CN111426070A - Wall-mounted furnace smoke tube detection method and device and wall-mounted furnace - Google Patents
Wall-mounted furnace smoke tube detection method and device and wall-mounted furnace Download PDFInfo
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- CN111426070A CN111426070A CN202010436574.9A CN202010436574A CN111426070A CN 111426070 A CN111426070 A CN 111426070A CN 202010436574 A CN202010436574 A CN 202010436574A CN 111426070 A CN111426070 A CN 111426070A
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/025—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electrical or electromechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2900/00—Special features of, or arrangements for controlling combustion
- F23N2900/05005—Mounting arrangements for sensing, detecting or measuring devices
Abstract
The application relates to a wall-hanging stove smoke tube detection method, a wall-hanging stove smoke tube detection device and a wall-hanging stove, wherein the method comprises the following steps: acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace; calculating actual combustion power of the wall-mounted furnace according to the actual water flow data; determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to actual water flow data; comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result; and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information. The actual fan rotating speed and the actual combustion power are compared with the theoretical combustion power and the theoretical fan rotating speed, whether the smoke tube is blocked or not is accurately and reliably detected, when the smoke tube is determined to be blocked according to the detection result, the smoke tube blocking prompt information is output to remind a user of timely overhauling, smoke emission caused by smoke tube blocking is avoided not conforming to the national standard, and energy waste can be reduced.
Description
Technical Field
The application relates to the technical field of equipment detection, in particular to a wall-mounted furnace smoke tube detection method and device and a wall-mounted furnace.
Background
The wall-mounted boiler is a gas heating and water heating dual-purpose boiler, has a powerful household central heating function, can meet the heating requirements of multiple rooms, can set comfortable temperature at will according to the requirements in each room, can provide large-flow constant-temperature sanitary hot water, and is used in places such as household bathing and kitchens.
The smoke tube of the full-premix wall hanging furnace is arranged outdoors, the outdoor environment is changeable, and the situation of blocking the smoke tube is easy to happen. The blockage can not completely block the smoke pipe, the equipment can also operate, but the smoke emission does not accord with the national standard during the operation, and the energy consumption of the whole machine is abnormal, so that the waste is caused. How to accurately and reliably detect whether the smoke tube is blocked is a problem to be solved urgently.
Disclosure of Invention
Therefore, it is necessary to provide a wall-hanging stove smoke tube detection method and device and a wall-hanging stove, which can accurately and reliably detect whether a smoke tube is blocked or not, aiming at the problems that the emission is not in accordance with the national standard due to the smoke tube blockage of the traditional wall-hanging stove and the waste is caused by the abnormal energy consumption of the whole machine.
A wall-hanging stove smoke tube detection method comprises the following steps:
acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace;
calculating actual combustion power of the wall-mounted boiler according to the actual water flow data;
determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to the actual water flow data;
comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result;
and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information.
In one embodiment, the actual water flow data includes an actual inlet water temperature, an actual outlet water temperature, and an actual circulating water flow rate.
In one embodiment, the calculating the actual combustion power of the wall-hanging stove according to the actual water flow data includes:
P＝(4.18/60)×Q×ΔT
wherein, P is the actual combustion power, Q is the actual circulating water flow, and Delta T represents the difference between the actual outlet water temperature and the actual inlet water temperature.
In one embodiment, comparing the actual fan speed and the actual combustion power with the theoretical combustion power and the theoretical fan speed to obtain a detection result includes:
and if the actual fan rotating speed is greater than the theoretical fan rotating speed and the actual combustion power is less than the theoretical combustion power, the detection result indicates that the smoke pipe is blocked.
In one embodiment, the actual fan speed is greater than the theoretical fan speed, and is: and the actual fan rotating speed deviates from a theoretical fan rotating speed curve in unit time, wherein the theoretical fan rotating speed curve represents that the gas air input and the theoretical fan rotating speed are in a direct proportion relation.
In one embodiment, after comparing the actual fan rotation speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotation speed to obtain a detection result, the method further includes:
and if the detection result shows that the smoke tube is not blocked and the actual fan rotating speed is greater than the theoretical fan rotating speed, outputting the prompt information of the wall-hanging furnace abnormity.
A hanging stove tobacco pipe detection device includes:
the data acquisition module is used for acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace;
the data processing module is used for calculating actual combustion power of the wall-mounted boiler according to the actual water flow data;
the data transferring module is used for determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to the actual water flow data;
the data analysis module is used for comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result;
and the information prompting module is used for outputting the smoke pipe blockage prompting information when the detection result is that the smoke pipe is blocked.
In one embodiment, the information prompt module is further configured to output a prompt message of the wall-hanging stove when the detection result indicates that the smoke tube is not blocked and the actual fan speed is greater than the theoretical fan speed.
The utility model provides a hanging stove, includes rivers data detection device, fan and controlling means, rivers data detection device connects controlling means, controlling means connects the fan, rivers data detection device is used for detecting the actual rivers data of hanging stove and sends to controlling means, controlling means is used for carrying out hanging stove tobacco pipe according to foretell method and detects.
In one embodiment, the wall-hanging stove further comprises an information prompting device connected with the control device.
According to the wall-mounted furnace smoke tube detection method and device and the wall-mounted furnace, the actual combustion power of the wall-mounted furnace, the corresponding theoretical combustion power and the theoretical fan rotating speed are respectively determined according to the actual water flow data of the wall-mounted furnace. The actual fan rotating speed and the actual combustion power are compared with the theoretical fan rotating speed and the theoretical combustion power, whether the smoke tube is blocked or not is accurately and reliably detected, when the smoke tube is determined to be blocked according to the detection result, the smoke tube blocking prompt information is output to remind a user of timely overhauling, the situation that smoke emission is not in accordance with the national standard due to the fact that the smoke tube is blocked is avoided, and energy waste can be reduced.
Drawings
FIG. 1 is a flow chart of a wall-hanging boiler flue tube detection method in one embodiment;
FIG. 2 is a flow chart of a wall-hanging boiler flue tube detection method in another embodiment;
FIG. 3 is a block diagram of a wall-mounted boiler flue tube detection device in an embodiment;
FIG. 4 is a schematic view of a wall-hanging stove in one embodiment;
fig. 5 is a schematic structural view of a wall-hanging stove in another 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.
In one embodiment, a method for detecting a smoke tube of a wall-hanging stove is provided, where the wall-hanging stove may be an open wall-hanging stove or a closed wall-hanging stove, as shown in fig. 1, and the method includes:
step S110: and acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace.
Specifically, the actual water flow data of the wall-hanging stove can be detected by the water flow data detection device and fed back to the control device. The control device is connected with the fan of the wall-mounted furnace and used for collecting the actual rotating speed of the fan. The actual water flow data specifically comprises data such as water outlet temperature, water inlet temperature, water flow or water flow speed, and the wall-mounted furnace controls the air inflow of the fuel gas by adjusting the air displacement of the fan. The control device can adopt an independent controller or an original main control panel of the wall-mounted boiler.
In one embodiment, the actual water flow data includes an actual inlet water temperature, an actual outlet water temperature, and an actual circulating water flow rate. Specifically, rivers data detection device can include into water temperature sensing package, play water temperature sensing package and rivers meter, and the temperature sensing package that intakes sets up the water inlet at the hanging stove, goes out the water temperature sensing package and sets up the delivery port at the hanging stove, and the rivers meter sets up in the rivers pipeline in the hanging stove. The actual water inlet temperature, the actual water outlet temperature and the actual circulating water flow are collected and sent to the control device to be used for subsequent analysis of the actual combustion power, the theoretical combustion power and the theoretical fan rotating speed.
Step S120: and calculating the actual combustion power of the wall-hanging furnace according to the actual water flow data.
Specifically, after the control device receives the collected actual inlet water temperature, the actual outlet water temperature and the actual circulating water flow, the current actual combustion power of the wall-hanging furnace can be calculated according to actual data. In one embodiment, step S120 includes:
P＝(4.18/60)×Q×ΔT
where P is the actual combustion power, Q is the actual circulating water flow, Δ T represents the difference between the actual leaving water temperature and the actual entering water temperature, and × represents the multiplication.
Step S130: and determining the theoretical combustion power and the theoretical fan rotating speed of the wall-mounted furnace according to the actual water flow data.
The control device can reserve the corresponding theoretical fan rotating speed and the corresponding theoretical combustion power under the condition of each theoretical inlet water temperature, each theoretical outlet water temperature and each theoretical circulating water flow in advance. Wherein, can not take place to block up at the tobacco pipe, hanging stove normal operating, gather hanging stove's the temperature of intaking, play water temperature and circulating water flow to and the fan rotational speed and the combustion power that correspond under the different situations. According to data collected during normal operation of the wall-mounted boiler, a corresponding relation between the inlet water temperature, the outlet water temperature, the circulating water flow and the combustion power under the theoretical condition is established. Further, the corresponding relation between the combustion power and the fan rotating speed under the theoretical condition can be determined by recording the fan rotating speed under the condition of different combustion powers.
Correspondingly, the control device can directly obtain the theoretical combustion power and the theoretical fan rotating speed under the theoretical condition through actually acquiring the water inlet temperature, the water outlet temperature and the circulating water flow according to the corresponding relation among the stored water inlet temperature, the stored water outlet temperature, the stored circulating water flow, the stored combustion power and the stored fan rotating speed under the theoretical condition.
Step S140: and comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result. The control device compares the collected actual fan rotating speed and the calculated actual combustion power with the theoretical fan rotating speed and the theoretical combustion power under the adjusted theoretical condition, analyzes the magnitude relation between the actual fan rotating speed and the theoretical fan rotating speed and the magnitude relation between the actual combustion power and the theoretical combustion power, and obtains the detection result of whether the smoke pipe is blocked.
Step S150: and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information.
When the control device detects that the smoke tube is blocked, the information prompting device can be controlled to output smoke tube blocking prompting information to remind a user of timely overhauling, and smoke emission is prevented from being influenced due to smoke tube blocking. The information prompting device can be a prompting lamp, a loudspeaker or a display screen and the like. The specific mode of outputting the smoke tube blockage prompt information is not unique, the prompt lamp can be controlled to flicker, the loudspeaker can be controlled to broadcast voice information, or the display screen can be controlled to display text or picture information and the like, and the prompt can also be performed by combining more than two modes, such as simultaneous audible and visual prompt. In this embodiment, the information prompt device is a display screen, and when the smoke tube is blocked, the control device controls a display interface of the display screen to display smoke tube blocking prompt information.
According to the wall-mounted furnace smoke tube detection method, the actual combustion power of the wall-mounted furnace, the corresponding theoretical combustion power and the theoretical fan rotating speed are respectively determined according to the actual water flow data of the wall-mounted furnace. The actual fan rotating speed and the actual combustion power are compared with the theoretical fan rotating speed and the theoretical combustion power, whether the smoke tube is blocked or not is accurately and reliably detected, when the smoke tube is determined to be blocked according to the detection result, the smoke tube blocking prompt information is output to remind a user of timely overhauling, the situation that smoke emission is not in accordance with the national standard due to the fact that the smoke tube is blocked is avoided, and energy waste can be reduced.
In one embodiment, step S140 includes: and if the actual fan rotating speed is greater than the theoretical fan rotating speed and the actual combustion power is less than the theoretical combustion power, the detection result indicates that the smoke pipe is blocked.
Specifically, the control device compares the actual fan rotating speed with the theoretical fan rotating speed, and compares the actual combustion power with the theoretical combustion power. When the actual fan rotational speed is greater than the theoretical fan rotational speed, the gas input of hanging stove is relative increase, if hanging stove normal operating, the actual combustion power of hanging stove should also correspondingly increase this moment. And if the actual fan rotating speed is larger than the theoretical fan rotating speed, the actual combustion power is smaller than the theoretical combustion power on the contrary, the air outlet quantity of the wall-mounted furnace is reduced due to the blockage of the smoke pipe, and the reduction of the air outlet quantity reduces the total air input of the gas and the air of the wall-mounted furnace, so that the gas combustion is insufficient and the combustion power is reduced. Therefore, when the actual fan rotating speed is larger than the theoretical fan rotating speed and the actual combustion power is smaller than the theoretical combustion power, the control device can think that the smoke pipe of the wall-mounted furnace is blocked, and the detection is quick and accurate.
Further, in one embodiment, the actual fan speed is greater than the theoretical fan speed by: and the actual fan rotating speed deviates from a theoretical fan rotating speed curve in unit time, wherein the theoretical fan rotating speed curve represents that the gas air input and the theoretical fan rotating speed are in a direct proportion relation. The specific value of the unit time is not unique, and the control device can form a fan rotating speed curve chart in advance according to data collected when the wall-mounted furnace normally operates and store the fan rotating speed curve chart as a theoretical fan rotating speed curve. The theoretical fan rotating speed curve represents the change process of the fan rotating speed when the wall-mounted furnace normally operates. When the actual fan rotating speed detected at a certain moment is larger than the theoretical fan rotating speed at the corresponding moment, the current actual fan rotating speed is compared with the theoretical fan rotating speed curve, and if the rotating speed deviates from the normal theoretical fan rotating speed curve in unit time, the fan rotating speed is increased in a mutable mode. And when the rotating speed of the fan is increased in a sudden way, if the actual combustion power is smaller than the theoretical combustion power, the smoke pipe is judged to be blocked, otherwise, other abnormity is judged.
In one embodiment, as shown in fig. 2, after step S140, the method further includes step S160.
S160: and if the detection result shows that the smoke tube is not blocked and the actual fan rotating speed is greater than the theoretical fan rotating speed, outputting prompt information of the wall-hanging furnace abnormity.
Correspondingly, if the fan rotating speed is increased in a sudden manner and the control device detects that the smoke pipe is not blocked, the fan rotating speed is increased in a sudden manner possibly due to other abnormalities of the wall-hanging stove, and the prompt information of the wall-hanging stove is output so that a user can timely perform abnormality detection. The specific mode of outputting the abnormal prompt information of the wall-mounted boiler is not unique, and the abnormal prompt information can be obtained by controlling the prompt lamp to flicker and controlling the loudspeaker to broadcast voice information or controlling the display screen to display text or picture information and the like. In this embodiment, when the wall-hanging stove is abnormal, the control device controls the display interface of the display screen to display the prompt message of the wall-hanging stove.
It should be understood that although the various steps in the flow charts of fig. 1-2 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. 1-2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In an embodiment, a smoke tube detection device for a wall-hanging stove is further provided, and the wall-hanging stove may be an open wall-hanging stove or a closed wall-hanging stove, as shown in fig. 3, the device includes a data acquisition module 110, a data processing module 120, a data retrieving module 130, a data analysis module 140, and an information prompting module 150.
The data acquisition module 110 is used for acquiring actual water flow data and actual fan rotating speed of the wall-hanging stove.
The data processing module 120 is used for calculating the actual combustion power of the wall-hanging stove according to the actual water flow data.
The data retrieving module 130 is configured to determine theoretical combustion power and theoretical fan rotation speed of the wall-hanging stove according to actual water flow data.
The data analysis module 140 is configured to compare the actual fan rotation speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotation speed to obtain a detection result.
The information prompt module 150 is configured to output a smoke tube blockage prompt message when the detection result indicates that the smoke tube is blocked.
In one embodiment, the actual water flow data includes an actual inlet water temperature, an actual outlet water temperature, and an actual circulating water flow rate.
In one embodiment, the data processing module 120 calculates the actual combustion power of the wall-hanging stove according to the actual water flow data, including:
P＝(4.18/60)×Q×ΔT
where P is the actual combustion power, Q is the actual circulating water flow, Δ T represents the difference between the actual leaving water temperature and the actual entering water temperature, and × represents the multiplication.
In one embodiment, if the actual fan speed is greater than the theoretical fan speed and the actual combustion power is less than the theoretical combustion power, the detection result is that the smoke tube is blocked.
Further, in one embodiment, the actual fan speed is greater than the theoretical fan speed by: and the actual fan rotating speed deviates from a theoretical fan rotating speed curve in unit time, wherein the theoretical fan rotating speed curve represents that the gas air input and the theoretical fan rotating speed are in a direct proportion relation.
In one embodiment, the information prompt module 150 is further configured to output a prompt message of an abnormal condition of the wall-hanging stove when the detection result indicates that the smoke tube is not blocked and the actual fan speed is greater than the theoretical fan speed.
For specific limitations of the wall-hanging stove smoke tube detection device, reference may be made to the above limitations of the wall-hanging stove smoke tube detection method, which are not described herein again. All modules in the wall-mounted furnace smoke tube detection device can be completely or partially realized through 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.
Above-mentioned hanging stove tobacco pipe detection device compares actual fan rotational speed, actual combustion power and theoretical combustion power, theoretical fan rotational speed, and whether accurate reliable detection tobacco pipe blocks up, when confirming that the tobacco pipe takes place to block up according to the testing result, output tobacco pipe blocks up prompt information and reminds the user in time to overhaul, avoids leading to the fume emission to be not conform to the national standard because of the tobacco pipe blocks up, can also reduce the energy waste.
In one embodiment, there is provided a control device comprising a memory and a processor, the memory having stored therein a computer program that when executed by the processor performs the steps of: acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace; calculating actual combustion power of the wall-mounted furnace according to the actual water flow data; determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to actual water flow data; comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result; and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the actual fan rotating speed is greater than the theoretical fan rotating speed and the actual combustion power is less than the theoretical combustion power, the detection result indicates that the smoke pipe is blocked.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the detection result shows that the smoke tube is not blocked and the actual fan rotating speed is greater than the theoretical fan rotating speed, outputting prompt information of the wall-hanging furnace abnormity.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace; calculating actual combustion power of the wall-mounted furnace according to the actual water flow data; determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to actual water flow data; comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result; and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information.
In one embodiment, the computer program when executed by the processor further performs the steps of: and if the actual fan rotating speed is greater than the theoretical fan rotating speed and the actual combustion power is less than the theoretical combustion power, the detection result indicates that the smoke pipe is blocked.
In one embodiment, the computer program when executed by the processor further performs the steps of: and if the detection result shows that the smoke tube is not blocked and the actual fan rotating speed is greater than the theoretical fan rotating speed, outputting prompt information of the wall-hanging furnace abnormity.
It will be understood by those of ordinary skill in the art that all or a portion of the processes of the methods of the embodiments described above may be implemented by a computer program that may be stored on a non-volatile computer-readable storage medium, which when executed, may include the processes of the embodiments of the methods described above, wherein any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory.
In one embodiment, a wall-hanging stove is also provided, and the wall-hanging stove may be an open wall-hanging stove or a closed wall-hanging stove. As shown in fig. 4, the wall-hanging stove includes a water flow data detection device 210, a fan 220 and a control device 230, the water flow data detection device 210 is connected to the control device 230, the control device 230 is connected to the fan 220, the water flow data detection device 210 is configured to detect actual water flow data of the wall-hanging stove and send the actual water flow data to the control device 230, and the control device 230 is configured to perform smoke tube detection of the wall-hanging stove according to the above-mentioned method.
The actual water flow data specifically comprises data such as water outlet temperature, water inlet temperature, water flow or water flow speed, and the wall-mounted furnace controls the air inflow of the fuel gas by adjusting the air displacement of the fan. The control device can adopt an independent controller or an original main control panel of the wall-mounted boiler. In one embodiment, the actual water flow data includes an actual inlet water temperature, an actual outlet water temperature, and an actual circulating water flow rate. Specifically, the water flow data detecting device 210 may include a water inlet thermal bulb, a water outlet thermal bulb and a water flow meter connected to the control device 230, the water inlet thermal bulb is disposed at a water inlet of the wall-hanging stove, the water outlet thermal bulb is disposed at a water outlet of the wall-hanging stove, and the water flow meter is disposed in a water flow pipeline of the wall-hanging stove.
The control device 230 can pre-maintain the corresponding theoretical fan rotation speed and the corresponding theoretical combustion power under the condition of each theoretical inlet water temperature, each theoretical outlet water temperature and each theoretical circulating water flow. When the smoke tube is not blocked and the wall-mounted furnace normally operates, the water inlet temperature, the water outlet temperature and the circulating water flow of the wall-mounted furnace are collected, and the corresponding fan rotating speed and the combustion power are obtained under different conditions. According to data collected during normal operation of the wall-mounted boiler, a corresponding relation between the inlet water temperature, the outlet water temperature, the circulating water flow and the combustion power under the theoretical condition is established. Further, the corresponding relation between the combustion power and the fan rotating speed under the theoretical condition can be determined by recording the fan rotating speed under the condition of different combustion powers.
After receiving the collected actual inlet water temperature, actual outlet water temperature and actual circulating water flow, the control device 230 can calculate the current actual combustion power of the wall-hanging stove according to the actual data. Then, the control device 230 may directly obtain the theoretical combustion power and the theoretical fan rotation speed under the theoretical condition through the actually acquired water inlet temperature, water outlet temperature, and circulating water flow rate according to the stored corresponding relationship between the water inlet temperature, the water outlet temperature, the circulating water flow rate, the combustion power, and the fan rotation speed under the theoretical condition.
The control device 230 compares the collected actual fan rotation speed and the calculated actual combustion power with the theoretical fan rotation speed and the theoretical combustion power under the adjusted theoretical condition, and analyzes the magnitude relation between the actual fan rotation speed and the theoretical fan rotation speed and the magnitude relation between the actual combustion power and the theoretical combustion power to obtain the detection result of whether the smoke tube is blocked.
Above-mentioned hanging stove compares actual fan rotational speed, actual combustion power and theoretical combustion power, theoretical fan rotational speed, and whether accurate reliable detection tobacco pipe blocks up, when confirming that the tobacco pipe takes place to block up according to the testing result, outputs the tobacco pipe and blocks up prompt message and reminds the user in time to overhaul, avoids leading to the fume emission to be not conform to the national standard because of the tobacco pipe blocks up, can also reduce the energy waste.
In one embodiment, as shown in fig. 5, the wall-hanging stove further comprises an information prompting device 240 connected to the control device 230. When the detection result indicates that the smoke tube is blocked, the control device 230 can control the information prompting device 240 to output smoke tube blocking prompting information to prompt the user to overhaul in time, so that the influence on smoke emission due to smoke tube blocking is avoided. The specific mode of outputting the smoke tube blockage prompt information is not unique, the prompt lamp can be controlled to flicker, the loudspeaker can be controlled to broadcast voice information, or the display screen can be controlled to display text or picture information and the like, and the prompt can also be performed by combining more than two modes, such as simultaneous audible and visual prompt. In this embodiment, the information prompt device 240 is a display screen, and when the smoke tube is blocked, the control device 230 controls the display interface of the display screen to display the smoke tube blockage prompt information.
Further, in one embodiment, the control device 230 further outputs the hanging stove abnormality prompting message when the detection result indicates that the smoke pipe is not blocked and the actual fan speed is greater than the theoretical fan speed. The specific mode of outputting the abnormal prompt information of the wall-mounted boiler is not unique, and the abnormal prompt information can be obtained by controlling the prompt lamp to flicker and controlling the loudspeaker to broadcast voice information or controlling the display screen to display text or picture information and the like. In this embodiment, when the wall-hanging stove is abnormal, the control device 230 controls the display interface of the display screen to display the prompt message of the wall-hanging stove.
In order to better understand the above wall-hanging furnace smoke tube detection method, device and wall-hanging furnace, a fully premixed wall-hanging furnace is taken as an example for detailed explanation.
The application provides a mix formula hanging stove in advance entirely, adopts the air input of controlling the gas by the fan displacement. When the smoke pipe is normal, the theoretical combustion power is preset in the main controller under different water inlet temperature values at the rotating speed of each fan. When the smoke tube is abnormal, the rotating speed of the fan at the moment is detected, and the actual combustion power is calculated by detecting the water inlet temperature and the water outlet temperature and compared with the theoretical combustion power, so that the conclusion whether the smoke tube is normal can be obtained. And then the information prompting device prompts the user.
Specifically, theoretical inlet water temperatures, theoretical outlet water temperatures and theoretical circulating water flow rates are preset on a main control board program of the full-premix wall-hanging furnace, and the corresponding theoretical fan rotating speed and the corresponding theoretical combustion power are set. The whole premixed wall hanging furnace is correctly installed, and the wall hanging furnace normally runs and burns after the debugging of professional personnel is finished under the condition that the smoke tube is checked to be free of foreign matter blockage. When the air conditioner runs normally, a main control program on the main control board records the actual water inlet temperature, the actual water outlet temperature, the actual circulating water flow, the corresponding combustion power and the rotating speed of the fan under the actual combustion power. Meanwhile, the main control program forms a theoretical fan rotating speed curve graph according to the collected fan rotating speed.
When the smoke pipe is blocked, the whole machine detects the actual water inlet temperature, the actual water outlet temperature, the actual circulating water flow and the current fan rotating speed when running. And calculating through a main control program to obtain the current actual combustion power.
P＝(4.18/60)×Q×ΔT
Where P is the actual combustion power, Q is the actual circulating water flow, Δ T represents the difference between the actual leaving water temperature and the actual entering water temperature, and × represents the multiplication.
And (3) comparing with preset theoretical data: and the main control program calls preset theoretical combustion power and theoretical fan rotating speed according to the actually detected water flow and inlet water temperature, and actual data and theoretical data are compared.
If the current actual fan rotating speed is larger than the theoretical fan rotating speed, and the actual fan rotating speed at the moment is compared with a theoretical fan rotating speed curve graph in normal operation, if the actual fan rotating speed is increased in a sudden mode (compared with a theoretical fan rotating speed curve, the rotating speed deviates from the theoretical fan rotating speed curve in unit time, wherein the theoretical fan rotating speed curve is that the gas inflow is in direct proportion to the fan rotating speed), and the actual combustion power is smaller than the theoretical combustion power, the blockage of the smoke pipe can be judged, a display interface displays a smoke pipe blockage prompt, and otherwise, other abnormalities exist. The principle is as follows: the total amount of the gas inlet amount and the air inlet amount of the full-premixing type wall-hanging furnace is reduced if the air outlet amount is reduced due to the blockage of the smoke pipe. The total amount of intake air and intake air is reduced, and the rotational speed of the fan is increased so that the intake air is increased, and thus the amount of intake air is reduced to cause insufficient combustion, resulting in a reduction in combustion power.
After the abnormal condition occurs and is maintained by professional maintenance personnel, the main control program records the rotating speed of the fan under each combustion power again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 (10)
1. A wall-hanging stove tobacco pipe detection method is characterized by comprising the following steps:
acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace;
calculating actual combustion power of the wall-mounted boiler according to the actual water flow data;
determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to the actual water flow data;
comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result;
and if the detection result indicates that the smoke tube is blocked, outputting smoke tube blocking prompt information.
2. The wall-hanging fire tube detection method of claim 1, wherein the actual water flow data includes an actual inlet water temperature, an actual outlet water temperature, and an actual circulating water flow rate.
3. The wall-hanging stove smoke tube detection method of claim 2, wherein the calculating the actual combustion power of the wall-hanging stove according to the actual water flow data comprises:
P＝(4.18/60)×Q×ΔT
wherein, P is the actual combustion power, Q is the actual circulating water flow, and Delta T represents the difference between the actual outlet water temperature and the actual inlet water temperature.
4. The wall-hanging furnace smoke tube detection method according to claim 1, wherein comparing the actual fan rotation speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotation speed to obtain a detection result comprises:
and if the actual fan rotating speed is greater than the theoretical fan rotating speed and the actual combustion power is less than the theoretical combustion power, the detection result indicates that the smoke pipe is blocked.
5. The wall-hanging furnace smoke tube detection method of claim 4, wherein the actual fan speed is greater than the theoretical fan speed by: and the actual fan rotating speed deviates from a theoretical fan rotating speed curve in unit time, wherein the theoretical fan rotating speed curve represents that the gas air input and the theoretical fan rotating speed are in a direct proportion relation.
6. The wall-hanging boiler flue pipe detection method of claim 1, wherein after comparing the actual fan rotation speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotation speed to obtain a detection result, the method further comprises:
and if the detection result shows that the smoke tube is not blocked and the actual fan rotating speed is greater than the theoretical fan rotating speed, outputting prompt information of the wall-hanging furnace abnormity.
7. The utility model provides a hanging stove tobacco pipe detection device which characterized in that includes:
the data acquisition module is used for acquiring actual water flow data and actual fan rotating speed of the wall-mounted furnace;
the data processing module is used for calculating actual combustion power of the wall-mounted boiler according to the actual water flow data;
the data transferring module is used for determining theoretical combustion power and theoretical fan rotating speed of the wall-mounted boiler according to the actual water flow data;
the data analysis module is used for comparing the actual fan rotating speed and the actual combustion power with the theoretical combustion power and the theoretical fan rotating speed to obtain a detection result;
and the information prompting module is used for outputting the smoke pipe blockage prompting information when the detection result is that the smoke pipe is blocked.
8. The wall-hanging furnace smoke tube detection device as claimed in claim 7, wherein the information prompt module is further configured to output a wall-hanging furnace abnormality prompt message when the detection result indicates that the smoke tube is not blocked and the actual fan speed is greater than the theoretical fan speed.
9. A wall-hanging stove is characterized by comprising a water flow data detection device, a fan and a control device, wherein the water flow data detection device is connected with the control device, the control device is connected with the fan, the water flow data detection device is used for detecting actual water flow data of the wall-hanging stove and sending the actual water flow data to the control device, and the control device is used for detecting a smoke tube of the wall-hanging stove according to the method of any one of claims 1 to 6.
10. The hanging stove as claimed in claim 9, further comprising an information prompting device connected to the control device.
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