373results about How to "No fouling" patented technology

The invention relates to a scale and corrosion inhibitor for treating circulating cooling water, which is prepared from the following components in percentage by weight: 10 to 35 percent of polyaspartic acid (PASP) or polyepoxysuccinic acid, 10 to 35 percent of sodium gluconate, 0.15 to 3 percent of methyl benzotriazole, 1 to 5 percent of imidazoline and deionized water. The polyaspartic acid (PASP) or the polyepoxysuccinic acid (PESA) with biodegradability serving as a main body is compounded with the deionized water, the methyl benzotriazole, the sodium gluconate and the imidazoline to form a phosphorus-free product; the sodium gluconate has good synergy with the methyl benzotriazole and the imidazoline, so the scale and corrosion inhibiting effect is good, and scale formation, corrosion and bacteria and algae propagation of the circulating water can be effectively prevented; and when the added mass concentration is 20mg/L, the corrosion rate is 0.0561mm/a. Under the same water quality condition, the scale and corrosion inhibitor has low adding concentration, low adding quantity and low cost compared with other like products; and the scale and corrosion inhibitor is stable at a high temperature, has certain chlorine resistance and oxidation resistance, can ensure that a system has no scale or corrosion or the like, and can be adapt to the water quality of various complex severe working conditions.

The invention relates to a rotary oil smoke filter which can effectively purify oil smoke in an oil smoke gas and has the characteristics of simple and easy operation, and low cost. A plurality of disk-shaped or helical filter plates which have large radial dimensions, good thermal conductivity and fast heat radiation and are prepared from oil smoke adsorption materials are connected in series to form a group, the group transversely rotates at a high speed, cuts the oil smoke, and divides purifying and processing units. So a contact and collision action of oil smoke particles with the filter plates and an oil smoke wall attachment and deposition effect can be enhanced, thereby the oil smoke condensation and deposition effect is improved, and oil smoke filtering and purifying and air cleaning can be realized; and simultaneously cases that a rang hood does not plot oil and accumulate filth, and needs no cleaning can be guaranteed through flinging condensate droplets onto wall surfaces by a centrifugal effect generated through high speed rotation and collecting the droplets. The rotary oil filter has the advantages of simple and easy operation, high efficiency and reliability, good purifying effect and low cost.

The invention discloses an organic waste gas microemulsion absorbent, and a preparation method and application thereof. The absorbent comprises the following components in percentage by mass: 99.8 to 99.4 percent of water, 0.01 to 2 percent of surfactant, 0.05 to 2 percent of aid and 0.1 to 2 percent of inorganic salt. The preparation method comprises the following steps of: dissolving the surfactant with the water to obtain solution of surfactant; dissolving the aid and the inorganic salt in the water to obtain solution of aid; and mixing the solution of surfactant and the solution of aid and continuously stirring the mixed solution at the same time to obtain the organic waste gas microemulsion absorbent. The organic waste gas microemulsion absorbent is suitable for treating organic waste gases, and has the advantages of broad raw material sources, low cost, low saturated vapor pressure, non-toxicity, stable chemical properties, less corrosion to equipment, high organic waste gas removal efficiency, no need of pre-treating the waste gases, less investment, low running cost and the like; and the saturated absorbent can be recycled so as to realize the comprehensive utilization of resources.

The invention provides an air conditioner, a cooling system of the air conditioner and a cooling method. The cooling system comprises a condenser (1), an evaporator (5), a compressor (6) and a frequency converter (2), wherein the condenser (1), the evaporator (5) and the compressor (6) are connected in sequence, and construct a loop; a refrigerant flow path is formed in the condenser (1); and a cooling flow path is formed in the frequency converter (2); and the cooling flow path is communicated with the refrigerant flow path in the condenser (1) through a liquid taking flow path, and is communicated with the cold evaporator (5) through a liquid return flow path. The cooling system provided by the invention is simple in structure, and has small influence on the overall structure of a unit; a refrigerant is prevented from being scaled and corroded in a pipeline of the cooling system; a refrigerant in the condenser is used for cooling the frequency converter, so that the influence of the external environment is small, and the cooling effect is stable and reliable; and the cooling of the frequency converter and the refrigerating function of the air conditioner are completed at the same time in one cooling system, so that normal running of the air conditioner is effectively ensured.

The invention discloses a solar water purifier based on interface solar photo-thermal conversion, which comprises a solar interface evaporator and a distilled water collector, the solar interface evaporator comprises an open water storage tray and a light absorber with high photo-thermal conversion efficiency, the light absorber is of a double-layer structure and is formed by compounding an upper-layer photo-thermal conversion material and a lower-layer thermal insulation material, and a dust-free cloth is arranged between the upper-layer material and the lower-layer material. During use, it needs to be guaranteed that the dust-free cloth can continuously make contact with the liquid level in a water storage disc, so that it is guaranteed that enough water is conveyed to the surface of thelight absorber to guarantee continuous evaporation. Only solar energy is used as driving energy, other energy sources are not consumed, meanwhile, the problem of replacement of a filter element of aconventional water purifier is avoided, and the device has the advantages of being portable, low in price, high in water purification efficiency and the like and can be stably applied to seawater desalination, sewage treatment and outdoor drinking water purification for a long time.

The invention relates to an electro-deionization method and device for concentrating and purifying heavy metal wastewater synchronously, belonging to a wastewater treatment technique, which adopts first-stage two-section or first-stage multi-section electro-deionization device, wherein the inner sides of the positive and negative poles are arranged with corresponding pole protection chambers, the desalting chamber is filled with large-hole strong-acid strong-base mixed bed resin with narrow particles distributed; cation exchange film is adopted as the direction-turning film, after direction-turning, two adjacent concentration chambers are arranged continuously, both are separated by cation exchange film, simultaneously after direction-turning, the first concentration chamber is filled with large-hole mixed bed resin with the volume of cathode resin more than 50 percent, the heavy metal wastewater to be treated enters the desalting chamber and the concentration chamber in two paths, the heavy metal ion and cathode in the desalted water flow are transferred into the concentration chamber so as to obtain the desalted water, the concentrated water flow is partially circulated or closely circulated so as to obtain the concentrated liquid of metal wastewater, thereby recycling valence metals and pure water resources synchronously and realizing zero emission and resource treatment of wastewater. Compared with the prior art, the wastewater treatment process has higher separation efficiency, more reliable operation, more convenient operation, continuous process operation and no secondary pollution.

The invention discloses a high-hardness salt-containing water concentration method based on monovalent cationic selective electrodialysis. The method comprises the following steps: 1, performing chemical precipitation hardness removal and pretreatment on raw water; 2, performing reverse osmosis desalination treatment; and 3, regulating the pH value of reverse osmosis concentrated saltwater with hydrochloric acid or sulfuric acid to be 4-6 so as to serve as raw electrodialysis water, and enabling the water to respectively enter a desalting chamber and a concentration chamber formed by an anode membrane and a cathode membrane at an interval in an electrodialysis membrane stack, thereby obtaining high-salt electrodialysis water and low-salt electrodialysis water. According to the method disclosed by the invention, extra equipment and devices are not needed, and two ions forming a scale forming matter are separated under the condition that the recovery rate is not changed, so that a scaling phenomenon caused by simultaneous interception or simultaneous permeation is avoided.

The invention relates to a compound corrosion and scale inhibitor which comprises the following raw materials according to mass ratio: 15%-30% of organic phosphonic acid, 10%-20% of acrylic acid or acrylic acid copolymer, 2%-10% of poly-maleic acid, 1%-3% of azole ramifications, 15%-30% of multivariate organic sulfonate, 2%-6% of dimethyl formamide and 20%-35% of water. The compound corrosion and scale inhibitor of the invention is used for a system which employs normal water as circulating cooling water, so as to solve corrosion problem caused by circulating water of normal-water to equipment. Corrosion rate of copper product is lower than the national standard of 0.005mm/a, thereby generating no equipment scaling caused by calcium phosphate deposition. Compared with corrosion inhibitors of the same kind, the compound corrosion and scale inhibitor has a lower dosage and is effective in corrosion and scale inhibiting. The compound corrosion and scale inhibitor is simple in operation, convenient, quick, safe and efficient.

The invention discloses a processing method for electro-adsorption demineralized water, which belongs to the water processing with an electrochemical separation method. The processing method for the electro-adsorption demineralized water comprises the following technical processes of energizing working, discharging for standing, carrying out short circuit and regenerating, and has the characteristics that industrial hydrochloric acid is injected into an electro-adsorption module (1) under the condition of continuously feeding water and energizing before the technical process of discharging for standing; water injected with the hydrochloric acid is controlled to just fill in the electro-adsorption module without being discharged out of the system; in addition, the pH (Potential Of Hydrogen) value range of the electro-adsorption module is controlled to 2.0-6.0; while the hydrochloric acid is injected, yielding water normally enters a water production tank (6) and is switched to a middle water discharging tank B (12); and after the electro-adsorption module is full of the hydrochloric acid, water is stop to feed, and the power supply is cut off to enter the technical processes of discharging for standing and regenerating. The invention provides the processing method for the electro-adsorption demineralized water, which has the advantages of simple step and excellent electrode regeneration effect, the electro-adsorption module does not scale, and an electro-adsorption demineralizer is guaranteed to continuously and stably operate for a long term.

A device for preparing high-purity organic substance by fusion crystallizing method is a tower structure which is divided into upper cooling-crystallizing segment, middle separating-purifying segment and lower crystal fusing segment. Its tower body is inclined and is composed of casing consisting of intersected two cylinders, heater and parallel engaged two spiral stirrers.

The invention relates to a method for preparing carbide (MC)-Co/Ni composite powder and hard alloy, and belongs to the field of wet metallurgy and powder metallurgy. The method adopts mechanically pretreated MC powder using WC as a main component and cobalt/nickel ammine complexing solution as raw materials, utilizes the self-catalysis activity of the mechanically pretreated MC powder, and adopts a hydrothermal high-pressure hydrogen reduction process to prepare the MC-Co/Ni composite powder under the condition that a sensitizing agent, an activating agent and a catalyst are not added; and on the basis, the method prepares the hard alloy of which the grain size is more than or equal to 4.5mu m without a wet grinding process. The method has the characteristics of low cost, short flow and high purity, does not cause alloy pollution, and the like.

Disclosed is a solar energy water heater of vacuum glass cover heat pipe plane type, comprising tank consisted of thermal insulating material and outer gimbal, vacuum plane glass above the tank, absorber plate consisted of heating pipe and fin, condensing zone of the heat pipe and recycling water tank are connected, the water tank and water storage are connected or the condensing zone of heat pipe is directly connected to water storage, and absorber plate is under the vacuum plane glass. The invention has no problems of icing, scale formation and atmospheric corrosion, fairly good red flared radiation can be emitting from heat collector inside because of high level of transparency of the vacuum plane glass to sun radiation but opaque to red flared radiation, decreasing radiation heat loss to absorber plate. Besides, heat pie has fast start-up, high sensitiveness, wide work range, fast heat transfer, only oneway heat exchange between heat collecting pie, and when the sun radiation is fairly low, heat elimination of heating working substance to environment can be reduced.

The invention relates to a boiled water machine/a hot water device. The functions of a boiled water machine and a hot water device are organically combined into a whole so as to avoid repeated investment. Firstly, water is preheated to drinking water of 90 DEG C and hot water of 60 DEG C respectively through a drinking water heating cup and a hot water heating cup; secondly, the drinking water of 90 DEG C is unidirectionally guided out from the drinking water heating cup to a drinking water valve through utilizing a parallel check valve in a water outlet of the drinking water heating cup and the hot water heating cup, thereby realizing the function of the boiled water machine; or the drinking water of 90 DEG C and hot water of 60 DEG C are guided out in parallel from the drinking water heating cup and the hot water heating cup to a cold/hot water mixing valve and are mixed into hot water of 70 DEG C, thereby realizing the function of the hot water device.

The invention relates to a jet type evaporation cooler with low water outlet temperature. The jet type evaporation cooler comprises a filler, a cooling water coil pipe and a fan, wherein the filler is arranged below the cooling water coil pipe; the lower side of the filler is connected with a jet cooling device through a water baffle plate; the jet cooling device comprises a water tank, a water pump, a water segregator, spraying pipes, nozzles and a water receiver; the spraying pipes are respectively arranged on two sides on the upper side of the water tank and connected with the water tank through the water segregator and the water pump; a plurality of nozzles are arranged on the spraying pipes; and the water receiver is arranged in the middle of the jet cooling device. By the jet type evaporation cooler with low water outlet temperature, air is cooled and depressurized by water jetted by the nozzles and then enters the coil pipe region on the upper part; the temperature of circulating water is greatly reduced by increasing the ventilating amount through the high-power fan; therefore, scaling is avoided, and the water outlet temperature is relatively low; and furthermore, the cooler can adapt to different running modes in different seasons.

The invention relates to a scale and corrosion inhibitor using recycled water as circulating cooling water in a fired power plant, a method and an application thereof. The recycled water is civic recycled water which is used as the circulating cooling water in the fired power plant in the manner of moisturizing, wherein the scale and corrosion inhibitor contains two sets of components: the first set of component contains organic phosphonate, polycarboxylic polybasic copolymer, zinc salt and water which is used as the solvent, and the second set of component contains copper corrosion inhibitor. The two sets of components are separately packaged. The scale and corrosion inhibitor can efficiently prevent calcium carbonate, scatter calcium carbonate crystallite, change the state of the calcium carbonate crystallite and prevent the generation of ferric oxide and calcium phosphate scale. The invention has the function of preventing the scale and corrosion of the civic water which is rich in salt, ammonia nitrogen and COD, is high in basicity and hardness and has strong anti-corrosion property. The scale and corrosion inhibitor of the invention can meet the demand of inhibiting scale and corrosion by only using 10 to 50 mg/l, so the industrial water usage and cost are saved and the benefit is high.

The invention relates to a cleaning agent for cold rolling galvanizing pretreatment, which comprises the following constituents (by weight percentage): sodium-hydroxide 10-50%, sodium carbonate 10-40%, sodium tripolyphosphate 5-30%, glucoheptonates 5-30%, composite alkyl phosphate ester surface active agent 1-7%, and polyether type defoaming agent 1-7%.

The invention relates to a concentrated solution drying system utilizing smoke waste heat to concentrate desulphurization waste water. The concentrated solution drying system comprises a flue heat exchanger, an evaporator group, a tail gas condenser, a tail gas condensation tank and a desulphurization waste water drying system, wherein a desulphurization waste water pipeline and a flue heater areconnected with the evaporator group, steam treated by the evaporator group successively enters the tail gas condenser and the tail gas condensation tank, and the desulphurization waste water concentrated solution treated by the evaporator group enters the desulphurization waste water drying system; the flue heat exchanger utilizes the smoke waste heat to heat the desulphurization waste water in the evaporator group; the evaporator group separates impurities from the desulphurization waste water in an evaporation manner; the tail gas condenser cools and condenses the evaporated steam; the tailgas condensation tank stores the condensed water and sends the condensed water into a finished product water tank; and the desulphurization waste water concentrated solution in the desulphurization waste water drying system is sprayed into a drying space to be mixed with flying ash to form solid powder to be collected. By adopting the concentrated solution drying system, no waste solid, waste water and waste gas is generated in the technological process, the condensed water evaporated by the waste heat of the smoke is completely recycled, the investment expense is low, and the maintenance costis low.

The invention relates to an industrial secondary refrigerant. The industrial secondary refrigerant is composed of, by weight, 80 to 99% of glycol alkyl ether or propylene glycol alkyl ether compounds, 0.1 to 5% of a corrosion scale inhibitor and 0.9 to 10% function-adjusting liquid. According to the invention, the secondary refrigerant is added with the environment-friendly corrosion scale inhibitor which is harmless to the environment and human body, and the corrosion scale inhibitor can adsorb on metal surface and forms a physical adsorption protective film, so dissolved oxygen is blocked from diffusion to the metal surface; meanwhile, a compact passivation antirust film is generated through oxidation reduction reaction of the corrosion scale inhibitor with the metal surface, so metal oxidation is inhibited; moreover, the industrial secondary refrigerant provided by the invention also selects and uses the glycol alkyl ether or propylene glycol alkyl ether compounds with low viscosity, so effects of cold carrying and heat exchanging are guaranteed. The industrial secondary refrigerant in the invention is suitable for being used as the secondary refrigerant applied in industry under minus 80 to 200 DEG C, and an indirect heat transfer system in chemical industrial production and medicinal synthesis process. The secondary refrigerant is non-toxic and harmless, has excellent and safe heat transfer property and good fluidity at low temperature, does not precipitate and scale, and has the characteristics of environmental protection, cold carrying, heat transfer, corrosion inhibition, bacterial inhibition, low viscosity, corrosion resistance, etc.

The present invention relates to the field of concentration by evaporation technology. Said equipment is mainly composed of hot-air indirectly-heating hot-blast furnace, evaporator, condenser and hot-air transferring equipment. The hot-air outlet of indirectly heat-exchanged hot-blast furnace is connected with evaporator by pipeline, the outlet of evaporator is connected with condensation heat-exchanger, and the air outlet of condenser is connected with blower fan by pipeline, so that they are formed into the connected evaporation and condensation system.

The invention relates to a VCM purification hydrochloric acid full-resolution device and process. The VCM purification hydrochloric acid full-resolution device comprises a concentrated hydrochloric acid resolution system and a dilute hydrochloric acid vacuum concentration system, wherein the concentrated hydrochloric acid resolution system comprises a two-way heat exchanger, a concentrated hydrochloric acid resolution tower, a first-stage hydrogen chloride cooler, a second-stage hydrogen chloride cooler and an acid mist separator which are in communication with each other in sequence, and thelower part of the two-way heat exchanger is in communication with a dilute acid intermediate tank through a dilute acid cooler; the dilute hydrochloric acid vacuum concentration system comprises a dilute hydrochloric acid concentration tower, a water vapor condenser, a waste water intermediate tank and a waste water cooler, the dilute acid intermediate tank is in communication with the dilute hydrochloric acid concentration tower, the bottom of the dilute hydrochloric acid concentration tower is in communication with the concentrated hydrochloric acid resolution tower, and the dilute hydrochloric acid concentration tower is connected with the water vapor condenser and the waste water intermediate tank sequentially, and the waste water intermediate tank is in communication with the dilute hydrochloric acid concentration tower and the waste water cooler. The VCM purification hydrochloric acid full-resolution device is free of waste liquid containing mercury-diluted calcium chloride, andhas the advantages of low failure rate, long-term continuous operation, short process flow, small occupied area and small investment and the like.