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WO2006100709A1 - Systeme integre de production de chaud et de froid pour leur utilisation simultanee par des dispositifs de refroidissement et de chauffage - Google Patents

Systeme integre de production de chaud et de froid pour leur utilisation simultanee par des dispositifs de refroidissement et de chauffage Download PDF

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Publication number
WO2006100709A1
WO2006100709A1 PCT/IT2006/000182 IT2006000182W WO2006100709A1 WO 2006100709 A1 WO2006100709 A1 WO 2006100709A1 IT 2006000182 W IT2006000182 W IT 2006000182W WO 2006100709 A1 WO2006100709 A1 WO 2006100709A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
hot
cold
machine
units
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.)
Ceased
Application number
PCT/IT2006/000182
Other languages
English (en)
Inventor
Mauriel Vicentini
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.)
LAMBDA SpA
Original Assignee
LAMBDA SpA
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 LAMBDA SpA filed Critical LAMBDA SpA
Priority to EP06728503A priority Critical patent/EP1861664A1/fr
Publication of WO2006100709A1 publication Critical patent/WO2006100709A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/04—Desuperheaters

Definitions

  • TECHNICAL FIELD This invention concerns a machine which, by means of an integrated system and adding a control unit for the production of hygienic cold with particular circuits and a number of heat exchangers, makes it possible to simultaneously supply the hygienic cold system, the heating system by generating hot water and the plumbing, sanitation and water services by generating hot water.
  • the same machine can also be used for the air- conditioning system, whether it is: a water-powered system; a direct expansion system; a mixed water-powered and direct expansion system.
  • the technical field includes all commercial or industrial activities in which the generation of cold in order to carry out the activity is associated with thermal requirements due to the air-conditioning of the rooms in which the activities are carried out.
  • plants designed to produce cold used in the food sector by commercial or industrial businesses normally use a system consisting of one or more motor-driven compressors coupled with one or more condenser units used by the coolers.
  • Such equipment fulfils the commercial use for which it is designed, for example in cooling refrigerated cabinets or cold rooms, and industrial use, for example for freezing food or processing goods.
  • another system is used, again consisting of a motor-driven compressor and a condenser unit used by the coolers which cool the air in the various rooms.
  • the use of the heat pump that is to say the cycle inversion applied to the air-conditioning system, is not able to simultaneously produce cold for refrigeration and air conditioning, and heat, and cannot therefore be used for the purposes described above.
  • This invention proposes to provide a "centralised" system that can resolve most of the drawbacks described above .
  • the invention proposes in particular to provide a system which is able to simultaneously supply cooling units and heating units so that a single unit for the production of hot and cold can satisfy a wide variety of even opposite thermal requirements, whether they involve heating or cooling, avoiding the need to use one or more dedicated machines for each individual system.
  • This is achieved by means of an integrated system for the production of hot and cold to be used simultaneously by cooling and heating units, the features of which are described in the main claim.
  • the system will be smaller than the sum of all the systems with the same power which would otherwise be used for the purposes it can offer; this will allow the use of a single technical room equivalent to little more than a machine for the production of hygienic cold with the advantage of also serving the air-conditioning system and the heating system; lower energy consumption, thus lower energy requirements and reduced electrical system dimensions (control panels, cables, components) with respect to systems needing several machines each;
  • This invention concerns a machine which, by means of an integrated plant engineering system, can satisfy the thermal requirements of a cooling system and, if required, an air-conditioning system guaranteeing, without any additional energy consumption, the requirements of a heating system and/or plumbing, sanitation and water services or other systems requiring heat.
  • a cooling system or an air-conditioning system is to generate cold (better defined as the removal of heat) in a certain environment which, in the case of cooling systems, is a well-defined and well thermally insulated area, such as for example a refrigerated cabinet or a cold room.
  • air-conditioning systems it is a building with heat loss and heat entry from the exterior. In both cases the machines which power these systems absorb electrical energy and produce heat as a waste product which is dispersed into the environment.
  • the principle of the machine according to the invention is the recovery of the heat removed from the air- processed spaces (cold rooms, building) plus the heat generated by the mechanical functioning of the compressors almost equivalent to the electrical energy absorbed (electrical absorption), which would otherwise be completely lost in the environment, and its use for a series of functions which need this energy in the form of heat.
  • the creation of the machine starts with the construction of a unit for generating hygienic cold that uses cooling gas compressed and then expanded to remove heat from a thermally insulated environment, generally represented by refrigerated cabinets and cold rooms.
  • Compressors are used to compress the gas, while condensers are used for condensation of the gas (change from gas to liquid). Finally, expansion valves connected to an exchange battery, consisting of an evaporator, are used to expand the liquid gas .
  • a tube nest (or plate) evaporator For the production of cold for air-conditioning a tube nest (or plate) evaporator is used, while in order to recover the hot water heat another tube nest (or plate) exchanger is used.
  • the machine can consist of modular structures, for example with standard europallet dimensions, specifically constructed to be assembled by the installer after transport to the final technical room, in order to satisfy the requirements of size and space in activities located in old buildings or which in any case have a limited amount of space available.
  • figure 1 is a schematic view of the system according to the invention comprising the machine and the integrated plant engineering system, the external unit and the cooling unit of the sale area;
  • figure 2 shows a schematic view of the hot water production circuit and unit;
  • figure 3 is a schematic view of the cooled water circuit and unit;
  • - figure 4 shows a schematic view of a system according to another embodiment, according to a solution with an absorption unit.
  • the machine with the integrated plant engineering system is generally indicated with 10 in figure 1 and comprises a hot water production circuit 11 and a chilled water production circuit 12.
  • the machine 10 is in turn connected on one side to an external unit 13 comprising the condenser 14 and on the other to the sales area unit 15 which includes the refrigerated cabinets 16, the split units 17 and the air- processing unit 18.
  • the hot water production circuit 11 is shown in detail in figure 2 and comprises an exchanger 19 which on one hand is supplied by the hot gas circuit 20 for the condensers 14, and on the other hand supplies hot water to the circuit 21 connected to the air processing unit 18, whose outlet 22 provides hot air for heating the rooms .
  • the chilled water production circuit 12 is, on the other hand, shown in figure 3 and comprises an evaporator 23 to which a duct 24 is connected for the entry of liquid gas and another duct 25 for the output of expanded gas.
  • the evaporator 23 produces gas flows which reach the air processing unit 18 through the ducts 24 and 25 of liquid gas and expanded gas respectively. In this way, the air processing unit 18 will produce cooled air to cool the rooms in the summer months.
  • Both the hot water production unit 11 and the chilled water production unit 12 comprise components that cause the passage of flows of liquid, aeriform and gaseous substances to supply the system.
  • the components used in the system can comprise compressors 26, 1 liquid receiver, 1 plate exchanger and 1 tube nest exchanger.
  • the system also uses maximum pressure safety pressure switches on each compressor, general automatic-reset minimum pressure switches, general automatic-reset maximum pressure switches, a maximum pressure gauge and suction manifolds for the parallel-connected compressors.
  • the system is also equipped with oil separators, nonreturn valves mounted on the outlet of the oil separator, oil receivers, oil level controls, dewaterer solid- cartridge filters and suction mesh-cartridge filters.
  • the tube nest evaporator 23 is mounted on the same frame and comprises a thermostat valve, a flow control valve, a control fitted on the electrical panel of the central unit, a safety thermostat and flow meter and the plate heat exchanger 19.
  • the system also comprises a pump 27 for hot water heating, a pump 29 for cold water cooling, expansion tanks charges with nitrogen, flow meters, automatic system-supply units complete with non-return valves, mesh filters, pressure gauge, on-off and by-pass valves, and other safety components, including pressure gauges complete with scale- test valve and thermometers.
  • the system comprises an electrical control panel on the machine, complete with electrical components to control the compressors and the pumps, and an electronic control unit for adjustment of the TN compressors, with a compressor rotation start-up delay system, and for condensation control, shutdown warning lights and compressor preheating and start-up manual selectors.
  • an emergency system is foreseen in the event of faults with the TN control unit, consisting of a minim pressure switch with a timer to disconnect the control unit, a minimum pressure switch to control the compressors, an electrical control panel complete with all components for its functioning and a condenser for remote control or three-phase motors.
  • the machine can consist of modules that can be transported individually, for example five modules, and assembled on site.
  • the electrical control panel can be installed on the machine coupled with the end modules of the machine, or on the wall close to the machine.
  • a plate or tube nest exchanger 19 in the discharge line of the compressors 10 a plate or tube nest exchanger 19 is positioned in series with the normal condenser, and in which a circuit containing gas 20 exchanges heat with the other circuit containing water 11; b) the hot water obtained in this way, through a pumping system 27, is sent towards the heating system ducts 21 and/or the plumbing systems.
  • the suction line of the compressors 26 is connected to a circuit supplying the air-conditioning system, which can be constructed in four different ways:
  • Chiller type cooled water solution a tube nest exchanger 23 is used connected to the suction line 25, limiting the suction pressure with a pressure relief valve; the gas contercurrent circuit contains water 28 which cools by transferring heat to the gas and through a pumping system 29 is sent to the exchange batteries 30 of the air processing units 18 (air processing control units, fan coils, etc.); 2) Split type direct expansion solution: a suction line is directly connected to the direct expansion evaporators 17 of the air processing units (one or more) limiting the suction pressure with pressure relief valves (one for each evaporator);
  • Absorption unit solution (figure 4): the discharge line of the compressors which contains the high temperature gas is connected to an absorption unit 31, which replaces the exchanger 19, and then to the condensers; in this way the heat transported by the gas discharged by the compressors is used by the absorption unit to produce chilled water to be used for the air-conditioning system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention porte sur un système intégré d'une technique industrielle s'appliquant à la production de chaud et de froid pour leur utilisation simultanée dans des appareils de refroidissement et de chauffage. Le système utilise une machine (10) raccordée, d'un côté, aux équipements utilisateur et de production (15) et, de l'autre, au condensateur (13). La machine comprend au moins un module de production d'eau chaude (11) et au moins un module de production d'eau froide (2) comprenant respectivement au moins un échangeur (19) et au moins un évaporateur (23) qui produit l'eau fraîche.
PCT/IT2006/000182 2005-03-24 2006-03-23 Systeme integre de production de chaud et de froid pour leur utilisation simultanee par des dispositifs de refroidissement et de chauffage Ceased WO2006100709A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06728503A EP1861664A1 (fr) 2005-03-24 2006-03-23 Systeme integre de production de chaud et de froid pour leur utilisation simultanee par des dispositifs de refroidissement et de chauffage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR2005A00038 2005-03-24
ITVR20050038 ITVR20050038A1 (it) 2005-03-24 2005-03-24 Sistema integrato di impiantistica per la produzione di calore e di freddo per asservire unita' frigorifere e contemporaneamente unita' riscaldanti

Publications (1)

Publication Number Publication Date
WO2006100709A1 true WO2006100709A1 (fr) 2006-09-28

Family

ID=36588776

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000182 Ceased WO2006100709A1 (fr) 2005-03-24 2006-03-23 Systeme integre de production de chaud et de froid pour leur utilisation simultanee par des dispositifs de refroidissement et de chauffage

Country Status (3)

Country Link
EP (1) EP1861664A1 (fr)
IT (1) ITVR20050038A1 (fr)
WO (1) WO2006100709A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211125A1 (fr) * 2009-01-27 2010-07-28 Zanotti S.p.A. Installation et procédé de production d'eau chaude et froide devant alimenter un ou plusieurs utilisateurs thermiques
CN102168896A (zh) * 2011-03-15 2011-08-31 李隆 热泵式空调冷热水设备及水疗机
WO2012122853A1 (fr) * 2011-03-15 2012-09-20 Li Long Machine d'hydrothérapie à pompe à chaleur et procédé d'hydrothérapie physique comportant la rétroaction biologique, de la musique et de la lumière chromatique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004443A1 (fr) * 1987-11-03 1989-05-18 Dittell Edward W Appareil de stockage et de transfert d'energie thermique
US5372011A (en) * 1993-08-30 1994-12-13 Indoor Air Quality Engineering, Inc. Air conditioning and heat pump system utilizing thermal storage
WO2001020234A1 (fr) * 1999-09-15 2001-03-22 Ut-Battelle, Llc. Ensemble combine refrigerateur, pompe a chaleur et dispositif de chauffage d'eau
US6751972B1 (en) * 2002-11-18 2004-06-22 Curtis A. Jungwirth Apparatus for simultaneous heating cooling and humidity removal
WO2004102086A1 (fr) * 2003-05-15 2004-11-25 Daikin Industries, Ltd. Refrigerateur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004443A1 (fr) * 1987-11-03 1989-05-18 Dittell Edward W Appareil de stockage et de transfert d'energie thermique
US5372011A (en) * 1993-08-30 1994-12-13 Indoor Air Quality Engineering, Inc. Air conditioning and heat pump system utilizing thermal storage
WO2001020234A1 (fr) * 1999-09-15 2001-03-22 Ut-Battelle, Llc. Ensemble combine refrigerateur, pompe a chaleur et dispositif de chauffage d'eau
US6751972B1 (en) * 2002-11-18 2004-06-22 Curtis A. Jungwirth Apparatus for simultaneous heating cooling and humidity removal
WO2004102086A1 (fr) * 2003-05-15 2004-11-25 Daikin Industries, Ltd. Refrigerateur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211125A1 (fr) * 2009-01-27 2010-07-28 Zanotti S.p.A. Installation et procédé de production d'eau chaude et froide devant alimenter un ou plusieurs utilisateurs thermiques
CN102168896A (zh) * 2011-03-15 2011-08-31 李隆 热泵式空调冷热水设备及水疗机
WO2012122853A1 (fr) * 2011-03-15 2012-09-20 Li Long Machine d'hydrothérapie à pompe à chaleur et procédé d'hydrothérapie physique comportant la rétroaction biologique, de la musique et de la lumière chromatique

Also Published As

Publication number Publication date
EP1861664A1 (fr) 2007-12-05
ITVR20050038A1 (it) 2006-09-25

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