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112results about How to "A wide range of environments" patented technology

Low-density carbon fiber hard insulation quilt and preparation method thereof

The invention relates to a preparation method of low-density carbon fiber hard insulation quilt. According to the preparation method, carbon fibers are chopped to 3-30 mm and carded into broken filaments by a carding machine, felts are prepared, 2-40 layers of felts are composited into one felt unit through needle-punching with a needle-punching method, and the needle-punching density is 2-50 needles/cm<2>; glue is sprayed to single surface or double surfaces of each felt unit with a mist spraying method, and felt units after glue spraying are stacked with felt units or protective films; the stacked material are subjected to hot pressing, carbonization and purification sequentially, a primary carbon fiber hard insulation quilt product is obtained, and a product required by a high-temperature furnace is produced through machining. The low-density carbon fiber hard insulation quilt prepared with the method comprises a plurality of felt unit layers which are bonded together; each felt unit layer comprises a plurality of felt layers which are connected together through needle punching. The preparation process is simple, and the prepared insulation quilt has the advantages of low density, good thermal insulation performance, low cost and wide application environment.
Owner:QINGDAO ADVANCED GRAPHITE MATERIALS CO LTD

Welding process for red copper and stainless steel dissimilar materials

The invention discloses a welding process for red copper and stainless steel dissimilar materials. The welding process comprises the following steps of: (A) machining grooves on the opposite sides of a red copper component and a stainless steel component, cleaning foreign matters on the edges of the grooves, placing the red copper component and the stainless steel component on the same plane for pairing, and reserving a gap; (B) performing before-welding preheating on one side of the red copper component at 600 to 680 DEG C; (C) tackingperforming point fixing in a plurality of positions between the red copper component and the stainless steel component according to a tacking sequence; (D) welding the red copper component and the stainless steel component by adopting shielded metal arc welding direct current electrode positive; (E) heating a welding joint to 130 to 180 DEG C after the red copper component and the stainless steel component are welded, cooling the welding joint to room temperature, and performing dehydrogenation treatment to reduce hydrogen content in a welding seam; and (F) after the dehydrogenation treatment and cooling, performing stabilization treatment on one side of the stainless steel component at 840 to 890 DEG C, and quickly cooling the stainless steel component to reduce the formation of chromium carbide and improve the plasticity and toughness of the welding seam.
Owner:PETROCHINA CO LTD

Solvent-resistant nanofiltration membrane and making method thereof

The invention relates to the technical field of membrane separation, and provides a solvent-resistant nanofiltration membrane and a making method thereof. The solvent-resistant nanofiltration membrane has chargeability, and is an integrated flat or hollow fiber solvent-resistant nanofiltration membrane; or the solvent-resistant nanofiltration membrane has chargeability, and comprises a separation functional layer and a supporting layer which is positioned below the separation functional layer. The solvent-resistant nanofiltration membrane produced in the invention can be a flat membrane, and also can be a hollow fiber membrane. Cross-linking treatment realizes good solvent resistance and wide use environment range, and the solvent-resistant nanofiltration membrane can be applied to the treatment of industrial wastewater containing organic solvents, and especially has high resistance to strong-polarity organic solvents. The limitation that existing commercial nanofiltration membranes can not be used in water containing the strong-polarity organic solvents is solved in the invention, and the application of the nanofiltration membrane can be developed to the petrochemical engineering industry and the field of treatment and reuse of industrial wastewater containing organic solvents.
Owner:DALIAN UNIV OF TECH

Internal respiration air bag balanced type anti-explosion and anti-corrosion method and lamp of anti-explosion electric apparatus

The invention relates to an internal respiration air bag balanced type anti-explosion and anti-corrosion method of an anti-explosion electric apparatus. A loose air bag is connected to a sealing shell so as to ensure that the internal space of the sealing shell is isolated from the external environment without pressure difference. The invention also relates to an internal respiration air bag balanced type anti-explosion and anti-corrosion lamp which comprises a lamp body and is characterized in that the sealing shell of the lamp body is connected with the loose air bag to ensure that the internal space of the sealing shell is isolated from the external environment without pressure difference. The air bag is an external air bag, the inner cavity of the external air bag is communicated with the inner cavity of the sealing shell; or the air bag is an internal air bag, and the inner cavity of the internal air bag is communicated with the external environment through a connecting pipe. The invention can realize the free respiration with the external environment without pressure difference and does not have the problem of gas or dust fog exchange in the environment; and the air bag is used as a respirator arranged in the electric apparatus and has remarkable anti-exploration and anti-corrosion property.
Owner:杨一波 +1

Switch cabinet

The invention provides a switch cabinet comprising a bus room, an instrument room, a mechanism room, a cable room, a switch room and a pressure-releasing channel. The front cabinet of the switch cabinet is formed by the instrument room, the mechanism room and the cable room. The rear cabinet of the switch cabinet is formed by the bus room, the switch room and the pressure-releasing channel. The switch room is internally provided with, from the top to the bottom in turn, an upper inlet wire insulator group, a circuit breaker assembly, a grounding switch and a lower outlet wire insulator group. Function room areas in the front cabinet and the rear cabinet are distributed in a step way. The circuit breaker assembly comprises a supporting frame, a circuit breaker, an operation member and a sealing member. When the circuit breaker assembly is arranged in the switch cabinet, the switch room is sealed by the sealing member. The circuit breaker assembly can be moved out of the switch room and the mechanism room by the supporting frame to be detected and maintained. The switch cabinet has advantages of a fixed cabinet, a mid-arranged type handcart cabinet and an inflation cabinet, integral units and buses are designed in a modularized way, and installation and maintenance are safe and simple.
Owner:HUNAN GUOAO POWER EQUIP

Ultraviolet response type rare earth light conversion film and application thereof

The invention discloses an ultraviolet response type rare earth light conversion film and an application thereof. The rare earth light conversion film is a light conversion film which is composed of rare earth complexes or composed of rare earth complexes and high-transmittance film-forming materials and has the light wavelength change function. The film can be used to convert light in the ultraviolet region to the imaging device sensitive wave bands. The ultraviolet response type rare earth light conversion film of the invention can be used to effectively enhance the sensitivity of a silicon-based imaging device on the ultraviolet light, and improve the conversion ration from the ultraviolet region to the visible light region, and the ultraviolet response type rare earth light conversion film can be used in the ultraviolet imaging process to clearly display fingerprint images which are printed on a base material and cannot seen with eyes, and replace existing expensive ultraviolet intensifying tubes and large heavy auxiliary equipment used by cooperating with the ultraviolet intensifying tubes, so the ultraviolet response type rare earth light conversion film is an idea nondestructive field criminal investigation tool.
Owner:GUANGDONG POLY OPTOELECTRONICS

Multifunctional anti-loosening bolt nut

The invention relates to the technical field of machine parts, in particular to a multifunctional anti-loosening bolt nut. The multifunctional anti-loosening bolt nut comprises a bolt jointed rod piece, a fastening nut and a locking nut, wherein a main body of the bolt jointed rod piece is provided with a fastening bolt jointed part; at least one end of the bolt jointed rod piece is provided witha locking bolt jointed part; the fastening bolt jointed part is provided with an external thread structure; the locking bolt jointed part is provided with an external thread structure or an inner bolthole structure; the screwing direction of the fastening bolt jointed part is opposite to the screwing direction of the locking bolt jointed part; a first inner hole and a second inner hole are formedin the locking nut; when the fastening bolt jointed part is of an external thread structure, the second inner hole is provided with an inner bolt hole structure; and when the locking bolt jointed part is of an inner bolt hole structure, the second inner hole is provided with an external thread structure. The self-loosening phenomenon of the bolt nut can be prevented from occurring and developing,thus preventing potential safety hazards even accidents from occurring. The multifunctional anti-loosening bolt nut has the functions of thread water prevention and dust prevention.
Owner:青海左丌右电气技术服务有限公司

Method and system for detecting crack propagation failure of thermal barrier coating

The invention discloses a method for detecting crack propagation failure of a thermal barrier coating, which comprises the following steps of: acquiring thermal barrier coating system data, and performing computer modeling on the thermal barrier coating on a part level according to the thermal barrier coating system data; obtaining the thermomechanical load of the part, and calculating to obtain the thickness of the current oxide layer; acquiring material parameters of the ceramic layer and a geometric configuration of an interface of the oxide layer and the top ceramic layer; obtaining the crack distribution probability density according to the obtained material parameters of the ceramic layer and the geometric configuration of the interface of the oxide layer and the top ceramic layer; and calculating according to the crack distribution probability density to obtain a typical main crack size, if the typical main crack size is smaller than a crack failure size threshold, determining that crack propagation does not fail, and otherwise, determining that failure occurs. Probability distribution of microstructure damage characteristics of the thermal barrier coating in the random useprocess is obtained through a statistical analysis method, various factors of TBC failure are covered, the current TBC damage condition can be accurately judged in real time, and the precision available for engineering is achieved.
Owner:苏州先机动力科技有限公司

Robot chassis capable of achieving omnidirectional movement and independent line patrol

The invention discloses a robot chassis capable of achieving omnidirectional movement and independent line patrol. The robot chassis comprises a chassis main plate, a damping structure, an automatic line patrol module, reinforcing bars and the like. The chassis main plate is made from an acrylic plate, and the reinforcing bars which are fixedly installed through bolts are arranged on the upper surface and the side surface of the chassis main plate to enhance the rigidity of a mechanism. Reinforcing bars comprise a plate surface reinforcing bar and a side surface reinforcing bar. The plate surface reinforcing bar is installed on the chassis main plate through bolts and nuts, and the side surface reinforcing bar is installed on the side surface of the chassis main plate downwards. The damping structure comprises a hanging plate, a hanging installing rod, a spring, an upper spring fixing part and a lower spring fixing part. The hanging installing rod is fixed on the side surface reinforcing bar through screws, then the hanging plate is fixed on the hanging installing rod through screws, the hanging plate and the chassis main plate correspondingly fix the spring fixing parts through screws, and the spring is fixed between the upper spring fixing part and the lower spring fixing part through bolts and screw holes. According to the robot chassis, the problems of the low motility and universality of an existing similar robot chassis are solved.
Owner:SOUTH CHINA UNIV OF TECH

Shared solar energy charging system

PendingCN107196368ANo need to worry about capacity not meeting demandEasy to installBatteries circuit arrangementsElectric powerThermodynamicsCommunication unit
The invention relates to the technical field of intelligent shared charging, and particularly relates to a shared solar energy charging system. The shared solar energy charging system comprises a solar energy panel, a pile body, a charging case and a shared mobile power supply; an electric core and a main control board are arranged in the charging case; the solar energy panel is electrically connected with the main control board via a lead wire and charges the electric core via the main control board; then, the electric core charges the shared mobile power supply; the shared mobile power supply is locked on the charging case via a lock catch device; a wireless communication unit is arranged on the main control board; and the system performs data interaction with a management APP via the wireless communication unit. According to the system, the shared use of the mobile power supply can be implemented, and the resources are saved; because the solar energy panel is taken as a power source, a commercial power supply does not need to be accessed, the system also can be used in an environment without a municipal power grid and the trouble of installing a power wire is omitted; the shared solar energy charging system can be installed at any place having the sunshine, so the installation is convenient and the service environment is wide; and the solar energy is a clean energy, so the energy is saved and the environment is protected.
Owner:SHENZHEN LETSOLAR TECH

Anti-slip anti-shaking constant pressure type cable meter counting device

InactiveCN104296669ASmall footprintWide meter counting rangeUsing optical meansEngineeringPhotoelectric sensor
An anti-slip anti-shaking constant pressure type cable meter counting device comprises a main engine, a power distribution cabinet is arranged on the main engine, a central point detection photoelectric sensor which is used for automatically tracking the height between a cable and the ground when the cable penetrates is assembled on the main engine, a base is arranged beside the main engine, a stand column is fixed to the base, a movable stand column is arranged on the stand column, and a lower end fixed support is fixed to the movable stand column. The central point detection photoelectric sensor drives a central height gearbox through an instruction; the central height gearbox enables a central height adjusting servo motor to rotate; the central height adjusting servo motor drives a rack; the rack enables the movable stand column to vertically move; meanwhile, a well-shaped frame support, a well-shaped frame vertical roller wheel, a well-shaped frame horizontal roller wheel, a well-shaped frame horizontal roller wheel shaft and a well-shaped frame vertical roller wheel shaft on the lower end fixed support passively roll along with the cable. The height of the meter counting device can be automatically adjusted through the central point detection photoelectric sensor, and the anti-shaking function is achieved.
Owner:兴乐电缆有限公司

Sealed type switch cabinet

The invention provides a sealed type switch cabinet. The sealed type switch cabinet comprises a bus chamber, an instrument chamber, a mechanism chamber, a cable chamber, a switch chamber and a pressure release channel. The instrument chamber, the mechanism chamber and the cable chamber constitute a front cabinet of the sealed type switch cabinet; the bus chamber, the switch chamber and the pressure release channel constitute a rear cabinet of the sealed type switch cabinet; the switch cabinet is successively provided with an upper wire inlet insulator set, a breaker assembly, a grounding switch and a lower wire outlet insulator set from the top to the bottom; each function chamber in the front cabinet and the rear cabinet are distributed in a stepped mode; the breaker assembly comprises a support, a breaker, an operation member and a sealing member; when the breaker assembly is disposed in the sealed type switch cabinet, the sealing member encloses the switch chamber; and the support can remove the breaker assembly out of the switch chamber and the mechanism chamber for detection and maintenance. The sealed type switch cabinet has the advantages of a fixation cabinet, a built-in handcart cabinet and an inflation cabinet, modularization design of an overall unit and a bus is realized, and the installation and maintenance are safe and simple.
Owner:袁茂银

Hybrid generator and generating method

The present invention provides a hybrid generator and a generating method. The generator comprises a public rotating shaft, a static electricity induction generating component and a friction generating component; under the action of a flowing fluid, when an impeller of the static electricity induction generating component rotates, two rotating discs of the friction generating component are driven to rotate relative to each other; mutual slide and friction between two friction layers of the two rotating discs cause the change of contact area, two electrode layers of the friction generating component are enabled to transmit electric signals, a fluid with static electricity on the surface is in contact with the impeller of the static electricity induction generating component and then is separated from it, and electric signals are generated between the electrode layers of the impeller and equal potential. The friction generating component converts the mechanical kinetic energy of water flow into electric energy; the static electricity induction generating component collects static electricity energy in the flowing fluid. The hybrid generator, provided by the present invention, can simultaneously collect the static electricity energy and mechanical energy in the flowing fluid, and provides a way of comprehensively utilizing multiple types of energy in the flowing fluid.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

Hanging seat with self locking structure

The invention discloses a hanging seat with a self locking structure. The hanging seat comprises an end cover, a shell body and a fixing assembly, wherein the end cover is provided with a connection column, the shell body is used for matching with the end cover to form a hanging seat main body, the shell is provided with a through hole, the connection column is connected with the fixing assembly through the through hole, the fixing assembly is connected with the end cover and is used for fixing the hanging seat main body on the wall or a cabinet surface or glass, a groove is arranged on the outer sidewall of the connection column, the edge of the through hole of the shell body is provided with a plurality of cards matching the groove, the connection column passes through the through hole, and the cards are clamped in the groove so that the end cover is locked on the shell body and is not removed. The hanging seat with the self locking structure, disclosed by the invention, can be arranged on a smooth wall and also can be arranged on a rough wall so as to have wide application environment; the end cover and the shell body are in self-locking connection, so that the installation and the fixation of the hanging seat are more convenient; and the hanging seat with the self locking structure, disclosed by the invention, has the advantages of simple structure and a fewer components, and is beneficial to producing and using.
Owner:GARBATH HOUSEWARE

Deep treatment system for bio-pharmaceutical organic wastewater

InactiveCN102241461AGood removal effectAmmonia nitrogen effect is goodMultistage water/sewage treatmentIridiumFiltration
The invention relates to a deep treatment system for organic wastewater of bio-pharmaceutical industry. The deep treatment system comprises an adjusting tank, a sedimentation tank, an electric flotation device, an advanced catalytic oxidation tower, an anaerobic membrane bed-aerated biofilter and a discharge pipe connected in turn, wherein the adjusting tank comprises a submerged stirrer; the electric flotation device comprises an electrode group; the electrode group is arranged at the bottom of the tank inner cavity and comprises a base, negative and positive electrode boards and a connection lead screw, the positive electrode board is an insoluble electrode board such as an iridium-coated titanium or ruthenium-coated titanium positive electrode board, and the negative electrode board adopts stainless steel graphite; the advanced catalytic oxidation tower is equipped with an ozone generator and is subjected to ultraviolet radiation; and the anaerobic membrane bed-aerated biofilter is equipped with an anaerobic tank, an aerobic tank and an aeration system. By using the deep treatment system for organic wastewater provided by the invention, the electrochemical treatment, filtration and biological degradation are integrated, organic matters and ammonia nitrogen in wastewater are more effectively removed, the performance-to-price ratio is high, the operation is simple, no toxic or harm action to the subsequent treatment is generated and secondary pollution can be effectively avoided.
Owner:TONGJI UNIV
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