A mobile system for the in-situ generation of oxygen and compressed air with no build-up thereof, which increases the concentration of dissolved oxygen in the cages as required

Abstract

The present invention relates to a mobile system (100) for the in-situ generation of oxygen and compressed air with no build-up thereof, which increases the concentration of dissolved oxygen in the cages as required, being modular and mobile, weighing at least 10 tonnes, not producing its own electricity, and automated, comprising: a container (101) comprising inside of same: at least one oxygen generation means (102) with at least one oxygen tank (104); at least one air compression means (103) with at least one air tank (105); pipes for transporting air and / or oxygen from the mobile system (100) to at least one cage or container for aquaculture; control means (106) connected to air sensors and oxygen sensors located within the cages or containers for aquaculture, to collect the air and oxygen data respectively and to send those data in order to command the generation and delivery of oxygen to said cages or containers for aquaculture, in accordance with the biological species to be farmed; and electrical connection means (110) that are connected to the electricity grid and supply electricity to the oxygen generation means (102); the air compression means (103); the air sensors and oxygen sensors, and to the control means (106).

Description

The mobile system (100) had two oxygen generation units (102), with two oxygen tanks (104); which in one line produced 19,7 m3 / h (33.6 SCFM), with a flow rate of 0,96 Sm3 / min and a mass flow rate of 75 kg / h, while the other line produced 39,6 m3 / h (67,4 SCFM), with a flow rate of 1,91 Sm3 / min and a mass flow rate of 150 kg / h, and a means for compressing air (103), which produced line produced 441 m3 / h (749 SCFM), with a flow rate of 21.22 Sm3 / min and a mass flow rate of 1502 kg / h, The minimum oxygen pressure was 200 kPa (2 Bar) and the minimum air pressure was 450 kPa (4,5 Bar). As a result, higher oxygen levels were observed in the cages only 5 minutes after the start of diffusion, raising the saturation of the cages up to 110% oxygen, thus increasing the delivery of food to the salmon, thanks to the oxygen injection. Constant remote oxygen monitoring and control ensured optimal use of the system and improved salmon growth.

Claims

1- A mobile system (100) for generating oxygen and compressed air in-situ without accumulation, increasing dissolved oxygen concentrations in cages on demand, in a modular, mobile manner of at least 10 tons, without producing electrical power of its own, automated, CHARACTERIZED in that it comprises:a container (101), comprising inside:at least one oxygen generating means (102), with at least one oxygen pond (104);at least one means for compressing air (103), with at least one air container (105);ducts for transporting air and / or oxygen from the mobile system (100) to at least one aquaculture cage or container;control means (106), which are connected to air sensors and oxygen sensors located in the cages or containers for aquaculture, to take the respective air and oxygen data and send this data to those who command the generation and delivery of oxygen to said cages or containers for aquaculture, according to the biological species to be cultivated; andelectrical connection means (110) which are connected to the mains and supply electricity to the oxygen generation means (102); the means for compressing air (103); the air sensors and oxygen sensors, and to the control means (106), wherein, the ratio between the total volume of the system and the generated oxygen flow is between 0.3 and 1 m3 h / kg.2- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that it comprises oxygen control valves (107) and air control valves (108), which are commanded by the control means (106), for metering the delivery of oxygen of at least 90% purity.3- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that the pressure in the ducts for transporting oxygen is at least 150 kPa (1.5 Bar).4- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that the pressure in the ducts for conveying air is at least 250 kPa (2.5 Bar).5- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1,2, 3 or 4, CHARACTERIZED in that the diffusion of air and / or oxygen is performed in a diffuser for each gas or a single diffuser for both gases which is fed by an air duct and an oxygen duct.6- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, 2, 3 or 4, CHARACTERIZED in that it further comprises a water pump (111) for inserting water into cages or containers for aquaculture enriched with air, oxygen or mixture of both gases.7- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that it further comprises at least one drain (112) for removing water from an air dryer (113) connected to said at least one oxygen generation means (102).8- The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that it further comprises solar panels with batteries and / or voltage inverters to supplement the delivery of electrical power to sensors, control means (106), among other electrical or electronic equipment.9- The mobile system (100) for in-situ oxygen generation according to claim 1, CHARACTERIZED in that the ratio between the amount of air generated and the amount of oxygen generated is between 15 to 1 and 4 to 1 in volume, in order to decrease energy consumption with respect to oxygenation of the aqueous medium.10-The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that it further comprises rolling means at the bottom of the container (101), to facilitate moving the mobile system (100).11-The mobile system (100) for generating oxygen and compressed air in-situ according to claim 1, CHARACTERIZED in that it further comprises at least one floating means at the bottom of the container (101), to facilitate the displacement of the mobile system (100) on a liquid fluid.12-The mobile system (100) for generating oxygen and compressed air in-situ according to claim 11, CHARACTERIZED in that the at least two containers (101) are on at least one common floating medium.

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