Selection and installation of steam flowmeter

In the future application of steam flowmeter, it will greatly reduce the situation that metrological verification is prohibited or cannot be applied due to the error of type selection. Please pay attention to the following points:

Selection and installation of steam flowmeter

1. The enterprise shall install the dashboard with high accuracy of measurement verification and wireless meter reading function in the car to prevent underrecording and the difficulty of underrecording. It can also keep track of the changes of actual pressure, temperature and flow of each customer at any time and improve economic benefits.

2. The scope of application is different, and the level of dashboard in the car should be different.Important steam production machinery equipment and important use of the automobile company's vehicle dashboard should choose with automatic density compensation meter, very is used for foreign trade instruments and meters should strive for accuracy, and should be on time measurement verification.Internal carry-over cost of the dashboard in the car such as assembly shop, canteen and other side of the company, can use the time constant compensation of instrumentation, in order to reduce the cost.The same can go beyond the statistical balance of electricity sources.

3. Install the flowmeter below DN200mm and install the vortex flowmeter below 300℃ when the steam temperature is used;The steam flowmeter with the size of DN200mm and the temperature of 300℃ should be installed with differential pressure flowmeter.The nozzle selection is beneficial to energy saving and environmental protection.

4. The selection of vehicle dashboard agents should be based on whether there are metrological verification machines and equipment. Without metrological verification plants, the accuracy and efficiency of the vehicle dashboard cannot be guaranteed.

5. In order to ensure the accuracy of measurement verification, temperature and pressure instruments should be added to the configuration of the vehicle dashboard for automatic density compensation.

6. Differential pressure flowmeter shall be installed for total steam volume of heat treatment furnace of power station.

7. Choose the specifications of the dashboard in the car according to the flow specifications, not the specifications of the dashboard in the car according to the tube specifications.Because steam pipe considering to minimize pipe resistance generally choose the pipe diameter is large;In order to avoid a small amount of traffic to remember, as far as possible to choose the appropriate vehicle dashboard specifications.Usually, small is big.

In other words, in the purchase of steam flowmeters do not only fully consider the price, according to the company's detailed situation, choose the best employment choice;It is necessary to focus on the local standards of the principle of distance, because steam flow measurement is a kind of cross metrological verification, which inevitably leads to some difficulties and mechanical failure, in order to ensure all the normal work of metrological verification, failure testing at any time, the purchase of the principle of distance steam flowmeter can avoid a lot of trouble.

Installation and selection of separate rotor steam flowmeter

Customers in the purchase of steam flowmeter goods, the beginning also want to grasp the type of steam flowmeter goods and distinguishing characteristics, according to their own precise measurement of the provisions to choose suitable for their own goods, today we will work together to grasp the installation and selection of separated rotor steam flowmeter goods.

First, separate rotor steam flowmeter installation specification is to install as far as possible in the horizontal pipeline.And the indicator of the flowmeter is as far as possible in the lower part of the pipeline, so that the pipeline can not be close to the ground as far as possible for the installation of the meter indicator to leave the interior space design;

Second, the vertical axis of the separation rotor steam flowmeter and the flatness of the ground should be less than 5 degrees, otherwise it is easy to damage the accuracy of accurate measurement. Before the steam inlet of the flowmeter, there should be more than 10D transfer section, and after the entrance, it is better to have more than 5D transfer section;

Third, separation rotor steam flowmeter pipe diameter should be like the diameter of the flow meter, when the practical application of pipe diameter and flow meter class of inconsistency, in addition to the international trade the up and down or so for the steam flowmeter installation must be up and down or so handover period, according to the actual pipe diameter modified enlarge shrinks pipe butt connection;

Fourth, the separation rotor steam flowmeter inlet accurate measurement of the transfer section, should be installed pressure gauge is conducive to detect through the pipeline steam working pressure to how much money, the flowmeter should be installed below the steam trap, conducive to eliminate high performance liquid phase water;

Fifth, separation after installation in rotor steam flowmeter, the flow indicator watches watchcase strap house toward the sometimes is not conducive to read value, can now use the indicator and the shock absorber connecting bolts, the indicator rotated 90 degrees or 180 degrees, indicator watches watchcase strap of the location of the house toward the read values for easily;

Sixth, separation rotor steam flowmeter must remind everybody is separation rotor before running the steam flowmeter, as far as possible will shock absorber inner cavity filling into absorbing liquid, water injection hole and on the shock absorber can be discharged air flow and the bolts on the plug-hole remove import suspension liquid, with plug-hole discharged, and yellow rust and waste liquid, the then tighten the bolts on the plughole, import suspension liquid to spill again after 30 seconds when the liquid level monitor is always the same, the water injection hole and discharged air flow on the foot screw can be;

7, every time when the steam, should slowly open flowmeter line up and down or so stop valve, prevents too much harm the flowmeter, instantaneous velocity flow indicator when steam flowmeter whose hands are in a stable rotation, the flowmeter has in all normal work at the moment. For metrological verification accuracy can often check the working pressure and indicator pressure feet of pre-tender estimate are consistent, agree without appropriate adjustments can be carried out in order to improve the calibration accuracy. Meter can also be based on the artificial customer service telephone countdown to calculate the instantaneous velocity of flow;

Eighth, in a word, the shock absorbing liquid is both the rust preventing liquid and the automobile antifreeze liquid. The rust preventing liquid is the scale preventing agent in the heat treatment furnace with 0.5ml, the oxygen removing agent with 0.5ml and the chemical substance of cold water.In the cold winter such as flowmeter terminal use should pay attention to add the car antifreeze, the car antifreeze is about 50% ethylene glycol water solution, can also be used in the car antifreeze instead.

Porcelain city Shanghai instruments co., LTD., is the world's leading instrument manufacturers, technology has always been the cornerstone of our company to survive, but we always use direct marketing, cancel the agent, so we can keep in close contact with customers, more important is to ensure that after-sales, delivery, price, etc., really do to ensure that the interests of the customer.