CN206449001U - A kind of preposition mechanical sealing device used for pump of power plant - Google Patents
A kind of preposition mechanical sealing device used for pump of power plant Download PDFInfo
- Publication number
- CN206449001U CN206449001U CN201720063906.7U CN201720063906U CN206449001U CN 206449001 U CN206449001 U CN 206449001U CN 201720063906 U CN201720063906 U CN 201720063906U CN 206449001 U CN206449001 U CN 206449001U
- Authority
- CN
- China
- Prior art keywords
- ring
- spring
- honour
- pump
- seal
- 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 discloses a kind of preposition mechanical sealing device used for pump of power plant, axis body is fixedly mounted on through the seal end plate of pump housing both sides end face including the pump housing and by fixing bolt, the axis body surface of the axis body position and pump housing junction is fixed and has packer ring, stationary ring is installed on the inside of the seal end plate, one side end face of the stationary ring is connected with rotating ring, the top end face of the rotating ring is fitted with the spring seat of honour, and spring seat of honour bottom is provided with spring lower seat positioned at caulking gum ring surface, spring is installed between spring lower seat and the spring seat of honour, the two ends of the spring are separately fixed at spring stop and the central engagement plate positioned at spring seat of honour side positioned at spring seat of honour bottom end face, and central engagement plate is fixed on packer ring outer side wall surface.The utility model reasonable in design, replaces traditional airtight and watertight padding by auxiliary seal ring and seal ring of moving ring and three sealing rings of stationary ring sealing ring, greatly reduces use cost.
Description
Technical field
The utility model is related to a kind of mechanically-sealing apparatus, specifically a kind of preposition mechanical sealing device used for pump of power plant, category
In electric power factory equipment applied technical field.
Background technology
Because the water temperature of entrance of water-supplying pump is close to the saturation temperature under the pressure, condition of work is severe, it is easy to occur vapour
Change, to ensure the safe operation of feed pump, generally be the low speed fore pump that feed water pump matching flow matches with feed pump, because
Low for preposition revolution speed, anti-cavitation performance is good, and the feedwater of oxygen-eliminating device enters feed pump after being pressurized through fore pump, it is ensured that boiler is given
Enough net positive suction heads needed for water pump, so as to substantially improve the performance of feed pump anti-cavitation, fore pump makes in power plant
With relatively broad.
Existing fore pump is general in installation process to carry out sealing installation in the form of mechanical seal, in mechanical seal
In order to ensure the security performance of each pipeline of power plant during use, encapsulant, sealing material are typically added in mechanical seal
Expect price costly, substantially increase the use cost of fore pump.Therefore, a kind of power plant's fore pump is proposed regarding to the issue above
Use mechanically-sealing apparatus.
Utility model content
The purpose of this utility model is that provides a kind of power plant preposition mechanical seal for pump to solve the above problems
Device.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of preposition mechanical seal for pump dress of power plant
Put, including the pump housing and axis body is fixedly mounted on through the seal end plate of pump housing both sides end face, the axle by fixing bolt
The axis body surface of position and pump housing junction is fixed and has packer ring, is provided with stationary ring on the inside of the seal end plate, institute
The side end face for stating stationary ring is connected with rotating ring, and the top end face of the rotating ring is fitted with the spring seat of honour, and spring seat of honour bottom position
It is provided with caulking gum ring surface between spring lower seat, spring lower seat and the spring seat of honour and spring, the spring is installed
Two ends be separately fixed at spring stop and the central engagement plate positioned at spring seat of honour side positioned at spring seat of honour bottom end face,
And central engagement plate is fixed on packer ring outer side wall surface.
It is preferred that, the packer ring is fitted tightly over outside axis body surface, and packer ring and seal end plate end
Side surface is brought into close contact.
It is preferred that, the gap between the stationary ring and seal end plate is filled by stationary ring sealing ring, and stationary ring sealing ring with it is quiet
Ring is interference fit with seal end plate.
It is preferred that, the junction between the rotating ring and stationary ring is provided with and the rectangular cross-section structure of axis body interference fit
Seal ring of moving ring.
It is preferred that, the auxiliary seal ring provided with interference fit between the junction of the rotating ring and spring stop and axis body.
It is preferred that, the stationary ring and rotating ring are integrated or mutually non-dismountable structure, and stationary ring and the equal position of rotating ring
In spring seat of honour bottom.
The beneficial effects of the utility model are：The utility model reasonable in design, the installation foundation of whole device is close
Seal rubber ring, the primary seals of whole device realized by packer ring, by auxiliary seal ring and seal ring of moving ring and
Three sealing rings of stationary ring sealing ring replace traditional airtight and watertight padding, greatly reduce the use of whole mechanically-sealing apparatus into
This, whole device passes through packer ring and axis body mediate contact, it is to avoid the high temperature with axis body direct friction generation is to whole
The infringement that device is produced, the service life of extension fixture.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
In figure：1st, the pump housing, 2, seal end plate, 3, fixing bolt, 4, stationary ring, 5, rotating ring, 6, spring lower seat, 7, on spring
Seat, 8, spring stop, 9, spring, 10, central engagement plate, 11, auxiliary seal ring, 12, seal ring of moving ring, 13, stationary ring sealing ring,
14th, packer ring, 15, axis body.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to shown in Fig. 1, a kind of preposition mechanical sealing device used for pump of power plant, including the pump housing 1 and pass through fixing bolt 3
Axis body 15 is fixedly mounted on through the seal end plate 2 of the both sides end face of the pump housing 1, the axis body 15 and the axle of the junction of the pump housing 1
The surface of body 15, which is fixed, packer ring 14, and the inner side of seal end plate 2 is provided with stationary ring 4, a side of the stationary ring 4
Face is connected with rotating ring 5, and the top end face of the rotating ring 5 is fitted with the spring seat of honour 7, and the bottom of the spring seat of honour 7 is located at caulking gum
The surface of ring 14 is provided with spring lower seat 6, and spring 9, the two of the spring 9 are provided between the spring lower seat 6 and the spring seat of honour 7
End is separately fixed at spring stop 8 and the central engagement plate positioned at the side of the spring seat of honour 7 positioned at the bottom end face of the spring seat of honour 7
10, and central engagement plate 10 is fixed on the outer side wall surface of packer ring 14.
As a kind of technical optimization scheme of the present utility model, the packer ring 14 is fitted tightly over the table of axis body 15
Face, and packer ring 14 is brought into close contact with the end outer surface of seal end plate 2, and the base of device is realized by packer ring 14
Plinth is sealed.
As a kind of technical optimization scheme of the present utility model, the gap between the stationary ring 4 and seal end plate 2 is by stationary ring
Sealing ring 13 is filled, and stationary ring sealing ring 13 and stationary ring 4 and seal end plate 2 are interference fit, improve the sealing property of device.
As a kind of technical optimization scheme of the present utility model, the junction between the rotating ring 5 and stationary ring 4 is provided with and axle
The seal ring of moving ring 12 for the rectangular cross-section structure that body 15 is interference fitted, improves the sealing property of device.
As a kind of technical optimization scheme of the present utility model, junction and axis body 15 of the rotating ring 5 with spring stop 8
Between provided with interference fit auxiliary seal ring 11, improve device sealing property.
As a kind of technical optimization scheme of the present utility model, the stationary ring 4 and rotating ring 5 be integrated or mutually not
Demountable structure, and stationary ring 4 and rotating ring 5 are respectively positioned on the bottom of the spring seat of honour 7, improve the compactedness of apparatus structure.
When in use, when axis body 15 is rotated, seal end plate 2 compresses axis body to the utility model by packer ring 14
15, rotating ring 5 realizes that whole device is sealedly finely tuned under the regulation of spring 9, auxiliary seal ring 11, seal ring of moving ring 12 and stationary ring
Sealing ring 13 is separately mounted to the two ends and middle part of stationary ring 4 and rotating ring 5, replaces in traditional mechanically-sealing apparatus and seals
The use of packing material.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is limited by appended claims rather than described above, it is intended that obtaining containing with important document in claim by falling
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (6)
1. a kind of preposition mechanical sealing device used for pump of power plant, including the pump housing（1）And pass through fixing bolt（3）It is fixedly mounted on axle
Body（15）Through the pump housing（1）The seal end plate of both sides end face（2）, it is characterised in that：The axis body（15）Position and the pump housing（1）Even
Connect the axis body at place（15）Surface, which is fixed, packer ring（14）, the seal end plate（2）Inner side is provided with stationary ring（4）,
The stationary ring（4）A side end face be connected with rotating ring（5）, the rotating ring（5）Top end face be fitted with the spring seat of honour（7）, and
The spring seat of honour（7）Bottom is located at packer ring（14）Surface is provided with spring lower seat（6）, the spring lower seat（6）And spring
The seat of honour（7）Between spring is installed（9）, the spring（9）Two ends be separately fixed at positioned at the spring seat of honour（7）Bottom end face
Spring stop（8）With positioned at the spring seat of honour（7）The central engagement plate of side（10）, and central engagement plate（10）It is fixed on sealing rubber
Glue ring（14）Outer side wall surface.
2. the preposition mechanical sealing device used for pump of a kind of power plant according to claim 1, it is characterised in that：The caulking gum
Ring（14）It is fitted tightly over axis body（15）Surface, and packer ring（14）With seal end plate（2）End outer surface is closely pasted
Close.
3. the preposition mechanical sealing device used for pump of a kind of power plant according to claim 1, it is characterised in that：The stationary ring（4）
With seal end plate（2）Between gap by stationary ring sealing ring（13）Filling, and stationary ring sealing ring（13）With stationary ring（4）With stationary ring pressure
Lid（2）For interference fit.
4. the preposition mechanical sealing device used for pump of a kind of power plant according to claim 1, it is characterised in that：The rotating ring（5）
With stationary ring（4）Between junction be provided with and axis body（15）The seal ring of moving ring of the rectangular cross-section structure of interference fit（12）.
5. the preposition mechanical sealing device used for pump of a kind of power plant according to claim 1, it is characterised in that：The rotating ring（5）
With spring stop（8）Junction and axis body（15）Between provided with interference fit auxiliary seal ring（11）.
6. the preposition mechanical sealing device used for pump of a kind of power plant according to claim 1, it is characterised in that：The stationary ring（4）
And rotating ring（5）It is integrated or mutually non-dismountable structure, and stationary ring（4）And rotating ring（5）It is respectively positioned on the spring seat of honour（7）Bottom
Portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063906.7U CN206449001U (en) | 2017-01-19 | 2017-01-19 | A kind of preposition mechanical sealing device used for pump of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063906.7U CN206449001U (en) | 2017-01-19 | 2017-01-19 | A kind of preposition mechanical sealing device used for pump of power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449001U true CN206449001U (en) | 2017-08-29 |
Family
ID=59666743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720063906.7U Expired - Fee Related CN206449001U (en) | 2017-01-19 | 2017-01-19 | A kind of preposition mechanical sealing device used for pump of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066001A (en) * | 2020-09-02 | 2020-12-11 | 东台市光明机械密封有限公司 | Mechanical sealing element for high-pressure autoclave and manufacturing process thereof |
-
2017
- 2017-01-19 CN CN201720063906.7U patent/CN206449001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066001A (en) * | 2020-09-02 | 2020-12-11 | 东台市光明机械密封有限公司 | Mechanical sealing element for high-pressure autoclave and manufacturing process thereof |
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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 |
Granted publication date: 20170829 Termination date: 20180119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |