SU983274A1 - Hydraulic monitor nozzle - Google Patents

Description

(54) INSTRUMENT HYDRO-MONITOR

The invention relates to mountainousness and is intended for the destruction of rocks by pulsed streams of water. .

The nozzle of the jetting machine is known, which includes two coaxially disposed nozzles, outer and inner, with channels and a bottom, while the inner nozzle is made stepped with a blunt-shaped annular protrusions and a valve spring 1}.

The disadvantage of this nozzle is the impossibility of adjusting the valve spring, which reduces reliability.

The closest technical solution is a jetting nozzle that includes a pulsed nozzle and two coaxially arranged pipes, external and internal, with annular brushes, radial channels and a tail end with a spring, while the external nozzles are fitted with counter-directed water inlet nozzles and an exhaust nozzle C2 .

A disadvantage of the known nozzle is the presence of only one pulsed nozzle, which reduces productivity.

The aim of the invention is to increase performance.

This aim is achieved in that the jetting nozzle comprising a pulsed nozzle and two coaxially arranged tube - outside with kanalamij vodopodvod conductive and exhaust connecting pipe and the inner with koltsevpli ersheobraznymi protrusions radieshnymi kangsho1mi and tail end with a spring, is provided mounted in the outer nozzle annular sleeve and the side a pulse nozzle with the possibility of communication of its working cavity with the cavity of the internal nozzle by means of additional radio channels, made in the internal pattern ubke, and annular grooves and channels formed in the annular sleeve.

The drawing shows the monitor.

Claims (2)

 The jetting nozzle includes a fitting 1 with a pulse nozzle 2, an external nozzle 3 with channels 4, a water 25 with an filling nozzle 5, an exhaust nozzle b and a nozzle 7 with an additional side impulse nozzle 8 installed in the side wall of the external nozzle that is axially displaceable in the outer pipe 3 has an internal pipe 9 with radial channels 10, additional radial channels 11, ear-shaped annular protrusions 12 and a tail end 13 with a spring 14 located between the ring sleeve 15 and the nut 16. In the tail The aperture end 13 has holes 17 in which, at a predetermined preload of the valve spring 14, a pin 18 is inserted in succession, protecting the nut 16 from self-unscrewing. The external nozzle 3 is closed from the tail end of the nut 19. The ring bushing is made with two ring holes — internal 20 and external 21, connected by channels 22. The head nipple 1 is fixed in the external nipple 3 by means of a bolt 23. On the head nipple 1 and the nipple 7, an end cap 24 may be screwed on, closing the pulse nozzle 2 or the additional pulse nozzle 8, depending on the conditions of use of the jetting nozzle. Jet nozzle works as follows. Water under pressure flows through the nozzle 5 into the hydro nozzle, the nitrator from the pressure pipe, washes the annular gap between the external nozzle 3 and the internal nozzle 9 and is thrown out through the exhaust nozzle 6. Under the action of a speed pressure acting on bristle-shaped annular protrusions 12, the internal cutting rod 9 is carried forward, compressing the spring 14. When the internal nozzle 9 reaches the protrusion in the external nozzle 3, the outflow of water through the exhaust nozzle 6 is interrupted and the discharge pipe is connected through radial channels 10 , the cavity of the internal nozzle 9 and additional radial kangsha 11 with impulse nozzles 2 and 8, since the cross section of the exhaust nozzle 6 is several times larger than the total area of the impulse nozzles 2 and 8, then with its blocking an internal pipe 9 in the cavity of the external pipe 3 and the pressure pipe creates a hydraulic shock, as a result of which the water pressure rises several times and there is an increased release of KINDS through impulse nozzles 2 and 8. After the pressure phase with hydraulic shock occurs in the cavity of the external pipe 3 and the pressure pipe of the reduced pressure phase is equal in duration to the first phase; During this period, the spring 14 returns the inner nozzle 9 to its original position, opening the outlet for water through the exhaust nozzle 6 and closing the radial channels 10 and 11. The outflow of water through the impulse nozzles 2 and 8 stops and resumes through the exhaust nozzle b. Then the cycle of operation is repeated. The proposed jetting nozzle allows for improved performance. The invention The nozzle of the jetting machine, comprising an impulse nozzle and two coaxially arranged nozzles — an outer one with channels, a water supply and exhaust nozzle, and an inner one with annular bushing-like projections, radial channels and a tail end with a spring, characterized in that, in order to increase productivity, it is equipped with an annular sleeve and a side impulse nozzle installed in the external nozzle with the possibility of communication of its working cavity with the internal nozzle cavity by means of additional rad gshnyh channels formed in the inner pipe, and annular paeov and channels formed in the annular sleeve. Sources of information taken into account in the examination 1. USSR author's certificate 241367, cl. E 21 C 25/60, 1967. 2. USSR author's certificate No. 750074, cl. E 21 C 45/00, 1977 (prototype).