Online unblocking and sampling device for pipeline valve

Abstract

One side of a pipeline is connected with one end of a ball valve, the other end of the ball valve is connected with one side of a flange, and the other side of the flange is fixedly connected with a sleeve; a conical screw rod is arranged in the sleeve, and a discharge port is formed in one side of the sleeve. According to the utility model, on-line unblocking and sampling of the pipeline and the valve are simultaneously completed, the labor intensity of unblocking is reduced, the unblocking and sampling efficiency is improved, the normalized sampling requirement is met, no negative influence is generated on a pipeline conveying system, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial pipeline maintenance, and in particular relates to an online blocking clearing and sampling device for pipeline valves. Background Art

[0002] In chemical companies, raw materials and reagents of different properties, forms and specifications need to be transported through pipelines. When transporting solid or liquid substances with high viscosity and easy crystallization, pipelines are prone to blockage. At the same time, in order to timely detect whether the samples transported by the pipeline meet the relevant requirements, it is also necessary to sample the materials in the pipeline, so as to timely grasp the production dynamics and ensure the normal production of products.

[0003] CN114062056A discloses a sampling device suitable for both negative and positive pressure gas pipelines. It utilizes two check valves connected to a syringe barrel, with manual ball valves connected in parallel at both ends. This device can be used for sampling in efficiency tests of mobile hydrogen recombiners in nuclear power plants and can be extended to other negative and positive pressure pipeline gas sampling operations. However, this device is only suitable for sampling gas pipelines and does not pose a risk of clogging.

[0004] CN113046514B discloses an automatic clearing system and method for a converter vaporization flue sampling hole, comprising a purge line, a purge drive line, a sampling drive line, a sampling line, a sampling hole control valve group, a needle drive line, a valve group drive line, a needle, and a control assembly. The system controls the needle drive line to open and drive the needle to move back and forth to achieve initial clearing. The purge drive line then opens the purge line, purging the converter vaporization flue sampling hole with nitrogen through the purge line to completely clear the blockage. This ensures the normal operation of the converter vaporization cooling flue while ensuring the unobstructed flow of the converter vaporization flue sampling hole for reliable sampling and accurate sampling data. However, the system has a complex structure and is only suitable for clearing and sampling converter vaporization flues, and the sample taken is gas.

[0005] CN210465045U discloses an online sampling device for high-pressure pipelines. It uses two sampling barrels and a ball valve to simultaneously sample fluid from both the upper and lower portions of the pipeline, obtaining a relatively complete fluid sample. A soft, pressure-resistant Gribby seal is used within the sampling barrel to isolate the fluid sample from the ambient air, providing a good seal and preventing contamination. However, this device is only suitable for sampling fluid samples and cannot clear blockages.

[0006] Therefore, it is necessary to develop a device that can simultaneously complete blockage clearing and sampling to suit different pipelines and sampling requirements. Utility Model Content

[0007] In response to the above technical problems, the utility model provides an online clearing and sampling device for pipeline valves, which simultaneously completes online clearing and sampling of pipelines and valves, reduces the labor intensity of clearing, improves the clearing and sampling efficiency, and meets the requirements of normalized sampling.

[0008] In order to achieve the above-mentioned purpose, the utility model provides an online clearing and sampling device for pipeline valves, one side of the pipeline is connected to one end of the ball valve, the other end of the ball valve is connected to one side of the flange, and the other side of the flange is fixedly connected to the sleeve; a conical screw is provided inside the sleeve, and a discharge port is provided on one side; an internal thread is provided inside the sleeve, and the sleeve is threadedly connected to the conical screw through the internal thread; one end of the conical screw is conical, and the other end is fixedly connected to the handle.

[0009] Preferably, the discharge port is located at 1 / 3 of the sleeve close to the flange end.

[0010] Further preferably, a rubber sealing ring is provided on the conical screw.

[0011] Preferably, a graphite sealing ring is provided at one end of the sleeve away from the flange.

[0012] Preferably, a hand valve is provided inside the discharge port.

[0013] Preferably, the sleeve is a stainless steel cylindrical barrel with a wall thickness of 8 mm.

[0014] Preferably, the conical screw is made of stainless steel.

[0015] The beneficial effects of the present invention are that the present invention can simultaneously complete online clearing and sampling of pipelines and valves, reduce the labor intensity of clearing, improve the efficiency of clearing and sampling, meet the requirements of normalized sampling, improve production efficiency, and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] In the figure, 1 is a flange, 2 is a sleeve, 3 is a tapered screw, 4 is a discharge port, 5 is a handle, 6 is an internal thread, 7 is a pipe, 8 is a ball valve, 9 is a graphite sealing ring, 10 is a rubber sealing ring, and 11 is a hand valve. DETAILED DESCRIPTION

[0018] The following further explains the technical solution of the present invention with reference to the accompanying drawings and specific embodiments. It is worth noting that the following embodiments are only preferred embodiments of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the claims. Any modifications or substitutions made to the technical solution of the present invention by those skilled in the art without creative effort shall fall within the scope of protection of the present invention.

[0019] Example 1

[0020] An online unblocking and sampling device for pipeline valves, one side of the pipeline 7 is fixedly connected to one end of the ball valve 8, the other end of the ball valve 8 is fixedly connected to one side of the flange 1, and the other side of the flange 1 is welded to the sleeve 2; a conical screw 3 is provided inside the sleeve 2, and a discharge port 4 is provided on one side. When sampling is required, the ball valve 8 is opened, the conical screw 3 is lowered to the bottom of the discharge port 4, and the discharge port manual valve 11 is opened to allow the material to flow from top to bottom and flow out through the discharge port 4.

[0021] Preferably, the discharge port 4 is located at 1 / 3 of the end of the sleeve 2 close to the flange 1.

[0022] Preferably, an internal thread 6 is provided inside the sleeve 2 , and the sleeve 2 cooperates with and is threadedly connected to the external thread on the conical screw 3 through the internal thread 6 to prevent material from entering the sleeve 2 .

[0023] Preferably, one end of the conical screw 3 is conical, used to enter the ball valve 8 and the pipeline 7 to penetrate the blockage, and the other end is fixedly connected to the handle 5. The forward and backward movement of the conical screw 3 is adjusted by rotating the handle 5, which is convenient for sampling and clearing blockages.

[0024] Further preferably, a rubber sealing ring 10 is provided on the conical screw 3 to prevent the material from leaking out and entering the sleeve 2.

[0025] Preferably, a graphite sealing ring 9 is provided at one end of the sleeve 2 away from the flange 1 for sealing the sleeve 2 .

[0026] Preferably, a hand valve 11 is provided inside the discharge port 4. When sampling is required, the hand valve 11 is opened, and the sample enters the discharge port 4 from the sleeve 2 and is discharged, completing the sampling; at the same time, the blockage during clearing can also be discharged through the hand valve 11 and the discharge port 4, avoiding secondary blockage.

[0027] Example 2

[0028] When the pipe 7 is blocked, open the ball valve 8, turn the handle 5 to push the conical screw 3 forward, enter the pipe, rotate it to penetrate the blockage, and then rotate the handle 5 to withdraw the conical screw 3. When the conical screw 3 withdraws to the discharge port 4, the blockage passes through the pipe 7, ball valve 8, flange 1, sleeve 2 in sequence, enters the discharge port 4, and is discharged from the pipe system.

[0029] When sampling is required, the operation is consistent with clearing the blockage. After the conical screw 3 descends to the discharge port 4, the hand valve 11 is opened, and the material flows from top to bottom and flows out through the discharge port 4, completing the sampling.

Claims

1. An online clearing and sampling device for pipeline valves, characterized by: One side of the pipe (7) is connected to one end of the ball valve (8), the other end of the ball valve (8) is connected to one side of the flange (1), and the other side of the flange (1) is fixedly connected to the sleeve (2); a conical screw (3) is provided inside the sleeve (2), and a discharge port (4) is provided on one side; an internal thread (6) is provided inside the sleeve (2), and the sleeve (2) is threadedly connected to the conical screw (3) through the internal thread (6); one end of the conical screw (3) is conical, and the other end is fixedly connected to the handle (5).

2. The online pipeline valve clearing and sampling device according to claim 1 is characterized in that: A rubber sealing ring (10) is provided on the conical screw (3).

3. The online pipeline valve clearing and sampling device according to claim 1 is characterized in that: A graphite sealing ring (9) is provided at one end of the sleeve (2) away from the flange (1).

4. The online pipeline valve clearing and sampling device according to claim 1 is characterized in that: A hand valve (11) is provided inside the discharge port (4).

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