52results about How to "Not easy to vaporize" patented technology

The invention relates to a cooling method used for directional solidification and a cooling device therefor. In the method, liquid metal is taken as cooling liquid, and a formwork is cooled by adopting the spray cooling method independently or adopting the spray cooling method and the immersion cooling method simultaneously. For the cooling device, a liquid metal spraying device is arranged under a direction solidification holding furnace, and the liquid metal is taken as the cooling liquid to cool the pull-down formwork by spraying independently or accompanying with the immersion. The invention has the advantages that the thermal radiation of a heating area and a cooling area for direction solidification can be insulated; and the cooling liquid is recycled, so as to cool the cooling liquid in cycling.

The invention provides a field soil water potential measurement instrument. The field soil water potential measurement instrument comprises a base, an induction sleeve, an outer sleeve and a pressure sensor, wherein the base is provided with a cavity body and a conical base; a water exhaust hole is formed in the conical base of the base, and is communicated with the cavity body; one end of the pressure sensor extends into the cavity body of the base, and is tightly connected with the base; the outer sleeve sleeves the outer sides of the pressure sensor and the base; the outer periphery of the base is provided with a groove around the cavity body; a prefabricated water permeation hole is also formed in the base; the prefabricated water permeation hole is communicated with the groove and the cavity body; the induction sleeve sleeves the base and covers the outer side of the groove. The field soil water potential measurement instrument provided by the invention is assembled in air-free water so as to guarantee that the internal cavity body has no air bubble; moreover, the saturation steps are simple, the saturation effect is good, and vaporization is difficult; the base is provided with the conical base, which is even beneficial to the setting of the field instrument, and the field instrument can be in favorable contact with the soil body. The invention also discloses a using method of the field soil water potential measurement instrument.

The invention discloses application of a gallium liquid metal material to a teletransmission pressure and different pressure transmitter. The pressure and different pressure transmitter is provided with a capillary tube filled with a liquid medium, and the whole or part of the capillary tube is filled with the gallium liquid metal material. According to parameter requirements of the gallium liquid metal material, the heat conductivity is larger than 10 W / m*k, the kinematic viscosity is (5*10-8-9*10-8) m<2> / s, the melting point is lower than 15 DEG C, and the boiling point is larger than 1000 DEG C. The gallium liquid metal material is gallium liquid metal or gallium-based liquid alloy metal. The application has the beneficial effects that the gallium liquid metal material with the very high nominal melting point is used on the pressure and different pressure transmitter, the gallium liquid metal material is not liable to be vaporized even the nominal high-temperature boundary point is approached, the gallium liquid metal material still has very good fluidity, the performance cannot be affected, and sensitivity and precision of a measuring instrument are maintained. The highest use temperature of the gallium liquid metal material can be 1200 DEG C or higher, and the gallium liquid metal material can also be used on high-temperature and negative-pressure occasions.

The invention is suitable for laser cutting, and provides a laser cutting method and laser cutting equipment. The method comprises the following steps of: blowing oxygen to a cut position of a workpiece; and irradiating laser to the cut position of the workpiece. The equipment comprises a gas blowing device for blowing the oxygen to the cut position of the workpiece, and a laser for irradiating the laser to the cut position of the workpiece. In the laser cutting method provided by the embodiment of the invention, the oxygen is blown to the cut position of the workpiece, so that a workpiece material is fully contacted with the oxygen and is quickly vaporized under the action of the laser, an oxide film generated by reacting the workpiece material with the oxygen improves the beam spectral absorption factor of a reflecting material in the workpiece, the blown oxygen takes molten oxide and vapor away and disperses heat outside the cut position simultaneously, a heat affected zone is small, a cut edge is difficult to carbonize, and product quality is high.

The invention discloses a method for absorbing and separating carbon dioxide, which comprises absorption and desorption of the carbon dioxide at certain temperature and specifically comprises the following steps: mixing alcamines compounds and ethylene glycol compounds to form solution so as to obtain an absorbent; making the absorbent contact the gas to be absorbed in gas-liquid mass transfer equipment to obtain a liquid product; and desorbing and separating the liquid product to obtain the carbon dioxide so as to realize the regeneration of the carbon dioxide. The absorbent adopted by the method can efficiently absorb the carbon dioxide, has little corrosion to the equipment, and can realize the regeneration of the carbon dioxide and the cyclic utilization of the absorbent.

The low temperature vacuum drier for processing leather includes one cover on the machine frame, at least one layer of working board with heating element and vacuumizing ports and hoisted by means of oil cylinder onto the machine frame, one liquid collecting tank connected to the liquid draining grooves and connected to the vacuum pump, at least two safety devices on the uprights of the machine frame, one condensation system connected to the working board, one sealing cover below the working board, one cooling pipeline around the working board, and vacuum pump comprising oil circulating vacuum pump and Roots vacuum pump. The present invention has high vacuumizing capacity, lowered operation temperature, no damage on the leather tissue and raised quality of dried leather.

The invention relates to a boiler flue gas purifying and heat exchanging device. The boiler flue gas purifying and heat exchanging device comprises a boiler, a flue gas purifying chamber, a first heat exchanger, a second heat exchanger and a reverse osmosis membrane set, wherein the boiler is communicated with a flue inlet in the flue gas purifying chamber through a flue gas pipeline, a flue gas outlet in the flue gas purifying chamber is communicated with the second heat exchanger, a liquid outlet in the flue gas purifying chamber is communicated with the first heat exchanger, the first heat exchanger is communicated with the reverse osmosis membrane set, and the reverse osmosis membrane set is communicated with a liquid inlet in the flue gas purifying chamber; the flue gas purifying chamber comprises a casing, a flue inlet pipe, a DC power supply, a negative electrode, a positive electrode, an activated carbon layer and a flue exhausting pipe; circulation liquid is stored in the casing; a coil pipe is arranged on the first heat exchanger, a heat exchanging flue pipe is arranged on the second heat exchanger, and an outlet in the heat exchanging flue pipe is communicated with a chimney. According to the boiler flue gas purifying and heat exchanging device disclosed by the invention, when flue gas is purified through the flue gas purifying chamber, the circulation liquid in the flue gas purifying chamber directly performs heat exchange with the flue gas; the circulation liquid is in direct contact with the flue gas, so that the heat exchanging efficiency is high, and the heat loss is low.

The invention discloses a municipal refuse pyrolysis processing method, which puts the combustible gas into the air inlet of the container of the municipal refuse; the high temperature combustible gas dries and pyrolyzes the municipal refuse; the air in the container filled with the municipal refuse is discharged from the air outlet of the container; the fuel gas discharged from the air outlet of the container is burnt completely in the gas burner. The invention uses the biomass high temperature combustible gas generated by the forestry and agricultural residues to re-pyrolyzes the municipal refuse, opens up the novel usage of the biomass energy high efficiency use, to make the biomass energy utilization, the environmental protection, the refuse innocuity, the refuse resource integrated.

The invention discloses a composite cathode for electrode reaction in a rare earth metal fluorine-containing melting system. The composite cathode includes a U-shaped tungsten sleeve, a filler, an electrical connector, a thermocouple and a cooling pipe. The U-shaped tungsten sleeve is filled with filler The open end of the U-shaped tungsten sleeve is connected with an electrical connector, and the thermocouple extends through the electrical connector to the bottom of the filler. The thermocouple is wrapped with a cooling tube, and the cooling liquid is passed through the cooling tube. The material of the U-shaped tungsten sleeve is Tungsten, the filler material is copper alloy, and the hot electrode material of thermocouple is platinum-rhodium alloy. The composite cathode is light in use, high in strength, and has good thermal conductivity, and is not easy to be oxidized and gasified due to high temperature, which reduces the cost of use, and is also equipped with a temperature measurement function.

The invention discloses a method for determining water content in glyceryl triacetate, which comprises the steps of preparing an internal standard solution, preparing a standard working solution, preparing a sample solution, carrying out gas chromatographic analysis, drawing a standard curve and calculating results. The method disclosed by the invention firstly realizes effective detection of microgram level water content in glyceryl triacetate, improves the sensitivity of trace water content, and can reduce the errors caused by the problems of pretreatment method repeatability of and instrument precision. The adopted chromatographic conditions result in good separation degree of the chromatographic peaks of a target compound and an internal standard, and good linear correlation between the chromatographic peaks of target compound and the internal standard, and the detection limit is in a range of 0.01-0.02mug / g. The method disclosed by the invention has a mark-on recovery rate in a range of 88-98% and a mean relative standard deviation (RSD) in a range of 4.0-5.6, indicating high recovery rate and good repeatability.

The invention discloses a double-cavity liquid film miniature liquid combustor and a combustion method thereof. A combustion barrel is composed of an inner barrel and an outer barrel, a plurality of primary ventilation holes are formed in the inner barrel in the circumferential direction at intervals, a gap between the lower end of the inner barrel and a lower end cover serves as a secondary ventilation opening, and a grid is arranged above the primary ventilation holes. Air entering from an air inlet tube drives liquid fuel coming from a fuel inlet to enter a gap between the outer wall of the inner barrel and the inner wall of the outer barrel in a rotational flow mode, so that a liquid film is formed by the liquid fuel and attached to the outer wall of the inner barrel, the liquid film on the outer wall of the inner barrel evaporates constantly as the air flows, mixed gas is formed by the liquid film and the air, one part of the mixed gas enters the inner barrel through the primary ventilation holes, and the other part of the mixed gas enters the inner barrel through the secondary ventilation opening of a lower port of the inner barrel from bottom to top. The combustor solves the technical problems that as for an existing miniature combustor, fuel is combusted insufficiently and unstably, flames are prone to extinguishing and combustion efficiency is low.

The invention relates to a RH vacuum refining method for raising yield of antimony element. After RH refining alloying for 5 min, an antimony ingot is separately added from the top of ladle slag; through slag coverage, the antimony ingot is avoided from being directly exposed in the air and in a vacuum chamber under the low atmospheric pressure condition; and simultaneously, lumpiness of the antimony ingot and top slag content are controlled and it is ensured that most antimony element is molten in molten steel. Thus, gasification amount of antimony element is minimized, and yield of antimony element is obviously raised. In comparison with an existing RH vacuum refining technology, the method provided by the invention creates beneficial conditions for gasification of antimony ingots, remarkably raises yield of antimony element, reduces production cost and realizes considerable economic benefit.

A high-power lithium ion battery for an automobile start-stop power supply comprises a positive plate and a negative plate, the tab width accounts for more than 50% of the width of the battery; the positive electrode current collector is a conductive coating aluminum foil with the total thickness of 24 microns, the conductive coating is coated on the positive electrode current collector before thepositive electrode active substance is coated, and the total thickness of the conductive coating is 0.5-2 microns; the positive electrode active substance is lithium iron phosphate; the positive electrode conductive agent is a mixture of carbon nanotubes, graphene and carbon black; and the electrolyte contains a lithium salt, an organic solvent and an additive. According to the invention, the overcurrent capacity of the battery can be improved, the power performance is enhanced, the problem of low conductivity of the lithium iron phosphate anode is solved, and the electrode conductivity is improved; particularly, the low-temperature rate discharge capacity is improved by more than 30%; the falling of lithium iron phosphate from the aluminum foil can be slowed down, and the cycle life is prolonged by about 8%; the electrolyte is not easy to vaporize at a high temperature, still has low viscosity at a low temperature of -30 DEG C, and maintains high ionic fluidity.

The invention discloses an environment-friendly low oil smoke metal pressing lubricant. The lubricant is prepared from the following component in percentage by weight: 0.5 to 1 percent of quaternary ammonium phosphate, 0.2 to 0.5 percent of amine antioxidant, 2 to 5 percent of sulfurized olefin, 10 to 13 percent of trimethylolpropane trioleate, 1.5 to 4 percent of sulfide fatty acid ester, 0.5 to1 percent of a T154 dispersant, 0.5 to 1 percent of polyisobutylene, 0.2 to 0.5 percent of surfactant, 38 to 42 percent of No.150 base oil and 38 to 42 percent of No.68 base oil. Meanwhile, the invention also discloses a preparation method of the environment-friendly low oil smoke metal pressing lubricant. The environment-friendly low oil smoke metal pressing lubricant is suitable for molding various carbon steel pipes, deep hole parts, sleeve parts and metal nonstandard parts with a fasces shape; during molding, a large amount of heat can be adsorbed and oil is not easy to vaporize, so that oil smoke is reduced and the aim of reducing smoke on a processing site is achieved. In addition, no chlorinated paraffin is used, so that the hazards caused by free chloride are prevented.

The invention belongs to the field of fuel gas catalysts and particularly relates to a light paraffin fuel gas rare earth catalytic synergist, as well as a preparation method and an application thereof. The formula of the catalytic synergist comprises the following raw materials in parts by weight: 3-6 parts of cerium nitrate, 0.3-0.6 part of ferrocene, 30-50 parts of ethanol, 10-20 parts of acetone and 15-25 parts of petroleum ether. The catalytic synergist is prepared through the steps of preparing additives, mixing the raw materials and filtering. The catalytic synergist is safe, environment-friendly and stable, and the preparation method and the application are simple; a light paraffin fuel after the rare earth catalytic synergist is added is high in combustion flame temperature and high in combustion speed, and can reduce the cost; the application fields are wide; and the requirements on purity of the light paraffin and the like taking natural gas, coalbed gas, biogas (biomass fuel gas) after purification, propane gas, liquefied petroleum gas and the like as parent gas are lower, and the adding proportion is low.

The invention discloses a heat radiation and storage device for a large power device in a logging instrument, and belongs to the field related to logging technology. The heat radiation and storage device comprise a heat conducting pedestal, a heat conducting cover plate, a heat conducting pipe and a heat absorbent module; the heat conducting pedestal is mounted in the surface of the large power device, one end of the heat conducting pipe is tightly fit with the heat conducting pedestal and fixed by the heat conducting cover plate, the other end of the heat conducting pipe is inserted into a heat absorbent housing and makes direct contact with a heat absorbent in the casing, and the heat absorbent housing uses a heat absorbent end cap to seal the heat absorbent therein. The invention also discloses a corresponding method. Heat of the large power device can be directly introduced into and stored in the heat absorbent through the heat conducting pedestal and the heat conducting pipe in the heat conduction manner, a heat transfer process is omitted, heat is transferred and stored more efficiently, the temperature rise rate of the large power device in the logging instrument can be effectively inhibited, and the heat radiation problem of the large power device during long-term high temperature down-hole work can be solved.

The invention relates to a multistage centrifugal high pressure liquefied hydrocarbon pump. The multistage centrifugal high pressure liquefied hydrocarbon pump comprises an axial force balance mechanism, a mechanical seal self-flushing mechanism and a rotating shaft, wherein a liquid return hole is formed in a first-stage middle section of the pump, a second-stage middle section sealing rubber ring is arranged between a second-stage middle section of the pump and an outer barrel, and a suction box body sealing rubber ring is arranged among a suction box body, the outer barrel and the first-stage middle section; one end of a balance liquid return pipe assembly is connected with a balance chamber, and the other end of the balance liquid return pipe assembly is connected with a second-stage impeller suction chamber by virtue of the outer barrel; one end of a forward flushing pipe assembly is connected with an outlet of a first-stage impeller, the other end of the forward flushing pipe assembly is connected with a driving side mechanical seal assembly, one end of a backward flushing pipe assembly is connected with a suction chamber, and the other end of the backward flushing pipe assembly is connected with a non-driving side mechanical seal assembly. The multistage centrifugal high pressure liquefied hydrocarbon pump also comprises an automatic control reflux type thermal control mechanism. The multistage centrifugal high pressure liquefied hydrocarbon pump has the advantages that vaporization of pumping medium can be prevented, cooling and lubricating properties of a mechanical seal end face are improved, quantity of minimum continuous thermal limited flows can be reduced, energy consumption can be reduced, and safe and reliable operation of the pump is guaranteed.

The invention belongs to the relative fields of logging technologies, and discloses a packaging method and device for a high-thermal-conductivity and high-temperature-resistance heat absorbent for a logging instrument. The method comprises the steps of mixing molten paraffin wax and expanded graphite, and carrying out magnetic stirring and ultrasonic treatment on the mixture to obtain a needed molten-state composite heat absorbent material; drilling a pouring hole in an end cover or a shell of a heat absorbent container, and then injecting the molten-state composite heat absorbent material into the heat absorbent container through the pouring hole, wherein the pouring hole penetrates through the end cover or the shell; and inserting a sealing pin into the pouring hole to execute tight fitsealing, and finally going on to execute welding sealing on an interval in fit. The invention further discloses a corresponding product. With the packaging method and device for the high-thermal-conductivity and high-temperature-resistance heat absorbent for the logging instrument, and the corresponding product, a heat absorbent module with the high conductivity, the high reliability and the highresistance to high temperatures can be obtained; and compared with the prior art, the technical problems that in the prior art, a heat absorbent module is poor in heat conductivity and cannot be usedin a high-temperature environment for a long time, and so on can be effectively solved.

The invention discloses a liquid hydrogen storage tank facilitating transportation. The liquid hydrogen storage tank comprises a base, the base is of a hollow structure, inserting openings matched with a forklift fork are arranged on the periphery of the base, the middle portion of the upper surface of the base is fixedly provided with a first rubber pad, first clamping mechanisms are symmetrically and fixedly installed on the portions, located on the left and right sides of the first rubber pad, of the upper surface of the base, and each first clamping mechanism comprises a vertical plate, athreaded hole, an adjusting bolt, a clamping block and a second rubber mat, wherein the lower surface of the vertical plate is fixedly mounted on the upper surface of the base, and the threaded hole is formed in the vertical plate. The liquid hydrogen storage tank facilitating transportation avoids rapid gasification of liquid hydrogen and ensures the storage time of the liquid hydrogen; the inserting openings are formed in the base, so that liquid storage tanks can be conveniently loaded, unloaded and carried, and the working efficiency is improved; and through the first clamping mechanisms and the second clamping mechanisms, the liquid storage tanks in different sizes and specifications can be installed between stand columns, meanwhile, the shockproof effect is better, and safety and practicality are provided.

The invention provides a supercharged stable conveying system for carbon dioxide, and relates to the technical field of carbon dioxide conveying. The supercharged stable conveying system comprises a low-temperature liquid storage tank, a carbon dioxide pressure-stabilizing storage tank, a condensation device and a carbon dioxide booster pump, wherein the output end of the low-temperature liquid storage tank is connected with the input end of the carbon dioxide pressure-stabilizing storage tank through a conveying pipeline; the output end of the carbon dioxide pressure-stabilizing storage tank is connected with the input end of the condensation device through a conveying pipeline; the output end of the condensation device is connected with the input end of the carbon dioxide booster pump through a conveying pipeline; the output end of the carbon dioxide booster pump is connected with a production line through a conveying pipeline; one-way valves are arranged on all of the conveying pipelines; a pressure sensor is further arranged in the carbon dioxide pressure-stabilizing storage tank; and the carbon dioxide pressure-stabilizing storage tank is further connected with a pressure pump. The supercharged stable conveying system further comprises a PLC, wherein the PLC is connected with the one-way valves, the pressure sensor and the pressure pump respectively. The supercharged stable conveying system provided by the invention solves the problem that carbon dioxide is extremely liable to gasify in the case of pressing, and then ensures that carbon dioxide is conveyed into the production line in the form of a pure liquid state.

The invention provides a spherical TiC powder plasma preparation method including the following steps: 1) selecting TiC powder particles with a particle size of 40 [mu]m to 200 [mu]m; 2) carrying outplasma ignition; 3) after the ignition is successful, adjusting and controlling the gas pressure and the gas flow quantity in a reaction vessel, and establishing stable argon gas-hydrogen gas plasma;4) allowing argon gas carrying the TiC powder particles to enter the plasma, and preparing molten TiC droplets; and 5) cooling and solidifying the molten TiC droplets, and thus obtaining the sphericalTiC powder. The invention also provides the spherical TiC prepared by the preparation method. The TiC powder provided by the invention has high spheroidization rate, is not easy to vaporize in the preparation process and cannot be blown away to the inner wall of the device, and can effectively control the dispersity of the particles, thereby being not collided and adhered with each other.

The invention relates to a solder wire soldering flux capable of reducing splashing and a preparation method thereof. The soldering flux is composed of the following components in percentage by weightof 1.0-10.0% of compound organic acid, 0.2-5.0% of compound activator, 0.1-1.0% of compound defoamer, 2.0-10.0% of compound solvent, 0.1-1.0% of antioxidant, 0.1-1.0% of corrosion inhibitor and the balance of compound rosin. The preparation method comprises the following steps of heating, stirring and melting the compound rosin, adding the compound organic acid and the low-melting-point indissolvable activator, adding the solution dissolved with the high-melting-point dissolvable activator, the antioxidant and the corrosion inhibitor, finally adding the compound defoamer, performing continuous stirring at the constant temperature of 145-165 DEG C, performing full dissolving, and performing uniform mixing, thereby obtaining the soldering flux. The soldering flux is high in activity, easy to tin during welding, low in corrosion, small in residue and high in insulation resistance, the splashing number and the splashing distance of the soldering flux and tin beads in the welding process of a lead-free tin wire can be greatly reduced, the RoHS instruction is met, and the reliability of electronic and electrical products after welding is guaranteed.

The invention discloses an aluminum plate wrapped multifunctional hair straightener and relates to the field of hairdressing devices. The two sides of a lower aluminum plate are each clamped by a lower press strip; lower cloth is arranged on the surface of the lower aluminum plate; a lower aluminum plate plug is mounted at one end of the lower aluminum plate; a lower cover plate and a lower cover plate plug are mounted on the other side of the lower body; one end of the lower cover plate is clamped with one end of the lower cover plate plug; the lower cover plate and the lower cover plate plug are fixedly connected with the other side of the lower body through multiple first screws; an upper clamp spring, an upper elastic sheet, an upper silica gel pad, a FUSE, a second MCH, a second manganese steel sheet and an upper aluminum plate are mounted in one side of an upper body; the two sides of an upper aluminum plate are each clamped byan upper press strip; and upper cloth is arranged on the surface of the upper aluminum plate. Since each aluminum plate of the hairdressing device is wrapped by a layer of cloth, a user feels smoother hair in use; with an antistatic function, the surface is smooth like silk; and for straightening wet hair, the water on the surface of the wrapping cloth is not vaporized easily, and thus the using needs of people are met.

The invention provides a pretreatment method of a high-pressure liquid component. According to the pretreatment method, a high-pressure liquid component comprising a liquid-phase component and a gas-phase component is dissolved in a dissolving liquid, so that a solution can be formed; since the dissolving liquid can absorb the liquid-phase component, the separation of the gas-phase component fromthe liquid-phase component in the high-pressure liquid component can be realized. With the pretreatment method of the invention adopted, the volatile gas-phase component can be quantitatively and accurately separated out, so that the gas-phase component and the liquid-phase component can be detected separately. Compared with previous analysis sample feeding methods, the method of the invention canseparate a gas phase and a liquid phase in a sample and then detect the gas phase and the liquid phase separately, so as to obtain an accurate analysis result.

The invention relates to a two-step blowing secondary refining process, wherein, during the first step, the compound powder of CaC2 and CaCO3, Na2CO3 or MgCO3 is injected into a ladle; after primary blowing, fluidization calcium metaaluminate 12CaO.7Al2O3 powder which is treated through crushing and passivation is injected into molten steel; moreover, the amount of each blown powder is determined according to different types of steel. Compared with the secondary refining processes such as LF furnace and ladle blowing of CaSi powder, the invention can substantially reduce technological operation time, increases operation efficiency and obtains satisfying refining effect.

The invention provides a waste gas treatment apparatus used in a catalyst production process. The apparatus comprises a saturator and a spray washing tower, the spray washing tower is provided with a water inlet tube, the water inlet tube penetrates through the spray washing tower and extends into the saturator, and the portion of the water inlet positioned between the saturator and the spray washing tower is provided with a nozzle; the saturator is used for cooling waste gas discharged into the saturator, and then discharges waste gas into the spray washing tower; and the spray washing tower is used for washing and purifying the cooled waste gas discharged from the saturator. The saturator is used to cool the discharged waste gas, so gasification does not occur during water wash spraying in the spray washing tower, thereby the content of fine dusts into air is substantially reduced, the adsorption quantity of a filler in the spray washing tower is reduced, the replacement frequency of the filler is reduced, the cost is saved, and the work efficiency is improved.

The invention is suitable for laser cutting, and provides a laser cutting method and laser cutting equipment. The method comprises the following steps of: blowing oxygen to a cut position of a workpiece; and irradiating laser to the cut position of the workpiece. The equipment comprises a gas blowing device for blowing the oxygen to the cut position of the workpiece, and a laser for irradiating the laser to the cut position of the workpiece. In the laser cutting method provided by the embodiment of the invention, the oxygen is blown to the cut position of the workpiece, so that a workpiece material is fully contacted with the oxygen and is quickly vaporized under the action of the laser, an oxide film generated by reacting the workpiece material with the oxygen improves the beam spectral absorption factor of a reflecting material in the workpiece, the blown oxygen takes molten oxide and vapor away and disperses heat outside the cut position simultaneously, a heat affected zone is small, a cut edge is difficult to carbonize, and product quality is high.

The invention discloses a temperature rise control system of a high-pressure liquefied hydrocarbon pump. The temperature rise control system comprises an axial force balancing mechanism and a mechanical-seal self-washing mechanism; a liquid returning hole is formed in the first-stage middle section of the mechanical-seal self-washing mechanism; a second-stage middle section sealing rubber ring is mounted between the second-stage middle section and an outer cylinder body of the mechanical-seal self-washing mechanism; a sucking box sealing rubber ring is mounted among a sucking box, the outer cylinder body and the first-stage middle section; one end of a balancing liquid returning pipe component is connected with a balancing chamber through a pump cover; the other end of the balancing liquid returning pipe component is connected with a second-stage impeller sucking chamber through the outer cylinder body; one end of a forward washing pipe component is connected with the outlet of a first-stage impeller; the other end of the forward washing pipe component is connected with a mechanical sealing component at a driving side; one end of a backward washing pipe component is connected with the sucking chamber; the other end of the backward washing pipe component is connected with the mechanical sealing component at the non-driving side. The temperature rise control system also comprises a self-control backflow type thermal control mechanism. The temperature rise control system disclosed by the invention is capable of preventing gasification of a pumped medium, improving cooling and lubrication of a mechanically-sealed end face, reducing the quantity of minimal continuous heat limit flow, reducing energy consumption and guaranteeing safe and reliable running of the pump.

The invention provides a qualitative and quantitative analysis method for a high-pressure liquid material. The qualitative and quantitative analysis method for the high-pressure liquid material comprises the steps of: a pretreatment process, wherein the pretreatment process can completely separate gas-phase components mixed in the high-pressure liquid material and can obtain pretreated liquid-phase components, and the pretreatment process does not have any influence on the content of each component in the liquid-phase components. The separated gas-phase components and the pretreated liquid-phase components are respectively detected, and accurate analysis results can be obtained by adopting different detection methods according to different components contained in the liquid-phase components and the gas-phase components, so that the workload of a detection device is reduced, the detection cost is saved, and the detection accuracy is improved. The detection of the liquid components can achieve the qualitative and quantitative analysis of the components with larger content difference or larger property difference in the liquid components by one-time sample injection, has high detection efficiency and high detection accuracy, and is very beneficial to popularization and application.

The embodiment of the invention provides a polymerization exhaust spraying system. The system comprises a polymerization kettle, a spraying tank and a water-sealed tank; the spraying tank is connected with the polymerization kettle, so that gas generated in the polymerization kettle enters the spraying tank; a spraying device is arranged in the spraying tank; the spraying tank is connected with a tail gas system, so that non-condensable gas in the spraying tank enters the tail gas system; the water-sealed tank is connected with the bottom of the spraying tank, so that liquid in the spraying tank flows back to the water-sealed tank; the water-sealed tank is connected with the spraying device so as to provide spraying water for the spraying device; the water-sealed tank is connected with an emptying pipeline and an overflow pipeline, and the emptying pipeline and the overflow pipeline are connected through a branch pipeline; a first stop valve and a second stop valve are arranged on the emptying pipeline; a third stop valve is arranged on the overflow pipeline; and a fourth stop valve is arranged on the branch pipeline. The spraying system is good in spraying effect, stable proceeding of a polymerization reaction is facilitated, and the polymerization viscosity is stably increased.