CN104110856A - Water heater system - Google Patents
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- CN104110856A CN104110856A CN201410340188.4A CN201410340188A CN104110856A CN 104110856 A CN104110856 A CN 104110856A CN 201410340188 A CN201410340188 A CN 201410340188A CN 104110856 A CN104110856 A CN 104110856A
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Abstract
The invention discloses a water heater system. The water heater system comprises a water heater component, a water inlet tube, a water outlet tube, a control valve, a water pump and a controller. The water heater component is provided with water inlets and water outlets. The water inlet tube is fittingly connected with a water source, is provided with cold water outlets and is connected with water inlets. The water outlet tube is provided with hot water outlets and is connected with the water outlets. The control valve is serially connected between the water outlet tube and the water inlet tube to enable water in the water outlet tube to flow into the water inlet tube unidirectionally. The water pump is parallelly connected onto the water inlet tube so as to pump water in the water inlet tube into the water heater component. The controller is electrically connected with the water heater component and the water pump respectively so as to control operations of the two. The water heater system has the advantages that a water return function is realized, the water in the water heater system can be heated circularly, hot water can be utilized at any water usage point, pipeline paving is simple, cost is low, energy waste can be avoided, and a function of instant heating during water utilization can be realized.
Description
Technical field
The present invention relates to field of household appliances, especially relate to a kind of water-heater system.
Background technology
In the actual use of water heater, with being connected with one section of pipeline between water spot and firing equipment, during for a long time without hot water, the water in this pipeline changes cold water into.In the time that needs use hot water, user cannot use hot water immediately, the shortlyest need to wait for several seconds and just can use hot water.
Summary of the invention
The present invention is intended at least solve the technical problem existing in prior art.For this reason, the object of the present invention is to provide a kind of water-heater system, this water-heater system can heat the water in the pipeline with between water spot and water heater, and can realize instant-heating.
According to the water-heater system of the embodiment of the present invention, comprising: water heater components, described water heater components has water inlet and delivery port; Be suitable for being connected with water source and have the water inlet pipe of cooling water outlet, one end of described water inlet pipe is connected with described water inlet; Have the outlet pipe of hot water outlet, one end of described outlet pipe is connected with described delivery port; Control valve, described control valve is connected between the other end of described outlet pipe and the other end of described water inlet pipe so that the described water inlet pipe of the unidirectional inflow of water in described outlet pipe; Water pump, described water pump is connected in parallel on described water inlet pipe so that the water in described water inlet pipe is pumped in described water heater components; Controller, described controller is electrically connected to control respectively respectively the operation of described water heater components and described water pump with described water heater components and described water pump.
According to the water-heater system of the embodiment of the present invention, by be arranged in parallel water pump on water inlet pipe, and the control valve of connecting between water inlet pipe and outlet pipe is so that the water single flow direction water inlet pipe in outlet pipe, thereby make water-heater system there is water return function, water heating capable of circulation in water-heater system, and make all can use hot water with water spot arbitrarily.And water-heater system pipe laying is simple, cost is not high.By controller being set to control the operation of water heater components and water pump, can improve the harmony of water-heater system operation, avoid energy waste, and the function of instant-heating can realize water time.
In addition, also can there is following additional technical feature according to water-heater system of the present invention:
In some embodiments of the invention, water-heater system also comprises the first check valve, and described the first check valve and described water pump are connected in series and are connected in parallel on described water inlet pipe.Thus, can avoid the aqueous reflux in water pump to cause water pump to damage, thereby extend the service life of water pump.In addition, can avoid the current direction water pump in water heater components, thereby ensure the normal operation of water-heater system.
Further, water-heater system also comprises the second check valve, described the second check valve series connection be located at described water inlet pipe be suitable for the port that is connected with described water source with at described water source to one-way conduction in the direction of described water inlet pipe.Thus, can avoid the water after heating in water inlet pipe to flow out from water source port, thereby reduce the energy consumption of water-heater system.
In some embodiments of the invention, described water heater components comprises: gas heater, and described gas heater has the first water inlet and the first delivery port, and described water inlet pipe is connected with described the first water inlet; Electric heater, described electric heater has the second water inlet and the second delivery port, and described the second water inlet is connected with described the first delivery port, and described the second delivery port is connected with described outlet pipe.Wherein, gas heater heating rapidly, can realize fast supply hot water.And the heat production water yield of electric heater is large, can meet a large amount of waters of user, and electric heater has water tank with retaining, therefore the water preheat in water-heater system completes and stops after circulation, hot water major part in water-heater system is stored in electric heater, run off thereby reduce heat, further to reduce energy consumption.
Particularly, water-heater system also comprises relief valve, and described relief valve is connected between described the first delivery port and described the second water inlet.Thus, can ensure that in electric heater, hydraulic pressure is suitable, to ensure the normal operation of water-heater system.
Further, water-heater system also comprises the first temperature measurement one for detection of water temperature, described the first temperature measurement one is located on described water heater components or described outlet pipe, and described controller is electrically connected with opening and cutting out according to water pump described in the testing result control of described the first temperature measurement one with described the first temperature measurement one.Thus, the water temperature that hot water outlet flows out can be determined, thus the controllability of raising water temperature.
Alternatively, described the first temperature measurement one is located at described the first water outlet.Thus, can shorten the length of connection line, be convenient to trace arrangements.
Further, water-heater system also comprises the second temperature measurement one for detection of the water temperature in described electric heater, and described controller is electrically connected with opening and cutting out according to electric heater described in the testing result control of described the second temperature measurement one with described the second temperature measurement one.
Alternatively, described control valve is check valve.Thus, the cost of control valve is lower, installs easily.
Advantageously, described controller is provided with the water return function key of the operation for controlling described water pump and described water heater components.Thus, user at any time section uses when hot water, all can be by pressing water return function key so that the water heating capable of circulation in water-heater system, thereby realize whole day heat supply, instant-heating.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the structural representation of the water-heater system of the embodiment of the present invention.
Reference numeral:
Water-heater system 100,
Water heater components 1, water inlet A, water outlet B, gas heater 11, the first water inlet 11A, the first delivery port 11B, electric heater 12, the second water inlet 12A, the second delivery port 12B,
Water inlet pipe 3, cooling water outlet 31, water source port 32,
Outlet pipe 4, hot water outlet 41,
Control valve 51, water pump 52,
The first check valve 53, the second check valve 54, relief valve 55,
Water source 200.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
Describe according to the water-heater system 100 of the embodiment of the present invention below with reference to Fig. 1.
According to the water-heater system 100 of the embodiment of the present invention, as shown in Figure 1, comprising: water heater components 1, water inlet pipe 3, outlet pipe 4, control valve 51, water pump 52 and controller.
Wherein, water heater components 1 has water inlet A and water outlet B, and water inlet pipe 3 is suitable for being connected with water source 200 and having cooling water outlet 31, and one end of water inlet pipe 3 is connected with water inlet A, and outlet pipe 4 has hot water outlet 41, and one end of outlet pipe 4 is connected with water outlet B.
Here, water source 200 can be from municipal water supply, and water inlet pipe 3 is provided with water source port 32, and water source port 32 is connected with water source 200 with the heating of supplying water to water heater components 1, and the water after water heater components 1 heating can flow out by outlet pipe 4.It should be noted that, the water that the cooling water outlet 31 on water inlet pipe 3 flows out is generally normal-temperature water, and the water that the hot water outlet 41 on outlet pipe 4 flows out is generally the hot water after water heater components 1 heating.Cooling water outlet 31 and hot water outlet 41 can be located in bathroom or kitchen, as in the example depicted in fig. 1, cooling water outlet 31 and hot water outlet 41 are respectively multiple, and multiple cooling water outlets 31 are located at respectively washbowl and shower place, and multiple hot water outlets 41 are also located at respectively washbowl and shower place.Certainly, the invention is not restricted to this, the setting position of cooling water outlet 31 and hot water outlet 41 is determined by practical situations, does not do concrete restriction here.
With reference to Fig. 1, control valve 51 is connected between the other end of outlet pipe 4 and the other end of water inlet pipe 3 so that the unidirectional inflow water inlet pipe 3 of water in outlet pipe 4, water pump 52 is connected in parallel on water inlet pipe 3 so that the water in water inlet pipe 3 is pumped in water heater components 1, and controller is electrically connected to control respectively respectively the operation of water heater components 1 and water pump 52 with water heater components 1 and water pump 52.
That is to say, water inlet pipe 3 is connected by control valve 51 with outlet pipe 4, and under the driving effect of water pump 52, the water in outlet pipe 4 can flow to water inlet pipe 3 by control valve 51, then flows in water heater components 1 with heating by water inlet pipe 3.Thus, water-heater system 100 has water return function, the water heating capable of circulation in water-heater system 100.By control valve 51 being set to be connected in series in water inlet pipe 3 and outlet pipe 4, make the water in outlet pipe 4 can single flow direction water inlet pipe 3, avoid the return pipe that water is directed to water heater components 1 is set in addition on outlet pipe 4, thereby greatly reduce the cost of water-heater system 100.
Here it should be noted that, current water-heater system scarcely possesses water return function, before water heater starts, water in outlet pipe is generally normal-temperature water and cannot be heated, and water heater water after startup a period of time just can be heated to the temperature needing, make during this period of time, the coolant-temperature gage of discharging from hot water outlet is not high.When user need to use hot water, for example, when user needs bathing, common way is hot water outlet to be opened to sky put, until the temperature of water flowing out from hot water outlet is just used suitable.Therefore, according to the water-heater system 100 of the embodiment of the present invention, by being provided with water return function, reduce water consumption greatly, and can improve the convenience of user's water.
Alternatively, control valve 51 is located at least favorable water spot place, and here, least favorable refers to from water heater components 1 to each with the resistance to water-flow maximum of water spot with water spot, least favorable be generally with water spot between water heater components 1 connecting pipe the longest use water spot.For example in the example depicted in fig. 1, water-heater system 100 is provided with four with water spot, water inlet pipe 3 is provided with respectively a cooling water outlet 31 at four with water spot place, is also provided with four corresponding hot water outlets 41 on outlet pipe 4, control valve 51 be located at apart from water heater components 1 farthest use water spot place.Because the water in water-heater system 100 can be realized circulating-heating, therefore, in the time that hot water outlet 41 is far away apart from water heater components 1, the temperature of the water that this hot water outlet 41 flows out also can reach preference temperature.
By controller being set to control the operation of water heater components 1 and water pump 52, can improve the harmony that water heater components 1 and water pump 52 move, avoid energy waste.For example, under the control of controller, water pump 52 can start heating or start after water heater components 1 heats a period of time in water heater components 1, and after the temperature of the water that hot water outlet 41 flows out is suitable, it is out of service that controller can be controlled water pump 52.
And, controller controlled heat water producer assembly 1 is set and water pump 52 moves in setting-up time, producer or user can be according to set of time multiple preheating time of the sections of the daily use hot water of people, water heater components 1 and water pump 52 are moved within a predetermined period of time, thereby make user can obtain at once in use hot water, reach the object of instant-heating.For example, people are interior bathing during this period of time in 9 o'clock to ten one at night conventionally, therefore section preheating time on controller can be set to from point eight thirty to ten one of evening, water heater components 1 and water pump 52 are brought into operation at night eight thirty, thereby user can obtain immediately hot water in the time of evening on the same day 9 bathings.
Alternatively, on controller, can be provided with water return function key, water return function key is for controlling the operation of water pump 52 and water heater components 1, thus, when user's section use at any time hot water, all can be by pressing water return function key so that the water heating capable of circulation in water-heater system 100, thereby realize whole day heat supply, instant-heating.
According to the water-heater system 100 of the embodiment of the present invention, by be arranged in parallel water pump 52 on water inlet pipe 3, and the control valve 51 of connecting between water inlet pipe 3 and outlet pipe 4 is so that the water single flow direction water inlet pipe 3 in outlet pipe 4, thereby make water-heater system 100 there is water return function, water heating capable of circulation in water-heater system 100, and make all can use hot water with water spot arbitrarily.And water-heater system 100 pipe laying are simple, cost is not high.By controller being set to control the operation of water heater components 1 and water pump 52, can improve the harmony that water-heater system 100 moves, avoid energy waste, and the function of instant-heating can realize water time.
In some embodiments of the invention, as shown in Figure 1, water-heater system 100 also comprises the first check valve 53, the first check valve 53 is connected in series and is connected in parallel on water inlet pipe 3 with water pump 52, wherein, the water that the first check valve 53 can pump water pump 52 is unidirectional to water heater components 1, thus, can avoid the aqueous reflux in water pump 52 to cause water pump 52 to damage, thereby extend the service life of water pump 52.In addition, water pump 52 can produce certain low pressure time out of service, water pump 52 can be absorbed water from the one end that connects water heater components 1, and the setting of the first check valve 53 can be avoided the current direction water pump 52 in water heater components 1, thereby ensures the normal operation of water-heater system 100.
Further, as shown in Figure 1, water-heater system 100 also comprises the second check valve 54, the second check valve 54 series connection is located at the port that is connected with water source 200 of being suitable for of water inlet pipe 3, that is to say, the second check valve 54 is located at water source port 32 places of water inlet pipe 3, the second check valve 54 at water source 200 to one-way conduction in the direction of water inlet pipe 3.Thus, can avoid the water after the interior heating of water inlet pipe 3 to flow out from water source port 32, thereby reduce the energy consumption of water-heater system 100.
Alternatively, control valve 51 is check valve.Thus, the cost of control valve 51 is lower, installs easily.Certainly, the invention is not restricted to this, for example, control valve 51 also can be magnetic valve, and magnetic valve is connected with controller, and in the time that water pump 52 starts, control valve 51 is opened magnetic valve, under the driving of water pump 52, and the water single flow direction water inlet pipe 3 in outlet pipe 4.
In some embodiments of the invention, water heater components 1 comprises a water heater, and this water heater is the one in electric heater 12, gas heater 11, solar water heater and air-source water heater, does not do concrete restriction here.
In other embodiment of the present invention, water heater components 1 is multiple-energy-source heat of mixing hydrophone, that is to say, water heater components 1 can comprise the water heater of various energy resources type, for example, water heater components 1 can comprise two or more in electric heater 12, gas heater 11, solar water heater and air-source water heater.
It should be noted that, above-mentioned four kinds of water heaters respectively have pluses and minuses, and therefore the applicable crowd of above-mentioned four kinds of water heaters is also different.By water heater components 1 being set to multiple-energy-source heat of mixing hydrophone, making water-heater system 100 can be suitable for the needs of different crowd, and can meet the requirement of people to energy-conserving and environment-protective.
In addition, along with the raising of people's living standard, people also improve gradually to the instructions for use of hot water, as the increase of using amount of hot water, the simultaneously increase with water spot etc. of water.Therefore, adopt the water-heater system 100 of multiple-energy-source heat of mixing hydrophone can meet user's the requirement that using amount of hot water is large, heat supply is fast.
In specific embodiments more of the present invention, as shown in Figure 1, water heater components 1 comprises gas heater 11 and electric heater 12.Gas heater 11 has the first water inlet 11A and the first delivery port 11B, and water inlet pipe 3 is connected with the first water inlet 11A, and the first water inlet 11A forms above-mentioned water inlet A.Electric heater 12 has the second water inlet 12A and the second delivery port 12B, and the second water inlet 12A is connected with the first delivery port 11B, and the second delivery port 12B is connected with outlet pipe 4, and the second delivery port 12B forms above-mentioned water outlet B.Wherein, it is interior with heating that the water in water inlet pipe 3 flows into gas heater 11, and the water in gas heater 11 can flow into the interior heating of electric heater 12 and flow into outlet pipe 4 from the second delivery port 12B.
That is to say, water-heater system 100 is the electric complementary type hot-water heating system of combustion, and wherein, gas heater 11 heating rapidly, can realize fast supply hot water.And the heat production water yield of electric heater 12 is large, can meet a large amount of waters of user, and electric heater 12 has water tank with retaining, therefore the water preheat in water-heater system 100 completes and stops after circulation, hot water major part in water-heater system 100 is stored in electric heater 12, run off thereby reduce heat, further to reduce energy consumption.
Particularly, as shown in Figure 1, water-heater system 100 also comprises relief valve 55, and relief valve 55 is connected between the first delivery port 11B and the second water inlet 12A.Thus, can ensure that the interior hydraulic pressure of electric heater 12 is suitable, to ensure the normal operation of water-heater system 100.More specifically, relief valve 55 is located at the second water inlet 12A place.
Alternatively, controller can comprise the first sub-controller and the second sub-controller, and wherein, the first sub-controller is electrically connected to control opening and closing of water pump 52 with water pump 52.The second sub-controller can be located on electric heater to control the operation of electric heater.
In a specific embodiment of the present invention, the length of the running time of water pump 52 can be set by controller, that is to say, at controller after 1 operation of scheduled time point control water pump 52 and water heater components, through setting-up time, controller control water pump 52 is out of service, and be fixed value the running time of water pump 52.The factors such as the speed that here, this setting-up time is heated by the water yield in hot water temperature, the water-heater system 100 of needs and water heater components 1 determine.
In another specific embodiment of the present invention, water-heater system 100 also comprises the first temperature measurement one (scheming not shown) for detection of water temperature, the first temperature measurement one is located on water heater components 1 or outlet pipe 4, and controller is electrically connected with the first temperature measurement one with opening and cutting out according to the testing result control water pump 52 of the first temperature measurement one.When the water temperature that the first temperature measurement one detects reaches after the first predetermined value, controller control water pump 52 is out of service, makes the water in water-heater system 100 stop circulating-heating.Thus, the water temperature that hot water outlet 41 flows out can be determined, thus the controllability of raising water temperature.
Here, the large I of the first predetermined value arranges by controller, and producer or user can arrange the first predetermined value according to actual user demand.It should be noted that, the big or small setting of the first predetermined value, while making controller control water pump 52 out of service, water heater components 1 still can continue constant temperature water supply.
Alternatively, the first temperature measurement one is located at the first delivery port 11B place.Here, the first temperature measurement one is connected with the first sub-controller, in the time that the first temperature measurement one is located at the first delivery port 11B place, the first sub-controller can be close to the first temperature measurement one and water pump 52 arranges, thereby shorten the length of the connection line between the first temperature measurement one and the first controller, the first controller and water pump 52, be convenient to trace arrangements.Certainly, the first temperature measurement one also can be located on outlet pipe 4, and the first temperature measurement one even can be located at hot water outlet 41 places, does not do concrete restriction here.
Further, water-heater system 100 also comprises the second temperature measurement one (scheming not shown) for detection of the water temperature in electric heater 12, and controller is electrically connected with the second temperature measurement one with opening and cutting out according to the testing result control electric heater 12 of the second temperature measurement one.
After gas heater 11 starts, water temperature in the second temperature measurement one detects electric heater 12 is during lower than the second predetermined value, controller control electric heater 12 starts, and gas heater 11 and electric heater 12 is heated simultaneously, so that the temperature of the water in water-heater system 100 rises rapidly.Afterwards, when the water temperature in the second temperature measurement one detects electric heater 12 reaches the second predetermined value, controller control electric heater 12 is out of service.Here the water temperature in the electric heater 12 when the water temperature that, outlet pipe 4 is discharged meets user's instructions for use is the second predetermined value.
In a concrete example of the present invention, user is in the time using hot water, municipal water supply flows to gas heater 11 by water inlet pipe 3, gas heater 11 detected current through time start immediately, and the interior water temperature of gas heater 11 slowly rises, the water after heating a period of time in gas heater 11 reaches set temperature and constant temperature output.
When arbitrary while opening hot water outlet 41 with water spot, the hot water that gas heater 11 is exported flows into electric heater 12 from the second water inlet 12A, in the time that the second temperature measurement one detects water tank water temperature lower than the second predetermined value, electric heater 12 starts heating until water temperature reaches the second predetermined value.If when the second temperature measurement one detection water tank water temperature is more than or equal to the second predetermined value, electric heater 12 does not start, hot water directly flows out and arrives water point from the second outlet.
Set multiple preheating time when section when controller, controller can be controlled the first temperature measurement one and in section, automatically detect water temperature preheating time.When the testing result of the first temperature measurement one is during lower than the first predetermined value, controller control water pump 52 starts.Water pump 52 pumps into gas heater 11 by water and heats, and the water after heating is headed into and flows to each by outlet pipe 4 after electric heater 12 and use water spot by gas heater 11.Water in outlet pipe 4 flows back to water inlet pipe 3 with water spot place through control valve 51 in least favorable, and the water in water inlet pipe 3 flows into gas heater 11 to form circulation by water pump 52 again.In the time that the testing result of the first temperature measurement one is more than or equal to the first predetermined value, controller control water pump 52 is out of service.
In addition, the testing result of moving a period of time first temperature measurement one when water pump 52 is during always lower than the first predetermined value, and controller infers that water-heater system 100 goes wrong, and it is out of service that controller can be controlled water pump 52, and controller can be warned to user by blowing a whistle.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a water-heater system, is characterized in that, comprising:
Water heater components, described water heater components has water inlet and delivery port;
Be suitable for being connected with water source and have the water inlet pipe of cooling water outlet, one end of described water inlet pipe is connected with described water inlet;
Have the outlet pipe of hot water outlet, one end of described outlet pipe is connected with described delivery port;
Control valve, described control valve is connected between the other end of described outlet pipe and the other end of described water inlet pipe so that the described water inlet pipe of the unidirectional inflow of water in described outlet pipe;
Water pump, described water pump is connected in parallel on described water inlet pipe so that the water in described water inlet pipe is pumped in described water heater components;
Controller, described controller is electrically connected to control respectively respectively the operation of described water heater components and described water pump with described water heater components and described water pump.
2. water-heater system according to claim 1, is characterized in that, also comprises the first check valve, and described the first check valve and described water pump are connected in series and are connected in parallel on described water inlet pipe.
3. water-heater system according to claim 1, it is characterized in that, also comprise the second check valve, described the second check valve series connection be located at described water inlet pipe be suitable for the port that is connected with described water source with at described water source to one-way conduction in the direction of described water inlet pipe.
4. according to the water-heater system described in any one in claim 1-3, it is characterized in that, described water heater components comprises:
Gas heater, described gas heater has the first water inlet and the first delivery port, and described water inlet pipe is connected with described the first water inlet;
Electric heater, described electric heater has the second water inlet and the second delivery port, and described the second water inlet is connected with described the first delivery port, and described the second delivery port is connected with described outlet pipe.
5. water-heater system according to claim 4, is characterized in that, also comprises relief valve, and described relief valve is connected between described the first delivery port and described the second water inlet.
6. water-heater system according to claim 4, it is characterized in that, also comprise the first temperature measurement one for detection of water temperature, described the first temperature measurement one is located on described water heater components or described outlet pipe, and described controller is electrically connected with opening and cutting out according to water pump described in the testing result control of described the first temperature measurement one with described the first temperature measurement one.
7. water-heater system according to claim 6, is characterized in that, described the first temperature measurement one is located at described the first water outlet.
8. water-heater system according to claim 4, it is characterized in that, also comprise the second temperature measurement one for detection of the water temperature in described electric heater, described controller is electrically connected with opening and cutting out according to electric heater described in the testing result control of described the second temperature measurement one with described the second temperature measurement one.
9. water-heater system according to claim 1, is characterized in that, described control valve is check valve.
10. water-heater system according to claim 1, is characterized in that, described controller is provided with the water return function key of the operation for controlling described water pump and described water heater components.
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| CN201410340188.4A CN104110856B (en) | 2014-07-16 | 2014-07-16 | Water-heater system |
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| CN201410340188.4A CN104110856B (en) | 2014-07-16 | 2014-07-16 | Water-heater system |
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| CN104482657A (en) * | 2014-12-01 | 2015-04-01 | 芜湖美的厨卫电器制造有限公司 | Hot-water system and control method thereof |
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| CN105042869A (en) * | 2015-06-24 | 2015-11-11 | 芜湖美的厨卫电器制造有限公司 | Temperature control method for gas and power complementary hot water system |
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