EP1767276A1 - Séparateur cyclonique avec générateur de mouvement tourbillonnaire préliminaire et dépoussiereur ou automobile munie d'un tel séparateur. - Google Patents

Séparateur cyclonique avec générateur de mouvement tourbillonnaire préliminaire et dépoussiereur ou automobile munie d'un tel séparateur. Download PDF

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Publication number
EP1767276A1
EP1767276A1 EP05255892A EP05255892A EP1767276A1 EP 1767276 A1 EP1767276 A1 EP 1767276A1 EP 05255892 A EP05255892 A EP 05255892A EP 05255892 A EP05255892 A EP 05255892A EP 1767276 A1 EP1767276 A1 EP 1767276A1
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Prior art keywords
cyclone
fluid
preliminary
swirling
preliminary swirling
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EP05255892A
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German (de)
English (en)
Inventor
Heiya Noguchi
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KK Fukuma Technica
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KK Fukuma Technica
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Priority to EP05255892A priority Critical patent/EP1767276A1/fr
Publication of EP1767276A1 publication Critical patent/EP1767276A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission

Definitions

  • the present invention relates to a cyclone apparatus configured to provide swirling movement to fluid containing object in powder or granular state and process the object and the fluid, a preliminary swirling unit used in the apparatus, and a powder dust remover or an automobile including the apparatus.
  • a cyclone apparatus for providing centrifugal force generated by swirling movement to fluid containing objects in powder or granular state and processing the object in the fluid is widely used in many fields.
  • a pipe line is connected to an inlet of a case body (cyclone body) which is formed an approximate cylindrical shape and stands straight.
  • a case body cyclone body
  • fluid containing objects in powder or granular state is introduced in a direction tangential to an interior wall of the case body so that component of swirling velocity is generated.
  • objects which have higher specific gravity than fluid fall to a lower portion of the case body as being pressed to the interior wall of the case body.
  • fluid from which object is removed is discharged from an outlet pipe standing near the center of the case body.
  • the turning radius of particles introduced into the central side of the case body from the inlet is smaller than that of particles introduced into the outer side. As a result, it becomes a problem that efficient centrifugal force is not provided to the particles introduced in the central side of the case body, and the particles contacts and disturbs swirling flow in the case body so that the processing efficiency becomes down.
  • a cyclone apparatus having such a vertically long case body may be long in longitudinal direction so that it is physically impossible to be employed in an industry in which installation space is not assured.
  • such apparatus cannot be employed as an exhaust gas processing device in an automobile.
  • centrifugal dust collector including a pipe line having a curvature in lower part as seen in direction of fluid flow is invented ( Japanese Patent Application Laid-Open No. 6-320055 , for example).
  • a cyclone apparatus including a bent pipe for providing horizontal swirling movement, in the same direction to swirling flow in the cyclone apparatus, to fluid in advance, a horizontal straight rectifier pipe connected to the bent pipe, a pipe for being connected to the horizontal straight pipe and introducing the fluid into an external pipe vorticosely from outside of the external pipe of the cyclone apparatus is invented ( Japanese Patent Application Laid-Open No. 10-34022 , for example).
  • the cyclone apparatus includes a "cyclone body” for providing swirling movement to fluid containing objects in powder or granular state and processing the objects and the fluid, a “preliminary swirling unit” for being formed an approximate cylindrical shape and providing swirling movement to in the same direction of the swirling flow in the cyclone body to the fluid containing object in advance, a “connecting path” for discharging the fluid previously swirled in the preliminary swirling unit from the preliminary swirling unit in tangential direction and introducing the fluid to the cyclone body in tangential direction.
  • the cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to the fluid and the objects in the fluid is gathered to the side of the interior wall of the preliminary swirling unit.
  • the objects introduced into the cyclone body are in an efficient condition to be processed in a short amount of time.
  • the cyclone body can be downsized so that it may be employed in an industry in which space for installation is not assured. For example, it may be employed as an exhaust gas processing device in an automobile.
  • the fluid is swirled in both of the preliminary swirling unit and the cyclone body. It is found that phase of noise generated in the preliminary swirling unit and phase of noise generated in the cyclone body are inverted so as to cancel each other, and the noise can be kept turned down.
  • the present invention has been completed based on the above findings and an object of the invention is to provide a new cyclone apparatus capable to realize high processing efficiency and miniaturization, a preliminary swirling unit used in the apparatus, and a powder dust remover or an automobile having the apparatus.
  • a cyclone apparatus of the present invention includes a "cyclone body” for providing swirling movement to fluid containing objects in powder or granular state and processing the objects and fluid, a “preliminary swirling unit” with an approximate cylindrical shape for providing swirling movement in the same direction as that of the swirling flow in the cyclone body to the fluid containing objects in advance, and a “connecting path” for discharging the fluid previously swirled in the preliminary swirling units from the preliminary swirling unit in tangential direction and introducing the fluid to the cyclone body in tangential direction.
  • a cyclone apparatus of the present invention a preliminary swirling unit used in the apparatus, and a powder dust remover or an automobile having the apparatus will be described in detail.
  • Fluid containing objects in powder or granular state is a material that flows promptly in the cyclone apparatus without accumulating and should not be limited. It may be in liquid or gas state.
  • it may be, for example, exhaust gases or the like exhausted in various industries such as manufacturing industry, electricity generating industry, construction industry, waste disposal industry, and agricultural industry, or exhaust gases or the like exhausted from various means of transportation such as bikes, automobiles, trucks, busses, locomotives and ships.
  • the cyclone apparatus of the present invention is to process such fluid containing objects in powder or granular state, and includes a "cyclone body", a "preliminary swirling unit” and a "connecting path".
  • the "cyclone body" included in the cyclone apparatus of the present invention should not be limited and a conventional cyclone using a principle of processing objects such as powder dust in use of centrifugal force generated by swirling fluid can be employed.
  • a cyclone is employed, which has an approximate cylindrical body for fluid slewing, an approximate conical lower body portion for being provided continuously to the bottom part of the body, a fluid outlet pipe, and a connecting unit which is explained below.
  • the cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to the fluid, and the object in the fluid is gathered to the side of the interior wall of the preliminary swirling unit.
  • the object introduced into the cyclone body is in an efficient condition to be processed in a short amount of time. With such structure, the cyclone body can be downsized.
  • the cyclone body used in the cyclone apparatus of the present invention may be shorter than the conventional cyclone. That is, the cyclone body which is short in the vertical length may be used preferably.
  • the cyclone apparatus of the present invention may be employed in an industry in which installation space is not assured and in which a conventional cyclone can not be applied. For example, it may be used as an exhaust gas processing device in automobiles.
  • the vertical length of the cyclone body can be determined according to the applying field or the acceptable installing space, and it should not be limited. Generally, it is preferable that the length is set 1 to 5 times longer than the average diameter of the approximate cylindrical body for slewing fluid. Further, it is more preferable that the length is set 1.5 to 3 times longer than the average diameter of the body.
  • the vertical length of the cyclone body is set shorter than the average diameter of the approximate cylindrical body for swirling fluid because efficient swirling movement cannot be provided to fluid. Also, it is not preferable that the vertical length of the cyclone body is set more than 5 times longer than the average diameter of the approximate cylindrical body for swirling fluid because the cyclone body becomes very long in vertical direction and the applying field may be limited.
  • the “approximate cylindrical” means not only a literally called cylindrical shape (circular cylinder) in which the top diameter and the bottom diameter are the same but also a shape such as circular cone which is cut in a horizontal face (campanulate shape or inverted campanulate shape), for example.
  • the "approximate cylindrical” used for the cyclone apparatus of the present invention represents any kind of hollow shapes in which fluid is swirled promptly without accumulating. In other words, it represents all hollow shapes having a circular horizontal cross section.
  • the "average diameter” represents an average value of diameters of the body from the upper part to the bottom part.
  • approximately conical means not only a literally called circular cone shape but also a hemispheric shape, a cone-shaped hollow, a centroclinal shape or the like.
  • approximately conical (bottom portion of the body) is continuously provided to the approximate cylindrical body for swirling fluid and includes any kinds of hollow shapes in which its diameter changes smaller gradually as in lower part of the cyclone body.
  • cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to the fluid and the objects in the fluid is gathered to the side of the interior wall of the preliminary swirling unit.
  • the objects in fluid is pressed to the interior wall of the preliminary swirling unit, that is, the distribution condition of the objects in fluid is gathered to the side of the interior wall of the preliminary swirling unit. Fluid which is made in such condition is introduced into the cyclone body via the connecting path. This is the greatest feature of the present invention.
  • swirling movement is provided to fluid in the preliminary swirling unit and the objects in the fluid are gathered to the side of the interior wall of the preliminary swirling unit. Fluid which is made in such condition is sequentially introduced into the cyclone body so that the objects in fluid introduced to the cyclone body are in an efficient condition to be processed in a small amount of time.
  • the "preliminary swirling unit” used in the cyclone apparatus of the present invention has an approximate cylindrical body, a fluid inlet for introducing the fluid into the body in tangential direction, and a connecting path which is described later.
  • the "preliminary swirling unit” is a unit to swirl fluid promptly without accumulating and it should not be limited.
  • the “approximate cylindrical” means not only a literally called cylindrical shape (circular cylinder) in which the above diameter and the bottom diameter are the same but also a shape such as circular cone which is cut in a horizontal face (campanulate shape or inverted campanulate shape), for example.
  • the "approximate cylindrical” used for the cyclone apparatus of the present invention represents any kinds of hollow shapes in which fluid is swirled promptly without accumulating. In other words, it represents all hollow shapes having a circular horizontal cross section.
  • the interior wall of the preliminary swirling unit is smooth with few concavities and convexities because extreme concavities and convexities on the interior wall of the preliminary swirling unit may disturb the swirling flow.
  • the diameter of the preliminary swirling unit is made to change gradually smaller from the portion where an inlet is formed to the portion where the connecting path, explained later, is formed.
  • the vertical length of the preliminary swirling unit can be determined according to the applying field or the acceptable installing space, and it should not be limited. Generally, it is preferable that the length is set 1 to 5 times longer than the average diameter of the approximate cylindrical body for slewing fluid. Further, it is more preferable that the length is set 1.5 to 3 times longer than the average diameter of the body.
  • the vertical length of the preliminary swirling unit is set shorter than the average diameter of the approximate cylindrical body for swirling fluid because efficient swirling movement cannot be provided to fluid. Also, it is not preferable that the vertical length of the preliminary swirling unit is set more than 5 times longer than the average diameter of the approximate cylindrical body for swirling fluid because the preliminary swirling unit becomes very long in vertical direction and the applying field is limited.
  • the “average diameter” represents an average value of diameters of the body from the upper part to the bottom part.
  • cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to the fluid and the objects in fluid is gathered to the side of the interior wall of the preliminary swirling unit.
  • the objects in fluid is pressed to an interior wall of the preliminary swirling unit, that is, the distribution condition of the objects in fluid is gathered to the side of the interior wall of the preliminary swirling unit. Fluid which is made in such condition is introduced into the cyclone body via the connecting path.
  • swirling movement is provided to fluid in the preliminary swirling unit in advance. Fluid in condition that objects in the fluid is gathered to the side of the interior wall of the preliminary swirling unit is introduced into the cyclone body.
  • an efficient swirling movement can be provided to fluid even when introducing speed (initial speed) for introducing fluid is not ensured.
  • efficient centrifugal force can be provided to objects even when the objects in fluid is fine powder dust, and the introducing condition of objects in fluid to the cyclone body can be improved.
  • the "connecting path" for connecting the cyclone body and the preliminary swirling unit is a path for discharging fluid previously swirled in the preliminary swirling unit from the preliminary swirling unit in tangential direction and introducing the fluid into the cyclone body in tangential direction, and it should not be limited. However, it is preferable that the connecting path linearly connects the cyclone body and the preliminary swirling unit to maintain the distribution condition of the objects in fluid, which is gathered in the preliminary swirling unit, and to prevent resistance (impact) given to the fluid drained form the preliminary swirling unit.
  • the connecting path has a flat interior wall at least in outer side of the apparatus, that is, a greater density side of the object distribution in fluid when the fluid passes through the connecting path.
  • the cyclone apparatus of the present invention includes a "cyclone body", a “preliminary swirling unit", and a “connecting path".
  • each element is not limited and more than one unit may be provided for each element. In some situations, another cyclone body (sub-cyclone), another preliminary swirling unit, or another connecting path for connecting those elements may be provided.
  • the sub-cyclone is connected to the preliminary swirling unit via a different connecting path from what connects the cyclone body.
  • the same as the cyclone body is connected to the preliminary swirling unit via the same as the connecting path. Therefore, to avoid repetition, those explanations are omitted here.
  • a further sub-cyclone may be provided if required.
  • overflow situations may be prevented and processing amount in the apparatus can be increased.
  • a plurality of preliminary swirling units are serially connected so that time can be maintained to provide efficient swirling movement to the fluid introduced into the preliminary swirling units from a fluid inlet pipe.
  • the diameter of the preliminary swirling unit is made to change gradually smaller from the portion where the inlet is formed to the portion where the connecting path, explained later, is formed.
  • efficient centrifugal force can be provided to the objects in fluid while the fluid is passing through the plurality of preliminary swirling units even when introducing speed (initial speed) for introducing fluid is extremely slow.
  • the plurality of preliminary swirling units are serially connected via connecting paths. However, they are connected via the same as the above connecting path for connecting the cyclone body and the preliminary swirling unit. Therefore, to avoid repetition, those explanations are omitted here.
  • the average diameters for each of the approximate cylindrical body for swirling fluid in the cyclone body and the approximate cylindrical body of the preliminary swirling unit may be determined according to the applying field or the acceptable installing space, and they should not be limited.
  • fluid is swirled in both of the preliminary swirling unit and the cyclone body. It is found that the noise generated in the preliminary swirling unit and the noise generated in the cyclone body cancel each other and the noise can be kept turned down. Especially, it is found that generated noise becomes smallest in the condition that the phase of noise generated in the preliminary swirling unit and phase of noise generated in the cyclone body are inverted.
  • phase of noise generated in the preliminary swirling unit and phase of noise generated in the cyclone body are inverted can be achieved when the average internal diameters of the approximate cylindrical body for slewing fluid in the cyclone body and the approximate cylindrical body in the preliminary swirling unit are set almost the same. Therefore, it is preferable that, when the average internal diameter of the approximate cylindrical body for slewing fluid in the cyclone body is set "1", the average internal diameter of the approximate cylindrical body in the preliminary swirling unit is set to "1 ⁇ 0.2" (proportion). It is more preferable that it is adjusted to "1 ⁇ 0.1" (proportion).
  • the same noise reduction effects as mentioned above can also be achieved when the average internal diameters of the approximate cylindrical body for slewing fluid in the cyclone body and the approximate cylindrical body in the preliminary swirling unit are set almost the same. Therefore, in this case, it is preferable that, when the average internal diameter of the approximate cylindrical body for slewing fluid in the cyclone body is set "1", the average internal diameter of the approximate cylindrical body in the preliminary swirling unit is set to "1 ⁇ 0.2" (proportion), more preferably "1 +0.1" (proportion).
  • the average internal diameters of the approximate cylindrical body for slewing fluid in the cyclone body and the approximate cylindrical body in the sub-cyclone are set differently.
  • the average internal diameter of the cyclone body is set to "1”
  • the average internal diameter of the sub-cyclone is set to "1 ⁇ 0.2" (proportion) so that the phases of noise generated in each becomes different so that each noise does not accentuate each other.
  • the cyclone apparatus of the present invention is for providing swirling movement to the fluid in the preliminary swirling unit and the objects in fluid are gathered to the side of the interior wall of the preliminary swirling unit and processing the fluid and the objects in the cyclone body.
  • powder dust is rubbed on the interior walls and burned off during the swirling movement in the preliminary swirling unit and the cyclone body. It finally changes into gas such as carbon dioxide.
  • the cyclone apparatus of the present invention processes objects contained in fluid, which is mostly fine powder dust such as exhaust gas of an automobile, most of the fine powder dust contained in the exhaust gas is burned out during swirling movement in the preliminary swirling unit and the cyclone body. Then, they turn into gas so as to be drained with fluid.
  • fluid which is mostly fine powder dust such as exhaust gas of an automobile
  • the objects gathered in the cyclone body and/or the sub-cyclone may be reintroduced to the preliminary swirling unit as required.
  • the collected objects which are remained without being burned off can be swirled again in the preliminary swirling unit and the cyclone body to be changed into gas.
  • an operation of removing the collected fine powder dust can be omitted. It realizes what is called maintenance-free.
  • the powder dust may collected by means for collecting such as a rocker valve at the bottom part of the cyclone body. With the operation of the rocker valve or the like, the collected powder dust may be led to a reintroducing pipe which is connected to the preliminary swirling unit. The powder dust may be reintroduced to the preliminary swirling unit via the reintroducing pipe.
  • a preliminary swirling unit of the present invention has the above structure and employed in the cyclone apparatus of the present invention.
  • the processing efficiency of a conventional cyclone body can be remarkably improved by connecting the preliminary swirling unit with the conventional cyclone body.
  • a powder dust remover of the present invention is a new powder dust remover including the cyclone apparatus of the present invention.
  • the powder dust remover is distinguished so that processing efficiency is increased, the cyclone apparatus of the present invention can be downsized, and the noise is kept turned down.
  • An automobile of the present invention includes the cyclone apparatus of the present invention. Its exhaust gas is processed with the cyclone system although it had been impossible because the installation space could not be ensured. Because of the sound deadening effect of the cyclone apparatus of the present invention, a muffling device such as a muffler is not required to be installed and a maintenance-free mechanism is achieved.
  • the cyclone apparatus of the present invention includes a "cyclone body” for providing swirling movement to fluid containing objects in powder or granular state and processing the object and the fluid, a “preliminary swirling unit” for being formed an approximate cylindrical shape and providing swirling movement in the same direction of the swirling flow in the cyclone body to fluid containing objects in advance, a “connecting path” for discharging fluid previously swirled in the preliminary swirling unit from the preliminary swirling unit in tangential direction and introducing the fluid to the cyclone body in tangential direction.
  • the cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to the fluid and the objects in the fluid are gathered to the side of the interior wall of the preliminary swirling unit. Fluid which is made in such condition is introduced sequentially into the cyclone body.
  • the disadvantage of the conventional cyclone apparatus which is a processing inefficiency caused by the introducing condition of the objects in fluid, can be solved.
  • the cyclone apparatus of the present invention before fluid containing objects in powder or granular state is introduced into the cyclone body, swirling movement is provided to fluid and the objects in the fluid is gathered to the side of the interior wall of the preliminary swirling unit.
  • the objects in fluid introduced into the cyclone body can be in an efficient condition to be processed in a short amount of time.
  • the cyclone body can be downsized and may be employed in an industry in which space for installation is not assured. For example, it may be employed as an exhaust gas processing device in an automobile.
  • the fluid is swirled in both of the preliminary swirling unit and the cyclone body. It is found that the phase of noise generated in the preliminary swirling unit and phase of noise generated in the cyclone body are inverted so as to cancel each other and the noise can be kept turned down.
  • a powder dust remover of the present invention is a new powder dust remover including the cyclone apparatus of the present invention.
  • the powder dust remover is distinguished so that processing efficiency is increased, the cyclone apparatus of the present invention can be downsized, and the noise is kept turned down.
  • An automobile of the present invention includes the cyclone apparatus of the present invention. Its exhaust gas is processed with a cyclone system although it had been impossible because the installation space could not be ensured. Because of the sound deadening effect of the cyclone apparatus of the present invention, a muffling device such as a muffler is not required to be installed and a maintenance-free mechanism is achieved.
  • FIG 1 is a diagram showing a cyclone apparatus 1 of the present invention.
  • the apparatus 1 includes a cyclone body 2, a preliminary swirling unit 3 and a connecting path 4.
  • the cyclone body 2 includes an approximate cylindrical body 21 for slewing fluid, an approximate conical lower body portion 22, and a fluid outlet pipe 23.
  • the cyclone body 2 employs a principle of processing objects, such as powder dust, in use of centrifugal force which is generated by swirling fluid tangentially introduced from the connecting path 4.
  • the preliminary swirling unit 3 includes an approximate cylindrical body 31, a fluid inlet pipe 32 for tangentially introducing fluid from the body 31.
  • the preliminary swirling unit 3 is configured to introduce fluid to the cyclone body 2 via the connecting path 4.
  • the fluid is tangentially introduced from the fluid inlet pipe 32 to be swirled.
  • distribution of objects in the fluid is gathered in side of an interior wall of the preliminary swirling unit 3. Fluid which is made in such condition is introduced sequentially.
  • a square pipe which is straight and whose section is square, is used to prevent a diffusion of the gathered objects in the preliminary swirling unit 3, in other words, to maintain the object distribution condition.
  • FIG 2A is a diagram showing an object condition in fluid passing through the connecting path 4 of the cyclone apparatus 1 of the present invention.
  • FIG 2B is an overhead transparent diagram showing a part of the connecting path 4 in the condition of FIG 2A.
  • Fluid is introduced into the cyclone body 2 while maintaining the condition that the objects are gathered in outer side in the connecting path 4.
  • swirling movement is provided to fluid in advance in the preliminary swirling unit 3.
  • Fluid in condition that objects in the fluid are gathered in outer side of the preliminary swirling unit 3 is introduced into the cyclone body 2.
  • the distribution condition of the objects in fluid introduced into the cyclone body 2 is efficient to be processed in a short amount of time.
  • the cyclone body 2 can be downsized, and an efficient swirling movement can be provided to fluid even when introducing speed (initial speed) for introducing fluid is not ensured.
  • efficient centrifugal force can be provided to objects even when the objects in fluid are fine powder dust, and the introducing condition of the objects in fluid to the cyclone body 2 can be improved.
  • FIG 3 is a diagram showing a cyclone apparatus 1 of another embodiment of the present invention.
  • the apparatus 1 includes a cyclone body 2, a sub-cyclone 5, a preliminary swirling unit 3 and connecting paths 4 (41, 42).
  • the cyclone apparatus 1 shown in FIG 3 has the same structure asExample 1 except that it includes the sub-cyclone 5 in addition to the cyclone body 2. It prevents situations such as that the amount of fluid flow from the preliminary swirling unit 3 to the cyclone body 2 is excess so that it cannot passes through the connecting path 41 promptly, and that the amount of fluid flow exceeds the processing amount of the cyclone body 2 so that some excess fluid which cannot be introduced into the cyclone body 2 overflows. Those situations are caused in condition that a large amount of fluid is to be processed, or that the introducing amount of fluid is not constant.
  • the cyclone body 2, the preliminary swirling unit 3 and the connecting paths 4 employed in this Example can be the same as those explained in Example 1. Therefore, to avoid repetition, those explanations are omitted here.
  • the sub-cyclone 5 of this Example is connected to the preliminary swirling unit 3 via the connecting path 42 similar to the connecting path 41. Thus, to avoid repetition, its explanation is omitted here.
  • the sub-cyclone 5 includes an approximate cylindrical body 51 for slewing fluid, an approximate conical lower body portion 52, and a fluid outlet pipe 53.
  • the sub-cyclone 5 employs a principle of processing objects, such as powder dust, in use of centrifugal force which is generated by swirling fluid tangentially introduced from the connecting path 42.
  • a device similar to the cyclone body 2 may be applied as the sub-cyclone 5.
  • the average internal diameters of the approximate cylindrical body 21 for slewing fluid in the cyclone body 2 and the approximate cylindrical body 51 in the sub-cyclone 5 are set differently. As a result, phases of noises generated in each of them become different to prevent that the noises accentuate each other.
  • FIG 4 is a diagram showing a cyclone apparatus 1 of another embodiment of the present invention.
  • the apparatus 1 includes a cyclone body 2, a first preliminary swirling unit 3a, a second preliminary swirling unit 3b, and connecting paths 4 (41, 43).
  • the cyclone apparatus 1 shown in FIG 4 has the same structure as Example 1 except that it includes a couple of (a plurality of) preliminary swirling units, the first preliminary swirling unit 3a and the second preliminary swirling unit 3b, which are serially connected.
  • a couple of (a plurality of) preliminary swirling units the first preliminary swirling unit 3a and the second preliminary swirling unit 3b, which are serially connected.
  • the cyclone body 2 the preliminary swirling units (the first preliminary swirling unit 3a and the second preliminary swirling unit 3b), and the connecting paths 4 employed in this Example can be the same as those explained inExample 1. Therefore, to avoid repetition, those explanations are omitted here.
  • the first preliminary swirling unit 3a and the second preliminary swirling unit 3b are serially connected via the connecting path 43.
  • the connecting paths 43 can be the same as a connecting path 41 which connects the second preliminary swirling unit 3b and the cyclone body 2. Therefore, to avoid repetition, its explanation is omitted here.
  • FIG 5 is a diagram showing a cyclone apparatus 1 of another embodiment of the present invention.
  • the apparatus 1 includes a cyclone body 2, a sub-cyclone 5, a preliminary swirling unit 3, connecting paths 4, and a reintroducing pipe 6.
  • the cyclone body 2 (and the sub-cyclone 5), as shown in a sectional diagram of FIG 6, includes an approximate cylindrical body 21 (51) for slewing fluid, an approximate conical lower body portion 22 (52), a fluid outlet pipe 23 (53), and a rocker valve 24(54).
  • the cyclone body 2 employs a principle of processing objects, such as powder dust, in use of centrifugal force which is generated by swirling fluid tangentially introduced from the connecting path 41(42). Particularly, collected objects are collected in the rocker valve 24(54), and, by the operation of the rocker valve 24(54), the collected objects are brought to the reintroducing pipe 6 which is connected with the preliminary swirling unit 3. The collected objects are reintroduced to the preliminary swirling unit 3 via the reintroducing pipe 6.
  • the cyclone apparatus 1 shown in FIG 5 has the same structure as Example 1, except for that it employs the cyclone body 2 (and sub-cyclone 5) having the rocker valve 24(54) in its bottom portion and includes the reintroducing pipe 6 for reintroducing the collected objects in the rocker valve 24(54) into the preliminary swirling unit 3.
  • the objects in fluid are fine powder dust, such as exhaust gas from an automobile
  • the objects can be completely burned off to gasify by slewing in the preliminary swirling unit 3, the cyclone body 2 or the like.
  • an operation for removing the collected fine powder dust can be omitted, and a maintenance-free mechanism is achieved.
  • the preliminary swirling unit 3 and the connecting paths 4 can be the same as those explained inExample 1. Therefore, to avoid repetition, those explanations are omitted here.
  • the reintroducing pipe 6 is connected to a fluid inlet pipe 32 so as to make the inside of the reintroducing pipe 6 to be in pressure-reduced condition when new fluid is introduced into the fluid inlet pipe 32.
  • the objects brought to the reintroducing pipe 6 from the rocker valve 24(54) can be promptly introduced into the fluid inlet pipe 32.
  • a cyclone apparatus of the present invention includes a cyclone body for providing swirling movement to fluid containing objects in powder or granular state and processing the objects and fluid, a preliminary swirling unit for being an approximate cylindrical shape and providing swirling movement in the same direction of the swirling flow in the cyclone body to the fluid containing objects in advance, and a connecting path for discharging fluid previously swirled in the preliminary swirling unit from the preliminary swirling unit in tangential direction and introducing the fluid to the cyclone body in tangential direction.
  • the cyclone apparatus of the present invention can preferably process exhaust gases or the like exhausted in various industries such as manufacturing industry, electricity generating industry, construction industry, waste disposal industry, and agricultural industry, or exhaust gases or the like exhausted from various means of transportation such as bikes, automobiles, trucks, busses, locomotives, and ships. Therefore, the cyclone apparatus of the present invention can be applied not only to powder dust removers or automobiles but also kitchen instruments, smokeless roasters, ash collectors, air purification systems, clean room equipments, exhaust gas treatment devices for ships, construction machines, agricultural instruments, steam locomotives, diesel locomotives, garbage disposals, spin-dryers, sawdust separators for lumber sawing, or leather waste segregators.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cyclones (AREA)
EP05255892A 2005-09-22 2005-09-22 Séparateur cyclonique avec générateur de mouvement tourbillonnaire préliminaire et dépoussiereur ou automobile munie d'un tel séparateur. Withdrawn EP1767276A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05255892A EP1767276A1 (fr) 2005-09-22 2005-09-22 Séparateur cyclonique avec générateur de mouvement tourbillonnaire préliminaire et dépoussiereur ou automobile munie d'un tel séparateur.

Applications Claiming Priority (1)

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EP05255892A EP1767276A1 (fr) 2005-09-22 2005-09-22 Séparateur cyclonique avec générateur de mouvement tourbillonnaire préliminaire et dépoussiereur ou automobile munie d'un tel séparateur.

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EP1767276A1 true EP1767276A1 (fr) 2007-03-28

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN101972717A (zh) * 2010-11-05 2011-02-16 华东理工大学 基于进口颗粒调控的旋流器
WO2011067336A1 (fr) 2009-12-04 2011-06-09 Nifco Uk Limited Système de séparation pour séparer des particules d'un premier fluide d'un flux d'un second fluide
CN102688630A (zh) * 2012-06-12 2012-09-26 北京乡电电力有限公司 浸泡水冷式离心除尘器
CN103550990A (zh) * 2013-10-25 2014-02-05 瓮福（集团）有限责任公司 一种旋风除尘器的自动控制装置
JP2015098024A (ja) * 2013-11-18 2015-05-28 ニフコ ユーケー リミテッド 第１流体の粒子であって、第２流体の流れに載った第１流体の粒子を凝集する装置

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DE3741753A1 (de) * 1986-12-30 1988-07-14 Coal Industry Patents Ltd Vorrichtung und verfahren zum klassieren von teilchenfoermigen feststoffen
EP0430647A1 (fr) * 1989-11-28 1991-06-05 Leo Alexander Smolensky Méthode et dispositif pour la séparation des particules entraînées par un fluide
JPH06320055A (ja) 1993-05-07 1994-11-22 Hitachi Ltd 遠心力集じん装置
US5679074A (en) * 1995-02-16 1997-10-21 Mercedes-Benz Ag Air inlet installation for an automobile
JPH1034022A (ja) 1996-07-26 1998-02-10 Fuji Xerox Co Ltd 粉粒体捕集用サイクロン装置及びトナーの製造装置
US20050115273A1 (en) * 2001-12-31 2005-06-02 Hillegonda Bakker Multistage fluid separation assembly and method

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US3466853A (en) * 1967-01-07 1969-09-16 Siemens Ag Air cleaner for internal combustion engines
DE3741753A1 (de) * 1986-12-30 1988-07-14 Coal Industry Patents Ltd Vorrichtung und verfahren zum klassieren von teilchenfoermigen feststoffen
EP0430647A1 (fr) * 1989-11-28 1991-06-05 Leo Alexander Smolensky Méthode et dispositif pour la séparation des particules entraînées par un fluide
JPH06320055A (ja) 1993-05-07 1994-11-22 Hitachi Ltd 遠心力集じん装置
US5679074A (en) * 1995-02-16 1997-10-21 Mercedes-Benz Ag Air inlet installation for an automobile
JPH1034022A (ja) 1996-07-26 1998-02-10 Fuji Xerox Co Ltd 粉粒体捕集用サイクロン装置及びトナーの製造装置
US20050115273A1 (en) * 2001-12-31 2005-06-02 Hillegonda Bakker Multistage fluid separation assembly and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011067336A1 (fr) 2009-12-04 2011-06-09 Nifco Uk Limited Système de séparation pour séparer des particules d'un premier fluide d'un flux d'un second fluide
EP2335799A1 (fr) * 2009-12-04 2011-06-22 Nifco UK Limited Système de séparation pour séparer des particules de solides ou de liquides dispersées dans un gaz
CN102892477A (zh) * 2009-12-04 2013-01-23 利富高英国有限公司 一种用于从第二流体流中分离第一流体微粒的分离系统
US8657901B2 (en) 2009-12-04 2014-02-25 Nifco Uk Limited Separation system for separating particles of first fluid from a flow of a second fluid
CN102892477B (zh) * 2009-12-04 2015-05-06 利富高英国有限公司 一种用于从第二流体流中分离第一流体微粒的分离系统
CN101972717A (zh) * 2010-11-05 2011-02-16 华东理工大学 基于进口颗粒调控的旋流器
CN102688630A (zh) * 2012-06-12 2012-09-26 北京乡电电力有限公司 浸泡水冷式离心除尘器
CN103550990A (zh) * 2013-10-25 2014-02-05 瓮福（集团）有限责任公司 一种旋风除尘器的自动控制装置
JP2015098024A (ja) * 2013-11-18 2015-05-28 ニフコ ユーケー リミテッド 第１流体の粒子であって、第２流体の流れに載った第１流体の粒子を凝集する装置

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