Leak-proof type oil testing pipeline connection sealing assembly

Abstract

The utility model discloses a leakproof type oil testing pipeline connecting and sealing assembly, which relates to the technical field of pipeline connecting and sealing, and comprises a first connecting and sealing element, the first connecting and sealing element consists of a sleeving pipeline, a first rubber sealing ring and a first rubber convex ring, the first rubber sealing ring is fixedly arranged on the inner wall of the sleeving pipeline, and the first rubber convex ring is fixedly arranged on the sleeving pipeline. The two first rubber protruding rings are fixedly installed at the two ends of the first rubber sealing ring correspondingly, the two pipeline bodies are sleeved with the sleeving pipeline, and the connecting sealing assembly is composed of a first connecting sealing piece, a second connecting sealing piece and an inner threaded barrel. The first connecting sealing piece and the second connecting sealing piece can conduct double-layer sealing on the connecting position of the two sections of pipeline bodies, the inner threaded barrel can be further connected in a fastened mode, sealing reliability is ensured, leakage of harmful substances such as petroleum and natural gas is effectively prevented finally, environmental pollution and potential safety hazards are reduced, and meanwhile resource waste and economic losses are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection sealing technical field, especially in a kind of anti-leakage type oil testing pipeline connection sealing assembly. BACKGROUND

[0002] Oil testing pipeline is the temporary pipeline system for testing the productivity of new drilling or workover well, fluid properties and formation parameters in petroleum industry, and its safety and reliability are directly related to production efficiency and environmental protection. The sealing of oil testing pipeline connection is particularly important to prevent leakage, because: first, oil and gas are flammable and explosive, and once leakage may cause fire, explosion and other serious accidents, threatening personnel safety and equipment integrity;Second, leakage will lead to resource waste and economic loss, especially in high-pressure environment, small leakage may also cause great loss in long-term operation;In addition, harmful substances (such as hydrogen sulfide) in oil leakage will pollute soil, water and atmosphere, destroy the ecological environment, and even affect public health. Poor sealing may also accelerate pipeline corrosion, shorten service life and increase maintenance cost. Therefore, the present application provides an anti-leakage type oil testing pipeline connection sealing assembly. SUMMARY

[0003] The main purpose of the utility model is to provide an anti-leakage type oil testing pipeline connection sealing assembly, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0005] An anti-leakage type oil testing pipeline connection sealing assembly, comprising a first connection sealing member, the first connection sealing member is composed of a sleeved pipeline, a first rubber sealing ring and a first rubber convex ring, the first rubber sealing ring is fixedly installed on the inner wall of the sleeved pipeline, the first rubber convex ring has two and is fixedly installed at both ends of the first rubber sealing ring, the sleeved pipeline is sleeved on two pipeline bodies, two second connection sealing members are fixedly installed on the two pipeline bodies and at both sides of the sleeved pipeline, the second connection sealing member is composed of a fixed base ring, a connecting convex ring, a second rubber sealing ring and a second rubber convex ring, the connecting convex ring is fixedly installed on the outer wall of the fixed base ring, the second rubber sealing ring is fixedly installed on the inner end of the fixed base ring, the second rubber convex ring is fixedly installed on the inner end of the second rubber sealing ring, and an internal thread cylinder is rotatably installed on the fixed base ring, and the internal thread cylinder is installed on the sleeved pipeline.

[0006] Preferably, a first annular sealing groove is formed in one end of the pipeline body.

[0007] Preferably, the first rubber sealing ring on the first connection sealing member is located between the two pipeline bodies, and the first rubber convex ring is embedded in the first annular sealing groove.

[0008] Preferably, the outer wall of the sleeved pipe on the first connecting sealing piece is provided with connecting threads on both sides, and two second annular sealing grooves are symmetrically formed at both ends of the sleeved pipe.

[0009] Preferably, the fixed base ring on the second connecting sealing piece is fixedly sleeved on the pipe body, and the second rubber convex ring is embedded in the second annular sealing groove.

[0010] Preferably, the inner threaded cylinder is rotatably sleeved on the fixed base ring and the second rubber sealing ring, an annular connecting groove is formed in the inner wall of the inner threaded cylinder, the inner threaded cylinder is rotatably installed on the connecting convex ring through the annular connecting groove, and the inner threaded cylinder is installed on the connecting threads arranged on the outer wall of the sleeved pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting the connecting sealing assembly composed of the first connecting sealing piece, the second connecting sealing piece and the inner threaded cylinder, the first connecting sealing piece and the second connecting sealing piece can double-seal the connecting position of the two pipe bodies, the inner threaded cylinder can further fasten the connection, the reliability of the sealing is ensured, the leakage of harmful substances such as petroleum and natural gas is effectively prevented, environmental pollution and safety hazards are reduced, resource waste and economic losses are reduced, the first rubber sealing ring and the second rubber sealing ring are respectively located on the inner and outer sides of the connecting position of the pipe body, a double-sealing barrier is formed, fluid leakage is effectively prevented, and the utility model is especially suitable for oil testing pipes in high-pressure environments; the first rubber convex ring and the second rubber convex ring are respectively embedded in the first annular sealing groove and the second annular sealing groove, the leakage path is further blocked through close cooperation, and the sealing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view of the pipe body and the first rubber sealing ring and the first rubber convex ring of the utility model after being split;

[0015] Figure 3 It is a structure schematic view of the first connecting sealing piece of the utility model;

[0016] Figure 4 It is a position relation structure schematic view of the inner threaded cylinder of the utility model after being split and the second connecting sealing piece.

[0017] In the figure: 1, the first connecting sealing piece; 2, the pipeline main body; 3, the second connecting sealing piece; 4, the inner threaded cylinder; 5, the first annular sealing groove; 6, the sleeving pipeline; 7, the first rubber sealing ring; 8, the first rubber convex ring; 9, the connecting thread; 10, the fixed base ring; 11, the connecting convex ring; 12, the second rubber sealing ring; 13, the second rubber convex ring; 14, the second annular sealing groove; 15, the annular connecting groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in the figure, a kind of anti-leakage type oil testing pipeline connecting sealing assembly, including first connecting sealing piece 1, first connecting sealing piece 1 is by sleeving pipeline 6, first rubber sealing ring 7 and first rubber convex ring 8, first rubber sealing ring 7 is fixedly installed on the inner wall of sleeving pipeline 6, first rubber convex ring 8 has two and is fixedly installed at the two ends of first rubber sealing ring 7, sleeving pipeline 6 is sleeved on two pipeline main bodies 2, two pipeline main bodies 2 and in the two sides of sleeving pipeline 6, two second connecting sealing pieces 3 are fixedly installed, second connecting sealing piece 3 is by fixed base ring 10, connecting convex ring 11, second rubber sealing ring 12 and second rubber convex ring 13, connecting convex ring 11 is fixedly installed on the outer wall of fixed base ring 10, second rubber sealing ring 12 is fixedly installed on the inner end of fixed base ring 10, second rubber convex ring 13 is fixedly installed on the inner end of second rubber sealing ring 12, fixed base ring 10 is rotatably installed with inner threaded cylinder 4, inner threaded cylinder 4 is installed on sleeving pipeline 6 simultaneously, when installing, first connecting sealing piece 1 on sleeving pipeline 6 is sleeved on two sections of pipeline main body 2, so that two sections of pipeline main body 2 are located at the two sides of first rubber sealing ring 7, then inner threaded cylinder 4 is rotatably installed on sleeving pipeline 6, finally, sleeving pipeline 6 and second connecting sealing piece 3 contact can be.

[0020] Specifically, one end of the pipeline body 2 is provided with a first annular sealing groove 5, the first rubber sealing ring 7 on the first connecting sealing element 1 is located between the two pipeline bodies 2, the first rubber convex ring 8 is embedded in the first annular sealing groove 5, the outer wall of the sleeving pipeline 6 on the first connecting sealing element 1 is provided with connecting threads 9 on both sides, two second annular sealing grooves 14 are symmetrically provided at both ends of the sleeving pipeline 6, the fixed base ring 10 on the second connecting sealing element 3 is fixedly sleeved on the pipeline body 2, the second rubber convex ring 13 is embedded in the second annular sealing groove 14, the inner threaded cylinder 4 is rotatably sleeved on the fixed base ring 10 and the second rubber sealing ring 12, the inner wall of the inner threaded cylinder 4 is provided with an annular connecting groove 15, the inner threaded cylinder 4 is rotatably installed on the connecting convex ring 11 through the annular connecting groove 15, and the inner threaded cylinder 4 is installed at the connecting threads 9 provided on the outer wall of the sleeving pipeline 6. When the first connecting sealing element 1 is installed on the two pipeline bodies 2, the first rubber convex ring 8 needs to be embedded in the first annular sealing groove 5, when the inner threaded cylinder 4 is installed at the connecting threads 9 of the sleeving pipeline 6, the inner threaded cylinder 4 needs to be rotated on the second connecting sealing element 3, so that the inner threaded cylinder 4 is matched with the connecting threads 9, and finally the sleeving pipeline 6 is sleeved on the second rubber convex ring 13 through the second annular sealing groove 14.

[0021] Finally, by arranging the connecting sealing assembly composed of the first connecting sealing element 1, the second connecting sealing element 3 and the inner threaded cylinder 4, the first connecting sealing element 1 and the second connecting sealing element 3 can realize double-layer sealing at the connecting position of the two pipeline bodies 2, and the inner threaded cylinder 4 can further fasten the connection, thereby ensuring the reliability of the sealing, effectively preventing the leakage of harmful substances such as petroleum and natural gas, reducing environmental pollution and safety hazards, and simultaneously reducing resource waste and economic losses. The first rubber sealing ring 7 and the second rubber sealing ring 12 are respectively located on the inner and outer sides of the connecting position of the pipeline body 2, forming a double-layer sealing barrier, effectively preventing fluid leakage, and being especially suitable for oil testing pipelines in high-pressure environments. The first rubber convex ring 8 and the second rubber convex ring 13 are respectively embedded in the first annular sealing groove 5 and the second annular sealing groove 14, further blocking the leakage path through close cooperation, and improving the sealing effect.

[0022] Obviously, the above embodiments are only examples for clearly illustrating, but not limiting the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A leak-proof oil testing pipeline connection sealing assembly, characterized in that: The system includes a first connecting seal (1), which consists of a sleeve pipe (6), a first rubber sealing ring (7), and a first rubber convex ring (8). The first rubber sealing ring (7) is fixedly installed on the inner wall of the sleeve pipe (6). There are two first rubber convex rings (8), which are respectively fixedly installed at both ends of the first rubber sealing ring (7). The sleeve pipe (6) is fitted onto two pipe bodies (2). Two second connecting seals (3) are fixedly installed on the two pipe bodies (2) and on both sides of the sleeve pipe (6). The two connecting seals (3) consist of a fixed base ring (10), a connecting convex ring (11), a second rubber sealing ring (12), and a second rubber convex ring (13). The connecting convex ring (11) is fixedly installed on the outer wall of the fixed base ring (10), the second rubber sealing ring (12) is fixedly installed on the inner end of the fixed base ring (10), and the second rubber convex ring (13) is fixedly installed on the inner end of the second rubber sealing ring (12). An internal threaded cylinder (4) is rotatably installed on the fixed base ring (10), and the internal threaded cylinder (4) is also installed on the sleeve pipe (6).

2. The leak-proof oil test pipeline connection sealing assembly according to claim 1, characterized in that: The pipe body (2) has a first annular sealing groove (5) at one end.

3. The leak-proof oil test pipeline connection sealing assembly according to claim 2, characterized in that: The first rubber sealing ring (7) on the first connecting seal (1) is located between the two pipe bodies (2), and the first rubber convex ring (8) is embedded in the first annular sealing groove (5).

4. The leak-proof oil test pipeline connection sealing assembly according to claim 3, characterized in that: The outer walls of the sleeve pipe (6) on the first connecting seal (1) are provided with connecting threads (9), and two second annular sealing grooves (14) are symmetrically opened at both ends of the sleeve pipe (6).

5. The leak-proof oil test pipeline connection sealing assembly according to claim 4, characterized in that: The fixing base ring (10) of the second connecting seal (3) is fixedly sleeved on the pipe body (2), and the second rubber convex ring (13) is embedded in the second annular sealing groove (14).

6. The leak-proof oil testing pipeline connection sealing assembly according to claim 5, characterized in that: The internal threaded cylinder (4) is rotatably sleeved on the fixed base ring (10) and the second rubber sealing ring (12). An annular connecting groove (15) is provided on the inner wall of the internal threaded cylinder (4). The internal threaded cylinder (4) is rotatably installed on the connecting protrusion ring (11) through the annular connecting groove (15). The internal threaded cylinder (4) is also installed at the connecting thread (9) provided on the outer wall of the sleeve pipe (6).

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