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Continuous weighing and metering device

A technology of measuring device and measuring tank, which is applied in the direction of measuring device, weighing, weighing equipment for automatic feeding/discharging, etc. The equipment is easy to use and the measurement data is accurate.

Inactive Publication Date: 2018-09-07
盘锦乐泰机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if this measurement method is used for a long time, the vibration caused by gas, liquid impact or tipping will cause the internal mechanical parts to wear out or the zero point of the sensor will drift, and finally the measurement accuracy will be greatly reduced.
In order to improve the accuracy of the metering equipment, the calibration operation usually stops the equipment, injects clean water into the metering tank, and manually calibrates the mass method. This calibration method is static calibration. The working conditions are completely different, which greatly increases the labor intensity and cannot guarantee the calibration accuracy

Method used

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  • Continuous weighing and metering device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: figure 1 The continuous weighing and measuring device shown includes a metering tank 1 provided with a liquid inlet, a liquid outlet and an exhaust port, and a tipping bucket meter 2 arranged in the metering tank 1 . The buffer device 7 is arranged between the liquid inlet and the tipping bucket meter 2, and is composed of a separation umbrella and a guide tube. The separation umbrella can separate the gas and liquid contained in the liquid inlet, and can also reduce the kinetic energy of the oil at the liquid inlet. The draft tube directs the steady oil flow to the tipping bucket gauge 2. The height of the tipping bucket gauge is provided with a counting sensor 6 for measuring the number of times the tipping bucket gauge 2 turns over inside the metering tank. The lower part of the metering tank is provided with a heater, and the bottom of the metering tank is provided with a water bag 4. The water bag communicates with the bottom of the metering tank 1 thro...

Embodiment 2

[0015] Example 2: figure 2 The continuous weighing metering device shown is the same as figure 1 The shown continuous weighing and metering devices have the same basic structure, except that the liquid introduction pipe is arranged outside the metering tank. This embodiment is suitable for use on metering tanks with small volume or limited internal space.

[0016] As a preferred embodiment of the present invention, the tipping bucket meter 2 is composed of two identical hoppers, a rotating shaft, a bearing and a bearing seat, a support plate, a damping unit, and a limiting unit. The two hoppers and the rotating shaft are fixed to each other. The bearing and the bearing seat are installed on the rotating shaft and fixed on the support plate with bolts. One end of the rotating shaft is connected to the damping unit, and the damping unit is connected to the limit unit. The limit unit can control the tilting angle of the tipping bucket. When the tipping bucket meter 2 is overtur...

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Abstract

The invention relates to a continuous weighing and metering device, which is characterized in that the oil enters a buffer device from a liquid inlet pipeline, the buffer device separates a gas and aliquid contained in the inlet liquid and guides the stable oil into a tipping bucket metering device, the tipping bucket metering device turns over to discharge the oil every time when the liquid flowing into the tipping bucket metering device reaches a tipping bucket rated load-bearing value, the oil flows into another tipping bucket at the same time, two tipping buckets perform oil charge and oil discharge alternately, a counting sensor counts the number of overturn times of the tipping bucket metering device in real time, the product of the mass of the liquid in the tipping bucket meteringdevice and the number of overturn times is metering data of the liquid. The gas separated by the buffer device is fed into a gas discharge pipeline, and a gas flowmeter on the gas discharge pipeline measures gas data. In order to realize automatic operation metering control, the continuous weighing and metering device is further provided with a self-calibration control system, the pressure intensity of the liquid in a metering tank is calculated through detecting the liquid level of a liquid guiding pipe, and thus the mass of the inlet liquid in a metering tank is calculated. The ratio of themass of the inlet liquid and the number of overturn times of the tipping buckets can be used for calibrating the unit mass of each bucket of liquid of the tipping bucket metering device, so that a function of calibrating the tipping bucket metering device online is realized, the equipment is enabled to be used more conveniently, and the metering data is more accurate.

Description

technical field [0001] The invention relates to an oil gas metering device for an oil production well and a gathering and transportation system in an oil field, in particular to a continuous weighing metering device. Background technique [0002] In the process of oilfield production and management, oil well metering is a very important work. At present, there are many types of metering methods for oil wells in various oil fields in my country, such as oil metering separator metering, gas-liquid sub-item metering, active metering vehicle metering, tipping bucket metering, etc. Among them, the tipping bucket metering has changed the volume method of oil measurement. The model is changed to weighing measurement, which can realize continuous measurement, and it can be connected with the computer system to realize automatic statistics of data, which is widely used. However, if this measurement method is used for a long time, the vibration caused by gas, liquid impact or tipping ...

Claims

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Application Information

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IPC IPC(8): G01G13/00G01G13/24
CPCG01G13/00G01G13/247
Inventor 孙胜凯苟景飞张春田
Owner 盘锦乐泰机械有限公司