation suspended hood inner top surface locates to be equipped with the butterfly valve (17) of adjustable opening.

3. wind curtain type smoke exhaust ventilator device according to claim 1 is characterized in that being provided with in the annular air curtain pipe (24) grading ring (27).

4. wind curtain type smoke exhaust ventilator device according to claim 1, it is characterized in that the inboard of annular air curtain pipe [24] is made for vertical wall, its top also becomes the inner ring of air outlet [23], the suitable for reading of inboard of annular air curtain pipe bends inwards, is the inboard that oil baffle [22] that unit circle that Z-shaped material constitutes is formed is put what annular air curtain pipe by several of mutual fit with cross sectional shape, withstand on the medial surface of the vertical wall of air curtain pipe the outer ring of the bottom of the unit circle of outmost turns, withstand on the medial surface of the unit circle outside being enclosed within it successively the outer ring of the bottom of other unit circle, and connecting a cross sectional shape in the bottom of the vertical wall of the inboard of annular air curtain pipe [24] is L shaped brine collecting ring [26].

5. wind curtain type smoke exhaust ventilator device according to claim 1, the bottom that it is characterized in that annular air curtain pipe (24) is provided with several support bars (5), support bar is formed by several telescopic pipe fitting pivot bush units, and each of support bar [5] established elastic spring [57] successively between the pipe fitting of pivot bush unit [54], [55], [56].

6. wind curtain type smoke exhaust ventilator device according to claim 5, it is characterized in that in the support bar (5) that annular air curtain pipe (24) is provided with a support bar 5 ' each establish sealing ring (58) successively between pipe fitting of pivot bush unit (54 '), (55 '), (56 '), input valve (25) links to each other with the lower end of pipe fitting (56 ') and communicates.

7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described wind curtain type smoke exhaust ventilator devices, it is characterized in that being provided with two annular air curtain pipes (24), (24 '), use butterfly valve (49), (49 ') to link to each other respectively between each annular air curtain pipe and the same guide duct (28) and communicate.

8. according to claim 1 or 2 or 3 or 4 described wind curtain type smoke exhaust ventilator devices, it is characterized in that annular air curtain pipe (24) is fixedly connected with rotatable guide duct (65) and communicate, said rotatable guide duct (65) two ends are leaned on mutually with the fixing two ends of guide duct (64) respectively, each that lean on is to there being one to be provided with external screw thread (67) in the pipe end mutually, be with tapped box nut (68) and sealing ring (69) on another, input valve (25) links to each other with fixing guide duct (64).

9. wind curtain type smoke exhaust ventilator device according to claim 8, it is characterized in that the air curtain generator is provided with two annular air curtain pipes (24), (24 '), they with rotatable guide duct (65), (65 ') between use butterfly valve (49), (49 ') to link to each other respectively and communicate.

10. wind curtain type smoke exhaust ventilator device according to claim 9 is characterized in that fume exhaust device (1) is provided with two electric exhaust fans (11), (11 ') and is provided with two two-layer equation suspended hoods (10), (10 ').