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DESG series dual tube electromagnetic flow measurement system
1、 Product Overview: The DESG series dual tube electromagnetic flow measurement system is a single well crude oil metering equipment successfully deve
Product details
1、 Product Overview
DESG series dual tube electromagnetic flow measurement system, is a single well crude oil metering equipment successfully developed by our company based on the principle of flow measurement and control, combined with the special environment of oil field single well crude oil flow measurement, and after several on-site tests.
The system adopts advanced measurement and control technology, effectively separates gas from the mixed liquid using gas-liquid separation devices, and transports them separately, eliminating the interference of gas on the metering system during the oil well production process; By utilizing the internal compensation device of the system, coefficient correction is automatically performed to ensure the accuracy of the measurement and control system.
DESG series dual tube electromagnetic flow measurement systemThe application of this technology has solved the problem of measuring liquids that are difficult to measure with traditional flow measurement instruments, such as mud, slurry, oil slurry, fuel oil, residual oil, coal tar and other high viscosity fluids, as well as fluids with suspended solids, easy crystallization, wax deposition, and dirt. Especially, the measurement system is designed completely based on the requirements of oil well crude oil measurement, using high-tech data calculation and processing, with high intelligence level, large data calculation ability, and low overall power consumption; Full Chinese and English LCD display(Can simultaneously display the instantaneous/cumulative flow rate and water content of mixed liquids, as well as the instantaneous/cumulative flow rate, temperature, and pressure of crude oil)Convenient for on-site use; Low voltage power supply ensures the safety and reliability of the circuit system; Using modern transmission systems and multi signal transmission design, wired or wireless signal transmission can be selected（Can form an IoT transmission system)Comprehensive protection design, widely applicable to complex outdoor environments in different regions. Thus filling the gap in domestic and foreign oil well crude oil measurement instruments, it has broad application prospects in the field of oil extraction.
2、 Structure and principle
DESG series dual tube electromagnetic flow measurement systemIt consists of flow sensors, meters, density compensators, gas-liquid separators, data calculation and display systems, and auxiliary temperature control systems, and is installed in the oil well outlet pipeline.
The working principle of the measurement system is as follows: when the mixed liquid produced by petroleum equipment enters the measurement system, the gas-liquid separator separates the gas from the mixed liquid, and then measures it using a flow sensor. The compensation device compensates and corrects the measurement coefficient, and then the data processing system performs comprehensive data calculation to obtain accurate flow measurement data.
Due to the particularity of measuring media, our company uses high-precision, anti clogging, and wear-resistant flow sensors for measurement based on the principle of energy conservation law and flow continuity equation. At the same time, in response to the unstable properties and large parameter changes of crude oil mixed media, a small gas-liquid separator is designed in the system to separate the medium gas from the mixed liquid, effectively ensuring the purity of the measured medium; Install a density compensator at the rear of the flow sensor (the density body compensator is a powerful online measurement system independently developed by our company, which can measure the density of the medium in real time), solve the gravity characteristics of the medium through mathematical models, correct the measurement results and flow counting data, and ensure the measurement accuracy of the system.
To prevent low-temperature condensation of wax in crude oil or crude oil mixtures, the metering system is designed with an auxiliary temperature control system that uses thermal oil as the thermal medium to control the temperature of the mixed liquid. The auxiliary temperature control system has the characteristics of thermal conductivity and insulation, uniform temperature control, safety and reliability, and can maintain the temperature measured by the system sensor at around 60-90 ℃. In order to maximize the utilization of the measuring system's own thermal energy, a self insulation function is also designed for the measuring and control instruments. Without using additional energy, the temperature of the instrument part of the measuring and control system is maintained within the range of 5-15 ℃ when the temperature is outside -20-40 ℃, making the measuring system suitable for extreme outdoor environments.
3、 Product Features
1. Adopting an integrated installation structure, compact in size, easy to install and use, as long as the process pipeline is connected to the inlet and outlet of the system, the pipeline system installation is completed; As long as the nominal working power supply is connected, the system is in working condition.
2. Adopting an outdoor waterproof design with a protection level of IP65, the main components are protected by a protective design, and the outer cover is protected by a corrosion-resistant coating, which is very suitable for harsh outdoor working environments.
3. Strong adaptability to media, capable of measuring high and low pressure fluids, especially suitable for fluids with high viscosity, slurry, easy crystallization, wax deposition, high suspended solids content, and dirty fluids. Adopting a dual flange pressure tapping design, there is no problem of pressure tapping port blockage.
4. Using a density compensator to detect and analyze the density of the medium, and providing real-time compensation for the measured values of the flowmeter, the measurement accuracy is high.
5. Adopting an auxiliary automatic temperature control system with high degree of automation, precise and sensitive temperature control, uniform temperature distribution, safety and reliability, effectively ensuring the temperature requirements of the measuring medium and ensuring the normal operation of the instrument in the wild and cold places.
6. The data processing display system adopts high-performance embedded microprocessors, which have fast computing speed, strong data processing capability, and high accuracy; By using advanced data recording devices, the recorded data can be powered off for 10 years without loss. The recorded data can be transmitted to other computers or servers through an external 485 data interface or USB interface, and the system has powerful functions.
7. The circuit adopts SMD devices and surface mount technology (SMT), with low power consumption and high reliability; Full Chinese menu debugging, large screen full Chinese LCD display instantaneous (mixed) flow, cumulative (mixed) flow, working mixed density, etc., rich information, convenient for users to record and view.
8. The system, in conjunction with the data remote transmission module, can form an automatic online data transmission system that can achieve unmanned operation.
9. The system adopts multiple power supply schemes, and can be powered by solar energy (battery) in the wild or areas without power supply.
10. All electrical systems adopt explosion-proof design, and the pipeline materials and welding are configured according to the standards of the petroleum industry. They have undergone pressure and non-destructive testing, fully meeting the safety and explosion-proof requirements of the petroleum industry..
4、 Comparison Table of Caliber and Flow Rate
DESG series dual tube electromagnetic flow measurement system, is a single well crude oil metering equipment successfully developed by our company based on the principle of flow measurement and control, combined with the special environment of oil field single well crude oil flow measurement, and after several on-site tests.The system adopts advanced measurement and control technology, effectively separates gas from the mixed liquid using gas-liquid separation devices, and transports them separately, eliminating the interference of gas on the metering system during the oil well production process; By utilizing the internal compensation device of the system, coefficient correction is automatically performed to ensure the accuracy of the measurement and control system.
DESG series dual tube electromagnetic flow measurement systemThe application of this technology has solved the problem of measuring liquids that are difficult to measure with traditional flow measurement instruments, such as mud, slurry, oil slurry, fuel oil, residual oil, coal tar and other high viscosity fluids, as well as fluids with suspended solids, easy crystallization, wax deposition, and dirt. Especially, the measurement system is designed completely based on the requirements of oil well crude oil measurement, using high-tech data calculation and processing, with high intelligence level, large data calculation ability, and low overall power consumption; Full Chinese and English LCD display(Can simultaneously display the instantaneous/cumulative flow rate and water content of mixed liquids, as well as the instantaneous/cumulative flow rate, temperature, and pressure of crude oil)Convenient for on-site use; Low voltage power supply ensures the safety and reliability of the circuit system; Using modern transmission systems and multi signal transmission design, wired or wireless signal transmission can be selected（Can form an IoT transmission system)Comprehensive protection design, widely applicable to complex outdoor environments in different regions. Thus filling the gap in domestic and foreign oil well crude oil measurement instruments, it has broad application prospects in the field of oil extraction.
2、 Structure and principle
DESG series dual tube electromagnetic flow measurement systemIt consists of flow sensors, meters, density compensators, gas-liquid separators, data calculation and display systems, and auxiliary temperature control systems, and is installed in the oil well outlet pipeline.
The working principle of the measurement system is as follows: when the mixed liquid produced by petroleum equipment enters the measurement system, the gas-liquid separator separates the gas from the mixed liquid, and then measures it using a flow sensor. The compensation device compensates and corrects the measurement coefficient, and then the data processing system performs comprehensive data calculation to obtain accurate flow measurement data.
Due to the particularity of measuring media, our company uses high-precision, anti clogging, and wear-resistant flow sensors for measurement based on the principle of energy conservation law and flow continuity equation. At the same time, in response to the unstable properties and large parameter changes of crude oil mixed media, a small gas-liquid separator is designed in the system to separate the medium gas from the mixed liquid, effectively ensuring the purity of the measured medium; Install a density compensator at the rear of the flow sensor (the density body compensator is a powerful online measurement system independently developed by our company, which can measure the density of the medium in real time), solve the gravity characteristics of the medium through mathematical models, correct the measurement results and flow counting data, and ensure the measurement accuracy of the system.
To prevent low-temperature condensation of wax in crude oil or crude oil mixtures, the metering system is designed with an auxiliary temperature control system that uses thermal oil as the thermal medium to control the temperature of the mixed liquid. The auxiliary temperature control system has the characteristics of thermal conductivity and insulation, uniform temperature control, safety and reliability, and can maintain the temperature measured by the system sensor at around 60-90 ℃. In order to maximize the utilization of the measuring system's own thermal energy, a self insulation function is also designed for the measuring and control instruments. Without using additional energy, the temperature of the instrument part of the measuring and control system is maintained within the range of 5-15 ℃ when the temperature is outside -20-40 ℃, making the measuring system suitable for extreme outdoor environments.
3、 Product Features
1. Adopting an integrated installation structure, compact in size, easy to install and use, as long as the process pipeline is connected to the inlet and outlet of the system, the pipeline system installation is completed; As long as the nominal working power supply is connected, the system is in working condition.
2. Adopting an outdoor waterproof design with a protection level of IP65, the main components are protected by a protective design, and the outer cover is protected by a corrosion-resistant coating, which is very suitable for harsh outdoor working environments.
3. Strong adaptability to media, capable of measuring high and low pressure fluids, especially suitable for fluids with high viscosity, slurry, easy crystallization, wax deposition, high suspended solids content, and dirty fluids. Adopting a dual flange pressure tapping design, there is no problem of pressure tapping port blockage.
4. Using a density compensator to detect and analyze the density of the medium, and providing real-time compensation for the measured values of the flowmeter, the measurement accuracy is high.
5. Adopting an auxiliary automatic temperature control system with high degree of automation, precise and sensitive temperature control, uniform temperature distribution, safety and reliability, effectively ensuring the temperature requirements of the measuring medium and ensuring the normal operation of the instrument in the wild and cold places.
6. The data processing display system adopts high-performance embedded microprocessors, which have fast computing speed, strong data processing capability, and high accuracy; By using advanced data recording devices, the recorded data can be powered off for 10 years without loss. The recorded data can be transmitted to other computers or servers through an external 485 data interface or USB interface, and the system has powerful functions.
7. The circuit adopts SMD devices and surface mount technology (SMT), with low power consumption and high reliability; Full Chinese menu debugging, large screen full Chinese LCD display instantaneous (mixed) flow, cumulative (mixed) flow, working mixed density, etc., rich information, convenient for users to record and view.
8. The system, in conjunction with the data remote transmission module, can form an automatic online data transmission system that can achieve unmanned operation.
9. The system adopts multiple power supply schemes, and can be powered by solar energy (battery) in the wild or areas without power supply.
10. All electrical systems adopt explosion-proof design, and the pipeline materials and welding are configured according to the standards of the petroleum industry. They have undergone pressure and non-destructive testing, fully meeting the safety and explosion-proof requirements of the petroleum industry..
4、 Comparison Table of Caliber and Flow Rate
| serial number | caliber | Flow range (unit: m3/h) | remark |
| 1 | DN20 | 0.2—4 | Determine the flow range based on a 10:1 range ratio |
| 2 | DN25 | 0.4—7 | Determine the flow range based on a 10:1 range ratio |
| 3 | DN32 | 0.6—12 | Determine the flow range based on a 10:1 range ratio |
| 4 | DN40 | 0.9—18 | Determine the flow range based on a 10:1 range ratio |
| 5 | DN50 | 1.4--28 | Determine the flow range based on a 10:1 range ratio |
| 6 | DN65 | 2.4--48 | Determine the flow range based on a 10:1 range ratio |
| 7 | DN80 | 4.0--72 | Determine the flow range based on a 10:1 range ratio |
| 8 | DN100 | 5.6--112 | Determine the flow range based on a 10:1 range ratio |
| 9 | DN125 | 9.0--180 | Determine the flow range based on a 10:1 range ratio |
| 10 | DN150 | 13--256 | Determine the flow range based on a 10:1 range ratio |
| 11 | DN200 | 20--400 | Determine the flow range based on a 10:1 range ratio |
| 12 | DN250 | 40--700 | Determine the flow range based on a 10:1 range ratio |
| 13 | DN300 | 50--1000 | Determine the flow range based on a 10:1 range ratio |
5、 Installation size and pressure rating
| DN | Limit pressure (MPa) |
Installation length （mm） |
outer diameter of flange （mm） |
Center distance of flange （mm） |
| 20 | 4.0 | 550 | 105 | 75 |
| 25 | 4.0 | 600 | 115 | 85 |
| 32 | 4.0 | 600 | 140 | 100 |
| 40 | 4.0 | 750 | 150 | 110 |
| 50 | 4.0 | 750 | 165 | 125 |
| 65 | 4.0 | 850 | 185 | 145 |
| 80 | 4.0 | 950 | 200 | 160 |
| 100 | 1.6 | 1100 | 220 | 180 |
| 125 | 1.6 | 1100 | 250 | 210 |
| 150 | 1.6 | 1300 | 285 | 240 |
| 200 | 1.0 | 1500 | 340 | 295 |
| 250 | 1.0 | 1600 | 395 | 350 |
| 300 | 1.0 | 1800 | 445 | 400 |
Note: 1. The table shows the dimensions of flow meters specifically for oil fields, and ordinary specifications are not included in this table.
2. The above pressure levels are standard configurations. If special pressure levels are required, they must be specified in the order.
3. The flange specifications adopt European standards, and American standards need to be specified.
6、 Performance parameters
1. Shell, pipeline, flowmeter material: 304 Q345R
Density compensator material: 304
2. Environmental temperature: (-40-60) ℃, environmental humidity: (0-95)%
3. System protection level: IP65
4. Density range: (0.5-2.5) g/cc [(500-2500) kg/m3]
Measurement accuracy: ± 0.002 g/cc (± 2 kg/m3)
Repeatability: ± 0.0002g/cc (± 0.2 kg/m3)
5. System measurement accuracy: ± 1.0%, repeatability: 0.2%
6. Range ratio: 10:1
7. System working power supply: 220VAC, 24VDC, solar cell system
8. System power consumption: (30-530) W
9. Data output format RS485, transmission distance 1000 meters
10. Temperature control deviation: ± 1 ℃
11. Connection method: flange connection
12. Data remote transmission methods: ISM RF radio, GPRS/GSM module, IoT wireless transmission
13. Explosion proof rating of the system: EXd Ⅱ BT6
7、 Installation instructions
Before installation, fill and lay the installation foundation at the installation site. The installation foundation must have a certain structural strength and be able to withstand the weight of the measuring system. The foundation should have fixed connections and pre embedded, which can be connected and fixed with the measuring system. The foundation should have a certain height and the equipment should not be installed at the lowest point of the work area. The base of the measuring system must be grounded.
When lifting the measuring system, the lifting ring should be connected to the base calibration position and should not be connected to the system pipeline to avoid damaging the equipment. The equipment should be lifted horizontally, and it is strictly prohibited to lift it upside down or sideways; Lift and place gently, and rough operation is strictly prohibited.
Before installing and connecting the measuring equipment, pre installed pipelines need to be purged in advance. It is strictly prohibited to perform pipeline blowing work after connecting measuring equipment. The on-site work pressure must comply with the equipment design pressure, and the measuring system must not be installed and used in places that do not comply with the work pressure.
4. The flange connecting the measuring system and the pipeline must be reliably connected, and there must be no leakage or dripping. After the mechanical construction is completed, arrange the connecting cables. The cable must be connected to an explosion-proof junction box and comply with explosion-proof wiring standards.
5. The voltage level of the connected power supply must comply with the nominal voltage level of the equipment; Connecting to a power source that does not meet the requirements will pose a danger.
When the wiring work is confirmed to be completed, the working power switch can be turned on and the system is in the preheating stage. If the system displays an abnormality or other malfunction, please turn off the power switch.
When the liquid is completely filled in the pipeline, close the front and rear valves of the system to keep the liquid in the pipeline in a static state, adjust the zero point of the flow meter differential pressure instrument, and adjust the zero point of the density compensator. For specific operation methods of other parameters, follow the instructions for differential pressure transmitter and intelligent display instrument.
8. Adjust the temperature control range based on the on-site temperature conditions (see the temperature display controller user manual for details).
After the on-site installation and debugging work is completed, the control box should be closed to prevent heat loss or rainwater from entering the control box, causing unnecessary losses.
8、 Selection Table
2. The above pressure levels are standard configurations. If special pressure levels are required, they must be specified in the order.
3. The flange specifications adopt European standards, and American standards need to be specified.
6、 Performance parameters
1. Shell, pipeline, flowmeter material: 304 Q345R
Density compensator material: 304
2. Environmental temperature: (-40-60) ℃, environmental humidity: (0-95)%
3. System protection level: IP65
4. Density range: (0.5-2.5) g/cc [(500-2500) kg/m3]
Measurement accuracy: ± 0.002 g/cc (± 2 kg/m3)
Repeatability: ± 0.0002g/cc (± 0.2 kg/m3)
5. System measurement accuracy: ± 1.0%, repeatability: 0.2%
6. Range ratio: 10:1
7. System working power supply: 220VAC, 24VDC, solar cell system
8. System power consumption: (30-530) W
9. Data output format RS485, transmission distance 1000 meters
10. Temperature control deviation: ± 1 ℃
11. Connection method: flange connection
12. Data remote transmission methods: ISM RF radio, GPRS/GSM module, IoT wireless transmission
13. Explosion proof rating of the system: EXd Ⅱ BT6
7、 Installation instructions
Before installation, fill and lay the installation foundation at the installation site. The installation foundation must have a certain structural strength and be able to withstand the weight of the measuring system. The foundation should have fixed connections and pre embedded, which can be connected and fixed with the measuring system. The foundation should have a certain height and the equipment should not be installed at the lowest point of the work area. The base of the measuring system must be grounded.
When lifting the measuring system, the lifting ring should be connected to the base calibration position and should not be connected to the system pipeline to avoid damaging the equipment. The equipment should be lifted horizontally, and it is strictly prohibited to lift it upside down or sideways; Lift and place gently, and rough operation is strictly prohibited.
Before installing and connecting the measuring equipment, pre installed pipelines need to be purged in advance. It is strictly prohibited to perform pipeline blowing work after connecting measuring equipment. The on-site work pressure must comply with the equipment design pressure, and the measuring system must not be installed and used in places that do not comply with the work pressure.
4. The flange connecting the measuring system and the pipeline must be reliably connected, and there must be no leakage or dripping. After the mechanical construction is completed, arrange the connecting cables. The cable must be connected to an explosion-proof junction box and comply with explosion-proof wiring standards.
5. The voltage level of the connected power supply must comply with the nominal voltage level of the equipment; Connecting to a power source that does not meet the requirements will pose a danger.
When the wiring work is confirmed to be completed, the working power switch can be turned on and the system is in the preheating stage. If the system displays an abnormality or other malfunction, please turn off the power switch.
When the liquid is completely filled in the pipeline, close the front and rear valves of the system to keep the liquid in the pipeline in a static state, adjust the zero point of the flow meter differential pressure instrument, and adjust the zero point of the density compensator. For specific operation methods of other parameters, follow the instructions for differential pressure transmitter and intelligent display instrument.
8. Adjust the temperature control range based on the on-site temperature conditions (see the temperature display controller user manual for details).
After the on-site installation and debugging work is completed, the control box should be closed to prevent heat loss or rainwater from entering the control box, causing unnecessary losses.
8、 Selection Table
| HWLDJ |
DESG series dual tube electromagnetic flow measurement system
|
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| Measuring caliber | XXX | 50 represents DN50 | |||||||||||||||
| work pressure | 1 | 1.6MPA | 2 | 4.0MPA | 3 | Other (indicate) | |||||||||||
| Operating Temperature | 1 | room temperature | 2 | high temperature | 3 | low temperature | |||||||||||
| Material of flowmeter pipeline | 1 | 345R | 2 | 304 | 3 | 316 | |||||||||||
| Material of the transmitter for liquid connection | 1 | 304 | 2 | 316 | 3 | other | |||||||||||
| Flow meter function | P | 普通型 | |||||||||||||||
| L | Anti wax type | ||||||||||||||||
| F | corrosion-resistant type | ||||||||||||||||
| D | Anti blocking type | ||||||||||||||||
| power supply method | 1 | 220VAC | |||||||||||||||
| 2 | 24VAC | ||||||||||||||||
| 3 | battery | ||||||||||||||||
| 4 | Solar power supply system | ||||||||||||||||
| Signal output mode | 1 | 4-20MA | |||||||||||||||
| 2 | RS485/232 | ||||||||||||||||
| 3 | GPRS/GSM module (wireless transmission for the Internet of Things) | ||||||||||||||||
| 4 | ISM radio frequency station | ||||||||||||||||
| Compensation calculation method | 0 | No compensation | |||||||||||||||
| 1 | Density compensation | ||||||||||||||||
| 2 | Mixed density compensation (oil water ratio calculation) | ||||||||||||||||
| Protection level | 1 | IP65 | |||||||||||||||
| 2 | IP68 | ||||||||||||||||
| accuracy | 1 | Level 1.0 | |||||||||||||||
| 2 | Level 1.5 | ||||||||||||||||
| Explosion-proof rating | Exd IIBT6 | ||||||||||||||||
| flow range | xxxx m3/h 或 xxxx t/h | ||||||||||||||||
Model classification:
a. The HWLDJ-1 model is a simple type (without density compensation) that displays instantaneous mixed liquid Accumulated traffic.
b. HWLDJ-2 is a density compensation type that displays instantaneous mixed liquid Accumulated traffic.
c. The HWLDJ-3 type is a moisture content calculation type Display instantaneous mixed liquid Accumulated flow rate, moisture content.
d. The HWLDJ-4 type is an oil content calculation type Display the instantaneous and cumulative flow rate of the mixed liquid.
e. The HWLDJ-5 type is a water content and oil content calculation type, which displays the instantaneous and cumulative flow rate of mixed liquids, crude oil quality, water content, temperature, and pressure.
9、 Description of IoT Wireless Transmission System
1System Overview
This system integrates computer technology, mobile data communication technology, data network technology, and self-control technology, and can automatically complete remote data collection, recording, real-time monitoring, statistical analysis, printing, and remote control of pump systems for flow signals and electricity information networks. The purpose of system operation is to achieve scientific production and increase output; Safe and efficient management, improving work efficiency, reducing labor costs, minimizing maintenance costs, reducing electricity costs, extending equipment lifespan, effectively enhancing the safety of oil well production and management, is crucial for ensuring the safe operation of oil wells.
2System composition
(1)This system mainly consists of the following parts:
uMonitoring Center:(Computer, monitoring software)
uCommunication network:(Communication network platform based on mobile or telecommunications)
uGPRS/CDMA RTU：(Collect on-site electricity meter and measurement system signals, transmit them to the monitoring center through GPRS/CDMA network, and the control center issues oil well motor control instructions.)
uMeasuring instruments:HWLDJ type crude oil single well metering and measurement system, digital electric meter, frequency converter, etc
uAuxiliary system:On site control box, power conversion, installation accessories.
(2)System Architecture Diagram(Pattern Structure)：
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