CN108204623B - Positive pressure type self-cleaning cigarette machine air draft assembly - Google Patents
Positive pressure type self-cleaning cigarette machine air draft assembly Download PDFInfo
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- CN108204623B CN108204623B CN201810187870.2A CN201810187870A CN108204623B CN 108204623 B CN108204623 B CN 108204623B CN 201810187870 A CN201810187870 A CN 201810187870A CN 108204623 B CN108204623 B CN 108204623B
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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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- 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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- General Engineering & Computer Science (AREA)
- Separating Particles In Gases By Inertia (AREA)
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Abstract
A positive pressure type self-cleaning smoke exhaust assembly is provided with an exhaust assembly, a positive pressure generating assembly capable of rotating and generating positive pressure and a cleaning 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 controller produces the rotation that the subassembly carried out equidirectional through control convulsions subassembly and malleation, 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 make the greasy dirt of originally adhering to in convulsions subassembly surface produce the opposite direction with the adhesive force originally by the drive of air current, 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 positive pressure formula is from clearing up the cigarette machine convulsions subassembly, and is simple in structure, convenient to use's characteristics.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a positive pressure type self-cleaning range hood air draft assembly.
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 used for absorbing oil smoke generated during cooking, discharging the oil smoke out of a room and reducing air pollution in a kitchen. But the lampblack absorber can be because more oil smoke adsorbs in the convulsions subassembly of lampblack absorber in the use to reduced the convulsions effect of lampblack absorber, just so needed people to go regularly to dismantle the lampblack absorber this moment, then cleaned the greasy dirt in the convulsions subassembly.
The purpose of cleaning the air draft assembly is achieved by periodically disassembling, time and labor are consumed, and once the range hood is carelessly operated, the range hood can be damaged.
Therefore, aiming at the defects of the prior art, the positive pressure type exhausting component of the self-cleaning smoke machine is necessary to overcome the defects of the prior art.
Disclosure of Invention
The positive pressure type self-cleaning cigarette machine air draft assembly has the advantages that the defects in the prior art are avoided, the positive pressure type self-cleaning cigarette machine air draft assembly can be cleaned in real time through air flow generated by positive pressure when the positive pressure type self-cleaning cigarette machine air draft assembly is used, and the positive pressure type self-cleaning cigarette machine air draft assembly has the advantages of being simple in structure and convenient to use.
The above object of the present invention is achieved by the following technical means.
The utility model provides an it has cigarette machine self-cleaning technique, produces the inside convulsions subassembly that carries out automatic clearance of malleation to the convulsions subassembly of range hood.
Specifically, the device is provided with an air draft assembly, a positive pressure generating assembly capable of rotating and generating positive pressure and a cleaning controller; 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;
preferably, the positive pressure generating assembly is fixedly assembled at the bottom of the oil smoke pumping port of the air draft assembly.
The cleaning controller generates positive pressure through controlling the rotation of the positive pressure generating assembly to clean oil stains attached to the air draft assembly.
Defining the positive pressure generating component to generate positive pressure to rotate in a positive direction, and defining the positive direction to rotate in a negative direction;
preferably, the cleaning controller comprises the following control steps;
(1): controlling the rotating speed of the air draft assembly to be the lowest rotating speed or keeping the rotating speed unchanged;
(2): controlling the positive direction rotating speed of the positive pressure generating assembly to be adjusted to the maximum rotating speed and rotating for 5-60 seconds;
(3): stopping the positive direction rotation of the positive pressure generating assembly for 1-10 seconds;
(4): repeating the steps (2) and (3) N1 times circularly; n1 is more than or equal to 1, and N1 is a positive integer;
(5): controlling the air draft assembly to stop working, and circularly repeating the steps (2) and (3) for N2 times; n2 is greater than or equal to 1, and N2 is a positive integer.
In another preferred aspect, the cleaning controller controls the steps specifically as follows;
(1): controlling the rotating speed of the air draft assembly to be the lowest rotating speed or keeping the rotating speed unchanged;
(2): adjusting the positive pressure generating assembly to rotate in the positive direction of the maximum rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating assembly to rotate in the negative direction for 5-60 seconds;
(4): repeating the steps (2) and (3) N3 times circularly; n3 is greater than or equal to 1, and N3 is a positive integer.
In another preferred embodiment, the cleaning controller comprises the following steps;
(1): controlling the negative direction of the air draft assembly to rotate to the lowest rotating speed or keeping the rotating speed in the negative direction unchanged;
(2): controlling the positive pressure generating assembly to rotate in the positive direction, adjusting the rotating speed to the maximum rotating speed and keeping the rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating assembly to rotate in the negative direction for 5-60 seconds;
(4): repeating the steps (2) and (3) N3 times circularly; n3 is more than or equal to 1, and N3 is a positive integer;
(5): controlling the air draft assembly to stop working, and circularly repeating the steps (2) and (3) for N4 times; n4 is greater than or equal to 1, and N4 is a positive integer.
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 pipe orifice at one end of the sleeve pipe in the opposite direction of the gravity is fixedly connected with the oil fume suction port of the air draft assembly.
A first mounting shaft for mounting a first fan is arranged on the inner wall of the sleeve; and the inner wall surface of the sleeve and the outer wall surface of the sleeve are respectively provided with an oleophobic coating.
The maximum diameter of the first fan is R, the diameter of the sleeve where the first installation shaft is located in the sleeve is R sleeve, and R sleeve is smaller than R sleeve.
The diameter of the pipe orifice in the gravity direction of the sleeve is larger than the diameter of the pipe orifice in the gravity opposite direction of the sleeve; or
The diameter of the pipe orifice in the gravity direction of the sleeve is less than or equal to the diameter of the pipe orifice in the opposite direction of the gravity of the sleeve.
In another preferred mode, the positive pressure generating assembly is arranged as a lampblack 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 a bottom radiation area of the smoke suction port of the air draft assembly and is electrically connected with the self-cleaning controller;
the multi-stage oil fume separation main body is also provided with a plurality of concentric tubes with coincident 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 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 original point; 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 No. 1 concentric tube along the negative direction of the y axis is H 1 Said output is said, the length of the i-th concentric tube along the negative direction of the y-axis is H i Said n-1 concentric tube has a length H along the negative direction of the y-axis 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 No. 1 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 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 an 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 an air inlet in the 1 st concentric tube is d (1), the diameter of the end part of an air inlet in the i th concentric tube is d (i), the diameter of the end part of an air inlet in the n-1 th concentric tube is d (n-1), and the diameter of the end part of an air inlet in the n th concentric tube is d (n); d (1) > D (1),. Ang.. Ang., D (i) > D (i),. Ang.. Ang., D (n-1) > D (n-1),. Ang.. Ang., D (n) > D (n); d (1) < D (i) < D (n-1) < D (n).
The multi-stage 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 smoke adsorption blocking piece is an annular fan piece 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; q annular fan blades are arranged, and Q is a positive integer;
Q＝n；
the ring-shaped fan sheets correspond to the concentric tubes one by one and are defined as a first ring-shaped fan sheet, a second ring-shaped fan sheet, a ring-shaped fan sheet of (8230) \ 8230; a ring-shaped fan sheet of (i) \ 8230; (8230); a ring-shaped fan sheet of (Q-1); and a ring-shaped fan sheet of (Q); 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; the area of the first annular fan blade is defined as S1, the area of the second annular fan blade is defined as S2, \8230, the area of the ith annular fan blade is defined as Si, \8230, the area of the ith annular fan blade is defined as S (Q-1), and the area of the Q-1 annular fan blade is defined 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-smoke separation main body is also provided with a secondary vortex generating 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, m is more than or equal to 1, and m is a positive integer;
preferably, the secondary vortex generating assembly is disposed between any of the concentric tubes and the ring segment;
the secondary vortex generating assembly is arranged to be an annular sheet which is outwards arranged along any local area of the 01 surface of the concentric tube and has a certain thickness M and extends along the negative direction of the y axis, and a hollow-out 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 area is an S hollowed area, the area of the annular sheet is an S annular sheet, and the area of the S hollowed area is more than or equal to 0 and less than the area of the S annular sheet;
the plane of the secondary vortex generating assembly 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 air outlet of the concentric tube is provided with an air collecting ring;
the gas collecting ring is arranged as a second arc-shaped sheet extending inwards along the y-axis direction of the end part of the gas outlet of the concentric tube; 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 and the outer wall surface of the air draft assembly are coated with oleophobic coatings; the oleophobic coating is provided as a nano-coating or a Teflon coating.
The air exhaust component is also provided with an 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 for enabling oil smoke ions to enter the interior of the shell;
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 piece 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 cleaning controller is also provided with a standby power supply; the model of the cleaning controller is set to be any one of ARM, DSP and BC630-15075.
The positive pressure type self-cleaning range hood air draft assembly is provided with an air draft assembly, a positive pressure generating assembly capable of rotating and generating positive pressure and a cleaning 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 controller produces the rotation that the subassembly carried out equidirectional through control convulsions subassembly and malleation, 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 make the greasy dirt of originally adhering to in convulsions subassembly surface produce the opposite direction with the adhesive force originally by the drive of air current, 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 positive pressure formula is from clearing up the cigarette machine convulsions subassembly, and is simple in structure, convenient to use's characteristics.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic diagram of an electrical connection structure of an air draft assembly of a positive pressure type self-cleaning range hood.
Fig. 2 is a schematic external structural diagram of an air draft assembly of a positive pressure type self-cleaning range hood in embodiment 1 of the invention.
Fig. 3 is a schematic view of the internal structure of the positive pressure type self-cleaning smoking machine exhaust assembly in embodiment 1 of the invention.
Fig. 4 is a partially enlarged sectional view of f1, f2, and f3 in fig. 3.
Fig. 5 is a schematic structural view 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 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 unit in embodiment 5 of the present invention.
Fig. 13 is a sectional view of a positive pressure generating module in embodiment 5 of the present invention.
Fig. 14 is a sectional view of a positive pressure generating module in embodiment 6 of the present invention.
FIG. 15 is a schematic view of the positive pressure generating assembly and the exhausting 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;
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, an inner air inlet 140;
the housing 201, the first air inlet 2011, the first arced sheet 2012; an oil collecting device 202; an air draft assembly 203;
a cleaning controller 300, a backup power supply 301.
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A positive pressure type self-cleaning smoke exhaust assembly. As shown in figures 1 to 10 and 15,
the cleaning device is provided with an air draft component 203, a positive pressure generating component 111 which can rotate and generate positive pressure, and a cleaning controller 300; 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 can form a continuous air pressure airflow range;
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 assembly 111 and the air exhausting assembly 203 is not limited to that described in this embodiment, and the positive pressure generating assembly 111 may be disposed above the oil smoke exhaust port of the air exhausting assembly 203, and it is only necessary to ensure that the air pressure airflow covering region generated by the positive pressure generating assembly 111 and the air pressure airflow covering region generated by the air exhausting assembly 203 can form a continuous air pressure airflow range, that is, the airflows generated between the positive pressure generating assembly 111 and the air exhausting assembly 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 cleaning controller 300 generates positive pressure by controlling the rotation of the positive pressure generating assembly 111 to clean oil dirt attached in the air draft assembly 203.
The positive pressure generating module 111 defines the positive pressure generating rotation direction as positive direction rotation, and defines the negative direction as negative direction;
it should be noted that the rotation definition of the present embodiment is not a forward direction and a reverse direction which are conventionally considered, the direction in the present embodiment is defined according to the design of the blades in the positive pressure generating assembly 111, and the specific structure of the blades is not described again as common knowledge of those skilled in the art.
The cleaning controller 300 specifically controls the steps as follows;
(1): controlling the rotating speed of the air draft assembly 203 to be the lowest rotating speed or keeping the rotating speed unchanged; it should be noted that the keeping of the rotation speed of the air draft assembly 203 in this step is a rotation speed state in which the positive pressure generated by the positive pressure generating assembly is much greater than the negative pressure generated by the air draft assembly 203.
(2): controlling the positive direction rotating speed of the positive pressure generating assembly 111 to be adjusted to the maximum rotating speed and rotating for 5-60 seconds;
(3): stopping the positive-direction rotation of the positive-pressure generating assembly 111 for 1-10 seconds;
(4): repeating the steps (2) and (3) N1 times circularly; n1 is more than or equal to 1, and N1 is a positive integer;
(5): controlling the air draft assembly to stop working, and circularly repeating the steps (2) and (3) for N2 times; n2 is greater than or equal to 1, and N2 is a positive integer.
The inner wall surface and the outer wall surface of the air draft assembly 203 are coated with the oleophobic coating 104; oleophobic coating 104 is provided as a nanocoating.
The cleaning controller 300 is also provided with a backup power supply 301; the cleaning controller 300 model is set to BC630-15075.
The positive pressure generating assembly 111 is provided as a soot separator 100;
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 rotating shaft 101 are connected to one end of the rotating motor 102 and a connecting shaft 120 of the oil smoke separating body, respectively;
the rotating motor 102 is fixedly assembled in the bottom radiation area of the oil smoke suction port of the air draft assembly 203 and is electrically connected with the self-cleaning controller;
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; the outer end face 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 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 the concentric tubes 110 outward from the origin along the x-axis direction as a 1 st concentric tube 110, an i < th >. The i < th >, the n-1 th concentric tube 110 and an n < th > concentric tube 110, 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 110 in the negative y-axis direction is H;
the length of the 1 st concentric tube 110 along the negative direction of the y-axis is H 1 Said i Said 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 ；
Height H of No. 1 concentric tube 110 1 Not more 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 within the concentric tube 110 is D with respect to the x-axis.
The diameter of the end of the inlet 140 within 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);
the diameter of the end of the gas inlet 140 in the 1 st concentric tube 110 is d (1), the diameter of the end of the gas inlet 140 in the i st concentric tube 110 is d (i), the diameter of the end of the gas inlet 140 in the n-1 st concentric tube 110 is d (n-1), and the diameter of the end of the gas 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 baffle 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 absorption baffle is arranged as an annular fan blade 105 which extends outwards along any local area on 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 number of the ring-shaped fan blades 105 is Q, and Q is a positive integer;
q = n in this example;
the ring-shaped fan blades 105 correspond to the concentric tubes 110 one by one and are defined as a first ring-shaped fan blade 105, a second ring-shaped fan blade 105, a ring-shaped fan blade 8230, a ring-shaped fan blade i 105, a ring-shaped fan blade 8230, a ring-shaped fan blade Q-1 105 and a ring-shaped fan blade Q105; 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-shaped fan blade 105 as S1, the area of the second ring-shaped fan blade 105 as S2, \8230: \8230 \ 8230 \ 8230: -Q-1 ring-shaped fan blade 105 as S (Q-1), and the area of the Q-th ring-shaped fan blade 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 generating 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, m is more than or equal to 1, and m is a positive integer;
the other end of the secondary vortex generating assembly 107 in this embodiment is connected to one end of the ring sector 105;
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 greater than or equal to 0 and smaller than the S annular sheet;
the gas collecting ring is arranged at the end part of the gas outlet of the concentric tube 110;
the gas collecting ring is provided with a second arc-shaped sheet 108 extending inwards along the end part of the inner gas 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.
By arranging the gas collecting ring, the gas collecting ring is arranged to be the second arc-shaped sheet 108, and the included angle between the second arc-shaped sheet 108 and the inner gas outlet 130 is set to be P, so that the directional centralized discharge of the oil smoke is formed, the oil smoke is prevented from overflowing, and the oil smoke is secondarily attached to the oil smoke separator 100, thereby further benefiting the self-cleaning function of the oil smoke separator 100.
The air draft assembly 203 is also provided with an oil collecting device 202 and a shell 201; the shell 201 integrally covers the air draft assembly 203 and the oil smoke separator 100 or the sleeve 113 in the shell; an oil collector 202 is mounted at the bottom end of the housing 201.
The oil collector 202 is configured as an oil collecting cup, which is common knowledge of those skilled in the art, and the detailed structure thereof will not be described.
The housing 201 is provided with a plurality of first air inlets 2011 for allowing the lampblack 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 air draft assembly 203 is taken as the lower direction, and the reverse direction of the gravity direction of the air draft 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 sheet 2012 extends towards the inside of the shell 201, and B is more than 0 degree and less than 180 degrees.
N1=5, N2=6 in the present embodiment; through many times of rotation, can make the greasy dirt of adhering to in convulsions subassembly 203 because the air current that the malleation produced and the inertial force effect that the air current produced for the adhesive force of greasy dirt reduces, and through repeated operation, make the adhesive force of greasy dirt reduce to break away from convulsions subassembly 203 along the direction of malleation in the convulsions subassembly 203 after minimum.
N in this embodiment is 3, i.e. 3 concentric tubes 110110 are provided; the length of the 1 st concentric tube 110110 along the negative direction of the y axis is 1 meter, and the length of the 2 nd concentric tube 110110 along the negative direction of the y axis is H 2 The length of the 3 rd concentric tube 110110 along the negative direction of the y-axis is H 3 ，H 1 Has the maximum value of H 3 The value of (d) is minimal;
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; that is, 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 the embodiment, the number of the secondary vortex generating assemblies 107 is 2, one end of each of the 2 secondary vortex generating assemblies 107 is respectively arranged at the end of the inner air inlet 140 of the 2 nd concentric tube 110 and the end of the inner air inlet 140 of the 3 rd concentric tube 110,
defining the outer wall surface of the concentric tube 110 for connecting with the ring-shaped fan 105 as an O1 surface, and defining the end surface of one end of the ring-shaped fan 105 for connecting with the outer wall surface of the concentric tube 110 as an O2 surface;
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 O2 surface of the second ring-shaped fan 105; the two ends of the other secondary vortex generating assembly 107 are respectively connected with the outer wall surface O1 of the 3 rd concentric tube 110 and the O2 surface of the third ring sector 105.
The secondary vortex generating assembly 107 is arranged, and a vortex flow field generated by high-speed rotation of the secondary vortex generating assembly can enable the annular fan piece 105 not to cover the flow guide area of the oil fume flow reintroduced into the annular fan piece 105, so that oil fume is prevented from being attached to the pipe wall of the concentric pipe 110, and meanwhile, the perfect cleaning effect of the range hood in the self-cleaning process is further guaranteed.
This utilize malleation to reach the convulsions subassembly of clean function can carry out seven layers of separation to the oil smoke in the use, finally discharges through the gas outlet again in nearly clean gas. 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 moves downwards separately from the crude oil smoke flow field in the downward inertial motion and is collected in the 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 flow interacts with the adjacent flow field or the vortex flow, a continuously rotating flow field is formed on the first arc sheet 2012, and the rotating vortex flow reaches the maximum vortex amount at this time. The remaining light 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 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, when the remaining lighter oil smoke enters the concentric tube 110, the remaining lighter oil smoke contacts the outermost end of the annular fan blade 105 and then enters the concentric tube 110, the centrifugal force at the outermost end of the annular fan blade 105 can enable a part of fluid or oil smoke particles to be separated or blocked from entering the concentric tube 110 and moving outwards, then the fluid or oil smoke particles are thrown onto the first arc-shaped piece 2012 of the shell 201 at a higher linear cutting speed, and the oil smoke on the first arc-shaped piece is thrown onto the shell 201 again.
Fourth layer separation, inertial separation and centrifugal separation: inertial separation and centrifugal separation: after the third layer 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 105105 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 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 the vortex generating device does not stop rotating, so that the oil smoke is captured and cannot escape from the concentric pipe 110. When the attraction force and the centrifugal force are removed, the oil smoke continuously rotating in the second vortex and moving along the high tangential line on the wall of the concentric tube 110 flows downward along the inner wall of the concentric tube 110 due to gravity.
Sixth layer separation, secondary vortex generation 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 to the oil fume, and simultaneously facilitates the subsequent positive pressure cleaning of a small amount of attached oil stain.
The positive pressure type self-cleaning smoke machine air draft assembly is provided with an air draft assembly, a positive pressure generating assembly capable of rotating and generating positive pressure and a cleaning 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 controller produces the rotation that the subassembly carried out equidirectional through control convulsions subassembly and malleation, 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 make the greasy dirt of originally adhering to in convulsions subassembly surface produce the opposite direction with the adhesive force originally by the drive of air current, 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 positive pressure formula is from clearing up the cigarette machine convulsions subassembly, and is simple in structure, convenient to use's characteristics.
Example 2.
The utility model provides a positive pressure formula self-cleaning cigarette machine convulsions subassembly, other structures are the same with embodiment 1, the difference lies in:
the positive pressure generating component is defined as positive rotation, and the negative rotation is defined as negative rotation.
It should be noted that the rotation definition manner of the present embodiment is not a forward direction and a reverse direction which are conventionally considered, the direction in the present embodiment is defined according to the design of the blade in the positive pressure generating assembly 111, and the specific structure of the blade is not repeated as the common knowledge of the ordinary skilled person in the art.
The control steps of the cleaning controller 300 are as follows;
(1): controlling the rotating speed of the air draft assembly 203 to be the lowest rotating speed or keeping the rotating speed unchanged;
(2): adjusting the positive pressure generating assembly 111 to rotate in the positive direction of the maximum rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating assembly 111 to rotate in the negative direction for 5-60 seconds;
(4): repeating the steps (2) and (3) for N3 times in a circulating manner; n3 is greater than or equal to 1, and N3 is a positive integer.
It should be noted that the keeping of the rotation speed of the air draft assembly 203 in this step means that the rotation speed of the positive pressure generating assembly generating the positive pressure is much higher than the rotation speed of the air draft assembly 203 generating the negative pressure.
N3=5 in this embodiment, produce the subassembly through control malleation and adjust to maximum rotational speed and reverse rotation to through instantaneous reversal, the greasy dirt that adheres to on convulsions subassembly this moment can receive the air current direction of equidirectional not, makes the adhesive force of greasy dirt further reduce, promotes the further separation of greasy dirt and convulsions subassembly, and makes the greasy dirt on the oil smoke separation main part further break away from oil smoke separation main part through repeated rotation repeatedly, finally reaches the purpose of automatically cleaning.
Example 3.
The other structure of the positive pressure type self-cleaning cigarette machine air draft assembly is the same as that of the positive pressure type self-cleaning cigarette machine air draft assembly in any one of the embodiments 1 or 2, and the difference is that:
defining the positive pressure generating component to generate positive pressure to rotate in a positive direction, and defining the positive direction to rotate in a negative direction;
it should be noted that the rotation definition manner of the present embodiment is not a forward direction and a reverse direction which are conventionally considered, the direction in the present embodiment is defined according to the design of the blade in the positive pressure generating assembly 111, and the specific structure of the blade is not repeated as the common knowledge of the ordinary skilled person in the art.
The control steps of the cleaning controller are as follows;
the control steps of the cleaning controller are as follows;
(1): controlling the negative direction rotation of the air draft assembly 203 to the lowest rotation speed or keeping the negative direction rotation speed unchanged;
(2): controlling the positive pressure generating assembly 111 to rotate in the positive direction, adjusting the rotating speed to the maximum rotating speed and keeping the rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating component 111 to rotate in the negative direction for 10 seconds;
(4): repeating the steps (2) and (3) for N3 times in a circulating manner; n3 is more than or equal to 1, and N3 is a positive integer;
(5): controlling the air draft assembly 203 to stop working, and circularly repeating the steps (2) and (3) for N4 times; n4 is greater than or equal to 1, and N4 is a positive integer.
Through the stop in twinkling of an eye and rotation in twinkling of an eye to through combining corotation and the effect of reversal, make the greasy dirt self attached to on the convulsions subassembly produce the biggest inertia, and through the rotation that stops the convulsions subassembly, make the malleation that the malleation produced the production of subassembly reach furthest, thereby make the cleaning performance who produces also reach the biggest, reach further cleaning performance.
Example 4.
The utility model provides a positive pressure formula self-cleaning cigarette machine convulsions subassembly, other structures are the same with embodiment 1-3, the difference lies in: as shown in fig. 11, Q =4, Q ≠ n, n =3, and the ring fan 105 is provided in 4 numbers.
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.
Through increasing an annular fan piece, strengthened the positive pressure intensity that produces, increased the clean dynamics to adnexed greasy dirt on the oil pumping cigarette subassembly, also can not make the second pollution that produces subassembly oneself to the malleation simultaneously, made things convenient for the automatically cleaning operation in later stage.
Example 5.
The other structures of the positive pressure type exhausting component of the self-cleaning cigarette machine are the same as those of any one of the embodiments 1 to 4, and the difference is that as shown in figures 12, 13 and 15, a positive pressure generating component 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 of the first fan 112, the plane diameter of the sleeve 113 where the first mounting shaft 114 is located in the sleeve 113 is R of the sleeve 113, and R of the first fan 112 is less than R of the sleeve 113; the pipe orifice at one end of the sleeve 113 in the direction opposite to the gravity direction is fixedly connected with the oil fume suction port of the air draft assembly 203.
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.
Through producing the subassembly with the malleation and setting up to first fan and sleeve pipe, can guarantee to produce the biggest malleation air current, and the mouth of pipe of sleeve pipe gravity opposite direction one end and the suction oil smoke mouth fixed connection of convulsions subassembly also guarantee from the convulsions subassembly clear up the greasy dirt can, obtain effectual guide, further reduced use cost.
Example 6.
The other structure of the positive pressure type self-cleaning cigarette machine exhaust assembly is the same as that of the embodiment 5, except that, as shown in figure 14 and figure 15,
the diameter of the nozzle at one end of the sleeve 113 in the direction of gravity is smaller than the diameter of the nozzle at one end of the sleeve 113 in the opposite 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 opposite direction of gravity is defined as R2, i.e. R1 is smaller than R2.
The oil smoke that comes out can further be guided the clearance through the mouth of pipe diameter that changes the sleeve pipe both ends, has made things convenient for subsequent clearance.
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 (9)
1. The utility model provides a positive pressure formula self-cleaning cigarette machine convulsions subassembly which characterized in that: automatically cleaning the interior of an air draft assembly of the range hood by generating positive pressure; the cleaning device is provided with an air draft component, a positive pressure generating component which can rotate and generate positive pressure and a cleaning controller;
the cleaning controller generates positive pressure by controlling the rotation of the positive pressure generating assembly to clean oil stains attached to the air draft assembly;
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 oil pumping smoke hole of the air draft assembly;
the positive pressure generating assembly is arranged as an oil fume separator, and 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 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, and a plane coordinate system is established by taking the intersection point of the first plane and the middle shaft of the concentric tube 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 multistage oil fume separation main body is also provided with an oil fume adsorption separation blade which is fixedly assembled on the outer wall surface of the end part of the air inlet in the concentric tube; the oil smoke adsorption retaining 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 multistage oil smoke separation main part still is provided with the secondary vortex and generates the subassembly, the secondary vortex generates the subassembly and sets up to follow the wall of the local arbitrary region of concentric tube is outside and have thickness M along the annular form piece that the negative direction of y axle extends.
2. The positive pressure self-cleaning cigarette machine draft assembly of claim 1, wherein: defining the positive pressure generating component to generate positive pressure to rotate in a positive direction, and defining the positive direction to rotate in a negative direction; the cleaning controller comprises the following control steps;
(1): controlling the rotating speed of the air draft assembly to be the lowest rotating speed or keeping the rotating speed unchanged;
(2): controlling the positive direction rotating speed of the positive pressure generating assembly to be adjusted to the maximum rotating speed and rotating for 5-60 seconds;
(3): stopping the positive direction rotation of the positive pressure generating assembly for 1-10 seconds;
(4): repeating the steps (2) and (3) for N1 times in a circulating manner; n1 is more than or equal to 1, and N1 is a positive integer;
(5): controlling the air draft assembly to stop working, and circularly repeating the steps (2) and (3) for N2 times; n2 is more than or equal to 1, and N2 is a positive integer.
3. The positive pressure self-cleaning cigarette machine draft assembly of claim 1, wherein: defining a positive pressure generating direction of the positive pressure generating assembly as a positive direction rotation; defining the reverse direction of the positive rotation as the negative direction;
the control steps of the cleaning controller are as follows;
(1): controlling the rotating speed of the air draft assembly to be the lowest rotating speed or keeping the rotating speed unchanged;
(2): adjusting the positive pressure generating assembly to rotate in the positive direction of the maximum rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating assembly to rotate in the negative direction for 5-60 seconds;
(4): repeating the steps (2) and (3) for N3 times in a circulating manner; n3 is greater than or equal to 1, and N3 is a positive integer.
4. The positive pressure self-cleaning cigarette machine draft assembly of claim 1, wherein: the positive pressure generating component is used for generating positive pressure, and the positive pressure generating component is used for generating positive pressure;
the control steps of the cleaning controller are as follows;
(1): controlling the negative direction rotation of the air draft assembly to the lowest rotation speed or keeping the negative direction rotation speed unchanged;
(2): controlling the positive pressure generating assembly to rotate in the positive direction, adjusting the rotating speed to the maximum rotating speed and keeping the rotating speed for 5-60 seconds;
(3): controlling the positive pressure generating assembly to rotate in the negative direction for 5-60 seconds;
(4): repeating the steps (2) and (3) for N3 times in a circulating manner; n3 is more than or equal to 1, and N3 is a positive integer;
(5): controlling the air draft assembly to stop working, and circularly repeating the steps (2) and (3) for N4 times; n4 is greater than or equal to 1, and N4 is a positive integer.
5. The positive pressure self-cleaning cigarette machine draft assembly of claim 1, wherein: 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 the 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;
the maximum diameter of the first fan is R first fan, the diameter of a sleeve where a first installation shaft is located in the sleeve is R sleeve, and R first fan is smaller than R sleeve;
the diameter of the pipe orifice in the gravity direction of the sleeve is larger than that of the pipe orifice in the gravity reverse direction of the sleeve; or
The diameter of the pipe orifice in the gravity direction of the sleeve is less than or equal to the diameter of the pipe orifice in the gravity direction of the sleeve.
6. The positive pressure self-cleaning cigarette maker draft assembly of claim 5, 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 The length of the ith concentric tube along the negative direction of the y axis is H i Said n-1 concentric tube has a length H along the negative direction of the y-axis 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 (c) 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 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 annular fan sheets correspond to the concentric pipes one by one and are defined as a first annular fan sheet, a second annular fan sheet, a fan blade of 8230, a fan blade of i ring, a fan blade of 8230, a fan blade of Q-1 ring and a fan blade of Q ring; 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; the area of the first annular fan blade is defined as S1, the area of the second annular fan blade is defined as S2, \8230;, the area of the ith annular fan blade is defined as Si, \8230;, the area of the Q-1 annular fan blade is defined as S (Q-1), and the area of the Q-1 annular fan blade is defined 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 number of the secondary vortex generating assemblies is m, m is more than or equal to 1, and m 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 the gas outlet of the concentric tube;
the gas collecting ring is arranged into a second arc-shaped sheet extending inwards along the y-axis direction of the end part of the gas outlet of the concentric tube; 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.
7. The positive pressure self-cleaning cigarette maker draft assembly of claim 6, wherein:
the inner wall surface and the outer wall surface of the air draft assembly are coated with an oleophobic coating; the oleophobic coating is a nano coating or a Teflon coating;
the air draft assembly is also provided with an 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.
8. The positive pressure self-cleaning cigarette maker draft assembly of claim 7, wherein:
the shell is provided with a plurality of first air inlets used for enabling oil smoke ions to enter the interior of the shell;
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 direction, and the reverse direction of the gravity direction of the air draft assembly is taken as the upper direction;
the oil separation baffle is a first arc-shaped piece which extends towards the inside of the shell along the upper end surface of the first air inlet with an included angle B, and B is more than 0 degree and less than 180 degrees.
9. The positive pressure self-cleaning cigarette maker draft assembly of claim 8, wherein: the cleaning controller is also provided with a standby power supply, and the model of the cleaning controller is set to any one of ARM, DSP and BC630-15075.
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| CN201810187870.2A CN108204623B (en) | 2018-03-07 | 2018-03-07 | Positive pressure type self-cleaning cigarette machine air draft assembly |
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| CN201810187870.2A CN108204623B (en) | 2018-03-07 | 2018-03-07 | Positive pressure type self-cleaning cigarette machine air draft assembly |
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| CN108204623B true CN108204623B (en) | 2023-01-03 |
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