CN111854146B - Zero cold water gas water heater - Google Patents
Zero cold water gas water heater Download PDFInfo
- Publication number
- CN111854146B CN111854146B CN201910352626.1A CN201910352626A CN111854146B CN 111854146 B CN111854146 B CN 111854146B CN 201910352626 A CN201910352626 A CN 201910352626A CN 111854146 B CN111854146 B CN 111854146B
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- heat exchanger
- hole
- preheating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 295
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—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 in which the water is kept separate from the heating medium
- F24H1/124—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 in which the water is kept separate from 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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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 invention discloses a zero cold water gas water heater, which comprises a gas water heater body, a heat exchanger, a burner, a cold water pipeline, a hot water pipeline, a controller and a preheating component; the burner is arranged close to the heat exchanger to heat the heat exchanger, the controller is electrically connected with the burner to control the burner, and the hot water pipeline is arranged on the heat exchanger; the preheating component is positioned in the gas water heater body and forms an internal circulation preheating loop with the cold water pipeline, the hot water pipeline and the heat exchanger. The invention solves the problems that the burner and the water pump continuously work before the gas water heater is started for the second time, the gas and the electric quantity are wasted and the service life of the water pump is reduced.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to a zero-cooling water gas water heater.
Background
The prior art, zero cold water gas heater, including heat exchanger, combustor, controller, cold water pipe, rivers sensor, hot-water line, hot water outlet water temperature sensor, wet return, return water temperature sensor and water pump etc. the wet return is connected with the end of hot-water line, and sets up return water temperature sensor and water pump on the wet return, and wet return, water pump, cold water pipe, heat exchanger, hot-water line constitute the preheating loop.
Although the zero cold water function can be realized, when the gas water heater is in a power-off state, in order to realize secondary power-on, the water flowing out of the hot water pipe is hot water, the water pump and the burner are almost in a continuous working state, so that the waste of gas and electric quantity is caused, and meanwhile, the service life of the water pump is seriously reduced.
Disclosure of Invention
In view of the above, the invention provides a zero cold water gas water heater, which aims to solve the problems of fuel gas and electric quantity waste and service life reduction of a water pump caused by continuous operation of the water pump and a burner before secondary starting of the existing zero cold water gas water heater.
The technical scheme adopted by the invention is as follows: a zero cold water gas water heater comprises a gas water heater body, a heat exchanger, a burner, a cold water pipeline, a hot water pipeline, a controller and a preheating component; the burner is arranged close to the heat exchanger to heat the heat exchanger, the controller is electrically connected with the burner to control the burner, and the hot water pipeline is arranged on the heat exchanger; the preheating component is positioned in the gas water heater body and controlled by the controller, and forms an internal circulation preheating loop with the cold water pipeline, the hot water pipeline and the heat exchanger.
Preferably, the preheating device further comprises a water return pipeline which is communicated with the preheating component.
Preferably, the preheating component comprises an electromagnetic three-way valve, a water pump and a buffer tank which are sequentially communicated; the other two interfaces of the electromagnetic three-way valve are respectively communicated with a hot water pipeline and a water return pipeline; the buffer tank is arranged next to the heat exchanger and communicated with the cold water pipeline and the hot water pipeline to realize water circulation.
Preferably, the electromagnetic three-way valve comprises a pipe sleeve, an electromagnetic coil, a valve core and an elastic component; one end in the pipe sleeve is provided with an electromagnetic coil, and the other end is horizontally provided with an elastic component; the valve core is arranged in the pipe sleeve, one end of the valve core is sleeved in the electromagnetic coil, and the other end of the valve core is fixedly connected with the elastic component.
Preferably, the valve core comprises an electromagnetic rod and a moving rod fixedly connected with the electromagnetic rod.
Preferably, the movable rod is provided with a middle water through hole.
Preferably, the side wall of the pipe sleeve is provided with a first water through hole, a second water through hole and a third water through hole; when the electromagnetic coil is electrified, the valve core moves leftwards, and the first water through hole, the middle water through hole and the second water through hole are communicated in sequence; when the electromagnetic coil is powered off, the valve core moves rightwards, and the first water through hole, the middle water through hole and the third water through hole are sequentially communicated.
Preferably, the water heater further comprises a temperature measuring component, wherein the temperature measuring component is arranged on the preheating component and used for detecting the water temperature flowing out of the preheating component in real time.
Preferably, the water heater further comprises a water quantity detection assembly, wherein the water quantity detection assembly is arranged on the preheating assembly and used for detecting water flow flowing out of the preheating assembly in real time.
Preferably, a sealing ring is arranged between the valve core and the inner side wall of the pipe sleeve.
Compared with the prior art, the invention has the beneficial effects that:
Because the preheating component forms an internal circulation preheating loop with the cold water pipeline, the hot water pipeline and the heat exchanger, water in the internal circulation loop is in the gas water heater, and the gas water heater and the heat exchanger have heat preservation effect on the water in the internal circulation preheating loop, so that the problem that the water temperature in the internal circulation preheating loop drops too fast, and then the problems that the burner and the water pump continuously work before the gas water heater is started for the second time, the gas and the electric quantity are wasted and the service life of the water pump is reduced are solved.
Drawings
FIG. 1 is a schematic diagram of a zero-water chiller according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an electromagnetic three-way valve of a zero-water chiller provided by an embodiment of the present invention;
In the figure: 1. a gas water heater body; 2. a heat exchanger; 3. a burner; 4. a cold water pipeline; 5. a hot water pipeline; 6. a water return line; 7. a controller; 8. a preheating assembly; 9. a temperature measuring assembly; 10. a water quantity detection assembly; 81. an electromagnetic three-way valve; 82. a water pump; 83. a buffer tank; 811. a pipe sleeve; 812. an electromagnetic coil; 813. a valve core; 814. an elastic component; 8111. a first water through hole; 8112. a second water through hole; 8113. a third water through hole; 8131. an electromagnetic rod; 8132. a moving rod; 81321. a water through hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention provides a zero cold water gas water heater, which is shown in fig. 1, and comprises a gas water heater body 1, a heat exchanger 2, a burner 3, a cold water pipeline 4, a hot water pipeline 5, a controller 7 and a preheating component 8; the burner 3 is arranged close to the heat exchanger 2 to heat the heat exchanger 2, the controller 7 is electrically connected with the burner 3 to control the burner 3, and the hot water pipeline 5 is arranged on the heat exchanger 2; the preheating component 8 is positioned in the gas water heater body 1 and forms an internal circulation preheating loop with the cold water pipeline 4, the hot water pipeline 5 and the heat exchanger 2.
Because the preheating component 8 forms an internal circulation preheating loop with the cold water pipeline 4, the hot water pipeline 5 and the heat exchanger 2, water in the internal circulation loop is in the gas water heater, and the gas water heater and the heat exchanger have heat preservation effect on the water in the internal circulation preheating loop, so that the problem that the water temperature in the internal circulation preheating loop drops too fast, and then the burner and the water pump continuously work before the gas water heater is started for the second time, the gas and the electric quantity are wasted, and the service life of the water pump is reduced is solved.
The water return pipeline 6 is communicated with the preheating component 8, the water return pipeline 6, the preheating component 8, the cold water pipeline 4, the hot water pipeline 5 and the heat exchanger 2 form an external circulation preheating loop, so that cold water does not flow out in the hot water pipeline 5 in the process of secondary water use, and zero cold water is realized.
The preheating component 8 comprises an electromagnetic three-way valve 81, a water pump 82 and a buffer tank 83 which are communicated in sequence; the other two interfaces of the electromagnetic three-way valve 81 are respectively communicated with the hot water pipeline 5 and the water return pipeline 6; the buffer tank 83 is arranged next to the heat exchanger 2 and communicated with the cold water pipeline 4 and the hot water pipeline 5 to realize water circulation; the buffer tank 83 has a water storage function;
further comprises a temperature measuring component 9, wherein the temperature measuring component 9 is arranged on the preheating component 8 and is used for detecting the water temperature flowing out of the preheating component 8 in real time
The electromagnetic three-way valve 81, the water pump 82, the cold water pipeline 4, the buffer tank 83, the hot water pipeline 5 and the heat exchanger 2 form an internal circulation preheating loop. Before the gas water heater is started for the second time, the temperature measuring component 9 detects the water temperature flowing out of the buffer tank 83, if the water temperature is lower than the temperature set by the controller 7 (for example, the detected water temperature is lower than the temperature set by the controller 7 by 2 ℃), the controller 7 controls the water pump 82 to start, the combustor 3 ignites to heat the heat exchanger 2, and the water in the hot water pipe 5 flows to the hot water pipe 5 on the heat exchanger 2 through the electromagnetic three-way valve 81, the cold water pipe 4, the water pump 82 and the buffer tank 83, so that the internal circulation and heating of the water are realized; when the temperature measuring assembly 9 detects the water temperature flowing out of the buffer tank 83, if the water temperature is higher than the temperature set by the controller 7 (for example, the detected water temperature is 3 ℃ higher than the set temperature of the controller 7), the controller 7 controls the water pump 82 to stop working and controls the burner 3 to flameout, and at this time, the hot water pipeline 5 and the buffer tank 83 are filled with hot water. Because buffer tank 83 is in gas heater, and the next-door neighbour heat exchanger 2 sets up, then gas heater box has heat retaining effect to it, and buffer tank 83 and next-door neighbour heat exchanger 2's hot-water line 5 also can be transmitted to waste heat on the heat exchanger 2, realizes the heat preservation to the water in the inner loop preheating loop, can avoid the too fast reduction of temperature in the inner loop preheating loop, and the problem of the continuous work of water pump 82 and combustor 3 that arouses, and then practice thrift gas and electric quantity, improves the life of water pump simultaneously.
Solenoid three-way valve 81 includes a sleeve 811, a solenoid 812, a spool 813, and an elastic member 814; one end in the pipe sleeve 811 is provided with an electromagnetic coil 812, and the other end is horizontally provided with an elastic component 814; the valve core 813 is disposed in the sleeve 811, one end of which is sleeved in the electromagnetic coil 812, and the other end of which is fixedly connected with the elastic component 814. When solenoid 812 circular telegram, case 813 moves to the right, and water pump 82 and hot-water line 5 intercommunication, electromagnetic three-way valve 81, water pump 82, cold water pipeline 4, buffer tank 83, hot-water line 5 and heat exchanger 2 form the inner loop and preheat the return circuit, guarantee promptly that at the in-process of secondary start, do not have cold water outflow in the hot-water line 5, can practice thrift gas and electric quantity moreover, improve the life of water pump simultaneously. When solenoid 812 outage, case 813 moves left, and water pump 82 and return water pipeline 6 intercommunication, return water pipeline 6, electromagnetic three-way valve 81, water pump 82, cold water pipeline 4, hot water pipeline 5 and heat exchanger 2 form the extrinsic cycle and preheat the return circuit, can ensure at the in-process of secondary water use, does not have the cold water outflow in the hot water pipeline 5, realizes zero cold water.
The valve core 813 comprises an electromagnetic rod 8131 and a moving rod 8132 fixedly connected with the electromagnetic rod 8131, a middle water through hole 81321 is formed in the moving rod 8132, and a first water through hole 8111, a second water through hole 8112 and a third water through hole 8113 are formed in the side wall of the pipe sleeve 811; when the electromagnetic coil 812 is electrified, the valve core 813 moves leftwards, the first water through hole 8111, the middle water through hole 81321 and the second water through hole 8112 are sequentially communicated, namely the water pump 82 is communicated with the hot water pipeline 5, and the electromagnetic three-way valve 81, the water pump 82, the cold water pipeline 4, the buffer tank 83, the hot water pipeline 5 and the heat exchanger 2 form an internal circulation preheating loop, namely the fact that cold water does not flow out in the hot water pipeline 5 in the process of secondary startup is ensured, fuel gas and electric quantity can be saved, and meanwhile, the service life of the water pump is prolonged. When the electromagnetic coil 812 is powered off, the valve core 813 moves rightward, the first water through hole 8111, the middle water through hole 81321 and the third water through hole 8113 are sequentially communicated, namely, the water pump 82 is communicated with the water return pipeline 6, and the water return pipeline 6, the electromagnetic three-way valve 81, the water pump 82, the cold water pipeline 4, the hot water pipeline 5 and the heat exchanger 2 form an external circulation preheating loop, so that no cold water flows out in the hot water pipeline 5 in the process of secondary water use, and zero cold water is realized.
The water heater further comprises a water quantity detection component 10, the water quantity detection component 10 is arranged on the preheating component 8 and used for detecting water flow out of the preheating component 8 in real time, when the gas water heater is used for the second time, cold water enters the cold water pipeline 4, so that the water quantity flowing out of the preheating component 8 is increased, at the moment, the water quantity detection component 10 (for example, a water quantity sensor) feeds back detected information to the controller 7 in real time, when the water flow detected by the water quantity detection component 10 is larger than the set water flow of the controller 7, the controller 7 controls the combustor 3 to ignite, and the gas water heater enters a normal working state.
A seal ring (e.g., a silicone seal ring) is provided between the valve core 813 and the inner side wall of the pipe sleeve 811 to prevent water from flowing into the pipe sleeve 811.
The working process comprises the following steps:
Before the gas water heater is used for the second time, the electromagnetic three-way valve 81 is in a power-off state, the valve core 813 moves rightwards, the first water through hole 8111, the middle water through hole 81321 and the third water through hole 8113 are sequentially communicated, namely the water pump 82 is communicated with the water return pipeline 6, and the water return pipeline 6, the electromagnetic three-way valve 81, the water pump 82, the cold water pipeline 4, the hot water pipeline 5 and the heat exchanger 2 form an external circulation preheating loop; if the water temperature detected by the temperature measuring component 9 (such as a temperature sensor) is lower than the temperature set by a user, the controller 7 controls the water pump 82 to start, the burner 3 ignites, the external circulation preheating loop starts to operate, heating of water is realized, no cold water flows out of the hot water pipeline 5 when water is used for the second time, and zero cold water is realized.
Before the gas water heater is started up for the second time, the electromagnetic three-way valve 81 is in an electrified state, at the moment, the valve core 813 moves leftwards, the first water through hole 8111, the middle water through hole 81321 and the second water through hole 8112 are sequentially communicated, namely the water pump 82 is communicated with the hot water pipeline 5, and the electromagnetic three-way valve 81, the water pump 82, the cold water pipeline 4, the buffer tank 83, the hot water pipeline 5 and the heat exchanger 2 form an internal circulation preheating loop; if the water temperature detected by the temperature measuring component 9 (such as a temperature sensor) is lower than the temperature set by the controller, the controller 7 controls the water pump 82 to start, the burner 3 ignites, and the internal circulation preheating loop starts to operate, so that hot water flows out of the hot water pipeline 5 during secondary startup; because buffer tank 83 is in gas heater, and the next-door neighbour heat exchanger 2 sets up, then gas heater box has heat retaining effect to it, and buffer tank 83 and next-door neighbour heat exchanger 2's hot-water line 5 also can be transmitted to waste heat on the heat exchanger 2, realizes the heat preservation to the water in the inner loop preheating loop, can avoid the too fast reduction of temperature in the inner loop preheating loop, and the problem of the continuous work of water pump 82 and combustor 3 that arouses, and then practice thrift gas and electric quantity, improves the life of water pump simultaneously.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (6)
1. The zero cold water gas water heater is characterized by comprising a gas water heater body (1), a heat exchanger (2), a burner (3), a cold water pipeline (4), a hot water pipeline (5), a controller (7) and a preheating component (8); the burner (3) is arranged close to the heat exchanger (2) to heat the heat exchanger (2), the controller (7) is electrically connected with the burner (3) to control the burner (3), and the hot water pipeline (5) is arranged on the heat exchanger (2); the preheating component (8) is positioned in the gas water heater body (1) and is controlled by the controller (7), and the preheating component (8) forms an internal circulation preheating loop with the cold water pipeline (4), the hot water pipeline (5) and the heat exchanger (2);
The preheating assembly (8) comprises an electromagnetic three-way valve (81), a water pump (82) and a buffer tank (83) which are communicated in sequence; the other two interfaces of the electromagnetic three-way valve (81) are respectively communicated with the hot water pipeline (5) and the water return pipeline (6); the buffer tank (83) is arranged close to the heat exchanger (2) and communicated with the cold water pipeline (4) and the hot water pipeline (5) to realize water circulation;
The electromagnetic three-way valve (81) comprises a pipe sleeve (811), an electromagnetic coil (812), a valve core (813) and an elastic component (814); one end in the pipe sleeve (811) is provided with an electromagnetic coil (812), and the other end is horizontally provided with an elastic component (814); the valve core (813) is arranged in the pipe sleeve (811), one end of the valve core is sleeved in the electromagnetic coil (812), and the other end of the valve core is fixedly connected with the elastic component (814);
A middle water through hole (81321) is formed in the movable rod (8132);
A first water through hole (8111), a second water through hole (8112) and a third water through hole (8113) are formed in the side wall of the pipe sleeve (811); when the electromagnetic coil (812) is electrified, the valve core (813) moves leftwards, and the first water through hole (8111), the middle water through hole (81321) and the second water through hole (8112) are communicated in sequence; when the electromagnetic coil (812) is powered off, the valve core (813) moves rightwards, and the first water through hole (8111), the middle water through hole (81321) and the third water through hole (8113) are sequentially communicated;
The zero cold water gas water heater comprises a temperature measuring component (9).
2. The zero cold water gas water heater according to claim 1, comprising a return water line (6), said return water line (6) being in communication with the preheating assembly (8).
3. The zero-cold water gas water heater according to claim 2, wherein the valve core (813) comprises an electromagnetic rod (8131) and a moving rod (8132) fixedly connected to the electromagnetic rod (8131).
4. A zero cold water gas water heater according to claim 3, wherein the temperature measuring assembly (9) is arranged on the preheating assembly (8) for detecting the water temperature flowing out of the preheating assembly (8) in real time.
5. The zero cold water gas water heater as claimed in claim 4, comprising a water quantity detection assembly (10), said water quantity detection assembly (10) being provided on the preheating assembly (8) for detecting in real time the water flow out of the preheating assembly (8).
6. A zero cold water gas water heater according to claim 3, wherein a sealing ring is provided between the valve core (813) and the inner side wall of the pipe sleeve (811).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352626.1A CN111854146B (en) | 2019-04-29 | 2019-04-29 | Zero cold water gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352626.1A CN111854146B (en) | 2019-04-29 | 2019-04-29 | Zero cold water gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111854146A CN111854146A (en) | 2020-10-30 |
| CN111854146B true CN111854146B (en) | 2024-04-19 |
Family
ID=72966605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910352626.1A Active CN111854146B (en) | 2019-04-29 | 2019-04-29 | Zero cold water gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111854146B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218341Y (en) * | 1995-01-20 | 1996-01-24 | 国营三益电子计算机公司 | Automatic water heater using gas fuel |
| JPH1182802A (en) * | 1997-08-29 | 1999-03-26 | Mikuni Adetsuku:Kk | Solenoid valve |
| CN102537413A (en) * | 2010-12-20 | 2012-07-04 | 陈则韶 | Three-way valve with electromagnetic pilot sliding valve for air-conditioner water heater |
| 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 |
| CN109297180A (en) * | 2017-07-25 | 2019-02-01 | 青岛经济技术开发区海尔热水器有限公司 | Intelligent preheating circulation gas water heater, preheating circulation system and control method |
| CN210141696U (en) * | 2019-04-29 | 2020-03-13 | 华帝股份有限公司 | Zero-cold-water gas water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040118453A1 (en) * | 2002-12-19 | 2004-06-24 | George Staranchuk | Automatic lock shutoff valve for water systems |
-
2019
- 2019-04-29 CN CN201910352626.1A patent/CN111854146B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218341Y (en) * | 1995-01-20 | 1996-01-24 | 国营三益电子计算机公司 | Automatic water heater using gas fuel |
| JPH1182802A (en) * | 1997-08-29 | 1999-03-26 | Mikuni Adetsuku:Kk | Solenoid valve |
| CN102537413A (en) * | 2010-12-20 | 2012-07-04 | 陈则韶 | Three-way valve with electromagnetic pilot sliding valve for air-conditioner water heater |
| 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 |
| CN109297180A (en) * | 2017-07-25 | 2019-02-01 | 青岛经济技术开发区海尔热水器有限公司 | Intelligent preheating circulation gas water heater, preheating circulation system and control method |
| CN210141696U (en) * | 2019-04-29 | 2020-03-13 | 华帝股份有限公司 | Zero-cold-water gas water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111854146A (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210141696U (en) | Zero-cold-water gas water heater | |
| CN105972814B (en) | Gas wall-mounted furnace and water supplementing control method, control device and control system | |
| CN104180425B (en) | A kind of high-power central hot radiator of family expenses Dual-energy source | |
| CN104879909A (en) | Gas water heater | |
| CN111854146B (en) | Zero cold water gas water heater | |
| CN103123165A (en) | Heat storage type electric water heater capable of instantly supplying water and control method thereof | |
| CN204902203U (en) | Gas water heater | |
| CN202660755U (en) | Gas water heater | |
| CN208687998U (en) | layered heating water tank and water heater | |
| CN203771666U (en) | Water heater | |
| CN203686251U (en) | Plate-exchange integrated waterway for gas-fired heat-supply water-heating stove and water outlet valve of plate-exchange integrated waterway | |
| CN203657171U (en) | Circulating instant energy-saving water heater | |
| CN206037384U (en) | Gas wall-mounted furnace and water supplementing control device and control system | |
| CN213713585U (en) | Hot water supply system | |
| CN212566260U (en) | Water heater | |
| CN212205039U (en) | Water heater | |
| CN211854485U (en) | Solar energy and gas combined constant temperature water heater | |
| CN212362422U (en) | Water heater | |
| CN109612109B (en) | Cold water recovery type hot water system and cold water recovery method | |
| CN211290523U (en) | Novel gas water heater | |
| CN211290575U (en) | External control module of gas water heater and gas water heater system thereof | |
| CN208205161U (en) | A kind of combustion pump complementary heating, hot water supply system | |
| CN204006282U (en) | The hot radiator of a kind of high-power central authorities of family expenses Dual-energy source | |
| JP3714215B2 (en) | Hot water system | |
| CN210345641U (en) | Automatic exhaust device for radiator |
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 |