摘要:
An electromagnetic fluid conditioning (EFC) apparatus and method to control paraffin and/or asphaltene is disclosed. Further, the present invention incorporates the discovery that the electric field must have specific characteristics to achieve the efficiency described herein. The invention disclosed is an apparatus and method for inducing a magnetic field parallel to the flow of fluid in the conduit at surface or downhole conditions and an electrical field orthogonal to the direction of the flow of fluid in the conductor. The magnetic and electrical fields have high magnetic and electric intensity, respectively. A high vibration frequency of the fields is achieved using high frequency AC current or high pulsed DC current. The apparatus and method controls the deposition of paraffin, asphaltene and other susceptible substances.
摘要:
A buffer system for separating an aseptic fluid handling assembly from a drain includes a fluid receiving housing in fluid flow communication with a fluid discharge outlet of the aseptic fluid handling assembly. A trapped fluid discharge opening near the bottom of the housing, includes a tube which extends above the bottom into a baffle container. The baffle container is in the form of an enclosure having openings at the bottom thereof to admit fluids contained in the housing. A discharge conduit is in fluid flow communication with the discharge opening. A first fluid level detector in the housing activates at least one valve in the discharge conduit by a control which opens and closes the valve in response selected fluid levels detected by the fluid level detector. In a preferred embodiment the first fluid level detect detects a fluid level exceeding a preselected depth in the housing and a second fluid level detector detects fluid levels dropping below a second preselected level in the housing. Preferably the second fluid level detector is operatively connected to the valve to cause closing thereof in the event the fluid level drops below the second preselected level.
摘要:
An electromagnetic fluid conditioning (EFC) apparatus and method to control paraffin and/or asphaltene is disclosed. Further, the present invention incorporates the discovery that the electric field must have specific characteristics to achieve the efficiency described herein. The invention disclosed is an apparatus and method for inducing a magnetic field parallel to the flow of fluid in the conduit at surface or downhole conditions and an electrical field orthogonal to the direction of the flow of fluid in the conductor. The EFC apparatus comprises a non-magnetic conduit having opposite ends and allowing a flow of product to go therethrough, an insulated coiled wire or winding in a magnetic enclosure within its opposite ends. The adjacent turns of the wire are electrically insulated from each other and the non-magnetic conduit. The winding is protected with an aluminum or stainless steel or other suitable non-magnetic material that encapsulates the wire and part of the non-magnetic conduit. The internal wall of the non-magnetic conduit is coated with a plastic film to insulate the non-magnetic conduit from the electrical field induced within the non-magnetic conduit of the magnetic field. The peripheral electrical devices are external. The peripheral electrical devices required are as follows: a mode selector switch (1/2 wave/full wave), a rectifier if DC current is desired, a voltage transformer if other voltage difference from 112 volts is required depending on the specific application.
摘要:
The invention relates to an electro-hydraulic actuator, especially for an antilock brake system, which directly converts electrical input energy into hydraulic useful energy and has an especially simple and problem-free design as well as very rapid adjustability. A working chamber of the actuator according to the invention is filled with an electrostrictive fluid and provided with an electrically controlled electrode system to generate an electrical field that causes a change in pressure and/or volume in the electrostrictive fluid.
摘要:
A valve used to control the flow of a magnetorheological fluid, in which the mechanical properties of the magnetorheological fluid are varied by applying a magnetic field, is described. The valve can comprise a magnetoconducting body with a magnetic core that houses an induction coil winding, and an hydraulic channel located between the outside of the core and the inside of the body connected to a fluid inlet port and an outlet port, in which magnetorheological fluid flows from the inlet port through the hydraulic line to the outlet port. Devices employing magnetorheological valves are also described.
摘要:
A control apparatus for an electroviscous fluid has a pair of electrodes between which the electroviscous fluid is disposed and a control device for applying nearly-trapezoidal shaped pulses positive and negative voltages alternately across the electrodes to control viscosity of the electroviscous fluid. The control apparatus changes gradually a voltage value when switching between the positive voltage and the negative voltage.
摘要:
A fluid control valve of "Wheatstone Bridge" arrangement for use with electrorheological fluids comprises a plurality of channel plates and printed circuit board plates alternatingly stacked together. Electrodes are printed on the printed circuit board plates to form walls on sides of channels formed in the channel plates. Holes piercing the printed circuit board plates are so located as to permit the flow of fluid through the printed circuit board plates from channel plate to channel plate at specific locations thereby causing the flow of fluid through a "Wheatstone Bridge" arrangement. Electric activation of selected electrodes cause the flow of fluid in channels between the selected electrodes to become exceedingly viscous or "freeze" and thereby close selected portions of the "Wheatstone Bridge". In the most common arrangement closure of parallel valves cause flow through the cross arm of the "Wheatstone Bridge" and actuation of an hydraulic device connected into the cross arm. The printed circuit board plates can be manufactured with conventional automated printed circuit manufacturing technology and the channel plates may be punched or otherwise formed with automated technology. Such parameters as pressure drop and capacity can be adjusted by changing the fluid, the number of sets, size, spacing and shape of alternating channel plates and printed circuit board plates.
摘要:
In a method for transmitting force from one piston to another piston, a superplastic alloy is used between the pistons as a pressure transmitting medium. An apparatus adopting the method serves as a force multiplication apparatus.
摘要:
An actuator comprises an impervious deformable bladder containing a fluid whose boiling temperature is equal to a set cut-in temperature. On reaching that temperature, the fluid within the bladder will be vaporized, cause the bladder to expand, and produce accordingly a displacement movement which can be utilized for a variety of purposes.
摘要:
Excessive pressure is relieved in a fluid actuator by controlled destruction of an internal extensible diaphragm without damage to the exterior structural integrity of the actuator. Upon occurrence of such abnormal excessive pressure in the actuator pressure chamber, the diaphragm, which is otherwise substantially supported, is permitted to deform at a known location until fracturing thereof occurs to release fluid from the pressure chamber. In one form the invention comprises an opening in the actuator guide cap and in other forms comprises openings in the actuator piston or an enlargement in part of the guide cap.