CN213176860U

CN213176860U - Rotatable cage sleeve type throttle valve

Info

Publication number: CN213176860U
Application number: CN202022195947.6U
Authority: CN
Inventors: 王亮; 廖柯熹; 何国玺
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-11
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a rotatable cage type throttle valve, which comprises a hand wheel wrench, a locking component, a screw rod, a valve cover, a sealing ring, a round packing box, an arc packing box, a valve rod, a valve core, a throttling sleeve, an inner baffle, a valve seat and a valve body component, wherein the valve is provided with an inlet channel and an outlet channel, and the valve seat is arranged near a fluid outlet channel; one end of the throttling sleeve is arranged on the valve seat, the other end of the throttling sleeve is arranged on the circular disc heel box, and the circumference of the sleeve is provided with a vertical throttling small hole; the inner baffle is arranged in the throttling sleeve, one section of the inner baffle is arranged on the valve seat, the other end of the inner baffle is arranged on the arc-shaped disc and the box, and the inner baffle shields two thirds of throttling small holes of the sleeve; the valve core is arranged in the throttling sleeve, one side of the valve core is attached to the sleeve, and the other side of the valve core is attached to the inner baffle; the valve rod is connected to the valve core, sequentially penetrates through the sealing ring, the valve cover and the locking component upwards, and is connected to the hand wheel wrench. The utility model discloses simple structure easily realizes, is particularly suitable for using long service life at the great well head of erosion ratio.

Description

Rotatable cage sleeve type throttle valve

Technical Field

The utility model relates to a rotatable formula cage shell type choke valve belongs to the oil and gas exploitation field.

Background

During natural gas production, gas is produced from the subsurface, typically high pressure gas. The produced gas needs to be depressurized for subsequent process treatment. The well head adopts the choke valve to carry out the step-down to the natural gas, and the step-down principle is for reducing fluid flow area, the increase velocity of flow, and the fluid rubs and hinders the increase in order to reduce pressure. The types of throttle valves currently used in the yard are cone-type throttle valves, fixed-type throttle valves, needle-type throttle valves, and fixed-type throttle valves. Different types of throttle valves or a combination of several different types of throttle valves are selected for use according to the field process. Since natural gas is produced from the ground, and is high-pressure gas and carries solid small particle impurities, the solid small particle impurities and fluid continuously wash the valve at the same speed, so that the valve is eroded, the throttling aperture is increased, the throttling effect is reduced, and the bearing capacity of the valve is also reduced. The throttle valve used in the prior art has short service life due to erosion vibration, a valve core in the valve needs to be frequently replaced, and the equipment material cost is increased.

Disclosure of Invention

The utility model provides a rotatable formula cage sleeve formula choke valve to can contact the throttle size area of fluid medium through the cooperation control of throttle sleeve and interior baffle. The erosion of the fluid to the non-working orifice is reduced by rotating the position of the throttling sleeve relative to the inner baffle to increase the service life of the throttling valve.

The novel rotatable cage type throttle valve comprises a hand wheel wrench, a locking component, a screw, a valve cover, a sealing ring, a circular packing box, an arc packing box, a valve rod, a valve core, a throttling sleeve, an inner baffle, a valve seat and a valve body assembly, wherein the valve is provided with an inlet channel and an outlet channel, and the valve seat is arranged close to a fluid outlet channel; one end of the throttling sleeve is arranged on the valve seat, the other end of the throttling sleeve is arranged on the circular disc heel box, and the circumference of the sleeve is provided with a vertical throttling small hole; the inner baffle is arranged in the throttling sleeve, one section of the inner baffle is arranged on the valve seat, the other end of the inner baffle is arranged on the arc-shaped disc and the box, and the inner baffle shields two thirds of throttling small holes of the sleeve; the valve core is arranged in the throttling sleeve, one side of the valve core is attached to the sleeve, and the other side of the valve core is attached to the inner baffle; the valve rod is connected to the valve core, sequentially penetrates through the sealing ring, the valve cover and the locking component upwards, and is connected to the hand wheel wrench; the valve core moves up and down by rotating the hand wheel wrench to control the throttle area; the circular disk heel is installed inside the valve body, the upper surface of the circular disk heel is connected with the sealing ring, the lower part of the circular disk heel is connected with the sleeve, and the inner part of the circular disk heel is connected with the arc-shaped packing.

In this use neotype design process, the throttle sleeve is direct to be connected with the valve body, does not have the hole between the two, can increase telescopic stability, is difficult for breaking failure accident.

The utility model discloses an example, the fixed unable rotation of internal baffle, the throttle sleeve can be relative internal baffle and rotate, and the internal baffle covers the telescopic two-thirds's of throttle hole, rotates one-third at every turn, and the throttle sleeve can used repeatedly the cubic in other words.

This use neotype an example, valve rod sub-unit connection case, upper portion are passed the sealing washer and are directly connected with the hand wheel spanner, reduce too much additional connection, increase the maneuverability of valve rod, go into the sleeve in the case adoption simultaneously, can play the effect of increase sleeve stability equally.

The novel use has the advantages of reasonable structural design, simple connection of all parts, long service life, convenient manufacture and low cost.

Drawings

FIG. 1 is a schematic diagram of a rotatable cage throttle valve according to one embodiment of the present invention.

Fig. 2 is a three-dimensional schematic view of a throttling sleeve and an internal baffle of a rotatable caged throttle valve employing one embodiment of the novel concept.

Fig. 3 is a three-dimensional structural diagram of a valve core of a rotatable cage type throttle valve according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings

As shown in fig. 1, in an embodiment of the present invention, a rotatable caged throttle valve comprises: the device comprises a hand wheel wrench 1, a locking component 2, a screw rod 3, a valve cover 4, a sealing ring 6, a circular packing box 8, an arc packing box 7, a valve rod 5, a valve core 16, a throttling sleeve 9, an inner baffle plate 11, a valve seat 12 and a valve body 13 assembly, wherein the valve is provided with an inlet 15 and an outlet 14 flow channel, and the valve seat 12 is arranged close to a fluid outlet 14 channel; one end of a throttling sleeve 9 is arranged on a valve seat 12, the other end of the throttling sleeve is arranged on a circular disc heel box 8, and the circumference of the sleeve is provided with a vertical throttling small hole 10; the inner baffle 11 is arranged in the throttling sleeve 9, one section of the inner baffle is arranged on the valve seat 12, the other end of the inner baffle is arranged on the arc-shaped disc and the box 7, and the inner baffle 11 shields two thirds of throttling small holes 10 of the sleeve 9; the valve core 16 is arranged in the throttling sleeve 9, and is attached to the sleeve 9 and the inner baffle plate 11; the valve rod 5 is connected to the valve core 16, sequentially penetrates through the sealing ring 6, the valve cover 4 and the locking component 2 upwards, and is connected to the hand wheel wrench 1; the valve core 16 is moved up and down by rotating the hand wheel wrench 1 to control the throttle area; the round disc heel box 8 is installed inside the valve body 13, and the upper surface of the round disc heel box is connected with the sealing ring 6, the lower part of the round disc heel box is connected with the sleeve 9, and the inner part of the round disc heel box is connected with the arc-shaped disc root 7.

As shown in fig. 2, the utility model discloses rotatable formula cage shell type choke valve has set up interior baffle 11 in throttle sleeve 9, and throttle sleeve 9's internal diameter and interior baffle 11 external diameter equal, guarantee that both connect closely, do not have the hole in inside. The inner baffle 11 is used for shielding two thirds of the throttling small holes 10 on the throttling sleeve 9, so that fluid flowing through the throttling sleeve 9 cannot erode other non-working throttling small holes 10, and the service life of the throttling sleeve is prolonged.

As shown in fig. 3, the valve core 16 is a cylinder and is circumscribed by a concentric arc body, so that the valve core can be tightly matched with the throttling sleeve, and meanwhile, the valve core 16 is a solid internally-inserted throttling sleeve, so that the bearing capacity of the throttling sleeve can be increased.

As shown in fig. 2, a plurality of rows of small throttling holes 10 are distributed on the throttling sleeve 9, each row of small throttling holes are distributed at equal intervals, the diameters of the small holes are the same, and the number of the small holes is large, so that the valve core 16 can realize sensitive change of throttling area by slightly moving up and down, and thus, the throttling pressure can be sensitively controlled.

As shown in figure 1, the lower part of the valve rod 5 is connected with the valve core 16, the upper part of the valve rod passes through the sealing ring 6 and the valve cover 4 and is directly connected with a hand wheel wrench, excessive accessory equipment is not needed, and the problem of control failure caused by accessory damage cannot occur in the control process.

As shown in fig. 1, install the arc dish with box 7 and round plate with box 8 above throttle sleeve 9 and interior baffle 11, follow the box through setting up two different dishes, produce with the arc dish and produce the friction damage with the box when case 16 in the in-process that reciprocates, only need to change the arc dish with box 7, need not reduce the use of material, reduce expense to the round plate with the change of box 8.

As shown in fig. 1, sealing rings 6 are provided between the valve cap 4 and the arc-shaped disk and box 7 and the circular disk and box 8, and are tightly coupled together by the screw 3.

As shown in figure 1, when the throttling pressure difference needs to be increased, the hand wheel wrench 1 is rotated to drive the valve cover rod 3 to move downwards, the valve core 16 moves downwards to shield the number of the throttling small holes 10, and the flow area is reduced. When the valve core 16 is at the uppermost part, the throttling sleeve generates friction but does not play a throttling role, and when the valve core 16 is at the lowermost part, the fluid passage is completely closed.

Claims

1. A rotatable cage type throttle valve comprises a hand wheel wrench, a locking component, a screw rod, a valve cover, a sealing ring, a circular packing box, an arc packing box, a valve rod, a valve core, a throttling sleeve, an inner baffle, a valve seat and a valve body assembly, wherein the valve is provided with an inlet channel and an outlet channel, and the valve seat is arranged close to a fluid outlet channel; one end of the throttling sleeve is arranged on the valve seat, the other end of the throttling sleeve is arranged on the circular disc heel box, and the circumference of the sleeve is provided with a vertical throttling small hole; the inner baffle is arranged in the throttling sleeve, one section of the inner baffle is arranged on the valve seat, the other end of the inner baffle is arranged on the arc-shaped disc and the box, and the inner baffle shields two thirds of throttling small holes of the sleeve; the valve core is arranged in the throttling sleeve, one side of the valve core is attached to the sleeve, and the other side of the valve core is attached to the inner baffle; the valve rod is connected to the valve core, sequentially penetrates through the sealing ring, the valve cover and the locking component upwards, and is connected to the hand wheel wrench; the valve core moves up and down by rotating the hand wheel wrench to control the throttle area; the round disc is installed inside the valve body with the box, and the upper surface is connected with the sealing ring, the lower part is connected with the sleeve, and the inner connection arc packing.

2. The rotatable caged throttle valve of claim 1 wherein the throttling sleeve is mounted directly on the valve body and an internal baffle is provided within the sleeve.

3. The rotatable caged sleeve throttle valve of claim 1 wherein the orifices on the circumference of the sleeve are distributed in a plurality of rows, and each row has an equal aperture size and is evenly spaced.

4. The rotatable caged throttle valve of claim 2 wherein the inner diameter of the throttling sleeve is equal to the outer diameter and height of the inner baffle, the inner baffle covering two thirds of the throttling aperture on the throttling sleeve.

5. The rotatable cage-type throttle valve according to claim 1, wherein the valve core is provided with an arc-shaped heel box and a circular heel box at the periphery thereof.

6. The rotatable caged sleeve throttle valve of claim 1 wherein a cylindrical seal is disposed between the bonnet and the spool and valve body.