| Vencore
Flowmeter |
| ■
Special structure
|
|
| Vencore
flowmeter is a new type differential pressure (DP) |
| flowmeter. |
| It
has almost same fundamental with other differential pressure |
| (DP)
flowmeters, but special design. |
| It
adopted to two kinds of differential Primary Elements in |
| structure
design. It will become high precision multifunctional |
| differential
pressure flowmeter matched with multivariable |
| transmitter. |
| Vencore
flowmeter is long-term precision, good repeatability, small |
| limited
for installation, endurance, wide flow rang compared to other |
| ordinary
differential pressure (DP) flowmeter. |
| The
commutation function of Venturi-Nozzle (1st commutation) and |
| Vencore(2nd
commutation ) also make it become a kind of excellent |
| new
differential pressure (DP) flowmeter with unique performance. |
| The
medium can be water, steam, air, natural gas, nitrogen, coal |
| gas
and organic gas, etc. |
| Operation
temperature up to 700℃，maximal pressure up to 32Mpa |
| if
choose special structure material. |
| Vencore
flowmeter can get high differential pressure, wide range |
| rate(30:1),
no special requirement for straight pipe. |
| |
■
Operation theory
Venturi-Nozzle and Vencore is the basic
part of Vencore flowmeter.
Venturi-Nozzle accelerate the flowmeter
medium, also commutate and regulate the velocity of flow.
Vencore is in the laryngeal of Venturi-Nozzle,
it will test the velocity of flow and commutate it for the 2nd time.
The throttle part of Vencore can test big
differential pressure and stable flow signal because the velocity
of flow in the |
| laryngeal
is increased and stable. |
| |
■
No special requirement for straight pipe
Vencore flowmeter can be used in extremely
straight run pipe configurations
After contracted, accelerated and commutated
by the inlet entrance, the flow medium commutated by the Vencore for
|
| the
2nd time. No need for straight pipe because the profile of flow section
is stabled and linearizes. |
| Passed
the laryngeal of Vencore, flow medium will come into diffuse sect.
After fully diffused, it will arrive at exit. No |
| need
straight pipe because the disturbance of the flow change will not
affect it. |
■
Features
Measure for low velocity flow
High accuracy:±0.2%
Repeatability:±0.1%
Turn-down ratio：30：1
No special requirement for straight pipe
Low pressure loss
Self cleaning, adapted to dirty medium
For mass or volume flow measure |
| Every
Vencore flowmeter should be tested by itself. The test for adjustment
of modulus C is usually in the Standard |
| Flow
Facilities of factory or national norm independent lab. Repeatability
of Vencore flowmeter is 0.1% when Reynolds |
|
number >8000. |
| Vencorebar
Flowmeter |
| ■
Special structure
Vencorebar flowmeter is a new type differential
pressure (DP)
|
|
| flowmeter. |
| It
adopts two kinds of differential throttle components in |
| structure
design. It will become high precision multifunctional |
| differential
pressure flowmeter matched with multi parameter |
| transmitter. |
| Vencorebar
flowmeter can get high differential pressure, wide range |
| rate
(20:1), no special requirement for straight pipe. |
| |
■
Operation theory
Venturi-Nozzle and Annubar is the basic
part of Vencorebar flowmeter.
Venturi-Nozzle accelerate the flowmeter
medium, also commutate and regulate the velocity of flow.
Annubar is in the laryngeal of Venturi-Nozzle,
it will test the velocity of flow and commutate it.
Annubar can test big differential pressure
and stable flow signal because the velocity of flow in the laryngeal
is
|
| increased
and stable. |
| |
■
No special requirement for straight pipe
Vencorebar flowmeter can be used in extremely
straight run pipe configurations
After accelerated and commutated by the inlet
entrance, the flow medium commutated by the Vencore. No need for |
| straight
pipe because the profile of flow section is stabled and linearizes. |
| Passed
the laryngeal of Vencore, flow medium will come into diffuse sect.
After fully diffused, it will arrive at exit. No |
| need
straight pipe because the disturbance of the flow change will not
affect it. |
| |
■
Features
Measure for low velocity flow
High accuracy:±0.75%
High repeatability:±0.1%
Turn-down ratio：20：1
No special requirement for straight pipe
Low pressure loss
For mass or volume flow measure |
| |
