CN105157236A - Water heater water returning control method - Google Patents
Water heater water returning control method Download PDFInfo
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- CN105157236A CN105157236A CN201510437748.2A CN201510437748A CN105157236A CN 105157236 A CN105157236 A CN 105157236A CN 201510437748 A CN201510437748 A CN 201510437748A CN 105157236 A CN105157236 A CN 105157236A
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- backwater
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- water spot
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Abstract
The invention discloses a water heater water returning control method. The water heater water returning control method comprises the steps of judging frequently-used water points and not-frequently-used water points in multiple water using points of a water heater, and only conducting water returning on the frequently-used water points when the water temperature of the frequently-used water points is smaller than a first preset value. Firstly, the water using points are distinguished into the frequently-used water points and the not-frequently-used water points, then only the frequently-used water points are subjected to water returning when the water temperature of the frequently-used water points is smaller than the first preset value, but the not-frequently-used water points are not subjected to water returning. In this way, targeted control can be conducted, so that heat energy waste is effectively prevented while water using comfort is ensured.
Description
Technical field
The present invention relates to water heater backwater control field, in particular to a kind of water heater backwater control method.
Background technology
Hot water machine storage tank hot water outlet often has very long one section of pipeline from user with water spot, and this section of pipeline can dispel the heat and the cooling of the hot water in pipeline is cooled off in environment.When user uses water long period water spacer last time specifically, because the water in pipeline cools off, tap of fetching boiling water often need to bleed off greatly water until hot water arrival water spot, waste water resource and user time in water tank.
At present, most of hot water machine can carry water return function or the external water recovery apparatus of engineering, when detect user by water spot place temperature lower than a setting value time, automatic unlatching back water pump, hot water in water tank is delivered to and with water spot, cold water is sent to water tank, so just can ensure that user's tap of fetching boiling water at any time has hot water to use.But, this water return method, backwater action is controlled only by detection water spot water temperature, when water temperature drops to below a setting value, carry out the backwater of whole water system with regard to starting back water pump, its disadvantage is: can not be distinguished by water spot regimen condition different, broadly all backwater point all carries out backwater, add heat dissipation, waste energy, this is also that user often denounces one of the reason of air energy thermal water machine power consumption.
Summary of the invention
A kind of water heater backwater control method that effectively can prevent heat waste while guarantee water comfortableness is provided in the embodiment of the present invention.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of water heater backwater control method, comprising: judge that the warp in multiple water spots of water heater is commonly used water spot and infrequently uses water spot; When the water temperature that described warp commonly uses water spot is less than the first predetermined value, only water spot is commonly used to described warp and carry out backwater.
As preferably, judge that the warp in multiple water spots of water heater is commonly used water spot and infrequently comprised with water spot: twice backwater is carried out to described multiple water spot; Detect the water temperature change of each water spot in the backwater interval of described twice backwater; Judge whether to detect that the water temperature of a certain water spot first rises at least one times, more slowly decline, and then raise; If so, then described a certain water spot is through conventional water spot, otherwise described a certain water spot is for infrequently to use water spot.
As preferably, described method also comprises: carry out twice backwater to described multiple water spot; Detect the water temperature change of each water spot in the backwater interval of described twice backwater; If there is no user's water between described twice backwater interval, and more than the water temperature drop speed of a certain branch road to the prearranged multiple of the minimum water temperature drop speed in all branch roads detected, then judge that the heat-insulating property of this certain branch road is poor, otherwise the heat-insulating property of this certain branch road is good.
As preferably, twice backwater is carried out to described multiple water spot and comprises: when the water temperature of described multiple water spot is lower than the second predetermined value, first time backwater is carried out to described multiple water spot, to guarantee that the pipeline of described multiple water spot has identical water temperature; After first scheduled time of described first time backwater, second time backwater is carried out to described multiple water spot.
As preferably, described water temperature change is sent to high in the clouds, and judges that described a certain water spot is through conventional water spot or infrequently uses water spot by described high in the clouds.
As preferably, described method also comprises: its judged result is returned to the unit of described water heater by described high in the clouds; Whether described unit reminding user carries out intelligent backwater control; If subscriber authorisation carries out intelligent backwater control, just when the water temperature that described warp commonly uses water spot is less than described first predetermined value, only water spot is commonly used to described warp and carry out backwater; Otherwise, when the water temperature of described multiple water spot is less than described first predetermined value, with water spot, backwater is carried out to all.
As preferably, described water temperature change is sent to high in the clouds, described high in the clouds judges that the heat-insulating property of this certain branch road is poor or good and unit judged result being returned to described water heater exists the poor branch road of heat-insulating property with reminding user.
As preferably, described method also comprises: obtain environment temperature; Infrequently use the water temperature of water spot whether higher than predetermined icing early warning temperature described in judgement; Described infrequently use the water temperature of water spot higher than described icing early warning temperature time, infrequently use the branch road by-pass valve control of water spot described in closedown.
As preferably, described method also comprises: infrequently arrange pressure return water temperature with water spot for described, and described pressure return water temperature is higher than described icing early warning temperature; Described infrequently use the water temperature of water spot lower than described icing early warning temperature time, open described branch road by-pass valve control and carry out backwater.
As preferably, in backwater process, when water temperature rises to the 3rd predetermined value, stop backwater.
First the present invention will divide into through conventional water spot with water spot and infrequently use water spot, and when the water temperature through conventional water spot is less than the first predetermined value, will only commonly use water spot to described warp and carry out backwater, but, not to infrequently using water spot backwater.Like this, can control targetedly, while guarantee water comfortableness, thus effectively prevent the waste of heat.
Accompanying drawing explanation
Fig. 1 is the flow chart of the water heater backwater control method of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Please refer to Fig. 1, the embodiment of the present invention provides a kind of water heater backwater control method, comprising: judge that the warp in multiple water spots of water heater is commonly used water spot and infrequently uses water spot; When the water temperature that described warp commonly uses water spot is less than the first predetermined value, only water spot is commonly used to described warp and carry out backwater.In a preferred embodiment, the temperature-sensitive bag of each water branch road can be utilized to detect the water temperature of each water spot.
During work, first will divide into through conventional water spot with water spot and infrequently use water spot, and Real-Time Monitoring water temperature, when the water temperature through conventional water spot is less than the first predetermined value, only water spot is commonly used to described warp and carry out backwater, but, not to infrequently using water spot backwater.Such as, when there is multiple water spot at user place, and when conventional water spot only has sub-fraction and major part water spot infrequently to use, only need the pipeline relevant through conventional water spot to carry out backwater.Thus, the present invention can control targetedly, while guarantee water comfortableness, thus effectively prevent the waste of heat.
Preferably, judge that the warp in multiple water spots of water heater is commonly used water spot and infrequently comprised with water spot: twice backwater is carried out to described multiple water spot; Detect the water temperature change of each water spot in the backwater interval of described twice backwater; Judge whether to detect that the water temperature of a certain water spot first rises at least one times, more slowly decline, and then raise; If so, then described a certain water spot is through conventional water spot, otherwise described a certain water spot is for infrequently to use water spot.
Wherein, the water temperature that a certain water spot causes due to the backwater in backwater stage rises, and then slowly declining due to natural heat dissipation, water temperature can be caused again to raise when attracting hot water when there being user's water.Thus, can judge whether a certain water spot is through conventional water spot by whether there is temperature rising in twice backwater interval.If there is not water temperature to raise between twice backwater, so owing to not introducing hot water because of user's water, its water temperature is in slow decline state all the time, and thus, this use water spot is for infrequently to use water spot.
Preferably, described method also comprises: carry out twice backwater to described multiple water spot; Detect the water temperature change of each water spot in the backwater interval of described twice backwater; If there is no user's water between described twice backwater interval, and more than the water temperature drop speed of a certain branch road to the prearranged multiple of the minimum water temperature drop speed in all branch roads detected, then judge that the heat-insulating property of this certain branch road is poor, otherwise the heat-insulating property of this certain branch road is good.
Preferably, twice backwater is carried out to described multiple water spot and comprises: when the water temperature of described multiple water spot is lower than the second predetermined value, first time backwater is carried out to described multiple water spot, to guarantee that the pipeline of described multiple water spot has identical water temperature; After first scheduled time of described first time backwater, second time backwater is carried out to described multiple water spot.Preferably, the second predetermined value can be set by the user, the scope that such as, it can be [35,55] DEG C, is preferably 42 DEG C.By first time backwater, the water temperature in all pipelines can be made to be in same temperature point.Preferably, first scheduled time was 24 hours.
Preferably, described water temperature change is sent to high in the clouds, and judges that described a certain water spot is through conventional water spot or infrequently uses water spot by described high in the clouds.After from first time backwater, the water temperature of each water spot can be continually detected and by will to high in the clouds.Like this, the water temperature that high in the clouds just can receive according to it judges which is through conventional water spot with water spot, and which is infrequently use water spot with water spot.
Preferably, described method also comprises: its judged result is returned to the unit of described water heater by described high in the clouds; Whether described unit reminding user carries out intelligent backwater control; If subscriber authorisation carries out intelligent backwater control, just when the water temperature that described warp commonly uses water spot is less than described first predetermined value, only water spot is commonly used to described warp and carry out backwater; Otherwise, when the water temperature of described multiple water spot is less than described first predetermined value, with water spot, backwater is carried out to all.Like this, whether whether unit obtaining, about being after the judged result of conventional water spot, namely pointing out user to authorize by its line control machine and carrying out intelligent backwater control.As user does not authorize, then do not distinguish through conventional water spot and infrequently use water spot, and resemble usual manner of the prior art backwater is controlled, such as, when the water temperature of described multiple water spot is less than described first predetermined value, with water spot, backwater is carried out to all.If user has made mandate, so then when the water temperature that described warp commonly uses water spot is less than the first predetermined value, only water spot is commonly used to described warp and carried out backwater.
Preferably, the change of described water temperature is sent to high in the clouds, described high in the clouds judges that the heat-insulating property of this certain branch road is poor or good and unit judged result being returned to described water heater exists the poor branch road of heat-insulating property with reminding user.Like this, the present invention can judge each pipeline heat insulation situation and feed back to user to there is insulation problem with which branch road of reminding user according to each water spot temperature drop situation, needs to carry out further isothermal holding.
In a preferred embodiment, in during the backwater of twice no user water, if detect that a certain branch road temperature fall off rate is more than 1.5 times of fall off rate minimum leg, then judge that this branch road heat-insulating property is poor.So judged result is returned to unit by high in the clouds.Point out user that this branch road is carried out further isothermal holding by unit.If all branch road fall off rates are less than 1.5 times of fall off rate minimum leg, then think that all branch road heat-insulating properties are good, do not feed back prompting message.
Preferably, described method also comprises: obtain environment temperature; Infrequently use the water temperature of water spot whether higher than predetermined icing early warning temperature described in judgement, such as 2 DEG C; Described infrequently use the water temperature of water spot higher than described icing early warning temperature time, infrequently use the branch road by-pass valve control of water spot described in closedown.Like this, according to the environment temperature that outer machine examination measures, judge that whether ring temperature is higher than icing early warning temperature, in one embodiment, early warning temperature of freezing can be 2 DEG C.If higher than icing early warning temperature, then thinking the danger that pipeline does not freeze, therefore, by infrequently shutting with the branch road by-pass valve control on the branch road of water spot, not carrying out the backwater of this branch road.Otherwise, if environment temperature is lower than icing early warning temperature, then thinks that pipeline has ice hazard as long-term not water flowing, need to carry out backwater.
Preferably, described method also comprises: infrequently arrange pressure return water temperature with water spot for described, and described pressure return water temperature is higher than described icing early warning temperature; Described infrequently use the water temperature of water spot lower than described icing early warning temperature time, open described branch road by-pass valve control and carry out backwater.In a preferred embodiment, force return water temperature can be set smaller than the second predetermined value and be greater than a certain value of icing early warning temperature, generally get 5 DEG C.Like this, only when this branch road temperature is less than pressure return water temperature, just open this branch road valve and carry out backwater.Therefore, by the present embodiment, can making ice and freezing pipeline.
Preferably, in backwater process, when water temperature rises to the 3rd predetermined value, stop backwater.In a preferred embodiment, when temperature-sensitive bag continuous second scheduled time of backwater Zhi Huicheng, detect when being more than or equal to described 3rd predetermined value by the water temperature of water spot between in preferred 5s, the backwater in this will be prevented.Such as, when subscriber authorisation enters intelligent backwater pattern, when the backwater water temperature of conventional water spot rises to the 3rd predetermined value, stop the backwater of the conventional water spot branch road of this warp; And when user do not authorize carry out intelligent backwater pattern (i.e. normal backwater pattern), when the water temperature of useful water spot be all more than or equal to the 3rd predetermined value time, then stop the backwater of all branch roads.Correspondingly, in the normal control mode, when in the water temperature with water spot, when being preferably all less than the first predetermined value within the 3rd scheduled time (such as 5 seconds), backwater is carried out to useful water spot.
Preferably, user, by manual mode, cancels described mandate.After cancellation is authorized, whole system recovers normal backwater pattern, no longer enters intelligent backwater pattern.
Preferably, signals collecting can be adopted to carry out water temperature collection, also can utilize transmission chip by the water temperature that collects and high in the clouds interconnected, like this, man-machine communication is carried out by unit and user in high in the clouds.。Especially, return water system have on each water branch be provided with detect water temperature temperature-sensitive bag and control valve member accordingly.
Combined with air energy heat pump technology by internet, intelligent decision user uses regimen condition, and the conventional water spot of difference and the water spot that is of little use, carry out difference backwater control for judged result, reach energy-conservation object.Judged by water temperature change, pipeline heat insulation situation can be identified and feed back to user, playing reminding effect.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a water heater backwater control method, is characterized in that, comprising:
Judge that the warp in multiple water spots of water heater is commonly used water spot and infrequently uses water spot;
When the water temperature that described warp commonly uses water spot is less than the first predetermined value, only water spot is commonly used to described warp and carry out backwater.
2. water heater backwater control method according to claim 1, is characterized in that, judges that the warp in multiple water spots of water heater is commonly used water spot and infrequently comprised with water spot:
Twice backwater is carried out to described multiple water spot;
Detect the water temperature change of each water spot in the backwater interval of described twice backwater;
Judge whether to detect that the water temperature of a certain water spot first rises at least one times, more slowly decline, and then raise; If so, then described a certain water spot is through conventional water spot, otherwise described a certain water spot is for infrequently to use water spot.
3. water heater backwater control method according to claim 1, is characterized in that, described method also comprises:
Twice backwater is carried out to described multiple water spot;
Detect the water temperature change of each water spot in the backwater interval of described twice backwater;
If there is no user's water between described twice backwater interval, and more than the water temperature drop speed of a certain branch road to the prearranged multiple of the minimum water temperature drop speed in all branch roads detected, then judge that the heat-insulating property of this certain branch road is poor, otherwise the heat-insulating property of this certain branch road is good.
4. the water heater backwater control method according to Claims 2 or 3, is characterized in that, carries out twice backwater comprise described multiple water spot:
When the water temperature of described multiple water spot is lower than the second predetermined value, first time backwater is carried out to described multiple water spot, to guarantee that the pipeline of described multiple water spot has identical water temperature;
After first scheduled time of described first time backwater, second time backwater is carried out to described multiple water spot.
5. water heater backwater control method according to claim 2, is characterized in that, described water temperature change is sent to high in the clouds, and judges that described a certain water spot is through conventional water spot or infrequently uses water spot by described high in the clouds.
6. water heater backwater control method according to claim 5, is characterized in that, described method also comprises:
Its judged result is returned to the unit of described water heater by described high in the clouds;
Whether described unit reminding user carries out intelligent backwater control;
If subscriber authorisation carries out intelligent backwater control, just when the water temperature that described warp commonly uses water spot is less than described first predetermined value, only water spot is commonly used to described warp and carry out backwater; Otherwise, when the water temperature of described multiple water spot is less than described first predetermined value, with water spot, backwater is carried out to all.
7. according to the water heater backwater control method that claim 3 is stated, it is characterized in that, the change of described water temperature is sent to high in the clouds, and described high in the clouds judges that the heat-insulating property of this certain branch road is poor or good and unit judged result being returned to described water heater exists the poor branch road of heat-insulating property with reminding user.
8. water heater backwater control method according to claim 1, is characterized in that, described method also comprises:
Obtain environment temperature;
Infrequently use the water temperature of water spot whether higher than predetermined icing early warning temperature described in judgement;
Described infrequently use the water temperature of water spot higher than described icing early warning temperature time, infrequently use the branch road by-pass valve control of water spot described in closedown.
9. water heater backwater control method according to claim 8, is characterized in that, described method also comprises:
Infrequently arrange pressure return water temperature with water spot for described, described pressure return water temperature is higher than described icing early warning temperature;
Described infrequently use the water temperature of water spot lower than described icing early warning temperature time, open described branch road by-pass valve control and carry out backwater.
10. water heater backwater control method according to claim 1, is characterized in that, in backwater process, when water temperature rises to the 3rd predetermined value, stops backwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437748.2A CN105157236B (en) | 2015-07-22 | 2015-07-22 | Water heater backwater control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437748.2A CN105157236B (en) | 2015-07-22 | 2015-07-22 | Water heater backwater control method |
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| CN105157236A true CN105157236A (en) | 2015-12-16 |
| CN105157236B CN105157236B (en) | 2018-10-09 |
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| CN201510437748.2A Active CN105157236B (en) | 2015-07-22 | 2015-07-22 | Water heater backwater control method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158445A (en) * | 1982-03-16 | 1983-09-20 | Matsushita Electric Ind Co Ltd | Controller for hot water supply device |
| CN103162414A (en) * | 2011-12-09 | 2013-06-19 | 珠海格力电器股份有限公司 | Water heater as well as return water system and control method thereof |
| CN104019556A (en) * | 2014-06-17 | 2014-09-03 | 广东美的暖通设备有限公司 | Water return control device, water system and water return control method |
-
2015
- 2015-07-22 CN CN201510437748.2A patent/CN105157236B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158445A (en) * | 1982-03-16 | 1983-09-20 | Matsushita Electric Ind Co Ltd | Controller for hot water supply device |
| CN103162414A (en) * | 2011-12-09 | 2013-06-19 | 珠海格力电器股份有限公司 | Water heater as well as return water system and control method thereof |
| CN104019556A (en) * | 2014-06-17 | 2014-09-03 | 广东美的暖通设备有限公司 | Water return control device, water system and water return control method |
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| CN105157236B (en) | 2018-10-09 |
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