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Turbine flowmeters are speed-type flowmeters, and some people call this type of flowmeter an impeller-type flowmeter. The impeller flowmeter uses the relationship between the rotational angular velocity of the impeller placed in the fluid and the flow velocity of the fluid. By measuring the rotational speed of the impeller to reflect the volumetric flow volume of the fluid passing through the pipeline, it is a relatively mature and high-accuracy instrument in current flowmeters. one. There are turbine flowmeters, split-flow rotor-type flowmeters, water meters, and impeller anemometers. Turbine flowmeters are the main varieties.
The turbine flowmeter consists of a turbine flow sensor and a flow display secondary instrument (flow totalizer) that can measure instantaneous flow and cumulative flow. The sensor outputs a pulse frequency signal proportional to the flow rate. This signal is transmitted to the display instrument over long distances via the transmission line, facilitating accumulation and display. In addition, the pulse frequency signal output by the sensor can be used alone with a computer. The computer replaces the flow display instrument to achieve density or temperature and pressure compensation, and the mass flow or fluid volume flow is displayed.
Turbine flowmeters typically consist of the following typical five parts:
1. Body
The body of the watch body is generally steel or cast iron, and its ends are flanged. Small-caliber gauges also have threaded connections.
2. Rectifier
The rectifier is used to make the fluid flow in the turbine flow meter in a regular state, thereby eliminating the unfavorable effects of disturbances on metering. High measurement accuracy.
3. Measured components
The turbine has precision machined blades, which together with a set of reduction gears and bearings form a measuring assembly. The two high-precision stainless steel permanent self-lubricating bearings of the helium turbine guarantee a long service life of the assembly. Turbine flowmeters can also be lubricated with external lubricating oil pumps, but care must be taken not to overshoot them.
4. Magnetically coupled transmission device
The device separates the counter part in the atmosphere from the gas to be measured and transfers the rotation of the measuring assembly to the counter.
5. counter
The counter panel has the following important information:
(1) Maximum operating temperature and pressure:
(2) Metering and minimum and maximum flow ratings
(3) Product Model and Number
(4) Explosion-proof grades and signs
(5) Equivalent to the fluid corresponding to the low frequency or high frequency pulse and the connection mode.
Backpacking Tent Capacity
Backpacking tents are categorized by capacity: from 1- to 4-person models. Most tent names include a
number for the capacity: Outerlead Dome Tent 2, for example.
To save weight, backpacking tent interiors are [cozy." No industry standard defines per-person
dimensions, so a 2-person tent size can vary from brand to brand. And ultralight models are
likely to be extra compact.
If you`re larger than average, or you simply crave a little more space, one option is to look at
tents designated one person larger than your group. Alternatively, you can hunt for a tent
that`s one or two inches wider or longer than average. Some offer clues in the name: adding
a [plus," for example. Always compare the exact dimensions of the tents you`re considering,
though, if having more floor space is important to you.
Backpacking Tent Seasonality
Your main choice is between a 3-season and a 4-season tent. The vast majority of hikers,
especially newcomers to the backcountry, will choose a three-season tent. Because worst-case
weather scenarios won`t be the same for every trip, frequent backpackers sometimes
choose to own more than one tent.
Our products are of high quality, easy to carry, available in a variety of sizes, and adjustable in structure
to provide you with a great experience. We provide product pictures and basic parameters of
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General composition and main five parts of turbine flowmeter
First, the composition of the turbine flow meter