I want to know what aspects need to be paid attention to when selecting Ruckus gas turbine flowmeter

1. Accuracy level: not the smaller the better, the most important thing is to choose the right one according to the actual situation!

2. Flow range: For the intermittent working occasions where the actual running time of the instrument does not exceed 8 hours per day, the multiple of the maximum flow rate when actually used is selected as the upper limit of the flow range; For the continuous working occasions where the actual operation time of the daily instrument is not less than 8 hours, the times of the maximum flow rate during actual use are selected as the upper limit of the flow range. The lower limit of the flow rate of the meter is suitable for the times of the minimum flow rate actually used.

3. Density of gas: The influence on the physical properties of the gas turbine flowmeter and the fluid is mainly the density of the gas, which has a greater impact on the instrument coefficient, and is mainly in the low flow area. If the gas density changes frequently, the flow coefficient of the flow meter should be corrected.

4. Pressure loss: try to choose a turbine flowmeter with small pressure loss.

5. Structural type: (1) The internal structure should be a thrust reverser turbine flowmeter. 2) Select according to the pipe connection method. (3) Selection according to environmental conditions.

6. Bearings: The bearings of the turbine flowmeter are generally made of tungsten carbide, polytetrafluoroethylene and carbon graphite. Tungsten carbide material should be used for natural gas metering instrument bearings.

The above are the main aspects to consider when choosing a model.

Due to the wide variety of turbine flowmeter types and specifications, especially the difference in product quality of different manufacturers, the relevant technical standards and other information of the manufacturer and the product should be collected as much as possible when selecting the model, and the decision should be made after repeated investigation and comparison.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

In the consultation we received a variety of instrument products, the proportion of consultation on selection is very high, indeed, industrial instruments seem simple, if you talk in depth, there is still some difficulty, generally do not have enough professional knowledge or experience of friends, it is difficult to quickly and effectively choose a suitable instrument for yourself, spend a lot of time, energy, still choose the wrong situation is a lot, in order to help you avoid detours, today we take the turbine flowmeter as an example, sorted out several important dimensions that will be used in the selection, As long as you choose around these factors, you can quickly find the right turbine flow meter.

Accuracy. The use environment of turbine flowmeter generally has higher requirements for measurement accuracy, whether it is to measure gases or some low-temperature liquids. Therefore, a good turbine flowmeter must meet the accuracy standard, otherwise it will not be able to meet the required flow measurement level.

Stable performance. In addition to accurate measurement, the turbine flowmeter should also have stable performance, which can meet the needs of long-term measurement, and is not easily affected by external factors, and can work normally in some harsh environments.

Fast response. Turbine flow meters must have a fast response capability to ensure that measurements can be completed in a short time, as the flow rate of high-speed fluids is sometimes measured. Therefore, the response time of the turbine flowmeter is required to be fast enough, so that the staff can quickly grasp the flow situation and control the flow.

Multiple connection methods.

The use environment is different, the installation environment may be different, which requires the turbine flowmeter to have a variety of connections to improve the adaptability, the main connection methods of the turbine flowmeter are voltaic flange connection, threaded connection, direct connection, etc., which can be selected according to their own needs.

Measuring range. The accuracy of the turbine flowmeter has a certain relationship with the flow range, and it can be flexibly selected according to the need. If you want to measure a small flow range, you can choose some turbine flowmeters with high accuracy, and if you want to have a large flow range, you can choose some turbine flowmeters with a general slow hall tank.

I'm doing the flowmeter, about the gas turbine flowmeter, when I use it.

1. Before the flowmeter is loaded into the pipeline, tear off the adhesive tape at the inlet and outlet of the flange, and use the blowing method to check whether the impeller rotates flexibly and smoothly.

2. Before the installation of the flowmeter, especially when it is installed on a new pipeline or a repaired pipeline, the pipeline should be cleaned first to remove all slag, rust and other pipeline debris.

3. After the hydrostatic test of the pipeline, any liquid left in the pipeline will damage the internal parts of the turbine flow meter. If hydrostatic testing is necessary, the turbine flowmeter must be replaced with a pipe section to ensure that no liquid remains in the upstream line of the turbine flowmeter after the hydrostatic test.

4. The flowmeter should be installed horizontally. Flowmeters with lubrication systems should be installed with the opening of the lubrication bottle facing upwards. The nominal diameter DN 200 gas turbine flowmeter can be mounted vertically. When installing and using, the airflow direction should be from top to bottom.

5. In any case, a straight pipe section with the same nominal diameter as the nominal diameter of the flowmeter should be installed in the upstream of the turbine flowmeter, and the length is required to be 2DN; At the same time, a straight or elbow of the same nominal diameter as the flowmeter must be installed downstream, and its total length of 2dn is required.

6. The opening angle of the tapering tube or the gradual expansion tube upstream of the inlet pipe of the gas turbine flowmeter should not exceed 30. In order to ensure the gas policy transmission and facilitate the maintenance of the flow meter, a bypass pipeline should be set up on the flow meter installation pipeline.

7. The gas turbine flowmeter should be pressurized and started slowly, and the shock load of the valve that opens quickly usually damages the impeller.

8. If you need to do welding work on the pipeline near the turbine flowmeter, the turbine flowmeter must be dismantled. Otherwise, the perineal duct temperature is too high and the flow meter is permanently damaged.

9. Install the gas turbine flow meter, pay attention to make the gas flow direction consistent with the direction pointed by the arrow on the case, the installation error will lead to the destruction of the turbine flow meter.

10 The pipeline must be free of vibration, the air flow in the pipeline can not have large pulsations and impurities, no dust and liquid, foreign substances entering the pipeline will seriously damage the turbine flowmeter, when it is expected that there may be foreign substances in the gas flow that damage the flowmeter, it is recommended to install a filter in the upstream pipeline of the turbine flowmeter.

11 For gas turbine flowmeters installed outdoors, appropriate protection measures should be provided for them in order to protect them from weather.

12. It is suggested that the actual flow rate of the gas turbine flowmeter should be within the range of 20%-80% of the maximum rated flow rate of the flowmeter. The gas turbine flowmeter allows a short overload, but the actual maximum flow cannot exceed 20% of the maximum allowable flow rate of the gas turbine flowmeter, and the duration cannot exceed half an hour.

13. When installing the flowmeter, it is necessary to ensure that the connection between the inlet and outlet of the turbine flowmeter is coaxially aligned, and the bolt force is uniform, so as not to affect the sealing effect. In order to obtain accurate measurement results, it is important to ensure that no seals protrude from the flange into the pipeline.

Finally, in daily use, the gas turbine is equipped with a filter, and the frequent failure is that dirty debris is wrapped around the turbine blades, which must be cleaned frequently.

I don't know what to maintain, and the use of it is not to exceed the range, and it is best to use it in the range of 30-80.

Xuner Instrument will answer for you:

The daily maintenance and use of gas turbine flowmeter is very important, different gas turbine flowmeter has different maintenance and use methods, it is recommended that it can be maintained and used in accordance with the requirements on the product manual attached with it in its use and maintenance.

The first point is to regularly clean the turbine flowmeter body, the main thing is to disassemble the rotating impeller of the turbine for cleaning, here is a small trick at the water inlet of the meter body, there is an O-shaped steel wire at the water inlet of the meter body, and the impeller can be directly removed for cleaning;

The second point is that if the environment of some magazines of gas has to be measured by a turbine flowmeter, then a filter screen must be installed in front of the air inlet, and the filter on the filter screen must be cleaned regularly to ensure the smooth flow of gas;

The third point is that when the use time is about to reach the end of the warranty period, remember to repair it anyway, mainly to recalibrate, and debug the sensitivity test of the meter head module and sensor.