60results about How to "Guaranteed stable operation" patented technology

The invention brings forward a power balancing control method of cascaded photovoltaic grid-connected inverter on the partial shadow condition. The method comprises the following steps: (1), carrying out independent maximum power point tracking (MPPT) controlling on H bridges of all cascade units to obtain all-stage direct-current voltage instruction values and then carrying out PI controlling on a general direct-current voltage to obtain a grid-connected current instruction value; (2), carrying out quasi-proportional resonant (PR) control of the grid-connected current and grid voltage feedforward control so as to obtain initial duty ratio values of the H bridges; (3) carrying out per-unit processing on actual values of the direct-current side voltages of the cascade units according to the respective direct-current side voltage instruction values of all the cascade units, carrying out comparison with 1 and carrying out PI controlling so as to obtain active correction values of the duty ratios of the H bridges, and realizing power balancing control based on the duty ratio correction. According to the control method, floating control of the grid-connected current can be realized; and power balancing of all power units of the cascade inverter can be maintained. The provided control method has advantages of clear conception, simple control structure, and easy engineering realization and the like.

The invention relates to rapid aquatic plant algae fishing equipment, in particular to rapid lake aquatic plant algae fishing equipment. The technical problem to be solved is how to provide the lake aquatic plant rapid fishing equipment capable of removing water from fished aquatic plants and reducing the volume of the aquatic plants. The rapid lake aquatic plant algae fishing equipment comprisesa mounting seat, a first rotating shaft and the like; mounting bases are arranged on the front portion and the rear portion of one side of the top of a hull, and first rotating shafts are rotationallyconnected to the two sides in the mounting bases. According to the rapid lake aquatic plant algae fishing equipment, through cooperation of toothed belts and above devices, the purpose of removing water from the aquatic plants and compressing the aquatic plants is achieved, the accumulated volume of the aquatic plants is reduced while the weight of the aquatic plants is reduced, and the carryingcapacity of the hull is improved.

The invention discloses a method and system for processing a system temperature sensor fault of a server. The method comprises the following steps that firstly, a monitoring management unit is used for polling a temperature sensor through an I2C bus to obtain instant system temperature information, and controlling the output duty ratio of a fan controller according to the current system temperature conditions; secondly, when the temperature sensor works normally, the monitoring management unit outputs high-level GATE signals, a system fan is controlled by PWM signals, and when the temperature sensor breaks down, the monitoring management unit immediately reduces GATE signals, revolving speed control signals of the fan are directly increased into the direct voltage VCC, and the fan rotates at a full speed; thirdly, the monitoring management unit obtains correct system temperature information again in a polling mode and releases the GATE signals, the system fan is controlled by the PWM signals, and normal work is restored. By means of the method and system, the reliability and stability of the server can be guaranteed, and the stabile operation of a calculation system can be guaranteed.

The invention provides a lock-up control method for the DC (Direct Current) power fluctuation of a weak AC (Alternating Current) receiving power grid. The method comprises the following steps of determining the operating way of the power grid; determining the lock-up control motion frequency fixed value of the DC power fluctuation; and performing the lock-up control of the DC power fluctuation. According to the lock-up control method for the DC power fluctuation of the weak AC receiving power grid, when the DC power is fluctuated and the grid frequency at the weak AC receiving end is reduced to a limiting frequency, a direct current system is bipolarlly locked to guarantee a underfrequency load shedding device at a third line of defense to be failure to actuate after a correct operation is safely controlled, the grid frequency collapse can be prevented due to the fact that the weak AC receiving power grid bears larger power vacancy but any measure is not adopted, and an AC receiving system can be guaranteed to stably operate; and meanwhile, overall process monitoring during a direct current power fluctuation period can be realized and false operation can be prevented by setting a starting criterion, a motion criterion and an exit criterion.

The invention discloses a dome camera with a self-cleaning function, relates to the technical field of a monitoring device and solves the problem that an existing dome camera does not take the self-cleaning function into consideration. The dome camera comprises a glass cover, a waterproof cover, and a control system and a camera set in the waterproof cover. An outer cover is sleeved out of the waterproof cover. A clearance is reserved between the waterproof cover and the outer cover. Slide rails are set on the inner wall of the bottom of the outer cover and the outer wall of the waterproof cover. A power device matching the slide rails is set in the clearance. A cleaning device contacting the glass cover is set under the power device. According to the dome camera, the cleaning device is driven to clean the glass cover through utilization of the power device, the dome camera has the advantages of simple structure, stable operation and good cleaning effect, and the dome camera has wide application prospect in the field of the monitoring device.

The invention discloses a pretreatment apparatus for a biogas online laser Raman spectrometer, and a use method thereof. The apparatus is an integrated system, the inlet of the apparatus is connected with biogas, and the outlet of the apparatus is connected with the laser Raman spectrometer; the apparatus at least comprises, sequentially connected, an impurity processing unit, a cooling treatment unit and a constant speed control unit; and the impurity processing unit comprise a tar purifying unit and an impurity adsorbing unit paralleling to the tar purifying unit, and the inlet of the apparatus is provided with a triple valve in order to realize the connection between the inlet of the apparatus and the tar purifying unit or the impurity adsorbing unit. The apparatus has a simple structure, and the corresponding pretreatment apparatus can be flexible prepared by synthetically considering impurities carried in different gas samples according to the onsite practical conditions and the gas quality characteristic of a biomass combustion gas system in order to realize stable running of the e laser Raman gas spectrometer, the accuracy and sensitivity of Raman analysis data and real-time online continuous treatment.

The invention discloses a detection robot for transmission pole climbing. The robot comprises an upper box body and a lower box body, wherein a guiding cylinder is arranged on the upper box body, a connecting cylinder is arranged on the lower box body, a threaded rod is arranged in the upper box body, a main motor is arranged in the upper box body, a main gear is arranged on an output end of the main motor, and a sub-gear is arranged on the threaded rod; a sub-motor is arranged in a shell body, the shell body is provided with an opening, an output end of the sub-motor is provided with a driving gear, a driven gear is arranged on a screw rod, a clamping claw is hinged at the end portion of each supporting rod, a compressing block is fixed at the end portion of a sleeve, and the side wall ofthe clamping claw is provided with a plurality of anti-slip strips. The detection robot for the transmission pole climbing has the advantages that the vertical movement of the upper box body and lower box body on the pole are used to replace manual climbing, components on the pole are detected and monitored through a detecting part arranged on the upper box body, detection data is fed back to a monitoring center on the ground, so that a construction worker can quickly exclude relevant obstacles to ensure the stable operation of a high-voltage transmission line.

The invention discloses an adjusting method, system and device for three-phase imbalance of the load of a transformer area, a medium and equipment. The method comprises the following steps: S1, carrying out transformer area recognition and phase recognition on power consumers, and uploading recognition results; S2, acquiring the voltages and currents of all the ammeters in a transformer area to which a terminal belongs according to a preset acquisition frequency, and calculating an average current value according to a preset period; S3, calculating the three-phase unbalance rate of a low-voltage power grid of the power supply transformer area according to the collected voltages and currents of the ammeters and the phase information of the transformer area where the ammeters are located; S4, if the three-phase unbalance rate exceeds a preset limit value, making a regulation and control strategy according to corresponding relation among the phase information, an intelligent phase changeswitch and electric meters carried under the intelligent phase change switch; and S5, issuing a regulation and control instruction, and issuing a phase switching instruction to the intelligent phase-change switch. The method has the advantages of dynamic adjustment, good real-time performance, low cost, high applicability and the like.

The invention relates to a movable contaminated bottom sediment on-site treatment integral device and a treatment process thereof. The integral device comprises a movable assembly and an integral treatment assembly loaded on the movable assembly, wherein the integral treatment assembly comprises a slag-removing sand-removing integral unit, a pre-concentrating unit, a dosing conditioning unit and a deep concentrating and dewatering unit; a slag-removing outlet of the slag-removing and sand-removing integral unit is connected with a sundry collecting device; a sand-removing outlet is connected with a sand grain receiving device; a sewage outlet and a dosing hole of the dosing conditioning unit are connected with the inlet of the pre-concentrating unit together; a bottom sludge outlet of the pre-concentrating unit is connected with the inlet of the deep concentrating and dewatering unit; the bottom outlet of the deep concentrating and dewatering unit is connected with a mud cake receiving device. Compared with the prior art, the movable contaminated bottom sediment on-site treatment integral device and the treatment process thereof have the advantages that contaminated bottom sediment can be treated effectively, and resource utilization of sand grains in the bottom sediment is realized synchronously; meanwhile, the integral treatment assembly is loaded on ta container or a ship in a centralized way, so that the floor area is saved effectively, building cost is lowered, and operation is flexible.

The invention relates to a heat radiating shell, which is applied to a circuit board provided with a heating element. The heat radiating shell comprises a metal cover and a shell wrapping the metal cover, wherein the metal cover is provided with an accommodation space for accommodating the circuit board, a gap is kept between the shell and the metal cover to form an air interlayer so as to reduce the temperature of the shell and overcome the defects of the prior art.

The invention discloses a device and a method for hydraulic support gesture detection. The device comprises a data acquisition device, a signal transmission module, a signal processing module and a display module. The water column pressure is measured through a pressure sensor, the perpendicular height of a hose pipe is further determined, a vertical height difference of four corners of a rectangular top plate of a hydraulic support and a vertical height difference of four corners of a rectangular bottom plate are obtained, then a long side inclined gesture angle and a wide side inclined gesture angle of the rectangular bottom plate and a long side inclined gesture angle and a wide side inclined gesture angle of the rectangular top plate are obtained by utilizing a trigonometric function through the vertical height differences and known long side lengths and wide side lengths of the rectangular bottom plate and the rectangular top plate, and finally, by adopting the two angles as difference values, the long side inclined gesture angle and the wide side inclined gesture angle, relative to the rectangular bottom plate, of the rectangular top plate are obtained; finally the real-timegesture detection of the hydraulic support top plate and the bottom plate is realized. According to the device and the method provided by the invention, the real-time gesture angle of the hydraulic support can be accurately detected, so that the stable operation of the hydraulic support is ensured.

The invention provides an ice disaster prevention method for suppressing wire torsion by distributed suspended heavy hammers. The method comprises the following steps: S1, acquiring parameters of a power transmission line, wherein the parameters comprise an equivalent icing thickness and a line span length of the power transmission line; S2, calculating eccentric torque of eccentric ice of wing-shaped icing formed by the power transmission line under the condition that the power transmission line is not twisted; S3, determining the total torque of the suspended heavy hammers according to the suspended weight mass and the shape of the suspended heavy hammers, wherein the total torque is equal to the eccentric torque; and S4, determining the number and the distribution spacing of the suspended heavy hammers, and then suspending the suspended heavy hammers according to the distribution spacing. The power transmission line can be effectively prevented from waving under the wind power condition so that the power transmission line is prevented from twisting due to waving to form uniform icing and the icing is non-uniformly coated on one side. The wing-shaped icing of the power transmission conductor naturally falls off under the action of natural wind power so that the icing disaster of the power transmission line is prevented, the stable operation of the whole power grid system is further ensured, and the production and life loss of the society caused by the icing of the power transmission line is avoided.

Disclosed is a system of utilizing liquid nitrogen wash to produce syngas for synthetic ammonia and LNG. The system comprises a first heat exchanger, a second heat exchanger, a dehydrogenation tower, a liquid nitrogen wash tower, a methane tower, a nitrogen refrigerating system and a medium voltage nitrogen inlet pipe, wherein the medium voltage nitrogen inlet pipe is connected to a medium voltage nitrogen gas source, the medium voltage nitrogen inlet pipe is connected to the liquid nitrogen wash tower after passing the first heat exchanger, the second heat exchanger and a third heat exchanger, the medium voltage nitrogen inlet pipe is communicated with a first pipeline through a first inlet pipe, a communication point between the first inlet pipe and the first pipeline is located between a nitrogen compressor unit and the first heat exchanger, and the first inlet pipe is provided with a first valve. According to the system of utilizing liquid nitrogen wash to produce syngas for synthetic ammonia and LNG, qualified syngas for synthetic ammonia is produced, and an LNG product with a high additional value is obtained at the same time; in addition, when a synthesis ammonia system stops, stable operation of the system can be guaranteed under the situation that a raw material of ammonia synthesis is not produced.

The invention relates to the technical field of water purification, and in particular relates to a method for preventing a whole-house separate purifying device film from being polluted. The method comprises the following steps of: 1) carrying out ultrafiltration membrane backwashing on a hollow fiber ultrafiltration membrane of ultrafiltration equipment through tap water, and then carrying out positive ultrafiltration membrane washing; and 2) carrying out positive spiral-wound membrane washing on a spiral-wound membrane of nanofiltration or reverse osmosis equipment through water. According to the method for preventing the whole-house separate purifying device film from being polluted, the hollow fiber is subjected to ultrafiltration backwashing, positive ultrafiltration washing and positive spiral-wound membrane (nanofiltration or reverse osmosis) washing by the raw water of tap water when in downtime in light of the polluting conditions of the hollow fiber ultrafiltration membrane and the spiral-wound membrane (nanofiltration membrane or reverse osmosis membrane) of a core component of a whole-house separate water supplying device, the serious pollution of the hollow fiber ultrafiltration membrane and the spiral-wound membrane (nanofiltration membrane or reverse osmosis membrane) can be effectively avoided, the stability of the system in running can be ensured, the service life of the reverse osmosis membrane is prolonged, and the operation cost of the system is reduced.

The invention relates to the technical field of communication, in particular to a dynamic interaction method, device and system. The method comprises the following steps: receiving and analyzing a business demand information request so as to obtain account number information and a dynamic input code; analyzing the dynamic input code according to a dynamic input area dictionary so as to obtain business demand information; obtaining related business data according to the business demand information; and feeding the business data back to a peripheral business device. Through the dynamic interaction method, device and system, the peripheral business device can clearly inform a core device of to-be-acquired information, and the core device does not need to feed redundant information back, so that the frequency of interaction between the peripheral business device and the core device is decreased, and the stable running of the whole system is ensured.

The invention discloses a water bar system adopting a double circulation mode. The system comprises a heating unit and a water purification unit, wherein the water purification unit comprises an RO (reverse osmosis) filter, concentrated water produced by the RO filter enters into the heating unit via a wastewater proportioner, a water outlet of the heating unit is connected with a tap water source, the tap water source is connected with a water inlet of the water purification unit, an overflow electromagnetic valve is arranged between the wastewater proportioner and a water inlet of the heating unit, and a normally open electromagnetic valve is arranged between the RO filter and the water inlet of the heating unit. The overflow electromagnetic valve and the normally open electromagnetic valve are added to the system, TDS (total dissolved solids) in the system cannot be too high in the double circulation mode, and stable operation of the system is guaranteed; different circulation modescan be switched according to the water temperature, the purification efficiency of the RO filter is improved and the service life of the RO filter is prolonged.

The invention discloses a beer waste water treatment process, comprising: water inlet, grating, solid-liquid separation, a water collection well, pH value regulation, anaerobic UASB, aerobic SBR and water outlet. The treatment process uses two-stage physicochemical separation by combining point adhesion of the beer waste water, guarantees stabilization operation of anaerobic UASB, simultaneously increases a pH value regulation technology, and is in favor of validity of anaerobic UASB technology treatment. The treatment process has advantages of simple process, low cost, obvious purifying effect, and easy utilization in production.

The invention relates to the field of grain processing, in particular to a circular grain drying device. The device comprises a vertically arranged supporting mounting cylinder, the lower end of the supporting mounting cylinder is provided with a plurality of supporting mounting columns with equal angles, the upper left corner of the supporting mounting cylinder is horizontally provided with a feeding gate, the lower right angle of the supporting mounting cylinder is vertically provided with a discharging gate, the middle of the upper end of the supporting mounting cylinder is provided with atransmission mounting cover, the middle of the lower end of the supporting mounting cylinder is vertically provided with a guiding mounting cylinder, and the upper end of the guiding mounting cylinderis vertically provided with beveled guiding cylinders. The circular grain drying device has the advantages that the power of material lifting and staggered material discharging of the device is powerful through driving of multiple motors and the transmission of planet gears, stable running of the device is ensured, the device can perform drying operation repeatedly through spiral material lifting, and the drying efficiency is obviously improved by cooperating with an active air blowing structure.

The invention relates to a deep bed underflow process for enhanced nitrogen removal advanced treatment of low-pollution sewage. According to the process, sewage is enabled to flow through a surface flow constructed wetland and a deep bed horizontal subsurface flow wetland in sequence; the surface flow constructed wetland comprises a first-stage surface flow wetland and a second-stage surface flowwetland; a nitrifying bacteria inoculant is added into the first-stage surface flow wetland; an aeration drop weir is arranged at the tail end of the first-stage surface flow wetland; wherein the deep-bed horizontal subsurface flow wetland is sequentially paved with a breathable impermeable sand layer, a filter layer, a denitrifying bacterium agent composite carbon source layer and an ecological gravel filler layer from bottom to top; tail water of the surface flow constructed wetland enters the deep bed horizontal subsurface flow wetland through a water collecting weir and a water passing culvert pipe and then is discharged through a water distribution channel, a subsurface flow wetland main body and a water collecting channel of the deep bed horizontal subsurface flow wetland. Accordingto the invention, the problems of nitrification reaction aeration of the subsurface wetland, lack of a carbon source in denitrification and low hydraulic load and large occupied area of the subsurfacewetland are solved, the stable operation of artificial constructed wetland system is ensured, and the low-pollution sewage is subjected to deep enhanced denitrification treatment.

The invention relates to an absorption apparatus, and especially relates to a water filter type dust absorption apparatus for chemical engineering production of chemical fertilizers. A technical problem to be solved is to provide the water filter type dust absorption apparatus for chemical engineering production of chemical fertilizers, having the advantages of effectiveness in absorption of smallparticles, convenience in cleaning of the absorbed small particles, and ensuring of the production safety of workers. The water filter type dust absorption apparatus for chemical engineering production of chemical fertilizers, provided to solve the technical problem, comprises a first mounting plate, an L-shaped supporting rod, a preliminary filtering device and a first air discharging tube; anda water tank is arranged at the right side of the top of the first mounting plate, a water inlet tube is arranged at the right side of the top of the water tank, and a water outlet tube is arranged atthe lower part of the right side of the water tank. Outside large impurities are separated through a first mesh plate to avoid the outside large impurities from entering an air absorption device, sothe stable running of the absorption apparatus is guaranteed; and a second mesh plate is positioned in a second frame to adsorb parts of small particles under the action of static electricity, so thefiltering capability of the apparatus is improved.

The invention discloses an all sea depth profile stereo buoy observation system based on a photoelectric composite cable. The observation system comprises a sea surface buoy platform, a buoy anchor system and a sea bottom observation system which are successively connected; the sea surface buoy platform is provided with a data acquisition system and a power supply system; the buoy anchor system comprises a photoelectric composite cable, and a plurality of branches are separated on the photoelectric composite cable through a plurality of separation boxes and carried out photoelectric separation, and each branch is used for hanging and mounting observation sensors; and a data acquisition unit collects data of the observation sensors on the photoelectric composite cable and in the sea bottomobservation system to realize observation of a profile and a sea bottom. The observation system adopts the separation boxes on the photoelectric composite cable for photoelectric separation, continuous power supply of the sensors is realized through a separated optical unit, and stable operation of the system is ensured.

The invention relates to an indoor waterproof leakage monitoring insulating top shell device which is technically characterized by comprising a waterproof leakage monitoring insulating top shell and a water guide supporting device installed at the lower end of the waterproof leakage monitoring insulating top shell. The waterproof leakage monitoring insulating top shell is made of a waterproof leakage monitoring insulating plate with the high middle and the two low sides, and water collecting grooves are formed in the lower edges of the two sides of the waterproof leakage monitoring insulating plate; and a drainage hole is formed in the water collecting groove and is used for draining water in the water collecting groove through the water guide supporting device. The water collecting groove is formed in the lower edge of the waterproof leakage monitoring insulation top shell, water in the water collecting groove is discharged through the water guiding supporting device at the bottom, and the functions of water prevention, water leakage monitoring, water leakage guiding, electrical insulation and isolation and the like are achieved; and meanwhile, the moisture-sensitive ink layer with uniform net-shaped patterns is arranged on the waterproof leakage-monitoring insulating top shell, so that maintenance personnel can find the water dripping condition and deal with the water dripping problem in time, and normal operation of the high-voltage electrical equipment is ensured.

The invention relates to a chemical equipment state monitoring and fault diagnosis method and system, and belongs to the field of equipment monitoring and fault diagnosis. Then, according to the operation parameters, the operation state of the chemical equipment is judged; inputting the operation parameters of the chemical equipment in the abnormal operation state into the trained deep neural network classification model, and outputting a fault code representing a fault category; the trained deep neural network classification model is a deep neural network classification model with a multilayer circular convolutional backbone network, which is obtained by training with the operation parameters of the chemical equipment as input and the fault codes corresponding to the operation parameters as output. According to the method, remote state monitoring and fault diagnosis of the chemical equipment can be realized, and normal operation of the chemical equipment is ensured.

An intelligent temperature regulation system for transformer oil provided by the invention can be used for carrying out intelligent temperature regulation control on the transformer oil, and comprises an oil-water cooler, a steam heater and a microcomputer controller; an oil inlet pipeline, an oil outlet pipeline, a water inlet pipeline A and a water outlet pipeline A are arranged on the oil-water cooler, and a bracket A is arranged at the bottom of the oil-water cooler; a steam inlet pipeline, a steam outlet pipeline, a water inlet pipeline B and a water outlet pipeline B are arranged on the steam heater, and a bracket B is arranged at the bottom of the steam heater; the water outlet pipeline B is communicated with the water inlet pipeline A through a connecting pipeline; a temperature sensor A is arranged on the oil inlet pipeline, and a temperature sensor B is arranged on the water outlet pipeline B; an electric valve A is arranged on each of the steam inlet pipeline and the steam outlet pipeline; a bypass pipe is communicated with the connecting pipeline, and an electric valve B is arranged on the bypass pipe; and the temperature sensor A, the temperature sensor B, the electric valve A and the electric valve B are electrically connected with the microcomputer controller. Correspondingly, the invention further provides an intelligent temperature adjusting method for the transformer oil.

The invention discloses a forklift feeding structure for a steel mill. Multiple groups of forklift wheels are arranged on a rack; a guiding structure is arranged between the two groups of forklift wheels, and comprises a support beam; the support beam is perpendicular to a plate unloading table; the back end of the support beam and a rack of the plate unloading table are arranged in a sliding waythrough a track; multiple groups of guide wheels are arranged on the upper surface of the back end of the support beam; a guiding frame is arranged at the front end of the support beam; rolling wheelsare arranged on the bottom part of the support beam; the guiding frame is provided with an inclined surface; the height of the inclined surface is larger than the height of each forklift wheel; a casting blank is arranged in front of the guiding frame; and when the guiding frame moves backwards, the casting blank moves to the upper face of the support beam along the inclined surface, so that therolling wheels are effectively prevented from being scrapedoff. The forklift feeding structure for the steel mill provided by the invention has the advantages that the guiding frame is additionally arranged at the gap between the two groups of forklift wheels of the plate unloading table, and the guiding wheels are arranged above, so that the casting blank can slide favorably. When steel is pushed, an operator firstly utilizes the frame to align at the casting blank, then the casting blank is lifted up and lowered down so as to be higher than the guiding wheels, and the steel is then pushed, so that the guiding wheels are effectively prevented from being scraped, and the stable operation of production is ensured.

The invention relates to an official mall standard system architecture with high flexibility and stability, and provides an official mall system with high flexibility and stability. The official mallstandard system architecture comprises a front-end mall system, a back-end management system, and a data and interface processing system. The back-end management system comprises a content managementsubsystem, a commodity and order management subsystem, a member management subsystem and a promotion engine subsystem. The data and interface processing system defines an interaction norm between theofficial mall system and a peripheral system, and is provided therein with an interface with a core sales system commonly used on the market. All the subsystems provide services in the form of independent deployment. Also provided is a method for implementing the official mall system. The official mall system of the present invention supports customization, has open interfaces and stable architecture, can meet the needs of brand promotion and image display to the utmost extent, and can ensure the stable operation of the brand official mall.

The invention relates to a stably-running optical fiber transceiver for network communication. The optical fiber transceiver comprises a shell, a wiring mechanism and four supporting mechanisms, the wiring mechanism comprises a translation assembly, a translation block, a support rod, an opening, a wiring board and a hinge assembly. The supporting mechanism comprises a supporting pipe, a suction cup, a fastening assembly and an air exhaust box. An air exhaust assembly is arranged in the air exhaust box; the air exhaust assembly comprises an air exhaust plate, an air exhaust unit and an air exhaust opening. According to the stably-running optical fiber transceiver for network communication, an external optical fiber can be conveniently accessed through the wiring mechanism; the optical fiber interface is adjusted to the lower part of the shell; in addition, the optical fiber transceiver is fixed on a desktop through the supporting mechanism, the situation that the operation of the equipment is affected by poor contact between the optical fiber and the equipment after the equipment deviates is prevented, the stable operation of the equipment is further guaranteed by fixing the position of the equipment, and the practicability of the optical fiber transceiver is improved.

The invention discloses an anti-drop waste oil collecting bottle which comprises a bottle body, a bottle cap and an anti-drop piece, the bottle cap covers the opening end of the bottle body in a sealing mode, the bottle cap is provided with an opening communicated with an inner cavity of the bottle body, and the anti-drop piece is connected to the bottle body and can apply pressure to the bottle cap so that the bottle cap can press the opening end of the bottle body. According to the waste oil collecting bottle, the anti-falling piece is fixedly installed on the bottle body and can limit the bottle cap, so that the bottle cap and the bottle body can keep a stable connection relation, the bottle cap and the bottle body are prevented from loosening or falling off due to high-speed rotation or vibration environment, it is guaranteed that the waste oil collecting bottle can still be normally used in the high-speed rotation and high-vibration environment, and the waste oil collecting bottle is safe and reliable. Stable operation of the wind driven generator is guaranteed, environmental pollution is avoided, and potential safety hazards are eliminated.

The invention relates to the technical field of thinning machines, in particular to a drainage box and a thinning machine. The drainage box comprises a leveling boss, a connecting piece, a pull rod and an adjusting piece, a plurality of leveling stations are arranged on a bottom plate of the drainage box in the circumferential direction of the assembly hole at intervals, the leveling stations are concaved inwards to form the leveling boss with an opening in the bottom, and the side wall of the leveling boss is connected with the bottom plate of the drainage box. The connecting piece is arranged at the opening end of the leveling boss and connected with the bottom plate. One end of the pull rod is fixedly connected with the top wall of the leveling boss, and the other end is movably connected with the connecting piece. The adjusting piece can enable the connecting piece to move in the axial direction of the pull rod and drive the bottom plate close to the leveling station to deform, and therefore the size of the gap between the assembly hole and the rotary table is adjusted. The thinning machine adopts the drainage box, and the bottom plate near the leveling station is leveled through the matching of the adjusting piece and the pull rod so as to level the assembly hole, so that the gap between the assembly hole and the rotary table is uniform and consistent, and the rotary table is prevented from interfering with the assembly hole in the rotating process.

The invention is suitable for the technical field of resource recovery, and provides a resource utilization method of copper in etching waste liquid, the etching waste liquid enters a water inlet tank of a ceramic membrane system, the etching waste liquid is pumped into the ceramic membrane system through a feeding pump and a circulating pump, impurities such as large particles and suspended solids in the waste liquid are removed through ceramic membrane filtration, and the copper in the waste liquid is recycled. The obtained ceramic membrane system produced water enters the ceramic membrane system produced water tank, the etching waste liquid is pretreated by adopting a ceramic membrane technology, and due to the fact that the etching liquid is high in acidity and complex in component, compared with other technologies, a ceramic membrane has the excellent performance of acid resistance, alkali resistance, organic solvent resistance, high temperature resistance and the like, stable operation of the system can be guaranteed, and meanwhile, the production water can be recycled. The pore size of the ceramic membrane is nanoscale, the filtering precision is high, suspended matter impurities in waste liquid can be removed, the turbidity of water produced by the ceramic membrane system is smaller than 1 NTU, the water inlet requirement of a back-section nanofiltration system is met, and stable operation of the nanofiltration system can be guaranteed.