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『Integrated balance flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. What are the commonly used steam flow meters?
The commonly used steam flow meters are as follows:. The disadvantage is that the installation is cumbersome, the pressure loss is large, and there is a certain measurement error.
2. What is the integrated cultivation mode of water and fertilizer for facility tomato? How to operate? Due to its unique flavor and high yield, tomatoes are widely grown in major vegetable regions in China. The integrated cultivation mode of water and fertilizer for facility tomatoes not only saves water and fertilizer, but also greatly reduces the occurrence of pests and diseases, and improves the quality and yield of tomatoes. At the same time, it also solves the problems of water and fertilizer waste and labor difficulties, and is increasingly favored by vegetable farmers. But compared with the conventional cultivation mode, the integrated cultivation of tomato water and fertilizer requires higher levels of facilities and management. Lets take a look at the integrated cultivation mode of tomato together.
1. Components of Tomato Water Fertilizer Integration
1. Equipment Composition Tomato water fertilizer integration equipment is generally installed by the manufacturer, but as a user, one should also understand the composition and working principle of the equipment.
. The equipment for tomato water fertilizer integration technology generally includes a head hub, a water supply network, drip irrigation (micro sprinkler irrigation), and other parts. When using water fertilizer integration equipment for irrigation and fertilization, irrigation water enters from the inlet, passes through the head hub, mixes fertilizer with water through the fertilization device,_600x400.jpg)
(1) The head hub is a very important component in the entire water fertilizer integrated equipment.
. It is the driving, detection, and control center of the entire system, mainly composed of flow meters, control valves, fertilizer bypass, water purification equipment, etc. Flow meters are used to calculate irrigation water usage, which is commonly known as water meters; Control valves are operating components used to regulate the pressure and flow of irrigation systems, usually installed on the main pipeline and fertilizer bypass pipeline, to control the water and fertilizer volume at once. When fertilizing, open the valve on the fertilizer bypass and the valve on the main pipeline to bring the fertilizer solution into the pipeline. Connect the Venturi fertilizer applicator behind the fertilizer bypass switch, which is made according to the Venturi principle. Simply put, the Venturi principle is to set up a section of pipe in the pipeline that gradually decreases in size and then gradually increases in size. The thinnest part is called the throat, and a thin pipe is connected to the throat. The thin pipe is connected to the solution for fertilizer. When the water flows through this diameter changing pipeline, the flow velocity gradually increases. When it flows through the thinnest throat, the flow velocity is the highest, and the pressure decreases, forming a pressure difference with the previous section. Under the action of atmospheric pressure, the fertilizer solution in the container is carried into the subsequent pipeline through the water flow. The Venturi principle involves a throat with a variable