CN2066129U - Instantaneous delivery indicating device - Google Patents
Instantaneous delivery indicating device Download PDFInfo
- Publication number
- CN2066129U CN2066129U CN 90210403 CN90210403U CN2066129U CN 2066129 U CN2066129 U CN 2066129U CN 90210403 CN90210403 CN 90210403 CN 90210403 U CN90210403 U CN 90210403U CN 2066129 U CN2066129 U CN 2066129U
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- indicating device
- assembled
- revolving part
- inductance
- instantaneous delivery
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Abstract
The utility model relates to an instantaneous flow rate indicating device, solving the problem of the inability of the existing mechanical flowmeters to meter instantaneous flow rate. The utility model has the technical proposal that the speed reducer of a mechanical flowmeter is assembled with a magnetoelectric sensor which comprises a rotating part and an inductance part; the rotating part is assembled with the output shaft of the speed reducer; the inductance part is fixed on the board shelf of the speed reducer; the output end of the inductance part is connected with a rectifying filtering circuit, and the terminal end is connected with an ammeter. The output shaft drives the rotating part to rotate, and induction current is generated by the inductance part to drive the ammeter to display. The utility model has the advantages of simple structure, small size, no power source requirement, and convenient assembly with various mechanical flowmeters to enhance the instantaneous flow rate metering function of the mechanical flowmeters.
Description
The utility model belongs to the indicator for flow rate in the instrument and meter, particularly a kind of instantaneous delivery indicating device.
Machineries such as existing volume-displacement, propeller flowmeter show that the flowmeter of integrated flux is divided into metering section, gear reduction part and display part three parts and forms.Wherein, the display part is made up of character wheel counter or pointer counter, can only show the cumulative volume value by flowmeter, and no instantaneous delivery shows.When the user wonders instantaneous delivery, need to observe the cumulative volume value that counter is passed by within a certain period of time,, draw average instantaneous delivery again divided by during this period of time.It is time-consuming, bothersome to measure instantaneous delivery in this way, and this has just limited the range of application of traditional high precision flows such as volume-displacement, propeller flowmeter.In addition, in the metering to the very big fluid of oil field or other fluctuations in discharge, too much when accidentally flow control valve being left, when flow surpasses the maximum useful discharge of flowmeter, flowmeter is damaged, or close flow control valve too small, flow is during less than the minimum use traffic of flowmeter, cause the flowmeter error to strengthen, influenced measuring accuracy.
The flowmeter of being furnished with secondary instrument of at present external, domestic production can show integrated flux and instantaneous delivery.But the secondary instrument complex structure is bulky, and price is very high, needs power supply and blast resistance construction, and is just inapplicable in open-air operating modes such as oil fields.
The purpose of this utility model is at the problems referred to above, provide a kind of simple in structure, volume is little, easy for installation, without the instantaneous delivery indicating device of power supply, can be directly installed on the standard machinery formula and show on the flowmeter of integrated flux, increase instantaneous Presentation Function, enlarge its range of application, also can avoid simultaneously owing to use and cause damage accidentally, prolong instrument serviceable life.
The purpose of this utility model is achieved in that on the speed reduction unit of mechanical flow meter and is assembled with magnetoelectric transducer, magnetoelectric transducer is made up of revolving part and inductance spare, revolving part is assembled on the output shaft of speed reduction unit, and inductance spare is fixed on the grillage of speed reduction unit; Inductance spare output terminal is communicated with by two diodes and two current rectifying and wave filtering circuits that electrochemical capacitor is formed, and the current rectifying and wave filtering circuit terminal connects reometer.When the output shaft driven rotary part of speed reduction unit rotated, inductance spare produced induction current, and behind current rectifying and wave filtering circuit, the drive current table shows that the revolving part rotation is fast more, and reometer numerical value shows big more, proportional.
Gapped between above-mentioned revolving part and the inductance spare, the induction current size that the size in gap and inductance spare produce is inversely proportional to.Inductance spare is fixedly connected on the support that is assembled on the grillage, and the mounting hole of support is oval slotted hole, by the gap length between its adjustment revolving part and the inductance spare.
Below in conjunction with accompanying drawing the utility model embodiment is described further:
Fig. 1 is the utility model embodiment one structural representation.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the utility model embodiment two structural representations.
Fig. 4 is the utility model electrical schematic diagram.
Shown in the figure: 1 reometer, 2 counters, 3 screws, 4 supports, 5 telefaults, 6 annular permanent magnnets, 7 output shafts, 8 transmission shafts, 9 grillages, 10 oval slotted holes, 11 convex-concave gears, 12 bar permanent magnet cores, 13 telefaults.
See Fig. 1,2,4, the utility model embodiment one structure: revolving part is an annular permanent magnnet 6, and it fixedly is assembled on the output shaft 7 of speed reduction unit, and output shaft 7 is by the driving cog engagement of driving cog on it and transmission shaft 8; Inductance spare is the telefault 5 of ribbon core, and it is fixedly connected on the support 4, and support 4 is fixed on the grillage 9 by screw 3.Telefault 5 is communicated with the current rectifying and wave filtering circuit of being made up of D1, D2, C1, C2, and four rectifying and wave-filtering elements are assembled in the space in the reometer 1, and current rectifying and wave filtering circuit is communicated with reometer 1, and reometer 1 is installed on the frame plate of counter 2.The mounting hole of support 4 is oval slotted hole 10, adjust the gap length of telefault 5 and annular permanent magnnet 6 by it, (flow is big more when annular permanent magnnet 6 rotates with output shaft 7, rotating speed is fast more), at telefault 5(L) two ends produce the faint induction current of near sinusoidal ripple, become DC current through behind the current rectifying and wave filtering circuit, drive high sensitivity reometer 1(A) show.Because induction current is directly proportional with the magnet rotating speed, be inversely proportional to the gap of magnet and telefault, therefore suitable adjusting play makes the size of instantaneous delivery corresponding one by one with the displayed value of reometer 1, and makes maximum flow consistent with reometer full scale electric current.
See Fig. 3, embodiment two structures of the present utility model: revolving part is the gear 11 that has shaggy tooth, inductance spare is the telefault 13 of tape shape permanent magnet core 12, gear 11, the assembling position of telefault 13 and the structure of mode and adjusting play are all with embodiment one, when concavo-convex gear 11 together rotates with output shaft 7, permanent magnet core 12 produces the tooth top of magnetic line of force subtend gear 11, the rotation of concavo-convex gear 11 causes the variation of magnetic resistance, magnetic flux changes thereupon, therefore in telefault 13, produce induction current, its size is proportional to the number of teeth of gear 11 and the product of its rotating speed, and is inversely proportional to gap length.
In the such scheme, if the space of speed reduction unit allows, revolving part can be assembled on the transmission shaft 8.
The utility model has the advantages that: simple in structure, volume is little, without power supply, can be assembled on the various mechanical flowmeters to direct convenience, be specially adapted to also can be used on other flowmeter that need to measure instantaneous delivery on the flowmeter of metering oil, gas, water in oil field.
Claims (5)
1, a kind of instantaneous delivery indicating device, the speed reduction unit, the counter that comprise the mechanical flow meter, it is characterized in that: on speed reduction unit, be assembled with magnetoelectric transducer, magnetoelectric transducer is made up of revolving part and inductance spare, revolving part is assembled on the output shaft of speed reduction unit, and inductance spare is fixed on the grillage of speed reduction unit; Inductance spare output terminal is communicated with by two diodes and two current rectifying and wave filtering circuits that electrochemical capacitor is formed, and the current rectifying and wave filtering circuit terminal connects reometer.
2, instantaneous delivery indicating device according to claim 1 is characterized in that: gapped between revolving part and the inductance spare, inductance spare is fixedly connected on the support that is assembled on the grillage, and the mounting hole of support is the oval slotted hole of adjusting play size.
3, instantaneous delivery indicating device according to claim 1, it is characterized in that: revolving part is an annular permanent magnnet, inductance spare is the telefault of ribbon core.
4, instantaneous delivery indicating device according to claim 1 is characterized in that: revolving part is the gear of being made by permeability magnetic material that has shaggy tooth, and inductance spare is the telefault of tape shape permanent magnet core.
5, instantaneous delivery indicating device according to claim 1, it is characterized in that: revolving part can be assembled on the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210403 CN2066129U (en) | 1990-04-18 | 1990-04-18 | Instantaneous delivery indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210403 CN2066129U (en) | 1990-04-18 | 1990-04-18 | Instantaneous delivery indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2066129U true CN2066129U (en) | 1990-11-21 |
Family
ID=4890315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90210403 Withdrawn CN2066129U (en) | 1990-04-18 | 1990-04-18 | Instantaneous delivery indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2066129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758530A (en) * | 2020-06-02 | 2021-12-07 | 中国石油化工股份有限公司 | Electronic flowmeter |
-
1990
- 1990-04-18 CN CN 90210403 patent/CN2066129U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758530A (en) * | 2020-06-02 | 2021-12-07 | 中国石油化工股份有限公司 | Electronic flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |