摘要:
Solar collectors have flat plate-like foil tubes with permeable interlayers with lattice structure surfaces bonded to the foils of the tube. Several tubes with insulating backing are seam bonded together to form a sheet for covering a roof. Heat transfer medium flows from inlets into a space along one side of the tube, through the permeable interlayer into a space along the other side of the tube and through an outlet. The structure is thin, light, inexpensive and easy to install. Flow of medium which covers substantially all of a surface may be precisely controlled. Temperature of medium in the collectors may be maintained only slightly higher than temperatures throughout the system.
摘要:
A granular or plate-like calcium aluminum silicate layer stores water beneath fertile soil. The silicate material may be coated with fertilizer or chemicals and may be shipped and installed within a wrapping, at least one surface of which is moisture pervious. A fleece-like material may form the pervious surface. A silicate container with a perforated cover and sidewalls fits within a planter. A filler pipe extends through the soil into the container. The silicate material may be mixed with the fertile soil.
摘要:
A device for dedusting dust-containing gases to which have been supplied a liquid in a finely-distributed form. The device is characterized by a tubular structure having at least one venturi-like constriction for receiving the dust-containing particles. The constriction is characterized by the provision of a converging section having a reduced cross-sectional dimension which generates crossing paths of the fluid and dust particles which extend beyond the narrowest cross-sectional position of the constriction. Further downstream is positioned a diverging section to which is adjoined at least one other converging section. The last-named converging section also has a cross-section which reduces more than linearly in the direction of particle flow. A final diverging section adjoins the last-named converging section, between which is formed a tear-off edge for creating further turbulent mixing of the particles.
摘要:
A process for the purification of gas, which is generated in pressure gasification of coal, which uses a wash oil, especially tar oil, as the washing liquid to avoid clogging of the washing apparatus by tars and tar compounds which precipitate out of the washing liquid when water or aqueous solutions are employed as the washing liquid. The wash oil is preferably used in the circulation, from which solids and tars are continuously removed, and is then fed into the pressure reactor again. The wash oil circulation is continually regenerated through distillation, and the residues are fed into the pressure reactor. Heat is constantly extracted from the gas before or during the washing in a heat exchange process, making it possible to keep the heat loss extremely low and to create optimum temperature at every point of the total cycle by appropriate extraction or addition of heat. The heat extracted may be used for generation of steam, which is fed into the pressure reactor, into the distillation process for the regeneration and purification of the wash oil, and/or into the discharging flow of purified gas. The gas is also desirably brought into contact with separating materials, such as alkali, earth alkali, dolomite, etc., for the purpose of separating hydrogen sulfide.
摘要:
Gases formed on charging a coke oven are extracted, burned and washed. A gas-handling system, mounted on a machinery truck of the coke-oven plant, is used. An extractor unit of the system comprises an extractor conduit which is connected to an updraft pipe of a coke oven during charging of the oven. The gas-handling system specifically comprises a combustion chamber shaped and dimensioned to ensure a gas flow at a velocity which does not exceed 10 meters per second. The combustion chamber comprises a heat-retentative lining to ensure that the temperature within the chamber does not fall substantially below the ignition temperature of charge gases between successive charging operations.
摘要:
A cleansing liquid is conveyed along a first closed circuit which includes a scrubbing device. Here, the liquid comes into contact with and scrubs an impurity-containing gas so that the impurities in the gas are transferred to the liquid. When the concentration of impurities in the liquid has increased to a sufficient extent, the impurity-laden liquid is admitted into a second closed circuit which communicates with the first circuit. The second circuit includes an evaporator in which the impurities contained in the liquid are caused to evaporate from the latter. The purified liquid is recycled to the first circuit while the evaporated and highly concentrated impurities are admitted into a combustion chamber and burned.
摘要:
The present invention relates to a process for removing harmful hydrocarbons, particularly plant protective aerosols and vapors, from the fresh air supplied to a vehicle cabin. The loaded fresh air is subjected to a partial condensation with subsequent phase separation. The fresh air is cooled below the dew point of the components to be removed in a type of cold trap. It has a device for collecting and draining the obtained condensate. A standard cooling plant may be installed for providing the cold necessary for partial condensation. If the vehicle is already equipped with an air conditioning system, then the cooling necessary for partial condensation is tapped directly from the air conditioner cycle. It is possible for the fresh air stream to be passed over the evaporator of the air conditioner. The cold air stream present following the removal of the condensate can be warmed in heat exchange with fresh air which is to be cooled prior to its further release into the vehicle cabin. This prevents an overcooling of the vehicle cabin.
摘要:
The invention refers to a process, a filter, as well as a device for the elimination of bacteria and/or viruses and/or fungi and/or spores and/or germs and/or allergens and/or pollutants and/or odors, etc from the breathing air by means of a filter consisting of one or several chemisorption mass layers. In order to avoid that biofilters which have been in operation for a longer time do not release fungi spores and bacteria under certain circumstances, the invention proposes that downstream of a biofilter, bulk material is used alternately as very strongly alkaline or very strongly acid chemisorption layers, or vice versa. As bulk material for the individual chemisorption mass layers coal coke of the type III or IV of crushed coke is used, with strongly alkaline and strongly acid chemisorption layers. The individual chemisorption layers are felt layers, which are impregnated with the corresponding liquids to be alkaline, acid and/or neutral, or vice versa, dried and then packed on top of each other to be used as chemisorption filters, whereby between the chemisorption mass layers hydrophobic water-repellant separating layers are inserted. In order to eliminate odors, the chemisorption mass layers consist of active carbon treated with propylene glycol. For the allergens-free humidification of the actual humidifier, upstream of the suction side a chemisorption filter device is provided, which is intended as an absolute barrier for flying allergens and at the same time a germ barrier, whereby after the device is switched off manually or automatically, a barrier is insured also on the outflow side by a bactericidal, fungicidal chemisorption filter.
摘要:
A cooling tower has a flue gas outlet extending upwardly above the heat exchanger baffles in which the water from a steam power plant is cooled in counterflow to a rising cooling air stream. The mouth of the duct is formed with a droplet trap supplied with rinse water and cooperates with a collector for the rinse water which is led out of the tower independently of the cooled water of the heat exchanger zone.
摘要:
Air is fed to a cabin after having been purified to remove sulfur dioxide, nitrogen monoxide, nitrogen dioxide, carbon monoxide and hydrocarbons therefrom, e.g. to serve a space occupied by a human. According to the invention, an ozonizer is provided to generate ozone which is reacted with the sulfur dioxide and nitrogen monoxide to produce sulfur trioxide and nitrogen dioxide respectively. The pollutants are then taken up in part on sorption masses and the air is then heated before it is introduced into a catalyst mass wherein the carbon monoxide is reacted to form carbon dioxide. The carbon dioxide can then be absorbed and the purified air, after cooling, can be fed to the cabin.