8results about How to "Stable heat transfer" patented technology

The invention provides a method for stably controlling the surface quality of a high-carbon steel continuous casting billet, which comprises the following steps: high-carbon steel refined molten steel is poured, and the superheat degree of a tundish of the high-carbon steel refined molten steel is 10-25 DEG C; casting powder is added after steel drawing; the pulling speed of the casting is 0.85 to 1.30 m / min; and the high-carbon steel continuous casting billet obtained through pouring is cooled. According to the method for stabilizing the surface quality of the high-carbon steel continuous casting billet, through optimization and adjustment of a production process and cooperation with special casting powder, process parameters such as the pulling speed, the superheat degree and the one-cooling-water slow cooling mode special for the high-carbon steel are formulated, the quality stability of the high-carbon steel is effectively improved, and the percent of pass of the casting billet is increased.

The utility model relates to the anti coking lining structure of pyrolysis furnace, including base, still including the furnace body of installing on the upper end of base, and the base is connected through the mounting sleeve rotation, and the both sides of base upper end are provided with support piece, and the left end of base is fixedly installed with fixed top cover through support, and one end of fixed top cover and furnace body is connected, and the other end of furnace body is provided with the airtight cover, and the both sides of airtight cover surface are provided with flue gas pipe and discharge pipe respectively, and the surface of fixed top cover is provided with feed bin door, and the both ends of fixed top cover are all installed with mounting rod, and the surface of mounting rod is located the inside of furnace body and is provided with cleaning scraper, the utility model discloses through servo motor drive the transverse motion of mounting rod, can scrape off coking object in real time, avoid coking layer accumulation, keep the stable heat transfer performance of furnace wall, and reciprocating swing movement, make cleaning coverage wide, cooperate furnace body rotation, realize all -round cleaning at the same time, repeatedly multiple times clean scraping, make the cleaning effect better.

The utility model belongs to vacuum pump cooling technical field, concretely relates to a cooling circulation system for mechanical pump, including vaporizer, the vaporizer includes the interlayer of outside setting, the vaporizer bottom is provided with airflow delivery pipeline, the vaporizer top is connected with buffer tank, the buffer tank top is connected with vacuum mechanical pump, vacuum mechanical pump is connected with water storage jar, the water storage jar bottom is linked with the vaporizer bottom, the vacuum mechanical pump outside is provided with heat exchange coil pipe, the interlayer bottom is connected with circulating water pump, and the circulating water pump is linked with heat exchange coil pipe, and heat exchange coil pipe is linked with the interlayer upper portion. The utility model discloses a vacuum mechanical pump and vaporizer realize independent refrigeration through the cooperation, and do not rely on external energy, and the heat exchange coil pipe is integrated on the vacuum mechanical pump, realizes the independent cooling of mechanical pump, need not external cooling water source, also does not cause additional energy consumption.

The application belongs to the technical field of ship wind power boosting, and relates to a rotating cylinder wind sail deicing system based on a fluid rotary joint and a control method. The system uses the waste heat generated by the cylinder sleeve water of a ship main engine or a waste gas boiler as a heat source, and through a closed circulation loop, fluid medium is introduced into a high-speed rotating rotating cylinder internal spiral pipe or a sandwich flow channel through a multi-channel fluid rotary joint, so that the cylinder wall surface is uniformly heated. The system adopts a coaxial rotary joint structure of "inner pipe inflow and outer pipe backflow", cooperates with a balanced end face seal and an O-shaped ring to ensure leak-free transmission, and integrates environmental temperature and humidity, infrared cylinder wall temperature and vibration sensors, and switches the ice prevention, deicing and shutdown blowing modes intelligently by a PLC. The application discards high-energy-consumption electric heating slip rings, realizes zero additional power consumption, intrinsic safety and high-reliability ice prevention and deicing, significantly improves the ship energy efficiency index, and is suitable for cold region navigation scenes such as oil tankers and polar ships.

The utility model discloses a multifunctional device for controlling the constant temperature of a film blowing machine for mulching film processing, and relates to the technical field of mulching film processing equipment. The device comprises a support, a bottom plate is fixedly connected to the inner bottom of the support, and an extrusion barrel is fixedly connected to an inner cavity of the support; a switching assembly is arranged at the top of the bottom plate and comprises a supporting frame fixedly connected to the top of the bottom plate and a first lead screw movably connected to one side of an inner cavity of the supporting frame. Through the synergistic effect of the switching assembly and the clamping assembly, a standby heating system can be rapidly switched when main constant-temperature equipment breaks down, shutdown replacement is not needed, the production interruption time is remarkably shortened, it is ensured that the heating device is tightly attached to the extrusion barrel through the magnetic attraction and clamping design of the closed ring, stable heat transfer is maintained, and it is ensured that the plastic melting temperature is uniform; therefore, the thickness consistency of mulching film finished products is improved, the rejection rate is reduced, and the overall production efficiency is improved.

The present invention discloses a geothermal energy extraction device and extraction method. The gravity heat pipe of the device of the present invention includes an evaporation section, an insulation section, a condensation section and a reflux section. The evaporation section is sealed at the end away from the insulation section, and the evaporation section, insulation section, condensation section, plate heat exchanger, reflux section, and gas-liquid separator are connected end to end in sequence. The gas-liquid separator is sleeved on a section of the tube wall of the insulation section, and the gas-liquid separator is fixed on the tube wall of the insulation section by seamless welding. An independent space is formed between the inside of the gas-liquid separator and the tube wall of the section, and the liquid outlet end of the space is a guide hole arranged on the tube wall of the section; the heat transfer pipe includes a liquid inlet section and a liquid outlet section, and the liquid outlet end of the liquid inlet section and the liquid inlet end of the liquid outlet section are respectively connected to the inside of the plate heat exchanger. The method of the present invention is realized by operating the device. The present invention is both environmentally friendly and economical, does not require the consumption of pump power, and at the same time, the heat transfer speed of the heat pipe is fast and the heat transfer is stable, which can improve the efficiency of thermal energy extraction.

The application discloses a battery electrolyte dosage boundary determination method and related equipment, through scientific calculation and model construction, the electrolyte dosage boundary of the warranty period is accurately determined, and electrolyte injection amount design is optimized. Based on the porosity, volume parameters and electrolyte density of the pole piece and the diaphragm, the pore electrolyte filling amount is accurately calculated to ensure that the electrolyte is fully filled in the internal pores; in combination with the bottom structure parameters of the battery shell and the electrolyte density, the bottom filling electrolyte amount is accurately calculated to maintain the stability of the bottom heat transfer. The internal standard extraction method is used to determine the consumption of formation electrolyte, which is in line with the actual production; with the help of multi-temperature experimental data and the Arrhenius formula, a model is constructed to scientifically predict the electrolyte consumption under the working condition; according to the regression analysis of the volatilization experimental data, the electrolyte transmission amount generated due to poor sealing is reasonably calculated. Finally, the dosage boundary is determined by comprehensively considering the above-mentioned quantities, the performance reduction or cost waste caused by improper electrolyte dosage is effectively avoided, and the balance optimization of performance and cost is achieved.

The utility model discloses a membrane spraying component and heating evaporation kettle, the membrane spraying component comprises a wall scraping and liquid spraying combined pipe, the wall scraping and liquid spraying combined pipe comprises a liquid spraying pipe and a scraper arranged on the liquid spraying pipe, the wall surface of the liquid spraying pipe is provided with a narrow slit liquid spraying port arranged along the axial direction of the liquid spraying pipe, and the scraper comprises a flat plate scraper. A knife edge parallel to the axis of the liquid spraying pipe is formed at the end, away from the liquid spraying pipe, of the flat scraper, the knife edge is close to a spraying path of the narrow-slit liquid spraying opening, and the spraying path of the narrow-slit liquid spraying opening and the scraper are not intersected. The membrane spraying assembly is novel in structure, different from the prior art that feed liquid flows from top to bottom, the heating evaporation kettle adopting the membrane spraying assembly can convey the feed liquid by utilizing the pressure of a fluid pump, the flow of the feed liquid is constant, the membrane forming consistency of the feed liquid sprayed out of the narrow slit liquid spraying opening is high, and the evaporation rate of the feed liquid is consistent; particularly, the heat transfer surface of the inner wall of the kettle can be kept clean due to the wall cleaning function of the scraper, so that the heat transfer between the heat transfer surface of the inner wall of the kettle and a feed liquid film is kept stable, and the evaporation rate of feed liquid is kept consistent.