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842 results about "Pressure controller" patented technology

Air power engine assembly

The invention relates to an air-powered engine assembly, which comprises an air tank, an air valve, an air distributor, an intake pipe, camshafts, an intake duct, an exhaust control device, air cylinders, pistons, crankshafts, couplers, clutches, automatic gearboxes and differentials connected with the outside. The assembly is characterized in that the air valve, a constant pressure chamber and a pressure controller are arranged between the air tank and the air distributor; the air distributor is connected with a plurality of air cylinders on an air cylinder gasket; each air cylinder is connected with an exhaust chamber through an exhaust manifold; the exhaust chamber is provided with a turbine generator which is connected with a storage batter; the air cylinders are provided with the camshafts for controlling the air intake and exhaust of the air cylinders; the air cylinders are provided inside with the pistons for driving the crankshafts to rotate; the camshafts and the crankshafts are connected by chains; and the crankshafts are connected with the differentials through the couplers, the clutches and the gearboxes in turn. Therefore, doing work through air compression rather than fuel, the air-powered engine assembly has the advantages of avoiding waste gas discharge and air pollution, along with reliable operation, convenient operation, economical efficiency, practicality and so on. In addition, due to recycle of the waste gas for power generation, the air-powered engine assembly saves energy and reduces costs.
Owner:周登荣 +1

Novel electric cooker

The invention discloses a novel electric cooker which comprises a pot body, a pot cover and a liner, wherein the liner is placed in the pot body; and the pot cover is disposed on the pot body and used in cooperation with the pot body. The novel electric cooker is characterized by comprising a temperature controller, a pressure controller, a moisture measurement device and a single-chip microcomputer, wherein the single-chip microcomputer is disposed on the inner wall of the pot body and connected to the temperature controller, the pressure controller and the moisture measurement device; the temperature controller comprises a heater and a temperature sensor, and the heater is disposed on the bottom of the outer wall of the liner; the temperature sensor is disposed on the inner wall of the pot cover; the pressure controller comprises an adjustable steam micro-pressure valve and a pressure sensor, and the adjustable steam micro-pressure valve is disposed on the pot cover; the pressure sensor is disposed on the inner wall of the pot cover; and the moisture measurement device comprises a moisture measurement instrument. According to the invention, rice can be soaked for a proper period, and accurate control of temperatures and pressures can be achieved, so that the best rice cooking effects can be achieved.
Owner:GUANGDONG LIANJIANG YILAIDUN CO LTD

Pressing-twisting multi-shaft loading testing machine

The invention discloses a pressing-twisting multi-shaft loading testing machine. The pressing-twisting multi-shaft loading testing machine comprises a machine frame, a sample pressure chamber, an axial pressure controller, a confining pressure controller and an oil source system, wherein the sample pressure chamber is arranged on the machine frame and is used for accommodating samples therein; the axial pressure controller is used for applying axial loads to the samples in the sample pressure chamber; the confining pressure controller is used for applying confining pressure loads to the samples in the sample pressure chamber; the oil source control system is used for controlling the axial pressure controller and the confining pressure controller respectively to apply different paths of loads; and the axial pressure controller and the confining pressure controller are configured in a mode that the axial force is coupled with the confining force when the loading of the samples in the sample pressure chamber is buffered. The pressing-twisting multi-shaft loading testing machine can integrate complicated loading such as pressing-twisting combination, plane strain, true triaxiality and the like and is suitable for the tests of static power units of the common coarse-grained soil and ideal soil simulation materials during engineering construction.
Owner:TSINGHUA UNIV

Hydrogen storing container hydrogen environment fatigue test system

The invention discloses a hydrogen container hydrogen environment fatigue test system. One end of a high pressure hydrogen container is respectively communicated with a test container and a low pressure hydrogen container through an explosion protection pressure reducing valve, a flow regulating control valve, a first normal open stop valve and a test container depressurizing valve; the low pressure hydrogen container is communicated with the other end of the high pressure hydrogen container through a booster pump; a pressure sensor and a cycle recording device are arranged between the first normal open stop valve and an atmospheric valve; the normal open stop valve, a pressure display and a standard pressure gauge are arranged between the test container and the normal open stop valve; one path of an automatic control system operation console is respectively electrically connected with the booster pump and the pressure gauge through an excessive pressure controller; the other path of the automatic control system operation console is electrically connected with the atmospheric valve and the test container depressurizing valve. The high pressure hydrogen in the high pressure container is charged into the test container through the explosion protection pressure reducing valve and the flow regulating control valve, the explosion protection pressure reducing valve is closed when a set pressure is reached, the test container depressurizing valve is opened after maintaining the pressure for a while, and the hydrogen is depressurized into the low pressure container to complete a fatigue test cycle.
Owner:ZHEJIANG UNIV

Compacted rock gas phase relative permeability measurement device and method

The invention discloses a compacted rock gas phase relative permeability measurement device and method. The measurement device comprises a rock core clamp, a confining pressure pump, a variable-volume upstream pressure chamber, a variable-volume downstream pressure chamber, a high-pressure gas source, a control table and a nuclear magnetic resonance spectrometer, an air outlet of a high-pressure air source is connected with an inlet of the variable-volume upstream pressure chamber sequentially through a valve a, a first pressure controller and a valve b, an outlet of the variable-volume downstream pressure chamber is connected with the rock core clamp through a valve c, the rock core clamp is connected with an inlet of the variable-volume downstream pressure chamber through a valve d, an outlet of the variable-volume downstream pressure chamber is connected with a pressure relief opening through a valve f, and the rock core clamp is arranged in a measuring cavity of the nuclear magnetic resonance spectrometer. The invention provides a measurement method based on the measurement device. The measurement device has the advantages that gas relative permeability of compacted rocks can be rapidly and effectively measured.
Owner:SOUTHWEST PETROLEUM UNIV

Air quantity changeable air conditioner system air blast static pressure optimizing control method and apparatus

The invention discloses a variable air volume (VAV) air-conditioning system air-supply static pressure optimizing and controlling method and a device thereof. A static pressure setting optimizer inspects valve location signal, namely air valve opening, of a VAV terminal in every air-conditioning area, and a VAV terminal with largest valve location signal is selected from all the valve location signals. A static pressure setting value P is changed by the static pressure setting optimizer to lead the valve location of the VAV terminal to reach or get close to the largest opening. The rotating speed of a air-supply fan in the VAV air-conditioning system is controlled by a static pressure controller according to the difference of the statistic pressure setting value P set by the static pressure setting optimizer and the static pressure value gained by an air passage static pressure transducer, so that the static pressure of the air passages can reach the setting value P. The variable air volume (VAV) air-conditioning system air-supply static pressure optimizing and controlling method of the invention can not only guarantee the comfort requirement for every VAV air-conditioning system area in a heavy load, but also save the energy consumption of the air-supply fan in a relatively light load. The device for realizing the method is simple in structure and reliable in performance.
Owner:HUNAN UNIV

Decompressed purge-and-trap processing equipment for non-volatile organic compound in water sample and processing method thereof

The invention discloses decompressed purge-and-trap processing equipment for a non-volatile organic compound in a water sample and a processing method thereof. The invention is characterized in that the equipment is formed by sequentially connecting a sample heater (1), a purge bottle (2), a trapper (3), a pressure controller (4) and a pump (5), wherein purge gas (6) is connected with the purge bottle (2) through a purge gas inlet (7); the purge bottle is connected with the trapper (3) through a purge gas outlet (8); the trapper (3) is connected with the pump (5) through the pressure controller (4); the gas trapped by the trapper (3) is taken out and then placed into a heater (13) of the trapper; chromatographic carrier gas (14) is connected with a chromatographic injection port (12) in a column oven (11) through the trapper (3) and a transmission pipeline (15); and the chromatographic injection port is connected with a chromatographic detector (9) through a chromatographic column (10). The processing method comprises the following steps: forming a negative pressure environment around a test sample under the action of the pump, and increasing the vapor pressure of the non-volatile organic compound under the negative pressure environment; purging the bottom of the sample by utilizing inert gas so that the target compound can be trapped by the trapper after being blown out from the sample; and finally, resolving the target compound at high temperature and then carrying out chromatographic analysis.
Owner:四川省环境监测中心站

Microdroplet spray device, and method for preparing CNTs film by deposition through microdroplet spray device

ActiveCN105129769AJet fastJet realizationMaterial nanotechnologyResonant cavitySpray nozzle
The invention discloses a microdroplet spray device, and a method for preparing a CNTs film by deposition through the microdroplet spray device, and aims to solve the technical problem that the CNTs film prepared by a current microdroplet spray device is poor in quality. According to the technical scheme adopted by the invention, the microdroplet spray device comprises a pressure controller, a vibration driver, a three-dimensional motion base plate, a spray nozzle, a resonant glass tube, a piezoelectric ceramic tube, a computer, and a three-dimensional motion base plate controller. The method for preparing the CNTs film by deposition through the microdroplet spray device comprises: regulating the pressure controller, so that a CNTs suspension liquid at the spray nozzle has back pressure; then, driving the piezoelectric ceramic tube to generate quick vibration by virtue of the vibration driver, transmitting the vibration to the CNTs suspension liquid in a micro-channel resonant cavity through the resonant glass tube, thereby realizing spraying of tiny microdroplets of the CNTs suspend liquid; and controlling the three-dimensional motion base plate to carry out three-dimensional motion by virtue of the computer, thereby completing preparation of the CNTs film. The preparation of the CTNs film with a controllable dimension is carried out, according to a designation part, in an open environment, so that quality of the CNTs film is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
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