30results about How to "Simple cooling process" patented technology

The invention provides an activated carbon treatment system for improving waste heat utilization rate and denitration rate and a using method thereof. Heat exchangers are separately disposed before flue gas is input into a first-stage adsorption column and a second-stage adsorption column, the temperature of the flue gas entering the first-stage adsorption column and the second-stage adsorption column is controlled, thereby ensuring the temperature of desulfurization and denitration. The activated carbon treatment system utilizes high-temperature flue gas (about 150-170 DEG C) after a main exhaust blower, adopts a mode of heat exchange, artificially controls the temperature of the flue gas entering the first-stage adsorption column and the second-stage adsorption column, and enables the efficiency of removal of SO<2> and NO<x>; and the utilization rate of the high-temperature flue gas after the main exhaust blower is increased, and the temperature of the flue gas entering a desulfurization tower and a denitration tower is controlled to improve the efficiency of desulfurization and denitration.

The invention relates to steel for an ultra-high-strength sucker rod and a production method thereof. The steel for an ultra-high-strength sucker rod is prepared from the following components: 0.07-0.13wt% of C, 4.0-7.0wt% of Cr, less than 0.50wt% of Mn, less than 0.50wt% of Si, 0.30-0.60wt% of Mo, 0.05-0.15wt% of V, 0.01-0.03wt% of Ti, less than 0.008wt% of P, less than 0.002wt% of S, 0.01-0.05wt% of Al, and the balance of Fe and unavoidable impurities; the steel also can contain less than 0.50wt% of Ni. For the steel for an ultra-high-strength sucker rod, a high-temperature tempered martensite structure can be obtained by adopting a super-clean steel smelting technology with low cost and a heat treatment process including normalizing and high-temperature tempering, nano Cr, V, Mo composite nanoparticles are used as precipitation strengthening phases, and the yield strength can reach 800MPa grade, and the steel disclosed by the invention has the corrosion resistance prior to that of KD-grade steel 20Cr2MoNiA for a sucker rod and can be used for producing H-grade ultra-high-strength corrosion-resistant steel sucker rods.

According to a trend of flue gas, the flue gas purification device for improving waste heat utilization rate and denitration rate includes a primary adsorption column and a secondary adsorption columndisposed downstream the primary adsorption column. An original flue gas conveying pipeline is connected to a flue gas inlet of the primary adsorption column; a flue gas outlet of the primary adsorption column is connected to a flue gas inlet of the secondary adsorption column through a first pipeline; the device further comprises an analytical tower; a heating section and a cooling section are disposed on the analytical tower; the lower part of the heating section is provided with a heating section gas inlet, and the upper part of the heating section is provided with a heating section gas outlet; and the heating section gas outlet of the analytical tower is connected to the flue gas inlet of the secondary adsorption column by a second pipeline. The device introduces a part of exhausted hot air after heat exchange with to-be-analyzed activated carbon into the flue gas inlet of the secondary adsorption column, and on one hand, the concentration of exhausted SO<2> is removed, and simultaneously flue gas at the inlet of the secondary adsorption column is heated to improve the temperature of the flue gas.

The invention discloses a thermal siphon oil cooling system which comprises a thermal siphon liquid accumulator, a condenser, a high pressure liquid accumulator, a condenser liquid outlet pipe and a thermal siphon liquid accumulator overflow pipe, wherein an overflow port of the thermal siphon liquid accumulator and the high pressure liquid accumulator are communicated through the thermal siphon liquid accumulator overflow pipe. One end of the condenser liquid outlet pipe is connected with a liquid outlet of the condenser, and the other end of the condenser liquid outlet pipe is connected with the thermal siphon liquid accumulator overflow pipe. The thermal siphon oil cooling system has the advantages of being simple in structure, convenient to reform, safe, reliable and capable of saving energy.

The invention relates to a novel active carbon analysis tower and an active carbon analysis process. According to different decomposition temperatures of pollutants adsorbed by active carbon, the active carbon analysis tower (A) is provided with a preheating region (A1), a water vapor decomposition region (A2), a pollutant decomposition region (A3), a cooling region (A4), a first transitional section (A5) and a second transitional section (A6) from top to bottom, wherein a water vapor outlet (A7) is formed in the side wall of the first transitional section (A5); an SRG gas outlet (A8) is formed in the side wall of the second transitional section (A6). Water in the active carbon is separated in advance by a step-by-step heating method, so as to reduce the moisture content in SRG gas to create good conditions for normal operation of acid preparation and wastewater treatment procedures at the downstream.

The invention discloses a low-temperature cooling system and belongs to the technical field of design and manufacture of medical apparatus and instruments. The invention provides a low-temperature cooling system through which the cost can be obviously reduced in the process of cooling a superconducting magnet in a temperature area from 300K to 4.2K. The low-temperature cooling system comprises a low-temperature refrigerated container, a low-temperature refrigerating unit, a liquid nitrogen container with a mounting channel, a cold shield with a perforation, and a 300K container with a connecting flange, wherein the liquid nitrogen container is positioned in the cold shield; the cold shield is positioned in the 300K container; the low-temperature refrigerating unit comprises a primary refrigerating unit, a secondary refrigerating unit and a primary hot link; the low-temperature refrigerating unit is arranged in the mounting channel through a top wall of the low-temperature refrigerated container; the secondary refrigerating unit is positioned in the mounting channel; the low-temperature cooling system also comprises a heat exchange cold guiding device positioned at the middle lower part of the mounting channel; the heat exchange cold guiding device is connected to the tail end of the secondary refrigerating unit of the low-temperature refrigerating unit.

The invention discloses an acid corrosion resistance martensite wear-resisting steel plate. The steel plate is prepared from, by mass, 0.14-0.22 wt% of C, 0.30-0.60 wt% of Si, 0.30-1.00 wt% of Mn, 0.010-0.020 wt% of Ti, 0.02-0.04 wt% of Nb, 0.50-1.0 wt% of Ni, 0.20-0.50 wt% of Cu, 0.9-1.3 wt% of Cr, 0.08-0.12 wt% of Sb, 0.0010-0.0020 wt% of B, 0-0.003 wt% of S and 0-0.012 wt% of P. The acid corrosion resistance martensite wear-resisting steel plate can achieve the purposes of good hardness, plasticity, wear resistance and corrosion resistance of the steel plate.

The invention discloses a control method for bearing steel bar network carbide and a device for implementing the method. The control method comprises the following steps that the finish rolling temperature of a bearing steel bar with the diameter being phi 20-60 mm is controlled to be 940-1000 DEG C, and the cooling speed of the bearing steel bar is controlled through a double-cooling-area cooling mode after rolling; double cooling areas include the cooling bed quick water cooling area and the cooling bed re-reddening slow cooling area; during the process in the cooling bed quick water cooling area, after rolling, the high-temperature bearing steel bar is fed into the cooling bed quick water cooling area from a cooling bed entry table, and the surface temperature of the bearing steel bar is controlled to be rapidly decreased to 400-450 DEG C through water cooling; during the process in the cooling bed re-reddening slow cooling area, when the temperature of the core part of the bearing steel bar fed into the re-reddening slow cooling area is higher than the surface temperature, heat diffuses from interior to exterior, the bearing steel bar starts to re-redden, the surface temperature is raised to 600-650 DEG C, and then the bearing steel bar is slowly cooled to 150-300 DEG C in the air. The structure grade of the network carbide is controlled within the 1.0 grade.

The embodiment of the invention provides a double-sided conduction cooling multi-sheet laser amplifier and a system. The amplifier comprises a laser head, a cavity and an external cold source, and thelaser head comprises a gain medium, a heat sink, a cooling metal, a first contact object and a second contact object. The gain medium and the heat sink are both sheet-shaped and are separately arranged in parallel at intervals, the cooling metal is arranged at the peripheries of the gain medium and the heat sink, and the cooling temperature is constant. The centers of the gain medium and the heatsink are coaxial, and the plane of the gain medium is vertical to the central axis. The edge of the gain medium is connected with the edge of the heat sink through the first contact object, and the edges of the two surfaces of the heat sink are connected with the inner wall of the cooling metal through the second contact object. The double-sided conduction cooling multi-slice laser amplifier andthe system provided by the embodiment of the invention have the advantages that the gain medium has no special requirements for gradual change, interval or gradient doping and the like, the cooling action process is simple, the structure is compact, and the heat dissipation effect is good, and the high-power output of a multi-slice laser is facilitated.

The invention belongs to the technical field of ferrous metallurgy, and particularly relates to an atmospheric corrosion resistant martensitic wear-resistant steel plate. The atmospheric corrosion resistant martensitic wear-resistant steel plate comprises the following components including, by mass, larger than or equal to 0.14wt% and smaller than or equal to 0.22wt% of C, larger than or equal to0.30wt% and smaller than or equal to 0.60wt% of Si, larger than or equal to 0.30wt% and smaller than or equal to 1.00wt% of Mn, larger than or equal to 0.010wt% and smaller than or equal to 0.020wt% of Ti, larger than or equal to 0.02wt% and smaller than or equal to 0.04wt% of Nb, larger than or equal to 0.50 wt% and smaller than or equal to 1.0wt% of Ni, larger than or equal to 0.20 wt% and smaller than or equal to 0.50wt% of Cu, larger than or equal to 3.4 wt% and smaller than or equal to 4.0wt% of Cr, larger than or equal to 0.0010 wt% and smaller than or equal to 0.0020wt% of B, larger than 0 and smaller than or equal to 0.003wt% of S, larger than 0 and smaller than or equal to 0.012wt% of P and the balance iron and other inevitable impurities, wherein the atmospheric corrosion resistant martensitic wear-resistant steel plate can solve the problems of hardness, plasticity, toughness, wear resistance and corrosion resistance of the steel plate.

The invention discloses a high-pressure sterilization type artificial feed production process applied to industrial silkworm breeding, which comprises the following steps: (1) raw material treatment: crushing raw materials, and mixing the crushed raw materials to obtain powder; (2) feed processing: mixing and stirring the powder and water, and performing high-pressure sterilization processing to obtain the feed; and (3) cooling the feed. A systematic and continuous production method is designed and comprises three coherent steps of raw material treatment, processing and feed cooling, uniformly mixed powder is obtained after raw material treatment, the powder and water are stirred and mixed, the feed is processed and cooled in a high-pressure sterilization mode, the purpose of large-scale, systematic and continuous feed production is achieved, and the production efficiency is improved. And the production efficiency is obviously improved. The high-pressure sterilization mode can achieve sterilization and disinfection effects on the feed, the content of bacteria on the surface of the feed is controlled, silkworms are easy to digest after eating the feed, and the illness probability is remarkably reduced.

The invention provides a direct air cooling method for shifted gas. High-temperature wet shifted gas is directly sent to air cooling fin tube bundles; shifted gas condensate is sent to the inlet of each fin tube through a circulation pump and a water spray pipe; and by utilizing the characteristic that high-frequency turbulent flow and water brought by high-speed air flow are far higher than the shifted gas in heat conductivity, the film coefficient of heat transfer of the inner wall of the air cooling fin tubes is greatly increased, thereby improving the air cooling effect of the shifted gas,greatly reducing consumption of water resources and power consumption of a fan, and guaranteeing the effect of directly cooling the shifted gas by using air.

The invention relates to the technical field of ultrasonic transducers, in particular to a cooling device and method for a fin type industrial magnetostrictive type ultrasonic transducer. The coolingdevice for the fin type industrial magnetostrictive type ultrasonic transducer comprises a transducer cavity, a wiring cavity, a coil winding, a magnetostrictive material and a vibrator block, whereinthe coil winding and the magnetostrictive material are integrally positioned inside the transducer cavity and the vibrator block is partially positioned in the transducer cavity; a transducer cavityhousing of the transducer cavity is a cylindrical structure with fins; one end of the cylindrical cavity is equipped with the vibrator block, and the other end of the cylindrical cavity is equipped with an upper cover plate, and the residual space inside is filled with quartz sand; and the free end of the magnetostrictive material is coated with a sound-absorbing material layer. The cooling deviceand method for the fin type industrial magnetostrictive type ultrasonic transducer disclosed by the invention avoids a leakage problem which possibly appears by adopting a cooling water or cooling liquid cooling way, reduces production and management cost, and ensures long-period stable work of the industrial ultrasonic transducer.