34results about How to "No air lock" patented technology

The invention relates to a kind of environment-friendly lead-free gasoline which includes the following ingredients: 25-35wt% part of gasoline (or light oil/naphtha), 25-35wt% part of methanol, 5-10wt% of n-butanol, 13-29wt% of avantin, 4-10wt% of absolute alcohol, 1-1.5wt% of acetone, 2-2.5wt% of oil benzene, 8-23wt% of di-isobutyl ether and 0.5-1wt% of nucleus additive. The mentioned additive includes the following ingredients: 20-25wt% of acetone, 10-21wt% of isobutanol, 5-15wt% part of kerosene, 25-40wt% part of dimethyl benzene and 6-14wt% part of the gasoline quieting, anti-oxygen, anti-detonate, and anti-corrosion agent. Adding the mentioned material according to the ratio to the reactor and agitating pots, synthesizing for 15-30 minutes; agitating the material in the static admixer to get the gasoline which has good evaporating ability, anti- detonate ability, safe charactiristic, anti-corrosion ability, compatibility and environment-friendly quality.

The invention relates to methanol diesel oil which comprises methanol, diesel oil, fatty acid, petroleum acid, cosolvent, aviation kerosene, a cetane number improver and zinc peroxide. The invention further relates to a preparation method of the methanol diesel oil. According to the methanol diesel oil, the content of methanol in a system is greater, the methanol diesel oil has better mutual solubility with fossil diesel oil, the performance of the methanol diesel oil is improved obviously, and the methanol diesel oil can serve as -20# diesel oil for use, and is safe, environment-friendly and low in raw materials cost. The preparation method is simple in step, mild in condition and suitable for large-scale industrial production.

The invention discloses a dual-gas co-mining device which comprises a casing pipe, a first oil pipe, a second oil pipe and a bridge plug. During well-drain operation of a coal-bed gas well, perforation is performed on a tight sandstone layer, and the tight sandstone gas production layer or a shale gas production layer and a coal bed gas production layer is packed through the bridge plug; perforation is performed on the coal bed gas production layer; the second oil pipe and the first oil pipe with a sucker rod are sequentially placed into the casing pipe. The coal bed gas production layer is drained through a triple-extraction artificial lifting system, after a coal bed gas reservoir reaches desorption pressure, coal bed gas is annularly exhausted from the first oil pipe and the casing pipe, and gas production is achieved; the second oil pipe is used for performing tight sandstone gas exhaust and mining on the right sandstone layer or performing shale gas exhaust and mining on the shale layer. According to the dual-gas co-mining device, it is ensured that no series flow happens between different production layers, no airlocking happens during gas production, co-mining of dual gases of different buried depths and different gas production mechanisms is achieved, and the gas yield of the coal series gas well is effectively increased, and development economic benefits are increased.

The subject of the invention is to provide a vertical self-suction pump which has low restriction in setting space and setting direction, and specifically provide a vertical self-suction pump which has easy and safe filter replacement operation, no requirement for pumping out the air in the pump or water injection before starting-up, and has low restriction in setting space and setting direction compared with the condition of adopting a horizontal pump structure, and is provided with a filtering device. The vertical self-suction pump adopts a valveless structure without a back valve. The vertical self-suction pump is characterized by comprising the following components: a pump part which is provided with a suction inlet, a suction chamber, an impeller, a self-suction chamber, a discharging opening in sequence from the upstream to the downstream of flow path, the suction inlet and the discharging opening are configured at positions above the suction chamber and the impeller, the self-suction chamber is configured at the position above the suction inlet and the discharging opening; and a driving part which is connected with the lower part of the pump body and becomes the driving source of pump body, wherein the rotation direction of impeller is an approximately horizontal direction.

The invention relates to a process and a device for performing the pressurization and the mixed transportation for natural gas in a gas field well station, and solves the problems of weak adaptability to variable working conditions, limited adjusting capacity and low mixed transportation efficiency in a traditional gas field natural gas compressor. A hydraulic cylinder A and a hydraulic cylinder B alternately pump in hydraulic oil under the control of a hydraulic working station to push a piston to move; with a steel wire rope A and a steel wire rope B, when any one of the hydraulic cylinders advances, the other one of the hydraulic cylinders can return, so that alternate reciprocating motion is realized; the hydraulic cylinder A and the hydraulic cylinder B not only can realize series connection operation, but also can realize parallel connecting operation; and the pressurization and the outward transportation of gas and liquid two-phase flows can be realized by continuous reciprocating motion of the hydraulic cylinder A and the hydraulic cylinder B under combined actions of a one-way valve A, a one-way valve B, a one-way valve C and a one-way valve D. The process and the device have strong adaptability to single wells, good pressurization effect on the gas and liquid two-phase flows and high mixed transportation efficiency, can be flexibly regulated according to the production conditions of single wells administered by a gas gathering station, and save the production cost.

The present invention relates to vehicular fuel, and is especially one kind of clean gasoline fuel capable of replacing gasoline for use in vehicle. The clean gasoline fuel is mixture of additive 9-22 %, methanol 20-80 % and light oil, naphtha, solvent oil or gasoline 5-62 %. The clean gasoline fuel meets the standard of no-lead gasoline, has CO exhaust and hydrocarbon exhaust 46.2 % and 69.8 % lower than that of gasoline separately, and may be used in replacing vehicular gasoline.

The invention provides high-cleanness methanol gasoline for a vehicle, and belongs to the technical field of methanol fuel. The high-cleanness methanol gasoline for the vehicle is prepared from methanol, gasoline and an additive in proportion, wherein the additive is prepared from a stabilizer, a flame retardant and antiknock agent, an energizer, a vapor pressure regulator, an antioxidant, a metalcorrosion inhibitor and a rubber swelling inhibitor in proportion. The high-cleanness methanol gasoline for the vehicle has the advantages of good intermiscibility, strong water resistance, easinessin cold start of the vehicle, no air resistance, a high calorific value, complete combustion, inhibition of corrosion of metal parts, inhibition of swelling and cracking of rubber and plastic and thelike. Meanwhile, the additive does not contain tert-butyl methyl ether and any nonferrous metal ions such as lead, aluminum, manganese and zinc, and has the characteristic of environmental friendliness. And moreover, the engine can be directly and completely used under the condition that an existing vehicle engine does not need to be transformed.

The invention relates to the field of fuel preparation, particularly to a novel liquid fuel and a preparation method thereof. The novel liquid fuel provided by the invention is prepared from the compounding of a main material and three kinds of auxiliary solvents, the auxiliary solvents are successively mixed, the obtained mixed auxiliary solvent has good intersolubility, and no other impurities are generated; the mixed and dissolved auxiliary solvent is added in the main material so as to mutually dissolve with the ingredients in the main material, as a result, the ingredients can sufficiently react, the ingredients cooperate with one another, the prepared novel liquid fuel effectively solves the problem that the octane values of most standard fuels are substandard, and the anti-detonating quality enhancing effect is excellent; the problem of cold ignition boot is solved; the novel liquid fuel has the characteristics of energy conservation, emission reduction, high effects, environmental protection and easiness in use, the novel liquid fuel can be singly used in a large amount for a long time, and also can be mixed with conventional commercial gasoline, such as number 97, 93, in any proportion, bad influences cannot be generated, engines and the like do not need to be washed, and the novel liquid fuel has relieving and supplementing effects for the current domestic situation of resource shortage to some extent.

The invention discloses a buoyancy adjusting pump system for a kilometric underwater glider. The buoyancy adjusting pump system comprises a piston cylinder and a transmission supporting cylinder whichare sequentially arranged in a cabin body from front to back in the longitudinal direction. The piston cylinder is provided with a front end opening communicating with the outside world. The rear endof the piston cylinder is fixedly connected with the transmission supporting cylinder. A corrugated expansion pipe and a piston which are coaxial with the piston cylinder are mounted in the piston cylinder. The corrugated expansion pipe is arranged in front of the piston, and the corrugated expansion pipe and the piston are arranged in an isolated mode. The corrugated expansion pipe is provided with a front end opening communicating with the outside world. The front end opening of the corrugated expansion pipe is fixed to the front end opening of the piston cylinder in a sealed mode. The rearend of the corrugated expansion pipe is provided with a back cover. A bellow-type oil bag is formed by the piston cylinder, the corrugated expansion pipe and the piston and is filled with hydraulic oil. A piston transmission mechanism is mounted in the transmission supporting cylinder. The buoyancy adjusting pump system can be suitable for the kilometric underwater glider and is large in displacement, high in speed, high in maneuverability and simple in structure.

This invention discloses a catalytic converter exhaust pipe installation of removable structure for the exhaust pipe segmental, one section of which is connected with the engine, the other one with the muffler extinguishers, and they are fixed on the vehicle chassis. Segmental exhaust pipe on the adjacent side is fixed with catalytic converters used in the connector, one connecting level-hole with large-diameter pipe is put in a fixed link, catalytic converters installed in the casing at the height limit and within the hole the hole shoulder, another connector to the hole with step nut sets, the stage-hole path in space with another cut exhaust pipe, nut sets stage large diameter hole in a ring-sealed trap in the exhaust pipe , nut sets the stage-hole large-diameter casing installed in the thread and thread with nut sets of clamping ring withstood a catalytic converter will be sealed and catalytic converters in the positioning of the casing. It can make catalytic converters easily fixed in the exhaust pipe, and the demolition, the replacement is very convenient. It is good at sealing and looks nice.

The invention discloses a series of methanol gasoline for automobiles and a preparation method thereof. The methanol gasoline comprises (by weight parts) catalytic cracking gasoline 50 to 80, denatured methanol 3 to 40, and environment-protection non-benzene 120 solvent oil 5 to 20, wherein the denatured methanol comprises (by weight parts) oligomeric active polyisobutylene amine (PIBA) 70, ethyl hexa-nitroaniline (EHN) 1, water-free fusel oil 20, ethanol 9, and methanol 900. The preparation method of the methanol gasoline comprises the following steps of: (A) adding the water-free fusel oil into a mixing tank according to the ratio, sequentially adding the ethanol, the oligomeric active polyisobutylene amine, the ethyl hexa-nitroaniline and the methanol, and mixing uniformly to obtain the denatured methanol; and (B) adding the denatured methanol into the mixing tank, respectively adding the environment-protection non-benzene 120 solvent oil and the catalytic cracking gasoline, and mixing uniformly. The methanol gasoline is suitable for automobile in summer to prevent the occurrence of air lock, and has the advantages of simple preparation method and convenient popularization.

The invention provides a production process of a diesel engine M100 balance fuel product. The product is prepared by mixing 75-79 parts of methanol, 9-12 parts of component oil and 1%-4% of an additive, the component oil is prepared from, 10%-14% of solvent oil, 28-31 parts of saturated alkane, 0.03-0.06 part of N,N'-diisobutylphenyldiamine, 0.4-0.7 part of sodium petroleum sulfonate, 2-5 parts ofglycerol, 0.2-0.5 part of copper naphthenate, 17%-20% of a diesel and 4-7 parts of of isopentane, and the additive is prepared from, 3-6 parts of an ethylene glycol methyl ether, 0.05-0.08 part of N,N'-Eriya salicyl-1,2-propylenediamine, 2-5 parts of hydrogen peroxide and 0.07-0.10 part of alkyl nitrate. The process can be directly used on a diesel engine, enhance the power of the fuel product,do not conduct laying and emulsification to ensure normal combustion, and meet and exceed fuel environmental protection requirements required by a state by using a relatively economical use price andthe fuel product with a stable phase, and the adjusted oil product meets the various power and calorific value requirements of a gasoline engine, and achieves stronger power and better economy than agasoline.

The invention relates to alcohol-based clean fuel. The alcohol-based clean fuel is prepared from 15-30% of ethyl alcohol, 1-3% of petroleum ether or naphtha, 70-85% of gasoline, 0.5-1.5% of Tween-80 or benzotriazole, 0.1-0.2% of ethyl tert butyl ether (ETBE), 0.5-2% of diethyl ether, 1-3% of petroleum ammonium sulphonate or Tween-20 or triethanolamine, 0.3-1.5% of tertiary butanol or isopropanol,0.1-1% of castor oil, 0.1-2% of cyclohexanone and 0.1-2.4% of trimethyl butane. The participation amount of the ethyl alcohol of the fuel is large, no layering is caused during use, air resistance canbe avoided, power is strong, corrosion to metal is low, the swelling property of an engine sealing ring is low, a vehicle engine does not need to be modified, and the engine is easy to start in a low-temperature state during use.

A circumferential flow type liquid pump wherein a degassing passage opened in a stepped portion-carrying state in a bottom wall portion and extending radially inward is formed in the vicinity of an impeller in an inner circumferential portion of a pump flow passage, to allow communication between this degassing passage and the exterior of a pump casing assembly (1), and a cross-sectionally arcuate through port which has a cross-sectional area sufficiently larger than that of the degassing passage and which extends along the pump flow passage is provided. The through port may comprise plurality of through ports arranged in the range of the cross-sectionally arcuate area, or a through port directly communicating with the pump flow passage without the degassing passage interposed therebetween.