A control method and system for a condensing water heater

Abstract

The present invention belongs to the field of condensing water heater data processing, and proposes a control method and system for a condensing water heater, the method comprising the following steps: obtaining the actual speed of the fan and the liquid level data of the condensing water heater; calculating the liquid level effective speed; obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed; detecting the current actual speed of the fan and the current liquid level data of the condensing water heater; if the current actual speed of the fan is greater than or equal to the warning actual speed value corresponding to the current liquid level data, then starting the protection mechanism of the condensing water heater. The control method according to the embodiment of the present invention can ensure that the system can respond to the liquid level change in time, can adapt to different liquid level change conditions more quickly, thereby starting the protection mechanism more timely, and reducing the problem of hysteresis in the starting protection mechanism caused by the delay of sensor data under extreme conditions or equipment aging.

Description

Technical Field

[0001] The invention belongs to the field of condensing water heater data processing, and in particular relates to a control method and system for a condensing water heater. Background Art

[0002] At present, in the system of condensing water heater, when condensing water blockage is detected, the system will increase the fan speed by increasing the fan power, and then the safety protection warning will start the protection mechanism by judging whether the fan speed is greater than the pre-set warning wind speed. For example, the patent number is: CN114963530A, and the name is: Control method and device of condensing water heater and control method proposed by Chinese invention technology patent of condensing water heater.

[0003] However, the change in fan speed is not instantaneous, and it takes a certain amount of time to reach the expected speed, which will produce lag. If a simple warning is given, the condensate blockage will occur some time before the warning is successfully issued. The lack of timeliness and timely triggering of the protection mechanism will also cause irreversible damage to the condensing water heater to a greater or lesser extent. Moreover, if the condensate level rises rapidly, the condensate may have accumulated to a dangerous level when the fan speed has not yet reached the warning value, which will cause the system to fail to detect the blockage and activate the protection mechanism in time, which may lead to problems such as condensate backflow or poor flue gas discharge. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first object of the present invention is to provide a control method for a condensing water heater, which can ensure that the system can respond to the liquid level change in a timely manner, can adapt to different liquid level change conditions more quickly, so as to start the protection mechanism more timely, and reduce the problem of hysteresis in the start-up protection mechanism caused by the delay of sensor data under extreme conditions or equipment aging;

[0005] A second object of the present invention is to provide a control system for a condensing water heater.

[0006] To achieve the above object, a first aspect of the present invention provides a control method for a condensing water heater, the method comprising the following steps:

[0007] S100, obtaining actual rotation speed of the fan and liquid level data of the condensing water heater;

[0008] S200, calculating the liquid level effective speed according to the actual speed of the fan and the liquid level data of the condensing water heater;

[0009] S300, obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed;

[0010] S400, detecting the actual speed of the current fan and the current liquid level data of the condensing water heater, and judging whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed values ​​of the warning corresponding to different liquid level data;

[0011] S500: If the actual speed of the current fan is greater than or equal to the warning actual speed value corresponding to the current liquid level data, the protection mechanism of the condensing water heater is activated.

[0012] The control method according to the embodiment of the present invention can ensure that the system can respond to liquid level changes in a timely manner and can adapt to different liquid level changes more quickly, so as to start the protection mechanism more timely and reduce the lag problem of starting the protection mechanism caused by delays in sensor data under extreme conditions or equipment aging.

[0013] Furthermore, the condensing water heater includes a main control panel, a fan, a condensing heat exchanger and a smoke pipe.

[0014] Furthermore, in step S100, the actual rotation speed of the fan and the liquid level data of the condensing water heater are obtained through a Hall sensor and a liquid level sensor.

[0015] Specifically, the actual speed of the fan and the liquid level data of the condensing water heater are obtained as M liquid level data T(i) and the actual speed under each liquid level data T(i) during the operation of the condensing water heater in the last 7-30 days, i=1,2,…,M; the actual speed under the i-th liquid level data T(i) is represented as tR(i), where i represents the liquid level data identifier, and M represents the number of liquid level data obtained, where the actual speed is the fan speed value obtained when the fan maintains the same liquid level data for 5-10 minutes, and the liquid level data is the liquid level height obtained by the liquid level sensor when the fan maintains the same speed for 5-10 minutes. The actual speeds tR(1), tR(2),…, tR(M) under all liquid level data form an actual speed sequence, and all liquid level data T(1), T(2),…, T(M) form a liquid level data sequence, the average value of all elements in the liquid level data sequence is recorded as TK, and the liquid level data with the largest liquid level height in the liquid level data sequence is recorded as TY.

[0016] Further, in S200, calculating the liquid level effective speed by using the actual speed of the fan and the liquid level data of the condensing water heater includes:

[0017] Among them, the liquid level effective speed is the average actual speed calculated by each actual speed with the same liquid level height;

[0018] The liquid level data in the liquid level data sequence are traversed within the range of i. For each liquid level data T(i) in the liquid level data sequence (starting from T(1)), the following steps are performed: Check whether there is the same liquid level data as T(i) in the liquid level data sequence. If there is the same liquid level data, then the actual speed corresponding to each liquid level data that is the same as the liquid level data T(i) in the entire liquid level data sequence is averaged and recorded as the effective speed S(i). If there is no same liquid level data, then the actual speed corresponding to T(i) is directly recorded as the effective speed S(i).

[0019] Create a blank sequence recorded as the liquid level effective speed sequence, and import the actual speeds with different liquid level data into the liquid level effective speed sequence (that is, only one effective speed with the same liquid level data is imported into the liquid level effective speed sequence, and the effective speed without the same liquid level data is directly imported into the liquid level effective speed sequence), and record the elements in the liquid level effective speed sequence as liquid level effective speed K(p), p = 1, 2, ..., G, where G is the number of non-repeating elements in the liquid level data sequence; the liquid level data corresponding to the liquid level effective speed K(p) is recorded as the effective liquid level L(p).

[0020] Furthermore, each calculated liquid level effective speed K(p) is associated with a corresponding effective liquid level L(p), and this liquid level effective speed is the average value of all actual speed data at the effective liquid level.

[0021] In step S300, the method for obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed includes:

[0022] Furthermore, the warning actual speed value corresponding to different liquid level data is Z(p)=K(p)×1.25;

[0023] The beneficial effect of this step is: using simple multiplication operations, the actual speed value for warning can be quickly obtained, which is suitable for prediction needs under general circumstances. Although the algorithm for the actual speed value for warning corresponding to different liquid level data is simple, for most actual application scenarios, this method is accurate enough and can effectively cope with general liquid level changes.

[0024] In the condensing water heater system, when condensate blockage is detected, the system will increase the fan speed by increasing the fan power. However, the change in fan speed is not instantaneous, and it takes a certain amount of time to reach the expected speed, which will cause hysteresis. If a simple warning is given, the condensate blockage will occur for a period of time before the warning is successful. The lack of timeliness will cause irreversible damage to the condensing water heater if the protection mechanism is triggered in time. Moreover, if the condensate level rises quickly, the condensate may have accumulated to a dangerous level before the fan speed reaches the warning value, which will cause the system to fail to detect the blockage and activate the protection mechanism in time, which may lead to problems such as condensate backflow or poor flue gas discharge.

[0025] In order to solve the above problem, an optimal method is proposed in this step to obtain the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed:

[0026] Preferably, the warning actual liquid level speed difference WX(p) corresponding to different liquid level data is calculated, and the warning actual speed value corresponding to the different liquid level data is calculated according to the warning actual liquid level speed difference WX(p);

[0027] S301, first calculate the sum of all liquid level data T(x), and then divide it by the sum of all actual rotation speeds tR(x) to obtain an average ratio of the liquid level data to the actual rotation speed;

[0028] S302, calculating the sum of the liquid level effective speed K(x), and dividing it by the sum of the corresponding liquid level data L(x), to obtain an average ratio of the liquid level effective speed to the effective liquid level;

[0029] S303, calculating the current effective ratio a(p), where the effective ratio a(p) is the ratio of the first part divided by the second part, wherein the first part of the effective ratio is the average ratio of the liquid level data and the actual speed multiplied by G, indicating the overall influence of the liquid level data; the second part is the average ratio of the liquid level effective speed and the effective liquid level plus the sum of the ratio of the liquid level effective speed K(p) to the liquid level data L(p) multiplied by G, indicating the overall influence of the liquid level effective speed and the effective liquid level based on the liquid level data and the actual speed, which can measure the global influence of the liquid level data on the effective speed;

[0030] S304, calculating the current liquid level ratio aw, where the liquid level ratio is equal to the average value TK of all elements in the liquid level data sequence divided by the maximum value TY;

[0031] S305, calculating the warning actual liquid level speed difference WX(p) by the effective ratio and the liquid level ratio, wherein the warning actual liquid level speed difference WX(p)=K(p)×a(p)×aw.

[0032] S306, calculating the warning actual speed value Z(p) corresponding to different liquid level data according to the warning actual liquid level speed difference WX(p), wherein Z(p)=K(p)+WX(p).

[0033] Among them, the effective speed ratio (or effective speed ratio) is used in the control method of the condensing water heater system to measure the influence of the liquid level effective speed and the effective liquid level on the liquid level data and the actual speed. Through the multi-level ratio analysis of the effective speed ratio, it can more accurately reflect the influence of the liquid level change on the fan speed, and can more accurately calculate the warning actual speed value, and effectively predict the possible system response. In addition, the calculation of the effective speed ratio integrates the comprehensive influence and topological changes between the real-time liquid level data and the historical actual speed data, so that the system can dynamically adjust the warning actual speed value, and can start the protection mechanism more timely according to the current functional status of the condensing water heater, reduce the system response delay caused by lag, and enable the system to start the protection mechanism earlier when the liquid level rises rapidly, avoiding potential operating problems or damage, thereby improving the system's response capability and reliability in extreme situations.

[0034] The beneficial effects of this step are: by comprehensively calculating the ratio of liquid level data to actual speed, and the ratio of liquid level effective speed to effective liquid level, the influence of liquid level change on fan speed can be more accurately reflected, and then by calculating the effective ratio and liquid level ratio, through multi-level ratio analysis, the accuracy of the calculation of the warning actual speed value is improved, and the liquid level change can be more precisely responded to. Moreover, based on the real-time calculation of the liquid level effective speed and liquid level data, the warning actual speed value is dynamically adjusted, so that the system can quickly respond to liquid level changes, which can reduce the problem of delayed start of the protection mechanism caused by lag; and the calculation of the warning actual liquid level speed difference can reflect the liquid level change trend in advance, so that the system can start the protection mechanism in time when the liquid level rises rapidly, avoiding the problem of condensate backflow or poor flue gas discharge, and improving the system's ability to respond in extreme situations.

[0035] In step S400, the method of detecting the actual speed of the current fan and the liquid level data of the current condensing water heater, and judging whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed value of the warning corresponding to different liquid level data includes:

[0036] S401, detecting the actual speed of the current fan and the liquid level data of the current condensing water heater:

[0037] First, the actual speed of the fan and the liquid level data of the condensing water heater are obtained at the current moment. These data are obtained through the Hall sensor and the liquid level sensor and are used to monitor the operating status of the system in real time.

[0038] S402. Determine whether the actual speed of the current fan is greater than or equal to the warning actual speed value according to the warning actual speed values corresponding to different liquid level data:

[0039] Specifically, for each liquid level data T detected at the current moment, find its corresponding warning actual speed value Z(p), and compare the actual speed of the current fan with Z(p).

[0040] The beneficial effect of this step is that by real-time detecting the actual speed of the fan and the liquid level data of the condensing water heater and comparing with the warning actual speed value, it ensures that the system can respond to potential condensate blockage situations in a timely and accurate manner. This not only improves the real-time monitoring ability and warning accuracy of the system, but also enhances the dynamic adjustment ability and overall safety of the system. At the same time, it simplifies the operation process and improves the user experience.

[0041] S500. If the actual speed of the current fan is greater than or equal to the warning actual speed value corresponding to the current liquid level data, then start the protection mechanism of the condensing water heater.

[0042] Specifically, if the actual speed tR of the current fan < Z(T), it means that the operating state of the condensing water heater is within the safe range and there is no need to start the protection mechanism.

[0043] If the actual speed tR of the current fan ≥ Z(T), it may indicate the existence of blockage or abnormal conditions, and it is necessary to consider starting the protection mechanism of the condensing water heater to prevent potential operation problems or damages. Among them, the protection mechanism includes:

[0044] Shutdown protection: When it is monitored that the actual speed tR of the fan reaches or exceeds the preset threshold Z(T), the control system will send a shutdown instruction to immediately stop the operation of the fan to prevent the equipment from continuing to operate under high speed or abnormal load, thereby reducing possible damages or further failures.

[0045] Alarm notification: The system starts the alarm mechanism and issues a warning to the operator or maintenance personnel through sound alarm, display screen message or remote notification, etc., to ensure that relevant personnel can immediately respond to the problem and take necessary steps to check the equipment status and take further measures.

[0046] Automatic recording of abnormalities: When an abnormality occurs, the system automatically records relevant operation data and event information, including the specific conditions and time for triggering the protection mechanism. By recording for subsequent fault diagnosis and maintenance, it helps to determine the root cause of the problem and take long-term preventive measures.

[0047] The beneficial effect of the present invention is that through the control method, the system can detect the condensate blockage more accurately and timely, and can quickly start the protection mechanism when the blockage occurs. This not only improves the accuracy of detection and the speed of system response, but also enhances the safety and reliability of the system, thereby effectively ensuring the normal operation of the equipment and the safety of users.

[0048] To achieve the above-mentioned purpose, the second aspect of the embodiment of the present invention further proposes a control system for a condensing water heater, the control system for the condensing water heater comprising: a processor, a memory and a computer program stored in the memory and executable on the processor, the processor implementing the steps in a control method for a condensing water heater when executing the computer program, the control system for the condensing water heater running on a desktop computer, a notebook, a PDA and a computing device in a cloud data center.

[0049] By executing the control method of the condensing water heater through the control system of the condensing water heater, it can be ensured that the system can respond to the liquid level change in time and can adapt to different liquid level changes more quickly, so as to start the protection mechanism more timely and reduce the lag problem of the starting protection mechanism caused by the delay of sensor data under extreme conditions or equipment aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Shown is a flow chart of a control method for a condensing water heater;

[0051] Figure 2 Shown is the control system structure diagram of a condensing water heater. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0053] Figure 1 Shown is a flow chart of a control method for a condensing water heater.

[0054] Reference Figure 1 The present invention provides a control method for a condensing water heater, the method comprising the following steps:

[0055] S100, obtaining actual rotation speed of the fan and liquid level data of the condensing water heater;

[0056] S200, calculating the liquid level effective speed according to the actual speed of the fan and the liquid level data of the condensing water heater;

[0057] S300, obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed;

[0058] S400, detecting the actual speed of the current fan and the current liquid level data of the condensing water heater, and judging whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed values ​​of the warning corresponding to different liquid level data;

[0059] S500: If the actual speed of the current fan is greater than or equal to the warning actual speed value corresponding to the current liquid level data, the protection mechanism of the condensing water heater is activated.

[0060] The control method according to the embodiment of the present invention can ensure that the system can respond to liquid level changes in a timely manner and can adapt to different liquid level changes more quickly, so as to start the protection mechanism more timely and reduce the lag problem of starting the protection mechanism caused by delays in sensor data under extreme conditions or equipment aging.

[0061] Furthermore, in step S100, the actual rotation speed of the fan and the liquid level data of the condensing water heater are obtained through a Hall sensor and a liquid level sensor.

[0062] Specifically, the actual speed of the fan and the liquid level data of the condensing water heater are obtained from the M liquid level data T(i) and the actual speed under each liquid level data T(i) during the operation of the condensing water heater in the last 7-30 days, i=1,2,…,M; the actual speed under the i-th liquid level data is represented as tR(i), where i represents the liquid level data identifier, and M represents the number of liquid level data obtained when the condensing water heater is in operation, where the actual speed is the fan speed value obtained when the fan maintains the same liquid level data for 5-10 minutes, and the liquid level data is the liquid level height obtained by the liquid level sensor when the fan maintains the same speed for 5-10 minutes. The actual speeds tR(1), tR(2),…, tR(M) under all liquid level data form an actual speed sequence, and all liquid level data T(1), T(2),…, T(M) form a liquid level data sequence, the average value of all elements in the liquid level data sequence is recorded as TK, and the liquid level data with the largest liquid level height in the liquid level data sequence is recorded as TY.

[0063] S200, calculating the liquid level effective speed according to the actual speed of the fan and the liquid level data of the condensing water heater;

[0064] The liquid level data in the liquid level data sequence are traversed within the range of i. For each liquid level data T(i) in the liquid level data sequence (starting from T(1)), the following steps are performed: Check whether there is the same liquid level data as T(i) in the liquid level data sequence. If there is the same liquid level data, then the actual speed corresponding to each liquid level data that is the same as the liquid level data T(i) in the entire liquid level data sequence is averaged and recorded as the effective speed S(i). If there is no same liquid level data, then the actual speed corresponding to T(i) is directly recorded as the effective speed S(i).

[0065] Create a blank sequence recorded as the liquid level effective speed sequence, and import the actual speeds with different liquid level data into the liquid level effective speed sequence (that is, only one effective speed with the same liquid level data is imported into the liquid level effective speed sequence, and the effective speed without the same liquid level data is directly imported into the liquid level effective speed sequence), and record the elements in the liquid level effective speed sequence as liquid level effective speed K(p), p = 1, 2, ..., G, where G is the number of non-repeating elements in the liquid level data sequence; the liquid level data corresponding to the liquid level effective speed K(p) is recorded as the effective liquid level L(p).

[0066] Furthermore, each calculated liquid level effective speed K(p) is associated with a corresponding effective liquid level L(p), and this liquid level effective speed is the average value of all actual speed data at the effective liquid level.

[0067] S300, obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed;

[0068] Furthermore, the warning actual speed value corresponding to different liquid level data is Z(p)=K(p)×1.25;

[0069] The beneficial effect of this step is: using simple multiplication operations, the actual speed value for warning can be quickly obtained, which is suitable for prediction needs under general circumstances. Although the algorithm for the actual speed value for warning corresponding to different liquid level data is simple, for most actual application scenarios, this method is accurate enough and can effectively cope with general liquid level changes.

[0070] In the condensing water heater system, when a possible condensate blockage is detected, the system will increase the fan speed by increasing the fan power. However, the change in fan speed is not instantaneous, and it takes a certain amount of time to reach the expected speed, which will cause hysteresis. If a simple warning is given, the condensate blockage will occur for a period of time before the warning is successful. The lack of timeliness will cause irreversible damage to the condensing water heater if the protection mechanism is triggered in time. Moreover, if the condensate level rises quickly, the condensate may have accumulated to a dangerous level before the fan speed reaches the warning value, which will cause the system to fail to detect the blockage in time and activate the protection mechanism, which may lead to problems such as condensate backflow or poor flue gas discharge.

[0071] In order to solve the above problem, an optimal method is proposed in this step to obtain the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed:

[0072] Preferably, the warning actual liquid level speed difference WX(p) corresponding to different liquid level data is calculated,

[0073] S301, first calculate the sum of all liquid level data T(x), and then divide it by the sum of all actual rotation speeds tR(x) to obtain an average ratio of the liquid level data to the actual rotation speed;

[0074] S302, calculating the sum of the liquid level effective rotation speed K(x), dividing it by the sum of the corresponding liquid level data L(x), and obtaining an average ratio of the liquid level effective rotation speed to the effective liquid level.

[0075] S303, calculating the current effective ratio a(p), where the effective ratio a(p) is the ratio of the first part divided by the second part, wherein the first part of the effective ratio is the average ratio of the liquid level data and the actual speed multiplied by G, indicating the overall influence of the liquid level data; the second part is the average ratio of the liquid level effective speed and the effective liquid level plus the sum of the ratio of the liquid level effective speed K(p) to the liquid level data L(p) multiplied by G, indicating the overall influence of the liquid level effective speed and the effective liquid level based on the liquid level data and the actual speed, which can measure the global influence of the liquid level data on the effective speed;

[0076] S304, calculating the current liquid level ratio aw, where the liquid level ratio is equal to the average value TK of all elements in the liquid level data sequence divided by TY;

[0077] S305, calculating the warning actual liquid level speed difference WX(p) by the effective ratio and the liquid level ratio, wherein the warning actual liquid level speed difference WX(p)=K(p)×a(p)×aw.

[0078] S306, calculating the warning actual speed value Z(p) corresponding to different liquid level data according to the warning actual liquid level speed difference WX(p), wherein Z(p)=K(p)+WX(p).

[0079] The beneficial effects of this step are:

[0080] By comprehensively calculating the ratio of liquid level data to actual speed, and the ratio of liquid level effective speed to effective liquid level, the impact of liquid level changes on fan speed can be more accurately reflected. Then, by calculating the effective ratio and liquid level ratio, multi-level ratio analysis is performed to improve the accuracy of the calculation of the actual speed value of the early warning, and the liquid level changes can be more precisely responded to. Moreover, based on the real-time calculation of the liquid level effective speed and liquid level data, the actual speed value of the early warning is dynamically adjusted, so that the system can respond quickly to liquid level changes, which can reduce the problem of delayed start-up of the protection mechanism caused by lag; and the calculation of the speed difference of the early warning actual liquid level can reflect the trend of liquid level changes in advance, so that the system can start the protection mechanism in time when the liquid level rises rapidly, avoiding the problem of condensate backflow or poor flue gas discharge, and improving the system's ability to respond in extreme situations.

[0081] S400, detecting the actual speed of the current fan and the current liquid level data of the condensing water heater, and judging whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed values ​​of the warning corresponding to different liquid level data;

[0082] S401, detecting the actual speed of the current fan and the liquid level data of the current condensing water heater:

[0083] First, the actual speed of the fan and the liquid level data of the condensing water heater are obtained at the current moment. These data are obtained through the Hall sensor and the liquid level sensor and are used to monitor the operating status of the system in real time.

[0084] S402: According to the warning actual speed values ​​corresponding to different liquid level data, it is determined whether the actual speed of the current fan is greater than or equal to the warning actual speed value:

[0085] Specifically, for each liquid level data T detected at the current moment, the corresponding warning actual speed value Z(p) is searched, and the actual speed of the current fan is compared with Z(p).

[0086] The beneficial effect of this step is: by real-time detection of the actual speed of the fan and the liquid level data of the condensing water heater, and comparing them with the actual speed value of the warning, the system can respond to potential condensate blockage in a timely and accurate manner. This not only improves the system's real-time monitoring capability and warning accuracy, but also enhances the system's dynamic adjustment capability and overall safety, while simplifying the operating process and improving the user experience.

[0087] For S500, if the actual rotation speed of the current fan is greater than or equal to the warning actual rotation speed value corresponding to the current liquid level data, the protection mechanism of the condensing water heater is activated.

[0088] Specifically, if the actual rotation speed tR of the current fan < Z(T), it means that the operating state of the condensing water heater is within the safe range and the protection mechanism does not need to be activated.

[0089] If the actual rotation speed tR of the current fan ≥ Z(T), it may indicate the existence of blockage or abnormal conditions, and it is necessary to consider activating the protection mechanism of the condensing water heater to prevent potential operating problems or damages.

[0090] The beneficial effects of the present invention are as follows: Through this control method, the system can detect the condensate blockage situation more accurately and timely, and can quickly activate the protection mechanism when the blockage occurs. This not only improves the accuracy of detection and the speed of system response, but also enhances the safety and reliability of the system, thus effectively ensuring the normal operation of the equipment and the use safety of users.

[0091] Figure 2 Shown is the structure diagram of the control system of the condensing water heater.

[0092] Refer to Figure 2 , the present invention also proposes a control system 20 of a condensing water heater. The control system 20 of the condensing water heater includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in a control method of a condensing water heater. The control system 20 of the condensing water heater runs on computing devices such as desktop computers, laptops, palmtop computers, and cloud data centers.

[0093] The control system includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it runs in the following units of the control system:

[0094] An acquisition unit 21, configured to obtain the actual rotation speed of the fan and the liquid level data of the condensing water heater;

[0095] A conversion unit 22, configured to calculate the liquid level response rotation speed through the actual rotation speed of the fan and the liquid level data of the condensing water heater;

[0096] A loading unit 23, configured to obtain the warning actual rotation speed value corresponding to different liquid level data according to the liquid level response rotation speed;

[0097] The management unit 24 is used to detect the actual speed of the current fan and the liquid level data of the current condensing water heater, and determine whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed value of the warning corresponding to the different liquid level data;

[0098] The early warning unit 25 is used to activate the protection mechanism of the condensing water heater if the actual speed of the current fan is greater than or equal to the early warning actual speed value corresponding to the current liquid level data.

[0099] The control system of the condensing water heater can be run in computing devices such as desktop computers, notebooks, PDAs, and cloud servers. The control system of the condensing water heater can include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the example is only an example of a control system 20 of a condensing water heater, and does not constitute a limitation on the control system 20 of a condensing water heater. It can include more or less components than the example, or combine certain components, or different components. For example, the control system of the condensing water heater can also include input and output devices, network access devices, buses, etc.

[0100] By executing the control method of the condensing water heater through the control system 20 of the condensing water heater, it can be ensured that the system can respond to the liquid level changes in a timely manner and can adapt to different liquid level changes more quickly, so as to start the protection mechanism more timely and reduce the lag problem of the starting protection mechanism caused by the delay of sensor data under extreme conditions or equipment aging.

[0101] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and editable read-only memory (EpROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0102] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (pGA), a field programmable gate array (fpGA), etc.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0104] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0105] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0106] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific implementation situation.

[0107] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0108] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for a condensing water heater, characterized in that: The condensing water heater comprises a main control panel, a fan, a condensing heat exchanger and a smoke pipe; The method comprises the following steps: S100, obtaining the actual speed of the fan and the liquid level data of the condensing water heater; wherein step S100 includes: obtaining the actual speed of the fan and the liquid level data of the condensing water heater as M liquid level data T(i) during the operation of the condensing water heater in the last 7-30 days, and the actual speed under each liquid level data T(i), i=1,2,…,M; the actual speed under the i-th liquid level data is expressed as tR(i), wherein i represents the liquid level data identifier, M represents the number of liquid level data obtained during the operation of the condensing water heater, wherein the actual speed Speed ​​is the fan speed value obtained when the fan maintains the same liquid level data for 5-10 minutes. The liquid level data is the liquid level height obtained by the liquid level sensor when the fan maintains the same speed for 5-10 minutes. The actual speeds tR(1), tR(2), …, tR(M) under all liquid level data are combined into an actual speed sequence; all liquid level data T(1), T(2), …, T(M) are combined into a liquid level data sequence, the average value of all elements in the liquid level data sequence is recorded as TK, and the liquid level data with the largest liquid level height in the liquid level data sequence is recorded as TY; S200, calculating the liquid level effective speed according to the actual speed of the fan and the liquid level data of the condensing water heater; S300, obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed; Wherein, step S300 includes: S301, first calculate the sum of all liquid level data T(x), and then divide it by the sum of all actual speeds tR(x) to obtain the average ratio of the liquid level data and the actual speed; S302, calculate the sum of the liquid level effective speed K(x), and divide it by the sum of the corresponding liquid level data L(x) to obtain the average ratio of the liquid level effective speed and the effective liquid level; S303, calculate the current effective ratio a(p), the effective ratio a(p) is the ratio of the first part divided by the second part, wherein the first part of the effective ratio is the average ratio of the liquid level data and the actual speed multiplied by G, which represents the overall impact of the liquid level data; the second part is the average ratio of the liquid level effective speed and the effective liquid level Add the sum of the ratios of the liquid level effective speed K(p) to the liquid level data L(p) and multiply it by G, which represents the overall influence of the liquid level effective speed and the effective liquid level based on the liquid level data and the actual speed; S304, calculate the current liquid level ratio aw, where the liquid level ratio is equal to the average value TK of all elements in the liquid level data sequence divided by TY; S305, calculate the warning actual liquid level speed difference WX(p) through the effective ratio and the liquid level ratio, where the warning actual liquid level speed difference WX(p)=K(p)×a(p)×aw; S306, calculate the warning actual speed value Z(p) corresponding to different liquid level data according to the warning actual liquid level speed difference WX(p), where Z(p)=K(p)+WX(p); S400, detecting the actual speed of the current fan and the current liquid level data of the condensing water heater, and judging whether the actual speed of the current fan is greater than or equal to the actual speed value of the warning corresponding to the current liquid level data according to the actual speed values ​​of the warning corresponding to different liquid level data; S500: If the actual speed of the current fan is greater than or equal to the warning actual speed value corresponding to the current liquid level data, the protection mechanism of the condensing water heater is activated.

2. A control method for a condensing water heater according to claim 1, characterized in that: In step S100, the actual rotation speed of the fan and the liquid level data of the condensing water heater are obtained through a Hall sensor and a liquid level sensor.

3. The control method of a condensing water heater according to claim 1, characterized in that: In S200, calculating the liquid level effective speed by using the actual speed of the fan and the liquid level data of the condensing water heater includes: The liquid level data in the liquid level data sequence are traversed within the range of i. For each liquid level data T(i) in the liquid level data sequence, starting from T(1), the following steps are performed: Check whether there is the same liquid level data as T(i) in the liquid level data sequence. If there is the same liquid level data, then the actual speed corresponding to each liquid level data in the entire liquid level data sequence that is the same as the liquid level data T(i) is averaged and recorded as the effective speed S(i). If there is no same liquid level data, then the actual speed corresponding to T(i) is directly recorded as the effective speed S(i); Create a blank sequence and record it as the liquid level effective speed sequence, and import the actual speeds with different liquid level data into the liquid level effective speed sequence, that is, only one effective speed with the same liquid level data is imported into the liquid level effective speed sequence, and the effective speed without the same liquid level data is directly imported into the liquid level effective speed sequence, and the elements in the liquid level effective speed sequence are recorded as liquid level effective speed K(p), p = 1, 2, ..., G, where G is the number of non-repeated elements in the liquid level data sequence; the liquid level data corresponding to the liquid level effective speed K(p) is recorded as the effective liquid level L(p); wherein each calculated liquid level effective speed K(p) will be associated with a corresponding effective liquid level L(p).

4. A control method for a condensing water heater according to claim 3, characterized in that: In step S300, the method for obtaining the warning actual speed value corresponding to different liquid level data according to the liquid level effective speed includes: The warning actual speed value corresponding to different liquid level data is Z(p)=K(p)×1.

25.

5. A control system for a condensing water heater, characterized in that: The control system of the condensing water heater comprises: a processor, a memory, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the steps in the control method of the condensing water heater described in any one of claims 1 to 4 are implemented.

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