CN111854146A - Zero-cold water gas water heater - Google Patents
Zero-cold water gas water heater Download PDFInfo
- Publication number
- CN111854146A CN111854146A CN201910352626.1A CN201910352626A CN111854146A CN 111854146 A CN111854146 A CN 111854146A CN 201910352626 A CN201910352626 A CN 201910352626A CN 111854146 A CN111854146 A CN 111854146A
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- water
- cold
- pipeline
- heat exchanger
- zero
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 304
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- 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
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- 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
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- 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 assembly, wherein the heat exchanger is arranged on the gas water heater body; the burner is arranged close to the heat exchanger to realize heating of the heat exchanger, the controller is electrically connected with the burner to realize control of the burner, and the hot water pipeline is arranged on the heat exchanger; the preheating assembly 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 combustor 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 shortened.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to a zero-cold-water gas water heater.
Background
At present, in the prior art, a zero-cold-water gas water heater comprises a heat exchanger, a burner, a controller, a cold water pipe, a water flow sensor, a hot water pipe, a hot water outlet temperature sensor, a water return pipe, a return water temperature sensor, a water pump and the like, wherein the water return pipe is connected with the tail end of the hot water pipe, the return water temperature sensor and the water pump are arranged on the water return pipe, and the water return pipe, the water pump, the cold water pipe, the heat exchanger and the hot water pipe form a preheating loop.
Although the function of zero cold water can be realized, when the gas water heater is in a shutdown state, in order to realize the secondary startup, 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, and aims to solve the problems of waste of gas and electricity and reduction of the service life of a water pump caused by continuous operation of the water pump and a burner before secondary start of the conventional 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 assembly; the burner is arranged close to the heat exchanger to realize heating of the heat exchanger, the controller is electrically connected with the burner to realize control of the burner, and the hot water pipeline is arranged on the heat exchanger; the preheating assembly is positioned in the gas water heater body and is controlled by the controller, and the preheating assembly, the cold water pipeline, the hot water pipeline and the heat exchanger form an internal circulation preheating loop.
Preferably, the preheating device further comprises a water return pipeline, and the water return pipeline is communicated with the preheating component.
Preferably, the preheating assembly 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 the hot water pipeline and the water return pipeline; the buffer tank is arranged close 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 moving rod is provided with a central water through hole.
Preferably, a first water through hole, a second water through hole and a third water through hole are formed in the side wall of the pipe sleeve; 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 communicated in sequence.
Preferably, the temperature measuring device further comprises a temperature measuring component, and the temperature measuring component is arranged on the preheating component and used for detecting the temperature of water flowing out of the preheating component in real time.
Preferably, the water preheating device further comprises a water quantity detection assembly, wherein the water quantity detection assembly is arranged on the preheating assembly and is used for detecting the 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 preheat subassembly and cold water pipeline, hot water pipeline and heat exchanger formation inner loop and preheat the return circuit, water in the inner loop all is in gas heater, and gas heater and heat exchanger all have heat retaining effect to the water in inner loop preheating return circuit, avoid inner loop preheating return circuit in the water temperature too fast that falls, and then before having solved gas heater secondary start, combustor and water pump continue to work, extravagant gas, the electric quantity to and reduce water pump life's problem.
Drawings
FIG. 1 is a schematic structural diagram of a zero-cold-water heater according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an electromagnetic three-way valve of a zero-cold-water heater according to 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 line; 5. a hot water pipeline; 6. a water return pipeline; 7. a controller; 8. a preheating assembly; 9. a temperature measuring component; 10. a water quantity detection assembly; 81. an electromagnetic three-way valve; 82. a water pump; 83. a buffer tank; 811. pipe sleeve; 812. an electromagnetic coil; 813. a valve core; 814. an elastic component; 8111. a first water passage hole; 8112. a second water through hole; 8113. a third water through hole; 8131. an electromagnetic bar; 8132. a travel bar; 81321. a middle water through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a zero-cold-water gas water heater, which comprises a gas water heater body 1, a heat exchanger 2, a combustor 3, a cold water pipeline 4, a hot water pipeline 5, a controller 7 and a preheating assembly 8, wherein the heat exchanger 2 is arranged in the gas water heater body; the combustor 3 is arranged close to the heat exchanger 2 to realize heating of the heat exchanger 2, the controller 7 is electrically connected with the combustor 3 to realize control of the combustor 3, and the hot water pipeline 5 is arranged on the heat exchanger 2; the preheating assembly 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 preheat subassembly 8 and cold water pipeline 4, hot water pipeline 5 and heat exchanger 2 formation inner loop and preheat the return circuit, water in the inner loop all is in gas heater, gas heater and heat exchanger all have heat retaining effect to the water in inner loop preheating return circuit, avoid the inner loop to preheat the interior water temperature of return circuit and descend too fast, and then before having solved gas heater secondary start, combustor and water pump continue to work, extravagant gas, the electric quantity to and reduce water pump life's problem.
Further include return water pipeline 6, return water pipeline 6 and preheating component 8 intercommunication, return water pipeline 6, preheating component 8, cold water pipeline 4, hot-water line 5 and heat exchanger 2 form the extrinsic cycle and preheat the return circuit, can ensure at the in-process of secondary water, can not have cold water in the hot-water line 5 to flow out, realize zero cold water.
The preheating component 8 comprises an electromagnetic three-way valve 81, a water pump 82 and a buffer tank 83 which are sequentially communicated; 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 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 temperature of the water 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 temperature of water flowing out of the buffer tank 83, if the temperature of the water 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 be started, the burner 3 is ignited to heat the heat exchanger 2, 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 pipeline 4, the water pump 82 and the buffer tank 83, and internal circulation and heating of the water are achieved; when the temperature measuring component 9 detects the temperature of the water flowing out of the buffer tank 83, if the temperature of the water is higher than the temperature set by the controller 7 (for example, the detected temperature of the water is 3 ℃ higher than the temperature set by the controller 7), the controller 7 controls the water pump 82 to stop working, controls the burner 3 to shut down, and at this time, the hot water pipeline 5 and the buffer tank 83 are filled with hot water. Because the buffer tank 83 is in the gas water heater, and is arranged close to the heat exchanger 2, the gas water heater box has a heat preservation effect on the gas water heater, the waste heat on the heat exchanger 2 can be transmitted to the buffer tank 83 and the hot water pipeline 5 close to the heat exchanger 2, the heat preservation of the water in the internal circulation preheating loop is realized, the problem that the water temperature in the internal circulation preheating loop is too fast reduced, the water pump 82 and the combustor 3 which are caused work continuously is solved, the gas and the electric quantity are saved, and the service life of the water pump is prolonged.
The electromagnetic three-way valve 81 includes a socket 811, an electromagnetic coil 812, a spool 813, and an elastic member 814; an electromagnetic coil 812 is arranged at one end in the pipe sleeve 811, and an elastic component 814 is horizontally arranged at the other end; the valve core 813 is disposed in the pipe sleeve 811, and one end of the valve core is sleeved in the electromagnetic coil 812, and the other end of the valve core is fixedly connected to the elastic component 814. When the electromagnetic coil 812 is electrified, the valve core 813 moves to the right, the water pump 82 is communicated with the hot water pipeline 5, 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, cold water cannot flow out of the hot water pipeline 5 in the process of secondary startup, 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 to the left, the water pump 82 is communicated with 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, cold water cannot flow out of the hot water pipeline 5 in the process of secondary water use, and zero cold water is achieved.
The valve core 813 comprises an electromagnetic rod 8131 and a movable rod 8132 fixedly connected with the electromagnetic rod 8131, wherein a middle water through hole 81321 is formed in the movable 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, 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, cold water cannot flow out from the hot water pipeline 5 in the process of secondary startup, 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 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, 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, cold water cannot flow out from the hot water pipeline 5 in the process of secondary water utilization, and zero cold water is achieved.
Further include water yield determine module 10, water yield determine module 10 sets up and is used for the discharge of real-time detection outflow preheat subassembly 8 on preheat subassembly 8, when the secondary uses gas heater, there is cold water to get into in cold water pipeline 4, lead to flowing out preheat the water yield increase of subassembly 8, water yield determine module 10 (for example water yield sensor) feeds back the information that detects to controller 7 in real time this moment, when the discharge that water yield determine module 10 detected is bigger than the flow that controller 7 set for, controller 7 control combustor 3 ignites, gas heater gets into the state of normal work.
A sealing ring (such as a silica gel sealing ring) is arranged 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 is as follows:
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 temperature of the water 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 is ignited, the external circulation preheating loop starts to operate, the heating of the water is realized, and the cold water cannot flow out from the hot water pipeline 5 when the water is used for the second time, so that the 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 a power-on 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 temperature of the water 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 is ignited, and the internal circulation preheating loop starts to operate, so that hot water flows out of the hot water pipeline 5 during the secondary startup; because the buffer tank 83 is in the gas water heater, and is arranged close to the heat exchanger 2, the gas water heater box has a heat preservation effect on the gas water heater, the waste heat on the heat exchanger 2 can be transmitted to the buffer tank 83 and the hot water pipeline 5 close to the heat exchanger 2, the heat preservation of the water in the internal circulation preheating loop is realized, the problem that the water temperature in the internal circulation preheating loop is too fast reduced, the water pump 82 and the combustor 3 which are caused work continuously is solved, the gas and the electric quantity are saved, and the service life of the water pump is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A 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 assembly (8); the burner (3) is arranged close to the heat exchanger (2) to realize heating of the heat exchanger (2), the controller (7) is electrically connected with the burner (3) to realize control of the burner (3), and the hot water pipeline (5) is arranged on the heat exchanger (2); the preheating assembly (8) is positioned in the gas water heater body (1) and is controlled by the controller (7), and the preheating assembly (8), the cold water pipeline (4), the hot water pipeline (5) and the heat exchanger (2) form an internal circulation preheating loop.
2. The zero-cold-water gas water heater of claim 1, further comprising a water return line (6), the water return line (6) being in communication with the preheating assembly (8).
3. The zero-cold-water gas water heater according to claim 1 or 2, characterized in that 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.
4. The zero-cold-water gas water heater of claim 3, characterized in that the solenoid three-way valve (81) comprises a socket (811), a solenoid (812), a spool (813) and a resilient assembly (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).
5. The zero-cold-water gas water heater of claim 4, wherein the valve core (813) comprises an electromagnetic rod (8131), and a moving rod (8132) fixedly connected with the electromagnetic rod (8131).
6. The zero-cold-water gas water heater of claim 5, wherein the moving rod (8132) is provided with a central water through hole (81321).
7. The zero-cold-water gas water heater as claimed in claim 6, wherein the side wall of the pipe sleeve (811) is provided with a first water through hole (8111), a second water through hole (8112) and a third water through hole (8113); 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 communicated in sequence.
8. The zero-cold-water gas water heater of claim 3, further comprising a temperature measuring assembly (9), wherein the temperature measuring assembly (9) is arranged on the preheating assembly (8) and is used for detecting the temperature of water flowing out of the preheating assembly (8) in real time.
9. The zero-cold-water gas water heater of claim 8, further comprising a water quantity detection assembly (10), wherein the water quantity detection assembly (10) is arranged on the preheating assembly (8) for detecting the water flow quantity flowing out of the preheating assembly (8) in real time.
10. The zero-cold-water gas water heater of claim 7, wherein a sealing ring is arranged 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 |
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| Publication Number | Publication Date |
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| CN111854146A true CN111854146A (en) | 2020-10-30 |
| CN111854146B CN111854146B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910352626.1A Active CN111854146B (en) | 2019-04-29 | 2019-04-29 | Zero cold water gas water heater |
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Citations (7)
| 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 |
| US20040118453A1 (en) * | 2002-12-19 | 2004-06-24 | George Staranchuk | Automatic lock shutoff valve for water systems |
| 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 circulating gas water heater, prewarming circulating 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 |
-
2019
- 2019-04-29 CN CN201910352626.1A patent/CN111854146B/en active Active
Patent Citations (7)
| 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 |
| US20040118453A1 (en) * | 2002-12-19 | 2004-06-24 | George Staranchuk | Automatic lock shutoff valve for water systems |
| 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 circulating gas water heater, prewarming circulating 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 |
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| Publication number | Publication date |
|---|---|
| CN111854146B (en) | 2024-04-19 |
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