principle

微孔管增氧技术，采用罗茨鼓风机将空气送入输气管道，输气管道将空气送入微孔曝气管，由于其孔径小，可产生大量微细化气泡从管壁冒出分散到水中，而且上升速度缓慢，气泡在水中移动行程长，与水体接触充分，气液相间氧分子交换充分，而且还增加了水流的旋转和上下流动。水流的上下流动将上层富含氧气的水带人底层，同时水流的旋转流动将微孔管周围富含氧气的水向外扩散，实现养殖池水的均匀增氧。微孔管增氧技术具有溶氧效率高、改善养殖水体生态环境、提高放养密度、增加养殖产量、降低能耗、使用和操作方便等优点。

Microporous tube oxygen enrichment technology uses Roots blower to send air into the gas transmission pipeline, and the gas transmission pipeline sends air into the microporous aeration pipe. Because of its small pore size, a large number of micro-fine bubbles can emerge from the pipe wall and disperse into the water, and the rising speed is slow. The bubbles move in the water for a long time, have full contact with the water body, and have sufficient exchange of oxygen molecules between the gas-liquid phase, and also increase the rotation and up-down flow of water flow. The up-and-down flow of the water brings the oxygen-rich water from the upper layer to the bottom, while the rotating flow of the water diffuses the oxygen-rich water around the microporous tube outward to realize the uniform oxygen enrichment of the aquaculture pond water. Microporous tube oxygenation technology has the advantages of high dissolved oxygen efficiency, improved ecological environment of aquaculture water body, increased stocking density, increased aquaculture yield, reduced energy consumption, safe use and convenient operation.

结构

structure

微孔增氧设施主要由主机（电动机、罗茨鼓风机、储气缓冲装置）、主管（PVC塑料管）、支管（PVC塑料或橡胶软管）、微孔曝气管（新型高分子材料制成）等组成（如图3-1所示）。主机常用功率有7.5千瓦、5.5千瓦、3.0千瓦、2.2千瓦、1.5千瓦。主机连接储气缓冲装置、储气缓冲装置连接主管、主管连接支管、支管（橡胶软管）连接曝气管。

Micropore oxygen enrichment facilities are mainly composed of main machine (motor, roots blower, gas storage buffer device), main pipe (PVC plastic pipe), branch pipe (PVC plastic or rubber hose), microporous aeration pipe (made of new polymer material), etc. (as shown in Figure 3-1). The common power of the main engine is 7.5 kW, 5.5 kW, 3.0 kW, 2.2 kW and 1.5 kW. The main engine is connected to the air storage buffer device, the air storage buffer device is connected to the main pipe, the main pipe is connected to the branch pipe, and the branch pipe (rubber hose) is connected to the aeration pipe.

安装

install

安装方式主要有两种：一是盘式安装法。配备功率为0.1~0.15千瓦/，将曝气管固定在用钢筋（直径为4~6毫米）做成的盘框上，曝气管盘的总长度15~20米，安装3~4只/；曝气管盘总长度30米，装2~3只/，并固定在离池底10~20厘米处。二是条式安装法。配备功率为0.1千瓦/，曝气管总长度为60米左右，管间距为10米左右，高低相差不超过10厘米，并固定在离池底15~20厘米处。微孔增氧设备的安装应于3月底前完成。

There are two main methods of installation: one is disc installation. Equipped with a power of 0.1~0.15 kW/mu, the aeration pipe is fixed on the tray frame made of steel bars (4~6 mm in diameter), the total length of the aeration pipe tray is 15~20 meters, and 3~4 pieces/mu are installed; The total length of the aeration pipe reel is 30 meters, 2~3 pieces/mu, and fixed at 10~20 cm from the bottom of the tank. The second is the strip installation method. The equipped power is 0.1 kW/mu, the total length of the aeration pipe is about 60 meters, the pipe spacing is about 10 meters, and the height difference is not more than 10 cm, and it is fixed at 15~20 cm from the bottom of the tank. The installation of microporous oxygen enrichment equipment should be completed before the end of March.

使用方法

usage method

根据水体溶氧变化的规律，确定开机增氧的时间和时段。一般4~5月，阴雨天半夜开机；6~10月下午开机2~3小时，日出前后开机2~3小时，连续阴雨或低压天气，夜间21：00~22：00开机，持续到第2天中午；养殖后期，勤开机，促进水产养殖对象生长。有条件的进行溶氧检测，适时开机，以保证水体溶氧在6~8毫克/升为佳。

According to the law of dissolved oxygen change in the water body, determine the time and time period of starting up to increase oxygen. Generally from April to May, the machine is turned on at midnight in rainy days; From June to October, the machine is turned on for 2 to 3 hours in the afternoon, and 2 to 3 hours before and after sunrise. In rainy or low pressure weather, the machine is turned on from 21:00 to 22:00 at night, and lasts until noon of the next day; At the later stage of aquaculture, the machine should be turned on frequently to promote the growth of aquaculture objects. Conduct dissolved oxygen detection if conditions permit, and turn on the machine at the right time to ensure that the dissolved oxygen in the water is 6~8 mg/L.

注意事项

matters needing attention

主机在设置安装时应注意通风、散热、遮阳及防淋。

When setting and installing the host, pay attention to ventilation, heat dissipation, sunshade and rain-proof.

曝气管（盘）安装应保持在同一水平面，以利供气增氧均衡。微孔增氧设备安装结束后，应经常开机使用，防止微孔堵塞。每年养殖周期结束后，应及时清洗。

The installation of aeration pipe (tray) shall be kept at the same level to facilitate the balance of air supply and oxygen increase. After the installation of microporous oxygen enrichment equipment, it should be started frequently to prevent microporous plugging. After the end of the annual breeding cycle, it should be cleaned in time.