Rotation control method and system for centralized filtration of cutting fluid

Abstract

The invention discloses a rotary control method and a rotary control system for centralized filtration of cutting fluid, which are applied to a centralized filtration system for cutting fluid, the centralized filtration system for cutting fluid comprises a plurality of filtration tank groups, and each filtration tank group corresponds to a filtration pump and a switch valve; comprising the following steps: determining the number N of filtering tank groups needing to be opened according to production requirements; sorting the filter pumps according to the accumulated running time; selecting the first S filter pumps with the shortest accumulated operation time from the current sequence, wherein the S filter pumps correspondingly control N filter tank groups; the virtual matching relation of the S filter pumps is analyzed, and a start-stop instruction set is generated; and controlling the corresponding filter pump and switch valve based on the start-stop instruction set.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of centralized filtration, and particularly relates to a rotating control method and system for centralized filtration of cutting fluid. BACKGROUND

[0002] A centralized filtration system is usually composed of multiple parallel filtration units, and its core function is to continuously provide stable and high-purity working fluid for precision manufacturing equipment (such as cutting and cleaning machines). In the operation of the centralized filtration system, there are two states: full load and partial load. When the system is in the partial load state, the workers manually start a certain number of filtration units according to the production demand of the day based on experience or randomly. This control method has significant drawbacks, including: it can easily cause a serious imbalance in the utilization rate of each filtration unit: some filtration units are frequently used and bear an excessive load; while other filtration units are idle for a long time.

[0003] The internal components (such as filter cartridges and pumps) of the frequently used filtration units are accelerated in wear and tear due to continuous high-load operation, significantly shortening their service life; the filtration state (such as flux, precision, and pressure difference) of the overused filtration units gradually deteriorates with wear and tear, reducing their processing capacity. SUMMARY

[0004] The application aims to solve the drawbacks of the current control method, and provides a rotating control method and system for centralized filtration of cutting fluid.

[0005] Technical solution: In a first aspect, the application provides a rotating control method for centralized filtration of cutting fluid, which is applied to a centralized filtration system of cutting fluid. The centralized filtration system of cutting fluid includes a plurality of filtration tank groups, each filtration tank group corresponding to a filtration pump and a switch valve; and the method includes the following steps: determining the number N of filtration tank groups to be started from the production demand; sorting the filtration pumps according to the cumulative running time; selecting the first S filtration pumps with the shortest cumulative running time from the current sorting, the S filtration pumps corresponding to the N filtration tank groups; analyzing the virtual matching relationship of the S filtration pumps to generate a start-stop instruction set; controlling the corresponding filtration pumps and switch valves based on the start-stop instruction set.

[0006] Further, the virtual matching relationship includes the mapping relationship between the filtration tank groups and the filtration pumps and switch valves.

[0007] Further, when the production demand includes filtration pumps to be disabled and the number N of filtration tank groups to be started, the filtration pumps to be disabled are excluded, the remaining available filtration pumps are sorted according to the cumulative running time, and the first S filtration pumps with the shortest cumulative running time are selected from the current sorting.

[0008] Further, after the step of controlling the corresponding filter pump and switch valve based on the start-stop instruction set, the method further comprises: monitoring the start-stop state of each switch valve and filter pump in real time, and stopping the corresponding filter pump if there is a switch valve or filter pump that fails to start.

[0009] Further, when the number of filter tank groups to be started changes from N to N ， , sorting the filter pumps according to the current cumulative running time, selecting the first S ， filter pumps with the shortest cumulative running time from the current sorting, the S ， filter pumps corresponding to the N ， filter tank groups, analyzing the virtual matching relationship of the S ， filter pumps, and generating a switching instruction set; and controlling the corresponding filter pump and switch valve based on the switching instruction set.

[0010] In a second aspect, the application provides a rotary control system for centralized filtration of cutting fluid, which is applied to a centralized filtration system of cutting fluid, the centralized filtration system of cutting fluid comprising a plurality of filter tank groups, each filter tank group corresponding to a filter pump and a switch valve; and the rotary control system comprising: a scheduling decision module configured to sort the filter pumps according to the cumulative running time, select the first S filter pumps with the shortest cumulative running time from the current sorting, analyze the virtual matching relationship of the S filter pumps, and generate a start-stop instruction set; wherein the S filter pumps correspond to the N filter tank groups that meet the current production demand; an execution control module configured to control the corresponding filter pump and switch valve based on the start-stop instruction set.

[0011] Further, the virtual matching relationship comprises a mapping relationship between the filter tank group and the filter pump and the switch valve.

[0012] Further, when the production demand includes a filter pump to be disabled and a number N of filter tank groups to be started, the scheduling decision module is further configured to: after excluding the filter pump to be disabled, sorting the remaining available filter pumps according to the cumulative running time, and selecting the first S filter pumps with the shortest cumulative running time from the current sorting.

[0013] Further, it further comprises a state monitoring module. The state monitoring module is configured to monitor the start-stop state of each switch valve and filter pump in real time, and stop the corresponding filter pump if there is a switch valve or filter pump that fails to start.

[0014] Further, when the number of filter tank groups to be started changes from N to N ， , the scheduling decision module is further configured to: sort the filter pumps according to the current cumulative running time, select the first S ，the filter pump with the shortest cumulative running time, the S ， the filter pump corresponding to the matching N ， the filter tank group; analyze S ， the virtual matching relationship of the filter pump, and generate a start-stop instruction set.

[0015] Advantages: Compared with the prior art, the present application has the following advantages: (1) The present application is based on a length forced rotation strategy, which ensures equal use of units and eliminates overwork and idle problems; the present application monitors the cumulative running time of each filter pump, and when started, opens the pump with the shortest cumulative running time and the associated unit in need, and opens the exclusive on-off valve in conjunction; the unselected pump and valve are closed and silent. (2) The present application virtually configures the pump and the filter tank group: no exclusive pump and independent pipeline are needed; when the pump is started, the liquid inlet valve of the virtually corresponding tank group is opened in conjunction to form a passage, eliminating the traditional hard connection pipeline, reducing the pipeline and joint, and reducing the installation and maintenance cost.

[0016] It should be understood that the contents described in this part are not intended to identify the key or important features of the embodiments of the present application, nor are they used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A timing flow chart of a cutting fluid centralized filtration rotation control method provided for the third embodiment of the present application; Figure 2 A physical layer schematic diagram in a cutting fluid centralized filtration rotation control system provided for the third embodiment of the present application; Figure 3 A schematic diagram of three filter pumps involved in a cutting fluid centralized filtration rotation control method provided for the third embodiment of the present application. DETAILED DESCRIPTION

[0019] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should belong to the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not necessarily have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product, or device.

[0021] Embodiment one: the rotary control method for cutting fluid centralized filtration provided by the embodiment of the present application is applied to a cutting fluid centralized filtration system, the cutting fluid centralized filtration system includes a plurality of filter tank groups, each filter tank group corresponds to a filter pump and a switch valve; specifically including: determining the number N of filter tank groups to be opened from production requirements; sorting the filter pumps according to the cumulative running time; selecting the first S filter pumps with the shortest cumulative running time from the current sorting, the S filter pumps correspond to the N filter tank groups; one filter tank group can be controlled by one or more filter pumps, analyzing the virtual matching relationship of the S filter pumps, and generating a start-stop instruction set.

[0022] controlling the corresponding filter pump and switch valve based on the start-stop instruction set.

[0023] The embodiment of the present application monitors the cumulative running time of each filter pump, when starting, the pump with the shortest cumulative running time and the associated unit are preferentially opened on demand, and the dedicated switch valve is opened in linkage; the unselected pump and valve are closed and silent.

[0024] Embodiment two: The technical scheme of the embodiment of the present application is further optimized on the basis of the above-mentioned optional technical schemes, the virtual matching relationship includes the mapping relationship of the filter tank group and the filter pump and the on-off valve, and when the production demand includes the number N of filter tanks groups that need to be opened and the filter pumps that need to be disabled, after excluding the filter pumps that need to be disabled, the remaining available filter pumps are sorted according to the cumulative running time, and the first S filter pumps with the shortest cumulative running time are selected from the current sorting.

[0025] In actual production, if the performance of a certain high-load filter unit has seriously decreased and the staff does not realize it, the filter unit will still be put into operation, and the filter unit will not be able to provide the expected filtering capacity. This directly leads to insufficient total liquid supply or unstable pressure of the whole centralized filtration system. Ultimately, the machine relying on stable liquid supply will appear workpiece scrap due to abnormal liquid supply, causing direct production loss and quality risk. Therefore, in the embodiment of the present application, after the step of controlling the corresponding filter pump and on-off valve based on the start-stop instruction set, the following step is further included: real-time detection of the start-stop state of each on-off valve and filter pump, and if there is an on-off valve or filter pump that fails to open, the corresponding filter pump is stopped.

[0026] In the embodiment of the present application, when the number of filter tank groups that need to be opened changes from N to N ， , the filter pumps are sorted according to the current cumulative running time, and the first S ， filter pumps with the shortest cumulative running time are selected from the current sorting, the S ， filter pumps correspond to matching N ， filter tank groups, the virtual matching relationship of the S ， filter pumps is analyzed, and a switching instruction set is generated; and the corresponding filter pump and on-off valve are controlled based on the switching instruction set.

[0027] Embodiment three: The embodiment of the present application provides a rotary control system for centralized filtration of cutting fluid, which is applied to a centralized filtration system of cutting fluid, and the centralized filtration system of cutting fluid includes a plurality of filter tank groups, each filter tank group corresponding to a filter pump and an on-off valve; and the rotary control system includes: The scheduling decision module is configured to sort the filter pumps according to the cumulative running time, select the first S filter pumps with the shortest cumulative running time from the current sorting, analyze the virtual matching relationship of the S filter pumps, and generate a start-stop instruction set; wherein the S filter pumps correspond to matching N filter tank groups that meet the current production demand.

[0028] The execution control module is configured to control the corresponding filter pump and on-off valve based on the start-stop instruction set.

[0029] In the embodiment of the present application, by monitoring the cumulative running time of each filter pump, when starting, the pump and the associated unit with the shortest cumulative running time are preferentially opened according to the demand, and the exclusive on-off valve is opened in linkage; the unselected pump and valve are closed and silent.

[0030] Embodiment four: The technical solution of the embodiment of the application is further optimized on the basis of the above-mentioned optional technical solutions, the virtual matching relationship includes the mapping relationship of the filter tank group and the filter pump and the on-off valve. When the production demand includes the number N of filter tanks that need to be opened and the number N of filter pumps that need to be disabled, the scheduling decision module is further configured to sort the remaining available filter pumps according to the cumulative running time after excluding the filter pumps that need to be disabled, and select the first S filter pumps with the shortest cumulative running time from the current sorting.

[0031] In actual production, if the performance of a certain high-load filter unit has seriously declined, but the staff does not realize it and still puts it into operation, the filter unit will not be able to provide the expected filtering capacity. This directly leads to insufficient total liquid supply or unstable pressure of the whole centralized filtration system. Ultimately, the machine that relies on stable liquid supply will appear workpiece scrap due to abnormal liquid supply, causing direct production loss and quality risk. Therefore, in the embodiment of the application, a state monitoring module is further included; the state monitoring module is configured to monitor the start-stop state of each on-off valve and filter pump in real time, and if there is an on-off valve or filter pump that fails to start, the corresponding filter pump is stopped.

[0032] In the embodiment of the application, when the number of filter tank groups that need to be opened changes from N to N ， , the scheduling decision module is configured to sort the filter pumps according to the current cumulative running time, and select the first S ， filter pumps with the shortest cumulative running time from the current sorting. The S ， filter pumps correspond to the N ， filter tank groups, the virtual matching relationship of the S ， filter pumps is analyzed, and a switching instruction set is generated; based on the switching instruction set, the corresponding filter pumps and on-off valves are controlled.

[0033] Embodiment five: The embodiment of the application provides a rotary control system for centralized filtration of cutting fluid, which comprises a physical layer and a control layer; wherein, as shown in the figure, Figure 2 the physical layer comprises a plurality of groups of parallel filter unit clusters and a dirty liquid tank 1; each group of filter unit clusters at least includes one filter pump 2, a dirty liquid conveying pipe, at least one on-off valve 5 and a filter tank group 6; the dirty liquid conveying pipe includes a dirty liquid main pipe 3 and a dirty liquid branch pipe 4. The dirty liquid tank 1 is connected with the filter pump 2, and the filter pump 2 is connected with each dirty liquid branch pipe 4 through the dirty liquid main pipe 3, and each dirty liquid branch pipe 4 is provided with an on-off valve 5 at the connection position with the dirty liquid main pipe 3, and the filter tank group 6 is composed of a plurality of filter tanks, and each filter tank is connected with a dirty liquid branch pipe 4. The physical layer further comprises an electric control element, which receives instructions from the control layer and directly controls the power on-off of the filter pump and the on-off valve.

[0034] The control layer of the embodiment comprises a data storage module, a real-time timing module, a scheduling decision module, a human-computer interaction module and an execution control module. The data storage module is used to store the cumulative running time of all filter pumps 2 and the mapping relationship data of the filter pumps 2, the switch valves 5 and the filter tank groups 6. The data storage module used in the embodiment can be but is not limited to a non-volatile memory, which can support automatic loading of historical data after power-on. The real-time timing module is used to collect the running time of the filter pumps 2 in real time, accumulate the timing and update to the data storage module. The scheduling decision module is used to obtain the cumulative running time of the filter pumps 2, and sort all filter pumps 2 in ascending or descending order according to the cumulative running time of the filter pumps 2. According to the number N of filter pumps to be started manually input, the first N filter pumps with low running time are automatically selected, and the selection information is sent to the execution control module. The human-computer interaction module is used to display the cumulative running time of each filter pump, receive the filter pump starting number instruction manually input, and transmit the instruction to the scheduling decision module. The execution control module is used to obtain the scheduling result (i.e. the filter pump identity information to be started) output by the scheduling decision module, send the corresponding pump / valve start-stop instruction to the electric control element according to the mapping relationship of the filter pumps 2, the switch valves 5 and the filter tank groups 6, and automatically open the virtual matching switch valve when starting the pump. At the same time, the unselected pump and valve are closed.

[0035] Correspondingly, referring to Figure 1 , the rotation control method comprises: System startup initialization: after the system is powered on, the scheduling decision module can retrieve the cumulative running time of each filter pump and the virtual matching relationship table from the data storage module. As shown in Figure 3 , for example: Filter pump P1: cumulative running time 150 hours, binding switch valve V1 and filter tank group G1 Filter pump P2: cumulative running time 80 hours, binding switch valve V2 and filter tank group G2 Filter pump P3: cumulative running time 200 hours, binding switch valve V3 and filter tank group G3 After the scheduling decision module obtains these data, it automatically sorts the cumulative running time from short to long: filter pump P2 (80h) → P1 (150h) → P3 (200h), and sends the sorting result to the human-computer interaction module.

[0036] The interactive interface (such as a touch screen) of the human-computer interaction module displays the filter pump running time ranking list. The display content can be a separate filter pump ID and a corresponding cumulative running time ranking list, or a time ranking list with filter pump-switch valve-filter tank group binding relationship. At this time, the operator can clearly see the running time ranking list of each pump on the touch screen.

[0037]

[0038] Manual setting of working mode: the operator sets the running parameters through the man-machine interaction interface of the man-machine interaction module according to the production demand of the day.

[0039] Scenario - start by quantity: the operator inputs the number of pumps to be started (such as N = 2) on the touch screen. The man-machine interaction module transmits the number of pump start to the data storage module, the data storage module sends the pump running instruction and mapping relationship to the scheduling decision module, the scheduling decision module selects the first two filters with the shortest cumulative time according to the current sorting: P2 (80h) and P1 (150h); at the same time, analyze the virtual matching relationship: P2→V2 / G2, P1→V1 / G1; finally generate the device start-stop instruction set and send it to the execution control module.

[0040] At this time, the touch screen displays the confirmation information: "selected to start: P2 (80h) + V2 / G2, P1 (150h) + V1 / G1" Device linkage execution: the execution control module converts the instructions into commands executable by the electrical control elements. Send start-stop instruction package to electrical control elements (PLC), for example: Start the device: filter pump P2, filter pump P1; Open the valve: on-off valve V2, on-off valve V1; Close the device: filter pump P3, on-off valve V3.

[0041] Physical layer response, the electrical control element starts the filter pump P2, the filter pump P2 starts to run, extracts dirty liquid, synchronously opens the binding on-off valve V2, forms a complete path: dirty liquid tank→filter pump P2→dirty liquid main pipe→dirty liquid branch pipe (on-off valve V2)→filter tank group G2; at the same time, start the filter pump P1, the filter pump P1 starts to run, synchronously open the binding on-off valve V1, form an independent path: dirty liquid tank→filter pump P1→dirty liquid main pipe→dirty liquid branch pipe (on-off valve V1)→filter tank group G1; filter pump P3 and on-off valve V3 remain closed.

[0042] Safety interlocking mechanism: if the on-off valve V2 fails to open (no feedback from the sensor), the system automatically stops the filter pump P2 within 500ms, and the touch screen displays a red alarm: "P2 path abnormal: on-off valve V2 does not respond!" Runtime detection and update.

[0043] Dynamic monitoring is continuously performed during system operation: Real-time timing module executes every second: detects the state of the running filter pump (P2 and P1); accumulates 0.0003 hours (1 second) for the cumulative running time of each running filter pump; update to data storage module: P2 (80→80.0003→80.0006h...), P1 (150→150.0003h...) The human-computer interaction module can also obtain updated accumulated running time of the filter pump from the data storage module in real time, and dynamically display the accumulated running time on the human-computer interaction interface. For example, the time length is updated every 5 seconds:

[0044] The operator can adjust the running configuration at any time: (1) Adjust the number of starts: when the production demand changes (for example, from 2 to 1); the operator inputs a new number N = 1; the scheduling decision module reorders according to the latest time length (at this time, P2 = 85h, P1 = 155h), selects the filter pump with the shortest time length: P2 (85h), and generates a switching instruction: turn off P1 / V1, and keep P2 / V2 running.

[0045] (2) Emergency stop: when the emergency stop button is pressed, the execution control module sends the filter pump stop + switch valve closing instruction at the same time, the real-time timing module records the accurate stop time, and the data storage module saves the final accumulated time length value.

[0046] System shutdown process When the production is over, the operator clicks the "system stop" button, and the execution control module sequentially sends: filter pump stop instruction (P2 first, then P1), switch valve closing instruction (V2 and V1 are closed synchronously). The real-time timing module records the final accumulated running time length value of each filter pump (P2 accumulates 92.75 hours; P1: accumulates 162.80 hours), and the data storage module writes the updated data into the non-volatile memory. The touch screen displays the shutdown report:

[0047] Example six: Now taking the rotating control with a manually disabled pump as an example, including: starting by number (including manually disabled pump): the operator first manually sets P1 to be in a disabled state (because it needs to be stopped for maintenance), and then inputs the number of pumps to be started (for example, N = 2) on the touch screen. The scheduling decision module excludes the disabled P1, and sorts the remaining available pumps (P2: 80h, P3: 200h) according to the accumulated time length, and selects the first N (i.e., the first 2) pumps with the shortest time length: P2 and P3; at the same time, it analyzes the virtual matching relationship: P2→V2 / G2, P3→V3 / G3; finally, it generates a device start-stop instruction set for starting P2 (associated with V2, G2) and P3 (associated with V3, G3), and sends it to the execution control module for execution, and ensures that the disabled P1 remains stopped.

[0048] The specific control steps include: Mapping relationships between filter tank groups, switch valves of the filter tank groups, and filter pumps are established and stored; The accumulated running time length of each filter pump is collected and stored in real time; Sort and display the filter pumps according to the cumulative running time; Calculate the number of filter tank groups required according to the current production demand, and determine the number of filter pumps accordingly; according to the number of filter pumps to be started manually input and the sorting result, automatically select the specified number of filter pumps with the shortest running time; Start the selected filter pump and the corresponding valve, and extract the dirty liquid to the corresponding filter tank group; at the same time, keep the unselected filter pump and valve in the closed state.

[0049] Running time detection: the real-time timing module accumulates the time of the running pump every second and updates the storage module; the human-machine interface dynamically refreshes the cumulative time of each pump (distinguishing between running / paused states) Allow the operator to forcibly switch the pump group: re-input the start number → the scheduling module switches the equipment after sorting according to the latest time.

Claims

1. A rotating control method for centralized filtration of cutting fluid, applied to a centralized filtration system for cutting fluid, the centralized filtration system comprising several filter tank groups, each group of filter tank groups corresponding to a filter pump and a switching valve; characterized in that: include: Determine the number N of filter tanks that need to be activated based on production requirements; Sort the filter pumps according to their cumulative runtime; select the S filter pumps with the shortest cumulative runtime from the current sort, and match the S filter pumps with N filter tank groups; parse the virtual matching relationship of the S filter pumps to generate a start / stop instruction set; Based on the start / stop instruction set, the corresponding filter pump and on / off valve are controlled.

2. The rotating control method for centralized filtration of cutting fluid according to claim 1, characterized in that: The virtual matching relationship includes the mapping relationship between the filter tank group and the filter pump and the switching valve.

3. The rotating control method for centralized filtration of cutting fluid according to claim 1, characterized in that: When production requirements include the number N of filter pumps that need to be disabled and the number of filter tanks that need to be turned on, after excluding the filter pumps that need to be disabled, the remaining available filter pumps are sorted according to their cumulative running time, and the S filter pumps with the shortest cumulative running time are selected from the current sort.

4. The rotating control method for centralized filtration of cutting fluid according to claim 1, characterized in that: Following the step of controlling the corresponding filter pump and switching valve based on the start / stop command set, the method further includes: The system monitors the start-up and stop status of each switching valve and filter pump in real time. If any switching valve or filter pump fails to start, the corresponding filter pump is stopped.

5. The rotating control method for centralized filtration of cutting fluid according to claim 1, characterized in that: When the number of filter tanks that need to be turned on changes from N to N ， At that time, sort the filter pumps according to their current cumulative runtime, and select the top S from the current sort. ， The filter pump with the shortest cumulative runtime, the S ， Each filter pump corresponds to N ， A filter tank assembly, analyzing S ， The virtual matching relationship of the filter pumps is used to generate a switching instruction set; based on the switching instruction set, the corresponding filter pumps and switching valves are controlled.

6. A rotating control system for centralized filtration of cutting fluid, applied to a centralized filtration system for cutting fluid, the centralized filtration system comprising a plurality of filter tank groups, each group of filter tank groups corresponding to a filter pump and a switching valve; characterized in that: include: The scheduling decision module is configured to sort the filter pumps according to their cumulative runtime, select the S filter pumps with the shortest cumulative runtime from the current sort, parse the virtual matching relationship of the S filter pumps, and generate a start / stop instruction set; wherein the S filter pumps correspond to N filter tank groups that meet the current production needs. The execution control module is configured to control the corresponding filter pump and on / off valve based on the start / stop instruction set.

7. The rotating control system for centralized filtration of cutting fluid according to claim 6, characterized in that: The virtual matching relationship includes the mapping relationship between the filter tank group and the filter pump and the switching valve.

8. The rotating control system for centralized filtration of cutting fluid according to claim 6, characterized in that: When the production demand includes the number N of filter pumps that need to be disabled and the number of filter tank groups that need to be turned on, the scheduling decision module is further configured to: after excluding the filter pumps that need to be disabled, sort the remaining available filter pumps according to their cumulative running time, and select the S filter pumps with the shortest cumulative running time from the current sort.

9. A rotating control system for centralized filtration of cutting fluid according to claim 5, characterized in that: Also includes: Status monitoring module; The status monitoring module is configured to monitor the start-up and stop status of each switching valve and filter pump in real time, and to stop the corresponding filter pump if there is a switching valve or filter pump that fails to start.

10. A rotating control system for centralized filtration of cutting fluid according to claim 5, characterized in that: When the number of filter tanks that need to be turned on changes from N to N ， At the same time, the scheduling decision module is also configured to: sort each filter pump according to its current cumulative running time, and select the top S from the current sort. ， The filter pump with the shortest cumulative runtime, the S ， Each filter pump corresponds to N ， One filter tank group; Analysis S ， The virtual matching relationship of the filter pump is used to generate a set of start and stop instructions.

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