EP3066401B1 - Flüssigkeitsentnahmeanordnung - Google Patents

Flüssigkeitsentnahmeanordnung Download PDF

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Publication number
EP3066401B1
EP3066401B1 EP14772007.2A EP14772007A EP3066401B1 EP 3066401 B1 EP3066401 B1 EP 3066401B1 EP 14772007 A EP14772007 A EP 14772007A EP 3066401 B1 EP3066401 B1 EP 3066401B1
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EP
European Patent Office
Prior art keywords
sump
oil
refrigerant
vaporizer
mixture
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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.)
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Application number
EP14772007.2A
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English (en)
French (fr)
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EP3066401A1 (de
Inventor
Anthony S. MOLAVI
Michel Grabon
Charbel RAHHAL
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Carrier Corp
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Carrier Corp
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Publication of EP3066401A1 publication Critical patent/EP3066401A1/de
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Publication of EP3066401B1 publication Critical patent/EP3066401B1/de
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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
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/01—Heaters
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system

Definitions

  • Embodiments of the invention relate to a fluid collection assembly and to a chiller system.
  • vaporizers are used to separate refrigerant from a refrigerant/lubricant mixture, such as a refrigerant/oil mixture.
  • a vaporizer receives a refrigerant/oil mixture drained from an evaporator, and it is desired to remove the refrigerant from the mixture prior to returning the oil to a compressor to lubricate the compressor.
  • the mixture is run through a vaporizer, where it is exposed to heat to vaporize the refrigerant, separating the refrigerant from the oil, which remains in a liquid state.
  • the oil is drained to an oil sump where further separation of refrigerant from the oil occurs by another heating element, and the vaporized refrigerant is passed to the compressor via a suction line.
  • WO 2013/032611 A2 discloses a vaporizer with a vaporizer chamber and a sump below the vaporizer chamber.
  • a housing encloses the sump and the vaporizer chamber.
  • an electric heater is provided having one or more heating elements positioned to heat oil in the system
  • WO 2013/032611 A2 discloses a fluid collection assembly according to the preamble of claim 1.
  • WO 2007/068247 A1 shows a system for oil management where a common pressure shield contains all oil management functions for treatment of the mixture of oil and refrigerant leaving the compressor, and returning the oil to the compressor.
  • the pressure shield may comprise at least the following components related to oil management: an oil separator from which oil is flowing to an oil sump, an oil cooler connected to the oil sump, a mixing valve in which the oil from the oil cooler is mixed with oil from the oil sump for achieving an optimised oil temperature, an oil filter for filtering the mixed oil, the mixed oil being returned from the oil filter to the compressor, and where at least the mentioned components can operate at a pressure level substantially equivalent to the discharge pressure at the compressor.
  • Embodiments of the invention include a fluid collection assembly according to claim 1.
  • Additional embodiments include a chiller system according to claim 7
  • Vaporizers receive a mixture of liquid refrigerant and oil and separate the refrigerant from the oil by way of a vaporization process.
  • oil from the vaporizer is transmitted to a sump and to one or more other components for re-use or storage.
  • an oil separator is usually used for oil separation.
  • the resulting oil has a lower viscosity which makes transmission of the oil difficult, since a certain thickness of the oil is necessary for optimal transmission.
  • Embodiments of the invention include a sump having an angled base and a heater to increase the efficiency of the sump by improving the evaporation of refrigerant in a refrigerant/oil mixture to increase the viscosity of the oil in the sump.
  • FIG. 1 illustrates a chiller system 100 according to an embodiment of the invention.
  • the chiller system 100 includes a compressor 110, a cooler 120, also referred to as an evaporator 120, a condenser 130, a vaporizer 140 and a sump 150.
  • the cooler 120 provides a mixture of liquid refrigerant and another liquid to the vaporizer 140.
  • the non-refrigerant liquid may be a lubricant to lubricate mechanical components of the compressor 110.
  • the non-refrigerant liquid is oil. Accordingly, in the present specification, the non-refrigerant liquid will be referred to as oil, but embodiments of the invention encompass any other type of non-refrigerant liquid capable of performing the required lubricating functions.
  • the condenser 130 provides a hot gas to the vaporizer 140 to vaporize the liquid refrigerant in the refrigerant/oil mixture.
  • the vaporizer 140 includes tubing or piping that receives the hot gas from the condenser 130.
  • the hot gas is refrigerant, and after passing through the vaporizer 140, the now-cooled gas is output to the cooler 120 to exchange heat with the mixture of oil and liquid refrigerant in the cooler 120.
  • the piping in the vaporizer 140 is isolated from the refrigerant/oil mixture in the vaporizer 140, such that the hot gas does not mix with the refrigerant/oil mixture.
  • the vapor refrigerant of the refrigerant/gas mixture is transmitted to the compressor 110 via a suction line.
  • the oil of the refrigerant/oil mixture is collected by the sump 150 and flows to a reservoir, before being transmitted, via a pump (not shown), to the compressor 110 to lubricate mechanical components of the compressor 110.
  • the sump 150 includes a heating element configured to heat the oil in the sump 150 to effectively evaporate refrigerant from the oil and to keep the oil viscous, or to maintain a rich level of viscosity.
  • rich viscosity refers to a level of viscosity necessary in oil provided to a compressor or other parts to be lubricated that is sufficient to effectively lubricate the compressor or other parts.
  • the oil requires a certain minimum thickness or viscosity to be an effective lubricant.
  • FIG. 2A illustrates a vaporizer and sump assembly 200 according to an embodiment of the invention.
  • the assembly 200 includes a sump 210 and a vaporizer 220.
  • the vaporizer 220 extends through the sump 210 which conserves heat generated by heating elements in one or both of the sump 210 and the vaporizer 220.
  • the sump includes a heating element 213 including a base 213a and extended portion 213b.
  • the extended portion 213b extends along a length of the sump 210 to heat oil in the sump 210.
  • the assembly 200 also includes a reservoir 230 located at an end of the sump 210 to store oil (particularly rich-viscosity oil) collected by the sump 210.
  • the oil may then be selectively transmitted to other devices (such as via a filter, shut-off valve, or pressure regulating valve) or systems via an outlet 231.
  • the sump 210 includes an opening 218 configured to transmit the oil from the sump 210 into the reservoir 230.
  • FIG. 2B illustrates a cross-section view of the vaporizer and sump assembly 200.
  • the sump 210 includes a housing 211 defining a cavity 212.
  • the sump 210 further includes two diagonal sides 216 and 217 that join at a bottom of the sump 210 to form a trough in which the oil collected by the sump 210 flows or drains.
  • a heating element 213 is located in the trough.
  • the heating element 213 is configured to be immersed in the oil collected by the sump 210.
  • the sides 216 and 217 are diagonal lines with respect to a horizontal axis X. As a result, oil collected by the sump 210 collects at the junction of the sides 216 and 217, which is the low-point of the sump 210.
  • a volume of oil required to immerse the heating element 213 is less than if a bottom side of the sump 210 was flat or horizontal.
  • a volume of a fluid having a triangular cross-section that has a height of at least h1 is less than a volume of a fluid having a rectangular cross-section having the same width as the width of the triangle.
  • a smaller volume of oil is required to immerse the heating element 213 using a sump 210 having a triangular lower cross-section than a rectangular lower cross-section of the same height and width; accordingly, the sump 210 operates with a higher efficiency (the entire heating element 213 is immersed down to a lower liquid volume) and maintains a greater level of viscosity of the oil (or a richer viscosity) in the sump 210.
  • the vaporizer and sump assembly 200 includes the vaporizer 220 located within the sump 210.
  • the vaporizer 220 includes a housing 221 defining a cavity 222.
  • Heating piping 223, which may also be referred to as boiling piping, is located on a bottom side 225 of the vaporizer 220.
  • a heating element 224 is located on the bottom side 225 of the vaporizer 220 adjacent to the heating piping 223.
  • the heating piping 223 provides a flow path for a heated fluid.
  • the heated, or boiled, fluid is a gas.
  • the gas is refrigerant.
  • the heating element 224 is an electric heater (single or multi-stages).
  • the mixture of liquid refrigerant and oil is input to the cavity 222 to flow through the vaporizer 220.
  • a sufficient volume and flow of the mixture is provided to entirely immerse the heating element 224.
  • the heating piping 223 boils the mixture to vaporize the refrigerant, separating the refrigerant from the oil.
  • the heating element 224 also heats the mixture.
  • the heating element 224 is immersed in the mixture and, together with the heating piping 223, boils the mixture to vaporize the refrigerant.
  • the vaporized refrigerant is transmitted out from the vaporizer 220 via a first flow path 226 and the oil is transmitted out from the vaporizer 220 and into the sump 210 via a second flow path 227.
  • the flow path 226 and its drain port is oriented slightly above all tubing height to assure complete submersion of tube bundles 222 within mixture for maximum level of boiling.
  • the flow paths 226 and 227 may include piping, for example.
  • the oil flows or drains from the vaporizer 220 to the sump 210 and collects in the trough at the bottom of the sump 210.
  • the oil surrounds and immerses the heating element 213 (single or multi-stages), which heats the oil to further evaporate refrigerant and maintain a high, or rich, viscosity of the oil.
  • the heating element 213 single or multi-stages
  • the oil flows from the trough of the sump 210 into the reservoir 230 via the opening 218.
  • the sides 216 and 217 may form any angle ⁇ less than one hundred eighty (180) degrees.
  • the sides 216 and 217 may form an angle ⁇ in a range between around thirty (30) degrees and around one hundred fifty (150) degrees.
  • the sides 216 and 217 form an angle ⁇ in a range between around forty-five (45) degrees and around one hundred thirty-five (135) degrees.
  • the sides 216 and 217 form an angle of around ninety (90) degrees.
  • the sides 216 and 217 are substantially straight, meaning that the sides are generally straight while allowing for slight variations in shape due to manufacturing or design considerations. In some embodiments, the sides 216 and 217 may be curved. In one embodiment of the invention, the housing 211 of the sump 210 has a diamond shape, or the shape of a square rotated forty-five (45) degrees. In such an embodiment, the base of the trough is the nadir of the diamond.
  • the reservoir 230 is located at an end of the sump 210.
  • the opening 218 in the sump 210 permits the flow of oil from the sump 210 into the reservoir 230.
  • the opening 218 has a shape that corresponds to the shape of the sump 210.
  • the sump 210 has a lower portion having two diagonal sides 216 and 217, and the opening 218 also includes two diagonal sides 214 and 215.
  • the two diagonal sides 214 and 215 of the opening 218 are substantially parallel to the two diagonal sides 216 and 217, respectively, of the sump 210.
  • the two diagonal sides 214 and 215 of the opening 218 are flush with inner surfaces of the sump 210, such that a oil is permitted to flow or drain freely from the trough in the sump into the reservoir 230 without traversing any ridge or barrier formed by the diagonal sides 214 and 215 of the opening 218.
  • the height h2 defining the distance between the opening 218 and a bottom side 232 of the reservoir 230 is designed to provide a minimum level of oil in the reservoir 230.
  • the minimum level of oil may be a minimum amount of lubricant, such as oil, to permit the flow of oil to the compressor 110 of FIG. 1 , for example.
  • FIG. 3 illustrates a vaporizer and sump assembly 300 according to another embodiment of the invention in which the vaporizer 320 has diagonally-oriented sides 326 and 327 defining a trough.
  • Heating elements 323 including heating piping, an electrical heater, or any other heating elements, are located in the base of the trough and are configured to be submerged by the mixture of refrigerant and oil supplied to the vaporizer 320.
  • the reservoir 230 is also provided with a heating element.
  • embodiments of the invention have been illustrated with a diamond-shaped sump having ninety-degree angles at each corner, it is understood that embodiments of the invention encompass a sump having any shape that includes two sides forming a trough to permit the flow of oil in the trough.
  • the shape may be a diamond, an upside-down triangle, a parachute-type shape having a rounded top and substantially-straight sides, or any other shape that forms a trough at the bottom of the sump.
  • embodiments of the invention also encompass a vaporizer and sump assembly 400 having a vaporizer 420 that is separate from the sump 410.
  • the sump 410 includes a housing 411 defining a cavity 412.
  • the sump 410 includes two diagonal sides 416 and 417 forming a trough.
  • a heating element 413 is located in the trough to heat oil flowing through the sump 410.
  • the vaporizer 420 includes a housing 421 defining a cavity 422, and heating piping 423 and a heating element 424 on a bottom side of the vaporizer 420.
  • a mixture of liquid refrigerant and oil is introduced into the vaporizer 420 and the refrigerant is vaporized to separate the refrigerant from the oil.
  • the oil is transmitted from the vaporizer 420 to the sump 410 via the flow path 427, which may be a pipe, for example.
  • FIG. 5 illustrates a sump 510 according to another embodiment of the invention.
  • the sump 510 includes a housing 511 defining a cavity 512.
  • the sump 510 includes two diagonal sides 516 and 517 forming a trough.
  • a heating element 513 is located in the trough to heat and boil an oil/refrigerant mixture flowing through the sump 510, vaporizing the refrigerant of the oil/refrigerant mixture.
  • the sump 510 acts as both a sump and a vaporizer.
  • the heating element 513 includes one or more pipes 513a, 513b, and 513c.
  • the pipes 513a, 513b, and 513c may be heated by a heating fluid running through the pipes 513a, 513b, and 513c, such as gas from a compressor outlet, liquid from a condenser outlet, or any other heated fluid.
  • the pipes 513a, 513b, and 513c may then heat and boil the oil/refrigerant mixture within the sump 510.
  • sump 510 of FIG. 5 is illustrated with a diamond shape, embodiments of the invention encompass a sump 510 having any shape, such as cylindrical, semi-cylindrical, triangular, or any other shape.
  • a sump is arranged or provided with a shape to form a trough in the base of the sump to collect oil.
  • the trough may be formed by two diagonal sides of the sump.
  • a heating element such as an electric heater, is formed in the trough to heat oil collected by the sump.
  • the vaporizer is located inside the sump.
  • the vaporizer includes heating piping and another heating element, such as an electric heater, to heat a mixture of refrigerant and the oil.
  • the oil from the sump is provided to a reservoir, and a shape of an opening from the sump to the reservoir corresponds to a shape of the sump.
  • the opening may include two diagonal sides that are either parallel to or flush with the two diagonal sides of the sump.
  • Embodiments of the invention provide for an efficient vaporization process and transmittal of oil through a sump to a reservoir by including heating elements, such as electrical heaters, in one or both of a sump and a vaporizer. Positioning the heating element in the trough of the sump having the two diagonal sides that form the trough results in a more efficient heating of a potentially smaller volume of liquid. In addition, forming an opening from the sump to the reservoir in the shape of the trough of the sump results in a more efficient flow or drain of liquid from the sump to the reservoir. In addition, providing an electrical heater in the vaporizer to be immersed in a mixture of refrigerant and liquid results in an efficient heating and boiling of the mixture and an efficient vaporization process.
  • heating elements such as electrical heaters
  • a drain line passage from the vaporizer to the sump is equipped with a solenoid valve, needle valve, a riser drain line loop, or a drain port located above a height of the heating or boiling tubes.
  • the vaporizer assembly includes the riser drain line loop or the drain port located above the height of the heating or boiling tubes, the majority of the tubes' surfaces are submerged in the oil/refrigerant mixture in the vaporizer.
  • the sump 510 of FIG. 5 which may be referred to as a rectifier, is used when a quantity of oil to separate from the cooler is low.
  • a system may include a high-pressure oil separator, and the sump 510 may act as an additional low-pressure oil separator.
  • FIG. 6 illustrates an evaporator assembly 600 according to an embodiment of the invention.
  • the assembly 600 includes the evaporator 601 and an oil rectifier 602.
  • the evaporator 601 includes an outlet 603 located on the evaporator 601 at a location where a concentration of oil in the oil/refrigerant mix 611 is expected to be high during operation of the assembly 600.
  • the region 611a represented by dots, has a greater concentration of oil than the region 611b.
  • the location of the region 611a may be pre-calculated or estimated based on expected or designed operating conditions of the evaporator 601, and the outlet 603 may be located on the evaporator 601 at a location corresponding to the region 611a.
  • the oil/liquid mixture 611 exchanges heat with water or another coolant (not shown in FIG. 6 for purposes of clarity) via a heat exchanger, such as a closed-loop heat exchanger that does not mix the water with the oil/gas mixture 611.
  • a heat exchanger such as a closed-loop heat exchanger that does not mix the water with the oil/gas mixture 611.
  • the oil/ liquid mixture flows out of the outlet 603, through a conduit 604, a solenoid valve 605, and a check valve 606 to the oil rectifier 602.
  • the solenoid valve 605 is controlled, such as by a controller including a processor (not shown) to control the flow of the oil/refrigerant mix into the oil rectifier 602.
  • the check valve 606 prevents a back-flow of fluid into the evaporator 601.
  • the oil rectifier 602 includes a heating element 607 to heat the oil/refrigerant mix.
  • the heating element 607 is a heat exchanger that receives heated liquid or gas refrigerant from the condenser outlet or the compressor outlet via the conduit 608, subjects the oil/refrigerant mix to heat.
  • the oil rectifier 602 is located below the outlet 603 to allow gravity to drain the oil/refrigerant mix from the evaporator 601 to the oil rectifier 602.
  • sensors 613 are used to detect the state of the oil/refrigerant mix in the oil rectifier 602.
  • the sensors 613 may include one or both of pressure and temperature sensors.
  • the evaporator 601 may also include one or more temperature and pressure sensors 614.
  • a temperature inside the oil rectifier 602 is compared with a temperature in the evaporator 601. The difference between the two temperatures may then be compared to a predetermined value. The resulting difference may then be used to control whether the oil rectifier 602 is used by turning on the solenoid valve 605, or whether the oil rectifier 602 is turned off by closing the solenoid valve 605.
  • the predetermined value may be a fixed temperature or a function of the heating source temperature (for example, the heated liquid refrigerant introduced via the conduit 608) and the evaporator saturation temperature.
  • heat transfer in the evaporator 601 may be maintained within predetermined thresholds, oil separation efficiency may be maintained, and oil return from the evaporator 601 to the compressor may be maintained even in low load operating conditions in which a low refrigerant flow rate exists.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Compressor (AREA)
  • Lubricants (AREA)

Claims (10)

  1. Fluidsammelanordnung (200), umfassend:
    einen Verdampfer (220), der dazu konfiguriert ist, ein flüssiges Kältemittel in einem Gemisch aus flüssigem Kältemittel und Öl zu verdampfen, um das verdampfte Kältemittel von dem Öl zu trennen; und
    einen Sumpf (210), der dazu konfiguriert ist, das Öl in einer Wanne zu sammeln, die durch eine Verbindung von zwei diagonalen Seiten (216, 217) des Sumpfes (210) gebildet wird, wobei der Sumpf (210) ein Heizelement (213) in der Wanne beinhaltet,
    wobei der Sumpf (210) ein Gehäuse (211) beinhaltet, das einen Hohlraum (212) definiert;
    wobei das Heizelement (213) dazu konfiguriert ist, in das durch den Sumpf (210) gesammelte Öl getaucht zu werden;
    dadurch gekennzeichnet, dass
    der Verdampfer (220) durch den Sumpf (210) hindurchgeht, sodass ein Gehäuse (221) des Verdampfers (220) von einem Gehäuse (211) des Sumpfes (210) umgeben ist;
    die beiden die Wanne bildenden diagonalen Seiten (216, 217) in Bezug auf eine horizontale Achse (X) im Wesentlichen gerade sind und an einem Boden des Sumpfes (210) zusammenlaufen, sodass die Wanne gebildet wird, in die das von dem Sumpf (210) gesammelte Öl fließt oder abläuft, und die den Tiefpunkt des Sumpfes (210) bildet, und
    der Sumpf (210) eine im Wesentlichen rautenförmige Gestalt aufweist und sich ein Boden der Wanne im tiefsten Punkt der Raute befindet.
  2. Fluidsammelanordnung (200) nach Anspruch 1, wobei das Gehäuse (221) des Verdampfers (220) eine Unterseite (225), eine an der Unterseite (225) angeordnete Heizleitung (223) und ein an der Unterseite (225) benachbart zu der Heizleitung (223) angeordnetes elektrisches Heizelement (224) beinhaltet.
  3. Fluidsammelanordnung (200) nach Anspruch 1, wobei der Verdampfer (320) eine Wanne beinhaltet, die durch eine Verbindung von zwei diagonalen Seiten (326, 327) des Verdampfers (320) und einem Verdampferheizelement (323) in der Wanne gebildet ist.
  4. Fluidsammelanordnung (200) nach Anspruch 1, wobei das Heizelement (213) eine Basis (213a) und einen verlängerten Abschnitt (213b) aufweist, wobei sich der verlängerte Abschnitt (213b) entlang einer Länge des Sumpfes (210) erstreckt, um Öl in dem Sumpf (210) zu erwärmen.
  5. Fluidsammelanordnung (200) nach Anspruch 1, ferner umfassend:
    ein Reservoir (230), das an einem Ende des Sumpfes (210) angeordnet ist, um das von dem Sumpf (210) gesammelte Öl zu speichern,
    wobei eine Öffnung (218) in dem Sumpf (210), um einen Durchgang des Öls von dem Sumpf (210) zu dem Reservoir (230) zu ermöglichen, eine Form aufweist, die der Form des Sumpfes (210) entspricht.
  6. Fluidsammelanordnung nach Anspruch 5, wobei das Reservoir (230) ein Heizelement beinhaltet.
  7. Kühlsystem (100), umfassend:
    einen ersten Speicherbehälter, der dazu konfiguriert ist, ein Gemisch aus Kältemittel und Öl zu speichern;
    eine Fluidsammelanordnung nach einem der Ansprüche 1 bis 6; und
    einen Verdichter (110), der mit dem Verdampfer (140) und dem Sumpf (210) verbunden ist, um das Kältemittel von dem Verdampfer (140) und das Öl von dem Sumpf (210) aufzunehmen.
  8. Kühlsystem (100) nach Anspruch 7, ferner umfassend:
    einen Kondensator (130), der dazu konfiguriert ist, ein heißes Gas zu erzeugen, wobei der Kondensator (130) mit der beheizten Rohrleitung (223) verbunden ist, um das heiße Gas zum Verdampfen des Kältemittels durch Heizrohrleitungen (223) zu leiten.
  9. Kühlsystem (100) nach Anspruch 7, wobei der erste Speicherbehälter ein Verdampfer (120) ist, der dazu konfiguriert ist, ein Gemisch aus dem Kältemittel und dem Öl zu kühlen, und das Kühlsystem ferner umfasst:
    einen Flüssigkeitsgleichrichter (602), der dazu konfiguriert ist, das Gemisch aus Kältemittel und dem Öl von einem Anschluss, der einer vorbestimmten Tiefe in dem Verdampfer (120) entspricht, aufzunehmen, das Gemisch zu erwärmen und verdampftes Kältemittel zu dem Verdampfer (120) zurückzuführen, wobei der Flüssigkeitsgleichrichter (602) eine Auslassöffnung zum Ausgeben des von dem Kältemittel getrennten Öls an einen Verdichter (110) beinhaltet.
  10. Kühlsystem (100) nach Anspruch 7, wobei der erste Speicherbehälter ein Verdampfer (120) ist, der dazu konfiguriert ist, ein Gemisch aus dem Kältemittel und dem Öl zu kühlen, und das Kühlsystem ferner umfasst:
    einen Flüssigkeitsgleichrichter (602), der dazu konfiguriert ist, das Gemisch aus Kältemittel und dem Öl von einem Anschluss, der einer vorbestimmten Tiefe in dem Verdampfer (120) entspricht, aufzunehmen, das Gemisch zu erwärmen und verdampftes Kältemittel zu dem Verdampfer (120) zurückzuführen; und wobei das Kühlsystem ferner mindestens einen Sensor umfasst, um einen ersten Kennwert des Gemischs in dem Flüssigkeitsgleichrichter (602) zu erfassen, den ersten Kennwert mit einem zweiten Kennwert des Gemischs in dem Verdampfer (120) zu vergleichen, um eine Differenz zwischen dem ersten und zweiten Kennwert mit einem vorbestimmten Wert zu vergleichen, und um einen Strom des Gemischs von dem Verdampfer (120) zu dem Flüssigkeitsgleichrichter (602) basierend auf dem Vergleich der Differenz zwischen dem ersten und zweiten Kennwert zu steuern.
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8463441B2 (en) 2002-12-09 2013-06-11 Hudson Technologies, Inc. Method and apparatus for optimizing refrigeration systems
WO2017066575A1 (en) * 2015-10-15 2017-04-20 Carrier Corporation Multi-stage oil batch boiling system
US10935292B2 (en) 2018-06-14 2021-03-02 Trane International Inc. Lubricant quality management for a compressor
CN116465123A (zh) * 2022-01-19 2023-07-21 开利公司 用于制冷系统的多层级油汽化器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007068247A1 (en) * 2005-12-12 2007-06-21 Johnson Controls Denmark Aps Oil management system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216002A (en) * 1979-01-11 1980-08-05 Rosenblad Corporation Selective condensation process and condenser apparatus
US6550258B1 (en) * 2000-11-22 2003-04-22 Carrier Corporation Pre-start bearing lubrication for refrigeration system compressor
ES2283483T3 (es) * 2002-05-31 2007-11-01 North European Patents And Investments H.S.A., Societe Anonyme Aparato para recoger y purificar refrigerante en sistemas de aire acondicionado.
US6672102B1 (en) * 2002-11-27 2004-01-06 Carrier Corporation Oil recovery and lubrication system for screw compressor refrigeration machine
CN100538216C (zh) * 2005-02-15 2009-09-09 开利公司 具有受控润滑剂回收的压缩机系统
EP2119993A1 (de) * 2008-05-14 2009-11-18 ABB Research Ltd. Zweiphasiger Kühlkreislauf
CN201484017U (zh) * 2009-07-22 2010-05-26 刘晨光 新式墨水瓶
CN103827604B (zh) * 2011-08-26 2016-10-05 开利公司 制冷剂蒸馏器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007068247A1 (en) * 2005-12-12 2007-06-21 Johnson Controls Denmark Aps Oil management system

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