CN111174274A - Control method of zero-cold-water wall-mounted boiler - Google Patents
Control method of zero-cold-water wall-mounted boiler Download PDFInfo
- Publication number
- CN111174274A CN111174274A CN201911372511.5A CN201911372511A CN111174274A CN 111174274 A CN111174274 A CN 111174274A CN 201911372511 A CN201911372511 A CN 201911372511A CN 111174274 A CN111174274 A CN 111174274A
- Authority
- CN
- China
- Prior art keywords
- heating
- water
- temperature
- bathing
- continuously
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 272
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 190
- 238000003287 bathing Methods 0.000 claims description 87
- 239000008236 heating water Substances 0.000 description 21
- 239000000523 sample Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000002699 waste material Substances 0.000 description 9
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
-
- 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 control method of a zero-cold-water wall-mounted boiler, which comprises the following steps: s1: a hot standby state; s2: continuously judging whether to enter an instant heating mode; s3: starting a water pump and starting recording the instant heating cruise time t 1; s5: igniting and heating; s6: continuously judging whether heating is finished or not, if so, extinguishing the fire, closing the water pump and starting timing t 2; s7: judging whether the water pump closing time length t2 is greater than a second time threshold ts2, if so, entering a step S10, and if not, entering the next step; s8: judging whether a heating demand exists or not, if so, starting heating and entering the next step, and if not, returning to the step S7; s9: continuously judging whether to finish heating, and if so, entering the next step; s10: it is determined whether the instant cruise time t1 is greater than or equal to the first time threshold ts1, and if so, the instant mode is exited and the process returns to step S1, otherwise, the process returns to step S3. The wall-mounted boiler not only has a zero-cold-water function, but also can meet the heating requirement in an instant heating mode, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of wall-mounted furnaces, in particular to a control method of a zero-cold-water wall-mounted furnace.
Background
When a user uses hot water, the conventional common wall-mounted boiler needs to wait for a period of time to discharge the hot water, and cold water in a pipeline needs to be discharged from the back of boiled water to the front of the hot water discharge, so that water resource waste is caused.
Zero cold water hanging stove when the user uses hot water, has realized going out hot water promptly, need not to wait for and avoid the water waste, improves user experience, but current zero cold water hanging stove is when starting up the instant heating function, does not compromise the heating demand, has not satisfied the user demand of heating.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior art to a certain extent, and therefore the invention provides a control method of a zero-cold-water wall-mounted boiler, which not only can realize the instant hot water discharge and avoid the waste of water resources, but also can give consideration to the heating demand in an instant heating mode, better meets the heating demand of users and improves the user experience.
According to the control method of the zero-cold-water wall-mounted boiler, the control method is realized through the following technical scheme:
a control method of a zero-cold-water wall-mounted boiler comprises the following steps:
s1: a hot standby state;
s2: continuously judging whether to enter an instant heating mode, if so, entering the next step;
s3: starting a water pump and starting recording the instant heating cruise time t 1;
s5: igniting and heating;
s6: continuously judging whether heating is finished or not, if so, extinguishing the fire, closing the water pump and starting timing t2, and if not, continuously heating and continuously executing the step S6;
s7: judging whether the water pump closing time length t2 is greater than a second time threshold ts2, if so, entering a step S10, and if not, entering the next step;
s8: judging whether a heating demand exists or not, if so, starting heating and entering the next step, and if not, returning to the step S7;
s9: continuously judging whether to finish heating, if so, entering the next step, and if not, continuously heating and continuing to execute the step S9;
s10: it is determined whether the instant cruise time t1 is greater than or equal to the first time threshold ts1, and if so, the instant mode is exited and the process returns to step S1, otherwise, the process returns to step S3.
In some embodiments, the control method further includes step S4: continuously detecting and judging whether the first inlet water temperature T11 of the bathing water inlet pipe is less than the difference between the bathing preset temperature Ts and the set value, if so, maintaining the operation of the water pump and entering the step S5, otherwise, closing the water pump and returning to the step S1.
In some embodiments, in step S2, the continuously determining whether to enter the instant heating mode includes: judging whether a bathing or heating requirement exists, and if the bathing requirement exists, entering a bathing mode; if the heating requirement exists, entering a heating mode; if there is no need for bathing and heating, then enter instant heating mode.
In some embodiments, in step S3, the starting the water pump includes: judging whether the instant heating mode is started effectively, if so, starting a water pump and starting to record instant heating cruise time t 1; if not, the process returns to step S1.
In some embodiments, the determining whether the instant heating mode is enabled is performed by comparing a relation between an inflow rate of the bath water inlet pipe and a preset water flow rate, and determining whether the instant heating mode is enabled based on the comparison result.
In some embodiments, in step S5, the ignition heating includes the steps of:
s51: detecting and judging whether the first outlet water temperature T21 of the bathing outlet pipe is less than the bathing preset temperature Ts, if so, entering the next step, otherwise, turning off the water pump and returning to the step S1;
s52: judging whether the bath preset temperature Ts is greater than the maximum temperature threshold Tmax, if so, entering the next step, and if not, igniting and heating by using the bath preset temperature Ts;
s53: automatically adjusting the bath preset temperature Ts to a maximum temperature threshold Tmax, and igniting and heating according to the maximum temperature threshold Tmax.
In some embodiments, the continuously determining whether to end heating in step S6 includes: continuously detecting and judging the relation between the second inlet water temperature T12 of the bathing water inlet pipe and the (bathing preset temperature Ts-return difference temperature Td +2), if the second inlet water temperature T12 is more than or equal to the (bathing preset temperature Ts-return difference temperature Td +2), ending heating and extinguishing, turning off the water pump and starting timing T1; if the second inlet water temperature T12 < (bathing preset temperature Ts-return temperature Td +2), the heating is continued and the step S6 is continuously performed.
In some embodiments, the continuously determining whether to end heating in step S6 includes: continuously detecting and judging the relation between the second water outlet temperature T22 of the bathing water outlet pipe and the [ bathing preset temperature Ts +7+ (50-Ts)/5], if the second water outlet temperature T22 is more than or equal to the [ bathing preset temperature Ts +7+ (50-Ts)/5], ending heating and extinguishing, closing the water pump and starting timing T1; if the second outlet water temperature T22 < [ preset bathing temperature Ts +7+ (50-Ts)/5], the heating is continued and the step S6 is continuously executed.
In some embodiments, in step S8, the determining whether there is a heating demand determines whether there is a heating demand by comparing the magnitude relationship between the heating outlet temperature T ' of the outlet pipe and the (preset heating temperature Ts ' -return temperature Td ').
In some embodiments, in step S9, the continuous determination of whether to end heating is made by continuously determining whether the heating time period t3 reaches the third time threshold ts3, and if the heating time period t3 is equal to the third time threshold ts3, then proceeding to step S10; if the heating time period t3 < the third time threshold ts3, the heating is continued and the step S9 is continuously performed
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. according to the wall-mounted boiler, whether heating is needed or not is judged after bath water is fully preheated in the instant heating mode, and heating is carried out if the heating requirement exists, so that the wall-mounted boiler not only has a zero cold water function, hot water is discharged when a user boils, the water consumption experience of the user is improved, the water resource waste is avoided, the heating requirement can be met, the heating requirement of the user cannot be met during the instant heating mode is avoided, and the heating experience of the user is improved;
2. whether the closing time of the water pump is greater than the second time threshold value or not is judged firstly in the instant heating mode, and whether the heating requirement exists or not is judged again, so that the zero cold water effect is prevented from being influenced by heating for users in the instant heating mode.
Drawings
Fig. 1 is a flowchart of a control method of a zero-cold water wall-hanging stove according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a zero-cold water wall-hanging stove according to an embodiment of the invention;
fig. 3 is a flow chart of ignition heating in the embodiment of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
As shown in fig. 2, in the control method of the zero-cooling water wall-mounted furnace of the present embodiment, the wall-mounted furnace includes a wall-mounted furnace body 1, a water inlet pipeline 2, a water outlet pipeline 3, a bath water inlet pipe 4, a bath water outlet pipe 5, a heating water return pipe 6, and a heating water outlet pipe 7, and a burner 8, a main heat exchanger 91, and a plate heat exchanger 92 are disposed in the wall-mounted furnace body 1. The two ends of the water inlet pipeline 2 are respectively communicated with the water inlets of the plate heat exchanger 81 and the main heat exchanger 91, the two ends of the water outlet pipeline 3 are respectively communicated with the water outlets of the plate heat exchanger 92 and the main heat exchanger 91, the bathing water inlet pipe 4 and the bathing water outlet pipe 5 are respectively communicated with the plate heat exchanger 92, the heating water return pipe 6 is communicated with the water inlet pipeline 2, and the heating water outlet pipe 7 is communicated with the water outlet pipeline 3.
An alternating-current water pump 21 for driving the circulation of the heating water is arranged on the water inlet pipeline 2. The water outlet pipeline 3 is provided with a temperature controller 31 for monitoring whether the water temperature of the water outlet pipeline 3 is abnormal or not and a heating water outlet temperature probe 32 for detecting the water temperature of the water outlet pipeline 3. The water inlet pipe 4 is provided with a water pump 41 for driving the circulation of the bath water in the instant heating mode, a water inlet temperature probe 42 for detecting the water inlet temperature of the bath water inlet pipe 4 and a water flow sensor 43 for detecting the water inlet flow of the bath water inlet pipe 4. A bathing water outlet temperature probe 51 for detecting the water outlet temperature of the bathing water outlet pipe 5 is arranged on the bathing water outlet pipe 5. A pressure sensor 72 for detecting the water pressure of the heating water outlet pipe 7 is arranged on the heating water return pipe 6, a three-way valve 71 for controlling the on-off of the heating or bathing water is arranged at the junction of the heating water outlet pipe 7 and the water outlet pipeline 3, the water inlet of the three-way valve 71 is communicated with the water outlet pipeline 3, one water outlet is communicated with the heating water return pipe 6, and the other water outlet is communicated with the plate heat exchanger 92 through a connecting water pipe 10. The heating water return pipe 6 is provided with an expansion water tank 61 and a relief valve 62 for preventing frost cracking of components related to the wall-hanging stove. The alternating-current water pump 21, the temperature controller 31, the heating water outlet temperature probe 32, the water pump 41, the water inlet temperature probe 42, the water flow sensor 43, the bathing water outlet temperature probe 51, the three-way valve 71 and the pressure sensor 72 are respectively and electrically connected with a wall-hanging stove controller.
As shown in fig. 1, the method for controlling the zero-cold-water wall-hanging stove includes the steps of:
s1: a hot standby state;
s2: continuously judging whether to enter an instant heating mode, if so, entering the next step;
s3: starting the water pump 41 and starting to record the instant cruise time t 1;
specifically, the hanging stove controller is integrated with a first timing module. After the instant heating mode is determined, the wall-mounted boiler controller cuts off heating water outlet and conducts bathing water outlet through the three-way valve 71, at the moment, the bathing water inlet pipe 4, the water inlet pipeline 2, the water outlet pipeline 3, the connecting water pipe 10, the bathing water outlet pipe 5 and a bathing water return pipe (not shown in the figure) form a bathing water circulating system, meanwhile, the water pump 41 is controlled to be started to enable bathing water to be circularly preheated, and the first timing module starts to record instant heating cruise time t 1.
S5: igniting and heating;
specifically, the hanging stove controller control combustor 8 ignites the burning, and the bathing water of main heat exchanger 91 of flowing through is heated, flows out hot water from outlet pipe 3 and carries out the heat exchange with the bathing water of bathing inlet tube 4 and bathing outlet pipe 5 in plate heat exchanger 92 of flowing through to make the hanging stove have zero cold water function, can realize going out hot water promptly, promote user's water experience, can avoid the water waste simultaneously.
S6: continuously judging whether heating is finished or not, if so, extinguishing the fire, closing the water pump 41 and starting timing t2, and if not, continuously heating and continuously executing the step S6;
specifically, the wall-hanging stove controller is integrated with a second timing module. The wall-mounted boiler controller determines whether heating is finished or not by judging whether the water inlet temperature of the bath water inlet pipe 4 or the water outlet temperature of the bath water outlet pipe 5 reaches a preset value or not, if heating is finished, the air source is cut off to enable the burner 8 to be flamed out, the water pump 41 is turned off, timing t2 is started by the first timing module, and bath water of the bath water circulating system is preheated at the moment, so that the wall-mounted boiler can be used for discharging hot water when a user boils water, waiting and water resource waste are not needed, and water using experience of the user is improved; if the heating is not ended, the heating is maintained and the execution of step S6 is continued.
S7: judging whether the closing time period t2 of the water pump 41 is greater than a second time threshold ts2, if so, going to step S10, otherwise, going to the next step;
specifically, the second time threshold ts2 is 10min, the controller compares the closing time t2 of the water pump 41 with the second time threshold ts2, and if the closing time t2 of the water pump 41 is less than or equal to the second time threshold ts2, it indicates that the preheated bath water can meet the requirement of the wall-hanging boiler for discharging hot water, and at this time, the step S8 may be performed to determine whether a heating demand exists, so as to meet the heating demand in the instant heating mode; if the closing time t2 of the water pump 41 is greater than the second time threshold ts2, it indicates that the heat loss of the preheated bath water is large, and the temperature of the preheated bath water is low, so as to preferentially ensure the zero cold water effect of the wall-hanging stove, the step S10 needs to be directly entered to determine whether to end the instant heating mode, and if not, the step S3 is returned to preheat the bath water.
S8: judging whether a heating demand exists or not, if so, starting heating and entering the next step, and if not, returning to the step S7;
specifically, the determination of the presence or absence of the heating demand determines whether the heating demand is present or absent by comparing the magnitude relationship between the heating outlet temperature T ' of the outlet pipe and the (preset heating temperature Ts ' -return temperature Td '). The heating outlet temperature probe 32 continuously detects the heating outlet temperature T ' of the water pipe 3 and sends the temperature T ' to the wall-hanging stove controller, the wall-hanging stove controller compares the heating outlet temperature T ' with (preset heating temperature Ts ' -return difference temperature Td '), if the heating water outlet temperature T ' < (preset heating temperature Ts ' -return difference temperature Td '), the wall-hanging stove controller controls the three-way valve 71 to cut off the bathing water outlet and conduct the heating water outlet, at this time, the heating water return pipe 6, the water inlet pipeline 2, the water outlet pipeline 3, the heating water outlet pipe 7 and the heating water return pipe (not shown in the figure) form a heating water circulating system, and controls the alternating-current water pump 21 to start, so that heating water circulation supplies heat to the user and enters into step S9, guarantee so that the hanging stove is automatic to compromise the heating demand in the instant heating mode, satisfy user 'S heating demand better, promote user' S heating and experience. If the heating outlet water temperature T ' is equal to or greater than (the preset heating temperature Ts ' -the return difference temperature Td '), the operation returns to the step S7 to continuously determine whether the off time T2 of the water pump 41 is greater than or equal to the second time threshold Ts2, so as to ensure the zero cold water effect of the wall-hanging stove.
S9: continuously judging whether to finish heating, if so, entering the next step, and if not, continuously heating and continuing to execute the step S9;
s10: it is determined whether the instant cruise time t1 is greater than or equal to the first time threshold ts1, and if so, the instant mode is exited and the process returns to step S1, otherwise, the process returns to step S3.
Specifically, the wall-hanging stove controller determines whether to end the instant heating mode by comparing the relationship of the instant heating cruise time t1 with the first time threshold ts1, and if so, exits the instant heating mode and returns to step S1; if not, the process returns to the step S3 to continue to preheat the bath water in a circulating manner to ensure the zero cold water effect preferentially, and then whether the heating requirement is met or not is judged to meet the heating requirement in the instant heating mode.
It can be seen that, the control method of zero cold water hanging stove of this embodiment, it is through judging whether need heating after fully preheating the bathing water in the instant heating mode, if there is the heating demand then heat, thereby make the hanging stove not only have zero cold water function, go out hot water promptly when guaranteeing user's boiling water, promote user's water and experience, avoid the water waste, can also have the heating demand simultaneously concurrently, can't satisfy user's heating demand during avoiding the instant heating mode, promote user's heating experience. In addition, whether the closing time t2 of the water pump 41 is greater than the second time threshold ts2 or not is judged firstly, and whether the heating requirement exists or not is judged again, so that the zero-cold water effect of the wall-hanging stove is guaranteed preferentially, the heating requirement is considered again, and the zero-cold water effect is prevented from being influenced by heating to a user in the instant heating mode.
Further, the control method further includes step S4: continuously detecting and judging whether the first inlet water temperature T11 of the bathing water inlet pipe 4 is less than the difference between the bathing preset temperature Ts and the set value, if so, maintaining the water pump 41 to operate and entering the step S5, otherwise, closing the water pump 41 and returning to the step S1. Therefore, whether ignition heating is carried out or not is determined by judging the relation between the first water inlet temperature T11 of the water inlet pipeline 2 and the (bathing preset temperature Ts-set value), so that ignition heating when the water temperature of the bathing water circulating system is high can be avoided, and energy waste and frequent work of the wall-mounted furnace are avoided.
Specifically, the set value is the return difference temperature Td + 2. When the water pump 42 is started for a period of time, the water inlet temperature probe 42 continuously detects the first water inlet temperature T11 of the bathing water inlet pipe 4 and sends the first water inlet temperature T11 to the wall-hanging stove controller, the wall-hanging stove controller judges whether the first water inlet temperature T11 is less than [ bathing preset temperature Ts- (return difference temperature Td +2) ], if the first water inlet temperature T11 < [ bathing preset temperature Ts- (return difference temperature Td +2) ], the water temperature of the bathing water circulating system is low, the water pump 42 needs to be maintained to operate, and the bathing water needs to be ignited to be heated, so that the zero cold water effect of the wall-hanging stove is ensured; if the first water inlet temperature T11 is more than or equal to the preset bath temperature Ts- (return difference temperature Td +2) within a period of time when the water pump 42 is started, the water temperature of the bath water circulating system is high, the bath water does not need to be circularly preheated, and the water pump 41 is controlled and returns to the step S1, so that energy waste and the situation that a user is scalded due to overhigh bath water temperature are avoided, and the service life is prevented from being influenced due to frequent starting work of the wall-mounted boiler.
Further, in step S2, the continuously determining whether to enter the instant heating mode includes: the wall-mounted boiler controller judges whether a bathing requirement or a heating requirement exists, and if the bathing requirement exists, the wall-mounted boiler enters a bathing mode; if the heating requirement exists, the wall-hanging stove enters a heating mode; if no bathing and heating requirements exist, the wall-mounted boiler enters an instant heating mode to ensure the zero cold water effect of the wall-mounted boiler.
Further, in step S3, the starting water pump 41 includes: judging whether the instant heating mode is started effectively, if so, starting the water pump 41 and starting to record the instant heating cruise time t 1; if not, the process returns directly to step S1. In the embodiment, it is determined whether the instant heating mode is activated effectively by comparing the relation between the inlet water flow of the bath water inlet pipe 4 and the preset water flow and determining whether the instant heating mode is activated effectively based on the comparison result.
Preferably, the preset water flow is a minimum start-up water flow of the wall-hanging stove. The water flow sensor 43 detects the water inlet flow of the bathing water inlet pipe 4 and sends the water inlet flow to the wall-mounted furnace controller, the wall-mounted furnace controller judges whether the water inlet flow detected by the water flow sensor 43 is larger than or equal to the minimum starting water flow, if the water inlet flow is larger than or equal to the minimum starting water flow, the three-way valve 71 is controlled to cut off the heating water outlet and conduct the bathing water outlet, and the water pump 41 is controlled to start to enable the bathing water to circulate. If the inlet water flow is less than the minimum startup water flow, then the instant heating mode is not entered and the process returns directly to step S1. Therefore, the service performance of the wall-mounted furnace is improved by judging whether the instant heating mode is started effectively or not.
As shown in fig. 3, further, in step S5, the ignition heating includes the steps of:
s51: detecting and judging whether the first outlet water temperature T21 of the bathing water outlet pipe 5 is less than the bathing preset temperature Ts, if so, entering the next step, otherwise, turning off the water pump 41 and returning to the step S1;
specifically, the bathing water outlet temperature probe 51 detects a first water outlet temperature T21 of the bathing water outlet pipe 5, the wall-hanging stove controller judges whether the first water outlet temperature T21 is less than a bathing preset temperature Ts, if yes, the step S52 is carried out, at this time, the water outlet temperature of the bathing water circulation system is low, the zero cold water effect is poor, the hot water demand of a user cannot be met, and the wall-hanging stove needs to be controlled to ignite to heat and circulate the bathing water; if otherwise, it indicates that the ignition heating condition is not satisfied, the water pump 41 needs to be turned off and the process returns to step S1.
S52: judging whether the bath preset temperature Ts is greater than the maximum temperature threshold Tmax, if so, entering the next step, and if not, igniting and heating by using the bath preset temperature Ts;
s53: automatically adjusting the bath preset temperature Ts to a maximum temperature threshold Tmax, and igniting and heating according to the maximum temperature threshold Tmax. Preferably, the maximum temperature threshold Tmax of the present embodiment is 50 ℃.
Therefore, in the ignition heating work, whether the ignition condition is met is determined by judging whether the first water outlet temperature T21 is smaller than the preset bathing temperature Ts, and then whether the preset bathing temperature Ts is larger than the maximum temperature threshold Tmax is judged, so that the wall-mounted furnace is controlled to perform ignition heating at a temperature not higher than the maximum temperature threshold Tmax, the phenomenon that a user is scalded due to overhigh circulating preheating temperature of the bathing water is avoided, and the water use safety and the water use experience of the user are further improved.
In this embodiment, in step S6, the continuously determining whether to end heating includes: continuously detecting and judging the relation between the second inlet water temperature T12 of the bathing water inlet pipe 4 and the (bathing preset temperature Ts-return difference temperature Td +2), if the second inlet water temperature T12 is more than or equal to the (bathing preset temperature Ts-return difference temperature Td +2), ending heating and extinguishing, turning off the water pump and starting timing T1; if the second inlet water temperature T12 < (bathing preset temperature Ts-return temperature Td +2), the heating is continued and the step S6 is continuously performed.
In other embodiments, whether to end heating can also be determined by judging whether the outlet water temperature of the bathing water outlet pipe 5 reaches the temperature threshold value. Specifically, the bathing water outlet temperature probe 51 detects a second water outlet temperature T22 of the bathing water outlet pipe 5 and sends the second water outlet temperature T22 to the wall-hanging stove controller, the wall-hanging stove controller compares the second water outlet temperature T22 with the magnitude relation of [ bathing preset temperature Ts +7+ (50-Ts)/5], if the second water outlet temperature T22 is more than or equal to [ bathing preset temperature Ts +7+ (50-Ts)/5], the air source is cut off to enable the burner 8 to be flamed out, the water pump 41 is closed, and the timing T1 is started; if the second outlet water temperature T22 < [ preset bathing temperature Ts +7+ (50-Ts)/5], the heating is continued and the step S6 is continuously executed.
Further, in step S9, the continuous determination of whether to end heating is made by continuously determining whether the heating time period t3 reaches the third time threshold ts3, and if the heating time period t3 is equal to the third time threshold ts3, the process proceeds to step S10; if the heating time period t3 < the third time threshold ts3, the heating is continued and the execution of step S9 is continued. Preferably, the third time threshold ts3 of the present embodiment is 10 min. Therefore, the heating is carried out for 10min after the bath water is preheated every time in the instant heating mode, the heating requirement of a user is met, meanwhile, whether the instant heating mode exits or not is judged after the heating is finished, and if the instant heating mode does not exit, the preheating is continued, so that the zero cold water function and the heating function of the wall-mounted boiler in the instant heating mode are guaranteed.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A control method of a zero-cold-water wall-mounted boiler is characterized by comprising the following steps:
s1: a hot standby state;
s2: continuously judging whether to enter an instant heating mode, if so, entering the next step;
s3: starting a water pump and starting recording the instant heating cruise time t 1;
s5: igniting and heating;
s6: continuously judging whether heating is finished or not, if so, extinguishing the fire, closing the water pump and starting timing t2, and if not, continuously heating and continuously executing the step S6;
s7: judging whether the water pump closing time length t2 is greater than a second time threshold ts2, if so, entering a step S10, and if not, entering the next step;
s8: judging whether a heating demand exists or not, if so, starting heating and entering the next step, and if not, returning to the step S7;
s9: continuously judging whether to finish heating, if so, entering the next step, and if not, continuously heating and continuing to execute the step S9;
s10: it is determined whether the instant cruise time t1 is greater than or equal to the first time threshold ts1, and if so, the instant mode is exited and the process returns to step S1, otherwise, the process returns to step S3.
2. The control method of the zero-cold-water wall-hanging stove according to claim 1, further comprising the step S4: continuously detecting and judging whether the first inlet water temperature T11 of the bathing water inlet pipe is less than the difference between the bathing preset temperature Ts and the set value, if so, maintaining the operation of the water pump and entering the step S5, otherwise, closing the water pump and returning to the step S1.
3. The method as claimed in claim 1 or 2, wherein the step S2 of continuously determining whether to enter the instant heating mode includes: judging whether a bathing or heating requirement exists, and if the bathing requirement exists, entering a bathing mode; if the heating requirement exists, entering a heating mode; if there is no need for bathing and heating, then enter instant heating mode.
4. The method as claimed in claim 1 or 2, wherein the starting the water pump in step S3 includes: judging whether the instant heating mode is started effectively, if so, starting a water pump and starting to record instant heating cruise time t 1; if not, the process returns to step S1.
5. The method as claimed in claim 3, wherein the determining whether the instant mode is enabled is performed by comparing a water inlet flow of the bath inlet with a predetermined water flow and determining whether the instant mode is enabled based on the comparison result.
6. The method as claimed in claim 1 or 2, wherein in step S5, the ignition heating comprises the steps of:
s51: detecting and judging whether the first outlet water temperature T21 of the bathing outlet pipe is less than the bathing preset temperature Ts, if so, entering the next step, otherwise, turning off the water pump and returning to the step S1;
s52: judging whether the bath preset temperature Ts is greater than the maximum temperature threshold Tmax, if so, entering the next step, and if not, igniting and heating by using the bath preset temperature Ts;
s53: automatically adjusting the bath preset temperature Ts to a maximum temperature threshold Tmax, and igniting and heating according to the maximum temperature threshold Tmax.
7. The method as claimed in claim 1 or 2, wherein the continuously determining whether to end heating in step S6 includes: continuously detecting and judging the relation between the second inlet water temperature T12 of the bathing water inlet pipe and the (bathing preset temperature Ts-return difference temperature Td +2), if the second inlet water temperature T12 is more than or equal to the (bathing preset temperature Ts-return difference temperature Td +2), ending heating and extinguishing, turning off the water pump and starting timing T1; if the second inlet water temperature T12 < (bathing preset temperature Ts-return temperature Td +2), the heating is continued and the step S6 is continuously performed.
8. The method as claimed in claim 1 or 2, wherein the continuously determining whether to end heating in step S6 includes: continuously detecting and judging the relation between the second water outlet temperature T22 of the bathing water outlet pipe and the [ bathing preset temperature Ts +7+ (50-Ts)/5], if the second water outlet temperature T22 is more than or equal to the [ bathing preset temperature Ts +7+ (50-Ts)/5], ending heating and extinguishing, closing the water pump and starting timing T1; if the second outlet water temperature T22 < [ preset bathing temperature Ts +7+ (50-Ts)/5], the heating is continued and the step S6 is continuously executed.
9. The method as claimed in claim 1 or 2, wherein the determining of the heating demand in step S8 determines whether the heating demand exists by comparing the heating outlet temperature T ' of the outlet pipe with the (preset heating temperature Ts ' -return temperature Td ').
10. The method for controlling a zero-cold-water wall hanging stove according to claim 1 or 2, wherein in step S9, the continuous judgment of whether to end heating is performed by continuously judging whether the heating time period t3 reaches a third time threshold ts3, and if the heating time period t3 is equal to the third time threshold ts3, the method proceeds to step S10; if the heating time period t3 < the third time threshold ts3, the heating is continued and the execution of step S9 is continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372511.5A CN111174274B (en) | 2019-12-27 | 2019-12-27 | Control method of zero-cold-water wall-mounted boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372511.5A CN111174274B (en) | 2019-12-27 | 2019-12-27 | Control method of zero-cold-water wall-mounted boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111174274A true CN111174274A (en) | 2020-05-19 |
| CN111174274B CN111174274B (en) | 2021-05-18 |
Family
ID=70646482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911372511.5A Active CN111174274B (en) | 2019-12-27 | 2019-12-27 | Control method of zero-cold-water wall-mounted boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111174274B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594772A (en) * | 2020-11-17 | 2021-04-02 | 华帝股份有限公司 | Wall-mounted boiler zero-cold-water starting method |
| CN112651384A (en) * | 2021-01-15 | 2021-04-13 | 芜湖美的厨卫电器制造有限公司 | Method, device, storage medium and processor for zero-cold-water gas water heater |
| CN113654134A (en) * | 2021-07-30 | 2021-11-16 | 青岛海尔空调电子有限公司 | Control method of water chilling unit |
| CN113864862A (en) * | 2021-09-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Heating control method and device and wall-hanging furnace system |
| CN114688600A (en) * | 2020-12-29 | 2022-07-01 | 庆东纳碧安株式会社 | Boiler system and method of operation |
| CN115235120A (en) * | 2021-04-16 | 2022-10-25 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444983A (en) * | 2010-10-09 | 2012-05-09 | 上海岭北冷暖设备工程有限公司 | Device and method for hot water circulation based on instant water heater |
| JP2013224752A (en) * | 2012-04-19 | 2013-10-31 | Rinnai Corp | Storage type water heater |
| CN104697177A (en) * | 2015-02-09 | 2015-06-10 | 芜湖美的厨卫电器制造有限公司 | Water heater as well as control method and control system thereof |
| US9784472B2 (en) * | 2012-11-14 | 2017-10-10 | International Business Machines Corporation | Managing hot water delivery |
| CN108426365A (en) * | 2018-02-26 | 2018-08-21 | 万家乐热能科技有限公司 | A kind of gas-heating water heater with hot water reservation function |
| KR101944815B1 (en) * | 2017-07-28 | 2019-02-07 | (주)명보에너지 | Heating system using electrode boiler with maximized thermal efficiency |
| CN209027098U (en) * | 2018-08-27 | 2019-06-25 | 宁波方太厨具有限公司 | Zero cold water structure of one kind and dual-purpose stove |
| CN110186198A (en) * | 2019-05-22 | 2019-08-30 | 华帝股份有限公司 | Waterway system of dual-purpose gas water heater, gas water heater and control method of gas water heater |
-
2019
- 2019-12-27 CN CN201911372511.5A patent/CN111174274B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444983A (en) * | 2010-10-09 | 2012-05-09 | 上海岭北冷暖设备工程有限公司 | Device and method for hot water circulation based on instant water heater |
| JP2013224752A (en) * | 2012-04-19 | 2013-10-31 | Rinnai Corp | Storage type water heater |
| US9784472B2 (en) * | 2012-11-14 | 2017-10-10 | International Business Machines Corporation | Managing hot water delivery |
| CN104697177A (en) * | 2015-02-09 | 2015-06-10 | 芜湖美的厨卫电器制造有限公司 | Water heater as well as control method and control system thereof |
| KR101944815B1 (en) * | 2017-07-28 | 2019-02-07 | (주)명보에너지 | Heating system using electrode boiler with maximized thermal efficiency |
| CN108426365A (en) * | 2018-02-26 | 2018-08-21 | 万家乐热能科技有限公司 | A kind of gas-heating water heater with hot water reservation function |
| CN209027098U (en) * | 2018-08-27 | 2019-06-25 | 宁波方太厨具有限公司 | Zero cold water structure of one kind and dual-purpose stove |
| CN110186198A (en) * | 2019-05-22 | 2019-08-30 | 华帝股份有限公司 | Waterway system of dual-purpose gas water heater, gas water heater and control method of gas water heater |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594772A (en) * | 2020-11-17 | 2021-04-02 | 华帝股份有限公司 | Wall-mounted boiler zero-cold-water starting method |
| CN114688600A (en) * | 2020-12-29 | 2022-07-01 | 庆东纳碧安株式会社 | Boiler system and method of operation |
| CN114688600B (en) * | 2020-12-29 | 2023-10-20 | 庆东纳碧安株式会社 | Boiler system and method of operation |
| CN112651384A (en) * | 2021-01-15 | 2021-04-13 | 芜湖美的厨卫电器制造有限公司 | Method, device, storage medium and processor for zero-cold-water gas water heater |
| CN115235120A (en) * | 2021-04-16 | 2022-10-25 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and readable storage medium |
| CN113654134A (en) * | 2021-07-30 | 2021-11-16 | 青岛海尔空调电子有限公司 | Control method of water chilling unit |
| CN113864862A (en) * | 2021-09-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Heating control method and device and wall-hanging furnace system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111174274B (en) | 2021-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111174274B (en) | Control method of zero-cold-water wall-mounted boiler | |
| EP2492601B1 (en) | Method for controlling the temperature of hot water by operating a circulation pump | |
| CN105650855A (en) | Gas water heater with reservation function and control method thereof | |
| CN112361611B (en) | Gas water heater control method, device and system and gas water heater | |
| CN106091356B (en) | Gas water heater | |
| CN107062621B (en) | Central gas water heater capable of automatically adjusting circulation interval time | |
| CN111426052B (en) | Constant-temperature type gas water heater and control method thereof | |
| CN111795505B (en) | Preheating control method for gas water heater | |
| JP2018185120A (en) | Heating water heater and its control method | |
| CN110940094B (en) | Gas water heater control method and gas water heater | |
| JP2007292446A (en) | Control method for heat using device | |
| CN205619546U (en) | Gas heater of area reservation function | |
| JP4359339B2 (en) | Hot water system | |
| CN114484886A (en) | Zero-cold-water control method with preheating overtemperature protection and control device thereof | |
| CN110345645B (en) | Wall-mounted furnace water outlet control method and device and wall-mounted furnace equipment | |
| KR20170046100A (en) | Heating system | |
| JP7332504B2 (en) | bath water heater | |
| JP5113614B2 (en) | Combustion equipment | |
| JP3310065B2 (en) | Water heater | |
| JPH11173671A (en) | Water heater | |
| JP2005249340A (en) | Hot-water supply system | |
| CN114704954A (en) | Wall-mounted furnace control method with zero cold water reservation function | |
| JP3273000B2 (en) | Water heater | |
| CN117366879A (en) | Control method of gas water heater | |
| JP3880138B2 (en) | Bath pot with water heater and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |