RESEARCH ON IMPROVING THE GATE VALVE OF THE DRILLING MANIFOLD

Abstract

The article considers the possibility of improving the design of the valve of the drilling manifold, which is used to cool the rock-crushing tool, as well as for the constant removal of drilled rock (sludge) from the well. Currently, in existing drilling manifolds designed for pressures up to 45 MPa, the most used are towed valves or valves with a quick-release connection (BRS) to the pipeline. At higher pressures, gate valves of the Z43Y type with a flange connection are used, the design of which is like the design of direct-flow gate valves used for fountain fittings. Since these connections are used to reduce the time for changing gate valves in order to repair or clean them, there is a need to improve the design of the locking assembly of these valves, designed for higher pressures to increase the tightness of the gate and ensure a high degree of maintainability of the gate valve. In order to improve the gate valve of the drilling manifold, it is proposed to change the design of the locking unit, which provides reliable sealing, ensuring ease of installation of the gate assembly. In this case, the gate is assembled, consisting of two halves, in which slots are provided for installing disc springs in them. The ends of each of the gate halves have bevels for ease of assembly of the locking assembly. Keywords: drilling pump, manifold, gate valve, quick-release connection, tow joint.