213results about How to "Solve corrosion" patented technology

The invention discloses a floating breakwater and a method capable of giving consideration to an inner oscillation water column wave energy conversion function. In the floating breakwater capable of giving consideration to the inner oscillation water column wave energy conversion function, the exterior of a floating body is anchored into a seabed through an anchor rope connection sinking block; anoverhauling channel is arranged at the upper part of the floating body; and wave energy conversion related configurations are arranged in the floating body, and comprise an air chamber, an air turbine, a turbine bracket, a linkage shaft, a generator, a cushion layer and an air chamber inner water body. A realization method of the floating breakwater capable of giving consideration to the inner oscillation water column wave energy conversion function comprises the steps of a breakwater arrangement process, a process of the floating body eliminating the wave effect, a wave energy conversion output process and an overhauling process. On the basis of maintaining traditional wave retaining and eliminating functions of the floating breakwater, the wave energy conversion function is realized byusing the oscillation design of water in an air chamber, and the power output in the wave energy conversion process is continuous, so that the reliability is good; the stress design of the breakwateris reasonable, and the durability is excellent; and meanwhile, the construction cost is low, and the engineering production advantages are obvious.

The invention relates to an oilfield produced water heat pump which is used for heating of outward transported crude oil, dehydration of the crude oil and the heat pump process of oilfield produced water for heating. The technical proposal thereof is as follows: the oilfield produced water is sent to a tube pass of a boiling heat exchanger of the produced water from a sewage tank, the oilfield produced water enters a pipeline of an outer drainage pump station of the produced water after heat release and temperature decrease and then enters a shell pass of a working media evaporator of the heat pump after heat absorption and gasification, the released heat is condensed to liquid and then flows back to the shell pass of the boiling heat exchanger of the produced water, steam is sent to a compressor for increasing the pressure and the temperature; the steam is sent to the shell pass of the working media evaporator for releasing the heat and being condensed to the liquid through a pipeline, and the liquid is sent to the tube pass of the working media evaporator of the heat pump after the pressure decrease by a throttle valve; the crude oil or the heating circulating water which needs to be heated is passed in the tube pass of a working media condenser for absorbing the heat which is released by the working media condenser of the heat pump, thereby achieving the needed temperature for outward transportation. The oilfield produced water heat pump of the invention has the advantages that: the oilfield produced water heat pump reduces the fuel consumption and has no waste gas emission; the problems of corrosion resistance, scale resistance and great heat transfer temperature difference in the oilfield produced water heat energy application can be solved, and the COP of the heat pump is improved.

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 andscale 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 inhibitorsof 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 low-salt thick broad-bean sauce free from preservative addition, and a production technology process of the low-salt thick broad-bean sauce free from preservative addition. The low-salt thick broad-bean sauce free from preservative addition is made from the following raw materials in percentage by weight of 12%-24% of broad beans, 48%-60% of fresh hot peppers, 4%-6% of edible salt, 3%-6% of wheat flour, 3%-8% of edible vegetable oil, 1%-2% of monosodium glutamate, 1%-2% of chicken essence, 1%-2% of a spice extraction concentrated solution, 0.3-0.6% of fennel fruit powder, 0.3-0.6% of Chinese prickly ash, 0.2-0.6% of ground cinnamon, 0.2-0.6% of rosemary powder, 0.2-0.6% of star anise and 0.05-0.3% of clove powder. Low-salt fermentation is used, no chemical preservatives are added, and the low-salt thick broad-bean sauce free from preservative addition is high in nutrient value and rich in sauce fragrance.

The invention discloses an integral prefabricated cross-laminated timber (CLT) wooden plate girder bridge based on steel side stiffening, which comprises a bridge superstructure and a bridge substructure, wherein the bridge superstructure is spliced from a plurality of CLT wooden girder plates, and the upper part is provided with girder bridge spandrel girders of a girder bridge deck; each CLT wooden girder plate comprises a girder body structure and corner armor steel sides, the girder body structure is glued from at least three layers of wooden veneer sheets, and the corner armor steel sides are buckled on the upper and lower edges on the front and back ends of the girder body structure and used for stiffening the integral body; and the upper and lower edges on the front and back ends of the girder body structure are correspondingly provided with mounting notches of which the structures and dimensions correspond to those of the corner armor steel sides. The invention has the advantages of light weight, environment friendliness, simple structure, reasonable stressing and good compatibility with surrounding environment, is simple to construct, and can solve the problems of poor compatibility with surrounding environment, easy corrosion from moisture and other natural factors, on-site construction difficulty and the like in the existing bridge.

A method of producing carbonates and recycling energy by cyclically capturing and mineralizing CO2 includes the following steps: 1) adding water to calcium-containing or sodium-containing waste residues to prepare a calcium-containing or a sodium-containing alkaline water solution, or employing calcium-containing alkaline waste water from steel industry as the calcium-containing alkaline water solution; 2) feeding the solution through a pressurizing pump into a multi-stage jet-flow complete stirred reactor, and feeding CO2 flue gas into the multi-stage jet-flow complete stirred reactor in a counter flowing direction to perform a gas-liquid two-phase mineralizing absorption reaction to capture and mineralize CO2; and 3) performing heat exchange and filtration to generated mineral slurry or solution, wherein the filtrate is recycled. The method high-effectively captures and mineralizes low-concentration CO2 waste gas through the alkaline waste residue / waste water, and meanwhile mineralizes and converts the CO2 to obtain a high-additional-value by-product containing carbonate. Reaction heat generated during the capturing and mineralizing process is comprehensively recycled through heat exchangers, thereby achieving low-carbon environment protection treatment of the whole process.