CN209340509U - A kind of novel purified water medium mechanical seal - Google Patents
A kind of novel purified water medium mechanical seal Download PDFInfo
- Publication number
- CN209340509U CN209340509U CN201821960954.7U CN201821960954U CN209340509U CN 209340509 U CN209340509 U CN 209340509U CN 201821960954 U CN201821960954 U CN 201821960954U CN 209340509 U CN209340509 U CN 209340509U
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- Prior art keywords
- ring
- rotating ring
- fixing piece
- stationary
- stationary ring
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Abstract
The utility model discloses a kind of novel purified water medium mechanical seals, including stationary ring, rotating ring, stationary ring fixing piece, rotating ring fixing piece, throw-out collar, spring, spring base, stationary ring auxiliary seal ring and rotating ring auxiliary seal ring；Stationary ring auxiliary seal ring is fixed on stationary ring by stationary ring fixing piece；Rotating ring auxiliary seal ring is fixed on rotating ring by rotating ring fixing piece；Rotating ring auxiliary seal ring is connected with throw-out collar, and spring one end is connected with throw-out collar, and the other end is connected with spring base；It is connected between stationary ring fixing piece and rotating ring fixing piece by interannular sealant；Stationary ring is using stationary ring made of nickel doped silicon carbide material；Rotating ring is using rotating ring made of tungsten carbide material；End cap seal is provided between end cap and pump case.Present apparatus structure is simple, easy to use, good seal performance, avoids being corroded and revealing；The setting of throw-out collar and spring so that being adhesively fixed between stationary ring fixing piece and rotating ring fixing piece, and is conducive to increase the sealing effect of rotating ring auxiliary seal ring.
Description
Technical field
The utility model relates to the cooling equipment technical field of power industry more particularly to a kind of novel purified water medium machinery are close
Envelope.
Background technique
DC transmission engineering is key state project, and the stability of operation is the primary premise that engineering is smoothly implemented.It changes
Core component of the valve as converter station is flowed, the stability significant portion of operation depends on the stabilization of converter valve cooling system operation
Property.The stabilization and normal operation of main circulation pump as cooling system important component are often depending on the work of mechanical seal
Operating condition.That is mechanical seal stable operation directly decides DC transmission engineering reliability of operation and stability.
Mechanical seal is mainly made of rotating ring, stationary ring and auxiliary sealing member etc..Mechanical seal is main circulation pump core component,
Its reliability decides the stability of entire cooling system operation.
Traditional valve cooling system mechanical seal material is mainly made of silicon carbide, and auxiliary seal material is fluorubber.In this way
One, traditional mechanical seal applies in DC transmission engineering that there are following defects:
1, easily occur white pit corrosion in a cooling system, generate leakage；
2, it wears no resistance, replace that maintenance period is short, and maintenance workload is big.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, and it is close to provide a kind of novel purified water medium machinery
Envelope.
The utility model is achieved through the following technical solutions: a kind of novel purified water medium mechanical seal, and setting exists
In converter valve cooling system, cooling system includes main circulation pump, the end cap that main circulation pump is equipped with pump case and is fixed on pump case, machine
Tool sealing includes stationary ring, the rotating ring being arranged with stationary ring pairing, auxiliary sealing member, stationary ring fixing piece, rotating ring fixing piece, pushes away
Ring, spring and spring base；The auxiliary sealing member includes stationary ring auxiliary seal ring and rotating ring auxiliary seal ring；The stationary ring auxiliary
Sealing ring is fixed on the stationary ring by the stationary ring fixing piece；The rotating ring auxiliary seal ring passes through the rotating ring fixing piece
It is fixed on the rotating ring；The rotating ring auxiliary seal ring is connected with the throw-out collar, and the spring one end is connected with the throw-out collar,
Its other end is connected with the spring base；Connected between the stationary ring fixing piece and the rotating ring fixing piece by interannular sealant
It connects；The stationary ring is using stationary ring made of nickel doped silicon carbide material；The rotating ring is to move using made of tungsten carbide material
Ring；End cap seal is provided between the end cap and pump case.
Stationary ring made of nickel doped silicon carbide material, material is extensively and economical, and stable chemical performance, wearability are good, resistance to
Corruption；Rotating ring made of tungsten carbide material is stablized insoluble in acid, chemical property, has good electric conductivity, avoid running
Charge enrichment, forms static discharge；The setting of auxiliary sealing member can avoid generating conducive to will be connected and sealed between component
Leakage；The setting of throw-out collar and spring so that being adhesively fixed between stationary ring fixing piece and rotating ring fixing piece, and is conducive to increase rotating ring
The sealing effect of auxiliary seal ring.
The stationary ring auxiliary seal ring is using O-ring seal made of nitrile rubber material.
The rotating ring auxiliary seal ring is using O-ring seal made of nitrile rubber material.Nitrile rubber material is made
O-ring seal, oil resistivity is good, and wearability high-fire resistance is good, and bonding force is strong.
The spring is spring made of nichrome material；The spring is arranged using the equal mode for cloth of six groups of groups of springs,
Every group of groups of springs is equipped with two springs.Multiple groups groups of springs is uniformly arranged, it is possible to provide enough strength make stationary ring fixing piece with
Rotating ring fixing piece fits closely, and rotating ring auxiliary seal ring is squeezed, and sealing performance is more preferably.
It is compared with the prior art, utility model has the advantages that present apparatus structure is simple, easy to use, sealing performance
It is good, and because of the good electric conductivity of rotating ring, it avoids being revealed by the electrochemical corrosion caused by static discharge, greatly be promoted
The durability of mechanical seal, primary by replacements in pervious three months, it is primary to be extended for replacement in 2 years, greatly reduces maintenance
Workload improves the reliability of DC operation；The setting of throw-out collar and spring, so that between stationary ring fixing piece and rotating ring fixing piece
It is adhesively fixed, and is conducive to increase the sealing effect of rotating ring auxiliary seal ring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Appended drawing reference meaning in figure: 1, end cap seal；2, stationary ring auxiliary seal ring；3, rotating ring auxiliary seal ring；4, interannular
Sealant；5, stationary ring fixing piece；6, rotating ring fixing piece；7, throw-out collar；8, spring；9, spring base；10, stationary ring；11, rotating ring.
Specific embodiment
The content of the utility model is described in further details with reference to the accompanying drawings and detailed description.
Embodiment
Refering to fig. 1, it is a kind of novel purified water medium mechanical seal, is arranged in converter valve cooling system, cooling system packet
Include main circulation pump, the end cap that main circulation pump is equipped with pump case and is fixed on pump case, mechanical seal includes stationary ring 10, matches with stationary ring 10
To the rotating ring 11 of setting, auxiliary sealing member, stationary ring fixing piece 5, rotating ring fixing piece 6, throw-out collar 7, spring 8 and spring base 9；It assists close
Sealing includes stationary ring auxiliary seal ring 2 and rotating ring auxiliary seal ring 3；Stationary ring auxiliary seal ring 2 is fixed on by stationary ring fixing piece 5
On stationary ring 10；Rotating ring auxiliary seal ring 3 is fixed on rotating ring 11 by rotating ring fixing piece 6；Rotating ring auxiliary seal ring 3 and throw-out collar 7
It is connected, 8 one end of spring is connected with throw-out collar 7, and the other end is connected with spring base 9；Between stationary ring fixing piece 5 and rotating ring fixing piece 6
It is connected by interannular sealant 4；Stationary ring 10 is using stationary ring 10 made of nickel doped silicon carbide material；Rotating ring 11 is using carbonization
Rotating ring 11 made of tungsten material；End cap seal 1 is provided between end cap and pump case.
Stationary ring 10 made of nickel doped silicon carbide material, material is extensively and economical, stable chemical performance, wearability be good,
Rotproofness；Rotating ring 11 made of tungsten carbide material stablize insoluble in acid, chemical property, have good electric conductivity, avoid running
In charge enrichment, formed static discharge；The setting of auxiliary sealing member can avoid conducive to will be connected and sealed between component
Generate leakage；The setting of throw-out collar 7 and spring 8 so that being adhesively fixed between stationary ring fixing piece 5 and rotating ring fixing piece 6, and is conducive to
Increase the sealing effect of rotating ring auxiliary seal ring 3.
Stationary ring auxiliary seal ring 2 is using O-ring seal made of nitrile rubber material.
Rotating ring auxiliary seal ring 3 is using O-ring seal made of nitrile rubber material.O made of nitrile rubber material
Type sealing ring, oil resistivity is good, and wearability high-fire resistance is good, and bonding force is strong.
Spring 8 is spring 8 made of nichrome material；Spring 8 is using the equal mode for cloth setting of six groups of groups of springs, every group of bullet
Spring group is equipped with two springs 8.Multiple groups groups of springs is uniformly arranged, it is possible to provide enough strength makes stationary ring fixing piece 5 and rotating ring
Fixing piece 6 fits closely, and rotating ring auxiliary seal ring 3 is squeezed, and sealing performance is more preferably.
Above-listed detailed description is illustrating for the utility model possible embodiments, and the embodiment is not to limit
The scope of the patents of the utility model, all equivalence enforcements or change without departing from carried out by the utility model, is intended to be limited solely by this case
In the scope of the patents.
Claims (4)
1. a kind of novel purified water medium mechanical seal is arranged in converter valve cooling system, cooling system includes main circulation pump, main
The end cap that circulating pump is equipped with pump case and is fixed on pump case, it is characterised in that: be arranged including stationary ring, with stationary ring pairing dynamic
Ring, auxiliary sealing member, stationary ring fixing piece, rotating ring fixing piece, throw-out collar, spring and spring base；The auxiliary sealing member includes stationary ring
Auxiliary seal ring and rotating ring auxiliary seal ring；The stationary ring auxiliary seal ring is fixed on the stationary ring by the stationary ring fixing piece
On；The rotating ring auxiliary seal ring is fixed on the rotating ring by the rotating ring fixing piece；The rotating ring auxiliary seal ring with
The throw-out collar is connected, and the spring one end is connected with the throw-out collar, and the other end is connected with the spring base；The stationary ring is fixed
It is connected between part and the rotating ring fixing piece by interannular sealant；The stationary ring is using made of nickel doped silicon carbide material
Stationary ring；The rotating ring is using rotating ring made of tungsten carbide material；End cap seal is provided between the end cap and pump case.
2. novel purified water medium mechanical seal according to claim 1, it is characterised in that: the stationary ring auxiliary seal ring is
Using O-ring seal made of nitrile rubber material.
3. novel purified water medium mechanical seal according to claim 1, it is characterised in that: the rotating ring auxiliary seal ring is
Using O-ring seal made of nitrile rubber material.
4. novel purified water medium mechanical seal according to claim 1, it is characterised in that: the spring is nichrome material
Spring made of expecting；The spring is equipped with two springs using the equal mode for cloth setting of six groups of groups of springs, every group of groups of springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960954.7U CN209340509U (en) | 2018-11-27 | 2018-11-27 | A kind of novel purified water medium mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960954.7U CN209340509U (en) | 2018-11-27 | 2018-11-27 | A kind of novel purified water medium mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209340509U true CN209340509U (en) | 2019-09-03 |
Family
ID=67749155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821960954.7U Active CN209340509U (en) | 2018-11-27 | 2018-11-27 | A kind of novel purified water medium mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209340509U (en) |
-
2018
- 2018-11-27 CN CN201821960954.7U patent/CN209340509U/en active Active
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| GR01 | Patent grant |