CN109442733A - A kind of control method of the zero cold water gas heater system with water circulating pump - Google Patents
A kind of control method of the zero cold water gas heater system with water circulating pump Download PDFInfo
- Publication number
- CN109442733A CN109442733A CN201811537656.1A CN201811537656A CN109442733A CN 109442733 A CN109442733 A CN 109442733A CN 201811537656 A CN201811537656 A CN 201811537656A CN 109442733 A CN109442733 A CN 109442733A
- Authority
- CN
- China
- Prior art keywords
- water
- circulating pump
- hot
- temperature
- return
- 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.)
- Pending
Links
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
- F24H9/0005—Details for water heaters
-
- 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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The control method for the zero cold water gas heater system with water circulating pump that the invention discloses a kind of, including the following steps: 1, user switch hot-water valve at least twice in T time；2, the return water temperature of return pipe is detected, if return water temperature is lower than start-up temperature, 3 is entered step, otherwise enters step 5；3, start water circulating pump and water heater, water in return pipe is heated to setting temperature；4, after return water temperature reaches start-up temperature, water circulating pump and water heater stop working；5, user opens hot-water valve, normal use water heater.Control method of the invention, by judging the size of return water temperature and start-up temperature, the cold water in hot-water line and return pipe is drawn into water heater with water circulating pump and is reheated, when user is again turned on hot-water valve, hot-water line just has the hot water of constant temperature to flow out, comfort and convenient when using user；Switch hot-water valve number is set as more than twice, it is therefore prevented that user misoperation leads to gas water heater working.
Description
Technical field
The present invention relates to a kind of control method of water-heater system more particularly to a kind of zero cold water combustion gas with water circulating pump
The control method of water-heater system, belongs to field of water heaters.
Background technique
Since the gas heater of family is typically mounted on living balcony, and bath water is in bathroom, from bathroom to kitchen
Fang Youyi sections of longer pipelines, generally have between 10-30 meters.Therefore, when user has a bath, the cold water having in pipeline must first be put
Can just there be hot water outflow out, and to release many cold water to come out hot water, prolonged wait is not said, wastes very
More water.Special weather turns cool when turn cold, and hot water does not come out for a long time.Therefore, it solves first put one before using hot water every time
Duan Lengshui becomes the generally existing use problem of gas heater industry.
In the prior art, the inside of gas heater is equipped with a small-sized water circulating pump, and user gets ahead before with hot water
Start water pump before to water heater, water pump can be extracted into the cold water in the water pipe in user family water heater and here be heated, so
It is transported to again in the water pipe in user family afterwards, after waiting the cold water in service pipes to be all heated into hot water, user is in bathroom or kitchen
Tap is opened in room, hot water flows out soon.But start to heating from water pump and complete to need the regular hour, and
And therefore some gas energies of consumption and electric power energy if starting circulatory function is not convenient enough, cause to want with hot water Shi Bufang
Just starting or error starting will reduce user experience and more consumption gas energies and electric power energy.
Summary of the invention
In order to solve problem above, the object of the present invention is to provide a kind of zero cold water gas heater system with water circulating pump
The control method of system, the water temperature for starting hot water line is identical as the start-up temperature that gas heater is set, and user repeatedly obscures
Hot water tap is switched, being again turned on hot water tap for a period of time just has the hot water of constant temperature to flow out, comfort and convenient.
In order to achieve the goal above, the technical solution adopted by the present invention:
A kind of control method of the zero cold water gas heater system with water circulating pump, including the following steps:
Step 1, user switch hot-water valve at least twice in T time；Hot-water valve at least switchs twice, that is, open and
The number for closing hot-water valve is no less than twice, is that user misoperation leads to the unnecessary work of gas heater in order to prevent
Make.
Step 2, detect return pipe return water temperature, if return water temperature be lower than start-up temperature, enter step 3, otherwise into
Enter step 5；
Water in return pipe is heated to setting temperature by step 3, starting water circulating pump and water heater；
After step 4, return water temperature reach start-up temperature, water circulating pump and water heater stop working；
Step 5, user open hot-water valve, normal use water heater.
Further, the gas heater system includes gas heater, cold water pipe, hot-water line, return pipe, air inlet
Pipe, water circulating pump, water flow sensor, return water temperature sensor and controller；
The cooling water inlet of the cooling water outlet end of the cold water pipe multiple Cold water taps and gas heater corresponding to the user
Connection；Hot-water line one end multiple hot-water valve connections corresponding to the user, the hot water outlet of the other end and gas heater
Connection；Described return pipe one end is connect with hot water pipe end, the return water import connection of the other end and water circulating pump；The air inlet pipe
The fuel gas inlet of gas heater is connected, the water circulating pump is mounted in gas heater.
The water flow sensor is mounted on the cooling water inlet end of gas heater, and the return water temperature sensor is mounted on
The return water input end of water circulating pump, the controller and the gas heater, water circulating pump, water flow sensor and return water temperature
Sensor is spent to be electrically connected.
User is opening hot-water valve, is then shut off in the operating time at least twice of hot-water valve, cooling water inlet end
Water flow sensor has detected that cold water passes through, and the information that cold water is passed through is sent to controller；The return water temperature of return water input end
The temperature for spending water in sensor detection return pipe, is sent to controller for return water temperature information；If return water temperature is less than starting temperature
Degree, the starting of controller control loop water pump control gas water heater working, and water circulating pump extracts cold in return pipe and hot-water line
Cold water in return pipe and hot-water line is extracted into water heater and heats by water, and hot-water line and return pipe form circuit, hot-water line with
Cold water pipe is not formed into a loop, therefore circulating pump will not be drawn into the cold water of cold water pipe.Until return water temperature sensor detects back
When coolant-temperature gage is greater than or equal to start-up temperature, controller control loop water pump and water heater stop working, at this time water in hot-water line
Temperature be start-up temperature, when user further opens hot-water valve, hot-water line just have constant temperature hot water flow out.
Further, the heat exchanger that the gas heater includes shell and interior of shell is set gradually from top to bottom,
Combustion chamber, blower and gas ratio valve.
Solderless wrapped connection heat exchanging water pipe on the heat exchanger, heat exchanging water pipe's input end are connect with water circulating pump outlet end, heat exchange
Pipe outlet end is connect with hot water outlet, and the input end of the gas ratio valve connects the fuel gas inlet, outlet end connection combustion
Room is burnt, the blower is set to bottom of combustion chamber；The heat exchanger, combustion chamber, blower and gas ratio valve with the control
Device is electrically connected.Combustion gas is burnt in the combustion chamber after gas ratio valve；Cold water is from cold water pipe and return pipe through water circulating pump
Afterwards, into the heat exchanging water pipe of heat exchanger, behind combustion chamber, cold water is heated to form hot water, flows out water heater from hot water outlet,
For users to use.
Further, being provided with check valve on the return pipe, prevent the cold water in cold water pipe from entering in return pipe.
Further, the water flow sensor includes copper valve body, water flow rotor component, current stabilization component and Hall member
Part, the Hall element are connect with controller signals.When water flow passes through rotor assembly, the magnet rotor of water flow rotor component turns
It is dynamic, and revolving speed, with the linear variation of flow, Hall element exports corresponding pulse signal and feeds back to controller, by controller
Judge water flow size；When specifically used, it is assumed that user switched hot-water valve twice in three seconds, and controller is according to water flow
Sensor pulse frequency significantlys change this feature twice, to reach the mesh of control starting gas heater and water circulating pump
's.
Further, the T is 2-4 seconds.
Further, the setting temperature is greater than start-up temperature.
Beneficial effects of the present invention:
Control method of the invention, by judging the size of return water temperature and start-up temperature, with water circulating pump by hot-water line
It is drawn into water heater with the cold water in return pipe to reheat, when user is again turned on hot-water valve, hot-water line just has constant temperature
Hot water outflow, comfort and convenient when using user；
The present invention is set as hot-water valve number is switched more than twice, it is therefore prevented that user misoperation leads to gas heater work
Make, and by the way that water flow sensor will significantly pulse frequency variation be sent to controller at least twice, is controlled convenient for controller
The work of water circulating pump and water heater；
Going to starting single cycle function, user on gas heater panel the invention avoids user can appoint at home
The hot water tap that anticipates starts circulatory function, saves combustion gas, electric power and water resource；At the same time, structure of the invention is simple, in tradition
Energy saving gas burning water heater on the basis of be only added to sensor and water circulating pump, reduce the cost of manufacture and use.
Detailed description of the invention
Fig. 1 is the flow chart of control method of the present invention；
Fig. 2 is the schematic diagram of gas heater system of the present invention；
Fig. 3 is the schematic diagram of water heater of the present invention；
In figure: 1, water heater；11, shell；12, heat exchanger；13, combustion chamber；14, blower；15, gas ratio valve；2, cold
Water pipe；3, hot-water line；4, return pipe；5, air inlet pipe；6, water circulating pump；7, check valve.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one with reference to the accompanying drawing
Step illustrates.In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
A kind of control method of the zero cold water gas heater system with water circulating pump, as shown in Figure 1, including following
Step:
Step 1, user switch hot-water valve at least twice in T time；
Step 2, detect return pipe 4 return water temperature, if return water temperature be lower than start-up temperature, enter step 3, otherwise into
Enter step 5；
Water in return pipe 4 is heated to setting temperature by step 3, starting water circulating pump 6 and water heater 1；
After step 4, return water temperature reach start-up temperature, water circulating pump 6 and water heater 1 stop working；
Step 5, user open hot-water valve, normal use water heater 1.
As prioritization scheme of the invention, as shown in Fig. 2, gas heater system include gas heater 1, cold water pipe 2,
Hot-water line 3, return pipe 4, air inlet pipe 5, water circulating pump 6, water flow sensor, return water temperature sensor and controller.
The cooling water inlet of the cooling water outlet end of cold water pipe 2 multiple Cold water taps corresponding to the user and gas heater 1 connects
It connects；The multiple hot-water valve connections corresponding to the user of 3 one end of hot-water line, the other end are connect with the hot water outlet of gas heater 1；
4 one end of return pipe is connect with 3 end of hot-water line, and the other end is connect with the return water import of water circulating pump 6；Air inlet pipe 5 connects combustion gas
The fuel gas inlet of water heater 1, water circulating pump 6 are mounted in gas heater 1.
Water flow sensor is mounted on the cooling water inlet end of gas heater 1, and return water temperature sensor is mounted on recirculated water
The return water input end of pump 6, controller and gas heater 1, water circulating pump 6, water flow sensor and return water temperature sensor electricity
Property connection.
As prioritization scheme of the invention, as shown in figure 3, gas heater 1 includes inside shell 11 and shell 11 from upper
Heat exchanger 12, combustion chamber 13, blower 14 and the gas ratio valve 15 set gradually under.
Solderless wrapped connection heat exchanging water pipe on heat exchanger 12, heat exchanging water pipe's input end are connect with 6 outlet end of water circulating pump, and heat exchanging water pipe goes out
Mouth end is connect with hot water outlet, and the input end of gas ratio valve 15 connects fuel gas inlet, and outlet end connects combustion chamber 13, blower 14
It is set to 13 bottom of combustion chamber；Heat exchanger 12, combustion chamber 13, blower 14 and gas ratio valve 15 are electrically connected with controller.
As prioritization scheme of the invention, check valve 7 is provided on return pipe 4.
As prioritization scheme of the invention, water flow sensor includes copper valve body, water flow rotor component, current stabilization component and suddenly
That element, Hall element are connect with controller signals.
As prioritization scheme of the invention, T is 2-4 seconds.
As prioritization scheme of the invention, temperature is set and is greater than start-up temperature.
In order to better understand the present invention, primary complete description is made to the working principle of the invention below:
In the present embodiment, start-up temperature is 40 DEG C, and setting temperature is 42 DEG C, and T is 3 seconds, and user switchs time of hot-water valve
Number is twice.
Control method specifically includes following steps:
Step 1, user switched hot-water valve twice within 3 second time；
Step 2, in this 3 seconds, cold water from the water flow sensor at cooling water inlet end pass through, water flow pass through rotor assembly
When, the magnet rotor rotation of water flow rotor component, and revolving speed is with the linear variation of flow, Hall element output corresponding two
Secondary significantly pulse signal feeds back to controller；Water in the return water temperature sensor detection return pipe 4 of return water input end simultaneously
Temperature information is sent to controller by temperature, and controller judges return water temperature according to return water temperature information and pulse signature messages
Whether it is less than 40 DEG C of start-up temperature, if being less than start-up temperature, enters next step, otherwise enter step 5.
Step 3, controller control loop water pump 6 start, and control gas heater 1 works, and water circulating pump 6 extracts return pipe
4 and hot-water line 3 in cold water, the cold water in return pipe 4 and hot-water line 3 is extracted into water heater 1 be heated to setting 42 DEG C of temperature,
Hot water enters in hot-water line 4 after heating.
Step 4, until return water temperature sensor detect return water temperature be start-up temperature when, controller control loop water pump
6 and water heater 1 stop working, at this time in hot-water line 3 water temperature start-up temperature and setting temperature between, i.e., 40-42 DEG C.
After step 5, user are again turned on hot-water valve, just there is the hot water of constant temperature to flow out in hot-water line 3, user can be normal
It taken a shower, wash vegetables or washed one's hands using water heater 1.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of control method of the zero cold water gas heater system with water circulating pump, which is characterized in that including following
Step:
Step 1, user switch hot-water valve at least twice in T time；
Step 2, the return water temperature for detecting return pipe (4) enter step 3, otherwise enter if return water temperature is lower than start-up temperature
Step 5；
Return pipe (4) interior water is heated to setting temperature by step 3, starting water circulating pump (6) and water heater (1)；
After step 4, return water temperature reach start-up temperature, water circulating pump (6) and water heater (1) stop working；
Step 5, user open hot-water valve, normal use water heater (1).
2. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 1, special
Sign is that the gas heater system includes gas heater (1), cold water pipe (2), hot-water line (3), return pipe (4), air inlet
Manage (5), water circulating pump (6), water flow sensor, return water temperature sensor and controller；
The cold water of cooling water outlet end multiple Cold water taps corresponding to the user of the cold water pipe (2) and gas heater (1) into
Mouth connection；Hot-water line (3) one end multiple hot-water valves corresponding to the user connect, the other end and gas heater (1)
Hot water outlet connection；Described return pipe (4) one end is connect with hot-water line (3) end, the return water of the other end and water circulating pump (6) into
Mouth connection；The fuel gas inlet of air inlet pipe (5) connection gas heater (1), the water circulating pump (6) are mounted on gas and hot water
In device (1)；
The water flow sensor is mounted on the cooling water inlet end of gas heater (1), and the return water temperature sensor is mounted on
The return water input end of water circulating pump (6), the controller and the gas heater (1), water circulating pump (6), water flow sense
Device and return water temperature sensor are electrically connected.
3. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 2, special
Sign is: the gas heater (1) includes the heat exchanger set gradually from top to bottom inside shell (11) and shell (11)
(12), combustion chamber (13), blower (14) and gas ratio valve (15)；
Solderless wrapped connection heat exchanging water pipe on the heat exchanger (12), heat exchanging water pipe's input end connect with water circulating pump (6) outlet end, change
Hot-water line outlet end is connect with hot water outlet, and the input end of the gas ratio valve (15) connects the fuel gas inlet, outlet end
It connects combustion chamber (13), the blower (14) is set to combustion chamber (13) bottom；The heat exchanger (12), combustion chamber (13), wind
Machine (14) and gas ratio valve (15) are electrically connected with the controller.
4. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 3, special
Sign is: being provided with check valve (7) on the return pipe (4).
5. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 4, special
Sign is: the water flow sensor includes copper valve body, water flow rotor component, current stabilization component and Hall element, the Hall member
Part is connect with controller signals.
6. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 5, special
Sign is that the T is 2-4 seconds.
7. a kind of control method of zero cold water gas heater system with water circulating pump according to claim 6, special
Sign is that the setting temperature is greater than start-up temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537656.1A CN109442733A (en) | 2018-12-15 | 2018-12-15 | A kind of control method of the zero cold water gas heater system with water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537656.1A CN109442733A (en) | 2018-12-15 | 2018-12-15 | A kind of control method of the zero cold water gas heater system with water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442733A true CN109442733A (en) | 2019-03-08 |
Family
ID=65559112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811537656.1A Pending CN109442733A (en) | 2018-12-15 | 2018-12-15 | A kind of control method of the zero cold water gas heater system with water circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442733A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186180A (en) * | 2019-04-12 | 2019-08-30 | 华帝股份有限公司 | Gas water heater, water outlet control method using gas water heater and pressurization control method |
| CN110513890A (en) * | 2019-09-07 | 2019-11-29 | 梅雪竹 | Natural gas in home water heater comprehensive valve control system temporarily stores up intelligence system |
| CN110579019A (en) * | 2019-10-26 | 2019-12-17 | 张国勋 | System device for realizing zero cold water of gas water heater without circulation |
| CN111174443A (en) * | 2020-02-25 | 2020-05-19 | 华帝股份有限公司 | Zero cold water control method of gas water heater |
| CN112944689A (en) * | 2021-03-06 | 2021-06-11 | 浙江大元泵业股份有限公司 | Circulating water pump control method capable of memorizing use habits of users |
| CN113310220A (en) * | 2021-06-02 | 2021-08-27 | 常州工业职业技术学院 | Zero-cold-water control system, control method and readable storage medium |
| CN114353334A (en) * | 2021-12-21 | 2022-04-15 | 广东万和热能科技有限公司 | Zero-cold-water gas water heater and control method, control device and storage medium thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936289A (en) * | 1989-02-21 | 1990-06-26 | Peterson George A | Usage responsive hot water recirculation system |
| JP2003106643A (en) * | 2001-09-28 | 2003-04-09 | Toto Ltd | Electric water heater |
| JP2012127531A (en) * | 2010-12-13 | 2012-07-05 | Mitsubishi Electric Corp | Water heater |
| JP2017122535A (en) * | 2016-01-06 | 2017-07-13 | 株式会社ガスター | Bath water heater |
| CN108036498A (en) * | 2017-12-07 | 2018-05-15 | 成都前锋电子有限责任公司 | A kind of gas heater and its intelligent booster control method |
| CN108036497A (en) * | 2017-12-07 | 2018-05-15 | 成都前锋电子有限责任公司 | A kind of gas heater and its preheating start-up and shut-down control method |
| CN108088069A (en) * | 2017-12-07 | 2018-05-29 | 成都前锋电子有限责任公司 | A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method |
| CN108088070A (en) * | 2017-12-07 | 2018-05-29 | 成都前锋电子有限责任公司 | A kind of Intelligent preheating gas heater and its subsystem and implementation method |
-
2018
- 2018-12-15 CN CN201811537656.1A patent/CN109442733A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936289A (en) * | 1989-02-21 | 1990-06-26 | Peterson George A | Usage responsive hot water recirculation system |
| JP2003106643A (en) * | 2001-09-28 | 2003-04-09 | Toto Ltd | Electric water heater |
| JP2012127531A (en) * | 2010-12-13 | 2012-07-05 | Mitsubishi Electric Corp | Water heater |
| JP2017122535A (en) * | 2016-01-06 | 2017-07-13 | 株式会社ガスター | Bath water heater |
| CN108036498A (en) * | 2017-12-07 | 2018-05-15 | 成都前锋电子有限责任公司 | A kind of gas heater and its intelligent booster control method |
| CN108036497A (en) * | 2017-12-07 | 2018-05-15 | 成都前锋电子有限责任公司 | A kind of gas heater and its preheating start-up and shut-down control method |
| CN108088069A (en) * | 2017-12-07 | 2018-05-29 | 成都前锋电子有限责任公司 | A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method |
| CN108088070A (en) * | 2017-12-07 | 2018-05-29 | 成都前锋电子有限责任公司 | A kind of Intelligent preheating gas heater and its subsystem and implementation method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186180A (en) * | 2019-04-12 | 2019-08-30 | 华帝股份有限公司 | Gas water heater, water outlet control method using gas water heater and pressurization control method |
| CN110513890A (en) * | 2019-09-07 | 2019-11-29 | 梅雪竹 | Natural gas in home water heater comprehensive valve control system temporarily stores up intelligence system |
| CN110579019A (en) * | 2019-10-26 | 2019-12-17 | 张国勋 | System device for realizing zero cold water of gas water heater without circulation |
| CN111174443A (en) * | 2020-02-25 | 2020-05-19 | 华帝股份有限公司 | Zero cold water control method of gas water heater |
| CN111174443B (en) * | 2020-02-25 | 2021-07-16 | 华帝股份有限公司 | Zero cold water control method of gas water heater |
| CN112944689A (en) * | 2021-03-06 | 2021-06-11 | 浙江大元泵业股份有限公司 | Circulating water pump control method capable of memorizing use habits of users |
| CN113310220A (en) * | 2021-06-02 | 2021-08-27 | 常州工业职业技术学院 | Zero-cold-water control system, control method and readable storage medium |
| CN114353334A (en) * | 2021-12-21 | 2022-04-15 | 广东万和热能科技有限公司 | Zero-cold-water gas water heater and control method, control device and storage medium thereof |
| CN114353334B (en) * | 2021-12-21 | 2023-08-04 | 广东万和热能科技有限公司 | Zero cold water gas water heater and control method, control device and storage medium thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109442733A (en) | A kind of control method of the zero cold water gas heater system with water circulating pump | |
| CN109442732A (en) | A kind of zero cold water gas heater system with water circulating pump | |
| CN109442729A (en) | A kind of zero cold water water outlet control method of zero cold water fuel wall hanging furnace system | |
| CN108036497A (en) | A kind of gas heater and its preheating start-up and shut-down control method | |
| CN108088069A (en) | A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method | |
| CN106322769A (en) | Water circulation control method of gas water heater, and gas water heater adopting water circulation control method | |
| CN109297179A (en) | Electric auxiliary preheating circulation gas water heater, preheating circulation system and control method | |
| CN109812978A (en) | A kind of water heater cold water reflux unit and the control method that flows back | |
| CN110094767A (en) | A kind of control method of gas stove waste heat recycling system | |
| CN110220314A (en) | Gas water heater control method and gas water heater | |
| CN209197119U (en) | A kind of zero cold water gas heater system with water circulating pump | |
| CN105485908A (en) | Hot water system and control method thereof | |
| CN108895672A (en) | Gas wall-mounted furnace | |
| CN109855284A (en) | A kind of domestic gas-fired water heater and its control method | |
| CN205373025U (en) | Water heating system | |
| CN208751007U (en) | Central hot water gas heater and its application system | |
| CN108088070A (en) | A kind of Intelligent preheating gas heater and its subsystem and implementation method | |
| CN110207247A (en) | Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler | |
| CN201628366U (en) | Gas water heater with a built-in circulation pump | |
| CN108489072A (en) | Central hot-water system, central heater and water heater control method | |
| CN209197117U (en) | A kind of zero cold water fuel wall hanging furnace system | |
| CN209197164U (en) | A kind of zero cold water burnt gas wall hanging furnace heating system with distal temperature detector | |
| CN208519967U (en) | Fire electric heater | |
| CN109442731A (en) | A kind of zero cold water fuel wall hanging furnace system | |
| CN206648315U (en) | A kind of water-saving device of 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
|
| RJ01 | Rejection of invention patent application after publication |