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Bending-resistant medium-voltage power cable
ActiveCN119230177AUniform stressImprove bending resistanceClimate change adaptationPower cables with screens/conductive layersPower cableClassical mechanics
The invention relates to the technical field of power cables, in particular to a bending-resistant medium-voltage power cable, which is characterized in that a plurality of cable cores are mounted in an outer sheath at equal angles in the circumferential direction, a plurality of supporting pads are uniformly mounted in the outer sheath at equal intervals, and a protective tube is mounted in the middle of the side end surface of each supporting pad; according to the invention, equal unloading of external bending stress and external impact pressure can be realized, and internal and external dual pressure relief can be realized, so that the stress borne by each part of the cable is more balanced, and the reliability of the cable is improved. The minimum bending radius of the cable can be dynamically regulated and controlled, comprehensive regulation and control of bending toughness and bending flexibility of the cable are achieved, the requirements of different use scenes are effectively considered, the application flexibility of the cable is improved, meanwhile, the effective utilization rate of load pressure in the cable can be improved, and the effective service life of the cable is prolonged.
Owner:HE BEI WU HONG XIAN LAN JI TUAN YOU XIAN GONG SI
Temperature control system of stainless steel welded steel pipe heat treatment furnace
ActiveCN119614853AGuaranteed temperature control accuracyExtend effective lifeFurnace typesHeat treatment process controlControl signalData acquisition
The invention discloses a temperature control system of a stainless steel welded steel pipe heat treatment furnace, which belongs to the technical field of stainless steel heat treatment, and specifically comprises a temperature sensor used for measuring the temperature in the heat treatment furnace in real time and outputting a temperature signal; the data acquisition module is used for converting the temperature signal into a digital signal; the controller is used for receiving the digital signal, calculating a temperature difference value between an actual temperature and a set temperature in the heat treatment furnace and calculating a heat difference value according to the temperature difference value, and the controller screens parameters representing the aging degree of the equipment and stores a prediction model of the parameter relationship between the heat deviation and the aging degree of the equipment; the controller calculates a heat deviation value of the heat treatment furnace according to the prediction model; the controller adjusts a control signal output to the heating device according to the heat deviation and adjusts the heating power of the heat treatment furnace; and the visual interface is used for setting the stainless steel process type and the heating power and displaying the real-time temperature and the system working state.
Owner:FUJIAN QINGSHAN STEEL PIPE CO LTD
Coating type water-oxygen barrier photovoltaic backboard
ActiveCN222451614UImprove insulation performanceImprove toughnessSynthetic resin layered productsCoatingsPolyethylene terephthalate glycolPolyethylene terephthalate
The utility model relates to the technical field of photovoltaic backboards, in particular to a coating type water-oxygen barrier photovoltaic backboard, which comprises a weather-proof layer, a first water-blocking layer, a base material, a second water-blocking layer, an oxygen-blocking layer and a water-absorbing layer which are sequentially stacked. The first waterproof layer and the second waterproof layer are made of a resin matrix and a layered silicate material; the base material is made of one or more of PET (polyethylene terephthalate), PE (polyethylene), BOPP (biaxially-oriented polypropylene) and PI (polyimide); the material of the oxygen barrier layer comprises a resin matrix and modified layered zirconium phosphate; and the water absorption layer is made of a water-absorbent resin matrix and a water absorbent. According to the coating type water-oxygen barrier photovoltaic backboard prepared by the utility model, the insulating flexible organic material and the layered inorganic material are compounded to form the coating, so that on one hand, the photovoltaic backboard has good barrier performance, and on the other hand, the backboard has good insulating performance and flexibility, is not easy to crack and is durable; and the service life of the photovoltaic backboard is greatly prolonged.
Owner:RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN +1
Short-fiber carbon-ceramic composite material brake disc and preparation method thereof
The invention provides a short-fiber carbon-ceramic composite material brake disc and a preparation method thereof, and belongs to the field of brake discs. The short-fiber carbon-ceramic composite material brake disc is prepared from the following raw materials in percentage by weight: 45-70% of modified short carbon fibers, 1-5% of boron carbide, 3-10% of an adhesive, 2-8% of kaolin, 2-5% of boron nitride, 2-5% of aluminum nitride, 2-6% of carbon black, 2-6% of graphite, 1-5% of a modified dispersant, 1-3% of sodium carboxymethyl cellulose, 1-3% of ethanolamine, 1-4% of sucrose fatty acid ester, 2-6% of nitrile rubber powder and 8-20% of an organic solvent. According to the short-fiber carbon-ceramic composite material brake disc and the preparation method thereof, the high temperature resistance and thermal shock resistance of the carbon-ceramic brake disc can be further improved while the manufacturing period is shortened, the production efficiency is improved and the production cost is reduced, the wear-resistant consistency of the carbon-ceramic brake disc is improved, and the effective service life of the carbon-ceramic brake disc is effectively prolonged.
Owner:SHANDONG JINGCHENG NEW MATERIAL TECHNOLOGY CO LTD
Waterborne epoxy micaceous iron coating as well as preparation method and application thereof
ActiveCN119192943AGood sealingImprove anti-settlingAnti-corrosive paintsEpoxy resin coatingsPolymer scienceEmulsion
The invention discloses a waterborne epoxy micaceous iron coating and a preparation method and application thereof, and relates to the technical field of anticorrosive paints.The waterborne epoxy micaceous iron coating comprises a component A and a component B. The component A and the component B are prepared from raw materials including the following components: the component A comprises waterborne epoxy emulsion, micaceous iron ash, an anti-settling agent, pigment filler and an auxiliary A; the component B comprises a waterborne epoxy curing agent; the component A is prepared from the following components in parts by weight: 100 parts of waterborne epoxy emulsion; 20-170 parts by weight of micaceous iron ash; 0.5-6 parts by weight of an anti-settling agent; 20-80 parts by weight of pigment and filler; 1-8 parts by weight of an auxiliary agent A; the component B comprises the following components in parts by weight: 100 parts of a waterborne epoxy curing agent; the weight ratio of the component A to the component B is (8-12): 1. The waterborne epoxy micaceous iron coating disclosed by the invention has the advantages of low VOC (Volatile Organic Compounds), relatively good sealing property, sagging prevention, sedimentation prevention, high adhesive force and the like.
Owner:MARINE CHEM RES INST CO LTD
Pollution prevention and treatment equipment for soil
PendingCN119634422Aincrease profitImprove utilizationSpadesContaminated soil reclamationMechanical engineeringPollution prevention
The invention relates to the technical field of soil pollution prevention and treatment, in particular to soil pollution prevention and treatment equipment which comprises a main machine frame, an auxiliary frame is installed at the bottom of the main machine frame, wheel shafts are rotationally installed at the bottoms of the two side ends of the main machine frame, and a hub is installed at one end of each wheel shaft. A cutter shaft is rotatably installed at the position, close to the wheel shaft, of the side end face of the auxiliary frame, a plurality of bent cutters are evenly installed on the outer curved surface of the cutter shaft at equal intervals, and a material box is installed in the middle of the top end of the auxiliary frame. The compatibility of equipment advancing work, soil crushing work and treating agent feeding work is improved, the effectiveness of the soil crushing work is enhanced, the soil crushing work is more balanced, the soil crushing blind area is avoided, synchronous injection and spraying of the treating agent are achieved, the permeation combination efficiency of the treating agent and soil is enhanced, and the treatment effect is improved. The effective utilization rate of the treating agent is improved.
Owner:HUANGHUAI UNIV
Preparation method of recycled aggregate pervious concrete
PendingCN119638288AImprove anti-clogging performanceExtend effective lifeSolid waste managementSlagSuperplasticizer
The invention relates to a preparation method of recycled aggregate pervious concrete, which comprises the following steps: sequentially crushing and screening waste concrete to obtain waste stone powder with the particle size of less than 0.075 mm and coarse aggregate with the particle size of 5-30 mm; the method comprises the following steps: washing and drying waste stone powder, adding glass powder and sodium hydroxide, and reacting to obtain a sodium silicate alkali activator; the preparation method comprises the following steps: firstly, adding coarse aggregate into a magnesium alginate aqueous solution, soaking until the coarse aggregate absorbs water to be saturated, sequentially adding sodium polyacrylate, mango butter and hydrogenated polyisobutene during soaking, stirring and mixing, then introducing carbon dioxide gas for carbonization, and carrying out post-treatment after carbonization is finished, so as to obtain recycled aggregate; and mixing the cement, the slag powder, the alkali activator, the machine-made sand, the recycled aggregate, the polycarboxylate superplasticizer and water to obtain the pervious concrete. The invention provides a preparation method for completely replacing natural coarse aggregate of the pervious concrete with the recycled aggregate, and the slag powder is used for replacing cement in a large proportion to serve as a cementing material, so that the high-strength and high-permeability all-waste aggregate green pervious concrete material can be prepared.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD
Arch frame mounting device of mountain tunnel
ActiveCN119435056Aquality improvementImprove efficiencyUnderground chambersTowing devicesMachineScrew thread
The invention discloses a mountain tunnel arch frame mounting device which comprises a frame vehicle, a screw rod is rotatably mounted at the bottom of the side end face of the frame vehicle, a base is mounted on the outer side of the screw rod through threads, a position adjusting seat is rotatably mounted on one side of the top end of the base, a machine base is slidably mounted at the top of the position adjusting seat, and guide rails are symmetrically mounted on the side end face of the position adjusting seat. According to the device, gravity can be converted into driving force, energy consumption in the arch frame installation process is reduced, the energy-saving and environment-friendly performance of the device is improved, the flexibility of installation work is improved, double alignment correction can be conducted on a side arch and an arc-shaped arch frame, and the device has the advantages of being simple in structure, convenient to use and high in practicability. The alignment accuracy and the fitting property with the side wall of the tunnel are improved, so that the assembling and connecting work of the side arch and the arc-shaped arch frame is more efficient, convenient and flexible, the safety and reliability of arch frame installation are fully improved, and the supporting effectiveness of the arch frame is improved.
Owner:SHANXI NO 3 CONSTR ENG
A down quilt with uniform filling
The utility model relates to down quilt technical field especially, relates to a kind of down quilt of even filling, including protective cover, the surface of the protective cover is equipped with horizontal and vertical staggered seam, the protective cover is divided into multiple independent square area with 30 centimeters side length by the seam;The top center of each square area is equipped with the opening for the filling tube of filling machine insertion, and the top of the protective cover is sewn with long strip edge bar.The utility model aims at the phenomenon of traditional protective cover because of the whole communication, the filling tube is moved inside and drives down migration, and the present application is divided into independent 30 centimeter side length square area by horizontal and vertical seam, each area is independently closed, and the flowing channel of down between area is blocked on physical structure, avoid the risk of down stringing during filling process and subsequent use, guarantee the stability of the filling amount of each area from the root.
Owner:ZHEJIANG SAMSUNG DOWN CO LTD
Cast-in-place pre-stressed anchor bearing structure and construction method thereof
PendingCN119531271AImprove structural strengthImprove corrosion resistanceBuilding repairsBridge erection/assemblyPre stressArchitectural engineering
The invention provides a cast-in-place pre-stressed anchor bed structure and a construction method thereof. The cast-in-place pre-stressed anchor bed structure comprises a to-be-reinforced structure, a plurality of anchor bolts and a cast-in-place anchor bed. Wherein a local surface protection layer of the structure is peeled off to expose the reinforcing steel bars and form anchoring grooves, the anchor bolts are distributed at intervals and implanted into the bottoms of the anchoring grooves from the sides of the reinforcing steel bars, the cast-in-place anchor seats are poured into the anchoring grooves and protrude out of the surface of the structure, and the cast-in-place anchor seats are provided with a plurality of tensioning channels in a penetrating mode in the tensioning direction. And each tensioning channel is used for penetrating a tensioning screw rod. According to the cast-in-place pre-stressed anchor bed structure and the construction method thereof, accurate punching is facilitated, a steel bar structure in a building is prevented from being damaged during punching and steel bar planting, the cast-in-place anchor bed and the building are combined into a whole, the anchor bolts and the steel bars can be fixed into a whole, and therefore the strength and the anti-corrosion performance of the whole structure can be improved; and the reinforcing effect of the prestress tensioning system is further improved.
Owner:CARBON TECH CO LTD
Radio frequency switch switching reset adjustable driving device and radio frequency switch
The application relates to a radio frequency switch switching reset adjustable driving device and a radio frequency switch, and relates to the technical field of pulses. The device comprises a supporting base and an adjusting base arranged on the supporting base. The adjusting base can be moved along a first direction perpendicular to a mounting reference surface of the supporting base and along a second direction of a horizontal projection length direction of a channel switching plate. An elastic beryllium copper sheet is fixed on the adjusting base. A free end of the elastic beryllium copper sheet is used for abutting against a pin shaft on the channel switching plate. A locking mechanism is arranged between the supporting base and the adjusting base to lock the position of the adjusting base after displacement. Through independent movement of the adjusting base in the first and second directions, the contact height and the stress point position of the elastic beryllium copper sheet and the pin shaft can be respectively adjusted, so that the reset stroke and the rebound force are independently adjusted, and the defect that a traditional fixed reset spring cannot be adjusted is overcome.
Owner:SUZHOU LAIR MICROWAVE INC
An aerospace-terrestrial integration small watershed water pollution monitoring system
This invention belongs to the fields of water environment monitoring, watershed pollution simulation, and smart water management. Specifically, it provides an integrated air-space-ground small watershed water pollution monitoring system, comprising: an airborne monitoring module for collecting spatial distribution data of water quality across the entire small watershed; a ground-based monitoring module for collecting continuous temporal water quality and hydrological baseline data of the small watershed; a multi-source data management module for data processing; a model engine module for constructing and running a distributed hydrological and water quality mechanism model of the small watershed; an adaptive parameter optimization module for automatically calibrating and dynamically updating the parameters of the distributed hydrological and water quality mechanism model of the small watershed; an early warning and source tracing module for obtaining early warning and source tracing results; a long-term prediction module for obtaining water quality prediction results; and a visualization decision module for displaying early warning and source tracing results as well as water quality prediction results. This invention realizes the monitoring, early warning, source tracing, and long-term prediction of water pollution in small watersheds.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
A floor structure and combined structure residential system thereof
ActiveCN111173122BImprove mechanical performanceimprove integrityClimate change adaptationFloorsFloor slabArchitectural engineering
The present invention relates to a floor structure and a combined structure residential system, wherein the floor structure comprises a floor slab and a cantilever slab; a steel bar skeleton is arranged in the interval between two adjacent floor slabs; the bottom of the installation notch is vertically fixed with floor slab ring bars in sequence along the length direction of the floor slab splicing surface; the steel bar skeleton comprises connecting horizontal bars arranged along the length direction of the splicing surface and a plurality of connecting ring bars fixed to the connecting horizontal bars; the connecting ring bars are parallel to the floor slab ring bars; the connecting ring bars and the floor slab ring bars are cast with concrete; the floor slab and the cantilever slab are connected by anti-cold and hot bridge nodes. The structure of the present application greatly improves the on-site construction speed, reduces the construction difficulty, has a simple construction process, has no bars on the four sides of the prefabricated slab, is convenient for factory automated mass production, and greatly reduces the production cost; has good force-bearing performance, strong integrity, and the assembled integral structure has strong integrity. On-site assembly construction has high construction efficiency, and the dense rib structure greatly reduces the deadweight of the floor slab and the amount of concrete used, thereby reducing costs.
Owner:SHENZHEN YJY BUILDING TECH +2
Oilfield three-phase separation process and separation system
ActiveCN113694566BRealize room temperature dehydrationstable pHFatty/oily/floating substances removal devicesLiquid degasificationGas phaseWater treatment
The present invention discloses an oilfield three-phase separation process and separation system, belonging to the field of oilfield technology. The process includes the following steps: 1. Density difference separation, inputting oilfield produced liquid or oilfield sewage into a three-phase separator, under the action of density difference, oil and natural gas in the oilfield produced liquid or oilfield sewage float up, and water flows downward; 2. Gas flotation, introducing natural gas into the three-phase separator, and the natural gas floats tiny bubbles, oil droplets, and mechanical impurities during the rising process; 3. Gas phase circulation, collecting the natural gas gas phase discharged from the three-phase separator and removing carbon dioxide and hydrogen sulfide, and then using it as the input gas of step 2 for recycling. The present invention does not need to heat the oil well produced liquid or oily sewage in advance, and can be treated at room temperature. Through the invented process, the oil content of the sewage reaches the recharge standard, the pH of the water body is stabilized, and new scale is avoided while descaling, which provides convenience for subsequent water treatment.
Owner:KEMENG ENERGY (YANGZHOU) CO LTD
External heat dissipation device of photovoltaic inverter
ActiveCN224343588UUniform temperatureAffect operational stabilityPhotovoltaic energy generationCooling/ventilation/heating modificationsInductorHeat spreader
This utility model discloses an external heat dissipation device for a photovoltaic inverter, including an air duct cover over a back panel and a fan bracket disposed on the back panel within a first spacer. The fan bracket has several fans with air inlets facing a first inductor box heat sink. The air duct cover has a first air inlet corresponding to the first inductor box heat sink, a second air inlet corresponding to the second inductor box heat sink, a first air outlet corresponding to the end of the heat sink facing away from the first inductor box heat sink, and a second air outlet corresponding to the end of the third inductor box heat sink facing away from the second inductor box heat sink. This utility model meets the requirement of uniform heat dissipation, balances the inverter temperature, avoids excessively high local temperatures affecting the inverter's operational stability, and extends the inverter's effective lifespan. The internal fan cover design provides protection and creates a stable airflow channel, significantly improving heat dissipation performance.
Owner:SUZHOU HYPONTECH CO LTD
Automobile charging head taking and placing device
InactiveCN119099389AExtend effective lifeTo achieve the purpose of cleaningCharging stationsCleaning using gasesStructural engineeringMechanical engineering
The invention relates to the technical field of automobile charging piles, in particular to an automobile charging head taking and placing device which comprises a box body. A second round hole and a first round hole are formed in the two sides of the box body respectively. A mounting mechanism for mounting a charging cable is arranged in the box body; a charging gun storage assembly is fixedly installed on the side face of the box body, and a cleaning assembly is arranged between the end, close to the box body, of the charging gun storage assembly and the box body. The top end and the bottom end of the interior of the box body are each fixedly provided with a set of air blowing assembly in transmission connection with the mounting mechanism, and the air outlet ends of the air blowing assemblies are fixedly connected with the cleaning assembly in a through mode. Through cooperative arrangement of the box body, the mounting mechanism and the charging gun storage assembly, the charging cable and the charging gun can be sealed and stored in a non-charging state, and through transmission connection between the air blowing assembly and the mounting mechanism, air can be automatically stored in the paying-off process; and in the take-up process, stored air is guided into the cleaning assembly, and the purpose of cleaning the charging cable is achieved.
Owner:SHANGQIU COLLEGE +1
Glaucoma drainage device
The application discloses a glaucoma drainage device and belongs to the technical field of medical devices. The glaucoma drainage device comprises a drainage sheet, the inside of which is a cavity structure, the drainage sheet is divided into a left cavity and a right cavity through a first partition plate, the upper surface of the left cavity is provided with a drainage hole, and the first partition plate is provided with a drainage opening; a drainage assembly is in communication with the inside of the drainage sheet through a connecting hole provided on the drainage sheet; and a fixing mechanism is arranged on the drainage sheet and used for fixing the drainage sheet and the drainage assembly. The glaucoma drainage device can fix the drainage assembly and the drainage sheet of the device through a mechanical fixing structure, avoids the problems of the suture fixation of the drainage device in the prior art, simplifies the operation process, shortens the operation time, reduces the complications caused by the suture foreign matter, and improves the fixing reliability and safety.
Owner:西安市人民医院(西安市第四医院)
Curtain upper beam
ActiveCN224187464UEasy to installEasy to disassembleLight protection screensMechanical engineeringPhysics
Owner:ZHEJIANG YIANO SHADING TECH CO LTD
Manufacturing equipment for greening ecological bricks made of construction waste
ActiveCN119188964AScientific and reasonable structureeasy to useFeeding arrangmentsAuxillary shaping apparatusCompression moldingEnvironmental resource management
The invention discloses manufacturing equipment for greening ecological bricks from construction waste, and relates to the technical field of ecological brick manufacturing, an outer mold shell is slidably mounted at the top of a support, an inner mold base is slidably mounted on the side end face of the outer mold shell in an embedded mode, and a material barrel is mounted at the position, located at the top of the outer mold shell, of the top end of the support; according to the pressure feeding and shaping device for the raw material slurry, the sufficiency and effectiveness of the pressing pressure of the raw material slurry can be effectively guaranteed, stable pressure support can be quickly provided for the raw material slurry in the pressure feeding and shaping process of the raw material slurry, and the pressure feeding and shaping efficiency of the raw material slurry is improved. The compression molding device has the advantages that the compression molding efficiency is guaranteed, the stiffness of rigid extrusion can be avoided by fully utilizing the elasticity of gas-liquid transmission, the stress of raw material slurry is more balanced and stable, the compression dead angle can be effectively avoided, the output specification of the ecological bricks is more standard, and the subsequent use convenience, flexibility and safety of the produced ecological bricks are improved.
Owner:GUIZHOU UNIV
Gas water heater with novel structure
PendingCN119665456AExtend effective lifeExtended service lifeFluid heatersIndirect heat exchangersCombustion chamberMechanical engineering
The invention relates to the technical field of gas water heaters, in particular to a gas water heater with a novel structure, which comprises a shell, a combustion chamber is arranged in the shell, a heat exchanger is arranged above the combustion chamber, the water inlet end of the heat exchanger is communicated with a water inlet pipe, and the water outlet end of the heat exchanger is communicated with a water outlet pipe; a water inlet connector and a water outlet connector are arranged on the lower portion of the shell, the end, away from the heat exchanger, of the water inlet pipe extends downwards and is communicated with the water inlet connector, the end, away from the heat exchanger, of the water outlet pipe extends downwards and is communicated with the water outlet connector, and gaps are reserved between the water inlet pipe and the outer wall of the combustion chamber and between the water outlet pipe and the outer wall of the combustion chamber. According to the invention, the problem that corrosion perforation is easy to occur near a welding spot between the coil pipe of the heat exchanger and the combustion chamber can be reduced.
Owner:CHENGDU QIANFENG ELECTRONICS CO LTD
Food processor with speed change function
ActiveCN222487180Ulow costreduce volumeToothed gearingsKitchen equipmentClutch controlElectric machinery
The utility model discloses a food processor with a speed change function, which comprises a main machine assembly, the main machine assembly comprises a main motor, a planetary reduction gear and a clutch device, the planetary reduction gear comprises a shell, a sun gear, an inner gear ring and a planet carrier, the sun gear, the inner gear ring and the planet carrier are arranged in the shell, and a planet gear is mounted on the planet carrier and meshed with the inner gear ring and the sun gear respectively. The sun gear is connected with a motor shaft of the main motor; the clutch device comprises a clutch driver, an upper clutch assembly and a lower clutch assembly, the upper clutch assembly and the lower clutch assembly are arranged on the inner side of the shell and connected with the inner gear ring, and the clutch driver is used for driving the upper clutch assembly or the lower clutch assembly so that the inner gear ring and a motor shaft of the main motor can rotate together or be fixed to the shell; therefore, the planet carrier correspondingly outputs two rotating speeds. Compared with the prior art that a double-speed-change module and a double-selection module are arranged, the cost of the whole machine is reduced, clutch control is simpler, and speed reduction output is more reliable.
Owner:JOYOUNG CO LTD
Novel water cap device for preventing screw drill from glue falling and pressure building
PendingCN119641242AExtend effective lifeavoid cloggingDrilling rodsBorehole drivesArchitectural engineeringStructural engineering
The invention belongs to the technical field of roller bits, and particularly relates to a novel water cap device for preventing rubber falling and pressure building of a screw drill, the novel water cap device comprises a cardan shaft shell, a water cap, a rotary cutter ring and a static cutter ring, the rotary cutter ring is fixed on the water cap, the static cutter ring is fixed on the cardan shaft shell, and the water cap is fixed on the cardan shaft shell. And the static cutter ring corresponds to the rotary cutter ring. Aiming at the problem of local falling of large rubber blocks, under the conditions that the rubber of the motor falls off and power parameters are not greatly reduced, the water holes are prevented from being blocked by the large rubber blocks, working can be continued, the probability of pump building and drilling is reduced, the effective service life of the motor is further prolonged, and the cost is reduced.
Owner:天津立林石油机械有限公司
A rhein-modified amine curing agent and its preparation method, and a long-lasting anti-corrosion coating based on bulk rust conversion and its preparation method and application.
PendingCN122079799AHas the ability to transform rustImprove anti-corrosion performanceOrganic chemistryOrganic compound preparationMannich reactionHydroxy group
This invention discloses an emodin-modified amine curing agent and its preparation method, as well as a long-lasting anti-corrosion coating based on bulk rust conversion, its preparation method, and its application. It relates to the field of anti-corrosion coating technology. The preparation method of the emodin-modified amine curing agent of this invention includes: subjecting raw materials including 2-hydroxyemodin, formaldehyde, and 1,5-pentanediamine to a Mannich reaction to obtain the emodin-modified amine curing agent. The emodin-modified amine curing agent used in this invention has a certain rust conversion ability and forms a stable chelate with iron ions, eliminating the need for rust conversion agents and allowing direct application to corroded surfaces. By using a suitable resin and curing agent system ratio, this invention can prepare a high-performance, low-surface-treatment, long-lasting anti-corrosion coating based on bulk rust conversion, applicable to manually cleaned surfaces (St2 / St3, ISO 8501-1), old coatings, high-pressure water jetting, and wet sandblasting substrate surfaces.
Owner:MARINE CHEM RES INST CO LTD
An arch frame installation device for a mountain tunnel
The invention discloses an arch frame installation device for a mountain tunnel, comprising a frame carriage, a screw rod is rotatably installed at the bottom of the side end surface of the frame carriage, a base is installed on the outer side of the screw rod through a thread, an adjustment seat is rotatably installed on one side of the top of the base, a machine base is slidably installed on the top of the adjustment seat, a guide rail is symmetrically installed on the side end surface of the adjustment seat, and support ears are symmetrically installed at the bottom end of the machine base corresponding to the position of the guide rail, and the support ears are slidably connected to the guide rail. The invention can transform gravity into driving force, save energy consumption in the process of arch frame installation, improve the energy-saving and environmental protection performance of the device, and improve the flexibility of installation work, and can perform double alignment correction on the side arch and the arc arch frame, improve the alignment accuracy and the fit with the tunnel side wall, which not only makes the assembly and connection work of the side arch and the arc arch frame more efficient, convenient and flexible, but also fully improves the safety and reliability of the arch frame installation, and improves the support effectiveness of the arch frame.
Owner:SHANXI NO 3 CONSTR ENG
Aluminum etching solution, preparation method and application thereof
The application belongs to the technical field of etching liquid, and particularly relates to an aluminum etching liquid, a preparation method and application thereof. The aluminum etching liquid, with the total mass of the formula being 100%, comprises 50-70% of phosphoric acid, 6-11% of nitrate salt slow-release acid source, 3-8% of organic carboxylic acid buffer stabilizer, 1-4% of aluminum ion high-efficiency complexing agent, 0.5-3% of etching accelerator, 0.1-1.5% of anionic surfactant, and the balance of water. The aluminum etching liquid provided by the application has good etching life and etching stability, can greatly reduce the treatment amount of waste liquid and the replacement frequency of fresh tank liquid, does not need to monitor and supplement nitric acid or acetic acid in the whole life cycle, significantly reduces the operation difficulty and maintenance cost, realizes convenient production, and ensures stable etching performance and greatly improves product yield due to stable tank liquid components.
Owner:HEFEI SINOPISE MATERIALS CO LTD
Suction unit assembly
The present invention discloses a rake and suction unit assembly, which is installed on the arm mechanism of a dredging robot. The rake and suction unit assembly comprises a rake and suction spiral mechanism and a coaxial linkage mechanism of the arm assembly arranged on both sides of the rake and suction spiral mechanism. Two ends of one side of the arm mechanism are rotatably connected to the two side positions of the rake and suction spiral mechanism through the coaxial linkage mechanism of the arm assembly respectively. The middle position of the top surface of the rake and suction spiral mechanism is rotatably connected to the piston end of the rake and suction head adjusting cylinder through the adjusting cylinder piston pin shaft. In view of the defects of existing equipment, the present invention designs a coaxially linked rake and suction unit assembly that can be adjusted with multiple degrees of freedom. The rake and suction spiral, the rake and suction spiral mechanism and the coaxial linkage mechanism of the arm assembly can make the rake and suction spiral move independently of each other according to the actual conditions in pipelines and culverts. While ensuring the dredging effect, the work efficiency is greatly improved, and there is no risk of hydraulic oil leakage. The present invention has good use effect and broad market prospects.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED +1
A gas monitoring device with quick-release filter element and back-flushing soot cleaning structure
The utility model relates to a kind of gas monitoring devices with quick-release filter core and back blow ash cleaning structure, belong to environmental monitoring equipment technical field, to solve the problem of existing gas monitoring device filter core easy to block, replacement maintenance difficulty.This gas monitoring device with quick-release filter core and back blow ash cleaning structure includes detector main body and filter component, gas sensor, main control board, main air inlet channel and back blow ash cleaning component are equipped in detector main body;Filter component is detachably connected in the air inlet end of detector main body by quick-release mechanism;The back blow ash cleaning component includes back blow air pump and gas path switch valve, can be under the control of main control board, realize the reverse blow ash cleaning of filter core in filter component.This gas monitoring device with quick-release filter core and back blow ash cleaning structure realizes the automatic maintenance of device by integrated back blow ash cleaning function, prolongs filter core life;Meanwhile, quick-release mechanism simplifies the replacement operation of filter core, significantly improves the reliability of monitoring and the convenience of maintenance.
Owner:ORDOS CARBON NEUTRAL RES & APPL CO LTD
A distributed power storage device
ActiveCN121416670BScientific and reasonable structureeasy to useSecondary cellsCell component detailsElectrical batteryPower grid
The application discloses a kind of distributed power energy storage devices, it is related to secondary battery technical field, including box, several hollow supports are evenly installed equidistantly in the box, several partition seats are evenly installed equidistantly in the side end surface of hollow support, cabinet is slidably installed in the top of partition seat, limit valve is embedded and installed in the bottom of cabinet side end surface, the end of limit valve is installed with spout, sliding plate is slidably installed in the inside of partition seat, the heat emitted in the process of the present application is driving force, forcibly realizes internal and external interactive heat exchange and internal circulation heat exchange, can effectively remove the heat generated in the process of device operation in time, realize the recycling of energy conversion and utilization, while realizing the efficiency of the base, improve the synchronism and high efficiency of heat exchange work, while prolonging the effective service life of battery, improve the popularization of device, flexible meet the multiple needs of user side cost reduction, power grid side stability and energy side low carbon.
Owner:ZHEJIANG BONA ENERGY DEV CO LTD
An industrial isolator health management method and system based on digital self-calibration
The application discloses an industrial isolator health management method and system based on digital self-calibration, and relates to the technical field of industrial automation, comprising: continuously collecting input end and output end analog signal values of the industrial isolator, calculating real-time transmission error to form an error sequence; establishing a trend model according to the error sequence to predict future transmission error values; when the current error is less than the precision threshold value and the predicted error is greater than the threshold value, calculating a preventive compensation value; determining a perception threshold value according to the output signal change rate, decomposing the compensation value into multiple step amounts, so that the output change generated by each step amount is less than the perception threshold value; and in multiple cycles, sequentially accumulating the step amounts and writing them into a digital compensation register, monitoring the output signal continuity after each writing, and completing the undisturbed online self-calibration. Through the predictive compensation and gradual calibration, the application realizes the online precision maintenance of the industrial isolator, and avoids the system interruption problem in the traditional offline calibration.
Owner:GUANGZHOU XITAI AUTOMATIZATION CONTROL EQUIP CO LTD
A flow path reconfigurable membrane filtration method
The application discloses a membrane filtration method with reconfigurable flow path, which is applied to a system comprising a first main pipe, a second main pipe, a third main pipe, a plurality of membrane filtration modules and a pipe switching module. Each membrane filtration module comprises a membrane group, a first branch pipe, a second branch pipe and a third branch pipe, one of the first branch pipe and the second branch pipe is a feed branch pipe, the other is a discharge branch pipe, and the permeate is discharged from the third branch pipe. The pipe switching module comprises a first switching module arranged between the first main pipe and the first branch pipe, the second branch pipe of each membrane filtration module, and a second switching module arranged between the second main pipe and the first branch pipe, the second branch pipe of each membrane filtration module, and the third branch pipe of each module is communicated with the third main pipe. The method switches the filtration direction of the membrane filtration module by controlling the first switching module and the second switching module, so that the plurality of membrane filtration modules operate in parallel mode, series mode or mixed mode, and dynamic adjustment of the membrane filtration method is realized.
Owner:JIANGSU BANGTEC ENVIRONMENTAL SCI TECH CO LTD