39results about How to "Enhanced turbulence" patented technology

The invention relates to a cooling device for lean absorption liquid in an ethylene oxide production system, the cooling device comprises a shell, a liquid inlet box, a liquid outlet box, a tube plate, a heat exchange tube, a refrigerant inlet tube and a refrigerant outlet tube, the end, close to the liquid inlet box, of the heat exchange tube is provided with a turbulent flow structure, the turbulent flow structure comprises a guide ring, and the guide ring is fixedly arranged on the inner wall of the heat exchange tube; the diameter of the guide ring is gradually reduced in the flowing direction of the lean absorption liquid, a plurality of groups of turbulent flow holes are formed in the circumferential wall of the guide ring and are arranged in the circumferential direction of the circumferential wall of the guide ring, each group of turbulent flow holes comprises first turbulent flow holes and second turbulent flow holes, and the first turbulent flow holes and the second turbulent flow holes are formed at intervals; the axis of the first turbulent flow hole and the axis of the second turbulent flow hole intersect, and the intersection point is located between the outer wall of the guide ring and the inner wall of the heat exchange pipe. The method has the advantages that a better heat exchange effect is achieved, so that the problem of poor absorption liquid is solved, and the ethylene oxide absorption capacity of the poor absorption liquid is improved.

The invention relates to the technical field of stirring devices and particularly to a hydraulic stirring device. The stirring device comprises a supporting column and a cylinder arranged on the supporting column. The upper end of the cylinder is provided with a feeder, and the lower end of the cylinder is provided with a discharging pipe; a stirring spray head I is arranged on the inner wall at the upper part of the cylinder, and a nozzle of the stirring spray head I is arranged to be tilted downwardly at an angle of 6 to 10 degrees; a stirring spray head II is arranged on the inner wall at the lower part of the cylinder, and a nozzle of the stirring spray head II is arranged to be tilted upwardly at an angle of 6 to 10 degrees; the stirring spray head I and the stirring spray head II are arranged at opposite directions; and an inert stirring wheel is provided at a central position at the lower part in the cylinder. According to the invention, the device does not need to be driven by an electrical machine or a motor, and the technical problems of a high fault rate, troublesome operation, poor stirring effects and the like in the prior art are effectively overcome.

The invention discloses an ultrafiltration membrane assembly integrating catalytic oxidation and carrying a catalyst, and belongs to the field of water pollution treatment equipment. The ultrafiltration membrane assembly comprises a shell composed of an upper sealing cover, a barrel and a lower sealing cover. A hollow fiber ultrafiltration membrane carrying the catalyst and an ultraviolet lamp are fixedly installed in the barrel through an upper tube plate and a lower tube plate. An ultrafiltration water inlet tube, an air inlet scrubbing tube and an ozone adding tube are arranged on the lower sealing cover. Water flow can be pushed to move from bottom to top, the hollow fiber ultrafiltration membrane is made in a shaking state, the catalyst carried on the ultrafiltration membrane is evenly irradiated by ultraviolet light easily, the mass transfer effect between the ultrafiltration membrane carrying the catalyst and ozone and pollutants is enhanced, and therefore the catalytic oxidation effect is enhanced. The ultrafiltration membrane assembly integrates the functions of intercepting suspended solids and colloid, degrading organic pollutants, killing bacteria and the like and provides reliable guarantees for recycling of sewage or nanofiltration and reverse osmosis pretreatment of sewage.

The invention discloses an ultrafiltration membrane reclaimed water treatment device integrating catalytic oxidation and a supported catalyst and belongs to the field of water pollution treatment equipment. The reclaimed water treatment device comprises a closed tank and an ultrafiltration membrane assembly arranged in the tank. An ultrafiltration membrane of the supported catalyst in the ultrafiltration membrane assembly is spaced with an ultraviolet lamp. An aerator and an ozone releaser are distributed below the ultrafiltration membrane, water flow can be pushed to move from bottom to top, the dual functions of water flow and bubbles rich in ozone can promote the jitter state of the hollow fiber ultrafiltration membrane, the catalyst supported on the ultrafiltration membrane can be evenly irradiated easily through ultraviolet, the mass transfer function among the ultrafiltration membrane of the supported catalyst, ozone and pollutants can be enhanced, and the effect of catalytic oxidation is improved. The water treatment device integrates the functions of suspended matter and colloid interception, organic pollutant decomposition, sterilization and the like, and a reliable guarantee is provided for resource regenerative utilization of sewage or preprocessing of nanofiltration and reverse osmosis.

A single tank cleaning machine, comprising a cleaning tank (1), a cleaning base (2), and a lifting filter device (3), wherein: the cleaning tank (1) is equipped with a cleaning solution (4), and the cleaning tank (1) An ultrasonic transducer (5) is installed at the bottom, and a roller (6) is installed at the bottom of the cleaning tank (1). The ultrasonic transducer (5) is externally connected to an ultrasonic power supply. While filtering the cleaning liquid, it also realizes the automatic rising of the workpiece to be cleaned, which greatly improves the service life of the cleaning liquid and greatly reduces labor costs and labor intensity.

The invention discloses a little oil burner of a double-sided ignition combination blunt body. A primary air pipeline is communicated with a secondary coal dust combustion chamber through a section of coal dust concentrator formed by a tapered pipeline with a throat part formed through invagination, a primary coal dust combustion chamber is arranged in the secondary coal dust combustion chamber, and the secondary coal dust combustion chamber extends into a tertiary coal dust combustion chamber. The upper side surface and the lower side surface of the tertiary coal dust combustion chamber connected with the secondary coal dust combustion chamber are provided with a plurality of secondary air inlets in equal intervals, an upper oil combustion chamber and a lower oil combustion chamber are arranged on the primary coal dust combustion chamber after aslant penetrating through the secondary coal dust combustion chamber, a combination blunt body is arranged at the port of the secondary coal dust combustion chamber, and a plurality of through-flow holes are arranged on the upper surface and the lower surface of the second coal dust combustion chamber positioned in the tertiary coal dust combustion chamber. By adopting the top and bottom arrangement of two oil guns, coal dust entering into the primary coal dust combustion chamber are ignited in a double side way, which strengthens turbulent mass and heat exchange of coal dust current and oil flame to rapidly heat the coal dust and form a fire curtain, thereby prolonging the residence time of the coal dust and strengthening the ignition process.

The invention relates to the technical field of power machinery, in particular to a centrifugal draught fan impeller. The impeller comprises a front disc, a rear disc and multiple blades, the blades are arranged in the impeller in the circumferential direction of the impeller at intervals, the upper and lower end faces of the blades are fixedly connected with the front disc and the rear disc respectively, each blade is provided with a blade pressure face and a blade suction face, each blade is divided into a forward blade and a backward blade in the length direction of the blade, wherein two thirds of section from an air inlet to the blades is a forward blade profile, and the back one third of section is a backward blade profile. The blades in the impeller not only combines the disadvantages of the forward blade profile and backward blade profile, but also is equidistantly provided with V-shaped groove structure on a pressure surface of the backward blade. The centrifugal draught fan impeller has the advantages that surface load of the blades in the impeller are uniformly distributed, the unbalanced vibration is reduced, the turbulent state of the gas of boundary layers of the blades is increased, and the probability and energy of particles hitting the surfaces of the blades are reduced, thereby playing roles in vibration attenuation and erosion resistance.

The invention belongs to the technical field of methanol production, specifically a methanol production method and its production equipment. The steps of the methanol production method are as follows: S1: raw material preparation: firstly, coke oven gas and coal-based synthesis gas are mixed to form Mixed gas; S2: raw material purification: pass the mixed gas into the filter to filter out impurities such as oil and dust carried by the mixed gas, and then compress the mixed gas through the first heat exchanger for heat exchange and temperature increase; the invention provides a A methanol production method and its production equipment to solve the problem of inorganic sulfur and organic sulfur in the mixed gas. Generally, the mixed gas is directly passed into the fine stripping tower for desulfurization, but the fine stripping tower is used to decompose and desulfurize the organic sulfur. Not only is the desulfurization effect on inorganic sulfur poor, but the presence of inorganic sulfur also easily affects the decomposition and removal of organic sulfur.