CN108167899B - Resonance type oil fume separation device - Google Patents
Resonance type oil fume separation device Download PDFInfo
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- CN108167899B CN108167899B CN201810187879.3A CN201810187879A CN108167899B CN 108167899 B CN108167899 B CN 108167899B CN 201810187879 A CN201810187879 A CN 201810187879A CN 108167899 B CN108167899 B CN 108167899B
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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
Abstract
A resonance type oil smoke separating device is provided with an oil smoke separator body and a resonance body; the oil fume separator body is provided with a multi-stage oil fume separation main body, a rotating shaft and a rotating motor; the resonance body is provided with a spring, and the spring is provided with a first concave hole; the multi-step oil smoke separation main body is provided with a connecting shaft, an oil smoke adsorption separation blade, an annular fan blade and a secondary vortex generation assembly; in the course of the work, self through the oil smoke separator body is rotatory at a high speed, produces the vortex to oil smoke gas, separates the oil smoke through the vortex, because the one end and the multistage oil smoke separation main part of spring are connected, and the other end is unsettled, can produce certain vibration when rotatory, reaches the same time with the frequency that forms the vortex when the frequency of vibration, can produce resonance, can produce the biggest shake this moment, will condense and throw away at the greasy dirt on surface. The resonance type oil smoke separating device can separate oil smoke from high-concentration oil smoke particles in the using process.
Description
Technical Field
The invention relates to the technical field of oil-smoke separation, in particular to a resonance type oil-smoke separation device.
Background
The range hood is one of the essential appliances in modern families. The range hood is arranged above a gas stove in a kitchen and used for absorbing oil smoke generated during cooking, discharging the oil smoke out of the room and reducing oil smoke pollution in the kitchen. However, when the range hood is used, part of the range hood, such as a wind wheel on the range hood, can be covered by high-concentration oil smoke; the absorbed oil smoke can reduce the oil smoke suction function and cause noise problems due to resonance and the like, thereby affecting the overall performance of the range hood.
Therefore, it is necessary to provide a resonant oil-smoke separating device to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provide a resonance type oil-smoke separating device which can separate oil-smoke particles with high concentration in the using process and throw oil stains out by utilizing the resonance principle.
The above object of the present invention is achieved by the following technical means.
The resonance type oil fume separating device is provided with an oil fume separator body and a resonance body with elastic potential energy;
the resonance body is arranged on the oil fume separator body.
The oil fume separator body is provided with a multi-stage oil fume separation main body, a rotating shaft and a rotating motor;
the two ends of the rotating shaft are respectively connected with the multi-stage oil fume separation main body and the rotating motor.
The resonance body is arranged as an elastic piece; the minimum elastic potential energy of the elastic part is more than 0; one end of the elastic piece is connected with the multi-stage oil fume separation main body, and the other end of the elastic piece is suspended in the air;
the elastic piece is a spring; the natural frequency of the spring is f s ；
Wherein:
d coil Diameter of coil
D Spring : diameter of spring
G shear modulus
n T Bus turns.
The outer wall surface of the spring is covered with a cooling condensation layer;
the cooling condensation layer is arranged as a metal coating or a ceramic coating;
the spring is also provided with F first concave holes which are inwards concave to the outer wall surface of the spring, and F is more than or equal to 1,F which is a positive integer;
the maximum concave distance of the first concave hole is D Inner concave ，2V≥D Inner concave Is greater than 0; the maximum aperture of the first concave hole is D Pore diameter ，D Pore diameter ＞0，D Spring ≥D Pore diameter ；
Defining the connecting end of the spring and the multi-stage oil smoke separation main body as a starting end;
the relative distance between the springs from the starting end to the other end is L Initiation Domain Outer wall surface of the regionAn oleophobic coating;
the oleophobic coating is a nano coating or a Teflon coating;
D spring ＞L Initiation Domain ＞0。
The oleophobic coating is also attached to the surface of the multi-stage oil-fume separation main body; the oleophobic coating is arranged to be a nano coating or a Teflon coating.
The multistage oil smoke separation main body is provided with a plurality of concentric tubes and connecting shafts, wherein the center axes of the concentric tubes are superposed, and the connecting shafts are fixedly connected with one ends of the concentric tubes respectively;
defining a horizontal plane where the connecting ends of the concentric tubes and the connecting shaft are located as a first plane; establishing a plane coordinate system by taking the circle center of the first plane as an origin, taking the middle axis of the concentric tube as a y axis, taking the gravity direction as a y axis negative direction, and taking the gravity reverse direction 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;
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 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;
defining one end of the concentric tube, which is connected with the connecting shaft, as an air outlet, and defining the other end of the concentric tube as an air inlet; the diameter of the end part of the air outlet of the concentric tube is D relative to the x axis;
the diameter of the end of the concentric tube inlet is d relative to the x axis;
the diameter of the gas outlet end of the 1 st concentric tube is D (1), the gas outlet end of the ith concentric tube is D (i), the diameter of the gas outlet end of the nth-1 concentric tube is D (n-1), and the diameter of the gas outlet end of the nth concentric tube is D (n);
the diameter of the inlet end of the 1 st concentric tube is d (1), the diameter of the inlet end of the ith concentric tube is d (i), the diameter of the inlet end of the nth-1 concentric tube is d (n-1), and the diameter of the inlet end of the nth 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 lampblack adsorption separation blade is fixedly assembled on an annular fan blade extending outwards from the outer wall surface of any region of 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-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 … … 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 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 to be an annular sheet which faces outwards along the wall 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 not less than 1,m and is a positive integer;
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 S Hollowed-out area The area of the annular sheet is S Ring-shaped sheet ，0≤S Hollowed-out area ＜S Ring-shaped 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 gas collecting ring is arranged at the end part of the gas outlet of the concentric tube;
the gas collecting ring is a second arc-shaped piece 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;
a projection direction along the positive axis direction of the y axis is taken as a positive projection, a projection direction along the negative axis direction of the y axis is taken as a negative projection, and the positive projection area of the concentric tube is larger than the positive projection area of the spring; the negative projection area of the concentric tube is larger than that of the spring; y springs are arranged, and Y is not less than 1,Y and is a positive integer.
The invention discloses a resonance type oil smoke separating device which is provided with an oil smoke separator body and a resonance body; the oil fume separator body is provided with a multi-stage oil fume separation main body, a rotating shaft and a rotating motor; the resonance body is provided with a spring, and the spring is provided with a first concave hole; the multi-step oil-smoke separation main body is provided with a connecting shaft, an oil-smoke adsorption separation blade, an annular fan blade and a secondary vortex generation assembly; in the course of the work, self through the oil smoke separator body is rotatory at a high speed, produces the vortex to the oil smoke gas, separates the oil smoke through the vortex, because one end and the multistage oil smoke separation main part of spring are connected, and the other end is unsettled, can produce certain vibration when rotatory, reaches the same time with the frequency that forms the vortex when the frequency of vibration, can produce the resonance, can produce the biggest shake this moment, will condense the greasy dirt on the surface and throw away. The resonance type oil smoke separating device can separate oil smoke from high-concentration oil smoke particles in the using process.
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 structural diagram of a resonant oil-smoke separation device according to the present invention.
Fig. 2 is a sectional view of a portion a of fig. 1.
Fig. 3 is a sectional view of the portion B of fig. 1.
Fig. 4 is a cross-sectional view of the first pocket of fig. 1.
Fig. 5 is a schematic mechanism diagram of a resonant type oil smoke separation device in embodiment 1 of the present invention.
Fig. 6 is a sectional view of the portion f of fig. 5.
Fig. 7 is a plan view of the soot separating body in embodiment 1 of the present invention.
Fig. 8 is a perspective view of the soot separating body in embodiment 1 of the present invention.
Fig. 9 is a schematic mechanism diagram of the oil smoke separating body in embodiment 1 of the present invention.
Fig. 10 is a perspective view schematically showing the structure of the soot separating body in embodiment 1 of the present invention.
Fig. 11 is a schematic structural view of an oil smoke separating body in embodiment 2 of the present invention.
Fig. 12 is a perspective view structure schematic diagram of a soot separation body in embodiment 2 of the present invention.
In fig. 1 to 12, there are included:
a fume separator 100,
A rotating shaft 101, a rotating motor 102, and a multi-step oil smoke separation body 103;
an oleophobic coating 104; an annular sector 105; a through hole 106;
the secondary vortex generating assembly 107, the arc-shaped sheet 108, the concentric tube 110, the connecting shaft 120, the air outlet 130 and the air inlet 140;
a resonance body 300, a spring 301, a cooling condensation layer 302, and a first recess 303.
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A resonant oil smoke separating device, as shown in fig. 1 to 10, which is provided with an oil smoke separator 100 body, a resonant body 300 with elastic potential energy;
wherein, the resonance body 300 is disposed on the oil smoke separator 100 body.
Wherein, the oil smoke separator 100 body is provided with a multi-stage oil smoke separation main body 103, a rotating shaft 101 and a rotating motor 102;
both ends of the rotating shaft 101 are connected to the multi-step soot separation body 103 and the rotating motor 102, respectively.
Wherein the resonance body 300 is provided as an elastic member; the minimum elastic potential energy of the elastic part is more than 0; one end of the elastic element is connected with the oil smoke separator 100 body, and the other end is suspended in the air;
wherein, the elastic member is provided as a spring 301; the natural frequency of the spring 301 is f s ；
Wherein:
d coil : diameter of coil
D Spring : diameter of spring
G: shear modulus
n T : the number of bus turns.
The first natural frequency of the coil of the spring 301 can be obtained by a concept similar to a long rod:
K spring rate
ρ: density of material
Vol: volume of
m Bullet : spring quality
The stiffness of the spring 301 can be further described in terms of the shear modulus, geometry, and effective coil count of the spring 301
Meanwhile, the volume of the spring 301 may be expressed as
Thus, the first natural frequency of the coil of spring 301 can be modified to be:
wherein:
d coil Diameter of coil
D Spring Diameter of spring
G shear modulus
n T : the number of bus turns.
Wherein the frequency of vortex shedding can be described as
St: stratelauhah number
U fluid flow rate
When the first natural frequency of the spring 301 is close to the frequency of vortex shedding, the spring 301 resonates, i.e. the spring 301 resonates
f s ≈f v
Wherein, the outer wall surface of the spring 301 is covered with a cooling condensation layer 302;
wherein the cooling condensate layer 302 is provided as a metal coating; the metal coating mainly aims at enabling oil smoke in the air to be condensed on the metal coating under the action of sudden temperature change, and as common knowledge of persons skilled in the art, the metal material can be selected from copper or alloy or other materials of different materials, so details are not repeated as common knowledge of persons skilled in the art.
Wherein the spring 301 is also provided with F first concave holes 303 which are concave in the outer wall surface of the spring 301, and F is more than or equal to 1,F which is a positive integer; in this embodiment, F is 2, and it is specifically described that, in actual use, it can be changed randomly according to the use requirement.
Wherein the maximum indent distance of the first indent 303 is D indent, 2V is more than or equal to D indent > 0; the maximum aperture of the first concave hole 303 is D aperture, and the D aperture is more than 0,D Spring The aperture is more than or equal to D;
the connecting end of the spring 301 and the multi-step oil smoke separation main body 103 is defined as a starting end; the relative distance between the spring 301 from the starting end to the other end is L Initiation Domain The outer wall of the region is coated with an oleophobic coating 104; d Spring ＞L Initiation Domain ＞0。
Y springs 301 are provided, Y is not less than 1,Y is a positive integer, Y =6 in the embodiment specifically means that Y is not only 6, but also can be set to values of 1, 2, 3, 4 and the like according to actual needs, each spring 301 only needs to keep a certain distance, and the fact that the natural frequency f is kept between the swinging springs 301 is not influenced when the swinging springs are used is ensured s And the local area can be kept to shake back and forth, and as the common general knowledge of those skilled in the art, the specific setting manner is not described in detail.
When the oil smoke particle in the air when getting rid of the oil body, can make the oil smoke produce condensing in getting rid of oil body surface through the cooling condensation layer 302 of outer wall, in the process of recondensing again, because be provided with 2 first shrinkage pools 303, make the outer wall that gets rid of the oil body have produced unevenness's outer wall, the condensation area to the oil smoke particle has been increased, when condensing the oil smoke and getting rid of oil body surface formation certain degree, the oil smoke that condenses on the body of getting rid of makes the gravitational potential energy who gets rid of the oil body increase, the back and forth motion about producing, and then throw away the oil smoke, make the back and forth motion further increase through starting the driving piece, and the use effect is enhanced.
The oleophobic coating 104 is also attached to the multi-step soot separation body 103 surface; wherein the oleophobic coating 104 is provided as a nanocoating or a teflon coating.
The multi-stage oil fume separation main body 103 is provided with a plurality of concentric tubes 110 with coincident center axes and a connecting shaft 120, and the connecting shaft 120 is fixedly connected with one end of each of the concentric tubes 110;
a horizontal plane where the connection ends of the concentric tubes 110 and the connection shaft 120 are located is defined as a first plane; establishing a plane coordinate system by taking the circle center of the first plane as an origin, taking the middle axis of the concentric tube 110 as a y axis, taking the gravity direction as a y axis negative direction, and taking the gravity reverse direction 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;
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 st 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 ,., 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 (c) is minimal;
therein, 1.1H n ≤H i ≤10H n And 0.5H i-1 ≤H i ≤3H i-1 (ii) a 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 air outlet 130, and defining the other end of the concentric tube 110 as an air inlet 140; the diameter of the end of the outlet 130 of the concentric tube 110 is D relative to the x-axis;
the diameter of the end of the inlet 140 of the concentric tube 110 is d with respect to the x-axis;
wherein, the diameter of the end part of the air outlet 130 of the 1 st concentric tube 110 is D (1),... The diameter of the end part of the air outlet 130 of the i st concentric tube 110 is D (i),... The diameter of the end part of the air outlet 130 of the n-1 st concentric tube 110 is D (n-1), and the diameter of the end part of the air outlet 130 of the n th concentric tube 110 is D (n);
wherein, the diameter of the end part of the inlet 140 of the 1 st concentric tube 110 is d (1), the diameter of the end part of the inlet 140 of the i st concentric tube 110 is d (i), the diameter of the end part of the inlet 140 of the n-1 st concentric tube 110 is d (n-1), and the diameter of the end part of the inlet 140 of the n th 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)。
in this embodiment n is 3, i.e. 3 concentric tubes 110 are provided.
The length of the 1 st concentric tube 110 along the negative direction of the y-axis is 1 meter, and the length of the 2 nd concentric tube 110 along the negative direction of the y-axis is H 2 The length of the 3 rd concentric tube 110 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;
wherein, the multi-stage oil fume separation main body 103 is also provided with an oil fume adsorption separation blade; the oil fume absorption baffle is fixedly assembled on an annular fan 105 extending outwards from the outer wall surface of any area of the concentric tube 110;
wherein, the included angle between the plane of the annular fan sheet 105 and the y axis is A, 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;
in this embodiment, Q is 3, and the annular fan blades 105 can increase the adsorption capacity to the oil smoke and also play a role in guiding the oil smoke.
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 105105; 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.
The ring-shaped fan sheets 105 are in one-to-one correspondence with the concentric tubes 110 and are defined as a first ring-shaped fan sheet 105, a second ring-shaped fan sheet 105, a … … ith ring-shaped fan sheet 105 … …, a Q-1 ring-shaped fan sheet 105 and a Q ring-shaped fan sheet 105; and i is more than or equal to 2 and less than or equal to Q, and Q is a positive integer;
wherein the area of the ring sector 105 is S; defining the area of the first ring-shaped fan piece 105 as S1, the area of the second ring-shaped fan piece 105 as S2, … … defining the area of the ith ring-shaped fan piece 105 as Si, … … the area of the Q-1 ring-shaped fan piece 105 as S (Q-1), and the area of the Q-th ring-shaped fan piece 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);
wherein the ring sector 105 is further 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。
Wherein, the multi-order oil fume separation main body 103 is also provided with a secondary vortex generating component 107;
the secondary vortex generating assembly 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;
wherein, the number of the secondary vortex generating assemblies 107 is m, and m is not less than 1,m and is a positive integer;
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;
wherein the area of the hollow area is S Hollowed-out area The area of the annular sheet is S Ring shape Tablet, 0. Ltoreq. S Hollowed-out area ＜S Ring-shaped sheet ；
Wherein, the plane of the secondary vortex generating component 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 secondary vortex generating assembly 107 is arranged to generate a vortex flow field through high-speed rotation of the secondary vortex generating assembly, so that the annular fan blades 105 are not covered on the flow guide area of the oil fume flow reintroduced into the annular fan blades 105, oil fume is prevented from attaching to the wall of the concentric tube 110, and a perfect oil fume separation effect can be achieved when the oil fume separator 100 is used.
Wherein, the gas collecting ring is arranged at the end part of the gas outlet 130 of the concentric tube 110;
the gas collecting ring is provided with a second arc-shaped sheet 108 which extends inwards along the end part of the gas outlet 130 of the concentric tube 110 towards the y axis; 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 arc-shaped piece 108, and the arc-shaped piece 108 and the gas outlet 130130 are arranged to form an included angle of P, so that the oil smoke is directionally and intensively discharged, the oil smoke is not overflowed, and the oil smoke is secondarily attached to the oil smoke separator 100.
The projection direction along the positive axis direction of the y axis is taken as the positive projection, the projection direction along the negative axis direction of the y axis is taken as the negative projection, and the positive projection area of the concentric tube 110 is larger than that of the spring 301; the negative projected area of the concentric tube 110 > the negative projected area of the spring 301.
The oil-smoke separator 100 can separate oil smoke by five layers in the using process, and finally, almost clean gas is discharged through the gas outlet 130. These five-layer separations are specifically as follows:
first 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 sheet 105 and then enters the concentric tube 110 when entering the concentric tube 110, and the centrifugal force at the outermost end of the ring-shaped fan sheet 105 can lead part of the fluid or the oil smoke particles to be separated or blocked from entering the concentric tube 110 and move outwards, and then the fluid or the oil smoke particles are thrown out at a high tangential speed.
Second layer separation, inertial separation and centrifugal separation: after the first layer separation, the remaining oil fume 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 downwards 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 velocity due to the centrifugal force effect.
Third 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, fluid or particles in the tube move towards the wall of the tube in the concentric tube 110 under the action of centrifugal force in a low-pressure area, 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 pipeline. When the attraction force and the centrifugal force are removed, the oil smoke which continuously rotates from the secondary vortex and moves at the high tangent line of the pipe wall flows downwards along the inner pipe wall due to the gravity.
Fourth 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.
Fifth layer separation, resonance separation: after the first four layers of separation, a small amount of very light oil smoke particles are left to rotate along with the generated vortex in the inner part and keep consistent with the vibration frequency of the vortex, when passing through the spring 301, the particles can be firstly attached to the outer wall surface of the spring 301, when the spring 301 resonates with the vortex or the oil smoke separation body, the particles can shake up and down maximally, then the oil smoke is thrown out, the thrown-out oil smoke can be thrown out again along with the centrifugal force and the negative pressure generated by the oil smoke separation device, and finally, almost clean gas is discharged outside through the gas outlet 130.
The invention discloses a resonance type oil smoke separating device which is provided with an oil smoke separator body and a resonance body; the oil fume separator body is provided with a multi-stage oil fume separation main body, a rotating shaft and a rotating motor; the resonance body is provided with a spring, and the spring is provided with a first through hole; the multi-step oil-smoke separation main body is provided with a connecting shaft, an oil-smoke adsorption separation blade, an annular fan blade and a secondary vortex generation assembly; in the course of the work, self through the oil smoke separator body is rotatory at a high speed, produces the vortex to the oil smoke gas, separates the oil smoke through the vortex, because one end and the multistage oil smoke separation main part of spring are connected, and the other end is unsettled, can produce certain vibration when rotatory, reaches the same time with the frequency that forms the vortex when the frequency of vibration, can produce the resonance, can produce the biggest shake this moment, will condense the greasy dirt on the surface and throw away. The resonance type oil smoke separating device can separate oil smoke from high-concentration oil smoke particles in the using process.
Example 2.
A resonant type oil smoke separation device, the other structures of which are the same as those of embodiment 1, is different in that, as shown in fig. 11 and 12, Q =4,Q ≠ n, n =3, and 4 ring-shaped fan pieces 105 are provided.
The redundant one ring-shaped fan 105 is arranged on the outer wall surface of any local area of the 1 st concentric tube 110110 between the inlet 140 of the 2 nd concentric tube 110 and the inlet 140 of the 1 st concentric tube 110110 along the negative direction of the y axis.
Through increasing an annular fan piece 105, increased the dynamics of throwing away to the oil smoke in later stage oil smoke separation process, also increased this device simultaneously to the adsorption efficiency of oil smoke, also avoided the greasy dirt to adhere to the outer wall surface in the 1 st concentric tube 110 area between the air inlet 140 of 2 nd concentric tube 110 and the 1 st concentric tube 110 air inlet 140 simultaneously, made things convenient for the automatically cleaning operation in later stage.
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 to 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. A resonance type oil smoke separator which is characterized in that: the oil fume separator is provided with an oil fume separator body and a resonance body with elastic potential energy; the resonance body is arranged on the oil fume separator body;
the oil fume separator body is provided with a multi-stage oil fume separation main body, a rotating shaft and a rotating motor; two ends of the rotating shaft are respectively connected with the multi-stage oil fume separation main body and the rotating motor;
the resonance body is provided with an elastic piece, the minimum elastic potential energy of the elastic piece is more than 0, one end of the elastic piece is connected with the multi-stage oil fume separation main body, and the other end of the elastic piece is suspended in the air; the elastic piece is arranged as a spring;
the spring is provided with F first concave holes which are concave in the outer wall surface of the spring, and F is not less than 1,F and is a positive integer.
2. The resonant soot separation device of claim 1, wherein: the natural frequency of the spring is f s ；
Wherein:
d coil Diameter of coil
D Spring Diameter of spring
G shear modulus
n T Bus turns.
3. The resonant soot separation device of claim 2, wherein: the outer wall surface of the spring is covered with a cooling condensation layer; the cooling and condensing layer is provided with a metal coating or a ceramic coating.
4. The resonant soot separation device according to claim 3, wherein:
the maximum concave distance of the first concave hole is D Inner concave ，2V≥D Inner concave Is greater than 0; the maximum aperture of the first concave hole is D Pore diameter ，D Pore diameter ＞0，D Spring ≥D Pore diameter ；
Defining the connecting end of the spring and the multi-stage oil smoke separation main body as a starting end;
the relative distance from the starting end to the other end of the spring is L Initiation Domain The outer wall surface of the area is coated with an oleophobic coating;
D spring ＞L Initiation Domain Is greater than 0; the oleophobic coating is also attached to the multi-stage oil fume separation main body surface; the oleophobic coating is provided as a nano-coating or a Teflon coating.
5. The resonant soot separation device of claim 4, wherein: the multistage oil smoke separation main body is provided with a plurality of concentric tubes with center axes coincident with each other and a connecting shaft, and the connecting shaft is fixedly connected with one end of each of the concentric tubes;
defining a horizontal plane where the connecting ends of the concentric tubes and the connecting shaft are located as a first plane; establishing a plane coordinate system by taking the circle center of the first plane as an origin, taking the central axis of the concentric tube as a y axis, taking the gravity direction as a y axis negative direction, and taking the gravity reverse direction 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;
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 air outlet, and defining the other end of the concentric tube as an air inlet; the diameter of the end part of the air outlet of the concentric tube is D relative to the x axis;
the diameter of the end of the concentric tube inlet is d relative to the x axis;
the diameter of the gas outlet end of the 1 st concentric tube is D (1), the diameter of the gas outlet end of the ith concentric tube is D (i), the diameter of the gas outlet end of the n-1 st concentric tube is D (n-1), and the diameter of the gas outlet end of the n-1 st concentric tube is D (n);
the diameter of the end part of the air inlet of the 1 st concentric tube is d (1), the diameter of the end part of the air inlet of the ith concentric tube is d (i), the diameter of the end part of the air inlet of the n-1 th concentric tube is d (n-1), and the diameter of the end part of the air inlet of the n-1 th 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)。
6. the resonant soot separation device of claim 5, wherein: 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 an annular fan blade extending outwards from the outer wall surface of any area of 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.
7. The resonant soot separation device of claim 6, wherein: 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 a first annular fan sheet as S1, the area of a second annular fan sheet as S2, … … defining the area of an ith annular fan sheet as Si, … … Q-1 annular fan sheet as S (Q-1), and the area of a Q < th > annular fan sheet 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。
8. The resonant soot separation device of claim 7, wherein: 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 outward along the wall surface of any local area of the concentric tube and is provided with an annular sheet with a thickness M extending 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;
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 S Hollowed-out area The area of the annular sheet is S Ring-shaped sheet ，0≤S Hollowed-out area ＜S Ring-shaped 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.
9. The resonant soot separation device of claim 8, wherein: 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;
taking the projection direction along the positive axis direction of the y axis as a positive projection, and taking the projection direction along the negative axis direction of the y axis as a negative projection, wherein the positive projection area of the concentric tube is larger than the positive projection area of the spring; the negative projection area of the concentric tube is larger than that of the spring; y springs are arranged, and Y is not less than 1,Y and is a positive integer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810187879.3A CN108167899B (en) | 2018-03-07 | 2018-03-07 | Resonance type oil fume separation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810187879.3A CN108167899B (en) | 2018-03-07 | 2018-03-07 | Resonance type oil fume separation device |
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| CN107747750A (en) * | 2017-10-25 | 2018-03-02 | 南京师范大学 | Dining room waste heat recovery lampblack absorber based on oscillating heat pipe |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2181616C1 (en) * | 2001-03-22 | 2002-04-27 | Курский государственный технический университет | Air filter |
| CN102022768A (en) * | 2010-12-30 | 2011-04-20 | 成都盛尔嘉科技有限公司 | Oil-fume separator |
| CN103225833A (en) * | 2013-05-14 | 2013-07-31 | 杨帆 | Spiral-flow type exhaust fan for kitchen |
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| CN108167899A (en) | 2018-06-15 |
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