EP0683322A2 - Dispositif de pompage - Google Patents

Dispositif de pompage Download PDF

Info

Publication number: EP0683322A2
Authority: EP; European Patent Office
Prior art keywords: pump unit; separating; unit according; separating container; pump
Prior art date: 1994-05-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP95106941A

Other languages

German (de)

English (en)

Other versions

EP0683322A3 (fr

EP0683322B1 (fr

Inventor

Günther Dipl. Ing. Holzheimer (FH)

Hans-René Dipl. Ing. Neubauer

Manfred Dipl. Ing. Stretz (Fh)

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Siemens AG

Siemens Corp

Original Assignee

Siemens AG

Siemens Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1994-05-19

Filing date

1995-05-08

Publication date

1995-11-22

1995-05-08 Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG

1995-11-22 Publication of EP0683322A2 publication Critical patent/EP0683322A2/fr

1996-01-31 Publication of EP0683322A3 publication Critical patent/EP0683322A3/fr

1997-08-06 Application granted granted Critical

1997-08-06 Publication of EP0683322B1 publication Critical patent/EP0683322B1/fr

2015-05-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets

Definitions

the invention relates to a pump unit according to the preamble of claim 1.
Such a pump unit is known from DE-A-24 60 268.
the separator tank is designed in the form of a horizontal U on which the pump unit is placed.
the gas-liquid mixture expelled by the liquid ring pump is introduced into the separating container at the free end of one U-leg via an inlet opening provided there and at the free end of the other U-leg the gas emerges from the separating container via a corresponding outlet opening.
this separating container there is a continuous distance between the inlet opening and the outlet opening via the gas space of the separating container, over which the airborne sound generated by the pump can spread undamped.
the invention has for its object to design a pump unit of the generic type so that both effective sound damping and starting the liquid ring pump is possible without additional measures.
the problem is solved by the features specified in the characterizing part of claim 1.
the design of the separating tank in the form of a standing L or U ensures that the horizontally lying part of the separating tank is completely filled with operating fluid.
this flows through the liquid contained in the separating container at least partially in a horizontal or approximately horizontal direction. This leads to a slowdown in the flow velocity.
This reduced flow speed the long path of the gas through the liquid to the entry into the gas space of the separating tank and the multiple gas deflection result in a very high level of sound damping of the airborne sound acting at the blade frequency.
the structure-borne noise is strongly damped by the separating container, which is designed as a chamber and partially filled with liquid. So no structure-borne sound-breaking connecting elements to the foundation and between the pipe parts to be connected to the inlet and outlet opening of the liquid ring pump are required.
the separator tank Due to the L- or U-shape of the separator tank, which also extends in the vertical direction, it is possible to select the liquid level in the separator tank so that the liquid ring pump is still partially filled with liquid while the unit is at a standstill. Because of this partial filling, the liquid ring pump can thus be started up without special additional measures.
the one or more vertical legs of the separating container form mechanical protection for the pump unit mounted on the separating container.
the outlet opening is advantageously provided on the head side of the or one of the vertical legs of the L-shaped or U-shaped separating tank. This results in a space only filled with gas in the separating tank above the level of the liquid.
the mechanical strength of the unit can be increased in that the front and / or rear of the separating container is closed off by means of a wall part in the case of a U-shaped design. Furthermore, in such an embodiment of the pump unit, the pump unit is enclosed on at least three sides by the separating container, which results in improved sound insulation.
the wall part is provided with an opening enclosing the fan hood of the drive motor, then this wall part simultaneously forms a barrier between the intake and exhaust side of the motor fan.
the wall part is designed as a chamber part connecting the two legs of the separating container, the flow connection between the two vertical legs of the U-shaped separating container is given without separate components.
the peripheral wall of the opening provided in it can form the air duct for the fan wheel of a cooling fan.
Both the mechanical protection for the pump unit and the soundproofing of the pump unit are further improved in that, in the case of a U-shaped design of the separating container, a cover part is placed on its two vertical legs.
the separation of liquid droplets entrained in the gas bubbles and the soundproofing of the gas noises can be further improved by installing one or more baffles in the separation container on the route between its inlet and its outlet. Such baffles also calm the liquid level.
cooling and / or stiffening ribs are provided on the separating tank. Such ribs can simultaneously fulfill the dual function of cooling and stiffening the separating tank.
the wall part 9 is designed as a hollow chamber part, so that a flow connection between the two vertical U-legs 2 is established via this wall part 9.
Cooling or stiffening ribs 12 are formed on the outside of the vertical U-legs 2.
the liquid ring pump 5 has an intake port 13 and an outlet port 14.
the outlet connection 14 of the liquid ring pump 5 is connected to the first pipe connection 7 of the separating container 1 via corresponding pipe parts 15.
a drain port 16 is arranged thereon.
the liquid ring pump 5 Via its intake port 13, the liquid ring pump 5 sucks in the gas to be compressed, which after compression in the liquid ring pump 5 is expelled via its outlet port 14 together with operating liquid and introduced via the pipe parts 15 and the first pipe port 7 into the separating container 1 below the liquid level.
the gas flows through the horizontal U-yoke 3 of the separating tank 1, and then in the vertical U-legs 2 rise in the space above the liquid level of the liquid contained in the separating container 1, which is only filled with gas.
the flow velocity of the gas When flowing through the horizontally lying U-yoke 3, the flow velocity of the gas is greatly reduced, as a result of which the separation of liquid particles carried in drop form in the gas bubbles is very favored. In this way and the subsequent passage of the gas through the space above the liquid level, a separation of the liquid particles carried in droplet form of almost 100% is achieved.
the U-space of the separating container 1 which is already largely closed by the vertical U-legs 2 and the wall part 9, is also provided with a cover part placed on the head side of the U-legs 2, then this provides very good insulation for the drive motor 4 Achieve noises. In addition, there is good guidance of the cooling air blown by the motor fan over the motor surface.
the pump unit consisting of the drive motor 4 and the liquid ring pump 5 is already mounted on the separating tank 1 by the manufacturer. This means that the pump set can be supplied as a complete unit and only needs to be set up and electrical and on-site to be connected in terms of flow. Any other fastening work is no longer required.
the pump unit By installing the pump unit in the U-space of the separating container 1, there is also a high level of mechanical protection for the pump unit.
the arrangement of the separating container 1 or at least parts thereof below the pump unit also offers the possibility of using this container as a liquid storage tank.
the liquid in the separating container 1 can form the necessary liquid supply. It is then only necessary to replenish the amount of liquid lost due to saturation of the expelled gas.
the liquid ring pump 5 empties at standstill to the level of the liquid level in the separating container 1.
the liquid ring pump 5 is therefore no longer completely filled with liquid during standstill, as is the case with the pump unit according to the prior art due to the placement of the Separator tank above the liquid ring pump is the case. Because of the lower filling of the liquid ring pump, starting it up again when the pump unit is restarted is made considerably easier, since less or no liquid has to be pumped out of the pump in order to achieve its functionality. This greatly reduces the load on the pump when starting up.
the separating container 1 is U-shaped or horseshoe-shaped and is mounted on a base plate 17.
the area 18 of the base plate 17 extending between the two U-legs serves for the arrangement of the drive motor and the Liquid ring pump existing pump unit.
the first pipe socket 7 forming the inlet of the separating container 1 is provided in the lower region of a U-leg 2.
the second pipe socket 8 forming the outlet is arranged on the top of the other U-leg. Since the flow connection of the two U-legs takes place solely via the wall part 9 forming the yoke of the U-shaped separating container 1, there is a very long flow path between the two pipe sockets 7 and 8. This is particularly advantageous for soundproofing.
liquid ring pump 5 is only partially filled with liquid during the standstill, so that restarting is also facilitated here.
both the separating container 1 and the pump unit 4/5 can already be mounted on the base plate 17 by the manufacturer, a ready-to-use unit is again available which can be set up by the operator of the pump unit without further measures.
the wall 19 of the opening 10 as an air duct for the fan wheel of the engine cooling fan.
the wall part 9 as a chamber part connecting the two U-legs 2
a corresponding depth of this wall part 9 results, so that the opening 10 can perform the function of a guide channel, in particular when the fan wheel 20 is an axial fan wheel.
a separate fan cover is therefore no longer required for the fan wheel 20.
Such a cooler 21 can be combined with the pump unit to an operational unit in that the horizontal part 3 of the Separating tank 1 is axially extended beyond the drive motor 4 and the fan 20 arranged on the relevant end face thereof and the cooler 21 is arranged on this extended part 22.
the fan 20 of the drive motor 4 can simultaneously serve to promote the cooling air required for the cooler 21.
the cooler 21 can then be inserted between the legs 2 and receives mechanical protection from them.
the leadership of the cooling air of the cooler 21 can be taken over by the legs 2, in particular in the U-shaped configuration of the separating container 1. If the separating container 1 is then still covered by a cover part resting on the vertical legs 2, a completely closed duct for the cooling air flowing through the cooler 21 is achieved.
the vertical leg 2 corresponds functionally to the two vertical legs 2 of the U-shaped separating container 1 and the horizontal leg 3a corresponds to the horizontal U-yoke 3 of the U-shaped separating container 1.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Compressor (AREA)
Applications Or Details Of Rotary Compressors (AREA)
Eye Examination Apparatus (AREA)
Non-Positive Displacement Air Blowers (AREA)

EP95106941A 1994-05-19 1995-05-08 Dispositif de pompage Expired - Lifetime EP0683322B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4417607A DE4417607C1 (de)	1994-05-19	1994-05-19	Pumpenaggregat
DE4417607		1994-05-19

Publications (3)

Publication Number	Publication Date
EP0683322A2 true EP0683322A2 (fr)	1995-11-22
EP0683322A3 EP0683322A3 (fr)	1996-01-31
EP0683322B1 EP0683322B1 (fr)	1997-08-06

Family

ID=6518514

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95106941A Expired - Lifetime EP0683322B1 (fr)	1994-05-19	1995-05-08	Dispositif de pompage

Country Status (5)

Country	Link
US (1)	US5542822A (fr)
EP (1)	EP0683322B1 (fr)
JP (1)	JP3769047B2 (fr)
AT (1)	ATE156571T1 (fr)
DE (2)	DE4417607C1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19711591A1 (de) *	1997-03-20	1998-09-24	Fluidtech Gmbh	Fluidkühlvorrichtung
DE19829446A1 (de) *	1998-07-01	2000-01-13	Siemens Ag	Verdichteraggregat
US6405748B1 (en)	1999-03-22	2002-06-18	David Muhs	Trailer and fuel tank assembly
US6390768B1 (en)	1999-03-22	2002-05-21	David Muhs	Pump impeller and related components
US6315524B1 (en)	1999-03-22	2001-11-13	David Muhs	Pump system with vacuum source
US6692234B2 (en) *	1999-03-22	2004-02-17	Water Management Systems	Pump system with vacuum source
DE10040235C2 (de) *	2000-08-17	2003-04-24	Siemens Ag	Flüssigkeitsringpumpe
DE10156180B4 (de) *	2001-11-15	2015-10-15	Oerlikon Leybold Vacuum Gmbh	Gekühlte Schraubenvakuumpumpe
US20040202549A1 (en) *	2003-01-17	2004-10-14	Barton Russell H.	Liquid ring pump
US7878768B2 (en)	2007-01-19	2011-02-01	David Muhs	Vacuum pump with wear adjustment
EP2230406A3 (fr)	2009-01-31	2014-12-03	Roland Empel	Système de pompe à gaz à anneau liquide doté d'une fondation de machine en matériau de base de type béton
US8998586B2 (en) *	2009-08-24	2015-04-07	David Muhs	Self priming pump assembly with a direct drive vacuum pump
US20130000281A1 (en) *	2011-06-30	2013-01-03	Caterpillar Inc.	Def pump mounted to tank
US20130189128A1 (en) *	2012-01-25	2013-07-25	Compressor Systems, Inc.	Compression system
DE202012005755U1 (de) *	2012-06-12	2013-09-16	Speck Pumpen Vakuumtechnik Gmbh	Pumpenaggregat

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1714735A (en) *	1927-07-18	1929-05-28	Minette E Skidmore	Vacuum and boiler-feed pump
DE969928C (de) *	1953-12-18	1958-07-31	Siemens Ag	Fluessigkeitsring-Saugpumpe
DE1293386B (de) *	1960-05-24	1969-04-24	Becker Gmbh Geb	Drehkolbenverdichter oder -Vakuumpumpe
DE2217022C3 (de) *	1972-04-08	1975-03-27	Sihi Gmbh & Co Kg, 2210 Itzehoe	Flüssigkeitsring-Vakuumpumpe mit Umlaufbehälter
DE2460268B2 (de) *	1974-12-19	1977-02-03	Siemens AG, 1000 Berlin und 8000 München	Fluessigkeitsabscheider
NL7606975A (nl) *	1975-09-22	1977-03-24	Siemens Ag	Vloeistofpompopstelling.
CN1005642B (zh) *	1984-12-07	1989-11-01	西门子公司	真空设备
JPS62291487A (ja) *	1986-06-10	1987-12-18	Fuji Electric Co Ltd	水封式ポンプ装置
JPS63186985A (ja) *	1987-01-29	1988-08-02	Fuji Electric Co Ltd	水封式ポンプ装置
SU1707249A1 (ru) *	1990-01-08	1992-01-23	Красноярский инженерно-строительный институт	Жидкостно-кольцева вакуумна установка
DE9210277U1 (de) *	1992-07-31	1992-10-15	Brey, Helmut, 8940 Memmingen	Vakuumanlage

1994
- 1994-05-19 DE DE4417607A patent/DE4417607C1/de not_active Expired - Fee Related
1995
- 1995-05-08 EP EP95106941A patent/EP0683322B1/fr not_active Expired - Lifetime
- 1995-05-08 DE DE59500462T patent/DE59500462D1/de not_active Expired - Lifetime
- 1995-05-08 AT AT95106941T patent/ATE156571T1/de not_active IP Right Cessation
- 1995-05-17 JP JP14141095A patent/JP3769047B2/ja not_active Expired - Fee Related
- 1995-05-17 US US08/442,732 patent/US5542822A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ATE156571T1 (de)	1997-08-15
JP3769047B2 (ja)	2006-04-19
EP0683322A3 (fr)	1996-01-31
DE4417607C1 (de)	1995-10-19
JPH07310688A (ja)	1995-11-28
DE59500462D1 (de)	1997-09-11
US5542822A (en)	1996-08-06
EP0683322B1 (fr)	1997-08-06

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