CN106225275A - A kind of air-conditioner refrigerating system and control method thereof - Google Patents
A kind of air-conditioner refrigerating system and control method thereof Download PDFInfo
- Publication number
- CN106225275A CN106225275A CN201610830253.0A CN201610830253A CN106225275A CN 106225275 A CN106225275 A CN 106225275A CN 201610830253 A CN201610830253 A CN 201610830253A CN 106225275 A CN106225275 A CN 106225275A
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- China
- Prior art keywords
- compressor
- temperature value
- air
- conditioner refrigerating
- adjustable valve
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000006200 vaporizer Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- F25B1/00—Compression machines, plants or systems with non-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
- 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
- F25B49/022—Compressor control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner refrigerating system and control method thereof.Air-conditioner refrigerating system includes refrigerating circuit, compressor, condenser and vaporizer it has been sequentially connected in series in described refrigerating circuit, also including the heat exchanger for cooling down described compressor, described heat exchanger includes that heat exchanging pipe, described heat exchanging pipe are in parallel with described vaporizer.Refrigerant evaporation heat absorption in the air-conditioner refrigerating system heat exchanging pipe that the embodiment of the present invention provides, makes the temperature of compressor casing decline, it is ensured that compressor still can be properly functioning in the case of high-temperature high-load.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner refrigerating system and control method thereof.
Background technology
Owing to geographical position, weather conditions, greenhouse effect, EI Nino etc. affect, global numerous local temperature are the most scorching
Heat, and temperature is far above general mark 35 DEG C, and such as Middle East, the temperature in summer can reach 55 DEG C, and extreme weather is asked
The lower outdoor temperature of topic is up to 60 DEG C～70 DEG C, and in this case, user is the most urgent for the demand of refrigeration.But due to room
Outer high temperature, air conditioning system operating load will be very big, and the impact for compressor is especially apparent, in the case of a high temperature, compressor
Performance will decline, and even can protect shutdown due to compressor casing heating, it is impossible to properly functioning.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is that in solution prior art, under high-temperature high-load environment, compressor heating cannot
The problem of normal work.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of air-conditioner refrigerating system, including refrigerating circuit, described
It is sequentially connected in series compressor, condenser and vaporizer in refrigerating circuit, also includes the heat exchanger for cooling down described compressor,
Described heat exchanger includes that heat exchanging pipe, described heat exchanging pipe are in parallel with described vaporizer.
According to the present invention, the arrival end of described heat exchanging pipe is in series with first-class adjustable valve, the entrance of described vaporizer
End is in series with second adjustable valve.
According to the present invention, described first-class adjustable valve and second adjustable valve are expansion valve.
According to the present invention, described heat exchanger is annular, is coated on the outside of described compressor.
According to the present invention, described heat exchanger is provided with radiating fin away from the side of described compressor.
According to the present invention, described heat exchanger includes that heat conducting element, described heat exchanging pipe are arranged in described heat conducting element.
According to the present invention, described heat conducting element uses metallic aluminium to make.
According to the present invention, the exit of described condenser is provided with throttle capillary tube, and described throttle capillary tube is divided by liquid
Orchestration is connected with described vaporizer and described heat exchanging pipe respectively.
According to the present invention, described heat exchanging pipe is copper pipe.
Present invention also offers the control method of a kind of above-mentioned air-conditioner refrigerating system, according to characterizing compressor operating temperature
Spend the difference of high temperature value, control the aperture of described first-class adjustable valve.
According to the present invention, the temperature value characterizing compressor operating temperature too high is outdoor environment temperature value, works as outdoor environment
When temperature value reaches the first set temperature value, open first-class adjustable valve, and control according to the size of outdoor environment temperature value
Described first-class adjustable valve is opened to corresponding aperture.
According to the present invention, the temperature value characterizing compressor operating temperature too high is compressor exhaust temperature value, works as compressor
When outlet air temperature reaches the first set temperature value, open first-class adjustable valve, and big according to compressor exhaust temperature value
The described first-class adjustable valve of little control is opened to corresponding aperture.
According to the present invention, the temperature value characterizing compressor operating temperature too high is compressor casing temperature value, works as compressor
When center housing temperature value reaches the first set temperature value, open first-class adjustable valve, and big according to compressor casing temperature value
The described first-class adjustable valve of little control is opened to corresponding aperture.
(3) beneficial effect
The technique scheme of the present invention compared with prior art has the advantage that the air-conditioning that the embodiment of the present invention provides
Device refrigeration system is provided with the heat exchanger for cooling down compressor, and the heat exchanging pipe in heat exchanger is in parallel with vaporizer, when
During the work of lid refrigeration system, compressor is discharged high temperature and high pressure gas coolant and is entered condenser condensation, obtains Low temperature low pressure liquid cold
Matchmaker, liquid coolant is divided into two-way, and a road is transported to vaporizer, and another road is transported to heat exchanging pipe, and the coolant in heat exchanging pipe steams
Send out heat absorption, make the temperature of compressor casing decline, it is ensured that compressor still can normally be transported in the case of high-temperature high-load
OK.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-conditioner refrigerating system that the embodiment of the present invention provides；
Fig. 2 is the compressor combinative structure schematic diagram with heat exchanger of embodiment of the present invention offer；
Fig. 3 is the structural representation of the heat exchanger that the embodiment of the present invention provides.
In figure: 1: compressor；2: condenser；3: vaporizer；4: heat exchanger；41: heat exchanging pipe；42: heat conducting element；43:
Fin；5: first-class adjustable valve；6: second adjustable valve；7: throttle capillary tube.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the air-conditioner refrigerating system that the embodiment of the present invention provides, including refrigerating circuit, refrigerating circuit depends on
Secondary being in series with compressor 1, condenser 2 and vaporizer 3, also include the heat exchanger 4 for cooling down compressor 1, heat exchanger 4 includes
Heat exchanging pipe 41, heat exchanging pipe 41 is in parallel with vaporizer 3.Preferably, the heat exchanging pipe 41 in the present embodiment is heat conductivity
Higher copper pipe.The air-conditioner refrigerating system that the embodiment of the present invention provides is provided with the heat exchanger 4 for cooling down compressor 1, and
Heat exchanging pipe 41 in heat exchanger 4 is in parallel with vaporizer 3, and when lid refrigeration system works, High Temperature High Pressure gas discharged by compressor 1
Body coolant enters condenser 2 and condenses, and obtains Low temperature low pressure liquid coolant, and liquid coolant is divided into two-way, and a road is transported to vaporizer
3, another road is transported to heat exchanging pipe 41, the refrigerant evaporation heat absorption in heat exchanging pipe 41, makes the temperature of compressor 1 cylinder body decline,
Ensure that compressor 1 still can be properly functioning in the case of high-temperature high-load.
Further, in the present embodiment, the arrival end of heat exchanging pipe 41 is in series with first-class adjustable valve 5, vaporizer 3
Arrival end is in series with second adjustable valve 6.Preferably, the first-class adjustable valve 5 in the present embodiment and second flow regulation
Valve 6 is expansion valve.Arrival end at heat exchanging pipe 41 arranges first-class adjustable valve 5 can be to entering heat exchanger 4
Cold medium flux in heat exchanging pipe 41 is controlled, and opens the need of the degree of superheat of cooling and compressor 1 according to compressor 1
Control the aperture of first-class adjustable valve 5, thus realize the reed time controll for compressor 1 cooling, it is to avoid persistently to compressor 1
Cooling, the shunting of heat exchanging pipe 41 can reduce the cooling effect of vaporizer 3 in refrigeration system, it is ensured that compressor 1 is at positive room temperature
Save energy consumption while working under degree scope as far as possible.
Further, as in figure 2 it is shown, the heat exchanger 4 in the present embodiment is annular, it is coated on the outside of compressor 1.This reality
Executing the outside being coated on compressor 1 in example, directly contact with the outer wall of cylinder block of compressor 1, heat transfer effect is preferable.
Preferably, as it is shown on figure 3, in the present embodiment heat exchanger 4 be additionally provided with radiating fin 43 away from the side of compressor 1.
The radiating fin 43 arranged is conducive to heat radiation, improves the heat transfer effect of heat exchanger 4.
Further, the heat exchanger 4 in the present embodiment includes that heat conducting element 42, heat exchanging pipe 41 are arranged in heat conducting element 42
In.Preferably, the heat conducting element 42 in the present embodiment uses metallic aluminium to make.Heat exchanging pipe 41 is arranged in heat conducting element 42
In, heat conducting element 42 uses the material that the heat conductivity such as metallic aluminium, copper is bigger to make, and heat conducting element 42 increases heat exchanging pipe 41
With the heat exchange area of compressor 1 cylinder body, compressor 1 cylinder body entirety good cooling results, uniform temperature fields, beneficially compressor 1
Properly functioning.
Further, in the present embodiment, the exit of condenser 2 is provided with throttle capillary tube 7, and throttle capillary tube 7 passes through liquid
Allotter is connected with vaporizer 3 and heat exchanging pipe 41 respectively.Throttle capillary tube 7 is for the cold interior fall to condenser 2 exit
Pressure drop temperature, the coolant after blood pressure lowering cooling is again in liquid distributor is assigned to vaporizer 3 or heat exchanging pipe 41, and safety is relatively
Good.
The embodiment of the present invention additionally provides the control method of a kind of above-mentioned air-conditioner refrigerating system, according to characterizing compressor
The difference of the temperature value that 1 operating temperature is too high, controls the aperture of first-class adjustable valve 5.
Specifically, the condition controlling first-class adjustable valve 5 aperture in the present embodiment can be multiple different types of table
Levy the temperature value that compressor 1 operating temperature is too high.Such as, the first situation, as first-class adjustable valve 5 aperture control condition
Temperature value can be outdoor environment temperature value, when outdoor environment temperature value reaches the first set temperature value, open first-class
Adjustable valve 5, and control first-class adjustable valve 5 according to the size of outdoor environment temperature value and open to corresponding aperture, i.e. when
When outdoor environment temperature is too high, opens first-class adjustable valve 5, control the cooling for compressor 1 according to the height of temperature
Degree；The second situation, the temperature value as first-class adjustable valve 5 aperture control condition can be compressor 1 delivery temperature
Value, when compressor 1 outlet air temperature reaches the first set temperature value, opens first-class adjustable valve 5, and according to compressor 1
The size of outlet air temperature controls first-class adjustable valve 5 and opens to corresponding aperture, i.e. when compressor 1 excessive discharge temperature
Time, illustrate that the service behaviour of compressor 1 has declined, need compressor 1 is cooled down, it is right to control according to the height of temperature
Cooling degree in compressor 1；The third situation, the temperature value as first-class adjustable valve 5 aperture control condition can be
Compressor 1 center housing temperature value, when compressor 1 center housing temperature value reaches the first set temperature value, opens first-class adjustable valve
5, and open to corresponding aperture according to the size first-class adjustable valve 5 of control of compressor 1 center housing temperature value, i.e. work as compressor
When 1 center housing temperature is too high, needs compressor 1 is cooled down, control the cooling journey for compressor 1 according to the height of temperature
Degree.For controlling the aperture of first-class adjustable valve 5 namely controlling the control of the cooling degree for compressor 1 in the present embodiment
Condition can be that the difference according to air conditioning system is chosen above-mentioned any one and be may indicate that too high several of compressor 1 operating temperature
Plant temperature value, it is also possible to be to take the multiple combination that can characterize the too high temperature value of compressor 1 operating temperature, time specifically used
Using above-mentioned three kinds of temperature values all as control condition, but the control hierarchy of three kinds of temperature values can be set, preferentially select compression
Machine 1 center housing temperature value is taken second place, finally using outdoor environment temperature as control strip as control condition, compressor 1 outlet air temperature
Part, Comprehensive Control ensures that compressor 1 remains good working order.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (13)
1. an air-conditioner refrigerating system, including refrigerating circuit, described refrigerating circuit has been sequentially connected in series compressor, condenser with
And vaporizer, it is characterised in that: also including the heat exchanger for cooling down described compressor, described heat exchanger includes heat exchanging pipe,
Described heat exchanging pipe is in parallel with described vaporizer.
Air-conditioner refrigerating system the most according to claim 1, it is characterised in that: the arrival end of described heat exchanging pipe is in series with
First-class adjustable valve, the arrival end of described vaporizer is in series with second adjustable valve.
Air-conditioner refrigerating system the most according to claim 2, it is characterised in that: described first-class adjustable valve and second
Adjustable valve is expansion valve.
Air-conditioner refrigerating system the most according to claim 1 and 2, it is characterised in that: described heat exchanger is annular, is coated on
The outside of described compressor.
Air-conditioner refrigerating system the most according to claim 3, it is characterised in that: described heat exchanger is away from described compressor
Side is provided with radiating fin.
Air-conditioner refrigerating system the most according to claim 3, it is characterised in that: described heat exchanger includes heat conducting element, institute
State heat exchanging pipe to be arranged in described heat conducting element.
Air-conditioner refrigerating system the most according to claim 6, it is characterised in that: described heat conducting element uses metal aluminum
Become.
Air-conditioner refrigerating system the most according to claim 1, it is characterised in that: the exit of described condenser is provided with throttling
Capillary tube, described throttle capillary tube is connected with described vaporizer and described heat exchanging pipe respectively by liquid distributor.
Air-conditioner refrigerating system the most according to claim 1, it is characterised in that: described heat exchanging pipe is copper pipe.
10. the control method of an air-conditioner refrigerating system as claimed in claim 2, it is characterised in that: according to characterizing compression
The difference of the temperature value that machine operating temperature is too high, controls the aperture of described first-class adjustable valve.
The control method of 11. air-conditioner refrigerating systems according to claim 10, it is characterised in that: characterize compressor operating
The too high temperature value of temperature is outdoor environment temperature value, when outdoor environment temperature value reaches the first set temperature value, opens
One flow control valve, and open to opening accordingly according to the size described first-class adjustable valve of control of outdoor environment temperature value
Degree.
The control method of 12. air-conditioner refrigerating systems according to claim 10, it is characterised in that: characterize compressor operating
The too high temperature value of temperature is compressor exhaust temperature value, when compressor exhaust temperature value reaches the first set temperature value, beats
Open first-class adjustable valve, and open to accordingly according to the size described first-class adjustable valve of control of compressor exhaust temperature value
Aperture.
The control method of 13. air-conditioner refrigerating systems according to claim 10, it is characterised in that: characterize compressor operating
The too high temperature value of temperature is compressor casing temperature value, when compressor casing temperature value reaches the first set temperature value, beats
Open first-class adjustable valve, and open to accordingly according to the size described first-class adjustable valve of control of compressor casing temperature value
Aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830253.0A CN106225275A (en) | 2016-09-18 | 2016-09-18 | A kind of air-conditioner refrigerating system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830253.0A CN106225275A (en) | 2016-09-18 | 2016-09-18 | A kind of air-conditioner refrigerating system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106225275A true CN106225275A (en) | 2016-12-14 |
Family
ID=58075696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610830253.0A Pending CN106225275A (en) | 2016-09-18 | 2016-09-18 | A kind of air-conditioner refrigerating system and control method thereof |
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| Country | Link |
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| CN (1) | CN106225275A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289660A (en) * | 2017-06-30 | 2017-10-24 | 美的集团武汉制冷设备有限公司 | Air-conditioning system |
| CN109162913A (en) * | 2018-10-23 | 2019-01-08 | 珠海凌达压缩机有限公司 | Compressor test substitution system and control method |
| CN111023409A (en) * | 2019-11-25 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | High-temperature-prevention control method and system, storage medium and air conditioner |
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| JPH08159569A (en) * | 1994-11-30 | 1996-06-21 | Sanyo Electric Co Ltd | Freezer |
| JP4244038B2 (en) * | 2005-01-11 | 2009-03-25 | 三菱電機株式会社 | Heat pump water heater |
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| CN202835899U (en) * | 2012-08-24 | 2013-03-27 | 广东美的暖通设备有限公司 | Air conditioning system |
| CN104676856A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN105508254A (en) * | 2016-01-04 | 2016-04-20 | 广东美芝制冷设备有限公司 | Compressor component and refrigerating cycle device provided with same |
| CN206055991U (en) * | 2016-09-18 | 2017-03-29 | 广东美的制冷设备有限公司 | A kind of air-conditioner refrigerating system |
-
2016
- 2016-09-18 CN CN201610830253.0A patent/CN106225275A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159569A (en) * | 1994-11-30 | 1996-06-21 | Sanyo Electric Co Ltd | Freezer |
| JP4244038B2 (en) * | 2005-01-11 | 2009-03-25 | 三菱電機株式会社 | Heat pump water heater |
| CN201488398U (en) * | 2009-08-31 | 2010-05-26 | 宗占国 | Air source heat pump unit with electric auxiliary heating device |
| CN202835899U (en) * | 2012-08-24 | 2013-03-27 | 广东美的暖通设备有限公司 | Air conditioning system |
| CN104676856A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN105508254A (en) * | 2016-01-04 | 2016-04-20 | 广东美芝制冷设备有限公司 | Compressor component and refrigerating cycle device provided with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289660A (en) * | 2017-06-30 | 2017-10-24 | 美的集团武汉制冷设备有限公司 | Air-conditioning system |
| CN109162913A (en) * | 2018-10-23 | 2019-01-08 | 珠海凌达压缩机有限公司 | Compressor test substitution system and control method |
| CN111023409A (en) * | 2019-11-25 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | High-temperature-prevention control method and system, storage medium and air conditioner |
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Application publication date: 20161214 |