DE102016201715A1 - separating - Google Patents

Abstract

In order to provide a separation device which is simple in construction and enables efficient separation of contaminants, it is proposed that the separation device comprises:
a housing which surrounds an at least approximately cylindrical separating space of the separating device;
a rotary separator arranged in the separation chamber for separating impurities, in particular liquid drops, from the raw gas stream;
a supply device for supplying a raw gas flow to the rotary separator;
a discharge device for discharging a clean gas flow from the separation chamber, the discharge device comprising a first discharge section, a second discharge section and a flow deflection section arranged between the two discharge sections.

Description

The present invention relates to a separation device, in particular an oil separator. A separation device is used in particular for separating impurities from a crude gas stream. For example, the separator may serve to separate oil droplets from a stream of crude gas containing oil droplets.

Separating devices are for example from the DE 10 2012 104 598 A1 , of the DE 199 14 166 A1 , of the DE 699 06 019 T2 , of the DE 103 50 562 A1 and the DE 10 2013 207 058 A1 known.

The present invention has for its object to provide a separation device, which is simple in construction and allows efficient separation of impurities.

This object is achieved according to the invention by a separation device for separating impurities from a stream of raw gas, the separation device comprising:
a housing which surrounds an at least approximately cylindrical separating space of the separating device;
a rotary separator arranged in the separation chamber for separating impurities, in particular liquid drops, from the raw gas stream;
a supply device for supplying a raw gas flow to the rotary separator;
a discharge device for discharging a clean gas flow from the separation chamber, the discharge device comprising a first discharge section, a second discharge section and a flow deflection section arranged between the two discharge sections.

By virtue of the fact that the separation device comprises a flow deflection section, undesired discharge of contaminants from the separation space is preferably minimized or completely avoidable.

In one embodiment of the invention can be provided that the first discharge section surrounds the second discharge section at least partially annular or cylinder jacket-shaped or cone-shaped.

The first discharge section is preferably at least in sections an annular channel or cylinder jacket-shaped or cone-shaped channel which surrounds the second discharge section at least in sections.

It may be favorable if the second discharge section comprises a discharge nozzle or discharge channel, which projects into the first discharge section.

Furthermore, it can be provided that the second discharge section is formed by a discharge nozzle or discharge channel, which projects into the first discharge section.

The first discharge section and the second discharge section preferably have a common wall, which is in particular at least approximately cylindrical jacket-shaped or cone-shaped.

It can be advantageous if the first discharge section is formed at least in sections by a bulge in a separation wall of the housing surrounding the separation space.

Relative to a rotational axis of the rotary separator, this bulge is preferably designed radially outward in the separation wall.

The axis of rotation of the rotary separator is preferably also a rotation axis or axis of symmetry of the separation space and the separation wall.

The bulge, which forms at least part of the first discharge section, is preferably a niche formed in the separation wall.

It may be favorable if the bulge connects in the radial direction on the outside to the rotary separator.

Preferably, the bulge is at least largely arranged at the same height as the rotary separator, in particular with respect to a direction parallel to the axis of rotation of the rotary separator.

A bottom wall bounding the first discharge section in a direction of gravity downward preferably comprises a drainage slope or is designed as a drainage slope.

The drainage slope preferably opens into the separation chamber. This means, in particular, that a liquid draining on the drainage slope flows directly into the separation chamber. In this way, in particular, a separated liquid can be held in the separation chamber or returned to it in order to avoid an undesired escape via the discharge section.

It can be advantageous if the housing comprises two housing halves.

The first discharge section, the second discharge section and / or the flow deflection section are preferably formed by a single one of the two housing halves and / or formed integrally with the housing half.

Furthermore, it can be provided that at least part of the first discharge section, at least part of the second discharge section and / or at least part of the flow deflection section is formed by a single one of the housing halves or is formed integrally with a housing half.

The housing is preferably formed of a plastic material or comprises a plastic material.

In particular, it can be provided that the housing comprises two housing halves, which are designed as injection-molded components.

The two housing halves are in particular plastic injection-molded components.

It can be provided that the clean gas flow in the first discharge section against the direction of gravity can be guided upwards, in particular to over an upper edge of the rotary separator.

In the second discharge section, the clean gas flow is preferably feasible downwards in the direction of gravity.

It may be favorable if the clean gas flow can be deflected by at least approximately 180 ° by means of the flow deflection section.

It may be advantageous if the clean gas flow in the first discharge section can be guided or guided essentially in the form of a ring or cylinder jacket or cone jacket.

The clean gas flow is preferably substantially cylindrical or conically guided or guided in the second discharge section.

It may be advantageous if the clean gas flow can be converted by means of the Strömungsumlenkabschnitts of an annular or cylinder jacket-shaped or cone-shaped current in the first discharge in a cylindrical or conical flow in the second discharge section.

The Strömungsumlenkabschnitt is preferably formed in sections of a housing half and sections of a fixed or definable on the housing half cover element.

The cover element may for example be fixed positively and / or non-positively on the housing half, for example by means of a clip connection, a welded connection and / or a snap-hook connection.

In one embodiment of the invention, it may be provided that the flow deflection section comprises a pressure regulating valve.

By means of such a pressure regulating valve, in particular a fluid connection between the first discharge section and the second discharge section is selectively releasable or lockable, in particular depending on prevailing pressure conditions in the first discharge section, in the second discharge section and / or in an environment of the separation device.

A pressure regulating valve may be provided, in particular, when the separating device is used in or on a motor device with a closed crankcase ventilation. A pressure control valve may preferably be dispensable if the separation device is used in or on a motor device with (to the environment) open crankcase ventilation.

It can be advantageous if the first discharge section and / or the second discharge section and / or the flow deflection section comprise one or more filling elements and / or separating elements.

A filling element and / or a separating element can be, for example, a fleece, a filter element or another element through which it can flow.

A separating element can furthermore be, for example, a baffle element or another flow baffle element.

By means of one or more spacers is preferably a distance between the one or more filling elements and / or the one or more deposition elements on the one hand and one or more the first discharge section and / or the second discharge section forming walls on the other hand produced.

A filling element and / or a separating element is in particular a coalescing element, for example from a coalescing medium, in which impurities entrained in the gas flow, in particular liquid droplets, are deposited.

It can be advantageous if a surface of the first discharge section, of the deflection section and / or of the second discharge section facing the clean gas flow to be discharged has a coating or other surface treatment. In particular, an adhesion-reducing coating and / or surface treatment can be provided in order to promote the drainage of impurities, in particular liquids.

In an embodiment of the invention it can be provided that the separation device comprises a separation wall surrounding the separation space, which comprises at least one run-off edge for interrupting an otherwise substantially circular-cylindrical inner surface of the separation wall.

The run-off edge preferably forms an obstacle to a peripheral flow which circulates in the circumferential direction relative to the rotational axis of the rotary separator, which arises in particular due to the rotation of the rotary separator and the gas flow generated thereby.

The run-off edge preferably runs essentially obliquely to the circumferential direction and / or obliquely to the axis of rotation.

However, it can also be provided that the drainage edge runs parallel to the axis of rotation and / or perpendicular to the circumferential direction.

The separating wall, which surrounds the separating space, is preferably at least approximately cylindrical-jacket-shaped, in particular apart from a bulge forming at least a part of the first discharge section and / or apart from the at least one discharge edge.

Due to the outflow edge, there is preferably a local accumulation of impurities, in particular liquid, along the circumferential direction of the separation wall, which facilitates downflow in the direction of gravity.

The first discharge section and / or the second discharge section are preferably slightly conical, at least in sections, in particular in order to facilitate demolding during production in the injection molding process.

The separation device is preferably an oil separation device for separating oil mist from an oil mist-containing gas stream.

Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

In the drawings show:

1 a schematic perspective view of a separation device;

2 a schematic plan view of an upper side of the separator from 1 ;

3 a schematic section through the separator 1 along the line 3-3 in 2 ;

4 an enlarged view of the area IV in 3 ;

5 a schematic perspective view of a housing half of a housing of the separator from 1 ;

6 a further schematic perspective view of the housing half 5 ;

7 a schematic perspective view of a further housing half of the housing of the separating device 1 ;

8th a schematic longitudinal section through the separating device 1 along the line 8-8 in 2 ;

9 one of the 4 corresponding schematic representation of an alternative embodiment of a discharge device of the separation device 1 ; and

10 an enlarged view of the area X in 9 , Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

One in the 1 to 8th illustrated first embodiment of a whole as 100 For example, designated separating device is an oil separator and is used to remove oil mist from a crude oil stream containing oil mist.

The separation device 100 includes a housing 102 , which in particular consists of two housing halves 104 is formed.

The housing 102 surrounds an interior 106 , which is divided in particular into several parts.

A part of the interior 106 is in particular a separation room 108 in which im assembled state of the separator 100 a rotary separator 110 rotatably arranged, in particular stored, is.

The rotary separator 110 includes in particular a stack 112 from flow elements 114 ,

About a feeder 116 the separator 100 is the rotary separator 110 preferably a contaminant-containing crude gas stream can be fed.

In particular, the raw gas stream is along an axis of rotation 118 (see in particular 8th ) centrally in the stack 112 from flow elements 114 introduced.

In the radial outward direction of the raw gas stream through the stack 112 from flow elements 114 flow, wherein impurities contained in the raw gas flow at the flow elements 114 and / or at a the separation room 108 surrounding separation wall 120 be deposited and thus separated from the gas stream.

The untreated crude gas stream is then a clean gas stream.

The rotary separator 110 is in particular on a wave 122 stored or with a shaft 122 Mistake.

Also on the wave 122 is preferably arranged a drive element 124 , For example, a turbine element 126 ,

By means of a nozzle 128 is preferably a fluid jet, in particular an oil jet, on the drive element 124 directable to the drive element 124 together with the wave 122 and the pile 112 from flow elements 114 to set in rotation.

The drive element 124 is preferably outside of the separation chamber 108 arranged, in particular to an undesirable contamination of the purified gas stream with the fluid from the nozzle 128 to avoid.

As in particular the 3 and 4 can be seen, comprises the separation device 100 preferably a discharge device 130 for discharging purified gas (clean gas), in particular for discharging the clean gas flow, out of the separation chamber 108 ,

The discharge device 130 is in particular to the separation chamber 108 arranged adjacent and / or trained.

In particular, the discharge device comprises 130 a first discharge section 132 which, for example, by a bulge 134 in the the separation room 108 surrounding separation wall 120 is formed.

The first derivation section 132 is in sections annular or cylindrical jacket-shaped or cone-shaped and formed with respect to the direction of gravity g downwards by a drainage slope 136 limited.

The drain slope 136 is in particular designed and / or arranged such that over this drainage slope 136 effluent directly into the separation chamber 108 flowing back.

The discharge device 130 further comprises a second discharge section 138 , The second discharge section 138 includes in particular a discharge nozzle 140 or discharge channel 142 , which in the first discharge section 132 protrudes and / or from the first discharge section 132 is surrounded.

The first derivation section 132 is preferably so to the separation chamber 108 arranged adjacent to that from the separation room 108 discharged gas in the radial direction to the outside of the rotary separator 110 flow away and in the first Abführabschnitt 132 can flow in.

By means of the first transfer section 132 the discharged clean gas flow is preferably at least partially directed against the direction of gravity g upwards.

The first derivation section 132 preferably ends above a top edge 144 of the pile 112 from flow elements 114 ,

The second discharge section 138 preferably starts above the top 144 of the pile 112 from flow elements 114 ,

In particular, preferably an outlet opening 146 of the first delivery section 132 and an inlet opening 148 of the second discharge section 138 above the top edge 144 of the pile 112 from flow elements 114 arranged.

The first derivation section 132 and the second discharge section 138 are preferably by means of a Strömungsumlenkabschnitts 150 fluidically interconnected.

In particular, by means of the Strömungsumlenkabschnitts 150 the first in the Abführabschnitt 132 opposite to the direction of gravity g upwardly guided clean gas flow deflected and in the direction of gravity g down to the second discharge section 138 be initiated.

By means of the Strömungsumlenkabschnitts 150 Thus, in particular, a flow deflection of 180 ° is possible.

Further, by means of the Strömungsumlenkabschnitts 150 preferably the first annular or cylinder jacket-shaped or cone-shaped clean gas flow in the first discharge section 132 centrally merged and as a cylindrical or conical gas flow through the second discharge section 138 dissipated.

The second discharge section 138 is preferably formed approximately hollow cylindrical, in particular to enable a simplified production, a slightly conical inner shape and / or outer shape can be provided.

At the inlet opening 148 opposite end of the second Abführabschnitts 138 lies the outlet opening 152 of the second discharge section 138 , via which the clean gas stream for further use or cleaning supplied or to the environment of the separation device 100 can be delivered.

The housing halves 104 of the housing 102 the separator 100 are in particular designed as one-piece plastic injection-molded components.

The first derivation section 132 , the second execution section 138 and at least a part of the Strömungsumlenkabschnitts 150 are preferably part of a one-piece housing half 104 ,

To complete the Strömungsumlenkabschnitts 150 For example, a cover element 154 be provided.

This cover element 154 in particular to the first Abführabschnitt 132 and the second discharge section 138 set up and thus covers the first discharge section 132 and the second discharge section 138 especially against the direction of gravity g.

As in particular the 5 to 7 can be seen, include one or both housing halves 104 preferably in each case at least one, in particular in each case two, discharge edges 156 ,

The running edges 156 are especially at the the separation room 108 surrounding separation wall 120 educated.

The running edges 156 form an obliquely or perpendicular to a circumferential direction of the separation chamber 108 running obstacle.

By means of the drainage edge 156 can be effected that a circulating flow of impurities, in particular liquid, such as oil, which due to the rotation of the rotary separator 110 in the separation room 108 along the separation wall 120 results, is interrupted locally. They are in the area of the drainage edge 156 each accumulating liquid can then run down easier in the direction of gravity g.

In particular, by means of the one or more trailing edges 156 prevents liquid, especially oil in the discharge device 130 , in particular in the first discharge section 132 , flows.

One in the 9 and 10 illustrated alternative embodiment of the discharge device 130 is different from the one in the 1 to 8th illustrated first embodiment essentially exclusively by the use of additional components and / or elements.

For example, it may be provided that the Strömungsumlenkabschnitt 150 the discharge device 130 a recording 158 for a valve, for example a pressure regulating valve 160 , forms or includes.

The flow deflecting section 150 can thus by means of the valve, in particular the pressure control valve 160 optionally a fluid connection between the first discharge section 132 and the second discharge section 138 release or close.

The pressure control valve 160 can in particular by suitable fluid connection to an environment of the separator 100 towards unwanted backflow or cross flows in the separator 100 prevent.

The discharge device 130 Further, for example, a filling element 162 , in particular a nonwoven, include.

The filling element 162 can, for example, in the first discharge section 132 and / or in the Strömungsumlenkabschnitt 150 be arranged and serve the additional deposition of impurities.

The filling element 162 fills, for example, the first discharge section 132 in sections.

The filling element 162 in particular can be flowed through by the clean gas flow. In particular 10 can be seen, it may be provided that the filling element 162 by means of spacers 164 from a radially outer outer wall 166 of the first delivery section 132 is kept at a distance.

In this way, in particular, a gap 168 between the filling element 162 and the outer wall 166 produced and / or maintained. This gap 168 allows in particular a drainage by means of the filling element 162 or above the filler 162 separated liquids and a flow back into the separation chamber 108 ,

Furthermore, it can be provided that the discharge device 130 one or more impact elements 170 includes.

Such impact elements 170 in particular serve to influence the flow within the discharge device 130 to ultimately an undesirable discharge of impurities, in particular liquid, via the discharge device 130 to the environment of the separator 100 to prevent.

All with regard to the 9 and 10 shown and described elements may be provided individually or in any combination with each other to the in the 1 to 8th illustrated embodiment of a separation device 100 further education.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012104598 A1 [0002]
• DE 19914166 A1 [0002]
• DE 69906019 T2 [0002]
• DE 10350562 A1 [0002]
• DE 102013207058 A1 [0002]

Claims (15)

Separating device ( 100 ) for separating impurities from a raw gas stream, comprising: - a housing ( 102 ), which has an at least approximately cylindrical separating space ( 108 ) of the separation device ( 100 ) surrounds; - one in the separation room ( 100 ) arranged rotary separator ( 110 ) for separating impurities, in particular liquid droplets, from the raw gas stream; A delivery device ( 116 ) for supplying a raw gas stream to the rotary separator ( 110 ); A discharge device ( 130 ) for discharging a clean gas flow from the separation chamber ( 108 ), wherein the discharge device ( 130 ) a first exhaustion section ( 132 ), a second exhaustion section ( 138 ) and one between the two execution sections ( 132 . 138 ) arranged Strömungsumlenkabschnitt ( 150 ). Separating device ( 100 ) according to claim 1, characterized in that the first discharge section ( 132 ) the second execution section ( 138 ) surrounds at least partially ring-shaped or cylinder jacket-shaped or cone-shaped. Separating device ( 100 ) according to one of claims 1 or 2, characterized in that the second discharge section ( 138 ) through a discharge nozzle ( 140 ) or discharge channel ( 142 ), which in the first Abführabschnitt ( 132 ) protrudes. Separating device ( 100 ) according to one of claims 1 to 3, characterized in that the first discharge section ( 132 ) at least in sections by a bulge ( 134 ) in a separating room ( 108 ) surrounding separation wall ( 120 ) is formed. Separating device ( 100 ) according to claim 4, characterized in that a first discharge section ( 132 ) in a direction of gravity (g) downwardly bounding bottom wall a drainage slope ( 136 ) or as a drainage slope ( 136 ), wherein the drainage slope ( 136 ) in the separation chamber ( 108 ) opens. Separating device ( 100 ) according to one of claims 1 to 5, characterized in that the housing ( 102 ) two housing halves ( 104 ), wherein the first discharge section ( 132 ), the second execution section ( 138 ) and / or the Strömungsumlenkabschnitt ( 150 ) by a single of the housing halves ( 104 ) is formed. Separating device ( 100 ) according to one of claims 1 to 6, characterized in that the housing ( 102 ) is formed of a plastic material. Separating device ( 100 ) according to one of claims 1 to 7, characterized in that the housing ( 102 ) two housing halves ( 104 ), which are formed as injection molded components. Separating device ( 100 ) according to one of claims 1 to 8, characterized in that the clean gas flow in the first discharge section ( 132 ) can be guided upwards against a direction of gravity (g), in particular to an upper edge ( 144 ) of the rotary separator ( 110 ). Separating device ( 100 ) according to one of claims 1 to 9, characterized in that the clean gas flow by means of the Strömungsumlenkabschnitts ( 150 ) is deflectable by at least approximately 180 °. Separating device ( 100 ) according to one of claims 1 to 10, characterized in that the clean gas flow in the first discharge section ( 132 ) is guided or guided in a substantially annular or cylinder jacket-shaped or cone-shaped manner, that the clean gas flow in the second discharge section (FIG. 138 ) is substantially ring-shaped or cylindrical or conically guided or guided and that the clean gas flow by means of the Strömungsumlenkabschnitts ( 150 ) from an annular or cylinder jacket-shaped or cone-shaped current in the first discharge section ( 132 ) in a cylindrical or conical flow in the second discharge section ( 138 ) is convertible. Separating device ( 100 ) according to one of claims 1 to 11, characterized in that the flow deflection section ( 150 ) sections of a housing half ( 104 ) and sections of one on the housing half ( 104 ) fixed or definable cover element ( 154 ) is formed. Separating device ( 100 ) according to one of claims 1 to 12, characterized in that the flow deflecting section ( 150 ) a pressure regulating valve ( 160 ). Separating device ( 100 ) according to one of claims 1 to 13, characterized in that the first discharge section ( 132 ) and / or the second execution section ( 138 ) and / or the Strömungsumlenkabschnitt ( 150 ) one or more filling elements ( 162 ) and / or separating elements. Separating device ( 100 ) according to one of claims 1 to 14, characterized in that a the separation space ( 108 ) surrounding separation wall ( 120 ) at least one run-off edge ( 156 ) for interrupting an otherwise substantially circular cylindrical inner surface of the separation wall ( 120 ).

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