CN105318618A - Air cooled hot pump water cooling and heating machine and defrosting control method thereof - Google Patents
Air cooled hot pump water cooling and heating machine and defrosting control method thereof Download PDFInfo
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- CN105318618A CN105318618A CN201510617572.9A CN201510617572A CN105318618A CN 105318618 A CN105318618 A CN 105318618A CN 201510617572 A CN201510617572 A CN 201510617572A CN 105318618 A CN105318618 A CN 105318618A
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- 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
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- 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
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- 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
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air cooled hot pump water cooling and heating machine and a defrosting control method thereof. The air cooled hot pump water cooling and heating machine comprises a first water heating system and a second water heating system. An air conditioner heat exchanger of the first water heating system and an air conditioner heat exchanger of the second water heating system share a fan. The defrosting control method comprises the following steps that outdoor environment temperature T4 is detected in real time, and water inlet water temperature Tin is detected in real time; when a defrosting mode of the air cooled hot pump water cooling and heating machine is started, whether the air cooled hot pump water cooling and heating machine is controlled to be operated in an alternate defrosting mode or not is judged according to the T4; and if the air cooled hot pump water cooling and heating machine is operated in the alternate defrosting mode, the first water heating system and the second water heating system are controlled to be in alternate heating operation according to the T4 and the Tin so as to make defrosting of the air conditioner heat exchanger which is not in the heat exchanging working state is conducted through continuous operation of the fan. According to the air cooled hot pump water cooling and heating machine and the defrosting control method thereof, defrosting is conducted using the continuous operation of the fan through switch between the systems, the heating effect of the air cooled hot pump water cooling and heating machine is improved, and user experience is also improved.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly a kind of defrosting control method of air-cooled heat pump cold-hot water machine and a kind of air-cooled heat pump cold-hot water machine.
Background technology
For air heat pump type air-conditioning, when heating operation, need to absorb heat from air, but the change of environment temperature, domestic hot water side heat exchanger frosting can be caused, air heat pump type air-conditioning heating ability and efficiency are declined.In order to avoid heating effect is deteriorated, air heat pump type air-conditioning can run defrost pattern and defrost, and defrost pattern can not heat, and finally has a great impact the heating effect of entirety.
In correlation technique, when air heat pump type air-conditioning is in defrost process, the commutation of compressor operating, cross valve, simultaneously blower fan shut down, air heat pump type air-conditioning switches to refrigerating operaton, carries out defrost, after frost all melts by high temperature refrigerant, exit defrost, then proceed to heat.It can thus be appreciated that defrost process is process of refrigerastion, can impact, thus affect complete machine capability, affect Consumer's Experience to water temperature.
Summary of the invention
The present invention is intended to solve one of technical problem in above-mentioned technology at least to a certain extent.For this reason, one object of the present invention is the defrosting control method proposing a kind of air-cooled heat pump cold-hot water machine, do not need to control air-cooled heat pump cold-hot water machine and be converted to refrigerating operaton and blowing-out machine to carry out defrost, but carry out defrost by controlling to switch to utilize the continuation of blower fan to run between the first water heating system and the second water heating system, improve the heating effect of air-cooled heat pump cold-hot water machine, improve Consumer's Experience.
Another object of the present invention is to propose a kind of air-cooled heat pump cold-hot water machine.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of defrosting control method of air-cooled heat pump cold-hot water machine, wherein, described air-cooled heat pump cold-hot water machine comprises the first water heating system and the second water heating system, wherein, air-condition heat exchanger in air-condition heat exchanger in described first water heating system and described second water heating system shares a blower fan, described defrosting control method comprises the following steps: detect outdoor environment temperature T4 in real time, and detects the water inlet water temperature T in of described air-cooled heat pump cold-hot water machine in real time; When described air-cooled heat pump cold-hot water machine enters defrost pattern, judge whether that controlling described air-cooled heat pump cold-hot water machine runs in rotation defrost mode according to described outdoor environment temperature T4; If described air-cooled heat pump cold-hot water machine runs in rotation defrost mode, then replace heating operation according to described outdoor environment temperature T4 and the described water inlet water temperature T in described first water heating system of control and described second water heating system, carry out defrost to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of described blower fan.
According to the defrosting control method of the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, when judging that air-cooled heat pump cold-hot water machine runs in rotation defrost mode by detecting outdoor environment temperature T4 in real time, the first water heating system is controlled and the second water heating system replaces heating operation according to outdoor environment temperature T4 and the water inlet water temperature T in that detects in real time, defrost is carried out to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of blower fan, thus do not need to control air-cooled heat pump cold-hot water machine and be converted to refrigerating operaton and blowing-out machine to carry out defrost, greatly improve the heating effect of air-cooled heat pump cold-hot water machine, improve Consumer's Experience.
According to one embodiment of present invention, when described air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if described outdoor environment temperature T4 is greater than the first preset temperature, then controls described air-cooled heat pump cold-hot water machine and run in rotation defrost mode; If described outdoor environment temperature T4 is less than or equal to described first preset temperature, then controls described air-cooled heat pump cold-hot water machine and run with conventional Defrost mode.
According to one embodiment of present invention, heating operation is replaced according to described outdoor environment temperature T4 and the described water inlet water temperature T in described first water heating system of control and described second water heating system, specifically comprise: a, the compressor controlled in described first water heating system are started shooting to make described first water heating system heating operation, and after described first water heating system carries out heating operation first Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets first pre-conditioned; If it is described first pre-conditioned that b judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described first water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described first water heating system; C, when the accumulation heat pamp of described first water heating system reaches very first time threshold value, control the compressor shutdown in described first water heating system, described blower fan continues to run, and the compressor start controlled in described second water heating system is to make described second water heating system heating operation, and after described second water heating system carries out heating operation second Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets second pre-conditioned; If it is described second pre-conditioned that d judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described second water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described second water heating system; E, when the accumulation heat pamp of described second water heating system reaches the second time threshold, control the compressor shutdown in described second water heating system, described blower fan continues to run, and returns and perform step a.
According to one embodiment of present invention, in step a, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described first water heating system continues heating operation the 3rd Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.
According to one embodiment of present invention, in step c, if it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described second water heating system continues heating operation the 4th Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
For achieving the above object, a kind of air-cooled heat pump cold-hot water machine that the present invention's another aspect embodiment proposes, comprise: the first water heating system and the second water heating system, the air-condition heat exchanger in the air-condition heat exchanger in described first water heating system and described second water heating system shares a blower fan; First temperature detecting module, for detecting outdoor environment temperature T4 in real time; Second temperature detecting module, for detecting the water inlet water temperature T in of described air-cooled heat pump cold-hot water machine in real time; Control module, for judging whether that controlling described air-cooled heat pump cold-hot water machine runs in rotation defrost mode when described air-cooled heat pump cold-hot water machine enters defrost pattern according to described outdoor environment temperature T4, wherein, if described air-cooled heat pump cold-hot water machine runs in rotation defrost mode, described control module controls described first water heating system according to described outdoor environment temperature T4 and described water inlet water temperature T in and described second water heating system replaces heating operation, carries out defrost to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of described blower fan.
According to the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, without the need to carrying out defrost by conversion refrigerating operaton and blowing-out machine, but by switching between control first water heating system and the second water heating system, the continuation of the blower fan of utilization own runs, the heat making the frost be not on the air-condition heat exchanger of heat exchange duty absorb surrounding environment carries out defrost, thus reduce and heat decay when heating defrost, greatly improve heating effect, improve Consumer's Experience.
According to one embodiment of present invention, when described air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if described outdoor environment temperature T4 is greater than the first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs in rotation defrost mode; If described outdoor environment temperature T4 is less than or equal to described first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs with conventional Defrost mode.
According to one embodiment of present invention, described control module realizes the described first water heating system of control by following control flow and described second water heating system replaces heating operation: a, the compressor controlled in described first water heating system are started shooting to make described first water heating system heating operation, and after described first water heating system carries out heating operation first Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets first pre-conditioned; If it is described first pre-conditioned that b judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described first water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described first water heating system; C, when the accumulation heat pamp of described first water heating system reaches very first time threshold value, control the compressor shutdown in described first water heating system, described blower fan continues to run, and the compressor start controlled in described second water heating system is to make described second water heating system heating operation, and after described second water heating system carries out heating operation second Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets second pre-conditioned; If it is described second pre-conditioned that d judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described second water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described second water heating system; E, when the accumulation heat pamp of described second water heating system reaches the second time threshold, control the compressor shutdown in described second water heating system, described blower fan continues to run, and returns and perform step a.
According to one embodiment of present invention, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described first water heating system continues heating operation the 3rd Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.
According to one embodiment of present invention, if it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described second water heating system continues heating operation the 4th Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of air-cooled heat pump cold-hot water machine according to an embodiment of the invention;
Fig. 2 is the flow chart of the defrosting control method of air-cooled heat pump cold-hot water machine according to the embodiment of the present invention;
Fig. 3 is defrosting control flow chart when air-cooled heat pump cold-hot water machine runs in rotation defrost mode according to an embodiment of the invention; And
Fig. 4 is that air-cooled heat pump cold-hot water machine receives the control flow chart after heating start-up command according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Defrosting control method and the air-cooled heat pump cold-hot water machine of the air-cooled heat pump cold-hot water machine proposed according to the embodiment of the present invention are described with reference to the accompanying drawings.
As shown in Figure 1, air-cooled heat pump cold-hot water machine comprises the first water heating system and the second water heating system according to an embodiment of the invention, wherein, the air-condition heat exchanger in the first water heating system and the air-condition heat exchanger in the second water heating system share a blower fan.
As shown in Figure 2, the defrosting control method of this air-cooled heat pump cold-hot water machine comprises the following steps:
S1, detects outdoor environment temperature T4 in real time, and detects the water inlet water temperature T in of air-cooled heat pump cold-hot water machine in real time.
Wherein, detect outdoor environment temperature T4 by outdoor temperature sensor, detect water inlet water temperature T in by the temperature sensor being arranged on the water inlet pipe place of air-cooled heat pump cold-hot water machine.
According to outdoor environment temperature T4, S2, when air-cooled heat pump cold-hot water machine enters defrost pattern, judges whether that controlling air-cooled heat pump cold-hot water machine runs in rotation defrost mode.
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 greater than the first preset temperature, then controls air-cooled heat pump cold-hot water machine and run in rotation defrost mode; 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 and run with conventional Defrost mode.
Wherein, it should be noted that, the first preset temperature can be demarcated according to the concrete condition of air-cooled heat pump cold-hot water machine.And, conventional Defrost mode refer to air-cooled heat pump cold-hot water machine still with normal refrigerating operaton and blowing-out machine to carry out defrost, namely say, when outdoor environment temperature T4 is lower, air-cooled heat pump cold-hot water machine still carries out defrost by normal refrigerating operaton and blowing-out machine.
S3, if air-cooled heat pump cold-hot water machine runs in rotation defrost mode, then control the first water heating system and the second water heating system replaces heating operation, to make the air-condition heat exchanger not being in heat exchange duty carry out defrost by the continuous service of blower fan according to outdoor environment temperature T4 and water inlet water temperature T in.
That is, the defrosting control method of the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, when control air-cooled heat pump cold-hot water machine runs in rotation defrost mode, without the need to carrying out defrost by air-cooled heat pump cold-hot water machine conversion refrigerating operaton and blowing-out machine, but by switching between control first water heating system and the second water heating system, the continuation of the blower fan of utilization own runs, the heat making the frost be not on the air-condition heat exchanger of heat exchange duty absorb surrounding environment carries out defrost, thus reduce and heat decay when heating defrost, greatly improve heating effect, improve Consumer's Experience.
According to one embodiment of present invention, the first water heating system is controlled and the second water heating system replaces heating operation according to outdoor environment temperature T4 and water inlet water temperature T in, specifically comprise: a, the compressor controlled in the first water heating system are started shooting to make the first water heating system heating operation, and after the first water heating system carries out heating operation first Preset Time, judge that whether outdoor environment temperature T4 and water inlet water temperature T in meets first pre-conditioned; If b judges that outdoor environment temperature T4 and water inlet water temperature T in meets first pre-conditioned, then the first water heating system that controls enters frosting accumulation mode, and obtains the accumulation heat pamp of the first water heating system; C, when the accumulation heat pamp of the first water heating system reaches very first time threshold value, control the compressor shutdown in the first water heating system, blower fan continues to run, and the compressor start controlled in the second water heating system is to make the second water heating system heating operation, and after the second water heating system carries out heating operation second Preset Time, judge that whether outdoor environment temperature T4 and water inlet water temperature T in meets second pre-conditioned; If d judges that outdoor environment temperature T4 and water inlet water temperature T in meets second pre-conditioned, then the second water heating system that controls enters frosting accumulation mode, and obtains the accumulation heat pamp of the second water heating system; E, when the accumulation heat pamp of the second water heating system reaches the second time threshold, control the compressor shutdown in the second water heating system, blower fan continues to run, and returns and perform step a.
Particularly, as shown in Figure 3, defrosting control flow process when air-cooled heat pump cold-hot water machine runs in rotation defrost mode comprises the following steps:
S301, air-cooled heat pump cold-hot water machine runs with heating mode after receiving start-up command.
S302, the compressor controlled in the first water heating system such as A system is opened to make the first water heating system heating operation, and after the first water heating system heating operation first preset time t 1, performs step S303.
To outdoor environment temperature T4 and water inlet water temperature T in, S303, judges namely to judge whether outdoor environment temperature T4 and water inlet water temperature T in meets first pre-conditioned, wherein, first pre-conditionedly demarcates according to actual conditions.If met, then perform step S304; If do not met, then, after the first water heating system that controls continues heating operation the 3rd Preset Time, return step S303.
Wherein, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described first water heating system continues heating operation the 3rd Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.
S304, controls the first water heating system such as A system and enters frosting accumulation mode, and obtain accumulation heat pamp Ta.
S305, judges the rotation cumulative time whether accumulation heat pamp Ta reaches very first time threshold value and namely set.If so, then step S306 is performed; If not, then return step S305, continue to judge.
S306; control the compressor shutdown in the first water heating system; blower fan is kept to continue to run; and the compressor controlled in the second water heating system such as B system is opened to make the second water heating system heating operation; and after the second water heating system heating operation second preset time t 2, perform step S307.
To outdoor environment temperature T4 and water inlet water temperature T in, S307, judges namely to judge whether outdoor environment temperature T4 and water inlet water temperature T in meets second pre-conditioned, wherein, second pre-conditionedly demarcates according to actual conditions equally.If met, then perform step S308; If do not met, then, after the second water heating system that controls continues heating operation the 4th Preset Time, return step S307.
Wherein, if it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described second water heating system continues heating operation the 4th Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
S308, controls the second water heating system such as B system and enters frosting accumulation mode, and obtain accumulation heat pamp Tb.
S309, judges the rotation cumulative time whether accumulation heat pamp Tb reaches the second time threshold and namely set.If so, then step S310 is performed; If not, then return step S309, continue to judge.
S310, controls the compressor shutdown in the second water heating system, keeps blower fan to continue to run, then returns and perform step S302.
It can thus be appreciated that, in an embodiment of the present invention, when controlling air-cooled heat pump cold-hot water machine and running in rotation defrost mode, by controlling to switch in turn between the first water heating system and the second water heating system, the continuation of the blower fan of utilization own runs, and the heat making the frost be not on the air-condition heat exchanger of heat exchange duty absorb surrounding environment carries out defrost, thus reduces and heat decay when heating defrost, greatly improve heating effect, improve Consumer's Experience.
It should be noted that, in an embodiment of the present invention, as shown in Figure 4, comprise the following steps when air-cooled heat pump cold-hot water machine receives the control flow after heating start-up command:
S401, air-cooled heat pump cold-hot water machine runs with heating mode.
S402, judges whether air-cooled heat pump cold-hot water machine enters defrost pattern.If so, step S403 is performed; If not, step S404 is performed.
S403, judges whether outdoor environment temperature T4 is greater than the first preset temperature.If so, step S405 is performed; If not, step S406 is performed.
S404, air-cooled heat pump cold-hot water machine continues to run with heating mode.
S405, air-cooled heat pump cold-hot water machine runs in rotation defrost mode, until after defrost terminates, return step S402, continues to judge.
S406, air-cooled heat pump cold-hot water machine runs with conventional Defrost mode, until after defrost terminates, return step S402, continues to judge.
That is, air-cooled heat pump cold-hot water machine runs in rotation defrost mode and is only applicable to part outdoor environment temperature.
And, when air-cooled heat pump cold-hot water machine adopts rotation defrost mode to run, realize carrying out defrost by the mode of not blowing-out machine, cross valve commutation is not related in defrost process, so there will not be intermittent refrigeration (refrigeration defrost) and cause the fluctuating temperature of air-cooled heat pump cold-hot water machine, the heating effect of air-cooled heat pump cold-hot water machine also there will not be decay simultaneously, improves Consumer's Experience.
According to the defrosting control method of the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, when judging that air-cooled heat pump cold-hot water machine runs in rotation defrost mode by detecting outdoor environment temperature T4 in real time, the first water heating system is controlled and the second water heating system replaces heating operation according to outdoor environment temperature T4 and the water inlet water temperature T in that detects in real time, defrost is carried out to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of blower fan, thus do not need to control air-cooled heat pump cold-hot water machine and be converted to refrigerating operaton and blowing-out machine to carry out defrost, greatly improve the heating effect of air-cooled heat pump cold-hot water machine, improve 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 comprises: the first water heating system and the second water heating system, the first temperature detecting module, the second temperature detecting module (being arranged on the temperature sensor 101 at water inlet pipe place), control module.
Wherein, as shown in Figure 1, first water heating system comprises compressor 11, delivery temperature switch 12, high-voltage switch gear 13, cross valve 14, low tension switch 15, low pressure fill with 16, air-condition heat exchanger 17, electric expansion valve 18, second water heating system comprise compressor 21 equally, delivery temperature switch 22, high-voltage switch gear 23, cross valve 24, low tension switch 25, low pressure fill with 26, air-condition heat exchanger 27, electric expansion valve 28.And, air-condition heat exchanger 17 in first water heating system and the air-condition heat exchanger in the second water heating system 27 share a blower fan 10, first water heating system and the second water heating system also share hot water side heat exchanger and double-tube heat exchanger 20, simultaneously, at the equal set temperature sensor of water outlet pipe part and water inlet pipe place of double-tube heat exchanger 20, in water outlet pipe part, flow sensor is set, and between air-condition heat exchanger 17 and electric expansion valve 18 set temperature sensor 19, between air-condition heat exchanger 27 and electric expansion valve 28 set temperature sensor 29.
In an embodiment of the present invention, first temperature detecting module such as outdoor temperature sensor is used for detecting outdoor environment temperature T4 in real time, second temperature detecting module such as temperature sensor 101 is for detecting the water inlet water temperature T in of air-cooled heat pump cold-hot water machine in real time, control module is used for judging whether that controlling described air-cooled heat pump cold-hot water machine runs in rotation defrost mode when described air-cooled heat pump cold-hot water machine enters defrost pattern according to described outdoor environment temperature T4, wherein, if described air-cooled heat pump cold-hot water machine runs in rotation defrost mode, described control module controls described first water heating system according to described outdoor environment temperature T4 and described water inlet water temperature T in and described second water heating system replaces heating operation, defrost is carried out to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of described blower fan.
Further, when described air-cooled heat pump cold-hot water machine enters defrost pattern, wherein, if described outdoor environment temperature T4 is greater than the first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs in rotation defrost mode; If described outdoor environment temperature T4 is less than or equal to described first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs with conventional Defrost mode.
Wherein, it should be noted that, the first preset temperature can be demarcated according to the concrete condition of air-cooled heat pump cold-hot water machine.And, conventional Defrost mode refer to air-cooled heat pump cold-hot water machine still with normal refrigerating operaton and blowing-out machine to carry out defrost, namely say, when outdoor environment temperature T4 is lower, air-cooled heat pump cold-hot water machine still carries out defrost by normal refrigerating operaton and blowing-out machine.
Particularly, according to one embodiment of present invention, described control module replaces heating operation by the following control flow realization described first water heating system of control and described second water heating system:
A, the compressor controlled in described first water heating system are started shooting to make described first water heating system heating operation, and after described first water heating system carries out heating operation first Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets first pre-conditioned;
If it is described first pre-conditioned that b judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described first water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described first water heating system;
C, when the accumulation heat pamp of described first water heating system reaches very first time threshold value, control the compressor shutdown in described first water heating system, described blower fan continues to run, and the compressor start controlled in described second water heating system is to make described second water heating system heating operation, and after described second water heating system carries out heating operation second Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets second pre-conditioned;
If it is described second pre-conditioned that d judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described second water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described second water heating system;
E, when the accumulation heat pamp of described second water heating system reaches the second time threshold, control the compressor shutdown in described second water heating system, described blower fan continues to run, and returns and perform step a.
Wherein, first is pre-conditioned and second pre-conditionedly all to demarcate according to actual conditions.
And, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described first water heating system continues heating operation the 3rd Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.If it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described second water heating system continues heating operation the 4th Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
In sum, in an embodiment of the present invention, when air-cooled heat pump cold-hot water machine runs in rotation defrost mode, by controlling to switch in turn between the first water heating system and the second water heating system, the continuation of the blower fan of utilization own runs, and the heat making the frost be not on the air-condition heat exchanger of heat exchange duty absorb surrounding environment carries out defrost, thus reduces and heat decay when heating defrost, greatly improve heating effect, improve Consumer's Experience.
According to the air-cooled heat pump cold-hot water machine of the embodiment of the present invention, without the need to carrying out defrost by conversion refrigerating operaton and blowing-out machine, but by switching between control first water heating system and the second water heating system, the continuation of the blower fan of utilization own runs, the heat making the frost be not on the air-condition heat exchanger of heat exchange duty absorb surrounding environment carries out defrost, thus reduce and heat decay when heating defrost, greatly improve heating effect, improve Consumer's Experience.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. the defrosting control method of an air-cooled heat pump cold-hot water machine, it is characterized in that, described air-cooled heat pump cold-hot water machine comprises the first water heating system and the second water heating system, wherein, air-condition heat exchanger in air-condition heat exchanger in described first water heating system and described second water heating system shares a blower fan, and described defrosting control method comprises the following steps:
Real-time detection outdoor environment temperature T4, and the water inlet water temperature T in detecting described air-cooled heat pump cold-hot water machine in real time;
When described air-cooled heat pump cold-hot water machine enters defrost pattern, judge whether that controlling described air-cooled heat pump cold-hot water machine runs in rotation defrost mode according to described outdoor environment temperature T4;
If described air-cooled heat pump cold-hot water machine runs in rotation defrost mode, then replace heating operation according to described outdoor environment temperature T4 and the described water inlet water temperature T in described first water heating system of control and described second water heating system, carry out defrost to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of described blower fan.
2. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 1, is characterized in that, when described air-cooled heat pump cold-hot water machine enters defrost pattern, wherein,
If described outdoor environment temperature T4 is greater than the first preset temperature, then controls described air-cooled heat pump cold-hot water machine and run in rotation defrost mode;
If described outdoor environment temperature T4 is less than or equal to described first preset temperature, then controls described air-cooled heat pump cold-hot water machine and 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 characterized in that, replace heating operation according to described outdoor environment temperature T4 and the described water inlet water temperature T in described first water heating system of control and described second water heating system, specifically comprise:
A, the compressor controlled in described first water heating system are started shooting to make described first water heating system heating operation, and after described first water heating system carries out heating operation first Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets first pre-conditioned;
If it is described first pre-conditioned that b judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described first water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described first water heating system;
C, when the accumulation heat pamp of described first water heating system reaches very first time threshold value, control the compressor shutdown in described first water heating system, described blower fan continues to run, and the compressor start controlled in described second water heating system is to make described second water heating system heating operation, and after described second water heating system carries out heating operation second Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets second pre-conditioned;
If it is described second pre-conditioned that d judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described second water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described second water heating system;
E, when the accumulation heat pamp of described second water heating system reaches the second time threshold, control the compressor shutdown in described second water heating system, described blower fan continues to run, and returns 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 characterized in that, in step a, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described first water heating system continues heating operation the 3rd Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.
5. the defrosting control method of air-cooled heat pump cold-hot water machine as claimed in claim 3, it is characterized in that, in step c, if it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, then control after described second water heating system continues heating operation the 4th Preset Time, return that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
6. an air-cooled heat pump cold-hot water machine, is characterized in that, comprising:
First water heating system and the second water heating system, the air-condition heat exchanger in the air-condition heat exchanger in described first water heating system and described second water heating system shares a blower fan;
First temperature detecting module, for detecting outdoor environment temperature T4 in real time;
Second temperature detecting module, for detecting the water inlet water temperature T in of described air-cooled heat pump cold-hot water machine in real time;
Control module, for judging whether that controlling described air-cooled heat pump cold-hot water machine runs in rotation defrost mode when described air-cooled heat pump cold-hot water machine enters defrost pattern according to described outdoor environment temperature T4, wherein, if described air-cooled heat pump cold-hot water machine runs in rotation defrost mode, described control module controls described first water heating system according to described outdoor environment temperature T4 and described water inlet water temperature T in and described second water heating system replaces heating operation, carries out defrost to be made the air-condition heat exchanger not being in heat exchange duty by the continuous service of described blower fan.
7. air-cooled heat pump cold-hot water machine as claimed in claim 6, is characterized in that, when described air-cooled heat pump cold-hot water machine enters defrost pattern, wherein,
If described outdoor environment temperature T4 is greater than the first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs in rotation defrost mode;
If described outdoor environment temperature T4 is less than or equal to described first preset temperature, described control module then controls described air-cooled heat pump cold-hot water machine and runs with conventional Defrost mode.
8. air-cooled heat pump cold-hot water machine as claimed in claims 6 or 7, is characterized in that, described control module realizes controlling described first water heating system by following control flow and described second water heating system replaces heating operation:
A, the compressor controlled in described first water heating system are started shooting to make described first water heating system heating operation, and after described first water heating system carries out heating operation first Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets first pre-conditioned;
If it is described first pre-conditioned that b judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described first water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described first water heating system;
C, when the accumulation heat pamp of described first water heating system reaches very first time threshold value, control the compressor shutdown in described first water heating system, described blower fan continues to run, and the compressor start controlled in described second water heating system is to make described second water heating system heating operation, and after described second water heating system carries out heating operation second Preset Time, judge that whether described outdoor environment temperature T4 and described water inlet water temperature T in meets second pre-conditioned;
If it is described second pre-conditioned that d judges that described outdoor environment temperature T4 and described water inlet water temperature T in meets, then control described second water heating system and enter frosting accumulation mode, and obtain the accumulation heat pamp of described second water heating system;
E, when the accumulation heat pamp of described second water heating system reaches the second time threshold, control the compressor shutdown in described second water heating system, described blower fan continues to run, and returns and perform step a.
9. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterized in that, if it is described first pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described first water heating system continues heating operation the 3rd Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described first pre-conditioned.
10. air-cooled heat pump cold-hot water machine as claimed in claim 8, it is characterized in that, if it is described second pre-conditioned to judge that described outdoor environment temperature T4 and described water inlet water temperature T in does not meet, described control module then controls after described second water heating system continues heating operation the 4th Preset Time, returns that to continue to judge whether described outdoor environment temperature T4 and described water inlet water temperature T in meets described second pre-conditioned.
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| 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 |
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| CN201510617572.9A CN105318618B (en) | 2015-09-23 | 2015-09-23 | Air-cooled heat pump cold-hot water machine and its defrosting control method |
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