45results about How to "Reduce cooling consumption" patented technology

The invention relates to a method for drying a hydrogen chloride gas, which comprises: allowing the hydrogen chloride gas containing water to rise from the bottom part of a drying spray tower along the inner cavity of the drying spray tower; spraying silicon tetrachloride in the inner cavity of the drying spray tower; performing the spray treatment of the hydrogen chloride gas; allowing the sprayed hydrogen chloride gas and the silicon tetrachloride mixed with the hydrogen chloride gas to enter a condenser from the top part of the drying spray tower to perform condensation treatment; and discharging the dried hydrogen chloride gas from the condenser. The silicon tetrachloride decomposes upon the contact with water to form the hydrogen chloride gas and silicon dioxide. The drying of the HCl by using the silicon tetrachloride has the advantages that: the generated HCl can be reused; the water content of the hydrogen chloride gas is reduced to below 50ppm; the conversion rate of silicon powder is improved; the production cost is reduced; the maximum temperature requirement by equipment for operation is 0 DEG C; the cold energy consumption is low; the equipment investment is small; the energy consumption is reduced; and the environmental pollution is relieved.

The invention includes an acidic gas removal process used for pulverized coal gasification. The process is characterized by including the following steps: mixing synthesis gas, cyclic flash steam and antifreeze methanol, conducting cooling, removing a condensed fluid, sending the separated gas phase to a H2S absorption tower and a CO2 absorption tower in sequence, removing acidic gas in the synthetic gas to obtain the purified gas, and discharging the purified gas to the outside; after the synthetic gas is washed, sending gas-rich methanol to corresponding regeneration workshop sections of a medium-pressure flash column, a reabsorber and a thermal regeneration column respectively for regeneration; after the regeneration, sending gas-poor methanol, full-lean solution, semi-lean solution, H2S-rich methanol and CO2-rich methanol to corresponding workshop sections respectively for use, and discharging redundant methanol to the outside.

The invention relates to a fresh air handling unit with internal circulation and heat recovery. The fresh air handling unit comprises a shell, a first plate heat exchanger, a second plate heat exchanger, a compressor, a water-cooling condenser and an evaporator, the first plate heat exchanger and the second plate heat exchanger are arranged side by side, a first partitioning plate is arranged between the upper side of the right end of the first plate heat exchanger and the top wall of the shell, a second partitioning plate is arranged between the connecting position of the first plate heat exchanger and the second plate heat exchanger and the top wall of the shell, a third partitioning plate is arranged between the upper side of the left end of the second plate heat exchanger and the top wall of the shell, a fourth partitioning plate is arranged between the lower side of the left end of the second plate heat exchanger and the bottom wall of the shell, and a fifth partitioning plate is arranged between the lower side of the right end of the first plate heat exchanger and the right wall of the shell. A fresh air port and an air delivery port are formed in the top wall of the shell, an air-returning port and an air-discharging port are formed in the left side wall and right side wall of the shell, and the evaporator is arranged on the lower side of the second plate heat exchanger side by side. The fresh air handling unit has the advantages of being simple in structure and high in heat recovery rate and energy efficiency ratio, and can achieve intelligent control and low-energy-consumption operation.

A process for preparing cyanuramide and ammonium dicarbonate includes preheating ammonia gas as carrier, introducing it to fluidized-bed reactor, pumping urea in said reactor, high-temp catalytic decomposing to generaet the reactive gas containing cyanuramide, CO2 and ammonia, filtering, cooling to educe out cyanuramide, washing the tail gas by ammonia water, coding, carbonizing to obtain cabonized ammonia water, preparing ammonium dicarbonate, mixing said cyanuramide with its mother liquid, thermal dissolving, filtering, cooling for crystallizing, centrifugal separating, drying and pulverizing to obtain finished cyanuramide.

The invention provides a deep purification method of polycrystalline silicon reduction exhaust gas, comprising: performing multiple stages of cooling treatment successively on reduction exhaust gas soas to discharge gas-liquid mixture; performing gas-liquid separation on the gas-liquid mixture, using cold capacity of separated mixed gas to cool the reduction exhaust gas; using chlorosilane barrenliquor that runs from top to bottom inside a two-stage hydrogen chloride absorbing column to absorb, in the column, hydrogen chloride in the mixed gas with the cold capacity already utilized; stripping, in a hydrogen chloride stripper, chlorosilane rich liquor discharged from the bottom of the hydrogen chloride absorbing column, and discharging fluorosilicon barren liquor from the bottom and light components from the top; using the cold capacity of chlorosilane rich liquor, discharged from the bottom of the two-stage hydrogen chloride absorbing column, to cool the chlorosilane barren liquor discharged from the bottom of the hydrogen chloride stripper. Correspondingly, a deep purification system is provided. The deep purification method and system have the advantages that the quality of recycled hydrogen meets the corresponding requirements of electronic polycrystalline silicone, extra cold consumption is decreased, and load of the absorbing column is relieved.

The invention discloses a display refrigerator with a transparent display screen, which solves the technical problem of high integral energy consumption in the existing display refrigerator with the transparent display screen. The display refrigerator comprises a transparent door body, wherein the transparent door body at least consists of an outer transparent layer and an inner transparent layer; the outer transparent layer is kept away from a refrigerator box, and the inner transparent layer corresponds to the outer transparent layer; a cavity is formed between the outer transparent layer and the inner transparent layer; the transparent display screen is arranged in the cavity; a light source is arranged at the side of the transparent display screen, and the light emitting direction of the light source faces the refrigerator box. The display refrigerator has the advantages that the light source of the display objects in the refrigerator and the light source of the transparent display screen can be provided by only one group of light source, so that the integral energy consumption of the display refrigerator with the transparent display screen is decreased, the heat emitted by the light source in the refrigerator box is reduced, and the consumption of cold is reduced in the refrigerating circulation design; the light source in the transparent door body can provide a heat source for removing fog and dew of the door body, so that the condensate of the transparent door body of the refrigerator caused by cold and heat temperature difference of the interior and exterior of the refrigerator box is effectively reduced.

The invention provides a solution humidity-regulation air treatment system utilizing geothermal hot spring resources and a treatment method for performing dehumidification and humidification on indoor air. According to the solution humidity-regulation air treatment system, the geothermal hot spring resources are directly utilized as a heat source to achieve regeneration of a humidity regulating solution and accordingly conversion energy sources such as electric energy are avoided so as to achieve energy conservation and emission reduction; meanwhile humidity regulating treatment and temperature regulating treatment on treated air are separated from each other through structural optimization and accordingly refrigeration coefficients of a surface air cooler can be improved, the efficiency of the temperature regulating treatment and the humidity regulating treatment can be improved, the energy consumption of the surface air cooler can be reduced, and energy sources can be saved; dual functions of cooling dehumidification and warming humidification can be achieved and the solution humidity-regulation air treatment system can be suitable for summer and winter air conditioning just through simple conversion control and accordingly the problem that solution humidity-regulation air conditioning systems are single in function in the prior art is solved and the market application prospect of the solution humidity-regulation air treatment system is extended.

The invention discloses a refrigeration and cryopreservation device for preserving stem cells. The hanger comprises a supporting seat and a hook rod, a placement box is arranged in the supporting seat; moving wheels are arranged at the lower end of the supporting base, a device body is arranged at the upper end of the supporting base, and an inner shell and liquid nitrogen are arranged in the device body; the liquid nitrogen is arranged between the inner shell and the device body, a controller is arranged on the outer side of the device body, a temperature sensor is arranged on the inner sidewall of the device body, and an early warning signal lamp is arranged at the upper end of the device body. In the refrigeration and cryopreservation device, hanging notches and classification labels are distributed on the supporting plate frame in an annular array mode, wherein hanging notches can be used for hanging and fixing the storage rack; therefore, according to information of stem cell cryopreservation samples stored in different storage racks, information remarks can be made on corresponding classification labels, so that different types of stem cell cryopreservation samples are easily distinguished; in addition, a second thermal insulation layer and a third thermal insulation layer are arranged, and under the action of the second thermal insulation layer and the third thermal insulation layer, cold consumption of liquid nitrogen is reduced.

The invention provides a cross-data center energy-saving load balancing method based on regional temperature differentiation. The method comprises the steps that a cooling energy consumption equationcaused by heat conduction is determined by fitting; an energy consumption equation of each IT device operating normally in a data center is determined; a total energy consumption equation of the datacenter is determined; a scheduling vector of a cloud service request is defined; a workload dispatched to the data center is determined; a tail delay constraint based on a service level protocol is determined; a delay probability of each cloud service request is calculated; and a temperature-aware cloud service scheduling architecture is constructed. The cross-data center energy-saving load balancing method based on the regional temperature differentiation has the advantages that the total cooling consumption of the data center is reduced under the condition of ensuring that the cloud servicesatisfies the tail delay requirement of the service level protocol, and the cloud service can still satisfy the tail delay constraint based on the service level protocol at the same time.

The invention belongs to the field of oil refining and chemical engineering, and particularly discloses a light hydrocarbon recovery method and device. The method is simple in process, mild in operation conditions and low in cold energy consumption. Separation and recovery of light hydrocarbon in the hydrocracking process can be realized by utilizing less equipment, and especially, efficient separation and recovery of ethane, propane and C4 component can be achieved, wherein the ethane recovery rate reaches 97 wt% or above, the propane recovery rate reaches 98 wt% or above, the content of methane in recovered ethane is not larger than 1 vol%, and the content of ethane in recovered propane is not larger than 300 ppmv.

The invention discloses a thermal conducting water-stop slurry material and preparation and application thereof. The thermal conducting water-stop slurry comprises the following raw materials in percentage by weight: 0.5-20% of system stabilizing agents, 5-40% of heat conducting agents, 5-50% of filling materials, 0.5-5% of fluidizing agents and 35-65% of water. The thermal conducting water-stop slurry has good thermal conduction performance, excellent water-stop performance and high stability, can be free of segregation and weeping in a long time and can be used as the thermal conducting working medium in the construction methods of freezing the casing box through shield break in and break out and stopping water.

The invention belongs to the technical field of coal chemical industry and relates to a coal gasification black water treatment system and a treatment process. The treatment comprises a deoxygenated water heater, a vortex separator, a hydraulic deoxygenated water pump, a hydraulic turbine pump, a separation tank, a normal-pressure gas cooler and a vacuum gas cooler, wherein the deoxygenated waterheater is connected with the vortex separator; the top end of the vortex separator is connected with the separation tank through the hydraulic turbine pump; and the bottom end of the vortex separatoris connected with the separation tank and the separator; heat and kinetic energy in the black water are recycled separately, the heat is recycled into a carbon washing tower, and the kinetic energy serves as a part of power source of the hydraulic deoxygenated water pump; the low-temperature black water with heat recovered is further separated after being subjected to coarse separation; and the separated saturated steam can be recycled as process gas. According to the invention, heat, kinetic energy and steam in the black water can be recycled, so that the cold consumption and kinetic consumption of the black water of the system can be reduced, the operation and maintenance workload is low, the process flow is short, the equipment is less, and the investment is small.

The invention discloses a power distribution cabinet capable of supplying air from the bottom and a heat dissipation method. The power distribution cabinet comprises a base structure laid in a machine room and a cabinet body structure installed at the top of the base structure. The base structure comprises keels laid on the ground, and the keels are longitudinally arranged. The keels are mainly used for bearing load, and the keels are light steel keels which are light in weight and sufficient in supporting capacity. A plurality of height adjusting mechanisms are mounted at the bottoms of the keels; through the height adjusting mechanisms, horizontal supporting of the keels on the uneven ground can be achieved; vertical rods are welded at the upper ends of the keels; and heat insulation cotton is laid between the adjacent keels in the transverse direction. The device can reduce the cold air distribution loss, and enables the cold air to effectively act on each power distribution cabinet.

The invention relates to an energy-saving acidic gas re-absorption technology matching with coal water slurry gasification. The technology comprises the following steps: CO2-rich methanol enters a CO2-rich methanol stripping segment and undergoes reduced pressure flash evaporation, first nitrogen flow is also stripped, and separated first tail gas is sent to a gas ejector; first flow of semi-lean methanol enters a tail gas re-absorption segment; second flow of semi-lean methanol enters a quasi-lean solution generation segment upper segment and undergoes reduced pressure flash evaporation, a separated gas phase is extracted by the gas ejector, and a methanol solution enters a quasi-lean solution generation segment lower segment and undergoes flash evaporation; and a gas phase obtained after the flash evaporation enters the quasi-lean solution generation segment upper segment, a quasi-lean solution enters the tail gas re-absorption segment and undergoes flash evaporation and stripping, the released gas phase is washed by the first flow of semi-lean methanol, tail gas is discharged, a liquid phase is extracted, enters an N2 stripping segment and is stripped to obtain rich methanol which is sent to downstream, and the obtained gas phase enters the tail gas re-absorption segment and is washed by the first flow of semi-lean methanol.