Steam flow meter can not measure the cause analysis - Database & Sql Blog Articles

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A steam boiler at the company has capacities of 4 tons and 2 tons each, and the main steam pipe has a diameter of DN150. A DN125 vortex flowmeter was installed on the main pipe, but it is not displaying the flow rate. After contacting the manufacturer, they mentioned that the steam flow is too small to reach the minimum requirement for a DN125 meter. As a result, they recommended replacing it with an 80mm diameter vortex flowmeter.

However, there is concern about whether reducing the pipe diameter from DN150 to DN80 could affect the steam supply in the workshop. The user is asking if it's possible to change the flowmeter to a DN80 size.

Based on the situation described by the user, we need to first clarify a few key points:

1. When selecting a vortex steam flowmeter, the user must provide accurate steam parameters such as hourly steam consumption, temperature, and pipeline pressure. These details help the manufacturer recommend the most suitable model for the application.

2. If the user increases the air supply or manually adjusts the flowmeter, and the reading changes accordingly, it indicates that the flowmeter is functioning properly.

3. One possible cause of the issue is incorrect selection. The user’s provided parameters may not be precise enough, leading to a mismatch between the selected flowmeter and the actual pipeline conditions.

4. Another reason could be that the amount of steam produced does not match the actual consumption. It’s important to estimate the steam usage of downstream equipment and check if it falls within the operating range of the vortex flowmeter.

5. If it’s confirmed that the steam flow is indeed insufficient, then reducing the pipe diameter, as suggested by the manufacturer, is a valid approach. However, this should only be done if the required straight pipe sections before and after the flowmeter are maintained. In such cases, the measurement error will be minimal, and the flowmeter can still perform accurately.

Our company offers one-on-one support from experienced technicians to guide you through the selection, installation, operation, and after-sales service of the flowmeter. We are committed to ensuring accurate and reliable measurements tailored to your specific needs.