DE1551591C - Cold valve - Google Patents

Description

Before the cover 8 is put on, the drum is been filled with rock wool. The actual valve head flange 7 then sits on the outer valve head flange Valve head 11, which od with a handwheel. The like. If necessary, can be equipped for remote control and has a fabric sleeve.

In this arrangement, so only through the relatively weak drum 2 or through the valve head shaft 6 of relatively small diameter cold can be discharged to the outside, while the rock wool filling 10 of the drum 2 ensures good insulation. That way you can Freezing of the valve head can be prevented even with the largest valve diameters.

1 sheet of drawings

Claims (6)

to have to suction and in which an icing of the valve head can be avoided, especially with large valve diameters. The solution to this problem is achieved according to the invention 1. Cold valve for gas decomposition or -verflüs- 5 measured in that on the valve housing cover flange sigungsanlagen whose seat and cone is attached without removing a drum that would take out to the outside the apparatus insulation from the outside and at its outer flange with the Appalich is, characterized in that the rate isolation housing jacket by a cover plate Valve housing cover flange (1) a drum (2) is connected, the insulating filling of the drum that leads out to the outside and is attached to io by a screw-on lid that covers the outer its outer flange (2 ") with the apparatus drum flange with the vent insulation housing jacket laid outwards (3, 3 ', 3 ") connected by a drain head flange, removable, which connects the cover plate 4 is connected, the insulating filling valve head with cone stop surface bearing valve (10) the drum (2) can be unscrewed from the outside through a screw-on housing cover and is shown Cover (8), which is accessible to the outer drum flange 15 through the valve seat and cone (2 ") with the outwardly routed valve head which connects to the outside outside the insulation flange (7), removable, which can be welded to the housing cover valve head with conical stop surfaces (5 ') also be screwed tightly from the outside of a flange by means of the lower valve housing cover (5),
Can be screwed and thus the valve seat and cone are also ao It is advantageous to have an insulating filling that is accessible to the flow. mel made of rock wool. But it can also be 2. Cold valve according to claim 1, characterized against other insulation materials which are removable that the drum (2) are on the housing bar. cover flange (1) with a welding edge (1 ') According to a preferred embodiment of the Eran welded is. 25 finding is the apparatus insulation housing jacket 3. Cold valve according to claim 1, characterized in movable via a bellows with the cover, that the drum (2) is connected to the housing plate. cover flange (1) by means of a flange (2 ') so as not to subject the drum to pressure is screwed tight. having to do this is an advantage in the event of a leak 4. Cold valve according to claim 1, characterized in that a drum (2) rock wool is used as the insulating filling (10) of the melflansch and the cover plate, on one of the sealing surfaces between the drum. ^λ downward pressure compensation groove provided 5. Cold valve according to claim 1, thereby going. indicates that the apparatus insulation housing The F i g. 1 and 2 each show a section through semantel (3) over a bellows (3 ") move- 35 a different embodiment of the invention Lich is connected to the cover plate (4). according to the cold valve. 6. Cold valve according to one or more of the valve housing cover flange 1 as a corner claims 1 to 5, characterized in that the valve or KaItan designed as a through valve one of the sealing surfaces between the valve is opposite the valve cover diameter The drum flange (2 ") and the cover plate (4) 40 are slightly enlarged. a preferably downwardly directed pressure The drum 2 is attached by means of a flange 2 ' compensation groove (9) is provided. screwed to the valve housing cover flange 1 or can also be attached to a corresponding pre-welding Edge Γ of the flange must be welded directly. the 45 Drum 2 leads to the outside outside of the apparatus . isolation and is there with a flange 2 " Mistake. The sheet metal jacket of the apparatus insulation 3 has a frame 3 'which surrounds the drum 2 and which also The invention relates to a cold valve for gas decomposing 50, which can preferably be designed as a bellows 3 ″ generation or liquefaction systems, its seat and (Fig. 2), its outer flange by a cover cone Verbunaußen with the flange 2 ″ of the drum 2 without removing the apparatus insulation from sheet 4 is accessible. that is. The cover plate 4 is on the flange of the A cold valve has already become known, insulating jacket frame 3 'tightly screwed,
its housing with the valve head up to the outside 55 On the valve housing cover flange 1, the under insulation is extended to the outside. The housing of the valve head flange 5 is screwed together. This flange 5 extension has such a diameter, carries a cone stop surface 5 'downwards and that the cone also proportionallymäist an extension shaft 6 upwards, which can be removed from the outside. This construction has the disadvantage, however, that the diameter of the upper vein through the housing extension with a relatively small diameter of 60 tilkopfflange 7 is somewhat small. large wall thickness a relatively strong cold transport With the upper valve head flange 7 and the takes place externally. An icing of the outer flange 2 "of the drum 2 is a cover plate 8 '■ ends of the valve head is therefore only screwed too tightly with difficulty difficulties here. 65 groove 9 is provided, which should point downwards. The task of finding a leak is now to develop a pressure equalization (construction in which there is a seat with the outside air so that the drum 2 ^ , ti is accessible without the apparatus insulation cannot be subjected to pressure.