CN206626821U - Water-heater system - Google Patents
Water-heater system Download PDFInfo
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- CN206626821U CN206626821U CN201720336429.7U CN201720336429U CN206626821U CN 206626821 U CN206626821 U CN 206626821U CN 201720336429 U CN201720336429 U CN 201720336429U CN 206626821 U CN206626821 U CN 206626821U
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Abstract
The utility model discloses a kind of water-heater system, including：Water temperature regulation device, it has hot water end and cold water end；Water heater, its cold water pipeline for including being connected with the cold water end of water temperature regulation device, the hot water line being connected with the hot water end of water temperature regulation device, heating unit and the control unit being connected with heating unit, control unit are also communicated with water temperature regulation device；Flow detection unit, it is used for the cold water flow for the cold water pipeline for detecting water heater, and it is communicated with control unit so that cold water flow is sent to control unit；Wherein, open at control unit hot water end of delay preset time control water temperature regulation device after cold water flow is more than first flow threshold value, so as to control water temperature regulation device according to the real data of water-heater system, short time high temperature having one's hair waved is avoided the occurrence of to the situation of user, improve the security performance of system, system erroneous judgement can be avoided to cause abnormal output hot water simultaneously, improve control accuracy.
Description
Technical field
Household electrical appliance technical field is the utility model is related to, more particularly to a kind of water-heater system.
Background technology
With the improvement of living standards, functional requirement of the user to household electrical appliance is more and more, and Household shower bath generally makes
Use electric heater.User is needed to adjust water temperature manually during the use of electric heater, in the related art, user is generally logical
Cross and water temperature regulation device (such as thermostatic valve) is voluntarily installed to carry out thermostatic control, to improve the convenience used.It is but related
Technology has the drawback that, characteristic of the thermostatic valve that user voluntarily installs to water heater in itself has no related, therefore, utilizes hot water
The speed that device system carries out thermostatic control is solely dependent upon the parameter of valve body in itself, and the effect of regulating thermostatic temperature is poor, due to heat
The hot water temperature of hydrophone can reach 80 DEG C, once short time high temperature water occurs in water side, easily causes user's scald, influences what is used
Security.
Therefore, correlation technique needs to be improved.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of water-heater system with new purpose, the system can avoid the occurrence of short time high temperature having one's hair waved to the feelings of user
Condition, improve the security performance of system.
To reach above-mentioned purpose, the utility model proposes a kind of water-heater system, including：Water temperature regulation device, it is described
Water temperature regulation device has hot water end and cold water end；Water heater, the water heater include the cold water with the water temperature regulation device
Hold the cold water pipeline being connected, the hot water line being connected with the hot water end of the water temperature regulation device, heating unit and with adding
The connected control unit of hot cell, described control unit are also communicated with the water temperature regulation device；Flow detection unit, institute
State the cold water flow that flow detection unit is used to detect the cold water pipeline of the water heater, the flow detection unit and the control
Unit communication processed is so that the cold water flow is sent to described control unit；Wherein, described control unit is in the cold water flow
Open at the hot water end for controlling the water temperature regulation device more than the preset time that is delayed after first flow threshold value.
According to the utility model proposes water-heater system, water temperature regulation device has a hot water end and cold water end, and control is single
Member is communicated with water temperature regulation device, and flow detection unit detects the cold water flow of the cold water pipeline of water heater, and by cold water
Flow is sent to control unit, control unit delay preset time control water temperature after cold water flow is more than first flow threshold value
The hot water end of adjusting means is opened, and so as to control water temperature regulation device according to the real data of water-heater system, is avoided out
Existing short time high temperature having one's hair waved improves the security performance of system, while system erroneous judgement can be avoided to cause exception to the situation of user
Hot water is exported, improves control accuracy.
Further, described control unit controls the lower water temperature when the cold water flow is less than second flow threshold value
The hot water end of device is closed.
Further, the second flow threshold value is more than or equal to the first flow threshold value.
Further, the water-heater system also includes：Temperature detecting unit, the temperature detecting unit are used to detect institute
State the leaving water temperature of the water side of water temperature regulation device, the temperature detecting unit communicated with described control unit with by it is described go out
Coolant-temperature gage is sent to described control unit, described in described control unit controls when the leaving water temperature is less than target leaving water temperature
The hot water flow increase at the hot water end of water temperature regulation device, until the leaving water temperature reaches the target leaving water temperature.
Preferably, the water temperature regulation device includes thermostatic valve.
Brief description of the drawings
Fig. 1 is the block diagram according to the water-heater system of the utility model embodiment；
Fig. 2 is the block diagram according to the water-heater system of the utility model one embodiment；
Fig. 3 is the structural representation according to the water-heater system of the utility model one embodiment；
Fig. 4 is the flow chart according to the control method of the water-heater system of the utility model embodiment；And
Fig. 5 is the flow chart according to the control method of the water-heater system of one specific embodiment of the utility model.
Reference：
Water temperature regulation device 10, water heater 20 and flow detection unit 30；
Cold water pipeline 40, hot water line 50, heating unit 60 and control unit 70；
Temperature detecting unit 80.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Below with reference to the accompanying drawings the water-heater system of the utility model embodiment and its control method described.
Fig. 1 is the block diagram according to the water-heater system of the utility model embodiment.As shown in figure 1, water heater system
System includes：Water temperature regulation device 10, water heater 20 and flow detection unit 30.
Wherein, water temperature regulation device 10 has hot water end B and cold water end A；Water heater 20 includes and water temperature regulation device 10
Cold water end A be connected cold water pipeline 40, be connected with the hot water end B of water temperature regulation device 10 hot water line 50, heating
Unit 60 and the control unit 70 being connected with heating unit 60, control unit 70 are also communicated with water temperature regulation device 10；Stream
Amount detection unit 30 is used for the cold water flow for detecting the cold water pipeline 40 of water heater 20, flow detection unit 30 and control unit 70
Communicate so that cold water flow is sent to control unit 70；Wherein, control unit 70 is more than first flow threshold value (example in cold water flow
Such as 2L/min) after delay preset time (such as 2s) control water temperature regulation device 10 hot water end B open.
According to one embodiment of the present utility model, water temperature regulation device 10 includes thermostatic valve.Wherein, thermostatic valve can be electricity
Control thermostatic valve.
Specifically, in one embodiment of the present utility model, control unit 70 can respectively with water temperature regulation device 10
Radio communication is carried out with flow detection unit 30, such as can be communicated by wireless communication technologys such as WIFI, bluetooths, to obtain
The cold water flow that flow detection unit 30 detects, and control water temperature regulation device 10 to be turned on and off according to cold water flow.Or
Person, the control unit 70 of water heater 20 can be joined directly together with water temperature regulation device 10 and flow detection unit 30 respectively, to obtain
The cold water flow that flow detection unit 30 detects, and control water temperature regulation device 10 to be turned on and off according to cold water flow.
According to one embodiment of the present utility model, as shown in figure 3, flow detection unit 30 may be provided at cold water pipeline 40
In to detect the cold water flow of the cold water pipeline 40 of water heater 20, wherein, flow detection unit 30 may include water flow sensing unit, control
Unit 70 processed obtains the cold water flow of cold water pipeline 40 in real time, and is more than preset flow threshold value (such as 2L/min) in cold water flow
When judge that water-heater system enters water exit mode.
More specifically, as shown in figure 3, the cold water pipeline 40 of water heater 20 includes the first cold water branch road and the second cold water branch
Road, the cold water end A of thermostatic valve are connected with the first cold water branch road of water heater 20, permanent to receive the cold water of the offer of cold water pipeline 40
The hot water end B of warm valve is connected with the hot water line 50 of water heater 20, to receive the hot water of the offer of hot water line 50.Flow detection list
The detection cold water flow in real time of member 30, when the cold water flow that flow detection unit 30 detects is less than first flow threshold value (such as 2L/
When min), control unit 70 controls water temperature regulation device 10 to close, to avoid the hot water in water heater 20 from flowing out；Work as flow detection
The cold water flow that unit 30 detects be more than first flow threshold value (such as 2L/min) and duration reach preset time (such as
When 2s), control unit 70 controls water temperature regulation device 10 to open, and cold water and hot water is mixed so that leaving water temperature by
Step reaches target leaving water temperature.
After the start of water heater 20, control unit 70 first initializes cold water flow data, and controls water temperature regulation device
10 hot water end B is closed.When carrying out bathing using water heater 20, cold water injects water heater 20, heat by the second cold water branch road
Hydrophone 20 is heated by heating unit 60 to cold water, and the hot water after heating is delivered into thermostatic valve by hot water line 50
Hot water end B, flow detection unit 30 detects the cold water flow of the cold water pipeline 40 of water heater 20 in real time, and cold water flow is sent out
Control unit 70 is delivered to, control unit 70 judges whether cold water flow is more than first flow threshold value (such as 2L/min).It is if cold
Water-carrying capacity is less than first flow threshold value (such as 2L/min), and control unit 70 then controls the hot water end B of thermostatic valve to remain turned-off, with
The hot water in water heater 20 is avoided to flow out；If cold water flow is more than first flow threshold value such as 2L/min, control unit 70 is then
Control water heater 20 enters delay state, and now, control unit 70 controls the hot water end B of thermostatic valve to continue to close.When delay
Between when reaching preset time, illustrate that the cold water flow of cold water pipeline 40 is in stable state, now, control unit 70 controls constant temperature
The hot water end B of valve is opened.And then the cold water end A and hot water end B of the regulating thermostatic valve of control unit 70 water inlet ratio, and to cold
Water and hot water are mixed, so that leaving water temperature progressively reaches target leaving water temperature.
Further, second flow is less than in cold water flow according to one embodiment of the present utility model, control unit 70
The hot water end B of water temperature regulation device 10 is controlled to close during threshold value (such as 2L/min).
According to one embodiment of the present utility model, second flow threshold value is more than or equal to first flow threshold value.
Specifically, when carrying out bathing using water heater 20, flow detection unit 30 detects the cold of water heater 20 in real time
The cold water flow of water lines 40, and cold water flow is sent to control unit 70, control unit 70 judges whether cold water flow is small
In second flow threshold value (such as 2L/min), if cold water flow is less than second flow threshold value (such as 2L/min), control unit
The hot water end B quick closedowns of 70 control water temperature regulation devices 10；If cold water flow is more than or equal to second flow threshold value
(such as 2L/min), control unit 70 then control the hot water end B of water temperature regulation device 10 to keep it turned on.
Thus, hot water end of the water-heater system of the utility model embodiment according to cold water flow to water temperature regulation device 10
B carries out delays time to control, and the hot water end B quick closedowns of water temperature regulation device 10 are controlled when cold water flow is too low, in water heater
20 moments being turned on or off, short time high temperature having one's hair waved can be avoided the occurrence of to the situation of user.
According to one embodiment of the present utility model, as shown in Fig. 2 water-heater system also includes：Temperature detecting unit 80,
Temperature detecting unit 80 is used for the leaving water temperature for detecting the water side C of water temperature regulation device 10, temperature detecting unit 80 and control
Unit 70 communicates so that leaving water temperature is sent to control unit 70, and control unit 70 is when leaving water temperature is less than target leaving water temperature
The hot water end B of water temperature regulation device 10 hot water flow increase is controlled, until leaving water temperature reaches target leaving water temperature.
It should be noted that target leaving water temperature can be such as 40 DEG C of the leaving water temperature that user is set by control panel.
In one embodiment of the present utility model, as shown in figure 3, temperature detecting unit 80 may include temperature sensor,
Wherein, temperature sensor may be provided at the water side C of water temperature regulation device 10 to detect leaving water temperature.
Specifically, when water temperature regulation device 10 mixes to cold water and hot water, temperature detecting unit 80 is examined in real time
The water side C of water temperature regulation device 10 leaving water temperature is surveyed, and leaving water temperature is sent to control unit 70, control unit 70 and sentenced
Whether disconnected leaving water temperature is less than target leaving water temperature, if leaving water temperature is less than target leaving water temperature, control unit 70 then controls
The hot water end B of water temperature regulation device 10 hot water flow increase, such as the hot water end B of water temperature regulation device 10 valve can be increased
Aperture, to increase hot water end B water inlet ratio；If leaving water temperature reaches target leaving water temperature, control unit 70 then stops adjusting
Water temperature adjusting means 10, so that the hot water end B of water temperature regulation device 10 carries out water filling according to current hot water flow, so as to logical
The cold water end A and hot water end B of water temperature regulation device 10 water inlet ratio are overregulated, leaving water temperature can be made to progressively reach target water outlet
Temperature.
As described above, the concrete operating principle of the water-heater system of the utility model embodiment is as follows.
When water heater 20 is not used in user, the cold water flow of cold water pipeline 40 is less than first flow threshold value such as 2L/
Min, control unit 70 controls the hot water end B of thermostatic valve to close, to avoid the hot water in water heater 20 from flowing out.Heat is used in user
During hydrophone 20, flow detection unit 30 detects the cold water flow of the cold water pipeline 40 of water heater 20 in real time, when cold water flow is more than
During first flow threshold value such as 2L/min, control unit 70 controls water heater 20 to enter delay state, and now, control unit 70 is controlled
The hot water end B of thermostatic valve processed continues to remain turned-off.When delay time reaches preset time, illustrate the cold water stream of cold water pipeline 40
Amount is in stable state, and now, control unit 70 controls the hot water end B of thermostatic valve to open, and cold water and hot water are mixed,
Meanwhile temperature detecting unit 80 detects the water side C of water temperature regulation device 10 leaving water temperature in real time.If leaving water temperature is less than
Target leaving water temperature, control unit 70 then control the hot water end B of water temperature regulation device 10 hot water flow to increase；If go out water temperature
Degree reaches target leaving water temperature, and control unit 70 then stops adjusting hot water flow, so as to by adjusting water temperature regulation device 10
Cold water end A and hot water end B water inlet ratio, so that leaving water temperature progressivelyes reach target leaving water temperature.When flow detection unit 30
When detecting that cold water flow is less than first flow threshold value such as 2L/min again, control unit 70 controls water temperature regulation device 10
Hot water end B quick closedowns, so as to avoid occurring the situation of short time high temperature scald user when water heater 20 is closed.
Further, according to one embodiment of the present utility model, on water heater 20 after electricity, control unit 70 is also used
In the working condition for obtaining water heater 20, and heating unit 60 is controlled to stop when water heater 20 is in upper water state or hull-borne
Only work and control the cold water end A of water temperature regulation device 10 to close.
Specifically, when using water heater 20, water heater 20 includes upper water state, hull-borne and normal condition, heat
Operation principle of the hydrophone 20 under each working condition is as follows.
First, upper water state
In first time using water heater 20 or after inner bag cleaning was carried out to water heater 20, do not have in water heater 20
Water, at this time, it may be necessary to perform water operation, to ensure there is water in water heater 20, prevent dry combustion method after electricity on water heater 20.Due in heat
Water temperature regulation device 10 is provided with water heater system, when control unit 70 judges that water heater 20 is in upper water state, control is single
Member 70 controls the cold water end A of water temperature regulation device 10 to close, and controls the hot water end B of water temperature regulation device 10 to open completely, with
And control heating unit 60 is stopped, until the operation of upper water is completed, so as to avoid water heater 20 in upper water state mistiming
Heating causes dry combustion method or other potential safety hazards.
2nd, hull-borne
When user needs to empty the hot water in water heater 20, it is necessary to drain operation be performed, due in water-heater system
Water temperature regulation device 10 is provided with, when control unit 70 judges that water heater 20 is in hull-borne, control unit 70 controls water
The cold water end A of warm adjusting means 10 is closed, and controls the hot water end B of water temperature regulation device 10 to open completely, and control heating
Unit 60 is stopped, so as to improve the speed that water heater 20 empties hot water.
3rd, normal condition
When control unit 70 judges that water heater 20 is in normal condition, control unit 70 is according to the work of water-heater system
Parameter (such as water temperature, flow) controls the cold water end A and hot water end B of water temperature regulation device 10, or directly controls lower water temperature dress
Put 10 hot water end B to close, to avoid the occurrence of short time high temperature having one's hair waved to the situation of user, ensure the water safety of user.
Thus, the water-heater system of the utility model embodiment in water heater 20 by being in upper water state or hull-borne
When control heating unit 60 be stopped, and control the cold water end A of water temperature regulation device 10 to close, can ensure that water heater is being pacified
Repacking cost without increasing extra control device, can be reduced with normal use after dress water temperature regulation device 10, meanwhile,
Water either water heater dry combustion method or other safety failures caused by heating by mistake in drainage procedure are avoided, hot water can be ensured
Device improves product competitiveness in electriferous state either water or drain operation in the execution of off-position.
Further, when water heater 20 is in normal condition, water-heater system is additionally operable to obtain the work of water-heater system
Make parameter (such as water temperature, flow etc.), and control water temperature regulation device 10 in proportion.
According to one embodiment of the present utility model, water-heater system also includes：First temperature detecting unit and the second temperature
Detection unit is spent, wherein, the first temperature detecting unit is used to detect the water temperature in water heater 20, the first temperature detecting unit and control
Unit 70 processed communicates so that the water temperature in water heater 20 is sent to control unit 70；Second temperature detection unit is used to detect hot water
The cold water water temperature of the cold water pipeline 40 of device 20, second temperature detection unit communicated with control unit 70 with by cold water water temperature send to
Control unit 70；Wherein, control unit 70 precalculates according to the water temperature in water heater 20, cold water water temperature and target output water temperature
Hot and cold water mixed proportion, and when water-heater system enters water exit mode control water temperature regulation device 10 hot water end B and cold water
End A is opened according to hot and cold water mixed proportion to adjust the hot water flow by hot water end B and the cold water flow by cold water end A.
According to one embodiment of the present utility model, the first temperature detecting unit is arranged on the top of the inner bag of water heater 20,
To detect the water temperature in water heater 20.Second temperature detection unit may be provided at the water inlet of the cold water pipeline 40 of water heater 20,
To detect cold water water temperature.
Specifically, water heater 20 first obtains the water temperature and cold water water temperature in water heater 20, and according in water heater 20
Water temperature, cold water water temperature and target output water temperature precalculate hot and cold water mixed proportion.As an example it is assumed that the first temperature detection list
Water temperature in the water heater 20 of member detection is 80 DEG C, and the cold water water temperature of second temperature detection unit detection is 20 DEG C, target water outlet
Water temperature is 40 DEG C, then the hot and cold water mixed proportion that control unit 70 precomputes is 2:1, that is, say, pass through cold water end A cold water
The ratio of flow and the hot water flow by hot water end B is 2:1.When water-heater system enters water exit mode, control unit 70
The cold water end A and hot water end B of water temperature regulation device 10 are controlled according to hot and cold water mixed proportion 2:1 opens, that is to say, that if logical
Supercooling water end (W.E.) A cold water flow is 2L/min, and it is 1L/min that control unit 70, which is then controlled by hot water end B hot water flow, with
Water side C output water temperature is set to be within the preset range of target output water temperature.
It should be noted that control unit 70 can control the cold water end A and hot water end B of water temperature regulation device 10 valve respectively
Door aperture, to adjust the flow of inlet water by cold water end A and hot water end B, so as to adjust hot and cold water mixed proportion.Or water temperature
The cold water end A of adjusting means 10 valve opening can keep constant, and control unit 70 controls hot water end B valve opening to adjust
Hot and cold water mixed proportion.
According to one embodiment of the present utility model, control unit 70 is additionally operable to the root when leaving water temperature is in stable state
According to leaving water temperature and target output water temperature adjustment hot and cold water mixed proportion, to control the hot water end B of water temperature regulation device 10 and cold
Water end (W.E.) A opens according to the hot and cold water mixed proportion after adjustment, so that leaving water temperature is maintained at target output water temperature.
Specifically, when water-heater system enters water exit mode, control unit 70 controls the cold of water temperature regulation device 10
Water end (W.E.) A and hot water end B opens according to hot and cold water mixed proportion, and temperature detecting unit 80 detects going out for water temperature regulation device 10 in real time
Water end (W.E.) C leaving water temperature, and water side C leaving water temperature is sent to control unit 70.Stable state is in leaving water temperature
When, control unit 70 is finely adjusted according to the difference of leaving water temperature and target output water temperature to hot and cold water mixed proportion, works as water outlet
When temperature is less than target output water temperature, control unit 70 controls the hot water end B of water temperature regulation device 10 hot water flow increase；When
When leaving water temperature reaches target output water temperature, control unit 70 stops regulation water temperature regulation device 10, and controls lower water temperature to fill
Put 10 hot water end B and cold water end A to open according to the hot and cold water mixed proportion after adjustment, so that leaving water temperature is maintained at target and gone out
Water water temperature.
To sum up, the water-heater system proposed according to the utility model embodiment, water temperature regulation device have hot water end and cold
Water end (W.E.), control unit are communicated with water temperature regulation device, the cold water stream of the cold water pipeline of flow detection unit detection water heater
Amount, and cold water flow is sent and is delayed after cold water flow is more than first flow threshold value default to control unit, control unit
The hot water end of time control water temperature regulation device is opened, so as to control lower water temperature according to the real data of water-heater system
Device, short time high temperature having one's hair waved is avoided the occurrence of to the situation of user, improves the security performance of system, while system can be avoided to miss
Sentencing causes abnormal output hot water, improves control accuracy.
The utility model also proposed a kind of control method of water-heater system.
Fig. 4 is the flow chart according to the control method of the water-heater system of the utility model embodiment.Water-heater system bag
Water temperature regulation device and water heater are included, water temperature regulation device has hot water end, cold water end and water side, and water heater includes and water temperature
Cold water pipeline that the cold water end of adjusting means is connected, the hot water line being connected with the hot water end of water temperature regulation device and add
Hot cell, as shown in figure 4, the control method of water-heater system comprises the following steps：
S10：Detect the cold water flow of the cold water pipeline of water heater.
S20：Water heater cold water flow be more than first flow threshold value (such as 2L/min) after be delayed preset time (such as
The hot water end of water temperature regulation device 2s) is controlled to open.
According to one embodiment of the present utility model, water temperature regulation device includes thermostatic valve.Wherein, thermostatic valve can be automatically controlled
Thermostatic valve.
Specifically, the cold water pipeline of water heater includes the first cold water branch road and the second cold water branch road, the cold water of thermostatic valve
End is connected with the first cold water branch road of water heater, to receive the cold water of cold water pipeline offer, the hot water end of thermostatic valve and water heater
Hot water line be connected, with receive hot water line offer hot water.When cold water flow is less than first flow threshold value (such as 2L/
When min), control water temperature regulation device is closed, to avoid the hot water in water heater from flowing out；When cold water flow is more than first flow threshold
Value (such as 2L/min) the and when duration reaches preset time, control water temperature regulation device is opened, and cold water and hot water are entered
Row mixing, so that leaving water temperature progressively reaches target leaving water temperature.
More specifically, after water heater start, cold water flow data are first initialized, and control the heat of water temperature regulation device
Water end (W.E.) is closed.When carrying out bathing using water heater, cold water injects water heater by the second cold water branch road, and water heater passes through heating
Unit is heated to cold water, and the hot water after heating is delivered to the hot water end of thermostatic valve by hot water line, water heater
Flow detection unit detects the cold water flow of the cold water pipeline of water heater in real time, and judges whether cold water flow is more than first flow
Threshold value (such as 2L/min).If cold water flow is less than first flow threshold value (such as 2L/min), the hot water of thermostatic valve is controlled
End remains turned-off, to avoid the hot water in water heater from flowing out；If cold water flow is more than first flow threshold value (such as 2L/min),
Then control water heater enters delay state, and now, the hot water end of control unit control thermostatic valve continues to close.When prolonging for water heater
When time when reaching preset time (such as 2s), illustrate that the cold water flow of cold water pipeline is in stable state, now, control constant temperature
Open at the hot water end of valve.And then the cold water end of regulating thermostatic valve and the water inlet ratio at hot water end, and cold water and hot water are mixed
Close, so that leaving water temperature progressively reaches target leaving water temperature.
Further, also included according to one embodiment of the present utility model, the control method of water-heater system：Water heater
The hot water end of water temperature regulation device is controlled to close when cold water flow is less than second flow threshold value (such as 2L/min).
According to one embodiment of the present utility model, second flow threshold value is more than or equal to first flow threshold value.
Specifically, when carrying out bathing using water heater 20, the flow detection unit of water heater detects water heater in real time
Cold water pipeline cold water flow, and judge whether cold water flow is less than second flow threshold value (such as 2L/min), if cold water
Flow is less than second flow threshold value (such as 2L/min), then controls the hot water end quick closedown of water temperature regulation device；If cold water
Flow is more than or equal to second flow threshold value (such as 2L/min), then controls the hot water end of water temperature regulation device to keep it turned on.
So, the water-heater system of the utility model embodiment enters according to cold water flow to the hot water end of water temperature regulation device
Line delay control, and when cold water flow is too low control water temperature regulation device the quick closedown of hot water end, water heater open or
The moment that person closes, short time high temperature having one's hair waved can be avoided the occurrence of to the situation of user.
According to one embodiment of the present utility model, sentence when cold water flow is more than preset flow threshold value (such as 2L/min)
Disconnected water-heater system enters water exit mode.
According to one embodiment of the present utility model, the control method of water-heater system also includes：Detect lower water temperature dress
The leaving water temperature for the water side put；Water heater controls the hot water of water temperature regulation device when leaving water temperature is less than target leaving water temperature
The hot water flow increase at end, until leaving water temperature reaches target leaving water temperature.
It should be noted that target leaving water temperature can be such as 40 DEG C of the leaving water temperature that user is set by control panel.
Specifically, when water temperature regulation device mixes to cold water and hot water, the temperature detecting unit of water heater is real
When detect water temperature regulation device water side leaving water temperature, and judge whether leaving water temperature is less than target leaving water temperature, if
Leaving water temperature is less than target leaving water temperature, then controls the hot water flow increase at the hot water end of water temperature regulation device, such as can increase
The valve opening at the hot water end of water temperature regulation device, to increase the water inlet ratio at hot water end；Go out if leaving water temperature reaches target
Coolant-temperature gage, then stop regulation water temperature regulation device, so that the hot water end of water temperature regulation device is carried out according to current hot water flow
Water filling, so as to by adjusting the cold water end of water temperature regulation device and the water inlet ratio at hot water end, leaving water temperature be progressivelyed reach
Target leaving water temperature.
As described above, as shown in figure 5, the control method of the water-heater system of the utility model embodiment specifically include it is following
Step.
S101：Water temperature regulation device control subprogram is performed, initializes cold water flow data, and control water temperature regulation device
Hot water end close.
S102：Detect the cold water flow of the cold water pipeline of water heater.
S103：Judge whether cold water flow is more than first flow threshold value (such as 2L/min).
If it is, perform step S104；If it is not, then perform step S111.
S104：Control water heater enters delay state, obtains delay time, and continue executing with step S105.
S105：Judge whether delay time reaches preset time (such as 2s).
If it is, perform step S106；If it is not, then perform step S104.
S106：The hot water end of water temperature regulation device is controlled to open.
S107：Detect the leaving water temperature of the water side of water temperature regulation device.
S108：Judge whether leaving water temperature is less than target leaving water temperature.
If it is, perform step S109；If it is not, then perform step S110.
S109：The hot water flow increase at the hot water end of water temperature regulation device is controlled, and performs step S103.
S110：Control water temperature regulation device to stop regulation hot water flow, and perform step S103.
S111：Exit water temperature regulation device control subprogram.
Further, according to one embodiment of the present utility model, on water heater after electricity, the control of water-heater system
Method also includes：The working condition of water heater is obtained, and control heating is single when water heater is in upper water state or hull-borne
Member is stopped and controls the cold water end A of water temperature regulation device to close.
Specifically, when using water heater, water heater includes upper water state, hull-borne and normal condition, water heater
Operation principle under each working condition is as follows.
First, upper water state
In first time using water heater or after inner bag cleaning was carried out to water heater, there is no water in water heater, now,
Need to perform water operation, to ensure to have water in water heater, prevent dry combustion method after electricity on water heater.Due to being set in water-heater system
Water temperature regulation device is equipped with, when judging that water heater is in upper water state, controls the cold water end A of water temperature regulation device to close, and
The hot water end B of control water temperature regulation device is opened completely, and control heating unit is stopped, until the operation of upper water is completed,
So as to avoid water heater from causing dry combustion method or other potential safety hazards in the heating of upper water state mistiming.
2nd, hull-borne
When user needs to empty the hot water in water heater, it is necessary to drain operation be performed, due to being set in water-heater system
Water temperature regulation device is equipped with, when judging that water heater is in hull-borne, controls the cold water end A of water temperature regulation device to close, and
The hot water end B of control water temperature regulation device is opened completely, and control heating unit is stopped, so as to improve water heater
Empty the speed of hot water.
3rd, normal condition
When judging that water heater is in normal condition, controlled according to the running parameter (such as water temperature, flow) of water-heater system
The cold water end A and hot water end B of water temperature regulation device, or directly control the hot water end B of water temperature regulation device to close, to avoid out
Existing short time high temperature having one's hair waved ensures the water safety of user to the situation of user.
Thus, the water-heater system of the utility model embodiment passes through when water heater is in upper water state or hull-borne
Control heating unit is stopped, and controls the cold water end A of water temperature regulation device to close, and water heater can be ensured in installation water temperature
Repacking cost without increasing extra control device, can be reduced with normal use after adjusting means, meanwhile, avoid
Water either water heater dry combustion method or other safety failures caused by heating by mistake in drainage procedure, can ensure water heater powered
State either water or drain operation in the execution of off-position, improve product competitiveness.
Further, according to one embodiment of the present utility model, when water heater is in normal condition, water-heater system
Control method also include：Detect the cold water water temperature of the water temperature and cold water pipeline in water heater；According to the water temperature in water heater, cold
Water water temperature and target output water temperature precalculate hot and cold water mixed proportion, and control water when water-heater system enters water exit mode
The hot water end B and cold water end A of warm adjusting means are opened according to hot and cold water mixed proportion to adjust the hot water flow by hot water end B
With the cold water flow by cold water end A.
Specifically, water heater first obtains the water temperature and cold water water temperature in water heater, and according to the water temperature in water heater, cold
Water water temperature and target output water temperature precalculate hot and cold water mixed proportion.As an example it is assumed that the water temperature in water heater is 80 DEG C,
Cold water water temperature is 20 DEG C, and target output water temperature is 40 DEG C, then the hot and cold water mixed proportion precomputed is 2:1, that is, say, pass through
The ratio of cold water end A cold water flow and the hot water flow by hot water end B is 2:1.When water-heater system enters water exit mode
When, the cold water end A and hot water end B of water temperature regulation device are controlled according to hot and cold water mixed proportion 2:1 opens, that is to say, that if
It is 2L/min by cold water end A cold water flow, then it is 1L/min to control by hot water end B hot water flow, so that water side C
Output water temperature be within the preset range of target output water temperature.
It should be noted that the cold water end A and hot water end B of water temperature regulation device valve opening can be controlled respectively, to adjust
Section passes through cold water end A and hot water end B flow of inlet water, so as to adjust hot and cold water mixed proportion.Or water temperature regulation device is cold
Water end (W.E.) A valve opening can keep constant, and control hot water end B valve opening to adjust hot and cold water mixed proportion.
According to one embodiment of the present utility model, the control method of water-heater system also includes：It is in leaving water temperature
Hot and cold water mixed proportion is adjusted according to leaving water temperature and target output water temperature during stable state, to control the heat of water temperature regulation device
Water end (W.E.) B and cold water end A opens according to the hot and cold water mixed proportion after adjustment, so that leaving water temperature is maintained at target output water temperature.
Specifically, when water-heater system enters water exit mode, cold water end A and the hot water end of water temperature regulation device are controlled
B opens according to hot and cold water mixed proportion, detects the water side C of water temperature regulation device leaving water temperature in real time.At leaving water temperature
When stable state, hot and cold water mixed proportion is finely adjusted according to the difference of leaving water temperature and target output water temperature, works as water outlet
When temperature is less than target output water temperature, the hot water end B of water temperature regulation device hot water flow increase is controlled；When leaving water temperature reaches
During target output water temperature, stop regulation water temperature regulation device, and control the hot water end B and cold water end A of water temperature regulation device according to
Hot and cold water mixed proportion after adjustment is opened, so that leaving water temperature is maintained at target output water temperature.
To sum up, the control method of the water-heater system proposed according to the utility model embodiment, water heater is detected in real time
The cold water flow of cold water pipeline, water heater delay preset time control water temperature after cold water flow is more than first flow threshold value are adjusted
The hot water end of regulating device is opened, and so as to control water temperature regulation device according to the real data of water-heater system, is avoided the occurrence of
Short time high temperature having one's hair waved improves the security performance of system, while it is abnormal defeated that system erroneous judgement can be avoided to cause to the situation of user
Go out hot water, improve control accuracy.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, limited unless otherwise clear and definite.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be 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 ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (5)
- A kind of 1. water-heater system, it is characterised in that including：Water temperature regulation device, the water temperature regulation device have hot water end and cold water end；Water heater, the water heater include the cold water pipeline being connected with the cold water end of the water temperature regulation device and the water Hot water line, heating unit and the control unit being connected with heating unit that the hot water end of warm adjusting means is connected, the control Unit processed is also communicated with the water temperature regulation device；Flow detection unit, the flow detection unit is used for the cold water flow for detecting the cold water pipeline of the water heater, described Flow detection unit is communicated with described control unit so that the cold water flow is sent to described control unit；Wherein, described control unit delay preset time after the cold water flow is more than first flow threshold value controls the water Open at the hot water end of warm adjusting means.
- 2. water-heater system according to claim 1, it is characterised in that described control unit is less than in the cold water flow The hot water end of the water temperature regulation device is controlled to close during second flow threshold value.
- 3. water-heater system according to claim 2, it is characterised in that the second flow threshold value is more than or equal to described First flow threshold value.
- 4. water-heater system according to claim 1, it is characterised in that also include：Temperature detecting unit, the temperature detecting unit are used for the leaving water temperature for detecting the water side of the water temperature regulation device, The temperature detecting unit is communicated with described control unit so that the leaving water temperature is sent to described control unit, the control Unit controls the hot water flow at the hot water end of the water temperature regulation device to increase when the leaving water temperature is less than target leaving water temperature Add, until the leaving water temperature reaches the target leaving water temperature.
- 5. water-heater system according to claim 1, it is characterised in that the water temperature regulation device includes thermostatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720336429.7U CN206626821U (en) | 2017-03-31 | 2017-03-31 | Water-heater system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720336429.7U CN206626821U (en) | 2017-03-31 | 2017-03-31 | Water-heater system |
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| Publication Number | Publication Date |
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| CN206626821U true CN206626821U (en) | 2017-11-10 |
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| CN (1) | CN206626821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662786A (en) * | 2017-03-31 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | Water-heater system and its control method |
-
2017
- 2017-03-31 CN CN201720336429.7U patent/CN206626821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662786A (en) * | 2017-03-31 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | Water-heater system and its control method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East Wuhu economic and Technological Development Zone, Wuhu, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |