摘要:
In cleaning by sodium hypochlorite, filtration membrane cartridges are immersed in a washing tank storing a solution of sodium hypochlorite to decompose and remove organic contaminants clogging the pores of filtration membranes by oxidation of sodium hypochlorite; in rinsing with water, the cartridges are immersed in a washing tank storing a rinsing water to wash away the sodium hypochlorite attached to the filtration membrane by the rinsing water; in cleaning by oxalic acid, the cartridges are immersed in a washing tank storing oxalic acid to wash away ferrous substances attached to the filtration membrane by oxalic acid; and in giving hydrophilic property by a hydrophilic agent, the cartridges are immersed in a washing tank storing a solution of the hydrophilic agent so as to apply the hydrophilic agent to the filtration membranes in preparation for dry lay-up.
摘要:
The invention concerns a transformer system comprising an enclosure (1) housing a voltage transformer (4) and an electrical connection guided outside the enclosure (1) and electrically connected to the voltage transformer (4). Said electrical connection is for connecting the transformer system to a high or medium voltage installation. In order to be able to control easily the voltage on a high voltage installation, the invention proposes an improved transformer system whereby in the enclosure (1) is provided a decoupling device (12) for temporarily interrupting the electrical connection between the voltage transformer (4) and the first connector (6, said decoupling device capable of being actuated from outside the enclosure (1). Said transformer system enables to control the direct voltage without having to dismantle the high voltage installation.
摘要:
A process is disclosed for transporting dangerous fluids, in particular acid gas, as well as a pipe for dangerous fluids, a process for manufacturing the same and its use. The dangerous fluid is transported in a double-walled pipe. The pipe is composed of an outer tube (1) with an inner liner (3). The inner liner (3) is highly resistant to aggressive media. A direct contact between the fluid medium and the outer tube (1) is thus avoided and the corrosion resistance of the pipe is significantly increased.
摘要:
The invention relates to a method for controlling an exposure device for photomechanical production of structured surfaces as an image of an electronically stored pattern, specially for the exposure of printing plates, wherein the exposure device comprises at least one light source (3), an imaging unit (8) consisting of movable grid-like arranged microscopic mirrors that can be individually controlled by electronic means, and imaging optics (9). In order to reduce exposure time without impairing quality, the invention provides that the pattern be electronically split into two dimensional partial images, that partial images be successively represented by the imaging unit (8) while at the same time representing the total surface of each partial image, and that partial exposures of surfaces to be structured be successively carried out. This is done by displacing the exposure head (1) fitted with the light source (3), the imaging unit (8) and the imaging optics (9) between two partial exposures from one exposure position to the other and by retaining said head there for exposure so that individual partial images can be regrouped to form a total image of the electronically stored pattern.
摘要:
The invention concerns a motor vehicle trailer coupling with a bar (2) on which a ball (3) is generally located. In order to prevent the bar (2) from projecting beyond the rear bumper of the vehicle, the bar can be moved by a motor into a corresponding rest position.
摘要:
A bone implant has a shaft (1) anchored into a bone. The surface of the bone implant is shaped into detail elements (8) oriented in a certain direction. The detail elements (8) have pointed shapes and are partially linked by bridge-like and/or net-like connecting strips. An intimate connection is thus achieved between bone and implant. Also disclosed is a process for producing the bone implant by means of a model capable of being mounted.
摘要:
Device for the locking of a container to a vehicle chassis comprising a housing (1) provided with a protruding guide block (2) on the side of the housing facing the container, a pivot (3) supported in the housing (1) and comprising a shaft guided in the guide block (2), a projecting hammer-head-shaped locking section (5) and an operating section (6) arranged opposite to the locking section (5), the locking being effected by turning the pivot (3) through an operating angle of some 90°. To guarantee simple and secure operation of said device, the guide block (2) has a rotation limitation section (17) with at least two stops acting in the directions of rotation and the pivot (3) has at least a radial projection (22) which limits the rotation of the pivot (3) in the two directions of rotation to the turning range of the operating angle between a locked position and a released position through resting faces corresponding to the stops of the rotation limitation section (17).
摘要:
The invention relates to a method for producing comparability of spectrometer measurements with various measuring instruments of the same type of a family, and a spectrometer for carrying out said method. It also relates to a spectrometer with automatic standardization. Said method and said spectrometer can be used to substantially improve the comparability and the precision of spectroscopic measurements since the measuring values can be reproduced by calibration of the spectrometer, and different probe consistencies or dimensions are compensated.