摘要:
A membrane distillation system includes a distillation vessel, an array of hollow fiber membranes pervious to distillate vapor but impervious to feed solution and an array of hollow tubes impervious to distillate vapor and feed solution but which allow thermal energy transmission. The system further includes a pump, a heat exchanger for heating the feed solution before it enters the hollow fiber membranes, and an outlet for removing distillate from the distillation vessel. A method for removing distillate from a feed solution includes delivering the feed solution through hollow tubes spanning a distillation vessel, heating the feed solution, delivering the feed solution through hollow fiber membranes spanning the distillation vessel to create a vapor pressure differential between the hollow fiber membranes and a distillation volume within the distillation vessel, and removing distillate from the distillation vessel.
摘要:
A membrane distillation system includes a membrane distillation module, a brine loop and a distillate loop. The brine loop and the distillate loop each include means for regulating flow of brine solution and distillate, respectively, to the membrane distillation module. The flow of brine solution and distillate is regulated to prevent brine solution and distillate from penetrating membranes of the membrane distillation module. A method of membrane distillation includes delivering brine solution and distillate to the membrane distillation module at low pressures in a first mode. The method also includes heating the brine solution and cooling the distillate and delivering portions of each to the membrane distillation module in a second mode. The portions of heated brine solution and cooled distillate are adjusted to facilitate membrane distillation while preventing liquid from penetrating membranes of the membrane distillation module.
摘要:
A power supply system includes an energy generator and an energy storage system, each electrically connected to a power bus. The power bus provides electrical power to a load. The energy generator includes a wind turbine and a solar panel. The energy storage system includes a storage device and a regulator. The regulator is configured to transfer energy from the power bus to the storage device when the power bus exceeds a maximum voltage and to transfer energy from the storage device to the power bus when the power bus drops below a minimum voltage.
摘要:
An apparatus is provided to mount a pedestal to a support. The support has first fastening elements different in number and position. The pedestal has a neck and a discharge port. The apparatus includes a flange, a mounting member, and a plurality of second fastening elements. The flange is formed around the neck. The mounting member has a channel which receives the flange. The plurality of second fastening elements cooperates with the mounting member and the first fastening elements of the support in order to clamp the flange between the mounting member and the support so as to secure the pedestal and discharge port at a desired orientation relative to the support. The support may comprise a motor and/or a mounting bracket, and the mounting member may comprise a swivel collar or a plurality of segments.
摘要:
A gear shaft assembly for use with a pump and a method of making the same are gear shaft of the present invention. The disclosed assembly includes a housing, a stepped shaft, and a gear rotationally disposed on the shaft. The shaft has a first end disposed in a first bore defined in the housing and a second end in threaded engagement with a second bore of the housing. A first shoulder of the shaft disposed adjacent the first end engages a portion of the housing to define a fully inserted position of the shaft. The gear is disposed on an intermediate section of the shaft between the first shoulder and a second shoulder located adjacent the second end.
摘要:
The current invention detects malfunctions in a variable flow delivery pump. These malfunctions prevent the pump from sustaining inherently high accuracy and/or cause damages to the pump. The invention detects the malfunctions without comparing sampled values to a preset absolute value. A malfunction is determined by a pattern of force exerted on a displacement pump in relation to the displacement positions. The pattern is compared to an empirically established range of pattern values. Once a malfunction is determined, the invention responds in a preselected manner.
摘要:
An optical system for a multidetector array spectrophotometer which includes multiple light sources for emitting light of selected wavelength ranges and means for selectively transmitting the selected wavelength ranges of light to respective slits of a multi-slit spectrogrpah for multiple wavelength range detection. The spectrograph has two or more slits which direct the selected wavelength ranges of the light spectra to fall upon a dispersive and focusing system which collects light from each slit, disperses the light by wavelength and refocuses the light at the positions of a single set of detectors.
摘要:
A high sensitivity conductivity detector for ion chromatography includes an isolated fluid cell and a measuring circuit including an operational amplifier having its input connected to the center tap of a transformer. Feedback from the operational amplifier maintains the center tap at virtual ground potential. The excitation voltage for the transformer is supplied by two operational amplifiers. A thermoelectric semiconductor device maintains the temperature of the sample cell at a constant, ambient temperature.
摘要:
Disclosed is an oxygen analyzer probe for use in situ in the flue gas stream of a furnace of the type having a housing, a solid electrolytic oxygen sensor adjacent to one end of the housing and first and second noble metal leads connected to the sensor. The present invention includes a terminal block within the housing to which the noble metal leads are releasably connected. At the terminal block intermediate leads of a metal dissimilar to the noble metal lead are connected thereto. Since all connections between dissimilar metals are made at the terminal block and since all such connections are at approximately the same temperature, no unbalanced thermocouples are introduced into the electrical path from the sensor. In one embodiment, the intermediate leads are comprised of a nickel alloy and have sufficient rigidity to form the prongs of a male plug connector which prongs extend from the rear end of the housing. A female plug connector mates with the male connector for easy disassembly of the probe during maintenance thereof.