RU223122U1 - Fast acting shut-off valve module - Google Patents

Abstract

The utility model relates to valve engineering, to modules of pipeline shut-off valves and can be used in various technological safety systems, for example, pipeline protection systems for nuclear power plant steam generators. Module of a high-speed shut-off mechanism, consisting of disc springs (1), guides (2) with a collar and two eyes, a rod (3) with a profiled conical head, nuts (4), axles (5) and wheels (6), wherein the disc springs (1) are assembled into packages of six consecutive pairs of disc springs (1) and are arranged in parallel.

Description

Technical field

The utility model relates to valve engineering, to modules of pipeline shut-off valves and can be used in various technological safety systems, for example, pipeline protection systems for nuclear power plant steam generators.

BACKGROUND OF THE ART

Patent DE 2358492 MPK F16K31/00 is known from the prior art, published on 05/30/1974. The invention relates to a shut-off valve or throttle valve, respectively.

An advantageous effect of the present invention is to provide a gate valve that creates a gas-tight seal in the closed position and provides a seal.

The disadvantage is the unnecessary complexity of the design.

Patent RU 82016 MPK F16K 3/12 is known from the prior art, published on April 10, 2009. The utility model relates to the field of valve engineering, more specifically to shut-off pipeline valves, and can be used for hermetically sealing pipelines with various media.

A useful effect of this utility model is to reduce the cost of manufacturing the fittings and the costs of its operation.

The disadvantages of this utility model are the difficulty of using the product in manual mode if the electronic part fails.

Patent RU 192161 utility model relates to pipeline valve engineering, in particular to shut-off valves for nuclear power plants, and can be used in the circuits of thermal power plants as a shut-off element, in particular in steam valve blocks of nuclear power plants.

The beneficial effect of this utility model is to increase the service life of high-speed shut-off valves by ensuring the operability of the friction pair - the piston ring - the mirror of the cylinder of the high-speed shut-off valve, which is part of the steam valve block.

The disadvantage of this utility model is the insufficiently high speed of operation, due to the selected mechanism for moving the spindle, which does not allow the valve to be used in emergency shutdown modes of the pipeline.

Patent RU 192161 MPK F16K 17/22, F16K 31/363, published on 09/05/2019, is taken as the closest analogue, the shortcomings of which are eliminated by the claimed technical solution.

Disclosure of the essence of the utility model

The technical challenge is to expand the arsenal of pipeline shut-off valve modules with reliable sealing.

The technical result that the utility model is aimed at achieving is the creation of a high-strength high-speed shut-off valve module that prevents spontaneous opening of the valve after it is closed, ensuring reliable sealing.

The technical result makes it possible to achieve a module of a high-speed locking and shut-off mechanism, consisting of disc springs, guides with a collar and two eyes, a rod with a profiled conical head, nuts, axles and wheels, and the disc springs are assembled into packages of six consecutive pairs of disc springs and are located parallel.

Brief description of drawings

Fig. 1 – Diagram of a high-speed shut-off valve module,

where 1 – Disc springs

2 – Guides

3 – Bar

4 – Nuts

5 – Axis

6 – Wheel

Fig. 2 – General view of the equipment and remote element A – Module of a high-speed shut-off valve.

Implementation of a utility model

All components of this utility model are described in detail below with reference to the drawings and the reference positions indicated on them for a more complete understanding of the scope and all technical aspects of the claimed technical solution by a person skilled in the art.

In fig. Figure 1 shows the inventive device of a shut-off valve module.

In fig. Figure 2 shows a general view of the equipment and remote element A - Quick-acting shut-off valve module, while the module is located in the upper part of the quick-acting shut-off valve.

Belleville springs 1 are elastic elements in the form of disks with a cone shape. Disc springs 1 are assembled in a package of 6 serial pairs of disc springs 1. In each pair, disc springs 1 are installed in parallel. The package is connected to the guide 2. On one side, the package is fixed with a collar on the guide 2, and on the other with a nut 4. The packages of disc springs 1, when compressed by tightening the nut 4 and when the rod 3 moves, create a force at the point of contact of the wheel 6 and the rod 3, and prevent spontaneous movement of the rod 3 under the action of buoyant force.

Guide 2 is a cylindrical part with a shoulder and two eyes. A collar on one side secures disc springs 1. Wheel 6 and axle 5 are inserted into the lugs.

The rod 3 is a shaft with a profiled conical head, which moves along the wheel 6, compressing and releasing the package of disc springs 1, thereby changing the forces on the disc springs 1.

The nut 4 is a fastening element that fixes the disc springs 1 on one side and also pre-presses them, creating an initial force.

Axle 5 is a cylindrical part, which, together with wheel 6, is mounted in the eyes of guide 2.

Wheel 6 is a structural element in the shape of a cylinder with a hole. Wheel 6 is inserted between the eyes of guide 2. Axle 5 is inserted into the hole of wheel 6 with tension.

The device operates as follows.

The upward buoyant force generated by the pressure of the medium inside the equipment, acting on the rod 3, tries to move the rod 3. The rod 3 with its profiled part rests on the wheels 6, fixed with the help of an axis 5, which begin to compress the disc springs 1 put on the guide 2 and secured with one of the sides using a nut 4. Due to the compression of the disc springs 1, an elastic force arises on them, preventing their compression, and, accordingly, preventing the movement of the rod 3 under the action of buoyant force, since the profile of the rod 3 has a conical shape, the elastic force from the disc springs spring 1 gives a tangential component directed in the opposite direction from the buoyancy force.

Also, to ensure reliable sealing, the rod 3, axle 5, wheels 6 and guides 2 are subjected to chemical-thermal treatment, this increases the strength of the materials, which prevents deformation of the structural elements over time, as a result of which the module can withstand greater pressure and provide reliable sealing.

Claims (1)

A module of a high-speed locking and shut-off mechanism, consisting of disc springs, guides with a shoulder and two eyes, a rod with a profiled conical head, nuts, axles and wheels, and the disc springs are assembled into packages of six consecutive pairs of disc springs and are arranged in parallel.