Pressure tapping device for pipeline

Abstract

The utility model discloses a pressure tapping device for a pipeline, and relates to the technical field of tapping devices. The trepanning device comprises a first branch pipe and a second branch pipe, wherein one end of the first branch pipe is connected to the side wall of the trepanning pipeline; the supporting pipe is connected to the other end of the first branch pipe; the drill rod is in threaded connection with the interior of the supporting pipe; the first valve is connected to the side wall of the supporting pipe; one end of the second branch pipe is connected to the side wall of the supporting pipe; the clamping piece is connected with the other end of the second branch pipe; the filtering piece is detachably connected with the clamping piece; one end of the third branch pipe is connected with the filtering piece, and the other end is connected with the storage part. Chippings generated in the trepanning process flow to the filter part together with pressurized liquid, the pressurized liquid is filtered through the filter part, the pressure relief pipeline is prevented from being blocked, the chippings are prevented from remaining in the filter part, the liquid flows into the storage part and can be reused, and waste is avoided; and the filter part is detachably connected through the clamping part, so that the chips in the filter part are convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of hole opening devices, in particular to a pressure hole opening device for pipelines. Background Art

[0002] In actual production and life, it is sometimes necessary to drill holes in existing pipelines to install branch pipelines. The conventional practice is to empty the pipeline and release all the pressure before construction. This is not only time-consuming and labor-intensive, but also affects normal production and life. If the hole is drilled under pressure, the pressurized liquid or steam is easy to leak at the hole, which will cause harm to the workers and pose a major safety hazard.

[0003] In order to solve the above problems, the patent application number is: 201020138467.X, and the name is a pressure hole opener. It discloses that the pressure hole opener includes a support tube, one end of the support tube is a fixed end, and the other end is a drilling force end. At least the fixed end of the support tube is sealed and fixed with a flange. The side wall of the support tube is connected to a pressure relief pipe, and the pressure relief pipe is connected to a valve. A drill rod is coaxially installed in the support tube, and the rear end of the drill rod passes through the force end of the support tube and is sealed with the force end. A drill bit mounting hole is provided at the front end of the drill rod, and the drill rod is sealed with the support tube at the drilling force end, thereby preventing high-pressure medium from spraying out from the connection between the drill rod and the support tube and injuring the operator.

[0004] However, in the above solution, debris is generated during the drilling process, and blockage is likely to occur during the pressure relief process through the pressure relief pipe, and the debris is also mixed into the pressure relief medium. Utility Model Content

[0005] In order to solve the problems in the prior art, the utility model provides a pressure-opening device for a pipeline.

[0006] The hole opening device comprises:

[0007] A first branch pipe, one end of which is connected to the side wall of the perforated pipe;

[0008] A support pipe connected to the other end of the first branch pipe;

[0009] A drill rod, threadedly connected to the interior of the support tube;

[0010] a first valve connected to the side wall of the support tube;

[0011] A second branch pipe, one end of which is connected to the side wall of the support pipe;

[0012] A clamping member connected to the other end of the second branch pipe;

[0013] A filter element, detachably connected to the clamping element;

[0014] The third branch pipe has one end connected to the filter element and the other end connected to the storage part.

[0015] Furthermore, a second valve is connected to the side wall of the second branch pipe.

[0016] Further, the clamping member comprises: a first pipe, a second pipe and a third pipe connected in sequence at the end of the second branch pipe away from the support pipe;

[0017] The outer diameter of the third pipeline is greater than the outer diameter of the first pipeline, and the outer diameter of the first pipeline is greater than the outer diameter of the second pipeline;

[0018] The outer wall of the first pipe is slidably connected with a shaft sleeve, and the inner wall of the shaft sleeve is connected with an annular pushing block;

[0019] A plurality of through holes are provided on the side wall of the second pipe, and the through holes are all movably connected with limiting members;

[0020] An elastic member is sleeved on the outer wall of the second pipe, and the elastic member is located between the pushing block and the first pipe;

[0021] The filter element comprises: a fourth pipe and a filter pipe, the fourth pipe is connected to the filter pipe, and the filter pipe is connected to the third branch pipe;

[0022] An annular groove and an annular protrusion are provided on the outer wall of the fourth pipe;

[0023] The elastic member drives the pushing block to push the limiting member, so that a part of the limiting member is located in the annular groove, so that the fourth pipe is detachably connected to the first pipe, the second pipe and the third pipe.

[0024] Furthermore, the elastic member is a spring.

[0025] Furthermore, a receiving groove is provided on the inner wall of the through hole;

[0026] The position-limiting member comprises: a guide plate slidably connected in the receiving groove;

[0027] Two semicircular spheres are respectively connected to the opposite sides of the guide plate and are both located in the through hole.

[0028] Furthermore, the cross-sections of the annular groove and the annular protrusion are both trapezoidal.

[0029] Furthermore, a filter screen is connected inside the filter pipe.

[0030] Furthermore, the end of the filter pipe away from the fourth pipe is connected with a threaded pipe, and the threaded pipe is threadedly connected to the third branch pipe.

[0031] Furthermore, a sealing groove is provided on the inner wall of the first pipe, and a sealing ring is connected in the sealing groove.

[0032] The beneficial effects of the technical solution provided by the utility model are as follows: in the utility model, a support tube is connected to the position of the hole to be drilled in the drilling pipe through a first branch tube, a drill rod is arranged in the support tube, a clamping piece is connected to the side wall of the support tube through a second branch tube, a filter element is detachably connected through the clamping piece, and the filter element is connected to the storage part through a third branch tube, and debris generated during the drilling process flows to the filter element together with the pressurized liquid, and the pressurized liquid is filtered through the filter element to avoid blockage of the pressure relief pipeline, and the debris is retained in the filter element, and the liquid flows into the storage part and can be reused without causing waste; and the filter element can be detachably connected through the clamping piece, which facilitates the cleaning of debris inside the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a pressure-opening device for a pipeline provided by the utility model;

[0034] Figure 2 This is a schematic diagram of the connection between a clamping element and a filter element provided by the utility model;

[0035] Figure 3 This is a structural schematic diagram of a clamping piece provided by the utility model;

[0036] Figure 4 This is a structural schematic diagram of a clamping piece provided by the utility model;

[0037] Figure 5 It is a structural schematic diagram of a filter element provided by the utility model;

[0038] Figure 6 This is a schematic diagram of the internal structure of a clamping piece provided by the utility model;

[0039] Figure 7 It is a cross-sectional schematic diagram of a position limiting member provided by the utility model.

[0040] Figure numerals: 1-first branch pipe; 2-opening pipe; 3-support pipe; 4-drill rod; 5-first valve; 6-second branch pipe; 7-third branch pipe; 8-storage part; 9-second valve; 10-first pipe; 11-second pipe; 12-third pipe; 13-sleeve; 14-push block; 15-through hole; 16-elastic member; 17-fourth pipe; 18-filter pipe; 19-annular groove; 20-annular protrusion; 21-accommodating groove; 22-guide plate; 23-semicircular sphere; 24-filter screen; 25-threaded pipe; 26-sealing groove; 27-sealing ring; 28-fixing plate; 29-screw. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] It should be noted that in this embodiment, the directions or positional relationships indicated by "bottom", "top", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] It should also be noted that, in this embodiment, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] See also Figure 1-Figure 7A pressure-type opening device for a pipeline comprises: a first branch pipe 1, which is fixed on the side wall of the opening pipeline 2. The first branch pipe 1 can be welded to the position of the opening pipeline 2 to be opened, or can be connected to the position to be opened by clamping, and a sealing member is provided between them to ensure the sealing after the connection; the end of the first branch pipe 1 far away from the opening pipeline 2 is connected to a support pipe 3 through a flange, and the end of the support pipe 3 close to the first branch pipe 1 is connected to a first valve 5, and the first valve 5 can be a gate valve, a ball valve, an electric control valve, a gas control valve, etc.; the end of the support pipe 3 far away from the first branch pipe 1 is connected to a fixing plate 28, a threaded hole is provided on the fixing plate 28, a screw rod 29 is threadedly connected to the inner thread of the threaded hole, and one end of the screw rod 29 is located at The other end of the screw 29 is located outside the support tube 3 and inside the support tube 3, and the end located inside is fixedly connected to the drill rod 4, the drill rod 4 is coaxial with the screw 29, and a drill bit is fixed to the end of the drill rod 4 away from the screw 29. When drilling, the top pressure screw 29 provides an axial force to the drill rod 4, so that the drill bit cuts into the pipe wall; when the first valve 5 is closed, the first branch pipe 1 and the support tube 3 are isolated, and the drill rod 4 is located in the support tube 3. When drilling is required, the first valve 5 is opened and the drill rod 4 enters the first branch pipe 1 for drilling. When the drilling is completed, the drill rod 4 retreats into the support tube 3 and the first valve 5 is closed. The first valve 5 in the closed state can ensure the sealing of the formed through hole.

[0046] In addition, since a large amount of debris will be generated when the hole is opened, the generated debris will be retained inside the pipeline. For pipes with smaller diameters, it is very easy for the debris to accumulate and cause blockage. Moreover, after the pressure is released through the pressure relief pipe, the pressure relief medium is mixed with the debris. If the pressure relief medium needs to be recovered, the staff is required to filter it, which increases the labor intensity of the staff.

[0047] Therefore, in this embodiment, a second branch pipe 6 is welded on the side wall of the support tube 3, the second branch pipe 6 is connected to the support tube 3, and the second branch pipe 6 is located above the first valve 5. The end of the second branch pipe 6 away from the support tube 3 is detachably connected to a filter element through a clamping piece, and the filter element is connected to a storage part 8 through a third branch pipe 7. The storage part 8 can be a tank body with an inlet and an outlet, and valves are provided on the inlet and the outlet, and the third branch pipe 7 is connected to the inlet; the debris generated during the hole opening process flows to the filter element together with the pressurized liquid, and the pressurized liquid is filtered through the filter element to avoid clogging of the pipeline, and the debris is retained in the filter element, and the liquid flows into the storage part 8 and can be reused without causing waste.

[0048] Furthermore, the clamping part includes: a first pipe 10, a second pipe 11 and a third pipe 12. The second branch pipe 6 is connected to a second valve 9, and the second valve 9 can be a gate valve, a ball valve, an electric control valve, a gas control valve, etc.; one end of the first pipe 10 is welded to the end of the second branch pipe 6 away from the support pipe 3, one end of the second pipe 11 is welded to the other end of the first pipe 10, and one end of the third pipe 12 is welded to the other end of the second pipe 11. The outer diameter of the third pipe 12 is greater than the outer diameter of the first pipe 10, the outer diameter of the first pipe 10 is greater than the outer diameter of the second pipe 11, and the inner diameter of the first pipe 10 is the same as the inner diameter of the second pipe 11, so that an accommodating space is formed between the outer wall of the second pipe 11 and the outer wall of the first pipe 10 and the outer wall of the third pipe 12; the first pipe 10, the second pipe 11 and the third pipe 12 can also be an integrally formed structure.

[0049] A sleeve 13 is slidably connected to the outer wall of the first pipe 10, and an annular pushing block 14 is connected to the inner wall of the sleeve 13. The inner diameter of the sleeve 13 is the same as the outer diameter of the first pipe 10, and the inner diameter of the pushing block 14 is the same as the outer diameter of the second pipe 11. An elastic member 16 is sleeved on the second pipe 11, and the elastic member 16 can be a spring. The elastic member 16 is located in the accommodating space and between the pushing block 14 and the end of the first pipe 10; a plurality of through holes 15 are opened on the side wall of the second pipe 11, and the through holes 15 are all movably connected to limit members.

[0050] The limiting member includes: a guide plate 22, and a receiving groove 21 is opened on the inner wall corresponding to the through hole 15. The receiving groove 21 can be an annular receiving groove connected to the through hole 15. The guide plate 22 can be a circular guide plate 22, which is slidably connected in the receiving groove 21, and the thickness of the guide plate 22 is less than the thickness of the receiving groove 21; semicircular spheres 23 are connected to the opposite sides of the guide plate 22, and the two semicircular spheres 23 correspond to the two end positions of the through hole 15.

[0051] The filter element includes: a fourth pipe 17 and a filter pipe 18, one end of the fourth pipe 17 is welded to one end of the filter pipe 18, the filter pipe 18 is connected to the third branch pipe 7, and an annular groove 19 and an annular protrusion 20 are provided on the outer wall of the fourth pipe 17. When the fourth pipe 17 is docked with the first pipe 10, the second pipe 11 and the third pipe 12, the sleeve 13 is slid toward the direction of the support pipe 3, the push block 14 compresses the elastic member 16, and the fourth pipe 17 is inserted. The annular protrusion 20 of the fourth pipe 17 pushes the semicircular sphere 23 toward the inside of the second pipe 11 outward, so that the semicircular sphere The body 23 is completely located in the through hole 15, and the other semicircular sphere 23 is located outside the second pipe 11. The inner diameter of the filter pipe 18 is the same as the outer diameter of the third pipe 12. When the end of the filter pipe 18 abuts against the inner end of the third pipe 12, the position of the annular groove 19 just corresponds to the position of the through hole 15. At this time, the sleeve 13 is released, and the elastic member 16 extends, driving the sleeve 13 to slide in the direction of the third pipe 12. At this time, the push block 14 pushes the semicircular sphere 23 toward the outside of the second pipe 11, and pushes the other semicircular sphere 23 into the annular groove 19 to clamp the fourth pipe 17. At this time, the elastic member 16 can be in a semi-compressed state, the end of the sleeve 13 toward the third pipe 12 abuts against the outer end of the third pipe 12, and the push block 14 is located at the position of the through hole 15.

[0052] A filter screen 24 is connected to the filter pipe 18 to filter debris in the fluid into the filter pipe 18. After drilling is completed, the first valve 5 and the second valve 9 are closed, the sleeve 13 is slid in the direction of the support pipe 3, the push block 14 compresses the elastic member 16, and the fourth pipe 17 is pulled outward. The annular protrusion 20 pushes the semicircular sphere 23, and the inner semicircular sphere 23 is pushed into the through hole 15. Then the fourth pipe 17 can be pulled out, and the debris in the filter pipe 18 can be poured out and reconnected for reuse.

[0053] The end of the filter pipe 18 away from the fourth pipe 17 is connected with a threaded pipe 25 , and the threaded pipe 25 is threadedly connected to the third branch pipe 7 , so as to facilitate the connection and disassembly of the filter pipe 18 and the third branch pipe 7 .

[0054] Furthermore, an annular sealing groove 26 is formed on the inner wall of the first pipe 10 , and an annular sealing ring 27 is connected to the sealing groove 26 . The sealing ring 27 is in close contact with the outer wall of the fourth pipe 17 to enhance the sealing performance.

[0055] Furthermore, the cross-sections of the annular groove 19 and the annular protrusion 20 are both trapezoidal, so that they are smoother when contacting and pushing the semicircular sphere 23; secondly, the annular groove 19 and the annular protrusion 20 are arranged adjacent to each other and share a slope, and the annular groove 19 is located on the side close to the filter pipe 18. In addition, the side wall of the push block 14 facing the third pipe 12 is a slope structure, which is convenient for contacting and pushing the semicircular sphere 23.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-opening device for a pipeline, characterized in that: The hole opening device comprises: A first branch pipe (1), one end of which is connected to the side wall of the perforated pipe (2); A support pipe (3) connected to the other end of the first branch pipe (1); A drill rod (4) threadedly connected to the inside of the support tube (3); A first valve (5) connected to the side wall of the support tube (3); A second branch pipe (6), one end of which is connected to the side wall of the support pipe (3); A clamping piece connected to the other end of the second branch pipe (6); A filter element, detachably connected to the clamping element; The third branch pipe (7) has one end connected to the filter element and the other end connected to the storage portion (8).

2. The pressure tapping device for pipeline according to claim 1, characterized in that: A second valve (9) is connected to the side wall of the second branch pipe (6).

3. The pressure tapping device for pipeline according to claim 1, characterized in that: The clamping member comprises: a first pipe (10), a second pipe (11) and a third pipe (12) which are sequentially connected to the end of the second branch pipe (6) away from the support pipe (3); The outer diameter of the third pipe (12) is greater than the outer diameter of the first pipe (10), and the outer diameter of the first pipe (10) is greater than the outer diameter of the second pipe (11); The outer wall of the first pipe (10) is slidably connected to a shaft sleeve (13), and the inner wall of the shaft sleeve (13) is connected to an annular pushing block (14); A plurality of through holes (15) are provided on the side wall of the second pipe (11), and the through holes (15) are all movably connected to limit members; An elastic member (16) is sleeved on the outer wall of the second pipe (11), and the elastic member (16) is located between the pushing block (14) and the first pipe (10); The filter element comprises: a fourth pipe (17) and a filter pipe (18), the fourth pipe (17) and the filter pipe (18) are connected, and the filter pipe (18) is connected to the third branch pipe (7); An annular groove (19) and an annular protrusion (20) are provided on the outer wall of the fourth pipe (17); The elastic member (16) drives the pushing block (14) to push the limiting member, so that a portion of the limiting member is located in the annular groove (19), so that the fourth pipe (17) is detachably connected to the first pipe (10), the second pipe (11) and the third pipe (12).

4. The pressure tapping device for pipeline according to claim 3, characterized in that: The elastic member (16) is a spring.

5. The pressure tapping device for pipeline according to claim 3, characterized in that: A receiving groove (21) is provided on the inner wall of the through hole (15); The limiting member comprises: a guide plate (22) slidably connected in the containing groove (21); Two semicircular spheres (23) are respectively connected to opposite sides of the guide plate (22) and are both located in the through hole (15).

6. The pressure tapping device for pipeline according to claim 3, characterized in that: The cross sections of the annular groove (19) and the annular projection (20) are both trapezoidal.

7. The pressure tapping device for pipeline according to claim 3, characterized in that: A filter screen (24) is connected inside the filtering pipe (18).

8. The pressure tapping device for pipeline according to claim 3, characterized in that: The end of the filtering pipe (18) away from the fourth pipe (17) is connected to a threaded pipe (25), and the threaded pipe (25) is threadedly connected to the third branch pipe (7).

9. The pipeline pressure tapping device according to claim 3, characterized in that: A sealing groove (26) is provided on the inner wall of the first pipe (10), and a sealing ring (27) is connected inside the sealing groove (26).

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