25results about How to "Guaranteed isolation" patented technology

The utility model discloses mechanical plugging layer-by-layer oil extraction device, including flow guide pipe, the one end of flow guide pipe is connected with the upper packer, and the other end is connected with the lower packer, and the three are all connected through upper and lower joint, the upper packer is used for plugging the upper end of the well section of plugging object, and the lower packer is used for plugging the lower end of the well section of plugging object, the upper packer, the lower packer and the flow guide pipe inside all are provided with gas flow guide passage, make the dissolved gas of lower oil layer free come out in turn through lower packer, flow guide pipe, upper packer and enter the oil jacket annular space of upper portion, finally discharge from wellhead. The utility model discloses device solved the gas lock problem of existing technology when sealing upper and extracting lower, can be used as the plugging tool of oil layer when sealing upper and extracting lower of oilfield long stop oil well, high water cut oil well, can improve oil well mining efficiency, reduce development cost, obtain greater economic benefit.

The utility model belongs to air filter element technical field discloses integrated injection molding air filter element seamless outer frame, including main frame, vice frame body, a plurality of installation slot that set up on main frame, two first sliding slot that set up on main frame and a plurality of rear limit board that are located main frame rear side, main frame, a plurality of installation slots, two first sliding slots and a plurality of rear limit board are integrally formed by polyurethane foaming material through the mode of pouring into forming mould, vice frame body is detachably connected with main frame through mounting assembly, the utility model discloses the design of adjustable height of movable plate, cooperation vice frame body on a plurality of plug-in slots and elastic plug-in rod locking structure, can freely adjust the filter material containing cavity height that constitutes by lower limit board and upper limit board, makes user not need to replace outer frame main body, through simple operation can adapt to different height filter material, has promoted the scope of application, effectively reduced the replacement cost when using different filter material.

The utility model relates to the technical field of slag baffles, and discloses an anti-splashing furnace mouth slag baffle for metallurgical engineering, which comprises a furnace body, a fence is arranged above the furnace body, a left baffle and a right baffle are respectively arranged on the left side and the right side in the fence, and a guide unit is arranged in a crack between the left baffle and the right baffle. Limiting cylinders are fixedly connected to the upper surfaces of the left baffle and the right baffle, limiting rods are inserted into the limiting cylinders, moving units are arranged on the outer sides of the limiting rods, and fixing rings are fixedly connected to the back faces of the left baffle and the right baffle. According to the utility model, the left baffle and the right baffle can form a complete slag baffle at the furnace mouth, and the guide unit, the limiting cylinder, the limiting rod, the moving unit and the fixing ring are matched, so that when the left baffle or the right baffle is damaged, the damaged part is independently replaced, and the slag can be isolated in the replacement process; the influence on the extraction of the melt is avoided.

This utility model discloses an oxidizing atmosphere isolation box and a bright solution treatment furnace for steel, which effectively isolates the oxidizing atmosphere. The oxidizing atmosphere isolation box is suitable for bright solution treatment furnaces for steel, which include at least a gas exchange section, a heating section, a rapid cooling section, and a slow cooling section. The oxidizing atmosphere isolation box is installed in the gas exchange section and / or the slow cooling section. The oxidizing atmosphere isolation box includes a box body, a driver, a driving component, and a mounting base. The box body has a sealed cavity with a bottom opening. The driver is installed in the box body, and the driving component is located in the sealed cavity. The driving component is connected to the output end of the driver. The driver drives the driving component to move up and down in the sealed cavity. The mounting base is installed at the lower end of the driving component and extends downward beyond the opening end of the sealed cavity. The mounting base is loaded with a sealing component for bonding with the steel. The driver drives the driving component to move up and down, which in turn drives the mounting base to move up and down synchronously, so that the sealing component is tightly bonded to the steel flowing into the gas exchange section and / or the slow cooling section.

The utility model provides a novel pressurized injection device, and the syringe can be used for injecting pressurized liquid, the fixed seat is provided on the syringe control module, the movable seat is movably arranged on the syringe control module, the injection cylinder of syringe is fixedly arranged on the fixed seat, the piston rod of syringe is fixedly arranged on the movable seat, and the power source part of syringe control module controls the reciprocating movement of movable seat, thereby controlling the reciprocating movement of the piston rod of syringe, and further comprising detection module for detecting the push -and -pull of piston rod. The output port of syringe is connected with pressurized valve assembly control module, and the pressurized valve assembly control module comprises at least two output ports, the communication between the output port of syringe and different output ports is switched through pressurized valve assembly control module, the output or extraction of liquid from different output ports can be realized. The utility model can replace the doctor to execute balloon pressurization in radiation environment, and can make the complicated valve control and syringe bolus operation automation.

This invention discloses a high-voltage solid-state soft starter device with a built-in redundant control module, relating to the field of soft starter technology. It includes a cabinet and a linkage control assembly, with a control compartment at the top of the cabinet. During use, when no power outage is required for maintenance, the female connector, thanks to the freely stretchable nature of its spring wire, can be pulled out of the equipment compartment along with the male connector. During maintenance, the electrical connection between the control board and the soft starter is maintained to achieve hot-swapping. When a power outage is required for maintenance, disconnecting the male connector from the female connector causes the soft starter to lose power and stop, achieving cold-swapping. This application, through the design of the plug-and-play maintenance assembly, allows operators to select between hot-swapping and cold-swapping maintenance methods by pulling a handle or pressing a push rod, depending on their actual needs. By maintaining power supply to the equipment during maintenance, downtime is reduced, allowing the production line to continue operating.

This invention discloses a method for full lifecycle debugging of RTOS in AMP systems based on Linux terminal penetration. The core steps of this method include: during system initialization, loading an enhanced inter-core communication driver, configuring multiple functional channels and shared memory, completing interactive terminal application initialization, and adapting to multi-mode interaction; during command pass-through and forwarding, capturing user input and processing it differently, encapsulating it according to a preset protocol, and achieving differentiated transmission through an adaptive window flow control algorithm; during real-time response echoing, ensuring interaction consistency based on bidirectional state synchronization and precise terminal simulation; and during the full lifecycle startup log capture stage, achieving full startup log capture, Linux-side time alignment, and late-start recovery. This invention requires no additional hardware, reduces debugging costs and system resource consumption, improves multi-core collaborative debugging efficiency, achieves full lifecycle debugging coverage of the RTOS, and is adaptable to resource-constrained small-core scenarios.

This invention provides a dehumidification system and method for the main cable saddle rollers of a suspension bridge. A sealed protective component encloses the rollers to form a sealed space around and above them. Combined with the synergistic operation of the dehumidification component and the airflow transmission component, efficient humidity control of the closed environment of the roller system is achieved. The design of the sealed protective component ensures the isolation of the rollers from the external environment, preventing moisture intrusion. Simultaneously, the dehumidification component is installed inside the main tower crossbeam, making full use of the bridge structure space, avoiding equipment occupying construction area, and improving the system's integration and adaptability. The airflow transmission component maintains a low-humidity state within the sealed space by circulating dry air, effectively preventing construction interruptions or equipment damage caused by roller failure. This improves the efficiency and reliability of bridge construction, making the construction of suspension bridges more robust in high-humidity environments such as canyons and waterways, and providing technical assurance for the long-term stable operation of the main cable saddle.

This application provides a radio frequency (RF) front-end module, relating to the field of RF technology. The RF front-end module includes a power amplification module, a signal coupling module, and a detection module. The signal coupling module includes a control unit and a bidirectional coupling circuit, which is connected between the power amplification module and the detection module. The control unit is configured to control the bidirectional coupling circuit to be in a conducting state. The bidirectional coupling circuit is configured to couple the RF signal on the signal transmission line of the power amplification module to the detection module. The detection module is configured to detect a pre-distortion signal based on the coupled signal transmitted by the bidirectional coupling circuit. This application achieves bidirectional coupling by coupling the transmitted and echo signals on the signal transmission line of the power amplification module to the detection module, thereby enabling accurate detection and feedback of the nonlinear characteristics of the power amplification module's core. Based on this, the pre-distortion signal determined is more accurate.

This invention relates to the field of biomass gasification furnace technology and discloses a feeding structure for a biomass gasification furnace, including a furnace body. A feed lifter is located on one side of the furnace body, and an upper feed pipe is located on one side of the top of the furnace body. The upper feed pipe is positioned below the top end of the feed lifter. The feed lifter raises biomass fuel and feeds it into the furnace body through the upper feed pipe. An auger shaft is located inside the furnace body, and spiral blades are fixedly installed on the auger shaft. A discharge channel is located at the top of the furnace body, and an upper sealing plate and a lower sealing plate are installed within the discharge channel. The upper and lower sealing plates alternately block the discharge channel during feeding. By alternately blocking the discharge channel with the upper and lower sealing plates, when the upper sealing plate opens, the lower sealing plate is in a blocked state; when the upper sealing plate closes, the lower sealing plate opens. This ensures that the gasification furnace is always isolated from the outside environment, achieving continuous feeding of the gasification furnace without leakage.

This application provides a corrosive sewage pipeline inspection device with a protective structure, relating to the field of sewage pipeline inspection technology. It includes a corrosion-resistant sealed protective box, with a sealed inspection box fixedly installed on the front side of the protective box. A turntable is rotatably installed inside the sealed inspection box. A sewage pipeline sealing protection imaging and inspection component is incorporated, forming a double-sealed structure between the corrosion-resistant sealed protective box and the sealed inspection box. A sealed rotating cylinder rotates within a rotating sealing groove, ensuring that the internal components are isolated from corrosive sewage. A sealed mounting bracket protects the imaging and inspection camera and supplementary lighting, and a sealing plug in the battery compartment prevents corrosion of the charging interface. The overall design improves the device's durability in corrosive environments. Furthermore, the sealed rotating cylinder, sealed mounting bracket, and the imaging and inspection camera can be directly powered through the battery compartment during rotation, eliminating the need for additional cables and preventing cable entanglement during rotation.

The invention provides an ultra-wideband millimeter wave antenna, which belongs to the field of microwave technology and antenna engineering and comprises a horn radiation cavity, a parasitic patch layer, a radiation patch layer and a feed layer which are sequentially stacked from top to bottom, the metalized via hole arrays in the parasitic patch layer, the radiation patch layer and the feed layer respectively define a first cavity, a second cavity and a third cavity; the horn radiation cavity coincides with the central axes of the first cavity, the second cavity and the third cavity. The parasitic patch is arranged on the upper surface of the parasitic patch layer and is positioned right above the center of the first cavity; the radiation patch is arranged on the upper surface of the radiation patch layer and is positioned right above the center of the second cavity; the metal grounding plate is arranged on the lower surface of the feed layer; the band-ground coplanar waveguide transmission line is arranged on the upper surface of the feed layer and is connected to one end of the strip-shaped feed line through the metalized feed via hole, and the other end of the strip-shaped feed line is connected to the radiation patch; an antenna array is also provided. And dual improvement of bandwidth and gain of the millimeter wave antenna is realized.

The application discloses a high-density high-purity polycrystalline kaolinite preparation method under hot isostatic pressing conditions. –3 The steel ladle is placed in a graphite furnace cylinder body of a hot isostatic pressing high-pressure container, and a graphite sealing cover is covered on the steel ladle; argon is used as a pressure transmission medium, a multi-gradient cylinder body temperature and pressure increasing mode is adopted, the pressure in the cylinder sample bin is increased to 105.8 MPa, the temperature is increased to 800 DEG C, and the temperature and pressure are kept for 4.8 hours; a multi-gradient cylinder body temperature and pressure decreasing mode is adopted, the temperature in the cylinder sample bin is decreased to 177 DEG C, and the pressure is decreased to 71.8 MPa; finally, the pressure is released, the temperature is decreased to room temperature, and the polycrystalline kaolinite aggregate is obtained; and the technical blank of preparing a high-density polycrystalline kaolinite aggregate bulk body rich in aluminosilicate mineral experimental samples under high-temperature and high-pressure conditions is solved.

The utility model discloses a sample deoiling filter suitable for a water quality analyzer, and relates to the field of wastewater treatment equipment. The filter comprises the filter main body, the filter main body comprises the shell, the mounting block is arranged in the middle of the outer side of the shell, the cleaning mechanism is arranged, the magnetic ring is connected with the magnetic ring through magnetic force, so that the cleaning mechanism can slide on the inner wall of the filter bin, manual intervention is not needed in the cleaning process, and the cleaning efficiency is improved. The automation degree is improved, the maintenance workload is reduced, a plurality of vibration motors are integrated in the side groove in the outer side of the magnetic suction ring, so that the cleaning effect is enhanced, vibration can help bristles to more effectively remove stains and oil stains attached to the outer filter layer, a circuit line can be conveniently connected with the vibration motors due to the design of a wiring port in the top of the magnetic suction ring, and the service life of the circuit line is prolonged. A circuit line adopts a miniature coaxial cable, and the cable has excellent signal transmission performance and anti-interference capability, so that the vibration motor can work stably.

This invention discloses a method for preparing high-density, high-purity polycrystalline barite polymers under hot isostatic pressing conditions, wherein barite sample powder is compacted and sealed to a vacuum degree of 10. –3 The sample was placed in a steel cladding with dimensions of 55.89 mm outer diameter × 88.76 mm height × 3 mm wall thickness. The cladding was then placed inside the graphite furnace cylinder of a hot isostatic pressure vessel and sealed with a graphite cap. Using argon as the pressure transfer medium, a multi-gradient cylinder heating and pressurization method was employed to raise the temperature inside the sample chamber to 950 °C and the pressure to 112.5 MPa. This pressure and temperature were maintained for 6.0 hours. A multi-gradient cylinder cooling and depressurization method was then used to lower the temperature inside the sample chamber to 178 °C and the pressure to 71.1 MPa. The pressure was then released and the sample was cooled to room temperature to obtain a polycrystalline barite polymer. This method filled the technical gap in the preparation of bulk sulfate experimental samples of high-density polycrystalline barite polymers under high temperature and high pressure conditions.

The invention provides a lightning-proof overhead insulated cable, which relates to the technical field of insulated cables and comprises an insulated cable mechanism, an outer protection mechanism and a mounting mechanism. The insulated cable mechanism comprises an outer sheath, a first insulation sleeve, a second insulation sleeve, a buffer strip, a first insulation filling material, a flame-retardant sleeve, an inner sheath, an extrusion strip, a wire core body, a steel core strip and a second insulation filling material, the inner wall of the outer sheath is connected with the outer wall of the first insulation sleeve, and the second insulation sleeve is arranged on the inner wall of the first insulation sleeve. According to the invention, high-performance basic protection is provided through the insulated cable mechanism, adjustable enhancement and lightning protection functions are realized through the outer protection mechanism, wire clamp fixation, outer protection connection and grounding discharge are completed through the installation mechanism, and the lightning protection capability, the structural stability and the installation and maintenance convenience of the overhead insulated cable are remarkably improved through the synergistic effect of the three parts.

The application belongs to the technical field of lamps, and particularly relates to an explosion-proof lamp and an assembling method thereof. The explosion-proof lamp comprises a mounting shell, an explosion-proof cover, a lighting assembly, a buffer pre-tightening assembly and a transmission assembly. The inside of the mounting shell is provided with a mounting cavity. The explosion-proof cover is arranged at the lower end of the mounting cavity and is used for isolating the mounting cavity from the outside to prevent the lamp from exploding. The lighting assembly is slidably arranged at the upper end of the mounting cavity and is used for lighting. The buffer pre-tightening assembly is used for buffering and pre-tightening to ensure the lighting stability of the lighting assembly. The transmission assembly is used for adjusting the position of the lighting assembly. The explosion-proof lamp has the advantages that when the lamp is replaced and assembled, the transmission assembly is arranged, the combined transmission mode of worm and screw transmission is used, the lighting assembly is freely extended, the self-locking property of the kneading transmission of the worm and the worm ensures the position stability of the worm as a whole when the telescopic rod is extended or retracted.

The application relates to the technical field of new energy vehicles, and discloses a graphene electric heating pipe for a new energy vehicle and a welding device thereof, which comprises a graphene electric heating pipe body, water nozzles are sealingly connected to the two ends of the graphene electric heating pipe body, an electrode busbar is fixed to the surface of the graphene electric heating pipe body, electrode pads are arranged on the surface of the graphene electric heating pipe body, and electrode sheets connected with the electrode pads are arranged on the electrode busbar. The graphene electric heating pipe assembly uses graphene as a heating material in a new energy vehicle, and compared with a traditional silver-palladium thick film heating material, the graphene electric heating pipe assembly has better heating effect, the two ends are sealed through the sealing water nozzles, the cooling liquid and the external circuit are isolated, the risk of liquid leakage and electric leakage is reduced, and the safety is improved.

This specification relates to the field of wireless communication antenna technology, and provides an antenna system and electronic device. The antenna system includes a suspended first radiating stub. The two ends of the first radiating stub generate a first resonance and a second resonance respectively through a first feed circuit and a second feed circuit. A choke circuit is set in the first radiating stub between the first feed circuit and the second feed circuit. By setting a choke circuit in the suspended stub, the currents of the first resonance and the second resonance on the suspended stub are prevented from affecting each other, thus ensuring antenna isolation. While improving the antenna isolation performance, the suspended stub can be used to support SAR detection.

The application relates to the technical field of electronic circuits, and discloses a serial port three-in-one interface circuit, a control method thereof and a serial port system chip, the circuit comprising an RS422 data sending module, an RS485 transceiver module, an RS232 transceiver module, a level type sending selection circuit, a first receiving selection circuit, a second receiving selection circuit, a multiplexed receiving signal circuit and a serial port wiring terminal; the circuit is used for realizing serial port communication between a serial port controller and a peer device in different communication modes according to different combinations of three control signals configured at control ends of corresponding modules or circuits. The realization of the serial port three-in-one reduces the pin number and volume of the wiring terminal and the like.

The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions. –3 The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions, which comprises the following steps: completely sealing trachyandesite sample powder in a ladle cover with a vacuum degree of 10 –3 Pa; placing the ladle cover in a graphite furnace cylinder body of a high-pressure container of a hot isostatic pressing device, covering a graphite sealing cover; taking argon as a pressure transmission medium; adopting a multi-gradient hot isostatic pressing forming process of first increasing pressure and then increasing temperature to increase the temperature in the cylinder body sample bin to 950°C and the pressure to 91.5 MPa, and keeping constant temperature and constant pressure for 6.8 hours; adopting a multi-gradient cylinder body temperature and pressure decreasing mode to decrease the temperature in the cylinder body sample bin to 176°C and the pressure to 58.7 MPa; and finally, decreasing the pressure and temperature to room temperature to obtain a polycrystalline trachyandesite aggregate sample; and the technical blank of preparing a large bulk experimental sample of high-densification polycrystalline trachyandesite aggregate under high-temperature high-pressure conditions is solved.

The utility model discloses a urine collecting and storing device which comprises a U-shaped clamping frame supporting shell, a urine receiving opening is formed in the upper end of the U-shaped clamping frame supporting shell, a funnel-shaped urine receiving shell is fixedly arranged at the bottom end of the urine receiving opening, and the bottom end of the funnel-shaped urine receiving shell is fixedly connected with an opening of a urine collecting bottle. The bottom of the urine collecting bottle is fixedly connected with the surface of the bottom end of the U-shaped clamping frame supporting shell, a ring pad is fixedly arranged on the surface of a urine receiving opening in the upper end of the U-shaped clamping frame supporting shell, the urine receiving opening of the U-shaped clamping frame supporting shell is movably provided with a sealing assembly, and the sealing assembly can cover the urine receiving opening in a sliding mode; according to the utility model, the probability that a sample is polluted can be reduced, an accurate and reliable urine sample is provided for subsequent detection, and a detection result is ensured to reflect the health condition of a human body truthfully.

An elastic wave device includes a substrate, a first transmission filter provided on a first main surface of the substrate and having a transmission band of a first frequency band in frequency division duplexing as a passband, a first reception filter provided on the first main surface of the substrate and having a reception band of the first frequency band in the frequency division duplexing as a passband, a second transmission filter provided on the first main surface of the substrate and having a transmission band of a second frequency band in the frequency division duplexing as a passband, a second reception filter provided on the first main surface of the substrate and having a reception band of the second frequency band in the frequency division duplexing as a passband, and a first antenna terminal provided on a second main surface of the substrate, the first transmission filter is provided closer to the first antenna terminal than the second transmission filter, and the first reception filter is provided closer to the first antenna terminal than the second reception filter. Thereby, isolation between frequency bands is ensured to reduce loss.

This invention discloses a method, apparatus, device, and medium for secure direct access to PCIe devices by a client machine, belonging to the field of virtual machines. The method includes: adding a region setting for direct memory access to PCIe devices in the client machine's device tree file, adding a PCIe bus description node, referencing the region in the node, and removing the IOMMU and DMA consistency attributes of the node; adding a memory region description in the client machine's Jailhouse configuration file, defining the range of the memory address pool in the memory region, and adding a marker to the address pool; when adding a PCIe device to the client machine in the Jailhouse driver, obtaining the pointer address of the pci_dev device information structure through the configuration file, and using the pointer address to determine the IOMMU domain bound to the PCIe device; scanning all memory regions of the client machine with the PCIe device to be used, determining the memory address pool region using the marker, and establishing a mapping between the virtual address and physical address of the PCIe device in the memory address pool within the IOMMU domain.

The application provides a signal processing method, device and equipment of a multi-system combining platform, the method comprising: receiving network system signals, the frequency bands of the network system signals being different, and the number of the network system signals being greater than or equal to 3; performing filtering processing on each network system signal in a respective channel to obtain a first processing signal; performing hierarchical coupling on the first processing signals according to a frequency band interval to obtain a second processing signal; wherein n is a positive integer greater than or equal to 2 and less than or equal to 4; performing integrated transmission on the second processing signals according to a preset single set of antenna feeder link to obtain a third processing signal; and transmitting the third processing signal through an antenna of the multi-system combining platform. The scheme can realize high signal isolation while reducing link loss and time delay by performing filtering and channel isolation, hierarchical coupling and integrated transmission on multi-system signals.