CN105333639B - Multi-line system and its outdoor unit component, control method - Google Patents
Multi-line system and its outdoor unit component, control method Download PDFInfo
- Publication number
- CN105333639B CN105333639B CN201410387748.1A CN201410387748A CN105333639B CN 105333639 B CN105333639 B CN 105333639B CN 201410387748 A CN201410387748 A CN 201410387748A CN 105333639 B CN105333639 B CN 105333639B
- Authority
- CN
- China
- Prior art keywords
- outdoor unit
- interface
- unit component
- outdoor
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of multi-line system and its outdoor unit component, control methods.Outdoor unit component includes：Compressor, commutation component, outdoor heat exchanger, control valve and the first shut-off valve, compressor have exhaust outlet and gas returning port.The component that commutates includes first to fourth interface, and first interface is connected with exhaust outlet, and the 4th interface is connected with gas returning port, and second interface is suitable for combining with indoor unit and be connected.The first end of outdoor heat exchanger and third orifice.Control valve is connected with the second end of outdoor heat exchanger.First shut-off valve respectively with the first end of outdoor heat exchanger and third orifice.Outdoor unit component according to the ... of the embodiment of the present invention can reduce the frequency of compressor while meeting cooling and warming demand, system operation efficiency is improved to reduce operating cost, low-temperature heating ability can also be effectively promoted, the defrost time is reduced, promotes users'comfort.
Description
Technical field
The present invention relates to refrigerating fields, more particularly, to a kind of multi-line system and its outdoor unit component, control method.
Background technology
The multi-line system of existing outer machine parallel connection, total energy effect when running are the sum of the operational energy efficiency of the outer machine of separate unit,
If the interior non-oepration at full load of machine, outer machine certain module can stop, the heat exchanger for stopping outer machine does not participate in system operation, is in
Idle waste state.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of outdoor unit component for multi-line system, can improve
Multi-line system operational energy efficiency is to reduce operating cost.
It is another object of the present invention to propose a kind of multi-line system with above-mentioned outdoor unit component.
Another object of the present invention is to propose a kind of multi-line system.
A further object of the present invention is to propose a kind of control method of above-mentioned multi-line system.
Outdoor unit component according to the ... of the embodiment of the present invention for multi-line system, the multi-line system includes indoor unit
Combination, the outdoor unit component include：Compressor, the compressor have exhaust outlet and gas returning port；Commutate component, the commutation
Component includes first to fourth interface, and the first interface is led with one of in the second interface and the third interface
Logical, the 4th interface is connected with another in the second interface and the third interface, the first interface with it is described
Exhaust outlet is connected, and the 4th interface is connected with the gas returning port, and the second interface is suitable for combining with the indoor unit and be connected；
Outdoor heat exchanger, the first end of the outdoor heat exchanger and the third orifice；Control valve, the control valve and the room
The second end of external heat exchanger is connected；First shut-off valve, first shut-off valve respectively with the first end of the outdoor heat exchanger and
The third orifice.
Outdoor unit component according to the ... of the embodiment of the present invention for multi-line system, by being equipped with the first shut-off valve, and
One shut-off valve is connected with outdoor heat exchanger and third interface, therefore when outdoor unit component is applied in multi-line system, not only
The frequency of compressor can be reduced while meeting cooling and warming demand, improve system operation efficiency to reduce operating cost,
Low-temperature heating ability can also be effectively promoted simultaneously, reduces the defrost time, promote users'comfort.
In addition, the outdoor unit component according to the above embodiment of the present invention for multi-line system can also be with following attached
The technical characteristic added：
Preferably, the commutation component is four-way valve.
Optionally, the control valve is electric expansion valve.
Optionally, the control valve is solenoid valve.
Multi-line system according to the ... of the embodiment of the present invention, including：Indoor unit combines；It is multiple according to the above embodiment of the present invention
Outdoor unit component, the multiple outdoor unit component combined respectively with the indoor unit be connected, the multiple outdoor unit component
First shut-off valve communicates with each other.
Multi-line system according to the ... of the embodiment of the present invention, by making the first shut-off valve of multiple outdoor unit components connect each other
It is logical, to a portion operation in multiple outdoor unit components and remaining be in standby when, pass through and control standby shape
The operating status of control valve and compressor in the outdoor unit component of state, not only can while meeting cooling and warming demand,
The frequency of compressor is reduced, improves system operation efficiency to reduce operating cost, while can also effectively promote low-temperature heating energy
Power reduces the defrost time, promotes users'comfort.
Multi-line system according to the ... of the embodiment of the present invention, including：Indoor unit combines and multiple outdoor unit components, the outdoor
Thermomechanical components include：Compressor, the compressor have exhaust outlet and gas returning port；Commutate component, and the commutation component includes first
To the 4th interface, the first interface and conducting one of in the second interface and the third interface, the described 4th
Interface is connected with another in the second interface and the third interface, and the first interface is connected with the exhaust outlet,
4th interface is connected with the gas returning port, and the second interface is combined with the indoor unit to be connected；Outdoor heat exchanger, it is described
The first end of outdoor heat exchanger and the third orifice；Control valve, the control valve and the second of the outdoor heat exchanger
End is connected；The multiple outdoor unit component is combined with the indoor unit respectively to be connected, the room of the multiple outdoor unit component
The first end of external heat exchanger communicates with each other.
Multi-line system according to the ... of the embodiment of the present invention, first of outdoor heat exchanger by making multiple outdoor unit components
End communicates with each other, in multiple outdoor unit components a portion operation and remaining be in standby when, pass through control
The operating status of control valve and compressor in the outdoor unit component of standby mode processed can not only meet cooling and warming demand
While, the frequency of compressor is reduced, improves system operation efficiency to reduce operating cost, while can also effectively promote low temperature
Heating capacity reduces the defrost time, promotes users'comfort.
The control method of multi-line system according to the ... of the embodiment of the present invention, the multi-line system are above-mentioned according to the present invention
The multi-line system of embodiment, control method include the following steps：S1：Whether each outdoor unit component of detection runs, and
Detect the operational mode of the outdoor unit component of operation；S2：When the outdoor unit component of detection operation is in refrigerating operaton
When, the control valve controlled in the standby outdoor unit component is opened so that from the compressor of the outdoor unit component of operation
The refrigerant of middle outflow is flowed into the outdoor heat exchanger of the standby outdoor unit component to increase the heat-transfer surface in condensation process
Product；When the outdoor unit component of detection operation is in heating operation, the control in the standby outdoor unit component is controlled
Valve is opened so that the outdoor heat exchange of the standby outdoor unit component is flowed into from the refrigerant of indoor unit combination discharge
To increase the heat exchange area in evaporation process in device；When the outdoor unit component of detection operation is in Defrost operation, control waits for
Compressor in the outdoor unit component of machine is opened, control valve is closed, and controls the commutation group of the standby outdoor unit component
The first interface in part and third interface conducting and the second interface and the 4th interface conducting, from standby and
The refrigerant of compressor discharge in the outdoor unit component of operation is all flowed into the outdoor unit component of operation
To reduce the defrost time in the outdoor heat exchanger.
The control method of multi-line system according to the ... of the embodiment of the present invention, by control standby mode outdoor unit component in
Control valve and compressor operating status, not only can reduce the frequency of compressor while meeting cooling and warming demand,
System operation efficiency is improved to reduce operating cost, while can also effectively promote low-temperature heating ability, the defrost time is reduced, carries
Rise users'comfort.
In further embodiment of the present invention, each outdoor unit component further includes that the neighbouring outdoor heat exchanger is set
The outdoor fan set is opened by controlling the control valve of the standby outdoor unit component to increase heat exchange in step s 2
When area, controlling the rotating speed of the outdoor fan in the outdoor unit component of operation reduces to reduce noise.
Preferably, the commutation component is four-way valve, and the control valve is solenoid valve or electric expansion valve.
Description of the drawings
Fig. 1 is the schematic diagram according to the outdoor unit component of the embodiment of the present invention；
Fig. 2 is the schematic diagram according to the multi-line system of the embodiment of the present invention；
Fig. 3 is that refrigerant when being freezed according to the multi-line system of the embodiment of the present invention flows to schematic diagram；
Fig. 4 is that refrigerant when being heated according to the multi-line system of the embodiment of the present invention flows to schematic diagram；
Refrigerant when Fig. 5 is the multi-line system defrost according to the embodiment of the present invention flows to schematic diagram.
Reference numeral：
Multi-line system 100,
The outer thermomechanical components 2b of outdoor unit component 2, the first outdoor unit component 2a, second Room, compressor 20, exhaust outlet a, gas returning port
B, it commutates component 21, first interface c, second interface d, third interface e, the 4th interface f, outdoor heat exchanger 22, control valve 23, the
One shut-off valve 24, the second shut-off valve 25, third shut-off valve 26, common-use tunnel 3.
Specific implementation mode
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 for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ",
The orientation or positional relationship of the instructions such as " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply 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 this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The outdoor unit according to the ... of the embodiment of the present invention for multi-line system 100 is described in detail below with reference to Fig. 1-Fig. 5
Part 2.The multi-line system 100 includes indoor unit combination (not shown) and multiple outdoor unit components 2, multiple outdoor unit components 2
It combines and is connected with indoor unit respectively, wherein indoor unit combination includes multiple indoor unit components, and each indoor unit component includes interior
The elements such as heat exchanger, restricting element.Multiple outdoor unit components 2 are combined with indoor unit to be connected by highway, that is to say, that every
Any one indoor unit component during a outdoor unit component 2 is combined with indoor unit is connected to, and is flowed out from each indoor unit component
Refrigerant can enter in any one outdoor unit component 2, therefore when multi-line system 100 works, an indoor unit component
An outdoor unit component 2 can be corresponded to, multiple outdoor unit components 2 can also be corresponded to.
As shown in Figure 1, outdoor unit component 2 according to the ... of the embodiment of the present invention includes：Compressor 20, commutation component 21, outdoor
Heat exchanger 22, control valve 23 and the first shut-off valve 24, wherein compressor 20 has exhaust outlet a and gas returning port b, needs to illustrate
It is that structure and operation principle of compressor 20 etc. are the prior art, are just not described in detail here.
The component 21 that commutates includes first interface c, second interface d, third interface e and the 4th interface f, first interface c and the
It is connected one of in two interface d and third interface e, another in the 4th interface f and second interface d and third interface e
Conducting, first interface c are connected with exhaust outlet a, and the 4th interface f is connected with gas returning port b, and second interface d is suitable for combining with indoor unit
It is connected.In refrigeration mode and defrosting mode, first interface c and third interface e conductings and second interface d and the 4th interface f are led
Logical, in heating mode, first interface c and second interface d conductings and third interface e and the 4th interface f are connected.
Preferably, commutation component 21 is four-way valve, so that the structure of commutation component 21 is simple.It will be understood
It is that the structure of commutation component 21 is without being limited thereto, commutation component 21 can also be including first pipe to the 4th pipeline, and first pipe is extremely
4th pipeline joins end to end successively, and the first solenoid valve is in series in first pipe, and second solenoid valve is in series on second pipe, the
It is in series with third solenoid valve on three pipelines, the 4th solenoid valve, the connection of first pipe and second pipe are in series on the 4th pipeline
Place limits first interface c, and the junction of first pipe and the 4th pipeline limits second interface d, the 4th pipeline and third pipe
The junction in road limits the 4th interface f, and the junction of third pipeline and second pipe limits third interface e, the first electromagnetism
Valve and third solenoid valve are turned on and off simultaneously, and second solenoid valve and the 4th solenoid valve are turned on and off simultaneously.
The first end of outdoor heat exchanger 22 is connected to third interface e.The second end phase of control valve 23 and outdoor heat exchanger 22
Even.Optionally, control valve 23 is electric expansion valve or solenoid valve.First shut-off valve 24 first end with outdoor heat exchanger 22 respectively
It is connected to third interface e.
It needs to illustrate, each outdoor unit component 2 further includes the second shut-off valve 25 and third shut-off valve 26, control
Valve 23, which is combined by the second shut-off valve 25 with indoor unit, to be connected, i.e., control valve 23 is connected on the second shut-off valve 25 and outdoor heat exchanger
Between 22, third shut-off valve 26 is connected with second interface d, and each outdoor unit component 2 is ended by the second shut-off valve 25 and third
Valve 26 is combined with indoor unit to be connected.
When applying outdoor unit component 2 according to the ... of the embodiment of the present invention in multi-line system 100, as shown in Fig. 2, more
First shut-off valve 24 of a outdoor unit component 2 communicates with each other, in other words, 22 He of outdoor heat exchanger in each outdoor unit component 2
The e connections of third interface, the third interface e of multiple outdoor unit components 2 communicate with each other, the outdoor heat exchanger of multiple outdoor unit components 2
22 first end communicates with each other.Specifically, as shown in Figure 1, the first shut-off valve 24 of multiple outdoor unit components 2 passes through common-use tunnel
3 connections.
For ease of description, below first to the multi-line system 100 with outdoor unit component 2 according to the ... of the embodiment of the present invention
It is described.In being described below the present invention, it is two with outdoor unit component 2 and is divided into the first outdoor unit component 2a and second
To multi-line system 100 for thermomechanical components 2b is standby outside outdoor unit component 2b, the first outdoor unit component 2a operations and second Room
Control method illustrates.
Specifically, the operational mode of the first outdoor unit component 2a is divided into following three kinds of situations：The first situation is such as Fig. 3
Shown, the first outdoor unit component 2a is in refrigerating operaton, then opens the control valve 23 of the outer thermomechanical components 2b of second Room so that the first Room
The control valve 23 of outer thermomechanical components 2a and the outer thermomechanical components 2b of second Room are in opening state, as indicated by the arrows in fig. 3, from first
The high-pressure gaseous refrigerant that the compressor 20 of outdoor unit component 2a is discharged is divided into two parts, a part of refrigerant meeting by third interface e
It enters in the outdoor heat exchanger 22 of the outer thermomechanical components 2b of second Room and is condensed, another part refrigerant enters the first outdoor unit
It is condensed in the outdoor heat exchanger 22 of part 2a, the outdoor heat exchanger of thermomechanical components 2b outside the first outdoor unit component 2a and second Room
The refrigerant of 22 discharges enters in indoor unit combination, from refrigerant the changing by the first outdoor unit component 2a of indoor unit combination discharge
It is returned to component 21 in the compressor 20 of first outdoor unit component 2a.
In that case, it for the compressor 20 of the first outdoor unit component 2a, is equivalent to it and is configured with one more
Big condenser (outdoor heat exchanger 22 of condenser=first and the second outdoor heat exchanger 22) so that multi-line system 100 is run
Efficiency higher.Simultaneously because increasing the outdoor heat exchanger 22 of the outer thermomechanical components 2b of second Room in condensation process so that condensation process
In heat exchange area increase, can control in a more reasonable range and be unlikely to excessively high to system high pressure pressure, and
It remains to meet user's refrigerating capacity demand when compressor 20 suitably reduces frequency.
The second situation is then to open the second outdoor unit as shown in figure 4, the first outdoor unit component 2a is in heating operation
The control valve 23 of part 2b is so that the control valve 23 in the first outdoor unit component 2a and the outer thermomechanical components 2b of second Room is in open shape
State.As shown by the arrows in figure 4, the high-pressure gaseous refrigerant being discharged from the compressor 20 of the first outdoor unit component 2a passes through the first Room
The commutation component 21 of outer thermomechanical components 2a enters in indoor unit combination, and the refrigerant that condensation process is completed in machine combination indoors can be same
When enter in the outdoor heat exchanger 22 of the first outdoor unit component 2a and the outdoor heat exchanger 22 of the outer thermomechanical components 2b of second Room and carry out
Evaporation process, the outdoor heat exchanger 22 of thermomechanical components 2b is discharged outside the outdoor heat exchanger 22 of the first outdoor unit component 2a and second Room
Refrigerant be expelled back into the compressor 20 of the first outdoor unit component 2a, to increase the heat exchange area in evaporation process, effectively
Improve the heating capacity especially low-temperature heating capacity of multi-line system 100.
The third situation is then only to open the second outdoor unit as shown in figure 5, the first outdoor unit component 2a is in Defrost operation
Compressor 20 in component 2b, the control valve 23 in the outer thermomechanical components 2b of second Room are closed, the first outdoor unit component 2a
In control valve 23 it is in the open state, the first outdoor unit component 2a commutation component 21 in first interface c and third interface e
Conducting and second interface d and the 4th interface f conductings, first interface c in the commutation component 21 of the outer thermomechanical components 2b of second Room and the
Three interface e conductings and second interface d and the 4th interface f conductings, as illustrated by arrows 5, from the first outdoor unit component 2a's
The high-pressure gaseous refrigerant that compressor 20 is discharged and the high-pressure gaseous refrigerant being discharged from the compressor 20 of thermomechanical components 2b outside second Room
It is drained into the outdoor heat exchanger 22 of the first outdoor unit component 2a and exchanges heat respectively, changed from the outdoor of the first outdoor unit component 2a
The refrigerant that hot device 22 is discharged is drained into indoor unit combination and is evaporated, and is divided into two parts from the refrigerant of indoor unit combination discharge,
A part returns in the compressor 20 of the first outdoor unit component 2a, and another part returns to the compressor 20 of the outer thermomechanical components 2b of second Room
In.
In other words, in this case, be the equal of that defrost is carried out to an outdoor heat exchanger 22 with two compressors 20,
The defrost time can be greatly reduced, improve users'comfort.
It needs to illustrate, when the first outdoor unit component 2a is in standby and thermomechanical components 2b is in outside second Room
When operating status, under different operational modes, the principle of the control method of multi-line system 100 is identical as above-mentioned principle, this
In be just not described in detail.
It also needs to illustrate simultaneously, outdoor unit component 2 can also be three or three or more, when only wherein one
Part outdoor unit component 2 is in operation and remaining outdoor unit component 2 is when being in standby, at the outdoor unit component 2 of operation
When different operational modes, the control in one or several outdoor unit components 2 being in standby can be controlled as needed
The operating status of valve 23 and compressor 20, specifically, when the outdoor unit component 2 of operation is in refrigerating operaton or heating operation,
Control valve 23 in the outdoor unit component 2 of one or several standby modes is in the open state, to increase condensation process or evaporation
Heat exchange area in the process.When the outdoor unit component 2 of operation is in defrosting mode, the outdoor unit of one or several standby modes
Compressor 20 in component 2 is in the open state, to carry out defrost to an outdoor heat exchanger 22 using multiple compressors 20.
Multi-line system 100 according to the ... of the embodiment of the present invention, by the first shut-off valve 24 for making multiple outdoor unit components 2
Communicate with each other, in multiple outdoor unit components 2 a portion operation and remaining be in standby when, pass through control
The operating status of control valve 23 and compressor 20 in the outdoor unit component 2 of standby mode can not only meet cooling and warming
While demand, the frequency of compressor 20 is reduced, improves system operation efficiency to reduce operating cost, while can also effectively carry
Low-temperature heating ability is risen, the defrost time is reduced, promotes users'comfort.
Therefore, the outdoor unit component 2 according to the ... of the embodiment of the present invention for multi-line system 100, by being equipped with first section
Only valve 24, and the first shut-off valve 24 is connected with outdoor heat exchanger 22 and third interface e, therefore outdoor unit component 2 is applied more
When in on-line system 100, not only the frequency of compressor 20 can be reduced while meeting cooling and warming demand, improve system
Operational energy efficiency can also effectively promote low-temperature heating ability to reduce operating cost, reduce the defrost time, promote user and relax
Appropriateness.
In a specific embodiment of the present invention, each outdoor unit component 2 further includes outdoor fan (not shown), outdoor wind
The neighbouring outdoor heat exchanger 22 of fan is arranged to direct the air to outdoor heat exchanger 22.So as to improve the heat exchange of outdoor heat exchanger 22
Efficiency.Wherein when a portion in multiple outdoor unit components 2 is run and remaining is in standby, waited for by control
When the operating status of control valve 23 and compressor 20 in the outdoor unit component 2 of machine state is to increase heat exchange area, outdoor fan
Rotating speed appropriate can reduce, so as to reduce the operation noise of outdoor unit component 2.
Multi-line system 100 and its control method according to the ... of the embodiment of the present invention is described in detail below with reference to 1- Fig. 5.
Multi-connected machine system 100 according to the ... of the embodiment of the present invention includes：Indoor unit combines and multiple outdoor unit components, outdoor unit
Part 2 includes：Compressor 20, commutation component 21, outdoor heat exchanger 22, control valve 23.Wherein, compressor 20 have exhaust outlet a and
Gas returning port b, commutation component 21 include first interface c, second interface d, third interface e and the 4th interface f, first interface c and the
It is connected one of in two interface d and third interface e, another in the 4th interface f and second interface d and third interface e
Conducting, first interface c are connected with exhaust outlet a, and the 4th interface f is connected with gas returning port b, and second interface d is combined with indoor unit to be connected.
Preferably, commutation component 21 is four-way valve.
The first end of outdoor heat exchanger 22 is connected to third interface e.The second end phase of control valve 23 and outdoor heat exchanger 22
Even.Optionally, control valve 23 is electric expansion valve or solenoid valve.Multiple outdoor unit components 2 are combined with indoor unit respectively to be connected, more
The first end of the outdoor heat exchanger 22 of a outdoor unit component 2 communicates with each other.Wherein in some specific examples of the present invention, each
Outdoor unit component 2 may include the first shut-off valve 24 being connected with the first end of outdoor heat exchanger 22 and third interface e, pass through by
First shut-off valve 24 of multiple outdoor unit components 2 is connected with each other and makes the of the outdoor heat exchanger 22 of multiple outdoor unit components 2
One end communicates with each other.Of course, it should be understood that can also be only by equipped with the outdoor heat exchanger with multiple outdoor unit components 2
The connected common-use tunnel 3 of 22 first end is so that the first end of the outdoor heat exchanger 22 of multiple outdoor unit components 2 communicates with each other.
When multi-line system 100 works, using following control method, which includes the following steps：
S1：It detects whether each outdoor unit component 2 runs, and detects the operational mode of the outdoor unit component 2 of operation, each
Outdoor unit component 2 can be with heating operation, heating operation or Defrost operation.Commutation component in wherein standby outdoor unit component 2
21, compressor 20 and control valve 23 are closed.
S2：When the outdoor unit component 2 of detection operation is in refrigerating operaton, the control in standby outdoor unit component 2 is controlled
Valve 23 processed is opened, and the commutation component 21 and compressor 20 in outdoor unit component 2 standby at this time are closed so that from fortune
The refrigerant flowed out in the compressor 20 of capable outdoor unit component 2 is flowed into the outdoor heat exchanger 22 of standby outdoor unit component 2
To increase the heat exchange area in condensation process, in other words, the refrigerant flowed out at this time from the compressor 20 of the outdoor unit component 2 of operation
It is not only flowed into the outdoor heat exchanger 22 of the outdoor unit component 2 of operation, the outdoor for also flowing into standby outdoor unit component 2 is changed
In hot device 22.In that case, the flow direction of refrigerant is as shown in Figure 3.
When the outdoor unit component 2 of detection operation is in heating operation, the control valve in standby outdoor unit component 2 is controlled
23 open, and the commutation component 21 and compressor 20 in outdoor unit component 2 standby at this time are closed so that from indoor unit
The refrigerant of combination discharge is flowed into the outdoor heat exchanger 22 of standby outdoor unit component 2 to increase the heat-transfer surface in evaporation process
Product, in other words, in the outdoor heat exchanger 22 for the outdoor unit component 2 for being not only flowed into operation from the refrigerant of indoor unit combination discharge also
It is flowed into the outdoor heat exchanger 22 of standby outdoor unit component 2, in that case, the flow direction of refrigerant is as shown in Figure 4.
It is in Defrost operation when detecting the outdoor unit component 2 run, controls the compressor 20 in standby outdoor unit component 2
It opens, the closing of control valve 23, the first interface c and third interface e controlled in the commutation component 21 of standby outdoor unit component 2 is led
Logical and second interface d and the 4th interface f conductings, the refrigerant being discharged from the compressor 20 in standby and operation outdoor unit component 2
To reduce defrost time, in that case, refrigerant in the outdoor heat exchanger 22 being all flowed into the outdoor unit component 2 of operation
Flow direction is as shown in Figure 5.
It needs to illustrate, specifically outdoor unit component has been described above in flow direction to the refrigerant in above-mentioned three kinds of situations
It is described in detail when 2, just repeats no more here.
Multi-line system 100 according to the ... of the embodiment of the present invention, by the outdoor heat exchanger 22 for making multiple outdoor unit components 2
First end communicate with each other, in multiple outdoor unit components 2 a portion operation and remaining be in standby when,
The operating status of the control valve 23 and compressor 20 in outdoor unit component 2 by controlling standby mode, can not only meet
While cooling and warming demand, the frequency of compressor 20 is reduced, improves system operation efficiency to reduce operating cost, while may be used also
Effectively to promote low-temperature heating ability, the defrost time is reduced, promotes users'comfort.
The control method of multi-line system 100 according to the ... of the embodiment of the present invention, by the outdoor unit for controlling standby mode
The operating status of control valve 23 and compressor 20 in part 2 not only can reduce compression while meeting cooling and warming demand
The frequency of machine 20 improves system operation efficiency to reduce operating cost, while can also effectively promote low-temperature heating ability, reduces
The defrost time promotes users'comfort.
In some embodiments of the invention, each outdoor unit component 2 further includes the room that neighbouring outdoor heat exchanger 22 is arranged
External fan, when being opened in step s 2 to increase heat exchange area by controlling the control valve 23 of standby outdoor unit component 2, control
The rotating speed of outdoor fan in the outdoor unit component 2 of operation is reduced to reduce noise.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (3)
1. a kind of control method of multi-line system, which is characterized in that the multi-line system includes：Indoor unit combine and it is multiple
Outdoor unit component, the outdoor unit component include：Compressor, the compressor have exhaust outlet and gas returning port；Commutate component, institute
Commutation component is stated to include in first to fourth interface, the first interface and the second interface and the third interface wherein
One conducting, the 4th interface are connected with another in the second interface and the third interface, the first interface
It is connected with the exhaust outlet, the 4th interface is connected with the gas returning port, and the second interface combines phase with the indoor unit
Even；Outdoor heat exchanger, the first end of the outdoor heat exchanger and the third orifice；Control valve, the control valve and institute
The second end for stating outdoor heat exchanger is connected；The multiple outdoor unit component is combined with the indoor unit respectively to be connected, the multiple
The first end of the outdoor heat exchanger of outdoor unit component communicates with each other；
The control method includes the following steps：
S1：Whether each outdoor unit component of detection runs, and detects the operational mode of the outdoor unit component of operation；
S2：When the outdoor unit component of detection operation is in refrigerating operaton, control in the standby outdoor unit component
Control valve is opened so that the refrigerant flowed out from the compressor of the outdoor unit component of operation is flowed into the standby outdoor
To increase the heat exchange area in condensation process in the outdoor heat exchanger of thermomechanical components；
When the outdoor unit component of detection operation is in heating operation, the control in the standby outdoor unit component is controlled
Valve is opened so that the outdoor heat exchange of the standby outdoor unit component is flowed into from the refrigerant of indoor unit combination discharge
To increase the heat exchange area in evaporation process in device；
It is in Defrost operation when detecting the outdoor unit component run, controls the compressor in the standby outdoor unit component
It opens, control valve closing, controls the first interface in the commutation component of the standby outdoor unit component and the third
Interface be connected and the second interface and the 4th interface conducting, from it is standby and operation the outdoor unit component in described in
When the refrigerant of compressor discharge is all flowed into the outdoor heat exchanger in the outdoor unit component of operation to reduce defrost
Between.
2. the control method of multi-line system according to claim 1, which is characterized in that each outdoor unit component is also
Include the outdoor fan of neighbouring outdoor heat exchanger setting, in step s 2 by controlling the standby outdoor unit component
When the control valve is opened to increase heat exchange area, controlling the rotating speed of the outdoor fan in the outdoor unit component of operation reduces
To reduce noise.
3. the control method of multi-line system according to claim 1, which is characterized in that the commutation component is four-way
Valve, the control valve are solenoid valve or electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387748.1A CN105333639B (en) | 2014-08-07 | 2014-08-07 | Multi-line system and its outdoor unit component, control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387748.1A CN105333639B (en) | 2014-08-07 | 2014-08-07 | Multi-line system and its outdoor unit component, control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333639A CN105333639A (en) | 2016-02-17 |
| CN105333639B true CN105333639B (en) | 2018-09-07 |
Family
ID=55284311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387748.1A Active CN105333639B (en) | 2014-08-07 | 2014-08-07 | Multi-line system and its outdoor unit component, control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333639B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542230A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | air conditioner, control method and device thereof, and computer-readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024965A (en) * | 2007-07-23 | 2009-02-05 | Fujitsu General Ltd | Air conditioner |
| KR20090080176A (en) * | 2008-01-21 | 2009-07-24 | 엘지전자 주식회사 | cooling and heating system and controling method of the same |
| EP2236383A3 (en) * | 2009-03-31 | 2011-08-17 | Hitachi, Ltd. | Heat pump air conditioning system for railway vehicle |
| CN203385089U (en) * | 2013-07-08 | 2014-01-08 | 南京天加空调设备有限公司 | Modularized multi-split air-conditioning system |
| CN203464541U (en) * | 2013-09-13 | 2014-03-05 | 广东欧科空调制冷有限公司 | Floor-heating hot water system of water-cooling multiple-connection type heat-recovery air-conditioner |
| CN203615642U (en) * | 2013-10-25 | 2014-05-28 | 广东美的暖通设备有限公司 | Multi-union central air-conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234271B (en) * | 2013-05-11 | 2015-04-15 | 力诺瑞特（上海）新能源有限公司 | Dual system Freon path dividing heat pump water heater |
-
2014
- 2014-08-07 CN CN201410387748.1A patent/CN105333639B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024965A (en) * | 2007-07-23 | 2009-02-05 | Fujitsu General Ltd | Air conditioner |
| KR20090080176A (en) * | 2008-01-21 | 2009-07-24 | 엘지전자 주식회사 | cooling and heating system and controling method of the same |
| EP2236383A3 (en) * | 2009-03-31 | 2011-08-17 | Hitachi, Ltd. | Heat pump air conditioning system for railway vehicle |
| CN203385089U (en) * | 2013-07-08 | 2014-01-08 | 南京天加空调设备有限公司 | Modularized multi-split air-conditioning system |
| CN203464541U (en) * | 2013-09-13 | 2014-03-05 | 广东欧科空调制冷有限公司 | Floor-heating hot water system of water-cooling multiple-connection type heat-recovery air-conditioner |
| CN203615642U (en) * | 2013-10-25 | 2014-05-28 | 广东美的暖通设备有限公司 | Multi-union central air-conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105333639A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203231419U (en) | Air conditioner | |
| CN106524557B (en) | Anti- return hydraulic control method when multi-line system and its defrosting | |
| CN101644508B (en) | Multi-connected air conditioner multifunctional system for cold water and hot water | |
| CN104729029A (en) | Air conditioning system and control method thereof | |
| CN104833010B (en) | The outdoor unit and heat-reclamation multi-compressors of heat-reclamation multi-compressors | |
| CN104204690B (en) | Air-conditioning device | |
| CN204593992U (en) | Air-conditioning equipment and defrost control system thereof | |
| CN109028650A (en) | A kind of multi-gang air-conditioner hot water integrated machine | |
| CN104515322B (en) | Air conditioning system capable of realizing continuous heating | |
| US20110041541A1 (en) | Air Conditioner | |
| CN106931676B (en) | Air conditioning system and defrosting control method thereof | |
| JP2006258343A (en) | Air conditioning system | |
| CN106052181B (en) | Air-conditioning system and its control method | |
| CN101726132A (en) | Air conditioner | |
| CN106288564A (en) | Air conditioning system | |
| CN101782305A (en) | Heat pump type air conditioner and defrosting method thereof | |
| CN104764111A (en) | Multi-connected air conditioning system and defrosting control method thereof | |
| CN103765133A (en) | Refrigeration cycle apparatus and air conditioner provided with same | |
| CN201396981Y (en) | Heat pump type air conditioner | |
| CN111306832B (en) | Air conditioner | |
| CN107642929B (en) | Defrosting device and method for heat exchanger | |
| CN101603701B (en) | Auxiliary heating method of air conditioner with auxiliary heating device | |
| CN105333639B (en) | Multi-line system and its outdoor unit component, control method | |
| CN104697245B (en) | Coupling heat pump system | |
| CN102466370A (en) | Air-conditioning water heater and method for controlling same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |