CN210267438U - Gas purification all-in-one machine - Google Patents
Gas purification all-in-one machine Download PDFInfo
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- CN210267438U CN210267438U CN201921325025.3U CN201921325025U CN210267438U CN 210267438 U CN210267438 U CN 210267438U CN 201921325025 U CN201921325025 U CN 201921325025U CN 210267438 U CN210267438 U CN 210267438U
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Abstract
The utility model discloses a gaseous all-in-one that purifies, including admit air unit, power pack and exhaust unit, power pack connects admit air the unit with thereby exhaust unit makes gaseous purification all-in-one is cylindrical on the whole. The utility model discloses a gas purification all-in-one has small, light in weight, efficient, the amount of wind is big, and the installation is simple and convenient with the dismantlement, the effect of noise reduction. And the inverted T-shaped limitation of the vertical column and the transverse wind gathering cover of the traditional range hood is also eliminated.
Description
Technical Field
The utility model relates to a gaseous purification all-in-one especially relates to an oil smoke purifies all-in-one.
Background
With the increase of the income and consumption level of residents, the living idea and health consciousness are enhanced, and the attention and requirements on indoor and outdoor environments are higher and higher. Under the condition that the outdoor environment is not changed, the indoor pollution source mainly comprises harmful gases such as formaldehyde and the like released by furniture building materials, building coatings and the like and particulate matters such as dust and the like, but the harmful gases can be reduced or eliminated by purchasing building materials and coatings with better quality, and the influence of the dust on human bodies can be reduced by increasing the indoor humidity and cleaning on duty. However, another source of indoor pollution, the kitchen, is often overlooked by people.
In the past, the oil fume generated by cooking in a kitchen is not paid sufficient attention, and people pay more and more attention to the environmental protection and health problems in the kitchen along with the improvement of living standard and cognitive level in the years. Due to the dietary habits of Chinese people, the pollution source in the kitchen mainly comes from the oil smoke emission during cooking. Therefore, the most direct method for eliminating the kitchen oil smoke at present is to buy a range hood with large suction force and eliminate the oil smoke generated by cooking as much as possible. Therefore, in recent years, the mainstream middle-high range hood on the market is mainly characterized in that: large suction force and low noise; attempts have been made to satisfy the purpose of purifying the oil smoke and reducing the noise by increasing the size of the range hood. At present, the main way of increasing the suction force of the range hood by the traditional range hood brand is to increase the air suction amount in unit time by increasing the size of the existing fan. However, this has the disadvantage of directly leading to a range hood of larger and larger size and weight. Meanwhile, the building construction needs to reduce weight, and a large number of light walls are adopted. This means that, when lampblack absorber weight increased, the bearing capacity of wall body was nevertheless descending for there is the potential safety hazard in wall body mount lampblack absorber. In addition, the range hood with huge size occupies most space of a kitchen, and because the structure of the conventional mainstream range hood is basically an inverted T-shaped structure of a vertical column and a transverse air collecting cover, the interior decoration (such as a cabinet and the like) design of the kitchen must be carried out according to the structure of the range hood, so that the flexibility and the personalized development of the kitchen decoration are limited to a great extent.
In summary, from the viewpoints of market development demand, building development trend, kitchen decoration and the like, three main contradictions exist at present:
1. the contradiction caused by market demand: the weight is increased while the suction force of the range hood is increased;
2. contradiction generated by building development trend: the contradiction that the bearing capacity of the heavier and heavier range hoods and the wall body is reduced;
3. contradiction of kitchen decoration: the configuration of the traditional range hood is contradictory to the requirements of flexibility and personalized development.
Therefore, there is a need for an integrated lampblack purification machine that can solve at least one of the above-mentioned three contradictions.
SUMMERY OF THE UTILITY MODEL
The above-mentioned demand is through according to the utility model discloses a gaseous purification all-in-one satisfies. According to the utility model discloses a gas purification all-in-one, its characterized in that: the gas purification all-in-one machine comprises a gas inlet unit, a power unit and an exhaust unit, wherein the power unit is connected with the gas inlet unit and the exhaust unit so that the gas purification all-in-one machine is cylindrical on the whole.
Preferably, the gas inlet unit allows gas to enter and is capable of filtering the gas.
Preferably, the power unit includes a motor and a fan wheel, the motor driving the fan wheel to rotate to draw air in through the air intake unit.
Preferably, the gas inlet unit is configured to receive the filtered gas from the gas outlet unit and to discharge the filtered gas to the gas outlet unit.
Preferably, the exhaust unit has an outlet air channel and a first layer of exhaust holes, and the outlet air channel is configured to allow a first portion of the filtered gas to be exhausted through the first layer of exhaust holes.
Preferably, the first layer of vents is configured such that the first portion of the filtered gas is discharged in a jet and the jet is at an angle to horizontal.
Preferably, the exhaust unit further has a second layer of exhaust holes, and the wind outlet channel is configured such that a second portion of the filtered gas is exhausted from the second layer of exhaust holes, wherein the second portion is larger than the first portion; and the second layer of vents is configured such that a rate of evacuation from the second layer of vents is less than a rate of evacuation from the first layer of vents.
Preferably, the exhaust unit further has a third layer of exhaust holes, the wind outlet channel is configured such that a third portion of the filtered gas is exhausted from the third layer of exhaust holes, and the third layer of exhaust holes is configured such that the third portion of the filtered gas is exhausted in a jet and the jet is at an angle to the horizontal.
Preferably, the gas exhaust unit is configured to completely exhaust the filtered gas to the outside of the source of the gas prior to entering the gas intake unit.
Preferably, the blade tips and the blade roots of the blades of the fan wheel have different mounting angles.
Compare with traditional fan for lampblack absorber, the utility model has the advantages of small, light in weight, efficient, the amount of wind is big, the installation with dismantle simple and convenient, noise reduction's effect. In addition, the inverted T-shaped limitation of a vertical column and a transverse air collecting cover of the traditional range hood is removed, and the integrated/personalized design of oil smoke, purification and kitchen can be performed. The kitchen can be without digging a flue and installing a smoke tube, so that the overall design of the kitchen is not influenced. The filtering membrane can be replaced in due time according to the actual use condition, and the used filter screen can be thrown away, so that the problem of secondary pollution of the range hood is greatly improved.
Drawings
Fig. 1 is an exploded view of the integrated lampblack purification machine of the utility model.
Fig. 2 is a side view (horizontal placement) of the lampblack purification integrated machine of the utility model.
Fig. 3 is the axial section view of the oil smoke purifying integrated machine of the utility model.
Fig. 4 is a perspective view of the power unit of the lampblack purification all-in-one machine of the utility model.
Fig. 5 is a front view of the exhaust cover and the exhaust top cover in an assembled state of the integrated lampblack purification machine of the present invention.
Fig. 6 is an exploded view of the air inlet unit of the lampblack purification all-in-one machine of the invention.
Fig. 7 is a schematic view of an embodiment of a fan wheel of the present invention.
Detailed Description
The oil smoke purification integrated machine of the present invention is further described by embodiments with reference to the accompanying drawings.
As shown in fig. 1, according to an embodiment of the present invention, the lampblack purification integrated machine includes a brushless dc motor 101, a fan impeller 103, a fan casing 105, an air intake front cover outer cover 107, an air intake front cover inner cover 109, a filter membrane 111, an air intake front cover outer cover magnetic sheet 113, an air intake front cover inner cover magnetic sheet 115, an exhaust outer cover 117, an exhaust outer cover inner cowling upper part 119, an exhaust outer cover inner cowling lower part 121, and an exhaust top cover 123.
Fig. 2 is a front view (horizontally placed) of the assembled lampblack purification all-in-one machine according to fig. 1. Fig. 3 is a cross-sectional view of the lampblack purification all-in-one machine shown in fig. 2 taken along a longitudinal axis. As can be seen from fig. 2 and 3, the integrated lampblack purification machine according to the present invention sequentially comprises an air inlet unit, a power unit and an exhaust unit from left to right (see fig. 2).
The air intake unit includes an air intake front cover outer cover 107, an air intake front cover inner cover 109, and a filter membrane 111. The intake front cover housing 107 is formed in a cylindrical shape with both ends open, and is provided with a plurality of holes for air to flow in and noise to be reduced. The intake front cover inner cover 109 is a bottomed cylindrical shape as a whole, and a plurality of holes are opened in the side wall and the bottom wall of the cylinder for gas to flow in. Of course, the reverse is also possible, that is, the air intake front cover outer cover is a cylinder with a bottom on the whole, and the air intake front cover inner cover is a cylinder with two open ends on the whole. The intake front cover inner cover 109 also includes a connection portion opposite the bottom wall for connecting, on the one hand, the intake front cover outer cover 107; on the other hand, to a power unit. In assembly, the intake front cover outer cover 107 is fitted around the outside of the intake front cover inner cover 109 and connected to the connecting portion of the intake front cover inner cover 109. In a non-limiting preferred embodiment, the intake front cover outer 107 is connected to the intake front cover inner 109 by magnetic coupling of a magnetic sheet 113 thereon and a magnetic sheet 115 on the intake front cover inner 109. Of course, other suitable means of attachment will occur to those skilled in the art. In the assembled state, a filter membrane 111 is provided between the intake front cover outer cover 107 and the intake front cover inner cover 109 to filter the inhaled soot. Filter membrane 111 is preferably a lampblack cotton. However, other suitable filter materials will occur to those skilled in the art. Fig. 6 shows an exploded view of the air inlet unit.
The power unit includes a brushless dc motor 101, a fan impeller 103, and a fan casing 105. Fan case 105 coaxially holds brushless dc motor 101 and fan wheel 103 such that brushless dc motor 101 can be directly connected to fan wheel 103 and drive fan wheel 103 to rotate within fan case 105. In the present invention, the motor may be any other type of motor, but the requirement of high power density must still be met. The outer surface of the fan case 105 is provided with a connecting portion for engagement with a connecting portion of the intake front cover inner cover 109 to connect the fan case 105 and the intake front cover inner cover 109 together. Preferably, the fan case 105 is threadedly coupled to the intake front cover inner shroud 109. FIG. 4 shows a perspective view of the assembled power unit. As can be seen in fig. 4, the support of the fan casing 105 for supporting the brushless dc motor 101 comprises a support structure of swept back design, preferably with a horizontal angle of 60 °. This swept back design has a noise reduction effect. The utility model discloses a blade root and the apex of fan wheel 103's blade adopt different torsion angle (promptly, installation angle) and high-efficient blade profile design for under the condition of the same amount of wind, characteristics such as the whole size is littleer, light in weight. Referring to fig. 7, one embodiment of a fan wheel 103 is shown. In this embodiment, the fan wheel 103 includes an impeller hub 103-1 and a plurality of blades 103-2. A plurality of blades 103-2 are attached to the impeller hub 103-1 at blade roots. The chord length of the blade tip section blade profile of the blade 103-2 is a preset value l, and the maximum thickness of the blade tip section blade profile is a preset value n; the chord length of the blade root section profile of the blade 103-2 is a preset value k, and the maximum thickness of the blade root section profile is a preset value e. Preferably, the blade 103-2 is configured such that l is less than k and n is less than e; and the chord length and maximum thickness of any section between the blade tip and the blade root are between l and k and n and e, respectively. The number of blades of the fan impeller 103 depends on the wind requirement, and is preferably between 10 and 15. The installation angle of the blade can be calculated according to actual needs. Preferably, the installation angle of the blade may be determined as follows.
vCircumferential direction＝ωr
In the above formulas, S is the airflow area in m2(ii) a d is the diameter relative to the impeller axis, in m; v is the air flow (i.e., air volume) in m3S; v is the air flow velocity in m/s; ω is the fan rotational angular velocity and r is the radius from the impeller axis in m. Where the subscript "bleed" refers to the air flow exiting the fan, and the subscript "circumferential" refers to the fan blade tip being in the circumferential direction.
Preferably, the initial value of the attack angle is selected to be zero, so that the installation angles of the blade root and the blade tip under the zero attack angle can be calculated to be respectively:
wherein, thetaBlade tip _0Is the mounting angle of the blade tip at zero angle of attack, thetaRoot _0Is the installation angle of the blade root at zero angle of attack. The other variables and subscripts have the same meaning as above. The value of the attack angle is changed in a certain step length, and a reasonable installation angle range can be finally obtained after multiple optimization iterations and adjustment of the installation angles of the blade tip and the blade root are carried out, and the coupling effect between the installation angles and the sweepback design is considered. More preferably, the blade tip mounting angle θBlade tipThe range of (A) is 32-38 degrees; root setting angle thetaBlade rootThe range of (a) is 51 to 60.
Through the blade profile design, the fan efficiency can be improved by 6% under the condition of equal size and equal electric power input; or, under the condition of the same size and electric power input, the air quantity of the new-structure fan can be increased by at least 6% compared with that of the traditional power fan.
The fan impeller 103 can be made of plastic, aluminum alloy and other materials and processed by processes such as precision casting and the like, and has the advantages of low cost and simple processing and manufacturing. Because the integrated molding is realized, no redundant parts exist.
The exhaust unit includes an exhaust cover 117, an exhaust cover inner cowl upper member 119, an exhaust cover inner cowl lower member 121, and an exhaust top cover 123. FIG. 5 shows the vent housing 117 and vent cap 123 assembled together. As can be seen from fig. 5, the exhaust cover 117 includes, in order from bottom to top, a constricted portion, a frustoconical flared portion, and a cylindrical portion. The throat has a connection for connecting the exhaust unit to the connection of the outer surface of the fan case 105, preferably by screwing, to connect the exhaust unit to the power unit. Thereby, the connection portion of the outer surface of the fan case 105 simultaneously connects the connection portion of the throat and the connection portion of the intake front cover inner cover 109, thereby forming a sealed connection between the exhaust outer cover 117 and the intake front cover inner cover 109. A first layer of exhaust holes 501 is provided around the frusto-conical flaring. A second layer of exhaust holes 503 is provided around the outer circumference of the cylindrical portion. In this embodiment, the second layer of exhaust holes consists of four sets of exhaust holes evenly spaced in the circumferential direction. Each of the second layer exhaust holes is formed as a rectangular slit hole elongated in the longitudinal axis direction of the exhaust unit. Preferably, each set of vent holes has 6 oblong slit holes. Other shapes of the aperture are also possible. In addition, it is contemplated that more or less than four sets of vent holes may be included, and each set of vent holes may include more or less than 6 oblong slit holes. The vent cap 123 is connected to the vent housing 117 at an end opposite the throat and includes a third layer of vent holes 505. A third layer of vent holes is provided around the side edges of the vent cap 123, each of which is configured to vent gas in a jet at an angle to the horizontal. In the illustrated embodiment for a flueless application, i.e., where air flowing through the smoke purification all-in-one is discharged directly into the kitchen, the exhaust hood 123 substantially closes the respective ends of the exhaust enclosure 117, allowing only gas to exit through the third layer of exhaust openings. However, in embodiments for a belt flue, exhaust cap 123, first through second layers of apertures, and filter membrane 111 may be omitted.
Referring to fig. 3 again, the exhaust unit has an upper cowling part 119 in the exhaust cover and a lower cowling part 121 in the exhaust cover fixed in the exhaust cover 117, so as to be used together with the exhaust top cover 123 to design the air outlet channel of the lampblack purification all-in-one machine into a three-layer structure.
The inner exhaust cover fairing lower part 121 separates the first layer structure of the air outlet channel from the second layer structure of the air outlet channel. In the first layer structure of the air outlet channel, the air passing through the fan impeller 103 is directly discharged from the first layer exhaust hole. One of the functions of the first layer of exhaust holes is to exhaust a part of clean air flowing through the fan impeller 103 after purifying the oil smoke, and the other function is to inject the part of clean air in a jet form and at a certain angle with the horizontal plane to form an air jet barrier to prevent the oil smoke which is not sucked below from spreading and escaping upwards, so that the oil smoke which is possibly spread and escaped is sucked into the air inlet front cover outer cover 107 again to achieve the purpose of exhausting the oil smoke as much as possible. Preferably, the portion of clean air is about 10% to about 30% of the total air flowing through the fan wheel 103. This volumetric flow ratio is achieved by designing the under cowl part 121 within the exhaust hood.
The second layer structure of the air outlet channel is spaced apart from the third layer structure of the air outlet channel by an upper part 119 of the inner cowling of the exhaust outer cowl. The second layer structure of the air outlet channel is configured to guide a part of clean air to be exhausted through the second layer of exhaust holes. One of the functions of the layer of exhaust holes is to exhaust part of the clean air flowing through the fan impeller 103; the second function is to blow against the person, so that the oil smoke overflowing to the face of the person can be at least partially dispersed, and further, the air of the local environment breathed by the person is kept clean. Preferably, this portion of the airflow is about 50% to about 80% of the total air flow through the fan wheel 103. The air outlet of the layer discharges relatively large amount, but the flow rate is relatively low because the air outlet of the second layer has large opening area, so as to ensure that the human face is not uncomfortable when being blown.
The third layer structure of the outlet air passage is defined between the exhaust outer cowl inner cowl upper member 119 and the exhaust top cover 123. And the gas flowing through the third layer structure of the air outlet channel is discharged through the third layer exhaust hole. The effect of the gas thus discharged is two: one is to exhaust the remaining clean air flowing through the fan wheel 103; and secondly, the oil smoke is discharged in a jet flow mode, so that the oil smoke is further captured, which is possible to overflow, all the oil smoke is restrained near the air inlet front cover outer cover, and the oil smoke can be captured through the air inlet front cover outer cover.
In operation, oil smoke gets into through air intake front shroud dustcoat 107, and through filtration membrane 111, adsorb filth in the oil smoke on filtration membrane 111, flow to fan impeller 103 through air intake front shroud inner cover 109 again, this structure has the function of purifying the oil smoke except that, still has good noise reduction effect owing to have a lot of holes.
Preferably, according to the utility model discloses an oil smoke purifies all-in-one still can include other functions, like illumination, filtration membrane change warning, intelligence control system etc..
Compare with traditional fan, according to the utility model discloses an oil smoke purifies all-in-one is satisfying under the prerequisite that big suction required, and the volume is littleer, weight is lighter, the noise is lower. Additionally, according to the utility model discloses an oil smoke purifies all-in-one is cylindrical on the whole to the restraint that the type of falling T design of having eliminated traditional lampblack absorber brought.
From the above disclosure, the purifying integrated machine according to the present invention can be used not only in the field of oil fume purification in kitchens, but also in other applications requiring purifying gas.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a gaseous purification all-in-one which characterized in that: the gas purification all-in-one machine comprises a gas inlet unit, a power unit and an exhaust unit, wherein the power unit is connected with the gas inlet unit and the exhaust unit so that the gas purification all-in-one machine is cylindrical on the whole.
2. The gas purification all-in-one machine of claim 1, wherein: the air intake unit allows air to enter and is capable of filtering the air.
3. The gas purification all-in-one machine of claim 1, wherein: the power unit includes a motor and a fan wheel, the motor driving the fan wheel to rotate to draw air in through the air intake unit.
4. The gas purification all-in-one machine of claim 1, wherein: the exhaust unit is configured to completely exhaust the filtered gas back to the source of the gas prior to entering the intake unit.
5. The gas purification all-in-one machine of claim 4, wherein: the exhaust unit has an outlet air channel and a first layer of exhaust holes, and the outlet air channel is configured to enable a first part of the filtered gas to be exhausted through the first layer of exhaust holes.
6. The gas purification all-in-one machine of claim 5, wherein: the first layer of vents is configured such that the first portion of the filtered gas is expelled in a jet and the jet is at an angle to horizontal.
7. The gas purification all-in-one machine of claim 5, wherein: the exhaust unit further has a second layer of exhaust holes, and the wind outlet channel is configured such that a second portion of the filtered gas is exhausted from the second layer of exhaust holes, wherein the second portion is larger than the first portion; and the second layer of vents is configured such that a rate of evacuation from the second layer of vents is less than a rate of evacuation from the first layer of vents.
8. The gas purification all-in-one machine of claim 5, wherein: the exhaust unit also has a third layer of exhaust vents, the outlet channel configured such that a third portion of the filtered gas is exhausted from the third layer of exhaust vents, and the third layer of exhaust vents configured such that the third portion of the filtered gas is exhausted in a jet and the jet is at an angle to horizontal.
9. The gas purification all-in-one machine of claim 1, wherein: the exhaust unit is configured to completely exhaust the filtered gas outside of a source of the gas prior to entering the intake unit.
10. The gas purification all-in-one machine of claim 3, wherein: the blade tip and the blade root of the blade of the fan impeller have different installation angles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921325025.3U CN210267438U (en) | 2019-08-15 | 2019-08-15 | Gas purification all-in-one machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921325025.3U CN210267438U (en) | 2019-08-15 | 2019-08-15 | Gas purification all-in-one machine |
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| CN210267438U true CN210267438U (en) | 2020-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360635A (en) * | 2019-08-15 | 2019-10-22 | 北京华清源创科技有限公司 | Gas purification all-in-one machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360635A (en) * | 2019-08-15 | 2019-10-22 | 北京华清源创科技有限公司 | Gas purification all-in-one machine |
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