CN215950447U

CN215950447U - Ultralow-temperature horizontal U-shaped metal ring compensation ball valve

Info

Publication number: CN215950447U
Application number: CN202121464672.XU
Authority: CN
Inventors: 马从云
Original assignee: Wugu Fluid Technology Wuxi Co ltd
Current assignee: Wugu Fluid Technology Wuxi Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-03-04
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses an ultralow-temperature horizontal U-shaped metal ring compensation ball valve which comprises a valve body and a valve body cap which are matched with each other, wherein a valve port is arranged in the horizontal direction of the valve body, a ball is arranged in the valve port, a rotatable valve rod is arranged in the vertical direction of the valve body cap, valve seats are arranged at the left end and the right end of the valve port, each valve seat comprises a left valve seat and a right valve seat, a packing seat is arranged on the outer diameter of the valve rod, packing is arranged on the packing seat, a shaft sleeve is arranged in the middle of the packing, a packing gland for compressing the packing is arranged at the upper end of the valve body, a packing pressing plate is fixed above the packing gland, and the packing pressing plate is connected with the valve body through a fastener; this spheroid valve has adopted the becket of horizontal U type, plays the elastic compensation effect, and reducible friction moment of torsion guarantees also can normal use under super low temperature, and the spheroid also is difficult to the damage with the sealed face of disk seat, has increased life, and the disk seat is the PCTFE material, has low temperature resistant effect.

Description

Ultralow-temperature horizontal U-shaped metal ring compensation ball valve

Technical Field

The utility model relates to a ball valve, in particular to ultralow-temperature horizontal U-shaped metal ring compensation.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard sealing V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard sealing V-shaped ball valve and a metal valve seat of the surfacing hard alloy have strong shearing force, and the hard sealing V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like.

The existing ball valve adopts the mode that the torque of an actuating mechanism is increased to achieve the purpose of control, the service life is shortened, sealing cannot be carried out when the temperature is lower than minus 180 degrees, and leakage is easy to generate.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ultralow-temperature horizontal U-shaped metal ring compensation ball valve which is used for overcoming the defects that the torque between the ball surface and the valve seat sealing surface of the ball valve in the prior art is large, the service life is influenced, and the ball valve cannot work in an ultralow-temperature environment.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses an ultralow-temperature horizontal U-shaped metal ring compensation ball valve which comprises a valve body and a valve body cap which are matched with each other, wherein a valve port is arranged in the horizontal direction of the valve body, a ball body is arranged in the valve port, a rotatable valve rod is arranged in the vertical direction of the valve body cap, valve seats are arranged at the left end and the right end of the valve port, and each valve seat comprises a left valve seat and a right valve seat.

Furthermore, a packing seat is arranged on the outer diameter of the valve rod, packing is arranged on the packing seat, a packing gland used for compressing the packing is arranged at the upper end of the valve body, a shaft sleeve is arranged between the packing and the packing gland, a packing pressure plate is fixed above the packing gland, and the packing pressure plate is connected with the valve body through a fastener.

Further, the valve seat is made of PCTFE material and comprises a left valve seat and a right valve seat.

Further, the sphere is of floating or fixed design.

Further, when the spheroid is floating design, install horizontal U type becket in the left side disk seat, open spheroidal upper end has the recess, cooperatees with the valve rod convex surface and reaches rotatory purpose, is carved with the recess on the valve rod, the semicircular ring is equipped with in the groove, the semicircular ring is fixed in valve body die cavity upper portion recess, prevents that the valve rod from receiving the high pressure to blow off.

Further, when the spheroid is fixed design, the spheroid is the through-hole design, fixes the spheroid through the last valve rod of its top and the bottom shaft of below, be equipped with the bottom shaft cover between bottom shaft and spheroid.

Furthermore, horizontal U-shaped metal rings are arranged in the left valve seat and the right valve seat, the valve seats and the ball body form a spherical sealing surface, and when the ball body rotates, the valve is opened and closed.

The utility model has the following beneficial effects: this spheroid valve has adopted the becket of horizontal U type, plays the elastic compensation effect, and reducible friction moment of torsion guarantees also can normal use under super low temperature, and the spheroid also is difficult to the damage with the sealed face of disk seat, has increased life, and the disk seat is the PCTFE material, has low temperature resistant effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic diagram of the floating ball of the present invention;

fig. 2 is a schematic structural diagram of the fixed sphere of the present invention.

In the figure: 1. a valve body; 2. a valve body cap; 3. a valve stem; 31. a filler seat; 32. a filler; 33. a packing gland; 34. a packing press plate; 4. a valve seat; 4a, a left valve seat; 4b, a right valve seat; 5. a sphere; 6. a shaft sleeve; 7. a metal ring; 8. a semicircular ring; 9. a bottom shaft; 10. a bottom shaft sleeve; 11. and (6) winding the mat.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example 1

As shown in fig. 1-2, an ultra-low temperature horizontal U-shaped metal ring compensation ball valve includes a valve body 1 and a valve body cap 2, which are mutually matched, wherein a valve port is arranged in the horizontal direction of the valve body 1, a ball 5 is arranged in the valve port, a rotatable valve rod 3 is arranged in the vertical direction of the valve body cap 2, a groove is formed at the upper end of the ball 5, the ball is matched with a convex surface of the valve rod 3 to achieve the purpose of rotation, valve seats 4 are arranged at the left and right ends of the valve port, each valve seat 4 includes a left valve seat 4a and a right valve seat 4b, and each valve seat 4 is made of PCTFE.

When the ball 5 is a floating structure, the left valve seat 4a is provided with a horizontal U-shaped metal ring 7.

The outer diameter of the valve rod 3 is provided with a packing seat 31, packing 32 is arranged on the packing seat 31, a shaft sleeve 6 is arranged between the packing 32 and a packing gland 33, the upper end of the valve body 1 is provided with the packing gland 33 for compressing the packing 32, a packing pressure plate 34 is fixed above the packing gland 33, and the packing pressure plate 34 is connected with the valve body 1 through a fastener.

A groove is carved on the valve rod 3, a semicircular ring 8 is arranged in the groove, and the semicircular ring 8 is fixed in the groove at the upper part of the cavity of the valve body 1 to prevent the valve rod 3 from being blown out under high pressure.

The valve body 1 and the valve body cap 2 are connected through a fastener, and the valve body 1 and the valve body cap 2 are sealed through a winding pad 11.

Example 2

As shown in fig. 1-2, an ultra-low temperature horizontal U-shaped metal ring compensation sphere valve comprises a valve body 1 and a valve body cap 2 which are matched with each other, a rotatable valve rod 3 is arranged in a longitudinal hole of the valve body 1 and the valve body cap 2, a transverse valve port is arranged on the valve body 1, a sphere 5 is arranged in the valve port, the sphere 5 is fixed, the fixed sphere 5 is designed as a through hole, the sphere 5 is fixed by an upper valve rod 3 above the fixed sphere and a bottom shaft 9 below the fixed sphere, and a bottom shaft sleeve 10 is arranged between the bottom shaft 9 and the sphere 5.

The left end and the right end of valve port are equipped with disk seat 4, disk seat 4 includes left disk seat 4a and right valve seat 4b, disk seat 4 is the PCTFE material, and when spheroid 5 was fixed spheroid structure, the becket 7 of horizontal U type was all installed to the left and right sides of disk seat 4, disk seat 4 and spheroid 5 formation spheroid sealed face, when spheroid 5 rotated and played the valve switch effect, when the valve was in below 180 degrees centigrade below zero, the PCTFE disk seat 4 produced the deformation, and horizontal U type becket 7 played the elasticity compensation effect, made PCTFE disk seat 4 continue sealed the use.

This globe valve has adopted the becket 7 of horizontal U type, plays the elastic compensation effect, has just so reduced the friction moment of torsion, guarantees also can normal use under super low temperature, and spheroid 5 also is difficult to damage with the sealed face of disk seat 4, has increased life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The ultra-low temperature horizontal U-shaped metal ring compensation ball valve is characterized by comprising a valve body and a valve body cap which are matched with each other, wherein a valve port is arranged in the horizontal direction of the valve body, a ball body is arranged in the valve port, a rotatable valve rod is arranged in the vertical direction of the valve body cap, and valve seats are arranged at the left end and the right end of the valve port.

2. The ultra-low temperature horizontal U-shaped metal ring compensation ball valve as claimed in claim 1, wherein a packing seat is arranged on the outer diameter of the valve rod, packing is arranged on the packing seat, a packing gland for compressing the packing is arranged at the upper end of the valve body, a shaft sleeve is arranged between the packing and the packing gland, a packing pressure plate is fixed above the packing gland, and the packing pressure plate is connected with the valve body through a fastener.

3. The ultra-low temperature horizontal U-shaped metal ring compensated globe valve of claim 1, wherein the valve seat is PCTFE, comprising a left valve seat and a right valve seat.

4. The ultra-low temperature horizontal U-ring compensated globe valve of claim 1, wherein the valve body and the valve body cap are connected by fasteners and the valve body cap are sealed by a wound gasket.

5. The ultra-low temperature horizontal U-ring compensation globe valve of claim 1, wherein the globe is of floating or fixed design.

6. The ultra-low temperature horizontal U-shaped metal ring compensation ball valve as claimed in claim 5, wherein when the ball is designed in a floating manner, the horizontal U-shaped metal ring is installed in the left valve seat, the upper end of the ball is provided with a groove, the groove is matched with the convex surface of the valve rod to achieve the purpose of rotation, the valve rod is provided with a groove, a semicircular ring is installed in the groove, the semicircular ring is fixed in the groove at the upper part of the cavity of the valve body to prevent the valve rod from blowing out under high pressure.

7. The ultra-low temperature horizontal U-shaped metal ring compensation sphere valve according to claim 5, wherein when the sphere is in a fixed design, the sphere is in a through hole design, the sphere is fixed by an upper valve rod above the sphere and a bottom shaft below the sphere, and a bottom shaft sleeve is arranged between the bottom shaft and the sphere.

8. The ultra-low temperature horizontal U-shaped metal ring compensation ball valve as claimed in claim 3, wherein horizontal U-shaped metal rings are installed in the left and right valve seats, the valve seats and the ball form a ball-shaped sealing surface, and the ball functions as a valve switch when rotating.