Mechanical seal flushing pipeline structure of bottom feeding type stirrer

Abstract

The utility model relates to the technical field of pipeline structures, and discloses a mechanical seal flushing pipeline structure of a bottom-feeding stirrer, which comprises a spacer fluid inlet pipe orifice, a static ring is arranged on one side of the spacer fluid inlet pipe orifice, a movable ring is arranged on the top of the static ring, an O-shaped ring is arranged on one side of the movable ring, a spring is arranged on the top of the O-shaped ring, and a sealing ring is arranged on the other side of the spring. The top of the spring is provided with a shaft sleeve, one side of the shaft sleeve is provided with a bolt, the bottom of the bolt is provided with a filler seal, and the bottom, communicated with the spacer fluid outlet pipeline, of the filler seal flushing pipeline is provided with a first spacer fluid outlet pipe. Water at the flushing outlet of the double-end-face mechanical seal is led to the labyrinth seal to be used for flushing the labyrinth seal, so that sealing water of the double-end-face mechanical seal does not need to be treated, only water is fed, water return and water cooling circulation facilities do not need to be arranged, and the operation difficulty is greatly simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline structure technical field more particularly to a bottom -in formula agitator's mechanical seal flush's pipeline structure. BACKGROUND

[0002] In organic chemical production, part of polymerization reactor because top installs condenser, agitator usually adopts bottom -in formula installation mode.

[0003] However, this installation mode has a problem: when agitator stops running, particulate matter is easy to enter bottom sealing area, causes sealing device wear and tear even leakage, to prevent solid particle into main sealing device (pressure double -end face mechanical seal), generally will set up labyrinth seal at tank bottom, but this design needs two flushings water: one is used for the labyrinth seal, and its flushing water directly enters tank and cannot be recycled, the other is used for double -end face mechanical seal, and its flushing water will return to central system after use, because it is pressure sealing, the flushing water that returns mixes into tank medium, is no longer pure, therefore cannot be used for other purposes, in addition, only a small amount of isolation liquid (desalted water) in the system if recycling reuse, still need to be equipped with cooler, pump station, storage tank and a series of complex equipment, operation is extremely cumbersome. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a bottom -in formula agitator's mechanical seal flush's pipeline structure to solve the problem in above -mentioned background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a bottom -in formula agitator's mechanical seal flush's pipeline structure, including isolation liquid inlet pipe, one side of the isolation liquid inlet pipe is equipped with static ring, the top of static ring is equipped with dynamic ring, one side of dynamic ring is equipped with O -ring, the top of O -ring is equipped with spring, the top of spring is equipped with shaft sleeve, one side of shaft sleeve is equipped with bolt, the bottom of bolt is equipped with packing seal, the bottom of packing seal is equipped with packing seal flush pipe, the bottom of packing seal flush pipe is equipped with packing seal flush pipe and isolation liquid outlet pipe intercommunication, the bottom of packing seal flush pipe and isolation liquid outlet pipe intercommunication is equipped with first isolation liquid outlet pipe, one side of first isolation liquid outlet pipe is equipped with positioner, one side of positioner is equipped with sealing cavity, one side of packing seal flush pipe and isolation liquid outlet pipe intercommunication bottom is fixedly connected with packing seal flush pipe pipe, one side of the bottom of isolation liquid inlet pipe is fixedly connected with second isolation liquid outlet pipe, the bottom of packing seal flush pipe and isolation liquid outlet pipe intercommunication is equipped with bearing.

[0006] Further, the packing seal inside is connected with the packing seal flushing pipeline and the first isolation liquid outlet pipeline through the packing seal flushing pipeline and the isolation liquid outlet pipeline.

[0007] Technical effects and advantages of the present application:

[0008] 1. The packing seal flushing pipeline port and other structures are arranged to guide the water of the double-end mechanical seal flushing outlet to the labyrinth seal, and the labyrinth seal is flushed, so that the sealing water of the double-end mechanical seal does not need to be treated again, only water is needed, and backwater and water cooling circulation facilities do not need to be arranged again, so that the operation difficulty is greatly simplified. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 The mechanical seal improved design profile schematic view of the present application;

[0010] Figure 2 The whole structure schematic view of the isolation liquid outlet pipe of the present application.

[0011] The figure marks are: 1, isolation liquid inlet port; 2, static ring; 3, dynamic ring; 4, O-shaped ring; 5, spring; 6, shaft sleeve; 7, bolt; 8, packing seal; 9, packing seal flushing pipeline; 10, packing seal flushing pipeline and isolation liquid outlet pipeline connection; 11, first isolation liquid outlet pipe; 12, positioner; 13, sealing cavity; 14, packing seal flushing pipeline port; 15, second isolation liquid outlet pipe; 16, bearing. DETAILED DESCRIPTION

[0012] The technical scheme of the present application will be described clearly and completely in combination with the drawings in the present application, and the forms of each structure described in the following embodiments are only examples, and the mechanical seal flushing pipeline structure of the bottom-in type stirrer of the present application is not limited to each structure described in the following embodiments, and all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the present application.

[0013] REFERENCE Figures 1-2The utility model provides a kind of bottom entry type agitator's mechanical seal flushing's pipeline structure, including isolation liquid inlet pipe 1, the side of isolation liquid inlet pipe 1 is equipped with static ring 2, the top of static ring 2 is equipped with dynamic ring 3, the side of dynamic ring 3 is equipped with O ring 4, the top of O ring 4 is equipped with spring 5, the top of spring 5 is equipped with shaft sleeve 6, the side of shaft sleeve 6 is equipped with bolt 7, the bottom of bolt 7 is equipped with packing seal 8, the bottom of packing seal 8 is equipped with packing seal flushing pipeline 9, the bottom of packing seal flushing pipeline 9 is equipped with packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication 10, the bottom of packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication 10 is equipped with first isolation liquid outlet pipe 11, the side of first isolation liquid outlet pipe 11 is equipped with positioner 12, the side of positioner 12 is equipped with sealing cavity 13, the side of packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication 10 bottom is fixedly connected with packing seal flushing pipeline pipe 14, the side of isolation liquid inlet pipe 1 bottom is fixedly connected with second isolation liquid outlet pipe 15, the bottom of packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication 10 is equipped with bearing 16.

[0014] Referring to Figure 1 , by isolation liquid inlet pipe 1 into sealing system, the main role of isolation liquid is lubrication and cooling sealing assembly, while preventing tank medium and outside air contact, avoid medium leakage, after isolation liquid enters sealing cavity 13, first contact static ring 2 and dynamic ring 3, static ring 2 is fixed in sealing cavity, dynamic ring 3 rotates along with the rotation of agitator shaft, and the tight contact between the two is kept through O ring 4 and spring 5, forms sealing liquid film, ensures sealing effect, shaft sleeve 6 and bolt 7 are used to fix sealing assembly, ensure the stability of sealing system, spring 5 provides elastic force, so that dynamic ring 2 and static ring 3 keep tight contact, even in the slight vibration or deviation of shaft also can keep good sealing performance, positioner 12 is used for accurately control the position of sealing assembly, ensure that the sealing gap between dynamic ring 3 and static ring 2 keeps in optimum state, improves sealing performance.

[0015] In the embodiment, it needs to be specifically supplemented that: the packing seal flushing pipeline packing seal flushing pipeline 9 and the isolation liquid outlet pipeline first isolation liquid outlet pipe 11 in the machine seal are interconnected through the packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication pipe packing seal flushing pipeline and isolation liquid outlet pipeline intercommunication 10.

[0016] The utility model discloses a working principle: through setting up an internal pipeline (filling seal flush pipeline and isolation liquid outlet pipeline intercommunication pipe 10) in the machine seal inside, the flush water of double end face mechanical seal is directly introduced to the labyrinth seal, is used for the flush of the labyrinth seal, and filling seal flush pipeline 9 is used for introducing flush water, flushes filling seal 8, prevents the particle from entering the sealed area, and filling seal flush pipeline and isolation liquid outlet pipeline intercommunication pipe 10 connect filling seal flush pipeline 9 and first isolation liquid outlet pipe 11, make the flush water of double end face mechanical seal can flow into the labyrinth seal, and first isolation liquid outlet pipe 11 is used for discharging the isolation liquid after flushing, ensures the liquid flow in system smooth.

[0017] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0018] Finally, it should be noted that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0019] Secondly: the utility model discloses the embodiment of the drawing, only relates to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0020] Finally: the above only for the preferred embodiment of the utility model has been described, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirits and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A piping arrangement for mechanical seal flushing of a bottom entry agitator comprising an isolating liquid inlet nozzle (1), characterized in that, The side of the isolation liquid inlet nozzle (1) is provided with a static ring (2), the top of the static ring (2) is provided with a dynamic ring (3), one side of the dynamic ring (3) is provided with an O-shaped ring (4), the top of the O-shaped ring (4) is provided with a spring (5), the top of the spring (5) is provided with a shaft sleeve (6), one side of the shaft sleeve (6) is provided with a bolt (7), the bottom of the bolt (7) is provided with a packing seal (8), the bottom of the packing seal (8) is provided with a packing seal flushing pipeline (9), the bottom of the packing seal flushing pipeline (9) is provided with a packing seal flushing pipeline and isolation liquid outlet pipeline communication (10).

2. A bottom entry mixer mechanical seal flush piping arrangement according to claim 1, characterized in that: The bottom of the packing seal flushing pipeline and isolation liquid outlet pipeline communication (10) is provided with a first isolation liquid outlet pipe (11).

3. A bottom entry mixer mechanical seal flush piping arrangement according to claim 2, wherein: One side of the first isolation liquid outlet pipe (11) is provided with a positioner (12), one side of the positioner (12) is provided with a sealing cavity (13).

4. A bottom entry mixer mechanical seal flush piping arrangement as claimed in claim 2 wherein: The bottom of the packing seal flushing pipeline and isolation liquid outlet pipeline communication (10) is fixedly connected with a packing seal flushing pipeline nozzle (14) on one side.

5. A bottom entry mixer mechanical seal flush piping arrangement as claimed in claim 1 wherein: The bottom of the isolation liquid inlet nozzle (1) is fixedly connected with a second isolation liquid outlet pipe (15), and the bottom of the packing seal flushing pipeline and isolation liquid outlet pipeline communication (10) is provided with a bearing (16).

6. A bottom entry mixer mechanical seal flush piping arrangement as claimed in claim 2 wherein: The packing seal flushing pipeline and isolation liquid outlet pipeline communication (10) is communicated with the packing seal flushing pipeline (9) and the first isolation liquid outlet pipe (11) in the machine seal.

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