45results about How to "Liquid flow is stable" patented technology

The invention belongs to the technical field of corrosion and prevention, and in particular relates to a casting method of an aluminum alloy sacrificial anode. The casting method comprises the following steps: adding basic electrolytic molten aluminum to a resistance furnace; then adding a zinc ingot to obtain molten aluminum alloy; performing jet refining on the molten aluminum alloy by adopting an argon located refining agent; charging argon to refined aluminum alloy melt to degas; drossing oxidizing scum on the surface of the aluminum alloy melt through a drossing tool; adding a low melting point metallic element to drossed aluminum alloy melt; electromagnetically agitating the melt after pressing the low melting point metal; carrying out ceramic filtering; pouring and casting the aluminum alloy melt to a preheated iron anode mould at an even casting speed under the temperature of 700 to 740 DEG C until the mould is full of the aluminum alloy melt; and moving the aluminum alloy melt out of the mould after cooling, solidifying and molding, so as to obtain the aluminum alloy sacrificial anode. The casting method has the characteristics of being short in smelting time, small in loss of iron scale, high in degassing and purifying performances, and low in smelting cost.

The invention discloses an LNG immersed pump and belongs to the technical field of LNG. A stator and a rotor shaft are arranged in a motor cavity in the LNG immersed pump, and side wall channels are arranged in the side wall of a pump body; a motor upper cover is connected to the rear end of the pump body and provided with a plurality of liquid flowing channels communicated with the side wall channels, and the liquid flowing channels are arranged in an inclined mode and intersect with one another at a liquid outlet; a motor lower cover is connected to the front end of the pump body, liquid via holes communicated with the side wall channels are formed in the motor lower cover, a shell is connected to the motor lower cover to form a working cavity and provided with a first-stage flow guide disc to partition the working cavity into a front cavity and a rear cavity, a flow channel communicated with the front cavity and the rear cavity is arranged on the first-stage flow guide disc, a second-stage impeller is arranged in the rear cavity, a first impeller is arranged in the front cavity, a liquid inlet is formed in the front cavity in a connected mode, and an inducer is arranged in the liquid inlet; the rotor shaft penetrates through the motor lower cover and the working cavity and extends into the liquid inlet, and the first-stage impeller, the second-stage impeller and the inducer are all arranged on the rotor shaft in a sleeved mode. The LNG immersed pump is simple in structure and suitable for being popularized and used.

The invention relates to an up flow type anaerobic reactor, which comprises a barrel of the reactor, a water distributor pipe arranged on the lower end of the barrel, a three phase separator composed of a cone diversion drum arranged on the upper end of the barrel and a gas hood arranged on the upper end of the cone diversion drum, a circular passage arranged between the lower end of the gas hood wall and cone diversion drum wall, a circular passage arranged between the cone diversion drum and the upper wall of the barrel, a settling zone barrel arranged on the upper end of the reactor barrel, a drain trough arranged on top of the settling zone barrel, the combination of two circular passages can separate sludge with water, gas with water at different position, has good separating effect of gas, sludge, water, thereby avoiding the problem of return-sludge flow interfered by inlet flow because of mixed liquor ascent passage sharing one passage with return-sludge flow in a conventional three phase separator, the invention can keep liquid flow in settling zone steady, fluid state closing to laminar flow, has good solid-liquid separation effect.

The invention relates to a three phase separator of an up flow type anaerobic reactor, which is composed of a cone diversion drum arranged on the upper end of a anaerobic reactor barrel, a gas hood arranged on the upper end of the cone diversion drum, a gas chamber is composed of the gas hood and a wide mouth of the cone diversion drum, a circular passage arranged between the lower end of the gas hood wall and the upper end of the cone diversion drum wall, a circular passage arranged between the lower end of the cone diversion drum wall and the upper wall of the anaerobic reactor barrel, a gas chamber with bigger volume and a bigger gas liquid separation interface is composed of a circular wide mouth on upper of the cone diversion drum and a cylinder gas hood, can reduce release rate of biogas and aqueous vapour entraining amount discharged from the reactor barrel, adopting the invention, gas in mixture liquor of gas, sludge and water can not enter into the settling zone barrel, gas can be separated and removed effectively to avoid gas leaking to the settling zone barrel to interfere solid-liquid separation effect.

The embodiment of the invention discloses an impurity test bed, comprising a test water tank, a stirrer and a circulatory system, wherein the stirrer is arranged at the bottom of the test water tank; the circulatory system is communicated with the test water tank; the test water tank is used for containing liquid containing impurities and allowing a device to be tested to be soaked in the liquid containing impurities; the stirrer is used for stirring the liquid containing impurities which is contained in the test water tank to keep the liquid to be turbid; and the circulatory system is used for driving the liquid in the test water tank to pass the device to be tested continuously. The impurity test bed disclosed in the embodiment of the invention has stable performance, smaller fluctuation of test situations and high measurement accuracy, thus being suitable for serving as nuclear power equipment.

The invention discloses a preparing method of solar battery packing glass, which comprises the following steps: choosing raw material; processing; disposing; allocating raw material; mixing; adding into furnace; melting; modeling and annealing; controlling content of quartz sand middle iron at 0-25ppm; setting height of weir at 715-780mm; forming 45degree cut angle of corundum brick in the flower curtain wall and wall broad centre line; assembling feeler unit connecting with controlling system in the furnace; making light transmittance ratio of glass higher than 92%. It possess merits of high white content, high fineness, high strength and long durability, which can satisfied needs of solar battery packing glass.

The invention relates to a liquid control system for double-fluid injection, which comprises a liquid source device, a liquid control device, a return suction device and a double-fluid injector, wherein the liquid source device, the liquid control device, the double-fluid injector and the return suction device are connected by hoses in turn, and liquid supply and recovery of the double-fluid injector are realized. In a liquid source device, a hydraulic pump is adopted to convey liquid to the system, and a peristaltic pump is used to reduce impulse. In the liquid control device, a liquid electromagnetic valve is adopted to supply continuous or impulse liquid flow to downstream equipment, a liquid one-way valve is arranged in the path of liquid before entering a mixing chamber to prevent liquid backflow caused by overhigh pressure in the mixing chamber, a return suction opening is formed on the other side of the mixing chamber, and a micro air pump is used to suck liquid before the system stops working to avoid trailing, wire drawing and other phenomena. The system can be used in ink injection, glue injection and welding processes and other processes, particularly a double-fluid injection spot gluing process.

The invention relates to a three-inlet spiral slag pushing type hydraulic cyclone, which comprises a settlement pot, an anti-backflow device, an inlet, an inlet pipe, a cover plate, an overflow pipe, a cylindrical body, a cone, an underflow pipe, a valve and a spiral slag pusher. The inlet design of the hydraulic cyclone is a three-inlet structure, the inlet employs three narrow and long gradually changed rectangular inlet pipes with three same cross section shapes, three inlets are symmetrically arranged with an angle presenting 120 DEC, the long edge of the rectangle is parallel to axis of the hydraulic cyclone, wherein one long edge is tangent with the inner surface of the cylindrical body, separation efficiency can be improved by the structure; the settlement pot is connected at the underflow port, the anti-backflow device is added in the settlement pot for preventing phenomenon of liquid leakage; a cylindrical hopper is connected at the lower part of the settlement pot, a spiral is arranged in the cylindrical hopper, and a speed regulation motor is used for uninterruptedly rotating the spiral for discharging solid slag though a spiral shaft outside the cylindrical hopper. According to the invention, slag deposited at the underflow port can be discharged in an automatic, stable and adjustable mode.

The invention discloses a domestic sewage filter device, which comprises two parts of a separation device and a filtering device; the separation device is a cylinder, an upper side face of the cylinder is provided with a water inlet, a support column is arranged in the middle of the cylinder, the support column is provided with movable separation disintegrators, a lower side face of the cylinder is provided with a water outlet; the filtering device is a cylinder, the lower side face of the cylinder is provided with a water inlet, the water inlet of the cylinder of the filtering device is connected with the water outlet of the cylinder of the separation device, an upper side face of the cylinder of the separation device is provided with a water outlet, multi layers of filter materials are arranged from bottom to top in the cylinder of the separation device, the lower filter material is arranged on a filter plate, the filter plate is supported by a column or other substances, and an exhaust pipe is arranged in the middle of the filter materials. The domestic sewage filter device adopts the technical scheme, compared with the prior art, the domestic sewage filter device has the advantages of full sewage degradation, fast purification, simple structure, and up-to-standard sewage discharge.

The invention relates to the technical field of pumps, in particular to a novel flavoring feeding pump. The novel flavoring feeding pump comprises a pump body, a base, a joint drive, internal parts and the like. According to the novel flavoring feeding pump, a design structure is innovated; the processing technology is improved; metal and non-metal combination materials are reasonably selected; and therefore the shortage of the traditional technology is overcome. It is ensured that the pump can meet working conditions with high temperature, high pressure and various kinds of viscosity, and flavoring feeding chemical media and various harsh chemical media can be efficiently conveyed. A short shaft of a self-centering structure and the magnetic or mechanical sealing mode are adopted to enable the pump to be connected with the drive of a motor; the zero-leakage non-pulse aim is truly achieved; the problem that a traditional pump is prone to leaking is solved; radial loads caused by non centering are omitted; the overload protection effect is achieved; and application of cut tobacco mixing flavoring, cut stem flavoring, cut stem feeding, leaf feeding, cut leaf feeding and moisture regaining of the tobacco industry and application of conveying, metering, circulating, injecting, lifting and the like of flavoring feeding of industries such as food, pharmacy and chemical engineering can be met.

The invention relates to the technical field of drip irrigation, in particular to a pressure compensation type emitter. The pressure compensation type emitter comprises an emitter base with a water inlet hole and an emitter upper cover with a water outlet hole; the upper side of the emitter base is provided with an accommodating cavity; the emitter upper cover is arranged in the accommodating cavity; a clamping groove is formed in the accommodating cavity; a rubber sheet is arranged in the clamping groove; the rubber sheet is positioned between the emitter base and the emitter upper cover; liquid enters the inside of the pressure compensation type emitter through the water inlet hole; the rubber sheet is positioned between the emitter base and the emitter upper cover and the rubber sheet separates the emitter base from the emitter upper cover, and thus, when the liquid enters the inside of the pressure compensation type emitter, the liquid pressure acts on the rubber sheet, the rubber sheet squeezes the emitter upper cover with the water outlet hole and the water passing sectional area is changed, so that flow of the liquid passing through the water outlet hole is enabled to be stabilized in a regulated range. Therefore, the pressure compensation type emitter can be applied to products such as an emitter.

The invention provides a liquid breaking unit and an air treatment device comprising the same. The liquid breaking unit comprises a water storage part, wherein a liquid storage space is formed by a bottom surface of the water storage part and side surfaces of the water storage part; a breaking part which comprises a water suction pipe, wherein the lower end of the water suction pipe is inserted into the liquid in the liquid storage space, and the water suction pipe sucks the liquid through rotation and micronizes the liquid; and a driving part which is connected with the breaking part and drives the water suction pipe to rotate, wherein a water retaining part which is separated from the water suction pipe is arranged near the lower end of the water suction pipe in a sleeving manner, and the water retaining part comprises a water retaining surface which is formed into a closed surface facing the water suction pipe and surrounding the water suction pipe, and water retaining ribs protruding from the water retaining surface to the water suction pipe and inclind downwards in the rotating direction of the water suction pipe. According to the liquid breaking unit, the stable humidification amount can be guaranteed, and noise caused by the unstable rotating speed of the motor can be reduced.

The invention discloses a drilling pump with a T-type pump head, and the drilling pump with the T-type pump head is substantially formed by a shell body (1), a discharge liquor cylinder (2) arranged on the shell body (1), a discharging pipe (12) connected and communicated with the discharge liquor cylinder (2), a liquid suction cylinder (3) connected and communicated with the discharge liquor cylinder (2), and a suction pipe (4) connected and communicated with the liquid suction cylinder (3). A piston device communicated with the discharge liquor cylinder (2) is arranged inside the shell body (1). The drilling pump with the T-type pump head is in a compact structure and cancels a suction chamber, the volume and the quality of the drilling pump with the T-type pump head are reduced by 25% - 30%. The drilling pump with the T-type pump head is easy to process and manufacture, convenient to flaw detect and inspect, and can ensure the quality of the pump head products. Slurry is sucked in a horizontal mode, the clearance volume in the pump head cylinder is small, the suction efficiency and the volumetric efficiency of the drilling pump are improved; liquid flow is smooth, the pressure fluctuation and vibration is reduced, and the drilling pump impact load is also reduced. The change of a suction valve is very convenient and time-saving, and the workload of dismounting and changing is little.

The invention relates to a crystallizing tank, which is specially used for producing a cephalosporin sodium raw material drug. The crystallizing tank comprises a conical shell and the shell is internally provided with an agitating shaft; the crystallizing tank is characterized in that an impeller type agitating paddle is arranged at the lower part of the agitating shaft; and the impeller type agitating paddle is arranged at a conical shell part of the shell; and the agitating shaft is further provided with a plurality of anchor-shaped agitating paddles. The crystallizing tank disclosed by the invention has the advantages of stable liquid flow, no turbulent flow, no dead angles and good crystallizing effect.