31results about How to "Small impact on structure" patented technology

The invention provides a front end assembly, an endoscope and an endoscope hydraulic control system, and belongs to the technical field of endoscopes. The front end assembly comprises a front end base, a camera module and a pressure measuring mechanism, the camera module and the pressure measuring mechanism are both installed on the front end base, the pressure measuring mechanism comprises a piezochromic layer, the piezochromic layer is located at the circumferential position of the camera module, the piezochromic layer is made of a piezochromic material, and at least part of the piezochromic layer is located in an image acquisition area of the camera module. The front end seat is provided with the pressure measuring mechanism, and the pressure measuring mechanism is used for detecting the pressure around the front end assembly, so that the accuracy of pressure adjustment in a body cavity is improved, the hysteresis of pressure adjustment in the body cavity is reduced, the amplitude of pressure fluctuation in the body cavity is reduced, and the surgical risk is reduced; the pressure information in the body cavity is judged by observing the color information of the piezochromic layer in the image information collected by the camera module, an operator can adjust the pressure in the body cavity in time, and the overall operation is simple and convenient.

The invention discloses a shallow sea self-sinking and floating type section buoy based on a flexible solar material and a method thereof. The shallow sea self-sinking and floating type section buoy comprises a detection unit, and the detection unit comprises a shell assembly, a sensing assembly arranged at the top of the shell assembly, a hydraulic system arranged in the shell assembly and a control assembly arranged in the shell assembly; the hydraulic system comprises an inner oil bag, an outer oil bag, a first two-position two-way electromagnetic directional valve connected with the inner oil bag through a pipeline and a second two-position two-way electromagnetic directional valve connected with the inner oil bag through a pipeline, and the first two-position two-way electromagnetic directional valve is connected with a third two-position two-way electromagnetic directional valve. Efficient collection of solar energy is achieved, the gravity center of the buoy is adjusted by rotating the position of the mass block, so that the posture of the buoy is changed, the buoy body of the buoy rotates by 90 degrees and transversely floats on the sea surface, the influence of sea surface stormy waves on the buoy body is reduced, and the service life of the buoy is prolonged. And the daylighting area of the buoy body exposed out of the water surface is larger.

The utility model discloses a frying and baking machine, which belongs to the technical field of kitchen appliances, solves the problem of inaccurate temperature detection of a temperature controller, and adopts the technical scheme that the frying and baking machine mainly comprises a baking tray component, the baking tray component comprises a baking tray, a shell, a heating pipe and the temperature controller, the heating pipe is used for heating the baking tray, and a first heat-insulating cavity is formed between the baking tray and the shell; the heating pipe is located in the first cavity, the shell is provided with a heat-insulating second cavity, the cavity wall of the second cavity is provided with an avoiding through hole, the temperature controller is arranged in the second cavity and comprises a temperature sensing part, and the temperature sensing part penetrates through the avoiding through hole, extends into the first cavity and is attached to the baking tray. The baking tray is mainly used for enabling the temperature detected by the temperature controller to be closer to the actual temperature of the baking tray.

The invention discloses a sliding safety locking device, an automobile sliding rail mechanism and an automobile auxiliary fascia console module, which are used for locking the sliding rail mechanism, and comprise a locking plate rotationally arranged on an upper rail; a lock plate limiting assembly; the lock plate reset assembly is used for enabling the lock plate to be always in an unlocking state, the two lock arms are arranged to be far away from the lock hole of the lower rail in the unlocking state, and after the external acting force borne by the lock plate is relieved, the lock plate can be restored to the unlocking state; and when the motion acceleration of the upper rail reaches a set value, the lock plate can overcome the action of the lock plate reset assembly under the driving of inertia acting force and rotate, so that one lock arm can be inserted into the lock hole to lock the upper rail. When the vehicle accelerates or brakes suddenly, the lock plate rotates under the inertia acting force, one lock arm of the lock plate can be inserted into the lock hole, the upper rail is locked, and sliding of the upper rail and the auxiliary instrument panel arranged on the upper rail is limited.

The invention discloses an auxiliary fascia console sliding rail mechanism and an automobile auxiliary fascia console module. The auxiliary fascia console sliding rail mechanism comprises a lower rail; the upper rail is arranged on the lower rail and is in sliding fit with the lower rail; the sliding locking device is used for locking the upper rail on the lower rail and unlocking the upper rail when the upper rail needs to be moved; and the safety locking device is arranged on the upper rail and can drive the safety locking mechanism to act by utilizing inertia acting force generated on the safety locking mechanism when the motion acceleration of the upper rail reaches a set value, so that the upper rail is locked on the lower rail. The safety problem possibly existing in the using process of the sliding type automobile auxiliary instrument panel is solved, good reliability, stability and safety are achieved, the installation matching rigidity of the upper rail on the lower rail can be well guaranteed, and the sliding stability and smoothness of the automobile auxiliary instrument panel are guaranteed.

The invention provides a geotechnical mat with an electroosmosis function, and belongs to the technical field of geotechnical mats. The geotextile mat comprises a fixing rod arranged on a geotextile mat body; the electrodes are arranged on the geotechnical mat body, are fixed on the fixing rods, are used for providing an electroosmosis function for the geotechnical mat and are also used for serving as keels of the geotechnical mat to limit deformation of the geotechnical mat; the data collector is arranged on the geotechnical mat body and used for measuring the pressure and the water content of the tailings and transmitting the pressure and the water content to the power supply collecting device; and the potential probe is arranged on the data acquisition unit and is used for measuring current and voltage between the tailings and transmitting the current and voltage to the power supply acquisition device. The electrodes and the data collector are arranged on a traditional geotextile mat, and the power supply collecting device is matched, so that the geotextile mat has the electroosmosis function, the drainage strength can be adjusted according to the actual situation, and monitoring-drainage integration is achieved.

This application relates to a single-sided fixed suspension deep well water intake structure. This application is applicable to the field of water conservancy engineering technology. The technical problem to be solved by this application is: to provide a single-sided fixed suspension deep well water intake structure. The technical solution adopted in this application is: a single-sided fixed suspension deep well water intake structure, installed on the side wall of a structural load-bearing body, comprising: a horizontal support assembly, disposed on the side wall of the structural load-bearing body, arranged horizontally to form an installation platform; an inclined support assembly, one end connected to the side wall of the structural load-bearing body, and the other end connected to the bottom of the horizontal support assembly, capable of providing inclined support to the horizontal support assembly; and a deep well pump, installed on the installation platform via a fixing component, arranged vertically.

The utility model discloses a compressor heat dissipation structure with an oil receiving pool, which belongs to the technical field of compressor heat dissipation and comprises an air cylinder seat, the air cylinder seat comprises an air cylinder head and a motor mounting rack, the air cylinder head is positioned above the front side of the motor mounting rack, a piston hole for connecting a piston is formed in the air cylinder head, and the oil receiving pool is arranged in the piston hole. The air cylinder head comprises a cylinder face connecting part and a piston table body part, a pin groove is formed in the middle of the piston table body part, an oil storage part is arranged at the top of the piston table body part, an oil receiving pool with an upward opening is formed in the oil storage part, the bottom of the oil storage part is attached to the piston table body part, and the piston table body part is connected with the oil receiving pool. An oil leakage groove corresponding to the pin groove is formed in the bottom face of the oil storage piece, and a rear overflow opening is formed in the upper portion of the rear side of the oil storage piece; the cooling device has the advantages of being good in cooling effect, simple in structure and high in reliability.

The utility model discloses a height-adjustable fire hydrant which comprises a fire hydrant base, a fire hydrant lower branch pipe and a fire hydrant upper branch pipe, a lower branch pipe connector is formed on the periphery of the top end of the fire hydrant lower branch pipe, and the top end of the lower branch pipe connector abuts against two oppositely-arranged upper branch pipe connectors. The two upper branch pipe connectors are detachably connected, the two upper branch pipe connectors and the lower branch pipe connectors are detachably connected, clamping bosses are arranged on the inner walls of the two upper branch pipe connectors respectively, and branch pipe grooves are formed in the outer walls of the upper branch pipes of the fire hydrant; through up-down adjustment of the fire hydrant upper branch pipe in the fire hydrant lower branch pipe, the clamping boss can be clamped and matched with different branch pipe grooves, and the lower branch pipe connector and the upper branch pipe connector are connected and fixed, so that the height adjustment of the water outlet end of the fire hydrant is realized, the influence on the original structure of the fire hydrant is small, and the practicability is high. The fire hydrant of the same type can be applied to more scenes, the installation limitation of external conditions on the fire hydrant is eliminated, and therefore the flexibility and universality of the fire hydrant are improved.

The application provides a geotextile mat with electroosmosis function, and belongs to the technical field of geotextile mats.The application comprises a fixing rod arranged on a geotextile mat body;an electrode arranged on the geotextile mat body and fixed on the fixing rod, used for providing the geotextile mat with electroosmosis function, and also used for acting as a keel of the geotextile mat to limit deformation of the geotextile mat; a data collector arranged on the geotextile mat body, used for measuring tailing pressure and water content and transmitting to a power supply collecting device; and a potential measuring needle arranged on the data collector, used for measuring current and voltage between tailings and transmitting to the power supply collecting device.The application has the electroosmosis function by arranging the electrode and the data collector on the traditional geotextile mat and cooperating with the power supply collecting device, and can adjust the drainage intensity according to actual conditions, so that the monitoring-drainage integration is realized.

The invention relates to a movable detection device and method for the gauge of a heavy haul railway. A detection assembly a and / or a detection assembly b with the same structure are / is arranged below a frame body; walking wheel parts walking on the track parts are arranged on the two sides of the frame body. The detection assembly a and / or the detection assembly b comprise / comprises a transverse connecting part; moving devices are arranged at the two ends of the transverse connecting part; a fixing device is arranged on the moving device; a transceiver assembly is arranged on the fixing device; the transceiver assembly comprises a transceiver A and a transceiver B which are arranged at the two ends of the transverse connecting part and are matched correspondingly. The device is reasonable in design, compact in structure and convenient to use.

The utility model belongs to the field of electronic products, and discloses a rotating shaft, a shell of electronic equipment and the electronic equipment, the rotating shaft comprises a base, a lower connecting piece, an upper connecting piece and a rotating piece, and the base is provided with a first guide hole extending along the height direction; the lower connecting piece is arranged in the base and rotationally connected with the base, and the lower connecting piece is provided with a limiting shaft; the upper connecting piece is arranged in the base, the upper end of the upper connecting piece is rotationally connected with the lower connecting piece, a movable rotating shaft is arranged at the lower end of the upper connecting piece, and the movable rotating shaft is movably arranged in the first guide hole; one end of the rotating piece is rotationally connected with the upper connecting piece, the rotating piece is provided with a second guide hole extending in the length direction, and the limiting shaft is movably arranged in the second guide hole. When the rotating piece drives the upper connecting piece to rotate, the movable rotating shaft moves in the first guide hole, so that the position of the rotating connecting point of the rotating piece and the upper connecting piece is changed, the position of the rotating axis of the rotating piece is further changed, and the rotating angle of the cover body is increased.

The utility model discloses a detachable stiffening support used for a photovoltaic support. The photovoltaic support comprises an oblique beam. A plurality of purline supporting point positions are arranged on each oblique beam, a purline support is arranged at each purline supporting point position, and a purline is arranged on each purline support; a stiffening support is arranged at at least one purline supporting point; the stiffening support comprises a section of short thin-wall C-shaped steel with the outer contour matched with the inner contour of the oblique beam, the short thin-wall C-shaped steel comprises a C-shaped steel web, a C-shaped steel upper side plate and a C-shaped steel lower side plate, the C-shaped steel upper side plate and the C-shaped steel lower side plate are located on the upper side and the lower side of the C-shaped steel web respectively, and the short thin-wall C-shaped steel is tightly attached to the inner side of the oblique beam in a matched mode. A stiffening rib is arranged in the center of the short thin-wall C-shaped steel, and the stiffening rib is vertically connected with the C-shaped steel web, the C-shaped steel upper side plate and the C-shaped steel lower side plate; the short thin-wall C-shaped steel, the oblique beam, the purlin support and the purlin are installed and connected in a bolt mode. According to the scheme, the stability performance of the structure can be improved, and meanwhile the steel consumption of the structure is greatly reduced.

The invention discloses a belt-type oil pumping unit load-off safety protection device, and relates to a belt-type oil pumping unit load-off safety protection device, the belt-type oil pumping unit load-off safety protection device comprises a balance box, a frame, a brake block, a friction plate, a straightening wheel and a spring, a balance box is inserted into the frame, wedge grooves are symmetrically provided on both sides of the balance box, and two concave cavities are symmetrically provided on both sides of the balance box, brake blocks are clamped inside the two wedge grooves, and the two brake blocks are fixedly connected to the friction plate on one side adjacent to the frame by screws, in addition to utilizing the balance box and the frame, the invention only adds springs, brake blocks and friction plates, and does not have a complicated connecting rod transmission mechanism, thereby avoiding the problems of torque transmission and movement flexibility due to many parts, many hinge points, and easy rust at the hinges, so as to achieve the protection device with the characteristics of simple structure, flexible movement and higher braking efficiency.

The utility model discloses a wavelength-adjustable TOSA, and the TOSA comprises an emission unit which is used for completing the photoelectric conversion and guaranteeing the modulation and the quality of an optical carrier; the wavelength modulation unit at least comprises an optical fiber MZ interferometer and a temperature control assembly used for performing temperature control on the optical fiber MZ interferometer; and the driving circuit is used for amplifying an optical signal and can drive the transmitting unit and the temperature control assembly. The interference condition of the MZ interferometer is changed through the temperature control assembly, the purpose of wavelength modulation is achieved, only the composition of the coupling optical fiber needs to be finely adjusted structurally, meanwhile, the temperature control assembly is additionally arranged, and the influence on the overall structure of the module is small.

The invention discloses a detachable waterproof doorsill structure and a construction method thereof, the detachable waterproof doorsill structure comprises a pair of door frames embedded in walls on two sides and water stop plates hermetically inserted in the door frames, and gaps between the door frames and the walls are filled with waterproof sealant; the door frame comprises an outer protective plate and an inner protective plate which are oppositely arranged, the outer protective plate and the inner protective plate are connected together through a connecting plate, and the inner protective plate and the connecting plate are connected with a wall body through bolts; first sealing strips with hollow structures are symmetrically arranged on the inner side surfaces of each pair of outer protective plates and each pair of inner protective plates; lock holes are formed in the edges of the inner protection plate and the outer protection plate, and locking pieces used for fixing the water stop plate are inserted into the lock holes. The door frame is embedded in the wall and is in sealed connection with the wall, and the water stop plate is in sealed connection with the door frame, so that the waterproof performance is improved, and water seepage is avoided; the water stop plate and the door frame are inserted together and fixed through the locking piece, disassembly and assembly are easy and convenient, and attractiveness and elegance are achieved.

The invention provides a thermal barrier coating exhaust passage with an anti-tempering function and an installation method, and relates to the technical field of thermal barrier coatings and diesel engine exhaust passages, the thermal barrier coating exhaust passage comprises an exhaust passage body, the exhaust passage body is coated with a thermal barrier coating, and the thermal barrier coating comprises a first bonding layer, a ceramic layer and a second bonding layer from outside to inside; the first bonding layer and the second bonding layer are made of the same material, an exhaust passage heat exchanger is installed on the exhaust passage body, and a spiral static mixer is installed on the inner side of the exhaust passage body, the exhaust passage with a spiral mixing structure is designed, mixing of incomplete combustion tail gas can be effectively promoted, in addition, a heat exchange channel is arranged on the outer side of the exhaust passage, and the heat exchange efficiency is improved. According to the design, heat transferred to the exhaust passage from the high-temperature cylinder cover can be reduced, heat on the high-temperature wall surface of the exhaust passage can be taken away, and the heat exchange passage and the exhaust passage are combined, so that the temperature of the wall surface of the exhaust passage is effectively reduced, and meanwhile, the situation that the local gas concentration is too high is avoided.

The application provides a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, an isolation structure, a light-emitting functional layer, a first encapsulation layer and a color conversion layer. The isolation structure is arranged on one side of the substrate and has a plurality of opening structures. The light-emitting functional layer is arranged on one side of the substrate and comprises a plurality of light-emitting structures arranged in the plurality of isolated openings. The first encapsulation layer is arranged on the side, away from the substrate, of the light-emitting functional layer and comprises a plurality of encapsulation parts corresponding to the plurality of isolated openings. The color conversion layer is arranged on the side, away from the substrate, of the first encapsulation layer and comprises a plurality of color conversion structures. The projections of the plurality of color conversion structures on the substrate correspond to overlapping. Adjacent encapsulation parts are connected into an integrated structure.

This utility model discloses an auxiliary flipping mechanism for automotive parts inspection, relating to the field of automotive parts inspection technology. It includes a base assembly and a flipping frame. A driving component is horizontally mounted on the top of the base assembly, and movable columns are vertically mounted at both ends of the top of the driving component. The flipping frame is connected to one side of the middle section of the movable columns. This auxiliary flipping mechanism for automotive parts inspection utilizes a buffer post between the support frame and the clamping plate. Through its elastic telescopic structure, the entire flipping frame is translated under the drive of the movable columns and the driving component. When clamping and limiting the workpiece, it avoids excessive clamping that could cause unnecessary damage, thus providing structural protection. The structural cooperation of the driving component and the movable columns allows for flexible structural adjustments within a certain range based on the size of the workpiece, ensuring clamping stability and facilitating the inspection and flipping of automotive parts.

The invention belongs to the technical field of farmland cultivation, and particularly relates to a protective cultivation straw total returning raking and mixing method which comprises the steps that S1, deep scarification is conducted to break a plow pan; s2, the high-speed stubble cleaning harrow harrows the ground and mixes the ground with straw to S3, flat planting and sowing; s4, pressing after sowing. The method has the advantages that drought and waterlogging resistance is improved, soil fertility and grain productivity are improved due to full straw returning, damage to the soil structure is small, seeding quality is improved, and ridge bodies are tightened through pressing after seeding.

A railway segment prefabricated assembled beam end processing structure, the segment prefabricated assembled beam end segment is composed of a top plate, a web plate, and a bottom plate, the top plate is located at the top of the segment prefabricated assembled beam end segment, the web plate is located in the middle of the segment prefabricated assembled beam end segment, and the bottom plate is located at the bottom of the segment prefabricated assembled beam end segment, a top plate notch is provided in the middle of the top plate, an anchor is embedded in the top plate notch, cantilevers are provided on both sides of the top plate notch along the edge of the top plate, web plate notches are provided on both sides of the web plate, and the web plate notches are provided on both sides of the web plate. An embedded anchor is provided in the slot, a bottom plate slot is provided in the middle of the bottom plate, an embedded anchor is provided in the bottom plate slot, additional boots are provided on both sides of the bottom plate slot, a support is provided at the bottom of the bottom plate, and steel bundles are provided in the embedded anchors. The slot size opened in the above scheme is smaller, which has less impact on the structure and is not easy to crack after anchoring; the additional boot structure at the beam end can avoid excessive turning angle of the beam end and ensure the stiffness of the segmented prefabricated assembled beam; at the same time, after anchoring, a concave structure is formed in the middle of the beam end face for inspection and maintenance personnel to pass through.

The invention belongs to the field of preparation of aviation kerosene from biomass, and particularly relates to a process for efficiently synthesizing a biological aviation kerosene precursor and a catalyst regeneration method. According to the method, 2-methyl furan (2-MF) and ketone compounds (cyclohexanone, methyl isobutyl ketone and acetone) are dehydrated to efficiently synthesize the C13 or C16 biological aviation kerosene precursor (BAKP), and the C13 or C16 biological aviation kerosene precursor (BAKP) is synthesized by regulating and controlling the concentration of small molecule ketone substances in reaction raw materials, the reaction temperature and the use amount of a catalyst. The problem that the yield of BAKP is low due to side reaction caused by hydrolysis ring opening of 2-MF at present is solved; according to the invention, BAKP is prevented from being hydrolyzed into ketone to initiate polymerization reaction, the blockage of catalyst pore channels is relieved, and the deactivation rate of the catalyst is slowed down. The catalyst is regenerated by using a solvent cleaning and low-temperature heat treatment scheme, so that cyclic regeneration of the organic solid acidic resin catalyst is realized.

The utility model relates to an automatic blanking device for punch forming of a bearing outer ring, which is designed in a way that a blanking track is needed during stripping after a punching machine punches a bearing outer ring blank, so that processing errors caused by falling of materials onto a lower die are reduced, the influence of falling on the structure of the materials is reduced, and the collision of the blanking track is reduced. An automatic feeding device is used for feeding a lower die of the punching machine, and an automatic discharging device is used for discharging the machined bearing outer ring which falls off from a stripper plate of the punching machine; the automatic discharging device comprises a U-shaped discharging guide rail penetrating into the punching range of the punching machine, a feeding guide rail, a feeding guide rail, a feeding guide rail, a feeding guide rail and a feeding guide rail, and the feeding guide rail is provided with a long kidney-shaped hole matched with a die of the punching machine in size; a pair of guide grooves are formed in the bottom face of the discharging guide rail and used for insertion of the movable plate. The movable plate is arranged on the bottom surface of the blanking guide rail, is matched with the long kidney-shaped hole and is driven by a movable plate driving device; and the telescopic end of the movable plate driving device is in transmission with the movable plate.

The utility model discloses a hidden ladder box and a vehicle. According to the scheme, the hidden ladder box comprises a bottom plate; the cover plates are sequentially arranged on one side plate face of the bottom plate in the first direction, the length direction of the cover plates extends in the second direction, each cover plate comprises a supporting part and connecting parts arranged on the two opposite sides of the supporting part, each supporting part is provided with an opening facing the bottom plate, and the supporting parts and the bottom plate jointly define a containing space used for containing the hidden ladder body; the containing space extends and penetrates in the second direction, the two connecting parts are arranged on the two opposite sides of the opening, the connecting parts extend in the direction opposite to the bottom plate in the first direction, the connecting parts are attached to and welded to the bottom plate, and the welding positions of the connecting parts and the bottom plate are spaced from the supporting parts in the first direction. And meanwhile, the welding position of the connecting part and the bottom plate can be located outside the storage space, welding slag can be prevented from being formed in the storage space, and the drawing smoothness of the hidden ladder body is improved.

The invention provides a high-dispersion noble metal isodewaxing catalyst as well as a preparation method and application thereof, and the preparation method comprises the following steps: dissolving a noble metal precursor in a mixed solution of water, alcohols and ligands, and uniformly mixing to obtain a noble metal precursor solution; wherein the mass ratio of the water to the alcohols is (20-1): 1, and the molar ratio of the ligand to the noble metal atoms is (6-18): 1; and dipping the carrier particles in a noble metal precursor solution, and carrying out ultrasonic oscillation, drying and roasting in an air atmosphere to obtain the high-dispersion noble metal isodewaxing catalyst, wherein the total weight of the carrier particles is 100%, and the dosage of the noble metal is 0.1-0.6% by atomic mass. The noble metal in the high-dispersion noble metal isomerization dewaxing catalyst provided by the invention is high in dispersion degree, so that the high-dispersion noble metal isomerization dewaxing catalyst has relatively high isomerization dewaxing catalytic activity.

The present invention belongs to the technical field of washing machines, and discloses a washing machine and a control method, device, storage medium and computer program product thereof. The washing machine has an inner drum, and an electromagnetic device is arranged on the outer wall of the inner drum; the method comprises: after the washing machine is powered on, obtaining the weight of the clothes in the inner drum; determining the eccentricity value threshold of the inner drum according to the weight of the clothes in the inner drum, and controlling the inner drum to shake; obtaining the eccentricity value of the inner drum; determining whether the clothes in the inner drum contain foreign matter according to the eccentricity value of the inner drum and the eccentricity value threshold of the inner drum, combined with the power-on condition of the control electromagnetic device: if so, initiating a reminder message that the clothes in the inner drum contain foreign matter, and controlling the washing machine to suspend the execution of a preset washing program; otherwise, controlling the washing machine to execute the preset washing program. The scheme, by arranging an electromagnetic device on the outer wall of the inner drum of the washing machine and performing eccentricity detection on the inner drum to accurately determine whether the clothes contain foreign matter, has little impact on the structure of the washing machine and is low in cost.

The invention discloses a regeneration method of a biomass ethylene glycol refining catalyst and a biomass ethylene glycol hydrofining method.The regeneration method comprises the following steps that S1, the inactivated biomass ethylene glycol refining catalyst is placed in a solution containing inorganic acid, a chelating agent and a solvent to be aged, and an aged catalyst is obtained; s2, washing the aged catalyst with water, and drying in an inactive atmosphere to obtain a dried catalyst; and S3, reducing the dried catalyst to obtain the regenerated biomass ethylene glycol refining catalyst. According to the catalyst prepared by the method disclosed by the invention, the ultraviolet light transmittance of a biomass ethylene glycol product can be obviously improved, and the service life of the catalyst is obviously prolonged.

This utility model discloses a complete separation and collection system for rainwater and sewage on a coal wharf platform. The coal wharf platform is equipped with a clear water pool and a sewage pool below it. A drainage pipe is pre-embedded along the wheel sill of the platform, connecting to the clear water pool. The drainage pipe opening is fitted with an internal plug-type sealing cap, which is normally closed. A sewage ditch is provided on the platform, connecting to the sewage pool. A water-blocking ditch is also installed along the bank of the sewage ditch, containing an inflatable rubber water-blocking bag connected to an air pump. At the start of rainfall, the rubber water-blocking bag is not inflated, and the drainage pipe opening is normally closed. Initially, the coal wastewater flows into the sewage ditch. After 30 minutes, the rubber water-blocking bag is inflated, preventing subsequent rainwater from entering the ditch. Simultaneously, the internal plug-type sealing cap of the drainage pipe opening is opened, allowing subsequent rainwater to flow by gravity into the clear water pool via the drainage pipe. After the rainfall ends, the cap is closed, and the water-blocking bag is emptied, completing the complete separation and collection of initial coal wastewater and subsequent clean rainwater at the wharf.

This utility model discloses a chemical storage component and a water tank cleaning base station. The chemical storage component includes a storage chamber and a detection mechanism. The storage chamber stores the chemical, and the outlet allows the base station to supply the chemical to the water tank and / or cleaning equipment, meeting the need for adding chemical during water tank maintenance. The detection mechanism can detect the chemical level, solving the problem in existing technologies where users cannot know the chemical level in the base station in a timely manner. Users no longer need to spend time and effort checking the chemical level periodically, reducing maintenance costs. Moreover, it avoids situations where the water quality in the tank cannot be effectively adjusted due to the failure to detect the chemical depletion in time, ensuring the normal use and hygiene of the water tank.

The invention discloses an unpowered scattered material recovery belt conveyor, which relates to the technical field of belt conveyors, and comprises a conveying belt, a recovery belt, a support frame, a baffle plate, a tension roller and a guide hopper. The recovery belt is arranged below the conveying belt, the recovery belt is attached to the wave-shaped belt on the surface of the conveying belt, when the conveying belt conveys materials, the wave-shaped belt on the surface of the conveying belt can directly drive the recovery belt to move through friction force, and therefore direct driving of the recovery belt is achieved; the horizontal width of the recovery belt is larger than that of the conveying belt, so that scattered materials on the conveying belt can directly fall on the recovery belt and reach the position above the conveying belt again under the guidance of the recovery belt, and a set of power mechanism does not need to be additionally arranged while the scattered materials of the belt conveyor are recovered. And the recovery belt can be directly mounted at the bottom end of the conveying belt by means of the rack of the conveying belt, so that the influence on the original structure of the conveying belt is small.