CN114431809A - Cyclone separator - Google Patents
Cyclone separator Download PDFInfo
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- CN114431809A CN114431809A CN202011225072.8A CN202011225072A CN114431809A CN 114431809 A CN114431809 A CN 114431809A CN 202011225072 A CN202011225072 A CN 202011225072A CN 114431809 A CN114431809 A CN 114431809A
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- 239000007788 liquid Substances 0.000 claims abstract description 149
- 238000000926 separation method Methods 0.000 claims abstract description 69
- 239000000203 mixture Substances 0.000 claims abstract description 36
- 239000010865 sewage Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 238000005192 partition Methods 0.000 claims description 38
- 238000005406 washing Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 7
- 238000004851 dishwashing Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010992 reflux Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 241000219315 Spinacia Species 0.000 description 4
- 235000009337 Spinacia oleracea Nutrition 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4206—Tubular filters
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a cyclone separator, which comprises a cyclone generator, a dirt collecting box and a return pipe, wherein the cyclone generator is used for enabling a solid-liquid mixture entering the cyclone generator to generate cyclone, further carrying out primary solid-liquid separation on the solid-liquid mixture, wherein the sewage collecting box is communicated with the vortex generator and is used for receiving bottom flow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, and the underflow liquid is subjected to secondary solid-liquid separation, one end of a return pipe is communicated with the vortex generator, the other end of the return pipe is communicated with the sewage collecting box, is used for refluxing the underflow liquid after the secondary solid-liquid separation to the vortex generator and mixing the underflow liquid with overflow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, so that the separated solid can be precipitated at the bottom of the sewage collecting box, the separated liquid overflows, so that solid-liquid separation is realized, and the separation effect on the solid and the liquid with small density difference is better.
Description
Technical Field
The invention relates to the field of solid-liquid separation devices, in particular to a cyclone separator.
Background
At present, the cyclone separator is generally used for separating solids such as water, silt and the like, and the silt is easy to separate from the water under the action of centrifugal force due to the large density difference of the water and the silt and falls to the bottom of the cyclone separator under the action of gravity, so that solid-liquid separation is realized.
The inventor of the present application found in long-term research and development that in other fields, such as a dishwasher and the like, during a washing process, a large amount of pollutant particles with a density slightly larger than that of water and a shape of a sheet are generated, a filter screen is easily blocked when solid-liquid separation is performed through the filter screen, and a good separation effect cannot be achieved when solid-liquid separation is performed through a current cyclone separator.
Disclosure of Invention
The invention provides a cyclone separator, which aims to solve the technical problem of poor solid-liquid separation effect in electric appliances such as dish-washing machines and the like in the prior art.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a cyclone separator, including:
the swirl generator is used for generating swirl to the solid-liquid mixture entering the swirl generator so as to perform primary solid-liquid separation on the solid-liquid mixture;
the sewage collecting box is communicated with the vortex generator and is used for receiving the bottom flow liquid formed by the solid-liquid mixture after primary solid-liquid separation and carrying out secondary solid-liquid separation on the bottom flow liquid;
and one end of the return pipe is communicated with the swirl generator, and the other end of the return pipe is communicated with the sewage collecting box and is used for returning the underflow liquid after secondary solid-liquid separation to the swirl generator and mixing the overflow liquid formed after primary solid-liquid separation of the solid-liquid mixture.
In a specific embodiment, the vortex generator includes a first diversion section and a second diversion section, the first diversion section is disposed in a cylindrical shape, the second diversion section is disposed in a tapered shape, the diameter of the second diversion section is gradually reduced toward a direction close to the dirt collecting box, and the dirt collecting box is connected to one end of the second diversion section away from the first diversion section.
In a specific embodiment, the diameter of the first flow guiding section is D1, and the diameter of the return pipe is D2, wherein 0.03 × D1< D2<0.1 × D1.
In a specific embodiment, one end of the return pipe connected with the swirl generator extends into the second flow guiding section, the height of the second flow guiding section in the axial direction is H1, the projection height of the return pipe in the direction perpendicular to the axial direction of the swirl generator is H2, the projection length of the part of the return pipe extending into the second flow guiding section in the axial direction of the swirl generator is L1, and the diameter of the connection between the second flow guiding section and the return pipe is D3, wherein 0.5 x H1< H2< H1, and 0.25 x D3< L1<0.5 x D3.
In a specific embodiment, the cyclone separator further comprises a blocking mechanism, and the blocking mechanism is arranged in the dirt collecting box and used for reducing disturbance of the cyclone to the dirt collecting box.
In a specific embodiment, the blocking mechanism comprises a baffle plate, the baffle plate is arranged opposite to a port of the swirl generator, which is communicated with the dirt collecting box, along the axial direction of the swirl generator, the diameter of the port is D4, the length of the baffle plate along the vertical direction of the axial direction of the swirl generator is D5, and the diameter of the dirt collecting box is D6, wherein D5> 4D 4, and D6> 6D 4.
In a specific embodiment, the blocking mechanism further includes a first annular partition plate disposed on the top wall of the dirt collecting box and a second annular partition plate disposed on the bottom wall of the dirt collecting box, the first annular partition plate extends toward the bottom wall, the second annular partition plate extends toward the top wall, the first annular partition plate and the second annular partition plate are disposed along the radial interval of the vortex generator, and the projections of the first annular partition plate and the second annular partition plate in the radial direction of the vortex generator at least partially overlap.
In a specific embodiment, the height of the projection overlapping part of the first annular partition and the second annular partition in the radial direction of the swirl generator along the axial direction of the swirl generator is H3, wherein H3>10 mm.
In a specific embodiment, the cyclone separator further comprises an overflow pipe penetrating through a top wall of the swirl generator, and the return pipe is connected to a portion of the overflow pipe located inside the swirl generator or connected to a portion of the overflow pipe located outside the swirl generator.
In a specific embodiment, the cyclone separator further comprises an annular partition plate connected between the top wall and the bottom wall of the dirt collecting box, and a plurality of through holes are formed in the annular partition plate and communicated with the return pipe.
In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a dish washing apparatus, comprising:
a housing;
a washing pump disposed in the housing for pumping washing water;
a spray pipe disposed in the housing and in communication with the wash pump for receiving the wash water to spray the wash water onto the dishes within the housing;
the water receiving tray is arranged in the shell, is positioned at the bottom of the tableware and is used for collecting the washing water after the tableware is sprayed;
the cyclone separator is arranged in the shell, is communicated with the water receiving disc and is used for receiving the washing water sprayed with the tableware and carrying out solid-liquid separation on the washing water;
wherein, the cyclone separator is the cyclone separator.
The cyclone separator comprises a cyclone generator, a dirt collecting box and a return pipe, wherein the cyclone generator is used for enabling a solid-liquid mixture entering the cyclone generator to generate cyclone, further carrying out primary solid-liquid separation on the solid-liquid mixture, wherein the sewage collecting box is communicated with the vortex generator and is used for receiving bottom flow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, and the underflow liquid is subjected to secondary solid-liquid separation, one end of a return pipe is communicated with the vortex generator, the other end of the return pipe is communicated with the sewage collecting box, is used for refluxing the underflow liquid after the secondary solid-liquid separation to the vortex generator and mixing the underflow liquid with overflow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, so that the separated solid can be precipitated at the bottom of the sewage collecting box, the separated liquid overflows, so that solid-liquid separation is realized, and the separation effect on the solid and the liquid with small density difference is better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a prior art cyclone separator;
FIG. 2 is a schematic cross-sectional view of a prior art cyclone separator;
FIG. 3 is a schematic perspective view of a cyclone separator according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an embodiment of a cyclone separator of the present invention;
FIG. 5 is a schematic side view of a cyclone separator according to an embodiment of the invention;
FIG. 6 is a schematic cross-sectional view taken along A-A of FIG. 3;
FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 3;
FIG. 8 is a schematic cross-sectional view of another embodiment of a cyclonic separator according to the invention;
FIG. 9 is a schematic perspective view of another embodiment of a cyclonic separator of the present invention;
FIG. 10 is a schematic cross-sectional view of another embodiment of a cyclonic separator of the present invention;
FIG. 11 is a schematic perspective view of another embodiment of a cyclonic separator according to the present invention;
FIG. 12 is a schematic cross-sectional view of another embodiment of a cyclonic separator of the present invention;
FIG. 13 is a schematic perspective view of another embodiment of a cyclonic separator of the present invention;
FIG. 14 is a schematic cross-sectional view of another embodiment of a cyclonic separator of the present invention;
FIG. 15 is a schematic diagram of the structure of an embodiment of the dishwashing appliance of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The terms "first" and "second" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. While the term "and/or" is merely one type of association that describes an associated object, it means that there may be three types of relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Referring to fig. 1 and 2, currently, a cyclone separator 1 is generally applied to the field of industrial solid-liquid separation, such as separation of water and silt, and due to the large density difference between water and silt, silt is easily separated to a large radius at the periphery under the action of centrifugal force and descends to the bottom of the cyclone separator under the action of gravity, so as to realize solid-liquid separation. The cyclone separator 1 is generally provided with a underflow port 11, and no matter whether the underflow port 11 has underflow flow, silt separated from water easily sinks to the bottom of the cyclone separator, and then can be intermittently or continuously discharged through the underflow port 11, so that the solid-liquid separation effect is good. In the field of solid-liquid separation of life, for example, in the application of a dishwasher, a solid-liquid mixture formed by mixing solid particles with small density difference and liquid is generated, the solid particles are in a sheet shape and have a large flat ratio, the centrifugal force applied to the solid particles is weak, the drag force and the pressure gradient force are increased, and the number of the solid particles separated to the large radius part of the periphery is small. And depending on whether or not there is an underflow flow, there are two cases: 1) the underflow port 11 has a small flow rate, and particles at the periphery with a large radius can flow out along with descending underflow liquid, so that solid particles can be separated from a solid-liquid mixture, but a part of the underflow liquid flows out from the underflow port 11 at the same time, and the loss of the underflow liquid can be caused; 2) the underflow port 11 is closed, underflow does not exist, solid particles at the large radius part of the periphery cannot descend under the action of gravity because the density of the solid particles is only slightly greater than that of liquid, the solid particles all flow out of the overflow port 12 and cannot be separated from a solid-liquid mixture, and the conventional cyclone separator 1 fails.
In the field of solid-liquid separation of living goods such as dish-washing machines and the like, solid-liquid separation is generally realized by a filter screen, but the filter screen is easy to block and needs to be manually cleaned, and the filtering effect cannot be realized on solid particles smaller than the mesh size. And the application of the cyclone separator 1 can solve the problems of filter screen blockage and low filtering efficiency of small solid particles. However, in the case of a dishwasher or the like, in which the cyclone separator 1 is used, the underflow port 11 needs to be completely closed, that is, in the case of the above-described non-underflow condition, the conventional cyclone separator 1 cannot perform solid-liquid separation because water is not allowed to be simultaneously discharged during washing in order to reduce water consumption.
Referring to fig. 3 and 4, the cyclone separator 10 of the present invention comprises a cyclone generator 110, a dirt collecting box 120 and a return pipe 130, wherein the cyclone generator 110 is used for generating cyclone flow of the solid-liquid mixture entering the cyclone generator 110, further carrying out solid-liquid separation on the solid-liquid mixture for one time, the dirt collecting box 120 is communicated with the vortex generator 110, used for receiving the underflow liquid formed by the solid-liquid mixture after the primary solid-liquid separation and carrying out the secondary solid-liquid separation on the underflow liquid, one end of the return pipe 130 is communicated with the swirl generator 110, the other end is communicated with the sewage collecting box 120, used for refluxing the underflow liquid after the secondary solid-liquid separation to the swirl generator 110 and mixing the underflow liquid with the overflow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, so that the separated solid can be precipitated at the bottom of the sewage collecting box 120, the separated liquid overflows, so that solid-liquid separation is realized, and the separation effect on the solid and the liquid with small density difference is better.
In this embodiment, the swirl generator 110 includes a first flow guiding section 111 and a second flow guiding section 112, the first flow guiding section 111 is disposed in a cylindrical shape, the second flow guiding section 112 is disposed in a tapered shape, and the diameter of the second flow guiding section 112 gradually decreases toward the direction close to the dirt collecting box 120, the dirt collecting box 120 is connected to one end of the second flow guiding section 112 away from the first flow guiding section 111, so that a swirl flow with a gradually decreasing diameter from top to bottom can be formed in the swirl generator 110, and further, the underflow liquid containing solids can enter the dirt collecting box 120 under the action of gravity, thereby achieving a solid-liquid separation.
Referring to fig. 5 to 7 together, in the present embodiment, the diameter of the first flow guiding section 111 is D1, and the diameter of the return pipe 130 is D2, wherein 0.03 × D1< D2<0.1 × D1, for example, D2 ═ 0.05 × D1, 0.08 × D1, or 0.09 × D1, etc., so that the swirl generator 110 can better cooperate with the return pipe 130 to perform the return flow.
In the present embodiment, one end of the return pipe 130 connected to the swirl generator 110 extends into the second flow guiding section 112, the height of the second flow guiding section 112 in the axial direction thereof is H1, the height of the projection of the return pipe 130 in the perpendicular direction to the axial direction of the swirl generator 110 is H2, the length of the projection of the portion of the return pipe 130 extending into the second flow guiding section 112 in the axial direction of the swirl generator 110 is L1, and the diameter of the connection of the second flow guiding section 112 and the return pipe 130 is D3, wherein 0.5H 1< H2< H1, 0.25D 3< L1< 0.5D 3, such as H2H 1, H2H 1 or H2H 1, and for example L1H 0.3D 5, 0.35D 3 or H594H 5734H, so that the height of the flow of the solids and liquid in the middle portion of the swirl generator 110 is suitable for separation, and liquid flows through the central portion of the swirl generator 110 and the central portion thereof, so as to be mixed with overflow liquid formed after primary solid-liquid separation and overflow from the swirl generator 110, thereby achieving better overflow effect.
In this embodiment, the cyclone separator 10 further includes an inflow pipe 150 and an overflow pipe 160, the inflow pipe 150 is disposed on a side wall of the first diversion section 111, so that the solid-liquid mixture enters the cyclone generator 110 along a circumferential direction of the first diversion section 111, and further forms a cyclone, and the overflow pipe 160 penetrates through a top wall of the cyclone generator 110, so that the liquid separated from the solid-liquid mixture can overflow through the overflow pipe 160.
In this embodiment, the cyclone separator 10 further includes a blocking mechanism 140, and the blocking mechanism 140 is disposed in the dirt collecting box 120 and is used for reducing disturbance of the cyclone flow to the dirt collecting box 120, so as to prevent solids precipitated at the bottom of the dirt collecting box 120 from being lifted and affecting the solid-liquid separation effect.
In the present embodiment, the blocking mechanism 140 includes a baffle 141, the baffle 141 is disposed opposite to the port of the swirl generator 110 communicating with the dirt collecting box 120 along the axial direction of the swirl generator 110, the diameter of the port is D4, the length of the baffle 141 in the direction perpendicular to the axial direction of the swirl generator 110 is D5, and the diameter of the dirt collecting box 120 is D6, wherein D5 is greater than 4 × D4, for example, D5 is 4.5 × D4, 5 × D4, or 5.5 × D4, etc., so that the baffle 141 has a better blocking effect on the swirl flow in the swirl generator 110, and can block the solid in the dirt collecting box 120 from flowing back into the swirl generator 110 through the port; wherein D6>6 × D4, e.g., D6 × 6.5 × D4, D6 × 7 × D4, or D6 × 7.5 × D4, etc., so that the waste collection box 120 has sufficient space to collect solids and the through-ports in the vortex generator 110 have less impact on the waste collection box 120.
In this embodiment, the blocking mechanism 140 further includes a first annular partition 142 disposed on the top wall of the dirt collection box 120 and a second annular partition 143 disposed on the bottom wall of the dirt collection box 120, the first annular partition 142 is disposed to extend toward the bottom wall, the second annular partition 143 is disposed to extend toward the top wall, the first annular partition 142 and the second annular partition 143 are disposed to be spaced apart from each other in the radial direction of the swirl generator 110, and the projections of the first annular partition 142 and the second annular partition 143 in the radial direction of the swirl generator 110 at least partially overlap with each other, so as to block the flow of the solids in the underflow liquid in the dirt collection box 120 to the return pipe 130, achieve secondary solid-liquid separation, and further reduce the disturbance of the swirl flow to the dirt collection box 120.
In the present embodiment, the height of the projection overlapping portion of the first annular partition 142 and the second annular partition 143 in the radial direction of the swirl generator 110 along the axial direction of the swirl generator 110 is H3, where H3>10mm, for example, H3 ═ 10mm, H3 ═ 12mm, or H3 ═ 15mm, can improve the blocking effect on the solid in the underflow liquid, and further make the secondary solid-liquid separation effect better.
Specifically, a solid-liquid mixture containing a flaky solid and a liquid with a small density difference enters the swirl generator 110 through the inflow pipe 150, a swirl flow is formed inside the swirl generator 110, and the flaky solid is thrown to a large radius part under the action of centrifugal force, so that primary solid-liquid separation is realized. Since the central area of the swirl generator 110 is a low pressure area, and the outlet of the return pipe 130 is close to this low pressure area, an internal return flow from the dirt collecting box 120 to the swirl generator 110 will be formed inside the return pipe 130, based on the flow conservation, an upward-downward rotational flow (as shown by the dashed-line locus in fig. 4) will be formed inside the swirl generator 110 to supplement the flow inside the return pipe 130, and the solid-liquid mixture will flow upward-downward inside the swirl generator 110, and can carry the flaky solids thrown to the large radius to flow downward to the dirt collecting box 120. Under the action of the first annular partition 142 and the second annular partition 143 in the dirt collecting box 120, the liquid carrying solids are separated by inertia when flowing to the return pipe 130, and are deposited in the dirt collecting box 120 to realize secondary solid-liquid separation.
Referring to table 1, taking spinach pomace as an example to compare the separation effect of the cyclone separator 10 and the traditional cyclone separator in the present application, equal amount of spinach pomace is added into the cyclone separator 10 and the traditional cyclone separator respectively, the operation is performed for 5min under normal washing flow, then the pollutants inside and outside the cyclone separator 10 and the traditional cyclone separator are dried respectively, the mass of the pollutants inside the separator is m1, the mass of the pollutants outside the separator is m2, and the filtration efficiency is m1/(m1+ m 2).
TABLE 1 filtration efficiency of cyclone separator 10 versus conventional separator
| Separator | Contaminants | Time of measurement | The filtration efficiency% |
| Traditional cyclone separator | Flat spinach pomace | 5min | 0-10 |
| |
Flat spinach pomace | 5min | 80-90 |
Referring to fig. 8, in another embodiment, the cyclone separator 10 may include an annular partition plate 144 connected between the top wall and the bottom wall of the dirt collecting box 120, the annular partition plate 144 is formed with a plurality of through holes 145, and the plurality of through holes 145 are communicated with the return pipe 130, so that the liquid in the underflow liquid formed after the primary solid-liquid separation can flow to the return pipe 130 through the through holes 145, thereby achieving the secondary solid-liquid separation.
Referring to fig. 9 and 10, in another embodiment, the return tube 131 may be connected to the portion of the overflow tube 160 located within the swirl generator 110; referring to fig. 11 and 12, in another embodiment, the return pipe 132 may be further connected to a portion of the overflow pipe 160 located outside the swirl generator 110, and by connecting the return pipe 131 or 132 to the overflow pipe 160, the liquid flowing back from the return pipe 131 or 132 can be prevented from interfering with the swirling flow in the swirl generator 110, so that the primary solid-liquid separation effect of the solid-liquid mixture by the swirling flow in the swirl generator 110 is better.
Referring to fig. 13 and 14, the embodiment of the cyclone separator 10 of the present invention includes a cyclone generator, a dirt collecting box 120, and a return pipe 133, the cyclone generator is configured to generate a cyclone flow for a solid-liquid mixture entering the cyclone generator, so as to perform primary solid-liquid separation on the solid-liquid mixture, the dirt collecting box 120 is configured to receive an underflow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, and perform secondary solid-liquid separation on the underflow liquid, the return pipe 130 is configured to return the underflow liquid subjected to the secondary solid-liquid separation to the cyclone generator, and mix the underflow liquid with an overflow liquid formed after the primary solid-liquid separation of the solid-liquid mixture, so that the separated solid can be deposited at the bottom of the dirt collecting box 120, and the separated liquid overflows, thereby implementing solid-liquid separation, and having a better separation effect on the solid and liquid with a smaller density difference.
In this embodiment, the swirl generator may include a main cylinder 170 and a flow guiding member 180, wherein the side wall of the main cylinder 170 is provided with an inflow pipe 150, the top of the main cylinder 170 is provided with an overflow pipe 160, the flow guiding member 180 is disposed inside the main cylinder 170, so that a solid-liquid mixture input through the inflow pipe 150 performs a solid-liquid separation in a swirl manner between the main cylinder 170 and the flow guiding member 180, the dirt collecting box 120 is disposed at the bottom of the main cylinder 170, one end of the return pipe 133 is connected to the bottom of the dirt collecting box 120, and the other end of the return pipe 133 is connected to the overflow pipe 160.
In this embodiment, water conservancy diversion piece 180 is the toper setting, and the diameter of water conservancy diversion piece 180 is to the direction crescent near dirty box 120 of collection to make the whirl radius more big at the in-process of downward flow, the solid in the solid-liquid mixture is more easily got rid of to the periphery of whirl, and then falls into in the dirty box 120 of collection, and the separation effect is better.
Referring to fig. 15 and 4, the embodiment of the dish washing apparatus of the present invention includes a housing 20, a washing pump 30, a spray pipe 40, a water receiving tray 50, and a cyclone 10, wherein the washing pump 30, the spray pipe 40, the water receiving tray 50, and the cyclone 10 are respectively disposed in the housing 20, the washing pump 30 is used for pumping washing water, the spray pipe 40 is communicated with the washing pump 30 and is used for receiving the washing water to spray the washing water onto the dishes 60 in the housing 20, the water receiving tray 50 is located at the bottom of the dishes 60 and is used for collecting the washing water after the dishes 60 are sprayed, and the cyclone 10 is communicated with the water receiving tray 50 and is used for receiving the washing water after the dishes 60 are sprayed and performing solid-liquid separation on the washing water.
The structure of the cyclone separator 10 is described in the above embodiments of the cyclone separator 10, and is not described herein again.
Specifically, the washing water is pumped by the washing pump 30, and enters the lower spray arm 420, the middle spray arm 430 and the upper spray arm 440 of the spray pipe 40 through the delivery pipe 410, and is sprayed on the tableware 60 through the nozzles 450 on the lower spray arm 420, the middle spray arm 430 and the upper spray arm 440, and the pollutants washed by the washing water and the washing water fall into the water receiving tray 50 together, and then are mixed with the washing water into a solid-liquid mixture, and enter the cyclone separator 10 together; the solids separated by the cyclone 10 are stored in the sump case 120 of the cyclone 10, and the clean liquid is introduced into the washing pump 30 again through the overflow pipe 160 of the cyclone 10, thus repeating the circulation of the spray washing.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A cyclonic fluid separator, comprising:
the swirl generator is used for generating swirl to the solid-liquid mixture entering the swirl generator so as to perform primary solid-liquid separation on the solid-liquid mixture;
the sewage collecting box is communicated with the vortex generator and is used for receiving the bottom flow liquid formed by the solid-liquid mixture after primary solid-liquid separation and carrying out secondary solid-liquid separation on the bottom flow liquid;
and one end of the return pipe is communicated with the swirl generator, and the other end of the return pipe is communicated with the sewage collecting box and is used for returning the underflow liquid after secondary solid-liquid separation to the swirl generator and mixing the overflow liquid formed after primary solid-liquid separation of the solid-liquid mixture.
2. The cyclone separator according to claim 1, wherein the cyclone generator comprises a first flow guiding section and a second flow guiding section, the first flow guiding section is arranged in a cylindrical shape, the second flow guiding section is arranged in a conical shape, the diameter of the second flow guiding section is gradually reduced towards the direction close to the dirt collecting box, and the dirt collecting box is connected to one end of the second flow guiding section far away from the first flow guiding section.
3. The cyclonic fluid separator according to claim 2, wherein the first flow guiding section has a diameter D1 and the return conduit has a diameter D2, wherein 0.03 x D1< D2<0.1 x D1.
4. The cyclone separator according to claim 2, wherein the end of the return pipe connected to the swirl generator extends into the second flow guiding section, the height of the second flow guiding section in the axial direction thereof is H1, the height of the return pipe projected in the direction perpendicular to the axial direction of the swirl generator is H2, the length of the portion of the return pipe extending into the second flow guiding section projected in the axial direction of the swirl generator is L1, and the diameter of the connection of the second flow guiding section and the return pipe is D3, wherein 0.5H 1< H2< H1, and 0.25D 3< L1< 0.5D 3.
5. The cyclonic fluid separator of claim 1 further comprising a blocking mechanism disposed within the dirt collection box for reducing disturbance of the cyclonic fluid within the dirt collection box.
6. The cyclone separator according to claim 5, wherein the blocking mechanism comprises a baffle plate disposed opposite to a port of the cyclone generator communicating with the dirt collection box in an axial direction of the cyclone generator, the port having a diameter D4, the baffle plate having a length D5 in a direction perpendicular to the axial direction of the cyclone generator, and the dirt collection box having a diameter D6, wherein D5>4 > D4 and D6> 6> D4.
7. The cyclone separator according to claim 5, wherein the blocking mechanism further comprises a first annular partition plate disposed on the top wall of the dirt collection box and a second annular partition plate disposed on the bottom wall of the dirt collection box, the first annular partition plate is disposed to extend toward the bottom wall, the second annular partition plate is disposed to extend toward the top wall, the first annular partition plate and the second annular partition plate are disposed at a radial interval of the cyclone generator, and projections of the first annular partition plate and the second annular partition plate in a radial direction of the cyclone generator at least partially overlap.
8. The cyclonic fluid separator of claim 7, wherein the height of the projected overlapping portion of the first annular partition and the second annular partition in the radial direction of the swirl generator in the axial direction of the swirl generator is H3, wherein H3>10 mm.
9. The cyclone separator according to claim 1, further comprising an overflow pipe penetratingly disposed at a top wall of the cyclone generator, the return pipe being connected to a portion of the overflow pipe located inside the cyclone generator or to a portion of the overflow pipe located outside the cyclone generator.
10. The cyclone separator according to claim 1, further comprising an annular partition plate connected between the top wall and the bottom wall of the dirt collection box, the annular partition plate having a plurality of through holes formed therein, the plurality of through holes communicating with the return pipe.
11. A dishwashing appliance, comprising:
a housing;
a washing pump disposed in the housing for pumping washing water;
a spray pipe disposed in the housing and in communication with the wash pump for receiving the wash water to spray the wash water onto the dishes within the housing;
the water receiving tray is arranged in the shell, is positioned at the bottom of the tableware and is used for collecting the washing water after the tableware is sprayed;
the cyclone separator is arranged in the shell, is communicated with the water receiving disc and is used for receiving the washing water sprayed with the tableware and carrying out solid-liquid separation on the washing water;
wherein the cyclonic fluid separator is as claimed in claims 1 to 10.
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| CN114431809B (en) | 2024-07-12 |
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