SU836444A1 - Pipeline quick-release connection - Google Patents

Description

(54) QUICK DISCHARGE CONNECTION OF PIPELINES

I

The invention relates to the field of machine design and can be used to connect aircraft piping that can be separated in flight or to disconnect various pipelines in hard to reach places.

A quick-disconnecting connection of pipelines is known, which represents a case with spring-loaded seals, where, in order to increase the tightness of the connection, the case is made of a composite length of movable elements supported on a spring. The tightness of the connection is achieved by increasing the spring and self-sealing when the medium under pressure 1 is applied.

The connection is simple to use, but does not exclude possible leakage at the moment of supplying liquid or gas under pressure and during pipeline vibration, does not allow disconnection of pipelines automatically.

The closest to the proposed device corresponds to a quick disconnect connection of pipelines, working under pressure, including a housing with a conical sleeve and adjacent levers, where, in order to increase tightness between

a conical surface of the sleeve and the connected pipe, a frustoconical shaped sealing element is placed, between the smaller base of which and the levers are installed rods with a spring-loaded ring mounted on them, supported at the end of the conical sleeve 2. The device allows you to quickly and tightly connect pipelines with smooth ends, easy to operate. Tightness is achieved by increasing the spring and the pressure of the medium.

G1

This technical solution has the following disadvantages:

1. The possibility of leakage at the time of the supply of liquid or gas under pressure into the pipeline is not excluded, since the overall tightness of the joint is achieved by the pressure of the medium on the sealing element.

2. There is no possibility to provide the required degree of tightness of the joint before the medium is supplied, since the device does not allow adjustment of the deformation of the sealing element.

3. The device does not allow to disconnect the pipelines automatically, as the lever system does not have a remote-controlled drive.

The aim of the invention is to increase the leaktightness of the joint before the supply of working pressure and automatic disconnection of the pipeline.

For this purpose, cylindrical glasses are mounted on the lid, which shows the guide rods, and the rods themselves are made with threaded sockets with explosive piercers.

The drawing shows a general view of the proposed quick-connect pipelines.

The quick disconnect connection of the pipelines includes a housing .1 fixed on the pipeline 2, a conical sleeve 3, an attachment element 4, a spring 5.

The sealing element 4 has the shape of a truncated cone, on the smaller base of which the rods 6 are mounted. The rods 6 are sealed with sealing rings 7 and passed through the holes in the cover 8 with the possibility of movement. Glasses 9 are attached to the lid 8 on the outer side. In addition, there is a nozzle in glasses 9 | 10 for drainage of cavities when assembling the joint and venting combustion products from the cavities A after the breaking points have been actuated 11. The threaded holes of UITOKOB b are screwed through the ends of the cups 9 when the tearing pyrobalt 11 is not tightened or the pipe 2 and pipe 12 are separated, seal The pressing element 4 is pressed by the spring 5.

Assembly is made as follows.

When a pipe 12 is inserted into the joint, the sealing element 4 is pressed into the inside of the housing and the pipe 12 freely enters the joint.

Screw the explosive pyrobolts 11 into the threaded holes of the rods 6, tighten the sealing element 4 into the conical sleeve 3. Due to the deformation of the sealing element 4, the latter fits snugly to the surface of the conical sleeve 3 1 of the pipe 12. When a liquid or gas is supplied to the pipeline under pressure a pressure is created inside the joint which, acting on the larger base of the sealing element, creates an even greater seal between the pipe and the conical sleeve.

The operation of the device is as follows.

When the pipelines are automatically disconnected after the pressure has been released from them, an electrical impulse is supplied from the commanding device to the explosive pyrobolts 11. As a result of the explosive pyrobolts 11, the cavities A are filled with combustion products that pressure the end surfaces of the rods b and cuts of the explosive pyrobolts 11, moving sealing element 4 inside the tapered bushing 3. The connection is undocked. The heads of explosive pyrobolts 11 after the operation remain in the cups 9 and ensure the tightness of cavity A by flaring the body of the burst pyrobolt 11 in the saddle of the glass butt. Combustion products from cavity A are discharged through the jet 10 to the atmosphere.

Formula / a, inventions

A quick-disconnect piping connection, comprising a housing with a lid with a conical sleeve and a sealing element located between the sleeve and the piping, to the lower base of which retaining rods are attached, characterized in that in order to increase the sealing of the connection before supplying the working pressure and automating the disconnection, on the lid cylindrical glasses, which are the guides of the rods, are installed, the rods themselves are made with threaded sockets, in which explosive pyrobolts are installed.

Information sources,

taken into account in the examination

I. USSR Copyright Certificate No. 413333, cl. F 16 L 37/06, 1972.

2 USSR Author's Certificate No. 323611, cl. F 16 L 37/16, 1970.

Claims (1)

Claim A quick-disconnect connection of pipelines, comprising a case with a conical sleeve closed by a cover and a sealing element located between the sleeve and the pipe, to the smaller base of which ^{on the} 30th there are fastened its rods, characterized in that in order to increase the sealing of the connection before applying the working pressure and automating the undocking, lid mounted cylindrical _ϊ5 glasses, which are the guides of the rods, the rods themselves are made with threaded sockets in which bursting pyro-bolts are installed.