8results about How to "Avoid carbonization" patented technology

The application provides a plate drying device, which comprises a drying box and a loading vehicle. A drying assembly is arranged in the drying box. A plurality of clamping grooves are formed in a bearing flat plate of the loading vehicle. Plates are inserted into the clamping grooves. A jacking assembly is arranged in the clamping grooves and is lifted to make the plates exposed completely when the jacking assembly is lifted. An elastic member is fixed to one side of the bearing flat plate. The other end of the elastic member is connected with a longitudinally extending support column. The other end of the support column is connected with a pressing plate which extends horizontally above the bearing flat plate. The plate drying device can push the plates out of the clamping grooves through the jacking assembly, so that the plates are exposed completely and are dried by the drying assembly. The drying effect is improved. The pressing plate is driven by the elastic member to press the plates up and down. The movement tracks of the plates to the left and right are limited by the clamping grooves. The limiting effect is good. The stress of the limiting parts is balanced. The plates are not damaged by the pressing marks.

This invention discloses a microwave ablation electrode, relating to the field of medical device technology. It mainly includes a main needle body, whose working end can release microwave energy to achieve microwave ablation. The main needle body is equipped with a non-working end circulating cooling structure and a working end liquid injection structure. The non-working end circulating cooling structure allows a cooling medium to reach the non-working end of the main needle body to cool the non-working end and surrounding tissue, and also allows for the return flow of the cooling medium. The working end liquid injection structure allows a cooling medium to reach the working end of the main needle body to cool the working end and surrounding tissue, and also allows the cooling medium to be injected into the lesion tissue, absorbing microwave energy to form steam, achieving steam thermal ablation. This invention achieves dual ablation through steam thermal ablation and microwave ablation, improving the ablation effect, reducing the temperature of the working end of the microwave ablation electrode, and increasing the moisture content of the tissue surrounding the working end, thus reducing carbonization of the lesion tissue.

This invention relates to the field of organic compound preparation technology, specifically a method for preparing 11-triglycerides of carbonate via low-temperature acylation. This method uses glycerol and undecanoyl chloride as raw materials, employing a synergistic system of a "composite acid-binding agent + Lewis acid catalyst," and combines in-situ dehydration technology and a stepwise heating strategy in a dual-solvent environment to achieve efficient synthesis. The specific steps include: under nitrogen protection, dissolving glycerol in a dichloromethane-toluene dual solvent, adding a composite acid-binding agent of pyridine and N,N-diisopropylethylamine, anhydrous zinc chloride catalyst, and 4A molecular sieve for in-situ dehydration; dropwise adding undecanoyl chloride at a low temperature of 5-10°C, followed by sequential heating to 30°C for 2-3 hours and then reacting at 50°C for 12-16 hours; and post-processing using a combined process of filtration-multi-stage extraction-membrane separation-column chromatography. This invention provides mild reaction conditions, effectively suppresses side reactions, produces high-purity products, increases molar yield, and reduces solvent toxicity and purification costs.

The invention discloses an automatic laser cutting machine and method for nonmetal cutting, and relates to the technical field of laser cutting machines. The automatic laser cutting machine for nonmetal cutting comprises a shell, a three-dimensional five-axis laser cutting machine is installed on the top wall of the shell, and a plurality of inclined air channels are formed in the outer side of the shell in the circumferential direction of a window at equal intervals; the moving-through control device is used for communicating the first inner cavity and the second inner cavity where one window is located and completing waste gas absorption and contact surface cooling, and the filtering device is used for filtering impurities. According to the automatic laser cutting machine and method for non-metal cutting, the supporting shell is matched with a special-shaped piece opening hole through the window, the inner wall is stably supported to prevent collapse and deviation, circumferential uniform cooling and cutting gas dust absorption are synchronously achieved through an inner cavity of the window, a moving cylinder moves to enable a through hole to only communicate with an assembly of a to-be-cut station, the station is rapidly switched, time is saved, and the working efficiency is improved. And airflow is intensively utilized, the equipment energy consumption is reduced, and the stable cold suction effect is ensured.

The application relates to the technical field of simmering equipment, and discloses a simmering device for animal oil production, which comprises a main body structure, a simmering structure and a driving structure, the simmering structure is movably arranged on the main body structure, the driving structure is fixedly arranged on the main body structure, and the driving structure is connected with the simmering structure. The application has the beneficial effects that the transmission structure is simple and reliable, the heating is more uniform, local overheating, scorching and carbonization are effectively avoided, the oil quality and the oil yield are obviously improved, the support and the inclination are flexibly adjustable, the heating effect is strengthened, the overall heating production efficiency is improved, the oil is smoothly discharged, automatic solid-liquid separation is realized, residues are automatically collected, cleaning is convenient and sanitary, the manual strength is reduced, and the sanitary standard is improved; the heating assembly can be replaced, the maintenance cost is low, and the integrated design is high in production continuity.

The utility model discloses a kind of finned tube heat transfer enhancement structure for waste heat recovery device, it is related to finned tube technical field, including heat exchange bin, the inside fixed mounting of heat exchange bin has finned tube main body, finned tube main body includes liquid conduit and several radiating fins, the inside of radiating fin is equipped with several through holes, liquid conduit is sequentially penetrated in the through hole of several radiating fins inside, the side of heat exchange bin inner wall is fixedly connected with several airflow baffles in linear arrangement mode, one end of several airflow baffles is respectively arranged between two adjacent radiating fins.The utility model changes the flow direction of high-temperature gas by the setting of airflow baffle, forms turbulent flow, reduces flow rate, prolongs the residence time of airflow, promotes gas and radiating fin to contact fully, enhances the convection heat transfer of this finned tube.

The utility model relates to a detection device for diesel engine counterweight adjustment belongs to the technical field of crankshaft counterweight detection, the detection device for diesel engine counterweight adjustment, include: set up in the clamping plate of dynamic balance testing machine detection platform, the recess is established in the top of clamping plate, auxiliary assembly, auxiliary assembly sets up in the recess of clamping plate, wherein, clamping assembly includes setting up in the fin of clamping plate, the one side of fin is provided with guide plate, through setting up the fin of auxiliary assembly, can when the high -speed rotation of crankshaft, the heat of lubricating oil inside auxiliary shell is continuously discharged outward, to the heat of lubricating oil and outside each other exchange, reach the heat dissipation of lubricating oil, prevent the problem of high temperature and cause lubricating oil carbonization to occur, through setting up guide plate, and the guide plate is cotton board, can when the auxiliary shell cooperation heat insulating ring holds the limit of crankshaft neck, continuously supplies the oil for the crankshaft neck to keep lubrication, prevents the dry grinding phenomenon.

This invention discloses a multi-effect synthesis apparatus and method for hydrogen sulfide synthesis. The apparatus has a vertical columnar structure, and its interior is arranged from bottom to top as follows: a first-effect liquid sulfur synthesis zone, a second-effect gas-liquid two-phase sulfur synthesis zone, a third-effect compensation synthesis zone, and a condensation and sulfur replenishment zone. The first-effect liquid sulfur synthesis zone is used for the main reaction of molten sulfur and hydrogen. The second-effect gas-liquid two-phase sulfur synthesis zone is used for the deep reaction of residual sulfur vapor and hydrogen. The third-effect compensation synthesis zone is used for the compensation catalytic synthesis of unconverted hydrogen and utilizes temperature drop to condense and reflux gaseous sulfur. The condensation and sulfur replenishment zone is equipped with a condensation coil for gradient cooling of the rising gas, causing gaseous sulfur to condense into liquid and fall for reuse. The top of the apparatus corresponding to the condensation and sulfur replenishment zone is equipped with a hydrogen sulfide gas outlet. This invention has the advantages of low energy consumption, high raw material conversion rate, high utilization rate of sulfur and hydrogen, and high purity of the produced hydrogen sulfide product.