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An arrangement and method for dehumidifying greenhouse air and a greenhouse

A greenhouse and air technology, applied in the field of greenhouses, can solve problems such as expensive

Active Publication Date: 2009-04-01
NOVARBO OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] All current solutions for cooling and drying the air in closed greenhouses are very expensive in terms of investment costs and also partly in terms of operating costs, which is why the solutions proposed so far except on a trial basis The reason why it has not been actually put into use in greenhouse cultivation other than some applications of the structure

Method used

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  • An arrangement and method for dehumidifying greenhouse air and a greenhouse
  • An arrangement and method for dehumidifying greenhouse air and a greenhouse
  • An arrangement and method for dehumidifying greenhouse air and a greenhouse

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Embodiment Construction

[0044] Figure 1 shows a general embodiment of the invention, where a water distribution device 1 is arranged in the upper part of the greenhouse, spraying water into the air space of the greenhouse without a separate condensation chamber, structure or blower. The temperature of the water is below its dew point. The devices are preferably sized so that by using them at least about 50 liters of water per square meter of greenhouse can be sprayed into the greenhouse air space within one hour. The water distribution device 1 is located in the central part of the upper part of the greenhouse and / or at the sides and / or under the cultivation tables in the greenhouse.

[0045] In the lower part of the greenhouse is a water collection device 2 for collecting the water sprayed from the upper part and for returning the water to the devices of the system.

[0046] The collected water is conveyed from the greenhouse along a discharge pipe 5 to which, outside the greenhouse, a heat exchang...

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Abstract

A system for drying and cooling greenhouse air, the system comprising water distribution means (1), by means of which water cooler than the dewpoint temperature of the greenhouse can be sprayed directly into its the air space without separate condenser chambers, structures and fans.

Description

technical field [0001] The present invention relates to a system and a method for drying and cooling the air of a greenhouse and a greenhouse equipped with a system according to the invention. Background technique [0002] In modern greenhouse production, the goal is to control the climate in the greenhouse to coincide as closely as possible with the optimum conditions for plant growth. In optimum growth conditions, the temperature in the greenhouse is about 18-30° C., the air humidity is about 60-90%, and the carbon dioxide content is above 1000 ppm, depending on the plant to be cultivated and the occasion. Optimal conditions for growth require good control of air temperature, humidity and carbon dioxide levels. [0003] Greenhouses are in common use, where the climate is controlled by means of vents and / or blowers. In this case, excess heat generated by solar radiation is removed by ventilation. Ventilation is also at least partially required in Finland for approximatel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/24F24F3/14
CPCF24F3/14F24F2003/144A01G9/246Y02A40/25
Inventor 马尔库·豪基奥亚尤卡·胡图宁埃斯科·胡赫塔-科伊维斯托
Owner NOVARBO OY
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