8results about How to "Improve dissolved oxygen efficiency" patented technology

This invention discloses a river water ecological restoration and purification device, belonging to the field of river water purification technology. It includes a base plate with an air cushion installed at its bottom. Above the base plate, from front to back, are sequentially arranged an ice-breaking and salvage conveying component, a collection and separation component, a water purification component, and an oxygenation component. The collection and separation component contains a vibrating filter component. A drive component is located between the ice-breaking and salvage conveying component and the collection and separation component. A propeller is fixedly installed at the rear of the base plate, and a power component for unmanned operation is installed on the top of the base plate. This invention, through its integrated ice-breaking and salvage conveying component, collection and separation component, vibrating filter component, water purification component, and oxygenation component, highly integrates multiple functional modules such as ice breaking, salvage, conveying, solid-liquid separation, water purification, and oxygenation, filling the gap left by the inability of most cleaning equipment to be used in winter and achieving uninterrupted river ecological restoration.

The utility model belongs to the field of freshwater pond culture, and particularly relates to a freshwater pond culture aerator which comprises an L-shaped supporting plate. A mounting plate is fixedly connected to the top of the L-shaped supporting plate, a driving motor is arranged on the front face of the mounting plate, a transmission rod is fixedly connected to the output end of the driving motor, and a driving assembly is connected to one end of the transmission rod; the driving assembly comprises a toothed shaft A fixed to one end of the transmission rod, the toothed shaft A is in transmission connection with a toothed shaft B through a toothed belt, and a directional hole is formed in the toothed shaft B; through the toothed belt transmission design of a toothed shaft A and a toothed shaft B in the driving assembly, the synchronous rotation function of a stirring ring and a long oxygen conveying pipe is achieved, the problem that the oxygen dissolving efficiency is low due to the fact that stirring and oxygen conveying positions of a traditional aerator are separated is solved, the stirring ring stirs water flow to enable oxygen to be evenly diffused, and the oxygen dissolving efficiency is improved in combination with micropore release of an oxygenation head.

The application discloses a closed fishery circulating aquaculture system, which comprises an aquaculture device, a water circulation pipeline, a biochemical device, an oxygen supply device and a gas supply device. The aquaculture device comprises an aquaculture tank and a feeding assembly. The aquaculture tank is provided with an aquaculture cavity. The aquaculture tank is provided with a first water inlet pipe and a first water outlet pipe. The feeding assembly is arranged on the aquaculture tank. The water circulation pipeline is arranged between the first water inlet pipe and the first water outlet pipe. The biochemical device comprises a biochemical tank. The biochemical tank is provided with a biochemical cavity. The biochemical cavity is communicated with the water circulation pipeline. The biochemical cavity is used for accommodating nitrifying bacteria. The oxygen supply device is connected with the aquaculture tank and the biochemical tank. The gas supply device is provided with a gas conveying pipe between the aquaculture tank. The closed fishery circulating aquaculture system can not only meet the pressure requirement of aquatic products growing in different environmental pressures, but also make the water dissolving oxygen efficiency in the aquaculture cavity higher and be more beneficial to the growth of the aquatic products. In addition, the biochemical device is more beneficial to the growth of the photophobic and aerobic nitrifying bacteria.

The utility model discloses a microbial fermentation device which comprises a tank body, a stirring frame and at least two layers of stirring paddles which are arranged in the tank body and are distributed along the axial direction of the tank body, and the microbial fermentation device has the beneficial effects that fermentation liquor in the tank body can be stirred and aerated through the matched use of the arranged stirring frame and an aeration main pipe, so that the dissolved oxygen transmission efficiency and the mixing uniformity are improved; meanwhile, by arranging the flow guide pipe with the jet flow direction opposite to the rotating direction of the stirring paddle, a reverse strong vortex field can be formed in the tank, so that gas-liquid two phases generate a shearing effect, the retention time of bubbles is prolonged, and the oxygen dissolving efficiency is improved, in addition, due to strong vortexes generated by reverse jet flow, the rotating speed of the stirring frame can be properly reduced; the shearing damage caused by high rotating speed is reduced, and the problems of insufficient dissolved oxygen, low viable bacteria rate and over-high energy consumption in the traditional fermentation device are solved.

The application discloses a culture tank and a closed fishery culture system, and relates to the technical field of fishery culture. The culture tank comprises a tank body, a feeding assembly, a gas conveying pipe and an oxygen supply assembly. A culture cavity is formed in the tank body. The tank body is provided with a water inlet pipe connected with the culture cavity. The feeding assembly is arranged on the tank body and used for feeding the culture cavity. The gas conveying pipe is arranged on the tank body and connected with the culture cavity, and is used for conveying gas to the culture cavity to adjust the pressure in the culture cavity. The oxygen supply assembly is arranged on the tank body and used for supplying oxygen to the culture cavity. The culture tank and the closed fishery culture system can not only adjust the environmental pressure in the culture cavity of the tank body, thereby meeting the pressure requirements of aquatic products growing in different environmental pressures, but also can reduce the influence of external environment on the aquatic products. In addition, the oxygen dissolving efficiency is higher, the oxygen dissolving needs less supplement, and the energy consumption is lower.

The utility model discloses a combined type bioreactor, including bottom plate, transparent bucket body, sealing end cover, support plate, fixed flow guide cylinder, movable flow guide cylinder, fixed link, arc connecting plate, control ring, air distributor, air inlet pipe and stirring mechanism. Transparent bucket body installs on the bottom plate, and the top is sealed through the sealing end cover, and support plate installs in the center of bottom plate and supports fixed flow guide cylinder, and the movable flow guide cylinder of adjustable height is equipped with on the flow guide cylinder top, and movable flow guide cylinder realizes height locking through fixed link and control ring. Air distributor is equipped below fixed flow guide cylinder, and is connected with external air inlet pipe, realizes even gas dispersion. Motor drives stirring rod to carry out mechanical stirring, promotes culture solution circulation and mixes. The structure can flexibly adjust flow guide cylinder position according to liquid level height, improves mixing uniformity and oxygen utilization efficiency, enhances operation adaptability and sealing safety, is applicable to microbial culture and reaction under different working conditions.

This utility model relates to the field of water aeration technology, specifically to an integrated air-water mixing oxygenation system. It includes an oxygenation tower, which is frustum-shaped and contains an aeration chamber. It also includes a main water supply pipe for conveying water flow, with multiple oxygenation towers. Multiple branch water supply pipes are connected to the main water supply pipe and are connected to the upper part of the oxygenation tower. Furthermore, it includes an aerator for supplying airflow to the oxygenation tower, with an air supply pipe connected to the outlet of the aerator. This air supply pipe is connected to the lower part of the oxygenation tower, and a water supply pipe for supplying water to a water tank is connected to the lower part of the oxygenation tower. This integrated air-water mixing oxygenation system allows for flexible selection of the number of oxygenation towers according to the size of the water tank, achieving efficient oxygenation for large-area water tanks. The air supply pipe connects to the lower part of the oxygenation tower, and the branch water supply pipes connect to the upper part. During the descent of the water flow, it can better mix and contact with the rising air bubbles, prolonging the contact time between the bubbles and water and improving dissolved oxygen efficiency.

The utility model discloses a fish fry cultivation releases oxygen device, including mounting seat, the mounting seat outer wall is provided with external fixed establishment, the mounting seat top is provided with moving plate, the moving plate and mounting seat between are provided with horizontal movement mechanism, the moving plate outer wall is provided with the lifting plate, the lifting plate and moving plate between are provided with height adjusting mechanism, the lifting plate outer wall is provided with agitating treatment mechanism, the lifting plate outer wall is provided with ventilation treatment mechanism, the lifting plate both ends outer wall all are provided with protection institution. The utility model through agitating and ventilation cooperation promote the oxygen dissolving efficiency, and the third motor drive rotating shaft and the rotation of agitating rod of agitating treatment mechanism, break the water layer stratification and make oxygen distribution even, and the air pump of ventilation treatment mechanism passes through the air inlet pipe, hollow rotating shaft and gas guide hole and leads into the oxygen of agitating rod, and then releases the small bubble through the air jet pipe, and increases the contact area with water, and rapidly promotes the oxygen content in water.