CN109708251A - Defrosting control method and device - Google Patents
Defrosting control method and device Download PDFInfo
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- CN109708251A CN109708251A CN201811384979.1A CN201811384979A CN109708251A CN 109708251 A CN109708251 A CN 109708251A CN 201811384979 A CN201811384979 A CN 201811384979A CN 109708251 A CN109708251 A CN 109708251A
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- defrost
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Abstract
The present invention provides a kind of defrosting control method and devices, wherein this method comprises: detecting high-pressure and defrost temperature during air-conditioner set defrost；In the case where the high-pressure is greater than setting pressure or, the defrost temperature is greater than set temperature, close compressor opens outdoor fan；After outdoor fan runs scheduled duration, outdoor fan is closed, opens compressor.The reliability and heating effect of unit can be improved through the above scheme.
Description
Technical field
The present invention relates to equipment control technology fields, in particular to a kind of defrosting control method and device.
Background technique
Air-conditioner set under cryogenic heating operation when, since outdoor temperature is relatively low and humidity is larger, lead to outdoor
Heat exchanger surface is easy to appear frosting situation, if can not be defrosted or be defrosted in time not enough thoroughly, can reduce and is
The heat transfer effect of system.
For net for air-source heat pump units, when unit enters defrost, outdoor fan and indoor unit can be closed, compressor is only relied on
Acting passes through the modes decision-making system defrost condition such as defrost time, system pressure, system temperature to defrost.However, system defrost
A large amount of water can be generally generated in the process, if cannot exclude in time, it will reduce defrost speed, furthermore water is at low ambient temperatures
It can congeal into ice, increase defrost time and difficulty, cause defrost that can not remove thoroughly, influence the operational reliability in unit later period
And the effect of heating.
In view of the above-mentioned problems, not yet proposing effective solution mode at present.
Summary of the invention
The embodiment of the invention provides a kind of defrosting control method and devices to make defrost to improve the defrost efficiency of system
More thoroughly, so as to improve the reliability of unit and the effect of heating.
A kind of defrosting control method, comprising:
During air-conditioner set defrost, high-pressure and defrost temperature are detected；
In the case where the high-pressure is greater than setting pressure or, the defrost temperature is greater than set temperature, pressure is closed
Contracting machine opens outdoor fan；
After outdoor fan runs scheduled duration, outdoor fan is closed, opens compressor.
In one embodiment, outdoor fan is being closed, after opening compressor, the method also includes:
Determine whether to meet and exits defrost condition；
In the case where determining that satisfaction exits defrost condition, exit defrost, compressor heating operation, open outdoor fan and
Indoor fan.
In one embodiment, after determining whether that satisfaction exits defrost condition, further includes:
In the case where determination is unsatisfactory for the proposition defrost condition, continue defrost operation；
Reach it is described exit defrost condition in the case where, exit defrost, close compressor starts outdoor fan and interior
Blower after scheduled duration, opens compressor heating operation.
In one embodiment, described before detecting high-pressure and defrost temperature during air-conditioner set defrost
Method further include:
Determine whether to meet defrost condition；
In the case where determination meets the defrost condition, into defrost, while four-way reversing valve commutation, by electronics
Expansion valve is opened to defrost aperture, closes outdoor fan and indoor fan, compressor continue to run.
In one embodiment, the air-conditioner set is net for air-source heat pump units.
A kind of defrosting control device, comprising:
Detection module, for detecting high-pressure and defrost temperature during air-conditioner set defrost；
Opening module, for being greater than setting pressure in the high-pressure, or, the defrost temperature is greater than set temperature
In the case of, close compressor opens outdoor fan；
Closedown module opens compressor for closing outdoor fan after outdoor fan runs scheduled duration.
In one embodiment, above-mentioned apparatus further include:
First determining module, for after closing outdoor fan, unlatching compressor, it is determined whether satisfaction exits defrost item
Part；
Module is exited, for exiting defrost in the case where determining that satisfaction exits defrost condition, compressor heating operation,
Open outdoor fan and indoor fan.
In one embodiment, above-mentioned apparatus further include:
Module is run, for continuing defrost operation in the case where determination is unsatisfactory for the proposition defrost condition；Reaching
It is described exit defrost condition in the case where, exit defrost, close compressor starts outdoor fan and indoor fan, scheduled duration
Afterwards, compressor heating operation is opened.
In one embodiment, above-mentioned apparatus further include:
Second determining module, for before detecting high-pressure and defrost temperature, determining during air-conditioner set defrost
Whether defrost condition is met；
Defrost module, for into defrost, commutating in four-way reversing valve in the case where determination meets the defrost condition
While, electric expansion valve is opened to defrost aperture, outdoor fan is closed and indoor fan, compressor continues to run.
A kind of air-conditioning, comprising: above-mentioned defrosting control device.
A kind of network equipment, comprising: memory, processor and storage are on a memory and the meter that can run on a processor
The step of calculation machine program, the processor realizes the above method when executing the computer program.
A kind of non-volatile computer readable storage medium storing program for executing is stored thereon with computer program, the computer program quilt
The step of above method is realized when processor executes.
In the above-described embodiments, during air-conditioner set defrost, outdoor heat exchanger surface is removed using outdoor fan
Moisture content, so as to improve the defrost efficiency of system, so that defrost is more thorough, to improve the reliability and heating effect of unit
Fruit.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the method flow diagram of defrosting control method according to an embodiment of the present invention；
Fig. 2 is the architecture diagram of air-conditioner set according to an embodiment of the present invention；
Fig. 3 is the timing diagram of defrosting control according to an embodiment of the present invention；
Fig. 4 is the another method flow chart of defrosting control method according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of defrosting control device according to an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In view of that when unit enters defrost, outdoor fan and indoor unit can be closed, only relied on for air-conditioner set
Compressor work defrosts, however, a large amount of water can be generally generated during system defrost, if cannot exclude in time, it will
Defrost speed is reduced, furthermore water can congeal into ice at low ambient temperatures, increase defrost time and difficulty, cause defrost clear
Except thorough, the operational reliability in unit later period and the effect of heating are influenced.
In order to solve this problem, it is contemplated that it can use the moisture content that outdoor fan removes outdoor heat exchanger surface, so as to
To improve the defrost efficiency of system, so that defrost is more thorough, to improve the reliability and heating effect of unit.
Based on this, in this example, a kind of defrosting control method is provided, as shown in Figure 1, may include steps of:
Step 101: during air-conditioner set defrost, detecting high-pressure and defrost temperature；
Step 102: being greater than setting pressure in the high-pressure, or, the case where defrost temperature is greater than set temperature
Under, close compressor opens outdoor fan；
Step 103: after outdoor fan runs scheduled duration, closing outdoor fan, open compressor.
That is, during air-conditioning defrost, if it find that high-pressure is greater than setting pressure, or, defrost temperature is greater than setting
Temperature is not discharged in time then the moisture content that can characterize outdoor heat exchanger surface is relatively more, therefore, at this moment can close pressure
Contracting machine opens outdoor fan operation a period of time, so as to remove the moisture content on outdoor heat exchanger surface, then switches to pass again
Outdoor fan is closed, compressor is opened, continues to defrost.
During defrosting, it may determine whether to meet and exit defrost condition:
1) in the case where determining that satisfaction exits defrost condition, defrost is exited, compressor heating operation opens outdoor fan
And indoor fan.
2) in the case where determination is unsatisfactory for the proposition defrost condition, continue defrost operation；Reaching the exiting
In the case where ice-lolly part, defrost is exited, close compressor starts outdoor fan and indoor fan, after scheduled duration, opens compression
Machine heating operation.
That is, to improve heating efficiency, switching to heating mould to more effectively remove the moisture content on outdoor heat exchanger surface
When formula, it can first start outdoor fan and indoor fan operation a period of time removes moisture content, then control compression mechanism again
Heat operation, to promote heating efficiency.
During 101 air-conditioner set defrost of above-mentioned steps, before detecting high-pressure and defrost temperature, it can be determined that
It is no to meet defrost condition；In the case where determination meets the defrost condition, into defrost, in the same of four-way reversing valve commutation
When, electric expansion valve is opened to defrost aperture, outdoor fan is closed and indoor fan, compressor continues to run.
Above-mentioned air-conditioner set can be, but not limited to be net for air-source heat pump units.
The above method is illustrated below with reference to a specific embodiment, it is important to note, however, that the specific implementation
Example does not constitute an undue limitation on the present application merely to the application is better described.
During solving existing defrost, the water that defrost generates influences defrost efficiency and unit defrost is not thorough
The problem of.In this example, a kind of defrosting control method of net for air-source heat pump units is proposed, in unit defrost operational process,
Make defrost more to improve the defrost efficiency of system by the moisture content for rationally outdoor fan being utilized to remove outdoor heat exchanger surface
Thoroughly, so as to improving the reliability of unit and the effect of heating.
As shown in Fig. 2, air-conditioner set may include: compressor 1, four-way reversing valve 2, outdoor heat exchanger 3, outdoor fan 4,
Throttle valve 5, indoor heat exchanger 6, indoor fan 7 and gas-liquid separator 8.
Based on above-mentioned air-conditioner set, net for air-source heat pump units heating operation circulation is as follows: 1 → four-way reversing valve of compressor
2 → indoor heat exchanger, 6 → throttle valve, 5 → outdoor heat exchanger, 3 → four-way reversing valve, 2 → gas-liquid separator, 8 → compressor 1.
Net for air-source heat pump units defrost operation circulation is as follows: 1 → four-way reversing valve of compressor 2 → outdoor indoor heat exchanger 3
8 → compressor of → throttle valve 5 → indoor heat exchanger, 6 → four-way reversing valve, 2 → gas-liquid separator 1.
As shown in figure 3, be the timing diagram of air-conditioning defrost, as shown in figure 4, be air-conditioning defrost flow chart, as shown in figure 4,
When determining that unit meets defrost condition, system electronic expansion valve is turned immediately extremely while four-way reversing valve commutates into defrost
Defrost target step number, outdoor fan and inner blower simultaneously close off, and compressor continues to run.
During defrost, when detecting system high pressure pressure F > Fo or defrost temperature Te > To, close compressor is stood
Outdoor fan is opened, outdoor fan is closed after running t seconds, continues to start compressor, meanwhile, determine whether to meet and exits heating
Defrost condition exits defrost condition if met, and system exits defrost, four-way reversing valve commutation, electric expansion valve open to
Initial opening is heated, outdoor fan, indoor fan, heating operation are opened；If being unsatisfactory for exiting defrost condition, continue
Defrost operation, after satisfaction exits defrost condition, close compressor, while starting outdoor fan, indoor fan, four-way commutation
Valve commutation, electric expansion valve are opened to heating initial opening, restart compressor heating operation after t seconds.
Unit reliability and unit heating heat transfer effect can be improved through the above way.
Based on the same inventive concept, a kind of defrosting control device is additionally provided in the embodiment of the present invention, such as following implementation
Described in example.Since the principle that defrosting control device solves the problems, such as is similar to defrosting control method, the reality of defrosting control device
The implementation that may refer to defrosting control method is applied, overlaps will not be repeated.It is used below, term " unit " or " mould
The combination of the software and/or hardware of predetermined function may be implemented in block ".Although device described in following embodiment is preferably with soft
Part is realized, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.Fig. 5 is of the invention real
A kind of structural block diagram of the defrosting control device of example is applied, as shown in figure 5, may include: detection module 501,502 and of opening module
Closedown module 503 is below illustrated the structure.
Detection module 501, for detecting high-pressure and defrost temperature during air-conditioner set defrost；
Opening module 502, for being greater than setting pressure in the high-pressure, or, the defrost temperature is greater than setting temperature
In the case where degree, close compressor opens outdoor fan；
Closedown module 503 opens compressor for closing outdoor fan after outdoor fan runs scheduled duration.
In one embodiment, above-mentioned apparatus can also include: the first determining module, for closing outdoor fan,
After unlatching compressor, it is determined whether satisfaction exits defrost condition；Module is exited, for exiting defrost condition in determining satisfaction
In the case of, defrost is exited, compressor heating operation opens outdoor fan and indoor fan.
In one embodiment, above-mentioned apparatus can also include: operation module, for being unsatisfactory for the proposition in determination
In the case where defrost condition, continue defrost operation；Reach it is described exit defrost condition in the case where, exit defrost, close pressure
Contracting machine, starts outdoor fan and indoor fan, after scheduled duration, opens compressor heating operation.
In one embodiment, above-mentioned apparatus can also include: the second determining module, in air-conditioner set defrost
Cheng Zhong, before detecting high-pressure and defrost temperature, it is determined whether meet defrost condition；Defrost module, for determining satisfaction
In the case where the defrost condition, electric expansion valve is opened to defrost and is opened while four-way reversing valve commutation into defrost
Degree, closes outdoor fan and indoor fan, compressor continue to run.
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality
Apply technical solution described in mode.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should
Storage medium includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
It can be seen from the above description that the embodiment of the present invention realizes following technical effect: in air-conditioner set defrost
In the process, the moisture content on outdoor heat exchanger surface is removed using outdoor fan, so as to improve the defrost efficiency of system, so that changing
Frost is more thorough, to improve the reliability and heating effect of unit.
Although mentioning different specific embodiments in teachings herein, the application is not limited to be industry
Situation described in standard or embodiment etc., certain professional standards or the implementation base described using customized mode or embodiment
On plinth embodiment modified slightly also may be implemented above-described embodiment it is identical, it is equivalent or it is close or deformation after it is anticipated that
Implementation result.It, still can be with using these modifications or the embodiment of deformed data acquisition, processing, output, judgment mode etc.
Belong within the scope of the optional embodiment of the application.
Although this application provides the method operating procedure as described in embodiment or flow chart, based on conventional or noninvasive
The means for the property made may include more or less operating procedure.The step of enumerating in embodiment sequence is only numerous steps
One of execution sequence mode, does not represent and unique executes sequence.It, can when device or client production in practice executes
To execute or parallel execute (such as at parallel processor or multithreading according to embodiment or method shown in the drawings sequence
The environment of reason, even distributed data processing environment).The terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that process, method, product or equipment including a series of elements are not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, product or equipment
Intrinsic element.In the absence of more restrictions, be not precluded include the process, method of the element, product or
There is also other identical or equivalent elements in person's equipment.
Device that above-described embodiment illustrates or module etc. can specifically realize by computer chip or entity, or by having
There is the product of certain function to realize.For convenience of description, it is divided into various modules when description apparatus above with function to retouch respectively
It states.Certainly, the function of each module can be realized in the same or multiple software and or hardware when implementing the application,
The module for realizing same function can be realized by the combination of multiple submodule etc..Installation practice described above is only
Schematically, for example, the division of the module, only a kind of logical function partition, can there is other draw in actual implementation
The mode of dividing, such as multiple module or components can be combined or can be integrated into another system, or some features can be ignored,
Or it does not execute.
It is also known in the art that other than realizing controller in a manner of pure computer readable program code, it is complete
Entirely can by by method and step carry out programming in logic come so that controller with logic gate, switch, specific integrated circuit, programmable
Logic controller realizes identical function with the form for being embedded in microcontroller etc..Therefore this controller is considered one kind
Hardware component, and the structure that the device for realizing various functions that its inside includes can also be considered as in hardware component.Or
Person even, can will be considered as realizing the device of various functions either the software module of implementation method can be hardware again
Structure in component.
The application can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Generally, program module includes routines performing specific tasks or implementing specific abstract data types, programs, objects, group
Part, data structure, class etc..The application can also be practiced in a distributed computing environment, in these distributed computing environments,
By executing task by the connected remote processing devices of communication network.In a distributed computing environment, program module can
To be located in the local and remote computer storage media including storage equipment.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
(can be personal computer, mobile terminal, server or the network equipment etc.) executes each embodiment of the application or implementation
Method described in certain parts of example.
Each embodiment in this specification is described in a progressive manner, the same or similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.The application can be used for crowd
In mostly general or special purpose computing system environments or configuration.Such as: personal computer, server computer, handheld device or
Portable device, laptop device, multicomputer system, microprocessor-based system, set top box, programmable electronics set
Standby, network PC, minicomputer, mainframe computer, distributed computing environment including any of the above system or equipment etc..
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which appended embodiment includes these deformations and changes without departing from the application.
Claims (12)
1. a kind of defrosting control method characterized by comprising
During air-conditioner set defrost, high-pressure and defrost temperature are detected；
In the case where the high-pressure is greater than setting pressure or, the defrost temperature is greater than set temperature, compression is closed
Machine opens outdoor fan；
After outdoor fan runs scheduled duration, outdoor fan is closed, opens compressor.
2. the method according to claim 1, wherein close outdoor fan, open compressor after, the side
Method further include:
Determine whether to meet and exits defrost condition；
In the case where determining that satisfaction exits defrost condition, defrost is exited, compressor heating operation opens outdoor fan and interior
Blower.
3. according to the method described in claim 2, it is characterized in that, also being wrapped after determining whether that satisfaction exits defrost condition
It includes:
In the case where determination is unsatisfactory for the proposition defrost condition, continue defrost operation；
Reach it is described exit defrost condition in the case where, exit defrost, close compressor, starting outdoor fan and indoor wind
Machine after scheduled duration, opens compressor heating operation.
4. the method according to claim 1, wherein during air-conditioner set defrost, detection high-pressure and
Before defrost temperature, the method also includes:
Determine whether to meet defrost condition；
In the case where determination meets the defrost condition, into defrost, while four-way reversing valve commutation, by electronic expansion
Valve is opened to defrost aperture, closes outdoor fan and indoor fan, compressor continue to run.
5. the method according to claim 1, wherein the air-conditioner set is net for air-source heat pump units.
6. a kind of defrosting control device characterized by comprising
Detection module, for detecting high-pressure and defrost temperature during air-conditioner set defrost；
Opening module, for being greater than setting pressure in the high-pressure, or, the case where defrost temperature is greater than set temperature
Under, close compressor opens outdoor fan；
Closedown module opens compressor for closing outdoor fan after outdoor fan runs scheduled duration.
7. device according to claim 6, which is characterized in that further include:
First determining module, for after closing outdoor fan, unlatching compressor, it is determined whether satisfaction exits defrost condition；
Module is exited, in the case where determining that satisfaction exits defrost condition, exiting defrost, compressor heating operation is opened
Outdoor fan and indoor fan.
8. device according to claim 7, which is characterized in that further include:
Module is run, for continuing defrost operation in the case where determination is unsatisfactory for the proposition defrost condition；It is described reaching
In the case where exiting defrost condition, defrost is exited, close compressor starts outdoor fan and indoor fan, after scheduled duration, opens
Open compressor heating operation.
9. device according to claim 6, which is characterized in that further include:
Second determining module is used for during air-conditioner set defrost, before detection high-pressure and defrost temperature, it is determined whether
Meet defrost condition；
Defrost module, for into defrost, commutating in four-way reversing valve same in the case where determination meets the defrost condition
When, electric expansion valve is opened to defrost aperture, outdoor fan is closed and indoor fan, compressor continues to run.
10. a kind of air-conditioning, comprising: defrosting control device described in any one of claim 6 to 9.
11. a kind of network equipment, comprising: memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, which is characterized in that the processor realizes any one of claims 1 to 5 institute when executing the computer program
The step of stating method.
12. a kind of non-volatile computer readable storage medium storing program for executing, is stored thereon with computer program, which is characterized in that the meter
The step of calculation machine program realizes any one of claims 1 to 5 the method when being executed by processor.
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| CN201811384979.1A CN109708251A (en) | 2018-11-20 | 2018-11-20 | Defrosting control method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384979.1A CN109708251A (en) | 2018-11-20 | 2018-11-20 | Defrosting control method and device |
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| CN109708251A true CN109708251A (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111141006A (en) * | 2019-12-30 | 2020-05-12 | 宁波奥克斯电气股份有限公司 | Control method and control device for defrosting of air conditioner, storage medium and air conditioner |
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Application publication date: 20190503 |