CN110726252A - Control method of water heater and water heater applying control method - Google Patents
Control method of water heater and water heater applying control method Download PDFInfo
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- CN110726252A CN110726252A CN201910936493.2A CN201910936493A CN110726252A CN 110726252 A CN110726252 A CN 110726252A CN 201910936493 A CN201910936493 A CN 201910936493A CN 110726252 A CN110726252 A CN 110726252A
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- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 231
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009835 boiling Methods 0.000 claims 1
- 238000003287 bathing Methods 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 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
Abstract
The invention relates to a control method of a water heater and the water heater using the same, wherein the control method comprises the following steps: s1, receiving a preheating mode instruction; s2, detecting a water flow value; s3, analyzing the water flow value, and when the latter group of data is obviously higher than the former group of data, sending an instruction for entering a common shower mode; s4, continuously detecting the water flow value; and S5, receiving a preheating mode command when the water flow value is smaller than the set value. According to the control method of the water heater, whether the water valve is opened or not and then the preheating mode is closed can be judged through the water flow, bathing when the preheating is not completed is avoided, the water pump is shut down in the bathing process to cause water flow fluctuation, and therefore water temperature fluctuation is caused.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method of a water heater and the water heater using the same.
Background
The zero-cold-water gas water heater has become a trend in the water heater industry because the zero-cold-water gas water heater can realize that hot water can be used immediately after being started, and when the preheating function is started, a built-in circulating pump runs to drive water stored in an external hot water pipe and a water return pipe to circularly flow and realize preheating.
The water pump of the existing zero-cold water gas water heater operates to enable water in an internal pipeline to circularly flow, and the water heater detects a water flow signal, the heating is started, the circular preheating can be completed within 3-5 minutes generally, in the circular preheating process, a user needs to use hot water for bathing, because the water heater is already in the starting state, the water heater generally does not recognize the starting state and keeps the preheating mode, at the moment, because the user always uses water, most of the hot water in the preheating mode flows out to be used by the user, the water inlet temperature is not up to the condition of ending the preheating mode, the water pump continuously rotates until the set time is up and stops, and the water pump operation in-process can produce the reinforcing effect to water pressure, and the water pump stops suddenly after a period of time of operation and can lead to the user obviously to feel that discharge diminishes and the temperature obviously fluctuates, influences user's use and experiences.
Disclosure of Invention
The invention provides a control method of a water heater for solving the problems, which comprises the following steps:
s1, receiving a preheating mode instruction;
s2, detecting a water flow value;
s3, analyzing the water flow value, and when the latter group of data is obviously higher than the former group of data, sending an instruction for entering a common shower mode;
s4, continuously detecting the water flow value;
and S5, receiving a preheating mode command when the water flow value is smaller than the set value.
Preferably, in S2, every time t1Detecting the water flow value once, when detecting the water flow for n times, obtaining a first group of water flow values which are a [0] in sequence]、a[1]...a[n-1](ii) a When the (n + 1) th water flow value a [ n ] is detected]Time, water flow value a [ n ]]A 0]And replacing, obtaining a second group of water flow values which are a [1] in sequence]、a[2]...a[n]And so on, when the flow value a [ X + n-1 ] of the nth + X water flow is detected]Then X +1 groups of water flow values are obtained, wherein X is more than or equal to 0.
Preferably, in S3, the processor sums the X +1 groups to sum [0] respectively]、sum[1]...sum[X]If at t2Internal determination sum [0]]＜sum[1]＜...＜sum[X-1]＜sum[X]Judging that the water flow continuously rises, and detecting that the current water flow is Y under the condition that Y is more than sum [ X ]]At/n + △ v, it will issueAnd entering a common shower mode instruction.
Preferably, in S3, △ v is 1.
Preferably, in S4, the set value is 2L/min.
Preferably, in S2, a boost mode can also be received; then at S3 the water flow rate value is analyzed and when the latter set of data is significantly higher than the former set of data, a command to enter a pressurized shower mode is issued.
The other technical scheme of the invention is realized as follows: the water heater comprises an internal water path, and further comprises a circulating system and a processor, wherein the circulating system comprises a water flow sensor, a water pump and a circulating water path, the circulating water path is communicated with the internal water path, the water pump drives the internal water path to flow, the processor controls the water pump to start and stop, the water flow sensor senses the water flow value in the internal water path, and the detected water flow value is fed back to the processor.
The invention has the beneficial effects that: according to the control method of the water heater, whether the water valve is opened or not and then the preheating mode is closed can be judged through the water flow, bathing when the preheating is not completed is avoided, the water pump is shut down in the bathing process to cause water flow fluctuation, and therefore water temperature fluctuation is caused.
Drawings
FIG. 1 is a schematic structural diagram of a water heater according to the present invention in a preheating mode;
FIG. 2 is a schematic view of the water heater body of the present invention in a general bathing mode;
FIG. 3 is a control line block diagram of the processor of the present invention;
fig. 4 is a flowchart of a control method of a water heater according to the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings in which:
as shown in fig. 1-3, a control method of a water heater includes a water heater body 1, a circulation system 2, a processor 3, an external water path 4, an internal water path 5 and a water outlet 6, wherein the external water path 4 and the water outlet 6 are respectively communicated with the internal water path 5 for water inlet and outlet, the processor 3 can receive instructions of a preheating mode and a pressurizing mode, the circulation system 2 includes a water flow sensor 21, a water pump 22, a circulation water path 23, a water valve 24 and a one-way valve 25, the circulation water path 23 is communicated with the internal water path 5 for circulating water in the internal water path 5, the water valve 24 is communicated with the circulation water path 23 for controlling water outlet of the water outlet 5, the water pump 22 drives water in the circulation water path 23 to flow, the water flow sensor 21 detects water flow in the circulation water path 23 and feeds back data thereof to the processor 3, the one-way valve 25 is disposed between the circulation water path 23 and the internal water, preventing water from flowing backwards. The water heater body 1 is provided with a common bathing mode and a pressurized bathing mode, when the water heater body 1 is in the common bathing mode, the water valve 24 is opened, and water flows out from the water outlet 6 at a normal speed; when the water heater body 1 is in the pressurizing bath mode, the water valve 24 is opened, the water pump 22 is started, and water flows out from the water outlet 6 at a higher speed. The processor 3 controls the water heater body 1 and the water pump 22, so that the water heater body 1 can enter a common bathing mode or a pressurized bathing mode, and different use experiences are brought to users.
As shown in fig. 4, the method includes the steps of:
And 2, the processor 3 receives a preheating mode instruction, and the water pump 22 is started to drive water to flow through the circulating system 2.
And 3, detecting the water flow value by the water flow sensor 21.
At intervals of time t1The water flow sensor 21 detects the primary water flow value, and when detecting the water flow for n times, the first group of water flow values are obtained as a [0] in sequence]、a[1]...a[n-1](ii) a When the (n + 1) th water flow value a [ n ] is detected]Time, water flow value a [ n ]]A 0]And replacing, obtaining a second group of water flow values which are a [1] in sequence]、a[2]...a[n]And so on, when the flow value a [ X + n-1 ] of the nth + X water flow is detected]Then, X +1 group water flow values are obtained, wherein X is more than or equal to 0.
And 4, analyzing the water flow value by the processor 3, and when the latter group of data is obviously higher than the former group of data, sending an instruction of entering a common shower mode by the processor 3 to enable the water heater body 1 to enter the common shower mode, and slowly stopping the water pump 22.
If the sum values of the groups are kept unchanged or slightly fluctuate, the water valve 24 is judged to be closed, and the water flow sensor 21 continuously detects the water flow.
And 5, continuously detecting the water flow value by the water flow sensor 21.
And 6, when the water flow value is smaller than the set value, the processor 3 receives a preheating mode instruction, and the water pump 22 is started.
After the preheating mode is closed, when the water flow value detected by the water flow sensor 21 is less than 2L/min, it is determined that the water valve 24 is not opened by the user, or the water valve 24 is opened to a smaller extent, and the water heater body 1 fails to enter the ordinary bathing mode, and enters the preheating mode again.
When the water flow value detected by the water flow sensor 21 is greater than 2L/min, it is determined that the water valve 24 is opened by the user, and the water heater body 1 is heated in the ordinary bathing mode.
And 7, if the preheating mode is kept for 45min, the water heater body 1 does not enter the common bathing mode, and the processor 3 controls to close the water heater body 1.
In step 2, the user can also select to open the pressurizing mode, after the pressurizing mode is opened, in step 4, after the preheating mode is closed, the processor 3 sends an instruction of entering the pressurizing bath mode, the water heater body 1 enters the pressurizing bath mode, the water pump 22 keeps starting, and in the mode, the water flow can be increased, so that the user can adjust the water pressure according to the self requirement.
After the processor 3 receives the preheating mode instruction, when the water heater body 1 heats water to the set temperature, the water heater body 1 stops heating, the water pump 22 keeps starting to drive the water circulation for 20-60s, the water heater body 1 continues heating, the continuous heating of the water heater 1 is avoided, and energy can be saved.
If the water flow sensor 21 cannot identify the water flow for 3 times within 10min in the detection process, the processor 3 controls the water flow sensor 21 to be turned off.
[ example 1]
In this embodiment, if X is 10, n +10, then in step 3, the water flow sensor 21 detects the water flow value once every 20ms, and when 10 times of water flow are detected, a first group of water flow values are obtained, which are a [0] and a [1]. a [9] in sequence; when the 10 th water flow value a 10 is detected, the water flow value a 10 replaces a 0 to obtain a second group of water flow values a 1 and a 2.. a 10 in sequence, and so on, and when the 20 th water flow value a 19 is detected, 11 groups of water flow values are obtained.
And 4, summing the components by the processor 3 to obtain sum [0] and sum [1]. sum [10], if the sum [0] is less than sum [1] <. < sum [9] < sum [10] within 5s, judging that the water flow continuously rises, under the condition, detecting that the current water flow value is Y by the water flow sensor 21, and when the Y is more than sum [10]/10+1, judging that the water valve 24 is opened.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.
Claims (7)
1. A control method of a water heater is characterized by comprising the following steps:
s1, receiving a preheating mode instruction;
s2, detecting a water flow value;
s3, analyzing the water flow value, and when the latter group of data is obviously higher than the former group of data, sending an instruction for entering a common shower mode;
s4, continuously detecting the water flow value;
and S5, receiving a preheating mode command when the water flow value is smaller than the set value.
2. The control method of a water heater as claimed in claim 1, wherein, in S2,at intervals of time t1Detecting the water flow value once, when detecting the water flow for n times, obtaining a first group of water flow values which are a [0] in sequence]、a[1]...a[n-1](ii) a When the (n + 1) th water flow value a [ n ] is detected]Time, water flow value a [ n ]]A 0]And replacing, obtaining a second group of water flow values which are a [1] in sequence]、a[2]...a[n]And so on, when the flow value a [ X + n-1 ] of the nth + X water flow is detected]Then X +1 groups of water flow values are obtained, wherein X is more than or equal to 0.
3. The control method of a water heater as claimed in claim 2, wherein the processor sums the X +1 groups to sum [0] S3]、sum[1]...sum[X]If at t2Internal determination sum [0]]＜sum[1]＜...＜sum[X-1]＜sum[X]Judging that the water flow continuously rises, and detecting that the current water flow is Y under the condition that Y is more than sum [ X ]]And when the voltage is/n + △ v, a command for entering the ordinary shower mode is sent out.
4. The control method of a water heater as claimed in claim 3, wherein in S3, △ v is 1.
5. The control method of a water heater as claimed in claim 1, wherein in S4, the set value is 2L/min.
6. The control method of the recognition of boiling water for a zero-cold water apparatus as set forth in any one of claims 1 to 5, wherein in S2, a pressurizing mode is further received; then at S3 the water flow rate value is analyzed and when the latter set of data is significantly higher than the former set of data, a command to enter a pressurized shower mode is issued.
7. A water heater using the control method of the water heater according to claims 1-6, the water heater comprising an internal water path (5), characterized in that the water heater further comprises a circulation system (2) and a processor (3), the circulation system (2) comprises a water flow sensor (21), a water pump (22) and a circulation water path (23), the circulation water path (23) is communicated with the internal water path (5), the water pump (22) drives the internal water path (5) to flow, the processor (3) controls the water pump (22) to start and stop, the water flow sensor (21) senses the water flow value in the internal water path (5), and feeds the sensed water flow value back to the processor (3).
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| CN201910936493.2A CN110726252A (en) | 2019-09-29 | 2019-09-29 | Control method of water heater and water heater applying control method |
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| CN113865111A (en) * | 2021-10-27 | 2021-12-31 | 华帝股份有限公司 | Control method for pressurization function of gas water heater |
| TWI775609B (en) * | 2021-09-17 | 2022-08-21 | 台灣櫻花股份有限公司 | Preheating hot water device and method for controlling the same |
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Application publication date: 20200124 |