CN203008893U - Automatic control working fluid level detection instrument - Google Patents
Automatic control working fluid level detection instrument Download PDFInfo
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- CN203008893U CN203008893U CN 201320025425 CN201320025425U CN203008893U CN 203008893 U CN203008893 U CN 203008893U CN 201320025425 CN201320025425 CN 201320025425 CN 201320025425 U CN201320025425 U CN 201320025425U CN 203008893 U CN203008893 U CN 203008893U
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- pressure sensor
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Abstract
The utility model discloses an automatic control working fluid level detection instrument and mainly aims at solving the problems of insecurity and inaccurate detection in manual sounding for working fluid level detection of an oil well at present. The detection instrument is characterized by comprising a subsonic wave sensor, a pressure sensor, a temperature sensor, and an amplification circuit which is matched with the sensors and comprises a sounding module and a data remote transmission module, wherein sampling signals provided by the subsonic wave sensor, the pressure sensor and the temperature sensor are converted through an A/D (analog/digital) conversion module and input to the corresponding digital sampling signal input end of a central controller; the data remote transmission module is connected with the central controller by a bidirectional data flow structure; the sounding module comprises an air pump and a solenoid valve which are mounted on a detection instrument housing; the solenoid valve serves as a control switch of the air pump; and the central controller is used for outputting a control signal to the solenoid valve. The detection instrument can be mounted on the mouth of a well, can be automatically controlled to make a sound, and is higher in detection precision.
Description
Technical field
The utility model relates to a kind of well head producing fluid level checkout gear that is applied in the oil field automation control field.
Background technology
Dynamic oil level be the well head of oil machine well to the distance on oil reservoir surface, down-hole, be an important parameter in the rod-pumped well routine test, can reflect duty and the output situation of rod-pumped well, for diagnosis and the maintenance of oil well provides foundation.The detection method of tradition producing fluid level is after manually sound wave occuring, and calculates dynamic oil level, and its way is dangerous, and result of calculation is not accurate enough.
Summary of the invention
In order to solve the technical problem of mentioning in background technology, the utility model provides a kind of automatic control producing fluid level detector, and this detector can be arranged on well head can control sounding automatically, uses safety and has higher accuracy of detection.
The technical solution of the utility model is: this kind controlled the producing fluid level detector automatically, has the detector housing, comprise a central controller with supply module and display module, it is characterized in that: described detector also comprises infrasonic sensor and the filter circuit and the amplifying circuit that match with described infrasonic sensor, comprise pressure sensor and the amplifying circuit that matches with described pressure sensor, comprise temperature pick up and the amplifying circuit that matches with described temperature pick up, comprise a sounding module, comprise a data remote-transmission module; Wherein, be input to the corresponding digital sampled signal input of described central controller after the sampled signal process A/D modular converter conversion that described infrasonic sensor, pressure sensor and temperature pick up provide; Adopt the bi-directional data flow structure to be connected between described data remote transmitting module and central controller; Described sounding module is made of the air pump and the electromagnetic valve that are arranged on the detector housing, and described electromagnetic valve is as the gauge tap of this air pump, and described central controller is to this electromagnetic valve output control signal.
The utlity model has following beneficial effect: at first, this kind detector can utilize microprocessor to control sounding device, sends infrasound, and need not control manually sounding, thereby guaranteed to detect workman's safety.Secondly, detector adopts the FIR wave filter to carry out filtering to sampled data, can obtain respectively joint hoop ripple and liquid surface wave, by the characteristics of MCU according to image data, select the method for wavelet analysis that signal is processed afterwards, adopt Fourier transform pairs joint hoop ripple signal to carry out spectrum analysis, obtain the spread speed of sound wave in oil pipe, again liquid surface wave is carried out the spectrum-subtraction analysis, determine the position of liquid level echo, calculate fluid value in conjunction with the SVEL of gained.In this course, the main process of processing due to signal has adopted Digital Signal Processing, makes measurement result more accurate; And can show the producing fluid level curve with the dynamic real time data curve, and can reflect more intuitively the variation tendency of producing fluid level, more more vivid and directly perceived than only showing with numeral.In addition, this kind detector at the well head sensor installation, is not integrated into sensor in detector, thereby makes detector itself not fragile.At last, this kind detector can pass to control centre to the related data of producing fluid level in real time dynamically, therefore, can realize on-the-spot unmanned.
Description of drawings:
Fig. 1 is that knot of the present utility model consists of block diagram.
Fig. 2 is when specifically implementing, circuit diagram of the present utility model.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this kind controlled the producing fluid level detector automatically, has the detector housing, comprise a central controller with supply module and display module, its unique distinction is: described detector also comprises infrasonic sensor and the FIR filter circuit and the amplifying circuit that match with described infrasonic sensor, comprise pressure sensor and the amplifying circuit that matches with described pressure sensor, comprise temperature pick up and the amplifying circuit that matches with described temperature pick up, comprise a sounding module, comprise a data remote-transmission module; Wherein, be input to the corresponding digital sampled signal input of described central controller after the sampled signal process A/D modular converter conversion that described infrasonic sensor, pressure sensor and temperature pick up provide; Adopt the bi-directional data flow structure to be connected between described data remote transmitting module and central controller; Described sounding module is made of the air pump and the electromagnetic valve that are arranged on the detector housing, and described electromagnetic valve is as the gauge tap of this air pump, and described central controller is to this electromagnetic valve output control signal.
During concrete enforcement, described data remote transmitting module adopts the GPRS module, is connected by the RS232 interface between described GPRS module and central controller.
Fig. 2 is when specifically implementing, circuit diagram of the present utility model.In figure, U1 is central controller, and U2 namely represents the sounding module, and U7 represents display module, and U8 represents alarm module, U9 representative data remote-transmission module.Whether the sounding module is made of air pump and electromagnetic valve, control air pump by the switch of electromagnetic valve and exit.Detecting acquisition module is made of infrasonic sensor U4, pressure sensor U5, temperature pick up U3 and A/D modular converter U6.The data that three kinds of sensors gather are transported in AT89C51 series monolithic U1 by the AD974 type A/D modular converter of 4 passages after treatment.
The course of work of this kind of detector is as follows: start the system works button, central controller U1 selects the method for operation according to the force value that pressure sensor records.If force value is less than 0.2Mpa, the central controller controls electromagnetic valve, make the pump venting, produce infrasound, send the infrasound signal to liquid level, detect acquisition module by infrasonic sensor detection of echoes signal, by entering the A/D modular converter after filtering, amplifying circuit, process computing by central controller, according to the characteristics of image data, select the method for wavelet analysis that signal is processed.Adopt Fourier transform pairs joint hoop ripple signal to carry out spectrum analysis, and reference temperature value obtain the spread speed of sound wave in oil pipe.Again liquid surface wave is carried out the spectrum-subtraction analysis, determine the position of liquid level echo, calculate fluid value in conjunction with the SVEL of gained.Show in real time the producing fluid level curve by display module, and data are passed to control centre by data remote transmitting module, for data analysis and control.What select due to native system is super low-power consumption sonac and other modules, and battery module can be kept system's normal operation 1-4 week.The system works temperature range is-40 ℃-+60 ℃.
Claims (2)
1. automatically control the producing fluid level detector for one kind, has the detector housing, comprise a central controller with supply module and display module, it is characterized in that: described detector also comprises infrasonic sensor and the FIR filter circuit and the amplifying circuit that match with described infrasonic sensor, comprise pressure sensor and the amplifying circuit that matches with described pressure sensor, comprise temperature pick up and the amplifying circuit that matches with described temperature pick up, comprise a sounding module, comprise a data remote-transmission module; Wherein, be input to the corresponding digital sampled signal input of described central controller after the sampled signal process A/D modular converter conversion that described infrasonic sensor, pressure sensor and temperature pick up provide; Adopt the bi-directional data flow structure to be connected between described data remote transmitting module and central controller; Described sounding module is made of the air pump and the electromagnetic valve that are arranged on the detector housing, and described electromagnetic valve is as the gauge tap of this air pump, and described central controller is to this electromagnetic valve output control signal.
2. automatic control producing fluid level detector according to claim 1 is characterized in that: described data remote transmitting module adopts the GPRS module, is connected by the RS232 interface between described GPRS module and central controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025425 CN203008893U (en) | 2013-01-17 | 2013-01-17 | Automatic control working fluid level detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025425 CN203008893U (en) | 2013-01-17 | 2013-01-17 | Automatic control working fluid level detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203008893U true CN203008893U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320025425 Expired - Fee Related CN203008893U (en) | 2013-01-17 | 2013-01-17 | Automatic control working fluid level detection instrument |
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| CN (1) | CN203008893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821499A (en) * | 2014-02-20 | 2014-05-28 | 重庆科技学院 | Sound signal processing method used for measuring oil well working fluid level depth |
-
2013
- 2013-01-17 CN CN 201320025425 patent/CN203008893U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821499A (en) * | 2014-02-20 | 2014-05-28 | 重庆科技学院 | Sound signal processing method used for measuring oil well working fluid level depth |
| CN103821499B (en) * | 2014-02-20 | 2017-03-29 | 重庆科技学院 | For the audio signal processing method of fluid level depth of oil well detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |