Control method and control device for a heat recovery unit

Abstract

The application provides a control method and a control device of a heat and water purification integrated device. The method comprises the following steps: obtaining a target water purification flow value and a water purification flow limit value; comparing the target water purification flow value and the water purification flow limit value; increasing the water inlet flow when the water purification flow limit value is smaller than the target water purification flow value, so as to obtain an increased water inlet flow value; the increased water inlet flow value is smaller than a water inlet flow limit value; adjusting the water purification flow according to the increased water inlet flow value; and heating the purified water to obtain water meeting the water demand when the current water purification flow value is equal to the target water purification flow value. The application adjusts the water inlet flow and the water purification flow based on the water demand, so that the membrane pre-pressure of the membrane chromatograph can be controlled within a reasonable range on the premise of meeting the water demand, the service life of the membrane chromatograph is prolonged, the durability is improved, and the maintenance frequency of the device is reduced.

Description

Technical Field

[0001] This application belongs to the field of water purifier control technology, specifically relating to a control method and control device for an integrated water purifier and heat pump device. Background Technology

[0002] Current integrated water purifiers and heaters use a control method that pre-stores water in a heating tank or water tank and then extracts it for use, which poses a risk of odor. For integrated water purifiers and heaters that use direct rapid heating, the released hot water flow rate is smaller than the inlet water flow rate. Tankless rapid heating solutions generally require a booster pump to supply water to meet the downstream demand for timely water output. However, due to limited heating efficiency, the hot water supply flow rate will be much smaller than the flow rate after pressurization by the booster pump. The excess flow rate is applied before the filter membrane, causing excessive pressure before the membrane chromatography, which in turn leads to a short service life of the membrane chromatography.

[0003] Therefore, there is an urgent need for a control method for a heat exchanger that can reasonably control the membrane pre-pressure range and ensure the service life of membrane chromatography. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a control method and control device for an integrated heat and water purification system.

[0005] On the one hand, this application proposes a control method for an integrated heat dissipation and cooling device, the method comprising:

[0006] Obtain the target purified water flow rate and the purified water flow rate limit value; the target purified water flow rate is obtained by calculation and analysis based on water demand; the purified water flow rate limit value is the purified water flow rate measured when the purified water valve and the hot water pump are in the open state and the duty cycle of the hot water pump is the limit duty cycle.

[0007] Compare the target purified water flow rate value with the purified water flow rate limit value;

[0008] If the purified water flow rate threshold is less than the target purified water flow rate, the inlet water flow rate is increased to obtain an increased inlet water flow rate. The increased inlet water flow rate is less than the inlet water flow rate threshold, where the inlet water flow rate threshold is the flow rate of the inlet water when the membrane pressure of the membrane chromatography is equal to the pressure threshold. The pressure threshold is the threshold value for the membrane chromatography to be within its normal pressure range.

[0009] Adjust the purified water flow rate according to the increased influent flow rate;

[0010] Obtain the current purified water flow rate value after adjusting the purified water flow rate;

[0011] When the current purified water flow rate is equal to the target purified water flow rate, the purified water is heated to obtain water that meets the water demand.

[0012] In some possible implementations, the integrated heat and water purification device includes a hot water pump, and the method further includes:

[0013] When the water flow rate limit value is greater than the target water flow rate value, a first mapping relationship is obtained, which indicates the correspondence between the duty cycle of the hot water pump and the water flow rate value.

[0014] Based on the first mapping relationship, the target net water flow rate value is mapped to obtain the target duty cycle corresponding to the target net water flow rate value;

[0015] Adjust the current duty cycle of the hot water pump to the target duty cycle so that the current purified water flow rate is equal to the target purified water flow rate.

[0016] The purified water is heated to obtain water that meets the stated water requirements.

[0017] In some possible implementations, the integrated water purification and heating device includes a hot water pump, and the adjustment of the purified water flow rate according to the increased inlet water flow rate includes:

[0018] Obtain a first mapping relationship, which indicates the correspondence between the duty cycle of the hot water pump and the purified water flow rate;

[0019] Compare the increased influent flow rate value with the influent flow rate threshold;

[0020] If the increased inlet flow rate is equal to the inlet flow rate threshold, the current duty cycle of the hot water pump remains unchanged.

[0021] If the increased inlet flow rate is greater than the inlet flow rate threshold, the target purified water flow rate is mapped according to the first mapping relationship to obtain the target duty cycle corresponding to the target purified water flow rate; the current duty cycle of the hot water pump is adjusted to the target duty cycle to regulate the purified water flow rate.

[0022] In some possible implementations, the integrated water purification and heating device includes a pressurization device, wherein increasing the inlet water flow rate includes:

[0023] Obtain a second mapping relationship, which indicates the correspondence between the membrane inlet pressure of the membrane chromatography and the duty cycle of the pressurization device;

[0024] Based on the second mapping relationship, the pressure limit value is mapped to obtain the limit duty cycle of the booster device corresponding to the pressure limit value;

[0025] Within a range of duty cycles less than the stated limit, the current duty cycle of the booster device is increased so that the booster device increases the inlet flow rate within a range less than the stated inlet flow rate limit.

[0026] In some possible implementations, the integrated water purification and heating device includes an inlet valve and a purified water valve, and the method further includes, before comparing the target purified water flow rate value with the purified water flow rate threshold value:

[0027] Obtain the unpressurized inlet flow rate and the initial inlet flow rate;

[0028] The initial inlet flow rate value is compared with the unpressurized inlet flow rate value to obtain a first comparison result; the first comparison result is used to determine whether the duty cycle of the booster device needs to be adjusted.

[0029] The initial influent flow rate is compared with the purified water flow rate limit value to obtain a second comparison result; the second comparison result is used to determine whether the duty cycle of the hot water pump needs to be adjusted.

[0030] Wherein, the initial inlet flow rate is the inlet flow rate measured when the inlet valve is closed; the unpressurized inlet flow rate is the inlet flow rate measured after keeping the pressurization device closed and opening the inlet valve; the duty cycle of the hot water pump is used to adjust the speed of the hot water pump, and the limit duty cycle corresponds to the limit speed of the hot water pump.

[0031] In some possible implementations, the method further includes:

[0032] The steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result are repeated a preset number of times, and the number of times that both the first comparison result and the second comparison result continuously meet the first preset condition is recorded to obtain the first compliance count;

[0033] When the first number of coincidences reaches a preset threshold, a first control signal is generated; the first preset condition is that the first comparison result indicates that the unpressurized inlet water flow rate is less than or equal to the initial inlet water flow rate, and the second comparison result indicates that the purified water flow rate limit is less than or equal to the initial inlet water flow rate; the preset threshold is obtained through experiments, and the first control signal carries a first prompt message indicating that there is a water shortage fault;

[0034] The first control signal is sent to the display screen of the integrated heat and water purification device so that the display screen displays the first prompt information.

[0035] In some possible implementations, after obtaining the first number of coincidences, the method further includes:

[0036] If both the first comparison result and the second comparison result meet the second preset condition in any given instance, the first number of times they meet the condition will be recorded as zero.

[0037] The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the second preset condition is recorded to obtain the second compliance count. The second preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is less than or equal to the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is greater than the initial inlet flow rate.

[0038] If the number of times the second coincidence is reached reaches a preset threshold, a second control signal is generated; the second control signal carries a second prompt message indicating that there is a fault in the measurement of the influent flow rate;

[0039] Send the second control signal to the display screen of the integrated heat and water device, so that the display screen displays the second prompt information;

[0040] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the second number of times the condition is met is recorded as zero.

[0041] The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

[0042] In some possible implementations, after obtaining the first number of coincidences, the method further includes:

[0043] If both the first comparison result and the second comparison result meet the third preset condition in any given instance, the first number of times they meet the condition will be recorded as zero.

[0044] The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the third preset condition is recorded, and the third compliance count is obtained. The third preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is less than or equal to the initial inlet flow rate.

[0045] If the number of times the third coincidence is reached reaches a preset threshold, a third control signal is generated; the third control signal carries a third prompt message indicating that there is a fault in the measurement of the purified water flow rate.

[0046] The third control signal is sent to the display screen of the integrated heat and air purification device, so that the display screen displays the third prompt information;

[0047] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the third coincidence count is recorded as zero.

[0048] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the second preset condition, the third coincidence count is recorded as zero.

[0049] The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

[0050] In some possible implementations, after obtaining the second comparison result, the method further includes:

[0051] If both the first comparison result and the second comparison result meet the normal water supply conditions, the steps from obtaining the target clean water flow rate value and the clean water flow rate limit value to heating the clean water to obtain water that meets the water demand are executed.

[0052] The normal water supply condition is that the first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the second comparison result indicates that the purified water flow rate limit is greater than the initial inlet flow rate.

[0053] On the other hand, embodiments of this application provide a control device for an integrated heat dissipation and cooling system, the control device comprising:

[0054] A flow rate acquisition module is used to obtain a target purified water flow rate and a purified water flow rate limit value. The target purified water flow rate is obtained by calculation and analysis based on water demand. The purified water flow rate limit value is the purified water flow rate measured when the purified water valve and the hot water pump are in the open state and the duty cycle of the hot water pump is the limit duty cycle.

[0055] A size comparison module is used to compare the target purified water flow rate value with the purified water flow rate limit value.

[0056] The inlet water flow rate adjustment module is used to increase the inlet water flow rate when the purified water flow rate limit value is less than the target purified water flow rate value, thereby obtaining an increased inlet water flow rate value. The increased inlet water flow rate value is less than the inlet water flow rate limit value, where the inlet water flow rate limit value is the inlet water flow rate value when the membrane pressure of the membrane chromatography is equal to the pressure limit value; the pressure limit value is the limit value for the membrane chromatography to be within the normal pressure range.

[0057] Water purification flow rate adjustment module; used to adjust the water purification flow rate according to the increased inlet water flow rate;

[0058] Current purified water flow rate measurement module; used to obtain the current purified water flow rate value after adjustment;

[0059] A heating control module is used to heat the purified water to obtain water that meets the water demand when the current purified water flow rate is equal to the target purified water flow rate.

[0060] The control method for the integrated water purification and heating device proposed in this application calculates the target purified water flow rate based on water demand, compares the purified water flow rate threshold with the target purified water flow rate, adjusts the inlet water flow rate within the threshold based on the comparison result, and then adjusts the purified water flow rate based on the adjusted inlet water flow rate to make the purified water flow rate equal to the target purified water flow rate, thus meeting the water demand. By simultaneously adjusting the inlet water flow rate and the purified water flow rate, the pressure before the membrane of the membrane chromatography can be controlled to be less than the pressure threshold while meeting the water demand, ensuring that the membrane chromatography is within the normal pressure range during the water effluent control process, reducing membrane chromatography wear, and thus extending the service life of the membrane chromatography. Attached Figure Description

[0061] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 This is a schematic diagram of the implementation environment of a control method provided in an embodiment of the present invention;

[0063] Figure 2 This is a flowchart of a control method for an integrated heat dissipation and cooling device provided in an embodiment of the present invention;

[0064] Figure 3 This is a logic diagram of a control method for an integrated heat dissipation and cooling device provided in an embodiment of the present invention;

[0065] Figure 4 This is a block diagram of the control device for an integrated heat dissipation and cooling system provided in an embodiment of the present invention;

[0066] Figure 5 This is an overall logic diagram of a control method for an integrated heat and water purification device provided in an embodiment of the present invention. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0068] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0069] To make the objectives, technical solutions, and advantages disclosed in the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of this application and are not intended to limit the embodiments of this application.

[0070] For tankless, rapid-heating integrated water purifiers, there is often a problem that the released hot water flow rate is less than the inlet water flow rate. Because the released hot water flow rate is much smaller than the inlet water flow rate, the inlet water cannot flow to the hot water pump in time. A large flow of water remains in front of the membrane chromatograph, which puts excessive pressure on the membrane chromatograph and affects its service life. Therefore, this application proposes a control method and control device for an integrated water purifier and heat pump.

[0071] To facilitate understanding of the technical solutions described above and their resulting technical effects in the embodiments of this application, the relevant symbols are first explained in the embodiments of this application:

[0072] Δmin Initial influent flow rate <![CDATA[Δ heat 0]]> Target water flow rate <![CDATA[ΔA0]]> Unpressurized inlet flow rate <![CDATA[ΔB min ]]> Water flow rate limit <![CDATA[ΔA1]]> Increased influent flow rate <![CDATA[ΔB1]]> Current water flow rate

[0073] Figure 1 This is a schematic diagram illustrating an implementation environment of a method according to an exemplary embodiment. For example... Figure 1As shown, the implementation environment may include at least a client 01 and a server 02. The client 01 and the server 02 may be directly or indirectly connected via wired or wireless communication, which is not limited in this application.

[0074] Specifically, the server 02 can be used to obtain a target purified water flow rate value and a purified water flow rate limit value; compare the target purified water flow rate value and the purified water flow rate limit value; if the purified water flow rate limit value is less than the target purified water flow rate value, increase the inlet water flow rate to obtain an increased inlet water flow rate value; if the increased inlet water flow rate value is less than the inlet water flow rate limit value, adjust the purified water flow rate according to the increased inlet water flow rate value; obtain the current purified water flow rate value after adjustment; if the current purified water flow rate value is equal to the target purified water flow rate value, heat the purified water to obtain water that meets the water demand. Optionally, the server 02 can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms.

[0075] Specifically, the client 01 can be used to input water usage requirements. Optionally, the client 01 can be a smartphone, tablet, laptop, desktop computer, smart speaker, smart voice interaction device, smart home appliance, smartwatch, vehicle terminal, aircraft, etc., but is not limited to these. This application embodiment can be applied to various scenarios, including but not limited to rendering and displaying interactive information involved in various scenarios such as cloud technology, artificial intelligence, smart transportation, and assisted driving.

[0076] It should be noted that, Figure 1 This is just one example. Other implementation environments may also be included in other scenarios.

[0077] On the one hand, this application proposes a control method for an integrated heat dissipation and cooling device. This specification provides the method operation steps as described in the embodiments or flowcharts, but based on conventional or non-inventive labor, more or fewer operation steps may be included. The order of steps listed in the embodiments is merely one of many possible execution orders and does not represent the only execution order. In actual system or server products, the method can be executed sequentially according to the embodiments or drawings, or in parallel (e.g., in a parallel processor or multi-threaded processing environment). Figure 2 This is a flowchart of a control method for an integrated heat dissipation and cooling device provided in an embodiment of the present invention. This method can be used for... Figure 1 In the implementation environment, such as Figure 2 As shown, the method includes:

[0078] S102: Obtain the target purified water flow rate and the purified water flow rate limit value;

[0079] The target net water flow rate Δheat0 is obtained through calculation and analysis based on water demand; the net water flow rate limit value ΔB min The measured water flow rate is when the water purification valve and the hot water pump are in the open state and the duty cycle of the hot water pump is at the limit duty cycle. It should be noted that the booster device is not turned on at this time, and the inlet water flow rate is the unpressurized inlet water flow rate.

[0080] Furthermore, in some possible embodiments, the calculation based on water demand can be performed as follows: obtaining the difference between the inlet water temperature and the required water temperature; the required water temperature is the water temperature indicated by the water demand; performing control analysis calculation based on the difference to obtain a required power value; the required power value indicates the power required to raise the inlet water temperature to the required water temperature; and heating the purified water according to the required power value to obtain water that meets the water demand. For example, the control analysis calculation method can be a PID control method.

[0081] S104: Compare the target water flow rate value with the water flow rate limit value;

[0082] The target net water flow rate Δheat0 is calculated and analyzed based on water demand. It represents the net water flow rate required to provide water that meets the demand. The target net water flow rate Δheat0 and the net water flow rate threshold ΔB are used to determine the net water flow rate. min A comparison of magnitudes is performed, and the results are used to determine whether water supply is normal and whether adjustments to the booster device or hot water pump are needed. The target clean water flow rate Δheat0 equals the clean water flow rate limit value ΔB. min When the water pressure is within the normal range, it means that there is no need to adjust the inlet water flow rate or the purified water flow rate to meet the water demand and output water normally, and the membrane pressure is also within the normal range.

[0083] S106: If the water flow rate limit value is less than the target water flow rate value, increase the inlet flow rate to obtain the increased inlet flow rate value.

[0084] The increased influent flow rate is less than the influent flow rate limit value, which is the influent flow rate when the membrane pressure of the membrane chromatography is equal to the pressure limit value; the pressure limit value is the limit value for the membrane chromatography to be in the normal pressure range.

[0085] Furthermore, when the comparison result represents the net water flow rate threshold value ΔB minIf the flow rate is less than the target purified water flow rate Δheat0, it means that the water flow rate after membrane chromatography is insufficient to meet the water demand without the booster device being turned on, and the booster device needs to be turned on to increase the flow rate.

[0086] The greater the pressure boosting of the feed water by the pressurization device, the greater the feed water flow rate, and the greater the pre-membrane pressure of the membrane chromatograph. When the pre-membrane pressure exceeds the pressure limit value, this state will affect the service life of the membrane chromatograph. To avoid affecting the service life of the membrane chromatograph, the pre-membrane pressure should be controlled below the pressure limit value. Correspondingly, the increased feed water flow rate ΔA1 should be less than the feed water flow rate limit value Δmax. At this time, the pre-membrane pressure can be kept below the pressure limit value, and the pre-membrane pressure of the membrane chromatograph can be controlled within a safe range that does not affect the service life of the membrane chromatograph.

[0087] S108: Adjust the purified water flow rate according to the increased inlet water flow rate;

[0088] S110: Obtain the current purified water flow rate value after adjusting the purified water flow rate;

[0089] Furthermore, after increasing the inlet water flow rate using a booster device, the purified water flow rate needs to be adjusted to meet water demand. Depending on the extent of the increase in the inlet water flow rate, the adjustment can involve either increasing or decreasing the purified water flow rate.

[0090] It should be noted that before adjusting the purified water flow rate, the hot water pump's duty cycle is set to the limit duty cycle by default. When the inlet water flow rate of the booster device increases, the purified water flow rate will also increase accordingly. If, before adjusting the purified water flow rate, the increase in the inlet water flow rate causes the purified water flow rate to exceed the target purified water flow rate Δheat0, then the purified water flow rate needs to be reduced. If the increase in the inlet water flow rate causes the purified water flow rate to be exactly equal to the target purified water flow rate Δheat0, then no adjustment of the hot water pump is needed. If the increase in the inlet water flow rate causes the purified water flow rate to still be less than the target purified water flow rate Δheat0, then the purified water flow rate needs to be increased to meet normal water supply conditions.

[0091] S112: When the current purified water flow rate is equal to the target purified water flow rate, the purified water is heated to obtain water that meets the water demand.

[0092] This invention calculates the target purified water flow rate based on water demand, compares the purified water flow rate threshold with the target purified water flow rate, adjusts the inlet flow rate within the threshold based on the comparison result, and then adjusts the purified water flow rate based on the adjusted inlet flow rate to make the purified water flow rate equal to the target purified water flow rate, thus meeting water demand. By simultaneously adjusting the inlet and purified water flow rates, the pressure before the membrane chromatography can be controlled to be less than the pressure threshold while meeting water demand, ensuring that the membrane chromatography is within the normal pressure range during the effluent control process, reducing membrane chromatography wear, and thus extending the service life of the membrane chromatography.

[0093] In some possible embodiments, the integrated heat and water purification device includes a hot water pump, and the method further includes:

[0094] When the water flow rate limit value is greater than the target water flow rate value, a first mapping relationship is obtained, which indicates the correspondence between the duty cycle of the hot water pump and the water flow rate value.

[0095] Furthermore, the first mapping relationship indicates the correspondence between the duty cycle of the hot water pump and the value of the purified water flow rate. The first mapping relationship is a relationship curve simulated based on experimentally measured data.

[0096] It should be noted that the duty cycle of the hot water pump is related to the pump speed, and the pump speed is related to the purified water flow rate. If the purified water flow rate threshold ΔB... min If the current water flow rate is greater than the target water flow rate Δheat0, the duty cycle of the hot water pump will be adjusted to make the current water flow rate ΔB1 equal to the target water flow rate Δheat0.

[0097] Based on the first mapping relationship, the target net water flow rate value is mapped to obtain the target duty cycle corresponding to the target net water flow rate value;

[0098] Optionally, there is a one-to-one correspondence between the purified water flow rate and the duty cycle. After the target purified water flow rate Δheat0 is calculated, it is mapped according to the first mapping relationship to obtain the target duty cycle corresponding to the target purified water flow rate Δheat0. The target duty cycle is the duty cycle value of the hot water pump that adjusts the purified water flow rate to the target purified water flow rate Δheat0.

[0099] Adjust the current duty cycle of the hot water pump to the target duty cycle so that the current purified water flow rate is equal to the target purified water flow rate.

[0100] The purified water is heated to obtain water that meets the stated water requirements.

[0101] This invention utilizes experimentally measured relationship curves to obtain a first mapping relationship between the purified water flow rate and the duty cycle of the hot water pump. Based on the target purified water flow rate, a target duty cycle of the hot water pump is obtained, improving the speed of adjusting the hot water pump speed. By adjusting the current duty cycle of the hot water pump to the target duty cycle, the current purified water flow rate is made equal to the target purified water flow rate, thereby obtaining water that meets the water demand and improving the accuracy and flexibility of controlling water output according to water demand.

[0102] In some possible embodiments, the integrated water purification and heating device includes a hot water pump, and the adjustment of the purified water flow rate according to the increased inlet water flow rate includes:

[0103] Obtain a first mapping relationship, which indicates the correspondence between the duty cycle of the hot water pump and the purified water flow rate;

[0104] As mentioned earlier, the first mapping relationship indicates the correspondence between the duty cycle of the hot water pump and the value of the purified water flow. The first mapping relationship is a relationship curve simulated based on experimentally measured data, and the same explanation is omitted here.

[0105] Compare the increased influent flow rate value with the influent flow rate threshold;

[0106] For example, the inlet flow threshold refers to the inlet flow value that, when the current duty cycle of the hot water pump is the limit duty cycle, does not need to be adjusted to make the current clean water flow value ΔB1 equal to the increased target clean water flow value Δheat0, and the inlet flow threshold is less than the inlet flow limit value Δmax.

[0107] If the increased inlet flow rate is equal to the inlet flow rate threshold, the current duty cycle of the hot water pump remains unchanged.

[0108] As mentioned earlier, when the increased inlet flow rate ΔA1 equals the inlet flow rate threshold and the current purified water flow rate ΔB1 equals the target purified water flow rate Δheat0, water can be dispensed according to the water demand without adjusting the hot water pump. Therefore, the current duty cycle of the hot water pump remains unchanged, that is, the limit duty cycle of the hot water pump remains unchanged.

[0109] If the increased inlet flow rate is greater than the inlet flow rate threshold, the target purified water flow rate is mapped according to the first mapping relationship to obtain the target duty cycle corresponding to the target purified water flow rate; the current duty cycle of the hot water pump is adjusted to the target duty cycle to regulate the purified water flow rate.

[0110] Furthermore, when the increased inlet flow rate ΔA1 is greater than the inlet flow rate threshold, the current purified water flow rate ΔB1 will exceed the target purified water flow rate Δheat0, which does not meet the normal water supply conditions. Therefore, it is necessary to adjust the hot water pump to reduce the purified water flow rate so that the new current purified water flow rate ΔB1 is equal to the target purified water flow rate Δheat0.

[0111] This invention improves the tightness and linkage between the booster device and the hot water pump adjustment by obtaining the inlet flow rate threshold when the current duty cycle of the hot water pump is equal to the threshold value, comparing the threshold value with the increased inlet flow rate, and determining whether to adjust the current duty cycle of the hot water pump based on the comparison result. When the increased inlet flow rate equals the threshold value, there is no need to adjust the current duty cycle of the hot water pump, refining the hot water pump adjustment scheme and enhancing its flexibility. By controlling the inlet flow rate threshold to be less than the threshold value, the pressure before the membrane of the membrane chromatography is kept within the normal pressure range, slowing down the wear rate of the membrane chromatography and extending its service life.

[0112] In some possible embodiments, the integrated water purification and heating device includes a pressurization device, wherein increasing the inlet water flow rate includes:

[0113] Obtain a second mapping relationship, which indicates the correspondence between the membrane inlet pressure of the membrane chromatography and the duty cycle of the pressurization device;

[0114] The second mapping relationship indicates the correspondence between the duty cycle of the booster device and the inlet flow rate. The second mapping relationship is a relationship curve simulated based on experimentally measured data.

[0115] Based on the second mapping relationship, the pressure limit value is mapped to obtain the limit duty cycle of the booster device corresponding to the pressure limit value;

[0116] Within a range of duty cycles less than the stated limit, the current duty cycle of the booster device is increased so that the booster device increases the inlet flow rate within a range less than the stated inlet flow rate limit.

[0117] Please see Figure 3 , Figure 3 A logic for a control method of an integrated water purification and heating device is provided. Exemplarily, the integrated water purification and heating device includes an inlet valve, a pre-filter, a booster device, a flow meter A, a membrane chromatograph, a post-filter, a wastewater valve, an ultraviolet sterilizer, an outlet valve, a purified water valve, a flow meter B, a hot water pump, a heating device, a first temperature sensor, and a second temperature sensor.

[0118] The control logic is as follows: When the inlet valve is opened, the incoming water passes through the pre-filter and enters the booster device. Opening the booster device increases the inlet flow rate; if closed, the inlet flow rate is the natural flow rate. After further filtration by membrane chromatography, the water enters the post-filter. The pre-filter and post-filter are configured with activated carbon filtration, etc., which will not be detailed here. The filtered water enters the ultraviolet sterilizer for sterilization. If there is no heating requirement, it directly exits through the outlet valve to provide room temperature water. If a water demand is input, it enters the purified water valve, passes through the hot water pump and heating device to raise the temperature, and is then output. Flow meter A and flow meter B measure the inlet and purified water flow rates under various conditions, respectively. The first and second temperature sensors measure the temperature of the purified water before and after heating.

[0119] The control method for the integrated water purification and heating device provided in this application is based on the comparison and judgment of numerical values ​​such as influent flow rate and purified water flow rate. The accuracy of controlling the output water depends on the accuracy of these numerical values. Figure 3 As shown, in some possible embodiments, values ​​such as influent flow rate and purified water flow rate are obtained by reading the values ​​of flow meter A and flow meter B. Fault detection and troubleshooting of flow meter A and flow meter B are required to ensure the accuracy of the values ​​on which the water output control is based.

[0120] In some possible embodiments, the integrated water purification and heating device includes an inlet valve and a purified water valve, and the method further includes, before comparing the target purified water flow rate value with the purified water flow rate threshold value:

[0121] Obtain the unpressurized inlet flow rate and the initial inlet flow rate;

[0122] The initial inlet flow rate value is compared with the unpressurized inlet flow rate value to obtain a first comparison result; the first comparison result is used to determine whether the duty cycle of the booster device needs to be adjusted.

[0123] The initial influent flow rate is compared with the purified water flow rate limit value to obtain a second comparison result; the second comparison result is used to determine whether the duty cycle of the hot water pump needs to be adjusted.

[0124] Wherein, the initial inlet flow rate is the inlet flow rate measured when the inlet valve is closed; the unpressurized inlet flow rate is the inlet flow rate measured after keeping the pressurization device closed and opening the inlet valve; the duty cycle of the hot water pump is used to adjust the speed of the hot water pump, and the limit duty cycle corresponds to the limit speed of the hot water pump.

[0125] By acquiring the initial inlet water flow rate and the unpressurized inlet water flow rate, the initial inlet water flow rate is compared with the unpressurized inlet water flow rate and the purified water flow rate limit value. Based on the different combinations of the first comparison result and the second comparison result, it is determined whether the integrated heat and water purification device has a water shortage fault, a flow meter A fault, or a flow meter B fault, so as to ensure the accuracy of the acquired values, thereby improving the accuracy of control, ensuring water demand, and ensuring the accuracy of membrane pressure control.

[0126] In some possible embodiments, the method further includes:

[0127] The steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result are repeated a preset number of times, and the number of times that both the first comparison result and the second comparison result continuously meet the first preset condition is recorded to obtain the first compliance count;

[0128] To avoid inaccurate judgments due to errors in a single result, the steps from obtaining the unpressurized inlet water flow value ΔA0 to obtaining the second comparison result are repeated a preset number of times. The preset number of times can be determined based on factors such as the pipe length of the integrated water purifier and heat pump and the maximum water storage capacity in the pipe. When the number of times the first preset condition is met reaches a preset threshold, a definite judgment result is obtained.

[0129] When the first number of coincidences reaches a preset threshold, a first control signal is generated;

[0130] The first preset condition is that the first comparison result indicates that the unpressurized inlet water flow rate is less than or equal to the initial inlet water flow rate, and the second comparison result indicates that the purified water flow rate limit is less than or equal to the initial inlet water flow rate; the preset threshold is obtained through experimentation, and the first control signal carries a first prompt message indicating that there is a water shortage fault;

[0131] The initial inlet flow rate Δmin is the inlet flow rate measured when the inlet valve is not open. Ideally, this value is zero, and in reality, it is close to zero. The unpressurized inlet flow rate ΔA0 is the inlet flow rate measured when the inlet valve is open but the pressurization device is not activated. In other words, the unpressurized inlet flow rate ΔA0 should be the flow rate of natural water. Under normal circumstances, the unpressurized inlet flow rate ΔA0 should be greater than the initial inlet flow rate Δmin. Therefore, when the first comparison result indicates that the unpressurized inlet flow rate ΔA0 is less than or equal to the initial inlet flow rate Δmin, there may be a water shortage or a malfunction in the flow meter A used to measure the inlet flow rate.

[0132] To further determine the type of fault, an analysis and judgment were made based on the second comparison results, using the net water flow rate limit value ΔB. minThe flow rate is the limit value ΔB of the hot water flow rate when the booster device is not turned on and the hot water pump's duty cycle is at the limit duty cycle. Under normal circumstances, the limit value of the purified water flow rate is... min Let be a non-zero value that is not close to zero, and let ΔB be the limit value of the net water flow rate. min If the flow rate is less than or equal to the initial influent flow rate Δmin, it indicates that the current purified water flow rate is too small, almost zero.

[0133] In summary, it can be concluded that the current integrated heat and water purification system has a water shortage fault. Furthermore, the concept of a preset threshold is introduced to improve the accuracy of the judgment result.

[0134] The first control signal is sent to the display screen of the integrated heat and water purification device so that the display screen displays the first prompt information.

[0135] This invention, by obtaining a first number of coincidences, determines that the integrated water purification and heating device has a water shortage fault when the first number of coincidences reaches a preset threshold. This can reflect the status of the integrated water purification and heating device in a timely manner, avoid generating values ​​based on faults, avoid affecting the accuracy of water output control, avoid damage to the integrated water purification and heating device, and improve the self-testing safety of the integrated water purification and heating device.

[0136] In some possible embodiments, after obtaining the first number of coincidences, the method further includes:

[0137] If both the first comparison result and the second comparison result meet the second preset condition in any given instance, the first number of times they meet the condition will be recorded as zero.

[0138] The counting of the first, second, and third coincidences must be continuous. Assuming the first coincidence is N, then in the 1st, 2nd, 3rd... Nth judgment, the first comparison result and the second comparison result must both meet the first preset condition. If in any judgment, either the first comparison result or the second comparison result does not meet the first preset condition, the continuity of the counting is broken, and the first coincidence is recorded as zero. The same applies to the second and third coincidences.

[0139] The disruption of the counting continuity indicates that the state of the integrated water purification and heating device has changed, for example, from a water shortage fault state to a flow meter A fault state, or from a water shortage fault state to a normal water supply state. Therefore, it is necessary to re-obtain the first comparison result and the second comparison result and make a judgment.

[0140] The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the second preset condition is recorded to obtain the second compliance count. The second preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is less than or equal to the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is greater than the initial inlet flow rate.

[0141] When the first comparison result obtained again indicates that the unpressurized inlet flow rate ΔA0 is less than or equal to the initial inlet flow rate Δmin, it means that the inlet flow rate is approximately zero, and it can be considered that no water flows through. However, the second comparison result obtained again indicates the net water flow rate limit value ΔB. min If the flow rate is greater than the initial influent flow rate Δmin, it indicates that the net water flow rate is not zero, and it can be considered that water is flowing through. If the first comparison result and the second comparison result obtained again contradict each other, it is considered that there is a fault in the measurement of the influent flow rate. Specifically, in the embodiment where flow meter A is used for measurement, flow meter A is considered to be faulty.

[0142] If the number of times the second coincidence is reached reaches a preset threshold, a second control signal is generated; the second control signal carries a second prompt message indicating that there is a fault in the measurement of the influent flow rate;

[0143] In summary, it can be concluded that the measurement of the inlet water flow rate of the current integrated water purification and heating device is faulty. Furthermore, the concept of a preset threshold is introduced to improve the accuracy of the judgment result.

[0144] Send the second control signal to the display screen of the integrated heat and water device, so that the display screen displays the second prompt information;

[0145] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the second number of times the condition is met is recorded as zero.

[0146] As mentioned above, when the first comparison result and the second comparison result can change from meeting the second preset condition to meeting the first preset condition, it indicates that the fault state of the integrated heat and water purification device has changed. Accordingly, the continuity of counting is broken, and the originally recorded second number of times of compliance is recorded as zero. Similarly, the above rules apply to the first number of times of compliance, the second number of times of compliance, or the third number of times of compliance.

[0147] The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

[0148] This invention, through obtaining a second number of coincidences, determines that the integrated water purification and heating device has a fault in measuring the inlet water flow rate when the second number of coincidences reaches a preset threshold. This allows for timely reflection of the device's status, avoids generating values ​​based on faults, and prevents inaccurate judgments from damaging the device, thus improving the self-testing safety of the integrated water purification and heating device. When the continuity of the second preset condition is interrupted, the second number of coincidences is reset to zero, and the steps of obtaining the unpressurized inlet water flow rate are repeated to obtain the first comparison result and the second comparison result. This improves the flexibility of fault judgment, ensures the real-time nature of the judgment results, and enhances the accuracy of fault judgment for the integrated water purification and heating device, thereby improving the accuracy of water output control.

[0149] In some possible embodiments, after obtaining the first number of coincidences, the method further includes:

[0150] If both the first comparison result and the second comparison result meet the third preset condition in any given instance, the first number of times they meet the condition will be recorded as zero.

[0151] Please refer to the previous explanation of the rule that the first, second, and third coincidence counts are zero; it will not be repeated here.

[0152] The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the third preset condition is recorded, and the third compliance count is obtained. The third preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is less than or equal to the initial inlet flow rate.

[0153] If the first comparison result indicates that the unpressurized inlet flow rate ΔA0 is greater than the initial inlet flow rate Δmin, it means that the inlet flow rate is not zero, and it can be considered that water is flowing through. However, the second comparison result indicates the net water flow rate limit value ΔB. min If the flow rate is less than or equal to the initial influent flow rate Δmin, it indicates that the purified water flow rate is almost zero, and it can be considered that there is no purified water. It should be noted that the purified water flow rate threshold ΔB... min The measurement was taken with the water purifier valve open and the hot water pump's duty cycle at the limit duty cycle. Specifically, in the aforementioned situation, the limit value ΔB for the water purifier flow rate is as follows: when the inlet water flow rate is not zero and the water purifier valve is open. min The result is almost zero, leading to the conclusion that there is a fault in the measurement of the purified water flow rate. Specifically, in the embodiment where flow meter B is used for measurement, flow meter B is considered to be faulty.

[0154] If the number of times the third coincidence is reached reaches a preset threshold, a third control signal is generated; the third control signal carries a third prompt message indicating that there is a fault in the measurement of the purified water flow rate.

[0155] In summary, it can be concluded that there is a fault in the measurement of the purified water flow rate of the current integrated water purification and heating device. Furthermore, the concept of a preset threshold is introduced to improve the accuracy of the judgment result.

[0156] The third control signal is sent to the display screen of the integrated heat and air purification device, so that the display screen displays the third prompt information;

[0157] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the third coincidence count is recorded as zero.

[0158] If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the second preset condition, the third coincidence count is recorded as zero.

[0159] Please refer to the previous explanation of the rule that the first, second, and third coincidence counts are zero; it will not be repeated here.

[0160] The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

[0161] This invention, through obtaining a third compliance count, determines that the integrated water purification and heating device has a fault in measuring the purified water flow rate when the third compliance count reaches a preset threshold. This allows for timely reflection of the device's status, preventing the generation of values ​​based on faults and avoiding damage to the device due to inaccurate judgment results, thus improving the self-testing safety of the integrated water purification and heating device. When the continuity of the third preset condition is interrupted, the third compliance count is reset to zero, and the steps of obtaining the unpressurized inlet water flow rate are re-executed to obtain the first comparison result and the second comparison result. This improves the flexibility of fault judgment, ensures the real-time nature of the judgment results, and enhances the accuracy of fault judgment for the integrated water purification and heating device, thereby improving the accuracy of water output control. This facilitates timely detection and elimination of faults, allowing the device to normally enter the logic of water output control based on water demand, and improving the sensitivity of rapid water heating based on water demand.

[0162] In some possible embodiments, after obtaining the second comparison result, the method further includes:

[0163] If both the first comparison result and the second comparison result meet the normal water supply conditions, the steps from obtaining the target clean water flow rate value and the clean water flow rate limit value to heating the clean water to obtain water that meets the water demand are executed.

[0164] The normal water supply condition is that the first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the second comparison result indicates that the purified water flow rate limit is greater than the initial inlet flow rate.

[0165] This invention analyzes the first and second comparison results. If both the unpressurized inlet water flow rate and the purified water flow rate limit are within the normal range, it determines that the integrated water purification and heating device is not faulty and can supply water normally. This allows the device to enter the outlet water control logic, improving the accuracy of outlet water control and ensuring that the integrated water purification and heating device does not experience water shortages that prevent water supply. It also ensures accurate flow meter readings, enabling precise adjustments to the pressurization device and hot water pump according to water demand. This improves the matching degree between outlet water control and input water demand, enhancing the ease of use of the integrated water purification and heating device. Furthermore, it helps control the pre-membrane pressure within the normal pressure range according to the operating logic of the integrated water purification and heating device, extending the service life of the membrane chromatography and ensuring the realization of the rapid hot water extraction function.

[0166] Please see Figure 4 ,like Figure 4 As shown in the figure, this application embodiment provides a control device 2 for an integrated heat dissipation and cooling device, the control device comprising:

[0167] Flow value acquisition module 201; used to obtain target purified water flow value and purified water flow limit value; the target purified water flow value is obtained by calculation and analysis based on water demand; the purified water flow limit value is the purified water flow value measured when the purified water valve and the hot water pump are in the open state and the duty cycle of the hot water pump is the limit duty cycle.

[0168] Size comparison module 203; used to compare the target purified water flow rate value and the purified water flow rate limit value;

[0169] The inlet flow rate adjustment module 205 is used to increase the inlet flow rate when the purified water flow rate limit value is less than the target purified water flow rate value, to obtain an increased inlet flow rate value; the increased inlet flow rate value is less than the inlet flow rate limit value, where the inlet flow rate limit value is the inlet flow rate value when the membrane pressure of the membrane chromatography is equal to the pressure limit value; the pressure limit value is the limit value for the membrane chromatography to be within the normal pressure range.

[0170] Water purification flow rate adjustment module 207; used to adjust the water purification flow rate according to the increased inlet water flow rate value;

[0171] Current purified water flow rate measurement module 209; used to obtain the current purified water flow rate value after adjustment;

[0172] Heating control module 211; used to heat the purified water to obtain water that meets the water demand when the current purified water flow rate is equal to the target purified water flow rate.

[0173] In some possible embodiments, the integrated water purification and heating device includes a hot water pump, and the purified water flow rate regulating module includes:

[0174] The first mapping relationship acquisition unit is used to acquire a first mapping relationship when the water flow limit value is greater than the target water flow value. The first mapping relationship indicates the correspondence between the duty cycle of the hot water pump and the water flow value.

[0175] A target duty cycle acquisition unit is used to map the target net water flow rate value according to a first mapping relationship to obtain a target duty cycle corresponding to the target net water flow rate value.

[0176] First duty cycle adjustment unit; used to adjust the current duty cycle of the hot water pump to the target duty cycle, so that the current purified water flow rate is equal to the target purified water flow rate;

[0177] A heating control unit is used to heat purified water to obtain water that meets the stated water requirements.

[0178] In some possible embodiments, the integrated water purification and heating device includes a hot water pump, and the purified water flow rate regulating module includes:

[0179] First mapping relationship acquisition unit; used to acquire a first mapping relationship, the first mapping relationship indicating the correspondence between the duty cycle of the hot water pump and the purified water flow rate value;

[0180] Inlet flow rate comparison unit; used to compare the increased inlet flow rate value with the inlet flow rate threshold.

[0181] The second duty cycle adjustment unit is used to maintain the current duty cycle of the hot water pump unchanged when the increased inlet flow rate is equal to the inlet flow rate threshold.

[0182] A target duty cycle acquisition unit is used to map the target net water flow value according to a first mapping relationship when the increased influent flow value is greater than the influent flow threshold, so as to obtain the target duty cycle corresponding to the target net water flow value.

[0183] The third duty cycle adjustment unit is used to adjust the current duty cycle of the hot water pump to the target duty cycle in order to regulate the water flow rate.

[0184] In some possible embodiments, the integrated heat and water purification device includes a pressurization device, and the inlet water flow regulation module includes:

[0185] Second mapping relationship acquisition unit; used to acquire a second mapping relationship, the second mapping relationship indicating the correspondence between the membrane inlet pressure of the membrane chromatography and the duty cycle of the pressurization device;

[0186] A limit duty cycle acquisition unit is used to map the pressure limit value according to the second mapping relationship to obtain the limit duty cycle of the booster device corresponding to the pressure limit value.

[0187] The inlet flow rate adjustment unit is used to increase the current duty cycle of the booster device within a range that is less than the specified limit duty cycle, so that the booster device increases the inlet flow rate within a range that is less than the specified inlet flow rate limit value.

[0188] In some possible embodiments, the integrated water purification and heating device includes an inlet valve and a purified water valve, and before comparing the target purified water flow rate value with the purified water flow rate threshold value, the control device further includes:

[0189] Inlet flow rate acquisition module; used to obtain the unpressurized inlet flow rate and the initial inlet flow rate.

[0190] The first comparison result acquisition module is used to compare the initial inlet flow rate value with the unpressurized inlet flow rate value to obtain a first comparison result; the first comparison result is used to determine whether the duty cycle of the booster device needs to be adjusted.

[0191] The second comparison result acquisition module is used to compare the initial inlet water flow rate value with the net water flow rate limit value to obtain a second comparison result; the second comparison result is used to determine whether the duty cycle of the hot water pump needs to be adjusted.

[0192] Wherein, the initial inlet flow rate is the inlet flow rate measured when the inlet valve is closed; the unpressurized inlet flow rate is the inlet flow rate measured after keeping the pressurization device closed and opening the inlet valve; the duty cycle of the hot water pump is used to adjust the speed of the hot water pump, and the limit duty cycle corresponds to the limit speed of the hot water pump.

[0193] In some possible embodiments, the control device further includes:

[0194] The first compliance count acquisition module is used to repeat the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result a preset number of times, and record the number of times that both the first comparison result and the second comparison result continuously meet the first preset condition, thereby obtaining the first compliance count.

[0195] A first control signal generation module is used to generate a first control signal when the first number of coincidences reaches a preset threshold. The first preset condition is that the first comparison result indicates that the unpressurized inlet water flow rate is less than or equal to the initial inlet water flow rate, and the second comparison result indicates that the purified water flow rate limit is less than or equal to the initial inlet water flow rate. The preset threshold is obtained through experiments. The first control signal carries a first prompt message indicating that there is a water shortage fault.

[0196] The first control signal display module is used to send the first control signal to the display screen of the integrated heat and water purification device, so that the display screen displays the first prompt information.

[0197] In some possible embodiments, after the first number of coincidences is obtained, the control device further includes:

[0198] The first coincidence count zeroing module is used to record the first coincidence count as zero if both the first comparison result and the second comparison result meet the second preset condition in any given instance.

[0199] The second compliance count acquisition module is used to repeat the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result a preset number of times, and record the number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the second preset condition, thereby obtaining the second compliance count; the second preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate value is less than or equal to the initial inlet flow rate value, and the re-obtained second comparison result indicates that the purified water flow rate limit value is greater than the initial inlet flow rate value;

[0200] The second control signal generation module is used to generate a second control signal when the second number of coincidences reaches a preset threshold; the second control signal carries a second prompt message indicating that the measurement of the influent flow rate value is faulty.

[0201] The second control signal display module is used to send the second control signal to the display screen of the integrated heat dissipation device, so that the display screen displays the second prompt information.

[0202] The second coincidence count zeroing module is used to record the second coincidence count as zero if both the first comparison result and the second comparison result obtained in any re-obtained comparison meet the first preset condition.

[0203] The first re-execution module is used to re-execute the step of repeating the process from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result a preset number of times.

[0204] In some possible embodiments, after the first number of coincidences is obtained, the control device further includes:

[0205] The first coincidence count zeroing module is used to record the first coincidence count as zero if both the first comparison result and the second comparison result meet the third preset condition in any given instance.

[0206] The third compliance count acquisition module is used to repeat the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result a preset number of times, and record the number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the third preset condition, thereby obtaining the third compliance count; the third preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate value is greater than the initial inlet flow rate value, and the re-obtained second comparison result indicates that the purified water flow rate limit value is less than or equal to the initial inlet flow rate value;

[0207] The third control signal generation module is used to generate a third control signal when the number of times the third coincidence reaches a preset threshold; the third control signal carries a third prompt message indicating that there is a fault in the measurement of the purified water flow rate.

[0208] The third control signal display module is used to send the third control signal to the display screen of the integrated heat and water purification device, so that the display screen displays the third prompt information.

[0209] The first zeroing module is used to record the third coincidence count as zero if both the first comparison result and the second comparison result obtained in any re-obtained comparison meet the first preset condition.

[0210] The second zeroing module is used to record the third compliance count as zero if both the first and second comparison results obtained in any re-obtained comparison meet the second preset condition.

[0211] The second re-execution module is used to re-execute the step of repeating the process from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result a preset number of times.

[0212] In some possible embodiments, after obtaining the second comparison result, the control device further includes:

[0213] Normal water supply execution module; used to execute the steps from obtaining the target purified water flow rate value and the purified water flow rate limit value to heating the purified water to obtain water that meets the water demand when both the first comparison result and the second comparison result meet the normal water supply conditions;

[0214] The normal water supply condition is that the first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the second comparison result indicates that the purified water flow rate limit is greater than the initial inlet flow rate.

[0215] Please see Figure 5 , Figure 5 The diagram illustrates the overall logic of a control method for an integrated water purification and heating device provided by this invention. The overall logic of the control method is as follows: determine whether a water demand for hot water is input; if so, calculate the target purified water flow rate required by the hot water pump based on the water demand; open the inlet valve without turning on the booster device to obtain the unboosted inlet water flow rate; open the purified water valve to turn on the hot water pump with a limit duty cycle to obtain the purified water flow limit value, and then proceed to fault judgment.

[0216] If the first preset condition is met, the number of times is recorded to obtain the first number of times the condition is met. If the first number of times the condition is met is greater than the preset threshold, the first control information is generated and sent, and the first control information is displayed. If the condition changes from meeting the first preset condition to not meeting it, the first number of times the condition is met is recorded as zero.

[0217] If the second preset condition is met, the number of times is recorded to obtain the second number of times the condition is met. If the second number of times the condition is met is greater than the preset threshold, the second control information is generated and sent, and the second control information is displayed. If the condition changes from meeting the second preset condition to not meeting it, the second number of times the condition is met is recorded as zero.

[0218] If the third preset condition is met, the number of times is recorded to obtain the third compliance count. If the third compliance count is greater than the preset threshold, the third control information is generated and sent, and the third control information is displayed. If the condition changes from meeting the third preset condition to not meeting it, the third compliance count is recorded as zero.

[0219] If normal water supply conditions are met, proceed to the steps of the normal water supply control method. Compare the net water flow rate threshold value ΔB. min The magnitude of the target net water flow rate Δheat0 corresponds to different comparison results, with three possible scenarios:

[0220] Case 1, ΔB min =Δheat0, that is, the purified water flow limit value is equal to the target purified water flow value, then the purified water is heated to obtain water that meets the water demand;

[0221] Case 2, ΔB min If the purified water flow rate exceeds Δheat0, meaning the purified water flow rate limit is greater than the target purified water flow rate, then the hot water pump speed is adjusted to obtain the current purified water flow rate ΔB1. When ΔB1 = Δheat0, the purified water is heated to obtain water that meets the stated water requirements.

[0222] Case 3, ΔB minIf the water flow rate is less than Δheat0, meaning the water flow rate limit is less than the target water flow rate, then the booster device is turned on, the booster device duty cycle is adjusted, and the increased inlet water flow rate ΔA1 is obtained. If ΔA1 < Δmax, then the hot water pump speed is adjusted, and the current water flow rate ΔB1 is obtained. When ΔB1 = Δheat0, the purified water is heated to obtain water that meets the water demand.

[0223] It should be noted that the device embodiments provided in this application are based on the same inventive concept as the method embodiments described above.

[0224] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0225] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and server embodiments are basically similar to the method embodiments, so they are described more simply; relevant parts can be referred to the descriptions of the method embodiments.

[0226] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0227] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control method for an integrated heat dissipation and cooling device, characterized in that, The integrated water purification and heating device includes a water purification valve and a hot water pump, and the method includes: Obtain the target purified water flow rate and the purified water flow rate limit value; the target purified water flow rate is obtained by calculation and analysis based on water demand; the purified water flow rate limit value is the purified water flow rate measured when the purified water valve and the hot water pump are in the open state and the duty cycle of the hot water pump is the limit duty cycle. Compare the target purified water flow rate value with the purified water flow rate limit value; If the purified water flow rate threshold is less than the target purified water flow rate, the inlet water flow rate is increased to obtain an increased inlet water flow rate. The increased inlet water flow rate is less than the inlet water flow rate threshold, where the inlet water flow rate threshold is the flow rate of the inlet water when the membrane pressure of the membrane chromatography is equal to the pressure threshold. The pressure threshold is the threshold value for the membrane chromatography to be within its normal pressure range. Adjust the purified water flow rate according to the increased influent flow rate; Obtain the current purified water flow rate value after adjusting the purified water flow rate; When the current purified water flow rate is equal to the target purified water flow rate, the purified water is heated to obtain water that meets the water demand.

2. The method according to claim 1, characterized in that, The method further includes: When the water flow rate limit value is greater than the target water flow rate value, a first mapping relationship is obtained, which indicates the correspondence between the duty cycle of the hot water pump and the water flow rate value. Based on the first mapping relationship, the target net water flow rate value is mapped to obtain the target duty cycle corresponding to the target net water flow rate value; Adjust the current duty cycle of the hot water pump to the target duty cycle so that the current purified water flow rate is equal to the target purified water flow rate. The purified water is heated to obtain water that meets the stated water requirements.

3. The method according to claim 1, characterized in that, The adjustment of the purified water flow rate based on the increased inlet water flow rate includes: Obtain a first mapping relationship, which indicates the correspondence between the duty cycle of the hot water pump and the purified water flow rate; Compare the increased influent flow rate value with the influent flow rate threshold; If the increased inlet flow rate is equal to the inlet flow rate threshold, the current duty cycle of the hot water pump remains unchanged. If the increased influent flow rate is greater than the influent flow rate threshold, the target purified water flow rate is mapped according to the first mapping relationship to obtain the target duty cycle corresponding to the target purified water flow rate. Adjust the current duty cycle of the hot water pump to the target duty cycle to regulate the purified water flow rate.

4. The method according to claim 1, characterized in that, The integrated heat and water purification device includes a pressurization device, and the increase in inlet water flow includes: Obtain a second mapping relationship, which indicates the correspondence between the membrane inlet pressure of the membrane chromatography and the duty cycle of the pressurization device; Based on the second mapping relationship, the pressure limit value is mapped to obtain the limit duty cycle of the booster device corresponding to the pressure limit value; Within a range of duty cycles less than the stated limit, the current duty cycle of the booster device is increased so that the booster device increases the inlet flow rate within a range less than the stated inlet flow rate limit.

5. The method according to claim 1, characterized in that, The integrated water purification and heating device includes an inlet valve and a pressurization device. Before comparing the target purified water flow rate value and the purified water flow rate limit value, the method further includes: Obtain the unpressurized inlet flow rate and the initial inlet flow rate; The initial inlet flow rate value is compared with the unpressurized inlet flow rate value to obtain a first comparison result; the first comparison result is used to determine whether the duty cycle of the booster device needs to be adjusted. The initial influent flow rate is compared with the purified water flow rate limit value to obtain a second comparison result; the second comparison result is used to determine whether the duty cycle of the hot water pump needs to be adjusted. Wherein, the initial inlet flow rate is the inlet flow rate measured when the inlet valve is closed; the unpressurized inlet flow rate is the inlet flow rate measured after keeping the pressurization device closed and opening the inlet valve; the duty cycle of the hot water pump is used to adjust the speed of the hot water pump, and the limit duty cycle corresponds to the limit speed of the hot water pump.

6. The method according to claim 5, characterized in that, The method further includes: The steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result are repeated a preset number of times, and the number of times that both the first comparison result and the second comparison result continuously meet the first preset condition is recorded to obtain the first compliance count; When the first number of coincidences reaches a preset threshold, a first control signal is generated; the first preset condition is that the first comparison result indicates that the unpressurized inlet water flow rate is less than or equal to the initial inlet water flow rate, and the second comparison result indicates that the purified water flow rate limit is less than or equal to the initial inlet water flow rate; the preset threshold is obtained through experiments, and the first control signal carries a first prompt message indicating that there is a water shortage fault; The first control signal is sent to the display screen of the integrated heat and water purification device so that the display screen displays the first prompt information.

7. The method according to claim 6, characterized in that, After obtaining the first number of coincidences, the method further includes: If both the first comparison result and the second comparison result meet the second preset condition in any given instance, the first number of times they meet the condition will be recorded as zero. The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the second preset condition is recorded to obtain the second compliance count. The second preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is less than or equal to the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is greater than the initial inlet flow rate. If the number of times the second coincidence is reached reaches a preset threshold, a second control signal is generated; the second control signal carries a second prompt message indicating that there is a fault in the measurement of the influent flow rate; Send the second control signal to the display screen of the integrated heat and water device, so that the display screen displays the second prompt information; If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the second number of times the condition is met is recorded as zero. The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

8. The method according to claim 7, characterized in that, After obtaining the first number of coincidences, the method further includes: If both the first comparison result and the second comparison result meet the third preset condition in any given instance, the first number of times they meet the condition will be recorded as zero. The steps from obtaining the unpressurized inlet flow rate to obtaining the second comparison result are repeated a preset number of times. The number of times that both the re-obtained first comparison result and the re-obtained second comparison result continuously meet the third preset condition is recorded, and the third compliance count is obtained. The third preset condition is that the re-obtained first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the re-obtained second comparison result indicates that the purified water flow rate limit value is less than or equal to the initial inlet flow rate. If the number of times the third coincidence is reached reaches a preset threshold, a third control signal is generated; the third control signal carries a third prompt message indicating that there is a fault in the measurement of the purified water flow rate. The third control signal is sent to the display screen of the integrated heat and air purification device, so that the display screen displays the third prompt information; If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the first preset condition, the third coincidence count is recorded as zero. If both the first comparison result and the second comparison result obtained in any re-obtained instance meet the second preset condition, the third coincidence count is recorded as zero. The process of repeating the steps from obtaining the unpressurized inlet flow rate value to obtaining the second comparison result is performed a preset number of times.

9. The method according to claim 5, characterized in that, After obtaining the second comparison result, the method further includes: If both the first comparison result and the second comparison result meet the normal water supply conditions, the steps from obtaining the target clean water flow rate value and the clean water flow rate limit value to heating the clean water to obtain water that meets the water demand are executed. The normal water supply condition is that the first comparison result indicates that the unpressurized inlet flow rate is greater than the initial inlet flow rate, and the second comparison result indicates that the purified water flow rate limit is greater than the initial inlet flow rate.

10. A control device for an integrated heat dissipation and cooling system, characterized in that, The integrated water purification and heating device includes a water purification valve and a hot water pump, and the control device includes: A flow rate acquisition module is used to obtain a target purified water flow rate and a purified water flow rate limit value. The target purified water flow rate is obtained by calculation and analysis based on water demand. The purified water flow rate limit value is the purified water flow rate measured when the purified water valve and the hot water pump are in the open state and the duty cycle of the hot water pump is the limit duty cycle. A size comparison module is used to compare the target purified water flow rate value with the purified water flow rate limit value. The inlet water flow rate adjustment module is used to increase the inlet water flow rate when the purified water flow rate limit value is less than the target purified water flow rate value, thereby obtaining an increased inlet water flow rate value. The increased inlet water flow rate value is less than the inlet water flow rate limit value, where the inlet water flow rate limit value is the inlet water flow rate value when the membrane pressure of the membrane chromatography is equal to the pressure limit value; the pressure limit value is the limit value for the membrane chromatography to be within the normal pressure range. Water purification flow rate adjustment module; used to adjust the water purification flow rate according to the increased inlet water flow rate; Current purified water flow rate measurement module; used to obtain the current purified water flow rate value after adjustment; A heating control module is used to heat the purified water to obtain water that meets the water demand when the current purified water flow rate is equal to the target purified water flow rate.

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