87 results about "Cylinder pressure" patented technology

This application belongs to the technical field of ultra-high pressure compressors, specifically relating to a monitoring method and system for ultra-high pressure compressors. The cylinder pressure and working volume of the cylinder mechanism of an ultra-high pressure compressor can reflect the operating state of the compressor. The cylinder mechanism of the ultra-high pressure compressor includes a cylinder body forming a piston chamber, a middle body and a cylinder head respectively disposed at both ends of the cylinder body, a tie rod bolt connecting the middle body and the cylinder head, and a piston component that slides against the wall of the piston chamber. The cylinder pressure refers to the pressure between the piston component and the cylinder head, and the resulting pressure can cause the cylinder head and middle body to separate from the cylinder body. The tie rod bolt is used to balance the pressure; therefore, the axial strain of the tie rod bolt can reflect the cylinder pressure. In this application, the cylinder pressure is indirectly obtained by directly measuring the axial strain of the tie rod bolt, thereby avoiding drilling holes in the cylinder body to install sensors for direct measurement of the cylinder pressure, thus avoiding damage to the cylinder mechanism and reducing the safety risks associated with measuring the cylinder pressure.

The application discloses an ammonia-hydrogen internal combustion engine knock suppression system and a knock suppression method, and belongs to the technical field of internal combustion engine combustion control. The suppression system comprises an ammonia gas supply unit, a hydrogen gas supply unit, a cylinder pressure sensor, a pressure sensor and an electronic control unit. The ammonia gas supply unit realizes ammonia gas supply in a cylinder. The hydrogen gas supply unit realizes hydrogen gas supply in the cylinder. The cylinder pressure sensor is used for monitoring the pressure in the cylinder in real time and calculating CA50. The pressure sensor is used for monitoring the knock intensity of the cylinder. The electronic control unit is electrically connected with the ammonia gas supply unit, the hydrogen gas supply unit, the cylinder pressure sensor and the pressure sensor respectively, is used for receiving sensor signals, calculating ammonia energy (AER) and knock intensity (KI), controlling the ignition time and dynamically adjusting the ammonia mixing ratio, realizing the collaborative optimization of knock suppression and thermal efficiency, and achieving the win-win effect of "knock suppression" and "efficiency increase".

The invention provides a method for generating performance degradation data of a train air braking system. The method comprises the following steps: on the basis of a brake system of a preset model, analyzing three stages of pressure rise, maximum pressure and pressure stability of pressure change of a brake cylinder, and extracting a plurality of typical fault modes; based on an extended random process model with non-monotonicity and independent incremental property, three stages of pressure change of a brake cylinder and multiple typical fault modes are combined, and linear, nonlinear or stepped performance degradation process modeling of the train air brake system is carried out; overlapping normal distribution random noise on a performance degradation track generated by modeling, simulating a control precision error of an actual braking system, and optimizing a performance degradation process model of the train air braking system; and utilizing the train air braking system performance degradation process model to generate train air braking system performance degradation data in batches.

The application is suitable for the technical field of hydraulic machines, and provides a volume dynamic balancing system and a control method of a free forging hydraulic machine.The volume dynamic balancing system comprises: an upper liquid filling tank installed on the top of a free forging press main machine; a lower power tank installed on a ground foundation; the free forging press main machine installed on a load-bearing foundation in a pit; an oil supplement pump group installed on the ground foundation; a main cylinder pressure relief valve group installed on the top of the free forging press main machine; and a side cylinder pressure relief valve group installed on the top of the free forging press main machine.The application has the advantages of wide application range, low total equipment height, high stability, high safety, simple device structure and strong anti-pollution ability.

A rotor engine comprehensive bench test system and test method belong to the technical field of engine test. The system contains rotor engine, AC power dynamometer, main control unit and other groups of modules. The dynamometer can realize forward and reverse reversible rotation of the engine. The main control unit is provided with forward and reverse switching and three-stage alarm module. Each component is connected and communicated. Sensors, acquisition modules, analyzers and the main control unit are cooperatively networked. The test method sequentially completes bench building, system inspection, pre-starting verification, lubrication establishment, engine starting, top dead center searching, mechanical loss test, warming, full-range boundary monitoring, hot-state running-in, ECU online calibration and data evaluation. The combustion analyzer can calculate cylinder pressure parameters. ECU modified parameters take effect immediately. Data analysis covers power and economic indicators. The present invention solves the problem that existing benches cannot adapt to rotor engine tests, builds a safe and efficient comprehensive test platform and provides technical support for rotor engine research and development.

This invention discloses an intelligent calculation method for the thermal compression ratio of a diesel engine based on machine learning, comprising the following steps: S1, acquiring diesel engine thermal operation data and generating a state data sequence; S2, performing continuous-time state encoding on the state data sequence to construct a state representation sequence; S3, performing feature contribution analysis on the state representation sequence to generate a correlated feature sequence; S4, performing state correlation propagation and compression ratio optimization calculation on the correlated feature sequence to obtain a predicted compression ratio sequence; S5, constructing a theoretical pressure curve and an in-cylinder pressure curve based on the predicted compression ratio sequence, and calculating the curve deviation sequence; S6, performing feedback updates based on the curve deviation sequence and outputting the calculation results. This invention, combined with dual-state flow liquid neural networks, possesses advantages such as strong adaptability to thermal engine states, high accuracy in compression ratio calculation, high stability in complex operating condition analysis, and strong continuous dynamic optimization capability.

This invention discloses an electronic braking system. The electronic braking system according to this embodiment may include: a reservoir storing a pressurized medium; an integrated master cylinder having a master piston connected to the brake pedal, a main chamber whose volume changes according to the displacement of the master piston, and a sealing component sealing the main chamber; a hydraulic supply device that operates a hydraulic piston to generate hydraulic pressure according to an electrical signal output corresponding to the displacement of the brake pedal; a hydraulic control unit disposed between the hydraulic supply device and a plurality of wheel cylinders, and controlling the flow of the pressurized medium supplied to the plurality of wheel cylinders; a loop pressure sensor that senses the hydraulic pressure supplied through the hydraulic supply device; a cylinder pressure sensor that senses the hydraulic pressure in the main chamber; a check flow path connecting the main chamber and the hydraulic supply device; and a check valve disposed in the check flow path to control the flow of the pressurized medium.

The application discloses a kind of full electric injection molding machine cylinder pressure control method, with PI control parameter acquisition stage, single P control stage and PI control stage, in PI control parameter acquisition stage, the actual pressure of cylinder is periodically obtained, the pressure variation of cylinder is obtained, the proportional term K p And integral term T i Two PI control parameters, in single P control stage, the proportional term of PI control parameter acquisition stage is used to control the deceleration process of injection, in PI pressure control stage, the integral term of PI control parameter acquisition stage is introduced to eliminate static deviation, so that the injection pressure is stable to set pressure, PI control parameter self-learning is replaced by manual to adjust cylinder pressure, and automatic PI control parameter setting control is realized;The advantage is not only time-saving and labor-saving, but also will not affect the normal use of full electric injection molding machine, and the working efficiency of full electric injection molding machine can be guaranteed.

This invention discloses a low-emission combustion system and method for an ammonia engine with active control of dual reactive activity, comprising: an ammonia fuel engine and an electronic control unit. A jet ignition device and a liquid ammonia injector are disposed on the cylinder head of the ammonia fuel engine. The jet ignition device provides a jet ignition source to the main combustion chamber, and the liquid ammonia injector injects liquid ammonia fuel into the main combustion chamber. The electronic control unit is connected to the liquid ammonia injector, an air injector, a fuel injector, and a spark plug in the pre-combustion chamber, and is used to adjust the injection timing, number of injections, and injection quantity of the liquid ammonia injector based on at least one parameter among engine speed, load, cylinder pressure, intake state, and combustion phase, while simultaneously adjusting the air injection quantity, hydrogen injection quantity, and pre-combustion chamber ignition timing. The system actively controls the reactive activity within the combustion chamber through multiple injections of liquid ammonia, and simultaneously, through a control strategy, actively controls the combustion rate over a wide range.

This application provides an engine cylinder condition monitoring system, which can be applied to the field of engine monitoring technology. The system includes: a data detection module, comprising: a cylinder pressure detection submodule, used to detect the cylinder pressure of each of multiple cylinders in the engine, obtaining cylinder pressure data for each of the multiple cylinders; a crankshaft phase detection submodule, used to detect the crankshaft angle of the engine, obtaining crankshaft angle data; a data transmission submodule, used to transmit the crankshaft angle data and the cylinder pressure data of each of the multiple cylinders to a data processing module in real time; and a data processing module, used to receive the crankshaft angle data and the cylinder pressure data of each of the multiple cylinders, and based on the crankshaft angle data, the cylinder pressure data of each of the multiple cylinders, and the engine's operating parameter data, obtain the real-time combustion characteristics of the engine, and determine the operating state of each of the multiple cylinders based on the real-time combustion characteristics.

The application provides an engine cylinder pressure calculation method and an engine cylinder pressure virtual sensing system. The method comprises the following steps: establishing a hybrid control combustion model of an engine, inputting first parameters for calculation into the hybrid control combustion model, and performing the following calculation in the hybrid control combustion model: calculating in-cylinder temperature and pressure of the engine in a first stage according to the first parameters, calculating instantaneous in-cylinder local turbulent kinetic energy density in a second stage, calculating a burned gas dilution factor according to the first parameters, the burned gas dilution factor reflecting an obstruction effect of inert gas in a combustion chamber of the engine on mixing of active components, calculating a heat release rate after an ignition delay period in a third stage according to the first parameters, a fuel kinetic energy change rate and the burned gas dilution factor, and calculating a curve of engine cylinder pressure changing with a crank angle according to the heat release rate by using a thermodynamic formula.

The present application provides a kind of hydraulic control system of suspension oil cylinder, including suspension oil cylinder, balance valve and multi-way valve group;And suspension control valve group, wherein, suspension control valve group includes first control reversing valve and second control reversing valve;The working oil port of first control reversing valve is connected between reversing valve and the first main oil path of balance valve, and the oil return port of first control reversing valve is communicated with first oil tank;The working oil port of second control reversing valve is connected with the second main oil path of reversing valve and balance valve, and the oil return port of second control reversing valve is communicated with first oil tank;By setting the cooperation of reversing valve, balance valve, first control reversing valve, second control reversing valve and throttle valve, when suspension oil cylinder pressure maintaining state, corresponding suspension oil cylinder is realized with the load opening of balance valve connected therewith closed, second control reversing valve working oil port closed and the triple protection of throttle valve, guarantee the stable performance of suspension oil cylinder work.

The application belongs to the technical field of compressed air energy storage and discloses a sealed rubber cylinder pressure-bearing testing device, which comprises a pressure cylinder and a counter-force frame, and the counter-force frame is in contact with the end face of the pressure cylinder; the pressure cylinder is in a cylindrical structure, and the pressure cylinder comprises a rubber sleeve and two groups of sealing end heads, the two groups of sealing end heads are respectively arranged at the two ends of the rubber sleeve to form a closed cavity in the rubber sleeve, a threaded hole and a water injection hole are formed in one of the two groups of sealing end heads, the water injection hole is in communication with the threaded hole, the two holes penetrate the sealing end head, a threaded joint is arranged in the threaded hole and is used for connecting an external water pipe; high-pressure liquid is injected into the closed rubber sleeve, the circumferential elastic deformation of the rubber sleeve is utilized to transmit the internal pressure to the inner wall of the rock mass, and the physical simulation of the "expansion alternating load" working condition of the underground lining cavern of the compressed air energy storage power station is realized; the cooperation of the sealing end head, the pressing ring, the positioning column and the locking bolt enables the rubber sleeve to be disassembled, and the operation and maintenance cost of the device is reduced.

The application relates to a tool suitable for a vehicle-mounted liquefied natural gas cylinder pressure test, which comprises a clamp frame, a pressure pipeline system, a rotary simulation unit for driving the cylinder to rotate and feeding back the angle phase information of the cylinder in real time, an environment simulation groove for containing a detection medium, the clamp frame being configured to immerse at least a part of the cylinder in the detection medium, a multi-modal perception array comprising an infrared thermal imager array aligned with the surface of the cylinder, and a control system configured to perform a dynamic pressure test: controlling the pressure pipeline system to inject high-pressure fluid with a preset temperature difference into the cylinder, and monitoring the thermal disturbance characteristics of the liquid film on the surface of the cylinder or the surrounding detection medium through the infrared thermal imager array during the rotation of the cylinder, and locating the leakage point in combination with the angle phase information of the cylinder. The application can significantly improve the detection sensitivity of the micro-leakage of the cylinder and avoid the detection misjudgment caused by the pressure fluctuation due to residual liquid in the conventional pressure test.

The application relates to an engine intake phase deviation determination method and device, electronic equipment and a storage medium. The engine intake phase deviation determination method comprises the following steps: obtaining a first intake phase deviation of a reference engine; obtaining a first crank angle corresponding to the lowest cylinder pressure of the intake stroke of the reference engine; obtaining a second crank angle corresponding to the lowest cylinder pressure of the intake stroke of a measured engine; and determining a second intake phase deviation of the measured engine based on the first intake phase deviation, the first crank angle and the second crank angle. The embodiment of the application can automatically determine the second intake phase deviation of the measured engine without disassembling the engine, and the measurement result can eliminate the influence of sensor hysteresis and temperature drift characteristics on the phase deviation, and is widely applicable to rapidly and accurately measuring the intake phase physical deviation of the engine on a hybrid vehicle or a bench with a reverse drag function.

This utility model discloses a digital cylinder leak detector, belonging to the technical field of automotive testing equipment. The leak detector includes a main metal body, a pressure regulating valve, an air hose, a digital pressure gauge, and a pressure relief valve. The digital pressure gauge features an LED digital tube, multi-color LED light strip, and a progress bar, which can calculate and display the percentage and status of cylinder pressure leakage based on pressure changes. Different color segments of the progress bar correspond to different leakage ratio ranges. The pressure regulating valve has an adjustment range of 0-150 PSI, and the pressure relief valve is preset to open at 120 PSI. The air hose connects to an extension tube and a testing connector via a quick connector, and is equipped with a detachable adapter to adapt to different spark plug hole sizes. The connecting components are fitted with O-ring seals on the external threads to ensure a seal, and the outer surface of the main metal body has an anti-slip structure. Compared with existing technologies, it has advantages such as intuitive display, strong adaptability, comprehensive safety protection, and convenient operation, effectively improving the efficiency and accuracy of cylinder testing.

A work machine includes a lower structure, a slewing upper structure attached to the lower structure via a slewing mechanism, an attachment, including at least a boom, and attached to the slewing upper structure, a boom cylinder configured to drive the boom, a work tool attached to the attachment, and a controller. The controller includes a weight calculating part configured to measure a weight of a transporting object to be transported by the work tool, based on a boom cylinder pressure of the boom cylinder, and a vibration control part configured to generate a command for reducing vibration of the attachment.

This invention relates to the field of automatic control technology, and more specifically, to a vehicle docking and automatic leveling system for loading positions. The system includes a loading platform, a docking platform, a linear guide rail, a sliding platform, a servo motor, a two-dimensional linear scanning laser sensor on the platform side, four-corner hydraulic cylinder assemblies, a cross-balancing valve assembly, a servo valve, a cylinder pressure sensor, a magnetostrictive displacement sensor, and a controller. The linear guide rail is mounted on the top crossbeam of the loading platform. The sliding platform is mounted on the linear guide rail and driven to reciprocate by the servo motor. The two-dimensional linear scanning laser sensor on the platform side is fixed to the sliding platform, with its laser emission plane perpendicular to the longitudinal axis of the loading platform. The four-corner hydraulic cylinder assemblies are located at the bottom of the docking platform and support it. The cross-balancing valve assembly connects to the rodless chambers of two opposite diagonal hydraulic cylinders. This invention can stably acquire the spatial pose information of the rear opening of the vehicle compartment even when the vehicle's parking posture exhibits lateral offset, pitch, or roll.

The application is suitable for the technical field of hydraulic machines, and provides a quick forging press control system and control method based on CBR, which comprises: an upper liquid charging tank installed on the top of a quick forging press host; a pump group installed on a ground base and connected with a lower power tank; the quick forging press host installed on the ground base and comprising a main cylinder, a side cylinder and a return cylinder; the lower power tank installed on the ground base and connected with the upper liquid charging tank; a return valve block installed in a pit, the return valve block being connected with the pump group and a quick forging accumulator unit; the quick forging accumulator unit installed in the pit and connected with the return cylinder; a main side cylinder pressure relief valve group installed on the top of the quick forging press host, the main side cylinder pressure relief valve group being connected with the upper liquid charging tank, the main cylinder and the side cylinder; and a main side cylinder pressure increasing valve group installed on the top of the quick forging press host, the main side cylinder pressure increasing valve group being connected with the upper liquid charging tank and the main side cylinder. The application has the advantages of action coordination, high forging precision and strong anti-interference capability, and is highly practical.

The utility model relates to the field of locomotive overhauls discloses a mobile locomotive brake no -power debugging device. The device includes the cabinet body and sets up in its power, operating platform and removal wheel, is equipped with the total wind interface of connecting outside air source in the cabinet body, is connected electromagnetic valve group and relay valve through first, second pipeline respectively, through the gain and loss electricity of control easing, brake, neutral electromagnetic valve, accurately adjusts the balanced air cylinder pressure, and utilizes the relay valve to make the train pipe pressure automatic following balanced pipe pressure change, realizes brake, easing and pressure maintenance, the sensor installed on the balanced pipe and train pipe feeds back the pressure signal to the control unit, forms closed loop control, and automatically completes performance test and leakage diagnosis. The utility model can independently, efficiently complete the state detection of locomotive brake, has the advantages of high integration, simple operation, accurate and reliable detection.

The application relates to the technical field of hydrogen storage cylinder pressure relief and detection, and particularly discloses an anti-explosion gas storage cylinder limit pressure detection device and a pressure relief structure thereof. When the pressure in the hydrogen storage cylinder abnormally rises and reaches a critical value, the pressure relief mechanism is automatically started to guide the high-pressure hydrogen gas to a limit relief joint. In the process, the pressure relief mechanism intervenes in the high-speed hydrogen gas flow to effectively reduce the flow rate and pressure of the hydrogen gas. When the pressure relief mechanism is started, the pre-fire extinguishing mechanism is driven to pre-extinguish the hydrogen gas after the pressure relief of the pressure relief mechanism, controllable and orderly relief of the high-pressure hydrogen gas is realized, violent impact caused by instantaneous pressure drop is avoided, and the early intervention of the fire extinguishing agent in the relief path can actively inhibit the combustion reaction caused by static electricity or external fire sources, so that the secondary explosion risk in the relief process is fundamentally eliminated, and the safety is greatly improved from passive pressure relief to active explosion suppression.

The utility model discloses a kind of adjustable node welding tool clamps of anti-electrode retrograde metal pipe, it includes: electrode profiling positioning seat, electrode profiling positioning seat is provided with electrode profiling groove, electrode profiling positioning seat bottom is provided with first screw hole, electrode profiling positioning seat is connected on base plate by bolt in first screw hole;Anti-retreating component, it includes mounting seat and anti-retreating bolt, mounting seat is connected on base plate, mounting seat is located at the side of electrode profiling positioning seat away from electrode profiling groove, at least one second screw hole is provided on mounting seat, anti-retreating bolt is screwed in second screw hole, anti-retreating bolt is against electrode profiling positioning seat.The utility model compared with prior art can solve the problem that existing electrode profiling positioning seat bottom plate connection is long hole bolt connection, when air cylinder drives profiling compression block to press down, due to the effect of cylinder pressure makes profiling positioning seat position backward, prone to problem of defective product.

This application relates to the field of engine technology, and discloses a method, device, equipment, and medium for joint optimization control of engine backfire prevention. The method includes: acquiring at least engine speed, average indicated pressure, excess air coefficient, intake manifold pressure, cylinder pressure, valve overlap angle, intake manifold flow velocity, and hydrogen injection parameters, and at least determining the magnitude relationship between cylinder pressure and intake manifold pressure; when the intake manifold pressure is greater than the cylinder pressure, determining that there is no risk of flame backflow in the engine, not triggering the fuse action, and constructing a multi-objective optimization function, and then executing a preset joint optimization strategy based on the multi-objective optimization function; when the intake manifold pressure is not greater than the cylinder pressure, determining that there is a risk of flame backflow in the engine, triggering the fuse action and generating a forced intake blockage command to at least control the intake valve to close and stop intake until the intake manifold pressure is greater than the cylinder pressure for a preset duration, then releasing the fuse action and resuming the execution of the preset joint optimization strategy.

The application belongs to the technical field of shield construction, and particularly discloses a shield machine oil cylinder pressure precise prediction method and system based on trusted artificial intelligence, which comprises the following steps: collecting and obtaining experimental data and simulation data of various dynamics and oil cylinders of a continuous tunneling shield machine; based on the experimental data and simulation data, analyzing and deducing the physical law in oil cylinder driving force estimation, wherein the pressure constraint boundary of the hydraulic oil cylinder is constructed in combination with Newtonian mechanics and the Lagrange multiplier method, and is converted into a loss function; taking a multi-head attention deep neural network as a basic framework for oil cylinder pressure prediction, based on the loss function, an oil cylinder pressure prediction model of the continuous tunneling shield machine is constructed, and the oil cylinder pressure is predicted based on the oil cylinder pressure prediction model. The application introduces a physical information neural network, combines an advanced deep learning method, realizes precise stress prediction of the continuous tunneling shield machine pipe piece installation process, and reduces dangerous working conditions in the construction process.

Control device (1) for an internal combustion engine (100), comprising: a fuel pressure control unit (90) configured to regulate the pressure of a fuel supplied to a fuel injector (134) configured to inject the fuel into an internal combustion engine (100), wherein the fuel injector (134) comprises a valve body, an actuating unit for actuating the valve body, and a fuel injection orifice which is opened or closed according to the actuating of the valve body, wherein a cylinder pressure sensor (140), configured to detect an internal cylinder pressure, which is a pressure in a combustion chamber of the internal combustion engine (100), is attached to the internal combustion engine (100), and wherein the fuel pressure control unit (90) is configured to control the fuel pressure based on a pressure difference between the cylinder internal pressure detected by the cylinder pressure sensor (140) before the valve body is separated from a valve seat and the cylinder internal pressure detected by the cylinder pressure sensor (140) when the valve body is separated from the valve seat.

The MPC combustion control method for marine high-pressure common rail diesel engines based on physical information neural networks belongs to the field of marine high-pressure common rail diesel engine control. It solves the problems of neglecting the physical consistency between the model and the actual engine and poor model generalization ability caused by simply relying on data-driven methods. The method includes: keeping the combustion midpoint constant, acquiring in-cylinder pressure, maximum in-cylinder pressure rise rate, indicated thermal efficiency, and emission data for different pre-injection fuel ratios and pre-main injection timing intervals; calculating the cyclic variation of the diesel engine's average indicated pressure, filtering data, and calculating the cumulative heat release and combustion midpoint; obtaining the influence law of relevant in-cylinder combustion characterization parameters of the diesel engine, determining the crankshaft angle, pre-injection fuel ratio, pre-main injection interval boundary, and maximum cylinder pressure rise rate upper limit corresponding to the pre-injection timing; constructing a diesel engine in-cylinder combustion prediction output model and MPC controller; updating control parameters and combustion state data to achieve closed-loop control. It has applications in energy conservation and emission reduction.

This utility model discloses a functional board deformation stress detection system, relating to the field of functional board testing. It includes a cylinder, a pressure detection module, and a deformation stress detection module. The functional board to be tested is placed above the pressure detection module, and the cylinder is located directly above the pressure detection module. The deformation stress detection module connects the pressure detection module and the cylinder. After detecting the pressure, the pressure detection module outputs a high-level signal to the deformation stress detection module. The deformation stress detection module includes a time control circuit and a deformation detection circuit. The time control circuit consists of a frequency divider circuit and a timing circuit, which can generate a periodic square wave and achieve precise timing. The deformation detection circuit uses components such as a PMOS transistor, comparator, and latching diode to convert the time difference into a voltage difference, combined with an LED to indicate the detection result. This utility model detects deformation by converting the time difference into a voltage, achieving precise deformation detection. The preset time can be manually adjusted via external buttons to meet different needs.

The utility model relates to the technical field of molten iron filtering, disclose a kind of air conditioner compressor cylinder pressure edge water casting molten iron filtering structure, including ceramic frame, the top end fixedly connected of ceramic frame has mounting plate.The air conditioner compressor cylinder pressure edge water casting molten iron filtering structure is provided with connecting plate and limit stopper by being set, pull connecting plate, and connecting plate extrusion spring makes limit stopper separate from the inside of mounting groove, so that mounting plate loses fixed to ceramic frame disassembly, disassembly ceramic frame can replace ceramic frame, prevent ceramic frame from being damaged or filter hole is blocked and influence filtering effect, need to install when pressing connecting plate, then mounting plate is placed at suitable position to make limit stopper and the mounting groove of installation place alignment, after alignment, spring makes limit stopper embedded in the inside of mounting groove and installs and fixes ceramic frame, solve is not convenient according to the demand and disassembly replacement ceramic filter frame, easily influence the problem of filtering effect.