CN114136008B - Water storage tank sterilization control method and device and water heater - Google Patents
Water storage tank sterilization control method and device and water heater Download PDFInfo
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- CN114136008B CN114136008B CN202111249583.8A CN202111249583A CN114136008B CN 114136008 B CN114136008 B CN 114136008B CN 202111249583 A CN202111249583 A CN 202111249583A CN 114136008 B CN114136008 B CN 114136008B
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- storage tank
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- water storage
- temperature
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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
- F24H9/0042—Cleaning arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
-
- 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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
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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
Abstract
The invention discloses a water storage tank sterilization control method, a water storage tank sterilization control device and a water heater, wherein the water storage tank sterilization control method comprises a heating device and a water storage tank; in the primary sterilization operation monitoring process, when the total water yield in the water storage tank is monitored to reach 300L for 3 days, determining whether to start the heating device according to the time parameter and the temperature parameter so as to perform sterilization treatment in the water storage tank; when the total water yield in the water storage tank is monitored to be less than 300L for 3 days, starting a heating device and performing primary sterilization treatment on the water storage tank; in the technical scheme, the sterilization operation in different modes is performed by judging the hot water quantity in the actual use process.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a water storage tank sterilization control method and device and a water heater.
Background
The water storage type water heater is provided with a water storage tank for storing hot water, and various bacteria are easy to grow when the water temperature in the water storage tank is low, and Legionella is especially easy to grow.
Legionella can be propagated in large quantities at 25-42℃and its survival temperature is as high as 55-60 ℃. When the storage type water heater is not used for a long time or the water temperature in the storage tank is maintained at a lower temperature for a long time, a problem of a great deal of bacteria growth in the storage tank may occur.
The existing water heater can eliminate bacteria in the water storage tank by setting sterilization operation, and the water storage type water heater with the sterilization operation function at present often needs to manually enter the sterilization operation function to perform sterilization operation on the water storage tank, so that a plurality of inconveniences exist in use.
If the water in the water storage tank is not used for a long time, various bacteria are easy to grow in the water storage tank.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a water storage tank sterilization control method, a water storage tank sterilization control device and a water heater, which perform sterilization operation in different modes by judging hot water quantity in the actual use process.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the sterilization control method of the water storage tank comprises a heating device and the water storage tank, wherein the heating device is used for heating and sterilizing the water storage tank;
in the primary sterilization operation monitoring process, when the total water yield in the water storage tank is monitored to reach 300L for 3 days, determining whether to start the heating device according to the time parameter and the temperature parameter so as to perform sterilization treatment in the water storage tank;
when the total water yield in the water storage tank is monitored to be less than 300L for 3 days, the heating device is started and the water storage tank is subjected to primary sterilization treatment.
Preferably, when the total water yield of the water storage tank is monitored to reach 300L for 3 days; the monitored temperature parameter comprises 40 ℃, and the time parameter comprises the duration of the water temperature below 40 ℃; when the duration of the water temperature is 12 hours below 40 ℃; and starting the heating device and performing primary sterilization treatment on the water storage tank.
Preferably, when the duration of the water temperature is 2 hours but not 12 hours below 40 ℃, the hot water is regarded as being in the low temperature section once, and when the hot water in the water storage tank is in the low temperature section 3 times continuously, the heating device is started and the water storage tank is subjected to one sterilization treatment.
Preferably, the sterilization treatment means that the heating device heats the water in the water storage tank to a temperature higher than 65 ℃ for 30min.
Preferably, when the total water yield of the water storage tank is monitored to reach 300L for 3 days; the monitored temperature parameter comprises 65 ℃, and the time parameter comprises the duration of the water temperature above 65 ℃; if the water temperature in the water storage tank is monitored to be higher than 65 ℃ and the duration time reaches 30min, the sterilization treatment is considered to be finished once, and the next sterilization operation monitoring is carried out.
A computer-readable storage medium storing a computer program, wherein the program when executed by a processor implements a storage tank sterilization control method as described above.
The water storage tank sterilization control device adopts the water storage tank sterilization control method, and further comprises the following steps:
the timing module is used for acquiring time parameters;
the flow monitor is arranged at the water outlet of the water storage tank and is used for acquiring water flow parameters of the water storage tank;
the temperature sensor is arranged in the water storage tank and used for acquiring temperature parameters in the water storage tank;
the first control module is used for determining whether the heating device is started to perform sterilization treatment on the water storage tank according to the acquired time parameter, water flow parameter and temperature parameter.
The water heater comprises the water storage tank sterilization control device, wherein the heating device is a first heat exchanger.
Preferably, the device also comprises a compressor, a four-way reversing valve, a second heat exchanger and a throttling mechanism; the compressor, the four-way reversing valve, the second heat exchanger, the throttling mechanism and the first heat exchanger sequentially form a closed-loop main heat exchange pipeline through connecting pipelines, and heat is further transferred to the water storage tank to achieve heating.
The beneficial effects of the invention are as follows: the method can comprehensively judge whether the water heater needs to perform degerming operation or not by combining the actual hot water usage condition of the water heater and the time of the water temperature in the water storage tank of the water heater in a low-temperature section and the times of the water temperature in the low-temperature section; thereby avoiding the occurrence of energy waste caused by unnecessary sterilization operation; the energy is saved to the maximum under the condition of ensuring effective sterilization.
Drawings
FIG. 1 is a schematic view of a water heater of the present invention;
FIG. 2 is a logic control diagram of the control mechanism of the present invention.
1, a compressor; 2. a four-way reversing valve; 3. a second heat exchanger; 4. a throttle mechanism; 5. a first heat exchanger; 6. a water storage tank; 7. a flow monitor; 8. a temperature sensor.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Embodiment one:
the sterilization control method of the water storage tank 6 comprises a heating device and the water storage tank 6, wherein the heating device is used for heating and sterilizing the water storage tank 6;
in the primary sterilization operation monitoring process, when the total water yield in the water storage tank 6 is monitored to reach 300L for 3 days, determining whether to start the heating device according to the time parameter and the temperature parameter so as to perform sterilization treatment in the water storage tank 6;
when the total water yield in the water storage tank 6 is monitored to be less than 300L for 3 days, the heating device is started and the water storage tank 6 is sterilized once.
In the embodiment of the invention, when the total water yield in the water storage tank 6 is monitored to reach 300L for 3 days; the monitored temperature parameter comprises 40 ℃, and the time parameter comprises the duration of the water temperature below 40 ℃; when the duration of the water temperature is 12 hours below 40 ℃; the heating device is started and the water storage tank 6 is sterilized once.
It is further preferred that the heating means is turned on and the water storage tank 6 is sterilized once when the duration of the water temperature reaches 2 hours but does not reach 12 hours below 40 c, and the hot water is once in the low temperature section, and when the hot water in the water storage tank 6 is continuously 3 times in the low temperature section.
Wherein the sterilization treatment means that the heating device heats the water in the water storage tank 6 to a temperature higher than 65 ℃ for 30min.
In the embodiment of the invention, when the total water yield in the water storage tank 6 is monitored to reach 300L for 3 days; the monitored temperature parameter comprises 65 ℃, and the time parameter comprises the duration of the water temperature above 65 ℃; if the water temperature in the water storage tank 6 is monitored to be higher than 65 ℃ and the duration time reaches 30min, the sterilization treatment is considered to be finished once, and the next sterilization operation monitoring is carried out.
Therefore, the invention can comprehensively judge whether the water heater needs to perform degerming operation by combining the actual hot water usage condition of the water heater and the time of the water temperature in the water storage tank 6 of the water heater in the low temperature section; thereby avoiding the occurrence of energy waste caused by unnecessary sterilization operation; the energy is saved to the maximum under the condition of ensuring effective sterilization.
The sterilization control device for the water storage tank adopts the sterilization control method for the water storage tank 6, and further comprises the following steps:
the timing module is used for acquiring time parameters;
the flow monitor 7 is arranged at the water outlet of the water storage tank 6 and is used for acquiring water flow parameters of the water storage tank 6;
the temperature sensor 8 is arranged in the water storage tank 6 and is used for acquiring temperature parameters in the water storage tank 6;
the first control module determines whether to start the heating device to perform sterilization treatment on the water storage tank 6 according to the acquired time parameter, water flow parameter and temperature parameter.
The water heater comprises the water storage tank 6 sterilization control device, wherein the heating device is a first heat exchanger 5.
The water heater also comprises a compressor 1, a four-way reversing valve 2, a second heat exchanger 3 and a throttling mechanism 4; the compressor 1, the four-way reversing valve 2, the second heat exchanger 3, the throttling mechanism 4 and the first heat exchanger 5 sequentially form a closed-loop main heat exchange pipeline through connecting pipelines so as to transfer heat to the water storage tank 6 to realize heating.
Wherein, the first heat exchanger 5 can heat the water storage tank 6 by direct heating or indirect heating; the direct heating means that the refrigerant directly releases heat to water in the water storage tank 6; the indirect heating means that the refrigerant directly releases heat to the intermediate heat carrier medium in the plate exchange, and the intermediate heat carrier medium releases heat to water in the water storage tank 6.
A computer-readable storage medium storing a computer program which, when executed by a processor, implements the method of controlling sterilization of a water storage tank 6 as described above.
Wherein, the specific program execution steps are as follows:
as shown in fig. 2, the node enters the control program at S0 and then proceeds to step S1.
In step S1, the amount of hot water used, the hot water temperature, and the duration corresponding to each water temperature are counted, and the process proceeds to step S2.
In step S2, it is determined whether the usage amount of hot water of the water heater reaches a certain amount within a period of time (e.g., in this example, it is determined whether the usage amount of hot water of the water heater reaches 300L within 3 days), in this example, if the usage amount of hot water of the water heater reaches 300L within 3 days, step S3 is entered, and otherwise step S24 is entered.
In step S3, the length of the period of time when the hot water in the water storage tank 6 is at low temperature is determined, if the length of the period of time when the hot water in the water storage tank 6 is at low temperature is greater than 12h, step S24 is entered, otherwise step S4 is entered.
In step S4, the temperature of the hot water in the water storage tank 6 is detected, and the flow proceeds to step S5.
In step S5, it is detected whether the water temperature in the water storage tank 6 is lower than 40 ℃, if the water temperature is lower than 40 ℃, step S7 is entered, otherwise step S6 is entered.
In step S6, it is determined whether the temperature of the hot water in the water storage tank 6 is greater than or equal to 65 ℃, if the temperature of the hot water is greater than or equal to 65 ℃, the step S8 is performed, and if not, the step S11 is performed.
In the step S11, the water temperature is not less than 65 ℃ for time b, and then the step S4 is carried out.
In step S7, the control means accumulates the time when the temperature of the hot water in the water tank 6 is low, and then proceeds to step S9.
In step S8, the time b when the water temperature is more than or equal to 65 ℃ is counted, and then the process proceeds to step S10.
In the step S10, the duration of the time b with the water temperature not less than 65 ℃ is judged, if b is not less than 30min, the step S23 is carried out, and otherwise, the step S4 is carried out.
In step S9, the duration of the hot water in the water storage tank 6 at the low temperature is determined, if the duration of the hot water in the water storage tank 6 at the low temperature is more than 12h, the process proceeds to step S24, otherwise, the process proceeds to step 12.
In step S12, it is determined whether the water temperature in the water storage tank 6 is lower than 40 ℃ for 2h, if yes, step S13 is entered, otherwise step S4 is entered.
In step S13, the number of times a that the water temperature is lower than 40 ℃ is accumulated 1 time, and then the process proceeds to step S14.
In step S14, it is determined whether the number of times a of water temperature lower than 40 ℃ reaches 3, if yes, step S15 is entered, otherwise step S4 is entered.
In step S15, it is determined whether the target temperature for the heating operation of the current stage water heater is equal to or higher than 65 ℃, if yes, the process proceeds to step S17, otherwise the process proceeds to step S16.
In step S16, the target heating temperature of the water heater is adjusted to 65 ℃, and the process proceeds to step S17.
In step S17, the temperature of the hot water in the water storage tank 6 is detected, and the flow proceeds to step S18.
In step S18, it is determined whether the temperature of the hot water in the water tank is greater than or equal to 65 ℃, if yes, the process proceeds to step S20, otherwise, the process proceeds to step S19.
In step S19, the accumulated time b at which the water temperature is not less than 65 ℃ is cleared, and the process proceeds to step S17.
In step S20, the accumulated time b at which the water temperature is not less than 65 ℃ is accumulated, and the process proceeds to step S21.
In step S21, the water heater is operated normally, the water temperature is maintained at 65 ℃ or higher, and the process proceeds to step S22.
In step S22, it is determined whether the accumulated time b of the water temperature not less than 65 ℃ is not less than 30min, if yes, the step S23 is entered, otherwise the step S15 is entered.
In step S23, the data recorded in the parameters a and b are cleared, and the process proceeds to step S30, where the process ends.
In step S24, the target heating temperature of the water heater is adjusted to 65 ℃, and the process proceeds to step S25.
In step S25, the water heater performs a heating operation, and the process proceeds to step S26.
In step S26, it is determined whether the water temperature in the water storage tank 6 is greater than or equal to 65 ℃, if yes, the process proceeds to step S27, otherwise, the process proceeds to step S25.
In step S27, the duration b of the water temperature of 65 ℃ or higher is accumulated, and the process proceeds to step S29.
In step S29, it is determined whether the accumulated time b of the water temperature not less than 65 ℃ is not less than 30min, if yes, the process proceeds to step S29, otherwise, the process proceeds to step S28.
In step S28, the water heater is operated normally, maintaining the water temperature at 65 ℃.
The beneficial effects of the invention are as follows: the method can comprehensively judge whether the water heater needs to perform degerming operation or not by combining the actual hot water usage condition of the water heater and the time of the water temperature in the water storage tank of the water heater in a low-temperature section and the times of the water temperature in the low-temperature section; thereby avoiding the occurrence of energy waste caused by unnecessary sterilization operation; the energy is saved to the maximum under the condition of ensuring effective sterilization.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The sterilization control method of the water storage tank comprises a heating device and a water storage tank (6), wherein the heating device is used for heating and sterilizing the water storage tank (6); the method is characterized in that;
in the primary sterilization operation monitoring process, when the total water yield in the water storage tank (6) is monitored to reach 300L for 3 days, determining whether to start the heating device according to the time parameter and the temperature parameter so as to perform sterilization treatment in the water storage tank (6); the monitored temperature parameters include 40 ℃ and 65 ℃, the time parameters including a duration of water temperature below 40 ℃ and a duration of water temperature above 65 ℃;
the monitored temperature parameter comprises 40 ℃, and the time parameter comprises the duration of the water temperature below 40 ℃; when the duration of the water temperature is 12 hours below 40 ℃; starting the heating device and performing primary sterilization treatment on the water storage tank (6); when the duration of the water temperature is 2 hours but not 12 hours below 40 ℃, the hot water is regarded as being in a low-temperature section once, and when the hot water in the water storage tank (6) is in the low-temperature section for 3 times continuously, the heating device is started and the water storage tank (6) is subjected to primary sterilization treatment;
when the total water yield in the water storage tank (6) is monitored to be less than 300L for 3 days, starting a heating device and performing primary sterilization treatment on the water storage tank (6);
the water in the water storage tank (6) is monitored to Wen Dayu ℃ and the duration reaches 30min, so that the sterilization treatment is finished once, and the next sterilization operation monitoring is carried out.
2. A method of controlling the sterilization of a water storage tank according to claim 1, wherein the sterilization treatment means that the heating means heats the water in the water storage tank (6) to Wen Dayu ℃ for 30 minutes.
3. A computer-readable storage medium storing a computer program, wherein the program, when executed by a processor, implements the water storage tank sterilization control method according to any one of claims 1-2.
4. A sterilization control device for a water storage tank, which is characterized in that; the water storage tank sterilization control method according to any one of claims 1 to 2, further comprising:
the timing module is used for acquiring time parameters;
the flow monitor (7) is arranged at the water outlet of the water storage tank (6) and is used for acquiring water flow parameters of the water storage tank (6);
the temperature sensor (8) is arranged in the water storage tank (6) and is used for acquiring temperature parameters in the water storage tank (6);
the first control module determines whether to start the heating device to perform sterilization treatment on the water storage tank (6) according to the acquired time parameter, water flow parameter and temperature parameter.
5. A water heater, characterized in that; comprising a storage tank (6) sterilization control device according to claim 4, wherein the heating device is a first heat exchanger (5).
6. A water heater as defined in claim 5, wherein; the device also comprises a compressor (1), a four-way reversing valve (2), a second heat exchanger (3) and a throttling mechanism (4); the compressor (1), the four-way reversing valve (2), the second heat exchanger (3), the throttling mechanism (4) and the first heat exchanger (5) sequentially form a closed-loop main heat exchange pipeline through connecting pipelines, and heat is transferred to the water storage tank (6) to achieve heating.
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| CN202111249583.8A CN114136008B (en) | 2021-10-26 | 2021-10-26 | Water storage tank sterilization control method and device and water heater |
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| CN202111249583.8A CN114136008B (en) | 2021-10-26 | 2021-10-26 | Water storage tank sterilization control method and device and water heater |
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| CN114136008A CN114136008A (en) | 2022-03-04 |
| CN114136008B true CN114136008B (en) | 2023-06-23 |
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| JP3935416B2 (en) * | 2002-10-29 | 2007-06-20 | 株式会社ガスター | Hot water storage water heater |
| JP4033461B2 (en) * | 2003-02-28 | 2008-01-16 | 株式会社ノーリツ | Hot water storage type hot water supply apparatus and control method for resuming hot water supply thereof |
| CN104180529B (en) * | 2013-05-22 | 2017-02-08 | 广东美的暖通设备有限公司 | Water heater and control method thereof |
| CN108375202A (en) * | 2016-11-18 | 2018-08-07 | 廖行良 | Drink the freeze proof accumulation of energy hot spring solar water heater of antibacterial of balneation three |
| CN111217420B (en) * | 2018-11-27 | 2022-12-13 | 青岛经济技术开发区海尔热水器有限公司 | Sterilization control method for zero-cold water system of water heater |
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