79 results about "Ambient pressure" patented technology

The present disclosure provides a vertical furnace. The vertical furnace comprises a furnace tube, a storage device, a loading device, a wafer boat, a first carrying device, a second carrying device and a gas system. A furnace chamber used for heating a wafer is arranged in the furnace tube. The storage device is provided with a storage chamber and a carrying table located in the storage chamber, and the carrying table is used for carrying a wafer box. The loading device is used for loading a wafer box for storing a wafer to be heated. The wafer boat is used for moving a wafer to be heated between the furnace chamber and the loading device. The first carrying device is used for moving the wafer box between the carrying table and the loading device. And the second carrying device is used for moving the to-be-heated wafer between the loading device and the wafer boat. And the gas system comprises a gas inlet port and a gas outlet port which are arranged on the carrying table, and is used for introducing protective gas into the wafer box through the gas inlet port and discharging the gas from the wafer box through the gas outlet port so as to inject the protective gas of which the pressure is greater than the environmental pressure into the wafer box. Consequently, pollutants in the environment can be prevented from making contact with the wafer, and the interior of the wafer box is clean.

Described herein is a safety and support system for a fuel cell module comprising: a pressure-tight safety casing for enclosing the fuel cell module and for containing a fluid; a fuel supply system, arranged to transport fuel to the fuel cell module from an external source; an air supply system, arranged to transport air to the fuel cell module from an external source, an exhaust system, arranged to transport exhaust fluids from the fuel cell module out of the safety casing, and a casing atmosphere system comprising: an inlet into the safety casing having an inlet valve, an outlet from the safety casing having an outlet valve, means for evacuating the fluid from the safety casing through the outlet, and a pressure sensor, arranged for measuring a pressure of the fluid inside the safety casing, wherein the casing atmosphere system is arranged to maintain a below ambient pressure inside the safety casing. Also described herein is a method for preventing an explosive atmosphere inside a safety casing and a fuel cell system for marine applications.

The present application relates to hydrogen leakage intelligent early warning technical field, a kind of intelligent early warning method and system based on hydrogen leakage dangerous degree in industrial production, method includes: in hydrogen leakage historical data set sequentially extracting hydrogen leakage historical data, using interval leakage concentration difference, leakage ambient temperature, leakage ambient humidity, leakage ambient pressure and target leakage concentration to train initial BP neural network, obtain target BP neural network, judge whether current hydrogen concentration is greater than first leakage concentration, if greater than, according to first leakage concentration and second leakage concentration calculate current leakage concentration difference, current leakage concentration difference, current ambient temperature, current ambient humidity and current ambient pressure are input into target BP neural network, obtain predicted leakage concentration, judge whether predicted leakage concentration is greater than early warning leakage concentration, if greater than, hydrogen leakage intelligent early warning is carried out.The present application can solve the problem that the monitoring precision is low and the monitoring effect is poor in the current hydrogen concentration monitoring.

The invention discloses a method and system for analyzing factors influencing radial expansion of flash jet flow of an oil injector, and relates to the field of oil injectors. Flash evaporation spraying images of the single-hole oil sprayer under different thermal working conditions are collected; the thermal working condition comprises injection temperature and environment pressure; obtaining a spraying width within a preset axial distance from a nozzle outlet according to the flash evaporation spraying image; establishing a nucleation rate model according to the injection temperature and the environment pressure; determining a nucleation rate index according to the nucleation rate model; taking the spray width as a measurement index of radial expansion, and establishing an incidence relation between the spray width and a nucleation rate index; according to the incidence relation, determining a factor influencing radial expansion: when the spray width is increased along with the increase of the nucleation rate index, the influence factor is the nucleation rate; when the spray width tends to be stable along with the increase of the nucleation rate index, the influence factor is heat energy required by vaporization.

A method and apparatus for performing post-exposure bake operations is described herein. After exposure of photoresist on a substrate, the substrate is heated during a baking process to facilitate protection of the resist. The baking process is performed in a vacuum environment at sub-atmospheric pressures. After baking at reduced pressure, the substrate is cooled. The cooling process is performed at sub-atmospheric pressures. Further development of the resist is performed at ambient pressures.

The invention relates to a pressure sensor (10) for measuring ambient pressure, comprising a first pressure measuring element (12) with a first cavity (16) and at least one first deflection element (20) spanning at least section by section over the first cavity (16) and deflectable in a normal direction (18) depending on the ambient pressure, a second pressure measuring element (14) with a second cavity (44) and at least one second deflection element (46) spanning at least section by section over the second cavity (44) and deflectable in the normal direction (18) depending on the ambient pressure, wherein the second deflection element (46) comprises the first pressure measuring element (12) and a peripheral deflection region (48) adjacent to the first pressure measuring element (12), wherein the second cavity (44) overlaps the first cavity (16) at least section by section with respect to the normal direction (18),wherein the first deflection element (20) has a smaller material thickness than the edge-side deflection area (48).

The embodiment of the invention provides a speed reducer used for underground driving and an underground tool assembly. The speed reducer comprises an input shaft, an output shaft and an output shaft, an output shaft; a gear train disposed between the input shaft and the output shaft and providing a first power transmission path having a first gear ratio and a second power transmission path having a second gear ratio greater than the first gear ratio; a pressure sensing part of the pressure driving assembly is exposed in the underground environment outside the speed reducer to sense the environment pressure, and the pressure driving assembly is configured to drive the speed reducer to rotate by means of force generated by the environment pressure when the environment pressure exceeds a preset pressure threshold value. The gear train is automatically switched from operating through the first power transmission path to operating through the second power transmission path.

A safety negative pressure gas supply cylinder according to the present invention comprises a cylinder body, a pipeline structure, a first check valve, a second check valve, and an adsorbent. The cylinder body has an opening, and the space inside is used to store gas, and the gas forms a pressure lower than atmospheric pressure inside the cylinder body. The pipeline structure is disposed inside the cylinder body and communicates with the opening, and includes a first pipeline and a second pipeline. The first check valve is disposed in the first pipeline and has a first check valve opening pressure greater than atmospheric pressure. When the pressure of the external filling gas is greater than the opening pressure of the first check valve and the internal pressure, the external filling gas enters the cylinder body. The second check valve is disposed in the second pipeline and has a second check valve opening pressure. When the pressure of the gas inside the cylinder is greater than or equal to the opening pressure of the second check valve and the external ambient pressure, the stored gas flows out of the cylinder body. The adsorbent adsorbs and stores the gas.

The invention relates to a method and a device (1) for in-situ determination of the tempering state of surfaces (3, 4, 5), wherein the degree of change of at least one surface (3, 4, 5) over time is determined under an applied electric field, and wherein the electric field between at least two surfaces (3, 4, 5) is regulated or controlled, and wherein the surfaces (3, 4, 5) are arranged in a common, gas-tight housing (2), with a gas pressure in the housing (2) lower than the ambient pressure of the housing (2). The determination of the tempering state takes place during the tempering process, and the tempering process is regulated or controlled and / or terminated according to the determined tempering state.

The invention relates to a method and a device (1) for processing surfaces (3, 4, 5), wherein an electric field is applied between at least two surfaces (3, 4, 5) in a common gas-tight housing (2), at a gas pressure inside the housing (2) which is lower than the ambient pressure around the housing (2). The energy from the electric field supplied to each of the surfaces (3, 4, 5) is closed-loop or open-loop controlled.

The invention relates to a method for adsorption and desorption of carbon dioxide from gas streams, with heat recovery, comprising at least two chambers (12, 14) alternately configured for adsorption and desorption, containing an adsorption material (1), wherein for desorption the chamber (12, 14) is operated at a reduced pressure and a temperature higher than the ambient temperature, and for adsorption at a pressure higher than the ambient pressure and a temperature lower than the ambient temperature.

The invention provides a fuel injection quantity control method and device, a storage medium and electronic equipment. Vehicle operation information and a correction value of the fuel injection quantity of a fuel injector are obtained, and the vehicle operation information comprises the environment temperature, the environment pressure and the air inlet pressure; the correction value of the fuel injection quantity comprises a correction value of the fuel injection quantity in a first temperature range, a correction value of the fuel injection quantity in a second temperature range and a correction value of the fuel injection quantity in a first altitude range; under the condition that the air inlet pressure is larger than the air inlet pressure target value, if the air inlet pressure is larger than the air inlet pressure threshold value, the oil injection quantity of an oil injector is reduced to be within the preset range matched with the engine design power; and if the air inlet pressure is smaller than or equal to the air inlet pressure threshold value, the oil injection amount is adjusted to be within the corresponding range based on the environment pressure and the environment temperature, and the corresponding range is determined based on the corrected value of the oil injection amount. According to the scheme, the problem that it is difficult to guarantee that the engine power is within the design boundary range through the control strategy of the fuel injector fuel injection quantity is solved.

This invention discloses a deep learning-based adaptive compensation method for temperature and pressure in an electrochemical oxygen sensor, relating to the field of oxygen content detection technology. The method includes the following steps: constructing a sealed test space and simultaneously conducting random oxygen content tests within the sealed test space, recording the oxygen content test data; analyzing the temperature offset relationship between the ambient temperature and the sensor temperature based on the oxygen content test data; analyzing the pressure offset relationship between the ambient pressure and the sensor temperature based on the oxygen content test data; analyzing the primary and secondary offset relationships based on the temperature and pressure offset relationships; and adaptively compensating the sensor temperature based on the primary and secondary offset relationships. This invention addresses the problem that existing oxygen content detection technologies using electrochemical oxygen sensors cannot eliminate reading deviations under different temperature and pressure environments, resulting in inaccurate oxygen content measurements.

The application discloses a kind of intercooler fault control method, device, equipment and medium, comprising: according to the current driving road information of vehicle and driving demand power information determines intercooler control level;According to intercooler control level determines battery valve opening parameter;According to the comparison result of intercooler temperature and ambient temperature with preset temperature respectively, the comparison result of intercooler humidity and ambient humidity with preset humidity respectively, and the comparison result of intercooler pressure and ambient pressure with preset pressure respectively, determine intercooler control information.The method can determine the control level of intercooler according to the current vehicle driving information, can timely and accurately find the abnormality of intercooler pressure, humidity, temperature and take measures, ECU enters idle condition, reduces engine injection amount, avoids excessive injection to cause catalytic converter burnout and catalytic converter abnormal high temperature radiation causes vehicle spontaneous combustion and intercooler filter element leakage will lead to the risk of water flow into cylinder damage engine.

The application relates to the technical field of pumped storage technology, and discloses a correction method for calculating the suction height of a pumped storage power station in a high-altitude area, which comprises the following steps: obtaining test materials in the power station, a preset ambient temperature, an actual ambient temperature and a preset ambient pressure; based on the preset ambient temperature and the preset ambient pressure, a first test group is divided, and based on the actual ambient temperature and the preset ambient pressure, a second test group is divided; cavitation is generated near the test materials, a first function relationship of the test materials under the first test group and a second function relationship of the test materials under the second test group are obtained; for each second test group, based on the second function relationship of the second test group and the first function relationship of the first test group corresponding to the second test group, the environmental pressure change amount of each second test group is determined; and based on the environmental pressure change amounts of the multiple second test groups, a temperature correction term is determined to correct the calculation of the suction height. According to the application, the suction height can be accurately obtained, and the cavitation safety margin of the unit is reduced.

The invention relates to a capacitive pressure sensor (10) for capacitively measuring an ambient pressure in a sensor environment (22), comprising a sensor unit (12) with an electrical bridge circuit (18) to which an electrical first input potential (D1) and an electrical second input potential (D2) are applied and from which at least one electrical output potential (S) can be tapped off and which has at least one first measurement capacitance (M1), which can be changed depending on the ambient pressure, between a first electrode (24) and a first counter electrode (26), at least one first reference capacitance (R1), which cannot be changed with respect to the ambient pressure, between a first reference electrode (28) and a first reference counter electrode (30), a first input connection (34) which is at the first input potential (D1), a second input connection (36) which is at the second input potential (D2) and an output connection (38) which is at the output potential (S), the bridge circuit (18) being of symmetrical design at least with respect to a surface of the sensor unit (12) about an axis of symmetry (46) running through the output connection (38).

The invention provides a system and a method for realizing performance test conditions of a hydrogenation machine. The system comprises an explosion-proof cabin; and the main control unit controls the refrigeration regulation and control valve to regulate the environment temperature in the explosion-proof cabin body. And the main control unit controls the heating regulation and control valve to regulate the environment temperature in the explosion-proof cabin body. And the main control unit controls the pressure regulation and control valve to change the gas quantity and speed of the inert gas entering the explosion-proof cabin body so as to change the pressure environment in the explosion-proof cabin body. And the main control unit forms a control signal according to monitoring results of the sensors and the environment monitoring unit, and controls the hydrogen concentration, the environment pressure and the environment temperature in the explosion-proof cabin body to be respectively kept in corresponding preset ranges, so as to ensure that the testing environment not only meets the national standard requirement, but also ensures the safety.

A sealing element for a high-pressure connection, including a first portion and a second portion. The first portion is configured to dispose the sealing element in a clearance. A first side of the first portion is disposed so as to be substantially orthogonal to a second side of the second portion. The second portion has a third side, and the second portion is configured to press the third side onto a gap to be sealed when an increased ambient pressure acts on the second side.

The invention relates to a method and a device (1) for processing surfaces (3, 4, 5), wherein an electric field is applied between at least two surfaces (3, 4, 5) in a common, gas-tight housing (2), with a gas pressure in the housing (2) lower than the ambient pressure of the housing (2). The energy of the electric field supplied to each of the surfaces (3, 4, 5) is regulated or controlled.

Housing (2), with a venting device (10) arranged on the housing (2), which allows the supply of ambient pressure to the interior of the housing (2), wherein the venting device (10) is formed from a sleeve-like protective cap (11) with lateral openings (12) and a liquid-repellent membrane, wherein inside the venting device (10) a cavity is formed to receive the membrane and the membrane is arranged such that an opening in the wall of the housing (2) provided for the pressure supply is covered, characterized by that the sleeve-like protective cap (11) has a narrow, circumferential widening (14) in the area of ​​its side surface, so that a defined drip edge is formed.

Pressure equalization device comprising a retaining part (1) with a gas passage opening (2) and a membrane (3) made of a rubber-elastic material, wherein the membrane (3) is held on the retaining part (1) and covers the gas passage opening (2), wherein the membrane (3) is subjected on one side to ambient pressure (4) and on the other side to pressure to be equalized (5), wherein the membrane (3) has a metastable first state (6) and a stable second state (7) depending on the differential pressure, and wherein the membrane (3) can be snapped from a retaining position (8), in which it seals over the gas passage opening (2), is metastable and is sealed to the retaining part (1), into an opening position (9), in which it is stable and detached from the retaining part (1) and releases the gas passage opening (2).

The invention discloses a rapid water sample detection method based on color reaction, which mainly comprises the following steps: acquiring a water sample, adding a second reagent into the water sample, and dispersing the second reagent into the water sample to form a to-be-detected substance; subsequently, through a pressure difference principle, forming a difference value between the test tube and the ambient air pressure, based on the air pressure difference value, enabling the to-be-tested object to enter the test tube to form a mixture, vibrating the mixture, and standing for a preset time to obtain a comparison sample; result generation: comparing the comparison sample with the color item of the colorimetric card, and matching and outputting a unique detection result through the color item; by utilizing the characteristics of color reaction, the output result of water sample detection can be very intuitive; in a further effect, the water sample to be detected can be quickly prepared into a mixture based on the pressure difference without assistance of other equipment, so that the steps of water sample detection are greatly simplified, and the method is more accordant with the existing operation, so that a preliminary detection result is quickly obtained, and a technician can make a corresponding decision conveniently.

An underwater LED light for use in high ambient pressure environments having a housing, a transparent pressure-bearing window, an MCPCB having one or more LEDS, and a multilayer stack of spacers for carrying loads applied to the window to the MCPCB and to the housing.

A storage shed for storing items such as grain, equipment, implements and / or machinery, the storage shed including: a floor; one or more spaced apart walls mounted on the floor; a roof; wherein the walls and roof and floor provide a storage volume and are sealed together to inhibit ingress of vermin and to maintain a selected ambient pressure inside the storage volume, and a pressure relief valve operatively connected to the floor, roof or wall to relieve internal pressure in the storage shed.

The invention relates to a gas separation system and a gas separation method. The gas separation system comprises a gas inlet pipeline assembly; the separation device is provided with a containing cavity, the containing cavity communicates with the gas inlet pipeline assembly, the containing cavity is configured to be used for containing an adsorption material, and the adsorption material is configured to be used for adsorbing gas or desorbing the gas from the adsorption material so as to separate the gas; the temperature adjusting device is connected with the separating device, and the temperature adjusting device is configured to be used for adjusting the environment temperature in the containing cavity; and the pressure adjusting device is connected with the separating device, and the pressure adjusting device is configured to be used for adjusting the environment pressure in the containing cavity. The gas separation system can flexibly adjust the temperature and pressure according to different requirements of adsorption and desorption, so that adsorption and desorption are more thorough, the separation effect is good, an adsorption material is regenerated more completely, and the service life of an adsorbent is prolonged.

This invention discloses a variable multi-parameter chamber wire fire spread testing system. The system includes: a combustion chamber for providing a sealed testing space; an environmental parameter adjustment unit, including a temperature adjustment module, a pressure adjustment module, and an oxygen concentration adjustment module, for independently adjusting the ambient temperature, ambient pressure, and ambient oxygen concentration within the combustion chamber; an ignition unit, located within the combustion chamber, for igniting the wire under test; and a flow field velocity measurement unit for measuring the airflow velocity field and vortex structure during the wire fire spread process. This invention's variable multi-parameter chamber wire fire spread testing system can test the wire fire spread behavior under different environmental conditions such as temperature, pressure, and oxygen concentration, and record and analyze the wire characteristic parameters during the fire spread process under different environmental conditions to assess the fire hazard of wires under special environmental conditions.

The present application relates to carbon dioxide solidification concrete technical field, disclose a kind of carbon solidification concrete wall forming system, comprising: by the unit integrated with pressure and temperature sensor carries out gas pulse injection, and initial strategy is set using pressure fluctuation to estimate water content before injection, in injection, the pressure attenuation data collected is calibrated and compensated using ambient pressure sensor simultaneously, closed-loop adaptive control to injection strategy is realized, the present application is coupled by gas injection and internal state perception calibrated by environment, so that each injection is adjusted according to the real physical response of wall, to actively inhibit the dominant penetration channel, change carbon dioxide from disorder diffusion to guided distribution, this design gets rid of the dependence of solidification process on external environment stability and internal initial condition uniformity, ensure the homogeneity and reliability of wall solidification under large-scale field construction.

A heat transfer system including an active component and a dissipation region is described. The active component is configured to undergo vibrational motion. The active component transfers fluid from a high pressure region to an ambient pressure region via an egress. The active component also induces a pulsating pressure in the fluid. The pulsating pressure is dissipated in the dissipation region such that turbulence is reduced where the fluid is introduced to the ambient pressure region.

Transfer unit configured to transfer products during inter-factory transport in a clean environment from a first cleanroom in a first factory to a second cleanroom in a second factory remote from the first factory, comprising: - a container having a plurality of panels that together enclose a compartment configured to receive the products; - a door opening in one of the side panels; - a passive pressure equalizer that is configured to equalize a pressure inside the compartment based on a pressure differential with an ambient pressure in an environment outside the container, comprising one or more than one equalization channel; and - an air conditioner that is in flow connection with at least one of the one or more than one equalization channel and configured to treat ambient air from the environment outside the container that enters to inside the compartment via the one or more than one equalization channel.

The invention relates to a sensor device (10) for detecting a physical variable (110) acting on the sensor device (10), in particular an ambient pressure acting on the sensor device (10), wherein the sensor device (10) has a sensor unit (11) which operates according to an optical measurement principle, and the sensor device (10) is designed to detect the physical variable (110) by means of the sensor unit (11) and to detect a movement of the sensor device (10), the movement being carried out in particular during the detection of the physical variable (110), and / or to at least partly compensate for an influence of the movement on the detection of the physical variable (110).