A natural gas pipeline interface seal

Abstract

The utility model discloses a natural gas pipeline interface sealing device, including first pipeline and second pipeline, and the first pipeline end is equipped with first connecting piece, and the second pipeline end is equipped with second connecting piece, and first connecting piece and second connecting piece are clamped and are connected, still include the clamp, and the inside of two clamps is equipped with the clamping groove, and first connecting piece and second connecting piece are clamped in the clamping groove, the both sides of clamping groove are equipped with the resistance pressure piece, and the resistance pressure piece is pressed tightly to first connecting piece and second connecting piece side respectively, and the both sides of two clamps are equipped with the connecting block, and the connecting block is fixedly connected through the fastening bolt and the nut between, and one clamp outside is equipped with fixed block, and fixed block is inserted and is connected with the support frame, and the height of the support foot of support frame is adjustable, the utility model discloses through the resistance pressure piece and makes the clamping of first connecting piece and second connecting piece more closely, and the sealing component at the interface of support frame plays the supporting effect, and has improved the sealing property of first pipeline and second pipeline interface.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline sealing technology, and in particular relates to a natural gas pipeline interface sealing device. Background Technology

[0002] Natural gas is one of the safest fuels. It contains no carbon monoxide and is lighter than air. If it leaks, it immediately diffuses upwards, making it less likely to accumulate and form an explosive gas. Its safety is relatively high compared to other fuels. Using natural gas as an energy source can reduce the consumption of coal and oil, thus significantly improving environmental pollution. Natural gas pipelines are the core carrier for long-distance natural gas transportation, and the sealing performance of pipeline joints directly affects the safety and reliability of the entire transmission system. Traditional pipeline connections often use flange-gasket mechanical seal structures, relying on bolt preload to compress asbestos, rubber, or metal spiral wound gaskets to achieve a seal. Aging, deformation, and damage to the gaskets can lead to seal failure, causing natural gas leaks and potentially resulting in safety accidents. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a natural gas pipeline interface sealing device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A natural gas pipeline interface sealing device includes a first pipeline and a second pipeline. The first pipeline is provided with a first connector at its end, and the second pipeline is provided with a second connector at its end. The first connector and the second connector are snap-fitted together.

[0006] It also includes clamps, with slots on the inner sides of the two clamps, and the first connector and the second connector are engaged in the slots; the upper and lower sides of the slots are provided with pressing members, which press against the sides of the first connector and the second connector respectively.

[0007] Connecting blocks are provided on both sides of the two clamps, and the connecting blocks are fixedly connected by fastening bolts and nuts;

[0008] One of the clamps has a fixing block on its outer side, and the fixing block is plugged into the support frame;

[0009] The height of the support legs of the support frame is adjustable.

[0010] Furthermore, a spring washer is fitted onto the fastening bolt, and the spring washer is located between the fastening bolt and the connecting block.

[0011] Furthermore, the first connector has a first sealing block on the side near the second connector, and the second connector has a corresponding first sealing groove, with the first sealing block inserted into the first sealing groove;

[0012] The second connector has a second sealing block on the side near the first connector, and the first connector has a corresponding second sealing groove, into which the second sealing block is inserted.

[0013] Furthermore, both the first and second sealing grooves are provided with sealing gaskets, which are made of silicone rubber.

[0014] Furthermore, the card slot is provided with first sliding grooves on both the upper and lower sides;

[0015] The pressing component includes a spring and a pressing block. The spring is disposed in the first sliding groove, and the other end of the spring is connected to the pressing block. One end of the pressing block is slidably disposed in the first sliding groove, and the side of the pressing block abuts against the side of the corresponding first connecting member or second connecting member.

[0016] Furthermore, the clamping block has an inclined surface on the side closest to the center of the clamp.

[0017] Furthermore, a sealing gasket is provided on the inner side of the card slot, and the sealing gasket is made of silicone.

[0018] Furthermore, the support frame is provided with a fixing groove, and the fixing block is inserted into the fixing groove;

[0019] The support foot includes a first support rod and a second support rod. The bottom of the first support rod is provided with a movable groove, and one end of the second support rod is slidably disposed in the movable groove.

[0020] The bottom of the first support rod is provided with an adjusting sleeve, and the adjusting sleeve is provided with threads.

[0021] The second support rod has threads on its side, and the second support rod is threadedly connected to the adjusting sleeve.

[0022] This utility model has the following beneficial effects:

[0023] 1. After the first and second connectors are snapped together, the outer sides are covered by clamps, and the pressing parts in the slots press against the sides of the first and second connectors, making the snapping of the first and second connectors tighter and improving the sealing performance of the interface between the first and second pipes. In addition, the support frame supports the seal at the interface between the first and second pipes, preventing uneven stress at the interface caused by gravity torsion of the first and second pipes, which could lead to interface breakage and natural gas leakage, and thus better enhance the sealing effect at the pipe interface.

[0024] 2. Through the cooperation of the first sealing block and the first sealing groove, and the cooperation of the second sealing block and the second sealing groove, the contact between the first connector and the second connector is made tighter, and the natural gas would have to travel a longer route if it were to leak, thus reducing the probability of natural gas leakage. Furthermore, the silicone rubber gasket further enhances the sealing performance at the interface. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a front structural diagram of the present invention;

[0028] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-section at point AA;

[0029] Figure 4 This is a schematic diagram of the internal structure of the first and second connecting members of this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of the clamp and pressing component of this utility model;

[0031] Figure 6 This is a three-dimensional structural diagram of the support frame of this utility model.

[0032] Among them: 1. First pipeline;

[0033] 2. Second pipeline;

[0034] 3. First connecting member; 31. First sealing block; 32. Second sealing groove;

[0035] 4. Second connecting piece; 41. First sealing groove; 42. Second sealing block;

[0036] 5. Clamp; 51. Slot; 52. Connecting block; 53. Fastening bolt; 54. Nut; 55. Spring washer; 56. Fixing block;

[0037] 6. Pressing element; 61. First slide groove; 62. Spring; 63. Clamping block;

[0038] 7. Support frame; 71. First support rod; 72. Second support rod; 73. Adjusting sleeve; 74. Fixing groove. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] like Figure 1-6As shown, a natural gas pipeline interface sealing device includes a first pipeline 1 and a second pipeline 2. The first pipeline 1 has a first connector 3 at one end, and the second pipeline 2 has a second connector 4 at one end. The first connector 3 and the second connector 4 are snap-fitted together. It also includes clamps 5, with grooves 51 on the inner sides of the clamps 5. The first connector 3 and the second connector 4 are snapped into the grooves 51. Pressing members 6 are provided on both the upper and lower sides of the grooves 51, pressing against the sides of the first connector 3 and the second connector 4 respectively, making the connection between the first connector 3 and the second connector 4 tighter. Connecting blocks 52 are provided on both sides of the clamps 5, and the connecting blocks 52 are fixedly connected by fastening bolts 53 and nuts 54. A spring washer 55 is fitted on the fastening bolt 53, and the spring washer 55 is located between the fastening bolt 53 and the connecting block 52. The spring washer 55 provides pre-tightening force for the bolt connection through elastic deformation, thereby improving the connection between the two clamps 5. For tightness, one of the clamps 5 has a fixing block 56 on its outer side, which is inserted into the support frame 7; the support frame 7 has a fixing groove 74, in which the fixing block 56 is inserted; the height of the support feet of the support frame 7 is adjustable, and the support feet are in contact with the ground in the pipeline laying project. After the first connector 3 and the second connector 4 are snapped together, the outer side is covered by the clamp 5, and the pressing part 6 in the groove 51 presses against the sides of the first connector 3 and the second connector 4, making the snapping of the first connector 3 and the second connector 4 tighter, improving the sealing of the interface between the first pipe 1 and the second pipe 2. In addition, the support frame 7 supports the seal at the interface between the first pipe 1 and the second pipe 2, preventing uneven stress at the interface caused by gravity torsion of the first pipe 1 and the second pipe 2, which could cause the interface to break and lead to natural gas leakage, thus better strengthening the sealing effect of the pipeline interface.

[0043] Furthermore, a first sealing block 31 is provided on the side of the first connector 3 near the second connector 4, and a corresponding first sealing groove 41 is provided on the second connector 4, with the first sealing block 31 inserted into the first sealing groove 41; a second sealing block 42 is provided on the side of the second connector 4 near the first connector 3, and a corresponding second sealing groove 32 is provided on the first connector 3, with the second sealing block 42 inserted into the second sealing groove 32. Both the first sealing groove 41 and the second sealing groove 32 are provided with sealing gaskets made of silicone rubber. A sealing gasket made of silicone is provided on the inner side of the slot 51. Through the cooperation of the first sealing block 31 with the first sealing groove 41 and the second sealing block 42 with the second sealing groove 32, the contact between the first connector 3 and the second connector 4 becomes tighter, and the route that natural gas needs to take to leak is longer, thus reducing the probability of natural gas leakage. In addition, the silicone rubber sealing gasket further enhances the sealing performance at the interface.

[0044] Furthermore, the upper and lower sides of the slot 51 are provided with first sliding grooves 61; the pressing member 6 includes a spring 62 and a pressing block 63. The spring 62 is disposed in the first sliding groove 61, and the other end of the spring 62 is connected to the pressing block 63. One end of the pressing block 63 is slidably disposed in the first sliding groove 61, and the other end is located in the slot 51. When the clamp 5 secures the outer sides of the first connecting member 3 and the second connecting member 4, the spring 62 is in a compressed state, pushing the side of the pressing block 63 against the first sliding groove 61. The sides of the corresponding first connector 3 or second connector 4 abut against each other and generate pressure. The side of the clamping block 63 near the center of the clamp 5 is set with an incline, that is, the clamping block 63 is set in a trapezoidal shape. When the clamp 5 tightens the first connector 3 and the second connector 4, the first connector 3 or the second connector 4 will generate pressure through the incline of the clamping block 63 when it enters the slot 51, so that the clamping block 63 slides into the first slide groove 61 without the need for manual pressing of the clamping block 63 into the first slide groove 61.

[0045] Furthermore, the support foot includes a first support rod 71 and a second support rod 72. The bottom of the first support rod 71 has a movable groove, and one end of the second support rod 72 is slidably disposed in the movable groove. An adjusting sleeve 73 is rotatably disposed at the bottom of the first support rod 71, and the adjusting sleeve 73 has threads inside. The side of the second support rod 72 has threads, and the second support rod 72 is threadedly connected to the adjusting sleeve 73. By rotating the adjusting sleeve 73, the second support rod 72 can be moved in the movable groove, thereby adjusting the length of the support foot so that the second support rod 72 contacts the ground, providing better support for the pipe interface.

[0046] The working principle of this utility model is as follows: When the ends of the first pipe 1 and the second pipe 2 are connected, the sides of the first connecting piece 3 and the second connecting piece 4 are in contact. The first sealing block 31 is inserted into the first sealing groove 41, and the second sealing block 42 is inserted into the second sealing groove 32, thus completing the insertion connection between the first connecting piece 3 and the second connecting piece 4. Then, the slots 51 of the two clamps 5 are fitted onto the outer sides of the first connecting piece 3 and the second connecting piece 4. The compressed spring 62 pushes the pressing block 63 to abut against the side of the first connecting piece 3 or the second connecting piece 4 and generate pressure. Then, the clamps 5 are fixed by the fastening bolts 53, the spring washers 55 and the nuts 54, so that the fixing groove 74 of the connecting frame is inserted into the fixing block 56 of the clamp 5 located below. By rotating the adjusting sleeve 73, the second support rod 72 can be moved in the moving groove, thereby adjusting the length of the support foot so that the second support rod 72 contacts the ground, providing better support for the pipe interface.

[0047] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A natural gas pipeline interface sealing device comprising a first pipeline (1) and a second pipeline (2), characterized in that: The first pipe (1) is provided with a first connector (3) at its end, and the second pipe (2) is provided with a second connector (4) at its end. The first connector (3) and the second connector (4) are snap-fitted together. It also includes clamps (5), and the inner sides of the two clamps (5) are provided with slots (51), and the first connector (3) and the second connector (4) are engaged in the slots (51); the upper and lower sides of the slots (51) are provided with pressing members (6), and the pressing members (6) press against the sides of the first connector (3) and the second connector (4) respectively. Connecting blocks (52) are provided on both sides of the two clamps (5), and the connecting blocks (52) are fixedly connected to each other by fastening bolts (53) and nuts (54); One of the clamps (5) has a fixing block (56) on its outer side, and the fixing block (56) is plugged into the support frame (7); The height of the support legs of the support frame (7) is adjustable.

2. A natural gas pipeline interface sealing device according to claim 1, characterized in that: A spring washer (55) is fitted on the fastening bolt (53), and the spring washer (55) is located between the fastening bolt (53) and the connecting block (52).

3. The natural gas pipeline interface seal apparatus of claim 1, wherein: The first connector (3) has a first sealing block (31) on the side near the second connector (4), and the second connector (4) has a corresponding first sealing groove (41), and the first sealing block (31) is inserted into the first sealing groove (41). The second connector (4) has a second sealing block (42) on the side near the first connector (3), and the first connector (3) has a corresponding second sealing groove (32), and the second sealing block (42) is inserted into the second sealing groove (32).

4. The natural gas pipeline interface seal apparatus of claim 3, wherein: Both the first sealing groove (41) and the second sealing groove (32) are provided with sealing gaskets.

5. The natural gas pipeline interface seal apparatus of claim 1, wherein: The card slot (51) is provided with a first sliding groove (61) on both the upper and lower sides; The pressing member (6) includes a spring (62) and a pressing block (63). The spring (62) is disposed in the first groove (61). The other end of the spring (62) is connected to the pressing block (63). One end of the pressing block (63) is slidably disposed in the first groove (61), and the side of the pressing block (63) abuts against the side of the corresponding first connector (3) or second connector (4).

6. A natural gas pipeline interface sealing device according to claim 5, wherein: The clamping block (63) is inclined on the side near the center of the clamp (5).

7. The natural gas pipeline interface seal apparatus of claim 1, wherein: The support frame (7) is provided with a fixing groove (74), and the fixing block (56) is inserted into the fixing groove (74); The support foot includes a first support rod (71) and a second support rod (72). The bottom of the first support rod (71) is provided with a moving groove, and one end of the second support rod (72) is slidably disposed in the moving groove. The bottom of the first support rod (71) is rotatably provided with an adjusting sleeve (73), and the adjusting sleeve (73) is provided with a thread; The second support rod (72) has threads on its side, and the second support rod (72) is threadedly connected to the adjusting sleeve (73).

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