CN105115209B - Air-cooled heat pump cold-hot water machine and its defrosting control method - Google Patents
Air-cooled heat pump cold-hot water machine and its defrosting control method Download PDFInfo
- Publication number
- CN105115209B CN105115209B CN201510617490.4A CN201510617490A CN105115209B CN 105115209 B CN105115209 B CN 105115209B CN 201510617490 A CN201510617490 A CN 201510617490A CN 105115209 B CN105115209 B CN 105115209B
- Authority
- CN
- China
- Prior art keywords
- air
- water system
- heating water
- heat exchanger
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-cooled heat pump cold-hot water machine and its defrosting control method, wherein, air-cooled heat pump cold-hot water machine includes the first heating water system and the second heating water system, the second air-conditioning heat exchanger in the first air-conditioning heat exchanger and the second heating water system in first heating water system shares a blower fan, and this method comprises the following steps：Detection outdoor environment temperature T4, temperature T3a and T3b in real time；The △ Ta of the first air-conditioning heat exchanger are obtained according to T3a, and the △ Tb of the second air-conditioning heat exchanger are obtained according to T3b；When judging that air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost according to T4, then according to the heating water system of △ Ta and △ Tb controls first and the second heating water system alternating heating operation, defrost is carried out with the air-conditioning heat exchanger that the continuous service by blower fan makes to be not in exchanging heat working condition.This method, using the heating effect for continuing by carry out defrost, improving air-cooled heat pump cold-hot water machine of blower fan, improves Consumer's Experience by switching between system.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of defrosting control method and one of air-cooled heat pump cold-hot water machine
Kind air-cooled heat pump cold-hot water machine.
Background technology
For air heat pump type air-conditioning, in heating operation, it is necessary to absorb heat from air, but the change of environment temperature
Change, domestic hot water side heat exchanger frosting can be caused so that air heat pump type air-conditioning heating ability and efficiency decline.In order to avoid heating is imitated
Fruit is deteriorated, and air heat pump type air-conditioning can run defrost pattern and be defrosted, and defrost pattern can not heat, finally to entirety
Heating effect have a great impact.
In correlation technique, air heat pump type air-conditioning is when during defrost, compressor operating, four-way valve commutation while wind
Machine is shut down, and air heat pump type air-conditioning switches to refrigerating operaton, and defrost is carried out by high temperature refrigerant, after white all thawings,
Defrost is exited, then proceeds by heating.It follows that defrost process is process of refrigerastion, water temperature can be impacted, so as to shadow
Complete machine capability is rung, influences Consumer's Experience.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention
One purpose is to propose a kind of defrosting control method of air-cooled heat pump cold-hot water machine, it is not necessary to controls air-cooled heat pump cold-hot water machine
Refrigerating operaton and blowing-out machine are converted to carry out defrost, but by the heating water system of control first and the second heating water system it
Between switching to utilize the heating effect for continuing by carry out defrost, improving air-cooled heat pump cold-hot water machine of blower fan, improve user
Experience.
It is another object of the present invention to propose a kind of air-cooled heat pump cold-hot water machine.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of defrosting control of air-cooled heat pump cold-hot water machine
Method, the air-cooled heat pump cold-hot water machine include the first heating water system and the second heating water system, wherein, first heating
The second air-conditioning heat exchanger in the first air-conditioning heat exchanger and the second heating water system in water system shares a blower fan, institute
Defrosting control method is stated to comprise the following steps：Detection outdoor environment temperature T4 in real time, and the first air-conditioning heat exchange is detected in real time
The inlet temperature T3a of device and second air-conditioning heat exchanger inlet temperature T3b；According to first air-conditioning detected in real time
The inlet temperature T3a of heat exchanger obtains the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger, and according to real-time detection
The inlet temperature T3b of second air-conditioning heat exchanger obtain the inlet temperature rate of change △ Tb of second air-conditioning heat exchanger；
When the air-cooled heat pump cold-hot water machine enters defrost pattern, judge whether to control the wind according to the outdoor environment temperature T4
Cold-heat pump water chiller/heater is run in a manner of rotation defrost；If the air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost,
Then become according to the inlet temperature of the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger and second air-conditioning heat exchanger
The rate △ Tb controls first heating water system and the second heating water system alternating heating operation, to pass through the blower fan
Continuous service make to be not in the to exchange heat air-conditioning heat exchanger of working condition carry out defrost.
The defrosting control method of air-cooled heat pump cold-hot water machine according to embodiments of the present invention, detects outdoor environment temperature in real time
T4, and the inlet temperature T3a of the first air-conditioning heat exchanger and the inlet temperature T3b, Ran Houtong of the second air-conditioning heat exchanger are detected in real time
When the outdoor environment temperature T4 detected in real time is to judge that air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to first
Inlet temperature rate of change △ Ta of the air-conditioning heat exchanger and inlet temperature rate of change △ Tb of the second air-conditioning heat exchanger control first
Water system and the second heating water system alternating heating operation are heated, makes to be not in the work shape that exchanges heat with the continuous service by blower fan
The air-conditioning heat exchanger of state carries out defrost, is converted to refrigerating operaton without control air-cooled heat pump cold-hot water machine and blowing-out machine comes
Defrost is carried out, greatly improves the heating effect of air-cooled heat pump cold-hot water machine, improves Consumer's Experience.
According to one embodiment of present invention, when the air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if
The outdoor environment temperature T4 is more than the first preset temperature, then controls the air-cooled heat pump cold-hot water machine to be transported in a manner of rotation defrost
OK；If the outdoor environment temperature T4 is less than or equal to first preset temperature, the air-cooled heat pump cold-hot water is controlled
Machine is run with conventional Defrost mode.
According to one embodiment of present invention, according to the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger and institute
State the inlet temperature rate of change △ Tb controls first heating water system of the second air-conditioning heat exchanger and the second heating water system
System alternating heating operation, is specifically included：A, the compressor in the first heating water system is controlled to start shooting so that first system
Hot-water heating system heating operation, and obtain the described first accumulation for heating water system after the described first heating water system heating operation
Heat pamp；B, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value or first air-conditioning
When the inlet temperature rate of change △ Ta of heat exchanger are more than or equal to the first preset value, the compression in control the first heating water system
Machine is shut down, and the blower fan continues to run with, and controls the compressor in the second heating water system to start shooting so that second system
Hot-water heating system heating operation, and the tired of the second heating water system is obtained after the described second heating water system heating operation
Product heat pamp；C, when the accumulation heat pamp of the described second heating water system reaches the second time threshold or second sky
When adjusting the inlet temperature rate of change △ Tb of heat exchanger to be more than or equal to first preset value, in control the second heating water system
Compressor shutdown, the blower fan continues to run with, and returns and perform step a.
According to one embodiment of present invention, according to the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger and institute
State the inlet temperature rate of change △ Tb controls first heating water system of the second air-conditioning heat exchanger and the second heating water system
System alternating heating operation, specifically also includes：When the accumulation heat pamp of the described first heating water system is not up to described first
Between inlet temperature rate of change △ Ta of threshold value and first air-conditioning heat exchanger when being less than first preset value, control described the
One heating water system continues heating operation.
According to one embodiment of present invention, according to the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger and institute
State the inlet temperature rate of change △ Tb controls first heating water system of the second air-conditioning heat exchanger and the second heating water system
System alternating heating operation, specifically also includes：When the accumulation heat pamp of the described second heating water system is not up to described second
Between inlet temperature rate of change △ Tb of threshold value and second air-conditioning heat exchanger when being less than first preset value, control described the
Two heating water systems continue heating operation.
To reach above-mentioned purpose, a kind of air-cooled heat pump cold-hot water machine that another aspect of the present invention embodiment proposes, including：The
One heating water system and the second heating water system, described first heats the first air-conditioning heat exchanger and second system in water system
The second air-conditioning heat exchanger in hot-water heating system shares a blower fan；First temperature detecting module, for detecting outdoor environment in real time
Temperature T4；Second temperature detection module, for detecting the inlet temperature T3a of first air-conditioning heat exchanger in real time；3rd temperature
Detection module, for detecting the inlet temperature T3b of second air-conditioning heat exchanger in real time；Control module, for according to inspection in real time
The inlet temperature T3a for first air-conditioning heat exchanger surveyed obtains the inlet temperature rate of change △ of first air-conditioning heat exchanger
Ta, and entering for second air-conditioning heat exchanger is obtained according to the inlet temperature T3b of second air-conditioning heat exchanger detected in real time
Mouth rate of temperature change △ Tb, and when the air-cooled heat pump cold-hot water machine enters defrost pattern according to the outdoor environment temperature
T4 judges whether to control the air-cooled heat pump cold-hot water machine to run in a manner of rotation defrost, wherein, if the air-cooled heat-pump cold
Hot water machine is run in a manner of rotation defrost, and the control module is according to the inlet temperature rate of change △ of first air-conditioning heat exchanger
The Ta and inlet temperature rate of change △ Tb of the second air-conditioning heat exchanger controls first heating water system and second system
Hot-water heating system replaces heating operation, and the air-conditioning heat exchanger for being not in heat exchange working condition is made with the continuous service by the blower fan
Carry out defrost.
Air-cooled heat pump cold-hot water machine according to embodiments of the present invention, without being carried out by changing refrigerating operaton and blowing-out machine
Defrost, but by switching between the heating water system of control first and the second heating water system, continue to transport using blower fan itself
OK so that the heat that the frost being not in the air-conditioning heat exchanger of heat exchange working condition absorbs surrounding environment carries out defrost, so as to subtract
Heating decay during defrost is heated less, is greatly improved heating effect, is improved Consumer's Experience.
According to one embodiment of present invention, when the air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if
The outdoor environment temperature T4 is more than the first preset temperature, and the control module then controls the air-cooled heat pump cold-hot water machine to take turns
Defrost mode is changed to run；If the outdoor environment temperature T4 is less than or equal to first preset temperature, the control module
The air-cooled heat pump cold-hot water machine is then controlled to be run with conventional Defrost mode.
According to one embodiment of present invention, the control module realizes control first system by following control flow
Hot-water heating system and the second heating water system alternating heating operation：A, the compressor in the first heating water system is controlled to open
Machine is so that described first heats water system heating operation, and obtains described first after the described first heating water system heating operation
Heat the accumulation heat pamp of water system；B, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value
Or the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger are when being more than or equal to the first preset value, control first system
Compressor shutdown in hot-water heating system, the blower fan continue to run with, and control the compressor in the second heating water system to open
Machine is so that the second heating water system heating operation, and obtains described the after the described second heating water system heating operation
The accumulation heat pamp of two heating water systems；C, when the accumulation heat pamp of the described second heating water system reaches the second time threshold
When the inlet temperature rate of change △ Tb of value or second air-conditioning heat exchanger are more than or equal to first preset value, described in control
Compressor shutdown in second heating water system, the blower fan continues to run with, and returns and perform step a.
According to one embodiment of present invention, when the accumulation heat pamp of the described first heating water system is not up to described the
One time threshold and when the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger are less than first preset value, the control
Molding block control the first heating water system continues heating operation.
According to one embodiment of present invention, when the accumulation heat pamp of the described second heating water system is not up to described the
Two time thresholds and when the inlet temperature rate of change △ Tb of second air-conditioning heat exchanger are less than first preset value, the control
Molding block control the second heating water system continues heating operation.
Brief description of the drawings
Fig. 1 is the system structure diagram according to the air-cooled heat pump cold-hot water machine of one embodiment of the invention；
Fig. 2 is the flow chart according to the defrosting control method of the air-cooled heat pump cold-hot water machine of the embodiment of the present invention；
Fig. 3 is defrost when being run according to the air-cooled heat pump cold-hot water machine of one embodiment of the invention in a manner of rotation defrost
Control flow chart；And
Fig. 4 is that the control after heating start-up command is received according to the air-cooled heat pump cold-hot water machine of one embodiment of the invention
Flow chart.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The defrosting control side of air-cooled heat pump cold-hot water machine proposed according to embodiments of the present invention described with reference to the accompanying drawings
Method and air-cooled heat pump cold-hot water machine.
As shown in figure 1, air-cooled heat pump cold-hot water machine according to an embodiment of the invention include first heating water system and
Second heating water system, wherein, second in the first air-conditioning heat exchanger and the second heating water system in the first heating water system
Air-conditioning heat exchanger shares a blower fan.
As shown in Fig. 2 the defrosting control method of the air-cooled heat pump cold-hot water machine comprises the following steps：
S1, outdoor environment temperature T4 is detected in real time, and detect the inlet temperature T3a and second of the first air-conditioning heat exchanger in real time
The inlet temperature T3b of air-conditioning heat exchanger.
Wherein, outdoor environment temperature T4 can be detected by outdoor temperature sensor, and can be changed by being arranged on the first air-conditioning
The temperature sensor detection T3a of the hot device entrance and temperature sensor detection T3b for being arranged on the second air-conditioning heat exchanger entrance.
S2, entering for the first air-conditioning heat exchanger is obtained according to the inlet temperature T3a of the first air-conditioning heat exchanger detected in real time
Mouth rate of temperature change △ Ta, and the heat exchange of the second air-conditioning is obtained according to the inlet temperature T3b of the second air-conditioning heat exchanger detected in real time
The inlet temperature rate of change △ Tb of device.
Say, △ Ta are the rate of decay of the inlet temperature of the first air-conditioning heat exchanger, and △ Tb are the second air-conditioning heat exchanger
The rate of decay of inlet temperature.
S3, when air-cooled heat pump cold-hot water machine enters defrost pattern, judged whether to control wind according to outdoor environment temperature T4
Cold-heat pump water chiller/heater is run in a manner of rotation defrost.
According to one embodiment of present invention, when air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if outdoor
Environment temperature T4 is more than the first preset temperature, then controls air-cooled heat pump cold-hot water machine to be run in a manner of rotation defrost；It is if outdoor
Environment temperature T4 is less than or equal to the first preset temperature, then controls air-cooled heat pump cold-hot water machine to be run with conventional Defrost mode.
, wherein it is desired to explanation, the first preset temperature can enter rower according to the concrete condition of air-cooled heat pump cold-hot water machine
It is fixed.Also, conventional Defrost mode refers to air-cooled heat pump cold-hot water machine and still carries out defrost with normal refrigerating operaton and blowing-out machine,
Say, outdoor environment temperature T4 than it is relatively low when, air-cooled heat pump cold-hot water machine still by normal refrigerating operaton and blowing-out machine come
Carry out defrost.
S4, if air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to the import of the first air-conditioning heat exchanger
The heating water system of the rate of temperature change △ Ta and inlet temperature rate of change △ Tb of the second air-conditioning heat exchanger controls first and the second system
Hot-water heating system replaces heating operation, is carried out with the air-conditioning heat exchanger that the continuous service by blower fan makes to be not in exchanging heat working condition
Defrost.
That is, the defrosting control method of the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, controls air-cooled heat-pump cold
When hot water machine is run in a manner of rotation defrost, without changing refrigerating operaton and blowing-out machine by air-cooled heat pump cold-hot water machine to carry out
Defrost, but by switching between the heating water system of control first and the second heating water system, continue to transport using blower fan itself
OK so that the heat that the frost being not in the air-conditioning heat exchanger of heat exchange working condition absorbs surrounding environment carries out defrost, so as to subtract
Heating decay during defrost is heated less, is greatly improved heating effect, is improved Consumer's Experience.
According to one embodiment of present invention, it is empty according to the inlet temperature rate of change △ Ta of the first air-conditioning heat exchanger and second
Adjust the heating water system of inlet temperature rate of change △ Tb controls first and the second heating water system alternating heating operation of heat exchanger, tool
Body includes：A, the compressor in the heating of control first water system is started shooting so that the first heating water system heating operation, and first
The first accumulation heat pamp for heating water system is obtained after heating water system heating operation；B, when the accumulation of the first heating water system
Heat pamp reaches very first time threshold value or the inlet temperature rate of change △ Ta of the first air-conditioning heat exchanger are pre- more than or equal to first
If during value, the compressor shutdown in the heating water system of control first, blower fan continues to run with, and controls in the second heating water system
Compressor is started shooting so that second heats water system heating operation, and obtains the second system after the second heating water system heating operation
The accumulation heat pamp of hot-water heating system；C, when the accumulation heat pamp of the second heating water system reaches the second time threshold or the
When the inlet temperature rate of change △ Tb of two air-conditioning heat exchangers are more than or equal to the first preset value, the pressure in the heating water system of control second
Contracting machine is shut down, and blower fan continues to run with, and is returned and performed step a.
Specifically, as shown in figure 3, defrosting control flow bag when air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost
Include following steps：
S301, air-cooled heat pump cold-hot water machine are run after start-up command is received with heating mode.
S302, the compressor that control first heats in water system such as A systems is opened so that the first heating water system heating
Operation.
S303, the first heating water system such as A systems carry out frosting accumulation timing, and obtain accumulation heat pamp ta.
Whether S304, the inlet temperature rate of change △ Ta for the first air-conditioning heat exchanger for judging to obtain in real time are more than or equal to first
Preset value Tv.If it is, perform step S306；If not, perform step S305.Wherein, the first preset value Tv is according to specific feelings
Condition is demarcated.
S305, judge to accumulate whether heat pamp ta reaches very first time threshold value.If it is, perform step S306；Such as
Fruit is no, then return to step S303, that is, says, when the accumulation heat pamp of the described first heating water system is not up to the very first time
When the inlet temperature rate of change △ Ta of threshold value and first air-conditioning heat exchanger are less than first preset value, control described first
Heat water system and continue heating operation.Wherein, very first time threshold value can be set according to actual conditions.
S306, control first heat the compressor shutdown in water system, keep blower fan to continue to run with, and control the second heating
Compressor in water system such as B system is opened so that the second heating water system heating operation.
S307, the second heating water system such as B system carries out frosting accumulation timing, and obtains accumulation heat pamp tb.
Whether S308, the inlet temperature rate of change △ Tb for the second air-conditioning heat exchanger for judging to obtain in real time are more than or equal to first
Preset value Tv.If it is, perform step S310；If not, perform step S309.
S309, judge to accumulate whether heat pamp tb reaches the second time threshold.If it is, perform step S310；Such as
Fruit is no, then return to step S307, that is, says, when the accumulation heat pamp of the described second heating water system is not up to second time
When the inlet temperature rate of change △ Tb of threshold value and second air-conditioning heat exchanger are less than first preset value, control described second
Heat water system and continue heating operation.Wherein, the second time threshold can equally be set according to actual conditions.
S310, control second heat the compressor shutdown in water system, keep blower fan to continue to run with, are then back to and perform step
Rapid S302.
It follows that in an embodiment of the present invention, when control air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost
When, by switching in turn between the heating water system of control first and the second heating water system, using continuing to run with for blower fan itself,
So that the heat that the frost being not in the air-conditioning heat exchanger of heat exchange working condition absorbs surrounding environment carries out defrost, so as to reduce system
Heating decay during thermalization frost, greatly improves heating effect, improves Consumer's Experience.
It should be noted that in an embodiment of the present invention, as shown in figure 4, when air-cooled heat pump cold-hot water machine receives system
Control flow after hot start-up command comprises the following steps：
S401, air-cooled heat pump cold-hot water machine are run with heating mode.
S402, judges whether air-cooled heat pump cold-hot water machine enters defrost pattern.If it is, perform step S403；If not,
Perform step S404.
S403, judges whether outdoor environment temperature T4 is more than the first preset temperature.If it is, perform step S405；If
It is no, perform step S406.
S404, air-cooled heat pump cold-hot water machine continue to run with heating mode.
S405, air-cooled heat pump cold-hot water machine are run in a manner of rotation defrost, until after defrost terminates, return to step S402,
Continue to judge.
S406, air-cooled heat pump cold-hot water machine are run with conventional Defrost mode, until after defrost terminates, return to step S402,
Continue to judge.
That is, air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost is only applicable to part outdoor environment temperature.
Also, when air-cooled heat pump cold-hot water machine is run using rotation defrost mode, realize and entered by way of not blowing-out machine
Row defrost, four-way valve commutation it is not related to during defrost, so being not in intermittent refrigeration (refrigeration defrost) and causing air-cooled
The fluctuating temperature of heat pump water chiller-heater machine, while the heating effect of air-cooled heat pump cold-hot water machine is also not in decay, improves user
Experience.
The defrosting control method of air-cooled heat pump cold-hot water machine according to embodiments of the present invention, detects outdoor environment temperature in real time
T4, and the inlet temperature T3a of the first air-conditioning heat exchanger and the inlet temperature T3b, Ran Houtong of the second air-conditioning heat exchanger are detected in real time
When the outdoor environment temperature T4 detected in real time is to judge that air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to first
Inlet temperature rate of change △ Ta of the air-conditioning heat exchanger and inlet temperature rate of change △ Tb of the second air-conditioning heat exchanger control first
Water system and the second heating water system alternating heating operation are heated, makes to be not in the work shape that exchanges heat with the continuous service by blower fan
The air-conditioning heat exchanger of state carries out defrost, is converted to refrigerating operaton without control air-cooled heat pump cold-hot water machine and blowing-out machine comes
Defrost is carried out, greatly improves the heating effect of air-cooled heat pump cold-hot water machine, improves Consumer's Experience.
In addition, a kind of air-cooled heat pump cold-hot water machine that the embodiment of the present invention also proposes includes：First heating water system and the
Two heating water systems, the first temperature detecting module, second temperature detection module, the 3rd temperature detecting module and control module.
Wherein, as shown in figure 1, first heating water system include compressor 11, delivery temperature switch 12, high-voltage switch gear 13,
Four-way valve 14, low tension switch 15, low pressure fill the 16, first air-conditioning heat exchanger 17, electric expansion valve 18, and the second heating water system includes
Compressor 21, delivery temperature switch 22, high-voltage switch gear 23, four-way valve 24, low tension switch 25, low pressure fill the heat exchange of the 26, second air-conditioning
Device 27, electric expansion valve 28.Also, the first air-conditioning heat exchanger 17 and the shared blower fan 10 of the second air-conditioning heat exchanger 27, first
It is double-tube heat exchanger 20 to heat water system and the also shared hot water side heat exchanger of the second heating water system, meanwhile, in double-tube heat exchanger
Be respectively provided with 20 water outlet pipe part and water inlet pipe temperature sensor (such as at water inlet pipe set temperature sensor 101 with detect
Water inlet water temperature), in water outlet pipe part, flow sensor is set, and temperature is set between air-conditioning heat exchanger 17 and electric expansion valve 18
Spend sensor 19, temperature sensor 29 is set between air-conditioning heat exchanger 27 and electric expansion valve 28.Temperature sensor 19 is used for
The inlet temperature T3a of the first air-conditioning heat exchanger of detection in real time, temperature sensor 29 are used to detect the second air-conditioning heat exchanger in real time
Inlet temperature T3b.
In an embodiment of the present invention, the first temperature detecting module such as outdoor temperature sensor is used for outside real-time sensing chamber
Environment temperature T4, second temperature detection module such as temperature sensor 19 are used to detect entering for first air-conditioning heat exchanger in real time
Mouth temperature T3a, the 3rd temperature detecting module such as temperature sensor 29 are used to detect entering for second air-conditioning heat exchanger in real time
Mouthful temperature T3b, control module are used to obtain described the according to the inlet temperature T3a of first air-conditioning heat exchanger detected in real time
The inlet temperature rate of change △ Ta of one air-conditioning heat exchanger, and according to the inlet temperature of second air-conditioning heat exchanger detected in real time
T3b obtains the inlet temperature rate of change △ Tb of second air-conditioning heat exchanger, and enters in the air-cooled heat pump cold-hot water machine
Judge whether to control the air-cooled heat pump cold-hot water machine according to the outdoor environment temperature T4 with rotation defrost side during defrost pattern
Formula is run, wherein, if the air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, the control module is according to described the
The inlet temperature rate of change △ Ta of one air-conditioning heat exchanger and the inlet temperature rate of change △ Tb controls of second air-conditioning heat exchanger
The first heating water system and the second heating water system alternating heating operation, are made with the continuous service by the blower fan
The air-conditioning heat exchanger for being not in heat exchange working condition carries out defrost.
Further, when the air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if the outdoor environment temperature
Degree T4 is more than the first preset temperature, and the control module then controls the air-cooled heat pump cold-hot water machine to be transported in a manner of rotation defrost
OK；If the outdoor environment temperature T4 is less than or equal to first preset temperature, the control module then controls the wind
Cold-heat pump water chiller/heater is run with conventional Defrost mode.
, wherein it is desired to explanation, the first preset temperature can enter rower according to the concrete condition of air-cooled heat pump cold-hot water machine
It is fixed.Also, conventional Defrost mode refers to air-cooled heat pump cold-hot water machine and still carries out defrost with normal refrigerating operaton and blowing-out machine,
Say, outdoor environment temperature T4 than it is relatively low when, air-cooled heat pump cold-hot water machine still by normal refrigerating operaton and blowing-out machine come
Carry out defrost.
Specifically, according to one embodiment of present invention, the control module realizes control institute by following control flow
State the first heating water system and the second heating water system alternating heating operation：
A, control it is described first heating water system in compressor start shooting so that it is described first heating water system heating operation,
And the accumulation heat pamp of the first heating water system is obtained after the described first heating water system heating operation；
B, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value or first air-conditioning
When the inlet temperature rate of change △ Ta of heat exchanger are more than or equal to the first preset value, the compression in control the first heating water system
Machine is shut down, and the blower fan continues to run with, and controls the compressor in the second heating water system to start shooting so that second system
Hot-water heating system heating operation, and the tired of the second heating water system is obtained after the described second heating water system heating operation
Product heat pamp；
C, when the accumulation heat pamp of the described second heating water system reaches the second time threshold or second air-conditioning
When the inlet temperature rate of change △ Tb of heat exchanger are more than or equal to first preset value, in control the second heating water system
Compressor shutdown, the blower fan continue to run with, and return and perform step a.
Wherein, when the accumulation heat pamp of the described first heating water system is not up to the very first time threshold value and described the
When the inlet temperature rate of change △ Ta of one air-conditioning heat exchanger are less than first preset value, the control module control described first
Heat water system and continue heating operation.When the accumulation heat pamp of the described second heating water system is not up to the second time threshold
When the inlet temperature rate of change △ Tb of value and second air-conditioning heat exchanger are less than first preset value, the control module control
Make the second heating water system and continue heating operation.
In summary, in an embodiment of the present invention, when air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, lead to
Cross between the heating water system of control first and the second heating water system and switch in turn, utilize continuing to run with for blower fan itself so that
The heat that the frost being not in the air-conditioning heat exchanger of heat exchange working condition absorbs surrounding environment carries out defrost, so as to reduce heatingization
Heating decay when white, greatly improves heating effect, improves Consumer's Experience.
Air-cooled heat pump cold-hot water machine according to embodiments of the present invention, without being carried out by changing refrigerating operaton and blowing-out machine
Defrost, but by switching between the heating water system of control first and the second heating water system, continue to transport using blower fan itself
OK so that the heat that the frost being not in the air-conditioning heat exchanger of heat exchange working condition absorbs surrounding environment carries out defrost, so as to subtract
Heating decay during defrost is heated less, is greatly improved heating effect, is improved Consumer's Experience.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of defrosting control method of air-cooled heat pump cold-hot water machine, it is characterised in that the air-cooled heat pump cold-hot water machine includes
First heating water system and the second heating water system, wherein, the first air-conditioning heat exchanger and institute in the first heating water system
The second air-conditioning heat exchanger stated in the second heating water system shares a blower fan, and the defrosting control method comprises the following steps：
Detection outdoor environment temperature T4 in real time, and the inlet temperature T3a and described the of first air-conditioning heat exchanger is detected in real time
The inlet temperature T3b of two air-conditioning heat exchangers；
Entering for first air-conditioning heat exchanger is obtained according to the inlet temperature T3a of first air-conditioning heat exchanger detected in real time
Mouth rate of temperature change △ Ta, and obtain described second according to the inlet temperature T3b of second air-conditioning heat exchanger detected in real time
The inlet temperature rate of change △ Tb of air-conditioning heat exchanger；
When the air-cooled heat pump cold-hot water machine enters defrost pattern, judged whether to control institute according to the outdoor environment temperature T4
Air-cooled heat pump cold-hot water machine is stated to run in a manner of rotation defrost；
If the air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to the import of first air-conditioning heat exchanger
The rate of temperature change △ Ta and inlet temperature rate of change △ Tb of second air-conditioning heat exchanger controls the first heating water system
With the described second heating water system alternating heating operation, make to be not in the working condition that exchanges heat with the continuous service by the blower fan
Air-conditioning heat exchanger carry out defrost.
2. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 1, it is characterised in that when the air-cooled heat
When pump water chiller/heater enters defrost pattern, wherein,
If the outdoor environment temperature T4 is more than the first preset temperature, the air-cooled heat pump cold-hot water machine is controlled with rotation
White mode is run；
If the outdoor environment temperature T4 is less than or equal to first preset temperature, the air-cooled heat pump cold-hot water is controlled
Machine is run with conventional Defrost mode.
3. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 1 or 2, it is characterised in that according to described
The inlet temperature rate of change △ Ta of first air-conditioning heat exchanger and the inlet temperature rate of change △ Tb controls of second air-conditioning heat exchanger
The first heating water system and the second heating water system alternating heating operation are made, is specifically included：
A, control it is described first heating water system in compressor start shooting so that it is described first heating water system heating operation, and
The accumulation heat pamp of the first heating water system is obtained after the first heating water system heating operation；
B, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value or first air-conditioning heat exchange
When the inlet temperature rate of change △ Ta of device are more than or equal to the first preset value, the compressor in control the first heating water system stops
Machine, the blower fan continue to run with, and control the compressor in the second heating water system to start shooting so that second water heating
System heating operation, and obtain the described second accumulation knot for heating water system after the described second heating water system heating operation
The white time；
C, when the accumulation heat pamp of the described second heating water system reaches the second time threshold or second air-conditioning heat exchange
When the inlet temperature rate of change △ Tb of device are more than or equal to first preset value, the compression in control the second heating water system
Machine is shut down, and the blower fan continues to run with, and is returned and performed step a.
4. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 3, it is characterised in that according to described first
The inlet temperature rate of change △ Ta of air-conditioning heat exchanger and the inlet temperature rate of change △ Tb controls institute of second air-conditioning heat exchanger
The first heating water system and the second heating water system alternating heating operation are stated, is specifically also included：
When the accumulation heat pamp of the described first heating water system is not up to the very first time threshold value and first air-conditioning changes
When the inlet temperature rate of change △ Ta of hot device are less than first preset value, control the first heating water system continues heating fortune
OK.
5. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 3, it is characterised in that according to described first
The inlet temperature rate of change △ Ta of air-conditioning heat exchanger and the inlet temperature rate of change △ Tb controls institute of second air-conditioning heat exchanger
The first heating water system and the second heating water system alternating heating operation are stated, is specifically also included：
When the accumulation heat pamp of the described second heating water system is not up to second time threshold and second air-conditioning changes
When the inlet temperature rate of change △ Tb of hot device are less than first preset value, control the second heating water system continues heating fortune
OK.
A kind of 6. air-cooled heat pump cold-hot water machine, it is characterised in that including：
First heating water system and the second heating water system, the first air-conditioning heat exchanger and described in the first heating water system
The second air-conditioning heat exchanger in second heating water system shares a blower fan；
First temperature detecting module, for detecting outdoor environment temperature T4 in real time；
Second temperature detection module, for detecting the inlet temperature T3a of first air-conditioning heat exchanger in real time；
3rd temperature detecting module, for detecting the inlet temperature T3b of second air-conditioning heat exchanger in real time；
Control module, it is empty for obtaining described first according to the inlet temperature T3a of first air-conditioning heat exchanger detected in real time
The inlet temperature rate of change △ Ta of heat exchanger are adjusted, and according to the inlet temperature T3b of second air-conditioning heat exchanger detected in real time
The inlet temperature rate of change △ Tb of second air-conditioning heat exchanger are obtained, and enter defrost in the air-cooled heat pump cold-hot water machine
Judged whether according to the outdoor environment temperature T4 to control the air-cooled heat pump cold-hot water machine to transport in a manner of rotation defrost during pattern
OK, wherein, if the air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, the control module is empty according to described first
Adjust described in the inlet temperature rate of change △ Ta of heat exchanger and the inlet temperature rate of change △ Tb controls of second air-conditioning heat exchanger
First heating water system and the second heating water system alternating heating operation, make not locate with the continuous service by the blower fan
Defrost is carried out in the air-conditioning heat exchanger of heat exchange working condition.
7. air-cooled heat pump cold-hot water machine as claimed in claim 6, it is characterised in that when the air-cooled heat pump cold-hot water machine enters
During defrost pattern, wherein,
If the outdoor environment temperature T4 is more than the first preset temperature, the control module then controls the air-cooled heat pump cold and hot
Water dispenser is run in a manner of rotation defrost；
If the outdoor environment temperature T4 is less than or equal to first preset temperature, the control module then controls the wind
Cold-heat pump water chiller/heater is run with conventional Defrost mode.
8. air-cooled heat pump cold-hot water machine as claimed in claims 6 or 7, it is characterised in that the control module passes through following control
Flow processed realizes the control first heating water system and the second heating water system alternating heating operation：
A, control it is described first heating water system in compressor start shooting so that it is described first heating water system heating operation, and
The accumulation heat pamp of the first heating water system is obtained after the first heating water system heating operation；
B, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value or first air-conditioning heat exchange
When the inlet temperature rate of change △ Ta of device are more than or equal to the first preset value, the compressor in control the first heating water system stops
Machine, the blower fan continue to run with, and control the compressor in the second heating water system to start shooting so that second water heating
System heating operation, and obtain the described second accumulation knot for heating water system after the described second heating water system heating operation
The white time；
C, when the accumulation heat pamp of the described second heating water system reaches the second time threshold or second air-conditioning heat exchange
When the inlet temperature rate of change △ Tb of device are more than or equal to first preset value, the compression in control the second heating water system
Machine is shut down, and the blower fan continues to run with, and is returned and performed step a.
9. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterised in that when the accumulation of the described first heating water system
Heat pamp is not up to the very first time threshold value and the inlet temperature rate of change △ Ta of first air-conditioning heat exchanger are less than institute
When stating the first preset value, control module control the first heating water system continues heating operation.
10. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterised in that when tiring out for the described second heating water system
Product heat pamp is not up to second time threshold and the inlet temperature rate of change △ Tb of second air-conditioning heat exchanger are less than
During first preset value, control module control the second heating water system continues heating operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510617490.4A CN105115209B (en) | 2015-09-23 | 2015-09-23 | Air-cooled heat pump cold-hot water machine and its defrosting control method |
| PCT/CN2016/096051 WO2017050073A1 (en) | 2015-09-23 | 2016-08-19 | Water chiller-heater unit of air cooled heat pump and defrosting control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510617490.4A CN105115209B (en) | 2015-09-23 | 2015-09-23 | Air-cooled heat pump cold-hot water machine and its defrosting control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105115209A CN105115209A (en) | 2015-12-02 |
| CN105115209B true CN105115209B (en) | 2017-11-10 |
Family
ID=54663257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510617490.4A Active CN105115209B (en) | 2015-09-23 | 2015-09-23 | Air-cooled heat pump cold-hot water machine and its defrosting control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105115209B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017050073A1 (en) * | 2015-09-23 | 2017-03-30 | 广东美的暖通设备有限公司 | Water chiller-heater unit of air cooled heat pump and defrosting control method therefor |
| CN105928272A (en) * | 2016-04-20 | 2016-09-07 | 广东美的暖通设备有限公司 | Air conditioning system and defrosting method thereof |
| CN106642586B (en) * | 2016-12-29 | 2019-09-17 | 广东美的暖通设备有限公司 | A kind of classification defrosting method and device for air-cooled heat pump Parallel sets |
| CN107388656A (en) * | 2017-06-13 | 2017-11-24 | 珠海格力电器股份有限公司 | The control method of unit, apparatus and system |
| CN110715482B (en) * | 2019-08-30 | 2023-08-08 | 浙江正泰能效科技有限公司 | Defrosting method of air source heat pump unit |
| CN112539521B (en) * | 2020-12-21 | 2022-02-22 | 珠海格力电器股份有限公司 | Air conditioner multi-split air conditioner and defrosting control method and device and storage medium thereof |
| CN113944987B (en) * | 2021-11-24 | 2023-05-30 | 广东美的制冷设备有限公司 | Control method, device, equipment and storage medium of air conditioning system |
| CN115405993A (en) * | 2022-09-01 | 2022-11-29 | 合肥美的暖通设备有限公司 | Air source heat pump heating system, defrosting control method and defrosting control device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332137A (en) * | 1979-10-22 | 1982-06-01 | Carrier Corporation | Heat exchange apparatus and method having two refrigeration circuits |
| KR20050026594A (en) * | 2003-09-09 | 2005-03-15 | 삼성전자주식회사 | Multi chamber type air conditioner and method for controlling the multi chamber type air conditioner |
| CN101532747B (en) * | 2009-04-21 | 2010-12-08 | 四川长虹电器股份有限公司 | An air-conditioner |
| CN103597291B (en) * | 2011-06-08 | 2017-03-01 | 三菱电机株式会社 | refrigerating air conditioning device |
| CN102840629B (en) * | 2011-06-20 | 2016-02-03 | 珠海格力电器股份有限公司 | Heat pump type air conditioning system |
| CN104165486B (en) * | 2013-05-17 | 2016-09-14 | 广东美的集团芜湖制冷设备有限公司 | The Defrost method of air-conditioner |
| CN104729029B (en) * | 2013-12-24 | 2018-05-11 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN203893480U (en) * | 2014-06-19 | 2014-10-22 | 广东志高暖通设备股份有限公司 | Air cooling heat pump unit |
-
2015
- 2015-09-23 CN CN201510617490.4A patent/CN105115209B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105115209A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105115209B (en) | Air-cooled heat pump cold-hot water machine and its defrosting control method | |
| CN105318618B (en) | Air-cooled heat pump cold-hot water machine and its defrosting control method | |
| CN105115211B (en) | Air-cooled heat pump cold-hot water machine and its defrosting control method | |
| CN105135774B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| CN104596038B (en) | The control method and device of air conditioner | |
| JP5238001B2 (en) | Refrigeration cycle equipment | |
| CN105299841B (en) | The fault detection method of the heat exchange valve body of multiple on-line system and its outdoor heat exchanger | |
| CN103411340B (en) | Outdoor heat exchange device and Defrost method thereof | |
| CN106524557A (en) | Multi-couple unit system and anti-liquid-return control method during defrosting of multi-couple unit system | |
| WO2011093050A1 (en) | Refrigeration cycle apparatus | |
| CN105299988B (en) | Air-cooled heat pump cold-hot water machine and its prevent high voltage protective method | |
| CN104807258B (en) | Air conditioning system and heat accumulation and defrosting device and method thereof | |
| CN106382777A (en) | Air conditioner system and reflowing control method for reflowing refrigerant of subcooler | |
| CN104896581B (en) | The control method of air conditioner and air conditioner | |
| CN105910354A (en) | Air conditioner | |
| WO2012042692A1 (en) | Refrigeration cycle device | |
| CN105241141B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| CN103097824A (en) | Air conditioner | |
| WO2013088684A1 (en) | Air conditioner | |
| US20200355419A1 (en) | Refrigerant cycle apparatus | |
| CN107036347A (en) | Can intelligent defrosting heat pump air conditioner, the computer-readable recording medium of heat pump air conditioner | |
| CN105135775B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| CN105115210B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| JP4666111B1 (en) | Refrigeration cycle equipment | |
| CN107965853A (en) | The outdoor unit and control method of three control multi-line systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |