CS224965B1 - The closing valve for cylindrical proportional chambers - Google Patents

Description

- / 224 965

The invention relates to a shut-off valve for cylindrical proportional chambers.

The measurement of the radloactive samples is performed by the use of cylindrical computers made of a metal tube and sealed at the ends with a closure. In the only closure is the high-voltage & ampere outlet and the signal output from the individual computer spindles. In the second closure, there is a supply for pumping and filling the working gas and closing the cartridge after filling.

Such known computers teach a valve which is placed on the supply pipe. In order to eliminate the impact of cosmic radiation on the sample being measured, the computer is placed in annular shield, scintillator, medium, and lead. The counter dimensions are ventilated, the valve outperforms the computer length and diameter. The standard valve has a length of 150 mm or more mm. The entire computer located in the shield ring needs to sufficiently shield the shadow and increase the internal diameter. Another lack is the possibility of breaking the shut-off valve.

The aforementioned drawbacks are eliminated by a cylindrical proportional vent valve fixed to the base plate of the cylindrical computer, the principle of which is that a sealing membrane connected by a locking pin with a pressure plate, which is a valve core threaded, is provided on the inlet channel and the inlet channel. coupled to the valve body · Valve body fastened to the periphery of the sealing membrane to the base plate · The valve core is provided with a rotary handle at the top · Advantages of the present invention that the base of the computer is used as the base plate reduce the length of the computer and its diameter · 224 963

1 is a top view of the closure valve according to the invention in FIG. 1 in a sectional view of the closure valve for cylindrical proportional chambers.

The valve itself is fastened by screws 6 to the base plate 1, and a closing membrane 2 connected to the locking pin 6, with the pressure plate 2 is attached to the inlet channel 2 and the base channel inlet 10. This is a valve core threaded to the valve body 2 which is tightly sealed by the valve body 2 pressurizes the closing diaphragm 2 to the base plate 2 at the periphery.

The invention utilizes the bottom of the cylindrical computer as a base 1, through which the inlet duct 10 and the inlet duct 2 extend, to which the closing membrane 2 is seated. This closing membrane 2 through the thrust plate 2 longitudinally displaces the valve core 6 which rotates by means of a rotating rosette 8 in the threads of the valve body 2 · The valve body 23e is fastened with screws 2 on the base plate 1 and at the same time presses the sealing membrane 2 on the periphery 1 and thus seals the valve itself. the volume of the cyclic computer through the inlet channel 10, the space formed by the lowering membrane 2 with the inlet channel. the valve closing membrane 2 is pressed flat about the outlet channel 10 and the feed channel 2 ·

The invention can be used to close inlets of a working plant in cylindrical computers for the measurement of radioactive specimens.

Claims (1)

BACKGROUND OF THE INVENTION 224 9BS A shut-off valve for a cylindrical proportional chamber that is mounted on a base plate of a cylindrical computer, characterized by a closure diaphragm for the inlet duct (9) and inlet duct (10) of the base dock (1). (2) with a locking pin (6) with a pressure damper (3) which is a valve core (4) threadedly connected to the valve body (5), which presses tightly against the periphery of the sealing membrane (2) to the base the plate (1), wherein the valve core (4) is provided with a rotational axis (Θ / 1) at the top