42results about How to "High speed flow" patented technology

The invention relates to a jet laser composite cleaning method and a cleaning system. A water film and a water film cavitation bubble breaking impact cleaning base material surface are generated, andmeanwhile, a laser is focused in the water film, the water film explodes in a super-heating state, the water film is vigorously vaporized, steam bubbles are generated to impact the surface of base materials, and the effective action time of cavitation jet is prolonged. The cleaning system comprises an cavitation jet device and a laser cleaning device; and the laser beam and the center line of thecavitation jet are coplanar, the cavitation jet flow generates the water film on the surface of a workpiece, the laser beam is focused in the water film and keeps a distance from the surface of the workpiece, and the laser beam and the cavitation jet flow act on the surface of the workpiece on a workbench to be cleaned, so that the effect is obviously superior to that of the existing cleaning technology, solid particles with the surface diameter larger than 50 nm can be removed, and the surface processing requirements of the wafer base materials can be met.

The invention discloses a spiral venturi scrubber comprising a venturi pipe and a first water-sealing type water discharging device, wherein the venturi pipe is formed by connecting a retractable pipe, a compressed throat pipe and a spiral gradually-expanded pipe in sequence; the retractable pipe and the spiral gradually-expanded pipe are internally and respectively provided with first and second spraying and washing devices; and the bottom of the scrubber is provided with a water outlet which is connected with the first water-sealing type water discharging device. The invention further discloses a wet-method desulphurization and denitration dust-collecting system comprising a main desulphurization dust-collecting tower, a secondary desulphurization dust-collecting tower, a dehydrator and the spiral venturi scrubber; and the scrubber is communicated with the bottom end of the main desulphurization dust-collecting tower through a connecting flue; the top of the main desulphurization dust-collecting tower is communicated with the top of the secondary desulphurization dust-collecting tower through the dehydrator; and an air inlet of the secondary desulphurization dust-collecting tower is higher than the bottom surface of the dehydrator. The spiral venturi scrubber has the advantages of small volume, low energy consumption, high dust-collecting efficiency, good desulphurization and denitration effects and the like.

The invention relates to a method and a device for continuously concentrating glyoxylic acid. A glyoxylic acid solution is concentrated by adopting a method of continuously adding a stock solution and extracting a concentrated solution. The method comprises the following steps: a switch-on vacuum debugging process, an early feeding concentration stabilizing process, a continuous feeding and extraction adjusting process, a normal continuous concentration process, a distillate intermittent transfer process and a concentration ending halt process. The device comprises an evaporator, a heater, a demister, a condenser, a receiving tank, a buffer tank, a scrubber tank, a high vacuum unit, a stock solution container, a concentrated solution container, a distillate container, an extracting pump, a distillate delivery pump, a stock solution feeding flow meter, a concentrated solution extraction flow meter and the like. The method and the device can realize continuous production of concentrated glyoxylic acid, the concentration efficiency is high, the equipment capacity can be obviously improved, the materials are short in heating time and low in temperature, the product is high in quality, high in yield and low in energy consumption, the service life of glassed steel equipment can be prolonged, and the labor intensity of workers is reduced.

The invention discloses a capillary aluminum pipe for the high-speed flowing of gallium-based liquid metal containing an oxide layer and a preparation method of the capillary aluminum pipe. The preparation method comprises the following steps: (1) pretreating the capillary aluminum pipe; (2) carrying out electrochemical machining on the inner wall of the capillary aluminum pipe; (3) anodizing theinner wall of the capillary aluminum pipe, wherein the step (2) and the step (3) jointly complete preparation of the surface microstructure of the capillary aluminum pipe, so that regular square grooves are formed in the surface of the inner wall of the capillary aluminum pipe; (4) performing surface modification treatment, and completing the oleophylic decoration of the inner wall of the capillary aluminum pipe, and (5) injecting surface pre-infiltration liquid, and completing the preparation of the ultra-smooth capillary aluminum pipe. According to the invention, the application of gallium and gallium-based liquid metal in the aluminum-based capillary tube is realized, and due to the existence of the surface oxide layer and the pre-injection liquid layer, the driving power consumption during the driving of the liquid metal is effectively reduced, and the direct contact between the gallium-based liquid metal and the capillary aluminum tube is isolated, so that the occurrence of embrittlement reaction is avoided.

The invention provides a control method for a kitchen air conditioner, electronic equipment and a storage medium. The control method for the kitchen air conditioner comprises the steps that the smoke concentration in a kitchen is obtained; and when the smoke concentration is greater than a first smoke preset value, an indoor fan is controlled to operate at a high speed, and a fresh air ventilator is controlled to operate at a high speed. According to the control method for the kitchen air conditioner provided by the embodiment of the invention, the structure of the air conditioner or a range hood does not need to be changed, so that the cost is reduced, and the kitchen cooking experience of a user is improved.

The invention discloses a water reaction metal fuel cyclone punching power generation system, and aims to solve the problems of low efficiency, environmental pollution, high fuel consumption and the like in traditional power generation modes. The water reaction metal fuel cyclone punching power generation system comprises a water storage container, a high-pressure pump, a high-pressure power system, a water pressure stabilizing unit, a machine box, a cyclone generator, an air supply system, a punching cone, a combustion chamber, a turbine set, a generator set and a waste gas treatment device.The water reaction metal fuel cyclone punching power generation system realizes controllable continuous reaction of water and metal particles under the conditions of normal temperature and normal pressure, is low in cost and high in efficiency, and is adopted as a power source of a power generation system to realize continuous and stable power generation of the power generation system. Further, the water reaction metal fuel cyclone punching power generation system adopts the water and metal reaction, so that the fuel cost is reduced, the ecological environment is not polluted, higher power generation efficiency and adaptability are achieved, and higher actual application value is achieved. The water reaction metal fuel cyclone punching power generation system is skillful in concept and reasonable in design, and can adapt to various working conditions to achieve wide application prospect.

The invention relates to a water heater pipeline. The water heater pipeline comprises a cold water pipe and a hot water pipe, wherein the cold water pipe and the hot water pipe communicate with a water mixing pipe, a separation membrane extending along the axis of the hot water pipe is arranged in the hot water pipe, the separation membrane divides the hot water pipe into two water channels, a control valve is arranged at one end of the separation membrane, the control valve comprises a fixed rotating shaft arranged on the separation diaphragm, a rotating cylinder is arranged on the fixed rotating shaft in a sleeving mode, a sealing door and a circulating net are arranged on the rotating cylinder, a control strip is further arranged in the hot water pipe, a regulating valve is arranged atthe water outlet end of the cold water pipe, the regulating valve comprises a limiting groove and a sealing baffle arranged in the limiting groove in a sliding mode, a control board is arranged between the sealing baffle and the pipe wall of the pipeline, the change of the control board can be changed along with the change of the temperature, and a flow guide hole is formed in the sealing baffle.The water heater pipeline is unique in principle and capable of effectively shortening the hot water waiting time and meanwhile reducing waste of water resources.

The invention discloses a blast device of a microwave oven. The blast device comprises a hot air convection mechanism which is arranged on the microwave oven, wherein a hot air outlet communicated with an air outlet channel of the hot air convection mechanism is formed in the inner wall of an oven cavity of the microwave oven; a blast container is arranged in the oven cavity and comprises an oil receiving disc, a blast hood and a food shelf; the blast hood is arranged on the oil receiving disc and a cavity is formed by enclosure of the blast hood together with the oil receiving disc; the food shelf is arranged on the oil receiving disc and in the cavity; an opening is formed in the blast hood and is communicated with the cavity and the hot air outlet; the inner wall of the blast hood is arc-shaped; an air guide groove is formed in the inner wall of the blast hood; and one end of the air guide groove is arranged at the opening and the other end of the air guide groove is arranged at the food shelf. The blast device of the microwave oven has the characteristic of being reasonable and simple in structure, flexible to operate and low in manufacturing cost.

The invention belongs to the technical field of fine chemical engineering, and in particular relates to a method and equipment for preparing paranitrobenzoyl chloride. The method comprises the following steps: performing a refluxing reaction on nitrodracylic acid and thionyl chloride under the effect of a catalyst, distilling and recycling the thionyl chloride under the normal pressures and the reduced pressure respectively after the reaction so as to obtain a crude product of the paranitrobenzoyl chloride; allowing the crude product to enter into an one-stage film evaporator through a high-level tank to distil the residual thionyl chloride at a reduced pressure, and then distilling and refining a reactant by a two-stage film evaporator under the condition of high vacuum so as to obtain the paranitrobenzoyl chloride. In the method, the two stages of the film evaporators are adopted in the refining process, because the heat transfer area is large and the efficiency is high, the residual thionyl chloride and the residual catalyst in reaction liquid can be effectively removed, time for distilling and refining is shortened, side effects and impurities are prevented, and the method has the characteristics that the method is simple and practicable to operate, the production cycle is short, the product yield is high, and the impurity content is low; the production equipment disclosed by the invention has the advantages that the operation is convenient, and the work efficiency is substantially improved.

The invention provides an exhaust device of a plastic thin film extruder, belongs to the technical field of machinery and solves the problem of inconvenience in assembling of an existing forming machine. In the exhaust device of the plastic thin film extruder, the plastic thin film extruder comprises a rack and an extrusion cylinder which is transversely arranged on the rack; the exhaust device comprises an exhaust pipe arranged above the extrusion cylinder; the left end of the exhaust pipe is sealed, and the right end is opened; the rack is fixedly provided with an exhaust pump; a right end opening of the exhaust pipe is communicated with an air inlet of the exhaust pump; a tubular sliding part is arranged on the outer side wall of the left end of the exhaust pipe; a tubular locating part is arranged on the outer side wall of the extrusion cylinder; the lower end of the sliding part is inserted in the locating part; a locking mechanism which can be used for limiting the sliding of the sliding part is arranged between the sliding part and the locating part; a tubular air inlet part is arranged on the side wall of the middle part of the exhaust pipe; a tubular exhaust part is arranged on the side wall of the middle part of the extrusion cylinder; the upper end of the exhaust part is inserted in the air inlet part; sealing between the exhaust part and the air inlet part is formed through a sealing ring. The exhaust device provided by the invention has the advantage of convenience in assembling.

The invention discloses a dynamic circulation liquid metal environmental material corrosion test system, the system comprises a gas pump, a melting storage tank, a circulating pump, a heater, a stress corrosion device, an oxygen control box and an air cooler, and the circulating pump, the heater, the stress corrosion device, the oxygen control box, the air cooler and the circulating pump are sequentially connected through pipelines to form a test system loop. The upper end of the melting storage tank is connected with the gas pump through a gas pipeline, the bottom of the melting storage tank is connected with the test system loop through a liquid pressing pipeline, and a heating device for melting solid metal is arranged in the melting storage tank. The test system provided by the invention can simulate the actual service condition of a nuclear power station, and provides a loading liquid metal environment with high flow velocity and stress for a test material.

The invention discloses a switching power supply system capable of recovering heat, and relates to the field of switching power supplies. The switching power supply comprises a casing, a circuit board arranged in the casing, and a heat conversion device penetrating the interior and the exterior of the casing, wherein the heat conversion device comprises a heat conducting device and a heat collecting device; a gas inlet valve and a gas outlet valve are arranged on the heat collecting device; an air pipe is connected with the gas outlet valve; the air pipe is connected with a power generation device. By centralizedly mounting heat producing electronic devices in the position of the heat conducting device, and guiding heat produced by the switching power supply during operation into the heat collecting device, gas in a heat conducting air pipe is expanded, the gas outlet valve is opened, thermal gas flow is formed and flows at high speed in the air pipe, the fact that heat energy is converted into kinetic energy is realized, the thermal gas flow flowing at high speed can further drive the power generation device to generate electricity, the recycling of heat energy is realized, and the switching power supply system effectively saves energy and is environment-friendly.

The invention discloses a heavy metal zero discharge treatment system which comprises a pretreatment system, a low-concentration cleaning wastewater pretreatment system and a high-concentration wastewater treatment system, the low-concentration cleaning wastewater pretreatment system comprises a sterilization and ultrafiltration unit and a multi-stage RO concentration unit, and the output end of the pretreatment system is connected with the water inlet end of the sterilization and ultrafiltration unit; the output end of the sterilization and ultrafiltration unit is connected with the multi-stage RO concentration unit, and the output end of the multi-stage RO concentration unit is connected with the input end of the high-concentration wastewater treatment system. The heavy metal zero-discharge treatment system is simple in structure, reasonable in design and easy to produce, the structure of the discharge system is optimized, multi-stage purification treatment is achieved, the sewage treatment effect is greatly improved, zero discharge is achieved, and therefore the heavy metal zero-discharge treatment system better meets the production requirement.

The invention discloses a safe air conditioner mounting method based on an outdoor unit. The mounting method comprises the following steps that mounting preparation is conducted, specifically, a proper transportation mode is selected according to a target mounting position of an outdoor unit main body, a transportation path of the outdoor unit main body is planned, meanwhile whether a shell of theoutdoor unit main body is intact or not is checked, and assemblies are pre-mounted; an operator firstly separates the upper portion and the lower portion of a simple isolation mounting mechanism, andthen the lower half portion of the simple isolation mounting mechanism which is small in size and less in weight is mounted on an outdoor unit support located on the outer wall of a building throughbolts; and transportation and mounting are conducted, specifically, a portable protection and transportation mechanism is quickly spliced with the outdoor unit main body. By improving the mounting mode of the air conditioner outdoor unit, the positioning efficiency of the air conditioner outdoor unit can be effectively improved, when the air conditioner outdoor unit is mounted on the outer wall ofthe building, quicker positioning can be realized, so that the hanging time of the air conditioner outdoor unit is shortened, and the safety coefficient of the air conditioner outdoor unit in the mounting process is further improved.

The invention discloses a switching power supply for a power generation device, and relates to the field of the switching power supply. The switching power supply for the power generation device comprises a shell, a circuit board arranged in the shell and a heat conversion device, wherein the heat conversion device penetrates through the shell from inside to outside and comprises a heat conducting device and a heat collecting device; the heat collecting device is provided with a gas inlet valve and a gas outlet valve; the gas outlet valve is connected with an air pipe; the air pipe is connected to the power generation device; a gas in a heat insulation cylinder expands through centrally arranging heating electronic devices on the heat conducting device and introducing heat generated by the switching power supply during work into the heat collecting device, the gas outlet valve is opened; and hot airflow is formed to flow in the air pipe at a high speed, so that conversion of heat energy into kinetic energy is achieved; the power generation device can be driven by the airflow flowing at the high speed for power generation, so that recycling of the heat energy is achieved, the energy is effectively saved and the environment is protected.

The invention discloses an unpowered internal combustion jet ladle heating device. The unpowered internal combustion jet ladle heating device is characterized in that a heat exchange chamber is arranged on a steel ladle cover; exhaust holes are evenly distributed in the periphery of the steel ladle cover, and the exhaust holes are communicated with exhaust pipes in the heat exchange chamber; the exhaust pipes are communicated with an exhaust port; air inlet pipes are also arranged in the heat exchange chamber; the upper portion and the lower portion of each air inlet pipe are communicated with an air inlet and a combustion supporting air pipe respectively; a high-temperature-resistant gas pipe is arranged in the combustion supporting air pipe; the air inlet pipes are arranged in the exhaust pipes; an air flow measurement device and a gas flow measurement device are connected to a PLC; the PLC automatically adjusts the opening degree of an electric regulating valve according to feedback values of the air flow measurement device and the gas flow measurement device, so that the air-fuel ratio is controlled. According to the unpowered internal combustion jet ladle heating device, heat energy of waste gas is fully used for heating combustion supporting air by arranging a heat recovering system, and thus energy is saved; meanwhile, the air-fuel ratio is controlled through the PLC, and thus combustion is made more sufficient.