CN105937788B - Package AC plant and its control method - Google Patents
Package AC plant and its control method Download PDFInfo
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- CN105937788B CN105937788B CN201610389188.2A CN201610389188A CN105937788B CN 105937788 B CN105937788 B CN 105937788B CN 201610389188 A CN201610389188 A CN 201610389188A CN 105937788 B CN105937788 B CN 105937788B
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of package AC plant and its control methods.Package AC plant includes: chassis, electric-controlled box, compressor, throttling set, indoor and outdoor heat exchanger and radiator.Radiator includes the first refrigerant flow and the second refrigerant flow being connected in parallel between outdoor heat exchanger and throttling set, radiator further includes radiator and flow control member, for radiator tandem on the first refrigerant flow, flow control member is configured to the flow of controllable first refrigerant flow and the second refrigerant flow.Package AC plant according to the present invention can treat radiating piece and effectively be radiated, while when the refrigerant temperature for flowing through radiator is too low, can also reduce the cold medium flux for flowing through radiator.Since the refrigerant that radiator flows into refrigerating operaton not yet throttles, the refrigerant in radiator is avoided to be subcooled, to avoid improving system reliability of operation to occur condensation on radiating piece.
Description
Technical field
The present invention relates to heating-cooling equipment fields, more particularly, to a kind of package AC plant and its control method.
Background technique
The electronic control module of frequency changer has that calorific value is big, if the excessively high aging effects to automatically controlled component of temperature
Larger, at present there are mainly two types of the electric-controlled box falling temperature techniques in industry, it is exactly to drive electricity using the wind field of blower that one kind, which is air-cooled,
Control box heat dissipation；Another kind is that refrigerant is cooling, i.e., is introduced into inside electric-controlled box using the lower refrigerant of temperature in system, utilizes refrigerant
Cooling capacity radiate to electric-controlled box.Wherein the first air cooling way noise is big, dust stratification is more in cabinet, and second of refrigerant is cooling
Mode is easy to generate condensed water on electric-controlled box, leads to component wear.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, this hair
A bright purpose is to propose a kind of package AC plant, can be flowed through to avoid due to low temperature refrigerant to cause table in radiating piece
Face leads to the problem of condensation.
It is another object of the present invention to provide a kind of control methods of above-mentioned package AC plant.
Package AC plant according to an embodiment of the present invention, comprising: chassis；For controlling the fortune of the package AC plant
The electric-controlled box of row state；Compressor, the compressor are located on the chassis；Indoor heat exchanger, the indoor heat exchanger are located at
On the chassis；Outdoor heat exchanger, the outdoor heat exchanger are located on the chassis；Throttling set, the throttling set series connection
It is connected between the indoor heat exchanger and the outdoor heat exchanger；Radiator, the radiator include being connected in parallel
The first refrigerant flow and the second refrigerant flow between the outdoor heat exchanger and the throttling set, the radiator also wrap
Include radiator and flow control member, the radiator radiates for treating radiating piece, and the radiator tandem is described the
On one refrigerant flow, the flow control member is configured to can control the stream of first refrigerant flow and second refrigerant flow
Amount.
Package AC plant according to an embodiment of the present invention, by the way that the first refrigerant flow in parallel is arranged in radiator
With the second refrigerant flow, radiator tandem is on the first refrigerant flow, refrigerant stream of the flow control member controllable flow through radiator
Amount, is effectively radiated, while when the refrigerant temperature for flowing through radiator is too low, can also reduce and flow through to treat radiating piece
The cold medium flux of radiator.Since the refrigerant that radiator flows into refrigerating operaton not yet throttles, the refrigerant in radiator is avoided
Supercooling, to avoid improving system reliability of operation to occur condensation on radiating piece.
In some embodiments, the chassis is equipped with the condensed water for collecting the condensed water on the indoor heat exchanger
Pooling zone, a part of first refrigerant flow are located in the condensed water pooling zone.It can further improve radiator as a result,
Heat dissipation effect.
Specifically, the flow control member includes first flow control valve and second flow control valve, the first flow
Control valve is connected on first refrigerant flow, and the second flow control valve is connected on second refrigerant flow.This
Sample, two refrigerant flows control respectively, control more convenient.
In some embodiments, the radiator is connected to radiate to the electric-controlled box with the electric-controlled box.As a result,
The characteristics of all-in-one machine can be made full use of, effectively radiates to electric control element, avoids electric control element temperature is excessively high from causing to damage, from
And further increase the reliability of system.
Specifically, the radiator is tightly attached on the lower surface of the electric-controlled box.Contact of the radiator with electric-controlled box as a result,
Area is big, and heat exchange efficiency is high.Radiator is located to the lower section of electric-controlled box, avoids radiator from interfering electric-controlled box maintenance, and radiate
The position of device is lower, and the row on chassis is also facilitated to set the first refrigerant flow.
In some embodiments, the chassis is equipped with interior air duct and outer air duct, the indoor heat exchanger spaced apart and sets
In the interior air duct, the outdoor heat exchanger is located in the outer air duct.
Specifically, the electric-controlled box is connected between the interior air duct and outer air duct, and the electric-controlled box and the chassis
It is spaced apart.
The control method of package AC plant according to an embodiment of the present invention, the package AC plant are according to the present invention
Package AC plant described in above-described embodiment, the control of the package AC plant include the following steps: in the monoblock type
After air conditioner is opened, the detection temperature t to radiating piece；The flow control member adjusts described the according to the temperature t of detection
The flow of one refrigerant flow and the second refrigerant flow.
The control method of package AC plant according to an embodiment of the present invention, by the way that in parallel the is arranged in radiator
One refrigerant flow and the second refrigerant flow, radiator tandem is on the first refrigerant flow, and flow control member controllable flow is through radiating
The cold medium flux of device will can substantially control within the set range to the temperature of radiating piece, improve package AC plant operation
Reliability.
Specifically, at interval of the setting time detection temperature t to radiating piece；It is small in the temperature t to radiating piece
When being equal to the first setting value T1, the flow control member reduces the flow of first refrigerant flow and increases by the second refrigerant stream
The flow on road；Described when the temperature t of radiating piece is more than or equal to the second setting value T2, the flow control member reduces described the
The flow of two refrigerant flows and the flow for increasing by the first refrigerant flow；Described when the temperature t of radiating piece meets T1 < t < T2,
The flow of the flow of first refrigerant flow and second refrigerant flow remains unchanged.It as a result, can be by the temperature to radiating piece
In (T1, T2) range, it is very accurate to control for degree substantially control.
More specifically, when the flow control member includes first flow control valve and second flow control valve, and described the
Flow control valve is connected in series on first refrigerant flow, and the second flow control valve is connected in series in described second
When on refrigerant flow, if the temperature t to radiating piece detected is less than or equal to the first setting value T1, the first flow
The aperture regulation of control valve is to O1, the aperture regulation of the second flow control valve to O3；If what is detected is described wait radiate
When the temperature t of part is more than or equal to the second setting value T2, the aperture regulation of the first flow control valve to O3, the second flow
The aperture regulation of control valve is to O1；If what is detected is described when the temperature t of radiating piece meets T1 < t < T2, described first-class
The aperture of control valve and second flow control valve is adjusted to O2 respectively, wherein O1 < O2 < O3.Each flow control valve need to only be set
Three aperture gears are set, structure is simpler, and control process is also simple.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of internal structure 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 is control schematic diagram of the flow control member according to an embodiment of the invention with the temperature change of electric-controlled box.
Appended drawing reference:
Package AC plant 100,
Compressor 1, exhaust outlet a, air entry b,
Electric-controlled box 2, outdoor heat exchanger 3, indoor heat exchanger 4, throttling set 5,
It is radiator 6, the first refrigerant flow 61, the second refrigerant flow 62, radiator 63, flow control member 64, first-class
Control valve 641, second flow control valve 642,
Chassis 7, interior air duct 8, outer air duct 9.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Package AC plant 100 according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 2.
Package AC plant 100 according to an embodiment of the present invention, as depicted in figs. 1 and 2, comprising: chassis 7, for controlling
Electric-controlled box 2, compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3, the throttling set 5 of the operating status of package AC plant 100
With radiator 6.
Compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3 are located on chassis 7, and compressor 1 has air entry b and exhaust outlet
a.It should be noted that compressor, electric-controlled box 2, the structure of outdoor heat exchanger 3 and indoor heat exchanger 4 and working principle etc. are
The prior art is just not described in detail here.
In package AC plant 100, chassis 7 is equipped with interior air duct 8 and outer air duct 9, indoor heat exchanger 4 spaced apart and sets
In interior air duct 8, outdoor heat exchanger 3 is located in outer air duct 9, and throttling set 5 is connected in series in indoor heat exchanger 4 and outdoor heat exchange
Between device 3, throttling set 5 and compressor 1, indoor heat exchanger 4 and outdoor heat exchanger 3 constitute coolant circulating system.Optionally, it saves
Flowing device 5 can be capillary, orifice plate, mechanical swelling valve or electric expansion valve etc., be not especially limited here.
Here, for the function of air conditioner, package AC plant 100 can be air conditioner, and package AC plant 100 can also
For single cooler.For the usage mode of air conditioner, package AC plant 100 can be window air conditioner, package AC plant 100
It can also be mobile air-conditioner or other kinds of all-in-one machine.
When package AC plant 100 is air conditioner, package AC plant 100 has refrigeration mode and heating mode.This
When, package AC plant 100 further includes commutation component, and commutation component has air-breathing interface, exhaust port, interior machine interface and outer machine
One of conducting in interface, air-breathing interface and interior machine interface and outer machine interface, exhaust port connect with interior machine interface and outer machine
Another conducting in mouthful.Wherein, air-breathing interface is connected with the air entry b of compressor 1, the exhaust of exhaust port and compressor 1
Mouth a is connected.When package AC plant 100 is in refrigeration mode, air-breathing interface is connected with interior machine interface and exhaust port and outer
The conducting of machine interface.When package AC plant 100 is in heating mode, air-breathing interface and outer machine interface conducting and exhaust port with
Interior machine interface conducting.Preferably, commutation component is four-way valve.In cold-warm type package AC plant, the first of indoor heat exchanger 4
End is connected with interior machine interface, and the first end of outdoor heat exchanger 3 is connected with outer machine interface, and throttling set 5 is connected to indoor heat exchanger 4
Second end and outdoor heat exchanger 3 second end between.
When package AC plant 100 is single cooler, as shown in Fig. 2, package AC plant 100 has refrigeration mode.It is single
In cold mould package AC plant, the first end of indoor heat exchanger 4 is connected with the air entry b of compressor 1, and the of outdoor heat exchanger 3
One end is connected with the exhaust outlet a of compressor 1, and throttling set 5 is connected to the second end and outdoor heat exchanger 3 of indoor heat exchanger 4
Between second end.
In cold-warm type package AC plant and single cold type package AC plant, radiator 6 is connected in series indoors
Between the second end of heat exchanger 4 and the second end of outdoor heat exchanger 3.Therefore to simplify description, hereafter with Dan Leng shown in Fig. 2
Illustrate the structure of package AC plant 100 for type air conditioner.
Referring to Figures 1 and 2, radiator 6 includes first be connected in parallel between outdoor heat exchanger 3 and throttling set 5
Refrigerant flow 61 and the second refrigerant flow 62, radiator 6 further include radiator 63 and flow control member 64, radiator 63 with it is whole
Being connected in body formula air conditioner 100 to radiating piece, radiator 63 radiates for treating radiating piece, and radiator 63 is connected on the
On one refrigerant flow 61, flow control member 64 is configured to the flow of controllable first refrigerant flow 61 and the second refrigerant flow 62.
That is, radiator 6 is connected in series between indoor heat exchanger 4 and outdoor heat exchanger 3, coolant circulating system
Middle refrigerant can flow through the first refrigerant flow 61 and the second refrigerant flow 62.Radiator 63 is connected on the first refrigerant flow 61,
Refrigerant flows through radiator 63 to absorb the heat to radiating piece.
The setting of first refrigerant flow 61, the second refrigerant flow 62 and flow control member 64 can preferably distribute two
The cold medium flux of flow path, and can be according to the temperature of radiating piece, air conditioning usage time or using season situations such as, make adjusting
Variation.
In the example in figure 2, outdoor heat exchanger 3 is flowed into after discharge from compressor 1 when high pressure gaseous refrigerant, it is cold
Matchmaker's exothermic condensation in outdoor heat exchanger 3, which is formed in low temperature, presses liquid refrigerants, and refrigerant is discharged into radiator 6 later.Flow into the
The refrigerant of one refrigerant flow 61 absorbs heat evaporation when flowing through radiator 63, the refrigerant of latter two flow path converge and flow to throttling set
5 with reducing pressure by regulating flow, and the low-temp low-pressure liquid refrigerant stream after decompression enters the evaporation endothermic of indoor heat exchanger 4, to reduce room temperature,
Refrigerant 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, it needs to treat radiating piece when entering summer to radiate, the first refrigerant flow 61 can be tuned up
Flow, treat the caloric receptivity of radiating piece to improve.It does not need to treat radiating piece heat dissipation when entering winter, the can be reduced at this time
The flow of one refrigerant flow 61, to reduce the caloric receptivity for treating radiating piece.
Here, radiator 63 can radiate to the 100 biggish component of internal heat generation amount of package AC plant, to radiating piece
Type is not specifically limited.
It should be noted that the heat of heat generating components is not easy to disperse under summer muggy weather, therefore radiator 63 is set
It sets primarily to heat spreading function can be played in hot weather, therefore air conditioner is usually just to need to tune up the in refrigeration
The flow of one refrigerant flow 61.
In some materials disclosed in the relevant technologies, heat dissipation heat exchanger is usually the pipeline in series or in parallel after throttling
On, by taking single cooler as an example, the relevant technologies material is usually that heat dissipation heat exchanger is connected between throttling set and indoor heat exchanger.
But the refrigerant temperature after throttling is too low, and condensed water is easily formed on to radiating piece, and when radiator is used to radiate electric-controlled box, electricity
Control box is easy to get wet and leads to electronic control module failure, influences automatically controlled service life.Also therefore, the relevant technologies are not answered extensively
With.
And in present patent application, radiator 63 is equivalent on the refrigerant pipeline before being connected in series in throttling, refrigerating operaton
When will not be too low from the temperature of refrigerant that outdoor heat exchanger 3 is discharged, avoid in the Surface Creation condensed water to radiating piece.Namely
It says, in a refrigeration cycle, refrigerant passes through throttling set 5 after first flowing through radiator 6, flows to indoor heat exchanger again later
4.Due to throttling set 5 have the function of cooling, refrigerant absorb heat in radiator 6 after again by 5 heat release of throttling set, it is ensured that
The refrigerant temperature flowed into indoor heat exchanger 4 is lower, improves efficiency.
Package AC plant 100 according to an embodiment of the present invention, by the way that the first refrigerant in parallel is arranged in radiator 6
Flow path 61 and the second refrigerant flow 62, radiator 63 are connected on the first refrigerant flow 61,64 controllable flow of flow control member warp
The cold medium flux of radiator 63 is effectively radiated to treat radiating piece, while when the refrigerant temperature mistake for flowing through radiator 6
When low, the cold medium flux for flowing through radiator 63 can also be reduced.Since the refrigerant that radiator 63 flows into refrigerating operaton not yet saves
Stream, avoids the refrigerant in radiator 63 from being subcooled, to avoid improving the reliable of system operation to occur condensation on radiating piece
Property.
In embodiments of the present invention, interior air duct 8 and outer air duct 9 are spaced apart on package AC plant 100, and interior air duct 8 can be with
Interior is connected with to indoor absorption refrigeration, and outer air duct 9 can be connected to outdoor heat release with outdoor environment.
In some embodiments, electric-controlled box 2 is connected between interior air duct 8 and outer air duct 9, can conveniently inside and outside component circuitry be connected
It connects.Compressor 1 is also provided between interior air duct 8 and outer air duct 9 simultaneously, these bulky parts are arranged in interior air duct 8 and exogenous wind
Between road 9, is conducive to be spaced interior outer air duct, improves air-conditioning heat exchange efficiency.
In some embodiments, radiator 63 is connected with electric-controlled box 2 to radiate to electric-controlled box 2, in this way, can be sufficiently sharp
The characteristics of with all-in-one machine, effectively radiates to electric control element, avoids electric control element temperature is excessively high from causing to damage, thus further
The reliability of raising system.
In a specific example, package AC plant 100 is a kind of cold transducer air conditioning of window list, the integral air conditioner
2 calorific value of electric-controlled box of device 100 is larger, and especially the heat of electric-controlled box 2 is not easy to scatter under high temperature environment, therefore by electric-controlled box 2
It is connected to radiator 63, can controllably carry out the heat dissipation of electric-controlled box 2, it is ensured that the cold transducer air conditioning electronic control module of window list is good
Heat dissipation effect.
Specifically, electric-controlled box 2 is located at the top on chassis 7 at interval, in this way, 2 surrounding of electric-controlled box is divulged information, using air
It circulates to reinforce the heat dissipation of electric-controlled box 2.
More specifically, radiator 63 is tightly attached on the lower surface of electric-controlled box 2, the contact of such radiator 63 and electric-controlled box 2
Area is big, and heat exchange efficiency is high.Radiator 63 is located to the lower section of electric-controlled box 2, avoids radiator 63 that electric-controlled box 2 is interfered to repair, and
And the position of radiator 63 is lower, and the row on chassis 7 is also facilitated to set the first refrigerant flow 61.
In one particular embodiment of the present invention, radiator 63 can be used various microminiatures disclosed in the prior art and change
The structure of hot device, is not construed as limiting here.Preferably, radiator 63 is configured to radiator coil tube, so that the structure of radiator 63
Simply.
In some embodiments, chassis 7 is equipped with and collects for collecting the condensed water of the condensed water on indoor heat exchanger 4
At least part in area, the first refrigerant flow 61 is located in condensed water pooling zone.
For the scheme that heat dissipation heat exchanger is directly connected between condensator outlet and restricting element, it will throttle
Preceding refrigerant flows through radiator 63, good cooling effect when refrigeration, and will not generate condensed water, but the refrigerant come out due to condenser
Temperature is relatively high, therefore cooling effect does not reach perfect condition.
And the refrigerant before throttling is passed through to radiator 63 behind condensed water pooling zone, and it is absorbed heat using condensed water, it can be into one
Step improve radiator 63 heat dissipation effect, and refrigerant temperature will not be too low and cause to generate condensation on to radiating piece.
Specifically, when air-conditioning system refrigerating operaton, condensed water can be generated on indoor heat exchanger 4.With the increasing of condensed water
More, condensed water is slowly flowed away along chassis 7 to outer air duct 9.First refrigerant flow 61 collects by the condensed water above chassis 7
Area, the lower condensed water of refrigerant and temperature in the first refrigerant flow 61 occur heat exchange, make cold in the first refrigerant flow 61
The temperature of matchmaker further decreases, and refrigerant temperature is up to 5 DEG C or more even lower than at the second end of outdoor heat exchanger 4.By radiator 63
It is connected on the first refrigerant flow 61, due to further decreasing for refrigerant temperature, radiating piece can be treated and preferably radiated.
Optionally, chassis 7 be equipped with hot well, hot well between interior air duct 8 and outer air duct 9,
A part of 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 be connected in series on the first refrigerant flow 61, second flow control
Valve 642 processed is connected in series on the second refrigerant flow 62.In this way, two refrigerant flows control respectively, control more convenient.
Certainly, the structure of the flow control member 64 of the embodiment of the present invention is without being limited thereto, for example, flow control member 64 can also be
Three-way magnetic valve, three-way magnetic valve are located at the refrigerant import and export of radiator 6, and two valve ports of three-way magnetic valve are respectively with
One refrigerant flow 61 is connected with the second refrigerant flow 62, the third valve port of three-way magnetic valve and the main pipeline of coolant circulating system
It is connected, three-way magnetic valve can control the cold medium flux for flowing through the first refrigerant flow 61 and the second refrigerant flow 62 simultaneously.Alternatively, stream
Amount control piece 64 may be alternatively provided in radiator 63 flow for controlling the refrigerant for flowing through radiator 63.
In a specific example, as shown in Fig. 2, the first refrigerant flow 61 and the second refrigerant flow 62 are connected in parallel, the
First flow control valve 641 and second flow control valve 642 are respectively equipped on one refrigerant flow 61 and the second refrigerant flow 62.The
One refrigerant flow 61 connects the second end of outdoor heat exchanger 3 with 62 one end of the second refrigerant flow, and the other end connects throttling set 5.
The radiator 63 of electric-controlled box 2 is connected on the first refrigerant flow 61, and is located at 2 lower section of electric-controlled box, and closely coupled with it.It is automatically controlled
Box 2 is between interior air duct 8 and outer air duct 9, and outdoor heat exchanger 3, indoor heat exchanger 4, compressor 1 are respectively positioned on chassis 7, and
Outdoor heat exchanger 3 and indoor heat exchanger 4 are wrapped in by outer air duct 9 and interior air duct 8 respectively.
This air-conditioning system makes full use of the design feature of package AC plant 100, and the first refrigerant flow 61 flows through chassis
7, and sufficiently exchange heat with condensed water.Two flow paths are equipped with flow control valve simultaneously, to distribute the cold medium flux of two flow paths, this
Sample can achieve better electronic control module heat dissipation effect.
The control method of package AC plant according to an embodiment of the present invention, this method institute are described below with reference to Fig. 1-Fig. 4
The air conditioner of adaptation is the package AC plant 100 according to the above embodiment of the present invention, hereinafter to package AC plant
100 structure does not repeat.
The control method of package AC plant according to an embodiment of the present invention, includes the following steps:
After the unlatching of package AC plant 100, the temperature t to radiating piece is detected；
Flow control member 64 adjusts the flow of the first refrigerant flow 61 and the second refrigerant flow 62 according to the temperature t of detection.
The control method of package AC plant according to an embodiment of the present invention as a result, can by the temperature of radiating piece substantially
Control within the set range, improves package AC plant reliability of operation.
In some embodiments, after the unlatching of package AC plant 100, the temperature to radiating piece is detected at interval of setting time
Spend t.
Specifically, when the temperature t of radiating piece is less than or equal to the first setting value T1, it is cold that flow control member 64 reduces first
The flow of matchmaker's flow path 61 and the flow for increasing by the second refrigerant flow 62；
When the 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
62 flow and the flow for increasing by the first refrigerant flow 61；
When the temperature t of radiating piece meets T1 < t < T2, the flow of the first refrigerant flow 61 and the second refrigerant flow 62
Flow remains unchanged.
In this way, will can substantially control in (T1, T2) range to the temperature of radiating piece, it is very accurate to control.
In certain embodiments, as shown in Fig. 2, 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 control valve 642
It is connected in series on the second refrigerant flow 62.
After air-conditioning is opened, as shown in figure 4, if the temperature t to radiating piece detected is 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 the temperature t of radiating piece were 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 when the temperature t of radiating piece met T1 < t < T2, first flow control valve 641 and second flow control valve 642
Aperture be adjusted to O2 respectively, wherein O1 < O2 < O3.
In this way, three aperture gears need to be only arranged in each flow control valve, structure is simpler, and control process is also simple.
By taking Fig. 3 and a specific embodiment shown in Fig. 4 as an example, one the step of 100 control process of package AC plant: opening
Machine operation, this step refer to conventional refrigerating operaton.
After air conditioner booting, the aperture of first flow control valve 641 and second flow control valve 642 is O2.
Start timing since booting in air conditioner, when running between up to after m1, progress step 2: detect the temperature of electronic control module
t。
Later, it carries out step 3: judging the range intervals where the temperature t of the electronic control module detected, it is then first-class
Control valve 641 and second flow control valve 642 select different open according to the range intervals where the temperature t of electronic control module
Degree.
After the aperture regulation of first flow control valve 641 and second flow control valve 642, step 4: air-conditioning control is carried out
Aperture operation after making this adjusting, and after adjusting reclocking, when running between up to after m2, be back to step 2, i.e.,
Runing time expires detection adjusting again after m2 after adjustment, and according to this process repetitive cycling, until air-conditioning shuts down.
In the above-described embodiments, when temperature t≤T1 of electronic control module, first flow control valve 641 and second flow control
642 aperture of valve is adjusted to O1 and O3 respectively；As T1 < T < T2, first flow control valve 641 and second flow control valve 642 are opened
Degree is adjusted to O2 respectively；As T >=T2, the aperture of first flow control valve 641 and second flow control valve 642 is adjusted to O3 respectively
And O1；Wherein, O3 > O2 > O1, T2 > T1.
For different temperature ranges, flow control valve selects different apertures, first is that in order to preferably carry out automatically controlled mould
The heat dissipation of block is avoided being subcooled or be overheated；Two allow for the operation that refrigeration system can be stable.
The control method of air conditioner according to an embodiment of the present invention, is controlled with flow control valve, and according to examining in electric-controlled box 2
The temperature of the electronic control module measured adjusts the aperture of flow control valve.Different temperature ranges is in for the temperature detected
When, flow control valve uses different apertures, by this control, achievees the effect that distribute cold medium flux.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection, be also possible to electricity
Connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean combine the embodiment or
Example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.At this
In specification, schematic expression of the above terms be may not refer to the same embodiment or example.Moreover, description is specific
Feature, structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (7)
1. a kind of package AC plant characterized by comprising
Chassis；
For controlling the electric-controlled box of the operating status of the package AC plant；
Compressor, the compressor are located on the chassis；
Indoor heat exchanger, the indoor heat exchanger are located on the chassis；
Outdoor heat exchanger, the outdoor heat exchanger are located on the chassis；
Throttling set, the throttling set are connected in series between the indoor heat exchanger and the outdoor heat exchanger；
Radiator, the radiator include first be connected in parallel between the outdoor heat exchanger and the throttling set
Refrigerant flow and the second refrigerant flow, the radiator further include radiator and flow control member, the radiator for pair
It radiates to radiating piece, on first refrigerant flow, the flow control member is configured to controllably the radiator tandem
The flow of first refrigerant flow and second refrigerant flow is made, the radiator is connected with the electric-controlled box to described
Electric-controlled box radiates；Wherein,
The chassis is equipped with interior air duct and outer air duct spaced apart, and the indoor heat exchanger is located in the interior air duct, described
Outdoor heat exchanger is located in the outer air duct, and the electric-controlled box is connected between the interior air duct and outer air duct, and described automatically controlled
Box is spaced apart with the chassis.
2. package AC plant according to claim 1, which is characterized in that the chassis is equipped with for collecting the room
The condensed water pooling zone of condensed water on interior heat exchanger, a part of first refrigerant flow are located at the condensed water pooling zone
It is interior.
3. package AC plant according to claim 1, which is characterized in that the flow control member includes first flow control
Valve processed and second flow control valve, the first flow control valve are connected on first refrigerant flow, the second flow
Control valve is connected on second refrigerant flow.
4. package AC plant according to claim 1, which is characterized in that the radiator is tightly attached to the electric-controlled box
On lower surface.
5. a kind of control method of package AC plant, which is characterized in that the package AC plant is according to claim 1-4
Any one of described in package AC plant, the control of the package AC plant includes the following steps:
After package AC plant unlatching, the detection temperature t to radiating piece；
The flow control member adjusts the flow of first refrigerant flow and the second refrigerant flow according to the temperature t of detection.
6. the control method of package AC plant according to claim 5, which is characterized in that detected at interval of setting time
The temperature t to radiating piece；
Described when the temperature t of radiating piece is less than or equal to the first setting value T1, it is cold that the flow control member reduces described first
The flow of matchmaker's flow path and the flow for increasing by the second refrigerant flow；
Described when the temperature t of radiating piece is more than or equal to the second setting value T2, it is cold that the flow control member reduces described second
The flow of matchmaker's flow path and the flow for increasing by the first refrigerant flow；
Described when the temperature t of radiating piece meets T1 < t < T2, the flow of first refrigerant flow and the second refrigerant stream
The flow on road remains unchanged.
7. the control method of package AC plant according to claim 5, which is characterized in that when the flow control member packet
First flow control valve and second flow control valve are included, and the first flow control valve is connected in series in the first refrigerant stream
On the road, when the second flow control valve is connected in series on second refrigerant flow,
If the temperature t to radiating piece detected is less than or equal to the first setting value T1, the first flow control valve
Aperture regulation is to O1, the aperture regulation of the second flow control valve to O3；
If detect it is described when the temperature t of radiating piece be more than or equal to the second setting value T2 when, the first flow control valve
Aperture regulation to O3, the aperture regulation of the second flow control valve to O1；
If what is detected described when the temperature t of radiating piece meets T1 < t < T2, the first flow control valve and second flow
The aperture of control valve is adjusted to O2 respectively, wherein O1 < O2 < O3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389188.2A CN105937788B (en) | 2016-06-01 | 2016-06-01 | Package AC plant and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389188.2A CN105937788B (en) | 2016-06-01 | 2016-06-01 | Package AC plant and its control method |
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| CN105937788A CN105937788A (en) | 2016-09-14 |
| CN105937788B true CN105937788B (en) | 2019-08-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110351987B (en) * | 2019-07-15 | 2024-02-23 | 珠海格力电器股份有限公司 | Radiator, controller, photovoltaic electric equipment and radiating method |
| CN116887567A (en) * | 2020-08-26 | 2023-10-13 | 广东美的暖通设备有限公司 | Electric control box and air conditioning system |
| 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 |
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| CN105937788A (en) | 2016-09-14 |
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