Petrochemical pipeline drainage safe dredging device and dredging method

Abstract

The invention discloses a petrochemical pipeline drainage safe dredging device and method, the petrochemical pipeline drainage safe dredging device comprises a cavity, the cavity is sleeved with a drainage dredging label, one side of the cavity is connected with a replacement pipeline control valve through a pipeline, the drainage dredging label is fixedly connected with a steam baffle, and the bottom of the drainage dredging label is connected with a lever handle. According to the dredging equipment, the force exerting mode of personnel is improved, force exerting from bottom to top is changed into force exerting from top to bottom in the operation process, force exerting space is saved, the operation convenience is greatly improved, the bottom of the dredging equipment is sealed and guided, and the situation that the hands of the personnel are scalded due to the fact that high-temperature steam is sprayed out from the bottom in the operation process is effectively avoided; the risk of scalding personnel is thoroughly avoided, and safe and continuous use of the drainage dredging device can be ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of chemical equipment, relates to a safety dredging device for petrochemical pipeline drain, and also relates to a method for dredging petrochemical pipeline drain. Background Art

[0002] After the refining unit shuts down, it is necessary to purge the medium steam in the process pipeline to ensure that there is no medium leakage when the pipeline is opened during the later unit maintenance, and to avoid causing safety and environmental protection accidents. In the actual production process, due to the long-term disuse of some pipeline drains, impurities in the pipeline are deposited for a long time and blocked, so that the safety of opening the pipeline cannot be guaranteed, and the safe handover of the pipeline is affected. Generally, in order to dredge the drain, operators use iron skewers for dredging. However, there is pressure in the pipeline, and when it is unblocked, high-temperature steam will spray out instantly, which is easy to splash on the operator's face and hands, causing burns to the operator or debris to fly into the eyes. At present, although there is a disclosed pipeline dredging device, it has inconvenient operation, easy blockage during use, and there is a risk of injury caused by leakage of internal pressurized medium. Summary of the Invention

[0003] The purpose of the present invention is to provide a safety dredging device for petrochemical pipeline drain, which can clean and dredge the impurities deposited in the pipeline, and ensure the safe and continuous use of the drain dredging device.

[0004] Another purpose of the present invention is to provide a method for dredging petrochemical pipeline drain, which has the characteristics of greatly facilitating the shutdown purge process and improving the purge quality of the process pipeline.

[0005] The technical solution adopted by the present invention is that a safety dredging device for petrochemical pipeline drain includes a cavity, a drain dredging rod is sleeved on the cavity, one side of the cavity is connected with a replacement pipeline control valve through a pipeline, a steam baffle is fixedly connected to the drain dredging rod, and a lever handle is connected to the bottom of the drain dredging rod.

[0006] The characteristics of the present invention also lie in:

[0007] The outer diameter of the steam baffle matches the inner diameter of the cavity wall, and the steam baffle is sleeved in the cavity.

[0008] A pin hole is opened on the side wall of the cavity near the bottom, and a pin is inserted into the pin hole of the cavity for limiting the steam baffle.

[0009] Several support rods are arranged at the bottom of the cavity, and a connecting thread is also arranged at the top of the cavity.

[0010] Threads are provided on the outer surface of each support rod.

[0011] A connecting hole is opened at the bottom of the drain dredging rod, and the connecting hole at the bottom of the drain dredging rod is threadedly connected with the lever handle.

[0012] Another technical solution adopted by the present invention is a method for dredging the drain of a petrochemical pipeline, which is specifically implemented according to the following steps:

[0013] Step 1: Connect the connecting thread to the drain valve, and adjust the support rod so that the cavity is supported on the ground;

[0014] Step 2: Pass the drain dredging rod longitudinally through the connecting thread and sleeve it into the cavity. Sleeve the steam baffle between the drain dredging rod and the cavity, and use a pin to limit the steam baffle inside the cavity;

[0015] Step 3: Open the replacement pipeline control valve and the drain valve, press the lever handle to make the drain dredging rod enter the petrochemical pipeline through the drain valve, so that the medium in the petrochemical pipeline is discharged through the drain valve and discharged through the replacement pipeline control valve to complete the dredging of the petrochemical pipeline drain.

[0016] The beneficial effects of the present invention are as follows: The dredging device of the present invention eliminates the drawbacks of existing dredging equipment. After applying the lever principle, the convenience of the dredging process is realized, enabling personnel to operate in a safe position and avoiding scalding of the hands. Compared with the existing publicly disclosed devices, during the use of the innovative device of the present invention, the way of applying force by personnel is improved. The force application direction during operation is changed from bottom-up to top-down, saving the force application space and greatly improving the convenience of operation. In addition, the bottom of the dredging equipment is sealed and guided, effectively avoiding scalding of personnel's hands by high-temperature steam spraying from the bottom during the operation, completely avoiding the risk of scalding personnel, and ensuring the safe and continuous use of the drain dredging device. This dredging device can greatly facilitate the purging of process pipelines during shutdown, improve the purging quality of process pipelines, ensure absolute energy isolation, and is suitable for popularization and application in the refining and chemical industries and related fields. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the petrochemical pipeline drain safety dredging device of the present invention.

[0018] In the figure, 1. Connecting thread, 2. Cavity, 3. Steam baffle, 4. Lever handle, 5. Support ring, 6. Support rod, 7. Drain dredging rod, 8. Pin, 9. Replacement pipeline control valve. Detailed Embodiments

[0019] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0020] The petrochemical pipeline drain safety dredging device of the present invention, as Figure 1As shown, it includes a cavity 2, a connecting thread 1 is provided on the top of the cavity 2, a support rod 6 is connected to the bottom of the cavity 2, a drain guiding and unblocking skewer 7 is longitudinally sleeved in the middle of the cavity 2, the drain guiding and unblocking skewer 7 is connected to a steam baffle 3, the steam baffle 3 is sleeved with the cavity 2, a plurality of support rods 6 are provided at the bottom of the cavity 2, each support rod 6 is provided with a thread on the outer surface, the support rod 6 adjusts the height according to actual needs to support the petrochemical pipeline drain guiding and unblocking device, a pin hole is provided near the bottom of the cavity 2, a pin 8 is installed in the pin hole, the pin 8 passes through the pin hole of the side wall of the cavity 2 to limit the steam baffle 3, a connecting hole is provided at the bottom of the drain guiding and unblocking skewer 7, the thread at the bottom of the drain guiding and unblocking skewer 7 is connected to a lever handle 4, a support ring 5 is fixed to the cavity 2, the support ring 5 is located on the side of the cavity 2 close to the bottom, and the support ring 5 is sleeved with the lever handle 4.

[0021] The petrochemical pipeline drainage safety dredging device of the present invention has the following working principle: the cavity 2 is threadedly connected to the drainage valve of the petrochemical pipeline through the connecting thread 1, and the connection thread 1 is rotated while the cavity 2 does not move to achieve the connection with the drainage. After the drainage dredging device is connected to the drainage valve, the drainage dredging stub 7 and the steam baffle 3 connected to the drainage dredging stub 7 are inserted into the dredging pipeline. When the steam baffle 3 extends above the pin 8 at the lower end of the device, the lower end pin 8 is screwed in to the deepest point to ensure that the pin 8 can prevent the steam baffle 3 from falling from the bottom. The lever handle 4 is passed through the support ring 5 at the lower end of the cavity 2 and connected to the small hole bolt at the bottom of the drainage dredging stub 7, the support rod 6 is adjusted to support the ground stably, the replacement pipeline valve 9 is opened and the drainage valve is opened at the same time, and the lever handle 4 is pressed to make the drainage dredging stub 7 enter the pipeline body through the drainage valve, so that the medium in the pipeline passes through the drainage valve and then is discharged through the replacement pipeline control valve 9, so as to avoid the splashing of the medium and cause damage to personnel. After the pipeline is unblocked, close the drain valve, keep the replacement pipeline control valve 9 normally open, remove the lever handle 4, loosen the support rod 6, loosen the pin 8, and then pull out the drain unblocking sign 7 and the steam baffle 3, clean the medium impurities on the steam baffle 3 and then maintain it.

[0022] Example 1

[0023] like Figure 1As shown in the figure, the petrochemical pipeline drain safety dredging device proposed in this embodiment includes a cavity 2, a drain dredging rod 7 is sleeved on the cavity 2, one side of the cavity 2 is connected with a replacement pipeline control valve 9 through a pipeline, a steam baffle 3 is fixedly connected to the drain dredging rod 7, a lever handle 4 is connected to the bottom of the drain dredging rod 7, several support rods 6 are arranged at the bottom of the cavity 2, a connecting thread 1 is also arranged at the top of the cavity 2, a connecting hole is opened at the bottom of the drain dredging rod 7, and the connecting hole at the bottom of the drain dredging rod 7 is threadedly connected with the lever handle 4. A pin hole is opened on the side wall of the cavity 2 near the bottom, and a pin 8 is inserted into the pin hole of the cavity 2. The pin 8 is used to limit the steam baffle 3. Press the lever handle 5 to make the drain dredging rod 7 enter the pipeline body through the drain valve, so that the medium in the pipeline passes through the drain valve and then is discharged through the replacement pipeline control valve 9. After loosening the pin 8, the drain dredging rod 7 and the steam baffle 3 are pulled out, and the medium impurities on the steam baffle 3 are cleaned and then maintained.

[0024] Embodiment 2

[0025] As Figure 1 As shown in the figure, the petrochemical pipeline drain safety dredging device proposed in this embodiment includes a cavity 2, a drain dredging rod 7 is sleeved on the cavity 2, one side of the cavity 2 is connected with a replacement pipeline control valve 9 through a pipeline, a steam baffle 3 is fixedly connected to the drain dredging rod 7, the outer diameter of the steam baffle 3 matches the inner diameter of the inner wall of the cavity 2, the steam baffle 3 is sleeved in the cavity 2, a lever handle 4 is connected to the bottom of the drain dredging rod 7, several support rods 6 are arranged at the bottom of the cavity 2, a connecting thread 1 is also arranged at the top of the cavity 2, threads are provided on the outer surface of each support rod 6, a connecting hole is opened at the bottom of the drain dredging rod 7, and the connecting hole at the bottom of the drain dredging rod 7 is threadedly connected with the lever handle 4. A support ring 5 is fixedly connected to the cavity 2, the support ring 5 is located on one side of the cavity 2 near the bottom, the support ring 5 is sleeved with the lever handle 4, the lever handle 4 passes through the support ring 5 at the lower end of the cavity 2 and is bolted to the small hole at the bottom of the drain dredging rod 7. A pin hole is opened on the side wall of the cavity 2 near the bottom, and a pin 8 is inserted into the pin hole of the cavity 2. The pin 8 is used to limit the steam baffle 3. Press the lever handle 5 to make the drain dredging rod 7 enter the pipeline body through the drain valve, so that the medium in the pipeline passes through the drain valve and then is discharged through the replacement pipeline control valve 9. After loosening the pin 8, the drain dredging rod 7 and the steam baffle 3 are pulled out, and the medium impurities on the steam baffle 3 are cleaned and then maintained.

[0026] Embodiment 3

[0027] The petrochemical pipeline drain dredging method proposed in this embodiment is specifically implemented according to the following steps:

[0028] Step 1, connect the connecting thread 1 with the drain valve, and adjust the support rod 6 to support the cavity 2 on the ground;

[0029] Step 2: Thread the drain cleaning rod 7 through the connecting thread 1 longitudinally and socket it inside the cavity 2. Socket the steam baffle 3 between the drain cleaning rod 7 and the cavity 2, and use the pin 8 to position the steam baffle 3 inside the cavity 2.

[0030] Step 3: Open the replacement pipeline control valve 9 and the drain valve. Press the lever handle 4 to make the drain cleaning rod 7 enter the petrochemical pipeline through the drain valve, so that the medium in the petrochemical pipeline is discharged through the drain valve and discharged through the replacement pipeline control valve 9, completing the drain cleaning of the petrochemical pipeline.

Claims

1. Petrochemical pipeline drain safety dredging device, Characterized in that, It includes a cavity (2), the cavity (2) is sleeved with a drain dredging rod (7), one side of the cavity (2) is connected with a replacement pipeline control valve (9) through a pipeline, the drain dredging rod (7) is fixedly connected with a steam baffle (3), and the bottom of the drain dredging rod (7) is connected with a lever handle (4).

2. The petrochemical pipeline drain safety dredging device according to claim 1, Characterized in that, The outer diameter of the steam baffle (3) matches the inner diameter of the inner wall of the cavity (2), and the steam baffle (3) is sleeved in the cavity (2).

3. The petrochemical pipeline drain safety dredging device according to claim 1, Characterized in that, A pin hole is opened on the side wall of the cavity (2) near the bottom, a pin (8) is inserted into the pin hole of the cavity (2), and the pin (8) is used to limit the steam baffle (3).

4. The petrochemical pipeline drain safety dredging device according to claim 3, Characterized in that, A plurality of support rods (6) are arranged at the bottom of the cavity (2), and a connecting thread (1) is also arranged at the top of the cavity (2).

5. The petrochemical pipeline drain safety dredging device according to claim 4, Characterized in that, Threads are provided on the outer surface of each support rod (6).

6. The petrochemical pipeline drain safety dredging device according to claim 5, Characterized in that, A connecting hole is opened at the bottom of the drain dredging rod (7), and the connecting hole at the bottom of the drain dredging rod (7) is threadedly connected with the lever handle (4).

7. The petrochemical pipeline drain safety dredging device according to claim 6, Characterized in that, A support ring (5) is fixedly connected to the cavity (2), the support ring (5) is located on one side of the cavity (2) near the bottom, and the support ring (5) is sleeved with the lever handle (4).

8. Petrochemical pipeline drain dredging method, Characterized in that, Using the petrochemical pipeline drain safety dredging device as described in claim 7, it is specifically implemented according to the following steps: Step 1, connect the connecting thread (1) with the drain valve, and adjust the support rod (6) so that the cavity (2) is supported on the ground; Step 2, pass the drain dredging rod (7) through the connecting thread (1) and longitudinally sleeve it in the cavity (2), sleeve the steam baffle (3) between the drain dredging rod (7) and the cavity (2), and use the pin (8) to limit the steam baffle (3) inside the cavity (2); Step 3, open the replacement pipeline control valve (9) and the drain valve, press the lever handle (4) to make the drain dredging rod (7) enter the petrochemical pipeline through the drain valve, so that the medium in the petrochemical pipeline is discharged through the drain valve and discharged through the replacement pipeline control valve (9) to complete the petrochemical pipeline drain dredging.

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