CN111637631A - Control method and control system for gas water heater - Google Patents
Control method and control system for gas water heater Download PDFInfo
- Publication number
- CN111637631A CN111637631A CN202010447768.9A CN202010447768A CN111637631A CN 111637631 A CN111637631 A CN 111637631A CN 202010447768 A CN202010447768 A CN 202010447768A CN 111637631 A CN111637631 A CN 111637631A
- Authority
- CN
- China
- Prior art keywords
- ignition
- temperature
- water heater
- heating
- gas pressure
- 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
Images
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a control method and a control system of a gas water heater, wherein the control method comprises an ignition step and a heating step; the ignition step comprises the steps of carrying out primary ignition, if the ignition is successful, executing the heating step, and if the ignition is unsuccessful, adjusting the ignition gas pressure according to the environment humidity to carry out secondary ignition; the heating step comprises collecting water outlet temperature, collecting environment temperature if the water outlet temperature is lower than a preset temperature, adjusting heating gas pressure according to the environment temperature to heat, and maintaining the heating gas pressure to heat if the water outlet temperature reaches the preset temperature. According to the technical scheme, the ignition gas pressure is adjusted according to the environment humidity in the ignition step, so that the ignition success rate is improved, if the outlet water temperature is lower than the preset temperature in the heating step, the heating gas pressure is adjusted according to the environment temperature to heat, the heat efficiency of the gas water heater is improved, and the constant temperature function of the gas water heater can be realized.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to a control method and a control system of a gas water heater.
Background
At present, the gas water heater is the most widely used heat source product. The heat efficiency of the existing gas water heater in the working process is mainly influenced by gas pressure, air temperature and air humidity, and the reduction of the heat efficiency of the gas water heater represents the reduction of the water heating capacity of the gas water heater, so that the outlet water temperature of the gas water heater is difficult to reach the preset temperature. In addition, the ignition success rate of the gas water heater is mainly influenced by gas pressure and air humidity.
The gas water heater in the prior art can not control the gas supply quantity according to environmental parameters, so that the gas water heater can not be successfully ignited or can not realize a constant temperature function.
Disclosure of Invention
The present invention is directed to a method and a system for controlling a gas water heater, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the present invention.
The technical scheme adopted for solving the technical problems is as follows:
a control method of a gas water heater comprises an ignition step and a heating step;
the igniting step comprises: setting ignition gas pressure, starting an ignition process, carrying out first ignition, executing the heating step if the first ignition is successful, acquiring ambient humidity if the first ignition is unsuccessful, adjusting the ignition gas pressure according to the ambient humidity, carrying out re-ignition until the ignition is successful, and executing the heating step;
the heating step includes: the method comprises the steps of setting a preset temperature and heating gas pressure, collecting water outlet temperature, collecting environment temperature if the water outlet temperature is lower than the preset temperature, adjusting the heating gas pressure to heat according to the environment temperature, and maintaining the heating gas pressure to heat if the water outlet temperature reaches the preset temperature.
As a further improvement of the above technical solution, the igniting step further includes: setting a flow threshold value, collecting pipeline water flow, starting an ignition process if the pipeline water flow reaches the flow threshold value, or else, not carrying out any operation.
As a further improvement of the above technical solution, the adjusting of the ignition gas pressure according to the ambient humidity in the ignition step includes: and setting a humidity threshold value, if the environment humidity reaches the humidity threshold value, increasing the ignition gas pressure, and igniting again, otherwise, maintaining the ignition gas pressure and igniting again.
As a further improvement of the above technical solution, in the ignition step, the ambient humidity and the humidity threshold are represented by relative humidity, and the humidity threshold is set to any value between 80% relative humidity and 90% relative humidity.
As a further improvement of the above technical solution, the heating step further includes: and setting early-stage time, and controlling the gas water heater to maintain the heating gas pressure for heating in the early-stage time before acquiring the water outlet temperature.
As a further improvement of the above technical solution, in the heating step, adjusting the heating gas pressure according to the ambient temperature to perform heating includes: and setting a temperature threshold, if the ambient temperature reaches the temperature threshold, reducing the heating gas pressure, otherwise, increasing the heating gas pressure, and maintaining the adjusted heating gas pressure for heating.
The invention also discloses a gas water heater control system, which comprises a water heater body, wherein the water heater body is provided with:
the temperature and humidity sensor is used for detecting the environment humidity and the environment temperature;
a temperature sensor for detecting a temperature of water;
an actuator for regulating gas pressure;
and a controller;
the temperature and humidity sensor, the temperature sensor and the executive device are respectively connected with the controller;
after the gas water heater is started, the controller executes the gas water heater control method.
As a further improvement of the technical scheme, the water heater body is further provided with a flow sensor for collecting water flow of the pipeline, and the flow sensor is connected with the controller.
As a further improvement of the above technical solution, the water heater body is further provided with a first pressure sensor and a second pressure sensor for detecting gas pressure, the first pressure sensor and the second pressure sensor are respectively arranged on the front side and the rear side of the actuator, and the first pressure sensor and the second pressure sensor are respectively connected with the controller.
The invention has the beneficial effects that: according to the technical scheme, the ignition gas pressure is adjusted according to the environment humidity in the ignition step, so that the ignition success rate is improved, if the outlet water temperature is lower than the preset temperature in the heating step, the heating gas pressure is adjusted according to the environment temperature to heat, the heat efficiency of the gas water heater is improved, and the constant temperature function of the gas water heater can be realized.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic flow chart of a gas water heater control method of the present invention;
FIG. 2 is a schematic structural view of the water heater body of the present invention.
The reference numbers illustrate:
100. the water heater comprises a water heater body, 200, a temperature and humidity sensor, 300, an execution device, 400, a controller, 510, a first pressure sensor, 520 and a second pressure sensor.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the present application discloses a gas water heater control method, a first embodiment of which comprises an ignition step and a heating step;
the igniting step comprises: setting ignition gas pressure, starting an ignition process, carrying out first ignition, executing the heating step if the first ignition is successful, acquiring ambient humidity if the first ignition is unsuccessful, adjusting the ignition gas pressure according to the ambient humidity, carrying out re-ignition until the ignition is successful, and executing the heating step;
the heating step includes: the method comprises the steps of setting a preset temperature and heating gas pressure, collecting water outlet temperature, collecting environment temperature if the water outlet temperature is lower than the preset temperature, adjusting the heating gas pressure to heat according to the environment temperature, and maintaining the heating gas pressure to heat if the water outlet temperature reaches the preset temperature.
Specifically, thereby the ignition success rate is improved to the gas pressure of igniting according to ambient humidity regulation in this embodiment in the ignition step, if leaving water temperature is less than preset temperature in the heating step, then need heat gas pressure according to ambient temperature regulation heating and heat to improve gas heater's thermal efficiency, guarantee that gas heater can realize the constant temperature function. It should be noted that, in this embodiment, the ambient humidity may also be collected first, the ignition gas pressure is set according to the ambient humidity, and finally the ignition operation is performed. Considering that the gas water heater can still perform ignition operation in an environment with high ambient humidity, but the success rate is relatively low, there is other risks in increasing the ignition gas pressure in practical application, so this embodiment does not set the ignition gas pressure according to the ambient humidity at the beginning, but resets the ignition gas pressure according to the ambient humidity only when the ignition fails for the first time, and the safety is higher.
Further preferably, in this embodiment, the ignition start operation is performed under a condition that it is determined that the water consumption point connected to the gas water heater is turned on, and the water flow rate in the pipe connected to the gas water heater is changed. Therefore, the igniting step in this embodiment further includes: setting a flow threshold value, collecting pipeline water flow, starting an ignition process if the pipeline water flow reaches the flow threshold value, and igniting for the first time, otherwise, not needing any operation.
Further preferably, in this embodiment, the adjusting the ignition gas pressure according to the ambient humidity in the ignition step includes: and setting a humidity threshold value, if the environment humidity reaches the humidity threshold value, increasing the ignition gas pressure, and igniting again, otherwise, maintaining the ignition gas pressure and igniting again. Specifically, in this embodiment, the relative humidity is used to characterize the ambient humidity and the humidity threshold in the ignition step, and the humidity threshold is set to any value between 80% relative humidity and 90% relative humidity. Preferably, the humidity threshold is set to 85% relative humidity in this embodiment. In this embodiment, if gas heater ignites unsuccessfully for the first time, then need consider whether environment humidity leads to too high, through gathering environment humidity and right environment humidity and humidity threshold value compare, if environment humidity is greater than or equal to humidity threshold value proves to be present environment humidity is too high, and gas heater ignites unsuccessfully to a great extent because environment humidity leads to too high, needs to improve ignition gas pressure is in order to improve the success rate of igniting, if environment humidity is less than humidity threshold value proves to be present environment humidity is not high, and gas heater ignites unsuccessfully for the first time belongs to the incident, only needs to maintain this moment ignition gas pressure's initial value ignites once more can.
Further as a preferred embodiment, the heating step further comprises: and setting early-stage time, and controlling the gas water heater to maintain the heating gas pressure for heating in the early-stage time before acquiring the water outlet temperature.
In this embodiment, before adjusting the heating gas pressure, the gas water heater is first controlled to perform heating operation according to the preset heating gas pressure within a previous period of time, and then the water outlet temperature is detected and compared with the preset temperature, if the water outlet temperature reaches the preset temperature, the preset heating gas pressure is proved to be appropriate, and adjustment is not needed; if the water outlet temperature does not reach the preset temperature, further comparing the environment temperature with the preset temperature threshold value; if the ambient temperature is greater than or equal to the temperature threshold, the ambient temperature is proved to be higher, and as long as the heating time is sufficient, the effluent temperature can reach the preset temperature, the heating gas pressure needs to be reduced at the moment, so that the overhigh effluent temperature caused by overlong heating time is prevented; if the ambient temperature is less than the temperature threshold, the ambient temperature is lower, and although the heating time is enough, the outlet water temperature is difficult to reach the preset temperature, at the moment, the heating gas pressure needs to be increased, the heat efficiency of the gas water heater is improved, and the outlet water temperature reaches the preset temperature.
In this embodiment, the early time is set to 30 seconds, and the temperature threshold is set to 20 degrees celsius.
Referring to fig. 2, the present application also discloses a gas water heater control system, the first embodiment of which includes a water heater body 100, the water heater body 100 is provided with:
a temperature and humidity sensor 200 for detecting an ambient temperature and an ambient humidity;
a temperature sensor for detecting a temperature of water;
an actuator 300 for regulating gas pressure;
and a controller 400;
the temperature and humidity sensor 200, the temperature sensor and the actuator 300 are respectively connected to the controller 400;
the controller 400 performs the first embodiment of the gas water heater control method as described above after the gas water heater is started.
Further, in a preferred embodiment, in the present embodiment, the water heater body 100 is further provided with a flow sensor for collecting water flow of a pipeline, and the flow sensor is connected to the controller 400.
In a further preferred embodiment, in the present embodiment, the water heater body 100 is further provided with a first pressure sensor 510 and a second pressure sensor 520 for detecting gas pressure, the first pressure sensor 510 and the second pressure sensor 520 are respectively disposed on the front side and the rear side of the actuator 300, and the first pressure sensor 510 and the second pressure sensor 520 are respectively connected to the controller 400. In this embodiment, the first pressure sensor 510 and the second pressure sensor 520 disposed at the front end and the rear end of the actuator 300 are used to detect the gas pressure of the gas water heater.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (9)
1. A control method of a gas water heater is characterized by comprising the following steps: comprises an ignition step and a heating step;
the igniting step comprises: setting ignition gas pressure, starting an ignition process, carrying out first ignition, executing the heating step if the first ignition is successful, acquiring ambient humidity if the first ignition is unsuccessful, adjusting the ignition gas pressure according to the ambient humidity, carrying out re-ignition until the ignition is successful, and executing the heating step;
the heating step includes: the method comprises the steps of setting a preset temperature and heating gas pressure, collecting water outlet temperature, collecting environment temperature if the water outlet temperature is lower than the preset temperature, adjusting the heating gas pressure to heat according to the environment temperature, and maintaining the heating gas pressure to heat if the water outlet temperature reaches the preset temperature.
2. A gas water heater control method according to claim 1, characterized in that: the igniting step further comprises: setting a flow threshold value, collecting pipeline water flow, starting an ignition process if the pipeline water flow reaches the flow threshold value, or else, not carrying out any operation.
3. A gas water heater control method according to claim 1, characterized in that: adjusting the ignition gas pressure according to the ambient humidity in the igniting step includes: and setting a humidity threshold value, if the environment humidity reaches the humidity threshold value, increasing the ignition gas pressure, and igniting again, otherwise, maintaining the ignition gas pressure and igniting again.
4. A gas water heater control method according to claim 3, characterized in that: and in the ignition step, the environment humidity and the humidity threshold are represented by using relative humidity, and the humidity threshold is set to be any value between 80% relative humidity and 90% relative humidity.
5. A gas water heater control method according to claim 1, characterized in that: the heating step further comprises: and setting early-stage time, and controlling the gas water heater to maintain the heating gas pressure for heating in the early-stage time before acquiring the water outlet temperature.
6. The gas water heater control method according to claim 5, wherein: in the heating step, adjusting the heating gas pressure according to the ambient temperature for heating includes: and setting a temperature threshold, if the ambient temperature reaches the temperature threshold, reducing the heating gas pressure, otherwise, increasing the heating gas pressure, and maintaining the adjusted heating gas pressure for heating.
7. A gas heater control system which characterized in that: including water heater body (100), water heater body (100) is provided with:
a temperature and humidity sensor (200) for detecting ambient humidity and ambient temperature;
a temperature sensor for detecting a temperature of water;
an actuator (300) for regulating the gas pressure;
and a controller (400);
the temperature and humidity sensor (200), the temperature sensor and the execution device (300) are respectively connected with the controller (400);
the controller (400) performs the gas water heater control method of claim 1 upon starting the gas water heater.
8. A gas water heater control system as claimed in claim 7, wherein: the water heater body (100) is further provided with a flow sensor for collecting water flow of a pipeline, and the flow sensor is connected with the controller (400).
9. A gas water heater control system according to claim 7 or 8, wherein: the water heater body (100) is further provided with a first pressure sensor (510) and a second pressure sensor (520) which are used for detecting gas pressure, the first pressure sensor (510) and the second pressure sensor (520) are respectively arranged on the front side and the rear side of the execution device (300), and the first pressure sensor (510) and the second pressure sensor (520) are respectively connected with the controller (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447768.9A CN111637631B (en) | 2020-05-25 | 2020-05-25 | Control method and control system for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447768.9A CN111637631B (en) | 2020-05-25 | 2020-05-25 | Control method and control system for gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111637631A true CN111637631A (en) | 2020-09-08 |
| CN111637631B CN111637631B (en) | 2021-07-13 |
Family
ID=72327155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010447768.9A Active CN111637631B (en) | 2020-05-25 | 2020-05-25 | Control method and control system for gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111637631B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147054A (en) * | 1984-01-09 | 1985-08-02 | Matsushita Electric Ind Co Ltd | Instantaneous water heater |
| KR20050048101A (en) * | 2003-11-19 | 2005-05-24 | 주식회사 경동보일러 | Room controller for boiler with indoor air pollution alarm function |
| UA22563U (en) * | 2006-11-29 | 2007-04-25 | Ltd Liability Company Horizon | Method for control of operation of gas heating device |
| US20080078337A1 (en) * | 2005-02-07 | 2008-04-03 | Donnelly Donald E | Systems And Methods For Controlling A Water Heater |
| 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 |
| CN202075642U (en) * | 2011-02-25 | 2011-12-14 | 美的集团有限公司 | Gas water heater control circuit capable of adapting to ambient temperature |
| CN105605796A (en) * | 2016-03-30 | 2016-05-25 | 成都前锋电子有限责任公司 | Combustible-gas-self-adapting combustible gas water heater and control method thereof |
| CN106091390A (en) * | 2016-05-31 | 2016-11-09 | 深圳小厨科技有限公司 | Water heater control system and water heater control method |
| CN106766213A (en) * | 2016-11-01 | 2017-05-31 | 珠海格力电器股份有限公司 | Ignition control method and device for gas wall-mounted boiler and gas wall-mounted boiler |
| CN107062382A (en) * | 2017-04-20 | 2017-08-18 | 珠海格力电器股份有限公司 | Gas wall-mounted furnace and control method and system thereof |
| CN206626798U (en) * | 2017-03-30 | 2017-11-10 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109186080A (en) * | 2018-10-25 | 2019-01-11 | 广东万家乐燃气具有限公司 | A kind of noise reduction activation system and strong pumping type gas heater |
| CN208952395U (en) * | 2018-10-25 | 2019-06-07 | 广东万家乐燃气具有限公司 | A kind of noise reduction activation system and gas heater |
| CN110940093A (en) * | 2018-09-21 | 2020-03-31 | 芜湖美的厨卫电器制造有限公司 | Control method and device, water heater and readable storage medium |
| CN110966765A (en) * | 2018-09-30 | 2020-04-07 | 青岛经济技术开发区海尔热水器有限公司 | Control method of supercharged gas water heater and gas water heater |
-
2020
- 2020-05-25 CN CN202010447768.9A patent/CN111637631B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147054A (en) * | 1984-01-09 | 1985-08-02 | Matsushita Electric Ind Co Ltd | Instantaneous water heater |
| KR20050048101A (en) * | 2003-11-19 | 2005-05-24 | 주식회사 경동보일러 | Room controller for boiler with indoor air pollution alarm function |
| US20080078337A1 (en) * | 2005-02-07 | 2008-04-03 | Donnelly Donald E | Systems And Methods For Controlling A Water Heater |
| UA22563U (en) * | 2006-11-29 | 2007-04-25 | Ltd Liability Company Horizon | Method for control of operation of gas heating device |
| 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 |
| CN202075642U (en) * | 2011-02-25 | 2011-12-14 | 美的集团有限公司 | Gas water heater control circuit capable of adapting to ambient temperature |
| CN105605796A (en) * | 2016-03-30 | 2016-05-25 | 成都前锋电子有限责任公司 | Combustible-gas-self-adapting combustible gas water heater and control method thereof |
| CN106091390A (en) * | 2016-05-31 | 2016-11-09 | 深圳小厨科技有限公司 | Water heater control system and water heater control method |
| CN106766213A (en) * | 2016-11-01 | 2017-05-31 | 珠海格力电器股份有限公司 | Ignition control method and device for gas wall-mounted boiler and gas wall-mounted boiler |
| CN206626798U (en) * | 2017-03-30 | 2017-11-10 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN107062382A (en) * | 2017-04-20 | 2017-08-18 | 珠海格力电器股份有限公司 | Gas wall-mounted furnace and control method and system thereof |
| CN110940093A (en) * | 2018-09-21 | 2020-03-31 | 芜湖美的厨卫电器制造有限公司 | Control method and device, water heater and readable storage medium |
| CN110966765A (en) * | 2018-09-30 | 2020-04-07 | 青岛经济技术开发区海尔热水器有限公司 | Control method of supercharged gas water heater and gas water heater |
| CN109186080A (en) * | 2018-10-25 | 2019-01-11 | 广东万家乐燃气具有限公司 | A kind of noise reduction activation system and strong pumping type gas heater |
| CN208952395U (en) * | 2018-10-25 | 2019-06-07 | 广东万家乐燃气具有限公司 | A kind of noise reduction activation system and gas heater |
Non-Patent Citations (2)
| Title |
|---|
| 李志敏等: "环境因子对燃气热水器热效率的影响度分析", 《日用电器》 * |
| 陈志刚: "家用燃气热水器的自适应控制系统", 《科技与创新》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111637631B (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104296386B (en) | Control method and control system of gas water heater and gas water heater | |
| CN102563886B (en) | Adaptive gas water heater, system thereof and method for automatically judging gas types | |
| CN110398054B (en) | Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof | |
| US11719467B2 (en) | Method and system for controlling an intermittent pilot water heater system | |
| CN111023578B (en) | Water heater outlet water temperature control method and control system | |
| US4852797A (en) | Process for operating a fuel-operated heater and control arrangement for performing the process | |
| CN110986375B (en) | Method for identifying failure of temperature detection device and gas water heater | |
| CN110260524A (en) | Fully-premixed gas water heater and control method thereof | |
| CN111637631B (en) | Control method and control system for gas water heater | |
| CN105674573B (en) | The automatic temperature-controlled method and gas-heating water heater of gas-heating water heater | |
| CN108592647A (en) | A kind of carbon baking furnace automatically controlled and its control method | |
| TWI709720B (en) | System and method for adjusting heating capacity of water heater | |
| WO2024001710A1 (en) | Water heater, and control method and control apparatus therefor | |
| CN113266951B (en) | Control method and control system of gas water heater and gas water heater | |
| JP3999024B2 (en) | Multi-can installed boiler unit control device | |
| CN112066560A (en) | Self-adaptive ignition wall-mounted furnace and control method thereof | |
| CN114754497B (en) | Control method of gas water heater, gas water heater and readable storage medium | |
| CN212481368U (en) | Combustion furnace safety control device | |
| CN103528193A (en) | Startup and shutdown method capable of preventing misoperation for air energy water heater | |
| CN201837856U (en) | Gas wall hanging boiler parameter self-adaptive fuzzy control system | |
| CN208505015U (en) | A kind of dual-energy heating function furnace | |
| KR20130034739A (en) | Gas pressure drop detecting method using differential pressure sensor | |
| CN213630921U (en) | Self-adaptive ignition wall-mounted furnace | |
| CN112556195A (en) | Water heater control method and water heater | |
| JP2001272029A (en) | Boiler performing continuous combustion |
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 |