CN104990118A - Check valve and smoke exhauster - Google Patents
Check valve and smoke exhauster Download PDFInfo
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- CN104990118A CN104990118A CN201510483561.6A CN201510483561A CN104990118A CN 104990118 A CN104990118 A CN 104990118A CN 201510483561 A CN201510483561 A CN 201510483561A CN 104990118 A CN104990118 A CN 104990118A
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- muscle
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- flue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Combustion & Propulsion (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a check valve and a smoke exhauster. The check valve comprises a valve body. A flue is arranged in the valve body. The valve body is provided with a flue inlet and a flue outlet which are communicated with the flue. The end, close to the flue inlet, of the inner wall face of the flue is provided with vortex cutting ribs. The vortex cutting ribs are arranged on the check valve so as to cut large-size and high-energy vortexes formed by soot flowing out of a centrifugal fan of the smoke exhauster at high speed at the flue inlet of the check valve and a centrifugal fan volute tongue, so that the vortexes are dispersed into small vortexes, small in size and easy to dissipate, and the small vortexes are gradually dissipated when flowing in the flue. Accordingly, the problem of noise or vibration caused when vortexes have too high energy and too large size is avoided, and the smoke exhauster noise is reduced.
Description
Technical field
The present invention relates to kitchen utensils field, in particular to a kind of check-valves and the lampblack absorber with this check-valves.
Background technology
Along with national standard is received sternly to the management and control index that smoke exhaust ventilator runs noise further, market proposes runs noise improvement to smoke exhaust ventilator, to reduce the requirement of sound power value lifting sound quality, but, the design of current smoke exhaust ventilator check-valves is just considered in smoke pumping process, prevent flue gas from flowing backwards and seal degree mostly, to product noise reduction, the additional function aspects such as lifting sound quality were not paid attention to, especially for the spiral air draught type lampblack absorber circulated on the market at present, when flue gas arrives the junction of centrifugal blower and check-valves, because circulation area change can make flue gas at this place in vorticity flowing greatly, and bulky volution energy is high, not easily dissipate in flowing, thus easily cause smoke exhaust ventilator to produce larger noise, even there is the bad phenomenon such as flutter, it reduce the competitiveness of product in market.
Summary of the invention
In order to solve the problems of the technologies described above one of at least, it is simple that one object of the present invention is to provide a kind of structure, and effectively can reduce the check-valves of lampblack absorber noise.
Another object of the present invention is to provide a kind of lampblack absorber with above-mentioned check-valves.
For achieving the above object, the embodiment of first aspect present invention provides a kind of check-valves, for lampblack absorber, comprising: valve body, is provided with flue in described valve body, and described valve body offers the chimney intake and flue outlet that are communicated with described flue; Wherein, the internal face of described flue is provided with brokenly near one end of described chimney intake and revolves muscle.
The check-valves that the embodiment of first aspect present invention provides, muscle is revolved by arranging brokenly, cut with the large volume formed at the chimney intake place of its snail tongue and check-valves the oil smoke flowed out at a high speed from centrifugal blower, high-octane vortex, with the little vortex making it be separated into little, the easy dissipation of volume, and dissipate gradually in the process that this little vortex is flowed in flue, thus avoid the noise that causes because volution energy is excessive, volume is excessive or Flutter Problem, realize the noise reduction object to lampblack absorber.
Specifically, the chimney intake of the check-valves in this programme is connected with the air outlet of the centrifugal blower volute of lampblack absorber, oil smoke is after the centrifugal wind wheel of centrifugal blower throws away, spiral case along centrifugal blower does movement in a curve, when it moves to the junction of snail tongue and spiral case and check-valves, stop owing to being subject to snail tongue, and its flow section changes, make flue gas large near the chimney intake place of check-valves generation volume, the vortex that energy is high, this programme arranges brokenly and revolves muscle on the flue inner wall face of check-valves, preferably, it is consistent to the direction of flue outlet with chimney intake that this breaks the length direction revolving muscle, on the one hand, utilize vortex along being provided with brokenly the internal face High Rotation Speed revolving muscle, to realize brokenly revolving the cutting of muscle to vortex, thus it is little to make it be separated into volume, the little vortex of easy dissipation, utilize little volution energy low, the feature of easy dissipation, to realize the noise reduction object to lampblack absorber, on the other hand, for the oil smoke along flue rectilinear motion, this is broken, and to revolve the contact area of muscle and oil smoke little, and the resistance produced the oil smoke along flue rectilinear motion is little, so effectively ensure that the efficiency of lampblack absorber.
In addition, the check-valves in above-described embodiment provided by the invention can also have following additional technical feature:
According to one embodiment of present invention, described internal face comprises diffusion face, and described diffusion face is from described chimney intake to described flue outlet, and the outside to described valve body tilts gradually; Wherein, describedly broken revolve muscle and be arranged on described diffusion face.
The face of diffusion described in the present invention refers to the side internal face near snail tongue in flue, this internal face can be plane or arcwall face, and the maximum angle of the angle of this plane and horizontal plane or this arcwall face and horizontal plane is less than 90 °, preferably, the outlet of this diffusion face and spiral case is tangent.
By arranging this structure, match from the flow profile after spiral case flows out to make flue shape and flue gas, thus reduction oil smoke flows into from spiral case the knots modification flowed to Process in Chimney, to reduce the resistance that oil smoke is subject to when flowing through check-valves and spiral case junction further, thus reduce energy and the volume of vortex; In addition, because the part kinetic energy of diffusion face place oil smoke is static energy, its flow velocity is caused correspondingly to reduce, now, the oil smoke of deceleration can result in blockage to the high speed oil smoke of follow-up inflow, thus forms vortex on diffusion face, this programme revolves muscle be arranged on the diffusion face of check-valves by broken, effectively can decompose this part vortex, to realize the noise reduction to lampblack absorber, reduce oil smoke energy loss herein simultaneously.
According to one embodiment of present invention, described broken to revolve muscle vertical with described diffusion face, and many described break revolve between muscle parallel.
Except producing the part oil smoke of vortex, other oil smoke entering flue can along flue axial streamlined flow, to revolve muscle vertical with diffusion face by arranging brokenly for this programme, and many broken revolve between muscle parallel, then while realizing utilizing the object of breaking and revolving muscle cutting vortex, to reduce the flue gas of streamlined flow and broken contact area of revolving between muscle further, thus the resistance that the flue gas reducing streamlined flow is subject in its motion process, thus relatively reduce the energy consumption of lampblack absorber.
According to one embodiment of present invention, many described broken revolve muscle and arranges at equal intervals, and adjacent two described broken ultimate ranges of revolving between muscle are less than the centrifugal wind wheel thickness of centrifugal blower in described lampblack absorber.
Specifically, because the stroke of flue gas in spiral case is shorter, so, the flue gas arriving spiral case air outlet place is not disperseed in the thickness direction thereof effectively, thus the thickness vortex suitable with the centrifugal wind wheel thickness of centrifugal blower is formed at the chimney intake place of spiral case air outlet place or check-valves, this programme is less than the centrifugal wind wheel thickness of centrifugal blower in lampblack absorber by arranging adjacent two broken ultimate ranges of revolving between muscle, to guarantee brokenly that revolving muscle can cut vortex effectively, thus guarantee the realization of the object of its noise reduction.
According to one embodiment of present invention, near the described broken height revolving muscle at the center in described diffusion face, higher than the described broken height revolving muscle away from described center.
Many broken revolve muscle same large volume, high-octane vortex are cut time, by the broken muscle that revolves arranging differing heights, this vortex is cut, be volume, the unbalanced distribution of energy between the multiple little vortex formed to make cutting, and then make multiple little vortex keep different sound frequencies and speed, cause the problem of noise to avoid the frequency of multiple little vortex to superpose, make the noise reduction of product more reliable.
According to one embodiment of present invention, the described broken height revolving muscle is not less than 3mm, and is not more than 20mm.
The height revolving muscle is set brokenly and is not less than 3mm, with the radius making brokenly the height revolving muscle be greater than general vortex, thus guarantee brokenly that revolving muscle can cut vortex effectively; And the height revolving muscle be set brokenly be not more than 20mm, to guarantee brokenly working strength and the rigidity of revolving muscle, avoid high speed oil smoke flow through broken revolve muscle time cause brokenly the problem of revolving muscle flutter; In addition, revolve muscle with valve body by the integrated scheme of injection molding manner for broken, the height revolving muscle is set brokenly and is no more than 20mm, can effectively ensure brokenly the quality of production of revolving muscle, thus the qualification rate of raising product.
According to one embodiment of present invention, many described broken minimum ranges of revolving between muscle with described chimney intake are equal; And the described of center near described diffusion face breaks the length of revolving muscle, be greater than the described broken length of revolving muscle away from described center.
Many broken revolve muscle same large volume, high-octane vortex are cut time, by the broken muscle that revolves arranging different length, this vortex is cut, be volume, the unbalanced distribution of energy between the multiple little vortex formed to make cutting, and then make multiple little vortex keep different sound frequencies and speed, cause the problem of noise to avoid the frequency of multiple little vortex to superpose, make the noise reduction of product more reliable.
According to one embodiment of present invention, described broken length of revolving muscle is not less than 5mm.
The length of revolving muscle is set brokenly and is not less than 5mm, to guarantee that vortex revolves muscle have sufficiently long time of contact with broken, to avoid due to broken, to revolve muscle too short for the clipping time to vortex, the situation causing the little vortex after cutting again to pool maelstrom under the effect of fluid sticks power occurs, thus ensure that brokenly that revolving muscle is cut with validity to vortex.
According to one embodiment of present invention, the described broken thickness revolving muscle is not less than 0.5mm, and is not more than 5mm.
The thickness revolving muscle is set brokenly and is not less than 0.5mm, to ensure brokenly working strength and the rigidity of revolving muscle, when avoiding high speed oil smoke flow through breaking and revolving muscle, cause brokenly the problem of revolving muscle flutter; The thickness revolving muscle is set brokenly and is not more than 5mm, excessive and cause oil smoke flow dynamic resistance to increase the negative effect brought with the thickness avoiding brokenly revolving muscle.
The embodiment of second aspect present invention provides a kind of lampblack absorber, comprising: centrifugal blower; With the check-valves described in above-mentioned any one, the chimney intake of described check-valves is communicated with the air outlet of described centrifugal blower, and the snail tongue that described check-valves broken revolves muscle and described centrifugal blower is close.
The lampblack absorber that the embodiment of second aspect present invention provides, by being provided with the check-valves described in above-mentioned any one embodiment, thus having all beneficial effects that described check-valves has, not repeating them here.
Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.
In description of the invention, it will be appreciated that, term " on ", the orientation of the instruction such as D score, "left", "right" or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or unit must have specific direction, with specific azimuth configuration and operation, therefore, limitation of the present invention can not be interpreted as.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the broken section structural representation of lampblack absorber described in one embodiment of the invention;
Fig. 2 is the perspective view of check-valves described in one embodiment of the invention under a visual angle;
Fig. 3 is the sectional structure schematic diagram of check-valves shown in Fig. 2;
Fig. 4 is the perspective view of check-valves shown in Fig. 2 under another visual angle;
Fig. 5 is the structure for amplifying schematic diagram in the portion of A shown in Fig. 4;
Fig. 6 be check-valves shown in Fig. 2 look up structural representation;
Fig. 7 is the structure for amplifying schematic diagram in the portion of B shown in Fig. 6;
Fig. 8 is the perspective view of centrifugal wind wheel shown in Fig. 1;
The flow direction of the instruction of arrow shown in figure oil smoke.
Wherein, the Reference numeral in Fig. 1 to Fig. 8 and the corresponding relation between component names are:
100 lampblack absorbers, 10 check-valves, 11 valve bodies, 12 flues, 121 chimney intakes, 122 flue outlets, 123 diffusion faces, 13 broken revolve muscle (13a first is broken revolves muscle, and 13b second is broken revolves muscle), 21 spiral cases, 22 snail tongues, 23 centrifugal wind wheels.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Referring to Fig. 1 to Fig. 8, described according to some embodiments of the invention check-valves 10 is described.
The check-valves 10 that the embodiment of first aspect present invention provides, for lampblack absorber 100, comprising: valve body 11, is provided with flue 12 in valve body 11, and valve body 11 offers the chimney intake 121 and flue outlet 122 that are communicated with flue 12; Wherein, the internal face of flue 12 is provided with brokenly near one end of chimney intake 121 and revolves muscle 13.
Particularly, as shown in Figures 1 to 7, in a specific embodiment of this programme, the internal face of flue 12 is provided with three separately broken near one end of chimney intake 121 and revolves muscle 13, be respectively one first and broken revolve that muscle 13a and two second is broken revolves muscle 13b, and two the second broken muscle 13b that revolve lay respectively at the first broken both sides of revolving muscle 13a.
The check-valves 10 that the embodiment of first aspect present invention provides, muscle 13 is revolved by arranging brokenly, cut with the large volume formed at chimney intake 121 place of its snail tongue 22 and check-valves 10 oil smoke flowed out at a high speed from centrifugal blower, high-octane vortex, with the little vortex making it be separated into little, the easy dissipation of volume, and dissipate gradually in the process that this little vortex is flowed in flue 12, thus avoid the noise that causes because volution energy is excessive, volume is excessive or Flutter Problem, realize the noise reduction object to lampblack absorber 100.
As shown in Figure 1, the embodiment of second aspect present invention provides a kind of lampblack absorber 100, comprise: centrifugal blower, the snail tongue 22 that centrifugal blower comprises spiral case 21, is arranged on the centrifugal wind wheel 23 of spiral case 21 inside, is arranged on spiral case 21 exit, and for driving the drive motors of centrifugal wind wheel 23; With the check-valves 10 described in above-mentioned any one, check-valves 10 is arranged on the upper end of centrifugal blower, and the chimney intake 121 of check-valves 10 is communicated with the air outlet of the spiral case 21 of centrifugal blower, and check-valves 10 broken to revolve muscle 13 close with the snail tongue 22 of centrifugal blower, namely as shown in Figure 1, brokenly the right-hand member that muscle 13 and snail tongue 22 are all positioned at lampblack absorber 100 is revolved.
Specifically, the chimney intake 121 of the check-valves 10 in this programme is connected with the air outlet of the centrifugal blower volute 21 of lampblack absorber 100, oil smoke is after the centrifugal wind wheel 23 of centrifugal blower throws away, spiral case 21 along centrifugal blower does movement in a curve, when it moves to the junction of snail tongue 22 and spiral case 21 and check-valves 10, stop owing to being subject to snail tongue 22, and its flow section changes, make flue gas large near chimney intake 121 place of check-valves 10 generation volume, the vortex that energy is high, this programme arranges brokenly and revolves muscle 13 on flue 12 internal face of check-valves 10, preferably, it is consistent to the direction of flue outlet 122 with chimney intake 121 that this breaks the length direction revolving muscle 13, on the one hand, utilize vortex along being provided with brokenly the internal face High Rotation Speed revolving muscle 13, to realize brokenly the cutting of revolving muscle 13 pairs of vortexs, thus it is little to make it be separated into volume, the little vortex of easy dissipation, utilize little volution energy low, the feature of easy dissipation, to realize the noise reduction object to lampblack absorber 100, on the other hand, for the oil smoke along flue 12 rectilinear motion, this is broken, and to revolve muscle 13 little with the contact area of oil smoke, and the resistance produced the oil smoke along flue 12 rectilinear motion is little, so effectively ensure that the efficiency of lampblack absorber 100.
In one embodiment of the invention, as shown in Figure 1, Figure 2, Figure 3 and Figure 4, the internal face of flue 12 comprises diffusion face 123, and diffusion face 123 is from chimney intake 121 to flue outlet 122, and the outside to valve body 11 tilts gradually; Wherein, brokenly revolve muscle 13 and be arranged on diffusion face 123.
The face of diffusion described in the present invention 123 refers to the side internal face near snail tongue 22 in flue 12, this internal face can be plane or arcwall face, and the maximum angle of the angle of this plane and horizontal plane or this arcwall face and horizontal plane is less than 90 °, particularly, as shown in Figure 1, the direction of this diffusion face 123 along described chimney intake 121 to described flue outlet 122 is tilted to the right gradually, even if diffusion face 123 is not more than the main flow direction of flue gas in flue 12 and the angle of horizontal plane with the angle of horizontal plane, preferably, this diffusion face 123 is tangent with the outlet of spiral case 21, and the main flow direction of flue gas in flue 12 is parallel with diffusion face 123.
In the above-described embodiments, by arranging this structure, match from the flow profile after spiral case 21 flows out to make flue 12 shape and flue gas, thus reduction oil smoke flows into from spiral case 21 knots modification flowed to flue 12 process, to reduce the resistance that oil smoke is subject to when flowing through check-valves 10 and spiral case 21 junction further, thus reduce energy and the volume of vortex; In addition, because the part kinetic energy of diffusion face 123 place oil smoke is static energy, its flow velocity is caused correspondingly to reduce, now, the oil smoke of deceleration can result in blockage to the high speed oil smoke of follow-up inflow, thus forms vortex on diffusion face 123, this programme revolves muscle 13 be arranged on the diffusion face 123 of check-valves 10 by broken, effectively can decompose this part vortex, to realize the noise reduction to lampblack absorber 100, reduce oil smoke energy loss herein simultaneously.
In one embodiment of the invention, as shown in Figure 7, broken to revolve muscle 13 vertical with diffusion face 123, and many break revolve between muscle 13 parallel.
In this embodiment, due to except the part oil smoke except producing vortex, other oil smoke entering flue 12 can along the axial streamlined flow of flue 12, to revolve muscle 13 vertical with diffusion face 123 by arranging brokenly for this programme, and many broken revolve between muscle 13 parallel, then utilizing in realization broken revolves while muscle 13 cuts the object of vortex, to reduce the flue gas of streamlined flow and broken contact area of revolving between muscle 13 further, thus the resistance that the flue gas reducing streamlined flow is subject in its motion process, thus relatively reduce the energy consumption of lampblack absorber 100.
In one embodiment of the invention, as shown in Fig. 6, Fig. 7 and Fig. 8, many broken revolves muscle 13 and arranges at equal intervals, and adjacent two broken ultimate range D revolved between muscle 13 are less than the centrifugal wind wheel 23 thickness C of centrifugal blower in lampblack absorber 100.
Specifically, because the stroke of flue gas in spiral case 21 is shorter, so, the flue gas arriving spiral case 21 air outlet place is not disperseed in the thickness direction thereof effectively, thus the thickness vortex suitable with the centrifugal wind wheel 23 thickness C of centrifugal blower is formed at chimney intake 121 place of spiral case 21 air outlet place or check-valves 10, this programme is less than the centrifugal wind wheel 23 thickness C of centrifugal blower in lampblack absorber 100 by arranging adjacent two broken ultimate range D revolved between muscle 13, to guarantee brokenly that revolving muscle 13 can cut vortex effectively, thus guarantee the realization of the object of its noise reduction.
In one embodiment of the invention, near the broken height revolving muscle 13 at the center in diffusion face 123, higher than the deep broken height revolving muscle 13.
In a detailed description of the invention of above-described embodiment, as shown in Figure 4 and Figure 5, the first broken height H 1 of revolving muscle 13a is greater than the second broken height H 2 of revolving muscle 13b.
In this embodiment, many broken revolve muscle 13 same large volume, high-octane vortex are cut time, by the broken muscle 13 that revolves arranging differing heights, this vortex is cut, be volume, the unbalanced distribution of energy between the multiple little vortex formed to make cutting, and then make multiple little vortex keep different sound frequencies and speed, cause the problem of noise to avoid the frequency of multiple little vortex to superpose, make the noise reduction of product more reliable.
In one embodiment of the invention, the broken height revolving muscle 13, namely first brokenly revolves muscle 13a and height H 1 and the second broken height H 2 of revolving muscle 13b, is all not less than 3mm, and is not more than 20mm.
In this embodiment, the height revolving muscle 13 is set brokenly and is not less than 3mm, with the radius making brokenly the height revolving muscle 13 be greater than general vortex, thus guarantee brokenly that revolving muscle 13 can cut vortex effectively; And the height revolving muscle 13 be set brokenly be not more than 20mm, to guarantee brokenly working strength and the rigidity of revolving muscle 13, avoid high speed oil smoke flow through broken revolve muscle 13 time cause brokenly the problem of revolving muscle 13 flutter; In addition, revolve muscle 13 with valve body 11 by the integrated scheme of injection molding manner for broken, the height revolving muscle 13 is set broken and is no more than 20mm, effectively can ensure brokenly the quality of production of revolving muscle 13, thus the qualification rate of raising product.
In the above-described embodiments, preferably, the second broken height H 2 of muscle 13b of revolving is for 7mm.
In one embodiment of the invention, as shown in Fig. 2 to 5, many broken minimum ranges of revolving between muscle 13 with chimney intake 121 are equal; And the broken length of revolving muscle 13 at the center in close diffusion face 123, be greater than deep broken length of revolving muscle 13.
In a detailed description of the invention of above-described embodiment, as shown in Figure 4 and Figure 5, the first broken length L1 revolving muscle 13a is greater than the second broken length L2 revolving muscle 13b.
In this embodiment, many broken revolve muscle 13 same large volume, high-octane vortex are cut time, by the broken muscle 13 that revolves arranging different length, this vortex is cut, be volume, the unbalanced distribution of energy between the multiple little vortex formed to make cutting, and then make multiple little vortex keep different sound frequencies and speed, cause the problem of noise to avoid the frequency of multiple little vortex to superpose, make the noise reduction of product more reliable.
In one particular embodiment of the present invention, broken length of revolving muscle 13, namely the first broken broken length L2 revolving muscle 13b of length L1 and second revolving muscle 13a is not less than 5mm.
In this embodiment, the length of revolving muscle 13 is set brokenly and is not less than 5mm, to guarantee that vortex revolves muscle 13 have sufficiently long time of contact with broken, too short to avoid owing to breaking the clipping time of revolving muscle 13 pairs of vortexs, the situation causing the little vortex after cutting again to pool maelstrom under the effect of fluid sticks power occurs, thus ensure that brokenly revolve muscle 13 pairs of vortexs be cut with validity.
In one embodiment of the invention, as shown in Figure 6 and Figure 7, broken thickness d of revolving muscle 13 is not less than 0.5mm, and is not more than 5mm.
Preferably, the first broken thickness revolving muscle 13a is identical with the second broken thickness revolving muscle 13b.
In this embodiment, the thickness revolving muscle 13 is set brokenly and is not less than 0.5mm, to ensure brokenly working strength and the rigidity of revolving muscle 13, cause brokenly the problem of revolving muscle 13 flutter when avoiding high speed oil smoke flow through breaking and revolving muscle 13, in addition, revolve muscle 13 with valve body 11 by the integrated scheme of injection molding manner for broken, the thickness revolving muscle 13 is set brokenly and is not less than 0.5mm, can effectively reduce brokenly the difficulty of processing revolving muscle 13, ensure the broken quality of production of revolving muscle 13, thus improve the qualification rate of product; The thickness revolving muscle 13 is set brokenly and is not more than 5mm, excessive and cause oil smoke flow dynamic resistance to increase the negative effect brought with the thickness avoiding brokenly revolving muscle 13.
In sum, check-valves provided by the invention, muscle is revolved by arranging brokenly, cut with the large volume formed at the chimney intake place of its snail tongue and check-valves the oil smoke flowed out at a high speed from centrifugal blower, high-octane vortex, with the little vortex making it be separated into little, the easy dissipation of volume, and dissipate gradually in the process that this little vortex is flowed in flue, thus avoid the noise that causes because volution energy is excessive, volume is excessive or Flutter Problem, realize the noise reduction object to lampblack absorber.
In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.The term such as term " installation ", " being connected ", " connection " all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; " being connected " can be directly be connected, and also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Claims (10)
1. a check-valves, for lampblack absorber, is characterized in that, comprising:
Valve body, is provided with flue in described valve body, and described valve body offers the chimney intake and flue outlet that are communicated with described flue;
Wherein, the internal face of described flue is provided with brokenly near one end of described chimney intake and revolves muscle.
2. check-valves according to claim 1, is characterized in that,
Described internal face comprises diffusion face, and described diffusion face is from described chimney intake to described flue outlet, and the outside to described valve body tilts gradually;
Wherein, describedly broken revolve muscle and be arranged on described diffusion face.
3. check-valves according to claim 2, is characterized in that,
It is described that broken to revolve muscle vertical with described diffusion face, and many described break revolve between muscle parallel.
4. check-valves according to claim 2, is characterized in that,
Many described broken revolve muscle and arranges at equal intervals, and adjacent two described broken ultimate ranges of revolving between muscle are less than the centrifugal wind wheel thickness of centrifugal blower in described lampblack absorber.
5. check-valves according to claim 2, is characterized in that,
Near the described broken height revolving muscle at the center in described diffusion face, higher than the described broken height revolving muscle away from described center.
6. check-valves according to claim 2, is characterized in that,
Many described broken minimum range of revolving between muscle with described chimney intake is equal; And
Near the described broken length of revolving muscle at the center in described diffusion face, be greater than the described broken length of revolving muscle away from described center.
7. check-valves according to any one of claim 1 to 6, is characterized in that,
The described broken height revolving muscle is not less than 3mm, and is not more than 20mm.
8. check-valves according to any one of claim 1 to 6, is characterized in that,
Described broken length of revolving muscle is not less than 5mm.
9. check-valves according to any one of claim 1 to 6, is characterized in that,
The described broken thickness revolving muscle is not less than 0.5mm, and is not more than 5mm.
10. a lampblack absorber, is characterized in that, comprising:
Centrifugal blower; With
Check-valves as claimed in any one of claims 1-9 wherein, the chimney intake of described check-valves is communicated with the air outlet of described centrifugal blower, and the snail tongue that described check-valves broken revolves muscle and described centrifugal blower is close.
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| CN201510483561.6A CN104990118B (en) | 2015-08-03 | 2015-08-03 | Check-valves and lampblack absorber |
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| CN201510483561.6A CN104990118B (en) | 2015-08-03 | 2015-08-03 | Check-valves and lampblack absorber |
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| CN104990118A true CN104990118A (en) | 2015-10-21 |
| CN104990118B CN104990118B (en) | 2018-03-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907748A (en) * | 2017-01-18 | 2017-06-30 | 广东美的厨房电器制造有限公司 | A kind of fan assembly and range hood |
| CN107842887A (en) * | 2017-10-19 | 2018-03-27 | 广东美的厨房电器制造有限公司 | Lampblack absorber |
| CN110748931A (en) * | 2018-07-24 | 2020-02-04 | 深圳富桂精密工业有限公司 | Smoke exhaust ventilator |
| CN112577085A (en) * | 2020-12-24 | 2021-03-30 | 杭州老板电器股份有限公司 | Smoke machine flue flow guide structure, check valve and volute tongue structure |
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| CN203024216U (en) * | 2012-09-25 | 2013-06-26 | 芜湖美的厨卫电器制造有限公司 | Range hood |
| CN203202315U (en) * | 2013-03-01 | 2013-09-18 | 广东万和电气有限公司 | Extractor hood check valve |
| CN104197050A (en) * | 2014-09-02 | 2014-12-10 | 章华 | Low flow resistance axial-flow type check valve with closing tail section with slow closing protection function |
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| CN1299939A (en) * | 2000-05-15 | 2001-06-20 | 王春志 | Water hammer-preventing ball non-return valve |
| JP4048059B2 (en) * | 2002-01-25 | 2008-02-13 | アマノ株式会社 | Check valve |
| CN203024216U (en) * | 2012-09-25 | 2013-06-26 | 芜湖美的厨卫电器制造有限公司 | Range hood |
| CN203202315U (en) * | 2013-03-01 | 2013-09-18 | 广东万和电气有限公司 | Extractor hood check valve |
| CN104197050A (en) * | 2014-09-02 | 2014-12-10 | 章华 | Low flow resistance axial-flow type check valve with closing tail section with slow closing protection function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106907748A (en) * | 2017-01-18 | 2017-06-30 | 广东美的厨房电器制造有限公司 | A kind of fan assembly and range hood |
| CN106907748B (en) * | 2017-01-18 | 2019-03-22 | 广东美的厨房电器制造有限公司 | A kind of fan assembly and range hood |
| CN107842887A (en) * | 2017-10-19 | 2018-03-27 | 广东美的厨房电器制造有限公司 | Lampblack absorber |
| CN107842887B (en) * | 2017-10-19 | 2020-01-31 | 广东美的厨房电器制造有限公司 | Fume exhaust fan |
| CN110748931A (en) * | 2018-07-24 | 2020-02-04 | 深圳富桂精密工业有限公司 | Smoke exhaust ventilator |
| CN112577085A (en) * | 2020-12-24 | 2021-03-30 | 杭州老板电器股份有限公司 | Smoke machine flue flow guide structure, check valve and volute tongue structure |
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|---|---|
| CN104990118B (en) | 2018-03-27 |
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