EP0260336B1 - Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile - Google Patents

Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile Download PDF

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Publication number
EP0260336B1
EP0260336B1 EP19860112791 EP86112791A EP0260336B1 EP 0260336 B1 EP0260336 B1 EP 0260336B1 EP 19860112791 EP19860112791 EP 19860112791 EP 86112791 A EP86112791 A EP 86112791A EP 0260336 B1 EP0260336 B1 EP 0260336B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nipple
container
liquid separator
oil
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
Application number
EP19860112791
Other languages
German (de)
English (en)
Other versions
EP0260336A1 (fr
Inventor
Erwin Glorer
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.)
Teko Gesellschaft fuer Kaeltetechnik mbH
Original Assignee
Teko Gesellschaft fuer Kaeltetechnik mbH
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.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8195421&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0260336(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Teko Gesellschaft fuer Kaeltetechnik mbH filed Critical Teko Gesellschaft fuer Kaeltetechnik mbH
Priority to DE19868660054 priority Critical patent/DE8660054U1/de
Priority to DE8686112791T priority patent/DE3673422D1/de
Priority to EP19860112791 priority patent/EP0260336B1/fr
Publication of EP0260336A1 publication Critical patent/EP0260336A1/fr
Application granted granted Critical
Publication of EP0260336B1 publication Critical patent/EP0260336B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators

Definitions

  • the invention relates to a liquid separator for a refrigeration machine set, with a container provided with visual inspection, an inlet connection on the container for connecting one or more evaporators, a suction connection arranged on the top of the container for connecting the container to one or more compressors, a nozzle arranged in the suction connection and a calibrated riser pipe that extends from the bottom of the container into the nozzle.
  • the power regulation of the compression is only possible by changing the frequency or pole switching, since three-phase or alternating current operation is the rule.
  • thermodynamic basis is based on the Carnot process
  • HFC common refrigerants
  • CHF 2 CI diofluoromonochloromethane
  • R 22 difluorodichloromethane
  • azeotopic mixtures such as CHCIF 2 / C 2 CI 2 F 4 to be found particularly often.
  • the R 12 is often used instead of ammonia, especially where leaks can cause difficulties, e.g. in air conditioning systems in mines, in household refrigerators and commercial systems.
  • versions according to 3) and 4) are provided with: a separate gas compensation tube in each case.
  • the partially provided arrangement of sight glasses allows only a basically static but not a dynamic control, since in the end one does not necessarily have to recognize whether the oil is actually flowing even when the oil level remains the same.
  • This document relates to a liquid separator, which is characterized in that a suction tube opens into the outlet connection of different size and position designed or acting as a nozzle in the direction of the exiting suction stream, the position in the flow cross section being arbitrary and a central arrangement or contacting the channel wall represent two possible designs, with the purpose of a continuous suction of separated liquid or liquid mixtures via the suction tube into the outlet nozzle as a finely divided droplet by the operational suction gas flow.
  • FIG. 4 in conjunction with FIG. 1.
  • the liquid or mixed liquid opens into the delimited steam suction area of the nozzle, which re-enters the cooling circuit via the compressors and a condenser.
  • the suction connection has a nipple provided on the container and an angle adapter releasably attached to it, that the riser is centered over guide vanes in the nipple and the nozzle is arranged in the branch of the angle adapter adjoining the nipple so that it can be replaced in operation, the oil sucked in through the riser forms a boundary layer on the walls of the angle adapter which migrates in the direction of flow.
  • the design mentioned has the advantage that the nipple installed on the container between the riser pipe and the guide vanes attached to it can be non-positively exchangeably fixed, and that the angle adapter can also be exchanged in the branch adjoining the nipple is arranged.
  • This arrangement has the effect that, during operation, the oil sucked in through the riser pipe forms a boundary layer that migrates in the direction of flow along the inner periphery of the angle adapter.
  • the nipple is provided with an external thread
  • the branch of the angle adapter receiving the separating nozzle coaxially with the nipple being connected to the latter by a union nut, and that the internal formation of the branch with a stop pointing in the flow direction for the installation of the separating nozzle is provided.
  • the riser tube seen in the direction of the current, with a different dimensionable, interchangeable head piece is provided for adjusting the annular gap between the separating nozzle and the riser pipe.
  • the exchangeable separating nozzle be a double-cone nozzle consisting essentially of a nozzle and a diffuser, which, on the input side, has a wide, narrow cone section with its internal shape, i.e. forms the actual nozzle, to which a longer truncated cone section, which widens in the direction of flow, extends over a connecting cylindrical section, i.e. the actual diffuser, connects.
  • the separating nozzle completely separates and merges the remaining parts of the refrigerant that has not yet fully evaporated when the refrigerant flow is completely converted into vapor form.
  • the arrangement of the separating nozzle in the angle adapter allows it to be replaced in the simplest way in the event of changed or changing operating conditions.
  • the separating nozzle As a double-cone frustum nozzle, it should also be noted that this has proven to be particularly advantageous in the course of the development since, in addition to the complete separation performance after the media has passed through the cylindrical section, the pressure build-up takes place more slowly than the initial pressure reduction.
  • the entry angle of the short truncated cone section i.e. the nozzle
  • the exit angle of the long truncated cone section i.e. of the diffuser.
  • the compressors are arranged in a tier below the return collector.
  • This extremely space-saving design also allows a clear structure of the chiller set and an effective arrangement of the condenser and the condensing fans.
  • the large-sized return manifold provides a sight glass attached in its lower area with an embedded floating pearl, so that the optical observation of returning oil and undevaporated refrigerant can also be checked in a simple manner.
  • FIG. 1 shows that the refrigerant from the refrigerant tank 21 via the lines 22 u. Throttle valves 22.1, 22.2 and 22.3 are passed through the evaporators 23.1, 23.2 and 23.3 including the entrained lubricating oil components, and the flow thus composed is fed via the connections 4 to the return collector 2, which contains the multi-part separator 25.
  • a substantial part of the liquid-containing refrigerant fraction b) is mixed and swirled to such an extent by the flow passed through the inlet connections 4 during suction operation that the intermediate layer b) is more and more converted into vapor form during operation of the refrigeration machine set 1 and from the already evaporated refrigerant is recorded.
  • oil suction connections 5 are provided, the oil suction 6 assigned to them and the gas removed from the steam suction area 7 jointly feeding the angle adapter 10, in which a separating nozzle 11 separates the oil so that it acts as a migrating boundary layer adheres to the inner periphery of the angle adapter 13 and the suction line 5.1 leading to a compressor 8, while the refrigerant vapor flow is guided in the center of this line system.
  • This consists of a tier 9 frame, which - cf. the left figure - is assigned a condenser 20 that extends across the entire height of the frame, with the return collector 2, the compressor 8.1, the compressor 8.2, the compressor 8.3 and the compressor 8.4, as well as - over a partial height - the collecting container in the individual floors 21 are arranged.
  • the condenser fans 14.2 to 14.4 are assigned to the condenser 20 and the condenser fan 14.1 to both the condenser and the return collector 2, the tier 9 additionally holding the collecting container 21.
  • the direction of the flow of cooling air is indicated by the hollow arrows.
  • each compressor 8 an oil trap, not shown, is provided for separating the lubricating oil which, starting from the oil trap, is led to the crankcase.
  • FIG. 3 A significant advantage of the system can also be seen from FIG. 3, namely the possibility of an extremely compact, space-saving design.
  • FIG. 4 shows the design of the apparatus for separating the media to be removed from the return collector, the parts already mentioned being repeated for the sake of a better overview, provided they are shown in this compilation.
  • the oil connection is followed by the inside and outside differently calibrated riser pipe 6.1, the riser pipe being non-positively fixed in a sleeve-like nipple 10.1 by connected, equally spaced guide vanes arranged with it.
  • the nipple 10.1 emerges from the wall of the return collector 2 and is welded to it and provided with an external thread that the connection of the two parts of the angle adapter, i.e. 10 and 10.1, via a separable means, i.e. via a union nut 10.3.
  • the level of the exit 6.3 from the riser 6.1 is determined by the selected projection of the riser 6.1 over the guide vanes 6.2.
  • Another position securing which is also to be rated as a vibration damper, can be seen in the fact that a support ring 6.4 is provided in the entry region of the riser pipe 6.1, between which and the inner wall 2.1 of the separating container 2 a compression spring 6.5 is arranged.
  • the separating nozzle 11 is introduced, the collar of which is directed against the stop 10.4 formed in the branch 10.2.
  • the separating nozzle 11 it is noted that in the case of this example it is a double-cone frustum nozzle. In its internal shape, this provides a wide truncated cone section 11.1 narrowing over a short length, which is followed by a truncated cone section 11.3 which widens in the direction of flow via a connecting, short cylindrical section 11.2.
  • the entry angle of the short truncated cone section 11.1 is larger than the exit angle of the long truncated cone section 11.3, so that, with such a design, the pressure increase and thus the reduction in speed take place somewhat more slowly.
  • angles and lengths must be coordinated on a case-by-case basis in order to achieve a complete separation process of the oil from the vaporous coolant.
  • the suction line 5.1 leading to the respective compressor 8 goes at a right angle from the angle adapter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Claims (5)

1. Séparateur de liquide pour une série de machines frigorifiques, comprenant un réservoir (2) muni d'un contrôle visuel, un raccord d'entrée (4) sur le réservoir pour le raccordement d'un ou de plusieurs évaporateurs, un raccord d'aspiration (5) disposé sur la face supérieure du réservoir pour relier le réservoir à un ou plusieurs compresseurs, une buse (11) disposée dans le raccord d'aspiration (5) et un tube montant calibré (6.1) qui s'étend depuis la zone inférieure du réservoir (2) jusque dans la buse, caractérisé par le fait que le raccord d'aspiration (5) comporte un embout (10.1) prévu sur le réservoir et un adaptateur coudé (10) fixé sur lui de façon amovible, et par le fait que le tube montant (6.1) est centré dans l'embout (10.1 ) par des ailettes de guidage (6.2) et que la buse (11) est disposée de manière interchangeable dans la branche de l'adaptateur coudé (10) qui se raccorde à l'embout (10.1), de sorte que, lors du fonctionnement, l'huile aspirée par le tube montant constitue sur les parois de l'adaptateur coudé une couche limite qui se déplace dans la direction de l'écoulement.
2. Séparateur de liquides selon la revendication 1, caractérisé par le fait que l'embout (10.1) est muni d'un filetage extérieur (10.4), cependant que la branche (10.2) de l'adaptateur coudé (10) qui reçoit la buse de séparation (11) avec le même axe que l'embout est: reliée à celui-ci par un écrou d'accouplement (10.4), et par le fait que l'intérieur de la branche (10.2) est muni d'une butée (10.5) tournée vers la direction de l'écoulement et destinée à l'appui de la buse de séparation (11 ).
3. Séparateur de liquides selon la revendication 1, caractérisé par le fait que le tube montant (6.1), vu dans la direction de l'écoulement, est muni d'une tête interchangeable (13) pouvant présenter des dimensions variables pour le réglage de l'intervalle annulaire (13) entre la buse de séparation (11) et le tube montant (6.1).
4. Séparateur de liquides selon la revendication 1, caractérisé par le fait que la buse de séparation interchangeable (11) est une buse en double tronc de cône qui est composée pour l'essentiel d'une buse et d'un diffuseur et qui, par sa conformation intérieure, constitue du côté de l'entrée une large portion en tronc de cône qui se rétrécit sur une courte longueur, c'est-à-dire la buse proprement dite (11.1 à laquelle se raccorde, par l'intermédiaire d'une portion cylindrique de liaison (11.2), une portion en tronc de cône plus longue qui s'élargit dans la direction de l'écoulement, c'est-à-dire le diffuseur proprement dit (11.3).
5. Séparateur de liquides selon la revendication 4, caractérisé par le fait que l'angle d'entrée (11.4) de la portion courte en tronc de cône, c'est-à-dire de la buse (11.1), est supérieur à l'angle de sortie (11.5) de la portion longue en tronc de cône, c'est-à-dire du diffuseur (11.3).
EP19860112791 1986-09-16 1986-09-16 Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile Expired - Lifetime EP0260336B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19868660054 DE8660054U1 (de) 1986-09-16 1986-09-16 Flüssigkeitsabscheider für einen luft- oder auch wassergekühlten Kältemaschinensatz zur permanenten Ölrückführung
DE8686112791T DE3673422D1 (de) 1986-09-16 1986-09-16 Fluessigkeitsabscheider fuer einen luft- oder auch wassergekuehlten kaeltemaschinensatz zur permanenten oelrueckfuehrung.
EP19860112791 EP0260336B1 (fr) 1986-09-16 1986-09-16 Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860112791 EP0260336B1 (fr) 1986-09-16 1986-09-16 Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile

Publications (2)

Publication Number Publication Date
EP0260336A1 EP0260336A1 (fr) 1988-03-23
EP0260336B1 true EP0260336B1 (fr) 1990-08-08

Family

ID=8195421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860112791 Expired - Lifetime EP0260336B1 (fr) 1986-09-16 1986-09-16 Séparateur de liquide pour une série de machines frigorifiques refroidies par de l'air ou de l'eau à renvoi permanent d'huile

Country Status (2)

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EP (1) EP0260336B1 (fr)
DE (1) DE3673422D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9400730D0 (en) * 1994-01-15 1994-03-16 Hussmann Europ Ltd Refrigeration apparatus
FR2718833B1 (fr) * 1994-04-19 1997-04-11 Daewoo Electronics Co Ltd Accumulateur destiné à être utilisé dans un réfrigérateur.
ATE281772T1 (de) * 1999-11-26 2004-11-15 Ohg Molina & Bianchi Spa Maschine zum überholen eines schuhoberleders über einen leisten
EP1705437A1 (fr) * 2005-03-23 2006-09-27 Luk Fahrzeug-Hydraulik GmbH & Co. KG Procédé de lubrification pour le compresseur d'un climatiseur
CN110758755B (zh) * 2019-10-12 2023-05-23 中航通飞华南飞机工业有限公司 一种水陆两栖飞机液压地面接头

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785164A (en) * 1972-05-17 1974-01-15 Virginia Chemicals Inc Precharged receiver drier for automobile air conditioning systems
DE2540032A1 (de) * 1975-09-09 1977-03-17 Hansa Metallwerke Ag Fluessigkeitssammler fuer kaelteanlagen
DE2602582C2 (de) * 1976-01-21 1983-03-31 Erich Schultze KG, 1000 Berlin Flüssigkeitsabscheider für Kälteanlagen
DE3119440A1 (de) * 1981-05-15 1982-12-09 Erich Schultze KG, 1000 Berlin "anlagen-waermeaustauscher fuer kaelteanlagen"
DE3219023A1 (de) * 1982-05-19 1983-11-24 Linde Ag, 6200 Wiesbaden Anlage, in der ein kaeltemittel im kreislauf gefuehrt wird
FR2564957B3 (fr) * 1984-05-23 1986-08-22 Electrolux Cr Sa Centrale de froid avec nouveau dispositif de controle du niveau d'huile des compresseurs
DE3434044A1 (de) * 1984-09-17 1986-03-27 TYLER Refrigeration GmbH, 6250 Limburg Saugsammelrohr fuer kaelteanlagen und waermepumpen
SE8404641L (sv) * 1984-09-17 1986-03-10 Olson Hans E E Anordning for att aterfora olja till en kylkompressor

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Publication number Publication date
EP0260336A1 (fr) 1988-03-23
DE3673422D1 (de) 1990-09-13

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