CN114811947B - Control method of gas water heater and gas water heater - Google Patents
Control method of gas water heater and gas water heater Download PDFInfo
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- CN114811947B CN114811947B CN202210366559.0A CN202210366559A CN114811947B CN 114811947 B CN114811947 B CN 114811947B CN 202210366559 A CN202210366559 A CN 202210366559A CN 114811947 B CN114811947 B CN 114811947B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 979
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 488
- 238000010438 heat treatment Methods 0.000 claims abstract description 467
- 230000004044 response Effects 0.000 claims abstract description 19
- 239000008236 heating water Substances 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 198
- 230000001276 controlling effect Effects 0.000 description 50
- 230000001105 regulatory effect Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- F24H1/48—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
- F24H9/20—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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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)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The application relates to a control method of a gas water heater and the gas water heater. The gas water heater includes: the system comprises a hot water supply combustion heat exchange system, a heating combustion heat exchange system, a system connecting pipe and a bypass pipeline; the first end of the system connecting pipe is connected with the water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with the water inlet pipe of the hot water supply combustion heat exchange system; the first end of the bypass pipeline is connected with a water inlet pipe of the hot water supply combustion heat exchange system, and the second end of the bypass pipeline is used for being connected with a heating return pipe; the water inlet pipe of the heating combustion heat exchange system is used for connecting a heating return pipe; the control method comprises the following steps: and in response to the fact that the user is not identified to use the hot water and the gas water heater is in a heating mode, starting the hot water combustion heat exchange system and the heating combustion heat exchange system to perform combustion heat exchange to perform heating circulation, and controlling water of the heating return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipeline. The control method can improve the heating temperature rising speed.
Description
Technical Field
The application relates to the technical field of gas water heaters, in particular to a control method, a device, control equipment, a gas water heater and a storage medium of the gas water heater.
Background
When the bath is performed in winter, the temperature of the bathroom is low, and especially under the condition that central heating is not performed in the south, people feel cold and cannot bath comfortably; in order to solve the above problems, a gas water heater capable of heating and supplying hot water has been developed. The most typical gas water heater capable of heating and supplying hot water is a gas water heater of a double-combustion heat exchange system.
In the prior art, the gas water heater comprises a heating combustion heat exchange system and a hot water heating combustion heat exchange system, and the heating combustion heat exchange system and the hot water heating combustion heat exchange system are independently operated. However, the gas water heater has a slower heating rate, which results in poor heating experience for users.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a control method of the gas water heater, which can improve the heating speed and the heating capacity of the gas water heater and improve the heating experience of users.
The second technical problem to be solved by the invention is to provide the gas water heater, which can improve the heating temperature rising speed and the heating capacity of the gas water heater and improve the heating experience of users.
The first technical problem is solved by the following technical scheme:
a control method of a gas water heater, characterized in that the gas water heater comprises: the system comprises a hot water supply combustion heat exchange system, a heating combustion heat exchange system, a system connecting pipe and a bypass pipeline; the first end of the system connecting pipe is connected with the water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with the water inlet pipe of the hot water supply combustion heat exchange system; the first end of the bypass pipeline is connected with a water inlet pipe of the hot water supply combustion heat exchange system, and the second end of the bypass pipeline is used for being connected with a heating return pipe; the water inlet pipe of the heating combustion heat exchange system is used for connecting a heating return pipe; the control method comprises the following steps:
and in response to the fact that the user is not identified to use the hot water and the gas water heater is in a heating mode, starting the hot water combustion heat exchange system and the heating combustion heat exchange system to perform heating circulation, and controlling water of the heating return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipeline so that water of the water outlet pipe of the hot water combustion heat exchange system flows to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.
Based on the control method, the heating combustion heat exchange system and the hot water heating combustion heat exchange system can be linked, when the gas water heater is in a heating mode, the hot water heating combustion heat exchange system is used for preheating water and then the water is subjected to secondary heating through the heating combustion heat exchange system, so that the supply of heating hot water is realized, the heating temperature rising speed and the heating capacity of the gas water heater are improved, and the heating experience of a user is improved.
In one embodiment, the step of controlling the flow of water from the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises: acquiring a first water temperature value of a heating return pipe; responding to the absolute value of the first target temperature difference value being smaller than or equal to a first preset water temperature difference threshold value, controlling water in a heating return pipe to flow to a water inlet pipe of a heating combustion heat exchange system, controlling the water flow of the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through a bypass pipe, and stopping the heating water combustion heat exchange system to perform combustion heat exchange; the first target temperature difference is the difference between the first water temperature value and the preset water temperature value. In this embodiment, can guarantee under the prerequisite of gas heater's the heating temperature accuracy nature, reduced gas heater's energy consumption and use cost, further promoted user's heating experience, improved gas heater's energy-conserving nature.
In one embodiment, the preset water temperature value is a heating water temperature value preset by a user.
In one embodiment, after the step of controlling the water flow in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water flow in the heating return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe and stopping the hot water supply combustion heat exchange system to perform combustion heat exchange, the method further comprises the steps of: acquiring a second water temperature value of a water outlet pipe of the heating combustion heat exchange system; responding to the absolute value of the second target temperature difference value being larger than a second preset water temperature difference threshold value, adjusting the corresponding combustion load of the heating combustion heat exchange system according to the second target temperature difference value, and returning to the step of acquiring the second water temperature value of the water outlet pipe of the heating combustion heat exchange system until the absolute value of the second target temperature difference value is smaller than or equal to the second preset water temperature difference threshold value; the second target temperature difference is the difference between the second water temperature value and a preset heating temperature value. In the embodiment, the convenience of the gas water heater is improved.
In one embodiment, after the step of controlling the water flow in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water flow in the heating return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe and stopping the hot water supply combustion heat exchange system to perform combustion heat exchange, the method further comprises the steps of: in response to identifying that the user uses hot water and the gas water heater is in a heating mode, starting a hot water combustion heat exchange system to burn and exchange heat for hot water output, keeping water flow of a heating return water pipeline stopped flowing to a water inlet pipe of the hot water combustion heat exchange system through a bypass pipeline, and keeping water flow of the heating return water pipeline to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation. In the embodiment, the convenience of the gas water heater is improved.
In one embodiment, the step of controlling the flow of water from the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises: and in response to the recognition that the user uses hot water and the gas water heater is in a heating mode, controlling water in the heating return pipe to stop flowing to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipeline, controlling the water flow of the heating return pipe to perform heating circulation to the water inlet pipe of the heating combustion heat exchange system, and controlling the hot water combustion heat exchange system to perform hot water output. In the embodiment, the convenience of the gas water heater is improved.
In one embodiment, the control method further comprises the steps of responding to the gas water heater to be in a hot water supply mode, starting the combustion heat exchange of the hot water supply combustion heat exchange system to output hot water, responding to the gas water heater to be in a heating mode, keeping the combustion heat exchange of the hot water supply combustion heat exchange system to output hot water, keeping water flow of the heating return water pipeline stopped flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, starting the combustion heat exchange of the heating combustion heat exchange system, and controlling water flow of the heating return water pipeline to be in heating circulation to the water inlet pipe of the heating combustion heat exchange system. In the embodiment, the convenience of the gas water heater is improved.
In one embodiment, the step of controlling the flow of water from the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises: acquiring the water inflow of a water inlet pipe of a hot water supply combustion heat exchange system; if the increment of the water inflow in the preset time is larger than or equal to the increment threshold value, determining that the user uses the hot water. In the embodiment, the convenience of the gas water heater is improved.
The second technical problem is solved by the following technical scheme:
A gas water heater, the gas water heater comprising: the system comprises control equipment, a hot water supply combustion heat exchange system, a heating combustion heat exchange system, a system connecting pipe and a bypass pipeline; the first end of the system connecting pipe is connected with the water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with the water inlet pipe of the hot water supply combustion heat exchange system; the first end of the bypass pipeline is connected with a water inlet pipe of the hot water supply combustion heat exchange system, and the second end of the bypass pipeline is used for being connected with a heating return pipe; the water inlet pipe of the heating combustion heat exchange system is used for connecting a heating return pipe; the control device stores a computer program for implementing the steps of any of the above-described method embodiments when the computer program is executed.
In one embodiment, the gas water heater further comprises a diverter valve; the first end of the steering valve is used for being connected with a heating return pipe, the second end of the steering valve is connected with the second end of the bypass pipe, and the third end of the steering valve is respectively connected with the water inlet pipe of the heating combustion heat exchange system and the second end of the system connecting pipe; the steering valve is electrically connected with the control device. In the embodiment, the convenience of the gas water heater is improved.
Drawings
FIG. 1 is an application environment diagram of a control method of a gas water heater in one embodiment;
FIG. 2 is a schematic flow chart of a control method of a gas water heater according to an embodiment;
FIG. 3 is a second flow chart of a method of controlling a gas water heater according to one embodiment;
FIG. 4 is a third flow chart of a method of controlling a gas water heater according to one embodiment;
FIG. 5 is a fourth flow chart of a method of controlling a gas water heater according to one embodiment;
FIG. 6 is a block diagram of a control device of a gas water heater according to an embodiment;
FIG. 7 is an internal structural diagram of a control device in one embodiment;
FIG. 8 is a first internal block diagram of a gas water heater in one embodiment;
FIG. 9 is a second internal block diagram of a gas water heater in one embodiment;
FIG. 10 is a third internal structural view of a gas water heater in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
The embodiment of the application provides a control method, a device, control equipment, a gas water heater and a storage medium of the gas water heater, which can link a heating combustion heat exchange system and a hot water supply combustion heat exchange system, so that the gas water heater can preheat water by using the hot water supply combustion heat exchange system and then perform secondary heating by the heating combustion heat exchange system when in a heating mode, thereby realizing the supply of heating hot water, improving the heating temperature rising speed and the heating capacity of the gas water heater, and improving the heating experience of users.
Next, an application environment of the control method of the gas water heater provided in the embodiment of the present application will be briefly described. In one specific example, as shown in FIG. 1, the application environment is a gas water heater. The gas water heater comprises a hot water supply combustion heat exchange system 100, a heating combustion heat exchange system 200, a system connecting pipe 300 and a bypass pipeline 400; wherein, a first end of the system connecting pipe 300 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100, and a second end of the system connecting pipe 300 is connected with the water inlet pipe 201 of the hot water supply combustion heat exchange system 200; the first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100, and the second end of the bypass pipe 400 is used for being connected with the heating return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used to connect the heating return pipe 500. The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein. In addition, the control method of the gas water heater provided by the application can be applied to the control device 600 of the gas water heater shown in fig. 1.
In one embodiment, as shown in fig. 2, a control method of a gas water heater is provided, the control method including step 201.
In step 201, in response to the fact that the user is not identified to use hot water and the gas water heater is in the heating mode, the hot water combustion heat exchange system and the heating combustion heat exchange system are started to perform heating circulation, water of the heating return pipe is controlled to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipeline, and water of the water outlet pipe of the hot water combustion heat exchange system flows to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.
The control device 600 of the gas water heater, when it is not recognized that the user uses hot water and the gas water heater is in the heating mode, indicates that at this time, not only the user needs to perform heating when the gas water heater selects the heating mode, but also the user does not need to obtain hot water through the hot water combustion heat exchange system 100, so that the control device can start the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform a heating cycle; meanwhile, the control device 600 controls the water of the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and at this time, the water in the heating return pipe 500 stops flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200. At this time, the water flow from the heating return pipe 500 to the heating return pipe 500 through the bypass pipe 400, the water inlet pipe 101 of the hot water combustion heat exchange system 100, the hot water heat exchanger, the water outlet pipe 102 of the hot water combustion heat exchange system 100, the system connection pipe 300, the water inlet pipe 201 of the heating combustion heat exchange system 200, the heating heat exchanger, the water outlet pipe 202 of the heating combustion heat exchange system 200, and the heating water outlet pipe can connect the water paths of the heating combustion heat exchange system 200 and the hot water combustion heat exchange system 100 in series.
Since the hot water combustion heat exchange system and the heating combustion heat exchange system in the conventional gas water heater are operated independently, but the combustion loads of the corresponding hot water combustion heat exchange system and the heating combustion heat exchange system are fixed, the heating capacity of the conventional gas water heater can only be increased by adding the configuration of the corresponding heating combustion heat exchange system.
The control device 600 controls the water in the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and the water in the heating return pipe 500 stops flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200; meanwhile, the hot water supply combustion heat exchange system 100 and the hot water supply combustion heat exchange system 200 are started to perform combustion heat exchange to perform heating circulation, namely, the water in the hot water supply return pipe 500 flows to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400 and then is preheated by the hot water supply combustion heat exchange system 100, then flows through the water outlet pipe 102 of the hot water supply combustion heat exchange system 100, the system connecting pipe 300 and the water inlet pipe 201 of the hot water supply combustion heat exchange system 200 and then is secondarily heated by the hot water supply combustion heat exchange system 200, then flows through the water outlet pipe 202 of the hot water supply combustion heat exchange system 200, the water heating outlet pipe 700, the hot water return pipe 500 and the bypass pipe 400, and finally flows to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400.
It should be noted that, the specific control manner of the control device 600 for starting the hot water supply combustion heat exchange system and the heating combustion heat exchange system to perform the heating cycle is not limited in the present invention.
In one specific example, initiating the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform a heating cycle includes initiating the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform a combustion heat exchange and initiating water in the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform a cycle.
Wherein, heating combustion heat exchange system 200 includes: a heating burner, a heating heat exchanger and a heating gas regulating valve; wherein, the water inlet pipe 210 of the heating combustion heat exchange system 200 is connected with the water outlet pipe 202 of the heating combustion heat exchange system 200 through a heating heat exchanger; the first end of the heating gas regulating valve is connected with the heating burner, and the second end of the heating gas regulating valve is used for being connected with the gas inlet pipe; the heating burner and the heating gas regulating valve are electrically connected to the control device 600. The hot water combustion heat exchange system 100 includes: a hot water supply burner, a hot water supply heat exchanger and a hot water supply gas regulating valve; the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 through a hot water supply heat exchanger; the first end of the hot water supply gas regulating valve is connected with the hot water supply burner, and the second end of the hot water supply gas regulating valve is used for being connected with the gas inlet pipe; the hot water burner and the hot water gas regulating valve are electrically connected to the control apparatus 600. The control apparatus 600 may control the initial ignition gas amount through the heating gas adjusting valve and the hot water gas adjusting valve, and perform ignition through controlling the heating burner and the hot water burner, thereby enabling the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 to be started for combustion heat exchange.
Wherein, through setting up the circulating pump in gas heater. Wherein, the circulating pump is arranged between the third end of the steering valve and the water inlet pipe 201 of the heating combustion heat exchange system 200, and the circulating pump is electrically connected with the control device 600. The control device can start the water in the heating combustion heat exchange system 200 to circulate by starting the circulating pump. In the case where the control apparatus 600 controls the water of the heating return pipe 500 to flow to the water inlet pipe 101 of the heating water combustion heat exchange system 100 through the bypass pipe 400, the water in the heating combustion heat exchange system 200 is started to circulate, i.e., the water in the heating water combustion heat exchange system 100 and the heating combustion heat exchange system 200 can be started to circulate at the same time.
The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein.
It should be noted that, the specific control manner of the control device 600 for controlling the water in the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400 is not limited in the present invention.
In one specific example, the diverter valve may be provided by a gas water heater. The first end of the steering valve is used for being connected with the heating return pipe 500, the second end of the steering valve is connected with the second end of the bypass pipe 400, and the third end of the steering valve is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100; the steering valve is electrically connected to the control device 600. That is, in case that the user is not recognized to use the hot water and the gas water heater is in the heating mode by the control apparatus 600, the control diverter valve switches on the connection of the heating return pipe 500 and the bypass pipe 400, and cuts off the connection of the heating return pipe 500 and the water inlet pipe 201 of the heating combustion heat exchange system 200, thereby realizing control of water of the heating return pipe 500 flowing to the water inlet pipe 101 of the heating water combustion heat exchange system 100 through the bypass pipe 400 and control of water in the heating return pipe 500 stopping flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200. The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein.
Based on this, on the basis of the gas water heater to which the system connection pipe 300 and the bypass pipe 400 are added, a heating cycle is performed by starting the combustion heat exchange of the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 in response to the fact that the user is not identified to use hot water and the gas water heater is in a heating mode, and controlling water of the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe flow 400 so that water of the water outlet pipe 101 of the hot water combustion heat exchange system 100 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200 through the system connection pipe 300; the heating combustion heat exchange system 200 and the hot water heating combustion heat exchange system 100 are linked, so that when the gas water heater is in a heating mode, the hot water is preheated by the hot water heating combustion heat exchange system 100 and then is subjected to secondary heating by the heating combustion heat exchange system 200, the supply of heating hot water is realized, the heating temperature rising speed and the heating capacity of the gas water heater are improved, and the heating experience of a user is improved.
In one embodiment, as shown in fig. 3, the step of controlling the water of the heating return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further includes steps 202 and 203.
Step 202, a first water temperature value of a heating return pipe is obtained.
Wherein, the control apparatus 600 of the gas water heater may acquire the first water temperature value of the heating return pipe 500 after controlling the water of the heating return pipe 500 to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe flow 400. It should be noted that, the specific control manner of the control device 600 for obtaining the first water temperature value of the heating return pipe 500 is not limited in the present invention. In a specific example, the first water temperature value may be acquired by providing a third temperature sensor disposed between the first end of the steering valve and the heating return pipe, and the control apparatus 600 is electrically connected to the third temperature sensor, so the control apparatus 600 may acquire the first water temperature value of the heating return pipe 500 through the third temperature sensor. The foregoing is merely a specific example, and may be flexibly set according to requirements in practical applications, which is not limited herein.
And 203, controlling the water in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system in response to the absolute value of the first target temperature difference value being smaller than or equal to a first preset water temperature difference threshold value, controlling the water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipeline, and stopping the heating water combustion heat exchange system to perform combustion heat exchange.
The first target temperature difference is the difference between the first water temperature value and the preset water temperature value. In one embodiment, the preset water temperature value is a heating water temperature value preset by a user. It is understood that the preset water temperature value may be, but is not limited to, a water temperature value set by a user through the gas water heater.
After acquiring the first water temperature value of the heating return pipe 500, the control apparatus 600 may calculate a first target temperature difference value according to the first water temperature value and a preset water temperature value; in addition, when the absolute value of the first target temperature difference is smaller than or equal to the first preset water temperature difference threshold, that is, when the water temperature value of the heating return pipe 500 is equal to the preset water temperature value, it is indicated that the current gas water heater has rapidly provided the water temperature corresponding to the preset water temperature value in the heating return pipe 500, and the hot water combustion heat exchange system 100 needs to be stopped in time for combustion heat exchange, so as to avoid scalding safety accidents caused when the user suddenly uses hot water due to overhigh water temperature in the water outlet pipe 102 of the hot water combustion heat exchange system 100; therefore, the control device 600 controls the water in the heating return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 at this time, and controls the water in the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the heating water combustion heat exchange system 100 through the bypass pipe 400, that is, the water in the heating return pipe 500 does not flow through the water inlet pipe 101 of the heating water combustion heat exchange system 100, the heating water heat exchanger 104 and the water outlet pipe 102 of the hot water combustion heat exchange system 100 through the bypass pipe 400 at this time, but the water in the heating return pipe 500 directly flows through the water inlet pipe 201 of the heating combustion heat exchange system 200, the heating heat exchanger 204, the water outlet pipe 202 of the heating combustion heat exchange system 200, and the heating water outlet pipe 700 to the heating return pipe 500, so that the waterways of the heating combustion heat exchange system 200 and the heating water combustion heat exchange system 100 can be cut off in series. Meanwhile, the hot water supply combustion heat exchange system 100 stops performing combustion heat exchange, so that the situation that the water temperature in the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 is higher than a preset water temperature value is avoided, and the user is prevented from suddenly outputting hot water through the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 at the moment to cause scalding safety accidents.
In this embodiment, under the premise of ensuring the heating temperature accuracy of the gas water heater, the energy consumption and the use cost of the gas water heater are reduced, and meanwhile, the user is prevented from suddenly outputting hot water through the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 to cause scalding safety accidents, and the safety and the energy conservation of the gas water heater are improved.
It should be noted that, the specific control manner of the control device 600 for controlling the water in the heating return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 is not limited in the present invention; meanwhile, the specific control manner of controlling the flow of the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400 is not limited at all.
In one specific example, the diverter valve may be provided by a gas water heater. The first end of the steering valve is used for being connected with the heating return pipe 500, the second end of the steering valve is connected with the second end of the bypass pipe 400, and the third end of the steering valve is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100; the steering valve is electrically connected to the control device 600. That is, in case that the absolute value of the first target temperature difference value is less than or equal to the first preset water temperature difference threshold value, the control device 600 controls the diverter valve to cut off the connection of the heating return pipe 500 and the bypass pipe 400 and to conduct the connection of the heating return pipe 500 and the water inlet pipe 201 of the heating combustion heat exchange system 200, thereby achieving control of the water flow in the heating return pipe 500 to the water inlet pipe 201 of the heating combustion heat exchange system 200 and control of the water flow of the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the heating water combustion heat exchange system 100 through the bypass pipe 400. The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein.
It should be noted that, the specific control manner of the control device 600 for controlling the hot water supply combustion heat exchange system to stop the combustion heat exchange is not limited in the present invention.
In one specific example, the hot water combustion heat exchange system 100 includes: a hot water supply burner, a hot water supply heat exchanger and a hot water supply gas regulating valve; the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 through a hot water supply heat exchanger; the first end of the hot water supply gas regulating valve is connected with the hot water supply burner, and the second end of the hot water supply gas regulating valve is used for being connected with the gas inlet pipe; the hot water burner and the hot water gas regulating valve are electrically connected to the control apparatus 600. The control device 600 can control the gas quantity to be 0 through the hot water supply gas regulating valve, and can also stop the hot water supply combustion heat exchange system to perform combustion heat exchange through closing the hot water supply burner. The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein.
In one embodiment, as shown in fig. 3, the step of controlling the water flow in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water flow in the heating return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe, and stopping the hot water supply combustion heat exchange system to perform combustion heat exchange further includes step 204 and step 205.
Step 204, obtaining a second water temperature value of a water outlet pipe of the heating combustion heat exchange system.
The control device 600 of the gas water heater performs the steps of controlling the water flow in the heating return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, controlling the water flow in the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe flow 400, and stopping the hot water supply combustion heat exchange system 100 to perform combustion heat exchange, and then obtaining the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200.
It should be noted that, the specific control manner of the control device 600 to obtain the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is not limited in the present invention. In a specific example, the second water temperature value may be acquired through a fourth temperature sensor provided at the outlet pipe 202 of the heating combustion heat exchange system 200, so the control apparatus 600 may acquire the second water temperature value through the fourth temperature sensor. The foregoing is merely a specific example, and may be flexibly set according to requirements in practical applications, which is not limited herein.
Step 205, in response to the absolute value of the second target temperature difference being greater than the second preset water temperature difference threshold, adjusting the combustion load corresponding to the heating combustion heat exchange system according to the second target temperature difference, and returning to the step of obtaining the second water temperature value of the water outlet pipe of the heating combustion heat exchange system until the absolute value of the second target temperature difference is less than or equal to the second preset water temperature difference threshold.
The second target temperature difference is the difference between the second water temperature value and a preset heating temperature value. It is understood that the preset heating temperature value may be, but is not limited to, a heating temperature value set by a user through the gas water heater.
After obtaining the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200, the control device 600 may calculate a second target temperature difference value according to the second water temperature value and a preset heating temperature value; and, in case that the absolute value of the second target temperature difference is greater than the second preset water temperature difference threshold, that is, the water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is not equal to the preset heating temperature value, the combustion load of the heating combustion heat exchange system 200 is adjusted according to the second target temperature difference, and the process returns to the step of obtaining the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 until the absolute value of the second target temperature difference is less than or equal to the second preset water temperature difference threshold, so that the water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is equal to the preset heating temperature value. The heating temperature accuracy of the gas water heater is improved, and the heating experience of a user is further improved.
In this embodiment, the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is obtained; then, when the absolute value of the second target temperature difference is greater than a second preset water temperature difference threshold, adjusting the corresponding combustion load of the heating combustion heat exchange system 200 according to the second target temperature difference, and returning to the step of obtaining the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 after the second preset time until the absolute value of the second target temperature difference is less than or equal to the second preset water temperature difference threshold, so that the water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is equivalent to the preset heating temperature value; the energy consumption and the use cost of the gas water heater are reduced on the premise of ensuring the heating temperature accuracy of the gas water heater, the heating experience of a user is further improved, and the convenience of the gas water heater is improved.
It should be noted that, the specific control manner of the control device 600 for adjusting the combustion load corresponding to the heating combustion heat exchange system 200 is not limited in the present invention.
In a specific example, the gas water heater further comprises a strong exhaust fan; the strong exhaust fan is arranged at the smoke outlet of the combustion heat exchange cavity; the strong exhaust fan is electrically connected with the control equipment. And/or the gas water heater further comprises a strong blower; the strong blower is arranged at the bottom of the combustion heat exchange cavity; the strong blower is electrically connected to the control device. In the case that the absolute value of the second target temperature difference is greater than the second preset water temperature difference threshold, that is, the water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is not equal to the preset heating temperature value, it is indicated that the combustion load corresponding to the previous heating combustion heat exchange system needs to be adjusted, so that it is indicated that the combustion load corresponding to the heating combustion heat exchange system 200 needs to be adjusted according to the second target temperature difference. The corresponding combustion load of the heating combustion heat exchange system 200 can be adjusted, the corresponding gas quantity can be adjusted by controlling a heating gas adjusting valve through the control device 600, and the air content in the combustion heat exchange cavity can be adjusted by controlling a strong exhaust fan and/or a strong blower through the control device. In addition, the gas water heaters of different types are tested before leaving the factory, and the mapping relation list of the different second target temperature differences and the combustion loads corresponding to the heating combustion heat exchange system is stored in the control device 600 in advance, so that the control device 600 can search in the mapping relation list according to the second target temperature differences, and adjust the combustion loads corresponding to the heating combustion heat exchange system 200 according to the search result. The foregoing is merely a specific example, and may be flexibly set according to requirements in practical applications, which is not limited herein.
In one embodiment, as shown in fig. 4, the step of controlling the water flow in the heating return pipe to the water inlet pipe of the heating combustion heat exchange system, controlling the water flow in the heating return pipe to stop flowing to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipe, and stopping the hot water combustion heat exchange system to perform combustion heat exchange further includes step 206.
In step 206, in response to identifying that the user uses hot water and the gas water heater is in a heating mode, starting the hot water combustion heat exchange system to burn heat for hot water output, maintaining water flow of the heating return water pipeline to stop flowing to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipeline, and maintaining water flow of the heating return water pipeline to the water inlet pipe of the heating combustion heat exchange system for heating circulation.
When step 203 is executed, the control device 600 of the gas water heater controls the water in the heating return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 and controls the water in the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the heating water combustion heat exchange system 100 through the bypass pipe 400 and stops the heating water combustion heat exchange system 100 from performing combustion heat exchange when the absolute value of the first target temperature difference value is less than or equal to the first preset water temperature difference threshold, that is, when the water temperature value of the heating return pipe 500 is equal to the preset water temperature value, so as to avoid that the water temperature in the water outlet pipe 102 of the heating water combustion heat exchange system 100 is higher than the preset water temperature value; then, the control apparatus 600 restarts the combustion heat exchange of the hot water supply combustion heat exchange system 100, which has stopped the combustion heat exchange, and outputs hot water in case that it is recognized that the user uses hot water and the gas water heater is in the heating mode; at the same time, the water flow of the heating return pipe 500 is maintained to stop flowing through the bypass pipe flow 400 to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100, and the water flow of the heating return pipe 500 is maintained to circulate to the water inlet pipe 201 of the heating combustion heat exchange system 200.
It can be understood that in the case that the water flow of the heating return pipe 500 is stopped to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe flow 400, the water of the heating return pipe 500 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200, and flows through the water outlet pipe 202 of the heating combustion heat exchange system 200 and the heating water outlet pipe 700 to the heating return pipe 500 after being heated by the heating combustion heat exchange system 200, so that the heating cycle when the heating combustion heat exchange system 200 operates independently is realized. Meanwhile, since the water flow of the heating return water pipe 500 stops flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe flow 400 and the user is identified to use the hot water, the water in the water inlet pipe 1000 of the water heater of the gas water heater flows into the hot water combustion heat exchange system 100 through the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 to perform combustion heat exchange, and after the combustion heat exchange, the hot water is output through the water outlet pipe 102 of the hot water combustion heat exchange system 100 and the hot water outlet pipe 900, so that the hot water output is realized when the hot water supply combustion heat exchange system 100 operates independently.
In this embodiment, after the steps of controlling the water flow in the heating return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, controlling the water flow in the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400, and stopping the hot water combustion heat exchange system 100 for performing combustion heat exchange are performed, if it is recognized that the user uses hot water and the gas water heater is in the heating mode, starting the hot water combustion heat exchange system 100 for performing hot water output, and keeping the water flow in the heating return pipe 500 to stop flowing to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400, thereby realizing that the hot water combustion heat exchange system 100 operates independently for performing hot water output; meanwhile, the water in the heating return pipeline 500 is kept to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, so that the heating combustion heat exchange system 200 can be independently operated to perform heating circulation, and the convenience of the gas water heater is improved.
In one embodiment, as shown in fig. 4, the step of controlling the flow of water from the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further includes step 207.
Step 207, in response to identifying that the user uses hot water and the gas water heater is in a heating mode, controlling water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipeline, controlling water in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system for heating circulation, and controlling the heating water combustion heat exchange system for combustion heat exchange for hot water output.
When the control device 600 of the gas water heater executes step 201, controlling water in the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and preheating the water by using the hot water supply combustion heat exchange system 100 when the gas water heater is in a heating mode, and then performing secondary heating through the heating combustion heat exchange system 200; at this time, if it is recognized that the user uses hot water and is in the heating mode, in order to ensure that the hot water supply combustion heat exchange system 100 of the gas water heater can timely perform hot water output, it is necessary to control water in the heating return pipe 500 to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and control water flow of the heating return pipe 500 to the water inlet pipe 101 of the heating combustion heat exchange system 200; at this time, the water in the heating return pipe 500 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200, and flows through the water outlet pipe 202 and the heating water outlet pipe 700 of the heating combustion heat exchange system 200 to the heating return pipe 500 after being heated by the heating combustion heat exchange system 200, so that the heating cycle when the heating combustion heat exchange system 200 operates alone is realized. Meanwhile, since the water flow of the heating return water pipe 500 stops flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe flow 400 and the user is identified to use the hot water, the water in the water inlet pipe 1000 of the water heater of the gas water heater flows into the hot water combustion heat exchange system 100 through the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 to perform combustion heat exchange, and after the combustion heat exchange, the hot water is output through the water outlet pipe 102 of the hot water combustion heat exchange system 100 and the hot water outlet pipe 900, so that the hot water output is realized when the hot water supply combustion heat exchange system 100 operates independently.
In the present embodiment, after the step of controlling the water of the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400 is performed, if it is recognized that the user uses hot water and the gas water heater is in the heating mode, controlling the water in the heating return pipe 500 to stop flowing to the water inlet pipe of the hot water combustion heat exchange system 100 through the bypass pipe 400, and controlling the water of the heating return pipe 500 to flow to the water inlet pipe 101 of the heating combustion heat exchange system 200 to perform a heating cycle; meanwhile, the hot water output is performed by controlling the combustion heat exchange of the hot water combustion heat exchange system 100, so that the independent operation of the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 is realized, the phenomenon that the hot water cannot be timely output by the hot water combustion heat exchange system 100 when the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 are utilized for heating circulation is avoided, and the reliability and convenience of gas hot water are improved.
In one embodiment, as shown in FIG. 4, the control method further includes step 208.
Step 208, after the combustion heat exchange system of the hot water supply is started to perform combustion heat exchange to perform hot water output in response to the gas water heater being in the hot water supply mode, the combustion heat exchange system of the hot water supply is kept to perform hot water output in response to the gas water heater being in the heating mode, water flow of the water return pipeline is kept to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, the combustion heat exchange system of the hot water supply combustion heat exchange system is started, and water flow of the water return pipeline of the hot water supply is controlled to perform heating circulation to the water inlet pipe of the hot water supply combustion heat exchange system.
The control device 600 of the gas water heater recognizes that the gas water heater is only in the hot water supply mode before executing step 201, and needs to control water in the heating return pipe 500 to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and control water in the heating return pipe 500 to flow to the water inlet pipe 101 of the heating combustion heat exchange system 200, so that the hot water supply combustion heat exchange system 100 is independently started to perform combustion heat exchange, and thus, the independent operation is realized to perform hot water output through the hot water supply outlet pipe 900; then, in the process that the gas water heater performs hot water output through the hot water supply outlet pipe 900 by independently operating the hot water supply combustion heat exchange system 100, when the gas water heater is identified to be in a heating mode, the hot water combustion heat exchange system 100 is kept to perform combustion heat exchange to perform hot water output, the water flow of the heating return water pipeline 500 is kept to stop flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipeline 400, the heating combustion heat exchange system 200 is started to perform combustion heat exchange, and meanwhile, the water flow of the heating return water pipeline 500 is controlled to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 to perform heating circulation, so that the heating circulation when the heating combustion heat exchange system 200 independently operates is realized.
In this embodiment, after the gas water heater is in the hot water supply mode, the hot water combustion heat exchange system 100 is started to perform combustion heat exchange to perform hot water output, and the gas water heater is in the heating mode, the hot water combustion heat exchange system 100 is kept to perform combustion heat exchange to perform hot water output, and the water flow of the heating return pipeline 500 is kept to stop flowing to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipeline 400, and the heating combustion heat exchange system 200 is started to perform combustion heat exchange, so that the water flow of the heating return pipeline 500 is controlled to perform heating circulation to the water inlet pipe 201 of the heating combustion heat exchange system 200, thereby realizing that whether a user needs to perform heating in time in the process of performing hot water output by independently operating the hot water combustion heat exchange system 100 of the gas water heater, and performing timely heating circulation by independently operating the heating combustion heat exchange system 200 under the condition that the user selects the heating mode by the gas water heater.
It should be noted that the present invention is not limited in any way as to how the control device 600 recognizes the specific control manner of using hot water by the user.
In one embodiment, as shown in fig. 5, the step of controlling the water of the heating return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further includes step 209 and step 210.
Step 209, obtaining the inflow of water of the water inlet pipe of the hot water supply combustion heat exchange system.
Step 210, if the increment of the inflow water flow in the preset time is greater than or equal to the increment threshold, determining that the user uses the hot water is identified.
In the case where the water in the heating return pipe 500 is controlled to flow to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400, it is described that the hot water combustion heat exchange system 100 and the heating combustion heat exchange system 200 need to perform the heating cycle at the same time at this time, and thus the water inlet flow rate of the water inlet pipe 101 of the hot water combustion heat exchange system 100 needs to be obtained. Since the inflow amount of the water introduced into the water inlet pipe 101 of the hot water combustion heat exchange system 100 is not 0 while the heating cycle is performed, it is determined whether the user is identified as using the hot water by determining whether the increment of the inflow amount of the water introduced into the water inlet pipe 101 of the hot water combustion heat exchange system 100 within the preset time is greater than or equal to the increment threshold. And, in case that the increment of the inflow water flow rate of the inflow pipe 101 of the hot water combustion heat exchange system 100 within the preset time is greater than or equal to the increment threshold value, it is determined that the user uses the hot water. On the contrary, in case that the increment of the inflow water flow of the inflow pipe 101 of the hot water combustion heat exchange system 100 within the preset time is smaller than the increment threshold value, it is determined that the user is not identified to use the hot water.
In the present embodiment, in the case of controlling the water of the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, the water inlet flow rate of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is obtained; then, when the increment of the inflow water flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 within the preset time is greater than or equal to the increment threshold, it is determined that the user uses hot water, and convenience of the gas water heater is improved.
In a specific example, in case that the water controlling the heating return pipe 500 stops flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, it is explained that only the heating combustion heat exchange system 200 is required to be operated alone to perform the heating cycle at this time. At this time, the user may be identified to use the hot water by acquiring the inflow water flow of the water inlet pipe 101 of the hot water combustion heat exchange system 100, and determining that the acquired inflow water flow of the water inlet pipe 101 of the hot water combustion heat exchange system 100 is greater than or equal to the starting hot water flow threshold. On the contrary, in the case that the inflow water flow rate of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is smaller than the start hot water supply flow rate threshold value, it is determined that the use of hot water by the user is not recognized. The above is merely a specific example, and is flexibly set according to the user's needs in practical applications, and is not limited herein.
It should be understood that, although the steps in the flowcharts of fig. 2-5 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-5 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.
In one embodiment, as shown in fig. 6, there is provided a control apparatus of a gas water heater system including a hot water supply combustion heat exchange system 100, a hot water supply combustion heat exchange system 200, a system connection pipe 300, and a bypass pipe 400; wherein, a first end of the system connecting pipe 300 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100, and a second end of the system connecting pipe 300 is connected with the water inlet pipe 201 of the hot water supply combustion heat exchange system 200; the first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100, and the second end of the bypass pipe 400 is used for being connected with the heating return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used to connect the heating return pipe 500. The control device includes a first control module 6100.
The first control module 6100 is configured to start the hot water combustion heat exchange system and the heating combustion heat exchange system to perform combustion heat exchange to perform heating circulation in response to that the user is not identified to use hot water and the gas water heater is in a heating mode, and control water of the heating return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipe, so that water of the water outlet pipe of the hot water combustion heat exchange system flows to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.
In this embodiment, the control device of the gas water heater system can link the heating combustion heat exchange system 200 and the hot water heating combustion heat exchange system 100, so that when the gas water heater is in a heating mode, the hot water heating combustion heat exchange system 100 is used for preheating water and then performing secondary heating through the heating combustion heat exchange system 200, thereby realizing the provision of heating hot water, improving the heating rate and the heating capacity of the gas water heater, and improving the heating experience of users.
The specific limitation of the control device of the gas water heater can be referred to the limitation of the control method of the gas water heater, and the description thereof is omitted herein. The above-mentioned various modules in the control device of the gas water heater can be implemented by all or part of software, hardware and their combination. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a control device 600 is provided, the control device 600 may be a terminal, and an internal structure thereof may be as shown in fig. 7. The control device 600 comprises a processor, a memory, a communication interface, a display screen and input means connected by a system bus. Wherein the processor of the control device 600 is used to provide computing and control capabilities. The memory of the control device 600 includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the control device 600 is used for performing wired or wireless communication with an external terminal, where the wireless communication may be implemented through WIFI, an operator network, NFC (near field communication), or other technologies. The computer program, when executed by a processor, implements a method of controlling a heatable gas water heater system. The display screen of the control device 600 may be a liquid crystal display screen or an electronic ink display screen, and the input device of the control device 600 may be a touch layer covered on the display screen, or may be a key, a track ball or a touch pad arranged on the casing of the control device 600, or may be an external keyboard, a touch pad or a mouse, etc. It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of a portion of the structure associated with the present application and does not constitute a limitation of the control apparatus 600 to which the present application is applied, and that a particular control apparatus 600 may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, a control device 600 is provided, the control device 600 comprising a memory storing a computer program and a processor implementing the steps of any of the above-described method embodiments when said computer program is executed by the processor.
In one embodiment, as shown in FIG. 1, a gas water heater is provided. The gas water heater comprises a hot water supply combustion heat exchange system 100, a heating combustion heat exchange system 200, a system connecting pipe 300, a bypass pipe 400 and any one of the control equipment 600 in the control equipment embodiment. Wherein, a first end of the system connecting pipe 300 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100, and a second end of the system connecting pipe 300 is connected with the water inlet pipe 201 of the hot water supply combustion heat exchange system 200; the first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100, and the second end of the bypass pipe 400 is used for being connected with the heating return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used to connect the heating return pipe 500. The control device 600 stores a computer program for implementing the steps of any of the method embodiments described above when the computer program is executed.
In this embodiment, the heating combustion heat exchange system 200 and the hot water heating combustion heat exchange system 100 can be linked by the gas water heater, so that when the gas water heater is in a heating mode, the hot water is preheated by the hot water heating combustion heat exchange system 100 and then is subjected to secondary heating by the heating combustion heat exchange system 200, thereby realizing the provision of heating hot water, improving the heating rate and the heating capacity of the gas water heater, and improving the heating experience of users.
In one specific example, as shown in fig. 8, the gas water heater includes: a hot water supply combustion heat exchange system 100, a heating combustion heat exchange system 200, a system connection pipe 300, and a bypass pipe 400; wherein, the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 is connected with the water inlet pipe 201 of the hot water supply combustion heat exchange system 200 through the system connecting pipe 300; the water outlet pipe 202 of the heating combustion heat exchange system 200 is used for connecting the first end of the bypass pipeline 400 and the water inlet pipe 201 of the heating combustion heat exchange system 200 sequentially through the heating water outlet pipe 700 and the heating water return pipe 500; the second end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water supply combustion heat exchange system 100; the water outlet pipe 102 of the hot water combustion heat exchange system 100 is used for being connected to a water point or a hot water outlet pipe 900, and the water inlet pipe 101 of the hot water combustion heat exchange system 100 is used for being connected to a water inlet point or a water heater water inlet pipe 1000; the above is merely a specific example, and is flexibly set according to the user's needs in practical applications, and is not limited herein.
In one embodiment, as shown in FIG. 8, the gas water heater further includes a diverter valve 800; the first end 1 of the steering valve 800 is used for connecting the heating return pipe 500, the second end 2 of the steering valve 800 is connected with the second end of the bypass pipe 400, and the third end of the steering valve 800 is respectively connected with the water inlet pipe 201 of the heating combustion heat exchange system 200 and the second end of the system connecting pipe 300; the steering valve 800 is electrically connected to the control apparatus 600.
In this embodiment, by providing the diverter valve 800 in the gas water heater, it is convenient to control the water in the heating return pipe 500 to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and to control the water in the heating return pipe 500 to stop flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200, so that the convenience of the gas water heater is improved.
In one embodiment, as shown in fig. 8, the gas water heater further comprises a first water flow sensor 1300, a second temperature sensor 1600, a third temperature sensor 1700, and a fourth temperature sensor 1800; wherein the first water flow sensor 1300 is disposed at the water inlet pipe 101 of the hot water supply combustion heat exchange system 100; the second temperature sensor 1600 is arranged at the water outlet pipe 102 of the hot water supply combustion heat exchange system 100; third temperature sensor 1700 is provided in heating return pipe 500; the fourth temperature sensor 1800 is arranged on a water outlet pipe of the heating combustion heat exchange system; the first water flow sensor 1300, the second temperature sensor 1600, the third temperature sensor 1700, and the fourth temperature sensor 1800 are all electrically connected to the control device. In this embodiment, the water flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 can be accurately collected by the first water flow sensor 1300, the water temperature of the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 can be accurately collected by the second temperature sensor 1600, the water temperature of the heating return pipe can be collected by the third temperature sensor 1700, and the water temperature of the water outlet pipe 202 of the heating combustion heat exchange system 200 can be accurately collected by the fourth temperature sensor 1800, so that the convenience of the gas water heater is improved.
In one embodiment, as shown in FIG. 8, the gas water heater further comprises a first temperature sensor 1500 and a second water flow sensor 1400; wherein the first temperature sensor 1500 is arranged on a water inlet pipe of the hot water supply combustion heat exchange system; the second water flow sensor 1400 is disposed on the water inlet pipe 201 of the heating combustion heat exchange system 200 and is located between the second end of the system connection pipe 400 and the water inlet of the heating combustion heat exchange system 200; the first temperature sensor 1500 and the second water flow sensor 1400 are both electrically connected to the control device.
In this embodiment, the water temperature of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 can be collected by the first temperature sensor 1500, and the water flow of the water inlet pipe 202 of the hot water supply combustion heat exchange system 200 can be accurately collected by the second water flow sensor 1400, so that the convenience of the gas water heater can be improved.
In one embodiment, as shown in FIG. 8, the gas water heater further comprises a circulation pump 1100; the circulating pump 1100 is arranged on the water inlet pipe 201 of the heating combustion heat exchange system 200 and is positioned between the second end of the system connecting pipe 400 and the water inlet of the heating combustion heat exchange system 200; the circulation pump 1100 is electrically connected to the control apparatus 600.
In this embodiment, the circulation pump 1100 is disposed through the gas water heater, so that the control device 600 is convenient to start the water in the heating combustion heat exchange system 200 to circulate, thereby improving the convenience of the gas water heater.
In one embodiment, as shown in FIG. 8, the gas water heater further comprises a combustion heat exchange chamber 1900 and a smoke exhaust duct 2000; wherein, the smoke outlet of the combustion heat exchange cavity 1900 is provided with a smoke exhaust pipeline 2000; the heating combustion heat exchange system 200 and the hot water heating combustion heat exchange system 100 are disposed within the combustion heat exchange chamber 1900.
In one particular example, the combustion heat exchange chamber 1900 may be partitioned into a first combustion heat exchange subchamber and a second combustion heat exchange subchamber by a first partition; the first combustion heat exchange subchamber is used for accommodating the hot water supply combustion heat exchange system 100, and the second combustion heat exchange subchamber is used for accommodating the heating combustion heat exchange system 200, so that the phenomenon of gas cross exists between fuel gas is prevented, and the combustion efficiency of the fuel gas water heater is improved. In addition, the second baffle can separate the exhaust gas pipeline 2000 into a first exhaust gas sub-pipeline and a second exhaust gas sub-pipeline, wherein the first exhaust gas sub-pipeline is arranged at a first sub-exhaust port corresponding to the first combustion heat exchange sub-cavity, and the second exhaust gas sub-pipeline is arranged at a second sub-exhaust port corresponding to the second combustion heat exchange sub-cavity, so that the exhaust gas emission efficiency of the gas water heater is improved. The foregoing is merely a specific example, and may be flexibly set according to the user's requirement in practical application, which is not limited herein.
In this embodiment, by arranging the combustion heat exchange cavity 1900 and the smoke exhaust pipeline 2000 in the gas water heater, the gas combustion efficiency of the gas water heater is improved, and the environmental protection capability of the gas water heater is also improved.
In one embodiment, as shown in fig. 9, the gas water heater is a strong drum gas water heater; wherein the strong drum gas water heater further comprises a strong blower 2100; the strong blower 2100 is arranged at the bottom of the combustion heat exchange cavity 1900; the strong blower 2100 is electrically connected to the control device 600. In this embodiment, by providing the strong blower 2100 in the gas water heater, the gas combustion efficiency of the gas water heater is improved, and the exhaust gas discharge capability of the gas water heater is also improved.
In one embodiment, as shown in fig. 10, the gas water heater is a forced draft gas water heater; the forced draft gas water heater also includes a forced draft fan 2200; the gas water heater also comprises a strong exhaust fan 2200; the strong exhaust fan 2200 is arranged at the smoke outlet of the combustion heat exchange cavity 1900; strong suction fan 2200 is electrically connected to control device 600. In this embodiment, the strong exhaust fan 2200 is provided in the gas water heater, so that the gas combustion efficiency of the gas water heater is improved, and the exhaust gas discharge capability of the gas water heater is also improved.
In one embodiment, as shown in FIG. 8, a heating combustion heat exchange system 200 includes: a heating burner 203, a heating heat exchanger 204, and a heating gas regulating valve 205; wherein, the water inlet pipe 201 of the heating combustion heat exchange system 200 is connected with the water outlet pipe 202 of the heating combustion heat exchange system 200 through the heating heat exchanger 204; a first end of the heating gas regulating valve 205 is connected with the heating burner 203, and a second end of the heating gas regulating valve 205 is used for being connected with the gas inlet pipe 2400; the heating burner 203 and the heating gas regulating valve 205 are electrically connected to the control apparatus 600.
In the present embodiment, by providing the heating burner 203, the heating heat exchanger 204, and the heating gas regulating valve 205 in the heating combustion heat exchanging system 200, convenience of the heating combustion heat exchanging system 200 is improved.
In one embodiment, as shown in fig. 8, the hot water combustion heat exchange system 100 includes: a hot water supply burner 103, a hot water supply heat exchanger 104, and a hot water supply gas regulating valve 105; the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 through the hot water supply heat exchanger 104; a first end of the hot water supply gas regulating valve 105 is connected with the hot water supply burner 103, and a second end of the hot water supply gas regulating valve 105 is used for being connected with the gas inlet pipe 2400; the hot water supply burner 103 and the hot water supply gas regulating valve 105 are electrically connected to the control apparatus 600.
In the present embodiment, by providing the hot water burner 103, the hot water heat exchanger 104, and the hot water gas regulating valve 105 in the hot water combustion heat exchange system 100, the convenience of the hot water combustion heat exchange system 100 is improved.
In one embodiment, as shown in FIG. 8, the gas water heater further includes an expansion tank 1200; the expansion tank 1200 is disposed at the outlet pipe 202 of the heating combustion heat exchange system 200.
In the present embodiment, by providing the expansion tank 1200 at the water outlet pipe 202 of the heating combustion heat exchange system 200, the reliability of the gas water heater is improved by accommodating the pressure of the expansion tank 1200 increased by the water temperature at the time of heating of the heating combustion heat exchange system 200.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, implements the steps of any of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A control method of a gas water heater, characterized in that the gas water heater comprises: the system comprises a hot water supply combustion heat exchange system, a heating combustion heat exchange system, a system connecting pipe and a bypass pipeline; the first end of the system connecting pipe is connected with the water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with the water inlet pipe of the hot water supply combustion heat exchange system; the first end of the bypass pipeline is connected with the water inlet pipe of the hot water supply combustion heat exchange system, and the second end of the bypass pipeline is used for connecting a heating return pipe; the water inlet pipe of the heating combustion heat exchange system is used for connecting the heating return pipe; the control method comprises the following steps:
And in response to the fact that the user is not identified to use the hot water and the gas water heater is in a heating mode, starting the hot water supply combustion heat exchange system and the heating combustion heat exchange system to perform combustion heat exchange to perform heating circulation, and controlling water of the heating return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe so that water of the water outlet pipe of the hot water supply combustion heat exchange system flows to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.
2. The control method according to claim 1, wherein the step of controlling the flow of the water of the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises:
acquiring a first water temperature value of the heating return pipe;
controlling water in the heating return pipe to flow to a water inlet pipe of the heating combustion heat exchange system in response to the absolute value of the first target temperature difference value being smaller than or equal to a first preset water temperature difference threshold value, controlling the water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipe, and stopping the heating water combustion heat exchange system from performing combustion heat exchange; the first target temperature difference value is the difference between the first water temperature value and a preset water temperature value.
3. The control method according to claim 2, wherein the preset water temperature value is a heating water temperature value preset by a user.
4. The control method according to claim 2, wherein the step of controlling the flow of water in the heating return pipe to the water inlet pipe of the heating combustion heat exchange system, controlling the flow of water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipe, and stopping the combustion heat exchange of the heating water combustion heat exchange system further comprises:
acquiring a second water temperature value of a water outlet pipe of the heating combustion heat exchange system;
responding to the absolute value of a second target temperature difference value being larger than a second preset water temperature difference threshold value, adjusting the corresponding combustion load of the heating combustion heat exchange system according to the second target temperature difference value, and returning to the step of acquiring the second water temperature value of the water outlet pipe of the heating combustion heat exchange system until the absolute value of the second target temperature difference value is smaller than or equal to the second preset water temperature difference threshold value; the second target temperature difference value is the difference between the second water temperature value and a preset heating temperature value.
5. The control method according to claim 2, wherein the step of controlling the flow of water in the heating return pipe to the water inlet pipe of the heating combustion heat exchange system, controlling the flow of water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipe, and stopping the combustion heat exchange of the heating water combustion heat exchange system further comprises:
in response to identifying that a user uses hot water and the gas water heater is in a heating mode, starting the hot water supply combustion heat exchange system to burn and exchange heat for hot water output, keeping water flow of the heating return water pipeline stopped flowing to a water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and keeping water flow of the heating return water pipeline to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation.
6. The control method according to claim 1, wherein the step of controlling the flow of the water of the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises:
and in response to the recognition that the user uses hot water and the gas water heater is in a heating mode, controlling water in the heating return pipe to stop flowing to the water inlet pipe of the heating water combustion heat exchange system through the bypass pipe, controlling the water in the heating return pipe to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation, and controlling the heating water combustion heat exchange system to perform combustion heat exchange to perform hot water output.
7. The control method according to claim 1, characterized in that the control method further comprises
After the combustion heat exchange of the hot water supply combustion heat exchange system is started to output hot water in response to the fact that the gas water heater is in a hot water supply mode, the combustion heat exchange of the hot water supply combustion heat exchange system is kept to output hot water in response to the fact that the gas water heater is in a heating mode, water flow of a heating return water pipeline is kept to stop flowing to a water inlet pipe of the hot water supply combustion heat exchange system through a bypass pipeline, the combustion heat exchange of the heating combustion heat exchange system is started, and water of the heating return water pipeline is controlled to flow to the water inlet pipe of the heating combustion heat exchange system to conduct heating circulation.
8. The control method according to claim 6, wherein the step of controlling the flow of the water of the heating return pipe to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises:
acquiring the water inflow of a water inlet pipe of the hot water supply combustion heat exchange system;
if the increment of the water inlet flow in the preset time is larger than or equal to an increment threshold value, determining that the user uses hot water.
9. A gas water heater, comprising: the system comprises control equipment, a hot water supply combustion heat exchange system, a heating combustion heat exchange system, a system connecting pipe and a bypass pipeline; the first end of the system connecting pipe is connected with the water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with the water inlet pipe of the hot water supply combustion heat exchange system; the first end of the bypass pipeline is connected with the water inlet pipe of the hot water supply combustion heat exchange system, and the second end of the bypass pipeline is used for connecting a heating return pipe; the water inlet pipe of the heating combustion heat exchange system is used for connecting the heating return pipe; the control device stores a computer program for implementing the steps of the method of any one of claims 1 to 8 when the computer program is executed.
10. The gas water heater of claim 9, further comprising a diverter valve; the first end of the steering valve is used for being connected with the heating return pipe, the second end of the steering valve is connected with the second end of the bypass pipe, and the third end of the steering valve is respectively connected with the water inlet pipe of the heating combustion heat exchange system and the second end of the system connecting pipe; the steering valve is electrically connected with the control device.
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