Automated facility control straightness suspensions

 

The invention relates to a geodetic instrument and can be used to control the straightness of suspensions of fuel assemblies for nuclear power plants with RBMK-type reactors. Automated facility control straightness suspension contains stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension. Stand with the suspension vertically, and sensors photoelectric type is stationary and connected to a common control unit. The technical result consists in increasing the accuracy and reliability of the results of geodetic measurements, automation of the measurement process. 1 Il.

The invention relates to a geodetic instrument and can be used to control the straightness of suspensions of fuel assemblies for nuclear power plants with RBMK-type reactors.

A device designed to control the straightness of suspensions containing horizontal stand with two anchor points at the beginning and in the middle, on which is located the suspension and discretely spaced throughout the length of the evaluation of the ski. A disadvantage of the known device is that it does not allow you to get the results of geodetic measurements with the required accuracy, as a suspension in a horizontal position under the action of its own weight has a non-uniform deflection along the entire length due to different diameters of individual sections, and, in addition, before each measurement must be removed and replaced contact sensors, which reduces the accuracy of geodetic measurements and makes it impossible to automate measurements [1].

The objective of the invention is to improve the accuracy and reliability of the results of geodetic measurements and automation of the measurement process.

This object is achieved in that the Automated test stand straightness pendants“ includes the stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension, according to the invention a stand with the suspension is vertical, and sensors photoelectric type is stationary and connected to a common control unit.

New features in the invention are: a stand with the suspension vertically, and sensors photoelectric type closed the other technical solutions in this field made it possible to draw a conclusion on the conformity of the proposed solutions to the criteria of “novelty” and “inventive step”.

The invention is illustrated in the drawing. In Fig.1 proposed functional diagram of an automated test stand straightness suspensions, which contains upright stand 1 with anchor points 2 and 3, on which is fixed the suspension 4, the photoelectric sensors of type 5 are located along the suspension at different levels A1, A2, A3, A4 and connected to the control unit 6.

Automated facility control straightness suspension works as follows. Suspension 4, straightness which is located vertically on the supporting points 2 and 3 and has the ability to turn around its geometric axis. At different levels A1, A2, A3, A4 along the suspension 4 are photoelectric sensor 5 connected to a common control unit 6. On command from the control unit 6 are determined sequentially using each of the photoelectric sensor 5 deflection points of the geometric axis of the suspension from linearity at all levels A1, A2, A3, A4, first in one plane, and then after the turn of the suspension 4 around its axis at 90° in the other plane. The result is an overall view of the curvature of the geometric axis of the suspension (deviation from pryamolineinosti installed in the reactor Department of the Kursk NPP on the third block and is being prepared for installation on the fourth block.

Sources of information:

1. The study of deformations of structures and equipment INPP during the commissioning. The Report MIIGAiK.n 0183.0027081. 1987. Novosibirsk, 1987, 106 S.

Claims

Automated facility control straightness suspensions containing stand with control points at which there is a suspension and sensors for measuring the straightness of the suspension, characterized in that the stand with the suspension vertically, and sensors photoelectric type is stationary and connected to a common control unit.



 

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