CN2784890Y - Differential force type magnetic levitation water level gauge - Google Patents
Differential force type magnetic levitation water level gauge Download PDFInfo
- Publication number
- CN2784890Y CN2784890Y CN 200520028424 CN200520028424U CN2784890Y CN 2784890 Y CN2784890 Y CN 2784890Y CN 200520028424 CN200520028424 CN 200520028424 CN 200520028424 U CN200520028424 U CN 200520028424U CN 2784890 Y CN2784890 Y CN 2784890Y
- Authority
- CN
- China
- Prior art keywords
- volumetric cylinder
- water level
- interior magnet
- magnet steel
- outer steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a differential force type magnetic suspension water level gauge which belongs to the technical field of water level measurement. The utility model comprises a volumetric cylinder, a measuring hammer, inner magnetic steel, a protective jacket of the inner magnetic steel, a supporting frame, a transmitter for traction force, outer magnetic steel, a protective jacket of the outer magnetic steel and a secondary instrument for displaying water levels, wherein the volumetric cylinder is communicated with a boiler through two connecting pipes; the measuring hammer is positioned in the volumetric cylinder; the inner magnetic steel is fixed at the upper end of the measuring hammer by the protective jacket of the inner magnetic steel; the lower end of the supporting frame is fixed on the volumetric cylinder; the transmitter for traction force is fixed at the upper end of the supporting frame; the outer magnetic steel is connected with the measuring end of the transmitter for traction force by the protective jacket of the outer magnetic steel; the measuring hammer is stably suspended in the volumetric cylinder owing to the interaction between a magnetic field formed by the outer magnetic steel and a magnetic field formed by the inner magnetic steel; the signal output end of the transmitter for traction force is connected with the secondary instrument for displaying water levels. The utility model is used for measuring a water level by measuring the difference value of reference gravity measured by the transmitter for traction force and the buoyancy force of the measuring hammer and converting the difference value into electric quantity. The measured value is a continuous variable, and the measuring precision is high.
Description
Technical field
The utility model belongs to the level measuring technical field, relates to a kind of differential force type magnetic suspension water level gauge.
Background technology
At present had multiple measurement means in the fields of measurement of water level, for example: direct-reading water level gauge, differential pressure water level gauge, electric contact point fluviograph, magnetic float water level gauge etc. on the spot.Though these water level gauges all have characteristics separately, defective is separately also all arranged, for example on the spot water level gauge leak easily, the mica sheet fouling, have a strong impact on its display effect; Electric contact point fluviograph is to measure water level by electrode, and the setting of electrode is subjected to the restriction of quantity, and certain interval is arranged between each electrode, and measuring accuracy is reduced, and does not eliminate blind zone problem; The differential pressure water level gauge is measured water level by the reference level of water, can not put into operation immediately owing to form reference level when playing stove; The floating water level gauge of magnetic is measured water level by the position of measuring float, and float upwards floats under buoyancy must overcome gravity of self and the friction force between float and volumetric cylinder inwall, must bring the hysteresis problem, and measuring accuracy is reduced.
Summary of the invention
In order to overcome the defective that prior art exists, the utility model utilizes magnetic field force that the measurement hammer is suspended in the volumetric cylinder, difference by pulling force transmitter witness mark gravity and buoyancy also is converted into electric weight and measures water level, and purpose provides a kind of differential force type magnetic suspension water level gauge.
The utility model comprises volumetric cylinder 1, measures hammer 2, interior magnet steel assembly 18, and interior magnet steel sheath 3, support 5, pulling force transmitter 6, outer steel assembly 19, outer steel sheath 4, water level shows secondary instrument 7.Two connecting legs of the level up and down of volumetric cylinder 1 are connected to the bottom and the top of boiler-steam dome, and volumetric cylinder 1 is communicated with boiler-steam dome, and the top straight length of volumetric cylinder 1 and the bottom of volumetric cylinder 1 are adopted and be tightly connected.Measure hammer 2 and place volumetric cylinder 1, interior magnet steel assembly 18 places interior magnet steel sheath 3, and interior magnet steel sheath 3 is fixed in the upper end of measuring hammer 2, and is positioned at the top straight length of volumetric cylinder 1.Support 5 lower ends are fixed on the volumetric cylinder 1, and pulling force transmitter 6 is fixed in the upper end of support 5; Outer steel assembly 19 places in the outer steel sheath 4, and the upper end of outer steel sheath 4 links to each other with the measuring junction of pulling force transmitter 6, and outer steel sheath 4 covers on the outside of the top straight length of volumetric cylinder 1; Interaction between the magnetic field that magnetic field that outer steel assembly 19 forms and interior magnet steel assembly 18 form makes measures hammer 2 stable suspersions in volumetric cylinder 1.The signal output end of pulling force transmitter 6 shows that with water level secondary instrument 7 links to each other.
Connecting leg and the water in the boiler-steam dome that volumetric cylinder 1 interior water passes through volumetric cylinder 1 lower end are logical, and the gas on volumetric cylinder 1 top communicates with gas in the boiler-steam dome by the connecting leg on volumetric cylinder 1 top, guarantee that the water level in the volumetric cylinder 1 is interior consistent with pressure and boiler-steam dome.In the time of in measuring hammer 2 invasion waters, the value that pulling force transmitter 6 records is the difference of reference to gravitational and buoyancy, reference to gravitational is interior magnet steel assembly 18, interior magnet steel sheath 3, measure hammer 2 into shape, object gravity such as outer steel assembly 19, outer steel sheath 4 and.Water level in boiler-steam dome rises, and the water level in the volumetric cylinder 1 rises simultaneously, and water increases the buoyancy of measuring hammer 2, and the gravity value that this moment, pulling force transmitter 6 recorded diminishes, otherwise then increases.Pulling force transmitter 6 is converted to electric weight with the gravity value that records and is sent to water level demonstration secondary instrument 7, thereby realizes the measurement of water level.
The utility model is measured the hammer stable suspersion in volumetric cylinder owing to utilize magnetic field force to make, by pulling force transmitter witness mark gravity with measure differing from and be converted into electric weight and measuring water level of the suffered buoyancy of hammer, measured value is continuous variable, the problem that does not also have friction force, thereby measure and hysteresis phenomenon can not occur, and precision height.The top straight length of volumetric cylinder and bottom are difficult for producing leakage phenomenon for being tightly connected.
Description of drawings
Fig. 1 is the utility model structural representation, also is the specification digest accompanying drawing.1 is volumetric cylinder among the figure, and 2 measure hammer, 18 interior magnet steel assemblys, magnet steel sheath in 3,5 supports, 6 pulling force transmitters, 19 outer steel assemblys, 4 outer steel sheaths, 7 water levels show secondary instrument, 8,9,10 interior magnet steel posts, 14A, 14B, 14C, 15A, 15B, 15C annular isolation cover, 11,12,13 outer steel rings, 16 sealing gaskets, 17 temperature transmitters.
Embodiment
The utility model adopts cylinder mode as shown in Figure 1, and the top straight length of volumetric cylinder 1 adopts the blue form that is connected of sending out with the bottom of volumetric cylinder 1, junction Gask-O-Seal 16 sealings.
Measuring hammer 2 is column, vertically places volumetric cylinder 1.Interior magnet steel assembly 18 comprises interior magnet steel post 8,9,10, and the three is cylindrical, in being stacked in the magnet steel sheath 3, and with annular isolation overlap 14A, 14B, 14C is spaced apart, the lower end of interior magnet steel sheath 3 is welded in the upper end of measuring hammer 2.Support 5 lower ends are also adopted and are sent out form blue and link to each other with volumetric cylinder 1 straight length.The upper end of pulling force transmitter 6 is fixed by bolts on the support 5, and measuring junction links to each other with outer steel sheath 4 with coupling bolt.Outer steel assembly 19 comprises outer steel ring 11,12,13, and the three is an annular, be stacked in the outer steel sheath 4, with annular isolation overlap 15A, 15B, 15C separates.Interior magnet steel post 8,9,10 and outer steel ring 11,12,13 adopt axial charging.Interior magnet steel post 8 is identical with outer steel ring 11 pole orientation, forms the magnetic field of repelling each other; Interior magnet steel post 9 is different with outer steel ring 12 pole orientation, forms the magnetic field of inhaling mutually.Interior magnet steel post 10 is identical with outer steel ring 13 pole orientation, forms the magnetic field of repelling each other; The effect of three groups of magnetic field magnetic field forces makes measures hammer 2 stable suspersions in volumetric cylinder 1. Annular isolation cover 14A, 14B, 14C, 15A, 15B, 15C adopt nonmagnetic substance, and three groups of magnetic fields are separated, and reduce influencing each other between each magnetic field.
The temperature sensor of temperature transmitter 17 is installed on the Drum Wall, the temperature signal of vapour and water partly is converted to electric weight by the transmitter of temperature transmitter in the boiler-steam dome that temperature sensor picks up, input to water level and show secondary instrument 7, proofread and correct the level measuring deviation that produces owing to variation of temperature, and then realize accurate measurement water level.
Claims (2)
1. a differential force type magnetic suspension water level gauge is characterized in that comprising volumetric cylinder (1), measures hammer (2), interior magnet steel assembly (18), interior magnet steel sheath (3), support (5), pulling force transmitter (6), outer steel assembly (19), outer steel sheath (4), water level shows secondary instrument (7); Two connecting legs of the level up and down of volumetric cylinder (1) are connected to the bottom and the top of boiler-steam dome, and volumetric cylinder (1) is communicated with boiler-steam dome, and the bottom of the top straight length of volumetric cylinder (1) and volumetric cylinder (1) is adopted and is tightly connected; Measure hammer (2) and place volumetric cylinder (1), interior magnet steel assembly (18) places interior magnet steel sheath (3), and interior magnet steel sheath (3) is fixed in the upper end of measuring hammer (2), and is positioned at the top straight length of volumetric cylinder (1); Support (5) lower end is fixed on the volumetric cylinder (1), and pulling force transmitter (6) is fixed in the upper end of support (5); Outer steel assembly (19) places in the outer steel sheath (4), and the upper end of outer steel sheath (4) links to each other with the measuring junction of pulling force transmitter (6), and outer steel sheath (4) covers on the outside of the top straight length of volumetric cylinder (1); The signal output end of pulling force transmitter (6) shows that with water level secondary instrument (7) links to each other.
2. according to the described differential force type magnetic suspension water level gauge of claim 1, it is characterized in that described interior magnet steel assembly (18) comprises interior magnet steel post (8), (9), (10), the three is cylindrical, in being stacked in the magnet steel sheath (3), and spaced apart with annular isolation cover (14A), (14B), (14C); Outer steel assembly (19) comprises outer steel ring (11), (12), (13), and the three is an annular, is stacked in the outer steel sheath (4), and is spaced apart with annular isolation cover (15A), (15B), (15C); Interior magnet steel post 8,9,10 and outer steel ring 11,12,13 adopt axial charging; Interior magnet steel post 8 is identical with outer steel ring 11 pole orientation, and interior magnet steel post 9 is different with outer steel ring 12 pole orientation, and interior magnet steel post 10 is identical with outer steel ring 13 pole orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520028424 CN2784890Y (en) | 2005-03-25 | 2005-03-25 | Differential force type magnetic levitation water level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520028424 CN2784890Y (en) | 2005-03-25 | 2005-03-25 | Differential force type magnetic levitation water level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784890Y true CN2784890Y (en) | 2006-05-31 |
Family
ID=36771862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520028424 Expired - Lifetime CN2784890Y (en) | 2005-03-25 | 2005-03-25 | Differential force type magnetic levitation water level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784890Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434879C (en) * | 2005-03-25 | 2008-11-19 | 刘瑞 | Differential force type magnetic suspension water level gauge |
-
2005
- 2005-03-25 CN CN 200520028424 patent/CN2784890Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434879C (en) * | 2005-03-25 | 2008-11-19 | 刘瑞 | Differential force type magnetic suspension water level gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081119 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |