CN110671811B - Gas water heater and control method thereof - Google Patents
Gas water heater and control method thereof Download PDFInfo
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- CN110671811B CN110671811B CN201911000586.0A CN201911000586A CN110671811B CN 110671811 B CN110671811 B CN 110671811B CN 201911000586 A CN201911000586 A CN 201911000586A CN 110671811 B CN110671811 B CN 110671811B
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- heat exchanger
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- combustion chamber
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Classifications
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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
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
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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
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas channels
- F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
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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
- F24H9/18—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
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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
- F24H9/20—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)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a gas water heater and a control method thereof, wherein the gas water heater comprises a combustion chamber; the heat exchange area comprises a heating water heat exchanger and a domestic water heat exchanger; the baffle is in a first state between the combustion chamber and the heat exchange area, wherein the first state is that the baffle is positioned below the heating water heat exchanger and the domestic water heat exchanger and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger and part of flue gas channels between the combustion chamber and the domestic water heat exchanger. When the baffle is in the first state, the baffle can simultaneously block part of the flue gas channel between the combustion chamber and the heating water heat exchanger and part of the flue gas channel between the combustion chamber and the domestic water heat exchanger, so that high-temperature flue gas in the combustion chamber can simultaneously enter the heating water heat exchanger and the domestic water heat exchanger through the part which is not blocked by the baffle, and at the moment, the gas water heater can simultaneously provide heating water and domestic water.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a gas water heater and a control method thereof.
Background
At present, most of gas heating water heaters in industry adopt a main heat exchanger to exchange heat of heating water, when domestic hot water is used, heat of a small heating cycle is used for exchanging heat with the domestic water in a plate heat exchanger, namely when a user uses the domestic hot water, the heating function cannot be used, and only after the domestic water stops, the heating function can be continuously used, but at the moment, the room temperature may be reduced, and the heating requirement of the user in winter when the air temperature is low cannot be met.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that a heating user and domestic water cannot be used simultaneously when the gas water heater is utilized in the prior art, thereby providing the gas water heater and the control method thereof.
According to a first aspect, an embodiment of the present invention provides a gas water heater, including:
a combustion chamber;
the heat exchange area comprises a heating water heat exchanger and a domestic water heat exchanger;
the baffle is in a first state between the combustion chamber and the heat exchange area, wherein the first state is that the baffle is positioned below the heating water heat exchanger and the domestic water heat exchanger, and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger and part of flue gas channels between the combustion chamber and the domestic water heat exchanger.
The gas water heater provided by the embodiment of the invention comprises a combustion chamber, a heat exchange area and a baffle plate, wherein the heat exchange area comprises a heating water heat exchanger and a domestic water heat exchanger, and the baffle plate is in a first state between the combustion chamber and the heat exchange area, wherein the first state is that the baffle plate is positioned below the heating water heat exchanger and the domestic water heat exchanger, and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger and part of flue gas channels between the combustion chamber and the domestic water heat exchanger. Because the baffle can block part of the flue gas channel between the combustion chamber and the heating water heat exchanger and part of the flue gas channel between the combustion chamber and the domestic water heat exchanger, high-temperature flue gas in the combustion chamber can enter the heating water heat exchanger and the domestic water heat exchanger simultaneously through the part which is not blocked by the baffle, and at the moment, the gas water heater can provide heating water and domestic water simultaneously.
With reference to the first aspect, in a first implementation manner of the first aspect, the gas water heater according to an embodiment of the present invention further includes: the baffle is in a second state, wherein the second state is that the baffle is positioned below the domestic water heat exchanger and blocks a flue gas channel between the combustion chamber and the domestic water heat exchanger. When the baffle is in the second state, the gas water heater can provide heating water.
With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect, the gas water heater according to the embodiment of the present invention further includes: the baffle is in a third state, wherein the third state is that the baffle is positioned below the heating water heat exchanger and blocks a flue gas channel between the combustion chamber and the heating water heat exchanger. When the baffle is in the third state, the gas water heater can provide domestic water.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the gas water heater according to the embodiment of the present invention further includes a driving motor, where the driving motor is connected to the baffle, and is configured to drive the baffle to switch among the first state, the second state, and the third state. Therefore, the gas water heater can be switched among three states of supplying heating water, supplying domestic water and simultaneously supplying heating water and domestic water.
With reference to the first aspect, in a fourth implementation manner of the first aspect, the gas water heater according to the embodiment of the present invention further includes a flue partition, where the flue partition is disposed between the heating water heat exchanger and the domestic water heat exchanger. The heating water heat exchanger and the domestic water heat exchanger can be separated through the flue partition board, and when the baffle is in the first state, the second state or the third state, the combined use of the baffle and the flue partition board can prevent the gas channeling of high-temperature flue gas between the heating water heat exchanger and the domestic water heat exchanger, so that heat waste is caused.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the gas water heater according to the embodiment of the present invention further includes a flow sensor, where the flow sensor is disposed on the domestic water inlet channel. According to the embodiment of the invention, the flow sensor is arranged on the domestic water inlet channel, so that the domestic water mode is started only when the controller receives the water flow signal of the flow sensor, and the dry burning of the domestic water heater before domestic water is not connected is effectively prevented.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the burner in the combustion chamber of the gas water heater according to the embodiment of the present invention includes a heating water fire row group and a living water fire row group. According to the embodiment of the invention, by arranging the heating water and fire row group and the living water and fire row group, when the gas water heater supplies heating water, living water and heating water and living water simultaneously, different fire row groups are adopted for combustion, so that the temperature regulation is convenient.
With reference to the sixth embodiment of the first aspect, in a seventh embodiment of the first aspect, the gas water heater according to the embodiment of the present invention is provided with a first gas proportional valve on a gas channel of the heating water fire grate, and a second gas proportional valve on a gas channel of the living water fire grate. According to the embodiment of the invention, when the gas water heater supplies heating water, domestic water and both heating water and domestic water, power adjustment of different gas amounts can be respectively carried out according to different heat requirements of the three states, so that temperature adjustment of a wider area is satisfied.
With reference to the seventh implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the gas water heater according to an embodiment of the present invention further includes a controller, where the controller is connected to the flow sensor, the first gas proportional valve, the second gas proportional valve, and the driving motor.
With reference to the sixth implementation manner of the first aspect, in a ninth implementation manner of the first aspect, the ignition needle and the fire detection needle on the burner are close to the heating water fire row group.
According to a second aspect, an embodiment of the present invention provides a control method for a gas water heater, including the steps of: acquiring a first water instruction; driving a baffle plate to be in a working state corresponding to the first water instruction according to the first water instruction, and igniting part/all fire row groups on the burner; the baffle defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater.
According to the control method of the gas water heater, the baffle plate can be driven to be in the working state corresponding to the first water instruction according to the acquired first water instruction, and the burner is ignited to burn, so that high-temperature flue gas in the combustion chamber of the gas water heater enters different heat exchangers through the flue gas channel defined by the baffle plate, and different water requirements are met.
With reference to the second aspect, in a first implementation manner of the second aspect, the driving baffle is in an operating state corresponding to the first water command, including: when the first water instruction is a heating water instruction, driving the baffle to be in a second state, wherein the second state is that the baffle is positioned below the domestic water heat exchanger, and a flue gas channel between the combustion chamber and the domestic water heat exchanger is blocked; when the first water instruction is a domestic water instruction, the baffle is driven to be in a third state, wherein the third state is that the baffle is positioned below the heating water heat exchanger and blocks a flue gas channel between the combustion chamber and the heating water heat exchanger.
With reference to the first embodiment of the second aspect, in a second embodiment of the second aspect, the partial fire grate assembly on the ignition burner includes: when the first water instruction is a heating water instruction, igniting a heating water fire row group on the burner; and when the first water instruction is a domestic water instruction, igniting the domestic water fire grate on the burner.
With reference to the second aspect, in a third implementation manner of the second aspect, after the driving baffle is in an operating state corresponding to the first water command and a part/all of fire row groups on the burner are ignited, the method further includes: acquiring a second water use instruction; and driving the baffle plate to be in a first state according to the second water use instruction, wherein the first state is that the baffle plate is positioned below the heating water heat exchanger and the domestic water heat exchanger, and simultaneously, the part of flue gas channels between the combustion chamber and the heating water heat exchanger and the part of flue gas channels between the combustion chamber and the domestic water heat exchanger are blocked. Therefore, the baffle plate can be driven to be in a first state according to the acquired second water instruction, so that high-temperature smoke in the combustion chamber can enter the heating water heat exchanger and the domestic water heat exchanger simultaneously through the baffle plate without blocking the smoke channel, and the gas water heater can provide heating water and domestic water simultaneously.
With reference to the third embodiment of the second aspect, in a fourth embodiment of the second aspect, when the partial fire row group on the burner is ignited according to the first water command, after driving the baffle to be in the first state according to the second water command, the method further includes: and igniting the rest fire row groups on the burner.
With reference to the second embodiment or the fourth embodiment of the second aspect, in a fifth embodiment of the second aspect, after igniting a part/all of the fire row groups on the burner or igniting the remaining fire row groups on the burner, the method further comprises: receiving a temperature control instruction; and adjusting the first fuel gas proportional valve and/or the second fuel gas proportional valve according to the temperature control instruction.
According to a third aspect, a control device for a gas water heater provided by an embodiment of the present invention includes:
the instruction acquisition module is used for acquiring a first water instruction by a user;
the control module is used for driving the baffle to be in a working state corresponding to the first water instruction according to the first water instruction and igniting part/all of fire row groups on the burner; the baffle defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to execute the control method of the gas water heater according to the second aspect or any one of the embodiments of the second aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a gas water heater according to embodiment 1 of the present invention;
FIG. 2 is a schematic flow chart of a control method of a gas water heater according to embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a control device for a gas water heater according to embodiment 3 of the present invention.
Reference numerals illustrate:
1. a centrifugal fan; 2. a flue separator; 3. a heating water heat exchanger; 4. a baffle; 5. a driving motor; 6. a temperature limiter; 7. an ignition needle; 8. a fire detecting needle; 9. heating the water outlet temperature sensing bag; 10. a burner; 11. a first gas proportional valve; 12. a living water temperature sensing bag; 13. a wind pressure switch; 14. a domestic water heat exchanger; 15. an expansion tank; 16. a second fuel gas proportional valve; 17. a water pump; 18. a flow sensor.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The gas water heater as shown in fig. 1 includes a combustion chamber; a heat exchange area comprising a heating water heat exchanger 3 and a domestic water heat exchanger 14; the baffle plate 4 is in a first state between the combustion chamber and the heat exchange area, wherein the first state is that the baffle plate 4 is positioned below the heating water heat exchanger 3 and the domestic water heat exchanger 14 and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger 3 and part of flue gas channels between the combustion chamber and the domestic water heat exchanger 14.
In embodiment 1 of the present invention, the material, length, thickness, etc. of the baffle plate 4 are not limited, as long as the partial flue gas passage between the combustion chamber and the heating water heat exchanger 3 and the partial flue gas passage between the combustion chamber and the domestic water heat exchanger 14 can be simultaneously blocked. As an example, as shown in fig. 1, the heating water heat exchanger 3 and the domestic water heat exchanger 14 are arranged side by side above the combustion chamber, and the length of the baffle 4 is smaller than the sum of the lengths of the heating water heat exchanger 3 and the domestic water heat exchanger 14. The first state of the baffle 4 is that the baffle 4 is located at an intermediate position below the heating water heat exchanger 3 and the domestic water heat exchanger 14, i.e. a G position in the figure, so that a part of the flue gas channel between the combustion chamber and the heating water heat exchanger 3 and a part of the flue gas channel between the combustion chamber and the domestic water heat exchanger 14 can be blocked at the same time.
The gas water heater can simultaneously block part of the flue gas channel between the combustion chamber and the heating water heat exchanger 3 and part of the flue gas channel between the combustion chamber and the domestic water heat exchanger 14 by the baffle plate 4, so that high-temperature flue gas in the combustion chamber can simultaneously enter the heating water heat exchanger 3 and the domestic water heat exchanger 14 through the part which is not blocked by the baffle plate 4, and at the moment, the gas water heater can simultaneously provide heating water and domestic water, wherein the domestic water comprises bathroom water.
Further, as a specific embodiment, in the gas water heater of embodiment 1 of the present invention, the baffle 4 may be in a second state, where the second state is that the baffle 4 is located below the domestic water heat exchanger 14, and blocks a flue gas channel between the combustion chamber and the domestic water heat exchanger 14. For example, as shown in fig. 1, the barrier 4 is in the second state, i.e., the barrier 4 is in the H position, at which time heating water may be supplied.
Further, as a specific embodiment, in the gas water heater according to embodiment 1 of the present invention, the baffle plate 4 may be in a third state, where the baffle plate 4 is located below the heating water heat exchanger 3, so as to block a flue gas channel between the combustion chamber and the heating water heat exchanger 3. For example, as shown in fig. 1, the baffle 4 is in the second state, i.e. the baffle 4 is in the E position, where domestic water, e.g. toilet water, may be provided.
As a specific embodiment, the gas water heater of embodiment 1 of the present invention further includes a driving motor 5, where the driving motor 5 is connected to the baffle 4, and is used to drive the baffle 4 to switch among the first state, the second state and the third state. Thus, the gas water heater can be switched between three states of supplying heating water, supplying domestic water, and simultaneously supplying heating water and domestic water under the driving of the driving motor 5, and as shown in fig. 1, the driving motor 5 may be disposed at one end of the baffle plate 4.
As a specific embodiment, the gas water heater of example 1 of the present invention further includes a flue separator 2, and the flue separator 2 is disposed between the heating water heat exchanger 3 and the domestic water heat exchanger 14. The heating water heat exchanger 3 and the domestic water heat exchanger 14 can be separated by the flue partition plate 2, and when the baffle plate 4 is in the first state, the second state or the third state, the combined use of the baffle plate 4 and the flue partition plate 2 can prevent the high-temperature flue gas from blowby between the heating water heat exchanger 3 and the domestic water heat exchanger 14, so that heat waste is caused.
As a specific embodiment, the gas water heater of example 1 of the present invention further includes a flow sensor 18, and the flow sensor 18 is disposed on the domestic water inlet channel. According to the embodiment of the invention, the flow sensor 18 is arranged on the domestic water inlet channel, so that the domestic water mode is started only when the controller receives the water flow signal of the flow sensor 18, and the dry burning of the domestic water heater before domestic water is not connected can be effectively prevented.
As a specific embodiment, the burner 10 in the combustion chamber of the gas water heater of example 1 of the present invention includes a heating water fire row group and a living water fire row group. According to the embodiment of the invention, by arranging the heating water and fire row group and the living water and fire row group, when the gas water heater supplies heating water, living water and heating water and living water simultaneously, different fire row groups are adopted for combustion, so that the temperature regulation is convenient.
As a specific embodiment, the gas water heater of example 1 of the present invention is further provided with a first gas proportional valve 11 and a second gas proportional valve 16. Specifically, a first fuel gas proportional valve 11 is arranged on a fuel gas channel of the heating water and fire row group, and a second fuel gas proportional valve 16 is arranged on a fuel gas channel of the living water and fire row group. According to the embodiment of the invention, when the gas water heater supplies heating water, domestic water and both heating water and domestic water, power adjustment of different gas amounts can be respectively carried out according to different heat requirements of the three states, so that temperature adjustment of a wider area is satisfied.
As a specific embodiment, the gas water heater of embodiment 1 of the present invention further includes a controller connected to the flow sensor 18, the first gas proportional valve 11, the second gas proportional valve 16, and the driving motor 5.
As a specific embodiment, in the gas water heater of example 1 of the present invention, the ignition needle 7 and the fire detection needle 8 on the burner 10 are close to the heating water fire row group. Because the gas water heater is commonly used for providing heating water or providing domestic water on the basis of providing heating water, the ignition needle 7 and the fire detection needle 8 are arranged close to the heating water fire row group, so that the heating water fire row group can be more conveniently ignited.
As shown in fig. 1, a represents a heating hot water outlet, b represents a bathroom hot water outlet, c represents a fuel gas inlet, d represents a bathroom cold water outlet, and e represents a heating return water inlet. The gas water heater of the embodiment 1 of the invention also comprises a centrifugal fan 1, a temperature limiter 6, a heating water outlet temperature sensing bulb 9, a living water outlet temperature sensing bulb 12, a wind pressure switch 13, an expansion water tank 15, a water pump 17 and the like, wherein the functions of the components are the same as those of the components in the existing gas water heater, for example, the centrifugal fan 1 is used for discharging combustion waste gas generated in the combustion process to the outside of a unit; the water pump 17 is used for providing power for water circulation of the heating system, and will not be described herein.
Example 2
The embodiment 2 of the invention provides a control method of a gas water heater, which is applied to the gas water heater of the embodiment 1 of the invention. Fig. 2 is a schematic flow chart of a control method of a gas water heater according to embodiment 2 of the present invention, and as shown in fig. 2, the control method of the gas water heater according to embodiment 2 of the present invention includes the following steps:
s201: a first water instruction is obtained.
Specifically, the first water instruction includes a heating water instruction or a domestic water instruction. In general, the gas water heater is started up by default to be in a heating mode, namely heating water is provided.
S202: according to the first water command, driving the baffle plate 4 to be in a working state corresponding to the first water command, and igniting part/all of fire row groups on the burner 10; wherein the baffle plate 4 defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater.
Specifically, when the first water instruction is a heating water instruction, the baffle 4 is driven to be in a second state, wherein the second state is that the baffle 4 is located below the domestic water heat exchanger 14, so as to block a flue gas channel between the combustion chamber and the domestic water heat exchanger 14, that is, the driving motor 5 drives the flue baffle 4 to move to an H position, and high-temperature flue gas can only enter from an E region and fully exchange heat with the heating water heat exchanger 3. At this time, the H area is blocked by the flue baffle 4, so that the flue gas cannot enter the H area and cannot exchange heat with water in the bathroom water heat exchanger, and the whole machine only shows a heating function. When the first water instruction is a domestic water instruction, the baffle 4 is driven to be in a third state, wherein the third state is that the baffle 4 is positioned below the heating water heat exchanger 3 to block a flue gas channel between the combustion chamber and the heating water heat exchanger 3, and the details are not repeated.
Specifically, when the first water command is a heating water command, the heating water fire row group on the burner 10 is ignited, and further, the on-off and the air inflow of the heating water gas branch can be adjusted by adjusting the first gas proportional valve 11. When the first water instruction is a domestic water instruction, the domestic water fire grate on the burner 10 is ignited, and further, the on-off and the air inflow of the domestic water gas branch can be adjusted by adjusting the second gas proportional valve 16.
Further, after the driving damper 4 is in the operation state corresponding to the first water command and the partial/full fire row group on the burner 10 is ignited, it further comprises: and acquiring a second water use instruction, and driving the baffle plate 4 to be in a first state according to the second water use instruction, wherein the first state is that the baffle plate 4 is positioned below the heating water heat exchanger 3 and the domestic water heat exchanger 14, and simultaneously, blocking part of flue gas channels between the combustion chamber and the heating water heat exchanger 3 and part of flue gas channels between the combustion chamber and the domestic water heat exchanger 14.
The second water usage instruction is different from the first water usage instruction, and for example, when the first water usage instruction is a heating water usage instruction, the second water usage instruction is a domestic water usage instruction. When a second water consumption instruction is acquired, the driving motor 5 drives the flue baffle 4 to move from the H position to the G position, and high-temperature flue gas can enter from two side edges of the E/H area. Namely, high-temperature flue gas enters the heating and bathroom heat exchange areas simultaneously and participates in heating and bathroom heat exchange simultaneously, so that the heating function is not stopped when domestic hot water is used. Specifically, the domestic water instruction is obtained through the detection result of the water flow sensor 18, and when the water flow sensor 18 detects that the water flow reaches a certain value, the domestic water function can be started. At this time, the heating water and the domestic water may be simultaneously supplied through the movement of the barrier 4 on the basis of the supply of the heating water. It is of course also possible to supply heating water and domestic water simultaneously by the movement of the barrier 4 on the basis of the supply of domestic water, but this is the case in practice relatively rarely.
When the domestic water is provided, the heating water is not needed to be provided. For example, when a user does not need to use the heating function in summer and only needs the bathroom function, when the water flow sensor 18 detects that the water flow reaches a certain value, a first water instruction is obtained, and the bathroom function is started. At this time, the driving motor 5 drives the flue baffle 4 to move to the E position, and the high-temperature flue gas can only enter from the H area and fully exchange heat with the domestic water heat exchanger 14. At this time, the E area is blocked by the flue baffle 4, so that the flue gas cannot enter the E area and cannot exchange heat with the water in the heating water heat exchanger 3, and the whole machine only shows the bathroom function. Of course, the user does not need to use the heating function, so that the second book using instruction is not received.
Further, when the partial fire row group on the burner 10 is ignited according to the first water command, after driving the baffle 4 to be in the first state according to the second water command, it further includes: the remaining fire row groups on the burner 10 are ignited. For example, when the heating water fire row group is ignited according to the first water command, after the second water command is received and the baffle plate 4 is driven to be in the first state, the heating water fire row group is also ignited. Further, after igniting some/all of the banks on the burner 10 or igniting the remaining banks on the burner 10, it further comprises: and receiving a temperature control instruction, and adjusting the first fuel gas proportional valve 11 and/or the second fuel gas proportional valve 16 according to the temperature control instruction. Therefore, the power adjustment of different fuel gas amounts can be respectively carried out according to different heat requirements of three states, and the temperature adjustment of a wider area is satisfied.
According to the control method of the gas water heater provided by the embodiment of the invention, the baffle plate 4 can be driven to be in the working state corresponding to the first water instruction according to the acquired water use instruction, and the burner 10 is ignited to burn, so that high-temperature flue gas in the combustion chamber of the gas water heater enters different heat exchangers through the flue gas channels defined by the baffle plate 4, and different water use requirements are met.
Example 3
Embodiment 3 of the present invention provides a control device for a gas water heater, where the control device may or may not be located in the gas water heater. When located in a gas water heater, can be located in a controller of the gas water heater. Fig. 3 is a schematic structural diagram of a gas water heater control device according to embodiment 3 of the present invention, and as shown in fig. 3, the gas water heater control device according to embodiment 3 of the present invention includes an instruction acquisition module 30 and a control module 32.
Wherein the instruction acquisition module 30, the user acquires the first water instruction.
A control module 32 for driving the baffle 4 to be in an operating state corresponding to the first water command according to the first water command, and igniting part/all of the fire row groups on the burner 10; wherein, the baffle 4 defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater.
According to the control device for the gas water heater, provided by the embodiment of the invention, the baffle plate 4 can be driven to be in a working state corresponding to the first water instruction according to the acquired first water instruction, and the burner 10 is ignited to burn, so that high-temperature flue gas in the combustion chamber of the gas water heater enters different heat exchangers through the flue gas channel defined by the baffle plate 4, and different water requirements are met.
The control device for the gas water heater provided in embodiment 3 of the present invention can implement the control method for the gas water heater in embodiment 2 of the present invention, and will not be described herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, where the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. Wherein the storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (15)
1. A gas water heater, comprising:
a combustion chamber;
the heat exchange area comprises a heating water heat exchanger (3) and a domestic water heat exchanger (14);
a baffle plate (4) positioned between the combustion chamber and the heat exchange area in a first state, wherein the first state is that the baffle plate (4) is positioned below the heating water heat exchanger (3) and the domestic water heat exchanger (14) and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger (3) and part of flue gas channels between the combustion chamber and the domestic water heat exchanger (14);
the burner (10) in the combustion chamber comprises a heating water and fire row group and a living water and fire row group.
2. The gas water heater as set forth in claim 1, further comprising:
the baffle (4) is in a second state, wherein the second state is that the baffle (4) is positioned below the domestic water heat exchanger (14) and blocks a flue gas channel between the combustion chamber and the domestic water heat exchanger (14).
3. The gas water heater as set forth in claim 2, further comprising:
the baffle (4) is in a third state, and the third state is that the baffle (4) is positioned below the heating water heat exchanger (3) and blocks a flue gas channel between the combustion chamber and the heating water heat exchanger (3).
4. A gas water heater according to claim 3, further comprising a drive motor (5), said drive motor (5) being connected to said shutter (4) for driving said shutter (4) to switch between said first, second and third states.
5. A gas water heater according to claim 1, further comprising a flue baffle (2), the flue baffle (2) being arranged between the heating water heat exchanger (3) and the domestic water heat exchanger (14).
6. A gas water heater as claimed in claim 1, further comprising a flow sensor (18), the flow sensor (18) being arranged on a domestic water inlet channel.
7. A gas water heater according to claim 1, wherein,
the gas channel of the heating water and fire row group is provided with a first gas proportional valve (11), and the gas channel of the living water and fire row group is provided with a second gas proportional valve (16).
8. A gas water heater according to claim 7, further comprising a controller connected to a flow sensor (18), the first gas proportional valve (11), the second gas proportional valve (16) and a drive motor (5).
9. A gas water heater according to claim 1, characterized in that the ignition needle (7) and the fire detection needle (8) on the burner (10) are close to the heating water fire row group.
10. The control method of the gas water heater is characterized in that the gas water heater comprises a combustion chamber, a heat exchange area and a baffle plate (4), wherein the heat exchange area comprises a heating water heat exchanger (3) and a domestic water heat exchanger (14); a first state is arranged between the combustion chamber and the heat exchange area, wherein the first state is that the baffle plate (4) is positioned below the heating water heat exchanger (3) and the domestic water heat exchanger (14) and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger (3) and part of flue gas channels between the combustion chamber and the domestic water heat exchanger (14); the burner (10) in the combustion chamber comprises a heating water and fire row group and a living water and fire row group; the control method of the gas water heater comprises the following steps:
acquiring a first water instruction;
according to the first water instruction, driving the baffle plate (4) to be in a working state corresponding to the first water instruction, and igniting part/all of fire row groups on the burner (10);
wherein, the baffle plate (4) defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater;
the partial fire row group on the ignition burner (10) comprises:
when the first water instruction is a heating water instruction, igniting a heating water fire row group on the burner (10); when the first water instruction is a domestic water instruction, igniting a domestic water fire bank group on the burner (10);
when the partial fire row group on the burner (10) is ignited according to the first water instruction, after driving the baffle (4) to be in the first state according to the second water instruction, the method further comprises:
igniting the remaining fire row groups on the burner (10).
11. A control method of a gas water heater according to claim 10, wherein the driving of the shutter (4) in an operating condition corresponding to the first water command comprises:
when the first water instruction is a heating water instruction, driving the baffle plate (4) to be in a second state, wherein the second state is that the baffle plate (4) is positioned below the domestic water heat exchanger (14) and blocks a flue gas channel between the combustion chamber and the domestic water heat exchanger (14);
when the first water instruction is a domestic water instruction, the baffle plate (4) is driven to be in a third state, wherein the third state is that the baffle plate (4) is positioned below the heating water heat exchanger (3) and blocks a flue gas channel between the combustion chamber and the heating water heat exchanger (3).
12. A control method of a gas water heater according to claim 10, characterized in that, after driving the shutter (4) in the operating condition corresponding to said first water command and igniting part/all of the fire row groups on the burner (10), it further comprises:
acquiring a second water use instruction;
the baffle (4) is driven to be in a first state according to the second water use instruction, wherein the first state is that the baffle (4) is positioned below the heating water heat exchanger (3) and the domestic water heat exchanger (14) and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger (3) and part of flue gas channels between the combustion chamber and the domestic water heat exchanger (14).
13. A control method of a gas water heater according to claim 11, characterized in that after igniting part/all of the banks on the burner (10) or the remaining banks on the burner (10), it further comprises:
receiving a temperature control instruction;
according to the temperature control instruction, the first fuel gas proportional valve (11) and/or the second fuel gas proportional valve (16) are/is adjusted.
14. The control device of the gas water heater is characterized in that the gas water heater comprises a combustion chamber, a heat exchange area and a baffle plate (4), wherein the heat exchange area comprises a heating water heat exchanger (3) and a domestic water heat exchanger (14); a first state is arranged between the combustion chamber and the heat exchange area, wherein the first state is that the baffle plate (4) is positioned below the heating water heat exchanger (3) and the domestic water heat exchanger (14) and simultaneously blocks part of flue gas channels between the combustion chamber and the heating water heat exchanger (3) and part of flue gas channels between the combustion chamber and the domestic water heat exchanger (14); the burner (10) in the combustion chamber comprises a heating water and fire row group and a living water and fire row group; the control device of the gas water heater comprises:
the instruction acquisition module is used for acquiring a first water instruction by a user;
the control module is used for driving the baffle plate (4) to be in a working state corresponding to the first water instruction according to the first water instruction and igniting part/all of fire row groups on the burner (10); wherein, the baffle plate (4) defines a flue gas channel between the combustion chamber and the heat exchange area of the gas water heater;
the partial fire row group on the ignition burner (10) comprises:
when the first water instruction is a heating water instruction, igniting a heating water fire row group on the burner (10); when the first water instruction is a domestic water instruction, igniting a domestic water fire bank group on the burner (10);
when the partial fire row group on the burner (10) is ignited according to the first water instruction, after driving the baffle (4) to be in the first state according to the second water instruction, the method further comprises:
igniting the remaining fire row groups on the burner (10).
15. A computer-readable storage medium storing computer instructions for causing the computer to execute the control method of the gas water heater according to any one of claims 10 to 13.
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| CN201911000586.0A CN110671811B (en) | 2019-10-21 | 2019-10-21 | Gas water heater and control method thereof |
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| CN201911000586.0A CN110671811B (en) | 2019-10-21 | 2019-10-21 | Gas water heater and control method thereof |
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| CN110671811A (en) | 2020-01-10 |
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