CN209943625U

CN209943625U - Special valve for oil field gas transmission pipeline

Info

Publication number: CN209943625U
Application number: CN201920583487.9U
Authority: CN
Inventors: 谢真如; 邓松
Original assignee: Zhejiang Sifang Valve Co Ltd
Current assignee: Zhejiang Sifang Valve Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-01-14
Anticipated expiration: 2029-04-26

Abstract

The utility model belongs to the technical field of pipeline valves, in particular to a special valve for an oil field gas transmission pipeline, which comprises a valve shell, a valve inner shell, a communication fixed plate, a control screw and a protective cover, wherein the valve inner shell is fixedly connected inside the valve shell through a plurality of reinforcing ribs, the bottom of the valve shell is provided with an arc-shaped bottom surface, two ends of the valve shell are fixedly connected with the communication fixed plate, and one side of the valve shell, which is far away from the two communication fixed plates, is provided with a clamping groove; the utility model discloses the bottom has the arc bottom surface, and inside has the valve inner shell, and during the gas circulation, mainly through the valve inner shell, along with the increase of live time, the condition that the inner wall was revealed probably appears, because the existence of valve outer wall can carry out the secondary protection this moment to during daily inspection, only need open sealed lid, stretch into the gas probe and can detect out whether reveal between valve outer shell and the valve inner shell.

Description

Special valve for oil field gas transmission pipeline

Technical Field

The utility model relates to a pipeline valve specifically is a special valve of oil field gas transmission pipeline.

Background

The gas transmission pipeline is mainly used for transmitting natural gas, liquefied petroleum gas and artificial gas. In long-distance transportation, a gas pipeline is specially used for conveying natural gas media, in cities and towns, the gas pipeline is used for conveying natural gas, liquefied petroleum gas, artificial gas and other media, a valve is a control part in a pipeline fluid conveying system and is used for changing the flow direction of a passage and the flow direction of the media, and the valve has the functions of diversion, cut-off, throttling, non-return, diversion, overflow pressure relief and the like, is used for fluid control, is particularly important for a butt joint valve between gas pipelines and mainly embodies the sealing performance and the safety of the valve, and because most of energy type gases are inflammable and explosive gases, the quality of the valve of one gas pipeline is mainly checked, and the valve is selected with the best pertinence.

Oil gas is at the in-process of carrying, need connect through the valve between each connecting tube, prior art's valve structure is single, it is explosion-proof, sealed effect is not good, the installation, for manual operation during the dismantlement, work efficiency is low, also can't guarantee seal and connection reliability, chinese patent discloses a special valve of oil field gas transmission pipeline, its publication number is (CN 206816906U), reliability and leakproofness that this patent technology can improve the connection, however, this patent does not have the valve under the prerequisite of instrument under the special circumstances, and the condition is revealed comparatively hard in the valve inspection, thereby lead to the security performance greatly reduced, consequently, technical staff in the field provides a special valve of oil field gas transmission pipeline, in order to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil field gas transmission pipeline special valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a special valve of oil field gas transmission pipeline, includes valve shell, valve inner shell, intercommunication fixed plate, control screw and visor, the valve shell is inside through a plurality of strengthening rib fixedly connected with the valve inner shell, the valve shell bottom has the arc bottom surface, the equal fixedly connected with in valve shell both ends intercommunication fixed plate, two the intercommunication fixed plate is kept away from valve shell one side has all seted up the block groove, valve shell up end threaded connection has control screw, control screw upper end fixedly connected with connecting rod, the connecting rod both ends all articulate there is the handle, valve shell upper end fixedly connected with thread circle, the visor opening part with thread circle threaded connection.

As a further aspect of the present invention: the reinforcing ribs are arc-shaped, every three reinforcing ribs are annularly distributed by taking the axial direction of the pipeline of the valve shell as the center, and each group of reinforcing ribs are linearly distributed along the axial direction of the pipeline.

As a further aspect of the present invention: the valve inner shell with be equipped with heat preservation and inoxidizing coating between the valve shell, the heat preservation with the laminating of valve inner shell, the inoxidizing coating is attached to the heat preservation outer wall.

As a further aspect of the present invention: the valve shell both sides have been seted up and have been accomodate the groove, it has to accomodate inslot portion the handle.

As a further aspect of the present invention: the bottom of the arc-shaped bottom surface is in threaded connection with a sealing cover, and a sealing ring is arranged on the inner wall of the sealing cover.

As a further aspect of the present invention: the thread ring is made of plastic, and the diameter difference between the diameter of the protective cover and the diameter of the pipe orifice at the upper end of the valve shell is smaller than the diameter of the handle.

As a further aspect of the present invention: and a sealing gasket is arranged in the clamping groove, and the cross section of the sealing gasket is concave.

As a further aspect of the present invention: the equal fixedly connected with stopper in connecting rod both ends, two stoppers all with the laminating of control screw rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the bottom has the arc bottom surface, the inside has the valve inner shell, when the gas circulates, mainly through the valve inner shell, along with the increase of live time, the condition that the inner wall revealed can appear, at this moment because the existence of valve outer wall, can carry out secondary protection, and during daily inspection, only need open sealed lid, stretch into between valve outer shell and the valve inner shell with the gas probe and can detect whether revealing, the external disclosure of relative ratio, the utility model discloses when taking place a bit of revealing, can all leave the gas revealed between two walls, thereby make operating personnel can detect whether revealing at the first time, the security performance of very big improvement product, and the double-deck design, can be when the valve inner shell goes wrong, valve outer shell and standing horse play the effect of second floor protection;

2. the utility model discloses it has two handles to articulate, when not using at ordinary times, places the inslot of accomodating in valve shell both sides, protects it through the visor for operating personnel need not be from taking the instrument, when needs, opens the visor and can use at once, improves this utility model's practical convenience.

Drawings

FIG. 1 is a schematic structural diagram of a valve dedicated for an oilfield gas transmission pipeline;

FIG. 2 is a schematic diagram of an inner casing of a valve for a gas pipeline in an oil field;

FIG. 3 is a schematic partial cross-sectional view of an inner casing of a valve for a gas pipeline in an oil field;

fig. 4 is a schematic top view of an inner casing of a valve for an oilfield gas pipeline.

In the figure: 1. a valve housing; 11. a thread ring; 12. an arcuate bottom surface; 121. a sealing cover; 13. a receiving groove; 2. a valve inner housing; 21. reinforcing ribs; 22. a heat-insulating layer; 23. a protective layer; 3. a connecting fixing plate; 31. a clamping groove; 32. a sealing gasket; 4. controlling the screw; 41. a connecting rod; 411. a limiting block; 42. a handle; 5. a protective cover.

Detailed Description

Please refer to fig. 1-4, in the embodiment of the utility model, a special valve for oil field gas transmission pipeline, including valve shell 1, valve inner shell 2, intercommunication fixed plate 3, control screw 4 and visor 5, valve shell 1 is inside through a plurality of strengthening rib 21 fixedly connected with valve inner shell 2, valve shell 1 bottom has arc bottom surface 12, the equal fixedly connected with intercommunication fixed plate 3 in valve shell 1 both ends, block groove 31 has all been seted up to 1 one side of valve shell is kept away from to two intercommunication

fixed plates

3, 1 up end threaded connection of valve shell has

control screw

4, 4 upper end fixedly connected with connecting rod 41 of control screw, 41 both ends of connecting rod all articulate there is

handle

42, 1 upper end fixedly connected with thread circle 11 of valve shell, 5 opening parts of visor and 11 threaded connection of thread circle.

In fig. 1: comprises a valve shell 1, a valve inner shell 2, a communicating fixing plate 3, a control screw rod 4 and a protective cover 5, wherein the bottom of the valve shell 1 is provided with an arc bottom surface 12, the arc bottom surface 12 can enable the bottom to be provided with a larger hollow cavity, when the valve inner shell 2 leaks, a little leakage can be remained between the valve shell 1 and the valve inner shell 2, thereby an operator can know the sealing condition of the valve inner shell 2 at the first time when checking, the two ends of the valve shell 1 are fixedly connected with the communicating fixing plates 3, the communicating fixing plates 3 are mainly convenient to be fixedly and hermetically connected with a pipe orifice, one sides of the two communicating fixing plates 3 far away from the valve shell 1 are respectively provided with a clamping groove 31, the mounting speed can be effectively increased through the clamping grooves 31, the communicating fixing plates 3 are dislocated with a pipeline, the sealing performance can be effectively improved, the upper end surface of, the upper end of the control screw rod 4 is fixedly connected with a connecting rod 41, the connecting rod 41 is mainly used for hinging two handles 42, the two ends of the connecting rod 41 are hinged with the handles 42, the handles 42 are vertically arranged at the two sides of the valve shell 1 when not in use, the occupied space is reduced, the upper end of the valve shell 1 is fixedly connected with a threaded ring 11, the threaded ring 11 can facilitate the fixed connection of the protective cover 5 and improve the fixed stability of the protective cover 5, the opening of the protective cover 5 is in threaded connection with the threaded ring 11, the bottom of the arc-shaped bottom surface 12 is in threaded connection with a sealing cover 121, when the inspection is not performed, the sealing cover 121 plays a role of sealing, the secondary leakage is prevented, so that the fuel gas is circulated to the outside, and the potential safety hazard is caused, the inner wall of the sealing cover 121 is provided with a sealing ring, the sealing ring can, under humid environment, metal thread circle 11 probably causes the oxidation to rust, thereby when opening visor 5, it is more arduous, the diameter of visor 5 and the poor diameter that is less than handle 42 of the 1 upper end mouth of pipe diameter of valve shell, handle 42 can't take place to rotate under the fixed state of visor 5, thereby improve the security and the stability of product, the inside seal ring 32 that has of block groove 31, seal ring 32 cross sectional shape is "concave" font, seal ring 32 of concave font can effectual increase with the area of contact of pipeline, when the block, wrap up the pipeline, thereby the sealing performance of product has been increased.

In fig. 2: valve shell 1 is inside through a plurality of strengthening rib 21 fixedly connected with valve inner shell 2, spacing apart in 1 and the valve inner shell 2 of valve shell during the effect that strengthening rib 21 the first aspect played, the second aspect is for strengthening mechanical structure, strengthening rib 21 shape is arc, convex strengthening rib 21 and the increase of valve inner shell laminating area, thereby make it more stable, every three uses 1 pipeline axial of valve shell to be a set of as the strengthening rib 21 that the center is the ring-type distribution, every group strengthening rib 21 all is linear distribution along pipeline axial direction, every three strengthening rib 21 of circle can be under the condition that improves mechanical strength, space between the shell has the circulation in messenger's whole valve, thereby when taking place to reveal, can examine in a place whether reveal.

In fig. 3: be equipped with heat preservation 22 and inoxidizing coating 23 between valve inner shell 2 and the valve outer shell 1, heat preservation 22 material mainly is the sponge structure, protects inside temperature, and heat preservation 22 and the laminating of valve inner shell 2, inoxidizing coating 23 adhere to in the outer wall of heat preservation 22, and the material of inoxidizing coating 23 mainly is the establishment steel mesh, increases the surface strength of 2 outer walls of valve inner shell, increases holistic security and stability ability.

In fig. 4: the groove 13 has been seted up to 1 both sides of valve shell, accomodate the occupation space that groove 13 can effectual reduction handle 42 to can carry on spacingly to handle 42, accomodate the inside handle 42 that has in groove 13, the equal fixedly connected with stopper 411 in connecting rod 41 both ends, two stopper 411 all laminate with control screw 4, stopper 411 can prevent that connecting rod 41 from droing from control screw 4, improves connecting rod 41's stability.

The utility model discloses a theory of operation is: when the gas valve is used, the two pipeline ports are respectively placed in the clamping grooves 31 communicated with the side surfaces of the fixed plate 3, the sealing washer 32 wraps the pipeline ports, the screw rod is used for fixed connection, when the gas valve is used, the protective cover 5 is rotated to take out the protective cover 5, then the handles 42 are pulled out from the accommodating grooves 13 at the two sides of the valve shell 1, the control screw rod 4 is driven to rotate by driving the connecting rod 41, so that the valve is opened, the limiting block 411 effectively places the connecting rod 41 to be separated from the control screw rod 4, the sealing cover 121 at the lower part is opened during inspection, the gas probe is deeply inserted into the cavity in the arc-shaped bottom surface 12, because a gas circulation space is formed between the reinforcing ribs 21, when the valve shell 2 leaks, gas is reserved at any position, the gas probe can directly catch the leakage condition, so that whether the gas probe is replaced or, the protective layer 23 can improve the safety and stability of the valve inner housing 2.

Claims

1. The special valve for the oil field gas transmission pipeline comprises a valve shell (1), a valve inner shell (2), a communicating fixing plate (3), a control screw rod (4) and a protective cover (5), and is characterized in that the valve shell (1) is internally and fixedly connected with the valve inner shell (2) through a plurality of reinforcing ribs (21), the bottom of the valve shell (1) is provided with an arc-shaped bottom surface (12), the two ends of the valve shell (1) are fixedly connected with the communicating fixing plate (3), two sides of the communicating fixing plate (3) far away from the valve shell (1) are respectively provided with a clamping groove (31), the upper end surface of the valve shell (1) is in threaded connection with the control screw rod (4), the upper end of the control screw rod (4) is fixedly connected with a connecting rod (41), the two ends of the connecting rod (41) are respectively hinged with a handle (42), the upper end of the valve shell (1, the opening of the protective cover (5) is in threaded connection with the thread ring (11).

2. The special valve for the oil field gas transmission pipeline according to claim 1, wherein the reinforcing ribs (21) are arc-shaped, every three reinforcing ribs (21) which are annularly distributed by taking the axial direction of the pipeline of the valve shell (1) as the center are in one group, and each group of the reinforcing ribs (21) are linearly distributed along the axial direction of the pipeline.

3. The special valve for the oil field gas transmission pipeline according to claim 1, wherein an insulating layer (22) and a protective layer (23) are arranged between the valve inner shell (2) and the valve outer shell (1), the insulating layer (22) is attached to the valve inner shell (2), and the protective layer (23) is attached to the outer wall of the insulating layer (22).

4. The special valve for the oil field gas transmission pipeline according to claim 1, wherein the valve shell (1) is provided with accommodating grooves (13) at two sides, and the handle (42) is arranged in the accommodating grooves (13).

5. The special valve for the oil field gas pipeline as claimed in claim 1, wherein a sealing cover (121) is connected to the bottom of the arc-shaped bottom surface (12) in a threaded manner, and a sealing ring is arranged on the inner wall of the sealing cover (121).

6. The special valve for the oil field gas transmission pipeline according to claim 1, wherein the thread ring (11) is made of plastic, and the diameter difference between the diameter of the protective cover (5) and the diameter of the pipe orifice at the upper end of the valve shell (1) is smaller than the diameter of the handle (42).

7. The special valve for the oil field gas pipeline as claimed in claim 1, wherein a sealing gasket (32) is arranged inside the clamping groove (31), and the cross section of the sealing gasket (32) is concave.

8. The special valve for the oil field gas pipeline according to claim 1, wherein two ends of the connecting rod (41) are fixedly connected with limit blocks (411), and the two limit blocks (411) are attached to the control screw rod (4).