CN104236089B - Water heater and its control method - Google Patents

Water heater and its control method Download PDF

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Publication number
CN104236089B
CN104236089B CN201310248621.7A CN201310248621A CN104236089B CN 104236089 B CN104236089 B CN 104236089B CN 201310248621 A CN201310248621 A CN 201310248621A CN 104236089 B CN104236089 B CN 104236089B
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China
Prior art keywords
water
temperature
water tank
heat
time point
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CN201310248621.7A
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CN104236089A (en
Inventor
饶荣水
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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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Abstract

The invention discloses a kind of water heater and its control method.Water heater includes:Water tank, coil pipe, heat pump main frame, heat exchange module, solar energy heating plate module, the first detection means for detecting the water temperature in water tank, the second detection device of temperature for detecting the heat transferring medium in solar energy heating plate module, the 3rd detection means for detecting outdoor environment temperature and controller, form first circulation loop between water tank and heat exchange module.Second circulation loop is formed between solar energy heating plate module and heat exchange module, the water in first circulation loop exchanges heat with the heat transferring medium in second circulation loop in heat exchange module.Controller controls the running status of heat pump main frame, heat exchange module and solar energy heating plate module according to the testing result of the first detection means, second detection device and the 3rd detection means.Water heater of the invention, can fully utilize solar energy, while the supply of hot water can be ensured, lift efficiency of energy utilization.

Description

Water heater and its control method
Technical field
The present invention relates to household appliance technical field, more particularly, to a kind of water heater and its control method.
Background technology
Teat pump boiler uses inverse Carnot cycle principle, and heat is absorbed from air to heat water, realizes the transfer of energy. Solar water heater consumption electric power or can not consume little electric power and heat water in the weather for have the sun, realize energy Transfer.The water heater that existing solar energy and heat pump are combined is circulation to heat pump requirement mostly for commercial water heater Formula heat pump, does not apply in pot-type boiler.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.
Therefore, it is an object of the present invention to propose it is a kind of can effectively using solar energy water heater.
It is another object of the present invention to propose a kind of control method of above-mentioned water heater.
The water heater of embodiment according to a first aspect of the present invention, including:Water tank, the water tank is provided with hot water outlet, cold Water inlet, circulating water outlet and circulating water intake;Coil pipe for heating the water in the water tank;Heat pump main frame, the heat pump Main frame is connected with the coil pipe;Heat exchange module, the heat exchange module is connected with the circulating water outlet and the circulating water intake To form first circulation loop between the water tank and the heat exchange module;Solar energy heating plate module, the solar energy collection Hot plate module to be connected with the heat exchange module and form second between the solar energy heating plate module and the heat exchange module Heat transferring medium in circulation loop, water in the first circulation loop and the second circulation loop is in the heat exchange module Heat exchange;The first detection means for detecting the water temperature in the water tank;For detecting in the solar energy heating plate module The second detection device of the temperature of heat transferring medium;The 3rd detection means for detecting outdoor environment temperature;Controller, the control Device processed is connected with according to the described first detection dress with the heat pump main frame, the heat exchange module and the solar energy heating plate module Put, the testing result of the second detection device and the 3rd detection means controls the heat pump main frame, the heat exchange module With the running status of the solar energy heating plate module.
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 heat pump main frame, change according to the testing result of the first detection means, second detection device and the 3rd detection means Purpose of the running status of thermal modules and solar energy heating plate module to realize heating the water in water tank, so as to not only may be used Solar energy is fully utilized, while the supply of hot water can be ensured, efficiency of energy utilization is lifted.
In addition, water heater of the invention also has following additional technical feature:
In some embodiments of the invention, the heat exchange module includes:Heat exchanger, the heat exchanger and the recirculated water Outlet is connected to limit the first circulation loop with the circulating water intake;First water pump, first water pump is connected on On the first circulation loop.Consequently facilitating the running status of control heat exchange module.
Alternatively, the heat exchanger is double pipe heat exchanger or plate type heat exchanger.
Further, the solar energy heating plate module includes:Solar heat-collection plate, the solar heat-collection plate with it is described Heat exchanger is connected to limit the second circulation loop;Second water pump, second water pump is connected on the second circulation ring Lu Shang.Consequently facilitating the running status of control solar energy heating plate module.
In some embodiments of the invention, the coil pipe includes:Side panel pipe, the side panel pipe ring is wound on the water tank On lateral wall;Bottom coil, the bottom coil is located in the exterior bottom wall of the water tank.So as to the heating to the water in water tank can be ensured Effect.
In other embodiments of the invention, the coil pipe is located in the water tank.
Some embodiments of the invention, the water heater also includes shell, and the heat pump main frame and the water tank set In the shell.
Alternatively, the heat pump main frame is located at the top of the water tank.
Specifically, first detection means, the second detection device and the 3rd detection means are respectively temperature Sensor.
The control method of the water heater of embodiment according to a second aspect of the present invention, the water heater is according to the present invention first The water heater of aspect embodiment, the control method comprises the following steps:S1:Control first of the 3rd detection means in one day Outdoor environment temperature is detected between time point and the second time point, second time point is located at after the first time point, Water temperature in the water tank of first detection means detection simultaneously, the heat transferring medium in second detection device detection solar energy heating plate module Temperature, and difference △ T and the first temperature value △ T1 between the temperature and water temperature of the heat transferring medium that will be detected and the second temperature Angle value △ T2 are compared;S2:Before second time point, if the water temperature in the water tank is less than design temperature Ts and △ T >=△ T1 then control solar energy heating plate module and heat exchange module operation to be heated with to the water in water tank;S3:Described After two time points, the outdoor environment temperature to detecting if the water temperature in the water tank is less than design temperature Ts carries out asking flat Average to obtain the average value M of the outdoor environment temperature, and by the average value M and first environment set temperature value Ta1 and Second environment set temperature value Ta2 is compared;S4:As M < Ta1, controller controls the heat pump main frame operation, if now △ T >=△ T1, then controller control simultaneously the solar energy heating plate module and the heat exchange module operation with to the water tank Interior water is heated until the water temperature that first detection means is detected in the water tank reaches design temperature Ts;Work as Ta1 During≤M < Ta2, controller controls the solar energy heating plate module and described if △ T >=△ T1 before the 3rd time point Heat exchange module operation is heated with to the water in water tank, if the first detection means detection after the 3rd time point Design temperature Ts and △ T >=△ T1 are less than to the water temperature in the water tank, then controller controls the heat pump main frame, the sun Energy thermal-arrest plate module and heat exchange module operation are heated with to the water in the water tank, the water temperature in the water tank Reach design temperature Ts;As M >=Ta2, controller controls the solar energy collection if △ T >=△ T1 before the 4th time point Hot plate module and heat exchange module operation are heated with to the water in water tank, if described the after the 4th time point The water temperature that one detection means is detected in the water tank is less than design temperature Ts and △ T >=△ T1, and controller controls the heat pump The operation of main frame, the solar energy heating plate module and the heat exchange module is heated with to the water in the water tank, Zhi Daosuo State the water temperature in water tank and reach design temperature Ts, the 4th time point was located at after the 3rd time point.
The control method of water heater according to embodiments of the present invention, by using above-mentioned rate-determining steps, so as to can not only protect Card fully utilizes solar energy, while the supply of hot water can be ensured, can lift efficiency of energy utilization.
In addition, the control method of water heater of the invention also has following additional technical feature:
Alternatively, the scope of the first environment set temperature value Ta1 is 13~23 DEG C, the second environment design temperature The scope of value Ta2 is 25~35 DEG C.
Alternatively, the scope of the first temperature value △ T1 is 10~15 DEG C, and the scope of the second temperature value △ T2 is 3 ~8 DEG C.
Alternatively, outdoor environment temperature is detected in the step S1 between the first time point and second time point The time interval of degree is 5~60 minutes.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined Substantially and be readily appreciated that, wherein:
Fig. 1 is the schematic diagram of the water heater according to one embodiment of the invention;
Fig. 2 is the schematic diagram of the water heater according to another embodiment of the present invention;
Fig. 3 is the flow chart of the control method of the water heater according to the embodiment of the present invention.
Reference:
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, 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, the first detection means 80,
Second detection device 90, the 3rd detection means 100, shell 120
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " are Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right Limitation of the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can Being to mechanically connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
A kind of water heater 1000 of embodiment according to a first aspect of the present invention is described below with reference to Fig. 1-Fig. 3.
Water heater 1000 according to embodiments of the present invention, as depicted in figs. 1 and 2, including:Water tank 10, coil pipe 20, heat pump master Machine 30, heat exchange module 40, solar energy heating plate module 60, the first detection means 80, second detection device 90, the 3rd detection means 100 and controller, wherein, water tank 10 is provided with the hot water outlet 101 for outside hot-water supply, for being injected in water tank 10 The cooling water inlet 102 of cold water, circulating water outlet 103 and circulating water intake 104, in the example of fig. 1 and 2, hot water outlet 101st, cooling water inlet 102, circulating water intake 104 and circulating water outlet 103 are located on the side wall 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 arranged in order ground on direction from top to bottom It is located on water tank 10.
Heat pump main frame 30 is that fluorine circulates static heated type heat pump, and heat pump main frame 30 include heat pump compressor, evaporator, The components such as blower fan, condenser, what deserves to be explained is, operation principle of heat pump main frame 30 etc. has been those skilled in the art institute Know, be just not described in detail here.Coil pipe 20 is connected with heat pump main frame 30, and the high temperature heat exchange agent of the discharge of heat pump main frame 30 passes through disk Pipe 20 is exchanged heat so as to heat the water in water tank 10 with the water in water tank 10.In the example of fig. 1 and 2, coil pipe 20 includes The side panel pipe 201 being looped around on the lateral wall of water tank 10 and the bottom coil 202 being located in the exterior bottom wall of water tank 10, so as to can improve To the heating effect of the water in water tank 10.Certainly the invention is not restricted to this, coil pipe 20 also may be provided in water tank 10.
Heat exchange module 40 be connected with circulating water outlet 103 and circulating water intake 104 with water tank 10 and heat exchange module 40 it Between form first circulation loop 50, the water in water tank 10 is entered in first circulation loop 50 by circulating water outlet 103, is flowed through whole The water of individual first circulation loop 50 is flow back into water tank 10 from circulating water intake 104.Solar energy heating plate module 60 and heat exchange mould Block 40 is connected to form second circulation loop 70, first circulation loop between solar energy heating plate module 60 and heat exchange module 40 Water in 50 exchanges heat with the heat transferring medium in second circulation loop 70 in heat exchange module 40, that is to say, that solar heat-collection plate Heat transferring medium in module 60 is exchanged heat by second circulation loop 70 with the water in the water tank by first circulation loop 50, So as to the purpose for realizing heating the water in water tank 10.
Specifically, as depicted in figs. 1 and 2, heat exchange module 40 includes first to fourth interface a-d, first interface a and circulation Water inlet 104 is connected, and second interface b is connected with circulating water outlet 103 and formed first between water tank 10 and heat exchange module 40 Circulation loop 50, the 3rd interface c and the 4th interface d are connected with solar energy heating template die with solar energy heating plate module 60 respectively Second circulation loop 70 is formed between block 60 and heat exchange module 40, the water in water tank 10 enters into first from circulating water outlet 103 In circulation loop 50, the heat transferring medium in solar energy heating plate module 60 is entered into second circulation loop 70, so that the Water in one circulation loop 50 is exchanged heat with the heat transferring medium in second circulation loop 70 in heat exchange module 40, that is, completing will Heat in solar energy heating plate module 60 is transferred in the water in water tank 10, so as to complete the heating to the water in water tank 10. That is, solar energy heating plate module 60 is operated together to convert solar energy into heat energy with heat exchange module 40.Wherein, it is worth Understand, operation principle of solar energy heating plate module 60 etc. has been well known to those skilled in the art, it is just unknown here Thin description.
First detection means 80 is used to detect the water temperature in water tank 10 that second detection device 90 to be used to detect solar energy heating The temperature of the heat transferring medium in plate module 60.3rd detection means 100 is used to detect outdoor environment temperature.In showing for Fig. 1 and Fig. 2 In example, the first detection means 80 is located at for the water temperature detected in water tank 10 in water tank 10, and second detection device 90 is located at second It is used to detect the temperature of heat transferring medium on circulation loop 70.Specifically, the first detection means 80, second detection device 90 and the 3rd Detection means 100 is respectively temperature sensor.Controller and heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 It is connected with according to the first detection means 80, the testing result of the detection means 100 of second detection device 90 and the 3rd control heat pump master The running status of machine 30, heat exchange module 40 and solar energy heating plate module 60.
In the following description, the high temperature heat exchange agent that " heat pump " is referred in heat pump main frame 30 passes through coil pipe 20 and water Water in case 10 is exchanged heat with a kind of mode of heating heated to the water in water tank 10, and " solar energy heating " is referred to too Positive energy thermal-arrest plate module 60 and heat exchange module 30 are operated such that in water and second circulation loop 70 in first circulation loop 50 Heat transferring medium in the heat exchange module 40 heat exchange so as to a kind of mode of heating heated to the water in water tank 10.
When water heater 1000 works, two time points of the 3rd detection means 100 in one day are first time point and position Outdoor environment temperature is detected between the second time point after first time point, in the detection water tank 10 of the first detection means 80 Water temperature, the temperature of the heat transferring medium in the detection solar energy heating of second detection device 90 plate module 60, and heat exchange Jie will be detected Difference △ T and the first temperature value △ T1 and second temperature value △ T2 between the temperature and water temperature of matter are compared, wherein, first Temperature value △ T1 are more than second temperature value △ T2.In some examples of the invention, the scope of first time point is morning 6:00 ~9:00, the scope at the second time point is morning 11:00~12:00, and detected between first time point and the second time point The time interval of outdoor environment temperature is 5~60 minutes, and the span of the first temperature value △ T1 is 10~15 DEG C, second temperature The span of value △ T2 is 3~8 DEG C.
Before the second time point, the sun is controlled if the water temperature in water tank 10 is less than design temperature Ts and △ T >=△ T1 Energy thermal-arrest plate module 60 and heat exchange module 40 run and are heated with to the water in water tank 10, are set when the water temperature in water tank 10 is less than When constant temperature degree Ts and △ T < △ T2, then the water in water tank 10 is not heated.
After the second time point, if the water temperature that the first detection means 80 is detected in water tank 10 is less than design temperature Ts, The outdoor environment temperature for detecting is averaged after the second time point then, to obtain the average of outdoor environment temperature Value M, thus can according to average value M judge be after the second time point individually using solar energy heating mode or with heat Pump mode of heating is heated to the water in water tank 10 together, can now be divided into three kinds of situations:
The first situation is:M < Ta1, now controller controls heat pump main frame 30 to run is carried out with to the water in water tank 10 Heating, if now △ T >=△ T1, controller control heat exchange module 40 and solar energy heating plate module 60 are run simultaneously, also It is to say to use two kinds of mode of heating collective effects of heat pump mode and solar energy heating mode to be carried out with to the water in water tank 10 Heating, during the water in water tank 10 is heated, the first detection means 80 detects the water temperature in water tank 10 always, when When the water temperature that first detection means 80 is detected in water tank 10 reaches design temperature Ts, controller control heat pump main frame 30, heat exchange Module 40 and solar energy heating plate module 60 are out of service stopping heating the water in water tank 10.
Second situation be:Ta1≤M < Ta2, if △ T before the 3rd time point after positioned at the second time point >= △ T1 then have been used up solar energy heating mode and the water in water tank 10 are heated, what the water in water tank 10 was heated During, the first detection means 80 detects the water temperature in water tank 10 always, if the first detection after reaching for the 3rd time point When the water temperature that device 80 is detected in water tank 10 is also not reaching to design temperature Ts and △ T >=△ T1, then controller controls heat pump Main frame 30 brings into operation, with by using heat pump mode and the coefficient mode of solar energy heating mode with to water tank 10 Interior water is heated, when the water temperature that the first detection means 80 is detected in water tank 10 reaches design temperature Ts, controller Control heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 out of service to stop carrying out the water in water tank 10 Heat, wherein the 3rd time point can specifically be set according to the volume size of heat pump main frame 30 and water tank 10, to ensure setting Having hot water after fixed time point can use, in some examples of the invention, the time point for setting as afternoon 19:00, the The scope at three time points could be arranged to 14:00~16:Between 00.
The third situation:M >=Ta2, before the 4th time point after positioned at the second time point one if △ T >=△ T1 It is straight the water in water tank 10 is heated using solar energy heating mode, during the water in water tank 10 is heated, First detection means 80 detects the water temperature in water tank 10 always, if the first detection means 80 is examined after reaching for the 4th time point Measure when the water temperature in water tank 10 is also not reaching to design temperature Ts and △ T >=△ T1, then controller control heat pump main frame 30 is opened Begin to run, enter with to the water in water tank 10 with by using heat pump mode and the coefficient mode of solar energy heating mode Row heating, when the water temperature that the first detection means 80 is detected in water tank 10 reaches design temperature Ts, controller control heat pump Main frame 30, heat exchange module 40 and solar energy heating plate module 60 are out of service to stop heating the water in water tank 10, its In the 4th time point be located at after the 3rd time point, and the 4th time point can be according to heat pump main frame 30 and the volume size of water tank 10 Specifically set, to ensure to there is the hot water can to use after the time point of setting, in some examples of the invention, the 4th The scope at time point could be arranged to 16:00~18:Between 00.
Water heater 1000 according to inventive embodiments, by being provided with heat pump main frame 30, heat exchange module 40 and solar energy collection Hot plate module 60, controller can be according to the first detection means 80, the detection knot of the detection means 100 of second detection device 90 and the 3rd Fruit controls the running status of heat pump main frame 30, heat exchange module 40 and solar energy heating plate module 60 to realize to the water in water tank 10 The purpose for being heated, so that solar energy not only can be fully utilized, while the supply of hot water can be ensured, lifting using energy source effect Rate, and the water heater 1000 can be pot-type boiler.
Some embodiments of the invention, as depicted in figs. 1 and 2, heat exchange module 40 includes:Heat exchanger 401 and first Water pump 402, wherein, heat exchanger 401 is connected to limit first circulation loop with circulating water outlet 103 and circulating water intake 104 50, the first water pump 402 is connected on first circulation loop 50, now can by control the first water pump 402 opening and closing with Whether the water in control water tank 10 flows in first circulation loop 50.Alternatively, heat exchanger 401 can for double pipe heat exchanger or Plate type heat exchanger.So that the simple structure of heat exchange module 40, and it is easy to control the running status of heat exchange module 40.
Further, solar energy heating plate module 60 includes:The water pump 602 of solar heat-collection plate 601 and second, wherein, too Positive energy collecting plate 601 is connected with heat exchanger 401 to limit second circulation loop 70, and the second water pump 602 is connected on second circulation On loop 70, now the heat exchange in solar heat-collection plate 601 can be controlled to be situated between by controlling the opening and closing of the second water pump 602 Whether matter flows in second circulation loop 70.That is, when the first water pump 402 is controlled and the second water pump 602 is opened, water , in the internal circulation flow of first circulation loop 50, the heat transferring medium in solar heat-collection plate 601 is in second circulation ring for water in case 10 The internal circulation flow of road 70 with cause first circulation loop 50 in water and second circulation loop 70 in heat transferring medium can heat exchange Exchanged heat in module 40, so as to realize heating the water in water tank 10.When control the first water pump 402 and the second water pump During 602 closing, that is, stop the heat transfer process in heat exchange module 40, so as to stop heating the water in water tank 10.
As shown in Fig. 2 in some embodiments of the invention, water heater 1000 also includes shell 120, the He of heat pump main frame 30 Water tank 10 is located in shell 120, so that heat pump main frame 30 and water tank 10 are designed as monoblock type, specifically, heat pump main frame 30 May be provided on top, bottom or the sidepiece of water tank 10.Certainly the invention is not restricted to this, as shown in figure 1, it is of the invention other In embodiment, heat pump main frame 30 and water tank 10 are split type.
A kind of control method of water heater of embodiment according to a second aspect of the present invention is described below with reference to Fig. 1-Fig. 3, its Middle water heater is the water heater 1000 according to first aspect present invention embodiment.
The control method of water heater according to embodiments of the present invention, as shown in figure 3, comprising the following steps:
S1:Control first time point of the 3rd detection means 100 in one day and sensing chamber's outer shroud between the second time point Border temperature, the second time point is located at after first time point, while the water temperature in the detection water tank 10 of the first detection means 80, second The temperature of the heat transferring medium in the detection of detection means 90 solar energy heating plate module 60, and the heat transferring medium that will be detected temperature Temperature-the water temperature of the difference △ T=heat transferring mediums between water temperature is compared with the first temperature value △ T1 and second temperature value △ T2 Compared with.Specifically, the time interval that outdoor environment temperature is detected between first time point and the second time point is 5~60 minutes. In some examples of the invention, the scope of the first temperature value △ T1 is 10~15 DEG C, the scope of the second temperature value △ T2 It is 3~8 DEG C
S2:Before the second time point, if the water temperature in water tank 10 is less than design temperature Ts and T >=△ T1, controller Control solar energy heating plate module 60 and heat exchange module 40 run and are heated with to the water in water tank 10, if the water in water tank 10 Temperature is less than design temperature Ts and T < △ T2, then stop heating the water in water tank 10, wherein, before the second time point Stop heating the water in water tank 10 if the water temperature in water tank 10 reaches design temperature Ts.
S3:After the second time point, if the water temperature that the first detection means 80 is detected in water tank 10 is less than design temperature During Ts, then the outdoor environment temperature for detecting is averaged to obtain the average value M of outdoor environment temperature, and will be average Value M and first environment set temperature value Ta1 and second environment set temperature value Ta2 be compared with judge the second time point it It is afterwards that individually the water in water tank 10 is heated together using solar energy heating mode or with heat pump mode.
S3:As M < Ta1, controller control heat pump main frame 30 runs, if now △ T >=△ T1, the same time control of controller Solar energy heating plate module 60 processed and heat exchange module 40 run and are heated until the first detection means with to the water in water tank 10 80 water temperatures detected in water tank 10 reach design temperature Ts, that is to say, that now added using solar energy heating mode and heat pump Both mode of heatings of hot mode act on and the water in water tank 10 are heated simultaneously.
As Ta1≤M < Ta2, controller controls solar energy heating template die if △ T >=△ T1 before the 3rd time point Block 60 and heat exchange module 40 run and are heated with to the water in water tank 10, if the first detection means 80 after the 3rd time point The water temperature in water tank 10 is detected less than design temperature Ts, controller control heat pump main frame 30 runs, if being still now △ T >=△ T1, then solar energy heating plate module 60 and heat exchange module 40 are still added in running status with to the water in water tank 10 Heat, until the water temperature in water tank 10 reaches design temperature Ts, that is to say, that before the 3rd time point, if △ T >=△ T1 Only with solar energy heating, a kind of this mode of heating is heated to the water in water tank 10, if in the rear water box at the 3rd time point Water temperature in 10 is not reaching to design temperature Ts and △ T >=△ T1, then use solar energy heating simultaneously after the 3rd time point Mode and both mode of heatings of heat pump mode are heated to the water in water tank 10 until the water temperature in water tank 10 reaches Design temperature Ts.
As M >=Ta2, controller controls solar energy heating plate module 60 if △ T >=△ T1 before the 4th time point Run with heat exchange module 40 and heated with to the water in water tank 10, if the first detection means 80 is detected after the 4th time point Be less than design temperature Ts to the water temperature in water tank 10, then controller control heat pump main frame 30 runs, if be still now △ T >= △ T1, then solar energy heating plate module 60 and heat exchange module 40 are still added in running status with to the water in water tank 10 Heat, until the water temperature in water tank 10 reaches design temperature Ts, the 4th time point was located at after the 3rd time point.Namely Say, before the 4th time point, if △ T >=△ T1 only with solar energy heating a kind of this mode of heating to the water in water tank 10 Heated, after the 4th time point, if the water temperature in water tank 10 is not reaching to design temperature Ts and △ T >=△ T1, The water in water tank 10 is heated using solar energy heating mode and heat pump mode both mode of heatings simultaneously, until Water temperature in water tank 10 reaches design temperature Ts.
The control method of water heater according to embodiments of the present invention, by using above-mentioned rate-determining steps, so as to can not only protect Card fully utilizes solar energy, while the supply of hot water can be ensured, can lift efficiency of energy utilization.
Describe the control method of water heater 1000 according to the preferred embodiment of the invention in detail below with reference to Fig. 1-Fig. 3.
First, between first time point and the second time point, it is spaced is examined with the 3rd detection means 100 at predetermined time intervals Outdoor environment temperature is surveyed, the span of first time point is morning 6:00~9:00, the span at the second time point is early Upper 11:00~12:00, predetermined time interval is 5~60 minutes.Water temperature in the water tank 10 of the detection of first detection means 80 simultaneously, Second detection device 90 detects the temperature of heat transferring medium, and the temperature of the heat transferring medium that second detection device 90 is detected and the The water temperature in water tank 10 that one detection means 80 is detected is compared to obtain difference △ T, and by difference △ T and the first temperature Value △ T1 and second temperature value △ T2 are compared, now, before the second time point, when the first detection means 80 detects water When water temperature in case 10 is less than design temperature Ts, during with time difference value △ T >=△ T1, the first water pump 402 and the second water pump 602 are controlled Operate such that the water in first circulation loop 50 exchanges heat with the heat transferring medium in second circulation loop 70 in heat exchange module 40, So as to be heated to the water in water tank 10.As difference △ T < △ T2, then stop heating the water in water tank 10.
Then, after reaching for the second time point, if the water temperature that the first detection means 80 is detected in water tank 10 is less than set During constant temperature degree Ts, then the outdoor environment temperature for collecting is averaging to obtain average value M, and by average value M and first It is independent after the second time point that environment set temperature value Ta1 and second environment set temperature value Ta2 are compared to select The water in water tank 10 is heated together using solar energy heating mode or with heat pump mode.
As M < Ta1, if difference △ T >=△ T1, the first water pump 402 and the second water pump 602 is controlled to operate such that Water in first circulation loop 50 exchanges heat with the heat transferring medium in second circulation loop 70 in heat exchange module 40, while controlling heat Heat exchange agent in pump main frame 30 is exchanged heat by coil pipe 20 with the water in water tank 10, so as to be heated to the water in water tank 10 Until the water temperature in water tank 10 reaches design temperature Ts.If difference △ T < △ T2, close the first water pump 402 and the second water Pump 602, now only by causing that the heat exchange agent in heat pump main frame 30 is exchanged heat by coil pipe 20 with the water in water tank 10, with right Water in water tank 10 is heated, 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 the He of the first water pump 402 is controlled Second water pump 602 operates such that heat transferring medium in water in first circulation loop 50 and second circulation loop 70 in heat exchange mould Heat exchange is to the water in water tank 10 so as to heat in block 40, if the difference △ T < △ T2 before the 3rd time point, controls the One water pump 402 and the second water pump 602 are out of service stopping heating the water in water tank 10.After the 3rd time point, If the water temperature in the detection water tank 10 of the first detection means 80 is less than design temperature Ts, control heat pump main frame 30 is run with to water Water in case 10 is heated, if being still now difference △ T >=△ T1, the first water pump 402 and the second water pump 602 continue Operate such that the water in first circulation loop 50 exchanges heat with the heat transferring medium in second circulation loop 70 in heat exchange module 40 So as to be heated to the water in water tank 10, i.e., using two kinds of mode of heatings of heat pump and solar energy heating in water tank 10 Water is heated, if after the 3rd time point, the water temperature in water tank 10 is less than design temperature Ts but difference △ T < △ T2, then Control heat pump main frame 30 runs and is heated with to the water in water tank 10.
As M >=Ta2, if difference △ T >=△ T1 before the 4th time point, then the first water pump 402 and second is controlled Water pump 602 operates such that heat transferring medium in water in first circulation loop 50 and second circulation loop 70 in heat exchange module 40 It is interior to exchange heat so as to be heated to the water in water tank 10, if the difference △ T < △ T2 before the 4th time point, control the first water The water pump 602 of pump 402 and second is out of service stopping heating the water in water tank 10.After the 4th time point, if Water temperature in the detection water tank 10 of first detection means 80 is less than design temperature Ts, then control heat pump main frame 30 to run with to water tank 10 Interior water is heated, if being still now difference △ T >=△ T1, the first water pump 402 and the second water pump 602 are continued to run with With cause the heat transferring medium in water and the second circulation loop 70 in first circulation loop 50 in heat exchange module 40 heat exchange so as to Water in water tank 10 is heated, i.e., the water in water tank 10 is entered using two kinds of mode of heatings of heat pump and solar energy heating Row heating, if after the 4th time point, the water temperature in water tank 10 is less than design temperature Ts but difference △ T < △ T2, then only control Heat pump main frame 30 and run and heated with to the water in water tank 10.Wherein, the 4th time point is after the 3rd time point.
Other of water heater 1000 according to embodiments of the present invention are constituted and operated for those of ordinary skill in the art For be all known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the invention or example.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy Point can in an appropriate manner be combined in one or more any embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this The scope of invention is limited by claim and its equivalent.

Claims (13)

1. a kind of water heater, it is characterised in that including:
Water tank, the water tank is provided with hot water outlet, cooling water inlet, circulating water outlet and circulating water intake;
Coil pipe for heating the water in the water tank;
Heat pump main frame, the heat pump main frame is connected with the coil pipe;
Heat exchange module, the heat exchange module is connected with the water tank and institute with the circulating water outlet and the circulating water intake State formation first circulation loop between heat exchange module;
Solar energy heating plate module, the solar energy heating plate module is connected with the solar energy heating with the heat exchange module Second circulation loop, water and the second circulation in the first circulation loop are formed between plate module and the heat exchange module Heat transferring medium in loop exchanges heat in the heat exchange module;
The first detection means for detecting the water temperature in the water tank;
Second detection device for detecting the temperature of the heat transferring medium in the solar energy heating plate module;
The 3rd detection means for detecting outdoor environment temperature;
Controller, the controller be connected with the heat pump main frame, the heat exchange module and the solar energy heating plate module with Testing result according to first detection means, the second detection device and the 3rd detection means controls the heat pump The running status of main frame, the heat exchange module and the solar energy heating plate module;During water heater working, the 3rd detection dress Put sensing chamber between the two time points i.e. first time point in a day and the second time point after first time point External environment temperature, will detect the difference △ T and the first temperature value △ T1 and the second temperature between the temperature of heat transferring medium and water temperature Angle value △ T2 are compared, wherein, the first temperature value △ T1 are more than second temperature value △ T2;
Before the second time point, controlled if the water temperature in the water tank is less than design temperature Ts and △ T >=△ T1 it is described too Positive energy thermal-arrest plate module and heat exchange module operation are heated with to the water in water tank, when the water temperature in the water tank is less than When design temperature Ts and △ T < △ T2, then the water in water tank is not heated;
After the second time point, if the water temperature that first detection means is detected in water tank is less than design temperature Ts, The outdoor environment temperature for detecting is averaged after second time point, to obtain the average value M of outdoor environment temperature, So as to judge it is individually to add using solar energy heating mode or with heat pump after the second time point according to average value M Hot mode is heated to the water in the water tank together.
2. water heater according to claim 1, it is characterised in that the heat exchange module includes:
Heat exchanger, the heat exchanger is connected to limit the first circulation with the circulating water outlet and the circulating water intake Loop;
First water pump, first water pump is connected on the first circulation loop.
3. water heater according to claim 2, it is characterised in that the heat exchanger is double pipe heat exchanger or plate-type heat-exchange Device.
4. water heater according to claim 2, it is characterised in that the solar energy heating plate module includes:
Solar heat-collection plate, the solar heat-collection plate is connected to limit the second circulation loop with the heat exchanger;
Second water pump, second water pump is connected on the second circulation loop.
5. water heater according to claim 1, it is characterised in that the coil pipe includes:
Side panel pipe, the side panel pipe ring is wound on the lateral wall of the water tank;
Bottom coil, the bottom coil is located in the exterior bottom wall of the water tank.
6. water heater according to claim 1, it is characterised in that the coil pipe is located in the water tank.
7. water heater according to claim 1, it is characterised in that also including shell, the heat pump main frame and the water tank It is located in the shell.
8. water heater according to claim 7, it is characterised in that the heat pump main frame is located at the top of the water tank.
9. water heater according to claim 1, it is characterised in that first detection means, the second detection device Temperature sensor is respectively with the 3rd detection means.
10. a kind of control method of water heater, the water heater is the water heater according to claim 1, it is characterised in that The control method comprises the following steps:
S1:Control first time point of the 3rd detection means in one day and outdoor environment temperature detected between the second time point, Second time point is located at after the first time point, while the water temperature in the first detection means detection water tank, the second inspection Survey device detection solar energy heating plate module in heat transferring medium temperature, and the heat transferring medium that will be detected temperature and water temperature Between difference △ T and the first temperature value △ T1 and second temperature value △ T2 be compared;
S2:Before second time point, controlled if the water temperature in the water tank is less than design temperature Ts and △ T >=△ T1 Solar energy heating plate module and heat exchange module operation are heated with to the water in water tank;
S3:After second time point, the outdoor if the water temperature in the water tank is less than design temperature Ts to detecting Environment temperature is averaged to obtain the average value M of the outdoor environment temperature, and by the average value M and first environment Set temperature value Ta1 and second environment set temperature value Ta2 are compared;
S4:As M < Ta1, controller controls the heat pump main frame operation, if now △ T >=△ T1, controller is controlled simultaneously The solar energy heating plate module and heat exchange module operation are heated until described first with to the water in the water tank The water temperature that detection means is detected in the water tank reaches design temperature Ts;
As Ta1≤M < Ta2, controller controls the solar energy heating template die if △ T >=△ T1 before the 3rd time point Block and heat exchange module operation are heated with to the water in water tank, if first detection after the 3rd time point Device detects water temperature in the water tank less than design temperature Ts and △ T >=△ T1, then controller control the heat pump main frame, The solar energy heating plate module and heat exchange module operation are heated with to the water in the water tank, until the water tank Interior water temperature reaches design temperature Ts;
As M >=Ta2, before the 4th time point if △ T >=△ T1 controller control the solar energy heating plate module and The heat exchange module operation is heated with to the water in water tank, if first detection means after the 4th time point Water temperature in the water tank is detected less than design temperature Ts and △ T >=△ T1, controller control the heat pump main frame, it is described too Positive energy thermal-arrest plate module and heat exchange module operation are heated with to the water in the water tank, the water in the water tank Temperature reaches design temperature Ts, and the 4th time point was located at after the 3rd time point.
The control method of 11. water heaters according to claim 10, it is characterised in that the first environment set temperature value The scope of Ta1 is 13~23 DEG C, and the scope of the second environment set temperature value Ta2 is 25~35 DEG C.
The control method of 12. water heaters according to claim 10, it is characterised in that the model of the first temperature value △ T1 It is 10~15 DEG C to enclose, and the scope of the second temperature value △ T2 is 3~8 DEG C.
The control method of 13. water heaters according to claim 10, it is characterised in that described first in the step S1 The time interval that outdoor environment temperature is detected between time point and second time point is 5~60 minutes.
CN201310248621.7A 2013-06-20 2013-06-20 Water heater and its control method Expired - Fee Related CN104236089B (en)

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Publication number Priority date Publication date Assignee Title
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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Publication number Priority date Publication date Assignee Title
JP2007170690A (en) * 2005-12-19 2007-07-05 Sharp Corp Heat pump water heater and its control method
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170690A (en) * 2005-12-19 2007-07-05 Sharp Corp Heat pump water heater and its control method
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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