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245results about How to "Reduce supplementation" patented technology

Constant-temperature, constant-humidity and constant-cleanliness silent indoor air system

The invention provides a constant-temperature, constant-humidity and constant-cleanliness silent indoor air system, belongs to the field of indoor intelligent adjustment, and relates to multiple techniques including indoor air pressure control, indoor air purification, an indoor central dedusting system, supercharging and compensation functions for interlayers of double windows and double doors, an outdoor haze isolating system, an indoor air internal-circulation cleaning method, air heat exchange, air heating, refrigeration, dehumidification and the like. According to the constant-temperature, constant-humidity and constant-cleanliness silent indoor air system, the pressure of fresh air is made positive through the interlayers of the double doors and the double windows, the air pressure in the interlayers of the double doors and the double windows is made higher than outdoor air pressure, and outdoor air is prevented from invading indoor air; a small primary-efficiency, medium-efficiency and high-efficiency filtering system is used for filtration, various types of automatic adjustment and control including heating, refrigerating, dehumidifying and the like are conducted on air, pollutant dust generated indoors is removed through the central dedusting system, and the constant-temperature, constant-humidity and constant-cleanliness silent indoor air system is an omnidirectional intelligent air control system.
Owner:DALIAN BAOGUANG ENERGY SAVING AIR CONDITIONING EQUIP

Method and device for recycling saturated dry gas of refinery plant by adopting shallow cold oil absorption technology

The invention relates to the field of dry gas treatment, the invention discloses a method and a device for recycling a saturated dry gas of a refinery plant by adopting a shallow cold oil absorption technology, the method comprises the following steps: sequentially compressing the saturated dry gas, cooling the saturated dry gas, and feeding the saturated dry gas into a C4 absorption tower for treatment, and respectively sending an obtained gas phase and an obtained liquid phase into a gasoline absorption tower and a C4 desorption tower; recovering a gas phase obtained by treating in the C4 desorption tower to serve as a C2 concentrated gas product, allowing most of an obtained liquid phase to be returned to the C4 absorption tower for recycling, and sending a small part of the obtained liquid phase to a gasoline stabilization tower; and sending the liquid phase treated by the gasoline absorption tower to the gasoline stabilization tower for treatment, allowing most of the obtained liquid phase to be returned to the gasoline absorption tower for recycling and the small part of the obtained liquid phase to serve as an extraction gasoline product, performing condensation and gas-liquid separation treatment in turn on the gas phase obtained by processing in the gasoline stabilization tower, respectively returning the obtained gas phase and the obtained liquid phase to the inlet ofa compressor, and respectively sending the obtained gas phase and the obtained liquid phase to the gasoline stabilization tower and the C4 absorption tower for treatment. The method disclosed by theinvention has the advantages that the material consumption is low, the process is simple, the investment is small, and the recovery rate of the C2 and C3 is high.
Owner:CHINA PETROLEUM & CHEM CORP +1

Device and technology for wet desulfurization and denitrification of flue gas of coal-fired boiler and treatment of wastewater

The invention discloses a device and technology for wet desulfurization and denitrification of flue gas of a coal-fired boiler and treatment of wastewater .The technological process includes the steps that the flue gas enters a wastewater evaporative cooling stage through a draught fan outlet to be cooled and then enters an ozonation stage, the flue gas is fully mixed with ozone to be oxidized and then enters a supergravity device through a supergravity desulfurization and denitrification device inlet, the flue gas is subjected to forcible absorption with desulfurization and denitrification absorption liquid in a packed bed on a rotor, and finally the flue gas is demisted by a demister and then discharged through a flue gas outlet of the supergravity device .Replacement absorbent slurry is subjected to oxidation and denitrification treatment in sequence and then returned to the evaporative cooling stage to perform spraying cooling on the flue gas .By means of the device and the technology, desulfurization and denitrification efficiency is improved, and meanwhile water consumption is low; wastewater generated in desulfurization and denitrification is subjected to innocent treatment, sulfate is collected, and thus the coal-fired flue gas can meet stricter discharge standards.
Owner:ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH +1

Electric power plant cooling system for enhancing cooling efficiency by utilizing residual heat refrigeration manner

The invention relates to a power plant cooling system which improves the cooling efficiency by a residual heat refrigeration way, in particular to a cooling system which is used for the power plant, carries out the refrigeration by the residual heat of a steam turbine and utilizes the prepared cold water to cool the circular cooling water of the steam turbine further. The cooling system comprises a steam condensed water circulation consisting of a steam turbine, a steam condenser, a condensed water circulation pump and a combustion boiler, and a steam cooled water circulation consisting of a steam condenser, a cooling tower and a cooled water circulation pump. The cooling system is characterized in that a lithium bromide refrigeration unit is added; a high pressure generator of the lithium bromide refrigeration unit is arranged between the steam turbine and the steam condenser so as to lead the steam to become the heat source of the unit; the unit also comprises a refrigerant water tank which can store the cold energy; furthermore, the refrigerant water tank is connected with all air conditioners of the central air conditioning by pipelines; and the refrigerant water tank is arranged between the steam condenser and the cooling water circulation pump so that the refrigerant water is used for supplying the coldness to the central air conditioning or further cooling the circular cooling water of the steam turbine. The cooling system solves the problem that the residual heat of the power plant is cooled and wasted and has the advantages of high cooling efficiency, saving energy, being capable of supplying the cold source for the central air conditioning and the like.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Automobile fuel tank

The invention discloses an automobile fuel tank which is low in cost. An upper tank body and a lower tank body are connected firmly and stably. The occupied vehicle interior space is small after a fuel pump and a turning-over valve are installed. The fuel tank comprises the upper tank body and the lower tank body arranged on the lower side of the upper tank body. The upper tank body and the lower tank body are made of metal materials respectively. An upper tank-closing ring edge is arranged on the portion, along the edge of the lower side, of the upper tank body. A lower tank-closing ring edge is arranged on the portion, along the edge of the upper side, of the upper tank body. The upper tank-closing ring edge and the lower tank-closing ring edge are matched and welded together in a rolling mode. The upper tank body is a concave casing with the front end and the rear end being protruding faces and the middle portion being a sunken face. The sunken face of the upper tank body is provided with a fuel pump installing flange and a turning-over valve installing flange. The upper tank body is further provided with an oil filling pipe and a ventilation pipe. The cost of the fuel tank is far smaller than that of a plastic fuel tank. The upper tank body and the lower tank body are connected firmly and stably, and influence of vibration is small; due to the sunken face, the tail portion of the installed fuel pump and the tail portion of the turning-over valve are prevented from protruding or protruding excessively.
Owner:重庆双五汽车零部件有限公司

Device for cyclically removing carbon dioxide using calcium-based absorbent with steam activated reactor and method for cyclically removing carbon dioxide using calcium-based absorbent

The invention discloses a device for cyclically removing carbon dioxide using a calcium-based absorbent with a steam activated reactor. The device comprises a fluidized bed carbonation reactor, a fluidized bed calcination decomposition reactor, a fluidized bed steam activated reactor, a fluidized bed dehydration regeneration reactor, a first cyclone separator, a second cyclone separator, a first return feeder, a second return feeder, a circulating material heat exchanger, a CO2 heat exchanger, an air separation unit and pipelines for connecting parts. The activity of CaO inactivated after calcination is regenerated by using the steam activated reactor, and an absorbent pore structure and a reaction surface are substantially regenerated by a hydration-water loss reaction, so that the activity of the calcium-based absorbent can be significantly maintained, the decline in activity of the absorbent is inhibited, and the discharge of an inactivated absorbent and the replenishment amount of a fresh absorbent can be reduced; the heat of temperature flue gas and a recycled material is fully utilized by using the heat exchanger to generate high temperature oxygen, nitrogen and steam, and the thermal economy and energy utilization efficiency of a carbon capture process are improved.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE

Heat treatment spent liquor salt recovery processing method and apparatus

The invention relates to a recycle processing method for heat treating waste liquid salts and a device thereof. The recycle processing method for heat treating waste liquid salts comprises following steps: (1) a high liquid level and a low liquid level of a heating slot of salt recycling are set; (2) a mixed liquid of salt and water for cleaning a water slot is pumped into the heating slot of salt recycling, and when the temperature of the mixed liquid of salt and water is raised over 100 DEG C, the water in the mixed liquid evaporates into water vapor which is cooled into water and returned back into a cleaner for recycling; (3) when the liquid level decreases to the low liquid level, a salt discharging valve is opened, and salt solution enters a salt storing slot for cooling and recycling. The specialized device is characterized that the specialized device comprises the cleaning slot (1), a heating device of salt recycling (2) and a condenser (3); a water inlet end of the heating device of salt recycling is connected with the cleaning slot, an air outlet end of the heating device of salt recycling is connected with an air inlet end of the condenser, and the water outlet end of the condenser is connected with the water inlet end of the cleaning slot; a salt discharging port and a valve are arranged in the bottom of a shell, the storing slot of salt recycling is arranged under the shell. The recycle processing method for heat treating waste liquid salts and the device thereof realize non-discharging of sewage and have the advantages of saving water resource, recycling waste salts and lowering cost.
Owner:GUANGDONG STRONG METAL TECH

Gas field sulfur-containing waste gas treatment method

The invention relates to a waste gas treatment process, in particular to a gas field sulfur-containing waste gas treatment method. The method comprises the following steps that raw material gas is treated by a gas-liquid separator to separate out free water; the raw material gas subjected to the free water separation enters an absorption tower in a jet flow manner through a first Venturi tube; a desulfurization solution enters the absorption tower to be mixed with the raw material gas in the second step; bivalent sulfur in the raw material gas in the absorption tower is directly converted into sulfur; purified gas is exhausted from the top of the absorption tower through a defoaming device; after generated sulfur particles pass through a filtering machine or a filter press, sulfur filter cake is obtained; the filter cake enters a sulfur melting kettle to obtain a sulfur product; the desulfurization solution flows into a flash tank after taking reaction in the absorption tower; after flashing, desulfurization rich liquid enters a regeneration tower; the desulfurization rich liquid in the regeneration tower is subjected to oxidation and regeneration, air is subjected to fan pressurization and Venturi tube jet flow to be mixed with the desulfurization rich liquid; the mixed desulfurization solution enters the regeneration tower in a bubbling or aeration mode; after the regeneration, desulfurization barren liquid enters a plate frame filter or the filter press through a solution circulation pump; after being filtered, the desulfurization solution enters the absorption tower to be cyclically used.
Owner:四川沃兹凯兰科技有限公司

Motor with shock absorption and heat dissipation functions

The invention discloses a motor with shock absorption and heat dissipation functions. The motor comprises a motor body, a heat dissipation mechanism and a shock absorption seat; a cavity is formed inthe top of the shock absorption seat, a shock absorption block is slidably connected to the interior of the cavity, an oil filtering cavity is formed in the center of the interior of the shock absorption block, an oil pressing seat is slidably arranged in the oil filtering cavity, the motor body is arranged above the shock absorption seat, and the heat dissipation mechanism is arranged in the motor body; the motor body comprises a casing, a stator, a rotor, a rotating shaft and a bearing; the heat dissipation mechanism comprises a first oil guide base, a heat conduction pipe and a second oil guide base. Oil can be effectively pushed into a machine body through vibration generated by working of the motor body; heat exchange cooling is conducted on the interior of the machine body through flowing of oil, lubrication on bearings is achieved, mechanical loss is reduced, the service life of the motor body is prolonged, oil pressure of backflow oil can be effectively used as buffering forceto reduce device vibration, the operation stability of the motor body is improved, overall energy consumption is low, linkage performance is high, and the motor is suitable for popularization.
Owner:WUXI NEW GREAT POWER ELECTRICAL MACHINE

Method for improving hydrogen peroxide bleaching efficiency of paper pulp

The invention discloses a method for improving hydrogen peroxide bleaching efficiency of paper pulp, and belongs to the technical field of pulp preparation and papermaking. According to the method, a urea active agent and a chelating agent are simultaneously added in the alkali hydrogen peroxide bleaching process of chemical mechanical pulp or waste paper ink removed pulp, the consumption of the urea is 2.0 to 20 kilograms per ton of pulp, the consumption of ethylene diamine tetraacetic acid (EDTA) or diethylenetriamine pentaacetic acid (DTPA) serving as the chelating agent is 1 to 10 kilograms per ton of pulp, and hydrogen peroxide, sodium hydroxide and sodium silicate are simultaneously added during bleaching. In the alkali hydrogen peroxide bleaching process of the paper pulp, the urea serving as the active agent is added at the same time of adding the chelating agent, so that the hydrogen peroxide bleaching efficiency can be improved. Compared with a method without adding the urea serving as the active agent during bleaching, the method has the advantages that: the whiteness of the bleached pulp is obviously improved after the urea is added during bleaching, and the physical strength of the bleached pulp is basically as same as that of the pulp when the urea is not added.
Owner:MCC PAPER YINHE

Composite greenhouse capable of recycling oxygen, carbon dioxide and the like inside

The invention provides a compound greenhouse capable of recycling oxygen, carbon dioxide and the like inside. The composite greenhouse is composed of a sun-facing greenhouse body, a shade greenhouse body and a middle wall, wherein the sun-facing greenhouse body is located on the sun-facing side, the shade greenhouse body is located on the shade side; the sun-facing greenhouse body and the shade greenhouse body are connected together through the shared middle wall, the middle wall is provided with two rows of vent holes up and down, and ventilation equipment is installed at the vent holes. Edible mushrooms in the shade greenhouse body generate respiratory heat at night and thus play a role in thermal insulation and temperature increase of the sun-facing greenhouse body, solar radiation heatabsorbed by the sun-facing greenhouse body in the daytime can increase the temperature of the shade greenhouse body, the sun-facing greenhouse body and the shade greenhouse body supplement each otherand can achieve thermal insulation and temperature increase in agricultural production in the greenhouse in winter, and energy is saved. Air fertilizers are supplied, carbon dioxide and oxygen reasonably flow, transform and are reasonably used, metabolism is promoted, the cost is reduced, and the efficiency is greatly improved.
Owner:王永显

Cooling method and system of high-temperature directly reduced iron

The invention discloses a cooling method and a system of high-temperature directly reduced iron. Under the protection of protective gas, firstly, water mist is directly sprayed to the high-temperature directly reduced iron so that the high-temperature directly reduced iron cools over 620 DEG C, and then water is sprayed or fed to the outer wall of the vessel of the directly reduced iron for cooling purpose, thus indirectly cooling the directly reduced iron. By analyzing the chemical reaction property of iron and steam, the method concludes that the iron above 620 DEG C does not react with steam. Therefore, the method can realize rapid cooling effect by first directly cooling the high-temperature directly reduced iron, and also avoid oxidation of iron by water. Then, the directly reduced iron is cooled to required temperature by a regular indirect cooling method. At the time, yet without direct contact of water with directly reduced iron, the oxidation of iron by water is avoided. The whole cooling process proceeds under the protection of protective gas, thus preventing iron from being oxidized by air. Compared with the method of totally indirect cooling, the method of first direct cooling and second indirect cooling is higher in cooling efficiency, and can also prevent iron from being oxidized for a second time or balls from bursting.
Owner:CISDI ENG CO LTD
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