CN207500180U - A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump - Google Patents
A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump Download PDFInfo
- Publication number
- CN207500180U CN207500180U CN201721413342.1U CN201721413342U CN207500180U CN 207500180 U CN207500180 U CN 207500180U CN 201721413342 U CN201721413342 U CN 201721413342U CN 207500180 U CN207500180 U CN 207500180U
- Authority
- CN
- China
- Prior art keywords
- ring
- axle sleeve
- rotating
- circulating pump
- rotating seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump, including polyurethane sheet, axle sleeve, rotating seat, end cap, spring base and drive ring, polyurethane sheet serves as a contrast the outer surface for being located at rotating seat and end cap, axle sleeve is set in shaft, drive ring compresses axle sleeve, rotating seat is fastenedly connected axle sleeve, rotating ring is provided in rotating seat, spring base is fastenedly connected on end cap, spring is provided in spring base, the front end of spring compresses and is connected with stationary ring, the rear end of rotating ring and the front end of stationary ring compress to form sealing surface, and rotating ring is rotated relative to stationary ring, coolant circulation groove is provided between sealing surface and axle sleeve, coolant circulation groove below shaft is connected with coolant inlet, coolant circulation groove above shaft is connected with coolant liquid outlet.Advantageous effect be with the polyurethane sheet of gypsum slurries contact position can effective protection end cap and rotating seat, prevent erosion corrosion, effectively extend service life, reduce production cost.
Description
Technical field
The utility model belongs to mechanically-sealing apparatus field, more particularly, to a kind of erosion control brush-type for slurry circulating pump
Mechanically-sealing apparatus.
Background technology
Slurry circulating pump is that a kind of important large scale equipment, their operation conditions are straight in each desulfurization system for thermal power plant
The generating efficiency for affecting this power plant is connect, and serum recycle pump mechanical sealing is the component of one of core.If it is desired to
The service life of serum recycle pump mechanical sealing is improved, must just solve two technical problems, one is gypsum slurries to close
Envelope metalwork washes away, the other is corrosion of institute's sulfur-containing anion to sealing in slurries.According to impaired slurry circulating pump
The end cap and axle sleeve that most of the analysis of mechanical seal, the reason of mechanical seal is caused to fail are an exposure in slurries are washed out
Hole, some, which even washes away the protection board of slurry circulating pump, portals.
Utility model content
In view of this, the utility model is directed to a kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump,
With the polyurethane sheet of gypsum slurries contact position can effective protection end cap and rotating seat, prevent erosion corrosion, effectively extending makes
With the service life, production cost is reduced.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump, including polyurethane sheet, axle sleeve, rotating seat, end
Lid, spring base and drive ring, the polyurethane sheet lining are located at the outer surface of the rotating seat and the end cap, the axle sleeve setting
In in shaft, the drive ring compresses the axle sleeve, and the rotating seat is fastenedly connected the axle sleeve, is provided in the rotating seat
Rotating ring, the spring base are fastenedly connected on the end cap, and spring is provided in the spring base, and the front end of the spring compresses
Stationary ring is connected with, the rear end of the rotating ring and the front end of the stationary ring compress to form sealing surface, and the rotating ring is relatively described quiet
Ring rotates, and is provided with coolant circulation groove between the sealing surface and the axle sleeve, the cooling liquid stream below the shaft
Straight slot is connected with coolant inlet, and the coolant circulation groove above the shaft is connected with coolant liquid outlet.
Further, the thickness of the polyurethane sheet is 4mm to 5mm.
Further, the outside framework oil seal for sealing the coolant circulation groove is provided in the spring base.
Further, the rear end face of the spring base is provided with positioning plate, and the positioning plate passes through screw in compression.
Further, it is provided with throw-out collar between the stationary ring rear end and the spring.
Further, be provided with the first O-ring seals between the rotating seat and the shaft, the rotating seat with it is described
The second O-ring seals are provided between rotating ring, third O-ring seals are provided between the end cap and the stationary ring.
Further, twist-on has interior hexagon concave-end locking screw in the drive ring.
Relative to the prior art, the erosion control brush-type mechanically-sealing apparatus described in the utility model for slurry circulating pump has
There is following advantage：
The utility model has set a strata urethane in the place that serum recycle pump mechanical sealing is contacted with gypsum slurries, lining
Plate, can effective protection end cap and rotating seat, they are not washed away by gypsum slurries, contribute to extend slurry circulating pump machinery
The service life of sealing, and end cap and rotating seat are served as a contrast inside by polyurethane sheet, it is not required that with it is expensive it is two-way not
Become rusty Steel material, reduces production cost；Coolant circulation groove on the inside of rotating ring and stationary ring can circulate coolant, play cooling and
Wash away the effect of internal impurity.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the schematic cross-sectional view of the utility model embodiment.
Reference sign：
1- polyurethane sheets；2- axle sleeves；3- rotating seats；31- rotating rings；32- sealing surfaces；The first O-ring seals of 33-；34- second
O-ring seals；4- end caps；41- third O-ring seals；5- spring bases；51- springs；52- stationary rings；53- outside framework oil seals；54- determines
Position plate；55- throw-out collars；6- drive rings；Hexagon concave-end locking screw in 61-；7- shafts；8- coolant circulation grooves；9- coolants into
Liquid mouth；10- coolant liquid outlets.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the utility model can
To be combined with each other.
In the description of the present invention, it is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description rather than instruction
Or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the utility model.In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can express or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, " multiple " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the utility model provides a kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump, including
Polyurethane sheet 1, axle sleeve 2, rotating seat 3, end cap 4, spring base 5 and drive ring 6, the lining of polyurethane sheet 1 are located at the rotating seat 3
With the outer surface of the end cap 4, the axle sleeve 2 is set in shaft 7, and the drive ring 6 compresses the axle sleeve 2, the rotating ring
Seat 3 is fastenedly connected the axle sleeve 2, rotating ring 31 is provided in the rotating seat 3, the spring base 5 is fastenedly connected in the end cap 4
On, spring 51 is provided in the spring base 5, the front end of the spring 51, which compresses, is connected with stationary ring 52, after the rotating ring 31
End and the front end of the stationary ring 52 compress to form sealing surface 32, and the rotating ring 31 is rotated relative to the stationary ring 52, the sealing
Coolant circulation groove 8 is provided between face 32 and the axle sleeve 2, the coolant circulation groove 8 of 7 lower section of shaft is connected with
Coolant inlet 9, the coolant circulation groove 8 of 7 top of shaft are connected with coolant liquid outlet 10.
The thickness of the polyurethane sheet 1 is 4mm to 5mm.
The outside framework oil seal 53 for sealing the coolant circulation groove 8 is provided in the spring base 5.
The rear end face of the spring base 5 is provided with positioning plate 54, and the positioning plate 54 passes through screw in compression.
Throw-out collar 55 is provided between 52 rear end of stationary ring and the spring 51.
The first O-ring seals 33, the rotating seat 3 and the rotating ring are provided between the rotating seat 3 and the shaft 7
The second O-ring seals 34 are provided between 31, third O-ring seals 41 are provided between the end cap 4 and the stationary ring 52.
Twist-on has interior hexagon concave-end locking screw 61 in the drive ring 6.
The course of work of this example：The lining of polyurethane sheet 1 is located at the place that rotating seat 3 and end cap 4 are contacted with gypsum slurries, protects
Axle sleeve 2 is pressed in shaft 7 by the shield rotating seat 3 of liner and end cap 4, drive ring 6 by interior hexagon concave-end locking screw 61, is moved
Ring seat 3 is fastened on axle sleeve 2, and so as to ensure that rotating seat 3 can be rotated synchronously with shaft 7, rotating ring 31 is rotated relative to stationary ring 52, is moved
Ring 31 and stationary ring 52 form sealing surface 32, and spring 51 compresses stationary ring 52 to 31 direction of rotating ring through throw-out collar 55, plays sealing compensation
Effect ensures that rotating ring 31 and stationary ring 52 constantly compress, 32 no leakage of sealing surface, and coolant is imported by coolant inlet 9, cold
But liquid energy is enough flows in coolant circulation groove 8, plays the role of cooling and erosive wear impurity, coolant goes out liquid through coolant
Mouth 10 is discharged, wherein, outside framework oil seal 53 seals coolant circulation groove 8, prevents from leaking.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump, it is characterised in that：Including polyurethane sheet, axle sleeve,
Rotating seat, end cap, spring base and drive ring, the polyurethane sheet lining are located at the outer surface of the rotating seat and the end cap, institute
It states axle sleeve to be set in shaft, the drive ring compresses the axle sleeve, and the rotating seat is fastenedly connected the axle sleeve, the rotating ring
Rotating ring is provided in seat, the spring base is fastenedly connected on the end cap, and spring, the spring are provided in the spring base
Front end compress and be connected with stationary ring, the rear end of the rotating ring and the front end of the stationary ring compress to form sealing surface, and the rotating ring
It is rotated relative to the stationary ring, is provided with coolant circulation groove between the sealing surface and the axle sleeve, the institute below the shaft
It states coolant circulation groove and is connected with coolant inlet, the coolant circulation groove above the shaft is connected with coolant and goes out
Liquid mouth.
2. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
The thickness of polyurethane sheet is 4mm to 5mm.
3. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
The outside framework oil seal for sealing the coolant circulation groove is provided in spring base.
4. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
The rear end face of spring base is provided with positioning plate, and the positioning plate passes through screw in compression.
5. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
Throw-out collar is provided between stationary ring rear end and the spring.
6. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
The first O-ring seals are provided between rotating seat and the shaft, the 2nd O shapes are provided between the rotating seat and the rotating ring
Sealing ring is provided with third O-ring seals between the end cap and the stationary ring.
7. the erosion control brush-type mechanically-sealing apparatus according to claim 1 for slurry circulating pump, it is characterised in that：It is described
Twist-on has interior hexagon concave-end locking screw in drive ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413342.1U CN207500180U (en) | 2017-10-30 | 2017-10-30 | A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413342.1U CN207500180U (en) | 2017-10-30 | 2017-10-30 | A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500180U true CN207500180U (en) | 2018-06-15 |
Family
ID=62501931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721413342.1U Expired - Fee Related CN207500180U (en) | 2017-10-30 | 2017-10-30 | A kind of erosion control brush-type mechanically-sealing apparatus for slurry circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500180U (en) |
-
2017
- 2017-10-30 CN CN201721413342.1U patent/CN207500180U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20181030 |