738results about How to "Design science" patented technology

The present invention relates to a heat pipe type spherical disc type solar energy light and heat collector, belonging to the solar energy heat collection establishment technical field, which includesa spherical reflecting mirror disposed on the solar energy optical tracker system and a steam drum supported above the reflecting mirror. The steam drum is made up of an inlet and an outlet and stored up with working medium. A heat pipe type vacuum heat collecting pipe is arranged on the focusing part of the spherical reflecting mirror. The heating zone of the heat pipe type vacuum heat collecting pipe is positioned on the condensing wimble of the spherical reflecting mirror. The cooling zone of the heat pipe type vacuum heat collecting pipe is inserted into the working medium of the stream drug. The invention has simple technology, low cost, scientific design and easy to generalization and application. It has been found that the invention has fast tempera the rise, excellent heating effect, high efficiency, suitable for large scale industrialization production, secure and reliable performance.

The water soluble soldering flux specially for lead-free soldering material consists of boric acid and organic acid activator 5.0-10.0 wt%, non-ionic surfactant or cationic surfactant 0.1-1.0 wt%, co-solvent 8.0-20.0 wt%, filming agent 0.1-1.0 wt%, corrosion retardant 0.1-0.5 wt%, except deionized water. The compounding process includes the following steps: mixing co-solvent and partial deionized water, adding filming agent under stirring, adding the rest deionized water, activator and surfactant after dissolving, adding corrosion retardant while stirring to dissolve, stilling, and filtering to obtain the filtrate as the soldering flux. The water soluble soldering flux has excellent soldering assisting performance on lead-free soldering material, environment friendship and other advantages.

The invention provides an underwater topography measurement system as well as a manufacturing method and a measurement method. The underwater topography measurement boat is composed of at least one measurement boat, a standard station, main manipulation equipment and remote control equipment, wherein the standard station, the main manipulation equipment and the remote control equipment are implemented and manipulated on the bank; a plurality of measurement boats can be simultaneously manipulated by the standard station, the main manipulation equipment and the remote control equipment; each measurement boat is composed of a boat body, a control system, a navigation direction control system, a positioning system, a measurement system and a communication system; the whole boat body of each measurement boat is independently composed of a boat head and a boat body by sections; the lower end part of an equipment mounting column is fixedly provided with a probe of a depth sounder; a bearing cabin of the boat body is internally provided with a data communication radio station, a GPS (Global Positioning System) radio station, the depth sounder, a storage battery pack, a power supply module and an industrial control computer; an engine is provided with a starting engine; and the starting engine is composed of an igniting device, a shutdown device and a starting and shutdown detection circuit. The underwater topography measurement boat disclosed by the invention has the advantages of scientific design, reasonable structure, simplicity in operation, convenience and flexibility, convenience for installation and detachment and convenience for transportation and transferring, so that the underwater topography measurement boat is adapted to underwater measurement of various different water areas and the automation of the underwater measurement is realized.

The invention discloses a water-based environment-friendly finishing paint, which is prepared from the following compositions in part by weight: 20 to 70 parts of water borne acrylic resin solution of which the solid content is 30 to 80 percent and/or 20 to 70 parts of water borne epoxy resin solution of which the solid content is 30 to 80 percent, 4 to 10 parts of water borne amino resin solution of which the solid content is 60 to 98 percent; 1 to 5 parts of organic amine, 0.2 to 2 parts of wetting and leveling agent, 0.2 to 2 parts of thickener, 0.1 to 0.8 part of defoaming agent, 1 to 5 parts of adhesion promoter, 0.2 to 5 parts of catalyst, 10 to 30 parts of alcohol diluting solvent and/or 1 to 5 parts of nontoxic ether diluting solvent, and 20 to 50 parts of deionized water, wherein the catalyst is one or more of ammonias, alcohols and benzenesulfonic acids. The water-based environment-friendly finishing paint has the advantages of wide applicable range, high hardness, good flexibility, strong adhesion, good scratchproof performance, and environmental protection. Simultaneously, the invention also discloses a method for preparing the water-based environment-friendly finishing paint.

The automatic stereo storehouse for plates includes bracket type shelves with multilayer trays; lane tracked piling crane with forks and capable of lifting vertically and accessing trays horizontally; peripheral mechanical facilitates for storehouse operation; and automatic storehouse managing and controlling system. It features the piling crane with two parallel forks driven with the same driving unit, and the trays with space for hiding the forks. Compared with available technology, the present invention is scientific, novel, reasonable and smart in structure, and has high loading volumetric fraction, low cost and other advantages.

The invention provides a method for vehicle safety remote control and diagnosis and a system thereof. A control and diagnosis terminal and a cloud side instruction server perform first identity authentication and key agreement; a vehicle-mounted terminal and the cloud side instruction server perform second identity authentication and key agreement; and the control and diagnosis terminal establishes communication connection with the vehicle-mounted terminal through the cloud side instruction server and performs remote control or remote diagnosis on a vehicle according to the control and diagnosis instruction of a user. Different secret keys are adopted between the control and diagnosis terminal and the cloud side instruction server and between the vehicle-mounted terminal and the cloud side instruction server and so that the information security of remote control and diagnosis information can be guaranteed, and the problem of security insufficiency in the prior art can be effectively solved. The system for vehicle safety remote control and diagnosis has the advantages of being scientific in design, high in practicality, convenient and rapid, high in security and high in reliability.

The invention discloses a vibration reduction control device of a tuned mass damper. The vibration reduction control device of the tuned mass damper comprises a supporting bracket, a mass block and a damping element, wherein extension springs are mounted between the periphery of the mass block and the supporting bracket in a uniform distribution manner; the extension springs are arranged horizontally; one end of every extension spring is connected with the supporting bracket, and the other end of the corresponding extension spring is connected with the mass block; the damping element is arranged between the bottom of the mass block and a bottom plate of the supporting bracket; the mass block comprises multiple steel plates, and is in a cubic or cylindrical integral structural shape, when the mass block is cubic, the extension springs are uniformly distributed on the four side surfaces of the mass block, and when the mass block is cylindrical, the extension springs are uniformly distributed on the circumferential side surface of the mass block in an equal-angle manner. The control device is scientific in design, convenient to operate and use, low in cost, good in economical efficiency and extremely high in vibration reduction sensitivity, can be used for controlling horizontally universal (randomly directional) vibration, and is applicable to a low-frequency state, a medium-frequency state and a high-frequency state at the same time; further, a frequency range can be regulated through adjusting the rigidity of the extension springs or the weight of the mass block or adjusting the pendulum length of a pendulum rope.

The invention discloses a wireless remote movable intelligent green grain storage monitoring system and relates to the technical field of grain storage and remote control. The wireless remote movable intelligent green grain storage monitoring system comprises an intelligent movable terminal, a base station server, a GSM/GPRS module, a central module and a branch module, wherein the intelligent movable terminal is connected with the base station server through a mobile communication network, the base station server is connected with the GSM/GPRS module through the mobile communication network, and the GSM/GPRS module is connected with the central module and is connected with the branch module through an interface. The wireless remote movable intelligent green grain storage monitoring system is scientific and reasonable in design, powerful, capable of achieving modern green grain storage and all-weather wireless remote movable intelligent monitoring and control of the grain storage reliably in real time, free of limitation of geography positions, environments, seasons and time, flexible, convenient to use, simple in operation, low in cost, and capable of achieving automatic collection and statistics of green grain storage information and providing a scientific basis and effective measure for intelligent control and management.

An optical adjusting mount capable of movably processing all-solid-state high power lasers comprises a frame, a support and a fine adjustment screw pair, wherein a lens hole of the frame is internally equipped with a baffle ring, a retainer ring is disposed on the front of the baffle ring, four tension spring holes are positioned on the frame, the back face of the frame is equipped with a V-type groove, a concave groove and a ball tapered-groove, the side face of the frame is equipped with a cooling water inlet and an outlet, the support is equipped with four tension spring holes, two holes for the fine adjustment screw pair and a ball tapered-groove which correspond to the frame, the frame and the support are connected through tension springs, each of the ball tapered-grooves of the frame and the support are inlaid with a ball, the fine adjustment screw pair is respectively mounted in the two holes for the fine adjustment screw pair of the support, the front ends of the fine adjustment screw pair are respectively located in the V-type groove and the groove. The optical adjusting mount has the advantages of scientific reasonable design, compact structure, low material consumption and low cost, further utilizes the baffle ring made of low-hardness fine heat conductivity red copper to press the lens on the end face, thereby effectively reducing the lens temperature, and utilizes the V-type groove and the ball for positioning, thereby realizing stable and reliable groove limiting.

The invention provides an integrated managing and controlling system and a method of mass production enterprises in transportation construction industry; the system comprises two parts, namely, hardware and software; the hardware includes a plurality of production devices, a plurality of production device terminal computers, a plurality of data collectors, a plurality of controllers, a plurality of video devices, a plurality of dippers or GPS satellite positioning devices, a plurality of service management terminal computers, a plurality of monitoring management terminal machines, a service management server and a monitoring mechanism server; the software includes data collecting software, service management software, monitoring management software, service management database software andmonitoring management database software; the integrated managing and controlling system of mass production enterprises is divided into three layers based on structure; the first layer is a data collecting layer, the second layer is a service management layer and the third layer is a monitoring management layer. The system and the method are scientifically and rationally designed, and creative, not only improve the production automation level and production continuity, but also guarantee the systematicness, visibility and reliability of intelligent operation of the whole production; meanwhile,the system and the method can prevent resource loss, reduce production cost and improve economic benefits.

The present invention provides a digital implant and oral implant locator design method and system, the method includes the following steps: taking a CT film of the patient's oral cavity, using the CT image to construct a three-dimensional model, establishing an all-round implant surgery simulation environment, and according to the implant The implant information database, select the applicable brand and model of the implant, manually design the implant position, and use the measurement tool to evaluate the implant position, import the scan data of the plaster model, and place the plaster model according to the selected reference point. Align with the 3D model, evaluate the position of the implant according to the standard jaw occlusal relationship, generate revision opinions, extract the basic information of the implant, and process the oral implant positioner. The present invention performs simulated surgery visually and scientifically before the operation, and designs and manufactures an oral implant positioner for dental implant surgery according to the results of the simulated operation, which makes the design of the oral implant positioner scientific and digital, and improves the operation efficiency. success rate.

The invention discloses a thermal management system of an electric automobile, comprising a temperature sensor, a heating and cooling device and a central processing unit, wherein the temperature sensor is used for acquiring the temperature of components generating the raising and the drop of temperature in the electric automobile; the heating and cooling device is used for generating a heat source and a cold source which are transmitted to components needing heating and cooling and is connected with the signal output end of the central processing unit through a control switch; and the central processing unit is used for receiving a signal of the temperature sensor and calculating and outputting the control signal to the heating and cooling device. In the invention, the temperature conditions of various components can be detected by using the temperature sensor and are transmitted to the central processing unit which controls the temperature in time so as to ensure that the temperatures of various components are in a proper range. The system not only can be used for monitoring the temperature of batteries, but also can be used for monitoring the temperature of a motor and a motor controller, thereby avoiding the motor and the motor controller from being damaged due to overhigh temperature. The system can also be used for monitoring the temperature in a carriage and ensures thecomfort degree of the moving space of people.

The invention relates to a turning mechanism lifting solid garage, in particular to a comb-type turning mechanism garage. The invention comprises parking places of one unit, a lifting comb 1, a fixed comb 2, a turning mechanism 3, a turning drive set 4, a turning support 5, tracks, and detection photoelectricity 9. At least four guide bars 7 and at least two lifting push rods 8 are arranged on the lifting comb. Vehicles are taken and deposited in the way that the vehicles are lifted and lowered down and turn to-and-fro under the guidance of the guide bars 7 and the lifting push rods. The guide bars 7 and the lifting push rods 8 are rotated by 180 degrees along the tracks so that the lifting comb is lifted and lowered down automatically in the vertical direction under the condition that no motor is provided for drive. Automobiles run and stop on the comb to be parked and taken, turned, lifted and lowered down in the vertical direction. The comb-type turning mechanism garage has the characteristics of dispensing with a motor for driving the lifting comb to be lifted and lowered down in the vertical direction, automatic guide, little occupied space, auto-control, fast vehicle parking and getting as well as turning, simple structure, energy conservation, and reduced exhaust. The garage dispensing with motor for drive is an invention originated in the garage industry at home and abroad.

The invention discloses a wedge-shaped draper-type press filter which consists essentially of a chassis, a pressing area, a driving device, a feeding device, a scrapper assembly, a deviation-rectifying device, a rinsing device and a water receiving device. The structure of the wedge-shaped draper-type press filter is characterized in that the pressing area is a wedge-shaped pressing area with an included angle more than zero degree but less than 15 degrees between an upper filter strip and a lower filter strip; the wedge-shaped pressing area is divided into an upper press area and a lower press area; respective tension band and filter strip of the upper press area and the lower press area are stacked and wrapped outside respective press roll in parallel; the tension band is stuck to the press roll and the filter strip is firmly stuck outside the tension band; the press rolls of two press areas are arranged in a counter pressure way. The draper-type press filter of the invention adopts a single wedge-shaped press area, changes press dehydration technique of the prior art that adopts a plurality of press rolls to enwind and operate in snaking way, realizes that the press roll operates press dehydration in a counter pressure and liner way, greatly reduces the abrasion of the filter strips caused by tension, effectively prolongs the service life of the filter strips and can reduce operation energy consumption of the press filter.

The invention relates to a reconstruction method for a hearth three-dimensional temperature field. The method comprises the following steps that: a burning flame colorized image can be obtained through a CCD (Charge Coupled Device) image pickup system and a computer processing system, based on R,G and B pixels of a flame image, two-dimensional temperature of a burning flame image can be obtained through a neural network BP algorithm, an inverse solution of a radiative transfer equation can be combined, and three-dimensional temperature distribution of a burning flame in a hearth can be further obtained. The reconstruction method has the advantages of scientific design and creativeness, three-dimensional characteristic of coal dust in a large-scale boiler can be fully embodied, and the reconstruction method is significant to safety, economic benefit, clean operation and the like of the boiler. The system disclosed by the invention has the advantages of compact structure, less material consumption, long service life, stable and reliable performance, convenient for maintenance and high measurement precision of three-dimensional temperature, and flame combustion condition in the boiler can be controlled in time.

The invention relates to a composite type self-adhesion water stop band, a manufacturing method and a construction method. The main body of the water stop band base material is a section bar on the whole and is composed of an expanding hole, an expanding band, water stop band substrates, a concave binding slot and a water stop rib. The middle part of the main body of the water stop band base material is provided with the expanding hole, the middle part in the expanding hole is provided with the expanding band, the two end parts of the main body of the water stop base material are provided with water stop band substrates, the concave binding slots are arranged on the water stop substrates, a binding layer is arranged in the concave binding slots and adopts non-vulcanization butyl rubber, ionic reaction is generated between the binding layer and calcium oxide in concrete, the binding layer and the calcium oxide are penetratively bonded together to form an impermeable layer to stop leakage. The invention has scientific design and reasonable structure, and solves the problem that water seepage easily occurs to the common water stop band as the concrete binding is unstable; when the concrete architecture generates elastic deformation under various loads, the expanding hole and the expanding band play the function of reinforcing and sealing, therefore, the invention can be widely applied to cast-in-place concrete construction operation of buildings and structures such as bridge opening, tunnels, hydropower stations and the like.

The invention discloses a soldering flux, prepared by the following components by weight percent: 0.1-3% of organic acid activator, 0.01-2% of surfactant, 1-4% of wetting agent, 0.01-0.1% of corrosion inhibitor and 90.9-98.88% of film-forming agent. The preparation method thereof includes: (1) in weight percent, organic acid activator, surfactant, wetting agent, corrosion inhibitor and film-forming agent are accurately weighed; (2) the film-forming agent is added into a kettle with heating function and is heated to 110 DEG C, and mixing to be uniform is carried out; (3) slaw warming to 140 DEG C is carried out, the organic acid activator, surfactant, wetting agent and corrosion inhibitor are added once in ratio at 140 DEG C, and stirring is carried out for 0.5h; (4) cooling is carried out, thus obtaining the soldering flux finished product. The invention is mainly used in air conditioning and refrigeration industries, and the soldering flux can cause a welding ring to completely meet the welding requirement of the existing copper aluminium composite tube.

The invention provides a honeysuckle flower picking machine which comprises a machine shell, an air blower, a motor and N pairs of parallel rotating shafts, wherein the machine shell is provided with a feed port and an air port; the air blower, the motor and the N pairs of parallel rotating shafts are arranged in the machine shell; an air outlet of the air blower is connected with the air port; each rotating shaft is sleeved with a multi-ridge soft sleeve; one sides of the N pairs of rotating shafts are all arranged corresponding to the feed port; one ends of the rotating shafts are provided with gears; the gears of the N pairs of rotating shafts are sequentially meshed; one of the rotating shafts is driven by the motor; N is a natural number which is not less than 1; an adjusting sliding chute is arranged in the machine shell or on the machine shell; both ends of at least one rotating shaft of each pair of rotating shafts are respectively provided with adjusting slide blocks; the adjusting slide blocks are arranged in the corresponding adjusting sliding chute; and magnets are respectively arranged in the adjusting sliding chute and on the adjusting sliding chute. The honeysuckle flower picking machine provided by the invention has the advantages of scientificity in design, flexibility in picking without injury, high picking efficiency, adjustable picking speed and convenience for material taking.

The invention discloses a quick installation lock of an LED mould. The quick installation lock is characterized by comprising a lock box body with bolt extension windows at two ends. A locking mechanism, capable of enabling the bolts at the two ends to stretch and move synchronously and linearly, is arranged in the lock box body. The bolts are lengthened bolts which can extend out through the windows at the two ends of the lock box body respectively. A shaft lever capable of operating the locking mechanism is vertically exposed on the front surface of the lock box body. The lock further comprises a lock catch matched with the lengthened bolts. The operation of the quick installation lock of the LED mould is performed on the front surface of the LED mould. A box body at the back of a steelstructure box of a display screen is unnecessary to open any longer during installation and maintenance of the LED mould, furthermore, screws are not used any longer. The lock disclosed by the invention is beneficial to overcoming of the disadvantages that the module is installed depending on a lot of screws to be fastened one by one, time and labor are wasted during installation and disassembly,and the operation is inconvenient in the prior art. According to the invention, the LED mould can be installed on and disassembled from the steel structure box of the LED display screen conveniently and rapidly. The installation speed of the LED mould is greatly improved. The working efficiency is improved. Furthermore, installation working intensity and installation screw consumption can be reduced.

The invention relates to an unmanned aerial vehicle recovery damping airbag. The unmanned aerial vehicle recovery damping airbag comprises a vehicle body, airfoils and an airbag buffer device, the airfoils are fixedly mounted on the vehicle body, and the airbag buffer device is mounted on the vehicle body and comprises a collection box, an air inlet and outlet pipeline, an air inlet fan and an airbag body. The unmanned aerial vehicle recovery damping airbag is specifically structurally characterized in that the collection box with a lower opening is fixedly mounted on one airfoil, the air inlet and outlet pipeline is mounted between the collection box and the vehicle body, one end of the air inlet and outlet pipeline is connected with the air inlet fan fixedly mounted on the vehicle body, and the other end of the air inlet and outlet pipeline extends into the collection box and is hermetically connected with the airbag body folded in the collection box. The airbag comprises an inflatable bag body made of inelastic, soft and airtight materials, and the airbag buffer device can not only absorb and release sufficient impact energy and reduce landing impact load of an unmanned aerial vehicle, but also avoid rebound during landing, so that the unmanned aerial vehicle can descend and ground stably during landing and lands safely.

The invention relates to an on-line automatic assembly device for an H-shaped steel with a corrugated web and belongs to the field of mechanical equipment. The device disclosed by the invention comprises a portal, a runoff table, a hydraulic clamping system, an automatic spot welding machine, hydraulic power and a control system, wherein the hydraulic drive clamping system consists of a corrugated web, flange plates and an assembled H-shaped steel clamping device, the corrugated web and the flange plates are clamped in an up and down corresponding mode, the assembled H-shaped steel is clamped from two sides in a left and right corresponding mode, after clamping and assembly, spot welding is carried out with the automatic spot welding machine, and the spot-welded H-shaped steel is output from the station along with the runoff table of the H-shaped steel with the corrugated web. The on-line automatic assembly device disclosed by the invention has the outstanding characteristics that the hydraulic clamping device and the runoff table are matched concertedly and operated in balance, for example, a hydraulic clamping roller row and a non-started state transmission roller row constitute the H-shaped steel clamping device, a transmission roller row and a non-started state hydraulic clamping roller row constitute the runoff table, and double functions and two effects are realized, so that the purpose of the on-line automatic assembly device is successfully achieved by accurate and balanced coordination.

The invention relates to a device for measuring the diameter of a large shaft working piece by non-contact-type online measurement, which solves problems of heavy detection tools, inconvenient operation and low measurement precision and measurement efficiency during precisely measuring a machined workpiece with large diameter. Three guide rails are arranged on a tripod head of a measurement base and connected by screws and threads; an upright post is mounted on the base and sleeved with four guide rail sliding blocks and provided with locking screws; sliding plates which are fixed on upper and lower guide rail sliding blocks have same length and provided with respective sensors connected by locking screws; two guide rail sliding blocks sleeved in the middle of the upright post are provided with sliding plates and sensors connected by locking screws; the length of sliding plates of the middle guide rail sliding blocks is smaller than the upper sliding plate and the lower sliding plate; the sensors are connected with a computer by cables; symmetric supporting seats are fixedly mounted on a calibration base, connected with a rotating shaft and provided with bearings; the center of the rotating shaft is provided with a large disc and a small disc the diameters of which are different; an adjustable-speed motor is connected with a bracket and fixed on the calibration base; the shaft of the adjustable-speed motor is connected with one end of the rotating shaft the other end of which is connected with a rotating speed coder fixed on the bracket of the calibration base; and a measurement base and the calibration base are connected by a large platform.

The invention relates to an epoxy-pouring full-insulation solid isolating switch, which comprises an isolation body, a grounded contact, an isolation contact, a middle contact, an isolation moving contact, a driving screw rod, a fixed nut and a driving gear part, wherein the grounded contact and the isolation contact are arranged at two ends of the isolation body respectively, the middle part of the isolation body is provided with the middle contact, the upper end of the isolation contact is connected with a bus contact through a bus-bar, the bus contact is arranged on the top of the isolation body, and the isolation moving contact is always contacted with the middle contact through a watch chain sensing finger. The isolation switch slides between two positions of the middle contact and the isolation contact or the middle contact and the grounded contact to form the conduction or the isolation grounding of the isolating switch. The entire isolating switch is poured into a fully-sealed integral structure with epoxy resin.

A cyclic treating system for the working liquid used for electrospark machining is composed of liquid tank, oil tank, filter, connecting pipelines, and the pumps and control valves in the pipelines, and features that an under-flowing magneto-hydraulic cyclone separator is parallelly connected with the pipeline between liquid tank and filter. It can separate out more than 85% of ferromagnetic or non-ferromagnetic scrap from said working liquid in in-line mode.

The invention relates to a self-sealed deodorization overflow-prevented floor drain. The principal part of the floor drain is set a bevel technology imbricated plate that has a knock-down block-type discharging pipe with tongue in it. There is sealed cushion at the bottom of the discharging pipe, and the dummy club matched to the tang on the inner wall of corresponding to the principal part of the floor drain is set outside of the pipe. Inner the discharging pipe there is discharging clamp plate with axial sleeve that has water leakage hole and an active discharging sewage storage pot. In the axial sleeve there is a clamp plate permanence magnet. The discharging clamp plate connects to the adjusting axial sleeve by screw. Lifting shaft is set in the adjusting axial sleeve and its top has lifting shaft permanence magnet. The self-sealed tie plate is connected to lining plank by locknut. The invention has a wide using foreground.

The invention belongs to the field of groundwater pollution remediation. A purpose of the invention is to provide an in-situ oxidation circulation extraction remediation system and a remediation method for organic contaminated underground water. According to the system and the method, the real-time monitoring and evaluation of the in-situ oxidation remediation effect of organic polluted underground water can be realized, the agent adding frequency is effectively guided, the secondary pollution risk is reduced, the agent cost is saved, and the construction period is shortened. According to thetechnical scheme, the in-situ oxidation circulation extraction remediation system for organic polluted underground water comprises an in-situ oxidation system, a circulation extraction system and a monitoring system, wherein the circulation extraction system comprises an extraction well arranged in an organic pollution area, an injection well arranged around the extraction well, at least an extraction pump arranged in the extraction well, at least an extraction pipe extending into the extraction well and communicated with the extraction pump, and a circulation injection pipe extending into theinjection well and communicated with the extraction pipe.

The invention provides an efficient water-cooling argon arc welding gun. The efficient water-cooling argon arc welding gun is composed of a handle, a gun head body, a gun head body protecting sleeve, a rear cap, a tungsten electrode rod, a tungsten electrode clamp, an inner heat insulation sleeve, an outer heat insulation sleeve, an outer connection sleeve, a spray nozzle connection ring and a ceramic spray nozzle, wherein the middle of the handle is provided with a gas inlet pipe, a water inlet pipe and a water outlet pipe; the right end of the handle is connected with a machine head body outer sleeve covering the exterior of the gun head body; the lower end of the gas inlet pipe is connected with a gas inlet hole in the side face of the upper end of the gun head body; the gas inlet hole communicates with a vertical through hole in the center of the gun head body; the tungsten electrode clamp is arranged in the middle of the vertical through hole; the tungsten electrode rod penetrates a middle hole of the tungsten electrode clamp; an annular groove is machined in the middle of the outer circle of the gun head body; the exterior of the annular groove is closely sleeved with the inner circle of the inner heat insulation sleeve, and the annular groove is closed into a water-cooling sleeve; the water inlet pipe and the water outlet pipe communicate with the water-cooling sleeve; the outer heat insulation sleeve is arranged outside the inner heat insulation sleeve; the exterior of the outer heat insulation sleeve and the inner circle at the upper end of the ceramic spray nozzle are connected together in a sleeving manner; the outer connection sleeve is arranged at the lower end of the gun head body protecting sleeve; the spray nozzle connection ring is connected to the lower end of the outer connection sleeve and connected with the outer circle at the upper end of the ceramic spray nozzle in a thread screwing manner; and the rear cap is arranged at the top end of the gun head body.

The invention discloses a VOC (volatile organic compound) waste gas treatment device for pharmaceutical and chemical industry. The VOC waste gas treatment device, along a waste gas treatment process, sequentially comprises an acid mist adsorption tower, an active carbon adsorption bed device, a main exhaust fan and a chimney; the active carbon adsorption bed device is further connected with a catalytic combustion device; the catalytic combustion device is connected with a desorption fan and a spraying tower; one end of the desorption fan is connected with the tail end of the catalytic combustion device; the other end of the desorption fan is divided into two branches, wherein one branch is connected with the tail end of the active carbon adsorption bed device, and the other branch is connected with a starting end of the spraying tower; the tail end of the spraying tower is connected with the main exhaust fan; and the acid mist adsorption tower, the active carbon adsorption bed device, the main exhaust fan, the catalytic combustion device, the desorption fan and the spraying tower are respectively connected with a PLC (programmable logic controller) control system. The invention further discloses a VOC waste gas treatment method for the pharmaceutical and chemical industry. The VOC waste gas treatment device and the VOC waste gas treatment method further have the characteristic of removing other impurities in addition to a function of removing VOC in the waste gas; besides, the waste gas is adsorbed by active carbon, treated by the catalytic combustion device and washed by the spraying tower, so that up-to-standard discharge is completely reached.

The invention discloses a hydrogel injection of self-crosslinking hyaluronic acid and composite collagen of the self-crosslinking hyaluronic acid and an application of the hydrogel injection. The structure of the injection is shown as a formula I. According to the invention, a sulfydryl modified natural material or a synthetic polymer and a double bond-containing compound modified natural materialor a synthetic polymer are subjected are mixed with a protein natural polymer material or a derivative of the protein natural polymer material without participation of other cross-linking agents forloading cells, drugs, protein active factors and other bioactive substances, and the injectable double-crosslinking composite hydarogel injection loaded with bioactive substances is prepared under action of a Michael addition reaction. The modification method provided by the invention is simple and feasible, and the obtained modifier has good biocompatibility. The injection type double-crosslinking composite hydrogel has good reaction rate controllability, mechanical properties and biocompatibility, a good foundation for application of the injection type double-crosslinking composite hydrogelin injection type hydrogel is laded, and an application prospect in the aspect of bone/cartilage defect filling is also exhibited.

The invention discloses a vertical slippage-type stereoscopic garage with a rotatable device. The invention relates to a mechanical stereoscopic parking garage which comprises a laneway, multiple layers of car storage garages located on one side or two sides of the laneway, a parking device installed in the laneway and a carrying device. The garage is improved in that the parking device comprises a fixation frame, a lifting device, a translation device and the rotatable device; the fixation frame is installed in the laneway; the fixation frame comprises two parallel vertical frames located on the width direction of the multiple layers of car storage garages as well as horizontal frames installed on tops of the two vertical frames; the lifting device is installed between the two vertical frames and can be moved vertically along the vertical frames; the translation device is installed on the lifting device and can be moved along the width direction of the lifting device; the rotatable device is installed on the translation device and can make circular motion on the translation device; and the carrying device is used to carry cars at parking spaces of the multiple layers of car storage garage and can be moved back and forth on the rotatable device. The garage disclosed by the invention has the advantages that three-dimensional synchronous carrying of vertical moving, translation and rotation can be achieved; and carrying efficiency and the access speed during use are greatly increased.