Petroleum pipeline valve

Abstract

The invention relates to the field of valves, in particular to a petroleum pipeline valve. Comprising two cavities with communicating holes in the middles, an inner ring corresponding to the communicating holes is arranged on the inner wall of each cavity, a communicating pipe is fixedly connected to each cavity, an extension pipe is in threaded connection with each communicating pipe, an installation table coaxial with the communicating holes is arranged on the outer wall of each cavity, a guide screw is arranged on each installation table, and the extension pipe is in threaded connection with the guide screw. Each guide screw is connected with a screw rod, the end of each screw rod is provided with a ring sleeve coupled with the inner ring, the outer walls of the two cavities are detachably connected with sleeve frames, and the two sleeve frames are fixedly connected through a spacing rod and a nut. A pipeline through which fluid flows through the valve can be cut off, and maintenance and replacement of the valve are facilitated; the valve element can be blocked from the two sides, so that the valve is closed; and two parts for closing the valve core can be mechanically driven to move, so that the opening and closing of the valve are mechanically realized.

Description

Technical Field

[0001] The invention relates to the field of valves, and more particularly to a petroleum pipeline valve. Background Art

[0002] Regulating valves are widely used to control the process parameters of gas, liquid, steam and other media, such as pressure, flow, temperature, and liquid level, to maintain a given value. At present, regulating valves play a very important role in modern control. Whether the regulating valve can work normally directly affects the use effect of the entire pipeline control system. The existing valves are opened and closed by the movement of the valve core. When the valve is in the open state and there is a problem and it cannot be closed, the pipeline where the fluid flows through the valve cannot be cut off. The pipeline where the valve is located continues to flow through the fluid. A large amount of fluid will leak out when it is disassembled for maintenance. Closing the main valve will affect the circulation of other pipelines. Therefore, this conventional valve core is not convenient for valve maintenance and replacement. Summary of the invention

[0003] In order to improve the deficiencies of the prior art, the present invention provides a petroleum pipeline valve, which can cut off the pipeline through which the fluid flows, and is convenient for the inspection and replacement of the valve.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A petroleum pipeline valve comprises two cavities with a connecting hole in the middle, an inner ring corresponding to the connecting hole is arranged on the inner wall of each cavity, a connecting pipe is fixedly connected to each cavity, an extension pipe is threadedly connected to each connecting pipe, a mounting platform coaxial with the connecting hole is arranged on the outer wall of each cavity, a guide screw is arranged on each mounting platform, each guide screw is connected to a screw rod, a ring sleeve coupled with the inner ring is arranged at the end of each screw rod, and sleeve frames are detachably connected to the outer walls of the two cavities, and the two sleeve frames are fixedly connected by a spacer rod and a nut.

[0006] Furthermore, the axis of the communicating hole is perpendicular to the axes of the two communicating tubes.

[0007] Furthermore, each of the extension tubes is threadedly connected with an adjustment sleeve, each of the adjustment sleeves is fixedly connected with an adjustment plate I, each of the adjustment sleeves is rotatably connected with an outer tube, each of the outer tubes is fixedly connected with an adjustment plate II corresponding to the adjustment plate I, and corresponding through holes are provided on the adjustment plate II and the adjustment plate I.

[0008] Furthermore, each of the screw rods is fixedly connected with a rotating handle.

[0009] Furthermore, each of the screw rods is fixedly connected to a middle wheel, each mounting platform is provided with a guide hole, each guide hole is slidably connected to a guide rod, each guide rod is fixedly connected to a synchronous frame rotatably connected to the corresponding screw rod, each synchronous frame is rotatably connected to a driving wheel, each driving wheel is fixedly connected to a transmission rod, each mounting platform is fixedly connected to a side frame, and each side frame is rotatably connected to a transmission sleeve coupled to the transmission rod.

[0010] The beneficial effects of the petroleum pipeline valve of the present invention are: it can cut off the pipeline through which the fluid flows through the valve, making it easy to inspect and replace the valve; it can also close the valve by blocking the valve core from both sides; it can also mechanically drive the movement of the parts of the two closing valve cores to mechanically realize the opening and closing of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 This is a schematic diagram of the structure of a petroleum pipeline valve;

[0013] Figure 2 is a schematic diagram of the structure of the connection cavity;

[0014] Figure 3 is a schematic diagram of the structure of the cavity;

[0015] Figure 4 It is a schematic diagram of the structure of a half-section of the cavity;

[0016] Figure 5 is a schematic diagram of the structure of the outer tube;

[0017] Figure 6 It is the structural schematic diagram of the adjustment plate I;

[0018] Figure 7 It is the structural schematic diagram of the regulating plate II;

[0019] Figure 8 A schematic diagram of the structure for driving the screw to rotate;

[0020] Fig. 9 for Figure 8 a side view of the structure shown;

[0021] Fig.10 This is a schematic diagram of the structure of a mechanically driven valve opening and closing.

[0022] In the figure: cavity 11; connecting hole 12; connecting pipe 13; extension pipe 14; inner ring 15; mounting platform 16; guide hole 17; sleeve frame 18; spacer rod 19; screw rod 21; middle wheel 22; ring sleeve 23; handle 24; outer tube 31; adjustment plate II 32; adjustment sleeve 33; adjustment plate I 34; synchronous frame 41; guide rod 42; driving wheel 43; side frame 44; transmission rod 45; toothed wheel I 46; transmission sleeve 47; belt shaft 51; toothed wheel II 52; toothed belt 53. DETAILED DESCRIPTION

[0023] refer to Figure 1 , 2 , 3, 4, detailed description of the implementation examples of opening and closing of oil pipeline valves:

[0024] A petroleum pipeline valve, comprising two cavities 11 with a connecting hole 12 processed in the middle, the two cavities 11 are spherical after being coupled, the two cavities 11 are provided with mutually coupled panels, the connecting hole 12 is provided in the middle of each panel, an inner ring 15 corresponding to the connecting hole 12 is fixedly connected to the inner wall of each cavity 11, a connecting pipe 13 is fixedly connected to each cavity 11, and an extension pipe 14 is threadedly connected to each connecting pipe 13, so that pipelines can be connected through the extension pipe 14, and liquid circulation is achieved through the two extension pipes 14, the two connecting pipes 13, the two cavities 11 and the two mutually connected connecting holes 12, a mounting platform 16 coaxial with the connecting hole 12 is fixedly connected to the outer wall of each cavity 11, a guide spiral is processed on each mounting platform 16, a screw 21 is spirally connected to each guide spiral, and a ring sleeve 23 coupled to the inner ring 15 is fixedly connected to the end of each screw 21, so that the two screws 21 can be rotated in the guide of the corresponding guide spiral The two screws 21 drive the two ring sleeves 23 to move. When the two ring sleeves 23 are sleeved on the two inner rings 15, the two communicating holes 12 can be sealed to close the valve. The two screws 21 can be rotated to drive the two ring sleeves 23 away from the two inner rings 15 to open the valve, thereby allowing the movement of the fluid, thereby realizing the circulation and closing of the fluid. The valve can be closed by coupling the two ring sleeves 23 with the two inner rings 15. The movement of the two ring sleeves 23 increases the tightness of the valve closure, and the opening and closing effect of the valve can be more fully performed. The outer walls of the two cavities 11 are detachably connected with a sleeve frame 18. The two sleeve frames 18 are fixedly connected by spacer rods 19 and nuts. The connection of the two sleeve frames 18 by multiple spacer rods 19 and nuts can realize the fixed connection of the two cavities 11. The coupling of the two corresponding panels and the communicating holes 12 and the sealing at the connection can ensure the full flow of the fluid and prevent the leakage of the fluid.

[0025] refer to Figure 4, details an embodiment of a fluid for buffering flow:

[0026] The axis of the connecting hole 12 is perpendicular to the axes of the two connecting tubes 13, so that after the fluid flowing from the connecting tube 13 flows into the cavity 11, it flows through the connecting hole 12 after being buffered, thereby buffering by changing the path of fluid flow, preventing the fluid impact under long-term use from causing wear of the valve and affecting the use effect of the valve.

[0027] refer to Figure 1 , 5 , 6 and 7, detailed description of embodiments of valves that facilitate maintenance:

[0028] Each of the extension tubes 14 is threadedly connected with an adjusting sleeve 33, each of which is fixedly connected with an adjusting plate I34, each of which is rotatably connected with an outer tube 31, each of which is fixedly connected with an adjusting plate II32 corresponding to the adjusting plate I34, and corresponding through holes are processed on the adjusting plates II32 and I34. When repairing the valve, the two adjusting sleeves 33 are rotated, and the adjusting sleeves 33 drive the adjusting plates I34 to rotate so that the through holes of the adjusting plates I34 are staggered with the corresponding through holes of the adjusting plates II32, so that the fluid cannot flow, and the extension tube 14 is subsequently rotated to adjust the extension tube 14 and the corresponding adjusting sleeves 33, so that the two cavities 11 can be disassembled for repair.

[0029] refer to Figure 8 , the embodiment of manually rotating the two screw rods 21 to open and close the valve is described in detail:

[0030] A rotating handle 24 is fixedly connected to each of the screw rods 21 , so that the screw rods 21 can be rotated by rotating the two rotating handles 24 , thereby realizing the movement of the ring sleeve 23 and realizing manual opening and closing of the valve.

[0031] refer to Figure 1 , 8 , 9 and 10, detail embodiments of mechanically opening and closing valves:

[0032] Each screw rod 21 is fixedly connected to a middle wheel 22, each mounting platform 16 is processed with a guide hole 17, each guide hole 17 is slidably connected to a guide rod 42, each guide rod 42 is fixedly connected to a synchronous frame 41 rotatably connected to the corresponding screw rod 21, each synchronous frame 41 is rotatably connected to a driving wheel 43, each driving wheel 43 is fixedly connected to a transmission rod 45, each mounting platform 16 is fixedly connected to a side frame 44, each side frame 44 is rotatably connected to a transmission sleeve 47 coupled to the transmission rod 45. Each transmission sleeve 47 is fixedly connected to a toothed wheel I 46, and the sleeve frame 18 on the same side as the toothed wheel I 46 is rotatably connected to two belt shafts 51, each belt shaft 51 is fixedly connected to a toothed wheel II 52, and each toothed wheel II 52 is driven by a toothed belt 53 with the corresponding toothed wheel I 46. Each belt shaft 51 is fixedly connected to the output shaft of the reduction motor I respectively, and the two reduction motors I are fixedly connected to the corresponding sleeve frame 18. The two reduction motors I are started, and the two reduction motors I drive the two belt shafts 51 to rotate, and the two belt shafts 51 drive the two toothed wheels II 52 to rotate, and the two toothed wheels II 52 drive the two toothed wheels I 46 to rotate through the toothed belt 53. A limit plate of the limited toothed belt 53 is threadedly connected on each belt shaft 51, so as to ensure the stable transmission of the toothed belt 53. The two toothed wheels I 46 drive the two transmission sleeves 47 to rotate when the two transmission sleeves 47 drive the two transmission rods 45 to rotate, and the two transmission rods 45 drive the two driving wheels 43 to rotate. The two driving wheels 43 mesh and drive the two middle wheels 22 to rotate, and the two middle wheels 22 drive the two screws 21 to rotate, thereby realizing the movement of the ring sleeve 23, and then realizing the mechanical opening and closing of the valve. It is also possible to start a reduction motor I separately to move a single ring sleeve 23 to realize the opening and closing of the valve. The synchronous frame 41 limits the driving wheel 43 to ensure that the driving wheel 43 moves with the movement of the middle wheel 22, fully ensuring that the driving wheel 43 and the middle wheel 22 are always meshed and transmitted, and the guide hole 17 guides the guide rod 42 to ensure the stable sliding of the synchronous frame 41, thereby ensuring the stable transmission of the driving wheel 43 and the middle wheel 22.

[0033] refer to Figure 4 , an embodiment of coupling the ring sleeve 23 with the inner ring 15 is described in detail:

[0034] Each of the ring sleeves 23 is provided with two ring plates coupled with the inner wall and outer wall of the inner ring 15, and each ring sleeve 23 is fixedly connected with a rubber pad, so that the two ring plates of each ring sleeve 23 can be coupled to the inner side and the outer side of the inner ring 15, and can fully seal the inner ring 15, thereby sealing the valve flow channel and realizing the closure of the valve.

[0035] refer to Figure 2 , an embodiment of fixing the two cavities 11 is described in detail:

[0036] One end of each of the spacer rods 19 is processed with a thread connected to a nut, and a spacer sleeve is sleeved in the middle of the spacer rod 19, so that the spacer rod 19 passes through the two sleeves 18, and the two sleeves 18 are supported by the spacer sleeve sleeved in the middle of the spacer rod 19, and the two sleeves 18 are fixed to the two cavities 11 by the connection between the nut and the spacer rod 19.

[0037] refer to Figure 5 , detailed description of the embodiment of preventing fluid leakage:

[0038] A rotating sealing ring is provided between each of the adjusting sleeves 33 and the corresponding outer tube 31 , so that the adjusting sleeve 33 and the outer tube 31 are sealed by rotating the sealing ring to prevent leakage when the adjusting sleeve 33 is rotated.

[0039] refer to Figure 8 and 9 , the embodiment of the transmission of the transmission rod 45 and the transmission sleeve 47 is described in detail:

[0040] Each transmission rod 45 is symmetrically provided with a transmission plane, and the transmission sleeve 47 is coupled to the transmission rod 45 , and transmission is performed through the symmetrically provided transmission plane, thereby achieving stable transmission between the transmission rod 45 and the transmission sleeve 47 .

Claims

1. A petroleum pipeline valve, characterized in that: The invention comprises two cavities (11) with a connecting hole (12) in the middle, an inner ring (15) corresponding to the connecting hole (12) is arranged on the inner wall of each cavity (11), a connecting pipe (13) is fixedly connected to each cavity (11), an extension pipe (14) is threadedly connected to each connecting pipe (13), a mounting platform (16) coaxial with the connecting hole (12) is arranged on the outer wall of each cavity (11), a guide screw is arranged on each mounting platform (16), each guide screw is connected to a screw rod (21), and a ring sleeve (23) coupled to the inner ring (15) is arranged at the end of each screw rod (21), and the outer walls of the two cavities (11) are detachably connected to a sleeve frame (18), and the two sleeve frames (18) are fixedly connected via a spacer rod (19) and a nut.

2. A petroleum pipeline valve according to claim 1, characterized in that: The axis of the connecting hole (12) is perpendicular to the axes of the two connecting pipes (13).

3. The petroleum pipeline valve according to claim 1, characterized in that: Each of the extension tubes (14) is threadedly connected with an adjustment sleeve (33), each of the adjustment sleeves (33) is fixedly connected with an adjustment plate I (34), each of the adjustment sleeves (33) is rotatably connected with an outer tube (31), each of the outer tubes (31) is fixedly connected with an adjustment plate II (32) corresponding to the adjustment plate I (34), and corresponding through holes are provided on the adjustment plate II (32) and the adjustment plate I (34).

4. The petroleum pipeline valve according to claim 1, characterized in that: A rotating handle (24) is fixedly connected to each of the screw rods (21).

5. The petroleum pipeline valve according to claim 1, characterized in that: Each of the screw rods (21) is fixedly connected to a middle wheel (22); each mounting platform (16) is provided with a guide hole (17); each guide hole (17) is slidably connected to a guide rod (42); each guide rod (42) is fixedly connected to a synchronous frame (41) rotatably connected to the corresponding screw rod (21); each synchronous frame (41) is rotatably connected to a driving wheel (43); each driving wheel (43) is fixedly connected to a transmission rod (45); each mounting platform (16) is fixedly connected to a side frame (44); each side frame (44) is rotatably connected to a transmission sleeve (47) coupled to the transmission rod (45).

6. The petroleum pipeline valve according to claim 5, characterized in that: A toothed wheel I (46) is fixedly connected to each transmission sleeve (47), and two belt shafts (51) are rotatably connected to the sleeve frame (18) on the same side as the toothed wheel I (46), and a toothed wheel II (52) is fixedly connected to each belt shaft (51), and each toothed wheel II (52) is driven by the corresponding toothed wheel I (46) through a toothed belt (53).

7. The petroleum pipeline valve according to claim 1, characterized in that: Each of the ring sleeves (23) is provided with two ring plates coupled with the inner wall and the outer wall of the inner ring (15), and each of the ring sleeves (23) is provided with a rubber pad.

8. The petroleum pipeline valve according to claim 1, characterized in that: One end of each of the spacing rods (19) is provided with a thread connected to a nut, and the middle part of the spacing rod (19) is sleeved with a spacing sleeve.

9. The petroleum pipeline valve according to claim 3, characterized in that: A rotating sealing ring is arranged between each adjusting sleeve (33) and the corresponding outer tube (31).

10. The petroleum pipeline valve according to claim 5, characterized in that: Each transmission rod (45) is symmetrically provided with a transmission plane.

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