CN103162414A - Water heater as well as return water system and control method thereof - Google Patents

Water heater as well as return water system and control method thereof Download PDF

Info

Publication number
CN103162414A
CN103162414A CN2011104109476A CN201110410947A CN103162414A CN 103162414 A CN103162414 A CN 103162414A CN 2011104109476 A CN2011104109476 A CN 2011104109476A CN 201110410947 A CN201110410947 A CN 201110410947A CN 103162414 A CN103162414 A CN 103162414A
Authority
CN
China
Prior art keywords
water
temperature
heater
return
pipe
Prior art date
Application number
CN2011104109476A
Other languages
Chinese (zh)
Other versions
CN103162414B (en
Inventor
李绍斌
柳飞
袁明征
李耀
温东彪
潘俊合
曹浩
李博
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Priority to CN201110410947.6A priority Critical patent/CN103162414B/en
Publication of CN103162414A publication Critical patent/CN103162414A/en
Application granted granted Critical
Publication of CN103162414B publication Critical patent/CN103162414B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The invention discloses a water heater as well as a return water system and a control method thereof. The return water system of the water heater comprises a first temperature sensing device which is used for detecting water temperature of a water supply end of the water heater, a return water device, wherein the return water device is used for controlling water in a water outlet pipe of the water heater to flow to a water inlet pipe of the water heater when the water temperature of the water supply end of the water heater is smaller than first preset temperature. The return water device is connected with the first temperature sensing device. The water heater as well as the return water system and the control method thereof can guarantee that water temperature of the water outlet pipe of the water heater is larger than the first preset temperature, so that hot water can be output to a user in real time.

Description

Water heater and return water system thereof and control method
Technical field
The present invention relates to field of water heaters, in particular to a kind of water heater and return water system and control method.
Background technology
At present the water heaters such as air energy or solar energy use following problem: water heater host and water tank installation site thereof are generally designed in positions such as balcony or roofs, water heater from reality with hot water place (bathroom) away from, when opening the hot water tap, at first must will connect water tank to drained with the cold water in the water pipe at hot water place, hot water just slowly flows through, just had hot water to use in 3---10 minute if tube connector is grown need etc., winter more so.
Take water heater shown in Figure 1 as example, this water heater comprise water tank 10 ', by refrigerant realize the heating; The outlet pipe 30 that is connected with water tank 10 ' delivery port '; The water inlet pipe 40 that is connected with water tank 10 ' water inlet '; Water inlet pipe 40 ' on be provided with check valve 60 ' and stop valve 70 '; With the running water pipe 50 of water inlet pipe 40 ' be connected '; Water heater is to for water end (W.E.) 20 ' waters supply, for water end (W.E.) 20 ' cold water pipe connect running water pipe 50 ', the outlet pipe 30 of hot-water line connection water heater '.
In this water heater, there is following problem:
When (1) user needed hot water, needs first flow to end the cold water of water heater outlet 30 ' middle existence, the pneumoelectric resource of wasting water;
(2) the waste user time, affect the convenience that water heater uses;
(3) hot water can occur sometimes hot and sometimes coldly, and the bad phenomenon such as water temperature is unstable has a strong impact on the comfortableness that air-source water heater uses.
For the heat supply immediately of water heater in correlation technique water problem, effective solution is proposed not yet at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of water heater and return water system and control method, to solve water heater heat supply immediately water problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of water heater return water system.
Water heater return water system according to the present invention comprises: the first temperature sensing device, for detection of the water temperature of water supply of water heater end; And when being used for water temperature at the water supply of water heater end less than the first preset temperature, control the water recovery apparatus that water in water heater outlet is back to the heater inleting pipe, this water recovery apparatus is connected with the first temperature sensing device.
Further, water recovery apparatus comprises: water pump is arranged in the outlet pipe of water heater; And controller, be connected respectively with the first temperature sensing device with water pump, when being used for water temperature at the water supply of water heater end less than the first preset temperature, control water pump operation so that the water in water heater outlet is back to the heater inleting pipe.
Further, the first preset temperature comprises default maximum temperature and default minimum temperature, wherein, when controller is used for water temperature at the water supply of water heater end less than minimum temperature, control water pump operation, and during greater than maximum temperature, control water pump out of service in the water temperature of water supply of water heater end.
Further, this return water system also comprises: manual operator, be connected with controller, and be used for receiving the information of user's input, and information is sent to controller.
Further, manual operator comprises: the first acceptance division, be used for to receive the temperature parameter of user's input, and with temperature parameter as the first preset temperature; Display part is used for showing the first preset temperature; And first sending part, be used for the first preset temperature is sent to controller.
Further, display part also is used for showing the water temperature for water end (W.E.).
Further, manual operator comprises: the second acceptance division is used for receiving the pressure backwater order of user's input; And second sending part, be used for forcing the backwater order to be sent to controller, wherein, controller also is used for receiving when forcing the backwater order, the control water pump operation.
Further, manual operator comprises: the 3rd acceptance division is used for receiving the supercharging order of user's input; And the 3rd sending part, be used for the supercharging order is sent to controller, return water system also comprises: the first valve, when the first valve is positioned at primary importance, water in water heater outlet is back to the heater inleting pipe, when the first valve is positioned at the second place, and the current direction water supply of water heater end in water heater outlet, controller also is used for controlling the first valve and being arranged in the second place and controlling water pump operation so that the current direction water supply of water heater end of water heater outlet when receiving the supercharging order.
Further, this return water system also comprises: the second temperature sensing device is connected with controller, for detection of the temperature of water pump; When controller also is used for temperature at water pump less than the second preset temperature, control water pump operation.
Further, this return water system also comprises: the first return pipe; The first triple valve, first end is connected with water heater outlet, and the second end is connected with the hot-water line that supplies water end (W.E.), and the 3rd end is connected with the first end of the first return pipe; The second triple valve, first end and the second end are connected with the heater inleting pipe respectively, and the 3rd end is connected with the second end of the first return pipe; And first check valve, be arranged in the first return pipe.
Further, for water end (W.E.) have a plurality of, the second end of the first triple valve with apart from outlet pipe farthest the confession water end (W.E.) hot-water line be connected.
Further, this return water system also comprises: the second return pipe; The 3rd triple valve, first end is connected with water heater outlet, and the second end is connected with the hot-water line that supplies water end (W.E.), and the 3rd end is connected with the first end of the second return pipe; The 4th triple valve, first end is connected with running water pipe, and the second end is connected with the cold water pipe that supplies water end (W.E.), and the 3rd end is connected with the second end of the second return pipe; And second check valve, be arranged in the second return pipe.
To achieve these goals, according to an aspect of the present invention, provide a kind of water heater.
Water heater according to the present invention comprises return water system, and this return water system is any one water heater return water system provided by the invention.
To achieve these goals, according to an aspect of the present invention, provide a kind of water heater control method.
Water heater control method according to the present invention comprises: the water temperature that detects the water supply of water heater end; Judge that whether water temperature is less than the first preset temperature; And in water temperature during less than the first preset temperature, the water of controlling in water heater outlet is back to the heater inleting pipe.
Further, the first preset temperature comprises default maximum temperature and default minimum temperature, wherein, in water temperature during less than the first preset temperature, controlling water in water heater outlet is back to the heater inleting pipe and comprises: in the water temperature of water supply of water heater end during less than minimum temperature, the water of controlling in water heater outlet is back to the heater inleting pipe, and method also comprises: in the water temperature of water supply of water heater end during greater than maximum temperature, control current direction water heater in water heater outlet for water end (W.E.).
Further, before the water temperature that detects the water supply of water heater end, the method also comprises: receive the temperature parameter of user's input, and with temperature parameter as the first preset temperature; And show the first preset temperature.
Further, the method also comprises: receive the pressure backwater order of user's input; And when receiving the order of pressure backwater, the water of controlling in water heater outlet is back to the heater inleting pipe.
Further, the method also comprises: receive the supercharging order of user's input; And when receiving the supercharging order, control the current direction water supply of water heater end in water heater outlet.
By the present invention, adopt the water heater return water system that comprises following part: the first temperature sensing device, for detection of the water temperature of water supply of water heater end; And water recovery apparatus, be connected with the first temperature sensing device, when being used for water temperature at the water supply of water heater end less than the first preset temperature, the water of controlling in water heater outlet is back to the heater inleting pipe, make the water temperature in water heater outlet be guaranteed, can not solve water heater heat supply immediately water problem to the water of user's output lower than the first preset temperature, and then reach the instant effect that hot water is provided to the user.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the water heater structure schematic diagram according to correlation technique;
Fig. 2 is the water heater structure schematic diagram according to first embodiment of the invention;
Fig. 3 is the schematic diagram according to the manual operator of the embodiment of the present invention;
Fig. 4 is the water heater structure schematic diagram according to second embodiment of the invention;
Fig. 5 is the water heater structure schematic diagram according to third embodiment of the invention;
Fig. 6 is the water heater structure schematic diagram according to fourth embodiment of the invention;
Fig. 7 is the flow chart according to the water heater control method of first embodiment of the invention; And
Fig. 8 a and Fig. 8 b are the flow charts according to the water heater control method of second embodiment of the invention.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
At first, introduce the water heater that this specific embodiment provides.This water heater comprises a kind of water heater return water system, by this return water system, makes the water temperature in water heater outlet be guaranteed, thereby can be immediately for providing hot water for water end (W.E.).
Secondly, introduce the water heater return water system that above-mentioned water heater comprises, for convenience of description, the water heater return water system is attached in water heater is introduced.
Fig. 2 is the water heater structure schematic diagram according to first embodiment of the invention, as shown in Figure 2, comprises at this water heater: water tank 10, realize heating by refrigerant; The outlet pipe 30 that is connected with water tank 10 delivery ports; The water inlet pipe 40 that water tank 10 water inlets are connected; Be provided with check valve 60 and stop valve 70 on water inlet pipe 40; The running water pipe 50 that is connected with water inlet pipe 40, water heater supplies water for water end (W.E.) 23 for water end (W.E.) 22 and the 3rd for water end (W.E.) 21, second to first respectively, each cold water pipe for water end (W.E.) connects running water pipe 50, hot-water line connects the outlet pipe 30 of water heater, for example, the 3rd cold water pipe 231 for water end (W.E.) 23 connects running water pipe 50, and hot-water line 232 connects the outlet pipe 30 of water heater.
This water heater also comprises a kind of water heater return water system, and this return water system comprises: the first temperature sensing device 81, be preferably water pipe temperature-sensitive bag, and for detection of the water temperature of water supply of water heater end, namely detect water heater to the water temperature of hot water is provided for water end (W.E.); And water recovery apparatus 82, being connected with the first temperature sensing device 81, when being used for water temperature at the water supply of water heater end less than the first preset temperature, the water of controlling in water heater outlet 30 is back to heater inleting pipe 40.
Water recovery apparatus 82 comprises: water pump and controller, this controller is connected respectively with the first temperature sensing device 81 with water pump, when being used for water temperature at the water supply of water heater end less than the first preset temperature, control water pump operation so that the water in water heater outlet 30 is back to heater inleting pipe 40.Wherein, controller is provided with single-chip microcomputer, also comprises: relay drive circuit, temperature sampling circuit, memory chip circuit, nonpolarity 485 communicating circuits and master chip circuit.Relay drive circuit is used for controlling the switch of back water pump, temperature sampling circuit is used for by the first temperature sensing device 81 collecting temperatures, the memory chip circuit is used for the parameter that water heater is controlled in storage, nonpolarity 485 communicating circuits are used for communication, the master chip circuit is used for providing intelligence control system, receive other circuit module feedback informations, in each circuit module, and then control return water system according to the control logic program effect of working out.
In the process of water pump operation, if the water temperature of water supply of water heater end during more than or equal to the first preset temperature, it is out of service that controller is controlled water pump, and the current direction in water heater outlet 30 is for water end (W.E.).In addition, also can be set the maximum time of water pump operation, if when the time of water pump operation surpasses this maximum time, control water pump out of service, thereby make the water in water heater outlet 30 stop being back to the water inlet pipe 40 that is connected with water tank 10 water inlets.. by the feedback signal of temperature-sensing element on system pipeline and the control logic of control mainboard, the start and stop of water recovery apparatus water pump are carried out accurately, effectively controlled.
Preferably, the first preset temperature comprises default maximum temperature and default minimum temperature, wherein, when controller is used for water temperature at the water supply of water heater end less than minimum temperature, control water pump operation so that the water in water heater outlet 30 is back to heater inleting pipe 40, in the process that refluxes, when the water temperature of water supply of water heater end during greater than maximum temperature, the control water pump is out of service, and the water in water heater outlet 30 no longer is back to water inlet pipe 40 at this moment.
Adopt this preferred embodiment, water pump is starting operation during less than minimum temperature for the water temperature of water end (W.E.), out of service during greater than maximum temperature for the water temperature of water end (W.E.), avoided water pump repeatedly, frequent start-stop causes water pump to damage.Can set default minimum temperature according to practical operation situation simultaneously, be convenient to control the backwater time interval.
This return water system also comprises: the first return pipe 84a; The first triple valve 85a, first end is connected with water heater outlet 30, the second end is connected with each hot-water line for water end (W.E.), preferably, in order to guarantee to supply farthest the water temperature of water end (W.E.) 23, the second end of the first triple valve 85a is connected with the hot-water line 232 that supplies water end (W.E.) 23, and the 3rd end of the first triple valve 85a is connected with the first end of the first return pipe 84a; The second triple valve 86a, first end and the second end are connected with heater inleting pipe 40 respectively, and the 3rd end is connected with the second end of the first return pipe 84a; And the first check valve 87a, be arranged in the first return pipe 84a.
Wherein, the first check valve 87a is arranged at the part near first return pipe 84a the second end, and the first temperature sensing device 81 is correspondingly near the first check valve 87a, and water recovery apparatus 82 is arranged at outlet pipe 30 parts near the water outlet of water heater mouth.
The water heater that adopts this embodiment to provide, the first temperature sensing device 81 is by detecting the water temperature of the water temperature detection water supply of water heater end in the first return pipe 84a, in the temperature that detects during less than the first preset temperature, water recovery apparatus starts operation, make the water in outlet pipe 30, flow to the first return pipe 84a via the first triple valve 85a, then flow into water inlet pipe 40 via the second triple valve 86a, finally flow back to water heater and reheat, make water temperature for water end (W.E.) remain on level greater than the first preset temperature.
Preferably, as shown in Figure 2, this return water system also comprises: manual operator 83, be connected with controller in water recovery apparatus 82, and be used for receiving the information of user's input, and information is sent to controller.Manual operator in this embodiment can by the mode of function button and display screen is set, facilitate man-machine interaction.
This manual operator 83 can become integral body with the water heater body, is connected with controller in water recovery apparatus 82 by physical circuit, at water heater outer setting control panel, realizes that the user is to the control of water heater; Also can separate setting with the water heater body, be connected with controller in water recovery apparatus 82 by wireless communication mode, with the form of mobile control terminal, realize that the user is to the control of water heater.Adopt first kind of way to control reliable, adopt the second way to facilitate the user.Manual operator by above-mentioned any set-up mode, all can realize the user to the direct control of water heater, make the user that the water temperature of water heater can be set according to self needs, perhaps to time switch control of water heater etc., facilitate the user individual setting, can satisfy user's comfortableness requirement.
As shown in Figure 3, manual operator 83 comprises: the first acceptance division 831, be used for to receive the temperature parameter of user's input, and with temperature parameter as the first preset temperature; Display part 832 is used for showing the first preset temperature, also is used for showing the water temperature for water end (W.E.); And first sending part 833, be used for the first preset temperature is sent to the controller of water recovery apparatus 82.The user can arrange the first preset temperature that self needs by Extraordinary by this manual operator.
Preferably, temperature parameter comprises design temperature and sets backwater temperature difference, this moment, the first preset temperature comprised difference (being minimum temperature) and the design temperature (being maximum temperature) of design temperature and setting backwater temperature difference, controller in water recovery apparatus 82 is used for starting the backwater operation in the water temperature for water end (W.E.) less than design temperature and the difference of setting backwater temperature difference, after startup, out of service during greater than design temperature for the water temperature of water end (W.E.).The user can regulate design temperature and set the size of backwater temperature difference according to self needs, can prevent the water recovery apparatus repeatedly starting and stopping on the one hand, on the other hand, has reached the purpose that the user controls water recovery apparatus interval start-up time voluntarily.
Preferably, manual operator 83 also comprises: the second acceptance division 834 is used for receiving the pressure backwater order of user's input; And second sending part 835, be used for forcing the backwater order to be sent to the controller of water recovery apparatus 82, wherein, controller also is used for receiving when forcing the backwater order, the control water pump operation.The user can manually control water heater by this manual operator and carry out backwater.
Bring in from water supply, it is slow hydraulic pressure usually can appear to cause not supplying water to bring out water in actual use procedure, in order to address this problem, preferably, as shown in Figure 2, return water system also comprises: the first valve 88a, have two positions, when being positioned at primary importance, the water in water heater outlet 30 is back to heater inleting pipe 40, when being positioned at the second place, the current direction water supply of water heater end in water heater outlet 30; Manual operator 83 also comprises the 3rd acceptance division 836, be used for receiving the supercharging order of user's input, the 3rd sending part 837, be used for the supercharging order is sent to the controller of water recovery apparatus 82, controller is controlled the first valve 88a and is positioned at the second place and controls water pump operation after receiving this supercharging order, increases the pressure of water heater outlet 30, make water Rapid Flow in water heater outlet 30 to the water supply of water heater end, be user-friendly to.
If the user is water not for a long time, water pump in water recovery apparatus may be in the running status of start-stop repeatedly, for energy efficient, switch element is set in water recovery apparatus, by this switch element, the user can open or close the operation of water recovery apparatus immediately, but also time opening or close the operation of water recovery apparatus, the user friendly energy of having saved simultaneously.
If the user is water not for a long time; when perhaps break down in water-heater water tank inside, under the lower environment of temperature, freezing the breaking down of water pump possibility; in order to prevent that this fault from occuring; preferably, this return water system also comprises: the second temperature sensing device (not shown), for detection of the temperature of water pump; controller is in the temperature of water pump during less than the second preset temperature; control water pump operation, adopt this preferred embodiment, can realize the anti-frost protection function of water pump.
Fig. 4 is the water heater structure schematic diagram according to second embodiment of the invention, water heater shown in this figure and water heater structure shown in Figure 2 are basic identical, and difference is that water pipe temperature-sensitive bag 81, water recovery apparatus 82 are different with the setting position of check valve 87a in return water system.Consider that manual operator 83 connects the routing problem of water recovery apparatus 82 with physical circuit, and the routing problem of water recovery apparatus 82 connecting water pipe temperature-sensitive bags 81, Fig. 2 is different from embodiment emphasis shown in Figure 4.
In the embodiment shown in Figure 2, the first return pipe 84a is caused the water inlet pipe 40 of water tank for the hot-water line 232 of water end (W.E.) 23 from distal-most end by two triple valves, water recovery apparatus 82 is installed on water tank hot water outlet pipe 30, check valve 87a is installed on the first return pipe 84a near before the threeway of water tank inlet, namely is installed near the second triple valve 86a.This mounting means can avoid water recovery apparatus 82 connecting water pipe temperature-sensitive bag 81 connecting lines long, deducted the problem that installation process need be considered water pipe temperature-sensitive bag 81 cablings, still, needs to consider the routing problem of manual operator 83.
In the embodiment shown in fig. 4, water recovery apparatus 82 and water pipe temperature-sensitive bag 81 are installed on distal-most end simultaneously for water end (W.E.) 23 places, as the position such as in bathroom, furred ceiling.This mounting means has not only been avoided the problem of the long and cabling of water pipe temperature-sensitive bag 81 connecting lines, and has facilitated the cabling of manual operator 83.
Fig. 5 is the water heater structure schematic diagram according to third embodiment of the invention, as shown in Figure 5, comprises at this water heater: water tank 10; Outlet pipe 30; Water inlet pipe 40; Check valve 60; Stop valve 70; Running water pipe 50; First supplies water end (W.E.) 23 for water end (W.E.) 21, second for water end (W.E.) 22 and the 3rd, wherein, the 3rd has cold water pipe 231 and hot-water line 232 for water end (W.E.) 23, and the annexation of above-mentioned each parts is identical with annexation embodiment illustrated in fig. 2, above have a detailed description, no longer repeat herein.
This water heater also comprises a kind of water heater return water system, and this return water system comprises: the first temperature sensing device 81 (being preferably water pipe temperature-sensitive bag); And water recovery apparatus 82, be connected with the first temperature sensing device 81, wherein, water recovery apparatus 82 comprises water pump and controller, the function of above-mentioned each parts is identical with function embodiment illustrated in fig. 2, above has a detailed description, and no longer repeats herein.
This return water system also comprises: the second return pipe 84b; The 3rd triple valve 85b, first end is connected with water heater outlet 30, the second end is connected with each hot-water line for water end (W.E.), preferably, in order to guarantee to supply farthest the water temperature of water end (W.E.) 23, the second end of the 3rd triple valve 85b is connected with the hot-water line 232 that supplies water end (W.E.) 23, and the 3rd end of the 3rd triple valve 85b is connected with the first end of the second return pipe 84b; The 4th triple valve 86b, first end is connected with running water pipe 50, and the second end is connected with the cold water pipe that supplies water end (W.E.), and the 3rd end is connected with the second end of the second return pipe 84b; And the second check valve 87b, be arranged in the second return pipe 84b.
The water heater that adopts this embodiment to provide, the first temperature sensing device 81 is by detecting the water temperature of the water temperature detection water supply of water heater end in the second return pipe 84b, in the temperature that detects during less than the first preset temperature, water recovery apparatus 82 starts operation, make the water in outlet pipe 30 flow to the second return pipe 84b via three triple valve 85b, flow into running water pipe 50 via the 4th triple valve 86b again, there is again running water pipe 50 finally to flow back to water heater via stop valve 70 and check valve 60 and reheats, make water temperature for water end (W.E.) remain on level greater than the first preset temperature.
In this embodiment,, and be connected by triple valve respectively between the second return pipe 84b and hot water pipe for increasing the second shorter return pipe 84b between the hot water pipe of water end (W.E.) 23 farthest, being provided with check valve on the second return pipe 84b can realize.Water heater return water system shown in Figure 5 is compared with water heater return water system shown in Figure 2, and the pipeline during backwater is not only the second return pipe 84b, simultaneously by running water pipe flow back to water-heater water tank, saved Master Cost and the mounting cost of return pipe.
Preferably, as shown in Figure 5, this return water system also comprises: manual operator 83, be connected with controller in water recovery apparatus 82, and be used for receiving the information of user's input, and information is sent to controller.Identical with embodiment shown in Figure 2, this manual operator 83 can become integral body with the water heater body, also can separate setting with the water heater body.
But, there is following problem in this mode: during backwater circulation and after backwater circulation, the cold water that running water pipe from water tank 10 water inlets to the 4th triple valve 86b that supplies farthest water end (W.E.) 23 is 50 li can slowly all become hot water, only have the hot water in this pipeline section is emitted just can use cold water afterwards, can impact user's comfort.
Fig. 6 is the water heater structure schematic diagram according to fourth embodiment of the invention, as shown in Figure 6, water heater shown in this figure and water heater structure shown in Figure 5 are basic identical, and difference is that water pipe temperature-sensitive bag 81, water recovery apparatus 82 are different with the setting position of the second check valve 87b in return water system.Fig. 5 is different from embodiment emphasis shown in Figure 6.
In the embodiment shown in fig. 5, water pipe temperature-sensitive bag 81 is arranged in the second return pipe 84b, and water recovery apparatus 82 is arranged at the outlet pipe 30 near water-heater water tank delivery port position, and manual operator 83 is arranged on the side near water recovery apparatus 82 and water tank 10.This mounting means facilitates water pump to a plurality of water end (W.E.) pressurized water supplies that supply, but needs to consider the routing problem of water pipe temperature-sensitive bag 81 and water recovery apparatus 82
In the embodiment shown in fig. 6, water recovery apparatus 82 and water pipe temperature-sensitive bag 81 are loaded on together with check valve 87b and supply farthest near water end (W.E.).This mounting means has equally also been avoided the problem of the long and cabling of water pipe temperature-sensitive bag connecting line, has also facilitated the cabling of manual operator, but be not easy to water pump to a plurality of for the water end (W.E.) pressurized water supplies.
The water heater return water system that adopts this specific embodiment to provide, the mounting means flexibility and reliability, make for the hot water that is always in the water end (W.E.) hot water pipeline after preheating, need put ducted cold water when so not only having avoided each water, and guaranteed the comfortableness that immediately has hot water to use, reached water saving, when joint and comfortable purpose.Further, by manual operator is set, the user can directly control the temperature threshold values of water heater and return water system, intuitive display, be simple and easy to, user-friendly.Further, the user can realize forcing backwater and function of increasing pressure by manual operator, has increased user's comfortableness.
At last, introduce the water heater control method that this specific embodiment provides.
Fig. 7 is the flow chart according to the water heater control method of first embodiment of the invention, and as shown in Figure 7, the method comprises the steps that S102 is to step S106:
Step S102: detect the water temperature of water supply of water heater end, namely detect water heater to the water temperature of hot water is provided for water end (W.E.), can water pipe temperature-sensitive bag be set on the pipeline that hot water is provided for water end (W.E.) at water heater and realize this detecting step.
Step S104: whether judge water temperature less than the first preset temperature, in water temperature during less than the first preset temperature, execution in step S106, otherwise return to step S102, this determining step can be realized by the control chip or the controller that are arranged in water heater.
Step S106: the water of controlling in water heater outlet is back to the heater inleting pipe.
In this embodiment, detect in real time the water temperature of water supply of water heater end, the water temperature of assure feed water end is not less than the first preset temperature, can avoid the user to need first the cold water in pipeline to be drained when using hot water immediately for the user provides hot water, has saved water resource.
Preferably, before the water temperature that detects the water supply of water heater end, the method also comprises: receive the temperature parameter of user's input, and with temperature parameter as the first preset temperature; And show the first preset temperature, and adopting this preferred embodiment, the user can arrange the first preset temperature according to self needs.
Preferably, the method also comprises: receive the pressure backwater order of user's input; And when receiving the order of pressure backwater, the water of controlling in water heater outlet is back to the heater inleting pipe.Adopt this preferred embodiment, the user carries out backwater by can manually controlling water heater.
The user hydraulic pressure usually can occur not and causes supplying water that to bring out water slow in the actual used water process, and preferably, the method also comprises: receive the supercharging order of user's input; And when receiving the supercharging order, control the current direction water supply of water heater end in water heater outlet, and adopt this preferred embodiment, increase water heater hydraulic pressure, make water Rapid Flow in water heater to the water supply of water heater end, be user-friendly to.
Fig. 8 a and Fig. 8 b are the flow charts according to the water heater control method of second embodiment of the invention; as shown in Fig. 8 a and Fig. 8 b; this embodiment provides three kinds of controlling run patterns: automatic water-returning pattern, timing backwater pattern and manual backwater pattern are provided with the anti-frost protection function simultaneously.
The concrete control logic step of automatic water-returning pattern is:
Step 1: water recovery apparatus enters open state, and selecting operational mode is the automatic water-returning pattern, and wherein, device dispatches from the factory, and to give tacit consent to operational mode be the automatic water-returning pattern;
Step 2: detect distal-most end water spot conduit temperature Th;
Step 3: judge that whether this conduit temperature Th is less than the design temperature T of user by manual operator If, at Th less than T IfThe time, execution in step five, otherwise enter step 4;
Step 4: the water pump standby, out of service;
Step 5: judge that whether Th is less than T IfDeduct the poor of backwater temperature difference Δ T, at Th less than (T If-Δ T) time, enter step 6, otherwise enter step 7, wherein, Δ T can be set by the user, in 1-10 ℃ of scope, and 5 ℃ of the acquiescences of dispatching from the factory;
Δ T is set as the buffering area that a return water temperature is controlled, and can avoid the frequent starting of water recovery apparatus, and the user also can by regulating the size of Δ T, reach the purpose in the time interval of controlling the water recovery apparatus startup.
Step 6: starting mode of pump enters the backwater operation, and continues to carry out above-mentioned steps two to step 5.Water pump arrive under the automatic water-returning state water pump after maximum running time water pump out of service, preferably, this maximum is set as 10 minutes running time, this value can be set flexibly.If occur timing in water recovery apparatus automatic water-returning process or manually boot water recovery apparatus, water pump operation time zero clearing transfers corresponding mode operation to.
Step 7: water pump keeps current running status constant.
Regularly the concrete control logic step of backwater pattern is:
Step 1: water recovery apparatus enters open state, and preference pattern is regularly the backwater pattern;
Step 2: judge whether the current time is user's configuration switch machine time period, in the timing section, enters step 3 as the current time, otherwise, enter step 4, wherein, the user can set corresponding set temperature T in 0-10 group switching on and shutting down time period and each time period If
Step 3: according to aforementioned automatic water-returning mode control logic step operation;
Step 4: the water recovery apparatus water pump enters holding state.
Manually the concrete control logic step of backwater pattern is:
Step 1: water recovery apparatus enters open state, and preference pattern is manual backwater pattern;
Step 2: judgement receives the duration of " RUN " function key enabling signal, if continue time of reception less than default duration 5s, enters step 3, as no, enters step 6;
Step 3: detect distal-most end with water spot conduit temperature Th, judge that whether Th is less than T If, in this way, enter step 4, as no, enter step 5;
Step 4: the starting mode of pump operation, and continue to judge whether to satisfy the water pump stop condition, being specially, Th is more than or equal to T If, or water pump arrive under normal condition maximum 10 minutes running times or again receive " RUN " function key signal and continue duration less than setting judgement duration 5s, in this way, enter step 5, as no, water pump continues operation, and continues to judge whether to satisfy above condition;
Step 5: water pump is out of service, and water recovery apparatus withdraws from " RUN " function key control model, returns to former operational mode (automatic water-returning pattern or timing backwater pattern) and moves by this operational mode control logic;
Step 6: enter the backwater pattern of forcing, the starting mode of pump operation is not more than the 30 minutes maximum running times (under pressure backwater state, can set flexibly maximum running time) that set when forcing backwater running time; If again receive " RUN " function key signal greater than setting judgement duration 5s, water recovery apparatus withdraws from forces the backwater pattern, returns to former operational mode (automatic water-returning pattern or timing backwater pattern) also by this operational mode control logic operation.
The concrete control logic of anti-frost protection function is:
Step 1: after water recovery apparatus enters power-up state, detect water pump temperature Tp and conduit temperature Th;
Step 2: judge whether water recovery apparatus satisfies anti-frost protection function on condition, is specially, the water pump temperature Tp is less than or equal to default antifreeze temperature T Antifreeze(T AntifreezeStart 4 ℃ of the judgment value of anti-frost protection function setting for water recovery apparatus), or 30s detects conduit temperature Th and is less than or equal to T continuously Antifreeze, in this way, enter step 3, as no, enter step 8;
Step 3: the starting mode of pump operation, manual operator shows " antifreeze ";
Step 4: whether judge the water pump temperature Tp more than or equal to T1, (T1 is the first judgment value that water recovery apparatus finishes the anti-frost protection function, preferably, this judgment value is decided to be 8 ℃), in this way, enter step 5, as no, water pump continues operation and continues to detect the water pump temperature Tp;
Step 5: whether judge conduit temperature Th more than or equal to T2, (T2 is that water recovery apparatus finishes the second judgment value that the anti-frost protection function sets, and preferably, this judgment value is decided to be 20 ℃) in this way, enters step 6, as no, enters step 7;
Step 6: water pump is out of service, and manual operator withdraws from antifreeze state, after this continues to detect water pump temperature Tp and conduit temperature Th;
Step 7: the water pump continuous service, arrive to force under the backwater state water pump after maximum running time water pump out of service, preferably, this maximum is set as 10 minutes running time, this value can be set flexibly, continues to continue to detect water pump temperature Tp and conduit temperature Th; If occur in the antifreeze running of water recovery apparatus automatically, regularly or manually boot water recovery apparatus, water pump operation time zero clearing, water pump does not stop, and transfers corresponding mode operation to;
Step 8: water pump is by selected operational mode control logic operation.
Adopt this embodiment; be provided with three kinds of operational modes for user's choice for use; the difference that satisfies different user requires and water habits; realize the personalized water heater of controlling; be provided with simultaneously the anti-frost protection function; the antifreeze function operation of always remaining valid, guaranteed the safe operation of backwater control system and water heater unit under the different operational modes of water recovery apparatus.
According to the embodiment of above-described water heater and water heater control method, the operation interface of manual operator can adopt following mode to arrange:
Temperature, backwater temperature difference, time switch time and the current running status that the water temperature that the current temperature sensing device of display screen partial display detects, user are set (comprise automatically, manually, regularly or anti-freezing pattern);
The order receiving area receives the order of user's input, realizes that user and water heater are controlled mutual.
As can be seen from the above description, the present invention has realized following technique effect: guarantee the water temperature in water heater outlet, the effect of hot water can be provided to the user immediately.Further, by manual operator is set, the user can arrange Extraordinary water heater control mode, is user-friendly to, and improves comfortableness.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (18)

1. a water heater return water system, is characterized in that, comprising:
The first temperature sensing device is for detection of the water temperature of water supply of water heater end; And
When being used for water temperature at described water supply of water heater end less than the first preset temperature, control the water recovery apparatus that water in the outlet pipe of described water heater is back to the water inlet pipe of described water heater, described water recovery apparatus is connected with described the first temperature sensing device.
2. return water system according to claim 1, is characterized in that, described water recovery apparatus comprises:
Water pump is arranged in the outlet pipe of described water heater; And
Controller, be connected respectively with described the first temperature sensing device with described water pump, when being used for water temperature at described water supply of water heater end less than described the first preset temperature, control described water pump operation so that the water in described water heater outlet is back to described heater inleting pipe.
3. return water system according to claim 2, it is characterized in that, described the first preset temperature comprises default maximum temperature and default minimum temperature, wherein, when described controller is used for water temperature at described water supply of water heater end less than described minimum temperature, control described water pump operation, and during greater than described maximum temperature, control described water pump out of service in the water temperature of described water supply of water heater end.
4. return water system according to claim 2, is characterized in that, also comprises:
Manual operator is connected with described controller, is used for receiving the information of user's input, and described information is sent to described controller.
5. return water system according to claim 4, is characterized in that, described manual operator comprises:
The first acceptance division be used for to receive the temperature parameter of user's input, and with described temperature parameter as described the first preset temperature;
Display part is used for showing described the first preset temperature; And
The first sending part is used for described the first preset temperature is sent to described controller.
6. return water system according to claim 5, is characterized in that, described display part also is used for showing described water temperature for water end (W.E.).
7. return water system according to claim 4, is characterized in that, described manual operator comprises:
The second acceptance division is used for receiving the pressure backwater order of user's input; And
The second sending part is used for the order of described pressure backwater is sent to described controller,
Wherein, described controller also is used for controlling described water pump operation when receiving described pressure backwater order.
8. return water system according to claim 4, is characterized in that, described manual operator comprises:
The 3rd acceptance division is used for receiving the supercharging order of user's input; And
The 3rd sending part is used for described supercharging order is sent to described controller,
Described return water system also comprises: the first valve, when described the first valve was positioned at primary importance, the water in described water heater outlet was back to described heater inleting pipe, when described the first valve is positioned at the second place, the described water supply of water heater end of current direction in described water heater outlet
Described controller also is used for controlling described the first valve and being arranged in the described second place and controlling described water pump operation so that the described water supply of water heater end of the current direction of described water heater outlet when receiving described supercharging order.
9. return water system according to claim 2, is characterized in that, also comprises:
The second temperature sensing device is connected with described controller, for detection of the temperature of described water pump;
When described controller also is used for temperature at described water pump less than the second preset temperature, control described water pump operation.
10. the described return water system of any one according to claim 1 to 9, is characterized in that, also comprises:
The first return pipe;
The first triple valve, first end is connected with described water heater outlet, and the second end is connected with described hot-water line for water end (W.E.), and the 3rd end is connected with the first end of described the first return pipe;
The second triple valve, first end and the second end are connected with described heater inleting pipe respectively, and the 3rd end is connected with the second end of described the first return pipe; And
The first check valve is arranged in described the first return pipe.
11. return water system according to claim 10 is characterized in that, described confession water end (W.E.) has a plurality of, and the second end of described the first triple valve is connected with the described outlet pipe of the distance hot-water line for water end (W.E.) farthest.
12. according to claim 1 to 9, the described return water system of any one, is characterized in that, also comprises:
The second return pipe;
The 3rd triple valve, first end is connected with described water heater outlet, and the second end is connected with described hot-water line for water end (W.E.), and the 3rd end is connected with the first end of described the second return pipe;
The 4th triple valve, first end is connected with running water pipe, and the second end is connected with described cold water pipe for water end (W.E.), and the 3rd end is connected with the second end of described the second return pipe; And
The second check valve is arranged in described the second return pipe.
13. a water heater is characterized in that, comprises return water system, described return water system is the described water heater return water system of any one in claim 1 to 12.
14. a water heater control method is characterized in that, comprising:
Detect the water temperature of water supply of water heater end;
Judge that whether described water temperature is less than the first preset temperature; And
During less than described the first preset temperature, the water of controlling in described water heater outlet is back to described heater inleting pipe in described water temperature.
15. control method according to claim 14 is characterized in that, described the first preset temperature comprises default maximum temperature and default minimum temperature, wherein,
In described water temperature during less than described the first preset temperature, controlling water in described water heater outlet is back to described heater inleting pipe and comprises: during less than described minimum temperature, the water of controlling in described water heater outlet is back to described heater inleting pipe in the water temperature of described water supply of water heater end;
Described method also comprises: during greater than described maximum temperature, the water of controlling in described water heater outlet stops being back to described heater inleting pipe in the water temperature of described water supply of water heater end.
16. control method according to claim 14 is characterized in that, before the water temperature that detects described water supply of water heater end, described method also comprises:
Receive the temperature parameter of user's input, and with described temperature parameter as described the first preset temperature; And
Show described the first preset temperature.
17. control method according to claim 14 is characterized in that, also comprises:
Receive the pressure backwater order of user's input; And
When receiving described pressure backwater order, the water of controlling in described water heater outlet is back to described heater inleting pipe.
18. control method according to claim 14 is characterized in that, also comprises:
Receive the supercharging order of user's input; And
When receiving described supercharging order, control the described water supply of water heater end of current direction in described water heater outlet.
CN201110410947.6A 2011-12-09 2011-12-09 Water heater and return water system thereof and control method Active CN103162414B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110410947.6A CN103162414B (en) 2011-12-09 2011-12-09 Water heater and return water system thereof and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110410947.6A CN103162414B (en) 2011-12-09 2011-12-09 Water heater and return water system thereof and control method

Publications (2)

Publication Number Publication Date
CN103162414A true CN103162414A (en) 2013-06-19
CN103162414B CN103162414B (en) 2015-09-23

Family

ID=48585727

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110410947.6A Active CN103162414B (en) 2011-12-09 2011-12-09 Water heater and return water system thereof and control method

Country Status (1)

Country Link
CN (1) CN103162414B (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104697177A (en) * 2015-02-09 2015-06-10 芜湖美的厨卫电器制造有限公司 Water heater as well as control method and control system thereof
CN104879927A (en) * 2015-06-25 2015-09-02 广东美的暖通设备有限公司 Water return control method and device of heat pump water heater
CN105157236A (en) * 2015-07-22 2015-12-16 珠海格力电器股份有限公司 Water heater water returning control method
CN106052143A (en) * 2016-07-18 2016-10-26 芜湖美的厨卫电器制造有限公司 Water heater system and preheating control method thereof
CN106440383A (en) * 2016-10-20 2017-02-22 赵阳 Water consuming controller and intelligent water heater water supply system
CN106766231A (en) * 2017-03-07 2017-05-31 郑州职业技术学院 Shower system and its control method without cold water and Recovery of the hot water
CN106766230A (en) * 2017-02-22 2017-05-31 合肥美的暖通设备有限公司 Water heater, water heater return water system and its control method and device
CN106940089A (en) * 2016-01-05 2017-07-11 青岛经济技术开发区海尔热水器有限公司 Water heater and its control method
CN107131652A (en) * 2017-04-28 2017-09-05 江苏大学 A kind of general ejector type hot-water heating system water saving fixtures
CN104633945B (en) * 2015-01-30 2018-01-02 芜湖美的厨卫电器制造有限公司 The control method and system and gas heater of gas heater
CN107741095A (en) * 2017-09-21 2018-02-27 珠海优特物联科技有限公司 The control method and device of water recovery apparatus
CN107966966A (en) * 2017-11-20 2018-04-27 上海斐讯数据通信技术有限公司 A kind of management of the use of water control method and system based on water quality detection
CN110017531A (en) * 2019-04-10 2019-07-16 刘萍萍 A kind of home-use hot water line's water recovery apparatus
CN111397205A (en) * 2019-01-02 2020-07-10 芜湖美的厨卫电器制造有限公司 Gas furnace control method and device and computer storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198640A (en) * 1982-05-14 1983-11-18 Matsushita Electric Ind Co Ltd Control device for supplying and heating hot-water
CN101315207A (en) * 2008-06-17 2008-12-03 广东万家乐燃气具有限公司 Automatic control pre-heating central water supply system of gas burning water heater
CN201163105Y (en) * 2008-01-10 2008-12-10 广东万和集团有限公司 Constant-temperature fast water heater of external circulating water pump
CN202002326U (en) * 2011-03-22 2011-10-05 谷华峰 Novel water economizer for water heater system
CN202328801U (en) * 2011-12-09 2012-07-11 珠海格力电器股份有限公司 Water heater and water return system thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198640A (en) * 1982-05-14 1983-11-18 Matsushita Electric Ind Co Ltd Control device for supplying and heating hot-water
CN201163105Y (en) * 2008-01-10 2008-12-10 广东万和集团有限公司 Constant-temperature fast water heater of external circulating water pump
CN101315207A (en) * 2008-06-17 2008-12-03 广东万家乐燃气具有限公司 Automatic control pre-heating central water supply system of gas burning water heater
CN202002326U (en) * 2011-03-22 2011-10-05 谷华峰 Novel water economizer for water heater system
CN202328801U (en) * 2011-12-09 2012-07-11 珠海格力电器股份有限公司 Water heater and water return system thereof

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633945B (en) * 2015-01-30 2018-01-02 芜湖美的厨卫电器制造有限公司 The control method and system and gas heater of gas heater
CN104697177A (en) * 2015-02-09 2015-06-10 芜湖美的厨卫电器制造有限公司 Water heater as well as control method and control system thereof
CN104879927A (en) * 2015-06-25 2015-09-02 广东美的暖通设备有限公司 Water return control method and device of heat pump water heater
CN105157236B (en) * 2015-07-22 2018-10-09 珠海格力电器股份有限公司 Water heater backwater control method
CN105157236A (en) * 2015-07-22 2015-12-16 珠海格力电器股份有限公司 Water heater water returning control method
CN106940089A (en) * 2016-01-05 2017-07-11 青岛经济技术开发区海尔热水器有限公司 Water heater and its control method
CN106052143A (en) * 2016-07-18 2016-10-26 芜湖美的厨卫电器制造有限公司 Water heater system and preheating control method thereof
CN106052143B (en) * 2016-07-18 2018-12-21 芜湖美的厨卫电器制造有限公司 Water-heater system and its preheating control method
CN106440383B (en) * 2016-10-20 2017-06-23 赵阳 With water controller and intelligent water heater water system
CN106440383A (en) * 2016-10-20 2017-02-22 赵阳 Water consuming controller and intelligent water heater water supply system
CN106766230A (en) * 2017-02-22 2017-05-31 合肥美的暖通设备有限公司 Water heater, water heater return water system and its control method and device
CN106766231A (en) * 2017-03-07 2017-05-31 郑州职业技术学院 Shower system and its control method without cold water and Recovery of the hot water
CN106766231B (en) * 2017-03-07 2019-04-16 郑州职业技术学院 Shower system and its control method without cold water and Recovery of the hot water
CN107131652A (en) * 2017-04-28 2017-09-05 江苏大学 A kind of general ejector type hot-water heating system water saving fixtures
CN107741095A (en) * 2017-09-21 2018-02-27 珠海优特物联科技有限公司 The control method and device of water recovery apparatus
CN107966966A (en) * 2017-11-20 2018-04-27 上海斐讯数据通信技术有限公司 A kind of management of the use of water control method and system based on water quality detection
CN111397205A (en) * 2019-01-02 2020-07-10 芜湖美的厨卫电器制造有限公司 Gas furnace control method and device and computer storage medium
CN110017531A (en) * 2019-04-10 2019-07-16 刘萍萍 A kind of home-use hot water line's water recovery apparatus

Also Published As

Publication number Publication date
CN103162414B (en) 2015-09-23

Similar Documents

Publication Publication Date Title
US5351712A (en) Hot water recovery system
CN102046891B (en) Flow control device and flow control method
US9810449B2 (en) Methods and apparatus for heating air with hot water
US20110305444A1 (en) Water heating system and a method of operating same
US20100096018A1 (en) Instant hot water delivery system
CN103542534B (en) The control method of Teat pump boiler, control device and Teat pump boiler
CN102235754B (en) Constant-temperature water outlet control device and method
CN102444988B (en) Water path switching control module and switching control method for water heaters
KR101393121B1 (en) Storage type hot water supply device
CN102353148B (en) Water flow control system and method of household water heater
CN103277924B (en) System and method for intelligent hot water circulation control and domestic solar water heater
JP4513754B2 (en) Hybrid hot water supply system
CN202254399U (en) Control device for hot water supply by solar water heater and electric water heater or gas water heater
EP3367004A1 (en) Heat source device
CN104697177A (en) Water heater as well as control method and control system thereof
CN109737605B (en) Zero-cold-water preheating device for gas heating water heater and control method thereof
CN103277877A (en) Energy-saving control system and method for air conditioner
CN104697197B (en) Solar water heater controls device
CN201327115Y (en) Integrated central hot water system
CN106500342B (en) A kind of hot water circuit control system with immediate thermal function
ES2409082B1 (en) Water pass interruption system in water consumption facilities.
CN102444983A (en) Device and method for hot water circulation based on instant water heater
TW200944726A (en) Hot water providing method and hot water system
CN206191879U (en) Zero cold water gas heater and system thereof
CN108317727A (en) The antifreeze control method of water heater and its water circuit system, controller and storage medium

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model