PL149353B1 - Apparatus for measuring concentration of ferromagnetic pollutants in a liquid - Google Patents

Description

PATENT DESCRIPTION

149 353

POLAND

REPUBLIC

FOLK

OFFICE

PATENT

PRL

Additional patent to patent no. Pending: 85 02 26 / P. 252121, /

Priority s Application announced: θ6 09 09

Patent description published: 1990 03 31

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Int. Cl. ⁴ G01N 27/72 G01N 33/28

Creators of the invention: Józef Fórmaniak, Bogdan Wiślicki

Authorized by the patent: Institute of Aviation, Warsaw / Poland /

DEVICE FOR MEASURING THE QUANTITY OF PHERROMAGNETIC POLLUTANTS IN A LIQUID

The present invention relates to a device for measuring the amount of ferromagnetic impurities in a liquid.

A device for measuring the presence and content of ferromagnetic impurities in liquids is known from the German patent description No. 3,116,696, with a generator powering an alternating current bridge with two parallel resonant circuits, tuned to resonance, and an air spool with known inductance, into which the tested fluid is introduced to change its inductance. and thus the resonant frequency of the measuring circuit.

A device for the sedimentation of fero-magnetic particles is known from the Polish patent description No. 144407 having a coil wound on a body and a measuring sensor with a measuring gap located inside the body. The O1 of the magnetizing coil and the measuring gap coincide. This unit is placed ^^ and innna ^ from any heater.

Known devices for measuring the amount of ferromagnetic impurities in a liquid have a low sensitivity due to the examination of a sample of the liquid with a small volume.

The aim of the invention is to develop a device that enables real-time measurement of the amount of ferromagnetic impurities in a fluid.

The essence of the invention consists in the fact that the housing made of a non-magnetic material has a bottom at one end with an outlet port, and at the other end a cover with a liquid inlet conduit, sealed by a gasket. The magnetizing coil is located near the bottom

149 353

149 353 housings. A fluid flow space is formed between the outer surface of the magnetizing coil and the inner surface of the housing. The measuring sensor protrudes from the opening of the magnetic coil spool and forms, together with the spool's face, the measuring space. The measuring space is located near the fluid inlet pipe outlet. seals.

The subject of the invention is shown in an embodiment in the drawing which shows the device according to the invention for measuring the amount of ferromagnetic impurities in a fluid in longitudinal section.

The device according to the invention shown in the drawing comprises a housing 1 made of a non-magnetic material having a bottom 10 at one end with a fluid outlet 11, and a cover 7 at the other end. The bottom 10 has an axial opening in which a sleeve 12 is located. conductors 9 supplying electric current to the winding 4 of the magnet coil and the winding of the measuring sensor 2. In the hole of the bottom 10, there is also a pressure gasket 13, which seals the sleeve 12 against the bottom 10 by means of a passage 14.

The cover 7 is attached to the housing 1 by means of a threaded connection and has an axial opening * through which a fluid inlet pipe 5 passes, connected to the cover 7 by a weld. The device also has a gasket 8 sealing the cover 7 against the housing 1.

Inside the housing, near the bottom 10 and the outlet 11, there is a magnet coil, consisting of a spool 3 and a coil 4. A space for fluid flow is formed between the outer surface of the magnetizing coil and the inner surface of the housing 1. The bobbin 3 has an axial opening in which is located a measuring sensor 2 connected by wires to a gauge (not shown in the drawing). The measurement sensor 2 pierces the bore of the bobbin 3 and forms a measurement space 6 in line with the face of the bobbin 3. The measurement space 6 is located near the outlet of the fluid inlet conduit 5.

The operation of the device according to the invention is as follows. After the device is switched on in the fluid circuit, it flows through the device and washes the measuring sensor 2 and the magnetizing coil / 3, 4 / · When the electric current supplying the winding 4 of the magnetizing coil is turned on, an electromagnetic field is generated which acts on the flowing fluid. The duration of the action of the slekto-magnetic field on the flowing fluid depends on the degree of contamination of the fluid and the speed of its flow. Ferromagnetic contamination under action! of this electromagnetic field are deposited in the measuring space 6. Next, the quantity of ferromagnetic impurities is measured in a known manner by means of a sensor 2 and a meter (not shown in the drawing). After the measurement, the electromagnetic field is interrupted and the device is rinsed, removing ferromagnetic contamination from the measuring space 6.

Since the device according to the invention is mounted in the fluid circuit, it enables the diagnosis of the contamination condition of the fluid and therefore the degree of wear of parts and mechanisms in real time. This allows for the determination of the pre-failure conditions of mechanisms, which is particularly valuable and important in the case of expensive and non-expensive objects with a high work safety, especially in aviation, military service, fleet, etc.

Claims (3)

Pateno claims 1 · A device for measuring the amount of ferromagnetic contamination in a liquid containing a magnetic coil and a measuring sensor located in a housing, characterized in that the housing / 1 / made of non-magnetic material has a cover at one end / 7 / 149 353 with a fluid inlet conduit / 5 /, sealed by a gasket / 8 /, and the magnetizing coil / 3, 4 /, is located near the bottom / 10 / the housing / 1 /, and between the outer surface of the magnetic coil / 3 4 and / wewnnt ^RZN and the surface of the housing / 1 / is formed space for fluid flow sensor natomast / 2 / szpu protrudes from the aperture leaf / 3 / g coil ^^ ^^ iS ^ jiącej / 3, 4 / and forms together with the bobbin face / 3 / measuring space / 6 /. 2. The device according to claim 1, characterized in that the measurement space (6) is situated near the outlet of the fluid inlet conduit (5). 3. The device according to claim 2 characterized by the fact that the bottom / 10 / has an opening in which a sleeve / 12 / with electric conductors / 9 / is sealed against the housing / 1 / with a seal / 13 /