8results about How to "Ensure flow stability" patented technology

The invention relates to the technical field of chemical or physical analysis, in particular to an ERT technology-based system and method for intelligently monitoring silt blockage of a filling pipeline, and the system comprises an ERT monitoring module, a fluid mechanics optimization module, a blockage risk early warning module, an intelligent scheduling and adjusting module and a self-cleaning and repairing module. According to the method, the conductivity change of fluid in the pipeline is monitored in real time, fluid distribution is accurately mastered, parameters such as flow velocity, pressure and temperature are optimized, the flowing stability of the pipeline is ensured, blockage and deposition are avoided, flowing parameters are dynamically adjusted, flowing abnormity can be rapidly recognized and corrected, the efficiency of the filling process is improved, and meanwhile the self-cleaning function is combined. Sediments are removed through the micro-vibration technology, the maintenance cost and frequency are reduced, the service life of a pipeline is prolonged, the automation and intelligence level of the filling process is improved through the overall scheme, and mine safety and operation stability are improved.

The invention relates to the technical field of combustors, and provides a hydrogen escape prevention premixing and micro-mixing nozzle suitable for various environments, which comprises a gas inlet pipe, a spray pipe and a mixing pipe, an air inlet channel is formed in the air inlet pipe; a contraction section, a throttling section and an expansion section are formed in the spray pipe, the gas inlet channel is connected with the contraction section so that the gas flow speed can be increased to the sound speed through the contraction section, the contraction section is connected with the throttling section, and the throttling section is connected with the expansion section; a mixing channel is formed in the mixing pipe, the mixing channel is connected with the expansion section, a first air inlet and a second air inlet are formed in the side wall of the mixing channel, the first air inlet is used for introducing air or water vapor into the mixing channel, and the second air inlet is used for introducing oxygen into the mixing channel. According to the hydrogen escape prevention premixing micro-mixing nozzle suitable for various environments, the defects that an existing micro-mixing combustion technology is poor in low-load stability, narrow in working load range and high in NOx emission are overcome, and the nozzle can be suitable for various environments including water vapor and air.

The utility model relates to the technical field of inkstones, and discloses an inkstone convenient to grind and store ink, which comprises an inkstone body and an arranged grinding seat, an inkstone cavity is arranged on the upper surface of the grinding seat, and a flow guide transverse hole is arranged on the inner wall of the inkstone cavity. The lower ink taper hole is formed in the rear end of the upper surface of the inkstone body, and an inkstone pool is arranged at the front end of the upper surface of the inkstone body. And the lower surface of the ink storage seat is connected with supporting legs. According to the inkstone convenient to grind and store ink, liquid is added into the inkstone chamber, an ink ingot is rotationally ground along the inner wall of the inkstone chamber to generate ink, the rotation angle of the two sets of supporting legs on the ink storage base is adjusted, the whole inkstone body is in the state that the front face is low and the back face is high, and the ink in the inkstone chamber flows towards the inkstone pool along the surface of the grinding base through a flow guide transverse hole; after the ink stone is used, the rotation angles of the two sets of supporting legs on the ink storage base are adjusted, the whole ink stone body is in the state that the front face is high and the back face is low, and ink flows towards the ink taper hole along the ink stone body and enters the ink storage base to be stored.

This invention discloses a variable frequency eddy suppression method, apparatus, device, and storage medium for a liquid cooling heat dissipation system. The variable frequency eddy suppression method includes calculating the target flow rate of the cooling oil input to the heat source heat dissipation space based on the current flow rate of the cooling oil, the current pressure value of the heat source heat dissipation space, and the target pressure value, and simultaneously calculating the minimum flow rate of the cooling oil input to the heat source heat dissipation space; then determining whether the target flow rate is greater than or equal to the minimum flow rate. If the determination is yes, the target flow rate is used as the configured flow rate; if the determination is no, the minimum flow rate is used as the configured flow rate; then, the new frequency of the oil pump inverter is calculated based on the configured flow rate, and the calculated new frequency is set as the frequency of the oil pump inverter, thereby realizing adaptive adjustment of the pump frequency according to the heat dissipation requirements to stabilize the flow field and suppress eddies, so as to effectively maintain the flow stability during system operation.

The utility model relates to a kind of temperature control feeding device of flame retardant for epoxy resin, it includes: shell, feeding mechanism, temperature control mechanism and impurity removal mechanism, temperature control mechanism includes first heating unit, second heating unit, temperature sensor group and intelligent control assembly, first heating unit is arranged around the side wall of charging bin, second heating unit is arranged in the side wall of feeding cylinder;Temperature sensor group includes the first sensor being arranged in the inside of charging bin and the second sensor being arranged in the inside of feeding cylinder, for real-time monitoring the temperature of flame retardant raw material, obtains temperature signal;Intelligent control assembly is electrically connected with first heating unit, second heating unit, temperature sensor group respectively, for receiving temperature signal and independently or synchronously adjusting the working power of first heating unit and second heating unit, so that the temperature of flame retardant raw material is kept in preset temperature range;Impurity removal mechanism is provided with magnetic adsorption assembly and is arranged in the side wall of feeding cylinder, for adsorbing metal impurities in flame retardant raw material.

A control method for a water purifier with a diversion valve and the water purifier thereof, characterized by the following steps: 1. Start-up; 2. Diversion valve opening degree θ 初 1. Open the branch line of the unit to its maximum; 2. Check if there is flow in the ambient temperature water circuit. If yes, proceed to step 4; if not, proceed to step 7; 3. Set the diversion valve opening to θ1, and the ambient temperature water branch line receives V. 常 5. Check if there is flow in the water supply circuit. If yes, proceed to step 6; otherwise, proceed to step 3. 6. The diversion valve opening is θ2, and the normal temperature water branch receives V. 常 The water replenishment branch obtained V 补 Go back to step three; VII. Is there flow in the water supply line? If yes, go to step eight; if no, go to step two; VIII. The diversion valve opening is θ3, and the water supply branch receives V. 补 Return to step three. The advantages of this invention are: by adding a diversion valve to the branch line of the sub-unit, multiple water circuits can be connected. By optimizing the water circuit control, the problem of unstable water output at room temperature during the simultaneous use of multiple water circuits is solved. While ensuring the user experience of room temperature water use, it meets the needs of water replenishment and sub-unit water supply as much as possible.

The application discloses a lime kiln gas purification and dust removal device, which comprises a purification tank, an air inlet pipe, a conical block, a first conical filter hopper, a second conical filter hopper, an annular pipe, an atomizing nozzle, a water pump and a lifting plate. The kiln gas is evenly distributed in the purification tank through the conical block, the first conical filter hopper and the second conical filter hopper are used for two-stage filtration of dust and impurities, the sodium hydroxide solution is atomized and sprayed into the kiln gas through the atomizing nozzle, harmful gases in the kiln gas are effectively absorbed, the used sodium hydroxide solution is collected through the lifting plate and recycled, resources are saved and pollution is reduced, the solid impurities on the inner walls of the first conical filter hopper and the second conical filter hopper are scraped and cleaned through the setting of a scraping rod and an obliquely arranged rod, the lime kiln gas can be effectively purified, and the pollution to the environment is reduced.

The utility model discloses a two-stage cooling system suitable for a wind turbine generator gearbox, which is used for realizing efficient cooling of high-temperature lubricating oil in the wind turbine generator gearbox and improving the operation performance and the reliability of the gearbox. The system mainly comprises a gear box, an intermediate heat exchanger and an air cooling heat exchanger, wherein the gear box and the intermediate heat exchanger are located in a wind turbine generator cabin; the intermediate heat exchanger is provided with a high-temperature lubricating oil heat exchange side and a low-temperature working medium heat exchange side. Lubricating oil flows to the high-temperature side of the intermediate heat exchanger from the gear box through a pipeline and returns to the gear box after being cooled, and a lubricating oil heat dissipation cooling loop is formed. Meanwhile, the air cooling heat exchanger is connected with the low-temperature side of the intermediate heat exchanger through a pipeline to form a heat dissipation cooling loop of the phase change working medium. By introducing a two-stage cooling mechanism, the cooling efficiency of the gear box is effectively improved, the stable operation of the wind turbine generator under various environmental conditions is ensured, the maintenance cost is reduced, and the service life of equipment is prolonged.