CN201203610Y

CN201203610Y - Device for determining turbine oil transformer oleic acid value

Info

Publication number: CN201203610Y
Application number: CNU200820070545XU
Authority: CN
Inventors: 王伟; 赵常青
Original assignee: CHANGZHOU HANGSENG ELECTRON INSTRUMENT Co Ltd
Current assignee: HENNAN HENGSHENG ELECTRONIC INSTRUMENT CO., LTD.
Priority date: 2008-05-07
Filing date: 2008-05-07
Publication date: 2009-03-04
Anticipated expiration: 2018-05-07

Abstract

The utility model relates to an oil acid value tester for steam-turbine oil transformer oil, specifically to the automatic test of oil acid value of power system steam turbine oil and transformer oil. The instrument has a turntable, a test cup, a light source, a photoelectric converter and a pump body inside; the turntable has a turntable motor and a mixing motor below, the test cup is arranged on the turntable; an extract liquid needle, a neutralizer needle are arranged above the test cup, and communicated with an extract liquid bottle and a neutralizer bottle via liquid convey pipes, each of the liquid convey pipes has a pump body, a counting optical coupler is disposed between the neutralizer needle and the test cup; each of the upper and lower parts of one side of the test cup has a light source, the other side is provided with photoelectric converters corresponding to the light sources; and each of the pump body, the turntable motor, the mixing motor, the counting optical coupler and the photoelectric converter is respectively connected with a single chip microcomputer. The utility model overcomes the sensory difference existing in manual titration, greatly improves the accuracy of the testing result, and is capable of automatically and continuously testing a plurality of oil samples.

Description

Steam turbine oil transformer oil acid value measuring instrument

One, technical field

The utility model belongs to a kind of oleic acid pH-value determination pH instrument, is specifically related to the electric system steam turbine oil, the transformer oil acid number is measured automatically.

Two, background technology

In electric system, whether the oleic acid value of steam turbine oil, transformer oil meets national standard, is to be related to a whether normal important indicator of power supply.At present, the acid value measuring of steam turbine oil, transformer oil adopts manual titration's method, and the manual titration adds the indicator that contains neutralizer in oil, rely on naked eyes according to change color, judges the result of titration, by calculating acid number.Because the mensuration personnel there are differences the color sensitivity, the judgement of titration end-point be there are differences equally, therefore, it is very inaccurate to obtain data; The manual titration leans on manually-operated fully, the operating cost duration, and efficient is low; In addition, during the manual titration, operating personnel directly contact indicator probably, and these indicator mostly have certain corrosivity and toxicity, can cause certain infringement to human body.

Three, summary of the invention

The purpose of this utility model is to overcome in the prior art measures that the acid number data are inaccurate, operating efficiency is low, problems such as infringement health of human body, and provide a kind of determination data accurate, automatical and efficient, safe acid value measuring instrument.

The technical solution adopted in the utility model is: be provided with rotating disk, test cup, light source, photoelectric commutator, the pump housing in the instrument container; The rotating disk below is provided with rotary tray motor, stirring motor, and the test cup is arranged on the rotating disk; Test cup top is provided with extract syringe needle, neutralizer syringe needle, and extract syringe needle, neutralizer syringe needle communicate with extract bottle, neutralizer bottle by woven hose respectively, respectively are provided with a pump housing on the woven hose, is provided with a counting light Europe between neutralizer syringe needle and the test cup; Top, the bottom of test cup one side respectively are provided with a light source, and opposite side is separately installed with photoelectric commutator over against described light source; The pump housing, rotary tray motor, stirring motor, counting light Europe, photoelectric commutator are connected with single-chip microcomputer respectively.

For making extract, indicator in filling process, flow steadily, can accurately control extract, indicator use amount, the described pump housing can be peristaltic pump; Be threaded for avoiding conventional peristaltic pump fixedly to adopt during woven hose, rigidly fix woven hose, thereby extruding woven hose, be easy to damage woven hose, peristaltic pump pump head of the present utility model comprises that one is arranged on the gland above the roller dish, be provided with in the gland and the suitable briquetting of roller dish peripheral shape, be provided with elastic cushion block between briquetting and the gland.

For reducing entering of extraneous light, better assurance photoelectric commutator is interference-free, and realizes that test cup turnover storehouse process is automatic, and instrument container is provided with and is the coloured glass door, be provided with the door motor that a control door opens and closes in the instrument container, this door motor is connected with single-chip microcomputer.

Good effect of the present utility model is: easy to operate, titration end-point is judged and control by light sensation device, single-chip microcomputer, has overcome the sense organ difference that the manual titration exists, and has improved the measurement result accuracy greatly; But a plurality of selected oil samples of METHOD FOR CONTINUOUS DETERMINATION, liquid feeding, titration, stirring, judgement, calculating, the whole process of display result are continuous automatically, and work efficiency is significantly improved; Handling safety reduces person contact indicator chance, effectively avoids impairing one's health, and is highly suitable for electric system and applies.

Four, description of drawings

Fig. 1 cuts open structural representation for the utility model office;

Fig. 2 looks partly cut-away's synoptic diagram for the left side of Fig. 1;

Fig. 3 is the backsight partly cut-away synoptic diagram of Fig. 1;

Fig. 4 is a peristaltic pump front view of the present utility model;

Fig. 5 is the synoptic diagram behind the peristaltic pump Unscrew of the present utility model;

Fig. 6 is a code-wheel schematic top plan view of the present utility model.

Five, embodiment

As shown in Figure 1, can be provided with coloured glass door 18 on the instrument container 5, instrument container 5 internal upper parts are provided with the door motor 12 that a control door 18 opens and closes, and are provided with rotating disk 2, test cup 17, light source 9, light source 8, photoelectric commutator 10, photoelectric commutator 7, peristaltic pump 6 and peristaltic pump 22 shown in Figure 2 in the instrument container 5; Rotating disk 2 belows are provided with rotary tray motor 3, stirring motor 4, and test cup 17 is located in the cup 19 of rotating disk 2; As Fig. 1, shown in Figure 6, for ease of the comparative determination result, rotating disk 2 tops are equipped with a code-wheel 20 that has a numeral number, test cup 17 tops are provided with extract syringe needle 16, neutralizer syringe needle 15, and extract syringe needle 16, neutralizer syringe needle 15 communicate with extract bottle 23, neutralizer bottle 24 among Fig. 3 by woven hose 13, woven hose 14 respectively; As shown in Figure 2, wherein, woven hose 13 is provided with peristaltic pump 6, is used for extract and carries, and woven hose 14 is provided with peristaltic pump 22, is used for neutralizer and carries; Be provided with a counting light Europe 11 between neutralizer syringe needle 15 and the test cup 17; Top, the bottom of test cup 17 1 sides are respectively equipped with light source 9, light source 8, and opposite side is equipped with photoelectric commutator 10, is used to judge extraction results over against light source 9; Over against light source 8 photoelectric commutator 7 is installed, is used to judge neutralization results.

Light source 8 emits beam and passes test cup 17 and be radiated on the photoelectric commutator 7, and photoelectric commutator 7 is converted into electric signal according to change color with light signal, is transferred to single-chip microcomputer 1, and the control titration stops.

For realizing automatic control, peristaltic pump 6, peristaltic pump 22, rotary tray motor 3, stirring motor 4, door motor 12, counting light Europe 11, photoelectric commutator 10, photoelectric commutator 7 are connected with single-chip microcomputer 1 respectively, and the output terminal of single-chip microcomputer 1 connects LCDs 21, printer respectively.

As Fig. 4, shown in Figure 5, include a rotating gland 32 that is located at outside the roller dish 33 on the pump head of peristaltic pump 6, peristaltic pump 22, gland 32 1 sides are connected with pump head base 35 by little rotating shaft 34, and opposite side is fixed with a driving lever 25; Roller dish 33 peripheries are provided with a plurality of rollers 31, are provided with in the gland 32 and roller 31 contacted briquettings 28, and briquetting 28 edges are arcuation, and are suitable with roller dish 33 peripheral shape; Be provided with elastic cushion block 30 between briquetting 28 and the gland 32; Driving lever 25 is connected with gland 32 by stage clip 29, and driving lever 25 is provided with a cotter way 27, and pump head base 35 is provided with a register pin 26, cotter way 27 and register pin 26 clampings; When register pin 26 was positioned at cotter way 27, driving lever 25 was locked, and gland 32 positions are fixed simultaneously; When removing locking state, stir driving lever 25, register pin 26 breaks away from cotter way 27, and gland 32 rotates around little rotating shaft 34 under driving lever 25 drives, and pump head is opened.

During peristaltic pump 6 work, woven hose is crushed between briquetting 28 and the roller 31, when roller dish 33 rotates, relies on the elastic compression and the recovery of elastic cushion block 30, regulates the degree of tightness in woven hose and briquetting 28 gaps, has avoided woven hose to be extruded and has broken.

The course of work of the present utility model is as follows: as shown in Figure 1 and Figure 2, turn on the power switch, peristaltic pump 6, peristaltic pump 22 detect by the single-chip microcomputer 1 signal automatic vent of giving; Detect and finish, door 18 is opened automatically, and quantitative oil to be measured is put into measuring cup 17; Select the display apparatus test interface buttons, door 18 is closed, single-chip microcomputer 1 is given 6 one signals of peristaltic pump, peristaltic pump 6 is started working, a certain amount of extract is injected measuring cup 17, simultaneously stirring motor 4 starts, and makes the acid of the better extraction of extract in fuel-displaced by stirring, judges by light source 9, photoelectric commutator 10 whether extracts reach required amount; When reaching required amount, single-chip microcomputer 1 control peristaltic pump 6 stops, peristaltic pump 22 starts, constantly drip neutralizer in measuring cup 17, calculate the neutralizer dripping quantity by counting light Europe 11, the color of mixed liquors such as neutralizer, oleic acid constantly changes, 7 changes of photoelectric commutator according to light signal, the electric signal that changes is passed to single-chip microcomputer 1, and when reaching requirement, single-chip microcomputer 1 control peristaltic pump 22 and stirring motor 4 quit work; Rotary tray motor 3 begins to rotate to next cup position, repeats above-mentioned test process then.

By the time all test cup tests are finished, single-chip microcomputer 1 is stored institute's test data and is shown on LCDs 21, also can connect the printer prints data simultaneously.This tester can once be tested 6 different oil samples, and can preserve 60 groups of test datas automatically, can read at any time and print data, can satisfy the analysis of electric system oleic acid value and use.

Claims

1, steam turbine oil transformer oil acid value measuring instrument is characterized in that: be provided with rotating disk (2), test cup (17), light source (8,9), photoelectric commutator (10,7), the pump housing in the instrument container (5); Rotating disk (2) below is provided with rotary tray motor (3), stirring motor (4), and test cup (17) is arranged on the rotating disk (2); Test cup (17) top is provided with extract syringe needle (16), neutralizer syringe needle (15), extract syringe needle (16), neutralizer syringe needle (15) communicate with extract bottle (23), neutralizer bottle (24) by woven hose (13,14) respectively, woven hose respectively is provided with a pump housing on (13,14), is provided with a counting light Europe (11) between neutralizer syringe needle (15) and the test cup (17); Top, the bottom of test cup (17) one sides respectively are provided with a light source (9,8), and opposite side is separately installed with photoelectric commutator (10,7) over against described light source (9,8); The pump housing, rotary tray motor (3), stirring motor (4), counting light Europe (11), photoelectric commutator (10,7) are connected with single-chip microcomputer (1) respectively.

2, steam turbine oil transformer oil acid value measuring instrument according to claim 1, it is characterized in that: the described pump housing can be peristaltic pump (6,22), the pump head of peristaltic pump (6,22) comprises that one is arranged on the gland (32) above the roller dish (33), be provided with in the gland (32) and the suitable briquetting (28) of roller dish (33) peripheral shape, be provided with elastic cushion block (30) between briquetting (28) and the gland (32).

3, steam turbine oil transformer oil acid value measuring instrument according to claim 1, it is characterized in that: coloured glass door (18) is installed on the instrument container (5), be provided with a door motor (12) in the instrument container (5), described door motor (12) is connected with single-chip microcomputer (1).