CN2415348Y - Magnetic liquid level meter - Google Patents

Abstract

The utility model relates to a magnetic liquid level meter, and the upper end of a guide pipe of the liquid level meter is welded under a manhole cover plate; two ends of a liner pipe arranged on the outside of a lower end pipe are welded with a floating ball housing by a liner ring; the outer wall of the liner pipe is provided with a magetic ring; the upper end of a measuring rod arranged in the guide pipe is carved with a graduated scale, and the lower end of the rod is fixedly connected with a magnet; the magetic ring and the magnet are a pair of coupling components; when medium in a can is lifted and lowered, the floating ball follows to lift and lower; the floating ball drives the lifting and lowering of the magnetic ring, and the magnet and the measuring rod follow to lift and lower under the action of sucking force; the liquid level of the medium in the can be displayed from the graduations of the rod. The liquid level meter has the advantages of no leakage, environment protection, visual display, simple operation, and safe and practical operation, and furthermore, the utility model is an indispensable accessory of a liquefied gas railway tank car.

Description

The magnetic force liquid level gauge

The utility model relates to a kind of liquid level gauge, the liquid level that is specially adapted to railways tank car loading liquefied gas shows.

What at present, railways tank car loading liquefied gas generally adopted is Slide tube level meter.This kind liquid level gauge is to judge liquid level indirectly by the state of pull slip pipe ejection medium, and slip pipe is sealed into material filling type, and the ejection medium must be come causes environmental pollution in the atmosphere; Discharge orifice on the slip pipe easily takes place to stop up and causes false liquid level, gives to transport safely and brings hidden danger; Though filler is pressed to such an extent that tension helps sealing and but is difficult for pulling out slip pipe, though filler is pressed to such an extent that tension helps sealing and but is difficult for pulling out slip pipe, filler is pressed easy leakage the too loose, when the pull slip pipe reaches certain number of times, filler just must be changed, make troubles to Operation and maintenance, and liquid level shows also not directly perceived.

In order to solve the deficiencies in the prior art, the purpose of this utility model provides a kind of magnetic force liquid level gauge, problems such as, operating maintenance difficulty directly perceived with contaminated solution environment, obstruction, leakage, demonstration.

In order to realize the purpose of this utility model, its concrete technical scheme is: the upper end seam of stainless steel long duct is on cover plate for manhole, and conduit outer bushing pipe two ends in lower end are welded with the shell of ball float by grommet, and shell internal lining pipe lower end outer wall is provided with magnet ring; Sounding rod upper end in the conduit is printed on rule, is fixed with magnet on the external diameter of sounding rod lower end.Magnet and magnet ring are a pair of male part, ball float lifting thereupon during the medium lifting in jar, and ball float drives magnet ring and attracts magnet to drive sounding rod lifting thereupon, indicates the liquid level change of jar interior medium from the scale of sounding rod upper end.

The utility model just conduit upper end and cover plate for manhole seam together, sounding rod is separated fully with medium, by the magnet of sounding rod lower end and the coupling of ball float internal magnetic ring, ball float drives sounding rod with the tank level lifting and moves up and down the liquid level that indicates medium, and is so this liquid level gauge does not have leakage, free from environmental pollution, intuitive display, simple to operate, easy to maintenance, safe and practical.It is the indispensable safety attachment of railways tank car loading liquefied gas.

Make detailed description below in conjunction with drawings and Examples.

Fig. 1 is the structural drawing of facing of the present utility model.

In the drawings, this magnetic force liquid level gauge is mainly by magnet, magnet ring, sounding rod, and conduit and guard shield are formed.The 9 upper end seam of stainless steel long duct guarantee that medium does not leak on cover plate for manhole 13; The lower end is associated with fixed head 1, during application fixed head 1 with jar in a liquidus pipe link with fixing liquid level gauge, clash into liquid level gauge when preventing the tank car motion.Sitting on the fixed head 1 has bottom spring 2, bump fixed head 1 when preventing ball float 6 liftings.Sounding rod 8 is positioned at conduit 9, and sounding rod 8 upper ends are printed on corresponding graduated scale, is fixed with magnet 5 on the bottom bar footpath of sounding rod 8, and magnet 5 is positioned at conduit 9 and play the guiding role when sounding rod moves up and down.Sit on the conduit 9 outer bottom springs 2 ball float 6 is arranged, ball float 6 shells are face by two hemisphere assembly weldings, one guiding bushing pipe 16 is arranged outside the intermediate conductor 9 of ball float 6, these bushing pipe two ends and spherical shell are welded as a whole by the black grommet 3 of bottom and the white grommet 7 on top, and the following outer wall of bushing pipe 16 is provided with magnetic element magnet ring 4.Magnet ring 4 is a pair of male parts with magnet 5, when ball float 6 rises, drives magnet ring 4 and rises, by there is a natural attraction between the sexes sounding rod 8 is risen thereupon, the liquid level in indicating jar from the scale of bar is when ball float 6 descends, magnet ring 4 descends, and sounding rod 8 descends thereupon.Cover plate for manhole 13 times, the relevant position of conduit 9 external diameters is welded with fixedly baffle ring 11,11 times intrinsic tops of baffle ring spring 10, spring 10 effects in top are to prevent ball float bump clean-out plate 13.Guard shield 15 leans on bolted on connection with flange 14 seam on clean-out plate 13 by packing washer 12, and the effect of guard shield 15 is the top of protection sounding rod 8.Guard shield 15 is made up of cover body 15.1, protective cover 15.2, adjustment nut 15.3 and sleeve 15.4, and the top of 15.4 pairs of sounding rods 8 of sleeve play the guiding role.The corresponding site of protective cover 15.2 is connected with chain 17, and the other end of chain 17 is connected on the cover plate for manhole 13.When checking jar interior medium liquid level, take down protective cover 15.2, the promptly considerable high scale of finding sounding rod 8 changes.

Claims (2)

1. magnetic force liquid level gauge, this liquid level gauge mainly are made up of with a pair of male part of magnet ring (4), guard shield (15) sounding rod (8), ball float (6), conduit (9), magnet (5); It is characterized in that stainless steel long duct (9) upper end seam is on cover plate for manhole (13), conduit outer internal lining pipe (16) two ends in lower end are welded with the shell of ball float (6) by grommet (3,7), shell internal lining pipe (16) lower end outer wall is provided with magnet ring (4), sounding rod (8) upper end in the conduit (9) is printed on rule, is fixed with the magnet (5) relative with magnet ring (4) on the external diameter of sounding rod (8) lower end.

2. liquid level gauge as claimed in claim 1, the lower end that it is characterized in that conduit (9) is associated with fixed head (1), fixed head (1) is gone up to sit bottom spring (2), spring (2) is gone up to sit ball float (6), the relevant position of conduit (9) external diameter is welded with fixedly baffle ring (11), and baffle ring (11) is intrinsic top spring (10) down.