CN2773636Y

CN2773636Y - Balanced magnetic-suspension water level gauge

Info

Publication number: CN2773636Y
Application number: CN 200520028488
Authority: CN
Inventors: 刘瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-08
Filing date: 2005-04-08
Publication date: 2006-04-19
Anticipated expiration: 2015-04-08

Abstract

The utility model relates to a balance type magnetic suspension water level gauge which belongs to the technical field of water level measurement. The utility model comprises a volumetric cylinder, a measurement hammer, an inner magnetic steel combination body, an inner magnetic steel protective jacket, a vehicle sliding traction frame, an outer magnetic steel combination body, a pulley, a weight hammer and a pointer, wherein the volumetric cylinder is communicated with a boiler steam drum by two connecting pipes; the measure hammer is arranged in the volumetric cylinder; the inner magnetic steel combination body is arranged in the inner magnetic steel protective jacket; the inner magnetic steel protective jacket is connected with the upper end of the measurement hammer by a connecting rod; a rope connected with the upper end of the vehicle sliding traction frame rounds the pulley and is connected with the weight hammer; the outer magnetic steel combination body is arranged on the vehicle sliding traction frame; the pointer is fixed outside the vehicle sliding traction frame. The utility model causes the measurement hammer to be stably suspended in the volumetric cylinder by magnetic field force, and causes the measurement hammer to move following a water level change by balance relation of the gravity of the weight hammer and a difference value of resultant force and buoyancy generated when the measurement hammer is intruded in water. Simultaneously, the pointer is driven to move, thereby, a water level is measured. A measured value is a continuous variable. The utility model has the advantages of no hysteresis phenomenon, and high accuracy.

Description

Balance type magnetic levitation water level gauge

Technical field

The utility model belongs to the level measuring technical field, relates to a kind of balance type magnetic levitation 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, utilization makes a concerted effort to deduct the difference of suffered buoyancy when measuring in the hammer invasion water and the equilibrium relation between the counter weight gravity, make to measure to hammer into shape and move with SEA LEVEL VARIATION, thereby drive pen travel simultaneously and measure water level, purpose provides a kind of balance type magnetic levitation water level gauge.

The utility model comprises volumetric cylinder 1, measures hammer 2, interior magnet steel assembly 3, interior magnet steel sheath 4, frame with pulley attachment,traction 5, outer steel assembly 6, pulley 7, counter weight 8, pointer 9.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 3 places interior magnet steel sheath 4, and interior magnet steel sheath 4 links to each other with the upper end of measuring hammer 2 by connecting rod, and is positioned at the top straight length of volumetric cylinder 1.The rope that frame with pulley attachment,traction 5 upper ends connect is walked around pulley 7 and is linked to each other with counter weight 8.Outer steel assembly 6 places on the frame with pulley attachment,traction 5, and is positioned at the outside of volumetric cylinder 1 top straight length.Magnet steel assembly 3 and measurement hammer 2 stable suspersions were in volumetric cylinder 1 in interaction between the magnetic field that magnetic field that outer steel assembly 6 forms and interior magnet steel assembly 3 form made; Pointer 9 is fixed on frame with pulley attachment,traction 5 outsides.

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.The gravity of counter weight 8 is slightly less than interior magnet steel assembly 3, interior magnet steel sheath 4, measure object gravity such as hammer 2, outer steel assembly 6, frame with pulley attachment,traction 5 and (promptly making a concerted effort).When water level rises to joint efforts with the difference of measuring hammer 2 suffered buoyancy less than the gravity of counter weight 8, measuring hammer 2 begins to move up with the rising of water level, simultaneously frame with pulley attachment,traction 5 also moves up, and drives pointer 9 and move up, thereby indicates the variation of water level; Otherwise, when decline of water table, to measure hammer 2 and move down thereupon, frame with pulley attachment,traction 5 also moves down, and drives pointer 9 and moves down, and indicated water level descends, 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, utilization is made a concerted effort and is measured the difference of suffered buoyancy in the hammer invasion water and the equilibrium relation between the counter weight gravity, make to measure to hammer into shape and move with SEA LEVEL VARIATION, thereby drive pen travel simultaneously and measure water level, measured value is continuous variable, the problem that does not also have friction force, thereby measure and hysteresis phenomenon can not occur, and the precision height.The top straight length of volumetric cylinder and bottom be difficult for producing leakage phenomenon, thereby the utility model also more are applicable to the level measuring under the ultra-high pressure condition 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, 3 interior magnet steel assemblys, magnet steel sheath in 4,5 frame with pulley attachment,traction, 6 outer steel assemblys, 7 pulleys, 8 counter weights, 9 pointers, magnetic steel ring in 16 pulley brackets, 10A, magnet steel post in the 10B, magnetic steel ring in the 10C, 11A, 11B, 14A, 14B annular isolation cover, 13A, 13B, 13C outer steel ring, 15 sealing gaskets, 12 scales, 17 outer steel sheaths.

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 15 sealings.

Measuring hammer 2 is right cylinder, places volumetric cylinder 1.Interior magnet steel assembly 3 comprises interior magnetic steel ring 10A, interior magnet steel post 10B, interior magnetic steel ring 10C, interior magnetic steel ring 10A, 10C are annular, interior magnet steel post 10B is cylindrical, the three is stacked in the interior magnet steel sheath 4, and with annular isolation overlap 11A, 11B is spaced apart, the lower end of interior magnet steel sheath 4 links to each other by connecting rod and the upper end of measuring hammer 2.Outer steel sheath 17 is installed on the frame with pulley attachment,traction 5, and outer steel assembly 6 places in the outer steel sheath 17; The installed inside roller of frame with pulley attachment,traction 5 is when moving up to reduce frame with pulley attachment,traction 5 and the friction between the volumetric cylinder 1 top straight length; The upper end of frame with pulley attachment,traction 5 suspension ring connecting rope, pulley bracket 16 is fixed with respect to the position of volumetric cylinder 1, and pulley 7 is fixed on the end of pulley bracket 16 by axle, and pulley 7 can be that rotate at the center with the axle.Rope is walked around pulley 7 and is connected with counter weight 8 upper ends.Scale 12 is also fixed with respect to the position of volumetric cylinder 1, and pointer 9 is fixed on traction frame with pulley attachment 5 outsides, when pointer 9 moves with traction frame with pulley attachment 5, just can read the water level of pointer 9 indications by scale 12.Outer steel assembly 6 comprises

outer steel ring

13A, 13B, 13C, and the three is an annular, be stacked in the outer steel sheath 17 on the traction frame with pulley attachment 5, and with

annular isolation overlap

14A, 14B separates.Interior magnetic steel ring 10A, interior magnet steel post 10B, interior magnetic steel ring 10C and

outer steel ring

13A, 13B, 13C adopt axial charging.Interior magnetic steel ring 10A is identical with outer steel ring 13A pole orientation, forms the magnetic field of repelling each other; Interior magnet steel post 10B and outer steel ring 13B pole orientation are different, form the magnetic field of inhaling mutually.Interior magnetic steel ring 10C is identical with outer steel ring 13C 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

11A, 11B, 14A, 14B adopt nonmagnetic substance, and three groups of magnetic fields are separated, and reduce influencing each other between each magnetic field.

Claims

1. a balance type magnetic levitation water level gauge is characterized in that comprising volumetric cylinder (1), measures hammer (2), interior magnet steel assembly (3), interior magnet steel sheath (4), frame with pulley attachment,traction (5), outer steel assembly (6), pulley (7), counter weight (8), pointer (9); 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 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 (3) places interior magnet steel sheath (4), and interior magnet steel sheath (4) links to each other with the upper end of measuring hammer (2) by connecting rod, and is positioned at the top straight length of volumetric cylinder (1); The rope that frame with pulley attachment,traction (5) upper end connects is walked around pulley (7) and is linked to each other with counter weight (8); Outer steel assembly (6) places on the frame with pulley attachment,traction (5), and is positioned at the outside of volumetric cylinder (1) top straight length; Pointer 9 is fixed on frame with pulley attachment,traction 5 outsides.

2. according to the described formula balance of claim 1 magnetic levitation water level gauge, magnet steel assembly (3) comprises interior magnetic steel ring (10A), interior magnet steel post (10B), interior magnetic steel ring (10C) in it is characterized in that, interior magnetic steel ring 10A, 10C are annular, interior magnet steel post 10B is cylindrical, in the three is stacked in the magnet steel sheath (4), and spaced apart with annular isolation cover (11A), (11B); Outer steel assembly (6) comprises outer steel ring (13A), (13B), (13C), and the three is an annular, is stacked in the outer steel sheath (17) on the frame with pulley attachment,traction (5), and separates with annular isolation cover (14A), (14B); Interior magnetic steel ring (10A), interior magnet steel post (10B), interior magnetic steel ring (10C) and outer steel ring (13A), (13B), (13C) adopt axial charging; Interior magnetic steel ring (10A) is identical with outer steel ring (13A) pole orientation; Interior magnet steel post (10B) is different with outer steel ring (13B) pole orientation; Interior magnetic steel ring (10C) is identical with outer steel ring (13C) pole orientation.