CN114383325A - Gas leakage prevention device, gas water heater and control method and device of gas water heater - Google Patents
Gas leakage prevention device, gas water heater and control method and device of gas water heater Download PDFInfo
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- CN114383325A CN114383325A CN202210044881.1A CN202210044881A CN114383325A CN 114383325 A CN114383325 A CN 114383325A CN 202210044881 A CN202210044881 A CN 202210044881A CN 114383325 A CN114383325 A CN 114383325A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000002265 prevention Effects 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 23
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 280
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
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- 239000003345 natural gas Substances 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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Abstract
The invention discloses an air leakage prevention device, a gas water heater and a control method and device of the gas water heater. Wherein, the method comprises the following steps: acquiring a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply part; and when the gas leakage of the gas water heater is determined based on the first flow and the second flow, controlling the self-locking electromagnetic valve to be switched to a closed state so as to switch the gas supply part from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply part. The invention solves the technical problems that gas leakage is easy to occur and potential safety hazards exist in the use process of the gas water heater in the related technology.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an air leakage prevention device, a gas water heater and a control method and device of the gas water heater.
Background
Currently, the use of gas is a common phenomenon, and basically, each household uses natural gas or is provided with a gas tank; however, no matter natural gas or coal gas is used, when a gas water heater is used, the problem of gas leakage can exist, explosion, fire and the like are easily caused, and great potential safety hazards exist.
Aiming at the problems that gas leakage and potential safety hazard exist easily in the use process of the gas water heater in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides an air leakage prevention device, a gas water heater and a control method and device of the gas water heater, and aims to at least solve the technical problems that in the related technology, the gas water heater is easy to leak air and has potential safety hazards in the use process.
According to an aspect of an embodiment of the present invention, there is provided an air leakage preventing apparatus including: the self-locking electromagnetic valve is arranged at the outlet of the gas supply component and used for controlling the gas output state of the gas supply component; the flow detection component is used for detecting a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component, wherein the gas supply component is used for supplying gas to the gas water heater; the control component is connected with the flow detection component and used for acquiring the first flow and the second flow and judging whether the gas water heater leaks gas or not based on the first flow and the second flow; the control component is also used for controlling the self-locking electromagnetic valve to be switched to a closed state when the gas water heater is determined to have gas leakage, so that the gas supply component is switched from a gas output state to a non-gas output state.
Optionally, the gas water heater further comprises: the temperature detection component is connected with a thermocouple of the gas water heater and used for acquiring the temperature of the thermocouple; and the control component is connected with the temperature detection component and used for acquiring the temperature and determining whether the gas water heater is in a working state or not based on the temperature.
Optionally, the gas water heater further comprises: and the alarm component is connected with the control component and used for generating alarm information when the control component judges that the gas water heater has gas leakage.
Optionally, the flow detecting component includes: the first flow detection component is arranged at an air inlet of the gas water heater and used for detecting the first flow; and the second flow detection part is arranged at the gas outlet of the gas supply part and is used for detecting the second flow.
According to another aspect of the embodiments of the present invention, there is also provided a gas water heater including: a water heater body; the air leakage preventing device of any one of the above.
According to another aspect of the embodiment of the present invention, there is also provided a control method of a gas water heater, applied to the gas water heater described above, including: acquiring a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply part; and when the gas water heater is determined to have gas leakage based on the first flow and the second flow, controlling a self-locking electromagnetic valve to be switched to a closed state so as to enable the gas supply component to be switched from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at an air outlet of the gas supply component.
Optionally, determining that there is an air leak in the gas water heater based on the first flow rate and the second flow rate comprises: determining a flow difference between the first flow and the second flow; and when the flow difference value is larger than the preset flow, determining that the gas water heater has gas leakage.
Optionally, the control method of the gas water heater further comprises: when the flow difference value is not larger than the preset flow, acquiring the temperature of a thermocouple of the gas water heater; comparing the temperature with a preset temperature to obtain a comparison result; and when the comparison result shows that the temperature does not reach the preset temperature, determining that the gas water heater has gas leakage.
Optionally, the control method of the gas water heater further comprises: and generating alarm information when the gas water heater is determined to have gas leakage.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus for a gas water heater, including: the acquiring unit is used for acquiring a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component; and the control unit is used for controlling a self-locking electromagnetic valve to be switched to a closed state when the gas water heater is determined to have gas leakage based on the first flow and the second flow, so that the gas supply component is switched from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply component.
Optionally, the control unit includes: a first determining module, configured to determine a flow difference between the first flow and the second flow; and the second determination module is used for determining that the gas water heater has gas leakage when the flow difference value is larger than the preset flow.
Optionally, the control device of the gas water heater further comprises: the acquisition module is used for acquiring the temperature of a thermocouple of the gas water heater when the flow difference value is not greater than the preset flow; the comparison module is used for comparing the temperature with a preset temperature to obtain a comparison result; and the third determining module is used for determining that the gas water heater has gas leakage when the comparison result shows that the temperature does not reach the preset temperature.
Optionally, the control device of the gas water heater further comprises: and the generating unit is used for generating alarm information when the gas water heater is determined to have gas leakage.
According to another aspect of an embodiment of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program executes the control method of a gas water heater of any one of the above.
According to another aspect of the embodiment of the present invention, there is also provided a processor for executing a program, wherein the program is executed to execute the control method of the gas water heater.
In the embodiment of the invention, a first flow at the air inlet of the gas water heater and a second flow at the air outlet of the gas supply component are obtained; and when the gas leakage of the gas water heater is determined based on the first flow and the second flow, controlling the self-locking electromagnetic valve to be switched to a closed state so as to switch the gas supply part from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply part. By the control method of the gas water heater provided by the embodiment of the invention, the purpose of controlling the self-locking electromagnetic valve through the flow at the air inlet of the gas water heater and the air outlet of the gas supply part is achieved, so that the technical effect is improved, and the technical problems that the gas water heater is easy to leak and has potential safety hazards in the use process in the related art are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic view of an air leakage preventing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a gas water heater according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 4 is a flow chart of the air leakage preventing self-locking device according to the embodiment of the invention;
fig. 5 is a schematic diagram of a control device of a gas water heater according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an aspect of an embodiment of the present invention, there is provided an air leakage preventing apparatus, fig. 1 is a schematic view of an air leakage preventing apparatus according to an embodiment of the present invention, as shown in fig. 1, including: self-locking electromagnetic valve 11, flow detection part 13 and control part 15.
The self-locking electromagnetic valve 11 is arranged at the outlet of the gas supply part and is used for controlling the gas output state of the gas supply part;
optionally, the self-locking solenoid valve is associated with the control system and is in a normally open state; is installed at the outlet of a gas source (a gas tank).
The flow detection component 13 is used for detecting a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component, wherein the gas supply component is used for supplying gas to the gas water heater;
optionally, the flow monitor comprises two flow detectors of an air leakage prevention self-locking device; is associated with a control system, a self-locking electromagnetic valve and an air inlet of a gas water heater (or a gas stove).
The control component 15 is connected with the flow detection component and used for acquiring the first flow and the second flow and judging whether the gas water heater leaks gas or not based on the first flow and the second flow;
and the control component 15 is further used for controlling the self-locking electromagnetic valve to be switched to a closed state when the gas leakage of the gas water heater is determined, so that the gas supply component is switched from a gas output state to a non-gas output state.
In this embodiment, the self-locking solenoid valve 11 is arranged at the outlet of the gas supply means; the control unit 15 is connected to the flow rate detection unit 13.
As can be seen from the above, in the embodiment of the present invention, the gas output state of the gas supply component can be controlled by the self-locking electromagnetic valve 11; the first flow at the air inlet of the gas water heater and the second flow at the air outlet of the gas supply component can be detected by the flow detection component 13; the control component 15 can also be used for acquiring a first flow and a second flow and judging whether the gas water heater leaks gas or not based on the first flow and the second flow; the control component 17 can also be used for controlling the self-locking electromagnetic valve to be switched to a closed state when the gas leakage of the gas water heater is determined, so that the gas supply component is switched from a gas output state to a non-gas output state. The gas leakage prevention device provided by the embodiment of the invention achieves the purpose of controlling the self-locking electromagnetic valve through the flow at the gas inlet of the gas water heater and the gas outlet of the gas supply component, thereby realizing the improved technical effect and further solving the technical problems of easy gas leakage and potential safety hazard existing in the use process of the gas water heater in the related technology.
As an alternative embodiment, the gas water heater further comprises: the temperature detection component is connected with a thermocouple of the gas water heater and used for acquiring the temperature of the thermocouple; and the control component is connected with the temperature detection component and used for acquiring the temperature and determining whether the gas water heater is in the working state or not based on the temperature.
In the above alternative embodiment, the control unit is associated with the latching solenoid valve, the flow detector and the temperature sensor, and determines whether to transmit the closing information of the latching solenoid valve by judging the received check value.
As an alternative embodiment, the gas water heater further comprises: and the alarm component is connected with the control component and used for generating alarm information when the control component judges that the gas water heater has gas leakage.
In the above embodiments, the alarm component is associated with the control system, and the alarm is triggered by the check value of the control system.
As an alternative embodiment, the flow detection component includes: the first flow detection component is arranged at an air inlet of the gas water heater and used for detecting a first flow; and the second flow detection part is arranged at the gas outlet of the gas supply part and is used for detecting the second flow.
From the above, the embodiment of the invention is mainly provided with the self-locking electromagnetic valve, the flow detector (flowmeter), the temperature sensor and the control system; the flow detector is used for detecting the flow of the gas outlet and the flow of the water heater air inlet, and the control system judges whether air leakage exists according to the flow of the gas outlet and the flow of the water heater air inlet, so that the working state of the electromagnetic valve is controlled; whether the gas belongs to the use state or not is judged through the temperature detector, the control system controls the working state of the electromagnetic valve according to the flow and the use state of the gas, and when the gas water heater uses the gas, the gas leakage condition occurs, the self-locking device can timely close the gas source, so that the personal safety is protected; when the gas is not used, the gas leakage condition occurs, and the self-locking device can close the gas source in time to prevent safety accidents; the problem of gas leakage in daily life is effectively solved, safety accidents caused by gas leakage are reduced, and normal life of people is guaranteed.
Example 2
According to another aspect of the embodiment of the present invention, there is also provided a gas water heater, and fig. 2 is a schematic view of the gas water heater according to the embodiment of the present invention, as shown in fig. 2, including: a water heater body 21 and an air leakage preventing device 23 of any one of the above.
As can be seen from the above, the gas water heater according to the embodiment of the present invention includes the water heater body 21 and the air leakage preventing device 23. The gas water heater provided by the embodiment of the invention achieves the purpose of controlling the self-locking electromagnetic valve through the flow at the gas inlet of the gas water heater and the gas outlet of the gas supply part, thereby realizing the improved technical effect and further solving the technical problems that the gas water heater is easy to leak and has potential safety hazards in the use process in the related technology.
From the above, the embodiment of the invention is mainly provided with the self-locking electromagnetic valve, the flow detector (flowmeter), the temperature sensor and the control system; the flow detector is used for detecting the flow of the gas outlet and the flow of the water heater air inlet, and the control system judges whether air leakage exists according to the flow of the gas outlet and the flow of the water heater air inlet, so that the working state of the electromagnetic valve is controlled; whether the gas belongs to the use state or not is judged through the temperature detector, the control system controls the working state of the electromagnetic valve according to the flow and the use state of the gas, and when the gas water heater uses the gas, the gas leakage condition occurs, the self-locking device can timely close the gas source, so that the personal safety is protected; when the gas is not used, the gas leakage condition occurs, and the self-locking device can close the gas source in time to prevent safety accidents; the problem of gas leakage in daily life is effectively solved, safety accidents caused by gas leakage are reduced, and normal life of people is guaranteed.
Example 3
In accordance with an embodiment of the present invention, there is provided a method embodiment of a method of controlling a gas water heater, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein.
Fig. 3 is a flowchart of a control method of a gas water heater according to an embodiment of the present invention, as shown in fig. 3, the method includes the steps of:
step S302, a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component are obtained.
Optionally, in the above step, the flow rate at the air inlet of the gas water heater (i.e. the first flow rate) and the flow rate at the air outlet of the gas supply part (i.e. the second flow rate) are obtained.
And step S304, when the gas leakage of the gas water heater is determined based on the first flow and the second flow, controlling the self-locking electromagnetic valve to be switched to a closed state so as to switch the gas supply part from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply part.
As can be seen from the above, in the embodiment of the present invention, first, the first flow rate at the air inlet of the gas water heater and the second flow rate at the air outlet of the gas supply component can be obtained; and then, when the gas leakage of the gas water heater is determined based on the first flow and the second flow, controlling the self-locking electromagnetic valve to be switched to a closed state so as to switch the gas supply component from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply component. By the control method of the gas water heater provided by the embodiment of the invention, the purpose of controlling the self-locking electromagnetic valve through the flow at the air inlet of the gas water heater and the air outlet of the gas supply part is achieved, so that the technical effect is improved, and the technical problems that the gas water heater is easy to leak and has potential safety hazards in the use process in the related art are solved.
As an alternative embodiment, determining that there is an air leak in the gas water heater based on the first flow rate and the second flow rate includes: determining a flow difference value between the first flow and the second flow; and when the flow difference value is larger than the preset flow, determining that the gas leakage exists in the gas water heater.
In the above alternative embodiment, the difference between the flow rate at the air inlet of the gas water heater (i.e. the first flow rate) and the flow rate at the air outlet of the gas supply component (i.e. the second flow rate) is determined, and when the difference between the flow rates is greater than the predetermined flow rate, it is determined that the gas leakage phenomenon exists in the gas water heater.
As an optional embodiment, the control method of the gas water heater further comprises: when the flow difference value is not greater than the preset flow, acquiring the temperature of a thermocouple of the gas water heater; comparing the temperature with a preset temperature to obtain a comparison result; and when the comparison result shows that the temperature does not reach the preset temperature, determining that the gas water heater has gas leakage.
In the above optional embodiment, when the obtained flow difference is less than or equal to the predetermined flow, the temperature of the thermocouple of the gas water heater is obtained, and after the temperature is compared with the preset temperature, if the obtained temperature is less than the preset temperature, it is determined that the gas water heater has gas leakage.
As an optional embodiment, the control method of the gas water heater further comprises: and when the gas water heater is determined to have gas leakage, alarm information is generated.
Fig. 4 is a flowchart of the gas leakage prevention self-locking device according to the embodiment of the invention, as shown in fig. 4, after the gas leakage prevention self-locking device of the water heater is started (normally in a working state), firstly, the flow detector detects flow values at the gas tank outlet and the gas inlet of the water heater, the detected flow values are transmitted to the control system, the control system judges whether gas leaks from the gas pipe and the interface between the gas tank outlet and the gas inlet of the water heater according to the received detection values and the flow values detected by the two detectors, if the difference between the flow values is larger than a certain value (set value), the gas pipe and the interface leak, the control system transmits closing information to the self-locking electromagnetic valve, the self-locking electromagnetic valve is closed, the gas source is cut off, and meanwhile, the control system transmits alarm information to the alarm system, and the alarm system gives an alarm; if the flow values of the two are smaller than a set value or are consistent, the air leakage phenomenon does not exist, the air leakage prevention self-locking device will work next step, the temperature sensor starts to detect the temperature of the thermocouple, the temperature sensor transmits the detected temperature value to the control system, then the control system makes judgment according to the received temperature value, and if the temperature value received by the control system reaches the set temperature (set value) within a certain time (time is set on the control system) after the flow detector detects the flow, the water heater is normally used; the control system does not transmit any message to the self-locking electromagnetic valve (the self-locking electromagnetic valve is in a normally open state, no action can be caused if the self-locking electromagnetic valve cannot receive the message), if the temperature value received by the control system does not reach a set value, the water heater does not work, in order to prevent gas leakage, the control system transmits closing information to the self-locking electromagnetic valve, the self-locking valve is closed, a gas source is cut off, meanwhile, the control system transmits alarm information to the alarm system, and the alarm system gives an alarm.
From the above, the embodiment of the invention is mainly provided with the self-locking electromagnetic valve, the flow detector (flowmeter), the temperature sensor and the control system; the flow detector is used for detecting the flow of the gas outlet and the flow of the water heater air inlet, and the control system judges whether air leakage exists according to the flow of the gas outlet and the flow of the water heater air inlet, so that the working state of the electromagnetic valve is controlled; whether the gas belongs to the use state or not is judged through the temperature detector, the control system controls the working state of the electromagnetic valve according to the flow and the use state of the gas, and when the gas water heater uses the gas, the gas leakage condition occurs, the self-locking device can timely close the gas source, so that the personal safety is protected; when the gas is not used, the gas leakage condition occurs, and the self-locking device can close the gas source in time to prevent safety accidents; the problem of gas leakage in daily life is effectively solved, safety accidents caused by gas leakage are reduced, and normal life of people is guaranteed.
Example 4
According to another aspect of the embodiment of the present invention, there is also provided a control device of a gas water heater, and fig. 5 is a schematic diagram of the control device of the gas water heater according to the embodiment of the present invention, as shown in fig. 5, including: an acquisition unit 51 and a control unit 53.
An obtaining unit 51, configured to obtain a first flow rate at an air inlet of the gas water heater and a second flow rate at an air outlet of the gas supply component;
and the control unit 53 is used for controlling the self-locking electromagnetic valve to be switched to a closed state when the gas leakage of the gas water heater is determined based on the first flow and the second flow, so that the gas supply part is switched from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply part.
It should be noted that the acquiring unit 51 and the control unit 53 correspond to steps S302 to S304 in embodiment 3, and the modules are the same as the examples and application scenarios realized by the corresponding steps, but are not limited to the disclosure of embodiment 1. It should be noted that the modules described above as part of an apparatus may be implemented in a computer system such as a set of computer-executable instructions.
As can be seen from the above, in the embodiment of the present invention, first, the first flow rate at the air inlet of the gas water heater and the second flow rate at the air outlet of the gas supply part can be obtained by the obtaining unit 51; then, when it is determined that there is air leakage in the gas water heater based on the first flow rate and the second flow rate, the control unit 53 may control the self-locking solenoid valve to switch to the closed state, so as to switch the gas supply component from the gas output state to the non-gas output state, where the self-locking solenoid valve is disposed at the gas outlet of the gas supply component. The control device of the gas water heater provided by the embodiment of the invention achieves the purpose of controlling the self-locking electromagnetic valve through the flow at the air inlet of the gas water heater and the air outlet of the gas supply part, thereby realizing the improved technical effect and further solving the technical problems of easy air leakage and potential safety hazard in the use process of the gas water heater in the related technology.
Optionally, a control unit comprising: the first determining module is used for determining a flow difference value between the first flow and the second flow; and the second determination module is used for determining that the gas water heater has gas leakage when the flow difference value is larger than the preset flow.
Optionally, the control device of the gas water heater further comprises: the acquisition module is used for acquiring the temperature of a thermocouple of the gas water heater when the flow difference value is not greater than the preset flow; the comparison module is used for comparing the temperature with a preset temperature to obtain a comparison result; and the third determining module is used for determining that the gas water heater has gas leakage when the comparison result shows that the temperature does not reach the preset temperature.
Optionally, the control device of the gas water heater further comprises: and the generating unit is used for generating alarm information when the gas water heater is determined to have gas leakage.
Example 5
According to another aspect of an embodiment of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program executes the control method of the gas water heater of any one of the above.
Example 6
According to another aspect of the embodiment of the invention, there is also provided a processor for executing a program, wherein the program executes the control method of the gas water heater according to any one of the above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (12)
1. An air leakage prevention device, comprising:
the self-locking electromagnetic valve is arranged at the outlet of the gas supply component and used for controlling the gas output state of the gas supply component;
the flow detection component is used for detecting a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component, wherein the gas supply component is used for supplying gas to the gas water heater;
the control component is connected with the flow detection component and used for acquiring the first flow and the second flow and judging whether the gas water heater leaks gas or not based on the first flow and the second flow;
the control component is also used for controlling the self-locking electromagnetic valve to be switched to a closed state when the gas water heater is determined to have gas leakage, so that the gas supply component is switched from a gas output state to a non-gas output state.
2. An air leakage preventing device according to claim 1, further comprising:
the temperature detection component is connected with a thermocouple of the gas water heater and used for acquiring the temperature of the thermocouple;
and the control component is connected with the temperature detection component and used for acquiring the temperature and determining whether the gas water heater is in a working state or not based on the temperature.
3. An air leakage preventing device according to claim 1, further comprising:
and the alarm component is connected with the control component and used for generating alarm information when the control component judges that the gas water heater has gas leakage.
4. An air leakage preventing device according to any one of claims 1 to 3, wherein the flow rate detecting member includes:
the first flow detection component is arranged at an air inlet of the gas water heater and used for detecting the first flow;
and the second flow detection part is arranged at the gas outlet of the gas supply part and is used for detecting the second flow.
5. A gas water heater, comprising:
a water heater body;
an air leakage preventing device as claimed in any one of the above claims 1 to 4.
6. A control method of a gas water heater, which is applied to the gas water heater of claim 5, comprising:
acquiring a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply part;
and when the gas water heater is determined to have gas leakage based on the first flow and the second flow, controlling a self-locking electromagnetic valve to be switched to a closed state so as to enable the gas supply component to be switched from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at an air outlet of the gas supply component.
7. The method of claim 6, wherein determining that there is an air leak in the gas water heater based on the first flow rate and the second flow rate comprises:
determining a flow difference between the first flow and the second flow;
and when the flow difference value is larger than the preset flow, determining that the gas water heater has gas leakage.
8. The method of claim 7, further comprising:
when the flow difference value is not larger than the preset flow, acquiring the temperature of a thermocouple of the gas water heater;
comparing the temperature with a preset temperature to obtain a comparison result;
and when the comparison result shows that the temperature does not reach the preset temperature, determining that the gas water heater has gas leakage.
9. The method according to claim 7 or 8, characterized in that the method further comprises:
and generating alarm information when the gas water heater is determined to have gas leakage.
10. A control device for a gas water heater, comprising:
the acquiring unit is used for acquiring a first flow at an air inlet of the gas water heater and a second flow at an air outlet of the gas supply component;
and the control unit is used for controlling a self-locking electromagnetic valve to be switched to a closed state when the gas water heater is determined to have gas leakage based on the first flow and the second flow, so that the gas supply component is switched from a gas output state to a non-gas output state, wherein the self-locking electromagnetic valve is arranged at the gas outlet of the gas supply component.
11. A computer-readable storage medium characterized by comprising a stored program, wherein the program executes the control method of a gas water heater of any one of claims 6 to 9.
12. A processor, characterized in that it is configured to run a program, wherein the program is configured to execute the method of controlling a gas water heater according to any one of claims 6 to 9 when running.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210044881.1A CN114383325A (en) | 2022-01-14 | 2022-01-14 | Gas leakage prevention device, gas water heater and control method and device of gas water heater |
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| CN202210044881.1A CN114383325A (en) | 2022-01-14 | 2022-01-14 | Gas leakage prevention device, gas water heater and control method and device of gas water heater |
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