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Balance flowmeter

 Balance flowmeter

Jinhu Yijia Instrument Co., Ltd YJPH series Balance flowmeter The traditional throttling device has been greatly improved, which has the remarkable characteristics of balanced rectification. The traditional throttling device has only one flow aperture, which makes the fluid lose its ideal state after throttling; while the balance flowmeter has multiple functional apertures, which can balance and rectify the flow field into ideal fluid as much as possible, so as to give full play to the advantages of differential pressure flowmeter. Balance flowmeter is suitable for almost all fluid measurement, which is a revolution of fluid measurement technology.


Yjph series Balance flowmeter Application range:

Balance flowmeter At present, it is widely used in petroleum, chemical, metallurgy, electric power, natural gas, water treatment and other industries.


Yjph series Balance flowmeter Measurement principle:
 Principle and characteristics of balance flowmeter



Balance flowmeter
It is a revolutionary differential pressure flow meter. Its working principle is the same as other differential pressure flow meters. It is based on the energy conversion principle in the sealed pipeline: in the case of ideal fluid, the flow in the pipeline is proportional to the square root of the differential pressure; the flow in the pipeline can be calculated by measuring the differential pressure value according to Bernoulli equation. The balanced flow sensor is a porous disc throttling rectifier, which is installed on the cross section of the pipe. The size and distribution of each hole are customized based on special formula and test data, called function hole. When the fluid passes through the function hole of the disc, the fluid will be balanced and rectified, and the eddy current will be minimized to form an approximate ideal fluid. The stable differential pressure signal can be obtained through the pressure measuring device. The volume flow rate and mass flow rate can be calculated according to Bernoulli equation.

 

Yjph series Balance flowmeter Product features:

1. The accuracy of measurement is that of standard orifice plate five ten times
two
The flow noise is of the standard orifice plate 1/15
three
The permanent pressure loss is of standard orifice 1/3
four
Pressure recovery is faster than standard orifice plate two times
five
The minimum straight pipe section can be less than 0.51111D 
six
High linearity and good repeatability  
The balanced flow sensor has the characteristics of symmetrical porous structure, which can balance the flow field, reduce the eddy current, vibration and signal noise, greatly improve the stability of the flow field, and improve the linearity compared with the orifice plate five ten The repeatability is improved fifty-four %, for zero point one five %From its comprehensive performance, the balance flowmeter belongs to the high-grade flowmeter.
5:1
When the range ratio is used, the linearity can reach ±0.3333 %;
7:1
When the range ratio is used, the linearity can reach ±0.511 %;
10:1
When the range ratio is used, the linearity can reach ±1.0222  
seven
The requirements of straight pipe section are low  
Because the flow field of balanced flow sensor is stable and the pressure recovery is twice as fast as that of orifice plate, the requirement for straight pipe section is greatly shortened, and the front and rear straight pipe sections are generally front 3D after 1D , the minimum can be less than 0.5D In this way, a large number of straight pipe sections, especially those of special and expensive materials, are omitted.  
eight
Reduce permanent pressure loss  
Compared with the orifice plate under the same measuring conditions, the balance design of porous symmetry reduces the formation of turbulent shear force and eddy current, and reduces the loss of kinetic energy two point five It is a kind of energy-saving instrument, which is worth popularizing.  
nine
It is dirt resistant and not easy to block  
The balanced design of porous symmetry reduces the formation of turbulent shear force and eddy current, thus greatly reducing the formation of stagnant dead zone, ensuring the smooth passage of dirty media through multiple holes, and reducing the chance of fluid holes being blocked.  
10. The orifice plate can be replaced directly  
It has the same use method and shape as the orifice plate, so it can be directly replaced without any changes in piping and related instruments. It is very suitable for changing the orifice plate into a balance flowmeter in the energy metering transformation of the whole plant.  
11. Wide flow measurement range  
According to the test results, we know that: balance the performance of the flowmeter, so that its flow rate can be from the minimum to the sound speed; its minimum Reynolds number can be lower than two hundred The maximum Reynolds number is greater than one hundred and seven β Values are optional zero point two five zero point nine zero  
12. Good long term stability  
Due to the obvious reduction of the turbulent shear force, the direct friction between the medium and the throttling part is greatly reduced β The value remains unchanged for a long time, and the whole instrument has no movable parts, so it can maintain stability for a long time.  
13. It can measure high temperature and high pressure medium  
Like orifice plate and other throttling devices, the working temperature and pressure depend on the material and grade of pipe and flange, and the working temperature can reach eight hundred and fifty The working pressure can reach 42MPa  
14. It can measure the medium of complex working condition  
Because of its special structure design, it has special performance. It can carry out gas-liquid two-phase, various mixed gases (such as gas, biogas, gas, etc.) and various low-temperature gases (such as LNG Liquid nitrogen, liquid oxygen, liquid argon, liquid hydrogen, liquid chlorine, liquefied ethylene, liquefied petroleum gas, etc.), gas-liquid two-phase medium (such as wet gas), slurry, multiphase flow, vibrating water flow, electromagnetic interference medium and two-way flow (because the balance flowmeter is completely symmetrical to the left and right).


Yjph series Balance flowmeter Technical parameters:

1. pipe diameter range: DN15~DN3000

2. accuracy: ±0.3% ±0.5% ±1%

3. requirements for straight pipe section: 0.5D~2D

4. permanent pressure loss 1/3~1/4

5. range ratio: ten one The suitable working condition data can be wider;

6. repeatability: 0.1%

7、 Re Range: 200~107

8、 β Range: 0.25~0.9

9. temperature range: the temperature that metal pipe can bear, up to eight hundred and fifty ℃;

10. Pressure range: the pressure that metal pipe can bear, up to 42MPa

11. Dirt resistance: special design and calculation;

12. Two way flow can be measured.

 

Yjph series Balance flowmeter Product selection:

YJPH

Balance flowmeter

Public path

-XXX

one hundred express DN100

Installation form

pp

Pipe type

HF

Clip on type

FW

Welding type

DF

Double flange type

SP

Square tube type

Nominal pressure

A

0~0.6MPA

B

0~1.0MPA

C

0~1.6MPA

D

0~2.5MPA

E

0~4.0MPA

F

0~6.4MPA

G

0~10MPA

H

0~16MPA

J

0~40MPA

Pipe material

zero

carbon steel

one

three hundred and four stainless steel

two

12CrMOV

three

other

Input signal

A

No output

B

4~20MA

C

RS485 MODBUS

 

Yjph series Balance flowmeter Order notice:

Please provide the following parameters when ordering:

1. Medium: name, composition, state, conductivity or conductivity
2. Maximum, normal and minimum operating temperature
3. Maximum, normal and minimum working pressure
4. Pipe material, inside and outside diameter, minimum, normal and maximum flow
5. Corrosive, abrasive, negative pressure
6. Installation requirements and environment: integrated or split, signal output, communication mode, power supply
7. Installation environment: protection level and explosion-proof requirements


Yjph series Balance flowmeter Quality commitment:

Jinhu Yijia Instrument Co., Ltd. is mainly engaged in electromagnetic flowmeter, vortex flowmeter, orifice flowmeter, magnetic flap level gauge, glass plate level gauge and other products, and provides a one-year warranty for all products. In case of product quality problems (excluding wearing parts or accessories) within one year, they shall be repaired free of charge, and technical support shall be provided free of charge.

Consultation hotline 0517-86936880 15358661880

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