Intelligent electromagnetic flowmeter is developed based on the standard manufacturing system. Changzhou Chengfeng Instrument's advanced design concept ensures the high precision and high reliability of the product. Compared with the old-fashioned electromagnetic flowmeter, it has high measurement accuracy and reliability. Strong, stable, functional, long life and other advantages.
An important part of the electromagnetic flowmeter, the grounding part, is important today. Because the electromagnetic signal of the electromagnetic flowmeter itself is a small signal, the normal signal is flushed immediately after encountering interference. Grounding can avoid the potential of the fluid flushing in the pipeline, and at the same time, the zero of the measuring potential and the zero of the medium are the same, so as to avoid the error of the poor. It is equipped with a grounding ring, and then the grounding ring is connected to the pipeline. If it is lined, also ground the electrode.
The electromagnetic flowmeter signal is weak, only 2.5~8mv at full scale, and only a few microvolts when the flow rate is very small. A slight disturbance from the outside can affect the measurement accuracy. Therefore, the transmitter housing, shielded wire, measuring tube and transmitter The pipeline should be grounded, and the grounding point must be set separately. It must not be connected to the common ground or the upper and lower water pipelines such as motors and electrical appliances. The converter part has been grounded through the cable, so no grounding is required to prevent interference from introducing different ground potentials.
How to choose the electromagnetic flowmeter grounding ring? At present, electromagnetic flowmeters are mainly designed for the water metering trade of water supply companies and have the ability to prevent water, corrosion, interference, and lightning. There are no moving parts in the pipeline of the electromagnetic flowmeter, no flow blocking parts, and there is almost no additional pressure loss in the measurement. Regarding the selection of the grounding ring, the following is a brief introduction.
1. Protection ring: F46 lining sensor should use protective grounding ring, fixed on the flange by screws to protect the lining flange from damage.
2. The grounding ring is made of stainless steel 1Cr18Ni9Ti. Special requirements can be specified when ordering.
3. Standard grounding ring: In the plastic and the cathodic protection pipeline that protects against electrolytic corrosion and the inner and outer walls are insulated, grounding rings must be installed on both sides of the sensor.
4. With neck protection ring: If the medium wear is strong, should use a neck protection ring to protect the lining.
The use of electromagnetic flowmeter to measure the volumetric flow of liquid is not affected by the temperature, pressure, density, visغير مجاز مي باشدity and other parameters of the liquid, so no correction calculation or parameter compensation is needed. Therefore, electromagnetic flowmeters are widely used in chemical, petroleum, chemical fiber, cement manufacturing and other industrial production departments.
Rear Bumper Injection Mould
The plastic bumper is made of plastics, mainly polyester and polypropylene, which are made by injection molding. For example, the bumper of Peugeot 405 car is made of polyester and made by reaction injection molding. Volkswagen audi 100 Golf Shanghai Santana Tianjin xiali model car bumpers, adopted polypropylene materials made from injection molding in Abroad have a called polyethylene carbon ester plastic, seeping into alloy composition, using the method of metal injection molding processing of bumper not only has high strength, rigid, also has the advantages of can welding and coating performance is good, in the amount of cars more and more.
Bumper has safety protection decoration vehicle and improve the aerodynamic characteristics of the vehicle and other functions from the safety point of view, the car can play a buffer role in low-speed collision accident, protect the front and rear body; In the event of an accident with pedestrians, it can play a certain role in protecting pedestrians. From the appearance, it is decorative and becomes an important part to decorate the appearance of cars. At the same time, the car bumper has a certain aerodynamic effect at the same time, in order to reduce the car side collision accident on the occupant of the injury, in the car is usually installed with a door bumper, in order to enhance the door impact force of the collision this method is practical and simple, the body structure of the little change, has been widely used As early as 1993, Honda Accord at the Shenzhen International Automobile Exhibition cut a part of the door to expose the bumper to show the audience, to show its good safety performance The installation of the door bumper is a number of high-strength steel beams horizontally or diagonally placed in the door panel of each door, playing the role of the front and rear bumper, so that the whole car has bumper protection around the front and rear, forming a copper wall and iron wall, so that the car occupant has a maximum safety area Of course, the installation of such door bumpers will undoubtedly increase some غير مجاز مي باشدts for car manufacturers, but for car occupants, safety and security will increase a lot.
Black Car Bumper,Black Plastic Bumper Mould,Best Bumper Black Mould,Plastic Bumper Black Mould
Taizhou Huangyan Xingtai Plastic Mould Co., Ltd. , https://www.xingtaimould.com
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