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1. Method for regulating the flow rate of cooling water for double end mechanical seals
The core method for regulating the flow rate of cooling water for double end mechanical seals is to control the pressure difference between the inlet and outlet through a regulating valve, and stabilize the flow rate within the required range of the equipment (usually 1.5-3 m ³/h). 1. Adjustment method: Cooling water flow regulation is mainly achieved through pipeline valves. The specific operation method is as follows: • Adjusting the inlet valve: directly controlling the flow rate by closing or opening the valve of the sealed cooling water inlet pipeline, which is the most commonly used and direct method. • Adjusting the outlet valve: indirectly adjusting the system pressure by controlling the opening of the outlet valve, affecting the flow rate, usually as an auxiliary means of detailed adjustment. • Using flow meter monitoring: while adjusting the valve, observe the rotor flow meter or electromagnetic flow meter installed in the pipeline, and adjust the real-time flow value to the range required by the equipment nameplate or instruction manual. 2 During the process of adjusting key control parameters, three core parameters need to be monitored simultaneously to ensure sealing effectiveness and equipment safety: • Flow range of the branch register: The cooling water flow rate required for most double end face seals is between 1.5-3 m ³/h, and the specific value needs to refer to the equipment manufacturers parameters • Inlet pressure: usually required to be 0.1-0.2 MPa higher than the sealing chamber pressure, but not exceeding the maximum pressure limit of the seal • Pressure difference stability: The inlet and outlet p
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2. What do you think are the classifications of liquid flow meters?
Liquid flowmeter is a precision instrument manufactured based on the Karman vortex principle for measuring the steam flow rate of liquids, gases, and liquid flowmeters in sealed pipelines. Due to the sealed detection element inside the detection body, there is no measured medium, and there are no movable parts inside, no on-site maintenance is required. Therefore, it is highly praised by users and widely used in the measurement management and process control of textile printing and dyeing, petroleum, chemical, metallurgical pharmaceutical, thermoelectric, papermaking, and fire protection industries Equipped with on-site display, 3.6V battery power supply, external power supply, and 4-20mA output; remote display can be paired with differential skin secondary instrument LCD Chinese display, and temperature and pressure compensation can also be provided. In
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