CN105444453B - Double-temperature refrigerating and heating system - Google Patents
Double-temperature refrigerating and heating system Download PDFInfo
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- CN105444453B CN105444453B CN201510963217.7A CN201510963217A CN105444453B CN 105444453 B CN105444453 B CN 105444453B CN 201510963217 A CN201510963217 A CN 201510963217A CN 105444453 B CN105444453 B CN 105444453B
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- cylinder
- compressor
- indoor heat
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 65
- 238000005057 refrigeration Methods 0.000 claims abstract description 53
- 238000001704 evaporation Methods 0.000 claims abstract description 41
- 230000008020 evaporation Effects 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000009977 dual effect Effects 0.000 claims description 50
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 238000004378 air conditioning Methods 0.000 abstract description 10
- 238000009833 condensation Methods 0.000 abstract description 9
- 230000005494 condensation Effects 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000007791 dehumidification Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 7
- 239000006200 vaporizer Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
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- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
-
- 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
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to the technical field of air conditioning equipment, and particularly discloses a dual-temperature refrigerating and heating system, wherein a first cylinder, a first four-way valve, a first-stage throttling valve, an outdoor heat exchanger, a first-stage indoor heat exchanger, a gas-liquid separator, a second-stage throttling valve and a second-stage indoor heat exchanger of a compressor are connected through pipelines to form a low-temperature evaporation loop; the second cylinder, the second four-way valve, the first-stage throttle valve, the outdoor heat exchanger, the first-stage indoor heat exchanger and the gas-liquid separator of the compressor are connected through pipelines to form a medium-temperature evaporation loop. The invention realizes the switching of the refrigeration/heating modes by reversing the two four-way valves, realizes the refrigeration with double evaporation temperatures or the heating with double condensation temperatures, effectively improves the overall energy efficiency of the system, and can be widely applied to the occasions of refrigeration, air-conditioning cold radiation plus dehumidification, double-temperature heat source heat pumps, air-conditioning heat radiation plus hot air or air-conditioning heat radiation plus domestic hot water and the like.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of dual temperature refrigeration and heating.
Background technology
As shown in figure 1, a kind of existing double temperature cold water/cold air group includes low-temperature level compressor 1 ', medium temperature level compressor
2 ', condenser 3 ', high-temperature level choke valve 4 ', medium temperature evaporator 5 ', low-temperature level choke valve 6 ', cryogenic vaporizer 7 ' and four-way commutate
Valve 13 '.Low-temperature level compressor 1 ' and medium temperature level compressor 2 ' are arranged in parallel, respectively from medium temperature evaporator 5 ' and cryogenic vaporizer 7 '
Middle air-breathing is simultaneously compressed to pressure at expulsion.In above-mentioned double temperature cold water/cold air group, four of the four-way reversing valve 13 ' of access
Interface respectively with compressor exhaust pipe 11 ', condenser air inlet pipe 12 ', cryogenic compressor air intake duct 10 ' and cryogenic vaporizer return-air
Pipe 9 ' is connected.When cooling in summer is run, medium temperature gaseous refrigerant pipe 8 ' and cryogenic compressor air intake duct 10 ' are two-stage respectively
The air intake duct of compressor, compressor exhaust pipe 11 ' are exhaust mains, medium temperature cold water are produced in medium temperature evaporator 5 ', in low temperature
Low-temperature cold water/cold wind is produced in evaporator 7 '.
As shown in Fig. 2 above-mentioned double temperature cold water/cold air group in the winter time heating operation when, four-way reversing valve 13 ' commutate,
The suction and exhaust ports of two-stage compressor then need to switch over, and 11 ' in Fig. 2 are then air suction main, and 8 ' and 10 ' be two-stage pressure respectively
The blast pipe of contracting machine.Refrigerant enters in medium temperature evaporator 5 ' and cryogenic vaporizer 7 ' after two-stage compressor compresses produces medium temperature
With high-temperature-hot-water/hot blast, wherein, produce middle warm water in medium temperature evaporator 5 ' (being now medium temperature condenser), low temperature steam
High-temperature-hot-water/hot blast is produced in hair device 7 ' (being now warm condenser).
But due to the suction and exhaust ports of two-stage compressor be all it is fixed, can not dual temperature freeze or dual temperature heating operation
Switched over during pattern.
In view of the above-mentioned problems, we need a kind of dual temperature refrigeration and heating badly, to solve existing double temperature cold water/cold air
The problem of suction and exhaust ports of two-stage compressor can not switch in dual temperature refrigeration or dual temperature heating operation mode in group.
The content of the invention
It is an object of the invention to propose a kind of dual temperature refrigeration and heating, double temperature cold water/cold air is efficiently solved
The problem of suction and exhaust ports of two-stage compressor can not switch in dual temperature refrigeration or dual temperature heating operation mode in group.
To use following technical scheme up to this purpose, the present invention：
A kind of dual temperature refrigeration and heating, including by compressor, four-way valve, choke valve, outdoor heat exchanger, gas-liquid separation
The low-temperature evaporation loop and medium temperature evaporation circuit of device and indoor heat exchanger composition, the indoor heat exchanger include changing in first order room
One of hot device and second level indoor heat exchanger, the indoor heat exchanger and outdoor heat exchanger are condenser, and another is steaming
Device is sent out, the four-way valve includes the first four-way valve and the second four-way valve；
The compressor includes the first cylinder and the second cylinder, first cylinder, the first four-way valve, first order throttling
Valve, outdoor heat exchanger, first order indoor heat exchanger, gas-liquid separator, second level choke valve and second level indoor heat exchanger pass through
Pipeline connects and composes low-temperature evaporation loop；
Second cylinder, the second four-way valve, first order choke valve, outdoor heat exchanger, first order indoor heat exchanger are gentle
Liquid/gas separator connects and composes medium temperature evaporation circuit by pipeline.
As the preferred scheme of a kind of dual temperature refrigeration and heating, first cylinder and second cylinder are respectively mounted
In the housing of a two-spool compressor.
As the preferred scheme of a kind of dual temperature refrigeration and heating, first cylinder and second cylinder difference are each
In the housing of a single-stage compressor.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the gas-liquid separator and the second level room are connected
First magnetic valve is installed on the pipeline of interior heat exchanger；
The outdoor heat exchanger is connected with the second level indoor heat exchanger by pipeline, and is provided with the pipeline
Second solenoid valve.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the first order indoor heat exchanger and the second level
Indoor heat exchanger is the double indoor heat exchanger being arranged side by side.
As the preferred scheme of a kind of dual temperature refrigeration and heating, electromagnetism is installed on the blast pipe of the compressor
Valve.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the compressor is capacity adjustable type compressor.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the gas-liquid separator is flash evaporation.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the first order choke valve uses float-ball type expansion valve
Or electric expansion valve.
As the preferred scheme of a kind of dual temperature refrigeration and heating, the second level choke valve is expanded using float-ball type
Valve, electric expansion valve or heating power expansion valve.
Beneficial effects of the present invention are：
The present invention proposes a kind of dual temperature refrigeration and heating, dual temperature refrigeration and heating using two four-way valves and
Two compresser cylinders being connected respectively with two four-way valves, two four-way valves and two compresser cylinders are connected on low temperature respectively
In evaporation circuit and medium temperature evaporation circuit, the switching of refrigerating/heating pattern is realized by the commutation of two four-way valves, realizes double steam
Temperature refrigeration or the heating of double condensation temperatures are sent out, effectively improves the overall efficiency of system, the double evaporations obtained or double condensation temperatures
It can be widely applied to freezing and refrigeration, air-conditioning cold emission+dehumidifying, dual temperature heat source heat pump, air-conditioning heat radiation+hot blast or air-conditioning heat radiation
The occasions such as+domestic hot-water.
Brief description of the drawings
Fig. 1 is the refrigerating operaton figure for the double temperature cold water/cold air group that prior art provides；
Fig. 2 is the heating operation figure for the double temperature cold water/cold air group that prior art provides；
Fig. 3 is the circulation theory figure of the dual temperature refrigeration that the embodiment of the present invention one provides and heating；
Fig. 4 is the internal structure schematic diagram for the compressor that the embodiment of the present invention one provides；
Fig. 5 is the circulation theory figure of the dual temperature refrigeration that the embodiment of the present invention two provides and heating；
Fig. 6 is the circulation theory figure of the dual temperature refrigeration that the embodiment of the present invention three provides and heating；
Fig. 7 is the circulation theory figure of the dual temperature refrigeration that the embodiment of the present invention four provides and heating；
Wherein, in Fig. 1 to Fig. 7 dotted arrow system of representatives system heating operation when refrigerant circulation trend；Solid arrow
The circulation trend of refrigerant during system of representatives controlling cold operation.
Wherein：
1’：Low-temperature level compressor；2’：Medium temperature level compressor；3’：Condenser；4’：High-temperature level choke valve；5’：Medium temperature is evaporated
Device；6’：Low-temperature level choke valve；7’：Cryogenic vaporizer；8’：Medium temperature gaseous refrigerant pipe；9’：Cryogenic vaporizer muffler；10’：
Cryogenic compressor air intake duct (high temperature compressor blast pipe)；11’：Compressor exhaust pipe (compressor air suction house steward)；12’：Condensation
Device air inlet pipe；13’：Four-way reversing valve；
1：Compressor；2：First four-way valve；3：Second four-way valve；4：Outdoor heat exchanger；5：First order choke valve；6：First
Level indoor heat exchanger；7：Flash evaporation；8：Second level choke valve；9：Second level indoor heat exchanger；10：First magnetic valve；11：Second
Magnetic valve；12：The double indoor heat exchanger of the first order；13：The double indoor heat exchanger in the second level；
1-1：First single-stage compressor；1-2：Second single-stage compressor；
a：First cylinder；b：Second cylinder；a1：Air entry；a2：Exhaust outlet；b1：Air entry；b2：Exhaust outlet.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
The technical scheme of the embodiment of the present invention will be described in further detail with reference to accompanying drawing, it is clear that described embodiment is only
It is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art exist
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment one
Fig. 3 is the circulation theory figure of the dual temperature refrigeration that the embodiment of the present invention one provides and heating.As shown in figure 3, this
Embodiment propose the first dual temperature refrigeration and heating include by compressor 1, four-way valve, choke valve, outdoor heat exchanger 4,
The low-temperature evaporation loop and medium temperature evaporation circuit of gas-liquid separator and indoor heat exchanger composition.Indoor heat exchanger includes first order room
One of them is condenser for interior heat exchanger 6 and second level indoor heat exchanger 9, indoor heat exchanger and outdoor heat exchanger 4, and another is
Evaporator.Four-way valve includes the first four-way valve 2 and the second four-way valve 3.Compressor 1 includes the first cylinder and the second cylinder, and first
Cylinder, the first four-way valve 2, first order choke valve 5, outdoor heat exchanger 4, first order indoor heat exchanger 6, gas-liquid separator, second
Level choke valve 8 and second level indoor heat exchanger 9 connect and compose low-temperature evaporation loop by pipeline；Second cylinder, the second four-way valve
3rd, first order choke valve 5, outdoor heat exchanger 4, first order indoor heat exchanger 6 and gas-liquid separator connect and compose medium temperature by pipeline
Evaporation circuit.Wherein, gas-liquid separator is flash evaporation 7.
The dual temperature refrigeration and heating of the embodiment use twin-tub parallel connection compressor, alternatively referred to as two-spool compressor.
Its internal structure is as shown in figure 4, the compressor 1 includes the first cylinder a and the second cylinder b, the first cylinder a and the second cylinder b tools
There is each independent compression chamber, the first cylinder a and the second cylinder b are installed in the housing of two-spool compressor；First cylinder a
Exhaust is expelled directly out, and the second cylinder b delivery temperatures are relatively low, can cool down the motor on the top of compressor 1, has compressor 1 good
Runnability, and the housing and motor of two cylinder shared compressors 1, the problems such as no oil return inequality.
The air entry a1 being connected with its compression chamber is provided with first cylinder a and is set on exhaust outlet a2, the second cylinder b
There are the air entry b1 and exhaust outlet b2 being connected with its compression chamber.Two cylinders of compressor 1 of the present invention are respectively provided with independent suction
Gas port and exhaust outlet, the work that two cylinders can be separate.In actual motion, the first cylinder a works independently in low temperature
Evaporation is (during refrigeration) or high temperature condensation is (during heating) in loop, the second cylinder b work independently medium temperature evaporation (during refrigeration) or in
Temperature condensation is (during heating) in loop.
Above-mentioned compressor 1 elects capacity adjustable type compressor as, such as using variable speed, the piston of unloading regulative mode
Formula, vortex, screw, centrifugal compressor etc., it can freely adjust the size of medium temperature cold and low temperature cold.When closing the
Two-step throttle valve 8 and stop the first cylinder a when, can individually produce medium temperature cold water；First cylinder a isolated operations or the first cylinder a
Being run simultaneously with the second cylinder b can individually produce low-temperature cold water or low-temperature cold wind.In addition, by controlling two cylinder sliding blocks and peace
Magnetic valve on the blast pipe of compressor 1 (i.e. the first cylinder a blast pipe and the second cylinder b blast pipe), can make high pressure
Cylinder idle running is not compressed, and realizes the condensation or evaporation of single temperature.
Specifically, the present embodiment dual temperature refrigeration and heating by compressor 1, the first four-way valve 2, the second four-way valve 3,
Outdoor heat exchanger 4, first order choke valve 5, second level choke valve 8, first order indoor heat exchanger 6, the and of second level indoor heat exchanger 9
Flash evaporation 7 forms.In refrigerating operaton, compressor 1 is vented to be mixed into after the first four-way valve 2, the second four-way valve 3 respectively and entered the room
External heat exchanger 4 (condenser), then at first order indoor heat exchanger 6 (evaporator) after first order choke valve 5 carries out one-level throttling
Middle progress one-level evaporation obtains medium temperature cold water or cold wind.Refrigerant after evaporation carries out gas-liquid separation, gaseous parts through flash evaporation 7
Compressor the second cylinder b is returned to, liquid part is after the second throttle of second level choke valve 8 in the (evaporation of second level indoor heat exchanger 9
Device) in evaporation obtain low-temperature cold water or cold wind, eventually pass back to the cylinder a of compressor 1 first and complete circulation.In heating operation, the
Two cylinder b exhausts enter flash evaporation 7 through the second four-way valve 3, and the first cylinder a exhausts enter in the room of the second level through the first four-way valve 2
Heat exchanger 9 (condenser), high-temperature-hot-water or hot blast are produced, then enter the gas of flash evaporation 7 and second after the throttling of second level choke valve 8
Cylinder b exhaust mixing, refrigerant, which enters in first order indoor heat exchanger 6 (condenser), after mixing produces middle warm water or hot blast,
Most returned to afterwards after outdoor heat exchanger 4 (evaporator) in compressor 1, complete a circulation.
In the present embodiment, first order choke valve 5 uses float-ball type expansion valve or electric expansion valve.Second level choke valve 8
Using float-ball type expansion valve, electric expansion valve or heating power expansion valve.Pass through float-ball type expansion valve and/or electronic expansion valve controls
The liquid level of one-level evaporator.First order indoor heat exchanger 6 and second level indoor heat exchanger 9 can be diversified forms, can obtain respectively
Medium temperature cold water/cold wind, low-temperature cold water/cold wind or middle warm water/hot blast, high-temperature-hot-water/hot blast are obtained, with applied to cold including freezing
Hide, air-conditioning cold emission+dehumidifying, dual temperature heat source heat pump, the different fields such as air-conditioning heat radiation+hot blast or air-conditioning heat radiation+domestic hot-water
Close.
The dual temperature refrigeration and heating of the present embodiment use two four-way valves and be connected respectively with two four-way valves two
Individual compresser cylinder, two four-way valves and two compresser cylinders are connected on low-temperature evaporation loop and medium temperature evaporation circuit respectively
In, the switching of refrigerating/heating pattern is realized by the commutation of two four-way valves, realizes double evaporating temperature refrigeration or double condensation temperatures
Heating, effectively improve the overall efficiency of system.
Embodiment two
The present embodiment proposes second of dual temperature refrigeration and heating, the dual temperature refrigeration of the embodiment and the knot of heating
Structure and the system architecture described in embodiment one are essentially identical, and difference part is：
As shown in figure 5, the dual temperature refrigeration and heating of the present embodiment add the first magnetic valve 10 and second solenoid valve
11, specifically, the first magnetic valve 10 is arranged on the pipeline of connection flash evaporation 7 and second level indoor heat exchanger 9, outdoor heat exchanger
4 are connected with second level indoor heat exchanger 9 by pipeline, and second solenoid valve 11 is provided with pipeline.Increase by the first magnetic valve
10 and the purpose of second solenoid valve 11 be two-way exhaust is not entered in flash evaporation 7 and is mixed in heating operation.First cylinder a is arranged
Gas enters outdoor through the first four-way valve 2, second level indoor heat exchanger 9 (condenser), second level choke valve 8 and second solenoid valve 11
Heat exchanger 4 (evaporator)；Second cylinder b is vented through the second four-way valve 3, flash evaporation 7, first order indoor heat exchanger 6 (condenser)
Enter outdoor heat exchanger 4 (evaporator) with first order choke valve 5.
Two-way exhaust enters flash evaporation 7 and mixes caused heat loss when this embodiment can reduce heating operation, can be with
Obtain the system energy efficiency higher than embodiment one.
Embodiment three
The present embodiment proposes the third dual temperature refrigeration and heating, the dual temperature refrigeration of the embodiment and the knot of heating
Structure and the system architecture described in embodiment one are essentially identical, and difference part is：
As shown in fig. 6, the system unit of the embodiment and circulation with essentially identical described in embodiment one, will simply be implemented
First order indoor heat exchanger 6 and second level indoor heat exchanger 9 in example one are substituted for the double interior of the first order being arranged side by side and changed
The double indoor heat exchanger 13 of hot device 12 and the second level.
Specifically, refrigeration when, the double indoor heat exchanger 12 of the first order (medium temperature row evaporator) is located at windward side, will blow into
Row once cools, then carries out reducing temperature twice by the double indoor heat exchanger 13 in the second level (low temperature row evaporator), can obtain phase
There is higher system energy efficiency than the cold water or cold wind of one-level evaporation lower temperature, and compared to the single system of single-stage.During heating, the
The double indoor heat exchanger 12 of one-level (medium temperature row condenser) is located at windward side, and air-supply is once heated up, then by the second level
Double indoor heat exchanger 13 (high temperature row condenser) carries out secondary temperature elevation, can obtain the hot water compared to one-level condensation higher temperature
Or hot blast, and there is higher system energy efficiency compared to the single system of single-stage.
Example IV
The present embodiment proposes the 4th kind of dual temperature refrigeration and heating, the dual temperature refrigeration of the embodiment and the knot of heating
Structure and the system architecture described in embodiment one are essentially identical, and difference part is：
As shown in fig. 7, the compressor 1 of the present embodiment uses double-compressor parallel form, the first single stage compress is utilized respectively
Two single-stage compressors of machine 1-1 and the second single-stage compressor 1-2 substitute the two of twin-tub parallel connection compressor compression cylinders, also
It is to say, the first cylinder of embodiment one and the second cylinder is respectively arranged in the housing of a single-stage compressor respectively, form two
Platform single-stage compressor, it can be achieved and the essentially identical technique effect of embodiment one.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of dual temperature refrigeration and heating, including by compressor (1), four-way valve, choke valve, outdoor heat exchanger (4), gas-liquid
The low-temperature evaporation loop and medium temperature evaporation circuit, the indoor heat exchanger of separator and indoor heat exchanger composition include first order room
Interior heat exchanger (6) and one of second level indoor heat exchanger (9), the indoor heat exchanger and outdoor heat exchanger are condenser,
Another is evaporator, it is characterised in that the four-way valve includes the first four-way valve (2) and the second four-way valve (3)；
The compressor includes the first cylinder and the second cylinder, first cylinder, the first four-way valve (2), first order choke valve
(5), in outdoor heat exchanger (4), first order indoor heat exchanger (6), gas-liquid separator, second level choke valve (8) and second level room
Heat exchanger (9) connects and composes low-temperature evaporation loop by pipeline；
Second cylinder, the second four-way valve (3), first order choke valve (5), outdoor heat exchanger (4), first order indoor heat exchanger
(6) and gas-liquid separator connects and composes medium temperature evaporation circuit by pipeline.
2. dual temperature refrigeration according to claim 1 and heating, it is characterised in that first cylinder and described second
Cylinder is installed in the housing of a two-spool compressor.
3. dual temperature refrigeration according to claim 1 and heating, it is characterised in that first cylinder and described second
Cylinder is respectively arranged in the housing of a single-stage compressor respectively.
4. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that connect the gas-liquid
Separator on the pipeline of the second level indoor heat exchanger (9) with being provided with the first magnetic valve (10)；
The outdoor heat exchanger (4) is connected with the second level indoor heat exchanger (9) by pipeline, and is installed on the pipeline
There is second solenoid valve (11).
5. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the first order room
Interior heat exchanger (6) and the second level indoor heat exchanger (9) are the double indoor heat exchanger being arranged side by side.
6. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the compressor (1)
Blast pipe on magnetic valve is installed.
7. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the compressor (1)
For capacity adjustable type compressor.
8. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the gas-liquid separation
Device is flash evaporation (7).
9. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the first order section
Stream valve (5) uses float-ball type expansion valve or electric expansion valve.
10. dual temperature refrigeration and heating according to any one of claims 1 to 3, it is characterised in that the second level section
Stream valve (8) uses float-ball type expansion valve, electric expansion valve or heating power expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963217.7A CN105444453B (en) | 2015-12-18 | 2015-12-18 | Double-temperature refrigerating and heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963217.7A CN105444453B (en) | 2015-12-18 | 2015-12-18 | Double-temperature refrigerating and heating system |
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| Publication Number | Publication Date |
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| CN105444453A CN105444453A (en) | 2016-03-30 |
| CN105444453B true CN105444453B (en) | 2018-01-23 |
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| CN201510963217.7A Active CN105444453B (en) | 2015-12-18 | 2015-12-18 | Double-temperature refrigerating and heating system |
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| CN110469506A (en) * | 2019-08-27 | 2019-11-19 | 珠海凌达压缩机有限公司 | A kind of double sucking double-row compressor and air-conditioning system and air conditioner using it |
| CN110578985B (en) * | 2019-09-20 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Control method of air conditioner and air conditioner |
| CN110986200B (en) * | 2019-12-02 | 2020-12-04 | 珠海格力电器股份有限公司 | Fresh air dehumidification system and air conditioner |
| CN110920647A (en) * | 2019-12-23 | 2020-03-27 | 甘肃一德新能源设备有限公司 | Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit and use method thereof |
| CN113834144B (en) * | 2020-06-24 | 2023-05-05 | 上海海立电器有限公司 | Air conditioning system |
| CN114046612B (en) * | 2021-11-02 | 2023-05-26 | 南京天加环境科技有限公司 | Air conditioner/floor heating/floor cooling multi-system with double evaporating temperatures |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100538208C (en) * | 2008-01-11 | 2009-09-09 | 清华大学 | A kind of double-temperature refrigerator water/cold wind unit |
| JP2009210248A (en) * | 2008-02-06 | 2009-09-17 | Daikin Ind Ltd | Refrigeration device |
| JP4569708B2 (en) * | 2008-12-05 | 2010-10-27 | ダイキン工業株式会社 | Refrigeration equipment |
| JP2011214779A (en) * | 2010-03-31 | 2011-10-27 | Daikin Industries Ltd | Refrigerating device |
| WO2012128229A1 (en) * | 2011-03-18 | 2012-09-27 | 東芝キヤリア株式会社 | Binary refrigeration cycle device |
| CN103502749B (en) * | 2011-04-28 | 2015-12-09 | 松下电器产业株式会社 | Refrigerating plant |
| CN103557624A (en) * | 2013-10-11 | 2014-02-05 | 广东美芝制冷设备有限公司 | Refrigeration cycling device |
| CN203518314U (en) * | 2013-10-11 | 2014-04-02 | 无锡同方人工环境有限公司 | Energy environment unit special for passive house capable of providing domestic hot water and fresh air |
| JP2015127612A (en) * | 2013-12-27 | 2015-07-09 | 東芝キヤリア株式会社 | Hot water supply device |
| CN104864627B (en) * | 2014-02-20 | 2017-06-06 | 陈则韶 | A kind of pair of heating refrigeration hot water dehumidification system |
| CN104534722B (en) * | 2014-12-08 | 2017-10-20 | 刘雄 | Operation of air conditioning systems |
| CN104848589B (en) * | 2015-04-24 | 2017-03-15 | 河南佰衡节能科技股份有限公司 | A kind of interchangeable Special Agriculture Product heat pump drying and cold storage plant |
| CN205373127U (en) * | 2015-12-18 | 2016-07-06 | 珠海格力电器股份有限公司 | Double-temperature refrigerating and heating system |
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