EP3141751A1 - Equalization system of compressors pressure, equalization pressure method and system operation in cooling hermetic compressors - Google Patents

Equalization system of compressors pressure, equalization pressure method and system operation in cooling hermetic compressors Download PDF

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Publication number
EP3141751A1
EP3141751A1 EP16188054.7A EP16188054A EP3141751A1 EP 3141751 A1 EP3141751 A1 EP 3141751A1 EP 16188054 A EP16188054 A EP 16188054A EP 3141751 A1 EP3141751 A1 EP 3141751A1
Authority
EP
European Patent Office
Prior art keywords
compressor
valve mechanism
pressure equalization
pressure
equalization
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Withdrawn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
EP16188054.7A
Other languages
German (de)
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.)
Nidec Global Appliance Compressores e Solucoes em Refrigeracao Ltda
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 EP3141751A1 publication Critical patent/EP3141751A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • 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
    • F04B49/035—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type
    • 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
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/07—Exceeding a certain pressure value in a refrigeration component or cycle
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0262—Compressor control by controlling unloaders internal to the compressor

Definitions

  • the present invention describes a valve mechanism for compressors.
  • the present invention lies in the field of mechanical engineering, more specifically in the field of fluid and cooling mechanics.
  • the compression refrigeration systems stand out for their wide versatility that attends the needs current days. Whether in a simple refrigerator, air conditioning, or even in large refrigeration plants, cooling systems compression enabled large steps in the evolution of the various technical fields.
  • the present invention aims to solve the listed problems in the art, from a valve system able to equalize the pressure between a pressurized medium and a first pressurized medium so as to reduce the starting load of the middle pressurizer.
  • the present invention provides an equalization system of compressor pressure, comprising:
  • the present invention provides a pressure equalization method for compressors, where the primary valve mechanism (3) promotes pressure equalization between the discharge volume (8) and inlet volume (9) to a time before the start of the compressor.
  • the present invention provides the use of pressure equalization system for compressors, where the system is as defined in the present invention and the compressor being a hermetic compressor for refrigeration systems.
  • inventive concept common to all the claimed protection contexts refers to a device capable of equalizing the pressure between compressor chambers in order to avoid the need for high loads at the time of starting of said compressors.
  • the compressor proposed by the present invention is comprised within a hermetic volume (1) enclosed in a hermetic case (10).
  • the system proposed by the present invention is applied in cooling systems.
  • said pressure equalization promotion is initiated by receiving a starting signal from compressor.
  • the system of the present invention comprises a hermetic volume (1) contained within a hermetic case (10).
  • Figure 1 shows a primary valve mechanism (3) responsible for equalizing pressure between the discharge volume (8) and inlet volume (9), wherein said primary valve mechanism (3) to be released, depressurizes the discharge volume (8) in hermetic volume (1). Once the inlet volume (9) in pressure equilibrium with the hermetic volume (1), the pressure between the discharge volumes (8) becomes the same to said inlet volume (9).
  • Figure 1 also displays the secondary valve mechanism (2) responsible for preventing the working fluid that has been pressurized in the compressor outlet line does not return.
  • This secondary valve mechanism (2) it is necessary for the pressure equalization between the primary valve mechanisms proposed (3) does not affect the remainder of the pressurized fluid line after the compressor.
  • Figure 1 further illustrates a compression chamber (4) provided with fluid outlet valve (6) and a fluid intake valve (7) operating in synchronization with the piston (5), fundamental for the functioning of an alternative compressor.
  • Figure 2 depicts a variant of the first embodiment where both the primary valve mechanism (3) and the secondary valve mechanism (2) have been allocated within the hermetic volume (1), bounded by hermetic case (10).
  • Figure 3 shows a second possible embodiment for the present invention.
  • the system of this second embodiment comprises a hermetic volume (1) contained within a hermetic case (10).
  • Figure 3 also shows a primary valve mechanism (3) responsible for equalizing pressure between the discharge volume (8) and inlet volume (9), wherein said primary valve mechanism (3) when released, depressurized discharge volume (8) in an external duct (11) linking the primary valve mechanism (3) to the inlet volume (9), or to any duct that joins to said inlet volume (9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Compressor (AREA)
EP16188054.7A 2015-09-11 2016-09-09 Equalization system of compressors pressure, equalization pressure method and system operation in cooling hermetic compressors Withdrawn EP3141751A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102015022515A BR102015022515A2 (pt) 2015-09-11 2015-09-11 sistema de equalização de pressão de compressores, método de equalização de pressão e uso do sistema em compressores herméticos de refrigeração

Publications (1)

Publication Number Publication Date
EP3141751A1 true EP3141751A1 (en) 2017-03-15

Family

ID=56893858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16188054.7A Withdrawn EP3141751A1 (en) 2015-09-11 2016-09-09 Equalization system of compressors pressure, equalization pressure method and system operation in cooling hermetic compressors

Country Status (4)

Country Link
US (1) US20170074557A1 (pt)
EP (1) EP3141751A1 (pt)
CN (1) CN106762544A (pt)
BR (1) BR102015022515A2 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11300339B2 (en) 2018-04-05 2022-04-12 Carrier Corporation Method for optimizing pressure equalization in refrigeration equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5651267A (en) * 1993-02-09 1997-07-29 Empresa Brasileira De Compressores S/A - Embraco Starting arrangement for small refrigeration systems
US20020144511A1 (en) * 2001-04-05 2002-10-10 Bristol Compressors, Inc. Pressure equalization system and method
US20050066673A1 (en) * 2001-04-05 2005-03-31 Bristol Compressors, Inc. Pressure equalization system
US20080008604A1 (en) * 2006-07-06 2008-01-10 Bristol Compressors, Inc. High-frequency control of devices internal to a hermetic compressor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08312582A (ja) * 1995-05-23 1996-11-26 Daikin Ind Ltd 圧縮機の逆転防止装置
CN203223368U (zh) * 2013-03-07 2013-10-02 江西景德半导体新材料有限公司 一种维持隔膜压缩机压力平衡系统
CN104564784B (zh) * 2014-12-26 2018-01-19 珠海格力电器股份有限公司 一种用于离心压缩机油箱和吸气口的压力平衡结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5651267A (en) * 1993-02-09 1997-07-29 Empresa Brasileira De Compressores S/A - Embraco Starting arrangement for small refrigeration systems
US20020144511A1 (en) * 2001-04-05 2002-10-10 Bristol Compressors, Inc. Pressure equalization system and method
US20050066673A1 (en) * 2001-04-05 2005-03-31 Bristol Compressors, Inc. Pressure equalization system
US20080008604A1 (en) * 2006-07-06 2008-01-10 Bristol Compressors, Inc. High-frequency control of devices internal to a hermetic compressor

Also Published As

Publication number Publication date
CN106762544A (zh) 2017-05-31
US20170074557A1 (en) 2017-03-16
BR102015022515A2 (pt) 2017-03-21

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