CN112923087A - Petroleum pipeline is with cuting device - Google Patents

Petroleum pipeline is with cuting device Download PDF

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Publication number
CN112923087A
CN112923087A CN201911233584.6A CN201911233584A CN112923087A CN 112923087 A CN112923087 A CN 112923087A CN 201911233584 A CN201911233584 A CN 201911233584A CN 112923087 A CN112923087 A CN 112923087A
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CN
China
Prior art keywords
shell
valve body
casing
fixedly connected
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911233584.6A
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Chinese (zh)
Inventor
徐欣婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201911233584.6A priority Critical patent/CN112923087A/en
Publication of CN112923087A publication Critical patent/CN112923087A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/10—Welded housings
    • F16K27/107—Welded housings for taps or cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F16K31/055—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0694—Spindle sealings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention discloses a cutting device for a petroleum pipeline, which comprises a first shell and a second shell, wherein the first shell and the second shell are symmetrically and fixedly welded, a spherical valve body is arranged inside the first shell and the second shell, a valve body shaft is fixedly connected above the spherical valve body and penetrates through the joint of the first shell and the second shell, one end, far away from the spherical valve body, of the valve body shaft is provided with a motor, the middle part of the spherical valve body is provided with a cutting hole, one ends, far away from the second shell and the first shell, of the first shell and the second shell are fixedly welded with conical shells, one ends, far away from the second shell and the first shell, of the two conical shells are respectively provided with a flange, and one ends, provided with the flanges, of the two conical shells are fixedly and hermetically connected with a high-pressure-bearing pipe through the flanges. According to the invention, the spherical valve body is adopted, the device is simple, the sealing performance is good, the cutting and shearing performance is strong, and the device is more suitable for petroleum cutting.

Description

Petroleum pipeline is with cuting device
Technical Field
The invention relates to the technical field of petroleum transportation pipeline equipment, in particular to a cutting device for a petroleum pipeline.
Background
The oil pipeline (also called pipeline, pipeline) is composed of oil pipe and its accessories, and according to the requirements of technological process, it is equipped with correspondent oil pump unit, and designed and installed into a complete pipeline system for completing the tasks of oil material receiving, unloading and transferring.
The oil pipeline system, i.e. the pipeline system for transporting petroleum and petroleum products, is mainly composed of oil pipeline, oil transportation station and other auxiliary related equipments, is one of the main equipments in petroleum storage and transportation industry, and is also the most main transportation equipment for crude oil and petroleum products.
The pipes of oil pipelines are generally steel pipes, and are connected into long-distance pipelines by welding, flanges and other connecting devices, and valves are used for opening and closing control and flow regulation. The oil pipeline mainly comprises conveying processes such as isothermal conveying, heating conveying, sequential conveying and the like. Oil pipelines have become one of the major means of transporting oil today and still have considerable potential for development in the future.
However, the existing oil pipeline system cut-off devices are only simple cut-off valves, cannot meet the increasing automation requirements, and cannot solve the problem of safety of oil transportation back pressure increase after cut-off.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a cutting device for a petroleum pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme: a cut-off device for petroleum pipelines comprises a first shell and a second shell, wherein the first shell and the second shell are symmetrically and fixedly welded, a spherical valve body is arranged inside the first shell and the second shell, a valve body shaft is fixedly connected above the spherical valve body and penetrates through the joint of the first shell and the second shell, a motor is arranged at one end of the valve body shaft, which is far away from the spherical valve body, a cut-off hole is formed in the middle of the spherical valve body, conical shells are fixedly welded at one ends of the first shell, which are far away from the second shell and the second shell, which are far away from the first shell, flanges are arranged at one ends of the two conical shells, which are far away from the second shell and the first shell respectively, a high pressure bearing pipe is fixedly and hermetically connected at one end provided with the flange, and pressure sensors are arranged inside the two conical shells, first casing top is close to conical housing's one end one side cambered surface fixedly connected with motor support, second casing top is close to conical housing's one end both sides cambered surface symmetry fixedly connected with motor support, and is three motor support is all keeping away from the one end and the motor bottom fixed connection of first casing and second casing, the motor top is provided with pressure alarm, the valve body axle is close to the urgent swing handle of the one end fixedly connected with of motor, first casing is provided with the valve body bearing with the inside spherical valve body below of second casing.
As a further description of the above technical solution:
the inner parts of the first shell, the second shell and the conical shell are axially provided with circulation holes, the center of the welding section of the first shell and the second shell is provided with a groove matched with the spherical valve body, and the upper parts of the welding section of the first shell and the second shell are provided with grooves matched with the valve body shaft.
As a further description of the above technical solution:
the first shell and the second shell are provided with sealing rings on the valve body shaft, and the sealing rings are in sealing sliding sleeve connection with the valve body shaft.
As a further description of the above technical solution:
the valve body shaft is connected with a limiting block at one end of the limiting bayonet.
As a further description of the above technical solution:
the size and the position of the cut-off hole correspond to the size and the position of the flow hole.
As a further description of the above technical solution:
the inner ring of the valve body bearing is fixedly connected with the spherical valve body, and the outer ring of the valve body bearing is fixedly connected with the first shell.
As a further description of the above technical solution:
the rotating handle direction of the emergency rotating handle is perpendicular to the axial direction of the cut-off hole.
The invention has the following beneficial effects:
1. the invention adopts the motor as the power of the device, and the emergency rotary handle is added, thereby avoiding the problem that the petroleum can not be cut off when the motor fails and enhancing the reliability of the device.
2. The invention is provided with the high pressure-bearing pipe part to prevent the damage of the back pressure generated when the petroleum is cut off to the tail end petroleum pipe.
3. The invention adopts the spherical valve body, has simple device, good sealing performance and strong cutting property, and is more suitable for petroleum cutting.
Drawings
FIG. 1 is a front cross-sectional view of a portion of a cutting apparatus for a petroleum pipeline in accordance with the present invention;
FIG. 2 is a top view of a cutting device for a petroleum pipeline according to the present invention;
FIG. 3 is a side view of a cutting apparatus for a petroleum pipeline according to the present invention;
fig. 4 is an enlarged view of fig. 1-a.
Illustration of the drawings:
1. a first housing; 2. a second housing; 3. cutting off the hole; 4. a motor; 5. a conical housing; 6. a pressure sensor; 7. a flange; 8. a motor bracket; 9. a pressure alarm; 10. a spherical valve body; 11. a high pressure bearing pipe; 12. a valve body shaft; 13. an emergency swing handle; 14. a limiting ring; 15. a limiting block; 16. a seal ring; 17. a valve body bearing; 18. a flow-through hole; 19. and a limiting bayonet.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, one embodiment of the present invention is provided: a cutting device for an oil pipeline comprises a first shell 1 and a second shell 2, wherein the first shell 1 and the second shell 2 are symmetrically and fixedly welded, a spherical valve body 10 is arranged inside the first shell 1 and the second shell 2 and used for cutting, a valve body shaft 12 is fixedly connected above the spherical valve body 10 and used for transmission, the valve body shaft 12 penetrates through the joint of the first shell 1 and the second shell 2, a motor 4 is arranged at one end of the valve body shaft 12, which is far away from the spherical valve body 10, and used for providing power, a cutting hole 3 is formed in the middle of the spherical valve body 10, conical shells 5 are fixedly welded at one ends of the first shell 1, which are far away from the second shell 2 and are far away from the first shell 1, flanges 7 are arranged at the ends of the two conical shells 5, which are far away from the second shell 2 and are far away from the first shell 1 respectively, and are used for sealing connection, high pressure bearing pipes 11 are fixedly and hermetically connected at the ends of the two conical, two conical housing 5 are inside all to be provided with pressure sensor 6 and to be used for detecting pressure, 1 top of first casing is close to one end one side cambered surface fixedly connected with motor support 8 of conical housing 5 and is used for supporting motor 4 and prevents to block urgent swing handle 13, 2 tops of second casing are close to one end both sides cambered surface symmetry fixedly connected with motor support 8 of conical housing 5 and are used for supporting the motor, three motor support 8 is all keeping away from the one end and the motor 4 bottom fixed connection of first casing 1 with second casing 2, the motor 4 top is provided with pressure alarm 9 and is used for sending alarm signal, the valve body axle 12 is close to the urgent swing handle 13 of one end fixedly connected with of motor 4 and is used for urgent manual operation, first casing 1 is provided with valve body bearing 17 with below the inside spherical valve body 10 of second casing 2 and is used for allevia.
The inner parts of the first shell 1, the second shell 2 and the conical shell 5 are respectively and axially provided with a circulation hole 18 for circulating oil, the centers of the welding sections of the first shell 1 and the second shell 2 are provided with grooves which are matched with the spherical valve 10 and used for accommodating the spherical valve 10, the upper parts of the welding sections of the first shell 1 and the second shell 2 are provided with grooves which are matched with the valve body shaft 12 and used for accommodating the valve body shaft 12, the upper surfaces of the first shell 1 and the second shell 2 are provided with a sealing ring 16 at the valve body shaft 12, the sealing ring 16 is in sealing sliding sleeve joint with the valve body shaft 12, a limiting ring 14 is fixedly connected above the sealing ring 16, a limiting bayonet 19 is arranged above the limiting ring 14, the limiting bayonet 19 is in a quarter ring shape, the valve body shaft 12 is fixedly connected with a limiting block 15 at one end which is connected with the limiting bayonet 19, the size and the position of the cutoff hole 3 correspond to the circulation hole 18, and the inner ring, the outer ring of the valve body bearing 17 is fixedly connected with the first shell 1, and the rotating handle direction of the emergency rotating handle 13 is perpendicular to the axial direction of the cut-off hole 3, so that the direction of the cut-off hole 3 can be indirectly observed.
The working principle is as follows: when the pipeline normally runs, the cutoff hole 3 in the spherical valve body 10 is aligned with the circulation hole 18 to enable oil to smoothly pass through, the emergency rotary handle 13 is perpendicular to the axial direction of the circulation hole 18 at the moment, after a cutoff instruction is sent, the motor 4 is started to drive the valve body shaft 12 to enable the spherical valve body 10 to rotate, so that the cutoff hole 3 in the spherical valve body 10 is staggered with the circulation hole 18 to further cut off the oil, the axial direction of the cutoff hole 3 is perpendicular to the axial direction of the circulation hole 18 at the moment, the emergency rotary handle 13 is horizontal to the axial direction of the circulation hole 18, the high-pressure pipe 11 bears oil back pressure impact, the pressure sensor monitors pressure change in the whole process, if pressure fluctuation is abnormal, the pressure alarm sends out an alarm signal, and when the motor 4 is abnormal, manual operation can be carried out through the emergency rotary handle 13 to cut off the oil.
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 invention.

Claims (7)

1. A petroleum pipeline cutting device comprises a first shell (1) and a second shell (2), and is characterized in that: first casing (1) and second casing (2) symmetry fixed weld, first casing (1) and second casing (2) inside are provided with spherical valve body (10), spherical valve body (10) top fixedly connected with valve body axle (12), and valve body axle (12) pass first casing (1) and second casing (2) seam crossing, the one end that spherical valve body (10) were kept away from in valve body axle (12) is provided with motor (4), spherical valve body (10) middle part has been seted up and has been cut hole (3), first casing (1) is kept away from second casing (2) and is kept away from the equal fixed weld of first casing (1) one end and have cone shell (5), two cone shell (5) are kept away from respectively second casing (2) and the one end of keeping away from first casing (1) and all are provided with flange (7), two cone shell (5) are all passed through flange (7) fixed seal and are sealed in the one end that is provided with flange (7) Is connected with a high pressure bearing pipe (11), pressure sensors (6) are arranged in the two conical shells (5), a motor bracket (8) is fixedly connected with the cambered surface of one side of the upper part of the first shell (1) close to one end of the conical shell (5), motor brackets (8) are symmetrically and fixedly connected with the two side arc surfaces of one end of the upper part of the second shell (2) close to the conical shell (5), the three motor brackets (8) are fixedly connected with the bottom of the motor (4) at one end far away from the first shell (1) and the second shell (2), a pressure alarm (9) is arranged at the top of the motor (4), one end of the valve body shaft (12) close to the motor (4) is fixedly connected with an emergency rotating handle (13), and a valve body bearing (17) is arranged below the spherical valve body (10) in the first shell (1) and the second shell (2).
2. The cutting device for petroleum pipelines according to claim 1, wherein: the valve body is characterized in that circulation holes (18) are axially formed in the first shell (1), the second shell (2) and the conical shell (5), a groove adaptive to the spherical valve body (10) is formed in the center of the welding section of the first shell (1) and the second shell (2), and a groove adaptive to the valve body shaft (12) is formed in the upper portion of the welding section of the first shell (1) and the second shell (2).
3. The cutting device for petroleum pipelines according to claim 1, wherein: and sealing rings (16) are arranged on the upper surfaces of the first shell (1) and the second shell (2) at the valve body shaft (12), and the sealing rings (16) are in sealing sliding sleeve connection with the valve body shaft (12).
4. A petroleum pipeline pipe shut-off device as defined in claim 1 and claim 3, wherein: sealing ring (16) top fixedly connected with spacing ring (14), spacing bayonet socket (19) have been seted up to spacing ring (14) top, and spacing bayonet socket (19) are the quarter annular, valve body axle (12) one end fixedly connected with stopper (15) with spacing bayonet socket (19).
5. The cutting device for petroleum pipelines according to claim 1, wherein: the size and the position of the cut-off hole (3) correspond to the size and the position of the circulating hole (18).
6. The cutting device for petroleum pipelines according to claim 1, wherein: the inner ring of the valve body bearing (17) is fixedly connected with the spherical valve body (10), and the outer ring of the valve body bearing (17) is fixedly connected with the first shell (1).
7. The cutting device for petroleum pipelines according to claim 1, wherein: the handle rotating direction of the emergency rotating handle (13) is vertical to the axial direction of the cut-off hole (3).
CN201911233584.6A 2019-12-05 2019-12-05 Petroleum pipeline is with cuting device Pending CN112923087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911233584.6A CN112923087A (en) 2019-12-05 2019-12-05 Petroleum pipeline is with cuting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911233584.6A CN112923087A (en) 2019-12-05 2019-12-05 Petroleum pipeline is with cuting device

Publications (1)

Publication Number Publication Date
CN112923087A true CN112923087A (en) 2021-06-08

Family

ID=76162270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911233584.6A Pending CN112923087A (en) 2019-12-05 2019-12-05 Petroleum pipeline is with cuting device

Country Status (1)

Country Link
CN (1) CN112923087A (en)

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Application publication date: 20210608