EP3153703A1 - Einlassventilbetätigungssystem, startverfahren für verdichter und dessen verwendung - Google Patents

Einlassventilbetätigungssystem, startverfahren für verdichter und dessen verwendung Download PDF

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Publication number
EP3153703A1
EP3153703A1 EP16191483.3A EP16191483A EP3153703A1 EP 3153703 A1 EP3153703 A1 EP 3153703A1 EP 16191483 A EP16191483 A EP 16191483A EP 3153703 A1 EP3153703 A1 EP 3153703A1
Authority
EP
European Patent Office
Prior art keywords
actuating
intake valve
controlled
mean
piston
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.)
Withdrawn
Application number
EP16191483.3A
Other languages
English (en)
French (fr)
Inventor
Dietmar Erich Bernhard Lilie
Sérgio Koerich Lohn
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.)
Whirlpool SA
Original Assignee
Whirlpool SA
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
Application filed by Whirlpool SA filed Critical Whirlpool SA
Publication of EP3153703A1 publication Critical patent/EP3153703A1/de
Withdrawn legal-status Critical Current

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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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
    • 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
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/08—Actuation of distribution members
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/108—Valves characterised by the material
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/108—Valves characterised by the material
    • F04B53/1082—Valves characterised by the material magnetic
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1085—Valves; Arrangement of valves having means for limiting the opening height

Definitions

  • the present invention describes an intake valve actuating system and a method for starting compressors.
  • the present invention may be used in reciprocating machines such as compressors.
  • the present invention lies in the field of Mechanical Engineering, specifically the flow machines area.
  • Reciprocating machines are mechanical devices widely used today because they are versatile and have wide applicability in various sectors of industry.
  • reciprocating movements are those promoted from a set of mechanisms, commonly known as connecting rod and crank, which transforms the rotation of a shaft into reciprocating motion (to-and-from) which is intended to reciprocating displace any device.
  • Reciprocating machines enjoy the reciprocating element in a pressurizer, such as a piston to pressurize fluids within a chamber. It is further provided a set of valves for the fluid to be pressurized is directed correctly when leaving the compression chamber. Due to the reciprocating movement of the pressurizer element and the performance of directional valves, is knowledge of the skilled in the art that reciprocating machines need a large initial torque to the starting of the both the inertia of the components and, especially, because the pressurizer element already starts the working cycle by compressing a portion of the fluid to be pressurized.
  • the US20070272890 discloses a solenoid device used to work in reciprocating compressor intake valves in order to regulate the internal pressure of the pressurizing chamber during periods of time when you want to control said internal pressure in the chamber of said reciprocating compressor.
  • This document discloses several means to be made available to the solenoids used, including a system for compensating the differential pressure. This document, however, does not reveal an effective way to solve the piston contact problem in the intake valve, without the solenoid which acts on said intake valve is damaged.
  • the present invention solves the constant problems in the prior art, from a system and intake valve actuation (13) of reciprocating machines. More specifically, the present invention discloses a system capable of keeping the intake valve system (13) in a pre-set condition for the time of starting a compressor to the piston and, after stabilization of rotation, according to pre-defined values, the present invention stops acting on said intake valve (13).
  • an intake valve opening system (13), comprising:
  • the common inventive concept to all the claimed protection context refers to the fact of the present invention to provide an intake valve opening system (13) in pressurization chambers (21) for reciprocating machines, so request a lower torque for the start of this reciprocating machine.
  • the present invention acts on the intake valve (13) of a compressor so as to not allow during the first instants of starting the compressor, builds up pressure in the pressurizing chamber. This measure makes the initial torque required for starting said compressor lower, reducing energy consumption and eliminating the need for electrical and electronic components that were used in the prior art to enable the start with higher torques.
  • an intake valve opening system (13) comprising:
  • the controlled environment of action is given by applying electric current.
  • the displacement absorbing means is comprised of at least one of the group defined by: elastic mechanical element; electric current intensity controller; Spring-gas; fluid compression; a calibrated balance masses; or equivalent.
  • the intake valve actuation system is defined by the fact that:
  • the present invention provides a method for starting compressors, defined by the fact that the system is as disclosed by the present invention and said method comprises the medium controlled actuation trigger steps (1) to open an intake valve (13) in accordance with the displacement movement of a piston (12) in the compression direction.
  • the actuating of controlled actuation means (1) takes place during the compressor start.
  • the compressor starting method includes the steps of:
  • the controlled actuation means is disabled when the compressor reaches the pre-defined operating conditions to maintain an operating system.
  • the hermetic type compressor is used to feed cooling cycles.
  • FIG. 1 illustrates how controlled actuation means (1) of intake valves (13) was achieved.
  • the outer casing (2) is associated with a static element (3) and the coil (7) of the solenoid.
  • Said coil (7) is responsible for inducing magnetic force moving piston (4) to promote movement of said movable piston (4) towards the static element (3).
  • This movement causes deformation of a return spring (9), which is responsible for returning the movable piston (4) to its original position when the coil (7) do not exert more force on said movable piston (4).
  • the movable plunger (4) is associated with the internal sleeve (6) by interference fitting between them and the actuating stem (5) is fixed to the relief spring (10) the locking element (8).
  • the movement promoted in the movable piston (4) causes the elements associated with it also having said movement, and it is this movement that causes the intake valve (13) present at the inlet of a reciprocating machine, is kept open.
  • Figures 2, 3 and 4 show a sequence of how the controlled action is taken intake valve (13) in reciprocating compressors.
  • Figure 2 illustrates the initial time of operation of the controlled actuation means (1).
  • the coil (7) attracts the movable piston (4) into an opening direction (OD) by moving the actuating stem (5) and compressing the return spring (9).
  • the movable piston (4) is magnetically attracted by the coil (7) leading from the relieving spring (10) associated with the actuating stem (5) via the locking element (8).
  • the actuating stem (5) opens intake valve (13).
  • Figure 3 illustrates the means for controlled actuation (1) at an instant that the movable piston (4) is in an intermediate position of the displacement in opening direction (OD).
  • the return spring (9) remains depressed, the inner stem (5) continues to move in the opening direction (OD), once the locking element (8) associating said inner stem (5) to the relief spring (10) and the inner sleeve (6) mounted with interference on the movable piston (4), also follow the movement in the opening direction (OD).
  • Figure 4 illustrates the moment when the piston (4) completes the displacement in opening direction (OD), with the return spring (9) fully compressed and the actuating stem (5), the inner sleeve (6) and the locking element (8) completely displaced to said opening direction (OD). In this position, an intake valve (13) is fully open, depending on displacement of actuating stem (5).
  • Figure 5 illustrates the moment when, due to shock from a piston (12) against the intake valve (13), the displacement of the actuating stem (5) and the locking element (8) in a direction relief (RD), tensioning the relief spring (10).
  • the displacement of the actuating stem (5), according to the relief direction (RD), allows the return of the intake valve (13) which is displaced by movement of a piston (12) operating in a reciprocating compressor.
  • the relief spring (10) has calibration such that deformation is promoted with less effort than the supportable by the magnetic field imposed by the coil (7), this ensures that said relief spring (10) always deform first, avoiding the displacement of the movable plunger (4).
  • the relief spring (10) is responsible for displacing the actuating stem (5) and locking element (8) in opening direction (OD). This movement again opens the intake valve (13) so as not to allow pressurization to take place in a chamber (21) of a reciprocating compressor.
  • the inner sleeve (6) remains fixed in the movable piston (4). It is an opening and closing cycle of the intake valve (13) in accordance with the teachings of the present invention, and this cycle of opening and closing is responsible for not allowing pressure build-up in the chamber (21), reducing the amount torque required for starting a compressor containing the teachings disclosed herein.
  • relief intake valve (13) relate to the use of calibrated weights on the locking element (8) so as to dispense with the relief spring (10). Said calibrated weights are adjusted for moving in the opening direction (OD) when the movable piston (4) moves downwardly, moving the actuating stem (5) so as to open the intake valve (13). Analogously to the operation of the relief spring (10) calibrated weights are adjusted for moving towards relief (RD) when the piston (12) contacting the intake valve (13).
  • Figure 6 illustrates a set pressurizer (22) comprised of the pressurizing chamber (21), the piston assembly (12), rod (19) and handle (20), responsible for pressurization of a fluid in a set pressurizer (22).
  • the pressurizer said assembly (22) further comprises intake ducts (17), inlet chamber (15), exhaust ducts (18) and discharge volume (16).
  • the discharge valve (14) operates to transfer pressurized fluid from the pressurizing chamber (21) into the discharge volume (16).
  • the means controlled actuation (1) is also shown acting in the opening of the intake valve (13). In this position, the internal housing elements (2) through the controlled actuation (1) assume a position similar to that shown in Figure (4 ).
  • the crank (20) actuating the rod (19) performs a movement in the rotation direction (N).
  • Figure 7 illustrates the pressurizer assembly (22) at the instant that the piston (12) touches the intake valve (13) actuated by actuation means controlled (1).
  • the moment depicted in figure 7 is analogous to that shown in Figure 5 , with the actuating stem (5) and displaced deforming the relief spring (10) in the direction of relief (RD).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP16191483.3A 2015-10-02 2016-09-29 Einlassventilbetätigungssystem, startverfahren für verdichter und dessen verwendung Withdrawn EP3153703A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102015025294A BR102015025294A2 (pt) 2015-10-02 2015-10-02 Admission valve actuation system, compressor start-up method and its uses

Publications (1)

Publication Number Publication Date
EP3153703A1 true EP3153703A1 (de) 2017-04-12

Family

ID=57042760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16191483.3A Withdrawn EP3153703A1 (de) 2015-10-02 2016-09-29 Einlassventilbetätigungssystem, startverfahren für verdichter und dessen verwendung

Country Status (4)

Country Link
US (1) US20170096996A1 (de)
EP (1) EP3153703A1 (de)
CN (1) CN106560621A (de)
BR (1) BR102015025294A2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057831A1 (de) * 2000-11-21 2002-05-23 Knf Flodos Ag Sursee Membranpumpe
US20070272890A1 (en) 2006-05-26 2007-11-29 Herbert Kopecek Electromagnetic actuators
BRPI0806059A2 (pt) 2008-11-27 2010-09-21 Whirlpool Sa sistema para atuação em válvula de admissão de um compressor a gás, compressor de gás e equipamento de refrigeração

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057831A1 (de) * 2000-11-21 2002-05-23 Knf Flodos Ag Sursee Membranpumpe
US20070272890A1 (en) 2006-05-26 2007-11-29 Herbert Kopecek Electromagnetic actuators
BRPI0806059A2 (pt) 2008-11-27 2010-09-21 Whirlpool Sa sistema para atuação em válvula de admissão de um compressor a gás, compressor de gás e equipamento de refrigeração
EP2373891B1 (de) * 2008-11-27 2012-10-31 Whirlpool S.A. Ventilbetätigungssystem für ein saugventil eines gaskompressors für eine kälteeinrichtung

Also Published As

Publication number Publication date
BR102015025294A2 (pt) 2017-05-02
CN106560621A (zh) 2017-04-12
US20170096996A1 (en) 2017-04-06

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