EP1141611B1 - System zur pulsationsfreien förderung von flüssigkeiten - Google Patents
System zur pulsationsfreien förderung von flüssigkeiten Download PDFInfo
- Publication number
- EP1141611B1 EP1141611B1 EP99957334A EP99957334A EP1141611B1 EP 1141611 B1 EP1141611 B1 EP 1141611B1 EP 99957334 A EP99957334 A EP 99957334A EP 99957334 A EP99957334 A EP 99957334A EP 1141611 B1 EP1141611 B1 EP 1141611B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- tanks
- storage tank
- small
- liquid
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 abstract description 18
- 239000004065 semiconductor Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0396—Involving pressure control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2278—Pressure modulating relays or followers
- Y10T137/2365—Plural series units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4673—Plural tanks or compartments with parallel flow
Definitions
- the present invention relates to a liquid delivery system for pulsation-free delivery of liquids used for high purity, liquid chemicals in the Semiconductor industry can be used.
- a liquid delivery system which shows the features of the preamble of claim 1 and which an arrangement for damping vibrations in closed liquid conveying systems having. It has a flow line in a circulation system, a consumer, a return line and a circulation pump on. To absorb pressure surges if the circulation pump fails are outside the actual circulation system in front of the circulation pump series-connected, with check valves Damper tank connected. In this system the real one Pumping of liquids is effected by the circulation pump.
- the object of the present invention was therefore to provide a system to provide which as few moving parts as possible, such.
- the task is solved by a liquid delivery system pulsation-free delivery, which liquids in a recirculation cycle promotes and has at least one intermediate container.
- the object of the invention is achieved by a liquid delivery system for the pulsation-free delivery of liquids according to claim 1.
- the present invention relates to such a pulsation-free Liquid delivery system in its special configurations, like it characterized by claims 2 to 7, as well as a method to operate a liquid circuit in this conveyor system, which characterized by claims 8 to 14.
- At least two are parallel switched small pressure vessels integrated, which by means of a Pressure difference to the storage tank convey the liquid chemicals and replace a pump.
- the one of the small containers (D1 or D2) connected in parallel in the filled one Condition a pressure on, which results from a height difference of at least 0.5 m between the storage tank (B1) and the height of the small one Containers are located at a lower level than the storage tank.
- Each one of the small pressure vessels becomes the storage vessel connected to it filled, because of a pressure difference resulting from a height difference of at least 0.5 m between the storage container and the parallel pressure vessels, which are on a lower level located as the storage tank, while the other small pressure vessel is pressurized and the liquid from it is promoted starting in the circulation, with the regulation of the liquid flow done by electronically controllable valves.
- the one of the connected in parallel small container is pressurized from a Height difference of 1 m between the storage tank and the two parallel switched containers results.
- the pressure containers can be filled from the storage container be done by passing the liquid through a slight positive pressure communicating pipelines is conveyed into the pressure vessel.
- the Pressure is reduced to the internal pressure of the storage container (B1).
- This pressure reduction can be done by a valve, an orifice plate or a Pipe narrowing.
- a development of the invention can in particular done by a conveyor system, the storage container one Has overpressure greater than or equal to 0.05 bar, the small pressure vessel are designed as containers for high pressure.
- the pressure drops depending on the flow rate.
- the residual pressure can, as stated above, by a Valve, an orifice or a pipe constriction on the internal pressure of the Storage or storage container can be reduced.
- the liquid delivery system according to the invention enables the delivery of liquids in a recirculation circuit, with only one larger storage container or storage container (day tank) is required.
- a particular advantage of this conveyor system is that a pump can two small pressure vessels connected in parallel is replaced.
- the other promotes by applying a higher overpressure (2 -6 bar) to the storage tank the liquid in the circuit.
- This can be done by appropriately switching electronically controllable valves accomplish.
- the pressure to the internal pressure of the storage container B1 by means of a valve, a Aperture or pipe constriction reduced. Filling the storage tank from the outside by means of pumps (semi-pump system) or by Printing (printing system done).
- the system combines the advantages of pumping systems through the one larger pressure vessels can be saved with those of the pressure systems.
- the latter are characterized by a continuous flow and due to the lack of moving wear parts.
- This system is advantageous when used as a supply system for electronic chemicals, since there are significant improvements compared to particle reduction Pump systems were found.
- Another essential one The advantage over known supply systems is the low pulsation Driving style of the entire system.
- the pumps When using pump systems with a recirculation circuit, the pumps are in the semiconductor industry around the clock in operation (typical value: 99.9% up-time a year). Through this continuous use, often in addition In the presence of very aggressive chemicals, the pumps need more and more Maintenance. In order to avoid interruptions in the chemical supply, the pumps must always be designed redundantly, d. H. to have to in the event of a malfunction, pumps can be installed in parallel, which automatically replace them be switched on.
- the semipump system according to the invention has a significant impact fewer wear parts and the maintenance effort is corresponding lower.
- the inventive one System compared to vacuum pressure systems, the inventive one System the following advantages:
- B1 represents a storage container or mixing container which can be filled by pumping or pressure.
- B1 and the pressure vessels D1 and D2 are on different levels, so that there is a minimal static height difference between the level of D1 max (D2) max and that of the vessel B1 min , which is sufficient to fill the pressure vessel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Pipeline Systems (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
- Das Fördersystem besitzt außer den Ventilen keine beweglichen Teile. Auf Pumpen wird innerhalb des Rezirkulationskreislaufes verzichtet. Auf diese Weise ist das System im Betrieb deutlich sicherer in Bezug auf Störungsanfälligkeit. Es ist weniger Service notwendig und es ergeben sich geringere Standzeiten, in denen Verschleißteile wie z.B. Pumpenteile ausgetauscht werden müssen
- Da die Flüssigkeit nicht durch die mechanisch beweglichen Teile der Pumpe gefördert wird , wie z.B. beim Faltenbalg-, beziehungsweise bei Membran- oder Kreiselpumpen, werden weniger Partikel in die Flüssigkeit abgegeben, was bei der Förderung von Elektronikchemikalien von besonderem Vorteil ist.
- C1
- Chemikalienzuleitung (aus Misch- und Transportbehälter)
- RK
- Rezirkulationskreislauf
- B1
- Lagerbehälter (Day-Tank)
- D1, D2
- Druckbehälter (5 bis 200 I, bis 6 bar)
- V1.1, V1.2
- Befüllungsventile
- V2.1, V2.2
- Ventile auf Druckseite
- V3.1, V3.2
- N2-Einlaßventile
- V4.1, V4.2
- N2-Entlüftungsventile
- V5
- Ventil zum Steuern der Durchflußmenge oder des Durchflusses
- V6
- Ventil zum POU
- POU
- Chemikalienabnahmestelle (point of use)
- F
- Filtrationselemente
- S
- Füllstandssensor (optional)
Claims (13)
- Flüssigkeitsfördersystem zur pulsationsfreien Förderung von Flüssigkeiten mit einem Rezirkulationskreislauf, einem Speicher- oder Lagerbehälter (B1) und mit mindestens zwei parallel geschalteten Druckbehältern (D1, D2), dadurch gekennzeichnet, dass der Rezirkulationskreislauf (RK)enthält.a) den Speicher- oder Lagerbehälter (B1) sowieb) die mindestens zwei parallel geschalteten kleinen Druckbehälter (D1, D2), welche ein Volumen von 1-200 l aufweisen und welche mittels einer Druckdifferenz zum Speicher- oder Lagerbehälter die Flüssigkeit fördern und eine Pumpe ersetzen, wobei die beiden kleinen Druckbehälter im Betrieb abwechselnd mit Druck beaufschlagt werden, wodurch ein kontinuierlicher Flüssigkeitsstrom erzeugt wird und wobei die Regelung des Flüssigkeitsstroms durch elektrisch steuerbare Ventile (V 1.1, V 1.2, V 2.1, V 2.2, V 5 , V 6) erfolgt,
- Fördersystem gemäß Anspruch 1, dadurch gekennzeichnet dass der Rezirkulationskreislauf (RK) ein Mittel zur Druckreduzierung im Rücklauf zum Speicher- oder Lagerbehälter (B1) aufweist.
- Fördersystem gemäß Anspruch 2, dadurch gekennzeichnet daß sich zur Reduzierung des Drucks im Rezirkulationskreislauf (RK) ein Ventil, eine Blende oder eine Rohrverengung im Rücklauf zum Speicher- oder Lagerbehälter (B1) befindet.
- Fördersystem gemäß der Ansprüche 1 - 2, dadurch gekennzeichnet, dass der Speicher- oder Lagerbehälter (B1) für einen Überdruck größer gleich 0,1 bar ausgelegt ist und die Druckbehälter (D1 und D2) als Behälter zum Betrieb bei Überdruck von 2 bis 6 bar ausgelegt sind.
- Fördersystem gemäß der Ansprüche 1 - 2, dadurch gekennzeichnet, dass im Rezirkulationskreislauf (RK) Filter (F) eingebaut sind.
- Fördersystem gemäß einem oder mehreren der Ansprüche 1 - 5, dadurch gekennzeichnet, dass der Speicher- oder Lagerbehälter (B1) auf einer höheren Ebene steht als die parallel geschalteten Behälter (D1 und D2), so dass sich zwischen dem Speicher- oder Lagerbehälter (B1) und den parallel geschalteten Behältern (D1 und D2) eine Höhendifferenz ergibt.
- Verfahren zum Betrieb eines Flüssigkeitskreislaufs in dem Flüssigkeitsfördersystem gemäß Anspruch 1, dadurch gekennzeichnet, dass von den mindestens zwei parallel geschalteten kleinen Druckbehältem (D1, D2) ein Druckbehälter befüllt wird, während der andere mit einem Überdruck im Vergleich zum Speicher- oder Lagerbehälter (B1) beaufschlagt wird und die Flüssigkeit im Kreislauf fördert, wobei die Regelung des Flüssigkeitsstroms durch die elektrisch steuerbaren Ventile erfolgt.
- Verfahren gemäß Anspruch 7, dadurch gekennzeichnet, dass die kleinen Druckbehälter (D1 und D2) abwechselnd mit Druck beaufschlagt werden, wodurch ein kontinuierlicher Flüssigkeitsstrom erzeugt wird.
- Verfahren gemäß der Ansprüche 7, bis 8, dadurch gekennzeichnet, dass die kleinen Behälter (D1 und D2) abwechselnd mit einem Überdruck von 2 bis 6 bar beaufschlagt werden.
- Verfahren gemäß der Ansprüche 7 bis 8, dadurch gekennzeichnet, dass der in einem der parallel geschalteten kleinen Behälter (D1 oder D2) einen Druck eingestellt wird, der sich aus einer Höhendifferenz zwischen dem Speicher- oder Lagerbehälter (B1) und der Höhe der kleinen Behälter ergibt, welche sich auf einer tieferen Ebene befinden als der Lagertank.
- Verfahren gemäß Anspruch 10, dadurch gekennzeichnet, dass in einem der parallel geschalteten kleinen Behälter (D1 oder D2) ein Druck eingestellt wird, der sich aus einer Höhendifferenz von mindestens 0,5 m ergibt.
- Verfahren gemäß Anspruch 10, dadurch gekennzeichnet, dass der eine der parallel geschalteten kleinen Behältern (D1 oder D2) einen Druck aufweist, der sich aus einer Höhendifferenz von bis zu 1 m ergibt.
- Verfahren gemäß Anspruch 10, dadurch gekennzeichnet, dass die Befüllung der Druckbehälter (D1, D2) aus dem Speicher- oder Lagerbehälter (B1) erfolgt, indem die Flüssigkeit mittels leichtem Überdruck durch kommunizierende Rohrleitungen in die Druckbehälter gefördert wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19857593A DE19857593A1 (de) | 1998-12-14 | 1998-12-14 | System zur pulsationsfreien Förderung von Flüssigkeiten |
| DE19857593 | 1998-12-14 | ||
| PCT/EP1999/009408 WO2000036329A1 (de) | 1998-12-14 | 1999-12-02 | System zur pulsationsfreien förderung von flüssigkeiten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1141611A1 EP1141611A1 (de) | 2001-10-10 |
| EP1141611B1 true EP1141611B1 (de) | 2003-11-05 |
Family
ID=7891006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99957334A Expired - Lifetime EP1141611B1 (de) | 1998-12-14 | 1999-12-02 | System zur pulsationsfreien förderung von flüssigkeiten |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6623248B1 (de) |
| EP (1) | EP1141611B1 (de) |
| JP (1) | JP2002532656A (de) |
| AT (1) | ATE253709T1 (de) |
| DE (2) | DE19857593A1 (de) |
| TW (1) | TW469323B (de) |
| WO (1) | WO2000036329A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6955529B2 (en) * | 2003-12-11 | 2005-10-18 | Ho Lee Co., Ltd. | Bidirectional air pump assembly for inflatable objects |
| US7275474B2 (en) * | 2005-05-31 | 2007-10-02 | Parker-Hannifincorporation | Optical position sensing and method |
| US7540143B1 (en) | 2005-06-30 | 2009-06-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Boiler and pressure balls monopropellant thermal rocket engine |
| US9765769B2 (en) | 2015-04-22 | 2017-09-19 | C. Anthony Cox | Sterile liquid pump with single use elements |
| US10030674B2 (en) | 2015-04-22 | 2018-07-24 | C. Anthony Cox | Sterile liquid pump with single use elements |
| CN109268687B (zh) * | 2018-10-16 | 2024-10-29 | 迈得医疗工业设备股份有限公司 | 供液装置 |
| US11761582B2 (en) * | 2019-09-05 | 2023-09-19 | Dhf America, Llc | Pressure regulation system and method for a fluidic product having particles |
| CN114636106A (zh) * | 2022-03-15 | 2022-06-17 | 中国电子科技集团公司第十研究所 | 一种便携式移动排液装置 |
| JP7223195B1 (ja) | 2022-06-24 | 2023-02-15 | 岩井ファルマテック株式会社 | 送液システム |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1600505A (en) * | 1921-10-01 | 1926-09-21 | Sullivan Machinery Co | Control mechanism |
| US2192727A (en) * | 1937-03-15 | 1940-03-05 | Stuart A Courtis | Fluid circulating system |
| GB552771A (en) * | 1941-10-21 | 1943-04-23 | William King Porteous | Improvements relating to control systems for regulating the co-ordinated filling and emptying of a number of tanks or containers |
| US2446358A (en) * | 1946-08-03 | 1948-08-03 | Fluor Corp | Liquid seal pulsation dampener |
| US3005417A (en) * | 1957-04-26 | 1961-10-24 | United States Steel Corp | Pneumatic system for pumping liquid |
| US3524714A (en) * | 1968-10-30 | 1970-08-18 | Us Air Force | Pneumatic bellows pump |
| GB1490996A (en) * | 1975-04-03 | 1977-11-09 | Secretary Industry Brit | Hydraulic pressure surge protection devices |
| DE2706484C3 (de) * | 1977-02-16 | 1981-12-24 | Messer Griesheim Gmbh, 6000 Frankfurt | Vorrichtung zur Dämpfung von Pulsationen in einer Anlage zur Verdampfung tiefsiedender verflüssigter Gase |
| US4323452A (en) * | 1979-11-01 | 1982-04-06 | Caterpillar Tractor Co. | Pumpless flow system for a corrosive liquid |
| HU191726B (en) * | 1984-11-29 | 1987-03-30 | Energiagazdalkodasi Intezet | Connection arrangement of damping dashpot |
| DE8603263U1 (de) * | 1986-02-07 | 1986-05-07 | Bauschik, Karl, 7000 Stuttgart | Wiederlösbare Haft-Markierungsscheibe |
| US5148945B1 (en) * | 1990-09-17 | 1996-07-02 | Applied Chemical Solutions | Apparatus and method for the transfer and delivery of high purity chemicals |
| US5251852A (en) * | 1991-09-06 | 1993-10-12 | General Electric Company | Thermal fuel transfer and tank isolation to reduce unusable fuel |
| US5722447A (en) * | 1994-04-29 | 1998-03-03 | Texas Instruments Incorporated | Continuous recirculation fluid delivery system and method |
| US5832948A (en) * | 1996-12-20 | 1998-11-10 | Chemand Corp. | Liquid transfer system |
| KR100294808B1 (ko) * | 1999-03-18 | 2001-07-12 | 임정남 | 자동 공압펌프 |
-
1998
- 1998-12-14 DE DE19857593A patent/DE19857593A1/de not_active Withdrawn
-
1999
- 1999-12-02 EP EP99957334A patent/EP1141611B1/de not_active Expired - Lifetime
- 1999-12-02 WO PCT/EP1999/009408 patent/WO2000036329A1/de not_active Ceased
- 1999-12-02 JP JP2000588535A patent/JP2002532656A/ja active Pending
- 1999-12-02 DE DE59907661T patent/DE59907661D1/de not_active Expired - Fee Related
- 1999-12-02 US US09/857,692 patent/US6623248B1/en not_active Expired - Fee Related
- 1999-12-02 AT AT99957334T patent/ATE253709T1/de not_active IP Right Cessation
- 1999-12-08 TW TW088121512A patent/TW469323B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW469323B (en) | 2001-12-21 |
| JP2002532656A (ja) | 2002-10-02 |
| EP1141611A1 (de) | 2001-10-10 |
| DE19857593A1 (de) | 2000-06-15 |
| WO2000036329A1 (de) | 2000-06-22 |
| DE59907661D1 (de) | 2003-12-11 |
| US6623248B1 (en) | 2003-09-23 |
| ATE253709T1 (de) | 2003-11-15 |
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