CN200975501Y - Gate valve used in explosive hypertoxic environment - Google Patents

Abstract

The utility model provides a gate valve used in explosive and virulent environment, and relates to a valve which is applicable to an environment that is full of flammable, explosive and virulent gas and used for controlling metal particulate material flux. The valve is characterized in that containing a valve core of disk structure, the valve core and the axes of a discharging pipe vertically go through the discharging pipe, and the valve core, discharging pipe axes form a pressurized device together with a valve rod fixed in the valve core disk, nut shaped cylinder, sealing stuffing and bolt shaped caps. The utility model is of simple structure, abrasion resistance, good pressurizing capability, flexible control and low cost.

Description

A kind of gate valve that in explosive hypertoxic environment, uses

Technical field

A kind of gate valve that uses in explosive hypertoxic environment relates to a kind of valve that uses, is used for controlling the metal granule mass flow that is applicable in the environment that has been full of inflammable, explosive, hypertoxic gas.

Technical background

In the carbonylation metallurgical process, need utilize valve to control the flow of metal granule material, make metalliferous material be full of whole pipe, reach and stop nickel carbonyl gas to enter purpose in the follow-up equipment.The environment of valve working has been full of inflammable, explosive, hypertoxic gas, and is very high to the sealing requirements of valve; Simultaneously, the metal granule material and the valve that flow rub, and this just requires valve necessary wear-resisting.The valve of common good airproof performance on the market, in use sealing surface often is stuck, and makes valve invalidation, and using effect is not good.

Summary of the invention

The purpose of this utility model is the deficiency that exists at above-mentioned prior art, proposes a kind of wear-resisting, good seal performance, can control the flow of metal granule material, reaches the gate valve that uses in explosive hypertoxic environment of material balance.

To achieve these goals, the utility model by the following technical solutions.

A kind of gate valve that uses in explosive hypertoxic environment is characterized in that its structure comprises:

Spool-this spool is positioned at carrier pipe, is the spool of disc structure, and when closed, spool disk border and carrier pipe cross section inner tube surface Spielpassung;

Valve rod-this valve rod and carrier pipe axis normal run through carrier pipe, and affixed between two parties with the spool disk, an end has dop, are installed on the carrier pipe outer wall, are provided with the sealed cap that is fixed on the carrier pipe outer wall outside dop; The other end passes the carrier pipe extending end and has handle with sleeve;

Seal arrangement-this device is made up of the nut type cylinder, stuffing box packing and the bolt shape pressure cap that are fixed on the carrier pipe outer tube wall; Wherein valve core rod passes the nut type cylinder between two parties, the gap forms cavity between nut type cylinder and valve core rod, fill Packed resistant to elevated temperatures asbestos rope, the termination screw thread of its nut type cylinder is fixed with and has the bolt shape pressure cap that cooperates through hole with the valve core rod external diameter.

Valve of the present utility model comprises disk spool, valve rod and seal arrangement, controls the flow of solid particle by the angle of swing of control spool.Simple in structure, wear-resisting, good seal performance, control is flexible, and cost is very cheap.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

A kind of gate valve that in explosive hypertoxic environment, uses, its structure comprises: this spool of spool 6-is positioned at carrier pipe 1, is the spool of disc structure, and when closed, spool disk border and carrier pipe cross section inner tube surface Spielpassung; This valve rod of valve rod 4-and carrier pipe axis normal run through carrier pipe, and affixed between two parties with the spool disk, an end has dop 8, are installed on the carrier pipe outer wall, are provided with the sealed cap 7 that is fixed on the carrier pipe outer wall outside dop; The other end passes the carrier pipe extending end and has handle with sleeve 3; Seal arrangement-this device is made up of the nut type cylinder 5, stuffing box packing 2 and the bolt shape pressure cap 9 that are fixed on the carrier pipe outer tube wall; Wherein spool rubbish bar passes the nut type cylinder between two parties, the gap forms cavity between nut type cylinder and valve core rod, fill Packed resistant to elevated temperatures asbestos rope, the termination screw thread of its nut type cylinder is fixed with and has the bolt shape pressure cap that cooperates through hole with the valve core rod external diameter.

When material passes through from carrier pipe, handle with sleeve drives valve rod, thus rotational valve core, the aperture of control valve, thereby the flow of control material.Reach the purpose of control metal granule mass flow.

Claims (1)

1. gate valve that uses in explosive hypertoxic environment is characterized in that its structure comprises:

Spool-this spool is positioned at carrier pipe, is the spool of disc structure, and when closed, spool disk border and carrier pipe cross section inner tube surface Spielpassung;

Valve rod-this valve rod and carrier pipe axis normal run through carrier pipe, and affixed between two parties with the spool disk, an end has dop, are installed on the carrier pipe outer wall, are provided with the sealed cap that is fixed on the carrier pipe outer wall outside dop; The other end passes the carrier pipe extending end and has handle with sleeve;

Seal arrangement-this device is made up of the nut type cylinder, stuffing box packing and the bolt shape pressure cap that are fixed on the carrier pipe outer tube wall; Wherein valve core rod passes the nut type cylinder between two parties, the gap forms cavity between nut type cylinder and valve core rod, fill Packed resistant to elevated temperatures asbestos rope, the termination screw thread of its nut type cylinder is fixed with and has the bolt shape pressure cap that cooperates through hole with the valve core rod external diameter.