CN105823221B - The water discharge control method of water heater, device and system - Google Patents
The water discharge control method of water heater, device and system Download PDFInfo
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- CN105823221B CN105823221B CN201610349691.5A CN201610349691A CN105823221B CN 105823221 B CN105823221 B CN 105823221B CN 201610349691 A CN201610349691 A CN 201610349691A CN 105823221 B CN105823221 B CN 105823221B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of water discharge control methods of water heater, device and system.Wherein, which includes: water discharge controller, in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature, generating and exporting draining control signal；Motor-driven valve is arranged in the unit water lines between the water tank of water heater and unit, under the control of draining control signal, switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel.The present invention solves in the prior art the technical issues of water heater can not carry out drain operation in time, lead to pipeline bursting by freezing in winter.
Description
Technical field
The present invention relates to water heater control field, in particular to a kind of water discharge control method of water heater, device and
System.
Background technique
Existing water heater, which usually relies on, manually carries out drain operation, and the drainage pattern is cumbersome, labor intensive
Material resources, and there is many uncontrollable factors, for example after water heater power-off, user forgets to carry out drain operation, alternatively,
Water heater has a power failure suddenly and user does not exist, and under these above situations, can not carry out drain operation to water heater in time.If in the winter
Season, water heater carried out drain operation not in time, it will the problem of pipeline bursting by freezing occurs, influences the normal use of water heater unit.
For the problem that water heater can not carry out drain operation in time in winter in the prior art, lead to pipeline bursting by freezing, mesh
It is preceding not yet to put forward effective solutions.
Summary of the invention
The embodiment of the invention provides a kind of water discharge control methods of water heater, device and system, existing at least to solve
The technical issues of water heater can not carry out drain operation in time in winter in technology, lead to pipeline bursting by freezing.
According to an aspect of an embodiment of the present invention, a kind of drainage control system of water heater is provided, the control system
It include: water discharge controller, for giving birth in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
At and export draining control signal；Motor-driven valve is arranged in the unit water lines between the water tank and unit of the water heater, uses
Under the control in the draining control signal, switch operating state, so that the unit water lines of the water heater and atmosphere shape
At drainage channel.
Further, the unit water lines include: outlet pipeline and inlet pipeline, wherein the motor-driven valve includes:
One three-way electric valve is arranged on the outlet pipeline；Second three-way electric valve is arranged on the inlet pipeline, wherein institute
Unit side interface is connected with the atmosphere as air inlet, second threeway after stating the first three-way electric valve switch operating state
Unit side interface and the atmosphere, which are connected, after motor-driven valve switch operating state becomes discharge outlet.
Further, the system also includes host controllers, are arranged on the unit, in the water heater
Unit power-off in the case where, to the water discharge controller send power-off signal.
Further, the system also includes temperature sensors；The water discharge controller, be also used to receive it is described
Start timing when power-off signal, after timing duration reaches preset duration, acquires the hot water using the temperature sensor
The outdoor environment temperature of device.
Further, the host controller is also used to after the water heater re-powers, and is controlled to the draining
Device sends power on signal；The water discharge controller is also used to after receiving the power on signal, is generated and is resetted control letter
Number；The motor-driven valve is also used under the triggering of the reseting controling signal, switch operating state, so that the water heater
Unit water lines and the water tank connect the water pipe channel to be formed when the water heater works normally.
Further, electrical storage device is built-in in the water discharge controller.
According to another aspect of an embodiment of the present invention, a kind of water discharge control method of water heater is additionally provided, the controlling party
Method includes: to generate in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature and export draining control
Signal processed；Based on the draining control signal, switch the working condition of motor-driven valve so that the water tank and unit of the water heater it
Between unit water lines and atmosphere formed drainage channel.
Further, signal is controlled based on the draining, the working condition for switching motor-driven valve includes: to control in the draining
Under the control of signal, switch the working condition of the first three-way electric valve, make the unit side interface of first three-way electric valve with
The atmosphere, which is connected, becomes air inlet；Under the control of the draining control signal, switch the work shape of the second three-way electric valve
State, connecting the unit side interface of second three-way electric valve and the atmosphere becomes discharge outlet, wherein the motor-driven valve packet
Include first three-way electric valve and second three-way electric valve.
Further, before generating and exporting draining control signal, the method also includes: in the machine of the water heater
In the case where group power-off, the power-off signal that the host controller of the unit is sent is received；When receiving the power-off signal
Start timing, and after timing duration reaches preset duration, the outdoor environment of the water heater is acquired using temperature sensor
Temperature.
Further, after the water heater re-powers, the method also includes: it is re-powered in the water heater
Later, reseting controling signal is generated；Based on the reseting controling signal, switch the working condition of the motor-driven valve, so that described
The unit water lines of water heater and the water tank connect the water pipe channel to be formed when the water heater works normally.
According to another aspect of an embodiment of the present invention, a kind of drain control unit of water heater is additionally provided, control dress
Setting includes: the first generation module, for the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Under, it generates and exports draining control signal；First switching module switches motor-driven valve for controlling signal based on the draining
Working condition, so that the unit water lines and atmosphere between the water tank and unit of the water heater form drainage channel.
Further, first switching module includes: the first switching submodule, in the draining control signal
Under control, switch the working condition of the first three-way electric valve, makes the unit side interface of first three-way electric valve and described big
Gas, which is connected, becomes air inlet；Second switching submodule, under the control of the draining control signal, switching the two or three to be powered
The working condition of dynamic valve, connecting the unit side interface of second three-way electric valve and the atmosphere becomes discharge outlet, wherein
The motor-driven valve includes first three-way electric valve and second three-way electric valve.
Further, described device further include: receiving module, for generate and export draining control signal before,
In the case where the unit power-off of the water heater, the power-off signal that the host controller of the unit is sent is received；Acquisition module,
For starting timing when receiving the power-off signal, and after timing duration reaches preset duration, temperature sensing is utilized
Device acquires the outdoor environment temperature of the water heater.
Further, described device further include: the second generation module, for giving birth to after the water heater re-powers
At reseting controling signal；Second switching module switches the work shape of the motor-driven valve for being based on the reseting controling signal
State is led to so that the unit water lines of the water heater and the water tank connect the water pipe to be formed when the water heater works normally
Road.
In embodiments of the present invention, the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Under, water discharge controller generate draining control signal, and will draining control signal export it is electronic in unit water lines to being arranged in
Valve, motor-driven valve is under the control of draining control signal, switch operating state, so that the unit water lines of water heater are formed with atmosphere
Drainage channel.Through the foregoing embodiment, in the unit power-off of water heater, the draining that can be generated by water discharge controller is controlled
Signal automatically controls motor-driven valve switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel, passes through
Whole ponding of unit internal duct can be discharged in drainage channel, thus will not cause water because outdoor environment temperature is too low
Pipe bursting by freezing solves in the prior art the problem of water heater can not carry out drain operation in time, lead to pipeline bursting by freezing in winter,
While protecting unit, the unnecessary loss of user is avoided.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of the drainage control system of water heater according to an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the drainage control system of optional water heater according to an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the water discharge control method of water heater according to an embodiment of the present invention；
Fig. 4 is a kind of flow chart of the water discharge control method of optional water heater according to an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of the drain control unit of water heater according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
Fig. 1 is a kind of schematic diagram of the drainage control system of water heater according to an embodiment of the present invention, as shown in Figure 1, should
Control system includes: water discharge controller 10 and motor-driven valve 30.
Wherein, water discharge controller 10 power off for the unit in water heater and outdoor environment temperature are lower than preset temperature
In the case of, it generates and exports draining control signal；
Motor-driven valve 30 is arranged in the unit water lines between the water tank of water heater and unit, in draining control letter
Number control under, switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel.
Using the embodiment of the present invention, the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Under, water discharge controller generate draining control signal, and will draining control signal export it is electronic in unit water lines to being arranged in
Valve, motor-driven valve is under the control of draining control signal, switch operating state, so that the unit water lines of water heater are formed with atmosphere
Drainage channel.Through the foregoing embodiment, in the unit power-off of water heater, the draining that can be generated by water discharge controller is controlled
Signal automatically controls motor-driven valve switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel, passes through
Whole ponding of unit internal duct can be discharged in drainage channel, thus will not cause water because outdoor environment temperature is too low
Pipe bursting by freezing solves in the prior art the problem of water heater can not carry out drain operation in time, lead to pipeline bursting by freezing in winter,
While protecting unit, the unnecessary loss of user is avoided.
The unit power-off of above-mentioned water heater can carry out power operation based on unit of the user to water heater and occur, or
Unit of the person based on water heater it is improper power-off and occur.
Specifically, motor-driven valve is set in the unit water lines between the water tank of water heater and unit, and is increased for controlling
Make the water discharge controller of draining.In the unit power-off of water heater and outdoor environment temperature (such as preset temperature can lower than preset temperature
Think 0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to motor-driven valve,
Motor-driven valve automatically switches working condition under the control of draining control signal, so that the unit water lines of water heater and atmosphere shape
At drainage channel, the ponding of unit internal duct is discharged by drainage channel.
In the above embodiment of the invention, unit water lines include: outlet pipeline and inlet pipeline, wherein motor-driven valve
Include: the first three-way electric valve, is arranged on outlet pipeline；Second three-way electric valve is arranged on inlet pipeline, wherein the
Unit side interface and atmosphere, which are connected, after one three-way electric valve switch operating state becomes air inlet, the second electric three-way Vavle switching work
Unit side interface is connected with atmosphere as discharge outlet after making state.
As shown in Fig. 2, the drainage control system of the water heater of above-described embodiment includes the water outlet for unit side
Pipeline and inlet pipeline, the first three-way electric valve 301 being arranged on outlet pipeline, the second threeway being arranged on inlet pipeline
Motor-driven valve 303.Wherein, there are two working conditions for above-mentioned each three-way electric valve, the first working condition: each three are powered
The interface of dynamic valve unit side and the interface of water tank side are connected, and water pipe channel when water heater works normally is formed；It works in second
State: the unit side interface and atmosphere of each three-way electric valve are connected, and air inlet or discharge outlet are formed.
Specifically, in the unit power-off of water heater and outdoor environment temperature (such as preset temperature can be lower than preset temperature
0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to the one or three and is powered
Dynamic valve and the second three-way electric valve, under the control of draining control signal, the first three-way electric valve switch operating state, the one or three
The unit side interface and atmosphere of logical motor-driven valve are connected to form air inlet, the second three-way electric valve switch operating state, the second threeway
The unit side interface and atmosphere of motor-driven valve are connected to form discharge outlet, and it is logical that the unit water lines and atmosphere of such water heater form draining
The ponding on road, unit internal duct is drained by the lower three-way electric valve in position (the second i.e. above-mentioned three-way electric valve)
Operation.
Further, in the case where the unit water lines of water heater and atmosphere form drainage channel, atmosphere is from the one or three
The unit side interface and atmosphere of logical motor-driven valve are connected the air inlet to be formed and are entered, under the action of atmospheric pressure, unit pipeline product
Water along from outlet pipeline to unit again to inlet pipeline approach flow, and from the unit side interface of the second three-way electric valve with
Atmosphere connects the discharge outlet to be formed discharge.It connects to form water heater normal functional operation in the unit water lines and water tank of water heater
When water pipe channel in the case where, cold water outside unit is injected cold water in water tank by outlet pipeline, and water tank is realized to cold water
Heating function, the hot water in water tank flowed out by inlet pipeline, provides hot water for user.
Through the foregoing embodiment, two three-way electric valves are set in unit water lines, by controlling the two three energizations
Dynamic Vavle switching working condition, so as to form the drainage channel for draining, realize to unit internal duct ponding from
Dynamic draining control, further, since in the unit water lines between unit and water tank, unit is being discharged in two three-way electric valves
While the ponding of internal duct, the water storage inside water tank can be effectively prevented and be drained off, ensure that the normal use of water heater.
As shown in Fig. 2, above system can also include: host controller 50, it is arranged on unit A, in water heater
Unit power-off in the case where, to water discharge controller send power-off signal.
Specifically, host controller is the control mainboard of water heater, carries out power operation in unit of the user to water heater,
Or in the case where the improper power-off of unit of water heater, power-off signal when unit is powered off sends control of water supply and drainage
Device.
In the above-described embodiments, by host controller, the power-off signal when unit of water heater is powered off is sent
Control of water supply and drainage device generates draining control signal for water discharge controller and provides condition, grasps to realize to the Auto-drainage of unit
Make.
As shown in Fig. 2, above system can also include: temperature sensor 70；Water discharge controller, be also used to receive it is disconnected
Start timing when electric signal, after timing duration reaches preset duration, utilizes the outdoor ring of temperature sensor acquisition water heater
Border temperature.
Above-mentioned temperature sensor is outdoor temperature sensor, for monitoring locating for water heater after unit power-off
Outdoor environment temperature.
Optionally, the improper power-off of unit of power operation or water heater is carried out in unit of the user to water heater
Afterwards, the control mainboard (i.e. above-mentioned host controller) of water heater sends power-off signal and controls to the draining of responsible control draining
Device, water discharge controller start to carry out timing after receiving power-off signal, and after timing duration reaches preset duration,
After timing to 20min, outdoor temperature sensor is begun to use to detect outdoor environment temperature, detection frequency is every point
Clock is primary, and when the outdoor environment temperature detected is lower than 0 DEG C, water discharge controller starts to control the first three-way electric valve and the
Two three-way electric valve switch operating states.
It should be noted that just carrying out outdoor environment temperature inspection after the preset duration that setting unit powers off
The reason of survey is that after water heater power-off, unit water pipe will not freeze quickly, lay equal stress on if outage problem solves soon
It newly powers on, water heater is reruned to be emptied with regard to not having to progress water pipe.Above-mentioned preset duration can be by user according to actually making
Free adjusting is carried out with environment.
Through the foregoing embodiment, after the preset duration that unit powers off, hot water just is detected using temperature sensor
Outdoor environment temperature locating for device improves user's to realize the flexible control for carrying out Auto-drainage operation to unit
Normal use experience.
In the above embodiment of the invention, host controller is also used to after water heater re-powers, and is controlled to draining
Device processed sends power on signal；Water discharge controller is also used to after receiving power on signal, generates reseting controling signal；It is electronic
Valve is also used under the triggering of reseting controling signal, switch operating state, so that the unit water lines of water heater and water tank are connected
Form water pipe channel when water heater works normally.
Specifically, after water heater re-powers, the control mainboard (i.e. above-mentioned host controller) of water heater is sent
Power on signal control of water supply and drainage device, water discharge controller reset two three-way electric valves again, make after receiving power on signal
Inlet pipeline, the outlet pipeline of water heater connect the water pipe channel to be formed when water heater works normally with water tank again.
Through the foregoing embodiment, it after water heater re-powers, under the control of water discharge controller, automatically resets two
Three-way electric valve, so that water pipe channel when water heater works normally is formed, to realize what automatic recovery water heater worked normally
Function improves user to the usage experience of water heater.
In the above embodiment of the invention, electrical storage device is built-in in water discharge controller.
In the above-described embodiments, water discharge controller is powered using independent internal battery, is not influenced by power grid power supply, in machine
Group by grid cut-off in the case where can also work normally, so as to the unit of water heater power-off and outdoor environment temperature
Degree realizes the automatic control to three-way electric valve lower than in the case where preset temperature, to effectively carry out to unit automatic
Antifreeze drain operation improves the service performance of water heater.
The above embodiment of the present invention is described in detail below with reference to Fig. 2.As shown in Fig. 2, the embodiment may include water heater
Unit A, water tank B, water discharge controller 10, the first three-way electric valve 301, the second three-way electric valve 303, host controller 50, temperature
Spend sensor 70 and outlet pipeline 20 and inlet pipeline 40 for unit side.
Specifically, there are four ports altogether for exhaust controller, including connect respectively with host controller and temperature sensor
Two signal input ports, two signal output ends being connect respectively with the first three-way electric valve and the second three-way electric valve
Mouthful.In the case where unit of the user to water heater carries out the improper power-off of unit of power operation or water heater, host control
Device processed to water discharge controller send power-off signal, water discharge controller after receiving power-off signal, start carry out timing, and
After timing duration reaches preset duration, after timing to 20min, begin to use outdoor temperature sensor to outdoor environment temperature
Degree detected, detection frequency be once every minute, and when the outdoor environment temperature detected be lower than 0 DEG C when, generate for controlling
The draining of system draining controls signal, under the control of draining control signal, the first three-way electric valve switch operating state, and the one or three
The unit side interface and atmosphere of logical motor-driven valve are connected to form air inlet, the second three-way electric valve switch operating state, the second threeway
The unit side interface and atmosphere of motor-driven valve are connected to form discharge outlet, and it is logical that the unit water lines and atmosphere of such water heater form draining
The ponding on road, unit internal duct is drained by the lower three-way electric valve in position (the second i.e. above-mentioned three-way electric valve)
Operation.
In the above-described embodiments, it may be implemented for the ponding of unit internal duct to be all discharged by drainage channel, in this way
Would not cause water pipe from freezing crack because outdoor environment temperature is too low, be effectively protected unit using safe.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the water discharge control method of water heater is provided, it should be noted that
Step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions, and
It, in some cases, can be to be different from sequence execution institute herein and although logical order is shown in flow charts
The step of showing or describing.
Fig. 3 is a kind of flow chart of the water discharge control method of water heater according to an embodiment of the present invention, as shown in figure 3, should
Method may include steps of:
Step S302 is generated simultaneously in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Output draining control signal；
Step S304 switches the working condition of motor-driven valve, so that the water tank and unit of water heater based on draining control signal
Between unit water lines and atmosphere formed drainage channel.
Using the embodiment of the present invention, the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Under, water discharge controller generate draining control signal, and will draining control signal export it is electronic in unit water lines to being arranged in
Valve, motor-driven valve is under the control of draining control signal, switch operating state, so that the unit water lines of water heater are formed with atmosphere
Drainage channel.Through the foregoing embodiment, in the unit power-off of water heater, the draining that can be generated by water discharge controller is controlled
Signal automatically controls motor-driven valve switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel, passes through
Whole ponding of unit internal duct can be discharged in drainage channel, thus will not cause water because outdoor environment temperature is too low
Pipe bursting by freezing solves in the prior art the problem of water heater can not carry out drain operation in time, lead to pipeline bursting by freezing in winter,
While protecting unit, the unnecessary loss of user is avoided.
The unit power-off of above-mentioned water heater can carry out power operation based on unit of the user to water heater and occur, or
Unit of the person based on water heater it is improper power-off and occur.
Specifically, motor-driven valve is set in the unit water lines between the water tank of water heater and unit, and is increased for controlling
Make the water discharge controller of draining.In the unit power-off of water heater and outdoor environment temperature (such as preset temperature can lower than preset temperature
Think 0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to motor-driven valve,
Motor-driven valve automatically switches working condition under the control of draining control signal, so that the unit water lines of water heater and atmosphere shape
At drainage channel, the ponding of unit internal duct is discharged by drainage channel.
In the above embodiment of the invention, based on draining control signal, the working condition for switching motor-driven valve includes: to arrange
Under the control of water management signal, switches the working condition of the first three-way electric valve, make the unit side interface of the first three-way electric valve
Connecting with atmosphere becomes air inlet；Under the control of draining control signal, switch the working condition of the second three-way electric valve, makes the
The unit side interfaces of two three-way electric valves and atmosphere, which are connected, becomes discharge outlet, wherein motor-driven valve include the first three-way electric valve and
Second three-way electric valve.
Specifically, in the unit power-off of water heater and outdoor environment temperature (such as preset temperature can be lower than preset temperature
0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to the one or three and is powered
Dynamic valve and the second three-way electric valve, under the control of draining control signal, the first three-way electric valve switch operating state, the one or three
The unit side interface and atmosphere of logical motor-driven valve are connected to form air inlet, the second three-way electric valve switch operating state, the second threeway
The unit side interface and atmosphere of motor-driven valve are connected to form discharge outlet, and it is logical that the unit water lines and atmosphere of such water heater form draining
The ponding on road, unit internal duct is drained by the lower three-way electric valve in position (the second i.e. above-mentioned three-way electric valve)
Operation.
Through the foregoing embodiment, two three-way electric valves are set in unit water lines, by controlling the two three energizations
Dynamic Vavle switching working condition, so as to form the drainage channel for draining, realize to unit internal duct ponding from
Dynamic draining control, further, since in the unit water lines between unit and water tank, unit is being discharged in two three-way electric valves
While the ponding of internal duct, the water storage inside water tank can be effectively prevented and be drained off, ensure that the normal use of water heater.
In the above embodiment of the invention, before generating and exporting draining control signal, method further include: in hot water
In the case where the unit power-off of device, the power-off signal that the host controller of unit is sent is received；It is opened when receiving power-off signal
Beginning timing, and after timing duration reaches preset duration, utilize the outdoor environment temperature of temperature sensor acquisition water heater.
Above-mentioned temperature sensor is outdoor temperature sensor, for monitoring locating for water heater after unit power-off
Outdoor environment temperature.
Optionally, the improper power-off of unit of power operation or water heater is carried out in unit of the user to water heater
Afterwards, the control mainboard (i.e. above-mentioned host controller) of water heater sends power-off signal and controls to the draining of responsible control draining
Device, water discharge controller start to carry out timing after receiving power-off signal, and after timing duration reaches preset duration,
After timing to 20min, outdoor temperature sensor is begun to use to detect outdoor environment temperature, detection frequency is every point
Clock is primary, and when the outdoor environment temperature detected is lower than 0 DEG C, water discharge controller starts to control the first three-way electric valve and the
Two three-way electric valve switch operating states.
It should be noted that just carrying out outdoor environment temperature inspection after the preset duration that setting unit powers off
The reason of survey is that after water heater power-off, unit water pipe will not freeze quickly, lay equal stress on if outage problem solves soon
It newly powers on, water heater is reruned to be emptied with regard to not having to progress water pipe.Above-mentioned preset duration can be by user according to actually making
Free adjusting is carried out with environment.
Through the foregoing embodiment, after the preset duration that unit powers off, hot water just is detected using temperature sensor
Outdoor environment temperature locating for device improves user's to realize the flexible control for carrying out Auto-drainage operation to unit
Normal use experience.
In the above embodiment of the invention, the above method further include: after water heater re-powers, generate and reset control
Signal processed；Based on reseting controling signal, switch the working condition of motor-driven valve, so that the unit water lines of water heater and water tank are connected
Form water pipe channel when water heater works normally.
Specifically, after water heater re-powers, the control mainboard (i.e. above-mentioned host controller) of water heater is sent
Power on signal control of water supply and drainage device, water discharge controller reset two three-way electric valves again, make after receiving power on signal
Inlet pipeline, the outlet pipeline of water heater connect the water pipe channel to be formed when water heater works normally with water tank again.
Through the foregoing embodiment, it after water heater re-powers, under the control of water discharge controller, automatically resets two
Three-way electric valve, so that water pipe channel when water heater works normally is formed, to realize what automatic recovery water heater worked normally
Function improves user to the usage experience of water heater.
In above-described embodiment, in the case where the unit water lines of water heater and atmosphere form drainage channel, atmosphere is from the
The unit side interface and atmosphere of one three-way electric valve are connected the air inlet to be formed and are entered, under the action of atmospheric pressure, unit pipe
Road ponding is flowed to the approach of inlet pipeline again along from outlet pipeline to unit, and is flanked from the unit of the second three-way electric valve
Mouth connects the discharge outlet to be formed discharge with atmosphere.It connects to form water heater normal function in the unit water lines and water tank of water heater
In the case where water pipe channel when work, the cold water outside unit is injected cold water in water tank by outlet pipeline, water tank realization pair
The heating function of cold water, the hot water in water tank are flowed out by inlet pipeline, provide hot water for user.
The above embodiment of the present invention is described in detail below with reference to Fig. 4.As shown in figure 4, the embodiment may include steps of:
Step S401, water heater booting, the first three-way electric valve and the second three-way electric valve reset.
Specifically, water heater is switched on, and the power on signal that water heater is switched on is sent to water discharge controller by host controller, arranges
Water controller generates reseting controling signal, under the action of reseting controling signal, the first three-way electric valve and the second electric three-way
Valve resets, and so that the inlet pipeline of water heater, outlet pipeline is connected the water pipe to be formed when water heater works normally with water tank again logical
Road.
Power-off signal is sent to water discharge controller by step S402, water heater power-off, host controller.
Specifically, the improper power-off of unit that user carries out power operation or water heater to the unit of water heater is (as dashed forward
So have a power failure).
Step S403, water discharge controller start timing after receiving the power-off signal of water heater.
Step S404, timing duration reach 20min.
Step S405 utilizes the outdoor environment temperature of outdoor temperature sensor acquisition water heater.
Step S406, judges whether outdoor environment temperature is lower than 1 DEG C.
If judging, outdoor environment temperature lower than 1 DEG C, thens follow the steps S407；Otherwise, step S411 is executed.
Step S407, water discharge controller generate and export draining control signal.
Step S408, under the control of draining control signal, the first three-way electric valve and the second electric three-way Vavle switching work
Make state, so that the unit water lines of water heater and atmosphere form drainage channel.
Whole ponding of unit internal duct are discharged by drainage channel by step S409.
Step S410, water heater re-power.
After executing step S410, step S401 is executed.
Step S411, timing 1min.
Specifically, after executing step S411, S405 is returned to step.
In the above-described embodiments, it may be implemented for the ponding of unit internal duct to be all discharged by drainage channel, in this way
Would not cause water pipe from freezing crack because outdoor environment temperature is too low, be effectively protected unit using safe.In water heater
After re-powering, under the control of water discharge controller, automatically reset two three-way electric valves, to form the normal work of water heater
Water pipe channel when making improves user to the usage experience of water heater to realize the automatic function of restoring water heater and work normally.
Embodiment 3
Fig. 5 is a kind of schematic diagram of the drain control unit of water heater according to an embodiment of the present invention, as shown in figure 5, should
Control device includes: the first generation module 51 and the first switching module 53.
Wherein, the first generation module 51 powers off for the unit in water heater and outdoor environment temperature is lower than preset temperature
In the case where, it generates and exports draining control signal；
First switching module 53, for switching the working condition of motor-driven valve based on draining control signal, so that water heater
Unit water lines and atmosphere between water tank and unit form drainage channel.
Using the embodiment of the present invention, the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
Under, water discharge controller generate draining control signal, and will draining control signal export it is electronic in unit water lines to being arranged in
Valve, motor-driven valve is under the control of draining control signal, switch operating state, so that the unit water lines of water heater are formed with atmosphere
Drainage channel.Through the foregoing embodiment, in the unit power-off of water heater, the draining that can be generated by water discharge controller is controlled
Signal automatically controls motor-driven valve switch operating state, so that the unit water lines of water heater and atmosphere form drainage channel, passes through
Whole ponding of unit internal duct can be discharged in drainage channel, thus will not cause water because outdoor environment temperature is too low
Pipe bursting by freezing solves in the prior art the problem of water heater can not carry out drain operation in time, lead to pipeline bursting by freezing in winter,
While protecting unit, the unnecessary loss of user is avoided.
The unit power-off of above-mentioned water heater can carry out power operation based on unit of the user to water heater and occur, or
Unit of the person based on water heater it is improper power-off and occur.
Specifically, motor-driven valve is set in the unit water lines between the water tank of water heater and unit, and is increased for controlling
Make the water discharge controller of draining.In the unit power-off of water heater and outdoor environment temperature (such as preset temperature can lower than preset temperature
Think 0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to motor-driven valve,
Motor-driven valve automatically switches working condition under the control of draining control signal, so that the unit water lines of water heater and atmosphere shape
At drainage channel, the ponding of unit internal duct is discharged by drainage channel.
In the above embodiment of the invention, the first switching module includes: the first switching submodule, for controlling in draining
Under the control of signal, switches the working condition of the first three-way electric valve, make the unit side interface and atmosphere of the first three-way electric valve
Connecting becomes air inlet；Second switching submodule, for switching the second three-way electric valve under the control of draining control signal
Working condition, connecting the unit side interface of the second three-way electric valve and atmosphere becomes discharge outlet, wherein motor-driven valve includes first
Three-way electric valve and the second three-way electric valve.
Specifically, in the unit power-off of water heater and outdoor environment temperature (such as preset temperature can be lower than preset temperature
0 DEG C) in the case where, water discharge controller automatically generates draining control signal, and draining control signal is exported to the one or three and is powered
Dynamic valve and the second three-way electric valve, under the control of draining control signal, the first three-way electric valve switch operating state, the one or three
The unit side interface and atmosphere of logical motor-driven valve are connected to form air inlet, the second three-way electric valve switch operating state, the second threeway
The unit side interface and atmosphere of motor-driven valve are connected to form discharge outlet, and it is logical that the unit water lines and atmosphere of such water heater form draining
The ponding on road, unit internal duct is drained by the lower three-way electric valve in position (the second i.e. above-mentioned three-way electric valve)
Operation.
Through the foregoing embodiment, two three-way electric valves are set in unit water lines, by controlling the two three energizations
Dynamic Vavle switching working condition, so as to form the drainage channel for draining, realize to unit internal duct ponding from
Dynamic draining control, further, since in the unit water lines between unit and water tank, unit is being discharged in two three-way electric valves
While the ponding of internal duct, the water storage inside water tank can be effectively prevented and be drained off, ensure that the normal use of water heater.
In the above embodiment of the invention, device further include: receiving module, for generating and exporting draining control letter
Before number, in the case where the power-off of the unit of water heater, the power-off signal that the host controller of unit is sent is received；Acquire mould
Block utilizes temperature sensor for starting timing when receiving power-off signal, and after timing duration reaches preset duration
Acquire the outdoor environment temperature of water heater.
Above-mentioned temperature sensor is outdoor temperature sensor, for monitoring locating for water heater after unit power-off
Outdoor environment temperature.
Optionally, the improper power-off of unit of power operation or water heater is carried out in unit of the user to water heater
Afterwards, the control mainboard (i.e. above-mentioned host controller) of water heater sends power-off signal and controls to the draining of responsible control draining
Device, water discharge controller start to carry out timing after receiving power-off signal, and after timing duration reaches preset duration,
After timing to 20min, outdoor temperature sensor is begun to use to detect outdoor environment temperature, detection frequency is every point
Clock is primary, and when the outdoor environment temperature detected is lower than 0 DEG C, water discharge controller starts to control the first three-way electric valve and the
Two three-way electric valve switch operating states.
It should be noted that just carrying out outdoor environment temperature inspection after the preset duration that setting unit powers off
The reason of survey is that after water heater power-off, unit water pipe will not freeze quickly, lay equal stress on if outage problem solves soon
It newly powers on, water heater is reruned to be emptied with regard to not having to progress water pipe.Above-mentioned preset duration can be by user according to actually making
Free adjusting is carried out with environment.
Through the foregoing embodiment, after the preset duration that unit powers off, hot water just is detected using temperature sensor
Outdoor environment temperature locating for device improves user's to realize the flexible control for carrying out Auto-drainage operation to unit
Normal use experience.
In the above embodiment of the invention, device further include: the second generation module, for re-powering it in water heater
Afterwards, reseting controling signal is generated；Second switching module, for switching the working condition of motor-driven valve based on reseting controling signal, with
The unit water lines and water tank for making water heater connect the water pipe channel to be formed when water heater works normally.
Specifically, after water heater re-powers, the control mainboard (i.e. above-mentioned host controller) of water heater is sent
Power on signal control of water supply and drainage device, water discharge controller reset two three-way electric valves again, make after receiving power on signal
Inlet pipeline, the outlet pipeline of water heater connect the water pipe channel to be formed when water heater works normally with water tank again.
Through the foregoing embodiment, it after water heater re-powers, under the control of water discharge controller, automatically resets two
Three-way electric valve, so that water pipe channel when water heater works normally is formed, to realize what automatic recovery water heater worked normally
Function improves user to the usage experience of water heater.
In above-described embodiment, in the case where the unit water lines of water heater and atmosphere form drainage channel, atmosphere is from the
The unit side interface and atmosphere of one three-way electric valve are connected the air inlet to be formed and are entered, under the action of atmospheric pressure, unit pipe
Road ponding is flowed to the approach of inlet pipeline again along from outlet pipeline to unit, and is flanked from the unit of the second three-way electric valve
Mouth connects the discharge outlet to be formed discharge with atmosphere.It connects to form water heater normal function in the unit water lines and water tank of water heater
In the case where water pipe channel when work, the cold water outside unit is injected cold water in water tank by outlet pipeline, water tank realization pair
The heating function of cold water, the hot water in water tank are flowed out by inlet pipeline, provide hot water for user.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (13)
1. a kind of drainage control system of water heater characterized by comprising
Water discharge controller, for generating in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
And export draining control signal；
Motor-driven valve is arranged in the unit water lines between the water tank and unit of the water heater, for controlling in the draining
Under the control of signal, switch operating state, so that the unit water lines of the water heater and atmosphere form drainage channel；
The system also includes: host controller is arranged on the unit, the feelings for the unit power-off in the water heater
Under condition, power-off signal is sent to the water discharge controller.
2. drainage control system according to claim 1, which is characterized in that the unit water lines include: outlet pipeline
And inlet pipeline, wherein the motor-driven valve includes:
First three-way electric valve is arranged on the outlet pipeline；
Second three-way electric valve is arranged on the inlet pipeline,
Wherein, unit side interface and the atmosphere are connected as air inlet after the first three-way electric valve switch operating state,
Unit side interface and the atmosphere, which are connected, after the second three-way electric valve switch operating state becomes discharge outlet.
3. drainage control system according to claim 1, which is characterized in that
The system also includes: temperature sensor；
The water discharge controller is also used to start timing when receiving the power-off signal, when timing duration reaches default
After length, the outdoor environment temperature of the water heater is acquired using the temperature sensor.
4. drainage control system according to claim 1, which is characterized in that
The host controller is also used to after the water heater re-powers, and sends upper telecommunications to the water discharge controller
Number；
The water discharge controller is also used to after receiving the power on signal, generates reseting controling signal；
The motor-driven valve is also used under the triggering of the reseting controling signal, switch operating state, so that the water heater
Unit water lines and the water tank connect the water pipe channel to be formed when the water heater works normally.
5. drainage control system as claimed in any of claims 1 to 4, which is characterized in that the water discharge controller
In be built-in with electrical storage device.
6. a kind of water discharge control method of water heater characterized by comprising
In the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature, generates and export draining control
Signal；
Signal is controlled based on the draining, switches the working condition of motor-driven valve, so that between the water tank and unit of the water heater
Unit water lines and atmosphere formed drainage channel；
Before generating and exporting draining control signal, the method also includes: the case where the unit of the water heater powers off
Under, receive the power-off signal that the host controller of the unit is sent.
7. water discharge control method according to claim 6, which is characterized in that control signal, switching electricity based on the draining
The working condition of dynamic valve includes:
Under the control of the draining control signal, switch the working condition of the first three-way electric valve, makes the described 1st to be powered
The unit side interface and the atmosphere of dynamic valve, which are connected, becomes air inlet；
Under the control of the draining control signal, switch the working condition of the second three-way electric valve, makes the described 2nd 3 to be powered
The unit side interface and the atmosphere of dynamic valve, which are connected, becomes discharge outlet,
Wherein, the motor-driven valve includes first three-way electric valve and second three-way electric valve.
8. water discharge control method according to claim 7, which is characterized in that generate and export draining control signal it
Before, the method also includes:
Start timing when receiving the power-off signal, and after timing duration reaches preset duration, utilizes temperature sensing
Device acquires the outdoor environment temperature of the water heater.
9. water discharge control method according to claim 6, which is characterized in that the method also includes:
After the water heater re-powers, reseting controling signal is generated；
Based on the reseting controling signal, switch the working condition of the motor-driven valve, so that the unit water lines of the water heater
The water pipe channel to be formed when the water heater works normally is connected with the water tank.
10. a kind of drain control unit of water heater characterized by comprising
First generation module, for giving birth in the case where the unit of water heater powers off and outdoor environment temperature is lower than preset temperature
At and export draining control signal；
First switching module switches the working condition of motor-driven valve, so that the water heater for controlling signal based on the draining
Water tank and unit between unit water lines and atmosphere formed drainage channel；
Described device further include: receiving module, for generate and export draining control signal before, in the machine of the water heater
In the case where group power-off, the power-off signal that the host controller of the unit is sent is received.
11. drain control unit according to claim 10, which is characterized in that first switching module includes:
First switching submodule, for switching the work shape of the first three-way electric valve under the control of the draining control signal
State, connecting the unit side interface of first three-way electric valve and the atmosphere becomes air inlet；
Second switching submodule, for switching the work shape of the second three-way electric valve under the control of the draining control signal
State, connecting the unit side interface of second three-way electric valve and the atmosphere becomes discharge outlet,
Wherein, the motor-driven valve includes first three-way electric valve and second three-way electric valve.
12. drain control unit according to claim 11, which is characterized in that described device further include:
Acquisition module, for starting timing when receiving the power-off signal, and after timing duration reaches preset duration,
The outdoor environment temperature of the water heater is acquired using temperature sensor.
13. drain control unit according to claim 10, which is characterized in that described device further include:
Second generation module, for generating reseting controling signal after the water heater re-powers；
Second switching module switches the working condition of the motor-driven valve, so that the heat for being based on the reseting controling signal
The unit water lines of hydrophone and the water tank connect the water pipe channel to be formed when the water heater works normally.
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| CN201610349691.5A CN105823221B (en) | 2016-05-23 | 2016-05-23 | The water discharge control method of water heater, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107559927A (en) * | 2017-09-29 | 2018-01-09 | 珠海格力电器股份有限公司 | A kind of water dispenser group winterization system and method |
| CN108317727B (en) * | 2018-02-05 | 2020-08-25 | 广东美的暖通设备有限公司 | Water heater and anti-freezing control method, controller and storage medium of water path system of water heater |
| CN110873458A (en) * | 2018-08-29 | 2020-03-10 | 江苏美力格环境科技有限公司 | Automatic anti-freezing system of air energy water heater and control method thereof |
| CN111707005A (en) * | 2020-05-25 | 2020-09-25 | 广东纽恩泰新能源科技发展有限公司 | Automatic drainage anti-freezing system for power failure |
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