Self-cleaning water supply tank, self-cleaning water supply system and water supply method

Abstract

The present application relates to the technical field of intelligent cleaning equipment for water supply tank, and particularly relates to a self-cleaning water supply tank, a self-cleaning water supply system and a water supply method. The self-cleaning water supply tank comprises a tank body, a support frame supporting the tank body internally, a flushing pipeline being a tubular structure for water communication internally and being located in the tank body as a part of the support frame, and N flushing nozzles connected to the flushing pipeline, wherein N is greater than or equal to 1. The flushing pipeline and the internal support structure are combined into one, the nozzles can be arranged in any unobstructed space without the need of additional pipelines, thereby realizing unlimited installation of the flushing nozzles, avoiding the obstruction of the traditional frame support system to the flushing of the tank body internally, and realizing flushing without dead angle.

Description

Technical Field

[0001] This invention relates to the field of intelligent cleaning equipment for water supply tanks, and in particular to a self-cleaning water supply tank, a self-cleaning water supply system, and a water supply method. Background Technology

[0002] Cleaning secondary water supply tanks has always been a challenge in water supply systems. Traditional tank cleaning requires regular manual operation, which is not only time-consuming and labor-intensive but also inefficient, especially for large tanks. Furthermore, manual cleaning can also contaminate the water quality due to improper operation.

[0003] To address these issues, self-cleaning water tanks have emerged on the market. However, these either have complex flushing structures or can only automate the flushing of smaller, frameless tanks. Meanwhile, some larger tanks, due to large fluctuations in water consumption, cannot match water usage with water supply, often resulting in older water ages and impacting water quality. Summary of the Invention

[0004] I. Technical problems to be solved

[0005] The present invention aims to at least partially solve one of the above-mentioned technical problems.

[0006] II. Technical Solution

[0007] The first aspect of this invention provides a self-cleaning water supply tank. The self-cleaning water supply tank includes: a tank body; a support frame supporting the tank body internally; a flushing pipeline, which is an internally connected tubular structure capable of carrying water, located inside the tank body as part of the support frame; and N flushing nozzles connected to the flushing pipeline, where N≥1.

[0008] In some embodiments of the present invention, the flushing pipes are evenly distributed inside the housing, including: horizontal flushing pipes and vertical flushing pipes.

[0009] In some embodiments of the present invention, the flushing pipeline is a steel pipe with internal water flow.

[0010] In some embodiments of the present invention, N≥2, and N rinsing nozzles are evenly distributed inside the housing.

[0011] In some embodiments of the present invention, the flushing nozzle is a three-dimensional flushing nozzle with dual-dimensional automatic rotation, the three-dimensional flushing nozzle comprising two or more point-outlet nozzles; wherein, the dual-dimensional automatic rotation comprises: the flushing nozzle rotating around the flushing pipeline; and the point-outlet nozzles rotating around the flushing nozzle.

[0012] In some embodiments of the present invention, the drain trough is located at the bottom of the tank and is connected to the drainage side via a corresponding valve.

[0013] A second aspect of the present invention provides a self-cleaning water supply system. The self-cleaning water supply system includes: water tank A and water tank B, both of which are self-cleaning water supply tanks as described above, and both are connected to the drain side via valves A3 and B3 respectively; a flushing water pump, the first end of which is connected to the tank bodies of water tank A and water tank B via valves A1 and B1 respectively; and the second end of which is connected to the flushing pipes of water tank A and water tank B via valves A2 and B2 respectively; wherein, when cleaning one of water tank A and water tank B, the other is used as the cleaning water source.

[0014] In some embodiments of the present invention, the tank bodies of water tank A and water tank B are respectively connected to the water inlet side via valve A4 and valve B4; the tank bodies of water tank A and water tank B are respectively connected to the user side via valve A5 and valve B5; valves A1 to A5 and valves B1 to B5 are all electrically controlled valves; and the invention also includes: an automatic control module, whose control signal output terminal is respectively connected to: valves A1 to A5; valves B1 to B5; and a flushing water pump.

[0015] In some embodiments of the present invention, both water tank A and water tank B include: a level gauge disposed inside the water tank; a flow meter disposed in the outlet pipeline; and the sensing signal input terminal of the automatic control module is connected to the level gauge and the flow meter of water tank A and water tank B.

[0016] In some embodiments of the present invention, both water tank A and water tank B are rectangular parallelepipeds and are arranged side by side.

[0017] In some embodiments of the present invention, the total volume of water tank A and water tank B meets the normal water supply requirements.

[0018] In some embodiments of the present invention, water tank A and water tank B serve as backups for each other; one of them operates with full water while the other is emptied for cleaning.

[0019] In some embodiments of the present invention, the self-cleaning water supply system operates in one of the following two cleaning states: ① Water tank B cleaning state, wherein valve B3 is open; valve A1 is open; valve B1 is closed; valve A2 is closed; valve B2 is open; the flushing water pump is started; the flushing water pump pumps water from water tank A into the flushing pipeline of water tank B to clean the inside of water tank B; ② Water tank A cleaning state, wherein valve A3 is open; valve B1 is open; valve A1 is closed; valve B2 is closed; valve A2 is open; the flushing water pump is started; the flushing water pump pumps water from water tank B into the flushing pipeline of water tank A to clean the inside of water tank A.

[0020] A third aspect of the present invention provides a water supply method. This water supply method is used to clean water tank B in the self-cleaning water supply system described above. The method is executed by an automatic control module and includes: step C, opening valve B3; step D, opening valve A1 and closing valve B1; closing valve A2 and opening valve B2; step E, starting the flushing water pump to pump water from the tank of water tank A into the flushing pipeline of water tank B to clean the interior of water tank B.

[0021] In some embodiments of the present invention, step C further includes: closing valve A3;

[0022] In some embodiments of the present invention, the method further includes the following steps before step D: Step A, ensuring that water tank A has sufficient cleaning water and emptying water tank B; Step B, opening valve A5 and closing valve B5; opening valve A4 and closing valve B4.

[0023] In some embodiments of the present invention, the self-cleaning water supply system further includes: a chemical disinfection system, a pipeline connected between the flushing water pump and valves A2 and B2; the water supply method includes: step S10, executing steps C to E to achieve clean water cleaning of water tank B; step S20, connecting the chemical disinfection system to the pipeline between the flushing water pump and water tank B to achieve chemical disinfection of water tank B; step S30, disconnecting the chemical disinfection system to achieve clean water cleaning of water tank B and remove disinfectant residue in the water tank.

[0024] A fourth aspect of the present invention provides a water supply method. This water supply method is used to control the water age of water tank A or water tank B in the self-cleaning water supply system described above. The method is executed by an automatic control module and includes: step S110, detecting the outflow rate; step S118, calculating the average water age of the water tank according to the following formula: Where V(t) and Q(t) are the water volume and flow rate in the water tank as they change over time, and T is the calculation period; Step S120: Determine whether the average water age of the water tank exceeds the preset water age threshold. If so, proceed to step S122; Step S122: Reduce the water inflow and proceed to step S110.

[0025] In some embodiments of the present invention, in step S118, the calculation period T is 1 hour, 30 minutes or 15 minutes.

[0026] In some embodiments of the present invention, in step S120, if the average water age of the water tank does not exceed a preset water age threshold, step S124 is executed; after step S110, the method further includes: step S124, analyzing the time variation pattern of water consumption; step S126, adjusting the inlet water volume to match the time variation pattern of water consumption, and executing step S110; step S128, obtaining the minimum water consumption period within the cleaning cycle according to the water consumption variation pattern, and cleaning the water tank within the minimum water consumption period, with the cleaning cycle being daily, weekly, or monthly.

[0027] In some embodiments of the present invention, a level gauge is provided in the water tank; before step S110, the method further includes: step S104, receiving the water level of the water tank uploaded by the level gauge; step S106, determining whether the water level of the water tank is lower than the preset lower limit of the water level, if so, proceeding to step S108; otherwise, proceeding to step S110; step S108, increasing the water inflow, and proceeding to step S104.

[0028] In some embodiments of the present invention, a water flow meter is installed on the water outlet pipe of the water tank, and the process between steps S110 and S228 further includes: step S112, determining whether the water flow rate is within the preset water flow rate range; if so, proceeding to step S116; otherwise, proceeding to step S114; step S114, adjusting the water flow rate and proceeding to step S110; step S116, recording the current time.

[0029] III. Beneficial Effects

[0030] As can be seen from the above technical solution, the present invention has at least one or more of the following beneficial effects compared to the prior art:

[0031] (1) The flushing pipeline and internal support structure are integrated into one.

[0032] In existing technologies, a single flushing nozzle is sufficient for internal flushing of small water supply tanks. However, for large water tanks, due to their larger size, a frame-type support system needs to be installed according to the steel plates used for each tank section. The complex structure of these frame-type support systems obstructs the flushing process, making it impossible to achieve all-around flushing from a single automatic flushing nozzle. Furthermore, a multi-nozzle system requires additional connecting pipelines, making the situation even more complicated.

[0033] This invention integrates the flushing pipeline and internal support structure into one, allowing the nozzles to be placed in any unobstructed space without the need for additional piping. This enables unrestricted installation of the flushing nozzles and avoids the obstruction of the water tank's internal flushing by traditional frame support systems, achieving flushing without dead angles. Furthermore, the self-cleaning water supply tank of this invention eliminates the need for manual cleaning inside the tank, ensuring rapid resumption of production without affecting the tank's functionality. The device is simple, easy to operate, and reliably effective.

[0034] In particular, the present invention does not turn all the support structure into flushing pipelines. Instead, it uses part of the support structure as flushing pipelines according to the flushing needs, while the rest only performs the support function and does not need to be internally connected. This allows for the setting of flushing pipelines as needed, reducing unnecessary internal connection nodes and places where dirt can accumulate.

[0035] (2) Two-dimensional automatic rotating three-dimensional flushing nozzle

[0036] Unlike welding branch pipes to the main pipeline to achieve X-shaped cross water pipes, this invention uses a three-dimensional flushing nozzle with dual-dimensional automatic rotation, which can achieve 360-degree powerful flushing without dead angles. Moreover, the nozzle rotates itself through the water spraying process, resulting in lower cost and higher reliability.

[0037] (3) Dual water tanks are used in conjunction and can be used interchangeably.

[0038] Unlike existing technologies that use sufficiently large water tanks to meet water supply needs, this invention uses a water tank consisting of tank A and tank B. Both tank A and tank B are cuboid in shape and are arranged side-by-side. The total volume of tanks A and B meets normal water supply requirements; that is, the combined volume of A and B equals that of a single large water tank to meet normal water supply needs. This arrangement reduces the difficulty and cost of manufacturing large-volume water tanks and facilitates the layout of various pipelines.

[0039] Furthermore, compared to existing technologies that require a separate high-pressure water source for cleaning, this invention uses its own separate water tank, greatly simplifying the cleaning process, reducing safety risks, and making it more advanced and efficient. Moreover, cleaning wastewater is discharged through a bottom drain, eliminating the need for separate tank operation during the cleaning process, making it even more convenient to use.

[0040] In particular, water tank A and water tank B of this invention serve as backups for each other; one of them operates with full water while the other is emptied for cleaning, thus ensuring uninterrupted water supply even during tank cleaning. Furthermore, regarding the flushing period, this invention uses a computer program to statistically analyze the water usage patterns of the water supply system to determine off-peak water usage periods. Performing tank cleaning during these off-peak periods minimizes the impact of tank cleaning on the water supply system, ensuring uninterrupted water supply.

[0041] (4) Strictly control water age to ensure water safety

[0042] Unlike existing technologies that use sufficiently large water tanks to meet water demand, this invention uses a water tank equipped with a level gauge and a flow meter for detection. The automatic control module can predict water demand during a given period, so the water tank is not always full during normal water supply and flushing. The water level in the tank is kept to a minimum, ideally just enough to meet demand. This strictly controls the water age, i.e. the time the water stays in the tank, thus improving water supply safety.

[0043] (5) Water age is controlled through data monitoring and statistical analysis, and water tanks are cleaned.

[0044] Unlike existing technologies that rely on complex water quality data monitoring and uploading, and rely on the replacement of the entire water body to improve water quality, this invention statistically analyzes water consumption at various times throughout the day. While ensuring water safety, it monitors water consumption and water level in real time using flow meters and level gauges, controlling the inflow rate and water age (storage time) to meet preset water age thresholds. This optimizes water quality and reduces water quality deterioration caused by long-term storage. On the one hand, it reduces system complexity and improves robustness; on the other hand, it saves water and improves water resource utilization efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the self-cleaning water supply tank in an embodiment of the present invention.

[0046] Figure 2 This is a schematic diagram of the connection relationship of the self-cleaning water supply system according to an embodiment of the present invention.

[0047] Figure 3 This is a flowchart of the first embodiment of the water supply method of the present invention.

[0048] Figure 4 This is a flowchart of the second embodiment of the water supply method of the present invention. Detailed Implementation

[0049] To address the issue of requiring regular manual cleaning of secondary water supply tanks, this invention provides a novel self-cleaning water tank. This tank features flushing pipes integrated within a support frame and is equipped with corresponding supporting facilities and a water supply method to achieve automatic cleaning, reduce water age, and ensure water quality.

[0050] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0051] The first aspect of the present invention provides a self-cleaning water supply tank. Figure 1 This is a schematic diagram of the structure of the self-cleaning water supply tank according to an embodiment of the present invention. Figure 1 As shown, the self-cleaning water supply tank in this embodiment includes: a tank body 1; a support frame 2 that supports the tank body from the inside; a flushing pipe 3, which is a tubular structure that is internally connected and can carry water, and is located inside the tank body as part of the support frame; and a flushing nozzle 4 connected to the flushing pipe.

[0052] The following is a detailed description of each component of the self-cleaning water supply tank in this embodiment.

[0053] like Figure 1As shown, in this embodiment, the flushing pipe 3 is an internally connected steel pipe structure that allows water to pass through, including one of the following flushing pipe directions: a horizontal flushing pipe and a vertical flushing pipe. The ends of the flushing pipes are connected to the external support frame to form an integrated box-shaped support structure.

[0054] In existing technologies, a single flushing nozzle is sufficient for internal flushing of small water supply tanks. However, for large water tanks, due to their larger size, a frame-type support system needs to be installed according to the steel plates used for each tank section. The complex structure of these frame-type support systems obstructs the flushing process, making it impossible to achieve all-around flushing from a single automatic flushing nozzle. Furthermore, a multi-nozzle system requires additional connecting pipelines, making the situation even more complicated.

[0055] This invention integrates the flushing pipeline and internal support structure into one, thereby enabling unrestricted installation of the flushing nozzles. The nozzles can be placed in any unobstructed space without the need for additional piping, avoiding the obstruction of the water tank's internal flushing by traditional frame support systems and achieving flushing without dead angles. Furthermore, the self-cleaning water supply tank of this invention eliminates the need for manual cleaning inside the tank, ensuring rapid resumption of production without affecting the tank's functionality. The device is simple, easy to operate, and reliably effective.

[0056] In particular, the present invention does not turn all the support structure into flushing pipelines. Instead, it uses part of the support structure as flushing pipelines according to the flushing needs, while the rest only performs the support function and does not need to be internally connected. This allows for the setting of flushing pipelines as needed, reducing unnecessary internal connection nodes and places where dirt can accumulate.

[0057] like Figure 1 As shown, in this embodiment, the flushing nozzle 4 is a three-dimensional flushing nozzle with dual-dimensional automatic rotation. The three-dimensional flushing nozzle includes two or more point-out water nozzles. The dual-dimensional automatic rotation includes the flushing nozzle rotating around the flushing pipeline and the point-out water nozzles rotating around the flushing nozzle.

[0058] Unlike welding branch pipes to the main pipeline to achieve X-shaped cross water pipes, this invention uses a three-dimensional flushing nozzle with dual-dimensional automatic rotation, which can achieve 360-degree powerful flushing without dead angles. Moreover, the nozzle rotates itself through the water spraying process, resulting in lower cost and higher reliability.

[0059] A second aspect of the present invention provides a self-cleaning water supply system. Figure 2 This is a schematic diagram showing the connection relationship of the self-cleaning water supply system according to an embodiment of the present invention. Figure 2 As shown, the self-cleaning water supply system in this embodiment includes:

[0060] Water tanks A and B both contain a level gauge 12; for water tanks A and B:

[0061] ① Both boxes are connected to the user side via valves A5 and B5 and corresponding water outlet pipes 6, respectively. Water flow meters 11 are installed on the water outlet pipes of both boxes.

[0062] ② Both tanks are connected to the drain side via valves A3 and B3 and corresponding drain pipes 8, respectively; and the overflow pipes 9 of both tanks are connected to the drain side.

[0063] ③ Both tanks are connected to the water inlet side via valves A4 and B4 and corresponding water inlet pipes, respectively;

[0064] The flushing water pump 7 has its first end connected to the tanks of water tank A and water tank B respectively through valves A1 and B1; its second end is connected to the flushing pipes 5 of water tank A and water tank B respectively through valves A2 and B2.

[0065] The chemical dosing and disinfection system 14 is a pipeline connected between the flushing water pump and valves A2 and B2;

[0066] The automatic control module 13 has its sensor signal input terminal connected to the level gauges 12 of water tank A and water tank B; its control signal output terminal is connected to: valves A1 to A5; valves B1 to B5; and flushing water pump 7, respectively.

[0067] The following sections will provide a detailed description of each component of the self-cleaning water supply system in this embodiment.

[0068] Unlike existing technologies that use sufficiently large water tanks to meet water supply demands, such as Figure 2 As shown, in this embodiment, the water supply tank consists of tank A and tank B. Both tank A and tank B are cuboid in shape and are arranged side by side. The total volume of tank A and tank B meets the normal water supply requirements; that is, the combined volume of A and B constitutes a large water tank that meets normal water supply needs. This arrangement reduces the difficulty and cost of manufacturing large-volume water tanks and facilitates the layout of various pipelines.

[0069] With the above settings, the self-cleaning water supply system of this embodiment can operate in one of the following two cleaning states:

[0070] ① Water tank B cleaning status

[0071] Among them, valve B3 is opened; valve A1 is opened; valve B1 is closed; valve A2 is closed; valve B2 is opened; the flushing water pump is started; the flushing water pump pumps water from water tank A into the flushing pipeline of water tank B to clean the inside of water tank B.

[0072] At the same time, valve A5 opens and valve B5 closes; valve A4 opens and valve B4 closes, and water tank A supplies water to users normally.

[0073] ② Water tank A cleaning status

[0074] During the process, valve A3 is opened; valve B1 is opened; valve A1 is closed; valve B2 is closed; valve A2 is opened; the flushing water pump is started; the flushing water pump pumps water from water tank B into the flushing pipeline of water tank A to clean the inside of water tank A.

[0075] At the same time, valve B5 opens and valve A5 closes; valve B4 opens and valve A4 closes, and water tank B supplies water to users normally.

[0076] As can be seen, compared to existing technologies that require a separate high-pressure water source for cleaning, this embodiment uses its own separate water tank, which greatly simplifies the cleaning operation, reduces safety risks, and is more advanced and reasonable. Furthermore, the cleaning wastewater is discharged through the bottom drain, eliminating the need for separate tank operation during the cleaning process, making it even more convenient to use.

[0077] In particular, in this embodiment, water tank A and water tank B serve as backups for each other; one of them operates with full water while the other is emptied for cleaning, thus ensuring uninterrupted water supply even during tank cleaning. Furthermore, regarding the flushing period, this invention uses a computer program to statistically analyze the water usage patterns of the water supply system to determine off-peak water usage periods. Performing tank cleaning during these off-peak periods minimizes the impact of tank cleaning on the water supply system, ensuring uninterrupted water supply.

[0078] In this embodiment, the self-cleaning water supply system includes two water tanks, but the present invention is not limited thereto. In other embodiments of the present invention, the self-cleaning water supply system may also include three, four, five or more water tanks, which can also achieve the technical effect of mutual backup, with one tank being emptied for cleaning while the other provides a water source, and this is also within the protection scope of the present invention.

[0079] In this embodiment, both water tank A and water tank B are Figure 1 The water tanks shown are not limited to this invention. In other embodiments of the invention, as long as water tanks A and B are equipped with self-cleaning pipes and flushing nozzles, the invention can also be achieved and is also within the scope of protection of the invention.

[0080] Based on the aforementioned self-cleaning water supply system, the present invention also provides a water supply method for cleaning the water tank in the self-cleaning water supply system. In one embodiment of the present invention, cleaning water tank B is taken as an example. Figure 3 This is a flowchart of the first embodiment of the water supply method according to the present invention. Figure 3 As shown, the water supply method in this embodiment includes:

[0081] Step A, cleaning preparation; water tank A has sufficient water, water tank B is emptied;

[0082] In this embodiment, water tank A is filled with water before cleaning, but this invention is not limited to this. The overall volume of the water tank is determined according to the maximum water supply during peak periods, for example, 20 cubic meters, with A and B each holding 10 cubic meters. During off-peak periods, only 2 cubic meters may be needed. Since rinsing the water tank requires 5 cubic meters, water tank A only needs to hold 7 cubic meters. It does not necessarily need to be filled to 10 cubic meters.

[0083] Unlike existing technologies that use sufficiently large water tanks to meet water demand, this embodiment uses a water tank equipped with a level gauge and a flow meter for detection. The automatic control module can predict the water demand during a given period. Therefore, the water tank is not always full during normal water supply and flushing, minimizing the amount of water in the tank. Ideally, the water should be just enough to meet the demand. This strictly controls the water age, i.e. the time the water stays in the tank, thus improving water supply safety.

[0084] Step B: Open valve A4 and close valve B4; open valve A5 and close valve B5.

[0085] Step C: Close valve A3; Open valve B3;

[0086] Step D: Open valve A1 and close valve B1; close valve A2 and open valve B2.

[0087] Step E: Start the flushing water pump;

[0088] Under the pumping force of the flushing water pump 7, the water stored in tank A flows through the flushing water pump 7, valve B2, and flushing pipeline of tank B, automatically rotating the three-dimensional flushing nozzle 4. Under the pressure and backflush action of the nozzle, three-dimensional rotating flushing of the interior of tank B is achieved.

[0089] As mentioned above, in this embodiment, the self-cleaning water supply system further includes a chemical disinfection system 14, connected in a pipeline between the flushing water pump and valves A2 and B2. In this case, the water supply method of this embodiment can achieve chemical disinfection. Specifically, the water supply method of this embodiment includes:

[0090] Step S10: Perform steps A to E to clean water tank B.

[0091] Step S20: Connect the dosing disinfection system to the pipeline between the flushing water pump and water tank B to achieve dosing disinfection of water tank B;

[0092] Step S30: Disconnect the dosing and disinfection system to rinse water tank B with clean water and remove any disinfectant residue inside the tank.

[0093] In summary, the water supply method of this embodiment achieves automated cleaning of the water tank by integrating an automatic cleaning system: reducing the need for manual cleaning, improving efficiency and reducing costs.

[0094] Based on the self-cleaning water supply system described above, the present invention also provides a water supply method. In this water supply method, the automatic control module 13 acquires data from the outlet flow meter 11 and the level meter 12 in real time, and gradually estimates the water consumption pattern through conversion. Then, by controlling the inlet pipe 10 and the inlet valve, the water age in the water tank is controlled to optimize the water quality.

[0095] Figure 4 This is a flowchart of the second embodiment of the water supply method of the present invention. Figure 4 As shown, the water supply method in this embodiment includes:

[0096] Step S102: Initialize the water tank status;

[0097] Step S104: Receive the water level in the tank uploaded by the level gauge;

[0098] Step S106: Determine whether the water level in the tank is lower than the preset lower limit. If yes, proceed to step S108; otherwise, proceed to step S110.

[0099] Step S108: Increase the opening of the inlet valve to increase the inlet water flow until the preset stop water level is reached, then execute step S104;

[0100] Step S110: Detect the outflow rate;

[0101] Step S112: Determine whether the outflow rate is within the preset outflow rate range. If yes, proceed to step S116; otherwise, proceed to step S114.

[0102] Step S114: Adjust the water flow rate and execute step S110;

[0103] Step S116: Record the current time;

[0104] Step S118: Calculate the water age;

[0105] For municipal water supply, water usage occurs constantly, and water tanks are continuously replenished. Therefore, the water flow rate or water level in the tank varies over time, with intermittent replenishment or peak usage periods. The applicant proposes the following formula to calculate the average water age of the tank:

[0106]

[0107] Where V(t) and Q(t) are the water volume and flow rate in the tank over time, respectively, and T is the calculation period. Considering water usage, the value of T is determined based on actual needs, for example, it can be 1 hour, 30 minutes, or 15 minutes. In this embodiment, T = 15 minutes.

[0108] Step S120: Determine whether the average water age of the water tank exceeds the preset water age threshold. If yes, proceed to step S122; otherwise, proceed to step S124.

[0109] Step S122, reduce the water inflow, proceed to step S110;

[0110] Step S124: Analyze the time variation pattern of water consumption and record the usual patterns;

[0111] Step S126: Adjust the water inflow to match the time variation pattern of water consumption, and execute step S110;

[0112] By monitoring the correlation between water pressure, instantaneous flow rate, and total water consumption using certain methods, the water volume in the tank can be strictly controlled, and the water age can be managed. Specifically,

[0113] Unlike existing technologies that rely on complex water quality data monitoring and uploading to improve water quality through complete water body replacement, this embodiment statistically analyzes water consumption at various times throughout the day. While ensuring water safety, it monitors water consumption and water level in real time using flow meters and level gauges, controlling the inflow rate and water age (storage time) to meet preset water age thresholds. This optimizes water quality and reduces water quality deterioration caused by long-term storage. On the one hand, it reduces system complexity and improves robustness; on the other hand, it saves water and improves water resource utilization efficiency.

[0114] Step S128: Based on the water consumption variation pattern, the lowest water consumption period within the cleaning cycle is obtained as the water tank cleaning period, and the water tank is cleaned within this water tank cleaning period.

[0115] The cleaning cycle is daily, weekly, or monthly.

[0116] Taking a day as an example, the time period with the longest average water age is counted and used as the time period for water tank cleaning.

[0117] Unlike existing technologies that fix the water tank cleaning time at a specific time in the early morning, in this embodiment, the cleaning time is predicted based on the water consumption variation pattern, and the cleaning is automatically selected during the low water consumption period, which is more targeted and has less impact on normal production and life.

[0118] ② Control the water inflow rate at different time periods to control the water age.

[0119] This concludes the description of the various embodiments of the present invention. Based on the above description, those skilled in the art should have a clear understanding of the present invention.

[0120] It should be noted that for certain implementation methods, if they are not the key content of this invention and are well known to those skilled in the art, they are not described in detail in the accompanying drawings or text due to space limitations. In such cases, they can be understood by referring to the relevant prior art.

[0121] The ordinal numbers used in this invention, such as "first", "second", "third", "primary", "secondary", as well as Arabic numerals and letters, to modify the corresponding elements (or steps), are intended only to make one element (or step) with a certain name clearly distinguishable from another element (or step) with the same name, and do not mean that the element (or step) has any ordinal number, nor do they represent the order of one element (or step) with another element (or step).

[0122] For the steps in this invention, unless specifically described or steps that must occur in sequence, the order of the steps is not limited to those listed above, and can be varied or rearranged according to the desired design.

[0123] The directional terms used in this invention, such as "center," "lateral," "longitudinal," "top," "bottom," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," indicate only the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the purpose of facilitating and simplifying the description of this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, throughout the accompanying drawings, the same elements are represented by the same or similar reference numerals. Also, the shapes and dimensions of the components in the drawings do not reflect actual size and proportion, but are only illustrative of embodiments of this invention.

[0124] Those skilled in the art will understand that in the claims and specification of this invention, the word "comprising" does not exclude the presence of elements (or steps) not listed in the claims. The word "a" or "an" preceding an element (or step) does not exclude the presence of a plurality of such elements (or steps).

[0125] Furthermore, the above embodiments are provided only to enable the invention to meet legal requirements, and the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0126] Similarly, it should be understood that, for the sake of brevity, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of invention should not be construed as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, the various inventive aspects consist of fewer than all the features of the preceding single embodiment. Furthermore, embodiments may be used in combination with each other or with other embodiments based on design and reliability considerations; that is, technical features from different embodiments can be freely combined to form more embodiments. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0127] The above specific embodiments have provided a detailed description of the purpose, technical means, and beneficial effects of the present invention. It should be understood that the purpose of the detailed description is to enable those skilled in the art to better understand the present invention, and it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water supply method characterized by, The water age control for the water tank A or the water tank B in the self-cleaning water supply system is performed by the self-control module, The self-cleaning water supply system comprises: The water tank A and the water tank B are both self-cleaning water supply tanks, and are connected to a drainage side through a valve A3 and a valve B3 respectively; wherein the self-cleaning water supply tank comprises: a tank body; a support frame supporting the tank body internally; a flushing pipeline being a tubular structure communicating water internally and being located in the tank body as a part of the support frame; N flushing nozzles connected to the flushing pipeline, N≥1; A flushing water pump, whose first end is connected to the tank body of the water tank A and the water tank B through a valve A1 and a valve B1 respectively; and whose second end is connected to the flushing pipeline of the water tank A and the water tank B through a valve A2 and a valve B2 respectively; Wherein, when one of the water tank A and the water tank B is cleaned, the other one is used as a cleaning water source; the tank body of the water tank A and the water tank B is connected to a water inlet side through a valve A4 and a valve B4 respectively; the tank body of the water tank A and the water tank B is connected to a user side through a valve A5 and a valve B5 respectively; the valves A1-A5 and the valves B1-B5 are all electrically controlled valves; The self-cleaning water supply system further comprises: a self-control module, whose control signal output end is connected to the valves A1-A5, the valves B1-B5 and the flushing water pump respectively; The water supply method comprises: Step S110, detecting the water outlet flow; Step S118, calculating the water tank average water age according to the following formula: Wherein, V(t) and Q(t) are the water storage and the flow rate in the water tank changing with time, and T is the calculation period; Step S120, judging whether the water tank average water age exceeds a preset water age threshold value, if yes, executing step S122, if not, executing step S124; Step S122, reducing the water inlet flow, and executing step S110; Step S124, analyzing the water consumption time variation law; Step S126, adjusting the water inlet flow to match the water consumption time variation law, and executing step S110; Step S128, obtaining the lowest water consumption period in the cleaning period according to the water consumption variation law, and cleaning the water tank in the lowest water consumption period, wherein the cleaning period is every day, every week or every month.

2. The water supply method according to claim 1, wherein In step S118, the calculation period T is 1 hour, 30 minutes or 15 minutes.

3. The water supply method according to claim 1, wherein The water tank is provided with a liquid level meter; and before step S110, the method further comprises: Step S104, receiving the water tank water level uploaded by the liquid level meter; Step S106, judging whether the water tank water level is lower than a preset lower limit of water level, if yes, executing step S108; otherwise, executing step S110; Step S108, increasing the water inlet flow, and executing step S104; And / or, the water outlet pipeline of the water tank is provided with a water outlet flow meter, and between steps S110 and S118, the method further comprises: Step S112, judging whether the water outlet flow is within a preset water outlet flow range, if yes, executing step S116; otherwise, executing step S114; Step S114, adjusting the water outlet flow, executing step S110; Step S116, recording the current time.

4. The water supply method according to claim 1, characterized by, In the self-cleaning water supply tank, The flushing pipelines are uniformly distributed in the tank body and include horizontal flushing pipelines and vertical flushing pipelines. And / or, the flushing pipelines are steel pipes with water flowing inside. And / or, N≥2, and N flushing nozzles are uniformly arranged in the tank body. And / or, the flushing nozzles are three-dimensional flushing nozzles capable of rotating in two dimensions, and the three-dimensional flushing nozzles include two or more point water outlet nozzles. And / or, the sewage tank is located at the bottom of the tank body and is connected to the water drainage side through a corresponding valve.

5. The water supply method according to claim 1, wherein In the self-cleaning water supply system, The water tank A and the water tank B both include a liquid level gauge arranged in the water tank and a water outlet flow gauge arranged in the water outlet pipeline, and the sensing signal input end of the self-control module is connected to the liquid level gauges and the water outlet flow gauges of the water tank A and the water tank B. And / or, the water tank A and the water tank B are both cuboids and are arranged side by side. And / or, the total volume of the water tank A and the water tank B meets the normal water supply demand. And / or, the water tank A and the water tank B are mutually standby, one of them is full of water and operates, and the other is empty and cleaned. And / or, the self-cleaning water supply system works in one of the following two cleaning states: ① water tank B cleaning state, in which the valve B3 is opened, the valve A1 is opened, the valve B1 is closed, the valve A2 is closed, the valve B2 is opened, and the flushing water pump is started; the flushing water pump pumps the water in the water tank A into the flushing pipeline of the water tank B to clean the inside of the tank body of the water tank B; ② water tank A cleaning state, in which the valve A3 is opened, the valve B1 is opened, the valve A1 is closed, the valve B2 is closed, the valve A2 is opened, and the flushing water pump is started; the flushing water pump pumps the water in the water tank B into the flushing pipeline of the water tank A to clean the inside of the tank body of the water tank A.

6. The water supply method according to claim 1, wherein The method is also used for cleaning the water tank B in the self-cleaning water supply system, and the self-control module is used to execute the method, and the water supply method further includes: Step C, opening the valve B3; Step D, opening the valve A1 and closing the valve B1, closing the valve A2 and opening the valve B2; Step E, starting the flushing water pump, pumping the water in the tank body of the water tank A into the flushing pipeline of the water tank B to clean the inside of the tank body of the water tank B.

7. The water supply method according to claim 6, wherein The step C further includes closing the valve A3. And / or, before the step D, the method further includes: step A, ensuring that the water tank A has sufficient cleaning water, and the water tank B is empty; step B, opening the valve A5 and closing the valve B5, and opening the valve A4 and closing the valve B4. And / or, the self-cleaning water supply system further comprises a dosing disinfection system connected to the pipeline between the flushing water pump and the valve A2, B2; the water supply method comprises: step S10, performing steps C-E to realize clean water cleaning of the water tank B; step S20, connecting the dosing disinfection system to the pipeline between the flushing water pump and the water tank B to realize dosing disinfection of the water tank B; and step S30, disconnecting the dosing disinfection system to realize clean water cleaning of the water tank B and remove the residual disinfectant in the water tank.

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