159results about How to "Lower outlet temperature" patented technology

A single-pipe cylinder type reformer of the invention includes a plurality of circular cylinders standing upright coaxially, a radiation cylinder coaxially arranged inside the plurality of circular cylinders, and a burner arranged at one end of the center of the radiation cylinder, and has a reforming catalyst layer obtained by packing with a reforming catalyst at least a first gas flow path closest to the burner among a plurality of gas flow paths divided by the plurality of circular cylinders and having annular cross-sections. A pre-heat layer formed on one end side (upstream) of the reforming catalyst layer packed with the reforming catalyst is packed with a metal packing. Helical dividing means are provided in the respective gas flow paths to extend in the axial direction of the circular cylinders. The helical dividing means helically divide a gas and makes it flow through the first gas flow path.

The invention relates to a process for the production of synthesis gas from a hydrocarbon feedstock, wherein the entire hydrocarbon feed is passed through a radiant furnace, heat exchanger reformer and autothermal reformer in a series arrangement, and in which effluent gas from the autothermal reformer is used as heat source for the reforming reactions occurring in the heat exchange reformer.

A gas turbine group is provided with at least one cooling apparatus for cooling the working medium before and/or during the compression. The cooling power of the cooling apparatus can be adjusted by suitable means. A controller controls the cooling power of the cooling apparatus as a function of a control deviation in the useful power of the gas turbine group. The cooling controller interacts with other controllers of the gas turbine group in such a way that the gas turbine group is itself always operated at least close to its full load operating state. In this context, it is preferable for the inlet guide vane row of the compressor to be maximally open, and for the hot-gas temperature on entry into the turbines to be controlled so that it is constantly at an upper limit value.

To provide an exhaust gas purifying system capable of forcibly regenerating DPF by efficiently raising the temperature of exhaust gas even when an exhaust gas temperature is very low at the time of low load and low engine speed such as an idling operation. In an exhaust purifying system (1) having an exhaust throttling valve (31) and a DPF (3) in an exhaust passage and having regeneration control means (P1) for regenerating the DPF (3), the regeneration control means (P1) is provided with an exhaust gas temperature detection means (P22), a fuel injection control means (P11), and an exhaust throttling control means (P12) and includes regeneration control for performing the exhaust gas temperature raising control through the multistage delay injection by the fuel injection control means (P11) and through the exhaust throttling of the exhaust throttling valve (31).

The invention provides a slagging-free type, low-energy consumption and multilevel differential temperature fluidized roasting system for crystallized aluminum salt and a method thereof. The system comprises a crystallized aluminum salt low-temperature roasting system, an aluminum oxide high-temperature finished product roasting system, a high-temperature aluminum oxide multilevel fluidized cooling and heat recovery system and a chimney. The method comprises the following steps of: reducing the outlet temperature of low-temperature roasting flue gas with large gas production rate by adopting a differential temperature multiple roasting method, so that sensible heat carried by the flue gas is greatly reduced; and carrying out reasonable cascade utilization on energy and converting fuel chemical energy inputted by a process system into effective heat of the system to a greatest extent. The slagging-free type and multilevel differential temperature fluidized roasting system has the remarkable advantages of strong adaptability to the content of attached water of the crystallized aluminum salt, good adjustment and stability, high product purity, low energy consumption, low investment, small floor area and the like.

The invention discloses a coke oven ascension pipe raw gas evaporative cooling device and a preparation method thereof. The device comprises a cooling pipe, a raw gas inlet flange and a raw gas outlet flange, wherein the raw gas inlet flange and the raw gas outlet flange are connected with the two ends of the cooling pipe respectively. The cooling pipe is sequentially composed of an inner sleeve, an outer sleeve, a heat preservation layer and a protection layer from inside to outside. Through holes are formed in the two ends of the side wall of the outer sleeve respectively. A water inlet steel pipe is installed on the through hole close to the raw gas inlet flange. A vapor outlet steel pipe is installed on the through hole close to the raw gas outlet flange. An annular expansion joint section is arranged at the portion, between the water inlet steel pipe and the vapor outlet steel pipe, of the outer sleeve. The high temperature structural strength and high temperature breakage resistant capacity of the cooling device are remarkably improved, the heat transfer behavior of the pipe wall of the inner sleeve of the cooling device is improved, the radial temperature distribution of the pipe wall is optimized, the efficient function coordination of multiple layers of materials is achieved, and the comprehensive use performance of the inner sleeve is improved; the aim of long-term efficient and stable running of the ascension pipe raw gas evaporative cooling device is finally achieved.

The invention belongs to the technical field of refrigerating and heat pumps and particularly relates to an ejection-absorbing hybrid refrigerating and heat pump unit and an operating method thereof. The unit comprises generators, a condenser, an evaporator, an absorber, a solution heat exchanger, a solution pump, a solution throttle valve, a coolant throttle valve, a steam generator and a gas ejector. By providing one or multiple steam generators, outlet temperature of a high-level drive heat source of the unit can be decreased, utilization efficiency of heat and hierarchy of coolant steam pressure are increased, and the gas ejector can be conveniently set according to different pressure level; high-temperature high-pressure steam generated by the steam generator allow coolant steam to be ejected from outlets of the generators to the condenser, thereby decreasing the high-level heat source temperature of the generators; the coolant steam from an outlet of the evaporator can also be ejected to the absorber so as to enhance absorbing pressure of the absorber and reduce the size of the absorber; the coolant steam from the outlet of the evaporator can also be ejected to the condenser to increase refrigerating and heating quantity of the unit and improve comprehensive thermal performance of the unit.

Provided is a controller for use with a gas turbine engine, which ensures a stable combustion regardless of the deterioration of the catalyst and elevated characteristics of the exhaust gas. The controller 6 is used in the engine which comprises a combustor 2 for combusting a mixture of compressed air from a compressor 1 and a fuel under the existence of catalyst, the combustor having a catalytic combustion unit 21 bearing the catalyst and a pre-burner 7 provided on an upstream side of the catalytic combustion unit with respect to a flow of the compressed air for supplying and combusting a pre-heating fuel PF with the compressed air CA. The controller comprises a memory 6c for memorizing an initial temperature difference D between inlet and outlet temperatures t1, t2 measured at inlet and outlet of the catalytic combustion unit with non-deteriorated catalyst accommodated therein, and a pre-burner control for calculating a present temperature difference between the inlet and outlet temperatures measured in an operation of the gas turbine engine and controlling an amount of the fuel to be supplied to the pre-burner according to a deterioration Δd of the catalyst which is provided by a difference between the initial and present temperature differences D and d.

The present invention provides a deep fat fryer separating the flue from the splash back panel and with a flue opening directed not upwardly, but rearwardly from the flue. By arranging the flue opening on the rear wall, the opening is protected from grease fallback (e.g., dripping from an overhead exhaust hood) or other foreign objects falling into the opening. The splash back panel further provides a seamless curved design that is easy to clean and also insulated from the heat of the flue. A baffle installed within the flue allows the combustion products to mix, cool, and slow upon exiting the baffle opening and entering the atmosphere reducing the exit temperature and also reducing the heating of the splash back panel.

The invention relates to a high thermal conductivity silica brick for coke oven and a preparation method thereof. The high thermal conductivity silica brick for a coke oven comprises the following components by weight: 68.0%-82.0% of natural silica particles, 13.0%-26.0% of natural silica powder, 0.5%-2.0% of an additive containing dispersant, 1.5%-5.0% of siliceous non oxide, 1.0%-3.0% of a mineralization agent, and an additional binder in the weight 1.5%-3.0% of the total weight of the previous materials. The additive comprises a dispersant carboxymethyl cellulose (CMC) with granularity less than 0.088 mm and siliceous non-oxide Si with granularity less than 0.043 mm, wherein the content of Si is greater than 96 wt.%. The silica brick provided by the invention has high thermal conductivity and keeps other comprehensive excellent performances of silica brick, and can satisfy the demands of coke oven for longevity, energy saving and high efficient production.

The invention relates to a fuel chemical chain hydrogen production system and method, the fuel chemical chain hydrogen production system comprises two identical chemical chain combustion reactors, each chemical chain combustion reactor comprises an outer pipe and an inner pipe coaxially arranged with the outer pipe, the inner pipe is filled with a first oxygen carrier, and the interlayer between the outer pipe and the inner pipe is filled with a second oxygen carrier. The upper end of the inner pipe is connected with a steam introduction pipe and a fuel introduction pipe, and the lower end ofthe inner pipe is connected with a gas outlet pipe. When steam introduced into the first chemical chain combustion reactor and a reduced oxygen carrier carry out the oxidation reaction of the oxygen carrier, a fuel introduced into the second chemical chain combustion reactor and an oxidized oxygen carrier carry out reduction reaction of the oxygen carrier. The fuel chemical chain hydrogen production system has simple process, compact reactor and easy miniaturization, and can efficiently produce pure hydrogen from a gaseous or liquid fuel.

The invention discloses a three-wheel pressure-boosting refrigerating and liquid cooling composite thermal energy managing system, belonging to the field of airplane airborne laser equipment, relating to an improvement on a composite environmental control/liquid cooling thermal energy managing system. The invention is composed of a three-wheel high pressure dehydrating refrigerating assembly, a liquid cooling system and a fuel system, wherein the high pressure dehydrating refrigerating assembly and the liquid cooling system are coupled by an air-liquid heat exchanger; said air-liquid heat exchanger is on downstream of the turbine in the high pressure dehydrating refrigerating assembly, and between an expansion tank and an electric heater in the liquid cooling system; the liquid cooling system and a fuel system are coupled by a liquid- fuel heat exchanger; said liquid- fuel heat exchanger is between an aircraft skin heat radiator and sov shutoff valve in the liquid cooling system. The invention lowers the compensation loss for the cooling system, and raises dehydration and cooling effect for the refrigerating assembly, and effectively lowers influence on flight performance of the aircraft, and raises the fuel efficiency of the aircraft such that the economy of the aircraft is good.

The invention relates to an integrated gas retort integrating heating of a heat carrier and dry distillation of materials into the same one dry distillation unit. The integrated gas retort is characterized in that smoke gas is used as dry distillation heat carrier for indirectly heating materials; the gas retort is formed by combining a plurality of dry distillation sub units. Each dry distillation sub unit is independent, one combustion chamber corresponds to one dry distillation chamber to form one dry distillation sub unit, the upper parts of retorts comprising a plurality of dry distillation sub units are communicated, the two dry distillation sub units are separated by a smoke gas chamber, and the lower parts share one water seal tank and a tar exhaust device. The actual daily capacity of the gas retort can achieve more than 6000. The integrated gas retort is applicable to low-temperature dry distillation oil refining of materials oil sand, oil shale, coal and the like. The integrated gas retort is applicable to dry distillation and oil refining of small-particle materials, as well as various qualities of materials with low gas content, low fixed carbon content and high moisture content, and the oil recovery rate of the gas retort can achieve about 90%.

A heat exchanger and a circulating fluidized bed boiler with a heat exchanger including a first fluidized bed heat exchange chamber and a second fluidized bed heat exchange chamber, arranged in connection with a furnace of the circulating fluidized bed boiler, a first inlet channel for introducing hot solids from a particle separator of the external circulation of the circulating fluidized bed boiler into the first heat exchange chamber, a second inlet channel for introducing solids to the second heat exchange chamber, a first discharge for removing a first portion of the cooled solids from the first heat exchange chamber to the second inlet channel and a second discharge for removing cooled solids from the second heat exchange chamber to the furnace, the heat exchange chamber including an inlet for introducing hot solids directly from the internal circulation of the furnace to the second heat exchange chamber. The heat exchanger also preferably includes a third discharge for removing a second portion of the cooled solids from the first heat exchange chamber directly to the furnace.

A home cooking appliance includes a housing, a cooking compartment in the housing, a flue in the housing and in fluid communication with the cooking compartment for exhausting flue gases from the cooking compartment, an exhaust outlet for exhausting the flue gases from the housing, and a flue boundary connecting the flue and the exhaust outlet, the flue boundary separating flue gases from cooling air flowing through the housing and preventing dilution of flue gases with cooling air. The housing includes a cooling rough-in box having a cooling air flow channel for cooling the rear wall of the flue boundary. The cooling rough-in box includes an opening permitting the cooling air to be drawn into the cooling air flow channel from an exterior of the housing by convection owing to heat on the rear wall of the flue boundary.

The invention provides a refrigeration air-cooling unit and a control method thereof. The unit comprises a steam compression circulation loop formed by the connection of a compressor (1), a condensing device (2), an expansion valve (3) and an evaporator (4) and further comprises a natural cooling circulation loop formed by the connection of a refrigerant pump (5), the condensing device (2) and the evaporator (4), wherein water is used as a refrigerating medium in the evaporator (4); and the condensing device (2) comprises a plurality of condensers (21) arranged in parallel, and the natural cooling circulation loop comprises at least one of the condensers (21). Through the refrigeration air-cooling unit and the control method thereof, the condensing area of natural cooling circulation can be effectively reduced, the outlet temperature of the condensing device is accordingly lowered, the evaporator is effectively prevented from being damaged, and the purposes and effects of preventing the freezing of the evaporator and keeping refrigerating efficiency are simultaneously realized.

The invention relates to a biomass semi-gasification heating system. The biomass semi-gasification heating system comprises a biomass semi-gasification furnace, an energy-saving water tank, a heat exchanger, a chimney and an air pre-heating pipe. The biomass semi-gasification heating system organically combines the biomass semi-gasification furnace, the energy-saving water tank, the chimney, the air pre-heating pipe and the indoor heat exchanger together, the combustion and reverse combustion technology is fully used in the design of the biomass semi-gasification furnace, a water cooling wall forms a hearth, the design concept that the air pre-heating pipe conveys the needed air is adopted, the energy-saving water tank is designed into four areas, the structure that water cooling pipes are communicated with the related areas is adopted, and the design of the whole system accords with the concept of energy conservation, so that the biomass semi-gasification heating system is not only low in production, manufacturing, use and maintenance expense, but also convenient to popularize in rural areas. The biomass semi-gasification heating system overcomes the defects of a common heating furnace and a common biomass gasification heating furnace, and improves the effective use efficiency of biomass energy.

The invention provides a high solid content coal tar suspended bed hydrogenation system and a high solid content coal tar suspended bed hydrogenation technology. The system comprises a hydrogen supply unit; a catalyst supply unit; a coal tar segmentation unit used for segmenting high solid content coal tar into a first light component, hydrogen-donor solvent pre-solution and a first heavy component; a hydrogen-donor solvent production unit connected with the coal tar segmentation unit and the hydrogen supply unit respectively; and a catalytic hydrogenation reaction unit connected with the coal tar segmentation unit, the hydrogen-donor solvent production unit and the catalyst supply unit respectively. According to the system and the technology provided by the invention, hydrogenation depth can be significantly improved, liquefied oil productivity is increased, wall-phase coke can be effectively avoided, total quantity of coke is reduced, long-term and stable operation of the device is achieved, and gas-phase productivity can be effectively reduced and the load of a feeding heating furnace is reduced.

The invention provides a separation and recycle system for water-containing organic waste liquid and organic solvents as well as a recycle method, wherein the separation and recycle system consists ofa distillation system and a pervaporation membrane separation system through process pipeline connection. A packed tower is adopted as a rectifying tower, and the material inlet of the packed tower is arranged in the center of a packed tower liquid distributor. A damping structure is arranged in the pervaporation membrane unit of the pervaporation membrane separation system. The separation and recycle system provided by the invention is suitable for online dehydration and recycle of multiple kinds of water-containing and two or more than two azeotropic or non-azeotropic organic solvents as well as for separation and reuse of the organic solvents.