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527results about How to "Sealed" patented technology

Closure valve apparatus for fluid dispensing

A closure valve used in a fluid dispensing assembly. The closure valve contains a housing, poppet, sleeve, and a biasing member. The closure valve provides simplified sealing structures for preventing product leakage and spill. The sealing structures being integrally molded sealing structures.
Owner:COLDER PRODS

Method for recovery of waste heat of steel slag and comprehensively processing and utilizing steel slag

The invention provides a mehtod for recovering waste heat of steel slag and comprehensively processing and using the steel slag, and belongs to the technical field of steel slag treatment. The method comprises the following steps: a thermal state steel slag material discharging system discharges steel slag into a thermal state steel slag material receiving system for primary crushing; the crushed steel slag is subjected to secondary crushing by a thermal state steel slag velocity control system and quantificationally fed into a thermal state steel slag cooling granulating system for re-crushing and cooling, high-temperaure hot air generatd in the cooling process is collected by a thermal state steel slag waste heat recovery system and enters a heat exchange system to form vapor for power generation or heat supply; the cooled steel slag enters a steel slag stabilizing treatment system, and the steel slag after the stabilizing treatment is treated by a steel slag separation system to obtain steel slag tailing micropowder and metal slag steel respectively; and, the steel slag micropowder is mixed with other materials and used to prepare concrete products by a steel slag concrete product processing preparation system. The method has the advantages of adaptability to various types of steel slag to be processed, good operational environment and no secondary pollution.
Owner:SHOUGANG CORPORATION

Garbage classification and collection system for high-rise building

A garbage classification and collection system for a high-rise building comprises a vertical slideway, a control device, various kinds of garbage cans and at least one lifter. The vertical slideway serves as a garbage conveying passage for the high-rise building. The control device comprises a control panel of each floor and is used for controlling operation of the garbage classification and collection system. The various kinds of garbage cans are used for containing various kinds of garbage. Each lifter is disposed in the vertical slideway. The various kinds garbage cans are disposed on the lifters. The control device controls the lifters according to received instructions to drive the garbage cans to move up and down in the vertical slideway and rest at appointed floors. Compared with the existing garbage classification and collection system for high-rise buildings, the garbage classification and collection system adopts innovative thoughts, garbage can be classified and collected, and influence of garbage odor on residents of the high-rise building is reduced due to the fact that the garbage cans are disposed in the slideway. The garbage classification and collection system is simple in structure and easy in maintenance and late modification, and total automation can be achieved.
Owner:SHENZHEN SMART SECURITY & SURVEILLANCE SERVICE ROBOT CO LTD

Photovoltaic solar energy pavement structure unit, power generation system and manufacturing method of pavement structure unit

ActiveCN103929119ASave land costReduce the cost of photovoltaic power generationPhotovoltaic supportsSolar heating energyAutomotive engineeringStructural unit
The invention relates to a photovoltaic solar energy pavement structure unit, a power generation system and a manufacturing method of the pavement structure unit. The pavement structure unit comprises a concrete base, a photovoltaic solar cell panel and a PMMA light-transmitting protective plate, a sinking part is arranged in the center of the concrete base, the PMMA light-transmitting protective plate is arranged on the concrete base in a covering mode to define a closed space, and the photovoltaic solar cell panel is packaged in the closed space. The power generation system comprises a solar energy storage battery controller, a storage battery and multiple photovoltaic solar energy pavement structure units, the photovoltaic solar energy pavement structure units are laid to form a pavement and connected in parallel or series to the solar energy storage battery controller, the solar energy storage battery controller is connected with the storage battery, and the output end of the storage battery or the output end of the solar energy storage battery controller is connected with an electric load. The manufacturing method includes the steps that S1, the concrete base is prefabricated; S2, the photovoltaic solar cell panel is installed; S3, the PMMA light-transmitting protective plate is arranged on the concrete base in a packaging mode and receives penetrating light irradiation.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Frame sealing glue composition, display device and detection method

The invention discloses a frame sealing glue composition. The frame sealing glue composition comprises a frame sealing glue, a fluorescent material and a dispersant, wherein the frame sealing glue comprises a prepolymer, an active monomer, a thermal curing agent and a photoinitiator. Through addition of the fluorescent material with a fluorescent effect into the conventional frame sealing glue, the obtained frame sealing glue composition exerts a same adhesive effect as that of the conventional frame sealing glue and facilitates detection of bonding effects on frame sealing glue layers through the fluorescent effect. The invention further discloses a display device and a detection method based on the frame sealing glue composition. The frame sealing glue layers are irradiated by invisible light with wavelength of less than 400 nm, and sealing conditions of the frame sealing glue layers are determined according to the fluorescent effect of the frame sealing glue layers. Thus, bonding effects on the frame sealing glue layers can be conveniently and effectively detected without detection in a special environment, breaking of panels in the process of carrying is avoided, and detection results can be effectively and rapidly obtained.
Owner:BOE TECH GRP CO LTD

A rotary fruit and vegetable cleaning machine

The invention discloses a rotary fruit and vegetable cleaning machine, which comprises a machine body and a cover. The machine body includes an outer shell and an inner shell arranged inside the outer shell. The water inlet into the inner shell, the driving device for driving the vegetable basket to rotate, the ozone generating device, and the ozone pipeline for passing ozone into the inner shell. The cover is sealed with the surrounding of the inner shell. When ozone is used to clean fruits and vegetables in water, the lower surface of the cover is provided with a deflector for guiding the water flow to disperse and spray. When the rotation speed of the vegetable basket reaches a certain speed, the water will rise along the inner wall of the inner shell due to the centrifugal force of the rotation of the vegetable basket and the effect of the water-repelling leaves. The deflector in the form of a parabola guides and sprays the water to the vegetables close to the peripheral wall of the vegetable basket, and cleans the vegetables under the impact of relative motion. The invention has the advantages of simple structure, good effect of ozone dissolution and disinfection, and high efficiency.
Owner:QINGDAO HAIER WASHING MASCH CO LTD

Photoelectric conversion device, and process for manufacturing photoelectric conversion device

A photoelectric conversion device includes a first substrate, a first electrode, an organic layer, a second electrode and a second substrate that are provided in this order. An auxiliary electrode is interposed between the first electrode and the organic layer. When the photoelectric conversion device is seen in a cross section taken in a thickness direction of the first substrate, a thickness of the auxiliary electrode is greater than a thickness of the organic layer.
Owner:IDEMITSU KOSAN CO LTD

Combination Structure Between Single Cell and Interconnect of Solid Oxide Fuel Cell

The present invention relates to a combination structure of a solid oxide fuel cell between an electrode and an interconnect in which the electrode and interconnect are sinter-joined to each other by using slurry in a status that a conventional current collector is excluded, thereby improving a strength and a sealing efficiency. The combination structure between a single cell and an interconnect of a solid oxide fuel cell which comprises electrolyte, and an anode and a cathode which are respectively contacted with both sides of the electrolyte; and an interconnect which are formed at both sides of the single cell and has a cathode passage for supplying air to the cathode and an anode passage for supplying fuel to the anode, is characterized by that one or both sides of the single cell are directly combined with the interconnect.
Owner:KOREA ADVANCED INST OF SCI & TECH

Breeding method of bactrocera cucurbitae

The invention discloses a breeding method of bactrocera cucurbitae, which comprises the steps of egg collection, pupa collection, pupa eclosion and imago breeding. According to the method, a natural-growth environmental condition and a living habit of the Bactrocera cucurbitae are researched and analyzed, so that a successful method for artificially breeding the Bactrocera cucurbitae is obtained by creative exploration, and the Bactrocera cucurbitae with basically-consistent growth and development conditions can be obtained in batches; on the basis of the method, the bactrocera cucurbitae meeting a using requirement of scientific experiment research can be provided for scientific experiments all the year around without limitation of natural conditions and seasons; and the breeding method can increase a survival rate of artificial breeding of the Bactrocera cucurbitae, and improve the breeding efficiency.
Owner:DONGGUAN SHENGTANG CHEM +1

Removable top cover for railway open hopper wagon

The invention belongs to lorry part technique field, in particular to a movable roof for railway coverless hopper lorry, which solves a problem in the prior art that railway coverless hopper lorry can not meet the transportation requirement of powder goods. The movable roof is characterized in that an arc roof is arranged on the coverless hopper lorry; a feeding inlet is arranged on the arc roof; an arc movable top cover which can do rotational slide along the arc roof is arranged on the feeding inlet; a rocker is arrange on both ends of the movable top cover; the lower part of the rocker is hinged with the body of coverless hopper lorry; the rocker is connected with a driving mechanism; a limit device and a locking mechanism are arranged on the rocker. The invention has the advantage of rain and water proofing, flexible pneumatic opening and closing of the fully long movable top cover, and fills a domestic gap in the field and lays a foundation for further development of the hopper lorry with cover.
Owner:CHINA RAILWAYS CORPORATION +1

Electromagnetic actuator for active vibration damping device

An electromagnetic actuator having: a stator and a movable member disposed in a central hole of a coil member of the stator movable in an axial direction; a coupling rod fixed to the movable member; and an elastic stopper having a ring shaped sealing unit at its outer periphery part, a first stopper unit at its center part, a coupling unit that mutually couples the sealing unit and the first stopper unit, and second stopper units located radially between the sealing unit and the first stopper unit at respective circumferential positions. The sealing unit is compressed between the bottom wall of a housing and a lid member to form a sealing mechanism that fluid-tightly close an opening of an adjustment hole. The first stopper unit axially faces the coupling rod bottom with a first separation distance, and the second stopper units axially face the movable member bottom with a second separation distance greater than the first.
Owner:SUMITOMO RIKO CO LTD

Food grade lubricating grease and its preparation method and application

ActiveCN102268320AComply with water quality sanitation and safety requirementsSealedLubricant compositionFood gradeBase oil
The invention relates to food-grade lubricating grease as well as a preparation method and application thereof. The food-grade lubricating grease comprises the following components by weight percent: 70-80% of base oil, 6-15% of thickening agent and 10-20% of antiwear agent. The preparation method comprises the following steps: adding fatty acid, aromatic acid and organic aluminum into the base oil in a proportion, mixing and heating to 60-100 DEG C, and carrying out a recombination reaction for 1-2 hours; further heating the combined material to 100-140 DEG C, adding tap water with a certain proportion and then maintaining the constant temperature for 1-2 hours, wherein water equivalent is 1-3 times that of organic aluminum; further heating the combined material to 150-180 DEG C and the nmaintaining the constant temperature for 0.5-1 hour; then adding quenching oil and evenly mixing, wherein the amount of quenching oil is about 30%-40% of that of base oil; and further cooling the material to the temperature below 140 DGE C, and adding the antiwear agent and then evenly mixing, so as to obtain the required product. In the invention, a one-step method is adopted for direct recombination reaction, thus process is simple, energy consumption is reduced, production cost is reduced, and the quality of the product produced by the process is relatively stable.
Owner:CHINA PETROLEUM & CHEM CORP

Underwater electric steering engine and rudder angle detection method

The invention relates to a steering gear, in particular to an underwater electric steering engine and a rudder angle detection method. The underwater electric steering engine comprises an output shaft, an engine base, a worm wheel, a worm, a power system and a steering engine controller. The power system drives the output shaft to rotate through transmission of the worm and the worm wheel. The output shaft extends out of the end, provided with a shaft end cap, of the engine base, and the output shaft is provided with a limiting swing piece at the end. A swing groove is formed in the shaft end cap. The limiting swing piece swings in the swing groove. The steering engine controller is connected with a motor in the power system. An incremental encoder is arranged on the motor. The limiting swing piece and the steering engine controller are used for determining the rudder angle zero point position. The incremental encoder is used for detecting angle change values of a motor output shaft so as to determine the absolute position of the current rudder angle. The power system is arranged in a shell. The shell communicates with the engine base, and the interior of the shell is an oil-filled sealed space. An oil pipe is connected with the shell. The underwater electric steering engine is compact in overall structure and capable of meeting operation demands of full-ocean-depth low-speed large-torque and large-moment output.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Glass sintering sealed through-wall electric coupler

A glass sintering sealed through-wall electric coupler comprises a conductor insertion needle (11), first ceramic insulators (13), a glass insulator (12), second ceramic insulators (14) and a shell (15). Bosses (131) protruding outwards are arranged on the back end surfaces (132) of the first ceramic insulators (13), cavities (141) sunken inwards are formed in the front end surfaces (142) of the second ceramic insulators (14), and the bosses (131) extend into the cavities (141) in the axial direction. The first ceramic insulators (13) or the second ceramic insulators (14) are installed on the shortest path from any point on the conductor insertion needle (11) to the shell (15). According to the electric coupler, the creep distance of any point on the conductor insertion needle (11) to the glass interface of the shell (15) is increased, and therefore the insulation resistance and the voltage-resistance performance of the coupler are improved.
Owner:SUZHOU HUAZHAN SPACE APPLIANCE

Road and bridge expansion joint structure

The invention discloses a road and bridge expansion joint structure. The road and bridge expansion joint structure comprises an inverted-T-shaped plate component with the bridge longitudinal cross section being in an inverted T shape. Two wing plates of the inverted-T-shaped plate component transversely extend into a base body of a bridge pavement layer. A web extends upwards to be flush with the upper surface of the bridge pavement layer. Each wing plate is sequentially provided with a cushion layer and a protection wear-resisting layer from bottom to top in a laying mode and is longitudinally connected with the bridge pavement layer. An expansion joint notch and the two sides of the expansion joint notch are filled with elastic layers to be sealed. The road and bridge expansion joint structure has the advantages of being convenient to construct, reasonable in design, high in efficiency, good in vehicle load bearing performance, good in elasticity, smooth and attractive in surface, and good in waterproofing, anti-aging, anti-fatigue, shock resistance and corrosion resistance. In accordance with the characteristics of an expansion joint, three materials of different components and matching ratios are adopted, layered pavement is conducted according to different stress conditions and states, good durability is achieved, construction is rapid and simple, and the expansion joint performance requirement can be well met.
Owner:孟献春

Equipment for nonvacuum melting and casting readily oxidizable metal and alloy

The invention relates to a device used in non-vacuum smelt casting oxidizable metal and alloy. Wherein, the furnace has heater and pot; the furnace cover has gas inlet and material inlet; and it has cooler; the bottom of furnace has lower irrigator; the bottom of pot has bottom bowl; the irrigator of bottom bowl contacts the plug rod vertically; the bottom plug rod is connected to the dummy ingot head; the dummy ingot head adjusts the position of plug rod; the bottom bowl is connected to crystallizer connected to the cooler; the crystallizer has graphite sheath and cooling water groove, to reduce the casting ingot temperature; the dummy ingot head has dovetail groove to solidify the fusion as drawing function; the dummy ingot head is connected to adjuster. The invention processes the whole process under protective gas, with low hurt rate and improved quality.
Owner:苏州有色金属研究院有限公司

Gas channeling control cement slurry system applicable to shale gas well cementation and preparation method thereof

The invention discloses a gas channeling control cement slurry system applicable to shale gas well cementation, which consists of G-grade oil well cement, fresh water, weighting agent or lightening agent, quartz sand, G403 oil well cement toughening agent, redispersible emulsion powder, stabilizer, G33S oil well cement filtrate reducer, GH-9 oil well cement retarder, G401 oil well cement expansionagent, USZ oil well cement drag reducer and XP-1 defoaming agent. Regulated by the added admixture weighting agent and lightening agent, elastic gas channeling control cement slurry systems with different specific gravities are prepared by the invention, the well cementation requirements of different blocks and different formations can be met, and oil and gas reservoirs can be cemented well. Thefiltrate reducer, the retarder, the expansion agent and the drag reducer adopted by the invention have extremely high adaptability, and are highly compatible in different cement slurry systems, so that the comprehensive properties of the cement slurry systems are excellent.
Owner:卫辉市化工有限公司

Bearing quick-release lock

The invention discloses a bearing quick-release lock and belongs to the fields of quick release connection of a fairing and an access panel which are frequently released in an aviation helicopter structure. The bearing quick-release lock is characterized by comprising a lock seat assembly and a lock pin assembly, wherein the lock seat assembly comprises a sealing cap, a snap spring, a compression spring, a sliding block and a lock seat; the lock pin assembly consists of a washer, a lock pin, a bush and an ejection rod. The bearing quick-release lock disclosed by the invention has the advantages of light structural weight, attractive appearance, high reliability, sealing property and certain bearing capacity, and can be suitable for quick release connection of a fairing at a position where the vibration environment is particularly severe. According to the quick-release lock disclosed by the invention, after locking, the lock pin is clamped by a clamping groove of the sliding block, so that the lock pin cannot extend by rotating; the lock pin can be unlocked by rotating after the ejector rod is pushed by a tool and is enabled to push the sliding block to move until the lock pin cannot be clamped by the sliding block; after locking, the ejector rod ejects to be in flush with the head of the lock pin, so whether the virtual locking exists or not can be effectively judged.
Owner:CHINA HELICOPTER RES & DEV INST

Detachable internally-arranged infrared temperature measuring device for GIS

The invention provides a detachable internally-arranged infrared temperature measuring device for the GIS. The detachable internally-arranged infrared temperature measuring device for the GIS comprises an infrared perspective window, an infrared temperature measurement sensor body, a fully-sealed shell, a first installation flange, a second installation flange, a circuit protective shell and a signal amplifying and processing circuit. The infrared perspective window is connected with the infrared temperature measurement sensor body. The infrared temperature measurement sensor body is located inside the fully-sealed shell. One end of the fully-sealed shell is fixed to the GIS through the first installation flange and the other end of the fully-sealed shell and the circuit protective shell are connected through the second installation flange. The signal amplifying and processing circuit is located inside the circuit protective shell. The detachable internally-arranged infrared temperature measuring device for the GIS is flexible and detachable, the infrared temperature measurement sensor body and the fully-sealed shell are safe and independent, the sealing performance and the voltage resistant performance are good, and the infrared temperature measurement sensor body and the fully-sealed shell are installed outside a GIS air chamber, so that verification, maintenance and replacement which are conducted by an infrared temperature sensing system are facilitated under the condition that the GIS is operated; the device can be detached under the condition that normal operation of the GIS is not influenced, an internal electric field structure of the GIS is not influenced, and the requirement for the sealing performance of the GIS is satisfied.
Owner:STATE GRID CORP OF CHINA +4

Coal-based ethylene glycol sewage treatment method and system

The invention provides a coal-based ethylene glycol sewage treatment method and system. The treatment method includes the following steps that steam stripping purification treatment, anaerobic biological treatment, aerobic biological treatment, Fenton oxidation treatment, aeration biofilter treatment, ultrafiltration and reverse osmosis treatment are sequentially carried out on coal-based ethylene glycol sewage, and the treated coal-based ethylene glycol sewage can be reused after being drained. The coal-based ethylene glycol sewage treatment system comprises a steam stripping purification treater, an anaerobic biological reactor, an aerobic biological reactor, a Fenton oxidation reactor, an aeration biofilter, an ultrafilter and a reverse osmosis device which are connected in sequence. The optimal purification effect is obtained through the shortest and most simple technological process, and the treated sewage meets the reuse index requirement and can be reused by a production water supply system; as the process is simple, the coal-based ethylene glycol sewage treatment method is suitable for large-scale industrialization.
Owner:SINOPEC ENG GRP CO LTD

Novel fuel tank for automobile

The invention provides a novel fuel tank for an automobile. The fuel tank comprises a tank body, a fuel filler, a fuel return pipe, a fuel supply pipe, a fuel pump, a gasoline steam output pipe and a fuel level sensor, wherein the tank body comprises an inner layer and an outer layer, the fuel pump is mounted at the lower part in the tank body and connected with the fuel supply pipe, the fuel level sensor is mounted at the top in the tank body, the fuel return pipe is mounted on the left side of the fuel supply pipe, the gasoline steam output pipe is mounted on the left side of the fuel return pipe, a check valve is mounted in the gasoline steam output pipe, the fuel filler is mounted on the right side of the fuel supply pipe, a fuel tank cover is mounted at the top of the fuel filler, and the fuel filler is mounted at the top of the tank body. The fuel tank has the benefits as follows: a vacuum interlayer is arranged between the outer layer and the inner layer, has insulation and heat isolation functions, can prevent fuel from freezing and can play roles in preventing burning of the fuel tank and explosives due to fuel temperature rise; the fuel tank is simple in structure, convenient to use, higher in safety, convenient to mount and capable of reducing environmental pollution.
Owner:CHONGQING ZHONGKE SCI & TECH

Groove clamping hoop type pipeline joint

The invention discloses a groove clamping hoop type pipeline joint in the technical field of pipe joints. When used for connecting pipe fittings, the groove clamping hoop type pipeline joint has the advantages of quickness, simplicity and convenience, reliability, safety, economy, vibration isolation, no pollution and convenient maintenance. The groove clamping hoop type pipeline joint comprises two semicircle arciform clamping hoops, and two ends of each semicircle arciform clamping hoop are provided with a fastening bolt connecting lug protruding outwards respectively; the lower edges along the two lateral faces of the semicircle arciform clamping hoops are provided with flanges extending downwards respectively; a groove is arranged between the two flanges, and the two semicircle arciform clamping hoops are jogged with each other to form a seal washer mounting groove; a seal washer can be mounted in the seal washer mounting groove in a matching mode; and two fastening pieces are used for fastening tightly the lugs of the two semicircle arciform clamping hoops.
Owner:JIANGSU JIANGDU CONSTR GRP

Production system for comprehensively utilizing salt lake resources to achieve magnesium metal integration and method thereof

The invention discloses a production system for comprehensively utilizing salt lake resources to achieve magnesium metal integration. The production system comprises a magnesium metal production device, a device for producing PVC through ethylene produced by direct chlorination methanol decomposition, a device for producing PVC with the calcium carbide method, a soda ash production device and a calcium chloride production device, wherein all the devices are connected in sequence, and the product of the last one device is the raw material of the next device. The chlorine in the production system is the byproduct and can be directly used in the PVC production, the production trend of the magnesium metal item chlorine is achieved, the source of the PVC item chlorine is also achieved, and dual purposes are achieved; the raw limestone is firstly used in calcium carbide production and then used in sodium carbonate production through carbide slag, the calcium chloride is produced or the brine is adjusted through the alkali liquor, multi-level combination using is achieved, and the resource utilization ratio is greatly improved.
Owner:QINGHAI SALT LAKE IND

Pocket type dust removal device

The invention discloses a pocket type dust removal device, and relates to the technical field of pocket type dust removal equipment. According to the pocket type dust removal device, the problem that the conventional filter bag is inconvenient to replace is solved. The dust removal device comprises a shell, a flower plate and a bag cage, wherein the flower plate is arranged in the shell; a filter bag sleeves the bag cage; an elliptic annular guide rail, the two ends of the which extend out of the shell, is arranged below the flower plate; the rolling wheel is arranged on each of the two sides of the upper end of the bag cage; the bag cage is positioned on the guide rail by the rolling wheels; an annular chain and a motor which is provided with a chain wheel are arranged on the inner side of the guide rail; the bag cage is connected with the chain. When the filter bag needs to be replaced, the motor operates to drive the chain to enable the bag cage to move out of the shell by the guide rail. Therefore, the filter bag can be replaced outside the shell; a worker does not need to enter the dust removal device, so that the harm to a body of a maintainer due to dust is avoided, and the filter bag is more convenient to replace. Therefore, the pocket type dust removal device has wide application prospect in the technical field of pocket type dust removal devices.
Owner:成都捷科菲友信息技术有限公司

Hollow glass and manufacture method thereof

The invention embodiment discloses a hollow glass and a manufacture method thereof; the hollow glass comprises a first glass layer, a second glass layer and a glass support frame; the first and second glass layers are bonded by the glass support frame through an intermediate coat; an inflation space is formed between the first and second glass layers, and filled with inert gas. The hollow glass can greatly reduce gas leak and moisture intrusion probability, thus greatly improving composition intensity and sealing performance of the hollow glass without adding manufacture cost.
Owner:南京亚鼎光学有限公司

Water-proof sealing cover

The invention discloses a water-proof sealing cover for a stay cable or a lifting rod. The water-proof sealing cover comprises a fixing sleeve, sealing rubber, a compression ring and a corrugated sealing sleeve, wherein the fixing sleeve, the compression ring and the sealing rubber are integral structures or two-half structures; the corrugated sealing sleeve is the integral structure or the two-half structure; during use, the corrugated sealing sleeve with the two-half structure is connected into a whole through a bolt; and the sealing rubber is arranged between the fixing sleeve and the compression ring. Through pre-tensioning force between the fixing sleeve and the compression ring, the sealing rubber is tightly clamped in a cable body, so that the fixing sleeve, the compression ring and the sealing rubber are fixed with the cable body and then are connected with a pre-embedded pipe through the corrugated sealing sleeve. The corrugated sealing sleeve has a plurality of degrees of freedom, the influence of constraint on the cable body is relatively low, and a relatively good sealing effect can be achieved. Furthermore, due to the special structure of the corrugated sealing sleeve, the problem that the water-proof cover cannot be mounted or a using effect cannot be achieved after the water-proof cover is mounted because the cable body is not in the middle of the pre-embedded pipe during practical mounting is solved.
Owner:LIUZHOU OVM MASCH CO LTD

Underwater wet-mate connector

The invention discloses an underwater wet-mate connector. A casing is provided with a plugging passage which extends forwards and backwards, the casing is provided with an inserting opening which is positioned at the front end of the plugging passage and is used for enabling a contact part of an adaptive connector to be inserted into the plugging passage, a water through cavity is arranged in the plugging passage and is communicated with a water body outside the casing, an inserting hole sealing rod is arranged in the plugging passage along the front and back direction in a guiding and moving way, the front end of the inserting hole sealing rod is provided with a matching end surface which is in pushing matching with the contact part of the adapting connector, the interior of the plugging passage is provided with a sealing structure behind the inserting opening, an oil filling cavity is arranged between the sealing structure and the water through cavity in the plugging passage, a piston block which is used for separating the oil filling cavity from the water through cavity is arranged in the plugging passage in a sliding and sealing way, the back part of the inserting hole sealing rod and the contact part are respectively arranged in the oil filling cavity, the back end of the inserting hole sealing rod is in driving connection with the piston block through an elastic part, and a floating block is connected with a reset spring. The underwater wet-mate connector effectively solves the problem of unreliable sealing of the existing underwater wet-mate connector.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

Damage patching and repairing method based on memory alloy and for expandable tubular

The invention relates to a damage patching and repairing method based on memory alloy and for an expandable tubular. The problems of complicated mechanisms, poor corrosion resistance, low constructionefficiency and downhole accidents prone to occurring in an existing construction method are solved. The damage patching and repairing method comprises the steps that (1) a memory alloy expandable tubular damage patching tool is selected or prepared; (2) a casing milling or shaping tool is lowered in advance to perform reshaping and cleaning on unsuitable positions; (3) the memory alloy expandabletubular damage patching tool is placed in a low temperature environment, the uniform stress is applied at both ends of the memory alloy expandable tubular damage patching tool to lengthen the memoryalloy expandable tubular damage patching tool; (4) the memory alloy expandable tubular damage patching tool and a heating rod disposed in the memory alloy expandable tubular damage patching tool are lowered and sent into the damaged expandable tubular together; (5) after installation in place is completed, the heating rod is energized by a cable; and (6) after the memory alloy expandable tubular damage patching tool is completely deformed, the heating rod is powered off and taken out, and patching and repairing of the damaged expandable tubular is completed.
Owner:CNPC TUBULAR GOODS RES INST +2
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