CN109000377B - Constant-temperature gas water heater and constant-temperature control method of gas water heater - Google Patents
Constant-temperature gas water heater and constant-temperature control method of gas water heater Download PDFInfo
- Publication number
- CN109000377B CN109000377B CN201810904156.0A CN201810904156A CN109000377B CN 109000377 B CN109000377 B CN 109000377B CN 201810904156 A CN201810904156 A CN 201810904156A CN 109000377 B CN109000377 B CN 109000377B
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- water
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- proportional valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 203
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims description 4
- 239000008400 supply water Substances 0.000 claims description 4
- 238000003287 bathing Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 29
- 239000002737 fuel gas Substances 0.000 description 3
- 208000033999 Device damage Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a constant temperature gas water heater, comprising: the device comprises a main controller, a heat exchanger, and a water inlet pipe and a water outlet pipe which are connected with the heat exchanger; the water storage device is characterized in that a first branch and a second branch which are connected in parallel are arranged on the water inlet pipe, a water storage tank and a first water proportional valve are arranged on the first branch, and an electric heater and a temperature sensor are arranged in the water storage tank; a second water proportional valve is arranged on the second branch; the first water proportional valve, the second water proportional valve, the electric heater and the temperature sensor are all connected with the main controller. The invention can avoid the problem that a section of cold water appears after the water is turned off and boiled again in the process of using the gas water heater by a user, can also avoid the problem that the water outlet temperature is too high possibly caused by introducing the heating device, can effectively reduce the fluctuation range of the water temperature when water is stopped, and improves the bathing experience of the user. The invention also provides a constant temperature control method of the gas water heater.
Description
Technical Field
The invention relates to the technical field of fluid heaters, in particular to a constant-temperature gas water heater and a constant-temperature control method of the gas water heater.
Background
The gas water heater is a device which uses gas as energy source and heats water by the heat generated by combustion of the gas so that the water temperature reaches the requirements of life, heating and the like. In the use process of the gas quick water heater, if boiled water is boiled after water is shut off, a section of cold water is caused, and user experience, especially bath experience, is affected. Although the industry proposes to solve the problem by adding a water storage tank or the like, the effect is not ideal, and the water outlet temperature is unstable, and even the water temperature cannot reach the set temperature for a long time.
Disclosure of Invention
The invention aims to provide a constant temperature gas water heater without secondary start-up cold water and with stable water outlet temperature.
In order to achieve the above purpose, the invention adopts the following technical scheme.
A constant temperature gas water heater comprising: the device comprises a main controller, a heat exchanger, and a water inlet pipe and a water outlet pipe which are connected with the heat exchanger; the water storage device is characterized in that a first branch and a second branch which are connected in parallel are arranged on the water inlet pipe, a water storage tank and a first water proportional valve are arranged on the first branch, and an electric heater and a temperature sensor are arranged in the water storage tank; a second water proportional valve is arranged on the second branch; the first water proportional valve, the second water proportional valve, the electric heater and the temperature sensor are all connected with the main controller.
As a further explanation of the above-mentioned scheme, an operation display is connected to the main controller, and a temperature setting key and a flow rate setting key are provided on the operation display.
As a further explanation of the above-mentioned scheme, a burner for providing heat to the heat exchanger is provided corresponding to the heat exchanger, and a fuel gas proportional valve is connected to the burner; a water flow sensor and a water inlet temperature sensor are arranged on the water inlet pipe; the gas proportional valve, the water flow sensor and the water inlet temperature sensor are all connected with the main controller, and the main controller controls the opening of the gas proportional valve according to signals fed back by the operation display, the water flow sensor and the water inlet temperature sensor.
As a further explanation of the scheme, a water outlet temperature sensor connected with the main controller is arranged on the water outlet pipe.
As a further explanation of the above, a direct current fan is connected to the burner.
As a further explanation of the above, the burner is located below the heat exchanger, and a smoke outlet is provided above the heat exchanger.
The invention also provides a constant temperature control method of the gas water heater, which is characterized in that the first branch and the second branch which are connected in parallel are utilized to supply water to the heat exchanger, and a water storage tank with an electric heater and a temperature sensor is arranged on the first branch; when a user starts the gas water heater, the first branch water supply is used by default, and the electric heater does not start a heating function; after the user turns off the water, the electric heater starts a heating function, and the water temperature in the water storage tank is heated to the temperature set by the user and then stops working; when the user boiled water again, there is an ignition time, before ignition is successful, the first branch water supply is utilized, and after ignition is successful, the second branch water supply is automatically switched.
By further describing the scheme, when the user boiled water again, if the hot water in the water storage tank is used completely, the first branch is continuously supplied with water.
As a further explanation of the above scheme, the water temperature in the water storage tank is heated to the user set temperature only once after each time the user turns off the water.
The beneficial effects of the invention are as follows:
1. through setting up two branches that can heat and can not heat on the inlet tube, can avoid the user to use gas heater in-process, close the problem that the water appears one section cold water after boiling again, also can avoid introducing the too high problem of play water temperature that heating device probably leads to, can effectively reduce the fluctuation range of water temperature of cutting off water, promote user's bathing experience.
2. When the user boiled water again, if the hot water in the water storage tank is used completely, the first branch is continuously supplied with water, so that instability and device damage caused by frequent waterway switching can be avoided.
3. After the user turns off water each time, the water temperature in the water storage tank is heated to the set temperature of the user only once, so that unnecessary energy consumption can be saved.
Drawings
Fig. 1 is a schematic diagram of a constant temperature gas water heater according to the present invention.
FIG. 2 shows a working flow chart of the constant temperature gas water heater provided by the invention.
Reference numerals illustrate:
1: main controller, 2: heat exchanger, 3: inlet tube, 4: and a water outlet pipe, 5: first branch, 6: second branch, 7: water storage tank, 8: first water proportional valve, 9: an electric heater, 10: temperature sensor, 11: second water proportional valve, 12: burner, 13: gas proportional valve, 14: water flow sensor, 15: inlet water temperature sensor, 16: outlet water temperature sensor, 17: direct current fan, 18: and a smoke outlet.
Detailed Description
In the description of the present invention, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present invention that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the invention, "at least" means one or more, unless clearly specifically defined otherwise.
In the present invention, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The following description of the specific embodiments of the present invention is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present invention are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Example 1
As shown in fig. 1, a constant temperature gas water heater includes: a main controller 1, a heat exchanger 2, a water inlet pipe 3 and a water outlet pipe 4 connected with the heat exchanger 2; the water storage device is characterized in that a first branch 5 and a second branch 6 which are connected in parallel are arranged on the water inlet pipe 3, a water storage tank 7 and a first water proportional valve 8 are arranged on the first branch 5, and an electric heater 9 and a temperature sensor 10 are arranged in the water storage tank 7; a second water proportional valve 11 is arranged on the second branch 6; the first water proportional valve 8, the second water proportional valve 11, the electric heater 9 and the temperature sensor 10 are all connected with the main controller 1; when a user starts the gas water heater, the first branch 5 is used for supplying water by default, and the electric heater 9 does not start a heating function; after the user turns off the water, the electric heater 9 starts a heating function, and the water temperature in the water storage tank 7 is heated to the temperature set by the user and then stops working; when the user boiled water again, there is an ignition time, before ignition is successful, the first branch 5 is utilized to supply water, and after ignition is successful, the second branch 6 is automatically switched to supply water.
An operation display is connected to the main controller 1, and a temperature setting key and a flow setting key are arranged on the operation display, so that a user can conveniently set the temperature and the flow.
A burner 12 for providing heat to the heat exchanger 2 is arranged corresponding to the heat exchanger, and a fuel gas proportional valve 13 is connected to the burner 12; a water flow sensor 14 and a water inlet temperature sensor 15 are arranged on the water inlet pipe 3; the gas proportional valve 13, the water flow sensor 14 and the water inlet temperature sensor 15 are all connected with the main controller 1, and the main controller 1 controls the opening of the gas proportional valve 13 according to the set temperature fed back by the operation display, the water flow fed back by the water flow sensor and the water inlet temperature fed back by the water inlet temperature sensor respectively and the water inlet temperature.
Further, the water outlet pipe 4 is provided with a water outlet temperature sensor 16 connected with the main controller 1, and the main controller 1 dynamically adjusts the opening of the fuel gas proportional valve 13 according to a signal fed back by the water outlet temperature sensor 16 so as to ensure that the actual water outlet temperature is consistent with the set temperature.
Further, a dc fan 17 is connected to the burner 12. The burner 12 is positioned below the heat exchanger 2, and a smoke outlet 18 is arranged above the heat exchanger 2.
According to the constant-temperature gas water heater, through the two branches which can be heated and cannot be heated arranged on the water inlet pipe, the problem that a section of cold water appears after water is closed and boiled in the process of using the gas water heater by a user can be avoided, the problem that the temperature of water outlet is too high possibly caused by introducing a heating device can be avoided, the fluctuation range of the water temperature of water cut off can be effectively reduced, and the bathing experience of the user is improved.
Example two
As shown in fig. 2, the present embodiment provides a method for controlling the temperature of a gas water heater, which can be implemented by using the constant temperature gas water heater according to the first embodiment. The specific principle of the constant temperature control method is as follows: supplying water to the heat exchanger by using a first branch and a second branch which are connected in parallel, and arranging a water storage tank with an electric heater and a temperature sensor on the first branch; when a user starts the gas water heater, the first branch water supply is used by default, and the electric heater does not start a heating function; after the user turns off the water, the electric heater starts a heating function, and the water temperature in the water storage tank is heated to the temperature set by the user and then stops working; when the user boiled water again, there is an ignition time, before ignition is successful, the first branch water supply is utilized, and after ignition is successful, the second branch water supply is automatically switched.
When the user boiled water again, if the hot water in the water storage tank is used, the first branch is continuously supplied with water, so that instability and device damage caused by frequent waterway switching are avoided.
Further, after the user turns off the water each time, the water temperature in the water storage tank is heated to the set temperature of the user only once, so that unnecessary energy consumption is saved.
According to the constant temperature control method for the gas water heater, the problem that a section of cold water appears after water is turned off and boiled in the process of using the gas water heater by a user is avoided, the problem that the water outlet temperature is too high possibly caused by introducing a heating device is avoided, the fluctuation range of the water temperature when water is turned off is effectively reduced, and the bathing experience of the user is improved.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, but is intended to cover modifications and alternatives falling within the spirit and scope of the invention as defined by the appended claims and their equivalents. The portions of the detailed description that are not presented are all prior art or common general knowledge.
Claims (8)
1. A constant temperature gas water heater comprising: the device comprises a main controller, a heat exchanger, and a water inlet pipe and a water outlet pipe which are connected with the heat exchanger; the water storage device is characterized in that a first branch and a second branch which are connected in parallel are arranged on the water inlet pipe, a water storage tank and a first water proportional valve are arranged on the first branch, and an electric heater and a temperature sensor are arranged in the water storage tank; a second water proportional valve is arranged on the second branch; the first water proportional valve, the second water proportional valve, the electric heater and the temperature sensor are all connected with the main controller;
the control method of the constant temperature gas water heater comprises the following steps: supplying water to the heat exchanger by using a first branch and a second branch which are connected in parallel, and arranging a water storage tank with an electric heater and a temperature sensor on the first branch; when a user starts the gas water heater, the first branch water supply is used by default, and the electric heater does not start a heating function; after the user turns off the water, the electric heater starts a heating function, and the water temperature in the water storage tank is heated to the temperature set by the user and then stops working; when the user boiled water again, there is an ignition time, before ignition is successful, the first branch water supply is utilized, and after ignition is successful, the second branch water supply is automatically switched.
2. The constant temperature gas water heater according to claim 1, wherein an operation display is connected to the main controller, and a temperature setting key and a flow setting key are provided on the operation display.
3. A thermostatic gas water heater according to claim 2 wherein a burner is provided for providing heat to the heat exchanger, and a gas proportional valve is connected to the burner; a water flow sensor and a water inlet temperature sensor are arranged on the water inlet pipe; the gas proportional valve, the water flow sensor and the water inlet temperature sensor are all connected with the main controller, and the main controller controls the opening of the gas proportional valve according to signals fed back by the operation display, the water flow sensor and the water inlet temperature sensor.
4. A thermostatic gas water heater according to claim 3 wherein a water outlet temperature sensor is provided on said water outlet tube and connected to said main controller.
5. A thermostatic gas water heater according to claim 3 wherein a direct current fan is connected to said burner.
6. A thermostatic gas water heater according to claim 3 wherein said burner is located below said heat exchanger with a smoke outlet located above said heat exchanger.
7. A thermostatic gas water heater according to claim 1 wherein when the user is boiled again, if the hot water in the water reservoir is used, the first branch is continued to supply water.
8. A thermostatic gas water heater according to claim 1 wherein the temperature of water in said water storage tank is heated to a user set temperature only once each time a user turns off water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904156.0A CN109000377B (en) | 2018-08-09 | 2018-08-09 | Constant-temperature gas water heater and constant-temperature control method of gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904156.0A CN109000377B (en) | 2018-08-09 | 2018-08-09 | Constant-temperature gas water heater and constant-temperature control method of gas water heater |
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| Publication Number | Publication Date |
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| CN109000377A CN109000377A (en) | 2018-12-14 |
| CN109000377B true CN109000377B (en) | 2023-11-14 |
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| CN201810904156.0A Active CN109000377B (en) | 2018-08-09 | 2018-08-09 | Constant-temperature gas water heater and constant-temperature control method of gas water heater |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121274B (en) * | 2020-01-09 | 2024-05-10 | 杭州德意智家股份有限公司 | Gas water heater with purification function and purification method thereof |
| CN111457597B (en) * | 2020-05-18 | 2024-03-22 | 珠海格力电器股份有限公司 | Water supply device, water supply system, control method of water supply system and water heater |
| CN111561777A (en) * | 2020-05-22 | 2020-08-21 | 珠海格力电器股份有限公司 | Water heater system and control method thereof |
| CN112032997B (en) * | 2020-07-22 | 2022-04-22 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method thereof |
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| JP2001324217A (en) * | 2000-05-16 | 2001-11-22 | Tokyo Gas Co Ltd | Gas water heater |
| CN202792487U (en) * | 2012-10-09 | 2013-03-13 | 阿高龙热 | Preheating gas water heater |
| CN104121698A (en) * | 2014-07-03 | 2014-10-29 | 孙冬梅 | Constant-flow type electromagnetic auxiliary heating device of water heater |
| CN104776589A (en) * | 2015-04-20 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Water control device and gas water heater |
| CN204535090U (en) * | 2015-04-23 | 2015-08-05 | 重庆大学 | A kind of air friction drag pre-heating system of photo-thermal comprehensive utilization |
| CN104913508A (en) * | 2015-06-09 | 2015-09-16 | 广东万家乐燃气具有限公司 | Thermostat of gas water heater and constant-temperature water drainage control method |
| CN107576055A (en) * | 2017-08-25 | 2018-01-12 | 华帝股份有限公司 | A kind of zero cold water water heater |
-
2018
- 2018-08-09 CN CN201810904156.0A patent/CN109000377B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001324217A (en) * | 2000-05-16 | 2001-11-22 | Tokyo Gas Co Ltd | Gas water heater |
| CN202792487U (en) * | 2012-10-09 | 2013-03-13 | 阿高龙热 | Preheating gas water heater |
| CN104121698A (en) * | 2014-07-03 | 2014-10-29 | 孙冬梅 | Constant-flow type electromagnetic auxiliary heating device of water heater |
| CN104776589A (en) * | 2015-04-20 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Water control device and gas water heater |
| CN204535090U (en) * | 2015-04-23 | 2015-08-05 | 重庆大学 | A kind of air friction drag pre-heating system of photo-thermal comprehensive utilization |
| CN104913508A (en) * | 2015-06-09 | 2015-09-16 | 广东万家乐燃气具有限公司 | Thermostat of gas water heater and constant-temperature water drainage control method |
| CN107576055A (en) * | 2017-08-25 | 2018-01-12 | 华帝股份有限公司 | A kind of zero cold water water heater |
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| CN109000377A (en) | 2018-12-14 |
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