EP2375027B1 - Récipient d'équilibrage pour circuits de refroidissement - Google Patents
Récipient d'équilibrage pour circuits de refroidissement Download PDFInfo
- Publication number
- EP2375027B1 EP2375027B1 EP11000555.0A EP11000555A EP2375027B1 EP 2375027 B1 EP2375027 B1 EP 2375027B1 EP 11000555 A EP11000555 A EP 11000555A EP 2375027 B1 EP2375027 B1 EP 2375027B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expansion tank
- flow
- diameter
- volume
- calming
- 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.)
- Not-in-force
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/028—Deaeration devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/029—Expansion reservoirs
Definitions
- the invention relates to a surge tank for cooling circuits.
- the cooling circuit is subject to large temperature fluctuations, so that it comes to volume changes of the coolant.
- expansion tank usually arranged parallel to the radiator of the engine.
- a vent valve attached on the warm side of the radiator. From this leads a vent line mostly up in the volume of the expansion tank.
- water collects at the bottom, while the top is air.
- a filling line leads from the expansion tank to the cold side of the cooler.
- the coolant When heated in the cooling circuit, the coolant expands. About the filling line, the coolant can expand into the expansion tank. The air in the expansion tank is then compressed. In motor vehicle engines there is a pressure of 1200 up to 1500 hPa If the pressure exceeds a specified maximum, air is blown off via a safety valve (humid air). If the temperature drops, coolant flows from the expansion tank into the cooling circuit; the pressure in the expansion tank drops. If the pressure drops below a certain pressure, the safety valve opens and air can flow from outside into the expansion tank.
- a safety valve humidity air
- Object of the present invention is therefore to make a surge tank such that it allows safe separation of the air with lower heat loss and pressure fluctuations.
- the filling line has in the region of the connection to the expansion tank on a calming section with increased diameter and further immediately below the calming section on a calming volume with again increased diameter.
- the vent line opens below the expansion tank in the settling volume of the filling line. This ensures that coolant from the vent line in the calming volume is significantly delayed and the air bubbles from the coolant through the wide calming section can flow up into the expansion tank, as they are not entrained with the coolant at the low speed.
- a maximum flow velocity of the coolant in the settling volume of less than 0.01 m / s is desired. A continuous flow of the expansion tank with coolant thus does not take place.
- the coolant in the expansion tank thus serves only to compensate for the temperature-dependent volume compensation and is not heated to the cooling circuit temperature, it is at a level well below the flow temperature, whereby the heat losses are massively reduced.
- the lower temperature level also reduces the pressure fluctuations in the expansion tank. On a mechanical air separator can be omitted.
- FIG. 1 shows a surge tank 1 for cooling circuits, at the bottom of a filling line 3 leads away.
- the filling line 3 begins with a calming section 5 and leads via a calming volume 4 in its further course, which has a significantly smaller diameter than the calming section 5.
- the calming volume 4 in turn has a significantly larger cross-section than the calming section 5.
- Vent line 2 opens into the sedative volume 4.
- such a surge tank has a volume of about 5 liters, and he should take a maximum of one and a half liters of coolant, so that the remaining volume contains air and can absorb pressure fluctuations.
- the vent line 2 usually has a diameter of 2.5 to 4 mm, while the settling volume 4 has a height and a diameter of about 30 mm.
- the calming section 5 is 40 to 70 mm long and has a diameter of 10 to 16 mm.
- the diameter of the calming section 5 should be approximately four times the diameter of the venting line 2.
- the vent line 2 should preferably enter centrally or even slightly above it into the settling volume 4.
- FIG. 2 shows an expansion tank 1 according to the invention in conjunction with a motor 6 of a combined heat and power plant.
- the engine 6 is hydraulically connected to a heat exchanger 7 via a supply and return line 9 of a circuit.
- a circulating pump 8 is arranged in the return line 9, a circulating pump 8 is arranged.
- the heat exchanger 7 is further connected to at least one heat consumer, not shown, usually a hot water tank and / or a radiator.
- the flow line 10 is connected to the vent line 2, the return line 9 to the filling line 3.
- a safety valve 11 is further arranged.
- the engine 6 is often connected to the heat consumer via hydraulic boxes.
- hydraulic boxes include the heat exchanger 7, the compensation 1, the circulation pump 8 and the corresponding piping.
- the circulation pump 8 results in a division of the two volume flows through the heat exchanger 7 and the settling volume 4 according to the pressure losses of the two flow paths.
- a volumetric flow over the settling volume 4 of about 10 l / h is desired.
- the air in the coolant flows via the calming section 5 into the expansion tank 1, while the cooling liquid, together with the cooling water flow which has been cooled in the heat exchanger 7, is sucked in by the circulation pump 8 and reaches the engine 6 via the return line 9. There, the coolant absorbs the waste heat of the engine 6 and flows at a temperature between 75 and 90 ° C from the engine 6 via the flow line 10, to then be divided again to the heat exchanger 7 and the vent line.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Claims (7)
- Vase d'expansion (1) pour un circuit de refroidissement équipé d'une conduite d'évacuation (2) et d'une conduite de remplissage (3), qui mène vers la partie inférieure du vase d'expansion (1), caractérisé en ce que la conduite de remplissage (3) est équipée d'une voie de réduction (5) avec un diamètre agrandi dans la zone de raccordement au vase d'expansion (1) et, en outre, en ce qu'un volume de réduction (4) avec un diamètre une nouvelle fois agrandi est disposé directement en-dessous de la voie de réduction (5), et en ce que la conduite d'évacuation (2) située en-dessous du vase d'expansion(1) dans le volume de réduction (4) se jette dans la conduite de remplissage (3).
- Vase d'expansion (1) pour un circuit de refroidissement selon la revendication 1, caractérisé en ce que le vase d'expansion (1) dispose d'un volume d'environ 5 litres.
- Vase d'expansion (1) pour un circuit de refroidissement selon la revendication 1 ou 2, caractérisé en ce que la conduite d'évacuation (2) a un diamètre de 2 à 5 mm et / ou en ce que le volume de réduction (4) a une hauteur et un diamètre de 20 à 40 mm, de préférence 30 mm.
- Vase d'expansion (1) pour un circuit de refroidissement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la conduite de réduction (5) a une longueur comprise entre 30 et 70 mm, de préférence 40 mm et un diamètre compris entre 10 et 16 mm.
- Vase d'expansion (1) pour un circuit de refroidissement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le diamètre de la voie de réduction (5) est 3 à 5 fois plus grand, de préférence 4 fois plus grand, que le diamètre de la conduite d'évacuation (2).
- Vase d'expansion (1) pour un circuit de refroidissement selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la conduite d'évacuation (2) s'insère au centre ou dans le volume de réduction (4).
- Vase d'expansion (1) pour un circuit de refroidissement selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le vase d'expansion (1) est intégré dans un boîtier hydraulique qui contient au moins encore un échangeur thermique (7), une pompe de recirculation (8), un tuyau correspondant ainsi que des raccords pour raccorder le dispositif d'utilisation de chaleur et un agrégat de centrale de chauffage à distance.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA133/2010A AT509435B1 (de) | 2010-02-02 | 2010-02-02 | Ausgleichsbehälter für kühlkreisläufe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2375027A2 EP2375027A2 (fr) | 2011-10-12 |
EP2375027A3 EP2375027A3 (fr) | 2013-01-09 |
EP2375027B1 true EP2375027B1 (fr) | 2013-12-25 |
Family
ID=44201333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11000555.0A Not-in-force EP2375027B1 (fr) | 2010-02-02 | 2011-01-25 | Récipient d'équilibrage pour circuits de refroidissement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2375027B1 (fr) |
AT (1) | AT509435B1 (fr) |
ES (1) | ES2446366T3 (fr) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952765A (en) * | 1974-12-04 | 1976-04-27 | Shinichi Kimura | Device for separating air bubbles of fluids in piping, and silencing water flow |
DE3621837A1 (de) * | 1986-06-28 | 1988-01-07 | Man Nutzfahrzeuge Gmbh | Blasenabscheider fuer wassergekuehlte motoren |
FR2640315B1 (fr) * | 1988-12-14 | 1991-02-08 | Peugeot | Dispositif de refroidissement a combustion interne |
FR2684722A1 (fr) * | 1991-12-06 | 1993-06-11 | Valeo Thermique Moteur Sa | Vase d'expansion pour circuit de refroidissement a changement d'etat. |
US5718281A (en) * | 1994-05-13 | 1998-02-17 | Contech Division, Spx Corporation | Cooler reservoir/filter holder |
JP2002276367A (ja) * | 2001-03-19 | 2002-09-25 | Osaka Gas Co Ltd | 循環熱媒液の蒸発抑制装置 |
-
2010
- 2010-02-02 AT ATA133/2010A patent/AT509435B1/de not_active IP Right Cessation
-
2011
- 2011-01-25 ES ES11000555T patent/ES2446366T3/es active Active
- 2011-01-25 EP EP11000555.0A patent/EP2375027B1/fr not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
AT509435A1 (de) | 2011-08-15 |
EP2375027A2 (fr) | 2011-10-12 |
EP2375027A3 (fr) | 2013-01-09 |
AT509435B1 (de) | 2015-10-15 |
ES2446366T3 (es) | 2014-03-07 |
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