12results about How to "Reduce outlet pressure" patented technology

The invention relates to the field of mechanical equipment, in particular to a pipeline direct connection type air suspension turbine vacuum pump which comprises a shell, the shell is through in the front-back direction, a motor is installed in the shell and comprises a motor sleeve, a motor stator is installed in the motor sleeve, a motor rotor is rotatably installed in the motor stator, and an impeller is installed on the motor rotor. A radial air bearing used for supporting a motor rotor to rotate is installed in the shell, the motor sleeve and the shell are mutually spaced, a spaced cavity of the motor sleeve and the shell forms a main channel for airflow to pass through, the motor sleeve is through front and back, an inner cavity of the motor sleeve forms an auxiliary channel for airflow to pass through, and a sealing cover plate is installed on the front side of the motor sleeve. The impeller is located in front of the sealing cover plate, the sealing cover plate seals the opening in the front side of the motor sleeve, and a plurality of flow dividing holes are formed in the sealing cover plate and penetrate through the sealing cover plate. A double-channel structure is arranged in the vacuum pump, air inlet drainage can be directly used for cooling a main machine, and meanwhile the air outlet pressure of a single-channel structure is relieved.

The invention relates to a liquid pressurizing and cold returning type natural gas liquefying device which is characterized in that pure liquid nitrogen, coarse liquefied natural gas or dirty liquid nitrogen generated by a rectifying tower in the natural gas liquefying device enters a main heat exchanger or a cold returning device after being pressurized by a hydraulic pump, and gas generated after heat absorption and gasification in the main heat exchanger or the cold returning device enters a high-pressure expansion machine to do work through expansion; exhaust gas of the high-pressure expansion machine enters the rectifying tower to provide cooling capacity needed by natural gas liquefaction, liquefied natural gas generated by the rectifying tower serves as a product to be output, and nitrogen discharged from the rectifying tower achieves closed-loop circulation through the circulating compressor. The purposes of energy conservation and consumption reduction of the natural gas liquefaction device are achieved through the processes of primary pressurization of the gas compressor, secondary pressurization of the hydraulic pump, cold returning, gasification and expansion.

The present invention provides a method for debugging and operating a circulating water system and a circulating water system thereof. The method for debugging and operating a circulating water system comprises the following steps: arranging a regulating component in a siphon well in a telescopic manner; increasing the height of the regulating component to reduce the siphon effect of the siphon well, or reducing the height of the regulating component to increase the siphon effect of the siphon well; a circulating water pump, a condenser, and a siphon well are sequentially connected and together constitute a circulating water system; when the tide level of seawater is the average tide level, the first height of the regulating component is used as the regulating zero point; when the tide level of seawater is greater than the average tide level, the height of the regulating component is reduced to reduce the outlet pressure of the circulating water pump; when the tide level of seawater is less than the average tide level, the height of the regulating component is increased to increase the outlet pressure of the circulating water pump. A technical effect of the present invention is that the tidal level change of seawater can be effectively utilized to put the circulating water pump in the best operating condition, thereby better reducing energy consumption.

The utility model discloses a tubular microporous aeration membrane mounting structure, which comprises an aeration membrane tube and an aeration membrane, and is characterized in that one end of the aeration membrane tube is an air inlet end, and the other end of the aeration membrane tube is provided with a tube plug for plugging the aeration membrane tube; the aeration membrane is arranged outside the aeration membrane tube in a sleeving manner; the aeration membrane is sleeved with a plurality of pipe hoops, the pipe hoops are sequentially arranged at intervals in the length direction of the aeration membrane pipe, and two pipe hoops are located at the two ends of the aeration membrane respectively; the aeration membrane and the aeration membrane pipe are correspondingly divided into a plurality of sections along the length direction of the aeration membrane pipe by the plurality of pipe hoops, and the aeration membrane pipe and the aeration membrane between two adjacent pipe hoops jointly form a small aeration membrane chamber; a plurality of air outlet holes are formed in the side wall of the corresponding aeration membrane pipe in each small aeration membrane chamber.

The invention relates to the technical field of low-grade heat utilization, in particular to an injection boosting two-stage organic Rankine cycle power generation system and method, and the system comprises a condenser, a working medium pump, a first evaporator, a first expansion machine, a first power generator, a supersonic vapor-liquid two-phase flow injector, a second evaporator, a second expansion machine and a second power generator. Two stages of organic Rankine cycles are coupled through the supersonic speed vapor-liquid two-phase flow ejector, dead steam at an outlet of the first expansion machine is ejected through a high-pressure liquid working medium, the pressure of the outlet of the first expansion machine can be reduced while part of working medium pump power consumption is saved, dead steam waste heat of the first expansion machine can be recycled, and the working medium pump power consumption is reduced. Therefore, the technical economy of the organic Rankine cycle power generation system is improved.

The utility model provides a constant pressure biogas digester, relates to the biogas digester technical field, include: main tank body, internal corrugation telescopic membrane body and upper support rod, the internal corrugation telescopic membrane body is fixed in the middle inside of main tank body, the upper support rod is provided in the upper part of internal corrugation telescopic membrane body, the upper part of internal corrugation telescopic membrane body is communicated and fixed with upper corrugation communicating pipe, and the lower part of internal corrugation telescopic membrane body is communicated and fixed with lower corrugation communicating pipe. An upper cover plate is fixed to the top of the inner corrugated telescopic film body and slidably arranged on the inner side of the upper portion of the main tank body, and the lower end of the inner corrugated telescopic film body communicates with the lower portion of the main tank body. The upper supporting spring pushes the inner corrugated telescopic film body and the upper cover plate to move downwards to increase the pressure of the biogas, the gas outlet pressure is increased when the amount of the biogas is small, the gas outlet pressure of the biogas tends to be constant, and the problem that when the amount of the biogas is small, the pressure of a gas outlet of the biogas is reduced due to reduction of the amount of the biogas is solved. And the use of biogas is not stable enough.

The utility model discloses a plasma operation electrode and plasma operation equipment capable of preventing discharged liquid from being jetted. The plasma operation electrode comprises a handle, the cutter bar is connected with the handle, and a liquid injection channel is formed in the cutter bar; the tool bit is fixedly connected to the end, away from the handle, of the tool bar, the liquid injection channel extends into the tool bit, a liquid outlet hole communicated with the liquid injection channel is formed in the tool bit, and the tool bit is provided with a working face deviating from the tool bar; the flow slowing part is arranged in the liquid injection channel in a supported mode and is close to the liquid outlet hole, and liquid in the liquid injection channel flows slowly through the flow slowing part, then flows out of the liquid outlet hole and flows to the working face along the outer wall of the tool bit. The utility model provides a plasma operation electrode capable of preventing discharged liquid from being jetted. The plasma operation electrode solves the problem that liquid in an existing liquid injection channel cannot accurately reach the working face of a tool bit.

The embodiment of the present application discloses an anti-surge system for a refrigeration station and a compressor unit, the anti-surge system comprising: a centrifugal compressor comprising a gas outlet; a first gas path for receiving a section of gas, the section of gas being compressed by the centrifugal compressor to form first compressed gas; a second gas path for receiving first supplementary gas, the first supplementary gas being mixed with the first compressed gas and compressed by the centrifugal compressor to form second compressed gas; a third gas path for receiving second supplementary gas, the second supplementary gas being mixed with the second compressed gas and compressed by the centrifugal compressor to form third compressed gas; an exhaust gas path connected to the gas outlet, the exhaust gas path being used for discharging the third compressed gas from the anti-surge system; and an anti-surge gas path selectively connected to the first gas path, the second gas path and the third gas path, the anti-surge gas path being used for feeding the first compressed gas into the first gas path, or feeding the second compressed gas into the second gas path, or feeding the third compressed gas into the third gas path.

The invention discloses a refrigerating and heating coupling system for ethyl acetate recovery, which relates to the technical field of heat pump energy conservation, is used for recovering ethyl acetate in the preparation process of lycopene oleoresin, and comprises a heat pump system (1), a refrigerating system (2), a solvent evaporator (5), a solvent condenser (6) and a heat exchanger (3), and a refrigeration evaporator (201) and a refrigeration condenser (202) are arranged in the refrigeration system. And the heat pump system and the refrigerating system are subjected to heat exchange, so that the effects of saving energy and reducing cost are achieved.

The utility model discloses a silage maize harvester throwing cylinder device capable of adjusting material flow dispersity, which comprises an adjustable discharging plate, a front discharging plate, a connecting assembly, an adjusting spring, a middle discharging plate, a rear discharging plate and a hydraulic cylinder, one end of the front discharging plate is hinged with the middle discharging plate, the other end of the middle discharging plate is hinged with the rear discharging plate, and the connecting assembly is connected with the hydraulic cylinder. One end of the hydraulic cylinder is installed on the rear discharging plate, the other end of the hydraulic cylinder is rotationally connected with the front face of the middle discharging plate, and the adjusting spring is connected with the rear discharging plate and the front discharging plate. According to the utility model, different discharge port angles are arranged, so that the material throwing device can adapt to material throwing operation at different distances, during long-distance operation, the discharge port angles are arranged and small openings are selected, and during short-distance operation, the discharge port angles are arranged and large openings are selected, so that the completeness of a material flow after being thrown away from the discharge plate is improved, and the position of a blanking point is convenient to determine; and the feed filling accuracy is improved.

This invention relates to the field of gas purification technology and discloses a low-energy desulfurization method: (1) acidic gas and foaming liquid are contacted in a microbubble generator to generate microbubbles, resulting in a gas-liquid mixture; wherein the foaming liquid includes ultrafine particles and complexed iron desulfurization liquid I, the particle size of which is 10-100 μm; (2) the mixture and complexed iron desulfurization liquid II are contacted counter-currently in an absorption tower to undergo an oxidation-reduction reaction, resulting in purified gas and desulfurized rich liquid; (3) the desulfurized rich liquid and air are oxidized and regenerated in an oxidation regeneration tank to obtain regenerated gas, regenerated lean liquid, and regenerated sulfur slurry; (4) the regenerated sulfur slurry is separated in a separator to obtain sulfur and filtrate; the regenerated lean liquid and / or filtrate are returned to the absorption tower for recycling. The low-energy desulfurization method provided in this invention can improve the bubble effect of the microbubble generator, reduce the impact energy consumption of the microbubble generator, improve the mass transfer efficiency of the absorption tower, and help reduce desulfurization energy consumption.

The invention discloses an energy-saving vortex type impeller for fluid machinery, and relates to the technical field of vortex type impellers. A hub is arranged in the rim, blades are fixedly connected with the outer side face of the hub, the sides, away from the hub, of the blades are slidably connected with the inner side face of the rim, a filtering assembly is arranged over the hub, a shell is fixedly connected to the outer side face of the filtering assembly, and the end, close to the hub, of the shell is rotationally connected with the top of the rim. The driving assembly is fixedly installed on the side, close to the shell, of the hub, the front-end suction assembly is fixedly installed outside the shell, and due to the arrangement of the front-end suction assembly, fluid can make rapid contact with the blades, so that the fluid is rapidly driven to rotate between the rim and the hub, fluid conveying is rapidly conducted, the idling time of the blades is shortened, and the energy-saving effect is achieved.