33results about How to "Simple, safe and reliable operation" patented technology

The invention discloses a multi-core-driven multi-stage booster combined fire-extinguishing and smoke-controlling device which comprises a carrier. The carrier is provided with a rotating lifting mechanism which is fixedly provided with a combined exhaust blower group, the carrier is also provided with a control system which is connected with the combined exhaust blower group formed by assembling and fixedly mounting six exhaust blowers together, and the six exhaust blowers are arranged up and down and integrally combined in two rows with three exhaust blowers in a row and share an outer air duct, a water supply pipeline and a water mist nozzle. The multi-core-driven multi-stage booster combined fire-extinguishing and smoke-controlling device of the invention has great exhaust air rate in case of a certain volume.

The invention relates to an intelligent power distribution cabinet for a power system. The intelligent power distribution cabinet comprises a cabinet body and a hoisting mechanism which is arranged above the cabinet body. The cabinet body is provided with a cabinet door. The front surface of the cabinet door is provided with an input/output mechanism and a handle. The back surface of the cabinet door is provided with a fixing mechanism. The cabinet body is internally provided with two horizontally arranged cross bars. The intelligent power distribution cabinet for the power system utilizes a third driving motor in the hoisting unit for making a conveyor belt move, and a moving block is driven to perform displacement, thereby making a suspension ring move in a trough, and facilitating hoisting operation and conveying operation on the suspension ring. Furthermore, a connecting board is horizontally arranged through a first connecting driving motor, thereby facilitating opening of the cabinet door. Through rotation of a second driving motor, a block on the connecting board approaches and clings to cross bar, thereby realizing locking operation on the cabinet door. The fixing mechanism realizes simple operation, high safety and high reliability, so that practicability of the power distribution cabinet is improved.

The invention discloses a method for determining the content of mineral elements in a formulated food which is used for special medical application, and belongs to the technical field of component detection for a medical food. According to the method, an inductively-coupled plasma atomic emission spectrometer can determine the content of eight mineral elements, including sodium, potassium, calcium, magnesium, zinc, iron, copper and manganese, in a formulated food which is used for special medical application, at the same time. The method includes preparation of solutions, pretreatment of the solutions, preparation of a mixed standard solution and determination. The solutions include a blank solution and a sample solution. The pretreatment of the solutions is carried out through a nitric acid and microwave digestion method. The solutions are pre-digested through nitric acid and are digested via a microwave digestion device, the obtained products are diluted, and the diluted products undergo ICP-OES determination. The method is short in pretreatment time, less in sample consumption, complete in digestion degree, and high in efficiency, and allows high-temperature operation to be prevented. The sample can be well atomized into a stable plasma state, so that the RSD value in a determination process is efficiently reduced, and the determination result is real, stable and reliable.

The invention discloses a test system and method for a speed regulator of a nuclear power station 6.6KV emergency diesel generator system. The system comprises a simulation controller, a PXI case and a signal converter. A test signal generated by the PXI case under the control of the simulation controller is subjected to digital-analog conversion and first matching processing conducted through the signal converter and then transmitted to the speed regulator, a response signal generated by the speed regulator is subjected to second matching processing through the signal converter to be transmitted to the PXI case, the PXI case conducts analog-digital conversion on the response signal and transmits the signal to the simulation controller, and the simulation controller conducts waveform comparison and analysis on the response signal to determine dynamic parameters and static parameters of the speed regulator to obtain a test result. By means of the test system and method, a plurality of simulation and/or simulative input signals can be provided for the speed regulator under the condition that the speed regulator is off-line and open-loop, and the dynamic and static response characteristics of the speed regulator are compared and analyzed by measuring the response signal of the speed regulator in real time to finish the timely accurate test of the speed regulator.

The invention discloses a nitrogen separation device. The device comprises a separation device body, wherein the separation equipment body comprises a shell, an adsorption mechanism, a first valve mechanism, a second valve mechanism and a controller; the adsorption mechanism is arranged in a second cavity; the adsorption mechanism is respectively connected with an air compression device and a nitrogen buffer tank through the first valve mechanism; the nitrogen buffer tank is connected with the second valve mechanism; the adsorption mechanism comprises two adsorption towers, and the two adsorption towers are mutually connected through the first valve mechanism; the controller is arranged on the left surface of a separation plate and is electrically connected with the first valve mechanism and the second valve mechanism; and the two adsorption towers are arranged in the second cavity through connecting parts. According to the nitrogen separation device, nitrogen is prepared by a conventional eight-valve pressure-swing adsorption principle, the adsorption mechanism is installed in the shell and is safe and reliable, and the device is small in overall size and is suitable for small fields such as laboratories and the like. The maximum yield is 33 m<3>/h, and the gas outlet concentration can reach 99.999%.

The invention relates to an evaluation method for lightning arrester characteristic distortion caused by high and low temperature factors; the method is characterized in that an evaluation platform for lightning arrester characteristic distortion caused by high and low temperature factors is built, and the evaluation method comprises the steps that a lightning arrester is grounded and placed in a test box, and the temperature in the test box is set by adjusting a temperature adjusting device; currents flowing through the lightning arrester under different temperature conditions are obtained through a current detector, a current decay factor in the current of the lightning arrester and a performance damage factor of the lightning arrester are comprehensively considered, a characteristic distortion factor of the lightning arrester is obtained, and whether the lightning arrester needs to be overhauled or not is evaluated according to the characteristic distortion. The method mainly aims at realizing characteristic distortion evaluation of the lightning arrester, and the main realization method is to comprehensively consider a current decay factor and a performance damage factor of the lightning arrester, so that the method is of great significance to stable operation of a power grid.

The invention discloses a base station type replacement method and device and an SDR network management system, and the method comprises the steps: building a blank target base station rack diagram ona view region of a source base station rack diagram through a software-defined radio (SDR) network management system according to the operation of a user for building a new base station; and moving agraphical management objective (MO) in the source base station rack diagram to the target base station rack diagram according to a graphical moving operation of the user, storing service position keyword information of the MO on the source base station rack diagram and the target base station rack diagram, and performing data configuration on the target base station based on the target base station rack diagram in the graphical moving operation process to complete the replacement of the base station type. According to the invention, base station type replacement is faster and more convenient,operation is simple, and safety and reliability are realized.

The invention provides a bending tool and a disassembling method of a rotor check ring. Tension consistent with the deformation direction of a bent workpiece can be applied. In the bending tool, a sliding seat is in sliding fit with a support; a drag hook seat is connected with the sliding seat in a rotatable mode; a drag hook comprises a rod part in sliding fit with the draw hook seat and a hookused for hooking a bent workpiece; the length direction of the rod part is perpendicular to the bending rotation center line of the bent workpiece, the sliding direction, relative to the drag hook seat, of the rod part is in the length direction of the rod part, and the sliding direction, relative to the support, of the sliding seat intersects with the length direction of the rod part and is perpendicular to the bending rotation center line; and the rotating axis, relative to the sliding seat, of the drag hook seat is parallel to the bending rotation center line. The bending tool is adopted for the disassembling method of the rotor check ring. The disassembling method includes the steps that bendable stop pieces are hooked by the hook; and the drag hook is operated to pull the bendable stop pieces to conduct bending, and the position, relative to the support, of the sliding seat, the position, relative to the pull hook seat, of the rod part and the angle of the drag hook are adjusted in the bending process so that the drag hook can be perpendicular to the bendable stop pieces.

The invention discloses a coal mine winch rope arranging device, relates to a steel wire rope arranging device for a coal mine underground winch, and belongs to the field of mine machines. Two movingrollers are connected through small rollers with the diameter being 6 cm and the length being 15 cm. Steel bars with the diameter being 1.5 cm and the length being 5 cm are welded to middle shaft endportions of the two ends of the small rollers. After iron rings are welded to the steel bar end portions, the iron rings sleeve the tops and the bottoms of the two moving rollers, and the positions, away from the end portions by 0.5 cm, of middle shafts of the small rollers are provided with pin holes; during usage, a hydraulic oil cylinder can be directly operated to advance or retreat accordingto the steel wire rope swinging direction, accordingly, a steel wire rope clamped between the two moving rollers is operated to move, and the situation that gathering happens at one position of the winch, and accidents are caused is prevented; the operation manner is simple, safe and reliable, and the integral manufacturing technology is simple; and in the operation process, load limitation is avoided, the load bearing winch steel wire rope can be smoothly arranged, and popularization value is extremely achieved.

The invention relates to the field of lithium battery production, and discloses a battery liquid injecting hole cleaning method and a cleaning device. The cleaning method comprises the following stepsof: determining a cleaning area on a battery cover plate, wherein the cleaning area is an area, which does not comprise the liquid injecting hole, in the periphery of the liquid injecting hole; determining a rotation angle of a first lens and a rotation angle of a second lens in a laser cleaning machine according to the cleaning area, wherein the first lens is inclined towards the right lower side, and the second lens is inclined towards the right upper side, the first lens is opposite to a laser head of the laser cleaning machine and is positioned at the right upper side of the second lens,the laser cleaning machine further comprises two motors which are separately connected with the first lens and the second lens for separately driving the first lens and the second lens to rotate. A cleaning method provided by the invention can clean an electrolyte solution in a peripheral area of the liquid injecting hole, does not clean the liquid injecting hole during cleaning, prevents the laser from breaking seal inside a battery; and the cleaning method is simple to operate, and is safe and reliable.

The invention relates to the technical field of building construction, in particular to a hanging basket construction device for a curved-surface-shaped building. The hanging basket construction device for the curved-surface-shaped building comprises a hanging basket, a first fixing part, a second fixing part and a cableway assembly, wherein the first fixing part is arranged at a position far away from the ground on the building; the second fixing part is arranged at the position, close to the ground, of the building; and the cableway assembly is arranged between the first fixing part and the second fixing part and suitable for supporting the hanging basket, so that the hanging basket and the building are arranged in a spaced mode, and the cableway assembly is suitable for adjusting the distance between the hanging basket and the building. According to the hanging basket construction device for the curved-surface-shaped building, the distance between the hanging basket and the building is adjusted by adjusting the length of the cableway assembly, the defect that in the prior art, a hanging basket is inconvenient to construct and install a curved-surface-shaped building enclosure structure is overcome, and the hanging basket construction device suitable for the curved-surface appearance enclosure structure is provided.

The present invention discloses the synthesis process of 9-erythromycin oxime. Erythromycin oxime is synthesized through compounding hydroxylamine hydrochloride and triethylamine, and the direct synthesis of 9-erythromycin oxime with erythromycin fermenting extract liquid through the steps of synthesizing erythromycin oxime hydrochloride, creating methanol solution of erythromycin oxime and creating crystal liquid. The said process is simple, safe and reliable, and has product yield up to 70 % and purity over 93 %.

The invention relates to a large steel member transporting device on a construction site. The device comprises a rubber wheel bracket and a connecting triangular frame and is characterized in that the rubber wheel bracket consists of two rubber wheels and a steel cross beam, wherein the two ends of the steel cross beam are provided with bearings and are respectively connected with the two rubber wheels to form a bracket and a walking system; the connecting triangular frame consists of a connecting plate, two horizontal connecting rods, a horizontal support rod and two vertical connecting rods; and one ends of the two vertical connecting rods are respectively connected with the horizontal connecting rods, and the other ends are connected with the two ends in the height direction of a large steel member to form two space triangles arranged at an angle with respect to the ground plane, so that a stable space triangular bracket system is formed. The rubber wheel bracket is arranged below the center-of-gravity position of the large steel member in transportation; the steel cross beam is firmly connected with the large steel member; and after the connecting plate is hinged to a tractor by a pin shaft, the large steel member can be towed and transported to the mounting position.

The invention belongs to a port line transportation flatcar. Technical problems that when the transportation flatcar additionally provided with a side door is used, after the side door is opened, an operator is easily injured; meanwhile, after the side door is opened and rotates, a side beam and the side door are impacted, and deformation of the side beam and the side door is caused are solved. The transportation flatcar comprises a car body, a buffer device and the side door. The buffer device comprises a connecting hinge, a hinge base, stop iron and pressing nuts. The hinge base is fixed tothe side beam, and the upper end of the connecting hinge is fixed to the side door; the hinge seat, the lower end of the connecting hinge and the stop iron sequentially sleeve from outside to inside and are connected through a hinge pin; the hinge pin is provided with a first spring and a second spring, one end of the first spring and one end of the second spring are connected to the side door, and the tail ends of the other ends are horizontally bent and connected to the hinge base; the two end surfaces of the first spring and the two end surfaces of the second spring are buckled with a pairof end covers; and the pressing nuts are in threaded connection with the two ends of the hinge pin and press the first spring and the second spring to the two sides of the hinge base correspondingly.

The invention relates to a pollution-considering offshore substation wall bushing life evaluation method, which is characterized in that a pollution-factor-considering offshore substation wall bushing life evaluation platform is established, and the evaluation steps are as follows: a host sends a pollution concentration setting signal to a pollution concentration control device; a pollution spraying generation device in the test box sprays pollution into the test box, so that the pollution concentration in the test box is adjusted, a pollution concentration tester measures the pollution concentration in the test box every t0 seconds and transmits a result to a data collection module, the data collection module transmits data to a host, a power frequency power supply is turned on, and the host is started. The current parameter tester measures the operation current value of the dirty bushing sample under the power frequency voltage, collects the current parameter through the data collection module, transmits the current parameter to the host, calculates the life evaluation factor of the wall bushing, and then evaluates the life evaluation factor of the wall bushing so as to judge whether the wall bushing needs to be replaced. The method mainly aims at evaluating the service life of the offshore wall bushing, the main implementation method is to consider the service life evaluation factor of the wall bushing, and the method is of great significance to stable operation of an offshore oil drilling platform.

The invention provides a bending tool and a disassembling method of a rotor check ring, which can apply a tensile force consistent with the deformation direction of a bent workpiece to gradually bend the workpiece. In the bending tool, an arc-shaped part of a support is provided with a guide arc surface and a guide groove formed in the arc length direction of the guide arc surface; the drag hook comprises a rod part penetrating through the guide groove and a hook; the fixing assembly is fixed on the rod part, and the guide matching part of the fixing assembly is movably matched on the guide arc surface; the guide center of the guide arc surface is arranged to be concentric with the reference arc, in the process that the drag hook rotatably bends, the rod part is kept in the tangential direction of the reference arc, and the position, making contact with the free end of the workpiece, of the hook is kept on the reference arc. The disassembling method of the rotor retainer ring adopts the bending tool, and comprises the following steps: fixing the support on the rotor disc, and enabling the guide center to coincide with the bending rotation center of the bendable baffle plate; the hook is used for hooking the free end of the bendable separation blade; the pull hook is operated to pull the bendable blocking piece to be bent until the blocking of the tenon is avoided.

The invention provides an auxiliary reduction device for shoulder dislocation, and belongs to the field of medical instruments. Comprising a bed frame, a bed board is fixedly installed on the inner side of the bed frame, a trunk supporting tool is installed on the bed board, an upper limb supporting tool is installed on one side of the trunk supporting tool, and two sets of adjusting parts and clamping parts which are connected are symmetrically installed on the upper limb supporting tool relative to the axis of the upper limb supporting tool; and a synchronizing part is mounted on one side of the upper limb brace. By arranging the trunk brace and the clamping part, the trunk of a patient can be directly supported, medical staff do not need to abut against the armpits of the patient through the feet, the situation that the gravity center of the medical staff is unstable in the treatment process is avoided, extrusion to ribs of the patient is avoided, and the patient is more comfortable to use. Meanwhile, rapid clamping and full limiting of the upper limbs of the patient are achieved, dislocation of the wrist or the elbow joint of the patient due to the fact that medical staff pull the wrist of the patient vigorously is avoided, effective reduction treatment is guaranteed, and the treatment efficiency is improved.

The invention discloses an optical fiber tie-in jig, which includes a base, and is characterized in that: the base is provided with a pressing plate and a tie-in base, and the pressing plate is provided with several positioning holes parallel to each other. And a groove is arranged on the belt base, and the groove is parallel to the positioning hole. The optical fiber bundling jig of the present invention limits the position of the optical fiber through a simple structure, and assists the operation of the optical fiber bundling. The jig for combining optical fibers of the invention has the advantages of simple structure, convenient operation and the like.

The invention belongs to the technical field of information identification processing and mechanical semi-automation, and particularly relates to a vehicle-mounted schoolbag device and a working method thereof. The device comprises a device body; a sensing module which comprises a radio frequency sensor and an identity recognition card, wherein the radio frequency sensor is located on the device body and used for sensing the identity recognition card; a driving module which is used for driving the device body to move; a main control module which is used for receiving a signal from the radio frequency inductor for successful induction and identification and controlling the driving module to operate, so that the device body moves; and a power supply module used for providing power for the vehicle-mounted schoolbag device. According to the vehicle-mounted schoolbag device and the working method thereof, unlocking of the device body is achieved through the induction module, the burden of auser can be greatly relieved through the driving module, and the shoulders of the user are liberated; meanwhile, the anti-theft function and the obstacle avoidance warning function of the device bodyare achieved through the warning module and the blocking piece on the wheel shaft, and therefore the vehicle-mounted schoolbag device is easy to operate, safe and reliable.

The invention discloses a multi-core-driven multi-stage pressurized combined fire-fighting smoke exhaust device, comprising a carrier, a rotary lifting mechanism is arranged on the carrier, a combined smoke exhaust unit is fixedly installed on the rotary lifting mechanism, and a control device is also arranged on the carrier. The system, the control system is connected with the combined smoke exhaust unit. The combined smoke exhaust unit is fixedly installed by a combination of 6 smoke exhausters. Each row is set with 3 smoke exhausters, and two rows of sets are set up and down. The hood is installed with a shared cover air duct, water supply pipeline and fine water mist nozzle. The multi-core-driven multi-stage pressurized combined fire-fighting and smoke-exhausting device of the present invention has a large exhaust air volume when the volume of the fire-fighting and smoke-exhausting device is constant.