Natural gas conveying pipeline flow adjusting device

Abstract

The utility model discloses a natural gas conveying pipeline flow adjusting device, and relates to the technical field of natural gas conveying. The device comprises a mounting sleeve correspondingly communicated with a conveying pipeline; an adjustable valve core is arranged in the mounting sleeve; the adjustable valve core is controlled by a control mechanism arranged on the outer wall of the mounting sleeve; the adjustable valve element comprises a driving shaft and a driven shaft which are connected to the middle of the installation sleeve in parallel. The driving shaft and the driven shaft are arranged in the vertical direction and are rotationally connected with the mounting sleeve; arc-shaped valve plates are respectively fixed on the outer walls of the driving shaft and the driven shaft; the valve plates are used for blocking the left side and the right side in the mounting sleeve correspondingly. Linkage gears are fixedly sleeved on the driving shaft and the driven shaft respectively; the two linkage gears are correspondingly meshed; the upper end of the driving shaft hermetically penetrates out of the upper side of the mounting sleeve. The flow regulating valve has the advantages that the flow regulating valve is more convenient and labor-saving to operate, opening and closing states can be switched more quickly, and flow regulation is quicker.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas conveying technical field especially relates to a natural gas conveying pipeline flow regulating device. BACKGROUND

[0002] Natural gas is a kind of energy commonly used in people's daily life, and the demand is huge, and the natural gas is conveyed by using conveying pipeline, and currently it is the most conventional way to convey natural gas.Natural gas conveying needs to control conveying flow in some cases, such as the separate regulation of the flow of each branch pipeline, the regulation of output flow when the natural gas is discharged for storage and the like.But the opening and closing control of the flow valve used in the flow regulation of conveying pipeline usually needs to rotate the valve with force, which leads to more laborious regulation, and the switching of on-off state is not fast enough, and there are use defects. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem existing in the above, provides a natural gas conveying pipeline flow regulating device, which is more convenient and labor-saving to operate, and can switch on-off state faster, so that flow regulation is faster.

[0004] The technical scheme adopted by the utility model is as follows: a natural gas conveying pipeline flow regulating device is provided, which comprises a mounting sleeve in communication with a conveying pipeline;An adjustable valve core is arranged in the mounting sleeve;The adjustable valve core is controlled by a control mechanism arranged on the outer wall of the mounting sleeve;

[0005] The adjustable valve core comprises a driving shaft and a driven shaft connected in parallel in the middle part of the mounting sleeve;The driving shaft and the driven shaft are both arranged vertically and are both rotatably connected with the mounting sleeve;The outer walls of the driving shaft and the driven shaft are respectively fixed with arc-shaped valve plates;The valve plates are respectively used to block the left and right sides of the inside of the mounting sleeve;Linkage gears are fixedly sleeved on the driving shaft and the driven shaft;The two linkage gears are in meshing correspondence;The upper end of the driving shaft is sealedly penetrated out from the upper side of the mounting sleeve;

[0006] The control mechanism comprises a supporting ring fixed on the upper end of the mounting sleeve;A plurality of positioning tooth grooves are formed in the circumferential direction on the upper end of the supporting ring;A spline shaft is coaxially fixed on the upper end of the driving shaft;The spline shaft penetrates through the middle part of the supporting ring;A control shaft is coaxially arranged above the spline shaft;A limiting slot is formed in the vertical direction on the lower end of the control shaft;The limiting slot is in plug-in correspondence with the spline shaft;A tension spring is arranged in the limiting slot;The upper end of the limiting slot is connected with the upper end of the spline shaft by the tension spring;A face gear is fixedly sleeved on the control shaft;The face gear corresponds to the supporting ring;The tension spring is used to make the face gear and the positioning tooth groove correspondingly engage;A hand wheel is fixedly arranged on the upper end of the control shaft.

[0007] Further optimize the technical scheme, the face gear of the natural gas pipeline flow regulating device is provided with an indicating scale line on the upper end in the radial direction; the upper end of the mounting sleeve is provided with a reference scale line in the left-right direction.

[0008] Further optimize the technical scheme, the mounting sleeve of the natural gas pipeline flow regulating device is fixed with a limiting frame on the upper end; the limiting frame is arranged above the face gear; when the limiting frame blocks the face gear, the upper part of the spline shaft is located in the limiting slot.

[0009] Further optimize the technical scheme, the valve plate of the natural gas pipeline flow regulating device is covered with an arc-shaped rubber edge on the outer side.

[0010] The natural gas pipeline flow regulating device has the advantages that:

[0011] The driving shaft and the driven shaft are respectively sleeved and fixed with linkage gears, the two linkage gears are correspondingly engaged, the valve plates on the two sides can be simultaneously closed or opened to the inside of the mounting sleeve, the two valve plates can be kept in a symmetrical state in the mounting sleeve, the natural gas conveying is more stable in flow, impact noise and impact vibration are reduced, and the service life is improved.

[0012] The spline shaft is coaxially fixed on the upper end of the driving shaft, the limiting slot is opened in the vertical direction at the lower end of the control shaft, the limiting slot is correspondingly inserted with the spline shaft, the rotation of the control shaft can drive the rotation of the driving shaft through the circumferential limitation of the limiting slot and the spline shaft, and the control of the opening and closing state of the valve plate is realized.

[0013] The corresponding engagement of the face gear and the positioning tooth groove can be realized through the tension of the tension spring, since the face gear is sleeved and fixed on the control shaft, the control shaft can be positioned in the circumferential direction, so that the valve plate is positioned, and the state of flow control is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a local structural schematic view of the control mechanism.

[0016] In the drawing, 1, mounting sleeve; 2, driving shaft; 3, driven shaft; 4, valve plate; 5, linkage gear; 6, supporting ring; 7, positioning tooth groove; 8, spline shaft; 9, control shaft; 10, limiting slot; 11, tension spring; 12, face gear; 13, hand wheel; 14, indicating scale line; 15, reference scale line; 16, limiting frame; 17, rubber edge. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0018] As shown in the figure, the natural gas conveying pipeline flow regulating device comprises a mounting sleeve 1 in communication with the conveying pipeline; an adjustable valve core is arranged inside the mounting sleeve 1; the adjustable valve core is controlled by a control mechanism arranged on the outer wall of the mounting sleeve 1;

[0019] The adjustable valve core comprises a driving shaft 2 and a driven shaft 3 which are connected in parallel in the middle part of the mounting sleeve 1; the driving shaft 2 and the driven shaft 3 are both arranged vertically and are both rotationally connected with the mounting sleeve 1; the outer walls of the driving shaft 2 and the driven shaft 3 are respectively fixed with arc-shaped valve plates 4; the valve plates 4 are respectively used for blocking the left and right sides inside the mounting sleeve 1; the driving shaft 2 and the driven shaft 3 are respectively sleeved with linkage gears 5; the two linkage gears 5 are in meshing correspondence; the upper end of the driving shaft 2 is sealedly penetrated out from the upper side of the mounting sleeve 1;

[0020] The control mechanism comprises a supporting ring 6 fixed on the upper end of the mounting sleeve 1; a plurality of positioning tooth grooves 7 are formed on the upper end of the supporting ring 6 in the circumferential direction; a spline shaft 8 is coaxially fixed on the upper end of the driving shaft 2; the spline shaft 8 penetrates through the middle part of the supporting ring 6; a control shaft 9 is coaxially arranged above the spline shaft 8; a limiting slot 10 is formed on the lower end of the control shaft 9 in the vertical direction; the limiting slot 10 is in plug-in correspondence with the spline shaft 8; a tension spring 11 is arranged inside the limiting slot 10; the upper end of the limiting slot 10 is connected with the upper end of the spline shaft 8 by the tension spring 11; a face gear 12 is fixedly sleeved on the control shaft 9; the face gear 12 is in correspondence with the supporting ring 6; the tension spring 11 is used for making the face gear 12 in meshing correspondence with the positioning tooth grooves 7; a hand wheel 13 is fixed on the upper end of the control shaft 9 in correspondence.

[0021] In the technical solution, when no external force is applied, the tension of the tension spring 11 can make the face gear 12 and the positioning tooth grooves 7 keep in the meshing state, at this time, the position of the driving shaft 2 is locked, and the positions of the driven shaft 3 and the two valve plates 4 are also kept in the positioned state, at this time, the natural gas conveying flow regulating state is kept.

[0022] When it is needed to change the conveying flow regulation, the tension of the tension spring 11 is overcome, the control shaft 9 is lifted by the hand wheel 13, the meshing state of the face gear 12 and the positioning tooth grooves 7 is released, at this time, the control shaft 9 is rotated, the driving shaft 2 is driven to rotate, the driven shaft 3 is rotated with the meshing of the two linkage gears 5, and the opening and closing states of the two valve plates 4 can be changed, so that the regulation of the blocking state of the mounting sleeve 1 is realized.

[0023] In the above process, when the rotating control shaft 9 can directly drive the rotation of the driving shaft 2 and the driven shaft 3, the state of the valve plate 4 changes, and the valve plate 4 rotates by the angle of the rotating control shaft 9. Compared with the traditional valve, the operation is more convenient. In addition, after the engagement of the face gear 12 and the positioning tooth groove 7 is released, the rotating control shaft 9 is not constrained by excessive external force, and the rotating control shaft 9 can be rotated faster by the hand wheel 13. The switching of the opening and closing state of the valve plate 4 is faster, especially when the valve plate 4 is switched from the closed state to the open state in the installation sleeve 1, the flow of natural gas generates a pushing force, which can push the valve plate 4 to the maximum open state more quickly.

[0024] The upper end of the face gear 12 is provided with an indicating line 14 in the radial direction; the upper end of the installation sleeve 1 is provided with a reference line 15 in the left-right direction. By comparing the deviation angle of the indicating line 14 and the reference line 15, the opening angle of the valve plate 4 can be reflected, which is beneficial to make the adjustment state more intuitive.

[0025] The upper end of the installation sleeve 1 is fixed with a limiting frame 16; the limiting frame 16 is arranged above the face gear 12; when the limiting frame 16 blocks the face gear 12, the upper part of the spline shaft 8 is in the limiting slot 10. By blocking the face gear 12 with the limiting frame 16, the lifting amplitude of the control shaft 9 can be limited, and the spline shaft 8 can be prevented from being separated from the limiting slot due to excessive lifting, thereby ensuring the use reliability.

[0026] The outer side of the valve plate 4 is covered with an arc-shaped rubber edge 17. By arranging the rubber edge 17, the rigid friction between the valve plate 4 and the inner wall of the installation sleeve 1 can be avoided, and the excessive wear of the installation sleeve 1 or the valve plate 4 can be avoided.

[0027] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A natural gas pipeline flow regulating device, characterized by: The installation sleeve (1) is communicated with the conveying pipeline, and an adjustable valve core is arranged inside the installation sleeve (1); the adjustable valve core is controlled by a control mechanism arranged on the outer wall of the installation sleeve (1). The adjustable valve core comprises a driving shaft (2) and a driven shaft (3) which are connected in parallel in the middle of the installation sleeve (1); the driving shaft (2) and the driven shaft (3) are arranged in the vertical direction and are rotatably connected with the installation sleeve (1); the outer walls of the driving shaft (2) and the driven shaft (3) are respectively fixed with arc-shaped valve plates (4); the valve plates (4) are respectively used for blocking the left and right sides inside the installation sleeve (1); the driving shaft (2) and the driven shaft (3) are respectively sleeved with linkage gears (5); the two linkage gears (5) are correspondingly engaged; the upper end of the driving shaft (2) is sealedly penetrated from the upper side of the installation sleeve (1); The control mechanism comprises a supporting ring (6) fixed on the upper end of the installation sleeve (1); a plurality of positioning tooth grooves (7) are formed in the circumferential direction on the upper end of the supporting ring (6); a spline shaft (8) is coaxially fixed on the upper end of the driving shaft (2); the spline shaft (8) penetrates the middle of the supporting ring (6); a control shaft (9) is coaxially arranged above the spline shaft (8); a limiting slot (10) is formed in the vertical direction on the lower end of the control shaft (9); the limiting slot (10) is correspondingly inserted with the spline shaft (8); a tension spring (11) is arranged inside the limiting slot (10); the upper end of the limiting slot (10) is connected with the upper end of the spline shaft (8) through the tension spring (11); a face gear (12) is fixedly sleeved on the control shaft (9); the face gear (12) corresponds to the supporting ring (6); the tension spring (11) is used for making the face gear (12) correspondingly engage with the positioning tooth groove (7); a hand wheel (13) is correspondingly fixed on the upper end of the control shaft (9).

2. The natural gas pipeline flow regulating device of claim 1, wherein: An indicating scale (14) is arranged in the radial direction on the upper end of the face gear (12); a reference scale (15) is arranged on the upper end of the installation sleeve (1) in the left-right direction.

3. The natural gas pipeline flow regulating device of claim 1, wherein: A limiting frame (16) is fixed on the upper end of the installation sleeve (1); the limiting frame (16) is arranged above the face gear (12); when the limiting frame (16) blocks the face gear (12), the upper part of the spline shaft (8) is located in the limiting slot (10).

4. The natural gas pipeline flow regulating device of claim 1, wherein: The outer side of the valve plate (4) is covered with an arc-shaped rubber edge (17). The outer side of the valve plate (4) is covered with an arc-shaped rubber edge (17).

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