CN105066349B - The interior machine patten transformation control method and heat-reclamation multi-compressors of heat-reclamation multi-compressors - Google Patents
The interior machine patten transformation control method and heat-reclamation multi-compressors of heat-reclamation multi-compressors Download PDFInfo
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- CN105066349B CN105066349B CN201510472246.3A CN201510472246A CN105066349B CN 105066349 B CN105066349 B CN 105066349B CN 201510472246 A CN201510472246 A CN 201510472246A CN 105066349 B CN105066349 B CN 105066349B
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- heat exchanger
- indoor heat
- cold
- compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Abstract
The invention discloses the interior machine patten transformation control method and heat-reclamation multi-compressors of a kind of heat-reclamation multi-compressors.Heat-reclamation multi-compressors include compressor, reversal valve, outdoor heat exchanger, high-pressure air pipe, liquid pipe, low pressure gas pipe, indoor heat exchanger and cold and hot converter corresponding with indoor heat exchanger, and interior machine patten transformation control method includes：When carrying out refrigeration mode and heating mode conversion to indoor heat exchanger, judge whether reversal valve needs commutation, if it is judged that being yes, then operate corresponding cold and hot converter and operate reversal valve co- controlling indoor heat exchanger to carry out refrigeration mode and heating mode conversion, if it is judged that being no, then corresponding cold and hot converter control indoor heat exchanger is operated to carry out refrigeration mode and heating mode conversion.The interior machine patten transformation control method of the present invention can selectively be distinguished according to different change over conditions, sweetly disposition, so as to reduce noise targeted specifically, improve comfortableness when user uses.
Description
Technical field
The present invention relates to field of air conditioning, the interior machine patten transformation control method and heat of more particularly to a kind of heat-reclamation multi-compressors
Reclaim multi-connected machine.
Background technology
With continuing to develop for multi-connected machine technology, heat-reclamation multi-compressors product as a efficient energy-saving product increasingly
Obtain the attention of user.
Heat-reclamation multi-compressors can realize that part indoor heat exchanger runs refrigeration mode, part indoor heat exchanger fortune in system
The function of row heating mode.In the prior art, it is generally logical during the conversion of heat exchanger progress refrigeration mode and heating mode indoors
Cold and hot converter corresponding with indoor heat exchanger is crossed to be controlled.But, because indoor heat exchanger carries out refrigeration mode and heats
During patten transformation, the problem of being related to refrigerant flow direction switching, the interior machine patten transformation control method conversion noise of prior art compared with
Greatly, especially when high-pressure side refrigerant and low-pressure side refrigerant are changed, the impact of pressure can cause obvious noise and pipeline vibration, shadow
Ring comfortableness when user uses.
The content of the invention
It is an object of the invention to provide a kind of interior machine patten transformation control method of heat-reclamation multi-compressors and recuperation of heat are many
It is online, it is intended to lower the noise in indoor heat exchanger progress refrigeration mode and heating mode transfer process, when raising user uses
Comfortableness.
This first aspect provides a kind of interior machine patten transformation control method of heat-reclamation multi-compressors, the heat-reclamation multi-compressors
Change including compressor, reversal valve, outdoor heat exchanger, high-pressure air pipe, liquid pipe, low pressure gas pipe, indoor heat exchanger and with the interior
The corresponding cold and hot converter of hot device, the high-pressure air pipe is connected with the outlet of the compressor, the low pressure gas pipe and the pressure
The import connection of contracting machine, the outdoor heat exchanger is connected in the liquid pipe, and the indoor heat exchanger is connected with the liquid pipe, institute
Stating reversal valve is used for the break-make for controlling the liquid pipe with the break-make of the high-pressure air pipe and with the low pressure gas pipe, described cold and hot
Converter is used for the break-make for controlling the corresponding indoor heat exchanger and the high-pressure air pipe and logical with the low pressure gas pipe
Disconnected, the interior machine patten transformation control method includes：Refrigeration mode and heating mode conversion are being carried out to the indoor heat exchanger
When, judge whether the reversal valve needs commutation, if it is judged that being yes, then operate the corresponding cold and hot converter and grasp
Make indoor heat exchanger described in the reversal valve co- controlling and carry out refrigeration mode and heating mode conversion, if it is judged that being
It is no, then operate the corresponding cold and hot converter to control the indoor heat exchanger to carry out refrigeration mode and heating mode conversion.
Further, there is refrigeration to be dominant and operational mode and heat the operational mode that is dominant, judge for the heat-reclamation multi-compressors
Whether the reversal valve needs commutation to include：If before refrigeration mode and heating mode conversion is carried out to the indoor heat exchanger
Afterwards, the heat-reclamation multi-compressors, which are respectively at, freezes the pattern that is dominant and heats the different mode in the pattern of being dominant, then described to judge
As a result it is yes；If before and after refrigeration mode and heating mode conversion were carried out to the indoor heat exchanger, the heat recovery multiplex
Machine is not in freezing the pattern of being dominant and heats the different mode in the pattern of being dominant, then the judged result is no.
Further, judge whether the reversal valve needs commutation to include：If changing load is more than predetermined load, institute
State judged result be it is yes, if it is described conversion load be less than or equal to the predetermined load, the judged result be it is no, its
In, the conversion load is progress refrigeration mode and the load of the indoor heat exchanger of heating mode conversion.
Further, the compressor is frequency-changeable compressor, before the operation cold and hot converter is completed, makes the pressure
Run below contracting machine reduction frequency to the load needed, the compressor is recovered after the operation cold and hot converter is completed
To the load operation needed.
Further, before the operation cold and hot converter is completed, the compressor frequency is made to be reduced to minimum load
Operation.
Further, the corresponding cold and hot converter is operated to include：The corresponding cold and hot converter is operated to make described
Indoor heat exchanger disconnects with the high-pressure air pipe and the low pressure gas pipe, keeps the indoor heat exchanger to connect with the liquid pipe
Logical, until the pressure of the indoor heat exchanger is in predetermined pressure range, then to operate the corresponding cold and hot converter to make described
Indoor heat exchanger is in the mode operation after conversion.
Further, the compressor is frequency-changeable compressor, makes the interior operating the corresponding cold and hot converter
Before heat exchanger disconnects with the high-pressure air pipe and the low pressure gas pipe, make the compressor reduction frequency to the load of needs
Run below, after the mode operation after operating the corresponding cold and hot converter to make the indoor heat exchanger be in conversion,
The compressor is set to recover to the load operation of needs.
Further, the indoor heat exchanger from refrigeration mode be converted to heating mode when, operate it is corresponding described cold and hot
Converter makes the mode operation that the indoor heat exchanger is in after conversion described including operating the corresponding cold and hot converter to make
Indoor heat exchanger is connected with the high-pressure air pipe and disconnected with the low pressure gas pipe.
Further, if the judged result is yes, the corresponding cold and hot converter is first operated to change the interior
Hot device is connected with the high-pressure air pipe and disconnected with the low pressure gas pipe, then operates the reversal valve to commutate.
Further, the compressor is frequency-changeable compressor, makes the interior operating the corresponding cold and hot converter
Before heat exchanger disconnects with the high-pressure air pipe and the low pressure gas pipe, make the compressor reduction frequency to the load of needs
Run below, after the reversal valve commutation is operated, the compressor is recovered to the load operation of needs.
Further, the indoor heat exchanger from heating mode be converted to refrigeration mode when, operate it is corresponding described cold and hot
Converter makes the mode operation that the indoor heat exchanger is in after conversion described including operating the corresponding cold and hot converter to make
Indoor heat exchanger disconnects with the high-pressure air pipe and connected with the low pressure gas pipe.
Further, if the judged result is yes, the reversal valve is first operated to commutate, then operate corresponding described cold
Thermoconverter makes the indoor heat exchanger disconnect and be connected with the low pressure gas pipe with the high-pressure air pipe.
Further, the compressor is frequency-changeable compressor, after the reversal valve commutation is operated, operates corresponding institute
Stating cold and hot converter makes before the indoor heat exchanger and the high-pressure air pipe and the low pressure gas pipe disconnect, to make the compression
Run below machine reduction frequency to the load needed, make the indoor heat exchanger and institute operating the corresponding cold and hot converter
High-pressure air pipe is stated to disconnect and after connecting with the low pressure gas pipe, the compressor is recovered to the load operation of needs.
Second aspect of the present invention provides a kind of heat-reclamation multi-compressors, the heat-reclamation multi-compressors include compressor, reversal valve,
Outdoor heat exchanger, high-pressure air pipe, liquid pipe, low pressure gas pipe, indoor heat exchanger and cold and hot conversion corresponding with the indoor heat exchanger
Device, the high-pressure air pipe is connected with the outlet of the compressor, and the low pressure gas pipe is connected with the import of the compressor, described
Outdoor heat exchanger is connected in the liquid pipe, and the indoor heat exchanger is connected with the liquid pipe, and the reversal valve is used to control institute
Break-make of the liquid pipe with the break-make of the high-pressure air pipe and with the low pressure gas pipe is stated, the cold and hot converter is used to control correspondence
The indoor heat exchanger and the high-pressure air pipe break-make and break-make with the low pressure gas pipe, the heat-reclamation multi-compressors
It is interior any one of the mode changeover control device application first aspect present invention also including mode changeover control device
Machine patten transformation control method carries out refrigeration mode to the indoor heat exchanger of the heat-reclamation multi-compressors and heating mode conversion is controlled
System.
The interior machine patten transformation control method and heat-reclamation multi-compressors of the heat-reclamation multi-compressors provided based on the present invention, relatively
In being commutated in the prior art by cold and hot converter corresponding with indoor heat exchanger merely, without regard to the control to system entirety
For the interior machine patten transformation control method of system, the interior machine patten transformation control method of above heat-reclamation multi-compressors is being freezed
When pattern and heating mode conversion, can selectively it be distinguished according to different change over conditions, sweetly disposition makes reversal valve join in good time
With interior machine patten transformation, high-low pressure Sources controlling can be lived by reversal valve commutation, so as to reduce noise targeted specifically, carried
Comfortableness when high user uses.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the heat recovery multiplex of the interior machine patten transformation control method of the heat-reclamation multi-compressors of the application embodiment of the present invention
The principle schematic of machine.
Fig. 2 is the control flow chart of the interior machine patten transformation control method of the heat-reclamation multi-compressors of the embodiment of the present invention.
In Fig. 1, each reference is represented respectively：
1st, compressor；
2nd, gas-liquid separator；
3rd, equilibrated valve；
4th, low pressure gas pipe；
5th, the first cold and hot converter；
5A, the first indoor set heat magnetic valve；
5B, the first indoor mechanism cold magnetic valve；
6th, the second cold and hot converter；
Mechanism thermoelectrical magnetic valve in 6A, second Room；
Mechanism cold magnetic valve in 6B, second Room；
7th, the first indoor heat exchanger；
8th, the second indoor heat exchanger；
12nd, liquid pipe；
13rd, high-pressure air pipe；
14th, high-pressure air pipe check valve；
15th, outdoor throttling arrangement；
16th, outdoor heat exchanger；
17th, reversal valve；
18th, oil eliminator；
19th, the first indoor throttling arrangement；
20th, throttling arrangement in second Room；
21st, capillary.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
If being related to an element to be connected with another element, technical term " connection " both can be an element and another
There is one between one element between being directly connected to without other elements or an element and another element
Or a number of other elements are indirectly connected with.
Fig. 1 is the heat recovery multiplex of the interior machine patten transformation control method of the heat-reclamation multi-compressors of the application embodiment of the present invention
The principle schematic of machine.Fig. 2 is the controlling stream of the interior machine patten transformation control method of the heat-reclamation multi-compressors of the embodiment of the present invention
Cheng Tu.
As shown in figure 1, in the present embodiment, heat-reclamation multi-compressors include compressor 1, gas-liquid separator 2, equilibrated valve 3,
Low pressure gas pipe 4, the first cold and hot converter 5, the first indoor set heat magnetic valve 5A, the first indoor mechanism cold magnetic valve 5B, second
Mechanism thermoelectrical magnetic valve 6A in cold and hot converter 6, second Room, mechanism cold magnetic valve 6B, the first indoor heat exchanger 7, in second Room
Two indoor heat exchangers 8, liquid pipe 12, high-pressure air pipe 13, high-pressure air pipe check valve 14, outdoor throttling arrangement 15, outdoor heat exchanger 16,
Throttling arrangement 20, capillary 21 etc. in the indoor throttling arrangement 19 of reversal valve 17, oil eliminator 18, first, second Room.
High-pressure air pipe 13 is connected by oil eliminator 18 with the outlet of compressor 1.High-pressure air pipe check valve 14 is arranged at height
On air pipe 13, high-pressure air pipe 13 is also connected by the first cold and hot converter 5 with the first indoor heat exchanger 7, and passes through second
Cold and hot converter 6 is connected with the second indoor heat exchanger 8.
Low pressure gas pipe 4 is connected by gas-liquid separator 2 with the import of compressor 1, and low pressure gas pipe 4 also passes through first cold and hot turn
Parallel operation 5 is connected with the first indoor heat exchanger 7, and is connected by the second cold and hot converter 6 with the second indoor heat exchanger 8.
Outdoor heat exchanger 16 and outdoor throttling arrangement 15 are serially connected with liquid pipe 12.The wherein a port of outdoor heat exchanger 16
It is connected with reversal valve 17.Liquid pipe 12 is also connected by the first indoor throttling arrangement 19 with the first indoor heat exchanger 7, and passes through the
Two indoor throttling arrangements 20 are connected with the second indoor heat exchanger 8.
Reversal valve 17 is used for the break-make for controlling liquid pipe 12 with the break-make of high-pressure air pipe 13 and with low pressure gas pipe 4.This implementation
In example, reversal valve 17 is four-way valve, and four ports of four-way valve connect an end of high-pressure air pipe 13, outdoor heat exchanger 16 respectively
Mouthful, positioned at gas-liquid separator 2 inlet side low pressure gas pipe 4 and one end by capillary 21, the other end of capillary 21 with
The import connection of compressor 1.When four-way valve obtains electric, liquid pipe 12 can be made to be connected with low pressure gas pipe 4, make high-pressure air pipe 13 and low pressure gas
Pipe 4 is connected by capillary 21.During four-way valve power down, high-pressure air pipe 13 can be made to be connected with liquid pipe 12, the import of gas-liquid separator 2
Connected with outlet by capillary 21.
First cold and hot converter 5 is used for the break-make and and low pressure gas for controlling the first indoor heat exchanger 7 and high-pressure air pipe 13
The break-make of pipe 4.In the present embodiment, the first cold and hot converter 5 heats the indoor mechanism of magnetic valve 5A and first including the first indoor set
Cold magnetic valve 5B.First indoor set heats magnetic valve 5A and is connected between the indoor heat exchanger 7 of high-pressure air pipe 13 and first.First Room
Interior mechanism cold magnetic valve 5B is connected between the indoor heat exchanger 7 of low pressure gas pipe 4 and first.
Second cold and hot converter 6 is used for the break-make and and low pressure gas for controlling the second indoor heat exchanger 8 and high-pressure air pipe 13
The break-make of pipe 4.Second cold and hot converter 6 includes mechanism cold magnetic valve 6B in mechanism thermoelectrical magnetic valve 6A in second Room and second Room.
Mechanism thermoelectrical magnetic valve 6A is connected between the indoor heat exchanger 8 of high-pressure air pipe 13 and second in second Room.Mechanism cold electricity in second Room
Magnet valve 6B is connected between the indoor heat exchanger 8 of low pressure gas pipe 4 and second.
In the present embodiment, the first indoor throttling arrangement 19 is electric expansion valve, and the first indoor throttling arrangement 19 is connected to liquid
Between the indoor heat exchanger 7 of pipe 12 and first, for controlling liquid pipe 12 to pass in and out the coolant quantity of the first indoor heat exchanger 7.
In the present embodiment, throttling arrangement 20 is that throttling arrangement 20 is connected to liquid in electric expansion valve, second Room in second Room
Between the indoor heat exchanger 8 of pipe 12 and second, for controlling liquid pipe 12 to pass in and out the coolant quantity of the second indoor heat exchanger 8.
In the present embodiment, including two indoor heat exchangers in parallel and cold with one-to-one two of two indoor heat exchangers
Thermoconverter, in other embodiments, can include three more parallels indoor heat exchanger and with more than three indoor heat exchange
Corresponding more than the three cold and hot converters of device.
As shown in figure 1, being also respectively provided with corresponding control valve on high-pressure air pipe 13, liquid pipe 12 and low pressure gas pipe 4.Pressure
The two ends of balanced valve 3 are connected with high-pressure air pipe 13 and low pressure gas pipe 4 respectively.
Equilibrated valve 3 is when the indoor heat exchanger of the heat-reclamation multi-compressors all runs refrigeration mode, bypass high pressure side
Pressure, it is to avoid form high pressure dead band.
There is the refrigerant of three kinds of states simultaneously in the system of the heat-reclamation multi-compressors.
High-pressure air pipe 13 provides high-pressure gaseous refrigerant, and high-pressure gaseous refrigerant can pass through high-pressure air pipe check valve 14 and first
Indoor set heats magnetic valve 5A and entered in the first indoor heat exchanger 7, passes through mechanism heat in high-pressure air pipe check valve 14 and second Room
Magnetic valve 6A enters the second indoor heat exchanger 8, so that the control by corresponding cold and hot converter can be carried to indoor heat exchanger
For high pressure thermal source.
When high-pressure air pipe 13 is connected with liquid pipe 12, it is cold that high-pressure gaseous refrigerant obtains liquid after the cooling of outdoor heat exchanger 16
Matchmaker, liquid pipe 12 can provide liquid refrigerants to the first indoor heat exchanger 7 and the second indoor heat exchanger 8 respectively.
Low pressure gas pipe 4 is after the first indoor heat exchanger 7 and the second indoor heat exchanger 8 freeze or heated, by low pressure refrigerant
Send back to the import of compressor 1.
High-pressure air pipe 13 and low pressure gas pipe 4 can may be selected by the control of cold and hot converter with corresponding indoor heat exchanger
Connection, indoor heat exchanger is run under the refrigeration mode or heating mode of needs.
Heat-reclamation multi-compressors can realize that part indoor heat exchanger is run in cooling mode in system, the indoor heat exchange in part
The function that device is run in a heating mode.Wherein, high-pressure air pipe 13 and the formation of liquid pipe 12 can be selected to heat in heating mode
Loop, liquid pipe 12 and the formation refrigerating circuit of low pressure gas pipe 4 can be selected in refrigeration mode.
Turn to reduce noise and increase pattern of the heat-reclamation multi-compressors in refrigeration mode and heating mode transfer process
The reliability changed, the present embodiment proposes a kind of interior machine patten transformation control method of heat-reclamation multi-compressors, and the interior machine pattern turns
Change control method be included in indoor heat exchanger carry out refrigeration mode and heating mode conversion when, judge whether reversal valve 17 needs
Commutation, if it is judged that being yes, then operates corresponding cold and hot converter and operates the co- controlling indoor heat exchanger of reversal valve 17
Refrigeration mode and heating mode conversion are carried out, if it is judged that being no, then operates and is changed in corresponding cold and hot converter control room
Hot device carries out refrigeration mode and heating mode conversion.
One kind judges whether reversal valve 17 needs the commutation can be：Heat-reclamation multi-compressors have refrigeration be dominant operational mode and
The operational mode that is dominant is heated, judges whether reversal valve 17 needs commutation to include：If carrying out refrigeration mode to indoor heat exchanger
Before and after heating mode conversion, heat-reclamation multi-compressors, which are respectively at, to freeze the pattern that is dominant and heats the different moulds in the pattern of being dominant
Formula, then judged result is yes；If before and after refrigeration mode and heating mode conversion were carried out to indoor heat exchanger, heat recovery multiplex
Machine is not in freezing the pattern of being dominant and heats the different mode in the pattern of being dominant, then judged result is no.Wherein, refrigeration is dominant fortune
Row mode and heat the division of the operational mode that is dominant and can be, when heating load is more than cooling load in heat-reclamation multi-compressors,
Heat-reclamation multi-compressors are in and heat the operational mode that is dominant, conversely, when heating load is less than cooling load in heat-reclamation multi-compressors,
Then heat-reclamation multi-compressors are dominant operational mode in refrigeration.
It is another to judge whether reversal valve 17 needs the commutation to be：If changing load is more than predetermined load, judge
Whether reversal valve 17 needs the judged result of commutation to be yes, if conversion load is less than or equal to predetermined load, judges commutation
Whether valve 17 needs the judged result of commutation to be no.Wherein, conversion load is progress refrigeration mode and the room of heating mode conversion
The load of interior heat exchanger.
Relative to being commutated in the prior art by corresponding with indoor heat exchanger cold and hot converter merely, without regard to
For the interior machine patten transformation control method of the overall control of system, the interior machine patten transformation controlling party of above heat-reclamation multi-compressors
Method can selectively be distinguished, sweetly disposition makes when carrying out refrigeration mode and heating mode conversion according to different change over conditions
Reversal valve 17 participates in interior machine patten transformation in good time, commutates to live high-low pressure Sources controlling by reversal valve 17, so as to be directed to
Ground reduces noise, improves comfortableness when user uses.Further, the feelings of interior machine patten transformation control are participated in reversal valve 17
Under condition, the possibility for preventing the refrigerant of heat-reclamation multi-compressors system from completing normal circulation is also reduced, patten transformation is improved
Reliability.
In the present embodiment preferably, compressor 1 is frequency-changeable compressor, before the corresponding cold and hot converter of operation is completed,
Reduce compressor 1 to run below frequency to the load of needs, make compressor 1 after the corresponding cold and hot converter of operation is completed
Recover to the load operation needed.Run by making compressor 1 reduce frequency, complete machine load during patten transformation can be reduced,
For the straight swap-in row mode conversion of frequency is not reduced, the pressure differential in transfer process can be reduced, so as to reduce pattern
Noise in transfer process.
Preferably, before the corresponding cold and hot converter of operation is completed, the frequency of compressor 1 is made to be reduced to minimum load fortune
OK.By making compressor reduce frequency to minimum load operation, it can be decreased to complete machine load during patten transformation minimum, to the greatest extent
Possibly reduce the pressure differential in transfer process, so as to further reduce the noise in mode transition procedure.
Preferably, corresponding cold and hot converter is operated to include：Corresponding cold and hot converter is operated to make indoor heat exchanger and height
Air pipe 13 and low pressure gas pipe 4 disconnect, and keep indoor heat exchanger to be connected with liquid pipe 12, until indoor heat exchanger pressure is in advance
Constant-pressure scope, the mode operation for operating corresponding cold and hot converter to make indoor heat exchanger be in after conversion.Need indoor heat exchange
Device from refrigeration mode be converted to heating mode when, operate corresponding cold and hot converter indoor heat exchanger is connected with high-pressure air pipe 13
And disconnected with low pressure gas pipe 4, it is necessary to indoor heat exchanger from heating mode be converted to refrigeration mode when, operate corresponding cold and hot conversion
Device makes indoor heat exchanger disconnect and be connected with low pressure gas pipe 4 with high-pressure air pipe 13.
Due to the pressure in indoor heat exchanger can be made close in liquid pipe 12 before the pattern for being ultimately converted to need
Pressure, therefore conversion is the conversion that carries out or between high pressure refrigerant and middle pressure refrigerant between middle pressure refrigerant and low pressure refrigerant
The conversion of progress, for directly being changed in high pressure refrigerant and low pressure refrigerant, can reduce pressure differential during conversion, so that
Reduce noise during conversion, noise is controlled in a rational scope.
Preferably, when compressor 1 is frequency-changeable compressor, indoor heat exchanger and height are made operating corresponding cold and hot converter
Before air pipe 13 and low pressure gas pipe 4 disconnect, compressor 1 is reduced frequency and run below the load of needs, in operation pair
The cold and hot converter answered makes after the mode operation that indoor heat exchanger is in after conversion, compressor 1 is recovered to the load of needs
Operation.
Referring to Fig. 1 and Fig. 2, illustrate judging whether reversal valve 17 needs to change below by taking the first indoor set heat exchanger 7 as an example
To judged result for it is no when refrigeration mode and heating mode transfer process.
When judging whether reversal valve 17 needs the judged result of commutation to be no, compressor 1 is first set to reduce frequency to load
Minimum operation, then operate the first cold and hot converter 5 the first indoor set is heated the indoor mechanism cold magnetic valves of magnetic valve 5A and first
5B is simultaneously closed off, so that the first indoor heat exchanger 7 disconnects with high-pressure air pipe 13 and low pressure gas pipe 4, and keeps the first indoor section
Stream device 19, which is opened, makes the first indoor heat exchanger 7 be connected with liquid pipe 12, until the pressure of the first indoor heat exchanger 7 is in pre- level pressure
Power scope.
Wherein, predetermined pressure range can be the pressure limit for the setting that indoor heat exchanger can reach, can also
It is the multiple scope of refrigerant pressure in liquid pipe 12, such as when representing refrigerant pressure in liquid pipe 12 with p, predetermined pressure range can be with
It is 90%p~110%p.
Hereafter heating mode is converted to from refrigeration mode if necessary to the first indoor set heat exchanger 7, then opens first indoor
Mechanism thermoelectrical magnetic valve 5A makes the first indoor heat exchanger 7 be connected with high-pressure air pipe 13, and closing the first interior mechanism cold magnetic valve 5B makes
First indoor heat exchanger 7 disconnects with low pressure gas pipe 4；If necessary to the first indoor heat exchanger 7 refrigeration mould is converted to from heating mode
Formula, then closing the first indoor set and heating magnetic valve 5A makes the first indoor heat exchanger 7 be disconnected with high-pressure air pipe 13, opens first indoor
Mechanism cold magnetic valve 5B makes the first indoor heat exchanger 7 be connected with low pressure gas pipe 4.
After the pattern after controlling the first cold and hot converter 5 to make the first indoor heat exchanger 7 be in conversion, make compressor 1
Recover to the load operation needed, patten transformation is finished.
Preferably, if it is determined that whether reversal valve 17 needs the judged result of commutation to be yes, and indoor heat exchanger is from refrigeration
When patten transformation is heating mode, corresponding cold and hot converter is operated to make indoor heat exchanger and high-pressure air pipe 13 and low pressure gas pipe 4
Disconnect, keep indoor heat exchanger to be connected with liquid pipe 12, until when indoor heat exchanger pressure is in predetermined pressure range, controlling cold
Thermoconverter makes indoor heat exchanger connect and be disconnected with low pressure gas pipe 4 with high-pressure air pipe 13, then controls reversal valve 17 to commutate.
The commutation of reversal valve 17 is not only related to noise problem, also relates to pressure control problems, what reversal valve 17 commutated
Process control is bad to have the possibility for forming high pressure dead band, and now pressure, which can not turn on moment rising, causes pressure to be protected, and influences
The reliability of patten transformation.In the present embodiment, if it is determined that whether reversal valve 17 needs the judged result of commutation to be yes, from system
Chill formula makes the pattern that corresponding cold and hot converter is switched to after conversion into heating mode transfer process, first, then makes reversal valve
17 commutations, can reduce the noise in transfer process, and improve the reliability of patten transformation.
It is further preferred that when compressor 1 is frequency-changeable compressor, making indoor heat exchange operating corresponding cold and hot converter
Before device disconnects with high-pressure air pipe 13 and low pressure gas pipe 4, reduce compressor 1 and run below frequency to the load of needs,
Operate after the commutation of reversal valve 17, compressor 1 is recovered to the load operation of needs.As it was previously stated, compressor frequency reducing operation can
To reduce the noise in mode transition procedure.
Additionally preferably, if it is determined that reversal valve 17 whether need commutation judged result be it is yes, and indoor heat exchanger from
When heating mode is converted to refrigeration mode, operation reversal valve 17 commutates, operate corresponding cold and hot converter make indoor heat exchanger with
High-pressure air pipe 13 and low pressure gas pipe 4 disconnect, and keep indoor heat exchanger to be connected with liquid pipe 12, until indoor heat exchanger pressure is in
During predetermined pressure range, operate corresponding cold and hot converter make indoor heat exchanger and high-pressure air pipe 13 disconnect and with low pressure gas pipe 4
Connection.
If it is determined that reversal valve 17 whether need commutation judged result be it is yes, and indoor heat exchanger from heating mode conversion
During for refrigeration mode, make reversal valve 17 prior to corresponding cold and hot changer actions, corresponding cold and hot converter can be made to wait pressure
Acted after balance, so as to reach the effect of reduction noise.
It is further preferred that compressor 1 be frequency-changeable compressor when, operation reversal valve 17 commutate after, operate it is corresponding
Cold and hot converter makes before indoor heat exchanger and high-pressure air pipe 13 and low pressure gas pipe 4 disconnect, to make compressor 1 reduce frequency in need
Run below the load wanted, operate corresponding cold and hot converter make indoor heat exchanger and high-pressure air pipe 13 disconnect and and low pressure gas
After pipe 4 is connected, compressor 1 is set to recover to the load operation of needs.As it was previously stated, the frequency reducing of compressor 1 operation can reduce mould
Noise in formula transfer process.
Referring to Fig. 1 and Fig. 2, illustrate judging whether reversal valve 17 needs to change below by taking the second indoor set heat exchanger 8 as an example
To judged result be refrigeration mode when being and heating mode transfer process.
Judge reversal valve 17 whether need commutation judged result for be and need the second indoor heat exchanger 8 from freeze mould
When formula is converted to heating mode, compressor 1 is first set to reduce frequency in minimum load operation, then make the of the second cold and hot converter 6
Two indoor sets heat mechanism cold magnetic valve 6B in magnetic valve 6A and second Room and simultaneously switched off, so that the second indoor heat exchanger 8 and height
Air pipe 13 and low pressure gas pipe 4 disconnect, and throttling arrangement 20 in second Room is opened the second indoor heat exchanger 8 of holding and liquid
Pipe 12 is connected, until when the refrigerant pressure in the second indoor heat exchanger 8 is in predetermined pressure range, controlling the second cold and hot converter
Mechanism thermoelectrical magnetic valve 6A is opened in 6 second Room and mechanism cold magnetic valve 6B disconnects in second Room, so that the second indoor heat exchanger 8
Connect and disconnected with low pressure gas pipe 4 with high-pressure air pipe 13, then control reversal valve 17 to commutate, in the present embodiment, make reversal valve 17 from
Power down is switched to obtain electricity condition, liquid pipe 12 is disconnected and is connected with low pressure gas pipe 4 with high-pressure air pipe 13, and outdoor heat exchanger 16 is from system
Chill formula is switched to heating mode.Compressor 1 is finally set to recover to the frequency of needs to run, patten transformation is completed.
Judging whether reversal valve 17 needs the judged result of commutation to be and the second indoor heat exchanger 8 of needs is from heating mould
When formula is converted to refrigeration mode, operation reversal valve 17 commutates, in the present embodiment, reversal valve 17 is changed to power down shape by obtaining electricity condition
State, makes liquid pipe 12 connect and be disconnected with low pressure gas pipe 4 with high-pressure air pipe 13, and outdoor heat exchanger 16 is switched to refrigeration from heating mode
Pattern.Compressor 1 is controlled to reduce frequency to minimum load operation.Make mechanism thermoelectricity magnetic in the second Room of the second cold and hot converter 6
Mechanism cold magnetic valve 6B disconnects in valve 6A and second Room, so that the second indoor heat exchanger 7 and high-pressure air pipe 13 and low pressure gas pipe 14
Disconnect, and make the opening of throttling arrangement 20 in second Room keep heat exchanger 8 in second to be connected with liquid pipe 12, until being changed in second Room
When refrigerant pressure in hot device 8 is in predetermined pressure range, mechanism thermoelectrical magnetic valve in the second Room of the second cold and hot converter 6 is controlled
6A is disconnected and mechanism cold magnetic valve 6B is opened in second Room so that the second indoor heat exchanger 8 and high-pressure air pipe 13 disconnect and with it is low
Air pipe 4 is connected.Compressor 1 is finally set to recover to the frequency of needs to run, patten transformation is completed.
The present embodiment also provides a kind of heat-reclamation multi-compressors.The heat-reclamation multi-compressors include compressor 1, reversal valve 17, room
External heat exchanger 16, high-pressure air pipe 13, liquid pipe 12, low pressure gas pipe 4, indoor heat exchanger and cold and hot conversion corresponding with indoor heat exchanger
Device, high-pressure air pipe 13 is connected with the outlet of compressor 1, and low pressure gas pipe 4 is connected with the import of compressor 1, and outdoor heat exchanger 16 connects
It is connected in liquid pipe 12, reversal valve 17 is used for the break-make for controlling liquid pipe 12 with the break-make of high-pressure air pipe 13 and with low pressure gas pipe 4, cold
Thermoconverter is used for the break-make for controlling corresponding indoor heat exchanger with the break-make of high-pressure air pipe 13 and with low pressure gas pipe 4.The heat
Reclaiming multi-connected machine also includes mode changeover control device, and the mode changeover control device is controlled using foregoing interior machine patten transformation
Method carries out refrigeration mode and heating mode conversion and control to the indoor heat exchanger of heat-reclamation multi-compressors.
Mode changeover control device can include judge module and the control module coupled with judge module, and control module is also
Coupled respectively with reversal valve 17 and cold and hot converter.Judge module is used to judge whether reversal valve 17 commutates.When judged result is
When no, the corresponding cold and hot converter control indoor heat exchanger of control module operation carries out refrigeration mode and heating mode conversion.When
Judged result is when being, control module operates reversal valve 17 and corresponding cold and hot converter co- controlling indoor heat exchanger system
Chill formula and heating mode conversion.
The heat-reclamation multi-compressors can be using the mode conversion method of foregoing heat-reclamation multi-compressors to heat-reclamation multi-compressors
The patten transformation of indoor heat exchanger is automatically controlled.
From the above description, it can be seen that the interior machine patten transformation control method of the heat-reclamation multi-compressors of above example of the present invention
With heat-reclamation multi-compressors provide it is a kind of be applied to heat-reclamation multi-compressors indoor heat exchanger patten transformation when one kind can reduce
The technical scheme of noise, can pass through reversal valve according to the different change over condition of indoor heat exchanger selectively differentiation, sweetly disposition
Participation reduce noise targeted specifically, improve comfortableness when user uses.Further, reversal valve and cold and hot converter are passed through
Operation order setting, can indoors heat exchanger from heating mode be converted to refrigeration mode when, reversal valve is first acted, it is right
The cold and hot converter answered is waited and acted after pressure balance, so as to reach the effect of reduction noise；And in heat exchanger indoors from system
When chill formula is converted to heating mode, cold and hot converter is first acted, wait indoor heat exchanger pressure to be converted to reach properly
When, open corresponding indoor set and heat magnetic valve, last reversal valve completes commutation action, so as to reach the effect of reduction noise.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among claimed technical scheme scope of the invention.
Claims (12)
1. a kind of interior machine patten transformation control method of heat-reclamation multi-compressors, the heat-reclamation multi-compressors include compressor, commutation
Valve, outdoor heat exchanger, high-pressure air pipe, liquid pipe, low pressure gas pipe, indoor heat exchanger and corresponding with the indoor heat exchanger cold and hot turn
Parallel operation, the high-pressure air pipe is connected with the outlet of the compressor, and the low pressure gas pipe is connected with the import of the compressor, institute
State outdoor heat exchanger to be connected in the liquid pipe, the indoor heat exchanger is connected with the liquid pipe, the reversal valve is used to control
Break-make of the liquid pipe with the break-make of the high-pressure air pipe and with the low pressure gas pipe, the cold and hot converter is used for control pair
Break-make of the indoor heat exchanger answered with the break-make of the high-pressure air pipe and with the low pressure gas pipe, it is characterised in that institute
Stating interior machine patten transformation control method includes：When carrying out refrigeration mode and heating mode conversion to the indoor heat exchanger, sentence
Whether the reversal valve that breaks needs commutation, if it is judged that being yes, then operates the corresponding cold and hot converter and operates institute
State described in reversal valve co- controlling indoor heat exchanger and carry out refrigeration mode and heating mode conversion, if it is judged that be it is no, then
The corresponding cold and hot converter is operated to control the indoor heat exchanger to carry out refrigeration mode and heating mode conversion, wherein,
The heat-reclamation multi-compressors there is refrigeration to be dominant operational mode and heat the operational mode that is dominant, whether judge the reversal valve
Commutation is needed to include：If before and after refrigeration mode and heating mode conversion were carried out to the indoor heat exchanger, the recuperation of heat
Multi-connected machine, which is respectively at, to freeze the pattern that is dominant and heats the different mode in the pattern of being dominant, then the judged result is yes；If
Before and after refrigeration mode and heating mode conversion are carried out to the indoor heat exchanger, the heat-reclamation multi-compressors are not in refrigeration and accounted for
Excellent pattern and the different mode in the pattern of being dominant is heated, then the judged result is no；Or,
Judge whether the reversal valve needs commutation to include：To carry out the indoor heat exchange of refrigeration mode and heating mode conversion
The load of device for conversion load, if it is described conversion load be more than predetermined load, the judged result be it is yes, if described turn
Load is changed less than or equal to the predetermined load, then the judged result is no.
2. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 1, it is characterised in that the pressure
Contracting machine is frequency-changeable compressor, before the operation cold and hot converter is completed, and makes the negative of the compressor reduction frequency extremely needs
Run below lotus, the compressor is recovered to the load operation of needs after the operation cold and hot converter is completed.
3. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 2, it is characterised in that complete
Operate before the cold and hot converter, the compressor frequency is reduced to minimum load operation.
4. the interior machine patten transformation control method of heat-reclamation multi-compressors according to any one of claim 1 to 3, its feature
It is, operates the corresponding cold and hot converter to include：Operate the corresponding cold and hot converter make the indoor heat exchanger with
The high-pressure air pipe and the low pressure gas pipe disconnect, and keep the indoor heat exchanger to be connected with the liquid pipe, until the room
The pressure of interior heat exchanger is in predetermined pressure range, then operates the corresponding cold and hot converter to be in the indoor heat exchanger
Mode operation after conversion.
5. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 4, it is characterised in that the pressure
Contracting machine is frequency-changeable compressor, makes the indoor heat exchanger and the high-pressure air pipe and institute operating the corresponding cold and hot converter
State before low pressure gas pipe disconnects, make to run below the compressor reduction frequency to the load for needs, in the corresponding institute of operation
Stating cold and hot converter makes the indoor heat exchanger after the mode operation after conversion, the compressor is recovered to needs
Load operation.
6. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 4, it is characterised in that the room
Interior heat exchanger from refrigeration mode be converted to heating mode when, operate the corresponding cold and hot converter to make at the indoor heat exchanger
Include operating the corresponding cold and hot converter to make the indoor heat exchanger and the high-pressure air pipe in the mode operation after conversion
Connect and disconnected with the low pressure gas pipe.
7. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 6, it is characterised in that if institute
It is yes to state judged result, first operate the corresponding cold and hot converter make the indoor heat exchanger connected with the high-pressure air pipe and
Disconnected with the low pressure gas pipe, then operate the reversal valve to commutate.
8. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 7, it is characterised in that the pressure
Contracting machine is frequency-changeable compressor, makes the indoor heat exchanger and the high-pressure air pipe and institute operating the corresponding cold and hot converter
State before low pressure gas pipe disconnects, make to run below the compressor reduction frequency to the load for needs, in the operation commutation
After valve commutation, the compressor is set to recover to the load operation of needs.
9. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 4, it is characterised in that the room
Interior heat exchanger from heating mode be converted to refrigeration mode when, operate the corresponding cold and hot converter to make at the indoor heat exchanger
Include operating the corresponding cold and hot converter to make the indoor heat exchanger and the high-pressure air pipe in the mode operation after conversion
Disconnect and connected with the low pressure gas pipe.
10. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 9, it is characterised in that if
The judged result is yes, first operates the reversal valve to commutate, then operate the corresponding cold and hot converter to change the interior
Hot device disconnects with the high-pressure air pipe and connected with the low pressure gas pipe.
11. the interior machine patten transformation control method of heat-reclamation multi-compressors according to claim 10, it is characterised in that described
Compressor is frequency-changeable compressor, after the reversal valve commutation is operated, operates the corresponding cold and hot converter to make the room
Before interior heat exchanger disconnects with the high-pressure air pipe and the low pressure gas pipe, make compressor reduction frequency the bearing to needs
Run below lotus, operate the corresponding cold and hot converter make the indoor heat exchanger and the high-pressure air pipe disconnect and with institute
State after low pressure gas pipe connection, the compressor is recovered to the load operation of needs.
12. a kind of heat-reclamation multi-compressors, the heat-reclamation multi-compressors include compressor, reversal valve, outdoor heat exchanger, high pressure gas
Pipe, liquid pipe, low pressure gas pipe, indoor heat exchanger and cold and hot converter corresponding with the indoor heat exchanger, the high-pressure air pipe with
The outlet connection of the compressor, the low pressure gas pipe is connected with the import of the compressor, and the outdoor heat exchanger is connected to
In the liquid pipe, the indoor heat exchanger is connected with the liquid pipe, and the reversal valve is used to control the liquid pipe and the high pressure
The break-make of tracheae and the break-make with the low pressure gas pipe, the cold and hot converter are used to control the corresponding indoor heat exchanger
Break-make with the break-make of the high-pressure air pipe and with the low pressure gas pipe, it is characterised in that the heat-reclamation multi-compressors are also wrapped
Include mode changeover control device, the interior machine mould any one of the mode changeover control device application claim 1 to 11
Formula switching control method carries out refrigeration mode and heating mode conversion and control to the indoor heat exchanger of the heat-reclamation multi-compressors.
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| CN106152406B (en) * | 2016-07-04 | 2019-06-25 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system and its cold and hot pattern switching |
| CN107830649A (en) * | 2017-11-20 | 2018-03-23 | 美意(浙江)空调设备有限公司 | A kind of air conditioning mode intelligent conversion system |
| CN110285565A (en) * | 2019-06-26 | 2019-09-27 | 珠海格力电器股份有限公司 | The control method of noise reducing apparatus and air-conditioner set and air-conditioner set |
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