CN106440566A - Air conditioner and cooling control method - Google Patents
Air conditioner and cooling control method Download PDFInfo
- Publication number
- CN106440566A CN106440566A CN201611081778.5A CN201611081778A CN106440566A CN 106440566 A CN106440566 A CN 106440566A CN 201611081778 A CN201611081778 A CN 201611081778A CN 106440566 A CN106440566 A CN 106440566A
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- China
- Prior art keywords
- air
- plunger member
- conditioner
- producing medium
- cold
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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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
- 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
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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
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Abstract
The invention relates to the technical field of air conditioning, and provides an air conditioner and a cooling control method thereof. According to the air conditioner, an adjustable coolant storage device is connected between an outdoor heat exchanger and a throttle device. The air storage device comprises a vertically placed column shell body and a plug. A fluid storage chamber is arranged between the plug and the column shell body. A fluid inlet and a fluid outlet is placed on the column shell body. The plug is connected with an elastic part placed along the direction of the plug movement. When the plug moves to change the volume capacity of the fluid storage chamber and the gravitational force of the coolant in the fluid storage chamber, the elastic part deforms to adjust the balance of the plug. According to the technical scheme, when the air conditioner coolant high pressure value is too high, the plug moves downward to expand the volume capacity of the fluid storage chamber, and thus a part of coolant in the air conditioner pipeline is stored in the fluid storage chamber to reduce the pressure of the coolant in the air conditioner pipeline until the coolant high pressure value meets the requirement, and at this moment the plug condition is in balance.
Description
Technical field
The present invention relates to air-conditioning technique field, more particularly, to a kind of air-conditioner and its refrigeration control method.
Background technology
Traditional T3 air-conditioner runs 52 DEG C of maximum temperature, and during general air-conditioning producer design, 2～3 DEG C of designs of meeting allowance are remaining,
Even if obtaining 55 DEG C about of the highest operating ambient temperature of air-conditioner.Even with such surplus, product is installed to user's family
Afterwards, still fault is frequent, and maintenance rate remains high.Especially Middle East environment is more severe, when weather predicting atmosphere temperature 45 C is left
When right, the air themperature after being exposed to the sun in outdoor often may be up to more than 60 DEG C, between even up to 67 to 68 DEG C.And this kind of temperature
Under degree environment, conventional T3 operating mode air-conditioner early just as high temperature, high pressure, high current and protect shutdown, or even burnt out by high temperature
?.Therefore for user, when hot environment needs cold, air-conditioner but protects shutdown cannot freeze.
Content of the invention
(1) technical problem to be solved
The purpose of the present invention is：A kind of air-conditioner and its refrigeration control method are provided, solve high present in prior art
The problem that cannot normally freeze under warm environment.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of air-conditioner, including：Connected by pipeline and form loop
Compressor, indoor heat exchanger and outdoor heat exchanger, be connected with throttling between described indoor heat exchanger and described outdoor heat exchanger
Device, is connected with scalable cold-producing medium memorizer between described outdoor heat exchanger and throttling arrangement, described scalable cold-producing medium is deposited
Reservoir includes the cylindrical shell vertically placed, and is arranged in described cylindrical shell and can be along the axial direction of described cylindrical shell
The plunger member moving reciprocatingly, described plunger member is sealed with the medial wall of described cylindrical shell, and the acting surface of described plunger member
Form fluid reservoir and described cylindrical shell between；The inlet being connected with described fluid reservoir and row are offered on described cylindrical shell
Liquid mouth, described inlet connects described outdoor heat exchanger, and described leakage fluid dram connects described throttling arrangement；Described plunger member with along
The elastic component of described plunger member direction of motion setting connects, when described plunger member is moved so that fluid reservoir under refrigerant pressure
When in volume and fluid reservoir, cold-producing medium gravity changes, described elastic component deforms to adjust the balance of described plunger member.
Preferably, the inner chamber of described cylindrical shell is separated to form regulation room and described fluid reservoir by described plunger member, and institute
State the top that fluid reservoir is located at described regulation room.
Preferably, described elastic component is located at described regulation room, and bottom is fixed on the base plate of described regulation room, apical support
Described plunger member.
Preferably, described cylindrical shell bottom is uncovered.
Preferably, described elastic component is spring.
Preferably, described plunger member is demarcation strip.
Preferably, described plunger member is piston or plunger.
Preferably, described throttling arrangement is electric expansion valve or heating power expansion valve.
The present invention also provides a kind of method carrying out refrigeration control according to above-mentioned air-conditioner, comprises the following steps：
S1, air-conditioner is switched to cooling operation mode so that cold-producing medium from the outlet of outdoor heat exchanger through described can
Adjust cold-producing medium memorizer and enter throttling arrangement；
After S2, air-conditioner are stable, plunger member is moved under refrigerant high pressure pressure and the effect of elastic component supporting force, and
It is finally reached balance, wherein,
If PReal≤PIf, then plunger member transfixion, thus keep PRealConstant；
If PReal＞ PIf, then the mobile simultaneously compression elastic piece of plunger member, so that the volume of fluid reservoir increases, so that PReal
Value reduces, until PReal=PIf；
PRealFor refrigerant high pressure pressure value in air-conditioner refrigerating circuit, PIfAllowed when being under refrigerating state by air-conditioner
Maximum refrigerant high pressure pressure value；
S3, when be stored with fluid reservoir cold-producing medium when, if PReal≤PIf, then elastic component plunger member is pushed up upwards, thus to
Refrigerant release in air-conditioner refrigerating circuit.
Preferably, when described throttling arrangement is electric expansion valve, further comprising the steps of：
S4, actual suction temperature T of measurement compressors, by actual suction temperature T of compressorsSetting with compressor is inhaled
Temperature degree T0Do difference, try to achieve the return-air degree of superheat Δ T=T of compressors-T0：
If △ T ＜ -1, reduce electronic expansion valve opening；
If △ T ＞ 1, increase electronic expansion valve opening；
If -1≤△ T≤1, keep Current electronic expansion valve opening constant.
(3) beneficial effect
Technical scheme has advantages below：The air-conditioner of the present invention, outdoor heat exchanger and throttling arrangement it
Between connect scalable cold-producing medium memorizer, described scalable cold-producing medium memorizer includes the cylindrical shell vertically placed, Yi Jishe
Plunger member, described plunger member and the institute put in described cylindrical shell and can move reciprocatingly along the axial direction of described cylindrical shell
State the medial wall sealing of cylindrical shell, and between the acting surface of described plunger member and described cylindrical shell, form fluid reservoir；Described
The inlet being connected with described fluid reservoir and leakage fluid dram are offered on cylindrical shell, described inlet connects described room by pipeline
External heat exchanger, described leakage fluid dram connects described throttling arrangement by pipeline；Described plunger member with along the described plunger member side of moving
Connect to the elastic component of setting, when described plunger member is moved so that cold-producing medium gravity changes in fluid reservoir volume and fluid reservoir
When, described elastic component deforms to adjust the balance of described plunger member.In the program, when refrigerant high pressure pressure value mistake in air-conditioner
Gao Shi, then plunger member move down so that fluid reservoir volume increase, thus in the pipeline of air-conditioner part of refrigerant storage
In fluid reservoir, reduce the pressure of cold-producing medium in air-conditioner hose, require until refrigerant high pressure pressure value meets, now piston part
Part reaches balance.Therefore, this air-conditioner normally can freeze under high temperature or even hyperthermal environments, and effectively solving user's high temperature is no
The problem of method refrigeration.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the air-conditioner of embodiment；
Fig. 2 is the structural representation of the scalable cold-producing medium memorizer of embodiment；
In figure：1st, scalable cold-producing medium memorizer；101st, cylindrical shell；102nd, plunger member；103rd, fluid reservoir；104th, feed liquor
Mouthful；105th, leakage fluid dram；106th, regulation room；107th, elastic component；2nd, compressor；3rd, indoor heat exchanger；4th, outdoor heat exchanger；5th, commutate
Device；6th, throttling arrangement.
Specific embodiment
With reference to the accompanying drawings and examples embodiments of the present invention are described in further detail.Following examples are used for
The present invention is described, but can not be used for limiting the scope of the present invention.
In describing the invention, it should be noted that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " being connected ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool connects or electrically connects；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
Embodiment one
Refer to Fig. 1, the air-conditioner of the present embodiment one, including：Connect compressor 2, the interior forming loop by pipeline
Heat exchanger 3 and outdoor heat exchanger 4, are connected with throttling arrangement 6 between described indoor heat exchanger 3 and described outdoor heat exchanger 4；In room
Scalable cold-producing medium memorizer 1 is connected, described scalable cold-producing medium memorizer 1 includes erecting between external heat exchanger 4 and throttling arrangement 6
The straight cylindrical shell 101 placed, and be arranged in described cylindrical shell 101 and can be along the axial direction of described cylindrical shell 101
The plunger member 102 moving reciprocatingly, described plunger member 102 is sealed with the medial wall of described cylindrical shell 101, and described plunger member
Form fluid reservoir 103 between 102 acting surface and described cylindrical shell 101；Offer and described storage on described cylindrical shell 101
The inlet 104 of liquid room 103 connection and leakage fluid dram 105, described inlet 104 connects described outdoor heat exchanger 4, described leakage fluid dram
The 105 described throttling arrangements 6 of connection；Described plunger member 102 and the elastic component 107 along the setting of described plunger member 102 direction of motion
Connect, when described plunger member 102 is moved so that cold-producing medium in fluid reservoir 103 volume and fluid reservoir 103 under refrigerant pressure
When gravity changes, described elastic component 107 deforms to adjust the balance of described plunger member 102.
It should be noted that the inlet 104 of scalable cold-producing medium memorizer 1 and leakage fluid dram 105 are to exist for air-conditioner
For situation about running under refrigeration mode, because cold-producing medium flows to outdoor heat exchanger 4 from compressor 2 under refrigeration mode, and from
Outdoor heat exchanger 4 flows to scalable cold-producing medium memorizer 1.And be directed to the air-conditioner being under heating mode, due to cold-producing medium from
It is introduced into indoor heat exchanger 3 after flowing out in compressor 2, be then passed through throttling arrangement 6 and enter scalable cold-producing medium memorizer 1, this
When cold-producing medium scalable cold-producing medium memorizer 1 is entered into by " leakage fluid dram 105 ", and by " inlet 104 " from adjustable restraining
Cryogen memorizer 1 is discharged.
Due to the air-conditioner under heating mode, its cold-producing medium sequentially passes through indoor heat exchanger 3, throttling arrangement 6, adjustable restraining
Cryogen memorizer 1 and outdoor heat exchanger 4.And the pressure of cold-producing medium is less after throttling arrangement 6, unlikely overcome adjustable
The elastic component active force of restraining cryogen memorizer 1, thus scalable cold-producing medium memorizer 1 is considered as accessing sky under refrigeration mode
Adjust the refrigerant line in device, namely now scalable cold-producing medium memorizer 1 does not almost have to the refrigerant amount of circulation in air-conditioner
There is adjustment effect.Therefore, in the present embodiment one, illustrate mainly for the air-conditioner running under refrigeration mode.
And, the air-conditioner of the present embodiment one, it can also be used exclusively for the machine freezing, thus it can be not provided with
Reversing arrangement 5.
Above-mentioned " acting surface of plunger member 102 ", refers to apply support force with cold-producing medium directly contact and to cold-producing medium
Face, in conjunction with accompanying drawing 1, refers to the upper surface of plunger member 102.
When the air-conditioner of the present embodiment is used for freezing, when air conditioner refrigerant high-pressure is too high, plunger member 102
Upper and lower both sides produce compression pressure reduction, and plunger member 102 motion down under refrigerant pressure makes fluid reservoir 103 volume increase, from
And the part of refrigerant in the pipeline of air-conditioner is stored in fluid reservoir 103, the reduced pressure of cold-producing medium in air-conditioner hose,
Require until refrigerant high pressure pressure value meets, now plunger member 102 reaches balance.Especially when air-conditioner is placed on high temperature or surpasses
When being freezed under hot environment, from outdoor heat exchanger 4 cold-producing medium out, there is very high pressure, now by adjustable restraining
Cryogen memorizer 1 storage cold-producing medium release pressure, the problem that cannot be able to be freezed with effectively solving user's high temperature.
Wherein, ambient temperature is higher, and the refrigerant high pressure pressure value of air-conditioner is bigger, thus plunger member 102 movement travel
Bigger, fluid reservoir 103 can store more cold-producing mediums, alleviates the too big problem of air conditioner refrigerant high-pressure value with effective.
Assume that ambient temperature is 65 DEG C of limiting temperature, then now plunger member 102 moves to minimum point, now the volume of fluid reservoir 103
Reaching maximum, thus storing cold-producing medium to greatest extent, reducing the refrigerant amount participating in circulation it is ensured that in air-conditioner in superhigh temperature
Normally freeze under environment, solve the problems, such as that user's high temperature air-conditioner stop jumping cannot be freezed.
In the same manner, when the refrigerant pressure of cold-producing medium in air-conditioner is too low, plunger member 102 both sides equally exist pressure reduction, this
When scalable cold-producing medium memorizer 1 can to air-conditioner pipeline discharge part of refrigerant, until refrigerant high pressure pressure value
Meet and require, now plunger member 102 reaches balance.
Wherein, refrigerant high pressure pressure refers under air-conditioner refrigerating state, the outlet of outdoor heat exchanger 4 and throttling arrangement
Pressure between 6 entrance.
In the present embodiment one, the initial position of the plunger member 102 of scalable cold-producing medium memorizer 1 is near cylindrical shell 101
Top, now the volume of fluid reservoir 103 is very little, thus fluid reservoir 103 can regard as access air-conditioner in refrigerant pipe
Section.Only when refrigerant high pressure hypertonia in air-conditioner, now the fluid reservoir 103 of scalable cold-producing medium memorizer 1 can be deposited
Storage some refrigerant.And, on the basis of fluid reservoir 103 is stored with cold-producing medium, if refrigerant high pressure hypotony, then
Fluid reservoir 103 can discharge some refrigerant in air-conditioner hose.
Refer to Fig. 2, in the present embodiment one, cylindrical shell 101 includes top board and base plate, thus plunger member 102 will be described
The inner chamber of cylindrical shell 101 is separated to form regulation room 106 and described fluid reservoir 103, and described fluid reservoir 103 is located at described regulation
The top of room 106.Wherein, but preferably necessarily by regulation room 106 vacuum state, thus avoiding plunger member 102 to move
During, the air pressure in regulation room 106 changes.Or it is also possible to make regulation room 106 and atmosphere, thus ensure
Stable gas pressure in regulation room 106.
On the basis of the above, preferably elastic component 107 is located in described regulation room 106.Wherein, the bottom of elastic component 107 is solid
It is scheduled on the base plate of described regulation room 106, plunger member 102 described in apical support.Thus, when refrigerant high pressure pressure is excessive,
Then plunger member 102 is moved and compression elastic piece 107 down, until refrigerant high pressure pressure meets sets requirement, now plunger member
102 reach balance.Certainly, it is also possible to be disposed in fluid reservoir 103 in the case that elastic component 107 meets particular requirement, only
It is the protection not only bad for elastic component 107 in the case of this kind, and the range of accommodation of the volume of fluid reservoir 103 also can be subject to shadow
Ring.
Understand from accompanying drawing 2, select spring in the present embodiment one as elastic component 107.When plunger member 102 balances, suddenly
Slightly if air pressure, its stress relation is：Mg+V × ρ g+F=k × s, wherein, mg refers to the gravity of plunger member 102, is constant
Value；Remove in the fluid reservoir 103 that V refers to for the cold-producing medium that circulates partly after, for storing the partly corresponding volume of cold-producing medium；
ρ refers to the density of cold-producing medium；The pressure that the cold-producing medium that F refers to flow produces to plunger member 102；K × s asks for Hooke's law
The elastic force of the spring obtaining, wherein k is the coefficient of elasticity of spring, and s is the deflection of spring.
Above-mentioned formula is deformed, obtains V × ρ g=k × s-mg-F, because mg is definite value, and when plunger member 102 balances,
The high-pressure of the cold-producing medium of flowing all reaches setting value, thus F is also definite value, therefore V × ρ g=k × s '.Wherein, V=A ×
S ', A are the cross-sectional area of cylindrical shell 101.Therefore, in the case of cylindrical shell 101 determination, in order to ensure scalable refrigeration
Agent memorizer 1 can be adjusted to refrigerant high pressure pressure in air-conditioner hose, can be in the hope of the k to spring.
It follows that on the premise of F determines, the selection of spring to consider scalable cold-producing medium memorizer 1 transversal
Area.Certainly, the elastic component 107 of the present embodiment one can also be the other forms beyond spring.
And, the concrete form of the plunger member 102 of the present embodiment one is not limited by the accompanying figures, it both can be using in accompanying drawing 2
The form of demarcation strip, can also adopt the form such as plunger or piston.Wherein, the simple manufacturing cost of the form structure of demarcation strip
Low, but sealing may be almost；And the form of plunger and piston, although its sealing is good, manufacturing cost can be more
High.
Additionally, the form of throttling arrangement 6 is also unrestricted, such as electric expansion valve or heating power expansion valve are included in this
Within the protection domain of application.
Cylindrical shell 101, its cross section can the arbitrary shape such as rounded, square, triangle.
According to above-mentioned air-conditioner, the present embodiment one provides a kind of method of refrigeration control, comprises the following steps：
S1, air-conditioner is switched to cooling operation mode so that cold-producing medium from the outlet of outdoor heat exchanger 4 through described can
Adjust cold-producing medium memorizer 1 and enter throttling arrangement 6；
After S2, air-conditioner are stable, plunger member 102 is transported under refrigerant high pressure pressure and the effect of elastic component supporting force
Dynamic, and it is finally reached balance, wherein,
If PReal≤PIf, then plunger member 102 transfixion, thus keep PRealConstant；
If PReal＞ PIf, then the mobile simultaneously compression elastic piece 107 of plunger member 102, so that the volume of fluid reservoir 103 increases,
So that PRealValue reduces, until PReal=PIf；
PRealFor refrigerant high pressure pressure value in air-conditioner refrigerating circuit, PIfAllowed when being under refrigerating state by air-conditioner
Maximum refrigerant high pressure pressure value；
S3, when be stored with fluid reservoir 103 cold-producing medium when, if PReal≤PIf, then elastic component 107 is by plunger member 102 upwards
Top, thus to refrigerant release in air-conditioner refrigerating circuit.When spring heads on plunger member 102 and moves upwards, fluid reservoir 103 volume
Reduce, thus the cold-producing medium in fluid reservoir 103 enters in the middle of refrigerating circuit.
When described throttling arrangement 6 is electric expansion valve, further comprising the steps of：
S4, actual suction temperature T of measurement compressor 2s, by actual suction temperature T of compressor 2sWith setting of compressor 2
Determine suction temperature T0Do difference, try to achieve the return-air degree of superheat Δ T=T of compressor 2s-T0：
If △ T ＜ -1, illustrate that refrigerating system coolant flow is too big, evaporating temperature is relatively low, and electronic expansion valve opening turns one down
Level；
If △ T ＞ 1, illustrate that refrigerating system coolant flow is less than normal, evaporating temperature is higher, and electronic expansion valve opening tunes up one
Level；
If -1≤△ T≤1, current refrigeration system running state is described preferably, keeps Current electronic expansion valve opening constant.
Obviously, as the electric expansion valve of throttling arrangement, its aperture regulation with air-conditioner whole service process, its
Although S4, it is not intended that the time is upper and S1-S3 has precedence relationship.And it is possible to set an execution cycle t,
Thus judge the size of a return-air degree of superheat Δ T every time t, and electronic expansion valve opening is adjusted according to each judgement.
Embodiment two
It is with embodiment one difference, the air-conditioner of the present embodiment two, the cylindricality of its scalable cold-producing medium memorizer 1
Housing 101 lower end is uncovered, thus the inner chamber of cylindrical shell 101 does not have regulation room 106.In the case of this kind, elastic component 107 passes through
Supporting construction is fixed on the side wall of cylindrical shell 101.
In the case of this kind, the structure of cylindrical shell is simply easy to process, and can ensure that plunger member 102 and big gas phase
With, it is to avoid the balance of effects of air pressure plunger member.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this
Bright be described in detail, it will be understood by those within the art that, technical scheme is carried out various combinations,
Modification or equivalent, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention will
Ask in the middle of scope.
Claims (10)
1. a kind of air-conditioner, including：Connect compressor, indoor heat exchanger and the outdoor heat exchanger forming loop, institute by pipeline
State and be connected with throttling arrangement between indoor heat exchanger and described outdoor heat exchanger it is characterised in that described outdoor heat exchanger and section
It is connected with scalable cold-producing medium memorizer, described scalable cold-producing medium memorizer includes the cylindrical shell vertically placed between stream device
Body, and the plunger member being arranged in described cylindrical shell and can moving reciprocatingly along the axial direction of described cylindrical shell, described
Plunger member is sealed with the medial wall of described cylindrical shell, and forms storage between the acting surface of described plunger member and described cylindrical shell
Liquid room；The inlet being connected with described fluid reservoir and leakage fluid dram are offered on described cylindrical shell, described inlet connects described
Outdoor heat exchanger, described leakage fluid dram connects described throttling arrangement；Described plunger member is arranged with along the described plunger member direction of motion
Elastic component connect, when described plunger member is moved so that cold-producing medium weight in fluid reservoir volume and fluid reservoir under refrigerant pressure
When power changes, described elastic component deforms to adjust the balance of described plunger member.
2. air-conditioner according to claim 1 is it is characterised in that the inner chamber of described cylindrical shell is separated by described plunger member
Form regulation room and described fluid reservoir, and described fluid reservoir is located at the top of described regulation room.
3. air-conditioner according to claim 2 it is characterised in that described elastic component is located at described regulation room, fix by bottom
On the base plate of described regulation room, plunger member described in apical support.
4. air-conditioner according to claim 1 is it is characterised in that described cylindrical shell bottom is uncovered.
5. air-conditioner according to claim 1 is it is characterised in that described elastic component is spring.
6. air-conditioner as claimed in any of claims 1 to 5 is it is characterised in that described plunger member is demarcation strip.
7. air-conditioner as claimed in any of claims 1 to 5 it is characterised in that described plunger member be piston or
Plunger.
8. air-conditioner as claimed in any of claims 1 to 5 is it is characterised in that described throttling arrangement is that electronics is swollen
Swollen valve or heating power expansion valve.
9. air-conditioner as claimed in any of claims 1 to 8 carries out the method for refrigeration control it is characterised in that wrapping
Include following steps：
S1, air-conditioner is switched to cooling operation mode so that cold-producing medium from the outlet of outdoor heat exchanger through described scalable
Cold-producing medium memorizer enters throttling arrangement；
After S2, air-conditioner are stable, plunger member is moved under refrigerant high pressure pressure and the effect of elastic component supporting force, and finally
Reach balance, wherein,
If PReal≤PIf, then plunger member transfixion, thus keep PRealConstant；
If PReal＞ PIf, then the mobile simultaneously compression elastic piece of plunger member, so that the volume of fluid reservoir increases, so that PRealValue subtracts
Little, until PReal=PIf；
PRealFor refrigerant high pressure pressure value in air-conditioner refrigerating circuit, PIfAllowed when being under refrigerating state by air-conditioner
Big refrigerant high pressure pressure value；
S3, when be stored with fluid reservoir cold-producing medium when, if PReal≤PIf, then elastic component plunger member is pushed up upwards, thus to air-conditioning
Refrigerant release in device refrigerating circuit.
10. method according to claim 9 is it is characterised in that when described throttling arrangement is electric expansion valve, also include
Following steps：
S4, actual suction temperature T of measurement compressors, by actual suction temperature T of compressorsSetting air-breathing temperature with compressor
Degree T0Do difference, try to achieve the return-air degree of superheat Δ T=T of compressors-T0：
If △ T ＜ -1, reduce electronic expansion valve opening；
If △ T ＞ 1, increase electronic expansion valve opening；
If -1≤△ T≤1, keep Current electronic expansion valve opening constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081778.5A CN106440566A (en) | 2016-11-30 | 2016-11-30 | Air conditioner and cooling control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081778.5A CN106440566A (en) | 2016-11-30 | 2016-11-30 | Air conditioner and cooling control method |
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| CN106440566A true CN106440566A (en) | 2017-02-22 |
Family
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| CN201611081778.5A Pending CN106440566A (en) | 2016-11-30 | 2016-11-30 | Air conditioner and cooling control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108036540A (en) * | 2017-12-28 | 2018-05-15 | 科希曼电器有限公司 | A kind of water-side heat for carrying compensator |
| CN108344216A (en) * | 2018-02-08 | 2018-07-31 | 广东高而美制冷设备有限公司 | Refrigerant reservoir and Teat pump boiler |
| CN109708376A (en) * | 2018-07-13 | 2019-05-03 | 青岛海尔股份有限公司 | A kind of refrigerator refrigeration system |
| CN111219899A (en) * | 2018-11-27 | 2020-06-02 | 斯凯孚公司 | Cooling system and method for operating a cooling system |
| CN115200270A (en) * | 2022-06-28 | 2022-10-18 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner, gas-liquid separator, and operation control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106949683A (en) * | 2017-04-27 | 2017-07-14 | 华南理工大学 | A kind of flexible control pressure system and its operation method of mixed working fluid cryogenic refrigeration cooling |
| CN106949683B (en) * | 2017-04-27 | 2022-10-21 | 华南理工大学 | Flexible pressure control system for low-temperature refrigeration and cooling of mixed working medium and operation method thereof |
| CN108036540A (en) * | 2017-12-28 | 2018-05-15 | 科希曼电器有限公司 | A kind of water-side heat for carrying compensator |
| CN108036540B (en) * | 2017-12-28 | 2024-04-16 | 科希曼电器有限公司 | Water side heat exchanger with balance tank |
| CN108344216A (en) * | 2018-02-08 | 2018-07-31 | 广东高而美制冷设备有限公司 | Refrigerant reservoir and Teat pump boiler |
| CN108344216B (en) * | 2018-02-08 | 2021-02-12 | 广东高而美制冷设备有限公司 | Refrigerant storage and heat pump water heater |
| CN109708376A (en) * | 2018-07-13 | 2019-05-03 | 青岛海尔股份有限公司 | A kind of refrigerator refrigeration system |
| WO2020010897A1 (en) * | 2018-07-13 | 2020-01-16 | 青岛海尔股份有限公司 | Refrigerator cooling system |
| CN109708376B (en) * | 2018-07-13 | 2020-06-23 | 青岛海尔股份有限公司 | Refrigerator refrigerating system |
| US11313599B2 (en) | 2018-07-13 | 2022-04-26 | Qingdao Haier Co., Ltd. | Refrigerator cooling system capable of regulating amount of refrigerant |
| CN111219899A (en) * | 2018-11-27 | 2020-06-02 | 斯凯孚公司 | Cooling system and method for operating a cooling system |
| CN115200270A (en) * | 2022-06-28 | 2022-10-18 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner, gas-liquid separator, and operation control device |
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