Mechanical seal flushing device for hydrogenation feed pump

Abstract

The utility model discloses a hydrogenation feed pump mechanical seal flushing device, which relates to the technical field of mechanical seal flushing and comprises a soaking water tank, a plurality of rotating rollers rotatably mounted in the soaking water tank, a conveying belt arranged in the soaking water tank, a filter screen plate fixedly mounted at the bottom end in the soaking water tank, and a mounting frame fixedly mounted at the top end of the soaking water tank. The flushing assembly comprises a flushing main pipe fixedly installed at the inner bottom end of the installation frame, the bottom end of the flushing main pipe communicates with a plurality of high-pressure flushing nozzles, a high-pressure pump is fixedly installed at the top end of the installation frame and communicates with a communicating pipe, and the other end of the communicating pipe penetrates into the installation frame. According to the utility model, the disturbance component is arranged, the mechanical seal is arranged on the first horizontal section, and the fixed air pump is started, so that external air enters the air outlet main pipe through the air inlet pipe, then is conveyed to the air outlet pipe and is discharged from the air outlet hole, the disturbance to a water source is realized, and the soaking effect on the mechanical seal is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seal flushing, in particular to a mechanical seal flushing device for a hydrogenation feed pump. Background Art

[0002] Hydrogenation feed pump is an industrial pump specially designed for use in the hydroprocessing process. Its main function is to transport raw oil (such as fuel oil, lubricating oil or other high-viscosity liquids) to the hydrogenation reactor under high pressure. The characteristics and design of this type of pump enable it to adapt to high temperature, high pressure and potentially corrosive working environments, ensuring the smooth progress of the hydrogenation reaction process.

[0003] A mechanical seal is a shaft sealing device for rotating machinery, such as centrifugal pumps, centrifuges, reactors, compressors and other equipment. A mechanical seal is a device that prevents fluid leakage by maintaining contact and relative sliding under the action of fluid pressure and the elastic force or magnetic force of a compensation mechanism and the cooperation of an auxiliary seal.

[0004] Application number: CN202021999707.5 discloses a mechanical seal flushing structure, including a baffle and a water collecting tank, a water collecting tank is arranged at the upper end axis of the baffle, the baffle and the water collecting tank are fixedly connected by bolts, a connecting pipe is arranged at the upper end of the water collecting tank, a circulating pump is arranged at the bottom end of the connecting pipe, and the circulating pump is electrically connected to a power supply. In the utility model, a filtering mechanism is arranged inside the water collecting tank, so that the water source after flushing can be filtered through the filtering mechanism inside the water collecting tank to filter out larger impurities in the water source, and the filtered water source enters the interior of the water collecting tank through the circulating pump to achieve the recycling of the water source, and the filtering mechanism can be conveniently installed and disassembled through the first vertical rod and the second vertical rod, so that the filtering mechanism can be replaced more conveniently.

[0005] However, when the above device is used, the mechanical seal is directly flushed through the high-pressure nozzle, but the mechanical seal is easily blocked by debris during crude oil transportation, which can easily cause damage to the mechanical seal, and simple flushing cannot be thoroughly cleaned. Therefore, it is necessary to propose a hydrogenation feed pump mechanical seal flushing device. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a mechanical seal flushing device for a hydrogenation feed pump.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A mechanical seal flushing device for a hydrogenation feed pump comprises a soaking water tank, a plurality of rotating rollers are rotatably mounted in the soaking water tank, a conveying belt is arranged in the soaking water tank, a filter screen is fixedly mounted at the bottom end of the soaking water tank, a disturbance component is arranged between the bottom end of the soaking water tank and the filter screen, a mounting frame is fixedly mounted at the top end of the soaking water tank, and a flushing component is arranged in the mounting frame;

[0009] The flushing assembly includes a flushing main pipe fixedly installed at the bottom end of the mounting frame, the bottom end of the flushing main pipe is connected to a plurality of high-pressure flushing nozzles, a high-pressure pump is fixedly installed at the top of the mounting frame, the high-pressure pump is connected to a connecting pipe, the other end of the connecting pipe passes through the mounting frame, the connecting pipe is connected to the flushing main pipe, and the high-pressure pump is connected to a water pipe connected to an external water source.

[0010] It is used to flush the mechanical seal after immersion. Start the high-pressure pump to transport external water to the flushing main pipe through the water pipe and the connecting pipe, so that the water source is sprayed out from the high-pressure flushing nozzle to flush the mechanical seal.

[0011] Preferably, a rotating pressure roller is symmetrically mounted on the inner side wall of the immersion water tank, and the outer side wall of the rotating pressure roller is in contact with the outer side wall of the conveyor belt. The rotating roller and the rotating pressure roller divide the conveyor belt into a first horizontal section, an inclined section, and a second horizontal section. The first horizontal section is immersed in the water in the immersion water tank, and the second horizontal section is arranged above the water surface in the immersion water tank. The second horizontal section is arranged in the mounting frame;

[0012] The rotating roller is arranged inside the conveying belt, and the conveying belt is driven to move when the rotating roller rotates. A plurality of through holes are evenly and equidistantly arranged on the conveying belt, and a blocking rubber strip is symmetrically fixedly installed on the outer wall of the conveying belt close to the inner wall of the soaking water tank;

[0013] It is used to facilitate the transportation of mechanical seals. The mechanical seals are placed in the first horizontal section and immersed in water. The through holes are penetrated to facilitate the movement of the mechanical seals. The inclination angle of the inclined section can be adjusted according to actual conditions. The mechanical seals are flushed after being transported to the second horizontal section.

[0014] Preferably, the disturbance assembly comprises a plurality of mounting parts fixedly mounted at the bottom end of the immersion water tank, an air outlet main pipe is fixedly mounted between the plurality of mounting parts, the air outlet main pipe is connected to a plurality of air outlet pipes, and a plurality of air outlet holes are evenly and equidistantly opened on the air outlet pipe;

[0015] A fixed air pump is fixedly installed on the outer wall of the soaking water tank, one end of the air outlet pipe penetrates outside the soaking water tank, the end of the air outlet pipe is connected to the fixed air pump, and the fixed air pump is connected to an air inlet pipe;

[0016] Used for immersion treatment of mechanical seals, the mechanical seals are placed on the first horizontal section, and the fixed air pump is started to allow external air to enter the main air outlet pipe through the air inlet pipe, and then be transported to the air outlet pipe, and then discharged from the air outlet hole, thereby disturbing the water source and improving the immersion effect on the mechanical seals.

[0017] Preferably, the outer side wall of the soaking water tank is connected to a drain pipe, an electromagnetic gate valve is fixedly installed on the drain pipe, and a control panel is fixedly installed on the outer side wall of the soaking water tank.

[0018] The utility model has the following beneficial effects:

[0019] 1. By setting up a disturbance component, the mechanical seal is placed on the first horizontal section, and the fixed air pump is started, so that the outside air enters the main air outlet pipe through the air inlet pipe, and then is transported to the air outlet pipe, and then discharged from the air outlet hole, so as to disturb the water source and improve the immersion effect of the mechanical seal.

[0020] 2. By setting up the flushing component and starting the high-pressure pump, the external water source is transported to the flushing main pipe through the water pipe and the connecting pipe, so that the water source is sprayed out from the high-pressure flushing nozzle to flush the mechanical seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the external structure of the mechanical seal flushing device for the hydrogenation feed pump proposed by the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the immersion water tank of the utility model;

[0023] Figure 3 It is a schematic diagram of the top view of the disturbance component of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the flushing component of the utility model.

[0025] In the figure: 1. Soaking water tank; 2. Rotating roller; 3. Conveying belt; 31. First horizontal section; 32. Inclined section; 33. Second horizontal section; 34. Through-hole; 35. Blocking rubber strip; 4. Filter screen; 5. Disturbance component; 51. Mounting part; 52. Air outlet pipe; 53. Air outlet pipe; 54. Air outlet hole; 55. Fixed air pump; 56. Air inlet pipe; 6. Mounting frame; 7. Flushing component; 71. Flushing pipe; 72. High-pressure flushing nozzle; 73. High-pressure pump; 74. Connecting pipe; 75. Water pipe; 8. Rotating pressure roller; 9. Drain pipe; 10. Solenoid valve; 11. Control panel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Reference Figure 1-4 The mechanical seal flushing device of the hydrogenation feed pump comprises a soaking water tank 1, a plurality of rotating rollers 2 are rotatably installed in the soaking water tank 1, a conveying belt 3 is arranged in the soaking water tank 1, a filter screen plate 4 is fixedly installed at the bottom end of the soaking water tank 1, a disturbance component 5 is arranged between the bottom end of the soaking water tank 1 and the filter screen plate 4, a mounting frame 6 is fixedly installed at the top of the soaking water tank 1, and a flushing component 7 is arranged in the mounting frame 6;

[0029] The flushing assembly 7 includes a flushing main pipe 71 fixedly installed at the bottom end of the mounting frame 6, the bottom end of the flushing main pipe 71 is connected to a plurality of high-pressure flushing nozzles 72, a high-pressure pump 73 is fixedly installed at the top of the mounting frame 6, the high-pressure pump 73 is connected to a connecting pipe 74, the other end of the connecting pipe 74 passes through the mounting frame 6, the connecting pipe 74 is connected to the flushing main pipe 71, and the high-pressure pump 73 is connected to a water supply pipe 75 connected to an external water source.

[0030] A rotating pressure roller 8 is symmetrically installed on the inner wall of the immersion water tank 1, and the outer wall of the rotating pressure roller 8 is in contact with the outer wall of the conveyor belt 3. The rotating roller 2 and the rotating pressure roller 8 divide the conveyor belt 3 into a first horizontal section 31, an inclined section 32 and a second horizontal section 33. The first horizontal section 31 is immersed in the water in the immersion water tank 1, and the second horizontal section 33 is arranged above the water surface in the immersion water tank 1. The second horizontal section 33 is arranged in the mounting frame 6.

[0031] The rotating roller 2 is arranged in the conveying belt 3. When the rotating roller 2 rotates, the conveying belt 3 is driven to move. A plurality of through holes 34 are evenly and equidistantly arranged on the conveying belt 3. The outer wall of the conveying belt 3 is symmetrically fixed with a blocking rubber strip 35 close to the inner wall of the immersion water tank 1. The conveying belt 3 is driven by an external power source.

[0032] The disturbance component 5 includes a plurality of mounting parts 51 fixedly mounted at the bottom end of the immersion water tank 1, an air outlet main pipe 52 is fixedly mounted between the plurality of mounting parts 51, the air outlet main pipe 52 is connected to a plurality of air outlet pipes 53, and a plurality of air outlet holes 54 are evenly and equidistantly opened on the air outlet pipe 53.

[0033] A fixed air pump 55 is fixedly installed on the outer wall of the soaking water tank 1 , one end of the air outlet pipe 52 passes through the outside of the soaking water tank 1 , the end of the air outlet pipe 52 is connected to the fixed air pump 55 , and the fixed air pump 55 is connected to an air inlet pipe 56 .

[0034] The outer wall of the soaking water tank 1 is connected to a drain pipe 9, on which an electromagnetic gate valve 10 is fixedly installed. The outer wall of the soaking water tank 1 is fixedly installed with a control panel 11, which is electrically connected to the fixed air pump 55, the high-pressure pump 73 and the electromagnetic gate valve 10.

[0035] It should be noted that the electric control technology of the control panel 11 is an existing mature technology and is not the key technical point of the present utility model, so it will not be elaborated here.

[0036] In the utility model, the mechanical seal is placed on the first horizontal section 31, and the fixed air pump 55 is started, so that the outside air enters the air outlet main pipe 52 through the air inlet pipe 56, and then is transported to the air outlet pipe 53, and then discharged from the air outlet hole 54, so as to disturb the water source and improve the soaking effect of the mechanical seal. When the mechanical seal is transported to the second horizontal section 33, the high-pressure pump 73 is started to transport the outside water source to the flushing main pipe 71 through the water supply pipe 75 and the connecting pipe 74, so that the water source is sprayed from the high-pressure flushing nozzle 72 to flush the mechanical seal.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical seal flushing device for a hydrogenation feed pump, comprising a soaking water tank (1), characterized in that: A plurality of rotating rollers (2) are rotatably mounted in the soaking water tank (1), a conveying belt (3) is arranged in the soaking water tank (1), a filter screen (4) is fixedly mounted at the bottom end of the soaking water tank (1), a disturbance component (5) is arranged between the bottom end of the soaking water tank (1) and the filter screen (4), a mounting frame (6) is fixedly mounted at the top end of the soaking water tank (1), and a flushing component (7) is arranged in the mounting frame (6); The flushing assembly (7) comprises a flushing main pipe (71) fixedly mounted at the bottom end of the mounting frame (6); the bottom end of the flushing main pipe (71) is connected to a plurality of high-pressure flushing nozzles (72); a high-pressure pump (73) is fixedly mounted at the top end of the mounting frame (6); the high-pressure pump (73) is connected to a connecting pipe (74); the other end of the connecting pipe (74) passes through the mounting frame (6); the connecting pipe (74) is connected to the flushing main pipe (71); and the high-pressure pump (73) is connected to a water supply pipe (75) connected to an external water source.

2. The mechanical seal flushing device for a hydrogenation feed pump according to claim 1, characterized in that: A rotating pressure roller (8) is symmetrically mounted on the inner wall of the immersion water tank (1); the outer wall of the rotating pressure roller (8) is in contact with the outer wall of the conveyor belt (3); the rotating roller (2) and the rotating pressure roller (8) divide the conveyor belt (3) into a first horizontal section (31), an inclined section (32) and a second horizontal section (33); the first horizontal section (31) is immersed in the water in the immersion water tank (1); the second horizontal section (33) is arranged above the water surface in the immersion water tank (1); and the second horizontal section (33) is arranged in the mounting frame (6).

3. The mechanical seal flushing device for a hydrogenation feed pump according to claim 1, characterized in that: The rotating roller (2) is arranged inside the conveying belt (3), and when the rotating roller (2) rotates, it drives the conveying belt (3) to move. The conveying belt (3) is evenly and equidistantly provided with a plurality of through holes (34). The outer wall of the conveying belt (3) is symmetrically fixedly installed with a blocking rubber strip (35) close to the inner wall of the soaking water tank (1).

4. The mechanical seal flushing device for a hydrogenation feed pump according to claim 1, characterized in that: The disturbance component (5) comprises a plurality of mounting parts (51) fixedly mounted at the bottom end of the soaking water tank (1), an air outlet main pipe (52) fixedly mounted between the plurality of mounting parts (51), the air outlet main pipe (52) being connected to a plurality of air outlet pipes (53), and a plurality of air outlet holes (54) being evenly and equidistantly formed on the air outlet pipe (53).

5. The mechanical seal flushing device for a hydrogenation feed pump according to claim 4, characterized in that: A fixed air pump (55) is fixedly mounted on the outer wall of the soaking water tank (1); one end of the air outlet pipe (52) extends outside the soaking water tank (1); the end of the air outlet pipe (52) is connected to the fixed air pump (55); and the fixed air pump (55) is connected to an air inlet pipe (56).

6. The mechanical seal flushing device for a hydrogenation feed pump according to claim 1, characterized in that: The outer wall of the soaking water tank (1) is connected to a drainage pipe (9), an electromagnetic gate valve (10) is fixedly mounted on the drainage pipe (9), and a control panel (11) is fixedly mounted on the outer wall of the soaking water tank (1).

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