CN109442732A - A kind of zero cold water gas heater system with water circulating pump - Google Patents
A kind of zero cold water gas heater system with water circulating pump Download PDFInfo
- Publication number
- CN109442732A CN109442732A CN201811537649.1A CN201811537649A CN109442732A CN 109442732 A CN109442732 A CN 109442732A CN 201811537649 A CN201811537649 A CN 201811537649A CN 109442732 A CN109442732 A CN 109442732A
- Authority
- CN
- China
- Prior art keywords
- water
- hot
- gas heater
- circulating pump
- pipe
- 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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The zero cold water gas heater system with water circulating pump that the invention discloses a kind of, including 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 outlet end of cold water pipe multiple cold valves corresponding to the user are connected with the cooling water inlet of gas heater, hot-water line is connected to one end of return pipe, and multiple hot water valve connections corresponding to the user, the other end is connect with the return water import of the hot water outlet of gas heater and water circulating pump respectively, and air inlet pipe connects the fuel gas inlet of gas heater.Cold water in hot-water line and return pipe is drawn into water heater by water circulating pump and reheated by invention, and when user being made to open hot water valve, hot-water line just has the hot water of constant temperature to flow out, comfort and convenient；It avoids user and goes to starting single cycle function on gas heater panel, user any hot water tap can start circulatory function at home, save combustion gas, electric power and water resource.
Description
Technical field
The present invention relates to a kind of water-heater system more particularly to a kind of zero cold water gas heater systems with water circulating pump
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
System, keeps the water temperature of hot water line identical as gas heater set temperature, the multiple Fuzzy switch hot water tap of user, a period of time
Being again turned on hot water tap 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 zero cold water gas heater system with water circulating pump, including gas heater, cold water pipe, hot-water line, return
Water 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 valves corresponding to the user and gas heater connects
It connects；The hot water outlet of hot-water line one end multiple hot water valve connections corresponding to the user, the other end and gas heater connects；
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 connection
The fuel gas inlet of gas heater, the water circulating pump are 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 this period of hot water valve, the water flow sensor at cooling water inlet end
Detect that cold water passes through, the information that cold water is passed through is sent to controller；The return water temperature sensor of return water input end detects
The temperature of water in return pipe, is sent to controller for temperature information；If temperature is less than preset temperature, controller control loop water pump
Starting controls gas water heater working, and water circulating pump extracts the cold water in return pipe and hot-water line, will be in return pipe and hot-water line
Cold water be extracted into heating in water heater, hot-water line and return pipe form circuit, and hot-water line is not formed into a loop with cold water pipe, therefore
Circulating pump will not be drawn into the cold water of cold water pipe.When return water temperature sensor detects that return water temperature is preset temperature, control
Device control loop water pump processed stops working, and the temperature of water is default water temperature in hot-water line at this time, when user further opens hot water valve,
Hot-water line just has the hot water of constant temperature to 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, user can switch hot water valve twice in three seconds, prevent user misoperation from causing
Water heater working, controller significantly change this feature according to water flow sensor pulse frequency twice, open to reach control
The purpose of dynamic gas heater.
Beneficial effects of the present invention: the cold water in hot-water line and return pipe is drawn into hot water by water circulating pump by the present invention
Device reheats, and when user being made to open hot water valve, hot-water line just has the hot water of constant temperature to flow out, comfort and convenient；User is avoided to walk
Start single cycle function on to gas heater panel, user any hot water tap can start circulatory function, section at home
About combustion gas, electric power and water resource, and be not easy to malfunction；Structure is simple, on the basis of traditional energy saving gas burning water heater
It is only added to sensor and water circulating pump, reduces the cost of manufacture and use.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention；
Fig. 2 is the structural 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 zero cold water gas heater system with water circulating pump, as illustrated in fig. 1 and 2, including it is 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 outlet end of cold water pipe 2 multiple cold valves corresponding to the user are connected with the cooling water inlet of gas heater 1；
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；Return water
4 one end of 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, and air inlet pipe 5 connects gas and hot water
The fuel gas inlet of device 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, gas heater 1 includes successively setting from top to bottom inside shell 11 and shell 11
Heat exchanger 12, combustion chamber 13, blower 14 and the gas ratio valve 15 set.
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.
In order to better understand the present invention, primary complete description is made to the working principle of the invention below:
User switchs hot-water valve twice in three seconds when using water heater, during this period of time, cold water from cold water into
The water flow sensor at mouth end passes through, when water flow passes through rotor assembly, the magnet rotor rotation of water flow rotor component, and revolving speed
With the linear variation of flow, Hall element output is corresponding, and significantly pulse signal feeds back to controller twice；Return water simultaneously
The temperature of water, is sent to controller for temperature information in the return water temperature sensor detection return pipe 4 of input end, controller according to
Return water temperature information and pulse signature messages, judge whether return water temperature is greater than preset temperature；If temperature is less than preset temperature, control
Device control loop water pump 6 processed starts, and control gas heater 1 works, and water circulating pump 6 extracts cold in return pipe 4 and hot-water line 3
Cold water in return pipe 4 and hot-water line 3 is extracted into water heater 1 and heats by water, enters in hot-water line 4 after heating；Until return water temperature
When degree sensor detects that return water temperature is preset temperature, controller control loop water pump 6 stops working, at this time in hot-water line 3
The temperature of water is default water temperature, when user further opens hot water valve, just has the hot water of constant temperature to flow out in hot-water line 3.
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 (4)
1. a kind of zero cold water gas heater system with water circulating pump, it is characterised in that: including gas heater (1), cold water
Manage (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 cooling water outlet the end multiple cold valves corresponding to the user and gas heater (1) of the cold water pipe (2)
Connection；Hot-water line (3) one end multiple hot water valve connections corresponding to the user, the hot water of the other end and gas heater (1)
Outlet connection；Described return pipe (4) one end is connect with hot-water line (3) end, and the return water import of the other end and water circulating pump (6) connects
It connects, the fuel gas inlet of air inlet pipe (5) connection gas heater (1), the water circulating pump (6) is mounted on gas heater
(1) in；
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.
2. a kind of zero cold water gas heater system with water circulating pump according to claim 1, it is characterised in that: described
Gas heater (1) includes the heat exchanger (12) set gradually from top to bottom inside shell (11) and shell (11), 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.
3. a kind of zero cold water gas heater system with water circulating pump according to claim 2, it is characterised in that: described
Check valve (7) are provided on return pipe (4).
4. a kind of zero cold water gas heater system with water circulating pump according to claim 3, it is characterised in that: described
Water flow sensor includes copper valve body, water flow rotor component, current stabilization component and Hall element, and the Hall element and controller are believed
Number connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537649.1A CN109442732A (en) | 2018-12-15 | 2018-12-15 | A kind of zero cold water gas heater system with water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537649.1A CN109442732A (en) | 2018-12-15 | 2018-12-15 | A kind of zero cold water gas heater system with water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442732A true CN109442732A (en) | 2019-03-08 |
Family
ID=65559133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811537649.1A Pending CN109442732A (en) | 2018-12-15 | 2018-12-15 | A kind of zero cold water gas heater system with water circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442732A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094874A (en) * | 2019-06-10 | 2019-08-06 | 中燃宝电气（深圳）有限公司 | A kind of zero cold water gas heater |
| 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 |
| CN110793213A (en) * | 2019-11-20 | 2020-02-14 | 成都前锋电子有限责任公司 | Water servo faucet system capable of adjusting temperature and gas water heater system |
| CN110806013A (en) * | 2019-11-08 | 2020-02-18 | 华帝股份有限公司 | Control method of zero-cold-water gas water heater and zero-cold-water gas water heater |
| CN113669785A (en) * | 2021-03-30 | 2021-11-19 | 青岛海尔新能源电器有限公司 | Water supply system with whole house pressure boost and return water function |
| CN115060006A (en) * | 2022-01-30 | 2022-09-16 | 江苏海事职业技术学院 | Household central hot water circulating gas water heater |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09133404A (en) * | 1995-11-09 | 1997-05-20 | Rinnai Corp | Water heater |
| CN102393071A (en) * | 2011-06-10 | 2012-03-28 | 樊华 | Intelligent backwater air energy heat pump water heater |
| CN104633945A (en) * | 2015-01-30 | 2015-05-20 | 芜湖美的厨卫电器制造有限公司 | Method and system for controlling gas water heater and gas water heater |
| CN204478508U (en) * | 2015-02-05 | 2015-07-15 | 广东万和新电气股份有限公司 | Gas heater |
| CN204574515U (en) * | 2015-03-31 | 2015-08-19 | 广东万和新电气股份有限公司 | Domestic hot water system |
| WO2016019661A1 (en) * | 2014-08-07 | 2016-02-11 | 珠海格力电器股份有限公司 | Drainage device and method and dehumidifier |
| CN205561221U (en) * | 2016-04-18 | 2016-09-07 | 中山市恒乐电器有限公司 | Zero cooling water ciculation formula gas heater |
| CN106322769A (en) * | 2016-08-30 | 2017-01-11 | 宁波方太厨具有限公司 | Water circulation control method of gas water heater, and gas water heater adopting water circulation control method |
| CN106369807A (en) * | 2016-10-20 | 2017-02-01 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heater and system thereof |
| CN206739586U (en) * | 2017-04-27 | 2017-12-12 | 广东科大方正电气股份有限公司 | A kind of water heater of intelligent talent for swimming multiparty control |
| 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 |
| 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 |
| CN108195059A (en) * | 2017-12-29 | 2018-06-22 | Tcl家用电器（中山）有限公司 | Zero cold water gas heater, system and anti-dry method |
| CN207585065U (en) * | 2017-12-04 | 2018-07-06 | 广东四季福燃气具有限公司 | A kind of gas heater of zero cold water of strong odd test of low noise |
| CN108469118A (en) * | 2018-03-09 | 2018-08-31 | 中山市今大金属制品有限公司 | A kind of the water supply of water heater system and control method of postposition circulating pump |
| CN208012117U (en) * | 2018-01-31 | 2018-10-26 | 广东万和新电气股份有限公司 | Shared gas heater device |
| CN209197119U (en) * | 2018-12-15 | 2019-08-02 | 成都前锋电子有限责任公司 | A kind of zero cold water gas heater system with water circulating pump |
-
2018
- 2018-12-15 CN CN201811537649.1A patent/CN109442732A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09133404A (en) * | 1995-11-09 | 1997-05-20 | Rinnai Corp | Water heater |
| CN102393071A (en) * | 2011-06-10 | 2012-03-28 | 樊华 | Intelligent backwater air energy heat pump water heater |
| WO2016019661A1 (en) * | 2014-08-07 | 2016-02-11 | 珠海格力电器股份有限公司 | Drainage device and method and dehumidifier |
| CN104633945A (en) * | 2015-01-30 | 2015-05-20 | 芜湖美的厨卫电器制造有限公司 | Method and system for controlling gas water heater and gas water heater |
| CN204478508U (en) * | 2015-02-05 | 2015-07-15 | 广东万和新电气股份有限公司 | Gas heater |
| CN204574515U (en) * | 2015-03-31 | 2015-08-19 | 广东万和新电气股份有限公司 | Domestic hot water system |
| CN205561221U (en) * | 2016-04-18 | 2016-09-07 | 中山市恒乐电器有限公司 | Zero cooling water ciculation formula gas heater |
| CN106322769A (en) * | 2016-08-30 | 2017-01-11 | 宁波方太厨具有限公司 | Water circulation control method of gas water heater, and gas water heater adopting water circulation control method |
| CN106369807A (en) * | 2016-10-20 | 2017-02-01 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heater and system thereof |
| CN206739586U (en) * | 2017-04-27 | 2017-12-12 | 广东科大方正电气股份有限公司 | A kind of water heater of intelligent talent for swimming multiparty control |
| CN207585065U (en) * | 2017-12-04 | 2018-07-06 | 广东四季福燃气具有限公司 | A kind of gas heater of zero cold water of strong odd test of low noise |
| 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 |
| 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 |
| CN108195059A (en) * | 2017-12-29 | 2018-06-22 | Tcl家用电器（中山）有限公司 | Zero cold water gas heater, system and anti-dry method |
| CN208012117U (en) * | 2018-01-31 | 2018-10-26 | 广东万和新电气股份有限公司 | Shared gas heater device |
| CN108469118A (en) * | 2018-03-09 | 2018-08-31 | 中山市今大金属制品有限公司 | A kind of the water supply of water heater system and control method of postposition circulating pump |
| CN209197119U (en) * | 2018-12-15 | 2019-08-02 | 成都前锋电子有限责任公司 | A kind of zero cold water gas heater system with water circulating pump |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094874A (en) * | 2019-06-10 | 2019-08-06 | 中燃宝电气（深圳）有限公司 | A kind of zero cold water gas heater |
| 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 |
| CN110806013A (en) * | 2019-11-08 | 2020-02-18 | 华帝股份有限公司 | Control method of zero-cold-water gas water heater and zero-cold-water gas water heater |
| CN110793213A (en) * | 2019-11-20 | 2020-02-14 | 成都前锋电子有限责任公司 | Water servo faucet system capable of adjusting temperature and gas water heater system |
| CN113669785A (en) * | 2021-03-30 | 2021-11-19 | 青岛海尔新能源电器有限公司 | Water supply system with whole house pressure boost and return water function |
| CN113669785B (en) * | 2021-03-30 | 2024-02-09 | 青岛海尔新能源电器有限公司 | Water supply system with full-house pressurizing and backwater functions |
| CN115060006A (en) * | 2022-01-30 | 2022-09-16 | 江苏海事职业技术学院 | Household central hot water circulating gas water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109442732A (en) | A kind of zero cold water gas heater system with water circulating pump | |
| CN109442733A (en) | A kind of control method of the 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 | |
| CN108088069A (en) | A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method | |
| CN108036497A (en) | A kind of gas heater and its preheating start-up and shut-down control method | |
| EP3333493B1 (en) | Water circulation module and hot water system using the same | |
| CN2884024Y (en) | Curculation and water-saving type backwater device of water-heater | |
| CN201885402U (en) | Energy-saving and cyclic control system for water heater | |
| CN103322682A (en) | Domestic water circulation system | |
| CN106871428A (en) | A kind of antifreeze boosting type gas heater | |
| CN209197119U (en) | A kind of zero cold water gas heater system with water circulating pump | |
| CN109812978A (en) | A kind of water heater cold water reflux unit and the control method that flows back | |
| CN110440443A (en) | A kind of water-heater system | |
| CN105485908A (en) | Hot water system and control method thereof | |
| CN205825411U (en) | A kind of gas heater of band heating function | |
| CN108088070A (en) | A kind of Intelligent preheating gas heater and its subsystem and implementation method | |
| CN208253971U (en) | Water-heater system | |
| CN208751007U (en) | Central hot water gas heater and its application system | |
| CN2929565Y (en) | Cold water recovery and heating device in gas water heater water outlet pipe | |
| CN201628366U (en) | Gas water heater with a built-in circulation pump | |
| CN209197117U (en) | A kind of zero cold water fuel wall hanging furnace system | |
| CN101598361B (en) | Heating system with the combination of solar water heater and wall-mounted boiler | |
| CN208519967U (en) | Fire electric heater | |
| CN206648315U (en) | A kind of water-saving device of water heater | |
| CN109442731A (en) | A kind of zero cold water fuel wall hanging furnace system |
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 |