CN103836773B - Multi-online air-conditioning system and shutdown noise control method thereof - Google Patents
Multi-online air-conditioning system and shutdown noise control method thereof Download PDFInfo
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- CN103836773B CN103836773B CN201210477318.XA CN201210477318A CN103836773B CN 103836773 B CN103836773 B CN 103836773B CN 201210477318 A CN201210477318 A CN 201210477318A CN 103836773 B CN103836773 B CN 103836773B
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- electric expansion
- expansion valve
- conditioning system
- valve
- compressor
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 24
- 238000005057 refrigeration Methods 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000003507 refrigerant Substances 0.000 abstract description 9
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention proposes a kind of multi-online air-conditioning system and shuts down the control method of noise, and the method includes: compressor is opened single-pass electromagnetic valve and closes the second electric expansion valve opened while shutting down under cooling condition.Thus; the multi-online air-conditioning system of the present invention shuts down the control method of noise; by opening single-pass electromagnetic valve while shutting down under cooling condition; and close the second electric expansion valve having turned on; can thoroughly eliminate the liquid refrigerants of indoor set in flowing to the noise caused by the second electric expansion valve impact, improve the comfortableness that multi-online air-conditioning system uses.It addition, the control method that the multi-online air-conditioning system of the embodiment of the present invention shuts down noise is easy and simple to handle and easy to implement.
Description
Technical field
The present invention relates to technical field of air conditioner refrigeration, particularly relate to a kind of multi-online air-conditioning system and shut down noise
Control method.
Background technology
Owing to connected air conditioner system indoor set is substantially by electronic expansion valve controls in the market, and air-conditioning
System often occurs that in refrigeration indoor set reaches design temperature and shuts down, protects the various shutdown situations such as shutdown, remote-control closedown.Stop
After machine, the electric expansion valve of indoor set is switched on certain aperture, to realize system high-low pressure pressure balance.
In high-low pressure pressure equalization process, there will be coolant throttle after indoor set liquid refrigerants impact electric expansion valve swollen
The swollen coolant pneumatic noise sending " silk silk ", this coolant pneumatic noise easily makes user feel uncomfortable after the shutdown of indoor,
Affect user job and life.
Summary of the invention
It is contemplated that solve one of above-mentioned technical problem the most to a certain extent or provide at a kind of useful business
Industry selects.To this end, it is an object of the present invention to propose a kind of multi-online air-conditioning system having and eliminating shutdown noise.
Further object is that proposing this multi-online air-conditioning system a kind of shuts down the control method of noise.
Multi-online air-conditioning system according to embodiments of the present invention, including: compressor；Cross valve, described cross valve is with described
The outlet of compressor；Outdoor heat exchanger, described outdoor heat exchanger is connected by the outlet of described cross valve with described compressor
Logical；Multiple indoor sets, the plurality of indoor set be connected in parallel with each other and the plurality of indoor set the first end respectively with described room
External heat exchanger connects；Electric expansion valve, described electric expansion valve is located at the first end of described outdoor heat exchanger and described indoor set
Between, described electric expansion valve includes that the first electric expansion valve and the second electric expansion valve, described first electric expansion valve are located at
Outdoor and one end connects with described outdoor heat exchanger, the plurality of second electric expansion valve be located at being connected in parallel with each other indoor and
One end other end with described first electric expansion valve respectively connects, the other end of the plurality of second electric expansion valve respectively with
First end connection of the plurality of indoor set；Fluid reservoir, described fluid reservoir leads to for the import storing coolant and described fluid reservoir
Cross described cross valve to connect with the second end of described indoor set, the outlet of described fluid reservoir and the inlet communication of described compressor,
With single-pass electromagnetic valve, described single-pass electromagnetic valve is located between the outlet of described compressor and the import of described fluid reservoir to control institute
State compressor to connect with the direct of described fluid reservoir, when described compressor is shut down under cooling condition, open described single-pass electromagnetism
Valve, and close described second electric expansion valve opened.
Thus, multi-online air-conditioning system according to embodiments of the present invention, by opening while shutting down under cooling condition
Single-pass electromagnetic valve, and close the second electric expansion valve of having turned on and can thoroughly eliminate the liquid refrigerants of indoor set in flowing
To second electric expansion valve impact caused by noise, improve multi-online air-conditioning system use comfortableness.It addition, the present invention
The multi-online air-conditioning system simple in construction of embodiment, it is convenient and cheap for manufacturing cost to manipulate.
It addition, multi-online air-conditioning system according to the above embodiment of the present invention can also have following additional technology spy
Levy:
According to one embodiment of present invention, during multi-online air-conditioning system start, described single-pass electromagnetic valve is in cut out shape
State, meanwhile, needs the second electric expansion valve of the described indoor set of refrigeration to be in pre-opening.
According to one embodiment of present invention, described second electric expansion valve opens initial opening in advance so that described coolant
Circulate in described multi-online air-conditioning system.
The multi-online air-conditioning system of embodiment shuts down the control method of noise according to a further aspect of the invention, including walking as follows
Rapid:
Compressor is opened single-pass electromagnetic valve and closes the second electric expansion valve opened while shutting down under cooling condition.
Thus, multi-online air-conditioning system according to embodiments of the present invention shuts down the control method of noise, by refrigeration work
Open single-pass electromagnetic valve while shutting down under condition, and close the second electric expansion valve having turned on, it is possible to thoroughly in decontamination chamber
The liquid refrigerants of machine to the noise caused by the second electric expansion valve impact, improves what multi-online air-conditioning system used in flowing
Comfortableness.It addition, the control method of the multi-online air-conditioning system shutdown noise of the embodiment of the present invention is easy and simple to handle and is prone to real
Execute.
It addition, the control method that multi-online air-conditioning system according to the above embodiment of the present invention shuts down noise can also have
Following additional technical characteristic:
According to one embodiment of present invention, also comprise the steps:
By start key to start described compressor cooling；
Close described single-pass electromagnetic valve and pre-described second electric expansion valve opening needs unlatching；
Detect whether that described single-pass electromagnetic valve is turned off and described second electric expansion valve has turned on；With
If be detected that described single-pass electromagnetic valve is turned off and described second electric expansion valve has turned on, start described pressure
Contracting machine.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is the connected mode schematic diagram of multi-online air-conditioning system according to embodiments of the present invention；With
Fig. 2 is the flow chart that multi-online air-conditioning system according to embodiments of the present invention shuts down the control method of noise.
Description of reference numerals:
10: compressor；11: compressor outlet；12: compressor inlet；20: cross valve；30: outdoor heat exchanger 40: multiple
Indoor set 51: the first electric expansion valve；52: the second electric expansion valves；60: fluid reservoir；61: fluid reservoir import；62: fluid reservoir
Outlet；70: single-pass electromagnetic valve.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time
Pin ", the orientation of the instruction such as " counterclockwise " or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of
Describe the present invention and simplification description rather than instruction or the device of hint indication or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；It can be machine
Tool connects, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part.For the ordinary skill in the art, can understand that above-mentioned term is at this as the case may be
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
Can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by it
Other characterisation contact between.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include that fisrt feature directly over second feature and oblique upper, or is merely representative of
Fisrt feature level height is less than second feature.
Below with reference to Fig. 1, multi-online air-conditioning system according to embodiments of the present invention is described.
Multi-online air-conditioning system according to embodiments of the present invention includes: compressor 10, cross valve 20, outdoor heat exchanger 30,
Multiple indoor sets 40, electric expansion valve, fluid reservoir 60 and single-pass electromagnetic valve 70.
Specifically, as it is shown in figure 1, the outlet 11 of compressor 10 connects with cross valve 20, outdoor heat exchanger 30 is by four
Logical valve 20 connects with the outlet 11 of compressor 10.First end (left end of indoor set 40 in Fig. 1) of multiple indoor sets 40 is with outdoor
Heat exchanger 30 connects, and second end (right-hand member of indoor set 40 in Fig. 1) of multiple indoor sets 40 passes through cross valve 20 and is used for storing
The import 61 of the fluid reservoir 60 of coolant connects, and the most multiple indoor sets 40 are connected in parallel between outdoor heat exchanger 30 and fluid reservoir 60, and
The outlet 62 of fluid reservoir 60 connects with the import 12 of compressor 10.
Coolant flows into outdoor heat exchanger 30 from the outlet 11 of compressor 10 through cross valve 20, then separately flows into indoor set
After, then flow into fluid reservoir 60 through cross valve 20, flow back to compressor from fluid reservoir 60 the most again, constitute the present invention multi-joint
The kind of refrigeration cycle of air conditioner system.
Electric expansion valve is located between outdoor heat exchanger 30 and the first end of indoor set 40, and includes the first electronic expansion
Valve 51 and the second electric expansion valve 52.First electric expansion valve 51 is located at outdoor and one end and connects with outdoor heat exchanger 30, multiple
Second electric expansion valve 52 is located at indoor and one end respectively with the other end of the first electric expansion valve 51 even with being connected in parallel with each other
Logical, and the other end the first end with multiple indoor sets 40 respectively connects.
Single-pass electromagnetic valve 70 is located between the outlet 11 of compressor 10 and the import 61 of fluid reservoir 60 to control compressor 10
With directly connecting of fluid reservoir 60.
When the air conditioning system carrying out freezing receives stopping signal, shut down (i.e. multi-gang air-conditioner system at compressor 10
System is shut down) while open single-pass electromagnetic valve 70, and close the second electric expansion valve 52 of having turned on, i.e. close those and be in system
Second electric expansion valve 52 of the indoor set 40 under cold operating mode, and those are already in the second electric expansion valve 52 of closed mode
Continue to remain off.
Air conditioning system shuts down by the high-low pressure pressure Fast-Balance in the unlatching of single-pass electromagnetic valve makes air conditioning system, and
Now close the second electric expansion valve 52 of unlatching it can be avoided that liquid refrigerants is between outdoor heat exchanger 30 and indoor set 40
Flowing, therefore, it is possible to thoroughly eliminate the liquid refrigerants of indoor set 40 in flowing to making an uproar caused by the second electric expansion valve impact
Sound.
Thus, multi-online air-conditioning system according to embodiments of the present invention, by opening while shutting down under cooling condition
Single-pass electromagnetic valve 70, and close the second electric expansion valve 52 of having turned on and can thoroughly eliminate the liquid refrigerants of indoor set 40 and exist
In flowing to second electric expansion valve impact caused by noise, improve multi-online air-conditioning system use comfortableness.It addition,
The multi-online air-conditioning system simple in construction of the embodiment of the present invention, it is convenient and cheap for manufacturing cost to manipulate.
After multi-online air-conditioning system according to embodiments of the present invention uses aforesaid way to shut down, it is again turned on needing before to close
Close single-pass electromagnetic valve 70, and the second electric expansion valve 52 needing the indoor set 40 of refrigeration is opened to initial opening in advance, i.e.
Ensure that coolant circulates in air conditioning system.Second electric expansion valve 52 of the indoor set 40 without opening then continues to keep
Closed mode.
It is to be appreciated that the multi-online air-conditioning system of the embodiment of the present invention does not limits for the quantity of indoor set 40,
Can be according to power and demand self-defining indoor set 40 quantity.
Multi-online air-conditioning system according to the present invention be will be described below and shut down the control method of noise.
Multi-online air-conditioning system according to the present invention shuts down the control method of noise, including shutting down part A, shuts down part A
Specifically comprise the following steps that
Step S10, when compressor 10 is shut down under cooling condition, opens single-pass electromagnetic valve 70 simultaneously, and closes unlatching
The second electric expansion valve 52 with the noise that causes owing to liquid refrigerants flows through the second electric expansion valve 52 of control.
Thus, multi-online air-conditioning system according to embodiments of the present invention shuts down the control method of noise, by refrigeration work
Open single-pass electromagnetic valve 70 while shutting down under condition, and close the second electric expansion valve 52 having turned on, it is possible to thoroughly eliminate
The liquid refrigerants of indoor set 40 to the noise caused by the second electric expansion valve impact, improves multi-online air-conditioning system in flowing
Use comfortableness.It addition, the embodiment of the present invention multi-online air-conditioning system shut down noise control method easy and simple to handle and
Easy to implement.
Additionally the control method of the multi-online air-conditioning system shutdown noise of the embodiment of the present invention also includes part B of starting shooting, and opens
Machine part B specifically comprises the following steps that
Step S20, by start key start compressor 10 start refrigeration, due to shut down time single-pass electromagnetic valve 70 unlatching with
And second closedown of electric expansion valve 52 so that now the kind of refrigeration cycle of air conditioning system is cut off, and the most now compressor 10 is first
Do not start.
Step S30, closes single-pass electromagnetic valve 70 and connects with the direct of fluid reservoir 60 to cut off compressor 10, and the most pre-
Open the second electric expansion valve 52 needing to open.So recover the kind of refrigeration cycle of whole air conditioning system.
Step S40, whether detection single-pass electromagnetic valve 70 has been switched off and whether the second electric expansion valve 52 has been switched on.
Step S50, if single-pass electromagnetic valve 70 has been switched off and the second electric expansion valve 52 has been switched on, then starts compression
Machine 10 freezes；Otherwise the most do not start compressor 10 to freeze.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is without departing from the principle of the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, revise, replace and modification.
Claims (4)
1. a multi-online air-conditioning system, it is characterised in that including:
Compressor；
The outlet of cross valve, described cross valve and described compressor；
Outdoor heat exchanger, described outdoor heat exchanger is by the outlet of described cross valve with described compressor；
Multiple indoor sets, the plurality of indoor set be connected in parallel with each other and the plurality of indoor set the first end respectively with described room
External heat exchanger connects；
Electric expansion valve, described electric expansion valve is located between described outdoor heat exchanger and the first end of described indoor set, described
Electric expansion valve includes the first electric expansion valve and multiple second electric expansion valve, described first electric expansion valve be located at outdoor and
One end connects with described outdoor heat exchanger, and the plurality of second electric expansion valve is located at indoor and one end with being connected in parallel with each other and divides
Not connecting with the other end of described first electric expansion valve, the other end of the plurality of second electric expansion valve is many with described respectively
First end connection of individual indoor set；
Fluid reservoir, described fluid reservoir is for storing the import of coolant and described fluid reservoir by described cross valve and described indoor set
The second end connection, outlet and the inlet communication of described compressor of described fluid reservoir；With
Single-pass electromagnetic valve, described single-pass electromagnetic valve is located between the outlet of described compressor and the import of described fluid reservoir to control
Described compressor directly connects with described fluid reservoir；
When described compressor is shut down under cooling condition, open described single-pass electromagnetic valve, and close described second electronics opened
Expansion valve；
During the start of described multi-online air-conditioning system, described single-pass electromagnetic valve is closed, and meanwhile, needs the described room of refrigeration
Second electric expansion valve of interior machine is in pre-opening.
Multi-online air-conditioning system the most according to claim 1, it is characterised in that described second electric expansion valve is opened in advance
To initial opening so that described coolant circulates in described multi-online air-conditioning system.
3. the multi-online air-conditioning system as according to any one of claim 1-2 shuts down a control method for noise, its feature
It is, comprises the steps:
1) open single-pass electromagnetic valve while compressor is shut down under cooling condition and close the second electric expansion valve opened.
Noise control method the most according to claim 3, it is characterised in that also comprise the steps:
2) start key is pressed to start described compressor cooling；
3) described single-pass electromagnetic valve and pre-described second electric expansion valve opening needs unlatching are closed；
4) detect described single-pass electromagnetic valve whether to be turned off and described second electric expansion valve has turned on；With
5) if be detected that described single-pass electromagnetic valve is turned off and described second electric expansion valve has turned on, described compression is started
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477318.XA CN103836773B (en) | 2012-11-21 | 2012-11-21 | Multi-online air-conditioning system and shutdown noise control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210477318.XA CN103836773B (en) | 2012-11-21 | 2012-11-21 | Multi-online air-conditioning system and shutdown noise control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103836773A CN103836773A (en) | 2014-06-04 |
| CN103836773B true CN103836773B (en) | 2016-08-17 |
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| CN201210477318.XA Expired - Fee Related CN103836773B (en) | 2012-11-21 | 2012-11-21 | Multi-online air-conditioning system and shutdown noise control method thereof |
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| CN104101054B (en) * | 2014-07-07 | 2017-01-11 | 广东美的暖通设备有限公司 | Control method and system of variable refrigerant flow (VRF) air conditioner |
| CN113357864B (en) * | 2017-08-09 | 2023-01-20 | 重庆海尔制冷电器有限公司 | Refrigerator control method and device |
| CN107576144B (en) * | 2017-08-09 | 2021-02-26 | 海尔智家股份有限公司 | Shutdown method and device for refrigerator |
| CN108168169B (en) * | 2017-12-01 | 2020-09-18 | 青岛海尔空调电子有限公司 | Noise control method of multi-connected air conditioning system |
| CN108413586B (en) * | 2018-01-22 | 2020-02-21 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner noise reduction control method and multi-split air conditioner |
| CN109028492B (en) * | 2018-08-14 | 2019-10-11 | 宁波奥克斯电气股份有限公司 | Expansion valve control method, device and air conditioner |
| CN109724218B (en) * | 2019-01-04 | 2021-04-06 | 青岛海信日立空调***有限公司 | Multi-split air-conditioning floor heating system and control method |
| CN110631285B (en) * | 2019-09-30 | 2021-02-23 | 广东美的暖通设备有限公司 | Multi-split system and control method thereof |
| CN111397164B (en) * | 2020-03-31 | 2022-04-19 | 广东美的制冷设备有限公司 | Multi-split air conditioning system and control method and control device thereof |
| CN111536653B (en) * | 2020-05-18 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Noise control method and device, multi-split air conditioning system and storage medium |
| CN112344537B (en) * | 2020-11-17 | 2021-09-07 | 珠海格力电器股份有限公司 | Noise reduction control method and device for indoor unit of multi-split air conditioner and multi-split air conditioner |
| CN113531767B (en) * | 2021-07-26 | 2022-08-12 | 珠海格力电器股份有限公司 | Control method and device of air conditioning system and air conditioning system |
| CN115167558B (en) * | 2022-06-23 | 2023-11-17 | 北京京仪自动化装备技术股份有限公司 | Control method and control system of temperature control system and temperature control system |
| CN115371146B (en) * | 2022-09-22 | 2023-04-18 | 宁波奥克斯电气股份有限公司 | Multi-pipe fixed air conditioner System and control method thereof |
| CN115614851B (en) * | 2022-10-12 | 2024-07-02 | 珠海格力电器股份有限公司 | Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium |
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| Publication number | Publication date |
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| CN103836773A (en) | 2014-06-04 |
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