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GB1486725A - Heat recovery apparatus in a dishwasher - Google Patents

Heat recovery apparatus in a dishwasher

Info

Publication number
GB1486725A
GB1486725A GB8585/75A GB858575A GB1486725A GB 1486725 A GB1486725 A GB 1486725A GB 8585/75 A GB8585/75 A GB 8585/75A GB 858575 A GB858575 A GB 858575A GB 1486725 A GB1486725 A GB 1486725A
Authority
GB
United Kingdom
Prior art keywords
valve
heat
washing water
evaporator
heat pump
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
Application number
GB8585/75A
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.)
Stierlen Maquet AG
Original Assignee
Stierlen Maquet AG
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 Stierlen Maquet AG filed Critical Stierlen Maquet AG
Priority to GB8585/75A priority Critical patent/GB1486725A/en
Publication of GB1486725A publication Critical patent/GB1486725A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

1486725 Dishwashing machines STIERLENMAQUET AG 28 Feb 1975 8585/75 Heading A4F [Also in Division F4] A dishwashing machine is provided with a heat recovery apparatus which comprises a heat pump assembly 1 disposed in a housing 17 on a housing 4 of the dishwashing machine and which condenses steam issuing from the machine to recover the heat of vaporization and yielding up the recovered heat to washing or rinsing water used in the machine. The machine shown has entry and exit rails 5, 6. Air-steam mixture, emitted from the inlet and outlet of the housing 4, is drawn by a fan 16 in the heat pump assembly through ducts 2, 3, inlet slots 21, 31 in the housing 17, and an evaporator 12 where the steam condenses, and the working substance of the heat pump, e.g. difluorodichloromethane, is evaporated. Air is discharged through an opening 19, whilst the evaporated working substance is compressed by a motor driven compressor 11 and fed through condensers 13, 14 where heat is abstracted therefrom by washing and rinsing water. The operation of the heat pump is regulated by a thermostatic device in accordance with the heat output of the dishwashing machine. The working substance enters the evaporator 12 via series connected electromagnetic shut-off and expansion valves 115, 114 in parallel with series connected electromagnetic shut-off and expansion valves 116, 113. During heating of the washing water, a thermostat (111), Fig. 7 (not shown), maintains the valve 116 open whilst the valve 115 is closed, and the flow to the evaporator 12 is via the expansion valve 113 which is thermostatically controlled in accordance with the temperature of the working substance leaving the evaporator 12. When the washing water is heated up, a thermostat (112) closes the valve 116, and the compressor 11 is de-energized by opening of a suction operated switch (111). The washing water temperature then rises so that the thermostat (112) reopens the valve 116 and switch (111) again closes. Such alternate switching off and on of the compressor 11 maintains the washing water temperature approximately constant until energization of a washing water pump. The valve 115 is then opened so that the flow to the evaporator 12 is controlled by the expansion valve 114, which has a much stronger throttling action than the valve 113 so that the washing water is cooled. The thermostat (112) is thereby actuated to close the valve 115 and open the valve 116 so that the heat pump continues to operate at full load, controlled by the expansion valve 113.
GB8585/75A 1975-02-28 1975-02-28 Heat recovery apparatus in a dishwasher Expired GB1486725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8585/75A GB1486725A (en) 1975-02-28 1975-02-28 Heat recovery apparatus in a dishwasher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8585/75A GB1486725A (en) 1975-02-28 1975-02-28 Heat recovery apparatus in a dishwasher

Publications (1)

Publication Number Publication Date
GB1486725A true GB1486725A (en) 1977-09-21

Family

ID=9855312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8585/75A Expired GB1486725A (en) 1975-02-28 1975-02-28 Heat recovery apparatus in a dishwasher

Country Status (1)

Country Link
GB (1) GB1486725A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006015820A1 (en) * 2004-08-09 2006-02-16 Linde Kältetechnik Gmbh Refrigeration cycle and method for operating such a refrigeration cycle
WO2010120657A1 (en) * 2009-04-15 2010-10-21 Premark Feg L.L.C. Box-type warewasher including heat recovery system for reducing air moisture level at the end of cycle
US8157924B2 (en) 2008-04-09 2012-04-17 Premark Feg L.L.C. Warewasher including heat recovery system with hot water supplement
DE102010044123A1 (en) * 2010-11-18 2012-05-24 BSH Bosch und Siemens Hausgeräte GmbH Device for recovering effluent heat from dishwasher installed in kitchen, has vaporizer that is thermally connected to wall of container which is coated with water stain resistant coating
CN107550441A (en) * 2017-10-30 2018-01-09 湖南科技大学 A kind of Multifunctional heat pump system for dish-washing machine
US10039434B2 (en) 2014-03-17 2018-08-07 Samsung Electronics Co., Ltd. Household appliance having drying apparatus
ES2767722A1 (en) * 2018-12-18 2020-06-18 Bsh Electrodomesticos Espana Sa Dishwasher machine with heat pump (Machine-translation by Google Translate, not legally binding)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006015820A1 (en) * 2004-08-09 2006-02-16 Linde Kältetechnik Gmbh Refrigeration cycle and method for operating such a refrigeration cycle
US8157924B2 (en) 2008-04-09 2012-04-17 Premark Feg L.L.C. Warewasher including heat recovery system with hot water supplement
US8663395B2 (en) 2008-04-09 2014-03-04 Premark Feg L.L.C. Warewasher including heat recovery system with hot water supplement
WO2010120657A1 (en) * 2009-04-15 2010-10-21 Premark Feg L.L.C. Box-type warewasher including heat recovery system for reducing air moisture level at the end of cycle
US8679261B2 (en) 2009-04-15 2014-03-25 Premark Feg L.L.C. Box-type warewasher including heat recovery system for reducing air moisture level at the end of cycle
DE102010044123A1 (en) * 2010-11-18 2012-05-24 BSH Bosch und Siemens Hausgeräte GmbH Device for recovering effluent heat from dishwasher installed in kitchen, has vaporizer that is thermally connected to wall of container which is coated with water stain resistant coating
US10039434B2 (en) 2014-03-17 2018-08-07 Samsung Electronics Co., Ltd. Household appliance having drying apparatus
CN107550441A (en) * 2017-10-30 2018-01-09 湖南科技大学 A kind of Multifunctional heat pump system for dish-washing machine
CN107550441B (en) * 2017-10-30 2023-12-29 湖南科技大学 Multifunctional heat pump system for dish washer
ES2767722A1 (en) * 2018-12-18 2020-06-18 Bsh Electrodomesticos Espana Sa Dishwasher machine with heat pump (Machine-translation by Google Translate, not legally binding)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930228