2368 results about "Liquid level sensor" patented technology

The invention relates to the technical field of liquid level detection, in particular to a scrubber sewage tank water level detection system and method based on a liquid level sensor, and the system comprises a sensing data acquisition module, a liquid level signal conversion module, a multi-source numerical value comparison module, a liquid level fluctuation recognition module and an alarm action linkage module. According to the invention, through acquisition of a sensor capacitance change sequence, elimination of abnormal fluctuation, construction of a stable reference curve, enhancement of data immunity, mapping of a liquid level section based on an average capacitance value, accurate identification of liquid level elevation is realized, synchronous comparison of liquid level state information in various communication protocols is realized, and data consistency and reliability are improved. A liquid level fluctuation boundary is accumulatively recognized through trend direction change, a change section is dynamically marked, alarm triggering is based on boundary area and state mark double verification, warning response accuracy and effectiveness are enhanced, and a high-precision and high-stability liquid level detection and early warning system is constructed.

The invention discloses an automatic machine tool cooling liquid supplementing device based on a liquid level sensor, which is applied to the technical field of automatic machine tool cooling liquid supplementing and comprises a liquid supplementing mechanism and a liquid level detection mechanism, the liquid level detection mechanism is arranged on one side of the liquid supplementing mechanism, and the liquid level detection mechanism is in pipeline connection with the liquid supplementing mechanism; the liquid supplementing mechanism comprises a machine body, a control cabinet and a four-way pipe, and the control cabinet is in signal connection with a liquid supplementing system; the liquid level detection mechanism comprises a circulating box, a fifth liquid supplementing pump, a liquid level sensor, a buffering assembly and a cleaning assembly, the buffering assembly and the cleaning assembly are both located in the fine filtrate area, and a concentration sensor is fixedly connected to the interior of the circulating box; the buffer assembly comprises two sets of limiting blocks and a plurality of fan wheels, the cleaning assembly comprises an air cylinder, a cleaning rod and a motor, the bottom of the cleaning rod is arranged to be in a semicircular shape matched with the radius of a floating ball of the liquid level sensor, and automatic and accurate control over cooling liquid can be achieved.

The invention provides a liquid cooling CDU system with an intelligent pressure balance tank, and relates to the technical field of electronic equipment heat dissipation, and the system comprises a main circulation loop, the intelligent pressure balance tank, a liquid supplementing loop, a control system and a monitoring module. The intelligent pressure balance tank is provided with a liquid level sensor set, an exhaust valve installed on the non-top portion and a mechanical pressure release valve. The installation height of the exhaust valve is preset so that a buffer air layer can be reserved. The control system responds to signals of the liquid level sensor and controls opening and closing of the liquid supplementing loop and the exhaust valve. Through the design of a buffer air layer and a non-top valve group of the intelligent pressure balance tank, automatic liquid supplementing and graded pressure protection logic are combined, the problems of manual liquid supplementing lag, large pressure fluctuation, high safety risk and the like of a traditional liquid cooling CDU system are solved, and the liquid cooling CDU system is suitable for efficient heat dissipation of a data center and high-power electronic equipment.

The utility model relates to a secondary ink cartridge assembly for a printer, which comprises a secondary ink cartridge body, the secondary ink cartridge body comprises an ink cartridge body and an ink cartridge cover which are mutually sealed and covered, a high-pressure ink cavity, a low-pressure ink cavity and a normal-pressure ink cavity are arranged in the ink cartridge body, and the high-pressure ink cavity, the low-pressure ink cavity and the normal-pressure ink cavity are respectively provided with a liquid level sensor. The high-pressure ink cavity is sequentially communicated with the printing spray head, the low-pressure ink cavity, the normal-pressure ink cavity, the second ink pump, the bubble removing device and the first ink pump, so that ink flows out of the high-pressure ink cavity, sequentially flows through the printing spray head, the low-pressure ink cavity, the second ink pump, the normal-pressure ink cavity, the first ink pump and the bubble removing device and then flows back into the high-pressure ink cavity, and therefore a self-circulation ink path is formed. According to the secondary ink box, ink between the secondary ink box body and the printing spray head keeps continuous circulating flow, precipitation is avoided, the temperature of the ink entering the printing spray head is appropriate and constant, the bubble content is small, the pressure fluctuation is small, and therefore the printing quality is higher, and the printing effect is better.

The invention provides an oil level monitoring and leakage early warning system for a hydraulic system of a dredger, which relates to the technical field of hydraulic system monitoring and comprises a hydraulic oil tank, an actuating mechanism assembly connected with the hydraulic oil tank through a pipeline, a data processing unit, a multi-source sensing module, an early warning module and a control module, the multi-source sensing module comprises an integrated liquid level sensor, an actuating mechanism displacement sensor group, an attitude sensor and a temperature sensor, and is used for collecting hydraulic oil level, displacement of each actuating mechanism, ship trim / heeling angle and oil temperature data in real time; the dynamic compensation calculation module is connected with the data processing unit; and the intelligent early warning module is connected with the data processing unit. Normal change and leakage can be distinguished by calculating the oil level change caused by the action of the executing mechanism and the posture of the ship, early warning is conducted in time, pollution and economic losses are prevented, and the situation that when workers inject hydraulic oil, the hydraulic oil splashes, bubbles are generated, and a hydraulic element is damaged can be prevented.

The utility model discloses a biological sample low-temperature preservation device. A freezing storage set and a rotating assembly are placed in a low-temperature storage cavity; the bottom of the lifting part is arranged at the top, located in the transition area, of the heat preservation tank body, a lifting assembly is arranged at the top of the lifting part, and a lifting part of the lifting assembly can sequentially penetrate through the heat preservation taking and placing part and the transition part and extend into the heat preservation part; the first liquid level sensor, the liquid inlet pipeline, the first temperature sensor and the second liquid level sensor are all located in the heat preservation tank body, the first liquid level sensor and the liquid inlet pipeline are both close to the lower surface of the rotating disc, the first temperature sensor is located on the peripheral wall face of the rotating disc, and the second liquid level sensor is located on the inner top of the heat preservation tank body. The liquid inlet valve is communicated with the liquid supplementing valve, the liquid supplementing valve is communicated with the liquid inlet pipeline, the exhaust valve is communicated between the liquid supplementing valve and the liquid inlet valve, and the exhaust valve is communicated with the vertical channel; the second temperature sensor is located in the cylinder. When the cryopreservation box is taken and placed, the cryopreservation box is in a low-temperature area of-80 DEG C to-170 DEG C, so that the biological sample is always in a protection state.

A method and apparatus are provided. An aerosol-generating device includes a chamber configured to store a liquid aerosol-generating material, a main body including a partition wall facing the chamber, a conductive member provided on one surface of the chamber facing the partition wall, and a level sensor configured to sense an amount of the liquid aerosol-generating material stored in the chamber, in which the level sensor is configured to sense the amount of the liquid aerosol-generating material by applying current to the conductive member and measuring a voltage value that varies depending on a capacity of the liquid aerosol-generating material.

The invention discloses a range-extended hybrid motorboat system and a control method, and relates to the technical field of new energy engineering, and the system comprises a man-machine interaction unit which is used for receiving an operation instruction and displaying a system state; the system control unit is used for receiving a user instruction and feedback information and issuing a control instruction to the corresponding unit; the high-low voltage unit is used for storing, converting and distributing the electric energy; and the power integration unit is used for providing a fuel power source for the range extending mode and comprises an engine, an engine controller, an electric control ISG motor, an electric control driving motor, a cooling device, a fuel tank and a liquid level sensor. The range-extended hybrid power mode of fuel power generation and motor driving is adopted, the battery is continuously charged or the electric control driving motor is directly supplied with power when the electric quantity is insufficient, energy can be quickly supplemented through refueling, the problems that a pure electric motorboat is short in endurance and inconvenient to charge are effectively solved, and the service life of the pure electric motorboat is prolonged. The advantages of low noise and zero emission of pure electric drive and long endurance of fuel power are achieved.

The invention relates to the technical field of infusion monitoring management based on central monitoring, and discloses an infusion monitoring management method based on central monitoring. Collecting the residual volume at regular time through a liquid level sensor, calculating the instantaneous flow velocity by combining the volume difference and time difference of adjacent samples, setting the order of a fractional derivative, and recursively solving a generalized binomial coefficient to obtain a derivative value; constructing a sliding window according to a preset time window, extracting a median and a median absolute deviation, and adaptively generating upper and lower limit thresholds; and comparing the derivative and the threshold value mark abnormity in real time, and regularly summarizing to generate a monitoring report. According to the integrated process, the problems of noise sensitivity, lag and missing detection of traditional monitoring are solved, fractional order derivatives strengthen tiny drift perception, robust statistics restrains interference, a self-adaptive threshold gives consideration to sensitivity and robustness, automatic high-frequency sampling and periodic reporting improve monitoring precision and response speed, manual burden is relieved, and management is optimized.

The invention discloses an aquaculture box with internal circulation running water, and belongs to the technical field of aquaculture. The aquaculture box comprises a culture box body, a filtering assembly arranged on one side of the culture box body, a suction assembly arranged on one side of the culture box body and used for conveying water in the culture box body into the filtering assembly, and a conveying assembly arranged on one side of the filtering assembly and used for conveying filtered water in the filtering assembly into the culture box body. The aquaculture box further comprises liquid level sensors and a reversing assembly, wherein the liquid level sensors are arranged in the two filtering assemblies respectively and used for monitoring whether blockage occurs or not, and the reversing assembly is arranged on the two filtering assemblies, communicated with the suction assembly and used for enabling the two filtering assemblies to filter alternately. According to the breeding box, through the double filtering assemblies, the liquid level sensor and the reversing assembly, when one air bag is blocked, the corresponding air bag expands to block water flow, the other air bag contracts to switch the water flow, uninterrupted filtering is achieved, and water quality deterioration caused by filtering interruption due to the fact that the filtering assemblies are blocked and need to be cleaned is avoided.

The utility model discloses an automatic filtering and cleaning system for bathing wastewater, which comprises a filtering water tank, a filtering net and a wastewater tank, the filtering water tank is divided into a filtering area and a non-filtering area by the filtering net, a liquid level sensor A is arranged in the non-filtering area, the outer side of the non-filtering area is connected with a bathing wastewater conveying pipe and a blow-off pipe, the blow-off pipe is provided with a stop valve D, and the stop valve D is connected with the wastewater tank. A liquid level sensor B, a submersible pump A, a cleaning nozzle A and a cleaning nozzle B are fixed in the filtering area, the cleaning nozzle A is connected with a tap water supply point pipeline, and a stop valve A is mounted on the pipeline; the submersible pump A is in pipeline connection with the waste water tank, a stop valve B is arranged on the pipeline, the cleaning nozzle B is in pipeline connection with the stop valve B, and a stop valve C is arranged on the connecting pipeline; and the liquid level sensor A, the liquid level sensor B, the stop valve A, the stop valve B, the stop valve C and the stop valve D are respectively connected with a central controller of the system.

The invention belongs to the technical field of high-precision liquid level detection, and particularly relates to a high-precision liquid level detection method which comprises an installation preparation module, an installation position determination module, a comprehensive consideration module and a special installation method module. And the liquid level detection precision can be obviously improved. The photoelectric sensor is sensitive to light change and suitable for directly detecting the liquid surface; the ultrasonic sensor determines the distance by measuring the propagation time of sound waves, and is relatively insensitive to the change of liquid properties. The combination of the two can complement deficiencies and reduce errors.

The invention provides an automatic dosing adjustment method, device and system and a storage medium, and relates to the technical field of automatic control. The automatic dosing adjusting device comprises a flow measuring barrel, a processor, an automatic adjusting valve, a pneumatic pipe clamp valve and a liquid level sensor; the flow measuring barrel is connected in series to the downstream of the automatic regulating valve; the pneumatic pipe clamp valve is connected to the downstream of the flow measuring barrel in series. According to the structure, through an indirect metering mode of the flow measuring barrel and an unobstructed channel of the pneumatic pipe clamp valve, the problem of core blockage of a traditional dosing system in measurement and control points is integrally solved. The high-reliability hardware is integrated into a closed-loop automatic control system by a processor, and an automatic regulating valve can be instructed to perform precise regulation according to real-time and accurate flow data, so that stable and accurate automatic dosing is realized, and the system reliability and the medicament utilization efficiency are remarkably improved.

A method and a system for applying a sealing agent to the inner surface (2) of a pneumatic tire (4) comprising a supply circuit (10) having a sealing agent collection device (11) comprising a tank (14); a sealing agent heating device (12); and a sealing agent supply device (13) implemented by means of a pumping device (17) that supplies the sealing agent to an applicator device (7), a piston (26), an extractor element (28) intended to withdraw the sealing agent and to supply it to the pumping device (17); a piston (26) position control device (30); and a level sensor (29) for detecting the quantity of sealing agent within the tank (14); wherein the passage of the control device (30) at the position of the level sensor (29) determines the beginning of depletion position of the tank (14) and a completely empty position of the tank (14) as a function whereof the extractor element (28) and heating element (12) are actuated.

The invention discloses a liquid level sensor device of a pesticide preparation tank, and relates to the technical field of liquid level measurement. The device comprises a first acquisition module for acquiring internal component parameters of a pesticide preparation tank and working condition parameters of a preparation process, and an initial mounting position determination module for determining an initial mounting position of a radar liquid level sensor according to related parameters; after the second acquisition module acquires liquid level data and an original radar signal, the change amplitude calculation module calculates the change amplitude of the stirring speed, and if the change amplitude exceeds a threshold value, the dynamic adjustment module dynamically adjusts the position of the sensor; and the liquid level compensation value generation module generates a compensation value by using a trained liquid level dynamic compensation model of correlation mapping of the stirring speed and the measurement error in combination with the liquid level data, the original radar signal and the working condition parameters, and finally, the dynamic fusion module fuses the initial liquid level data and the compensation value to obtain an accurate liquid level value. According to the method, the accuracy of liquid level measurement in the pesticide preparation process can be effectively improved by dynamically adjusting the position of the sensor and based on multi-parameter dynamic compensation.

The utility model relates to the technical field of liquid level sensing, in particular to a non-contact capacitance liquid level sensor which comprises a cavity outer wall and further comprises a first capacitance plate and a second capacitance plate which are arranged on the cavity outer wall, the first capacitance plate and the second capacitance plate are shortened to form interdigitals, and the interdigitals are arranged in the direction perpendicular to the liquid level change direction. When the liquid level in the cavity rises or falls, the dielectric constant of the liquid is different from that of the air, so that the capacitance value between the interdigital electrodes changes. Liquid level measurement can be achieved by measuring capacitance changes and combining the signal processing module to calculate the corresponding relation between the capacitance and the liquid level. The sensor is mounted on the outer wall of the cavity and does not need to be in direct contact with liquid, so that the problems of pollution, corrosion and mechanical wear of a traditional contact sensor are avoided, and the service life and reliability of the sensor are improved. In addition, the device has the advantages of stable measurement, quick response, high precision and the like.

The invention relates to a similar material simulation experiment rock stratum stress visual device and an experiment method, and belongs to the technical field of similar material simulation experiments. The device comprises a water bag, a hose, an observation cylinder and an ultrasonic liquid level sensor, the water bag is connected with the observation cylinder through the hose, and the ultrasonic liquid level sensor is arranged at the top of the observation cylinder and used for collecting water level data in real time. The rock stratum stress is converted into water level change through a water pressure transmission mechanism, stress distribution visualization is achieved, the stress change of the rock stratum in the movement process can be visually seen, and the stress change condition under the set length can be observed.

The invention relates to the technical field of tunnel settlement measurement, in particular to tunnel construction settlement measurement equipment which is used for measuring settlement of the top and the bottom of a tunnel and comprises a top measurement piece making contact with the top of the tunnel and a bottom measurement piece making contact with the bottom of the tunnel. A measuring tube communicated with an inner cavity of the bottom measuring piece is fixedly installed on one side of the bottom measuring piece, liquid is contained in the measuring tube and the inner cavity of the bottom measuring piece, a liquid level sensor for detecting the height of the liquid level in the tube is installed on the measuring tube, and an elastic piece for pushing the top measuring piece and the bottom measuring piece to be away from each other is fixedly installed between the top measuring piece and the bottom measuring piece. The top measuring piece and the bottom measuring piece make contact with the top and the bottom of the tunnel all the time, so that when the tunnel vault and the tunnel foundation are settled, the page in the measuring pipe rises and falls, whether the tunnel vault is settled or the tunnel foundation is settled can be rapidly known through the liquid level sensor, and the numerical value of the settlement amplitude is obtained.

The embodiment of the invention provides an anti-overflow control method of a distributor, a controller, the distributor and a storage medium, the distributor is provided with an ingredient output port and a water box, and the water box is provided with a liquid level sensor; then, the first liquid level height of the water box is detected through a liquid level sensor; according to the first liquid level height, a target filling mode and target anti-overflow protection are started, the target filling mode is an automatic filling mode and / or a manual filling mode, and the target anti-overflow protection is automatic filling anti-overflow protection and / or manual filling anti-overflow protection. The liquid level sensor is arranged in the water box, the liquid level height of the water box can be detected through the liquid level sensor so that the liquid level state of the water box can be judged, the target filling mode and target anti-overflow protection can be set according to the liquid level state of the water box, and therefore the situation that water overflows to the ground is reduced, and meanwhile the water filling efficiency is improved. The situation that a user cannot receive water after the overflow water box is full of water is avoided, and the use experience of the user is improved.

The application discloses a self-adaptive capacitive liquid level sensor, which comprises a metal cylinder, a PCB circuit board, a reference electrode and a measuring electrode which are arranged on the PCB circuit board and are insulated from each other, the reference electrode is arranged at the bottom end of the PCB circuit board and is used for forming a reference capacitor with the metal cylinder, the measuring electrode is arranged above the reference electrode and is used for forming a measuring capacitor with the metal cylinder, and a controller is arranged for calculating the liquid level height after compensating the measuring capacitor by the reference capacitor. The capacitive liquid level sensor is provided with the reference electrode and the corresponding algorithm steps, so that the calculation of the liquid level height is irrelevant to the dielectric constant of the medium, thereby avoiding the detection error caused by the change of the dielectric constant, and the sensor can be applicable to the liquid level detection of different oil products in different environments.

The invention relates to a flow battery system and an online flow calibration method thereof. The system mainly comprises a controller, an electrolyte storage tank, a flow calibration tank and a galvanic pile, a liquid level sensor is arranged on the flow calibration tank, and a first circulating pump, a pressure sensor and a flowmeter are sequentially arranged on a main circulating pipeline close to one side of an inlet of the galvanic pile in the liquid flow direction. A first electric control valve is arranged on the main circulating pipeline close to one side of the electric pile outlet; the electric pile is connected with the flow calibration tank through a first branch, and a second electric control valve is arranged on the first branch; the flow calibration tank is connected with the electrolyte storage tank through a second branch, and a second circulating pump and a third electric control valve are sequentially arranged on the second branch in the liquid flow direction; and the controller is used for calculating the actual flow in real time and automatically compensating the real-time output value of the flow meter on line. According to the invention, long-term stability and accuracy of electrolyte flow measurement can be ensured.

The invention relates to the technical field of seedling culture, in particular to a halophyte seedling culture box for saline-alkali soil, which comprises a box body, an electric telescopic rod is fixedly mounted on the side wall of the box body, a lifting frame is fixedly mounted at the telescopic end of the electric telescopic rod, a supporting groove is formed in the upper surface of the lifting frame, and a supporting block is clamped in the supporting groove; a connecting rod is fixedly installed at the bottom of the supporting block, a seedling raising tray is fixedly installed at the bottom end of the connecting rod, seedling raising boxes distributed in a rectangular array mode are fixedly installed in the seedling raising tray, water permeable holes are formed in the bottoms of the seedling raising boxes, and salinity sensors and liquid level sensors are further fixedly installed on the inner walls of the two sides of the box body; the outer wall of one side of the box body is provided with a water drainage pipe in a communicating mode, and the seedling jacking mechanism is arranged below the seedling raising disc. According to the device, liquid can be accurately supplied, salt deposition can be prevented while salt is scientifically adjusted, further, transplanting damage can be reduced by means of the seedling jacking mechanism, and the survival rate and the cultivation efficiency of seedlings are greatly improved.

The utility model relates to the technical field of sewage treatment, and discloses an integrated sewage treatment device which comprises a treatment tank, electric sliding rails are fixedly mounted at the top ends of the front and rear surfaces of the treatment tank, and the two electric sliding rails are slidably connected with the same moving frame. According to the integrated sewage treatment device, the weight measuring sensor, the liquid level sensor and the like are electrically connected with the control host, so that the weight of the medicament tank and the liquid level of wastewater can be monitored in real time, and the dosing speed, the dosing amount and the stirring strength of medicaments are further controlled, so that the accuracy and the high efficiency of sewage treatment are ensured; the stirring pipe slides on the electric sliding rail through the moving frame, linear movement in waste water is achieved, stirring blades on the stirring pipe continuously stir the waste water in the rotating process, chemicals are continuously and evenly put in the putting holes, the mixing efficiency of the chemicals and the waste water is improved, it is guaranteed that the chemicals are evenly distributed in the waste water, and the waste water treatment efficiency is improved. And the problem of non-uniform mixing caused by intensively putting the medicament in the same area is avoided.

The invention relates to the technical field of sensor cleaning, and discloses a liquid level sensor cleaning method, system and equipment, a medium and a program product, the abnormity caused by attachments on the surface of a sensor can be accurately recognized by combining historical cleaning frequency and a liquid level monitoring data set, and resource waste caused by blind cleaning is avoided. Meanwhile, the influence of the change of the environmental condition of the liquid level sensor on the pollution speed and the cleaning requirement is considered, and long-term stable operation of the liquid level sensor in a complex environment is guaranteed. And furthermore, a target cleaning strategy optimization algorithm is matched according to different pollutant types, so that the cleaning intensity is ensured to be adaptive to pollutant characteristics, and the cleaning efficiency is improved. Furthermore, according to the determined target cleaning time and target cleaning intensity, the ultrasonic oscillation device is controlled to clean the liquid level sensor, timing and quantitative control over cleaning operation is achieved, and it is guaranteed that the liquid level sensor keeps stable measurement precision in long-term operation.

The application discloses an oil level sensor for oil tank oil quantity detection, which comprises a sealing plate, a mounting table integrally formed on the upper surface of the sealing plate, a liquid level sensor and a float oil quantity sensor fixed on the lower surface of the mounting table, a connecting rod rotatably arranged on the lower surface of the float oil quantity sensor, a hollow float ball fixed on the lower end of the connecting rod, a positioning pipe arranged in the hollow float ball and fixed on the inside of the positioning pipe, a limiting hole arranged in the center of the hollow float ball, trumpet mouths arranged on both ends of the limiting hole, a limiting rod arranged in the limiting hole, a connecting rod fixed on the upper end of the limiting rod and a limiting plate arranged on the lower end of the connecting rod. The application improves the structure of the float in the existing oil level sensor, can make the float have a larger measuring range, improve the measuring precision of the oil level, can limit the measuring path of the float, and can keep the oil level sensor for a long time of accurate measurement without frequent maintenance, so it is suitable for wide popularization and application.

The invention relates to a few-person offshore platform domestic sewage treatment device which is characterized in that a liquid level sensor, a regulating cabinet COD sensor, a regulating cabinet ammonia nitrogen sensor and a regulating cabinet pH sensor are arranged in a regulating cabinet, a hydrolysis cabinet filler and a hydrolysis cabinet DO sensor are arranged in a hydrolysis cabinet, and an anoxic cabinet filler, an anoxic cabinet MLSS sensor and an anoxic cabinet DO sensor are arranged in an anoxic cabinet; an aerobic cabinet MBBR, an MLSS sensor and a DO sensor are arranged in the aerobic cabinet, a clear water cabinet liquid level sensor, a COD sensor, a clear water cabinet ammonia nitrogen sensor and a clear water cabinet pH sensor are arranged in the clear water cabinet, and the automatic control system is electrically connected with the multi-parameter water quality analyzer, the sensors, the pumps and the electromagnetic valves. The device is used for domestic sewage treatment of a'few people 'offshore platform, and effluent treated by the device meets the requirements of the decision (containing nitrogen and phosphorus) of the International Maritime Organization MEPC.227 (64).

The invention discloses an automatic vibrating system of a lining trolley, and belongs to the technical field of building construction automation equipment. According to the system, aiming at the problems of response lag and manual operation errors existing in traditional manual vibration, the height change of the concrete liquid level is detected in real time through a liquid level sensing system composed of a plurality of ultrasonic liquid level sensors, and an industrial PLC is adopted to receive and process signals and control a vibration power unit; the vibrating power unit comprises a vibrator motor with specific power and an eccentric wheel vibrating head within the exciting force range, the electric smelting connecting assembly is safely connected with the multiple protection device through a high-temperature-resistant cable, and when it is detected that the concrete liquid level reaches the preset height, vibrating is automatically started, and when it is detected that the concrete liquid level is lower than the preset height, vibrating is automatically stopped. The automatic vibrating device is mainly used for achieving accurate and automatic vibrating operation in tunnel lining concrete construction, and the concrete compactness and the construction quality are ensured.

The invention discloses a stainless steel surface pickling automatic liquid supplementing device and a technology thereof, and relates to the technical field of stainless steel surface treatment.The stainless steel surface pickling automatic liquid supplementing device comprises a bottom plate and a pickling pool, a supporting plate is fixed to the top of the pickling pool, a liquid level sensor is fixed to the supporting plate, and the detection end below the liquid level sensor is located in the pickling pool; an acid liquor concentration self-checking and self-cleaning assembly is arranged on the supporting plate, an automatic liquor supplementing assembly is arranged at the top of the bottom plate, and an acid liquor mixing assembly is arranged in the pickling tank; by arranging the liquid level sensor, the automatic liquid supplementing assembly and the acid liquid mixing assembly, the liquid level in the pickling tank can be monitored in real time in the stainless steel surface pickling process, acid liquid and pure water of a certain proportion can be automatically supplemented into the pickling tank, the liquid level of a solution rises, and the pickling effect is improved. And the situation that stainless steel articles cannot be completely soaked in the pickling solution due to the fact that the liquid level of the solution is too low is avoided, and the stainless steel treatment effect in the device is good within the same time.

The invention relates to the technical field of washing water treatment, and discloses a gradient type oil-solid and water pure physical separation system and method for MTO washing water.The separation system comprises a liquid inlet pipe, a liquid inlet valve and a liquid inlet pump are installed on the liquid inlet pipe, and a secondary deslagging system, a secondary oil-water separation system and a buffer water storage tank are sequentially connected to the liquid inlet pipe in the liquid inlet direction; a liquid level sensor and a backwashing system are mounted on the buffer water storage tank; the backwashing system is sequentially communicated with the secondary deslagging system and the secondary oil-water separation system; a buffer flow guide mechanism is installed at the liquid inlet end of the second-stage deslagging system, and a stepped filler assembly is installed in the second-stage deslagging system. A physical gradient separation process is adopted, step-by-step accurate removal from macroscopic particles to microscopic emulsified oil and efficient recovery of oil phase components in wastewater can be realized, the turbidity and solid content indexes of effluent are remarkably improved, and long-period continuous stable operation can be realized.

The invention discloses a detection device for precise steel pipe production and machining, and relates to the technical field of steel pipe machining. The controller is mounted on one side of the soaking pool; the conveying mechanism is electrically connected with the controller, mounted in the soaking pool and used for conveying the steel pipes; when the detection device for precise steel pipe production and processing runs, under the driving of a first motor, a conveying belt drives steel pipes to sequentially move to the position between a first sealing block and a second sealing block, an air pump injects high-pressure air into a second sliding block through a connecting pipe, and the high-pressure air in the steel pipes is rapidly exhausted from cracks; the liquid level sensor can accurately monitor the liquid level change and feeds back a signal to the controller in real time, so that rapid batch detection of a plurality of steel pipes is realized, the damage condition of the surfaces of the steel pipes is effectively identified, and the high efficiency and accuracy of detection are ensured.