8results about How to "Precise pressure regulation" patented technology

The utility model discloses a high-precision pressure regulating valve device, which relates to the technical field of valves, and comprises a pressure regulating valve body and a butt joint pipe, and the butt joint pipe and the pressure regulating valve body are respectively and fixedly connected with a first flange and a second flange. According to the sealing structure, due to the fact that the protruding ring is smaller than the extruding groove, the extruding groove is extruded to expand towards the two sides after being stressed, the sealing ring is driven to deform to abut against the side wall of the valve seat, secondary sealing is carried out through outward deformation abutting on the basis of single-time sealing of the sealing ring, and the sealing effect is good. Then the sealing effect is further improved in cooperation with sealing of the valve element, the situation that internal medium conveying is affected by leakage is avoided, pressure adjustment is more accurate, and better buffering and wear-resisting effects are achieved by grooving the interior of the sealing ring; and in the conveying and using process, most force can be avoided through self deformation, and the service life is prolonged.

The utility model discloses a portable fuel gas pressure regulating box which comprises a box body, a gas inlet connecting pipe is arranged on one side in the box body, a gas inlet valve is arranged at the upper end of the gas inlet connecting pipe, a connecting pipe fitting is connected to the gas inlet valve, a first sensor is arranged at the upper end of the connecting pipe fitting, and a pressure regulator is arranged in the center of the connecting pipe fitting. An outlet valve is fixedly connected to the lower end of the second sensor and the connecting pipe fitting, an air outlet connecting pipe is fixedly connected to the lower end of the outlet valve, moving wheels are arranged at the four corners of the bottom of the box body, a handle is arranged at the upper end of the box body, and a lifting pull rod is fixedly connected to the back of the box body; the product has the advantages that the pressure regulating box is provided with the moving wheels, the handle and the lifting pull rod, so that the pressure regulating box is easy to move and store, the design is very suitable for equipment needing to be used in different scenes, such as industrial sites, household gas equipment or outdoor activities, and physical output during carrying is reduced due to the use of the moving wheels.

The invention discloses a frame type hydraulic machine with a quick clamping mechanism and a using method thereof, and relates to the technical field of hydraulic machines, the frame type hydraulic machine comprises a hydraulic machine fixing base, an intelligent control cabinet and an intelligent control module, and the intelligent control cabinet and the intelligent control module are designed at the top of the outer wall of the hydraulic machine fixing base; the intelligent control module achieves automatic operation of the hydraulic machine, manual intervention is reduced, and different machining technologies and modes can be conveniently set. The intelligent control module comprises an intelligent control cabinet, an automatic grabbing device and a hydraulic control unit. An image collector, a sensor and a controller are installed in the intelligent control cabinet, the intelligent control cabinet is connected with the automatic grabbing device through a third data line, and the intelligent control cabinet is connected with the hydraulic control unit through a hydraulic control line. By installing the intelligent control module, automatic operation of the whole machining process is achieved, manual operation is reduced, control parameters are automatically adjusted according to different workpiece requirements, and flexible programming is supported.

The utility model discloses a cloth pressing device for an air jet loom, which relates to the technical field of looms and comprises a frame, a guide roller mechanism and a lifting unit are fixedly mounted on the frame, a cloth pressing unit is fixedly mounted on the lifting unit, and a cleaning unit is fixedly mounted on the cloth pressing unit. The cloth pressing unit comprises a pressing plate and an adjusting seat, and the pressing plate and the adjusting seat are fixedly installed on the lifting unit. The cloth pressing device has the beneficial effects that through real-time monitoring of a first pressure sensor and cooperative work of a control valve mechanism and an air bag, accurate adjustment of cloth pressure by a pressing plate is achieved, so that acting force is evenly applied to cloth, the cloth is better tensioned and flattened, and the flatness and quality of the cloth are improved; by means of the composite coatings on the surfaces of the sliding plate, the pressing roller mechanism and the guide roller mechanism and the unique pressure monitoring and adjusting mode of the pressing roller mechanism, friction between the sliding plate, the pressing roller mechanism and the guide roller mechanism and cloth is effectively reduced, cloth abrasion and weft yarn broken ends are reduced, and production efficiency and quality are improved.

The invention discloses an industrial water supply system, and belongs to the technical field of industrial water supply. Comprising a main pipe communicated with a water source and a plurality of branch pipes communicated with the main pipe and a water using end, and a pressure regulating valve and a total flow meter are arranged at the input end of the main pipe; the branch pipe is provided with a branch pressure gauge and a branch flow meter, and the pressure regulating valve, the main flow meter, the branch pressure gauge and the branch flow meter are in communication connection to a control room; the main pipe is further provided with a plurality of water supplementing tanks in a communicating mode, and the branch pipes are further provided with pressurizing branches. According to the invention, the water supply system is integrated with an automation technology and an intelligent management system, so that accurate pressure regulation, efficient flow control, timely leakage detection and flexible remote monitoring can be realized; the production activity can be better served, the resource utilization efficiency can be remarkably improved, the operation cost is reduced, and the environmental safety is guaranteed.

The present invention provides a microchannel catalyst metering and conveying system, which comprises a catalyst unit, which is sequentially connected to a feed metering unit and a conveying unit; the feed metering unit comprises a pipe resistance module, and the outlet of the catalyst unit is connected to the inlet of the pipe resistance module. The system achieves precise control of feed by enlarging the pressure regulation range and reducing feed flow fluctuation.

The present application belongs to the technical field of hydraulic control, and discloses a large-diameter high-pressure ball valve hydraulic torque feedback adaptive control system; comprising: a multi-modal sensing module: used for collecting the torque of the high-pressure ball valve stem, the position of the valve stem, the oil pollution degree and the oil temperature, and performing corresponding filter replacement warning and temperature warning; an adaptive control module: used for denoising the torque and the position, calculating the torque error and the position error, optimizing the PID parameters of the PID control algorithm, realizing the composite closed-loop control of the torque and the position, and obtaining the control instruction; obtaining the compensated control instruction through dynamic friction compensation; a hydraulic power module: used for adjusting the pump displacement and the overflow valve opening degree according to the compensated control instruction, and outputting the oil to the actuator module; an actuator module: used for receiving the oil to drive the hydraulic motor to operate; the present application guarantees the accuracy and stability of torque control.

The utility model relates to a kind of friction clutch structure for realizing braking by pneumatics, belong to the technical field of friction braking mechanism, including rotating shaft, the rotating shaft is equipped with transmission disc, the transmission disc side is equipped with with rotating shaft movable sleeve joint's brake pressure disc, the transmission disc and brake pressure disc between being equipped with friction plate, the friction plate is equipped with several annular distribution and with transmission disc screw thread type sleeve joint fixed counterbore screw, the transmission disc and rotating shaft between being equipped with spring that drive brake pressure disc is reset.With compact structure, operating stability is good and the characteristics of long service life.Adopt the design of thrust ball bearing, solve the friction wear problem between rotating component and stationary actuator.By air pressure to generate braking force, make transmission disc and friction plate combine, to realize braking;When air pressure disappears, through spring force to make component separate, restore transmission.