CN202110158U - Super-standard alarm device for water content of lubricating oil - Google Patents
Super-standard alarm device for water content of lubricating oil Download PDFInfo
- Publication number
- CN202110158U CN202110158U CN2011200548126U CN201120054812U CN202110158U CN 202110158 U CN202110158 U CN 202110158U CN 2011200548126 U CN2011200548126 U CN 2011200548126U CN 201120054812 U CN201120054812 U CN 201120054812U CN 202110158 U CN202110158 U CN 202110158U
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- China
- Prior art keywords
- chip computer
- capacitive transducer
- signal
- moisture
- lubricating oil
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Abstract
The utility model provides a super-standard alarm device for water content of lubricating oil, mainly comprising a capacitive transducer, a safety barrier oscillating circuit, a single chip computer, a 4-bit digital display and a voice alarm device, wherein the capacitive transducer is inserted in the upper part at the bottom of a lubricating oil box, and the single chip computer and a dual meter are arranged on a switchboard in a duty room; the single chip computer selects a single chip computer in an AT899C5R series, and a 8KROM 256 bytes-containing RAM (random access memory) can be used for directly driving an LED (light emitting diode); and the capacitive transducer selects an HS1100 capacitive transducer, a water containing signal measured by the capacitive transducer is converted into a square signal by an NE555 oscillator of a safety barrier and transmitted to a 16-bit binary counter of the single chip computer, and a timely-recorded pulse signal is memorized in an inner buffer zone, linearly corrected by means of digital filtering in a segmenting way, calibrated with water containing level, and finally transmitted to the display so as to be displayed and to the voice alarm device so as to alarm. The super-standard alarm device is simple in circuit, sensitive in reaction, and reliable in running, so that the safe operation of a high-pressure water injection pump is guaranteed.
Description
One, technical field
The utility model relates to the moisture warning device that exceeds standard of a kind of high pressure water injection pump lubricating oils.
Two, background technology
The good lubrication of equipment is the high pressure water-injection pump basic guarantee of running continuously; The waterflood pump bearing shell of centrifugal high-pressure water injecting pump station mostly adopts the forced lubrication mode; Lubricating system mainly is made up of grease-box, lube oil pump, cooling filter, owing to reasons such as the waterflood pump packing thorn leakage that moves, cooling filter perforation, causes grease-box to be intake in a large number; Cause lubricating oil serious emulsification, rotten, cause device damage.Grease-box is intake in a large number, serious emulsification, variable color, could estimate out; Fuel tank is intake on a small quantity, can not in time find.Changing rotten lubricating oil needs full station to stop production, and the water injection rate that has a strong impact on full ore deposit steadily injects.
Three, summary of the invention
The purpose of the utility model provides the moisture warning device that exceeds standard of a kind of lubricating oil, overcome that above-mentioned prior art exists defective, guarantee the normal operation of high pressure water-injection pump.
The technical scheme of the utility model realizes in the following manner:
The utility model mainly is made up of capacitor sensor, safety barrier oscillatory circuit, one-chip computer, 4 bit digital displays and phonetic alarm; It is characterized in that capacitive transducer is inserted in the top, the end of grease-box, one-chip computer and secondary table are installed on the duty room switchboard; One-chip computer is selected the one-chip computer in the AT89C52 series for use, and the RAM that includes 8KR0M 256 bytes is driving LED directly; Capacitive transducer is selected the HS1100 capacitive transducer for use; Capacitive transducer is surveyed the square-wave signal of moisture signal after the conversion of the NE555 of safety barrier oscillator and is passed to 16 binary counters of one-chip computer; TG record pulse signal deposits core buffer in; Proofread and correct through the digital filtering piecewise linearity, calibrate moisture grade and pass to the display demonstration at last and pass to the phonetic alarm warning.
It is the T that sends into one-chip computer from the 3rd pin of NE555 oscillator that capacitive transducer is surveyed the square-wave signal of moisture signal after the conversion of NE555 oscillator
1, T
1Working method 1 is 16 binary counters, the time recording umber of pulse, and deposit core buffer in, T
0Working method 2 is the timer T of automatic refitting mode
0, T
1, T
0Equivalent frequency meter of common composition, the pulse signal of this moment is undressed moisture data.
The signal that one-chip computer is passed to 4 bit digital displays is driver 74LS164 and P through series-parallel 47 sections light emitting diode digital indicator sections
1The interface concurrent signal cooperates 47 sections charactrons of driving to show moisture data.
One-chip computer passes through P
1Interface is passed to language module driving loudspeaker and is sent the language alarm signal.
The utlity model has following advantage:
Circuit is simple, be quick on the draw, reliable, divides three basic, normal, high language alarms that carry out of water percentage to make the operator on duty in time grasp the moisture situation of lubricating oil in the lubrication box, in time the safe operation of high pressure water-injection pump has been guaranteed in processing.
Four, description of drawings
The circuit frame principle figure of Fig. 1-the utility model;
Fig. 2-the utility model circuit theory diagrams.
Component symbol explanation among the figure:
C: contain water sensor HS1100, equivalence is a variable condenser in circuit;
C
1: 0.01 μ F (microfarad) container, the antijamming capability of raising NE555, suppression device temperature drift;
C
2: electrolytic condenser, the positive pulse that produces about 5V during energising starts the one-chip computer user program;
C
3, C
4: 20P (picofarad) capacitor, the clock capacitor of computing machine;
R
A, R
B, R
3, R
4: carbon resister, step-down, restriction electric current;
R
5～～R
11: resistance, the current-limiting resistance of 7 sections charactrons;
VD: silicon diode, improve waveform;
WD: silicon voltage regulator diode, deboost output is no more than 5V;
NE555: timer integrated circuit, form a square-wave oscillator jointly with RA, RB, C;
AT89C52:8 position one-chip computer carries out data operation and handles in this device;
74LS164:4 position 7 sections LED light emitting diodes nixie display segment driver;
74LS08: with door, the bit driver of 47 n segment display ns;
APR9600: the speech recording and reproducing storer that segmentation triggers;
SP: loudspeaker;
K: SR;
R
3, R
4, K: after the hand-reset, computing machine energising, press the positive pulse that K produces about 5V, startup computer user program;
12M:12MHZ quartz oscillator (computer clock).
Five, embodiment
For further disclosing the technical scheme of the utility model, elaborate through embodiment below in conjunction with Figure of description:
The utility model mainly is made up of capacitive transducer HS1100, safety barrier oscillatory circuit NE555, one-chip computer AT89C52,4 bit digital displays and phonetic alarm; It is characterized in that capacitive transducer is inserted in the top, the end of grease-box, one-chip computer and secondary table are installed on the duty room switchboard; One-chip computer is selected the one-chip computer in the AT89C52 series for use, and the RAM that includes 8KR0M 256 bytes is driving LED directly; Capacitive transducer is selected the HS1100 capacitive transducer for use; Capacitive transducer is surveyed the square-wave signal of moisture signal after the conversion of the NE555 of safety barrier oscillator and is passed to 16 binary counters of one-chip computer; TG record pulse signal deposits core buffer in; Proofread and correct through the digital filtering piecewise linearity, calibrate moisture grade and pass to the display demonstration at last and pass to the phonetic alarm warning.
The employing of element and principle performance
1, capacitive transducer adopts the HS1100 humicap that French HUMIREL company produces
Precision: ± 2% favorable linearity output;
Range: 1～99%;
Working temperature :-40～100 ℃;
Humidity output temperature influence is less, and normal temperature uses and need not compensation;
Response time: 5 seconds;
Interchangeability is good, need not proofread and correct;
Electric capacity and moisture variation 0.34pf (picofarad)/1%, water cut is big more, and capacitance is big more;
Long-time stability and reliability: year drift value ± 0.5%;
Be applicable to linear voltage output and two kinds of circuit of frequency output.
HS1100 is equivalent to a capacitor in circuit; Its electric capacity increases along with the increase of survey medium moisture, how to change the changes in capacitance amount into signal that computing machine is easy to accept accurately? For reducing cost, simplify hardware circuit; I have adopted simple and reliable NE555 square-wave oscillator circuit; HS1100 is placed the NE555 oscillatory circuit, convert the variation of capacitance into be inversely proportional to it voltage-frequency signal, can be directly by computer acquisition.
2, the NE555 oscillatory circuit is as shown in Figure 2:
R
A, R
BWith measure capacitor C, constitute charge circuit to C, the T end has constituted the discharge loop to C again through the transistor shorted to earth of chip internal, and 2,6 ends are linked to each other is incorporated into comparer in the sheet, just becomes a typical square-wave oscillator.
C
1Be used to improve the chip antijamming capability, the suppression device temperature is floated.VD improves waveform symmetry, R
B, WD constitutes safety barrier, the output of restriction energy.
3, two of oscillator temporary stable states are following: power supply V at first
CC is logicalCross R
A, R
BTo the C charging, t is after the duration of charging for process, U
C(voltages at C two ends) reach the high triggering level of comparer in the sheet, about 0.67V
CC(supply voltage), this moment, output pin 3 ends were low level by the high level bust, then, through R
BDischarge, t is after discharge time for process, U
C(voltages at C two ends) drop to the about 0.33V of low triggering level of comparer
CC(supply voltage), at this moment, output pin 3 ends are risen to by low level and are high level.So go round and begin again, form square wave output, wherein the time of discharging and recharging is:
T
Charging=0.693R
A* C
T
Discharge=0.693R
B* C
R
A=R
BThe time T
Charging=T
Discharge
Thereby the square wave frequency of output is F=0.722/R
A* C.It is thus clear that the Water in oil amount just converts the frequency signal that is inversely proportional to it into through measuring oscillating circuit.
4, host machine part is selected directly driving LED (light emitting diode) of RAM (read-write memory) that the AT89C52 series monolithic includes 8KR0M (ROM (read-only memory)) 256 bytes for use, and high-performance, the low price one-chip computer compatible with 8051 series monolithic software and hardwares.
5, the square-wave pulse signal of electric capacity after 555 oscillator conversion sent into single-chip microcomputer by 555 tripod T is measured in the importation
1, T
1Working in mode 1, is 16 system counters, the time recording umber of pulse, and deposit core buffer (T in
0Work in mode 2 and be the timer of automatic refitting mode).T
1, T
0Equivalent frequency meter of common composition.The frequency number of this moment is exactly untreated moisture data, after handling through the correction of digital filtering piecewise linearity, calibration etc., delivers to demonstration and acoustic alarm unit again.
6, display part
The signal of being sent here by the main frame serial port gets into serial parallel converter 74LS164 and P
1The interface concurrent signal cooperates 47 sections LED charactron video datas of driving.
7, audible alarm part
Main frame drives loudspeaker through the P1 port output signal through the APR9600 voice module.Send acoustic informations such as flooded condition, reason, disposal route, the prompting person on duty is handling failure how.
Owing to adopted the HS1100 capacitive transducer of function admirable; The AT89C52 one-chip computer has obtained the linear approximate relationship of frequency signal and water cut; Carry out software filtering through computing machine; Piecewise linearity is proofreaied and correct and data processing such as computation of table lookup, can the rectification building-out frequency drift and the error that causes of components and parts.Particularly under maximum conditions after the HS1100 water logging, rapid decline of oscillator signal even failure of oscillation but through still correctly quoting the audio alerts of a large amount of water inlets in the fuel tank after the Computer Processing.
Claims (4)
1. moisture warning device that exceeds standard of lubricating oil; Mainly form by capacitive transducer, safety barrier oscillatory circuit, one-chip computer, 4 bit digital demonstration phonetic alarm; It is characterized in that the top, the end of the plug in grease-box of capacitive transducer, one-chip computer and secondary table are installed on the duty room switchboard; One-chip computer is selected the one-chip computer in the AT89C52 series for use, and the RAM that includes the 8KR0M256 byte is driving LED directly; Capacitive transducer is selected for use the HS1100 capacitive transducer to survey the square-wave signal of moisture signal after the conversion of the ZE555 of safety barrier oscillator and is passed to 16 system counters of one-chip computer; TG record pulse signal deposits the internal buffer in; Proofread and correct through the digital filtering piecewise linearity, calibrate moisture grade and pass to the display demonstration at last and pass to the phonetic alarm warning.
2. the moisture warning device that exceeds standard of lubricating oil according to claim 1 is characterized in that it is the T that the 3rd pin of NE555 oscillator is sent into one-chip computer that capacitive transducer is surveyed the square-wave signal of moisture signal after the conversion of NE555 oscillator
1
3. the moisture warning device that exceeds standard of lubricating oil according to claim 1 is characterized in that it is driver 74LS164 and P through series-parallel 47 sections light emitting diode digital indicator sections that one-chip computer is passed to the signal of 4 bit digital displays
1The interface concurrent signal cooperates 47 sections charactrons of driving to show moisture data.
4. the moisture warning device that exceeds standard of lubricating oil according to claim 1 is characterized in that one-chip computer passes through P
1Interface is passed to language module driving loudspeaker and is sent the language alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200548126U CN202110158U (en) | 2011-02-23 | 2011-02-23 | Super-standard alarm device for water content of lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200548126U CN202110158U (en) | 2011-02-23 | 2011-02-23 | Super-standard alarm device for water content of lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110158U true CN202110158U (en) | 2012-01-11 |
Family
ID=45435603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200548126U Expired - Fee Related CN202110158U (en) | 2011-02-23 | 2011-02-23 | Super-standard alarm device for water content of lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235990A (en) * | 2011-02-23 | 2011-11-09 | 中国石油化工股份有限公司 | Warning device for lubricant with over-standard water content |
| CN108459057A (en) * | 2017-02-20 | 2018-08-28 | 斯凯孚公司 | The method and system of condition monitoring |
-
2011
- 2011-02-23 CN CN2011200548126U patent/CN202110158U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235990A (en) * | 2011-02-23 | 2011-11-09 | 中国石油化工股份有限公司 | Warning device for lubricant with over-standard water content |
| CN102235990B (en) * | 2011-02-23 | 2016-05-04 | 中国石油化工股份有限公司 | Warning device for lubricant with over-standard water content |
| CN108459057A (en) * | 2017-02-20 | 2018-08-28 | 斯凯孚公司 | The method and system of condition monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120223 |