Vertical pump with double-end-face sealing self-cooling structure

Abstract

The utility model discloses a vertical pump with a double-end-face sealing self-cooling structure, which comprises a vertical pump body, a mounting plate is fixedly mounted on the vertical pump body, a miniature water pump is fixedly mounted on the mounting plate, two ends of the miniature water pump are fixedly connected with liquid outlet pipes, a filter box is fixedly mounted on the mounting plate, and a water outlet pipe is fixedly mounted on the filter box. A box cover is detachably installed on the filter box, the box cover is communicated with the liquid outlet pipe, a filter screen is arranged in the filter box, a heat dissipation pipe is arranged on one side of the filter box in a communicated mode, and a liquid inlet pipe is fixedly connected to one end of the heat dissipation pipe. According to the vertical pump, chippings in cooling oil liquid are separated through the filter screen, the chippings are collected in the filter screen, the filtered chippings enter the sealing piece through the liquid inlet pipe to be recycled, the filter screen removes the chippings in the circulating cooling oil liquid, and the situation that the chippings are accumulated to block a pipeline and affect use of the vertical pump body is avoided.

Description

Technical Field

[0001] The utility model relates to the field of vertical pump equipment, and particularly to a vertical pump with a double-end face seal self-cooling structure. Background Technique

[0002] A vertical pump is a vertically placed water pump. When installed, it is perpendicular to the ground and does not require a horizontal installation foundation. It is composed of components such as a pump body, an impeller, a bearing, a seal, a coupling, and a motor.

[0003] A double-end face seal vertical pump is a specially designed vertical pump. Its main feature lies in its unique double-end face mechanical seal structure. This design enables the pump to have higher sealing performance and longer service life in specific application scenarios.

[0004] During the use of a double-end face seal vertical pump, heat is generated by the friction between the dynamic ring and the static ring in the double-end face seal. The accumulation of heat causes thermal deformation and thermal stress of the seal, affecting the service life of the seal. Commonly, cooling oil is introduced into the seal cavity, and the heat generated by the friction of the seal surface is carried away by the flowing circulating cooling oil. However, the circulating cooling oil contains debris from the friction loss of the seal. The accumulation of debris will cause blockage of the cooling oil pipe, affecting the normal use of the vertical pump. Content of the Utility Model

[0005] Aiming at the technical problem that the existing circulating cooling oil contains debris from the friction loss of the seal, and the accumulation of debris will cause blockage of the cooling oil pipe, affecting the normal use of the vertical pump, the utility model provides a vertical pump with a double-end face seal self-cooling structure.

[0006] The technical solution adopted by the utility model is as follows: it includes a vertical pump body, an installation plate is fixedly installed on the vertical pump body, a micro water pump is fixedly installed on the installation plate, liquid outlet pipes are fixedly connected to both ends of the micro water pump, a filter box is fixedly installed on the installation plate, a box cover is detachably installed on the filter box, the box cover is communicated with the liquid outlet pipe, a filter screen is arranged in the filter box, a heat dissipation pipe is communicated and arranged on one side of the filter box, and an inlet pipe is fixedly connected to one end of the heat dissipation pipe.

[0007] Furthermore, a groove is opened at the upper end of the filter box, a pressing edge is arranged at the upper end of the filter screen, the pressing edge is adapted to the groove, and fixing bolts are threadedly connected to the box cover.

[0008] By adopting the above technical solution, it is convenient to clean and replace the filter screen.

[0009] Furthermore, an installation frame is fixedly connected to the installation plate, a fan is fixedly installed in the installation frame, and the heat dissipation pipe is fixedly installed on one side of the installation frame.

[0010] By adopting the above technical solution, the cooling of the cooling oil is improved.

[0011] Furthermore, a pump shaft is arranged inside the vertical pump body. An axle sleeve is fixedly connected to the outside of the pump shaft. A moving ring is fixedly installed on the axle sleeve. Two fixed seats are slidably installed on the axle sleeve. The two fixed seats are arranged on both sides of the moving ring. A static ring is fixedly installed on one side of the fixed seat. The static ring abuts against the moving ring.

[0012] By adopting the above technical solution, double-ended mechanical seal is achieved.

[0013] Furthermore, a mounting block is rotatably installed on the outside of the pump shaft. The mounting block is fixedly connected to the inside of the vertical pump body. A cavity is formed in the mounting block. A spring is fixedly installed on one side of the fixed seat. One end of the spring is fixedly connected to the inner wall of the mounting block. A sealing ring is arranged between the fixed seat and the mounting block.

[0014] By adopting the above technical solution, the double-ended mechanical seal effect is improved.

[0015] Furthermore, a liquid outlet hole and a liquid inlet hole are formed in the circumferential surface of the mounting block. The liquid outlet pipe is fixedly installed in the liquid outlet hole. The liquid inlet pipe is fixedly installed in the liquid inlet hole.

[0016] By adopting the above technical solution, the cooling oil circulates to reduce the temperature of the seal and filter the debris in the cooling oil.

[0017] The beneficial effects of the present utility model are as follows: The cooling oil circulates through the cooperation of the micro water pump, the liquid outlet pipe and the liquid inlet pipe, ensuring the effects of blocking, lubricating and cooling the contact surface between the moving ring and the static ring by the cooling oil. The debris in the cooling oil is separated by the filter screen, and the debris is collected in the filter screen. The filtered cooling oil enters the seal through the liquid inlet pipe for recycling. The filter screen removes the debris in the circulating cooling oil, avoiding the blockage of the pipeline caused by the accumulation of debris and affecting the use of the vertical pump body;

[0018] Through the cooperation of the pressing edge of the filter screen and the groove, the fixing effect of the filter screen in the filter box is improved, and the stability during the use of the device is improved. The detachable connection between the filter box and the box cover is realized through the fixing bolts, which is convenient to take out and replace the filter screen in the filter box when too much debris accumulates in the filter screen, improving the practicability of the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a structural schematic diagram of the filter box and the mounting plate in the present utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter box in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the dynamic ring and the static ring in the utility model.

[0023] The numbers in the figure are: 1. Vertical pump body; 2. Mounting plate; 3. Liquid outlet pipe; 4. Micro water pump; 5. Filter box; 6. Heat dissipation pipe; 7. Liquid inlet pipe; 8. Mounting frame; 9. Fan; 10. Box cover; 11. Filter; 12. Fixing bolt; 13. Groove; 14. Pressing edge; 15. Pump shaft; 16. Bushing; 17. Moving ring; 18. Fixed seat; 19. Static ring; 20. Spring; 21. Cavity; 22. Liquid outlet hole; 23. Liquid inlet hole; 24. Sealing ring; 25. Mounting block. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following is combined with Figures 1-4 The utility model is further described.

[0027] In order to solve the problems existing in the background technology, the present application proposes the following technical scheme: it includes a vertical pump body 1, a mounting plate 2 is fixedly installed on the vertical pump body 1, a micro water pump 4 is fixedly installed on the mounting plate 2, both ends of the micro water pump 4 are fixedly connected with liquid outlet pipes 3, a filter box 5 is fixedly installed on the mounting plate 2, a box cover 10 is detachably installed on the filter box 5, the box cover 10 is connected with the liquid outlet pipe 3, a filter screen 11 is arranged in the filter box 5, a heat dissipation pipe 6 is connected to one side of the filter box 5, and a liquid inlet pipe 7 is fixedly connected to one end of the heat dissipation pipe 6.

[0028] There is cooling oil flowing in a cycle through the liquid outlet pipe 3 and the liquid inlet pipe 7. The cooling oil has the effects of plugging, lubricating, and cooling the double-end face seal. The micro water pump 4 provides power for the cyclic flow of the cooling oil. The cooling oil containing debris from seal wear enters the filter box 5 through the liquid outlet pipe 3. The filter screen 11 separates the debris in the cooling oil, causing the debris to be collected in the filter screen 11. The filtered oil then enters the seal through the liquid inlet pipe 7 for recycling. The setting of the filter screen 11 can remove the debris in the circulating cooling oil, preventing the accumulation of debris from blocking the pipeline and affecting the use of the vertical pump body 1.

[0029] Furthermore, a groove 13 is provided at the upper end of the filter box 5. A pressing edge 14 is provided at the upper end of the filter screen 11, and the pressing edge 14 is adapted to the groove 13. A fixing bolt 12 is threadedly connected to the box cover 10.

[0030] The detachable installation between the filter box 5 and the box cover 10 is realized through the fixing bolt 12, which facilitates taking out the filter screen 11 in the filter box 5 for replacement and cleaning when there is too much debris accumulated in the filter screen 11. When the filter screen 11 is installed, the pressing edge 14 is placed in the groove 13. A convex block adapted to the groove 13 is provided below the box cover 10. When the box cover 10 is fixed to the filter box 5, the convex block presses the pressing edge 14, thereby improving the fixing effect of the filter screen 11 in the filter box 5 and enhancing the stability during the use of the device.

[0031] Furthermore, a mounting frame 8 is fixedly connected to the mounting plate 2. A fan 9 is fixedly installed in the mounting frame 8. The heat dissipation pipe 6 is fixedly installed on one side of the mounting frame 8.

[0032] The heat dissipation pipe 6 is arranged in a serpentine shape, increasing the time for the cooling oil to pass through the heat dissipation pipe 6, thereby enhancing the cooling effect on the cooling oil. The wind generated by the fan 9 can accelerate the dissipation of the heat of the cooling oil in the heat dissipation pipe 6, thus improving the cooling effect of the cooling oil and further enhancing the cooling effect of the cooling oil on the seal, achieving the self-cooling effect of the double-end face seal.

[0033] Furthermore, a pump shaft 15 is arranged inside the vertical pump body 1. A shaft sleeve 16 is fixedly connected to the outside of the pump shaft 15. A dynamic ring 17 is fixedly installed on the shaft sleeve 16. Two fixed seats 18 are slidably installed on the shaft sleeve 16. The two fixed seats 18 are arranged on both sides of the dynamic ring 17. A static ring 19 is fixedly installed on one side of the fixed seat 18, and the static ring 19 abuts against the dynamic ring 17.

[0034] When the vertical pump body 1 starts, the pump shaft 15 drives the moving ring 17 to rotate. The moving ring 17 contacts the stationary ring 19. Due to a certain pressure difference between the moving ring 17 and the stationary ring 19, the cooling oil enters the sealing gap between the moving ring 17 and the stationary ring 19, forming a sealed environment. The cooling oil maintains an extremely thin liquid film in the extremely small gap between the end faces of the moving ring 17 and the stationary ring 19, thereby achieving the purpose of sealing and effectively preventing the leakage of the fluid in the vertical pump body 1.

[0035] Furthermore, an installation block 25 is rotatably installed outside the pump shaft 15. The installation block 25 is fixedly connected to the inside of the vertical pump body 1. A cavity 21 is provided in the installation block 25. A spring 20 is fixedly installed on one side of the fixed seat 18. One end of the spring 20 is fixedly connected to the inner wall of the installation block 25. A sealing ring 24 is provided between the fixed seat 18 and the installation block 25.

[0036] A plurality of springs 20 are installed on one side of the fixed seat 18. The plurality of springs 20 are arranged in a ring and fixedly connected to the inside of the installation block 25. The springs 20 apply a compensating force to the fixed seat 18 in the direction of the moving ring 17, ensuring that the end faces of the stationary ring 19 and the moving ring 17 remain in contact and improving the stability of the sealing member during use.

[0037] Furthermore, a liquid outlet hole 22 and a liquid inlet hole 23 are provided on the circumferential surface of the installation block 25. The liquid outlet pipe 3 is fixedly installed in the liquid outlet hole 22, and the liquid inlet pipe 7 is fixedly installed in the liquid inlet hole 23.

[0038] The liquid outlet hole 22 and the liquid inlet hole 23 are both communicated with the cavity 21. The micro water pump 4 sends the cooling oil carrying the heat and debris generated by the friction between the moving ring 17 and the stationary ring 19 into the filter box 5 through the liquid outlet hole 22 and the liquid outlet pipe 3. The filter net 11 filters and separates the debris. The separated cooling oil enters the heat dissipation pipe 6. The heat dissipation pipe 6 is arranged in a snake shape and cooperates with the fan 9 to dissipate the heat carried in the cooling oil, reducing the temperature of the cooling oil. The cooled cooling oil enters the cavity 21 through the liquid inlet pipe 7 and the liquid inlet hole 23, and cools the moving ring 17 and the stationary ring 19 again, realizing the circulating flow of the cooling oil.

[0039] The specific operation and use are as follows: When the vertical pump body 1 starts, the pump shaft 15 drives the moving ring 17 to rotate. The moving ring 17 contacts the stationary ring 19. Due to a certain pressure difference between the moving ring 17 and the stationary ring 19, the cooling oil enters the sealing gap between the moving ring 17 and the stationary ring 19, forming a sealed environment. The cooling oil maintains an extremely thin liquid film in the extremely small gap between the end faces of the moving ring 17 and the stationary ring 19, thereby achieving the purpose of sealing. The micro water pump 4 sends the cooling oil carrying the heat and debris generated by the friction between the moving ring 17 and the stationary ring 19 into the filter box 5 through the liquid outlet hole 22 and the liquid outlet pipe 3. The filter screen 11 filters and separates the debris. The separated cooling oil enters the heat dissipation pipe 6. The heat dissipation pipe 6 is arranged in a snake shape and cooperates with the fan 9 to dissipate the heat carried in the cooling oil, reducing the temperature of the cooling oil. The cooled cooling oil enters the cavity 21 through the liquid inlet pipe 7 and the liquid inlet hole 23, and cools the moving ring 17 and the stationary ring 19 again, realizing the circulating flow of the cooling oil.

[0040] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vertical pump with a double-end seal self-cooling structure, characterized in that: The invention comprises a vertical pump body (1), a mounting plate (2) being fixedly mounted on the vertical pump body (1), a micro water pump (4) being fixedly mounted on the mounting plate (2), both ends of the micro water pump (4) being fixedly connected to a liquid outlet pipe (3), a filter box (5) being fixedly mounted on the mounting plate (2), a box cover (10) being detachably mounted on the filter box (5), the box cover (10) being connected to the liquid outlet pipe (3), a filter screen (11) being arranged in the filter box (5), a heat dissipation pipe (6) being connected to one side of the filter box (5), and a liquid inlet pipe (7) being fixedly connected to one end of the heat dissipation pipe (6).

2. A vertical pump with a double-end seal self-cooling structure according to claim 1, characterized in that: The filter box (5) has a groove (13) at its upper end, the filter screen (11) has a pressing edge (14) at its upper end, the pressing edge (14) is matched with the groove (13), and the box cover (10) is threadedly connected with a fixing bolt (12).

3. A vertical pump with a double-end seal self-cooling structure according to claim 2, characterized in that: The mounting plate (2) is fixedly connected to a mounting frame (8), a fan (9) is fixedly mounted in the mounting frame (8), and the heat dissipation pipe (6) is fixedly mounted on one side of the mounting frame (8).

4. A vertical pump with a double-end seal self-cooling structure according to claim 3, characterized in that: A pump shaft (15) is arranged inside the vertical pump body (1), and a shaft sleeve (16) is fixedly connected to the outside of the pump shaft (15). A moving ring (17) is fixedly mounted on the shaft sleeve (16), and two groups of fixing seats (18) are slidably mounted on the shaft sleeve (16). The two groups of fixing seats (18) are arranged on both sides of the moving ring (17), and a stationary ring (19) is fixedly mounted on one side of the fixing seat (18), and the stationary ring (19) is in contact with the moving ring (17).

5. A vertical pump with a double-end seal self-cooling structure according to claim 4, characterized in that: A mounting block (25) is rotatably mounted on the outside of the pump shaft (15), the mounting block (25) is fixedly connected to the inside of the vertical pump body (1), a cavity (21) is provided in the mounting block (25), a spring (20) is fixedly mounted on one side of the fixing seat (18), one end of the spring (20) is fixedly connected to the inner wall of the mounting block (25), and a sealing ring (24) is provided between the fixing seat (18) and the mounting block (25).

6. A vertical pump with a double-end seal self-cooling structure according to claim 5, characterized in that: A liquid outlet hole (22) and a liquid inlet hole (23) are provided on the circumferential surface of the mounting block (25); the liquid outlet pipe (3) is fixedly mounted in the liquid outlet hole (22); and the liquid inlet pipe (7) is fixedly mounted in the liquid inlet hole (23).

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