Liquid reservoir of mechanical seal flushing system

Abstract

The utility model belongs to the technical field of liquid storage tanks, particularly relates to a liquid storage device of a mechanical seal flushing system, and aims to solve the problems that an existing liquid storage tank is in a sealed state, foreign matters are attached to the inner wall of the liquid storage tank after long-term use, and the liquid storage device is inconvenient to clean, the following scheme is provided: the liquid storage device comprises a liquid storage tank main body, and a liquid inlet pipe and a liquid outlet pipe are arranged on the outer side of the liquid storage tank main body; a servo motor is arranged at the top of the liquid storage tank body, a rotating rod is installed on an output shaft of the servo motor, a bottom wall cleaning rod is installed at the bottom end of the rotating rod and makes contact with the inner wall of the bottom of the liquid storage tank body, a side wall cleaning mechanism is installed on the outer side of the bottom wall cleaning rod, and a circular groove is formed in the top of the rotating rod. Two water holes are symmetrically formed in the inner wall of the circular groove, and a circular box is fixedly installed on the inner wall of the top of the liquid storage tank body. The liquid storage tank is simple in structure, and the inner wall of the liquid storage tank main body can be conveniently cleaned by scraping and washing the bottom and the side wall of the liquid storage tank main body.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid storage tanks, in particular to a liquid storage device for a mechanical seal flushing system. Background Art

[0002] In the petroleum and chemical industries, pumps are commonly used equipment for conveying liquid materials, and the components that prevent the conveying medium from leaking out basically use mechanical seals. In general, a single-end mechanical seal is used, that is, a set of seals can meet the use requirements. With the continuous improvement and improvement of sealing technology, double-end seals and tandem seals have emerged, that is, two sets of seals are installed on a pump at the same time, the inner seal is in contact with the sealing medium, and the outer seal is not in contact with the medium. There must be a buffer liquid between the inner seal and the outer seal to avoid premature failure of the seal due to dry friction of the outer seal, and at the same time provide good working conditions for the two seals, flow of buffer liquid, lubricate the sealing end face and take away the heat generated by the sealing work. The liquid reservoir is a device that provides a buffer liquid and circulates the buffer. After searching, the patent document with the publication (announcement) number: CN102225711B provides a mechanical seal flushing system reservoir, in which a cooling water pipe, a magnetic level gauge, a liquid level transmitter and a pressure switch are installed in the liquid storage tank, a buffer outlet and a buffer inlet are made in the liquid storage tank, and a liquid filling pump is installed on the liquid storage tank. Since the cooling water pipe is installed in the liquid storage tank, the system buffer is cooled to keep the buffer within a certain temperature range. The liquid level transmitter transmits the liquid level change electrical signal to the control room for real-time monitoring. The pressure switch plays the role of remotely monitoring the pressure in the liquid storage tank. When the system pressure changes, the pressure signal is transmitted to the control room through the pressure switch to brake the machine pump. When the system needs to replenish the sealing buffer, the liquid adding pump can replenish it in time when the machine pump is working.

[0003] The existing liquid storage tank is in a sealed state, and foreign matter may adhere to the inner wall after long-term use, making it inconvenient to clean. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the existing liquid storage tank, which is in a sealed state, has foreign matter attached to the inner wall after long-term use, and is inconvenient to clean, and proposes a mechanical seal flushing system liquid storage device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liquid reservoir of a mechanical seal flushing system comprises a liquid reservoir body, a liquid inlet pipe and a liquid outlet pipe are arranged on the outer side of the liquid reservoir body, a servo motor is arranged on the top of the liquid reservoir body, a rotating rod is installed on the output shaft of the servo motor, a bottom wall cleaning rod is installed on the bottom end of the rotating rod, the bottom wall cleaning rod is in contact with the bottom inner wall of the liquid reservoir body, a side wall cleaning mechanism is installed on the outer side of the bottom wall cleaning rod, a circular groove is provided on the top of the rotating rod, two water holes are symmetrically provided on the inner wall of the circular groove, a circular box is fixedly installed on the inner wall of the top of the liquid reservoir body, the two water holes are both located inside the circular box, the circular box is connected with a water supply mechanism, two sealing bearings are fixedly installed on the inner wall of the circular box, and the rotating rod is fixedly installed on the inner ring of the sealing bearing.

[0007] Preferably, the water supply mechanism includes a water pump, which is fixedly mounted on the top of the liquid storage tank body, the outlet of the water pump is connected to a water pipe, a solenoid valve is provided on the water pipe, and the water pipe is connected to the round box; the solenoid valve is used to control the closing and opening of the water pipe.

[0008] Preferably, two support blocks are fixedly mounted on the inner wall of the circular groove, and arc-shaped cover plates are rotatably mounted on the two support blocks, the two arc-shaped cover plates cooperate with the two water holes, a notch is provided on the top of the arc-shaped cover plates, end shafts are fixedly mounted on both sides of the support blocks, the two end shafts are rotatably connected to the inner walls of both sides of the notch, a torsion spring is sleeved on the outer side of the end shaft, one end of the torsion spring is fixedly mounted on the inner wall of the notch, and the other end of the torsion spring is fixedly mounted on the support block; the arc-shaped cover plate is used to block the water hole, and the arc-shaped cover plate can be supported by the support of the two end shafts to prevent the clean water from flowing back.

[0009] Preferably, the side wall cleaning mechanism includes an arc-shaped scraper, which is a hollow structure. A plurality of high-pressure nozzles are obliquely arranged on the outer side of the arc-shaped scraper. A transverse tube is connected to the arc-shaped scraper, and the transverse tube is connected to the circular groove. Cleaning water enters the interior of the circular groove through two water holes, enters the arc-shaped scraper through the transverse tube, and then is sprayed out through a plurality of high-pressure nozzles to clean the inner wall of the liquid storage tank body.

[0010] In the utility model, the beneficial effects of the mechanical seal flushing system liquid reservoir are:

[0011] In this solution, liquid can be filled into the liquid storage tank body through the liquid inlet pipe, and the liquid inside the liquid storage tank body can be discharged through the liquid outlet pipe. The servo motor drives the rotating rod to rotate, and the rotating rod rotates through the bottom wall cleaning rod to clean the bottom inner wall of the liquid storage tank body. The bottom wall cleaning rod drives the arc scraper to rotate to clean the inner wall of the liquid storage tank body.

[0012] The water pump fills the round box with clean water through the water pipe. The clean water enters the round groove through two water holes, enters the arc scraper through the transverse pipe, and then is sprayed out through multiple high-pressure nozzles to clean the inner wall of the liquid storage tank body, which is convenient for cleaning the inner wall of the liquid storage tank body.

[0013] The utility model has a simple structure and can conveniently clean the inner wall of the liquid storage tank body by scraping and flushing the bottom and side walls of the liquid storage tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a liquid reservoir for a mechanical seal flushing system proposed by the utility model;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the arc scraper and multiple high-pressure nozzles proposed by the utility model;

[0016] Figure 3 This is a schematic structural diagram of part A of a liquid reservoir of a mechanical seal flushing system proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the arc-shaped cover plate and the support block proposed in the utility model.

[0018] In the figure: 1. Liquid storage tank body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Rotating rod; 5. Bottom wall cleaning rod; 6. Arc scraper; 7. High-pressure nozzle; 8. Horizontal pipe; 9. Servo motor; 10. Water pump; 11. Water pipe; 12. Solenoid valve; 13. Round box; 14. Round groove; 15. Sealed bearing; 16. Water hole; 17. Arc cover plate; 18. Support block; 19. Notch; 20. End shaft; 21. Torsion spring; 22. Pressure measuring tube; 23. Pressure gauge. DETAILED DESCRIPTION

[0019] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0020] Embodiment 1

[0021] Reference Figure 1-Figure 4A liquid reservoir of a mechanical seal flushing system comprises a liquid reservoir body 1, a liquid inlet pipe 2 and a liquid outlet pipe 3 are arranged on the outer side of the liquid reservoir body 1, a servo motor 9 is arranged on the top of the liquid reservoir body 1, a rotating rod 4 is installed on the output shaft of the servo motor 9, a bottom wall cleaning rod 5 is installed on the bottom end of the rotating rod 4, the bottom wall cleaning rod 5 is in contact with the bottom inner wall of the liquid reservoir body 1, a side wall cleaning mechanism is installed on the outer side of the bottom wall cleaning rod 5, a circular groove 14 is opened on the top of the rotating rod 4, two water holes 16 are symmetrically opened on the inner wall of the circular groove 14, a round box 13 is fixedly installed on the inner wall of the top of the liquid reservoir body 1, the two water holes 16 are both located inside the round box 13, the round box 13 is connected with a water supply mechanism, two sealing bearings 15 are fixedly installed on the inner wall of the round box 13, and the rotating rod 4 is fixedly installed on the inner ring of the sealing bearing 15.

[0022] In this embodiment, the water supply mechanism includes a water pump 10, which is fixedly installed on the top of the liquid storage tank body 1. The outlet of the water pump 10 is connected to a water pipe 11, and a solenoid valve 12 is provided on the water pipe 11. The water pipe 11 is connected to the round box 13; the solenoid valve 12 is used to control the closing and opening of the water pipe 11.

[0023] In this embodiment, two support blocks 18 are fixedly installed on the inner wall of the circular groove 14, and arc-shaped cover plates 17 are rotatably installed on the two support blocks 18. The two arc-shaped cover plates 17 cooperate with the two water holes 16. A notch 19 is opened on the top of the arc-shaped cover plate 17, and end shafts 20 are fixedly installed on both sides of the support block 18. The two end shafts 20 are rotatably connected to the inner walls of the two sides of the notch 19, and a torsion spring 21 is sleeved on the outer side of the end shaft 20. One end of the torsion spring 21 is fixedly installed on the inner wall of the notch 19, and the other end of the torsion spring 21 is fixedly installed on the support block 18; the arc-shaped cover plate 17 is used to block the water hole 16. The arc-shaped cover plate 17 can be supported by the support of the two end shafts 20 to prevent the clean water from flowing back.

[0024] In this embodiment, the side wall cleaning mechanism includes an arc-shaped scraper 6, which is a hollow structure. A plurality of high-pressure nozzles 7 are obliquely arranged on the outer side of the arc-shaped scraper 6. A transverse tube 8 is connected to the arc-shaped scraper 6, and the transverse tube 8 is connected to the circular groove 14. Cleaning water enters the interior of the circular groove 14 through two water holes 16, enters the arc-shaped scraper 6 through the transverse tube 8, and then is sprayed out through a plurality of high-pressure nozzles 7 to clean the inner wall of the liquid storage tank body 1.

[0025] Working principle: when in use, turn on the power supply and PLC controller, the PLC controller can perform electrical control, which is the existing technology and will not be described here in detail. Liquid can be filled into the liquid storage tank body 1 through the liquid inlet pipe 2, and the liquid inside the liquid storage tank body 1 can be discharged through the liquid outlet pipe 3. The servo motor 9 drives the rotating rod 4 to rotate, and the rotating rod 4 rotates through the bottom wall cleaning rod 5 to clean the bottom inner wall of the liquid storage tank body 1. The bottom wall cleaning rod 5 drives the arc scraper 6 to rotate to clean the inner wall of the liquid storage tank body 1. At the same time, the water pump 10 works to fill the round box 13 with clean water through the water pipe 11. The clean water enters the interior of the circular groove 14 through the two water holes 16, and enters the arc scraper 6 through the transverse pipe 8. Then, it is sprayed out through multiple high-pressure nozzles 7 to clean the inner wall of the liquid storage tank body 1, which is convenient for cleaning the inner wall of the liquid storage tank body 1.

[0026] Embodiment 2

[0027] The difference between Example 2 and Example 1 is that: the round box 13 is connected to a pressure measuring tube 22, and the pressure measuring tube 22 is connected to a pressure gauge 23. The water pressure inside the round box 13 can be monitored by the cooperation between the pressure measuring tube 22 and the pressure gauge 23. This application includes all the structural shapes, sizes and materials of Example 1, and they can be selected and adjusted to meet specific usage conditions. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0028] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A liquid reservoir for a mechanical seal flushing system, comprising a liquid reservoir body (1), wherein a liquid inlet pipe (2) and a liquid outlet pipe (3) are arranged on the outer side of the liquid reservoir body (1), characterized in that: A servo motor (9) is arranged on the top of the liquid storage tank body (1), a rotating rod (4) is installed on the output shaft of the servo motor (9), a bottom wall cleaning rod (5) is installed on the bottom end of the rotating rod (4), the bottom wall cleaning rod (5) is in contact with the bottom inner wall of the liquid storage tank body (1), a side wall cleaning mechanism is installed on the outer side of the bottom wall cleaning rod (5), a circular groove (14) is opened on the top of the rotating rod (4), two water holes (16) are symmetrically opened on the inner wall of the circular groove (14), a circular box (13) is fixedly installed on the inner wall of the top of the liquid storage tank body (1), the two water holes (16) are both located inside the circular box (13), and the circular box (13) is connected to a water supply mechanism.

2. A mechanical seal flushing system liquid reservoir according to claim 1, characterized in that: The water supply mechanism comprises a water pump (10), the water pump (10) is fixedly mounted on the top of the liquid storage tank body (1), the outlet of the water pump (10) is connected to a water pipe (11), a solenoid valve (12) is arranged on the water pipe (11), and the water pipe (11) is connected to a round box (13).

3. A mechanical seal flushing system liquid reservoir according to claim 1, characterized in that: Two support blocks (18) are fixedly mounted on the inner wall of the circular groove (14), and arc-shaped cover plates (17) are rotatably mounted on the two support blocks (18). The two arc-shaped cover plates (17) are matched with the two water holes (16).

4. A mechanical seal flushing system liquid reservoir according to claim 3, characterized in that: A notch (19) is provided at the top of the arc-shaped cover plate (17), and end shafts (20) are fixedly mounted on both sides of the support block (18), and the two end shafts (20) are rotatably connected to the inner walls on both sides of the notch (19).

5. A mechanical seal flushing system liquid reservoir according to claim 4, characterized in that: A torsion spring (21) is sleeved on the outer side of the end shaft (20), one end of the torsion spring (21) is fixedly mounted on the inner wall of the notch (19), and the other end of the torsion spring (21) is fixedly mounted on the support block (18).

6. A mechanical seal flushing system liquid reservoir according to claim 1, characterized in that: The side wall cleaning mechanism comprises an arc-shaped scraper (6), which is a hollow structure. A plurality of high-pressure nozzles (7) are obliquely arranged on the outer side of the arc-shaped scraper (6). A transverse pipe (8) is connected to the arc-shaped scraper (6), and the transverse pipe (8) is connected to the circular groove (14).

7. A mechanical seal flushing system liquid reservoir according to claim 1, characterized in that: Two sealing bearings (15) are fixedly mounted on the inner wall of the round box (13), and the rotating rod (4) is fixedly mounted on the inner ring of the sealing bearing (15).

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