93results about How to "Lower dew point" patented technology

The invention relates to a device for continuously preparing low-temperature dry air with low dew point, mainly comprising the parts as follows: an initial effect air filter, an induced device, a first-level surface refrigerant cooler, a turning wheel dehumidifier, a first-level cryogenic refrigerant cooler, a second-level cryogenic refrigerant cooler and a box body. An end part of the box body is provided with a gas inlet, a tail part of the box body is provided with a gas outlet, the inside of the box body is orderly provided with the initial effect air filter, the induced device, the first-level surface refrigerant cooler, the turning wheel dehumidifier, the first-level cryogenic refrigerant cooler and the second-level cryogenic refrigerant cooler from the end part to the tail part; and the initial effect air filter, the induced device, the first-level surface refrigerant cooler, the turning wheel dehumidifier, the first-level cryogenic refrigerant cooler and the second-level cryogenic refrigerant cooler are orderly connected in series through an air flue. The turning wheel dehumidifier of the device consists of a turning wheel and an air regeneration device; and the device can continuously prepare dry air with absolute water content 0.0003g/kg and the dew point between 80 and 90 DEG C below zero.

Aiming at overcoming the defects of the traditional absorption drying method and a large adsorption type compressed air dryer, the invention provides a process and device being used for drying an adsorption type compressed gas regenerated by using compression heat, being capable of obtaining a drying gas with lower dew point and recycling a blast-cold gas. According to the invention, an exhaust and pressure-reduction process does not exist, the regenerated and heated blast-cold gas is recycled, the compressed air and the energy are saved, and the energy consumption is lowered.

A method for the vacuum perfuming of tobacco shreds features that the tobacco shreds are put in a negative pressure environment to educe out the air and water from the cells of tobacco shreds, and the atomized liquid perfume is sprayed onto said tobacco shreds for sucking it in said cells, by negative pressure. Its apparatus is composed of dual-speed belt conveyer, the first and the second negative-pressure containers, storing belt conveyer, vacuumizing pump, atomized liquid perfume nozzles, discharging conduit, vibration cabin and belt conveyer.

The invention relates to the field of treatment of oil field associated gas. In a method for recovering light hydrocarbon by an oil field associated gas membrane method, gas phase obtained by low-temperature separation is separated by a membrane and the liquid phase is fed into a deethanizing column for treatment; the treated gas phase is separated by the membrane and the liquid phase is fed into a liquefied gas tower for treatment; two paths of gas are formed after membrane separation; one path of gas is dry gas with barely pressure loss; C<3+> component in the gas is reduced to a certain extent compared with the raw gas, the gas is introduced into a cold box after the pressure and the temperature are reduced and delivered out as the dry gas after heat exchange; the other path of gas has pressure which is slightly higher than that of an inlet of a compressor; and the C<3+> component in the gas is richer than that of the raw gas, is returned to the inlet of the compressor and further compressed and condensed to recover the C<3+> component in the gas. The method and the system realize further recovery of the light hydrocarbon in the dry gas by increasing a small amount of investment and operation cost, so that the economy of the process and the quality of the dry gas are improved, black smoke is prevented during combustion, the environmental pollution is reduced, and the service life of a combustion nozzle is prolonged.

The invention discloses a natural gas hydrate preventing and controlling agent. The natural gas hydrate preventing and controlling agent comprises glycerol and/or a glycerol solution. The invention also discloses an application method of the natural gas hydrate preventing and controlling agent. The natural gas hydrate preventing and controlling agent can effectively solve the problem about inhibition or prevention and control of the natural gas hydrate when being applied to production as well as storage and transportation of the natural gas, can be used for exploiting the natural gas from the natural gas hydrate system or mineral resources, and also can be used for reducing the dew point of the natural gas and solving the problem that the natural gas flow channel is frozen and blocked; and the advantages and characteristics of easiness in implementation, wide application, easiness in popularization and the like are achieved.

The invention discloses a healthy comfortable energy-saving air conditioner which comprises a combined evaporator, a demisting chamber, a water and mist separating net, a water outlet, and a heat-exchange circulating device capable of providing heat exchange medium. A dehumidification heat conduction tube penetrates through lower portions of air inlet channels and air return channels, and the dehumidification heat conduction tube and an air outlet heat conduction tube are respectively connected to a heat-exchange circulation loop of the heat-exchange circulating device. A demisting chamber communicating inside air outlets and returned air inlets is arranged below the combined evaporator, the water and mist separating net for preventing direction communication of the inside air outlets and the returned air inlets is arranged inside the demisting chamber, and the water outlet is communicated with the demisting chamber. The temperature and the humidity of outlet air of the air conditioner can be controlled independently, an air-conditioning mode of 'mainly dehumidification and temperature reduction subsidiary' is realized, healthy and comfortable air with low humidity and suitable temperature is obtained, and environment-friendliness and energy conservation are realized. The invention further discloses an air treating method.

The invention provides a post-processing method for polypropylene powder, which belongs to the petroleum chemical field. In the polypropylene post-processing method of the prior art, the method comprises the following steps: polypropylene powder which departs from a polymerization system and is carried out preliminary gas/solid separation enters into a drier, indirectly heated through steam and nitrogen is introduced, hydrocarbons can be removed in powder and then enters in a steamer, nitrogen and water vapor are introduced for inactivation of a catalyst; or the polypropylene powder which departs from a polymerization system and is carried out preliminary gas/solid separation enters into a degassing chamber, water vapor-containing nitrogen is introduced in the degassing chamber; the present invention modifies the prior art. The post-processing method of the invention comprises the following steps: introducing water vapor, modifying the drier to a steam drier used for recovering hydrocarbons and inactivating the catalyst, introducing a hydrocarbons-removed polymer in the steam drier (or a degassing chamber), adding nitrogen without water vapor in the steam drier, modifying the steam drier to a moisture eliminator used for removing water vapor in powder. The method of the invention is capable of thoroughly recovering hydrocarbons which depart from the polymerization system by an economic method, reducing the unit consumption and energy consumption, and thoroughly solving the problem on environmental protection.

The invention relates to a sprinkling open type absorption heat pump system capable of recycling the waste heat of the airflow containing moisture. The sprinkling open type absorption heat pump system capable of recycling the waste heat of the airflow containing moisture comprises an absorber, a generator, a condenser, a solution-water heat exchanger, a sprinkling device and a drive heat source. A flue gas inlet and a flue gas outlet are formed in the side surfaces of the absorber respectively. The sprinkling device is arranged above the flue gas inlet and located in the absorber. A dilute solution outlet formed in the bottom of the absorber is connected with a dilute solution inlet formed in the generator. A concentrated solution outlet formed in the generator is connected with a solution channel of the solution-water heat exchanger and the sprinkling device in sequence. One side of the generator is connected with the drive heat source. A steam outlet is formed in the top of the generator. The condenser is connected with the steam outlet of the generator. A water channel of the solution-water heat exchanger and a heat exchange tube of the condenser are communicated with cold water and a heat consumer installation respectively. According to the sprinkling open type absorption heat pump capable of recycling the waste heat of the airflow containing moisture, the high-temperature airflow containing moisture is made to enter the generator to be in direct contact with an atomization working medium sprinkled by the sprinkling device, so that heat and mass transfer is conducted; in this way, the heat exchanger coefficient is high, heat and water steam in the airflow containing moisture can be effectively recycled during heat exchange, the influence of the dew point of the airflow is avoided, the temperature of the airflow containing the humidity is greatly lowered, and the airflow containing the humidity is discharged out of the absorber.

The invention relates to a coal gas combined purification tower. A vertical tower body sequentially comprises a coal gas cooling section, a tar removal section, a desulfurization section and a naphthalene removal section from bottom to top, which are connected with in series. The coal gas sequentially passes through the coal gas cooling section, tar removal section, desulfurization section and naphthalene removal section to implement purification. The coal gas section can further lower the coal gas temperature, enhance the adsorption effects of the desulfurizer and activated carbon, lower the dew point of the coal gas, reduce the moisture carried in by the previous section and avoid polluting the desulfurizer and activated carbon. The tar removal section can trap most tar fog carried in the coal gas, greatly lower the possibility of accumulation of the tar in the desulfurizer filler layer, prolong the service life of the desulfurizer filler layer and shorten the filler replacement period. The desulfurization section and naphthalene removal section are arranged in series to reduce the quantity and occupied area of equipment, enhance the production efficiency and lower the production cost.

The invention discloses an integrated system for industrial flue gas desulfurization and dewhitening and a method thereof. The integrated system comprises a desulfurization tower, a de-whitening unitand a flue gas heat exchanger; the desulfurization tower is provided with a first flue gas inlet and a first flue gas outlet, and the de-whitening unit is provided with a second flue gas inlet and a second flue gas outlet; the flue gas heat exchanger is configured for dividing-wall transmission of the heat of the industrial flue gas in an industrial flue gas conveying pipeline to the second flue gas outlet to discharged the dried gas, and then the industrial flue gas is send to the first flue gas inlet; the first flue gas outlet is in communication with the second flue gas inlet; the de-whitening unit is provided with a first circulation loop and a second circulation loop; a regeneration device is arranged at the first circulation loop; and a self-circulating heat exchanger is arranged onthe second circulation loop; wherein the type of self-circulating heat exchanger is a dividing wall heat exchanger and is used for cooling the absorbing liquid flowing therethrough. The integrated system and the method thereof have low heat energy consumption, and can reduce the dew point of the gas at the outlet.

The invention discloses a blast furnace flushing slag flue gas whitening integrated device. The blast furnace flushing slag flue gas whitening integrated device comprises a shell and a hot air pipe, wherein a mixing zone is arranged inside the shell; a flue gas inlet, a flue gas outlet and a hot air inlet are formed in the shell; the flue gas outlet is formed above the mixing zone; the flue gas inlet and the hot air inlet are formed in the bottom of the mixing zone; and the hot air pipe is connected to the hot air inlet and is communicated with the mixing zone. Blast furnace flushing slag fluegas enters the mixing zone through the flue gas inlet, hot air enters the mixing zone through the hot air pipe, and the blast furnace flushing slag flue gas and the hot air are mixed in the mixing zone, so that the dew point of mixed flue gas is lowered, the dry-bulb temperature thereof is raised, no white smoke plume is emitted when the mixed flue gas is discharged, and the effect of eliminatingwhite fog is achieved; and meanwhile, the blast furnace flushing slag flue gas whitening integrated device is simple in structure, flexible in land occupation, low in implementation difficulty, low in investment and low in operating cost and has an important application value.

The invention discloses a device and a method of low temperature separation dehydration of a gas field well mouth. Three processes including depressurization, gas-liquid separation and dehydration are integrated, steam in natural gas is condensed into water mist or aquo-complex condensation nucleus by utilizing low temperature cold quantity produced by throttling; high speed gas flow after throttling is sent to a whirlcone of a low temperature separation device; and small water drops and the aquo-complex condensation nucleus in the water mist rotate in the whirlcone at a high speed and are thrown to an inner wall of a casing of the whirlcone under effect of centrifugal force to achieve gas-liquid separation. Compared with a method that the natural gas is overall heated before throttling by using a heating method or an inhibitor is added to block generation of the aquo-complex, the device of low temperature separation dehydration of the gas field well mouth has three functions of throttling, separation and dehydration; and with the adoption of the device, a dehydration device is removed and investment and administration expenses are greatly reduced.

The invention discloses a device and a method for treating carbon black tail gas and an application of the tail gas. The device comprises a carbon black tail gas pressurizing fan, a dehydration tower and a dehydrated tail gas fan, which are connected in sequence, wherein the upper part of the dehydration tower is further connected with a spraying water pump; the lower part of the dehydration tower is further connected with a circulating cooling water system; the circulating cooling water system is further connected with the spraying water pump; and the dehydration tower sequentially comprises a de-foaming device, a liquid distributor, a gas-liquid distributor and a gas initial distributor from top to bottom. According to the device disclosed by the invention, a lot of water in the carbon black tail gas can be effectively removed, the calorific value of the carbon black tail gas is improved, the dew point of the tail gas is reduced, the corrosion to equipment is relieved, harmful substances including carbon black dust are removed, the quality of the carbon black tail gas is improved, national energy conservation and emission reduction are met, and an industrial policy of the circular economy is developed; the device has obvious economic benefits and social benefits; and the treated carbon black tail gas replaces melted-down coal gas of a coke furnace and the replaced melted-down coal gas with the high calorific value is supplied for cities, so that effective and recycled utilization of resources is achieved.

The invention discloses a deep dehydrating system device for natural gas. The device is characterized by comprising a filter separator, a first super-gravity machine, a condenser, a poor/rich liquor heat exchanger, a pressurizing pump, a buffer tank, a reboiler, a second super-gravity machine, a flash tank, a conveying pump, a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a fifth stop valve, a reducing valve, a flowmeter, a vacuum pump, a gas-liquid separator and a three-way valve. The invention discloses a dehydrating method. According to the device, the purity of regenerated triethylene glycol poor liquor can be improved to 99.99wt%. By using the triethylene glycol poor liquor as an absorbent, the water dew-point at the natural gas outlet after water absorption in an absorption system is reduced to be below 35 DEG C below zero, preferably 45 DEG C below zero. The problem that the dehydrating depth of natural gas in the absorption system is low as triethylene glycol is not high in purity is solved, and the dehydrating treatment demand on low water dew point natural gas is met.