CN108534411A - Multi-mode refrigeration system - Google Patents
Multi-mode refrigeration system Download PDFInfo
- Publication number
- CN108534411A CN108534411A CN201710274103.0A CN201710274103A CN108534411A CN 108534411 A CN108534411 A CN 108534411A CN 201710274103 A CN201710274103 A CN 201710274103A CN 108534411 A CN108534411 A CN 108534411A
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- China
- Prior art keywords
- refrigeration system
- unit
- mode
- external refrigeration
- external
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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—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
- F25B2400/06—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
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- 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)
Abstract
The invention discloses a kind of Multi-mode refrigeration systems (100).Control unit (102) selects (110) operational mode：It activates (112) first interface (150) and (C) first evaporating temperature is set for refrigeration unit (140), with the operation of the first external refrigeration system of Optimum utilization (170) to keep the first temperature requirements；Or it activates (114) second interface (152) and sets (C) second evaporating temperature for refrigeration unit (140), with the operation of the second external refrigeration system of Optimum utilization (180) to keep second temperature demand, target for the heat (+) generated with heat recovery units (130) is set, control (C) heat recovery units (130) are to generate the amount for the heat (+) for meeting target, and by control interface (154) by control signal transmission (C) to third external refrigeration system (182) to adjust its operation, make the second external refrigeration system (180) that the enough heats (+) recycled by heat recovery units (130) can be generated to meet target.
Description
Technical field
The present invention relates to a kind of Multi-mode refrigeration systems.
Background technology
IPG classes F25 discloses heating and the refrigeration system of a kind of combination.As sustainable development becomes more important, it is expected that
Research and development to the system and the further elaborate of operation.
Invention content
The present invention attempts to provide a kind of improved Multi-mode refrigeration system.
According to an aspect of the invention, there is provided a kind of Multi-mode refrigeration system as limited in claim 1.
According to another aspect of the present invention, it provides a kind of as what is limited in claims 9 is used for Multi-mode refrigeration
The control unit of system.
According to another aspect of the present invention, a kind of computer-readable Jie as limited in claim 10 is provided
Matter, the computer-readable medium include the computer program code for control unit.
The present invention can offer the advantage that：It can flexibly be used for different refrigerating functions and optimize same multi-mode
Refrigeration unit.Because the system is run in view of cooling requirement and demand for heat and with two different operational modes, can
To obtain the efficiency of optimization.
Description of the drawings
With reference to attached drawing, exemplary embodiment of the present invention is hereafter only described by way of example, wherein：
Fig. 1 shows the exemplary embodiment of Multi-mode refrigeration system.
Specific implementation mode
Following embodiment is only example.Although this specification can be related to "one" embodiment in several places, this
Not necessarily indicate that being respectively related to the identical one or more embodiments of content reference or feature is applied only for single embodiment.
The single feature of different embodiments can be with combined to provide other embodiments.Moreover, word " comprising " and "comprising" should
It is interpreted as not being limited as only being constituted but these embodiments can also wrap by feature those of is already mentioned above by the embodiment
Containing no specifically mentioned feature/structure.
As shown in Figure 1, Multi-mode refrigeration system 100 include refrigeration unit 140 for freezing and (being marked by "-") and with
Refrigeration unit 140 is connected and the heat recovery units 130 for heating and (being marked by "+").
In one exemplary embodiment, refrigeration unit 140 is run according to well-known steam compression cycle.
In one exemplary embodiment, heat recovery units 130 are run according to well-known heat pump principle.Pay attention to
It is that heat recovery units 130 may include one or more recuperation of heat reservoirs 132.In this system, refrigeration unit 140 is used
Make heat source, and recuperation of heat reservoir 132 is used as radiator.
Moreover, Multi-mode refrigeration system 100 includes three interfaces：First interface 150, in the first temperature requirements and first
The exchange of external refrigeration system 170 thermal energy (by "+- " label)；Second interface 152 is made outside second temperature demand is with second
The exchange of cooling system 180 thermal energy (by "+- " label)；With control interface 154, be used to control third external refrigeration system 182 (by
" C " is marked).
First interface 150 and second interface 152 can be implemented by the pipe and valve appropriate controlled by control unit 102.
The control interface 154 and other control interface C controlled by control unit 102 can be by wired/nothing appropriate
Line communication technology and standard/proprietary protocol (such as industrial-controlled general line) are implemented.In one exemplary embodiment, use is appropriate
Cellular telecommunication art (such as, GSM, GPRS, EGPRS, WCDMA, UMTS, 3GPP, IMT, LTE, LET-A etc.) and/or by appropriate
Non-cellular communication technology (such as, bluetooth, Bluetooth Low Energy, Wi-Fi, WLAN, Zigbee etc.) implement wireless communication.
In one exemplary embodiment, implemented using coaxial cable, twisted-pair feeder or optical fiber by the communication technology appropriate
Wire communication, such as LAN or Ethernet.In one exemplary embodiment, can utilize field bus (such as, PROFIBUS,
DANBUSS or Modbus) communication.(such as in the form of code encryption) traffic can also be transmitted in the internet
(communication traffic)。
Multi-mode refrigeration system 100 further includes control unit 102, and (110) fortune is selected to be directed to Multi-mode refrigeration system 100
Row pattern.
Multi-mode refrigeration system 100 is with two kinds of different operational mode operations.
In the first mode, control unit 102 activates (112) first interface 150 and is arranged for refrigeration unit 140
(C) the first evaporating temperature, with the operation of the first external refrigeration system of Optimum utilization 170 to keep the first temperature requirements.
In a second mode, control unit 102 activates (114) second interface 152 and is set for refrigeration unit 140
(C) the second evaporating temperature, with the operation of the second external refrigeration system of Optimum utilization 180 to keep second temperature demand, setting
For using heat recovery units 130 generate heat+target, control (C) heat recovery units 130 with generate meet the target
Heat+amount, and control signal transmission (C) is arrived by third external refrigeration system 182 by control interface 154, to adjust its fortune
Row so that the second external refrigeration system 180 can generate enough heats for being recycled by heat recovery units 130+, to meet the mesh
Mark.
Using both patterns 112,114, Multi-mode refrigeration system 100 can utilize two different entities to run：Profit
With the first mode 112 of the first external refrigeration system 170；And second external refrigeration system 180, third external refrigeration system
182 and heat recovery units 130 cooperate second mode 114.Advantage may is that：Multi-mode refrigeration system 100 can be improved
Utilization rate.This is in the second external refrigeration system 180 of utilization of Multi-mode refrigeration system 100 compared with utilization third external refrigeration system
It may be especially useful in the case of 182 operation in a manner of more efficient.
It is noted that the first evaporating temperature of selection and the second evaporating temperature so that the first evaporating temperature and the second evaporation temperature
Each in degree optimizes the operation under its pattern using refrigeration unit 140.Because of the first evaporating temperature and the second evaporation temperature
Degree is different, so obtaining the energy-optimised scheme in each operational mode 112,114.
In one exemplary embodiment, the first external refrigeration system 170 operates to periodically, and outside second
The operation auxiliary third external refrigeration system 182 of refrigeration system 180.
Periodic nature may refer to the four seasons：In colder weather, may it is only necessary to summer months use first
External refrigeration system 170.Periodic nature can also refer to the daily time：May it is only necessary on daytime using outside first
Refrigeration system 170.Periodic nature can also refer to certain other periodicity：It needs in the period of previously judging or " dynamic
The first external refrigeration system 170 is used during state " decision period.
In one exemplary embodiment, control unit 102 formulates clock and receives outdoor temperature, and (day time
Phase or what day) and outdoor temperature judge first mode run time beginning and end parameter.
Then, the second external refrigeration system can be run between these periods according to scheduled plan or based on " needs "
180。
Second external refrigeration system 180 " can assist " third external refrigeration system 182, in this sense, outside third
Portion's refrigeration system 182 is main system, and the operation of third external refrigeration system 182 can be adjusted into and make the second outside system
Cooling system 180 is fully used (about time and required cooling capacity) so that heat recovery units 130 can match its institute
The heat output needed.
In one exemplary embodiment, control unit 102 can obtain temperature to optimize operation, institute from temperature sensor
State each place that temperature sensor is placed on by case 144 between evaporation element 142 and case 144 etc..Control unit 102 passes through
Adjust pump, refrigeration unit 140 and its swabbing pressure of evaporation element 142, the pump to interact with interface 150,152, recuperation of heat
The pumping of unit 130, various valves and temperature setting implement control.
In one exemplary embodiment, the first external refrigeration system 170 belongs to the air-conditioning system 172 of building 190, and
And second external refrigeration system 180 expand building 190 in another cooling treatment process 184.The air-conditioning system of building 190
172 can be a part (heating, ventilation and air conditioning) of the HVAC of building 190.
As explained earlier, in specific weather, the first external refrigeration system 170 needs only in summer months
Part operation of the period as air-conditioning system 172.
In one exemplary embodiment, implement in the confined space of another cooling treatment process 184 in building 190
Freezer 186.Freezer 186 can be the warehouse for such as refrigerated goods or reefer cargo.Freezer 186 can be to build
Build a part of the HVAC＆R (heating, ventilation, air conditioning and refrigeration) of object 190.
Although Fig. 1 illustrate only a solitary building 190, the operation of Multi-mode refrigeration system 100 can be with one
Or more solitary buildings 190 are connected.Therefore, in one exemplary embodiment, first the 170, second outside of external refrigeration system system
Their influence is directed to one or more building by cooling system 180, third external refrigeration system 182 and heat recovery units 130
Object 190.
In one exemplary embodiment, heat recovery units 130 are configured to export+arrive building 190 by the heat of generation
Heating unit 160, the heating unit 160 at water source, the defrosting unit 160 of the first external refrigeration system 170, the second external refrigeration
At least one of the defrosting unit 160 of the defrosting unit 160 and third external refrigeration system 182 of system 180.
In one exemplary embodiment, refrigeration unit 140 includes one or more evaporation elements 142 and one or more
Refrigeration system box 144, and the first evaporating temperature or the second evaporating temperature are by optimizing 142 He of one or more evaporation elements
The operation of one or more refrigeration system box 144 runs to optimize.It is noted that this can be offered the advantage that：Each component, steaming
Bill member 142, case 144 and required hydraulic circuit need not repeat, but identical component select one selectively with first outside
Refrigeration system 170 or the second external refrigeration system 180 are run together.
In one exemplary embodiment, refrigeration unit 140 is using as the operation of the liquid carbon dioxide 146 of refrigerant.
In one exemplary embodiment, refrigeration unit 140 is run using as the supercritical carbon dioxide of refrigerant,
In, carbon dioxide is in fluid state, wherein the carbon dioxide is kept at or above its critical-temperature and critical pressure.
However, exemplary embodiment is not limited to these refrigerants, but can also apply it is as known in the art its
Its refrigerant.
In one exemplary embodiment, control unit 102 may be embodied as industrial control unit (ICU).Control unit 102 can be with
(as single control device) is operated in a centralised manner or is operated in a distributed way, in being operated with the distributed way
Described control unit 102 includes more than one interaction and communication control unit.
In one exemplary embodiment, control unit 102 may be embodied as standalone computing device, such as, computer or
Person's server.
According to required processing power, control unit 102 can be implemented with computer technology, the computer technology is such as
For notebook, industrial computer or with the unit of one or more microprocessors.
In one exemplary embodiment, differently with special dedicated equipment, control unit 102 is general ready-made meter
Calculate device, therefore merely because special-purpose software (and non-hardware) need design, implement and test just further reduced research and development at
This.Furthermore, it is possible to be the general ready-made computing device with appropriate software by server implementation.
Alternatively, or additionally, can according to client server system, cloud computer system, end-to-end system or
Other are applicable in counting system to implement required at least part handled.
In one exemplary embodiment, the control unit 102 for being used for Multi-mode refrigeration system 100 includes one or more
Processor 104 and one or more memories 106, one or more of memories 106 include computer program code 108.
One or more memories 106 and computer program code 108 are configured to utilize one or more processors 104
Cause control unit 102 to select (110) operational mode and implements above-mentioned operation.
One exemplary embodiment additionally provides a kind of computer-readable medium 120, and the computer-readable medium 120 wraps
The computer program code 108 for control unit 102 is included, when the computer program code 108 is loaded onto control unit
On 102 and when being executed by control unit 102, the computer program code 108 causes control unit 102 to select (110) fortune
Row pattern and implement the operation.
Term " processor " 104 refers to handle the device of data.According to required processing capacity, control unit
102 may include several processors 104, such as, parallel processor or multi-core processor.
Term " memory " 108 refers to being capable of (=working storage) or permanently (non-transitory during operation
Memory) store the devices of data.Can by random access memory (RAM), dynamic RAM (DRAM), it is static with
Machine memory (SRAM), flash memory, solid state disk (SSD), programmable read only memory (PROM), appropriate semiconductor implement electricity
Any other facility of sub- computer storage comes implementation memory and non-transitory memory.
Processor 104 and memory 106 can be implemented by electronic circuit.Implementation for processor 104 and memory 106
The non-exclusive property list of technology includes but is not limited to：Logical block, standard integrated circuit, application-specific IC
(ASIC), system on chip (SoC), Application Specific Standard Product (ASSP), microprocessor, microcontroller, digital signal processor, special
Computer chip, field programmable gate array (FPGA) and other appropriate electronic structures.
Computer program code 108 can be implemented by software and/or hardware.In one exemplary embodiment, software can
To write (high-level programming language (such as C, C++ either Java) or low level programming language (such as machine by properly programmed language
Language or assembler)), and the executable code 108 generated can be stored on memory 106 and by processor
104 operations.In an alternative exemplary embodiment, the function of hardware can be by appropriate hardware description language (such as,
Verilog or VHDL) it designs and is transformed into gate level netlist (electrical connection between description standard battery and normal cell) simultaneously
And after other stages, it can be manufactured by the photomask of description circuit and implement processor 104, memory 106 and code 108
Chip.
It in one exemplary embodiment, can be according to software design approach and used programming language by computer journey
The operation of sequence code 108 is divided into function module, subprogram, method, class, object, applet, macros etc..It is compiled currently
In journey environment, there are software libraries, that is, ready-made function compiling, computer program code 108 can be using the software libraries come real
Apply various standard operations.In a kind of exemplary embodiment, computer program code 108 can be source code form, object generation
Code form, executable file or some intermediate forms.
Computer-readable medium 120 can include at least components described below：Computer program code 108 can be transported to control
Any entity or device of unit 102 processed；Recording medium；Computer storage；Read-only memory；Electric carrier signal；Telecommunications
Signal；With software distribution medium.In certain administrative areas, according to law and patent practice, computer-readable medium 120 can not possibly
It is telecommunication signal.In one exemplary embodiment, computer-readable medium 120 can be computer readable storage medium.
In one exemplary embodiment, computer-readable medium 120 can be non-transitory computer-readable storage media.
It as will be readily apparent to one of skill in the art, can be real in a variety of different ways with technological progress
Apply inventive concept.The present invention and embodiment are not limited to the exemplary embodiment of foregoing description, but can be wanted in right
Change in the range of asking.
Claims (10)
1. a kind of Multi-mode refrigeration system (100), including：
For the refrigeration unit (140) of (-) of freezing；
The heat recovery units (130) for heating (+) being connected with the refrigeration unit (140)；
First interface (150) exchanges with the first external refrigeration system (170) thermal energy (+-) in the first temperature requirements；
Second interface (152) exchanges with the second external refrigeration system (180) thermal energy (+-) in second temperature demand；
Control interface (154), control (C) third external refrigeration system (182)；With
Control unit (102) selects (110) operational mode：
It activates (112) described first interface (150) and (C) first evaporating temperature is set for the refrigeration unit (140), with
The operation of first external refrigeration system (170) described in Optimum utilization, to keep first temperature requirements；Or
It activates (114) described second interface (152) and sets (C) second evaporating temperature for the refrigeration unit (140), with
The operation of second external refrigeration system (180) described in Optimum utilization, to keep the second temperature demand, setting is for utilization
The target for the heat (+) that the heat recovery units (130) generate, control (C) described heat recovery units (130) meet institute to generate
The amount of the heat (+) of target is stated, and will be outside control signal transmission (C) to the third by the control interface (154)
Refrigeration system (182), to adjust the operation of third external refrigeration system so that second external refrigeration system (180) can
The enough heats (+) recycled by the heat recovery units (130) are generated, to meet the target.
2. Multi-mode refrigeration system according to claim 1, wherein the operation of first external refrigeration system (170)
To be periodic, and the operation auxiliary third external refrigeration system (182) of second external refrigeration system (180).
3. Multi-mode refrigeration system according to any one of the preceding claims, wherein first external refrigeration system
(170) belong to the air-conditioning system (172) of building (190), and second external refrigeration system (180) expands building
(190) another cooling treatment process (184) in.
4. Multi-mode refrigeration system according to claim 3, wherein another cooling treatment process (184) is described
Implement freezer (186) in the confined space in building (190).
5. Multi-mode refrigeration system according to any one of the preceding claims, wherein first external refrigeration system
(170), second external refrigeration system (180), the third external refrigeration system (182) and the heat recovery units
(130) their influence is directed to one or more solitary buildings (190).
6. Multi-mode refrigeration system according to any one of the preceding claims, wherein heat recovery units (130) structure
It makes the heating unit (160), described of generated heat output (+) to the heating unit (160) of building (190), water source
The defrosting unit (160) of first external refrigeration system (170), the defrosting unit of second external refrigeration system (180)
(160), at least one of the defrosting unit (160) of the third external refrigeration system (182).
7. Multi-mode refrigeration system according to any one of the preceding claims, wherein the refrigeration unit (140) includes
One or more evaporation elements (142) and one or more refrigeration system box (144), and first evaporating temperature or
Second evaporating temperature is by optimizing one or more of evaporation elements (142) and one or more of refrigeration systems
The operation of case (144) optimizes the operation.
8. Multi-mode refrigeration system according to any one of the preceding claims, wherein refrigeration unit (140) profit
It is used as liquid carbon dioxide (146) operation of refrigerant.
9. for the control unit (102) of the Multi-mode refrigeration system (100) described in any one of preceding claims 1 to 8, institute
Stating control unit includes：
One or more processors (104)；With
One or more memories (106), one or more of memories include computer program code (108)；
One or more of memories (106) and the computer program code (108) are configured to using one or more
A processor (104) causes described control unit (102) selection (110) operational mode and implements the operation.
10. a kind of computer-readable medium (120) comprising be used for the calculating of control unit as claimed in claim 9 (102)
Machine program code (108), when the computer program code is loaded onto in described control unit (102) and by the control
When unit (102) executes, the computer program code causes described control unit (102) to select (110) described operational mode
And implement the operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17159173.8 | 2017-03-03 | ||
| EP17159173.8A EP3370017A1 (en) | 2017-03-03 | 2017-03-03 | Multi-mode refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108534411A true CN108534411A (en) | 2018-09-14 |
Family
ID=58314087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710274103.0A Pending CN108534411A (en) | 2017-03-03 | 2017-04-25 | Multi-mode refrigeration system |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3370017A1 (en) |
| CN (1) | CN108534411A (en) |
| WO (1) | WO2018158414A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120138272A1 (en) * | 2010-12-07 | 2012-06-07 | Parker-Hannifin Corporation | Pumping System Resistant to Cavitation |
| EP2479519A2 (en) * | 2011-01-24 | 2012-07-25 | LG Electronics, Inc. | Refrigerant system |
| CN102713460A (en) * | 2009-12-28 | 2012-10-03 | 大金工业株式会社 | Heat-pump system |
| CN102725599A (en) * | 2010-01-29 | 2012-10-10 | 大金工业株式会社 | Heat pump system |
| CN103940139A (en) * | 2014-04-15 | 2014-07-23 | 珠海格力电器股份有限公司 | Heat recovery multi-split machine and control method |
| EP2937649A1 (en) * | 2012-12-20 | 2015-10-28 | Mitsubishi Electric Corporation | Air-conditioning device |
| CN205351871U (en) * | 2015-12-25 | 2016-06-29 | 珠海格力电器股份有限公司 | How online outer quick -witted system of heat recovery |
-
2017
- 2017-03-03 EP EP17159173.8A patent/EP3370017A1/en not_active Withdrawn
- 2017-04-25 CN CN201710274103.0A patent/CN108534411A/en active Pending
-
2018
- 2018-03-02 WO PCT/EP2018/055149 patent/WO2018158414A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713460A (en) * | 2009-12-28 | 2012-10-03 | 大金工业株式会社 | Heat-pump system |
| CN102725599A (en) * | 2010-01-29 | 2012-10-10 | 大金工业株式会社 | Heat pump system |
| US20120138272A1 (en) * | 2010-12-07 | 2012-06-07 | Parker-Hannifin Corporation | Pumping System Resistant to Cavitation |
| EP2479519A2 (en) * | 2011-01-24 | 2012-07-25 | LG Electronics, Inc. | Refrigerant system |
| EP2937649A1 (en) * | 2012-12-20 | 2015-10-28 | Mitsubishi Electric Corporation | Air-conditioning device |
| CN103940139A (en) * | 2014-04-15 | 2014-07-23 | 珠海格力电器股份有限公司 | Heat recovery multi-split machine and control method |
| CN205351871U (en) * | 2015-12-25 | 2016-06-29 | 珠海格力电器股份有限公司 | How online outer quick -witted system of heat recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018158414A1 (en) | 2018-09-07 |
| EP3370017A1 (en) | 2018-09-05 |
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