10results about How to "Improve pressure distribution" patented technology

The invention discloses a micromotor-driven distributed turbulent flow pumpless liquid cooling device for space thermal control. The micromotor-driven distributed turbulent flow pumpless liquid cooling device comprises a pipeline body and an impeller pump, the impeller pump comprises an impeller with the outer diameter being D and capable of actively rotating. When the impeller pump is used for overall heat dissipation of a single small-size electronic element, one impeller pump is arranged in the cooling flow channel at the position 0.5 D-1. 5D away from the upstream of the small-size electronic element; when the impeller pump is used for eliminating the hot spots of the large-size electronic element, one impeller pump is arranged in the cooling flow channel at the position 0.5 D-1. 5D away from the upstream of each hot spot to be eliminated. An external pump is removed, and the impeller pump is arranged in the cooling flow channel, so that on one hand, a cooling working medium is pumped, on the other hand, a turbulent flow effect is achieved on the cooling working medium, a boundary layer is broken, and the heat dissipation effect is improved. In addition, for a large-scale heat dissipation scene, a plurality of impeller pumps can be arranged in the cooling flow channel in an array mode, the impeller pumps can be placed at local hot spots in a targeted mode, targeted heat dissipation is achieved, and the heat dissipation efficiency and uniformity are further improved.

This application relates to the field of natural gas extraction and transportation technology, and discloses a mixed-transportation booster device for natural gas wells. The device includes an integrated housing with a multi-stage booster assembly inside. The multi-stage booster assembly includes a first booster tank, a second booster tank, and a third booster tank. The outer sides of the first, second, and third booster tanks are all fixedly connected to the inner side of the integrated housing. This mixed-transportation booster device for natural gas wells significantly reduces the device size through the integrated design of the integrated housing and the multi-stage booster assembly, solving the problem of the large size of traditional multi-stage compression equipment. The multi-stage booster assembly, in conjunction with a booster pump, achieves efficient step-by-step boosting. Simultaneously, the gradient contraction design of the gradually narrowing channel significantly improves the gas kinetic energy conversion efficiency. Combined with curved guide vanes, it optimizes the airflow path and reduces energy loss. Finally, a pressure transmitter and electrically controlled valves work together to optimize pressure distribution and achieve precise control.

This invention relates to the field of proton exchange membrane electrolyzers, and discloses a bipolar plate flow channel design for a proton exchange membrane electrolyzer based on honeycomb biomimetic principles. The design includes: an electrolyte inlet, a gas-liquid mixture outlet, a honeycomb biomimetic flow field region, an inlet distribution region, and an outlet collection region. The electrolyte inlet supplies deionized water into the flow channel; the gas-liquid mixture outlet discharges a mixture of electrolyte, hydrogen, and oxygen; the honeycomb biomimetic flow field region is composed of several periodically and closely arranged regular hexagonal flow channel units, covering the effective reaction area on the anode side of the bipolar plate; the electrolyte inlet and the gas-liquid mixture outlet are connected through a connecting channel within the honeycomb biomimetic flow field region. The flow channels of this invention exhibit a more uniform velocity field distribution and a more reasonable pressure field distribution, verifying that they maintain excellent and stable hydrodynamic performance under different operating conditions.

This utility model relates to the field of respiratory therapy equipment technology, and discloses a mask pad, a nasal mask, and an oronasal mask. The mask pad includes a connecting portion, a pressure support portion, a contact support portion, and a facial contact portion arranged sequentially along the wearing direction. The connecting portion, pressure support portion, contact support portion, and facial contact portion constitute a single-layer pad. The contact support portion and the facial contact portion form a curved structure extending inward and bending towards the connecting portion. The pad is a single-layer membrane pad, which can optimize the support structure to relieve facial pressure, avoid the edge-cutting effect, and improve airflow guidance while ensuring a tight seal, thereby improving wearing comfort. This solves the technical problem of existing mask pads having a contradiction between sealing and comfort, and poor adaptability.

The utility model relates to sludge treatment technical field especially is a kind of sludge solidification treatment device, it includes sludge treatment main part and auxiliary adjusting assembly.Sludge treatment main part contains mixing cavity, solid-liquid separation module and solidification agent adding module, auxiliary adjusting assembly includes pressure regulating mechanism and cleaning maintenance mechanism.Solid-liquid separation module uses multiple layers annular filter screen and telescopic pressure plate to optimize pressure distribution, pressure regulating mechanism adjusts pressure dynamically through air bag assembly, and cleaning maintenance mechanism removes residual material using scraper and spraying assembly.The utility model sets up multiple layers annular filter screen and telescopic pressure plate, optimizes the pressure distribution in solid-liquid separation process, avoids the filter screen blockage problem caused by high viscosity sludge, improves dehydration efficiency, and the air bag assembly in pressure regulating mechanism can adjust pressure dynamically according to sludge characteristics, enhances the adaptability of device to different moisture content sludge.

This application discloses a distributed monitoring method and system for internal pressure of deep-sea hoses based on fiber Bragg gratings, relating to the field of intelligent sensor technology. In this method, firstly, the raw reflectance spectrum data of the fiber Bragg grating is acquired, the center wavelength is extracted, and the drift is calculated to obtain a composite wavelength drift sequence. Secondly, a refractive index distortion correction is calculated based on the external environmental pressure to correct the wavelength, and the temperature and external water pressure components are decoupled and removed to obtain the target wavelength drift sequence. Then, a compensation factor is calculated using peak optical power for amplitude compensation to obtain a second wavelength drift sequence. Finally, the wavelength drift sub-sequences of each node are intercepted according to a preset interval, and the internal fluid pressure of each node is calculated using a pre-calibrated pressure sensitivity coefficient, thereby obtaining the distributed monitoring result. Implementing the technical solution provided in this application can improve the accuracy of monitoring the internal fluid pressure of deep-sea hoses.

This invention discloses an endoscope operating device and an endoscope. The operating device includes: a housing having a gripping area for hand gripping and an operating area adjacent to one end of the gripping area; a bending function knob assembly capable of rotating about a rotation axis to bend a bending portion located in an insertion portion; a plurality of function button assemblies connected to the housing and located in the operating area; a support portion protruding from the first surface of the gripping area of ​​the housing, supporting the user's left thumb and index finger when gripping the gripping area, the support portion being closer to the front end of the housing than the bending function knob assembly; and a thumb-base fitting area formed by the continuous transition between the first surface of the gripping area and the adjacent surfaces of the support portion, including an index finger-side support area, a transition area, and a thumb-side covering area arranged sequentially along the gripping direction. By matching the natural curvature of the user's left hand with the thumb-base fitting area, fatigue accumulation can be reduced, and comfort during long-term operation can be improved.

This utility model discloses a shared structure for different eccentricities of an eccentric sleeve in a single-cylinder hydraulic cone crusher, relating to the field of industrial equipment technology. The utility model includes: a sleeve body, cylindrical in shape, with an internal shaft hole whose centerline does not coincide with the centerline of the sleeve body; notches at equal intervals on one end of the outer wall of the sleeve body near the shaft hole; and a connecting hole on the other side of the outer wall of the sleeve body corresponding to the notches; and a cone crusher body, with a connecting cylinder fixed to its bottom, the connecting cylinder being slidably sleeved on the outer surface of the sleeve body. This utility model, by setting multiple sets of equally spaced notches on the outer wall of the sleeve body and embedding locking strips into different notches, allows the equipment to obtain different eccentricities and different crushing strokes. By adjusting the eccentricity, the swing amplitude of the moving cone can be directly controlled, optimizing the pressure distribution in the crushing chamber, reducing over-crushing rate, and improving the uniformity of finished product particle size and production capacity.

The invention relates to the technical field of pump body structures, in particular to a large-diameter gear transmission shaft tubular pump. The device comprises a pump body shell, a main body shell, a drainage shell, a pump head shell, a transmission rod, a layering plate, a sleeving piece, a threaded rod and a guide sliding rail; the pump body shell comprises a main body shell, a drainage shell and a pump head shell, the drainage shell is connected with the main body shell, the pump head shell is connected with the drainage shell, the two ends of the transmission rod extend into the whole pump body shell, and the layering plate is located at the joint of the drainage shell and the main body shell; the bottom end of the threaded rod is in threaded connection with the other end of the sleeving piece, and the guide sliding rail is arranged at one end of the transmission rod; according to the design, the turbine form capable of being axially adjusted is utilized to actively adapt to flow state changes, and then the turbine is adapted to media of different forms.

This invention relates to the field of medical and nursing device technology, and discloses a hammock-type assisted turning bed and a turning method, including a bed frame body. The bed frame body includes multiple functional segments arranged sequentially along its length. Each functional segment is equipped with a bed surface driving mechanism and a support adjustment mechanism. The bed surface driving mechanism includes a roller winding device and a bed surface. Two roller winding devices are symmetrically arranged on both sides of the bed frame body of the functional segment. The two ends of the bed surface are wound around the rollers of the corresponding roller winding devices. The support adjustment mechanism is located below the bed surface and includes multiple electric cylinders arranged along the width direction of the bed frame body. The hammock-type assisted turning bed and turning method provided by this invention solve the problems of high risk of shear friction injury, high risk of pressure sores, poor comfort, and insufficient safety and adaptability in the practical application of existing technologies.