Mechanical seal flushing device and control method

Abstract

The embodiment of the present specification provides a mechanical seal flushing device and a control method. The device comprises a flushing module, a cooling module, a monitoring device and a processor; the flushing module comprises a liquid inlet pipeline, a liquid outlet pipeline, a valve and a filter; the cooling module is mechanically connected with the liquid inlet pipeline and is used for cooling the flushing liquid in the liquid inlet pipeline; the monitoring device at least comprises a pressure monitoring component, a temperature monitoring component and a flow rate monitoring component; the monitoring device is used for obtaining monitoring data; the processor is in communication connection with the flushing module, the cooling module and the monitoring device; and the processor is used for: based on the monitoring data, controlling the flushing pressure of the flushing liquid in the flushing module and the cooling efficiency of the cooling module through a control instruction.

Description

Technical Field

[0001] This specification relates to the technical field of mechanical seal flushing equipment, and in particular to a mechanical seal flushing device and control method. Background Technology

[0002] Mechanical seals are devices used to seal the rotating shaft and the machine body, preventing fluid leakage and are widely used in pump components. Mechanical seals often accumulate particulate impurities, requiring flushing. Otherwise, crystal precipitation, particle and impurity sedimentation can cause the dynamic and static rings of the mechanical seal to lose their floating properties, leading to spring failure. More seriously, particles and impurities entering the friction pair can exacerbate wear and lead to rapid failure of the mechanical seal. Current technology includes internal and external flushing. For external flushing, parameters such as flushing fluid pressure and temperature need to be controlled. However, there may be a lag in feedback on flushing parameter adjustments, potentially causing unstable flushing pressure, resulting in flushing quality problems and reduced mechanical seal life.

[0003] Therefore, there is a need for a mechanical seal flushing device and control method that can accurately and timely control the flushing parameters of the mechanical seal. Summary of the Invention

[0004] This specification provides one or more embodiments of a mechanical seal flushing device, including a flushing module, a cooling module, a monitoring device, and a processor. The flushing module includes an inlet pipe, an outlet pipe, a valve, and a filter. The filter is respectively disposed on the inlet pipe and the outlet pipe. The inlet pipe and the outlet pipe are mechanically connected to the mechanical seal device. The inlet pipe is used to input flushing fluid into the mechanical seal device and flush the mechanical seal components within the mechanical seal device. The outlet pipe is used to discharge the flushing fluid from the mechanical seal device. The cooling module is mechanically connected to the inlet pipe and is used to cool the flushing fluid in the inlet pipe. The monitoring device includes at least a pressure monitoring component, a temperature monitoring component, and a flow rate monitoring component. The monitoring device is used to acquire monitoring data. The processor is communicatively connected to the flushing module, the cooling module, and the monitoring device. The processor is used to: based on the monitoring data, control the flushing pressure of the flushing fluid in the flushing module and the cooling efficiency of the cooling module through control commands.

[0005] In some embodiments, the mechanical seal flushing device further includes a pressurization module; the processor is configured to control the flushing pressure of the flushing fluid in the flushing module based on the pressurization module; controlling the flushing pressure of the flushing fluid in the flushing module includes: acquiring impurity data of the sealed medium in the mechanical seal device; and controlling the flushing pressure of the flushing fluid in the flushing module based on at least one of the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device.

[0006] In some embodiments, the temperature monitoring component is used to monitor the temperature of at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device to obtain at least one temperature monitoring data at at least one time point; the processor is used to control the cooling efficiency of the cooling module based on the at least one temperature monitoring data.

[0007] In some embodiments, the processor is further configured to: adjust the flushing pressure of the flushing fluid in the flushing module by means of an adjustment instruction based on the at least one temperature monitoring data.

[0008] This specification provides one or more embodiments of a control method for a mechanical seal flushing device. The method is processor-based and includes: acquiring monitoring data based on a monitoring device; and controlling the flushing pressure of the flushing fluid in the flushing module and the cooling efficiency of the cooling module based on the monitoring data via control commands. The flushing module is used to input flushing fluid into the mechanical seal device through an inlet pipe to flush the mechanical seal components within the device, and to discharge the flushing fluid from the mechanical seal device through an outlet pipe. The cooling module is used to cool the flushing fluid in the inlet pipe.

[0009] In some embodiments, the method further includes: controlling the flushing pressure of the flushing fluid in the flushing module based on the pressurization module; the control of the flushing pressure of the flushing fluid in the flushing module includes: acquiring impurity data of the sealed medium in the mechanical seal device; and controlling the flushing pressure of the flushing fluid in the flushing module based on at least one of the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device.

[0010] In some embodiments, the method further includes: monitoring the temperature of at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device based on the temperature monitoring component of the monitoring device, and obtaining at least one temperature monitoring data at at least one time point; and controlling the cooling efficiency of the cooling module based on the at least one temperature monitoring data.

[0011] In some embodiments, the method further includes: adjusting the flushing pressure of the flushing fluid in the flushing module by means of an adjustment command based on the at least one temperature monitoring data.

[0012] This specification provides a control system for a mechanical seal flushing device, comprising a processor for executing the control method described above, through one or more embodiments.

[0013] This specification provides one or more embodiments of a computer-readable storage medium that stores computer instructions. When a computer reads the computer instructions from the storage medium, the computer executes the control method described above. Attached Figure Description

[0014] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0015] Figure 1 This is a schematic diagram of a mechanical seal flushing device according to some embodiments of this specification;

[0016] Figure 2 This is an exemplary flowchart of a control method for a mechanical seal flushing device according to some embodiments of this specification;

[0017] Figure 3 This is a schematic diagram of an erosion model according to some embodiments of this specification. Detailed Implementation

[0018] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0019] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0020] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0021] Flowcharts are used in this specification to illustrate the operations performed by the system according to embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0022] Mechanical seals are devices used to seal between rotating shafts and machine bodies. They are commonly used in rotating fluid machinery such as pumps, compressors, and reaction vessels, as well as in gearboxes and ship stern shafts.

[0023] Particles and impurities often mix into the sealing medium within the sealed cavity, necessitating flushing. The purpose of flushing is to prevent impurity accumulation, prevent air pocket formation, maintain and improve lubrication, and, when the flushing fluid temperature is low, also provide cooling. Flushing includes internal flushing (using the sealed medium within the device) and external flushing (introducing flushing fluid). For external flushing, it is necessary to control parameters such as the flushing fluid pressure and temperature. There may be feedback lag issues, and unstable flushing pressure may occur, leading to flushing quality problems and reducing the lifespan of the mechanical seal.

[0024] In view of this, in some embodiments of this specification, it is desirable to provide a mechanical seal flushing device, including a flushing module, a cooling module, a monitoring device and a processor, which can issue control commands based on the data monitored by the monitoring device, and through the flushing module and the cooling module, more accurately control the flushing pressure of the flushing fluid and the cooling efficiency of the flushing fluid.

[0025] Figure 1 This is a schematic diagram of a mechanical seal flushing device according to some embodiments of this specification.

[0026] In some embodiments, such as Figure 1 As shown, the mechanical seal flushing device 100 may include a flushing module 110, a cooling module 120, a monitoring device 130, and a processor 150.

[0027] The flushing module 110 can be used to flush the mechanical seal components within a mechanical seal device. A mechanical seal component can refer to a device that prevents fluid leakage by having at least one pair of end faces perpendicular to the axis of rotation, which, under the action of fluid pressure and the elastic / magnetic force of the compensation mechanism, as well as the cooperation of auxiliary seals, remain in contact and slide relative to each other. The most common type of mechanical seal component is an end face seal, consisting of a stationary ring and a rotating ring. Both the stationary and rotating rings have good wear resistance. The rotating ring can move flexibly in the axial direction, automatically compensating for wear on the sealing surface and ensuring good contact with the stationary ring. The stationary ring has a floating property, acting as a buffer.

[0028] In some embodiments, the flushing module 110 can introduce flushing fluid to flush the mechanical seal device. The flushing fluid can be a relatively clean fluid that does not affect product quality after entering the medium. In some embodiments, the flushing module 110 may include pipes for introducing flushing fluid, valves for regulating the flow rate of flushing fluid, and other devices.

[0029] In some embodiments, the flushing module 110 may include an inlet pipe, an outlet pipe, a valve, and a filter.

[0030] The inlet pipe refers to the pipe that introduces the flushing fluid into the mechanical seal device. For example, the inlet pipe can be made of metal, plastic, or plastic-coated metal, or other materials, as long as they do not affect the flushing fluid or the medium.

[0031] In some embodiments, the inlet conduit can be mechanically connected to the mechanical seal. For example, the inlet conduit can be connected to the mechanical seal using a threaded connection, a clamp connection, or other feasible connection methods.

[0032] The discharge pipe refers to the pipe through which the flushing mixture is discharged from the mechanical seal device. For example, the discharge pipe can be made of metal, plastic, or plastic-coated metal. Other materials can also be used to avoid affecting the flushing fluid and the medium.

[0033] In some embodiments, the outlet conduit can be mechanically connected to the mechanical seal. For example, the outlet conduit can be connected to the mechanical seal using a threaded connection, a clamp connection, or other feasible connection methods.

[0034] Filters can be used to filter flushing fluid in inlet and outlet pipes. Examples include one or a combination of straight-through pipe filters, T-type pipe filters, and basket filters.

[0035] In some embodiments, filters may be configured on the inlet and outlet pipes respectively to filter the flushing fluid in the inlet and outlet pipes to prevent impurities in the flushing fluid from entering the mechanical seal device.

[0036] Valves can be used to control the flow direction, pressure, and velocity of liquids in pipelines, as well as the opening and closing of pipelines. For example, there are one or more combinations of gate valves, regulating valves, and safety valves.

[0037] In some embodiments, valves may be respectively configured on the inlet pipe and the outlet pipe for controlling the opening and closing of the inlet pipe and the outlet pipe, as well as controlling the flow rate of the flushing fluid in the inlet pipe and the outlet pipe.

[0038] In some embodiments, flushing fluid can be introduced into the mechanical seal device through an inlet pipe at a preset pressure to flush the mechanical seal. The flushed mixture can be discharged through an outlet pipe. The filter in the inlet pipe filters impurities from the flushing fluid, the filter in the outlet pipe filters impurities from the discharged mixture, and valves control the opening and closing of the pipes.

[0039] In some embodiments, the preset pressure can be a manually preset pressure based on the characteristics of the mechanical seal device itself, which may include the device's structure, material, service life, etc.

[0040] In some embodiments, the flushed mixture may include flushing fluid, impurities, and a sealing medium, wherein the sealing medium may be air, water, gasoline, etc., and the impurities may be particles, carbon deposits, silt, etc.

[0041] The cooling module 120 can be used to cool designated equipment. In some embodiments, the cooling module 120 can be used to cool the flushing fluid in the inlet pipe. The flushing is performed with cooled flushing fluid, which not only removes impurities but also cools the mechanical seal device. The cooling module 120 can be one or a combination of several types, including but not limited to tubular coolers, plate coolers, and air coolers.

[0042] In some embodiments, the cooling module 120 may be mechanically connected to the liquid inlet pipe. For example, the liquid inlet pipe may be connected to the cooling module by a threaded connection, a clamp connection, or other feasible connection methods.

[0043] In some embodiments, a plate cooler may be configured on the outside of the inlet pipe. The flushing fluid flows through the inlet pipe equipped with the plate cooler. After heat transfer between the flushing fluid and the cooling oil in the plate cooler, the temperature of the flushing fluid is reduced. Subsequently, the flushing fluid flows into the mechanical seal device through the inlet pipe.

[0044] The monitoring device 130 can refer to a device that monitors relevant operating parameters of the mechanical seal flushing device 100. In some embodiments, the monitoring device 130 can monitor pressure, flow rate, temperature, etc., to obtain corresponding monitoring data. The monitoring device 130 may include, but is not limited to, one or a combination of pressure gauges, pressure thermometers, and flow rate monitors.

[0045] In some embodiments, the monitoring device 130 may include a pressure monitoring component, a temperature monitoring component, and a flow monitoring component.

[0046] Pressure monitoring components can be used to monitor the pressure of flushing fluid. These components may include, but are not limited to, liquid pressure gauges, liquid pressure sensors, and liquid pressure transmitters.

[0047] In some embodiments, the pressure sensing element may be configured on the inlet pipe and / or valve, and may be configured in any other feasible location as needed.

[0048] Temperature sensing components can refer to components that monitor the temperature of flushing fluid or mechanical seals. Examples include bimetallic thermometers, pressure thermometers, and thermometer-pressure gauges.

[0049] In some embodiments, the temperature sensing component may be configured in the inlet pipe, outlet pipe, the location of the sealed medium, and the mechanical seal device, as well as in any other feasible location as needed.

[0050] In some embodiments, the temperature monitoring component can be used to monitor the temperature of at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device.

[0051] Flow velocity monitoring components can be used to monitor the flow rate of flushing fluid. Flow velocity monitoring components may include, but are not limited to, electromagnetic flow meters, ultrasonic flow meters, and throttling flow meters.

[0052] In some embodiments, the flow rate monitoring component may be configured on the inlet pipe and / or valve, and may be configured in any other feasible location as needed.

[0053] In some embodiments, the mechanical seal flushing device 100 further includes a pressurization module 140.

[0054] The booster module 140 can be used to control the flushing pressure of the flushing fluid in the flushing module. The booster module 140 may include, but is not limited to, a gas-liquid booster pump, an air booster pump, and a chlorine booster pump. In some embodiments, the flushing fluid needs to be pressurized (by the booster module 140) to a pressure greater than the operating pressure inside the mechanical seal device in order to enter the mechanical seal device and complete the flushing process for the mechanical seal device.

[0055] In some embodiments, the booster module 140 may be mechanically connected to the inlet pipe. For example, the inlet pipe may be connected to the booster module 140 by a threaded connection, a clamp connection, or other feasible connection methods.

[0056] In some embodiments, the inlet pipe may be equipped with a booster pump. The flushing fluid flows through the inlet pipe equipped with the booster pump, and the operating pressure of the flushing fluid increases after the booster pump pressurizes the flushing fluid, which then flows into the mechanical seal device through the inlet pipe.

[0057] Processor 150 can be used to process data related to mechanical seal flushing device 100 to achieve the functions described in one or more embodiments. Processor 150 may include one or more sub-processing devices (e.g., single-core processing devices or multi-core multi-core processing devices).

[0058] In some embodiments, the processor 150 may be communicatively connected to the flushing module 110, the cooling module 120, the monitoring device 130, and the pressurization module 140, respectively, for acquiring monitoring data and controlling flushing pressure and cooling efficiency.

[0059] In some embodiments, the processor 150 can be used to control the flushing pressure of the flushing fluid in the flushing module 110 and the cooling efficiency of the cooling module 120 based on monitoring data and control commands.

[0060] In some embodiments, the processor 150 can be used to control the flushing pressure of the flushing fluid in the flushing module 110 based on the pressurization module 140; wherein controlling the flushing pressure of the flushing fluid in the flushing module 110 may include: acquiring impurity data of the sealed medium in the mechanical seal device; and controlling the flushing pressure of the flushing fluid in the flushing module 110 based on at least one of the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device. Further details regarding the control of the flushing pressure can be found in the relevant description below and will not be repeated here.

[0061] In some embodiments, the processor 150 can be used to control the cooling efficiency of the cooling module 120 based on at least one temperature monitoring data at at least one time point acquired by the temperature monitoring component. Further details regarding the control of cooling efficiency can be found in the related description below and will not be repeated here.

[0062] In some embodiments, the processor 150 can be used to adjust the flushing pressure of the flushing fluid in the flushing module 110 based on at least one temperature monitoring data via adjustment instructions. Further details regarding adjusting the flushing pressure based on at least one temperature monitoring data can be found in the related description below and will not be repeated here.

[0063] It should be noted that the above description of the mechanical seal flushing device 100 and its modules is for convenience only and should not limit this specification to the scope of the illustrated embodiments. It is understood that those skilled in the art, after understanding the principle of the device, may arbitrarily combine the various modules or construct subsystems connected to other modules without departing from this principle. In some embodiments, Figure 1 The flushing module 110, cooling module 120, monitoring device 130, and pressurization module 140 disclosed herein can be different modules within a single system, or a single module can perform the functions of two or more of the aforementioned modules. For example, the modules can share a single storage module, or each module can have its own separate storage module. Such variations are all within the scope of protection of this specification.

[0064] Figure 2 This is an exemplary flowchart of a control method for a mechanical seal flushing device according to some embodiments of this specification. Figure 2 As shown, process 200 includes the following steps. In some embodiments, process 200 may be executed by processor 150.

[0065] Step 210: Acquire monitoring data based on the monitoring device.

[0066] Monitoring data can refer to relevant data obtained by monitoring the mechanical seal device and the mechanical seal flushing device 100 through the monitoring device 130. More information about the monitoring device 130 can be found here. Figure 1 The relevant description is provided below. In some embodiments, the monitoring data may include pressure monitoring data, temperature monitoring data, and flow rate monitoring data.

[0067] In some embodiments, the monitoring device 130 can monitor pressure, flow rate, temperature, etc., to obtain corresponding monitoring data, and the monitoring data obtained by the monitoring device 130 can be transmitted to the processor 150. For more information on how the monitoring device 130 acquires monitoring data, please refer to [link to relevant documentation]. Figure 1 And its related descriptions.

[0068] Step 220: Based on the monitoring data, control commands are used to control the flushing pressure of the flushing fluid in the flushing module and the cooling efficiency of the cooling module.

[0069] Flushing pressure refers to the pressure of the flushing fluid flowing within the flushing module. In some embodiments, the flushing fluid enters the mechanical seal from a dedicated inlet pipe. The flushing fluid needs to be higher than the operating pressure within the mechanical seal; otherwise, it may not be able to enter the mechanical seal and complete the flushing process. Furthermore, the higher the impurity content (or the more likely it is to contain impurities) of the sealed medium (such as air, water, or engine oil) within the mechanical seal, the greater the flushing pressure should be. However, the pressure resistance of the mechanical seal should also be considered to avoid eroding it under excessive flushing pressure, reducing its service life, or even causing damage.

[0070] Cooling efficiency reflects the rate at which the cooling module 120 cools the flushing fluid. In some embodiments, cooling efficiency may be related to the power of the cooling module 120; for example, the higher the power of the cooling module 120, the higher the cooling efficiency. By cooling the flushing fluid, the mechanical seal is cooled simultaneously with the flushing, preventing excessively high temperatures from affecting the service life of the mechanical seal. Furthermore, it avoids excessive temperature differences between the flushing fluid and the medium, preventing localized thermal expansion and contraction deformation of the mechanical seal.

[0071] In some embodiments, the processor 150 can control the flushing pressure and cooling efficiency in various ways based on monitoring data. For example, the processor 150 can increase the flushing pressure of the flushing fluid by pressurizing it when the pressure monitoring data is below a preset threshold. As another example, the processor 150 can control the cooling module 120 to turn on, or control the power of the cooling module 120 to increase cooling efficiency and reduce the temperature of the flushing fluid, when the temperature monitoring data is above a preset threshold. In some embodiments, the appropriate power of the cooling module 120 can be determined by looking up a table based on the medium temperature, the temperature of the mechanical seal, and the mechanical seal's own data (material).

[0072] In some embodiments, based on the monitoring data obtained by the monitoring device 130, the flushing pressure of the flushing fluid in the flushing module 110 and the cooling efficiency of the cooling module 120 are controlled, which can adjust the working parameters of the mechanical seal flushing device 100 in real time during the flushing process, accurately control the flushing process of the flushing fluid flushing the mechanical seal device, and improve the quality and flushing effect of the flushing process.

[0073] In some embodiments, the flushing module 110 can introduce flushing fluid into the mechanical seal device through the inlet pipe and flush the mechanical seal components within the device; after flushing, the flushing fluid can be discharged from the mechanical seal device through the outlet pipe. In some embodiments, the cooling module 120 can be used to cool the flushing fluid in the inlet pipe. Flushing prevents the accumulation of impurities within the mechanical seal device, prevents air pocket formation, maintains and improves lubrication, and simultaneously, the cooling module 120 keeps the flushing fluid at a lower temperature, thus also providing a cooling effect.

[0074] In some embodiments, the processor 150 can control the flushing pressure by adjusting the relevant structure of the mechanical seal flushing device 100 or by adjusting the flushing fluid flow rate, flow rate, volume, etc. through the flushing module 110.

[0075] In some embodiments, the processor 150 may control the flushing pressure of the flushing fluid in the flushing module 110 based on the pressurization module 140. In some embodiments, the pressurization module 140 (such as a booster pump) may pressurize the flushing fluid to increase its flushing pressure. In some embodiments, the flushing pressure of the flushing fluid may be maintained or reduced by controlling the pressurization module 140 not to pressurize the flushing fluid.

[0076] In some embodiments, the processor 150 may acquire impurity data of the sealed medium within the mechanical seal device.

[0077] Impurity data refers to data related to impurities within the mechanical seal device. Impurity data may include impurity type (e.g., carbon deposits, silt), impurity content, etc.

[0078] In some embodiments, the processor 150 can determine the type of impurity based on common sense or experience. For example, impurities in a gearbox are typically carbon deposits; impurities in a water pump are typically silt. In some embodiments, the processor 150 can determine the impurity content based on liquid particle monitoring data during filter operation. For example, the filter may be equipped with a liquid particle monitoring device to monitor changes in the number of particles before and after filtration; a large change in the number of particles indicates a gradual increase in impurities; the change in the number of particles per unit time can reflect the amount of impurities per unit time.

[0079] In some embodiments, the processor 150 may control the flushing pressure of the flushing fluid in the flushing module 110 based on at least one of impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device.

[0080] The pressure of the sealed medium refers to the pressure of the sealed medium within the device. The pressure of the sealed medium can be obtained through pressure monitoring components.

[0081] Pressure resistance refers to the flushing pressure that a mechanical seal and its components can withstand without affecting its service life. Pressure resistance can be obtained through calculation or by querying preset data tables, based on the structure of the mechanical seal and the physical properties of its components.

[0082] In some embodiments, the processor 150 may determine a preset flushing pressure based on at least one of impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device, thereby controlling the flushing pressure of the flushing fluid in the flushing module 110.

[0083] In some embodiments, the preset flushing pressure can be obtained based on a vector database. The processor 150 can determine search features based on at least one of impurity data (roughly estimated), the pressure of the sealed medium, and the pressure resistance of the mechanical seal device. The search features are then input into the vector database to obtain the search result, which is the preset flushing pressure. In some embodiments, historical flushing pressures corresponding to historical search features whose vector distance to the search features is less than a distance threshold can be used as search results. The vector distance can be a cosine distance.

[0084] Figure 3 This is a schematic diagram of an erosion model according to some embodiments of this specification.

[0085] In some embodiments, the processor 150 can predict the erosion risk to the mechanical seal device under different flushing pressures based on erosion models and different impurity contents. In some embodiments, the processor 150 can determine the target flushing pressure based on the prediction results and issue control commands to control the pressurization module 140 to operate. The target flushing pressure may refer to the final determined flushing pressure of the executable flushing fluid.

[0086] In some embodiments, the erosion model can be used to predict erosion risk and target flushing pressure. In some embodiments, the erosion model can be a machine learning model. In some embodiments, the erosion model can be a neural network (NN), a recurrent neural network (RNN), or a combination thereof.

[0087] In some embodiments, such as Figure 3 As shown, the erosion model may include an impurity judgment layer 310 and a risk judgment layer 320.

[0088] The impurity determination layer 310 can be used to determine the impurity content feature 312. In some embodiments, the input to the impurity determination layer 310 may include particle monitoring data 311, and the output may include the impurity content feature 312. In some embodiments, the impurity determination layer 310 may be an RNN model.

[0089] The risk assessment layer 320 can be used to determine erosion risk. In some embodiments, the inputs to the risk assessment layer 320 may include impurity content characteristics 312, at least one preset flushing pressure 321, mechanical seal device characteristics 322, and impurity type 323, and the output may include erosion risk 324. In some embodiments, the risk assessment layer 320 may be an NN model.

[0090] The particle monitoring data 311 can be particle monitoring data at multiple time points obtained from the liquid particle monitoring device in the filter. The mechanical seal device's own characteristics 322 can include the mechanical seal device's structure, material, service life, etc. The impurity type 323 can be found in the relevant explanation in the impurity data section above.

[0091] Erosion risk 324 refers to the risk that when the flushing fluid flushes impurities from the mechanical seal through the outlet pipe, the impurities will cause frictional erosion damage to the mechanical seal under the flushing pressure, affecting the sealing effect and service life.

[0092] The preset flushing pressure 321 refers to the initially set flushing pressure, which can be set manually based on experience or determined by other methods. In some embodiments, the processor 150 can determine the current search feature based on impurity data (which may be a rough estimate), the pressure of the sealed medium, and the pressure resistance of the mechanical seal device, and then input the current search feature into the flushing pressure vector database to obtain the search result, i.e., the preset flushing pressure 321. For example, the processor 150 can use the historical flushing pressure corresponding to historical search features whose vector distance from the current search feature is less than a distance threshold as the search result, and then determine one or more preset flushing pressures 321. The vector distance can be a cosine distance, etc.

[0093] The erosion model can be trained using multiple first training samples with a first label. In some embodiments, the first training samples may include sample particle monitoring data, sample impurity content characteristics, and preset sample flushing pressure. In some embodiments, the first training samples can be generated by processor simulation.

[0094] The primary label can be the corresponding sample's erosion risk. For example, 0 can represent no erosion risk, and 1 can represent erosion risk. The primary label can be obtained manually or automatically based on historical data. For example, based on prior experience or historical data, sample data that meets certain conditions (a certain range of particle quantity variation, rinsing pressure range, impurity content range, and phenomena such as leakage and increased wear after rinsing) can be labeled as having erosion risk, while other sample data are labeled as not having erosion risk.

[0095] In some embodiments, the impurity judgment layer 310 and the risk judgment layer 320 can be obtained through joint training. For example, sample particle monitoring data is input into the impurity judgment layer 310 to obtain the sample impurity content characteristics output by the impurity judgment layer 310; the sample impurity content characteristics output by the impurity judgment layer 310, along with the sample preset flushing pressure, the characteristics of the sample mechanical seal device itself, and the sample impurity type, are input into the risk judgment layer 320 to obtain the sample erosion risk output by the risk judgment layer 320.

[0096] During training, the erosion model can construct a loss function based on the output of the label and impurity judgment layer 310. Simultaneously, the erosion model can update the parameters of the impurity judgment layer 310 and the risk judgment layer 320 until preset conditions are met, at which point training is complete. These preset conditions may include one or more of the following: the loss function is less than a threshold, convergence, or the training period reaches a threshold.

[0097] In some embodiments, the processor may select a preset flushing pressure 321 that has the lowest erosion risk and is below the risk threshold as the target flushing pressure.

[0098] In the embodiments of this specification, determining the target flushing pressure using an erosion model can quickly and accurately predict the target flushing pressure of the flushing fluid in the flushing module, improving data processing efficiency and making the evaluation results more accurate.

[0099] In some embodiments, the input to the erosion model may also include the temperature of the mechanical seal. It is understood that the operating conditions of the mechanical seal differ at different temperatures, and its physical properties, such as corrosion resistance and pressure resistance, also vary. Considering the impact of different temperatures on the magnitude of erosion risk can make the model's predictions more realistic and improve the model's effectiveness.

[0100] In some embodiments, by analyzing the changes in particle monitoring data at different time points monitored by the filter, relatively accurate and reliable impurity data can be obtained. Based on the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal device, the processor 150 can quickly obtain a relatively reasonable preset flushing pressure based on the vector database. Based on the erosion model, the processor 150 can effectively determine the erosion risk of different preset flushing pressures, and then select a flushing scheme that can meet the flushing requirements while minimizing damage to the mechanical seal device from the preset flushing pressure.

[0101] In some embodiments, the processor 150 can acquire at least one temperature monitoring data at at least one time point based on the temperature monitoring component of the monitoring device 130 for at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device.

[0102] In some embodiments, when the temperature of the flushing fluid in the inlet pipe is too high, and the temperature of the sealed medium or the mechanical seal device fails to decrease or continues to rise, it indicates insufficient cooling efficiency and the need to improve cooling efficiency. Therefore, it is necessary to monitor the temperature of at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device.

[0103] In some embodiments, multiple temperature monitoring components may be included and installed in different locations, and the processor can acquire corresponding temperature monitoring data based on the temperature monitoring components. In some embodiments, the temperature monitoring component used to monitor the temperature of the mechanical seal device may be mechanically connected to a non-moving module (e.g., stationary ring) of the mechanical seal device.

[0104] In some embodiments, the processor 150 may control the cooling efficiency of the cooling module 120 based on at least one temperature monitoring data.

[0105] In some embodiments, the processor 150 can control the cooling efficiency of the cooling module 120 by adjusting the flushing pressure based on at least one temperature monitoring data. For example, the processor 150 can activate the cooling module 120 to cool the flushing fluid when the temperature of the medium or mechanical seal device exceeds a threshold, based on the temperature monitoring component. Alternatively, the processor 150 can determine the appropriate power of the cooling module 120 based on at least one of the medium temperature, the temperature of the mechanical seal device, and the material of the mechanical seal device itself, using historical data or a lookup table.

[0106] In some embodiments, the processor 150 may determine the appropriate power of the cooling module 120 based on the medium temperature, the temperature of the mechanical seal, and the mechanical seal's own data, using a preset algorithm.

[0107] In some embodiments, the preset algorithm may include: determining, based on a temperature monitoring component, whether the temperature of the flushing fluid in the inlet pipe and the temperature of the sealed medium / mechanical seal device have reached a preset temperature threshold; if so, the processor 150 issues a command to start the cooling module 120 for cooling; after a preset time, if at least one of the temperatures of the flushing fluid in the inlet pipe and the sealed medium / mechanical seal device is still not lower than the temperature threshold, then the cooling efficiency is increased. The algorithm for the increase in cooling efficiency is as follows:

[0108] Increase range = A exp[Preset time duration / Tolerance temperature duration + (Current temperature - Preset temperature threshold) / Tolerance temperature difference], where A is a manually preset coefficient > 0.

[0109] Understandably, A is related to the mechanical seal's own data (material, involving heat dissipation efficiency); the tolerance temperature duration and tolerance temperature difference can be preset, representing the time during which the temperature can not drop below the temperature threshold and the maximum temperature difference that can be tolerated, respectively. The larger the temperature difference and the longer the temperature cannot drop, the less easily the flushing fluid cools down. Therefore, exp is an exponential function, and the improvement in cooling efficiency can increase exponentially.

[0110] In some embodiments, when the flushing fluid temperature in the inlet pipe is too high, the cooling efficiency can be appropriately improved by a preset algorithm; when the temperature data of the sealed medium / mechanical seal device cannot be reduced or continues to rise, the cooling efficiency can be significantly improved according to the preset algorithm.

[0111] In some embodiments, the processor 150 can adjust the flushing pressure of the flushing fluid in the flushing module 110 based on at least one temperature monitoring data by adjusting instructions. For example, if the medium temperature detected by the temperature monitoring component is too high, the flushing pressure of the flushing fluid can be increased to increase the flow rate of the flushing fluid, thereby ensuring the cooling efficiency of the cooling module 120.

[0112] In some embodiments, the processor 150 may adjust the flushing pressure of the flushing fluid in the flushing module 110 in response to at least one temperature monitoring data meeting a preset temperature condition. For example, the processor 150 may adjust the flushing pressure of the flushing fluid in the flushing module 110 based on the temperature monitoring data being greater than a maximum temperature threshold. As another example, the processor 150 may adjust the flushing pressure of the flushing fluid in the flushing module 110 based on the temperature change amplitude in the temperature monitoring data being greater than a set threshold.

[0113] In some embodiments, the processor 150 may, based on an erosion model, set multiple flushing pressures corresponding to erosion risks below a risk threshold as candidate flushing pressures; and predict the temperature of the mechanical seal device at future time points under different candidate flushing pressures, the current temperature of the mechanical seal device, the current temperature of the sealed medium, and the current cooling power using a temperature model.

[0114] The temperature model can be a machine learning model used to predict the temperature of the mechanical seal at subsequent time points. In some embodiments, the temperature model can be a Long-Short Term Memory (LSTM) model.

[0115] In some embodiments, the inputs to the temperature model may include candidate flushing pressure, current temperature of the mechanical seal, current temperature of the medium, and cooling power; the output may include the temperature of the mechanical seal at subsequent time points. The cooling power may be a sequence of data consisting of current and previous cooling powers. For more information on flushing pressure and cooling power, please refer to [link to relevant documentation]. Figure 2 And its related descriptions.

[0116] In some embodiments, the temperature model can be trained using multiple second training samples with second labels.

[0117] In some embodiments, the second training sample may include sample flushing pressure, sample temperature, and sample cooling power acquired at a first historical time, and the second label may be the temperature of the mechanical seal device acquired at a second historical time. The first historical time is prior to the second historical time. In some embodiments, the second training sample may be acquired based on historical data, and the second label may be automatically labeled based on historical data.

[0118] In some embodiments, the processor 150 can re-input different candidate flushing pressures and the temperature of the mechanical seal at subsequent time points into the erosion model. For example, the processor 150 can use different candidate flushing pressures and the temperature of the mechanical seal at subsequent time points as inputs to the risk assessment layer into the erosion model to further predict the magnitude of the erosion risk, and select the candidate flushing pressure corresponding to the lowest erosion risk in the prediction results as the flushing pressure to be executed.

[0119] It is understandable that the risk of erosion may vary at different temperatures. As the flushing process proceeds, the temperature of the mechanical seal may change, and the risk of erosion may also change before and after flushing. By predicting the temperature change sequence of the mechanical seal at multiple future time points after flushing, and then using the previously established machine learning model, different candidate flushing pressures and the temperature of the mechanical seal at subsequent time points predicted by the temperature model are re-inputted to further predict the risk of erosion. This approach can obtain more realistic prediction results by using the predicted temperature after flushing, compared to using only the temperature before flushing, without increasing the initial cost of model building and training, thus meeting the usage requirements.

[0120] It should be noted that the above description of the process is for illustrative purposes only and does not limit the scope of this specification. Those skilled in the art can make various modifications and changes to the process under the guidance of this specification. However, these modifications and changes remain within the scope of this specification.

[0121] This specification provides a control system for a mechanical seal flushing device 100, comprising a processor 150, which is used to execute the control methods of the aforementioned one or more embodiments.

[0122] This specification provides one or more embodiments of a computer-readable storage medium that stores computer instructions. When a computer reads the computer instructions from the storage medium, the computer executes the control method as described in the foregoing one or more embodiments.

[0123] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0124] Furthermore, this specification uses specific terms to describe embodiments thereof. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Moreover, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0125] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods described herein. Although various examples have been discussed in the foregoing disclosure of some embodiments of the invention that are currently considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments described herein. For example, while the system components described above can be implemented using hardware devices, they can also be implemented solely using software solutions, such as installing the described system on existing servers or mobile devices.

[0126] Similarly, it should be noted that, in order to simplify the description disclosed herein and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of embodiments in this specification may sometimes combine multiple features into a single embodiment, drawing, or description thereof. However, this method of disclosure does not imply that the subject matter of this specification requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of a single embodiment disclosed above.

[0127] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0128] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this specification, the entire contents of which are incorporated herein by reference. This excludes historical application documents that are inconsistent with or conflict with the content of this specification, as well as documents that limit the broadest scope of the claims in this specification (currently or subsequently appended to this specification). It should be noted that in the event of any inconsistency or conflict between the descriptions, definitions, and / or terminology used in the supplementary materials to this specification and the content of this specification, the descriptions, definitions, and / or terminology used in this specification shall prevail.

[0129] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. A mechanical seal flushing device, characterized in that, It includes a flushing module, a cooling module, a monitoring device, a pressurization module, and a processor; The flushing module includes an inlet pipe, an outlet pipe, a valve, and a filter; the filter is respectively disposed on the inlet pipe and the outlet pipe; the filter is equipped with a liquid particle monitoring device for acquiring particle monitoring data; the inlet pipe and the outlet pipe are mechanically connected to the mechanical seal device, the inlet pipe is used to input flushing fluid into the mechanical seal device and flush the mechanical seal components inside the mechanical seal device, and the outlet pipe is used to discharge the flushing fluid from the mechanical seal device; The cooling module is mechanically connected to the liquid inlet pipe and is used to cool the flushing liquid in the liquid inlet pipe. The monitoring device includes at least a pressure monitoring component, a temperature monitoring component, and a flow rate monitoring component; the temperature monitoring component is used to monitor the temperature of at least one of the flushing fluid in the inlet pipe, the flushing fluid in the outlet pipe, the sealed medium, and the mechanical seal device, so as to obtain at least one temperature monitoring data at at least one time point. The processor is communicatively connected to the flushing module, the cooling module, the pressurization module, and the monitoring device, respectively. The processor is used to: control the cooling efficiency of the cooling module based on the at least one temperature monitoring data; Obtain impurity data of the sealed medium within the mechanical seal device; Based on the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal, the search features are determined, and then the search features are input into the vector database to obtain the search results, which is the preset flushing pressure. The erosion model includes an impurity assessment layer and a risk assessment layer. The input of the impurity assessment layer includes the particle monitoring data, and the output includes impurity content characteristics. The sample impurity content characteristics output by the impurity assessment layer, as well as the sample preset flushing pressure, the sample mechanical seal device characteristics, and the sample impurity type are input into the risk assessment layer to obtain the sample erosion risk output by the risk assessment layer. The preset flushing pressure with the lowest erosion risk and below the risk threshold is selected as the target flushing pressure. The flushing pressure of the flushing fluid is controlled by the pressurization module. The target flushing pressure refers to the final applied flushing pressure. as well as Based on the at least one temperature monitoring data, the flushing pressure of the flushing fluid in the flushing module is adjusted by an adjustment command.

2. A control method for a mechanical seal flushing device, characterized in that, The method is processor-based and includes: Particle monitoring data is acquired based on a liquid particle monitoring device; Temperature monitoring is performed on at least one of the following: flushing fluid in the inlet pipe, flushing fluid in the outlet pipe, sealed medium, and mechanical seal device, based on temperature monitoring components, to obtain at least one temperature monitoring data at at least one time point. Based on the at least one temperature monitoring data, the cooling efficiency of the cooling module is controlled; Obtain impurity data of the sealed medium within the mechanical seal device; Based on the impurity data, the pressure of the sealed medium, and the pressure resistance of the mechanical seal, the search features are determined, and then the search features are input into the vector database to obtain the search results, which is the preset flushing pressure. The erosion model includes an impurity assessment layer and a risk assessment layer. The input of the impurity assessment layer includes the particle monitoring data, and the output includes impurity content characteristics. The sample impurity content characteristics output by the impurity assessment layer, as well as the sample preset flushing pressure, the sample mechanical seal device characteristics, and the sample impurity type are input into the risk assessment layer to obtain the sample erosion risk output by the risk assessment layer. The target flushing pressure is selected as the preset flushing pressure, which minimizes erosion risk and is below the risk threshold. The flushing pressure of the flushing fluid is controlled by a pressurization module. The target flushing pressure refers to the final applied flushing pressure. Based on the at least one temperature monitoring data, the flushing pressure of the flushing fluid in the flushing module is adjusted by an adjustment command; The flushing module is used to introduce flushing fluid into the mechanical seal device through the inlet pipe, flush the mechanical seal device, and discharge the flushing fluid from the mechanical seal device through the outlet pipe; the cooling module is used to cool the flushing fluid in the inlet pipe.

3. A control system for a mechanical seal flushing device, comprising a processor, characterized in that, The processor is used to execute the control method of the mechanical seal flushing device as described in claim 2.

4. A computer-readable storage medium, characterized in that, The storage medium stores computer instructions. When the computer reads the computer instructions from the storage medium, the computer executes the control method of the mechanical seal flushing device as described in claim 2.

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