Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

2617 results about "Balance water" patented technology

Determining method for stratum high-temperature high-pressure gas-phase and water-phase relative permeability curve

The invention discloses a determining method for a stratum high-temperature high-pressure gas-phase and water-phase relative permeability curve. The determining method comprises the following steps: S1, preparing a rock core; S2, preparing fluid; S3, carrying out a single separation test on balance gas and balance stratum water; S4, saturating the rock core with water; S5, carrying out a connecting flow and raising the temperature to generate a pressure; S6, carrying out a balance water-phase permeability Kw test; S7, carrying out a gas-driving-water process relative permeability test; S8, correcting an accumulated water yield amount W(t) and an accumulated gas yield amount G(t); converting a value recorded under a ground condition to a stratum condition; and S9, calculating a water-phase relative permeability rate Krw and a gas-phase relative permeability rate Krg at each moment, and a gas-containing saturation degree (Sge) of a rock sample outlet end face. The determining method for the stratum high-temperature high-pressure gas-phase and water-phase relative permeability curve has the beneficial effects that high-temperature and high-pressure conditions of a real gas deposit stratum are effectively simulated and the influences on rocks and the fluid by the high-temperature and high-pressure conditions of the stratum are sufficiently considered; a determined result meets the actual production and the usable value of experimental data is high; the disadvantages in an existing determining method are overcome.
Owner:SOUTHWEST PETROLEUM UNIV

Viscosity-control type polycarboxylate superplasticizer and preparation method thereof

The invention discloses a viscosity-control type polycarboxylate superplasticizer and a preparation method thereof. The method includes: mixing 2-10wt% of an unsaturated acid monomer (A), 18-45wt% of an unsaturated polyoxyethylene macromonomer (B), 1-5wt% of a viscosity-control monomer (C) and the balance water (a total weight of 100%), then adding the mixture into a reaction kettle, adding an initiator solution dropwisely for 2-4h under 70-90DEG C to trigger polymerization, further performing heat preservation reaction for 1-3h under 70-90DEG C, then carrying out natural cooling to 45DEG C, and adjusting the pH value to 6.0-8.0, thus obtaining the viscosity-control type polycarboxylate superplasticizer. The viscosity-control type polycarboxylate superplasticizer has stable performance, and the dosage of each raw material component can be adjusted according to needs, so that the flowability and viscosity requirements of construction concrete can be satisfied, and the bleeding and segregation problems of fresh concrete are solved. The viscosity-control type polycarboxylate superplasticizer provided by the invention has the advantages of easily available raw materials, simple preparation process, cleanliness and safety, easy industrial production and the like, and has broad industrial application prospects.
Owner:CHINA BUILDING MATERIALS ACAD

Slope self-drainage anchor rod and construction method

The invention relates to a slope self-drainage anchor rod and a construction method. The self-drainage anchor rod comprises a hollow anchor pipe, an anchorage device, a cushion plate and a siphon, wherein one end of the hollow anchor pipe is open, the other end of the hollow anchor pipe is closed, the hollow anchor pipe is wrapped in a filter screen, threads are arranged at the open end of the hollow anchor pipe, water-pervious holes are formed in the rear middle of the hollow anchor pipe, the rear segment of the hollow anchor pipe and a slurry outlet pipe are perpendicularly connected, the end of the slurry outlet pipe is sleeved with a sleeve valve and a geotextile bag, and on the two sides of the slurry outlet pipe, the geotextile bag is clamped and fixed to the hollow anchor pipe through hoops; the lower side of the hollow anchor pipe is obliquely placed in a slope, the relative height difference between the pipe opening of the hollow anchor pipe and the pipe bottom of the hollow anchor pipe is kept smaller than 7 m, pulp solidifies in the geotextile bag and is anchored in stable soil, and the front segment of the hollow anchor pipe is anchored to the cushion plate through the anchorage device; a water suction pipe of the siphon is inserted in the hollow anchor pipe and stretches to the bottom, the water suction pipe is connected with a drainage pipe and a balance water outlet device through connector bent pipes on the slope, and a water inlet of the water suction pipe is as high as a water outlet of the balance water outlet device. The slope self-drainage anchor rod is simple in structure, can achieve anchoring and draining at the same time and is good in drainage effect, easy and convenient to construct and low in manufacturing cost.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Aqueous film-forming foam extinguishing agent special for fire extinguishing bullet and throwing type fire extinguisher

The invention provides an aqueous film-forming foam extinguishing agent special for a fire extinguishing bullet and a throwing type fire extinguisher. The aqueous film-forming foam extinguishing agent has the advantages of being small in additive amount, rapid in fire extinguishing, good in recrudescence resisting effect, environmentally friendly, efficient and the like. The aqueous film-forming foam extinguishing agent comprises, by weight, 8 percent to 12 percent of main foaming agents, 8 percent to 20 percent of auxiliary foaming agents, two percent to 10 percent of antifreeze agents, 12 percent to 22 percent of cosolvents, 0.1 percent to one percent of stabilizers, 8 percent to 20 percent of fire retardants, two percent to five percent of burning-resistance agents and the balance water. The main foaming agents are selected from F1157N, F1203 and F1460, the auxiliary foaming agents are selected from lauryl sodium sulfate, ammonium lauryl sulfate, alkyl glycoside, dodecyl dimethyl betaine and cocamidopropyl betaine. The antifreeze agents are selected from ethylene glycol, glycerol and the like. The cosolvents are selected from dodecanol, n-butyl alcohol and diethylene glycol diethyl ether. The stabilizing agents are selected from xanthan gum, Arabic gum, guar gum and sodium alginate tech grade. The fire retardants are selected from ammonium polyphosphate and ammonium dihydrogen phosphate.
Owner:ANHUI TIANYUAN FIRE PROTECTION TECH

Aluminum alloy scratch resistant and fingerprint resistant chromium-free chemical conversion solution for ship and preparation method of conversion film

The invention relates to the field of aluminum alloy decoration and protection coatings for ships, in particular to an aluminum alloy scratch resistant and fingerprint resistant chromium-free chemical conversion solution for a ship and application of the aluminum alloy scratch resistant and fingerprint resistant chromium-free chemical conversion solution to a chemical conversion film. The chemical conversion solution contains titanium salts, zirconium salts, a silicon compound, an accelerator, a surfactant and the balance water, wherein the concentration of the titanium salts in the chromium-free chemical conversion solution ranges from 0.02 to 10g/L; the concentration of the zirconium salts in the chromium-free chemical conversion solution ranges from 0.1-10 g/L; the concentration of thesilicon compound in the chromium-free chemical conversion solution ranges from 2 to 25g/L; the concentration of the accelerator in the chromium-free chemical conversion solution ranges from 0.5-12 g/L; and the concentration of the surfactant in the chemical conversion solution ranges 0.1 to 10g/L. Chemical conversion films are formed on the surfaces of 5xxx or 6xxx series aluminum alloys by adopting an impregnating, brush coating, roller coating or spraying mode; and the chemical conversion films have favorable corrosion resistance, scratch resistance and fingerprint resistance and can be used as the surface decoration and protection coating of the aluminum alloy for the ship.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Mild soap base cleansing cream composition and production process thereof

The invention discloses a mild soap base cleansing cream composition and a production process thereof. The composition comprises, by weight, 2.0% to 50.0% of soap base, 2.0% to 30.0% of negative ion surface active agents, 0.5% to 20.0% of rheolobic modifiers and the balance water. The production process of the mild soap base cleansing cream comprises the following steps: firstly diluting fatty acid with other constituents, compatible with the fatty acid, in the formula and enabling the diluted fatty acid to disperse into fatty acid oil drips through blending; then adding in alkali liquor, so that tiny soap particles are generated after the alkali liquor contacts with the fatty acid oil drips; and finally adding in the constituents which can be added at a low temperature and blending evenly so that materials can be discharged directly. The mild soap base cleansing cream composition has a mild and moistening function, so that a skin can be neither dry nor tight and touches well after being washed. The mild soap base cleansing cream composition also has good high low temperature stability. The production process of the mild soap base cleansing cream is simple and easy to operate, has good repeatability, and can avoid quality problems frequently occurring in the production of a soap base cleansing cream.
Owner:浙江萃芙化妆品有限公司

High-concentration major element liquid water-soluble fertilizer and preparation method thereof

The invention discloses a high-concentration major element liquid water-soluble fertilizer and a preparation method thereof. The fertilizer comprises the materials in parts by weight: 7-10 parts of dipotassium hydrogen phosphate, 18-20 parts of urea, 8-11 parts of potassium dihydrogen phosphate, 5-8 parts of potassium permangenate, 24-28 parts of potassium formate, 1-3 parts of EDTA-Zn, 0.5-2 parts of instant boron, and the balance water. The method comprises the steps: under the ordinary pressure and in a reaction kettle, firstly stirring potassium permangenate, potassium formate and potassium dihydrogen phosphate for 2 h according to the formula ratio under the condition of the temperature of 80 DEG C, adjusting the temperature to 45 DEG C, stirring for 0.5 h, then dissolving dipotassium hydrogen phosphate and urea in the solution according to the set formula, after the materials are dissolved completely, adding a proper amount of instant boron and EDTA-Zn, heating to dissolve, after reaction dissolution of the materials according to the formula ratio is completed, cooling to the room temperature, packaging, and thus obtaining the major element liquid water-soluble fertilizer product. The process is simple, the raw material cost is low, and the product is suitable for requirements of current dropper devices and can be widely popularized.
Owner:中化(临沂)作物营养有限公司

High-speed spindle on-line automatic balancing experiment system

ActiveCN102095555AMeet the needs of high-speed dynamic balanceHigh balance precisionStatic/dynamic balance measurementElectricityAudio power amplifier
The invention discloses a high-speed spindle on-line automatic balancing experiment system. A spindle is arranged on a spindle positioning seat; a magnetic grid encoder is arranged on a bearing on the inner side of the spindle; displacement sensors are arranged the outer sides of two ends of the spindle; on-line dynamic balance devices are arranged at two ends of the spindle; balance water ponds in the on-line dynamic balance devices are arranged on a spindle rotor; a water gun is fixed on an experiment shock absorption platform; a spindle unbalance simulation devices is fixed on end faces of two sides of the spindle rotor through threads; the displacement sensors are connected with a high-speed synchronous data acquisition instrument through a charge amplifier; a photoelectric sensor is connected with the high-speed synchronous data acquisition instrument; and the magnetic grid encoder is connected with a high-speed synchronous counting card through a 1Vpp signal conditioning module. An industrial control computer is connected with an on-line automatic balancing device controller through a universal serial bus. Through the high-speed spindle on-line automatic balancing experiment system, high-speed spindle on-line automatic balancing experiment can be realized, and the system has the characteristics of high speed, accuracy and integrated level and the like.
Owner:XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products