67results about How to "Improve working conditions" patented technology

The invention provides a novel compressed air and hydrogen energy storage coupling system and a working method thereof. The system comprises an air and hydrogen coupled energy storage circulating system, an air and hydrogen coupled energy release circulating system and a waste heat multi-stage recycling heat storage circulating system. The energy storage cycle of the coupling system converts electric energy into hydrogen energy and pressure energy of air for storage, the energy release cycle converts the pressure energy and the hydrogen energy of the air into electric energy for release, the heat storage cycle system recycles and utilizes heat in the system operation process in a multi-stage mode through heat conduction oil and cooling water, and tight coupling of compressed air energy storage and hydrogen energy storage is achieved. According to the coupling system, cooling water and heat conduction oil are used as heat exchange media, heat energy generated in the energy storage process of the system is recycled in a multi-stage mode, the stored heat energy is used for heating air and hydrogen in the energy release process, and therefore the power capability of high-pressure air and hydrogen is improved. The system mixes the exhaust gas of the air expansion machine with oxygen, and the mixed gas is depressurized by the pressure stabilizing valve and then supplied to the hydrogen fuel cell, so that the oxygen concentration in the mixed gas is increased, and the power generation performance of the hydrogen fuel cell can be effectively improved.

The invention discloses efficient cleaning equipment for a sampling cone and an intercepting cone for an inductively coupled plasma mass spectrometer, the efficient cleaning equipment comprises a servo motor, a mounting piece, a telescopic air cylinder, a pressing piece, a driving motor, a lead screw, a sliding table and a polishing cylinder body, and in addition, the invention further discloses an efficient cleaning method for the sampling cone and the intercepting cone for the inductively coupled plasma mass spectrometer. And respectively fixing the concave-convex surfaces of the sampling cone and the intercepting cone, and respectively carrying out rough cleaning and fine cleaning. According to the efficient cleaning device, the servo motor is arranged and matched with the mounting part to achieve fixed mounting and rotation of the sampling cone or the cutting cone, the telescopic air cylinder is arranged and matched with the pressing part to achieve pressing of the sampling cone or the cutting cone, and therefore efficient cleaning is achieved; the cleaning medium on the sampling cone or the intercepting cone is prevented from leaking out, the efficient cleaning effect is guaranteed, the device is simple and efficient, damage to the cone due to the cleaning mode is reduced, and the service life of the sampling cone or the intercepting cone is prolonged.

The utility model relates to the technical field of dry grinding and dry separation of iron ore and similar processes, and particularly discloses a dry grinding and dry separation system which comprises an incoming material conveying system, a roller mill, a dynamic powder concentrator, a dry classification cabin and a fine powder collecting and conveying system. A discharging hole of the supplied material conveying system is communicated with a feeding hole of the roller mill; a discharging hole of the roller mill is communicated with a feeding hole of the dynamic powder concentrator; a coarse particle material outlet of the dynamic powder concentrator is communicated with a material inlet of the dry type grading cabin; an oversize coarse particle discharging opening of the dry type grading cabin is communicated with a feeding opening of the roller mill; and a fine powder discharge hole of the dynamic powder concentrator is communicated with the fine powder collecting and conveying system. Finished product materials with various particle sizes can be provided, and the requirements of customers for different finished product particle sizes are met; fine powder screened by the dynamic powder concentrator is collected by a dust collector and then is directly conveyed to a tailing discarding procedure, so that the handling capacity of the dry classification cabin is reduced; the use condition of the dry-type grading cabin is optimized, and the system flow is simplified.

The utility model provides automatic welding production line equipment for civil air defense steel structure door leaves, and belongs to the technical field of steel structure door leaf production and welding. A first welding station, a first overturning station, a second welding station, a transition station, a third welding station, a second overturning station and a discharging station are sequentially arranged on the linear rail in the length direction of the linear rail. The first welding station, the second welding station and the third welding station are each provided with a lifting carrying trolley, two grouping supporting tables and two cantilever welding robot devices. Two lifting turnover devices are arranged on each of the first turnover station and the second turnover station; the transition station and the discharging station are each provided with two grouping supporting tables. According to the welding production line equipment, the lifting carrying trolley is adopted to complete the transfer work of the steel structure door leaf on the production line, the cantilever welding robot device is adopted to complete the main welding procedure of the steel structure door leaf, the layout of all stations and the selection of parts are reasonable, and the production efficiency is high.

The utility model provides a kind of for coke coal pre-arrangement gangue intelligent dry method sorting equipment, it belongs to coal sorting technical field, wherein upper layer X-ray generator, upper layer beating device, lower layer X-ray generator and lower layer beating device are all installed on equipment rack, unified dust collector and control terminal are equipped;Upper layer X-ray receiver and lower layer X-ray receiver are respectively arranged in the inner cavity of upper layer sorting conveying device and lower layer sorting conveying device;Upper layer sorting conveying device and lower layer sorting conveying device all include transmission belt, transmission roller and driving motor, transmission roller is fixedly connected in the inner cavity of equipment rack by bearing.Compared with traditional single-layer photoelectric sorting equipment, the utility model uses upper and lower double-layer sorting structure, a single device can process two layers of coal simultaneously, greatly improves the processing capacity of coal, when facing a large number of coal sorting tasks, multiple devices do not need to be used simultaneously, saves sorting time, improves overall production efficiency.

The application discloses an integrated steel casing sinking device and a use method thereof, and the device comprises a spiral drill rod, a motion isolation unit, an elastic centering unit and the like. The outer wall of the spiral drill rod is provided with paddle-shaped blades capable of continuously rotating and ascending. The motion isolation unit comprises a positioning assembly, a positioning base body, a clamping groove arranged on the wall of the steel casing, and a clamping unit. The elastic centering unit comprises an abutting wheel, a rotating connecting block, a sliding telescopic rod, a centering spring sleeved on the outer wall of the sliding telescopic rod, a tail limiting groove and a drilling condition sensing unit. The spiral drill rod is used as a pile driving bit, so that the technical effect of excavating soil layers is achieved, and the paddle-shaped blades capable of spirally ascending are simultaneously used to automatically transport the excavated soil upwards. In addition, the motion state of the bit is isolated by using the motion isolation device, so that the motion isolation between the steel casing and the spiral drill rod rotating in the middle is achieved as a whole, and the rotation of the steel casing caused by the motion of the spiral drill rod is effectively blocked.

The invention provides a zinc pot stabilizing roller adjusting device and method capable of achieving accurate positioning. According to the invention, through a multi-state cooperative control model, a dual accurate positioning system of induction distance measurement and scale visual feedback, and execution mechanisms which are independently or synchronously adjusted on two sides, rapid, accurate and quantifiable adjustment among a working position, a critical position and an exit position of the front stabilizing roller is realized. The device comprises a sink roll, a rear stabilizing roll, a front stabilizing roll, a front stabilizing roll supporting arm, a front stabilizing roll beam and two sets of symmetrically-arranged adjusting devices, and the adjusting devices drive lead screw shafts through gear motors, convert rotary motion into linear motion of supporting seats and drive the front stabilizing roll beam and the front stabilizing roll to move accurately. According to the invention, electric automatic adjustment is realized, the adjustment precision, response speed and stability are improved, the running stability of strip steel and the uniformity of a zinc coating are ensured, and meanwhile, the safety of a working environment is improved.

The invention belongs to the field of steel smelting, and particularly discloses a scalable umbrella rib type supported fuel gas injection device and a control method thereof. The device comprises a gas pipe, a blowing pipe, a blowing cover and a push-pull device. The blowing cover comprises a plurality of parallel supporting frames, telescopic rods connected with the adjacent supporting frames and foldable cover bodies connected with the adjacent supporting frames, and end plates are arranged at the two ends of the blowing cover. The injection pipe fixedly penetrates through the top of the cover body and is communicated with the gas pipe, and gas enters the material layer through the injection pipe. The injection cover sliding rails are arranged on the two sides of the sintering trolley correspondingly, the push-pull device drives the two ends of the injection cover to slide along the injection cover sliding rails correspondingly, space can be vacated for maintenance, and the fuel gas injection starting point position and the fuel gas injection covering length can be adjusted. According to the method, by controlling the fuel gas injection starting point position, the fuel gas injection coverage length and the fuel gas injection amount, the optimal production working condition can be guaranteed, and the production quality is improved.

This invention discloses a chemical equipment exhaust gas filtration device, belonging to the field of chemical equipment technology. The chemical equipment exhaust gas filtration device includes a purification cylinder, with a connecting member installed on the upper surface of the purification cylinder, and a filter assembly installed inside the connecting member. The filter assembly includes a purification mechanism for purifying impurities and a cleaning mechanism for removing sticky impurities, with the cleaning mechanism installed inside the purification mechanism. The purification mechanism includes a partition fixedly connected inside the purification cylinder. This invention, by setting a dedicated cleaning mechanism, can efficiently and thoroughly clean oily impurities and viscous dirt adhering to the inside of the purification mechanism, effectively avoiding problems such as blockage and increased resistance caused by impurity accumulation. The purification device, after timely cleaning, can maintain good operating conditions and achieve long-term stable continuous operation, thereby ensuring that the overall treatment efficiency is not affected and significantly improving the service life and reliability of the device.

The present application relates to the field of drilling engineering, and particularly relates to a kind of automatic spraying device and operating method of drill pipe thread grease, including self-locking screw lifting platform, rotating platform assembly, support assembly, telescopic rod assembly, spraying head and thread grease conveying pipe;Spraying head includes outer thread spraying assembly, push-pull cylinder A, piston rod A, push-pull cylinder B, piston rod B, inner thread spraying assembly and shell;The self-locking screw lifting platform realizes the lifting of spraying head;The rotating platform assembly realizes the rotation of spraying head;The telescopic rod assembly realizes the centring of spraying head;The spraying head is sprayed with thread grease to drill pipe joint.The beneficial effects of the present application are: automatic spraying thread grease is realized, intelligent drill pipe conductor ring is prevented from being contaminated, operation efficiency is improved and different specifications of drill pipe joint can be adapted.

The application relates to a vehicle power consumption control method, a storage medium, a controller and a vehicle. The vehicle power consumption control method comprises the following steps: acquiring the running condition of a vehicle cabin system when the vehicle is in a power-on working condition; and controlling the vehicle cabin system to switch the working state according to the running condition, wherein the step of controlling the vehicle cabin system to switch the working state comprises the step of controlling the vehicle cabin system to switch to a first preset low-power consumption state. The vehicle is controlled according to the running condition of the vehicle cabin system to ensure that the vehicle cabin system can be kept in the most suitable working state, which comprises the step of controlling the vehicle cabin system to switch to the first preset low-power consumption state, so that the vehicle cabin system can enter a lower power consumption running state at a suitable time, and the power consumption can be reduced without powering off the vehicle to make the vehicle cabin system shut down or enter a hibernation state. Therefore, the energy consumption can be saved in the vehicle power-on state, and the user experience is improved.

This invention relates to the field of radial thrust bearing technology, specifically a radial thrust bearing comprising an inner ring, an outer ring, a cage, and balls, and a circulation mechanism. The inner ring is fitted inside the outer ring, and the balls are rolled and embedded between the inner and outer rings. The cage is installed between the inner and outer rings, with the balls located on the cage. The circulation mechanism is installed on both sides of the outer ring. This invention solves the problem that existing bearings still generate high internal temperatures at high speeds. High temperatures reduce the viscosity of the lubricating oil, leading to a thinner oil film, increased friction, and ultimately, accelerated bearing temperature rise. Excessive bearing operating temperature can cause the bearing to seize due to thermal stress. This invention achieves uniform heat transfer from the lubricating oil at high speeds, preventing the bearing from seizing due to excessive operating temperature.

The invention relates to an inverted pushing installation method for a large converter. A lower section of a converter shell, a middle section of the converter shell and a backing ring are divided into combined modules, an upper section of the converter shell is divided into a first single module, and a tilting device is divided into a second single module; the assembled combined module is hoisted to a jacking adjusting device composed of a hydraulic portal frame and a sliding rail, the first single module is arranged on a hydraulic module vehicle, and the combined module and the first single module are assembled together through cooperation of the jacking adjusting device and the hydraulic module vehicle to form a converter body; the converter main body is downwards transported to a converter mounting position by the hydraulic module vehicle and is mounted in place; and the second single module is integrally lifted and mounted in place through the hydraulic gantry lifting device. Compared with an existing installation method, the method has the advantages of being high in installation efficiency, low in construction cost, high in installation precision, high in safety and reliability, high in automation degree, high in construction equipment universality and the like.

The invention provides a bailey beam bearing strengthening method which comprises the steps that supporting frames are arranged at the connecting positions of bailey beams, the supporting frames are symmetrically arranged according to the midspan, and the heights of the supporting frames are gradually reduced from the midspan to the two ends of the bailey beams; anchor seats are arranged at the two ends of the bailey beam; an inhaul cable is arranged along the free end of the supporting frame, and the two ends of the inhaul cable are introduced into anchor seats; pretension force is applied to the inhaul cables, the inhaul cables apply pressure to the supporting frames, then the pressure is transmitted to the bailey beams, and the bailey beams bear pre-bending. The Bailey beam structure has the beneficial effects that a self-balancing system can be formed through the Bailey beam, the inhaul cables and the supporting frames, internal force distribution is changed, the high tensile property of the high-strength cables can be fully exerted, and the stress performance of the whole structure of the Bailey beam is improved.

This utility model provides an automatic cleaning and packaging device for blister trays, including a main frame, a feeding section, a cleaning section, a packing section, an auxiliary section, and a control section. The main frame includes a base, a transport seat, a cleaning seat, a protective plate, a packaging seat, a dustproof carrier plate, and a compressor. The feeding section includes a feeding mechanism and a clamping mechanism. The cleaning section includes a transport fixing mechanism, an adjustment mechanism, and a cleaning mechanism. The packing section includes a servo motor, an electric telescopic rod, and a vacuum suction cup. The auxiliary section includes a transport calibration mechanism and a lid-mounting mechanism. This utility model features full-process automation, reducing manual intervention. Operators do not need to manually intervene in the tray position, significantly reducing labor intensity. Standardized cleaning processes ensure quality, significantly improving the cleaning pass rate and completely avoiding the risk of secondary pollution caused by manual wiping. Closed-loop environmental control optimizes working conditions, significantly reducing dust concentration in the work area and minimizing the harm of dust to the respiratory system.

The invention belongs to a slipway half-ship sliding system in the technical field of ship construction, and further relates to a sliding method of the slipway half-ship sliding system. Each sliding plate assembly comprises a plurality of sliding plates (A5) which are transversely arranged at intervals, the longitudinally adjacent sliding plates (A5) of each sliding plate assembly are fixedly connected, the opposite sliding plates (A5) in the two transversely adjacent sliding plate assemblies are transversely and fixedly connected through cross beams (A2), outer sliding limiting parts (A6) are arranged on the lower portions of the inner sides of the sliding plates (A5), and the cross beams (A4) are connected with the sliding plates (A5) through connecting parts (A7). According to the slipway half-ship sliding system, the utilization rate of the slipway can be effectively increased, it is guaranteed that ships are continuously carried on the slipway, and it is guaranteed that a stern block of a ship body can safely and reliably slide.

The invention provides a carbonized resin decolorizing and refining method for mixed dibasic acid dimethyl ester, and belongs to the technical field of chemical separation and purification. According to the technical scheme, spherical carbonized resin formed by carbonizing styrene-divinyl benzene polymer resin is used as an adsorbent, and a colored crude product DBE is subjected to decoloration treatment through a fixed bed process. The carbonized resin has extremely high selective adsorption capacity and adsorption rate on colored impurities in DBE, the Pt-Co color number of the carbonized resin can be reduced from 50 or above to 10 or below, the decolorization rate exceeds 80%, and meanwhile the yield of the DBE product reaches 99% or above. And the resin saturated by adsorption is easy to regenerate and can be repeatedly used. The method is simple in process, efficient and environment-friendly, overcomes many defects of a traditional activated carbon decoloration method, and is particularly suitable for industrial refining production of DBE.

The application provides a water plant channel system, which comprises a support module and a channel module; the support module comprises: a plurality of parallel and spaced main beams; a plurality of columns, the columns and the main beams one-to-one constitute a single-frame; a secondary beam, which is horizontally and longitudinally arranged at an outwardly extending end of the main beam; a cantilever; and the channel module is a light thin-wall channel, which is detachably installed on the main beam, the secondary beam and the cantilever and located in the single-frame. The support module retains the main structure of bearing and anti-seismic, removes the wallboard, reduces the dead weight, and can achieve a better anti-seismic target; the light thin-wall channel is detachably installed on the support module, the force transmission path is clear, the deformation and displacement of the channel at the end are enlarged, the pressure relief plate device is excited to drain water, and the'solid-liquid' coupling reaction of the channel during the earthquake is weakened. The formed channel system has good structure and anti-seismic performance, is beneficial to achieving the anti-seismic target, is convenient to install and remove, has low cost, has good equipment and instrument compatibility, and has small construction space limitation.

The application discloses a municipal engineering construction integrated temporary office box house structure, which comprises a mounting frame, four groups of positioning plates are fixedly connected to one side of the mounting frame, wall plates are sleeved in the two groups of positioning plates on the same side, and the wall plates are fixedly connected with the positioning plates on the outer side; a window mounting groove is formed in the middle of one group of wall plates, a window frame is sleeved in the window mounting groove; a first supporting frame is fixedly connected between the two groups of positioning plates in the middle, a rotating groove is formed in the middle of the first supporting frame, a second supporting frame is rotatably connected in the rotating groove, and sticking plates are fixedly connected to the upper and lower sides of the second supporting frame, and the sticking plates are fixedly connected with the positioning plates on the two sides and in the middle; the welding and cutting operations are not complicated; most of the installation work can be completed by one person, the construction period of the box house is greatly shortened, the construction efficiency is improved, the box house can be repeatedly used after being disassembled, and the use cost is reduced.

The utility model relates to a lubricating oil tank oil supply device, an aero-engine and an aircraft, belongs to the technical field of aerospace, and solves the problem that in the prior art, a lubricating oil tank cannot continuously supply oil and ventilate under various postures of the aircraft. The device comprises an oil supply pipe, an oil suction pipe assembly and a breather pipe, the oil supply pipe is arranged in the lubricating oil tank and can rotate around the axis of the lubricating oil tank. The oil suction pipe assembly comprises an oil suction pipe which is vertically arranged on one side of the oil supply pipe. The central axis of the oil suction pipe and the central axis of the oil supply pipe are coplanar. A balance weight ball is arranged at a pipe opening of the oil suction pipe and used for enabling the oil suction pipe to be located below the oil supply pipe. According to the utility model, oil supply and ventilation of the aircraft can be completely and continuously completed in different postures such as diving, climbing and inverted flying.

An automobile center console transferring and mounting manipulator comprises a moving trolley, a lifting arm connected to the moving trolley, a supporting connecting rod connected with the lifting arm, a grabbing mechanism mounted on the supporting connecting rod and a controller. A first rotary brake device and a second rotary brake device for controlling rotation are arranged between the moving trolley and the lifting arms and between the lifting arms through supporting connecting rods; the grabbing mechanism comprises a base, two fixing base plates, a left supporting rod, a right supporting rod, suction cups on the left supporting rod and the right supporting rod, and two clamping air cylinders driving the left supporting rod and the right supporting rod to turn over. The two front dragging claws are respectively arranged at the front ends of the left supporting rod and the right supporting rod; and the rear dragging claws are arranged on the inner side surfaces of the bending parts of the two supporting plates of the base. According to the utility model, the technical pattern of manual carrying and assembling of the traditional automobile center console is solved, and the integration of grabbing, carrying, transferring and mounting of the automobile center console is realized.

The utility model relates to the technical field of transformer heat dissipation, and discloses an oil cooling heat dissipation transformer which comprises a transformer body of a cuboid structure, and a support used for supporting equipment is fixedly arranged at the bottom of the transformer body. The top of the transformer is fixedly provided with a high-voltage bushing which is insulated to the ground due to the fact that a device incoming and outgoing line and a high-voltage circuit penetrate through an object, a shell is fixedly arranged outside the transformer, a heat dissipation oil channel used for heat dissipation is formed in the shell, a mounting hole is reserved in the shell, the shell is connected with a frame through a mounting hole bolt, and the frame is connected with a power supply through a power supply. The transformer cooling device comprises a frame, a condenser is fixedly arranged on one side of the frame, an oil inlet and an oil outlet are fixedly formed in the position, on the frame, of the top end of the condenser, and a fan used for rapid cooling is fixedly arranged on the other side of the frame. And good working conditions can be maintained.

The utility model relates to the technical field of metallurgical mechanical equipment discloses a drag out roller lifting device convenient to maintain, including machine outside centring base and drag out roller support still include rotation transmission mechanism and lifting drive unit, the drag out roller support rotatablely connects on machine outside centring base through a rotating shaft, the rotation transmission mechanism includes a transmission axle, a swing arm and at least one bearing seat, the transmission axle is fixedly installed on the upper plane of machine outside centring base through bearing seat, one end of swing arm is fixedly covered on the transmission axle, and the other end is hinged with the bottom of drag out roller support, this drag out roller lifting device convenient to maintain, through the linear thrust of oil cylinder conversion is the rotary torque to transmission axle, oil cylinder no longer directly bears the partial load and impact load of drag out roller base, and the working condition is fundamentally improved.

The embodiment of the invention provides a high-temperature heat storage-supercritical steam generation system. The high-temperature heat storage-supercritical steam generation system comprises a heat storage body, a supercritical steam generation unit connected with the heat storage body and an intelligent control unit connected with the supercritical steam generation unit. The heat storage body comprises a solid waste-based graded porous carrier and fused salt filled in gaps of the solid waste-based graded porous carrier; the supercritical water vapor generating unit comprises a water vapor generator with a built-in spiral metal pipe and a multi-stage heat exchange runner; the intelligent control unit comprises a digital controller, an axial-flow compressor and a heat exchange pump, the digital controller is connected with the axial-flow compressor, the heat exchange pump and the heat storage body, and the digital controller is configured to dynamically adjust the running states of the axial-flow compressor, the heat exchange pump and the heat storage body.

The utility model relates to the technical field of fabric, in particular to a western-style clothes fabric pressing, cutting and leveling mechanism which comprises a leveling platform, the leveling platform is installed on the top end face of a workbench, a second electric air cylinder is fixedly installed at the bottom end of the workbench, and the output end of the second electric air cylinder penetrates through the workbench to be fixedly connected with the bottom end of the leveling platform. The bottom end of the leveling platform is fixedly connected with one ends of second guide rods, the multiple second guide rods are arranged, and the other ends of the multiple second guide rods penetrate through the workbench to be fixedly connected with a limiting plate. After the whole platform ascends to tighten the fabric, a stable processing plane is formed, the situation that the processing precision is affected by wrinkles and looseness of the fabric is avoided, the tightened fabric can be ironed more smoothly and cut more neatly, the defective rate is effectively reduced, meanwhile, good working conditions are provided for operators, and the workload of repeated operation is reduced.

The application discloses a conveyor head material cleaning device and a material cleaning method thereof, and belongs to the technical field of belt conveyors. The conveyor head material cleaning device comprises a middle frame fixedly connected to the head of the conveyor, a material pushing assembly and a supporting frame fixedly connected to the bottom of the middle frame, and a material receiving disc is fixed on a material falling base surface below the supporting frame. The material pushing assembly comprises a vertical material pushing plate, the bottom end of the material pushing plate is slidingly connected to the disc surface of the material receiving disc, the back surface of the material pushing plate is fixedly connected to the telescopic end of a main material pushing mechanism, and the fixed end of the main material pushing mechanism is fixed to a support on the bottom of the supporting frame. The material falling to the disc surface of the material receiving disc can be pushed by the material pushing plate when the material reaches a certain weight, the scraper material cleaning device and the conveyor do not need to continuously run simultaneously, and the technical effect of intermittently pushing the material is achieved. The problems of high failure rate and high continuous running energy consumption of the scraper material cleaning device when the material falling from the head sweeper of the existing belt conveyor is cleaned are solved.

The utility model discloses a coal bunker dredging electric control device, which relates to the technical field of coal bunker dredging, and comprises an air inlet ball valve, an air inlet connecting piece, an air storage tank, a base and a motor, the air storage tank and the motor are respectively and fixedly arranged on the base, a sounder is communicated between the motor and the air storage tank, the sounder is communicated with a taper pipe, and the taper pipe is communicated with the air inlet ball valve. A Helmholtz resonant cavity is formed in the end, away from the sounder, of the taper pipe and communicates with the coal bunker. The sound generator is driven by the motor to generate sound waves with specific frequency, the sound waves act on blockages in the coal bunker through the taper pipe and the Helmholtz resonant cavity, the blockages are loosened and fall off by utilizing the vibration energy of the sound waves, and compared with a mechanical dredging means, the large-area arching problem can be solved, and the dredging effect is more remarkable.

The invention discloses a multifunctional integrated induction regulation and control filtering distribution transformer device, and belongs to the technical field of distribution network energy conservation and loss reduction and electric energy quality control. The device is composed of a distribution transformer (1), a PWM rectification H-bridge module (2), a protection branch circuit (3), a fundamental wave cascade H-bridge module (4), a harmonic wave H-bridge module (5), a harmonic wave connection reactor (6), a fundamental wave connection reactor (7), a system access point (8) and a power supply winding (9). After the distribution transformer reduces the voltage of an alternating current power supply, the other windings except the power supply winding are compensation windings. The N PWM rectification H-bridge modules are divided into two groups, the direct current bus of one group is connected with the harmonic wave H-bridge module and then connected with the harmonic wave connection reactor, and the direct current bus of the other group is connected with the N-1 fundamental wave cascade H-bridge modules and the fundamental wave connection reactor. According to the filtering distribution transformer device, decoupling control among different frequency modules is achieved, the control precision is improved, meanwhile, the overall switching loss of the device is reduced, and the reliability is improved.

The utility model discloses a kind of transdermal oxygen partial pressure sensor fixing ring, including bush, oxygen-permeable membrane, gasket, metal protective sheet, fixed ring upper body and fixed ring lower body, the fixed ring upper body inner end face is designed with the thread for assembling with transdermal oxygen partial pressure sensor, bush, oxygen-permeable membrane, gasket, metal protective sheet are assembled in fixed body interior, gasket end face is equipped with the annular circular groove matched with the boss on bush.This utility model patent solves the problem that fixed ring is frequently replaced in original technical scheme, oxygen-permeable membrane is easily damaged, not easy to operate in assembly process.After the design improvement of utility model, the use replacement of transdermal oxygen partial pressure sensor fixing ring is more convenient, assembly process is simpler and more easy to operate, the oxygen-permeable membrane inside transdermal oxygen partial pressure sensor fixing ring is designed with protection function, ensure the safety when equipment works, improve the convenience, safety, stability of transdermal oxygen partial pressure sensor fixing ring, also improve various effects when fixed ring assembly is used.

The embodiment of the present application provides a hydrogen flame chromatograph valve island type gas path constant temperature control device and a control method, and belongs to the technical field of hydrogen flame chromatographs. The hydrogen flame chromatograph valve island type gas path constant temperature control device is characterized in that the device comprises: a plurality of gas path units arranged on a device main body; each gas path unit comprises a plurality of gas path outlets / inlets arranged on the surface of the device main body; an electromagnetic unit is used for adjusting the gas path direction of gas in each gas path pipeline; a constant temperature unit is arranged in the device main body and is used for adjusting the temperature of required gas for FID analysis in each gas path pipeline; the electromagnetic unit and the constant temperature unit are both connected to a control unit, and the control unit is used for executing the control of the electromagnetic unit and the constant temperature unit based on the current required parameters of FID analysis. The present application solves the problem that the existing hydrogen flame chromatograph cannot guarantee that the gas supply state meets the best working state of the chromatograph during the test process, thereby improving the detection result accuracy.