Unblocking and blocking tool for gas pipeline pressure sampling pipe

Abstract

The utility model belongs to the technical field of pipeline dredging, and particularly discloses a dredging tool for a gas pipeline pressure sampling pipe, which comprises a round rod and a cylinder with an open bottom end, the round rod movably penetrates through the top end of the cylinder, a limit ring for limiting the round rod to slide is arranged on the cylinder, the limit ring is sleeved on the round rod in a threaded manner, and the limit ring is fixedly connected with the cylinder. The other end of the round rod is provided with a conical head, the round rod is movably sleeved with a sleeve, the sleeve movably penetrates through the cylinder and is fixedly connected with the limiting ring, the sleeve is movably sleeved with a sealing ring, the sealing ring is located in the cylinder, and one end of the round rod is provided with a handle. When the sampling pipe of the pressure switch is blocked by tar, the cylinder is screwed on the external thread of the sampling pipe, the manual valve is opened, and then the round rod is pushed into the sampling pipe by using the handle, so that the blocked pipeline can be dredged, the structure is simple, the operation is convenient, and the blockage of the sampling pipe of the pressure switch of the boiler gas pipeline can be quickly and effectively dredged. The maintenance efficiency is improved, and efficient operation of the boiler is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline dredging technical field, concretely relates to a kind of unblock tool of coal gas pipeline pressure sampling pipe. BACKGROUND

[0002] In the operation process of boiler, the pressure switch of coal gas pipeline plays an important monitoring role, and the sampling pipe of the pressure switch of coal gas pipeline is an important component connecting the coal gas pipeline and the pressure switch, which is usually made of corrosion-resistant material and used to accurately transmit the pressure signal in the coal gas pipeline to the pressure switch for monitoring and controlling the coal gas pressure. The installation position and connection mode thereof need to be reasonably selected to ensure stable performance and safety and reliability.

[0003] However, impurities, tar, dust and other impurities contained in the coal gas accumulate in the sampling pipe of the pressure switch of coal gas pipeline, causing the sampling pipe to be blocked, resulting in the interlocking action of the pressure switch, and the coal gas control valve cannot work normally, affecting the efficient operation of the boiler. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an unblock tool for the sampling pipe of the pressure switch of coal gas pipeline to solve the problem that impurities, tar, dust and other impurities contained in the coal gas accumulate in the sampling pipe, causing the sampling pipe to be blocked, resulting in the interlocking action of the pressure switch, and the coal gas control valve cannot work normally, affecting the efficient operation of the boiler.

[0005] To achieve the above-mentioned purpose, the utility model provides a basic scheme: an unblock tool for the sampling pipe of the pressure switch of coal gas pipeline, which comprises a round rod and a cylinder with an open bottom end. The inner wall of the cylinder is provided with internal threads, the round rod is movably penetrated through the top end of the cylinder, the cylinder is provided with a limiting component for limiting the sliding of the round rod, and the other end of the round rod is provided with a conical head.

[0006] The utility model has the advantages of simple structure, convenient operation, and can quickly and effectively dredge the blocked sampling pipe of the pressure switch of boiler coal gas pipeline, improve the maintenance efficiency, and ensure the efficient operation of the boiler.

[0007] Scheme II, which is an optimization of the basic scheme, the limiting component comprises a limiting ring, the limiting ring is threadedly connected to the round rod, and the limiting ring is fixedly connected to the cylinder. The limiting ring is used to limit the round rod, and when the round rod is not working or does not need to be extended downward, the position of the round rod is fixed by the limiting ring.

[0008] Scheme three, this is the preferred scheme two, the round rod is movably sleeved with a sleeve, the sleeve is movably penetrated through the cylinder and is fixedly connected with the limiting ring. The lower end of the sleeve is attached to the round rod, when the round rod is pulled out upward, the tar adhered on the outer wall of the round rod can be scraped off, preventing the tar from penetrating from the gap between the sleeve and the round rod, the limiting ring can limit one side of the sleeve, so that the sleeve cannot enter the fixing member completely, preventing falling.

[0009] Scheme four, this is the preferred scheme three, the sleeve is movably sleeved with a sealing ring, and the sealing ring is located in the cylinder. Since the sampling pipe hand valve needs to be opened manually during the plugging work, the sealing ring is arranged to prevent gas leakage from the gap after plugging.

[0010] Scheme five, this is the preferred scheme four, one end of the round rod is detachably connected with a handle. The handle is arranged to facilitate the worker to hold and apply a rotating force, so that the rotation of the round rod is controlled more conveniently, which is beneficial to accurately control the rotation angle and force of the round rod. The detachable connection mode can remove the handle when the round rod needs to be taken out, and the round rod can be pulled out of the sleeve.

[0011] Scheme six, this is the preferred scheme five, the round rod, the cylinder, the limiting ring, the sleeve and the handle are all made of stainless steel. Tar usually has certain corrosiveness, and stainless steel has good corrosion resistance and is not easy to be corroded and rusted by tar, thereby prolonging the service life of the tool. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a perspective view of a coal gas pipeline pressure sampling pipe plugging tool according to the present application;

[0013] Figure 2 is a perspective view of a coal gas pipeline pressure sampling pipe plugging tool according to the present application when the round rod is pulled down;

[0014] Figure 3 is a top view of a coal gas pipeline pressure sampling pipe plugging tool according to the present application;

[0015] Figure 4 is Figure 3 is a sectional view of A-A in FIG. DETAILED DESCRIPTION

[0016] The present application will be further described in detail through specific embodiments:

[0017] The reference signs in the drawings of the specification include: 1. round rod, 2. cylinder, 3. internal thread, 4. conical head, 5. limiting ring, 6. sleeve, 7. sealing ring, 8. handle.

[0018] EMBODIMENT

[0019] The embodiment is basically as shown in the accompanying drawings Figure 1 toFigure 4 The utility model discloses a kind of unblocking tools of coal gas pipeline pressure sampling pipe, including round rod 1 and the bottom end open cylinder 2, inner thread 3 is provided on the inner wall of cylinder 2, round rod 1 movably penetrates the top end of cylinder 2, limiting assembly for limiting the sliding of round rod 1 is provided on cylinder 2, limiting assembly includes limiting ring 5, limiting ring 5 is threadedly sleeved on round rod 1, limiting ring 5 is fixedly connected with cylinder 2, the other end of round rod 1 is provided with conical head 4, sleeve pipe 6 is movably sleeved on round rod 1, sleeve pipe 6 movably penetrates cylinder 2 and is fixedly connected with limiting ring 5, sleeve pipe 6 is movably sleeved with sealing ring 7, sealing ring 7 is located in cylinder 2, one end of round rod 1 is detachably connected with handle 8, and round rod 1, cylinder 2, limiting ring 5, sleeve pipe 6 and handle 8 are all stainless steel materials.

[0020] The embodiment of the present application is:

[0021] When the coal gas pipe pressure sampling pipe is blocked by tar, causing unstable pressure measurement, the device is used for unblocking, first, close the hand valve on the sampling pipe, remove the pressure gauge from the sampling pipe, then extend sleeve pipe 6 and round rod 1 into the sampling pipe, sleeve cylinder 2 on the sampling pipe, and connect with the outer thread of the sampling pipe, ensure that the connection is tight, then open the hand valve on the sampling pipe, then rotate handle 8 in reverse direction to drive round rod 1 to rotate, rotate round rod 1 away from limiting ring 5, then push round rod 1 downward, use conical head 4 to poke the tar lump, observe whether there is gas flowing in the process, if there is gas flowing, it means that the tar lump is successfully poked, if there is no gas flowing, repeatedly push and pull round rod 1 until the gas flows, after unblocking the sampling pipe successfully, close the hand valve on the sampling pipe, pull round rod 1 upward, use sleeve pipe 6 to scrape the tar adhered to the outer wall of round rod 1, after conical head 4 is against one side of sleeve pipe 6, rotate round rod 1 back and forth to drive conical head 4 to rub against one side of sleeve pipe 6 repeatedly, to achieve the purpose of cleaning the tar on the horizontal surface of conical head 4 by using sleeve pipe 6, then rotate handle 8 in forward direction to drive round rod 1 to rotate, reset round rod 1 on limiting ring 5, then remove cylinder 2 from the outer thread of the sampling pipe, install the pressure gauge back on the sampling pipe, finally open the hand valve, and the gas can flow into the pressure gauge through the sampling pipe.

[0022] The above is only the embodiment of the utility model, and the specific structure and characteristics of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which should also be considered as the protection scope of the utility model, which will not affect the effect and practicality of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A plug removal tool for a coal gas pipeline pressure sampling pipe, characterized by, The utility model relates to a kind of circular rod and bottom end open cylinder, the inner wall of the cylinder (2) is equipped with internal thread (3), the circular rod (1) is movably penetrated cylinder (2) top, the cylinder (2) is equipped with for limiting the limiting assembly of circular rod (1) sliding, the other end of the circular rod (1) is equipped with conical head (4).

2. A tool for unblocking a pressure sampling pipe of a coal gas pipeline according to claim 1, wherein The limiting assembly includes a limiting ring (5), which is threadedly sleeved on the circular rod (1), and the limiting ring (5) is fixedly connected with the cylinder (2).

3. A tool for unblocking a pressure sampling tube of a gas pipeline according to claim 2, characterized in that The circular rod (1) is movably sleeved with a sleeve (6), the sleeve (6) is movably penetrated the cylinder (2) and is fixedly connected with the limiting ring (5).

4. A tool for unblocking a pressure sampling pipe of a gas pipeline according to claim 3, characterized in that The sleeve (6) is movably sleeved with a sealing ring (7), and the sealing ring (7) is located in the cylinder (2).

5. A tool for unblocking a pressure sampling pipe of a gas pipeline according to claim 4, characterized in that One end of the circular rod (1) is detachably connected with a handle (8).

6. A tool for unblocking a pressure sampling pipe of a gas pipeline according to claim 5, characterized in that The circular rod (1), the cylinder (2), the limiting ring (5), the sleeve (6) and the handle (8) are all made of stainless steel.

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