WO2008072273A2 - Modular refrigerating group - Google Patents

Modular refrigerating group Download PDF

Info

Publication number
WO2008072273A2
WO2008072273A2 PCT/IT2007/000859 IT2007000859W WO2008072273A2 WO 2008072273 A2 WO2008072273 A2 WO 2008072273A2 IT 2007000859 W IT2007000859 W IT 2007000859W WO 2008072273 A2 WO2008072273 A2 WO 2008072273A2
Authority
WO
WIPO (PCT)
Prior art keywords
refrigeration circuit
subcooler
recovery
total
fan
Prior art date
Application number
PCT/IT2007/000859
Other languages
French (fr)
Other versions
WO2008072273A3 (en
Inventor
Giovanni Giuseppe Renna
Original Assignee
Giovanni Giuseppe Renna
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 Giovanni Giuseppe Renna filed Critical Giovanni Giuseppe Renna
Publication of WO2008072273A2 publication Critical patent/WO2008072273A2/en
Publication of WO2008072273A3 publication Critical patent/WO2008072273A3/en

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B2400/21—Modules for refrigeration 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers

Definitions

  • the object of the present finding is a modular refrigerating group capable of being easily transformed at low cost from a basic model into any of the possible variants described hereafter.
  • different embodiments of refrigerating groups are known. They take up different configurations according to the required refrigerating power and set-up, the system requirements and the intended use. This means that a product catalogue contains an enormous number of variants of unit models.
  • the finding object of the present invention solves the aforementioned technical problems since it concerns a modular refrigerating group comprising at least one base module consisting of a compressor (1), a condenser (2), an expansion valve (3), an evaporator (4), according to a refrigeration circuit known as basic, said group having the possibility of being configured according to a plurality of different versions and/or set-ups, with or without accessory components, combining the version, the set-up and the number and/or type of accessory, and characterised in that it also comprises suitable exchangers both in "just cold" and heat pump versions, with increased exchange surfaces, at least one replaceable fan, a base electrical board to which it is possible to add one or more precabled modules, at least one compressor with possibility of silencing and a plurality of connection kits geared to adapt the refrigeration circuit to the requirements.
  • the object of the patent thus concerns the advanced industrialisation of a refrigerating group so as to be able to easily transform the base model at low cost into any of the combinations, also acting directly on the installation. It is an absolute novelty in the field that leads to a series of advantages, both for the manufacturer and for the user. For the manufacturer, the main advantages are: • warehouse management of a single basic model that can be simply and cost-effectively transformed, once the order has arrived, into a specific variant;
  • the user obtains greater advantages since he can: • adapt the refrigerating groups to the evolution of the unit requirements; for example the user can buy "just cold” refrigerators and then transform them into heat pumps, should the need arise (for example, decrease in electricity prices and/or increase in methane prices); equally, he can decide to transform it into a recovery refrigeration group;
  • fig. 1 represents the circuit of the base module according to the invention, comprising a compressor (1), a condenser (2), an expansion valve (3) and an evaporator (4);
  • • fig. 2 shows the circuit with partial recovery, in which the desuperheater (5) is added between points D of the base circuit; • fig. 3 is the total recovery circuit that is obtained by adding the total recovery (6) and a 3 -way valve between points RT;
  • • fig. 4 illustrates the circuit with subcooling, in which the 3- way subcooler (7) is added between points S of the base circuit; • fig. 5 shows the heat pump circuit, in which, with respect to the base circuit, a 4-way valve (8), solenoid (9) and nonreturn valves (10), an expansion valve (11), a receiver (12) and a separator (13) of liquid are inserted in the circuits between points PdC.
  • the object of the present invention is a modular refrigerating group, conceived to ensure maximum flexibility in terms of construction (industrial process), in terms of storage of the end product, and in terms of installation on the unit. It comprises a series of base modules, for example five, but the number can clearly be extended.
  • each refrigerating group whatever the number of base modules used, is characterised by a version, a set-up and different accessories.
  • the numbers of versions, set-ups, accessories and combinations thereof are purely an indication, as it is indeed also possible to obtain further combinations that are not mentioned without departing from the scope of the present patent document.
  • the versions currently made are:
  • the set-ups foreseen at the moment are: standard, silenced, super-silenced, high-efficiency and high-temperature.
  • the possible accessories are: partial recovery (desuperheater); total recovery (recuperator); recovery from subcooler.
  • Each version can have all of the set-ups.
  • Each version with the set-ups can have the following accessories:
  • the reference circuit without accessories becomes the one represented in fig. 5, circuit for heat pump, where, compared to the basic circuit of fig. 1, a 4-way valve (8), solenoid (9) and nonreturn (10) valves, an expansion valve (1 1), a liquid receiver (12) and a liquid separator (13) are inserted between points PdC.
  • the reference shall be the circuit of fig. 5 plus the reference circuit of the accessory as indicated above.
  • the heat pump version with total recovery shall have the circuit of fig. 5 and that of fig. 3 as reference.
  • the refrigerating group can be transformed into the different versions, with different setups and with one or more accessories, a series of elements have to be modified.
  • - type of air condenser for liquid refrigerator or heat pump
  • the adopted solutions are the following.
  • the type of air condenser in order to simplify things, all of the exchangers are already set up in heat pump version, even in the just cold solutions.
  • the number of rows (therefore the exchange surface) of the exchanger and the flow rate of the cooling fluid (air) are acted upon, in the sense that the high- efficiency and high-temperature versions have a larger exchange surface and a greater air flow rate, in this finding, it has been chosen to have an increased surface area for all of the versions, only being able to vary the air flow rate (less in the standard version). In order to do this one acts upon the fan, an easy-to- replace component.
  • the electrical board With regard to the electrical board, one acts with a standard electrical board to which integration modules precabled for the various versions, set-ups and accessories are added. For the silencing of the compressors made-to-measure sound insulation jackets are used that can be installed very easily.
  • the refrigeration circuit can be modified starting from the basic scheme and combining 4 preset modifications, carried out through industrially prepared connection kits. The schemes are shown in the subsequent figures. Hereafter, the possible combinations are shown, with brief descriptions (for all, as already stated, the condenser is the same).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Modular refrigerating group, comprising at least one base module consisting of a compressor (1), a condenser (2), an expansion valve (3), an evaporator (4), according to a refrigeration circuit known as basic, said group having the possibility of being configured according to a plurality of different versions and/or set-ups, with or without accessory components, combining the version, the set-up and the number and/or type of accessory, and characterised in that it also comprises suitable exchangers both in 'just cold' and heat pump versions, with increased exchange surfaces, at least one replaceable ventilator, a base electrical board to which it is possible to add one or more precabled modules, at least one compressor with possibility of silencing and a plurality of connection kits geared for the refrigeration circuit.

Description

Modular refrigerating group
DESCRIPTION
The object of the present finding is a modular refrigerating group capable of being easily transformed at low cost from a basic model into any of the possible variants described hereafter. In the state of the art different embodiments of refrigerating groups are known. They take up different configurations according to the required refrigerating power and set-up, the system requirements and the intended use. This means that a product catalogue contains an enormous number of variants of unit models.
This approach in the design and manufacture of refrigerating units has a series of disadvantages both for the manufacturer and for the user of the aforementioned units. For the manufacturer, the disadvantages are mainly linked to the warehouse management of numerous variants for each model, to the fact that it is not possible to carry out "just in time" deliveries and that the management of components is not optimal, with a consequent low "purchase power" with regard to the suppliers. For the user, on the other hand, it is not possible to vary the installed power or to adapt the refrigerating groups to changing unit requirements, for example use as heat pump in addition to "just cold"; nor is it possible to adapt a refrigerating group to changing intended uses in a building, for example from office use to hotel use or from commercial use to domestic use. The finding object of the present invention solves the aforementioned technical problems since it concerns a modular refrigerating group comprising at least one base module consisting of a compressor (1), a condenser (2), an expansion valve (3), an evaporator (4), according to a refrigeration circuit known as basic, said group having the possibility of being configured according to a plurality of different versions and/or set-ups, with or without accessory components, combining the version, the set-up and the number and/or type of accessory, and characterised in that it also comprises suitable exchangers both in "just cold" and heat pump versions, with increased exchange surfaces, at least one replaceable fan, a base electrical board to which it is possible to add one or more precabled modules, at least one compressor with possibility of silencing and a plurality of connection kits geared to adapt the refrigeration circuit to the requirements. The object of the patent thus concerns the advanced industrialisation of a refrigerating group so as to be able to easily transform the base model at low cost into any of the combinations, also acting directly on the installation. It is an absolute novelty in the field that leads to a series of advantages, both for the manufacturer and for the user. For the manufacturer, the main advantages are: • warehouse management of a single basic model that can be simply and cost-effectively transformed, once the order has arrived, into a specific variant;
• organisation of production according to the "just in time" model;
• more rational purchasing of components, thus allowing an increase in "leverage" with regard to suppliers.
The user, on the other hand, obtains greater advantages since he can: • adapt the refrigerating groups to the evolution of the unit requirements; for example the user can buy "just cold" refrigerators and then transform them into heat pumps, should the need arise (for example, decrease in electricity prices and/or increase in methane prices); equally, he can decide to transform it into a recovery refrigeration group;
• adapt the refrigerating groups to the variation in intended use of a building; it may be the case that buildings built for a certain use, after a few years will be used for a different use; for example, a building built for telecommunications use can be transformed into a luxury boutique and, then, transformed again into a hotel; in the three changes the refrigerating groups must meet different needs, for which reason the unit cannot be optimised; the object of the present finding allows the characteristics of the machines to be adapted at low cost and industrially; • increase the power of the refrigerating groups by up to 50% thanks to use of a subcooler.
These and other advantages shall become clearer in the following detailed description of the invention that shall refer specifically to tables 1/2 and 2/2 in which some preferred schematic diagrams are represented, as examples and not for limiting purposes. In particular:
• fig. 1 represents the circuit of the base module according to the invention, comprising a compressor (1), a condenser (2), an expansion valve (3) and an evaporator (4);
• fig. 2 shows the circuit with partial recovery, in which the desuperheater (5) is added between points D of the base circuit; • fig. 3 is the total recovery circuit that is obtained by adding the total recovery (6) and a 3 -way valve between points RT;
• fig. 4 illustrates the circuit with subcooling, in which the 3- way subcooler (7) is added between points S of the base circuit; • fig. 5 shows the heat pump circuit, in which, with respect to the base circuit, a 4-way valve (8), solenoid (9) and nonreturn valves (10), an expansion valve (11), a receiver (12) and a separator (13) of liquid are inserted in the circuits between points PdC. With reference to the aforementioned figures, the object of the present invention is a modular refrigerating group, conceived to ensure maximum flexibility in terms of construction (industrial process), in terms of storage of the end product, and in terms of installation on the unit. It comprises a series of base modules, for example five, but the number can clearly be extended. By combining the base modules together any refrigerating or thermal power can be achieved. Each refrigerating group, whatever the number of base modules used, is characterised by a version, a set-up and different accessories. The numbers of versions, set-ups, accessories and combinations thereof are purely an indication, as it is indeed also possible to obtain further combinations that are not mentioned without departing from the scope of the present patent document. The versions currently made are:
A) just cold (liquid refrigerator);
B) heat pumps.
The set-ups foreseen at the moment are: standard, silenced, super-silenced, high-efficiency and high-temperature. The possible accessories are: partial recovery (desuperheater); total recovery (recuperator); recovery from subcooler. Each version can have all of the set-ups. Each version with the set-ups can have the following accessories:
- no accessory: basic refrigeration circuit, figure 1 ; - partial recovery: refrigeration circuit with desuperheater (5), figure 2;
- total recovery: refrigeration circuit with total regenerator (6), figure 3; - partial recovery + recovery from subcooler: refrigeration circuit with desuperheater (5) and subcooler (7), figures 2 and 4;
- total recovery + recovery from subcooler: refrigeration circuit with total regenerator (6) and subcooler (7), figures 3 and 4.
Clearly, in the heat pump version the reference circuit without accessories becomes the one represented in fig. 5, circuit for heat pump, where, compared to the basic circuit of fig. 1, a 4-way valve (8), solenoid (9) and nonreturn (10) valves, an expansion valve (1 1), a liquid receiver (12) and a liquid separator (13) are inserted between points PdC. Should there be accessories, the reference shall be the circuit of fig. 5 plus the reference circuit of the accessory as indicated above. For example, the heat pump version with total recovery shall have the circuit of fig. 5 and that of fig. 3 as reference.
Consequently, each base unit can have 2x5x4 = 40 combinations. Starting from the base module, so that the refrigerating group can be transformed into the different versions, with different setups and with one or more accessories, a series of elements have to be modified. In particular: - type of air condenser (for liquid refrigerator or heat pump)
- exchange capacity of the condenser
- electrical board
- silencing of the compressors - refrigeration circuit
In general, the adopted solutions are the following. As regards the type of air condenser, in order to simplify things, all of the exchangers are already set up in heat pump version, even in the just cold solutions. For the exchange capacity of the condenser, whereas generally the number of rows (therefore the exchange surface) of the exchanger and the flow rate of the cooling fluid (air) are acted upon, in the sense that the high- efficiency and high-temperature versions have a larger exchange surface and a greater air flow rate, in this finding, it has been chosen to have an increased surface area for all of the versions, only being able to vary the air flow rate (less in the standard version). In order to do this one acts upon the fan, an easy-to- replace component. With regard to the electrical board, one acts with a standard electrical board to which integration modules precabled for the various versions, set-ups and accessories are added. For the silencing of the compressors made-to-measure sound insulation jackets are used that can be installed very easily. Finally, the refrigeration circuit can be modified starting from the basic scheme and combining 4 preset modifications, carried out through industrially prepared connection kits. The schemes are shown in the subsequent figures. Hereafter, the possible combinations are shown, with brief descriptions (for all, as already stated, the condenser is the same).
A. Just cold versions
Table A.I - Standard set-up
Figure imgf000009_0001
Table A.2 Silenced set-up
Figure imgf000009_0002
Figure imgf000010_0001
Figure imgf000010_0002
B. Heat pump versions
Table B.I - Standard set-up
Figure imgf000010_0003
Table B.2 Silenced set-up
Figure imgf000011_0001
Table B.3 - Super-silenced set-up
Figure imgf000011_0002
Table B.4 - High-e
Figure imgf000011_0003

Claims

C L A I M S
1) Modular refrigerating group, comprising at least one base module comprising a compressor (1), a condenser (2), an expansion valve (3), an evaporator (4), according to a refrigerating circuit known as basic, said group having the possibility of being configured according to a plurality of different versions and/or set-ups, with or without accessory components, combining the version, the set-up and the number and/or type of accessory, and characterised in that it also comprises suitable exchangers both in "just cold" and heat pump versions, with increased exchange surfaces, at least one replaceable ventilator, a base electrical board to which it is possible to add one or more precabled modules, at least one compressor with possibility of silencing and a plurality of connection kits geared to adapt the refrigeration circuit.
2) Modular refrigerating group according to claim 1, characterised in that said versions in which the unit can be configured are the liquid refrigerator or "just cold" one and the one with heat pump.
3) Modular refrigerating group according to claim 2 characterised in that said liquid refrigerator version can be configured in standard, silenced, super silenced, high- efficiency and high-temperature set-ups. 4) Modular refrigerating group according to claim 3, where said liquid refrigerator standard set-up is characterised as follows: fan with low flow rate and high number of revolutions, no adjustment of the number of fan revolutions, base electrical board, no silencing of the compressors; also characterised by a refrigeration circuit according to one of the following modes: base refrigeration circuit, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
5) Modular refrigerating group according to claim 3, where said liquid refrigerator in silenced set-up is characterised as follows: fan with low flow rate and high number of revolutions, 2-speed adjustment of the number of fan revolutions, base electrical board plus fan speed control module, no silencing of the compressors or silencing with sound insulation jacket; also characterised by a refrigeration circuit according to one of the following modes: base refrigeration circuit, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
6) Modular refrigerating group according to claim 3, where said liquid refrigerator in super-silenced set-up is characterised as follows: fan with low flow rate and many poles for a low number of revolutions, continuous adjustment of the number of fan revolutions, base electrical board plus fan speed control module, no silencing of the compressors or silencing with sound insulation jacket; also characterised by a refrigeration circuit according to one of the following modes: base refrigeration circuit, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
7) Modular refrigerating group according to claim 3, where said liquid refrigerator in high-efficiency and high-temperature set-up is characterised as follows: fan with high flow rate and high number of revolutions, no adjustment of the number of revolutions of the fan, base electrical board, no silencing of the compressors; also characterised by a refrigeration circuit according to one of the following modes: base refrigeration circuit, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
8) Modular refrigerating group according to claim 2 characterised in that said version with heat pump can be configured in standard, silenced, super silenced, high- efficiency and high-temperature set-ups, using as refrigeration circuit for heat pump, the circuit also comprising a 4-way valve (8), solenoid valves (9) and check valves (10), an expansion valve (11), receiver (12) and separator (13) of liquid.
9) Modular refrigerating group according to claim 8, where said heat pump in standard set-up is characterised as follows: fan with low flow rate and high number of revolutions, no adjustment of the number of fan revolutions, base electrical board and additional heat pump board, no silencing of the compressors; also characterised by said refrigeration circuit for a heat pump to which one of the following modes is added: no addition, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
10) Modular refrigerating group according to claim 8, where said heat pump in silenced set-up is characterised as follows: fan with low flow rate and high number of revolutions, 2-speed adjustment of the number of revolutions of the fan, base electrical board and additional heat pump board plus fan speed control module, no silencing of the compressors or silencing with sound insulation jacket; also characterised by said refrigeration circuit for a heat pump to which one of the following modes is added: no addition, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
11) Modular refrigerating group according to claim 8, where said heat pump in super-silenced set-up is characterised as follows: fan with low flow rate and many poles for a low number of revolutions, continuous adjustment of the number of fan revolutions, base electrical board and additional heat pump board plus fan speed control module, no silencing of the compressors or silencing with sound insulation jacket; also characterised by said refrigeration circuit for heat pump to which one of the following modes is added: no addition, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
12) Modular refrigerating group according to claim 8, where said heat pump in high-efficiency and high-temperature set-up is characterised as follows: fan with high flow rate and high number of revolutions, no adjustment of the number of revolutions of the fan, base electrical board and additional heat pump board, no silencing of the compressors; also characterised by said refrigeration circuit for a heat pump to which one of the following modes is added: no addition, partial recovery refrigeration circuit with desuperheater (5), total recovery refrigeration circuit with total regenerator (6), partial recovery refrigeration circuit + recovery from subcooler with desuperheater (5) and subcooler (7), total recovery refrigeration circuit + recovery from subcooler with total regenerator (6) and subcooler (7).
PCT/IT2007/000859 2006-12-13 2007-12-07 Modular refrigerating group WO2008072273A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBA2006A000068 2006-12-13
ITBA20060068 ITBA20060068A1 (en) 2006-12-13 2006-12-13 MODULAR REFRIGERATOR GROUP

Publications (2)

Publication Number Publication Date
WO2008072273A2 true WO2008072273A2 (en) 2008-06-19
WO2008072273A3 WO2008072273A3 (en) 2008-09-25

Family

ID=39512193

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000859 WO2008072273A2 (en) 2006-12-13 2007-12-07 Modular refrigerating group

Country Status (2)

Country Link
IT (1) ITBA20060068A1 (en)
WO (1) WO2008072273A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401847A (en) * 2016-05-19 2017-11-28 中科赛德（北京）科技有限公司 A kind of modular refrigeration equipment

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000977A1 (en) * 1984-07-24 1986-02-13 Conry Ronald D Modular refrigeration system
GB2175679A (en) * 1985-05-03 1986-12-03 Bruno Bernardi Modular fluidic heat exchange unit
JPH06213496A (en) * 1993-01-12 1994-08-02 Toshiba Corp Air conditioner
US5440894A (en) * 1993-05-05 1995-08-15 Hussmann Corporation Strategic modular commercial refrigeration
JPH10170034A (en) * 1996-12-10 1998-06-26 Hitachi Ltd Multiple type air conditioner
JPH10197085A (en) * 1996-12-29 1998-07-31 Sanyo Electric Co Ltd Multiple air conditioning system
US6381972B1 (en) * 1999-02-18 2002-05-07 Hussmann Corporation Multiple zone refrigeration
JP2003279134A (en) * 2002-03-26 2003-10-02 Toto Ltd Heat pump system
EP1434018A2 (en) * 1995-03-14 2004-06-30 Hussmann Corporation Refrigerated merchandiser with modular evaporator coils and electronic evaporator pressure regulator control
US20050044869A1 (en) * 2003-09-02 2005-03-03 International Business Machines Corporation System for cooling multiple logic modules
EP1707898A2 (en) * 2005-03-10 2006-10-04 Hussmann Corporation Strategic modular refrigeration system with linear compressors

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000977A1 (en) * 1984-07-24 1986-02-13 Conry Ronald D Modular refrigeration system
GB2175679A (en) * 1985-05-03 1986-12-03 Bruno Bernardi Modular fluidic heat exchange unit
JPH06213496A (en) * 1993-01-12 1994-08-02 Toshiba Corp Air conditioner
US5440894A (en) * 1993-05-05 1995-08-15 Hussmann Corporation Strategic modular commercial refrigeration
EP1434018A2 (en) * 1995-03-14 2004-06-30 Hussmann Corporation Refrigerated merchandiser with modular evaporator coils and electronic evaporator pressure regulator control
JPH10170034A (en) * 1996-12-10 1998-06-26 Hitachi Ltd Multiple type air conditioner
JPH10197085A (en) * 1996-12-29 1998-07-31 Sanyo Electric Co Ltd Multiple air conditioning system
US6381972B1 (en) * 1999-02-18 2002-05-07 Hussmann Corporation Multiple zone refrigeration
JP2003279134A (en) * 2002-03-26 2003-10-02 Toto Ltd Heat pump system
US20050044869A1 (en) * 2003-09-02 2005-03-03 International Business Machines Corporation System for cooling multiple logic modules
EP1707898A2 (en) * 2005-03-10 2006-10-04 Hussmann Corporation Strategic modular refrigeration system with linear compressors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401847A (en) * 2016-05-19 2017-11-28 中科赛德（北京）科技有限公司 A kind of modular refrigeration equipment

Also Published As

Publication number Publication date
ITBA20060068A1 (en) 2008-06-14
WO2008072273A3 (en) 2008-09-25

Similar Documents

Publication Publication Date Title
CN101821560B (en) Air conditioner
CN104154609B (en) Dual-system heat pump roof unit
WO2011005470A4 (en) Low ambient operating procedure for cooling systems with high efficiency condensers
CN103776114A (en) Direct expansion type heat pump type comprehensive energy utilization system and control method thereof
CN216752525U (en) Cold station unit and integrated cold station system
CN108709333B (en) Operation method and system of secondary throttling middle complete cooling refrigerating system
CN201945082U (en) Integrative industrial water chiller unit
CN113891634A (en) Cold station unit, integrated cold station system, control method of integrated cold station system and related equipment
CN104501406A (en) Multistage air source heat pump for producing high temperature hot water
WO2008072273A2 (en) Modular refrigerating group
CN100445668C (en) Energy-saving refrigerator set
CN2526752Y (en) High-temp heat pump refrigerator set
CN101235993B (en) Four pipe heating pump, hot water three-purpose central air-conditioning system
CN204494786U (en) For the production of the multi-staged air source heat pump of high-temperature-hot-water
CN211290621U (en) Multi-machine head water chilling unit
CN204612244U (en) Modular heat pump
CN104422017A (en) Active heat pipe back plate cooling system
CN112503788A (en) Multi-refrigerant loop refrigerating system and air conditioning equipment
RU148544U1 (en) ENERGY-SAVING REFRIGERATING UNIT
JP5602556B2 (en) Air conditioner indoor unit blowout temperature control method
CN200975800Y (en) Energy-saving type freezing machine set
EP4187178B1 (en) Air conditioning unit, and operation control method and operation control device for air conditioning unit
CN214172596U (en) Multi-refrigerant loop refrigerating system and air conditioning equipment
CN221403522U (en) Heat pump air conditioning system
CN2554527Y (en) Variable frequence domestic central air conditioner

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07866791

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07866791

Country of ref document: EP

Kind code of ref document: A2