10 results about "Water jacket" patented technology

A method for the high pressure die casting of an engine block assembly having at least one cast in place cylinder bore in the engine block and a closed head deck surface, and the resultant engine block are disclosed. This closed deck high pressure die cast engine block assembly will preferably have at least two cast in place cylinder bores in the engine block formed by using a composite core of salt core material supported by at least one cylinder bore to be cast in place. The cylinder bores have a lower outer surface preferably defining at least one surface area that interfaces with the engine block during casting such that the at least one cylinder is cast in place in the engine block. An engine block water jacket—as defined by the salt core portion of the composite core—will preferably provide an open passage between each cylinder bore such that water may flow around and entire outer circumference of the upper outer surface of the cylinder bores. This provides better and more uniform cylinder wall cooling, reducing thermal hot spotting and bore wall distortion.

A multiple cylinder engine for a small watercraft is provided with a separately structured cylinder head and cylinder head cover which cooperate when fastened together to define a cylinder head water jacket with chambers for cooling each cylinder in the engine. A longitudinally oriented coolant passage runs past and communicates with each water jacket chamber to facilitate flow of cooling water out of each chamber. In an embodiment in which the cylinders are inclined, the coolant passage is positioned in a higher location than the water jacket chambers.

The invention relates to an aerogenerator machine base. An aerogenerator comprising a stator core and a rotor is arranged in the aerogenerator machine base. The aerogenerator machine base is characterized by comprising an inner interlayer and an outer interlayer, a plurality of septa which bring the heat from an inner layer to an outer layer are arranged in both the inner interlayer and the outer interlayer to form a water jacket structure, circulating water is introduced into the inner interlayer, and wind is draught into the outer interlayer. The aerogenerator machine base integrates the functions of a water cooler and the machine base, saves a bulky cooler, and reduces the cost; simultaneously, the cooling effect is better than that of the prior equipment; besides, the center height of the aerogenerator is reduced, the excircle of the stator core is reduced, and the using level of silicon steel sheets is saved.

The invention discloses a roasting method for laterite-nickel ore pellets. The method comprises the steps that (1) during pellet preheating, the pellets are fed into preheating equipment for preheating, wherein the temperature of the pellets is lower than 400 DEG C after preheating; (2) during composite roasting with an indirect heating tank-type furnace, the preheated pellets are fed into the indirect heating tank-type furnace for composite roasting, wherein the roasting temperature is 900-1100 DEG C, and the roasting reaction time is 30-90min; and (3) during material discharge, high-temperature roasted pellets obtained through the tank-type furnace roasting are fed into a cooling tank with a water jacket under the tank-type furnace, then cooled till the temperature is lower than 200 DEGC and finally discharged from a discharging machine. The method disclosed by the invention has the beneficial effects that a pellet preheating-indirect heating roasting furnace composite roasting system is used, so a reaction atmosphere needed by composite roasting of laterite-nickel ore can be controlled effectively, residual heat is fully used, and a chlorinating agent is recycled. In this way,production cost can be reduced and the application prospect is broad.

The invention discloses a method for preparing a feeding nozzle for a continuous high-purity alumina melting furnace. The continuous high-purity alumina melting furnace consists of a cooling water jacket furnace shell 1, a carbon fiber heat insulation material 2, a ceramic inner container seat 3, graphite heating elements 4, a ceramic inner container 5, the feeding nozzle 6, a furnace body upper cover 7, an upper cooling cavity 8, a hearth 9, a lower cooling cavity 10 and a furnace body lower cover 11, wherein a cooling water jacket is adopted in the cooling water jacket furnace shell; and the feeding nozzle for the continuous high-purity alumina melting furnace is made of a composite material prepared from reactive sintered aluminum nitride and hafnium boride and used at the temperature of between 1,600 and 2,200 DEG C in the atmosphere of nitrogen. The feeding nozzle for the continuous high-purity alumina melting furnace have the advantages of uniform microstructure, high strength, high overall reliability, high oxidation resistance, high-purity alumina pollution prevention, capability of being used for long time at the temperature of 2,200 DEG C, continuous production, high production efficiency and the like.

The invention discloses a removing device and a removing method for particulate pollutants generated by combustion of biomass fuel. The removing device comprises a chimney, a wet-type electric dust remover, a smoke condenser, a wet-type ash remover, a spiral ash remover, a combustion chamber and a heating furnace shell. The wet-type electric dust remover is arranged in the chimney. The smoke condenser sleeves the chimney. The wet-type ash remover is arranged at the lower end of the chimney. The smoke condenser is connected with the upper end of the spiral ash remover. The combustion chamber and the spiral ash remover are arranged in the heating furnace shell. A feed port communicated with the inside and the outside of the heating furnace shell is arranged on the combustion chamber. Smoke contains a large quantity of steam after the biomass fuel combusts, the steam can be condensed to form a thin water film on the surface of a precipitation pole when the temperature of the smoke continues dropping, and a cooling water jacket is arranged on the outer portion of the precipitation pole, so that exhaust smoke temperature is reduced, and heat of the smoke is recycled; condensed water generated by condensation serves as a water source of the wet-type electric dust remover, so that a water adding device, a water spraying device and the like are omitted, and water pollution is reduced.

The invention discloses a steelmaking continuous casting cutting torch with good cooling effect on the cutting nozzle, high cutting quality, fast cutting speed, low energy consumption, long service life, simple structure and small volume. It includes a torch body with an air distribution seat, a cutting nozzle located in the air distribution seat, and a water jacket on the outer wall of the air distribution seat. The cutting nozzle includes a core rod, a core seat connected with the core rod and its surrounding wall The core head is provided with several grooves, and the nozzle core sleeve is matched with the core head veneer. The core head is composed of a cylindrical section and a circular platform section. Several gas holes and preheating oxygen holes are respectively provided on the core seat, corresponding to several gas mixing holes connected to the corresponding gas holes and preheating oxygen holes. There is a high pressure oxygen hole composed of a frustum-shaped converging section, a cylindrical expansion section and an accelerating section.

The invention discloses a multi-return-trip cooking and heating stove, which comprises a stove body, a fuel cabin, a high-temperature combustion chamber, a fire hole, a high-temperature smoke gas heating cavity and a flue, wherein the fuel cabin is arranged in the stove body; the high-temperature combustion chamber is communicated with the fuel cabin through a flame passage; the fire hole is formed in the upper end of the high-temperature combustion chamber; the high-temperature smoke gas heating cavity is positioned between the fire hole and the high-temperature combustion chamber; and the flue is communicated with the high-temperature smoke gas heating cavity. The multi-return-trip cooking and heating stove has the advantages that a hearth is divided into the fuel cabin for filling fuel and the high-temperature combustion chamber communicated with the fuel cabin through the flame passage; the fuel cabin stores the fuel; the combusting flame and the generated high-temperature smoke gas enter the high-temperature combustion chamber through the flame passage, upwards pass through a combustion device to be sufficiently gasified, and then enter the high-temperature smoke gas heating cavity to realize the heat supply on a cooking tool; meanwhile, high-temperature flame and high-temperature gas which return after impacting the bottom of the cooking tool pass through a high-temperature smoke gas return passage and then enter the flue; the sufficient heat exchange is performed by the return heat, a first water jacket and a second water jacket; and the temperature rise of heating water is fast.

The invention discloses a magnesium steam crystallization waste heat utilization device for recycled magnesium smelting. The magnesium steam crystallization waste heat utilization device comprises a vertical tank. A magnesium crystallization barrel is arranged on the vertical tank. An airtight pressure-bearing water jacket is coaxially arranged around the magnesium crystallization barrel in the circumferential direction. The inner diameter of the airtight pressure-bearing water jacket is greater than the outer diameter of the magnesium crystallization barrel. The airtight pressure-bearing water jacket is composed of a steam section and a water containing section from top to bottom. The steam section communicates with the water containing section. The upper end of the steam section is provided with a steam outlet pipe. An electromagnetic steam valve is mounted on the steam outlet pipe. The upper end of the water containing section is provided with a water inlet pipe. A first electromagnetic water valve is mounted on the water inlet pipe. Through the arrangement of the airtight pressure-bearing water jacket and coordination of the electromagnetic steam valve, the first electromagnetic water valve and a second electromagnetic water valve, the two cooling effects of cooling water-steam and cooling water-hot water are achieved, effective utilization of magnesium crystallization waste heat is realized, and the utilization efficiency of energy sources is improved. Meanwhile, facilities such as an original cooling tower are omitted. The building cost and operation cost are lowered, and water resources are saved.