12 results about "Oil free" patented technology

The invention discloses portable pipe supply diving gas supply equipment, which belongs to the technical field of diving equipment, and comprises a power control unit, a gas compression unit and a gas treatment unit, the power control unit is used for converting an input power supply into controlled driving electric power, and the power control unit, the gas compression unit and the gas treatment unit are used for buffering, purifying and adjusting the pressure of compressed gas. Outputting to the diver; the pressure detection unit is in communication connection with the controller, the controller is configured to adjust the output of the frequency converter according to a pressure signal so as to control the rotating speed of the driving motor to maintain constant air supply pressure, and the driving motor is connected with the air compression unit through a transmission shaft. According to the portable pipe supply diving air supply equipment, the vortex pump is adopted as the air pump, compared with a piston pump, noise is reduced, efficiency is improved, compared with a stud pump, oil is not contained, cleanliness is high, air volume output is dynamically adjusted according to the breathing air volume requirement of a diver at the downstream output end, and safe and energy-saving constant-pressure breathing air output is achieved.

The invention belongs to the technical field of auxiliary equipment for UV gloss oil coating machines, and particularly relates to a UV gloss oil uncovering-free oil taking device for a coating machine. The oil drum opening device comprises a support, a feeding mechanism and a drum opening mechanism, the feeding mechanism and the drum opening mechanism are arranged at the top and the bottom of an oil supply position of the support respectively, the feeding mechanism moves an oil drum to the oil supply position, the drum opening mechanism comprises a drum breaking mechanism, an oil suction mechanism and a grabbing mechanism, and the grabbing mechanism grabs the upper edge of the oil drum at the oil supply position. The barrel opening mechanism comprises a barrel breaking cutter, a mounting plate and a lifting air cylinder, the barrel breaking cutter is fixedly connected to the middle of the mounting plate, the barrel breaking cutter is cylindrical, a wedge-shaped cutting edge is arranged at the bottom end of the barrel breaking cutter, and the oil inlet end of the oil suction mechanism penetrates through the middle of the barrel breaking cutter; the movable end of the lifting air cylinder is connected with the top of the mounting plate, and the fixed end of the lifting air cylinder is connected with the support. The convenience of taking oil from the packaging barrel can be effectively improved, and waste is reduced.

This utility model discloses an atomizing device and atomizing equipment with air exchange and no oil leakage. The atomizing device with air exchange and no oil leakage includes: a chamber body with an open lower end; a mounting component installed at the lower end of the chamber body to enclose and form an oil storage chamber, the mounting component forming a mounting chamber and an oil inlet channel connecting the mounting chamber and the oil storage chamber; a ceramic atomizing core installed in the mounting chamber, the upper side of the ceramic atomizing core communicating with the oil inlet channel, and the lower side enclosing the mounting component to form an atomizing chamber; wherein, the side wall of the oil inlet channel is provided with an air exchange port, the width of the air exchange port being 0.1-0.3 mm and the cross-sectional area being 0.01-0.09 mm². 2 The mounting components and the inner wall of the chamber form a ventilation channel with at least one bend. Both ends of the ventilation channel connect to the ventilation port and the atomizing chamber, respectively. This technical solution allows the gas in the atomizing chamber to replenish the upper side of the ceramic atomizing core, achieving pressure balance between the upper and lower sides of the ceramic atomizing core. This ensures that the oil can continue to enter the ceramic atomizing core normally, preventing clogging.

The invention relates to the field of nuclear power plants, and discloses a nuclear power plant wastewater collection system and method, which can optimize the design of the nuclear power plant wastewater collection system and reduce the configuration and arrangement space of system equipment so as to save project investment and project cost. The system comprises a conventional island waste liquid collecting system and a waste oil and non-radioactive water discharging system. The conventional island waste liquid collecting system comprises a single first water collecting pit, the first water collecting pit is configured to contain radioactive oil-free waste water, and the rear end of the water collecting pit is connected to the conventional island liquid effluent discharging system through a pipeline. The conventional island liquid effluent discharge system is configured to perform radioactive substance attenuation treatment on radioactive oil-free wastewater. The waste oil and non-radioactive water discharging system comprises a single second water collecting pit, the front end of the second water collecting pit is connected to a plurality of water feeding pump sets, a sealing oil system and a lubricating oil storage room through pipelines, the second water collecting pit is configured to contain non-radioactive oily wastewater, and the rear end of the second water collecting pit is connected to a nuclear island dirty oil treatment system through a pipeline; and the nuclear island sump oil treatment system is configured to treat oily wastewater without radioactivity.

The present application belongs to the field of oil-free scroll compressor, and particularly relates to an electromagnetic controllable anti-self-rotation mechanism of an oil-free scroll compressor. The present application comprises a bracket in the shape of a groove, characterized in that: a movable scroll is arranged above the bracket, and a bearing blind hole is arranged on the bottom surface of the movable scroll; a bracket hole is arranged on the bracket at a position corresponding to the bearing blind hole in the middle, a plurality of electromagnet seats are arranged around the bracket hole, and a plurality of eddy current sensor seats are also arranged around the bracket hole; one electromagnet body is arranged on each electromagnet seat; one eddy current sensor body is arranged on each eddy current sensor seat; a groove is arranged below the movable scroll, and an armature is fixed in the groove; the electromagnet body, the eddy current sensor body and the armature are arranged in position cooperation. The present application can output clean high-pressure gas without oil.

The application discloses an oil circuit structure of an oil-cooled motor rotor, which comprises a shell, a bushing, a rotor core, a first balance plate, a second balance plate, a stator assembly and a rotor shaft. The rotor core, the bushing, the first balance plate and the second balance plate are all sleeved on the rotor shaft, the stator assembly is sleeved on the outer side of the rotor core, the end, away from the rotor shaft, of the bushing is abutted against the shell, the bushing is internally provided with an annular oil distribution groove and a radial oil hole, a plurality of bent oil channels are arranged on the rotor shaft and are in communication with the annular oil distribution groove and the radial oil hole, a plurality of axial oil channels are arranged in the rotor core and are in communication with axial oil outlet holes, and the first balance plate is further provided with an inclined oil outlet hole in communication with the axial oil channels. The oil circuit structure makes the cooling oil free from the dependence on centrifugal force, realizes efficient cooling of the rotor core under all working conditions, is convenient to produce and process, and solves the difficulty of the limitation of the arrangement of the oil inlet on the shaft end in some structures by adopting the radial oil inlet mode of the non-end part.

The invention provides a simulated formation condition tight oil production efficiency nuclear magnetic detection and quantitative characterization method, and belongs to the technical field of oil exploration and development, the method comprises the following steps: S1, respectively measuring nuclear magnetic resonance T2 spectrums of a core sample in a dry state, a water-containing and oil-free state and an oil-containing state; obtaining the oil saturation of the core sample by contrasting the change characteristics of the nuclear magnetic T2 spectrums and the change of the semaphore; and S2, respectively measuring the permeability and porosity of the core sample in a dry state, establishing a quantitative characterization model of the fluid utilization efficiency, and calculating the fluid utilization efficiency. According to the method, the calculation problem of the tight oil production efficiency under the influence of multiple factors is solved by researching the influence of pore pressure, oil saturation and reservoir physical properties on the tight oil production efficiency.

This invention relates to the field of water conservancy engineering technology, specifically to a drainage system and method for a hydropower station. The drainage system includes a drainage pool, an upper partition, a lower partition, a lifting mechanism, a mounting frame, a rotating mechanism, multiple oil suction mechanisms, and an oil squeezing mechanism. The drainage pool is divided into a first chamber, a second chamber, and a third chamber by the upper and lower partitions. Clean water is injected into the first chamber until the liquid levels in the first and second chambers are level with the top of the lower partition. Oily wastewater is continuously injected into the first chamber, where floating oil is trapped, and oil-free water is discharged normally from the third chamber. After a period of time, the lifting mechanism moves multiple oil suction mechanisms down to the water surface to absorb oil, and then the rotating mechanism moves the multiple oil suction mechanisms to the upper oil squeezing mechanism to squeeze out the oil absorbed by the multiple oil suction mechanisms and collect it for discharge. This allows for the treatment of oily wastewater, separation of oil, and prevention of pollution to the downstream water environment.

The application relates to the technical field of petroleum engineering, and discloses an oil-free drag-reducing agent and application thereof, the oil-free drag-reducing agent comprising: ionic polyacrylamide, a polyether polyol compound, a suspending agent and an optional stabilizer; the weight ratio of the ionic polyacrylamide to the polyether polyol compound is 1:0.5-10; the weight average molecular weight of the ionic polyacrylamide is 5 million-30 million, and the average polymerization degree of the polyether polyol compound is less than or equal to 1000.The oil-free drag-reducing agent has excellent stability and will not settle for at least 9 months; the oil-free drag-reducing agent has good solubility, high solid content, good fluidity, can resist high salinity, and enriches the use scenarios of the oil-free drag-reducing agent; the oil-free drag-reducing agent does not contain an oil phase, is harmless to the formation environment, and simultaneously reduces the cost.

The application discloses a method and system for measuring the oil quantity of an irregular fuel tank of a ship, and belongs to the technical field of ship fuel management. The ship comprises a fuel main pipe, a ballast pipe, a seawater pump, a fuel injection pipe and a fuel tank. The method comprises the following steps: emptying the fuel in the fuel main pipe; starting the seawater pump to inject water into the fuel main pipe, and the water flows into an external storage tank through the fuel main pipe, the fuel tank and the ballast pipe in sequence, and the injection of water is stopped until the water in the external storage tank contains no oil; adding fuel into the fuel tank through the fuel injection pipe, and the fuel pushes the water in the tank to flow into the external storage tank through the ballast pipe, and the addition of fuel is stopped until the liquid flowing into the external storage tank through the ballast pipe becomes an oil-water mixture, and the reading of a flowmeter at this time is recorded; and the oil quantity is determined based on the reading of the flowmeter and the difference between the volume of the fuel main pipe and the ballast pipe. The method and system provided by the application can improve the measurement accuracy and reduce waste.

The utility model belongs to the technical field of cable production, and particularly discloses an outdoor lubricating oil cooling pond for cable production, which comprises a cooling pond, a vertical overflow plate is arranged in the cooling pond and divides the cooling pond into a settlement area and a heat exchange area, the bottom of the settlement area is fixedly connected with an inclined block, one side of the bottom of the settlement area is provided with a drain outlet, and the drain outlet is communicated with the heat exchange area. A heat exchange pipe set is arranged in the heat exchange area, a turbine is arranged on the lower side of the interior of the heat exchange area, a first motor is fixedly connected to the lower side of the exterior of the heat exchange area, the output end of the first motor penetrates and extends into the heat exchange area and is fixedly connected with a rotating shaft of the turbine, and a lubricating oil outlet is fixedly connected to the lower side of the heat exchange area. And the hot oil inlet, the waste oil discharge outlet and the lubricating oil outlet are respectively provided with a valve. The overflow plate is arranged, hot oil without aluminum powder on the upper layer flows into the heat exchange area from the position above the overflow plate, separation of the aluminum powder in lubricating oil is achieved, and the situation that the aluminum powder enters a lubricating oil conveying pipeline again and deposits to block the pipeline is prevented.

A centrifugal fan and a refrigeration type range hood provided with the centrifugal fan, the centrifugal fan comprising a volute and an impeller, the volute having an outer ring wall and an inner ring wall, an air interlayer being formed between the outer ring wall and the inner ring wall, the outer ring wall being closedly connected with the inner ring wall, an air interlayer air inlet being formed between the outer ring wall open end and the inner ring wall, a ventilation opening being formed in the inner ring wall, the ventilation opening forming an air interlayer air outlet, the air interlayer being communicated with an internal air duct of the volute through the ventilation opening, and the heat dissipation fan air outlet being communicated with the air interlayer air inlet. The heat dissipation fan air outlet of the refrigeration type range hood is communicated with the air interlayer air inlet, and the air of the heat dissipation fan does not contain oil fume, so that the air outlet of the heat dissipation fan passes through most of the inner ring wall of the oil fume suction fan, and the air of the oil fume suction fan does not pass through the inner side of the inner ring wall and the outer ring wall of the oil fume suction fan, so that the inner side of the inner ring wall and the outer ring wall is not polluted by oil fume, thereby solving the problem that oil fume adhered to the inner surface of the volute is difficult to clean.