Flow meter for thermal oil

►Thermal transfer oil: Thermal transfer oil, formerly known as "heat carrier oil" in GB/T 4016-1983 "Terminology for Petroleum Products", is a specialized oil with good thermal stability used for indirect heat transfer. Due to its uniform heating, accurate temperature control, ability to generate high temperatures under low steam pressure, good heat transfer effect, energy saving, and convenient transportation and operation, it has been widely used in various occasions in recent years, and its usage and quantity are increasing.

►Flow meter for thermal oilCommonly used differential pressure V-cone flowmeter.

When selecting and ordering V-cone flow meters for thermal oil, users should first provide the following process parameters to the manufacturing enterprise:

The name of the tested medium; Pipeline diameter; Usage occasion; Medium state, temperature, and pressure; Scale flow rate, maximum flow rate, minimum flow rate; The diameter and material of the process pipeline, as well as specific installation requirements.

Note: The above parameters are the basis for detailed calculations by the manufacturer before production. Without these parameters, it is difficult to produce a V-cone flowmeter that meets user requirements. The manufacturer calculates the beta value and differential pressure value (range of differential pressure transmitter) of the V-cone flow sensor based on the above parameters provided by the user. These tasks are calculated and completed by professional engineers in the manufacturing plant.

►Flow meter for thermal oilCommon model: HZV-A200A3-1.0SRFHC

Model annotation: V-cone flowmeter, DN200， The measuring medium is: heat transfer oil, flange connection, 304 stainless steel material for the body and V-cone, medium temperature of 400 degrees, rated pressure of 1.0MPa, flange pressure measurement, matched with high-temperature installation accessories (one globe valve, one three valve group, condenser and condenser, two pressure pipes).

A complete set of V-cone flowmeter includes: V-cone flow sensor, differential pressure transmitter, installation accessories, installation flanges and fasteners (multiple self equipped), flow integrator

►Flow meter for thermal oilThe price is affected by changes in selection specifications, caliber, and configuration, and is not a fixed price product. It needs to be selected and quoted according to your working conditions.

Configuration Description：

User manual for V-cone flowmeter, download link：http://www.sh-shyb.com /xiazai/detail/149

►Technical specifications

1. There are several structural forms of V-shaped cone flow meters, including direct welding, flange connection, square tube, clamp type, and non-standard customized. The scope of product supply is shown in the selection table.

2. Scope of use: Widely used for measuring various fluids such as oil, water, gas, and steam, especially for measuring high-temperature, high-pressure, and dirty media, which is significantly stronger than other instruments

3. Accuracy level: ± 0.5%

4. Repeatability: 0.1%

5. Work pressure: maximum 42MPa

6. Working temperature: -40~700C ° C

7. Environmental temperature: -40 to 80 ° C

8. Range ratio: usually 10:1, using a suitable differential pressure transmission can reach 60:1

9. Installation requirements for straight pipe sections: front 3D straight pipe section, rear 1D straight pipe section

10. Applicable media: Almost applicable to all gas and liquid media

11. Nominal diameter: DN15~DN2000

12. Structural material: Various materials are available for users to choose from, including pipes, body flanges, and V-cones, to meet the needs of different working conditions

13. Installation method: Multiple accessories can be provided for users to install, meeting the needs of various working conditions. It can be installed in any direction, regardless of the medium state

14. Explosion proof grade (differential pressure transmitter): explosion-proof, intrinsic safety, non explosion-proof options available (differential pressure transmitter)

15. Power supply (differential pressure transmitter): 12-24VDC

16. Output signal (differential pressure transmitter): 4-20mA or HART protocol

►Flow meter for thermal oilMain advantages and features

1.Low permanent pressure loss

Forming a unique local contraction with minimal permanent pressure loss, only a few thousand pascals, or even a few thousand pascals of permanent pressure loss. The cone causes the fluid axis to gradually contract towards the pipe wall symmetrically, and the gradually diffusing side walls are throttled. The cone is located on the central axis of the pipeline and effectively acts on the high-speed central area. Under the same conditions, the permanent pressure loss of the V-cone is 25% of the orifice plate, and the differential pressure is 50% of the orifice plate, resulting in low energy consumption.

2. High accuracy of 0.5%, good repeatability of 0.1%, and a range width ratio of 10:1

Due to the use of a "gradually contracting inner wall" throttling method in the V-cone flow sensor, the static pressure generated on the downstream side is a high-frequency, low amplitude signal (surge flow), rather than a low-frequency, high amplitude signal produced by old-fashioned differential pressure flow meters such as orifice plates. This makes the differential pressure △ P measured by the differential pressure transmitter a very stable signal with low noise. If the noise is high, the differential pressure transmitter cannot measure low pressure, low flow pressure signals.

3. Short straight pipe section required for installation

Automatic rectification function. The required straight pipe section for installation is short: the front straight pipe section only needs 0-3D, and the rear straight pipe section only needs 0-1D. The requirements for straight pipe sections are low. The conical shape of a V-shaped cone disperses fluid flow, resulting in a flatter velocity distribution. The pointed cone itself acts as a flow regulator, effectively reducing the convex shape in velocity distribution. Make the fluid velocity distribution meet the requirements and effectively reduce the demand for upstream straight pipes.

4. Self mixing and self-cleaning functions

It does not block or adhere, and can measure the flow rate of contaminated fluids. Due to the cone being located in the high-speed center area of the fluid at the center of the axis, droplets, bubbles, and solid particles carried in the fluid will be automatically swept downstream of the pipeline, especially in continuous use

5.Self protection function

Wear resistant, with long-term stability, no need for repeated calibration. Due to the pointed shape of the V-shaped cone, it ensures that no fluid directly impacts its downstream edge, reducing wear and ensuring the reliability of the flowmeter, reducing maintenance workload, and extending the calibration cycle of the instrument.

6. Measurable water vapor

When measuring gases such as compressed air and saturated steam using an orifice plate, there is often water accumulation in front of the orifice plate, which affects the measurement accuracy. The usual solution to this problem is to install the throttling device on the vertical process pipe, or use a ring missing orifice plate or eccentric orifice plate instead. The structural characteristics of the high-speed center zone of the fluid with the cone located at the center of the axis can fundamentally solve the problem of water accumulation in front of the throttling element, and because this is its inherent feature, it does not require special or special treatment, so it will not cause any uncertainty in the measurement.

After sales and warranty