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32results about How to "Easy to leak" patented technology

Float valve sealability detection device

The invention discloses a device for detecting tightness of a float valve, which comprises an upper water tank, a lower water tank, a water level display pipe and a water pump for pumping water inside lower water tank to the upper water tank, wherein an ascending pipe, a descending pipe and an overflow pipe are arranged between the upper water tank and the lower water tank; the bottom of the descending pipe is provided with a lower valve for controlling water current in the descending pipe; the bottom of the water level display pipe is communicated to the inlet end close to the lower valve; the top of the water level display pipe is communicated with a high level gas-phase pipe; and the high level gas-phase pipe is communicated with a detecting head. When the float valve is detected, the detecting head is hermetically connected with a water inlet of the float valve, the water level in the upper water tank is constant after the water pump is opened, the pressure generated by the water inside the upper water tank is detecting pressure, and the stable water level inside the water level display pipe reflects sealing performance of the float valve that the lower the stable water level is, the better sealing performance of the float valve is. The device has the advantages of high accuracy and stability of the detecting pressure, no pollution of detecting medium to the float valve, high correctness of the detecting result and describable detecting result with data, and easy operation and quickness during detection.
Owner:黄樟焱

Skid-mounted carbon dioxide gas absorption method and apparatus applicable to offshore platform

The invention provides a skid-mounted carbon dioxide gas absorption method and apparatus applicable to an offshore platform. The method comprises the following steps: conveying high-pressure gas (feed gas) with high carbon dioxide content and a barren decarburization solution (a barren solution) into a hypergravity absorption machine and allowing the barren solution to absorb CO2 in the feed gas to form a rich decarburization solution ( a rich solution) so as to realize purification of the feed gas; and allowing the rich solution to enter a desorption tower after flash evaporation and pressure reduction so as to realize release of CO2 and regeneration into a barren solution, allowing CO2 to enter a post-treatment system after treatment by a gas-liquid separator and re-inputting the regenerated barren solution into the hypergravity absorption machine for cyclic utilization. The hypergravity absorption machine and the like are integrally arranged to form a detachable skid-mounted integrated system. The apparatus provided by the invention employs a skid-mounting design, and is small in size, light in weight and applicable to space-limited occasions like an offshore platform; and through a combination of the method and the apparatus provided by the invention, CO2 in feed gas like natural gas and oilfield associated gas can be highly and environment-friendlily removed at low cost, low consumption and low discharge, and rational utilization of resources is realized.
Owner:北京化工大学苏州(相城)研究院 +2

Junction-free field effect transistor and formation method thereof

The invention provides a junction-free field effect transistor and a formation method thereof. The formation method comprises the steps of providing a substrate with a first region and a second region; forming a first doped region and a second doped region; removing part of the substrate so as to form a first opening and a second opening; and filling with openings with a metal containing material layer so as to form a source region and a drain region in the first opening and the second opening respectively. The invention further provides a junction-free field effect transistor, which comprises a substrate, a first doped region, a second doped region, a first gate structure, a second gate structure, a first opening and a second opening, and is characterized in that the first opening and the second opening are internally provided with metal containing material layers which act as a source region and a drain region respectively. The beneficial effects of the invention lie in that contact resistance between the source / drain region and a conductive plug is small, turn-on current is increased, and the performance of the junction-free field effect transistor is improved; and the difficulty of a doping process is simplified, and the degree of an interface scattering problem possibly occurred in the doped regions is reduced to a certain extent.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Rotary furnace capable of simultaneously adopting hydrogen forward and reverse supply

The invention discloses a rotary furnace capable of simultaneously adopting hydrogen forward and reverse supply, and relates to a reduction furnace. Through structural improvement of an inner pipe of the furnace, product quality can be controlled, and a large amount of hydrogen and energy can be saved; the furnace comprises a furnace body and a furnace pipe; the furnace pipe penetrates the furnace body to be mounted on a rack, and the furnace is characterized in that the furnace pipe is arranged to be high in front and low in rear, the furnace pipe comprises the forward hydrogen reduction portion and a reverse hydrogen reduction portion, the forward hydrogen reduction portion comprises a front inner furnace pipe and a pre-mixing chamber, the front inner furnace pipe is mounted in the furnace pipe axially, a forward hydrogen reduction area is formed between the front inner furnace pipe and the furnace pipe, a hydrogen inlet is formed in the head of the furnace pipe, an exhaust pipe is arranged on the head of the front inner furnace pipe and penetrates the pre-mixing chamber to purify returned hydrogen, the reverse hydrogen reduction portion comprises a discharging pipe and a rear inner furnace pipe, the rear inner furnace pipe is axially mounted in the furnace pipe, the front end of the rear inner furnace pipe is closed, a certain distance is arranged between the front end of the rear inner furnace pipe and the rear end of the front inner furnace pipe, the rear end of the rear inner furnace pipe is close to the discharging pipe, and the tail end of the discharging furnace pipe is provided with a cold hydrogen inlet.
Owner:赣州鼎盛炉业有限公司

Automatic material feeding, taking and pressing production line for malleable material

InactiveCN108891070ARealize the automation of feeding and retrievingEasy to leakPress ramHydraulic cylinderProduction line
The invention provides an automatic material feeding, taking and pressing production line for a malleable material. The automatic material feeding, taking and pressing production line comprises a material feeding device, a material pressing device and a material taking device. Firstly, a hopper stops at a discharging port of a material distributing machine for material preparation, closing of a hopper cover is kept through a hopper switch locking device, a hydraulic cylinder is controlled through hydraulic driving, a material feeding manipulator telescoping mechanism is pushed to complete material feeding, an upper pressing oil cylinder is controlled through hydraulic driving, a material pressing machine piston is pushed to an upper pressing plate to press down and compress the material into blocks; secondly, liquid enters a lower cavity of the upper pressing oil cylinder, a piston and a movable cross beam are pushed to achieve return stroke motion, meanwhile a material taking telescoping mechanism and a lifting mechanism are hydraulically driven to complete formed material positioning of a material taking manipulator. Clamping mechanisms of fingers utilize a push rod and slide block mechanism to decide clamping and loosening of the manipulator according to different positions of the hydraulic cylinder, and the fingers moves on a polished bar to achieve clamping of the materialblocks; finally, a piston rod is hydraulically driven to perform return stroke motion, and the formed material is placed on a conveying belt for material conveying.
Owner:HARBIN ENG UNIV

Integrated sewage treatment equipment

The invention discloses integrated sewage treatment equipment. The equipment comprises a plurality of tank bodies, wherein the tank bodies comprise a biological septic tank, an acidification and hydrolysis tank, an A-section biological reaction tank, an O-section biological reaction tank and a sedimentation tank in the water flow direction; wherein the biological septic tank is a sedimentation andfiltration tank containing biological sludge, the acidification and hydrolysis tank is a flocculation and sedimentation tank, the A-section biological reaction tank is an anaerobic biological reaction tank, and the O-section biological reaction tank is an aerobic biological reaction tank; the biological septic tank is connected with the acidification and hydrolysis tank through a grid filter screen; the acidification and hydrolysis tank is connected with the A-section biological reaction tank through a sewage pump and a pipeline; partition plates are arranged among the A-section biological reaction tank, the O-section biological reaction tank and the sedimentation tank, and the sedimentation tank is connected with the O-section biological reaction tank through a clean water pump and a pipeline. The equipment effectively solves the problems that existing rural sewage treatment equipment is time-consuming and labor-consuming in construction, prone to leakage, low in compressive strengthand poor in sewage treatment effect.
Owner:贵州圣觉环保设备有限公司

Novel ultralow temperature stop valve and operation method thereof

The invention discloses a novel ultralow temperature stop valve and an operation method thereof, mainly solving the problems in the prior art that the leakage of a filling material is easily caused bythe long-term immersion of the filling material in ultralow temperature liquid; an ultralow temperature resisting temperature is relatively expensive; a low-temperature stop valve has a relatively poor airtight stability on a dynamic device; and the high moment closing easily causes the damage of a sealing surface. The novel ultralow temperature stop valve comprises a valve body, a valve rod anda hand wheel, wherein a valve cover assembly is arranged on the valve body; the valve rod is screwed into the valve cover assembly through a thread and is matched with the valve cover assembly; a valve cover conical surface is arranged at the lower end of a part, being in threaded connection with the valve rod ,of the valve cover assembly; and the hand wheel is fixedly connected to the valve rod through a hand wheel nut and an elastic washer. According to the technical scheme, when the valve is opened, the valve cover is reversely sealed to prevent the filling material from being leaked; the cost is greatly reduced; the micro-leakage and automatic opening are avoided on the dynamic device; meanwhile, the closing moment is reduced by 50%; and the service life of a sealing gasket is prolonged. The novel ultralow temperature stop valve is suitable for LNG, LO2, LN2, LAr and ultralow temperature pipelines and operation equipment.
Owner:张家港富瑞阀门有限公司

High-concentration acid-base reaction device

The invention discloses a high-concentration acid-base reaction device which comprises a reaction tank body, wherein the outer wall of the reaction tank body is of a two-layer structure; a cavity formed by the inner layer is a neutralization reaction tank; an interlayer, which is a running water layer, is arranged between the inner layer and the outer layer; a thick acid inlet and a thick alkali inlet are formed in the upper part of the neutralization reaction tank; a running water inlet is formed above the running water layer, and a hot water outlet is formed below the running water layer and is connected with a first circulating pump; the first circulating pump is connected with a heat exchanger; the heat exchanger is connected with drying equipment or heating equipment; a temperature instrument and a pH instrument are arranged in the neutralization reaction tank; the running water layer is provided with a conductivity detection instrument. The high-concentration acid-base reaction device has the benefits that for high-concentration acid-base reaction, the reaction temperature is reduced, and the operation safety is improved; by the adoption of the two-layer structure, leakage of the reaction tank body can be conveniently monitored; the heat exchanger is used for collecting and recycling heat generated by the reaction, so that the operation cost and the handling expenses of an enterprise are lowered.
Owner:KUNSHAN MINGKUAN ENVIRONMENTAL & ENERGY SAVING TECH CO LTD

No-junction field effect transistor and manufacturing method therefor

The invention discloses a no-junction field effect transistor and a manufacturing method therefor, and the method comprises the steps: providing a substrate; carrying out the doping so as to form a first doping region and a second doping region and to enable the doping types of the first and second doping regions to be different; forming a first grid structure and a second grid structure; removing a part of substrate, so as to form a first opening and a second opening; forming metal layers in the first and second openings; and carrying out the annealing of the metal layers and the substrate, so as to form source-drain regions. The invention also provides a no-junction field effect transistor, and the field effect transistor comprises the substrate; the first doping region and the second doping region; the first grid structure and the second grid structure; and the first and second openings, wherein the interiors of the first and second openings are provided with material layers containing metal, and the material layers serve as the source-drain regions. The beneficial effects of the invention lie in that the contact resistance between the source-drain regions and a conductive plug is smaller; the starting current is increased; the performance of the no-junction field effect transistor is improved; the technological difficulty is simplified; and the degree of interface scattering which may happen in the doping regions is reduced to some degree.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Environment-friendly garbage bin heating system

The invention discloses an environment-friendly garbage bin heating system. The environment-friendly garbage bin heating system comprises a garbage bin, a garbage discharge platform is embedded in oneside of the inner wall of the garbage bin, a garbage trestle is arranged on one side of the garbage discharge platform, the other side of the garbage discharge platform communicates with a channel, aheater is mounted on the garbage discharge platform, a fan is erected on one side of the heater, a quick closing door is mounted at an inlet of the garbage trestle, and heating radiators are embeddedin the two sides of the garbage trestle. Hot air of the garbage bin and the channel in the environment-friendly garbage bin heating system is extracted through self negative pressure, no compulsory measure exists, thus safety is high, and a heating effect is good; traditional heating equipment is directly mounted in the garbage bin and thus is prone to being corroded and leaking and low in life,and the traditional idea is changed in the innovative scheme; the defect that hot wind is directly blown into the garbage bin usually, consequently the negative pressure of the garbage bin is reduced,and odor leaks is avoided; and the risks of odor leakage and channel explosion caused due to the fact that hot wind is directly blown into the channel are avoided.
Owner:光大城乡再生能源(萧县)有限公司

Singeing device for polyester filament non-woven geotextile production

InactiveCN111910375AEasy to leakOptimizing the singeing effectSingeingGeotextilePolyester
The invention discloses a singeing device for polyester filament non-woven geotextile production. The device comprises a box body and a flame jetting opening, the flame jetting opening is formed in the middle of one side of the box body, and the top of the inner wall of the side, away from the flame jetting opening, of the box body is rotationally connected with two first steering rollers throughbearings. The middle of the inner wall of the other side of the box body is rotationally connected with a second steering roller through a bearing, and the bottom of the inner wall of the side, closeto the first steering roller, of the box body is rotationally connected with a winding roller through a bearing. When the device is used, a knob is screwed, the position of a sleeve on a cross rod isadjusted, the bottom end of a rotating rod is pushed by the sleeve, and the rotating rod rotates by taking a sliding sleeve at the top end of a fixed rod as an axis, so that the position of an arc-shaped plate is changed, the tightening degree of geotechnical cloth is adjusted, knitting holes of the geotechnical cloth are opened conveniently, and fluff on the surface of the geotechnical cloth leaks more easily; and the singeing effect of the geotextile is optimized, and the contact surface of the arc-shaped plate and the geotextile is arranged to be an arc surface, so that the geotextile is prevented from being scratched.
Owner:周丽华

Key type hidden coded lock and method

The invention relates to the technical field of a coded lock and discloses a key type hidden coded lock and a method. The coded lock structurally consists of an opening reset device and at least one code unit device; an opening reset frame provided by the opening reset device is located between a key type dial-up device and a code setting device; the opening reset frame is provided with a convex block corresponding to an unlock slot arranged on the code unit device; the opening reset device is provided with a top rod corresponding to a positioning pin on the code unit device; the key type dial-up device passes through the opening reset frame through a rotating shaft so that the code unit device is formed into a coaxial structure with the code device. The coded lock and the method providedby the invention are usually used for common individual locks such as complete locks of box, bag, cabinet, door, vehicle and the like, solve the problems that the code of the coded lock is easy to leak and the security coefficient is low, and improve the security coefficient of the coded lock. And moreover, the coded lock provided by the invention is easy in technique and low in cost, is waterproof, moisture-proof and ageing resistant, uses no any other energy sources, is more beneficial for the artistic design of the appearance of the coded lock and gets rid of dependence on the key.
Owner:ELECTRIC POWER OF HENAN LUOYANG POWER SUPPLY +1

Unlocking password setting method of electronic equipment, unlocking method of electronic equipment, and unlocking system of electronic equipment

The invention discloses an unlocking password setting method, an unlocking method of electronic equipment and an unlocking system of electronic equipment. The unlocking password setting method comprises the following steps: providing a visible contact and/or a visible track to be operated in a preset visible region or a visible interface; performing matching verification on the visible contact and/or the visible track operated by the user and a preset visible contact and/or visible track; if not, the verification fails; if so, automatically displaying a hidden contact and/or a hidden track tobe operated in a preset hidden area or a hidden interface; recognizing a hidden contact and/or a hidden track of the user operation, and performing matching verification on the hidden contact and/or the hidden track of the user operation and a preset hidden contact and/or hidden track; if not, indicating that the verification fails; and if so, unlocking the system or unlocking the corresponding application program or unlocking the corresponding function item or unlocking the corresponding private space. Therefore, the complexity and the secrecy of the password are enhanced, and the security ofthe password is greatly improved.
Owner:FUJIAN DUIXIN TECH CO LTD

Anti-seepage water stop structure on water conservancy project

The invention provides an anti-seepage water stop structure on a water conservancy project, and relates to the field of water conservancy projects. The anti-seepage water stop structure comprises a concrete layer, wherein a waterproof plate is fixedly installed on the bottom side of the concrete layer, a same water tank is fixedly installed on one side of the concrete layer and one side of the waterproof plate, a material box is arranged in the water tank, an inserting hole is formed in the water tank, a filter box is inserted into the inserting hole, the bottom side of the filter box is in contact with the material box, and a flow guide plate is fixedly installed in the filter box. According to the anti-seepage water stop structure, a pull rod and a cleaning structure assembly are arranged, so that a cleaning rod cleans the top side of a filter plate through a plurality of brushes, and then the smoothness of the filter plate is guaranteed; meanwhile, a water stop plate is vertically arranged, so that water outlet is facilitated; and in addition, the filter box and a cover plate are arranged, when a large amount of silt is accumulated in the filter box, the filter box can be pulledout by pulling the cover plate, then two bolts are disassembled, then the cover plate can be taken down, so that the silt in the filter box can be conveniently cleaned, and the use of the filter boxis more convenient.
Owner:何铁柱

Self-sinking insertion type subsea pipeline mud-entering leakage test device

The invention discloses a self-sinking insertion type subsea pipeline mud-entering leakage test device, which comprises a mud surface base plate component, a shunting and control component and a mud-entering and leakage hole component, wherein the mud surface base plate component provides a supporting effect for the shunting and control component and the mud-entering and leakage hole component, the shunting and control component provides fluid connection, shunting and remote control functions, and the mud-entering and leakage hole component provides mud-entering construction and under-mud leakage hole simulation functions. According to the device, a remote control underwater device is adopted, the high-pressure cutting principle and the self-weight sinking principle of jet flow are utilized for mud entering construction, and the device is simple and easy to implement. By setting the aperture sizes and positions of the leakage pipe and the base disc nozzle, the leakage position of the real subsea pipeline is simulated, and the device has multiple functions. The device is simple in offshore construction, visible and controllable in water surface in a mud entering state and capable of being repeatedly used, various different leakage conditions can be simulated through one device, and research on subsea pipeline leakage is facilitated.
Owner:徐州睿晓智能科技有限公司
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