CN215763303U

CN215763303U - Tight device in top of sealing ring for valve for oil development

Info

Publication number: CN215763303U
Application number: CN202121621564.9U
Authority: CN
Inventors: 潘元苏; 孙伟; 孙曙光; 柳林
Original assignee: Jiangsu Jinfucun Petroleum Equipment Co ltd
Current assignee: Jiangsu Jinfucun Petroleum Equipment Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-08
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a jacking device of a sealing ring for a valve for oil exploitation, which comprises a valve body, wherein a sealing cavity is arranged at the center of the valve body, an upper cover is arranged outside the valve body, an installation cavity is arranged inside the upper cover, a screw rod is arranged on the central axis of the upper cover, a bearing is arranged at the top end of the screw rod, a threaded sleeve is in threaded connection with the bottom end of the screw rod, a plurality of pressure rods are fixed on the lower surface of the threaded sleeve at equal intervals, the sealing ring is nested in the sealing cavity, a pressure sensor is arranged on the side surface of the sealing ring, a motor is fixed at the top of the upper cover, and an electric cabinet is fixed on one side of the motor. This tight device in top of sealing ring for valve for oil development simple structure, the modern design, convenient to use has greatly made things convenient for the user operation, a large amount of operating time who has saved the user, and the person of facilitating the use observes, is favorable to in time discovering the trouble, and in time the maintenance avoids bigger economic loss.

Description

Tight device in top of sealing ring for valve for oil development

Technical Field

The utility model belongs to the technical field of valve equipment, and particularly relates to a jacking device of a sealing ring for a valve for oil exploitation.

Background

The valves are pipeline accessories for opening and closing pipelines, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be divided into shut-off valves, check valves, regulating valves and the like according to functions, the valves are control parts in a fluid conveying system and have functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing pressure relief and the like, the valves used in the fluid control system range from the simplest stop valves to various valves used in a very complicated automatic control system, the variety and the specification of the valves are quite various, in order to improve the sealing performance of the valves, the sealing ring plays a crucial role in the sealing performance of the valves, in order to prevent the sealing performance of the sealing ring from being poor, the sealing ring needs to be tightly pressed by using a pressing device, however, the pressing device of the existing sealing ring often needs a hand wheel rotated by a user to realize pressing, and is inconvenient for the user to operate, a large amount of time of a user is wasted, and in case the hand wheel is not rotated in place, the sealing effect is greatly reduced, and the practicability of the jacking device for the sealing ring is further reduced.

Disclosure of Invention

The utility model aims to provide a jacking device of a sealing ring for a valve for oil exploitation, which solves the problem that the existing jacking device for the sealing ring is inconvenient to use.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a tight device in top of sealing ring for valve for oil development, includes the valve body, the center department of valve body is equipped with sealed chamber, the outside of valve body is equipped with the upper cover, the upper cover is located sealed chamber directly over and through bolt and valve body fixed connection, the inside of upper cover is equipped with the installation cavity, be equipped with the screw rod on the axis of upper cover, the top of screw rod is equipped with bearing and bottom threaded connection has the swivel nut, the lower surface equidistance of swivel nut is fixed with a plurality of depression bar, nested sealing ring that has in the sealed chamber, the upper surface of sealing ring is equipped with a plurality of and depression bar assorted spacing cushion, the side surface of sealing ring is equipped with pressure sensor, the top of upper cover is fixed with the motor, one side of motor is fixed with the electric cabinet.

Preferably, the output shaft of the motor is connected with the screw shaft through a coupler.

Preferably, the side surface of the electric cabinet is provided with a liquid crystal display screen, a function button is arranged under the liquid crystal display screen, and the pressure sensor, the motor, the liquid crystal display screen and the function button are all electrically connected with the electric cabinet.

Preferably, an inclined support plate is arranged inside the valve body, a first through hole is formed in the center of the inclined support plate, the sealing cavity is fixed on the upper surface of the inclined support plate, and a second through hole is formed in the bottom of one side of the sealing cavity.

Preferably, the threaded sleeve is located in the installation cavity, and the distance between the lower surface of the threaded sleeve and the bottom end of the screw rod is not less than the distance between the lower surface of the sealing ring and the bottom of the sealing cavity.

Preferably, the bottom of the sealing cavity and the bottom of the sealing ring are all obliquely arranged, the inclination angle of the bottom of the sealing cavity is not smaller than that of the bottom of the sealing ring, and the height of the sealing ring is not smaller than the distance between the two through holes and the bottom of the sealing cavity.

The utility model has the technical effects and advantages that: this tight device in top of sealing ring for valve for oil development simple structure, the modern design, high durability and convenient use, through setting up the motor, the screw rod, swivel nut and depression bar, realized the mechanical control who reciprocates the sealing ring, replaced the operation mode of rotating the hand wheel through the manpower in the past, greatly made things convenient for the user operation, a large amount of user's operating time of having saved, through setting up pressure sensor and liquid crystal display, the convenient pressure that receives the sealing ring clearly shows, the person of facilitating the use observes, be favorable to in time discovering the trouble, in time the maintenance, avoid bigger economic loss.

Drawings

FIG. 1 is a sectional view of the structure of the present invention in a flow-through state;

FIG. 2 is a sectional view of the structure of the present invention in which the seal is pressed tightly;

fig. 3 is a detailed view of part a of the present invention.

In the figure: 1. a valve body; 2. sealing the cavity; 3. an upper cover; 4. a bolt; 5. a mounting cavity; 6. a screw; 7. a bearing; 8. a threaded sleeve; 9. a pressure lever; 10. limiting cushion blocks; 11. a seal ring; 12. a pressure sensor; 13. a motor; 14. an electric cabinet; 15. a liquid crystal display screen; 16. a function button; 17. an oblique support plate; 18. a first through hole; 19. and a second through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a jacking device of a sealing ring for a valve for oil exploitation, which comprises a valve body 1, a sealing cavity 2 is arranged at the center of the valve body 1, an upper cover 3 is arranged outside the valve body 1, the upper cover 3 is positioned right above the sealing cavity 2 and is fixedly connected with the valve body 1 through a bolt 4, an installation cavity 5 is arranged inside the upper cover 3, a screw rod 6 is arranged on the central axis of the upper cover 3, the top end of the screw rod 6 is provided with a bearing 7, the bottom end of the screw rod is in threaded connection with a threaded sleeve 8, a plurality of pressure rods 9 are fixed on the lower surface of the threaded sleeve 8 at equal intervals, a sealing ring 11 is nested in the sealing cavity 2, the upper surface of the sealing ring 11 is provided with a plurality of limiting cushion blocks 10 matched with the pressure rod 9, the side surface of the sealing ring 11 is provided with a pressure sensor 12, the top of the upper cover 3 is fixed with a motor 13, and one side of the motor is fixed with an electric cabinet 14.

The sealing ring 11 is an annular sealing member with a notch, and is pressed against the inner hole wall of the stationary member by the elasticity of the pressed member to perform a sealing function. The sealing ring 11 is placed in the annular groove of the sleeve, the sleeve and the shaft rotate together, and the sealing ring 11 is tightly abutted against the inner hole wall of the static part by the elasticity of the pressed notch, so that the sealing effect can be achieved. Each contact surface is hardened and polished. The seal ring 11 is made of chromium-containing wear-resistant cast iron and can be used at a sliding speed of less than 100m/s, or the seal ring 11 can be made of tin bronze if the sliding speed is in the range of 60 to 80 m/s.

The sealing ring 11 has various structures such as an integral sealing ring, a combined sealing ring, a surface surfacing hard alloy, a spraying ceramic and the like according to different manufacturing methods and materials. The seal ring 11 is a generic term for a dynamic ring and a static ring, and is the most important component constituting a mechanical seal. The sealing ring 11 determines to a large extent the service performance and the lifetime of the mechanical seal, and is therefore required: the sealing gasket has enough strength and rigidity, so that the sealing gasket is not damaged under working conditions, the deformation is as small as possible, and the sealing performance can be still kept when the working conditions fluctuate; the sealing end face has enough strength and corrosion resistance to ensure satisfactory service life under working conditions; thirdly, the sealing ring 11 has good thermal shock resistance, so that the material is required to have higher thermal conductivity and smaller linear expansion coefficient, and cannot crack when being subjected to thermal shock; the sealing ring 11 is matched with a small friction coefficient and good self-lubricating property, the material of the sealing ring 11 and the sealing fluid also have good wettability, and the sealing end face is not damaged if short-time dry friction occurs in work; fifthly, the stress of the sealing ring 11 is simple and symmetrical, and an integral structure is preferably considered, and a combined sealing ring can be adopted, so that a sealing end face spraying structure is avoided as much as possible; sixthly, the sealing ring 11 is easy to process and manufacture, convenient to install and maintain and low in price.

In addition, the output shaft of the motor 13 is connected with the screw 6 shaft through the coupler, so that the screw 6 is conveniently driven to rotate through the motor 13, the manual operation of rotating a hand wheel is omitted, the operation of a user is facilitated, and the time is saved. The side surface of the electric cabinet 14 is provided with a liquid crystal display screen 15, a function button 16 is arranged under the liquid crystal display screen 15, the pressure sensor 12, the motor 13, the liquid crystal display screen 15 and the function button 16 are electrically connected with the electric cabinet 14, so that the operation of each electronic component is conveniently coordinated in a unified manner through the electric cabinet 14, the electronic components form a functional whole, and meanwhile, the operation information of each electronic component is conveniently displayed on the liquid crystal display screen 15, so that a user can conveniently observe the electronic components. The inside slant backup pad 17 that is equipped with of valve body 1, the center department of slant backup pad 17 is equipped with through-hole 18, sealed chamber 2 is fixed on slant backup pad 17 upper surface, the bottom of sealed chamber 2 one side is equipped with through-hole two 19, when sealing ring 11 does not have the top tightly, makes things convenient for the fluid to pass through valve body 1.

It is worth mentioning that the swivel nut 8 is located installation cavity 5, the distance of the 8 lower surfaces of swivel nut and the 6 bottom of screw rod is not less than the distance of the 11 lower surfaces of sealing ring and the 2 bottoms of seal chamber, when motor 13 drives screw rod 6 and rotates, swivel nut 8 moves down, and depression bar 9 promotes the 11 downstream of sealing ring this moment, and this design is favorable to guaranteeing that sealing ring 11 can push up the bottom tightly at seal chamber 2. The bottom of sealed chamber 2 and sealing ring 11 all inclines all around and sets up, the inclination of 2 bottoms in sealed chamber is not less than the inclination of 11 bottoms in sealing ring, the height of sealing ring 11 is not less than the distance of two 19 distance from 2 bottoms in sealed chamber, conveniently realizes that sealing ring 11 and sealed chamber 2 closely laminate to can plug up through-hole one 18 and two 19 simultaneously, be favorable to realizing sealing when tight.

The working principle is as follows: this tight device in top of sealing ring for valve for oil development uses, at first starter motor 13 drives screw rod 6 and rotates, when screw rod 6 rotates, barrel 8 then downstream, depression bar 9 on the barrel 8 promotes sealing ring 11 downstream this moment, when the tight bottom in seal chamber 2 in sealing ring 11 top, through-hole two 19 is lived to the while seal, realize sealed effect, and simultaneously, the pressure sensor 12 of 11 side surfaces of sealing ring will receive shows on liquid crystal display 15, can judge the tight state in top of sealing ring 11 through observing the pressure value, when motor 13 reverse operation, reach the purpose of circulation.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a tight device in top of sealing ring for valve for oil development, includes valve body (1), its characterized in that: the sealing structure is characterized in that a sealing cavity (2) is arranged at the center of the valve body (1), an upper cover (3) is arranged outside the valve body (1), the upper cover (3) is located right above the sealing cavity (2) and is fixedly connected with the valve body (1) through a bolt (4), an installation cavity (5) is arranged inside the upper cover (3), a screw rod (6) is arranged on the central axis of the upper cover (3), a bearing (7) is arranged at the top end of the screw rod (6), a threaded sleeve (8) is connected to the bottom end of the screw rod in a threaded manner, a plurality of pressure rods (9) are fixed to the lower surface of the threaded sleeve (8) at equal intervals, a sealing ring (11) is embedded in the sealing cavity (2), a plurality of limiting cushion blocks (10) matched with the pressure rods (9) are arranged on the upper surface of the sealing ring (11), a pressure sensor (12) is arranged on the side surface of the sealing ring (11), and a motor (13) is fixed to the top of the upper cover (3), an electric cabinet (14) is fixed on one side of the motor.

2. The tightening device of the sealing ring for the valve for oil extraction according to claim 1, wherein: and an output shaft of the motor (13) is connected with the screw rod (6) through a coupler.

3. The tightening device of the sealing ring for the valve for oil extraction according to claim 1, wherein: the side surface of electric cabinet (14) is equipped with liquid crystal display (15), be equipped with function button (16) under liquid crystal display (15), pressure sensor (12), motor (13), liquid crystal display (15) and function button (16) all with electric cabinet (14) electric connection.

4. The tightening device of the sealing ring for the valve for oil extraction according to claim 1, wherein: the valve body (1) is internally provided with an oblique supporting plate (17), a through hole I (18) is formed in the center of the oblique supporting plate (17), the sealing cavity (2) is fixed on the upper surface of the oblique supporting plate (17), and a through hole II (19) is formed in the bottom of one side of the sealing cavity (2).

5. The tightening device of the sealing ring for the valve for oil extraction according to claim 1, wherein: the threaded sleeve (8) is located in the installation cavity (5), and the distance between the lower surface of the threaded sleeve (8) and the bottom end of the screw rod (6) is not less than the distance between the lower surface of the sealing ring (11) and the bottom of the sealing cavity (2).

6. The tightening device of the sealing ring for the valve for oil extraction according to claim 4, wherein: the bottom of sealed chamber (2) and sealing ring (11) all inclines all around and sets up, the inclination of sealed chamber (2) bottom is not less than the inclination of sealing ring (11) bottom, the height of sealing ring (11) is not less than the distance of through-hole two (19) apart from sealed chamber (2) bottom.