CN115264956A - Control method of gas water heating equipment, gas water heating equipment and storage medium - Google Patents
Control method of gas water heating equipment, gas water heating equipment and storage medium Download PDFInfo
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- CN115264956A CN115264956A CN202210855660.2A CN202210855660A CN115264956A CN 115264956 A CN115264956 A CN 115264956A CN 202210855660 A CN202210855660 A CN 202210855660A CN 115264956 A CN115264956 A CN 115264956A
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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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
- C10K3/06—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by mixing with gases
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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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/176—Improving or maintaining comfort of users
- F24H15/18—Preventing sudden or unintentional change of fluid temperature
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
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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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
本发明公开一种燃气热水设备的控制方法、燃气热水设备及存储介质，其特征在于，所述控制方法为获取当前使用的掺氢天然气的当前掺氢比例，以及判断所述当前掺氢比例所在的掺氢比例区间，根据所述掺氢比例区间选择对应的控制程序，使得燃气热水设备的负荷、效率和燃烧工况参数保持不变。同一台燃气热水设备可以适应不同比例的掺氢天然气，并且保证使用不同比例掺氢天然气的燃烧工况和热水工况基本不发生改变，无需在结构上进行大调整。
The invention discloses a control method for gas-fired hot water equipment, gas-fired hot water equipment and a storage medium, characterized in that the control method is to obtain the current hydrogen-mixing ratio of the currently used hydrogen-mixed natural gas, and determine the current hydrogen-mixing ratio. The corresponding control program is selected according to the hydrogen mixing ratio interval in which the ratio is located, so that the load, efficiency and combustion condition parameters of the gas-fired hot water equipment remain unchanged. The same gas-fired hot water equipment can adapt to different proportions of hydrogen-doped natural gas, and ensure that the combustion conditions and hot-water conditions of using different proportions of hydrogen-blended natural gas are basically unchanged, and no major structural adjustment is required.
Description
Technical Field
The invention relates to the technical field of gas water heating equipment, in particular to a control method of gas water heating equipment, the gas water heating equipment and a storage medium.
Background
The combustion rate of the natural gas can be improved by mixing a small amount of hydrogen into the natural gas, the stable lean-burn limit of the natural gas is expanded, the pollutant emission is obviously reduced, the hydrogen-doped natural gas can be used as a feasible mode for transition to a hydrogen energy source under the condition that the existing hydrogen distribution infrastructure is incomplete, and a series of problems caused by concentrated replacement of a water heater during gas switching can be effectively solved.
In the prior art, in the process of switching from conventional natural gas to hydrogen-doped natural gas, the gas appliance can be directly used without any structural change and program control adjustment under the condition of gas source change with the hydrogen proportion not exceeding 20%. The combustion characteristics of the hydrogen-loaded natural gas in different proportions are changed: along with the increase of the proportion of hydrogen in the hydrogen-doped natural gas, the heat value and the relative density are gradually reduced, and the load, the efficiency and the yield of the fuel gas are changed even the use requirement is not met by adopting the control mode of the same parameter; for the natural gas doped with hydrogen in different proportions, the natural gas is operated by adopting the same parameter, the generated hot water and heating performance are changed, the problem of large water temperature fluctuation is caused, and the flue gas is deteriorated due to the change of the combustion working condition.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a control method of gas water heating equipment, which uses the hydrogen-doped natural gas with different proportions to basically keep the combustion working condition and the hot water working condition unchanged.
Another object of the present invention is to provide a gas-fired water heating apparatus using the control method and a storage medium storing the control method.
In order to achieve the purpose, the invention adopts the following technical scheme.
A control method of gas water heating equipment is provided with different control programs corresponding to hydrogen-doped natural gas with different hydrogen-doped proportions; before the gas water heater works, the current hydrogen-loading proportion of the currently used hydrogen-loading natural gas is obtained, the hydrogen-loading proportion interval where the current hydrogen-loading proportion is located is judged, and a corresponding control program is selected according to the hydrogen-loading proportion interval, so that the load, the efficiency and the combustion working condition parameters of the gas water heater are kept unchanged.
As a further explanation of the above scheme, the hydrogen loading ratio in the range of 0 to 30% is divided into several sections.
As a further explanation of the above scheme, the hydrogen loading ratio in the range of 0 to 30% is divided into equal parts into 6 intervals.
As a further explanation of the above scheme, a human-computer interaction module is provided on the gas water heater, and a user inputs the current hydrogen-loading ratio through the human-computer interaction module or directly selects a corresponding control program.
As a further explanation of the above scheme, a gas detector for detecting the hydrogen concentration and the methane concentration of the hydrogen-doped natural gas is arranged on the gas water heating equipment, and the current hydrogen doping proportion is obtained from a signal fed back by the gas detector.
As a further explanation of the above solution, the gas detector is arranged on the gas inlet channel of the gas water heating apparatus and/or the burner of the gas water heating apparatus.
A gas-fired water heating apparatus, comprising: the control system comprises a memory, a processor and a gas-fired water heating device control program which is stored on the memory and can run on the processor, wherein when the control program is executed by the processor, the control method of the gas-fired water heating device is realized.
A storage medium on which a gas-fired water heating apparatus control program is stored, the gas-fired water heating apparatus control program, when executed by a processor, implementing the control method of the gas-fired water heating apparatus as set forth in any one of the above.
The beneficial effects of the invention are: (1) The same gas water heating equipment can adapt to the hydrogen-doped natural gas with different proportions, and the combustion working condition and the hot water working condition of the hydrogen-doped natural gas with different proportions are ensured to be basically unchanged without large adjustment on the structure. (2) The gas water heating equipment is provided with a gas detector and a man-machine interaction module, and when the hydrogen-loading proportion in the hydrogen-loaded natural gas is changed, the gas water heating equipment automatically adjusts and selects a matched control program.
Drawings
Fig. 1 is a schematic structural view of the gas-fired water heating apparatus provided by the present invention.
Fig. 2 is a logic diagram of a control program selected by the control method of the gas-fired water heating equipment provided by the invention.
Reference numerals indicate the same.
1: intake passage, 2: square tube, 3: gas detector, 4: processor, 5: heat exchanger, 6: burner, 7: a fan.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly defined or limited, the terms "assembled", "connected" and "connected" should be construed broadly and include, for example, fixed connections, detachable connections or integral connections; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature "above," "below," and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply an elevation where the first feature is at a higher level than the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will further describe embodiments of the present invention with reference to the accompanying drawings of the specification, so that the technical solutions and the advantages thereof of the present invention are more clear and definite. The embodiments described below are exemplary by referring to the drawings, are intended to explain the present invention, and should not be construed as limiting the present invention.
Example 1.
The control method of the gas water heating equipment is characterized by obtaining the current hydrogen-loading ratio of the currently used hydrogen-loading natural gas, judging the hydrogen-loading ratio interval in which the current hydrogen-loading ratio is positioned, and selecting a corresponding control program according to the hydrogen-loading ratio interval so as to keep the load, the efficiency and the combustion working condition parameters of the gas water heating equipment unchanged.
It should be noted that the loading ratio of the hydrogen-loaded natural gas is divided into a plurality of sections, and a corresponding control program is designed according to the loading ratio of each section, so that the load, efficiency and combustion condition parameters of the gas water heater are basically kept unchanged. For example, the hydrogen doping ratio is 0 to N1% corresponding control program K1Hydrogen doping ratio of N1%~N2% corresponding control program K2823060, 8230305, N doping raten-1%~Nn% corresponding control program Kn。
On the bookIn the embodiment, according to the research and test calculation of the inventor, when the hydrogen content is more than 30%, the gas appliance does not need to be subjected to any structural change, and the phenomenon that the use of the gas appliance is influenced by using the hydrogen-doped natural gas can not occur, so that the hydrogen doping ratio can be selected to be not more than 30%; when the hydrogen content is changed within 5%, the heat value and the relative density of the hydrogen-doped natural gas are changed within 5%, and the load, the efficiency, the combustion working condition and the like of the gas appliance are basically not changed, so that 5% can be selected as an interval, and the control program corresponding to the hydrogen content in the hydrogen-doped natural gas of 0 to 5% is K1The control program corresponding to the hydrogen mixing ratio of 5-10% is K2The corresponding control program with the hydrogen doping ratio of 10-15 percent is K3The corresponding control program with the hydrogen doping ratio of 15-20 percent is K4The corresponding control program with the hydrogen doping ratio of 20-25 percent is K5The corresponding control program with the hydrogen doping ratio of 25-30 percent is K6And selecting a matched corresponding control program to control the gas appliance according to the component proportion of the currently used hydrogen-doped natural gas.
The gas water heating equipment is provided with a human-computer interaction module, and a user can input the current hydrogen-loading ratio or directly select a corresponding control program through the human-computer interaction module under the condition that the user knows the current hydrogen-loading ratio.
In some other embodiments, as shown in fig. 1, a gas detector 3 for detecting the concentrations of hydrogen and methane in the intake air is disposed on the intake passage 1 of the gas water heater and/or the burner 6 of the gas water heater, and the current hydrogen loading ratio is obtained according to a signal fed back by the gas detector. If be equipped with gas detector 3 on the combustor, after the loading natural gas passes through inlet channel 1, the loading natural gas is spout from the square pipe (including the nozzle) 2 of combustor, is detected by gas detector 3 to detect hydrogen and methane concentration in the loading natural gas, then gas detector with signal transmission to controlling means 4, controlling means 4 calculates the loading proportion, then comes the automatic control program that matches according to the loading proportion. Further, the specific installation position of the gas detector is that the gas detector is installed at the square pipe nozzle of the combustor or in the air inlet channel. When the device is installed in the air inlet channel, the device is not influenced by air, and the hydrogen loading proportion in the fuel gas can be calculated only by using a single hydrogen detector or a methane detector.
It should be noted that, the selection manner of the control program may be to directly select the corresponding control program after receiving the current hydrogen loading ratio. Or as shown in FIG. 2, first, whether the current hydrogen loading ratio is within the first hydrogen loading ratio interval of 0 to N is judged1% if yes, the control program K is adopted1Continuing to work, if not, selecting and judging whether the hydrogen loading ratio is in the second interval, and so on until the hydrogen loading ratio is confirmed, and then selecting a matching program Kn。
Example 2.
A gas-fired water heating apparatus, comprising: a memory, a processor 4 and a gas water heater control program stored on the memory and operable on the processor 4, wherein the gas water heater control program, when executed by the processor 4, implements the method of controlling a gas water heater as described in embodiment 1.
As shown in connection with fig. 1, the gas-fired water heating apparatus includes: the air conditioner comprises a shell, a combustor 6 and a heat exchanger 5 which are arranged in the shell, an air inlet channel 1 connected with the combustor and a fan 7 used for drawing air to circulate. Obviously, those skilled in the art can adopt other existing or future gas-fired water heating equipment structures according to actual needs, and the details are not described herein.
Example 3.
A storage medium on which a gas-fired water heating apparatus control program is stored, the gas-fired water heating apparatus control program, when executed by a processor, implementing the control method of the gas-fired water heating apparatus according to embodiment 1.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (8)
1. A control method of gas water heating equipment is characterized in that different control programs are arranged corresponding to hydrogen-doped natural gas with different hydrogen-doped proportions; before the gas water heating equipment works, acquiring the current hydrogen-loading proportion of the currently used hydrogen-loading natural gas, judging the hydrogen-loading proportion interval in which the current hydrogen-loading proportion is positioned, and selecting a corresponding control program according to the hydrogen-loading proportion interval, so that the load, the efficiency and the combustion working condition parameters of the gas water heating equipment are kept unchanged.
2. The control method of a gas fired water heating apparatus according to claim 1, wherein the hydrogen loading ratio ranging from 0 to 30% is divided into a plurality of sections.
3. The control method of a gas-fired water heating apparatus according to claim 2, wherein the hydrogen-loading ratio ranging from 0 to 30% is equally divided into 6 sections.
4. The control method of the gas water heating equipment according to claim 1, wherein a human-computer interaction module is arranged on the gas water heating equipment, and a user inputs the current hydrogen-adding proportion or directly selects a corresponding control program through the human-computer interaction module.
5. The control method of the gas water heating equipment according to claim 1, wherein a gas detector for detecting the hydrogen concentration and the methane concentration of the hydrogen-doped natural gas is arranged on the gas water heating equipment, and the current hydrogen doping ratio is obtained from a signal fed back by the gas detector.
6. The control method of the gas water heating device according to claim 5, wherein the gas detector is arranged on an air inlet channel of the gas water heating device and/or a burner of the gas water heating device.
7. A gas-fired water heating apparatus, comprising: a memory, a processor and a gas-fired water heating apparatus control program stored on the memory and executable on the processor, the gas-fired water heating apparatus control program, when executed by the processor, implementing the control method of the gas-fired water heating apparatus according to any one of claims 1 to 6.
8. A storage medium having stored thereon a gas-fired water heating apparatus control program which, when executed by a processor, realizes the control method of the gas-fired water heating apparatus according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210855660.2A CN115264956A (en) | 2022-07-20 | 2022-07-20 | Control method of gas water heating equipment, gas water heating equipment and storage medium |
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| CN202210855660.2A CN115264956A (en) | 2022-07-20 | 2022-07-20 | Control method of gas water heating equipment, gas water heating equipment and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116452831A (en) * | 2023-04-27 | 2023-07-18 | 中国长江三峡集团有限公司 | Adjustment method, device and electronic equipment of natural gas hydrogen-doped combustion system |
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Application publication date: 20221101 |