48results about How to "Guaranteed long-term operation" patented technology

The invention discloses a method for realizing carbon dioxide emission reduction in a catalyst regeneration process, regenerated flue gas is subjected to dust removal and pressure reduction to obtain low-pressure flue gas, the low-pressure flue gas is divided into a first flue gas material flow and a second flue gas material flow, the first flue gas material flow is subjected to heat exchange, denitration and desulfurization dust removal treatment to obtain desulfurized flue gas, and the desulfurized flue gas is subjected to heat exchange, denitration and desulfurization dust removal treatment to obtain a second flue gas material flow; water vapor in the desulfurized flue gas is removed to obtain low-humidity flue gas, part of the low-humidity flue gas serves as circulating flue gas to participate in catalyst regeneration, part of the low-humidity flue gas and hydrogen are subjected to a combustion reaction, deoxidized flue gas is obtained, and high-concentration carbon dioxide is obtained after the deoxidized flue gas is dehydrated; the second flue gas material flow is subjected to heat exchange with the circulating flue gas or is returned together with the circulating flue gas to participate in catalyst regeneration or is mixed with the first flue gas material flow in the denitration process, and heat exchange, desulfurization and dust removal are continued to obtain desulfurized flue gas. The method solves the problems of large total carbon dioxide emission, low carbon dioxide concentration and high trapping cost of a hydrocarbon processing device in the prior art.

The invention relates to a method for preparing C9 petroleum hydrogenated resin through hydrogenation in a loop reactor and application. Comprising the following steps: S1, rectifying and cutting ethylene cracking C9 to obtain a fraction with a distillation range of 80-230 DEG C, and carrying out polymerization reaction to obtain a polymerization solution; s2, carrying out reduced pressure rectification on the polymerization liquid to obtain a resin liquid A; s3, dissolving the resin liquid A with a solvent, adding an adsorbent for treatment, and filtering to obtain a resin liquid B; s4, adding the resin liquid B into a loop hydrogenation reactor loaded with a catalyst, and carrying out hydrogenation reaction on the resin liquid B and hydrogen to obtain resin liquid C; and S4, rectifying the resin liquid C to obtain the product. A loop hydrogenation technology is adopted, the process is simple, catalyst loading and consumption are lower, selectivity is higher, a reactor is smaller, heat transfer capacity is very high, and the obtained hydrogenated resin is excellent in performance and has excellent compatibility with styrene elastomers such as SBS and SIS.

The invention discloses a double-biological-membrane sewage treatment process for deep nitrogen and phosphorus removal coupled sludge reduction, and belongs to the technical field of sewage treatment. The process is composed of an anoxic biofilm reaction tank, an aerobic biofilm reaction tank and an iron autotrophic denitrification biofilter, and efficient nitrogen and phosphorus removal is performed on sewage through the double-biofilm sewage treatment process. Nitrogen and phosphorus removal and sludge in-situ reduction are mainly carried out in the front-end biological membrane reaction tank, and deep nitrogen and phosphorus removal is mainly carried out in the iron autotrophic denitrification biological filter tank. And the residual sludge is predded by using a protozoon / metazoon food chain of the aerobic biological membrane reaction tank, so that the effect of zero generation of the residual sludge is achieved. The concentration of iron ions is changed by adjusting the reflux ratio of iron-ion-containing reflux liquid generated by the iron autotrophic denitrification biofilter, so that the number and community structures of micro-organisms are effectively controlled, the control on sludge predation is further achieved, and the sludge reduction effect is improved. The process is obvious in effect, can stably operate for a long time and is suitable for engineering application.

The utility model discloses a vehicle charging socket, which comprises a socket main body, a charging port is arranged on the socket main body, a plurality of lead jacks are arranged in the charging port, the charging port is used for being butted with a charging plug, a sliding piece and a protection door are arranged in the socket main body, and the sliding piece is arranged on the socket main body in a sliding manner and is in transmission connection with the protection door; the protection door is arranged in the socket main body in a sliding manner so as to close or open the wire jacks in the sliding process; the socket main body is also provided with an overturning part, the overturning part is provided with a mistaken opening part, the protection door is provided with a limiting part, and the mistaken opening part stops the limiting part, so that the protection door is located at the position where the wire jacks are closed; the overturning part rotates to release the stopping state of the mistaken opening part and the limiting part, and then the sliding piece drives the protection door to slide to open the wire jack. The charging pile plug has the advantages that the protection door is arranged on the socket main body in a sliding manner, and the sliding piece directly drives the protection door to move, so that the problems that a spring for pulling a sealing baffle plate to open in the existing charging pile plug is easy to lose efficacy, the sealing baffle plate is opened in a fan shape, and a rotating shaft is easy to fatigue to cause damage can be effectively solved. The sliding part directly drives the protection door and controls the protection door to move, so that the driving force of the sliding part is more directly transmitted to the protection door, the weight of the protection door can be uniformly distributed on the socket main body, and the fault rate of the protection door is reduced.

The invention discloses a method for rapidly determining a leaked water cooler in an ethylene device by using an online detection and identification technology, and relates to the field of water cooler leakage monitoring. Comprising the following steps: selecting a process medium component of the water cooler as a characteristic component; constructing a fingerprint spectrogram database of the characteristic components; the circulating water of the water cooler is quantitatively and qualitatively analyzed in real time by utilizing an online detection technology, and a qualitative detection spectrogram result is compared and identified by utilizing an identification technology, so that the leaked water cooler is found. According to the method, different process media in different water coolers are utilized, the leaked process media in the circulating water and the water cooler characteristic component spectrogram database are compared and analyzed through the online detection and recognition technology, so that the water cooler with the leaked process media is locked, the leakage detection speed is high, the efficiency is high, the application range is wide, accurate information is provided for timely leaking stoppage, and the method is suitable for popularization and application. Deterioration of circulating cooling water quality is avoided, and normal operation of a production device is guaranteed.

The application discloses an alkylation device with a circulating refrigerant impurity removal function, which comprises an alkali washing assembly, a water washing assembly, a depropanizing tower and a deisobutane tower; the alkali washing assembly and the water washing assembly are connected in series on a circulating refrigerant feeding conveying pipe; a water washing assembly discharge port is in pipeline communication with a depropanizing tower feeding inlet; and a depropanizing tower lower discharge port is in pipeline communication with a deisobutane tower feeding inlet. The device can remove SO2, sulfides such as mercaptans and free water in the circulating refrigerant of the alkylation device, thereby effectively reducing the plugging frequency of the depropanizing tower, improving the propane removal efficiency of the alkylation device system, avoiding the increase of the content of propane in the system, maintaining a better alkylene ratio in the circulating material and improving the quality of the obtained isooctane product.

The application discloses a catalytic cracking slurry oil hydrogenation protective agent and a preparation method thereof. The hydrogenation protective agent comprises a carrier and hydrogenation active metal, wherein the carrier is alumina, the hydrogenation active metal comprises molybdenum oxide and cobalt oxide, and the alumina carrier has the following properties: the most probable pore diameter is 40-100 nm, preferably 50-70 nm, and the pore volume of the pore with a diameter of (the most probable pore diameter-30) nm to (the most probable pore diameter+30) nm accounts for more than 75% of the total pore volume. The hydrogenation protective agent adopts the alumina carrier with a suitable pore diameter and a suitable large-pore pore volume ratio, can eliminate the diffusion resistance of macromolecules in the process of adsorption on the surface of the catalyst and reaction of catalytic cracking slurry oil hydrogenation, and is beneficial to the hydrogenation reaction.

This invention discloses a method for hydrotreating catalytic cracking slurry. A fixed-bed hydrotreating process is employed, comprising: in the presence of hydrogen, the catalytic cracking slurry sequentially contacts a hydrotreating protectant, a hydrotreating transition catalyst, and a hydrodesulfurization catalyst to undergo a hydrotreating reaction, yielding hydrotreated oil. The hydrotreating protectant comprises an alumina support with a most probable pore size of 40–100 nm, molybdenum oxide, and cobalt oxide. The hydrotreating transition catalyst comprises an alumina support containing additives and MoO3 and CoO. The support has a bimodal pore size distribution, with smaller pores concentrated in the 10–40 nm range and larger pores concentrated in the 150–400 nm range. This method eliminates the diffusion resistance during the adsorption and reaction of large molecules on the catalyst surface during the hydrotreating of catalytic cracking slurry, increases the capacity for more deposits such as coke, extends the operating cycle of the unit, and facilitates hydrodesulfurization and other reactions. It also increases the content of tricyclic and tetracyclic aromatics in the hydrotreated oil, making it a high-quality feedstock for needle coke production.

The utility model relates to the technical field of automobile parts, and discloses a novel automobile shielding curtain which comprises a curtain box, the left side and the right side of the curtain box are both fixedly connected with shells, the inner walls of the front sides of the shells are slidably connected with push rods, grooves are formed in the shells, and the push rods are connected with the push rods in a sliding mode. A fixing plate is fixedly connected to the inner wall of the rear end of the groove, a first spring is arranged in the groove, a first rotating rod is rotationally connected to the outer portion of the pushing rod, sliding rods are rotationally connected to one end of the first rotating rod, a clamping block is fixedly connected to the rear end of the curtain box, and the two sliding rods are clamped with the clamping block. And a cleaning assembly is arranged in the curtain box. According to the utility model, the curtain box can be detached and can directly enter into the curtain box to inspect, maintain or replace the components, so that the maintenance difficulty caused by incapability of touching or approaching can be avoided, and the purpose of ensuring the long-term normal operation of the shielding curtain system is achieved.

The invention provides a robot control system for steel gate anti-corrosion operation and an operation method thereof, and the system comprises a chassis servo drive system which is controlled by a main control platform and drives a robot to move on the surface of a hydraulic steel gate; the sensor module is used for collecting running state data of the robot and sending the running state data to the main control platform; the operation module is installed on the robot and used for being controlled by the main control platform and executing steel gate anti-corrosion operation through an operation tool; the main control platform is electrically connected with the chassis servo driving system, the sensor module and the operation module for control; by means of the steel gate anti-corrosion robot, the robot can complete various anti-corrosion operations of a steel gate, and the comprehensive capacity and efficiency of anti-corrosion equipment are greatly improved from cleaning, detecting, repairing and spraying.

The application discloses a kind of intelligent maintenance decision methods of refining equipment, comprising the following steps: S110 obtains the real-time monitoring data of each measuring point of refining equipment;S120 input the real-time monitoring data obtained into early warning model, determine whether equipment appears early fault warning, if yes, then enter step S130, if no, then return to step S110;S130 obtains equipment health degree evaluation grade and equipment dynamic risk evaluation grade according to health degree evaluation model and dynamic risk evaluation model respectively;And S140 carries out maintenance decision according to the evaluation grade obtained.The application also discloses a kind of intelligent maintenance decision system of refining equipment, electronic equipment and storage medium.The application combines early warning model of equipment based on real-time monitoring data driving, health degree evaluation model based on failure possibility influence factor and data driving, and dynamic risk evaluation model based on health degree real-time evaluation and fault consequence, so that accurate maintenance decision can be made.

The utility model discloses a coupling fixing device for a flap valve matched with a through-wall reflux pump. The coupling fixing device is composed of a rotatable coupling guide rod, a top fixing sleeve, a bottom fixing sleeve, a lifting coupling frame, a rotating handle and other main components. When the flap valve needs to be overhauled, the coupling guide rod is rotated through the handle to enable the bottom fixing plate to be disengaged, the coupling frame is lifted through the steel wire rope at the moment, the coupling frame drives the flap valve cover to move upwards along the coupling guide rod to be separated from the water surface for overhauling, and the flap valve cover is lowered along the coupling guide rod after overhauling is completed. After the flap valve is lowered in place, the handle is rotated to enable the fixing plate connected with the bottom of the coupling guide rod to restore to the original position to fix the flap valve cover, and the flap valve enters a normal use state. The device is simple in structure and convenient to operate, and the purpose of regular maintenance of the flap valve is effectively achieved.

The invention relates to the field of lead-free soldering lugs, and particularly discloses an SAC-series lead-free soldering lug and a preparation method thereof. The SAC series lead-free soldering lug is prepared from the following raw materials in parts by mass: 20 to 40 parts of SAC305, 60 to 80 parts of micro-nano copper powder and 1 to 5 parts of Ag3Sn nanoparticles. According to the SAC-series lead-free soldering lug, the micro-nano copper powder and the Ag3Sn nanoparticles are added, and under the synergistic effect of the micro-nano copper powder and the Ag3Sn nanoparticles, the reliability of welding spots and the mechanical performance of the soldering lug are improved.

The invention relates to the technical field of radio frequency power amplifiers, in particular to a power amplifier adjusting circuit and method, a radio frequency front-end module and communication equipment, and the power amplifier adjusting circuit comprises a control module, a power amplifier module, a detector, a current detection module, a voltage detection module, a first digital adjusting module and a first charge pump, the detector is used for detecting a power signal; the current detection module and the voltage detection module are used for detecting a current signal and a voltage signal respectively; and the control module obtains the current efficiency of the power amplifier module according to the power signal, the current signal and the voltage signal, and adjusts the first digital adjustment module according to the current efficiency until the adjusted efficiency of the power amplifier module is not greater than the current efficiency of the power amplifier module. According to the invention, the energy loss is greatly reduced, the long-time operation of the radio frequency power device is ensured, the service life of the battery is prolonged to the greatest extent, and the maintenance and replacement cost is reduced.

The invention provides a polycrystalline silicon cold hydrogenation reaction system and a polycrystalline silicon cold hydrogenation reaction method. The polycrystalline silicon cold hydrogenation reaction system comprises a coarse separation tower, a cold hydrogenation reactor, a first preheater, a second preheater, an air cooler, a first cooler, a second cooler, a first heat exchanger and a third cooler. According to the reaction system, the consumption of a cooling medium can be reduced, the energy consumption of the reaction system is reduced, the production cost is saved, the contents of high-boiling residues and metal chlorides in silicon tetrachloride laterally collected by the coarse separation tower can be reduced, the corrosion to equipment and pipelines of a cold hydrogenation reaction system is reduced, and the long-period operation of the cold hydrogenation reaction system is ensured.

The utility model discloses an anti-disproportionation reaction rectification transformation device used in polycrystalline silicon production, which comprises a mixer, a heater, an anti-disproportionation fixed bed reactor and a reaction rectification tower, the mixer receives dichlorosilane and liquid silicon tetrachloride and mixes the dichlorosilane and the liquid silicon tetrachloride to form a mixture, the mixer is connected with the heater, the heater heats the mixture, and the reaction rectification tower is connected with the anti-disproportionation fixed bed reactor. The method comprises the following steps of: heating a mixture, conveying the heated mixture to an anti-disproportionation fixed bed reactor, respectively connecting the anti-disproportionation fixed bed reactor with a heater and a reaction rectifying tower, carrying out anti-disproportionation reaction on the mixture in the anti-disproportionation fixed bed reactor under the action of a catalyst, connecting a tower body of the reaction rectifying tower to a mixer, and extracting trichlorosilane from the tower top of the reaction rectifying tower, silicon tetrachloride which does not participate in the anti-disproportionation reaction in the anti-disproportionation reaction is extracted from the tower body of the reactive distillation tower and is conveyed to the mixer to serve as a raw material again, and impurities generated in the reaction are discharged from the tower kettle of the reactive distillation tower. According to the device provided by the utility model, the safety and operability of the anti-disproportionation reaction are improved.

The utility model discloses a power transformation box fault monitoring device, and relates to the technical field of power transformation boxes. Inner walls of two sides of a box opening of a power transformation box are respectively provided with a chute arranged along the height direction of the power transformation box, and a horizontally arranged support rod is arranged between two corresponding chutes; a driving mechanism used for driving the supporting rod to reciprocate and ascend and descend along the sliding groove is arranged in the sliding groove. Infrared thermal imagers used for conducting thermal imaging scanning on the interior of the power transformation box along with reciprocating ascending and descending of the supporting rod are arranged on the upper portion of a rod body of the supporting rod. According to the utility model, through installing the infrared thermal imager capable of reciprocating lifting in the transformer box, convenient and efficient thermal imaging scanning can be carried out on cables and electric appliance switches in the transformer box, so that a worker can clearly and intuitively monitor the working state of electrical equipment according to image data obtained through thermal imaging scanning; and fault hidden dangers can be timely found.

The invention discloses an ecological photovoltaic power station in a desert region. The ecological photovoltaic power station comprises a photovoltaic array, an ecological protection layer, a water collection system and an automatic irrigation system. The photovoltaic array is arranged on the ground of the desert area and comprises a plurality of photovoltaic panels, the photovoltaic panels are used for absorbing solar energy and converting the solar energy into electric energy, the ecological protection layer is arranged on the ground below the photovoltaic panels, and the water collection system is used for collecting rainfall in the desert area and condensed water of the photovoltaic panels. The automatic irrigation system is connected with the water collection system and used for providing water for the ecological protection layer. According to the ecological photovoltaic power station in the desert region, land degradation can be prevented, the soil structure can be kept, water and soil loss can be reduced, and attraction and maintenance of biological diversity are facilitated. In addition, the ecological protection layer can also achieve a certain temperature adjustment effect, reduce the temperature around the photovoltaic panel, facilitate the improvement of the working efficiency of the photovoltaic panel, prolong the service life of the photovoltaic panel, and ensure the long-term operation of the photovoltaic power station.

The present invention relates to a comprehensive intelligent anti-error real-time verification method supporting air wake-up, comprising: wireless access nodes and wireless aggregation nodes, wireless aggregation nodes and wireless sensors perform data interaction based on time division multiple access technology, and when a specific group of wireless sensors needs to be awakened, time division multiplexing is used to multiplex the control and response parts of a communication cycle downlink channel into a sending wake-up sequence; the wireless sensor automatically wakes up from a sleep state in a short period, and opens a smaller window to monitor the signal after awakening, and if the monitored signal is a wake-up sequence, data is uploaded and a response is waited. The present invention also discloses a comprehensive intelligent anti-error real-time verification system supporting air wake-up. The present invention introduces air wake-up technology to support real-time query, which improves the real-time performance of anti-error verification and thus enhances security; the air wake-up technology used in the present invention can greatly reduce the power consumption of the query mode to ensure long-term operation.

A method for preparing a hydrodemetallization catalyst, belonging to the field of catalyst preparation technology, includes the following steps: impregnating spherical carbon particles with an iron-containing solution and drying them; mixing the dried carbon particles uniformly with alumina sol and forming droplets; drying and calcining the formed products to obtain an iron-modified alumina support; immersing the iron-modified alumina support in an organic ammonium solution for a first and second hydrothermal treatment; drying and calcining the treated products to obtain a treated alumina support; impregnating the treated alumina support with an active component impregnation solution; drying and calcining the impregnated support to obtain the hydrodemetallization catalyst. The catalyst prepared by this method exhibits high dehydrogenation, Ni removal, and V removal activity, while also possessing high tolerance for metal impurities. This catalyst is particularly suitable for the hydrotreating of heavy oil with high Ni impurity content.

The invention relates to the field of gas separation, and discloses a modified porous microsphere, a preparation method thereof, a separation device and application of the modified porous microsphere and the separation device, and the modified porous microsphere comprises styrene-divinyl benzene-acrylonitrile copolymer with surface benzene ring sulfonation and halogenation modification. The preparation raw materials of the modified porous microspheres are simple and easy to obtain, a gas chromatography packed column prepared from the modified porous microspheres can effectively separate trace O2 and Ar in hydrogen for PEMFC, the analysis process can be completed within 3 min, qualitative and quantitative analysis can be carried out on a target object at the same time, the lowest detection limit is as low as 10 ppm, and the method is suitable for industrial production. And the long-acting operation of the PEMFC is effectively ensured.

The invention relates to the field of coke oven gas purification, and discloses a coke oven gas renewable adsorption desulfurization method which comprises the following steps: 1, directly introducing coke oven gas subjected to a chemical product purification and recovery section into a coke oven gas dry desulfurization tower; and 2, enabling the coke oven gas to sequentially pass through a pretreatment bed layer and a dry desulfurization agent bed layer, and obtaining clean coke oven gas after adsorption saturation. According to the method provided by the invention, high-efficiency desulfurization of the coke oven gas can be realized by using the dry desulfurization agent bed layer prepared from the active carbon with high adsorption capacity, so that hydrogen sulfide and other impurity components in the coke oven gas can be adsorbed and removed together, the adsorbent in the tower can be regenerated, the process flow is simplified, and the production cost is reduced. The equipment investment and the operation cost are effectively reduced, the long-period operation of the desulfurizing agent is ensured, the operation cost is low, and less sulfur-containing solid waste is generated.

The invention relates to the field of automobile steering wheel machining, and discloses an ultrasonic cleaning line for an automobile steering wheel, which comprises a supporting table, an ultrasonic cleaning machine and a line frame, the ultrasonic cleaning machine is fixedly arranged on the supporting table, the bottom end of the coil holder is fixed to the supporting table, an adjusting panel capable of moving in the length direction of the coil holder is installed on the coil holder, and a displacement assembly is installed on the adjusting panel. The steering wheel cleaning device has the following advantages and effects that when being cleaned, a steering wheel can be directly placed on the containing groove, orderly supplementing is carried out while cleaning is carried out, the steering wheel is directly moved through the contact frame, labor force of workers is saved in a semi-automatic mode, meanwhile, orderly operation can be guaranteed when the steering wheel is cleaned and taken out, and the machining efficiency is improved; the steering wheels can be freely moved up, down, left and right in multiple directions before and after cleaning, meanwhile, the multiple steering wheels can be cleaned and moved at a time, and the time of cleaning operation can be shortened.

According to the control method for the standard exceeding of the hydrogen concentration in the fuel cell stack shell and the matched control system, whether the hydrogen concentration exceeds the standard or not is actively diagnosed by detecting the hydrogen concentration in the fuel cell stack shell, and when the hydrogen concentration exceeds the standard, corresponding emergency treatment measures are taken to maintain system operation or normal starting, so that the safety of the fuel cell stack shell is ensured. The problem that the fuel cell is directly shut down or cannot be started when the hydrogen exceeds the standard and is inconvenient for a user to use is solved, and meanwhile, the running safety of a fuel cell system is improved.

The utility model relates to the technical field of petrochemical engineering, in particular to slurry bed residual oil hydrogenation fractionation equipment which comprises a slurry fractionating tower, a slurry feeding pipe and a hydrogen injection pipe are arranged on the side face of the slurry fractionating tower, the hydrogen injection pipe is located below the slurry feeding pipe, and a hydrogen distributor is arranged in the slurry fractionating tower. And the hydrogen distributor is connected with the hydrogen injection pipe. According to the utility model, hydrogen is uniformly sprayed out, is in uniform contact with materials and gradually rises, so that the temperature of the materials at the bottom of the slurry fractionating tower can be reduced, high-temperature dehydrogenation and polycondensation reaction can be relieved, meanwhile, the inner wall of the tower is purged, slurry coking in slurry reactor residual oil hydrogenation fractionating equipment can be inhibited, and stable and long-term operation of a slurry fractionating system is realized.

The application discloses a kind of stable column oil-gas separation control method, device, equipment and medium, belong to oil refining chemical industry field, control method includes: obtaining the product information of stable column;According to product information, it is judged whether product quality is qualified;If product quality is unqualified, then light gasoline is discharged from the intermediate material outlet of stable column;After light gasoline is discharged, control stable column carries out oil-gas separation processing, and obtains qualified liquefied gas and stable gasoline.The application increases the intermediate material outlet in the stable column, and the product is qualified without being used.If it cannot realize the qualification of liquefied gas and stable gasoline by appropriately increasing reflux ratio, the intermediate material outlet is used, and the light gasoline material is self-pressured to the main fractionating column top liquid separator or the fresh raw material buffer tank of catalytic cracking device, which reduces the difficulty of realizing the qualification of liquefied gas and stable gasoline, avoids the substantial benefit loss caused by the shutdown of catalytic cracking device, and ensures the long-period operation of stable column.

The utility model relates to gas-liquid phase separation equipment, and particularly discloses a novel gas-liquid cyclone separator which comprises a gas-liquid inlet pipe, a gas outlet pipe, a liquid-urine outlet pipe, a lower cone, a straight cylinder section and an upper seal head, the lower end of the upper sealing head is connected with the straight cylinder section, and the upper end of the upper sealing head is connected with the gas outlet pipe; and the lower end of the lower cone is connected with a urine outlet pipe. The straight cylinder section is divided into a liquid phase straight cylinder section and a gas phase straight cylinder section. The length of the gas straight tube section is less than or equal to that of the liquid-phase straight tube section. The upper end of the upper end socket is connected with a gas outlet pipe to form an upper end socket cone angle, and the upper end socket cone angle is 60-120 degrees. A vortex breaking device is arranged at the position, connected with the urine outlet pipe, of the lower cone. According to the utility model, the problem of wall attachment of the upper end socket of the two-stage evaporation separator in the evaporation process of the urea device is effectively solved, and the long-period operation of the equipment is ensured.

The invention discloses a supporting structure of wind turbine blades and wind power generation equipment, and relates to the technical field of supporting devices of the wind turbine blades, the supporting structure of the wind turbine blades comprises supporting columns and inhaul cables, the supporting columns are distributed between any two adjacent wind turbine blades, and each supporting column comprises a fixing part and a connecting part; the fixing part is arranged on the spindle, and the connecting part extends from the fixing part to the direction away from the spindle in the radial direction of the spindle. The inhaul cable is arranged outside the main shaft in a surrounding mode, and the inhaul cable is movably connected with the connecting part and the multiple connecting areas alternately, so that the inhaul cable forms a supporting ring for connecting the supporting column and the multiple wind turbine blades in series. By arranging a cooperative structure of the supporting columns and the inhaul cables, loads borne by the wind turbine blades can be effectively dispersed, dynamic changes of the wind turbine blades under the action of strong wind loads are adapted, stress concentration is reduced, and therefore the vibration and instability risks of the wind turbine blades are reduced.

The invention discloses an automatic pressure detection device for oil source recirculation. The automatic pressure detection device is characterized by comprising an oil source system, a circulating system, an injection system and a loading system, the circulating system comprises a hydraulic pump and a motor A, a pipeline filter assembly is arranged in a pipeline, and the circulating system is switched to a clean oil tank or a dirty oil tank through an electromagnetic reversing valve; the injection system comprises a driving device, a lead screw assembly is driven by the driving device, the lead screw assembly is linked with an oil cylinder, and the oil cylinder is connected with the loading system; and the loading system comprises a direct-acting overflow valve connected with the oil cylinder, and the direct-acting overflow valve is connected to a tested piece product interface through a one-way valve B and a high-pressure ball valve. High-precision, high-efficiency and high-stability automatic detection of the pressure gauge is realized, human eye recognition errors are solved, the labor cost is reduced, and the working efficiency is improved; through an automatic circulating system of an oil source, long-term operation of the device is guaranteed, oil source pollution is avoided, and resource waste is reduced.

The invention provides a FeM-N core-shell type catalyst and a preparation method and application thereof and relates to the technical field of petrochemical engineering, the FeM-N core-shell type catalyst comprises an iron-based catalyst serving as a core and an inorganic membrane serving as a shell layer, and the preparation method comprises the following steps that firstly, a metal precursor solution is subjected to a co-precipitation reaction in an alkaline environment, and a metal precursor solution is obtained; the preparation method comprises the following steps: preparing an iron-based metal core catalyst, performing in-situ coating on the iron-based metal core catalyst with an inorganic membrane with mesopores and / or micropores as a shell layer, and performing aging and crystallization to obtain the FeM-N core-shell type catalyst, according to the method, the FeM (at) N core-shell type catalyst with a controllable structure and capable of generating hydrocarbon and releasing heat can be obtained by adjusting the concentration and coating times of the inorganic membrane precursor. The FeM-N core-shell type catalyst can be used for thermal recovery of thickened oil to improve the recovery rate, and the temperature of an oil layer is increased through hydrocarbon generation and heat release, so that the viscosity of the thickened oil can be greatly reduced, and the purpose of effectively improving the recovery rate of the thickened oil is achieved.