Novel mechanical seal flushing and cooling device

Abstract

The utility model relates to a novel mechanical seal flushing and cooling device which comprises an inner shaft, a rotating shaft fixedly connected with one end of the inner shaft, a cooling cover and a sealing box rotatably connected with the outer side of the inner shaft, and a flushing mechanism fixedly connected with the cooling cover. The flushing mechanism comprises cooling grooves formed in the outer side of the inner shaft and the inner sides of the cooling cover and the sealing box, the inner wall of the sealing box is fixedly connected with a first flow pipe, one end of the first flow pipe is fixedly connected with a second flow pipe, the inner diameter of the second flow pipe is smaller than that of the first flow pipe, and one end of the second flow pipe is fixedly connected with multiple sets of connecting rings. The flow speed of flushing water is increased by changing the diameter of the circulation pipelines, meanwhile, the length of each circulation pipeline is set to be short, the flow speed of the water cannot be reduced due to the fact that the pipelines are long, meanwhile, the circulation diameter of the flushing water is reduced again, and the flow speed is increased due to the arrangement of the connecting rings and the water blocking rings. The water outlet pipe is arranged between the sealing box and the second flow pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical flushing, in particular to a novel mechanical seal flushing cooling device. Background Art

[0002] Mechanical seal flushing refers to the process of flushing the sealing components and removing dirt and impurities by injecting a cleaning medium into the mechanical seal device. This is a common method of maintaining and servicing mechanical seals, which can extend the service life of the seals and ensure the normal operation of the equipment. At the same time, when the machine is in use, the internal sealing components will also emit heat, and the sealing components inside the machine need to be cooled while running.

[0003] It is difficult for existing seal flushing devices to effectively flush all areas inside the machine during flushing. When the inside of the machine is not completely flushed, dirt or media may remain on the surface of the sealing component, which may lead to a decrease in the sealing effect, making it impossible for the mechanical seal to achieve the expected sealing effect and increasing the risk of leakage.

[0004] Therefore, a new mechanical seal flushing cooling device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a novel mechanical seal flushing and cooling device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel mechanical seal flushing and cooling device, comprising an inner shaft, one end of the inner shaft is fixedly connected to a rotating shaft, the outer side of the inner shaft is rotatably connected to a cooling cover and a sealing box, the cooling cover and the sealing box are fixedly connected, and also comprises a flushing mechanism, the flushing mechanism comprises a cooling groove arranged on the outer side of the inner shaft and the inner side of the cooling cover and the sealing box, the inner wall of the sealing box is fixedly connected to a first flow tube, one end of the first flow tube is fixedly connected to a second flow tube, the inner diameter of the second flow tube is smaller than the first flow tube, one end of the second flow tube is fixedly connected to multiple groups of connecting rings, and the inner sides of the multiple groups of connecting rings are fixedly connected to water-blocking rings.

[0007] Preferably, a shaft sleeve is provided on the outer side of the inner shaft, and the inner side of the water blocking ring is fixedly connected to the shaft sleeve.

[0008] Preferably, two groups of through grooves are provided at the upper and lower ends of the sealing box.

[0009] Preferably, a water inlet pipe is sleeved inside the through groove at the upper end of the sealing box, and the upper end of the water inlet pipe is connected to the water inlet device.

[0010] Preferably, a water outlet pipe is sleeved inside the through groove at the lower end of the sealing box, and the lower end of the water outlet pipe is connected to the water collecting device.

[0011] Preferably, the upper opening of the water outlet pipe is arranged between the second flow pipe and the sealing box.

[0012] Preferably, a stationary ring is sleeved on the outer side of the inner shaft, and a stationary ring sealing ring is arranged between the stationary ring and the cooling cover.

[0013] Preferably, a dynamic ring is provided at one end of the static ring, the dynamic ring is sleeved on the outer side of the inner shaft, a dynamic ring sealing ring is provided on one side of the dynamic ring, and the dynamic ring and the static ring are sealed in cooperation.

[0014] Beneficial effects of the utility model:

[0015] Compared with the prior art, the utility model provides a novel mechanical seal flushing and cooling device, which increases the flow rate of flushing water by setting a flushing mechanism and changing the diameter of the circulation pipe. At the same time, the length of each group of circulation pipes is set shorter, and the water flow rate will not be reduced due to the longer pipes. At the same time, the setting of the connecting ring and the water-blocking ring further reduces the circulation diameter of the flushing water and increases the flow rate. The outlet pipe is set between the sealing box and the second flow pipe to reduce the rate at which the flushing water flows out of the outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a novel mechanical seal flushing and cooling device according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a novel mechanical seal flushing and cooling device according to an embodiment of the utility model;

[0019] Figure 3 A novel mechanical seal flushing cooling device is provided in the embodiment of the utility model. Figure 1 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0020] Figure 4 A novel mechanical seal flushing cooling device is provided in the embodiment of the utility model. Figure 3 Enlarged view of point B in the middle.

[0021] The markings in the figure are: 1. inner shaft; 2. rotating shaft; 3. cooling cover; 4. sealing box; 5. cooling trough; 6. water inlet pipe; 7. water outlet pipe; 8. bushing; 9. stationary ring; 10. stationary ring sealing ring; 11. dynamic ring; 12. dynamic ring sealing ring; 13. first flow tube; 14. second flow tube; 15. connecting ring; 16. water blocking ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0025] like Figures 1 to 4 As shown, a novel mechanical seal flushing and cooling device comprises an inner shaft 1, one end of the inner shaft 1 is fixedly connected to a rotating shaft 2, the outer side of the inner shaft 1 is rotatably connected to a cooling hood 3 and a sealing box 4, the cooling hood 3 and the sealing box 4 are fixedly connected, and also comprises a flushing mechanism, the flushing mechanism comprises a cooling groove 5 arranged on the outer side of the inner shaft 1 and the inner side of the cooling hood 3 and the sealing box 4, the inner wall of the sealing box 4 is fixedly connected to a first flow tube 13, one end of the first flow tube 13 is fixedly connected to a second flow tube 14, the inner diameter of the second flow tube 14 is smaller than the first flow tube 13, one end of the second flow tube 14 is fixedly connected to multiple groups of connecting rings 15, the inner side of the multiple groups of connecting rings 15 is fixedly connected to a water blocking ring 16.

[0026] Specifically, Figure 1 and Figure 4As shown, a shaft sleeve 8 is provided on the outer side of the inner shaft 1, and the inner side of the water blocking ring 16 is fixedly connected to the shaft sleeve 8. Two groups of through grooves are provided at the upper and lower ends of the sealing box 4. A water inlet pipe 6 is sleeved inside the through groove at the upper end of the sealing box 4, and the upper end of the water inlet pipe 6 is connected to the water inlet device. A static ring 9 is sleeved on the outer side of the inner shaft 1, and a static ring sealing ring 10 is provided between the static ring 9 and the cooling cover 3. A dynamic ring 11 is provided at one end of the static ring 9, and the dynamic ring 11 is sleeved on the outer side of the inner shaft 1. A dynamic ring sealing ring 12 is provided on one side of the dynamic ring 11, and the dynamic ring 11 and the static ring 9 are sealed together.

[0027] During operation, the inner shaft 1 rotates, the water inlet pipe 6 is connected to the water inlet device, and the flushing water enters the cooling tank 5 along the water inlet pipe 6. The flushing water flows along the first flow pipe 13 and the second flow pipe 14 to one side of the cooling tank 5, and flushes the seal, and the worn seal debris and other debris are washed away by the water flow. When the water flow flushes, because the second flow pipe 14 reduces the flow area of ​​the water flow, the flow rate of the water flow is increased. When the water flow passes between the connecting ring 15 and the water blocking ring 16, the flow area of ​​the water flow is further reduced, so that when the water flow flushes the seal, the flow rate is faster and the flushing intensity is higher. By setting a flushing mechanism and changing the diameter of the circulation pipe, the flow rate of the flushing water is increased. At the same time, the length of each group of circulation pipes is set shorter, and the water flow rate will not be reduced due to the longer pipe.

[0028] like Figure 1 and Figure 4 As shown, a water outlet pipe 7 is sleeved inside the through groove at the lower end of the sealing box 4 , and the lower end of the water outlet pipe 7 is connected to the upper end opening of the water outlet pipe 7 of the water collecting device and is arranged between the second flow pipe 14 and the sealing box 4 .

[0029] During operation, after the flushing water flushes the seal, the flushing water is discharged through the outlet pipe 7 and flows into the water collecting device. Because the opening of the outlet pipe 7 is arranged between the sealing box 4 and the second flow pipe 14, when the flushing water enters the cooling tank 5, the flushing water that has just entered will not be discharged through the outlet pipe 7 due to the influence of gravity.

[0030] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A novel mechanical seal flushing and cooling device, comprising an inner shaft (1), one end of the inner shaft (1) being fixedly connected to a rotating shaft (2), characterized in that: The outer side of the inner shaft (1) is rotatably connected to a cooling hood (3) and a sealing box (4), and the cooling hood (3) is fixedly connected to the sealing box (4); The invention also comprises a flushing mechanism, the flushing mechanism comprising a cooling groove (5) arranged on the outer side of the inner shaft (1) and the inner side of the cooling cover (3) and the sealing box (4); the inner wall of the sealing box (4) is fixedly connected with a first flow tube (13); one end of the first flow tube (13) is fixedly connected with a second flow tube (14); the inner diameter of the second flow tube (14) is smaller than that of the first flow tube (13); one end of the second flow tube (14) is fixedly connected with a plurality of connection rings (15); the inner sides of the plurality of connection rings (15) are fixedly connected with water blocking rings (16).

2. A novel mechanical seal flushing and cooling device as claimed in claim 1, characterized in that: A shaft sleeve (8) is arranged on the outer side of the inner shaft (1), and the inner side of the water blocking ring (16) is fixedly connected to the shaft sleeve (8).

3. A novel mechanical seal flushing and cooling device as claimed in claim 2, characterized in that: Two groups of through grooves are arranged at the upper and lower ends of the sealing box (4).

4. A novel mechanical seal flushing and cooling device as claimed in claim 3, characterized in that: A water inlet pipe (6) is sleeved inside the through groove at the upper end of the sealing box (4), and the upper end of the water inlet pipe (6) is connected to the water inlet equipment.

5. A novel mechanical seal flushing and cooling device as claimed in claim 4, characterized in that: A water outlet pipe (7) is sleeved inside the through groove at the lower end of the sealing box (4), and the lower end of the water outlet pipe (7) is connected to a water collecting device.

6. A novel mechanical seal flushing and cooling device as claimed in claim 5, characterized in that: The upper opening of the water outlet pipe (7) is arranged between the second flow pipe (14) and the sealing box (4).

7. A novel mechanical seal flushing and cooling device as claimed in claim 1, characterized in that: A stationary ring (9) is sleeved on the outer side of the inner shaft (1), and a stationary ring sealing ring (10) is arranged between the stationary ring (9) and the cooling cover (3).

8. A novel mechanical seal flushing and cooling device as claimed in claim 7, characterized in that: A dynamic ring (11) is provided at one end of the static ring (9), and the dynamic ring (11) is sleeved on the outer side of the inner shaft (1). A dynamic ring sealing ring (12) is provided on one side of the dynamic ring (11), and the dynamic ring (11) and the static ring (9) are sealed in cooperation.

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