411 results about "Pressure generation" patented technology

The invention discloses a dynamic target pressure generation method based on multi-source pressure characteristics and an energy efficiency curve, and belongs to the technical field of energy-saving control of industrial air compression systems. According to the method, the minimum value, the maximum value, the average value and the mode of tail end pressure are counted, the dynamic range of gas consumption requirements is accurately represented, and the dynamic target pressure is generated. The air compressor energy efficiency curve library is set, the optimal continuous pressure interval is screened instead of single-point optimization, the operation stability and the energy efficiency advantage are considered, finally, the target pressure of each air compressor is distributed through the multi-target optimization algorithm, energy consumption waste caused by pressure overlapping is avoided, and the energy efficiency of the air compressor is improved. The global energy efficiency is optimal, and the problems that due to frequent loading and unloading of the air compressors of an existing air compression station, energy consumption is wasted, the tail end air pressure requirement is lower than the air compressor set value, and the redundancy of the pressure set value is too high when the multiple air compressors operate in parallel are solved.

To study a system that transmutes atomic nuclei using muons, devise a light source device and a propulsion device including a nuclear transmutation system, and examine a centrifugal force application unit which may be accelerated by the propulsion device, and devise an electric field generator or a magnetic field generator.SOLUTION: A system is devised that decelerates cosmic muons produced from cosmic rays or high-speed muons derived from mesons produced from atomic collisions with electric field and deceleration means and uses the muons for nuclear transmutation. Also, a decelerator using a laser wake field and a decelerator using an element forming an electric field are proposed. A radiation light source having the nuclear transmutation unit is disclosed. An ionization device, a centrifugal gun device, a centrifugal force and pressure applying device, a pressure generation unit, a pressure applying material, a high-pressure induction superconductivity experimenting system, a magnetic device, and a magnetic sail are disclosed.SELECTED DRAWING: Figure 18

The invention discloses a pressure sensor zero drift compensation method and system for a high-voltage direct-current converter valve cooling system, and relates to the technical field of monitoring and calibration of high-voltage direct-current transmission equipment. The method comprises the following steps: constructing a multi-factor coupling drift model taking temperature, vibration frequency and electromagnetic interference intensity as inputs; environment parameters and pressure signals are collected in real time, and reference pressure signals are collected regularly; short-term dynamic compensation is realized based on model prediction and reference deviation correction; updating the model through incremental learning according to the drift trend; and real-time monitoring and abnormal early warning are carried out. The system comprises a multi-parameter acquisition unit, a data processing unit, a reference pressure generation unit and a communication unit. According to the method, shutdown calibration is not needed, the compensation precision is improved by 75% or above, the calibration period is prolonged to 12 months, meanwhile, the method has the abnormal diagnosis and standby compensation functions, measurement continuity is guaranteed, compatibility is high, industrial popularization is easy, and the method is particularly suitable for being used in a complex environment.

The invention discloses a movable adsorption machine for waste gas treatment, and belongs to the technical field of waste gas treatment.The movable adsorption machine comprises an outer box body and brake wheels installed at the bottom of the outer box body, a gas inlet pipe is installed at the upper end of the outer box body, a filter plate is arranged below the gas inlet pipe, and a communicating pipe is arranged at the lower end of the filter plate; adsorption columns are inserted into the communicating pipes, the communicating pipes are arranged at the upper ends and the lower ends of the adsorption columns, the communicating pipes at the lower ends of the adsorption columns are connected with negative pressure generation equipment through drainage pipes, an exhaust pipe is installed at the upper end of the negative pressure generation equipment, and a power cam is arranged between the adsorption columns. According to the mobile adsorption machine for waste gas treatment, the filter plate can be cleaned in a manner of electrostatic dust adsorption and reverse blowing, the phenomenon that mesh holes in the filter plate are partially blocked by adopting a brush plate is prevented, meanwhile, harmful substances in waste gas can be adsorbed by arranging activated carbon particles, and the adsorption treatment effect on the waste gas is improved.

The utility model discloses a double-gas-path gas source system and a double-gas-path heart auxiliary system. The double-air-path heart assisting system comprises a pressure generating mechanism which alternately generates positive pressure and negative pressure when working; the first auxiliary device comprises first driven equipment and a first piping pipeline, a pipe body at the farthest end of the first piping pipeline is provided with an inflow channel and an outflow channel, and the first driven equipment is located in the pipe body of the first piping pipeline and corresponds to the outflow channel in position; the second auxiliary device comprises second driven equipment and a second piping pipeline communicated with the second driven equipment; the pressure generating mechanism enables the second driven device to repeatedly expand and contract through the second piping. The detection device is used for acquiring the pressure in the cardiac chamber and the pressure in the aorta; and the control mechanism is used for controlling the pressure generation mechanism to respectively drive the first driven equipment and the second driven equipment according to the corresponding time sequence in a cycle control period according to the pressure signal sent by the detection device.

The invention relates to a cleaning robot system and a base station, and the base station comprises a base which is provided with a cleaning tank and a flushing port; the water supply assembly is communicated to the flushing opening so as to convey water used for cleaning the cleaning robot to the flushing opening; the pollution discharge assembly comprises a sewage tank and a negative pressure generation unit, and the negative pressure generation unit is provided with an air exhaust end for generating negative pressure and an air exhaust end for generating positive pressure; the air exhaust end is communicated with the sewage tank so as to form negative pressure in the sewage tank; the exhaust end is communicated to the flushing opening, positive pressure gas conveyed by the exhaust end flows out of the flushing opening, or the positive pressure gas conveyed by the exhaust end is mixed with water conveyed by the water supply assembly to form a gas-liquid mixture with the pressure larger than the water supply pressure of the water supply assembly, and the gas-liquid mixture flows out of the flushing opening. According to the cleaning robot system and the base station provided by the embodiment of the invention, the flushing water consumption can be reduced, the water adding frequency of the base station is reduced, and the space of the base station is saved.

In order to test a function in a pressure generating module of a hydraulic vehicle power brake system, it is provided to generate a brake pressure using a power brake pressure generator and subsequently hydraulically to separate a pressure regulating module from the pressure generating module by closing connection valves or hydraulically to separate wheel brakes from the pressure generating module by closing inlet valves, so that no brake fluid flows into the wheel brakes during the function test, which would reduce the brake pressure in the pressure generating module and negatively affect or prevent the function test.

The invention is applicable to the field of advanced manufacturing of powder materials, and provides flash sintering equipment for high current and high pressure, which comprises a power supply module, a pressure generation module, a support frame, a high vacuum module, a jacking module, a sintering unit and a conveying module. The sintering unit is provided with a sintering platform, a floating die module and a floating lower punch module and is guided through an upper guide column and a lower guide column. The jacking module jacks the lower electrode through a lead screw to push the floating lower punch module and the floating die module to move upwards along a guide column to be separated from the platform, and floating butt joint is achieved; the pressure generation module drives the upper punch to press downwards through the upper electrode and applies pressure to the sample, and the power supply module applies sintering current at the same time. Through the design of the floating module in non-rigid connection, the pressing force is prevented from being transmitted to the sintering platform, the equipment is prevented from overturning, and the stability of the sintering process is improved; and the whole station switching of the sintering unit is realized in combination with the conveying module, so that the continuous automatic production capacity of the equipment is improved.

Braking system with: a hydraulic brake device for generating a friction braking force comprising a pedal (16), at least one brake caliper (21a - 21d) a main pressure generating device (200) with a main cylinder (212) and a piston (251) which pressurizes the main cylinder (212), a wheel pressure generating device (300) for generating a hydraulic pressure in the at least one brake caliper (21a - 21d); and a regenerative braking device (18) and a brake control device (100) for calculating a braking force distribution between friction brakes and regenerative braking, wherein the braking system is configured to adjust a total braking force (Ft) based on a pedal reaction force and a displacement amount of the piston (251) that pressurizes the master cylinder (212), or adjust the total braking force (Ft) based on the pedal reaction force and the generated hydraulic pressure in the at least one brake caliper (21a - 21d) to keep the total braking force (Ft) at a constant level when transitioning from regenerative braking to friction braking in response to a reduction in vehicle speed.

The invention relates to the field of inorganic chemical industry production, and discloses a high-purity selenium dioxide continuous production process and equipment, the equipment comprises a cooling crystallization barrel, one side of the cooling crystallization barrel is provided with a selenium dioxide production mechanism, the selenium dioxide production mechanism is used for selenium dioxide production, and the cooling crystallization barrel is provided with a cooling crystallization barrel. An air pressure generation mechanism is arranged outside the cooling crystallization barrel, a gas on-off mechanism is arranged at the top of the air pressure generation mechanism, an air exhaust filtering mechanism is arranged at the top of the cooling crystallization barrel, and a tail barrel is arranged on the side, away from the selenium dioxide production mechanism, of the cooling crystallization barrel; the air pressure generating mechanism is used for keeping the negative pressure state in the cooling crystallization barrel and the tail barrel. According to the selenium dioxide production device, the inside of the feeding pipeline is filled with the materials, so that the materials can be supplemented in time after the materials are consumed, and selenium dioxide can be continuously and efficiently produced, so that the yield and the purity are improved, economic benefits are directly brought, energy waste is avoided, and economic loss is avoided.

The present invention relates to a functional shoe configured to generate power when a user wearing the shoe walks, so that a battery there inside can be charged, and to supply the charged electricity to internal and external devices so as to be used for the purpose of user safety and device charging, and enable use of a location tracking function using a GPS device. A self-generating smart shoe according to the present invention comprises: an outsole constituting the lower portion of the shoe while having a plurality of receiving portions formed therein; a self-generation unit which, while being installed at the heel of the outsole, generates power by using a pressure generated when the user wearing the shoe walks and the restoring force due to the pressure; and a battery which, while being installed in the outsole, is charged when the self-generation unit generates power.

A pair of sliding members sliding relative to each other at sliding faces is configured such that at least one of the sliding faces includes a negative pressure generation mechanism separated from a leakage side by a leakage-side land portion and a land portion arranged in the negative pressure generation mechanism. In the compact sliding members, sliding torque can be reduced and a sealing function can be maintained.

A method is presented for determining a likelihood of an ignition hazard. The method comprises receiving a current waveform for a lightning strike event at a conductive member that forms an interface with a decomposable member. Material parameter inputs for the conductive member and the decomposable member are received. Based at least on one or more of the received material parameter inputs and an energy from the current waveform, a heating of the decomposable member is resolved, and a quantity of volatiles within the interface volume are determined. A total pressure generation within the interface volume is determined. A probability of ignition hazard by the lightning strike event is output based on a comparison of the total pressure generation and a containment pressure threshold for the interface volume.

A surgical robot includes an operating section that receives a pressure from a gas, a pressure generating device that generates the pressure, a pressure detector that detects a pressure supplied from the pressure generating device to the operating section, and a control device configured to implement an operation diagnosis device that makes a determination, using the pressure detected by the pressure detector, whether the operating section is operable, and that notifies a result of the determination.

The invention relates to the technical field of industrial circulating water treatment, in particular to a negative pressure driven micro-nano bubble industrial circulating water descaling treatment system which comprises a water quality monitoring module, a negative pressure generation and control module, a micro-nano bubble generation module, an intelligent descaling execution module, a network communication module and a man-machine interaction and visualization module. According to the system, personalized and precise descaling management is realized through multi-source data fusion, water quality prediction, dynamic descaling demand analysis and global optimization strategy generation; and meanwhile, bubble diffusion and self-cleaning functions are integrated, the descaling efficiency and the operation stability are improved, and risk early warning and closed-loop optimization capabilities are achieved. The operation efficiency of the industrial equipment can be remarkably improved, the energy consumption is reduced, and the system reliability and management convenience are enhanced.

The utility model discloses a negative pressure suction device for taking a dislocated intraocular lens. The negative pressure suction device mainly comprises a suction catheter, a catheter seat, a butt joint seat, an extension tube, a negative pressure generation device and a negative pressure control device, wherein the combined structure of the suction catheter and the catheter seat can be realized by directly adopting a 22G venous indwelling needle catheter, the combined structure of the suction catheter and the catheter seat is connected to the extension tube through the butt joint seat, the combined structure of the negative pressure generation device and the negative pressure control device can be realized by directly adopting an ultrasonic emulsification and vitreous body cutting machine and a matched pedal controller, and the extension tube is in butt joint with a negative pressure port of the extension tube. The negative pressure is adjusted through the pedal controller, the intraocular lens dislocated to the vitreous cavity is attracted to the pupil area, and damage to the retina in an operation is avoided. The device has the advantages of simplicity and convenience in operation, controllable negative pressure, small trauma and the like, is suitable for minimally invasive extraction or reduction of a dislocated intraocular lens in clinic, and is wide in adaptability.

Disclosed in the present application are a stylus testing device, a stylus pressure curve testing method and a hover value testing method. The testing device comprises: a motion execution module, the motion execution module being used for being connected to a stylus; and a measurement and control module, the measurement and control module comprising a sensing electrode, a pressure sensor and a control circuit, wherein the sensing electrode is used for sensing a sensing signal sent by the tip of the stylus; the pressure sensor is used for sensing the pressure applied by the tip of the stylus and generating a pressure signal on the basis of the pressure; the control circuit is electrically connected to the sensing electrode and the pressure sensor separately, so as to obtain the sensing signal and the pressure signal; the control circuit is electrically connected to the motion execution module; the control circuit is configured to drive the motion execution module to drive the tip of the stylus to get close to the pressure sensor, and enable the tip of the stylus to apply pressure to the pressure sensor; and the sensing electrode and the pressure sensor are arranged adjacent to each other, so as to sense the sensing signal sent by the stylus while the stylus gets close to the pressure sensor.

Provided is a portable negative pressure suction therapeutic device, comprising: an apparatus housing (1), a micro-vacuum negative pressure suction therapeutic module (2), and a control module (3). A handle (11) is arranged on the top of the apparatus housing (1). The micro-vacuum negative pressure suction therapeutic module (2) comprises a negative pressure generation apparatus (21), a negative pressure mode selection apparatus (22), a water seal bottle (23), a liquid storage bottle (24), and a dressing layer (25). The negative pressure generation apparatus (21), the negative pressure mode selection apparatus (22), the liquid storage bottle (24), and the dressing layer (25) are connected in series, and the water seal bottle (23) and the liquid storage bottle (24) are respectively located on the two sides of the apparatus housing (1). The control module (3) comprises a control board (31) and a pressure sensor (32). The arrangement of the water seal bottle (23) and the liquid storage bottle (24) on the two sides of the apparatus housing (1) facilitates the observation of liquid conditions in the water seal bottle (23) and the liquid storage bottle (24). The connection of the water seal bottle (23) to the negative pressure mode selection apparatus (22) enables precise adjustment of the suction strength of the negative pressure mode selection apparatus (22) using the water seal bottle (23), thus endowing the dressing layer (25) with a stable and precisely controlled low-negative-pressure suction force.

Examples refer to powder feeding systems including a powder feeder connectable to a laser metal deposition equipment, the powder feeder having a feeding hopper to store powder, a first powder outlet through which powder is feed to the laser metal deposition equipment and a first powder inlet, a refilling hopper to store additional powder that includes a second powder outlet connected to the first powder inlet through which the additional powder is provided to the feeding hopper and a pressure generation component to generate an operating pressure level inside the feeding hopper. The system also includes a controller that, during normal operation of the powder feeder and upon reception of a refilling signal, causes the generation of a pressure level inside the refilling hopper substantially equal to the operating pressure level and causes the passage of additional powder from the refilling hopper to the feeding hopper.

The invention discloses compressive strength detection equipment for a pressure regulating valve, and belongs to the technical field of pressure regulating valve detection. Comprising a pressure generation mechanism, a pressure control and adjustment mechanism, a detection table, a pressure sensor group and a data acquisition and processing system, the pressure control and adjustment mechanism is used for controlling the stamping pressure, frequency and stroke of the pressure generation mechanism; a detection cavity is formed in the top of the detection table; the pressure sensor group is arranged at different positions in the detection cavity; a clamping mechanism is arranged in the detection cavity, and the adjusting and positioning assembly is used for adjusting the angle of the positioning body. The pressure distribution condition when the pressure regulating valve is pressed can be comprehensively monitored, the accuracy and reliability of detection data are ensured, and an accurate basis is provided for pressure regulating valve compressive strength evaluation. The adjusting rod is matched with the rack structure and the gear to achieve accurate adjustment of the angle of the positioning body, so that the arc-shaped edges on the two sides of the positioning body can make stable contact with the pressure regulating valve, the fixing stability of the pressure regulating valve is improved, and the stamping resistance of the pressure regulating valve can be accurately detected conveniently.

The present invention relates to a mechanical monitoring sensor for a segment, and an auxiliary mounting device thereof. The sensor comprises a pressure-bearing component and a sensor body. The pressure-bearing component is independent of the sensor body. An arch-shaped shell of the pressure-bearing component deforms under external pressure to extrude a pressure-bearing liquid inside to pass through a first liquid pipe and a second liquid pipe to enter the sensor body so as to push a sensing end of a piston to move. A sensing diaphragm on the sensing end of the piston is in contact with the pressure-bearing liquid, a fixed end of the piston is connected to a steel wire by means of a spring, and the piston converts the pressure received by the sensing diaphragm into a pulling force on the steel wire. The present invention has the advantages such as long service life and high reliability of monitoring data.

The invention provides a vascular occlusion suction system and laser ablation equipment, and belongs to the technical field of medical instruments.The suction system comprises a suction catheter, a collecting device, a negative pressure generating device, a flow sensing device and a control device.The first end of the suction catheter acts on the application position of a target object; an inlet of the collecting device is communicated with the second end of the suction catheter to form a first channel of the suction channel, the negative pressure generating device is communicated with an outlet of the collecting device to form a second channel of the suction channel, the flow sensing device is used for monitoring the real-time flow of the suction channel, and the control device is configured to respond to gear selection operation. The initial suction gear is determined, the negative pressure generation device is controlled to work at the initial suction gear, and the gear adjustment prompt instruction is output according to the real-time flow, so that an operator can conveniently carry out gear adjustment on the negative pressure generation device subsequently or directly carry out automatic gear adjustment on the negative pressure generation device; and the capacity of intelligently adjusting the suction negative pressure of the suction system is effectively improved.

The utility model relates to the technical field of medical instruments, and particularly discloses a negative pressure machine which comprises a water-gas separator and two negative pressure generation containers. Air inlets of the two negative pressure generation containers are connected with branch air inlet assemblies respectively, and the two branch air inlet assemblies are jointly connected with a main air inlet assembly. A pressure regulating assembly is arranged on the main path air inlet assembly; water inlets of the two negative pressure generation containers are connected with branch water inlet assemblies respectively, and the two branch water inlet assemblies are jointly connected with a main water inlet assembly; the negative pressure machine comprises two negative pressure generation containers, discharge ports of the two negative pressure generation containers are connected with branch discharge assemblies respectively, the two branch discharge assemblies are jointly connected with a main discharge assembly, and the main discharge assembly is connected with an inlet of a water-gas separator. And in addition, the pressure adjusting assembly is further arranged to adjust the air pressure, so that the stability of the air pressure is guaranteed, and high practicability is achieved.

The application is suitable for the field of advanced manufacturing of powder materials, and provides a flash sintering equipment for large current and large pressure, which comprises a power supply module, a pressure generation module, a support frame, a high vacuum module, a jacking module, a sintering unit and a conveying module. The sintering unit is provided with a sintering platform, a floating mold module and a floating lower punch module, and is guided by upper and lower guide columns; the jacking module jacks up the lower electrode through a lead screw, pushes the floating lower punch module and the floating mold module to move upwards along the guide column to separate from the platform, and realizes floating butt joint; the pressure generation module drives the upper punch to press downwards through the upper electrode and applies pressure to the sample, and the power supply module simultaneously applies sintering current. Through the design of the floating mold module connected in a non-rigid manner, the application avoids the transmission of the pressing force to the sintering platform, prevents the equipment from overturning, and improves the stability of the sintering process; and the combination of the conveying module realizes the overall station switching of the sintering unit, and improves the continuous automatic production capacity of the equipment.

A gate valve according to the present invention is configured to partition a flow path. The gate valve has a valve box, a valve body, a rotary shaft, a rotation drive unit, a pressing drive unit, a driving pressure generation mechanism, and an energy regeneration mechanism. The rotation drive unit is capable of rotationally driving the valve body. The pressing drive unit is provided in the valve box. The pressing drive unit moves the valve body, in a direction along the flow path, from a valve-opening covering position to a valve closing position at which the valve body contacts the peripheral edge portion, and presses the valve body. The driving pressure generation mechanism is connected to the pressing drive unit and is capable of causing the pressing drive unit to expand and contract. The energy regeneration mechanism regenerates drive energy for valve operation.

The invention discloses a double-layer optical waveguide coupling type pressure sensor, which comprises a detection optical signal generation module, a pressure sensing unit and a detection signal processing module, and is characterized in that the detection optical signal generation module and the detection signal processing module are connected with the pressure sensing unit through optical fibers; the pressure sensing unit mainly comprises two layers of flat plates containing optical waveguides, and air or low-loss transparent liquid with a certain thickness clamped between the flat plates to form a pressure sensing structure, when the upper-layer waveguide deforms due to external pressure, the distance between the upper-layer waveguide and the lower-layer waveguide and the coupling efficiency are changed, the output optical power of each optical waveguide is changed, and the output optical power of each optical waveguide is changed. Therefore, the pressure on the chip can be detected. According to the invention, high-precision sensing can be realized, and compared with a traditional electric pressure detection method, the method has the advantages of resisting electromagnetic interference, supporting sensing and transmission integration and high-speed dynamic sensing, and being suitable for dangerous occasions such as a complex electromagnetic environment and the like; compared with a wavelength resolution type optical pressure sensor, the optical pressure sensor has the advantages of wide spectrum, simple preparation process and high cost performance.

Described herein is a respiratory care apparatus capable of performing multitude of therapy for secretion management and breath assistance therapy. The respiratory care apparatus comprises an electromechanical air router assembly (EARA) and an interfacing assembly. The EARA includes independent first and second pressure generating sources for assisted inhalation / insufflation and assisted exhalation / exsufflation process. The interfacing assembly includes a patient interface port and a patient interface tube. The interfacing assembly forms two pneumatically separate paths. The respiratory care apparatus is configured to generate alternate positive and negative pressure at the patient interface port for assisted inhalation / insufflation and assisted exhalation / exsufflation processes respectively. The assisted inhalation / insufflation and assisted exhalation / exsufflation processes are carried out independently through separate conduits / passages to reduce contamination and infection. Further, the respiratory care apparatus comprises a garment which oscillates due to alternate positive and negative pressure generation and provides therapy to the patient.

The application provides a piling device, which comprises a water hammer bin, a pressure generating assembly and a gas generator replacing device, the pressure generating assembly comprises a pressure chamber, a gas guide structure and a gas generator, the gas guide structure is fixed to the side wall of the pressure chamber and communicates with the pressure chamber, the gas generator comprises a plurality of components for loading gas generating agent, the gas generator replacing device comprises a gas generating agent conveyor and a mechanical arm, wherein the gas generating agent conveyor is used for conveying the components loaded with the gas generating agent from one side close to the workboat end to one side close to the mechanical arm, and conveying the components in a second use state from one side close to the mechanical arm to one side close to the workboat end, and the mechanical arm is used for fixedly connecting the components in a first use state with the gas guide structure, and transferring the components in the second use state from the gas guide structure to the gas generating agent conveyor; the piling device provided by the application can realize automatic installation or dismounting of the gas generator.

A substrate processing device according to the present invention includes a holding unit having, on a suction surface for suctioning a substrate, a circular central region and an annular outer region arranged outside the central region. A plurality of zones are set on the suction surface, the plurality of zones being in the central region and in regions obtained by dividing the outer region in the circumferential direction. The substrate processing device includes a pressure generation unit which generates pressure in each of the plurality of zones. In a state in which the substrate is mounted on the suction surface and in which negative pressure is applied to at least one of the plurality of zones, the pressure generation unit applies positive pressure to at least one of the plurality of zones to which negative pressure is not applied.

There is used a liquid ejection head including: a plurality of nozzles for ejecting liquid; a plurality of pressure chambers corresponding to the plurality of nozzles; a plurality of pressure generating elements arranged in the plurality of pressure chambers, and for generating a pressure for ejection; a plurality of first flow passages corresponding to the plurality of pressure chambers; a second flow passage communicating with the plurality of first flow passages, and common to the plurality of pressure chambers; and a damper that is elastically deformed when a pressure of the liquid is increased by the pressure generating element. The liquid is supplied to each of the plurality of pressure chambers from the common second flow passage via the plurality of first flow passages, and a Young's modulus of the second flow passage member configuring the second flow passage is 65 GPa or less.