CN209484155U - A new type of top pressure plugging tool for oil pipeline - Google Patents

Abstract

The utility model provides a new type of top pressure plugging tool for oil pipelines, which includes an upper clamp, a lower clamp, an air bag, a ring-shaped welded steel plate and a clamp connector. Both the upper clamp and the lower clamp are of U-shaped groove structure. The two free ends of the first free end and the two free ends of the lower fixture are respectively connected flexibly by the fixture connector, the air bag is located in the U-shaped groove of the upper fixture, and the lower fixture is composed of two arc-shaped walls, and the two arc-shaped walls are located in the U-shaped groove The end at the top of the arc is locked by locking bolts, the annular welded steel plate is clamped in the U-shaped groove of the lower fixture, and the inner ring of the annular welded steel plate is coated with a sealing agent for sealing the leakage of the oil pipeline , after the air bag is inflated, it presses against the ring-shaped welded steel plate, so that the ring-shaped welded steel plate and the leak of the oil pipeline are closely attached and welded. The utility model has the advantages of: 1. easy installation; 2. good safety; 3. high recycling rate; 4. suitable for operations with different pipe diameters;

Description

A new type of top pressure plugging tool for oil pipeline

technical field

The utility model belongs to the technical field of oil pipeline plugging, and more specifically relates to a novel top pressure plugging tool for oil pipelines.

Background technique

Oil pipeline leakage is one of the problems that affect the normal production and transportation of the petroleum industry. The leakage of crude oil will cause major problems such as resource loss, accidents and disasters, and environmental pollution. Severe leakage will also cause production to fail to run normally, forced to stop for emergency repairs, fire and explosion accidents, resulting in irreparable environmental pollution, all of which will bring huge economic losses and bring serious consequences to production.

At present, the commonly used technical devices for oil pipeline plugging include fast binding plugging device, clamp plugging device, cork plugging device, injection type sealing device and so on. Due to the high pressure at the leak location, these leak plugging devices have problems such as difficult positioning, complicated operation, and poor sealing performance during the plugging process. At the same time, the existing pipeline plugging devices have a limited scope of application, and it is difficult to effectively seal oil pipelines with different diameters, thereby failing to meet the needs of safe operation of oil pipelines. Therefore, it is of great engineering significance to develop a pressure leak plugging device suitable for different pipe diameters.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a new type of top pressure plugging tool for oil pipelines to solve the problems of difficult positioning, complicated operation, poor sealing performance and inability to adapt to different pipe diameters in existing plugging devices. Oil pipeline problems.

The utility model provides a new type of top pressure plugging tool for oil pipelines, including an upper clamp, a lower clamp, an air bag, an annular welded steel plate and a clamp connector. Both the upper clamp and the lower clamp are of U-shaped groove structure. The free end and the two free ends of the lower fixture are respectively flexibly connected by the fixture connector, the air bag is located in the U-shaped groove of the upper fixture, and the lower fixture is composed of two arc-shaped walls, and the two arc-shaped walls are located in the U-shaped groove. The end at the arc top is locked by locking bolts, the annular welded steel plate is clamped in the U-shaped groove of the lower fixture, and the inner ring of the annular welded steel plate is coated with a sealing agent for sealing the leakage of the oil pipeline. After the airbag is inflated, it presses against the ring-shaped welded steel plate, so that the ring-shaped welded steel plate and the leak of the oil pipeline are closely attached and welded; the clamp connector includes two connecting bolts and a spring, and the two connecting bolts are connected to the upper clamp respectively. 1. The end of the free end of the lower clamp is threaded, and the spring is connected between the two connecting bolts.

In addition, a preferred structure is that the airbag is provided with an airbag quick inflation plug.

In addition, it is preferable that the height of the annular welded steel plate is higher than that of the lower jig.

Furthermore, the preferred structure is that the screw rod of one of the connecting bolts is screwed into the end of the free end of the upper clamp and locked by a nut, and the screw rod of the other connecting bolt is screwed into the end of the free end of the lower clamp and locked by a nut, The heads of the two connecting bolts are welded with hooks, and the two ends of the spring are hooked on the two hooks.

In addition, the preferred structure is that the screw rod of one of the connecting bolts is screwed into the end of the free end of the upper clamp and locked by a nut, the screw rod of the other connecting bolt is screwed into the end of the free end of the lower clamp and locked by a nut, and the spring It is a concave spring, and the two ends of the spring are sleeved on the heads of the two connecting bolts.

Furthermore, the preferred structure is that an arc-shaped buffer groove is provided on the inner wall of the upper fixture opposite to the annular welded steel plate, and the edge of the airbag is closely attached to the buffer groove.

Compared with the prior art, the new top pressure plugging tool for the oil pipeline provided by the utility model can achieve the following technical effects:

1. The lower fixture is composed of two arc-shaped walls to form a U-shaped groove structure. The arc top is locked by bolts. By adjusting the tightness of the bolts, the groove diameter of the U-shaped groove can be adjusted, so that the lower fixture can clamp different diameters. Circular welded steel plates are used to seal oil pipelines of different diameters.

2. The inflated air bag exerts pressure on the ring-shaped welded steel plate, so that the ring-shaped welded steel plate and the leak of the oil pipeline are completely attached;

3. The buffer groove can buffer the contact position between the air bag and the upper fixture.

Description of drawings

By referring to the following description combined with the accompanying drawings and the content of the claims, and with a more comprehensive understanding of the utility model, other objectives and results of the utility model will be more clear and easy to understand.

In the attached picture:

Fig. 1 is a three-dimensional structure diagram of a new pressure plugging tool for an oil pipeline according to Embodiment 1 of the present utility model;

Fig. 2 is a plane structure diagram of a new pressure plugging tool for an oil pipeline according to Embodiment 1 of the present utility model.

The reference signs include: 1-airbag, 101-airbag quick inflation plug, 2-upper clamp, 201-buffer groove, 3-lower clamp, 301-arc arm, 4-locking bolt, 5-ring Welded steel plate, 6-oil pipeline, 7-fixture connector, 701-first connecting bolt, 702-second connecting bolt, 703-spring.

The same reference numerals indicate similar or corresponding features or functions throughout the drawings.

Detailed ways

Specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Embodiment one

Fig. 1 and Fig. 2 respectively show the three-dimensional structure and the planar structure of the new pressure leakage plugging tool for the oil pipeline according to the first embodiment of the utility model.

As shown in Figure 1 and Figure 2 together, the new top pressure plugging tool for oil pipelines provided by Embodiment 1 of the utility model includes: an air bag 1, an upper clamp 2, a lower clamp 3, a locking bolt 4, and an annular welded steel plate 5 and clamp connector 7, the upper clamp 2 and the lower clamp 3 are U-shaped groove structures, and the two free ends of the upper clamp 2 and the two free ends of the lower clamp 3 are respectively connected flexibly by a clamp connector 7, The fixture connector 7 plays the role of flexibly connecting the upper fixture 2 and the lower fixture 3. The airbag 1 is located in the U-shaped groove of the upper fixture 2, and the lower fixture 3 has a U-shaped groove structure composed of two arc-shaped walls 301. The two arc-shaped The end of the wall 301 located at the arc top of the U-shaped groove is provided with a threaded hole, and the two arc-shaped walls 301 are locked by the locking bolt 4. The annular welded steel plate 5 is used to penetrate the oil pipeline 6, and the oil pipeline 6 The leakage place stays in contact with the ring-shaped welded steel plate 5, and the ring-shaped welded steel plate 5 is clamped in the U-shaped groove of the lower fixture 3, and the inner ring of the ring-shaped welded steel plate 5 is coated with a sealing agent. The plugging agent can block the leakage of the oil pipeline 6; by adjusting the tightness of the locking bolt 4, the groove diameter of the U-shaped groove of the lower clamp 3 can be adjusted, so that the lower clamp 2 can clamp rings with different diameters. Shape welded steel plate 5, so that the oil pipeline 6 of different pipe diameter is blocked.

The airbag 1 is provided with an airbag quick inflation plug 101, and the airbag 1 is inflated through the airbag quick inflation plug 101, and the airbag 1 gradually inflates and presses against the annular welded steel plate 5, thereby exerting pressure on the annular welded steel plate 5 to make the annular welded The steel plate 5 is closely attached to the leak of the oil pipeline 6 to maximize the sealing effect of the sealing agent.

In order to buffer the contact between the airbag 1 and the upper fixture 2, an arc-shaped buffer groove 201 is provided on the inner wall of the upper fixture 2 at a position opposite to the annular welded steel plate 5. After the airbag 1 is inflated, the edge and the The buffer groove 201 fits closely.

The clamp connector 7 includes a first connecting bolt 701, a second connecting bolt 702 and a spring 703. The screw rod of the first connecting bolt 701 is screwed into the end of the free end of the upper clamp 2 and locked by a nut. The screw rod of the second connecting bolt 702 Screw in the end of the free end of the lower clamp 3 and lock it by a nut. The first connecting bolt 701 and the head of the second connecting bolt 702 are welded with a hook (not shown), and the two ends of the spring 703 are hooked on two on the hook.

After the leakage of the oil pipeline 6 is blocked, there is no need to disassemble the annular welded steel plate 5. The annular welded steel plate 5 is equivalent to the outer skin of the oil pipeline 6. In order to ensure the connection strength, the annular welded steel plate 5 and the oil pipeline 6 need to be welded together , in order to facilitate welding, the height of the annular welded steel plate 5 is higher than that of the lower fixture 2 .

Embodiment two

The difference between the second embodiment and the first embodiment is only that the structure of the clamp connector is different. The other structures of the new top pressure plugging tool for the oil pipeline provided by the second embodiment are the same as those of the first embodiment, and the clamp connector of the second embodiment is the same. It includes a first connecting bolt, a second connecting bolt and a spring, the screw rod of the first connecting bolt is screwed into the end of the free end of the upper clamp and locked by a nut, the screw rod of the second connecting bolt is screwed into the end of the free end of the lower clamp and Locked by the nut, the spring is a concave spring, that is, the diameter of the two ends of the spring is larger than the diameter of the middle section, and the two ends of the spring are respectively set on the heads of the first connecting bolt and the second connecting bolt. The heads of the second connecting bolts are respectively clamped on the springs to ensure the connection strength.

The above are only specific embodiments of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present utility model. All should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (6)

1. A novel top pressure plugging tool for an oil pipeline, characterized in that it comprises an upper clamp, a lower clamp, an air bag, an annular welded steel plate and a clamp connector, and both the upper clamp and the lower clamp are U-shaped grooves structure, the two free ends of the upper clamp and the two free ends of the lower clamp are respectively flexibly connected by clamp connectors, the airbag is located in the U-shaped groove of the upper clamp, and the lower clamp is formed by Two arc-shaped walls are combined, and the ends of the two arc-shaped walls located at the arc top of the U-shaped groove are locked by locking bolts, and the annular welded steel plate is clamped in the U-shaped groove of the lower fixture. The inner ring of the annular welded steel plate is coated with a plugging agent for sealing the leakage of the oil pipeline, and the air bag presses against the annular welded steel plate after inflated, so that the annular welded steel plate and the The leakage of the oil pipeline is tightly fitted and welded; The clamp connector includes two connecting bolts and a spring, the two connecting bolts are screwed to the free ends of the upper clamp and the lower clamp respectively, and the spring is connected between the two connecting bolts. 2 . The novel top pressure leakage plugging tool for oil pipelines according to claim 1 , wherein an airbag quick inflation plug is provided on the airbag. 3 . 3 . The novel top pressure plugging tool for oil pipelines according to claim 1 , wherein the height of the annular welded steel plate is higher than that of the lower clamp. 4 . 4. The new top pressure plugging tool for oil pipelines as claimed in claim 1, wherein the screw rod of one connecting bolt is screwed into the end of the free end of the upper clamp and locked by a nut, and the other connecting bolt The screw rod is screwed into the end of the free end of the lower clamp and locked by a nut. The heads of the two connecting bolts are welded with hooks, and the two ends of the spring are hooked on the two hooks. 5. The new top pressure plugging tool for oil pipelines as claimed in claim 1, wherein the screw rod of one of the connecting bolts is screwed into the end of the free end of the upper clamp and locked by a nut, and the other connecting bolt The screw rod is screwed into the end of the free end of the lower clamp and locked by a nut. The spring is a concave spring, and the two ends of the spring are sleeved on the heads of the two connecting bolts. 6. The new top pressure plugging tool for oil pipelines as claimed in claim 1, characterized in that an arc-shaped buffer groove is provided on the inner wall of the upper clamp opposite to the annular welded steel plate, and the air bag The edge fits closely with the buffer groove.