摘要:
An irrigation valve (1) to be placed in the inlet pipe for irrigation liquid under a cultivation table for potted plants or the like comprises a valve housing (9) with an inlet (2) and an outlet (3) as well as a mixing chamber (5) and a nozzle (6). The valve comprises a further lateral (4) for the introduction of air to be mixed with the irrigation liquid and for the draining of irrigation liquid. The application also relates to an irrigation plant using a number of valves, one under each cultivation table, being manoeuvred by a shared magnet valve placed in a shared inlet pipe for the pressure-water.
摘要:
A process for aerobic, fermentative hydrolysis, in particular for composting organic materials (1), is carried out in a closed container (5). Fresh air (7, 26) is fed into the organic materials (1). The warm moisture-laden outgoing air (8, 25) is conducted away. The customary presence of noxious substances, and in particular the unpleasant odours, is prevented by cooling the outgoing air to condense the moisture it contains (14). The dry outgoing air is then conveyed at ambient temperature to the atmosphere. A device for carrying out this process comprises a fermentation container (5) for receiving the organic materials (1) to be processed with a fresh air inlet and an outgoing air outlet for removal of the warm moisture-laden outgoing air. The presence of noxious substances, in particular the unpleasant odours in the atmosphere, is prevented by the use of a fermentation container (5) closed on all sides and by the provision of a heat-exchanger (9, 28) in which the heat in the outgoing air is absorbed by a heat-transfert medium, preferably the incoming fresh air, in order to condense (14) the moisture in the outgoing air.
摘要:
Un procédé permettant l'hydrolyse aérobie par fermentation, notamment pour le compostage de substances organiques (1), est effectué dans un réservoir fermé (5). De l'air frais (7, 26) est amené aux substances organiques (1). L'air sortant (8, 25) chargé de chaleur et d'humidité est évacué. On évite la présence de substances nocives, et en particulier les odeurs nauséabondes, en refroidissant l'air sortant afin de condenser l'humidité qu'il contient (14). L'air sortant sec est ensuite rejeté à température ambiante dans l'atmosphère. Un dispositif permettant la mise en oeuvre du procédé se compose d'un réservoir de fermentation (5) destiné à recevoir les substances organiques (1) à traiter et comportant une arrivée d'air frais et une sortie pour l'évacuation de l'air sortant chargé de chaleur et d'humidité. On évite la présence de substances nocives, en particulier des odeurs nauséabondes dans l'atmosphère, en utilisant un réservoir de fermentation (5) fermé de tous côtés et en prévoyant un échangeur de chaleur (9, 28) dans lequel la chaleur de l'air sortant est absorbée par un milieu de transfert de chaleur, de préférence l'air frais entrant, afin de condenser (14) l'humidité contenue dans l'air sortant.
摘要:
The nozzle comprises a nozzle body (1) having a through-going hole (11) for conveying pressurized air, a nozzle head (20) mounted on the nozzle body - (1) and comprising a pressure chamber (21) and an orifice (22) for pressurized air, a core (30) situated in the hole (11) and having a water passage duct (31 the water dicharge orifice edge (32) of which is essentially flush with the orifice (2), and a water fed tube (40) led through the nozzle body (1) and the core (30) to the duct (31). The level of the water discharge orifice (32) is adjustable relative to the orifice for pressurized air (22), whereby the size of the drops and the length of dispersal of the atomized water conveyed by the pressurized air are adjustable. The use of such nozzles only necessitates two nozzle pipes extending parallel to and at a distance from a hothouse wall each, as the nozzles are preferably mutually displaced. Each jet cone may be of a length of up to 20 meters, and the mist cone has a tendency to disperse in the shape of a gramophone horn or a megaphone funnel after having passed the opposite nozzle pipe.