Gate valve control methods and gate valves

Abstract

This application relates to the field of gate valve technology, and particularly to a gate valve control method and a gate valve. The gate valve includes: a valve body having a conveying channel; a valve plate, partially located within the conveying channel and movably mounted on the valve body; a drive device mounted on the valve body, with its power output end connected to the valve plate; a flow acquisition device located within the conveying channel and mounted on the valve body; and an impurity detection device located within the conveying channel and near its input end, and mounted on the valve body. The drive device is used to drive the valve plate to either cut off or not cut off the conveying channel, the flow acquisition device is used to acquire the flow rate within the conveying channel, and the impurity detection device is used to detect impurities at the input end of the conveying channel. The gate valve control method and gate valve provided in this application can improve the problem of insufficient water supply or idle and wasted water resources caused by fluctuations in water demand from water users in water supply networks.

Description

Technical Field

[0001] This application belongs to the field of gate valve technology, and in particular relates to a gate valve control method and a gate valve. Background Technology

[0002] Gate valves are a common type of valve used to seal pipes and impede the flow of fluid. In real life, a water supply network in a region is usually composed of multiple gate valves and multiple pipes.

[0003] However, in areas with relatively scarce water resources, fluctuations in water demand (peak / valley) among various water users in the water supply network may lead to unreasonable water supply, resulting in insufficient water supply or idle and wasted water resources. Summary of the Invention

[0004] This application provides a gate valve control method and a gate valve, which can improve the problem of unreasonable water supply caused by fluctuations in water demand of water users in the water supply network, resulting in insufficient water supply or idle and wasted water resources.

[0005] In a first aspect, embodiments of this application provide a gate valve, comprising:

[0006] The valve body has a conveying channel;

[0007] A valve plate is partially located within the conveying channel and is movably mounted on the valve body;

[0008] A drive device is mounted on the valve body, and the power output end of the drive device is connected to the valve plate;

[0009] A flow acquisition device is located within the conveying channel and mounted on the valve body; and

[0010] An impurity detection device is located within the conveying channel and near the input end of the conveying channel, and is mounted on the valve body;

[0011] The driving device is used to drive the valve plate to cut off or not cut off the conveying channel, the flow acquisition device is used to acquire the flow rate in the conveying channel, and the impurity detection device is used to detect impurities at the input end of the conveying channel.

[0012] The technical solutions described in this application embodiment have at least the following technical effects:

[0013] The gate valve provided in this application embodiment transports liquid from the input end to the output end of the transport channel through a transport channel within the valve body. A driving device moves the valve plate close to the valve body, causing it to abut against the valve body to cut off the transport channel, preventing liquid from moving from the input end to the output end. Alternatively, the driving device moves the valve plate away from the valve body to connect the transport channel, allowing liquid to move from the input end to the output end. A flow rate acquisition device acquires flow rate data of the transport channel, and an impurity detection device acquires impurity content data at the input end of the transport channel, providing data reference for analyzing the valve plate's opening position and opening time.

[0014] Secondly, embodiments of this application provide a gate valve control method, including:

[0015] Obtain a water distribution network; wherein the water distribution network includes multiple control nodes, at least one water user node, at least one water supply node, and multiple connecting pipes, the water distribution network reflects the water supply system in a region, the control nodes reflect the gate valves in the water supply system, the water user node reflects the water user end in the water supply system, the water supply node reflects the water supply end in the water supply system, and the two ends of the connecting pipes are respectively connected to one of the water user node, the water supply node, and the connecting pipe;

[0016] Water usage monitoring information is obtained based on the water distribution network; wherein, the water usage monitoring information includes at least one water usage information corresponding to the water usage node, and the water usage information includes at least one high water usage period and at least one low water usage period;

[0017] Control information is obtained based on the water usage monitoring information and the water distribution network; wherein, the control information includes at least one control scheme, the control scheme includes a time node and a control command, and the control command is used to control the gate valve corresponding to the control node to change its working state at the time reflected by the time node.

[0018] The technical solutions described in this application embodiment have at least the following technical effects:

[0019] The gate valve control method provided in this application first acquires the water distribution network to clarify the composition and relationships of the water supply system, providing a basis for subsequent steps. Then, based on the water distribution network, it obtains water monitoring information including water usage information corresponding to at least one water-using node, identifies the temporal fluctuation characteristics of water demand, quantifies water usage patterns, and captures demand differences. Next, based on the water monitoring information and the water distribution network, it obtains control information including at least one control scheme, establishing a direct correlation between demand and control, achieving optimized supply-demand matching, and improving the problem of unreasonable water supply caused by fluctuations in water demand from water-using units, resulting in insufficient water supply or idle and wasted water resources. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0021] Figure 1 This is a schematic diagram of the structure of a gate valve provided in one embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of a gate valve provided in an embodiment of this application;

[0023] Figure 3 This is a schematic flowchart of a gate valve control method provided in an embodiment of this application;

[0024] Figure 4 This is a flowchart illustrating step S200 in a gate valve control method provided in an embodiment of this application;

[0025] Figure 5 This is a flowchart illustrating step S332 of the gate valve control method provided in an embodiment of this application.

[0026] The following are the labeling elements in the figure:

[0027] 100. Gate valve; 10. Valve body; 20. Valve plate; 30. Drive device; 40. Flow acquisition device; 50. Impurity detection device. Detailed Implementation

[0028] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0029] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0030] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0032] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0034] Gate valves are a common type of valve used to seal pipes and impede the flow of fluid. In real life, a water supply network in a region is usually composed of multiple gate valves and multiple pipes.

[0035] However, in areas with relatively scarce water resources, fluctuations in water demand (peak / valley) among various water users in the water supply network may lead to unreasonable water supply, resulting in insufficient water supply or idle and wasted water resources.

[0036] To improve the problem of insufficient water supply or idle and wasted water resources caused by the fluctuation of water demand of water users in the water supply network, the embodiments of this application provide the following solutions.

[0037] Please see Figure 1 This application provides a gate valve 100, which includes a valve body 10, a valve plate 20, a drive device 30, a flow acquisition device 40, and an impurity detection device 50, wherein:

[0038] The valve body 10 has a delivery channel.

[0039] The valve plate 20 is located within the conveying channel and is movably mounted on the valve body 10.

[0040] The drive device 30 is mounted on the valve body 10, and the power output end of the drive device is connected to the valve plate 20.

[0041] The flow acquisition device 40 is located in the conveying channel and is mounted on the valve body 10.

[0042] The impurity detection device 50 is located inside the conveying channel and near the input end of the conveying channel, and is mounted on the valve body 10.

[0043] The driving device 30 is used to drive the valve plate 20 to cut off or not cut off the conveying channel, the flow acquisition device 40 is used to acquire the flow rate in the conveying channel, and the impurity detection device 50 is used to detect impurities at the input end of the conveying channel.

[0044] It can be understood that the valve body 10 is a carrier with a conveying channel capable of conveying media, and can provide support for the valve plate 20, the drive device 30, the flow acquisition device 40, and the impurity detection device 50. The valve body 10 may have flanges at both ends, which are bolted to the media conveying pipeline. For example, the material of the valve body 10 may be gray cast iron, ductile iron, etc., but is not limited to these.

[0045] The valve plate 20 is a plate-like structure that cuts off or opens the conveying channel through linear movement (perpendicular to the direction of medium flow). For example, the valve plate 20 can be a rectangular plate or a circular plate, but is not limited to these.

[0046] The drive unit 30 is a power mechanism capable of driving the valve plate 20 to move and controlling the valve plate 20 to open (without cutting off the conveying channel) or close (cut off the conveying channel). For example, the drive unit 30 can be a DC servo motor, a double-acting cylinder, etc., but is not limited to these.

[0047] The flow acquisition device 40 is a device capable of monitoring the flow rate of the medium in the conveying channel in real time. For example, the flow acquisition device 40 can be an electromagnetic flow meter, a vortex flow meter, etc., but is not limited to these.

[0048] The impurity detection device 50 is a device that can monitor the content of impurities (such as particles and suspended matter) at the input end of the conveying channel. For example, the impurity detection device 50 can be a laser particle counter, an ultrasonic particle monitor, etc., but is not limited to these.

[0049] This configuration allows liquid to be transported from the input end to the output end of the conveying channel within the valve body 10. The valve plate 20 is moved closer to the valve body 10 by the drive device 30, causing it to abut against the valve body 10 and thus cutting off the conveying channel, preventing liquid from moving from the input end to the output end. Alternatively, the valve plate 20 can be moved away from the valve body 10 by the drive device 30 to connect the conveying channel, allowing liquid to move from the input end to the output end. The flow rate data of the conveying channel is acquired by the flow acquisition device 40, and the impurity content data at the input end of the conveying channel is acquired by the impurity detection device 50, providing data reference for analyzing the opening position and opening time of the valve plate 20.

[0050] Please see Figures 3 to 5 This application also provides a gate valve control method, which includes:

[0051] Obtain a water distribution network; wherein the water distribution network includes multiple control nodes, at least one water user node, at least one water supply node, and multiple connecting pipes. The water distribution network reflects the water supply system in a region. The control nodes reflect the gate valves 100 in the water supply system. The water user nodes reflect the water user end in the water supply system. The water supply nodes reflect the water supply end in the water supply system. The two ends of the connecting pipes are respectively connected to one of the water user node, the water supply node, and the connecting pipe.

[0052] Water use monitoring information is obtained based on the water distribution network; wherein, the water use monitoring information includes at least one water use information corresponding to a water use node, and the water use information includes at least one high water use period and at least one low water use period;

[0053] Control information is obtained based on water usage monitoring information and water distribution network; wherein, the control information includes at least one control scheme, the control scheme includes time nodes and control instructions, and the control instructions are used to control the gate valve 100 corresponding to the control node to change its working state at the time reflected by the time node.

[0054] As can be seen from the above, the gate valve control method provided in this application first obtains the water distribution network to clarify the composition and correlation of the water supply system, providing a basis for subsequent steps. Then, based on the water distribution network, it obtains water monitoring information including water usage information corresponding to at least one water-using node, identifies the temporal fluctuation characteristics of water demand, quantifies water usage patterns, and captures demand differences. Furthermore, based on the water monitoring information and the water distribution network, it obtains control information including at least one control scheme, establishes a direct correlation between demand and control, achieves supply and demand matching optimization, and improves the problem of unreasonable water supply caused by fluctuations in water demand from water-using units, resulting in insufficient water supply or idle and wasted water resources.

[0055] To better understand the gate valve control method provided in the embodiments of this application, the specific implementation process of the gate valve control method provided in the embodiments of this application will be described by way of example below.

[0056] Figure 3 A schematic flowchart of a gate valve control method provided in an embodiment of this application is shown. The gate valve control method includes:

[0057] S100, Obtain the water distribution network; wherein, the water distribution network includes multiple control nodes, at least one water user node, at least one water supply node, and multiple connecting pipes. The water distribution network reflects the water supply system in a region. The control nodes reflect the gate valves 100 in the water supply system. The water user nodes reflect the water user end in the water supply system. The water supply nodes reflect the water supply end in the water supply system. The two ends of the connecting pipes are respectively connected to one of the water user node, the water supply node, and the connecting pipe.

[0058] It is understood that water usage nodes can be residential communities, factories, etc., but are not limited to these. Water supply nodes can be industrial water supply stations, urban secondary water supply stations, etc., but are not limited to these. The method of obtaining the water distribution network can be receiving data transmitted by users, or importing data based on the existing water supply system, but is not limited to these. Obtaining the water distribution network clarifies the composition and relationships of the water supply system, providing a basis for subsequent steps.

[0059] S200, water use monitoring information is obtained based on the water distribution network; wherein, the water use monitoring information includes at least one water use information corresponding to a water use node, and the water use information includes at least one high water use period and at least one low water use period.

[0060] It is understandable that high water consumption periods reflect that the area corresponding to the water-using node has a large water consumption during that time period, while low water consumption periods reflect that the area corresponding to the water-using node has a small water consumption during that time period. Water consumption monitoring information based on the water distribution network can be obtained by acquiring the water consumption of the water-using node at various times throughout the day, identifying periods where water consumption is greater than or equal to a preset water consumption limit as high water consumption periods, and periods where water consumption is less than the preset water consumption limit as low water consumption periods. It can also be obtained by receiving data transmitted by users, but is not limited to these methods. Water consumption monitoring information obtained based on the water distribution network can identify the temporal fluctuation characteristics of water demand, quantify water consumption patterns, capture demand differences, and provide a basis for subsequent steps.

[0061] In one possible implementation, please refer to Figure 4 S200 obtains water use monitoring information based on the water distribution network, including:

[0062] S210, acquire the flow data transmitted by each water-using node; wherein, the flow data reflects the flow of the water-using node at each time point within a day.

[0063] It is understandable that the flow data transmitted by each water-using node can be obtained in the form of real-time flow data transmitted by the flow acquisition device 40 of the gate valve 100, which is directly associated with the water-using node (water flows directly into the water-using node through the gate valve 100), or by receiving data transmitted by the person in charge of the area corresponding to the water-using node, etc., but is not limited to these methods. Obtaining the flow data transmitted by each water-using node can provide a basis for subsequent steps.

[0064] S220 analyzes each flow data point separately, identifies the time points in the flow data where the flow rate is greater than or equal to the preset flow rate as high water flow points, and identifies the time points in the flow data where the flow rate is less than the preset flow rate as low water flow points.

[0065] It is understandable that the preset flow rate could be 150 cubic meters per hour, 300 cubic meters per hour, or different preset flow rates could be set according to the type of water use node (residential water use, industrial water use, etc.), but it is not limited to these. Obtaining high and low water volume nodes can provide a basis for subsequent steps.

[0066] For example, suppose the flow rates at the four time points of 8:00, 9:00, 10:00 and 11:00 are 170 cubic meters / hour, 160 cubic meters / hour, 80 cubic meters / hour and 90 cubic meters / hour respectively, and the preset flow rate is 150 cubic meters / hour. Then 8:00 and 9:00 are high water flow points, and 10:00 and 11:00 are low water flow points.

[0067] S230, the time periods formed by each adjacent high water volume node are identified as high water consumption time periods, the time periods formed by each adjacent low water volume node are identified as low water consumption time periods, and after identifying each high water consumption time period and each low water consumption time period as water consumption information, all water consumption information is identified as water consumption monitoring information.

[0068] It is understandable that high water consumption periods refer to periods with relatively high water consumption, and low water consumption periods refer to periods with relatively low water consumption. After identifying each high water consumption period and each low water consumption period as water consumption information, confirming all water consumption information as water consumption monitoring information can provide a basis for subsequent steps.

[0069] For example, assuming 7:00, 8:00, and 9:00 are high water volume periods, and 10:00, 11:00, and 12:00 are low water volume periods, then the high water volume period is 7:00-9:00, and the low water volume period is 10:00-12:00.

[0070] S300, control information is obtained based on water use monitoring information and water distribution network; wherein, the control information includes at least one control scheme, the control scheme includes time nodes and control instructions, and the control instructions are used to control the gate valve 100 corresponding to the control node to change its working state at the time reflected by the time node.

[0071] It is understandable that the control information obtained based on water usage monitoring information and the water distribution network can be obtained by sending the water usage monitoring information and the water distribution network to users and then receiving the data transmitted by the users. Alternatively, it can be obtained by first identifying key nodes based on the water distribution network. The key nodes are the control nodes that allow water to flow directly into the water-using nodes after passing through the control nodes. Then, when the water-using nodes are in a high water usage period, a control scheme is obtained to increase the opening of the gate valve 100 corresponding to the key node (making the opening of the gate valve 100 greater than 70% or 80%, the larger the opening, the greater the flow rate, and when the opening is 100%, the flow rate in the delivery channel is the maximum). When the water-using nodes are in a low water usage period, a control scheme is obtained to increase or decrease the opening of the gate valve 100 corresponding to the key node (making the opening of the gate valve 100 less than 40% or 30%, the smaller the opening, the smaller the flow rate, and when the opening is 0%, the flow rate in the delivery channel is the minimum), etc., but not limited to these methods. The gate valve 100 can be opened by increasing the opening degree through the drive device 30, which moves the valve plate 20 away from the valve body 10, thereby opening the delivery channel (increasing the area of ​​the delivery channel between the valve plate 20 and the valve body 10), but is not limited to this. The gate valve 100 can also be opened by decreasing the opening degree through the drive device 30, which moves the valve plate 20 closer to the valve body 10, thereby closing the delivery channel (or reducing the area of ​​the delivery channel between the valve plate 20 and the valve body 10), but is not limited to this. Based on water usage monitoring information and the control information obtained from the water distribution network, a direct link between demand and control can be established, achieving optimized supply and demand matching and improving the problem of unreasonable water supply caused by fluctuations in water demand from water users, resulting in insufficient water supply or wasted water resources.

[0072] In one possible implementation, please refer to Figure 4 S300 obtains control information based on water use monitoring information and the water distribution network, including:

[0073] S310, obtain water control node information based on the water distribution network; wherein, the water control node information includes at least one control node that is marked as a water control node and corresponds to at least one water user node.

[0074] It is understandable that obtaining water control node information based on the water distribution network can be achieved by using each water user node as the starting point for retrieval, obtaining the upstream water pipe corresponding to each water user node (the upstream water pipe is the connecting pipe through which water flows directly into the water user node), determining whether the upstream water pipe is in contact with a control node, and confirming the control node in contact with the upstream water pipe as a control node if the upstream water pipe is in contact with a control node, and repeating the above steps after confirming the upstream water pipe as the retrieval starting point until at least one control node is obtained. Alternatively, the water control node information obtained from the water distribution network can be sent to users and then data transmitted by users can be received, but this is not limited to these methods. Obtaining water control node information based on the water distribution network can provide a basis for subsequent steps.

[0075] In one possible implementation, please refer to Figure 4 S310, Based on the water distribution network, obtain water control node information, including:

[0076] S311, at least one water supply line is obtained based on the water distribution network; wherein, the water supply line includes at least one water supply node, a water use node and at least one connecting pipe, the water supply node is the water supply starting point of the water supply line, the water use node is the water supply ending point of the water supply line, each adjacent connecting pipe in the water supply line is connected, and the water supply line reflects that water can flow from the water supply starting point through at least one connecting pipe to the water supply ending point.

[0077] It is understandable that obtaining at least one water supply line based on the water distribution network can be achieved by starting from a water-using node and traversing all connecting pipes along the direction of water flow until the connecting pipe contacts the water supply node. Alternatively, it can be done by retrieving at least one water supply line corresponding to a water-using node from a pre-defined database using the water-using node as an index, but it is not limited to these methods. Obtaining at least one water supply line based on the water distribution network can provide a basis for subsequent steps.

[0078] S312, after marking the control node closest to the water consumption node along the connecting pipeline of each water supply line as the water control node, confirm all water control nodes as water control node information.

[0079] It can be understood that the control node closest to the water consumption node along the connecting pipeline of the water supply line is the node through which water flows directly into the water consumption node (water supply endpoint) after passing through the control node. Identifying all water control nodes as water control nodes can help identify key valves, strengthen the precise management of water consumption nodes, and provide a basis for subsequent steps.

[0080] S320, based on water control node information and water usage monitoring information, obtains an operation table; the operation table includes an operation time axis and the working status of each water control node at each time node on the operation time axis; the working status includes high flow state and low flow state.

[0081] It is understandable that when the operating state is high flow rate, the opening degree of the gate valve 100 corresponding to the water control node increases (opening degree greater than 70% or 80%), and when the operating state is low flow rate, the opening degree of the gate valve 100 corresponding to the water control node decreases (opening degree less than 40% or 30%). The operation table can be obtained based on the water control node information and water usage monitoring information. This can be achieved by searching each time node on the operation time axis (0:00-24:00) within the corresponding high and low water usage time periods of each water control node to obtain the operating state of the gate valve 100 corresponding to that time node (if the time node is within a high water usage time period, the operating state reflecting the large opening of the gate valve 100 is obtained; if the time node is within a low water usage time period, the operating state reflecting the small opening of the gate valve 100 is obtained). The operating states of each water control node corresponding to each time node are then confirmed as the operation table. Alternatively, the water control node information and water usage monitoring information can be sent to the user and then the user's transmitted data can be received, but this is not limited to these methods. The operation table, based on water control node information and water usage monitoring information, can clearly define the working status of the gate valve 100 corresponding to each water control node at each time point, providing a basis for subsequent steps.

[0082] In one possible implementation, please refer to Figure 4 S320, based on water control node information and water usage monitoring information, generates an operation table, including:

[0083] S321, map each high water consumption period and each low water consumption period from each water consumption information onto the operation time axis; the operation time axis reflects each moment within a day.

[0084] It is understood that the time range of the operation timeline can be 0:00-24:00, 12:00 of the same day-12:00 of the next day, etc., but is not limited to these. The time difference between adjacent time nodes on the operation timeline can be 15 minutes, 30 minutes, etc., but is not limited to these. Mapping the various high water consumption periods and various low water consumption periods from various water consumption information onto the operation timeline can standardize the operation rhythm and provide a basis for subsequent steps.

[0085] S322, the working status of the water control node corresponding to the water consumption node in each high water consumption period on the operation time axis is confirmed as high flow state; the working status of the water control node corresponding to the time node in each low water consumption period on the operation time axis is confirmed as low flow state.

[0086] It's understandable that, assuming a water usage node experiences high water consumption from 7:00 to 9:00 and low water consumption from 10:00 to 12:00, then the water control node corresponding to that water usage node will be in a high-flow state for each time point between 7:00 and 9:00 on the operation timeline, and in a low-flow state for each time point between 10:00 and 12:00 on the operation timeline. Confirming the high-flow and low-flow states provides a basis for subsequent steps.

[0087] S323, after all the high water consumption time periods and low water consumption time periods in all water consumption information are mapped onto the operation time axis, the operation time axis and the working status of each water control node at each time node on the operation time axis are confirmed as the operation table.

[0088] It is understandable that confirming the operation table can clearly define the working status of the gate valve 100 corresponding to each water control node at each time point, providing a basis for subsequent steps.

[0089] For example, suppose there are two water usage nodes, A and B. The water control node corresponding to water usage node A is water control node a, and the water control node corresponding to water usage node B is water control node b. The high water usage period for water usage node A is 7:00-9:00 and the low water usage period is 10:00-12:00. The high water usage period for water usage node B is 7:00-10:00 and the low water usage period is 11:00-12:00. The operation table is shown in Table 1 below.

[0090]

[0091] Table 1

[0092] S330 obtains control information based on the operation table and water distribution network.

[0093] It is understandable that control information obtained based on the operation table and water distribution network can be obtained by sending the operation table and water distribution network to users and then receiving data transmitted by users, or by dynamically adjusting the working status (adjusting the opening degree) of the gate valves 100 corresponding to each water control node on the water distribution network according to the operation table, etc., but is not limited to these methods. Obtaining control information based on the operation table and water distribution network can improve the problem of unreasonable water supply caused by fluctuations in water demand of water users in the water supply network, resulting in insufficient water supply or idle and wasted water resources.

[0094] In one possible implementation, please refer to Figure 4 S330 obtains control information based on the operation table and water distribution network, including:

[0095] S331, based on the operation table, multiple pre-control schemes are obtained, each corresponding to a water control node; wherein, the pre-control scheme includes a time node and a pre-control instruction corresponding to the time node, and the pre-control instruction is used to control the gate valve 100 corresponding to the water control node to change its working state.

[0096] It is understandable that the way to obtain multiple pre-control schemes corresponding to each water control node based on the operation table can be by receiving data transmitted by the user, or by obtaining a pre-control instruction for controlling the gate valve 100 corresponding to the water control node to change its working state at each time node according to the working state of the water control node corresponding to each time node on the operation table (for example, if the working state of water control node a corresponding to 7:00 in the operation table is high flow state, then a pre-control instruction is obtained to control the gate valve 100 corresponding to the water control node to switch its working state to high flow state (controlling the opening degree of gate valve 100 to be greater than 70% or 80%) at 7:00).

[0097] In one possible implementation, please refer to Figure 4 S331, based on the operation table, obtains multiple pre-control schemes corresponding to each water control node, including:

[0098] S3311, analyze each water control node corresponding to each time node in the operation table. If a water control node is in a high flow state and a low flow state at the same time node, then after obtaining the pre-control instruction that the water control node in the high flow state and the low flow state at the same time node will switch its working state to the high flow state at the time reflected by the time node, confirm the time node and the pre-control instruction as the pre-control scheme.

[0099] It is understandable that if a water control node simultaneously exhibits both high-flow and low-flow states at the same time, it means that the gate valve 100 corresponding to that water control node is simultaneously connected to the areas corresponding to at least two different water users. The pre-control command to switch the working state of the water control node to the high-flow state can ensure that the water demand of the water users is met.

[0100] S3312, if the working state of the water control node at the time node is only high flow state, after receiving the pre-control instruction that instructs the water control node to switch its working state to high flow state at the time reflected by the time node, the time node and the pre-control instruction are confirmed as the pre-control scheme.

[0101] It is understandable that if the water control node is only in a high-flow state at a given time point, it means that the gate valve 100 corresponding to that water control node needs to handle a large flow of water at that time. Receiving a control command instructing the water control node to switch its operating state to a high-flow state at the time indicated by the time point can ensure that the water demand of the water-using node is met.

[0102] S3313, if the working state of the water control node at the time node is only low flow state, after receiving the pre-control instruction that instructs the water control node to switch its working state to low flow state at the time reflected by the time node, the time node and the pre-control instruction are confirmed as the pre-control scheme.

[0103] It is understandable that if the working state of the water control node at a time node is only low flow, it means that the gate valve 100 corresponding to the water control node does not need to pass a large amount of water at that time node. The pre-control instruction that the water control node switches its working state to low flow (the opening of the gate valve 100 is less than 40% or 30%) at the time reflected by the time node can accurately control the flow distribution, meet the differentiated needs, and avoid "over-supply of water" caused by excessive opening.

[0104] S332, based on various pre-control schemes and water distribution networks, yields multiple control schemes.

[0105] It is understandable that multiple control schemes can be derived based on various pre-control schemes and the water distribution network. This could involve sending the pre-control schemes and the water distribution network to the user and then receiving the data transmitted by the user. Alternatively, it could involve acquiring the impurity status in the upstream pipeline corresponding to the water control node 5 or 10 minutes before switching the operating state of the water control node, and then deriving the control scheme based on the impurity status corresponding to the water control node and the pre-control scheme. However, this approach is not limited to these methods. Deriving multiple control schemes based on various pre-control schemes and the water distribution network can provide a basis for controlling the operating state of the gate valve 100.

[0106] In one possible implementation, please refer to Figure 5 S332, based on various pre-control schemes and water distribution networks, yields multiple control schemes, including:

[0107] S3321, classify the various pre-control schemes according to the water control nodes to obtain multiple analysis information corresponding to each water control node; among them, the analysis information includes multiple pre-control schemes sorted by time nodes from smallest to largest.

[0108] It is understandable that classifying the various pre-control schemes according to water control nodes and obtaining multiple analytical information can provide a basis for subsequent steps.

[0109] S3322, Analyze each piece of analysis information separately, and determine whether the pre-control instructions in two adjacent pre-control schemes are consistent. If the pre-control instructions in two adjacent pre-control schemes are inconsistent, and the pre-control instruction in the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to a low flow state, and the pre-control instruction in the pre-control scheme with the larger time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to a high flow state, then the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is identified as the analysis scheme, and the time node in the analysis scheme is identified as the analysis node. Based on the analysis scheme and the analysis node, the control scheme is obtained.

[0110] It is understandable that if the pre-control commands in two adjacent pre-control schemes are inconsistent, and the pre-control command in the inconsistent pre-control scheme with the smaller time node controls the water control node to switch its operating state to a low-flow state, while the pre-control command in the inconsistent pre-control scheme with the larger time node controls the water control node to switch its operating state to a high-flow state, then it means that the operating state of the gate valve 100 corresponding to that control water segment needs to be switched from a low-flow state to a high-flow state. If there are too many impurities in the upstream water pipe corresponding to the gate valve 100 of the control water segment, during the process of switching the operating state from a low-flow state to a high-flow state, the impurities accumulated near the gate plate in the low-flow state may wear down the gate plate, reducing the service life of the gate valve 100. The control scheme obtained based on the analysis scheme and analysis node can...

[0111] In one possible implementation, please refer to Figure 5 In step S3322, a control scheme is obtained based on the analysis scheme and analysis nodes, including:

[0112] S33221, the sampling time is obtained by subtracting the preset time from the analysis node.

[0113] It's understandable that the preset time could be 5 minutes, 10 minutes, etc., but it's not limited to these. Subtracting the preset time from the analysis node to obtain the sampling time can provide a basis for subsequent steps.

[0114] For example, assuming the analysis node is 7:30 and the preset time is 10 minutes, then the sampling time = 7:30 - 10 = 7:20.

[0115] S33222, Obtain a water quality report; wherein, the water quality report reflects whether the water quality in the upstream connecting pipeline corresponding to the water control node corresponding to the analysis plan is qualified at the sampling time.

[0116] It is understood that water quality reports can be obtained through data transmitted by impurity detection devices 50 (pipeline turbidity sensors, laser particle counters, etc.) pre-installed in various connecting pipes, or by receiving data transmitted by users, but are not limited to these methods. Obtaining water quality reports provides a basis for subsequent steps.

[0117] S33223, if the water quality report indicates that the water quality is unqualified, the control plan is obtained by confirming the sampling time and the pre-control instructions in the analysis plan as control instructions; if the water quality report indicates that the water quality is qualified, the control plan is obtained by confirming the analysis node and the pre-control instructions in the analysis plan as control instructions; wherein, the upstream connecting pipe is the connecting pipe that is connected to the water control node and is located upstream of the water control node.

[0118] It is understandable that if the water quality report shows that the water quality is not up to standard, it means that there are too many impurities in the upstream connecting pipe. It is necessary to change the working state of the gate valve 100 corresponding to the water control node in advance to avoid the impurities accumulated at the gate plate due to the sudden increase in flow, which would wear down the gate plate and reduce the service life of the gate valve 100.

[0119] Optionally, if the water quality report indicates that the water quality is substandard, the target opening degree minus the current opening degree is divided by a preset time to obtain the opening rate increase. This yields a control scheme where the gate valve 100 corresponding to the water control node increases its opening at the specified rate until it equals the target opening degree at the time corresponding to the analysis node. Here, the target opening degree reflects the required opening degree of the gate valve 100 corresponding to the water control node, and the current opening degree reflects the opening degree of the gate valve 100 corresponding to the water control node before the control scheme is executed.

[0120] For example, assuming the analysis node is 6:50, the target opening is 80%, the current opening is 40%, and the preset time is 10 minutes, then the opening rate increase = (80% - 40%)^10 = 4% / minute. Therefore, the gate valve 100 corresponding to the control water node will increase its opening at a rate of 4% per minute from 6:50 until the opening reaches 80%.

[0121] S3323, if the pre-control instructions in two adjacent pre-control schemes are consistent, or the pre-control instructions in two adjacent pre-control schemes are inconsistent, and the pre-control instruction in the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to high flow state, and the pre-control instruction in the pre-control scheme with the larger time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to low flow state, then the time node and pre-control instruction in the pre-control scheme with the smaller time node in the two adjacent pre-control schemes are confirmed as the control instructions to obtain the control scheme.

[0122] It is understandable that if the pre-control commands in two adjacent pre-control schemes are consistent, it means that the working state of gate valve 100 remains unchanged. If the pre-control commands in two adjacent pre-control schemes are inconsistent, and the pre-control command in the pre-control scheme with the smaller time node controls the water control node to switch its working state to a high flow state, and the pre-control command in the pre-control scheme with the larger time node controls the water control node to switch its working state to a low flow state, then it means that the working state of gate valve 100 needs to be switched from a high flow state to a low flow state (reducing the opening of gate valve 100).

[0123] For example, 23:00 on the same day is earlier than 0:00 on the next day.

[0124] S333 confirms all control schemes as control information.

[0125] It is understandable that confirming all control schemes as control information can establish a direct link between demand and control, achieve supply and demand matching optimization, and improve the problem of unreasonable water supply caused by fluctuations in water demand of water users in the water supply network, resulting in insufficient water supply or idle and wasted water resources.

[0126] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0127] This application embodiment also provides a gate valve 100, which includes: a valve body 10, a valve plate 20, a drive device 30, a flow acquisition device 40, an impurity detection device 50, and a control terminal. The control terminal is communicatively connected to the drive device 30, the flow acquisition device 40, and the impurity detection device 50, respectively. The control terminal includes: at least one processor, at least one memory, and a computer program stored in the at least one memory and executable on the at least one processor. When the processor executes the computer program, it causes the gate valve 100 to perform the steps in any of the above-described cell filtration method embodiments.

[0128] For example, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete this application. The one or more modules / units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the control terminal.

[0129] The control terminal can be a programmable logic controller (PLC), an industrial control computer (IPC), a microcontroller, a desktop computer, a laptop, a handheld computer, or a cloud server, etc. The control terminal may include, but is not limited to, a processor and a memory. Those skilled in the art will understand that the above embodiments are merely examples of the gate valve 100 and do not constitute a limitation on the gate valve 100. It may include more or fewer components, or combine certain components, or different components, such as input / output devices, network access devices, buses, etc.

[0130] The processor can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0131] In some embodiments, the memory may be an internal storage unit of the control terminal, such as a hard disk or RAM. In other embodiments, the memory may be an external storage device of the control terminal, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD), flash card, etc. Furthermore, the memory may include both internal and external storage units of the control terminal. The memory is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory can also be used to temporarily store data that has been output or will be output.

[0132] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0133] This application provides a computer program product that, when run on a gate valve 100, causes the gate valve 100 to perform the steps described in any of the above method embodiments.

[0134] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to the gate valve 100, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0135] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0136] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0137] In the embodiments provided in this application, it should be understood that the disclosed gate valve control method and gate valve 100 can be implemented in other ways. For example, the gate valve control method and gate valve 100 embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0138] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0139] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A gate valve control method, characterized in that, Applied to gate valves, the gate valves comprising: The valve body has a conveying channel; A valve plate is partially located within the conveying channel and is movably mounted on the valve body; A drive device is mounted on the valve body, and the power output end of the drive device is connected to the valve plate; A flow acquisition device is located within the conveying channel and mounted on the valve body; and An impurity detection device is located within the conveying channel and near the input end of the conveying channel, and is mounted on the valve body; The driving device is used to drive the valve plate to cut off or not cut off the conveying channel; the flow acquisition device is used to acquire the flow rate in the conveying channel; and the impurity detection device is used to detect impurities at the input end of the conveying channel. The gate valve control method includes: Obtain a water distribution network; wherein the water distribution network includes multiple control nodes, at least one water user node, at least one water supply node, and multiple connecting pipes, the water distribution network reflects the water supply system in a region, the control nodes reflect the gate valves in the water supply system, the water user node reflects the water user end in the water supply system, the water supply node reflects the water supply end in the water supply system, and the two ends of the connecting pipes are respectively connected to one of the water user node, the water supply node, and the connecting pipe; Water usage monitoring information is obtained based on the water distribution network; wherein, the water usage monitoring information includes at least one water usage information corresponding to the water usage node, and the water usage information includes at least one high water usage period and at least one low water usage period; Control information is obtained based on the water usage monitoring information and the water distribution network; wherein, the control information includes at least one control scheme, the control scheme includes a time node and a control command, and the control command is used to control the gate valve corresponding to the control node to change its working state at the time reflected by the time node; The control information obtained based on the water use monitoring information and the water distribution network includes: Water control node information is obtained based on the water distribution network; wherein, the water control node information includes at least one control node that is marked as a water control node and corresponds to at least one of the water-using nodes; An operation table is obtained based on the water control node information and the water usage monitoring information; wherein, the operation table includes an operation time axis and the working status of each water control node at each time node on the operation time axis; wherein, the working status includes a high flow state and a low flow state; The control information is obtained based on the operation table and the water distribution network; The control information obtained based on the operation table and the water distribution network includes: Based on the operation table, multiple pre-control schemes are obtained, each corresponding to a water control node. The pre-control scheme includes a time node and a pre-control instruction corresponding to the time node. The pre-control instruction is used to control the gate valve corresponding to the water control node to change its working state. Multiple control schemes are derived based on the aforementioned pre-control schemes and the water distribution network; All of the aforementioned control schemes are confirmed as the control information; The multiple control schemes derived based on the pre-control schemes and the water distribution network include: The pre-control schemes are classified according to water control nodes to obtain multiple analysis information corresponding to each water control node; wherein, the analysis information includes multiple pre-control schemes sorted by time node from smallest to largest; Each piece of analytical information is analyzed to determine whether the pre-control instructions in two adjacent pre-control schemes are consistent. If the pre-control instructions in two adjacent pre-control schemes are inconsistent, and the pre-control instruction in the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to the low flow state, and the pre-control instruction in the pre-control scheme with the larger time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to the high flow state, then the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is identified as the analytical scheme, and the control scheme is obtained based on the analytical scheme and the analytical node after the time node in the analytical scheme is identified as the analytical node. If the pre-control instructions in two adjacent pre-control schemes are consistent, or if the pre-control instructions in two adjacent pre-control schemes are inconsistent, and the pre-control instruction in the pre-control scheme with the smaller time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to the high flow state, and the pre-control instruction in the pre-control scheme with the larger time node in the two inconsistent pre-control schemes is used to control the water control node to switch its working state to the low flow state, then the time node and the pre-control instruction in the pre-control scheme with the smaller time node in the two adjacent pre-control schemes are confirmed as the control instruction to obtain the control scheme; The process of obtaining the control scheme based on the analysis scheme and the analysis node includes: The sampling time is obtained by subtracting the preset time from the analysis node. A water quality report is obtained through an impurity detection device; wherein, the water quality report is information transmitted in real time by the impurity detection device reflecting whether the water quality in the upstream connecting pipeline corresponding to the water control node corresponding to the analysis scheme is qualified at the sampling time; If the water quality report indicates that the water quality is unqualified, the control scheme is obtained by confirming the sampling time and the pre-control instruction in the analysis scheme as the control instruction; if the water quality report indicates that the water quality is qualified, the control scheme is obtained by confirming the analysis node and the pre-control instruction in the analysis scheme as the control instruction; wherein, the upstream connecting pipe is the connecting pipe connected to the water control node and located upstream of the water control node.

2. The gate valve control method as described in claim 1, characterized in that, The water use monitoring information obtained based on the water distribution network includes: Acquire the flow data transmitted by each of the water-using nodes; wherein, the flow data is the data transmitted in real time by the flow acquisition device, reflecting the flow of the water-using nodes at various time points throughout the day; Each of the flow data points is analyzed separately. Time points in the flow data points where the flow rate is greater than or equal to the preset flow rate are identified as high water flow points, and time points in the flow data points where the flow rate is less than the preset flow rate are identified as low water flow points. The time periods formed by each adjacent high water volume node are identified as the high water consumption time periods, the time periods formed by each adjacent low water volume node are identified as the low water consumption time periods, and after identifying each high water consumption time period and each low water consumption time period as the water consumption information, all the water consumption information is identified as the water consumption monitoring information.

3. The gate valve control method as described in claim 1, characterized in that, The process of obtaining water control node information based on the water distribution network includes: At least one water supply line is obtained based on the water distribution network; wherein, the water supply line includes at least one water supply node, a water consumption node and at least one connecting pipe, the water supply node is the water supply starting point of the water supply line, the water consumption node is the water supply ending point of the water supply line, each adjacent connecting pipe in the water supply line is connected, and the water supply line reflects that water can flow from the water supply starting point through at least one connecting pipe to the water supply ending point; After marking the control node closest to the water consumption node along the connecting pipe on each water supply line as the water control node, all the water control nodes are confirmed as the water control node information.

4. The gate valve control method as described in claim 1, characterized in that, The operation table obtained based on the water control node information and the water usage monitoring information includes: Each of the high water consumption time periods and each of the low water consumption time periods in each of the water consumption information is mapped onto the operation time axis; the operation time axis reflects each moment within a day; The working status of the water control node corresponding to the water consumption node in each of the high water consumption periods on the operation time axis is confirmed as the high flow state; the working status of the water control node corresponding to the time node in each of the low water consumption periods on the operation time axis is confirmed as the low flow state. Once all the high water consumption time periods and low water consumption time periods in the water consumption information are mapped onto the operation time axis, the operation time axis and the working status of each water control node at each time node on the operation time axis are confirmed as the operation table.

5. The gate valve control method as described in claim 1, characterized in that, The process of obtaining multiple pre-control schemes based on the operation table, each corresponding to a specific water control node, includes: Each water control node corresponding to each time node in the operation table is analyzed. If a water control node simultaneously exhibits both a high flow rate state and a low flow rate state at the same time node, then a pre-control instruction is obtained indicating that the water control node exhibiting both a high flow rate state and a low flow rate state at the same time node will switch its working state to the high flow rate state at the time reflected by the time node. The time node and the pre-control instruction are then confirmed as the pre-control scheme. If the working state of the water control node at the time node is only the high flow state, then after receiving the pre-control instruction that instructs the water control node to switch its working state to the high flow state at the time reflected by the time node, the time node and the pre-control instruction are confirmed as the pre-control scheme. If the working state of the water control node at the time node is only the low flow state, then after receiving the pre-control instruction instructing the water control node to switch its working state to the low flow state at the time reflected by the time node, the time node and the pre-control instruction are confirmed as the pre-control scheme.

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