With the increasing number of aquaculture species, increasing density, and increasing environmental protection requirements, the threshold for aquaculture has been gradually increased, and the requirements for aquaculture farmers are even higher. Therefore, in this context, aquaculture It is not a simple matter for households to raise fish and shrimp. The aquaculture monitoring system can be an “intimate steward†of aquiculture farmers. Its application can reduce the threshold of aquaculture, help aquaculture farmers change their thinking, change the traditional extensive farming methods, improve the refinement of farming, and increase production. The goal of quality improvement. Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur. According to the connection method, it is divided into three types: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large, and the diameter of the valve stem can be adjusted accordingly. decrease. At the same time, under the action of the medium, this form of valve is also tighter. my country's valve "Three Chemicals" once stipulated that the flow direction of the globe valve should be from top to bottom. When the globe valve is opened, the opening height of the valve disc is 25% to 30% of the nominal diameter. The flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the globe valve should be determined by the stroke of the valve disc. Shut-Off Valve,Shutoff Valve,Automatic Shut Off Valve,Auto Shut Off Valve Jiangsu Qiantu Trading Co., Ltd. , https://www.qiantupump.com
Although the current requirements for aquaculture are high, it is difficult to raise aquaculture, but at the same time, the economic benefits of aquaculture are even more pronounced. First, there are fewer and fewer natural resources, and the standard of living has increased, and people’s demand for aquatic products has increased. The larger, therefore, if aquaculture households can rely on scientific technologies such as aquaculture monitoring systems to produce good aquatic products, it will be inevitable or welcomed by consumers and the market. Therefore, the most important thing at present is how to achieve refined culture. We will continue to improve the aquatic environment of aquaculture and conduct aquaculture in a safe and environmentally friendly manner.
The aquaculture monitoring system can monitor fish pond water quality at any time and at any place. For example, water temperature, pH, and dissolved oxygen are equal to the water quality indicators related to aquaculture health and safety. Therefore, aquaculture farmers can accurately grasp the aquatic environment where aquatic animals grow without going to the site. And through timely adjustment and control measures to be improved, it will be able to create the most suitable water environment for aquaculture product growth, achieve the fastest growth rate, so that the unit water body to obtain a higher yield, and reduce the risk of breeding, reduce the technical management personnel The dependence will reduce the labor intensity of management personnel, reduce energy consumption, and increase production efficiency. For aquaculture farmers, such a management approach is not only safer and easier, so the aquaculture monitoring system is also aptly referred to as “intimate stewardâ€.