CN108662747B - Gas water heater and control method thereof - Google Patents
Gas water heater and control method thereof Download PDFInfo
- Publication number
- CN108662747B CN108662747B CN201710204247.9A CN201710204247A CN108662747B CN 108662747 B CN108662747 B CN 108662747B CN 201710204247 A CN201710204247 A CN 201710204247A CN 108662747 B CN108662747 B CN 108662747B
- Authority
- CN
- China
- Prior art keywords
- gas
- water heater
- temperature
- preset
- controller
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 384
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 335
- 239000000779 smoke Substances 0.000 claims abstract description 110
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 239000002737 fuel gas Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005856 abnormality Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 12
- 239000003517 fume Substances 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 description 6
- 230000008439 repair process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
-
- 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention discloses a gas water heater and a control method thereof, wherein the gas water heater comprises: a heat exchange assembly; a burner assembly for heating the heat exchange assembly, the burner assembly comprising a burner; the gas inlet pipe is connected with a gas inlet of the burner; a smoke exhaust assembly for exhausting smoke in the combustion chamber, the smoke exhaust assembly comprising a fan; the fuel gas pressure sensor is connected with the fuel gas inlet pipe and is used for detecting the fuel gas pressure of the fuel gas inlet pipe; a gas pressure fault prompter; and the controller controls the gas water heater to stop and the gas pressure fault prompter to send out a gas pressure shortage prompt when the gas pressure of the gas inlet pipe is smaller than a preset gas pressure value. According to the gas water heater provided by the embodiment of the invention, if the gas water heater is stopped due to insufficient gas pressure or no gas occurrence, a user can directly check the failure reason of the stop without reporting and repairing.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a gas water heater and a control method thereof.
Background
The gas water heater in the related art often has fault codes with meanings such as insufficient gas, accidental flameout, incapability of normal combustion and the like when in use, and because the sensor for detecting the gas pressure is not arranged in the gas water heater, a user cannot find out the specific reasons of the faults, and can often directly dial a maintenance phone in a product guarantee book to report and repair. If the failure occurs due to insufficient fuel gas, after-sales resources are wasted, and the public praise of the users of the products is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the gas water heater which is simple in structure and good in user experience.
The invention also provides a control method of the gas water heater.
According to an embodiment of the first aspect of the invention, a gas water heater comprises: a heat exchange assembly; a burner assembly for heating the heat exchange assembly, the burner assembly comprising a combustion chamber and a burner disposed within the combustion chamber; the gas inlet pipe is connected with a gas inlet of the burner; a smoke evacuation assembly for evacuating smoke from within the combustion chamber, the smoke evacuation assembly comprising a fan for evacuating smoke and delivering air to the combustion chamber; the fuel gas pressure sensor is connected to the fuel gas inlet pipe and is used for detecting the fuel gas pressure of the fuel gas inlet pipe; a gas pressure fault prompter; the controller is communicated with the heat exchange assembly, the burner assembly, the fan, the gas pressure sensor and the gas pressure fault prompter, and when the gas pressure of the gas inlet pipe is smaller than a preset gas pressure value, the controller controls the gas water heater to stop and the gas pressure fault prompter sends out a gas pressure shortage prompt.
According to the gas water heater provided by the embodiment of the invention, the gas pressure of the gas inlet pipe can be measured by the gas pressure sensor, so that shutdown is controlled according to the gas pressure condition, and the normal operation of the gas water heater is ensured. And if the gas water heater is shut down due to insufficient gas pressure or no gas occurrence, a user can directly check the failure reason of the shut down, repair is not needed, and the user experience is good.
According to one embodiment of the invention, the heat exchange assembly comprises: a heat exchanger; the water inlet pipe is connected with the heat exchanger, and a water inlet flow detection device which is used for detecting the water inlet flow of the water inlet pipe and is communicated with the controller is arranged on the water inlet pipe; the water outlet pipe is connected with the heat exchanger, and the controller controls the fan to start when the gas pressure of the gas inlet pipe is greater than or equal to the preset gas pressure value and the water inlet flow of the water inlet pipe is greater than or equal to the preset water inlet flow value.
According to one embodiment of the present invention, the gas inlet pipe is provided with a gas control device for adjusting gas inlet flow and communicating with the controller, and the gas water heater further comprises: an ignition needle disposed on the burner and in communication with the controller; the air speed sensor is used for detecting the air speed of the fan and is communicated with the controller, and when the air speed of the fan is larger than or equal to a preset air speed value, the controller controls the ignition needle to ignite and the pneumatic control device opens the gas inlet pipe.
Further, the gas water heater further comprises: a flame feedback needle disposed within the combustion chamber and in communication with the controller for detecting whether the burner has a flame; the ignition fault prompter is communicated with the controller, the controller judges whether the burner burns normally according to the detection result of the flame feedback needle, if not, the controller controls the gas water heater to stop and the ignition fault prompter sends out the ignition needle fault prompter.
Optionally, the inlet water flow detection device is integrated with an inlet water temperature sensor for detecting the inlet water temperature of the heat exchanger and communicating with the controller.
Optionally, the method further comprises: the water outlet temperature abnormality prompter is communicated with the controller, a water outlet temperature sensor used for detecting the water outlet temperature of the heat exchanger and communicated with the controller is arranged on the water outlet pipe, and when the water outlet temperature is greater than the set water outlet temperature or the water outlet temperature is continuously smaller than the set water outlet temperature in a preset time, the controller controls the gas water heater to stop and the water outlet temperature abnormality prompter sends out water outlet temperature abnormality prompt.
According to one embodiment of the invention, the fume extraction assembly further comprises: a smoke exhaust hood having a smoke outlet; a smoke discharge pressure sensor for detecting a smoke discharge pressure of the smoke discharge port, the smoke discharge pressure sensor being in communication with the controller; the smoke exhaust fault prompter is communicated with the controller, when the smoke exhaust pressure of the smoke exhaust port is larger than or equal to a preset smoke exhaust pressure value and the difference value of the smoke exhaust pressure value and the preset smoke exhaust pressure value is within a preset range, the controller controls the fan to accelerate, and when the smoke exhaust pressure of the smoke exhaust port is larger than the preset smoke exhaust pressure value and the difference value of the smoke exhaust pressure value is outside the preset range, the controller controls the gas water heater to stop and the smoke exhaust fault prompter sends out smoke exhaust fault prompters.
According to one embodiment of the invention, the gas water heater further comprises: and the environment temperature sensor is used for detecting the use environment temperature of the gas water heater and is communicated with the controller.
Optionally, the controller stores a set water outlet temperature T, and when the usage environment temperature is greater than a first preset temperature T1, the controller controls the water outlet temperature of the gas water heater to be T; when the using environment temperature is smaller than or equal to the first preset temperature T1 and larger than the second preset temperature T2, the controller controls the water outlet temperature of the gas water heater to be T+0.5deg.C; when the using environment temperature is smaller than or equal to the second preset temperature T2 and larger than the third preset temperature T3, the controller controls the water outlet temperature of the gas water heater to be T+1 ℃; when the using environment temperature is smaller than or equal to the third preset temperature T3 and larger than or equal to the fourth preset temperature T4, the controller controls the water outlet temperature of the gas water heater to be T+1.5deg.C; when the using environment temperature is smaller than a fourth preset temperature T4, the controller controls the water outlet temperature of the gas water heater to be T+2 ℃.
Optionally, the first preset temperature T1 is 25 ℃, the second preset temperature T2 is 20 ℃, the third preset temperature T3 is 15 ℃, and the fourth preset temperature T4 is 10 ℃.
According to a second aspect of the invention, a control method of a gas water heater comprises the following steps: setting a water outlet temperature T; starting the gas water heater to control the gas water heater to automatically execute the following operations:
and detecting the gas pressure of a gas inlet pipe of the gas water heater and the water inflow rate of a water inlet pipe, controlling a fan to start when the gas pressure is detected to be larger than or equal to a preset gas pressure value and the water inflow rate is detected to be larger than or equal to a preset water inflow rate value, and controlling the gas water heater to stop and sending a gas pressure shortage prompt when the gas pressure is detected to be smaller than the preset gas pressure value. After the fan is started, detecting the wind speed of the fan, and controlling an ignition needle to ignite and controlling a pneumatic control device to open the gas inlet pipe when the detected wind speed of the fan is greater than or equal to a preset wind speed value; after the ignition needle ignites, detecting whether the burner has flame, controlling the gas water heater to stop and sending out an ignition needle fault prompt when no flame is detected, and completing the starting of the gas water heater when the flame is detected.
According to one embodiment of the invention, after the gas water heater is started, the control method further comprises the following steps: detecting the water outlet temperature of a water outlet pipe, and controlling the gas water heater to stop and send out an abnormal water outlet temperature prompt when the detected water outlet temperature is greater than the set water outlet temperature or the water outlet temperature is continuously smaller than the set water outlet temperature in a preset time; detecting the smoke exhaust pressure of a smoke exhaust port, controlling the fan to accelerate when the detected smoke exhaust pressure is larger than or equal to a preset smoke exhaust pressure value and the difference value of the detected smoke exhaust pressure and the preset smoke exhaust pressure value is within a preset range, and controlling the gas water heater to stop and send out a smoke exhaust fault prompt when the detected smoke exhaust pressure is larger than the preset smoke exhaust pressure value and the difference value of the detected smoke exhaust pressure is out of the preset range; detecting the service environment temperature of the water heater, and controlling the water outlet temperature of the gas water heater to be T when the service environment temperature is greater than a first preset temperature T1; when the using environment temperature is smaller than or equal to the first preset temperature T1 and larger than the second preset temperature T2, controlling the water outlet temperature of the gas water heater to be T+0.5deg.C; when the using environment temperature is smaller than or equal to the second preset temperature T2 and larger than the third preset temperature T3, controlling the water outlet temperature of the gas water heater to be T+1 ℃; when the using environment temperature is smaller than or equal to the third preset temperature T3 and larger than or equal to the fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+1.5deg.C; when the using environment temperature is smaller than a fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+2 ℃.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a gas water heater according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fuel gas pressure sensor of a fuel gas water heater according to an embodiment of the present invention;
FIG. 3 is a flow chart of a gas water heater at start-up according to one embodiment of the present invention;
FIG. 4 is a flow chart of a gas water heater according to one embodiment of the present invention after start-up.
Reference numerals:
gas water heater 100,
A heat exchanger 11, a water inlet pipe 12, a water outlet pipe 13,
A combustion chamber 21, a burner 22, an ignition needle 23,
A gas inlet pipe 30, a gas control device 31,
Fan 41, fume exhaust hood 42, fume exhaust port 421, controller 50,
The fuel pressure sensor 61, the shell 611, the inlet end 6111, the outlet end 6112, the flexible diaphragm 612, the movable piece 613, the micro switch 614, the elastic piece 615, the pressure controller 616, the sealing ring 617,
A water inflow flow rate detection device 62, a water outflow temperature sensor 63, a flame feedback needle 64, and an ambient temperature sensor 65.
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 only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", 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 being 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.
At present, a sensor for detecting the pressure of the fuel gas is not arranged in the fuel gas water heater, and the water heater uses codes such as E1 to indicate faults such as insufficient fuel gas, accidental flameout, incapability of normal combustion and the like. If the user has the problem that the machine cannot be used due to insufficient fuel gas in the actual use process, the reason cannot be directly ascertained by only one fault code similar to E1, so that in the actual use process, the user calls a maintenance phone in a product guarantee book to report and repair, and the maintenance of the non-machine problem due to insufficient fuel gas is a great waste of after-sale resources of a company and can cause bad user public praise.
Therefore, the invention also provides the gas water heater and the control method thereof, and the gas water heater has a simple structure and good user experience.
A gas water heater 100 according to an embodiment of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the gas water heater 100 according to the embodiment of the present invention includes a heat exchange assembly, a burner assembly, a gas inlet pipe 30, a smoke discharging assembly, a gas pressure sensor 61, a gas pressure failure indicator, and a controller 50. The controller 50 may be a single-chip controller.
The burner assembly is connected to the heat exchange assembly for heating the heat exchange assembly, the burner assembly comprising a combustion chamber 21 and a burner 22 provided in the combustion chamber 21, the burner 22 having a gas inlet. A gas inlet pipe 30 is connected to a gas inlet of the burner 22 to deliver gas to the burner 22. The smoke evacuation assembly comprises a fan 41 for evacuating smoke and delivering air to the combustion chamber 21, the fan 41 being mounted outside the combustion chamber 21 and being connected to an air inlet of the combustion chamber 21. The gas pressure sensor 61 is connected to the gas intake pipe 30 for detecting the gas pressure of the gas intake pipe 30.
The controller 50 communicates with the heat exchange assembly, the burner assembly, the blower 41, the gas pressure sensor 61, and a gas pressure fault indicator (not shown). When the gas pressure of the gas introduced into the gas inlet pipe 30 is smaller than the preset gas pressure value, the controller 50 controls the gas water heater 100 to stop and the gas pressure fault prompter sends out a gas pressure shortage prompt, so that a user can find out the fault reason and solve the problem conveniently.
Here, the predetermined gas pressure value may be specifically set according to national standard requirements of gas pressure. When the gas pressure sensor 61 detects that the gas pressure fed in the gas inlet pipe 30 is smaller than the national standard requirement of the gas pressure, the controller 50 controls the gas water heater 100 to stop delivering the gas, so that the shutdown operation is realized, and the gas water heater 100 is ensured to work in the gas pressure environment of the national standard requirement. The prompt sent by the gas pressure fault prompter can be a display signal and a sound signal.
According to the gas water heater 100 of the embodiment of the invention, the gas pressure of the gas inlet pipe 30 can be measured by adopting the gas pressure sensor 61, so that shutdown is controlled according to the gas pressure condition, and normal operation of the gas water heater 100 is ensured. And if the gas water heater 100 is shut down due to insufficient gas pressure or no gas occurrence, the user can directly check the failure reason of the shut down without reporting repair, and the user experience is good.
Alternatively, as shown in fig. 2, the fuel pressure sensor 61 includes a housing 611, a flexible diaphragm 612, a movable member 613, a micro switch 614, a pressure controller 616, and an elastic member 615. The gas pressure sensor 61 is hermetically connected to the gas intake pipe 30. The housing 611 defines a passageway therein and has an inlet end 6111 and an outlet end 6112 in communication with the passageway, and the inlet end 6111 is sleeved with a seal 617. A flexible diaphragm 612 is sealingly connected within the channel to separate the inlet end 6111 from the outlet end 6112. The movable member 613 is disposed on a side of the flexible diaphragm 612 facing away from the inlet end 6111 and is displaced according to deformation of the flexible diaphragm 612. A microswitch 614 is provided at the outlet end 6112 and is spaced from the flexible diaphragm 612 to signal the gas pressure when the movable member 613 actuates the microswitch 614. An elastic member 615 is provided between the flexible diaphragm 612 and the micro switch 614 to separate the movable member from the micro switch 614 when the gas pressure of the inlet end 6111 is less than the elastic force of the elastic member 615. The pressure controller 616 is connected to the micro switch 614 and is adapted to detect whether a gas pressure signal is received, and when a gas pressure signal is received, communicate with the controller 50 to control the gas water heater 100 to stop and the gas pressure fault indicator to issue a gas pressure deficiency indication.
Specifically, the elastic member 615 with different types, sizes and performances can be selected according to actual needs, for example, the elastic member 615 can be selected according to national standard requirements of gas pressure, so that when the gas pressure of the inlet end 6111 of the gas pressure sensor 61 meets the national standard requirements, the gas pressure of the inlet end 6111 can overcome the elastic force of the elastic member 615, thereby the flexible diaphragm 612 drives the movable member 613 to move towards the direction close to the micro switch 614 to trigger the micro switch, and the pressure controller 616 receives a pressure signal sent by the micro switch 614 and controls the gas water heater 100 to start normally, so that the gas water heater 100 can work in a normal gas pressure environment.
When the gas pressure of the inlet end 6111 of the gas pressure sensor 61 is smaller than the national standard requirement, the elastic piece 615 pushes the flexible diaphragm 612 to move to the side close to the inlet end 6111, the flexible diaphragm 612 drives the movable piece 613 to be separated from the micro switch 614, the pressure controller 616 does not detect a gas pressure signal, the controller controls the gas water heater 100 to stop, and the gas pressure fault prompter sends out a gas pressure shortage prompt.
According to one embodiment of the present invention, as shown in fig. 1, a heat exchange assembly includes: a heat exchanger 11, a water inlet pipe 12 and a water outlet pipe 13. The heat exchanger 11 may transfer heat generated when the burner 22 burns to water. The water inlet pipe 12 is connected with the heat exchanger 11 and is used for conveying domestic water, and a water inlet flow detection device 62 for detecting the water inlet flow of the water inlet pipe 12 and communicating with the controller 50 is arranged on the water inlet pipe 12. The water outlet pipe 13 is connected to the heat exchanger 11 to guide out the heated domestic water.
When the pressure of the gas introduced from the gas inlet pipe 30 detected by the gas pressure sensor 61 is greater than or equal to a predetermined gas pressure value while the inflow amount of the water introduced into the water inlet pipe 12 detected by the inflow amount detection device 62 is greater than or equal to a predetermined inflow amount value, the controller 50 controls the fan 41 to be started to blow air into the combustion chamber 21. By providing the gas pressure sensor 61 and the inflow water flow rate detection device 62, the operation of the fan 41 can be controlled according to the detected gas pressure and inflow water flow rate value, and the control is convenient.
Optionally, the inlet water flow rate detection means 62 is integrated with an inlet water temperature sensor for detecting the inlet water temperature of the heat exchanger 11 and communicating with the controller 50.
In some specific examples, the gas water heater 100 further includes an outlet water temperature anomaly indicator (not shown). The water outlet temperature abnormality prompter is in communication with the controller 50, the water outlet pipe 13 is provided with a water outlet temperature sensor 63 for detecting the water outlet temperature of the heat exchanger 11 and the controller 50 communicates with the controller, when the water outlet temperature detected by the water outlet temperature sensor 63 is greater than the set water outlet temperature, or the detected water outlet temperature is continuously less than the set water outlet temperature within a predetermined time, the controller 50 controls the gas water heater 100 to stop, i.e. stops delivering gas to the burner 22. Meanwhile, the controller 50 controls the water outlet temperature abnormality prompter to give out water outlet temperature abnormality prompts, so that a user can conveniently find out fault reasons and solve problems.
By arranging the water outlet temperature sensor 63 and the water outlet temperature abnormality prompter communicated with the controller 50 on the water outlet pipe 13, when the water outlet temperature of the gas water heater 100 is abnormal, the gas water heater 100 is controlled to stop and the water outlet temperature abnormality prompter is sent, so that a user is prevented from being scalded by high temperature, and the use reliability and the user safety of the gas water heater 100 are ensured.
According to a further embodiment of the invention, the gas inlet pipe 30 is provided with a pneumatic control device 31. The air control device 31 is used for adjusting the gas inlet flow and communicates with the controller 50. For example, the air control device 31 may be a related component such as a gas proportional valve.
Further, the gas water heater 100 further includes: ignition needle 23, wind speed sensor. An ignition needle 23 is provided on the burner 22 and communicates with the controller 50. The ignition needle 23 generates an electric spark when discharged to achieve ignition of the burner 22. The wind speed sensor is used to detect the wind speed of the wind turbine 41 and communicates with the controller 50. When the wind speed of the blower 41 detected by the wind speed sensor is greater than or equal to a predetermined wind speed value, the controller 50 controls the ignition needle 23 to ignite while controlling the air control device 31 to open the gas inlet pipe 30 to deliver the gas to the burner 22. By arranging the wind speed sensor communicated with the controller 50, the ignition needle 23 and the pneumatic control device 31 are controlled to work according to the wind speed of the fan 41, and the control is convenient.
Optionally, the gas water heater 100 further comprises: flame feedback needle 64, ignition failure indicator. A flame feedback pin 64 is provided within the combustion chamber 21 and in communication with the controller 50, the flame feedback pin 64 being operable to detect whether the burner 22 is in flame and to feed back a flame signal to the controller 50. The ignition fault prompter is in communication with the controller 50, the controller 50 judges whether the burner 22 burns normally according to the detection result of the flame feedback needle 64, if not, the controller 50 controls the gas water heater 100 to stop and the ignition fault prompter sends out the fault prompt of the ignition needle 23, the control is convenient, and the user can find out the fault reason and solve the problem conveniently.
As shown in fig. 1, according to an embodiment of the present invention, the smoke evacuation assembly further comprises: a smoke exhaust hood 42 and a smoke exhaust pressure sensor (not shown). The fume exhaust hood 42 is installed above the heat exchanger 11 and the top of the fume exhaust hood 42 has a fume exhaust port 421. The smoke discharge pressure sensor communicates with the controller 50 and is used to detect the smoke discharge pressure of the smoke outlet 421. The smoke evacuation fault indicator communicates with the controller 50.
When the smoke pressure of the smoke outlet 421 detected by the smoke pressure sensor is greater than or equal to a predetermined smoke pressure value while the difference between the detected smoke pressure value and the predetermined smoke pressure value is within a predetermined range, the controller 50 controls the fan 41 to accelerate.
When the smoke discharge pressure of the smoke discharge port 421 detected by the smoke discharge pressure sensor is greater than the predetermined smoke discharge pressure value, and the difference between the detected smoke discharge pressure value and the predetermined smoke discharge pressure value is outside the predetermined range, the controller 50 controls the gas water heater 100 to stop, i.e. to stop delivering the gas to the burner 22, and the smoke discharge fault prompter sends out a smoke discharge fault prompt, so that the user can find the cause of the fault and solve the problem conveniently.
Here, the controller 50 controls the gas water heater 100 to stop, which means that the gas water heater 100 stops supplying gas first, then the gas water heater 100 stops supplying air, and the related sensor of the gas water heater 100 continues to detect the corresponding parameter.
According to another embodiment of the present invention, the gas water heater 100 further includes: an ambient temperature sensor 65, the ambient temperature sensor 65 being in communication with the controller 50 and being configured to detect an ambient temperature of use of the gas water heater 100.
The controller 50 is pre-stored with a first preset temperature T1, a second preset temperature T2, a third preset temperature T3, and a fourth preset temperature T4. The user will set the outlet water temperature T in advance when using the gas water heater 100, the controller 50 stores the set outlet water temperature T, and then compares the stored outlet water temperature T with the received service environment temperature of the gas water heater 100, and the gas water heater 100 compensates the outlet water temperature according to the service environment temperature.
When the usage environment temperature of the gas water heater 100 received by the controller 50 is greater than the first preset temperature T1, the controller 50 controls the outlet water temperature of the gas water heater 100 to be T, and at this time, the actual outlet water temperature is the same as the outlet water temperature set by the user and is T.
When the usage environment temperature of the gas water heater 100 received by the controller 50 is less than or equal to the first preset temperature T1 and greater than the second preset temperature T2, the controller 50 controls the water outlet temperature of the gas water heater 100 to be t+0.5 ℃.
When the usage environment temperature of the gas water heater 100 received by the controller 50 is less than or equal to the second preset temperature T2 and greater than the third preset temperature T3, the controller 50 controls the water outlet temperature of the gas water heater 100 to be t+1 ℃.
When the usage environment temperature of the gas water heater 100 received by the controller 50 is less than or equal to the third preset temperature T3 and greater than or equal to the fourth preset temperature T4, the controller 50 controls the water outlet temperature of the gas water heater 100 to be t+1.5 ℃.
When the usage environment temperature of the gas water heater 100 received by the controller 50 is less than the fourth preset temperature T4, the controller 50 controls the water outlet temperature of the gas water heater 100 to be t+2 ℃.
Optionally, the first preset temperature T1 is 25 ℃, the second preset temperature T2 is 20 ℃, the third preset temperature T3 is 15 ℃, and the fourth preset temperature T4 is 10 ℃.
For example, the user presets the outlet water temperature to 40 ℃ when using the gas water heater 100. When the service environment temperature is 25 ℃, the controller 50 controls the outlet water temperature of the gas water heater 100 to be 40 ℃. When the usage environment temperature is 23 ℃, the controller 50 controls the outlet water temperature of the gas water heater 100 to be 40.5 ℃ (40 ℃ +0.5 ℃). When the usage environment temperature is 18 ℃, the controller 50 controls the outlet water temperature of the gas water heater 100 to be 41 ℃ (40 ℃ +1 ℃). When the usage environment temperature is 13 ℃, the controller 50 controls the outlet water temperature of the gas water heater 100 to be 41.5 ℃ (40 ℃ +1.5 ℃). When the usage environment temperature is 8 ℃, the controller 50 controls the outlet water temperature of the gas water heater 100 to be 42 ℃ (40 ℃ +2 ℃).
The control method of the gas water heater 100 is described below with reference to fig. 1-4.
As shown in fig. 1 and 2, the gas water heater 100 includes: the heat exchanger 11, the water inlet pipe 12, the water outlet pipe 13, the burner 22, the ignition needle 23, the gas inlet pipe 30, the air control device 31, the fan 41, the fume exhaust hood 42, the controller 50, the gas pressure sensor 61, the water inlet flow detection device 62 integrated with a water inlet temperature sensor, a water outlet temperature sensor, a wind speed sensor, a flame feedback needle 64 and an environment temperature sensor 65.
As shown in fig. 3, the control method of the gas water heater includes: setting a water outlet temperature T; and starting the gas water heater to control the gas water heater to automatically execute the following operation.
And detecting the gas pressure of a gas inlet pipe of the gas water heater and the water inflow rate of a water inlet pipe, controlling a fan to start when the gas pressure is detected to be larger than or equal to a preset gas pressure value and the water inflow rate is detected to be larger than or equal to a preset water inflow rate value, and controlling the gas water heater to stop and sending a gas pressure shortage prompt when the gas pressure is detected to be smaller than the preset gas pressure value.
After the fan is started, detecting the wind speed of the fan, and controlling an ignition needle to ignite and controlling a pneumatic control device to open the gas inlet pipe when the detected wind speed of the fan is greater than or equal to a preset wind speed value;
after the ignition needle ignites, detecting whether the burner has flame, controlling the gas water heater to stop and sending out an ignition needle fault prompt when no flame is detected, and completing the starting of the gas water heater when the flame is detected.
As shown in fig. 4, after the gas water heater is started, detecting the water outlet temperature of the water outlet pipe, and controlling the gas water heater to stop and send out abnormal water outlet temperature prompts when the detected water outlet temperature is greater than the set water outlet temperature or when the water outlet temperature is continuously smaller than the set water outlet temperature within a preset time.
And detecting the smoke exhaust pressure of the smoke exhaust port, and controlling the fan to accelerate when the detected smoke exhaust pressure is larger than or equal to a preset smoke exhaust pressure value and the difference value of the detected smoke exhaust pressure and the preset smoke exhaust pressure value is within a preset range. And when the detected smoke discharging pressure is larger than a preset smoke discharging pressure value and the difference value of the detected smoke discharging pressure and the detected smoke discharging pressure is out of a preset range, controlling the gas water heater to stop and sending out a smoke discharging fault prompt.
Detecting the service environment temperature of the water heater, and controlling the water outlet temperature of the gas water heater to be T when the service environment temperature is greater than a first preset temperature T1; when the using environment temperature is smaller than or equal to the first preset temperature T1 and larger than the second preset temperature T2, controlling the water outlet temperature of the gas water heater to be T+0.5deg.C; when the using environment temperature is smaller than or equal to the second preset temperature T2 and larger than the third preset temperature T3, controlling the water outlet temperature of the gas water heater to be T+1 ℃; when the using environment temperature is smaller than or equal to the third preset temperature T3 and larger than or equal to the fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+1.5deg.C; when the using environment temperature is smaller than a fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+2 ℃.
Specifically, the user opens the hot water valve of the gas water heater 100, and the gas water heater 100 is turned on. The controller 50 detects whether the gas pressure fed back by the gas pressure sensor 61 is less than a predetermined gas pressure value, thereby determining whether there is gas or whether the gas pressure is insufficient. Meanwhile, the controller 50 detects whether the water flow amount of the water inflow amount detecting means 62 reaches a predetermined water inflow amount value. When the gas pressure and the water inflow rate both meet the requirements of the start setting, the controller 50 controls the fan 41 to operate, and the wind speed sensor starts to detect the wind speed of the fan 41. When the wind speed fed back by the fan 41 sensor reaches the set wind speed value, the controller 50 controls the ignition needle 23 to ignite, and simultaneously controls the air control device 31 to open so as to feed fuel gas into the combustor 22. At this time, the gas is burned on the burner 22, and the flame feedback needle 64 starts to detect whether the burner 22 has a flame and feeds back the detection result to the controller 50 to determine whether the combustion is normal.
After normal combustion, the water inlet flow detection device 62 integrated with the water inlet temperature sensor feeds back the detected water inlet temperature and water inlet flow to the controller 50, and the water outlet temperature sensor 63 feeds back the detected actual water outlet temperature to the controller 50, and then the air control device 31 is controlled to adjust the flame according to the related constant temperature program of the controller 50, so that the water outlet temperature finally reaches the set water outlet temperature. At this time, the fan 41, the flame feedback needle 64, the gas pressure sensor 61, the inlet water flow detection device 62 integrated with the inlet water temperature sensor, and the outlet water temperature sensor 63 are provided with detection parameters at any time and are fed back to the controller 50, so that the water heater is ensured to be in a normal working environment at any time and meet the temperature set by a user at any time.
The ambient temperature sensor 65 is used for detecting the use ambient temperature of the gas water heater 100 and feeding back the detected ambient temperature to the controller 50, thereby enabling the gas water heater 100 to automatically adapt to the ambient detection ambient temperature. When the ambient temperature sensor 65 detects that the ambient temperature is greater than 25 ℃, the default outlet water temperature of the gas water heater 100 is the set outlet water temperature, and the temperature-dependent compensation is not performed; when the ambient temperature is 20-25 ℃, the default outlet water temperature of the gas water heater 100 is set to be the outlet water temperature plus 0.5 ℃; when the environment temperature is 15-20 ℃, the default outlet water temperature of the gas water heater 100 is set to be the outlet water temperature of +1 ℃; when the environment temperature is 10-15 ℃, the default outlet water temperature of the gas water heater 100 is set to be the outlet water temperature plus 1.5 ℃; when the ambient temperature is lower than 10 ℃, the default outlet water temperature of the gas water heater 100 is set to be +2℃.
When the weather is colder in spring and autumn or winter, the heat loss of the hot water pipeline is increased, so that the water outlet temperature of the water use end is lower than the actual set value, and the bathing experience is affected. By arranging the environmental temperature sensor 65, the gas water heater 100 can automatically adjust to perform temperature compensation, and a more intelligent temperature-following function is realized.
If the gas pressure sensor 61 detects that the gas pressure is lower than the predetermined gas pressure value, the controller 50 controls the gas water heater 100 to stop, thereby avoiding abnormal operation of the machine due to lower gas pressure or no gas state, and simultaneously, the gas pressure fault prompter sends a gas pressure shortage prompt. Thereby reminding the user that the gas water heater 100 failure is caused by low gas or no gas at the moment, and facilitating the user to find and solve the failure by himself.
If the smoke pressure sensor detects that the smoke pressure of the smoke outlet 421 increases or the smoke outlet 421 is blocked, the controller 50 controls the fan 41 to increase the speed, thereby supplying more air to the burner 22 and keeping the burner 22 in a normal combustion state. If the exhaust pressure fed back by the exhaust pressure sensor is too large, it indicates that the exhaust port 421 is too large, and the fan 41 is not capable of supplying air required for combustion after the rotation speed reaches the maximum, the controller 50 controls the gas water heater 100 to stop, so as to ensure the use safety of the user and also ensure the safety of the gas water heater 100. At the same time, the controller 50 controls the smoke exhaust fault prompter to give out smoke exhaust fault prompts, prompting the user that the smoke exhaust pipeline is blocked.
If the flame feedback needle 64 detects that the burner 22 is not flame in the working process, the controller 50 controls the gas water heater 100 to stop, and meanwhile, the controller 50 controls the ignition fault prompter to send out the fault prompt of the ignition needle 23.
If the outlet water temperature detected by the outlet water temperature sensor 63 is higher than the set outlet water temperature, or the outlet water temperature does not rise within a long period of time, the outlet water temperature is abnormal, so that the controller 50 controls the gas water heater 100 to stop, and simultaneously, the controller 50 controls the outlet water temperature abnormality prompter to send out the outlet water temperature abnormality prompt, so that scalding of a user is avoided, and water use safety of the user is ensured.
According to the gas water heater 100 provided by the embodiment of the invention, through omnibearing detection of gas, water temperature, water inflow, flame, flue, use environment and the like, the gas water heater 100 has better adaptability and safety, and if a fault occurs, a machine can be timely adjusted, and a fault prompt can be sent out pertinently when a problem occurs after the adjustment, so that a user can conveniently find out the cause of the fault and solve the problem.
Because the gas water heater 100 can directly feed back the failure caused by shutdown due to insufficient gas and no gas by adopting a targeted failure code, the gas water heater is convenient for a user to check, solves related problems by himself, reduces after-sales resource waste of the gas water heater 100, and improves user experience.
Other constructions and operations of the gas water heater 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The control method of the gas water heater is characterized by comprising the gas water heater, wherein the gas water heater comprises the following components:
a heat exchange assembly;
a burner assembly for heating the heat exchange assembly, the burner assembly comprising a combustion chamber and a burner disposed within the combustion chamber;
the gas inlet pipe is connected with a gas inlet of the burner;
a smoke evacuation assembly for evacuating smoke from within the combustion chamber, the smoke evacuation assembly comprising a fan for evacuating smoke and delivering air to the combustion chamber;
the fuel gas pressure sensor is connected to the fuel gas inlet pipe and is used for detecting the fuel gas pressure of the fuel gas inlet pipe;
a gas pressure fault prompter;
the controller is communicated with the heat exchange assembly, the burner assembly, the fan, the gas pressure sensor and the gas pressure fault prompter, and when the gas pressure of the gas inlet pipe is smaller than a preset gas pressure value, the controller controls the gas water heater to stop and the gas pressure fault prompter sends out a gas pressure shortage prompt;
the heat exchange assembly includes:
a heat exchanger;
the water inlet pipe is connected with the heat exchanger, and a water inlet flow detection device which is used for detecting the water inlet flow of the water inlet pipe and is communicated with the controller is arranged on the water inlet pipe;
a water outlet pipe connected with the heat exchanger,
when the gas pressure of the gas inlet pipe is larger than or equal to the preset gas pressure value and the water inflow rate of the water inlet pipe is larger than or equal to the preset water inflow rate value, the controller controls the fan to start;
the gas inlet pipe is provided with a gas control device for adjusting gas inlet flow and communicating with the controller, and the gas water heater further comprises:
an ignition needle disposed on the burner and in communication with the controller;
a wind speed sensor for detecting the wind speed of the fan and communicating with the controller,
when the wind speed of the fan is larger than or equal to a preset wind speed value, the controller controls the ignition needle to ignite and the pneumatic control device opens the gas inlet pipe;
further comprises:
a flame feedback needle disposed within the combustion chamber and in communication with the controller for detecting whether the burner has a flame;
an ignition fault indicator in communication with the controller,
the controller judges whether the burner burns normally according to the detection result of the flame feedback needle, if not, the controller controls the gas water heater to stop and the ignition fault prompter sends out ignition needle fault prompt;
the control method of the gas water heater comprises the following steps:
setting a water outlet temperature T; starting the gas water heater to control the gas water heater to automatically execute the following operations:
detecting the gas pressure of a gas inlet pipe of the gas water heater and the water inflow of a water inlet pipe, controlling a fan to start when the gas pressure is detected to be larger than or equal to a preset gas pressure value and the water inflow is detected to be larger than or equal to a preset water inflow value, and controlling the gas water heater to stop and sending a gas pressure shortage prompt when the gas pressure is detected to be smaller than the preset gas pressure value;
after the fan is started, detecting the wind speed of the fan, and controlling an ignition needle to ignite and controlling a pneumatic control device to open the gas inlet pipe when the detected wind speed of the fan is greater than or equal to a preset wind speed value;
after the ignition needle ignites, detecting whether the burner has flame, controlling the gas water heater to stop and sending out an ignition needle fault prompt when no flame is detected, and completing the starting of the gas water heater when the flame is detected.
2. The control method of a gas water heater according to claim 1, wherein the inlet water flow rate detection device is integrated with an inlet water temperature sensor for detecting an inlet water temperature of the heat exchanger and communicating with the controller.
3. The control method of a gas water heater according to claim 1, further comprising:
the water outlet temperature abnormality prompter is communicated with the controller, a water outlet temperature sensor used for detecting the water outlet temperature of the heat exchanger and communicated with the controller is arranged on the water outlet pipe,
when the water outlet temperature is greater than the set water outlet temperature or the water outlet temperature is continuously smaller than the set water outlet temperature in a preset time, the controller controls the gas water heater to stop and the water outlet temperature abnormality prompter to send out water outlet temperature abnormality prompt.
4. The control method of a gas water heater according to claim 1, wherein the fume extraction assembly further comprises:
a smoke exhaust hood having a smoke outlet;
a smoke discharge pressure sensor for detecting a smoke discharge pressure of the smoke discharge port, the smoke discharge pressure sensor being in communication with the controller;
a smoke exhaust fault prompter which is communicated with the controller,
when the smoke exhaust pressure of the smoke exhaust port is larger than or equal to a preset smoke exhaust pressure value and the difference value of the smoke exhaust pressure value and the preset smoke exhaust pressure value is within a preset range, the controller controls the fan to accelerate,
when the smoke exhaust pressure of the smoke exhaust port is larger than a preset smoke exhaust pressure value and the difference value of the smoke exhaust pressure value and the preset smoke exhaust pressure value is out of a preset range, the controller controls the gas water heater to stop and the smoke exhaust fault prompter to send out smoke exhaust fault prompter.
5. The control method of a gas water heater according to claim 1, further comprising:
and the environment temperature sensor is used for detecting the use environment temperature of the gas water heater and is communicated with the controller.
6. The control method of a gas water heater according to claim 5, wherein the controller stores a set water outlet temperature T,
when the using environment temperature is greater than a first preset temperature T1, the controller controls the water outlet temperature of the gas water heater to be T;
when the using environment temperature is smaller than or equal to the first preset temperature T1 and larger than the second preset temperature T2, the controller controls the water outlet temperature of the gas water heater to be T+0.5deg.C;
when the using environment temperature is smaller than or equal to the second preset temperature T2 and larger than the third preset temperature T3, the controller controls the water outlet temperature of the gas water heater to be T+1 ℃;
when the using environment temperature is smaller than or equal to the third preset temperature T3 and larger than or equal to the fourth preset temperature T4, the controller controls the water outlet temperature of the gas water heater to be T+1.5deg.C;
when the using environment temperature is smaller than a fourth preset temperature T4, the controller controls the water outlet temperature of the gas water heater to be T+2 ℃.
7. The method according to claim 6, wherein the first preset temperature T1 is 25 ℃, the second preset temperature T2 is 20 ℃, the third preset temperature T3 is 15 ℃, and the fourth preset temperature T4 is 10 ℃.
8. The control method of a gas water heater according to any one of claims 1 to 7, wherein after the gas water heater is started, the control method further comprises:
detecting the water outlet temperature of a water outlet pipe, and controlling the gas water heater to stop and send out an abnormal water outlet temperature prompt when the detected water outlet temperature is greater than the set water outlet temperature or the water outlet temperature is continuously smaller than the set water outlet temperature in a preset time;
detecting the smoke exhaust pressure of a smoke exhaust port, controlling the fan to accelerate when the detected smoke exhaust pressure is larger than or equal to a preset smoke exhaust pressure value and the difference value of the detected smoke exhaust pressure and the preset smoke exhaust pressure value is within a preset range, and controlling the gas water heater to stop and send out a smoke exhaust fault prompt when the detected smoke exhaust pressure is larger than the preset smoke exhaust pressure value and the difference value of the detected smoke exhaust pressure is out of the preset range;
detecting the service environment temperature of the water heater, and controlling the water outlet temperature of the gas water heater to be T when the service environment temperature is greater than a first preset temperature T1; when the using environment temperature is smaller than or equal to the first preset temperature T1 and larger than the second preset temperature T2, controlling the water outlet temperature of the gas water heater to be T+0.5deg.C; when the using environment temperature is smaller than or equal to the second preset temperature T2 and larger than the third preset temperature T3, controlling the water outlet temperature of the gas water heater to be T+1 ℃; when the using environment temperature is smaller than or equal to the third preset temperature T3 and larger than or equal to the fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+1.5deg.C; when the using environment temperature is smaller than a fourth preset temperature T4, controlling the water outlet temperature of the gas water heater to be T+2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204247.9A CN108662747B (en) | 2017-03-30 | 2017-03-30 | Gas water heater and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204247.9A CN108662747B (en) | 2017-03-30 | 2017-03-30 | Gas water heater and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662747A CN108662747A (en) | 2018-10-16 |
| CN108662747B true CN108662747B (en) | 2023-10-24 |
Family
ID=63786425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710204247.9A Active CN108662747B (en) | 2017-03-30 | 2017-03-30 | Gas water heater and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662747B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612112A (en) * | 2018-10-23 | 2019-04-12 | 中山市恒乐电器有限公司 | A kind of intelligence liquefied gas heating-water and its service system |
| CN110285583A (en) * | 2019-06-18 | 2019-09-27 | 华帝股份有限公司 | Control method of constant-temperature water heater |
| CN112147902B (en) * | 2019-06-26 | 2023-10-10 | 上海擎感智能科技有限公司 | Indoor water consumption condition prompting method, system, storage medium and electronic equipment |
| CN113686012A (en) * | 2020-05-18 | 2021-11-23 | 广东水护盾健康科技有限公司 | Temperature control method of gas water heater and gas water heater system applying same |
| CN111981671B (en) * | 2020-08-10 | 2021-06-01 | 珠海格力电器股份有限公司 | Gas water heater, control method thereof and computer-readable storage medium |
| CN115111783A (en) * | 2021-03-19 | 2022-09-27 | 保音股份有限公司 | Power control method of water heater |
| CN113607452B (en) * | 2021-08-03 | 2024-04-12 | 华帝股份有限公司 | Method and device for detecting reverse connection of water inlet pipe and water outlet pipe |
| CN113882108A (en) * | 2021-11-22 | 2022-01-04 | 深圳安博信息科技有限公司 | Gas heating device for printing and dyeing dye vat |
| CN114322322B (en) * | 2021-12-29 | 2023-06-30 | 芜湖美的厨卫电器制造有限公司 | Gas water heater, control method and device thereof and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628358U (en) * | 2009-09-08 | 2010-11-10 | 广东万家乐燃气具有限公司 | Water heater with low pressure alarm function |
| CN102022832A (en) * | 2009-09-11 | 2011-04-20 | 海尔集团公司 | Water temperature control device and water temperature control method for gas water heater |
| CN202158666U (en) * | 2011-07-07 | 2012-03-07 | 海尔集团公司 | Internal pressure feedback regulation system of gas water heater |
| CN102748867A (en) * | 2012-07-11 | 2012-10-24 | 中山市超人电器有限公司 | Control method for fast gas water heater with mechanical adjustment of temperature and smoke exhausting by motor-driven fan |
| CN103940092A (en) * | 2014-05-08 | 2014-07-23 | 佛山市顺德区奇林电气有限公司 | Combustion heating control device and method used for gas water heater |
| CN206626798U (en) * | 2017-03-30 | 2017-11-10 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080878B (en) * | 2009-11-27 | 2013-05-08 | 海尔集团公司 | Draught fan control method and device of gas equipment |
| AU2013200950B2 (en) * | 2012-02-16 | 2014-05-29 | David M. Christensen | Control system for space heater/hearth |
| CN103591626A (en) * | 2013-10-14 | 2014-02-19 | 浙江亿田电器有限公司 | Integrated kitchen range with automatic accelerating and boosting functions |
-
2017
- 2017-03-30 CN CN201710204247.9A patent/CN108662747B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628358U (en) * | 2009-09-08 | 2010-11-10 | 广东万家乐燃气具有限公司 | Water heater with low pressure alarm function |
| CN102022832A (en) * | 2009-09-11 | 2011-04-20 | 海尔集团公司 | Water temperature control device and water temperature control method for gas water heater |
| CN202158666U (en) * | 2011-07-07 | 2012-03-07 | 海尔集团公司 | Internal pressure feedback regulation system of gas water heater |
| CN102748867A (en) * | 2012-07-11 | 2012-10-24 | 中山市超人电器有限公司 | Control method for fast gas water heater with mechanical adjustment of temperature and smoke exhausting by motor-driven fan |
| CN103940092A (en) * | 2014-05-08 | 2014-07-23 | 佛山市顺德区奇林电气有限公司 | Combustion heating control device and method used for gas water heater |
| CN206626798U (en) * | 2017-03-30 | 2017-11-10 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108662747A (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108662747B (en) | Gas water heater and control method thereof | |
| CN206626798U (en) | Gas heater | |
| US7335856B2 (en) | Apparatus and method of detecting igniter type | |
| CN113028652B (en) | Water heater control method based on wind pressure sensor and water heater | |
| CN110030739B (en) | Combustion control method of gas water heater | |
| CN110582673B (en) | Method for identifying a gas type during the start-up of a gas-operated heater and gas-operated heater | |
| EP3312523B1 (en) | Gas water heater and safety control system and method therefor | |
| CN110081605B (en) | Exhaust safety detection method of water heater | |
| CN110567160B (en) | Method for preventing wall-mounted boiler from deflagrating | |
| CN207379047U (en) | Gas heater | |
| CN112797620B (en) | Gas heating water heater and control method thereof | |
| CA2969059A1 (en) | Blower assembly with compensation for vent back pressure | |
| JP4191359B2 (en) | Boiler with continuous combustion | |
| CN111637623A (en) | Water heater and control method thereof | |
| CN110454986A (en) | Combustion control system | |
| JPH06317323A (en) | Control method of safety device for indoor setting type combustor | |
| CN110398071B (en) | Air pressure compensation control method and gas water heater | |
| CN216203514U (en) | Gas oven temperature control system and gas oven | |
| JP4049494B2 (en) | Combustion equipment | |
| KR102145065B1 (en) | Sensor system and method of boiler using internal and external outside temperature sensor | |
| CN220505882U (en) | Double-control gas valve and gas oven | |
| JP5017249B2 (en) | Incomplete combustion detector | |
| KR100290847B1 (en) | Device and method for preventing explosion of combustion chamber of gas heater | |
| CN110285583A (en) | Control method of constant-temperature water heater | |
| CN116428749A (en) | Gas constant flow working method of gas water heater and gas water heater |
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 |