CN108151106B - Smoke machine capable of generating positive pressure - Google Patents
Smoke machine capable of generating positive pressure Download PDFInfo
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- CN108151106B CN108151106B CN201810187869.XA CN201810187869A CN108151106B CN 108151106 B CN108151106 B CN 108151106B CN 201810187869 A CN201810187869 A CN 201810187869A CN 108151106 B CN108151106 B CN 108151106B
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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
- F24C15/2035—Arrangement or mounting of filters
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Abstract
A smoke machine capable of generating positive pressure is provided with an air draft assembly, a positive pressure generating assembly capable of rotating and generating positive pressure and a cleaning program controller; the positive pressure generating assembly is fixedly assembled at the bottom of the oil pumping smoke hole of the air draft assembly. When using the convulsions subassembly of lampblack absorber, clean program controller takes place the subassembly through control convulsions subassembly and malleation and carries out the rotation of equidirectional not, thereby produce the air current of the oil absorption mouth direction of cigarette mouth to the convulsions subassembly by the play oil smoke mouth of convulsions subassembly, and the greasy dirt that makes originally attached to in convulsions subassembly surface by the drive of air current produces the opposite direction with the adhesive force originally, at first further reduce the adhesive force of greasy dirt, then make the greasy dirt break away from convulsions subassembly surface through the drive of the positive pressure air current that lasts again, reach the purpose of clean convulsions subassembly, this can produce the cigarette machine of malleation, and is simple in structure, and convenient to use's characteristics.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a range hood capable of generating positive pressure.
Background
The range hood is one of the indispensable electrical apparatus in the family nowadays. The range hood is arranged above the kitchen gas stove, and can absorb the oil smoke generated during cooking by generating negative pressure and discharge the oil smoke out of the room, thereby reducing air pollution in the kitchen. However, in the use process of the range hood, more oil smoke is attached to the range hood along with the direction of the negative pressure airflow, so that unnecessary troubles are caused for people to use.
Therefore, it is necessary to provide a positive pressure producing cigarette machine to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a positive pressure generating range hood which can generate positive pressure when in use and has the characteristics of good deoiling effect, simple structure and convenience in use.
The above object of the present invention is achieved by the following technical means.
The positive pressure generating assembly is provided with a smoke machine body and a positive pressure generating assembly capable of generating positive pressure through rotation;
the air pressure airflow covering area generated by the positive pressure generating assembly and the air pressure airflow covering area generated by the air draft assembly form a continuous air pressure airflow range;
the positive pressure generating assembly is fixedly assembled at the bottom of the air draft assembly of the cigarette machine body.
Preferably, the positive pressure generating assembly is provided with a first fan; the positive pressure generating assembly is also provided with a sleeve for the first fan to rotate inside; the sleeve is provided with a first mounting shaft for mounting the first fan.
The pipe orifice at one end of the sleeve in the opposite direction of gravity is fixedly connected with the oil fume suction port of the air draft assembly;
the inner wall surface of the sleeve and the outer wall surface of the sleeve are respectively provided with an oleophobic coating;
above, the maximum diameter of the first fan is R First, the A Fan blower The diameter of the sleeve where the first installation shaft is arranged in the sleeve is R Sleeve pipe ，R First, the A Fan blower ＜R Sleeve pipe ；
The diameter of the pipe orifice at one end of the sleeve 113 in the direction of gravity is defined as R1, and the diameter of the pipe orifice at one end of the sleeve 113 in the opposite direction of gravity is defined as R2;
r1 is more than R2 or R1 is less than or equal to R2;
the pipe orifice in the gravity direction of the sleeve is also provided with a first oil collecting device.
Preferably, the positive pressure generating assembly is a soot separator;
the oil fume separator is provided with a rotating motor, a rotating shaft and a multi-stage oil fume separation main body; two ends of the rotating shaft are respectively connected with one end of the rotating motor and the connecting shaft of the oil-smoke separation main body;
the rotating motor is fixedly assembled in the bottom radiation area of the oil smoke suction port of the air draft assembly and is electrically connected with the self-cleaning controller;
the multistage oil smoke separation main body is also provided with a plurality of concentric tubes with superposed center shafts, and the outer end faces of the concentric tubes are fixedly connected with the connecting shaft; the outer end face of the concentric tube, which is used for connecting with the connecting shaft, is defined as a first plane; establishing a plane coordinate system by taking the intersection point of the first plane and the central axis of the concentric tube as an origin; the middle axis is taken as the y axis, the gravity direction is taken as the negative direction of the y axis, and the negative direction of the gravity is taken as the positive direction of the y axis; taking the horizontal direction as an x axis; and the direction from the horizontal to the right is the positive direction of the x axis;
sequentially defining concentric tubes outwards from an original point along the x-axis direction as a 1 st concentric tube, an i th concentric tube, an n-1 th concentric tube and an n th concentric tube, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer; the length of the concentric tube along the negative direction of the y axis is H;
the length of the 1 st concentric tube along the negative direction of the y axis is H 1 ,. i ,... Times, the length of the n-1 concentric tube in the negative y-axis direction is H n-1 The length of the nth concentric tube along the negative direction of the y axis is H n ，H 1 Has the maximum value of H n The value of (d) is minimal;
1.1H above n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 (ii) a Height H of No. 1 Concentric tube 1 Not more than 1m.
One end of the concentric tube, which is connected with the connecting shaft, is defined as an inner air outlet, and the other end of the concentric tube is defined as an inner air inlet; the diameter of the end of the air outlet in the concentric tube is D relative to the x-axis.
The diameter of the end of the air inlet in the concentric tube is d relative to the x axis;
the diameter of the end part of the air outlet in the 1 st concentric tube is D (1),... The diameter of the end part of the air outlet in the i th concentric tube is D (i),... The diameter of the end part of the air outlet in the n-1 th concentric tube is D (n-1), and the diameter of the end part of the air outlet in the n th concentric tube is D (n);
the diameter of the end part of the air inlet in the 1 st concentric tube is d (1), the diameter of the end part of the air inlet in the i th concentric tube is d (i), the diameter of the end part of the air inlet in the n-1 th concentric tube is d (n-1), and the diameter of the end part of the air inlet in the n th concentric tube is d (n); d (1) > D (1),. ·., D (i) > D (i),. Once., D (n-1) > D (n-1),. Once., D (n) > D (n); d (1) < D (i) < D (n-1) < D (n).
The multistage oil fume separation main body is also provided with an oil fume adsorption separation blade; the oil fume adsorption separation blade is fixedly assembled on the outer wall surface of the end part of the air inlet in the concentric tube; the oil fume adsorption blocking sheet is an annular fan sheet which extends outwards along any local area of the outer wall surface of the end part of the air inlet in the concentric tube;
the included angle between the plane where the annular fan sheet is located and the y axis is A, and A is more than or equal to 20 degrees and less than 180 degrees; q annular fan blades are arranged, and Q is a positive integer;
preferably, Q = n, the ring sectors correspond to the concentric tubes one by one and are defined as a first ring sector, a second ring sector, a … … ith ring sector … … Q-1 ring sector and a Q ring sector; and i is more than or equal to 2 and less than or equal to Q, and Q is a positive integer;
the area of the annular fan blade is S; defining the area of the first ring fan blade as S1, the area of the second ring fan blade as S2, … … defining the area of the ith ring fan blade as Si, … … the area of the Q-1 ring fan blade as S (Q-1), and the area of the Q-1 ring fan blade as S (Q); s1 is more than 0 and less than or equal to S2 and less than or equal to S (Q-1) and less than or equal to S (Q); the annular fan blade is also provided with a plurality of through holes; define the total area of the through-holes as E Through-hole ，E Through hole ≤0.3S。
The multi-stage oil fume separation main body is also provided with a secondary vortex generation assembly;
the secondary vortex generating assembly is arranged into an annular sheet which is outward along the wall surface of any local area of the concentric tube and has a certain thickness M and extends along the negative direction of the y axis;
the number of the secondary vortex generating assemblies is m, and m is more than or equal to 1,m and is a positive integer;
preferably, the secondary vortex generating assembly is disposed between any concentric tube and the ring sector.
A hollow area for air flow to pass through is formed in any area of the annular sheet; the hollow area is set to be rectangular hollow or moire hollow;
the area of the hollow area is an S hollow area, the area of the annular sheet is an S annular sheet, and the S hollow area is more than or equal to 0 and less than the S annular sheet.
The plane where the secondary vortex generating assembly is located is intersected with the y axis, the included angle is B, and B is more than or equal to 10 degrees and less than or equal to 135 degrees;
the end part of the inner air outlet of the concentric tube is provided with an air collecting ring, and the air collecting ring is a second arc-shaped sheet which extends inwards along the end part of the inner air outlet of the concentric tube in the y-axis direction; the included angle between the second arc-shaped sheet and the x axis is P, and P is more than 0 degree and less than 90 degrees.
The inner wall surface of the cigarette machine body and the outer wall surface of the cigarette machine body are coated with the oleophobic coating; the oleophobic coating is provided as a nano-coating or a Teflon coating.
The air draft assembly is also provided with a second oil collecting device and a shell; the shell integrally covers the air draft assembly and the oil smoke separator or the sleeve in the shell; the oil collecting device is assembled at the bottom end of the shell.
Above-mentioned, the shell is provided with a plurality of first air inlets that are used for making the oil smoke ion get into the shell inside.
The shell is also provided with oil separation blocking pieces which correspond to the first air inlets one by one and are fixedly assembled; the gravity direction of the air draft assembly is taken as the lower part, and the reverse direction of the gravity direction of the air draft assembly is taken as the upper part;
the oil separation baffle is a first arc-shaped sheet which extends towards the inside of the shell along the upper end surface of the first air inlet with a certain included angle B, and B is more than 0 degree and less than 180 degrees.
The motor controller is also arranged; the motor controller is respectively and electrically connected with the air draft assembly and the first fan or the rotating motor;
the motor controller is set to be any one of ARM, DSP and BC 630-15075.
The invention relates to a smoke machine capable of generating positive pressure, which is provided with an air draft component and a positive pressure generating component capable of rotating and generating positive pressure; the positive pressure generating assembly is fixedly assembled at the bottom of the oil pumping smoke hole of the air draft assembly.
The smoke exhaust ventilator capable of generating positive pressure can simultaneously generate positive pressure in the using process, and can remove oil smoke by utilizing the negative pressure generated by the original smoke exhaust ventilator in the working process of oil smoke exhaust; after the process of exhausting the oil smoke is stopped, the attached oil stain can be cleaned out by generating negative pressure, and the oil smoke purifier has the characteristics of simple structure and convenience in use. The motor controller is also arranged; the motor controller is respectively connected with the air draft assembly and the positive pressure generation assembly, when the air draft assembly of the range hood is used, the cleaning program controller controls the air draft assembly and the positive pressure generation assembly to rotate in different directions, and positive pressure and negative pressure are correspondingly generated, so that air flows in different directions are utilized, the adhesive force of attached oil stains in the range hood is reduced, and the purpose of cleaning by utilizing the negative pressure is achieved. The positive pressure generating cigarette machine has the characteristics of simple structure and convenient use.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Figure 1 is a schematic diagram of the electrical connections of a positive pressure producing cigarette machine of the present invention.
Figure 2 is a schematic diagram of the external structure of a positive pressure producing cigarette machine according to embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of the internal structure of a cigarette machine capable of generating positive pressure according to embodiment 1 of the present invention.
Fig. 4 is a partially enlarged sectional view of f1, f2, and f3 in fig. 3.
Fig. 5 is a schematic structural diagram of the oil smoke separator in embodiment 1 of the present invention.
Fig. 6 is a horizontally developed schematic view of the secondary vortex generating assembly in embodiment 1 of the present invention.
Fig. 7 is a top view of a multi-step lampblack separation body in embodiment 1 of the invention.
Fig. 8 is a perspective view of a multi-step lampblack separation main body in embodiment 1 of the present invention.
Fig. 9 is a schematic structural view of a multi-stage oil-smoke separation main body in embodiment 1 of the present invention.
Fig. 10 is a perspective view of a multi-step lampblack separation body in embodiment 1 of the present invention.
Fig. 11 is a perspective view of an oil-smoke separating body in example 4 of the present invention.
Fig. 12 is a perspective view of a positive pressure generating module in embodiment 5 of the present invention.
FIG. 13 is a sectional view of a positive pressure generating module in example 5 of the present invention.
FIG. 14 is a sectional view of a positive pressure generating module in example 6 of the present invention.
FIG. 15 is a schematic view of the assembly of the positive pressure generating assembly and the air extracting assembly of the present invention.
In fig. 1 to 15, there are included:
a positive pressure generating assembly 111, a first fan 112, a sleeve 113, a first mounting shaft 114 and a first oil collecting device 115;
an oil fume separator 100, a rotating shaft 101, a rotating motor 102, a multi-stage oil fume separation body 103, an oleophobic coating 104 and an annular fan blade 105;
a through hole 106, a secondary eddy current generating component 107;
a connecting shaft 120, an inner air outlet 130 and an inner air inlet 140;
the housing 201, the first air inlet 2011, the first arced sheet 2012; a second oil collector 202; an air draft assembly 203;
a motor controller 300.
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A cigarette machine capable of generating positive pressure. As shown in fig. 1 to 10, a positive pressure generating assembly 111 is provided which is provided with a cigarette machine body and can generate positive pressure by rotation;
the air pressure airflow covering area generated by the positive pressure generating assembly 111 and the air pressure airflow covering area generated by the air draft assembly 203 form a continuous air pressure airflow range;
the positive pressure generating assembly 111 is fixedly mounted to the bottom of the extractor assembly 203 of the cigarette machine body.
In this embodiment, the positive pressure generating assembly 111 is fixedly mounted at the bottom of the oil smoke extraction port of the air draft assembly 203.
It should be particularly noted that the positional relationship between the positive pressure generating component 111 and the air draft component 203 is not limited to that described in this embodiment, and the positive pressure generating component 111 may be disposed above the oil smoke exhaust port of the air draft component 203, and it is only necessary to ensure that the air pressure airflow covering region generated by the positive pressure generating component 111 and the air pressure airflow covering region generated by the air draft component 203 can form a continuous air pressure airflow range, that is, the airflows generated between the positive pressure generating component 111 and the air draft component 203 can affect each other, as a common knowledge of a person skilled in the art, the specific connection relationship may be appropriately changed, and details will not be described again.
The positive pressure generating assembly 111 is provided as a soot separator 100; wherein, the oil smoke separator 100 is provided with a rotating motor 102, a rotating shaft 101 and a multi-stage oil smoke separation main body 103; both ends of the rotary shaft 101 are connected to one end of the rotary motor 102 and the connection shaft 120 of the multi-step soot separation body, respectively.
Wherein, the rotating electrical machine 102 is fixedly mounted at the bottom radiation area of the smoke exhaust of the ventilation assembly 203.
The multi-step oil smoke separation main body 103 is further provided with a plurality of concentric tubes 110 with coincident center axes, and the outer end faces of the concentric tubes 110 are fixedly connected with the connecting shaft 120; an outer end surface of the concentric tube 110 for connection with the connection shaft 120 is defined as a first plane; establishing a plane coordinate system by taking the intersection point of the first plane and the central axis of the concentric tube 110 as an origin; the center axis is used as a y axis, the gravity direction is used as a y axis negative direction, and the gravity reverse direction is used as a y axis positive direction; taking the horizontal direction as an x axis; and the direction from the horizontal to the right is the positive direction of the x axis;
the concentric tubes 110 outward from the origin along the x-axis direction are sequentially defined as a 1 st concentric tube 110, an i. The length of the concentric tube 110 in the negative y-axis direction is H;
wherein, the length of the 1 st concentric tube 110 along the negative direction of the y axis is H 1 ,... Times, the length of the i-th concentric tube 110 in the negative y-axis direction is H i ,... Times, the n-1 concentric tube 110 has a length H in the negative y-axis direction n-1 The length of the n-th concentric tube 110 along the negative direction of the y-axis is H n ，H 1 Has the maximum value of H n The value of (d) is minimal; 1.1H n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 (ii) a The height H1 of the 1 st concentric tube 110 is not greater than 1m.
Defining one end of the concentric tube 110, which is connected to the connecting shaft 120, as an inner air outlet 130, and defining the other end of the concentric tube 110 as an inner air inlet 140; the diameter of the end of the air outlet 130 in the concentric tube 110 is D relative to the x-axis;
the diameter of the end of the inlet 140 in the concentric tube 110 is d with respect to the x-axis;
the diameter of the end portion of the air outlet 130 in the 1 st concentric tube 110 is D (1),... The diameter of the end portion of the air outlet 130 in the i st concentric tube 110 is D (i),... The diameter of the end portion of the air outlet 130 in the n-1 st concentric tube 110 is D (n-1), and the diameter of the end portion of the air outlet 130 in the n th concentric tube 110 is D (n);
wherein, the diameter of the end of the inlet 140 in the 1 st concentric tube 110 is d (1),... The diameter of the end of the inlet 140 in the i st concentric tube 110 is d (i),... The diameter of the end of the inlet 140 in the n-1 st concentric tube 110 is d (n-1), and the diameter of the end of the inlet 140 in the n st concentric tube 110 is d (n);
D(1)＞d(1)，......,D(i)＞d(i),......,D(n-1)＞d(n-1),......,D(n)＞d(n)；D(1)＜D(i)＜D(n-1)＜D(n)。
the multi-stage oil fume separation main body 103 is also provided with an oil fume adsorption separation blade; the oil fume adsorption separation blade is fixedly assembled on the outer wall surface of the end part of the air inlet 140 in the concentric tube 110; the oil smoke adsorption blocking sheet is arranged as an annular fan sheet 105 which extends outwards along any local area of the outer wall surface of the end part of the air inlet 140 in the concentric tube 110;
the included angle between the plane of the annular fan sheet 105 and the y axis is A, and A is more than or equal to 20 degrees and less than 180 degrees; the ring sectors 105 are provided in Q, Q being a positive integer.
Preferably Q = n, the ring sectors 105 are associated one-to-one with the concentric tubes 110, defined as the first ring sector 105, the second ring sector 105, … … ith ring sector 105 … … Q-1 ring sector 105, Q ring sector 105; and i is more than or equal to 2 and less than or equal to Q, and Q is a positive integer;
the area of the ring sector 105 is S; defining the area of the first ring sector 105 as S1, the area of the second ring sector 105 as S2, … … the area of the i-th ring sector 105 as Si, … … the area of the Q-1 ring sector 105 as S (Q-1), and the area of the Q-th ring sector 105 as S (Q); s1 is more than 0 and less than or equal to S2 and less than or equal to S (Q-1) and less than or equal to S (Q); the ring sector 105 is also provided with a plurality of through holes 106; the total area of the through-holes 106 is defined as E Through hole 106 ，E Through-hole 106 ≤0.3S。
The multi-stage oil fume separation main body 103 is also provided with a secondary vortex generation assembly 107; the secondary vortex generating component 107 is arranged to be an annular sheet which faces outwards along the wall surface of any local area of the concentric tube 110 and has a certain thickness M and extends along the negative direction of the y axis;
the number of the secondary vortex generating assemblies 107 is m, and m is more than or equal to 1,m and is a positive integer;
in the present embodiment, the secondary vortex generating assembly 107 is disposed between any concentric tube 110 and the ring-shaped fan 105, but it should be noted that the secondary vortex generating assembly 107 is not limited to being disposed only between any concentric tube 110 and the ring-shaped fan 105, and may be disposed in a concentric tube according to actual user requirements.
Wherein a hollow area for air flow to pass through is formed in any area of the annular sheet; the hollow area is set to be rectangular hollow or moire hollow; the area of the hollow area is an S hollow area, the area of the annular sheet is an S annular sheet, and the S hollow area is more than or equal to 0 and less than the S annular sheet.
The plane of the secondary vortex generating assembly 107 is intersected with the y axis, the included angle is B, and B is more than or equal to 10 degrees and less than or equal to 135 degrees.
The end part of the inner air outlet 130 of the concentric tube 110 is provided with an air collecting ring, and the air collecting ring is provided with a second arc-shaped sheet 108 which extends inwards along the end part of the inner air outlet 130 of the concentric tube 110 in the y-axis direction; the included angle between the second arc-shaped piece 108 and the x axis is P, and P is more than 0 degree and less than 90 degrees.
The inner wall surface of the cigarette machine body and the outer wall surface of the cigarette machine body are coated with an oleophobic coating 104; oleophobic coating 104 is provided as a teflon coating.
The air draft assembly 203 is also provided with a second oil collecting device 202 and a shell 201; the shell 201 integrally covers the air draft assembly 203 and the oil smoke separator 100 in the shell; the second oil collecting device is mounted at the bottom end of the housing 201.
The housing 201 is provided with a plurality of first air inlets 2011 for allowing the oil smoke ions to enter the interior of the housing 201. The housing 201 is further provided with oil separation blocking pieces which are fixedly assembled and correspond to the first air inlets 2011 one by one; the gravity direction of the ventilation assembly 203 is taken as the lower direction, and the reverse direction of the gravity direction of the ventilation assembly 203 is taken as the upper direction.
The oil separation baffle is arranged to form a certain included angle B along the upper end surface of the first air inlet 2011, and the first arc-shaped piece 2012,0 degrees which extends towards the interior of the shell 201 is more than B and less than 180 degrees.
Through setting up the gas collection ring, the gas collection ring sets up to second arc piece 108 to set up second arc piece 108 and interior gas outlet 130 to the contained angle and be P, be favorable to forming concentrated positive pressure air current.
The second oil collecting device 202 is configured as an oil collecting cup, and the specific structure of the oil collecting cup is not described in detail as the oil collecting cup is common knowledge of those skilled in the art.
In this embodiment, the number of the ring-shaped fan blades 105 is set to be 3, and the ring-shaped fan blades 105 correspond to the concentric tubes 110 one by one, and are respectively defined as a first ring-shaped fan blade 105, a second ring-shaped fan blade 105, and a third ring-shaped fan blade 105; i.e., the 1 st concentric tube 110 corresponds to the first annular sector 105; i.e., the 2 nd concentric tube 110 corresponds to the second ring sector 105; i.e. the 3 rd concentric tube 110 corresponds to the third ring sector 105.
In this embodiment, the number of the secondary vortex generating assemblies 107 is 2, one end of each of the 2 secondary vortex generating assemblies 1071 is disposed at the end of the inner inlet 140 of the 2 nd concentric tube 110 and the end of the inner inlet 140 of the 3 rd concentric tube 110,
in this embodiment, two ends of one of the secondary vortex generating assemblies 107 are respectively connected to the O1 surface of the outer wall surface of the 2 nd concentric tube 110 and the 02 surface of the second ring-shaped fan blade 105; the other secondary vortex generating assembly 107 has two ends connected to the outer wall surface O1 of the 3 rd concentric tube 110110 and the O2 surface of the third ring segment 105, respectively.
The secondary vortex generating assembly 107 is arranged to realize the positive pressure function, namely, the vortex flow field generated by the high-speed rotation of the secondary vortex generating assembly enables the annular fan piece 105 not to cover the flow guide area where the oil smoke gas flow is re-introduced into the annular fan piece 105, so that the oil smoke is prevented from being attached to the pipe wall of the concentric pipe 110, and meanwhile, the smoke machine is further ensured to achieve a perfect cleaning effect in the self-cleaning process.
The smoke machine capable of generating positive pressure and negative pressure can separate oil smoke by seven layers in the using process, and finally discharges almost clean gas through the gas outlet. The seven-layer separation is specifically as follows:
the seven-layer separation is specifically as follows:
first layer separation, inertial separation: the oil smoke enters the inside of the housing 201 through the first air inlet 2011 of the housing 201, and the oil smoke enters the first arc-shaped sheet 2012 after entering the first air inlet 2011 of the housing 201, because of the pressure difference between the inside of the housing 201 and the external environment and the abrupt change of the area of the first air inlet 2011, the speed of the air flow is accelerated, and the inertia momentum is relatively increased. And the oil smoke can form a very thin boundary layer around the arc-shaped sheet, and because the first air inlet 2011 of the shell 201 forms an included angle with the first arc-shaped sheet 2012, the oil smoke is forced to flow upwards and enter the oil smoke separator 100 after flowing downwards along the first arc-shaped sheet 2012, so that the heavier oil and the crude oil smoke flow field move downwards separately in the downward inertial motion and are collected in the second oil collecting device 202 at the bottom of the shell 201, and the first inertial separation is realized.
Second layer separation, vortex separation: the oil smoke particles separated by the first layer further generate flow field separation in the direction of the first arc-shaped sheet 2012 from the downward-upward flowing flow, and the oil smoke particles cause an unstable flow field under the flow field separation, so as to further form a vortex. The flow field or the vortex can interact and influence with the adjacent flow field or the vortex, a continuously rotating flow field is formed on the first arc-shaped sheet 2012, and the rotating vortex reaches the maximum vortex amount. The remaining lighter oil smoke will not stop at the rotating vortex of the first arced sheet 2012 and accumulate to a certain weight, and the flow field will not support the weight of the oil drop and will fall down or flow along the first arced sheet 2012 to the second oil collecting device 202.
Third layer separation, centrifugal separation: the ring sectors 105 rotate with the concentric tube of oil 110 creating centrifugal force which interacts with the suction of the fan. After the first separation, the remaining light oil smoke firstly contacts the outermost end of the ring-shaped fan blade 105 and then enters the concentric tube 110 when entering the concentric tube 110, the centrifugal force at the outermost end of the ring-shaped fan blade 105 can enable a part of the fluid or the oil smoke particles to be separated or blocked to enter the concentric tube 110 and move outwards, then the fluid or the oil smoke particles are thrown onto the first arc-shaped sheet 2012 of the shell 201 at a high tangential velocity, and the oil smoke on the first arc is thrown onto the shell 201 again.
Fourth layer separation, inertial separation and centrifugal separation: inertial separation and centrifugal separation: after the third layer of separation, the remaining oil smoke with lighter weight is subjected to the centrifugal force and the attraction force at the same time, but the relative attraction force is larger than the centrifugal force. Some of the oil smoke will flow to the adjacent ring-shaped fan blades 105 through the through holes 106, and will be gathered with other oil smoke or oil smoke particles into larger oil smoke particles to flow downward due to the inertia effect, and the oil smoke particles will be thrown out of the ring-shaped fan blades 105 again at a higher tangential speed due to the centrifugal force effect, and will be thrown onto the housing 201 again.
Fifth layer separation, cyclonic centrifugal force and secondary vortex generation of concentric tubes 110: the inner wall of the concentric tube 110 rotates to form a cyclone, the concentric tube 110 is a low-pressure area, fluid or particles in the tube move towards the wall of the tube under the action of centrifugal force, the tube wall forms a high tangential velocity, and part of oil smoke is blocked from flowing upwards. In addition, the residual oil smoke can form vortex in the vortex generating device, and rotate continuously, so that the oil smoke is captured and is prevented from escaping from the concentric pipe 110. When the attraction force and the centrifugal force are removed, the secondary vortex which continuously rotates and the oil smoke which moves along the wall of the concentric tube 110 in a high tangential line can flow downwards along the inner wall of the concentric tube 110 due to gravity.
Sixth layer separation, secondary vortex generating assembly 107 separation: the secondary vortex generating component 107 at one end of the concentric tube 110 generates flow field separation on the remaining oil smoke, and the oil smoke is captured by the vortex which is formed by blocking part of the oil smoke from flowing upwards and rotating automatically due to the instability of the flow field.
Seventh layer separation, air draft assembly 203 centrifugal separation: after the separation of the first four layers, a small amount of very light oil smoke particles are left to be discharged from the airflow formed by the rotation of the fan in the air draft assembly 203 due to pressure difference, the rotating fan forms centrifugal force to throw the remaining small amount of oil smoke particles to the inner wall of the fan, finally, almost clean gas is discharged outside through the air outlet, and meanwhile, the air draft assembly 203 is also ensured not to have excessive oil stains attached to the air draft assembly 203 in the daily use process. But also ensures the suction force of the air draft assembly 203 on the oil smoke, and simultaneously facilitates the subsequent positive pressure cleaning of a small amount of attached oil stain.
The smoke machine capable of generating positive pressure is provided with an air draft assembly and a positive pressure generating assembly capable of rotating and generating positive pressure; the positive pressure generating assembly is fixedly assembled at the bottom of the oil pumping smoke hole of the air draft assembly. The smoke machine capable of generating positive pressure can realize the generation of positive pressure and negative pressure, wherein the negative pressure can be used for removing oil smoke during the working process of oil smoke exhaust; after the process of exhausting the oil smoke is stopped, the attached oil stain can be cleaned out by generating negative pressure, and the oil smoke purifier has the characteristics of simple structure and convenience in use.
Example 2.
A positive pressure producing cigarette machine, otherwise constructed as in example 1, except that: as shown in fig. 11, Q =4,Q ≠ n, n =3, and 4 ring-shaped fan pieces 105 are provided.
An extra ring-shaped fan 105 is disposed on the outer wall surface of any local area of the 1 st concentric tube 110 between the inlet of the 2 nd concentric tube 110 and the inlet of the 1 st concentric tube 110 along the negative direction of the y-axis.
By adding an annular fan blade, the positive pressure degree generated is enhanced, and the performance of the cigarette machine capable of generating positive pressure and negative pressure is further improved.
Example 3.
A positive pressure producing cigarette machine, otherwise configured the same as in any one of embodiments 1 or 2, except that:
as shown in fig. 12 and 13, the positive pressure generating module 111 is provided with a first fan 112.
The positive pressure generating assembly 111 is further provided with a sleeve 113 for the first fan 112 to rotate inside; a first mounting shaft 114 for mounting the first fan 112 is arranged on the inner wall of the sleeve 113; the inner wall surface of the sleeve 113 and the outer wall surface of the sleeve 113 are respectively provided with an oil repellent coating 104, and the oil repellent coating 104 is a teflon coating.
The maximum diameter of the first fan 112 is R First, the A Fan blower The diameter of the plane of the sleeve 113 where the first mounting shaft 114 is located in the sleeve 113 is R Sleeve pipe ，R First, the A Fan blower ＜R Sleeve pipe (ii) a Pipe orifice at one end of sleeve 113 in gravity direction and suction of suction assembly 203The oil smoke suction port is fixedly connected.
The diameter of the nozzle at one end of the sleeve 113 in the direction of gravity is greater than the diameter of the nozzle at one end of the sleeve 113 in the direction opposite to the direction of gravity, the diameter of the nozzle at one end of the sleeve 113 in the direction of gravity is defined as R1, and the diameter of the nozzle at one end of the sleeve 113 in the direction opposite to the direction of gravity is defined as R2, i.e., R1 is greater than R2.
The first fan 112 is substantially configured as an axial fan capable of being energized and rotating to generate an air flow, and the detailed structure thereof will not be described as common general knowledge of those skilled in the art.
The positive pressure generating assembly is arranged into the first fan and the sleeve, the maximum positive pressure airflow can be guaranteed to be generated, the pipe opening at one end of the sleeve in the opposite direction of the gravity is fixedly connected with the oil fume suction opening of the air draft assembly, oil stains cleared from the air draft assembly can be effectively guided, and the use cost is further reduced.
Example 4.
A positive pressure producing cigarette machine, otherwise constructed as in example 3, except that: as shown in fig. 14, the diameter of the orifice at one end of the sleeve 113 in the direction of gravity is smaller than the diameter of the orifice at one end of the sleeve 113 in the opposite direction of gravity, the diameter of the orifice at one end of the sleeve 113 in the direction of gravity is defined as R1, and the diameter of the orifice at one end of the sleeve 113 in the opposite direction of gravity is defined as R2, i.e., R1 < R2.
Through changing the diameter of the pipe orifices at the two ends of the sleeve, R1 is less than R2, and the integral performance of positive pressure generation of the smoke machine capable of generating positive pressure is improved.
Example 5.
A positive pressure producing cigarette machine, otherwise constructed as in embodiment 1 or 2, except that: as shown in fig. 15, a motor controller 300 is further provided; the motor controller 300 is respectively electrically connected with the air draft assembly 203 and the rotating motor 102 in the positive pressure generating assembly; the motor controller 300 is configured as BC630-15075, and the specific structure of the motor controller 300 is not described again as it is common knowledge of those skilled in the art.
Can realize properly adjusting the direction of turning to of control convulsions subassembly and rotating electrical machines through setting up machine controller, the positive negative pressure that nimble adjustment produced has further optimized the performance of this cigarette machine that can produce positive pressure and negative pressure.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A range hood capable of producing positive pressure, comprising: the positive pressure generating assembly is provided with a cigarette machine body and generates positive pressure through rotation; the positive pressure generating assembly is fixedly assembled at the bottom of the air draft assembly of the cigarette machine body; the air pressure airflow covering area of the positive pressure generating assembly and the air pressure airflow covering area generated by the air draft assembly form a continuous air pressure airflow range;
the positive pressure generating assembly is provided with a first fan; the positive pressure generating assembly is also provided with a sleeve for the first fan to rotate inside; the sleeve is provided with a first mounting shaft for mounting the first fan; the pipe orifice at one end of the sleeve is fixedly connected with the oil fume suction port of the air draft assembly;
the positive pressure generating assembly is arranged as an oil fume separator; the oil fume separator is provided with a rotating motor, a rotating shaft and a multi-stage oil fume separation main body; two ends of the rotating shaft are respectively connected with one end of the rotating motor and the connecting shaft of the multi-stage oil smoke separation main body; the rotating motor is fixedly assembled in a bottom radiation area of an oil smoke suction port of the air draft assembly and is electrically connected with the self-cleaning controller;
the multistage oil smoke separation main body is also provided with a plurality of concentric tubes with coincident center axes, and the outer end faces of the concentric tubes are fixedly connected with the connecting shaft; the outer end face of the concentric tube, which is used for being connected with the connecting shaft, is defined as a first plane; establishing a plane coordinate system by taking the intersection point of the first plane and the central axis of the concentric tube as an origin; the middle axis is taken as the y axis, the gravity direction is taken as the negative direction of the y axis, and the negative direction of the gravity is taken as the positive direction of the y axis; taking the horizontal direction as an x axis; and the direction from the horizontal to the right is the positive direction of the x axis;
the multi-order oil fume separation main body is also provided with a secondary vortex generation assembly; the secondary vortex generating assembly is arranged to be outwards arranged along the wall surface of any local area of the concentric tube and is provided with a ring-shaped sheet with the thickness M extending along the negative direction of the y axis.
2. A machine as claimed in claim 1, capable of producing a positive pressure, wherein: and the inner wall surface of the sleeve and the outer wall surface of the sleeve are respectively provided with an oleophobic coating.
3. A machine as claimed in claim 2, capable of producing a positive pressure, wherein: the maximum diameter of the first fan is R First fan The diameter of the sleeve where the first installation shaft is located in the sleeve is R Sleeve pipe ，R First fan ＜R Sleeve pipe ；
The diameter of the pipe orifice at one end of the sleeve in the gravity direction is defined as R1, and the diameter of the pipe orifice at one end of the sleeve in the opposite direction of the gravity direction is defined as R2;
r1 is more than R2; or
R1≤R2；
And the pipe orifice in the gravity direction of the sleeve is also provided with a first oil collecting device.
4. A machine as claimed in claim 1, capable of producing a positive pressure, wherein: sequentially defining concentric tubes outwards from an original point along the x-axis direction as a 1 st concentric tube, an i th concentric tube, an n-1 th concentric tube and an n th concentric tube, wherein i is more than or equal to 2 and less than or equal to n, and n is a positive integer; the length of the concentric tube along the negative direction of the y axis is H;
the length of the No. 1 concentric tube along the negative direction of the y axis is H 1 ,. i ,... Times, the length of the n-1 concentric tube in the negative y-axis direction is H n-1 The length of the nth concentric tube along the negative direction of the y axis is H n ，H 1 Has the maximum value of H n The value of (d) is minimal;
1.1H n ≤H i ≤10H n and 0.5H i-1 ≤H i ≤3H i-1 ；
Height H of the 1 st concentric tube 1 Not more than 1m;
defining one end of the concentric tube, which is connected with the connecting shaft, as an inner air outlet, and defining the other end of the concentric tube as an inner air inlet; the diameter of the end part of the air outlet in the concentric tube is D relative to the x axis;
the diameter of the end part of the air inlet in the concentric tube is d relative to the x axis;
the diameter of the end part of the air outlet in the 1 st concentric tube is D (1), the diameter of the end part of the air outlet in the i st concentric tube is D (i), the diameter of the end part of the air outlet in the n-1 st concentric tube is D (n-1), and the diameter of the end part of the air outlet in the n st concentric tube is D (n);
the diameter of the end part of the air inlet in the 1 st concentric tube is d (1), the diameter of the end part of the air inlet in the i st concentric tube is d (i), the diameter of the end part of the air inlet in the n-1 st concentric tube is d (n-1), and the diameter of the end part of the air inlet in the n st concentric tube is d (n);
D(1)＞d(1)，......，D(i)＞d(i)，......，D(n-1)＞d(n-1)，......，D(n)＞d(n)；D(1)＜D(i)＜D(n-1)＜D(n)；
the multistage oil fume separation main body is also provided with an oil fume adsorption separation blade; the oil smoke adsorption separation blade is fixedly assembled on the outer wall surface of the end part of the air inlet in the concentric tube; the oil fume adsorption blocking sheet is an annular fan sheet which extends outwards along any local area on the outer wall surface of the end part of the air inlet in the concentric tube;
the included angle between the plane where the annular fan sheet is located and the y axis is A, and A is more than or equal to 20 degrees and less than 180 degrees; the number of the annular fan blades is Q, and Q is a positive integer;
Q＝n；
the ring-shaped fan sheets are in one-to-one correspondence with the concentric tubes and are defined as a first ring-shaped fan sheet, a second ring-shaped fan sheet, a … … ith ring-shaped fan sheet … … Q-1 ring-shaped fan sheet and a Q ring-shaped fan sheet; and i is more than or equal to 2 and less than or equal to Q, and Q is a positive integer;
the area of the annular fan blade is S; defining the area of the first ring sector as S1, andthe area of the second ring sector is defined as S2, … … defines the area of the ith ring sector as Si, the area of the … … Q-1 ring sector as S (Q-1), and the area of the Qth ring sector as S (Q); s1 is more than 0 and less than or equal to S2 and less than or equal to S (Q-1) and less than or equal to S (Q); the annular fan blade is also provided with a plurality of through holes; define the total area of the through-holes as E Through hole ，E Through hole ≤0.3S。
5. A machine as claimed in claim 4, capable of producing a positive pressure, wherein:
the number of the secondary vortex generating assemblies is m, and m is more than or equal to 1,m and is a positive integer;
the secondary vortex generating assembly is arranged between any concentric tube and the annular fan sheet;
a hollow area for air flow to pass through is formed in any area of the annular sheet; the hollow area is set to be rectangular hollow or moire hollow;
the area of the hollowed-out area is an S hollowed-out area, the area of the annular sheet is an S annular sheet, and the area of the S hollowed-out area is greater than or equal to 0 and less than the S annular sheet;
the plane where the secondary vortex generating assembly is located is intersected with the y axis, the included angle is B, and B is more than or equal to 10 degrees and less than or equal to 135 degrees;
a gas collecting ring is arranged at the end part of an inner gas outlet of the concentric tube;
the gas collecting ring is arranged into a second arc-shaped sheet extending inwards along the end part of the inner gas outlet of the concentric tube in the y-axis direction; the included angle between the second arc-shaped sheet and the x axis is P, and P is more than 0 degree and less than 90 degrees.
6. A machine as claimed in claim 5, capable of producing a positive pressure, wherein: the inner wall surface of the cigarette machine body and the outer wall surface of the cigarette machine body are coated with an oleophobic coating; the oleophobic coating is arranged to be a nano coating or a Teflon coating;
the air draft assembly is also provided with a second oil collecting device and a shell; the shell integrally covers the air draft assembly and the oil smoke separator or the sleeve in the shell; the oil collecting device is assembled at the bottom end of the shell;
the shell is provided with a plurality of first air inlets that are used for making the oil smoke ion get into the shell inside.
7. A machine as claimed in claim 6, capable of producing a positive pressure, wherein:
the shell is also provided with an oil separation baffle which is used for being in one-to-one correspondence with the first air inlets and being fixedly assembled.
8. A machine as claimed in claim 7, capable of producing a positive pressure, wherein: the oil separation baffle is arranged to form an included angle B along the upper end face of the first air inlet and a first arc-shaped piece extending towards the inside of the shell, wherein the included angle B is larger than 0 degree and smaller than 180 degrees.
9. A machine as claimed in claim 8, wherein: a motor controller is also arranged; the motor controller is respectively electrically connected with the air draft assembly, the first fan or the rotating motor.
10. A machine as claimed in claim 9, capable of producing a positive pressure, wherein: the motor controller is set to be any one of ARM, DSP and BC 630-15075.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187869.XA CN108151106B (en) | 2018-03-07 | 2018-03-07 | Smoke machine capable of generating positive pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187869.XA CN108151106B (en) | 2018-03-07 | 2018-03-07 | Smoke machine capable of generating positive pressure |
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| CN108151106A CN108151106A (en) | 2018-06-12 |
| CN108151106B true CN108151106B (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810187869.XA Active CN108151106B (en) | 2018-03-07 | 2018-03-07 | Smoke machine capable of generating positive pressure |
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| CN111720870B (en) * | 2020-07-04 | 2022-11-25 | 中山市志美电器有限公司 | High-efficient lampblack purification range hood of oil smoke |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085736A (en) * | 1975-10-01 | 1978-04-25 | Vent-Cair, Inc. | Grease-hood apparatus |
| CN201003807Y (en) * | 2007-02-06 | 2008-01-09 | 李长江 | Double vortex gas filter |
| CN103673014A (en) * | 2013-12-03 | 2014-03-26 | 宁波方太厨具有限公司 | Cyclone for oil smoke separation of range hood |
| CN107504531A (en) * | 2017-05-27 | 2017-12-22 | 宁波奇尘电子科技有限公司 | A kind of efficient lampblack absorber |
| CN206996069U (en) * | 2017-06-27 | 2018-02-13 | 绍兴市金帝电器有限公司 | Lampblack absorber novel oil smoke separator |
| CN107726414B (en) * | 2017-11-27 | 2023-01-03 | 佛山市云米电器科技有限公司 | Smoke ventilator with axial-flow type wind wheel |
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