84results about How to "Low starting pressure" patented technology

A one-way valve comprises a seat and a membrane having an inner portion that is stretched over the seat, wherein, in use, the inner membrane portion is selectively deflected from the seat such that a fluid path is created from one side of the membrane to the other so as to open the valve, and wherein an outer peripheral portion of the membrane is stiffer than the inner portion such that the membrane deflection is substantially restricted to only the inner portion. The one-way valve may be used in a pump for an infusion system.

The invention provides a water lock removal agent for removing the water lock damage of a low-water-content oil well.The water lock removal agent is composed of nanometer silicon dioxide and ehtylene glycol monobutyl ether with initial granularity of 15-30 nm, wherein the weight of nanometer silicon dioxide accounts for 1-5% of the total weight.When the volume ratio of the water lock removal agent to water is 1:1, the oil phase and the water phase can be changed into one phase through the water lock removal agent within 6 hours by solubilizing the water phase and the oil phase, and therefore the permeation resistance of the two phases is eliminated; by means of the nanometer silicon dioxide, the hydrophily of rock surfaces can be enhanced, free water is adsorbed to rock surfaces to form water films, and therefore the relative permeation rate of the oil phase is increased, and the permeation start pressure of the oil phase is reduced.For the oil well suffering from water lock damage, the water lock removal agent with the same volume as the leakage volume is injected into a stratum through oil sleeve annulus according to the flushing fluid leakage volume recorded in the flushing work process; by closing the well for 6 hours or above and then opening the well for production, the water lock damage of the low-water-content oil well can be effectively relieved.

The invention provides a high-uniformity damping rotating nozzle, and belongs to the technical field of irrigation nozzles. The high-uniformity damping rotating nozzle comprises a nozzle outer shell, a rotating assembly and a water spraying assembly, wherein the rotating assembly and the water spraying assembly are arranged in the nozzle outer shell. The water spraying assembly comprises a guide plate, a spraying plate and a water scattering plate assembly, wherein the guide plate, the spraying plate and the water scattering plate assembly are communicated in sequence. After water passes through an arc passageway on the spraying plate, the spraying plate rotates, water scattering needles on the water scattering plate can block part of water flow sprayed out of the spraying plate, and then water can be scattered within the far and near range of the nozzle. The high-uniformity damping rotating nozzle has the advantages that cleaning and maintenance are convenient, and reliability is high; the rotating speed is stable, extremely-high vibration prevention capacity and wind resistance are achieved, the phenomena that when an existing nozzle conducts spraying, an installed vertical rod shakes and water drops are splashed from the vertical rod of the nozzle are avoided, the irrigation uniformity is higher, and the atomization effect is good during high-pressure spraying; the range is wide, starting pressure is low, and the requirements for different irrigation ranges and different irrigation flow rates can be met; cost is lower, performance is reliable, the service life is long, and the nozzle not only can be applied to the fixed spray irrigation aspect, but also can be applied to the movable spray irrigation aspect.

The invention relates to a water block removal agent and a preparation method thereof. The water block removal agent at least comprises the following components in percentages by mass: 0.1-0.5% of first modified nano silicon dioxide modified by a lipopeptid biological surfactant, 0.5-1.0% of second modified nano silicon dioxide modified by a fluorocarbon surfactant, 10-30% of ethylene glycol and the balance of water, wherein the first modified nano silicon dioxide, the second modified nano silicon dioxide, ethylene glycol and water are injected in proportion through injection equipment of the water block removal agent and the components are mixed in the injection equipment to form the water block removal agent. The water block removal agent provided by the invention has the advantages of being convenient to prepare, strong in surface activity, high-temperature-resistant, high-salt-resistant, strong in rock absorption, low in cost and the like.

The invention discloses a multi-partition logistics apparatus which comprises a compartment, a refrigerating unit, an evaporator and an engine energy recovery device. The compartment is sequentially divided into a freezing chamber, a refrigeration chamber and an insulating chamber through insulation boards front left to right. The refrigerating unit is mounted at the front end of the freezing chamber and used for refrigeration. The evaporator of the refrigerating unit is arranged in the freezing chamber and used for exchanging heat with air in the freezing chamber. Each insulation board is provided with an electrically controlled louver and used for controlling the temperatures in the three chambers by being matched with a solar heat collecting plate on the roof. The freezing chamber, the refrigeration chamber and the insulating chamber are each provided with a temperature sensor. The logistics apparatus is driven by an engine, and the engine energy recovery device is used for recovering heat of engine exhaust. The multi-partition logistics apparatus is simple in structure and practical and can transport objects while freezing and refrigerating the objects and keeping the objects fresh, and transporting quality is guaranteed; engine exhaust gas energy of the logistics apparatus can be secondarily utilized, so that energy is saved and environment is protected.

The invention belongs to a fracturing fluid additive, and in particular relates to a formulation of a gas-well water-lock damage treating agent. The formulation is characterized in that the treating agent is formed by matching the following components in weight percentage: 20.0 to 25.0 percent of benzyltributylammonium bromide or benzyltributylammonium chloride as a main agent, 2.0 to 5.0 percent of polyoxyethylene nonyl phenyl ether or sucrose fatty acid ester as nonionic surfactant, 0.5 to 1.0 percent of SR18Y fluorocarbon surfactant produced by Shaanxi Senrui Science and Technology Co., Ltd, 12.0 to 15.0 percent of dodecyl benzyl dimethyl ammonium chloride or hexadecyl trimethyl ammonium bromide as cationic surfactant, and the balance being distilled water. The gas-well water-lock damage treating agent prepared according to the formulation has the advantages of reducing gas-well water-lock damage, lowering starting pressure, improving the gas phase permeability of rock cores and protecting reservoirs.

The invention relates to a front acid liquid, which is applied to the oil well front acid sand fracturing. The invention is characterized in that the front acid liquid comprises the components by the weight percentages as follows: chlorhydric acid 1.0 to 2.0 percent; acetic acid 4.0 to 8.0 percent; formic acid 1.0 to 2.0 percent; CF-5C 0.4 to 0.7 percent; citric acid 0.08 to 0.12 percent; HJF-94 0.95 to 1.15 percent; COP-1 0.3 to 0.5 percent; clean water for the other. Through the front acid sand fracturing processing of the invention, the connectedness between the container rock and the crevasse and between the inner parts of the crevasses can be improved, therefore the connectedness between the container rock and the mineshaft, and the fracturing can be enhanced to improve the effect of the oil well.

The invention relates to a synthesis method of a nano calcium carbonate-starch composite, belonging to the temporary plugging / shielding technique of reservoir protection. Starch and succinyl oxide react in water phase environment under the catalysis of NaOH, nano calcium carbonate is added 1 to 1.5 hours after the reaction, and glacial acetic acid is used for neutralization. The nano calcium carbonate-starch composite is obtained through purification and vacuum drying. The method provided by the invention has the characteristics of reacting at normal pressure, simple production process, low reaction temperature of between 30 and 50 DEG C, and simpleness and convenience for a purification method due to the use of low-toxicity solvent; and the nano calcium carbonate-starch composite with high purity can be obtained.

The invention belongs to a fracturing fluid additive, and in particular relates to a gas-well water-lock damage treating agent. The agent is characterized in that the treating agent is formed by the following components in weight percentage: 15.0 to 20.0 percent of 2, 3-epoxypropyltrimethylammonium chloride as a main agent, 4.0 to 7.0 percent of nonionic surfactant, 0.5 to 0.8 percent of fluorocarbon surfactant, 5.0 to 8.0 percent of cationic surfactant, and the balance being distilled water. The nonionic surfactant is octylphenol polyoxyethylene ether or dodecyl phenol polyoxyethylene ether. The fluorocarbon surfactant is SR18Y fluorocarbon surfactant which is a product of Shaanxi Senrui Science and Technology Co.,Ltd. The cationic surfactant is di-8 / 10 alkyl dimethyl ammoniumbromide or tetradecyl dimethyl benzyl ammonium. The gas-well water-lock damage treating agent has the advantages of reducing gas-well water-lock damage, lowering starting pressure, improving the gas phase permeability of rock cores and protecting reservoirs.

The invention relates to a capillary pressure regulator with stable pressure-regulating performance. The capillary pressure regulator is characterized by comprising an upstream shell, a downstream shell, a baffle, a flat support, a T-shaped pressure-regulating component and a pressure-regulating spring, wherein the upstream shell comprises a first cylindrical section, a conical diffusion section and a second cylindrical section which are sequentially and integrally arranged; the downstream shell comprises a third cylindrical section and a fourth cylindrical section which are integrally arranged; the third cylindrical section is connected with the second cylindrical section; a plurality of gas ports are formed in the circumferential direction of the third cylindrical section at intervals; the baffle comprises a first rounded body and a cylindrical structure; the middle of the first rounded body is provided with a through cylindrical structure and an impermeable central hole; a plurality of water inlet holes which are communicated with the central hole are formed in the circumferential direction of the cylindrical structure; the first rounded body is arranged in the second cylindrical section; the cylindrical structure stretches into the conical diffusion section; the flat support is arranged in the second cylindrical section; the middle of the flat support is provided with a round hole of which the diameter is the same as that of the central hole of the baffle; the T-shaped pressure-regulating component comprises a second rounded body and a cylinder; the cylinder penetrates through the round hole on the flat tray and the central hole on the first rounded hole; and the pressure-regulating spring is sleeved on the cylinder of the T-shaped pressure-regulating component.

The invention discloses a high-frequency loading servo vibration hydraulic cylinder which comprises a cylinder barrel, a cylinder end, a piston and a piston rod, wherein the cylinder barrel is connected with the cylinder end, the piston and the piston rod are arranged in the cylinder barrel, liquid hydrostatic bearing supporting structures are adopted at the two ends of the piston rod, a hydrostatic bearing is fixed to the cylinder end and supports the piston rod, a servo valve block is arranged above the cylinder barrel and provided with two servo valves which are connected in parallel, and a displacement sensor is arranged on one side of the cylinder barrel of the hydraulic cylinder. The high-frequency loading servo vibration hydraulic cylinder has the advantages of overcoming defects of a traditional cylinder under special conditions, being little in frictional resistance, reductive in starting pressure, short in response time, good in damping prevention property and oil liquid temperature control property, stable in motion and the like.

The invention relates to a preset pressure-adjustable capillary pressure adjuster, which is characterized by comprising an upstream shell, a downstream shell, a control body, a pressure adjusting assembly and a pressure adjusting spring, wherein one end of the upstream shell is provided with a water inlet; the pipe diameter of the other end of the upstream shell is enlarged; the downstream shell comprises a first cylinder and a second cylinder; the end part of the first cylinder is connected with the pipe diameter enlarged end of the downstream shell; circumferential threads of the control body are connected with the interior of the first cylinder; the middle part of the control body is provided with a through hole; one end of the pressure adjusting assembly is a conical closed end; the other end of the pressure adjusting assembly is an open end; the outer diameter of the open end is enlarged; the pressure adjusting assembly is provided with water inlets near the position of the conical closed end; the pressure adjusting assembly is arranged in the first cylinder; water stop assemblies are arranged between the circumferential direction of the open end of the pressure adjusting assembly and the circumferential direction of the first cylinder; the conical closed end of the pressure adjusting assembly passes through the through hole on the control body; the water inlets near the conical closed end are located in a cavity formed by the upstream shell and the control body; another water stop assemblies are arranged between the pressure adjusting assembly and the control body; and the pressure adjusting spring is sheathed with the periphery of the cylinder of the pressure adjusting assembly.

A real-time online distributive calculation frame implementing method includes steps of 101, sharing JVM (java virtual machine) resources in a MapReduce address space of JVM, wherein the JVM resources include stacks, middleware downloading the stacks and applications operating the stacks; 102, resetting the JVM by the shared JVM resources, to be specifically, initializing the JVM, reusing the middleware and / or sharing the applications; 103, implementing online distributive calculation frame by resetting the JVM. In an affair processing environment of a large-scale cluster operation system, the durable reusable Java virtual machine can accelerate processing speed of Java applications. The durable reusable JVM can increase input and output of affair processing in these environments by providing the following functions, and startup time of MapReduce tasks used for processing massive data is greatly shortened.

The invention provides a diaphragm pump system with liquid or gas as power. The system comprises single-acting diaphragm pumps pairwise arranged, a direction control valve, a communicating pipeline, a fluid power source and the like; each single-acting diaphragm pump includes a pump shell, a diaphragm or piston for separating a working medium from a conveying medium to form corresponding working cavity and conveying cavity, a signal valve, a feed one-way valve and a discharge one-way valve mounted on the conveying cavity, a flow inlet / outlet pipe mounted on the working cavity, an anti-leakage isolation diaphragm mounted on the inner side wall of the pump shell of the conveying cavity and sleeved out of a signal valve trigger piece and the like; the trigger pieces of signal valves are inserted in the inner sides of the pump shells of the conveying cavities; and control signals output by all the signal valves are communicated with corresponding control ends of the direction control valve. The system is used for conveying various materials, can realize utilization of residual pressure and reduction of the noise, eliminates the back pressure resistance, reduces the starting pressure, improves the pump operation efficiency and the like.

The invention discloses a hydraulic system hydraulic cylinder structure meeting higher frequency response requirements and suitable for limited installation space. By integrating a hydraulic cylinderand a valve block, a cylinder barrel of the hydraulic cylinder is integrated with the valve block, so that the problems of connection, positioning and end surface matching of the hydraulic cylinder and the valve block are eliminated, and a servo valve with determined performance is flexibly matched; and a linear bearing and a piston rod are in contact in the form of a rolling pair. According to the hydraulic cylinder structure, the sliding friction force between the piston rod and the bearing can be eliminated, and the starting pressure of the hydraulic cylinder is reduced, so that the movingfrequency of a hydraulic system is increased, and the higher frequency response requirements compared to a traditional contact-type supporting mode are met; the hydraulic cylinder is integrated with the valve block, so that the size of the hydraulic cylinder is reduced, and the hydraulic cylinder is suitable for occasions with limited space; and the performance of the servo valve is selectable compared with the integration of the hydraulic cylinder and the servo valve, so that both low cost and good performance are achieved.

The present invention relates to the technical field of switch machine manufacturing, in particular to a guide-rail piston rack for an electro-hydraulic switch machine, which includes a rack body. Both sides of the rack body are respectively provided with V groove, the lower part of the rack body is provided with an inclined surface, the rack body is slidingly fitted with the inner wall of the oil cylinder seat, and the inner wall of the oil cylinder seat corresponds to the V-shaped groove and the inclined surface. A groove, steel balls are arranged in the groove. The guide rail type piston rack used in the oil cylinder of the present invention changes the previous sliding friction into rolling friction. The friction force is also relatively reduced, the driving power is reduced, and the wear is reduced. The calculated maximum load capacity can reach 300 kg force, which reduces the starting pressure of the oil cylinder, improves the mechanical efficiency and ensures the service life of the oil cylinder.

The invention discloses a high-performance bulldozing device. The high-performance bulldozing device comprises a cab, a hydraulic rod, a bulldozing hopper, a cross beam, a stand column, a vibrating plate, a driving crawler belt and an engine energy recovering device, wherein the bulldozing hopper is connected with the cab through the hydraulic rod; the cross beam is located below the hydraulic rod, and one end of the cross beam is hinged to the bulldozing hopper; one end of the stand column is hinged to the cross beam, the other end of the stand column is connected with the vibrating plate, and a vibrating motor is arranged in the vibrating plate; and the driving crawler belt is driven by an engine, and the engine energy recovering device is used for recovering the energy of tail gas of the engine. The high-performance bulldozing device is simple and practical in structure, soil can be compacted through the vibrating plate after bulldozing, and operation is convenient; and in addition, the energy of the exhaust gas of the engine can be reutilized, energy is saved, and environmental friendliness is achieved.

The invention relates to a pneumatic long-stroke actuating mechanism and a control method thereof. The pneumatic long-stroke actuating mechanism comprises a rack, a cylinder, a manual device and a control device, wherein a rotatable main shaft is arranged at the top part of the rack, one end of the main shaft is fixedly connected with a swinging arm, and the middle part of the main shaft is connected with a driving swinging arm; the cylinder is arranged at the lower part of the rack, the control device controls the movement of a piston of the cylinder, and a piston rod of the cylinder is fixedly connected with the driving swinging arm; and the manual device is arranged at the top part of the rack and is connected with the main shaft in a separable-transmission manner by an eccentric wrenching wheel and a worm gear. The control method comprises the following step of carrying out signal breaking, power off and air-source cutting off for protection on the actuating mechanism. The pneumatic long-stroke actuating mechanism has the advantages of strong stability, high accuracy, compact structure, light weight and convenience in installation, can be convenient to realize manual-automatic control switching, can be widely applicable to industrial departments such as power, petrochemistry, metallurgy and the like, and is especially suitable for being installed and used in high-temperature and vibrating environments.

The invention specifically discloses a direct-action type lateral flow regulator which comprises a water-in connector connected with a water-in pipe, a water-out connector connected with a water-out pipe and a valve core, wherein the water-in connector and the water-out connector are both of a hollow tubular shape; a vertical cylindrical inner cavity is arranged in a shell; the lower end of the water-in connector is fixedly connected with the upper end of the shell; the left end of the water-out connector is fixedly connected with the side wall of the shell; the valve core comprises a shell, an extension spring, a piston sealing ring and a piston disc; the valve core is positioned in the inner cavity; a rotation center axis of the piston disc is coaxial with the rotation center axis of the inner cavity; the piston sealing ring is arranged between the piston disc and the inner cavity and sleeves the peripheral side surface of the disc body; the two ends of the extension spring are welded on the water-in connector and the piston disc respectively; and a sealing cover is arranged in the inner cavity of the shell. The regulator is simple in structure and quick and sensitive in response; and since the valve core directly contacts with the incoming water, the starting regulation pressure is relatively low.

The invention relates to the technical field of lithium ion battery recycling, in particular relates to a pole column removing device for recycling waste lithium ion batteries. The pole column removing device for recycling the waste lithium ion batteries comprises a platform and a clamping mechanism, wherein the platform is used for holding a core; a core fixing structure for fixing a core is arranged on the platform; the clamping mechanism is used for clamping a battery top cover; a torsion driving mechanism for driving the platform and the clamping mechanism to rotate oppositely so as to screw off the battery top cover is in transmission connection with the platform and / or the clamping mechanism. By adopting the pole column removing device, a pole column and the battery top cover can be conveniently and rapidly separated from the core, and moreover, the core is prevented from short circuit.

The invention discloses an air starting motor double-turbine driving device. The air starting motor double-turbine driving device comprises a shell provided with an air inlet pipe connecting port and an exhaust port, and a primary turbine, a guide wheel, a secondary turbine, an end cover and a main shaft which are arranged in the shell, wherein the primary turbine, the guide wheel and the secondary turbine are connected to the main shaft in sequence; the outer side of the end cover is connected with the shell through a seal ring, an air inlet and injection ports communicated with the air inlet are formed in the inner side of the end cover; the air inlet is connected with the air inlet pipe connecting port, and the injection ports are formed in the circumferential face of the end cover; V-shaped first grooves formed in the circumferential face of the primary turbine are distributed in the circumferential direction; converted V-shaped reversing grooves formed in the circumferential face of the guide wheel are distributed in the circumferential direction, and the guide wheel is fixedly connected into the shell; V-shaped second grooves formed in the circumferential face of the secondary turbine are distributed in the circumferential direction. The air starting motor double-turbine driving device has the advantages of high power, low air consumption, high efficiency, large torque, low voltage drop and small starting pressure.

This patent specifically discloses a capillary pressure regulator, including an upstream casing, a downstream casing and a pressure regulating assembly. The upstream casing is in the shape of a hollow barrel, and the outer wall of the lower end of the upstream casing is provided with external threads. The downstream casing is in the shape of a hollow barrel. External threads are provided on the outer wall of the left end of the downstream housing. The pressure regulating assembly includes a housing, a baffle and a rubber ball. The housing is formed with a hollow cavity. The upper part of the housing is provided with a thread that is threadedly connected with the upstream housing. The side of the shell is provided with a threaded hole threaded with the downstream shell, the upstream shell, the downstream shell and the cavity of the shell are connected, the baffle is placed in the cavity and hinged on the shell, the rubber ball is placed Inside the cavity and below the baffle. The pressure regulator has a low starting pressure due to its sensitive response, which not only satisfies agricultural irrigation, but also uses rubber balls as elastic recovery parts to be more reliable.

The invention discloses a bridge construction device based on thermal cycle. The bridge construction device based on thermal cycle comprises an operating room, crawler belts, a suspension arm, a lifting hook, an upright rod, an illumination lamp, an excavation arm and an engine energy recovery device. The illumination lamp is connected with the operating room through the upright rod; the lifting hook is fixedly connected to one end of the construction device through the suspension arm, and the excavation arm is disposed at the other end of the construction device; the crawler belts are driven through an engine; and the engine energy recovery device is used for recovery of heat of engine tail gas. The bridge construction device based on thermal cycle is simple in simple and practical; an excavator and crane are perfectly integrated, so that the economic cost is greatly reduced; meanwhile, multiple functions are achieved, the practicability is high; the bridge construction device is flexible, easy to change and suitable for bridge and road construction; and the engine waste gas energy can be reutilized, so that energy saving and environment protection are achieved.

The invention discloses an efficient energy-saving sewage treatment device.The device is improved from an automobile as a whole.The device comprises a carriage, sewage treatment equipment installed in the carriage, and an engine energy recycling system.The carriage comprises a plurality of reaction chambers.The sewage treatment equipment comprises a pump, a solid-liquid separation pond, an oil isolation pond, a biochemical pond, a filtering pond, a settlement pond, a clean water return pond and a sterilization pond which are sequentially connected through pipelines.Sewage is sequentially treated according to the sequence.The sewage treatment device has the advantages of being high in flowability, small in energy consumption, high in efficiency and the like.

The invention discloses an oil injector capable of adjusting the oil outlet volume. The oil injector comprises an oil injecting unit and an oil storage unit, the oil injecting unit comprises a main measurement cylinder, a main measurement plunger and a first spring, wherein the main measurement cylinder comprises a first cavity, a second cavity and a third cavity, the first cavity, the second cavity and the third cavity are communicated with one another in sequence along the axis of the main measurement cylinder, the main measurement plunger is arranged in the main measurement cylinder, the first cavity is communicated with a hydraulic oil source, the oil storage unit comprises an oil storage cylinder, a display rod and a second spring, the oil storage cylinder comprises a fourth cavity and a fifth cavity, the fourth cavity and the fifth cavity are communicated with each other in sequence along the axis of the oil storage cylinder, the display rod is arranged in the oil storage cylinder, and the fourth cavity is communicated with an oil through pipeline. The oil injector capable of adjusting the oil outlet volume at least has the following advantages that the oil injector outputs oil whether under a system pressurizing condition or under a decompression condition, the performance is stable, the quantification is precise, the life is long, and the adaptive temperature is wide in range.

The invention provides a water-blocking agent for releasing water-locking damage in low-water oil wells, which is composed of nano-silica with an original particle size of 15-30nm and ethylene glycol monobutyl ether, wherein nano-silica accounts for 1% of the total weight %-5%. When the volume ratio of the water-blocking agent to water is greater than 1:1, the water-blocking agent can solubilize the water phase and the oil phase within 6 hours, and the two phases of oil and water can be changed into one phase, thereby eliminating the two-phase seepage resistance, and the nanometer two Silica can enhance the hydrophilicity of the rock surface, allowing free water to adsorb to the rock surface to form a water film, thereby increasing the relative permeability of the oil phase and reducing the start-up pressure of oil phase seepage. For oil wells with water-locking damage, according to the leakage of well-washing fluid recorded during the well-washing operation, inject a water-blocking agent of the same volume as the water loss into the formation through the casing annulus, shut down the well for more than 6 hours and then open the well for production. Effectively remove the water lock damage of low water cut oil wells.

The invention discloses a dual-purpose double-medium fire extinguishing device. The dual-purpose double-medium fire extinguishing device comprises a cab, a vehicle body, a firefighting water tank, a telescopic arm, a break-in tool storage area and an engine system, wherein the firefighting water tank is fixed on the vehicle body and located on the rear side of the cab, the telescopic arm is fixed on the vehicle body, two folding arms which include a break-in folding arm and a water cannon folding arm are arranged at the front end of the telescopic arm, a break-in tool is mounted at the front end of the break-in folding arm, and a firefighting water cannon is mounted at the front end of the water cannon folding arm; an engine is arranged in the vehicle body to serve as drive power, and an engine tail gas recycling device is used for recycling the energy of engine tail gas. The fire extinguishing device has the advantages that the device is simple and practical in structure, high in mobility, energy saving and environmental friendly, the device has the function of a water tower fire truck and the function of a professional break-in firefighting truck, and energy can be reutilized.