81results about How to "Major benefits" patented technology

The invention relates to a reuse treatment method for industrial wastewater from a refrigerator compressor factory. Firstly, independently collected emulsified bath solution wastewater is acidified and demulsified, free oil and emulsified oil in the wastewater are eliminated, and then the wastewater is subjected to Fe<2+> / H2O2 oxidation, the effluent pH is 7-8, and then coagulant aid is added forcoagulation sedimentation, and organic matter, metal salt and SS are removed, so that emulsified bath solution water is obtained. Subsequently, the emulsified bath solution water and the independently collected rinsing wastewater are uniformly mixed according to the ratio of 1:20-30 to serve as the source water for micro filter membrane treatment; the source water is subjected to air floatation oil separation dephosphorization, coagulation and activated carbon adsorption to obtain water with the pH value of 9-10 under micro filtration, and then the water under micro filtration enters the micro filter membrane, so clean water is obtained; and the clean water and tap water are mixed according to the ratio of 1:1-2, are subjected to filtering by activated carbon and 5um precise filtration and enter a reverse osmosis membrane, and then pure water is obtained after desalination, and the pure water can be reused for production. With the reuse treatment method, the water quality of reused water is stable and can reach the standard of pure water used by enterprises for production, the water is reused for a product line, so that the wastewater discharge of the enterprises is greatly reduced, the use volume of tap water is saved, and remarkable economical and social benefits are achieved.

The invention discloses an electric signal feature extraction and recognition system oriented to aircraft flying process, particularly relates to a collection, processing, extraction and recognition system for electric signals of an aircraft. The system takes the electric signals of the aircraft as an object, is based on the process oriented to flying tasks and is suitable for convention testing of the aircraft at each stage and in various modes and combined testing of multiple aircrafts. By the system, dynamic data, which are more comprehensive and are based on the flying process, of the electric signals can be accumulated at a comprehensive testing stage and serve as a criterion to judge whether electric performance of the aircraft is normal or not, and the dynamic data exceed corresponding remote measuring indicators of a tested object in the aspects of accuracy and instantaneity; as a key link for verifying the aircraft, compared with conventional remote measuring of the aircraft, monitoring accuracy and rate of the system are improved remarkably on a number level, an efficient means is provided for comprehensive testing of the aircraft oriented for complex flying process, and level of judging electric performance working state of the aircraft on a system level is improved.

The invention discloses a suppressing water pool system for a containment. The system comprises a dry well (11) arranged in the upper region of the containment and wet wells (12) arranged in the lower region of the containment, wherein wet well water pools (120) filled with water are arranged in the lower parts of the wet wells (12), and wet well gas space (121) is formed in the upper parts of the wet well water pools (120), and a partition interface (13) in the middle position at the bottom of the dry well (11) sink to form a reactor pit (15); and a plurality of suppressing pipes (14), the inlet of each of which is located in the bottom position of the dry well (11) and the outlet of each of which is located in the bottom position of each of the wet well water pools (120), and the suppressing pipes (14) are located below the water surfaces of the wet well water pools (120). Correspondingly, the invention further discloses a nuclear island containment. According to the embodiment of the invention, pressure increasing of the containment can be quickly inhibited in the early stage of an accident, so that the design pressure of the containment housing is reduced and the suppressing water pool system plays a quite remarkable role of protecting the containment and the system in the containment after the accident.

A method for calibrating pushing force of trial run table inside an engine room belongs to the technical field of aviation engines, and includes the following steps of: drawing a maximum state theoretic pushing force index tolerance zone and a full stress application state theoretic pushing force index tolerance zone at the corresponding atmospheric temperature respectively; calculating the maximum state theoretic pushing force value and the full stress application state theoretic pushing force value at the corresponding atmospheric temperature respectively through the maximum state pushing force reduction coefficient and the stress application state pushing force reduction coefficient; drawing a maximum state theoretic pushing force tolerance curve and a full stress application state theoretic pushing force tolerance curve as per the maximum state pushing force limit value tolerance and the full stress application state pushing force limit value tolerance; drawing pushing force measure values of the trial run table into the maximum state theoretic pushing force tolerance curve and the full stress application state theoretic pushing force tolerance curve respectively as per the inlet temperature of the engine, and further obtaining the variation curve of the maximum state measurement pushing force along the atmospheric temperature and the variation curve of the full stress application state measurement pushing force along the atmospheric temperature of the rack engine; and multiplying the pushing force measure values of the trial run table by the same coefficient simultaneously, enabling more than 90% measurement points to fall in the tolerance zones and enabling all the pushing force measurement points to conform to normal distribution. At the moment, the coefficient is the pushing force correction factor.

The invention discloses a method for producing iron alloy through vanadium extraction tailing reduction smelting. The method comprises the steps that: vanadium extraction tailing is well mixed with a carbon source and calcium oxide; the mixture is heated to a first temperature, and the temperature is maintained for approximately 10-20min; the obtained mixture is heated to a second temperature, and the temperature is maintained for approximately 20-50min; and obtained vanadium-chromium-containing iron alloy is collected. A mixing ratio is that every 100 parts by weight of the vanadium extraction tailing is mixed with approximately 20-35 parts by weight of the carbon source and approximately 15-25 parts by weight of calcium oxide. The first temperature can be 800-900 DEG C, and the second temperature can be 1350-1500 DEG C.

The invention discloses a ferrous oxide-based ammonia synthesis catalyst. The ferrous oxide is taken as a main phase component, and potassium oxide, calcium oxide, aluminum oxide, magnesium oxide and other metal oxides are used as auxiliary catalysts. The ferrous oxide-based ammonia synthesis catalyst is prepared by a melting method. The catalyst has high activity to catalyze nitrogen and hydrogenate to synthesize ammonia, easy to reduce, and great in heat resistance and antitoxic and has mechanical performances. The catalyst is suitable to be used in various sizes of ammonia synthesizing devices, and particularly suitable for a low-pressure and low-energy consumption ammonia synthesizing technique; and obvious energy saving, consumption reduction, efficiency increasing, cost saving and economic benefits are achieved.

The laterally supported pile-slab soilless roadbed of expressway involves the new technology field of expressway construction. It consists of piles, pile-slab connection devices and end cap beams. The beneficial technical effects of the present invention are: a brand-new laterally supported pile-slab frame system is created, which can effectively transmit the upper vertical and horizontal loads caused by automobiles, etc., and the unique connection device of the pile-slab makes the pile and the slab not fully consolidated , have strong adaptability to temperature changes. Because there is no need to fill the piles, the land is saved, the impact on the surrounding environment is reduced, and it is beneficial to the protection of the environment. Pile and slab components are standardized and prefabricated in the factory and transported to the site. The degree of matching construction is high, showing the characteristics of short construction period and good economy. The innovative achievements of the invention will be in the leading position in China.

The invention provides a vertical type inner container-free double grate boiler, which mainly comprises a boiler shell body, a circular header pipe, an overhead drum, a group of external layer convection pipes and a group of infolding convection pipes, wherein a backfire furnace arch is constructed at bevels of the group of infolding convection pipes so that a backfire hearth is formed and a smoke upgoing circular cavity structure is formed by the backfire hearth and the external layer convection pipes; and a secondary combustion hearth is formed by an upper grate and a lower grate, which arearranged on the bottom of backfire hearth so that coal can be burnt sufficiently, the high temperature smoke can enter the smoke circular cavity, move upwards and exchange heat with a water body fully after passing the secondary combustion hearth smoothly and the invention aim of the backfire operation of the vertical type inner container-free boiler is realized. The vertical type inner container-free double grate boiler has the advantages of simple structure, low manufacture cost, scientific and reasonable combustion manner and high safety performance; the heat efficiency of the vertical type inner container-free boiler can be further improved and the pollution load of smoke extraction is reduced obviously; and the vertical type inner container-free double grate boiler is an ideal product of upgrading and optimizing the traditional vertical boiler.

The invention relates to a desulfurization ash-coal ash complex mineral admixture and a preparation method thereof. The admixture is prepared from, by mass, 40-70 parts of desulfurization ash, 22-52 parts of coal ash, 5-10 parts of reinforced activated material, surface modification agent and a grinding aid, the total mass of the desulfurization ash, the coal ash and the reinforced activated material is 100 parts, the mass of the surface modification agent accounts for 0.2-0.5% of the total mass of the desulfurization ash, the coal ash and the reinforced activated material, and the mass of the grinding aid accounts for 0.1-0.2% of the total mass of the desulfurization ash, the coal ash and the reinforced activated material. The two kinds of waste of the coal ash and the desulfurization ash serve as the raw materials, cost is low, environmental pollution is reduced, resource waste is avoided, and great economic benefits and environmental protection significance are achieved. In addition, the two kinds of waste of the coal ash and the desulfurization ash are doped at the same time, negative effects generated when the two kinds of matter are independently used as the concrete admixture are reduced, the comprehensive performance of obtained concrete is good, and use standards are met.

The invention discloses rare earth corrosion-resistant steel rich in alloyed rare earth elements and a manufacturing method of the rare earth corrosion-resistant steel. The steel is characterized in that the rare earth elements are one or more of cerium Ce, lanthanum La and yttrium Y, and in percentage by weight, the content of the alloyed rare earth elements is controlled to range from 0.005 wt%to 0.045 wt% through a steelmaking rare earth wire feeding process. According the provided economical corrosion-resistant steel, the yield strength grade is 235 MPa or above or the yield strength grade is 355 MPa or above, and the relative corrosion rate at a 96-hour periodic infiltration corrosion test is smaller than 70% (compared with Q235B in the national standard <Common Carbon Steel> GB / T700); and the steel can be widely applied to constructional engineering, indoor engineering, and coating-free steel structure engineering under the outdoor atmospheric environment in an arid and rainless area.

An electric heating device of carbon fiber consists of box and carbon fiber electric heating body inserted in box body. It is featured as forming said carbon fiber electric heating body by carbon fiber electric heating layer and insulation conductive layer laid on surface of carbon fiber electric heating layer as well as setting electrode connecting with power supply cable on carbon fiber electric heating layer.

The invention discloses an easy-to-flow composite mineral admixture, a preparation method thereof and mortar prepared from the admixture. The admixture comprises mineral powder, fly ash floating beads, quartz sand tailings and a grinding aid. The preparation method comprises the following steps: mixing the mineral powder, the quartz sand tailings and the grinding aid, grinding, drying, cooling, adding the fly ash floating beads, and uniformly mixing to obtain the admixture. The mortar comprises water, cement, sand and the admixture. The mineral powder, the fly ash floating beads and the quartzsand tailings are compounded, and the grinding aid is combined so that the mortar fluidity of the prepared composite mineral admixture can be effectively improved, and the use standard of JG / T486-2015 Composite Admixture for Concrete (the activity index is greater than or equal to 65% in 7d and 28d, and the flow ratio is greater than or equal to 110%) is met.

The invention provides a satellite-borne laser near-coast terrain detection laser radar and a detection method. The satellite-borne laser near-coast terrain detection laser radar comprises a laser, atransmitting optical light splitting device, a large-aperture telescope, a relay optical device, a multi-channel photoelectric detector, a laser controller, a signal acquisition and processing module,a signal conditioning and detector control module and a comprehensive controller. Parallel dual-wavelength laser emission is utilized, large dynamic detection of deep sea and shallow sea seabed echoes is achieved through large and small view field detection of 532 nm wavelength laser echoes, synchronous detection of the sea surface is achieved through 1064 nm echo detection, and therefore the near-coast seabed terrain and a water depth are accurately measured; atmospheric detection is realized through parallel dual-wavelength laser emission and polarization receiving detection; and through multi-beam laser emission and sub-view-field receiving detection, high-efficiency measurement of an ocean wave height and the near-coast land terrain is achieved, the laser radar is carried by a satellite platform, and global-scale near-coast terrain and water depth measurement can be achieved through continuous scanning in a satellite flight direction.

The invention provides a sectional fabricated-type I-shaped composite beam body, and relates to the field of railway concrete beam type structures. The sectional fabricated-type I-shaped composite beam body is characterized in that the sectional fabricated-type I-shaped composite beam body is composed of a plurality of pre-fabricated sectional I-shaped composite beams, shear connectors, and pre-stressed steel strands, the shear connectors are fixedly arranged at the two ends of each prefabricated sectional I-shaped composite beam, the prefabricated sectional I-shaped composite beams are connected together through the shear connectors, and the pre-stressed steel strands are arranged between every two sectional I-shaped composite beams and located in the two sectional I-shaped composite beams. The sectional fabricated-type I-shaped composite beam body is convenient to transport, rapid to construct, simple in formwork, and good in construction stability, and can be promoted and used in medium and small-span bridges.

The present invention relates to joint nitrogen-fixing plant symbiosis technology and is the constructing method of nitrogen-fixing plants. The present invention combines the observation and test in pure culture condition and large scale field simulation. The specific operations include the selection of fungus and bacterium variety; and the combination of mycorhiza fungi, nitrogen fixing, bacteria and symbiotic nitrogen-fixing plants to construct symbiont. The overwhelming combination includes VA mycorhiza fungi, exogenous mycorhiza fungi and nitrogen fixing bacteria separated from root of nitrogen-fixing tree. The said method can utilize the superiority of both nitrogen-fixing plant and microbes to restore the ecological environment of fragile zone.

The invention relates to a bistable electro-hydraulic reversing valve, comprising a pilot valve one (1), a pilot valve two (2), a throttle port (3), a secondary valve, a three-stage valve, and a one-way valve (6). ), check valve two (7) and accumulator (8), pilot valve one (1), pilot valve two (2) to control the left and right strokes of the secondary valve spool (4) respectively, and then by the two The stage valve spool (4) controls the third stage valve spool (5). When the pilot valve one (1) is electrically actuated, the pressure oil in the accumulator passes through the pilot valve one (1), and then passes through the check valve one (6) to build up pressure in the left end valve chamber of the secondary valve chamber, and the second The stage valve spool (4) is subjected to a force to the right, and then moves to the right. In this way, the pressure is built up in the left end valve cavity of the three-stage valve cavity, the three-stage valve spool (5) is moved to the right, the A3 port is connected to the high-pressure oil, and the B port is connected to the return oil. The large-flow bistable electro-hydraulic reversing valve of the present invention can realize high-speed reversing, has a self-locking function in both open and closed steady-state positions, so that the steady-state position is highly reliable, and has the functions of manual locking and electromagnetic locking at the same time , suitable for use in systems with high reliability requirements, therefore, it has significant military and economic benefits.

The invention provides a protein with the emulsion ability and application thereof. The amino acid sequence of the emulsified protein is SEQ ID NO:1. The emulsified protein is used for processing high-viscosity oil sludge contaminated by heavy hydrocarbon compounds. When processing the high-viscosity oil sludge contaminated by the heavy hydrocarbon compounds, the obtained emulsified protein has a very good deoiling effect and can enable the content of oil in the oil sludge to be reduced to now 0.8% from originally 6.1%, and the oil content is reduced by 87%. Compared with a physical or chemical method, the cost can be saved by 30%, the protein exhibits great economic benefits and scaled application potentialities while cost saving and environmental protection are achieved.

The invention discloses a prefabricated elastic concrete anti-seismic check block. The prefabricated elastic concrete anti-seismic check block comprises a cross beam and elastic check blocks, whereinthe upper surfaces of the two ends of the cross beam are oppositely provided with preformed grooves, and the inner walls of the bottoms of the preformed grooves are provided with cross grooves; the elastic check blocks are inserted in the preformed grooves, and a high-strength non-shrinkage cement grouting material is poured into gaps between the elastic check blocks and the preformed grooves, wherein each elastic block comprises a longitudinal end arranged in the corresponding preformed groove and a transverse end perpendicular to the corresponding longitudinal end, the middle of the bottom of each longitudinal end is crosswise provided with a first clamping block and a second clamping block, each first clamping block and the corresponding second clamping block are vertically arranged, each first clamping block and the corresponding second clamping block are clamped in the corresponding cross groove, the front end of each transverse end is provided with a mounting groove, and each mounting groove is internally provided with a buffer mechanism. The prefabricated elastic concrete anti-seismic check block has the advantages of being simple in structure, practical, convenient and simple and rapid in construction, and being capable of being replaced immediately after damage.

The invention provides a bioemulsifier which is prepared from bacillus licheniformis XS2-450 strains with preservation number of CGMCC No. 9430. The bioemulsifier obtained by the invention is used for processing high-viscosity oil sludge polluted by heavy hydrocarbons. The emulsification activity of the emulsifier can be up to 83.2%, and the emulsion stability of the emulsifier on liquid paraffin is kept at 72.8% after 30 days. Furthermore, when applied to process the high-viscosity oil sludge polluted by heavy hydrocarbons, the bioemulsifier can achieve a favorable oil removal effect and reduce the oil content in the oil sludge from original 26.2% to current 1.5%, and the oil content is reduced by at least 94%; compared with physical and chemical methods, the bioemulsifier is capable of saving the cost by 30%, and showing great economic benefits and large-scale application potential while saving the cost and protecting the environment.

The invention relates to the field of the chemical synthesis and particularly discloses a method for preparing a flavanone compound. A 2'-hydroxy chalcone compound carries out a cyclization reaction to generate the flavanone compound under the condition that pyridinium onium salt, NaOH and water exist. The method of the invention has the advantages of short reaction time, higher product yield, no by-product, no toxicity of the catalyst and easy separation and purification of the product, and has wide industrial application prospect.

The invention provides a detachable power cable anti-termite plugging device, and relates to the field of power equipment. The detachable power cable anti-termite plugging device comprises a sealing device, a second connecting pipe, a smearing device, a fourth connecting pipe and a fifth connecting pipe. A wire fixing device is arranged on a first connecting pipe. One end of the first connecting pipe is connected with one end of the second connecting pipe. The wire fixing device is arranged in the first connecting pipe. The other end of the second connecting pipe is connected with one end of a third connecting pipe arranged on the smearing device. A smearing insecticide box is arranged in the third connecting pipe. The other end of the third connecting pipe is connected with one end of the fourth connecting pipe. The other end of the fourth connecting pipe is connected with the fifth connecting pipe. The detachable power cable anti-termite plugging device is simple in structure and convenient to operate so that anti-termite plugging of the power cable can be realized, detaching and replacing can be performed, installation is convenient and the novel plugging device can be repeatedly used, the plugging device can be suitable for anti-termite plugging of various tunnels and incoming wires of cabinet cables and thus the plugging device has significant engineering value and economic benefit.

The invention relates to a cleanable power communication cable anti-insect plugging device and belongs to the electric equipment field. The cleanable power communication cable anti-insect plugging device is composed of a sealing device and a second connecting pipe; the sealing device is composed of a first connecting pipe, a wire fixing device and a connecting block; one end of the first connecting pipe is provided with the wire fixing device, and the other end of the first connecting pipe is provided with the connecting block; the second connecting pipe is provided with a connecting groove, adeinsectization device, a cleaning device, a positioning pipe, an air inlet hole and an external screw thread; the cleaning device is arranged in the deinsectization device; the deinsectization device is disposed in the second connecting pipe; the cleaning device is composed of an air intake pipe, a gas nozzle, and a cover; one end of the air intake pipe is provided with the gas nozzle, and the other end of the air intake pipe is arranged on the second connecting pipe; the cover is arranged on the side surface of the other end of the second connecting pipe; one end of the second connecting pipe is provided with the connecting groove; and the first connecting pipe is connected with the second connecting pipe through the connecting groove and the connecting block. The cleanable power communication cable anti-insect plugging device of the invention is of structural simplicity and suitable for being applied to the ant prevention and plugging of the cable incoming lines of various cabinetbody cables, has a great engineering value and can bring economic benefits.

The invention relates to the technical field of anti-counterfeit printing, and discloses a preparation method of water-based rare-earth up-conversion fluorescent ink. The method takes water-based polyurethane (WPU) prepolymer as an organic ligand; types of doped rare-earth ions are changed, and a hydro-thermal synthesis method is adopted for obtaining a water-based rare-earth fluoride up-conversion light-emitting material with high light-emitting strength; the water-based rare-earth fluoride up-conversion light-emitting material is added into an ink system, water-based polyurethane is taken asa connecting material, water is taken as a dispersing medium, and the water-based rare-earth up-conversion ink is prepared through processes such as pre-dispersing, high-speed stirring and homogenizing; and a needed pattern is obtained on printing stock through a sealing or concave-sealing mode. The water-based rare-earth up-conversion fluorescent ink prepared by the method disclosed by the invention has the advantages of good environment friendliness, strong anti-counterfeit capability grade, high light-emitting strength, good printability, capability of showing various printings tock materials, simple operation, short period, and the like, and can be printed on bills, negotiable securities, trade marks or packages on a large scale, so that a product has a relatively high anti-counterfeit function.

The invention discloses a mountainous ground ropeway traffic system which comprises at least one ground pile assembly and a carrying vehicle body. The ground pile assembly comprises a plurality of vertically arranged segmented load telescopic piles arranged in a spaced manner. The segmented load telescopic piles are fixedly connected to a second chain through a first chain. The carrying vehicle body is fixedly provided with a chain conveying channel, the second chain is arranged in the chain conveying channel in a penetrating manner, and an opening is formed in a side part of the chain conveying channel for the first chain to pass. A plurality of damping braking parts arranged on the outer side of the chain conveying channel in a spaced manner. Each damping braking part comprises two rubber wheels oppositely arranged on the upper and lower sides of the chain conveying channel, the rubber wheels are connected to a fixed plate, the fixed plate is hinged and connected to a fixed block ofthe chain conveying channel, the fixed plate is connected to a braking system of the carrying vehicle body, a first through hole is formed in a part, corresponding to the rubber wheel, of the chain conveying channel, the fixed plate is also connected to a clamping block, and a second through hole is formed in a part, corresponding to the clamping block, of the chain conveying channel.

The invention relates to a high-efficiency liquid-state alcohol preparation method by wild straw leaves and relates to a novel alcohol preparation technology. The high-efficiency liquid-state alcohol preparation method includes configuring equipment, finely preparing and fermenting, distilling efficiently, converting and packaging, specifically, firstly weighing green Chinese silvergrass, dried Chinese silvergrass, weeds and stem leaves according to the proportion of 4-3:2-3:2-1 and 3-2:2-1:2-3 respectively, then weighing the green raw materials, lime and purified water according to the proportion of 6-5:2-1:5-4 and disposing into a tank to soak for 13-15 days so that crude fibers of the dried raw materials are softened, weighing the dried raw materials, the lime and the purified water according to the proportion of 5-4:3-2:6-5, and disposing to the tank to soak for 16-18 days so that crude fibers of the dried raw materials are softened; and then filtering and washing the green raw materials and the dried raw materials to smash into raw material pulp, weighing the raw material pulp, alcohol yeast and purified water according to the proportion of 7-6:4-3:8-7 to feed into a fermenting tank to ferment for 15-17 days, pumping mash into distilling equipment when the color of the mash turns into brown black, heating and distilling to obtain alcohol.

The invention discloses a method for increasing content of mannan in space mutation yeast strains. According to the method, fermentation culture is performed on saccharomyces cerevisiae with a culture medium comprising a carbon source, a nitrogen source and an enzyme activator, and the mannan is obtained. Tests prove that the content and the biomass of the mannan obtained with the method are 321.89 plus / minus 1.94 mg / 100 ml and 3846.22 plus / minus 9.28 mg / 100 ml respectively and are 75.69% and 91.24% higher than those of basic culture medium YEPD (yeast extract peptone dextrose) respectively. The method overcomes defects that existing fermentation means are single, extracted polysaccharide content is lower and the like, all adopted equipment can meet requirements of industrial production, the cost is low, the economic benefit is high, and the method has the very good application prospect.

The invention discloses a method for producing an agricultural biological agent with natural latex separating liquid. The method comprises the steps that natural latex is separated into two parts in advance, namely concentrated latex and latex skim slurry, through a high speed centrifuge, and then the two parts are processed separately; after part of moisture in the latex skim slurry is removed through an RO membrane, a concentrated latex skim solution is obtained; a proper amount of urea and sodium metasilicate are added to the concentrated latex skim solution to adjust pH value, and then a water and soil conservation agent is obtained; selected microorganism strains and a proper amount of waste molasses are added to the concentrated latex skim solution, sealed fermentation is conducted, and then liquid microbial agent is obtained; selected microorganism strains, a proper amount of waste molasses and inorganic fertilizer are added to the concentrated latex skim solution, and then liquid agricultural microbial fertilizer is obtained. According to the method, the latex skim slurry obtained by processing and separating the natural latex is prepared into the agricultural biological agent which is used for agricultural production and soil and water environment restoration, the environmental pollution problem can be solved, furthermore, the yield of agricultural products can be raised, quality of the agricultural products can be improved, ecological environment quality can be improved, and obvious social benefits, economic benefits and ecological environment benefits are achieved.

The invention relates to a high-pressure and high-flow two-position four-way liquid control reversing valve. The liquid control reversing valve comprises a left end cover, a main valve body, a main valve element and a right end cover; the main valve element is arranged in the main valve body; and the left end cover and the right end cover are arranged at the two ends of the main valve body. The high-pressure and high-flow two-position four-way liquid control reversing valve with reliable height is suitable for medium / high-pressure systems; when the pressure of a valve port is reduced by 0.5 MPa, the flow can reach above 1600 L / min, so that the valve element can realize quick switching, stable movement and no impact, and the closing and opening switching time of the valve port is adjustable. The liquid control reversing valve is particularly suitable for controlling a hydraulic motor to realize startup of a high-speed winch and stable braking control.