CN104976782A - Control method for vertical electric water heater - Google Patents
Control method for vertical electric water heater Download PDFInfo
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- CN104976782A CN104976782A CN201510455897.1A CN201510455897A CN104976782A CN 104976782 A CN104976782 A CN 104976782A CN 201510455897 A CN201510455897 A CN 201510455897A CN 104976782 A CN104976782 A CN 104976782A
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Abstract
The invention discloses a control method for a vertical electric water heater. The control method comprises the steps that when water is used, the temperature Ts of water on the upper portion of the vertical electric water heater is detected continuously, if Ts is lower than a first preset temperature t1, a second heater is used for heating, and if Ts is not lower than the first preset temperature t1, the second heater is switched off. According to the control method for the vertical electric water heater, energy consumption can be reduced, the energy utilization rate is improved, and the hot water supplying efficiency of the vertical electric water heater is further improved.
Description
Technical field
The present invention relates to technical field of water heaters, particularly a kind of control method of vertical electric water heater.
Background technology
Along with the raising of national energy-saving environmental requirement, living standards of the people improve constantly, electric heater becomes a kind of main flow or universal pot-type boiler, usual electric heater adopts a heater to heat the water in inner bag, and vertical machine is because water layer is higher, and firing rate slowly, often to wait for a long time, to treat in inner bag that water has heated just can bring into use, need to consume long time and more electric energy, the efficiency of heating surface is difficult to be improved.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the invention reside in the control method proposing a kind of vertical electric water heater, improve hot water delivery efficiency and energy-conservation.
According to the control method of the vertical electric water heater of the embodiment of the present invention, primary heater and secondary heater is provided with in described vertical electric water heater, described primary heater is located at the bottom in described vertical electric water heater, and described secondary heater is located at the top of described vertical electric water heater, described primary heater and described secondary heater connection control device independently of each other, described control method comprises: when using water, continue to detect vertical electric water heater top water temperature Ts, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1, then secondary heater heating, if vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnect secondary heater.
According to the control method of the vertical electric water heater of the embodiment of the present invention, the quick startup of vertical electric water heater can be realized by the heating of secondary heater, because the water of the vertical electric heater internal upper part of secondary heater heats, the hot water that hot water is vertical electric water heater internal upper part is exported in vertical electric water heater use procedure, and due to the characteristic at the easy upper reaches of hot water, major part in heat when making secondary heater heating water can remain on the top in vertical electric water heater, therefore, energy consumption can be reduced, improve energy utilization rate, and accelerate the efficiency that vertical electric water heater provides hot water further.
In addition, the control method of vertical electric water heater according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, described control method also comprises: when using water, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1 and higher than the second preset temperature t2, then secondary heater heats separately; If vertical electric water heater internal upper part water temperature T s is not higher than the second preset temperature t2, then primary heater and secondary heater heat simultaneously, and wherein, the first preset temperature t1 is greater than the second preset temperature t2.
According to one embodiment of present invention, described control method comprises quick using state, in described quick using state, all stops heating without primary heater during water and secondary heater.
According to one embodiment of present invention, described control method also comprises lasting using state, in described lasting using state, without during water, Vertical Heat hydrophone water temperature inside is remained on design temperature t.
Further, in described lasting using state, the control method of described vertical electric water heater also comprises: when using water, if vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnects secondary heater and opens primary heater.
According to one embodiment of present invention, described control method comprises quick using state and lasting using state, and in described quick using state, if without water, then primary heater and secondary heater all stop heating; In described lasting using state, if without water, Vertical Heat hydrophone water temperature inside is remained on design temperature t, wherein, under quick using state, if the water temperature of described vertical electric water heater internal upper part continues maintenance and is not less than the first preset temperature t1 and vertical electric water heater maintenance water state within the scheduled time, then enter lasting using state.
According to one embodiment of present invention, if the design temperature of described vertical electric water heater is t, then described first preset temperature t1=t+a, and described second preset temperature t2=t-b, wherein, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.
According to one embodiment of present invention, the detection method of described water state comprises: detect described vertical electric water heater internal upper part water temperature T s, if the temperature of vertical electric water heater internal upper part water temperature T s decline per minute is not less than predetermined temperature difference, then judges that described vertical electric water heater is in and use water state.
Further, the test point of described vertical electric water heater internal upper part water temperature T s is multiple, in multiple described test point, the temperature of decline per minute is at least partially not less than predetermined temperature difference, then judge that described vertical electric water heater is in water state, described predetermined temperature difference is in the scope of 1 DEG C to 3 DEG C.
The invention allows for the control method of another kind of vertical electric water heater, primary heater and secondary heater is provided with in described vertical electric water heater, described primary heater is located at the bottom in described vertical electric water heater, and described secondary heater is located at the top of described vertical electric water heater, described primary heater and described secondary heater connection control device independently of each other, the control method of described vertical electric water heater comprises: step 1, start vertical electric water heater, the design temperature of described vertical electric water heater is t, step 2, continue detect vertical electric water heater water temperature inside and whether use water: if without water, then be incubated to t by least one heating vertical electric water heater water temperature inside in primary heater and secondary heater, if with water, then detect vertical electric water heater internal upper part water temperature T s, when vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, primary heater heats separately, do not heat higher than primary heater during the second preset temperature t2 and secondary heater at vertical electric water heater internal upper part water temperature T s simultaneously, when vertical electric water heater internal upper part water temperature T s is between the first preset temperature t1 and the second preset temperature t2, secondary heater heats separately, wherein, described first preset temperature t1=t+a, described second preset temperature t2=t-b, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.
Accompanying drawing explanation
Fig. 1 to Fig. 4 is the schematic flow sheet of the control method of the vertical electric water heater of one embodiment of the invention.
Fig. 5 is the schematic diagram of the vertical electric water heater of one embodiment of the invention.
Reference numeral: vertical electric water heater 100, vertical inner bag 1, primary heater 21, secondary heater 22, the axis 101 of vertical inner bag 1, water inlet pipe 11, outlet pipe 12, temperature-sensing pipe 3, the first ring flange 211, second ring flange 221, cylinder 13, top cover 14, bottom 15.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
As shown in Figure 5, according to the vertical electric water heater of the embodiment of the present invention, primary heater and secondary heater is provided with in described vertical electric water heater, described primary heater is located at the bottom in described vertical electric water heater, and described secondary heater is located at the top of described vertical electric water heater, described primary heater and described secondary heater connection control device independently of each other.
As shown in Figure 1, the control method of described vertical electric water heater comprises: when using water, continues to detect vertical electric water heater top water temperature Ts, and determines whether to use secondary heater heating according to vertical electric water heater top water temperature Ts.
Specifically, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1, then secondary heater heating; If vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnect secondary heater.
The top in vertical electric water heater is arranged on due to secondary heater, therefore, can by the top heating in the vertical electric heater of secondary heater, make the temperature that the water temperature of vertical electric water heater internal upper part reaches suitable fast, thus can use fast, and when vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, can be energy-conservation by disconnecting secondary heater.
According to the control method of the vertical electric water heater of the embodiment of the present invention, the quick startup of vertical electric water heater can be realized by the heating of secondary heater, because the water of the vertical electric heater internal upper part of secondary heater heats, the hot water that hot water is vertical electric water heater internal upper part is exported in vertical electric water heater use procedure, and due to the characteristic at the easy upper reaches of hot water, major part in heat when making secondary heater heating water can remain on the top in vertical electric water heater, therefore, energy consumption can be reduced, improve energy utilization rate, and accelerate the efficiency that vertical electric water heater provides hot water further.
Wherein, the first described preset temperature t1 is the temperature arranged in order to vertical electric water heater can export suitable hot water, the value of the first preset temperature t1 can be set according to the design temperature t of water heater, if the design temperature t of water heater is set to 65 DEG C (this temperature is generally adjustable), first preset temperature t1 is arranged to higher than design temperature t, such as the first preset temperature t1=t+8 DEG C=65 DEG C+8 DEG C=73 DEG C.Certainly, those of ordinary skill in the art can select the settings of the first preset temperature t1 according to actual conditions.
Such as, in examples more of the present invention, if the design temperature of described vertical electric water heater is t, then described first preset temperature t1=t+a, wherein, a value in the scope of 4 DEG C to 10 DEG C.First preset temperature t1 is arranged to be higher than the object of design temperature, avoids the shutoff of primary heater too frequent, but also the thermal losses in exiting water process can be offset.
As shown in Figure 2, in some embodiments of the invention, described control method also comprises: when using water, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1 and higher than the second preset temperature t2, then secondary heater heats separately; If vertical electric water heater internal upper part water temperature T s is not higher than the second preset temperature t2, then primary heater and secondary heater heat simultaneously, and wherein, the first preset temperature t1 is greater than the second preset temperature t2.Like this, the water in vertical electric water heater can be heated rapidly by the combination of primary heater and secondary heater compared with (such as water consumption is large) time low in water temperature.
Wherein, the second described preset temperature t2 is the temperature arranged in order to vertical electric water heater can export suitable hot water, the value of the second preset temperature t2 can be set according to the design temperature t of water heater, if the design temperature t of water heater is set to 65 DEG C (this temperature is generally adjustable), can the second preset temperature t2 be arranged to lower than design temperature t, such as the second preset temperature t2=t-4 DEG C=65 DEG C-4 DEG C=61 DEG C.Certainly, those of ordinary skill in the art can select the settings of the second preset temperature t2 according to actual conditions.
Such as, in examples more of the present invention, if the design temperature of described vertical electric water heater is t, then described first preset temperature t1=t+a, and described second preset temperature t2=t-b, wherein, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.This setup can avoid the shutoff of primary heater too frequent.
With reference to Fig. 2, and composition graphs 1 and Fig. 4, in some embodiments of the invention, described control method comprises quick using state, in described quick using state, all stops heating without primary heater during water and secondary heater.To facilitate the quick use of vertical electric water heater, but also energy-conservation.
In addition, with reference to Fig. 3, and composition graphs 2 and Fig. 4, in examples more of the present invention, described control method also comprises lasting using state, in described lasting using state, without during water, Vertical Heat hydrophone water temperature inside is remained on design temperature t.
Further, as shown in Figure 3, in described lasting using state, the control method of described vertical electric water heater also comprises: when using water, if vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnects secondary heater and open primary heater.
In addition, can switch between described quick using state and lasting using state, such as, be switched by the control panel etc. of vertical electric water heater, also can adopt automatic switchover.Shown below is an example automatically switched.
As shown in Figure 4, in some embodiments of the invention, described control method comprises quick using state and lasting using state, and in described quick using state, if without water, then primary heater and secondary heater all stop heating; In described lasting using state, if without water, Vertical Heat hydrophone water temperature inside is remained on design temperature t, wherein, under quick using state, if the water temperature of described vertical electric water heater internal upper part continues maintenance and is not less than the first preset temperature t1 and vertical electric water heater maintenance water state within the scheduled time, then enter lasting using state.
Described scheduled time scope can be 1 minute, 2 minutes, 5 minutes etc.
In examples more of the present invention, the detection method of described water state comprises: detect described vertical electric water heater internal upper part water temperature T s, if the temperature of vertical electric water heater internal upper part water temperature T s decline per minute is not less than predetermined temperature difference, then judges that described vertical electric water heater is in and use water state.
Further, the test point of described vertical electric water heater internal upper part water temperature T s is multiple, in multiple described test point, the temperature of decline per minute is at least partially not less than predetermined temperature difference, then judge that described vertical electric water heater is in water state, described predetermined temperature difference is in the scope of 1 DEG C to 3 DEG C.
The control method of vertical electric water heater of the present invention comprises numerous embodiments, is described below for three kinds of embodiments.
Embodiment 1
As shown in the lasting using state in Fig. 3 and Fig. 4, the control method of described vertical electric water heater comprises:
Step 1, start vertical electric water heater, the design temperature of described vertical electric water heater is t.Arrange after the design temperature t of vertical electric water heater can start vertical electric water heater, also can for remain after arranging in the past.
Step 2, continues detect vertical electric water heater water temperature inside and whether use water:
If without water, be then incubated to t by least one heating vertical electric water heater water temperature inside in primary heater and secondary heater,
If with water, then detect vertical electric water heater internal upper part water temperature T s,
When vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, primary heater heats separately, do not heat higher than primary heater during the second preset temperature t2 and secondary heater at vertical electric water heater internal upper part water temperature T s simultaneously, when vertical electric water heater internal upper part water temperature T s is between the first preset temperature t1 and the second preset temperature t2, secondary heater heats separately
Wherein, described first preset temperature t1=t+a, described second preset temperature t2=t-b, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.
Embodiment 2
As the quick using state of Fig. 4, the control method of described vertical electric water heater comprises:
Step 1, start vertical electric water heater, the design temperature of described vertical electric water heater is t.Arrange after the design temperature t of vertical electric water heater can start vertical electric water heater, also can for remain after arranging in the past;
Step 2, continue to detect vertical electric water heater and whether use water, if without water, primary heater and secondary heater all do not heat, if with water, continue to detect according to vertical electric water heater internal upper part water temperature T s and judge the duty of vertical electric water heater:
When vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, secondary heater disconnects, at vertical electric water heater internal upper part water temperature T s lower than secondary heater heating during the first preset temperature t1.
Wherein, described first preset temperature t1=t+a, a value in the scope of 4 DEG C to 10 DEG C.
Embodiment 3
As shown in Figure 4, in the step 2 of embodiment 2, if vertical electric water heater internal upper part water temperature T s keeps being not less than the first preset temperature t1, and vertical electric water heater keeps using the water scheduled time, then enter the step 2 in embodiment 1.
In addition, as shown in Figure 5, the invention also discloses a kind of vertical electric water heater 100, comprising: vertical inner bag 1, primary heater 21 and secondary heater 22.
Specifically, the axis 101 of vertical inner bag 1 extends along the vertical direction, vertical inner bag 1 is connected with water inlet pipe 11 and outlet pipe 12, and water inlet pipe 11 is communicated with the bottom in vertical inner bag 1, and outlet pipe 12 extend into the top in vertical inner bag 1.Primary heater 21 extend into the bottom in vertical inner bag 1, and secondary heater 22 extend into the top in vertical inner bag 1, wherein, and primary heater 21 and secondary heater 22 connection control device independently of each other.That is, primary heater 21 and secondary heater 22 power on/off independently of each other.
According to the vertical electric water heater 100 of the embodiment of the present invention, be provided with primary heater 21 and secondary heater 22, and these two heaters are separate, therefore, can, under different service conditions, the water of diverse location in the vertical inner bag 1 of heater be suitably selected to heat.
Such as, at the quick hot water of needs and reduce can be consuming time, the secondary heater 22 being arranged at vertical inner bag 1 top can be adopted to heat, and adopt when water temperature is lower primary heater 21 and secondary heater 22 to heat simultaneously.Certainly, this is only a concrete example of the present invention, situation can please carry out unrestricted choice according to use.
Therefore, vertical electric water heater 100 of the present invention arranges separate primary heater 21 and secondary heater 22, the convenient diverse location controlled in primary heater 21 and the vertical electric heater 100 of secondary heater 22 heats separately, not only facilitate the use of vertical electric water heater 100, but also the energy consumption of vertical electric water heater 100 can be reduced, energy-conserving and environment-protective.
As Fig. 5, in some embodiments of the invention, the bottom of vertical inner bag 1 has the first opening (not shown), and primary heater 21 comprises the first ring flange 211, first ring flange 211 and is connected with vertical inner bag 1 and closes described first opening.In addition, primary heater 21 extend in vertical inner bag 1, therefore, can facilitate the installation of primary heater 21, and improves the sealing of vertical inner bag 1.
Further, the first ring flange 211 is welded with temperature-sensing pipe 3, the end of probe of temperature-sensing pipe 3 extend in vertical inner bag 1.Facilitate the installation of temperature-sensing pipe 3.
As shown in Figure 5, in some embodiments of the invention, the perisporium of vertical inner bag 1 upper end has the second opening (not shown), and secondary heater 22 comprises the second ring flange 221, second ring flange 221 and is connected with vertical inner bag 1 and closes described second opening.In addition, secondary heater 22 extend in vertical inner bag 1, therefore, can facilitate the installation of secondary heater 22, and improves the sealing of vertical inner bag 1.
In addition, also temperature-sensing pipe can be set on the second ring flange 221, certainly, or temperature-sensing pipe be arranged on other position in vertical inner bag 1.
With reference to Fig. 5, in some embodiments of the invention, primary heater 21 extends along the axis 101 of vertical inner bag 1, and secondary heater 22 is along horizontal-extending.
Further, with reference to Fig. 5, the upper end of primary heater 21 extends to the position of 2/5 to 3/5 of inner bag height, and secondary heater 22 is positioned at the position of 2/3 to 4/5 scope of inner bag height.Whole vertical inner bag 1 is heated by primary heater 21 to facilitate, and the top heating in the vertical inner bag 1 of secondary heater 22.
In some embodiments of the invention, in primary heater 21 and secondary heater 22, any one part stretched in vertical inner bag 1 is roundabout folding shape.Increase the contact area of water in vertical inner bag 1 and heating tube, to improve the efficiency of heating surface.
As Fig. 5, in examples more of the present invention, vertical electric water heater 100 also comprises at least one temperature-sensing pipe 3, and temperature-sensing pipe 3 extend in vertical inner bag 1.Conveniently can be detected the water temperature in vertical electric water heater 100 by temperature-sensing pipe 3, control vertical electric water heater 100 to facilitate.
Further, with reference to Fig. 5, the upper surface of outlet pipe 12 is in the inclined plane shape tilted.The water in vertical inner bag 1 is facilitated to be discharged by outlet pipe 12.
In some embodiments of the invention, vertical inner bag 1 comprises cylinder 13, top cover 14 and bottom 15, the axis (i.e. the axis 101 of vertical inner bag 1) of cylinder 13 extends along the vertical direction, top cover 14 is located at the top of cylinder 13 and the upper end of closed cylinder 13, and bottom 15 is located at the bottom of cylinder 13 and the lower end of closed cylinder 13.Thus form a closed chamber by the cooperation of cylinder 13, top cover 14 and bottom 15.In addition, sealing and the production efficiency of vertical inner bag 1 can be improved.
5 vertical electric water heaters 100 describing the present invention's specific embodiment with reference to the accompanying drawings.
Vertical electric water heater 100 of the present invention comprises: vertical inner bag 1, primary heater 21, secondary heater 22, water inlet pipe 11, outlet pipe 12 and temperature-sensing pipe 3.Water inlet pipe 11 and outlet pipe 12 are arranged in inner bag, and water inlet pipe 11 is positioned at vertical inner bag 1 right-hand member bottom position, and outlet pipe 12 is positioned at vertical inner bag 1 left end, and pipe range goes directly vertical inner bag 1 top.Primary heater 21 is positioned at vertical inner bag 1 lower floor position, secondary heater 22 is positioned at vertical inner bag 1 topside position, temperature-sensing pipe 3 is positioned on primary heater 21, temperature-sensing pipe 3 is welded on the first ring flange 211 of primary heater 21, temperature-sensing pipe 3 can insert sensor probe, the break-make of temperature controllable and machine power;
Secondary heater 22 heats upper water, can reach i.e. thermal effect, with opening with washing; Primary heater 21 can heat whole courage water, utilizes the layering effect of water temperature, and hot water, to cocycle, realizes the heating of whole courage hydrologic(al) budget.Primary heater 21 and secondary heater 22 can heat simultaneously, also layering can heat as required, realize fast hot merit energy, promote firing rate and the efficiency of heating surface simultaneously, reduce the heat time.
The present invention adopts rational heating location and heating procedure, utilize heated convection and the hierarchical nature of water, control the Control timing sequence of vertical electric water heater 100 cleverly, carry out time-sharing layered heating, can heat upper water separately, realize half courage and immediately heat, with opening with washing, also can heat lower layer of water separately, realize the heating of whole courage, also can heat simultaneously.According to different using state and water temperature state, automatically carry out heating mode switching, owing to heating alternatively up and down, accelerate water convection velocity, make the hot-cast socket thermal efficiency higher, to a certain degree lower use is more energy-conservation, this structure various heating mode used, not only can meet user when using water on a small quantity, quick pyrogenicity, reduces period of reservation of number, when user frequently uses water in a large number, the distribution of heat energy science, makes user use for more time, meets bathing requirement.
Owing to observing Energy conservation law, the water of certain mass is heated to certain temperature rise, energy consumption is certain, therefore whole courage water is heated to certain temperature rise institute energy requirement is certain, the present invention considers in user's water utilizing process, mode of heating is optimized, ingeniously carry out preheating and i.e. hot-cast socket in concentration of energy mode, thus reach rapid hot water output, and prolongation user uses the water time in a large number, and produce more hot water delivery rate in dynamic heat process, and energy-conservation key sees in its transfer process, whether energy has other forms of waste, and cause conversion thermal effect on the low side, the present invention is due to the Control timing sequence of ingenious control electric heater, water is reasonably utilized to heat free convection phenomenon, and water temperature is different, density is different, the natural edge interlayer formed, by the water in vertical inner bag 1 according to electric heater position, its equivalent is divided into two little courages, so when user uses, with bottom primary heater 21 preheating, top secondary heater 22 speed heat, hot water is flowed out by top, for user, shorten the heat time, also improve out hot water rate simultaneously, so also be equivalent in user's short time and can use hot water, more hot water is had to use in long-time, due to the ingenious conversion of energy, making water heater performance obtain more practicality to promote. present invention process performance is good, hardware circuit connected mode and peripheral control mode are not done and are changed on existing basis, only utilize water heating phenomena, by rational logical combination mode, control electrical heating order, realize energy-conserving and environment-protective type quick electric water heater.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. the control method of a vertical electric water heater, primary heater and secondary heater is provided with in described vertical electric water heater, described primary heater is located at the bottom in described vertical electric water heater, and described secondary heater is located at the top of described vertical electric water heater, described primary heater and described secondary heater connection control device independently of each other, it is characterized in that, described control method comprises:
When using water, continue to detect vertical electric water heater top water temperature Ts, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1, then secondary heater heating; If vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnect secondary heater.
2. the control method of vertical electric water heater according to claim 1, is characterized in that, described control method also comprises:
When using water, if vertical electric water heater internal upper part water temperature T s is lower than the first preset temperature t1 and higher than the second preset temperature t2, then secondary heater heats separately; If vertical electric water heater internal upper part water temperature T s is not higher than the second preset temperature t2, then primary heater and secondary heater heat simultaneously, and wherein, the first preset temperature t1 is greater than the second preset temperature t2.
3. the control method of vertical electric water heater according to claim 1 and 2, is characterized in that, described control method comprises quick using state, in described quick using state, all stops heating without primary heater during water and secondary heater.
4. the control method of the vertical electric water heater according to any one of claim 1-3, it is characterized in that, described control method also comprises lasting using state, in described lasting using state, without during water, Vertical Heat hydrophone water temperature inside is remained on design temperature t.
5. the control method of vertical electric water heater according to claim 4, it is characterized in that, in described lasting using state, the control method of described vertical electric water heater also comprises: when using water, if vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, then disconnects secondary heater and open primary heater.
6. the control method of the vertical electric water heater according to any one of claim 1-5, is characterized in that, described control method comprises quick using state and lasting using state,
In described quick using state, if without water, then primary heater and secondary heater all stop heating; In described lasting using state, if without water, Vertical Heat hydrophone water temperature inside is remained on design temperature t,
Wherein, under quick using state, if the water temperature of described vertical electric water heater internal upper part continues maintenance and is not less than the first preset temperature t1 and vertical electric water heater maintenance water state within the scheduled time, then enter lasting using state.
7. the control method of vertical electric water heater according to claim 2, it is characterized in that, if the design temperature of described vertical electric water heater is t, then described first preset temperature t1=t+a, and described second preset temperature t2=t-b, wherein, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.
8. the control method of vertical electric water heater according to claim 1, it is characterized in that, the detection method of described water state comprises: detect described vertical electric water heater internal upper part water temperature T s, if the temperature of vertical electric water heater internal upper part water temperature T s decline per minute is not less than predetermined temperature difference, then judges that described vertical electric water heater is in and use water state.
9. the control method of vertical electric water heater according to claim 9, it is characterized in that, the test point of described vertical electric water heater internal upper part water temperature T s is multiple, in multiple described test point, the temperature of decline per minute is at least partially not less than predetermined temperature difference, then judge that described vertical electric water heater is in water state, described predetermined temperature difference is in the scope of 1 DEG C to 3 DEG C.
10. the control method of a vertical electric water heater, primary heater and secondary heater is provided with in described vertical electric water heater, described primary heater is located at the bottom in described vertical electric water heater, and described secondary heater is located at the top of described vertical electric water heater, described primary heater and described secondary heater connection control device independently of each other, it is characterized in that, the control method of described vertical electric water heater comprises:
Step 1, start vertical electric water heater, the design temperature of described vertical electric water heater is t,
Step 2, continues detect vertical electric water heater water temperature inside and whether use water:
If without water, be then incubated to t by least one heating vertical electric water heater water temperature inside in primary heater and secondary heater,
If with water, then detect vertical electric water heater internal upper part water temperature T s, when vertical electric water heater internal upper part water temperature T s is not less than the first preset temperature t1, primary heater heats separately, do not heat higher than primary heater during the second preset temperature t2 and secondary heater at vertical electric water heater internal upper part water temperature T s simultaneously, when vertical electric water heater internal upper part water temperature T s is between the first preset temperature t1 and the second preset temperature t2, secondary heater heats separately
Wherein, described first preset temperature t1=t+a, described second preset temperature t2=t-b, a value in the scope of 4 DEG C to 10 DEG C, described b value in the scope of 2 DEG C to 6 DEG C.
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| CN110319573A (en) * | 2018-03-28 | 2019-10-11 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its heating means |
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