CN113324335A - Intelligent monitoring method for gas used by gas water heater - Google Patents
Intelligent monitoring method for gas used by gas water heater Download PDFInfo
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- CN113324335A CN113324335A CN202110642718.0A CN202110642718A CN113324335A CN 113324335 A CN113324335 A CN 113324335A CN 202110642718 A CN202110642718 A CN 202110642718A CN 113324335 A CN113324335 A CN 113324335A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000004364 calculation method Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 132
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an intelligent monitoring method for gas consumption of a gas water heater; the gas water heater comprises a water flow Q collectorAmount of waterThe water flow sensor, the temperature sensor for acquiring temperature rise delta T and the pressure sensor for acquiring gas pressure P; the calculation method of the gas consumption of the gas water heater during operation comprises the following steps: the gas consumption is (the total heat consumed by the gas appliance in the accumulated time)/the gas heat value; and (3) the real-time thermal efficiency of the heat consumed by the gas appliance is accumulated for a period of time to obtain the total heat consumed by the accumulated time of the gas appliance. The invention uses information and communication technology means for sensing and analyzing, and realizes accurate measurement and transmission of gas quantity by means of the existing intelligent module of the gas water heater.
Description
Technical Field
The invention relates to the technical field of gas water heater manufacturing, in particular to an intelligent gas monitoring method for a gas water heater.
Background
The gas appliance APP has the function of water outlet temperature; the running state of the equipment; and monitoring and inquiring data of the service life, the accumulated combustion time, the accumulated combustion times and the accumulated gas consumption.
In the prior art, the data monitoring of the accumulated gas consumption is completed by a fixed data display, which is mostly not accurate enough and has a large error. Not enough to be a reliable data to be provided to the user. The accumulated gas consumption is checked by means of a conventional gas meter.
If APP can provide accurate accumulative gas consumption data, hysteresis of meter reading and wireless transmission of entering the household can be avoided, and service experience of civil users to gas companies can be greatly improved.
At present, the existing traditional gas meters in China are huge in storage, 6000 thousands of mechanical gas meters and 4000 thousands of IC card gas meters, and 40% of sales volume of the existing traditional gas meters are pure mechanical or IC card gas meters every year. And the increased joint for installing the gas meter enables the leakage probability of the system to exponentially increase.
And the current water heater APP can not adjust and calculate the working state of the gas water heater in real time for gas metering. The error produced is different for different operating conditions. Therefore, under the current technical condition, the error of calculating the accumulated air consumption by using a fixed calculation formula is large or small, and the fluctuation is large. Cannot be used as a valid data, and can only be used as reference data.
Therefore, how to use information and communication technology means to sense and analyze, and with the help of the existing intelligent module of the gas water heater, to realize accurate measurement and transmission of the gas quantity becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above defects in the prior art, the present invention provides an intelligent gas monitoring method for a gas water heater, which aims to realize accurate measurement and transmission of gas quantity by using information and communication technology means to sense and analyze and using the existing intelligent module of the gas water heater.
In order to achieve the purpose, the invention discloses an intelligent monitoring method for gas consumption of a gas water heater; the gas water heater comprises a water flow Q collectorAmount of waterThe water flow sensor, the temperature sensor for acquiring temperature rise delta T and the pressure sensor for acquiring gas pressure P; the calculation method of the gas consumption of the gas water heater during operation comprises the following steps:
the gas consumption is (the total heat consumed by the gas appliance in the accumulated time)/the gas heat value;
the real-time thermal efficiency of the heat consumed by the gas appliance is accumulated for a period of time to obtain the total heat consumed by the gas appliance in the accumulated time;
wherein the heat consumed by the gas appliance is the power of the gas water heater; the heat value of the fuel gas is the heat value of fuel combustion;
the real-time thermal efficiency is calculated by the following formula:
wherein, PmaxThe maximum gas pressure.
Preferably, the fuel is natural gas and has a heating value of 9520Nm3, or the fuel is liquefied gas and has a heating value of 24101Nm 3.
Preferably, the gas water heater comprises a micro control unit, namely a single chip microcomputer;
the micro control unit acquires the water flow Q when the gas water heater operates through the water flow sensor, the temperature sensor and the pressure sensorAmount of waterTemperature rise delta T and gas pressure P, and calculating the gas consumption of the gas water heater during operation.
More preferably, the micro control unit is connected with a cloud server in a wired or wireless manner, and sends the gas consumption of the gas water heater during operation to the cloud server.
More preferably, the cloud server is used for controlling the water flow rate Q when the gas water heater operatesAmount of waterThe temperature rise delta T, the gas pressure P and the gas consumption during the operation of the gas water heater are filed and then sent to the intelligent terminal.
More preferably, the intelligent terminal is a smart phone or a tablet computer.
The invention has the beneficial effects that:
the invention uses information and communication technology means for sensing and analyzing, and realizes accurate measurement and transmission of gas quantity by means of the existing intelligent module of the gas water heater.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 shows a computational flow diagram of an embodiment of the invention.
Fig. 2 shows a connection structure diagram of a gas water heater and an intelligent terminal according to an embodiment of the present invention.
Detailed Description
Examples
As shown in figures 1 and 2 of the drawings,an intelligent monitoring method for gas consumption of a gas water heater; the gas water heater comprises a water flow Q collectorAmount of waterThe water flow sensor, the temperature sensor for acquiring temperature rise delta T and the pressure sensor for acquiring gas pressure P; the method for calculating the gas consumption of the gas water heater during operation comprises the following steps:
the gas consumption is (the total heat consumed by the gas appliance in the accumulated time)/the gas heat value;
the real-time thermal efficiency of the heat consumed by the gas appliance is accumulated for a period of time to obtain the total heat consumed by the gas appliance in the accumulated time;
wherein, the heat consumed by the gas appliance is the power of the gas water heater; the heat value of the fuel gas is the heat value of fuel combustion;
the real-time thermal efficiency is calculated by the following formula:
wherein, PmaxThe maximum gas pressure.
The principle of the invention is as follows:
the method comprises the steps of firstly analyzing the current combustion state by a body operation part of the machine to obtain combustion data under the current combustion working condition, calculating the real-time thermal efficiency corresponding to the combustion working condition through a formula, calculating the current instantaneous heat of the machine, and sending the instantaneous gas consumption to a server through the body operation part by a host when the total heat of a period of time is accumulated. The server manages the calendar and the accumulated gas consumption.
Aiming at the existing monitoring sensor of the water heater, an instantaneous natural gas flow metering and calculating method under different gas using scenes is established, the deviation of the gas consumption is calculated by comparing the direct gas metering and the hot water balance, and the influence of the precision of the testing parameters on the metering precision is analyzed. And obtaining a water side parameter-based accurate calculation method for the gas consumption of the gas water heater and an error analysis report. And then the data is sent to the APP end of the user through the server, so that the user can accurately monitor the gas consumption in real time.
According to the formula of thermal efficiency:
in the formula:
thermal efficiency-temperature t ═ of hot water (t)w2-tw1) Thermal efficiency at K,%;
c-specific heat of water, 4.19X 10-3MJ/kg·K；
M-amount of hot water, unit is kilogram per minute (kg/min)
tw2-the temperature of the hot water in degrees centigrade (deg.c);
tw1-the temperature of the water intake in degrees centigrade (c);
Q1-actually measuring the low calorific value of the fuel gas in megajoules per cubic meter (MJ/m)3)；
V-measured gas flow rate in units of cubic meters per hour (m)3/min)；
tgThe temperature of the gas in the gas flowmeter during the test is in centigrade (DEG C);
Pa-atmospheric pressure at the time of the test in kilopascals (kPa);
Ps-the gas pressure in kilopascals (kPa) within the gas meter during the test;
s-temperature tgSaturation vapor pressure in kilopascals (kPa) at c (corrected for by multiplying the relative humidity of the test gas when measured using a dry flow meter).
From the thermal efficiency indication it follows:
removing the constant values, thermal efficiency and M (hot water output), (t)w2-tw1) (temperature rise) is related to V (gas flow). M (hot water output) can be directly obtained by a water flow sensor, (t)w2-tw1) The (temperature rise) is directly obtained by the temperature sensor.
Therefore, the thermal efficiency is directly related to the secondary pressure of the machine.
In certain embodiments, the fuel is natural gas and has a heating value of 9520Nm3, or the fuel is liquefied gas and has a heating value of 24101Nm 3.
In some embodiments, the gas water heater includes a micro-control unit, i.e., a single-chip microcomputer;
the micro control unit collects the water flow Q of the gas water heater during operation through the water flow sensor, the temperature sensor and the pressure sensorAmount of waterTemperature rise delta T and gas pressure P, and calculating the gas consumption of the gas water heater during operation.
In certain embodiments, the micro control unit is connected with the cloud server in a wired or wireless manner, and sends the gas consumption of the gas water heater during operation to the cloud server.
In certain embodiments, the water flow Q at which the cloud server operates the gas water heaterAmount of waterAnd after the temperature rise delta T and the gas pressure P and the gas consumption of the gas water heater during operation are filed, the implementation is sent to the intelligent terminal for use.
In some embodiments, the smart terminal is a smart phone or a tablet computer.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. An intelligent monitoring method for gas consumption of a gas water heater; it is characterized in that the gas water heater comprises a water flow Q for collecting water flowAmount of waterThe water flow sensor, the temperature sensor for acquiring temperature rise delta T and the pressure sensor for acquiring gas pressure P; the calculation method of the gas consumption of the gas water heater during operation comprises the following steps:
the gas consumption is (the total heat consumed by the gas appliance in the accumulated time)/the gas heat value;
the real-time thermal efficiency of the heat consumed by the gas appliance is accumulated for a period of time to obtain the total heat consumed by the gas appliance in the accumulated time;
wherein the heat consumed by the gas appliance is the power of the gas water heater; the heat value of the fuel gas is the heat value of fuel combustion;
the real-time thermal efficiency is calculated by the following formula:
wherein, PmaxThe maximum gas pressure.
2. The intelligent gas monitoring method for the gas heater as claimed in claim 1, wherein the fuel is natural gas and has a heating value of 9520Nm3, or the fuel is liquefied gas and has a heating value of 24101Nm 3.
3. The intelligent monitoring method for gas consumption of a gas water heater according to claim 1, wherein the gas water heater comprises a micro control unit, namely a single chip microcomputer;
the micro control unit acquires the water flow Q when the gas water heater operates through the water flow sensor, the temperature sensor and the pressure sensorAmount of waterTemperature rise delta T and gas pressure P, and calculating the gas consumption of the gas water heater during operation.
4. The intelligent gas monitoring method for the gas water heater according to claim 3, wherein the micro control unit is connected with a cloud server in a wired or wireless manner, and the water flow Q during the operation of the gas water heaterAmount of waterAnd the temperature rise delta T, the gas pressure P and the gas consumption during the operation of the gas water heater are sent to the cloud server.
5. The intelligent gas water heater monitoring method according to claim 4, wherein the cloud server archives the gas consumption of the gas water heater during operation and sends the archived gas consumption to an intelligent terminal for use.
6. The intelligent monitoring method for gas consumption of a gas water heater according to claim 5, wherein the intelligent terminal is a smart phone or a tablet computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642718.0A CN113324335A (en) | 2021-06-09 | 2021-06-09 | Intelligent monitoring method for gas used by gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642718.0A CN113324335A (en) | 2021-06-09 | 2021-06-09 | Intelligent monitoring method for gas used by gas water heater |
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| CN113324335A true CN113324335A (en) | 2021-08-31 |
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| CN202110642718.0A Pending CN113324335A (en) | 2021-06-09 | 2021-06-09 | Intelligent monitoring method for gas used by gas water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289683A (en) * | 2022-06-28 | 2022-11-04 | 青岛海尔科技有限公司 | Gas water heater evaluation method and device based on Internet of things and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61149761A (en) * | 1984-12-24 | 1986-07-08 | Matsushita Electric Ind Co Ltd | Gas-burning tap-controlled water heater |
| CN108826657A (en) * | 2018-06-26 | 2018-11-16 | 广东长虹电子有限公司 | A kind of heater with combustion gas statistical function |
| KR102088790B1 (en) * | 2018-11-29 | 2020-03-16 | 린나이코리아 주식회사 | Method for Correcting of Gas Amount of Gas Boiler |
| CN111651847A (en) * | 2019-02-18 | 2020-09-11 | 新奥数能科技有限公司 | Method and device for determining running oxygen amount of gas-fired boiler |
-
2021
- 2021-06-09 CN CN202110642718.0A patent/CN113324335A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61149761A (en) * | 1984-12-24 | 1986-07-08 | Matsushita Electric Ind Co Ltd | Gas-burning tap-controlled water heater |
| CN108826657A (en) * | 2018-06-26 | 2018-11-16 | 广东长虹电子有限公司 | A kind of heater with combustion gas statistical function |
| KR102088790B1 (en) * | 2018-11-29 | 2020-03-16 | 린나이코리아 주식회사 | Method for Correcting of Gas Amount of Gas Boiler |
| CN111651847A (en) * | 2019-02-18 | 2020-09-11 | 新奥数能科技有限公司 | Method and device for determining running oxygen amount of gas-fired boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289683A (en) * | 2022-06-28 | 2022-11-04 | 青岛海尔科技有限公司 | Gas water heater evaluation method and device based on Internet of things and storage medium |
| CN115289683B (en) * | 2022-06-28 | 2024-05-24 | 青岛海尔科技有限公司 | Gas water heater evaluation method, equipment and storage medium based on Internet of Things |
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