31results about How to "Solve the problem of pouring" patented technology

The invention provides concrete warehousing pouring construction equipment and method. A main winch of the construction equipment is connected with a vibration hopper lifting lug, an auxiliary winch is connected with a guide pipe valve, a clamp-on vibrator is mounted in a vibration hopper, a vibration hopper valve is connected with the lower end of the vibration hopper and connected with a guide pipe, the guide pipe is connected with the guide pipe valve, a concrete pump truck is connected with a concrete delivery pipe through a braided rubber tube, and an outlet end of the concrete delivery pipe is in butted joint with the vibration hopper. The construction method comprises steps as follows: (1), performing preparation of pre-construction; (2), enabling the equipment to be in place; (3),feeding the vibration hopper by the concrete pump truck; (4), pouring the concrete; (5), moving and adjusting positions of the vibration hopper and the guide pipe to finish concrete pouring. In the concrete pouring construction process of marine traffic engineering buildings, the problems of backward flowing and pipe blocking can be solved, the poured concrete quality is high, the construction efficiency is high, and environmental pollution is reduced.

The invention provides a buried turning plate type water stop gate. The buried turning plate type water stop gate comprises a gate frame, a water stop gate plate, a power executing mechanism connected with the water stop gate plate, a power control system for controlling the power executing mechanism, and a sealing system and further comprises a bottom rack connected to the interior of buried space. The upper end of one side of the bottom rack is connected with a water stop gate plate door shaft. The height position of the water stop gate plate door shaft is matched with that of the upper edge of the buried space. The water stop gate plate is hinged to a door shaft seat fixed to the bottom rack through the water stop gate plate door shaft. The water stop gate plate is flush with the ground after being closed. The power executing mechanism comprises at least one set of folding type connecting rod structures connected between the water stop gate plate and the bottom rack and hidden in the buried space in a folded mode. The buried turning plate type water stop gate is good in water stop sealing performance, high in anti-hydraulic-pressure strength, reliable in structural performance, high in mechanical automation degree, high in adaptability, complete in function, convenient to maintain and small in buried depth size; the whole device is buried and hidden, so that space is saved, and labor cost is reduced.

The invention discloses a novel embedded junction box, relating to the field of electrification manufacture. The novel embedded junction box consists of a box body (1), wiring-passing holes (2), a baffle (3) and a connecting block (4), wherein the wiring-passing holes (2) are uniformly arranged around the box body (1); and the baffle (3) is fixedly connected with the box body (1) by the connecting block (4). The invention can effectively solve the problem in the prior art that concrete backward flows, is greatly convenient for construction of embedded wire tubes, saves a large amount of labor force and improves the construction quality.

The invention discloses a method using vanes to discharge flue gas and a flue gas drain valve, which belongs to the technical field of flue gas discharge. The flue gas drain valve comprises a valve body and vanes; a flue gas outlet is arranged in the valve body; the vanes are arranged in the flue gas outlet; and the vanes can rotate along rotating shafts thereof. The flue gas drain valve is characterized in that two vanes are adopted; each vane is opened left and right; when the flue gases are discharged, the two vanes are opened respectively along the rotating shafts thereof, and the flue gas outlet is smooth; and when the discharge of the flue gases is stopped, the two vanes return, are closed and contacted with each other. As the vanes are opened left and right, the defects of a small flue gas discharge area and larger force needed for opening the vanes brought by an upper-lower opening way are avoided. As a front vane and a rear vane are overlapped when being closed, the two vanes can be completely sealed after being closed, and the reversing problem of oil smokes is solved. The outer edge parts of the front vane and the rear vane can not leak smoke, which completely stops the phenomenon of smoke leaking. The invention can be used for flue terminals and ventilators, and can also be broadly used for opening and sealing gas and liquid flows.

The disclosure provides a cleaning device and a substrate cleaning method. The cleaning device includes a driving part, a plurality of gripping parts, a plurality of telescopic rods and a cleaning part, the driving part includes a driving motor, a guide rail and a plurality of sliders arranged at intervals on the guide rail, and the gripping part is used for grabbing and placing To clean the substrate, one end of the telescopic rod is connected to one or more grasping parts, and the other end of the telescopic rod is connected to the slider. The telescopic rod is used to adjust the distance between the grasping part and the driving part. The cleaning part is set on The gripping part is away from the side of the driving part, so that the surface to be cleaned of the substrate faces the cleaning part, and the bottom-up cleaning of the substrate is realized. The cleaning liquid generated by the cleaning part drops due to the influence of gravity, so as to solve the cleaning problem. For the problem of device liquid backflow, the pollutants attached to the surface of the substrate to be cleaned will not cause secondary adhesion due to gravity, thereby improving the cleaning effect of the cleaning device for cleaning the substrate.

The embodiment of the invention discloses a range hood and a control method thereof. The range hood comprises a casing (10), a fan (11) inside the casing, an air duct defined by the casing (11), a built-in A sensor (12) in the air duct, and a controller (13) connected with the blower fan (11) and the sensor (12), it is characterized in that the range hood includes a smoke prevention program; the controller (13) It is configured to judge whether to start the fan (11) according to the signal fed back by the sensor (12). The solution can detect the smoke in time, and can intelligently distinguish the source of the smoke, so as to prompt the user to take relevant measures to keep the indoor air fresh. At the same time, it makes up for the leakage caused by the tight closure of the fire check valve or the anti-smoke treasure and the leakage caused by the loose connection of the range hood pipes in the kitchen.

The invention discloses a range hood. Wood boards and sponges are installed in the water tank of the range hood. The wood boards are pressed above the sponges. The sponges are used to absorb the oil fumes entering from the air inlet pipes. The bottom of the water tank is filled with clean water, and the clean water is used to react with the oil fume not absorbed by the sponge; through the use of the present invention, a completely closed space is formed from the air inlet pipe to the outer pipe connecting body, So that the oil fume will not leak out; the centrifugal impeller in the centrifugal fan and the inside of the box are not in direct contact with the oil fume, but contacted after filtering through the sponge and clean water, so that the inside of the range hood will not be greasy; the water tank is cleaned by the clean water in the water tank A closed environment is formed inside, which solves the problem of wind blowing backward; through the use of the windshield quilt of the front oil collection part and the use of side baffles, the leakage of oil fume to the outside can be effectively prevented.

The invention belongs to the technical field of preparation of bottlenecks and particularly relates to a preparation method for a bottleneck of a liquid packaging bag. The preparation method mainly comprises the following steps: adding uniformly mixed raw materials in a set proportion into a heated injection moulding machine; setting the injection pressures, speeds, injection times and injection dispense volumes of different sections of the injection moulding machine and setting holding pressure and holding time to obtain the optimum injection moulding process, and thus finally efficiently and quickly obtaining a qualified product. The preparation method provided by the invention fully considers the realization ability of the mould so as to optimize the realization ability of the mould from source, so that the mould production cycle is extremely lowered and the capacity is remarkably improved.

The invention relates to an integrative cooking utensils of lampblack absorber and cooker, comprising a cabinet body, a plurality of cylindrical sunken stove holes are formed in the panel of the body, a cooker is provided on the soleplate of the stove holes, a handle hole in one side of the stove holes faces person, the air inlet of a blower is set in the gas collecting tank. The blower is connected with an exhaust pipe; a lifting ring can be connected to the outer face of wall of the cooking stove sleeve in sliding way, and the cavity of the lifting ring is connected with the gas collecting tank; when the lifting ring lifts, inside part exposed from wall of the cylindrical stove holes is opened with an air suction port, and the lifting ring is connected with a driving mechanism so as to avoid the outside air from flowing back.

The invention relates to a zero-crossing detection circuit.The zero-crossing detection circuit comprises a sampling circuit unit, a feedforward access circuit unit and a comparison circuit unit.The sampling circuit unit receives a reference signal and a zero-crossing signal, outputs a first output signal according to the reference signal and outputs a second output signal according to the zero-crossing signal; the feedforward access circuit unit receives the first output signal and the second output signal, outputs a third output signal according to the first output signal and outputs a fourth output signal according to the second output signal; the comparison circuit unit outputs a first voltage signal according to the second output signal and the third output signal, outputs a second voltage signal according to the first output signal and the fourth output signal and outputs a zero-crossing detection control signal according to the first voltage signal and the second voltage signal.The first output signal and the second output signal are transmitted to the comparison circuit unit in a reverse superposition mode, an input of the comparison circuit unit is increased, and therefore transconductance of the comparison circuit unit is improved, and a transient response of the zero-crossing detection circuit is accelerated.

The invention relates to a multitube convergence inspection well with tube tops in flush joint. The multitube convergence inspection well comprises a well shaft, a well base, and a bell mouth which is arranged on the well base and connected with a main pipeline, wherein a well lid base and a well lid are arranged on the well shaft; at least two interfaces connected with branch pipelines are further arranged on the well base in parallel; each interface comprises a pipeline bell mouth integrated with the main pipeline; pipe joints of two or three pipe diameters in a small hole, a medium hole and a big hole are coaxially arranged on the well base; and central lines of the pipe joints are arranged above the central line of the well base. The multitube convergence inspection well disclosed by the invention is novel in conception, the pipe joints of the most three common specifications are coaxially arranged and can be machined on site according to actual needs in a construction site, the operation is simple and convenient, and the multitube convergence inspection well in such a structure is more beneficial to large-batch manufacture, so that the production cost is lowered and the production cycle is reduced; and the upper edge of the pipe joint with the maximal pipe diameter is parallel and level to the upper edge of the well base, so that falling is formed due to water level rise during pollution or water discharge, and thus, the flow rate of discharged pollution or water is increased and the problem of downstream backward flowing is solved.

The invention is suitable for the field of circuit design, and provides a control circuit and a totem-pole PFC topological circuit, the control circuit comprises a voltage acquisition unit and a signal output unit, the voltage acquisition unit is used for sampling a current signal flowing through a target detection unit, and the signal output unit is used for outputting the sampled current signal; a sampling voltage signal obtained through sampling and a built-in reference voltage signal are sent to the signal output unit, the signal output unit is used for comparing the sampling voltage signal with the reference voltage signal, when the sampling voltage signal is larger than the reference voltage signal, a first control signal is output to the controlled unit, and when the sampling voltage signal is smaller than the reference voltage signal, a second control signal is output to the controlled unit; and outputting the second control signal to the controlled unit. According to the embodiment of the invention, the switching-on or switching-off of the switch of the PFC topology circuit is controlled according to the sampling voltage signal and the reference voltage signal, so that the problem of current backward flowing when the inductive current crosses zero can be effectively solved.

The invention discloses an independent liquid level pressurization control system and method for a multidigit parallel pressurization casting device. The system comprises a platform for placing casting molds; the platform is provided with multiple liquid filling ports; multiple melt insulation furnaces are arranged under the platform; each liquid filling port communicates with one insulation furnace through a liquid rising pipe; and each melt insulation furnace is pressurized for mold filling through an independent pressure control system. The system performs the mold filling on melts in a molding cavity in a manner of similar to laminar currents, so that the local condensation feeding capacity is improved in a targeted manner, the dispersive shrinkage defect of castings is reduced or eliminated, and the pinhole degree and the looseness of large aluminum alloy castings can reach grade I.

The invention provides a multistation roller shutter type automatic lifting flood proof baffle structure. The structure comprises a left roller and a right roller, which are in mutual transmission, wherein a water retaining shutter and a roller shutter are respectively wounded around the left roller and the right roller; sliding slots are formed below two end parts of the left roller and the right roller; rope chains are arranged in the sliding slots; the two ends of the rope chains are respectively fixed on the left roller and the right roller; the left roller or the right roller is connected with a motor. The multistation roller shutter type automatic lifting flood proof baffle structure provided by the invention can be widely applied in the building development project, and solves the problem of backflow due to overhigh water level. Meanwhile the structure has the advantages that the operation is simple; normal personnel passing cannot be influenced; the operation is reliable; economy and practicability are achieved; the backflow of the water can be effectively prevented; the manpower and the material resource can be reduced.

The invention relates to an integrative cooking utensils of lampblack absorber and cooker, comprising a cabinet body, a plurality of cylindrical sunken stove holes are formed in the panel of the body, a cooker is provided on the soleplate of the stove holes, a handle hole in one side of the stove holes faces person, the air inlet of a blower is set in the gas collecting tank. The blower is connected with an exhaust pipe; a lifting ring can be connected to the outer face of wall of the cooking stove sleeve in sliding way, and the cavity of the lifting ring is connected with the gas collecting tank; when the lifting ring lifts, inside part exposed from wall of the cylindrical stove holes is opened with an air suction port, and the lifting ring is connected with a driving mechanism so as to avoid the outside air from flowing back.

The application provides a control method and device for air conditioning equipment, electronic equipment, and storage medium, wherein the control method for air conditioning equipment includes: real-time monitoring of the start-stop status of a range hood in a kitchen; If the start-stop state of the kitchen range hood is changed to ON, then according to the detected gear of the range hood, the first outlet of the air-conditioning device is adjusted to exhaust air to the outside, and the second outlet of the air-conditioning device is adjusted. The air outlet sends air to the target position; wherein, the gears opened by the first air outlet and the second air outlet are synchronized in real time with the gears opened by the range hood; the target position is set by the air conditioning equipment Location, used to indicate the location of the floor drain. Therefore, based on the start-stop state and the opening range of the range hood, by adjusting the first air outlet and the second air outlet of the air conditioning equipment, the problem of gas backflow in the smoke exhaust pipe and floor drain is effectively solved.

The invention relates to a rainwater and sewage flow converging and intercepting device. The device is characterized by comprising a well body, an isolation plate, an overflow weir and a louvered valve. The well body is made of high molecular material in an integrated injection molding mode. A flow converging tube, an overflow tube and a flow intercepting tube are arranged on the well body. The interior of the well body is divided into a water inlet cavity, a water drainage cavity and an overflow cavity through the overflow weir, the louvered valve and the isolation plate. The flow converging tube is communicated with the water inlet cavity, the overflow tube is communicated with the overflow cavity, and the intercepting tube is communicated with the water drainage cavity. According to the rainwater and sewage flow converging and intercepting device, the well body is made of the high molecular material in the integrated injection molding mode, so that the leakage problem of a traditional bricked well is solved, and secondary pollution is eradicated; through reasonably arranging the water inlet cavity, the water drainage cavity and the overflow cavity, the device achieves rainwater and sewage flow converging and intercepting, and meanwhile the problem that external water bodies flow backward is solved.

The invention discloses a dual-power supply system. The dual-power supply system comprises a voltage comparator and a low dropout linear regulator, wherein a control signal is generated by the voltage comparator according to a comparison result of a first power supply and a second power supply, low dropout linear voltage stabilizing can be carried out on the first power supply and / or the second power supply by the low dropout linear regulator according to the control signal, and the low dropout linear regulator comprises a first transistor, a second transistor, a first switch, a current mirror circuit and a voltage stabilizing circuit; when the control signal is output by the voltage comparator for controlling a movable end of the first switch to be connected with a fixed end of the first switch, the first transistor is switched on under the action of the current mirror circuit and the second voltage, the second transistor is switched on under the action of the bias voltage generated by the first transistor, and the first power supply can be output to the voltage stabilizing circuit through the first transistor. According to the dual-power supply system disclosed by the invention, the area of a chip and the complexity of a circuit can be reduced, and the design cost is effectively reduced.

The invention provides a waste gas desulfurization and inert gas supply integrated device. The device comprises: a washing tower which is of a double-layer tower structure with an inner layer and an outer layer and comprises an inner tower and an outer tower, wherein an engine waste gas inlet is formed in the bottom of the inner tower and used for being connected with a ship engine, and an engine waste gas exhaust port is formed in the top of the inner tower, a boiler waste gas inlet is formed in the bottom of the outer tower and used for being connected with an oil burning boiler, and a boiler waste gas exhaust port is formed in the top of the outer tower and connected with a boiler waste gas exhaust pipeline; a spraying layer arranged in the inner tower, connected with a seawater pump and used for spraying seawater into engine waste gas; and a liquid collecting plate arranged in the inner tower, positioned below the spraying layer, and used for collecting the sprayed seawater and guiding the collected seawater into the outer tower.

The invention discloses a method using vanes to discharge flue gas and a flue gas drain valve, which belongs to the technical field of flue gas discharge. The flue gas drain valve comprises a valve body and vanes; a flue gas outlet is arranged in the valve body; the vanes are arranged in the flue gas outlet; and the vanes can rotate along rotating shafts thereof. The flue gas drain valve is characterized in that two vanes are adopted; each vane is opened left and right; when the flue gases are discharged, the two vanes are opened respectively along the rotating shafts thereof, and the flue gas outlet is smooth; and when the discharge of the flue gases is stopped, the two vanes return, are closed and contacted with each other. As the vanes are opened left and right, the defects of a small flue gas discharge area and larger force needed for opening the vanes brought by an upper-lower opening way are avoided. As a front vane and a rear vane are overlapped when being closed, the two vanescan be completely sealed after being closed, and the reversing problem of oil smokes is solved. The outer edge parts of the front vane and the rear vane can not leak smoke, which completely stops thephenomenon of smoke leaking. The invention can be used for flue terminals and ventilators, and can also be broadly used for opening and sealing gas and liquid flows.

This application relates to the technical field of nuclear auxiliary systems of nuclear power plants, and discloses a nuclear island exhaust and water delivery pipe network system for mega-kilowatt nuclear power plants, including a first pump set, a first drain pipeline, a second pump set, a Two drain pipelines and containment drain pits. The first pump group includes a first water pump and a first drain pan, one end of the first drain line communicates with the first drain pan, and the leakage water in the first drain pan is discharged into the first drain line. The second pump set includes a second water pump and a second water receiving pan, and one end of the second drainage pipeline communicates with the second water receiving pan. The other end of the first drainage pipeline and the second drainage pipeline converge into one pipeline and extend to the containment drainage pit. In the improved nuclear island exhaust and water delivery pipe network system, an independent drainage line is formed between the first drain line and the second drain line and the containment drain pit, which can meet the requirements of the first drain line and the second drain line. The pipeline's demand for drainage volume and drainage speed is conducive to solving the problem of wastewater backflow.