The correct installation of the vortex flow meter reduces the loss in use

Abstract: The correct installation of the vortex flowmeter to reduce the loss in use information is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. 1. The vortex flowmeter can only measure in one direction. When installing, pay attention to ensure that the flow direction of the medium is the same as the direction indicated by the arrow of the flowmeter. 2. The ideal installation method of the vortex flowmeter is vertical installation, and the medium passes through the flowmeter from bottom to top, that is, the flowmeter is installed vertically. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the correct installation of the vortex flowmeter to reduce the loss in use. 1. The vortex flowmeter can only measure in one direction. When installing, pay attention to ensure that the flow direction of the medium is the same as the direction indicated by the arrow of the flowmeter. 2. The ideal installation method of the vortex flowmeter is vertical installation, the medium passes through the flowmeter from bottom to top, that is, the flowmeter is installed on the vertical pipeline, and the flow direction is from bottom to top. 3. When installing horizontally, the flowmeter must be installed in the high pressure area of ​​the entire system, and the corresponding outlet pressure must be guaranteed. Do not install it at the highest point of the pipeline, because the highest point often accumulates gas, the pipeline is not full, and the outlet cannot be directly emptied. 4. When measuring high temperature fluid, try to use vertical installation method. If it has to be installed horizontally, please install the transmitter part of the flowmeter vertically downward, or install it horizontally to avoid excessive temperature. And pay attention to the air flow or ventilation at the installation location. 5. There should be a long straight pipe section on the upstream and downstream sides of the vortex flow sensor, and the length varies according to different pipeline conditions. The upstream of the sensor should try to avoid installing a regulating valve or a half-open valve. If a valve is indeed installed, the upstream straight pipe section should be There should be an equal diameter of not less than 50D, and there should be a straight pipe section of equal diameter not less than 5D downstream. 6. When installing, note that the diameter of the pipe should be slightly larger than or equal to the inner diameter of the instrument. 7. When using the sealing ring, pay attention that the inner diameter of the sealing ring should be slightly larger than or equal to the inner diameter of the instrument, and the center of the sealing ring is located in the center of the pipeline. 8. When the instrument is electrically connected, attention must be paid to the sealing of the inlet hole. The corresponding sealing interface must be selected according to the instrument cable entry model and installed correctly and tightly. One of the most common reasons for instrument damage is lack of sealing joints, or sloppy installation, which fails to achieve the sealing effect. Can the vortex flowmeter be reduced in diameter during installation? How to do the installation of reducing pipe? Let's introduce it in detail: First of all, it should be pointed out that the traditional reducing pipe can be reduced in diameter and matched with a smaller diameter flowmeter to achieve the purpose of measuring small flow, but this method cannot expand the range of the instrument ratio, because it does not change the flow velocity distribution state of the pipeline. We know that the theory and derivation of the vortex flowmeter are based on the infinite uniform flow field, but in the actual closed circular tube, it is a non-uniform flow field, and the flow velocity distribution in the cross section is a rotating paraboloid, although the selection is reasonable The cylindrical shape makes the flow velocity distribution of the arcuate surfaces on both sides of the cylinder uniform, but in fact, the influence of the flow velocity distribution of the rotating paraboloid on the process pipeline is objective. Experiments show that when the flow rate is relatively large, the influence is small, or the influence is within the allowable range; but as the flow rate decreases, the influence becomes larger and larger. From a large amount of calibration data, the instrument constant always increases with The flow decreases and increases. This shows that the flow rate at the sampling point is increasingly different from the average flow rate. After the variable diameter rectifier is used, since the flow velocity of the constricted section is gradually increasing, the increase of the flow velocity at each point on the section is not the same. The traditional fluid rectifier has matured after long-term research and practice. It generally uses a barrier to separate the flow channel to adjust the velocity distribution in the pipeline to achieve the purpose of rectification; this type of rectifier is mainly used in laboratories and flow calibration systems. . However, this method is easy to cause dirt blockage and increase resistance loss, so it is rarely used in industrial pipelines. Due to its unique performance, vortex flowmeters have always been valued by people and have been widely used, but there are still two problems that plague people: *, one of the main features of vortex flowmeters is a wide range, generally At about 10:1, it should be said that such a wide measurement range should be a relatively good performance, but in practical industrial applications, the maximum flow rate is much lower than the upper limit value of the instrument, and the minimum flow rate is often lower than the lower limit value of the instrument , Some instruments often work near the lower limit flow, resulting in a decrease in the measurement accuracy of the instrument. At this time, the signal is weak and the anti-interference ability of the instrument is also reduced. Second, the flow field is distorted due to the interference of the obstructions in the upstream pipeline of the instrument, which affects the normal dislodgement of the vortex. In order to overcome the disturbance of the flow field, a long straight pipe (generally 15 to 40 times the length of the inner diameter of the process pipe) needs to be installed in front of the instrument, which is difficult to meet in the actual field. In order to measure small flow, people often use the traditional reducer tube with the inner cavity shape as a round table.The flow rate at the measurement point is increased by reducing the diameter. Make the vortex flowmeter work within the normal flow rate range, but this way of reducing the diameter, the structure size is large (generally the length is 3 to 5 times the inner diameter of the process pipe). A large number of rotating flow clusters are generated, which increases the local resistance loss and distorts the flow field. Therefore, a straight pipe with a length greater than 15 times the inner diameter of the process pipe must be installed between the reducing pipe and the instrument for rectification, and the resistance loss along the process is increased. This method increases the construction cost and brings inconvenience to processing and installation. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The correct installation of vortex flowmeter to reduce the loss in use'

Beijing Sincerity Automatic Equipment Co., Ltd promises that we will manufature our products in accordance with the strictest quality standards.

Beijing Sincerity Automatic Equipment Co., Ltd plans to produce and execute four marketing seminars, one per quarter, to help business owners see success by sharing important growth strategies and hosting interactive workshops.

People tend to want what they perceive they cannot have. Making Sincerity seems exclusive or as if it will go out of stock if they don't act quickly often makes it more enticing to the consumer and increases the likelihood that they will buy in.

Beijing Sincerity Automatic Equipment Co., Ltd provides innovative technology and prompts our customers to know the development of our producing mass flow meter.