Provision for the control of the climate in greenhouses and similar structures of protection of crops. (Machine-translation by Google Translate, not legally binding)
Disposition for climate control in greenhouses and similar crop protection structures, designed to regulate the climate of said enclosures, by controlling the deficit of vapor pressure of the air, said deficit being the difference between the vapor pressure of the air and the saturation pressure at...
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Zusammenfassung: | Disposition for climate control in greenhouses and similar crop protection structures, designed to regulate the climate of said enclosures, by controlling the deficit of vapor pressure of the air, said deficit being the difference between the vapor pressure of the air and the saturation pressure at the temperature at which that air is, characterized in that it comprises a low-pressure "fog" system (1), composed of a network of pvc pipes (2), which are placed on top of each other. The crops, between which inserted a series of nozzles (3) that typically operate at four atmospheres, having a flow rate close to seven liters per hour, having a non-return valve (4), to achieve its pressurization, and a centrifugal pump (5) for the supply of filtered water to said network of pipes (2), a sensor (6) of humidity and temperature, as well as a controller module (7), constituted by a hardware and a firmware, which by means of the received reading of the sensor (6), it calculates by means of a proportional, integrative and differential algorithm, the vapor pressure deficit, compares it with the setpoint value and adjusts the duration of the pulses of the fog system (1) the relay is activated of the pump (5) that gives way to the water towards the nozzles (3). (Machine-translation by Google Translate, not legally binding)
1. Disposición para el control del clima en invernaderos y estructuras similares de protección de cultivos, destinada a regular el clima de dichos recintos, mediante el control del déficit de presión de vapor del aire, siendo dicho déficit la diferencia entre la presión de vapor del aire y la presión de saturación a la temperatura a la que está ese aire, caracterizada por el hecho de comprender un sistema "fog" (1) de baja presión, compuesto por una red de tuberías de PVC (2), que se sitúan sobre los cultivos, entre las que se intercalan insertadas una serie de boquillas (3) que funcionan típicamente a cuatro atmósferas, teniendo un caudal cercano a los siete litros por hora, disponiendo de una válvula antirretorno (4), para conseguir su presurización, y de una bomba centrífuga (5) para el suministro de agua filtrada a dicha red de tuberías (2), un sensor (6) de humedad y temperatura, así como un módulo controlador (7), constituido por un hardware y un firmware, que mediante la lectura recibida del sensor (6), calcula mediante un algoritmo proporcional, integrativo y diferencial, el déficit de presión de vapor, lo compara con el valor de consigna y aju |
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