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

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 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 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 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 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.