CN113531914A - Anti-freezing control method and control device for water heater and water heater system - Google Patents
Anti-freezing control method and control device for water heater and water heater system Download PDFInfo
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- CN113531914A CN113531914A CN202110821651.7A CN202110821651A CN113531914A CN 113531914 A CN113531914 A CN 113531914A CN 202110821651 A CN202110821651 A CN 202110821651A CN 113531914 A CN113531914 A CN 113531914A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 355
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000007710 freezing Methods 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 1
- 230000002528 anti-freeze Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 208000001034 Frostbite Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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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
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
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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
- F24H9/0005—Details for water heaters
Abstract
The application provides a freeze-proofing control method, a control device and a water heater system of a water heater, wherein the water heater comprises a circulating pipeline and a circulating pump positioned on the circulating pipeline, and the freeze-proofing control method of the water heater comprises the following steps: acquiring the external environment temperature in real time; and controlling the circulating pump to start for a preset time under the condition that the external environment temperature is less than or equal to the first threshold value so as to enable the water in the circulating pipeline to circularly flow. According to the method, when the external environment temperature is lower, the water in the circulating pipeline in the water heater is controlled to circularly flow, so that the water in the circulating pipeline can be stirred, the water temperature in the circulating pipeline is uniformly distributed, the problem that the exposed pipeline or the joint of the water heater is frozen when the environment temperature is lower is avoided, the anti-freezing reliability of the water heater is better, and the problem that the heat exchanger or the pipeline of the water heater is frozen due to the fact that the exposed pipeline is frozen is further avoided.
Description
Technical Field
The application relates to the field of water heaters, in particular to an anti-freezing control method and device for a water heater, a computer readable storage medium, a processor and a water heater system.
Background
In the north, the temperature is low in winter, and the water heater is easy to frost crack a heat exchanger if no effective anti-freezing protection measures are adopted, so that the product is damaged and cannot be used. At present, the anti-freezing measures on the market mainly adopt that a ceramic heating body is arranged on a pipeline of a heat exchanger or water pump circulation and water heater starting work are adopted for anti-freezing protection, only local heating is carried out on the water heater, and water channel anti-freezing cannot be realized. However, most of water heaters are installed on balconies, and the balcony is provided with a section of exposed water channel away from an indoor water consumption point, and the section of water channel usually cannot be used for heat preservation, so that when the ambient temperature is lower, the pipeline is frozen, the water heater cannot be used for water pump circulation anti-freezing, and further the heat exchanger or the pipeline of the water heater is frozen and cracked.
Therefore, the freeze protection reliability of the water heater in the prior art is poor.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The present application mainly aims to provide an anti-freezing control method, a control device, a computer-readable storage medium, a processor and a water heater system for a water heater, so as to solve the problem of poor anti-freezing reliability of the water heater in the prior art.
According to an aspect of an embodiment of the present invention, there is provided an anti-freezing control method of a water heater including a circulation pipe and a circulation pump on the circulation pipe, the method including: acquiring the external environment temperature in real time; and controlling the circulating pump to start for a preset time to enable the water in the circulating pipeline to circularly flow under the condition that the external environment temperature is less than or equal to a first threshold value.
Optionally, in a case where the external ambient temperature is less than or equal to a first threshold, controlling the circulation pump to be activated for a predetermined period of time to circulate the water in the circulation pipe includes: determining the preset time according to the external environment temperature and a first threshold value under the condition that the external environment temperature is less than or equal to the first threshold value; and controlling the circulating pump to be switched off after the circulating pump is started for the preset time.
Optionally, the circulation pipeline includes a water inlet pipeline, a heat exchanger, a water outlet pipeline and a water return pipeline which are sequentially communicated end to end, the water heater further includes a heater, the heater is located on one side of the heat exchanger, and the method further includes: acquiring water inlet temperature and water outlet temperature in real time, wherein the water inlet temperature is the water temperature of the water inlet pipeline, and the water outlet temperature is the water temperature of the water outlet pipeline; determining whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold; and under the condition that the inlet water temperature or the outlet water temperature is less than or equal to the second threshold value, starting the circulating pump and the heater to heat the water circulating in the circulating pipeline.
Optionally, in a case that the inlet water temperature or the outlet water temperature is less than or equal to the second threshold, after the circulation pump and the heater are activated to heat the water circulating in the circulation pipe, the method further includes: determining whether the inlet water temperature or the outlet water temperature is greater than or equal to a third threshold, wherein the third threshold is greater than the second threshold; and under the condition that the inlet water temperature or the outlet water temperature is greater than or equal to the third threshold value, the heater and the circulating pump are turned off.
According to another aspect of the embodiment of the invention, there is also provided an anti-freezing control device of a water heater, the water heater comprising a circulation pipeline and a circulation pump located on the circulation pipeline, the device comprising a first obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining the external environment temperature in real time; the control unit is used for controlling the circulating pump to start for a preset time when the external environment temperature is less than or equal to a first threshold value, so that the water in the circulating pipeline flows circularly.
Optionally, the control unit includes a determining module and a control module, wherein the determining module is configured to determine the predetermined time period according to the external environment temperature and a first threshold value when the external environment temperature is less than or equal to the first threshold value; the control module is used for controlling the circulating pump to be switched off after the preset time period is started.
Optionally, the circulating pipeline includes a water inlet pipeline, a heat exchanger, a water outlet pipeline and a water return pipeline which are sequentially communicated end to end, the water heater further includes a heater, the heater is located on one side of the heat exchanger, the device further includes a second obtaining unit, a first determining unit and a starting unit, wherein the second obtaining unit is used for obtaining a water inlet temperature and a water outlet temperature in real time, the water inlet temperature is the water temperature of the water inlet pipeline, and the water outlet temperature is the water temperature of the water outlet pipeline; the first determination unit is used for determining whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold value; the starting unit is used for starting the circulating pump and the heater under the condition that the water inlet temperature or the water outlet temperature is smaller than or equal to the second threshold value, so as to heat the water circulating in the circulating pipeline.
According to still another aspect of embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program executes any one of the methods.
According to another aspect of the embodiments of the present invention, there is also provided a processor, configured to execute a program, where the program executes any one of the methods.
According to a further aspect of the embodiments of the present invention, there is also provided a water heater system, including a water heater and a controller, wherein the water heater includes a circulation pipe and a circulation pump on the circulation pipe; the controller comprises a control program for executing any of the methods.
In the embodiment of the invention, the anti-freezing control method of the water heater firstly obtains the external environment temperature; and then starting the circulating pump and operating the circulating pump for a preset time to enable the water in the circulating pipeline to circularly flow when the external environment temperature is less than or equal to a first threshold value. According to the method, when the external environment temperature is lower, the water in the circulating pipeline of the water heater is controlled to circularly flow, so that the water in the circulating pipeline can be stirred, the water temperature in the circulating pipeline is uniformly distributed, the problem that the exposed pipeline or the joint of the water heater is frozen when the environment temperature is lower is avoided, the anti-freezing reliability of the water heater is better, and the problem that the heat exchanger or the pipeline of the water heater is frozen due to the fact that the exposed pipeline is frozen is further avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 illustrates a flow diagram generated by an antifreeze control method for a water heater according to an embodiment of the present application;
FIG. 2 shows a schematic diagram of a water heater system according to an embodiment of the present application;
FIG. 3 illustrates a flow chart of freeze protection control for a water heater according to an embodiment of the present application;
FIG. 4 shows a schematic diagram of an antifreeze control apparatus for a water heater according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
100. a circulation pump; 101. a first temperature sensor; 102. a water inlet pipe; 103. a heat exchanger; 104. a water outlet pipeline; 105. a water return pipe; 106. a heater; 107. a second temperature sensor; 108. a third temperature sensor; 109. a water flow sensor; 110. a gas inlet; 111. a safety valve; 112. a proportional valve; 200. and a controller.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As mentioned in the background of the invention, in order to solve the above problems, the freeze protection control method, the control device, the computer readable storage medium, the processor and the water heater system of the water heater are provided in an exemplary embodiment of the present application.
According to an embodiment of the application, an anti-freezing control method of a water heater is provided.
FIG. 1 is a flow chart of an antifreeze control method of a water heater according to an embodiment of the present application. As shown in fig. 2, the water heater includes a circulation pipe and a circulation pump 100 disposed on the circulation pipe. As shown in fig. 1, the method comprises the steps of:
step S101, acquiring the external environment temperature in real time;
step S102, controlling the circulation pump 100 to start for a predetermined time to circulate the water in the circulation pipe when the external environment temperature is less than or equal to a first threshold.
In the anti-freezing control method of the water heater, firstly, the external environment temperature is obtained; and then, when the external environment temperature is less than or equal to the first threshold value, starting the circulating pump and operating the circulating pump for a preset time to enable the water in the circulating pipeline to circularly flow. According to the method, when the external environment temperature is lower, the water in the circulating pipeline of the water heater is controlled to circularly flow, so that the water in the circulating pipeline can be stirred, the water temperature in the circulating pipeline is uniformly distributed, the problem that the exposed pipeline or the joint of the water heater is frozen when the environment temperature is lower is avoided, the anti-freezing reliability of the water heater is better, and the problem that the heat exchanger or the pipeline of the water heater is frozen due to the fact that the exposed pipeline is frozen is further avoided.
In practical application, as shown in fig. 2, the water heater includes a first temperature sensor 101, and the first temperature sensor 101 is mounted on a housing of the water heater. The method acquires the external environment temperature by acquiring the detection data of the first temperature sensor in real time. Of course, the external ambient temperature of the present application is not limited to be obtained by the method described above, and the method of the present application may also obtain the temperature of the location of the water heater by means of networking or the like.
In a specific embodiment, the first threshold T is1The value of can be T less than or equal to-20 DEG C1At most-10 ℃. In a more specific embodiment, the first threshold T is set1-15 ℃. Of course, the first threshold value T is1The method is not limited to the above values, and those skilled in the art can flexibly set the values according to actual situations.
In order to further prevent the exposed pipe or joint of the water heater from being frozen, so as to further ensure good anti-freezing reliability of the water heater, according to a specific embodiment of the present application, in the case that the external ambient temperature is less than or equal to a first threshold, the method for controlling the circulation pump to be started for a predetermined time to circulate the water in the circulation pipe includes: determining the predetermined time period according to the external environment temperature and a first threshold value when the external environment temperature is less than or equal to the first threshold value; and controlling the circulating pump to be switched off after the preset time is started.
In practical application, the predetermined time period can be calculated according to actual needs in the field. In a specific embodiment, the predetermined time T is the first threshold T1A multiple a of the difference from the above-mentioned external ambient temperature T, i.e., T ═ T1T) x a, said multiple a being any value, and being set to a greater value in order to further avoid freezing of the exposed pipes of the water heater.
In a more specific embodiment of the present application, the multiple a is 2, and the predetermined time period is 2 times a difference between the first threshold and the external ambient temperature, i.e., T is (T ═ T)1-T)×2。
In another specific embodiment of the present application, as shown in fig. 2, the circulation pipe includes a water inlet pipe 102, a heat exchanger 103, a water outlet pipe 104, and a water return pipe 105, which are sequentially connected end to end, the water heater further includes a heater 106, the heater 106 is located at one side of the heat exchanger 103, and the method further includes: acquiring water inlet temperature and water outlet temperature in real time, wherein the water inlet temperature is the water temperature of the water inlet pipeline, and the water outlet temperature is the water temperature of the water outlet pipeline; determining whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold; when the temperature of the intake water or the temperature of the outlet water is less than or equal to the second threshold value, the circulation pump 100 and the heater 106 are activated to heat the water circulating in the circulation pipe. According to the method, the water temperature in the water inlet pipeline and the water temperature in the water outlet pipeline are monitored in real time, and the circulating pump and the heater are controlled to be started to circularly heat the water in the circulating pipeline under the condition that the water inlet temperature or the water outlet temperature is smaller than or equal to the second threshold value, so that the water in the circulating pipeline is further prevented from being frozen, and the water heater is further guaranteed to be good in anti-freezing reliability.
In practical application, the water heater may be any feasible water heater in the prior art, such as a gas water heater, an electric water heater, and the like. In another specific embodiment of the present application, the water heater is a gas water heater, and the heater is a burner of the gas water heater.
In a specific embodiment, as shown in fig. 2, the water heater includes a second temperature sensor 107 and a third temperature sensor 108, the second temperature sensor 107 is installed on the water inlet pipe 102, the third temperature sensor 108 is installed on the water outlet pipe 104, and the method obtains the water inlet temperature and the water outlet temperature through the second temperature sensor and the third temperature sensor.
In the practical application process, a person skilled in the art can flexibly set the value of the second threshold according to the practical situation. In another specific embodiment of the present application, the second threshold T is set to be greater than the first threshold T2The value of can be more than or equal to T at 1 DEG C2Less than or equal to 5 ℃. Specifically, the second threshold value T is set2＝3℃。
According to another specific embodiment of the present application, in a case where the temperature of the intake water or the temperature of the outlet water is less than or equal to the second threshold, after the circulating pump and the heater are activated to heat the water circulating in the circulating pipe, the method further includes: determining whether the inlet water temperature or the outlet water temperature is greater than or equal to a third threshold, wherein the third threshold is greater than the second threshold; and turning off the heater and the circulation pump when the intake water temperature or the discharge water temperature is greater than or equal to the third threshold value.
Specifically, the third threshold value T is set3The value of (A) can be more than or equal to T at 10 DEG C2Less than or equal to 25 ℃. In a more specific embodiment, the third threshold T is set to be greater than the first threshold T3At 25 ℃. Of course, the third threshold value T3The method is not limited to the above values, and those skilled in the art can flexibly set the values according to actual situations.
In practical applications, as shown in fig. 2, the water heater further includes a water flow sensor 109, the water flow sensor 109 is mounted on the water inlet pipe 102, and the heater 106 includes a gas inlet 110, a safety valve 111 and a proportional valve 112.
In another specific embodiment of the present application, the water heater is a gas water heater, and the antifreeze control flow of the water heater is shown in fig. 3. As shown in fig. 3, first, the gas water heater is in a standby state by supplying water, gas and electricity; then the water inlet temperature T is obtained in real timeIntoAnd the temperature T of the outlet waterGo outAnd determining the temperature T of the water supplyIntoAnd the above-mentioned outlet water temperature TGo outWhether or not it is less than or equal to the second threshold value T2At TInto≤T2Or TGo out≤T2Under the condition of (1), starting a circulating pump and a heater, and entering an anti-freezing protection heating state; then, the temperature T of the inlet water is determinedIntoAnd the above-mentioned outlet water temperature TGo outWhether it is greater than or equal to the third threshold value T3At TInto≥T3And TGo out≥T3Under the condition of (1), the circulating pump and the heater are closed, so that the water heater is heated after being quitted from the anti-freezing protectionState, and determining whether the external ambient temperature T is less than or equal to a first threshold value T1Where T is less than or equal to T1When the water heater is started, the circulating pump is started, the water heater enters a back circulation anti-freezing state, and the preset time period T for starting the circulating pump is equal to (T)1-T) x a; and finally, the water heater exits the rear circulation anti-freezing state and continues to stand by.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
The embodiment of the application also provides an anti-freezing control device of a water heater, and it should be noted that the anti-freezing control device of the water heater in the embodiment of the application can be used for executing the anti-freezing control method for the water heater provided in the embodiment of the application. The anti-freezing control device of the water heater provided by the embodiment of the application is described below.
FIG. 4 is a schematic diagram of an antifreeze control apparatus for a water heater according to an embodiment of the present application. As shown in fig. 2, the water heater includes a circulation pipe and a circulation pump 100 disposed on the circulation pipe. As shown in fig. 4, the apparatus includes a first obtaining unit 10 and a control unit 20, wherein the first obtaining unit 10 is configured to obtain an external environment temperature in real time; the control unit 20 is configured to control the circulation pump 100 to be activated for a predetermined time period to circulate the water in the circulation pipe if the external ambient temperature is less than or equal to a first threshold value.
The anti-freezing control device of the water heater obtains the external environment temperature through the first obtaining unit; when the external environment temperature is smaller than or equal to a first threshold value, the control unit starts the circulating pump and enables the circulating pump to run for a preset time to enable the water in the circulating pipeline to circularly flow. The above-mentioned device of this application, the hydrologic cycle in the circulation pipeline flows when external ambient temperature is lower in the control water heater, can stir the water in the circulation pipeline like this for temperature evenly distributed in the circulation pipeline, when having avoided ambient temperature ratio lower, the exposed pipeline of water heater or the frozen problem of joint have guaranteed that the reliability of preventing frostbite of water heater is better, and then has avoided because the exposed pipeline freezes, causes the heat exchanger of water heater or the problem of pipeline frost crack.
In practical application, as shown in fig. 2, the water heater includes a first temperature sensor 101, and the first temperature sensor 101 is mounted on a housing of the water heater. The device acquires the external environment temperature by acquiring the detection data of the first temperature sensor in real time. Of course, the external ambient temperature of the present application is not limited to be obtained by using the above device, and the device of the present application may also obtain the temperature of the location of the water heater through networking or the like.
In a specific embodiment, the first threshold T is1The value of can be T less than or equal to-20 DEG C1At most-10 ℃. In a more specific embodiment, the first threshold T is set1-15 ℃. Of course, the first threshold value T is1The method is not limited to the above values, and those skilled in the art can flexibly set the values according to actual situations.
In order to further avoid freezing of the exposed pipe or joint of the water heater, thereby further ensuring better anti-freezing reliability of the water heater, according to a specific embodiment of the present application, the control unit includes a determination module and a control module, wherein the determination module is configured to determine the predetermined time period according to the external environment temperature and a first threshold value when the external environment temperature is less than or equal to the first threshold value; the control module is used for controlling the circulating pump to be started for the preset time and then to be closed.
In practical application, the predetermined time period can be calculated according to actual needs in the field. In a specific embodiment, the predetermined time T is the first threshold T1A multiple a of the difference from the above-mentioned external ambient temperature T, i.e., T ═ T1-T) x A, said multiple A being any value, in order to further avoid the water heaterThe above multiple may be set to a larger value when the exposed pipe is frozen.
In a more specific embodiment of the present application, the multiple a is 2, and the predetermined time period is 2 times a difference between the first threshold and the external ambient temperature, i.e., T is (T ═ T)1-T)×2。
In another specific embodiment of the present application, as shown in fig. 2, the circulation pipeline includes a water inlet pipeline 102, a heat exchanger 103, a water outlet pipeline 104, and a water return pipeline 105, which are sequentially connected end to end, the water heater further includes a heater 106, the heater 106 is located at one side of the heat exchanger 103, the apparatus further includes a second obtaining unit, a first determining unit, and a starting unit, wherein the second obtaining unit is configured to obtain a water inlet temperature and a water outlet temperature in real time, the water inlet temperature is a water temperature of the water inlet pipeline, and the water outlet temperature is a water temperature of the water outlet pipeline; the first determining unit is configured to determine whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold; the starting unit is configured to start the circulation pump and the heater to heat the water circulating in the circulation pipe when the temperature of the inlet water or the temperature of the outlet water is less than or equal to the second threshold value. The device controls the circulating pump and the heater to be started to circularly heat water in the circulating pipeline by monitoring the water temperature in the water inlet pipeline and the water temperature in the water outlet pipeline in real time under the condition that the water inlet temperature or the water outlet temperature is less than or equal to the second threshold value, so that the water in the circulating pipeline is further prevented from being frozen, and the water heater is further ensured to have better anti-freezing reliability.
In practical application, the water heater may be any feasible water heater in the prior art, such as a gas water heater, an electric water heater, and the like. In another specific embodiment of the present application, the water heater is a gas water heater, and the heater is a burner of the gas water heater.
In a specific embodiment, as shown in fig. 2, the water heater includes a second temperature sensor 107 and a third temperature sensor 108, the second temperature sensor 107 is mounted on the water inlet pipe 102, the third temperature sensor 108 is mounted on the water outlet pipe 104, and the device obtains the water inlet temperature and the water outlet temperature through the second temperature sensor and the third temperature sensor.
In the practical application process, a person skilled in the art can flexibly set the value of the second threshold according to the practical situation. In another specific embodiment of the present application, the second threshold T is set to be greater than the first threshold T2The value of can be more than or equal to T at 1 DEG C2Less than or equal to 5 ℃. Specifically, the second threshold value T is set2＝3℃。
According to another specific embodiment of the present application, the apparatus further includes a second determination unit and a shutdown unit, wherein the second determination unit is configured to, when the inlet water temperature or the outlet water temperature is less than or equal to the second threshold, activate the circulation pump and the heater to heat water circulating in the circulation pipe, and then determine whether the inlet water temperature or the outlet water temperature is greater than or equal to a third threshold, and the third threshold is greater than the second threshold; the closing unit is configured to close the heater and the circulation pump when the intake water temperature or the discharge water temperature is greater than or equal to the third threshold value.
Specifically, the third threshold value T is set3The value of (A) can be more than or equal to T at 10 DEG C2Less than or equal to 25 ℃. In a more specific embodiment, the third threshold T is set to be greater than the first threshold T3At 25 ℃. Of course, the third threshold value T3The method is not limited to the above values, and those skilled in the art can flexibly set the values according to actual situations.
In practical applications, as shown in fig. 2, the water heater further includes a water flow sensor 109, the water flow sensor 109 is mounted on the water inlet pipe 102, and the heater 106 includes a gas inlet 110, a safety valve 111 and a proportional valve 112.
In another specific embodiment of the present application, the above water heaterThe anti-freezing control flow of the gas water heater is shown in fig. 3. As shown in fig. 3, first, the gas water heater is in a standby state by supplying water, gas and electricity; then the water inlet temperature T is obtained in real timeIntoAnd the temperature T of the outlet waterGo outAnd determining the temperature T of the water supplyIntoAnd the above-mentioned outlet water temperature TGo outWhether or not it is less than or equal to the second threshold value T2At TInto≤T2Or TGo out≤T2Under the condition of (1), starting a circulating pump and a heater, and entering an anti-freezing protection heating state; then, the temperature T of the inlet water is determinedIntoAnd the above-mentioned outlet water temperature TGo outWhether it is greater than or equal to the third threshold value T3At TInto≥T3And TGo out≥T3Under the condition of (1), the circulating pump and the heater are closed, so that the water heater is out of the anti-freezing protection heating state, and whether the external environment temperature T is less than or equal to a first threshold value T or not is judged1Where T is less than or equal to T1When the water heater is started, the circulating pump is started, the water heater enters a back circulation anti-freezing state, and the preset time period T for starting the circulating pump is equal to (T)1-T) x a; and finally, the water heater exits the rear circulation anti-freezing state and continues to stand by.
The anti-freezing control device of the water heater comprises a processor and a memory, wherein the first acquisition unit, the control unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. One or more than one inner core can be set, and the problem of poor anti-freezing reliability of the water heater in the prior art is solved by adjusting the parameters of the inner cores.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium having a program stored thereon, where the program, when executed by a processor, implements the above-mentioned antifreeze control method for a water heater.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program is used for executing the anti-freezing control method of the water heater when running.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, at least the following steps are realized:
step S101, acquiring the external environment temperature in real time;
and step S102, controlling the circulating pump to start for a preset time period to enable the water in the circulating pipeline to circularly flow under the condition that the external environment temperature is less than or equal to a first threshold value.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:
step S101, acquiring the external environment temperature in real time;
and step S102, controlling the circulating pump to start for a preset time period to enable the water in the circulating pipeline to circularly flow under the condition that the external environment temperature is less than or equal to a first threshold value.
According to still another exemplary embodiment of the present application, there is also provided a water heater system, as shown in fig. 2, including a water heater including a circulation pipe and a circulation pump 100 on the circulation pipe, and a controller 200; the controller 200 includes a control program for performing any of the above methods.
The water heater system comprises a water heater and a controller, wherein the controller is used for executing any one of the methods. The above-mentioned water heater system of this application, the hydrologic cycle in the circulation pipeline through controller control water heater when external ambient temperature is lower flows, can stir the water in the circulation pipeline like this, make the temperature evenly distributed in the circulation pipeline, when having avoided ambient temperature ratio lower, the exposed pipeline of water heater or the problem that the joint freezes, it is better to have guaranteed the reliability of preventing frostbite of water heater system, and then avoided because the exposed pipeline freezes, cause the heat exchanger of water heater or the problem that the pipeline freezes and splits.
In practical applications, the controller is not limited to the position shown in fig. 2, but may be located outside the water heater.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the anti-freezing control method of the water heater, firstly, the external environment temperature is obtained; and then, when the external environment temperature is less than or equal to the first threshold value, starting the circulating pump and operating the circulating pump for a preset time to enable the water in the circulating pipeline to circularly flow. According to the method, when the external environment temperature is lower, the water in the circulating pipeline of the water heater is controlled to circularly flow, so that the water in the circulating pipeline can be stirred, the water temperature in the circulating pipeline is uniformly distributed, the problem that the exposed pipeline or the joint of the water heater is frozen when the environment temperature is lower is avoided, the anti-freezing reliability of the water heater is better, and the problem that the heat exchanger or the pipeline of the water heater is frozen due to the fact that the exposed pipeline is frozen is further avoided.
2) The anti-freezing control device of the water heater obtains the external environment temperature through the first obtaining unit; when the external environment temperature is smaller than or equal to a first threshold value, the control unit starts the circulating pump and enables the circulating pump to run for a preset time to enable the water in the circulating pipeline to circularly flow. The above-mentioned device of this application, the hydrologic cycle in the circulation pipeline flows when external ambient temperature is lower in the control water heater, can stir the water in the circulation pipeline like this for temperature evenly distributed in the circulation pipeline, when having avoided ambient temperature ratio lower, the exposed pipeline of water heater or the frozen problem of joint have guaranteed that the reliability of preventing frostbite of water heater is better, and then has avoided because the exposed pipeline freezes, causes the heat exchanger of water heater or the problem of pipeline frost crack.
3) The water heater system of the present application includes a water heater and a controller for performing any of the above methods. The above-mentioned water heater system of this application, the hydrologic cycle in the circulation pipeline through controller control water heater when external ambient temperature is lower flows, can stir the water in the circulation pipeline like this, make the temperature evenly distributed in the circulation pipeline, when having avoided ambient temperature ratio lower, the exposed pipeline of water heater or the problem that the joint freezes, it is better to have guaranteed the reliability of preventing frostbite of water heater system, and then avoided because the exposed pipeline freezes, cause the heat exchanger of water heater or the problem that the pipeline freezes and splits.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A freeze protection control method of a water heater including a circulation pipe and a circulation pump on the circulation pipe, the method comprising:
acquiring the external environment temperature in real time;
and controlling the circulating pump to start for a preset time to enable the water in the circulating pipeline to circularly flow under the condition that the external environment temperature is less than or equal to a first threshold value.
2. The method of claim 1, wherein controlling the circulation pump to be activated for a predetermined period of time to circulate water in the circulation pipe in a case where the external ambient temperature is less than or equal to a first threshold value comprises:
determining the preset time according to the external environment temperature and a first threshold value under the condition that the external environment temperature is less than or equal to the first threshold value;
and controlling the circulating pump to be switched off after the circulating pump is started for the preset time.
3. The method of claim 1, wherein the circulation conduit includes an inlet conduit, a heat exchanger, an outlet conduit, and a return conduit in end-to-end communication, the water heater further including a heater positioned to one side of the heat exchanger, the method further comprising:
acquiring water inlet temperature and water outlet temperature in real time, wherein the water inlet temperature is the water temperature of the water inlet pipeline, and the water outlet temperature is the water temperature of the water outlet pipeline;
determining whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold;
and under the condition that the inlet water temperature or the outlet water temperature is less than or equal to the second threshold value, starting the circulating pump and the heater to heat the water circulating in the circulating pipeline.
4. The method of claim 3, wherein, in a case where the inlet water temperature or the outlet water temperature is less than or equal to the second threshold value, after activating the circulation pump and the heater to heat the water circulating in the circulation pipe, the method further comprises:
determining whether the inlet water temperature or the outlet water temperature is greater than or equal to a third threshold, wherein the third threshold is greater than the second threshold;
and under the condition that the inlet water temperature or the outlet water temperature is greater than or equal to the third threshold value, the heater and the circulating pump are turned off.
5. An anti-freezing control device for a water heater, the water heater comprising a circulation pipe and a circulation pump provided on the circulation pipe, the device comprising:
the first acquisition unit is used for acquiring the external environment temperature in real time;
a control unit for controlling the circulation pump to be started for a predetermined time period to circulate the water in the circulation pipe if the external ambient temperature is less than or equal to a first threshold value.
6. The apparatus of claim 5, wherein the control unit comprises:
the determining module is used for determining the preset time according to the external environment temperature and a first threshold value under the condition that the external environment temperature is less than or equal to the first threshold value;
and the control module is used for controlling the circulating pump to be closed after the preset time period is started.
7. The apparatus of claim 5, wherein the circulation pipeline comprises a water inlet pipeline, a heat exchanger, a water outlet pipeline and a water return pipeline which are sequentially communicated end to end, the water heater further comprises a heater, the heater is positioned at one side of the heat exchanger, and the apparatus further comprises:
the second acquisition unit is used for acquiring the water inlet temperature and the water outlet temperature in real time, wherein the water inlet temperature is the water temperature of the water inlet pipeline, and the water outlet temperature is the water temperature of the water outlet pipeline;
a first determination unit configured to determine whether the inlet water temperature or the outlet water temperature is less than or equal to a second threshold;
and the starting unit is used for starting the circulating pump and the heater under the condition that the water inlet temperature or the water outlet temperature is less than or equal to the second threshold value so as to heat the water circulating in the circulating pipeline.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program performs the method of any one of claims 1 to 4.
9. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 4.
10. A water heater system, comprising:
the water heater comprises a circulating pipeline and a circulating pump positioned on the circulating pipeline;
a controller comprising a control program for performing the method of any one of claims 1 to 4.
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| CN202110821651.7A CN113531914A (en) | 2021-07-20 | 2021-07-20 | Anti-freezing control method and control device for water heater and water heater system |
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| CN202110821651.7A CN113531914A (en) | 2021-07-20 | 2021-07-20 | Anti-freezing control method and control device for water heater and water heater system |
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