EP3370017A1 - Système de réfrigération multi-mode - Google Patents

Système de réfrigération multi-mode Download PDF

Info

Publication number
EP3370017A1
EP3370017A1 EP17159173.8A EP17159173A EP3370017A1 EP 3370017 A1 EP3370017 A1 EP 3370017A1 EP 17159173 A EP17159173 A EP 17159173A EP 3370017 A1 EP3370017 A1 EP 3370017A1
Authority
EP
European Patent Office
Prior art keywords
refrigeration system
unit
external refrigeration
heat
external
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Withdrawn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
EP17159173.8A
Other languages
German (de)
English (en)
Inventor
Kåre LINDROOS
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.)
HUURRE FINLAND Oy
Original Assignee
Huurre Group Oy
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 Huurre Group Oy filed Critical Huurre Group Oy
Priority to EP17159173.8A priority Critical patent/EP3370017A1/fr
Priority to CN201710274103.0A priority patent/CN108534411A/zh
Priority to PCT/EP2018/055149 priority patent/WO2018158414A1/fr
Publication of EP3370017A1 publication Critical patent/EP3370017A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • 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
    • 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
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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—Component parts or details not otherwise provided for in this subclass
    • F25B2400/06—Several compression cycles arranged in parallel
    • F25B2400/061—Several compression cycles arranged in parallel the capacity of the first system being different from the second

Definitions

  • the invention relates to a multi-mode refrigeration system.
  • IPC class F25 discloses combined heating and refrigeration systems. As sustainable development becomes more important, further sophistication in development and operation of such systems is desirable.
  • the present invention seeks to provide an improved multi-mode refrigeration system.
  • control unit for the multi-mode refrigeration system as specified in claim 9.
  • a computer-readable medium comprising computer program code for the control unit as specified in claim 10.
  • the invention may provide the advantage that the same multi-mode refrigeration unit may be used flexibly and optimized for different cooling functions.
  • An optimized efficiency may be obtained as the system operates in two different operation modes taking into account cooling and heating needs.
  • a multi-mode refrigeration system 100 comprises a refrigeration unit 140 to produce cold, referenced with '-', and a heat recovery unit 130 coupled with the refrigeration unit 140 to produce heat, referenced with '+'.
  • the refrigeration unit 140 operates according to the well-known vapour-compression cycle.
  • the heat recovery unit 130 operates according to the well-known heat pump principle.
  • the heat recovery unit 130 may comprise one or more heat reclaim accumulators 132.
  • the refrigeration unit 140 acts as a heat source, and the heat reclaim accumulators 132 as the heat sink.
  • the multi-mode refrigeration system 100 comprises three interfaces: a first interface 150 to exchange heat energy +- with a first external refrigeration system 170 with a first temperature requirement, a second interface 152 to exchange heat energy +- with a second external refrigeration system 180 with a second temperature requirement, and a control interface 154 to control, referenced with 'C', a third external refrigeration system 182.
  • the first interface 150 and the second interface 152 may be implemented with appropriate tubes and valves controllable by the control unit 102.
  • the control interface 154 as well as the other control interfaces C controlled by the control unit 102 may be implemented with appropriate wired/wireless communication technologies and standard/proprietary protocols such as an industrial control bus.
  • the wireless communication is implemented with a suitable cellular communication technology such as GSM, GPRS, EGPRS, WCDMA, UMTS, 3GPP, IMT, LTE, LTE-A, etc. and/or with a suitable non-cellular communication technology such as Bluetooth, Bluetooth Low Energy, Wi-Fi, WLAN, Zigbee, etc.
  • the wired communication is implemented with a suitable communication technology utilizing coaxial cable, twisted pair or fibre optic such as LAN or the Ethernet.
  • a fieldbus such as PROFIBUS, DANBUSS, or Modbus
  • the communication traffic may also be transported (in an encrypted form, for example) in the Internet.
  • the multi-mode refrigeration system 100 also comprises a control unit 102 to select 110 an operation mode (for the multi-mode refrigeration system 100).
  • the multi-mode refrigeration system 100 operates in two different modes.
  • control unit 102 activates 112 the first interface 150 and sets C a first evaporation temperature to the refrigeration unit 140 to optimize operation with the first external refrigeration system 170 to maintain the first temperature requirement.
  • control unit 102 activates 114 the second interface 152 and sets C a second evaporation temperature to the refrigeration unit 140 to optimize operation with the second external refrigeration system 180 to maintain the second temperature requirement, sets a target for heat + produced with the heat recovery unit 130, controls C the heat recovery unit 130 to produce an amount of heat + meeting the target, and transmits C a control signal through the control interface 154 to the third external refrigeration system 182 to regulate its operation so that the second external refrigeration system 180 is capable of producing enough heat + reclaimed with the heat recovery unit 130 to meet the target.
  • the multi-mode refrigeration system 100 is capable of operating with two different entities: in the first mode 112 with the first external refrigeration system 170, and in the second mode 114 in concert with the second external refrigeration system 180 and the third external refrigeration system 182 and the heat recovery unit 130.
  • An advantage may be that an utilization rate of the multi-mode refrigeration system 100 may be increased. This may be especially beneficial if the multi-mode refrigeration system 100 operates in a more efficient manner with the second external refrigeration system 180 than the third external refrigeration system 182.
  • first evaporation temperature and the second evaporation temperature are selected such that each of them optimizes the operation in their mode with the refrigeration unit 140. As the first evaporation temperature and the second evaporation temperature are different, an energy-optimized solution in each operation mode 112, 114 is obtained.
  • the operation of the first external refrigeration system 170 is periodical, and operation of the second external refrigeration system 180 is auxiliary to a third external refrigeration system 182.
  • the periodical nature may refer to seasons: in colder climates, the first external refrigeration system 170 may need to be used only during the summer months, for example.
  • the periodical nature may also refer to time of day: the first external refrigeration system 170 may need to be used only during daytime.
  • the periodical nature may also refer to some other periodicity: the first external refrigeration system 170 needs to be used during previously determined periods or during "on-the-fly" determined periods.
  • control unit 102 maintains a clock and receives an outdoor temperature, and time (and date or day of week) and outdoor temperature are used as parameters in determining a beginning and an end for the operation period of the first mode.
  • the operation of the second external refrigeration system 180 may then occur between these periods, according to a predetermined plan or on a "as needed" basis.
  • the second external refrigeration system 180 may be 'auxiliary' to the third external refrigeration system 182 in the sense that the third external refrigeration system 182 is the main system, and its operation may be adjusted so that the second external refrigeration system 180 gets enough use (regarding time and required cooling power) so that the heat recovery unit 130 is able to match its required heat output.
  • control unit 102 may obtain temperatures from temperature sensors placed in various places, by a tank 144, between an evaporation unit 142 and the tank 144 etc. in order to optimize the operation.
  • the control unit 102 performs the control by adjusting a pump of the evaporation unit 142, the refrigeration unit 140 and its suction pressure, pumps interacting with the interfaces 150, 152, a pump of the heat recovery unit 130, various valves, and temperature settings.
  • the first external refrigeration system 170 belongs to an air conditioning system 172 of a building 190, and the second external refrigeration system 180 augments another cooling process 184 in a building 190.
  • the air conditioning system 172 of the building 190 may be a part of HVAC (heating, ventilation and air conditioning) of the building 190.
  • the first external refrigeration system 170 needs to be operated as a part of the air conditioning system 172 only during summer months.
  • the other cooling process 184 implements a cold store 186 in a confined space in the building 190.
  • the cold store 186 may be a warehouse for refrigerated or frozen goods, for example.
  • the cold store 186 may be a part of HVAC&R (heating, ventilation, air conditioning and refrigeration) of the building 190.
  • Figure 1 only illustrates one building, 190
  • the operation of the multi-mode refrigeration system 100 may be coupled with one or more buildings 190.
  • the first external refrigeration system 170, the second external refrigeration system 180, the third external refrigeration system 182 and the heat recovery unit 130 direct their effect to one or more buildings 190.
  • the heat recovery unit 130 is configured to output + the produced heat to at least one of a heating unit 160 of a building 190, a heating unit 160 of a water supply, a defrosting unit 160 of the first external refrigeration system 170, a defrosting unit 160 of the second external refrigeration system 180, a defrosting unit 160 of the third external refrigeration system 182.
  • the refrigeration unit 140 comprises one or more evaporation units 142 and one or more refrigeration system tanks 144, and the first evaporation temperature or the second evaporation temperature optimizes the operation by optimizing operation of the one or more evaporation units 142 and the one or more refrigeration system tanks 144. Note that this may provide an advantage that the components, the evaporation unit 142, the tank 144 and the required liquid circuit, need not be duplicated, but the same components operate, alternatively, with the first external refrigeration system 170 or the second external refrigeration system 180.
  • the refrigeration unit 140 operates with liquid carbon dioxide 146 as a refrigerant.
  • the refrigeration unit 140 operates with supercritical carbon dioxide as the refrigerant, wherein the carbon dioxide is in a fluid state where it is held at or above its critical temperature and critical pressure.
  • example embodiments are not restricted to these refrigerants, but other refrigerants known in the art may be applied as well.
  • control unit 102 may be implemented as an industrial controller.
  • the control unit 102 may operate in a centralized fashion, even as a single control apparatus, or, in a distributed fashion, comprising more than one interacting and communicating control apparatuses.
  • control unit 102 may be implemented as a stand-alone computing apparatus, such as a computer or a server.
  • control unit 102 may be implemented with computer technology, such as a laptop, an industrial computer, or an unit with one or more microprocessors.
  • control unit 102 is a general-purpose off-the-shelf computing device, as opposed to a purpose-build proprietary equipment, whereby research & development costs will be lower as only the special-purpose software (and not the hardware) needs to be designed, implemented and tested.
  • server may be implemented as a general-purpose off-the-shelf computing device with an appropriate software.
  • At least a part of the required processing may be performed according to a client-server architecture, a cloud computing architecture, a peer-to-peer system, or another applicable computing architecture.
  • control unit 102 for the multi-mode refrigeration system 100 comprises one or more processors 104, and one or more memories 106 including computer program code 108.
  • the one or more memories 106 and the computer program code 108 are configured to, with the one or more processors 104, cause the control unit 102 to select 110 the operation mode and perform the above-described operations.
  • An example embodiment provides also a computer-readable medium 120 comprising the computer program code 108 for the control unit 102, which, when loaded into the control unit 102 and executed by the control unit 102, causes the control unit 102 to select 110 the operation mode and perform the described operations.
  • the term 'processor' 104 refers to a device that is capable of processing data.
  • the control unit 102 may comprise several processors 104 such as parallel processors or a multicore processor.
  • the working memory and the non-volatile memory may be implemented by a random-access memory (RAM), dynamic RAM (DRAM), static RAM (SRAM), a flash memory, a solid state disk (SSD), PROM (programmable read-only memory), a suitable semiconductor, or any other means of implementing an electrical computer memory.
  • the processor 104 and the memory 106 may be implemented by an electronic circuitry.
  • a non-exhaustive list of implementation techniques for the processor 104 and the memory 106 includes, but is not limited to: logic components, standard integrated circuits, application-specific integrated circuits (ASIC), system-on-a-chip (SoC), application-specific standard products (ASSP), microprocessors, microcontrollers, digital signal processors, special-purpose computer chips, field-programmable gate arrays (FPGA), and other suitable electronics structures.
  • the computer program code 108 may be implemented by software and/or hardware.
  • the software may be written by a suitable programming language (a high-level programming language, such as C, C++, or Java, or a low-level programming language, such as a machine language, or an assembler, for example), and the resulting executable code 108 may be stored on the memory 106 and run by the processor 104.
  • the functionality of the hardware may be designed by a suitable hardware description language (such as Verilog or VHDL), and transformed into a gate-level netlist (describing standard cells and the electrical connections between them), and after further phases the chip implementing the processor 104 memory 106 and the code 108 may be fabricated with photo masks describing the circuitry.
  • the operations of the computer program code 108 may be divided into functional modules, sub-routines, methods, classes, objects, applets, macros, etc., depending on the software design methodology and the programming language used. In modern programming environments, there are software libraries, i.e. compilations of ready-made functions, which may be utilized by the computer program code 108 for performing a wide variety of standard operations.
  • the computer program code 108 may be in source code form, object code form, executable file, or in some intermediate form.
  • the computer-readable medium 120 may comprise at least the following: any entity or device capable of carrying the computer program code 108 to the control unit 102, a record medium, a computer memory, a read-only memory, an electrical carrier signal, a telecommunications signal, and a software distribution medium. In some jurisdictions, depending on the legislation and the patent practice, the computer-readable medium 120 may not be the telecommunications signal. In an example embodiment, the computer-readable medium 120 may be a computer-readable storage medium. In an example embodiment, the computer-readable medium 120 may be a non-transitory computer-readable storage medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Air Conditioning Control Device (AREA)
EP17159173.8A 2017-03-03 2017-03-03 Système de réfrigération multi-mode Withdrawn EP3370017A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17159173.8A EP3370017A1 (fr) 2017-03-03 2017-03-03 Système de réfrigération multi-mode
CN201710274103.0A CN108534411A (zh) 2017-03-03 2017-04-25 多模式制冷系统
PCT/EP2018/055149 WO2018158414A1 (fr) 2017-03-03 2018-03-02 Système de réfrigération multimode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17159173.8A EP3370017A1 (fr) 2017-03-03 2017-03-03 Système de réfrigération multi-mode

Publications (1)

Publication Number Publication Date
EP3370017A1 true EP3370017A1 (fr) 2018-09-05

Family

ID=58314087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17159173.8A Withdrawn EP3370017A1 (fr) 2017-03-03 2017-03-03 Système de réfrigération multi-mode

Country Status (3)

Country Link
EP (1) EP3370017A1 (fr)
CN (1) CN108534411A (fr)
WO (1) WO2018158414A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363663A1 (fr) * 2009-12-28 2011-09-07 Daikin Industries, Ltd. Systeme de pompe a chaleur
EP2416092A1 (fr) * 2010-01-29 2012-02-08 Daikin Industries, Ltd. Système de pompe à chaleur
EP2479519A2 (fr) * 2011-01-24 2012-07-25 LG Electronics, Inc. Système réfrigérant
EP2937649A1 (fr) * 2012-12-20 2015-10-28 Mitsubishi Electric Corporation Dispositif de climatisation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8671697B2 (en) * 2010-12-07 2014-03-18 Parker-Hannifin Corporation Pumping system resistant to cavitation
CN103940139A (zh) * 2014-04-15 2014-07-23 珠海格力电器股份有限公司 热回收多联机及控制方法
CN205351871U (zh) * 2015-12-25 2016-06-29 珠海格力电器股份有限公司 热回收多联机外机系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363663A1 (fr) * 2009-12-28 2011-09-07 Daikin Industries, Ltd. Systeme de pompe a chaleur
EP2416092A1 (fr) * 2010-01-29 2012-02-08 Daikin Industries, Ltd. Système de pompe à chaleur
EP2479519A2 (fr) * 2011-01-24 2012-07-25 LG Electronics, Inc. Système réfrigérant
EP2937649A1 (fr) * 2012-12-20 2015-10-28 Mitsubishi Electric Corporation Dispositif de climatisation

Also Published As

Publication number Publication date
WO2018158414A1 (fr) 2018-09-07
CN108534411A (zh) 2018-09-14

Similar Documents

Publication Publication Date Title
US11175062B2 (en) Central plant control system with computation reduction based on graph theory
CN112577161A (zh) 空调能耗模型训练方法与空调系统控制方法
CN102997374B (zh) 一种空调负荷预测方法，装置及空调
US10285310B2 (en) Computer data center cooling and electricity generation using recovered heat
Xu et al. Modeling the dynamic simulation and control of a single effect LiBr–H2O absorption chiller
EP3395132B1 (fr) Système de réduction thermique pour véhicule autonome
US11351841B2 (en) Control system and method for an electronically governed engine of a refrigeration system
Pyragas et al. Coupling design for a long-term anticipating synchronization of chaos
US20230150352A1 (en) Oil Temperature Control Method, Controller, Powertrain, and Electric Vehicle
KR20250166220A (ko) 열 관리 시스템 및 그 제어 방법, 에너지 저장 시스템 및 전기 장치
CN115129133A (zh) 一种服务器液冷系统调控装置、方法、终端及存储介质
CN109084433A (zh) 空调室内机的能力输出控制方法、设备及介质
CN115133172A (zh) 液冷控制系统、方法及装置、计算机设备及存储介质
US20220043679A1 (en) Technologies for providing predictive thermal management
EP3370017A1 (fr) Système de réfrigération multi-mode
WO2019227273A1 (fr) Modèle de réseau neuronal basé sur un concept hiérarchique destiné à une prédiction d'efficacité d'utilisation de puissance de centre de données
WO2022132761A1 (fr) Systèmes et procédés permettant de chauffer des éléments informatiques dans des véhicules
CN118935811B (zh) 一种双源双效热泵机组运行控制方法及系统
CN117663290A (zh) 温度调节方法、装置、电控盒以及空调系统
JP2018004190A (ja) 空調システム
CN111197840B (zh) 组合式风柜的控制方法、装置、计算机设备和存储介质
CN114980662B (zh) 应用于干冷器的防冻系统、方法、装置及计算机程序产品
CN104129015A (zh) 一种自循环风冷模温机
Atam et al. A convex approach to energy use minimization of buildings equipped with hybrid ground-coupled heat pump systems
US12163430B2 (en) Systems and methods for a partial state condenser

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190301

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HUURRE FINLAND OY

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210916

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220127