CN105937788A - Integral air conditioner and control method thereof - Google Patents
Integral air conditioner and control method thereof Download PDFInfo
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- CN105937788A CN105937788A CN201610389188.2A CN201610389188A CN105937788A CN 105937788 A CN105937788 A CN 105937788A CN 201610389188 A CN201610389188 A CN 201610389188A CN 105937788 A CN105937788 A CN 105937788A
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- Prior art keywords
- flow
- package
- plant
- flow control
- refrigerant flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention discloses an integral air conditioner and a control method thereof. The integral air conditioner comprises a chassis, an electric control box, a compressor, a throttling device, an indoor heat exchanger, an outdoor heat exchanger and a heat dissipation device, wherein the heat dissipation device comprises a first refrigerant flow path and a second refrigerant flow path which are connected between the outdoor heat exchanger and the throttling device in parallel, and further comprises a radiator and a flow control part; the radiator is connected on the first refrigerant flow path in series; and the flow control part can control flow of the first refrigerant flow path and the second refrigerant flow path. According to the integral air conditioner provided by the invention, effective heat dissipation can be carried out on a part to be subjected to heat dissipation; when the temperature of a refrigerant flowing through the heat dissipation device is too low, the flow of the refrigerant flowing through the radiator can be decreased; and during refrigeration operation, the refrigerant flowing into the radiator is not throttled, and the refrigerant in the radiator is prevented from being too cold, so that condensation on the part to be subjected to heat dissipation is avoided, and the operation reliability of the system is improved.
Description
Technical field
The present invention relates to heating-cooling equipment field, especially relate to a kind of package AC plant and control method thereof.
Background technology
There is the problem that caloric value is big in the electronic control module of frequency changer, if the too high aging effects to automatically controlled components and parts of temperature is relatively
Greatly, the electric-controlled box falling temperature technique in current industry mainly has two kinds, and one is air-cooled, it is simply that utilize the wind field of blower fan to drive
Electric-controlled box dispels the heat；Another kind cools down for coolant, i.e. utilizes the coolant that in system, temperature is relatively low to be incorporated into inside electric-controlled box, profit
With the cold of coolant, electric-controlled box is dispelled the heat.Wherein the first air cooling way noise is big, dust stratification is many in casing, and second
Plant the coolant type of cooling on electric-controlled box, easily produce condensed water, cause component wear.
Summary of the invention
It is contemplated that solve one of above-mentioned technical problem of the prior art the most to a certain extent.To this end, the present invention
A purpose be to propose a kind of package AC plant, can avoid treating radiating piece causes table owing to low temperature coolant flows through
The problem that face produces condensation.
Further object is that the control method that a kind of above-mentioned package AC plant is provided.
Package AC plant according to embodiments of the present invention, including: chassis；For controlling the fortune of described package AC plant
The electric-controlled box of row state；Compressor, described compressor is located on described chassis；Indoor heat exchanger, described indoor heat exchanger
It is located on described chassis；Outdoor heat exchanger, described outdoor heat exchanger is located on described chassis；Throttling arrangement, described throttling
Device is connected in series between described indoor heat exchanger and described outdoor heat exchanger；Heat abstractor, described heat abstractor includes
The first refrigerant flow being connected in parallel between described outdoor heat exchanger and described throttling arrangement and the second refrigerant flow, described
Heat abstractor also includes that radiator and flow control member, described radiator are used for treating radiating piece and dispel the heat, described heat radiation
Device is connected on described first refrigerant flow, and described flow control member is configured to control described first refrigerant flow and described
The flow of the second refrigerant flow.
Package AC plant according to embodiments of the present invention, by arrange in heat abstractor parallel connection the first refrigerant flow and
Second refrigerant flow, radiator tandem is on the first refrigerant flow, and flow control member controllable flow is through the coolant stream of radiator
Amount, thus treat radiating piece and effectively dispel the heat, simultaneously when the refrigerant temperature flowing through heat abstractor is too low, it is possible to reduce
Flow through the cold medium flux of radiator.The coolant flowed into due to the radiator when refrigerating operaton not yet throttles, it is to avoid in radiator
Coolant supercool, thus avoid treating to occur on radiating piece condensation, improve system reliability of operation.
In certain embodiments, described chassis is provided with the condensed water remittance for collecting the condensed water on described indoor heat exchanger
Ji Qu, a part for described first refrigerant flow is located in described condensed water pooling zone.Thus, can further improve heat radiation
The radiating effect of device.
Specifically, described flow control member includes first flow control valve and second flow control valve, described first flow control
Valve processed is connected on described first refrigerant flow, and described second flow control valve is connected on described second refrigerant flow.This
Sample, two refrigerant flows control respectively, control convenient.
In certain embodiments, described radiator is connected to dispel the heat described electric-controlled box with described electric-controlled box.Thus,
The feature of all-in-one can be made full use of, electric control element is effectively dispelled the heat, it is to avoid electric control element temperature is too high causes damage,
Thus improve the reliability of system further.
Specifically, described radiator is close on the lower surface of described electric-controlled box.Thus, the contacting of radiator and electric-controlled box
Area is big, and heat exchange efficiency is high.Radiator is located at the lower section of electric-controlled box, it is to avoid radiator hinders electric-controlled box maintenance, and
The position of radiator is relatively low, is also convenient on chassis row and sets the first refrigerant flow.
In certain embodiments, described chassis is provided with spaced apart interior air channel and outer air duct, and described indoor heat exchanger is located at
In described interior air channel, described outdoor heat exchanger is located in described outer air duct.
Specifically, described electric-controlled box is connected between described interior air channel and outer air duct, and between described electric-controlled box and described chassis
Separate.
The control method of package AC plant according to embodiments of the present invention, described package AC plant is according in the present invention
Stating the package AC plant described in embodiment, the control of described package AC plant comprises the steps: in described monoblock type
After air-conditioner is opened, described in detection, treat temperature t of radiating piece；Described flow control member regulates institute according to temperature t of detection
State the first refrigerant flow and the flow of the second refrigerant flow.
The control method of package AC plant according to embodiments of the present invention, by arranging the first of parallel connection in heat abstractor
Refrigerant flow and the second refrigerant flow, radiator tandem is on the first refrigerant flow, and flow control member controllable flow is through heat radiation
The cold medium flux of device, substantially can control the temperature treating radiating piece in set point, improves package AC plant and runs
Reliability.
Specifically, at interval of setting temperature t treating radiating piece described in time detecting；It is less than in described temperature t treating radiating piece
During equal to the first setting value T1, described flow control member reduces the flow of described first refrigerant flow and increases by the second coolant
The flow of stream；When described temperature t until radiating piece is more than or equal to the second setting value T2, described flow control member subtracts
The flow of little described second refrigerant flow and the flow of increase the first refrigerant flow；Meet in described temperature t treating radiating piece
< during T2, the flow of described first refrigerant flow and the flow of described second refrigerant flow keep constant to T1 < t.Thus, may be used
Substantially controlling in the range of (T1, T2) by the temperature treating radiating piece, it is the most accurate to control.
More specifically, when described flow control member includes first flow control valve and second flow control valve, and described first
Flow control valve is connected in series on described first refrigerant flow, and described second flow control valve is connected in series in described second
Time on refrigerant flow, if be detected that described in treat temperature t of radiating piece less than or equal to the first setting value T1, described first
The aperture regulation of flow control valve is to O1, the aperture regulation of described second flow control valve to O3；If be detected that institute
Stating when temperature t of radiating piece is more than or equal to the second setting value T2, the aperture of described first flow control valve regulates to O3,
The aperture of described second flow control valve regulates to O1；Treat described in if be detected that temperature t of radiating piece meets
T1 < t < during T2, the aperture of described first flow control valve and second flow control valve regulates respectively to O2, wherein, O1 <
O2<O3.Each flow control valve only need to arrange three aperture gears, and structure is relatively simple, controls process the simplest.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Substantially, or by the practice of the present invention recognize.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become bright from combining the accompanying drawings below description to embodiment
Aobvious and easy to understand, wherein:
Fig. 1 is the internal structure schematic diagram of package AC plant according to an embodiment of the invention；
Fig. 2 is the coolant circulating system schematic diagram of package AC plant according to an embodiment of the invention；
Fig. 3 is the logic control chart of flow control member according to an embodiment of the invention；
Fig. 4 be according to an embodiment of the invention flow control member with the control schematic diagram of the variations in temperature of electric-controlled box.
Reference:
Package AC plant 100,
Compressor 1, air vent a, air entry b,
Electric-controlled box 2, outdoor heat exchanger 3, indoor heat exchanger 4, throttling arrangement 5,
Heat abstractor the 6, first refrigerant flow the 61, second refrigerant flow 62, radiator 63, flow control member 64,
Flow control valve 641, second flow control valve 642,
Chassis 7, interior air channel 8, outer air duct 9.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish phase
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1-Fig. 2, package AC plant 100 according to embodiments of the present invention is described.
Package AC plant 100 according to embodiments of the present invention, as depicted in figs. 1 and 2, including: chassis 7, is used for controlling
The electric-controlled box 2 of the running status of package AC plant 100 processed, compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3,
Throttling arrangement 5 and heat abstractor 6.
Compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3 are located on chassis 7, and compressor 1 has air entry b and row
QI KOU a.It should be noted that compressor, electric-controlled box 2, outdoor heat exchanger 3 and the structure of indoor heat exchanger 4 and work
Make principle etc. and be prior art, be the most just not described in detail.
In package AC plant 100, chassis 7 is provided with spaced apart interior air channel 8 and outer air duct 9, indoor heat exchanger 4
Being located in interior air channel 8, outdoor heat exchanger 3 is located in outer air duct 9, and throttling arrangement 5 is connected in series in indoor heat exchanger 4
With between outdoor heat exchanger 3, throttling arrangement 5 constitutes coolant with compressor 1, indoor heat exchanger 4 and outdoor heat exchanger 3
Blood circulation.Alternatively, throttling arrangement 5 can be capillary tube, orifice plate, mechanical swelling valve or electric expansion valve etc.,
Here it is not especially limited.
Here, for the function of air-conditioner, package AC plant 100 can be air conditioner, and package AC plant 100 is also
It can be single cooler.For the occupation mode of air-conditioner, package AC plant 100 can be window air conditioner, and monoblock type is empty
Device 100 is adjusted to be alternatively mobile air-conditioner or other kinds of all-in-one.
When package AC plant 100 is air conditioner, package AC plant 100 has refrigeration mode and heating mode.This
Time, package AC plant 100 also includes that the assembly that commutates, commutation assembly have air-breathing interface, exhaust port, interior machine interface
With outer machine interface, air-breathing interface and one of them conducting in interior machine interface and outer machine interface, exhaust port and interior machine interface
With another conducting in outer machine interface.Wherein, air-breathing interface is connected with the air entry b of compressor 1, exhaust port with
The air vent a of compressor 1 is connected.When package AC plant 100 is in refrigeration mode, air-breathing interface and interior machine interface
Conducting and exhaust port turn on outer machine interface.When package AC plant 100 is in heating mode, air-breathing interface is with outer
The conducting of machine interface and exhaust port turn on interior machine interface.Preferably, commutation assembly is cross valve.In cold-warm type monoblock type
In air-conditioner, the first end of indoor heat exchanger 4 is connected with interior machine interface, the first end of outdoor heat exchanger 3 and outer machine interface
Being connected, throttling arrangement 5 is connected between the second end of indoor heat exchanger 4 and the second end of outdoor heat exchanger 3.
When package AC plant 100 is single cooler, as in figure 2 it is shown, package AC plant 100 has refrigeration mode.
In single cold type package AC plant, the first end of indoor heat exchanger 4 is connected with the air entry b of compressor 1, outdoor heat exchange
First end of device 3 is connected with the air vent a of compressor 1, throttling arrangement 5 be connected to the second end of indoor heat exchanger 4 with
Between second end of outdoor heat exchanger 3.
In cold-warm type package AC plant and single cold type package AC plant, heat abstractor 6 is all connected in series in indoor and changes
Between second end and second end of outdoor heat exchanger 3 of hot device 4.Therefore describe, the most all with shown in Fig. 2 for simplifying
The structure of package AC plant 100 is described as a example by single cold type air-conditioner.
Seeing figures.1.and.2, heat abstractor 6 includes be connected in parallel between outdoor heat exchanger 3 and throttling arrangement 5
One refrigerant flow 61 and the second refrigerant flow 62, heat abstractor 6 also includes radiator 63 and flow control member 64, dissipates
Hot device 63 with treat that radiating piece is connected in package AC plant 100, radiator 63 is used for treating radiating piece and dispels the heat,
Radiator 63 is connected on the first refrigerant flow 61, and flow control member 64 is configured to control the first refrigerant flow 61 He
The flow of the second refrigerant flow 62.
It is to say, heat abstractor 6 is connected in series between indoor heat exchanger 4 and outdoor heat exchanger 3, refrigerant circulation system
In system, coolant can flow through the first refrigerant flow 61 and the second refrigerant flow 62.Radiator 63 is connected on the first refrigerant flow
On 61, coolant flows through radiator 63 to absorb the heat treating radiating piece.
First refrigerant flow the 61, second refrigerant flow 62 and the setting of flow control member 64, can preferably distribute two
The cold medium flux of stream, and can make according to treating that the temperature of radiating piece, air-conditioning use the time or use the situations such as season
Regulation change.
In the example in figure 2, after high pressure gaseous coolant is discharged from compressor 1, flow into outdoor heat exchanger 3,
Coolant presses liquid refrigerants, during coolant enters heat abstractor 6 afterwards during exothermic condensation forms low temperature in outdoor heat exchanger 3.
Flow into the coolant of the first refrigerant flow 61 to absorb heat when flowing through radiator 63 evaporation, the coolant assemble jamming of latter two stream
The evaporation endothermic of indoor heat exchanger 4 is entered with reducing pressure by regulating flow, the low-temp low-pressure liquid refrigerant stream after blood pressure lowering to throttling arrangement 5,
To reduce indoor temperature, the coolant in last indoor heat exchanger 4 flows back to compressor 1, and with the continuous repetitive cycling of this process.
In the figure 2 example, need to treat radiating piece when entering summer and dispel the heat, the first refrigerant flow 61 can be tuned up
Flow, treat the caloric receptivity of radiating piece to improve.Need not when entering winter treat radiating piece heat radiation, now can subtract
The flow of little first refrigerant flow 61, to reduce the caloric receptivity treating radiating piece.
Here, the parts that package AC plant 100 internal heat generation amount is bigger can be dispelled the heat by radiator 63, treats radiating piece
Type is not specifically limited.
It should be noted that under summer muggy weather, the heat of heat generating components is difficult to disperse, therefore the setting of radiator 63
Putting primarily to can play thermolysis when heat, therefore air-conditioner is typically when refrigeration just to need to tune up
The flow of the first refrigerant flow 61.
In the discloseder materials of correlation technique, heat dissipation heat exchanger is typically on the pipeline after throttling in series or in parallel,
As a example by single cooler, correlation technique material is typically to be connected between throttling arrangement and indoor heat exchanger heat dissipation heat exchanger.
But the refrigerant temperature after Jie Liu is too low, easily treating to be formed on radiating piece condensed water, when radiator is used for dispelling the heat electric-controlled box,
Electric-controlled box easily gets wet and causes electronic control module fault, affects automatically controlled service life.The most therefore, correlation technique does not obtain extensively
General application.
And in present patent application, radiator 63 is equivalent on the refrigerant pipeline before being connected in series in throttling, during refrigerating operaton
Temperature from the coolant of outdoor heat exchanger 3 discharge will not be too low, it is to avoid is treating the Surface Creation condensed water of radiating piece.The most just
Being to say, in a kind of refrigeration cycle, coolant passes through throttling arrangement 5 after first flowing through heat abstractor 6, flow to room the most again
Interior heat exchanger 4.Owing to throttling arrangement 5 has the effect of cooling, coolant is filled by throttling after absorbing heat in heat abstractor 6 again
Put 5 heat releases, it is ensured that flow into the refrigerant temperature in indoor heat exchanger 4 relatively low, improve efficiency.
Package AC plant 100 according to embodiments of the present invention, by arranging the first coolant of parallel connection in heat abstractor 6
Stream 61 and the second refrigerant flow 62, radiator 63 is connected on the first refrigerant flow 61, and flow control member 64 is controlled
System flows through the cold medium flux of radiator 63, thus treats radiating piece and effectively dispel the heat, simultaneously when flowing through heat abstractor 6
Refrigerant temperature too low time, it is possible to reduce and flow through the cold medium flux of radiator 63.Due to the radiator 63 when refrigerating operaton
The coolant flowed into not yet throttles, it is to avoid the coolant in radiator 63 is supercool, thus avoids treating to occur on radiating piece condensation,
Improve system reliability of operation.
In embodiments of the present invention, on package AC plant 100, interior air channel 8 and outer air duct 9 are spaced apart, and interior air channel 8 can
Being connected with indoor with to indoor absorption refrigeration, outer air duct 9 can connect with outdoor environment with to outdoor heat release.
In certain embodiments, electric-controlled box 2 is connected between interior air channel 8 and outer air duct 9, can facilitate inside and outside component circuitry
Connect.Compressor 1 is also provided between interior air channel 8 and outer air duct 9 simultaneously, and these bulky part are arranged on interior air channel
Between 8 and outer air duct 9, be conducive to outer air duct in interval, improve air-conditioning heat exchange efficiency.
In certain embodiments, radiator 63 is connected to dispel the heat electric-controlled box 2 with electric-controlled box 2, so, and can be fully
Utilize the feature of all-in-one, electric control element is effectively dispelled the heat, it is to avoid electric control element temperature too high causing damages, thus
Improve the reliability of system further.
In a concrete example, package AC plant 100 is a kind of cold transducer air conditioning of window list, this integral air conditioner
Electric-controlled box 2 caloric value of device 100 is relatively big, and the heat of electric-controlled box 2 is difficult to scatter the most in high temperature environments, therefore by electricity
Control box 2 is connected to radiator 63, it is possible to controllably carries out electric-controlled box 2 and dispels the heat, it is ensured that the cold transducer air conditioning of window list is automatically controlled
The radiating effect that module is good.
Specifically, electric-controlled box 2 is located at the top on chassis 7 at interval, and so, electric-controlled box 2 surrounding is ventilated, available
The heat radiation of electric-controlled box 2 is strengthened in air circulation.
More specifically, radiator 63 is close on the lower surface of electric-controlled box 2, such radiator 63 connects with electric-controlled box 2
Contacting surface is long-pending big, and heat exchange efficiency is high.Radiator 63 is located at the lower section of electric-controlled box 2, it is to avoid radiator 63 hinders electric-controlled box
2 maintenances, and the position of radiator 63 is relatively low, is also convenient on chassis 7 row and sets the first refrigerant flow 61.
In one particular embodiment of the present invention, radiator 63 can use the various microminiature heat exchange disclosed in prior art
The structure of device, is not construed as limiting here.Preferably, radiator 63 is configured to radiator coil tube, so that radiator 63
Simple in construction.
In certain embodiments, chassis 7 is provided with the condensed water pooling zone for collecting the condensed water on indoor heat exchanger 4,
Being located at least partially in condensed water pooling zone of first refrigerant flow 61.
For heat dissipation heat exchanger is directly connected on the scheme between condensator outlet and restricting element, before throttling
Coolant flow through radiator 63, good cooling effect during refrigeration, and condensed water will not be produced, but due to condenser out cold
Matchmaker's temperature is higher, and therefore cooling effect is not reaching to perfect condition.
And pass through radiator 63 behind the coolant condensed water pooling zone before throttling, and utilize condensed water to absorb heat, can be further
Improve radiator 63 radiating effect, and refrigerant temperature will not too low and cause treating on radiating piece produce condensation.
Specifically, when air conditioning system refrigerating operaton, indoor heat exchanger 4 can produce condensed water.Increasing along with condensed water
Many, condensed water slowly along chassis 7 to outer air duct 9 diffluence.The condensation above chassis 7 of first refrigerant flow 61
Water pooling zone, the condensed water generation heat exchange that coolant in the first refrigerant flow 61 is relatively low with temperature, make the first coolant stream
The temperature of the coolant in road 61 reduces further, even below at the second end of outdoor heat exchanger 4 refrigerant temperature reach 5 DEG C with
On.Radiator 63 is connected on the first refrigerant flow 61, due to the further reduction of refrigerant temperature, can treat scattered
Warmware preferably dispels the heat.
Alternatively, chassis 7 is provided with hot well, hot well between interior air channel 8 and outer air duct 9,
A part for first refrigerant flow 61 is located in hot well.
In some embodiments of the invention, as depicted in figs. 1 and 2, flow control member 64 includes first flow control valve
641 and second flow control valve 642, first flow control valve 641 is connected in series on the first refrigerant flow 61, and second
Flow control valve 642 is connected in series on the second refrigerant flow 62.So, two refrigerant flows control respectively, control
Convenient.
Certainly, the structure of the flow control member 64 of the embodiment of the present invention is not limited to this, and such as, flow control member 64 also may be used
For three-way magnetic valve, three-way magnetic valve is located at the coolant import and export of heat abstractor 6, and two valve ports of three-way magnetic valve divide
It is not connected with the first refrigerant flow 61 and the second refrigerant flow 62, the 3rd valve port of three-way magnetic valve and refrigerant circulation system
The main pipeline of system is connected, and three-way magnetic valve can control to flow through the cold of the first refrigerant flow 61 and the second refrigerant flow 62 simultaneously
Matchmaker's flow.Or, it is interior to control to flow through the stream of the coolant of radiator 63 that flow control member 64 may be alternatively provided at radiator 63
Amount.
In a concrete example, as in figure 2 it is shown, the first refrigerant flow 61 and the second refrigerant flow 62 are connected in parallel,
It is respectively equipped with first flow control valve 641 and second flow control valve on first refrigerant flow 61 and the second refrigerant flow 62
642.First refrigerant flow 61 and the second end of second refrigerant flow 62 one end junction chamber external heat exchanger 3, the other end is even
Connect throttling arrangement 5.The radiator 63 of electric-controlled box 2 is connected on the first refrigerant flow 61, and is positioned at below electric-controlled box 2,
And it is closely coupled with it.Electric-controlled box 2 is between interior air channel 8 and outer air duct 9, and outdoor heat exchanger 3, indoor heat exchange
Device 4, compressor 1 are respectively positioned on chassis 7, and outdoor heat exchanger 3 and indoor heat exchanger 4 are respectively by outer air duct 9 and interior
Air channel 8 is wrapped in.
This air conditioning system makes full use of the construction features of package AC plant 100, and the first refrigerant flow 61 flows through chassis 7,
And heat exchange abundant with condensed water.Two streams are provided with flow control valve simultaneously, distribute the cold medium flux of two streams,
So can reach more preferable electronic control module radiating effect.
Below with reference to the control method of Fig. 1-Fig. 4 description package AC plant according to embodiments of the present invention, the method is fitted
The air-conditioner answered is according to the package AC plant 100 described in the above embodiment of the present invention, hereinafter to package AC plant
The structure of 100 does not repeats.
The control method of package AC plant according to embodiments of the present invention, comprises the steps:
After package AC plant 100 is opened, temperature t of radiating piece is treated in detection；
Flow control member 64 regulates the first refrigerant flow 61 and flow of the second refrigerant flow 62 according to temperature t of detection.
Thus, the control method of package AC plant according to embodiments of the present invention, the temperature treating radiating piece substantially can be controlled
System, in set point, improves package AC plant reliability of operation.
In certain embodiments, after package AC plant 100 is opened, treat the temperature of radiating piece at interval of setting time detecting
Degree t.
Specifically, when temperature t of radiating piece is less than or equal to the first setting value T1, flow control member 64 reduces first
The flow of refrigerant flow 61 and the flow of increase the second refrigerant flow 62；
When temperature t of radiating piece is more than or equal to the second setting value T2, flow control member 64 reduces the second refrigerant flow
The flow of 62 and the flow of increase the first refrigerant flow 61；
Until temperature t of radiating piece meet T1 < t < during T2, the flow of the first refrigerant flow 61 and the second refrigerant flow 62
Flow keep constant.
So, substantially can control in the range of (T1, T2) by the temperature treating radiating piece, it is the most accurate to control.
In certain embodiments, as in figure 2 it is shown, flow control member 64 includes first flow control valve 641 and second
Flow control valve 642, and first flow control valve 641 is connected in series on the first refrigerant flow 61, second flow controls
Valve 642 is connected in series on the second refrigerant flow 62.
After air-conditioning is opened, as shown in Figure 4, if be detected that temperature t treating radiating piece less than or equal to the first setting value T1,
The aperture regulation of first flow control valve 641 is to O1, the aperture regulation of second flow control valve 642 to O3；
If when temperature t of radiating piece is more than or equal to the second setting value T2, the aperture regulation of first flow control valve 641
To O3, the aperture regulation of second flow control valve 642 to O1；
If until temperature t of radiating piece meet T1 < t < during T2, first flow control valve 641 and second flow control valve 642
Aperture regulate respectively to O2, wherein, O1 < O2 < O3.
So, each flow control valve only need to arrange three aperture gears, and structure is relatively simple, controls process the simplest.
As a example by shown in Fig. 3 and Fig. 4 a specific embodiment, package AC plant 100 controls the step one of process:
Start runs, and this step refers to the refrigerating operaton of routine.
After air-conditioner is started shooting, the aperture of first flow control valve 641 and second flow control valve 642 is O2.
Start timing at air-conditioner from start, when running between reach m1 after, carry out step 2: the temperature of detection electronic control module
Degree t.
Afterwards, carry out step 3: judge the range intervals at the temperature t place of the electronic control module detected, first-class
Control valve 641 selects different with second flow control valve 642 according to the range intervals at the temperature t place of electronic control module
Aperture.
After the aperture of first flow control valve 641 and second flow control valve 642 regulates, carry out step 4: air-conditioning control
Make this regulation after aperture run, and from regulation after start reclocking, when running between reach m2 after, be back to step
Two, again detect regulation after running time full m2 the most after adjustment, and according to this process repetitive cycling, until air-conditioning closes
Machine.
In the above-described embodiments, when the temperature t≤T1 of electronic control module, first flow control valve 641 and second flow control
Valve 642 aperture is adjusted to O1 and O3 respectively；When T1 < T < T2, first flow control valve 641 and second flow control
The aperture of valve 642 regulates respectively to O2；When T >=T2, first flow control valve 641 and second flow control valve 642
Aperture be adjusted to O3 and O1 respectively；Wherein, O3 > O2 > O1, T2 > T1.
For different temperature ranges, flow control valve selects different apertures, and one is to preferably carry out electronic control module
Heat radiation, it is to avoid supercool or overheated；Two allow for the operation that refrigeration system can be stable.
The control method of air-conditioner according to embodiments of the present invention, with flow control valve control, and according to inspection in electric-controlled box 2
The temperature of the electronic control module measured is to regulate the aperture of flow control valve.Temperature for detecting is in different temperature models
When enclosing, flow control valve uses different apertures, by this control, reaches to distribute the effect of cold medium flux.
In describing the invention, it is to be understood that term " " center ", " on ", D score, " top ", " end ", " interior ",
Orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Invention and simplification describe rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, unless otherwise clearly defined and limited, term " is connected ", " connection " should do broad sense reason
Solve, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is possible to
To be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals
Connection or the interaction relationship of two elements.For the ordinary skill in the art, can understand with concrete condition
Above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
Can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but pass through
Other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above "
Including fisrt feature directly over second feature and oblique upper, or it is special higher than second to be merely representative of fisrt feature level height
Levy.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature second feature just under
Side and obliquely downward, or it is merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means combine this embodiment or show
Specific features, structure, material or feature that example describes are contained at least one embodiment or the example of the present invention.?
In this specification, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, describe
Specific features, structure, material or feature can be with suitably side in any one or more embodiments or example
Formula combines.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not taking off
In the case of the principles and objective of the present invention, these embodiments can be carried out multiple change, revise, replace and modification,
The scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a package AC plant, it is characterised in that including:
Chassis；
For controlling the electric-controlled box of the running status of described package AC plant；
Compressor, described compressor is located on described chassis；
Indoor heat exchanger, described indoor heat exchanger is located on described chassis；
Outdoor heat exchanger, described outdoor heat exchanger is located on described chassis；
Throttling arrangement, described throttling arrangement is connected in series between described indoor heat exchanger and described outdoor heat exchanger；
Heat abstractor, described heat abstractor includes be connected in parallel between described outdoor heat exchanger and described throttling arrangement
One refrigerant flow and the second refrigerant flow, described heat abstractor also includes radiator and flow control member, and described radiator is used
Dispelling the heat in treating radiating piece, described radiator tandem is on described first refrigerant flow, and described flow control member constructs
For described first refrigerant flow and the flow of described second refrigerant flow can be controlled.
Package AC plant the most according to claim 1, it is characterised in that described chassis is provided with for collecting
Stating the condensed water pooling zone of condensed water on indoor heat exchanger, a part for described first refrigerant flow is located at described condensed water
In pooling zone.
Package AC plant the most according to claim 1, it is characterised in that described flow control member includes first-class
Control valve and second flow control valve, described first flow control valve is connected on described first refrigerant flow, and described
Two flow control valves are connected on described second refrigerant flow.
Package AC plant the most according to claim 1, it is characterised in that described radiator and described electric-controlled box phase
Even so that described electric-controlled box is dispelled the heat.
Package AC plant the most according to claim 4, it is characterised in that described radiator is close to described automatically controlled
On the lower surface of box.
6. according to the package AC plant according to any one of claim 1-5, it is characterised in that described chassis is provided with
Spaced apart interior air channel and outer air duct, described indoor heat exchanger is located in described interior air channel, and described outdoor heat exchanger is located at institute
State in outer air duct.
Package AC plant the most according to claim 6, it is characterised in that described electric-controlled box is connected to described endogenous wind
Between road and outer air duct, and described electric-controlled box is spaced apart with described chassis.
8. the control method of a package AC plant, it is characterised in that described package AC plant is according to claim
Package AC plant according to any one of 1-7, the control of described package AC plant comprises the steps:
After described package AC plant is opened, described in detection, treat temperature t of radiating piece；
Described flow control member regulates described first refrigerant flow and the flow of the second refrigerant flow according to temperature t of detection.
The control method of package AC plant the most according to claim 8, it is characterised in that at interval of the time of setting
Temperature t of radiating piece is treated described in detection；
When described temperature t until radiating piece is less than or equal to the first setting value T1, described flow control member reduces described first
The flow of refrigerant flow and the flow of increase the second refrigerant flow；
When described temperature t until radiating piece is more than or equal to the second setting value T2, described flow control member reduces described second
The flow of refrigerant flow and the flow of increase the first refrigerant flow；
Described temperature t until radiating piece meet T1 < t < during T2, the flow of described first refrigerant flow and described second cold
The flow of matchmaker's stream keeps constant.
The control method of package AC plant the most according to claim 8, it is characterised in that when described flow control
Product includes first flow control valve and second flow control valve, and described first flow control valve is connected in series in described
On one refrigerant flow, when described second flow control valve is connected in series on described second refrigerant flow,
Treat described in if be detected that temperature t of radiating piece is less than or equal to the first setting value T1, described first flow control valve
Aperture regulation to O1, the aperture regulation of described second flow control valve to O3；
Described in if be detected that when temperature t of radiating piece is more than or equal to the second setting value T2, described first flow controls
The aperture regulation of valve is to O3, the aperture regulation of described second flow control valve to O1；
Temperature t until radiating piece described in if be detected that meet T1 < t < during T2, described first flow control valve and second
The aperture of flow control valve regulates respectively to O2, wherein, and O1 < O2 < O3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610389188.2A CN105937788B (en) | 2016-06-01 | 2016-06-01 | Package AC plant and its control method |
Applications Claiming Priority (1)
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| CN201610389188.2A CN105937788B (en) | 2016-06-01 | 2016-06-01 | Package AC plant and its control method |
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| CN105937788B CN105937788B (en) | 2019-08-30 |
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| CN109579244A (en) * | 2018-11-28 | 2019-04-05 | 广东美的制冷设备有限公司 | Air conditioner cooling control method and device, air conditioner and storage medium |
| CN110351987A (en) * | 2019-07-15 | 2019-10-18 | 珠海格力电器股份有限公司 | Radiator, controller, photovoltaic electrical equipment and heat dissipating method |
| CN113513789A (en) * | 2021-07-20 | 2021-10-19 | 珠海三友环境技术有限公司 | Integrated water-cooling air conditioner |
| CN114126332A (en) * | 2020-08-26 | 2022-03-01 | 广东美的暖通设备有限公司 | Air conditioning system |
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| Publication number | Publication date |
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| CN105937788B (en) | 2019-08-30 |
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