105 results about "Liquid-ring pump" patented technology

Methods and systems for chemical management. In one embodiment, a blender is coupled to a processing system and configured to supply an appropriate solution or solutions to the system. Solutions provided by the blender are then reclaimed from the system and subsequently reintroduced for reuse. The blender may be operated to control the concentrations of various constituents in the solution prior to the solution being reintroduced to the system for reuse. Some chemicals introduced to the system may be temperature controlled. A back end vacuum pump subsystem separates gases from liquids as part of a waste management system.

Methods and systems for chemical management. In one embodiment, a blender is coupled to a processing system and configured to supply an appropriate solution or solutions to the system. Solutions provided by the blender are then reclaimed from the system and subsequently reintroduced for reuse. The blender may be operated to control the concentrations of various constituents in the solution prior to the solution being reintroduced to the system for reuse. Some chemicals introduced to the system may be temperature controlled. A back end vacuum pump subsystem separates gases from liquids as part of a waste management system.

The invention relates to a device and a method for separating sucralose exhaust. A liquid ring pump compresses to 0.1MPa so as to enable an air flow to enter a solvent tower T101, and trichloroethane and DMF are concentrated at the bottom of the tower, and a recycling process is started; SO2, HCl and air are concentrated at the top of the tower; and a compressor compresses to 2.0MPa so as to enable discharged materials to enter a refining tower T102, the material exchange is conducted in the tower, HCl and air are concentrated at the top of the tower, the compressor compresses to 5.0MPa so as to enable HCl and air to enter a filling air cylinder, and SO2 is concentrated at the bottom of the tower and is introduced into an air cylinder through a filling mouth. The beneficial effects are as follows: most adopted equipment runs under a higher pressure state, and no reaction kettle is used; and the products are separated HCl and SO2 that are contained in vessels separate, and in the production of sucralose, a trace amount of trichloroethane and DMF solvent that are mixed can be concentrated and recycled exclusively.

A solvent recovery device in pharmacy which is mainly characterized in that a liquid ring pump is used for extracting the solvent steam which is separated from a gas-liquid separator, the liquid ring pump increases the pressure of the solvent steam, and then a condenser and the gas-liquid separator carries out the secondary condensation and the gas-liquid separation of the solvent steam after the pressure increases. A solvent recovery system for achieving the method is mainly characterized in that a steam exhaust port of the gas-liquid separator is connected with the liquid ring pump, an output of the liquid ring pump is sequentially connected with a secondary condenser and a secondary gas-liquid separator in series, a liquid discharge port of the secondary gas-liquid separator is connected with a working liquid input port of the liquid ring pump and a recovery tank, and the liquid ring pump takes the solvent as the working liquid. The solvent recovery device can not only increase the times of the condensation and the gas-liquid separation of the solvent stream, but can also increase the condensation pressure during the secondary condensation process, thus significantly increasing the solvent recovery rate, reducing the solvent loss and the production cost of the pharmaceutical industry and reducing the environmental pollution.

The invention discloses a DNAPL-polluted underground water in-situ remediation system and its application method, and belongs to the field of soil and underground water pollution control technology. The DNAPL-polluted underground water in-situ remediation system comprises a drilling well, a filter unit, a single-pump extraction unit and a water injection device. The filter unit comprises a concrete layer, a bentonite layer and a sand-filling layer, which are successively arranged inside the drilling well. The single-pump extraction unit comprises a liquid ring pump, an extraction pipe, a grid-type screen casing and a well casing. The water injection device comprises a water injection pipe, a gas vent and a water injection pump. One end of the water injection pipe is inserted into the well casing, and the other end of the water injection pipe is connected to the water injection pump on the ground and fixed on the upper end face of the well casing. The gas vent is arranged in the upper end face of the well casing. By the application method of the DNAPL-polluted underground water in-situ remediation system, the problem that extraction depth is limited, extraction position cannot be determined and extraction is not thorough in the prior art is solved. The system of the invention has advantages of wide range of application, high extraction efficiency and the like.

The invention relates to a vacuum system for vacuum melting. The vacuum system comprises a first-stage steam-jet pump (3), a second-stage steam-jet pump (4), a third-stage steam-jet pump (5), a fourth-stage steam-jet pump (7), a fifth-stage steam-jet pump (10), a first-stage condenser (6) and a second-stage condenser (9) which are connected in series with one another, and also comprises a third-stage condenser (12) and a liquid ring pump unit (13), wherein the liquid ring pump unit (13) and the fifth-stage steam-jet pump (10) are connected in parallel between the second-stage condenser (9) and the third-stage condenser (12); and the liquid ring pump unit (13) comprises a plurality of liquid ring pumps which are connected in parallel with one another. The vacuum system provided by the invention runs flexibly and saves energy; and a very practical solution is supplied to improvement of energy conservation and emission reduction of most full-steam-jet-pump vacuum systems in steel factories in China.

The invention relates to an RH refining furnace vacuum pumping system and a using method thereof. A steam pump group is combined with a liquid ring pump; the liquid ring pump and a fifth stage steam pump are arranged in a parallel mode; a waste gas treatment device is arranged in front of an air inlet of the liquid ring pump; a third stage condenser is connected with a steam and water separation device. According to the RH refining furnace vacuum pumping system and the using method thereof, the structure is simple, the dependence of the operation of an RH refining furnace on the steam can be reduced, and the molten steel treatment cost can be reduced; the gas pumped through the liquid ring pump can be purified due to the waste gas treatment device, the working environment is good, the stability is high, the working efficiency can be improved, and the service life can be extended; the system exhaust efficiency is high due to the steam and water separation device and accordingly the working efficiency of the RH refining furnace vacuum pumping system can be further improved.

Embodiments of the present invention are directed toward systems and methods of transferring fluid using devices that have a rotatable housing. One embodiment of the invention attaches a fluid-drive element to a rotatable housing to drive fluid into a conduit for transfer. In another embodiment, a pitot tube is attached to the rotatable housing, the motion of the housing driving fluid into the conduit for transfer. Other embodiments of the invention may utilize a pressure difference to drive fluid through a conduit. Embodiments of the invention may also utilize baffles to alter circulation of fluid that may be induced by the motion of the rotating housing, to promote fluid transfer through a conduit. Some of the aforementioned embodiments may be especially useful in transporting fluid in a liquid ring pump with a rotatable housing.

The invention relates to a diketene preparation device and a diketene preparation method. The diketene preparation device comprises an acetic acid evaporator, a mixer, a cracking furnace, a quenching condenser and an absorption tower. The outlets of the acetic acid evaporator and the mixer are connected with the cracking furnace; the cracking furnace is then connected with the multi-level quenching condenser; the quenching condenser is then connected with the absorption tower; one branch of the absorption tower is connected with a polymerization tank, and the other branch of the absorption tower is connected with a water absorption tower; and the outlet of the third-level quenching condenser is connected with the quenching condenser behind through a liquid ring pump. The diketene preparation device and diketene preparation method provided by the invention have the beneficial effects that when the cracked gas is pressurized, the impurities such as acetic acid, water and acetic anhydride in the cracked gas can be condensed out more sufficiently, and thus the quality of the cracked gas before entering the absorption tower is improved while the freezing level is lowered; and compared with the traditional technology in which the energy consumption accounts for 45% of the total cost of diketene, the device and method provided by the invention have the advantage that the energy consumption only accounts for 25% of the total cost of diketene through improvement.

The invention provides an efficient gas-liquid separation device of a liquid ring pump. The device comprises a tank body, wherein an inlet chamber, a condensation chamber, a settling chamber and a liquid collecting chamber are arranged in the tank body; a guide plate a and a guide plate b are arranged in the inlet chamber; the condensation chamber communicates with the inlet chamber; a paddle is arranged in the inlet chamber; one end of the paddle is rotationally connected with the guide plate b, the other end of the paddle is connected with an external power assembly a; the settling chamber communicates with the condensation chamber, the settling chamber is separated from the condensation chamber through a guiding assembly, and the liquid collecting chamber is located below the condensation chamber. According to the invention, the inclined blade is additionally arranged in the condensation chamber, the blades rotate to prolong the retention time of water vapor in the condensation chamber and improve the water vapor separation effect, and meanwhile, the blades rotate to accelerate the gas exhaust efficiency, so that the technical problem of low water vapor separation efficiency inthe prior art is solved.

The invention provides a cold vacuum system which comprises a liquid ammonia gas-liquid separation tank, a screw compressor, an ammonia condenser, a liquid ammonia storage tank, a first cold condenser, a second cold condenser, a first steam jet vacuum pump, a second steam jet vacuum pump, a cooling water condenser, a liquid ring pump, a hot well and a deicing tank, wherein the liquid ammonia gas-liquid separation tank, screw compressor, ammonia condenser and liquid ammonia storage tank are connected sequentially; the first cold condenser and the second cold condenser are respectively connected with the liquid ammonia gas-liquid separation tank; the first steam jet vacuum pump, second steam jet vacuum pump, cooling water condenser and hot well are connected sequentially; the first steam jet vacuum pump is respectively connected with the first cold condenser and the second cold condenser; the liquid ring pump is connected with the cooling water condenser; and the deicing tank is respectively connected with the first cold condenser, second cold condenser and hot well. The invention can lower the steam consumption, reduce the discharge of carbon dioxide and sewage and effectively control the volatilization of irritative gas.

The invention relates to methods and systems for chemical management. In one embodiment, a blender is coupled to a processing system and configured to supply an appropriate solution or solutions to the system. Solutions provided by the blender are then reclaimed from the system and subsequently reintroduced for reuse. The blender may be operated to control the concentrations of various constituents in the solution prior to the solution being reintroduced to the system for reuse. Some chemicals introduced to the system may be temperature controlled. A back end vacuum pump subsystem separates gases from liquids as part of a waste management system.

Methods and systems for chemical management. In one embodiment, a blender is coupled to a processing system and configured to supply an appropriate solution or solutions to the system. Solutions provided by the blender are then reclaimed from the system and subsequently reintroduced for reuse. The blender may be operated to control the concentrations of various constituents in the solution prior to the solution being reintroduced to the system for reuse. Some chemicals introduced to the system may be temperature controlled. A back end vacuum pump subsystem separates gases from liquids as part of a waste management system.

The present invention is directed to a textured surface that provides for drag reduction, and therefore efficiency improvements in a liquid ring pump. At least a portion of the surfaces of the pump that contact fluid therein the pump are textured to control boundary layer separation. The texture can be a plurality of dimples are defined therein the surface. The dimples have a predetermined shape, size, density and pattern.

Converting a liquid ring pump which vents sealing liquid (compressant) from the working chamber of the pump to a liquid ring pump having a gas venting system by retasking a selected passage of the liquid ring pump. The passage is selected from a group of passages consisting of (1) a sealing liquid introduction passage and (2) a sealing liquid vent passage.

A device for recovering nanometer or sub-micron particles carried by a gas by generating a stabilized suspension, including: a vessel including a mechanism injecting a liquid; a gas discharge mechanism in an upper portion thereof, located near a particle filter; a particle suspension outlet; and a liquid ring pump, transferring and dispersing particles carried by a gas into a liquid. The pump introduces a gas laden with nanometer or sub-micron particles into the pump; injects at least one liquid into the pump; and discharges the mixture obtained following the transfer. The vessel also includes a mechanism introducing the mixture into the vessel and at least one piezoelectric pellet, immersed in the vessel, configured to generate a fog of micron-sized droplets.

Screw type liquid ring pump including a pump housing (9) with an inlet part (3) and an outlet part (11) and rotating helical screw rotor (8) inside the housing. The rotor is connected with a shaft (7) as well as a driving unit in the form of motor, preferably an electric motor (2), whereby the pump (20) with the pump housing (9) represents an elongation of the motor (2) with the motor housing thus representing an integrated or one piece unit. The shaft seal (22, 23) is provided wholly or partially in an annular space (24) provided within the rotor (8), whereby one end of the seal rests against an annular part (25) of the screw rotor provided in the annular space (24) between the rotor and the shaft, and its other end is tightly engaged against an inwardly protruding part (21) at the outlet end of the pump.

The invention provides devices, systems and methods for use in compressing and/or pumping gases or vapors using a fluid ring pump. In one embodiment, a rotor is provided for being rotatably mounted eccentrically within a housing on a liquid ring pump. The rotor comprises an annular inner surface having a plurality of radial apertures and a plurality of walled cells. The walled cells project radially outward from the annular inner surface. A wall on each of the walled cells extend around at least one of the radial apertures.