57results about How to "Reduce fouling rate" patented technology

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of impregnating the bound zeolite base with the transition metal, fluorine, and high loadings of chlorine. The resultant high chlorine content supported catalysts have improved catalyst activity in aromatization reactions.

The charge gas from the thermal cracking of a hydrocarbon feedstock is processed in a front-end catalytic distillation hydrogenation system of an olefins plant to more effectively recover ethylene and propylene product and to process the by-products. The rate of fouling in the system is reduced by employing two columns in the system with the first column operating at a higher pressure and the second column operating at a lower pressure. The hydrogenation as well as fractionation takes place in the first column while the second column is only a fractionator. The temperature of the bottoms from each column is maintained at a temperature less than 200° C. to avoid fouling.

A system and process for enhancing total organic carbon (“TOC”) removal from raw, untreated water while maintaining optimum membrane filter performance. The present invention overcomes many of the disadvantages of prior art water filtration systems by controlling the pH level of the water, prior to the water being directed through said membrane filter, so that the particulate charge of the water aligns with the electromagnetic surface charge of membrane filter. Maintaining the particulate charge of the water within an optimum charge window for the particular membrane filter enhances the membrane filter's performance by decreasing the fouling rate of the membrane filter.

Biomass is quickly becoming an important feedstock for energy generation in power plants. Due to their composition and nature, certain biomass fuels contribute to slagging, fouling, and corrosion. This invention provides a novel method of reducing or suppressing slag deposition and / or cleaning deposited slag in energy production processes in which potassium-containing solid fuels are combusted. Besides acting as a slag suppressant, further advantages of this invention are that the additive has no detrimental side-effects on capital equipment, increases slag friability, decreases slag fouling rate, reduces heat transfer corrosion as well as increasing the lifetime of the selective catalytic reduction catalyst.

A system and process for enhancing total organic carbon (“TOC”) removal from raw, untreated water while maintaining optimum membrane filter performance. The present invention overcomes many of the disadvantages of prior art water filtration systems by controlling the pH level of the water, prior to the water being directed through said membrane filter, so that the particulate charge of the water aligns with the electromagnetic surface charge of membrane filter. Maintaining the particulate charge of the water within an optimum charge window for the particular membrane filter enhances the membrane filter's performance by decreasing the fouling rate of the membrane filter.

The invention discloses a heat exchanger. The heat exchanger comprises a base and a heat exchange assembly, wherein the base is used as a bearing device of the whole heat exchanger; the heat exchange assembly comprises a shell, two heat exchange cores, a medium inlet and a medium outlet; the shell is fixedly welded on the base and is provided with two cavities; the two heat exchange cores are arranged in the cavities of the shell; the medium inlet and the medium outlet is in cyclic circulation with the heat exchange cores; an inner cavity of the shell is divided into a first cavity and a second cavity by a partitioning plate; a gap flow channel is formed between the partitioning plate and the bottom of the shell; the first cavity and the second cavity of the shell are communicated by the gas flow channel; and the two heat exchange cores are respectively and fixedly arranged in the first cavity and the second cavity of the shell. The heat exchanger disclosed by the invention is compact and sealed in structure, capable of switching single or double heat exchange cores, remarkable in the heat exchange effect and is simple and convenient to maintain. The heat exchanger disclosed by the invention also has the advantages of low cost, pressure and corrosion resistance, long service life and the like.

Fouling in the scrubber section of a fluid coker unit is reduced by providing baffles to improve the uniformity of the gas flow profile in the scrubber by reducing the gas velocity of the cyclone outlet gases in the scrubber section of the unit. These baffles are located with the objective of reducing the rotational component of the gas flow in the scrubber created by the alignment of the gas outlets of the cyclones. The baffles are preferably located in the shed section of the scrubber and comprise upstanding perforated plates located at the periphery of the scrubber section to disrupt high velocity gas jets in the region of the interior wall of the scrubber.

The invention relates to vacuum single and double liner vacuum water transporting pipe anti-explosion waste-recycling magnetized water awning type and other solar water heaters, a water tank uses the vacuum single and double liner aluminum foil plating technology and is divided into a first and a second electric heating; a gas outlet hole is provided with a movable semi-circular convex cover which can carry out the gas outlet and can not carry out cold and heat exchange; a vacuum water transporting pipe, which is made by sleeving a large pipe and a small pipe after the plating of an aluminum foil on the outer wall of a PPR pipe and carrying out the vacuum pumping at the two ends by using a sandwich direct two-way thermoplastic seal, has good thermal insulation effect; water supply and water drainage use separate pipes, an electromagnetic valve is arranged at a hot water outlet of the water tank, when in cold water supply, the hot water outlet is closed, a hot water pipe can not be affected by the cold water, thereby supplying hot water after opening a valve, waste heat of an air conditioner which increases a water drainage sleeve is utilized in summer for preparing hot water for a thermal insulation water bucket of a kitchen, the awning type water tank is packed by separating with a floor and has three pipe arrangement modes, and the number of heat absorbing pipes is increased for making up the deficiencies of sunshine time. A non-awning-type intermediary water tank can be linked with the water tank for market sale which can also have three structural forms. The sandwich magnetized direct two-way magnetizable water can allow pipelines to have less dirt and be smooth. An anti-explosion bag can release more volume when the pipelines are frozen.

The invention provides a reverse evaporating and concentrating system for molasses alcohol waste liquid. The flowing direction of a material is as follows in sequence: a V-effect evaporator, a IV-effect evaporator, a III-effect evaporator, a II-effect evaporator and a I-effect evaporator; low-concentration alcohol waste liquid at about 80 DEG C from a distillery enters the V-effect evaporator, and is pumped into the IV-effect evaporator and the III-effect evaporator in sequence; after medium-concentration alcohol waste liquid from the III-effect evaporator is heated to 95 DEG C or above through a first heater, the medium-concentration alcohol waste liquid precipitates and is clarified in a clarifying pond, then is heated to 105 DEG C through a second heater and a third heater, enters the I-effect evaporator, and then enters the II-effect evaporator. According to the reverse evaporating and concentrating system for the molasses alcohol waste liquid, the using amount of primary steam in alcohol production is reduced by utilizing an energy-saving transformation technical method of using secondary steam generated by multiple-effect evaporation of the waste liquid in alcohol distillation, so that the energy consumption of the alcohol production is reduced, and the production operation cost is reduced.

The invention discloses a novel super heat conduction ceramic film composite material and a preparation method thereof, and belongs to the technical field of wave absorption function materials. The composite material is prepared from the following raw materials in parts by weight: 20 to 25 parts of fast soluble sodium silicate, 28 to 32 parts of crystal silicon, 4 to 8 parts of nanometer magnesia,13 to 17 parts of carbon fiber, 2 to 5 parts of boron fiber, 2 to 5 parts of silicic acid fiber, 8 to 12 parts of aluminum oxide powder and 23 to 28 parts of deionized water. The obtained material covers the surface of metal to isolate the metal from external media so as to block external high-temperature oxygen and corrosive substances; the metal pipe wall is effectively protected; the wave absorption performance is obvious; infrared radiation is generated; a good energy saving effect is achieved; the material is applied to the field of boilers; the energy is saved; the environment is protected; the operation of the boiler is safe; the boiler friction pipe blasting is reduced; the boiler hearth coking is reduced; the service life of the boiler is prolonged.

The invention discloses a two-piece type self-cleaning ball valve adopting floating seal, and belongs to the field of ball valves. Self-cleaning of the floating ball valve can be achieved, as a ball body is mounted in a ball body seat, impurities can be prevented from being massively accumulated between the ball body and the inner wall of a valve seat, and the ball body is protected against corrosion of the impurities; and as cleaning scraper blades are arranged on the two sides of the ball body, when the ball body rotates, the impurities settling on the outer surface of the ball body can be scraped off through the cleaning scraper blades, a deformation plate is further arranged on the inner wall of the ball body seat, an arch face is formed on the inner wall of the ball body seat, thus, the probability that the impurities scale on the inner wall of the ball body seat can be greatly reduced, the impurities settling on the deformation plate can be vibrated off through the vibration effect of deformation restoration of the deformation plate, the impurities are taken away by media, thus, self-cleaning of the ball body is achieved, long-time stable work of the ball valve is guaranteed,in addition, cleaning balls similar to lotus leaf surface structures are further arranged in a passageway of the ball body to prevent the impurities from being left, and the self-cleaning effect of the ball valve is further improved.

The invention belongs to the technical field of water treatment and in particular relates to a scale inhibitor used for boiler circulating water. The scale inhibitor comprises the following components in parts by weight: sodium lignosulfonate, polyaspartic acid, ethylenediamine tetraacetic acid tetrasodium salt, tannin and sodium salt of a hypophosphorous acid copolymer. The scale inhibitor is convenient to use, has low toxicity, is tasteless and has good dispersibility.

The invention relates to the technical field of water treatment and discloses a comprehensive treatment method for high-salinity high-concentration organic wastewater. The method comprises the steps of subjecting the wastewater to be treated to magnetic separation treatment, Fenton oxidation treatment, blow-off treatment, electrocatalytic treatment and biochemical treatment sequentially and finally yielding water. According to the method, a variety of wastewater treatment technologies are properly optimized and combined, and thus, defects of single treatment technologies are made up, so that the method has the advantages that the effect of treating the organic wastewater is good, the reaction time is short, and a good reaction rate can be maintained under low-temperature conditions.

The heat exchange apparatus provides a flow passage for the heat exchange fluid comprising a succession of flow passage chamber portions separated from one another by intervening throttle forming passage portions of smaller cross section, and therefore of smaller flow capacity, transverse to the flow direction, so that the heat exchange fluid moves at a higher velocity in the throttle forming portions than in the chamber portions. The fluid is moved at a rate such that its velocity in the throttle forming portions is high enough to reduce the thickness of the fluid boundary layer on the passage wall and thereby facilitate the heat exchange. Alternatively, or in addition, the velocity is high enough to at least reduce the rate of fouling of the passage wall surface. Alternatively, or in addition, the fluid flows as eddy vortices, the spacing of the chamber portions along the passage being such that wake interference flow is established which enhances the rate of heat exchange. The exchanger is intended principally for use in combination with a spinning tube in tube reactor with a very small annular cross section reaction passage between them, the exchanger also being of tubular form with the stator tube constituting a wall of the heat exchanger.

A system and process for enhancing total organic carbon (“TOC”) removal from raw, untreated water while maintaining optimum membrane filter performance. The present invention overcomes many of the disadvantages of prior art water filtration systems by controlling the pH level of the water, prior to the water being directed through said membrane filter, so that the particulate charge of the water aligns with the electromagnetic surface charge of membrane filter. Maintaining the particulate charge of the water within an optimum charge window for the particular membrane filter enhances the membrane filter's performance by decreasing the fouling rate of the membrane filter.

Fouling in the scrubber section of a fluid coker unit is reduced by providing perforated baffles to improve the uniformity of the gas flow profile in the scrubber by reducing the gas velocity of the cyclone outlet gases in the scrubber section of the unit. These baffles are located with the objective of reducing the rotational component of the gas flow in the scrubber created by the alignment of the gas outlets of the cyclones. The baffles are preferably located in the shed section of the scrubber and comprise upstanding perforated plates located at the periphery of the scrubber section to disrupt high velocity gas jets in the region of the interior wall of the scrubber.

A ceramic membrane drinking water purification device comprises a ceramic membrane shell, a raw water tank, a cleaning water tank and a water production tank; a ceramic membrane is arranged in the ceramic membrane shell, a water inlet is formed in the lower end of the ceramic membrane shell, a reverse cleaning opening is formed in the upper end of the ceramic membrane shell, and a water productionopening is formed in the ceramic membrane shell between the water inlet and the reverse cleaning opening. Due to the fact that the chemical property of the ceramic material is extremely good, chemical cleaning in an approximate full PH value range can be adopted, and the ceramic material is also suitable for chemical cleaning with high-concentration oxidizing agents and even organic solvents; even under the condition of extreme pollution, various high-concentration chemical agents can be used for cleaning, yet the organic membrane still has certain limitation on the selection of the agents; in addition, the hydrophilic performance of the ceramic is far higher than that of PVDF, the cleaning restorability is far better than that of PVDF, and the cleaning restorability is far better than that of an organic membrane due to the fact that the hydrophilic performance of the ceramic is far higher than that of the organic membrane.

The invention relates to a circulating industrial water-saving system which comprises a water supplementing pipeline mounted on a tower body, a water collecting tank mounted at the bottom of the tower body, a spraying system connected with the water supplementing pipeline and a water purifying tank communicated with the water collecting tank, an overflow hole is formed in the water collecting tank, a support is mounted at the top in the water purifying tank, and the support is rotationally connected with a plurality of rotating shafts; the support is fixedly connected with a plurality of motors, a rotating disc is coaxially fixed to the bottom end of the rotating shaft, the rotating disc is rotatably connected with a plurality of stirring rods at equal intervals, the stirring rods are fixedly connected with a plurality of stirring blades in the circumferential direction, and a transmission assembly is arranged between the support and the stirring rods; a water inlet column is installed in the center of the support and is hollow, the top end of the water inlet column is connected with a medicament pipe, and the bottom end of the water inlet column is connected with an adjusting piece. The device has the advantages that the efficiency of fully stirring the medicament is ensured, the effect of purifying circulating water is improved, and the resource recycling efficiency is improved.

The invention discloses a using-procedure-free low-nitrogen condensation type fuel gas steam boiler. The using-procedure-free low-nitrogen condensation type fuel gas steam boiler comprises a chimney,a boiler prying platform base, an integrated energy economizer and condenser, a low-nitrogen burner, a steam valve, a safety valve, a boiler body (including fins, smoke guide plates, an upper collection box, a lower steam-water separator, a lower collection box, an upper steam-water separator, a water inlet and vertical pipelines), an independent downcomer, a water tank, a water feed pump, a liquid level controller and a boiler control cabinet. According to the using-procedure-free low-nitrogen condensation type fuel gas steam boiler, a wall smooth pipe serves as a heat exchanging water pipe,a water pipe with the surface connected with the thick fins in a welded manner serves as a heat exchanging pipe, and the heat exchanging area is increased by 2 times under the same length of the waterpipe; according to the boiler, the service life is prolonged, and the conversion efficiency is also improved; the steam-water separation effect is good, and high-quality steam is obtained; using is convenient, the using range is also enlarged, the energy loss can also be reduced, and meanwhile the discharge amount of nitric oxide is also reduced.

The invention belongs to the technical field of water treatment and particularly relates to a scale inhibitor for boiler circulating water. The scale inhibitor for boiler circulating water consists of the following components in parts by weight: sodium lignin sulfonate, 1-hydroxyethylidene-1,1-diphosphonic acid, ethylene diamine tetraacetic acid tetra-sodium salt, sodium hydroxide and hypophosphite copolymer sodium salt. The scale inhibitor disclosed by the invention is convenient to use, low in toxicity, odorless and good in dispersing performance.

The invention discloses an efficient pretreatment process for a household garbage incineration fly ash evaporation system. Fly ash in a household garbage incineration field is discharged from a clean water tank after countercurrent rinsing and wastewater treatment, the TOC concentration in the discharged water of the clean water tank is further reduced by adopting an ozone catalytic oxidation and MBR pretreatment process, impurity particles in the discharged water of the clean water tank are separated, the operation stability in the evaporative crystallization process is ensured, the evaporator cannot be blocked and scaled due to the influence of impurities in a short time, and the quality of final produced salt is improved. Meanwhile, according to the method disclosed by the invention, the quality of water entering the evaporator is improved, the TOC concentration of effluent of the clean water tank is reduced and the stability of evaporative crystallization in the subsequent treatment process is improved through an ozone catalytic oxidation + MBR process, so that the method is an efficient and economic domestic garbage incineration fly ash evaporative crystallization guarantee treatment process.

The invention discloses a heat exchanger. The heat exchanger comprises a base and a heat exchange assembly, wherein the base is used as a bearing device of the whole heat exchanger; the heat exchange assembly comprises a shell, two heat exchange cores, a medium inlet and a medium outlet; the shell is fixedly welded on the base and is provided with two cavities; the two heat exchange cores are arranged in the cavities of the shell; the medium inlet and the medium outlet is in cyclic circulation with the heat exchange cores; an inner cavity of the shell is divided into a first cavity and a second cavity by a partitioning plate; a gap flow channel is formed between the partitioning plate and the bottom of the shell; the first cavity and the second cavity of the shell are communicated by the gas flow channel; and the two heat exchange cores are respectively and fixedly arranged in the first cavity and the second cavity of the shell. The heat exchanger disclosed by the invention is compact and sealed in structure, capable of switching single or double heat exchange cores, remarkable in the heat exchange effect and is simple and convenient to maintain. The heat exchanger disclosed by the invention also has the advantages of low cost, pressure and corrosion resistance, long service life and the like.

The invention relates to the technical field of air pumps, in particular to a vacuum water ring combined pump. The vacuum water ring combined pump comprises a storage tank, a roots vacuum pump, a filtering device and a water ring vacuum pump, the storage tank, the roots vacuum pump, the filtering device and the water ring vacuum pump sequentially communicate with one another through air pipes, andthe filtering device comprises a centrifugal shell, an exhaust pipe and a first volute; the centrifugal shell is vertically arranged, the first volute is fixedly connected to the axial upper end of the centrifugal shell, the first volute and the centrifugal shell are coaxially arranged, one end of the first volute communicates with the air outlet end of the roots vacuum pump, the other end of thefirst volute communicates with the interior of the centrifugal shell, the lower end of the centrifugal shell communicates with a blow-off pipe, and the blow-off pipe communicates with a blow-off valve; and the exhaust pipe and the centrifugal shell are coaxially arranged, one end of the exhaust pipe penetrates into the centrifugal shell from the upper end of the centrifugal shell, and the other end of the exhaust pipe communicates with the air inlet end of the water ring vacuum pump. According to the vacuum water ring combined pump, the probability of scaling in the water ring vacuum pump canbe reduced, and the vacuumizing effect of the combined pump is not prone to being affected.

The invention discloses a novel corrosion resisting technological method and device for a separating device of a gas gathering station. The novel corrosion resisting technological method for the separating device of the gas gathering station comprises the steps that firstly, a corrosion resisting coating material is poured into a storage tank, secondly, a connecting rod extends into a lower barrel of a separator; thirdly, a camera and a pickup camera are switched on, the inner scene of the lower barrel are observed in real time; fourthly, a universal connector is adjusted to enable a spray gun to reach the position needing coating; fifthly, a boosting pump is switched on, the corrosion resisting coating material is made to reach a spray nozzle portion of the spray gun, and the inner wall of the lower barrel is evenly coated with the corrosion resisting coating material through the spray gun; and sixthly, detection of the thickness of a corrosion resisting layer and inspection of leak sources are conducted. The invention further discloses the device involved in the novel corrosion resisting technological method for the separating device of the gas gathering station. By the adoption of the device, coating can be conducted in a sight dead area of the inner portion of the lower barrel of the separator, the traditional problems of surface treatment and coating of the dead zone are solved, the amount of attached and deposited dirt is reduced, the service life of the separating device is prolonged, the manual operation intensity is relieved, the whole separating device is more environmentally friendly and lower in energy consumption, and the continuity of production operation is greatly improved.

Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of impregnating the bound zeolite base with the transition metal, fluorine, and high loadings of chlorine. The resultant high chlorine content supported catalysts have improved catalyst activity in aromatization reactions.

The invention relates to a reverse osmosis water purifier RO film protecting system and method. The system comprises an RO film surface flushing system and an electromagnetic resonance generator which are electrically connected. The RO film surface flushing system comprises a film surface flushing and diluting module, an RO film output water power supply module and an automatic control module which are electrically connected. The film surface flushing and diluting module comprises a pressure tank, an RO film shell inlet end pipeline, a first water feeding electromagnetic valve, a flow limiting valve, an RO film filter and a flushing electromagnetic valve which are in pipeline connection. The RO film output water power supply module comprises a pressure tank, a control valve and a check valve which are in pipeline connection. The film surface scaling probability is lowered, and the service life of the film is greatly prolonged; by arranging the electromagnetic resonance generator, resonance occurs between water inherent frequency and electromagnetic field frequency, and the separating-out speed of calcium salt in water is increased, so that electrical conductivity of concentrated water is lowered, and the machine works in a relatively safe water quality state.

The invention discloses a method for synergistically treating high-salinity wastewater by using low-calorific-value combustible gas, which supplements various heat energy required by each stage of high-salinity wastewater treatment by using heat energy generated by combustion of the low-calorific-value combustible gas, and realizes synergistically treating the high-salinity wastewater while treating the low-calorific-value combustible gas. According to the invention, heat energy generated by combustion of the low-heat-value combustible gas can be effectively utilized; latent heat of steam generated by the process can be fully utilized; the method has the advantages of low scaling rate, low energy consumption, low operation cost and the like; the low-calorific-value combustible gas can be converted into electricity and high-temperature flue gas; effective treatment and resource reutilization of the low-calorific-value combustible gas are realized; according to the method, the problem ofutilization of the low-calorific-value combustible gas is solved, pollutants or salt in the high-salinity wastewater can be effectively separated from water, effective treatment and resource reutilization of the high-salinity wastewater are achieved, and the method has good application value and application prospects and has very important significance in resource reutilization of the high-salinity wastewater.

The invention discloses a temperature control system, which comprises a temperature control component and a water replenishing component, wherein the temperature control component comprises a first pipeline, the inner part of the first pipeline is used for bearing condensate water, and two ends of the first pipeline are independently connected with two ends of equipment subjected to temperature control; the water replenishing component comprises a second pipeline and a first valve positioned on the second pipeline, wherein the inner part of the second pipeline is communicated with the first pipeline for providing the condensate water for the temperature control component, and the pH (Potential of Hydrogen) value of the condensate water is between 9 and 10.5. Through the above way, the system can reduce the corrosion of water to a steel roller.

The invention discloses a molasses alcohol waste liquor evaporation and concentration system serving as a heat source of an alcohol distillery. Materials pass through a V-effect evaporator, an IV-effect evaporator, an III-effect evaporator, a first heater, a clarification tank, a second heater, a third heater, an I-effect evaporator and an II-effect evaporator in the flowing direction of molasses alcohol waste liquor; low-concentration alcohol waste liquor at the temperature of 80 DEG C from the distillery enters a V-effect evaporation tank and is pumped into an IV evaporation tank and an III-effect evaporation tank. Medium-concentration alcohol waste liquor from the III-effect evaporation tank is heated to 95 DEG C or higher by the II-effect juice steam and the first heater, enters the clarification tank to be clarified, is heated to 105 DEG C by the second heater, the third heater and I-effect juice steam and enters the I-effect evaporation tank and the II-effect evaporation tank. Secondary steam generated through multi-effect evaporation of the waste liquor is used for an energy-saving reconstruction technique for alcohol distillation, the use amount of primary steam during alcohol production is reduced, the energy consumption during alcohol production is reduced, and the production and operation costs are saved.

The invention relates to the technical field of hard water treatment and utilization systems, in particular to a tap water hardness softening and wastewater recycling system. According to the technical scheme, the system comprises a hard water treatment assembly and a waste water utilization assembly, the hard water treatment assembly comprises an activated carbon filter, the output end of the activated carbon filter is connected with a full-automatic water softener, the output end of the full-automatic water softener is provided with a softened water tank, the output end of the softened water tank is provided with a washing tower, the output end of the washing tower is connected with a wastewater storage tank, the output end of the wastewater storage tank is connected with an air floatation tank, and the output end of the air floatation tank is connected with a wastewater relay tank. The system is used for softening hard water, improving the water treatment effect, reducing the water scaling probability, reducing the energy consumption, prolonging the service life of equipment, reducing the cleaning and maintenance cost, filtering wastewater for use, improving the energy utilization rate, avoiding scaling of a cooling unit, improving the workshop production efficiency and reducing the enterprise cost, and is suitable for popularization and use.