HEART OF TURBO COMPRESSOR

TECHNICAL FIELD

The invention belongs to the field of machinery and relates to machines for examination of turbo compressors, i.e. their vital parts. According to the International Classification of Patents (ICP) the invention is classified in class F02C 1 / 02 which defines plants of gas turbines, with non-heated gas under pressure as working fluid. The invention may also be classified in class F02K 3/00 which defines plants with gas turbines that drives the compressor or the blower.

TECHNICAL PROBLEM

The technical problem resolved by this invention consists in how to solve by a construction a machine for examination of heart of turbo compressor so that by application of working board and oscillation board, accelerometer, magnetic sensor of number of rotations, pneumatic starter of turbine, as well as accompanying necessary mechanical and electronic equipment and outfit, should be enabled quick, simple and precise dynamic examination of heart of turbo compressor in full volume of its working speed, at the point of view of level of vibrations. BACKGROUND ART

By reviewing patent and non-patent documentation, the Inventors have no knowledge of similar solutions of a machine for examination of heart of turbo compressors.

DISCLOSURE OF INVENTION

The technical problem is successfully solved by construction of the machine for examination of heart of turbo compressor, according to this invention.

The construction of the machine for examination of heart of turbo compressor is performed so that in housing is placed a working board and on it, by springs, and oscillation board. On the oscillation board, by a special tool is fixed heart of turbo compressor on whose turbine is slipped on a starter, while on compressor a lid with magnetic sensor of number of rotations which is connected with mesuring electronics with which is connected also an accelerometer. In housing is placed an oil tank which is connected by a pump with a motor, by filters and valves of oil flow, by feed duct to heart of turbo compressor, to which it is connected also by return duct. An air tank, by transmitter of pressure and electromagnetic valve, and also by hand air valve with command handle ( or lever arm ), is connected to air distributor which is connected by pipes to starter. Starter is connected by return duct to sound silencer.

BRIEF DESCRIPTION OF DRAWINGS

The invention is described in detail by drawings in which:

- Figure 1 shows a horizontal projection of front side of machine for examination of heart of turbo compressor;

- Figure 2 shows block scheme of machine for examination of heart of turbo compressor;

- Figure 3 shows an under-structure of strater with heart of turbo compressor; - Figure 4 shows section A-A of Figure 3;

- Figure 5 shows section C-C of Figure 3 and

- Figure 6 shows section B-B of Figure 4.

DETAILED DESCRIPTION OF THE INVENTION

According to enclosed drawing, the machine for examination of heart of turbo compressor is performed so that in housing P is placed working board 10 and on it, by springs 91, oscillation board 9 on which by tool 8 is fixed heart 34 of turbo compressor. On turbine T is slipped on starter 16, while on compressor K lid 19 with magnetic sensor 22 for measuring number of rotations, which is connected with measuring electronics 20 with which is connected also accelerometer 21. Magnetic sensor 22 works on principles of Hall's effect, using magnetic field and induction for precise indication of number of rotations of turbine. Accelerometer 21 is teamed with oscillation board 9.

In housing P is placed oil tank 1, whose heater and temperature giver 23 are connected with measuring electronics 20. Tank 1 is connected by pump 3 to motor 2, by filters 4 and valves 7 of oil flow, by feed duct 71 to heart 34 of turbo compressor, to which it is connected also by return duct 72. Feed duct 71 is connected by overflowing valve 5 to tank 1, while transmitter 6 of pressure is connected electronically to measuring electronics 20.

Air tank 36 is electronically connected by transmitter of pressure 11 and electromagnetic valve 12 to measuring electronics 20, and also by hand air valve 13 with command handle ( or lever arm ) 132, by feed duct 131 is connected to air distributor 14. Distributor 14 is connected by pipes 15 to starter 16 by connection 151. Starter 15 is connected by return duct 17 to sound silencer (18).

Command panel 24 is connected by ducts 26, 27, 28, 29, 30 to mesuring electronics 20, while by duct 25 to peronal computer 31 which is connected with monitor 32 and printer 33. In starter 16 is placed by slidding and moving cylindrical insert 35 in whose cascade opening 352 is rotationally placed turbine T whose gasket ring 343 pressures first cascade. Flange 342 of housing 341 is encircled , by tightening boards 161 and fixed by bolts 163 and butterfly nuts 164 to strater 16.

Return duct 17 is fixed by bayonet connection 171 to cylindar outlet 166 of starter 16 so that it is centrical with circular opening 353.

In starter 16 is performed central circular hole 161 and cylindar outlet 166 with central opening. On front side of starter 16 are performed two circular openings 167 for bolts 163, while on lateral sides four circular openings with coils 165 for acceptance of connection 151 of pneumatic feed ducts 15.

Cylindar insert 35 is performed with central cascade opening 352 that is centrical with cylinder opening 353 on the other side. On volume of insert 35 iz performed groove 351 of rectangular section in which are drilled a bigger number of of cylinder openings 355 that expand under angle towards central opening 352.

Principle of work of the machine is that air under pressure is brought by feed ducts 15 by connection 151 to starter 16. Inside starter 16 air enters into groove 351 in insert 35 and through cylinder openings 355 comes with great speed to turbine paddles. Thanks to the fact that openings 355 are drilled under angle in relation to tangent of cylinder insert 35, air hits paddles of turbine T under ideal angle, forcing it to rotate by great speed. By adjusting of air pressure, turbine T may turn even more than 200,000 rotations per minute, while voluminous speed of its paddles exceeds speed of one Mach. Due to this, on the turbine circuit is created noise of very high frequence, so that it is necessary to lead unnecessary air by return duct 17 to sound silencer 18. Thanks to sensors and measuring electronics 20, machine gathers relevant data about level of vibrations of turbo compressor, processes them in PC 31, shows results on monitor 32 and, if necessary, prints them on printer 33.

INDUSTRIAL APPLICABILITY

Basic function of described machine is dynamic examination of heart of turbo compressor ( position 34 ) in full volume of its work speed at the point of view of level of vibration ( REVICON - Resonance Vibration Control ).

Lubrication of heart of turbo compressor is done by motor oil in system shown on scheme of positions 1-7.

Running start of turbo compressor is done by air under pressure from air tank, i.e. air installation, at which occasion is done hand regulation of air quantity by components shown on positions 11- 18.

Synchronization of functionning of lubrication system ( oil ) and system of running start ( air ) is done by measuring electronics (position 20) and program EVB Soft 1 , as well as PC (position 31) and program EVB Soft 2.

For certain obtained working speed of rotor of turbo compressor fixed by tools ( position 8 ) to vibro table ( position 9 ) is done measuring of level of vibrations by accelerometer ( position 21 ), measuring electronics ( position 20 ) in which is performed AD conversion of signals and corresponding filtration, so that this result is shown by PC ( position 31 ) and program EVB Soft 2 on monitor ( position 32 ). Such measurings are done simultaneously for chosen volume of working speed.

Line that connects points of thus obtained results is called line of vibration in resonant condition of rotor of turbo compressor (REVICON), while its character indicates the image of dynamic conduct of heart of turbo compressor in its working volume.

If on diagrams the line exits tolerant fields, procedure of balancing of rotor of compressor circuit is performed by special method «EVB VIBRO BALANCE*, using operative keys ( position 29 ), as well as programs EVB Soft 1 and EVB Soft 2.

In correctly performed procedure of balancing of heart of turbo compressor by corrections of debalance on compressor rotor, the line of vibrations has to be in tolerant fields.

Such obtained graphic indication - diagram is possible to print on integrated printer ( position 33 ).

For Applicants,

sgd.

R E P R E S E N T A T I V E

Patent Engineer

Slobodan Dimitrijevic