15results about How to "Eliminate use" patented technology

This invention relates to the field of electrochemical sensors, specifically a method, apparatus, and application for converting ion-selective electrode potential signals into current signals using a single electrolytic cell. The method involves applying a constant voltage between the working electrode and the ion-selective electrode in a single electrolytic cell, converting the ion-selective electrode potential signal caused by changes in ion activity into a working electrode current signal with an embedded redox probe. This enables quantitative detection of the activity of the analyte ion using a current signal within a single electrolytic cell. This invention proposes the concept of embedding a redox probe, achieving the conversion of ion-selective electrode potential signals into current signals without distinguishing between the analyte background solution and the signal detection background solution. This overcomes the shortcomings of existing methods that require two electrolytic cells (detection and signal regions) and a salt bridge, resulting in a simpler apparatus.

The utility model provides a novel pump group shell structure, including pump body shell, the pump body shell is rubbed and is welded with lower bearing seat, the upper bearing seat is provided with in the upper bearing seat, the lower bearing seat and the upper bearing seat are outside interference and are equipped with the base, the top of base is connected with the top cover thread. Friction welding is fused as one, fundamentally eliminates the use of screw, friction welding need not open threaded hole, eliminates the potential leak path of threaded hole, thereby improves the sealing performance. The screw hole is the typical stress concentration point, is easy to produce crack under the alternating load, cancels the screw hole, and the structure is more continuous, and the stress distribution is more reasonable, improves the pressure -resisting capacity and the service life.

The present invention relates to a foaming unit for foaming milk or a milk / air mixture, the foaming unit having a steam supply line, a milk supply line, a mixing unit having a first flow region and a second flow region, and an outlet line having an outlet opening for milk foam, the outlet line being connected to the second flow region.

An expandable acoustic reinforcement member and a manufacturing method therefor and the use thereof. When one or more expansion trigger conditions are applied, an apparent volume of the expandable acoustic reinforcement member is increased, and an internal pore volume is increased. The expandable acoustic reinforcement member is applied to a loudspeaker, and an expansion trigger treatment is performed on the expandable acoustic reinforcement member, so that the apparent volume of the expandable acoustic reinforcement member is increased, and the internal pore volume is increased, such that the acoustic performance of the loudspeaker assembled with the expandable acoustic reinforcement member is improved; meanwhile, pressing is performed between the expandable acoustic reinforcement members, and between the expandable acoustic reinforcement member and a cavity wall of a specific space of the loudspeaker, so that the expandable acoustic reinforcement member is fixed, thereby achieving the effects of eliminating noise in the use process of the loudspeaker and preventing collisions and crushing of the acoustic reinforcement member to generate falling powder, and prolonging the service life of the acoustic reinforcement member.

Method of measuring bending of a nuclear reactor fuel channel. According to the method a fiber-optic sensor is equipped with a gravity pendulum that is suspended for angular motion at the lower end of the fibre-optic sensor; a flexible hollow carrier rod with the fibre-optic sensor is passed along the central tube of a fuel assembly and using a photoreceiver and a computer the shift of an interference pattern of a reflected light signal in a gas gap between the upper end face of the gravity pendulum and the lower end face of fibre-optic lines connected to the photoreceiver and fastened to the sensor is registered, said gas gap varying during the passage of the fibre-optic sensor as a result of the angular motion of the gravity pendulum away from the axis of the bowed central tube of the fuel assembly. On the basis of the registered shifts of the interference pattern of the reflected light signal, profilograms of the variations of the gas gap for each fibre-optic line of each fibre-optic sensor are recorded; and on the basis of the obtained gas gap profilograms, the magnitude and direction of bending of the central tube of the fuel assembly from the vertical axis are calculated, according to which the presence and magnitude of bending of the nuclear reactor fuel channel are determined.

The application discloses a high-anti-crack self-repairing fly ash geopolymer fireproof coating and a preparation method and application thereof, and belongs to the technical field of fireproof materials, and comprises the following raw materials in parts by weight: geopolymer powder 70-80 parts, active expansion component 3-6 parts, high-temperature self-repairing component 2-5 parts, heat insulation filler 10-25 parts, rheological modifier 1-2 parts and water 45 parts. The application selects fly ash geopolymer as the matrix of the fireproof coating, the fly ash geopolymer has excellent fireproof performance, meanwhile, the microcrystalline toughening effect of superfine fly ash is used, the use of fibers can be avoided, the adverse influence of the fibers on the interfacial adhesion is avoided, the green low-carbonization and long service life of the steel structure fireproof protective coating can be realized, and the sustainable development of industrial solid waste resource utilization and building fireproof materials is promoted.

The utility model relates to the field of automobile sensor, concretely relates to a built -in sensor of automobile tail door electric support rod, including code disc, fixed connection is in the motor shaft of electric cylinder or the input shaft of speed reducer and rotates with it, photoelectric sensor contains light emitting element and light receiving element, the code disc includes the bottom plate and the even number of protrusions established on the bottom plate, the protrusions are uniformly distributed on the same circumference, and form the code way between the four protrusions of adjacent two diameter directions, the moving path of protrusion is located between light emitting element and light receiving element, generates pulse signal through the obstruction / transmission light path, in the application scene such as electric tail door requiring low -speed smooth operation and high -precision position control, can guarantee control precision and stability.

The invention belongs to the field of flexible battery energy storage, and relates to a flexible self-supporting material and a preparation method and application thereof. The flexible self-supporting material comprises a carbon nanotube film, a Si / Ge film and a liquid metal film which are arranged in sequence. According to the invention, the carbon nanotube film is used as a flexible carrier, has good flexibility, mechanical property, conductivity and ultra-light weight, can greatly reduce the proportion of inactive substances in the electrode, and improves the energy density of the electrode material. Meanwhile, Si is easy to fall off from the traditional current collector Cu to cause damage to the electrode structure, and the carbon nanotube film well improves the defect and improves the stability of the electrode material.

The utility model discloses a single edge axle outer rotor wheel hub motor light weight motor box belongs to motor box technical field. The utility model discloses through optimizing motor box structure design and processing technology, realizes the light weight of motor box and the strength promotion. Specifically, the utility model will motor magnetism steel ring, aluminium package magnetism ring and motor box body are integrally formed through die casting or casting process. Among them, motor magnetism steel ring adopts the L type structure of precision machining, local optimization thickness, to satisfy magnetism demand and reduce weight, simultaneously, adopts local thickening design at the connecting part of motor box and motor end cover, has promoted the connecting strength and structural stability. The utility model discloses through the integration manufacturing, has reduced the assembly link, has improved production efficiency and product consistency, has effectively solved the problem that traditional wheel hub motor box is heavy, and the connecting strength is insufficient.

The invention relates to measuring technology and can be used to implement a method for measuring bending of extended vertically directed channels. A fibre-optic sensor fixed at the end of a flexible hollow carrier rod is placed inside the extended vertically directed channel. A light signal is supplied via fibre-optic lines connected to the sensor, and reflected light signals are recorded. The fibre-optic sensor is equipped with a gravity pendulum. The flexible hollow carrier rod with the fibre-optic sensor is placed along the channel and using a photoreceiver and a computer to register the shift of an interference pattern of a reflected light signal in a gas gap between the upper end face of the gravity pendulum and the lower end face of fibre-optic lines connected to the photoreceiver and fastened to the sensor, said gas gap varying during the passage of the fibre-optic sensor as a result of the angular motion of the gravity pendulum away from the axis of the bowed channel. On the basis of the registered shifts, profilograms of the variations of the gas gap for each fibre-optic line are recorded; and on the basis of the obtained gas gap profilograms, the magnitude and direction of bending of the channel from the vertical axis are calculated to simplify measurements of bending of a vertically directed channel while maintaining measurement accuracy.

The utility model discloses a battery pack for isolating a charge-discharge high-voltage loop, and relates to the field of battery packs. The battery pack capable of isolating the charging and discharging high-voltage loop comprises a box body, battery cell modules, a first high-voltage circuit, a second high-voltage circuit, a discharging interface and a charging interface, a cavity is formed in the box body, and the multiple battery cell modules are selectively arranged in the cavity; the first high-voltage circuit and the second high-voltage circuit are electrically connected to the two sides of the multiple battery cell modules respectively, and the discharging interface and the charging interface are embedded in the two sides of the box body respectively. According to the battery pack for isolating the charge-discharge high-voltage loop, the discharge interface and the charge interface are respectively arranged at the two sides of the battery pack, so that the physical isolation of the charge-discharge high-voltage loop is realized, and the wiring complexity and potential short-circuit risk caused by the fact that the interfaces are arranged at the same side in the traditional design are avoided. And through the separated high-voltage circuit, the use of a long busbar is eliminated, and the safety of the battery pack is remarkably improved.

The application discloses a downhole power cutting device for a drill pipe in a coring accident, which comprises a downhole power cutting device body and an auxiliary device, wherein the downhole power cutting device body comprises a base, a bearing sleeve, a hydraulic cutter device, a screw motor, a bypass valve, a bearing seat, a single-acting water sealing assembly, a weight and a spear head, and the auxiliary device comprises a lifting and fishing winch, a steel wire rope, a drilling machine and a mud pump; the application can achieve the following effects: simple, quick, convenient, safe and reliable operation, fast and effective solution to the drill pipe cutting in a coring accident, limitation of the influence of the drill pipe cutting in the coring accident within a controllable range, reduction of manpower, material resources and time cost, improvement of the success probability of complex accident treatment, improvement of the drilling construction efficiency and reduction of the probability of abandonment of a drilling hole due to failure of complex accident treatment.

The present disclosure provides an in-slot cooling channel for an electric machine. A cooling manifold (112, 800) for an electric machine (14, 100) is presented that utilizes a hollow bolt (110) feed solution that utilizes an existing bolt structure and an interface with a housing (201) of the electric machine to form a fluid passage for directing coolant to an interior portion of a stator of the electric machine (14, 100). The hollow bolt (110) forms a sealed fluid interface without the need to add additional seals, thereby reducing the manufacturing complexity of the motor (14, 100). In-slot cooling with a manifold (112, 800) or with a plurality of said manifolds can eliminate the dependence on slot liners and varnishes for limiting relative movement of end windings of the stator and providing electrical isolation while also cooling the hottest portion of the electric machine (14, 100), significantly affecting the thermal confinement capability of the electric machine.

This invention discloses a method for preparing biomass hard carbon anode materials without acid washing, comprising the following steps: using pure water as a solvent, placing biomass particles in a Soxhlet extractor, continuously circulating and extracting the biomass particles under reflux conditions for 2-5 hours; after extraction, removing the solid and drying it to obtain water-extracted purified biomass; heating the obtained water-extracted purified biomass to 300-550°C at a heating rate of 2-10°C / min, holding it at this temperature for 2-5 hours, then naturally cooling it to room temperature, and then washing and drying it with pure water; heating the obtained pre-oxidized carbonized product to 1100-1550°C at a heating rate of 2-10°C / min, holding it at this temperature for 3-6 hours, and then naturally cooling it to room temperature; washing the obtained carbonized product with pure water until the filtrate is neutral, and then drying it. Compared with the prior art, this method solves the problems of serious wastewater pollution, significant safety hazards, high costs, long production cycles, and the easy introduction of oxygen-containing defects that damage electrochemical performance.

This utility model discloses an adjustment structure for a power transformer lead support, belonging to the field of transformer equipment. A first lead support is positioned relative to one end of a third lead support via a first set of adjustment components, and a second lead support is positioned relative to the other end of the third lead support via a second set of adjustment components. A third set of adjustment components is positioned on the side of the third lead support closer to the first lead support, and a fourth set of adjustment components is positioned on the side of the third lead support closer to the second lead support. The first and third sets of adjustment components are positioned opposite each other, as are the second and fourth sets. A first connecting member is provided between the first and third sets of adjustment components, penetrating both sets. A second connecting member is provided between the second and fourth sets of adjustment components, also penetrating both sets.