CN105318618B - 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
- CN105318618B CN105318618B CN201510617572.9A CN201510617572A CN105318618B CN 105318618 B CN105318618 B CN 105318618B CN 201510617572 A CN201510617572 A CN 201510617572A CN 105318618 B CN105318618 B CN 105318618B
- Authority
- CN
- China
- Prior art keywords
- heating
- air
- water
- temperature
- heat pump
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
- F25B2347/021—Alternate defrosting
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- 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 air-conditioning heat exchanger in 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 in real time, and detection water inlet water temperature T in real time；When air-cooled heat pump cold-hot water machine enters defrost pattern, judged whether to control air-cooled heat pump cold-hot water machine to run in a manner of rotation defrost according to T4；If air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to the heating water system of T4 and Tin 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, wherein, the air-cooled heat pump cold-hot water machine includes the first heating water system and the second heating water system, wherein, described the
The air-conditioning heat exchanger in air-conditioning heat exchanger and the second heating water system in one heating water system shares a blower fan, described
Defrosting control method comprises the following steps：Detection outdoor environment temperature T4 in real time, and the air-cooled heat pump cold-hot water is detected in real time
The water inlet water temperature T in of machine；When the air-cooled heat pump cold-hot water machine enters defrost pattern, sentenced according to the outdoor environment temperature T4
It is disconnected whether to control the air-cooled heat pump cold-hot water machine to be run in a manner of rotation defrost；If the air-cooled heat pump cold-hot water machine is to take turns
Change defrost mode to run, then according to the outdoor environment temperature T4 and the water inlet water temperature T in controls the first heating water system
System and the described second heating water system alternating heating operation, make to be not in the work shape that exchanges heat with the continuous service by the blower fan
The air-conditioning heat exchanger of state carries out defrost.
The defrosting control method of air-cooled heat pump cold-hot water machine according to embodiments of the present invention, by detecting outdoor environment in real time
When temperature T4 is to judge that air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to outdoor environment temperature T4 and detection in real time
Water inlet water temperature T in control first heating water system and second heating water system alternating heating operation, with continuing by blower fan
The air-conditioning heat exchanger that operation makes to be not in exchanging heat working condition carries out defrost, turns without control air-cooled heat pump cold-hot water machine
Refrigerating operaton and blowing-out machine are changed to carry out defrost, greatly improves the heating effect of air-cooled heat pump cold-hot water machine, improves user's body
Test.
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 outdoor environment temperature T4 and the water inlet water temperature T in controls institute
The first heating water system and the second heating water system alternating heating operation are stated, is specifically included：A, first heating is controlled
Compressor in water system is started shooting so that described first heats water system heating operation, and is carried out in the described first heating water system
After the preset time of heating operation first, judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet that first is pre-
If condition；B, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet first preparatory condition, then control
Make the first heating water system and enter frosting accumulation mode, and obtain the accumulation heat pamp of the first heating water system；
C, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value, control the first heating water system
In compressor shutdown, the blower fan continues to run with, and controls the compressor in the second heating water system to start shooting so that institute
The second heating water system heating operation is stated, and after the described second heating water system carries out the preset time of heating operation second,
Judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet the second preparatory condition；D, if it is determined that the room
External environment temperature T4 and the water inlet water temperature T in meet second preparatory condition, then control the second heating water system to enter
Enter frosting accumulation mode, and obtain the accumulation heat pamp of the second heating water system；E, when described second heats water system
Accumulation heat pamp when reaching the second time threshold, the compressor shutdown in control the second heating water system, the wind
Machine continues to run with, and returns and perform step a.
According to one embodiment of present invention, in step a, if it is determined that the outdoor environment temperature T4 and the water inlet
Water temperature T in does not meet first preparatory condition, then when controlling the first heating water system continuation heating operation the 3rd default
Between after, return continue to judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet first preparatory condition.
According to one embodiment of present invention, in step c, if it is determined that the outdoor environment temperature T4 and the water inlet
Water temperature T in does not meet second preparatory condition, then when controlling the second heating water system continuation heating operation the 4th default
Between after, return continue to judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet second preparatory condition.
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 air-conditioning heat exchanger and second water heating in water system
Air-conditioning heat exchanger in system shares a blower fan；First temperature detecting module, for detecting outdoor environment temperature T4 in real time；The
Two temperature detecting modules, for detecting the water inlet water temperature T in of the air-cooled heat pump cold-hot water machine in real time；Control module, for
According to the outdoor environment temperature T4 judge whether to control when the air-cooled heat pump cold-hot water machine enters defrost pattern described air-cooled
Heat pump water chiller-heater machine is run in a manner of rotation defrost, wherein, if the air-cooled heat pump cold-hot water machine is transported in a manner of rotation defrost
OK, the control module is according to the outdoor environment temperature T4 and the water inlet water temperature T in 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.
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 so that it is described first heating water system heating operation, and described first heating water system carry out heating operation first preset when
Between after, judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet the first preparatory condition；B, if it is determined that institute
State outdoor environment temperature T4 and the water inlet water temperature T in meets first preparatory condition, then control the first heating water system
System enters frosting accumulation mode, and obtains the accumulation heat pamp of the first heating water system；C, when first water heating
When the accumulation heat pamp of system reaches very first time threshold value, the compressor shutdown in control the first heating water system, institute
State blower fan to continue to run with, and control the compressor in the second heating water system to start shooting so that the second heating water system system
Heat operation, and after the described second heating water system carries out the preset time of heating operation second, judge the outdoor environment temperature
Whether the degree T4 and water inlet water temperature T in meets the second preparatory condition；D, if it is determined that the outdoor environment temperature T4 and described
Water inlet water temperature T in meets second preparatory condition, then controls the second heating water system to enter frosting accumulation mode, and obtain
Take the accumulation heat pamp of the second heating water system；E, when the accumulation heat pamp of the described second heating water system reaches the
During two time thresholds, the compressor shutdown in control the second heating water system, the blower fan continues to run with, and returns to execution
Step a.
According to one embodiment of present invention, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in not
Meet first preparatory condition, it is default that the control module then controls the first heating water system to continue heating operation the 3rd
After time, return continues to judge whether the outdoor environment temperature T4 and water inlet water temperature T in meets the described first default bar
Part.
According to one embodiment of present invention, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in not
Meet second preparatory condition, it is default that the control module then controls the second heating water system to continue heating operation the 4th
After time, return continues to judge whether the outdoor environment temperature T4 and water inlet water temperature T in meets the described second default bar
Part.
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, the air-conditioning heat exchange in air-conditioning heat exchanger and the second heating water system in the first heating water system
Device 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 water inlet water temperature T in of air-cooled heat pump cold-hot water machine in real time.
Wherein, outdoor environment temperature T4 can be detected by outdoor temperature sensor, by being arranged on air-cooled heat pump cold-hot water
Temperature sensor detection water inlet water temperature T at the water inlet pipe of machine.
S2, 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.
S3, if air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to outdoor environment temperature T4 and water inlet
The heating water system of water temperature T in controls first and the second heating water system alternating heating operation, to be made by the continuous service of blower fan
The air-conditioning heat exchanger for being not in heat exchange working condition carries out 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, the first water heating is controlled according to outdoor environment temperature T4 and water inlet water temperature T in
System and the second heating water system alternating heating operation, are specifically included：A, the compressor start in the heating of control first water system
So that the first heating water system heating operation, and after the first heating water system carries out the preset time of heating operation first, judge
Whether outdoor environment temperature T4 and water inlet water temperature T in meet the first preparatory condition；B, if it is determined that outdoor environment temperature T4 and entering
Water water temperature T in meets the first preparatory condition, then controls the first heating water system to enter frosting accumulation mode, and obtain the first heating
The accumulation heat pamp of water system；C, when the accumulation heat pamp of the first heating water system reaches very first time threshold value, control
Compressor shutdown in first heating water system, blower fan continue to run with, and control the compressor start in the second heating water system
So that the second heating water system heating operation, and after the second heating water system carries out the preset time of heating operation second, sentence
Whether disconnected outdoor environment temperature T4 and water inlet water temperature T in meet the second preparatory condition；D, if it is determined that outdoor environment temperature T4 and
Water temperature T of intaking in meets the second preparatory condition, then controls the second heating water system to enter frosting accumulation mode, and obtain the second system
The accumulation heat pamp of hot-water heating system；E, when the accumulation heat pamp of the second heating water system reaches the second time threshold, control
Compressor shutdown in the heating water system of system second, blower fan continues to run with, and returns and perform 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, and after first the first preset time t of heating water system heating operation 1, perform step S303.
S303, outdoor environment temperature T4 and water inlet water temperature T in are judged to judge outdoor environment temperature T4 and water inlet
Whether water temperature T in meets the first preparatory condition, wherein, the first preparatory condition is demarcated according to actual conditions.If it is satisfied, then
Perform step S304；If be unsatisfactory for, after the heating water system of control first continues the preset time of heating operation the 3rd, step is returned to
Rapid S303.
Wherein, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in do not meet the described first default bar
Part, then after controlling the first heating water system to continue the preset time of heating operation the 3rd, return continues to judge the outdoor ring
Whether border temperature T4 and the water inlet water temperature T in meet first preparatory condition.
S304, the heating water system such as A systems of control first enter frosting accumulation mode, and obtain accumulation heat pamp
Ta。
S305, judge to accumulate whether heat pamp Ta reaches the rotation cumulative time that very first time threshold value is set.If
It is then to perform step S306；If it is not, then return to step S305, continues to judge.
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 second heats water system heating operation, and heats water system system second
After heat the second preset time t 2 of operation, step S307 is performed.
S307, outdoor environment temperature T4 and water inlet water temperature T in are judged to judge outdoor environment temperature T4 and water inlet
Whether water temperature T in meets the second preparatory condition, wherein, the second preparatory condition is demarcated also according to actual conditions.It is if full
Foot, then perform step S308；If be unsatisfactory for, after the heating water system of control second continues the preset time of heating operation the 4th,
Return to step S307.
Wherein, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in do not meet the described second default bar
Part, then after controlling the second heating water system to continue the preset time of heating operation the 4th, return continues to judge the outdoor ring
Whether border temperature T4 and the water inlet water temperature T in meet second preparatory condition.
S308, the heating water system such as B system of control second enters frosting accumulation mode, and obtains accumulation heat pamp
Tb。
S309, judge to accumulate whether heat pamp Tb reaches the rotation cumulative time that the second time threshold is set.If
It is then to perform step S310；If it is not, then return to step S309, continues to judge.
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, by detecting outdoor environment in real time
When temperature T4 is to judge that air-cooled heat pump cold-hot water machine is run in a manner of rotation defrost, according to outdoor environment temperature T4 and detection in real time
Water inlet water temperature T in control first heating water system and second heating water system alternating heating operation, with continuing by blower fan
The air-conditioning heat exchanger that operation makes to be not in exchanging heat working condition carries out defrost, turns without control air-cooled heat pump cold-hot water machine
Refrigerating operaton and blowing-out machine are changed to carry out defrost, greatly improves the heating effect of air-cooled heat pump cold-hot water machine, improves user's body
Test.
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 (are arranged on the temperature sensor at water inlet pipe
101), 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 16, air-conditioning heat exchanger 17, electric expansion valve 18, and the second heating water system equally includes
Compressor 21, delivery temperature switch 22, high-voltage switch gear 23, four-way valve 24, low tension switch 25, low pressure fill 26, air-conditioning heat exchanger 27,
Electric expansion valve 28.Also, the air-conditioning heat exchanger 17 and second in the first heating water system heats the air-conditioning heat exchange in water system
Device 27 shares a blower fan 10, and it is sleeve heat exchange that the first heating water system and the second heating water system, which also share hot water side heat exchanger,
Device 20, meanwhile, temperature sensor is respectively provided with the water outlet pipe part of double-tube heat exchanger 20 and water inlet pipe, sets and flows in water outlet pipe part
Quantity sensor, and between air-conditioning heat exchanger 17 and electric expansion valve 18 set temperature sensor 19, in air-conditioning heat exchanger 27
Temperature sensor 29 is set between electric expansion valve 28.
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 101 are used to detect entering for air-cooled heat pump cold-hot water machine in real time
Water water temperature T in, control module are used for when the air-cooled heat pump cold-hot water machine enters defrost pattern according to the outdoor environment temperature
T4 is spent to judge 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
Water chiller/heater is run in a manner of rotation defrost, and the control module is according to the outdoor environment temperature T4 and the water inlet water temperature
The Tin controls first heating water system and the second heating water system alternating heating operation, with holding by the blower fan
Reforwarding exercises the air-conditioning heat exchanger for being not in exchanging heat working condition and 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 after the described first heating water system carries out the preset time of heating operation first, judge the outdoor environment temperature T4 and described
Whether water inlet water temperature T in meets the first preparatory condition；
B, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet first preparatory condition, then
When controlling the first heating water system to enter frosting accumulation mode, and obtaining the accumulation frosting of the first heating water system
Between；
C, when the accumulation heat pamp of the described first heating water system reaches very first time threshold 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 described second heats water system heating operation, and carries out heating operation second in the described second heating water system and preset
After time, judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet the second preparatory condition；
D, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet second preparatory condition, then
When controlling the second heating water system to enter frosting accumulation mode, and obtaining the accumulation frosting of the second heating water system
Between；
E, when the accumulation heat pamp of the described second heating water system reaches the second time threshold, control second system
Compressor shutdown in hot-water heating system, the blower fan continue to run with, and return and perform step a.
Wherein, the first preparatory condition and the second preparatory condition are demarcated all in accordance with actual conditions.
Also, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in do not meet the described first default bar
Part, after the control module then controls the first heating water system to continue the preset time of heating operation the 3rd, return continues to sentence
Whether the disconnected outdoor environment temperature T4 and water inlet water temperature T in meets first preparatory condition.If it is determined that the room
The external environment temperature T4 and water inlet water temperature T in does not meet second preparatory condition, and the control module then controls described
After two heating water systems continue the preset times of heating operation the 4th, return continue to judge the outdoor environment temperature T4 and it is described enter
Whether water water temperature T in meets second preparatory condition.
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 air-conditioning heat exchanger and described the in the first heating water system
Air-conditioning heat exchanger in two heating water systems shares a blower fan, and the defrosting control method comprises the following steps：
Detection outdoor environment temperature T4 in real time, and the water inlet water temperature T in of the air-cooled heat pump cold-hot water machine is detected in real time；
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 outdoor environment temperature T4 and described
Water temperature T of the intaking in controls first heating water system and the second heating water system alternating heating operation, with by described
The air-conditioning heat exchanger that the continuous service of blower fan makes to be not in exchanging heat working condition carries 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
Outdoor environment temperature T4 and the water inlet water temperature T in controls first heating water system and the second heating water system alternating
Heating operation, specifically include：
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
After the first heating water system carries out the preset time of heating operation first, the outdoor environment temperature T4 and the water inlet are judged
Whether water temperature T in meets the first preparatory condition；
B, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet first preparatory condition, then control
The first heating water system enters frosting accumulation mode, and obtains the accumulation heat pamp of the first heating water system；
C, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value, first water heating is controlled
Compressor shutdown in system, the blower fan continue to run with, and control it is described second heating water system in compressor start shooting with
Make the second heating water system heating operation, and the preset time of heating operation second is carried out in the described second heating water system
Afterwards, judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet the second preparatory condition；
D, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet second preparatory condition, then control
The second heating water system enters frosting accumulation mode, and obtains the accumulation heat pamp of the second heating water system；
E, when the accumulation heat pamp of the described second heating water system reaches the second time threshold, second water heating is controlled
Compressor shutdown in system, the blower fan continue to run with, and return and perform 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 in step a, such as
Fruit judges that the outdoor environment temperature T4 and the water inlet water temperature T in do not meet first preparatory condition, then controls described
After one heating water system continues the preset time of heating operation the 3rd, return continue to judge the outdoor environment temperature T4 and it is described enter
Whether water water temperature T in meets first preparatory condition.
5. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 3, it is characterised in that in step c, such as
Fruit judges that the outdoor environment temperature T4 and the water inlet water temperature T in do not meet second preparatory condition, then controls described
After two heating water systems continue the preset times of heating operation the 4th, return continue to judge the outdoor environment temperature T4 and it is described enter
Whether water water temperature T in meets second preparatory condition.
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, described first heats the air-conditioning heat exchanger and described second in water system
The air-conditioning heat exchanger heated in 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 water inlet water temperature T in of the air-cooled heat pump cold-hot water machine in real time；
Control module, for being sentenced when the air-cooled heat pump cold-hot water machine enters defrost pattern according to the outdoor environment temperature T4
It is disconnected whether to control the air-cooled heat pump cold-hot water machine to be 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 controls according to the outdoor environment temperature T4 and the water inlet water temperature T in
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.
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
After the first heating water system carries out the preset time of heating operation first, the outdoor environment temperature T4 and the water inlet are judged
Whether water temperature T in meets the first preparatory condition；
B, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet first preparatory condition, then control
The first heating water system enters frosting accumulation mode, and obtains the accumulation heat pamp of the first heating water system；
C, when the accumulation heat pamp of the described first heating water system reaches very first time threshold value, first water heating is controlled
Compressor shutdown in system, the blower fan continue to run with, and control it is described second heating water system in compressor start shooting with
Make the second heating water system heating operation, and the preset time of heating operation second is carried out in the described second heating water system
Afterwards, judge whether the outdoor environment temperature T4 and the water inlet water temperature T in meet the second preparatory condition；
D, if it is determined that the outdoor environment temperature T4 and the water inlet water temperature T in meet second preparatory condition, then control
The second heating water system enters frosting accumulation mode, and obtains the accumulation heat pamp of the second heating water system；
E, when the accumulation heat pamp of the described second heating water system reaches the second time threshold, second water heating is controlled
Compressor shutdown in system, the blower fan continue to run with, and return and perform step a.
9. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterised in that if it is determined that the outdoor environment temperature T4
First preparatory condition is not met with the water inlet water temperature T in, the control module then controls the first heating water system
After continuing the preset time of heating operation the 3rd, return continues to judge that the outdoor environment temperature T4 and the water inlet water temperature T in are
It is no to meet first preparatory condition.
10. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterised in that if it is determined that the outdoor environment temperature
The T4 and water inlet water temperature T in does not meet second preparatory condition, and the control module then controls the second heating water system
After system continues the preset time of heating operation the 4th, return continues to judge the outdoor environment temperature T4 and the water inlet water temperature T in
Whether second preparatory condition is met.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510617572.9A CN105318618B (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 |
|---|---|---|---|
| CN201510617572.9A CN105318618B (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 |
|---|---|
| CN105318618A CN105318618A (en) | 2016-02-10 |
| CN105318618B true CN105318618B (en) | 2017-12-08 |
Family
ID=55246552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510617572.9A Active CN105318618B (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) | CN105318618B (en) |
Families Citing this family (10)
| 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 |
| CN105865024B (en) * | 2016-04-26 | 2018-10-16 | 广东美的暖通设备有限公司 | Heat pump water-heating machine and its defrosting control method and device |
| 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 |
| CN107036348A (en) * | 2017-05-17 | 2017-08-11 | 广东美的制冷设备有限公司 | Air conditioner, the defrosting control method of air conditioner and system |
| CN107166741B (en) * | 2017-06-19 | 2019-10-01 | 广东美的暖通设备有限公司 | Heat pump unit and its anti-freeze control method |
| CN108826772B (en) * | 2018-05-03 | 2020-11-17 | 广东美的暖通设备有限公司 | Defrosting control method and system |
| 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 |
| CN113776221A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for realizing heat supply of screw machine heat pump cooling and heating unit |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832644A (en) * | 2010-05-31 | 2010-09-15 | 宁波海诚电器有限公司 | Air energy water heater and defrosting method thereof |
| CN102472539A (en) * | 2009-07-22 | 2012-05-23 | 夏普株式会社 | Air conditioner |
| CN102840629A (en) * | 2011-06-20 | 2012-12-26 | 珠海格力电器股份有限公司 | Heat pump air-conditioning system |
| CN202973694U (en) * | 2012-12-17 | 2013-06-05 | 广州科力新能源有限公司 | Double-fin double-fan hot pump system capable of defrosting in complementary mode |
| JP2014040954A (en) * | 2012-08-22 | 2014-03-06 | Corona Corp | Heat pump-type hot water heating device |
| CN104729029A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
-
2015
- 2015-09-23 CN CN201510617572.9A patent/CN105318618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472539A (en) * | 2009-07-22 | 2012-05-23 | 夏普株式会社 | Air conditioner |
| CN101832644A (en) * | 2010-05-31 | 2010-09-15 | 宁波海诚电器有限公司 | Air energy water heater and defrosting method thereof |
| CN102840629A (en) * | 2011-06-20 | 2012-12-26 | 珠海格力电器股份有限公司 | Heat pump air-conditioning system |
| JP2014040954A (en) * | 2012-08-22 | 2014-03-06 | Corona Corp | Heat pump-type hot water heating device |
| CN202973694U (en) * | 2012-12-17 | 2013-06-05 | 广州科力新能源有限公司 | Double-fin double-fan hot pump system capable of defrosting in complementary mode |
| CN104729029A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105318618A (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| 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 | |
| CN105115209B (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 | |
| JP5238001B2 (en) | Refrigeration cycle equipment | |
| CN103411340B (en) | Outdoor heat exchange device and Defrost method thereof | |
| CN105299841B (en) | The fault detection method of the heat exchange valve body of multiple on-line system and its outdoor heat exchanger | |
| JP6403896B2 (en) | Air conditioner | |
| WO2011093050A1 (en) | Refrigeration cycle apparatus | |
| CN104807258B (en) | Air conditioning system and heat accumulation and defrosting device and method thereof | |
| JP2010159926A (en) | Air conditioner | |
| CN104896581B (en) | The control method of air conditioner and air conditioner | |
| WO2012042692A1 (en) | Refrigeration cycle device | |
| CN105299988B (en) | Air-cooled heat pump cold-hot water machine and its prevent high voltage protective method | |
| CN104596000B (en) | Air conditioner and control method of air conditioner | |
| JP2013104623A (en) | Refrigeration cycle device and air conditioner with the same | |
| WO2013088684A1 (en) | Air conditioner | |
| US20200355419A1 (en) | Refrigerant cycle apparatus | |
| CN105241141B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| JP4666111B1 (en) | Refrigeration cycle equipment | |
| CN105135775B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method | |
| CN105823269B (en) | Heat pump system | |
| CN105485988A (en) | Air conditioner system and defrosting control method thereof | |
| CN107965853A (en) | The outdoor unit and control method of three control multi-line systems | |
| CN105115210B (en) | Air-cooled heat pump water chiller-heater units and its defrosting control method |
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 |