CN104776590A - Gas water heater - Google Patents
Gas water heater Download PDFInfo
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- CN104776590A CN104776590A CN201510188908.4A CN201510188908A CN104776590A CN 104776590 A CN104776590 A CN 104776590A CN 201510188908 A CN201510188908 A CN 201510188908A CN 104776590 A CN104776590 A CN 104776590A
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- water
- branch road
- gas heater
- storage cavity
- heat exchanger
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Abstract
The invention discloses a gas water heater. The gas water heater comprises a heat exchanger, a combustor, a controller, a water inlet end and a water outlet end, wherein the water outlet end is connected with the water inlet end, a main pipeline and a bypass pipeline are connected between the water inlet end and the heat exchanger in parallel, a water pump and a first water flow sensor are arranged on the main pipeline, a second water flow sensor is arranged on the bypass pipeline, a water storage tank is arranged between the water outlet end and the heat exchanger and is provided with a water storage cavity and a coil pipe arranged in the water storage cavity, a first branch and a second branch which are arranged in parallel are arranged between the water storage tank and the heat exchanger, and a third branch and a fourth branch which are arranged in parallel are arranged between the water storage tank and the water outlet end. The gas water heater disclosed by the invention is provided with the water pump and the water storage tank in a built-in manner, and the free switchover among a preheating mode, a bathing mode and a heat insulation mode is realized through waterway switching; no cold water can be discharged from the water outlet end, and meanwhile, the phenomenon that water of the water outlet end is sometimes hot and sometimes cold due to multipoint water supplying is avoided.
Description
Technical field
The present invention relates to sanitary bath equipment field, particularly a kind of gas heater.
Background technology
Existing gas heater, due to the design of its pipeline, needs in use first could to release hot water by after the cold water emptying in pipeline, is not only inconvenient to use, also can causes great waste.
Summary of the invention
Main purpose of the present invention is to provide a kind of gas heater, be intended to solve user in use water outlet have the technical problem of cold water and water temperature instability.
For achieving the above object, the present invention proposes a kind of gas heater, comprise heat exchanger, burner, controller, and the water intake end to be connected with described heat exchanger and water side, this water intake end is connected with water source, this water side is used for output hot water, and described water side can be connected with described water intake end by return line;
Main line and bypass line is connected in parallel between described water intake end and described heat exchanger, described main line is provided with water pump and the first water flow sensor, described bypass line is provided with the second water flow sensor, and described water pump, the first water flow sensor, the second water flow sensor and burner are all electrically connected with described controller;
Water tank is provided with between described water side and heat exchanger, described water tank has water storage cavity and is arranged in this water storage cavity to carry out the coil pipe of heat exchange with the water in described water storage cavity, described water tank is provided with the water storage cavity entrance that is communicated with described water storage cavity and water storage cavity exports, and the coil inlet be communicated with described coil pipe and coil outlets;
The first branch road and the second branch road that are arranged in parallel is provided with between described water tank and heat exchanger, the 3rd branch road and the 4th branch road that are arranged in parallel is provided with between described water tank and water side, described 3rd branch road is connected with described water side by outlet pipeline with after the 4th branch circuit parallel connection, described first branch road is connected with water storage cavity entrance, and described 3rd branch road exports with water storage cavity and is connected; Described second branch road is connected with coil inlet, and described 4th branch road is connected with coil outlets.
Preferably, described 3rd branch road is provided with level sensor, the 3rd temp probe and stop valve, described level sensor is for detecting the water level in the water storage cavity of described water tank, described 3rd temp probe is for detecting the water temperature in the water storage cavity of described water tank, and described stop valve is for controlling the break-make of described 3rd branch road.
Preferably, described water intake end and be provided with the first check valve between described main line and the water inlet end of bypass line, described first check valve is from described water intake end to the water inlet end one-way conduction of described main line and bypass line;
Described main line is provided with the second check valve to described heat exchanger conducting, and this second check valve is near the discharge ends of described main line;
Described bypass line is provided with the 3rd check valve to described heat exchanger conducting, and the 3rd check valve is near the discharge ends of described bypass line;
Described first branch road is provided with the 4th check valve to described water tank conducting;
Described second branch road is provided with the 5th check valve to described water tank conducting;
Described 3rd branch road is provided with the 6th check valve to the conducting of described water side;
Described 4th branch road is provided with the 7th check valve to the conducting of described water side.
Preferably, the water inlet end of described main line, the water inlet end of described bypass line and described water intake end are connected by the first triple valve, and described first triple valve and described controller are electrically connected to control described main line, bypass line is communicated with or shutoff with described water intake end.
Preferably, the first temp probe is provided with between described first triple valve and described water intake end.
Preferably, described first branch road, the second branch road are connected by the second triple valve with heat exchanger.
Preferably, described outlet pipeline is provided with the second temp probe.
Preferably, described gas heater has preheating mode, and after described gas heater enters preheating mode, described controller controls described main line and opens, and bypass line is closed; Described starting mode of pump; Described burner is opened; Described controller also controls described first branch road and cuts out, and the second branch road is opened, and the 3rd branch road is closed; Water in described gas heater is entered at coil pipe, the 4th branch road, the outlet pipeline by described main line, heat exchanger, the second branch road, water tank by water intake end, and circulate in the closed circuit of return line formation, until the water temperature entering described water pump reaches the first preset value, described controller controls described first branch road and opens, second branch road is closed, described burner is opened, water filling in described water storage cavity, until when the water in described water storage cavity reaches preset water level, described water pump cuts out, and described burner cuts out.
Preferably, described gas heater has bathroom pattern, and after described gas heater enters bathroom pattern, described controller controls described bypass line and opens, and main line is closed, and described first branch road is opened, and the second branch road is closed, and the 3rd branch road is opened; Described water side is opened.
Preferably, under bathroom pattern, when water side close and water temperature in described water storage cavity lower than the second preset value time, described gas heater enters holding mode, and described controller controls described main line and opens, and bypass line is closed; Described starting mode of pump; Described burner is opened; Described controller also controls described first branch road and cuts out, and described second branch road is opened, and the 3rd branch road is closed; Water in described gas heater is entered at coil pipe, the 4th branch road, the outlet pipeline by described main line, heat exchanger, the second branch road, water tank by water intake end, and circulate, to heat the water in described water storage cavity in the closed circuit of return line formation.
The built-in water pump of gas heater of the present invention and water tank, and by the switching in water route, to realize preheating mode, bathroom pattern, freely the switching of holding mode.Ensure that water side does not have cold water to discharge, it also avoid the phenomenon that the water side water temperature that occurs is sometimes hot and sometimes cold because multiple spot supplies water simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas heater of the present invention;
Fig. 2 is the structural representation of water tank in gas heater of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Be described further with regard to technical scheme of the present invention below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The present invention proposes a kind of gas heater.
See figures.1.and.2, Fig. 1 is the structural representation of gas heater of the present invention; Fig. 2 is the structural representation of water tank in gas heater of the present invention.
In embodiments of the present invention, this gas heater comprise be connected with water source water intake end 11, water side 12 for output hot water, the heat exchanger 70 be connected with water intake end 11 and water side 12, be arranged on burner (not marking in figure) near heat exchanger 70, and for controlling the controller (not shown) of this gas heater.This water side 12 can be connected with water intake end 11 by return line 13.This return line 13 can be arranged in gas heater, also can be arranged on outside gas heater, connects water side 12 and water intake end 11 when installing gas heater.The main line 14 be arranged in parallel between water intake end 11 and heat exchanger 70 and bypass line 15; This main line 14 is provided with water pump 60 and the first water flow sensor 31, and this bypass line is provided with the second water flow sensor 32.This first water flow sensor 31, second water flow sensor 32 and burner are all electrically connected to enable controller according to the work of the measurement result control combustion device of the first water flow sensor 31 and the second water flow sensor 32 with controller.Between water side 12 and heat exchanger 70, be provided with water tank 50, the coil pipe 52 that this water tank 50 has water storage cavity 51 and is arranged in this water storage cavity 51, this coil pipe 52 can carry out heat exchange with the water in water storage cavity 51.This water tank 50 is provided with the water storage cavity entrance 53 that is communicated with water storage cavity 51 and water storage cavity exports 54, and the coil inlet 55 be communicated with coil pipe 52 and coil outlets 56.Between this water tank 50 and heat exchanger 70, be provided with the first branch road 16 and the second branch road 17 be arranged in parallel, between this water tank 50 and water side 12, be provided with the 3rd branch road (not marking in figure) and the 4th branch road 18 that are arranged in parallel.3rd branch road is connected with water side 12 by outlet pipeline 19 with after the 4th branch road 18 parallel connection.This first branch road 16 is connected with water storage cavity entrance 53, and the 3rd branch road and water storage cavity export 54 and be connected; Second branch road 17 is connected with coil inlet 55, and the 4th branch road 18 is connected with coil outlets 56.
This gas heater has preheating mode, bathroom pattern and holding mode, after gas heater enters preheating mode, this controller controls main line 14 and opens, bypass line 15 is closed, water pump 60 starts, and the first branch road 16 is closed, and the second branch road 17 is opened, 3rd branch road close, when the first water flow sensor 31 detected current by after controller control combustion device open; Water in gas heater is entered by main line 14, heat exchanger 70, second branch road 17, the coil pipe 52 of water tank 50, the 4th branch road 18, outlet pipeline 19 by water intake end 11, and circulate in the closed circuit of return line 13 formation, until the water temperature entering water pump 60 reaches the first preset value, this controller controls the first branch road 16 and opens, second branch road 17 is closed, water filling in water storage cavity 51, until after the water in water storage cavity 51 reaches preset water level, control water pump 60 to close, burner cuts out, and completes preheating of water in water storage cavity 51.After gas heater enters bathroom pattern, this controller controls bypass line 15 and opens, main line 14 is closed, first branch road 16 is opened, second branch road 17 is closed, 3rd branch road open, water side 12 is opened, when the second water flow sensor 32 detected current by after controller control combustion device open.The water entered in gas heater by water intake end 11 enters heat exchanger 70 by main line 14 and heats, then successively through the first branch road 16, water storage cavity 51, the 3rd branch road and outlet pipeline 19, finally by water side 12, hot water is sent, thus to user's supplying hot water, wherein, this water side 12 can be gondola water faucet or tap.Under bathroom pattern, when water side 12 close and water temperature in water storage cavity 51 lower than the second preset value time, gas heater enters holding mode, now this controller control main line 14 is opened, and bypass line 15 is closed, and water pump 60 starts, burner is opened, first branch road 16 is closed, and the second branch road 17 is opened, and the 3rd branch road is closed; Water in gas heater is entered by main line 14, heat exchanger 70, second branch road 17, the coil pipe 52 of water tank 50, the 4th branch road 18, outlet pipeline 19 by water intake end 11, and circulate in the closed circuit of return line 13 formation, heated by the water in coil pipe 52 pairs of water storage cavities 51, thus realize the insulation effect of water storage cavity 51.
The built-in water pump 60 of gas heater of the present invention and water tank 50, and by the switching in water route, to realize preheating mode, bathroom pattern, freely the switching of holding mode.Ensure that water side 12 does not have cold water to discharge, it also avoid the phenomenon that water side 12 water temperature that occurs is sometimes hot and sometimes cold because multiple spot water supply simultaneously.
Based on a certain embodiment of the present invention, 3rd branch road also can be provided with level sensor 43, the 3rd temp probe 23 and stop valve 80, this level sensor 43 is for detecting the water level in the water storage cavity 51 of water tank 50,3rd temp probe 23 is for detecting the water temperature in the water storage cavity 51 of water tank 50, and stop valve 80 is for controlling the break-make of the 3rd branch road.
Based on a certain embodiment of the present invention, in order to water flows backwards in the pipeline preventing gas heater, can be provided with the first check valve 91 between water intake end 11 and the water inlet end of main line 14 and bypass line 15, this first check valve 91 is from water intake end 11 to the water inlet end one-way conduction of main line 14 and bypass line 15.
Also can arrange the second check valve 92 of heat exchanger 70 conducting on main line 14, this second check valve 92 is preferably near the discharge ends of main line 14.
3rd check valve the 93, three check valve 93 of heat exchanger 70 conducting also can be set on bypass line 15 preferably near the discharge ends of bypass line 15.
The 4th check valve 94 to water tank 50 conducting also can be set on the first branch road 16.
The 5th check valve 95 to water tank 50 conducting also can be set on the second branch road 17.
The 6th check valve the 96, six check valve 96 preferably close water tank 50 to water side 12 conducting also can be set on the 3rd branch road.
The 7th check valve 97 to water side 12 conducting also can be set on the 4th branch road 18.
In a certain embodiment of the present invention, the water inlet end of this main line 14, the water inlet end of bypass line 15 and water intake end 11 are connected by the first triple valve 41, and this first triple valve 41 and controller are electrically connected to control main line 14, bypass line 15 is communicated with or shutoff with water intake end 11.
Based on a certain embodiment of the present invention, between the first triple valve 41 and water intake end 11, also can be provided with the first temp probe 21, this first temp probe 21 is for measuring the water temperature of main line 14 (water pump 60) or bypass line 15 place.
In a certain embodiment of the present invention, this first branch road 16, second branch road 17 is connected by the second triple valve 42 with heat exchanger 70.This second triple valve 42 and controller are electrically connected to control being communicated with or shutoff of the first branch road 16, second branch road 17 and heat exchanger 70.
Based on a certain embodiment of the present invention, this outlet pipeline 19 also can be provided with the second temp probe 22.This second temp probe 22 is for measuring the water temperature in water lines 19.
In a certain embodiment of the present invention, in order to realize Automatic Control, this first water flow sensor 31 and the second water flow sensor 32 are preferably Hall switch; This first triple valve 41 and/or the second triple valve 42 are preferably electric T-shaped valve; This water pump 60 is preferably electric water pump; This stop valve 80 is preferably electromagnet cut off valve.
Need above-mentioned first triple valve 41, second triple valve 42, water level sensor 43, first temp probe 21, second temp probe 22, the 3rd temp probe 23, first water flow sensor 31, second water flow sensor 32, water pump 60, stop valve 80 are described, and the work of burner can be carried out unifying to control according to the logical relation of above-mentioned different mode by a controller, also can control by multiple controller is point-to-point according to the logical relation of above-mentioned different mode, its operation principle is substantially identical, does not repeat them here.
Should illustrate that the technical scheme of each embodiment of the present invention can be combined with each other; but must be can be embodied as basis with those skilled in the art; when technical scheme combination occur conflicting maybe cannot realize time people should think that the combination of this technical scheme does not exist, also not within the protection domain of application claims.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a gas heater, comprises heat exchanger, burner, controller, and the water intake end be connected with described heat exchanger and water side, this water intake end is connected with water source, and this water side is used for output hot water, and described water side can be connected with described water intake end by return line, it is characterized in that
Main line and bypass line is connected in parallel between described water intake end and described heat exchanger, described main line is provided with water pump and the first water flow sensor, described bypass line is provided with the second water flow sensor, and described water pump, the first water flow sensor, the second water flow sensor and burner are all electrically connected with described controller;
Water tank is provided with between described water side and heat exchanger, described water tank has water storage cavity and is arranged in this water storage cavity to carry out the coil pipe of heat exchange with the water in described water storage cavity, described water tank is provided with the water storage cavity entrance that is communicated with described water storage cavity and water storage cavity exports, and the coil inlet be communicated with described coil pipe and coil outlets;
The first branch road and the second branch road that are arranged in parallel is provided with between described water tank and heat exchanger, the 3rd branch road and the 4th branch road that are arranged in parallel is provided with between described water tank and water side, described 3rd branch road is connected with described water side by outlet pipeline with after the 4th branch circuit parallel connection, described first branch road is connected with water storage cavity entrance, and described 3rd branch road exports with water storage cavity and is connected; Described second branch road is connected with coil inlet, and described 4th branch road is connected with coil outlets.
2. gas heater as claimed in claim 1, it is characterized in that, described 3rd branch road is provided with level sensor, the 3rd temp probe and stop valve, described level sensor is for detecting the water level in the water storage cavity of described water tank, described 3rd temp probe is for detecting the water temperature in the water storage cavity of described water tank, and described stop valve is for controlling the break-make of described 3rd branch road.
3. gas heater as claimed in claim 1, is characterized in that,
Described water intake end and be provided with the first check valve between described main line and the water inlet end of bypass line, described first check valve is from described water intake end to the water inlet end one-way conduction of described main line and bypass line;
Described main line is provided with the second check valve to described heat exchanger conducting, and this second check valve is near the discharge ends of described main line;
Described bypass line is provided with the 3rd check valve to described heat exchanger conducting, and the 3rd check valve is near the discharge ends of described bypass line;
Described first branch road is provided with the 4th check valve to described water tank conducting;
Described second branch road is provided with the 5th check valve to described water tank conducting;
Described 3rd branch road is provided with the 6th check valve to the conducting of described water side;
Described 4th branch road is provided with the 7th check valve to the conducting of described water side.
4. gas heater as claimed in claim 1, it is characterized in that, the water inlet end of described main line, the water inlet end of described bypass line and described water intake end are connected by the first triple valve, and described first triple valve and described controller are electrically connected to control described main line, bypass line is communicated with or shutoff with described water intake end.
5. gas heater as claimed in claim 4, is characterized in that, be provided with the first temp probe between described first triple valve and described water intake end.
6. gas heater as claimed in claim 1, it is characterized in that, described first branch road, the second branch road are connected by the second triple valve with heat exchanger.
7. gas heater as claimed in claim 1, is characterized in that, described outlet pipeline is provided with the second temp probe.
8. the gas heater as described in any one of claim 1 to 7, is characterized in that, described gas heater has preheating mode, and after described gas heater enters preheating mode, described controller controls described main line and opens, and bypass line is closed; Described starting mode of pump; Described burner is opened; Described controller also controls described first branch road and cuts out, and the second branch road is opened, and the 3rd branch road is closed; Water in described gas heater is entered at coil pipe, the 4th branch road, the outlet pipeline by described main line, heat exchanger, the second branch road, water tank by water intake end, and circulate in the closed circuit of return line formation, until the water temperature entering described water pump reaches the first preset value, described controller controls described first branch road and opens, second branch road is closed, described burner is opened, water filling in described water storage cavity, until when the water in described water storage cavity reaches preset water level, described water pump cuts out, and described burner cuts out.
9. gas heater as claimed in claim 1, it is characterized in that, described gas heater has bathroom pattern, after described gas heater enters bathroom pattern, described controller controls described bypass line and opens, and main line is closed, and described first branch road is opened, second branch road is closed, and the 3rd branch road is opened; Described water side is opened.
10. gas heater as claimed in claim 9, is characterized in that, under bathroom pattern, when water side close and water temperature in described water storage cavity lower than the second preset value time, described gas heater enters holding mode, and described controller controls described main line and opens, and bypass line is closed; Described starting mode of pump; Described burner is opened; Described controller also controls described first branch road and cuts out, and described second branch road is opened, and the 3rd branch road is closed; Water in described gas heater is entered at coil pipe, the 4th branch road, the outlet pipeline by described main line, heat exchanger, the second branch road, water tank by water intake end, and circulate, to heat the water in described water storage cavity in the closed circuit of return line formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188908.4A CN104776590B (en) | 2015-04-20 | 2015-04-20 | Gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188908.4A CN104776590B (en) | 2015-04-20 | 2015-04-20 | Gas heater |
Publications (2)
| Publication Number | Publication Date |
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| CN104776590A true CN104776590A (en) | 2015-07-15 |
| CN104776590B CN104776590B (en) | 2017-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510188908.4A Active CN104776590B (en) | 2015-04-20 | 2015-04-20 | Gas heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595062A (en) * | 2016-12-13 | 2017-04-26 | 西华大学 | Cold-water-emptying constant-temperature and isopiestic-pressure hot water control device and control method thereof |
| CN107421102A (en) * | 2017-08-30 | 2017-12-01 | 杭州德意电器股份有限公司 | Rear end water-mixing type gas heater and its control method |
| CN108826704A (en) * | 2018-07-20 | 2018-11-16 | 樱花卫厨（中国）股份有限公司 | The gas heater that bypass pipe inflow can be adjusted |
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| US5233970A (en) * | 1992-07-02 | 1993-08-10 | Harmony Thermal Company, Inc. | Semi-instantaneous water heater with helical heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595062A (en) * | 2016-12-13 | 2017-04-26 | 西华大学 | Cold-water-emptying constant-temperature and isopiestic-pressure hot water control device and control method thereof |
| CN106595062B (en) * | 2016-12-13 | 2019-06-11 | 西华大学 | A kind of constant temperature and pressure hot water control device and its control method emptying cold water |
| CN107421102A (en) * | 2017-08-30 | 2017-12-01 | 杭州德意电器股份有限公司 | Rear end water-mixing type gas heater and its control method |
| CN107421102B (en) * | 2017-08-30 | 2022-09-16 | 杭州德意电器股份有限公司 | Rear-end water mixing type gas water heater and control method thereof |
| CN108826704A (en) * | 2018-07-20 | 2018-11-16 | 樱花卫厨（中国）股份有限公司 | The gas heater that bypass pipe inflow can be adjusted |
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| CN104776590B (en) | 2017-12-19 |
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Effective date of registration: 20221223 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East Wuhu economic and Technological Development Zone, Wuhu, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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