1275results about How to "Fix the leak" patented technology

The invention relates to a continuous oil pipe hanger for a velocity tubular column. The continuous oil pipe hanger comprises a continuous oil pipe, an I-shaped flange, an upper slip assembly, a lower slip assembly, an upper shell, a middle shell and a lower shell, wherein vertically penetrating central holes are formed in the upper shell, the middle shell and the lower shell; the I-shaped flange is fixedly arranged at the top of the upper shell; the continuous oil pipe passes through the I-shaped flange and the central holes of the upper shell, the middle shell and the lower shell in turn; the upper slip assembly is clamped on an inner wall of the central hole of the upper shell; the lower slip assembly is located in the central hole of the middle shell; a connecting pipe sealing set is fixedly arranged on an inner wall of the central hole of the middle shell and the lower side of a hanging supporting sleeve; at least one pair of driving pistons is arranged on the inner walls of the central holes of the middle shell and the lower shell and under the connecting pipe sealing set; an upper oil port and a lower oil port respectively communicated with the driving pistons are arranged on the side walls of the middle shell and the lower shell. The continuous oil pipe hanger has the beneficial effect of capability of hanging the continuous oil pipe.

The invention provides a 360-degree light source packaging device, which comprises a substrate, first box dam rubber, a first fluorescent glue layer, one or more chips, one or more connecting units, second box dam rubber and a second fluorescent glue layer, wherein the first box dam rubber is located at the upper part of the substrate and surrounds the first fluorescent glue layer; the chips are located on the first fluorescent glue layer; the connecting units are connected to the chips and the substrate; the second box dam rubber is located at the upper part of the substrate and surrounds the second fluorescent glue layer; and the second fluorescent glue layer coats the chips, the first fluorescent glue layer, the connecting units and the first box dam rubber.

The invention discloses a vacuum formation method of a lithium ion battery. In the method, an electrolyte injection process and a formation process of the battery are completed by adopting an integrated fixture with electrolyte-injecting and charging functions and a vacuum formation device with charging and vacuumizing functions. The vacuum formation device charges the battery arranged in the integrated fixture, and the battery is electrically connected with the vacuum formation device by the integrated fixture. The vacuum formation method of the invention provides an enclosed and controllable microenvironment, thereby reducing electrolyte waste, avoiding overflow loss of electrolyte and corrosion on a battery casing, the fixture or charging equipment, and effectively reducing environmental pollution.

The invention discloses a continuous query oriented location anonymizing method applicable to a location service system, belonging to the technical field of privacy protection of location service, which comprises the steps of: proposing an anonymizing request by a mobile user; anonymizing the request by an anonymizing module in an anonymizing server, and sending the anonymized request to a location server; processing the request by the location server, integrating query results and sending to the anonymizing server; integrating and filtering received candidate results by a query processing module of the anonymizing server, and sending a precise result to the corresponding mobile user. According to the anonymizing method, personalized customization of privacy protection parameters of the user is permitted. The anonymizing module operates in the anonymizing server, and is used for calculating by the anonymizing method provided by the invention depending on the privacy protection parameters of the mobile user, to guarantee that all anonymizing regions of the mobile user include an identical number of queries in a query valid period and the anonymizing space is shared by the mobile users in the space; and the query privacy of the mobile user who proposes a continuous query in the location service is effectively protected.

The invention relates to a simple, high-efficiency and reliable cold-warm air-conditioning water heater, which comprises a refrigerant loop, a hot-water condensing heat exchanger, a hot-water storing box and a signal acquisition and circuit control system. A scheme I of the invention is characterized in that: an exhaust opening of a compressor is connected with an air inlet of a three-way valve; a first air outlet of the three-way valve is connected with a refrigerant inlet of the hot-water condensing heat exchanger, and a second air outlet is connected and communicated with a first interfaceof a four-way valve and a refrigerant outlet of the hot-water condensing heat exchanger; a second interface, a third interface and a fourth interface of the four-way valve are respectively connected with the upper ports of an outdoor-wind heat exchanger and an indoor-wind heat exchanger and an air inlet of an air-liquid separator, and a capillary is connected in series between the lower ports of the outdoor-wind heat exchanger and the indoor-wind heat exchanger; an air outlet of the air-liquid separator is connected with an air inlet of the compressor; and an electromagnetic guide-valve low-voltage air-outlet pipe of the three-way valve is communicated with an air-sucking pipe of the compressor, and an electromagnetic guide-valve high-voltage air-inlet pipe of the four-way valve is communicated with an exhaust pipe of the compressor. A scheme II of the invention is characterized in that: the hot-water condensing heat exchanger is added between the exhaust opening of the compressor of a refrigerant-circulating loop of a cold and warm air conditioner and an air inlet of the four-way valve, and the electromagnetic guide-valve high-voltage air-inlet pipe of the four-way valve is communicated with the exhaust pipe of the compressor; and the two technical schemes both have four functions of hot-water making and refrigerating, hot-water making, refrigerating and heating.

The invention relates to a voice communication platform with hidden bilateral numbers. The voice communication platform includes the following modules: a business interface module; a data providing interface which is intended for transmitting added, deleted and modified business information of a user business system to the voice communication platform; a database module which is intended for saving user data and business information; a calling module which is intended for controlling a calling party to initiate a call and connecting a called party, and displaying the processing of communication procedures and the generation of a call bill at the called party side; a voice communication module which is intended for conducting signaling and voice communication with a communication operator, conducting intelligent telephone traffic routing and queuing, conducting automatic checkup, calculation and matching business relations, analyzing the number of the called party where the call requires continuing and displaying a temporary private number to the called party side; a system safety module which is intended for ensuring safe and stable operation of the system. According to the invention, the voice communication platform effectively protects leakage of the telephone numbers of two parties or core information of the platform, protects user privacy and protects information from grabbing, and prevents hop transactions.

The invention discloses a vehicle networking structure based on a block chain and a working method thereof. The vehicle networking structure comprises an interconnected vehicle entity, a vehicle-mounted unit OBU, a roadside unit RSU, a core network and a block chain network. It has the typical characteristics of decentralization, distribution, collective maintenance and incapability of tampering.It can effectively solve the problem of centralization of traditional vehicle networking architecture and mutual distrust between entities. At that same time, the invention provides an undirected graph generation method, an identity privacy protection method and a location privacy protection method when the beacon information is uploaded by a vehicle, thereby solving the problem of identity and location privacy disclosure of a vehicle networking architecture based on a block chain.

The invention relates to a testing method of the leakage rate of a high-temperature sealing gasket and a testing device thereof, which establishes the corresponding testing method of the leakage rateof the high-temperature sealing gasket. The testing method and the testing device thereof perfect the testing method of the leakage rate of the high-temperature gasket, have reasonable structure, ensure the high precision in measuring the pressure of a leakage detecting cavity, and overcome the problem of large experimental error because the leakage detecting cavity is not tightly sealed, so the leakage rate test of the high-temperature gasket can be realized easily. The structure of the leakage detecting cavity is improved, and the testing method of the leakage rate of the high-temperature gasket by using a low-pressure region as the leakage detecting cavity is established. The invention plays a positive role in researching the sealing performance of the high-temperature gasket and promoting the progress of the sealing technique, and well meets the requirements of the high-speed development of the modern industry for gasket sealing.

The invention discloses a secure mutual authentication and key agreement protocol under the Internet of Things environment. The secure mutual authentication and key agreement protocol comprises the following steps: step A, a registration phase: submitting own ID information to a server S by a user Ui, and registering to become a legal user; and step B, a login and authentication phase: performing two-way identity authentication and key agreement by the registered user Ui and the server S, and establishing a session key for the communication. The secure mutual authentication and key agreement protocol under the Internet of Things environment provided by the invention solves the unsafe problems of information leakage and stealing of the two communication parties in the Internet of Things communication, and has higher performance and efficiency in the similar security protocols. The invention adopts an elliptic curve cryptography algorithm, and realizes key negotiation and establishment with low consumption and high security on devices such as embedded devices and so on with limited computing power and storage resources.

The invention relates to an enhanced MASK code method for resisting DES (data encryption standard) power consumption attack, comprising the steps as follows: step 1, realizing two rounds of DES (data encryption standard) calculations with a pipeline operation mode, realizing a calculating circuit by means of a first calculating circuit and a second calculating circuit which are mutually independent and isolated; step 2, realizing the DES (data encryption standard) calculation processes from the third round to the fourteenth round by means of a random positioning logical operation mode; step 3, realizing the last two rounds of DES (data encryption standard) calculations by means of a pipeline operation mode, and realizing the calculating circuit by means of a third calculating circuit and a fourth calculating circuit which are mutually independent and isolated, wherein each round of the DES (data encryption standard) calculations in step 1 to 3 is calculated with a MASK code method. The method provided by the invention not only reduces the design area of the chip, but also completely solves the problem in the prior art in which the two adjacent rounds of the MASK code solutions have a Hamming distance leakage, and keeps the sensitive information between wheels from leakage, and simultaneously keeps the Hamming distance and other sensitive information between two adjacentwheels from leakage, and effectively resists the power consumption attack.

An embedded electrode frame of a flow cell pile belongs to the technical field of flow cell manufacturing. The embedded electrode frame is characterized in that a first bipolar plate frame (5) used as a positive pole half-cell of a single cell, a second bipolar plate frame (6) used as a negative pole half-cell of another adjacent single cell and a bipolar plate (9) clamped between the first bipolar plate frame (5) and the second bipolar plate frame (6) are connected sequentially to form an electrode frame (4). The first bipolar plate frame (5) and the second bipolar plate frame (6) achieve accurate location by means of a mutually embedded structure formed by a boss and a groove. A sealing ring groove provided with a sealing ring is arranged on the surface of the electrode frame which are formed by the first bipolar plate frame and the second bipolar plate frame, the sealing ring groove locates on the combined surface where the boss and the groove are in clamping connection to facilitate installation and sealing, and the flow cell pile is formed by connecting a plurality of electrode board frames.

The invention relates to a preparation method of an aluminum alloy sheet, particularly a preparation method of a nanoparticle-reinforced Al-Fe-Cr-Ti-Re heat-resistant aluminum alloy sheet. The invention aims to solve the problems of complex technique, high cost and multiple defects in the existing method for preparing the compacted large-size aluminum alloy sheet, and the problem of poor mechanical properties of the prepared Al-Fe-Cr-Ti-Re alloy sheet at room temperature and high temperature. The method comprises the following steps: proportioning materials, and preparing spherical alloy powder from the refined and degassed melt by a gas atomization method; and sequentially carrying out cool isostatic pressing, canning vacuum degassing, hot isostatic pressing, hot extrusion and rolling on the alloy powder to obtain the nanoparticle-reinforced Al-Fe-Cr-Ti-Re heat-resistant aluminum alloy sheet. The invention is mainly used for preparing the Al-Fe-Cr-Ti-Re heat-resistant aluminum alloy sheet.

The invention relates to a neo-gambogic acid SLN (solid lipid nanoparticle) and a preparation method thereof. The neo-gambogic acid SLN comprises a therapeutically effective amount of neo-gambogic acid, medicinal phosphatide, a surfactant and a lipid material. In the invention, the neo-gambogic acid is prepared into SLNs (solid lipid nanoparticles), thereby improving the solubility of the neo-gambogic acid, reducing the irritability, improving the bioavailability, and prolonging the action time of medicaments in a human body, in addition, the neo-gambogic acid SLNs can be gathered partially in the human body so as to play the targeted action of the SLNs and exert the anti-cancer therapeutic action of the SLNs better.

The invention discloses a substrate integrated waveguide microwave tunable filter based on a liquid crystal material, wherein the substrate integrated waveguide microwave tunable filter belongs to the technical fields of wireless communication, satellite communication, radar system, etc. Particularly the invention relates to a filter based on the liquid crystal material. The filter settles a problem of liquid crystal material leakage in an existing packaging process. The filter settles a problem of impedance mismatch in manners of interlayer through hole interconnection and strip line stepped impedance transformation. A modulating voltage is added through direct contact type feeding. A bandpass filter is realized through etching an open resonance ring structure on an upper-surface metal layer of a substrate integrated waveguide. The upper-surface metal layer of the substrate integrated waveguide is reversed for contacting with the liquid crystal material, thereby forming the substrate integrated waveguide tunable filter based on the liquid crystal material. The substrate integrated waveguide microwave tunable filter settles the problem of liquid crystal leakage in a traditional packaging method and has effects of impedance matching and continuous adjustable frequency response of the filter.

The invention relates to a stable gas membrane used for removing, recovering, and gathering ammonia or organic amine from dosage liquor or wastewater. The gas membrane comprises a membrane shell, hollow fibrous membranes (A) and hollow fibrous membranes (B). A cavity is provided in the middle of the membrane shell. An inlet and an outlet are respectively arranged on each of the two ends of the membrane shell. The hollow fibrous membranes (A) and the hollow fibrous membranes (B) are positioned in the cavity of the membrane shell. A shell pass outlet communicating with the atmosphere is arranged on a lower end of the membrane shell. The hollow fibrous membranes (A) and the hollow fibrous membranes (B) are uniformly arranged in the membrane shell with regular spaces. Dosage liquor or wastewater containing ammonia or organic amine is delivered through the tube pass of the hollow fibrous membranes (A), and absorption liquid is delivered through the tube pass of the hollow fibrous membranes(B). With the gas membrane provided by the invention, problems of traditional gas membranes of leakage and low service life are overcome; dilution of a byproduct ammonium salt solution caused by a concomitant osmotic distillation phenomenon can be effectively inhibited; ammonium salt concentration of the byproduct ammonium salt solution can be increased from 10-20% to 20-40%; mass transfer coefficient at the acid absorption liquid side can be substantially improved; the ammonia removing efficiency is high; the ammonia removing effect is stable for a long-term; and the service life of membranesets can be improved by 3-10 times than common gas membranes.

The invention provides a method for preparing a phase-change heat-storage fiber membrane with a core-shell structure by utilizing a coaxial electrospinning technology. The method comprises the following steps: (1) adding a phase change material into a first solvent, and stirring until completely dissolving to obtain a core layer solution; (2) adding a polymer material into a second solvent, and stirring until completely dissolving to obtain a shell layer solution; (3) injecting the core layer solution obtained in the step (1) and the shell layer solution obtained in the step (2) into two solution channels of a coaxial electrospinning device correspondingly, and adjusting coaxial electrospinning parameters for electrospinning to obtain the phase-change heat-storage fiber membrane with the core-shell structure. The preparation method of the phase-change heat-storage fiber membrane, proposed by the invention, is simple; equipment and the technology are mature; the used raw materials are non-toxic, harmless and wide in source, so that the production cost is low; and the phase-change heat-storage fiber membrane can be used for fields of energy-saving building materials, phase-change heat-storage systems, functional fabrics and the like, thereby providing a new idea for development of phase-change heat-storage materials.

The invention provides a gear-free tractor with a magnetorheological fluid brake, which is used for solving the problem that a brake used by the gear-free tractor is a friction brake. Key points of the invention are that: two ends of a gap are provided with one magnetic field respectively; a device for forming a magnetic field is an annular sealing assembly; the annular sealing assembly is fixed on an outer stator assembly; a gap is formed between the outer stator assembly and an inner rotor; the magnetorheological fluid brake is fixed on a tractor shell by using bolts; and a driving shaft of the tractor is inserted into and fixed in a shaft sleeve of the inner rotor of the magnetorheological fluid brake. The invention has the advantage that: the brake is prevented from being worn and has no opening or closing noise, so that the advantages of the gear-free tractor are brought into play.

The invention discloses a seabed natural gas collecting device for suspension buoyancy tank electric heating, and belongs to the technical field of natural gas collection. The device comprises a mother ship and a hollowed natural gas collecting cover; a natural gas storage device is arranged on the mother ship, and is connected to the top of the natural gas collecting cover through a gas extracting pipeline; the natural gas collecting cover is connected to the bottom of the mother ship through a water separation pipe; the gas extracting pipeline is arranged in the water separation pipe; anchoring systems are arranged around the bottom of the natural gas collecting cover; a pressure adjusting system is arranged at the bottom of the natural gas collecting cover; a propelling system is arranged on the outer wall of the natural gas collecting cover; a density adjusting system is arranged on the natural gas collecting cover; and a temperature adjusting system and a stirring system are arranged in the natural gas collecting cover. The device mainly solves the problem of incapability of forming emission and leakage of natural gas in the decomposition, collection and extraction process of natural gas hydrates on a seabed mud bed.

The invention discloses a graphitized graded porous carbon composite phase change energy storage material and a preparation method thereof. A carbon precursor with a low price, a graphitization catalyst and a pore-forming agent are used as raw materials and are treated through technologies including ball milling and mixing, carbonization and the like to prepare graphitized graded porous carbon; then the prepared graphitized graded porous carbon is used as a supporting material and is compounded with a phase change material to obtain the graphitized graded porous carbon composite phase change energy storage material. The porous carbon material prepared by the invention has a three-dimensional intercommunication graded porous network structure and a high graphitization degree; the sizing andpackaging of the phase change material are easy to realize; meanwhile, a good heat-conducting network channel can be provided and the heat transferring performance is enhanced; the porous carbon material is prepared by adopting an additive containing metal salt; in a preparation process, part of metal substances can be reduced by utilizing carbothermal reduction reaction and the heat conduction performance of the material is further increased, so that the composite phase change energy storage material with high heat conduction performance and good chemical stability is obtained.

The invention discloses a train pipe low-pressure protection system and method applicable to a locomotive braking system, belonging to the field of locomotive braking systems, and aiming at solving the problems that precontrol pressure fluctuation is large, total wind consumption is high and energy is wasted when the traditional pressure limiting method is adopted and braking force of the locomotive is easy to attenuate. The train pipe low-voltage protection system disclosed by the invention comprises a pressure regulating valve, a two-position three-way pneumatic valve, an or gate shuttle valve, a fireless feedback safety valve, an operating valve and a volume chamber, wherein pressure of the volume chamber is only related to commonly pressure reduction of a train pipe, a channel used for controlling the operating valve is added by virtue of the pressure regulating valve, the two-position three-way pneumatic valve and the or gate shuttle valve, low pressure protection on the train pipe is realized by virtue of the added control channel, and control function of the braking system is improved. By adopting the train pipe low-pressure protection system and method disclosed by the invention, low pressure protection on the train pipe is realized, the problem that leakage is caused in a DK-1 braking system such as a distributing valve, a safety valve and the like is solved, and life cycle operating cost of a locomotive is saved.