Delta Bar Flow Meter Installation Method and Maintenance Requirements

Abstract: The installation method and maintenance requirements of the Delta Bar flowmeter are provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Abstract: The Delta Bar flowmeter is a plug-in flow measurement instrument. A delta sensor is inserted into the pipeline, when the fluid flows through the sensor, a high pressure distribution area is generated in the upstream direction in front of the sensor, and a low pressure distribution area is generated at the rear. . For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the installation method and maintenance requirements of Deltaba flowmeters for details. The Delta Bar flowmeter is a plug-in flow measurement instrument. A delta sensor is inserted into the pipeline, when the fluid flows through the sensor, a high pressure distribution area is generated in the upstream direction in front of the sensor, and a low pressure distribution area is generated at the rear. This article mainly introduces the installation requirements and maintenance methods of the flowmeter for your reference. Delta Bar flowmeter installation requirements: 1. For the I-type sensor, the detection rod has been welded into a piece of pipeline, and the sensor must be in the direction of fluid flow during installation. It is required that the inner diameter of the process pipeline is the same as the inner diameter of the sensor, or at least the angle between the axis of the sensor and the axis of the pipeline is as zero as possible within the required length of the upstream straight pipe section. For other types of sensors, the detection rod is inserted into the process pipeline. During installation, in addition to the total pressure hole facing the direction of flow velocity, it must be ensured that the sensor detection rod is perpendicular to the axis of the process pipeline, and its allowable position angular pressure deviation. The angle between the center of the total pressure hole of the sensor and the axis of the pipeline should be less than 7°The sensor detection rod is inserted into the bottom along the diameter of the pipe, and its angular deviation is less than 7°The vertical pipeline sensor can be installed at any position along the pipeline circumference 360 ​​on the horizontal plane of the pipeline. The high and low pressure impulse pipes should be on the same plane, as shown in Figure 6(a); when measuring liquid, it should be installed inclined downward; When measuring the vapor of the gas, it should be installed at an upward slope. 2. Since the sensor is based on the velocity area method, the approximate integral theory is used to describe the straight pipe section with more points. distribution equation, and is established under the conditions of a fully developed velocity distribution. Therefore, in order to obtain an ideal distribution, there must be a certain length of straight pipe section serial number before and after the sensor. The flow sensor is installed on the upstream side A and the downstream side B. There are rectifiers and no rectifiers on the same plane and different planes. 1. There is a 90°Elbow or tee 6D7D9D3D; 2. There are two 90 in the same plane°Elbow 8D9D14D3D; 3. There are two 90 in different planes°Elbow 9D19D24D4D; 4. Pipe diameter change (retraction or expansion) 8D8D8D3D; 5. Partially opened gate valve, ball valve or other throttle valve 8D8D8D3D. Note: (1) In the table“D”is the inner diameter of the pipe. (2) In the case of insufficient pipeline section, the upstream should account for 70% of the total length of the pipeline, and the downstream should account for 30%. At this time, a stable indication value can still be given, but the accuracy is reduced. The device that clamps the sensor should ensure no leakage, no looseness, and no displacement. Delta flowmeter maintenance: The sensor of the Deltaba flowmeter should be cleaned regularly when the process pipeline is overhauled. There are many cleaning methods, such as blowing off the accumulated contamination in the detection pipe with air source; Each pressure-taking hole is kept unobstructed. Possible causes of failures and clearing methods: the clearing methods for the causes of the serial number fault phenomenon. 1. No differential pressure signal output: the high and low pressure valve is not opened, open the high and low pressure valve. 2. The high and low pressure balance valve is not tightened: tighten the balance valve 3. The output of the differential pressure signal is too small: there is leakage in the pressure guiding system; search carefully to eliminate leakage. 4. Improper selection of the secondary meter range: reduce the differential pressure Transmitter upper limit value 5. The output of differential pressure signal is too large: improper selection of the secondary meter range, increase the upper limit value of the differential pressure transmitter, block the back pressure hole, clean the uniform velocity pipe, and remove the blockage. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Delta Bar Flow Meter Installation Method and Maintenance Requirements'

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