65results about How to "Save on high costs" patented technology

The invention relates to the oil gas industry, particularly to a material hoisting and transportation device utilized in oil and gas field fracturing operation. The material hoisting and transportation device is characterized in that a material storage tank is mounted on the left of a frame body; an upper orbit is mounted at the upper part of the frame body; a lower orbit is mounted at the right end of the lower part of the frame body; a belt conveying device is mounted on the upper orbit and the lower orbit; a feeding hopper is mounted at the bottom of the belt conveying device; a hoisting device is mounted at the right end of the upper part of the frame body; the hoisting device is mounted in an operation orbit; a hook is mounted on the hoisting device; during operation, the belt conveying device can longitudinally move on the upper orbit and the lower orbit; and during operation, the hoisting device can longitudinally and transversely move in a horizontal plane. The material hoisting and transportation device has a one-key locating function, and automatic operation and locating of the belt conveying device and the hoisting device can be achieved through the function.

The invention relates to the field of geothermal exploitation and provides a single-well fracture gravity self-circulation dry-hot-rock geotherm mining method. According to the method, perforation holes of different depths are utilized, the fracture size of a dry-hot-rock reservoir is increased through a water jet technology and a size fracture technology, and accordingly the upper area and the lower area of the reservoir communicate efficiently through fracture cracks; low-temperature heat-carrying fluid flows to the dry-hot-rock reservoir along the perforation holes in the upper portion after being injected in an annular mode, and then flows to the fracture cracks of the lower area under the actions of displacement pressure and gravity caused by the potential-energy difference of the fracture cracks of the upper portion and the lower portion; and finally, under the action of a ground suction pump, the heated heat-carrying fluid flows back to the ground along the perforation holes in the lower portion via a heat insulating oil pipe. According to the single-well fracture gravity self-circulation dry-hot-rock geotherm mining method, geothermal exploitation is carried out by annular cyclic injection and production of the heat-carrying fluid through the single-well oil pipe, and the expenses for drilling two injection and production wells in the conventional dry-hot-rock geotherm mining process is greatly reduced; and meanwhile, through use of the highly heat insulating oil pipe, the heat loss caused when the heat-carrying fluid is mined out of the oil pipe is reduced, and the heat collection capacity of the heat-carrying fluid is greatly improved.

The invention discloses a high-precision map road information rapid generation system and method based on space-time trajectory reconstruction. The system comprises a track reconstruction module, a lane determination module, a lane separation module, a lane boundary line drawing module and a multi-data synthesis fusion module, wherein the track reconstruction module performs reverse space-time reconstruction of a vehicle driving track by utilizing the vehicle track information acquired by a roadside sensing unit and a vehicle-mounted unit, the lane determination module determines a lane according to a distance between vehicle driving tracks, the lane separation module draws a lane separation line at a midpoint of connecting lines of middle points of the adjacent single lane tracks, the lane boundary line drawing module draws a lane boundary line according to the vehicle driving track direction and the driving speed by taking the lane separation line as the reference and combining the road standard width and various line widths, and the multi-data synthesis fusion module fuses the collected roadside sign information with a map. The system is advantaged in that problems that an existing diversion high-precision map drawing process is complex, and special conditions of a road surface cannot be reflected in time are solved.

The invention, which belongs to the secret communication field, discloses a certificate-free generalized proxy signcryption method. The method comprises: a secret key generation center sets a system parameter; the secret key generation center generates a partial private key Di; a user generates a secret value based on the system parameter and sets a complete SKi according to the partial private key Di, and calculates a public key PKi; an original signer or signcryption person generates proxy authorization by using his / her private key and public key; and after a proxy signer or signcryption person verifies the proxy authorization successfully, generalized proxy signcryption processing is carried out on a message needed to be sent based on the proxy authorization, his / her private key, a public key of a receiving part, and the system parameter and then a result is sent to the receiver to carry out generalized proxy unsigncryption processing. According to the invention, proxy signature and proxy signcryption can be realized by the proxy signer or signcryption person only by using one pair of secret keys and one algorithm and security and / or authentication can be provided for the user. Moreover, on the basis of the certificate-free cryptosystem, a problem of secret key management can be solved and the high costs of public key management can be reduced.

This invention discloses a method for processing spinning, printing and dyeing waste water by a coal-water slurry production technology including a step of filtering spinning, printing and dyeing waste water, a step of determining the mixture ratio among desulfurizer, dispersant, clean water and waste water, a step of mixing slurrying, a step of stabilizing the slurry and a step of aging and storing coal-water slurries.

The invention relates to the technical field of underground mining, in particular to a natural caving method which is used for solving the problems that as for a mine where an ore body is firmer thanhanging side surrounding rock and heading side surrounding rock, during blasting mining, the safety accident rate is high, and the mining cost is high. The natural caving method comprises the following steps that artificial fracturing is conducted, specifically, according to geological data, the fracture distribution law and stress distribution data of a foundation, an ore body of a stope is artificially fractured; fracture monitoring is conducted, specifically, an artificial fracturing area is monitored, and thus the fracture distribution and extension ranges are obtained; and natural cavingis conducted, specifically, the ore body falls naturally. The natural caving method is suitable for mining of a mine where the ore body is firmer than hanging side surrounding rock and heading side surrounding rock.

The invention belongs to powder product field, and relates to a medical functional complex material with high curative effect. Said complex material comprises following raw materials: 66-96% of tourmaline ultra-micro powder and / or crystal infrared material ultra-micro powder, 0. 01-30% of dielectric strengthened material and 1-5% of embedding material, soft solid and hard solid material. It is used in the field of health-care, treatment and recovery, and can be used to produce medical apparatus.

The invention discloses a preparation method of a laser 3D-printed complex-configuration silicon carbide composite part. The preparation method comprises the following steps that (1) preparing composite raw powder for laser 3D printing, wherein the composite raw powder comprises, by volume percent, 10-70% of chopped carbon fibers, 20-70% of silicon carbide, 20-50% of organic resin with a carbon residue rate larger than 35%, and 5-20% of carbon black; (2) molding the composite raw powder into a silicon carbide composite biscuit with a complex configuration by adopting a laser 3D printing method; (3) degreasing the biscuit in a vacuum atmosphere to crack and carbonize the organic resin and form a degreased biscuit completely composed of inorganic matters; and (4) carrying out liquid-phase reaction siliconizing on the degreased biscuit in a vacuum environment to obtain the laser 3D-printed complex-configuration silicon carbide composite part.

The invention relates to a method for processing a double-angle hole of the body of an oil well logging instrument. The method is technologically characterized by comprising the following steps of: drawing a cross curve on the upper surface of the body according to a design drawing, wherein a crossing point of the cross curve is a processing point of the double-angle hole; then clamping a workpiece on an inclinable vice; rotating the inclinable vice according to a calculated projected angle alpha; and rotating a power head for a angle beta and processing after finding the processing point correctly. The invention achieves the purpose that the shaft line of the workpiece is coincided with a main shaft of a machine tool by converting the sum theta of two design angles of the double-angle hole of the body into actual rotation angles alpha and beta of a tooling, thereby enabling the processing of the double-angle hole to meet design requirement; in addition, the invention has simple tooling, is convenient for operation, and provides a more ideal process method for the processing of various holes at spatial location.

The present invention discloses a method for prolonging the service life of a boiler denitration system catalyst. The method comprises a) increasing the denitration system catalyst surface temperature before starting boiler ignition, wherein the denitration system catalyst surface temperature in the step a) is increased to more than or equal to the flue gas dew point temperature, and the step a) comprises a step a1) introduction of an external heat source into the boiler so as improve the denitration system catalyst surface temperature to more than or equal to the flue gas dew point temperature.

A method for actuating an automated transmission, in particular an automated transmission of a commercial vehicle, which is coupled to a drive motor, where data and / or signals are supplied to a controller of the automated transmission via an interface. When a defined event occurs, a temporally predictive non-steady profile of the drive motor torque for this event is transmitted to the controller of the automated transmission. The transmission controller ascertains and / or specifies a transmission shifting strategy on the basis of the transmitted data. There is also provided an apparatus for actuating an automated transmission, and also a test bench.

The invention discloses a high-precision insulin injector and application thereof, and relates to the technical field of medical apparatuses. According to the technical scheme, the high-precision insulin injector is characterized by comprising an injection needle and an injection needle cylinder, scale lines for representing the medicine dosages are arranged on the injection needle cylinder and include long metering lines, short metering lines and longitudinal metering linkage lines, the distance between every two adjacent short metering lines represents one international unit medicine dosage, the distance between every two adjacent long metering lines represents five international unit medicine dosages, a pressurizing injection cylinder sleeves the outer wall of the injection needle cylinder and internally provided with an injection push rod, a pressurizing thread sleeves the injection push rod, a rubber sealing piston is arranged at one end of the injection push rod, the end, located outside the pressurizing injection cylinder, of the injection push rod is provided with a rotary pressurizing handle, and the end of the pressurizing injection cylinder is provided with a rotary wedge-shaped ruler movably connected with the outer wall of the injection needle cylinder. The international unit dosage of absorbed insulin injection can be directly read; meanwhile, a small international unit dosage of insulin injection can be precisely absorbed.

The invention relates to a hydraulic panel bulging device with a multipoint female groove. The hydraulic panel bulging device with the multipoint female groove comprises an upper mold and a lower mold, wherein the upper mold is provided with a liquid chamber corresponding to a cavity; a big through hole is formed in the middle of the lower mold; a back pressure mold connected with an ejecting cylinder is slidably arranged in the big through hole in a sealing way; positioning holes for installing small punches are formed in the upper surface of the back pressure mold; the small punches are uniformly distributed and tightly arranged; and the groove with the same shape as the bottom surface of a panel parts required to be manufactured is formed in the upper surfaces of the punches with same or different heights. A method for manufacturing a deep-cavity panel parts through using the hydraulic panel bulging device comprises the steps of S1, installing a panel blank; S2, installing the multipoint female groove; S3, exhausting and charging; S4, enabling the back pressure mold to close to the bottom surface of the panel blank; S5, carrying out initial contact molding; S6, drawing the mold for forming; S7, maintaining pressure; and S8, discharging oil and opening the mold. The bulging device can be applicable for producing panel pieces in different shapes without the need for replacing the mold, so that the cost is saved, the method is simple to operate and easy to control, the materials are saved, the efficiency is high, the occurrence of the phenomenon that the materials are cracked can be effectively avoided, and the bulging depth and the forming quality of the product are improved.

The invention provides an offshore non-adiabatic isobaric double-container compressed air energy storage system and method. A motor for driving a compressor unit to do work is connected to a power input end of the compressor unit. A generator is connected to a power output end of an expander unit. A valve of a gas inlet of a low-pressure gas bag is connected with a gas outlet of the expander unit,and a valve of a gas outlet of the low-pressure gas bag is connected with a gas inlet of the compressor unit. A valve of a gas inlet of a high-pressure gas bag is connected with a gas outlet of the compressor unit, and a valve of a gas outlet of the high-pressure gas bag is connected with a gas inlet of the expander unit. The low-pressure gas bag and the high-pressure gas bag are both arranged below the sea surface with the depths unchanged. When energy is stored, the motor drives the compressor unit to do work, and gases in the low-pressure gas bag enter the high-pressure gas bag; and when the energy is released, the high-pressure gases in the high-pressure gas bag do work on the expander unit and drive the generator to generate electricity, and the gases that complete the work enter thelow-pressure gas bag. The compression process is significantly shortened and the energy utilization efficiency of the energy storage system is improved.

The invention discloses an adjusting and supporting type mounting tool for a semi-submerged platform propeller. The adjusting and supporting type mounting tool comprises steel structure frame type supporting platform (1) which is surrounded with enclosing plates (3), telescoping supporting legs (4) which are vertically arranged around the supporting platform (1) in a penetration manner, and a semi-submerged platform propeller seabed supporting tool which is positioned at the upper part of the supporting platform (1). According to the adjusting and supporting type mounting tool for the semi-submerged platform propeller, the propeller is positioned on a semi-submerged platform propeller seabed supporting tool platform, and a supporting structure for supporting the propeller is arranged at the upper part, so that the propeller can be uprightly stably positioned at the seabed; the supporting structure can be put down, so that the height of the supporting tool can be reduced to be less thanthe mounted propeller, and thus a ship can be moved; the mounting period of the propeller of a semi-submerged drilling platform is reduced while high seabed treatment cost is saved.

The invention discloses a flight device and a flight method thereof. The flight device comprises an aircraft and a traction device used for pulling the aircraft to the air. The aircraft is provided with the air power lifting surface and a flight driving device used for providing flight power for the aircraft. The traction device comprises a traction body and a traction rope connected with the traction body and the aircraft. The flight device further comprises a flight attitude adjusting device. When the traction rope is separated from the aircraft in the air, the flight attitude adjusting device adjusts the flight attitude of the aircraft, and the aircraft flies under the effect of the flight driving device and the air power lifting surface. According to the flight device designed through the mode, the high cost of ground runway construction is saved, the flight cost is reduced greatly, and take-off of the aircraft is facilitated.

The invention discloses a key-phase-free angular domain period segmentation method for a reciprocating compressor signal, and belongs to the technical field of reciprocating compressor fault diagnosis. According to the method, in order to solve the problem that fault diagnosis analysis cannot be carried out due to the fact that key phase signals are abnormal or even lost in actual reciprocating compressor online monitoring, signal full-period interception is completed by excavating effective information inside the signal. The method comprises the following steps of 1) obtaining a vibration signal and converting into an image; 2) determining the size of an interception window; 3) identifying air valve opening impact; and 4) calculating a phase of air valve opening and intercepting whole-period signals. According to the method, full-period re-segmentation is carried out on collected original signals of a compressor under the condition that a key phase sensor is not installed or the key phase sensor breaks down, while the high cost of key phase equipment is saved, the problems that an online monitoring system cannot conduct effective diagnosis and an air flow regulation and control system fails due to monitoring equipment faults are avoided, and the reliability of a compressor monitoring regulation and control system is effectively improved.

The invention discloses a method for casting a small-specification copper rod based on upward casting. Firstly, the temperature of an upward casting holding furnace is adjusted to range from 1116 DEG C to 1118 DEG C and is increased to 1120 DEG C; and secondly, an extruded copper guide rod is inserted into a baked mold from an upper end opening and extends from a lower end opening of the mold, the mold is inserted into molten copper, the tail end of a graphite protection sleeve in the mold is positioned above the liquid level of the molten copper, the mold is fixed, the copper guide rod is clamped by an existing method, upward casting is started, when the small-specification copper rod to be cast comes out of the upper end opening of the mold, the upward casting temperature is adjusted to range from 1116 DEG C to 1118 DEG C, and the small-specification copper rod is cast. By the aid of the method, the small-specification copper rod with the diameter of 6-7mm can be directly cast from upward casting equipment, secondary extrusion is omitted, the oxygen content of the small-specification copper rod obtained by means of secondary machining is reduced, production efficiency is improved, and production cost is reduced.

The invention discloses paint for automobile thermoplastic plastic parts as well as a preparation method and application of paint. The paint is prepared from the following components in parts by weight: 7 to 9 parts of aluminum powder, 8 to 10 parts of methylisobutylketone, 56 to 60 parts of elastic polyurethane resin, 7 to 9 parts of wax and 15 to 20 parts of diluting agent. The preparation method comprises the following steps: (1) stirring and uniformly mixing aluminum powder, methylisobutylketone and elastic polyurethane resin at a high speed; (2) adding the diluting agent, stirring at a middle speed, and dissolving solutes; and (3) adding the wax, stirring at a high speed until the wax is uniformly mixed with other components; and filtering to obtain the paint for the automobile thermoplastic plastic parts. The paint has the advantages of high adhesion, high ornamental performance, high corrosion resistance and the like.

The invention relates to a method for solving the problem of energy supply of electric vehicles (cars), belonging to the field of transportation. The following technical scheme is adopted in the invention: electric vehicle (car) energy supply enterprises are founded to carry out sale, leasing, maintenance, charging and the like of all types of batteries of the electric vehicles (cars); charging stations are distributed in the cities in the form of networks and are arranged in each rural town; charging service areas are arranged on the expressways according to the travelled distance of the electric vehicles (cars) after the electric vehicles (cars) are charged; and attended or unattended self-service charging equipment is arranged in the parking lots and garages, thus solving the problem of energy supply of the electric vehicles (cars). The method has the effect of ensuring the ordinary people to use the electric vehicles (cars) with low cost so that the electric vehicles (cars) are popularized.

The invention discloses a novel composite filter for blocking silt and particles smaller than the silt, belonging to the technical field of geothermal heating. The novel composite filter comprises a filter body, a first flow slowing plate, a second flow slowing plate, a sand removing mechanism, a water inlet pipe, a filtering unit, a water outlet pipe, a settling layer and a box door, wherein thewater inlet pipe is fixedly arranged on one side of the filter body, the water outlet pipe is fixedly arranged on the other side of the filter body, and the first flow slowing plate is movably arranged on the inner wall of the filter body. Through arrangement of the sand removing mechanism, the filter is enabled to settle micro-silt onto a sand guiding plate through the settling effect of the settling layer; after the filter is stopped, a baffle is pulled through an inserting block, and then the micro-silt is discharged through a silt discharging opening, so the filter effectively discharges the micro-silt filtered in the device and has a remarkable effect on particles which are difficult to treat in the centrifugal process of a cyclone desander, the high cost of a coarse filter and a precise filter can be saved, and the practicability of the filter is improved.

The invention discloses a method and device for preparing carbon-coated metal nanoparticles in liquid nitrogen through an electric arc. The method comprises the following steps that the end surface of one end of a metal rod makes contact with the end surface of one end of a graphite rod and is immersed in liquid nitrogen; the metal rod is connected to one electrode of a direct-current power supply, and the graphite rod is connected to the other electrode of the direct-current power supply; the graphite rod and the metal rod are separated to an experiment spacing distance, an electric arc is generated between the graphite rod and the metal rod, the electric arc is maintained in the liquid nitrogen or in a gas atmosphere introduced into the liquid nitrogen until the time required by the experiment is reached so as to obtain the liquid nitrogen containing the carbon-coated metal nanoparticles, wherein the end surface of one end of the graphite rod and the end surface of one end of the metal rod are always located below the liquid level of the liquid nitrogen; and a collecting agent is added into the liquid nitrogen containing the carbon-coated metal nanoparticles, and after the liquid nitrogen is completely volatilized, the collecting agent is dried to obtain the carbon-coated metal nanoparticles. The method is simpler to operate, high in production efficiency and lower in cost.

The present invention provides a method for 3D inkjet printing, which comprises: a preheating step: an external heating source is used to heat a main body layer composed of a first composition to a first temperature, wherein the main body layer has a thickness of 10 μm to 500 μm and a unit density of 0.1 to 1.0 g / cm3, and the first temperature is less than the melting point of the first composition; a heating step: a second composition is applied to the surface of the first composition at the first temperature of the composite to proceed an exothermic cross-linking polymerization, so that the main body layer is heated to a second temperature to become a molten state; and a cooling step: the main body layer in the molten state is cooled down and solidified to form.

The invention belongs to the technical field of decentralized storage security, and discloses a decentralized storage method and system supporting data dynamic and public integrity auditing, and the method comprises the steps: initializing user public and private parameters according to a Setup protocol, and carrying out the preprocessing of user data according to an erasure code; processing the data by the client according to a Put protocol, generating a verification tag, and uploading the data and the verification tag to a plurality of decentralized servers; when a user wants to download data, a Get protocol is triggered; when a user wants to verify the integrity of outsourcing data, triggering a Challenge protocol and a Verify protocol; and when the user wants to update the outsourcing data, triggering the Dynamics protocol. According to the method, a user or a third party is supported to perform integrity auditing on user data, malicious verification between the third party and the server side is effectively prevented by utilizing the block chain in the verification stage, and the verification efficiency is improved; and a user is supported to carry out block-level dynamic updating operation on the data.

A keyless phase angle domain period segmentation method of a reciprocating compressor signal belongs to the technical field of fault diagnosis of a reciprocating compressor. Aiming at the problem that the key phase signal is abnormal or even lost in the actual on-line monitoring of the reciprocating compressor, the fault diagnosis and analysis cannot be carried out, and the whole cycle interception of the signal is completed by mining the effective information inside the signal itself. It includes steps: 1) obtaining vibration signals and converting them into images; 2) determining the size of the interception window; 3) identifying the opening impact of the air valve; 4) calculating the phase of the air valve opening and intercepting the whole cycle signal. The method realizes the whole cycle re-segmentation of the collected compressor original signal without installing the key-phase sensor or the failure of the key-phase sensor. It saves the high cost of key-phase equipment and avoids the failure of the online monitoring system to perform effective diagnosis and the failure of the gas volume control system due to the failure of the monitoring equipment, which effectively improves the reliability of the compressor monitoring and control system.

A lightning protection apparatus used for an overhead line comprises: a bough lightning protection needle vertically mounted at the top end of an overhead line steel tower, and at least one branch lightning protection needle layer arranged at intervals along a needle body of the bough lightning protection needle from top to button, wherein each branch lightning protection needle layer comprises a plurality of branch protection needles, and each branch lightning protection needle is at an included angle of smaller than 90 degrees with the bough lightning protection needle to extend diagonally and upwards. According to the lightning protection apparatus, a lightning protection way of conducting lightning to the apparatus is fundamentally changed; the risk of lightning stroke can be effectively reduced; and the apparatus is simple in structure, low in cost, does not need to be grounded, and is easy to popularize and apply.

The invention relates to the technical field of automobile parts, and specifically discloses a beam assembly. The beam assembly includes: a suspension beam; a front spring and a rear support beam assembly are integrally formed by casting. The front spring and rear support beam assembly includes: a front spring The rear support beam, the front spring and the rear support beam include a bottom plate and a side plate, and the opposite ends of the bottom plate are connected with side plates; the frame fixing part is used for connecting with the frame, and the two side plates are connected with the frame fixing part ;The rear suspension bracket of the cab is used to connect the rear suspension of the cab, and the two frame fixing parts are connected with the rear suspension bracket of the cab; the suspension beam bracket is used to connect the suspension beam, the rear of the two cabs The suspension brackets are all connected with suspension beam brackets, the suspension beam, the frame fixing part and the front spring rear bracket beam form a ring structure; the leaf spring lifting ring bracket is used to connect the leaf spring lifting ring, and both side plates are provided with plates Spring Ring Bracket. The torsional rigidity of the beam assembly is high, the outer width is high precision, the production cost is low, and the layout of the chassis is optimized.