CN106885388A - A kind of air-conditioning system - Google Patents
A kind of air-conditioning system Download PDFInfo
- Publication number
- CN106885388A CN106885388A CN201510950003.6A CN201510950003A CN106885388A CN 106885388 A CN106885388 A CN 106885388A CN 201510950003 A CN201510950003 A CN 201510950003A CN 106885388 A CN106885388 A CN 106885388A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- air
- pipeline
- conditioning system
- fan
- 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.)
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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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/027—Compressor control by controlling pressure
- F25B2600/0272—Compressor control by controlling pressure the suction pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of air-conditioning system, including：Outdoor unit and indoor units；Outdoor unit includes a compressor, a condenser and a reservoir；The first end of condenser connects the exhaust outlet of compressor, and the second end connects the air inlet of indoor units；The first end of reservoir connects the leakage fluid dram of indoor units, and the second end connects the compression chamber of compressor；Indoor units include one first pipeline and one second pipeline in parallel, and the first pipeline includes one first electric expansion valve, one first evaporator and a counterbalance valve of series connection, the pressure of counterbalance valve the first evaporator outlet of reduction；Second pipeline includes one second electric expansion valve and one second evaporator of series connection, the evaporating temperature of the evaporating temperature higher than the second evaporator of the first evaporator.Air-conditioning system of the invention ensure that the evaporator outlet of two different evaporating pressures is identical evaporating pressure, it is to avoid the mixing pulsation of suction side, maintain the steady of suction side, it is ensured that reliability.
Description
Technical field
It is more particularly to a kind of that there are two air-conditioning systems of evaporating temperature the present invention relates to a kind of air-conditioning system
System.
Background technology
At present, indoor remaining wet using the exclusion of wet air condensation dehumanization method, evaporator surface temperature needs low
In the dew-point temperature of room air, it is considered to which heat transfer temperature difference conveys the temperature difference with medium, as realized 16.6 DEG C
Dew-point temperature needs less than about 7 DEG C of evaporating temperature.Often in order to reach the purpose of dehumidifying, reduce as far as possible
Evaporating temperature, for compressor, pressure ratio increase enters power increase, runs uneconomical.Meanwhile, system
In order to reach dehumidifying purpose relatively low evaporating temperature, make indoor leaving air temp relatively low, human body comfort compared with
Difference.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of air-conditioning system, overcome
The difficulty of prior art, can suitably adjust two evaporating temperatures according to the change of indoor load, make it
In evaporator maintain evaporating temperature operating higher for a long time, the system of system overall operation can be improved
Hot Energy Efficiency Ratio.
According to an aspect of the present invention, there is provided a kind of air-conditioning system, including：Outdoor unit and indoor set
Group；
The outdoor unit includes a compressor, a condenser and a reservoir；The of the condenser
One end connects the exhaust outlet of the compressor, and the second end connects the air inlet of the indoor units；The storage
The first end of liquid device connects the leakage fluid dram of the indoor units, and the second end connects the compression of the compressor
Chamber；
The indoor units include one first pipeline and one second pipeline in parallel, and first pipeline includes
One first electric expansion valve, one first evaporator and the counterbalance valve connected, the counterbalance valve reduction institute
State the pressure of the first evaporator outlet；Second pipeline includes one second electric expansion valve and of series connection
Second evaporator, the evaporating temperature of the evaporating temperature higher than second evaporator of first evaporator.
Preferably, the pressure of the pressure of the leakage fluid dram of first pipeline and the leakage fluid dram of second pipeline
It is identical.
Preferably, in sensible heat load, second evaporator operation is in latent heat for first evaporator operation
Load.
Preferably, refrigerant sequentially passes through first electric expansion valve, the first steaming in first pipeline
Hair device and counterbalance valve.
Preferably, refrigerant sequentially passes through second electric expansion valve and the second steaming in second pipeline
Hair device.
Preferably, the outdoor unit also includes one first fan, and the air channel of first fan is by institute
State condenser.
Preferably, the indoor units include an indoor set, first evaporator and second evaporation
Device is co-located at the indoor set.
Preferably, the indoor units also include one second fan, and the air channel of second fan is by institute
State the first evaporator.
Preferably, the air channel of second fan first passes through first evaporator, after by described second
Evaporator.
Preferably, the indoor units include a sensible heat indoor set and a latent heat indoor set, and described first steams
Hair device is located at the sensible heat indoor set, and second evaporator is located at the latent heat indoor set.
Preferably, the indoor units also include one second fan and a three fan, second fan
Air channel by first evaporator, the air channel of the three fan is by second evaporator.
Due to having used above technology, air-conditioning system of the invention to set two evaporators by indoor,
Different evaporating temperatures are respectively provided with, dehumidifying, the purpose of cooling is reached.The leaving air temp of indoor is moderate,
Comfortableness is improved, and ensure that two evaporator outlets of different evaporating pressures are identical vapor pres- sure
Power, it is to avoid different pressure of inspiration(Pi) is pulsed in the mixing of suction side, maintains compressor air suction
Side it is steady, it is ensured that compressor reliability.
Brief description of the drawings
Technical scheme is described in detail below in conjunction with the drawings and specific embodiments, so that
Characteristic of the invention and advantage become apparent.
Fig. 1 is the connection diagram of the air-conditioning system of the first embodiment of the present invention；And
Fig. 2 is the connection diagram of the air-conditioning system of the second embodiment of the present invention.
Reference
10 outdoor units
11 compressors
12 exhaust outlets
13 condensers
14 first fans
15 reservoirs
16 compression chambers
20 indoor units
21 first electric expansion valves
22 first evaporators
23 second fans
24 counterbalance valves
25 second electric expansion valves
26 second evaporators
27 three fans
The air inlet of A indoor units
The leakage fluid dram of B indoor units
The leakage fluid dram of the pipelines of C first
The leakage fluid dram of the pipelines of D second
The air channel of the fans of E first
The air channel of the fans of F second
The air channel of G three fans
Specific embodiment
Hereinafter will embodiments of the invention be given with detailed description.Although the present invention will be specific with reference to some
Implementation method is illustrated and illustrates, but should be noted that the present invention is not merely confined to these realities
Apply mode.Conversely, the modification carried out to the present invention or equivalent, all should cover in power of the invention
In the middle of sharp claimed range.
In addition, in order to better illustrate the present invention, being given in specific embodiment below numerous
Detail.It will be understood by those skilled in the art that without these details, the present invention equally can be real
Apply.In other example, it is not described in detail for known structure and part, in order to
Highlight purport of the invention.
First embodiment
Fig. 1 is the connection diagram of the air-conditioning system of the first embodiment of the present invention.As shown in figure 1, this
A kind of air-conditioning system of invention, including：Outdoor unit 10 and indoor units 20.Wherein, outdoor unit
10 include a compressor 11, a condenser 13, one first fan 14 and a reservoir 15.Condensation
The first end of device 13 connects the exhaust outlet 12 of compressor 11, and the second end connects the air inlet of indoor units 20
Mouth A.The first end of reservoir 15 connects the leakage fluid dram B of indoor units 20, the second end connection compressor
11 compression chamber 16.The air channel E of the first fan 14 is by condenser 13.
Indoor units 20 include one first pipeline and one second pipeline in parallel, and the first pipeline includes series connection
One first electric expansion valve 21, one first evaporator 22 and a counterbalance valve 24, counterbalance valve 24 drops
The pressure of the low outlet of first evaporator 22.Refrigerant sequentially passes through the first electric expansion valve in first pipeline
21st, the first evaporator 22 and counterbalance valve 24.Second pipeline includes one second electric expansion valve of series connection
25 and one second evaporator 26, the steaming of the evaporating temperature higher than the second evaporator 26 of the first evaporator 22
Hair temperature.Refrigerant sequentially passes through the second electric expansion valve 25 and the second evaporator 26 in second pipeline.
The refrigerant flow of the first evaporator 22, second are flowed into the first pipeline of regulation of first electric expansion valve 21
The refrigerant flow of the second evaporator 26 is flowed into the second pipeline of regulation of electric expansion valve 25, to realize two
The different evaporating temperature of individual evaporator.In the present embodiment.First evaporator 22 operates mainly in sensible heat and bears
Lotus, the second evaporator 26 operates mainly in latent heat load.
In the first pipeline, the bullet that counterbalance valve 24 (Back Pressure Valve) passes through built-in spring
Power come realize action：Refrigerant is flowed into from the import of counterbalance valve 24, when the pressure of the outlet of the first evaporator 22
When power is bigger than preset pressure, the diaphragm compression spring in counterbalance valve 24, pipeline is connected, some refrigerant
Into another pipeline, so as to reduce the exit (i.e. the leakage fluid dram C of the first pipeline) of counterbalance valve 24
Pressure.In the present embodiment, back pressure valve arrangement is similar with check valve, but Opening pressure is more than check valve,
Between 0.2 to 1.6 MPas, but it is not limited.By this attachment structure, counterbalance valve 24 can have
The pressure of the effect control outlet of the first evaporator 22 so that the pressure and second of the leakage fluid dram C of the first pipeline
The pressure of the leakage fluid dram D of pipeline is identical.Flow out the two-way refrigerant mixing of the first pipeline and the second pipeline
Afterwards, the common compression chamber 16 (suction side) for entering compressor, so as to the pressure of inspiration(Pi) for avoiding different exists
The mixing pulsation of suction side, maintains the steady of suction side, it is ensured that compressor reliability
Property.
Indoor units 20 also include an indoor set and one second fan 23, and the first evaporator 22, second steams
The hair fan 23 of device 26 and second can be co-located at indoor set.The air channel F of the second fan 23 is first passed through
First evaporator 22, after by the second evaporator 26, but be not limited.The air channel of the second fan 23
F can also be merely through the first evaporator 22.
Specific embodiment of the invention is as follows：
Indoor evaporator of the present invention is divided into two parts：First evaporator 22 is (main high-temperature evaporator
Undertake sensible heat load), the second evaporator 26 is cryogenic vaporizer (mainly undertaking latent heat load).
After compressor air-discharging enters condenser 13, point two-way each enters two evaporations of different evaporating temperatures
Device, the refrigerant flow of evaporator and the wind of indoor set are entered by respective electronic expansion valve regulation
Amount, realizes that the first evaporator 22 is operated in two different evaporating temperatures from the second evaporator 26；Simultaneously
One counterbalance valve is set in evaporator (the first evaporator 22) outlet of evaporating temperature higher, by counterbalance valve
The refrigerant pressure that exports of refrigerant outlet pressure and relatively low evaporator (the second evaporator 26) approach；
After the mixing of two-way refrigerant, into the compression chamber 16 (suction side) of compressor.
System compressors of the invention can use Conventional press；The setting of counterbalance valve, can make evaporation higher
The indoor set outlet pressure reduction of pressure, close to another relatively low evaporating pressure, realizes two different steamings
The evaporator outlet for sending out pressure is identical evaporating pressure；Different pressures of inspiration(Pi) are avoided to be inhaled in compressor
The mixing pulsation of gas side, maintains the steady of suction side, it is ensured that compressor reliability.
The present invention suitably adjusts two evaporating temperatures according to the change of indoor load, makes one of evaporation
Device maintains evaporating temperature operating higher for a long time, can improve the heating energy efficiency ratio of system overall operation.
Second embodiment
Fig. 2 is the connection diagram of the air-conditioning system of the second embodiment of the present invention.As shown in Fig. 2 this
Another air-conditioning system of invention, is that the air-conditioning system includes with first embodiment identical：Outdoor unit
Group 10 and indoor units 20.Wherein, outdoor unit 10 include a compressor 11, a condenser 13,
One first fan 14 and a reservoir 15.The first end of condenser 13 connects the exhaust of compressor 11
Mouth 12, the second end connects the air inlet A of indoor units 20.The first end connection indoor units of reservoir
20 leakage fluid dram B, the second end connects the compression chamber 16 of compressor 11.The air channel E of the first fan 14
By condenser 13.
Indoor units 20 include one first pipeline and one second pipeline in parallel, and the first pipeline includes series connection
One first electric expansion valve 21, one first evaporator 22 and a counterbalance valve 24, counterbalance valve 24 drops
The pressure of the low outlet of first evaporator 22.Refrigerant sequentially passes through the first electric expansion valve in first pipeline
21st, the first evaporator 22 and counterbalance valve 24.Second pipeline includes one second electric expansion valve of series connection
25 and one second evaporator 26, the steaming of the evaporating temperature higher than the second evaporator 26 of the first evaporator 22
Hair temperature.Refrigerant sequentially passes through the second electric expansion valve 25 and the second evaporator 26 in second pipeline.
The refrigerant flow of the first evaporator 22, second are flowed into the first pipeline of regulation of first electric expansion valve 21
The refrigerant flow of the second evaporator 26 is flowed into the second pipeline of regulation of electric expansion valve 25, to realize two
The different evaporating temperature of individual evaporator.In the present embodiment.First evaporator 22 works in sensible heat load,
Second evaporator 26 works in latent heat load.
In the first pipeline, the bullet that counterbalance valve 24 (Back Pressure Valve) passes through built-in spring
Power come realize action：Refrigerant is flowed into from the import of counterbalance valve 24, when the pressure of the outlet of the first evaporator 22
When power is bigger than preset pressure, the diaphragm compression spring in counterbalance valve 24, pipeline is connected, some refrigerant
Into another pipeline, so as to reduce the exit (i.e. the leakage fluid dram C of the first pipeline) of counterbalance valve 24
Pressure.In the present embodiment, back pressure valve arrangement is similar with check valve, but Opening pressure is more than check valve,
Between 0.2 to 1.6 MPas, but it is not limited.By this attachment structure, counterbalance valve 24 can have
The pressure of the effect control outlet of the first evaporator 22 so that the pressure and second of the leakage fluid dram C of the first pipeline
The pressure of the leakage fluid dram D of pipeline is identical.Flow out the two-way refrigerant mixing of the first pipeline and the second pipeline
Afterwards, the common compression chamber 16 (suction side) for entering compressor, so as to the pressure of inspiration(Pi) for avoiding different exists
The mixing pulsation of suction side, maintains the steady of suction side, it is ensured that compressor reliability
Property.
From unlike first embodiment, in the air-conditioning system of the second embodiment of the present invention, indoor units
20 include a sensible heat indoor set, a latent heat indoor set, one second fan 23 and a three fan 27.
First evaporator 22 and the second fan 23 are located at sensible heat indoor set, and the air channel F of the second fan 23 passes through
First evaporator 22.Second evaporator 26 and three fan 27 are located at latent heat indoor set, three fan
27 air channel G is by the second evaporator 26.Allow that the air-conditioning system in second embodiment uses two
Individual independent indoor set：Sensible heat indoor set (evaporating temperature higher) and (the relatively low steaming of latent heat indoor set
Hair temperature).Sensible heat indoor set and latent heat indoor set in the present embodiment can be distributed in the same interior space
Different zones, be conducive to being carried out respectively in the case of subregion the control of humidity, humidity.
In summary, air-conditioning system of the invention sets two evaporators by indoor, is respectively provided with not
Same evaporating temperature, reaches dehumidifying, the purpose of cooling.The leaving air temp of indoor is moderate, and comfortableness is carried
Height, and ensure that two evaporator outlets of different evaporating pressures are identical evaporating pressure, it is to avoid
Different pressure of inspiration(Pi) is pulsed in the mixing of suction side, maintains the flat of suction side
Surely, it is ensured that compressor reliability.
The above is only concrete application example of the invention, do not constitute any limit to protection scope of the present invention
System.In addition to the implementation, the present invention can also have other embodiment.All use equivalents are waited
The technical scheme that effect conversion is formed, all falls within scope of the present invention.
Claims (11)
1. a kind of air-conditioning system, it is characterised in that including：Outdoor unit (10) and indoor units (20)；
The outdoor unit (10) includes a compressor (11), a condenser (13) and a liquid storage
Device (15)；The first end of the condenser (13) connects the exhaust outlet (12) of the compressor (11),
Second end connects the air inlet (A) of the indoor units (20)；The first of the reservoir (15)
The leakage fluid dram (B) of the end connection indoor units (20), the second end connects the compressor (11)
Compression chamber (16)；
The indoor units (20) include one first pipeline and one second pipeline in parallel, first pipe
Road includes one first electric expansion valve (21), one first evaporator (22) and a counterbalance valve of series connection
(24), the counterbalance valve (24) reduces the pressure of the first evaporator (22) outlet；Described
Two pipelines include one second electric expansion valve (25) and one second evaporator (26) of series connection, described the
Evaporating temperature of the evaporating temperature of one evaporator (22) higher than second evaporator (26).
2. air-conditioning system as claimed in claim 1, it is characterised in that：The discharge opeing of first pipeline
The pressure of mouth (C) is identical with the pressure of the leakage fluid dram (D) of second pipeline.
3. air-conditioning system as claimed in claim 2, it is characterised in that：First evaporator (22)
Sensible heat load is worked in, second evaporator (26) works in latent heat load.
4. air-conditioning system as claimed in claim 3, it is characterised in that：Freeze in first pipeline
Agent sequentially passes through first electric expansion valve (21), the first evaporator (22) and counterbalance valve (24).
5. air-conditioning system as claimed in claim 3, it is characterised in that：Freeze in second pipeline
Agent sequentially passes through second electric expansion valve (25) and the second evaporator (26).
6. air-conditioning system as claimed in claim 1, it is characterised in that：The outdoor unit (10)
Also include one first fan (14), the air channel (E) of first fan (14) is by the condensation
Device (13).
7. the air-conditioning system as described in any one in claim 1 to 6, it is characterised in that：It is described
Indoor units (20) include an indoor set, first evaporator (22) and second evaporator (26)
It is co-located at the indoor set.
8. air-conditioning system as claimed in claim 7, it is characterised in that：The indoor units (20)
Also include one second fan (23), the air channel (F) of second fan (23) is by described first
Evaporator (22).
9. air-conditioning system as claimed in claim 8, it is characterised in that：Second fan (23)
Air channel (F) first pass through first evaporator (22), after by second evaporator (26).
10. the air-conditioning system as described in any one in claim 1 to 6, it is characterised in that：It is described
Indoor units (20) include a sensible heat indoor set and a latent heat indoor set, first evaporator (22)
Positioned at the sensible heat indoor set, second evaporator (26) is positioned at the latent heat indoor set.
11. air-conditioning systems as claimed in claim 10, it is characterised in that：The indoor units (20)
Also include one second fan (23) and a three fan (27), the air channel of second fan (23)
(F) by first evaporator (22), the air channel (G) of the three fan (27) is passed through
Second evaporator (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950003.6A CN106885388B (en) | 2015-12-16 | 2015-12-16 | A kind of air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950003.6A CN106885388B (en) | 2015-12-16 | 2015-12-16 | A kind of air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106885388A true CN106885388A (en) | 2017-06-23 |
| CN106885388B CN106885388B (en) | 2018-07-27 |
Family
ID=59176264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510950003.6A Active CN106885388B (en) | 2015-12-16 | 2015-12-16 | A kind of air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106885388B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340961A (en) * | 2018-09-27 | 2019-02-15 | 四川长虹电器股份有限公司 | A kind of Novel intelligent air conditioner system and control method |
| CN110398043A (en) * | 2018-04-25 | 2019-11-01 | 杭州三花研究院有限公司 | Heat management system and its control method |
| CN114087745A (en) * | 2020-07-29 | 2022-02-25 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
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| JPH10339513A (en) * | 1997-06-06 | 1998-12-22 | Sanyo Electric Co Ltd | Air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110398043A (en) * | 2018-04-25 | 2019-11-01 | 杭州三花研究院有限公司 | Heat management system and its control method |
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| CN114087745A (en) * | 2020-07-29 | 2022-02-25 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
| CN114087745B (en) * | 2020-07-29 | 2023-09-26 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method, control device and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106885388B (en) | 2018-07-27 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Applicant after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Pudong New Area Jinqiao Export Processing Zone, Nanjing Road, No. 888, Shanghai Applicant before: Rili Electric Appliance Co., Ltd., Shanghai |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |