11results about How to "Settlement fee" patented technology

The invention provides a photovoltaic module accumulated snow load detection method and device, and relates to the technical field of photovoltaic panel load experiment devices.The photovoltaic module accumulated snow load detection device comprises a rotary photovoltaic panel mounting table and an annular experiment module, the rotary photovoltaic panel mounting table is arranged in the annular experiment cabin, the accumulated snow simulation block is composed of a top plate, a bottom plate and a sponge middle layer arranged between the top plate and the bottom plate, and the thickness of the accumulated snow simulation block is adjusted so as to simulate the thickness and the weight of accumulated snow on the experiment photovoltaic panel. According to the device, the load condition of the surface of the photovoltaic panel in ice and snow weather can be simulated to the greatest extent without using ice and snow, the accumulation thickness of ice and snow and the covering weight of ice and snow can be simulated, and the device can be repeatedly used, is relatively low in cost and relatively high in practicability. Therefore, the problem that the simulation process is high in cost or the experiment effect is distorted in the prior art is solved.

The invention discloses an online purification method of industrial acetonitrile, which comprises the following steps: by taking organic sewage as a raw material, carrying out double-tower rectification, removing organic materials containing ethanol, acetonitrile and the like in the sewage through an atmospheric tower, feeding the removed organic materials into a pressurizing tower, and realizing effective separation of light components such as ethanol and the like in the organic materials from acetonitrile in the pressurizing tower; acetonitrile in organic materials is recycled, the loss of acetonitrile is reduced to 0.4 or below, the loss of acetonitrile is reduced to the maximum extent, light component impurities such as acetone and ethanol in circulating solvent acetonitrile in the extraction section of a butadiene extraction device are indirectly reduced to 1wt% or below, and accumulation of the light component impurities such as acetone and ethanol in the circulating solvent acetonitrile is inhibited.

The utility model relates to a novel excavator head capable of easily driving timber piles, which belongs to the technical field of piling and comprises a connecting steel column, a timber pile fixing mechanism is arranged on the connecting steel column and comprises a steel cylinder fixedly mounted at the bottom of the connecting steel column, and two arc-shaped clamping plates are movably mounted in the steel cylinder. Limiting rods penetrating to the outer surface of the steel cylinder are fixedly mounted on the surfaces of the arc-shaped clamping plates, threaded holes are formed in the surface of the steel cylinder, and threaded rods are in threaded connection with the interiors of the threaded holes. When the novel excavator head capable of easily driving the timber pile is used, the timber pile can be fixed in the steel cylinder through the steel cylinder, the threaded rod and the arc-shaped clamping plate, for a construction scene with a limited site, only an excavator gun head needs to be replaced, operation is flexible, repeated entering of equipment into the site is saved, and therefore the manufacturing cost is saved, and it can be guaranteed that the timber pile is smoothly and vertically driven; the operation difficulty is greatly reduced, and the working efficiency is improved.

The present invention discloses a low-energy consumption, low-carbon source addition high-ammonia nitrogen wastewater treatment process and system, the process includes the following steps: S1, pretreatment stage; high-concentration ammonia nitrogen wastewater is first subjected to denitrification and short-range denitrification reaction; S2, main reaction stage; wastewater undergoes short-range nitrification reaction, anaerobic ammonia oxidation reaction, short-range denitrification reaction and organic matter degradation; S3, stable effluent stage; the remaining ammonia nitrogen and nitrite nitrogen in the wastewater are oxidized into nitrate nitrogen, and polyphosphate bacteria are used to perform aerobic phosphorus absorption reaction. The process of the present invention adopts multi-stage process combination, precise control, high solid load solid-liquid separation and concentration technology, high-rate pneumatic lifting internal and external reflux circulation technology to not only integrate the advantages of traditional A2 / O, SBR, oxidation ditch and MBR, but also has the synchronous short-range nitrification and denitrification, short-range denitrification, and anaerobic ammonia oxidation functions that are difficult to achieve in these processes, and has the advantages of strong resistance to shock loads, low operating costs, and small footprint.

The present invention discloses a testing device and method based on a computer power supply, wherein the automatic alignment device comprises a mounting seat, the top of the mounting seat is fixedly connected with a cylinder, the top of the fixed block is symmetrically fixedly connected with a slide rail, the inner cavity of the U-shaped sleeve hole is slidably sleeved with a copper wire, the surface of the U-shaped sleeve hole is symmetrically threaded with a bolt, the clamping device comprises a driving seat, one end of the double-threaded thread is fixedly connected with a rotating handle, the surface of the double-threaded thread is symmetrically threaded with a clamping plate, and the top of the placement plate is symmetrically fixedly connected with an elastic block, and the present invention relates to the field of computer power supply detection technology. The testing device and method based on a computer power supply solves the problem that there is no professional testing device for detection, resulting in the need for external maintenance when the power supply does not start, thereby generating expenses, and in addition, in the power supply production line, there are many power supplies of different specifications and sizes, resulting in the problem that different power supplies cannot be tested at the same time.

The utility model belongs to the technical field of hydraulic bending forming, and discloses a pipe fitting hydraulic forming angle rotating device which comprises a positioning clamping mechanism, a rotating mechanism and a control assembly, the rotating mechanism is arranged on the positioning clamping mechanism in a rotating mode, and the rotating mechanism is provided with a pressure cylinder used for pressurizing a pipe fitting. The controller is installed on the positioning and clamping mechanism, after the needed rotating angle is input through the controller, the control circuit board can control the rotating mechanism to be opened, the pipe fitting is bent to the corresponding angle under the action of the rotating mechanism, and development and production of any-angle modeling of the pipe fitting are completed. The problem that bending forming cannot be achieved due to the fact that internal pressure loading is not high in an original mode that a die is used for pressing a pipe fitting in a single-head closed sealing mode is effectively solved, the problem that aluminum pipe materials and corresponding die cost are wasted due to the fact that a linear plugging section needs to be led out of a large-angle pipe fitting is effectively solved, the device is matched with the die, meanwhile, the pressurizing function is achieved, and production efficiency is improved. Development and production of any angle modeling of the pipe fitting can be completed.

This utility model discloses a cast chute for an alkali recovery boiler, comprising a chute body, a flange plate at the front opening edge of the chute body, a fixing plate at the back surface of the chute body located on the flange plate, and side plates at the top of both sides of the chute body. The chute body, flange plate, fixing plate, and side plates are cast as a single unit. An inner jacket is snapped into the top of the chute body, and a slot and a fixing slot are snapped into the interior of the chute body. This utility model eliminates the water-cooled jacketed structure and adopts a dry-firing structure. The cast components are resistant to high temperatures of 1300℃ and can withstand the corrosion and wear of 1000℃ high-temperature molten lava in alkali recovery boilers. It has no complex circulating cooling water system, a long service life (generally more than 6 months), and no leakage or cracking occurs during its service life, eliminating safety hazards. The chute replacement time coincides with the normal boiler maintenance time, making it convenient to use and solving the problems of safety hazards and high operating costs associated with existing water-cooled jacketed chutes.

The present invention provides a photovoltaic module snow load detection method and device, which relates to the technical field of photovoltaic panel load experimental devices, including: a rotating photovoltaic panel mounting platform, the rotating photovoltaic panel mounting platform is composed of a rotating base, a supporting platform and a photovoltaic panel mounting frame, an annular experimental cabin, the rotating photovoltaic panel mounting platform is arranged in the annular experimental cabin, and a snow simulation block, the snow simulation block is composed of a top plate, a bottom plate and a sponge middle layer arranged therebetween, the thickness and weight of snow on the experimental photovoltaic panel are simulated by adjusting the thickness of the snow simulation block, and a simulated air outlet plate is used to simulate natural wind in a snowy environment. The present invention can simulate the load condition of the surface of the photovoltaic panel in ice and snow weather to the greatest extent possible without using ice and snow, can simulate the accumulation thickness of ice and snow and the covering weight of ice and snow, and the device can be used repeatedly with low cost, thereby solving the problems of high simulation process cost or distorted experimental effect in the prior art.

The sand core comprises a chromium ore auxiliary core, a sand filling opening, a chromium ore layer, a core bar and an inner-layer sand core, the sand filling opening is formed in the chromium ore auxiliary core, and the chromium ore layer and the inner-layer sand core are sequentially arranged in the chromium ore auxiliary core from top to bottom; the core bar is further arranged in the chromium ore auxiliary core, and the chromium ore auxiliary core, the chromium ore layer and the inner-layer sand core are stringed into a whole. The invention further discloses a core manufacturing method of the sand core for the steel casting. According to the technical scheme, the problems that a casting is prone to sand burning and sintering, the mold manufacturing period is long, and the cost is high are solved, mold-free rapid production and sand core integrated forming are achieved, the quality of the casting is guaranteed, meanwhile, the sand core weight is reduced, and the production cost is saved.

The present invention provides a pretreatment system and method for deep purification of coke oven gas, which belongs to the field of coke oven gas purification, in order to solve the problem that impurities in coke oven gas before comprehensive utilization may cause compressor blockage and premature failure of desulfurizer for fine desulfurization, thereby increasing operating costs. It includes a pre-wash tower, a four-phase separator, a circulating pump and a heat exchanger, wherein the pre-wash tower is a supergravity rotating device, and the four-phase separator is a horizontal three-weir type gas-liquid-liquid-liquid separator, wherein: the gas phase inlet of the pre-wash tower is connected to the coke oven gas pipeline, the liquid phase outlet of the pre-wash tower is connected to the feed port of the four-phase separator, the intermediate phase fluid outlet of the four-phase separator is connected to the liquid inlet of the circulating pump, the liquid outlet of the circulating pump is connected to the liquid inlet of the heat exchanger, and the liquid outlet of the heat exchanger is connected to the liquid phase inlet of the pre-wash tower.

The invention relates to the technical field of valve control meter shell manufacturing, in particular to a stainless steel valve control meter shell and a manufacturing method thereof, and the method comprises the steps of manufacturing a metering cavity pipe section, a ball valve cavity pipe section, a water inlet pipe, a connecting pipe and a water outlet pipe and welding to obtain the stainless steel valve control meter shell. Compared with a valve control meter shell manufactured by using an integral casting process in the prior art, a forming mold is not used, the problems of high cost and short service life caused by the forming mold are solved, the problems of long production period and long machining time are also solved, the cost is reduced, and the finally formed valve control meter shell is small in mass and does not have the defects of sand holes, air holes and the like. Compared with a valve control meter shell manufactured by using an integral welding process in the prior art, the valve control meter shell has the advantages that the machining procedures of blanking, deep drawing, chambering, rotary cutting and the like are not needed, and the selected existing pipe fitting is hollow, so that parts such as a valve rod matching middle hole, a valve mounting hole and the like do not need to be machined, and the problems of complex process and more cutting wastes caused by a machining process are solved.