226 results about "Pressure temperature" patented technology

A pressure-temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO₂ and/or H₂S from a natural gas at high adsorption pressures (e.g., at least 500 psig) to create product streams of very high purity (i.e., very low contaminant levels).

The invention relates to a synchronous reckoning method of utility boiler efficiency and coal heat value as well as ash content and moisture content, wherein air supply temperature, smoke exhaust temperature, smoke exhaust oxygen content, carbon content in fly ash, boiler-fed fuel content, boiler evaporation amount, assembly electric generating load, main steam pressure temperature, reheated steam inlet/outlet pressure temperature, water supply pressure temperature and flow rate, steam drum pressure, reheater temperature lowering water jet amount and steam extraction pressure temperature of each heater of high pressure cylinder are read through a plant-level supervisory information system (SIS) of a thermal power plant; and the parameters as the water temperature and drainage temperature of the inlet/outlets of different-level heaters of the high pressure cylinder are synchronously reckoned by hypothesizing the initial values of the coal heat value, the coal ash content and the coal moisture content, utilizing a boiler anti-balance heat efficiency model, a dry air amount required for theoretical combustion and actual smoke quality simplified calculating model, an actual smoke quality calculating model, an actual smoke volume calculating model, an actual smoke amount calculating model, a boiler positive-balance heat efficiency model and a boiler effective utilized heat model, and establishing prediction and rectification methods.

The invention relates to a device and a method for simultaneously testing the permeability of compact rocks under transient state and steady state, and belongs to the fields of rock engineering and unconventional oil and gas reservoir engineering. The testing device for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises a three-shaft pressure chamber, a bias pressure control system, a confining pressure control system, an upper end permeating system, a lower end permeating system, a vacuum pumping system, a constant temperature system and a data controlling and collecting system. The method for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises the following steps: demarcating the reference volume, providing the confining pressure and bias pressure temperature environment for a sample, and testing the permeability under the transient state and the permeability under the steady state. For the device and the method, the practical bias pressure, back pressure and constant temperature testing environment conforming to the engineering is provided, the fluctuation error of the temperature can be controlled within -0.1 DEG C to +0.1 DEG C, the volume error of the gas can be controlled within 0.3%, and the error of the injected pressure can be controlled within 0.5%. The test of the permeability under the transient state in constant pressure and constant volume ways can be simultaneously realized; when the permeability is tested in the constant volume way, the volume of a reference container can be adjusted according to the volume of a pore.

A fixing device, an image forming apparatus using the fixing device, and a temperature control method therefor. The fixing device includes a fixing roller, a heat roller including first and second heat sources, a fixing belt, a pressure roller including a pressure heat source, a first temperature detector, a second temperature detector, and a pressure temperature detector. The heat sources are regularly on and off according to a duty cycle, and at least one of the heat sources is controlled by the duty cycle during paper feed. A wattage of one of the heat sources is added to a wattage of at least one of the other heat sources when the temperature detected by the first or second temperature detector corresponding to the one of the heat sources reaches the set temperature such that a duty ratio of the at least one of the other heat sources is increased.

A control method based on pressure-temperature carbon dioxide heat pump firstly collects the refrigerant temperature of air cooler outlet of the heat pump system, evaporator wing temperature and refrigerant pressure at the outlet of the compressor; then the method transmits the collected temperature signal to the control device to obtain the target pressure of refrigerator at the outlet of the compressor; and then the method compares the refrigerant pressure at the outlet of the compressor collected by the pressure sensor to the target pressure of refrigerator at the outlet of the compressor, obtaining a control signal for controlling the opening of the electrical expansion valve, so that the method controls the operating parameter of the entire system; this method also circulatorily collects temperature, pressure signals and finally achieves that the refrigerant pressure at the compressors reaches target pressure. This invention achieves the control of the electrical expansion valve via collecting the refrigerant temperature of air cooler outlet of the heat pump system, evaporator wing temperature and refrigerant pressure at the outlet of the compressor to adjust pressure of the heat pump system, reaching great COP value.

A fuel delivery system for use, for example in a gas turbine engine system, includes a fuel metering unit including a main fuel inlet. The fuel metering unit includes fuel pressure and temperature sensors. A cavitating venturi is in fluid communication with the main fuel inlet and includes venturi characteristics such as throat diameter. A fuel nozzle is in fluid communication with the venturi for delivering fuel to the gas turbine engine. A controller is connected to the pressure temperature sensors and is operable to calculate a flow rate of fuel through the nozzle based upon the signals from the pressure and temperature sensors and the fuel and venturi characteristics. A variable cavitating venturi may be arranged within the throat to vary the area and adjust the flow rate through the venturi. The cavitating venturi can also be used at the fuel nozzle to further simplify the fuel delivery system.

The invention discloses a method and a device for controlling the fuel-gas ratio of a dual-fuel engine. The method comprises the following steps that: an electronic control unit (ECU) of the dual-fuel engine determines the working state of a diesel engine and performs fault diagnosis according to an accelerator position signal, a water temperature signal of the diesel engine and a natural gas pressure temperature signal which are acquired, and accurately controls the ratio of diesel to natural gas according to a rotating speed signal of the diesel engine and an original fuel injection pulse width signal which are acquired. By the method and the device, the ratio of the diesel to the natural gas can be accurately controlled according to different working states of the diesel engine, so that the dual-fuel engine is safely and stably operated, and the consumption of fuels and the emission of tail gas are reduced.

The invention discloses a three-way confining pressure and temperature combined loading device for a Hopkinson compression bar impact test. The three-way confining pressure temperature combined loading device comprises an axle load loading device consisting of an incident rod and a transmitting rod and an annular pressure temperature combined loading device, wherein the annular pressure temperature combined loading device comprises a cylinder of which two ends are provided with cylinder covers; a shaft hole through which the incident rod and the transmitting rod penetrate is reserved in the middle of the cylinder cover; a test piece is coaxially arranged between the incident rod and the transmitting rod; an oil-resistant rubber sleeve is arranged on the test piece and at the periphery of the incident rod and the transmitting rod in the cylinder; a test piece positioning sleeve with a hole is arranged on the outer side of the oil-resistant rubber sleeve; an exhaust hole is formed above the cylinder, and an oil injection hole is formed below the cylinder; a heating device is arranged on the outer side of the test piece positioning sleeve; a temperature measurement device is arranged on the surface of the test piece. By adoption of the combined loading device, the Hopkinson compression bar impact test loading of three-way confining pressure and temperature coaction can be realized, and material dynamic parameters under the three-way confining pressure and temperature coaction are provided for scientific calculation and engineering application.

The invention is in use for providing device and method of graphics text information for crowd of visual disturbance. In the device, mouse, keyboard or pick-up head through series-parallel ports or USB port are connected to computer. Through mouse, keyboard or pick-up head, operator selects expectant graphics text. Through series-parallel ports or USB port, signal of graphics text output from computer is connected to a haptic stimulus device of jet flow. Through control cable, output signal of the haptic stimulus device of jet flow is connected to haptic display of jet flow. Finally, information of graphics text in haptic mode of jet flow acts on skin surface of operator. The operator obtains knowledge and haptic cognition about surrounding environment. Using confluent characters of pressure-temperature of jet flow stimulus, the invention can provide haptic display of heat sensation or information of color graphics text.

The invention discloses a device and a method for evaluating the influences of the sudden change of the working fluid temperature on the mechanical integrity of a pit shaft. The device comprises a test main body and a working platform, the working plate comprises a computer, the computer is provided with a pressure temperature control terminal, the test main body comprises a support and a kettle body, a simulated surrounding rock-cement ring-cannula assembly is arranged in the kettle body, and the kettle body is provided with a gas feeding and discharging pipeline. The method comprises the following steps: filling an annular space with cement, waiting for setting the cement to form a ring in order to form the simulated surrounding rock-cement ring-cannula assembly, changing the experiment temperature and the experiment pressure according to different downhole conditions, measuring the radial displacement of a cannula by a foil gauge, measuring the circumferential displacement of the simulated surrounding rocks by a circumferential displacement meter, and using a high pressure gas on the end surface of the cement ring to evaluate the failure or not of the sealing of the cement ring. The device and the method have the advantages of reliable principle, simplicity in operation, real simulation of the circulation of a drilling fluid, increase of the influences of the instantaneous reduction of the temperature, caused by the injection of a large amount of a low temperature fluid to the pit shaft during working, on the cannula cement ring, and provision of theoretic basis for the researches of the mechanical integrity of the pit shaft.

The invention discloses a preparation device and preparation method of a high-flux metal material with multiple master batches and multiple energy sources. The device includes a high-energy electron beam generator, an arc generator, a laser, an arc generator and a high-energy electron beam generator. Converter, reflective laser prism, matrix master batch tank, high-efficiency ball mill-mechanical mixing-turbulent air mass synergistic mixing box, integrated structure of conduit and quality control valve, powder feeding pipe, atmospheric pressure and temperature controllable processing chamber, carrier protective gas , induction heating coil, self-heating three-dimensional motion sample processing platform, high-throughput preparation of new metal materials, using quality control valve to quantitatively distribute pure metal powder to the mixing box according to the calculated design requirements, high-efficiency ball milling-mechanical mixing-turbulent air mass synergy The mixing system thoroughly mixes multiple powders. The invention has wide application range, simple operation and wide range of materials that can be prepared.

The invention relates to a solid propellant multi-target wire dynamic combustion performance testing system and a method. The method adopts a multi-target wire combustion rate testing system; dynamic combustion performance testing can be conducted; static testing can be conducted; and two measurement modes are convenient to switch. A change relation of combustion rate-pressure and combustion rate-temperature is obtained, and a combustion rate pressure index and a combustion rate temperature sensitivity coefficient are calculated. Small-dose testing can evaluate the combustion performance of a tested propellant within a corresponding pressure temperature change range, and is very suitable for conducting rapid performance detection, quality control and the like on each batch of products in a production process of the propellant. Compared with the common combustion rate testing system, the system shortens a development production cycle of the propellant, reduces raw material consumption, reduces manual operation, and saves the cost.

The invention relates to a solid propellant multi-thermocouple dynamic combustion performance testing system and a method. The method adopts a multi-thermocouple combustion rate testing system; dynamic combustion performance testing can be conducted; static testing can be conducted; and two measurement modes are convenient to switch. A change relation of combustion rate-pressure and combustion rate-temperature is obtained, and a combustion rate pressure index and a combustion rate temperature sensitivity coefficient are calculated. Small-dose testing can evaluate the combustion performance of a tested propellant within a corresponding pressure temperature change range, and is very suitable for conducting rapid performance detection, quality control and the like on each batch of products in a production process of the propellant. Compared with the common combustion rate testing system, the system shortens a development production cycle of the propellant, reduces raw material consumption, reduces manual operation, and saves the cost.

A heat transfer system and method for cryoablation includes a cryo-catheter with a tip, and a temperature sensor mounted at the distal end of the cryo-catheter. A system controller is in electronic communication with both a pressure regulator and the temperature sensor. The system takes advantage of the transfer of latent heat to minimize the tip temperature at the distal end of the cryo-catheter. More specifically, after measuring the temperature at the distal end of the cryo-catheter, and comparing the temperature data and input pressure to a known pressure-temperature curve, the input pressure of the liquid fluid refrigerant may be adjusted. At the correct pressure setting, the liquid fluid refrigerant will begin to boil at the distal end of the cryo-catheter, and the tip temperature will be at a minimum.

The invention relates to an indoor and outdoor person seamless positioning device. The indoor and outdoor person seamless positioning device comprises a power module, a microprocessor module, a short-distance wireless communication module, a long-distance wireless communication satellite positioning module, a signal acquisition module, a wireless fidelity (WiFi) communication module and a human-computer interface module, wherein the power module supplies power to the microprocessor module, the short-distance wireless communication module, the long-distance wireless communication satellite positioning module and the signal acquisition module; the output end of the signal acquisition module is electrically connected with the input end of the short-distance wireless communication module; the short-distance wireless communication module, the long-distance wireless communication satellite positioning module, the WiFi communication module and the human-computer interface module are in communication connection with the microprocessor module respectively; the signal acquisition module comprises an air pressure temperature sensor, an inertial sensor and a geomagnetic sensor; the output ends of the air pressure temperature sensor, the inertial sensor and the geomagnetic sensor are electrically connected with the input end of the short-distance wireless communication module respectively; the microprocessor module is used for storing indoor and outdoor map data. The indoor and outdoor person seamless positioning device is simple in structure and integrates various positioning and communication devices such as a global positioning system (GPS), the WiFi communication module, the inertial sensor and the geomagnetic sensor.

This invention discloses one petrol well control and test pressure system, which comprises the following parts: virtual device system composed of hydraulic card bent, hydraulic power station, test pump set, industry control computer, data collection module, data process module, automatic control module to collect, control and analyze data, wherein, the system collects data through data collection module and test pump electrical magnetic valve, pressure temperature sensor and then processes automatic control through data process module.

The invention provides a continuous production technology for a microchannel reactor of hydrogenated butadiene-acrylonitrile rubber. The continuous production technology for the microchannel reactor of the hydrogenated butadiene-acrylonitrile rubber comprises the following steps of firstly, adding raw materials NBR (nitrile-butadiene rubber), homogeneous catalyst RhCl(PPh3)3 and ligand PPh3 into solvent to prepare glue solution of certain concentration; and under the condition of certain pressure temperature, continuously sending the glue solution and hydrogen into the microchannel reactor for hydrogenation. According to the technology, the characteristics of efficient mass transfer and heat transfer capability and big possibility of being directly amplified of the microchannel are utilized, a single-channel microreactor and a microchannel microreactor are adopted, the hydrogenation degree can be above 99.5%, and the yield of the hydrogenated butadiene-acrylonitrile rubber is higher than 99%. The technology has higher operation safety and high selectivity, the continuous production can be realized for the reaction by controlling the flow of the mixed glue solution of hydrogen with the raw material and the catalyst, and the continuous production technology has the advantages of low energy consumption, short reaction time, high safety, no side effect, simple technical flow and low production cost.

The invention provides an anti-frosting method and system for an air conditioner. The method includes the steps that meteorological parameters of the area where the air conditioner is located are obtained, wherein the meteorological parameters comprise temperature information and humidity information of the area where the air conditioner is located; according to the temperature information and the humidity information of the meteorological parameters, the dew point temperature of the area where the air conditioner is located is obtained; and according to the dew point temperature, operation parameters of the air conditioner are adjusted, so that the low-pressure temperature corresponding to operation low pressure of the air conditioner is higher than or equal to the dew point temperature. The air conditioner is well combined with the meteorological parameters of the area where the air conditioner is located, the dew point temperature of the area where the air conditioner is located is worked out through the meteorological parameters, operation of the air conditioner is adjusted according to the dew point temperature, the low-pressure temperature corresponding to the operation low pressure of the air conditioner is always higher than or equal to the dew point temperature of the area where the air conditioner is located, and therefore the air conditioner is free of a defrosting phenomenon even in the environment where the temperature is low and humidity is increased, the heat exchange effect of the air conditioner cannot become bad since the air conditioner does not frost, and the heating effect of the air conditioner is effectively improved.

A layering flow tester of a low injection water quantity water injection well comprises a cable head, an adjusting arm device, an adjusting arm adjusting mechanism, an electromagnetic flowmeter component, a sealing mechanism and a guiding mechanism. A pressure temperature sensor and a control module are sequentially arranged at the lower end of the cable head, the adjusting arm device comprises an adjusting arm fixing base and an adjusting arm, the adjusting arm adjusting mechanism is connected above the adjusting arm device and controls opening and closing of the adjusting arm, the electromagnetic flowmeter component comprises a main flowmeter body, an electromagnetic flowmeter, a liquid flowing channel, a water inlet and a water outlet, the sealing mechanism is connected below the electromagnetic flowmeter and comprises a sealing actuator and at least two sealing devices, the sealing actuator drives the sealing devices to expand or contract, the water outlet is arranged between the sealing devices, the guiding mechanism is connected below the sealing mechanism and comprises a guiding motor, guiding connectors and a guiding arm, and the guiding motor is connected with the guiding arm through the guiding connectors.

The invention discloses an integrated measuring device for multiple-point type flow velocity pressure temperature, and belongs to the technical field of flue gas flow velocity measuring devices. The integrated measuring device for the multiple-point type flow velocity pressure temperature comprises a gas circuit detection unit (8), a backflow calibration unit and a sensing measurement unit (17). An outlet of a dynamic pressure tube of the gas circuit detection unit (8) and an outlet of a static pressure tube of the gas circuit detection unit (8) are respectively connected with an air inlet of the backflow calibration unit. A temperature sensor of the gas circuit detection unit (8) is connected with the sensing measurement unit (17). Through the integrated measuring device for the multiple-point type flow velocity pressure temperature, multi-point measurement on the same pitot tube is achieved, flow velocity of a cross hatching line is directly outputted, accuracy of measurement of fuel gas flow velocity is improved, a gas circuit of a system is shortened, loss of backflow air supply pressure which is caused by the phenomenon that the gas circuit is too long is prevented, the backflow effect is enabled to reach an optimal level, and the gas circuit is prevented from being blocked by dust.

A method/device for evaluating oxygen sensor signals of an air supply channel connected to an exhaust gas channel of the internal combustion engine, via an exhaust gas recirculation having at least one exhaust gas recirculation valve; the oxygen sensor being downstream from the exhaust gas recirculation initiation; the sensor signal(s) being corrected as a function of at least one characteristics variable describing the dependence of the sensor signal on the oxygen concentration or a correlated variable, and/or additional physical variables. At at least one engine operating point(s), in response to a closed exhaust gas recirculation valve, output oxygen sensor signals and additional operating point parameters are recorded/stored; and an adaptation of the characteristic variables is derived assuming that the gas composition corresponds to pure air. Also, a characteristics curve adjustment and a compensation of pressure temperature dependencies may be performed to improve the accuracy of the oxygen sensor signals.

The present invention relates to an anti-acne cosmetic combination containing nanometer active component. The combination comprises the active component of nanometer latex taking 5 to 45wt percent of the combination, antioxidant taking 0.01 to 0.10wt percent of the combination and thickening agent taking 0.01 to 0.10wt percent of the combination, and the rest are carrier and deionized water which are acceptable to the cosmetic, wherein, the nanometer latex of the active component comprises at least one kind of vitamin A, C and E fatty acid ester, organic acid, anti-inflammatory agent and fat soluble anticorrosion bactericide and also comprises emulsifying agent, grease, stabilizing agent, etc.; the nanometer latex is prepared under certain pressure temperature and time, and the uniform and stable nanometer latex is formed inside a high pressure viscolizer. The combination of the present invention can eliminate the acne, has good skin slow-release effect, does not stimulate skin easily and can be absorbed by the skin easily.

The invention relates to a calibration method for SF6 gas density relay. An absolute pressure transducer and/or a relative pressure transducer can be adopted for measuring an absolute pressure relay and/or a relative pressure relay, and then a pressure value when the SF6gas density relay acts is obtained; according to the type of the relay to be tested, namely the absolute pressure relay or the relative pressure relay, the type of the transducer used for measurement, namely the absolute pressure transducer or the relative pressure transducer, the temperature value during measurement, and the pressure-temperature characteristic relation of the SF6 gas, a corresponding pressure value at 20 DEG C is obtained after data processing, and thus the accurate test on the performance of the SF6 gas density relay is completed. The calibration method for SF6 gas density relay provided by the invention can calibrate SF6 gas density relays of various measurement philosophies under various circumstances without being affected by located atmosphere pressure.

The present invention provides a temperature increasing and pressurizing foam cement slurry density testing device, and belongs to the field of oil field foam cement slurry cementing. The device comprises a pressure system, a temperature system, a test system and a computer acquisition system. According to the present invention, the foam cement slurry is placed into a cavity of a pressure resistance kettle; a piston is arranged on the upper part of the cement slurry; a pressurizing chamber is arranged on the upper part of the piston; a specially made high precision displacement sensor is arranged on the piston; and the upper part of the piston is fitted with a precision pressure source. According to the present invention, under the pressure effect, the volume of the foam cement is compressed, the piston moves downward, the displacement amount is measured by the displacement sensor and is converted into the digital amount. With the device of the present invention, the density change law of the foam cement at a certain temperature under a certain pressure can be accurately measured; the computer acquisition system is adopted to display and record the pressure-temperature-density curve, such that the strong basis is provided for real evaluation of the density of the foam cement under the underground construction conditions.

The invention discloses a hot isostatic pressure near-net forming method for a semi-solid complex difficult-machining compact piece. The hot isostatic pressure near-net forming method comprises the steps that a semi-solid material is used as a forming material, graphite is used as an internal form control core, the hot isostatic pressure temperature is selected as the solid-liquid two-phase interval temperature, and the compact piece in a complex shape is directly formed under coupling of temperature and pressure. According to the hot isostatic pressure near-net forming method for the semi-solid complex difficult-machining compact piece, performance defects caused by powder surface pollutants in traditional methods can be effectively overcome, and the part forming precision can be effectively ensured through high pressure at the high temperature; in addition, the temperature close to the melting point of an alloy material is adopted, and a solid-liquid coexisting phase occurs in a ladle sleeve at the temperature; due to the fact that liquid phase components exist among crystal grains or solid phase particles, the solid phase particles almost have no binding force and are very low in flow deformation resistance, and a complex runner in the form control core is filled with parent metal advantageously; and moreover, the solid phase particles are easy to separate on specification portions, and while, due to the fact that the liquid phase components exist, the separated portions are very easy to connect integrally.

The invention relates to a nuclear product hydraulic test automatic control system, which uses Zigbee wireless communication. Wherein, it is formed by pressure temperature sensor, Zigbee I/O card, Zigbee route node, Zigbee network consulter, PLC controller, Zigbee MODBUS gateway and detector; the pressure temperature sensor and the terminal node, and one PLC controller are at the site of hydraulic test, via network consulter, route node and Zigbee IO card, to form one Zigbee wireless network, and via Zigbee-Modbus gateway, to transmit relative data to the detector and PLC control system that detecting and recording data, to be compared with the data collected and transmitted via line. The invention can realize full-automatic program control, to improve the test accuracy.