7results about How to "Implement flow control" patented technology

The invention discloses a two-valve-group valve terminal for an isotope mass spectrometer, and relates to the technical field of valve terminals, the two-valve-group valve terminal for the isotope mass spectrometer comprises a valve body, a feeding pipeline is arranged in the valve body, a feeding connector is installed on the feeding pipeline, a discharging pipeline is arranged in the valve body, and a discharging connector is installed on the discharging pipeline. When the equipment is used, the feeding connector is connected with a pipeline for supplying a sample to be detected, the two discharging connectors are connected with a feeding port of a mass spectrometer, the sample to be detected enters from the feeding connector, the discharging connectors are connected with a discharging port of the mass spectrometer, and the discharging connectors are connected with a discharging port of the mass spectrometer. When the valve core assembly works, samples to be tested flowing to the mass spectrometer can be reduced or supply to the mass spectrometer can be stopped, and flow control of the samples to be tested supplied to the mass spectrometer and opening and closing of a supply pipeline can be realized.

The present application belongs to the technical field of water purification and sludge treatment equipment, and specifically discloses a sludge concentration tank for treating tap water and sludge water, which comprises a tank body, a central reaction cylinder arranged in the middle of the tank body, a water inlet pipe connected to the central reaction cylinder, a sludge accumulation area at the lower part of the tank body, a clarification area at the upper part of the tank body, and a balance tank connected to the sludge accumulation area; a plurality of annular water collecting and discharging pipes are fixedly arranged on the inner wall of the clarification area, the annular water collecting and discharging pipes are in communication with a total water outlet pipe, and the total water outlet pipe is connected to a water recycling tank; a plurality of water collecting holes are arranged at the bottom of each annular water collecting and discharging pipe, the number of water collecting holes increases from the bottom to the top, and a plurality of air vents are arranged at the top of each annular water collecting and discharging pipe; in addition to the uppermost annular water collecting and discharging pipe, an independent electric butterfly valve is arranged on each of the other annular water collecting and discharging pipes. The present application realizes the multiple functions of flow regulation, sedimentation, sludge concentration and sludge-water separation in one, reduces the occupied area, and is resistant to the impact of uneven sludge water discharge.

The invention discloses an Internet of Things platform MQTT access capability assessment method, and relates to the technical field of Internet of Things. Comprising the steps of 1, using a TSBS tool to generate time sequence data conforming to an MQTT protocol message format and storing the time sequence data, 2, modifying a Flume configuration file: configuring a batch processing size batchSize, an MQTT theme topic, host information and a spoolDir catalogue, 3, starting Flume to read the time sequence data generated by the TSBS, simulating a transmission process of the time sequence data into an actual MQTT message transmission process, and 4, starting the Flume to read the time sequence data generated by the TSBS. And 4, monitoring performance indexes of the Internet of Things platform system through Prometheus and collecting performance index data in real time, visually displaying the performance indexes and the system state through a Grafana instrument panel, and after Flume operation is completed, performing Internet of Things platform system performance analysis in combination with the performance index data and log data of the Internet of Things platform.

The application discloses a hollow perfusion screw assembly for fixing collapsed or crushed fracture of non-spinal load-bearing bone, which comprises a screw body, characterized in that a perfusion channel is arranged in the screw body; the screw body is provided with a plurality of bone cement release openings which are asymmetrically distributed on the stem along the axial direction and / or the circumferential direction of the screw body; at least part of the bone cement release openings are oblique holes, long circular holes or strip-shaped holes, and have different opening directions or hole diameters; the bone cement enters the fracture lines between large bone blocks, the fracture lines between the large bone blocks and small bone blocks which are not directly fixed by the screw, the fracture lines between small bone blocks, the gaps between crushed bone and / or the collapsed cavities through the release openings, forms a directional extension filling and bonding structure, and forms a composite load-bearing structure together with the screw body and the main bone frame.

The utility model belongs to the technical field of dispensing and dosing of flotation reagents, particularly relates to an automatic dispensing and dosing device for quartz flotation reagents, and aims to solve the problems that only granular or semi-fluid reagents can be dispensed in the prior art, the treatment effect is poor, and the reagents cannot be prevented from flowing back. The two medicine storage tanks are fixedly connected to the top of the base through a support; the two anti-crystallization heating pipes are installed on the base and communicated with the corresponding medicine storage tanks respectively, and a spiral stirring shaft and an electric heating pipe are arranged in each anti-crystallization heating pipe. According to the device, medicine solidification can be effectively prevented, the medicine utilization rate is improved, the cost is reduced, a device in which a Venturi pipe is matched with a check valve is adopted, backflow is prevented, medicine dispensing is conducted according to the proportion, and the medicine dispensing efficiency is improved. And the Venturi tube plays multiple key roles of mixing, quantitative conveying, blockage prevention and the like in the flotation reagent adding process, so that the continuity of flotation operation and the preparation precision of the flotation reagent can be improved.

The utility model relates to the technical field of carton processing, in particular to a high-efficiency carton gluing machine which comprises a workbench, a supporting plate is fixedly connected to the left portion of the upper end of the workbench, a pushing device is fixedly connected to the upper end of the supporting plate, and a side plate is fixedly connected to the upper portion of the right end of the supporting plate. A glue dipping device is fixedly connected to the middle of the upper end of the side plate, a concave bearing plate is placed in the middle of the upper end of the workbench, a control panel is arranged at the front end of the supporting plate, and a baffle is jointly and fixedly connected between the lower portion of the front plate wall and the lower portion of the rear plate wall of the supporting plate. A sliding groove is formed between the middle of the front plate wall and the rear plate wall of each supporting plate, and a connecting plate is jointly and fixedly connected between the middle of the front plate wall and the rear plate wall of each supporting plate. According to the high-efficiency carton gluing machine, the pushing device and the gluing device are arranged, so that glue supply and dipping can be controlled, the carton positioning and operation process is stabilized, the carton gluing efficiency and quality are improved, and the defective rate is reduced.

The present invention relates to the field of power plant operation technology, and in particular to a ball valve slow opening and closing auxiliary device. The device includes: the working gear is a truncated cone with a gear shape, and the front and rear radii of the gear are different; the rear side of the working gear is connected to the adjusting nut by connecting rod welding, and the other side is equipped with a clamping bearing; the upper semicircular cover plate is semicircular in shape as a whole, and the front part is equipped with a gear that matches the working gear to form a male and female gear structure; there is a rectangular cavity in the middle of the upper semicircular cover plate; the rear side of the upper semicircular cover plate is connected to the upper part of the sliding groove; the lower semicircular cover plate corresponds to the upper semicircular cover plate as a whole and is connected by a nut; the front part of the lower semicircular cover plate is a smooth surface, and the working gear has no contact with the lower semicircular cover plate when moving forward and backward; there is a rectangular cavity in the middle of the lower semicircular cover plate; the rear side of the lower semicircular cover plate is connected to the lower part of the sliding groove. The present invention meets the operation requirements of the power plant, has the function of slowly adjusting the switch of the ball valve, and can also operate the valve quickly.