In-situ installation under-pressure plugging device for RD30 oil electrode in water

Abstract

The utility model discloses an RD30 oil-in-water electrode in-situ installation under-pressure plugging device, which relates to the technical field of oil-in-water measurement, and comprises an installation flange, an electrode storage bin is fixed at the top of the installation flange, a sealing sleeve is arranged in the electrode storage bin, a lower fixing plate is fixed at the top of the electrode storage bin, and an upper fixing plate is fixed at the bottom of the lower fixing plate. An upper fixing plate is fixed to one side of the top of the lower fixing plate through a guide rod, a screw penetrates through the top of the upper fixing plate, a hand wheel is connected to the top end of the screw, a movable plate is connected between the screw and the guide rod, and a linear bearing and a threaded sleeve are arranged on one side of the bottom of the movable plate. Compared with direct pipeline insertion type installation, the defect that a pipeline or a device needs to be closed during overhaul and maintenance is overcome, the maintenance cost is reduced, compared with bypass leading-out type installation, only one flange short section needs to be welded to the pipeline, the overall size is small, the requirement for the installation space is not large, the field operation time is shortened, and the installation efficiency is improved. And the hysteresis of the measurement result is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-in-water measurement, in particular to an in-situ installation and pressure plugging device for an RD30 oil-in-water electrode. Background Art

[0002] With the continuous development of the petrochemical industry, the use of oil substances is becoming more and more widespread. In order to avoid the pollution and impact of oil substances on the process and the surrounding environment, the discharge of oily wastewater must be strictly tested and controlled. In order to facilitate the electrode to detect and analyze water bodies, the electrode installation is divided into direct insertion into the pipeline measurement and lead-out bypass measurement. However, because water impurities are often uncontrollable, the electrode needs to be maintained regularly.

[0003] First, for the traditional installation form, when maintaining or replacing the electrode, the process pipeline needs to be closed, and even the related equipment may need to be shut down, which results in high maintenance costs and inconvenience. Secondly, the bypass flow pool installation requires welding a bypass on the main pipeline to lead it to the flow pool, and the electrode is installed in the flow pool for measurement. The on-site work volume is large and there are certain space requirements. During later maintenance, the bypass still needs to be closed for maintenance or replacement. If the lead-out distance is too far, the measurement results will be delayed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an in-situ installation and pressure plugging device for RD30 oil-in-water electrode to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an RD underwater oil electrode in-situ installation pressure plug-in and pull-out device, comprising a mounting flange, an electrode storage bin is fixed on the top of the mounting flange, and a sealing sleeve is arranged inside the electrode storage bin, a lower fixed plate is fixed on the top of the electrode storage bin, and an upper fixed plate is fixed to one side of the top of the lower fixed plate through a guide rod, a screw rod passes through the top of the upper fixed plate, and a hand wheel is connected to the top of the screw rod, a movable plate is connected between the screw rod and the guide rod, and a linear bearing and a threaded sleeve are respectively arranged on one side of the bottom of the movable plate, a probe rod passes through the other side of the bottom of the movable plate, and a threading gland is connected to the top of the probe rod, and a locking nut is sleeved on the outside of the probe rod.

[0006] By adopting the above technical solution, the staff closes the root valve, rotates the handwheel to rotate the screw, and after the screw rotates, it cooperates with the guide rod to move the movable plate up to the top. While the movable plate moves up, it drives the probe rod up to pull the electrode body out of the electrode storage bin. At this time, the staff loosens the threading gland and rotates to remove the electrode body. Then the staff passes the cable of the new electrode body through the probe rod from bottom to top, and then the staff rotates the new electrode body to install it at the bottom of the probe rod. At the same time, the staff tightens the threading gland to lock the cable of the new electrode body. Then the staff reverses the handwheel by turning the handle to reverse the screw, so that the movable plate drives the electrode body to move down into the electrode storage bin through the probe rod.

[0007] Furthermore, the movable plate is slidably connected to the guide rod via a linear bearing, and the threaded sleeve is threadedly connected to the screw rod.

[0008] By adopting the above technical solution, the hand wheel is rotated to rotate the screw rod, and after the screw rod rotates, it cooperates with the guide rod to move the movable plate up or down.

[0009] Furthermore, the interior of the probe rod is hollow, and the locking nut is threadedly connected to the probe rod.

[0010] By adopting the above technical solution, the staff passes the cable of the new electrode body through the probe rod from bottom to top, and then the staff rotates the new electrode body to install it on the bottom end of the probe rod. At the same time, the staff tightens the threading gland to lock the cable of the new electrode body.

[0011] Furthermore, the bottom end of the probe rod is connected to an electrode body, and the electrode body is detachably connected to the probe rod by means of a threaded connection.

[0012] By adopting the above technical solution, the movable plate moves up while driving the probe rod upward, thereby pulling the electrode body out of the electrode storage bin. At this time, the staff loosens the threading gland and rotates to remove the electrode body.

[0013] Furthermore, the electrode body is slidably connected to the sealing sleeve.

[0014] By adopting the above technical solution, the hand wheel is rotated to rotate the screw to move the movable plate up. When the movable plate moves up, it drives the probe rod to move up so that the electrode body enters the electrode storage bin. At the same time, the locking nut is tightened to limit the position and prevent it from falling, so as to facilitate inspection and maintenance.

[0015] Furthermore, a mounting block passes through the top of the hand wheel, and a crank is connected to the top of the mounting block, and a rotating shaft is connected between the mounting block and the crank.

[0016] By adopting the above technical solution, the staff can revolve the crank handle around the center of the hand wheel to drive the hand wheel to rotate, which can reduce the force used to rotate the hand wheel.

[0017] Furthermore, a thread is provided below the outer surface of the mounting block, and the mounting block is threadedly connected to the handwheel.

[0018] By adopting the above technical solution, after placing the mounting block on the top of the hand wheel, the mounting block is tightened by a wrench to complete the installation operation. For disassembly, the mounting block can be loosened by a wrench to be removed.

[0019] Furthermore, the crank is rotatably connected to the mounting block via a rotating shaft.

[0020] By adopting the above technical solution, when the staff revolves the crank handle, the crank handle rotates on the mounting block through the rotating shaft, thereby preventing the staff's hands from being rubbed and hurt.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] Compared with the direct insertion pipeline installation, the utility model avoids the disadvantage that the pipeline or device needs to be closed during inspection and maintenance, thereby reducing maintenance costs. Compared with the lead-out bypass installation, the pipeline only needs to weld a flange short section, and the overall volume is small, the installation space requirement is not large, the on-site operation time is reduced, and the lag of the measurement result is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the electrode of the utility model;

[0026] Figure 4 For the utility model Figure 3 A magnified view of the structure in Figure 2.

[0027] In the figure: 1. Mounting flange; 2. Electrode storage compartment; 3. Lower fixed plate; 4. Movable plate; 5. Guide rod; 6. Upper fixed plate; 7. Electrode body; 8. Probe rod; 9. Locking nut; 10. Threading gland; 11. Screw; 12. Linear bearing; 13. Threaded sleeve; 14. Handwheel; 15. Sealing sleeve; 16. Mounting block; 17. Crank handle; 18. Rotating shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] Embodiment 1:

[0031] RD30 oil-in-water electrode in-situ installation pressure plug-in device, such as Figure 1-Figure 3 As shown, it includes a mounting flange 1, which is convenient for installation on a pre-installed root valve; an electrode storage bin 2 is fixed on the top of the mounting flange 1, and a sealing sleeve 15 is arranged inside the electrode storage bin 2, and the electrode main body electrode 7 is stored in the storage bin 2 for easy inspection and maintenance; a lower fixing plate 3 is fixed on the top of the storage bin 2, and an upper fixing plate 6 is fixed on one side of the top of the lower fixing plate 3 through a guide rod 5, and a screw rod 11 passes through the top of the upper fixing plate 6, and a hand wheel 14 is connected to the top of the screw 11, and a movable plate 4 is connected between the screw 11 and the guide rod 5, and one side of the bottom of the movable plate 4 is divided into A linear bearing 12 and a threaded sleeve 13 are separately provided. The movable plate 4 is slidably connected to the guide rod 5 through the linear bearing 12, and the threaded sleeve 13 is threadedly connected to the screw 11, which is convenient for adjusting the position of the electrode body 7 for measurement, maintenance and replacement operations; a probe rod 8 is passed through the other side of the bottom of the movable plate 4, and a threading gland 10 is connected to the top of the probe rod 8. The inside of the probe rod 8 is hollow, which is convenient for installing the cable of the electrode body 7; a locking nut 9 is sleeved on the outside of the probe rod 8, and the locking nut 9 is threadedly connected to the probe rod 8. Tighten the locking nut 9 to limit the position and prevent it from falling.

[0032] See also Figure 1-Figure 3 In the above embodiment, the bottom end of the probe rod 8 is connected to the electrode body 7, and the electrode body 7 is detachably connected to the probe rod 8 by a threaded connection. The electrode body 7 is slidably connected to the sealing sleeve 15. The staff loosens the threading gland 10 and rotates to remove the electrode body 7. Then the staff passes the cable of the new electrode body 7 through the probe rod 8 from bottom to top. Then the staff rotates the new electrode body 7 and installs it at the bottom end of the probe rod 8. At the same time, the staff tightens the threading gland 10 to lock the cable of the new electrode body 7.

[0033] Embodiment 2:

[0034] Based on the above embodiment 1, refer to Figure 1-Figure 4 A mounting block 16 passes through the top of the handwheel 14, and a thread is provided below the outer surface of the mounting block 16. The mounting block 16 is threadedly connected to the handwheel 14 for easy disassembly and assembly; a crank 17 is connected to the top of the mounting block 16, and a rotating shaft 18 is connected between the mounting block 16 and the crank 17. The handwheel 14 is rotated by the crank 17 to rotate the screw rod 11.

[0035] The implementation principle of the utility model is as follows: first, the device is connected to the root valve reserved on the pipeline through the mounting flange 1. Since the probe rod 8 is hollow, the cable of the electrode body 7 can pass through both ends of the probe rod 8 and extend from the top of the probe rod 8 to connect with the external circuit. At the same time, due to the setting of the threading gland 10, the cable of the electrode body 7 can be locked;

[0036] When replacing the electrode body 7, the staff closes the root valve, and the staff rotates the handwheel 14 through the crank 17 to rotate the screw 11. After the screw 11 rotates, it cooperates with the guide rod 5 to move the movable plate 4 up to the top. While the movable plate 4 moves up, it drives the probe 8 to move up, so that the electrode body 7 is pulled out from the electrode storage bin 2. At this time, the staff loosens the threading gland 10 and rotates to remove the electrode body 7. Then the staff passes the cable of the new electrode body 7 from bottom to top through the probe 8. Then the staff rotates the new electrode body 7 and installs it at the bottom of the probe 8. At the same time, the staff tightens the threading gland 10 to lock the cable of the new electrode body 7. Then the staff reverses the handwheel 14 through the crank 17 to reverse the screw 11, so that the movable plate 4 drives the electrode body 7 to move down through the probe 8 and enter the electrode storage bin 2;

[0037] When inserting the electrode body 7 for measurement, the staff continues to reverse the hand wheel 14 through the crank 17, so that the electrode body 7 extends from the bottom of the electrode storage bin 2 and passes through the mounting flange 1 into the root valve to contact the liquid, thereby facilitating the measurement work. At the same time, the locking nut 9 is tightened to limit the position to prevent it from falling, and the sealing sleeve 15 is tightly fitted with the probe rod 8 to prevent liquid leakage;

[0038] When the electrode body 7 is pulled out for inspection and maintenance, the staff closes the root valve and rotates the hand wheel 14 through the crank 17 to rotate the screw 11 to move the movable plate 4 upward. The movable plate 4 moves upward and drives the probe rod 8 upward to allow the electrode body 7 to enter the electrode storage bin 2. At the same time, the locking nut 9 is tightened to limit the position and prevent it from falling, so as to facilitate inspection and maintenance.

[0039] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. RD30 oil-in-water electrode in-situ installation pressure plug-in device, including a mounting flange (1), characterized in that: An electrode storage bin (2) is fixed on the top of the mounting flange (1), and a sealing sleeve (15) is arranged inside the electrode storage bin (2); a lower fixing plate (3) is fixed on the top of the electrode storage bin (2), and an upper fixing plate (6) is fixed to one side of the top of the lower fixing plate (3) through a guide rod (5); a screw rod (11) passes through the top of the upper fixing plate (6), and a hand wheel (14) is connected to the top of the screw rod (11); a movable plate (4) is connected between the screw rod (11) and the guide rod (5), and a linear bearing (12) and a threaded sleeve (13) are respectively arranged on one side of the bottom of the movable plate (4); a probe rod (8) passes through the other side of the bottom of the movable plate (4), and a threading gland (10) is connected to the top of the probe rod (8), and a locking nut (9) is sleeved on the outside of the probe rod (8).

2. The RD30 oil-in-water electrode in-situ installation pressure plugging and unplugging device according to claim 1 is characterized in that: The movable plate (4) is slidably connected to the guide rod (5) via a linear bearing (12), and the threaded sleeve (13) is threadedly connected to the screw rod (11).

3. The RD30 oil-in-water electrode in-situ installation pressure plugging and unplugging device according to claim 1 is characterized in that: The interior of the probe rod (8) is hollow, and the locking nut (9) is threadedly connected to the probe rod (8).

4. The RD30 oil-in-water electrode in-situ installation pressure plugging and unplugging device according to claim 1 is characterized in that: The bottom end of the probe rod (8) is connected to an electrode body (7), and the electrode body (7) is detachably connected to the probe rod (8) by means of a threaded connection.

5. The RD30 oil-in-water electrode in-situ installation pressure plugging and unplugging device according to claim 4 is characterized in that: The electrode body (7) is slidably connected to the sealing sleeve (15).

6. The RD30 oil-in-water electrode in-situ installation and pressure plugging device according to claim 1 is characterized in that: A mounting block (16) passes through the top of the hand wheel (14), and a crank (17) is connected to the top of the mounting block (16), and a rotating shaft (18) is connected between the mounting block (16) and the crank (17).

7. The RD30 oil-in-water electrode in-situ installation and pressure plugging device according to claim 6 is characterized in that: A thread is provided below the outer surface of the mounting block (16), and the mounting block (16) is threadedly connected to the hand wheel (14).

8. The RD30 oil-in-water electrode in-situ installation and pressure plugging device according to claim 6 is characterized in that: The crank handle (17) is rotatably connected to the mounting block (16) via a rotating shaft (18).

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