14results about How to "Improve effective working time" patented technology

This invention relates to a zero-residue multi-stage deflagration fracturing method and system, addressing the problems of existing deflagration fracturing devices, such as well-water pollution, failure to achieve the expected fracturing effect, and low efficiency. The multi-stage deflagration fracturing method includes: Step 1: Preparing the deflagration fracturing charge, central tube, and guide plug in the deflagration fracturing system using a combustible material that is soluble in chloride ions; Step 2: During operation of the deflagration fracturing system, a detonator ignites the central tube and the deflagration fracturing charge; Step 3: The central tube burns, the deflagration fracturing charge deflagrates, and the guide plug burns simultaneously, thus performing multi-stage deflagration fracturing; Step 4: After deflagration fracturing is completed, the residue from the central tube, deflagration fracturing charge, and guide plug falls into the well water, where it dissolves completely, achieving zero residue. To achieve the above method, this invention also proposes two zero-residue multi-stage deflagration fracturing systems.

This invention belongs to the field of supercapacitor technology, specifically relating to a molybdenum oxide-molybdenum disulfide@polytannic acid electrode material, its preparation method, and its applications. Using molybdenum foil as the current collector and electrode, this invention prepares a molybdenum oxide-molybdenum disulfide electrode using electrochemical oxidation and hydrothermal methods. A polytannic acid coating is deposited on its surface to prepare a biodegradable molybdenum oxide-molybdenum disulfide@polytannic acid electrode. This electrode is then sandwiched with a biodegradable gel electrolyte and encapsulated with a biodegradable encapsulation material to construct a biodegradable supercapacitor with self-discharge suppression capabilities. By depositing a polytannic acid coating on the surface of the supercapacitor electrode, its self-discharge behavior is suppressed. The polytannic acid coating can prevent parasitic Faraday reactions of impurity ions on the electrode surface and prevent charge transfer, thereby suppressing the capacitor's self-discharge behavior. Simultaneously, the electrode, electrolyte, and encapsulation material can all degrade in simulated body fluids, potentially opening up applications in implantable medical electronic devices.

The utility model provides an exhaust device, an exhaust system and wafer processing equipment. The two ends of the air exhaust device are in fluid connection with a machining cavity of the wafer machining equipment and an air duct outside the wafer machining equipment respectively, and the air exhaust device comprises a first air exhaust pipe, a second air exhaust pipe and a third air exhaust pipe, the branch pipe is arranged at the communicating hole of the first exhaust pipe and is in fluid communication with the first exhaust pipe through the communicating hole, and the branch pipe is configured to be connected with the air pressure detector; and the second exhaust pipe is at least partially nested in the first exhaust pipe, the side wall of the second exhaust pipe at least covers the communicating hole, and a buffer gap is formed between the side wall of the second exhaust pipe and the side wall of the first exhaust pipe at the communicating hole, so that the situation that airflow carries machining dust to impact into the branch pipe is avoided. According to the technical scheme, the airflow speed at the branch pipe is remarkably reduced, vortex is effectively prevented, and dust deposition of the branch pipe and the pressure measuring air pipe is avoided.

The present application relates to chain tensioner technical field, especially to a kind of hydraulic chain tensioner for electric automobile engine, including fixed seat, hydraulic seat is slidably fitted on fixed seat, tensioning sprocket is rotatably connected on hydraulic seat, oil tank is fixedly connected on the side of fixed seat, oil extraction seat is fixedly connected on oil tank, transmission mechanism is rotatably connected on oil extraction seat, oil liquid processing seat is fixedly connected on oil tank, automatic decontamination mechanism is rotatably connected in oil liquid processing seat, arc filter screen is fixedly connected in oil liquid processing seat, by setting automatic decontamination mechanism on arc filter screen, the effective working time of arc filter screen can be extended in the use process of hydraulic chain tensioner, prevent arc filter screen from being blocked due to impurity accumulation, ensure the fluency of oil, not only can effectively improve the stability, reliability and maintenance efficiency of system, also can prevent pressure fluctuation or tensioner jam caused by arc filter screen blockage.

This utility model discloses a building fire simulation training device, including an upper simulation area and a lower simulation area, both constructed using shipping containers. The lower simulation area includes a furniture fire simulation training room, a kitchen fire simulation training room, an electrical fire simulation training room, and an oil fire simulation training room. The outer wall of the oil fire simulation training room has a gas storage chamber, and a gas delivery pipeline is installed on the gas storage chamber, one end of which is connected to the gas storage chamber. The gas delivery pipeline surrounds the outer wall of the lower simulation area. A bed fire model is installed in the furniture fire simulation training room directly opposite the igniter; a kitchen fire model is installed in the kitchen fire simulation training room directly opposite the igniter; and an electrical fire model is installed in the electrical fire simulation training room directly opposite the igniter. This utility model provides a variety of training scenarios and good training results, with the upper simulation area used for comprehensive fire simulation training and the lower simulation area used for real fire simulation training.

This invention discloses a waste filtration and collection device for a swimming pool underwater cleaning robot, comprising: a shell with an inlet channel and an outlet channel; the inlet channel having a confluence channel and two suction channels; the two suction channels are located at the bottom of the shell and converge to the lower end of the confluence channel; the upper end of the confluence channel extends into the inner cavity of the shell and divides the inner cavity into front and rear waste compartments; the outlet channel has a drain channel and two filter channels; the drain channel is located at the top of the shell, with a water pump impeller installed at the drain outlet at the upper end of the drain channel, and its lower end confluences and connects to the upper ends of the two filter channels; the lower ends of the two filter channels are equipped with filter screens, which correspond to the inlets of the front and rear waste compartments respectively; both ends of the confluence channel are gradually expanding openings, with the upper end guiding the flow direction towards the front and rear filter screen areas respectively. This invention can effectively reduce the flow resistance of the entire channel, reduce the power consumption of the swimming pool cleaning robot, and thus extend the effective working time of the robot.

This invention discloses a transformer core silicon steel sheet cutting device, relating to the field of transformer core silicon steel sheet cutting technology. It includes an upper and lower longitudinal cutting shaft arranged parallel to each other and rotatable relative to each other. Multiple disc cutters for cutting silicon steel sheets and multiple spacers for supporting and separating the disc cutters are staggered on both the upper and lower longitudinal cutting shafts. A lubrication mechanism is located on the feeding side of the longitudinal cutting mechanism, an anti-escape mechanism is located on the discharge side of the longitudinal cutting mechanism, and a blade adjustment mechanism is located on the upper longitudinal cutting shaft. The advantages are: by integrating the lubrication and anti-escape mechanisms, "precise lubrication" and "efficient recovery" are achieved in the cutting process, reducing the frequency of downtime and blade replacement due to tool wear, thereby significantly extending the overall service life of the tools. Combined with online backlash monitoring and the rapid axial fine-tuning function of the blade adjustment mechanism, it can quickly compensate for the decrease in accuracy caused by natural tool wear, extending the effective working time within a single tool replacement cycle.

The utility model discloses an automatic punching device, which relates to the technical field of punching devices and comprises a punching seat, a punching top plate is arranged above the punching seat, a movable vertical plate is fixedly connected to the rear side of the bottom of the punching top plate, and a hollow circular plate is fixedly connected to the front side wall of the movable vertical plate. The inner cavity wall of the hollow circular plate is rotationally connected with a rotating disc, the interior of the rotating disc is slidably connected with a punching rod, and the bottom end of the punching rod is fixedly connected with a punch; according to the automatic punching device, the rotating disc is matched with the hollow circular plate and the stepping motor to drive the punching rod to rotate, and then the punching rod is matched with the hollow arc block through the connecting circular plate, so that the punches and the hydraulic cylinder are rapidly connected, the corresponding punches are conveniently and rapidly replaced, the effective working time of equipment is prolonged, and the working efficiency is improved. And the downtime caused by replacing the punch is reduced, so that the overall production efficiency is improved.

The utility model discloses a novel displacement imaging mechanism of side-mounted short cantilever belongs to machine vision detection technical field, including camera, lens, actuator, light source, V type fixed block and mounting plate, the camera with the lens passes through transition sheet and is installed on the actuator, and with the actuator realizes up and down movement, the actuator is motor, screw, guide rail slider integrated packaging structure, and the mounting direction of actuator is perpendicular with the mounting plate and is in vertical layout, the V type fixed block is locked on the mounting plate of actuator, and the linear contact is formed with the cylindrical surface of lens through V type surface to fix lens end, the light source is set up on the lower plate, and provides illumination for imaging. Solve the problem such as long cantilever, poor imaging stability, limited application scene in the prior art.

The invention discloses ship ballast water treatment equipment, and belongs to the field of sewage treatment.The ship ballast water treatment equipment comprises a treatment part, the treatment part comprises a rotational flow part, a tangential liquid inlet formed in the outer wall of the rotational flow part, a sand settling opening formed in the lower end of the rotational flow part and an overflow pipe fixed to the inner wall of the rotational flow part; the upper end of the overflow pipe is fixedly connected with the inner wall of the rotational flow part; the filter cartridge is arranged at the contraction section of the overflow pipe, and when the second liquid discharge connector is closed, liquid forcibly entering the overflow pipe passes through the filter cartridge, so that small organisms which cannot be separated by cyclone are intercepted; a first spiral flow guide flange in the expansion section can force fluid to rotate at a high speed when the fluid enters the overflow pipe, so that water flow in the contraction section is tangentially swept along the surface of the filter cartridge, and silt and organisms which attempt to be attached to the filter cartridge are continuously stripped off; the effective working time of the filter cartridge is prolonged, and the differential pressure rising speed is slowed down.

The utility model relates to a ground cleaning robot, include: robot main body, wipe ground module, integrally detachably installed at the bottom of robot main body, including support, rotatoryly support on the support and can with a pair of rotary connector joint a pair of brush disc seat, detachably attached to a pair of brush disc seat a pair of cleaning pad, be used for to a pair of cleaning pad supply clean water a pair of nozzle, with a pair of nozzle fluid communication first fluid connector and act on a pair of cleaning pad's scraper water collection component, scraper water collection component is configured to be able to remove the superfluous liquid from a pair of cleaning pad and collect the liquid, scraper water collection component includes the water collection plate of being attached to the support, the pair of scraper of being located on the water collection plate and being able to with a pair of cleaning pad's rear portion's lower surface interference contact and second fluid connector, the water collection plate is configured to be able to guide the liquid falling on it to the second fluid connector place, water supply unit and sewage recovery unit.

The application belongs to the technical field of emergency alarm, and particularly relates to an emergency communication method and system based on a mobile robot dog, which comprises the following steps: collecting multi-modal alarm data at a disaster site by the mobile robot dog, constructing a Shannon-Fano tree after encoding the data into a character sequence; screening an enabled parent node and allocating a corresponding character according to the distribution characteristics of the corresponding characters of the leaf nodes under the parent node in the sequence; when the continuous multiple characters in the character sequence are all the characters corresponding to the leaf nodes under the same enabled parent node, generating compressed data by using a prefix-suffix code word encoding mode to realize efficient compression of key alarm information; and transmitting the compressed data to a disaster emergency command center. The application improves the transmission efficiency of key alarm information at the disaster site by using an optimized encoding strategy, and provides timely and accurate information support for disaster emergency decision-making.

This invention relates to the field of electrostatic powder coating technology and discloses a powder coating device, including a spray gun nozzle, a plurality of spray gun nozzles arranged at intervals, and a baffle plate disposed between two adjacent spray gun nozzles. The baffle plates on both sides of the spray gun nozzles are symmetrically arranged, and each spray gun nozzle is installed on the same horizontal plane. The ends of two adjacent baffle plates are connected, and the ends of each baffle plate are located on the same horizontal plane, which is parallel to the horizontal plane where the spray gun nozzles are located. The powder sprayed from the spray gun nozzles passes through the ends of the baffle plates on both sides and can perform spraying on the material to be coated in a manner that meets the spraying requirements. Its advantage is that it can intercept uneven powder spray and improve the uniformity of powder coating.

The invention discloses a pavement patching device for road maintenance, and relates to the technical field of road maintenance, the pavement patching device comprises a base, the top of the base is provided with a rotary heating mechanism for preventing asphalt from being solidified, and the top of the base is also provided with a stirring mechanism for uniformly heating the asphalt; a heat preservation mechanism for slowing down asphalt solidification is further arranged outside the rotary heating mechanism, a sealing mechanism for reducing hot air overflow is arranged inside the heat preservation mechanism, the rotary heating mechanism comprises a stand column fixedly connected to the top of the base, and a storage barrel for storing asphalt is fixedly connected to the top of the stand column; the rotary heating mechanism is arranged and matched with the surrounding type fire spraying opening to dynamically and evenly heat the barrel wall, the problem that asphalt close to the barrel wall area is cooled and agglomerated due to continuous heat dissipation in a traditional static heating mode is solved, it is guaranteed that the asphalt is always kept in the temperature interval suitable for construction in the whole operation process, and the construction efficiency is improved. And the fluidity and the fitting capability with a crack interface are obviously improved.