CN104819567A - Water heating system of heat pump and control method thereof - Google Patents

Water heating system of heat pump and control method thereof Download PDF

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Publication number
CN104819567A
CN104819567A CN201510264669.6A CN201510264669A CN104819567A CN 104819567 A CN104819567 A CN 104819567A CN 201510264669 A CN201510264669 A CN 201510264669A CN 104819567 A CN104819567 A CN 104819567A
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China
Prior art keywords
water
main
box
heat pump
value
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Pending
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CN201510264669.6A
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Chinese (zh)
Inventor
张家霖
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201510264669.6A priority Critical patent/CN104819567A/en
Publication of CN104819567A publication Critical patent/CN104819567A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a water heating system of a heat pump and a control method thereof. The water heating system of the heat pump comprises: a main water tank, a heat pump heating device, a water supply device, a main detecting device and a controller, wherein the heat pump heating device is connected with the main water tank through a pipeline so as to constitute a first circulating waterway between the main water tank and the heat pump heating device; the water supply device is connected with the main water tank and/or the heat pump heating device; the main detecting device is used for detecting the water level and water temperature in the main water tank; the controller is connected with the heat pump heating device, the water supply device and the main detecting device respectively, and used for controlling the water supply device to adjust the water level in the main water tank according to the water level target value of the main water tank corresponding to the current time and for controlling the heat pump heating device to adjust the water temperature in the main water tank according to the water temperature target value of the main water tank corresponding to the current time, wherein the water level target value and water temperature target value in the main water tank change with the change of time. The water heating system of the heat pump according to the embodiment of the invention is more energy-saving.

Description

Heat pump hot-water system and control method thereof
Technical field
The present invention relates to living electric apparatus field, especially relate to the control method of a kind of heat pump hot-water system and this heat pump hot-water system.
Background technology
In correlation technique, heat pump hot-water system can not need manually real-time carrying out to operate, and so not only bothers but also the probability of makeing mistakes also can increase.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention needs to propose a kind of heat pump hot-water system, and this heat pump hot-water system is more energy-conservation.
The present invention also needs the control method proposing a kind of heat pump hot-water system.
The heat pump hot-water system of embodiment comprises according to a first aspect of the present invention: main water box; Heat pump heating device, described heat pump heating device is connected to be formed the first circulation waterway with described main water box between described main water box and described heat pump heating device by pipeline; Water supply installation, described water supply installation is connected with described main water box and/or described heat pump heating device; Main checkout gear, described main checkout gear is for detecting water level in described main water box and water temperature; Controller, described controller is connected with described heat pump heating device, described water supply installation, described main checkout gear respectively, water level in described main water box is adjusted for controlling described water supply installation according to the water level desired value of main water box corresponding to current time, and control described heat pump heating device according to the water temperature desired value of main water box corresponding to current time and adjust water temperature in described main water box, wherein, the water level desired value in described main water box and water temperature desired value change over time.
Therefore compared to prior art, there is energy-conservation advantage according to the heat pump hot-water system of the embodiment of the present invention, can apply, and this system has advantageously advantage in market competition.
In addition, also following additional technical feature can be had according to heat pump hot-water system of the present invention:
According to one embodiment of present invention, the water temperature desired value of the water level desired value of the main water box that described current time is corresponding and main water box corresponding to described current time is set by the user.
According to one embodiment of present invention, described main water box is provided with main water box EGR, and described main water box EGR carries out self-loopa for making the water in described main water box.
According to one embodiment of present invention, described heat pump hot-water system also comprises solar heat collector, and described solar heat collector is connected to be formed the second circulation waterway with described main water box between described main water box and described solar heat collector by pipeline; Described controller is connected with described solar heat collector further, adjusts water temperature in described main water box for controlling described solar heat collector and/or described heat pump heating device according to the water temperature desired value of main water box corresponding to current time.
According to one embodiment of present invention, described heat pump hot-water system also comprises: secondary water tank, and described water supply installation is connected with described secondary water tank further; Solar heat collector, described solar heat collector is connected to be formed the 3rd circulation waterway with described secondary water tank between described secondary water tank and described solar heat collector by pipeline.
According to one embodiment of present invention, described secondary water tank is provided with the secondary water outlet of water tank for water outlet; Secondary checkout gear, described secondary checkout gear is for detecting water level in described secondary water tank and water temperature; Described controller is connected with described solar heat collector, described secondary checkout gear further, for controlling the water level in the described secondary water tank of described water supply installation adjustment according to the water level desired value of secondary water tank corresponding to current time, and control the water temperature in the described secondary water tank of described solar heat collector adjustment according to the water temperature desired value of secondary water tank corresponding to current time, wherein, the water level desired value in described secondary water tank and water temperature desired value change over time.
According to one embodiment of present invention, described main water box and described secondary water tank are connected by pipeline to be formed the 4th circulation waterway between described main water box and described secondary water tank; On-off system, described on-off system is located on the pipeline between described main water box and described secondary water tank; Described controller is connected with described on-off system with described solar heat collector further, adjust water level in described main water box for controlling described water supply installation and/or described on-off system according to the water level desired value of main water box corresponding to current time, and control the water temperature that adjusts in described heat pump heating device and/or described on-off system in described main water box according to the water temperature desired value of main water box corresponding to current time.
According to one embodiment of present invention, to comprise multiple and multiple described heat pump heating device parallel with one another for described heat pump heating device.
According to the control method of the heat pump hot-water system of the embodiment of the present invention, comprise the following steps:
S10, acquisition current time;
S20, according to the water level desired value of described current time setting main water box and water temperature desired value, wherein, the water level desired value of the main water box that the different time is corresponding different and water temperature desired value;
S30, obtain in described main water box current main water box in water level and water temperature in main water box;
Water level in S40, more described current main water box and the water level desired value of described main water box, control the opening/closing of described water supply installation;
Water temperature in more described current main water box and the water temperature desired value of described main water box, control the opening/closing of described heat pump heating device.
By utilizing above-mentioned control method, thus can time heat pump hot-water system energy-saving effect more optimize.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of heat pump hot-water system according to an embodiment of the invention;
Fig. 2 is the schematic diagram of heat pump hot-water system in accordance with another embodiment of the present invention;
Fig. 3 is the schematic diagram of the heat pump hot-water system according to third embodiment of the invention;
Fig. 4 is the schematic diagram of the heat pump hot-water system according to four embodiment of the invention;
Fig. 5 is the control method of the heat pump hot-water system of the embodiment shown in Fig. 1.
Reference numeral:
Heat pump hot-water system 100;
Main water box 1; First circulation waterway 11; Main water box EGR 12; Second circulation waterway 13;
Heat pump heating device 2;
Water supply installation 3;
Controller 4;
Solar heat collector 5;
Secondary water tank 6; 3rd circulation waterway 61; 4th circulation waterway 62;
On-off system 7; The pump housing 8; Switch 9.
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.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; 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.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1-Fig. 4, the heat pump hot-water system 100 according to the embodiment of the present invention is described.Heat pump hot-water system 100 according to the embodiment of the present invention comprises: main water box 1, heat pump heating device 2, water supply installation 3, main checkout gear and controller 4.
Main water box 1 is provided with main water box 1 delivery port for water outlet, and user can fetch water from this main water box 1 delivery port.Heat pump heating device 2 is connected between main water box 1 and heat pump heating device 2, formed the first circulation waterway 11 with main water box 1 by pipeline, be understandable that, heat pump heating device 2 comprises the compressor, condenser, throttling arrangement and the evaporimeter that are connected successively, cold-producing medium, in this heat pump heating device 2 reciprocation cycle, is heated the water flow in heat pump heating device 2 by the suction exothermic phenomenon of the phase transition process at condenser (or evaporimeter) inner refrigerant.
Wherein, " the first circulation waterway 11 " is referred to and is connected by pipeline between main water box 1 and heat pump heating device 2, such water can flow out from main water box 1 and flow in heat pump heating device 2 and carry out heating or not heating, then discharges in heat pump heating device 2 and flow back to main water box 1.Alternatively, this first circulation waterway 11 can be provided with for conducting or the switch 9 blocking this water route, and flow in this first circulation waterway 11 to drive water, the pump housing 8 for driving water flow can be set, the duty that controller 4 is connected to control the pump housing 8 and switch 9 with switch 9 with the pump housing 8.
Water supply installation 3 is connected with main water box 1 and/or heat pump heating device 2, and wherein water supply installation 3 is for feeding the water of heat pump hot-water system 100 outside to this heat pump hot-water system 100.In an embodiment of the present invention, water supply installation 3 can be arranged on the feed water valve on main water box 1 and/or heat pump heating device 2.It should be explained that, water supply installation 3 can be arranged on main water box 1 for supplying water directly in main water box 1, or water supply installation 3 can be arranged on heat pump heating device 2, for supplying water in heat pump heating device 2, and by the first circulation waterway 11, water transport is delivered in main water box 1 again, or water supply installation 3 also can be arranged on heat pump heating device 2 and main water box 1, can accelerate feed rate thus simultaneously.
Main checkout gear is for detecting water level in main water box 1 and water temperature, and alternatively, this main checkout gear can comprise for detecting the level switch of main water box 1 water level and the temperature detector for detecting main water box 1 water temperature.
Controller 4 is connected with heat pump heating device 2, water supply installation 3, main checkout gear respectively, water level in main water box 1 is adjusted for controlling water supply installation 3 according to the water level desired value of main water box 1 corresponding to current time, and control heat pump heating device 2 according to the water temperature desired value of main water box 1 corresponding to current time and adjust water temperature in main water box 1, wherein, the water level desired value of the main water box 1 in main water box 1 and the water temperature desired value of main water box 1 change over time.
Particularly, it should be explained that, in different time, controller 4 can set the water level desired value of different main water box 1, application level switch detects the water level of the main water box 1 of current time, when the water level of current main water box 1 does not reach the water level desired value of current main water box 1, controller 4 can control water supply installation 3 and works and carry out supplying water until reach the water level desired value of main water box 1 in main water box 1; Correspondingly, in different time, controller 4 can set the water temperature desired value of different main water box 1, application temperature detector detects the water temperature of the main water box 1 of current time, when the water temperature of current main water box 1 does not reach the water temperature desired value of current main water box 1, controller 4 can control heat pump heating device 2 and work, to heat the water in main water box 1 until reach the water temperature desired value of main water box 1.
Be understandable that, user in water tank water temperature require and water level require change according to the difference of time.Such as, when people work by day, to the requirement of the water yield and water temperature when the requirement of domestic water consumption and water temperature require that people go home well below night.Therefore according to the heat pump hot-water system 100 of the embodiment of the present invention by arranging controller 4, set water level desired value and the water temperature desired value of different main water box 1 according to the difference of time, thus in different time sections, control to main water box 1 Automatic-heating and automatic water supplement can be required to the difference of water temperature and the water yield according to user.Can avoid hot-water heating system of the prior art no matter when identical water level and water temperature desired value are all set and the energy waste caused like this.Therefore compared to prior art, there is energy-conservation advantage according to the heat pump hot-water system 100 of the embodiment of the present invention, can apply, and this system has advantageously advantage in market competition.
Alternatively, the water temperature desired value of the water level desired value of the main water box 1 that current time is corresponding and main water box 1 corresponding to current time is set by the user.User can according to one day not to the time period to the water temperature desired value of the corresponding main water box 1 of requirements set of water temperature and the water yield and water level desired value.Certainly moreover, user can also according to one week, one month, the requirement of time periods different in a season or even year to water temperature and the water yield set water temperature desired value in main water box 1 and water level desired value.The requirement that can more be close to the users of this heat pump hot-water system 100 thus, controls and uses freer, convenient, can improve the intellectuality of family expenses, commercial heat pump hot-water heating system thus.
Below with reference to Fig. 5, describe the control method according to heat pump hot-water system embodiment illustrated in fig. 1, comprise the following steps:
S10, acquisition current time.
S20, according to the current time setting water level desired value of main water box and water temperature desired value, wherein, the water level desired value of the main water box that the different time is corresponding different and water temperature desired value.
Water level in current main water box in S30, acquisition main water box and the water temperature in main water box; Here above-mentioned main checkout gear can be utilized to detect in real time the water level in main water box and water temperature.
S40, for the water lev el control in main water box: the water level desired value of the water level in more current main water box and main water box, controls water supply installation opening/closing;
Particularly, when the water level in current main water box is less than the water level desired value of main water box, controller can control water supply installation and open, thus carries out moisturizing to main water box;
When water level in current main water box is more than or equal to the water level desired value of main water box, controller can control water supply installation and cut out, thus stops carrying out moisturizing to main water box.
Water temperature in main water box is controlled: the water temperature desired value of the water temperature in more current main water box and main water box, control the opening/closing of heat pump heating device.
Particularly, when the water temperature in current main water box is less than the water temperature desired value of main water box corresponding to current time, controller can control heat pump heating device and open, thus heats the water in main water box;
When water temperature in current main water box is more than or equal to the water level desired value of main water box corresponding to current time, controller can control heat pump heating device and cut out, thus stops the heating to main water box.
Referring to the concrete example that table 1 provides, describe above-mentioned control method in detail.
The water level desired value of table 1 different time sections to main water box and the setting of water temperature desired value
Known by above table, when people's every morning just WA (5 .-8 point), user needs to wash one's face and rinse one's mouth, now the water temperature desired value of main water box can be set in 40% of main water box volume, the water temperature desired value of main water box is set in 45 DEG C, can be used for wash one's face and rinse one's mouth the morning of many mouthfuls of people thus; After 8 o'clock, people start to work outside the home successively, requirement for water temperature and the water yield is so not high, therefore the water temperature desired value of main water box can be set in 20% of main water box volume, the water temperature desired value of main water box is set in 30 DEG C, water circulation amount can be reduced like this, and the load of heat pump heating device can be reduced, thus can energy-conserving action be realized; When after 17 o'clock to 22 points, people After Hours go home to carry out activity successively, action needs such as cooking, wash the dishes, have a bath uses a large amount of water, it is now intraday water use peak, now the water temperature desired value of main water box can be set in 100% of main water box volume, the water temperature desired value of main water box is set in 55 DEG C, meets the living needs of people thus; When 22, later to some next day 5, people are generally in sleep state, now can control water supply installation and heat pump heating device closedown, can save the energy thus.
Wherein, above-mentioned control objectives value is arranged with the corresponding of time, only for illustrative purposes, does not limit protection scope of the present invention.
In embodiment as shown in Figure 1, it is parallel with one another that heat pump heating device 2 comprises multiple and multiple heat pump heating device 2.The heating of heat pump hot-water system 100 pairs of main water box 1 can be made so rapider.And can not interfere with each other each other between heat pump heating device 2 parallel with one another, when one or several in multiple heat pump heating device 2 damages, remaining heat pump heating device 2 can also work on.
In embodiment as shown in Figure 2, with the embodiment shown in Fig. 1 unlike, also comprise solar heat collector 5 in this embodiment.Solar heat collector 5 is connected between main water box 1 and solar heat collector 5, formed the second circulation waterway 13 with main water box 1 by pipeline.It is to be understood that the heating that solar heat collector 5 can utilize solar energy to change into heat energy and then realize the water in main water box 1.Wherein " the second circulation waterway 13 " refers to that water in main water box 1 can flow in solar heat collector 5 after flowing out, and the water after heating in this solar heat collector 5 returns in main water box 1 and carries out storing thus supply user to take.Wherein, this second circulation waterway 13 can be provided with for conducting or the switch 9 blocking this water route, and flow in this second circulation waterway 13 to drive water, the pump housing 8 for driving water flow can be set, the duty that controller 4 is connected to control the pump housing 8 and switch 9 with switch 9 with the pump housing 8.
Wherein, controller 4 is connected with solar heat collector 5 further, adjusts water temperature in main water box 1 for controlling solar heat collector 5 and/or heat pump heating device 2 according to the water temperature desired value of main water box 1 corresponding to current time.That is, by arranging solar heat collector 5 thus this clean energy resource of solar energy can being utilized to heat to the water in main water box 1, it should be noted that, solar heat collector 5 and heat pump heating device 2 are parallel-connection structure, thus solar heat collector 5 and heat pump heating device 2 can heat separately main water box 1, do not interfered each other, controlled more freely.
It should be explained that, when the comparative result according to the water temperature desired value of main water box 1 corresponding to current time and the actual water temperature detected value of current main water box 1, when needing to heat the water in main water box 1, solar heat collector 5 can be only utilized to heat, such as, when daytime, intensity of sunshine was larger, only utilize solar heat collector 5 just can meet demand for heat to water in main water box 1, energy consumption can be reduced greatly further thus; Such as, when not having situation at sunshine night, heat pump heating device 2 also can be only utilized to heat; Certainly in order to improve the efficiency of heating surface, or when single heater cannot meet demand for heat, the water in solar heat collector 5 and heat pump heating device 2 pairs of main water box 1 can be utilized to heat simultaneously.
As shown in Figure 2, main water box 1 can be provided with main water box EGR 12, main water box EGR 12 carries out self-loopa for making the water in main water box 1.The water in main water box 1 can be made like this to circulate when needs, increase the even water temperature in main water box 1 with this.Wherein, main water box 1 can be provided with self-circulation pipeline, self-circulation pipeline can be arranged and drive the pump housing 8 of water flow and the switch 9 for this self-circulation pipeline of Trimmed sums conducting, the duty that controller 4 is connected to control the pump housing 8 and switch 9 with switch 9 with the pump housing 8.
Control method according to heat pump hot-water system embodiment illustrated in fig. 2 is described below, with the control method of the heat pump hot-water system shown in Fig. 1 unlike, solar heat collector can also be relied on control to the control of water temperature.
Namely S402, for the water lev el control in main water box: the water level desired value of the water level in more current main water box and main water box, controls water supply installation opening/closing;
Water temperature in main water box is controlled: the water temperature desired value of the water temperature in more current main water box and main water box, control the opening/closing of heat pump heating device and/or solar heat collector.
In embodiment as shown in Figure 3, with the embodiment shown in Fig. 1 unlike, also comprise secondary water tank 6 and solar heat collector 5.Water supply installation 3 is connected with secondary water tank 6 further, thus can carry out moisturizing to secondary water tank 6.Simultaneously, water supply installation 3 can also be connected with main water box 1, to supply water to main water box 1.
Solar heat collector 5 is connected to be formed the 3rd circulation waterway 61 with secondary water tank 6 between secondary water tank 6 and solar heat collector 5 by pipeline, the heating that solar heat collector 5 can utilize solar energy to change into heat energy and then realize the water in secondary water tank 6.Wherein " the 3rd circulation waterway 61 " refers to that water in secondary water tank 6 can flow in solar heat collector 5 after flowing out, and the water after heating in this solar heat collector 5 returns in secondary water tank 6 and carries out storing thus supply user to take.Wherein, 3rd circulation waterway 61 can be provided with for conducting or the switch 9 blocking this water route, and flow in the 3rd circulation waterway 61 to drive water, the pump housing 8 for driving water flow can be set, the duty that controller 4 is connected to control the pump housing 8 and switch 9 with switch 9 with the pump housing 8.
Further, the water in main water box 1 is not communicated with mutually with the aqueous phase in secondary water tank 6, and the control in main water box 1 and secondary water tank 6 is non-interference.Particularly, secondary water tank 6 is also provided with secondary water tank 6 delivery port for water outlet, user can from water intaking in this secondary water tank 6 thus.
Further, secondary checkout gear is also provided with in secondary water tank 6, secondary checkout gear is for detecting water level in secondary water tank 6 and water temperature, and particularly, secondary checkout gear can comprise the level switch for detecting the water level in secondary water tank 6 and the temperature detector for detecting the water temperature in secondary water tank 6.
Controller 4 is connected with solar heat collector 5, secondary checkout gear further, water level in secondary water tank 6 is adjusted for controlling water supply installation 3 according to the water level desired value of secondary water tank 6 corresponding to current time, and control solar heat collector 5 according to the water temperature desired value of secondary water tank 6 corresponding to current time and adjust water temperature in secondary water tank 6, wherein, the water level desired value in secondary water tank 6 and water temperature desired value change over time.
Particularly, it should be explained that, in different time, controller 4 can set the water level desired value of different secondary water tanks 6, application level switch detects the water level of the secondary water tank 6 of current time, when the water level of current secondary water tank 6 does not reach the water level desired value of current secondary water tank 6, controller 4 can control water supply installation 3 and works and carry out supplying water until reach the water level desired value of secondary water tank 6 in secondary water tank 6; Correspondingly, in different time, controller 4 can set the water temperature desired value of different secondary water tanks 6, application temperature detector detects the water temperature of the secondary water tank 6 of current time, when the water temperature of current secondary water tank 6 does not reach the water temperature desired value of current secondary water tank 6, controller 4 can control solar heat collector 5 and work, to heat until reach the water temperature desired value of secondary water tank 6 water in secondary water tank 6.
Due to according to the different needs of different time people to water temperature and the water yield, water level desired value and the water temperature desired value of different secondary water tanks 6 are set by the difference of time, thus compared to prior art, there is energy-conservation advantage according to the heat pump hot-water system 100 of the embodiment of the present invention.
It is appreciated of course that the water temperature in controller 4 pairs of main water box 1 and the control of water level and the control of controller 4 to the water temperature in secondary water tank 6 and water level can be carried out simultaneously, user can be facilitated thus to the control of main water box 1 and secondary water tank 6.
Control method according to heat pump hot-water system embodiment illustrated in fig. 3 is described below, comprises the following steps:
S103, acquisition current time.
S203, according to the current time setting water level desired value of main water box and water temperature desired value, wherein, the water level desired value of the main water box that the different time is corresponding different and water temperature desired value;
Water level desired value and the water temperature desired value of secondary water tank is set according to current time, wherein, the water level desired value of the secondary water tank that the different time is corresponding different and water temperature desired value.
Water level in current main water box in S303, acquisition main water box and the water temperature in main water box; Here above-mentioned main checkout gear can be utilized to detect in real time the water level in main water box and water temperature;
Obtain the water level in the current secondary water tank in secondary water tank and the water temperature in secondary water tank; Here above-mentioned secondary checkout gear can be utilized to detect in real time the water level in secondary water tank and water temperature.
S403, for the water lev el control in main water box: the water level desired value of the water level in more current main water box and main water box, controls water supply installation opening/closing;
Water temperature in main water box is controlled: the water temperature desired value of the water temperature in more current main water box and main water box, control the opening/closing of heat pump heating device.
Water lev el control in secondary water tank: the water level in more current secondary water tank and the water level desired value of secondary water tank, controls the opening/closing of water supply installation;
Water temperature in secondary water tank is controlled: the water temperature in more current secondary water tank and the water temperature desired value of secondary water tank, control the opening/closing of solar heat collector.
In embodiment as shown in Figure 4, with the embodiment shown in Fig. 3 unlike, main water box 1 and secondary water tank 6 can also be connected by pipeline to be formed the 4th circulation waterway 62 between main water box 1 and secondary water tank 6, water in such main water box 1 and the water in secondary water tank 6 can be interconnected, and mutually supplement or heating.Wherein " the 4th circulation waterway 62 " refers to that water in main water box 1 can flow in secondary water tank 6 after flowing out, and the water in secondary water tank 6 can flow to main water box 1 after flowing out.
Further, also comprise the on-off system 7 on the pipeline that is located between main water box 1 and secondary water tank 6, that is, this on-off system 7 can be located on the 4th circulation waterway 62, for the waterway channel between conducting main water box 1 and secondary water tank 6.
In this embodiment, user can from water intaking in main water box 1, and user also can from water intaking in secondary water tank 6, and certain user can also simultaneously from water intaking in main water box 1 and secondary water tank 6.Wherein, and in order to drive water to flow in the 4th circulation waterway 62, the pump housing 8 for driving water flow can be set, the duty that controller 4 is connected with the pump housing 8 to control the pump housing 8.
In the concrete example shown in Fig. 4, only from water intaking in main water box 1, cannot can will fetch water as example is described in detail in secondary water tank 6 with user.
Controller 4 is connected with on-off system 7 with solar heat collector 5 further, adjust water level in main water box 1 for controlling water supply installation 3 and/or on-off system 7 according to the water level desired value of main water box 1 corresponding to current time, and control the water temperature that adjusts in heat pump heating device 2 and/or on-off system 7 in main water box 1 according to the water temperature desired value of main water box 1 corresponding to current time.
That is, in current time, when water level in main water box 1 does not reach the water level desired value corresponding to current time, controller 4 can control water supply installation 3 and open for supplying water in main water box 1, or controller 4 can control on-off system 7 and opens and utilize the pump housing 8 to be incorporated in main water box 1 by the water in secondary water tank 6, thus is reached for the object that main water box 1 carries out moisturizing; In like manner, in current time, when water temperature in main water box 1 does not reach the water temperature desired value corresponding to current time, controller 4 can control heat pump heating device 2 and open and heat the water in main water box 1, or controller 4 can control on-off system 7 and opens and utilize the pump housing 8 to be incorporated in main water box 1 by the water of the higher temperature in secondary water tank 6, thus be reached for the object that main water box 1 carries out heating.Certainly here by introducing the way of the water of the higher temperature in secondary water tank 6, need to control water temperature in secondary water tank 6 higher than the water temperature in main water box 1, the rising of the water temperature in secondary water tank 6 can utilize solar heat collector 5 to heat.
Control method according to heat pump hot-water system embodiment illustrated in fig. 4 is described below, comprises the following steps:
S104, acquisition current time.
S204, according to the current time setting water level desired value of main water box and water temperature desired value, wherein, the water level desired value of the main water box that the different time is corresponding different and water temperature desired value.
Water level in current main water box in S304, acquisition main water box and the water temperature in main water box; Here above-mentioned main checkout gear can be utilized to detect in real time the water level in main water box and water temperature;
Obtain the water level in the current secondary water tank in secondary water tank and the water temperature in secondary water tank; Here above-mentioned secondary checkout gear can be utilized to detect in real time the water level in secondary water tank and water temperature.
S404, for the water lev el control in main water box: the water level in the water level desired value of the water level in more current main water box, main water box and current secondary water tank, controls the opening/closing of water supply installation and/or on-off system;
Water temperature in main water box is controlled: the water temperature in the water temperature desired value of the water temperature in more current main water box, main water box and current secondary water tank, control the opening/closing of heat pump heating device/or on-off system.
To sum up, therefore more energy-conservation according to the heat pump hot-water system 100 of the embodiment of the present invention.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " 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, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.

Claims (9)

1. a heat pump hot-water system, is characterized in that, comprising:
Main water box;
Heat pump heating device, described heat pump heating device is connected to be formed the first circulation waterway with described main water box between described main water box and described heat pump heating device by pipeline;
Water supply installation, described water supply installation is connected with described main water box and/or described heat pump heating device;
Main checkout gear, described main checkout gear is for detecting water level in described main water box and water temperature;
Controller, described controller is connected with described heat pump heating device, described water supply installation, described main checkout gear respectively, water level in described main water box is adjusted for controlling described water supply installation according to the water level desired value of main water box corresponding to current time, and control described heat pump heating device according to the water temperature desired value of main water box corresponding to current time and adjust water temperature in described main water box, wherein, the water level desired value in described main water box and water temperature desired value change over time.
2. heat pump hot-water system according to claim 1, is characterized in that, the water temperature desired value of the water level desired value of the main water box that described current time is corresponding and main water box corresponding to described current time is set by the user.
3. heat pump hot-water system according to claim 1, is characterized in that, described main water box is provided with main water box EGR, and described main water box EGR carries out self-loopa for making the water in described main water box.
4. according to the heat pump hot-water system shown in claim 1, it is characterized in that, also comprise solar heat collector, described solar heat collector is connected to be formed the second circulation waterway with described main water box between described main water box and described solar heat collector by pipeline;
Described controller is connected with described solar heat collector further, adjusts water temperature in described main water box for controlling described solar heat collector and/or described heat pump heating device according to the water temperature desired value of main water box corresponding to current time.
5. heat pump hot-water system according to claim 1, is characterized in that, also comprises:
Secondary water tank, described water supply installation is connected with described secondary water tank further;
Solar heat collector, described solar heat collector is connected to be formed the 3rd circulation waterway with described secondary water tank between described secondary water tank and described solar heat collector by pipeline.
6. heat pump hot-water system according to claim 5, is characterized in that, described secondary water tank is provided with the secondary water outlet of water tank for water outlet;
Secondary checkout gear, described secondary checkout gear is for detecting water level in described secondary water tank and water temperature;
Described controller is connected with described solar heat collector, described secondary checkout gear further, for controlling the water level in the described secondary water tank of described water supply installation adjustment according to the water level desired value of secondary water tank corresponding to current time, and control the water temperature in the described secondary water tank of described solar heat collector adjustment according to the water temperature desired value of secondary water tank corresponding to current time, wherein, the water level desired value in described secondary water tank and water temperature desired value change over time.
7. heat pump hot-water system according to claim 5, is characterized in that, described main water box and described secondary water tank are connected by pipeline to be formed the 4th circulation waterway between described main water box and described secondary water tank;
On-off system, described on-off system is located on the pipeline between described main water box and described secondary water tank;
Described controller is connected with described on-off system with described solar heat collector further, adjust water level in described main water box for controlling described water supply installation and/or described on-off system according to the water level desired value of main water box corresponding to current time, and control the water temperature that adjusts in described heat pump heating device and/or described on-off system in described main water box according to the water temperature desired value of main water box corresponding to current time.
8. the heat pump hot-water system according to any one of claim 1-7, is characterized in that, it is parallel with one another that described heat pump heating device comprises multiple and multiple described heat pump heating device.
9. a control method for the heat pump hot-water system according to any one of claim 1-8, is characterized in that, comprises the following steps:
S10, acquisition current time;
S20, according to the water level desired value of described current time setting main water box and water temperature desired value, wherein, the water level desired value of the main water box that the different time is corresponding different and water temperature desired value;
S30, obtain in described main water box current main water box in water level and water temperature in main water box;
Water level in S40, more described current main water box and the water level desired value of described main water box, control the opening/closing of described water supply installation;
Water temperature in more described current main water box and the water temperature desired value of described main water box, control the opening/closing of described heat pump heating device.
CN201510264669.6A 2015-05-21 2015-05-21 Water heating system of heat pump and control method thereof Pending CN104819567A (en)

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Application publication date: 20150805