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A monitoring control circuit and device for oil and gas recovery

A monitoring control and detection device technology, applied in distribution devices, special distribution devices, liquid distribution, transportation or transfer devices, etc., can solve problems such as misrecording, oil and gas recovery monitoring records and oil station control data deviation, etc., to ensure safety , eliminate influence, and ensure the effect of integrity judgment

Active Publication Date: 2021-08-17
BAY ENVIRONMENTAL TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this calculation method for refueling has the following problems: If the pulse signal of the controller is temporarily interrupted during the pulse counting process due to some human or mechanical reasons, the oil gun is not connected at this time, and the refueling process is not completed. end, but the controller will think that this refueling process is over. After the pause is over, the pulse signal will continue to be generated, and the controller will start counting again, which will turn the actual refueling process into the second refueling of the controller. In the process, wrong records were generated, and according to the control method of clearing after a refueling, the first refueling will be cleared, resulting in deviations between the oil and gas recovery monitoring records and the control data of the gas station

Method used

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  • A monitoring control circuit and device for oil and gas recovery
  • A monitoring control circuit and device for oil and gas recovery
  • A monitoring control circuit and device for oil and gas recovery

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specific Embodiment approach 1

[0030] A kind of oil gas recovery monitoring control circuit of the present invention, such as figure 1 As shown, it includes an oil gun state detection unit, a gas flow detection unit, a liquid flow detection unit, and a control unit. The control unit is respectively connected with the oil gun state detection unit, the gas flow detection unit, and the liquid flow detection unit. The oil gun state signal detected by the gun state detection unit and the oil flow pulse signal detected by the liquid flow detection unit judge whether a refueling is completed. When the pulse signal and the oil gun state signal are generated simultaneously, it is judged that the refueling process has started; If the gun status signal does not change, it is judged that a refueling process is not completed; if the pulse signal is interrupted and the oil gun status signal changes, it is judged that a refueling process is completed. After one refueling is completed, the refueling amount is calculated, c...

specific Embodiment approach 2

[0048] An oil gas recovery monitoring and control device, comprising an oil gun state detection device, a gas flow detection device, a liquid flow detection device, a controller, the oil gun state detection device, a gas flow detection device, and a liquid flow detection device are connected to the controller respectively, and the oil The gun state detection device is used to detect the state of the oil gun and transmit the detection result to the controller; the gas flow detection device is used to detect the return air flow signal and transmit it to the controller to calculate the return air volume; the liquid flow detection device is used to detect the refueling pulse The number is transmitted to the controller to calculate the amount of refueling, and the controller determines that a refueling process is completed when the state of the oil gun and the pulse signal change at the same time.

[0049] In a specific embodiment of the present application, it includes two gas flow...

specific Embodiment approach 3

[0051] The control unit includes an MCU and a memory. The MCU is used to perform calculations and receive gas flow signals, liquid flow signals, and oil gun status signals. According to the oil gun status signals and liquid flow signals, it is judged whether a refueling process is completed, and the amount of refueling is calculated. Gas volume, gas-liquid ratio, when the gas-liquid ratio is greater than or equal to the set value, the gun lock signal is output to lock the oil gun.

[0052] Specifically, the control of the control unit, such as Figure 7 shown, including the following steps:

[0053] A1, initialization;

[0054] A2. The refueling amount is cleared;

[0055] A3, the air return volume is cleared;

[0056] A4. Determine whether the refueling gun is activated, if so, go to the next step, if not, continue to judge;

[0057] A5. Read the number of refueling pulses;

[0058] A6. Read the return air flow signal;

[0059] A7. Determine whether the refueling gun is...

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Abstract

The invention discloses an oil gas recovery monitoring control circuit and device, comprising an oil gun state detection unit, a gas flow detection unit, a liquid flow detection unit, and a control unit. The control unit is respectively connected with the oil gun state detection unit, the gas flow detection unit, the liquid The flow detection unit is connected to judge whether a refueling is completed according to the state signal of the oil gun detected by the oil gun state detection unit and the liquid flow pulse signal detected by the liquid flow detection unit; The measurement of liquid flow ends when the gun stops, so as to obtain the amount of refueling during one refueling process, which avoids the phenomenon that one refueling may be divided into multiple measurements during the liquid flow measurement process, and at the same time detects the gas flow and calculates the gas-liquid ratio to ensure Gas station security.

Description

technical field [0001] The invention relates to the technical field of oil and gas monitoring, in particular to an oil and gas recovery monitoring control circuit and device. Background technique [0002] At present, the oil gas recovery monitoring calculates the refueling amount based on the fuel flow pulse signal. The oil gas recovery monitoring controller starts counting when the pulse signal is detected, and records the current fuel oil amount and gas-liquid ratio after the pulse signal is interrupted. , to complete a refueling metering. However, this calculation method for refueling has the following problems: If the pulse signal of the controller is temporarily interrupted during the pulse counting process due to some human or mechanical reasons, the oil gun is not connected at this time, and the refueling process is not completed. end, but the controller will think that this refueling process is over. After the pause is over, the pulse signal will continue to be gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B67D7/54
CPCB67D7/54
Inventor 丁鹏魏巍
Owner BAY ENVIRONMENTAL TECH BEIJING