91 results about "Industrial Oils" patented technology

The invention relates to the technical field of classification or anomaly detection, and provides an industrial oil well equipment fault diagnosis method, system, equipment and medium. The industrial oil well equipment fault diagnosis method comprises the following steps: acquiring industrial oil well equipment data for feature extraction, and automatically selecting and adjusting the weight of the feature in combination with the operation state information of the industrial oil well equipment; performing intelligent sampling processing according to the types of the features; based on the features after intelligent sampling processing, fault classification is carried out by adopting multiple classification models, and multiple fault classification results are obtained; fusing a plurality of fault classification results, and dynamically adjusting the weight of each classification result to obtain a fault result; the method provides reasonable and accurate prediction and decision support for fault diagnosis of the rod-pumped well.

The invention provides a heavy oil cracking and separating process based on supercritical carbon dioxide cooperation, and relates to the technical field of industrial oil refining. Comprising the following steps: fully mixing heavy material oil with supercritical carbon dioxide, adding the mixture into a microwave reactor, and carrying out cracking reaction under the action of a microwave field to obtain a cracking mixture; placing the cracking mixture in a supercritical separator, enriching light cracking products in a supercritical carbon dioxide phase and precipitating heavy components and impurities in a heavy phase by controlling the temperature and pressure in the supercritical separator, and separating the supercritical carbon dioxide phase from the heavy phase; performing vacuum flash evaporation or low-temperature separation on the supercritical carbon dioxide phase to obtain a gasoline fraction, a diesel fraction and C1-C4 cracked gas; through a triple core mechanism, the yield and quality of light oil which are far higher than those of a coking technology are obtained at the cost far lower than that of a hydrogenation technology.

The invention belongs to the technical field of environmental science and water treatment, and particularly relates to a PLA-Ni-coated MOF composite membrane and a preparation method and application of the PLA-Ni-coated MOF composite membrane. Comprising a porous polylactic acid substrate film constructed by 3D printing, a metal nickel layer arranged on the surface of the polylactic acid substrate film, and a ZIF-8 nanoparticle layer arranged on the surface of the metal nickel layer, the metal nickel layer is arranged between the polylactic acid substrate film and the ZIF-8 nanoparticle layer. The PLA-Ni-coated MOF composite membrane has a three-stage hierarchical composite structure of a PLA substrate membrane, a nickel coating and a ZIF-8 particle layer, is stable in structure and excellent in performance, has good mechanical strength and acid and alkali resistance stability, and is suitable for large-scale industrial oil-water separation.

The invention provides a temperature control method for a variable frequency heat pump of an industrial oil cooler and a control panel. The method comprises the steps that when the set temperature is smaller than or equal to the difference between the environment temperature and the first preset temperature, the variable frequency heat pump is in a no-load or on-load state, auxiliary electric heating is stopped, and a compressor is started for refrigeration; when the set temperature is larger than or equal to the difference between the environment temperature and the second preset temperature and smaller than or equal to the sum of the environment temperature and the third preset temperature, auxiliary electric heating and compressor refrigeration are started at the same time when the variable-frequency heat pump is in a no-load state, and compressor refrigeration is started and auxiliary electric heating is stopped when the variable-frequency heat pump is in a loaded state; when the set temperature is larger than or equal to the sum of the environment temperature and the fourth preset temperature, auxiliary electric heating is started and compressor refrigeration is stopped when the variable-frequency heat pump is in a no-load state, and auxiliary electric heating is stopped and compressor refrigeration is started when the variable-frequency heat pump is in a loaded state; constant-temperature control is achieved by controlling electric heating and the compressor in stages, and the accuracy and stability of constant-temperature control are improved.

The invention belongs to the technical field of purification and regeneration of industrial oil products, and relates to a composite adsorbent for regeneration of phosphate fire-resistant oil and a preparation method of the composite adsorbent. The catalyst comprises the following components in percentage by mass: 40-60% of a mesoporous silicon-aluminum molecular sieve, 20-35% of surface modified activated aluminum oxide, 10-20% of organic alkali functionalized silica gel and 3-8% of a metal deactivator. According to the invention, the overall adsorption capacity and selectivity of various degradation products in the phosphate fire-resistant oil are obviously improved, and the adsorption loss of effective components of the base oil is effectively reduced.

This application provides a method, apparatus, equipment, and storage medium for quantitative evaluation of oil layers in mud-class reservoirs, belonging to the field of oil and gas exploration and development technology. In this method, based on the parameter values ​​of multiple logging parameters of a first reference block in the target block, the fine-grained sedimentary rock reservoirs in the first reference block, the effective reservoirs within the fine-grained sedimentary rock reservoirs, and the distinction between industrial and non-industrial oil flow layers within the effective reservoirs can be made, thereby determining a set of quantitative evaluation thresholds. These multiple logging parameters include natural gamma, resistivity, spontaneous potential, total organic carbon content, compensated density, NMR porosity, and NMR saturation. This set of quantitative evaluation thresholds is used to identify industrial oil flow layers in the target block. The quantitative evaluation thresholds determined by the above method can efficiently and accurately identify industrial oil flow layers in the target block, thus providing a reliable basis for subsequent oil and gas exploration and development, and improving the efficiency of oil and gas exploration and development.

The application discloses a lignin-based anion-cation dispersant and application thereof in a scrubbing industrial oil-stain hand cleanser. The lignin-based anion-cation dispersant comprises a cationic surfactant and a lignin sulfonate sodium graft copolymer, which are mixed at a mass ratio of 0.1-2.5:1; the lignin sulfonate sodium graft copolymer is prepared from lignin sulfonate sodium, a reaction monomer and an initiator at a weight ratio. The lignin-based anion-cation dispersant is applied to the scrubbing industrial oil-stain hand cleanser. The scrubbing industrial cleanser of the application adopts the independently modified lignin-based anion-cation dispersant to efficiently disperse the scrubbing particles, and in combination with the emulsifying effect of an emulsifier and the physical friction effect of the scrubbing particles, can rapidly resolve heavy oil stains on hands, significantly reduce the amount of the emulsifier, and improve the mildness of the product. After the product is used, hands are not tight and are not stimulated, and the product is suitable for long-term use of processing personnel engaged in machine repairing, printing and machinery.

The utility model discloses an industrial cross-linking vibration degreaser, and belongs to the technical field of environmental protection. The industrial cross-linking oil remover comprises a bottom plate, a supporting frame fixedly installed on the bottom plate, an oil removing box fixedly installed on the supporting frame, a liquid inlet pipe fixedly installed on the oil removing box and a water drainage pipe fixedly installed on the oil removing box. The oil discharge pipe is fixedly mounted on the oil removal tank, the oil removal mechanism is arranged in the oil removal tank and is used for separating oil from water, and the oil removal mechanism comprises a lifting rod fixedly mounted in the oil removal tank and a roller rotationally mounted on the lifting rod; through the cooperative use of the devices, the arrangement of the oil removal mechanism and the oleophylic and non-hydrophilic characteristics of a super-hydrophobic material, oil and water in an oil-water mixture can be automatically separated, an oil scraping strip and a steel belt are not used for oil removal any more, scrap iron embedded in the oil scraping strip is prevented from scratching the surface of the steel belt, and the oil removal uniformity is improved.

The utility model discloses ultrafiltration equipment for low-viscosity industrial oil, and relates to the field of filtering equipment, the ultrafiltration equipment comprises an ultrafiltration tank, an inner cavity of the ultrafiltration tank is provided with a filtering assembly used for filtering industrial oil, the filtering assembly comprises a filter screen installed in the inner cavity of the ultrafiltration tank, the inner cavity of the ultrafiltration tank is fixedly connected with a fixing ring, and the fixing ring is fixedly connected with the ultrafiltration tank. The fixing ring is obliquely and fixedly connected to the surface of an inner cavity of the ultrafiltration tank in an oval shape, the fixing ring and the filter screen are of a detachable connecting structure, a cleaning assembly is arranged on the surface of the ultrafiltration tank and used for cleaning the surface of the filter screen, and an alarm assembly is arranged in the inner cavity of the ultrafiltration tank and used for reminding the filtering condition. The top of the ultrafiltration tank is fixedly connected with an oil well pump used for conveying raw materials, a discharging port of the oil well pump is fixedly connected with a feeding port of the ultrafiltration tank, and the ultrafiltration equipment for the low-viscosity industrial oil solves the problems that in the prior art, when a filter screen is blocked, time and labor are wasted, and production is affected due to the fact that the filter screen needs to be replaced after being shut down immediately.

Laundry detergent compositions that are neutral detergent containing a cationic amine surfactant in combination with nonionic surfactants are disclosed. The compositions beneficially remove difficult to treat soils, including food and industrial oils on polyester, cotton and polycotton blends, as part of a two-part cleaning wash process with an alkali step. Methods of using the neutral laundry detergent compositions are also disclosed.

The utility model relates to industrial oil filtering technical field, and disclose a cottonseed oil pipeline filter assembly convenient to dismount and clean, including oil pipe body, the top of oil pipe body is fixed with mounting seat, the top of mounting seat is fixed with support ring, the inboard of support ring is filled with support pad, and the top of support pad places filter screen, and the top of support ring is installed with shell. This cottonseed oil pipeline filter assembly convenient to dismount and clean, through first seal cover is opened, the impurity in the inside of shell pours out, then rotates knob and drives limit block to rotate, makes limit block away from vertical plate, and vertical plate is not extruded by limit block at the same time, is pushed by the resilience of first spring, drives the inside of the clamping block to separate from the clamping groove, can remove the fixing between first casing and second casing, subsequently, the user rotates first ring stand or second ring stand, holds up shell to the up, takes out the filter screen in it, thereby is convenient to carry out completely clean, and the dismounting process is simple and convenient, does not need special tool, and the operating efficiency is high.

The application belongs to the technical field of hydrogenation catalysts, and particularly relates to a performance improvement method of a hydrogenation refining catalyst. The performance improvement method of the hydrogenation refining catalyst controls the temperature of a reactor filled with the hydrogenation refining catalyst at 320-370 DEG C, uses aviation kerosene to flush the hydrogenation refining catalyst, and then uses normal industrial oil as a solvent to carry dimethyl disulfide to supplement sulfur to the hydrogenation refining catalyst, so as to improve the performance of the hydrogenation refining catalyst. The performance improvement method of the hydrogenation refining catalyst does not need to be regenerated outside the reactor, controls the pretreatment temperature of the catalyst, flushes the catalyst with aviation kerosene, and adds dimethyl disulfide in the reactor of the catalyst device for closed-loop circulation, so that the performance of the hydrogenation refining catalyst is improved, the influence of the change of the performance of the catalyst on the quality of industrial white oil is avoided, and the industrial white oil has good yellowing resistance.

This invention discloses a PCB edge grinding fixture, comprising a fixture substrate, a movable stage, a pushing device, a guiding device, and an edge grinding device. The movable stage includes a first guide rail and a stage portion. The first guide rail is disposed on the fixture substrate, and the stage portion is slidably disposed on the first guide rail. The pushing device can push the stage portion to slide along the first guide rail. The edge grinding device includes a second guide rail, an edge grinding bracket, and a pressing part. A first industrial oilstone is disposed on the inner side of the edge grinding bracket, and a second industrial oilstone is disposed on the top surface of the edge grinding bracket. The second industrial oilstone is aligned with a height limiting block. The pressing part is disposed on the outer side of the edge grinding bracket and fixedly connected to the fixture substrate. A second compression spring is connected between the pressing part and the edge grinding bracket. This invention can remove burrs from the sides and top surfaces of the PCB circuit board edges, removing burrs cleanly and efficiently, ensuring complete removal without omissions, and providing uniform grinding force to avoid damaging the circuit board.

The utility model discloses molybdenum substrate surface industrial oil cleaning equipment, which relates to the field of molybdenum substrate cleaning equipment, comprises an equipment box, and is characterized in that a liquid collecting shell is mounted on the upper end surface of the equipment box, the liquid collecting shell is fixedly connected with the equipment box, and a clamping plate for placing a molybdenum substrate is arranged in the liquid collecting shell; the lower end of the clamping plate is fixedly installed on the inner side face of the liquid collecting shell, a guide frame and a water pump are fixedly installed on the outer side face of the liquid collecting shell, and a cleaning assembly is slidably installed on the guide frame. According to the device, the liquid collecting shell is installed on the upper end face of the equipment box, the clamping plates are fixedly installed in the liquid collecting shell, the molybdenum substrates can be stably cleaned by being placed on the clamping plates during cleaning machining, and during cleaning, the cleaning brush roller is driven by the driving motor to stably clean the surfaces of the molybdenum substrates under the action of the electric cylinder; and after cleaning is completed, the spraying pipe set is matched with a water pump for flushing.

The utility model discloses an industrial oil mist purifier which comprises a box body, an air draft module and an oil removal module, the air draft module and the oil removal module are arranged in the box body, an air inlet cavity, a separation cavity and a fan cavity which are sequentially connected are arranged in the box body, and the area of the air inlet cavity, the area of the separation cavity and the area of the fan cavity which are sequentially connected are arranged in the box body in a separated mode. The fan can be installed in the fan cavity in a built-in mode, the oil smoke purifier can be installed in the separation cavity in a built-in mode, equivalently, the air draft function and the oil removal function are integrated in the same box body, industrial oil mist can enter the box body through the air draft opening under driving of the fan, and liquid oil dirt is separated after treatment of the oil removal module; and the residual gas can be directly exhausted to the outside through the exhaust port, so that the effect of integrating functional modules for purifying the industrial oil mist is realized, and the purifier can realize the effects of smaller occupied area, more compact structure and more convenience in installation in design.

The invention discloses a supervision system and method for industrial oleic acid production, and the system comprises a raw material reaction regulation and control module, a real-time parameter collection module, a phase equilibrium analysis module, a data intelligent reasoning module, a cloud centralized management module and a process dynamic adjustment module which are connected through an industrial data transmission protocol, an encrypted data channel and the like to form a complete closed-loop link. The raw material reaction regulation and control module sets reaction initial parameters, the real-time parameter acquisition module continuously captures data such as temperature and oleic acid concentration in a reaction kettle, the phase equilibrium analysis module combines a thermodynamic model to calculate and obtain phase component parameters, and the data intelligent reasoning module complements the parameters and deduces an abnormal trend based on an omission-Bayesian reasoning model. The cloud centralized management module synchronizes data with a related platform, and the process dynamic adjustment module performs stepped correction on the stirring rate and the like. The system realizes coherent operation of parameter acquisition, analysis, reasoning, management and adjustment through cooperation of all the modules, and improves the stability of oleic acid production and the product quality.

This invention proposes a multi-frequency electromagnetic feature fusion method for abrasive particle identification, involving signal processing, sensor information fusion, and intelligent monitoring of mechanical conditions. It solves the problems of measurement distortion caused by hardware parasitic parameter coupling, the inability to directly solve the highly nonlinear time-harmonic field model analytically, and the poor convergence of conventional optimization algorithms leading to misjudgment of abrasive particle parameters in existing abrasive particle identification methods. This invention constructs a forward analytical model of the time-harmonic field and a nonlinear objective function, and utilizes the Levenberg-Marquardt (LM) optimization algorithm to jointly invert and extract the equivalent diameter, conductivity, and relative permeability of unknown metallic abrasive particles in a multi-dimensional parameter space. This invention can accurately decouple the equivalent diameter, conductivity, and permeability of abrasive particles, accurately distinguish materials, and the LM algorithm converges quickly and does not diverge, achieving millisecond-level inversion, meeting the high precision and real-time requirements of online monitoring of industrial oil.

The utility model relates to an environment-friendly industrial lampblack collecting device, and belongs to the technical field of industrial lampblack collection. According to the technical scheme, the device comprises a dust cover (1), a supporting framework (2), a stainless steel wire mesh (3), an industrial oil fume collecting barrel (4), an oil fume inlet pipeline (6), an oil product discharge pipeline (8) and an oil level indicator (12), the dust cover (1) is arranged at the top of the industrial oil fume collecting barrel (4), the bottom of the industrial oil fume collecting barrel (4) is connected with the oil product discharge pipeline (8), the stainless steel wire mesh (3) is fixed in the industrial oil fume collecting barrel (4), and the oil level indicator (12) is arranged on the supporting framework (2). The stainless steel wire mesh (3) is conical, the oil fume inlet pipeline (6) is connected to the barrel wall of the industrial oil fume collecting barrel (4), and the industrial oil fume collecting barrel (4) is provided with an oil level gauge (12). The utility model has the beneficial effects that when industrial oil smoke is discharged, oil smoke fog drops can be prevented from dropping on the ground near the oil smoke discharge port to form a large amount of oil stains and pollute the environment.

This invention discloses a lightweight, high-ductility cement-based composite material made of phosphogypsum, belonging to the field of building materials technology. The high-ductility cement-based composite material of this invention comprises the following raw materials in parts by weight: 450-600 parts cement, 150-300 parts fly ash, 100-300 parts silica fume, 400-500 parts lightweight phosphogypsum aggregate, 200-300 parts elastic asphalt sand, 12-18 parts composite fiber, 60-90 parts steel fiber, 20-30 parts water-reducing agent, and 170-200 parts water. The preparation method of the elastic asphalt sand includes the following steps: screening waste asphalt concrete to obtain waste asphalt sand; washing the waste asphalt sand with an organic solvent, drying it, soaking it in industrial oil, and drying it to obtain elastic waste asphalt sand; adding the elastic waste asphalt sand to a mixed solution of water, a silane coupling agent, and anhydrous ethanol, reacting, filtering, and drying to obtain the elastic asphalt sand. The lightweight, high-ductility cement-based composite material of the present invention has the advantages of being lightweight, having low shrinkage, high tensile strength, and high impact strength.

The present invention relates to the technical field of frying machines, and discloses a high-efficiency and energy-saving large-scale industrial frying machine, comprising an equipment box, a frying box fixedly mounted on the top of the equipment box, a feeding mechanism provided on one side of the frying box, a main shaft rotatably mounted in the frying box, a transmission sleeve slidably sleeved on the surface of the main shaft, a plurality of storage drawers fixedly sleeved on the surface of the transmission sleeve, and a filter box fixedly mounted on one side of the frying box. The present invention can filter the oil residue in the frying oil by providing a filter box and two collecting boxes, and can scrape the oil residue on the surface of the filter plate by reciprocating sliding of a scraper, so that the oil path remains unobstructed. At the same time, the oil residue can be squeezed to squeeze out excess frying oil and flow it into the circulating oil path, thereby avoiding waste of frying oil. The oil residue is collected in a residue collection drawer for centralized processing, effectively preventing the oil residue from participating in the frying operation again and damaging the appearance and taste of the fried food, thereby improving the energy-saving effect of the equipment and the quality of the fried food.

The utility model discloses a self-driven river garbage blocking and oil stain adsorption device, which relates to the field of river pollution treatment and comprises a paddle, a gear disc, a sponge fixing grid ring, a floating disc, a nut and a fixing rod. The gear disc, the sponge fixing grid ring and the floating disc are sequentially and fixedly arranged on the rod wall of the fixing rod from bottom to top, the position, located in the sponge fixing grid ring, of the rod wall of the fixing rod is provided with sponge capable of adsorbing oil dirt, and the upper end of the fixing rod is provided with threads matched with the nut. The number of the fixing rods is multiple, and the same linking lock chain is arranged at the upper ends of the multiple fixing rods. The floating garbage in the river can be effectively intercepted and collected, industrial oil stains are adsorbed, the negative influence of the industrial oil stains on a river ecosystem is reduced, the safety of water resources is protected, and green sustainable development is promoted.

The application discloses an industrial oil fume purification device for printing and dyeing processing and a purification method thereof, and relates to the technical field of waste gas pollutant purification, which comprises a purification tower body, and a purification separation assembly is arranged in the purification tower body; a high-voltage electrostatic field is formed through cooperation between an anode part and a cathode part; the anode part comprises an anode dust collecting pipe one and a horizontal protrusion one, the horizontal protrusion one is uniformly fixed and assembled to the inner side wall of the anode dust collecting pipe one, a wavy inner plate is fixedly assembled between the horizontal protrusion one, the horizontal protrusion one and the wavy inner plate cooperatively form a concave-convex continuous arc-shaped adsorption surface, the actual adsorption contact area of the pollutants is significantly expanded, compared with a smooth inner wall, the contact probability of the charged pollutants and the anode wall surface is greatly improved, and the adsorption efficiency is obviously enhanced; meanwhile, the lower half section of the anode dust collecting pipe one has a larger radial radius than the upper half section, the working condition that the waste gas is from bottom to top and the lower part has a higher pollutant concentration is matched, and high-concentration pollutants are preferentially concentrated and adsorbed in the lower part.

This invention provides a hot water washing system for oily sludge that integrates a twin-helix mixer and a disc centrifuge. The system includes a feeding unit, a twin-helix mixing unit, and a disc centrifugal separation unit. The feeding unit feeds material into the twin-helix mixing unit. The inlet of the disc centrifugal separation unit is connected to the outlet of the twin-helix mixing unit via a feed pump. The disc centrifugal separation unit centrifuges and separates the oily sludge treated by the twin-helix mixing unit. The twin-helix mixing unit achieves efficient convective mixing of oily sludge with hot water and chemicals. The disc centrifugal separation unit enables rapid separation of the oil-water-sludge three phases. Simultaneously, a temperature control unit can regulate the material temperature within the mixing unit in real time, and a chemical addition unit precisely proportions the cleaning agents. This highly integrated system improves mixing uniformity by 20%-30% and separation efficiency by 15%-25% compared to conventional equipment, making it suitable for the efficient and harmless treatment of various types of industrial oily sludge.

The utility model relates to the technical field of industrial gas treatment, in particular to an industrial oil gas recovery emptying device with a multistage filtering structure, which comprises a tank body, two ends of the tank body are fixedly connected with sealing covers, one side of one sealing cover is fixedly connected with a gas inlet pipe, the top of the tank body is fixedly connected with an exhaust pipe, and the top of the exhaust pipe is fixedly connected with a gas pump. A multi-stage filtering assembly is fixedly mounted in the tank body, and a collecting assembly is fixedly mounted at the bottom of the tank body. According to the utility model, the filter structure is very simple and quick to disassemble and assemble due to the quick disassembly design, the time and labor cost required for replacing or cleaning the filter screen can be greatly reduced, and the overall operation efficiency is improved.

The utility model provides a filter element for filtering high-viscosity industrial oil, which is sleeved on an air inlet pipe and comprises a plurality of layers of hollow filter paper rolled into a columnar shape, the supporting nets are respectively arranged on the inner side of each layer of filter paper to prevent the filter paper from being dispersed by grease; the upper cover plate and the lower cover plate are symmetrically arranged at the upper end and the lower end of the filter paper on the outermost layer and are used for fastening the filter paper on the supporting net. The high-concentration industrial oil filtering efficiency can be improved.

This application belongs to the field of environmental science and water treatment technology, and specifically relates to a PLA-Ni@MOF composite membrane, its preparation method, and its application. The PLA-Ni@MOF composite membrane has a three-level hierarchical composite structure, including: a porous polylactic acid (PLA) substrate membrane constructed by 3D printing, a nickel layer disposed on the surface of the PLA substrate membrane, and a ZIF-8 nanoparticle layer disposed on the surface of the nickel layer; the nickel layer is located between the PLA substrate membrane and the ZIF-8 nanoparticle layer. This PLA-Ni@MOF composite membrane has a three-level hierarchical composite structure of "PLA substrate membrane-nickel coating-ZIF-8 particle layer", which is structurally stable, has excellent performance, good mechanical strength and acid and alkali resistance, and is suitable for large-scale industrial oil-water separation.

This utility model relates to a highly efficient integrated oil demulsification and dehydration device, applicable to the field of oil pollution treatment equipment technology. The device includes a pretreatment unit, a demulsification unit, a separation unit, and an intelligent control system. The pretreatment unit removes solid impurities through a filter assembly and a buffer tank; the demulsification unit employs heating, a high-voltage electric field, and a chemical dosing system to collaboratively demulsify; the separation unit utilizes a spiral separator to achieve efficient oil-water stratification and includes a reflux mechanism. The controller dynamically adjusts parameters such as temperature, electric field strength, chemical dosage, and flow rate to adapt to oil pollution with different degrees of emulsification. This device solves the problems of low efficiency and high energy consumption in traditional demulsification and dehydration methods, achieving automated, low-energy, and highly stable oil pollution treatment, suitable for industrial oil pollution recovery.

1. The name of the design product: oil gas three-purpose combustion machine. 2. The use of the design product: for industrial oil gas three-purpose combustion machine. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.

The invention discloses porous metal organic hybrid glass for detecting the moisture content in industrial oil as well as a preparation method and application of the porous metal organic hybrid glass. The structural general formula of the hybrid glass is RExM (1-x) (NO3) y (C5H2N4) z, RE is at least one light-emitting rare earth ion of Tb < 3 + >, Eu < 3 + >, Sm < 3 + > and Dy < 3 + >, M is at least one non-light-emitting or weak-light-emitting low-cost cation of Zn < 2 + >, Mg < 2 + >, Ca < 2 + > and Al < 3 + >, and x is the mole fraction of RE in total cations and meets the condition that xlt is larger than or equal to 0.1; and in the formula, C5H2N4 is a 4, 5-dicyanoimidazole ligand. According to the material, a precursor solution is heated and evaporated, and micron-sized porous structures which are communicated with one another are formed in situ in the curing process. The porous structure greatly increases the specific surface area, so that the material has rapid and sensitive fluorescence response to water in oil. When the material is in contact with water-containing industrial oil, an energy transfer path from a ligand to rare earth ions in the material is damaged by water molecules, so that the rare earth characteristic fluorescence intensity is linearly quenched along with the increase of the water content. The material has the advantages of simplicity and convenience in preparation, controllable cost, quick response, high sensitivity, good selectivity, easiness in integration and the like, and is suitable for quick and online detection of trace moisture in industrial oil such as cutting oil, lubricating oil, hydraulic oil and the like.

The utility model relates to the field of filtering, in particular to an industrial oil fiber filter element filtering device which comprises an oil tank, a first filter element, a second filter element and a tension spring, a flange is welded to the top of the oil tank, a stud is fixedly installed in the middle of the bottom in the oil tank, and the stud is in threaded connection with a screw hole in the bottom of a bracket bottom plate. A bracket pipe is fixedly installed in the middle of the top of the bracket bottom plate, the inner wall of the lower end of the bracket pipe is fixedly connected with the two ends of a connecting column, the lower end of a tension spring is fixedly connected with an annular hook, the hook is connected to the outer side of the connecting column in a sleeving mode, a pull nut is fixedly installed at the top of the tension spring, and a lead screw is installed in the pull nut in a threaded mode. The tension spring is stretched, so that the elasticity of the tension spring enables the bracket bottom plate and the pressing plate to press the filter element to achieve a sealing effect, the operation is simple, the filter element can be directly taken out from the top of the oil tank by using a filter element taking-out device through single-hand pulling, the oil tank does not need to be laterally cut, the whole oil tank does not need to be taken down, and the operation is more convenient and simpler.