CN207093895U - Erosion resistance easy to operate surges choke valve - Google Patents

Abstract

Surged choke valve the utility model discloses erosion resistance easy to operate, including hydraulic cylinder, valve body, flap, valve seat, adjusting pad, locking nut, hydraulic cylinder is by hydraulic stem, piston and spring composition, offered in valve body and intersect fluid intake and fluid issuing at a right angle, hydraulic cylinder is arranged on body top, flap is connected to hydraulic pressure club head, valve seat, adjusting pad and locking nut install the fluid outlet into valve body successively, flap outer surface is circular arc, valve seat is hollow cylinder, it is provided with and flap outer surface arc radius identical section at the top of valve seat, hydraulic stem axis, flap axis, valve seat axis, adjusting pad axis, locking nut axis overlaps with fluid issuing axis.The utility model is simple in construction, and part installation and convenient maintenance and replacement, device erosion resistance ability is strong, easy to operate, and noise is small, is advantageous to improve the service life of choke valve, reduces choke valve use cost, have significant economic benefit.

Description

Erosion resistance easy to operate surges choke valve

Technical field

It the utility model is related to erosion resistance easy to operate to surge choke valve, belong to valve arrangement field.

Background technology

Choke valve is by changing throttling section or chock length to control the valve of fluid flow, the opening and closing element of choke valve It is mostly that circular cone is streamlined, channel cross-sectional area is changed by it to reach regulation flow and pressure, choke valve is supplied in pressure drop pole Making in the case of big, which reduces pressure medium, is used, and at present, known wellhead assembly, the choke valve of throttle well killing manifold, generally has Needle-type throttle valve, hole plate type throttle valve.Needle-type throttle valve has the shortcomings that erosive wear resistance is poor, noise is big；Orifice-plate type throttle operation Torque is big, easily by erosion, therefore, the choke valve it is proposed that a kind of erosion resistance easy to operate surges, is reduced while easy to operate The erosion resistance ability of choke valve, the service life of choke valve is improved, reduce choke valve use cost.

Utility model content

To solve the deficiencies in the prior art, the purpose of this utility model is to provide erosion resistance easy to operate and surged choke valve.

In order to realize above-mentioned target, the utility model adopts the following technical scheme that：

Erosion resistance easy to operate surges choke valve, including hydraulic cylinder, valve body and flap in valve body, valve seat, adjustment Pad, locking nut, aforementioned hydraulic cylinder is made up of hydraulic stem, piston and spring, be respectively equipped with the top of hydraulic cylinder hydraulic oil inlet and Hydraulic oil outlet, offers in foregoing valve body and intersects fluid intake and fluid issuing at a right angle, and aforementioned hydraulic cylinder is arranged on valve At the top of body, foregoing flap is connected to hydraulic pressure club head, and foregoing valve seat, adjusting pad and locking nut install the fluid into valve body successively Exit, foregoing flap outer surface are circular arc, and foregoing valve seat is hollow cylinder, is provided with the top of valve seat and justifies with flap outer surface Arc radius identical section, aforementioned hydraulic bar axis, flap axis, valve seat axis, adjusting pad axis, locking nut Axis overlaps with fluid issuing axis.

Preferably, inlet flange is provided with the fluid intake of foregoing valve body, the fluid outlet of foregoing valve body is provided with Outlet(discharge) flange, it is easy to be attached with external pipe.

Preferably, foregoing flap bottom is plane, and foregoing flap is fixed by screws in hydraulic pressure club head, and foregoing screw is worn Cross the plane of flap bottom and be tightened to hydraulic pressure club head, convenient disassembly is convenient that flap is changed.

Preferably, spring shim is additionally provided between foregoing screw and flap bottom, prevents screw loosening.

Preferably, foregoing adjusting pad uses thickness as 0.5mm flat metallic gaskets, adjusts the gap between valve seat and flap, Prevent valve seat and flap mismachining tolerance it is excessive cause engage deviation it is excessive.

Preferably, aforesaid fluid entrance and fluid issuing internal channel are coated with hard alloy, increase fluid intake and stream Body exports the erosion resistance ability of internal channel.

Preferably, foregoing flap outer surface and valve seat top section are coated with hard alloy and tungsten carbide.

Preferably, internal layer of the foregoing hard alloy coated in section at the top of flap outer surface and valve seat, foregoing tungsten carbide apply The outer layer of section at the top of flap outer surface and valve seat is overlayed on, increases the erosion resistance ability of section at the top of flap outer surface and valve seat, Improve the service life of choke valve.

Preferably, foregoing hard alloy uses nickel-base alloy.

Preferably, the thickness of foregoing hard alloy is not less than 2mm, and the thickness of foregoing tungsten carbide is not less than 0.5mm.

It is of the present utility model to be beneficial in that：The utility model is simple in construction, part installation and convenient maintenance and replacement, dress Put that erosion resistance ability is strong, flap and the valve seat back lash of choke valve, easy to operate, noise are controlled by the hydraulic stem of hydraulic cylinder It is small, the service life of choke valve is improved, choke valve use cost is reduced, there is significant economic benefit.

Brief description of the drawings

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

Fig. 2 is the enlarged diagram at A in Fig. 1；

Fig. 3 is the enlarged diagram at B in Fig. 1.

The implication of reference in figure：1st, hydraulic oil inlet, 2, hydraulic oil outlet, 3 hydraulic cylinders, 4, piston, 5, spring, 6, Hydraulic stem, 7, valve body, 8, flap, 9 valve seats, 10, locking nut, 11, inlet flange, 12, outlet(discharge) flange, 13, spring shim, 14th, screw, 15, adjusting pad.

Embodiment

Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or Imply relative importance.

Referring to Fig. 1, erosion resistance easy to operate of the present utility model surges choke valve, including hydraulic cylinder 3, valve body 7 and is arranged on Flap 8, valve seat 9, adjusting pad 15, locking nut 10 in valve body 7, hydraulic cylinder 3 are made up of hydraulic stem 6, piston 4 and spring 5, liquid The top of cylinder pressure 3 is respectively equipped with hydraulic oil inlet 1 and hydraulic oil outlet 2, offered in valve body 7 intersect fluid intake at a right angle and Fluid issuing, hydraulic cylinder 3 are arranged on the top of valve body 7, and flap 8 is connected to the head of hydraulic stem 6, valve seat 9, adjusting pad 15 and locking screw Mother 10 installs the fluid outlet into valve body 7 successively, and the outer surface of flap 8 is circular arc, and valve seat 9 is hollow cylinder, and valve seat 9 pushes up Portion be provided with the outer surface arc radius identical section of flap 8, the axis of hydraulic stem 6, the axis of flap 8, the axis of valve seat 9, The axis of adjusting pad 15, the axis of locking nut 10 overlap with fluid issuing axis.

Inlet flange 11 is provided with the fluid intake of valve body 7, the fluid outlet of valve body 7 is provided with outlet(discharge) flange 12, It is easy to be attached with external pipe, screwed hole is offered at the center of outlet(discharge) flange 12, the outer surface of locking nut 10 is provided with outer spiral shell Line, coordinated by screw thread and locking nut 10 is fixed in the screwed hole at the center of outlet(discharge) flange 12, locking nut 10 is mainly used Vertical after support valve seat 9 and flap 8 engage.

Referring to Fig. 2, the bottom of flap 8 is plane, and flap 8 is fixed on the head of hydraulic stem 6 by screw 14, and screw 14 passes through valve The plane of the bottom of valve 8 is simultaneously tightened to the head of hydraulic stem 6, convenient disassembly, convenient that flap 8 is changed, screw 14 and valve Valve 8 is additionally provided with spring shim 13 between bottom, prevents screw 14 from loosening.

Referring to Fig. 3, adjusting pad 15 uses thickness as 0.5mm flat metallic gaskets, can use multiple adjusting pads 15 adjustment valve Seat 9 and flap 8 between gap, prevent valve seat 9 and the mismachining tolerance of flap 8 it is excessive cause engage deviation it is excessive.

Specific in the present embodiment, fluid intake and fluid issuing internal channel are coated with hard alloy, and increase fluid enters The erosion resistance ability of mouth and fluid issuing internal channel, the outer surface of flap 8 and the top section of valve seat 9 are coated with hard alloy and carbonization Tungsten, internal layer of the hard alloy coated in the outer surface of flap 8 and the top section of valve seat 9, tungsten carbide are coated in the outer surface of flap 8 and valve The outer layer of 9 top sections of seat, increase the erosion resistance ability of the outer surface of flap 8 and the top section of valve seat 9, improve the use of choke valve Life-span, wherein hard alloy use nickel-base alloy, and the thickness of hard alloy is not less than 2mm, and the thickness of tungsten carbide is not less than 0.5mm。

In summary, the utility model is simple in construction, and part installation and convenient maintenance and replacement, device erosion resistance ability is strong, Flap and the valve seat back lash of choke valve are controlled by the hydraulic stem of hydraulic cylinder, easy to operate, noise is small, improves choke valve Service life, choke valve use cost is reduced, there is significant economic benefit.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be Combined in an appropriate manner in any one or more embodiments or example.

General principle, principal character and advantage of the present utility model has been shown and described above.The technical staff of the industry It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation The technical scheme obtained, all falls within the scope of protection of the utility model.

Claims (10)

1. The choke valve 1. a kind of erosion resistance easy to operate surges, it is characterised in that including hydraulic cylinder, valve body and the valve in valve body Valve, valve seat, adjusting pad, locking nut, the hydraulic cylinder are made up of hydraulic stem, piston and spring, are respectively equipped with the top of hydraulic cylinder Hydraulic oil inlet and hydraulic oil outlet, offer in the valve body and intersect fluid intake and fluid issuing at a right angle, the liquid Cylinder pressure is arranged on body top, and the flap is connected to hydraulic pressure club head, and the valve seat, adjusting pad and locking nut are installed successively Enter the fluid outlet of valve body, the flap outer surface is circular arc, and the valve seat is hollow cylinder, be provided with the top of valve seat with Flap outer surface arc radius identical section, in the hydraulic stem axis, flap axis, valve seat axis, adjusting pad Axis, locking nut axis overlap with fluid issuing axis.
2. The choke valve 2. erosion resistance easy to operate according to claim 1 surges, it is characterised in that the fluid intake of the valve body Place is provided with inlet flange, and the fluid outlet of the valve body is provided with outlet(discharge) flange.
3. The choke valve 3. erosion resistance easy to operate according to claim 1 surges, it is characterised in that the flap bottom is flat Face, the flap are fixed by screws in hydraulic pressure club head, and the screw passes through the plane of flap bottom and is tightened to liquid Depression bar head.
4. The choke valve 4. erosion resistance easy to operate according to claim 3 surges, it is characterised in that the screw and flap bottom Between be additionally provided with spring shim.
5. The choke valve 5. erosion resistance easy to operate according to claim 1 surges, it is characterised in that the adjusting pad uses thickness For 0.5mm flat metallic gaskets.
6. The choke valve 6. erosion resistance easy to operate according to claim 1 surges, it is characterised in that the fluid intake and fluid Outlet internal channel is coated with hard alloy.
7. The choke valve 7. erosion resistance easy to operate according to claim 1 surges, it is characterised in that the flap outer surface and valve Seat top section is coated with hard alloy and tungsten carbide.
8. The choke valve 8. erosion resistance easy to operate according to claim 7 surges, it is characterised in that the hard alloy uses nickel Based alloy.
9. The choke valve 9. erosion resistance easy to operate according to claim 7 surges, it is characterised in that the hard alloy is coated in The internal layer of section at the top of flap outer surface and valve seat, the tungsten carbide coated at the top of flap outer surface and valve seat section it is outer Layer.
10. The choke valve 10. erosion resistance easy to operate according to claim 7 surges, it is characterised in that the thickness of the hard alloy Degree is not less than 2mm, and the thickness of the tungsten carbide is not less than 0.5mm.