CN114811947A

CN114811947A - Control method of gas water heater and gas water heater

Info

Publication number: CN114811947A
Application number: CN202210366559.0A
Authority: CN
Inventors: 卢楚鹏; 王作盛; 林招裕; 何意; 张上兵
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-29
Anticipated expiration: 2042-04-08

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 a water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with a water inlet pipe of the heating 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 water return pipe; the water inlet pipe of the heating combustion heat exchange system is used for being connected with a heating water return pipe; the control method comprises the following steps: and responding to the situation that the user does not use 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 heating circulation, and controlling water of the heating water return pipe to flow to a water inlet pipe of the hot water supply combustion heat exchange system through a bypass pipeline. The control method can improve the heating temperature rise speed.

Description

Control method of gas water heater and gas water heater

Technical Field

The present application relates to the field of gas water heaters, and in particular, to a method, an apparatus, a device, a system, a device and a storage medium for controlling a gas water heater.

Background

When bathing in winter, the temperature of the bathroom is low, and particularly under the condition that central heating is not available in the south, people feel cold and can not take a bath comfortably; in order to solve the above problems, a gas water heater capable of heating and supplying hot water has been developed. Among them, the most typical gas water heater capable of heating and supplying hot water is a gas water heater of a dual combustion heat exchange system.

In the prior art, the gas water heater comprises a heating combustion heat exchange system and a hot water combustion heat exchange system, and the heating combustion heat exchange system and the hot water combustion heat exchange system are independently operated. However, the heating temperature rising speed of the gas water heater is slow, so that the heating experience of a user is poor.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a control method of a gas water heater, which can improve the heating temperature rise speed and 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 a gas water heater, which can improve the heating temperature rise speed and 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 a water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with a water inlet pipe of the heating 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 water return pipe; the water inlet pipe of the heating combustion heat exchange system is used for being connected with a heating water return pipe; the control method comprises the following steps:

and responding to the situation that the user does not recognize that the hot water is used by the user 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 heating circulation, and controlling the water of the heating water return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline so as to enable the water flow of the water outlet pipe of the hot water supply combustion heat exchange system to flow to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.

Based on this, through the control method, the heating combustion heat exchange system and the hot water supply combustion heat exchange system can be linked, when the gas water heater is in the heating mode, the hot water supply combustion heat exchange system is used for preheating water and then carrying out secondary heating through the heating combustion heat exchange system, so that the heating hot water is provided, the heating temperature rise 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 water in the heating water return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises the following steps: acquiring a first water temperature value of a heating water return pipe; 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 water in the heating water return pipe to flow to a water inlet pipe of the heating combustion heat exchange system, controlling water in the heating water return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and stopping the hot water supply combustion heat exchange system from carrying out combustion heat exchange; the first target temperature difference value is the difference between the first water temperature value and a preset water temperature value. In this embodiment, under the prerequisite that can guarantee gas heater's the accurate nature of heating temperature, reduced gas heater's energy consumption and use cost, further promoted user's heating and experienced, improved gas heater's energy-conservation nature.

In one embodiment, the preset water temperature value is a hot water supply temperature value preset by a user.

In one embodiment, the step of controlling the water flow in the heating water return pipe to flow to the water inlet pipe of the heating combustion heat exchange system, the step of controlling the water flow in the heating water 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: acquiring a second water temperature value of a water outlet pipe of the heating combustion heat exchange system; responding to the fact that the absolute value of the second target temperature difference is larger than a second preset water temperature difference threshold value, 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 a second water temperature value of a water outlet pipe of the heating combustion heat exchange system until the absolute value of the second target temperature difference is smaller than or equal to the second preset water temperature difference threshold value; and the second target temperature difference value is the difference between the second water temperature value and the preset heating temperature value. In the present embodiment, the convenience of the gas water heater is improved.

In one embodiment, the step of controlling the water flow in the heating water return pipe to flow to the water inlet pipe of the heating combustion heat exchange system, the step of controlling the water flow in the heating water 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: and responding to the recognition that the user uses hot water and the gas water heater is in a heating mode, starting the hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water, keeping the water flow of the heating water return pipeline to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and keeping the water flow of the heating water return pipeline to perform heating circulation to the water inlet pipe of the heating combustion heat exchange system. In the present embodiment, the convenience of the gas water heater is improved.

In one embodiment, the step of controlling the water in the heating water return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises the following steps: and in response to the fact that the user uses hot water and the gas water heater is in a heating mode, controlling water in the heating water return pipe to stop flowing to a water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, controlling water in the heating water return pipe to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation, and controlling the combustion heat exchange of the hot water supply combustion heat exchange system to output hot water. In the present 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 being in a hot water supply mode, after the hot water supply combustion heat exchange system is started to perform combustion heat exchange to output hot water, responding to the gas water heater being in a heating mode, keeping the hot water supply combustion heat exchange system performing combustion heat exchange to output hot water, keeping water flow of the heating water return pipeline to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, starting the heating combustion heat exchange system to perform combustion heat exchange, and controlling the water flow of the heating water return pipeline to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation. In the present embodiment, the convenience of the gas water heater is improved.

In one embodiment, the step of controlling the water in the heating water return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe further comprises the following steps: acquiring the water inlet flow of a water inlet pipe of a hot water supply combustion heat exchange system; and if the increment of the water inlet flow in the preset time is larger than or equal to the increment threshold, determining that the user uses the hot water. In the present embodiment, the convenience of the gas water heater is improved.

The second technical problem is solved by the following technical solutions:

a gas water heater, comprising: the system comprises a control device, 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 a water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with a water inlet pipe of the heating 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 water return pipe; the water inlet pipe of the heating combustion heat exchange system is used for being connected with a heating water 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 water return pipe, the second end of the steering valve is connected with the second end of the bypass pipeline, and the third end of the steering valve is respectively connected with a water inlet pipe of a heating combustion heat exchange system and the second end of a system connecting pipe; the steering valve is electrically connected with the control equipment. In the present embodiment, the convenience of the gas water heater is improved.

Drawings

FIG. 1 is a diagram of an exemplary embodiment of a gas water heater control method;

FIG. 2 is a first 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 control method of the gas water heater in one embodiment;

FIG. 4 is a third flow chart of a control method of the gas water heater according to one embodiment;

FIG. 5 is a fourth schematic flow chart diagram illustrating a method of controlling a gas water heater according to one embodiment;

FIG. 6 is a block diagram showing the structure of a control device of the gas water heater in one embodiment;

FIG. 7 is an internal structural diagram of a control device in one embodiment;

FIG. 8 is a first internal block diagram of the gas water heater in one embodiment;

FIG. 9 is a second internal block diagram of the gas water heater in one embodiment;

FIG. 10 is a third internal block diagram of the 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 is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application 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 present 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, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. 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. The first resistance and the second resistance are both resistances, but they are not the same resistance.

It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

The embodiment of the application provides a control method, a control device, a gas water heater and a storage medium of the gas water heater, a heating combustion heat exchange system and a hot water supply combustion heat exchange system can be linked, the gas water heater is enabled to use the hot water supply combustion heat exchange system to preheat water and then carry out secondary heating through the heating combustion heat exchange system when in a heating mode, and therefore the supply of heating hot water is achieved, the heating temperature rise speed and the heating capacity of the gas water heater are improved, and the heating experience of a user is improved.

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 particular 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 heating combustion heat exchange system 200; a first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water combustion heat exchange system 100, and a second end of the bypass pipe 300 is connected with the heating water return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used for connecting the heating water return pipe 500. The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein. In addition, the control method of the gas water heater provided by the present application can be applied to the control device 600 of the gas water heater as shown in fig. 1.

In one embodiment, as shown in fig. 2, a control method of a gas water heater is provided, which comprises step 201.

Step 201, in response to that the user uses 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 heating circulation through combustion heat exchange, and controlling water of the heating water 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.

Under the condition that the control device 600 of the gas water heater does not recognize that the user uses hot water and the gas water heater is in the heating mode, it is also described that at this time, not only the user needs to heat in the heating mode selected by the gas water heater, but also the user does not need to obtain hot water through the hot water supply combustion heat exchange system 100, so that the control device can start the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform combustion heat exchange to perform heating circulation; meanwhile, the control device 600 controls the water in the heating water 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, and at this time, the water in the heating water return pipe 500 stops flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200. At this time, the water of the heating water return pipe 500 flows 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 to the heating water return pipe 500, so that the water paths of the heating combustion heat exchange system 200 and the hot water combustion heat exchange system 100 can be connected in series.

Because the hot water supply combustion heat exchange system and the heating combustion heat exchange system in the traditional gas water heater are operated independently, but the combustion loads of the corresponding hot water supply combustion heat exchange system and the corresponding heating combustion heat exchange system are fixed, if the heating capacity of the traditional gas water heater is increased, the configuration of the corresponding heating combustion heat exchange system can only be increased.

The control device 600 controls the water in the heating water 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 water 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 heating combustion heat exchange system 200 are started to perform combustion heat exchange to perform heating circulation, that is, water in the heating water 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, is preheated through the hot water supply combustion heat exchange system 100, 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 heating combustion heat exchange system 200, is secondarily heated through the heating combustion heat exchange system 200, then flows through the water outlet pipe 202 of the heating combustion heat exchange system 200, the heating water outlet pipe 700, the heating 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, so that the waterway circulation linkage of the heating combustion heat exchange system 200 and the hot water supply combustion heat exchange system 100 is realized, and under the condition that the corresponding configuration of the heating combustion heat exchange system 200 is not required, the heating and warming speed and the heating capacity of the gas water heater are improved, the heating cost is reduced, and the heating experience of a user is improved.

It should be noted that, the specific control method 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 any way.

In a specific example, starting the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform the heating cycle includes starting the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform the combustion heat exchange and starting the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform the water cycle.

Wherein, heating burning heat transfer system 200 includes: the heating gas regulating valve is connected with the heating gas heat exchanger; 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 connecting a gas inlet pipe; the heating burner and the heating gas regulating valve are electrically connected with the control device 600. The hot water supply 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; wherein, a water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with a 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 a hot water supply burner, and the second end of the hot water supply gas regulating valve is used for connecting a gas inlet pipe; the hot water supply burner and the hot water supply gas regulating valve are electrically connected to the control device 600. The control device 600 may control the initial ignition gas amount through the heating gas adjusting valve and the hot water supply gas adjusting valve, and ignite by controlling the heating burner and the hot water supply burner, so as to start the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 to perform combustion heat exchange.

Wherein, through set up the circulating pump in gas heater. Wherein, the circulating pump sets up between the third end of diverter valve and the inlet tube 201 of heating burning heat transfer system 200, and circulating pump electricity connects controlgear 600. The control equipment can realize the circulation of water in the heating combustion heat exchange system 200 by starting the circulating pump. Under the condition that the control device 600 controls the water in the heating water 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 in the heating combustion heat exchange system 200 is started to circulate, that is, the water in the hot water supply combustion heat exchange system 100 and the water in the heating combustion heat exchange system 200 are started to circulate at the same time.

The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein.

It should be noted that the present invention does not limit the specific control method of the control device 600 for controlling the water in the heating water return 500 to flow to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400.

In one particular example, a diverter valve may be provided in a gas water heater. Wherein, the first end of the steering valve is used for connecting with a heating return pipe 500, the second end of the steering valve is connected with the second end of the bypass pipeline 400, and the third end of the steering valve is connected with a water inlet pipe 101 of the hot water combustion heat exchange system 100; the steering valve is electrically connected to the control apparatus 600. That is, when it is not recognized that the user uses hot water and the gas water heater is in the heating mode, the control device 600 controls the steering valve to guide the connection between the heating water return pipe 500 and the bypass pipe 400, and then cuts off the connection between the heating water return pipe 500 and the water inlet pipe 201 of the heating combustion heat exchange system 200, so that the water in the heating water 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 the water in the heating water return pipe 500 stops flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200. The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein.

On the basis of the application of the gas water heater additionally provided with the system connecting pipe 300 and the bypass pipeline 400, the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 are started to perform heating circulation by responding to the situation that no user uses hot water and the gas water heater is in a heating mode, and water of the heating water return pipe 500 is controlled to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipeline 400, so that water of the water outlet pipe 101 of the hot water supply combustion heat exchange system 100 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200 through the system connecting pipe 300; also get up heating burning heat transfer system 200 and the linkage of heat supply water burning heat transfer 100 systems, use heat supply water burning heat transfer system 100 to preheat water after again heating burning heat transfer system 200 and carry out the secondary heating when making gas heater be in the heating mode to realize the hot water supply of heating, also improved gas heater's heating programming rate and heating ability, promoted user's heating experience.

In one embodiment, as shown in fig. 3, the step of controlling the water in the heating water return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipe further includes step 202 and step 203.

Step 202, obtaining a first water temperature value of the heating water return pipe.

The control device 600 of the gas water heater may obtain the first water temperature value of the heating water return pipe 500 after controlling the water in the heating water 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. It should be noted that the present invention is not limited in any way to the specific control method of the control device 600 for obtaining the first water temperature value of the heating water return pipe 500. In a specific example, the first water temperature value may be collected by providing a third temperature sensor disposed between the first end of the steering valve and the heating water return, 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 water return 500 through the third temperature sensor. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.

And step 203, in response to that the absolute value of the first target temperature difference is smaller than or equal to a first preset water temperature difference threshold, controlling water in the heating water return pipe to flow to a water inlet pipe of the heating combustion heat exchange system, controlling water in the heating water return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and stopping the hot water supply 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. In one embodiment, the preset water temperature value is a hot water supply temperature value preset by a user. It will be appreciated that the preset water usage temperature value may be, but is not limited to, a water usage temperature value set by a user via a gas water heater.

After obtaining the first water temperature value of the heating water return pipe 500, the control device 600 may calculate a first target temperature difference value according to the first water temperature value and a preset water temperature value; moreover, under the condition that the absolute value of the first target temperature difference is less than or equal to the first preset water temperature difference threshold, that is, under the condition that the water temperature value of the heating water return pipe 500 is equivalent to the preset water temperature value at this time, it is described that the current gas water heater has already rapidly provided the water temperature equivalent to the preset water temperature value in the heating water return pipe 500, and the hot water supply combustion heat exchange system 100 needs to be stopped in time to perform combustion heat exchange, so as to avoid the scald safety accident caused when the user suddenly uses hot water due to the overhigh water temperature in the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 at this time; therefore, the control device 600 controls the water in the heating water 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 water 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, that is, at this time, the water in the heating water return pipe 500 does not flow through the water inlet pipe 101 of the hot water combustion heat exchange system 100, the hot water heat exchanger 104 and the water outlet pipe 102 of the hot water combustion heat exchange system 100 through the bypass pipe 400 any more, but the water in the heating water 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, the heating water outlet pipe 700 to the heating water return pipe 500, and the water paths of the heating combustion heat exchange system 200 and the hot water combustion heat exchange system 100 can be cut off in series. Meanwhile, the hot water supply combustion heat exchange system 100 is stopped to perform combustion heat exchange, so that the condition 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 safety accident that a user is scalded because the user suddenly needs to output hot water through the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 at the moment is also prevented.

In this embodiment, on the premise of ensuring the accurate heating temperature 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 scalding safety accidents caused by the fact that hot water is suddenly output through the water outlet pipe 102 of the hot water supply combustion heat exchange system 100, so that the safety and the energy saving performance of the gas water heater are improved.

It should be noted that, the present invention does not limit the specific control manner of the water inlet pipe 201 of the control device 600 controlling the water in the heating water return pipe 500 to flow to the heating combustion heat exchange system 200; meanwhile, the specific control manner for controlling the water flow of the heating water 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 particular example, a diverter valve may be provided in a gas water heater. Wherein, the first end of the steering valve is used for connecting with a heating water return pipe 500, the second end of the steering valve is connected with the second end of the bypass pipeline 400, and the third end of the steering valve is connected with a water inlet pipe 101 of the hot water combustion heat exchange system 100; the steering valve is electrically connected to the control apparatus 600. That is, in the case that the absolute value of the first target temperature difference is less than or equal to the first preset water temperature difference threshold value, the control device 600 controls the steering valve to cut off the connection between the heating water return pipe 500 and the bypass pipe 400 and to conduct the connection between the heating water return pipe 500 and the water inlet pipe 201 of the heating combustion heat exchange system 200, so as to control the water in the heating water return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 and control the water in the heating water return pipe 500 to stop flowing to the water inlet pipe 101 of the heating combustion heat exchange system 100 through the bypass pipe 400. The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein.

It should be noted that, the present invention does not limit any specific control manner for the control device 600 to stop the hot water supply combustion heat exchange system to perform combustion heat exchange.

In one particular 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; wherein, a water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with a 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 a hot water supply burner, and the second end of the hot water supply gas regulating valve is used for connecting a gas inlet pipe; the hot water supply burner and the hot water supply gas regulating valve are electrically connected to the control device 600. The control device 600 can control the gas quantity to be 0 through the hot water supply gas regulating valve, and can also close the hot water supply burner, so as to stop the hot water supply combustion heat exchange system to perform combustion heat exchange. The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein.

In one embodiment, as shown in fig. 3, the steps of controlling the water in the heating water return to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water in the heating water return to stop flowing to the water inlet pipe of the heating combustion heat exchange system through the bypass pipe, and stopping the combustion heat exchange of the heating combustion heat exchange system further include

steps

204 and 205.

And 204, acquiring a second water temperature value of a water outlet pipe of the heating combustion heat exchange system.

After the step of controlling the water in the heating water return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, controlling the water in the heating water 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, and stopping the hot water supply combustion heat exchange system 100 from performing combustion heat exchange, the control device 600 of the gas water heater acquires 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 present invention does not limit any specific control manner for 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. In a specific example, the second water temperature value may be collected by a fourth temperature sensor disposed on the water outlet pipe 202 of the heating combustion heat exchange system 200, so that the control device 600 may obtain the second water temperature value by the fourth temperature sensor. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.

Step 205, in response to that the absolute value of the second target temperature difference is 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.

And the second target temperature difference value is the difference between the second water temperature value and the 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 a 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, under the condition 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 at this time is not equivalent 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 step of obtaining the second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 is returned to 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 heating temperature accuracy of the gas water heater is improved, and the heating experience of a user is further improved.

In this embodiment, a 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 combustion load corresponding to the heating combustion heat exchange system 200 according to the second target temperature difference, and returning to the step of obtaining a second water temperature value of the water outlet pipe 202 of the heating combustion heat exchange system 200 after a 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; under the prerequisite that has just also realized guaranteeing gas heater's accurate nature of heating temperature, reduced gas heater's energy consumption and use cost, further promoted user's heating and experienced, improved gas heater's convenience.

It should be noted that the specific control method of the control device 600 for adjusting the combustion load corresponding to the heating combustion heat exchange system 200 is not limited in any way.

In one particular example, the gas water heater further comprises a strong air extractor; the strong air extractor is arranged at the smoke outlet of the combustion heat exchange cavity; the strong air extractor is electrically connected with the control equipment. And/or, the gas water heater also comprises a strong blower; the strong blower is arranged at the bottom of the combustion heat exchange cavity; the strong air blower is electrically connected with the control equipment. Under the condition 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 at this time is not appropriate to the preset heating temperature value, it is indicated that the combustion load corresponding to the last heating combustion heat exchange system needs to be adjusted, and therefore 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 combustion load corresponding to the heating combustion heat exchange system 200 can be adjusted by specifically controlling the heating gas regulating valve to adjust the corresponding gas amount through the control device 600, and the air content in the combustion heat exchange cavity can be adjusted by controlling the strong air extractor and/or the strong air blower through the control device. In addition, different types of gas water heaters are tested before leaving the factory, and a mapping relation list of different second target temperature difference values and 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 difference values, and adjust the combustion loads corresponding to the heating combustion heat exchange system 200 according to the search result. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.

In one embodiment, as shown in fig. 4, the step of controlling the water in the heating water return to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water in the heating water return to stop flowing to the water inlet pipe of the heating combustion heat exchange system through the bypass pipe, and stopping the heating combustion heat exchange system from performing combustion heat exchange further includes a step 206.

And step 206, in response to the fact that the user uses hot water and the gas water heater is in a heating mode, starting a hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water, keeping the water flow of the heating water return pipeline to stop flowing to a water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and keeping the water flow of the heating water return pipeline to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation.

When step 203 is executed, the control device 600 of the gas water heater controls water in the heating water return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, controls water in the heating water 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, and stops the hot water supply combustion heat exchange system 100 from performing combustion heat exchange under the condition that the absolute value of the first target temperature difference is less than or equal to the first preset water temperature difference threshold value, that is, the water temperature value of the heating water return pipe 500 at this time is equivalent to the preset water temperature value, so as to prevent the water temperature in the water outlet pipe 102 of the hot water supply combustion heat exchange system 100 from being higher than the preset water temperature value; then, when recognizing that the user uses hot water and the gas water heater is in the heating mode, the control device 600 restarts the combustion heat exchange of the hot water supply combustion heat exchange system 100 that has stopped performing combustion heat exchange and outputs hot water; meanwhile, the heating circulation is performed by stopping the flow of the water in the heating return pipe 500 to the inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass flow 400 and by maintaining the flow of the water in the heating return pipe 500 to the inlet pipe 201 of the heating combustion heat exchange system 200.

It can be understood that, under the condition that the water flow of the heating water return pipeline 500 stops flowing to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipeline flow 400, the water of the heating water return pipeline 500 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200, and then flows through the water outlet pipe 202 of the heating combustion heat exchange system 200, the heating water outlet pipe 700 to the heating water 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 also realized. Meanwhile, since the water flow of the heating water return pipeline 500 stops flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipeline flow 400, and it is recognized that the user uses hot water, the water in the water inlet pipe 1000 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 for combustion heat exchange, and hot water is output through the water outlet pipe 102 and the hot water outlet pipe 900 of the hot water combustion heat exchange system 100 after the combustion heat exchange, so that the hot water output is realized when the hot water supply combustion heat exchange system 100 operates alone.

In this embodiment, after the steps of controlling the water in the heating water return pipe 500 to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200, controlling the water in the heating water 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, and stopping the combustion heat exchange of the hot water supply combustion heat exchange system 100 are performed, if it is recognized that the user uses hot water and the gas water heater is in the heating mode, the hot water supply combustion heat exchange system 100 is started to perform combustion heat exchange to perform hot water output, and the water in the heating water return pipe 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 pipe 400, so that the hot water combustion heat exchange system 100 operates alone to perform hot water output; meanwhile, the water of the heating water return pipeline 500 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200, so that the heating combustion heat exchange system 200 is 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 water in the heating water return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipe further includes step 207.

And step 207, in response to the fact that the user uses hot water and the gas water heater is in a heating mode, controlling water in the heating water return pipe to stop flowing to a water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, controlling water in the heating water return pipe to flow to the water inlet pipe of the heating combustion heat exchange system for heating circulation, and controlling the hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water.

When the control device 600 of the gas water heater executes step 201, controlling water in the heating water 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 secondarily heating the water by using the heating combustion heat exchange system 200; at this time, if it is recognized that the user uses hot water and is in a heating mode, in order to ensure that the hot water supply combustion heat exchange system 100 of the gas water heater can output hot water in time, the water in the heating water return pipe 500 needs to be controlled to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and the water in the heating water return pipe 500 is controlled to flow to the water inlet pipe 101 of the heating combustion heat exchange system 200; at this time, the water of the heating water return pipe 500 flows to the water inlet pipe 201 of the heating combustion heat exchange system 200, and then 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 water return pipe 500 after being heated by the heating combustion heat exchange system 200, so that the heating circulation when the heating combustion heat exchange system 200 operates alone is also realized. Meanwhile, since the water flow of the heating water return pipeline 500 stops flowing to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipeline flow 400, and it is recognized that the user uses hot water, the water in the water inlet pipe 1000 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 for combustion heat exchange, and hot water is output through the water outlet pipe 102 and the hot water outlet pipe 900 of the hot water combustion heat exchange system 100 after the combustion heat exchange, so that the hot water output is realized when the hot water supply combustion heat exchange system 100 operates alone.

In this embodiment, after the step of controlling the water in the heating water 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 performed, if it is recognized that the user uses hot water and the gas water heater is in the heating mode, the water in the heating water return pipe 500 is controlled to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, and the water in the heating water return pipe 500 is controlled 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 supply combustion heat exchange system 100 is controlled to perform combustion heat exchange to output hot water, so that the independent operation of the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 is realized, the phenomenon that the hot water supply combustion heat exchange system 100 cannot output hot water in time when the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 are used for heating circulation is avoided, and the reliability and the convenience of gas hot water are improved.

In one embodiment, as shown in fig. 4, the control method further includes step 208.

And step 208, responding to the situation that the gas water heater is in a hot water supply mode, starting a hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water, responding to the situation that the gas water heater is in a heating mode, keeping the hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water, keeping water flow of a heating water return pipeline to stop flowing to a water inlet pipe of the hot water supply combustion heat exchange system through a bypass pipeline, starting the heating combustion heat exchange system to perform combustion heat exchange, and controlling the water flow of the heating water return pipeline to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation.

Before the step 201 is executed, the control device 600 of the gas water heater recognizes that the gas water heater is only in the hot water supply mode, and then needs to control the water in the heating water 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 the water in the heating water 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 the independent operation is realized to output hot water through the hot water supply outlet pipe 900; then, in the process that the gas water heater operates alone through the hot water supply combustion heat exchange system 100 and outputs hot water through the hot water supply outlet pipe 900, when the gas water heater is identified to be in the heating mode, the hot water supply combustion heat exchange system 100 is kept burning heat exchange to output hot water, the water flow of the heating water return pipeline 500 is kept stopping 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, meanwhile, the water flow of the heating water return pipeline 500 is controlled to flow to the water inlet pipe 201 of the heating combustion heat exchange system 200 to perform heating circulation, and therefore heating circulation when the heating combustion heat exchange system 200 operates alone is achieved.

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 output hot water, and when 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 output hot water, and the water flow of the heating water 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, the heating combustion heat exchange system 200 is started to perform combustion heat exchange, and the water flow of the heating water return 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 whether a user needs to perform heating in time is identified in the process that the hot water combustion heat exchange system 100 of the gas water heater performs independent operation to output hot water, and in the case that the user selects the heating mode through the gas water heater, the heating combustion heat exchange system 200 performs independent operation to perform the timely heating circulation, the convenience of gas hot water is improved, and the user experience of the gas water heater is improved.

It should be noted that the present invention does not limit how the control device 600 recognizes the specific control manner of the user to use hot water.

In one embodiment, as shown in fig. 5, the step of controlling the water in the heating water return pipe to flow to the water inlet pipe of the hot water combustion heat exchange system through the bypass pipe further includes step 209 and step 210.

And step 209, acquiring the water inlet flow of the water inlet pipe of the hot water supply combustion heat exchange system.

In step 210, if the increment of the water inlet flow in the preset time is larger than or equal to the increment threshold, it is determined that the user uses hot water.

In this case, when the water in the heating water return pipe 500 is controlled to flow to the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 through the bypass pipe 400, it is described that the hot water supply combustion heat exchange system 100 and the heating combustion heat exchange system 200 are required to perform a heating cycle at the same time, so that the inflow rate of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 needs to be acquired. Since the inflow rate of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is not 0 when the heating cycle is performed, whether the user uses hot water is determined by judging whether the increment of the inflow rate of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 in the preset time is greater than or equal to the increment threshold. And, in the case that the increment of the inlet water flow of the inlet pipe 101 of the hot water supply combustion heat exchange system 100 in the preset time is larger than or equal to the increment threshold, it is determined that the user uses hot water. On the contrary, in the case that the increment of the water inlet flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 in the preset time is smaller than the increment threshold, it is determined that the user is not identified to use hot water.

In this embodiment, in the case of controlling the water in the heating water 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, under the condition that the increment of the water inlet flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 in the preset time is larger than or equal to the increment threshold, the hot water use of the user is determined and identified, and the convenience of the gas water heater is improved.

In a specific example, in the case that the water in the heating water return pipe 500 is controlled to stop flowing to the water inlet pipe 101 of the hot water combustion heat exchange system 100 through the bypass pipe 400, it is described that only the heating combustion heat exchange system 200 is operated alone to perform the heating cycle. At this time, the water inlet flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 may be obtained, and when the obtained water inlet flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is greater than or equal to the starting hot water flow threshold value, it is determined that the user uses hot water. On the contrary, when the water inlet flow of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is smaller than the starting hot water flow threshold, it is determined that the user does not recognize the use of hot water. The above is only a specific example, and the setting is flexible according to the user requirement in practical application, and is not limited herein.

It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the other steps or stages.

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 heating 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 heating combustion heat exchange system 200; a first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water combustion heat exchange system 100, and a second end of the bypass pipe 300 is connected with the heating water return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used for connecting the heating water return pipe 500. The control device includes a first control module 6100.

Wherein, first control module 6100 is used for responding to unidentified user use hot water and gas heater is in the heating mode, start the burning heat transfer of heat supply water burning heat transfer system and heating burning heat transfer system and carry out the heating circulation, and the water of control heating wet return passes through the inlet tube of bypass pipe flow direction heat supply water burning heat transfer system to the rivers that make the outlet pipe of heat supply water burning heat transfer system flow to the inlet tube of heating burning heat transfer system through the system connection pipe.

In this embodiment, controlling means through above-mentioned gas heater system can get up heating burning heat transfer system 200 and the linkage of heat supply water burning heat transfer 100 systems, uses heat supply water burning heat transfer system 100 to preheat water after again heating burning heat transfer system 200 and carry out the secondary heating when making gas heater be in the heating mode to realize the hot-water supply of heating, also improved gas heater's heating programming rate and heating capacity, promoted user's heating experience.

For specific limitations of the control device of the gas water heater, reference may be made to the above limitations of the control method of the gas water heater, which are not described herein again. The modules in the control device of the gas water heater can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a control device 600 is provided, the control device 600 may be a terminal, and the internal structure thereof may be as shown in fig. 7. The control apparatus 600 includes a processor, a memory, a communication interface, a display screen, and an input device connected through 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the control device 600 is used for performing wired or wireless communication with an external terminal, and the wireless communication may be implemented by WIFI, an operator network, NFC (near field communication), or other technologies. The computer program is executed by a processor to implement 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, a key, a trackball or a touch pad arranged on a casing of the control device 600, or an external keyboard, a touch pad or a mouse. It will be understood by those skilled in the art that the structure shown in fig. 7 is a block diagram of only a portion of the structure associated with the present application, and does not constitute a limitation on the control device 600 to which the present application is applied, and that a particular control device 600 may include more or less components than those shown, or 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 executing said computer program.

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 pipeline 400 and any control device 600 in the control device 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 heating combustion heat exchange system 200; a first end of the bypass pipe 400 is connected with the water inlet pipe 101 of the hot water combustion heat exchange system 100, and a second end of the bypass pipe 300 is connected with the heating water return pipe 500; the water inlet pipe 201 of the heating combustion heat exchange system 200 is used for connecting the heating water return pipe 500. The control device 600 stores a computer program for implementing the steps of any of the above-described method embodiments when executing the computer program.

In this embodiment, can get up heating burning heat transfer system 200 and the linkage of heat supply water burning heat transfer 100 systems through above-mentioned gas heater, use heat supply water burning heat transfer system 100 to preheat water after and carry out the secondary heating through heating burning heat transfer system 200 when making gas heater be in the heating mode to realize the hot-water supply of heating, also improved gas heater's heating programming rate and heating ability, promoted user's heating experience.

In one specific example, as shown in fig. 8, a gas water heater includes: a hot water supply combustion heat exchange system 100, a heating combustion heat exchange system 200, a system connecting 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 heating combustion heat exchange system 200 through a system connecting pipe 300; the water outlet pipe 202 of the heating combustion heat exchange system 200 is used for being connected with 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 pipeline 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 supply combustion heat exchange system 100 is used for being connected to a water using point or a hot water supply water outlet pipe 900, and the water inlet pipe 101 of the hot water supply 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 only a specific example, and the setting is flexible according to the user requirement in practical application, and is not limited herein.

In one of the embodiments, as shown in fig. 8, the gas water heater further includes a diverter valve 800; a first end 1 of the steering valve 800 is used for being connected with the heating water return pipe 500, a second end 2 of the steering valve 800 is connected with a second end of the bypass pipeline 400, and a third end of the steering valve 800 is respectively connected with a water inlet pipe 201 of the heating combustion heat exchange system 200 and a second end of the system connecting pipe 300; the steering valve 800 is electrically connected to the control apparatus 600.

In this embodiment, the gas water heater is provided with the steering valve 800, so that the water in the heating water return pipe 500 is controlled 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 water return pipe 500 is controlled to stop flowing to the water inlet pipe 201 of the heating combustion heat exchange system 200, thereby improving the convenience of the gas water heater.

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; the first water flow sensor 1300 is arranged on the water inlet pipe 101 of the hot water supply combustion heat exchange system 100; the second temperature sensor 1600 is arranged on the water outlet pipe 102 of the hot water supply combustion heat exchange system 100; the third temperature sensor 1700 is arranged on the 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 with 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 through 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 through the second temperature sensor 1600, the water temperature of the heating water return pipe can be collected through the third temperature sensor 1700, the water temperature of the water outlet pipe 202 of the heating combustion heat exchange system 200 can be accurately collected through the fourth temperature sensor 1800, and the convenience of the gas water heater is also 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 the 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 first temperature sensor 1500 can collect the water temperature of the water inlet pipe 101 of the hot water supply combustion heat exchange system 100, and the second water flow sensor 1400 can accurately collect the water flow of the water inlet pipe 202 of the heating combustion heat exchange system 200, so that the convenience of the gas water heater can be accurately collected.

In one embodiment, as shown in FIG. 8, the gas water heater further includes a circulation pump 1100; wherein, the circulation pump 1100 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 circulation pump 1100 is electrically connected to the control apparatus 600.

In this embodiment, the gas water heater is provided with the circulating pump 1100, so that the control device 600 starts 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 exhaust port of the combustion heat exchange cavity 1900 is provided with a smoke exhaust pipe 2000; the heating combustion heat exchange system 200 and the hot water combustion heat exchange system 100 are disposed in the combustion heat exchange cavity 1900.

In one particular example, combustion heat-exchange chamber 1900 may be divided into a first combustion heat-exchange subchamber and a second combustion heat-exchange subchamber by a first partition; the first combustion heat exchange sub-cavity is used for accommodating a hot water supply combustion heat exchange system 100, and the second combustion heat exchange sub-cavity is used for accommodating a heating combustion heat exchange system 200, so that the phenomenon of gas cross connection between gas is prevented, and the combustion efficiency of the gas water heater is improved. In addition, the second baffle can separate exhaust pipe 2000 for first exhaust sub-pipeline and second exhaust sub-pipeline, and first exhaust sub-pipeline sets up in the first sub-exhaust port that first combustion heat transfer sub-cavity corresponds, and the second exhaust sub-pipeline sets up in the second sub-exhaust port that second combustion heat transfer sub-cavity corresponds, is favorable to improving gas heater's exhaust emission efficiency. The above is only a specific example, and in practical applications, the setting can be flexibly set according to user requirements, and is not limited herein.

In this embodiment, the gas water heater is provided with the combustion heat exchange cavity 1900 and the smoke exhaust pipe 2000, so that 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 forced-draft gas water heater; wherein the strong drum gas water heater further comprises a strong blower 2100; strong blower 2100 is disposed at the bottom of combustion heat exchange chamber 1900; the strong blower 2100 is electrically connected to the control apparatus 600. In this embodiment, the strong blower 2100 is provided to the gas water heater, so that the gas combustion efficiency of the gas water heater is improved, and the exhaust emission capacity of the gas water heater is also improved.

In one embodiment, as shown in fig. 10, the gas water heater is a strong pumping gas water heater; the strong pumping type gas water heater also comprises a strong pumping fan 2200; the gas water heater further comprises a strong air draft fan 2200; the strong air blower 2200 is arranged at the smoke outlet of the combustion heat exchange cavity 1900; the strong air blower 2200 is electrically connected to the control device 600. In this embodiment, the strong air exhaust 2200 is arranged on the gas water heater, so that the gas combustion efficiency of the gas water heater is improved, and the exhaust emission capacity of the gas water heater is also improved.

In one embodiment, as shown in fig. 8, the heating combustion heat exchange system 200 includes: a heating burner 203, a heating heat exchanger 204, and a heating gas adjusting 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; the first end of the heating gas regulating valve 205 is connected with the heating burner 203, and the second end of the heating gas regulating valve 205 is used for being connected with a gas inlet pipe 2400; the heating burner 203 and the heating gas adjusting valve 205 are electrically connected to the control device 600.

In the present embodiment, the heating burner 203, the heating heat exchanger 204, and the heating gas control valve 205 are provided in the heating combustion heat exchange system 200, thereby improving the convenience of the heating combustion heat exchange system 200.

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 adjusting valve 105; wherein, a water inlet pipe 101 of the hot water supply combustion heat exchange system 100 is connected with a water outlet pipe 102 of the hot water supply combustion heat exchange system 100 through a 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 a gas inlet pipe 2400; the hot water supply burner 103 and the hot water supply gas adjusting valve 105 are electrically connected to the control device 600.

In the present embodiment, the hot water supply burner 103, the hot water supply heat exchanger 104, and the hot water supply gas adjustment valve 105 are provided in the hot water supply combustion heat exchange system 100, thereby improving the convenience of the hot water supply combustion heat exchange system 100.

In one embodiment, as shown in fig. 8, the gas water heater further comprises an expansion tank 1200; the expansion tank 1200 is disposed on the water outlet pipe 202 of the heating combustion heat exchange system 200.

In this embodiment, the expansion tank 1200 is provided in the water outlet pipe 202 of the heating combustion heat exchange system 200, so that the expansion tank 1200 accommodates the pressure increased by the water temperature during heating in the heating combustion heat exchange system 200, thereby improving the reliability of the gas water heater.

In an embodiment, a computer-readable storage medium is provided, having stored thereon a computer program, which when executed by a processor, carries out the steps of any of the above-mentioned method embodiments.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

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 a water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with a water inlet pipe of the heating 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 water return pipe; the water inlet pipe of the heating combustion heat exchange system is used for being connected with the heating water return pipe; the control method comprises the following steps:

responding to the situation that a user does not recognize that the user uses 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 perform heating circulation through combustion heat exchange, and controlling the water of the heating water return pipe to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline so as to enable the water of the water outlet pipe of the hot water supply combustion heat exchange system to flow to the water inlet pipe of the heating combustion heat exchange system through the system connecting pipe.

2. The method of claim 1, wherein the step of controlling the water of the heating water return to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe is further followed by:

acquiring a first water temperature value of the heating water return pipe;

responding to the fact that the absolute value of a first target temperature difference value is smaller than or equal to a first preset water temperature difference threshold value, controlling water in the heating water return pipe to flow to a water inlet pipe of the heating combustion heat exchange system, controlling water in the heating water return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and stopping the hot water supply combustion heat exchange system from carrying out combustion heat exchange; and 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 hot water supply temperature value preset by a user.

4. The control method according to claim 2, wherein the step of controlling the water in the heating water return to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water in the heating water return 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 from performing combustion heat exchange further comprises:

acquiring a second water temperature value of a water outlet pipe of the heating combustion heat exchange system;

responding to the fact that the absolute value of a second target temperature difference value is larger than a second preset water temperature difference threshold value, adjusting the combustion load corresponding to the heating combustion heat exchange system according to the second target temperature difference value, and returning to the step of obtaining a second water temperature value of a 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; and 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 water in the heating water return to flow to the water inlet pipe of the heating combustion heat exchange system, controlling the water in the heating water return 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 from performing combustion heat exchange is further followed by the step of:

and responding to the recognition that the user uses hot water and the gas water heater is in a heating mode, starting the hot water supply combustion heat exchange system to perform combustion heat exchange to output hot water, keeping the water flow of the heating water return pipeline to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, and keeping the water flow of the heating water return pipeline to perform heating circulation to the water inlet pipe of the heating combustion heat exchange system.

6. The method of claim 1, wherein the step of controlling the water of the heating water return to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe is further followed by:

and responding to the recognition that the user uses hot water and the gas water heater is in a heating mode, controlling the water in the heating water return pipe to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, controlling the water in the heating water return pipe to flow to the water inlet pipe of the heating combustion heat exchange system to perform heating circulation, and controlling the combustion heat exchange of the hot water supply combustion heat exchange system to perform hot water output.

7. The control method according to claim 1, characterized in that the control method further comprises

Responding to the gas water heater is in a hot water supply mode, starting the hot water supply combustion heat exchange system for combustion heat exchange to output hot water, responding to the gas water heater is in a heating mode, keeping the hot water supply combustion heat exchange system for combustion heat exchange to output hot water, keeping the water flow of the heating water return pipeline to stop flowing to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipeline, starting the heating combustion heat exchange system for combustion heat exchange, and controlling the water flow of the heating water return pipeline to perform heating circulation on the water inlet pipe of the heating combustion heat exchange system.

8. The method of claim 6, wherein the step of controlling the water of the heating water return to flow to the water inlet pipe of the hot water supply combustion heat exchange system through the bypass pipe is further followed by:

acquiring the water inlet flow of a water inlet pipe of the hot water supply combustion heat exchange system;

and if the increment of the water inlet flow in the preset time is larger than or equal to the increment threshold, determining that the user uses hot water.

9. A gas water heater, comprising: the system comprises a control device, 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 a water outlet pipe of the hot water supply combustion heat exchange system, and the second end of the system connecting pipe is connected with a water inlet pipe of the heating 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 water return pipe; the water inlet pipe of the heating combustion heat exchange system is used for being connected with the heating water 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 executing the computer program.

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 water return pipe, the second end of the steering valve is connected with the second end of the bypass pipeline, 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 equipment.