43results about How to "Protect and extend service life" patented technology

The invention belongs to the technical field of transforming an oil-gas field reservoir, aims to overcome the problem that the packer in the prior art easily fails due to a long-term repeated setting under a high-temperature high-pressure environment, and provides a multi-stage draggable water-jet packer tubular column and a technology. The multi-stage draggable water-jet packer tubular column comprises a water-jet gun and the packer, wherein the packer is connected to the lower end of the water-jet gun. The water-jet packer has a simple structure, a jet channel of the water-jet gun and a setting liquid inlet channel of the packer are simultaneously opened during the application of continuous operation of water-jet perforating and fracturing in a manner of throwing a ball to impact a sliding sleeve, the operation is convenient, the packer can be effectively protected, the service life of the packer can be effectively prolonged, and the working life of a nozzle of the water-jet gun can be prolonged to a maximum extent.

The invention discloses a high-speed electric spindle of a ball. The high-speed electric spindle of the ball comprises a machine body, an aluminum water jacket, a bearing seat, a rotor spindle, a motor, a tool changing system and an air cooling system, wherein the machine body is provided with a first containing cavity, a second containing cavity is defined by the machine body and the bearing seat, a third containing cavity is defined by the bearing seat and the aluminum water jacket, the rotor spindle penetrates through the first containing cavity, the second containing cavity and the third containing cavity, the air cooling system comprises a fan and a cooling air channel, the cooling air channel comprises a plurality of air inlets, a plurality of air outlets and a first ventilating duct, and the fan is located in the third containing cavity and rotates along with the rotor spindle under the driving of the motor. According to the high-speed electric spindle of the ball, due to the fact that the fan which rotates at a high speed along with the rotor spindle is arranged on the rotor spindle, heat generated by the motor can be taken away. According to the radiating method, the structure is simple, energy is saved, and pollution is reduced. An air sealing system is arranged in the high-speed electric spindle of the ball, a lower bearing component can be cooled, impurities such as cutting fluid and greasy dirt are prevented from entering the machine body, and therefore the service life of the lower bearing component is prolonged.

The invention discloses a solar liquid heat temperature difference power generation device. The solar liquid heat temperature difference power generation device comprises a solar heat accumulation water tank, a hot water pipe, a tap water tank, a cold water pipe, a cold end, a temperature difference power generation element, a hot end, an electromagnetic valve, a cold end water outlet pipe, a hotend water outlet pipe, a constant pressure one-way valve, a temperature storage water tank water inlet pipe, a heat storage water tank, a buoyancy plug and a control circuit, wherein the control circuit comprises a power distribution cabinet, an output electromotive force end of the temperature difference power generation element, a light intensity controller, an electromagnetic valve, a relay anda temperature difference controller which are connected in series in sequence; one end of the storage battery is connected onto a circuit between the power distribution cabinet and the temperature difference controller, and the other end of the storage battery is connected onto a circuit between the output electromotive force end and the light intensity controller. The device is designed by usingtemperature difference power generation and circuit principles, temperature difference formed between the cold end and the hot end enables the temperature difference power generation element to generate electromotive force, generated electrical energy is stored in the storage battery through the power distribution cabinet, and temperature difference power generation is carried out by sufficientlyutilizing solar energy, so that warm water can be generated for providing home application while the liquid cycle energy loss is reduced.

The invention provides an asphalt pavement pitted surface repairing material, a preparation method thereof and an asphalt pavement pitted surface repairing suspending sand material. The asphalt pavement pitted surface repairing material is prepared by, by mass, 100 parts of asphalt, 5-8 parts of emulsifier, 30-50 parts of clay, 10-15 parts of acrylic resin and 150-250 parts of water. The asphalt pavement pitted surface repairing material has the advantages that the clay, the emulsifier and the water are used to form slurry type emulsification soap liquid used for emulsifying asphalt so as to allow components to be combined to form an integrated whole and increase the viscosity of emulsified asphalt, the asphalt pavement pitted surface repairing material can replace asphalt pavement surfaceoil to be mixed with fine aggregates during use, the loose aggregates can be locked under a low-thickness condition, influence on pavement elevation is avoided, damage, caused by oxidation, weather and traffic, to the original pavement is prevented, and the service life of the pavement is prolonged.

The invention relates to the technical field of automobile electronics, specifically to a method and a device for cleaning up carbon deposited in an automobile engine, wherein the device comprises a sensor, a controller and a pulse generator, wherein the controller is composed of a power circuit, a signal input circuit, a processor and a signal output interface, wherein the signal input circuit, the processor and the signal output interface are orderly connected; the pulse generator is composed of a condition indicator, a pulse circuit and a signal output circuit, wherein the pulse circuit and the signal output circuit are connected with each other; the sensor is connected with the signal input circuit of the controller; and the pulse generator is connected with the signal output interface of the controller. The method and the device provided by the invention can transmit a pulse signal timely according to an operation condition of the engine so as to clean up original deposited carbon of the engine, prevent newly deposited carbon from being generated, ensure a combustion condition is optimal under various conditions, and improve overall performance of entire automobile.

The invention provides a method for preparing leuprorelin. The method comprises the following steps: (1) taking Fmoc-Pro-CTC-OH and CTC (Carbon Tetrachloride) resin as starting raw materials and treating to obtain Fmoc-Pro-CTC-OH resin; (2) sequentially connecting the Fmoc-Pro-CTC-OH resin with an amino acid with a protecting group by adopting a gradual coupling manner of a Fmoc / tBu solid-phase method to synthesize side chain wholly-protected leuprorelin precursor peptide-resin; (3) taking a 20 percent trifluoroethanol / DCM (Dichloromethane) solution as a cutting reagent and cutting the side chain wholly-protected leuprorelin precursor peptide-resin, so as to obtain a side chain wholly-protected leuprorelin precursor peptide; (4) carrying out ethyl amination on the side chain wholly-protected leuprorelin precursor peptide to obtain side chain wholly-protected leuprorelin; (5) carrying out side chain cutting on the side chain wholly-protected leuprorelin to obtain a leuprorelin crude peptide; (6) carrying out CM purification and HPLC (High Performance Liquid Chromatography) purification, concentration, dissolving and freeze-drying on the leuprorelin crude peptide to obtain a high-purity leuprorelin crude drug. The method provided by the invention has the advantages of simplicity in operation, short period, low cost, high product yield and small environment pollution and is very suitable for industrial production.

The invention discloses an air compressor heat dissipation and noise reduction box convenient to disassemble. The air compressor heat dissipation and noise reduction box convenient to disassemble comprises a bottom plate, a top cover plate, a front door plate, a rear door plate, two side plates, four vertical frame columns and a box body frame, wherein upper buckling plates are arranged at the upper ends of the front door plate and the rear door plate, lower buckling plates are arranged at the lower ends of the front door plate and the rear door plate, grooves corresponding to the upper buckling plates and the lower buckling plates are formed in the box body frame, an air inlet and a fan assembly are arranged on the front door plate, a heat dissipation port is formed in the rear door plate, the fan assembly comprises a driving motor and axial flow fan blades, the axial flow fan blades comprise a hub and at least one blade, the blades are arranged on the peripheral wall of the hub, first flow guiding grooves are formed in the negative pressure surfaces of the blades, and the first flow guiding grooves comprise at least two sub-grooves arranged along the radial direction of the hub at intervals. The door plates of the air compressor are convenient to disassemble and convenient to overhaul, heat dissipation fans are installed on the door plates of an air compressor box body, and the fans can effectively reduce the air supply noise.

The invention discloses a storage battery charging system of a novel high efficiency photovoltaic assembly, comprising a photovoltaic assembly, a voltage sensor, a storage battery, a single-chip microcomputer, a configuration switch and a first control switch. The photovoltaic assembly, the first control switch and the storage battery are connected in series to form a circuit; the voltage sensor is connected to the two ends of the photovoltaic assembly in parallel; the single-chip microcomputer is connected to the voltage sensor and the first control switch in series to form a circuit; and the configuration switch is connected to the single-chip microcomputer and the array of the photovoltaic assembly. On one hand, the storage battery charging system of the novel high efficiency photovoltaic assembly can realize intermittence pulse charging under the weak light through reasonable design and expands the usage condition range of the photovoltaic assembly. On the other hand, the storage battery charging system disclosed by the invention can perform detection and control on the charging state of the storage battery, which not only prolongs the service life of the storage battery, but also saves the photovoltaic energy. The invention expands the usage condition of the photovoltaic assembly and improves the working efficiency of the photovoltaic assembly.

The invention discloses an air compressor box body realizing lifting heat dissipation and noise reduction. The air compressor box body realizing lifting heat dissipation and noise reduction comprisesa bottom plate, a top cover plate, a front door sheet, a rear door sheet, two side plates, four vertical frame columns and a box body frame, wherein an air inlet is formed in the front door sheet, a fan assembly and a lifting assembly, the lifting assembly controls lifting of the fan assembly, and a heat dissipation port is formed in the rear door sheet; and the fan assembly comprises a driving motor and an axial flow fan blade, wherein the axial flow fan blade comprises a hub and at least one blade, and the blade is arranged on the outer peripheral wall of the hub, a first flow guide groove is formed in the negative pressure surface of the blade, and the first flow guide groove comprises at least two sub-grooves arranged in the radial direction of the hub at intervals. According to the air compressor box body, a heat dissipation fan is mounted on the front door sheet, the fan can realize lifting heat dissipation, the heat dissipation effect is good; and meanwhile, blades of the fan are improved, so that the fan can also effectively reduce air supply noise.

The invention relates to a direct current frequency-conversion speed-regulation temperature control system which comprises a power supply system, a PWM (pulse width modulation) fan, a variable speed fan and an AO (analogue output) drive compressor. The system is characterized in that the power supply system provides minus 48V direct current; the rotation speed of the PWM fan is adjustable so as to achieve adjustable wind speed; and the compressor is a variable speed compressor, and a flexible start mode is adopted. The temperature control method of the direct current frequency-conversion speed-regulation temperature control system of the claim 1 is utilized, the cold or heat output of the refrigerating and heating unit is mainly controlled through target unit temperature curve changes; the method for controlling the cold and heat is provided according to requirements, and the temperature requirement of the target unit can be met with less energy resource consumption; and the energy conservation maximization is realized.

The invention provides a double-mode leak detector and a detection method. The double-mode leak detector comprises a detection gas source, a gas charging valve, a reference gas channel and a gas channel to be detected. The detection gas source is connected with the gas charging valve and is connected with the reference gas channel and the gas channel to be detected behind the gas charging valve. The reference gas channel and the gas channel to be detected are connected with balance valves respectively. a pressure difference sensor is in series connection between gas channels behind the reference gas channel and the balance valve of the gas channel to be detected. The double-mode leak detector also comprises a flow detection gas channel. The flow detection gas channel is connected with two flow detection values and a flow sensor. The flow sensor is located between the two flow detection valves. The double-mode leak detector and the detection method has advantages of wide application scope, low purchase cost, small land occupation space, high detection efficiency and the like. In addition, the balance valves in the reference gas channel and the gas channel to be detected can protect the pressure difference sensor and prolong the service life of the pressure difference sensor. The flow detection valve in the flow detection gas channel can ensure accuracy of the detection result during detection in a pressure difference mode.

The invention belongs to the technical field of battery management, and particularly relates to an electric bicycle battery management system and method based on a block chain. The system comprises anelectric quantity detection device, a vehicle-mounted data memory, a vehicle-mounted 5G communication module and a battery management system server, the electric quantity detection device is arrangedin a lithium battery and is connected with the lithium battery, the input end of the vehicle-mounted data memory is connected with the electric quantity detection device, data transmission is carriedout between the output end of the vehicle-mounted data memory and the vehicle-mounted 5G communication module, and data transmission is carried out between the vehicle-mounted 5G communication moduleand the battery management system server. The electric bicycle battery management system and method have the beneficial effects that the electric quantity of an electric bicycle can be collected, displayed and recorded, data are recorded into the block chain for subsequent tracing and cannot be tampered, real-time electric quantity data are fed back to a bicycle owner and a battery management platform in a non-delay mode, and the optimal charging time and place can be recommended.

An auxiliary heating device capable of achieving the heating-while-starting function of a water heating system is generally mounted in the position, close to a water use point, of the water heating system and is composed of a one-way valve (1), an electric auxiliary heater (7), a water mixing valve (6), a temperature control three-way valve (4) and a tee coupling (5) for connecting the valves with a pipeline. The temperature control three-way valve (4) is connected with the one-way valve (1), the electric auxiliary heater (7) and the water mixing valve (6) through a pipeline.

The invention discloses an air conditioner air outlet louver used for an agricultural locomotive. The air conditioner air outlet louver used for the agricultural locomotive comprises a louver frame, the louver frame is installed in a vehicle body in an embedded mode, a louver is installed in the louver frame, a movable block is arranged at the front end of the louver, and the front surface of thelouver frame is evenly coated with phosphor. Pulling bands are arranged on the front surface, located on the upper and lower sides of the louver, of the louver frame. Elastic bands are connected withthe two ends of the pulling bands. Fixed blocks are connected with the one ends, located on the front surface of the louver frame, of the elastic bands. A fixed frame is installed on the rear surfaceof the louver frame in an embedded mode. The invention increases the beauty of the louver frame at night, prevents dust from entering the interior of an air-conditioner along the louver frame and affecting the service life of the air conditioner, can cushion the acting force when installating between the louver frame and the vehicle body and then protects and prolongs the service life of the louver frame, and at the same time the installation and disassembly modes of the louver frame are easy.

The invention discloses an air compressor box capable of achieving convection heat dissipation and noise reduction. The box comprises a bottom plate, a top cover plate, a front door plate, a rear doorplate, two side plates, four vertical frame columns and a box body frame; door hinges are arranged on the side edges of the front door plate and the rear door plate; a bolt corresponding to the doorhinge is arranged on the box body frame; the upper portion of the front door plate and the lower portion of the rear door plate are each provided with an air inlet and a fan assembly. Heat dissipationopenings are formed in the lower portion of the front door plate and the upper portion of the rear door plate, and the fan assembly comprises a driving motor and an axial flow fan blade; the axial flow fan blade comprises a hub and at least one blade body, a first flow guide groove is formed in the negative pressure face of each blade body, and each first flow guide groove comprises at least twosub-grooves formed in the radial direction of the hub at intervals. The door plate of the air compressor is convenient to mount and dismount, the cooling fans are mounted on the front door plate and the rear door plate of the air compressor box body to form convection heat dissipation, the heat dissipation effect is good, and the fans can further effectively reduce air supply noise.

The invention provides a method for preparing inert filler for EO / EG devices, which is characterized in that the inert filler consists of the following raw materials by weight percentage: 10-50 percent of industrial alumina, 7-25 percent of kaolin, 8-20 percent of industrial silicon dioxide, 15-45 percent of ordinary clay, 5-15 percent of bauxite, 2-10 percent of bentonite and 1-10 percent of calcium carbonate; the raw materials are ground respectively, added with a certain amount of adhesive to help mold and dried to be a blank which is to be subjected to high-temperature firing and is in the spherical shape with holes or no holes; and the dried blank is calcined for 1 to 12 hours at a high temperature between 1,000 and 1,600 DEG C, and is preferably calcined for 2 to 8 hours at a high temperature between 1,200 and 1,500 DEG C.

The invention discloses volatile stamping oil, which belongs to the field of stamping oil, and is characterized in that the stamping oil comprises the following components in percentage by mass: 98-99% of base oil, 0.1-0.5% of an extreme pressure additive, 0.2-0.4% of a hydrophilic additive, 0.3-0.7% of a friction coefficient improver and 0.1-0.5% of a nano additive. The stamping oil has excellent lubricating performance, breaks through the lubricating performance of current common products, forms a compact protective film on the metal surface, solves the lubricating problem, protects and prolongs the service life of equipment, reduces the breakage rate of aluminum foil, improves the flash point, ensures the safe production of production enterprises, and is non-toxic and odorless. workers do not feel allergic during use, and the physical and psychological health of the workers is facilitated.

The invention discloses a liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module which comprises a shell with a hollow cavity, wherein a pre-refrigeration agent compressor, a compressor lubricating system, a lubricating oil temperature reduction heat exchanger and a compressor lubricating oil fine separator are arranged in the shell; the shell comprises a left wall plate, a right wall plate, a main wall plate and a back wall plate; containers used for supplying air are arranged on the outer wall of each of the left wall plate, the right wall plate and the main wall plate; an air feeder communicated with the cavity of each of the containers is arranged on one side wall of each of the containers; two or more truncated-cone-shaped cavities are formed in the other side wall of each of the containers; a truncated-cone-shaped cavity channel corresponding to the truncated-cone-shaped cavities is formed in each of the truncated-cone-shaped cavities in a penetrating manner from one end to the other end; two or more truncated-cone-shaped run-through cavity holes opposite to one end, shorter in the vertical span, of each of the truncated-cone-shaped cavities are formed in each of the left wall plate and the right wall plate. According to the liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module, the skid-mounted packaging module can be cooled by ventilation and refrigerated effectively.

A pipeline endoscope probe tube auxiliary tool comprises a range retaining rod and a plurality of cross-shaped clamping frames fixed to the range retaining rod. The four ends of the cross of each cross-shaped clamping frame are provided with fixed pulleys respectively. The center of each cross-shaped clamping frame is equipped with a probe tube hole. The circumference of the each cross-shaped clamping frame is provided with a pin hole. The diameter of the probe tube hole matches the outer diameter of the probe tube. The diameter of the pin hole matches the outer diameter of the range retaining rod. The pipeline endoscope probe tube auxiliary tool solves the defects of a conventional endoscope probe tube, greatly improves the inspection effect of the endoscope, and is suitable all portable endoscopic devices currently in use without re-customized purchase, protects and prolongs the service life of the probe tube, and greatly facilitate the operation in pipeline inspection in addition to fast and convenient installation.

The invention provides a multi-string lithium battery set protective board which comprises a voltage stabilizing circuit and a comparing switch circuit which are in parallel connection between a negative electrode charging node and a positive electrode charging node of each string of lithium battery set. A charge and discharge switch is connected between the comparing switch circuit and a ground connection end of a negative electrode grounded first lithium battery. The multi-string lithium battery set protective board has the advantages that the protective board is suitable for charge and discharge protection of a plurality of strings of the lithium battery sets, voltage difference among each single battery is smaller than a preset value (usually + / -20 mA) after the battery set is fully charged, even charge of each single battery of the battery set is achieved, charging effect in a parallel connection charging method is effectively improved, voltage of each single battery in the battery set is detected, service lift of each battery is prolonged and the product can work stably and reliably for a long time in an environment with the temperature between -20 DEG C to +60 DEG C.

The invention discloses a lithium battery, and the lithium battery comprises a packaging structure and a lithium battery cell arranged in the packaging structure. The lithium battery cell comprises afirst current collector, a negative electrode layer, an electrolyte layer, a positive electrode layer and a second current collector. The packaging structure contains the following materials in partsby weight: 50-52 parts of polyethylene glycol terephthalate; 28-30 parts of polyamide; 12-14 parts of triacetyl cellulose; 2-4 parts of aluminum nitride; 1-3 parts of zirconium nitride; 3-5 parts of silicon nitride; and 0.2-2 parts of yttrium nitride. According to the lithium battery with the long service life, the packaging structure is arranged to protect and prolong the service life of the all-solid-state lithium battery, the battery structure can be effectively prevented from being damaged by an external force, and the battery structure is effectively protected; an insulating layer is arranged in the packaging structure, so that the safety performance of the lithium battery is improved; and through the arrangement of the heat dissipation plate, the heat is prevented from accumulating on the insulating layer, thereby guaranteeing the safety performance and the service life of the lithium battery.

A pipeline endoscope probe tube auxiliary tool comprises a range retaining rod and a plurality of cross-shaped clamping frames fixed to the range retaining rod. The four ends of the cross of each cross-shaped clamping frame are provided with fixed pulleys respectively. The center of each cross-shaped clamping frame is equipped with a probe tube hole. The circumference of the each cross-shaped clamping frame is provided with a pin hole. The diameter of the probe tube hole matches the outer diameter of the probe tube. The diameter of the pin hole matches the outer diameter of the range retaining rod. The pipeline endoscope probe tube auxiliary tool solves the defects of a conventional endoscope probe tube, greatly improves the inspection effect of the endoscope, and is suitable all portable endoscopic devices currently in use without re-customized purchase, protects and prolongs the service life of the probe tube, and greatly facilitate the operation in pipeline inspection in addition to fast and convenient installation.

The invention relates to a method for preparing an inert filler for an ethylene oxide / glycol device. The method is characterized in that compounds containing alkali and alkaline earth metal elements are added into raw materials, so that the total content of alkali and alkaline earth metal oxides is between 0.5 and 20 percent; and the isomerized activity of the inert filler is inhibited, so that the inert filler is nearly inert completely, wherein the inert filler consists of the following raw materials in percentage by weight: 10 to 60 percent of commercial alumina, 5 to 30 percent of kaolin, 10 to 20 percent of industrial silicon dioxide and 10 to 50 percent of ordinary clay. The method comprises the following steps of: crushing the raw materials, adding a certain amount of adhesive for forming, drying to form a blank to be sintered at high temperature, and calcining at the high temperature of between 1,200 and 1,600 DEG C for 2 to 8 hours.

The invention discloses a solid-state lithium battery packaging structure, a lithium battery and a packaging method thereof. The solid-state lithium battery packaging structure comprises a blocking layer, a partitioning layer and a protection layer which are overlapped, wherein the blocking layer is prepared from a lithium-containing compound; the solid-state lithium battery comprises a lithium battery core and the packaging structure; the lithium battery core comprises a cathode structure, a solid electrolyte and an anode structure which are overlapped; the ones of sides, which are used for defining the cathode structure and the anode structure in the lithium battery coreand are far away from the solid electrolyte, of the cathode structure and the anode structure in the lithium battery core are defined as opposite end surfaces; thea surface of the lithium battery core between the two end surfaces is taken as the side surface of the lithium battery core; the packaging structure is arranged on the side surface of the lithium battery core in a surrounding way. According to the packaging method for the solid-state lithium battery, the lithium battery core is provided, the blocking layer, the partitioning layer and the protection layer are arranged on the side surface of the lithium battery core in sequence along a direction far away from from a position closethe lithium battery coreto a position far from the lithium battery core; the blocking layer is prepared from the lithium-containing compound. TAccording to the technical scheme, the solid-state lithium battery packaging structure is characterized by hashaving a dense structure, beingis tightly combined with the battery, and having high performance in protecting and being compatibleprotection on and compatibility with thea lithium alloy.

The invention discloses a wear-resisting plate suitable for a bulk cargo cabin lining, and relates to the technical field of ship cargo cabin loading and unloading protection, and the wear-resisting plate is technically characterized by comprising wear-resisting thick plates and wear-resisting thin plates which are arranged on a steel plate in a cabin, the thickness of the wear-resisting thick plates is 12 mm, and the wear-resisting thick plates are arranged at a directly impacted part in the cabin; the wear-resistant thin plates are 10mm in thickness and are arranged at an impact receiving part in the cabin; the wear-resistant thick plates and the wear-resistant thin plate are clamped with each other to form a whole which completely covers the steel plate in the cabin; the service life of the bottom steel plate in the cabin is protected and prolonged, and the maintenance and replacement cost is reduced.