CN104236089A - Water heater and control method thereof - Google Patents
Water heater and control method thereof Download PDFInfo
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- CN104236089A CN104236089A CN201310248621.7A CN201310248621A CN104236089A CN 104236089 A CN104236089 A CN 104236089A CN 201310248621 A CN201310248621 A CN 201310248621A CN 104236089 A CN104236089 A CN 104236089A
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Abstract
The invention discloses a water heater and a control method thereof. The water heater comprises a water tank, a coil pipe, a heat pump main unit, a heat exchanging module, a solar panel module, a first detecting device for detecting water temperature in the water tank, a second detecting device for detecting the temperature of the heat exchanging medium in the solar panel module, a third detecting device for detecting outdoor environmental temperature and a controller. A first circulating loop is formed between the water tank and the heat exchanging module. A second circulating loop is formed between the solar panel model and the heat exchanging module. Water in the first circulating loop exchanges heat with the heat exchanging medium in the second circulating loop. The controller controls the operation states of the heat pump main unit, the heat exchanging module and the solar panel module according to the detecting results of the first detecting device, the second detecting device and the third detecting device. The water heater has the advantages that solar energy can be fully utilized while hot water supply can be guaranteed, and energy utilization efficiency is increased.
Description
Technical field
The present invention relates to household appliance technical field, especially relate to a kind of water heater and control method thereof.
Background technology
Teat pump boiler adopts inverse Carnot cycle principle, absorbs heat and carrys out heating water, realize the transfer of energy from air.Solar water heater can not power consumption or consume little electric power and carry out heating water in the weather having the sun, realizes the transfer of energy.The water heater that existing solar energy and heat pump combine mostly for commercial water heater, and requires as circulating heat pump to heat pump, inapplicable in pot-type boiler.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
For this reason, one object of the present invention is to propose a kind of water heater that effectively can utilize solar energy.
Another object of the present invention is the control method proposing a kind of above-mentioned water heater.
The water heater of embodiment according to a first aspect of the present invention, comprising: water tank, and described water tank is provided with hot water outlet, cooling water inlet, circulating water outlet and circulating water intake; For heating the coil pipe of the water in described water tank; Heat pump main frame, described heat pump main frame is connected with described coil pipe; Heat exchange module, described heat exchange module is connected to form the first circulation loop between described water tank and described heat exchange module with described circulating water outlet and described circulating water intake; Solar energy heating plate module, described solar energy heating plate module is connected to form the second circulation loop between described solar energy heating plate module and described heat exchange module with described heat exchange module, the heat transferring medium heat exchange in described heat exchange module in the water in described first circulation loop and described second circulation loop; For detecting the first checkout gear of the water temperature in described water tank; For detecting the second detection device of the temperature of the heat transferring medium in described solar energy heating plate module; For detecting the 3rd checkout gear of outdoor environment temperature; Controller, described controller is connected with described heat pump main frame, described heat exchange module and described solar energy heating plate module the running status to control described heat pump main frame, described heat exchange module and described solar energy heating plate module according to the testing result of described first checkout gear, described second detection device and described 3rd checkout gear.
According to the water heater of inventive embodiments, by being provided with heat pump main frame, heat exchange module and solar energy heating plate module, controller can control the running status of heat pump main frame, heat exchange module and solar energy heating plate module to realize the object heated the water in water tank according to the testing result of the first checkout gear, second detection device and the 3rd checkout gear, thus not only can utilize solar energy fully, the supply of hot water can be ensured simultaneously, promote efficiency of energy utilization.
In addition, according to water heater of the present invention, also there is following additional technical feature:
In some embodiments of the invention, described heat exchange module comprises: heat exchanger, and described heat exchanger and described circulating water outlet are connected with described circulating water intake to limit described first circulation loop; First water pump, described first water pump is connected on described first circulation loop.Thus be convenient to the running status controlling heat exchange module.
Alternatively, described heat exchanger is double pipe heat exchanger or plate type heat exchanger.
Further, described solar energy heating plate module comprises: solar heat-collection plate, and described solar heat-collection plate is connected with described heat exchanger to limit described second circulation loop; Second water pump, described second water pump is connected on described second circulation loop.Thus be convenient to the running status controlling solar energy heating plate module.
In some embodiments of the invention, described coil pipe comprises: side panel pipe, and described side panel pipe ring is around on the lateral wall of described water tank; Bottom coil, described bottom coil is located in the exterior bottom wall of described water tank.Thus the heating effect to the water in water tank can be ensured.
In other embodiments of the present invention, described coil pipe is located in described water tank.
According to some embodiments of the present invention, described water heater also comprises shell, and described heat pump main frame and described water tank are located in described shell.
Alternatively, described heat pump main frame is located at the top of described water tank.
Particularly, described first checkout gear, described second detection device and described 3rd checkout gear are respectively temperature sensor.
The control method of the water heater of embodiment according to a second aspect of the present invention, described water heater is the water heater of embodiment according to a first aspect of the present invention, described control method comprises the steps: S1: the very first time point of control the 3rd checkout gear in one day detects outdoor environment temperature with between the second time point, after described second time point is positioned at point of the described very first time, first checkout gear detects the water temperature in water tank simultaneously, second detection device detects the temperature of the heat transferring medium in solar energy heating plate module, and the difference △ T between the temperature of the heat transferring medium detected and water temperature and the first temperature value △ T1 and the second temperature value △ T2 is compared, S2: before described second time point, if the water temperature in described water tank lower than design temperature Ts and △ T >=△ T1, controls solar energy heating plate module and heat exchange module runs to heat the water in water tank, S3: after described second time point, if the water temperature in described water tank is lower than design temperature Ts, the mean value M obtaining described outdoor environment temperature is averaged to the outdoor environment temperature detected, and described mean value M and first environment set temperature value Ta1 and second environment set temperature value Ta2 is compared, S4: as M < Ta1, controller controls described heat pump main frame and runs, if now △ T >=△ T1, then controller controls described solar energy heating plate module and described heat exchange module simultaneously and runs to heat the water in described water tank until described first checkout gear detects that the water temperature in described water tank reaches design temperature Ts, as Ta1≤M < Ta2, if △ T >=△ T1 before the 3rd time point, controller controls described solar energy heating plate module and described heat exchange module runs to heat the water in water tank, if described first checkout gear detects that water temperature in described water tank is lower than design temperature Ts and △ T >=△ T1 after described 3rd time point, then controller controls the operation of described heat pump main frame, described solar energy heating plate module and described heat exchange module to heat the water in described water tank, until the water temperature in described water tank reaches design temperature Ts, as M >=Ta2, if △ T >=△ T1 before the 4th time point, controller controls described solar energy heating plate module and described heat exchange module runs to heat the water in water tank, if described first checkout gear detects that water temperature in described water tank is lower than design temperature Ts and △ T >=△ T1 after described 4th time point, controller controls described heat pump main frame, described solar energy heating plate module and described heat exchange module run to heat the water in described water tank, until the water temperature in described water tank reaches design temperature Ts, after described 4th time point is positioned at described 3rd time point.
According to the control method of the water heater of the embodiment of the present invention, by adopting above-mentioned rate-determining steps, thus not only can ensure to utilize solar energy fully, the supply of hot water can be ensured simultaneously, can efficiency of energy utilization be promoted.
In addition, according to the control method of water heater of the present invention, also there is following additional technical feature:
Alternatively, the scope of described first environment set temperature value Ta1 is 13 ~ 23 DEG C, and the scope of described second environment set temperature value Ta2 is 25 ~ 35 DEG C.
Alternatively, the scope of described first temperature value △ T1 is 10 ~ 15 DEG C, and the scope of described second temperature value △ T2 is 3 ~ 8 DEG C.
Alternatively, the time interval detecting outdoor environment temperature in described step S1 between described very first time point and described second time point is 5 ~ 60 minutes.
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 water heater according to an embodiment of the invention;
Fig. 2 is the schematic diagram of water heater in accordance with another embodiment of the present invention;
Fig. 3 is the flow chart of the control method of water heater according to the embodiment of the present invention.
Reference numeral:
Water heater 1000, water tank 10, hot water outlet 101, cooling water inlet 102,
Circulating water outlet 103, circulating water intake 104, coil pipe 20, side panel pipe 201,
Bottom coil 202, heat pump main frame 30, heat exchange module 40, heat exchanger 401,
First interface a, the second interface b, the 3rd interface c, the 4th interface d, the first water pump 402,
First circulation loop 50, solar energy heating plate module 60, solar heat-collection plate 601,
Second water pump 602, second circulation loop 70, first checkout gear 80,
Second detection device 90, the 3rd checkout gear 100, shell 120
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 will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " 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.
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.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
A kind of water heater 1000 of embodiment is according to a first aspect of the present invention described below with reference to Fig. 1-Fig. 3.
According to the water heater 1000 of the embodiment of the present invention, as depicted in figs. 1 and 2, comprise: water tank 10, coil pipe 20, heat pump main frame 30, heat exchange module 40, solar energy heating plate module 60, first checkout gear 80, second detection device 90, 3rd checkout gear 100 and controller, wherein, water tank 10 is provided with the hot water outlet 101 for outside hot-water supply, for injecting the cooling water inlet 102 of cold water in water tank 10, circulating water outlet 103 and circulating water intake 104, in the example of fig. 1 and 2, hot water outlet 101, cooling water inlet 102, circulating water intake 104 and circulating water outlet 103 are located on the sidewall of the same side of water tank 10, and hot water outlet 101, circulating water intake 104, circulating water outlet 103 and cooling water inlet 102 are located on water tank 10 on direction from top to bottom with being arranged in order.
Heat pump main frame 30 is static heated type heat pump for fluorine circulates, and heat pump main frame 30 comprises the components and parts such as heat pump compressor, evaporimeter, blower fan, condenser, what deserves to be explained is, the operation principle of heat pump main frame 30 etc., known by those skilled in the art, are just not described in detail here.Coil pipe 20 is connected with heat pump main frame 30, and the high temperature heat exchange agent that heat pump main frame 30 is discharged carries out heat exchange by coil pipe 20 and the water in water tank 10 thus water in heating water tank 10.In the example of fig. 1 and 2, the bottom coil 202 that coil pipe 20 comprises the side panel pipe 201 on the lateral wall being looped around water tank 10 and is located in the exterior bottom wall of water tank 10, thus the heating effect to the water in water tank 10 can be improved.Certainly the present invention is not limited thereto, coil pipe 20 also can be located in water tank 10.
Heat exchange module 40 is connected between water tank 10 and heat exchange module 40, form the first circulation loop 50 with circulating water outlet 103 and circulating water intake 104, water in water tank 10 is entered in the first circulation loop 50 by circulating water outlet 103, and the water flowing through whole first circulation loop 50 flow back in water tank 10 from circulating water intake 104.Solar energy heating plate module 60 is connected between solar energy heating plate module 60 and heat exchange module 40, form the second circulation loop 70 with heat exchange module 40, heat transferring medium heat exchange in heat exchange module 40 in water in first circulation loop 50 and the second circulation loop 70, that is, heat transferring medium in solar energy heating plate module 60 carries out heat exchange through the second circulation loop 70 with the water in the water tank of the first circulation loop 50, thus the object that realization is heated the water in water tank 10.
Particularly, as depicted in figs. 1 and 2, heat exchange module 40 comprises first to fourth interface a-d, first interface a is communicated with circulating water intake 104, second interface b is communicated with between water tank 10 and heat exchange module 40, form the first circulation loop 50 with circulating water outlet 103, 3rd interface c and the 4th interface d is connected between solar energy heating plate module 60 and heat exchange module 40, form the second circulation loop 70 respectively with solar energy heating plate module 60, water in water tank 10 enters in the first circulation loop 50 from circulating water outlet 103, heat transferring medium in solar energy heating plate module 60 enters in the second circulation loop 70, thus make the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70 carry out heat exchange in heat exchange module 40, namely complete the transfer of heat in solar energy heating plate module 60 in the water in water tank 10, thus the heating completed the water in water tank 10.That is, solar energy heating plate module 60 and heat exchange module 40 run to convert solar energy to heat energy jointly.Wherein, be worth understanding, the operation principle of solar energy heating plate module 60 etc., known by those skilled in the art, are just not described in detail here.
First checkout gear 80 is for detecting the water temperature in water tank 10, and second detection device 90 is for detecting the temperature of the heat transferring medium in solar energy heating plate module 60.3rd checkout gear 100 is for detecting outdoor environment temperature.In the example of fig. 1 and 2, the first checkout gear 80 is located at for detecting the water temperature in water tank 10 in water tank 10, and second detection device 90 is located on the second circulation loop 70 for detecting the temperature of heat transferring medium.Particularly, the first checkout gear 80, second detection device 90 and the 3rd checkout gear 100 are respectively temperature sensor.Controller is connected with heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 running status to control heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 according to the testing result of the first checkout gear 80, second detection device 90 and the 3rd checkout gear 100.
In the following description, " heat pump " refers to high temperature heat exchange agent in heat pump main frame 30 and carries out heat exchange with a kind of mode of heating heated the water in water tank 10 by coil pipe 20 and the water in water tank 10, and " solar energy heating " refers to solar energy heating plate module 60 and heat exchange module 30 and run to make the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70 heat exchange thus a kind of mode of heating heated the water in water tank 10 in heat exchange module 40.
When water heater 1000 works, two time points of 3rd checkout gear 100 in one day and detect outdoor environment temperature between very first time point with the second time point after very first time point, first checkout gear 80 detects the water temperature in water tank 10, second detection device 90 detects the temperature of the heat transferring medium in solar energy heating plate module 60, and the difference △ T detected between the temperature of heat transferring medium and water temperature and the first temperature value △ T1 and the second temperature value △ T2 is compared, wherein, the first temperature value △ T1 is greater than the second temperature value △ T2.In examples more of the present invention, the very first time scope of point is 6:00 ~ 9:00 in morning, the scope of the second time point is 11:00 ~ 12:00 in morning, and the time interval detecting outdoor environment temperature between very first time point and the second time point is 5 ~ 60 minutes, the span of the first temperature value △ T1 is 10 ~ 15 DEG C, and the span of the second temperature value △ T2 is 3 ~ 8 DEG C.
Before the second time point, if the water temperature in water tank 10 lower than design temperature Ts and △ T >=△ T1, controls solar energy heating plate module 60 and heat exchange module 40 runs to heat the water in water tank 10, when the water temperature in water tank 10 lower than design temperature Ts and △ T < △ T2 time, then the water in water tank 10 is not heated.
After the second time point, if the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts, then after the second time point, the outdoor environment temperature detected is averaged, to obtain the mean value M of outdoor environment temperature, thus can judge being adopt separately solar energy heating mode or heat the water in water tank 10 together with heat pump mode after the second time point, now can be divided into three kinds of situations according to this mean value M:
The first situation is: M < Ta1, this Time Controller controls heat pump main frame 30 and runs to heat the water in water tank 10, if now △ T >=△ T1, then controller control heat exchange module 40 and solar energy heating plate module 60 are run simultaneously, that is adopt heat pump mode and the two kinds of mode of heating actings in conjunction of solar energy heating mode to heat the water in water tank 10, in the process that the water in water tank 10 is heated, first checkout gear 80 detects the water temperature in water tank 10 always, when the water temperature that the first checkout gear 80 detects in water tank 10 reaches design temperature Ts, controller controls heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 out of service with stop the water in water tank 10 is heated.
The second situation is: Ta1≤M < Ta2, if △ T >=△ T1 before the 3rd time point after being positioned at the second time point, adopt solar energy heating mode to heat the water in water tank 10 always, in the process that the water in water tank 10 is heated, first checkout gear 80 detects the water temperature in water tank 10 always, the water temperature that if the first checkout gear 80 detects in water tank 10 after arrival the 3rd time point also do not reach design temperature Ts and △ T >=△ T1 time, then controller control heat pump main frame 30 brings into operation, with by adopting heat pump mode and the coefficient mode of solar energy heating mode to heat the water in water tank 10, until when the water temperature that the first checkout gear 80 detects in water tank 10 reaches design temperature Ts, controller controls heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 out of service with stop the water in water tank 10 is heated, wherein the 3rd time point specifically can set according to the volume size of heat pump main frame 30 and water tank 10, to ensure having hot water to use after the time point of setting, in examples more of the present invention, the time point of setting is 19:00 in afternoon, the scope of the 3rd time point can be set between 14:00 ~ 16:00.
The third situation: M >=Ta2, if △ T >=△ T1 before the 4th time point after being positioned at the second time point, adopt solar energy heating mode to heat the water in water tank 10 always, in the process that the water in water tank 10 is heated, first checkout gear 80 detects the water temperature in water tank 10 always, if when the water temperature that the first checkout gear 80 detects in water tank 10 after arrival the 4th time point does not also reach design temperature Ts and △ T >=△ T1, then controller control heat pump main frame 30 brings into operation, with by adopting heat pump mode and the coefficient mode of solar energy heating mode to heat the water in water tank 10, until when the water temperature that the first checkout gear 80 detects in water tank 10 reaches design temperature Ts, controller controls heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 out of service with stop the water in water tank 10 is heated, after wherein the 4th time point is positioned at the 3rd time point, and the 4th time point specifically can set according to the volume size of heat pump main frame 30 and water tank 10, to ensure having hot water to use after the time point of setting, in examples more of the present invention, the scope of the 4th time point can be set between 16:00 ~ 18:00.
According to the water heater 1000 of inventive embodiments, by being provided with heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60, controller can control the running status of heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 to realize the object heated the water in water tank 10 according to the testing result of the first checkout gear 80, second detection device 90 and the 3rd checkout gear 100, thus not only can utilize solar energy fully, the supply of hot water can be ensured simultaneously, promote efficiency of energy utilization, and this water heater 1000 can be pot-type boiler.
According to some embodiments of the present invention, as depicted in figs. 1 and 2, heat exchange module 40 comprises: heat exchanger 401 and the first water pump 402, wherein, heat exchanger 401 and circulating water outlet 103 are connected with circulating water intake 104 to limit the first circulation loop 50, first water pump 402 is connected on the first circulation loop 50, and whether the opening and closing now by controlling the first water pump 402 flow with the water controlled in water tank 10 in the first circulation loop 50.Alternatively, heat exchanger 401 can be double pipe heat exchanger or plate type heat exchanger.Thus make heat exchange module 40 structure simple, and be convenient to the running status controlling heat exchange module 40.
Further, solar energy heating plate module 60 comprises: solar heat-collection plate 601 and the second water pump 602, wherein, solar heat-collection plate 601 is connected with heat exchanger 401 to limit the second circulation loop 70, second water pump 602 is connected on the second circulation loop 70, and whether the opening and closing now by controlling the second water pump 602 flow with the heat transferring medium controlled in solar heat-collection plate 601 in the second circulation loop 70.That is, when control first water pump 402 and the second water pump 602 are opened, water in water tank 10 is at the first circulation loop 50 internal circulation flow, heat transferring medium in solar heat-collection plate 601 can carry out heat exchange at the second circulation loop 70 internal circulation flow to make the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70 in heat exchange module 40, thus realizes heating the water in water tank 10.When control first water pump 402 and the second water pump 602 are closed, namely stop the heat transfer process in heat exchange module 40, thus stop heating the water in water tank 10.
As shown in Figure 2, in some embodiments of the invention, water heater 1000 also comprises shell 120, heat pump main frame 30 and water tank 10 are located in shell 120, thus make heat pump main frame 30 and water tank 10 be designed to monoblock type, particularly, heat pump main frame 30 can be located on the top of water tank 10, bottom or sidepiece.Certainly the present invention is not limited thereto, as shown in Figure 1, in other embodiments of the present invention, heat pump main frame 30 and water tank 10 are split type.
Describe the control method of a kind of water heater of embodiment according to a second aspect of the present invention below with reference to Fig. 1-Fig. 3, wherein water heater is the water heater 1000 of embodiment according to a first aspect of the present invention.
According to the control method of the water heater of the embodiment of the present invention, as shown in Figure 3, comprise the steps:
S1: the very first time point of control the 3rd checkout gear 100 in one day detects outdoor environment temperature with between the second time point, after second time point is positioned at very first time point, first checkout gear 80 detects the water temperature in water tank 10 simultaneously, second detection device 90 detects the temperature of the heat transferring medium in solar energy heating plate module 60, and the temperature-water temperature of the difference △ T=heat transferring medium between the temperature of the heat transferring medium detected and water temperature and the first temperature value △ T1 and the second temperature value △ T2 is compared.Particularly, the time interval detecting outdoor environment temperature between very first time point and the second time point is 5 ~ 60 minutes.In examples more of the present invention, the scope of the first temperature value △ T1 is 10 ~ 15 DEG C, and the scope of described second temperature value △ T2 is 3 ~ 8 DEG C
S2: before the second time point, if the water temperature in water tank 10 is lower than design temperature Ts and T >=△ T1, then controller control solar energy heating plate module 60 and heat exchange module 40 run to heat the water in water tank 10, if the water temperature in water tank 10 is lower than design temperature Ts and T < △ T2, then stop heating the water in water tank 10, wherein, if the water temperature before the second time point in water tank 10 reaches design temperature Ts, stop heating the water in water tank 10.
S3: after the second time point, if when the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts, then the mean value M obtaining outdoor environment temperature is averaged to the outdoor environment temperature detected, and mean value M and first environment set temperature value Ta1 and second environment set temperature value Ta2 are compared judge being adopt separately solar energy heating mode or heat the water in water tank 10 together with heat pump mode after the second time point.
S3: as M < Ta1, controller controls heat pump main frame 30 and runs, if now △ T >=△ T1, then controller controls solar energy heating plate module 60 and heat exchange module 40 runs to heat the water in water tank 10 until the first checkout gear 80 detects that the water temperature in water tank 10 reaches design temperature Ts simultaneously, that is, now adopt solar energy heating mode and these two kinds of mode of heatings of heat pump mode to act on to heat the water in water tank 10 simultaneously.
As Ta1≤M < Ta2, if △ T >=△ T1 before the 3rd time point, controller controls solar energy heating plate module 60 and heat exchange module 40 runs to heat the water in water tank 10, if the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts after the 3rd time point, controller controls heat pump main frame 30 and runs, if now remain △ T >=△ T1, then solar energy heating plate module 60 and heat exchange module 40 are still in running status to heat the water in water tank 10, until the water temperature in water tank 10 reaches design temperature Ts, that is, before the 3rd time point, if △ T >=△ is T1, this kind of mode of heating of solar energy heating is only adopted to heat the water in water tank 10, if the water temperature in the rear water box 10 of the 3rd time point does not reach design temperature Ts and △ T >=△ T1, after the 3rd time point, then adopt solar energy heating mode and these two kinds of mode of heatings of heat pump mode to heat the water in water tank 10 until the water temperature in water tank 10 reaches design temperature Ts simultaneously.
As M >=Ta2, if △ T >=△ T1 before the 4th time point, controller controls solar energy heating plate module 60 and heat exchange module 40 runs to heat the water in water tank 10, if the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts after the 4th time point, then controller control heat pump main frame 30 runs, if now remain △ T >=△ T1, then solar energy heating plate module 60 and heat exchange module 40 are still in running status to heat the water in water tank 10, until the water temperature in water tank 10 reaches design temperature Ts, after 4th time point is positioned at described 3rd time point.That is, before the 4th time point, if △ T >=△ is T1, this kind of mode of heating of solar energy heating is only adopted to heat the water in water tank 10, after the 4th time point, if the water temperature in water tank 10 does not reach design temperature Ts and △ T >=△ T1, then adopt solar energy heating mode and these two kinds of mode of heatings of heat pump mode to heat the water in water tank 10, until the water temperature in water tank 10 reaches design temperature Ts simultaneously.
According to the control method of the water heater of the embodiment of the present invention, by adopting above-mentioned rate-determining steps, thus not only can ensure to utilize solar energy fully, the supply of hot water can be ensured simultaneously, can efficiency of energy utilization be promoted.
The control method of water heater 1000 is according to the preferred embodiment of the invention described in detail below with reference to Fig. 1-Fig. 3.
First, between very first time point and the second time point, outdoor environment temperature is detected every predetermined time interval the 3rd checkout gear 100, the very first time span of point is 6:00 ~ 9:00 in morning, the span of the second time point is 11:00 ~ 12:00 in morning, and predetermined time interval is 5 ~ 60 minutes.First checkout gear 80 detects the water temperature in water tank 10 simultaneously, second detection device 90 detects the temperature of heat transferring medium, and the water temperature in the water tank 10 that detects of the temperature of the heat transferring medium detected by second detection device 90 and the first checkout gear 80 compares to obtain difference △ T, and difference △ T and the first temperature value △ T1 and the second temperature value △ T2 is compared, now, before the second time point, when the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts, during with time difference value △ T >=△ T1, control the first water pump 402 and the second water pump 602 runs to make the water in the first circulation loop 50 and the heat transferring medium heat exchange in heat exchange module 40 in the second circulation loop 70, thus the water in water tank 10 is heated.As difference △ T < △ T2, then stop heating the water in water tank 10.
Then, after reaching the second time point, if when the first checkout gear 80 detects that water temperature in water tank 10 is lower than design temperature Ts, then be averaging to obtain mean value M to the outdoor environment temperature collected, and mean value M and first environment set temperature value Ta1 and second environment set temperature value Ta2 compared select being adopt separately solar energy heating mode or heat the water in water tank 10 together with heat pump mode after the second time point.
As M < Ta1, if difference △ T >=△ is T1, then control the first water pump 402 and the second water pump 602 runs to make the water in the first circulation loop 50 and the heat transferring medium heat exchange in heat exchange module 40 in the second circulation loop 70, the heat exchange agent simultaneously controlled in heat pump main frame 30 is carried out heat exchange by coil pipe 20 and the water in water tank 10, thus is heated the water in water tank 10 until the water temperature in water tank 10 reaches design temperature Ts.If difference △ T < △ is T2, then close the first water pump 402 and the second water pump 602, now only by making the heat exchange agent in heat pump main frame 30 carry out heat exchange by coil pipe 20 and the water in water tank 10, to heat the water in water tank 10, until the water temperature in water tank 10 reaches design temperature Ts.
As Ta1≤M < Ta2, if difference △ T >=△ T1 before the 3rd time point, then control the first water pump 402 and the second water pump 602 and run to make the heat exchange thus the water in water tank 10 is heated in heat exchange module 40 of the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70, if difference △ T < △ T2 before the 3rd time point, then control the first water pump 402 and the second water pump 602 out of service with stop the water in water tank 10 is heated.After the 3rd time point, if the first checkout gear 80 detects water temperature in water tank 10 lower than design temperature Ts, then control heat pump main frame 30 and run that the water in water tank 10 is heated, if now remain difference △ T >=△ T1, then the first water pump 402 and the second water pump 602 continue to run to make the heat exchange thus heat the water in water tank 10 in heat exchange module 40 of the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70, namely heat pump and solar energy heating two kinds of mode of heatings are adopted to heat the water in water tank 10, if after the 3rd time point, water temperature in water tank 10 is lower than design temperature Ts but difference △ T < △ T2, then a control heat pump main frame 30 runs to heat the water in water tank 10.
As M >=Ta2, if difference △ T >=△ T1 before the 4th time point, then control the first water pump 402 and the second water pump 602 and run to make the heat exchange thus the water in water tank 10 is heated in heat exchange module 40 of the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70, if difference △ T < △ T2 before the 4th time point, then control the first water pump 402 and the second water pump 602 out of service with stop the water in water tank 10 is heated.After the 4th time point, if the first checkout gear 80 detects water temperature in water tank 10 lower than design temperature Ts, then control heat pump main frame 30 and run that the water in water tank 10 is heated, if now remain difference △ T >=△ T1, then the first water pump 402 and the second water pump 602 continue to run to make the heat exchange thus heat the water in water tank 10 in heat exchange module 40 of the heat transferring medium in the water in the first circulation loop 50 and the second circulation loop 70, namely heat pump and solar energy heating two kinds of mode of heatings are adopted to heat the water in water tank 10, if after the 4th time point, water temperature in water tank 10 is lower than design temperature Ts but difference △ T < △ T2, then a control heat pump main frame 30 runs to heat the water in water tank 10.Wherein, after the 4th time point is positioned at the 3rd time point.
According to the water heater 1000 of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
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 (13)
1. a water heater, is characterized in that, comprising:
Water tank, described water tank is provided with hot water outlet, cooling water inlet, circulating water outlet and circulating water intake;
For heating the coil pipe of the water in described water tank;
Heat pump main frame, described heat pump main frame is connected with described coil pipe;
Heat exchange module, described heat exchange module is connected to form the first circulation loop between described water tank and described heat exchange module with described circulating water outlet and described circulating water intake;
Solar energy heating plate module, described solar energy heating plate module is connected to form the second circulation loop between described solar energy heating plate module and described heat exchange module with described heat exchange module, the heat transferring medium heat exchange in described heat exchange module in the water in described first circulation loop and described second circulation loop;
For detecting the first checkout gear of the water temperature in described water tank;
For detecting the second detection device of the temperature of the heat transferring medium in described solar energy heating plate module;
For detecting the 3rd checkout gear of outdoor environment temperature;
Controller, described controller is connected with described heat pump main frame, described heat exchange module and described solar energy heating plate module the running status to control described heat pump main frame, described heat exchange module and described solar energy heating plate module according to the testing result of described first checkout gear, described second detection device and described 3rd checkout gear.
2. water heater according to claim 1, is characterized in that, described heat exchange module comprises:
Heat exchanger, described heat exchanger and described circulating water outlet are connected with described circulating water intake to limit described first circulation loop;
First water pump, described first water pump is connected on described first circulation loop.
3. water heater according to claim 2, is characterized in that, described heat exchanger is double pipe heat exchanger or plate type heat exchanger.
4. water heater according to claim 2, is characterized in that, described solar energy heating plate module comprises:
Solar heat-collection plate, described solar heat-collection plate is connected with described heat exchanger to limit described second circulation loop;
Second water pump, described second water pump is connected on described second circulation loop.
5. water heater according to claim 1, is characterized in that, described coil pipe comprises:
Side panel pipe, described side panel pipe ring is around on the lateral wall of described water tank;
Bottom coil, described bottom coil is located in the exterior bottom wall of described water tank.
6. water heater according to claim 1, is characterized in that, described coil pipe is located in described water tank.
7. water heater according to claim 1, is characterized in that, also comprises shell, and described heat pump main frame and described water tank are located in described shell.
8. water heater according to claim 7, is characterized in that, described heat pump main frame is located at the top of described water tank.
9. water heater according to claim 1, is characterized in that, described first checkout gear, described second detection device and described 3rd checkout gear are respectively temperature sensor.
10. a control method for water heater, described water heater is water heater according to claim 1, it is characterized in that, described control method comprises the steps:
S1: the very first time point of control the 3rd checkout gear in one day detects outdoor environment temperature with between the second time point, after described second time point is positioned at point of the described very first time, first checkout gear detects the water temperature in water tank simultaneously, second detection device detects the temperature of the heat transferring medium in solar energy heating plate module, and is compared by the difference △ T between the temperature of the heat transferring medium detected and water temperature and the first temperature value △ T1 and the second temperature value △ T2;
S2: before described second time point, if the water temperature in described water tank lower than design temperature Ts and △ T >=△ T1, controls solar energy heating plate module and heat exchange module runs to heat the water in water tank;
S3: after described second time point, if the water temperature in described water tank is lower than design temperature Ts, the mean value M obtaining described outdoor environment temperature is averaged to the outdoor environment temperature detected, and described mean value M and first environment set temperature value Ta1 and second environment set temperature value Ta2 is compared;
S4: as M < Ta1, controller controls described heat pump main frame and runs, if now △ T >=△ T1, then controller controls described solar energy heating plate module and described heat exchange module simultaneously and runs to heat the water in described water tank until described first checkout gear detects that the water temperature in described water tank reaches design temperature Ts;
As Ta1≤M < Ta2, if △ T >=△ T1 before the 3rd time point, controller controls described solar energy heating plate module and described heat exchange module runs to heat the water in water tank, if described first checkout gear detects that water temperature in described water tank is lower than design temperature Ts and △ T >=△ T1 after described 3rd time point, then controller controls the operation of described heat pump main frame, described solar energy heating plate module and described heat exchange module to heat the water in described water tank, until the water temperature in described water tank reaches design temperature Ts;
As M >=Ta2, if △ T >=△ T1 before the 4th time point, controller controls described solar energy heating plate module and described heat exchange module runs to heat the water in water tank, if described first checkout gear detects that water temperature in described water tank is lower than design temperature Ts and △ T >=△ T1 after described 4th time point, controller controls described heat pump main frame, described solar energy heating plate module and described heat exchange module run to heat the water in described water tank, until the water temperature in described water tank reaches design temperature Ts, after described 4th time point is positioned at described 3rd time point.
The control method of 11. water heaters according to claim 10, is characterized in that, the scope of described first environment set temperature value Ta1 is 13 ~ 23 DEG C, and the scope of described second environment set temperature value Ta2 is 25 ~ 35 DEG C.
The control method of 12. water heaters according to claim 10, is characterized in that, the scope of described first temperature value △ T1 is 10 ~ 15 DEG C, and the scope of described second temperature value △ T2 is 3 ~ 8 DEG C.
The control method of 13. water heaters according to claim 10, is characterized in that, the time interval detecting outdoor environment temperature in described step S1 between described very first time point and described second time point is 5 ~ 60 minutes.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106288403A (en) * | 2015-05-12 | 2017-01-04 | 青岛海尔新能源电器有限公司 | A kind of water heater control method and water heater |
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| JP4372096B2 (en) * | 2005-12-19 | 2009-11-25 | シャープ株式会社 | Heat pump water heater and control method of the heat pump water heater |
| CN102338477A (en) * | 2011-08-25 | 2012-02-01 | 浙江正理生能科技有限公司 | Solar energy and air source heat pump combined water heater |
| CN202692460U (en) * | 2012-07-04 | 2013-01-23 | 广州西奥多冷热设备有限公司 | Split type space energy water heater |
| CN203375700U (en) * | 2013-06-20 | 2014-01-01 | 广东美的暖通设备有限公司 | Water heater |
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| CN106288403A (en) * | 2015-05-12 | 2017-01-04 | 青岛海尔新能源电器有限公司 | A kind of water heater control method and water heater |
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